Commit | Line | Data |
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252b5132 | 1 | /* PowerPC-specific support for 32-bit ELF |
86bbe32f | 2 | Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 |
7898deda | 3 | Free Software Foundation, Inc. |
252b5132 RH |
4 | Written by Ian Lance Taylor, Cygnus Support. |
5 | ||
ae9a127f | 6 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 7 | |
ae9a127f NC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
252b5132 | 12 | |
ae9a127f NC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
252b5132 | 17 | |
ae9a127f NC |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
252b5132 RH |
21 | |
22 | /* This file is based on a preliminary PowerPC ELF ABI. The | |
23 | information may not match the final PowerPC ELF ABI. It includes | |
24 | suggestions from the in-progress Embedded PowerPC ABI, and that | |
25 | information may also not match. */ | |
26 | ||
27 | #include "bfd.h" | |
28 | #include "sysdep.h" | |
29 | #include "bfdlink.h" | |
30 | #include "libbfd.h" | |
31 | #include "elf-bfd.h" | |
32 | #include "elf/ppc.h" | |
7619e7c7 | 33 | #include "elf32-ppc.h" |
252b5132 | 34 | |
f0fe0e16 | 35 | /* RELA relocations are used here. */ |
252b5132 | 36 | |
7fce784e AS |
37 | static struct bfd_hash_entry *ppc_elf_link_hash_newfunc |
38 | PARAMS ((struct bfd_hash_entry *entry, struct bfd_hash_table *table, | |
39 | const char *string)); | |
40 | static struct bfd_link_hash_table *ppc_elf_link_hash_table_create | |
41 | PARAMS ((bfd *abfd)); | |
42 | static void ppc_elf_copy_indirect_symbol | |
43 | PARAMS ((struct elf_backend_data *bed, struct elf_link_hash_entry *dir, | |
44 | struct elf_link_hash_entry *ind)); | |
252b5132 RH |
45 | static reloc_howto_type *ppc_elf_reloc_type_lookup |
46 | PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); | |
47 | static void ppc_elf_info_to_howto | |
947216bf | 48 | PARAMS ((bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)); |
b34976b6 AM |
49 | static void ppc_elf_howto_init |
50 | PARAMS ((void)); | |
51 | static int ppc_elf_sort_rela | |
52 | PARAMS ((const PTR, const PTR)); | |
53 | static bfd_boolean ppc_elf_relax_section | |
54 | PARAMS ((bfd *, asection *, struct bfd_link_info *, bfd_boolean *)); | |
252b5132 RH |
55 | static bfd_reloc_status_type ppc_elf_addr16_ha_reloc |
56 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
7619e7c7 AM |
57 | static bfd_reloc_status_type ppc_elf_unhandled_reloc |
58 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
b34976b6 AM |
59 | static bfd_boolean ppc_elf_object_p |
60 | PARAMS ((bfd *)); | |
61 | static bfd_boolean ppc_elf_set_private_flags | |
62 | PARAMS ((bfd *, flagword)); | |
63 | static bfd_boolean ppc_elf_merge_private_bfd_data | |
64 | PARAMS ((bfd *, bfd *)); | |
65 | static int ppc_elf_additional_program_headers | |
66 | PARAMS ((bfd *)); | |
67 | static bfd_boolean ppc_elf_modify_segment_map | |
68 | PARAMS ((bfd *)); | |
7619e7c7 | 69 | static bfd_boolean ppc_elf_create_got |
41fcb14e | 70 | PARAMS ((bfd *, struct bfd_link_info *)); |
b34976b6 | 71 | static bfd_boolean ppc_elf_create_dynamic_sections |
252b5132 | 72 | PARAMS ((bfd *, struct bfd_link_info *)); |
b34976b6 AM |
73 | static bfd_boolean ppc_elf_section_from_shdr |
74 | PARAMS ((bfd *, Elf_Internal_Shdr *, const char *)); | |
75 | static bfd_boolean ppc_elf_fake_sections | |
947216bf | 76 | PARAMS ((bfd *, Elf_Internal_Shdr *, asection *)); |
252b5132 | 77 | static elf_linker_section_t *ppc_elf_create_linker_section |
b34976b6 | 78 | PARAMS ((bfd *abfd, struct bfd_link_info *info, |
252b5132 | 79 | enum elf_linker_section_enum)); |
7619e7c7 AM |
80 | static bfd_boolean update_local_sym_info |
81 | PARAMS ((bfd *, Elf_Internal_Shdr *, unsigned long, int)); | |
82 | static void bad_shared_reloc | |
83 | PARAMS ((bfd *, enum elf_ppc_reloc_type)); | |
b34976b6 AM |
84 | static bfd_boolean ppc_elf_check_relocs |
85 | PARAMS ((bfd *, struct bfd_link_info *, asection *, | |
86 | const Elf_Internal_Rela *)); | |
87 | static asection * ppc_elf_gc_mark_hook | |
88 | PARAMS ((asection *sec, struct bfd_link_info *info, Elf_Internal_Rela *rel, | |
89 | struct elf_link_hash_entry *h, Elf_Internal_Sym *sym)); | |
90 | static bfd_boolean ppc_elf_gc_sweep_hook | |
91 | PARAMS ((bfd *abfd, struct bfd_link_info *info, asection *sec, | |
92 | const Elf_Internal_Rela *relocs)); | |
93 | static bfd_boolean ppc_elf_adjust_dynamic_symbol | |
94 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
7fce784e AS |
95 | static bfd_boolean allocate_dynrelocs |
96 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
97 | static bfd_boolean readonly_dynrelocs | |
98 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
b34976b6 AM |
99 | static bfd_boolean ppc_elf_size_dynamic_sections |
100 | PARAMS ((bfd *, struct bfd_link_info *)); | |
101 | static bfd_boolean ppc_elf_relocate_section | |
102 | PARAMS ((bfd *, struct bfd_link_info *info, bfd *, asection *, bfd_byte *, | |
103 | Elf_Internal_Rela *relocs, Elf_Internal_Sym *local_syms, | |
104 | asection **)); | |
105 | static bfd_boolean ppc_elf_add_symbol_hook | |
106 | PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, | |
107 | const char **, flagword *, asection **, bfd_vma *)); | |
108 | static bfd_boolean ppc_elf_finish_dynamic_symbol | |
109 | PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, | |
110 | Elf_Internal_Sym *)); | |
111 | static bfd_boolean ppc_elf_finish_dynamic_sections | |
112 | PARAMS ((bfd *, struct bfd_link_info *)); | |
f51e552e AM |
113 | static enum elf_reloc_type_class ppc_elf_reloc_type_class |
114 | PARAMS ((const Elf_Internal_Rela *)); | |
b34976b6 | 115 | static bfd_boolean ppc_elf_grok_prstatus |
2e67030c | 116 | PARAMS ((bfd *abfd, Elf_Internal_Note *note)); |
b34976b6 | 117 | static bfd_boolean ppc_elf_grok_psinfo |
2e67030c | 118 | PARAMS ((bfd *abfd, Elf_Internal_Note *note)); |
252b5132 | 119 | |
ae9a127f NC |
120 | #define BRANCH_PREDICT_BIT 0x200000 /* Branch prediction bit for branch taken relocs. */ |
121 | #define RA_REGISTER_MASK 0x001f0000 /* Mask to set RA in memory instructions. */ | |
122 | #define RA_REGISTER_SHIFT 16 /* Value to shift register by to insert RA. */ | |
252b5132 RH |
123 | |
124 | /* The name of the dynamic interpreter. This is put in the .interp | |
125 | section. */ | |
126 | ||
127 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
128 | ||
129 | /* The size in bytes of an entry in the procedure linkage table. */ | |
130 | #define PLT_ENTRY_SIZE 12 | |
131 | /* The initial size of the plt reserved for the dynamic linker. */ | |
132 | #define PLT_INITIAL_ENTRY_SIZE 72 | |
133 | /* The size of the gap between entries in the PLT. */ | |
134 | #define PLT_SLOT_SIZE 8 | |
135 | /* The number of single-slot PLT entries (the rest use two slots). */ | |
136 | #define PLT_NUM_SINGLE_ENTRIES 8192 | |
137 | ||
7619e7c7 AM |
138 | /* Some nop instructions. */ |
139 | #define NOP 0x60000000 | |
140 | #define CROR_151515 0x4def7b82 | |
141 | #define CROR_313131 0x4ffffb82 | |
142 | ||
143 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
144 | #define TP_OFFSET 0x7000 | |
145 | #define DTP_OFFSET 0x8000 | |
146 | ||
e1e0340b GK |
147 | /* Will references to this symbol always reference the symbol |
148 | in this object? */ | |
149 | #define SYMBOL_REFERENCES_LOCAL(INFO, H) \ | |
150 | ((! INFO->shared \ | |
151 | || INFO->symbolic \ | |
152 | || H->dynindx == -1 \ | |
153 | || ELF_ST_VISIBILITY (H->other) == STV_INTERNAL \ | |
154 | || ELF_ST_VISIBILITY (H->other) == STV_HIDDEN) \ | |
155 | && (H->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0) | |
156 | ||
157 | /* Will _calls_ to this symbol always call the version in this object? */ | |
158 | #define SYMBOL_CALLS_LOCAL(INFO, H) \ | |
159 | ((! INFO->shared \ | |
160 | || INFO->symbolic \ | |
161 | || H->dynindx == -1 \ | |
162 | || ELF_ST_VISIBILITY (H->other) != STV_DEFAULT) \ | |
163 | && (H->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0) | |
252b5132 | 164 | \f |
7fce784e AS |
165 | /* The PPC linker needs to keep track of the number of relocs that it |
166 | decides to copy as dynamic relocs in check_relocs for each symbol. | |
167 | This is so that it can later discard them if they are found to be | |
168 | unnecessary. We store the information in a field extending the | |
169 | regular ELF linker hash table. */ | |
170 | ||
171 | struct ppc_elf_dyn_relocs | |
172 | { | |
173 | struct ppc_elf_dyn_relocs *next; | |
174 | ||
175 | /* The input section of the reloc. */ | |
176 | asection *sec; | |
177 | ||
178 | /* Total number of relocs copied for the input section. */ | |
179 | bfd_size_type count; | |
180 | }; | |
181 | ||
182 | /* PPC ELF linker hash entry. */ | |
183 | ||
184 | struct ppc_elf_link_hash_entry | |
185 | { | |
7619e7c7 | 186 | struct elf_link_hash_entry elf; |
7fce784e AS |
187 | |
188 | /* Track dynamic relocs copied for this symbol. */ | |
189 | struct ppc_elf_dyn_relocs *dyn_relocs; | |
7619e7c7 AM |
190 | |
191 | /* Contexts in which symbol is used in the GOT (or TOC). | |
192 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the | |
193 | corresponding relocs are encountered during check_relocs. | |
194 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
195 | indicate the corresponding GOT entry type is not needed. */ | |
196 | #define TLS_GD 1 /* GD reloc. */ | |
197 | #define TLS_LD 2 /* LD reloc. */ | |
198 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
199 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
200 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
201 | #define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */ | |
202 | char tls_mask; | |
7fce784e AS |
203 | }; |
204 | ||
205 | #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent)) | |
206 | ||
207 | /* PPC ELF linker hash table. */ | |
208 | ||
209 | struct ppc_elf_link_hash_table | |
210 | { | |
7619e7c7 AM |
211 | struct elf_link_hash_table elf; |
212 | ||
213 | /* Short-cuts to get to dynamic linker sections. */ | |
214 | asection *got; | |
215 | asection *relgot; | |
216 | asection *plt; | |
217 | asection *relplt; | |
218 | asection *dynbss; | |
219 | asection *relbss; | |
220 | asection *dynsbss; | |
221 | asection *relsbss; | |
222 | elf_linker_section_t *sdata; | |
223 | elf_linker_section_t *sdata2; | |
224 | ||
225 | /* Short-cut to first output tls section. */ | |
226 | asection *tls_sec; | |
227 | ||
228 | /* Shortcut to .__tls_get_addr. */ | |
229 | struct elf_link_hash_entry *tls_get_addr; | |
230 | ||
231 | /* TLS local dynamic got entry handling. */ | |
232 | union { | |
233 | bfd_signed_vma refcount; | |
234 | bfd_vma offset; | |
235 | } tlsld_got; | |
7fce784e AS |
236 | |
237 | /* Small local sym to section mapping cache. */ | |
238 | struct sym_sec_cache sym_sec; | |
239 | }; | |
240 | ||
241 | /* Get the PPC ELF linker hash table from a link_info structure. */ | |
242 | ||
243 | #define ppc_elf_hash_table(p) \ | |
244 | ((struct ppc_elf_link_hash_table *) (p)->hash) | |
245 | ||
246 | /* Create an entry in a PPC ELF linker hash table. */ | |
247 | ||
248 | static struct bfd_hash_entry * | |
249 | ppc_elf_link_hash_newfunc (entry, table, string) | |
250 | struct bfd_hash_entry *entry; | |
251 | struct bfd_hash_table *table; | |
252 | const char *string; | |
253 | { | |
254 | /* Allocate the structure if it has not already been allocated by a | |
255 | subclass. */ | |
256 | if (entry == NULL) | |
257 | { | |
258 | entry = bfd_hash_allocate (table, | |
259 | sizeof (struct ppc_elf_link_hash_entry)); | |
260 | if (entry == NULL) | |
261 | return entry; | |
262 | } | |
263 | ||
264 | /* Call the allocation method of the superclass. */ | |
265 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
266 | if (entry != NULL) | |
7619e7c7 AM |
267 | { |
268 | ppc_elf_hash_entry (entry)->dyn_relocs = NULL; | |
269 | ppc_elf_hash_entry (entry)->tls_mask = 0; | |
270 | } | |
7fce784e AS |
271 | |
272 | return entry; | |
273 | } | |
274 | ||
275 | /* Create a PPC ELF linker hash table. */ | |
276 | ||
277 | static struct bfd_link_hash_table * | |
278 | ppc_elf_link_hash_table_create (abfd) | |
279 | bfd *abfd; | |
280 | { | |
281 | struct ppc_elf_link_hash_table *ret; | |
282 | ||
283 | ret = ((struct ppc_elf_link_hash_table *) | |
284 | bfd_malloc (sizeof (struct ppc_elf_link_hash_table))); | |
285 | if (ret == NULL) | |
286 | return NULL; | |
287 | ||
7619e7c7 | 288 | if (! _bfd_elf_link_hash_table_init (&ret->elf, abfd, |
7fce784e AS |
289 | ppc_elf_link_hash_newfunc)) |
290 | { | |
291 | free (ret); | |
292 | return NULL; | |
293 | } | |
294 | ||
7619e7c7 AM |
295 | ret->got = NULL; |
296 | ret->relgot = NULL; | |
297 | ret->plt = NULL; | |
298 | ret->relplt = NULL; | |
299 | ret->dynbss = NULL; | |
300 | ret->relbss = NULL; | |
301 | ret->dynsbss = NULL; | |
302 | ret->relsbss = NULL; | |
303 | ret->sdata = NULL; | |
304 | ret->sdata2 = NULL; | |
305 | ret->tls_sec = NULL; | |
306 | ret->tls_get_addr = NULL; | |
307 | ret->tlsld_got.refcount = 0; | |
7fce784e AS |
308 | ret->sym_sec.abfd = NULL; |
309 | ||
7619e7c7 | 310 | return &ret->elf.root; |
7fce784e AS |
311 | } |
312 | ||
313 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ | |
314 | ||
315 | static void | |
316 | ppc_elf_copy_indirect_symbol (bed, dir, ind) | |
317 | struct elf_backend_data *bed; | |
318 | struct elf_link_hash_entry *dir, *ind; | |
319 | { | |
320 | struct ppc_elf_link_hash_entry *edir, *eind; | |
321 | ||
322 | edir = (struct ppc_elf_link_hash_entry *) dir; | |
323 | eind = (struct ppc_elf_link_hash_entry *) ind; | |
324 | ||
325 | if (eind->dyn_relocs != NULL) | |
326 | { | |
327 | if (edir->dyn_relocs != NULL) | |
328 | { | |
329 | struct ppc_elf_dyn_relocs **pp; | |
330 | struct ppc_elf_dyn_relocs *p; | |
331 | ||
332 | if (ind->root.type == bfd_link_hash_indirect) | |
333 | abort (); | |
334 | ||
335 | /* Add reloc counts against the weak sym to the strong sym | |
336 | list. Merge any entries against the same section. */ | |
337 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
338 | { | |
339 | struct ppc_elf_dyn_relocs *q; | |
340 | ||
341 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
342 | if (q->sec == p->sec) | |
343 | { | |
344 | q->count += p->count; | |
345 | *pp = p->next; | |
346 | break; | |
347 | } | |
348 | if (q == NULL) | |
349 | pp = &p->next; | |
350 | } | |
351 | *pp = edir->dyn_relocs; | |
352 | } | |
353 | ||
354 | edir->dyn_relocs = eind->dyn_relocs; | |
355 | eind->dyn_relocs = NULL; | |
356 | } | |
357 | ||
7619e7c7 AM |
358 | edir->tls_mask |= eind->tls_mask; |
359 | ||
7fce784e AS |
360 | _bfd_elf_link_hash_copy_indirect (bed, dir, ind); |
361 | } | |
362 | \f | |
8da6118f | 363 | static reloc_howto_type *ppc_elf_howto_table[(int) R_PPC_max]; |
252b5132 | 364 | |
8da6118f | 365 | static reloc_howto_type ppc_elf_howto_raw[] = { |
252b5132 RH |
366 | /* This reloc does nothing. */ |
367 | HOWTO (R_PPC_NONE, /* type */ | |
368 | 0, /* rightshift */ | |
369 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
370 | 32, /* bitsize */ | |
b34976b6 | 371 | FALSE, /* pc_relative */ |
252b5132 RH |
372 | 0, /* bitpos */ |
373 | complain_overflow_bitfield, /* complain_on_overflow */ | |
374 | bfd_elf_generic_reloc, /* special_function */ | |
375 | "R_PPC_NONE", /* name */ | |
b34976b6 | 376 | FALSE, /* partial_inplace */ |
252b5132 RH |
377 | 0, /* src_mask */ |
378 | 0, /* dst_mask */ | |
b34976b6 | 379 | FALSE), /* pcrel_offset */ |
252b5132 RH |
380 | |
381 | /* A standard 32 bit relocation. */ | |
382 | HOWTO (R_PPC_ADDR32, /* type */ | |
383 | 0, /* rightshift */ | |
384 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
385 | 32, /* bitsize */ | |
b34976b6 | 386 | FALSE, /* pc_relative */ |
252b5132 RH |
387 | 0, /* bitpos */ |
388 | complain_overflow_bitfield, /* complain_on_overflow */ | |
389 | bfd_elf_generic_reloc, /* special_function */ | |
390 | "R_PPC_ADDR32", /* name */ | |
b34976b6 | 391 | FALSE, /* partial_inplace */ |
252b5132 RH |
392 | 0, /* src_mask */ |
393 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 394 | FALSE), /* pcrel_offset */ |
252b5132 RH |
395 | |
396 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
397 | FIXME: we don't check that, we just clear them. */ | |
398 | HOWTO (R_PPC_ADDR24, /* type */ | |
399 | 0, /* rightshift */ | |
400 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
401 | 26, /* bitsize */ | |
b34976b6 | 402 | FALSE, /* pc_relative */ |
252b5132 RH |
403 | 0, /* bitpos */ |
404 | complain_overflow_bitfield, /* complain_on_overflow */ | |
405 | bfd_elf_generic_reloc, /* special_function */ | |
406 | "R_PPC_ADDR24", /* name */ | |
b34976b6 | 407 | FALSE, /* partial_inplace */ |
252b5132 RH |
408 | 0, /* src_mask */ |
409 | 0x3fffffc, /* dst_mask */ | |
b34976b6 | 410 | FALSE), /* pcrel_offset */ |
252b5132 RH |
411 | |
412 | /* A standard 16 bit relocation. */ | |
413 | HOWTO (R_PPC_ADDR16, /* type */ | |
414 | 0, /* rightshift */ | |
415 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
416 | 16, /* bitsize */ | |
b34976b6 | 417 | FALSE, /* pc_relative */ |
252b5132 RH |
418 | 0, /* bitpos */ |
419 | complain_overflow_bitfield, /* complain_on_overflow */ | |
420 | bfd_elf_generic_reloc, /* special_function */ | |
421 | "R_PPC_ADDR16", /* name */ | |
b34976b6 | 422 | FALSE, /* partial_inplace */ |
252b5132 RH |
423 | 0, /* src_mask */ |
424 | 0xffff, /* dst_mask */ | |
b34976b6 | 425 | FALSE), /* pcrel_offset */ |
252b5132 RH |
426 | |
427 | /* A 16 bit relocation without overflow. */ | |
428 | HOWTO (R_PPC_ADDR16_LO, /* type */ | |
429 | 0, /* rightshift */ | |
430 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
431 | 16, /* bitsize */ | |
b34976b6 | 432 | FALSE, /* pc_relative */ |
252b5132 RH |
433 | 0, /* bitpos */ |
434 | complain_overflow_dont,/* complain_on_overflow */ | |
435 | bfd_elf_generic_reloc, /* special_function */ | |
436 | "R_PPC_ADDR16_LO", /* name */ | |
b34976b6 | 437 | FALSE, /* partial_inplace */ |
252b5132 RH |
438 | 0, /* src_mask */ |
439 | 0xffff, /* dst_mask */ | |
b34976b6 | 440 | FALSE), /* pcrel_offset */ |
252b5132 RH |
441 | |
442 | /* The high order 16 bits of an address. */ | |
443 | HOWTO (R_PPC_ADDR16_HI, /* type */ | |
444 | 16, /* rightshift */ | |
445 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
446 | 16, /* bitsize */ | |
b34976b6 | 447 | FALSE, /* pc_relative */ |
252b5132 RH |
448 | 0, /* bitpos */ |
449 | complain_overflow_dont, /* complain_on_overflow */ | |
450 | bfd_elf_generic_reloc, /* special_function */ | |
451 | "R_PPC_ADDR16_HI", /* name */ | |
b34976b6 | 452 | FALSE, /* partial_inplace */ |
252b5132 RH |
453 | 0, /* src_mask */ |
454 | 0xffff, /* dst_mask */ | |
b34976b6 | 455 | FALSE), /* pcrel_offset */ |
252b5132 RH |
456 | |
457 | /* The high order 16 bits of an address, plus 1 if the contents of | |
8da6118f | 458 | the low 16 bits, treated as a signed number, is negative. */ |
252b5132 RH |
459 | HOWTO (R_PPC_ADDR16_HA, /* type */ |
460 | 16, /* rightshift */ | |
461 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
462 | 16, /* bitsize */ | |
b34976b6 | 463 | FALSE, /* pc_relative */ |
252b5132 RH |
464 | 0, /* bitpos */ |
465 | complain_overflow_dont, /* complain_on_overflow */ | |
466 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
467 | "R_PPC_ADDR16_HA", /* name */ | |
b34976b6 | 468 | FALSE, /* partial_inplace */ |
252b5132 RH |
469 | 0, /* src_mask */ |
470 | 0xffff, /* dst_mask */ | |
b34976b6 | 471 | FALSE), /* pcrel_offset */ |
252b5132 RH |
472 | |
473 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
474 | FIXME: we don't check that, we just clear them. */ | |
475 | HOWTO (R_PPC_ADDR14, /* type */ | |
476 | 0, /* rightshift */ | |
477 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
478 | 16, /* bitsize */ | |
b34976b6 | 479 | FALSE, /* pc_relative */ |
252b5132 RH |
480 | 0, /* bitpos */ |
481 | complain_overflow_bitfield, /* complain_on_overflow */ | |
482 | bfd_elf_generic_reloc, /* special_function */ | |
483 | "R_PPC_ADDR14", /* name */ | |
b34976b6 | 484 | FALSE, /* partial_inplace */ |
252b5132 RH |
485 | 0, /* src_mask */ |
486 | 0xfffc, /* dst_mask */ | |
b34976b6 | 487 | FALSE), /* pcrel_offset */ |
252b5132 RH |
488 | |
489 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
490 | indicate that the branch is expected to be taken. The lower two | |
8da6118f | 491 | bits must be zero. */ |
252b5132 RH |
492 | HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */ |
493 | 0, /* rightshift */ | |
494 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
495 | 16, /* bitsize */ | |
b34976b6 | 496 | FALSE, /* pc_relative */ |
252b5132 RH |
497 | 0, /* bitpos */ |
498 | complain_overflow_bitfield, /* complain_on_overflow */ | |
499 | bfd_elf_generic_reloc, /* special_function */ | |
500 | "R_PPC_ADDR14_BRTAKEN",/* name */ | |
b34976b6 | 501 | FALSE, /* partial_inplace */ |
252b5132 RH |
502 | 0, /* src_mask */ |
503 | 0xfffc, /* dst_mask */ | |
b34976b6 | 504 | FALSE), /* pcrel_offset */ |
252b5132 RH |
505 | |
506 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
507 | indicate that the branch is not expected to be taken. The lower | |
508 | two bits must be zero. */ | |
509 | HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */ | |
510 | 0, /* rightshift */ | |
511 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
512 | 16, /* bitsize */ | |
b34976b6 | 513 | FALSE, /* pc_relative */ |
252b5132 RH |
514 | 0, /* bitpos */ |
515 | complain_overflow_bitfield, /* complain_on_overflow */ | |
516 | bfd_elf_generic_reloc, /* special_function */ | |
517 | "R_PPC_ADDR14_BRNTAKEN",/* name */ | |
b34976b6 | 518 | FALSE, /* partial_inplace */ |
252b5132 RH |
519 | 0, /* src_mask */ |
520 | 0xfffc, /* dst_mask */ | |
b34976b6 | 521 | FALSE), /* pcrel_offset */ |
252b5132 | 522 | |
8da6118f | 523 | /* A relative 26 bit branch; the lower two bits must be zero. */ |
252b5132 RH |
524 | HOWTO (R_PPC_REL24, /* type */ |
525 | 0, /* rightshift */ | |
526 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
527 | 26, /* bitsize */ | |
b34976b6 | 528 | TRUE, /* pc_relative */ |
252b5132 RH |
529 | 0, /* bitpos */ |
530 | complain_overflow_signed, /* complain_on_overflow */ | |
531 | bfd_elf_generic_reloc, /* special_function */ | |
532 | "R_PPC_REL24", /* name */ | |
b34976b6 | 533 | FALSE, /* partial_inplace */ |
252b5132 RH |
534 | 0, /* src_mask */ |
535 | 0x3fffffc, /* dst_mask */ | |
b34976b6 | 536 | TRUE), /* pcrel_offset */ |
252b5132 | 537 | |
8da6118f | 538 | /* A relative 16 bit branch; the lower two bits must be zero. */ |
252b5132 RH |
539 | HOWTO (R_PPC_REL14, /* type */ |
540 | 0, /* rightshift */ | |
541 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
542 | 16, /* bitsize */ | |
b34976b6 | 543 | TRUE, /* pc_relative */ |
252b5132 RH |
544 | 0, /* bitpos */ |
545 | complain_overflow_signed, /* complain_on_overflow */ | |
546 | bfd_elf_generic_reloc, /* special_function */ | |
547 | "R_PPC_REL14", /* name */ | |
b34976b6 | 548 | FALSE, /* partial_inplace */ |
252b5132 RH |
549 | 0, /* src_mask */ |
550 | 0xfffc, /* dst_mask */ | |
b34976b6 | 551 | TRUE), /* pcrel_offset */ |
252b5132 | 552 | |
8da6118f | 553 | /* A relative 16 bit branch. Bit 10 should be set to indicate that |
252b5132 RH |
554 | the branch is expected to be taken. The lower two bits must be |
555 | zero. */ | |
556 | HOWTO (R_PPC_REL14_BRTAKEN, /* type */ | |
557 | 0, /* rightshift */ | |
558 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
559 | 16, /* bitsize */ | |
b34976b6 | 560 | TRUE, /* pc_relative */ |
252b5132 RH |
561 | 0, /* bitpos */ |
562 | complain_overflow_signed, /* complain_on_overflow */ | |
563 | bfd_elf_generic_reloc, /* special_function */ | |
564 | "R_PPC_REL14_BRTAKEN", /* name */ | |
b34976b6 | 565 | FALSE, /* partial_inplace */ |
252b5132 RH |
566 | 0, /* src_mask */ |
567 | 0xfffc, /* dst_mask */ | |
b34976b6 | 568 | TRUE), /* pcrel_offset */ |
252b5132 | 569 | |
8da6118f | 570 | /* A relative 16 bit branch. Bit 10 should be set to indicate that |
252b5132 RH |
571 | the branch is not expected to be taken. The lower two bits must |
572 | be zero. */ | |
573 | HOWTO (R_PPC_REL14_BRNTAKEN, /* type */ | |
574 | 0, /* rightshift */ | |
575 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
576 | 16, /* bitsize */ | |
b34976b6 | 577 | TRUE, /* pc_relative */ |
252b5132 RH |
578 | 0, /* bitpos */ |
579 | complain_overflow_signed, /* complain_on_overflow */ | |
580 | bfd_elf_generic_reloc, /* special_function */ | |
581 | "R_PPC_REL14_BRNTAKEN",/* name */ | |
b34976b6 | 582 | FALSE, /* partial_inplace */ |
252b5132 RH |
583 | 0, /* src_mask */ |
584 | 0xfffc, /* dst_mask */ | |
b34976b6 | 585 | TRUE), /* pcrel_offset */ |
252b5132 RH |
586 | |
587 | /* Like R_PPC_ADDR16, but referring to the GOT table entry for the | |
588 | symbol. */ | |
589 | HOWTO (R_PPC_GOT16, /* type */ | |
590 | 0, /* rightshift */ | |
591 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
592 | 16, /* bitsize */ | |
b34976b6 | 593 | FALSE, /* pc_relative */ |
252b5132 RH |
594 | 0, /* bitpos */ |
595 | complain_overflow_signed, /* complain_on_overflow */ | |
596 | bfd_elf_generic_reloc, /* special_function */ | |
597 | "R_PPC_GOT16", /* name */ | |
b34976b6 | 598 | FALSE, /* partial_inplace */ |
252b5132 RH |
599 | 0, /* src_mask */ |
600 | 0xffff, /* dst_mask */ | |
b34976b6 | 601 | FALSE), /* pcrel_offset */ |
252b5132 RH |
602 | |
603 | /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for | |
604 | the symbol. */ | |
605 | HOWTO (R_PPC_GOT16_LO, /* type */ | |
606 | 0, /* rightshift */ | |
607 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
608 | 16, /* bitsize */ | |
b34976b6 | 609 | FALSE, /* pc_relative */ |
252b5132 RH |
610 | 0, /* bitpos */ |
611 | complain_overflow_dont, /* complain_on_overflow */ | |
612 | bfd_elf_generic_reloc, /* special_function */ | |
613 | "R_PPC_GOT16_LO", /* name */ | |
b34976b6 | 614 | FALSE, /* partial_inplace */ |
252b5132 RH |
615 | 0, /* src_mask */ |
616 | 0xffff, /* dst_mask */ | |
b34976b6 | 617 | FALSE), /* pcrel_offset */ |
252b5132 RH |
618 | |
619 | /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for | |
620 | the symbol. */ | |
621 | HOWTO (R_PPC_GOT16_HI, /* type */ | |
622 | 16, /* rightshift */ | |
623 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
624 | 16, /* bitsize */ | |
b34976b6 | 625 | FALSE, /* pc_relative */ |
252b5132 RH |
626 | 0, /* bitpos */ |
627 | complain_overflow_bitfield, /* complain_on_overflow */ | |
628 | bfd_elf_generic_reloc, /* special_function */ | |
629 | "R_PPC_GOT16_HI", /* name */ | |
b34976b6 | 630 | FALSE, /* partial_inplace */ |
252b5132 RH |
631 | 0, /* src_mask */ |
632 | 0xffff, /* dst_mask */ | |
b34976b6 | 633 | FALSE), /* pcrel_offset */ |
252b5132 RH |
634 | |
635 | /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for | |
636 | the symbol. */ | |
637 | HOWTO (R_PPC_GOT16_HA, /* type */ | |
638 | 16, /* rightshift */ | |
639 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
640 | 16, /* bitsize */ | |
b34976b6 | 641 | FALSE, /* pc_relative */ |
252b5132 RH |
642 | 0, /* bitpos */ |
643 | complain_overflow_bitfield, /* complain_on_overflow */ | |
644 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
645 | "R_PPC_GOT16_HA", /* name */ | |
b34976b6 | 646 | FALSE, /* partial_inplace */ |
252b5132 RH |
647 | 0, /* src_mask */ |
648 | 0xffff, /* dst_mask */ | |
b34976b6 | 649 | FALSE), /* pcrel_offset */ |
252b5132 RH |
650 | |
651 | /* Like R_PPC_REL24, but referring to the procedure linkage table | |
652 | entry for the symbol. */ | |
653 | HOWTO (R_PPC_PLTREL24, /* type */ | |
654 | 0, /* rightshift */ | |
655 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
656 | 26, /* bitsize */ | |
b34976b6 | 657 | TRUE, /* pc_relative */ |
252b5132 RH |
658 | 0, /* bitpos */ |
659 | complain_overflow_signed, /* complain_on_overflow */ | |
660 | bfd_elf_generic_reloc, /* special_function */ | |
661 | "R_PPC_PLTREL24", /* name */ | |
b34976b6 | 662 | FALSE, /* partial_inplace */ |
252b5132 RH |
663 | 0, /* src_mask */ |
664 | 0x3fffffc, /* dst_mask */ | |
b34976b6 | 665 | TRUE), /* pcrel_offset */ |
252b5132 RH |
666 | |
667 | /* This is used only by the dynamic linker. The symbol should exist | |
668 | both in the object being run and in some shared library. The | |
669 | dynamic linker copies the data addressed by the symbol from the | |
670 | shared library into the object, because the object being | |
671 | run has to have the data at some particular address. */ | |
672 | HOWTO (R_PPC_COPY, /* type */ | |
673 | 0, /* rightshift */ | |
674 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
675 | 32, /* bitsize */ | |
b34976b6 | 676 | FALSE, /* pc_relative */ |
252b5132 RH |
677 | 0, /* bitpos */ |
678 | complain_overflow_bitfield, /* complain_on_overflow */ | |
679 | bfd_elf_generic_reloc, /* special_function */ | |
680 | "R_PPC_COPY", /* name */ | |
b34976b6 | 681 | FALSE, /* partial_inplace */ |
252b5132 RH |
682 | 0, /* src_mask */ |
683 | 0, /* dst_mask */ | |
b34976b6 | 684 | FALSE), /* pcrel_offset */ |
252b5132 RH |
685 | |
686 | /* Like R_PPC_ADDR32, but used when setting global offset table | |
687 | entries. */ | |
688 | HOWTO (R_PPC_GLOB_DAT, /* type */ | |
689 | 0, /* rightshift */ | |
690 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
691 | 32, /* bitsize */ | |
b34976b6 | 692 | FALSE, /* pc_relative */ |
252b5132 RH |
693 | 0, /* bitpos */ |
694 | complain_overflow_bitfield, /* complain_on_overflow */ | |
695 | bfd_elf_generic_reloc, /* special_function */ | |
696 | "R_PPC_GLOB_DAT", /* name */ | |
b34976b6 | 697 | FALSE, /* partial_inplace */ |
252b5132 RH |
698 | 0, /* src_mask */ |
699 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 700 | FALSE), /* pcrel_offset */ |
252b5132 RH |
701 | |
702 | /* Marks a procedure linkage table entry for a symbol. */ | |
703 | HOWTO (R_PPC_JMP_SLOT, /* type */ | |
704 | 0, /* rightshift */ | |
705 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
706 | 32, /* bitsize */ | |
b34976b6 | 707 | FALSE, /* pc_relative */ |
252b5132 RH |
708 | 0, /* bitpos */ |
709 | complain_overflow_bitfield, /* complain_on_overflow */ | |
710 | bfd_elf_generic_reloc, /* special_function */ | |
711 | "R_PPC_JMP_SLOT", /* name */ | |
b34976b6 | 712 | FALSE, /* partial_inplace */ |
252b5132 RH |
713 | 0, /* src_mask */ |
714 | 0, /* dst_mask */ | |
b34976b6 | 715 | FALSE), /* pcrel_offset */ |
252b5132 RH |
716 | |
717 | /* Used only by the dynamic linker. When the object is run, this | |
718 | longword is set to the load address of the object, plus the | |
719 | addend. */ | |
720 | HOWTO (R_PPC_RELATIVE, /* type */ | |
721 | 0, /* rightshift */ | |
722 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
723 | 32, /* bitsize */ | |
b34976b6 | 724 | FALSE, /* pc_relative */ |
252b5132 RH |
725 | 0, /* bitpos */ |
726 | complain_overflow_bitfield, /* complain_on_overflow */ | |
727 | bfd_elf_generic_reloc, /* special_function */ | |
728 | "R_PPC_RELATIVE", /* name */ | |
b34976b6 | 729 | FALSE, /* partial_inplace */ |
252b5132 RH |
730 | 0, /* src_mask */ |
731 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 732 | FALSE), /* pcrel_offset */ |
252b5132 RH |
733 | |
734 | /* Like R_PPC_REL24, but uses the value of the symbol within the | |
735 | object rather than the final value. Normally used for | |
736 | _GLOBAL_OFFSET_TABLE_. */ | |
737 | HOWTO (R_PPC_LOCAL24PC, /* type */ | |
738 | 0, /* rightshift */ | |
739 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
740 | 26, /* bitsize */ | |
b34976b6 | 741 | TRUE, /* pc_relative */ |
252b5132 RH |
742 | 0, /* bitpos */ |
743 | complain_overflow_signed, /* complain_on_overflow */ | |
744 | bfd_elf_generic_reloc, /* special_function */ | |
745 | "R_PPC_LOCAL24PC", /* name */ | |
b34976b6 | 746 | FALSE, /* partial_inplace */ |
252b5132 RH |
747 | 0, /* src_mask */ |
748 | 0x3fffffc, /* dst_mask */ | |
b34976b6 | 749 | TRUE), /* pcrel_offset */ |
252b5132 RH |
750 | |
751 | /* Like R_PPC_ADDR32, but may be unaligned. */ | |
752 | HOWTO (R_PPC_UADDR32, /* type */ | |
753 | 0, /* rightshift */ | |
754 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
755 | 32, /* bitsize */ | |
b34976b6 | 756 | FALSE, /* pc_relative */ |
252b5132 RH |
757 | 0, /* bitpos */ |
758 | complain_overflow_bitfield, /* complain_on_overflow */ | |
759 | bfd_elf_generic_reloc, /* special_function */ | |
760 | "R_PPC_UADDR32", /* name */ | |
b34976b6 | 761 | FALSE, /* partial_inplace */ |
252b5132 RH |
762 | 0, /* src_mask */ |
763 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 764 | FALSE), /* pcrel_offset */ |
252b5132 RH |
765 | |
766 | /* Like R_PPC_ADDR16, but may be unaligned. */ | |
767 | HOWTO (R_PPC_UADDR16, /* type */ | |
768 | 0, /* rightshift */ | |
769 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
770 | 16, /* bitsize */ | |
b34976b6 | 771 | FALSE, /* pc_relative */ |
252b5132 RH |
772 | 0, /* bitpos */ |
773 | complain_overflow_bitfield, /* complain_on_overflow */ | |
774 | bfd_elf_generic_reloc, /* special_function */ | |
775 | "R_PPC_UADDR16", /* name */ | |
b34976b6 | 776 | FALSE, /* partial_inplace */ |
252b5132 RH |
777 | 0, /* src_mask */ |
778 | 0xffff, /* dst_mask */ | |
b34976b6 | 779 | FALSE), /* pcrel_offset */ |
252b5132 RH |
780 | |
781 | /* 32-bit PC relative */ | |
782 | HOWTO (R_PPC_REL32, /* type */ | |
783 | 0, /* rightshift */ | |
784 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
785 | 32, /* bitsize */ | |
b34976b6 | 786 | TRUE, /* pc_relative */ |
252b5132 RH |
787 | 0, /* bitpos */ |
788 | complain_overflow_bitfield, /* complain_on_overflow */ | |
789 | bfd_elf_generic_reloc, /* special_function */ | |
790 | "R_PPC_REL32", /* name */ | |
b34976b6 | 791 | FALSE, /* partial_inplace */ |
252b5132 RH |
792 | 0, /* src_mask */ |
793 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 794 | TRUE), /* pcrel_offset */ |
252b5132 RH |
795 | |
796 | /* 32-bit relocation to the symbol's procedure linkage table. | |
c3668558 | 797 | FIXME: not supported. */ |
252b5132 RH |
798 | HOWTO (R_PPC_PLT32, /* type */ |
799 | 0, /* rightshift */ | |
800 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
801 | 32, /* bitsize */ | |
b34976b6 | 802 | FALSE, /* pc_relative */ |
252b5132 RH |
803 | 0, /* bitpos */ |
804 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805 | bfd_elf_generic_reloc, /* special_function */ | |
806 | "R_PPC_PLT32", /* name */ | |
b34976b6 | 807 | FALSE, /* partial_inplace */ |
252b5132 RH |
808 | 0, /* src_mask */ |
809 | 0, /* dst_mask */ | |
b34976b6 | 810 | FALSE), /* pcrel_offset */ |
252b5132 RH |
811 | |
812 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
c3668558 | 813 | FIXME: not supported. */ |
252b5132 RH |
814 | HOWTO (R_PPC_PLTREL32, /* type */ |
815 | 0, /* rightshift */ | |
816 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
817 | 32, /* bitsize */ | |
b34976b6 | 818 | TRUE, /* pc_relative */ |
252b5132 RH |
819 | 0, /* bitpos */ |
820 | complain_overflow_bitfield, /* complain_on_overflow */ | |
821 | bfd_elf_generic_reloc, /* special_function */ | |
822 | "R_PPC_PLTREL32", /* name */ | |
b34976b6 | 823 | FALSE, /* partial_inplace */ |
252b5132 RH |
824 | 0, /* src_mask */ |
825 | 0, /* dst_mask */ | |
b34976b6 | 826 | TRUE), /* pcrel_offset */ |
252b5132 RH |
827 | |
828 | /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for | |
829 | the symbol. */ | |
830 | HOWTO (R_PPC_PLT16_LO, /* type */ | |
831 | 0, /* rightshift */ | |
832 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
833 | 16, /* bitsize */ | |
b34976b6 | 834 | FALSE, /* pc_relative */ |
252b5132 RH |
835 | 0, /* bitpos */ |
836 | complain_overflow_dont, /* complain_on_overflow */ | |
837 | bfd_elf_generic_reloc, /* special_function */ | |
838 | "R_PPC_PLT16_LO", /* name */ | |
b34976b6 | 839 | FALSE, /* partial_inplace */ |
252b5132 RH |
840 | 0, /* src_mask */ |
841 | 0xffff, /* dst_mask */ | |
b34976b6 | 842 | FALSE), /* pcrel_offset */ |
252b5132 RH |
843 | |
844 | /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for | |
845 | the symbol. */ | |
846 | HOWTO (R_PPC_PLT16_HI, /* type */ | |
847 | 16, /* rightshift */ | |
848 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
849 | 16, /* bitsize */ | |
b34976b6 | 850 | FALSE, /* pc_relative */ |
252b5132 RH |
851 | 0, /* bitpos */ |
852 | complain_overflow_bitfield, /* complain_on_overflow */ | |
853 | bfd_elf_generic_reloc, /* special_function */ | |
854 | "R_PPC_PLT16_HI", /* name */ | |
b34976b6 | 855 | FALSE, /* partial_inplace */ |
252b5132 RH |
856 | 0, /* src_mask */ |
857 | 0xffff, /* dst_mask */ | |
b34976b6 | 858 | FALSE), /* pcrel_offset */ |
252b5132 RH |
859 | |
860 | /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for | |
861 | the symbol. */ | |
862 | HOWTO (R_PPC_PLT16_HA, /* type */ | |
863 | 16, /* rightshift */ | |
864 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
865 | 16, /* bitsize */ | |
b34976b6 | 866 | FALSE, /* pc_relative */ |
252b5132 RH |
867 | 0, /* bitpos */ |
868 | complain_overflow_bitfield, /* complain_on_overflow */ | |
869 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
870 | "R_PPC_PLT16_HA", /* name */ | |
b34976b6 | 871 | FALSE, /* partial_inplace */ |
252b5132 RH |
872 | 0, /* src_mask */ |
873 | 0xffff, /* dst_mask */ | |
b34976b6 | 874 | FALSE), /* pcrel_offset */ |
252b5132 RH |
875 | |
876 | /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with | |
877 | small data items. */ | |
878 | HOWTO (R_PPC_SDAREL16, /* type */ | |
879 | 0, /* rightshift */ | |
880 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
881 | 16, /* bitsize */ | |
b34976b6 | 882 | FALSE, /* pc_relative */ |
252b5132 RH |
883 | 0, /* bitpos */ |
884 | complain_overflow_signed, /* complain_on_overflow */ | |
885 | bfd_elf_generic_reloc, /* special_function */ | |
886 | "R_PPC_SDAREL16", /* name */ | |
b34976b6 | 887 | FALSE, /* partial_inplace */ |
252b5132 RH |
888 | 0, /* src_mask */ |
889 | 0xffff, /* dst_mask */ | |
b34976b6 | 890 | FALSE), /* pcrel_offset */ |
252b5132 | 891 | |
c061c2d8 | 892 | /* 16-bit section relative relocation. */ |
252b5132 RH |
893 | HOWTO (R_PPC_SECTOFF, /* type */ |
894 | 0, /* rightshift */ | |
c061c2d8 AM |
895 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
896 | 16, /* bitsize */ | |
b34976b6 | 897 | FALSE, /* pc_relative */ |
252b5132 RH |
898 | 0, /* bitpos */ |
899 | complain_overflow_bitfield, /* complain_on_overflow */ | |
900 | bfd_elf_generic_reloc, /* special_function */ | |
901 | "R_PPC_SECTOFF", /* name */ | |
b34976b6 | 902 | FALSE, /* partial_inplace */ |
252b5132 | 903 | 0, /* src_mask */ |
c061c2d8 | 904 | 0xffff, /* dst_mask */ |
b34976b6 | 905 | FALSE), /* pcrel_offset */ |
252b5132 | 906 | |
c3668558 | 907 | /* 16-bit lower half section relative relocation. */ |
252b5132 RH |
908 | HOWTO (R_PPC_SECTOFF_LO, /* type */ |
909 | 0, /* rightshift */ | |
910 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
911 | 16, /* bitsize */ | |
b34976b6 | 912 | FALSE, /* pc_relative */ |
252b5132 RH |
913 | 0, /* bitpos */ |
914 | complain_overflow_dont, /* complain_on_overflow */ | |
915 | bfd_elf_generic_reloc, /* special_function */ | |
916 | "R_PPC_SECTOFF_LO", /* name */ | |
b34976b6 | 917 | FALSE, /* partial_inplace */ |
252b5132 RH |
918 | 0, /* src_mask */ |
919 | 0xffff, /* dst_mask */ | |
b34976b6 | 920 | FALSE), /* pcrel_offset */ |
252b5132 | 921 | |
c3668558 | 922 | /* 16-bit upper half section relative relocation. */ |
252b5132 RH |
923 | HOWTO (R_PPC_SECTOFF_HI, /* type */ |
924 | 16, /* rightshift */ | |
925 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
926 | 16, /* bitsize */ | |
b34976b6 | 927 | FALSE, /* pc_relative */ |
252b5132 RH |
928 | 0, /* bitpos */ |
929 | complain_overflow_bitfield, /* complain_on_overflow */ | |
930 | bfd_elf_generic_reloc, /* special_function */ | |
931 | "R_PPC_SECTOFF_HI", /* name */ | |
b34976b6 | 932 | FALSE, /* partial_inplace */ |
252b5132 RH |
933 | 0, /* src_mask */ |
934 | 0xffff, /* dst_mask */ | |
b34976b6 | 935 | FALSE), /* pcrel_offset */ |
252b5132 | 936 | |
c3668558 | 937 | /* 16-bit upper half adjusted section relative relocation. */ |
252b5132 RH |
938 | HOWTO (R_PPC_SECTOFF_HA, /* type */ |
939 | 16, /* rightshift */ | |
940 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
941 | 16, /* bitsize */ | |
b34976b6 | 942 | FALSE, /* pc_relative */ |
252b5132 RH |
943 | 0, /* bitpos */ |
944 | complain_overflow_bitfield, /* complain_on_overflow */ | |
945 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
946 | "R_PPC_SECTOFF_HA", /* name */ | |
b34976b6 | 947 | FALSE, /* partial_inplace */ |
252b5132 RH |
948 | 0, /* src_mask */ |
949 | 0xffff, /* dst_mask */ | |
b34976b6 | 950 | FALSE), /* pcrel_offset */ |
252b5132 | 951 | |
7619e7c7 AM |
952 | /* Marker reloc for TLS. */ |
953 | HOWTO (R_PPC_TLS, | |
252b5132 RH |
954 | 0, /* rightshift */ |
955 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
956 | 32, /* bitsize */ | |
b34976b6 | 957 | FALSE, /* pc_relative */ |
252b5132 | 958 | 0, /* bitpos */ |
7619e7c7 | 959 | complain_overflow_dont, /* complain_on_overflow */ |
252b5132 | 960 | bfd_elf_generic_reloc, /* special_function */ |
7619e7c7 AM |
961 | "R_PPC_TLS", /* name */ |
962 | FALSE, /* partial_inplace */ | |
963 | 0, /* src_mask */ | |
964 | 0, /* dst_mask */ | |
965 | FALSE), /* pcrel_offset */ | |
966 | ||
967 | /* Computes the load module index of the load module that contains the | |
968 | definition of its TLS sym. */ | |
969 | HOWTO (R_PPC_DTPMOD32, | |
970 | 0, /* rightshift */ | |
971 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
972 | 32, /* bitsize */ | |
973 | FALSE, /* pc_relative */ | |
974 | 0, /* bitpos */ | |
975 | complain_overflow_dont, /* complain_on_overflow */ | |
976 | ppc_elf_unhandled_reloc, /* special_function */ | |
977 | "R_PPC_DTPMOD32", /* name */ | |
b34976b6 | 978 | FALSE, /* partial_inplace */ |
252b5132 RH |
979 | 0, /* src_mask */ |
980 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 981 | FALSE), /* pcrel_offset */ |
252b5132 | 982 | |
7619e7c7 AM |
983 | /* Computes a dtv-relative displacement, the difference between the value |
984 | of sym+add and the base address of the thread-local storage block that | |
985 | contains the definition of sym, minus 0x8000. */ | |
986 | HOWTO (R_PPC_DTPREL32, | |
987 | 0, /* rightshift */ | |
988 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
989 | 32, /* bitsize */ | |
990 | FALSE, /* pc_relative */ | |
991 | 0, /* bitpos */ | |
992 | complain_overflow_dont, /* complain_on_overflow */ | |
993 | ppc_elf_unhandled_reloc, /* special_function */ | |
994 | "R_PPC_DTPREL32", /* name */ | |
995 | FALSE, /* partial_inplace */ | |
996 | 0, /* src_mask */ | |
997 | 0xffffffff, /* dst_mask */ | |
998 | FALSE), /* pcrel_offset */ | |
999 | ||
1000 | /* A 16 bit dtprel reloc. */ | |
1001 | HOWTO (R_PPC_DTPREL16, | |
252b5132 RH |
1002 | 0, /* rightshift */ |
1003 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1004 | 16, /* bitsize */ | |
b34976b6 | 1005 | FALSE, /* pc_relative */ |
252b5132 | 1006 | 0, /* bitpos */ |
7619e7c7 AM |
1007 | complain_overflow_signed, /* complain_on_overflow */ |
1008 | ppc_elf_unhandled_reloc, /* special_function */ | |
1009 | "R_PPC_DTPREL16", /* name */ | |
b34976b6 | 1010 | FALSE, /* partial_inplace */ |
252b5132 RH |
1011 | 0, /* src_mask */ |
1012 | 0xffff, /* dst_mask */ | |
b34976b6 | 1013 | FALSE), /* pcrel_offset */ |
252b5132 | 1014 | |
7619e7c7 AM |
1015 | /* Like DTPREL16, but no overflow. */ |
1016 | HOWTO (R_PPC_DTPREL16_LO, | |
252b5132 RH |
1017 | 0, /* rightshift */ |
1018 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1019 | 16, /* bitsize */ | |
b34976b6 | 1020 | FALSE, /* pc_relative */ |
252b5132 | 1021 | 0, /* bitpos */ |
7619e7c7 AM |
1022 | complain_overflow_dont, /* complain_on_overflow */ |
1023 | ppc_elf_unhandled_reloc, /* special_function */ | |
1024 | "R_PPC_DTPREL16_LO", /* name */ | |
b34976b6 | 1025 | FALSE, /* partial_inplace */ |
252b5132 RH |
1026 | 0, /* src_mask */ |
1027 | 0xffff, /* dst_mask */ | |
b34976b6 | 1028 | FALSE), /* pcrel_offset */ |
252b5132 | 1029 | |
7619e7c7 AM |
1030 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ |
1031 | HOWTO (R_PPC_DTPREL16_HI, | |
252b5132 RH |
1032 | 16, /* rightshift */ |
1033 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1034 | 16, /* bitsize */ | |
b34976b6 | 1035 | FALSE, /* pc_relative */ |
252b5132 RH |
1036 | 0, /* bitpos */ |
1037 | complain_overflow_dont, /* complain_on_overflow */ | |
7619e7c7 AM |
1038 | ppc_elf_unhandled_reloc, /* special_function */ |
1039 | "R_PPC_DTPREL16_HI", /* name */ | |
b34976b6 | 1040 | FALSE, /* partial_inplace */ |
252b5132 RH |
1041 | 0, /* src_mask */ |
1042 | 0xffff, /* dst_mask */ | |
b34976b6 | 1043 | FALSE), /* pcrel_offset */ |
252b5132 | 1044 | |
7619e7c7 AM |
1045 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ |
1046 | HOWTO (R_PPC_DTPREL16_HA, | |
252b5132 RH |
1047 | 16, /* rightshift */ |
1048 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1049 | 16, /* bitsize */ | |
b34976b6 | 1050 | FALSE, /* pc_relative */ |
252b5132 RH |
1051 | 0, /* bitpos */ |
1052 | complain_overflow_dont, /* complain_on_overflow */ | |
7619e7c7 AM |
1053 | ppc_elf_unhandled_reloc, /* special_function */ |
1054 | "R_PPC_DTPREL16_HA", /* name */ | |
b34976b6 | 1055 | FALSE, /* partial_inplace */ |
252b5132 RH |
1056 | 0, /* src_mask */ |
1057 | 0xffff, /* dst_mask */ | |
b34976b6 | 1058 | FALSE), /* pcrel_offset */ |
252b5132 | 1059 | |
7619e7c7 AM |
1060 | /* Computes a tp-relative displacement, the difference between the value of |
1061 | sym+add and the value of the thread pointer (r13). */ | |
1062 | HOWTO (R_PPC_TPREL32, | |
1063 | 0, /* rightshift */ | |
1064 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1065 | 32, /* bitsize */ | |
1066 | FALSE, /* pc_relative */ | |
1067 | 0, /* bitpos */ | |
1068 | complain_overflow_dont, /* complain_on_overflow */ | |
1069 | ppc_elf_unhandled_reloc, /* special_function */ | |
1070 | "R_PPC_TPREL32", /* name */ | |
1071 | FALSE, /* partial_inplace */ | |
1072 | 0, /* src_mask */ | |
1073 | 0xffffffff, /* dst_mask */ | |
1074 | FALSE), /* pcrel_offset */ | |
1075 | ||
1076 | /* A 16 bit tprel reloc. */ | |
1077 | HOWTO (R_PPC_TPREL16, | |
252b5132 RH |
1078 | 0, /* rightshift */ |
1079 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1080 | 16, /* bitsize */ | |
b34976b6 | 1081 | FALSE, /* pc_relative */ |
252b5132 | 1082 | 0, /* bitpos */ |
7619e7c7 AM |
1083 | complain_overflow_signed, /* complain_on_overflow */ |
1084 | ppc_elf_unhandled_reloc, /* special_function */ | |
1085 | "R_PPC_TPREL16", /* name */ | |
b34976b6 | 1086 | FALSE, /* partial_inplace */ |
252b5132 RH |
1087 | 0, /* src_mask */ |
1088 | 0xffff, /* dst_mask */ | |
b34976b6 | 1089 | FALSE), /* pcrel_offset */ |
252b5132 | 1090 | |
7619e7c7 AM |
1091 | /* Like TPREL16, but no overflow. */ |
1092 | HOWTO (R_PPC_TPREL16_LO, | |
252b5132 RH |
1093 | 0, /* rightshift */ |
1094 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1095 | 16, /* bitsize */ | |
b34976b6 | 1096 | FALSE, /* pc_relative */ |
252b5132 | 1097 | 0, /* bitpos */ |
7619e7c7 AM |
1098 | complain_overflow_dont, /* complain_on_overflow */ |
1099 | ppc_elf_unhandled_reloc, /* special_function */ | |
1100 | "R_PPC_TPREL16_LO", /* name */ | |
b34976b6 | 1101 | FALSE, /* partial_inplace */ |
252b5132 RH |
1102 | 0, /* src_mask */ |
1103 | 0xffff, /* dst_mask */ | |
b34976b6 | 1104 | FALSE), /* pcrel_offset */ |
252b5132 | 1105 | |
7619e7c7 AM |
1106 | /* Like TPREL16_LO, but next higher group of 16 bits. */ |
1107 | HOWTO (R_PPC_TPREL16_HI, | |
1108 | 16, /* rightshift */ | |
1109 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1110 | 16, /* bitsize */ | |
1111 | FALSE, /* pc_relative */ | |
1112 | 0, /* bitpos */ | |
1113 | complain_overflow_dont, /* complain_on_overflow */ | |
1114 | ppc_elf_unhandled_reloc, /* special_function */ | |
1115 | "R_PPC_TPREL16_HI", /* name */ | |
1116 | FALSE, /* partial_inplace */ | |
1117 | 0, /* src_mask */ | |
1118 | 0xffff, /* dst_mask */ | |
1119 | FALSE), /* pcrel_offset */ | |
1120 | ||
1121 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
1122 | HOWTO (R_PPC_TPREL16_HA, | |
1123 | 16, /* rightshift */ | |
1124 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1125 | 16, /* bitsize */ | |
1126 | FALSE, /* pc_relative */ | |
1127 | 0, /* bitpos */ | |
1128 | complain_overflow_dont, /* complain_on_overflow */ | |
1129 | ppc_elf_unhandled_reloc, /* special_function */ | |
1130 | "R_PPC_TPREL16_HA", /* name */ | |
1131 | FALSE, /* partial_inplace */ | |
1132 | 0, /* src_mask */ | |
1133 | 0xffff, /* dst_mask */ | |
1134 | FALSE), /* pcrel_offset */ | |
1135 | ||
1136 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
1137 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
1138 | to the first entry. */ | |
1139 | HOWTO (R_PPC_GOT_TLSGD16, | |
252b5132 RH |
1140 | 0, /* rightshift */ |
1141 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1142 | 16, /* bitsize */ | |
b34976b6 | 1143 | FALSE, /* pc_relative */ |
252b5132 RH |
1144 | 0, /* bitpos */ |
1145 | complain_overflow_signed, /* complain_on_overflow */ | |
7619e7c7 AM |
1146 | ppc_elf_unhandled_reloc, /* special_function */ |
1147 | "R_PPC_GOT_TLSGD16", /* name */ | |
b34976b6 | 1148 | FALSE, /* partial_inplace */ |
252b5132 RH |
1149 | 0, /* src_mask */ |
1150 | 0xffff, /* dst_mask */ | |
b34976b6 | 1151 | FALSE), /* pcrel_offset */ |
252b5132 | 1152 | |
7619e7c7 AM |
1153 | /* Like GOT_TLSGD16, but no overflow. */ |
1154 | HOWTO (R_PPC_GOT_TLSGD16_LO, | |
252b5132 | 1155 | 0, /* rightshift */ |
7619e7c7 | 1156 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
252b5132 | 1157 | 16, /* bitsize */ |
b34976b6 | 1158 | FALSE, /* pc_relative */ |
252b5132 | 1159 | 0, /* bitpos */ |
7619e7c7 AM |
1160 | complain_overflow_dont, /* complain_on_overflow */ |
1161 | ppc_elf_unhandled_reloc, /* special_function */ | |
1162 | "R_PPC_GOT_TLSGD16_LO", /* name */ | |
b34976b6 | 1163 | FALSE, /* partial_inplace */ |
252b5132 RH |
1164 | 0, /* src_mask */ |
1165 | 0xffff, /* dst_mask */ | |
b34976b6 | 1166 | FALSE), /* pcrel_offset */ |
252b5132 | 1167 | |
7619e7c7 AM |
1168 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
1169 | HOWTO (R_PPC_GOT_TLSGD16_HI, | |
1170 | 16, /* rightshift */ | |
1171 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1172 | 16, /* bitsize */ | |
1173 | FALSE, /* pc_relative */ | |
1174 | 0, /* bitpos */ | |
1175 | complain_overflow_dont, /* complain_on_overflow */ | |
1176 | ppc_elf_unhandled_reloc, /* special_function */ | |
1177 | "R_PPC_GOT_TLSGD16_HI", /* name */ | |
1178 | FALSE, /* partial_inplace */ | |
1179 | 0, /* src_mask */ | |
1180 | 0xffff, /* dst_mask */ | |
1181 | FALSE), /* pcrel_offset */ | |
252b5132 | 1182 | |
7619e7c7 AM |
1183 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
1184 | HOWTO (R_PPC_GOT_TLSGD16_HA, | |
1185 | 16, /* rightshift */ | |
1186 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1187 | 16, /* bitsize */ | |
1188 | FALSE, /* pc_relative */ | |
1189 | 0, /* bitpos */ | |
1190 | complain_overflow_dont, /* complain_on_overflow */ | |
1191 | ppc_elf_unhandled_reloc, /* special_function */ | |
1192 | "R_PPC_GOT_TLSGD16_HA", /* name */ | |
1193 | FALSE, /* partial_inplace */ | |
1194 | 0, /* src_mask */ | |
1195 | 0xffff, /* dst_mask */ | |
1196 | FALSE), /* pcrel_offset */ | |
1197 | ||
1198 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
1199 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
1200 | first entry. */ | |
1201 | HOWTO (R_PPC_GOT_TLSLD16, | |
252b5132 RH |
1202 | 0, /* rightshift */ |
1203 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1204 | 16, /* bitsize */ | |
7619e7c7 | 1205 | FALSE, /* pc_relative */ |
252b5132 RH |
1206 | 0, /* bitpos */ |
1207 | complain_overflow_signed, /* complain_on_overflow */ | |
7619e7c7 AM |
1208 | ppc_elf_unhandled_reloc, /* special_function */ |
1209 | "R_PPC_GOT_TLSLD16", /* name */ | |
b34976b6 | 1210 | FALSE, /* partial_inplace */ |
252b5132 RH |
1211 | 0, /* src_mask */ |
1212 | 0xffff, /* dst_mask */ | |
b34976b6 | 1213 | FALSE), /* pcrel_offset */ |
252b5132 | 1214 | |
7619e7c7 AM |
1215 | /* Like GOT_TLSLD16, but no overflow. */ |
1216 | HOWTO (R_PPC_GOT_TLSLD16_LO, | |
252b5132 | 1217 | 0, /* rightshift */ |
7619e7c7 AM |
1218 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1219 | 16, /* bitsize */ | |
b34976b6 | 1220 | FALSE, /* pc_relative */ |
252b5132 RH |
1221 | 0, /* bitpos */ |
1222 | complain_overflow_dont, /* complain_on_overflow */ | |
7619e7c7 AM |
1223 | ppc_elf_unhandled_reloc, /* special_function */ |
1224 | "R_PPC_GOT_TLSLD16_LO", /* name */ | |
b34976b6 | 1225 | FALSE, /* partial_inplace */ |
252b5132 | 1226 | 0, /* src_mask */ |
7619e7c7 | 1227 | 0xffff, /* dst_mask */ |
b34976b6 | 1228 | FALSE), /* pcrel_offset */ |
252b5132 | 1229 | |
7619e7c7 AM |
1230 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
1231 | HOWTO (R_PPC_GOT_TLSLD16_HI, | |
1232 | 16, /* rightshift */ | |
1233 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1234 | 16, /* bitsize */ | |
b34976b6 | 1235 | FALSE, /* pc_relative */ |
252b5132 RH |
1236 | 0, /* bitpos */ |
1237 | complain_overflow_dont, /* complain_on_overflow */ | |
7619e7c7 AM |
1238 | ppc_elf_unhandled_reloc, /* special_function */ |
1239 | "R_PPC_GOT_TLSLD16_HI", /* name */ | |
b34976b6 | 1240 | FALSE, /* partial_inplace */ |
252b5132 | 1241 | 0, /* src_mask */ |
7619e7c7 | 1242 | 0xffff, /* dst_mask */ |
b34976b6 | 1243 | FALSE), /* pcrel_offset */ |
252b5132 | 1244 | |
7619e7c7 AM |
1245 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
1246 | HOWTO (R_PPC_GOT_TLSLD16_HA, | |
1247 | 16, /* rightshift */ | |
1248 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1249 | 16, /* bitsize */ | |
1250 | FALSE, /* pc_relative */ | |
1251 | 0, /* bitpos */ | |
1252 | complain_overflow_dont, /* complain_on_overflow */ | |
1253 | ppc_elf_unhandled_reloc, /* special_function */ | |
1254 | "R_PPC_GOT_TLSLD16_HA", /* name */ | |
1255 | FALSE, /* partial_inplace */ | |
1256 | 0, /* src_mask */ | |
1257 | 0xffff, /* dst_mask */ | |
1258 | FALSE), /* pcrel_offset */ | |
1259 | ||
1260 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes | |
1261 | the offset to the entry. */ | |
1262 | HOWTO (R_PPC_GOT_DTPREL16, | |
252b5132 RH |
1263 | 0, /* rightshift */ |
1264 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1265 | 16, /* bitsize */ | |
b34976b6 | 1266 | FALSE, /* pc_relative */ |
252b5132 RH |
1267 | 0, /* bitpos */ |
1268 | complain_overflow_signed, /* complain_on_overflow */ | |
7619e7c7 AM |
1269 | ppc_elf_unhandled_reloc, /* special_function */ |
1270 | "R_PPC_GOT_DTPREL16", /* name */ | |
b34976b6 | 1271 | FALSE, /* partial_inplace */ |
252b5132 RH |
1272 | 0, /* src_mask */ |
1273 | 0xffff, /* dst_mask */ | |
b34976b6 | 1274 | FALSE), /* pcrel_offset */ |
252b5132 | 1275 | |
7619e7c7 AM |
1276 | /* Like GOT_DTPREL16, but no overflow. */ |
1277 | HOWTO (R_PPC_GOT_DTPREL16_LO, | |
1278 | 0, /* rightshift */ | |
1279 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1280 | 16, /* bitsize */ | |
1281 | FALSE, /* pc_relative */ | |
1282 | 0, /* bitpos */ | |
1283 | complain_overflow_dont, /* complain_on_overflow */ | |
1284 | ppc_elf_unhandled_reloc, /* special_function */ | |
1285 | "R_PPC_GOT_DTPREL16_LO", /* name */ | |
1286 | FALSE, /* partial_inplace */ | |
1287 | 0, /* src_mask */ | |
1288 | 0xffff, /* dst_mask */ | |
1289 | FALSE), /* pcrel_offset */ | |
252b5132 | 1290 | |
7619e7c7 AM |
1291 | /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */ |
1292 | HOWTO (R_PPC_GOT_DTPREL16_HI, | |
1293 | 16, /* rightshift */ | |
1294 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1295 | 16, /* bitsize */ | |
1296 | FALSE, /* pc_relative */ | |
1297 | 0, /* bitpos */ | |
1298 | complain_overflow_dont, /* complain_on_overflow */ | |
1299 | ppc_elf_unhandled_reloc, /* special_function */ | |
1300 | "R_PPC_GOT_DTPREL16_HI", /* name */ | |
1301 | FALSE, /* partial_inplace */ | |
1302 | 0, /* src_mask */ | |
1303 | 0xffff, /* dst_mask */ | |
1304 | FALSE), /* pcrel_offset */ | |
252b5132 | 1305 | |
7619e7c7 AM |
1306 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
1307 | HOWTO (R_PPC_GOT_DTPREL16_HA, | |
1308 | 16, /* rightshift */ | |
1309 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1310 | 16, /* bitsize */ | |
1311 | FALSE, /* pc_relative */ | |
1312 | 0, /* bitpos */ | |
1313 | complain_overflow_dont, /* complain_on_overflow */ | |
1314 | ppc_elf_unhandled_reloc, /* special_function */ | |
1315 | "R_PPC_GOT_DTPREL16_HA", /* name */ | |
1316 | FALSE, /* partial_inplace */ | |
1317 | 0, /* src_mask */ | |
1318 | 0xffff, /* dst_mask */ | |
1319 | FALSE), /* pcrel_offset */ | |
c3668558 | 1320 | |
7619e7c7 AM |
1321 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the |
1322 | offset to the entry. */ | |
1323 | HOWTO (R_PPC_GOT_TPREL16, | |
1324 | 0, /* rightshift */ | |
1325 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1326 | 16, /* bitsize */ | |
1327 | FALSE, /* pc_relative */ | |
1328 | 0, /* bitpos */ | |
1329 | complain_overflow_signed, /* complain_on_overflow */ | |
1330 | ppc_elf_unhandled_reloc, /* special_function */ | |
1331 | "R_PPC_GOT_TPREL16", /* name */ | |
1332 | FALSE, /* partial_inplace */ | |
1333 | 0, /* src_mask */ | |
1334 | 0xffff, /* dst_mask */ | |
1335 | FALSE), /* pcrel_offset */ | |
1336 | ||
1337 | /* Like GOT_TPREL16, but no overflow. */ | |
1338 | HOWTO (R_PPC_GOT_TPREL16_LO, | |
1339 | 0, /* rightshift */ | |
1340 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1341 | 16, /* bitsize */ | |
1342 | FALSE, /* pc_relative */ | |
1343 | 0, /* bitpos */ | |
1344 | complain_overflow_dont, /* complain_on_overflow */ | |
1345 | ppc_elf_unhandled_reloc, /* special_function */ | |
1346 | "R_PPC_GOT_TPREL16_LO", /* name */ | |
1347 | FALSE, /* partial_inplace */ | |
1348 | 0, /* src_mask */ | |
1349 | 0xffff, /* dst_mask */ | |
1350 | FALSE), /* pcrel_offset */ | |
1351 | ||
1352 | /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */ | |
1353 | HOWTO (R_PPC_GOT_TPREL16_HI, | |
1354 | 16, /* rightshift */ | |
1355 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1356 | 16, /* bitsize */ | |
1357 | FALSE, /* pc_relative */ | |
1358 | 0, /* bitpos */ | |
1359 | complain_overflow_dont, /* complain_on_overflow */ | |
1360 | ppc_elf_unhandled_reloc, /* special_function */ | |
1361 | "R_PPC_GOT_TPREL16_HI", /* name */ | |
1362 | FALSE, /* partial_inplace */ | |
1363 | 0, /* src_mask */ | |
1364 | 0xffff, /* dst_mask */ | |
1365 | FALSE), /* pcrel_offset */ | |
1366 | ||
1367 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ | |
1368 | HOWTO (R_PPC_GOT_TPREL16_HA, | |
1369 | 16, /* rightshift */ | |
1370 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1371 | 16, /* bitsize */ | |
1372 | FALSE, /* pc_relative */ | |
1373 | 0, /* bitpos */ | |
1374 | complain_overflow_dont, /* complain_on_overflow */ | |
1375 | ppc_elf_unhandled_reloc, /* special_function */ | |
1376 | "R_PPC_GOT_TPREL16_HA", /* name */ | |
1377 | FALSE, /* partial_inplace */ | |
1378 | 0, /* src_mask */ | |
1379 | 0xffff, /* dst_mask */ | |
1380 | FALSE), /* pcrel_offset */ | |
1381 | ||
1382 | /* The remaining relocs are from the Embedded ELF ABI, and are not | |
1383 | in the SVR4 ELF ABI. */ | |
1384 | ||
1385 | /* 32 bit value resulting from the addend minus the symbol. */ | |
1386 | HOWTO (R_PPC_EMB_NADDR32, /* type */ | |
1387 | 0, /* rightshift */ | |
1388 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1389 | 32, /* bitsize */ | |
1390 | FALSE, /* pc_relative */ | |
1391 | 0, /* bitpos */ | |
1392 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1393 | bfd_elf_generic_reloc, /* special_function */ | |
1394 | "R_PPC_EMB_NADDR32", /* name */ | |
1395 | FALSE, /* partial_inplace */ | |
1396 | 0, /* src_mask */ | |
1397 | 0xffffffff, /* dst_mask */ | |
1398 | FALSE), /* pcrel_offset */ | |
1399 | ||
1400 | /* 16 bit value resulting from the addend minus the symbol. */ | |
1401 | HOWTO (R_PPC_EMB_NADDR16, /* type */ | |
1402 | 0, /* rightshift */ | |
1403 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1404 | 16, /* bitsize */ | |
1405 | FALSE, /* pc_relative */ | |
1406 | 0, /* bitpos */ | |
1407 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1408 | bfd_elf_generic_reloc, /* special_function */ | |
1409 | "R_PPC_EMB_NADDR16", /* name */ | |
1410 | FALSE, /* partial_inplace */ | |
1411 | 0, /* src_mask */ | |
1412 | 0xffff, /* dst_mask */ | |
1413 | FALSE), /* pcrel_offset */ | |
1414 | ||
1415 | /* 16 bit value resulting from the addend minus the symbol. */ | |
1416 | HOWTO (R_PPC_EMB_NADDR16_LO, /* type */ | |
1417 | 0, /* rightshift */ | |
1418 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1419 | 16, /* bitsize */ | |
1420 | FALSE, /* pc_relative */ | |
1421 | 0, /* bitpos */ | |
1422 | complain_overflow_dont,/* complain_on_overflow */ | |
1423 | bfd_elf_generic_reloc, /* special_function */ | |
1424 | "R_PPC_EMB_ADDR16_LO", /* name */ | |
1425 | FALSE, /* partial_inplace */ | |
1426 | 0, /* src_mask */ | |
1427 | 0xffff, /* dst_mask */ | |
1428 | FALSE), /* pcrel_offset */ | |
1429 | ||
1430 | /* The high order 16 bits of the addend minus the symbol. */ | |
1431 | HOWTO (R_PPC_EMB_NADDR16_HI, /* type */ | |
1432 | 16, /* rightshift */ | |
1433 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1434 | 16, /* bitsize */ | |
1435 | FALSE, /* pc_relative */ | |
1436 | 0, /* bitpos */ | |
1437 | complain_overflow_dont, /* complain_on_overflow */ | |
1438 | bfd_elf_generic_reloc, /* special_function */ | |
1439 | "R_PPC_EMB_NADDR16_HI", /* name */ | |
1440 | FALSE, /* partial_inplace */ | |
1441 | 0, /* src_mask */ | |
1442 | 0xffff, /* dst_mask */ | |
1443 | FALSE), /* pcrel_offset */ | |
1444 | ||
1445 | /* The high order 16 bits of the result of the addend minus the address, | |
1446 | plus 1 if the contents of the low 16 bits, treated as a signed number, | |
1447 | is negative. */ | |
1448 | HOWTO (R_PPC_EMB_NADDR16_HA, /* type */ | |
1449 | 16, /* rightshift */ | |
1450 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1451 | 16, /* bitsize */ | |
1452 | FALSE, /* pc_relative */ | |
1453 | 0, /* bitpos */ | |
1454 | complain_overflow_dont, /* complain_on_overflow */ | |
1455 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
1456 | "R_PPC_EMB_NADDR16_HA", /* name */ | |
1457 | FALSE, /* partial_inplace */ | |
1458 | 0, /* src_mask */ | |
1459 | 0xffff, /* dst_mask */ | |
1460 | FALSE), /* pcrel_offset */ | |
1461 | ||
1462 | /* 16 bit value resulting from allocating a 4 byte word to hold an | |
1463 | address in the .sdata section, and returning the offset from | |
1464 | _SDA_BASE_ for that relocation. */ | |
1465 | HOWTO (R_PPC_EMB_SDAI16, /* type */ | |
1466 | 0, /* rightshift */ | |
1467 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1468 | 16, /* bitsize */ | |
1469 | FALSE, /* pc_relative */ | |
1470 | 0, /* bitpos */ | |
1471 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1472 | bfd_elf_generic_reloc, /* special_function */ | |
1473 | "R_PPC_EMB_SDAI16", /* name */ | |
1474 | FALSE, /* partial_inplace */ | |
1475 | 0, /* src_mask */ | |
1476 | 0xffff, /* dst_mask */ | |
1477 | FALSE), /* pcrel_offset */ | |
1478 | ||
1479 | /* 16 bit value resulting from allocating a 4 byte word to hold an | |
1480 | address in the .sdata2 section, and returning the offset from | |
1481 | _SDA2_BASE_ for that relocation. */ | |
1482 | HOWTO (R_PPC_EMB_SDA2I16, /* type */ | |
1483 | 0, /* rightshift */ | |
1484 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1485 | 16, /* bitsize */ | |
1486 | FALSE, /* pc_relative */ | |
1487 | 0, /* bitpos */ | |
1488 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1489 | bfd_elf_generic_reloc, /* special_function */ | |
1490 | "R_PPC_EMB_SDA2I16", /* name */ | |
1491 | FALSE, /* partial_inplace */ | |
1492 | 0, /* src_mask */ | |
1493 | 0xffff, /* dst_mask */ | |
1494 | FALSE), /* pcrel_offset */ | |
1495 | ||
1496 | /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with | |
1497 | small data items. */ | |
1498 | HOWTO (R_PPC_EMB_SDA2REL, /* type */ | |
1499 | 0, /* rightshift */ | |
1500 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1501 | 16, /* bitsize */ | |
1502 | FALSE, /* pc_relative */ | |
1503 | 0, /* bitpos */ | |
1504 | complain_overflow_signed, /* complain_on_overflow */ | |
1505 | bfd_elf_generic_reloc, /* special_function */ | |
1506 | "R_PPC_EMB_SDA2REL", /* name */ | |
1507 | FALSE, /* partial_inplace */ | |
1508 | 0, /* src_mask */ | |
1509 | 0xffff, /* dst_mask */ | |
1510 | FALSE), /* pcrel_offset */ | |
1511 | ||
1512 | /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit | |
1513 | signed offset from the appropriate base, and filling in the register | |
1514 | field with the appropriate register (0, 2, or 13). */ | |
1515 | HOWTO (R_PPC_EMB_SDA21, /* type */ | |
1516 | 0, /* rightshift */ | |
1517 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1518 | 16, /* bitsize */ | |
1519 | FALSE, /* pc_relative */ | |
1520 | 0, /* bitpos */ | |
1521 | complain_overflow_signed, /* complain_on_overflow */ | |
1522 | bfd_elf_generic_reloc, /* special_function */ | |
1523 | "R_PPC_EMB_SDA21", /* name */ | |
1524 | FALSE, /* partial_inplace */ | |
1525 | 0, /* src_mask */ | |
1526 | 0xffff, /* dst_mask */ | |
1527 | FALSE), /* pcrel_offset */ | |
1528 | ||
1529 | /* Relocation not handled: R_PPC_EMB_MRKREF */ | |
1530 | /* Relocation not handled: R_PPC_EMB_RELSEC16 */ | |
1531 | /* Relocation not handled: R_PPC_EMB_RELST_LO */ | |
1532 | /* Relocation not handled: R_PPC_EMB_RELST_HI */ | |
1533 | /* Relocation not handled: R_PPC_EMB_RELST_HA */ | |
1534 | /* Relocation not handled: R_PPC_EMB_BIT_FLD */ | |
1535 | ||
1536 | /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling | |
1537 | in the 16 bit signed offset from the appropriate base, and filling in the | |
1538 | register field with the appropriate register (0, 2, or 13). */ | |
1539 | HOWTO (R_PPC_EMB_RELSDA, /* type */ | |
1540 | 0, /* rightshift */ | |
1541 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1542 | 16, /* bitsize */ | |
1543 | TRUE, /* pc_relative */ | |
1544 | 0, /* bitpos */ | |
1545 | complain_overflow_signed, /* complain_on_overflow */ | |
1546 | bfd_elf_generic_reloc, /* special_function */ | |
1547 | "R_PPC_EMB_RELSDA", /* name */ | |
1548 | FALSE, /* partial_inplace */ | |
1549 | 0, /* src_mask */ | |
1550 | 0xffff, /* dst_mask */ | |
1551 | FALSE), /* pcrel_offset */ | |
1552 | ||
1553 | /* GNU extension to record C++ vtable hierarchy. */ | |
1554 | HOWTO (R_PPC_GNU_VTINHERIT, /* type */ | |
1555 | 0, /* rightshift */ | |
1556 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1557 | 0, /* bitsize */ | |
1558 | FALSE, /* pc_relative */ | |
1559 | 0, /* bitpos */ | |
1560 | complain_overflow_dont, /* complain_on_overflow */ | |
1561 | NULL, /* special_function */ | |
1562 | "R_PPC_GNU_VTINHERIT", /* name */ | |
1563 | FALSE, /* partial_inplace */ | |
1564 | 0, /* src_mask */ | |
1565 | 0, /* dst_mask */ | |
1566 | FALSE), /* pcrel_offset */ | |
1567 | ||
1568 | /* GNU extension to record C++ vtable member usage. */ | |
1569 | HOWTO (R_PPC_GNU_VTENTRY, /* type */ | |
1570 | 0, /* rightshift */ | |
1571 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1572 | 0, /* bitsize */ | |
1573 | FALSE, /* pc_relative */ | |
1574 | 0, /* bitpos */ | |
1575 | complain_overflow_dont, /* complain_on_overflow */ | |
1576 | NULL, /* special_function */ | |
1577 | "R_PPC_GNU_VTENTRY", /* name */ | |
1578 | FALSE, /* partial_inplace */ | |
1579 | 0, /* src_mask */ | |
1580 | 0, /* dst_mask */ | |
1581 | FALSE), /* pcrel_offset */ | |
1582 | ||
1583 | /* Phony reloc to handle AIX style TOC entries. */ | |
1584 | HOWTO (R_PPC_TOC16, /* type */ | |
1585 | 0, /* rightshift */ | |
1586 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1587 | 16, /* bitsize */ | |
1588 | FALSE, /* pc_relative */ | |
1589 | 0, /* bitpos */ | |
1590 | complain_overflow_signed, /* complain_on_overflow */ | |
1591 | bfd_elf_generic_reloc, /* special_function */ | |
1592 | "R_PPC_TOC16", /* name */ | |
1593 | FALSE, /* partial_inplace */ | |
1594 | 0, /* src_mask */ | |
1595 | 0xffff, /* dst_mask */ | |
1596 | FALSE), /* pcrel_offset */ | |
1597 | }; | |
1598 | \f | |
1599 | /* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */ | |
1600 | ||
1601 | static void | |
1602 | ppc_elf_howto_init () | |
1603 | { | |
1604 | unsigned int i, type; | |
1605 | ||
1606 | for (i = 0; i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]); i++) | |
1607 | { | |
1608 | type = ppc_elf_howto_raw[i].type; | |
1609 | BFD_ASSERT (type < sizeof (ppc_elf_howto_table) / sizeof (ppc_elf_howto_table[0])); | |
1610 | ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i]; | |
1611 | } | |
1612 | } | |
1613 | \f | |
1614 | /* This function handles relaxing for the PPC with option --mpc860c0[=<n>]. | |
1615 | ||
1616 | The MPC860, revision C0 or earlier contains a bug in the die. | |
1617 | If all of the following conditions are true, the next instruction | |
1618 | to be executed *may* be treated as a no-op. | |
1619 | 1/ A forward branch is executed. | |
1620 | 2/ The branch is predicted as not taken. | |
1621 | 3/ The branch is taken. | |
1622 | 4/ The branch is located in the last 5 words of a page. | |
1623 | (The EOP limit is 5 by default but may be specified as any value from 1-10.) | |
1624 | ||
1625 | Our software solution is to detect these problematic branches in a | |
1626 | linker pass and modify them as follows: | |
1627 | 1/ Unconditional branches - Since these are always predicted taken, | |
252b5132 RH |
1628 | there is no problem and no action is required. |
1629 | 2/ Conditional backward branches - No problem, no action required. | |
1630 | 3/ Conditional forward branches - Ensure that the "inverse prediction | |
1631 | bit" is set (ensure it is predicted taken). | |
1632 | 4/ Conditional register branches - Ensure that the "y bit" is set | |
ae9a127f | 1633 | (ensure it is predicted taken). */ |
252b5132 RH |
1634 | |
1635 | /* Sort sections by address. */ | |
1636 | ||
1637 | static int | |
1638 | ppc_elf_sort_rela (arg1, arg2) | |
a7b97311 AM |
1639 | const PTR arg1; |
1640 | const PTR arg2; | |
252b5132 RH |
1641 | { |
1642 | const Elf_Internal_Rela **rela1 = (const Elf_Internal_Rela**) arg1; | |
1643 | const Elf_Internal_Rela **rela2 = (const Elf_Internal_Rela**) arg2; | |
1644 | ||
c3668558 | 1645 | /* Sort by offset. */ |
252b5132 RH |
1646 | return ((*rela1)->r_offset - (*rela2)->r_offset); |
1647 | } | |
1648 | ||
b34976b6 | 1649 | static bfd_boolean |
252b5132 | 1650 | ppc_elf_relax_section (abfd, isec, link_info, again) |
8da6118f KH |
1651 | bfd *abfd; |
1652 | asection *isec; | |
1653 | struct bfd_link_info *link_info; | |
b34976b6 | 1654 | bfd_boolean *again; |
252b5132 RH |
1655 | { |
1656 | #define PAGESIZE 0x1000 | |
1657 | ||
1658 | bfd_byte *contents = NULL; | |
1659 | bfd_byte *free_contents = NULL; | |
1660 | Elf_Internal_Rela *internal_relocs = NULL; | |
1661 | Elf_Internal_Rela *free_relocs = NULL; | |
1662 | Elf_Internal_Rela **rela_comb = NULL; | |
1663 | int comb_curr, comb_count; | |
1664 | ||
c3668558 | 1665 | /* We never have to do this more than once per input section. */ |
b34976b6 | 1666 | *again = FALSE; |
252b5132 RH |
1667 | |
1668 | /* If needed, initialize this section's cooked size. */ | |
1669 | if (isec->_cooked_size == 0) | |
1670 | isec->_cooked_size = isec->_raw_size; | |
1671 | ||
1672 | /* We're only interested in text sections which overlap the | |
8da6118f | 1673 | troublesome area at the end of a page. */ |
252b5132 RH |
1674 | if (link_info->mpc860c0 && (isec->flags & SEC_CODE) && isec->_cooked_size) |
1675 | { | |
1676 | bfd_vma dot, end_page, end_section; | |
b34976b6 | 1677 | bfd_boolean section_modified; |
252b5132 | 1678 | |
c3668558 | 1679 | /* Get the section contents. */ |
252b5132 RH |
1680 | /* Get cached copy if it exists. */ |
1681 | if (elf_section_data (isec)->this_hdr.contents != NULL) | |
1682 | contents = elf_section_data (isec)->this_hdr.contents; | |
1683 | else | |
1684 | { | |
1685 | /* Go get them off disk. */ | |
1686 | contents = (bfd_byte *) bfd_malloc (isec->_raw_size); | |
1687 | if (contents == NULL) | |
8da6118f | 1688 | goto error_return; |
252b5132 RH |
1689 | free_contents = contents; |
1690 | ||
1691 | if (! bfd_get_section_contents (abfd, isec, contents, | |
1692 | (file_ptr) 0, isec->_raw_size)) | |
8da6118f | 1693 | goto error_return; |
252b5132 RH |
1694 | } |
1695 | ||
1696 | comb_curr = 0; | |
1697 | comb_count = 0; | |
1698 | if (isec->reloc_count) | |
8da6118f | 1699 | { |
252b5132 | 1700 | unsigned n; |
dc810e39 | 1701 | bfd_size_type amt; |
252b5132 RH |
1702 | |
1703 | /* Get a copy of the native relocations. */ | |
1704 | internal_relocs = _bfd_elf32_link_read_relocs ( | |
c3668558 | 1705 | abfd, isec, (PTR) NULL, (Elf_Internal_Rela *) NULL, |
252b5132 RH |
1706 | link_info->keep_memory); |
1707 | if (internal_relocs == NULL) | |
1708 | goto error_return; | |
1709 | if (! link_info->keep_memory) | |
1710 | free_relocs = internal_relocs; | |
c3668558 KH |
1711 | |
1712 | /* Setup a faster access method for the reloc info we need. */ | |
dc810e39 AM |
1713 | amt = isec->reloc_count; |
1714 | amt *= sizeof (Elf_Internal_Rela*); | |
1715 | rela_comb = (Elf_Internal_Rela**) bfd_malloc (amt); | |
252b5132 RH |
1716 | if (rela_comb == NULL) |
1717 | goto error_return; | |
8da6118f | 1718 | for (n = 0; n < isec->reloc_count; ++n) |
252b5132 RH |
1719 | { |
1720 | long r_type; | |
c3668558 | 1721 | |
252b5132 | 1722 | r_type = ELF32_R_TYPE (internal_relocs[n].r_info); |
8da6118f | 1723 | if (r_type < 0 || r_type >= (int) R_PPC_max) |
252b5132 | 1724 | goto error_return; |
c3668558 | 1725 | |
252b5132 RH |
1726 | /* Prologue constants are sometimes present in the ".text" |
1727 | sections and they can be identified by their associated relocation. | |
1728 | We don't want to process those words and some others which | |
1729 | can also be identified by their relocations. However, not all | |
1730 | conditional branches will have a relocation so we will | |
1731 | only ignore words that 1) have a reloc, and 2) the reloc | |
1732 | is not applicable to a conditional branch. | |
c3668558 | 1733 | The array rela_comb is built here for use in the EOP scan loop. */ |
252b5132 RH |
1734 | switch (r_type) |
1735 | { | |
ae9a127f NC |
1736 | case R_PPC_ADDR14_BRNTAKEN: /* Absolute, predicted not taken */ |
1737 | case R_PPC_REL14: /* Relative cond. br. */ | |
1738 | case R_PPC_REL14_BRNTAKEN: /* Rel. cond. br., predicted not taken */ | |
c3668558 | 1739 | /* We should check the instruction. */ |
252b5132 RH |
1740 | break; |
1741 | default: | |
c3668558 | 1742 | /* The word is not a conditional branch - ignore it. */ |
252b5132 RH |
1743 | rela_comb[comb_count++] = &internal_relocs[n]; |
1744 | break; | |
1745 | } | |
1746 | } | |
1747 | if (comb_count > 1) | |
8da6118f KH |
1748 | qsort (rela_comb, (size_t) comb_count, sizeof (int), ppc_elf_sort_rela); |
1749 | } | |
252b5132 | 1750 | |
c3668558 | 1751 | /* Enumerate each EOP region that overlaps this section. */ |
252b5132 RH |
1752 | end_section = isec->vma + isec->_cooked_size; |
1753 | dot = end_page = (isec->vma | (PAGESIZE - 1)) + 1; | |
1754 | dot -= link_info->mpc860c0; | |
b34976b6 | 1755 | section_modified = FALSE; |
252b5132 | 1756 | if (dot < isec->vma) /* Increment the start position if this section */ |
c3668558 | 1757 | dot = isec->vma; /* begins in the middle of its first EOP region. */ |
252b5132 RH |
1758 | for (; |
1759 | dot < end_section; | |
1760 | dot += PAGESIZE, end_page += PAGESIZE) | |
1761 | { | |
1762 | ||
c3668558 | 1763 | /* Check each word in this EOP region. */ |
252b5132 RH |
1764 | for (; dot < end_page; dot += 4) |
1765 | { | |
1766 | bfd_vma isec_offset; | |
1767 | unsigned long insn; | |
b34976b6 | 1768 | bfd_boolean skip, modified; |
252b5132 RH |
1769 | |
1770 | /* Don't process this word if there is a relocation for it and | |
ae9a127f | 1771 | the relocation indicates the word is not a conditional branch. */ |
b34976b6 | 1772 | skip = FALSE; |
252b5132 RH |
1773 | isec_offset = dot - isec->vma; |
1774 | for (; comb_curr<comb_count; ++comb_curr) | |
1775 | { | |
1776 | bfd_vma r_offset; | |
1777 | ||
1778 | r_offset = rela_comb[comb_curr]->r_offset; | |
1779 | if (r_offset >= isec_offset) | |
1780 | { | |
b34976b6 | 1781 | if (r_offset == isec_offset) skip = TRUE; |
252b5132 RH |
1782 | break; |
1783 | } | |
1784 | } | |
1785 | if (skip) continue; | |
1786 | ||
c3668558 | 1787 | /* Check the current word for a problematic conditional branch. */ |
252b5132 RH |
1788 | #define BO0(insn) ((insn) & 0x02000000) |
1789 | #define BO2(insn) ((insn) & 0x00800000) | |
1790 | #define BO4(insn) ((insn) & 0x00200000) | |
1791 | insn = (unsigned long) bfd_get_32 (abfd, contents + isec_offset); | |
b34976b6 | 1792 | modified = FALSE; |
252b5132 RH |
1793 | if ((insn & 0xFc000000) == 0x40000000) |
1794 | { | |
1795 | /* Instruction is BCx */ | |
1796 | if ((!BO0(insn) || !BO2(insn)) && !BO4(insn)) | |
1797 | { | |
1798 | bfd_vma target; | |
1799 | /* This branch is predicted as "normal". | |
ae9a127f | 1800 | If this is a forward branch, it is problematic. */ |
252b5132 RH |
1801 | |
1802 | target = insn & 0x0000Fffc; /*extract*/ | |
1803 | target = (target ^ 0x8000) - 0x8000; /*sign extend*/ | |
1804 | if ((insn & 0x00000002) == 0) | |
1805 | target += dot; /*convert to abs*/ | |
1806 | if (target > dot) | |
1807 | { | |
ae9a127f | 1808 | insn |= 0x00200000; /* Set the prediction bit. */ |
b34976b6 | 1809 | modified = TRUE; |
252b5132 RH |
1810 | } |
1811 | } | |
1812 | } | |
1813 | else if ((insn & 0xFc00Fffe) == 0x4c000420) | |
1814 | { | |
ae9a127f | 1815 | /* Instruction is BCCTRx. */ |
252b5132 RH |
1816 | if ((!BO0(insn) || !BO2(insn)) && !BO4(insn)) |
1817 | { | |
1818 | /* This branch is predicted as not-taken. | |
ae9a127f NC |
1819 | If this is a forward branch, it is problematic. |
1820 | Since we can't tell statically if it will branch forward, | |
1821 | always set the prediction bit. */ | |
1822 | insn |= 0x00200000; /* Set the prediction bit. */ | |
b34976b6 | 1823 | modified = TRUE; |
252b5132 RH |
1824 | } |
1825 | } | |
1826 | else if ((insn & 0xFc00Fffe) == 0x4c000020) | |
1827 | { | |
1828 | /* Instruction is BCLRx */ | |
1829 | if ((!BO0(insn) || !BO2(insn)) && !BO4(insn)) | |
1830 | { | |
1831 | /* This branch is predicted as not-taken. | |
ae9a127f NC |
1832 | If this is a forward branch, it is problematic. |
1833 | Since we can't tell statically if it will branch forward, | |
1834 | always set the prediction bit. */ | |
1835 | insn |= 0x00200000; /* Set the prediction bit. */ | |
b34976b6 | 1836 | modified = TRUE; |
252b5132 RH |
1837 | } |
1838 | } | |
1839 | #undef BO0 | |
1840 | #undef BO2 | |
1841 | #undef BO4 | |
1842 | if (modified) | |
1843 | { | |
dc810e39 | 1844 | bfd_put_32 (abfd, (bfd_vma) insn, contents + isec_offset); |
b34976b6 | 1845 | section_modified = TRUE; |
252b5132 RH |
1846 | } |
1847 | } | |
1848 | } | |
1849 | if (section_modified) | |
1850 | { | |
1851 | elf_section_data (isec)->this_hdr.contents = contents; | |
1852 | free_contents = NULL; | |
1853 | } | |
1854 | } | |
1855 | ||
1856 | if (rela_comb != NULL) | |
1857 | { | |
1858 | free (rela_comb); | |
1859 | rela_comb = NULL; | |
1860 | } | |
1861 | ||
1862 | if (free_relocs != NULL) | |
1863 | { | |
1864 | free (free_relocs); | |
1865 | free_relocs = NULL; | |
1866 | } | |
1867 | ||
1868 | if (free_contents != NULL) | |
1869 | { | |
1870 | if (! link_info->keep_memory) | |
1871 | free (free_contents); | |
1872 | else | |
1873 | { | |
1874 | /* Cache the section contents for elf_link_input_bfd. */ | |
1875 | elf_section_data (isec)->this_hdr.contents = contents; | |
1876 | } | |
1877 | free_contents = NULL; | |
1878 | } | |
1879 | ||
b34976b6 | 1880 | return TRUE; |
252b5132 RH |
1881 | |
1882 | error_return: | |
1883 | if (rela_comb != NULL) | |
1884 | free (rela_comb); | |
1885 | if (free_relocs != NULL) | |
1886 | free (free_relocs); | |
1887 | if (free_contents != NULL) | |
1888 | free (free_contents); | |
b34976b6 | 1889 | return FALSE; |
252b5132 | 1890 | } |
252b5132 RH |
1891 | \f |
1892 | static reloc_howto_type * | |
1893 | ppc_elf_reloc_type_lookup (abfd, code) | |
5f771d47 | 1894 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1895 | bfd_reloc_code_real_type code; |
1896 | { | |
7619e7c7 | 1897 | enum elf_ppc_reloc_type r; |
252b5132 RH |
1898 | |
1899 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) | |
8da6118f | 1900 | /* Initialize howto table if needed. */ |
252b5132 RH |
1901 | ppc_elf_howto_init (); |
1902 | ||
8da6118f | 1903 | switch ((int) code) |
252b5132 RH |
1904 | { |
1905 | default: | |
8da6118f | 1906 | return (reloc_howto_type *) NULL; |
252b5132 | 1907 | |
7619e7c7 AM |
1908 | case BFD_RELOC_NONE: r = R_PPC_NONE; break; |
1909 | case BFD_RELOC_32: r = R_PPC_ADDR32; break; | |
1910 | case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break; | |
1911 | case BFD_RELOC_16: r = R_PPC_ADDR16; break; | |
1912 | case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break; | |
1913 | case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break; | |
1914 | case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break; | |
1915 | case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break; | |
1916 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break; | |
1917 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break; | |
1918 | case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break; | |
1919 | case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break; | |
1920 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break; | |
1921 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break; | |
1922 | case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break; | |
1923 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break; | |
1924 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break; | |
1925 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break; | |
1926 | case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break; | |
1927 | case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break; | |
1928 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break; | |
1929 | case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break; | |
1930 | case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break; | |
1931 | case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break; | |
1932 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break; | |
1933 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break; | |
1934 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break; | |
1935 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break; | |
1936 | case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break; | |
1937 | case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break; | |
1938 | case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break; | |
1939 | case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break; | |
1940 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break; | |
1941 | case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break; | |
1942 | case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break; | |
1943 | case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break; | |
1944 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break; | |
1945 | case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break; | |
1946 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break; | |
1947 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break; | |
1948 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break; | |
1949 | case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break; | |
1950 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break; | |
1951 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break; | |
1952 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break; | |
1953 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break; | |
1954 | case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break; | |
1955 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break; | |
1956 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break; | |
1957 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break; | |
1958 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break; | |
1959 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break; | |
1960 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break; | |
1961 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break; | |
1962 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break; | |
1963 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break; | |
1964 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break; | |
1965 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break; | |
1966 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break; | |
1967 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break; | |
1968 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break; | |
1969 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break; | |
1970 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break; | |
1971 | case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break; | |
1972 | case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break; | |
1973 | case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break; | |
1974 | case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break; | |
1975 | case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break; | |
1976 | case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break; | |
1977 | case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break; | |
1978 | case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break; | |
1979 | case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break; | |
1980 | case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break; | |
1981 | case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break; | |
1982 | case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break; | |
1983 | case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break; | |
1984 | case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break; | |
1985 | case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break; | |
1986 | case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break; | |
1987 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break; | |
1988 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break; | |
252b5132 RH |
1989 | } |
1990 | ||
7619e7c7 | 1991 | return ppc_elf_howto_table[(int) r]; |
252b5132 RH |
1992 | }; |
1993 | ||
1994 | /* Set the howto pointer for a PowerPC ELF reloc. */ | |
1995 | ||
1996 | static void | |
1997 | ppc_elf_info_to_howto (abfd, cache_ptr, dst) | |
5f771d47 | 1998 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 | 1999 | arelent *cache_ptr; |
947216bf | 2000 | Elf_Internal_Rela *dst; |
252b5132 | 2001 | { |
8da6118f KH |
2002 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) |
2003 | /* Initialize howto table if needed. */ | |
252b5132 RH |
2004 | ppc_elf_howto_init (); |
2005 | ||
2006 | BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max); | |
2007 | cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)]; | |
2008 | } | |
2009 | ||
2010 | /* Handle the R_PPC_ADDR16_HA reloc. */ | |
2011 | ||
2012 | static bfd_reloc_status_type | |
2013 | ppc_elf_addr16_ha_reloc (abfd, reloc_entry, symbol, data, input_section, | |
2014 | output_bfd, error_message) | |
5f771d47 | 2015 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
2016 | arelent *reloc_entry; |
2017 | asymbol *symbol; | |
5f771d47 | 2018 | PTR data ATTRIBUTE_UNUSED; |
252b5132 RH |
2019 | asection *input_section; |
2020 | bfd *output_bfd; | |
5f771d47 | 2021 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
2022 | { |
2023 | bfd_vma relocation; | |
2024 | ||
2025 | if (output_bfd != NULL) | |
2026 | { | |
2027 | reloc_entry->address += input_section->output_offset; | |
2028 | return bfd_reloc_ok; | |
2029 | } | |
2030 | ||
2031 | if (reloc_entry->address > input_section->_cooked_size) | |
2032 | return bfd_reloc_outofrange; | |
2033 | ||
2034 | if (bfd_is_com_section (symbol->section)) | |
2035 | relocation = 0; | |
2036 | else | |
2037 | relocation = symbol->value; | |
2038 | ||
2039 | relocation += symbol->section->output_section->vma; | |
2040 | relocation += symbol->section->output_offset; | |
2041 | relocation += reloc_entry->addend; | |
2042 | ||
2043 | reloc_entry->addend += (relocation & 0x8000) << 1; | |
2044 | ||
2045 | return bfd_reloc_continue; | |
2046 | } | |
2047 | ||
7619e7c7 AM |
2048 | static bfd_reloc_status_type |
2049 | ppc_elf_unhandled_reloc (abfd, reloc_entry, symbol, data, | |
2050 | input_section, output_bfd, error_message) | |
2051 | bfd *abfd; | |
2052 | arelent *reloc_entry; | |
2053 | asymbol *symbol; | |
2054 | PTR data; | |
2055 | asection *input_section; | |
2056 | bfd *output_bfd; | |
2057 | char **error_message; | |
2058 | { | |
2059 | /* If this is a relocatable link (output_bfd test tells us), just | |
2060 | call the generic function. Any adjustment will be done at final | |
2061 | link time. */ | |
2062 | if (output_bfd != NULL) | |
2063 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
2064 | input_section, output_bfd, error_message); | |
2065 | ||
2066 | if (error_message != NULL) | |
2067 | { | |
2068 | static char buf[60]; | |
2069 | sprintf (buf, "generic linker can't handle %s", | |
2070 | reloc_entry->howto->name); | |
2071 | *error_message = buf; | |
2072 | } | |
2073 | return bfd_reloc_dangerous; | |
2074 | } | |
2075 | ||
feee612b AM |
2076 | /* Fix bad default arch selected for a 32 bit input bfd when the |
2077 | default is 64 bit. */ | |
2078 | ||
b34976b6 | 2079 | static bfd_boolean |
feee612b AM |
2080 | ppc_elf_object_p (abfd) |
2081 | bfd *abfd; | |
2082 | { | |
2083 | if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64) | |
2084 | { | |
2085 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
2086 | ||
2087 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32) | |
2088 | { | |
2089 | /* Relies on arch after 64 bit default being 32 bit default. */ | |
2090 | abfd->arch_info = abfd->arch_info->next; | |
2091 | BFD_ASSERT (abfd->arch_info->bits_per_word == 32); | |
2092 | } | |
2093 | } | |
b34976b6 | 2094 | return TRUE; |
feee612b AM |
2095 | } |
2096 | ||
c3668558 | 2097 | /* Function to set whether a module needs the -mrelocatable bit set. */ |
252b5132 | 2098 | |
b34976b6 | 2099 | static bfd_boolean |
252b5132 RH |
2100 | ppc_elf_set_private_flags (abfd, flags) |
2101 | bfd *abfd; | |
2102 | flagword flags; | |
2103 | { | |
2104 | BFD_ASSERT (!elf_flags_init (abfd) | |
2105 | || elf_elfheader (abfd)->e_flags == flags); | |
2106 | ||
2107 | elf_elfheader (abfd)->e_flags = flags; | |
b34976b6 AM |
2108 | elf_flags_init (abfd) = TRUE; |
2109 | return TRUE; | |
252b5132 RH |
2110 | } |
2111 | ||
252b5132 | 2112 | /* Merge backend specific data from an object file to the output |
ae9a127f NC |
2113 | object file when linking. */ |
2114 | ||
b34976b6 | 2115 | static bfd_boolean |
252b5132 RH |
2116 | ppc_elf_merge_private_bfd_data (ibfd, obfd) |
2117 | bfd *ibfd; | |
2118 | bfd *obfd; | |
2119 | { | |
2120 | flagword old_flags; | |
2121 | flagword new_flags; | |
b34976b6 | 2122 | bfd_boolean error; |
252b5132 | 2123 | |
ae9a127f | 2124 | /* Check if we have the same endianess. */ |
82e51918 | 2125 | if (! _bfd_generic_verify_endian_match (ibfd, obfd)) |
b34976b6 | 2126 | return FALSE; |
252b5132 RH |
2127 | |
2128 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
2129 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 2130 | return TRUE; |
252b5132 RH |
2131 | |
2132 | new_flags = elf_elfheader (ibfd)->e_flags; | |
2133 | old_flags = elf_elfheader (obfd)->e_flags; | |
ae9a127f | 2134 | if (!elf_flags_init (obfd)) /* First call, no flags set. */ |
252b5132 | 2135 | { |
b34976b6 | 2136 | elf_flags_init (obfd) = TRUE; |
252b5132 RH |
2137 | elf_elfheader (obfd)->e_flags = new_flags; |
2138 | } | |
2139 | ||
ae9a127f | 2140 | else if (new_flags == old_flags) /* Compatible flags are ok. */ |
252b5132 RH |
2141 | ; |
2142 | ||
ae9a127f | 2143 | else /* Incompatible flags. */ |
252b5132 RH |
2144 | { |
2145 | /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib to be linked | |
2146 | with either. */ | |
b34976b6 | 2147 | error = FALSE; |
252b5132 RH |
2148 | if ((new_flags & EF_PPC_RELOCATABLE) != 0 |
2149 | && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0) | |
2150 | { | |
b34976b6 | 2151 | error = TRUE; |
252b5132 RH |
2152 | (*_bfd_error_handler) |
2153 | (_("%s: compiled with -mrelocatable and linked with modules compiled normally"), | |
8f615d07 | 2154 | bfd_archive_filename (ibfd)); |
252b5132 RH |
2155 | } |
2156 | else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0 | |
2157 | && (old_flags & EF_PPC_RELOCATABLE) != 0) | |
2158 | { | |
b34976b6 | 2159 | error = TRUE; |
252b5132 RH |
2160 | (*_bfd_error_handler) |
2161 | (_("%s: compiled normally and linked with modules compiled with -mrelocatable"), | |
8f615d07 | 2162 | bfd_archive_filename (ibfd)); |
252b5132 RH |
2163 | } |
2164 | ||
2165 | /* The output is -mrelocatable-lib iff both the input files are. */ | |
2166 | if (! (new_flags & EF_PPC_RELOCATABLE_LIB)) | |
2167 | elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB; | |
2168 | ||
2169 | /* The output is -mrelocatable iff it can't be -mrelocatable-lib, | |
2170 | but each input file is either -mrelocatable or -mrelocatable-lib. */ | |
2171 | if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB) | |
2172 | && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)) | |
2173 | && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))) | |
2174 | elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE; | |
2175 | ||
ae9a127f | 2176 | /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if any module uses it. */ |
252b5132 RH |
2177 | elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB); |
2178 | ||
2179 | new_flags &= ~ (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB); | |
2180 | old_flags &= ~ (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB); | |
2181 | ||
ae9a127f | 2182 | /* Warn about any other mismatches. */ |
252b5132 RH |
2183 | if (new_flags != old_flags) |
2184 | { | |
b34976b6 | 2185 | error = TRUE; |
252b5132 RH |
2186 | (*_bfd_error_handler) |
2187 | (_("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"), | |
8f615d07 | 2188 | bfd_archive_filename (ibfd), (long) new_flags, (long) old_flags); |
252b5132 RH |
2189 | } |
2190 | ||
2191 | if (error) | |
2192 | { | |
2193 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 2194 | return FALSE; |
252b5132 RH |
2195 | } |
2196 | } | |
2197 | ||
b34976b6 | 2198 | return TRUE; |
252b5132 | 2199 | } |
252b5132 RH |
2200 | \f |
2201 | /* Handle a PowerPC specific section when reading an object file. This | |
2202 | is called when elfcode.h finds a section with an unknown type. */ | |
2203 | ||
b34976b6 | 2204 | static bfd_boolean |
252b5132 RH |
2205 | ppc_elf_section_from_shdr (abfd, hdr, name) |
2206 | bfd *abfd; | |
947216bf | 2207 | Elf_Internal_Shdr *hdr; |
90937f86 | 2208 | const char *name; |
252b5132 RH |
2209 | { |
2210 | asection *newsect; | |
2211 | flagword flags; | |
2212 | ||
2213 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name)) | |
b34976b6 | 2214 | return FALSE; |
252b5132 RH |
2215 | |
2216 | newsect = hdr->bfd_section; | |
2217 | flags = bfd_get_section_flags (abfd, newsect); | |
2218 | if (hdr->sh_flags & SHF_EXCLUDE) | |
2219 | flags |= SEC_EXCLUDE; | |
2220 | ||
2221 | if (hdr->sh_type == SHT_ORDERED) | |
2222 | flags |= SEC_SORT_ENTRIES; | |
2223 | ||
2224 | bfd_set_section_flags (abfd, newsect, flags); | |
b34976b6 | 2225 | return TRUE; |
252b5132 | 2226 | } |
252b5132 RH |
2227 | \f |
2228 | /* Set up any other section flags and such that may be necessary. */ | |
2229 | ||
b34976b6 | 2230 | static bfd_boolean |
252b5132 | 2231 | ppc_elf_fake_sections (abfd, shdr, asect) |
5f771d47 | 2232 | bfd *abfd ATTRIBUTE_UNUSED; |
947216bf | 2233 | Elf_Internal_Shdr *shdr; |
252b5132 RH |
2234 | asection *asect; |
2235 | { | |
2236 | if ((asect->flags & SEC_EXCLUDE) != 0) | |
2237 | shdr->sh_flags |= SHF_EXCLUDE; | |
2238 | ||
2239 | if ((asect->flags & SEC_SORT_ENTRIES) != 0) | |
2240 | shdr->sh_type = SHT_ORDERED; | |
2241 | ||
b34976b6 | 2242 | return TRUE; |
252b5132 | 2243 | } |
252b5132 RH |
2244 | \f |
2245 | /* Create a special linker section */ | |
2246 | static elf_linker_section_t * | |
2247 | ppc_elf_create_linker_section (abfd, info, which) | |
2248 | bfd *abfd; | |
2249 | struct bfd_link_info *info; | |
2250 | enum elf_linker_section_enum which; | |
2251 | { | |
2252 | bfd *dynobj = elf_hash_table (info)->dynobj; | |
2253 | elf_linker_section_t *lsect; | |
2254 | ||
ae9a127f | 2255 | /* Record the first bfd section that needs the special section. */ |
252b5132 RH |
2256 | if (!dynobj) |
2257 | dynobj = elf_hash_table (info)->dynobj = abfd; | |
2258 | ||
ae9a127f | 2259 | /* If this is the first time, create the section. */ |
252b5132 RH |
2260 | lsect = elf_linker_section (dynobj, which); |
2261 | if (!lsect) | |
2262 | { | |
2263 | elf_linker_section_t defaults; | |
2264 | static elf_linker_section_t zero_section; | |
2265 | ||
2266 | defaults = zero_section; | |
2267 | defaults.which = which; | |
b34976b6 | 2268 | defaults.hole_written_p = FALSE; |
252b5132 RH |
2269 | defaults.alignment = 2; |
2270 | ||
2271 | /* Both of these sections are (technically) created by the user | |
2272 | putting data in them, so they shouldn't be marked | |
2273 | SEC_LINKER_CREATED. | |
2274 | ||
2275 | The linker creates them so it has somewhere to attach their | |
2276 | respective symbols. In fact, if they were empty it would | |
2277 | be OK to leave the symbol set to 0 (or any random number), because | |
2278 | the appropriate register should never be used. */ | |
2279 | defaults.flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | |
2280 | | SEC_IN_MEMORY); | |
2281 | ||
2282 | switch (which) | |
2283 | { | |
2284 | default: | |
2285 | (*_bfd_error_handler) (_("%s: Unknown special linker type %d"), | |
2286 | bfd_get_filename (abfd), | |
8da6118f | 2287 | (int) which); |
252b5132 RH |
2288 | |
2289 | bfd_set_error (bfd_error_bad_value); | |
8da6118f | 2290 | return (elf_linker_section_t *) 0; |
252b5132 RH |
2291 | |
2292 | case LINKER_SECTION_SDATA: /* .sdata/.sbss section */ | |
2293 | defaults.name = ".sdata"; | |
2294 | defaults.rel_name = ".rela.sdata"; | |
2295 | defaults.bss_name = ".sbss"; | |
2296 | defaults.sym_name = "_SDA_BASE_"; | |
2297 | defaults.sym_offset = 32768; | |
2298 | break; | |
2299 | ||
2300 | case LINKER_SECTION_SDATA2: /* .sdata2/.sbss2 section */ | |
2301 | defaults.name = ".sdata2"; | |
2302 | defaults.rel_name = ".rela.sdata2"; | |
2303 | defaults.bss_name = ".sbss2"; | |
2304 | defaults.sym_name = "_SDA2_BASE_"; | |
2305 | defaults.sym_offset = 32768; | |
2306 | defaults.flags |= SEC_READONLY; | |
2307 | break; | |
2308 | } | |
2309 | ||
2310 | lsect = _bfd_elf_create_linker_section (abfd, info, which, &defaults); | |
2311 | } | |
2312 | ||
2313 | return lsect; | |
2314 | } | |
252b5132 | 2315 | \f |
8da6118f KH |
2316 | /* If we have a non-zero sized .sbss2 or .PPC.EMB.sbss0 sections, we |
2317 | need to bump up the number of section headers. */ | |
252b5132 RH |
2318 | |
2319 | static int | |
2320 | ppc_elf_additional_program_headers (abfd) | |
2321 | bfd *abfd; | |
2322 | { | |
2323 | asection *s; | |
2324 | int ret; | |
2325 | ||
2326 | ret = 0; | |
2327 | ||
2328 | s = bfd_get_section_by_name (abfd, ".interp"); | |
2329 | if (s != NULL) | |
2330 | ++ret; | |
2331 | ||
2332 | s = bfd_get_section_by_name (abfd, ".sbss2"); | |
2333 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->_raw_size > 0) | |
2334 | ++ret; | |
2335 | ||
2336 | s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0"); | |
2337 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->_raw_size > 0) | |
2338 | ++ret; | |
2339 | ||
2340 | return ret; | |
2341 | } | |
2342 | ||
8da6118f | 2343 | /* Modify the segment map if needed. */ |
252b5132 | 2344 | |
b34976b6 | 2345 | static bfd_boolean |
252b5132 | 2346 | ppc_elf_modify_segment_map (abfd) |
5f771d47 | 2347 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 | 2348 | { |
b34976b6 | 2349 | return TRUE; |
252b5132 RH |
2350 | } |
2351 | \f | |
41fcb14e AM |
2352 | /* The powerpc .got has a blrl instruction in it. Mark it executable. */ |
2353 | ||
7619e7c7 | 2354 | static bfd_boolean |
41fcb14e AM |
2355 | ppc_elf_create_got (abfd, info) |
2356 | bfd *abfd; | |
2357 | struct bfd_link_info *info; | |
2358 | { | |
7619e7c7 AM |
2359 | struct ppc_elf_link_hash_table *htab; |
2360 | asection *s; | |
41fcb14e AM |
2361 | flagword flags; |
2362 | ||
2363 | if (!_bfd_elf_create_got_section (abfd, info)) | |
7619e7c7 | 2364 | return FALSE; |
41fcb14e | 2365 | |
7619e7c7 AM |
2366 | htab = ppc_elf_hash_table (info); |
2367 | htab->got = s = bfd_get_section_by_name (abfd, ".got"); | |
41fcb14e AM |
2368 | if (s == NULL) |
2369 | abort (); | |
2370 | ||
2371 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
2372 | | SEC_LINKER_CREATED); | |
2373 | if (!bfd_set_section_flags (abfd, s, flags)) | |
7619e7c7 AM |
2374 | return FALSE; |
2375 | ||
2376 | htab->relgot = bfd_make_section (abfd, ".rela.got"); | |
2377 | if (!htab->relgot | |
2378 | || ! bfd_set_section_flags (abfd, htab->relgot, | |
2379 | (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | |
2380 | | SEC_IN_MEMORY | SEC_LINKER_CREATED | |
2381 | | SEC_READONLY)) | |
2382 | || ! bfd_set_section_alignment (abfd, htab->relgot, 2)) | |
2383 | return FALSE; | |
2384 | ||
2385 | return TRUE; | |
41fcb14e AM |
2386 | } |
2387 | ||
252b5132 RH |
2388 | /* We have to create .dynsbss and .rela.sbss here so that they get mapped |
2389 | to output sections (just like _bfd_elf_create_dynamic_sections has | |
2390 | to create .dynbss and .rela.bss). */ | |
2391 | ||
b34976b6 | 2392 | static bfd_boolean |
252b5132 RH |
2393 | ppc_elf_create_dynamic_sections (abfd, info) |
2394 | bfd *abfd; | |
2395 | struct bfd_link_info *info; | |
2396 | { | |
7619e7c7 AM |
2397 | struct ppc_elf_link_hash_table *htab; |
2398 | asection *s; | |
252b5132 RH |
2399 | flagword flags; |
2400 | ||
41fcb14e | 2401 | if (!ppc_elf_create_got (abfd, info)) |
b34976b6 | 2402 | return FALSE; |
41fcb14e | 2403 | |
8da6118f | 2404 | if (!_bfd_elf_create_dynamic_sections (abfd, info)) |
b34976b6 | 2405 | return FALSE; |
252b5132 RH |
2406 | |
2407 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
2408 | | SEC_LINKER_CREATED); | |
2409 | ||
7619e7c7 AM |
2410 | htab = ppc_elf_hash_table (info); |
2411 | htab->dynbss = bfd_get_section_by_name (abfd, ".dynbss"); | |
2412 | htab->dynsbss = s = bfd_make_section (abfd, ".dynsbss"); | |
252b5132 RH |
2413 | if (s == NULL |
2414 | || ! bfd_set_section_flags (abfd, s, SEC_ALLOC)) | |
b34976b6 | 2415 | return FALSE; |
252b5132 RH |
2416 | |
2417 | if (! info->shared) | |
2418 | { | |
7619e7c7 AM |
2419 | htab->relbss = bfd_get_section_by_name (abfd, ".rela.bss"); |
2420 | htab->relsbss = s = bfd_make_section (abfd, ".rela.sbss"); | |
252b5132 RH |
2421 | if (s == NULL |
2422 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
2423 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
b34976b6 | 2424 | return FALSE; |
252b5132 | 2425 | } |
41fcb14e | 2426 | |
7619e7c7 AM |
2427 | htab->relplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
2428 | htab->plt = s = bfd_get_section_by_name (abfd, ".plt"); | |
41fcb14e AM |
2429 | if (s == NULL) |
2430 | abort (); | |
2431 | ||
2432 | flags = SEC_ALLOC | SEC_CODE | SEC_IN_MEMORY | SEC_LINKER_CREATED; | |
2433 | return bfd_set_section_flags (abfd, s, flags); | |
252b5132 RH |
2434 | } |
2435 | ||
2436 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
2437 | regular object. The current definition is in some section of the | |
2438 | dynamic object, but we're not including those sections. We have to | |
2439 | change the definition to something the rest of the link can | |
2440 | understand. */ | |
2441 | ||
b34976b6 | 2442 | static bfd_boolean |
252b5132 RH |
2443 | ppc_elf_adjust_dynamic_symbol (info, h) |
2444 | struct bfd_link_info *info; | |
2445 | struct elf_link_hash_entry *h; | |
2446 | { | |
7619e7c7 | 2447 | struct ppc_elf_link_hash_table *htab; |
252b5132 RH |
2448 | asection *s; |
2449 | unsigned int power_of_two; | |
252b5132 RH |
2450 | |
2451 | #ifdef DEBUG | |
2452 | fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n", h->root.root.string); | |
2453 | #endif | |
2454 | ||
2455 | /* Make sure we know what is going on here. */ | |
7619e7c7 AM |
2456 | htab = ppc_elf_hash_table (info); |
2457 | BFD_ASSERT (htab->elf.dynobj != NULL | |
252b5132 RH |
2458 | && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) |
2459 | || h->weakdef != NULL | |
2460 | || ((h->elf_link_hash_flags | |
2461 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
2462 | && (h->elf_link_hash_flags | |
2463 | & ELF_LINK_HASH_REF_REGULAR) != 0 | |
2464 | && (h->elf_link_hash_flags | |
2465 | & ELF_LINK_HASH_DEF_REGULAR) == 0))); | |
2466 | ||
7619e7c7 | 2467 | /* Deal with function syms. */ |
252b5132 RH |
2468 | if (h->type == STT_FUNC |
2469 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
2470 | { | |
7619e7c7 AM |
2471 | /* Clear procedure linkage table information for any symbol that |
2472 | won't need a .plt entry. */ | |
2473 | if (! htab->elf.dynamic_sections_created | |
e1e0340b | 2474 | || SYMBOL_CALLS_LOCAL (info, h) |
7619e7c7 | 2475 | || h->plt.refcount <= 0) |
252b5132 RH |
2476 | { |
2477 | /* A PLT entry is not required/allowed when: | |
2478 | ||
2479 | 1. We are not using ld.so; because then the PLT entry | |
2480 | can't be set up, so we can't use one. | |
2481 | ||
e1e0340b GK |
2482 | 2. We know for certain that a call to this symbol |
2483 | will go to this object. | |
252b5132 | 2484 | |
7619e7c7 | 2485 | 3. GC has rendered the entry unused. */ |
252b5132 RH |
2486 | h->plt.offset = (bfd_vma) -1; |
2487 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
252b5132 | 2488 | } |
b34976b6 | 2489 | return TRUE; |
252b5132 | 2490 | } |
bbd7ec4a AM |
2491 | else |
2492 | h->plt.offset = (bfd_vma) -1; | |
252b5132 RH |
2493 | |
2494 | /* If this is a weak symbol, and there is a real definition, the | |
2495 | processor independent code will have arranged for us to see the | |
2496 | real definition first, and we can just use the same value. */ | |
2497 | if (h->weakdef != NULL) | |
2498 | { | |
2499 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined | |
2500 | || h->weakdef->root.type == bfd_link_hash_defweak); | |
2501 | h->root.u.def.section = h->weakdef->root.u.def.section; | |
2502 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
b34976b6 | 2503 | return TRUE; |
252b5132 RH |
2504 | } |
2505 | ||
2506 | /* This is a reference to a symbol defined by a dynamic object which | |
2507 | is not a function. */ | |
2508 | ||
2509 | /* If we are creating a shared library, we must presume that the | |
2510 | only references to the symbol are via the global offset table. | |
2511 | For such cases we need not do anything here; the relocations will | |
2512 | be handled correctly by relocate_section. */ | |
2513 | if (info->shared) | |
b34976b6 | 2514 | return TRUE; |
252b5132 | 2515 | |
7619e7c7 AM |
2516 | /* If there are no references to this symbol that do not use the |
2517 | GOT, we don't need to generate a copy reloc. */ | |
2518 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
2519 | return TRUE; | |
2520 | ||
252b5132 RH |
2521 | /* We must allocate the symbol in our .dynbss section, which will |
2522 | become part of the .bss section of the executable. There will be | |
2523 | an entry for this symbol in the .dynsym section. The dynamic | |
2524 | object will contain position independent code, so all references | |
2525 | from the dynamic object to this symbol will go through the global | |
2526 | offset table. The dynamic linker will use the .dynsym entry to | |
2527 | determine the address it must put in the global offset table, so | |
2528 | both the dynamic object and the regular object will refer to the | |
2529 | same memory location for the variable. | |
2530 | ||
2531 | Of course, if the symbol is sufficiently small, we must instead | |
2532 | allocate it in .sbss. FIXME: It would be better to do this if and | |
2533 | only if there were actually SDAREL relocs for that symbol. */ | |
2534 | ||
7619e7c7 AM |
2535 | if (h->size <= elf_gp_size (htab->elf.dynobj)) |
2536 | s = htab->dynsbss; | |
252b5132 | 2537 | else |
7619e7c7 | 2538 | s = htab->dynbss; |
252b5132 RH |
2539 | BFD_ASSERT (s != NULL); |
2540 | ||
2541 | /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to | |
2542 | copy the initial value out of the dynamic object and into the | |
2543 | runtime process image. We need to remember the offset into the | |
2544 | .rela.bss section we are going to use. */ | |
2545 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
2546 | { | |
2547 | asection *srel; | |
2548 | ||
7619e7c7 AM |
2549 | if (h->size <= elf_gp_size (htab->elf.dynobj)) |
2550 | srel = htab->relsbss; | |
252b5132 | 2551 | else |
7619e7c7 | 2552 | srel = htab->relbss; |
252b5132 RH |
2553 | BFD_ASSERT (srel != NULL); |
2554 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
2555 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; | |
2556 | } | |
2557 | ||
2558 | /* We need to figure out the alignment required for this symbol. I | |
2559 | have no idea how ELF linkers handle this. */ | |
2560 | power_of_two = bfd_log2 (h->size); | |
2561 | if (power_of_two > 4) | |
2562 | power_of_two = 4; | |
2563 | ||
2564 | /* Apply the required alignment. */ | |
2565 | s->_raw_size = BFD_ALIGN (s->_raw_size, | |
2566 | (bfd_size_type) (1 << power_of_two)); | |
7619e7c7 | 2567 | if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) |
252b5132 | 2568 | { |
7619e7c7 | 2569 | if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) |
b34976b6 | 2570 | return FALSE; |
252b5132 RH |
2571 | } |
2572 | ||
2573 | /* Define the symbol as being at this point in the section. */ | |
2574 | h->root.u.def.section = s; | |
2575 | h->root.u.def.value = s->_raw_size; | |
2576 | ||
2577 | /* Increment the section size to make room for the symbol. */ | |
2578 | s->_raw_size += h->size; | |
2579 | ||
b34976b6 | 2580 | return TRUE; |
252b5132 | 2581 | } |
252b5132 | 2582 | \f |
7619e7c7 AM |
2583 | /* This is the condition under which finish_dynamic_symbol will be |
2584 | called from elflink.h. If elflink.h doesn't call our | |
2585 | finish_dynamic_symbol routine, we'll need to do something about | |
2586 | initializing any .plt and .got entries in relocate_section. */ | |
2587 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \ | |
2588 | ((DYN) \ | |
2589 | && ((INFO)->shared \ | |
2590 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ | |
2591 | && ((H)->dynindx != -1 \ | |
2592 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) | |
2593 | ||
7fce784e AS |
2594 | /* Allocate space in associated reloc sections for dynamic relocs. */ |
2595 | ||
7619e7c7 AM |
2596 | static bfd_boolean |
2597 | allocate_dynrelocs (h, inf) | |
2598 | struct elf_link_hash_entry *h; | |
2599 | PTR inf; | |
2600 | { | |
2601 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
2602 | struct ppc_elf_link_hash_entry *eh; | |
2603 | struct ppc_elf_link_hash_table *htab; | |
2604 | struct ppc_elf_dyn_relocs *p; | |
2605 | ||
2606 | if (h->root.type == bfd_link_hash_indirect) | |
2607 | return TRUE; | |
2608 | ||
2609 | if (h->root.type == bfd_link_hash_warning) | |
2610 | /* When warning symbols are created, they **replace** the "real" | |
2611 | entry in the hash table, thus we never get to see the real | |
2612 | symbol in a hash traversal. So look at it now. */ | |
2613 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2614 | ||
2615 | htab = ppc_elf_hash_table (info); | |
2616 | if (htab->elf.dynamic_sections_created | |
2617 | && h->plt.refcount > 0) | |
2618 | { | |
2619 | /* Make sure this symbol is output as a dynamic symbol. */ | |
2620 | if (h->dynindx == -1 | |
2621 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
2622 | { | |
2623 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2624 | return FALSE; | |
2625 | } | |
2626 | ||
2627 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h)) | |
2628 | { | |
2629 | asection *s = htab->plt; | |
2630 | ||
2631 | /* If this is the first .plt entry, make room for the special | |
2632 | first entry. */ | |
2633 | if (s->_raw_size == 0) | |
2634 | s->_raw_size += PLT_INITIAL_ENTRY_SIZE; | |
2635 | ||
2636 | /* The PowerPC PLT is actually composed of two parts, the | |
2637 | first part is 2 words (for a load and a jump), and then | |
2638 | there is a remaining word available at the end. */ | |
2639 | h->plt.offset = (PLT_INITIAL_ENTRY_SIZE | |
2640 | + (PLT_SLOT_SIZE | |
2641 | * ((s->_raw_size - PLT_INITIAL_ENTRY_SIZE) | |
2642 | / PLT_ENTRY_SIZE))); | |
2643 | ||
2644 | /* If this symbol is not defined in a regular file, and we | |
2645 | are not generating a shared library, then set the symbol | |
2646 | to this location in the .plt. This is required to make | |
2647 | function pointers compare as equal between the normal | |
2648 | executable and the shared library. */ | |
2649 | if (! info->shared | |
2650 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
2651 | { | |
2652 | h->root.u.def.section = s; | |
2653 | h->root.u.def.value = h->plt.offset; | |
2654 | } | |
2655 | ||
2656 | /* Make room for this entry. After the 8192nd entry, room | |
2657 | for two entries is allocated. */ | |
2658 | s->_raw_size += PLT_ENTRY_SIZE; | |
2659 | if ((s->_raw_size - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE | |
2660 | >= PLT_NUM_SINGLE_ENTRIES) | |
2661 | s->_raw_size += PLT_ENTRY_SIZE; | |
2662 | ||
2663 | /* We also need to make an entry in the .rela.plt section. */ | |
2664 | htab->relplt->_raw_size += sizeof (Elf32_External_Rela); | |
2665 | } | |
2666 | else | |
2667 | { | |
2668 | h->plt.offset = (bfd_vma) -1; | |
2669 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
2670 | } | |
2671 | } | |
2672 | else | |
2673 | { | |
2674 | h->plt.offset = (bfd_vma) -1; | |
2675 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
2676 | } | |
7fce784e | 2677 | |
7619e7c7 AM |
2678 | eh = (struct ppc_elf_link_hash_entry *) h; |
2679 | if (eh->elf.got.refcount > 0) | |
2680 | { | |
2681 | /* Make sure this symbol is output as a dynamic symbol. */ | |
2682 | if (eh->elf.dynindx == -1 | |
2683 | && (eh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
2684 | { | |
2685 | if (!bfd_elf32_link_record_dynamic_symbol (info, &eh->elf)) | |
2686 | return FALSE; | |
2687 | } | |
7fce784e | 2688 | |
7619e7c7 AM |
2689 | if (eh->tls_mask == (TLS_TLS | TLS_LD) |
2690 | && !(eh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)) | |
2691 | /* If just an LD reloc, we'll just use htab->tlsld_got.offset. */ | |
2692 | eh->elf.got.offset = (bfd_vma) -1; | |
2693 | else | |
2694 | { | |
2695 | bfd_boolean dyn; | |
2696 | eh->elf.got.offset = htab->got->_raw_size; | |
2697 | if ((eh->tls_mask & TLS_TLS) != 0) | |
2698 | { | |
2699 | if ((eh->tls_mask & (TLS_GD | TLS_LD)) != 0) | |
2700 | htab->got->_raw_size += 8; | |
2701 | if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0) | |
2702 | htab->got->_raw_size += 4; | |
2703 | if ((eh->tls_mask & TLS_DTPREL) != 0) | |
2704 | htab->got->_raw_size += 4; | |
2705 | } | |
2706 | else | |
2707 | htab->got->_raw_size += 4; | |
2708 | dyn = htab->elf.dynamic_sections_created; | |
2709 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, &eh->elf)) | |
2710 | { | |
2711 | /* All the entries we allocated need relocs. */ | |
2712 | htab->relgot->_raw_size | |
2713 | += ((htab->got->_raw_size - eh->elf.got.offset) / 4 | |
2714 | * sizeof (Elf32_External_Rela)); | |
2715 | /* Except LD only needs one. */ | |
2716 | if ((eh->tls_mask & TLS_LD) != 0) | |
2717 | htab->relgot->_raw_size -= sizeof (Elf32_External_Rela); | |
2718 | } | |
2719 | } | |
2720 | } | |
2721 | else | |
2722 | eh->elf.got.offset = (bfd_vma) -1; | |
7fce784e | 2723 | |
7619e7c7 | 2724 | for (p = eh->dyn_relocs; p != NULL; p = p->next) |
7fce784e AS |
2725 | { |
2726 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
2727 | sreloc->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
2728 | } | |
2729 | ||
2730 | return TRUE; | |
2731 | } | |
2732 | ||
2733 | /* Find any dynamic relocs that apply to read-only sections. */ | |
2734 | ||
2735 | static bfd_boolean | |
2736 | readonly_dynrelocs (h, info) | |
2737 | struct elf_link_hash_entry *h; | |
2738 | PTR info; | |
2739 | { | |
2740 | struct ppc_elf_dyn_relocs *p; | |
2741 | ||
2742 | if (h->root.type == bfd_link_hash_indirect) | |
2743 | return TRUE; | |
2744 | ||
2745 | if (h->root.type == bfd_link_hash_warning) | |
2746 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2747 | ||
2748 | for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next) | |
2749 | { | |
2750 | asection *s = p->sec->output_section; | |
2751 | ||
2752 | if (s != NULL | |
2753 | && ((s->flags & (SEC_READONLY | SEC_ALLOC)) | |
2754 | == (SEC_READONLY | SEC_ALLOC))) | |
2755 | { | |
2756 | ((struct bfd_link_info *) info)->flags |= DF_TEXTREL; | |
2757 | ||
2758 | /* Not an error, just cut short the traversal. */ | |
2759 | return FALSE; | |
2760 | } | |
2761 | } | |
2762 | return TRUE; | |
2763 | } | |
2764 | ||
252b5132 RH |
2765 | /* Set the sizes of the dynamic sections. */ |
2766 | ||
b34976b6 | 2767 | static bfd_boolean |
252b5132 | 2768 | ppc_elf_size_dynamic_sections (output_bfd, info) |
29c2fb7c | 2769 | bfd *output_bfd ATTRIBUTE_UNUSED; |
252b5132 RH |
2770 | struct bfd_link_info *info; |
2771 | { | |
7619e7c7 | 2772 | struct ppc_elf_link_hash_table *htab; |
252b5132 | 2773 | asection *s; |
b34976b6 | 2774 | bfd_boolean relocs; |
7fce784e | 2775 | bfd *ibfd; |
252b5132 RH |
2776 | |
2777 | #ifdef DEBUG | |
2778 | fprintf (stderr, "ppc_elf_size_dynamic_sections called\n"); | |
2779 | #endif | |
2780 | ||
7619e7c7 AM |
2781 | htab = ppc_elf_hash_table (info); |
2782 | BFD_ASSERT (htab->elf.dynobj != NULL); | |
252b5132 RH |
2783 | |
2784 | if (elf_hash_table (info)->dynamic_sections_created) | |
2785 | { | |
2786 | /* Set the contents of the .interp section to the interpreter. */ | |
2787 | if (! info->shared) | |
2788 | { | |
7619e7c7 | 2789 | s = bfd_get_section_by_name (htab->elf.dynobj, ".interp"); |
252b5132 RH |
2790 | BFD_ASSERT (s != NULL); |
2791 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; | |
2792 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
2793 | } | |
2794 | } | |
7619e7c7 AM |
2795 | |
2796 | if (htab->tlsld_got.refcount > 0) | |
252b5132 | 2797 | { |
7619e7c7 AM |
2798 | htab->tlsld_got.offset = htab->got->_raw_size; |
2799 | htab->got->_raw_size += 8; | |
2800 | if (info->shared) | |
2801 | htab->relgot->_raw_size += sizeof (Elf32_External_Rela); | |
252b5132 | 2802 | } |
7619e7c7 AM |
2803 | else |
2804 | htab->tlsld_got.offset = (bfd_vma) -1; | |
252b5132 | 2805 | |
7619e7c7 AM |
2806 | /* Set up .got offsets for local syms, and space for local dynamic |
2807 | relocs. */ | |
7fce784e AS |
2808 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
2809 | { | |
7619e7c7 AM |
2810 | bfd_signed_vma *local_got; |
2811 | bfd_signed_vma *end_local_got; | |
2812 | char *lgot_masks; | |
2813 | bfd_size_type locsymcount; | |
2814 | Elf_Internal_Shdr *symtab_hdr; | |
2815 | asection *srel; | |
2816 | ||
7fce784e AS |
2817 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
2818 | continue; | |
2819 | ||
2820 | for (s = ibfd->sections; s != NULL; s = s->next) | |
2821 | { | |
2822 | struct ppc_elf_dyn_relocs *p; | |
2823 | ||
2824 | for (p = ((struct ppc_elf_dyn_relocs *) | |
2825 | elf_section_data (s)->local_dynrel); | |
2826 | p != NULL; | |
2827 | p = p->next) | |
2828 | { | |
2829 | if (!bfd_is_abs_section (p->sec) | |
2830 | && bfd_is_abs_section (p->sec->output_section)) | |
2831 | { | |
2832 | /* Input section has been discarded, either because | |
2833 | it is a copy of a linkonce section or due to | |
2834 | linker script /DISCARD/, so we'll be discarding | |
2835 | the relocs too. */ | |
2836 | } | |
2837 | else if (p->count != 0) | |
2838 | { | |
2839 | elf_section_data (p->sec)->sreloc->_raw_size | |
2840 | += p->count * sizeof (Elf32_External_Rela); | |
2841 | if ((p->sec->output_section->flags | |
2842 | & (SEC_READONLY | SEC_ALLOC)) | |
2843 | == (SEC_READONLY | SEC_ALLOC)) | |
2844 | info->flags |= DF_TEXTREL; | |
2845 | } | |
2846 | } | |
2847 | } | |
7619e7c7 AM |
2848 | |
2849 | local_got = elf_local_got_refcounts (ibfd); | |
2850 | if (!local_got) | |
2851 | continue; | |
2852 | ||
2853 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
2854 | locsymcount = symtab_hdr->sh_info; | |
2855 | end_local_got = local_got + locsymcount; | |
2856 | lgot_masks = (char *) end_local_got; | |
2857 | s = htab->got; | |
2858 | srel = htab->relgot; | |
2859 | for (; local_got < end_local_got; ++local_got, ++lgot_masks) | |
2860 | if (*local_got > 0) | |
2861 | { | |
2862 | if (*lgot_masks == (TLS_TLS | TLS_LD)) | |
2863 | { | |
2864 | /* If just an LD reloc, we'll just use | |
2865 | htab->tlsld_got.offset. */ | |
2866 | if (htab->tlsld_got.offset == (bfd_vma) -1) | |
2867 | { | |
2868 | htab->tlsld_got.offset = s->_raw_size; | |
2869 | s->_raw_size += 8; | |
2870 | if (info->shared) | |
2871 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
2872 | } | |
2873 | *local_got = (bfd_vma) -1; | |
2874 | } | |
2875 | else | |
2876 | { | |
2877 | *local_got = s->_raw_size; | |
2878 | if ((*lgot_masks & TLS_TLS) != 0) | |
2879 | { | |
2880 | if ((*lgot_masks & TLS_GD) != 0) | |
2881 | s->_raw_size += 8; | |
2882 | if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0) | |
2883 | s->_raw_size += 4; | |
2884 | if ((*lgot_masks & TLS_DTPREL) != 0) | |
2885 | s->_raw_size += 4; | |
2886 | } | |
2887 | else | |
2888 | s->_raw_size += 4; | |
2889 | if (info->shared) | |
2890 | srel->_raw_size += ((s->_raw_size - *local_got) / 4 | |
2891 | * sizeof (Elf32_External_Rela)); | |
2892 | } | |
2893 | } | |
2894 | else | |
2895 | *local_got = (bfd_vma) -1; | |
7fce784e AS |
2896 | } |
2897 | ||
2898 | /* Allocate space for global sym dynamic relocs. */ | |
7619e7c7 | 2899 | elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info); |
7fce784e | 2900 | |
7619e7c7 AM |
2901 | /* We've now determined the sizes of the various dynamic sections. |
2902 | Allocate memory for them. */ | |
b34976b6 | 2903 | relocs = FALSE; |
7619e7c7 | 2904 | for (s = htab->elf.dynobj->sections; s != NULL; s = s->next) |
252b5132 | 2905 | { |
252b5132 RH |
2906 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
2907 | continue; | |
2908 | ||
7619e7c7 AM |
2909 | if (s == htab->plt |
2910 | || s == htab->got | |
2911 | || (htab->sdata != NULL && s == htab->sdata->section) | |
2912 | || (htab->sdata2 != NULL && s == htab->sdata2->section)) | |
252b5132 | 2913 | { |
7619e7c7 AM |
2914 | /* Strip this section if we don't need it; see the |
2915 | comment below. */ | |
252b5132 | 2916 | } |
7619e7c7 | 2917 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) |
252b5132 RH |
2918 | { |
2919 | if (s->_raw_size == 0) | |
2920 | { | |
2921 | /* If we don't need this section, strip it from the | |
2922 | output file. This is mostly to handle .rela.bss and | |
2923 | .rela.plt. We must create both sections in | |
2924 | create_dynamic_sections, because they must be created | |
2925 | before the linker maps input sections to output | |
2926 | sections. The linker does that before | |
2927 | adjust_dynamic_symbol is called, and it is that | |
2928 | function which decides whether anything needs to go | |
2929 | into these sections. */ | |
252b5132 RH |
2930 | } |
2931 | else | |
2932 | { | |
c3668558 | 2933 | /* Remember whether there are any relocation sections. */ |
b34976b6 | 2934 | relocs = TRUE; |
252b5132 | 2935 | |
252b5132 RH |
2936 | /* We use the reloc_count field as a counter if we need |
2937 | to copy relocs into the output file. */ | |
2938 | s->reloc_count = 0; | |
2939 | } | |
2940 | } | |
7619e7c7 | 2941 | else |
252b5132 RH |
2942 | { |
2943 | /* It's not one of our sections, so don't allocate space. */ | |
2944 | continue; | |
2945 | } | |
2946 | ||
7619e7c7 | 2947 | if (s->_raw_size == 0) |
252b5132 | 2948 | { |
7f8d5fc9 | 2949 | _bfd_strip_section_from_output (info, s); |
252b5132 RH |
2950 | continue; |
2951 | } | |
2952 | ||
2953 | /* Allocate memory for the section contents. */ | |
7619e7c7 AM |
2954 | s->contents = (bfd_byte *) bfd_zalloc (htab->elf.dynobj, s->_raw_size); |
2955 | if (s->contents == NULL) | |
b34976b6 | 2956 | return FALSE; |
252b5132 RH |
2957 | } |
2958 | ||
7619e7c7 | 2959 | if (htab->elf.dynamic_sections_created) |
252b5132 RH |
2960 | { |
2961 | /* Add some entries to the .dynamic section. We fill in the | |
2962 | values later, in ppc_elf_finish_dynamic_sections, but we | |
2963 | must add the entries now so that we get the correct size for | |
2964 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2965 | dynamic linker and used by the debugger. */ | |
dc810e39 AM |
2966 | #define add_dynamic_entry(TAG, VAL) \ |
2967 | bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) | |
2968 | ||
2969 | if (!info->shared) | |
252b5132 | 2970 | { |
dc810e39 | 2971 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 2972 | return FALSE; |
252b5132 RH |
2973 | } |
2974 | ||
7619e7c7 | 2975 | if (htab->plt != NULL && htab->plt->_raw_size != 0) |
252b5132 | 2976 | { |
dc810e39 AM |
2977 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
2978 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
2979 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2980 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 2981 | return FALSE; |
252b5132 RH |
2982 | } |
2983 | ||
2984 | if (relocs) | |
2985 | { | |
dc810e39 AM |
2986 | if (!add_dynamic_entry (DT_RELA, 0) |
2987 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2988 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
b34976b6 | 2989 | return FALSE; |
252b5132 RH |
2990 | } |
2991 | ||
7fce784e AS |
2992 | /* If any dynamic relocs apply to a read-only section, then we |
2993 | need a DT_TEXTREL entry. */ | |
2994 | if ((info->flags & DF_TEXTREL) == 0) | |
2995 | elf_link_hash_traverse (elf_hash_table (info), readonly_dynrelocs, | |
2996 | (PTR) info); | |
2997 | ||
29c2fb7c | 2998 | if ((info->flags & DF_TEXTREL) != 0) |
252b5132 | 2999 | { |
dc810e39 | 3000 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 3001 | return FALSE; |
252b5132 RH |
3002 | } |
3003 | } | |
dc810e39 | 3004 | #undef add_dynamic_entry |
252b5132 | 3005 | |
b34976b6 | 3006 | return TRUE; |
252b5132 | 3007 | } |
252b5132 | 3008 | \f |
7619e7c7 AM |
3009 | static bfd_boolean |
3010 | update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type) | |
3011 | bfd *abfd; | |
3012 | Elf_Internal_Shdr *symtab_hdr; | |
3013 | unsigned long r_symndx; | |
3014 | int tls_type; | |
3015 | { | |
3016 | bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd); | |
3017 | char *local_got_tls_masks; | |
3018 | ||
3019 | if (local_got_refcounts == NULL) | |
3020 | { | |
3021 | bfd_size_type size = symtab_hdr->sh_info; | |
3022 | ||
3023 | size *= sizeof (*local_got_refcounts) + sizeof (*local_got_tls_masks); | |
3024 | local_got_refcounts = (bfd_signed_vma *) bfd_zalloc (abfd, size); | |
3025 | if (local_got_refcounts == NULL) | |
3026 | return FALSE; | |
3027 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
3028 | } | |
3029 | ||
3030 | local_got_refcounts[r_symndx] += 1; | |
3031 | local_got_tls_masks = (char *) (local_got_refcounts + symtab_hdr->sh_info); | |
3032 | local_got_tls_masks[r_symndx] |= tls_type; | |
3033 | return TRUE; | |
3034 | } | |
3035 | ||
3036 | static void | |
3037 | bad_shared_reloc (abfd, r_type) | |
3038 | bfd *abfd; | |
3039 | enum elf_ppc_reloc_type r_type; | |
3040 | { | |
3041 | (*_bfd_error_handler) | |
3042 | (_("%s: relocation %s cannot be used when making a shared object"), | |
3043 | bfd_archive_filename (abfd), | |
3044 | ppc_elf_howto_table[(int) r_type]->name); | |
3045 | bfd_set_error (bfd_error_bad_value); | |
3046 | } | |
3047 | ||
252b5132 RH |
3048 | /* Look through the relocs for a section during the first phase, and |
3049 | allocate space in the global offset table or procedure linkage | |
3050 | table. */ | |
3051 | ||
b34976b6 | 3052 | static bfd_boolean |
252b5132 RH |
3053 | ppc_elf_check_relocs (abfd, info, sec, relocs) |
3054 | bfd *abfd; | |
3055 | struct bfd_link_info *info; | |
3056 | asection *sec; | |
3057 | const Elf_Internal_Rela *relocs; | |
3058 | { | |
7619e7c7 | 3059 | struct ppc_elf_link_hash_table *htab; |
252b5132 | 3060 | Elf_Internal_Shdr *symtab_hdr; |
7619e7c7 | 3061 | struct elf_link_hash_entry **sym_hashes; |
252b5132 RH |
3062 | const Elf_Internal_Rela *rel; |
3063 | const Elf_Internal_Rela *rel_end; | |
252b5132 | 3064 | asection *sreloc; |
252b5132 RH |
3065 | |
3066 | if (info->relocateable) | |
b34976b6 | 3067 | return TRUE; |
252b5132 RH |
3068 | |
3069 | #ifdef DEBUG | |
3070 | fprintf (stderr, "ppc_elf_check_relocs called for section %s in %s\n", | |
3071 | bfd_get_section_name (abfd, sec), | |
8f615d07 | 3072 | bfd_archive_filename (abfd)); |
252b5132 RH |
3073 | #endif |
3074 | ||
3075 | /* Create the linker generated sections all the time so that the | |
3076 | special symbols are created. */ | |
3077 | ||
7619e7c7 AM |
3078 | htab = ppc_elf_hash_table (info); |
3079 | if (htab->sdata == NULL) | |
252b5132 | 3080 | { |
7619e7c7 AM |
3081 | htab->sdata = elf_linker_section (abfd, LINKER_SECTION_SDATA); |
3082 | if (htab->sdata == NULL) | |
3083 | htab->sdata = ppc_elf_create_linker_section (abfd, info, | |
3084 | LINKER_SECTION_SDATA); | |
3085 | if (htab->sdata == NULL) | |
b34976b6 | 3086 | return FALSE; |
252b5132 RH |
3087 | } |
3088 | ||
7619e7c7 | 3089 | if (htab->sdata2 == NULL) |
252b5132 | 3090 | { |
7619e7c7 AM |
3091 | htab->sdata2 = elf_linker_section (abfd, LINKER_SECTION_SDATA2); |
3092 | if (htab->sdata2 == NULL) | |
3093 | htab->sdata2 = ppc_elf_create_linker_section (abfd, info, | |
3094 | LINKER_SECTION_SDATA2); | |
3095 | if (htab->sdata2 == NULL) | |
b34976b6 | 3096 | return FALSE; |
252b5132 RH |
3097 | } |
3098 | ||
252b5132 | 3099 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
252b5132 | 3100 | sym_hashes = elf_sym_hashes (abfd); |
252b5132 RH |
3101 | sreloc = NULL; |
3102 | ||
3103 | rel_end = relocs + sec->reloc_count; | |
3104 | for (rel = relocs; rel < rel_end; rel++) | |
3105 | { | |
3106 | unsigned long r_symndx; | |
7619e7c7 | 3107 | enum elf_ppc_reloc_type r_type; |
252b5132 | 3108 | struct elf_link_hash_entry *h; |
7619e7c7 | 3109 | int tls_type = 0; |
252b5132 RH |
3110 | |
3111 | r_symndx = ELF32_R_SYM (rel->r_info); | |
3112 | if (r_symndx < symtab_hdr->sh_info) | |
3113 | h = NULL; | |
3114 | else | |
3115 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
3116 | ||
3117 | /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got. | |
3118 | This shows up in particular in an R_PPC_ADDR32 in the eabi | |
3119 | startup code. */ | |
3120 | if (h && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
3121 | { | |
7619e7c7 | 3122 | if (htab->got == NULL) |
252b5132 | 3123 | { |
7619e7c7 AM |
3124 | if (htab->elf.dynobj == NULL) |
3125 | htab->elf.dynobj = abfd; | |
3126 | if (!ppc_elf_create_got (htab->elf.dynobj, info)) | |
b34976b6 | 3127 | return FALSE; |
252b5132 RH |
3128 | } |
3129 | } | |
3130 | ||
7619e7c7 AM |
3131 | r_type = (enum elf_ppc_reloc_type) ELF32_R_TYPE (rel->r_info); |
3132 | switch (r_type) | |
252b5132 | 3133 | { |
7619e7c7 AM |
3134 | case R_PPC_GOT_TLSLD16: |
3135 | case R_PPC_GOT_TLSLD16_LO: | |
3136 | case R_PPC_GOT_TLSLD16_HI: | |
3137 | case R_PPC_GOT_TLSLD16_HA: | |
3138 | htab->tlsld_got.refcount += 1; | |
3139 | tls_type = TLS_TLS | TLS_LD; | |
3140 | goto dogottls; | |
3141 | ||
3142 | case R_PPC_GOT_TLSGD16: | |
3143 | case R_PPC_GOT_TLSGD16_LO: | |
3144 | case R_PPC_GOT_TLSGD16_HI: | |
3145 | case R_PPC_GOT_TLSGD16_HA: | |
3146 | tls_type = TLS_TLS | TLS_GD; | |
3147 | goto dogottls; | |
3148 | ||
3149 | case R_PPC_GOT_TPREL16: | |
3150 | case R_PPC_GOT_TPREL16_LO: | |
3151 | case R_PPC_GOT_TPREL16_HI: | |
3152 | case R_PPC_GOT_TPREL16_HA: | |
3153 | if (info->shared) | |
3154 | info->flags |= DF_STATIC_TLS; | |
3155 | tls_type = TLS_TLS | TLS_TPREL; | |
3156 | goto dogottls; | |
3157 | ||
3158 | case R_PPC_GOT_DTPREL16: | |
3159 | case R_PPC_GOT_DTPREL16_LO: | |
3160 | case R_PPC_GOT_DTPREL16_HI: | |
3161 | case R_PPC_GOT_DTPREL16_HA: | |
3162 | tls_type = TLS_TLS | TLS_DTPREL; | |
3163 | dogottls: | |
3164 | sec->has_tls_reloc = 1; | |
3165 | /* Fall thru */ | |
3166 | ||
252b5132 RH |
3167 | /* GOT16 relocations */ |
3168 | case R_PPC_GOT16: | |
3169 | case R_PPC_GOT16_LO: | |
3170 | case R_PPC_GOT16_HI: | |
3171 | case R_PPC_GOT16_HA: | |
3172 | /* This symbol requires a global offset table entry. */ | |
7619e7c7 | 3173 | if (htab->got == NULL) |
252b5132 | 3174 | { |
7619e7c7 AM |
3175 | if (htab->elf.dynobj == NULL) |
3176 | htab->elf.dynobj = abfd; | |
3177 | if (!ppc_elf_create_got (htab->elf.dynobj, info)) | |
b34976b6 | 3178 | return FALSE; |
252b5132 | 3179 | } |
252b5132 RH |
3180 | if (h != NULL) |
3181 | { | |
7619e7c7 AM |
3182 | h->got.refcount += 1; |
3183 | ppc_elf_hash_entry (h)->tls_mask |= tls_type; | |
252b5132 RH |
3184 | } |
3185 | else | |
7619e7c7 AM |
3186 | /* This is a global offset table entry for a local symbol. */ |
3187 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type)) | |
3188 | return FALSE; | |
252b5132 RH |
3189 | break; |
3190 | ||
ae9a127f | 3191 | /* Indirect .sdata relocation. */ |
252b5132 RH |
3192 | case R_PPC_EMB_SDAI16: |
3193 | if (info->shared) | |
3194 | { | |
7619e7c7 | 3195 | bad_shared_reloc (abfd, r_type); |
b34976b6 | 3196 | return FALSE; |
252b5132 | 3197 | } |
7619e7c7 AM |
3198 | if (!bfd_elf32_create_pointer_linker_section (abfd, info, |
3199 | htab->sdata, h, rel)) | |
b34976b6 | 3200 | return FALSE; |
252b5132 RH |
3201 | break; |
3202 | ||
ae9a127f | 3203 | /* Indirect .sdata2 relocation. */ |
252b5132 RH |
3204 | case R_PPC_EMB_SDA2I16: |
3205 | if (info->shared) | |
3206 | { | |
7619e7c7 | 3207 | bad_shared_reloc (abfd, r_type); |
b34976b6 | 3208 | return FALSE; |
252b5132 | 3209 | } |
7619e7c7 AM |
3210 | if (!bfd_elf32_create_pointer_linker_section (abfd, info, |
3211 | htab->sdata2, h, rel)) | |
b34976b6 | 3212 | return FALSE; |
252b5132 RH |
3213 | break; |
3214 | ||
3215 | case R_PPC_SDAREL16: | |
3216 | case R_PPC_EMB_SDA2REL: | |
3217 | case R_PPC_EMB_SDA21: | |
7619e7c7 AM |
3218 | case R_PPC_EMB_RELSDA: |
3219 | case R_PPC_EMB_NADDR32: | |
3220 | case R_PPC_EMB_NADDR16: | |
3221 | case R_PPC_EMB_NADDR16_LO: | |
3222 | case R_PPC_EMB_NADDR16_HI: | |
3223 | case R_PPC_EMB_NADDR16_HA: | |
252b5132 RH |
3224 | if (info->shared) |
3225 | { | |
7619e7c7 | 3226 | bad_shared_reloc (abfd, r_type); |
b34976b6 | 3227 | return FALSE; |
252b5132 RH |
3228 | } |
3229 | break; | |
3230 | ||
3231 | case R_PPC_PLT32: | |
3232 | case R_PPC_PLTREL24: | |
7619e7c7 | 3233 | case R_PPC_PLTREL32: |
252b5132 RH |
3234 | case R_PPC_PLT16_LO: |
3235 | case R_PPC_PLT16_HI: | |
3236 | case R_PPC_PLT16_HA: | |
3237 | #ifdef DEBUG | |
3238 | fprintf (stderr, "Reloc requires a PLT entry\n"); | |
3239 | #endif | |
3240 | /* This symbol requires a procedure linkage table entry. We | |
7619e7c7 | 3241 | actually build the entry in finish_dynamic_symbol, |
252b5132 RH |
3242 | because this might be a case of linking PIC code without |
3243 | linking in any dynamic objects, in which case we don't | |
3244 | need to generate a procedure linkage table after all. */ | |
3245 | ||
3246 | if (h == NULL) | |
3247 | { | |
3248 | /* It does not make sense to have a procedure linkage | |
3249 | table entry for a local symbol. */ | |
3250 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3251 | return FALSE; |
252b5132 RH |
3252 | } |
3253 | ||
51b64d56 AM |
3254 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
3255 | h->plt.refcount++; | |
252b5132 RH |
3256 | break; |
3257 | ||
3258 | /* The following relocations don't need to propagate the | |
3259 | relocation if linking a shared object since they are | |
3260 | section relative. */ | |
3261 | case R_PPC_SECTOFF: | |
3262 | case R_PPC_SECTOFF_LO: | |
3263 | case R_PPC_SECTOFF_HI: | |
3264 | case R_PPC_SECTOFF_HA: | |
7619e7c7 AM |
3265 | case R_PPC_DTPREL16: |
3266 | case R_PPC_DTPREL16_LO: | |
3267 | case R_PPC_DTPREL16_HI: | |
3268 | case R_PPC_DTPREL16_HA: | |
3269 | case R_PPC_TOC16: | |
3270 | break; | |
3271 | ||
3272 | /* This are just markers. */ | |
3273 | case R_PPC_TLS: | |
3274 | case R_PPC_EMB_MRKREF: | |
3275 | case R_PPC_NONE: | |
3276 | case R_PPC_max: | |
3277 | break; | |
3278 | ||
3279 | /* These should only appear in dynamic objects. */ | |
3280 | case R_PPC_COPY: | |
3281 | case R_PPC_GLOB_DAT: | |
3282 | case R_PPC_JMP_SLOT: | |
3283 | case R_PPC_RELATIVE: | |
3284 | break; | |
3285 | ||
3286 | /* These aren't handled yet. We'll report an error later. */ | |
3287 | case R_PPC_ADDR30: | |
3288 | case R_PPC_EMB_RELSEC16: | |
3289 | case R_PPC_EMB_RELST_LO: | |
3290 | case R_PPC_EMB_RELST_HI: | |
3291 | case R_PPC_EMB_RELST_HA: | |
3292 | case R_PPC_EMB_BIT_FLD: | |
252b5132 RH |
3293 | break; |
3294 | ||
ae9a127f | 3295 | /* This refers only to functions defined in the shared library. */ |
252b5132 RH |
3296 | case R_PPC_LOCAL24PC: |
3297 | break; | |
3298 | ||
3299 | /* This relocation describes the C++ object vtable hierarchy. | |
3300 | Reconstruct it for later use during GC. */ | |
3301 | case R_PPC_GNU_VTINHERIT: | |
3302 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
b34976b6 | 3303 | return FALSE; |
252b5132 RH |
3304 | break; |
3305 | ||
3306 | /* This relocation describes which C++ vtable entries are actually | |
3307 | used. Record for later use during GC. */ | |
3308 | case R_PPC_GNU_VTENTRY: | |
3309 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
b34976b6 | 3310 | return FALSE; |
252b5132 RH |
3311 | break; |
3312 | ||
7619e7c7 AM |
3313 | /* We shouldn't really be seeing these. */ |
3314 | case R_PPC_TPREL32: | |
3315 | if (info->shared) | |
3316 | info->flags |= DF_STATIC_TLS; | |
3317 | goto dodyn; | |
3318 | ||
3319 | /* Nor these. */ | |
3320 | case R_PPC_DTPMOD32: | |
3321 | case R_PPC_DTPREL32: | |
3322 | goto dodyn; | |
3323 | ||
3324 | case R_PPC_TPREL16: | |
3325 | case R_PPC_TPREL16_LO: | |
3326 | case R_PPC_TPREL16_HI: | |
3327 | case R_PPC_TPREL16_HA: | |
3328 | if (info->shared) | |
3329 | info->flags |= DF_STATIC_TLS; | |
3330 | goto dodyn; | |
3331 | ||
252b5132 RH |
3332 | /* When creating a shared object, we must copy these |
3333 | relocs into the output file. We create a reloc | |
3334 | section in dynobj and make room for the reloc. */ | |
3335 | case R_PPC_REL24: | |
3336 | case R_PPC_REL14: | |
3337 | case R_PPC_REL14_BRTAKEN: | |
3338 | case R_PPC_REL14_BRNTAKEN: | |
3339 | case R_PPC_REL32: | |
3340 | if (h == NULL | |
e1e0340b GK |
3341 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0 |
3342 | || SYMBOL_REFERENCES_LOCAL (info, h)) | |
252b5132 RH |
3343 | break; |
3344 | /* fall through */ | |
3345 | ||
7619e7c7 AM |
3346 | case R_PPC_ADDR32: |
3347 | case R_PPC_ADDR24: | |
3348 | case R_PPC_ADDR16: | |
3349 | case R_PPC_ADDR16_LO: | |
3350 | case R_PPC_ADDR16_HI: | |
3351 | case R_PPC_ADDR16_HA: | |
3352 | case R_PPC_ADDR14: | |
3353 | case R_PPC_ADDR14_BRTAKEN: | |
3354 | case R_PPC_ADDR14_BRNTAKEN: | |
3355 | case R_PPC_UADDR32: | |
3356 | case R_PPC_UADDR16: | |
3357 | if (h != NULL && !info->shared) | |
3358 | { | |
3359 | /* We may need a plt entry if the symbol turns out to be | |
3360 | a function defined in a dynamic object. */ | |
3361 | h->plt.refcount++; | |
3362 | ||
3363 | /* We may need a copy reloc too. */ | |
3364 | h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; | |
3365 | } | |
3366 | dodyn: | |
252b5132 RH |
3367 | if (info->shared) |
3368 | { | |
7fce784e AS |
3369 | struct ppc_elf_dyn_relocs *p; |
3370 | struct ppc_elf_dyn_relocs **head; | |
3371 | ||
252b5132 RH |
3372 | #ifdef DEBUG |
3373 | fprintf (stderr, "ppc_elf_check_relocs need to create relocation for %s\n", | |
3374 | (h && h->root.root.string) ? h->root.root.string : "<unknown>"); | |
3375 | #endif | |
3376 | if (sreloc == NULL) | |
3377 | { | |
3378 | const char *name; | |
3379 | ||
3380 | name = (bfd_elf_string_from_elf_section | |
3381 | (abfd, | |
3382 | elf_elfheader (abfd)->e_shstrndx, | |
3383 | elf_section_data (sec)->rel_hdr.sh_name)); | |
3384 | if (name == NULL) | |
b34976b6 | 3385 | return FALSE; |
252b5132 RH |
3386 | |
3387 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
3388 | && strcmp (bfd_get_section_name (abfd, sec), | |
3389 | name + 5) == 0); | |
3390 | ||
7619e7c7 | 3391 | sreloc = bfd_get_section_by_name (htab->elf.dynobj, name); |
252b5132 RH |
3392 | if (sreloc == NULL) |
3393 | { | |
3394 | flagword flags; | |
3395 | ||
7619e7c7 | 3396 | sreloc = bfd_make_section (htab->elf.dynobj, name); |
252b5132 RH |
3397 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
3398 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3399 | if ((sec->flags & SEC_ALLOC) != 0) | |
3400 | flags |= SEC_ALLOC | SEC_LOAD; | |
3401 | if (sreloc == NULL | |
7619e7c7 AM |
3402 | || ! bfd_set_section_flags (htab->elf.dynobj, |
3403 | sreloc, flags) | |
3404 | || ! bfd_set_section_alignment (htab->elf.dynobj, | |
3405 | sreloc, 2)) | |
b34976b6 | 3406 | return FALSE; |
252b5132 | 3407 | } |
7fce784e AS |
3408 | elf_section_data (sec)->sreloc = sreloc; |
3409 | } | |
3410 | ||
3411 | /* If this is a global symbol, we count the number of | |
3412 | relocations we need for this symbol. */ | |
3413 | if (h != NULL) | |
3414 | { | |
3415 | head = &ppc_elf_hash_entry (h)->dyn_relocs; | |
252b5132 | 3416 | } |
7fce784e AS |
3417 | else |
3418 | { | |
3419 | /* Track dynamic relocs needed for local syms too. | |
3420 | We really need local syms available to do this | |
3421 | easily. Oh well. */ | |
3422 | ||
3423 | asection *s; | |
3424 | s = (bfd_section_from_r_symndx | |
3425 | (abfd, &ppc_elf_hash_table (info)->sym_sec, | |
3426 | sec, r_symndx)); | |
3427 | if (s == NULL) | |
3428 | return FALSE; | |
252b5132 | 3429 | |
7fce784e AS |
3430 | head = ((struct ppc_elf_dyn_relocs **) |
3431 | &elf_section_data (s)->local_dynrel); | |
3432 | } | |
252b5132 | 3433 | |
7fce784e AS |
3434 | p = *head; |
3435 | if (p == NULL || p->sec != sec) | |
3436 | { | |
3437 | p = ((struct ppc_elf_dyn_relocs *) | |
7619e7c7 | 3438 | bfd_alloc (htab->elf.dynobj, sizeof *p)); |
7fce784e AS |
3439 | if (p == NULL) |
3440 | return FALSE; | |
3441 | p->next = *head; | |
3442 | *head = p; | |
3443 | p->sec = sec; | |
3444 | p->count = 0; | |
3445 | } | |
3446 | ||
3447 | p->count++; | |
252b5132 RH |
3448 | } |
3449 | ||
3450 | break; | |
3451 | } | |
3452 | } | |
3453 | ||
b34976b6 | 3454 | return TRUE; |
252b5132 RH |
3455 | } |
3456 | ||
3457 | /* Return the section that should be marked against GC for a given | |
3458 | relocation. */ | |
3459 | ||
3460 | static asection * | |
1e2f5b6e AM |
3461 | ppc_elf_gc_mark_hook (sec, info, rel, h, sym) |
3462 | asection *sec; | |
5f771d47 | 3463 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
3464 | Elf_Internal_Rela *rel; |
3465 | struct elf_link_hash_entry *h; | |
3466 | Elf_Internal_Sym *sym; | |
3467 | { | |
3468 | if (h != NULL) | |
3469 | { | |
3470 | switch (ELF32_R_TYPE (rel->r_info)) | |
3471 | { | |
3472 | case R_PPC_GNU_VTINHERIT: | |
3473 | case R_PPC_GNU_VTENTRY: | |
3474 | break; | |
3475 | ||
3476 | default: | |
3477 | switch (h->root.type) | |
3478 | { | |
3479 | case bfd_link_hash_defined: | |
3480 | case bfd_link_hash_defweak: | |
3481 | return h->root.u.def.section; | |
3482 | ||
3483 | case bfd_link_hash_common: | |
3484 | return h->root.u.c.p->section; | |
3485 | ||
3486 | default: | |
3487 | break; | |
3488 | } | |
3489 | } | |
3490 | } | |
3491 | else | |
1e2f5b6e | 3492 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
252b5132 RH |
3493 | |
3494 | return NULL; | |
3495 | } | |
3496 | ||
7619e7c7 AM |
3497 | /* Update the got, plt and dynamic reloc reference counts for the |
3498 | section being removed. */ | |
252b5132 | 3499 | |
b34976b6 | 3500 | static bfd_boolean |
252b5132 RH |
3501 | ppc_elf_gc_sweep_hook (abfd, info, sec, relocs) |
3502 | bfd *abfd; | |
7619e7c7 | 3503 | struct bfd_link_info *info; |
252b5132 RH |
3504 | asection *sec; |
3505 | const Elf_Internal_Rela *relocs; | |
3506 | { | |
7619e7c7 | 3507 | struct ppc_elf_link_hash_table *htab; |
252b5132 RH |
3508 | Elf_Internal_Shdr *symtab_hdr; |
3509 | struct elf_link_hash_entry **sym_hashes; | |
3510 | bfd_signed_vma *local_got_refcounts; | |
3511 | const Elf_Internal_Rela *rel, *relend; | |
252b5132 | 3512 | |
7fce784e AS |
3513 | elf_section_data (sec)->local_dynrel = NULL; |
3514 | ||
7619e7c7 | 3515 | htab = ppc_elf_hash_table (info); |
252b5132 RH |
3516 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
3517 | sym_hashes = elf_sym_hashes (abfd); | |
3518 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
3519 | ||
3520 | relend = relocs + sec->reloc_count; | |
3521 | for (rel = relocs; rel < relend; rel++) | |
7619e7c7 AM |
3522 | { |
3523 | unsigned long r_symndx; | |
3524 | enum elf_ppc_reloc_type r_type; | |
3525 | struct elf_link_hash_entry *h = NULL; | |
252b5132 | 3526 | |
7619e7c7 AM |
3527 | r_symndx = ELF32_R_SYM (rel->r_info); |
3528 | if (r_symndx >= symtab_hdr->sh_info) | |
3529 | { | |
3530 | struct ppc_elf_dyn_relocs **pp, *p; | |
3531 | struct ppc_elf_link_hash_entry *eh; | |
3532 | ||
3533 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
3534 | eh = (struct ppc_elf_link_hash_entry *) h; | |
3535 | ||
3536 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
3537 | if (p->sec == sec) | |
3538 | { | |
3539 | /* Everything must go for SEC. */ | |
3540 | *pp = p->next; | |
3541 | break; | |
3542 | } | |
3543 | } | |
3544 | ||
3545 | r_type = (enum elf_ppc_reloc_type) ELF32_R_TYPE (rel->r_info); | |
3546 | switch (r_type) | |
3547 | { | |
3548 | case R_PPC_GOT_TLSLD16: | |
3549 | case R_PPC_GOT_TLSLD16_LO: | |
3550 | case R_PPC_GOT_TLSLD16_HI: | |
3551 | case R_PPC_GOT_TLSLD16_HA: | |
3552 | htab->tlsld_got.refcount -= 1; | |
3553 | /* Fall thru */ | |
3554 | ||
3555 | case R_PPC_GOT_TLSGD16: | |
3556 | case R_PPC_GOT_TLSGD16_LO: | |
3557 | case R_PPC_GOT_TLSGD16_HI: | |
3558 | case R_PPC_GOT_TLSGD16_HA: | |
3559 | case R_PPC_GOT_TPREL16: | |
3560 | case R_PPC_GOT_TPREL16_LO: | |
3561 | case R_PPC_GOT_TPREL16_HI: | |
3562 | case R_PPC_GOT_TPREL16_HA: | |
3563 | case R_PPC_GOT_DTPREL16: | |
3564 | case R_PPC_GOT_DTPREL16_LO: | |
3565 | case R_PPC_GOT_DTPREL16_HI: | |
3566 | case R_PPC_GOT_DTPREL16_HA: | |
3567 | case R_PPC_GOT16: | |
3568 | case R_PPC_GOT16_LO: | |
3569 | case R_PPC_GOT16_HI: | |
3570 | case R_PPC_GOT16_HA: | |
3571 | if (h != NULL) | |
3572 | { | |
3573 | if (h->got.refcount > 0) | |
3574 | h->got.refcount--; | |
3575 | } | |
3576 | else if (local_got_refcounts != NULL) | |
3577 | { | |
3578 | if (local_got_refcounts[r_symndx] > 0) | |
3579 | local_got_refcounts[r_symndx]--; | |
3580 | } | |
3581 | break; | |
3582 | ||
3583 | case R_PPC_REL24: | |
3584 | case R_PPC_REL14: | |
3585 | case R_PPC_REL14_BRTAKEN: | |
3586 | case R_PPC_REL14_BRNTAKEN: | |
3587 | case R_PPC_REL32: | |
3588 | if (h == NULL | |
3589 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0 | |
3590 | || SYMBOL_REFERENCES_LOCAL (info, h)) | |
3591 | break; | |
3592 | /* Fall thru */ | |
3593 | ||
3594 | case R_PPC_ADDR32: | |
3595 | case R_PPC_ADDR24: | |
3596 | case R_PPC_ADDR16: | |
3597 | case R_PPC_ADDR16_LO: | |
3598 | case R_PPC_ADDR16_HI: | |
3599 | case R_PPC_ADDR16_HA: | |
3600 | case R_PPC_ADDR14: | |
3601 | case R_PPC_ADDR14_BRTAKEN: | |
3602 | case R_PPC_ADDR14_BRNTAKEN: | |
3603 | case R_PPC_UADDR32: | |
3604 | case R_PPC_UADDR16: | |
3605 | case R_PPC_PLT32: | |
3606 | case R_PPC_PLTREL24: | |
3607 | case R_PPC_PLT16_LO: | |
3608 | case R_PPC_PLT16_HI: | |
3609 | case R_PPC_PLT16_HA: | |
3610 | if (h != NULL) | |
3611 | { | |
3612 | if (h->plt.refcount > 0) | |
3613 | h->plt.refcount--; | |
3614 | } | |
3615 | break; | |
3616 | ||
3617 | default: | |
3618 | break; | |
3619 | } | |
3620 | } | |
3621 | return TRUE; | |
3622 | } | |
3623 | ||
3624 | /* Set htab->tls_sec and htab->tls_get_addr. */ | |
3625 | ||
3626 | bfd_boolean | |
3627 | ppc_elf_tls_setup (obfd, info) | |
3628 | bfd *obfd; | |
3629 | struct bfd_link_info *info; | |
3630 | { | |
3631 | asection *tls; | |
3632 | struct ppc_elf_link_hash_table *htab; | |
3633 | ||
3634 | htab = ppc_elf_hash_table (info); | |
3635 | htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", | |
3636 | FALSE, FALSE, TRUE); | |
3637 | ||
3638 | for (tls = obfd->sections; tls != NULL; tls = tls->next) | |
3639 | if ((tls->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) | |
3640 | == (SEC_THREAD_LOCAL | SEC_LOAD)) | |
3641 | break; | |
3642 | htab->tls_sec = tls; | |
3643 | ||
3644 | return tls != NULL; | |
3645 | } | |
3646 | ||
3647 | /* Run through all the TLS relocs looking for optimization | |
3648 | opportunities. */ | |
3649 | ||
3650 | bfd_boolean | |
3651 | ppc_elf_tls_optimize (obfd, info) | |
3652 | bfd *obfd ATTRIBUTE_UNUSED; | |
3653 | struct bfd_link_info *info; | |
3654 | { | |
3655 | bfd *ibfd; | |
3656 | asection *sec; | |
3657 | struct ppc_elf_link_hash_table *htab; | |
3658 | ||
3659 | if (info->relocateable || info->shared) | |
3660 | return TRUE; | |
3661 | ||
3662 | htab = ppc_elf_hash_table (info); | |
3663 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
3664 | { | |
3665 | Elf_Internal_Sym *locsyms = NULL; | |
3666 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
3667 | ||
3668 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
3669 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
7fce784e | 3670 | { |
7619e7c7 AM |
3671 | Elf_Internal_Rela *relstart, *rel, *relend; |
3672 | int expecting_tls_get_addr; | |
3673 | ||
3674 | /* Read the relocations. */ | |
3675 | relstart = _bfd_elf32_link_read_relocs (ibfd, sec, (PTR) NULL, | |
3676 | (Elf_Internal_Rela *) NULL, | |
3677 | info->keep_memory); | |
3678 | if (relstart == NULL) | |
3679 | return FALSE; | |
3680 | ||
3681 | expecting_tls_get_addr = 0; | |
3682 | relend = relstart + sec->reloc_count; | |
3683 | for (rel = relstart; rel < relend; rel++) | |
3684 | { | |
3685 | enum elf_ppc_reloc_type r_type; | |
3686 | unsigned long r_symndx; | |
3687 | struct elf_link_hash_entry *h = NULL; | |
3688 | char *tls_mask; | |
3689 | char tls_set, tls_clear; | |
3690 | bfd_boolean is_local; | |
3691 | ||
3692 | r_symndx = ELF32_R_SYM (rel->r_info); | |
3693 | if (r_symndx >= symtab_hdr->sh_info) | |
3694 | { | |
3695 | struct elf_link_hash_entry **sym_hashes; | |
7fce784e | 3696 | |
7619e7c7 AM |
3697 | sym_hashes = elf_sym_hashes (ibfd); |
3698 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
3699 | while (h->root.type == bfd_link_hash_indirect | |
3700 | || h->root.type == bfd_link_hash_warning) | |
3701 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3702 | } | |
7fce784e | 3703 | |
7619e7c7 AM |
3704 | is_local = FALSE; |
3705 | if (h == NULL | |
3706 | || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)) | |
3707 | is_local = TRUE; | |
3708 | ||
3709 | r_type = (enum elf_ppc_reloc_type) ELF32_R_TYPE (rel->r_info); | |
3710 | switch (r_type) | |
3711 | { | |
3712 | case R_PPC_GOT_TLSLD16: | |
3713 | case R_PPC_GOT_TLSLD16_LO: | |
3714 | case R_PPC_GOT_TLSLD16_HI: | |
3715 | case R_PPC_GOT_TLSLD16_HA: | |
3716 | /* These relocs should never be against a symbol | |
3717 | defined in a shared lib. Leave them alone if | |
3718 | that turns out to be the case. */ | |
3719 | expecting_tls_get_addr = 0; | |
3720 | htab->tlsld_got.refcount -= 1; | |
3721 | if (!is_local) | |
3722 | continue; | |
3723 | ||
3724 | /* LD -> LE */ | |
3725 | tls_set = 0; | |
3726 | tls_clear = TLS_LD; | |
3727 | expecting_tls_get_addr = 1; | |
3728 | break; | |
3729 | ||
3730 | case R_PPC_GOT_TLSGD16: | |
3731 | case R_PPC_GOT_TLSGD16_LO: | |
3732 | case R_PPC_GOT_TLSGD16_HI: | |
3733 | case R_PPC_GOT_TLSGD16_HA: | |
3734 | if (is_local) | |
3735 | /* GD -> LE */ | |
3736 | tls_set = 0; | |
3737 | else | |
3738 | /* GD -> IE */ | |
3739 | tls_set = TLS_TLS | TLS_TPRELGD; | |
3740 | tls_clear = TLS_GD; | |
3741 | expecting_tls_get_addr = 1; | |
3742 | break; | |
3743 | ||
3744 | case R_PPC_GOT_TPREL16: | |
3745 | case R_PPC_GOT_TPREL16_LO: | |
3746 | case R_PPC_GOT_TPREL16_HI: | |
3747 | case R_PPC_GOT_TPREL16_HA: | |
3748 | expecting_tls_get_addr = 0; | |
3749 | if (is_local) | |
3750 | { | |
3751 | /* IE -> LE */ | |
3752 | tls_set = 0; | |
3753 | tls_clear = TLS_TPREL; | |
3754 | break; | |
3755 | } | |
3756 | else | |
3757 | continue; | |
3758 | ||
3759 | case R_PPC_REL14: | |
3760 | case R_PPC_REL14_BRTAKEN: | |
3761 | case R_PPC_REL14_BRNTAKEN: | |
3762 | case R_PPC_REL24: | |
3763 | if (expecting_tls_get_addr | |
3764 | && h != NULL | |
3765 | && h == htab->tls_get_addr) | |
3766 | { | |
3767 | if (h->plt.refcount > 0) | |
3768 | h->plt.refcount -= 1; | |
3769 | } | |
3770 | expecting_tls_get_addr = 0; | |
3771 | continue; | |
3772 | ||
3773 | default: | |
3774 | expecting_tls_get_addr = 0; | |
3775 | continue; | |
3776 | } | |
3777 | ||
3778 | if (h != NULL) | |
3779 | { | |
3780 | if (tls_set == 0) | |
3781 | { | |
3782 | /* We managed to get rid of a got entry. */ | |
3783 | if (h->got.refcount > 0) | |
3784 | h->got.refcount -= 1; | |
3785 | } | |
3786 | tls_mask = &ppc_elf_hash_entry (h)->tls_mask; | |
3787 | } | |
3788 | else | |
3789 | { | |
3790 | Elf_Internal_Sym *sym; | |
3791 | bfd_signed_vma *lgot_refs; | |
3792 | char *lgot_masks; | |
3793 | ||
3794 | if (locsyms == NULL) | |
3795 | { | |
3796 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
3797 | if (locsyms == NULL) | |
3798 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
3799 | symtab_hdr->sh_info, | |
3800 | 0, NULL, NULL, NULL); | |
3801 | if (locsyms == NULL) | |
3802 | { | |
3803 | if (elf_section_data (sec)->relocs != relstart) | |
3804 | free (relstart); | |
3805 | return FALSE; | |
3806 | } | |
3807 | } | |
3808 | sym = locsyms + r_symndx; | |
3809 | lgot_refs = elf_local_got_refcounts (ibfd); | |
3810 | if (lgot_refs == NULL) | |
3811 | abort (); | |
3812 | if (tls_set == 0) | |
3813 | { | |
3814 | /* We managed to get rid of a got entry. */ | |
3815 | if (lgot_refs[r_symndx] > 0) | |
3816 | lgot_refs[r_symndx] -= 1; | |
3817 | } | |
3818 | lgot_masks = (char *) (lgot_refs + symtab_hdr->sh_info); | |
3819 | tls_mask = &lgot_masks[r_symndx]; | |
3820 | } | |
3821 | ||
3822 | *tls_mask |= tls_set; | |
3823 | *tls_mask &= ~tls_clear; | |
3824 | } | |
3825 | ||
3826 | if (elf_section_data (sec)->relocs != relstart) | |
3827 | free (relstart); | |
7fce784e | 3828 | } |
252b5132 | 3829 | |
7619e7c7 AM |
3830 | if (locsyms != NULL |
3831 | && (symtab_hdr->contents != (unsigned char *) locsyms)) | |
3832 | { | |
3833 | if (!info->keep_memory) | |
3834 | free (locsyms); | |
3835 | else | |
3836 | symtab_hdr->contents = (unsigned char *) locsyms; | |
3837 | } | |
3838 | } | |
b34976b6 | 3839 | return TRUE; |
252b5132 RH |
3840 | } |
3841 | \f | |
3842 | /* Hook called by the linker routine which adds symbols from an object | |
3843 | file. We use it to put .comm items in .sbss, and not .bss. */ | |
3844 | ||
b34976b6 | 3845 | static bfd_boolean |
252b5132 RH |
3846 | ppc_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) |
3847 | bfd *abfd; | |
3848 | struct bfd_link_info *info; | |
3849 | const Elf_Internal_Sym *sym; | |
5f771d47 ILT |
3850 | const char **namep ATTRIBUTE_UNUSED; |
3851 | flagword *flagsp ATTRIBUTE_UNUSED; | |
252b5132 RH |
3852 | asection **secp; |
3853 | bfd_vma *valp; | |
3854 | { | |
3855 | if (sym->st_shndx == SHN_COMMON | |
3856 | && !info->relocateable | |
27242387 AM |
3857 | && sym->st_size <= elf_gp_size (abfd) |
3858 | && info->hash->creator->flavour == bfd_target_elf_flavour) | |
252b5132 RH |
3859 | { |
3860 | /* Common symbols less than or equal to -G nn bytes are automatically | |
3861 | put into .sdata. */ | |
3862 | elf_linker_section_t *sdata | |
3863 | = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_SDATA); | |
3864 | ||
3865 | if (!sdata->bss_section) | |
3866 | { | |
dc810e39 AM |
3867 | bfd_size_type amt; |
3868 | ||
252b5132 RH |
3869 | /* We don't go through bfd_make_section, because we don't |
3870 | want to attach this common section to DYNOBJ. The linker | |
3871 | will move the symbols to the appropriate output section | |
3872 | when it defines common symbols. */ | |
dc810e39 AM |
3873 | amt = sizeof (asection); |
3874 | sdata->bss_section = (asection *) bfd_zalloc (abfd, amt); | |
252b5132 | 3875 | if (sdata->bss_section == NULL) |
b34976b6 | 3876 | return FALSE; |
252b5132 RH |
3877 | sdata->bss_section->name = sdata->bss_name; |
3878 | sdata->bss_section->flags = SEC_IS_COMMON; | |
3879 | sdata->bss_section->output_section = sdata->bss_section; | |
dc810e39 AM |
3880 | amt = sizeof (asymbol); |
3881 | sdata->bss_section->symbol = (asymbol *) bfd_zalloc (abfd, amt); | |
3882 | amt = sizeof (asymbol *); | |
252b5132 | 3883 | sdata->bss_section->symbol_ptr_ptr = |
dc810e39 | 3884 | (asymbol **) bfd_zalloc (abfd, amt); |
252b5132 RH |
3885 | if (sdata->bss_section->symbol == NULL |
3886 | || sdata->bss_section->symbol_ptr_ptr == NULL) | |
b34976b6 | 3887 | return FALSE; |
252b5132 RH |
3888 | sdata->bss_section->symbol->name = sdata->bss_name; |
3889 | sdata->bss_section->symbol->flags = BSF_SECTION_SYM; | |
3890 | sdata->bss_section->symbol->section = sdata->bss_section; | |
3891 | *sdata->bss_section->symbol_ptr_ptr = sdata->bss_section->symbol; | |
3892 | } | |
3893 | ||
3894 | *secp = sdata->bss_section; | |
3895 | *valp = sym->st_size; | |
3896 | } | |
3897 | ||
b34976b6 | 3898 | return TRUE; |
252b5132 | 3899 | } |
252b5132 RH |
3900 | \f |
3901 | /* Finish up dynamic symbol handling. We set the contents of various | |
3902 | dynamic sections here. */ | |
3903 | ||
b34976b6 | 3904 | static bfd_boolean |
252b5132 RH |
3905 | ppc_elf_finish_dynamic_symbol (output_bfd, info, h, sym) |
3906 | bfd *output_bfd; | |
3907 | struct bfd_link_info *info; | |
3908 | struct elf_link_hash_entry *h; | |
3909 | Elf_Internal_Sym *sym; | |
3910 | { | |
7619e7c7 | 3911 | struct ppc_elf_link_hash_table *htab; |
252b5132 RH |
3912 | |
3913 | #ifdef DEBUG | |
3914 | fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s", | |
3915 | h->root.root.string); | |
3916 | #endif | |
3917 | ||
7619e7c7 AM |
3918 | htab = ppc_elf_hash_table (info); |
3919 | BFD_ASSERT (htab->elf.dynobj != NULL); | |
252b5132 RH |
3920 | |
3921 | if (h->plt.offset != (bfd_vma) -1) | |
3922 | { | |
252b5132 | 3923 | Elf_Internal_Rela rela; |
947216bf | 3924 | bfd_byte *loc; |
252b5132 RH |
3925 | bfd_vma reloc_index; |
3926 | ||
3927 | #ifdef DEBUG | |
3928 | fprintf (stderr, ", plt_offset = %d", h->plt.offset); | |
3929 | #endif | |
3930 | ||
3931 | /* This symbol has an entry in the procedure linkage table. Set | |
3932 | it up. */ | |
3933 | ||
3934 | BFD_ASSERT (h->dynindx != -1); | |
7619e7c7 | 3935 | BFD_ASSERT (htab->plt != NULL && htab->relplt != NULL); |
252b5132 RH |
3936 | |
3937 | /* We don't need to fill in the .plt. The ppc dynamic linker | |
3938 | will fill it in. */ | |
3939 | ||
3940 | /* Fill in the entry in the .rela.plt section. */ | |
7619e7c7 AM |
3941 | rela.r_offset = (htab->plt->output_section->vma |
3942 | + htab->plt->output_offset | |
252b5132 RH |
3943 | + h->plt.offset); |
3944 | rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT); | |
3945 | rela.r_addend = 0; | |
3946 | ||
3947 | reloc_index = (h->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_SLOT_SIZE; | |
3948 | if (reloc_index > PLT_NUM_SINGLE_ENTRIES) | |
3949 | reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2; | |
7619e7c7 AM |
3950 | loc = (htab->relplt->contents |
3951 | + reloc_index * sizeof (Elf32_External_Rela)); | |
947216bf | 3952 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
252b5132 RH |
3953 | |
3954 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
3955 | { | |
3956 | /* Mark the symbol as undefined, rather than as defined in | |
3957 | the .plt section. Leave the value alone. */ | |
3958 | sym->st_shndx = SHN_UNDEF; | |
a4b120e1 GK |
3959 | /* If the symbol is weak, we do need to clear the value. |
3960 | Otherwise, the PLT entry would provide a definition for | |
3961 | the symbol even if the symbol wasn't defined anywhere, | |
3962 | and so the symbol would never be NULL. */ | |
c3668558 | 3963 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR_NONWEAK) |
a4b120e1 GK |
3964 | == 0) |
3965 | sym->st_value = 0; | |
252b5132 RH |
3966 | } |
3967 | } | |
3968 | ||
252b5132 RH |
3969 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) |
3970 | { | |
3971 | asection *s; | |
3972 | Elf_Internal_Rela rela; | |
947216bf | 3973 | bfd_byte *loc; |
252b5132 RH |
3974 | |
3975 | /* This symbols needs a copy reloc. Set it up. */ | |
3976 | ||
3977 | #ifdef DEBUG | |
3978 | fprintf (stderr, ", copy"); | |
3979 | #endif | |
3980 | ||
3981 | BFD_ASSERT (h->dynindx != -1); | |
3982 | ||
7619e7c7 AM |
3983 | if (h->size <= elf_gp_size (htab->elf.dynobj)) |
3984 | s = htab->relsbss; | |
252b5132 | 3985 | else |
7619e7c7 | 3986 | s = htab->relbss; |
252b5132 RH |
3987 | BFD_ASSERT (s != NULL); |
3988 | ||
3989 | rela.r_offset = (h->root.u.def.value | |
3990 | + h->root.u.def.section->output_section->vma | |
3991 | + h->root.u.def.section->output_offset); | |
3992 | rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY); | |
3993 | rela.r_addend = 0; | |
947216bf AM |
3994 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); |
3995 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
252b5132 RH |
3996 | } |
3997 | ||
3998 | #ifdef DEBUG | |
3999 | fprintf (stderr, "\n"); | |
4000 | #endif | |
4001 | ||
4002 | /* Mark some specially defined symbols as absolute. */ | |
4003 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
4004 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0 | |
4005 | || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0) | |
4006 | sym->st_shndx = SHN_ABS; | |
4007 | ||
b34976b6 | 4008 | return TRUE; |
252b5132 | 4009 | } |
252b5132 RH |
4010 | \f |
4011 | /* Finish up the dynamic sections. */ | |
4012 | ||
b34976b6 | 4013 | static bfd_boolean |
252b5132 RH |
4014 | ppc_elf_finish_dynamic_sections (output_bfd, info) |
4015 | bfd *output_bfd; | |
4016 | struct bfd_link_info *info; | |
4017 | { | |
4018 | asection *sdyn; | |
7619e7c7 | 4019 | struct ppc_elf_link_hash_table *htab; |
252b5132 RH |
4020 | |
4021 | #ifdef DEBUG | |
4022 | fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n"); | |
4023 | #endif | |
4024 | ||
7619e7c7 AM |
4025 | htab = ppc_elf_hash_table (info); |
4026 | sdyn = bfd_get_section_by_name (htab->elf.dynobj, ".dynamic"); | |
252b5132 | 4027 | |
7619e7c7 | 4028 | if (htab->elf.dynamic_sections_created) |
252b5132 | 4029 | { |
252b5132 RH |
4030 | Elf32_External_Dyn *dyncon, *dynconend; |
4031 | ||
7619e7c7 | 4032 | BFD_ASSERT (htab->plt != NULL && sdyn != NULL); |
252b5132 RH |
4033 | |
4034 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
4035 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
4036 | for (; dyncon < dynconend; dyncon++) | |
4037 | { | |
4038 | Elf_Internal_Dyn dyn; | |
7619e7c7 | 4039 | asection *s; |
252b5132 | 4040 | |
7619e7c7 | 4041 | bfd_elf32_swap_dyn_in (htab->elf.dynobj, dyncon, &dyn); |
252b5132 RH |
4042 | |
4043 | switch (dyn.d_tag) | |
4044 | { | |
7619e7c7 AM |
4045 | case DT_PLTGOT: |
4046 | s = htab->plt; | |
4047 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
4048 | break; | |
252b5132 | 4049 | |
7619e7c7 AM |
4050 | case DT_PLTRELSZ: |
4051 | dyn.d_un.d_val = htab->relplt->_raw_size; | |
4052 | break; | |
252b5132 | 4053 | |
7619e7c7 AM |
4054 | case DT_JMPREL: |
4055 | s = htab->relplt; | |
4056 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
4057 | break; | |
4058 | ||
4059 | default: | |
4060 | continue; | |
252b5132 | 4061 | } |
7619e7c7 AM |
4062 | |
4063 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
252b5132 RH |
4064 | } |
4065 | } | |
4066 | ||
4067 | /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 so that a function can | |
4068 | easily find the address of the _GLOBAL_OFFSET_TABLE_. */ | |
7619e7c7 | 4069 | if (htab->got) |
252b5132 | 4070 | { |
7619e7c7 | 4071 | unsigned char *contents = htab->got->contents; |
dc810e39 | 4072 | bfd_put_32 (output_bfd, (bfd_vma) 0x4e800021 /* blrl */, contents); |
252b5132 RH |
4073 | |
4074 | if (sdyn == NULL) | |
7619e7c7 | 4075 | bfd_put_32 (output_bfd, (bfd_vma) 0, contents + 4); |
252b5132 RH |
4076 | else |
4077 | bfd_put_32 (output_bfd, | |
4078 | sdyn->output_section->vma + sdyn->output_offset, | |
7619e7c7 | 4079 | contents + 4); |
252b5132 | 4080 | |
7619e7c7 | 4081 | elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4; |
252b5132 RH |
4082 | } |
4083 | ||
b34976b6 | 4084 | return TRUE; |
252b5132 | 4085 | } |
252b5132 RH |
4086 | \f |
4087 | /* The RELOCATE_SECTION function is called by the ELF backend linker | |
4088 | to handle the relocations for a section. | |
4089 | ||
4090 | The relocs are always passed as Rela structures; if the section | |
4091 | actually uses Rel structures, the r_addend field will always be | |
4092 | zero. | |
4093 | ||
4094 | This function is responsible for adjust the section contents as | |
4095 | necessary, and (if using Rela relocs and generating a | |
4096 | relocateable output file) adjusting the reloc addend as | |
4097 | necessary. | |
4098 | ||
4099 | This function does not have to worry about setting the reloc | |
4100 | address or the reloc symbol index. | |
4101 | ||
4102 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
4103 | ||
4104 | LOCAL_SECTIONS is an array giving the section in the input file | |
4105 | corresponding to the st_shndx field of each local symbol. | |
4106 | ||
4107 | The global hash table entry for the global symbols can be found | |
4108 | via elf_sym_hashes (input_bfd). | |
4109 | ||
4110 | When generating relocateable output, this function must handle | |
4111 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is | |
4112 | going to be the section symbol corresponding to the output | |
4113 | section, which means that the addend must be adjusted | |
4114 | accordingly. */ | |
4115 | ||
b34976b6 | 4116 | static bfd_boolean |
252b5132 RH |
4117 | ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section, |
4118 | contents, relocs, local_syms, local_sections) | |
4119 | bfd *output_bfd; | |
4120 | struct bfd_link_info *info; | |
4121 | bfd *input_bfd; | |
4122 | asection *input_section; | |
4123 | bfd_byte *contents; | |
4124 | Elf_Internal_Rela *relocs; | |
4125 | Elf_Internal_Sym *local_syms; | |
4126 | asection **local_sections; | |
4127 | { | |
7619e7c7 AM |
4128 | Elf_Internal_Shdr *symtab_hdr; |
4129 | struct elf_link_hash_entry **sym_hashes; | |
4130 | struct ppc_elf_link_hash_table *htab; | |
4131 | Elf_Internal_Rela *rel; | |
4132 | Elf_Internal_Rela *relend; | |
4133 | Elf_Internal_Rela outrel; | |
4134 | bfd_byte *loc; | |
b34976b6 | 4135 | asection *sreloc = NULL; |
252b5132 | 4136 | bfd_vma *local_got_offsets; |
b34976b6 | 4137 | bfd_boolean ret = TRUE; |
b34976b6 | 4138 | |
252b5132 RH |
4139 | #ifdef DEBUG |
4140 | fprintf (stderr, "ppc_elf_relocate_section called for %s section %s, %ld relocations%s\n", | |
8f615d07 | 4141 | bfd_archive_filename (input_bfd), |
252b5132 | 4142 | bfd_section_name(input_bfd, input_section), |
8da6118f | 4143 | (long) input_section->reloc_count, |
252b5132 RH |
4144 | (info->relocateable) ? " (relocatable)" : ""); |
4145 | #endif | |
4146 | ||
b491616a | 4147 | if (info->relocateable) |
b34976b6 | 4148 | return TRUE; |
b491616a | 4149 | |
8da6118f KH |
4150 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) |
4151 | /* Initialize howto table if needed. */ | |
252b5132 RH |
4152 | ppc_elf_howto_init (); |
4153 | ||
7619e7c7 | 4154 | htab = ppc_elf_hash_table (info); |
252b5132 | 4155 | local_got_offsets = elf_local_got_offsets (input_bfd); |
7619e7c7 AM |
4156 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
4157 | sym_hashes = elf_sym_hashes (input_bfd); | |
4158 | rel = relocs; | |
4159 | relend = relocs + input_section->reloc_count; | |
252b5132 RH |
4160 | for (; rel < relend; rel++) |
4161 | { | |
7619e7c7 AM |
4162 | enum elf_ppc_reloc_type r_type; |
4163 | bfd_vma addend; | |
4164 | bfd_reloc_status_type r; | |
4165 | Elf_Internal_Sym *sym; | |
4166 | asection *sec; | |
4167 | struct elf_link_hash_entry *h; | |
4168 | const char *sym_name; | |
252b5132 RH |
4169 | reloc_howto_type *howto; |
4170 | unsigned long r_symndx; | |
4171 | bfd_vma relocation; | |
7619e7c7 AM |
4172 | bfd_vma branch_bit, insn, from; |
4173 | bfd_boolean will_become_local; | |
4174 | bfd_boolean unresolved_reloc; | |
4175 | bfd_boolean warned; | |
4176 | unsigned int tls_type, tls_mask, tls_gd; | |
4177 | ||
4178 | r_type = (enum elf_ppc_reloc_type)ELF32_R_TYPE (rel->r_info); | |
4179 | sym = (Elf_Internal_Sym *) 0; | |
4180 | sec = (asection *) 0; | |
4181 | h = (struct elf_link_hash_entry *) 0; | |
4182 | unresolved_reloc = FALSE; | |
4183 | warned = FALSE; | |
252b5132 | 4184 | r_symndx = ELF32_R_SYM (rel->r_info); |
252b5132 RH |
4185 | if (r_symndx < symtab_hdr->sh_info) |
4186 | { | |
4187 | sym = local_syms + r_symndx; | |
4188 | sec = local_sections[r_symndx]; | |
7619e7c7 | 4189 | sym_name = bfd_elf_local_sym_name (input_bfd, sym); |
252b5132 | 4190 | |
f8df10f4 | 4191 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel); |
e1e0340b | 4192 | /* Relocs to local symbols are always resolved. */ |
7619e7c7 | 4193 | will_become_local = TRUE; |
252b5132 RH |
4194 | } |
4195 | else | |
4196 | { | |
4197 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4198 | while (h->root.type == bfd_link_hash_indirect | |
4199 | || h->root.type == bfd_link_hash_warning) | |
4200 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4201 | sym_name = h->root.root.string; | |
e1e0340b GK |
4202 | |
4203 | /* Can this relocation be resolved immediately? */ | |
4204 | will_become_local = SYMBOL_REFERENCES_LOCAL (info, h); | |
7619e7c7 | 4205 | relocation = 0; |
252b5132 RH |
4206 | if (h->root.type == bfd_link_hash_defined |
4207 | || h->root.type == bfd_link_hash_defweak) | |
4208 | { | |
4209 | sec = h->root.u.def.section; | |
7619e7c7 AM |
4210 | /* Set a flag that will be cleared later if we find a |
4211 | relocation value for this symbol. output_section | |
4212 | is typically NULL for symbols satisfied by a shared | |
4213 | library. */ | |
4214 | if (sec->output_section == NULL) | |
4215 | unresolved_reloc = TRUE; | |
252b5132 RH |
4216 | else |
4217 | relocation = (h->root.u.def.value | |
4218 | + sec->output_section->vma | |
4219 | + sec->output_offset); | |
4220 | } | |
4221 | else if (h->root.type == bfd_link_hash_undefweak) | |
7619e7c7 | 4222 | ; |
671bae9c | 4223 | else if (info->shared |
671bae9c | 4224 | && !info->no_undefined |
3a27a730 | 4225 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) |
7619e7c7 | 4226 | ; |
252b5132 RH |
4227 | else |
4228 | { | |
7619e7c7 AM |
4229 | if (! ((*info->callbacks->undefined_symbol) |
4230 | (info, h->root.root.string, input_bfd, input_section, | |
4231 | rel->r_offset, (!info->shared | |
4232 | || info->no_undefined | |
4233 | || ELF_ST_VISIBILITY (h->other))))) | |
b34976b6 | 4234 | return FALSE; |
7619e7c7 AM |
4235 | warned = TRUE; |
4236 | } | |
4237 | } | |
4238 | ||
4239 | /* TLS optimizations. Replace instruction sequences and relocs | |
4240 | based on information we collected in tls_optimize. We edit | |
4241 | RELOCS so that --emit-relocs will output something sensible | |
4242 | for the final instruction stream. */ | |
4243 | tls_mask = 0; | |
4244 | tls_gd = 0; | |
4245 | if (IS_PPC_TLS_RELOC (r_type)) | |
4246 | { | |
4247 | if (h != NULL) | |
4248 | tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask; | |
4249 | else if (local_got_offsets != NULL) | |
4250 | { | |
4251 | char *lgot_masks; | |
4252 | lgot_masks = (char *) (local_got_offsets + symtab_hdr->sh_info); | |
4253 | tls_mask = lgot_masks[r_symndx]; | |
4254 | } | |
4255 | } | |
4256 | ||
4257 | /* Ensure reloc mapping code below stays sane. */ | |
4258 | if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3) | |
4259 | || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3) | |
4260 | || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3) | |
4261 | || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3) | |
4262 | || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3) | |
4263 | || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3) | |
4264 | || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3) | |
4265 | || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3)) | |
4266 | abort (); | |
4267 | switch (r_type) | |
4268 | { | |
4269 | default: | |
4270 | break; | |
4271 | ||
4272 | case R_PPC_GOT_TPREL16: | |
4273 | case R_PPC_GOT_TPREL16_LO: | |
4274 | if (tls_mask != 0 | |
4275 | && (tls_mask & TLS_TPREL) == 0) | |
4276 | { | |
4277 | bfd_vma insn; | |
4278 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2); | |
4279 | insn &= 31 << 21; | |
4280 | insn |= 0x3c020000; /* addis 0,2,0 */ | |
4281 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2); | |
4282 | r_type = R_PPC_TPREL16_HA; | |
4283 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
4284 | } | |
4285 | break; | |
4286 | ||
4287 | case R_PPC_TLS: | |
4288 | if (tls_mask != 0 | |
4289 | && (tls_mask & TLS_TPREL) == 0) | |
4290 | { | |
4291 | bfd_vma insn, rtra; | |
4292 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); | |
4293 | if ((insn & ((31 << 26) | (31 << 11))) | |
4294 | == ((31 << 26) | (2 << 11))) | |
4295 | rtra = insn & ((1 << 26) - (1 << 16)); | |
4296 | else if ((insn & ((31 << 26) | (31 << 16))) | |
4297 | == ((31 << 26) | (2 << 16))) | |
4298 | rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5); | |
4299 | else | |
4300 | abort (); | |
4301 | if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1) | |
4302 | /* add -> addi. */ | |
4303 | insn = 14 << 26; | |
4304 | else if ((insn & (31 << 1)) == 23 << 1 | |
4305 | && ((insn & (31 << 6)) < 14 << 6 | |
4306 | || ((insn & (31 << 6)) >= 16 << 6 | |
4307 | && (insn & (31 << 6)) < 24 << 6))) | |
4308 | /* load and store indexed -> dform. */ | |
4309 | insn = (32 | ((insn >> 6) & 31)) << 26; | |
4310 | else if ((insn & (31 << 1)) == 21 << 1 | |
4311 | && (insn & (0x1a << 6)) == 0) | |
4312 | /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */ | |
4313 | insn = (((58 | ((insn >> 6) & 4)) << 26) | |
4314 | | ((insn >> 6) & 1)); | |
4315 | else if ((insn & (31 << 1)) == 21 << 1 | |
4316 | && (insn & ((1 << 11) - (1 << 1))) == 341 << 1) | |
4317 | /* lwax -> lwa. */ | |
4318 | insn = (58 << 26) | 2; | |
4319 | else | |
4320 | abort (); | |
4321 | insn |= rtra; | |
4322 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
4323 | r_type = R_PPC_TPREL16_LO; | |
4324 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
4325 | /* Was PPC_TLS which sits on insn boundary, now | |
4326 | PPC_TPREL16_LO which is at insn+2. */ | |
4327 | rel->r_offset += 2; | |
4328 | } | |
4329 | break; | |
4330 | ||
4331 | case R_PPC_GOT_TLSGD16_HI: | |
4332 | case R_PPC_GOT_TLSGD16_HA: | |
4333 | tls_gd = TLS_TPRELGD; | |
4334 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
4335 | goto tls_gdld_hi; | |
4336 | break; | |
4337 | ||
4338 | case R_PPC_GOT_TLSLD16_HI: | |
4339 | case R_PPC_GOT_TLSLD16_HA: | |
4340 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
4341 | { | |
4342 | tls_gdld_hi: | |
4343 | if ((tls_mask & tls_gd) != 0) | |
4344 | r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3) | |
4345 | + R_PPC_GOT_TPREL16); | |
4346 | else | |
4347 | { | |
4348 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); | |
4349 | rel->r_offset -= 2; | |
4350 | r_type = R_PPC_NONE; | |
4351 | } | |
4352 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
4353 | } | |
4354 | break; | |
4355 | ||
4356 | case R_PPC_GOT_TLSGD16: | |
4357 | case R_PPC_GOT_TLSGD16_LO: | |
4358 | tls_gd = TLS_TPRELGD; | |
4359 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
4360 | goto tls_get_addr_check; | |
4361 | break; | |
4362 | ||
4363 | case R_PPC_GOT_TLSLD16: | |
4364 | case R_PPC_GOT_TLSLD16_LO: | |
4365 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
4366 | { | |
4367 | tls_get_addr_check: | |
4368 | if (rel + 1 < relend) | |
4369 | { | |
4370 | enum elf_ppc_reloc_type r_type2; | |
4371 | unsigned long r_symndx2; | |
4372 | struct elf_link_hash_entry *h2; | |
4373 | bfd_vma insn1, insn2, insn3; | |
4374 | bfd_vma offset; | |
4375 | ||
4376 | /* The next instruction should be a call to | |
4377 | __tls_get_addr. Peek at the reloc to be sure. */ | |
4378 | r_type2 | |
4379 | = (enum elf_ppc_reloc_type) ELF32_R_TYPE (rel[1].r_info); | |
4380 | r_symndx2 = ELF32_R_SYM (rel[1].r_info); | |
4381 | if (r_symndx2 < symtab_hdr->sh_info | |
4382 | || (r_type2 != R_PPC_REL14 | |
4383 | && r_type2 != R_PPC_REL14_BRTAKEN | |
4384 | && r_type2 != R_PPC_REL14_BRNTAKEN | |
4385 | && r_type2 != R_PPC_REL24 | |
4386 | && r_type2 != R_PPC_PLTREL24)) | |
4387 | break; | |
4388 | ||
4389 | h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info]; | |
4390 | while (h2->root.type == bfd_link_hash_indirect | |
4391 | || h2->root.type == bfd_link_hash_warning) | |
4392 | h2 = (struct elf_link_hash_entry *) h2->root.u.i.link; | |
4393 | if (h2 == NULL || h2 != htab->tls_get_addr) | |
4394 | break; | |
4395 | ||
4396 | /* OK, it checks out. Replace the call. */ | |
4397 | offset = rel[1].r_offset; | |
4398 | insn1 = bfd_get_32 (output_bfd, | |
4399 | contents + rel->r_offset - 2); | |
4400 | insn3 = bfd_get_32 (output_bfd, | |
4401 | contents + offset + 4); | |
4402 | if ((tls_mask & tls_gd) != 0) | |
4403 | { | |
4404 | /* IE */ | |
4405 | insn1 &= (1 << 26) - 1; | |
4406 | insn1 |= 32 << 26; /* lwz */ | |
4407 | insn2 = 0x7c631214; /* add 3,3,2 */ | |
4408 | rel[1].r_info = ELF32_R_INFO (r_symndx2, R_PPC_NONE); | |
4409 | r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3) | |
4410 | + R_PPC_GOT_TPREL16); | |
4411 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
4412 | } | |
4413 | else | |
4414 | { | |
4415 | /* LE */ | |
4416 | insn1 = 0x3c620000; /* addis 3,2,0 */ | |
4417 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
4418 | if (tls_gd == 0) | |
4419 | { | |
4420 | /* Was an LD reloc. */ | |
4421 | r_symndx = 0; | |
4422 | rel->r_addend = htab->tls_sec->vma + DTP_OFFSET; | |
4423 | rel[1].r_addend = htab->tls_sec->vma + DTP_OFFSET; | |
4424 | } | |
4425 | r_type = R_PPC_TPREL16_HA; | |
4426 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
4427 | rel[1].r_info = ELF32_R_INFO (r_symndx, | |
4428 | R_PPC_TPREL16_LO); | |
4429 | rel[1].r_offset += 2; | |
4430 | } | |
4431 | if (insn3 == NOP | |
4432 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
4433 | { | |
4434 | insn3 = insn2; | |
4435 | insn2 = NOP; | |
4436 | rel[1].r_offset += 4; | |
4437 | } | |
4438 | bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2); | |
4439 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
4440 | bfd_put_32 (output_bfd, insn3, contents + offset + 4); | |
4441 | if (tls_gd == 0) | |
4442 | { | |
4443 | /* We changed the symbol on an LD reloc. Start over | |
4444 | in order to get h, sym, sec etc. right. */ | |
4445 | rel--; | |
4446 | continue; | |
4447 | } | |
4448 | } | |
252b5132 | 4449 | } |
7619e7c7 AM |
4450 | break; |
4451 | } | |
4452 | ||
4453 | /* Handle other relocations that tweak non-addend part of insn. */ | |
4454 | branch_bit = 0; | |
4455 | switch (r_type) | |
4456 | { | |
4457 | default: | |
4458 | break; | |
4459 | ||
4460 | /* Branch taken prediction relocations. */ | |
4461 | case R_PPC_ADDR14_BRTAKEN: | |
4462 | case R_PPC_REL14_BRTAKEN: | |
4463 | branch_bit = BRANCH_PREDICT_BIT; | |
4464 | /* Fall thru */ | |
4465 | ||
4466 | /* Branch not taken predicition relocations. */ | |
4467 | case R_PPC_ADDR14_BRNTAKEN: | |
4468 | case R_PPC_REL14_BRNTAKEN: | |
4469 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); | |
4470 | insn &= ~BRANCH_PREDICT_BIT; | |
4471 | insn |= branch_bit; | |
4472 | ||
4473 | from = (rel->r_offset | |
4474 | + input_section->output_offset | |
4475 | + input_section->output_section->vma); | |
4476 | ||
4477 | /* Invert 'y' bit if not the default. */ | |
4478 | if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0) | |
4479 | insn ^= BRANCH_PREDICT_BIT; | |
4480 | ||
4481 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
4482 | break; | |
252b5132 RH |
4483 | } |
4484 | ||
7619e7c7 AM |
4485 | addend = rel->r_addend; |
4486 | tls_type = 0; | |
4487 | howto = NULL; | |
4488 | if ((unsigned) r_type < (unsigned) R_PPC_max) | |
4489 | howto = ppc_elf_howto_table[(int) r_type]; | |
4490 | switch (r_type) | |
252b5132 RH |
4491 | { |
4492 | default: | |
7619e7c7 AM |
4493 | (*_bfd_error_handler) |
4494 | (_("%s: unknown relocation type %d for symbol %s"), | |
4495 | bfd_archive_filename (input_bfd), (int) r_type, sym_name); | |
252b5132 RH |
4496 | |
4497 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 4498 | ret = FALSE; |
252b5132 RH |
4499 | continue; |
4500 | ||
7619e7c7 AM |
4501 | case R_PPC_NONE: |
4502 | case R_PPC_TLS: | |
4503 | case R_PPC_EMB_MRKREF: | |
4504 | case R_PPC_GNU_VTINHERIT: | |
4505 | case R_PPC_GNU_VTENTRY: | |
7595d193 L |
4506 | continue; |
4507 | ||
7619e7c7 AM |
4508 | /* GOT16 relocations. Like an ADDR16 using the symbol's |
4509 | address in the GOT as relocation value instead of the | |
4510 | symbol's value itself. Also, create a GOT entry for the | |
4511 | symbol and put the symbol value there. */ | |
4512 | case R_PPC_GOT_TLSGD16: | |
4513 | case R_PPC_GOT_TLSGD16_LO: | |
4514 | case R_PPC_GOT_TLSGD16_HI: | |
4515 | case R_PPC_GOT_TLSGD16_HA: | |
4516 | tls_type = TLS_TLS | TLS_GD; | |
4517 | goto dogot; | |
4518 | ||
4519 | case R_PPC_GOT_TLSLD16: | |
4520 | case R_PPC_GOT_TLSLD16_LO: | |
4521 | case R_PPC_GOT_TLSLD16_HI: | |
4522 | case R_PPC_GOT_TLSLD16_HA: | |
4523 | tls_type = TLS_TLS | TLS_LD; | |
4524 | goto dogot; | |
4525 | ||
4526 | case R_PPC_GOT_TPREL16: | |
4527 | case R_PPC_GOT_TPREL16_LO: | |
4528 | case R_PPC_GOT_TPREL16_HI: | |
4529 | case R_PPC_GOT_TPREL16_HA: | |
4530 | tls_type = TLS_TLS | TLS_TPREL; | |
4531 | goto dogot; | |
4532 | ||
4533 | case R_PPC_GOT_DTPREL16: | |
4534 | case R_PPC_GOT_DTPREL16_LO: | |
4535 | case R_PPC_GOT_DTPREL16_HI: | |
4536 | case R_PPC_GOT_DTPREL16_HA: | |
4537 | tls_type = TLS_TLS | TLS_DTPREL; | |
4538 | goto dogot; | |
4539 | ||
4540 | case R_PPC_GOT16: | |
4541 | case R_PPC_GOT16_LO: | |
4542 | case R_PPC_GOT16_HI: | |
4543 | case R_PPC_GOT16_HA: | |
4544 | dogot: | |
4545 | { | |
4546 | /* Relocation is to the entry for this symbol in the global | |
4547 | offset table. */ | |
4548 | bfd_vma off; | |
4549 | bfd_vma *offp; | |
4550 | unsigned long indx; | |
4551 | ||
4552 | if (htab->got == NULL) | |
4553 | abort (); | |
4554 | ||
4555 | indx = 0; | |
4556 | if (tls_type == (TLS_TLS | TLS_LD) | |
4557 | && ((tls_mask & TLS_LD) == 0 | |
4558 | || h == NULL | |
4559 | || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))) | |
4560 | offp = &htab->tlsld_got.offset; | |
4561 | else if (h != NULL) | |
4562 | { | |
4563 | bfd_boolean dyn; | |
4564 | dyn = htab->elf.dynamic_sections_created; | |
4565 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h) | |
4566 | || (info->shared | |
4567 | && SYMBOL_REFERENCES_LOCAL (info, h))) | |
4568 | /* This is actually a static link, or it is a | |
4569 | -Bsymbolic link and the symbol is defined | |
4570 | locally, or the symbol was forced to be local | |
4571 | because of a version file. */ | |
4572 | ; | |
4573 | else | |
4574 | { | |
4575 | indx = h->dynindx; | |
4576 | unresolved_reloc = FALSE; | |
4577 | } | |
4578 | offp = &h->got.offset; | |
4579 | } | |
4580 | else | |
4581 | { | |
4582 | if (local_got_offsets == NULL) | |
4583 | abort (); | |
4584 | offp = &local_got_offsets[r_symndx]; | |
4585 | } | |
4586 | ||
4587 | /* The offset must always be a multiple of 4. We use the | |
4588 | least significant bit to record whether we have already | |
4589 | processed this entry. */ | |
4590 | off = *offp; | |
4591 | if ((off & 1) != 0) | |
4592 | off &= ~1; | |
4593 | else | |
4594 | { | |
4595 | *offp = off | 1; | |
4596 | ||
4597 | /* Generate relocs for the dynamic linker, except in | |
4598 | the case of TLSLD where we'll use one entry per | |
4599 | module. */ | |
4600 | if (info->shared || indx != 0) | |
4601 | { | |
4602 | outrel.r_offset = (htab->got->output_section->vma | |
4603 | + htab->got->output_offset | |
4604 | + off); | |
4605 | if (tls_type & (TLS_LD | TLS_GD)) | |
4606 | { | |
4607 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32); | |
4608 | outrel.r_addend = 0; | |
4609 | if (tls_type == (TLS_TLS | TLS_GD)) | |
4610 | { | |
4611 | loc = htab->relgot->contents; | |
4612 | loc += (htab->relgot->reloc_count++ | |
4613 | * sizeof (Elf32_External_Rela)); | |
4614 | bfd_elf32_swap_reloca_out (output_bfd, | |
4615 | &outrel, loc); | |
4616 | outrel.r_info | |
4617 | = ELF32_R_INFO (indx, R_PPC_DTPREL32); | |
4618 | outrel.r_offset += 4; | |
4619 | } | |
4620 | } | |
4621 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) | |
4622 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32); | |
4623 | else if (tls_type == (TLS_TLS | TLS_TPREL)) | |
4624 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32); | |
4625 | else if (indx == 0) | |
4626 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_RELATIVE); | |
4627 | else | |
4628 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT); | |
4629 | outrel.r_addend = 0; | |
4630 | if (indx == 0) | |
4631 | outrel.r_addend += relocation; | |
4632 | loc = htab->relgot->contents; | |
4633 | loc += (htab->relgot->reloc_count++ | |
4634 | * sizeof (Elf32_External_Rela)); | |
4635 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
4636 | } | |
4637 | ||
4638 | /* Init the .got section contents if we're not | |
4639 | emitting a reloc. */ | |
4640 | else | |
4641 | { | |
4642 | if (tls_type != 0) | |
4643 | { | |
4644 | relocation -= htab->tls_sec->vma + DTP_OFFSET; | |
4645 | if ((tls_type & TLS_TPREL) != 0) | |
4646 | relocation += DTP_OFFSET - TP_OFFSET; | |
4647 | } | |
4648 | ||
4649 | if (tls_type == (TLS_TLS | TLS_GD)) | |
4650 | { | |
4651 | bfd_put_32 (output_bfd, relocation, | |
4652 | htab->got->contents + off + 4); | |
4653 | relocation = 1; | |
4654 | } | |
4655 | else if (tls_type == (TLS_TLS | TLS_LD)) | |
4656 | relocation = 1; | |
4657 | bfd_put_32 (output_bfd, relocation, | |
4658 | htab->got->contents + off); | |
4659 | } | |
4660 | } | |
4661 | ||
4662 | if (off >= (bfd_vma) -2) | |
4663 | abort (); | |
4664 | ||
4665 | relocation = htab->got->output_offset + off - 4; | |
4666 | ||
4667 | /* Addends on got relocations don't make much sense. | |
4668 | x+off@got is actually x@got+off, and since the got is | |
4669 | generated by a hash table traversal, the value in the | |
4670 | got at entry m+n bears little relation to the entry m. */ | |
4671 | if (addend != 0) | |
4672 | (*_bfd_error_handler) | |
4673 | (_("%s(%s+0x%lx): non-zero addend on got reloc against `%s'"), | |
4674 | bfd_archive_filename (input_bfd), | |
4675 | bfd_get_section_name (input_bfd, input_section), | |
4676 | (long) rel->r_offset, | |
4677 | sym_name); | |
4678 | } | |
4679 | break; | |
4680 | ||
252b5132 | 4681 | /* Relocations that need no special processing. */ |
7619e7c7 | 4682 | case R_PPC_LOCAL24PC: |
252b5132 RH |
4683 | /* It makes no sense to point a local relocation |
4684 | at a symbol not in this object. */ | |
4685 | if (h != NULL | |
4686 | && (h->root.type == bfd_link_hash_defined | |
4687 | || h->root.type == bfd_link_hash_defweak) | |
4688 | && sec->output_section == NULL) | |
4689 | { | |
464e1740 ILT |
4690 | if (! (*info->callbacks->undefined_symbol) (info, |
4691 | h->root.root.string, | |
4692 | input_bfd, | |
4693 | input_section, | |
5cc7c785 | 4694 | rel->r_offset, |
b34976b6 AM |
4695 | TRUE)) |
4696 | return FALSE; | |
252b5132 RH |
4697 | continue; |
4698 | } | |
4699 | break; | |
4700 | ||
7619e7c7 AM |
4701 | case R_PPC_DTPREL16: |
4702 | case R_PPC_DTPREL16_LO: | |
4703 | case R_PPC_DTPREL16_HI: | |
4704 | case R_PPC_DTPREL16_HA: | |
4705 | addend -= htab->tls_sec->vma + DTP_OFFSET; | |
4706 | break; | |
4707 | ||
252b5132 RH |
4708 | /* Relocations that may need to be propagated if this is a shared |
4709 | object. */ | |
7619e7c7 AM |
4710 | case R_PPC_TPREL16: |
4711 | case R_PPC_TPREL16_LO: | |
4712 | case R_PPC_TPREL16_HI: | |
4713 | case R_PPC_TPREL16_HA: | |
4714 | addend -= htab->tls_sec->vma + TP_OFFSET; | |
4715 | /* The TPREL16 relocs shouldn't really be used in shared | |
4716 | libs as they will result in DT_TEXTREL being set, but | |
4717 | support them anyway. */ | |
4718 | goto dodyn; | |
4719 | ||
4720 | case R_PPC_TPREL32: | |
4721 | addend -= htab->tls_sec->vma + TP_OFFSET; | |
4722 | goto dodyn; | |
4723 | ||
4724 | case R_PPC_DTPREL32: | |
4725 | addend -= htab->tls_sec->vma + DTP_OFFSET; | |
4726 | goto dodyn; | |
4727 | ||
4728 | case R_PPC_REL24: | |
4729 | case R_PPC_REL32: | |
4730 | case R_PPC_REL14: | |
4731 | case R_PPC_REL14_BRTAKEN: | |
4732 | case R_PPC_REL14_BRNTAKEN: | |
252b5132 RH |
4733 | /* If these relocations are not to a named symbol, they can be |
4734 | handled right here, no need to bother the dynamic linker. */ | |
4735 | if (h == NULL | |
e1e0340b GK |
4736 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0 |
4737 | || SYMBOL_REFERENCES_LOCAL (info, h)) | |
252b5132 RH |
4738 | break; |
4739 | /* fall through */ | |
4740 | ||
4741 | /* Relocations that always need to be propagated if this is a shared | |
4742 | object. */ | |
7619e7c7 AM |
4743 | case R_PPC_ADDR32: |
4744 | case R_PPC_ADDR24: | |
4745 | case R_PPC_ADDR16: | |
4746 | case R_PPC_ADDR16_LO: | |
4747 | case R_PPC_ADDR16_HI: | |
4748 | case R_PPC_ADDR16_HA: | |
4749 | case R_PPC_ADDR14: | |
4750 | case R_PPC_ADDR14_BRTAKEN: | |
4751 | case R_PPC_ADDR14_BRNTAKEN: | |
4752 | case R_PPC_UADDR32: | |
4753 | case R_PPC_UADDR16: | |
4754 | case R_PPC_DTPMOD32: | |
4755 | dodyn: | |
ec338859 | 4756 | if (info->shared && r_symndx != 0) |
252b5132 | 4757 | { |
0bb2d96a | 4758 | int skip; |
252b5132 RH |
4759 | |
4760 | #ifdef DEBUG | |
4761 | fprintf (stderr, "ppc_elf_relocate_section need to create relocation for %s\n", | |
4762 | (h && h->root.root.string) ? h->root.root.string : "<unknown>"); | |
4763 | #endif | |
4764 | ||
4765 | /* When generating a shared object, these relocations | |
4766 | are copied into the output file to be resolved at run | |
4767 | time. */ | |
252b5132 RH |
4768 | if (sreloc == NULL) |
4769 | { | |
4770 | const char *name; | |
4771 | ||
4772 | name = (bfd_elf_string_from_elf_section | |
4773 | (input_bfd, | |
4774 | elf_elfheader (input_bfd)->e_shstrndx, | |
4775 | elf_section_data (input_section)->rel_hdr.sh_name)); | |
4776 | if (name == NULL) | |
b34976b6 | 4777 | return FALSE; |
252b5132 RH |
4778 | |
4779 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
4780 | && strcmp (bfd_get_section_name (input_bfd, | |
4781 | input_section), | |
4782 | name + 5) == 0); | |
4783 | ||
7619e7c7 | 4784 | sreloc = bfd_get_section_by_name (htab->elf.dynobj, name); |
252b5132 RH |
4785 | BFD_ASSERT (sreloc != NULL); |
4786 | } | |
4787 | ||
0bb2d96a | 4788 | skip = 0; |
252b5132 | 4789 | |
c629eae0 JJ |
4790 | outrel.r_offset = |
4791 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
4792 | rel->r_offset); | |
0bb2d96a JJ |
4793 | if (outrel.r_offset == (bfd_vma) -1 |
4794 | || outrel.r_offset == (bfd_vma) -2) | |
4795 | skip = (int) outrel.r_offset; | |
252b5132 RH |
4796 | outrel.r_offset += (input_section->output_section->vma |
4797 | + input_section->output_offset); | |
4798 | ||
4799 | if (skip) | |
4800 | memset (&outrel, 0, sizeof outrel); | |
4801 | /* h->dynindx may be -1 if this symbol was marked to | |
4802 | become local. */ | |
e1e0340b | 4803 | else if (! will_become_local) |
252b5132 | 4804 | { |
7619e7c7 | 4805 | unresolved_reloc = FALSE; |
252b5132 RH |
4806 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); |
4807 | outrel.r_addend = rel->r_addend; | |
4808 | } | |
4809 | else | |
4810 | { | |
47388f4c AM |
4811 | outrel.r_addend = relocation + rel->r_addend; |
4812 | ||
252b5132 | 4813 | if (r_type == R_PPC_ADDR32) |
47388f4c | 4814 | outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE); |
252b5132 RH |
4815 | else |
4816 | { | |
4817 | long indx; | |
4818 | ||
4819 | if (h == NULL) | |
4820 | sec = local_sections[r_symndx]; | |
4821 | else | |
4822 | { | |
4823 | BFD_ASSERT (h->root.type == bfd_link_hash_defined | |
4824 | || (h->root.type | |
4825 | == bfd_link_hash_defweak)); | |
4826 | sec = h->root.u.def.section; | |
4827 | } | |
47388f4c AM |
4828 | |
4829 | if (bfd_is_abs_section (sec)) | |
252b5132 RH |
4830 | indx = 0; |
4831 | else if (sec == NULL || sec->owner == NULL) | |
4832 | { | |
4833 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 4834 | return FALSE; |
252b5132 RH |
4835 | } |
4836 | else | |
4837 | { | |
4838 | asection *osec; | |
4839 | ||
47388f4c AM |
4840 | /* We are turning this relocation into one |
4841 | against a section symbol. It would be | |
4842 | proper to subtract the symbol's value, | |
4843 | osec->vma, from the emitted reloc addend, | |
4844 | but ld.so expects buggy relocs. */ | |
252b5132 RH |
4845 | osec = sec->output_section; |
4846 | indx = elf_section_data (osec)->dynindx; | |
8da6118f | 4847 | BFD_ASSERT (indx > 0); |
252b5132 RH |
4848 | #ifdef DEBUG |
4849 | if (indx <= 0) | |
4850 | { | |
c3668558 | 4851 | printf ("indx=%d section=%s flags=%08x name=%s\n", |
252b5132 RH |
4852 | indx, osec->name, osec->flags, |
4853 | h->root.root.string); | |
4854 | } | |
4855 | #endif | |
4856 | } | |
4857 | ||
4858 | outrel.r_info = ELF32_R_INFO (indx, r_type); | |
252b5132 RH |
4859 | } |
4860 | } | |
4861 | ||
947216bf AM |
4862 | loc = sreloc->contents; |
4863 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
4864 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
252b5132 | 4865 | |
2243deae | 4866 | if (skip == -1) |
252b5132 | 4867 | continue; |
2243deae L |
4868 | |
4869 | /* This reloc will be computed at runtime. We clear the memory | |
4870 | so that it contains predictable value. */ | |
4871 | if (! skip | |
4872 | && ((input_section->flags & SEC_ALLOC) != 0 | |
4873 | || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE)) | |
4874 | { | |
4875 | relocation = howto->pc_relative ? outrel.r_offset : 0; | |
4876 | addend = 0; | |
4877 | break; | |
4878 | } | |
252b5132 | 4879 | } |
252b5132 RH |
4880 | break; |
4881 | ||
ae9a127f | 4882 | /* Indirect .sdata relocation. */ |
7619e7c7 AM |
4883 | case R_PPC_EMB_SDAI16: |
4884 | BFD_ASSERT (htab->sdata != NULL); | |
4885 | relocation | |
4886 | = bfd_elf32_finish_pointer_linker_section (output_bfd, input_bfd, | |
4887 | info, htab->sdata, h, | |
4888 | relocation, rel, | |
4889 | R_PPC_RELATIVE); | |
252b5132 RH |
4890 | break; |
4891 | ||
ae9a127f | 4892 | /* Indirect .sdata2 relocation. */ |
7619e7c7 AM |
4893 | case R_PPC_EMB_SDA2I16: |
4894 | BFD_ASSERT (htab->sdata2 != NULL); | |
4895 | relocation | |
4896 | = bfd_elf32_finish_pointer_linker_section (output_bfd, input_bfd, | |
4897 | info, htab->sdata2, h, | |
4898 | relocation, rel, | |
4899 | R_PPC_RELATIVE); | |
252b5132 RH |
4900 | break; |
4901 | ||
4902 | /* Handle the TOC16 reloc. We want to use the offset within the .got | |
4903 | section, not the actual VMA. This is appropriate when generating | |
4904 | an embedded ELF object, for which the .got section acts like the | |
4905 | AIX .toc section. */ | |
7619e7c7 | 4906 | case R_PPC_TOC16: /* phony GOT16 relocations */ |
8da6118f | 4907 | BFD_ASSERT (sec != (asection *) 0); |
252b5132 RH |
4908 | BFD_ASSERT (bfd_is_und_section (sec) |
4909 | || strcmp (bfd_get_section_name (abfd, sec), ".got") == 0 | |
4910 | || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0) | |
4911 | ||
4912 | addend -= sec->output_section->vma + sec->output_offset + 0x8000; | |
4913 | break; | |
4914 | ||
7619e7c7 | 4915 | case R_PPC_PLTREL24: |
252b5132 RH |
4916 | /* Relocation is to the entry for this symbol in the |
4917 | procedure linkage table. */ | |
4918 | BFD_ASSERT (h != NULL); | |
4919 | ||
4920 | if (h->plt.offset == (bfd_vma) -1 | |
7619e7c7 | 4921 | || htab->plt == NULL) |
252b5132 RH |
4922 | { |
4923 | /* We didn't make a PLT entry for this symbol. This | |
4924 | happens when statically linking PIC code, or when | |
4925 | using -Bsymbolic. */ | |
4926 | break; | |
4927 | } | |
4928 | ||
7619e7c7 AM |
4929 | unresolved_reloc = FALSE; |
4930 | relocation = (htab->plt->output_section->vma | |
4931 | + htab->plt->output_offset | |
252b5132 | 4932 | + h->plt.offset); |
8da6118f | 4933 | break; |
252b5132 | 4934 | |
ae9a127f | 4935 | /* Relocate against _SDA_BASE_. */ |
7619e7c7 | 4936 | case R_PPC_SDAREL16: |
252b5132 RH |
4937 | { |
4938 | const char *name; | |
7619e7c7 | 4939 | const struct elf_link_hash_entry *sh; |
252b5132 | 4940 | |
8da6118f | 4941 | BFD_ASSERT (sec != (asection *) 0); |
252b5132 | 4942 | name = bfd_get_section_name (abfd, sec->output_section); |
5f819128 AM |
4943 | if (! ((strncmp (name, ".sdata", 6) == 0 |
4944 | && (name[6] == 0 || name[6] == '.')) | |
4945 | || (strncmp (name, ".sbss", 5) == 0 | |
4946 | && (name[5] == 0 || name[5] == '.')))) | |
252b5132 RH |
4947 | { |
4948 | (*_bfd_error_handler) (_("%s: The target (%s) of a %s relocation is in the wrong output section (%s)"), | |
8f615d07 | 4949 | bfd_archive_filename (input_bfd), |
252b5132 | 4950 | sym_name, |
7619e7c7 | 4951 | howto->name, |
252b5132 RH |
4952 | name); |
4953 | } | |
7619e7c7 AM |
4954 | sh = htab->sdata->sym_hash; |
4955 | addend -= (sh->root.u.def.value | |
4956 | + sh->root.u.def.section->output_section->vma | |
4957 | + sh->root.u.def.section->output_offset); | |
252b5132 RH |
4958 | } |
4959 | break; | |
4960 | ||
7619e7c7 AM |
4961 | /* Relocate against _SDA2_BASE_. */ |
4962 | case R_PPC_EMB_SDA2REL: | |
252b5132 RH |
4963 | { |
4964 | const char *name; | |
7619e7c7 | 4965 | const struct elf_link_hash_entry *sh; |
252b5132 | 4966 | |
8da6118f | 4967 | BFD_ASSERT (sec != (asection *) 0); |
252b5132 | 4968 | name = bfd_get_section_name (abfd, sec->output_section); |
5f819128 AM |
4969 | if (! (strncmp (name, ".sdata2", 7) == 0 |
4970 | || strncmp (name, ".sbss2", 6) == 0)) | |
252b5132 RH |
4971 | { |
4972 | (*_bfd_error_handler) (_("%s: The target (%s) of a %s relocation is in the wrong output section (%s)"), | |
8f615d07 | 4973 | bfd_archive_filename (input_bfd), |
252b5132 | 4974 | sym_name, |
7619e7c7 | 4975 | howto->name, |
252b5132 | 4976 | name); |
c3668558 | 4977 | |
252b5132 | 4978 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 4979 | ret = FALSE; |
252b5132 RH |
4980 | continue; |
4981 | } | |
7619e7c7 AM |
4982 | sh = htab->sdata2->sym_hash; |
4983 | addend -= (sh->root.u.def.value | |
4984 | + sh->root.u.def.section->output_section->vma | |
4985 | + sh->root.u.def.section->output_offset); | |
252b5132 RH |
4986 | } |
4987 | break; | |
4988 | ||
ae9a127f | 4989 | /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */ |
7619e7c7 AM |
4990 | case R_PPC_EMB_SDA21: |
4991 | case R_PPC_EMB_RELSDA: | |
252b5132 RH |
4992 | { |
4993 | const char *name; | |
7619e7c7 | 4994 | const struct elf_link_hash_entry *sh; |
252b5132 RH |
4995 | int reg; |
4996 | ||
8da6118f | 4997 | BFD_ASSERT (sec != (asection *) 0); |
252b5132 | 4998 | name = bfd_get_section_name (abfd, sec->output_section); |
b34976b6 | 4999 | if (((strncmp (name, ".sdata", 6) == 0 |
5f819128 AM |
5000 | && (name[6] == 0 || name[6] == '.')) |
5001 | || (strncmp (name, ".sbss", 5) == 0 | |
5002 | && (name[5] == 0 || name[5] == '.')))) | |
252b5132 RH |
5003 | { |
5004 | reg = 13; | |
7619e7c7 AM |
5005 | sh = htab->sdata->sym_hash; |
5006 | addend -= (sh->root.u.def.value | |
5007 | + sh->root.u.def.section->output_section->vma | |
5008 | + sh->root.u.def.section->output_offset); | |
252b5132 RH |
5009 | } |
5010 | ||
5f819128 AM |
5011 | else if (strncmp (name, ".sdata2", 7) == 0 |
5012 | || strncmp (name, ".sbss2", 6) == 0) | |
252b5132 RH |
5013 | { |
5014 | reg = 2; | |
7619e7c7 AM |
5015 | sh = htab->sdata2->sym_hash; |
5016 | addend -= (sh->root.u.def.value | |
5017 | + sh->root.u.def.section->output_section->vma | |
5018 | + sh->root.u.def.section->output_offset); | |
252b5132 RH |
5019 | } |
5020 | ||
8da6118f KH |
5021 | else if (strcmp (name, ".PPC.EMB.sdata0") == 0 |
5022 | || strcmp (name, ".PPC.EMB.sbss0") == 0) | |
252b5132 RH |
5023 | { |
5024 | reg = 0; | |
5025 | } | |
5026 | ||
5027 | else | |
5028 | { | |
5029 | (*_bfd_error_handler) (_("%s: The target (%s) of a %s relocation is in the wrong output section (%s)"), | |
8f615d07 | 5030 | bfd_archive_filename (input_bfd), |
252b5132 | 5031 | sym_name, |
7619e7c7 | 5032 | howto->name, |
252b5132 RH |
5033 | name); |
5034 | ||
5035 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 5036 | ret = FALSE; |
252b5132 RH |
5037 | continue; |
5038 | } | |
5039 | ||
5040 | if (r_type == R_PPC_EMB_SDA21) | |
5041 | { /* fill in register field */ | |
7619e7c7 | 5042 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
252b5132 | 5043 | insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT); |
7619e7c7 | 5044 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
252b5132 RH |
5045 | } |
5046 | } | |
5047 | break; | |
5048 | ||
ae9a127f | 5049 | /* Relocate against the beginning of the section. */ |
7619e7c7 AM |
5050 | case R_PPC_SECTOFF: |
5051 | case R_PPC_SECTOFF_LO: | |
5052 | case R_PPC_SECTOFF_HI: | |
5053 | case R_PPC_SECTOFF_HA: | |
8da6118f | 5054 | BFD_ASSERT (sec != (asection *) 0); |
252b5132 | 5055 | addend -= sec->output_section->vma; |
252b5132 RH |
5056 | break; |
5057 | ||
7619e7c7 AM |
5058 | /* Negative relocations. */ |
5059 | case R_PPC_EMB_NADDR32: | |
5060 | case R_PPC_EMB_NADDR16: | |
5061 | case R_PPC_EMB_NADDR16_LO: | |
5062 | case R_PPC_EMB_NADDR16_HI: | |
5063 | case R_PPC_EMB_NADDR16_HA: | |
8da6118f | 5064 | addend -= 2 * relocation; |
252b5132 RH |
5065 | break; |
5066 | ||
7619e7c7 AM |
5067 | case R_PPC_COPY: |
5068 | case R_PPC_GLOB_DAT: | |
5069 | case R_PPC_JMP_SLOT: | |
5070 | case R_PPC_RELATIVE: | |
5071 | case R_PPC_PLT32: | |
5072 | case R_PPC_PLTREL32: | |
5073 | case R_PPC_PLT16_LO: | |
5074 | case R_PPC_PLT16_HI: | |
5075 | case R_PPC_PLT16_HA: | |
5076 | case R_PPC_ADDR30: | |
5077 | case R_PPC_EMB_RELSEC16: | |
5078 | case R_PPC_EMB_RELST_LO: | |
5079 | case R_PPC_EMB_RELST_HI: | |
5080 | case R_PPC_EMB_RELST_HA: | |
5081 | case R_PPC_EMB_BIT_FLD: | |
5082 | (*_bfd_error_handler) | |
5083 | (_("%s: Relocation %s is not yet supported for symbol %s."), | |
5084 | bfd_archive_filename (input_bfd), | |
5085 | howto->name, | |
5086 | sym_name); | |
252b5132 RH |
5087 | |
5088 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 5089 | ret = FALSE; |
252b5132 | 5090 | continue; |
7619e7c7 | 5091 | } |
252b5132 | 5092 | |
7619e7c7 AM |
5093 | /* Do any further special processing. */ |
5094 | switch (r_type) | |
5095 | { | |
5096 | default: | |
5097 | break; | |
5098 | ||
5099 | case R_PPC_ADDR16_HA: | |
5100 | case R_PPC_GOT16_HA: | |
5101 | case R_PPC_PLT16_HA: | |
5102 | case R_PPC_SECTOFF_HA: | |
5103 | case R_PPC_TPREL16_HA: | |
5104 | case R_PPC_DTPREL16_HA: | |
5105 | case R_PPC_GOT_TLSGD16_HA: | |
5106 | case R_PPC_GOT_TLSLD16_HA: | |
5107 | case R_PPC_GOT_TPREL16_HA: | |
5108 | case R_PPC_GOT_DTPREL16_HA: | |
5109 | case R_PPC_EMB_NADDR16_HA: | |
5110 | case R_PPC_EMB_RELST_HA: | |
5111 | /* It's just possible that this symbol is a weak symbol | |
5112 | that's not actually defined anywhere. In that case, | |
5113 | 'sec' would be NULL, and we should leave the symbol | |
5114 | alone (it will be set to zero elsewhere in the link). */ | |
5115 | if (sec != NULL) | |
5116 | /* Add 0x10000 if sign bit in 0:15 is set. */ | |
5117 | addend += ((relocation + addend) & 0x8000) << 1; | |
5118 | break; | |
252b5132 RH |
5119 | } |
5120 | ||
252b5132 RH |
5121 | #ifdef DEBUG |
5122 | fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, offset = %ld, addend = %ld\n", | |
5123 | howto->name, | |
8da6118f | 5124 | (int) r_type, |
252b5132 RH |
5125 | sym_name, |
5126 | r_symndx, | |
7619e7c7 | 5127 | (long) rel->r_offset, |
8da6118f | 5128 | (long) addend); |
252b5132 RH |
5129 | #endif |
5130 | ||
7619e7c7 AM |
5131 | if (unresolved_reloc |
5132 | && !((input_section->flags & SEC_DEBUGGING) != 0 | |
5133 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0)) | |
5134 | { | |
5135 | (*_bfd_error_handler) | |
5136 | (_("%s(%s+0x%lx): unresolvable relocation against symbol `%s'"), | |
5137 | bfd_archive_filename (input_bfd), | |
5138 | bfd_get_section_name (input_bfd, input_section), | |
5139 | (long) rel->r_offset, | |
5140 | sym_name); | |
5141 | ret = FALSE; | |
5142 | } | |
5143 | ||
252b5132 RH |
5144 | r = _bfd_final_link_relocate (howto, |
5145 | input_bfd, | |
5146 | input_section, | |
5147 | contents, | |
7619e7c7 | 5148 | rel->r_offset, |
252b5132 RH |
5149 | relocation, |
5150 | addend); | |
5151 | ||
7619e7c7 | 5152 | if (r != bfd_reloc_ok) |
252b5132 | 5153 | { |
7619e7c7 AM |
5154 | if (sym_name == NULL) |
5155 | sym_name = "(null)"; | |
5156 | if (r == bfd_reloc_overflow) | |
252b5132 | 5157 | { |
7619e7c7 AM |
5158 | if (warned) |
5159 | continue; | |
5160 | if (h != NULL | |
5161 | && h->root.type == bfd_link_hash_undefweak | |
dc1bc0c9 RH |
5162 | && howto->pc_relative) |
5163 | { | |
5164 | /* Assume this is a call protected by other code that | |
5165 | detect the symbol is undefined. If this is the case, | |
5166 | we can safely ignore the overflow. If not, the | |
5167 | program is hosed anyway, and a little warning isn't | |
5168 | going to help. */ | |
252b5132 | 5169 | |
dc1bc0c9 RH |
5170 | continue; |
5171 | } | |
252b5132 | 5172 | |
7619e7c7 AM |
5173 | if (! (*info->callbacks->reloc_overflow) (info, |
5174 | sym_name, | |
5175 | howto->name, | |
5176 | rel->r_addend, | |
5177 | input_bfd, | |
5178 | input_section, | |
5179 | rel->r_offset)) | |
5180 | return FALSE; | |
dc1bc0c9 RH |
5181 | } |
5182 | else | |
5183 | { | |
7619e7c7 AM |
5184 | (*_bfd_error_handler) |
5185 | (_("%s(%s+0x%lx): reloc against `%s': error %d"), | |
5186 | bfd_archive_filename (input_bfd), | |
5187 | bfd_get_section_name (input_bfd, input_section), | |
5188 | (long) rel->r_offset, sym_name, (int) r); | |
5189 | ret = FALSE; | |
252b5132 RH |
5190 | } |
5191 | } | |
5192 | } | |
5193 | ||
252b5132 RH |
5194 | #ifdef DEBUG |
5195 | fprintf (stderr, "\n"); | |
5196 | #endif | |
5197 | ||
5198 | return ret; | |
5199 | } | |
29c2fb7c AJ |
5200 | |
5201 | static enum elf_reloc_type_class | |
f51e552e AM |
5202 | ppc_elf_reloc_type_class (rela) |
5203 | const Elf_Internal_Rela *rela; | |
29c2fb7c | 5204 | { |
f51e552e | 5205 | switch ((int) ELF32_R_TYPE (rela->r_info)) |
29c2fb7c AJ |
5206 | { |
5207 | case R_PPC_RELATIVE: | |
5208 | return reloc_class_relative; | |
5209 | case R_PPC_REL24: | |
5210 | case R_PPC_ADDR24: | |
5211 | case R_PPC_JMP_SLOT: | |
5212 | return reloc_class_plt; | |
5213 | case R_PPC_COPY: | |
5214 | return reloc_class_copy; | |
5215 | default: | |
5216 | return reloc_class_normal; | |
5217 | } | |
5218 | } | |
252b5132 | 5219 | \f |
ae9a127f NC |
5220 | /* Support for core dump NOTE sections. */ |
5221 | ||
b34976b6 | 5222 | static bfd_boolean |
c5fccbec DJ |
5223 | ppc_elf_grok_prstatus (abfd, note) |
5224 | bfd *abfd; | |
5225 | Elf_Internal_Note *note; | |
5226 | { | |
5227 | int offset; | |
dc810e39 | 5228 | unsigned int raw_size; |
c5fccbec DJ |
5229 | |
5230 | switch (note->descsz) | |
5231 | { | |
5232 | default: | |
b34976b6 | 5233 | return FALSE; |
c5fccbec | 5234 | |
ae9a127f | 5235 | case 268: /* Linux/PPC. */ |
c5fccbec DJ |
5236 | /* pr_cursig */ |
5237 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
5238 | ||
5239 | /* pr_pid */ | |
5240 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24); | |
5241 | ||
5242 | /* pr_reg */ | |
5243 | offset = 72; | |
5244 | raw_size = 192; | |
5245 | ||
5246 | break; | |
5247 | } | |
5248 | ||
5249 | /* Make a ".reg/999" section. */ | |
5250 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
5251 | raw_size, note->descpos + offset); | |
5252 | } | |
5253 | ||
b34976b6 | 5254 | static bfd_boolean |
c5fccbec DJ |
5255 | ppc_elf_grok_psinfo (abfd, note) |
5256 | bfd *abfd; | |
5257 | Elf_Internal_Note *note; | |
5258 | { | |
5259 | switch (note->descsz) | |
5260 | { | |
5261 | default: | |
b34976b6 | 5262 | return FALSE; |
c5fccbec | 5263 | |
ae9a127f | 5264 | case 128: /* Linux/PPC elf_prpsinfo. */ |
c5fccbec DJ |
5265 | elf_tdata (abfd)->core_program |
5266 | = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16); | |
5267 | elf_tdata (abfd)->core_command | |
5268 | = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80); | |
5269 | } | |
5270 | ||
5271 | /* Note that for some reason, a spurious space is tacked | |
5272 | onto the end of the args in some (at least one anyway) | |
5273 | implementations, so strip it off if it exists. */ | |
5274 | ||
5275 | { | |
5276 | char *command = elf_tdata (abfd)->core_command; | |
5277 | int n = strlen (command); | |
5278 | ||
5279 | if (0 < n && command[n - 1] == ' ') | |
5280 | command[n - 1] = '\0'; | |
5281 | } | |
5282 | ||
b34976b6 | 5283 | return TRUE; |
c5fccbec DJ |
5284 | } |
5285 | \f | |
e1a9cb8e NC |
5286 | /* Very simple linked list structure for recording apuinfo values. */ |
5287 | typedef struct apuinfo_list | |
5288 | { | |
5289 | struct apuinfo_list * next; | |
5290 | unsigned long value; | |
5291 | } | |
5292 | apuinfo_list; | |
5293 | ||
5294 | static apuinfo_list * head; | |
5295 | ||
5296 | static void apuinfo_list_init PARAMS ((void)); | |
5297 | static void apuinfo_list_add PARAMS ((unsigned long)); | |
5298 | static unsigned apuinfo_list_length PARAMS ((void)); | |
5299 | static unsigned long apuinfo_list_element PARAMS ((unsigned long)); | |
5300 | static void apuinfo_list_finish PARAMS ((void)); | |
5301 | ||
5302 | extern void ppc_elf_begin_write_processing | |
5303 | PARAMS ((bfd *, struct bfd_link_info *)); | |
5304 | extern void ppc_elf_final_write_processing | |
5305 | PARAMS ((bfd *, bfd_boolean)); | |
5306 | extern bfd_boolean ppc_elf_write_section | |
5307 | PARAMS ((bfd *, asection *, bfd_byte *)); | |
5308 | ||
5309 | ||
5310 | ||
5311 | static void | |
5312 | apuinfo_list_init PARAMS ((void)) | |
5313 | { | |
5314 | head = NULL; | |
5315 | } | |
5316 | ||
5317 | static void | |
5318 | apuinfo_list_add (value) | |
5319 | unsigned long value; | |
5320 | { | |
5321 | apuinfo_list * entry = head; | |
5322 | ||
5323 | while (entry != NULL) | |
5324 | { | |
5325 | if (entry->value == value) | |
5326 | return; | |
5327 | entry = entry->next; | |
5328 | } | |
5329 | ||
5330 | entry = bfd_malloc (sizeof (* entry)); | |
5331 | if (entry == NULL) | |
5332 | return; | |
5333 | ||
5334 | entry->value = value; | |
5335 | entry->next = head; | |
5336 | head = entry; | |
5337 | } | |
5338 | ||
5339 | static unsigned | |
5340 | apuinfo_list_length PARAMS ((void)) | |
5341 | { | |
5342 | apuinfo_list * entry; | |
5343 | unsigned long count; | |
5344 | ||
5345 | for (entry = head, count = 0; | |
5346 | entry; | |
5347 | entry = entry->next) | |
5348 | ++ count; | |
5349 | ||
5350 | return count; | |
5351 | } | |
5352 | ||
5353 | static inline unsigned long | |
5354 | apuinfo_list_element (number) | |
5355 | unsigned long number; | |
5356 | { | |
5357 | apuinfo_list * entry; | |
5358 | ||
5359 | for (entry = head; | |
5360 | entry && number --; | |
5361 | entry = entry->next) | |
5362 | ; | |
5363 | ||
5364 | return entry ? entry->value : 0; | |
5365 | } | |
5366 | ||
5367 | static void | |
5368 | apuinfo_list_finish PARAMS ((void)) | |
5369 | { | |
5370 | apuinfo_list * entry; | |
5371 | ||
5372 | for (entry = head; entry;) | |
5373 | { | |
5374 | apuinfo_list * next = entry->next; | |
5375 | free (entry); | |
5376 | entry = next; | |
5377 | } | |
5378 | ||
5379 | head = NULL; | |
5380 | } | |
5381 | ||
5382 | #define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo" | |
5383 | #define APUINFO_LABEL "APUinfo" | |
5384 | ||
5385 | /* Scan the input BFDs and create a linked list of | |
5386 | the APUinfo values that will need to be emitted. */ | |
5387 | ||
5388 | void | |
5389 | ppc_elf_begin_write_processing (abfd, link_info) | |
5390 | bfd *abfd; | |
5391 | struct bfd_link_info *link_info; | |
5392 | { | |
5393 | bfd * ibfd; | |
5394 | asection * asec; | |
5395 | char * buffer; | |
5396 | unsigned num_input_sections; | |
5397 | bfd_size_type output_section_size; | |
5398 | unsigned i; | |
5399 | unsigned num_entries; | |
5400 | unsigned long offset; | |
5401 | unsigned long length; | |
5402 | const char * error_message = NULL; | |
5403 | ||
6b0817e5 NC |
5404 | if (link_info == NULL) |
5405 | return; | |
5406 | ||
e1a9cb8e NC |
5407 | /* Scan the input bfds, looking for apuinfo sections. */ |
5408 | num_input_sections = 0; | |
5409 | output_section_size = 0; | |
5410 | ||
5411 | for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next) | |
5412 | { | |
5413 | asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME); | |
5414 | if (asec) | |
5415 | { | |
5416 | ++ num_input_sections; | |
5417 | output_section_size += asec->_raw_size; | |
5418 | } | |
5419 | } | |
5420 | ||
5421 | /* We need at least one input sections | |
5422 | in order to make merging worthwhile. */ | |
5423 | if (num_input_sections < 1) | |
5424 | return; | |
5425 | ||
5426 | /* Just make sure that the output section exists as well. */ | |
5427 | asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); | |
5428 | if (asec == NULL) | |
5429 | return; | |
5430 | ||
5431 | /* Allocate a buffer for the contents of the input sections. */ | |
5432 | buffer = bfd_malloc (output_section_size); | |
5433 | if (buffer == NULL) | |
5434 | return; | |
5435 | ||
5436 | offset = 0; | |
5437 | apuinfo_list_init (); | |
5438 | ||
5439 | /* Read in the input sections contents. */ | |
5440 | for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next) | |
5441 | { | |
5442 | unsigned long datum; | |
5443 | char * ptr; | |
5444 | ||
86bbe32f | 5445 | |
e1a9cb8e NC |
5446 | asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME); |
5447 | if (asec == NULL) | |
5448 | continue; | |
5449 | ||
5450 | length = asec->_raw_size; | |
5451 | if (length < 24) | |
5452 | { | |
5453 | error_message = _("corrupt or empty %s section in %s"); | |
5454 | goto fail; | |
5455 | } | |
86bbe32f | 5456 | |
e1a9cb8e NC |
5457 | if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0 |
5458 | || (bfd_bread (buffer + offset, length, ibfd) != length)) | |
5459 | { | |
5460 | error_message = _("unable to read in %s section from %s"); | |
5461 | goto fail; | |
5462 | } | |
5463 | ||
5464 | /* Process the contents of the section. */ | |
5465 | ptr = buffer + offset; | |
5466 | error_message = _("corrupt %s section in %s"); | |
5467 | ||
5468 | /* Verify the contents of the header. Note - we have to | |
5469 | extract the values this way in order to allow for a | |
5470 | host whose endian-ness is different from the target. */ | |
5471 | datum = bfd_get_32 (ibfd, ptr); | |
5472 | if (datum != sizeof APUINFO_LABEL) | |
5473 | goto fail; | |
5474 | ||
5475 | datum = bfd_get_32 (ibfd, ptr + 8); | |
5476 | if (datum != 0x2) | |
5477 | goto fail; | |
5478 | ||
5479 | if (strcmp (ptr + 12, APUINFO_LABEL) != 0) | |
5480 | goto fail; | |
5481 | ||
5482 | /* Get the number of apuinfo entries. */ | |
5483 | datum = bfd_get_32 (ibfd, ptr + 4); | |
5484 | if ((datum * 4 + 20) != length) | |
5485 | goto fail; | |
5486 | ||
5487 | /* Make sure that we do not run off the end of the section. */ | |
5488 | if (offset + length > output_section_size) | |
5489 | goto fail; | |
5490 | ||
5491 | /* Scan the apuinfo section, building a list of apuinfo numbers. */ | |
5492 | for (i = 0; i < datum; i++) | |
5493 | apuinfo_list_add (bfd_get_32 (ibfd, ptr + 20 + (i * 4))); | |
5494 | ||
5495 | /* Update the offset. */ | |
5496 | offset += length; | |
5497 | } | |
5498 | ||
5499 | error_message = NULL; | |
5500 | ||
5501 | /* Compute the size of the output section. */ | |
5502 | num_entries = apuinfo_list_length (); | |
5503 | output_section_size = 20 + num_entries * 4; | |
5504 | ||
5505 | asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); | |
5506 | ||
5507 | if (! bfd_set_section_size (abfd, asec, output_section_size)) | |
5508 | ibfd = abfd, | |
5509 | error_message = _("warning: unable to set size of %s section in %s"); | |
86bbe32f | 5510 | |
e1a9cb8e NC |
5511 | fail: |
5512 | free (buffer); | |
5513 | ||
5514 | if (error_message) | |
5515 | _bfd_error_handler (error_message, APUINFO_SECTION_NAME, | |
5516 | bfd_archive_filename (ibfd)); | |
5517 | } | |
5518 | ||
5519 | ||
5520 | /* Prevent the output section from accumulating the input sections' | |
5521 | contents. We have already stored this in our linked list structure. */ | |
5522 | ||
5523 | bfd_boolean | |
5524 | ppc_elf_write_section (abfd, asec, contents) | |
5525 | bfd * abfd ATTRIBUTE_UNUSED; | |
5526 | asection * asec; | |
5527 | bfd_byte * contents ATTRIBUTE_UNUSED; | |
5528 | { | |
6b0817e5 | 5529 | return apuinfo_list_length () && strcmp (asec->name, APUINFO_SECTION_NAME) == 0; |
e1a9cb8e NC |
5530 | } |
5531 | ||
5532 | ||
5533 | /* Finally we can generate the output section. */ | |
5534 | ||
5535 | void | |
5536 | ppc_elf_final_write_processing (abfd, linker) | |
5537 | bfd * abfd; | |
5538 | bfd_boolean linker ATTRIBUTE_UNUSED; | |
5539 | { | |
5540 | bfd_byte * buffer; | |
5541 | asection * asec; | |
5542 | unsigned i; | |
5543 | unsigned num_entries; | |
5544 | bfd_size_type length; | |
5545 | ||
5546 | asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); | |
5547 | if (asec == NULL) | |
5548 | return; | |
5549 | ||
6b0817e5 NC |
5550 | if (apuinfo_list_length () == 0) |
5551 | return; | |
5552 | ||
e1a9cb8e NC |
5553 | length = asec->_raw_size; |
5554 | if (length < 20) | |
5555 | return; | |
5556 | ||
5557 | buffer = bfd_malloc (length); | |
5558 | if (buffer == NULL) | |
5559 | { | |
5560 | _bfd_error_handler (_("failed to allocate space for new APUinfo section.")); | |
5561 | return; | |
5562 | } | |
5563 | ||
5564 | /* Create the apuinfo header. */ | |
5565 | num_entries = apuinfo_list_length (); | |
5566 | bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer); | |
5567 | bfd_put_32 (abfd, num_entries, buffer + 4); | |
5568 | bfd_put_32 (abfd, 0x2, buffer + 8); | |
5569 | strcpy (buffer + 12, APUINFO_LABEL); | |
86bbe32f | 5570 | |
e1a9cb8e NC |
5571 | length = 20; |
5572 | for (i = 0; i < num_entries; i++) | |
5573 | { | |
5574 | bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length); | |
5575 | length += 4; | |
5576 | } | |
5577 | ||
5578 | if (length != asec->_raw_size) | |
5579 | _bfd_error_handler (_("failed to compute new APUinfo section.")); | |
86bbe32f | 5580 | |
e1a9cb8e NC |
5581 | if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length)) |
5582 | _bfd_error_handler (_("failed to install new APUinfo section.")); | |
86bbe32f | 5583 | |
e1a9cb8e NC |
5584 | free (buffer); |
5585 | ||
5586 | apuinfo_list_finish (); | |
5587 | } | |
5588 | \f | |
252b5132 RH |
5589 | #define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec |
5590 | #define TARGET_LITTLE_NAME "elf32-powerpcle" | |
5591 | #define TARGET_BIG_SYM bfd_elf32_powerpc_vec | |
5592 | #define TARGET_BIG_NAME "elf32-powerpc" | |
5593 | #define ELF_ARCH bfd_arch_powerpc | |
5594 | #define ELF_MACHINE_CODE EM_PPC | |
5595 | #define ELF_MAXPAGESIZE 0x10000 | |
5596 | #define elf_info_to_howto ppc_elf_info_to_howto | |
5597 | ||
5598 | #ifdef EM_CYGNUS_POWERPC | |
5599 | #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC | |
5600 | #endif | |
5601 | ||
5602 | #ifdef EM_PPC_OLD | |
5603 | #define ELF_MACHINE_ALT2 EM_PPC_OLD | |
5604 | #endif | |
5605 | ||
5606 | #define elf_backend_plt_not_loaded 1 | |
5607 | #define elf_backend_got_symbol_offset 4 | |
5608 | #define elf_backend_can_gc_sections 1 | |
51b64d56 | 5609 | #define elf_backend_can_refcount 1 |
252b5132 RH |
5610 | #define elf_backend_got_header_size 12 |
5611 | #define elf_backend_plt_header_size PLT_INITIAL_ENTRY_SIZE | |
b491616a | 5612 | #define elf_backend_rela_normal 1 |
252b5132 | 5613 | |
252b5132 RH |
5614 | #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data |
5615 | #define bfd_elf32_bfd_relax_section ppc_elf_relax_section | |
5616 | #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup | |
5617 | #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags | |
7fce784e | 5618 | #define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create |
252b5132 | 5619 | |
feee612b | 5620 | #define elf_backend_object_p ppc_elf_object_p |
252b5132 RH |
5621 | #define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook |
5622 | #define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook | |
5623 | #define elf_backend_section_from_shdr ppc_elf_section_from_shdr | |
5624 | #define elf_backend_relocate_section ppc_elf_relocate_section | |
5625 | #define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections | |
5626 | #define elf_backend_check_relocs ppc_elf_check_relocs | |
7fce784e | 5627 | #define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol |
252b5132 RH |
5628 | #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol |
5629 | #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook | |
5630 | #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections | |
5631 | #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol | |
5632 | #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections | |
5633 | #define elf_backend_fake_sections ppc_elf_fake_sections | |
5634 | #define elf_backend_additional_program_headers ppc_elf_additional_program_headers | |
5635 | #define elf_backend_modify_segment_map ppc_elf_modify_segment_map | |
c5fccbec DJ |
5636 | #define elf_backend_grok_prstatus ppc_elf_grok_prstatus |
5637 | #define elf_backend_grok_psinfo ppc_elf_grok_psinfo | |
29c2fb7c | 5638 | #define elf_backend_reloc_type_class ppc_elf_reloc_type_class |
e1a9cb8e NC |
5639 | #define elf_backend_begin_write_processing ppc_elf_begin_write_processing |
5640 | #define elf_backend_final_write_processing ppc_elf_final_write_processing | |
5641 | #define elf_backend_write_section ppc_elf_write_section | |
252b5132 RH |
5642 | |
5643 | #include "elf32-target.h" |