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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 | 18 | You should have received a copy of the GNU General Public License |
fc0bffd6 AM |
19 | along with this program; if not, write to the |
20 | Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
252b5132 RH |
22 | |
23 | /* This file is based on a preliminary PowerPC ELF ABI. The | |
24 | information may not match the final PowerPC ELF ABI. It includes | |
25 | suggestions from the in-progress Embedded PowerPC ABI, and that | |
26 | information may also not match. */ | |
27 | ||
28 | #include "bfd.h" | |
29 | #include "sysdep.h" | |
30 | #include "bfdlink.h" | |
31 | #include "libbfd.h" | |
32 | #include "elf-bfd.h" | |
33 | #include "elf/ppc.h" | |
7619e7c7 | 34 | #include "elf32-ppc.h" |
252b5132 | 35 | |
f0fe0e16 | 36 | /* RELA relocations are used here. */ |
252b5132 | 37 | |
252b5132 | 38 | static bfd_reloc_status_type ppc_elf_addr16_ha_reloc |
55fd94b0 | 39 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
7619e7c7 | 40 | static bfd_reloc_status_type ppc_elf_unhandled_reloc |
55fd94b0 | 41 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
252b5132 | 42 | |
70bccea4 AM |
43 | /* Branch prediction bit for branch taken relocs. */ |
44 | #define BRANCH_PREDICT_BIT 0x200000 | |
45 | /* Mask to set RA in memory instructions. */ | |
46 | #define RA_REGISTER_MASK 0x001f0000 | |
47 | /* Value to shift register by to insert RA. */ | |
48 | #define RA_REGISTER_SHIFT 16 | |
252b5132 RH |
49 | |
50 | /* The name of the dynamic interpreter. This is put in the .interp | |
51 | section. */ | |
252b5132 RH |
52 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" |
53 | ||
54 | /* The size in bytes of an entry in the procedure linkage table. */ | |
55 | #define PLT_ENTRY_SIZE 12 | |
56 | /* The initial size of the plt reserved for the dynamic linker. */ | |
57 | #define PLT_INITIAL_ENTRY_SIZE 72 | |
58 | /* The size of the gap between entries in the PLT. */ | |
59 | #define PLT_SLOT_SIZE 8 | |
60 | /* The number of single-slot PLT entries (the rest use two slots). */ | |
61 | #define PLT_NUM_SINGLE_ENTRIES 8192 | |
62 | ||
7619e7c7 AM |
63 | /* Some nop instructions. */ |
64 | #define NOP 0x60000000 | |
65 | #define CROR_151515 0x4def7b82 | |
66 | #define CROR_313131 0x4ffffb82 | |
67 | ||
68 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
69 | #define TP_OFFSET 0x7000 | |
70 | #define DTP_OFFSET 0x8000 | |
71 | ||
252b5132 | 72 | \f |
58111eb7 AM |
73 | /* Enumeration to specify the special section. */ |
74 | enum elf_linker_section_enum | |
75 | { | |
76 | LINKER_SECTION_SDATA, | |
77 | LINKER_SECTION_SDATA2 | |
78 | }; | |
79 | ||
80 | /* Sections created by the linker. */ | |
81 | ||
82 | typedef struct elf_linker_section | |
83 | { | |
84 | /* pointer to the section */ | |
85 | asection *section; | |
86 | /* pointer to the relocations needed for this section */ | |
87 | asection *rel_section; | |
88 | /* pointer to the created symbol hash value */ | |
89 | struct elf_link_hash_entry *sym_hash; | |
90 | /* offset of symbol from beginning of section */ | |
91 | bfd_vma sym_offset; | |
92 | } elf_linker_section_t; | |
93 | ||
94 | /* Linked list of allocated pointer entries. This hangs off of the | |
95 | symbol lists, and provides allows us to return different pointers, | |
96 | based on different addend's. */ | |
97 | ||
98 | typedef struct elf_linker_section_pointers | |
99 | { | |
100 | /* next allocated pointer for this symbol */ | |
101 | struct elf_linker_section_pointers *next; | |
102 | /* offset of pointer from beginning of section */ | |
103 | bfd_vma offset; | |
104 | /* addend used */ | |
105 | bfd_vma addend; | |
106 | /* which linker section this is */ | |
107 | elf_linker_section_t *lsect; | |
108 | /* whether address was written yet */ | |
109 | bfd_boolean written_address_p; | |
110 | } elf_linker_section_pointers_t; | |
111 | ||
43c40ab2 AM |
112 | struct ppc_elf_obj_tdata |
113 | { | |
114 | struct elf_obj_tdata elf; | |
115 | ||
116 | /* A mapping from local symbols to offsets into the various linker | |
117 | sections added. This is index by the symbol index. */ | |
118 | elf_linker_section_pointers_t **linker_section_pointers; | |
119 | }; | |
120 | ||
121 | #define ppc_elf_tdata(bfd) \ | |
122 | ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any) | |
123 | ||
58111eb7 | 124 | #define elf_local_ptr_offsets(bfd) \ |
43c40ab2 AM |
125 | (ppc_elf_tdata (bfd)->linker_section_pointers) |
126 | ||
127 | /* Override the generic function because we store some extras. */ | |
128 | ||
129 | static bfd_boolean | |
130 | ppc_elf_mkobject (bfd *abfd) | |
131 | { | |
132 | bfd_size_type amt = sizeof (struct ppc_elf_obj_tdata); | |
133 | abfd->tdata.any = bfd_zalloc (abfd, amt); | |
134 | if (abfd->tdata.any == NULL) | |
135 | return FALSE; | |
136 | return TRUE; | |
137 | } | |
58111eb7 | 138 | |
7fce784e AS |
139 | /* The PPC linker needs to keep track of the number of relocs that it |
140 | decides to copy as dynamic relocs in check_relocs for each symbol. | |
141 | This is so that it can later discard them if they are found to be | |
142 | unnecessary. We store the information in a field extending the | |
143 | regular ELF linker hash table. */ | |
144 | ||
145 | struct ppc_elf_dyn_relocs | |
146 | { | |
147 | struct ppc_elf_dyn_relocs *next; | |
148 | ||
149 | /* The input section of the reloc. */ | |
150 | asection *sec; | |
151 | ||
152 | /* Total number of relocs copied for the input section. */ | |
153 | bfd_size_type count; | |
ee05f2fe AM |
154 | |
155 | /* Number of pc-relative relocs copied for the input section. */ | |
156 | bfd_size_type pc_count; | |
7fce784e AS |
157 | }; |
158 | ||
159 | /* PPC ELF linker hash entry. */ | |
160 | ||
161 | struct ppc_elf_link_hash_entry | |
162 | { | |
7619e7c7 | 163 | struct elf_link_hash_entry elf; |
7fce784e | 164 | |
58111eb7 AM |
165 | /* If this symbol is used in the linker created sections, the processor |
166 | specific backend uses this field to map the field into the offset | |
167 | from the beginning of the section. */ | |
168 | elf_linker_section_pointers_t *linker_section_pointer; | |
169 | ||
7fce784e AS |
170 | /* Track dynamic relocs copied for this symbol. */ |
171 | struct ppc_elf_dyn_relocs *dyn_relocs; | |
7619e7c7 AM |
172 | |
173 | /* Contexts in which symbol is used in the GOT (or TOC). | |
fc0bffd6 | 174 | TLS_GD .. TLS_TLS bits are or'd into the mask as the |
7619e7c7 AM |
175 | corresponding relocs are encountered during check_relocs. |
176 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
177 | indicate the corresponding GOT entry type is not needed. */ | |
178 | #define TLS_GD 1 /* GD reloc. */ | |
179 | #define TLS_LD 2 /* LD reloc. */ | |
180 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
181 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
182 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
183 | #define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */ | |
184 | char tls_mask; | |
7fce784e AS |
185 | }; |
186 | ||
187 | #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent)) | |
188 | ||
189 | /* PPC ELF linker hash table. */ | |
190 | ||
191 | struct ppc_elf_link_hash_table | |
192 | { | |
7619e7c7 AM |
193 | struct elf_link_hash_table elf; |
194 | ||
195 | /* Short-cuts to get to dynamic linker sections. */ | |
196 | asection *got; | |
197 | asection *relgot; | |
198 | asection *plt; | |
199 | asection *relplt; | |
200 | asection *dynbss; | |
201 | asection *relbss; | |
202 | asection *dynsbss; | |
203 | asection *relsbss; | |
204 | elf_linker_section_t *sdata; | |
205 | elf_linker_section_t *sdata2; | |
58111eb7 | 206 | asection *sbss; |
7619e7c7 | 207 | |
7619e7c7 AM |
208 | /* Shortcut to .__tls_get_addr. */ |
209 | struct elf_link_hash_entry *tls_get_addr; | |
210 | ||
211 | /* TLS local dynamic got entry handling. */ | |
212 | union { | |
213 | bfd_signed_vma refcount; | |
214 | bfd_vma offset; | |
215 | } tlsld_got; | |
7fce784e AS |
216 | |
217 | /* Small local sym to section mapping cache. */ | |
218 | struct sym_sec_cache sym_sec; | |
219 | }; | |
220 | ||
221 | /* Get the PPC ELF linker hash table from a link_info structure. */ | |
222 | ||
223 | #define ppc_elf_hash_table(p) \ | |
224 | ((struct ppc_elf_link_hash_table *) (p)->hash) | |
225 | ||
226 | /* Create an entry in a PPC ELF linker hash table. */ | |
227 | ||
228 | static struct bfd_hash_entry * | |
55fd94b0 AM |
229 | ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry, |
230 | struct bfd_hash_table *table, | |
231 | const char *string) | |
7fce784e AS |
232 | { |
233 | /* Allocate the structure if it has not already been allocated by a | |
234 | subclass. */ | |
235 | if (entry == NULL) | |
236 | { | |
237 | entry = bfd_hash_allocate (table, | |
238 | sizeof (struct ppc_elf_link_hash_entry)); | |
239 | if (entry == NULL) | |
240 | return entry; | |
241 | } | |
242 | ||
243 | /* Call the allocation method of the superclass. */ | |
244 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
245 | if (entry != NULL) | |
7619e7c7 | 246 | { |
58111eb7 | 247 | ppc_elf_hash_entry (entry)->linker_section_pointer = NULL; |
7619e7c7 AM |
248 | ppc_elf_hash_entry (entry)->dyn_relocs = NULL; |
249 | ppc_elf_hash_entry (entry)->tls_mask = 0; | |
250 | } | |
7fce784e AS |
251 | |
252 | return entry; | |
253 | } | |
254 | ||
255 | /* Create a PPC ELF linker hash table. */ | |
256 | ||
257 | static struct bfd_link_hash_table * | |
55fd94b0 | 258 | ppc_elf_link_hash_table_create (bfd *abfd) |
7fce784e AS |
259 | { |
260 | struct ppc_elf_link_hash_table *ret; | |
261 | ||
58111eb7 | 262 | ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table)); |
7fce784e AS |
263 | if (ret == NULL) |
264 | return NULL; | |
265 | ||
7619e7c7 | 266 | if (! _bfd_elf_link_hash_table_init (&ret->elf, abfd, |
7fce784e AS |
267 | ppc_elf_link_hash_newfunc)) |
268 | { | |
269 | free (ret); | |
270 | return NULL; | |
271 | } | |
272 | ||
7619e7c7 | 273 | return &ret->elf.root; |
7fce784e AS |
274 | } |
275 | ||
fc0bffd6 AM |
276 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
277 | copying dynamic variables from a shared lib into an app's dynbss | |
278 | section, and instead use a dynamic relocation to point into the | |
279 | shared lib. */ | |
280 | #define ELIMINATE_COPY_RELOCS 1 | |
281 | ||
7fce784e AS |
282 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
283 | ||
284 | static void | |
9c5bfbb7 | 285 | ppc_elf_copy_indirect_symbol (const struct elf_backend_data *bed, |
55fd94b0 AM |
286 | struct elf_link_hash_entry *dir, |
287 | struct elf_link_hash_entry *ind) | |
7fce784e AS |
288 | { |
289 | struct ppc_elf_link_hash_entry *edir, *eind; | |
290 | ||
291 | edir = (struct ppc_elf_link_hash_entry *) dir; | |
292 | eind = (struct ppc_elf_link_hash_entry *) ind; | |
293 | ||
294 | if (eind->dyn_relocs != NULL) | |
295 | { | |
296 | if (edir->dyn_relocs != NULL) | |
297 | { | |
298 | struct ppc_elf_dyn_relocs **pp; | |
299 | struct ppc_elf_dyn_relocs *p; | |
300 | ||
301 | if (ind->root.type == bfd_link_hash_indirect) | |
302 | abort (); | |
303 | ||
304 | /* Add reloc counts against the weak sym to the strong sym | |
305 | list. Merge any entries against the same section. */ | |
306 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
307 | { | |
308 | struct ppc_elf_dyn_relocs *q; | |
309 | ||
310 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
311 | if (q->sec == p->sec) | |
312 | { | |
ee05f2fe | 313 | q->pc_count += p->pc_count; |
7fce784e AS |
314 | q->count += p->count; |
315 | *pp = p->next; | |
316 | break; | |
317 | } | |
318 | if (q == NULL) | |
319 | pp = &p->next; | |
320 | } | |
321 | *pp = edir->dyn_relocs; | |
322 | } | |
323 | ||
324 | edir->dyn_relocs = eind->dyn_relocs; | |
325 | eind->dyn_relocs = NULL; | |
326 | } | |
327 | ||
7619e7c7 AM |
328 | edir->tls_mask |= eind->tls_mask; |
329 | ||
81848ca0 AM |
330 | if (ELIMINATE_COPY_RELOCS |
331 | && ind->root.type != bfd_link_hash_indirect | |
332 | && (dir->elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0) | |
fc0bffd6 AM |
333 | /* If called to transfer flags for a weakdef during processing |
334 | of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF. | |
335 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
336 | dir->elf_link_hash_flags |= | |
337 | (ind->elf_link_hash_flags & (ELF_LINK_HASH_REF_DYNAMIC | |
338 | | ELF_LINK_HASH_REF_REGULAR | |
339 | | ELF_LINK_HASH_REF_REGULAR_NONWEAK)); | |
340 | else | |
341 | _bfd_elf_link_hash_copy_indirect (bed, dir, ind); | |
7fce784e AS |
342 | } |
343 | \f | |
e47cd125 | 344 | static reloc_howto_type *ppc_elf_howto_table[R_PPC_max]; |
252b5132 | 345 | |
8da6118f | 346 | static reloc_howto_type ppc_elf_howto_raw[] = { |
252b5132 RH |
347 | /* This reloc does nothing. */ |
348 | HOWTO (R_PPC_NONE, /* type */ | |
349 | 0, /* rightshift */ | |
350 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
351 | 32, /* bitsize */ | |
b34976b6 | 352 | FALSE, /* pc_relative */ |
252b5132 RH |
353 | 0, /* bitpos */ |
354 | complain_overflow_bitfield, /* complain_on_overflow */ | |
355 | bfd_elf_generic_reloc, /* special_function */ | |
356 | "R_PPC_NONE", /* name */ | |
b34976b6 | 357 | FALSE, /* partial_inplace */ |
252b5132 RH |
358 | 0, /* src_mask */ |
359 | 0, /* dst_mask */ | |
b34976b6 | 360 | FALSE), /* pcrel_offset */ |
252b5132 RH |
361 | |
362 | /* A standard 32 bit relocation. */ | |
363 | HOWTO (R_PPC_ADDR32, /* type */ | |
364 | 0, /* rightshift */ | |
365 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
366 | 32, /* bitsize */ | |
b34976b6 | 367 | FALSE, /* pc_relative */ |
252b5132 RH |
368 | 0, /* bitpos */ |
369 | complain_overflow_bitfield, /* complain_on_overflow */ | |
370 | bfd_elf_generic_reloc, /* special_function */ | |
371 | "R_PPC_ADDR32", /* name */ | |
b34976b6 | 372 | FALSE, /* partial_inplace */ |
252b5132 RH |
373 | 0, /* src_mask */ |
374 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 375 | FALSE), /* pcrel_offset */ |
252b5132 RH |
376 | |
377 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
378 | FIXME: we don't check that, we just clear them. */ | |
379 | HOWTO (R_PPC_ADDR24, /* type */ | |
380 | 0, /* rightshift */ | |
381 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
382 | 26, /* bitsize */ | |
b34976b6 | 383 | FALSE, /* pc_relative */ |
252b5132 RH |
384 | 0, /* bitpos */ |
385 | complain_overflow_bitfield, /* complain_on_overflow */ | |
386 | bfd_elf_generic_reloc, /* special_function */ | |
387 | "R_PPC_ADDR24", /* name */ | |
b34976b6 | 388 | FALSE, /* partial_inplace */ |
252b5132 RH |
389 | 0, /* src_mask */ |
390 | 0x3fffffc, /* dst_mask */ | |
b34976b6 | 391 | FALSE), /* pcrel_offset */ |
252b5132 RH |
392 | |
393 | /* A standard 16 bit relocation. */ | |
394 | HOWTO (R_PPC_ADDR16, /* type */ | |
395 | 0, /* rightshift */ | |
396 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
397 | 16, /* bitsize */ | |
b34976b6 | 398 | FALSE, /* pc_relative */ |
252b5132 RH |
399 | 0, /* bitpos */ |
400 | complain_overflow_bitfield, /* complain_on_overflow */ | |
401 | bfd_elf_generic_reloc, /* special_function */ | |
402 | "R_PPC_ADDR16", /* name */ | |
b34976b6 | 403 | FALSE, /* partial_inplace */ |
252b5132 RH |
404 | 0, /* src_mask */ |
405 | 0xffff, /* dst_mask */ | |
b34976b6 | 406 | FALSE), /* pcrel_offset */ |
252b5132 RH |
407 | |
408 | /* A 16 bit relocation without overflow. */ | |
409 | HOWTO (R_PPC_ADDR16_LO, /* type */ | |
410 | 0, /* rightshift */ | |
411 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
412 | 16, /* bitsize */ | |
b34976b6 | 413 | FALSE, /* pc_relative */ |
252b5132 RH |
414 | 0, /* bitpos */ |
415 | complain_overflow_dont,/* complain_on_overflow */ | |
416 | bfd_elf_generic_reloc, /* special_function */ | |
417 | "R_PPC_ADDR16_LO", /* name */ | |
b34976b6 | 418 | FALSE, /* partial_inplace */ |
252b5132 RH |
419 | 0, /* src_mask */ |
420 | 0xffff, /* dst_mask */ | |
b34976b6 | 421 | FALSE), /* pcrel_offset */ |
252b5132 RH |
422 | |
423 | /* The high order 16 bits of an address. */ | |
424 | HOWTO (R_PPC_ADDR16_HI, /* type */ | |
425 | 16, /* rightshift */ | |
426 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
427 | 16, /* bitsize */ | |
b34976b6 | 428 | FALSE, /* pc_relative */ |
252b5132 RH |
429 | 0, /* bitpos */ |
430 | complain_overflow_dont, /* complain_on_overflow */ | |
431 | bfd_elf_generic_reloc, /* special_function */ | |
432 | "R_PPC_ADDR16_HI", /* name */ | |
b34976b6 | 433 | FALSE, /* partial_inplace */ |
252b5132 RH |
434 | 0, /* src_mask */ |
435 | 0xffff, /* dst_mask */ | |
b34976b6 | 436 | FALSE), /* pcrel_offset */ |
252b5132 RH |
437 | |
438 | /* The high order 16 bits of an address, plus 1 if the contents of | |
8da6118f | 439 | the low 16 bits, treated as a signed number, is negative. */ |
252b5132 RH |
440 | HOWTO (R_PPC_ADDR16_HA, /* type */ |
441 | 16, /* rightshift */ | |
442 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
443 | 16, /* bitsize */ | |
b34976b6 | 444 | FALSE, /* pc_relative */ |
252b5132 RH |
445 | 0, /* bitpos */ |
446 | complain_overflow_dont, /* complain_on_overflow */ | |
447 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
448 | "R_PPC_ADDR16_HA", /* name */ | |
b34976b6 | 449 | FALSE, /* partial_inplace */ |
252b5132 RH |
450 | 0, /* src_mask */ |
451 | 0xffff, /* dst_mask */ | |
b34976b6 | 452 | FALSE), /* pcrel_offset */ |
252b5132 RH |
453 | |
454 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
455 | FIXME: we don't check that, we just clear them. */ | |
456 | HOWTO (R_PPC_ADDR14, /* type */ | |
457 | 0, /* rightshift */ | |
458 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
459 | 16, /* bitsize */ | |
b34976b6 | 460 | FALSE, /* pc_relative */ |
252b5132 RH |
461 | 0, /* bitpos */ |
462 | complain_overflow_bitfield, /* complain_on_overflow */ | |
463 | bfd_elf_generic_reloc, /* special_function */ | |
464 | "R_PPC_ADDR14", /* name */ | |
b34976b6 | 465 | FALSE, /* partial_inplace */ |
252b5132 RH |
466 | 0, /* src_mask */ |
467 | 0xfffc, /* dst_mask */ | |
b34976b6 | 468 | FALSE), /* pcrel_offset */ |
252b5132 RH |
469 | |
470 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
471 | indicate that the branch is expected to be taken. The lower two | |
8da6118f | 472 | bits must be zero. */ |
252b5132 RH |
473 | HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */ |
474 | 0, /* rightshift */ | |
475 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
476 | 16, /* bitsize */ | |
b34976b6 | 477 | FALSE, /* pc_relative */ |
252b5132 RH |
478 | 0, /* bitpos */ |
479 | complain_overflow_bitfield, /* complain_on_overflow */ | |
480 | bfd_elf_generic_reloc, /* special_function */ | |
481 | "R_PPC_ADDR14_BRTAKEN",/* name */ | |
b34976b6 | 482 | FALSE, /* partial_inplace */ |
252b5132 RH |
483 | 0, /* src_mask */ |
484 | 0xfffc, /* dst_mask */ | |
b34976b6 | 485 | FALSE), /* pcrel_offset */ |
252b5132 RH |
486 | |
487 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
488 | indicate that the branch is not expected to be taken. The lower | |
489 | two bits must be zero. */ | |
490 | HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */ | |
491 | 0, /* rightshift */ | |
492 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
493 | 16, /* bitsize */ | |
b34976b6 | 494 | FALSE, /* pc_relative */ |
252b5132 RH |
495 | 0, /* bitpos */ |
496 | complain_overflow_bitfield, /* complain_on_overflow */ | |
497 | bfd_elf_generic_reloc, /* special_function */ | |
498 | "R_PPC_ADDR14_BRNTAKEN",/* name */ | |
b34976b6 | 499 | FALSE, /* partial_inplace */ |
252b5132 RH |
500 | 0, /* src_mask */ |
501 | 0xfffc, /* dst_mask */ | |
b34976b6 | 502 | FALSE), /* pcrel_offset */ |
252b5132 | 503 | |
8da6118f | 504 | /* A relative 26 bit branch; the lower two bits must be zero. */ |
252b5132 RH |
505 | HOWTO (R_PPC_REL24, /* type */ |
506 | 0, /* rightshift */ | |
507 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
508 | 26, /* bitsize */ | |
b34976b6 | 509 | TRUE, /* pc_relative */ |
252b5132 RH |
510 | 0, /* bitpos */ |
511 | complain_overflow_signed, /* complain_on_overflow */ | |
512 | bfd_elf_generic_reloc, /* special_function */ | |
513 | "R_PPC_REL24", /* name */ | |
b34976b6 | 514 | FALSE, /* partial_inplace */ |
252b5132 RH |
515 | 0, /* src_mask */ |
516 | 0x3fffffc, /* dst_mask */ | |
b34976b6 | 517 | TRUE), /* pcrel_offset */ |
252b5132 | 518 | |
8da6118f | 519 | /* A relative 16 bit branch; the lower two bits must be zero. */ |
252b5132 RH |
520 | HOWTO (R_PPC_REL14, /* type */ |
521 | 0, /* rightshift */ | |
522 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
523 | 16, /* bitsize */ | |
b34976b6 | 524 | TRUE, /* pc_relative */ |
252b5132 RH |
525 | 0, /* bitpos */ |
526 | complain_overflow_signed, /* complain_on_overflow */ | |
527 | bfd_elf_generic_reloc, /* special_function */ | |
528 | "R_PPC_REL14", /* name */ | |
b34976b6 | 529 | FALSE, /* partial_inplace */ |
252b5132 RH |
530 | 0, /* src_mask */ |
531 | 0xfffc, /* dst_mask */ | |
b34976b6 | 532 | TRUE), /* pcrel_offset */ |
252b5132 | 533 | |
8da6118f | 534 | /* A relative 16 bit branch. Bit 10 should be set to indicate that |
252b5132 RH |
535 | the branch is expected to be taken. The lower two bits must be |
536 | zero. */ | |
537 | HOWTO (R_PPC_REL14_BRTAKEN, /* type */ | |
538 | 0, /* rightshift */ | |
539 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
540 | 16, /* bitsize */ | |
b34976b6 | 541 | TRUE, /* pc_relative */ |
252b5132 RH |
542 | 0, /* bitpos */ |
543 | complain_overflow_signed, /* complain_on_overflow */ | |
544 | bfd_elf_generic_reloc, /* special_function */ | |
545 | "R_PPC_REL14_BRTAKEN", /* name */ | |
b34976b6 | 546 | FALSE, /* partial_inplace */ |
252b5132 RH |
547 | 0, /* src_mask */ |
548 | 0xfffc, /* dst_mask */ | |
b34976b6 | 549 | TRUE), /* pcrel_offset */ |
252b5132 | 550 | |
8da6118f | 551 | /* A relative 16 bit branch. Bit 10 should be set to indicate that |
252b5132 RH |
552 | the branch is not expected to be taken. The lower two bits must |
553 | be zero. */ | |
554 | HOWTO (R_PPC_REL14_BRNTAKEN, /* type */ | |
555 | 0, /* rightshift */ | |
556 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
557 | 16, /* bitsize */ | |
b34976b6 | 558 | TRUE, /* pc_relative */ |
252b5132 RH |
559 | 0, /* bitpos */ |
560 | complain_overflow_signed, /* complain_on_overflow */ | |
561 | bfd_elf_generic_reloc, /* special_function */ | |
562 | "R_PPC_REL14_BRNTAKEN",/* name */ | |
b34976b6 | 563 | FALSE, /* partial_inplace */ |
252b5132 RH |
564 | 0, /* src_mask */ |
565 | 0xfffc, /* dst_mask */ | |
b34976b6 | 566 | TRUE), /* pcrel_offset */ |
252b5132 RH |
567 | |
568 | /* Like R_PPC_ADDR16, but referring to the GOT table entry for the | |
569 | symbol. */ | |
570 | HOWTO (R_PPC_GOT16, /* type */ | |
571 | 0, /* rightshift */ | |
572 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
573 | 16, /* bitsize */ | |
b34976b6 | 574 | FALSE, /* pc_relative */ |
252b5132 RH |
575 | 0, /* bitpos */ |
576 | complain_overflow_signed, /* complain_on_overflow */ | |
577 | bfd_elf_generic_reloc, /* special_function */ | |
578 | "R_PPC_GOT16", /* name */ | |
b34976b6 | 579 | FALSE, /* partial_inplace */ |
252b5132 RH |
580 | 0, /* src_mask */ |
581 | 0xffff, /* dst_mask */ | |
b34976b6 | 582 | FALSE), /* pcrel_offset */ |
252b5132 RH |
583 | |
584 | /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for | |
585 | the symbol. */ | |
586 | HOWTO (R_PPC_GOT16_LO, /* type */ | |
587 | 0, /* rightshift */ | |
588 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
589 | 16, /* bitsize */ | |
b34976b6 | 590 | FALSE, /* pc_relative */ |
252b5132 RH |
591 | 0, /* bitpos */ |
592 | complain_overflow_dont, /* complain_on_overflow */ | |
593 | bfd_elf_generic_reloc, /* special_function */ | |
594 | "R_PPC_GOT16_LO", /* name */ | |
b34976b6 | 595 | FALSE, /* partial_inplace */ |
252b5132 RH |
596 | 0, /* src_mask */ |
597 | 0xffff, /* dst_mask */ | |
b34976b6 | 598 | FALSE), /* pcrel_offset */ |
252b5132 RH |
599 | |
600 | /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for | |
601 | the symbol. */ | |
602 | HOWTO (R_PPC_GOT16_HI, /* type */ | |
603 | 16, /* rightshift */ | |
604 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
605 | 16, /* bitsize */ | |
b34976b6 | 606 | FALSE, /* pc_relative */ |
252b5132 RH |
607 | 0, /* bitpos */ |
608 | complain_overflow_bitfield, /* complain_on_overflow */ | |
609 | bfd_elf_generic_reloc, /* special_function */ | |
610 | "R_PPC_GOT16_HI", /* name */ | |
b34976b6 | 611 | FALSE, /* partial_inplace */ |
252b5132 RH |
612 | 0, /* src_mask */ |
613 | 0xffff, /* dst_mask */ | |
b34976b6 | 614 | FALSE), /* pcrel_offset */ |
252b5132 RH |
615 | |
616 | /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for | |
617 | the symbol. */ | |
618 | HOWTO (R_PPC_GOT16_HA, /* type */ | |
619 | 16, /* rightshift */ | |
620 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
621 | 16, /* bitsize */ | |
b34976b6 | 622 | FALSE, /* pc_relative */ |
252b5132 RH |
623 | 0, /* bitpos */ |
624 | complain_overflow_bitfield, /* complain_on_overflow */ | |
625 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
626 | "R_PPC_GOT16_HA", /* name */ | |
b34976b6 | 627 | FALSE, /* partial_inplace */ |
252b5132 RH |
628 | 0, /* src_mask */ |
629 | 0xffff, /* dst_mask */ | |
b34976b6 | 630 | FALSE), /* pcrel_offset */ |
252b5132 RH |
631 | |
632 | /* Like R_PPC_REL24, but referring to the procedure linkage table | |
633 | entry for the symbol. */ | |
634 | HOWTO (R_PPC_PLTREL24, /* type */ | |
635 | 0, /* rightshift */ | |
636 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
637 | 26, /* bitsize */ | |
b34976b6 | 638 | TRUE, /* pc_relative */ |
252b5132 RH |
639 | 0, /* bitpos */ |
640 | complain_overflow_signed, /* complain_on_overflow */ | |
641 | bfd_elf_generic_reloc, /* special_function */ | |
642 | "R_PPC_PLTREL24", /* name */ | |
b34976b6 | 643 | FALSE, /* partial_inplace */ |
252b5132 RH |
644 | 0, /* src_mask */ |
645 | 0x3fffffc, /* dst_mask */ | |
b34976b6 | 646 | TRUE), /* pcrel_offset */ |
252b5132 RH |
647 | |
648 | /* This is used only by the dynamic linker. The symbol should exist | |
649 | both in the object being run and in some shared library. The | |
650 | dynamic linker copies the data addressed by the symbol from the | |
651 | shared library into the object, because the object being | |
652 | run has to have the data at some particular address. */ | |
653 | HOWTO (R_PPC_COPY, /* type */ | |
654 | 0, /* rightshift */ | |
655 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
656 | 32, /* bitsize */ | |
b34976b6 | 657 | FALSE, /* pc_relative */ |
252b5132 RH |
658 | 0, /* bitpos */ |
659 | complain_overflow_bitfield, /* complain_on_overflow */ | |
660 | bfd_elf_generic_reloc, /* special_function */ | |
661 | "R_PPC_COPY", /* name */ | |
b34976b6 | 662 | FALSE, /* partial_inplace */ |
252b5132 RH |
663 | 0, /* src_mask */ |
664 | 0, /* dst_mask */ | |
b34976b6 | 665 | FALSE), /* pcrel_offset */ |
252b5132 RH |
666 | |
667 | /* Like R_PPC_ADDR32, but used when setting global offset table | |
668 | entries. */ | |
669 | HOWTO (R_PPC_GLOB_DAT, /* type */ | |
670 | 0, /* rightshift */ | |
671 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
672 | 32, /* bitsize */ | |
b34976b6 | 673 | FALSE, /* pc_relative */ |
252b5132 RH |
674 | 0, /* bitpos */ |
675 | complain_overflow_bitfield, /* complain_on_overflow */ | |
676 | bfd_elf_generic_reloc, /* special_function */ | |
677 | "R_PPC_GLOB_DAT", /* name */ | |
b34976b6 | 678 | FALSE, /* partial_inplace */ |
252b5132 RH |
679 | 0, /* src_mask */ |
680 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 681 | FALSE), /* pcrel_offset */ |
252b5132 RH |
682 | |
683 | /* Marks a procedure linkage table entry for a symbol. */ | |
684 | HOWTO (R_PPC_JMP_SLOT, /* type */ | |
685 | 0, /* rightshift */ | |
686 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
687 | 32, /* bitsize */ | |
b34976b6 | 688 | FALSE, /* pc_relative */ |
252b5132 RH |
689 | 0, /* bitpos */ |
690 | complain_overflow_bitfield, /* complain_on_overflow */ | |
691 | bfd_elf_generic_reloc, /* special_function */ | |
692 | "R_PPC_JMP_SLOT", /* name */ | |
b34976b6 | 693 | FALSE, /* partial_inplace */ |
252b5132 RH |
694 | 0, /* src_mask */ |
695 | 0, /* dst_mask */ | |
b34976b6 | 696 | FALSE), /* pcrel_offset */ |
252b5132 RH |
697 | |
698 | /* Used only by the dynamic linker. When the object is run, this | |
699 | longword is set to the load address of the object, plus the | |
700 | addend. */ | |
701 | HOWTO (R_PPC_RELATIVE, /* type */ | |
702 | 0, /* rightshift */ | |
703 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
704 | 32, /* bitsize */ | |
b34976b6 | 705 | FALSE, /* pc_relative */ |
252b5132 RH |
706 | 0, /* bitpos */ |
707 | complain_overflow_bitfield, /* complain_on_overflow */ | |
708 | bfd_elf_generic_reloc, /* special_function */ | |
709 | "R_PPC_RELATIVE", /* name */ | |
b34976b6 | 710 | FALSE, /* partial_inplace */ |
252b5132 RH |
711 | 0, /* src_mask */ |
712 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 713 | FALSE), /* pcrel_offset */ |
252b5132 RH |
714 | |
715 | /* Like R_PPC_REL24, but uses the value of the symbol within the | |
716 | object rather than the final value. Normally used for | |
717 | _GLOBAL_OFFSET_TABLE_. */ | |
718 | HOWTO (R_PPC_LOCAL24PC, /* type */ | |
719 | 0, /* rightshift */ | |
720 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
721 | 26, /* bitsize */ | |
b34976b6 | 722 | TRUE, /* pc_relative */ |
252b5132 RH |
723 | 0, /* bitpos */ |
724 | complain_overflow_signed, /* complain_on_overflow */ | |
725 | bfd_elf_generic_reloc, /* special_function */ | |
726 | "R_PPC_LOCAL24PC", /* name */ | |
b34976b6 | 727 | FALSE, /* partial_inplace */ |
252b5132 RH |
728 | 0, /* src_mask */ |
729 | 0x3fffffc, /* dst_mask */ | |
b34976b6 | 730 | TRUE), /* pcrel_offset */ |
252b5132 RH |
731 | |
732 | /* Like R_PPC_ADDR32, but may be unaligned. */ | |
733 | HOWTO (R_PPC_UADDR32, /* type */ | |
734 | 0, /* rightshift */ | |
735 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
736 | 32, /* bitsize */ | |
b34976b6 | 737 | FALSE, /* pc_relative */ |
252b5132 RH |
738 | 0, /* bitpos */ |
739 | complain_overflow_bitfield, /* complain_on_overflow */ | |
740 | bfd_elf_generic_reloc, /* special_function */ | |
741 | "R_PPC_UADDR32", /* name */ | |
b34976b6 | 742 | FALSE, /* partial_inplace */ |
252b5132 RH |
743 | 0, /* src_mask */ |
744 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 745 | FALSE), /* pcrel_offset */ |
252b5132 RH |
746 | |
747 | /* Like R_PPC_ADDR16, but may be unaligned. */ | |
748 | HOWTO (R_PPC_UADDR16, /* type */ | |
749 | 0, /* rightshift */ | |
750 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
751 | 16, /* bitsize */ | |
b34976b6 | 752 | FALSE, /* pc_relative */ |
252b5132 RH |
753 | 0, /* bitpos */ |
754 | complain_overflow_bitfield, /* complain_on_overflow */ | |
755 | bfd_elf_generic_reloc, /* special_function */ | |
756 | "R_PPC_UADDR16", /* name */ | |
b34976b6 | 757 | FALSE, /* partial_inplace */ |
252b5132 RH |
758 | 0, /* src_mask */ |
759 | 0xffff, /* dst_mask */ | |
b34976b6 | 760 | FALSE), /* pcrel_offset */ |
252b5132 RH |
761 | |
762 | /* 32-bit PC relative */ | |
763 | HOWTO (R_PPC_REL32, /* type */ | |
764 | 0, /* rightshift */ | |
765 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
766 | 32, /* bitsize */ | |
b34976b6 | 767 | TRUE, /* pc_relative */ |
252b5132 RH |
768 | 0, /* bitpos */ |
769 | complain_overflow_bitfield, /* complain_on_overflow */ | |
770 | bfd_elf_generic_reloc, /* special_function */ | |
771 | "R_PPC_REL32", /* name */ | |
b34976b6 | 772 | FALSE, /* partial_inplace */ |
252b5132 RH |
773 | 0, /* src_mask */ |
774 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 775 | TRUE), /* pcrel_offset */ |
252b5132 RH |
776 | |
777 | /* 32-bit relocation to the symbol's procedure linkage table. | |
c3668558 | 778 | FIXME: not supported. */ |
252b5132 RH |
779 | HOWTO (R_PPC_PLT32, /* type */ |
780 | 0, /* rightshift */ | |
781 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
782 | 32, /* bitsize */ | |
b34976b6 | 783 | FALSE, /* pc_relative */ |
252b5132 RH |
784 | 0, /* bitpos */ |
785 | complain_overflow_bitfield, /* complain_on_overflow */ | |
786 | bfd_elf_generic_reloc, /* special_function */ | |
787 | "R_PPC_PLT32", /* name */ | |
b34976b6 | 788 | FALSE, /* partial_inplace */ |
252b5132 RH |
789 | 0, /* src_mask */ |
790 | 0, /* dst_mask */ | |
b34976b6 | 791 | FALSE), /* pcrel_offset */ |
252b5132 RH |
792 | |
793 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
c3668558 | 794 | FIXME: not supported. */ |
252b5132 RH |
795 | HOWTO (R_PPC_PLTREL32, /* type */ |
796 | 0, /* rightshift */ | |
797 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
798 | 32, /* bitsize */ | |
b34976b6 | 799 | TRUE, /* pc_relative */ |
252b5132 RH |
800 | 0, /* bitpos */ |
801 | complain_overflow_bitfield, /* complain_on_overflow */ | |
802 | bfd_elf_generic_reloc, /* special_function */ | |
803 | "R_PPC_PLTREL32", /* name */ | |
b34976b6 | 804 | FALSE, /* partial_inplace */ |
252b5132 RH |
805 | 0, /* src_mask */ |
806 | 0, /* dst_mask */ | |
b34976b6 | 807 | TRUE), /* pcrel_offset */ |
252b5132 RH |
808 | |
809 | /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for | |
810 | the symbol. */ | |
811 | HOWTO (R_PPC_PLT16_LO, /* type */ | |
812 | 0, /* rightshift */ | |
813 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
814 | 16, /* bitsize */ | |
b34976b6 | 815 | FALSE, /* pc_relative */ |
252b5132 RH |
816 | 0, /* bitpos */ |
817 | complain_overflow_dont, /* complain_on_overflow */ | |
818 | bfd_elf_generic_reloc, /* special_function */ | |
819 | "R_PPC_PLT16_LO", /* name */ | |
b34976b6 | 820 | FALSE, /* partial_inplace */ |
252b5132 RH |
821 | 0, /* src_mask */ |
822 | 0xffff, /* dst_mask */ | |
b34976b6 | 823 | FALSE), /* pcrel_offset */ |
252b5132 RH |
824 | |
825 | /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for | |
826 | the symbol. */ | |
827 | HOWTO (R_PPC_PLT16_HI, /* type */ | |
828 | 16, /* rightshift */ | |
829 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
830 | 16, /* bitsize */ | |
b34976b6 | 831 | FALSE, /* pc_relative */ |
252b5132 RH |
832 | 0, /* bitpos */ |
833 | complain_overflow_bitfield, /* complain_on_overflow */ | |
834 | bfd_elf_generic_reloc, /* special_function */ | |
835 | "R_PPC_PLT16_HI", /* name */ | |
b34976b6 | 836 | FALSE, /* partial_inplace */ |
252b5132 RH |
837 | 0, /* src_mask */ |
838 | 0xffff, /* dst_mask */ | |
b34976b6 | 839 | FALSE), /* pcrel_offset */ |
252b5132 RH |
840 | |
841 | /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for | |
842 | the symbol. */ | |
843 | HOWTO (R_PPC_PLT16_HA, /* type */ | |
844 | 16, /* rightshift */ | |
845 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
846 | 16, /* bitsize */ | |
b34976b6 | 847 | FALSE, /* pc_relative */ |
252b5132 RH |
848 | 0, /* bitpos */ |
849 | complain_overflow_bitfield, /* complain_on_overflow */ | |
850 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
851 | "R_PPC_PLT16_HA", /* name */ | |
b34976b6 | 852 | FALSE, /* partial_inplace */ |
252b5132 RH |
853 | 0, /* src_mask */ |
854 | 0xffff, /* dst_mask */ | |
b34976b6 | 855 | FALSE), /* pcrel_offset */ |
252b5132 RH |
856 | |
857 | /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with | |
858 | small data items. */ | |
859 | HOWTO (R_PPC_SDAREL16, /* type */ | |
860 | 0, /* rightshift */ | |
861 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
862 | 16, /* bitsize */ | |
b34976b6 | 863 | FALSE, /* pc_relative */ |
252b5132 RH |
864 | 0, /* bitpos */ |
865 | complain_overflow_signed, /* complain_on_overflow */ | |
866 | bfd_elf_generic_reloc, /* special_function */ | |
867 | "R_PPC_SDAREL16", /* name */ | |
b34976b6 | 868 | FALSE, /* partial_inplace */ |
252b5132 RH |
869 | 0, /* src_mask */ |
870 | 0xffff, /* dst_mask */ | |
b34976b6 | 871 | FALSE), /* pcrel_offset */ |
252b5132 | 872 | |
c061c2d8 | 873 | /* 16-bit section relative relocation. */ |
252b5132 RH |
874 | HOWTO (R_PPC_SECTOFF, /* type */ |
875 | 0, /* rightshift */ | |
c061c2d8 AM |
876 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
877 | 16, /* bitsize */ | |
b34976b6 | 878 | FALSE, /* pc_relative */ |
252b5132 RH |
879 | 0, /* bitpos */ |
880 | complain_overflow_bitfield, /* complain_on_overflow */ | |
881 | bfd_elf_generic_reloc, /* special_function */ | |
882 | "R_PPC_SECTOFF", /* name */ | |
b34976b6 | 883 | FALSE, /* partial_inplace */ |
252b5132 | 884 | 0, /* src_mask */ |
c061c2d8 | 885 | 0xffff, /* dst_mask */ |
b34976b6 | 886 | FALSE), /* pcrel_offset */ |
252b5132 | 887 | |
c3668558 | 888 | /* 16-bit lower half section relative relocation. */ |
252b5132 RH |
889 | HOWTO (R_PPC_SECTOFF_LO, /* type */ |
890 | 0, /* rightshift */ | |
891 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
892 | 16, /* bitsize */ | |
b34976b6 | 893 | FALSE, /* pc_relative */ |
252b5132 RH |
894 | 0, /* bitpos */ |
895 | complain_overflow_dont, /* complain_on_overflow */ | |
896 | bfd_elf_generic_reloc, /* special_function */ | |
897 | "R_PPC_SECTOFF_LO", /* name */ | |
b34976b6 | 898 | FALSE, /* partial_inplace */ |
252b5132 RH |
899 | 0, /* src_mask */ |
900 | 0xffff, /* dst_mask */ | |
b34976b6 | 901 | FALSE), /* pcrel_offset */ |
252b5132 | 902 | |
c3668558 | 903 | /* 16-bit upper half section relative relocation. */ |
252b5132 RH |
904 | HOWTO (R_PPC_SECTOFF_HI, /* type */ |
905 | 16, /* rightshift */ | |
906 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
907 | 16, /* bitsize */ | |
b34976b6 | 908 | FALSE, /* pc_relative */ |
252b5132 RH |
909 | 0, /* bitpos */ |
910 | complain_overflow_bitfield, /* complain_on_overflow */ | |
911 | bfd_elf_generic_reloc, /* special_function */ | |
912 | "R_PPC_SECTOFF_HI", /* name */ | |
b34976b6 | 913 | FALSE, /* partial_inplace */ |
252b5132 RH |
914 | 0, /* src_mask */ |
915 | 0xffff, /* dst_mask */ | |
b34976b6 | 916 | FALSE), /* pcrel_offset */ |
252b5132 | 917 | |
c3668558 | 918 | /* 16-bit upper half adjusted section relative relocation. */ |
252b5132 RH |
919 | HOWTO (R_PPC_SECTOFF_HA, /* type */ |
920 | 16, /* rightshift */ | |
921 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
922 | 16, /* bitsize */ | |
b34976b6 | 923 | FALSE, /* pc_relative */ |
252b5132 RH |
924 | 0, /* bitpos */ |
925 | complain_overflow_bitfield, /* complain_on_overflow */ | |
926 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
927 | "R_PPC_SECTOFF_HA", /* name */ | |
b34976b6 | 928 | FALSE, /* partial_inplace */ |
252b5132 RH |
929 | 0, /* src_mask */ |
930 | 0xffff, /* dst_mask */ | |
b34976b6 | 931 | FALSE), /* pcrel_offset */ |
252b5132 | 932 | |
7619e7c7 AM |
933 | /* Marker reloc for TLS. */ |
934 | HOWTO (R_PPC_TLS, | |
252b5132 RH |
935 | 0, /* rightshift */ |
936 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
937 | 32, /* bitsize */ | |
b34976b6 | 938 | FALSE, /* pc_relative */ |
252b5132 | 939 | 0, /* bitpos */ |
7619e7c7 | 940 | complain_overflow_dont, /* complain_on_overflow */ |
252b5132 | 941 | bfd_elf_generic_reloc, /* special_function */ |
7619e7c7 AM |
942 | "R_PPC_TLS", /* name */ |
943 | FALSE, /* partial_inplace */ | |
944 | 0, /* src_mask */ | |
945 | 0, /* dst_mask */ | |
946 | FALSE), /* pcrel_offset */ | |
947 | ||
948 | /* Computes the load module index of the load module that contains the | |
949 | definition of its TLS sym. */ | |
950 | HOWTO (R_PPC_DTPMOD32, | |
951 | 0, /* rightshift */ | |
952 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
953 | 32, /* bitsize */ | |
954 | FALSE, /* pc_relative */ | |
955 | 0, /* bitpos */ | |
956 | complain_overflow_dont, /* complain_on_overflow */ | |
957 | ppc_elf_unhandled_reloc, /* special_function */ | |
958 | "R_PPC_DTPMOD32", /* name */ | |
b34976b6 | 959 | FALSE, /* partial_inplace */ |
252b5132 RH |
960 | 0, /* src_mask */ |
961 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 962 | FALSE), /* pcrel_offset */ |
252b5132 | 963 | |
7619e7c7 AM |
964 | /* Computes a dtv-relative displacement, the difference between the value |
965 | of sym+add and the base address of the thread-local storage block that | |
966 | contains the definition of sym, minus 0x8000. */ | |
967 | HOWTO (R_PPC_DTPREL32, | |
968 | 0, /* rightshift */ | |
969 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
970 | 32, /* bitsize */ | |
971 | FALSE, /* pc_relative */ | |
972 | 0, /* bitpos */ | |
973 | complain_overflow_dont, /* complain_on_overflow */ | |
974 | ppc_elf_unhandled_reloc, /* special_function */ | |
975 | "R_PPC_DTPREL32", /* name */ | |
976 | FALSE, /* partial_inplace */ | |
977 | 0, /* src_mask */ | |
978 | 0xffffffff, /* dst_mask */ | |
979 | FALSE), /* pcrel_offset */ | |
980 | ||
981 | /* A 16 bit dtprel reloc. */ | |
982 | HOWTO (R_PPC_DTPREL16, | |
252b5132 RH |
983 | 0, /* rightshift */ |
984 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
985 | 16, /* bitsize */ | |
b34976b6 | 986 | FALSE, /* pc_relative */ |
252b5132 | 987 | 0, /* bitpos */ |
7619e7c7 AM |
988 | complain_overflow_signed, /* complain_on_overflow */ |
989 | ppc_elf_unhandled_reloc, /* special_function */ | |
990 | "R_PPC_DTPREL16", /* name */ | |
b34976b6 | 991 | FALSE, /* partial_inplace */ |
252b5132 RH |
992 | 0, /* src_mask */ |
993 | 0xffff, /* dst_mask */ | |
b34976b6 | 994 | FALSE), /* pcrel_offset */ |
252b5132 | 995 | |
7619e7c7 AM |
996 | /* Like DTPREL16, but no overflow. */ |
997 | HOWTO (R_PPC_DTPREL16_LO, | |
252b5132 RH |
998 | 0, /* rightshift */ |
999 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1000 | 16, /* bitsize */ | |
b34976b6 | 1001 | FALSE, /* pc_relative */ |
252b5132 | 1002 | 0, /* bitpos */ |
7619e7c7 AM |
1003 | complain_overflow_dont, /* complain_on_overflow */ |
1004 | ppc_elf_unhandled_reloc, /* special_function */ | |
1005 | "R_PPC_DTPREL16_LO", /* name */ | |
b34976b6 | 1006 | FALSE, /* partial_inplace */ |
252b5132 RH |
1007 | 0, /* src_mask */ |
1008 | 0xffff, /* dst_mask */ | |
b34976b6 | 1009 | FALSE), /* pcrel_offset */ |
252b5132 | 1010 | |
7619e7c7 AM |
1011 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ |
1012 | HOWTO (R_PPC_DTPREL16_HI, | |
252b5132 RH |
1013 | 16, /* rightshift */ |
1014 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1015 | 16, /* bitsize */ | |
b34976b6 | 1016 | FALSE, /* pc_relative */ |
252b5132 RH |
1017 | 0, /* bitpos */ |
1018 | complain_overflow_dont, /* complain_on_overflow */ | |
7619e7c7 AM |
1019 | ppc_elf_unhandled_reloc, /* special_function */ |
1020 | "R_PPC_DTPREL16_HI", /* name */ | |
b34976b6 | 1021 | FALSE, /* partial_inplace */ |
252b5132 RH |
1022 | 0, /* src_mask */ |
1023 | 0xffff, /* dst_mask */ | |
b34976b6 | 1024 | FALSE), /* pcrel_offset */ |
252b5132 | 1025 | |
7619e7c7 AM |
1026 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ |
1027 | HOWTO (R_PPC_DTPREL16_HA, | |
252b5132 RH |
1028 | 16, /* rightshift */ |
1029 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1030 | 16, /* bitsize */ | |
b34976b6 | 1031 | FALSE, /* pc_relative */ |
252b5132 RH |
1032 | 0, /* bitpos */ |
1033 | complain_overflow_dont, /* complain_on_overflow */ | |
7619e7c7 AM |
1034 | ppc_elf_unhandled_reloc, /* special_function */ |
1035 | "R_PPC_DTPREL16_HA", /* name */ | |
b34976b6 | 1036 | FALSE, /* partial_inplace */ |
252b5132 RH |
1037 | 0, /* src_mask */ |
1038 | 0xffff, /* dst_mask */ | |
b34976b6 | 1039 | FALSE), /* pcrel_offset */ |
252b5132 | 1040 | |
7619e7c7 AM |
1041 | /* Computes a tp-relative displacement, the difference between the value of |
1042 | sym+add and the value of the thread pointer (r13). */ | |
1043 | HOWTO (R_PPC_TPREL32, | |
1044 | 0, /* rightshift */ | |
1045 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1046 | 32, /* bitsize */ | |
1047 | FALSE, /* pc_relative */ | |
1048 | 0, /* bitpos */ | |
1049 | complain_overflow_dont, /* complain_on_overflow */ | |
1050 | ppc_elf_unhandled_reloc, /* special_function */ | |
1051 | "R_PPC_TPREL32", /* name */ | |
1052 | FALSE, /* partial_inplace */ | |
1053 | 0, /* src_mask */ | |
1054 | 0xffffffff, /* dst_mask */ | |
1055 | FALSE), /* pcrel_offset */ | |
1056 | ||
1057 | /* A 16 bit tprel reloc. */ | |
1058 | HOWTO (R_PPC_TPREL16, | |
252b5132 RH |
1059 | 0, /* rightshift */ |
1060 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1061 | 16, /* bitsize */ | |
b34976b6 | 1062 | FALSE, /* pc_relative */ |
252b5132 | 1063 | 0, /* bitpos */ |
7619e7c7 AM |
1064 | complain_overflow_signed, /* complain_on_overflow */ |
1065 | ppc_elf_unhandled_reloc, /* special_function */ | |
1066 | "R_PPC_TPREL16", /* name */ | |
b34976b6 | 1067 | FALSE, /* partial_inplace */ |
252b5132 RH |
1068 | 0, /* src_mask */ |
1069 | 0xffff, /* dst_mask */ | |
b34976b6 | 1070 | FALSE), /* pcrel_offset */ |
252b5132 | 1071 | |
7619e7c7 AM |
1072 | /* Like TPREL16, but no overflow. */ |
1073 | HOWTO (R_PPC_TPREL16_LO, | |
252b5132 RH |
1074 | 0, /* rightshift */ |
1075 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1076 | 16, /* bitsize */ | |
b34976b6 | 1077 | FALSE, /* pc_relative */ |
252b5132 | 1078 | 0, /* bitpos */ |
7619e7c7 AM |
1079 | complain_overflow_dont, /* complain_on_overflow */ |
1080 | ppc_elf_unhandled_reloc, /* special_function */ | |
1081 | "R_PPC_TPREL16_LO", /* name */ | |
b34976b6 | 1082 | FALSE, /* partial_inplace */ |
252b5132 RH |
1083 | 0, /* src_mask */ |
1084 | 0xffff, /* dst_mask */ | |
b34976b6 | 1085 | FALSE), /* pcrel_offset */ |
252b5132 | 1086 | |
7619e7c7 AM |
1087 | /* Like TPREL16_LO, but next higher group of 16 bits. */ |
1088 | HOWTO (R_PPC_TPREL16_HI, | |
1089 | 16, /* rightshift */ | |
1090 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1091 | 16, /* bitsize */ | |
1092 | FALSE, /* pc_relative */ | |
1093 | 0, /* bitpos */ | |
1094 | complain_overflow_dont, /* complain_on_overflow */ | |
1095 | ppc_elf_unhandled_reloc, /* special_function */ | |
1096 | "R_PPC_TPREL16_HI", /* name */ | |
1097 | FALSE, /* partial_inplace */ | |
1098 | 0, /* src_mask */ | |
1099 | 0xffff, /* dst_mask */ | |
1100 | FALSE), /* pcrel_offset */ | |
1101 | ||
1102 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
1103 | HOWTO (R_PPC_TPREL16_HA, | |
1104 | 16, /* rightshift */ | |
1105 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1106 | 16, /* bitsize */ | |
1107 | FALSE, /* pc_relative */ | |
1108 | 0, /* bitpos */ | |
1109 | complain_overflow_dont, /* complain_on_overflow */ | |
1110 | ppc_elf_unhandled_reloc, /* special_function */ | |
1111 | "R_PPC_TPREL16_HA", /* name */ | |
1112 | FALSE, /* partial_inplace */ | |
1113 | 0, /* src_mask */ | |
1114 | 0xffff, /* dst_mask */ | |
1115 | FALSE), /* pcrel_offset */ | |
1116 | ||
1117 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
1118 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
1119 | to the first entry. */ | |
1120 | HOWTO (R_PPC_GOT_TLSGD16, | |
252b5132 RH |
1121 | 0, /* rightshift */ |
1122 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1123 | 16, /* bitsize */ | |
b34976b6 | 1124 | FALSE, /* pc_relative */ |
252b5132 RH |
1125 | 0, /* bitpos */ |
1126 | complain_overflow_signed, /* complain_on_overflow */ | |
7619e7c7 AM |
1127 | ppc_elf_unhandled_reloc, /* special_function */ |
1128 | "R_PPC_GOT_TLSGD16", /* name */ | |
b34976b6 | 1129 | FALSE, /* partial_inplace */ |
252b5132 RH |
1130 | 0, /* src_mask */ |
1131 | 0xffff, /* dst_mask */ | |
b34976b6 | 1132 | FALSE), /* pcrel_offset */ |
252b5132 | 1133 | |
7619e7c7 AM |
1134 | /* Like GOT_TLSGD16, but no overflow. */ |
1135 | HOWTO (R_PPC_GOT_TLSGD16_LO, | |
252b5132 | 1136 | 0, /* rightshift */ |
7619e7c7 | 1137 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
252b5132 | 1138 | 16, /* bitsize */ |
b34976b6 | 1139 | FALSE, /* pc_relative */ |
252b5132 | 1140 | 0, /* bitpos */ |
7619e7c7 AM |
1141 | complain_overflow_dont, /* complain_on_overflow */ |
1142 | ppc_elf_unhandled_reloc, /* special_function */ | |
1143 | "R_PPC_GOT_TLSGD16_LO", /* name */ | |
b34976b6 | 1144 | FALSE, /* partial_inplace */ |
252b5132 RH |
1145 | 0, /* src_mask */ |
1146 | 0xffff, /* dst_mask */ | |
b34976b6 | 1147 | FALSE), /* pcrel_offset */ |
252b5132 | 1148 | |
7619e7c7 AM |
1149 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
1150 | HOWTO (R_PPC_GOT_TLSGD16_HI, | |
1151 | 16, /* rightshift */ | |
1152 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1153 | 16, /* bitsize */ | |
1154 | FALSE, /* pc_relative */ | |
1155 | 0, /* bitpos */ | |
1156 | complain_overflow_dont, /* complain_on_overflow */ | |
1157 | ppc_elf_unhandled_reloc, /* special_function */ | |
1158 | "R_PPC_GOT_TLSGD16_HI", /* name */ | |
1159 | FALSE, /* partial_inplace */ | |
1160 | 0, /* src_mask */ | |
1161 | 0xffff, /* dst_mask */ | |
1162 | FALSE), /* pcrel_offset */ | |
252b5132 | 1163 | |
7619e7c7 AM |
1164 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
1165 | HOWTO (R_PPC_GOT_TLSGD16_HA, | |
1166 | 16, /* rightshift */ | |
1167 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1168 | 16, /* bitsize */ | |
1169 | FALSE, /* pc_relative */ | |
1170 | 0, /* bitpos */ | |
1171 | complain_overflow_dont, /* complain_on_overflow */ | |
1172 | ppc_elf_unhandled_reloc, /* special_function */ | |
1173 | "R_PPC_GOT_TLSGD16_HA", /* name */ | |
1174 | FALSE, /* partial_inplace */ | |
1175 | 0, /* src_mask */ | |
1176 | 0xffff, /* dst_mask */ | |
1177 | FALSE), /* pcrel_offset */ | |
1178 | ||
1179 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
1180 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
1181 | first entry. */ | |
1182 | HOWTO (R_PPC_GOT_TLSLD16, | |
252b5132 RH |
1183 | 0, /* rightshift */ |
1184 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1185 | 16, /* bitsize */ | |
7619e7c7 | 1186 | FALSE, /* pc_relative */ |
252b5132 RH |
1187 | 0, /* bitpos */ |
1188 | complain_overflow_signed, /* complain_on_overflow */ | |
7619e7c7 AM |
1189 | ppc_elf_unhandled_reloc, /* special_function */ |
1190 | "R_PPC_GOT_TLSLD16", /* name */ | |
b34976b6 | 1191 | FALSE, /* partial_inplace */ |
252b5132 RH |
1192 | 0, /* src_mask */ |
1193 | 0xffff, /* dst_mask */ | |
b34976b6 | 1194 | FALSE), /* pcrel_offset */ |
252b5132 | 1195 | |
7619e7c7 AM |
1196 | /* Like GOT_TLSLD16, but no overflow. */ |
1197 | HOWTO (R_PPC_GOT_TLSLD16_LO, | |
252b5132 | 1198 | 0, /* rightshift */ |
7619e7c7 AM |
1199 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1200 | 16, /* bitsize */ | |
b34976b6 | 1201 | FALSE, /* pc_relative */ |
252b5132 RH |
1202 | 0, /* bitpos */ |
1203 | complain_overflow_dont, /* complain_on_overflow */ | |
7619e7c7 AM |
1204 | ppc_elf_unhandled_reloc, /* special_function */ |
1205 | "R_PPC_GOT_TLSLD16_LO", /* name */ | |
b34976b6 | 1206 | FALSE, /* partial_inplace */ |
252b5132 | 1207 | 0, /* src_mask */ |
7619e7c7 | 1208 | 0xffff, /* dst_mask */ |
b34976b6 | 1209 | FALSE), /* pcrel_offset */ |
252b5132 | 1210 | |
7619e7c7 AM |
1211 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
1212 | HOWTO (R_PPC_GOT_TLSLD16_HI, | |
1213 | 16, /* rightshift */ | |
1214 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1215 | 16, /* bitsize */ | |
b34976b6 | 1216 | FALSE, /* pc_relative */ |
252b5132 RH |
1217 | 0, /* bitpos */ |
1218 | complain_overflow_dont, /* complain_on_overflow */ | |
7619e7c7 AM |
1219 | ppc_elf_unhandled_reloc, /* special_function */ |
1220 | "R_PPC_GOT_TLSLD16_HI", /* name */ | |
b34976b6 | 1221 | FALSE, /* partial_inplace */ |
252b5132 | 1222 | 0, /* src_mask */ |
7619e7c7 | 1223 | 0xffff, /* dst_mask */ |
b34976b6 | 1224 | FALSE), /* pcrel_offset */ |
252b5132 | 1225 | |
7619e7c7 AM |
1226 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
1227 | HOWTO (R_PPC_GOT_TLSLD16_HA, | |
1228 | 16, /* rightshift */ | |
1229 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1230 | 16, /* bitsize */ | |
1231 | FALSE, /* pc_relative */ | |
1232 | 0, /* bitpos */ | |
1233 | complain_overflow_dont, /* complain_on_overflow */ | |
1234 | ppc_elf_unhandled_reloc, /* special_function */ | |
1235 | "R_PPC_GOT_TLSLD16_HA", /* name */ | |
1236 | FALSE, /* partial_inplace */ | |
1237 | 0, /* src_mask */ | |
1238 | 0xffff, /* dst_mask */ | |
1239 | FALSE), /* pcrel_offset */ | |
1240 | ||
1241 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes | |
1242 | the offset to the entry. */ | |
1243 | HOWTO (R_PPC_GOT_DTPREL16, | |
252b5132 RH |
1244 | 0, /* rightshift */ |
1245 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1246 | 16, /* bitsize */ | |
b34976b6 | 1247 | FALSE, /* pc_relative */ |
252b5132 RH |
1248 | 0, /* bitpos */ |
1249 | complain_overflow_signed, /* complain_on_overflow */ | |
7619e7c7 AM |
1250 | ppc_elf_unhandled_reloc, /* special_function */ |
1251 | "R_PPC_GOT_DTPREL16", /* name */ | |
b34976b6 | 1252 | FALSE, /* partial_inplace */ |
252b5132 RH |
1253 | 0, /* src_mask */ |
1254 | 0xffff, /* dst_mask */ | |
b34976b6 | 1255 | FALSE), /* pcrel_offset */ |
252b5132 | 1256 | |
7619e7c7 AM |
1257 | /* Like GOT_DTPREL16, but no overflow. */ |
1258 | HOWTO (R_PPC_GOT_DTPREL16_LO, | |
1259 | 0, /* rightshift */ | |
1260 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1261 | 16, /* bitsize */ | |
1262 | FALSE, /* pc_relative */ | |
1263 | 0, /* bitpos */ | |
1264 | complain_overflow_dont, /* complain_on_overflow */ | |
1265 | ppc_elf_unhandled_reloc, /* special_function */ | |
1266 | "R_PPC_GOT_DTPREL16_LO", /* name */ | |
1267 | FALSE, /* partial_inplace */ | |
1268 | 0, /* src_mask */ | |
1269 | 0xffff, /* dst_mask */ | |
1270 | FALSE), /* pcrel_offset */ | |
252b5132 | 1271 | |
7619e7c7 AM |
1272 | /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */ |
1273 | HOWTO (R_PPC_GOT_DTPREL16_HI, | |
1274 | 16, /* rightshift */ | |
1275 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1276 | 16, /* bitsize */ | |
1277 | FALSE, /* pc_relative */ | |
1278 | 0, /* bitpos */ | |
1279 | complain_overflow_dont, /* complain_on_overflow */ | |
1280 | ppc_elf_unhandled_reloc, /* special_function */ | |
1281 | "R_PPC_GOT_DTPREL16_HI", /* name */ | |
1282 | FALSE, /* partial_inplace */ | |
1283 | 0, /* src_mask */ | |
1284 | 0xffff, /* dst_mask */ | |
1285 | FALSE), /* pcrel_offset */ | |
252b5132 | 1286 | |
7619e7c7 AM |
1287 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
1288 | HOWTO (R_PPC_GOT_DTPREL16_HA, | |
1289 | 16, /* rightshift */ | |
1290 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1291 | 16, /* bitsize */ | |
1292 | FALSE, /* pc_relative */ | |
1293 | 0, /* bitpos */ | |
1294 | complain_overflow_dont, /* complain_on_overflow */ | |
1295 | ppc_elf_unhandled_reloc, /* special_function */ | |
1296 | "R_PPC_GOT_DTPREL16_HA", /* name */ | |
1297 | FALSE, /* partial_inplace */ | |
1298 | 0, /* src_mask */ | |
1299 | 0xffff, /* dst_mask */ | |
1300 | FALSE), /* pcrel_offset */ | |
c3668558 | 1301 | |
7619e7c7 AM |
1302 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the |
1303 | offset to the entry. */ | |
1304 | HOWTO (R_PPC_GOT_TPREL16, | |
1305 | 0, /* rightshift */ | |
1306 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1307 | 16, /* bitsize */ | |
1308 | FALSE, /* pc_relative */ | |
1309 | 0, /* bitpos */ | |
1310 | complain_overflow_signed, /* complain_on_overflow */ | |
1311 | ppc_elf_unhandled_reloc, /* special_function */ | |
1312 | "R_PPC_GOT_TPREL16", /* name */ | |
1313 | FALSE, /* partial_inplace */ | |
1314 | 0, /* src_mask */ | |
1315 | 0xffff, /* dst_mask */ | |
1316 | FALSE), /* pcrel_offset */ | |
1317 | ||
1318 | /* Like GOT_TPREL16, but no overflow. */ | |
1319 | HOWTO (R_PPC_GOT_TPREL16_LO, | |
1320 | 0, /* rightshift */ | |
1321 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1322 | 16, /* bitsize */ | |
1323 | FALSE, /* pc_relative */ | |
1324 | 0, /* bitpos */ | |
1325 | complain_overflow_dont, /* complain_on_overflow */ | |
1326 | ppc_elf_unhandled_reloc, /* special_function */ | |
1327 | "R_PPC_GOT_TPREL16_LO", /* name */ | |
1328 | FALSE, /* partial_inplace */ | |
1329 | 0, /* src_mask */ | |
1330 | 0xffff, /* dst_mask */ | |
1331 | FALSE), /* pcrel_offset */ | |
1332 | ||
1333 | /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */ | |
1334 | HOWTO (R_PPC_GOT_TPREL16_HI, | |
1335 | 16, /* rightshift */ | |
1336 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1337 | 16, /* bitsize */ | |
1338 | FALSE, /* pc_relative */ | |
1339 | 0, /* bitpos */ | |
1340 | complain_overflow_dont, /* complain_on_overflow */ | |
1341 | ppc_elf_unhandled_reloc, /* special_function */ | |
1342 | "R_PPC_GOT_TPREL16_HI", /* name */ | |
1343 | FALSE, /* partial_inplace */ | |
1344 | 0, /* src_mask */ | |
1345 | 0xffff, /* dst_mask */ | |
1346 | FALSE), /* pcrel_offset */ | |
1347 | ||
1348 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ | |
1349 | HOWTO (R_PPC_GOT_TPREL16_HA, | |
1350 | 16, /* rightshift */ | |
1351 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1352 | 16, /* bitsize */ | |
1353 | FALSE, /* pc_relative */ | |
1354 | 0, /* bitpos */ | |
1355 | complain_overflow_dont, /* complain_on_overflow */ | |
1356 | ppc_elf_unhandled_reloc, /* special_function */ | |
1357 | "R_PPC_GOT_TPREL16_HA", /* name */ | |
1358 | FALSE, /* partial_inplace */ | |
1359 | 0, /* src_mask */ | |
1360 | 0xffff, /* dst_mask */ | |
1361 | FALSE), /* pcrel_offset */ | |
1362 | ||
1363 | /* The remaining relocs are from the Embedded ELF ABI, and are not | |
1364 | in the SVR4 ELF ABI. */ | |
1365 | ||
1366 | /* 32 bit value resulting from the addend minus the symbol. */ | |
1367 | HOWTO (R_PPC_EMB_NADDR32, /* type */ | |
1368 | 0, /* rightshift */ | |
1369 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1370 | 32, /* bitsize */ | |
1371 | FALSE, /* pc_relative */ | |
1372 | 0, /* bitpos */ | |
1373 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1374 | bfd_elf_generic_reloc, /* special_function */ | |
1375 | "R_PPC_EMB_NADDR32", /* name */ | |
1376 | FALSE, /* partial_inplace */ | |
1377 | 0, /* src_mask */ | |
1378 | 0xffffffff, /* dst_mask */ | |
1379 | FALSE), /* pcrel_offset */ | |
1380 | ||
1381 | /* 16 bit value resulting from the addend minus the symbol. */ | |
1382 | HOWTO (R_PPC_EMB_NADDR16, /* type */ | |
1383 | 0, /* rightshift */ | |
1384 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1385 | 16, /* bitsize */ | |
1386 | FALSE, /* pc_relative */ | |
1387 | 0, /* bitpos */ | |
1388 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1389 | bfd_elf_generic_reloc, /* special_function */ | |
1390 | "R_PPC_EMB_NADDR16", /* name */ | |
1391 | FALSE, /* partial_inplace */ | |
1392 | 0, /* src_mask */ | |
1393 | 0xffff, /* dst_mask */ | |
1394 | FALSE), /* pcrel_offset */ | |
1395 | ||
1396 | /* 16 bit value resulting from the addend minus the symbol. */ | |
1397 | HOWTO (R_PPC_EMB_NADDR16_LO, /* type */ | |
1398 | 0, /* rightshift */ | |
1399 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1400 | 16, /* bitsize */ | |
1401 | FALSE, /* pc_relative */ | |
1402 | 0, /* bitpos */ | |
1403 | complain_overflow_dont,/* complain_on_overflow */ | |
1404 | bfd_elf_generic_reloc, /* special_function */ | |
1405 | "R_PPC_EMB_ADDR16_LO", /* name */ | |
1406 | FALSE, /* partial_inplace */ | |
1407 | 0, /* src_mask */ | |
1408 | 0xffff, /* dst_mask */ | |
1409 | FALSE), /* pcrel_offset */ | |
1410 | ||
1411 | /* The high order 16 bits of the addend minus the symbol. */ | |
1412 | HOWTO (R_PPC_EMB_NADDR16_HI, /* type */ | |
1413 | 16, /* rightshift */ | |
1414 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1415 | 16, /* bitsize */ | |
1416 | FALSE, /* pc_relative */ | |
1417 | 0, /* bitpos */ | |
1418 | complain_overflow_dont, /* complain_on_overflow */ | |
1419 | bfd_elf_generic_reloc, /* special_function */ | |
1420 | "R_PPC_EMB_NADDR16_HI", /* name */ | |
1421 | FALSE, /* partial_inplace */ | |
1422 | 0, /* src_mask */ | |
1423 | 0xffff, /* dst_mask */ | |
1424 | FALSE), /* pcrel_offset */ | |
1425 | ||
1426 | /* The high order 16 bits of the result of the addend minus the address, | |
1427 | plus 1 if the contents of the low 16 bits, treated as a signed number, | |
1428 | is negative. */ | |
1429 | HOWTO (R_PPC_EMB_NADDR16_HA, /* type */ | |
1430 | 16, /* rightshift */ | |
1431 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1432 | 16, /* bitsize */ | |
1433 | FALSE, /* pc_relative */ | |
1434 | 0, /* bitpos */ | |
1435 | complain_overflow_dont, /* complain_on_overflow */ | |
1436 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
1437 | "R_PPC_EMB_NADDR16_HA", /* name */ | |
1438 | FALSE, /* partial_inplace */ | |
1439 | 0, /* src_mask */ | |
1440 | 0xffff, /* dst_mask */ | |
1441 | FALSE), /* pcrel_offset */ | |
1442 | ||
1443 | /* 16 bit value resulting from allocating a 4 byte word to hold an | |
1444 | address in the .sdata section, and returning the offset from | |
1445 | _SDA_BASE_ for that relocation. */ | |
1446 | HOWTO (R_PPC_EMB_SDAI16, /* type */ | |
1447 | 0, /* rightshift */ | |
1448 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1449 | 16, /* bitsize */ | |
1450 | FALSE, /* pc_relative */ | |
1451 | 0, /* bitpos */ | |
1452 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1453 | bfd_elf_generic_reloc, /* special_function */ | |
1454 | "R_PPC_EMB_SDAI16", /* name */ | |
1455 | FALSE, /* partial_inplace */ | |
1456 | 0, /* src_mask */ | |
1457 | 0xffff, /* dst_mask */ | |
1458 | FALSE), /* pcrel_offset */ | |
1459 | ||
1460 | /* 16 bit value resulting from allocating a 4 byte word to hold an | |
1461 | address in the .sdata2 section, and returning the offset from | |
1462 | _SDA2_BASE_ for that relocation. */ | |
1463 | HOWTO (R_PPC_EMB_SDA2I16, /* type */ | |
1464 | 0, /* rightshift */ | |
1465 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1466 | 16, /* bitsize */ | |
1467 | FALSE, /* pc_relative */ | |
1468 | 0, /* bitpos */ | |
1469 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1470 | bfd_elf_generic_reloc, /* special_function */ | |
1471 | "R_PPC_EMB_SDA2I16", /* name */ | |
1472 | FALSE, /* partial_inplace */ | |
1473 | 0, /* src_mask */ | |
1474 | 0xffff, /* dst_mask */ | |
1475 | FALSE), /* pcrel_offset */ | |
1476 | ||
1477 | /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with | |
1478 | small data items. */ | |
1479 | HOWTO (R_PPC_EMB_SDA2REL, /* type */ | |
1480 | 0, /* rightshift */ | |
1481 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1482 | 16, /* bitsize */ | |
1483 | FALSE, /* pc_relative */ | |
1484 | 0, /* bitpos */ | |
1485 | complain_overflow_signed, /* complain_on_overflow */ | |
1486 | bfd_elf_generic_reloc, /* special_function */ | |
1487 | "R_PPC_EMB_SDA2REL", /* name */ | |
1488 | FALSE, /* partial_inplace */ | |
1489 | 0, /* src_mask */ | |
1490 | 0xffff, /* dst_mask */ | |
1491 | FALSE), /* pcrel_offset */ | |
1492 | ||
1493 | /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit | |
1494 | signed offset from the appropriate base, and filling in the register | |
1495 | field with the appropriate register (0, 2, or 13). */ | |
1496 | HOWTO (R_PPC_EMB_SDA21, /* type */ | |
1497 | 0, /* rightshift */ | |
1498 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1499 | 16, /* bitsize */ | |
1500 | FALSE, /* pc_relative */ | |
1501 | 0, /* bitpos */ | |
1502 | complain_overflow_signed, /* complain_on_overflow */ | |
1503 | bfd_elf_generic_reloc, /* special_function */ | |
1504 | "R_PPC_EMB_SDA21", /* name */ | |
1505 | FALSE, /* partial_inplace */ | |
1506 | 0, /* src_mask */ | |
1507 | 0xffff, /* dst_mask */ | |
1508 | FALSE), /* pcrel_offset */ | |
1509 | ||
1510 | /* Relocation not handled: R_PPC_EMB_MRKREF */ | |
1511 | /* Relocation not handled: R_PPC_EMB_RELSEC16 */ | |
1512 | /* Relocation not handled: R_PPC_EMB_RELST_LO */ | |
1513 | /* Relocation not handled: R_PPC_EMB_RELST_HI */ | |
1514 | /* Relocation not handled: R_PPC_EMB_RELST_HA */ | |
1515 | /* Relocation not handled: R_PPC_EMB_BIT_FLD */ | |
1516 | ||
1517 | /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling | |
1518 | in the 16 bit signed offset from the appropriate base, and filling in the | |
1519 | register field with the appropriate register (0, 2, or 13). */ | |
1520 | HOWTO (R_PPC_EMB_RELSDA, /* type */ | |
1521 | 0, /* rightshift */ | |
1522 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1523 | 16, /* bitsize */ | |
1524 | TRUE, /* pc_relative */ | |
1525 | 0, /* bitpos */ | |
1526 | complain_overflow_signed, /* complain_on_overflow */ | |
1527 | bfd_elf_generic_reloc, /* special_function */ | |
1528 | "R_PPC_EMB_RELSDA", /* name */ | |
1529 | FALSE, /* partial_inplace */ | |
1530 | 0, /* src_mask */ | |
1531 | 0xffff, /* dst_mask */ | |
1532 | FALSE), /* pcrel_offset */ | |
1533 | ||
f31a141e | 1534 | /* Phony relocs to handle branch stubs. */ |
deaaf2f3 EC |
1535 | HOWTO (R_PPC_RELAX32, /* type */ |
1536 | 0, /* rightshift */ | |
1537 | 0, /* size */ | |
1538 | 0, /* bitsize */ | |
1539 | FALSE, /* pc_relative */ | |
1540 | 0, /* bitpos */ | |
1541 | complain_overflow_dont, /* complain_on_overflow */ | |
1542 | bfd_elf_generic_reloc, /* special_function */ | |
1543 | "R_PPC_RELAX32", /* name */ | |
1544 | FALSE, /* partial_inplace */ | |
1545 | 0, /* src_mask */ | |
1546 | 0, /* dst_mask */ | |
1547 | FALSE), /* pcrel_offset */ | |
1548 | ||
f31a141e AM |
1549 | HOWTO (R_PPC_RELAX32PC, /* type */ |
1550 | 0, /* rightshift */ | |
1551 | 0, /* size */ | |
1552 | 0, /* bitsize */ | |
1553 | FALSE, /* pc_relative */ | |
1554 | 0, /* bitpos */ | |
1555 | complain_overflow_dont, /* complain_on_overflow */ | |
1556 | bfd_elf_generic_reloc, /* special_function */ | |
1557 | "R_PPC_RELAX32PC", /* name */ | |
1558 | FALSE, /* partial_inplace */ | |
1559 | 0, /* src_mask */ | |
1560 | 0, /* dst_mask */ | |
1561 | FALSE), /* pcrel_offset */ | |
1562 | ||
7619e7c7 AM |
1563 | /* GNU extension to record C++ vtable hierarchy. */ |
1564 | HOWTO (R_PPC_GNU_VTINHERIT, /* type */ | |
1565 | 0, /* rightshift */ | |
1566 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1567 | 0, /* bitsize */ | |
1568 | FALSE, /* pc_relative */ | |
1569 | 0, /* bitpos */ | |
1570 | complain_overflow_dont, /* complain_on_overflow */ | |
1571 | NULL, /* special_function */ | |
1572 | "R_PPC_GNU_VTINHERIT", /* name */ | |
1573 | FALSE, /* partial_inplace */ | |
1574 | 0, /* src_mask */ | |
1575 | 0, /* dst_mask */ | |
1576 | FALSE), /* pcrel_offset */ | |
1577 | ||
1578 | /* GNU extension to record C++ vtable member usage. */ | |
1579 | HOWTO (R_PPC_GNU_VTENTRY, /* type */ | |
1580 | 0, /* rightshift */ | |
1581 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1582 | 0, /* bitsize */ | |
1583 | FALSE, /* pc_relative */ | |
1584 | 0, /* bitpos */ | |
1585 | complain_overflow_dont, /* complain_on_overflow */ | |
1586 | NULL, /* special_function */ | |
1587 | "R_PPC_GNU_VTENTRY", /* name */ | |
1588 | FALSE, /* partial_inplace */ | |
1589 | 0, /* src_mask */ | |
1590 | 0, /* dst_mask */ | |
1591 | FALSE), /* pcrel_offset */ | |
1592 | ||
1593 | /* Phony reloc to handle AIX style TOC entries. */ | |
1594 | HOWTO (R_PPC_TOC16, /* type */ | |
1595 | 0, /* rightshift */ | |
1596 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1597 | 16, /* bitsize */ | |
1598 | FALSE, /* pc_relative */ | |
1599 | 0, /* bitpos */ | |
1600 | complain_overflow_signed, /* complain_on_overflow */ | |
1601 | bfd_elf_generic_reloc, /* special_function */ | |
1602 | "R_PPC_TOC16", /* name */ | |
1603 | FALSE, /* partial_inplace */ | |
1604 | 0, /* src_mask */ | |
1605 | 0xffff, /* dst_mask */ | |
1606 | FALSE), /* pcrel_offset */ | |
1607 | }; | |
1608 | \f | |
1609 | /* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */ | |
1610 | ||
1611 | static void | |
55fd94b0 | 1612 | ppc_elf_howto_init (void) |
7619e7c7 AM |
1613 | { |
1614 | unsigned int i, type; | |
1615 | ||
fc0bffd6 AM |
1616 | for (i = 0; |
1617 | i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]); | |
1618 | i++) | |
7619e7c7 AM |
1619 | { |
1620 | type = ppc_elf_howto_raw[i].type; | |
fc0bffd6 AM |
1621 | if (type >= (sizeof (ppc_elf_howto_table) |
1622 | / sizeof (ppc_elf_howto_table[0]))) | |
1623 | abort (); | |
7619e7c7 AM |
1624 | ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i]; |
1625 | } | |
1626 | } | |
1627 | \f | |
deaaf2f3 | 1628 | static bfd_reloc_status_type |
e656e369 AM |
1629 | ppc_elf_install_value (bfd *abfd, |
1630 | bfd_byte *hit_addr, | |
1631 | bfd_vma v, | |
1632 | unsigned int r_type) | |
252b5132 | 1633 | { |
deaaf2f3 EC |
1634 | bfd_vma t0, t1; |
1635 | #ifdef BFD_HOST_U_64_BIT | |
1636 | BFD_HOST_U_64_BIT val = (BFD_HOST_U_64_BIT) v; | |
1637 | #else | |
1638 | bfd_vma val = v; | |
1639 | #endif | |
1640 | ||
1641 | switch (r_type) | |
1642 | { | |
1643 | case R_PPC_RELAX32: | |
f31a141e | 1644 | case R_PPC_RELAX32PC: |
deaaf2f3 EC |
1645 | t0 = bfd_get_32 (abfd, hit_addr); |
1646 | t1 = bfd_get_32 (abfd, hit_addr + 4); | |
1647 | ||
1648 | /* We're clearing the bits for R_PPC_ADDR16_HA | |
1649 | and R_PPC_ADDR16_LO here. */ | |
e656e369 AM |
1650 | t0 &= ~0xffff; |
1651 | t1 &= ~0xffff; | |
deaaf2f3 EC |
1652 | |
1653 | /* t0 is HA, t1 is lo */ | |
1654 | t0 |= ((val + 0x8000) >> 16) & 0xffff; | |
e656e369 | 1655 | t1 |= val & 0xffff; |
deaaf2f3 EC |
1656 | |
1657 | bfd_put_32 (abfd, t0, hit_addr); | |
1658 | bfd_put_32 (abfd, t1, hit_addr + 4); | |
1659 | break; | |
1660 | ||
1661 | case R_PPC_REL24: | |
f31a141e AM |
1662 | case R_PPC_LOCAL24PC: |
1663 | case R_PPC_PLTREL24: | |
deaaf2f3 | 1664 | t0 = bfd_get_32 (abfd, hit_addr); |
e656e369 AM |
1665 | t0 &= ~0x3fffffc; |
1666 | t0 |= val & 0x3fffffc; | |
deaaf2f3 EC |
1667 | bfd_put_32 (abfd, t0, hit_addr); |
1668 | break; | |
1669 | ||
1670 | case R_PPC_REL14: | |
1671 | case R_PPC_REL14_BRTAKEN: | |
1672 | case R_PPC_REL14_BRNTAKEN: | |
1673 | t0 = bfd_get_32 (abfd, hit_addr); | |
e656e369 AM |
1674 | t0 &= ~0xfffc; |
1675 | t0 |= val & 0xfffc; | |
deaaf2f3 EC |
1676 | bfd_put_32 (abfd, t0, hit_addr); |
1677 | break; | |
252b5132 | 1678 | |
deaaf2f3 EC |
1679 | default: |
1680 | return bfd_reloc_notsupported; | |
1681 | } | |
1682 | ||
1683 | return bfd_reloc_ok; | |
252b5132 RH |
1684 | } |
1685 | ||
deaaf2f3 EC |
1686 | static const bfd_byte shared_stub_entry[] = |
1687 | { | |
1688 | 0x48, 0x00, 0x00, 0x24, /* b .+36 */ | |
1689 | 0x7c, 0x08, 0x02, 0xa6, /* mflr 0 */ | |
1690 | 0x42, 0x9f, 0x00, 0x05, /* bcl 20, 31, .Lxxx */ | |
1691 | 0x7d, 0x68, 0x02, 0xa6, /* mflr 11 */ | |
f31a141e | 1692 | 0x3d, 0x6b, 0x00, 0x00, /* addis 11, 11, (xxx-.Lxxx)@ha */ |
deaaf2f3 EC |
1693 | 0x39, 0x6b, 0x00, 0x18, /* addi 11, 11, (xxx-.Lxxx)@l */ |
1694 | 0x7c, 0x08, 0x03, 0xa6, /* mtlr 0 */ | |
1695 | 0x7d, 0x69, 0x03, 0xa6, /* mtctr 11 */ | |
1696 | 0x4e, 0x80, 0x04, 0x20, /* bctr */ | |
1697 | }; | |
1698 | ||
1699 | static const bfd_byte stub_entry[] = | |
1700 | { | |
1701 | 0x48, 0x00, 0x00, 0x14, /* b .+20 */ | |
1702 | 0x3d, 0x60, 0x00, 0x00, /* lis 11,xxx@ha */ | |
1703 | 0x39, 0x6b, 0x00, 0x00, /* addi 11,11,xxx@l */ | |
1704 | 0x7d, 0x69, 0x03, 0xa6, /* mtctr 11 */ | |
1705 | 0x4e, 0x80, 0x04, 0x20, /* bctr */ | |
1706 | }; | |
1707 | ||
1708 | ||
b34976b6 | 1709 | static bfd_boolean |
55fd94b0 AM |
1710 | ppc_elf_relax_section (bfd *abfd, |
1711 | asection *isec, | |
1712 | struct bfd_link_info *link_info, | |
1713 | bfd_boolean *again) | |
252b5132 | 1714 | { |
deaaf2f3 EC |
1715 | struct one_fixup |
1716 | { | |
1717 | struct one_fixup *next; | |
1718 | asection *tsec; | |
1719 | bfd_vma toff; | |
1720 | bfd_vma trampoff; | |
1721 | }; | |
252b5132 | 1722 | |
deaaf2f3 | 1723 | Elf_Internal_Shdr *symtab_hdr; |
252b5132 | 1724 | bfd_byte *contents = NULL; |
deaaf2f3 | 1725 | Elf_Internal_Sym *isymbuf = NULL; |
252b5132 | 1726 | Elf_Internal_Rela *internal_relocs = NULL; |
deaaf2f3 | 1727 | Elf_Internal_Rela *irel, *irelend; |
deaaf2f3 EC |
1728 | struct one_fixup *fixups = NULL; |
1729 | bfd_boolean changed_contents = FALSE; | |
1730 | bfd_boolean changed_relocs = FALSE; | |
1731 | struct ppc_elf_link_hash_table *ppc_info; | |
252b5132 | 1732 | |
b34976b6 | 1733 | *again = FALSE; |
252b5132 | 1734 | |
e656e369 | 1735 | /* Nothing to do if there are no relocations and no need for |
deaaf2f3 EC |
1736 | the relax finalize pass. */ |
1737 | if ((isec->flags & SEC_RELOC) == 0 | |
1738 | || isec->reloc_count == 0 | |
e656e369 | 1739 | || link_info->relax_finalizing) |
deaaf2f3 EC |
1740 | return TRUE; |
1741 | ||
252b5132 RH |
1742 | /* If needed, initialize this section's cooked size. */ |
1743 | if (isec->_cooked_size == 0) | |
70bccea4 | 1744 | isec->_cooked_size = isec->_raw_size; |
252b5132 | 1745 | |
deaaf2f3 EC |
1746 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1747 | ||
1748 | /* Get a copy of the native relocations. */ | |
e656e369 AM |
1749 | internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL, |
1750 | link_info->keep_memory); | |
deaaf2f3 EC |
1751 | if (internal_relocs == NULL) |
1752 | goto error_return; | |
deaaf2f3 EC |
1753 | |
1754 | ppc_info = ppc_elf_hash_table (link_info); | |
1755 | irelend = internal_relocs + isec->reloc_count; | |
252b5132 | 1756 | |
e656e369 AM |
1757 | /* Get the section contents. */ |
1758 | /* Get cached copy if it exists. */ | |
1759 | if (elf_section_data (isec)->this_hdr.contents != NULL) | |
1760 | contents = elf_section_data (isec)->this_hdr.contents; | |
1761 | else | |
1762 | { | |
1763 | /* Go get them off disk. */ | |
1764 | contents = bfd_malloc (isec->_raw_size); | |
1765 | if (contents == NULL) | |
1766 | goto error_return; | |
252b5132 | 1767 | |
e656e369 AM |
1768 | if (!bfd_get_section_contents (abfd, isec, contents, 0, isec->_raw_size)) |
1769 | goto error_return; | |
1770 | } | |
252b5132 | 1771 | |
deaaf2f3 EC |
1772 | for (irel = internal_relocs; irel < irelend; irel++) |
1773 | { | |
1774 | unsigned long r_type = ELF32_R_TYPE (irel->r_info); | |
deaaf2f3 EC |
1775 | bfd_vma symaddr, reladdr, trampoff, toff, roff; |
1776 | asection *tsec; | |
1777 | bfd_size_type amt; | |
1778 | struct one_fixup *f; | |
1779 | size_t insn_offset = 0; | |
e656e369 | 1780 | bfd_vma max_branch_offset; |
deaaf2f3 EC |
1781 | |
1782 | switch (r_type) | |
8da6118f | 1783 | { |
deaaf2f3 EC |
1784 | case R_PPC_REL24: |
1785 | case R_PPC_LOCAL24PC: | |
1786 | case R_PPC_REL14: | |
1787 | case R_PPC_REL14_BRTAKEN: | |
1788 | case R_PPC_REL14_BRNTAKEN: | |
1789 | case R_PPC_PLTREL24: | |
deaaf2f3 | 1790 | break; |
70bccea4 | 1791 | |
deaaf2f3 EC |
1792 | default: |
1793 | continue; | |
1794 | } | |
70bccea4 | 1795 | |
deaaf2f3 EC |
1796 | /* Get the value of the symbol referred to by the reloc. */ |
1797 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
1798 | { | |
1799 | /* A local symbol. */ | |
1800 | Elf_Internal_Sym *isym; | |
1801 | ||
1802 | /* Read this BFD's local symbols. */ | |
1803 | if (isymbuf == NULL) | |
1804 | { | |
1805 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
1806 | if (isymbuf == NULL) | |
1807 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
1808 | symtab_hdr->sh_info, 0, | |
1809 | NULL, NULL, NULL); | |
1810 | if (isymbuf == 0) | |
1811 | goto error_return; | |
70bccea4 | 1812 | } |
deaaf2f3 EC |
1813 | isym = isymbuf + ELF32_R_SYM (irel->r_info); |
1814 | if (isym->st_shndx == SHN_UNDEF) | |
1815 | continue; /* We can't do anthing with undefined symbols. */ | |
1816 | else if (isym->st_shndx == SHN_ABS) | |
1817 | tsec = bfd_abs_section_ptr; | |
1818 | else if (isym->st_shndx == SHN_COMMON) | |
1819 | tsec = bfd_com_section_ptr; | |
e656e369 | 1820 | else |
deaaf2f3 EC |
1821 | tsec = bfd_section_from_elf_index (abfd, isym->st_shndx); |
1822 | ||
1823 | toff = isym->st_value; | |
8da6118f | 1824 | } |
deaaf2f3 | 1825 | else |
70bccea4 | 1826 | { |
deaaf2f3 EC |
1827 | /* Need dynamic symbol handling. */ |
1828 | unsigned long indx; | |
1829 | struct elf_link_hash_entry *h; | |
1830 | ||
1831 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
1832 | h = elf_sym_hashes (abfd)[indx]; | |
1833 | ||
1834 | while (h->root.type == bfd_link_hash_indirect | |
1835 | || h->root.type == bfd_link_hash_warning) | |
1836 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1837 | ||
1838 | if (r_type == R_PPC_PLTREL24) | |
70bccea4 | 1839 | { |
deaaf2f3 EC |
1840 | Elf_Internal_Sym *isym; |
1841 | ||
1842 | if (h->plt.offset == (bfd_vma) -1 | |
e656e369 | 1843 | || ppc_info->plt == NULL) |
70bccea4 | 1844 | { |
70bccea4 | 1845 | |
deaaf2f3 EC |
1846 | /* Read this BFD's local symbols. */ |
1847 | if (isymbuf == NULL) | |
70bccea4 | 1848 | { |
deaaf2f3 EC |
1849 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
1850 | if (isymbuf == NULL) | |
1851 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
1852 | symtab_hdr->sh_info, 0, | |
1853 | NULL, NULL, NULL); | |
1854 | if (isymbuf == 0) | |
1855 | goto error_return; | |
70bccea4 | 1856 | } |
deaaf2f3 EC |
1857 | isym = isymbuf + ELF32_R_SYM (irel->r_info); |
1858 | ||
1859 | if (isym->st_shndx == SHN_UNDEF) | |
e656e369 AM |
1860 | /* We can't do anthing with undefined symbols. */ |
1861 | continue; | |
deaaf2f3 EC |
1862 | else if (isym->st_shndx == SHN_ABS) |
1863 | tsec = bfd_abs_section_ptr; | |
1864 | else if (isym->st_shndx == SHN_COMMON) | |
1865 | tsec = bfd_com_section_ptr; | |
1866 | else | |
1867 | tsec = h->root.u.def.section; | |
1868 | ||
1869 | toff = h->root.u.def.value; | |
70bccea4 | 1870 | } |
deaaf2f3 | 1871 | else |
70bccea4 | 1872 | { |
deaaf2f3 EC |
1873 | tsec = ppc_info->plt; |
1874 | toff = h->plt.offset; | |
70bccea4 | 1875 | } |
deaaf2f3 EC |
1876 | } |
1877 | else if (h->root.type == bfd_link_hash_undefined | |
1878 | || h->root.type == bfd_link_hash_undefweak) | |
1879 | continue; | |
1880 | ||
1881 | else | |
1882 | { | |
1883 | tsec = h->root.u.def.section; | |
1884 | toff = h->root.u.def.value; | |
1885 | } | |
1886 | } | |
1887 | ||
1888 | if (tsec->sec_info_type == ELF_INFO_TYPE_MERGE) | |
1889 | toff = _bfd_merged_section_offset (abfd, &tsec, | |
1890 | elf_section_data (tsec)->sec_info, | |
e656e369 | 1891 | toff + irel->r_addend, 0); |
deaaf2f3 EC |
1892 | else |
1893 | toff += irel->r_addend; | |
1894 | ||
1895 | symaddr = tsec->output_section->vma + tsec->output_offset + toff; | |
1896 | ||
1897 | roff = irel->r_offset; | |
1898 | ||
e656e369 AM |
1899 | reladdr = (isec->output_section->vma |
1900 | + isec->output_offset | |
1901 | + roff) & (bfd_vma) -4; | |
1902 | ||
1903 | /* If the branch is in range, no need to do anything. */ | |
1904 | max_branch_offset = 1 << 25; | |
1905 | if (r_type != R_PPC_REL24 | |
1906 | && r_type != R_PPC_LOCAL24PC | |
1907 | && r_type != R_PPC_PLTREL24) | |
1908 | max_branch_offset = 1 << 15; | |
1909 | ||
1910 | if ((bfd_vma) (symaddr - reladdr) + max_branch_offset | |
1911 | <= 2 * max_branch_offset) | |
1912 | continue; | |
1913 | ||
1914 | /* If the branch and target are in the same section, you have | |
1915 | no hope. We'll error out later. */ | |
1916 | if (tsec == isec) | |
1917 | continue; | |
1918 | ||
f31a141e AM |
1919 | /* Look for an existing fixup to this address. |
1920 | ??? What if the existing fixup is for a non-pic stub, and the | |
1921 | new one requires a pic stub? This presumably could happen with | |
1922 | a static link and a mix of R_PPC_LOCAL24PC and R_PPC_REL24 | |
1923 | relocs to a symbol needing long branch stubs. | |
1924 | ??? Why do we require R_PPC_LOCAL24PC and branches to the plt | |
1925 | to have a shared branch stub? Shared branch stubs should only | |
1926 | be needed when info->shared. */ | |
e656e369 AM |
1927 | for (f = fixups; f ; f = f->next) |
1928 | if (f->tsec == tsec && f->toff == toff) | |
1929 | break; | |
deaaf2f3 | 1930 | |
e656e369 AM |
1931 | if (f == NULL) |
1932 | { | |
f31a141e | 1933 | const bfd_byte *stub; |
e656e369 | 1934 | size_t size; |
f31a141e | 1935 | unsigned long stub_rtype; |
deaaf2f3 | 1936 | |
e656e369 AM |
1937 | if (link_info->shared |
1938 | || tsec == ppc_info->plt | |
1939 | || r_type == R_PPC_LOCAL24PC) | |
deaaf2f3 | 1940 | { |
f31a141e | 1941 | stub = shared_stub_entry; |
e656e369 AM |
1942 | size = sizeof (shared_stub_entry); |
1943 | insn_offset = 16; | |
f31a141e | 1944 | stub_rtype = R_PPC_RELAX32PC; |
70bccea4 | 1945 | } |
deaaf2f3 EC |
1946 | else |
1947 | { | |
f31a141e | 1948 | stub = stub_entry; |
e656e369 AM |
1949 | size = sizeof (stub_entry); |
1950 | insn_offset = 4; | |
f31a141e | 1951 | stub_rtype = R_PPC_RELAX32; |
deaaf2f3 EC |
1952 | } |
1953 | ||
e656e369 AM |
1954 | /* Resize the current section to make room for the new branch. */ |
1955 | trampoff = (isec->_cooked_size + 3) & (bfd_vma) - 4; | |
1956 | amt = trampoff + size; | |
1957 | contents = bfd_realloc (contents, amt); | |
1958 | if (contents == NULL) | |
deaaf2f3 EC |
1959 | abort (); |
1960 | ||
e656e369 AM |
1961 | isec->_cooked_size = amt; |
1962 | ||
f31a141e | 1963 | memcpy (contents + trampoff, stub, size); |
e656e369 AM |
1964 | |
1965 | /* Hijack the old relocation. Since we need two | |
1966 | relocations for this use a "composite" reloc. */ | |
1967 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
f31a141e | 1968 | stub_rtype); |
e656e369 AM |
1969 | irel->r_offset = trampoff + insn_offset; |
1970 | ||
1971 | /* Record the fixup so we don't do it again this section. */ | |
1972 | f = bfd_malloc (sizeof (*f)); | |
1973 | f->next = fixups; | |
1974 | f->tsec = tsec; | |
1975 | f->toff = toff; | |
1976 | f->trampoff = trampoff; | |
1977 | fixups = f; | |
1978 | } | |
1979 | else | |
1980 | { | |
1981 | /* Nop out the reloc, since we're finalizing things here. */ | |
1982 | irel->r_info = ELF32_R_INFO (0, R_PPC_NONE); | |
252b5132 | 1983 | } |
e656e369 AM |
1984 | |
1985 | /* Fix up the existing branch to hit the trampoline. Hope like | |
1986 | hell this doesn't overflow too. */ | |
1987 | if (ppc_elf_install_value (abfd, contents + roff, | |
1988 | f->trampoff - (roff & (bfd_vma) -3) + 4, | |
1989 | r_type) != bfd_reloc_ok) | |
1990 | abort (); | |
1991 | ||
1992 | changed_contents = TRUE; | |
1993 | changed_relocs = TRUE; | |
252b5132 RH |
1994 | } |
1995 | ||
deaaf2f3 EC |
1996 | /* Clean up. */ |
1997 | while (fixups) | |
252b5132 | 1998 | { |
deaaf2f3 EC |
1999 | struct one_fixup *f = fixups; |
2000 | fixups = fixups->next; | |
2001 | free (f); | |
252b5132 | 2002 | } |
deaaf2f3 EC |
2003 | if (isymbuf != NULL |
2004 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
252b5132 | 2005 | { |
deaaf2f3 EC |
2006 | if (! link_info->keep_memory) |
2007 | free (isymbuf); | |
2008 | else | |
2009 | { | |
2010 | /* Cache the symbols for elf_link_input_bfd. */ | |
2011 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
2012 | } | |
252b5132 RH |
2013 | } |
2014 | ||
deaaf2f3 EC |
2015 | if (contents != NULL |
2016 | && elf_section_data (isec)->this_hdr.contents != contents) | |
252b5132 | 2017 | { |
deaaf2f3 EC |
2018 | if (!changed_contents && !link_info->keep_memory) |
2019 | free (contents); | |
252b5132 RH |
2020 | else |
2021 | { | |
2022 | /* Cache the section contents for elf_link_input_bfd. */ | |
2023 | elf_section_data (isec)->this_hdr.contents = contents; | |
2024 | } | |
252b5132 RH |
2025 | } |
2026 | ||
deaaf2f3 EC |
2027 | if (elf_section_data (isec)->relocs != internal_relocs) |
2028 | { | |
2029 | if (!changed_relocs) | |
2030 | free (internal_relocs); | |
2031 | else | |
2032 | elf_section_data (isec)->relocs = internal_relocs; | |
2033 | } | |
2034 | ||
deaaf2f3 | 2035 | *again = changed_contents || changed_relocs; |
b34976b6 | 2036 | return TRUE; |
252b5132 | 2037 | |
70bccea4 | 2038 | error_return: |
deaaf2f3 EC |
2039 | if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents) |
2040 | free (isymbuf); | |
2041 | if (contents != NULL | |
2042 | && elf_section_data (isec)->this_hdr.contents != contents) | |
2043 | free (contents); | |
2044 | if (internal_relocs != NULL | |
2045 | && elf_section_data (isec)->relocs != internal_relocs) | |
2046 | free (internal_relocs); | |
b34976b6 | 2047 | return FALSE; |
252b5132 | 2048 | } |
252b5132 RH |
2049 | \f |
2050 | static reloc_howto_type * | |
55fd94b0 AM |
2051 | ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
2052 | bfd_reloc_code_real_type code) | |
252b5132 | 2053 | { |
7619e7c7 | 2054 | enum elf_ppc_reloc_type r; |
252b5132 | 2055 | |
e47cd125 | 2056 | /* Initialize howto table if not already done. */ |
252b5132 | 2057 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) |
252b5132 RH |
2058 | ppc_elf_howto_init (); |
2059 | ||
55fd94b0 | 2060 | switch (code) |
252b5132 RH |
2061 | { |
2062 | default: | |
55fd94b0 | 2063 | return NULL; |
252b5132 | 2064 | |
7619e7c7 AM |
2065 | case BFD_RELOC_NONE: r = R_PPC_NONE; break; |
2066 | case BFD_RELOC_32: r = R_PPC_ADDR32; break; | |
2067 | case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break; | |
2068 | case BFD_RELOC_16: r = R_PPC_ADDR16; break; | |
2069 | case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break; | |
2070 | case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break; | |
2071 | case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break; | |
2072 | case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break; | |
2073 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break; | |
2074 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break; | |
2075 | case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break; | |
2076 | case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break; | |
2077 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break; | |
2078 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break; | |
2079 | case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break; | |
2080 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break; | |
2081 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break; | |
2082 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break; | |
2083 | case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break; | |
2084 | case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break; | |
2085 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break; | |
2086 | case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break; | |
2087 | case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break; | |
2088 | case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break; | |
2089 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break; | |
2090 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break; | |
2091 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break; | |
2092 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break; | |
2093 | case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break; | |
2094 | case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break; | |
2095 | case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break; | |
2096 | case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break; | |
2097 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break; | |
2098 | case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break; | |
2099 | case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break; | |
2100 | case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break; | |
2101 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break; | |
2102 | case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break; | |
2103 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break; | |
2104 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break; | |
2105 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break; | |
2106 | case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break; | |
2107 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break; | |
2108 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break; | |
2109 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break; | |
2110 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break; | |
2111 | case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break; | |
2112 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break; | |
2113 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break; | |
2114 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break; | |
2115 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break; | |
2116 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break; | |
2117 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break; | |
2118 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break; | |
2119 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break; | |
2120 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break; | |
2121 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break; | |
2122 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break; | |
2123 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break; | |
2124 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break; | |
2125 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break; | |
2126 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break; | |
2127 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break; | |
2128 | case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break; | |
2129 | case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break; | |
2130 | case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break; | |
2131 | case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break; | |
2132 | case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break; | |
2133 | case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break; | |
2134 | case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break; | |
2135 | case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break; | |
2136 | case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break; | |
2137 | case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break; | |
2138 | case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break; | |
2139 | case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break; | |
2140 | case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break; | |
2141 | case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break; | |
2142 | case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break; | |
2143 | case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break; | |
2144 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break; | |
2145 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break; | |
252b5132 RH |
2146 | } |
2147 | ||
55fd94b0 | 2148 | return ppc_elf_howto_table[r]; |
252b5132 RH |
2149 | }; |
2150 | ||
2151 | /* Set the howto pointer for a PowerPC ELF reloc. */ | |
2152 | ||
2153 | static void | |
55fd94b0 AM |
2154 | ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
2155 | arelent *cache_ptr, | |
2156 | Elf_Internal_Rela *dst) | |
252b5132 | 2157 | { |
e47cd125 | 2158 | /* Initialize howto table if not already done. */ |
8da6118f | 2159 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) |
252b5132 RH |
2160 | ppc_elf_howto_init (); |
2161 | ||
2162 | BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max); | |
2163 | cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)]; | |
2164 | } | |
2165 | ||
2166 | /* Handle the R_PPC_ADDR16_HA reloc. */ | |
2167 | ||
2168 | static bfd_reloc_status_type | |
55fd94b0 AM |
2169 | ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
2170 | arelent *reloc_entry, | |
2171 | asymbol *symbol, | |
2172 | void *data ATTRIBUTE_UNUSED, | |
2173 | asection *input_section, | |
2174 | bfd *output_bfd, | |
2175 | char **error_message ATTRIBUTE_UNUSED) | |
252b5132 RH |
2176 | { |
2177 | bfd_vma relocation; | |
2178 | ||
2179 | if (output_bfd != NULL) | |
2180 | { | |
2181 | reloc_entry->address += input_section->output_offset; | |
2182 | return bfd_reloc_ok; | |
2183 | } | |
2184 | ||
2185 | if (reloc_entry->address > input_section->_cooked_size) | |
2186 | return bfd_reloc_outofrange; | |
2187 | ||
2188 | if (bfd_is_com_section (symbol->section)) | |
2189 | relocation = 0; | |
2190 | else | |
2191 | relocation = symbol->value; | |
2192 | ||
2193 | relocation += symbol->section->output_section->vma; | |
2194 | relocation += symbol->section->output_offset; | |
2195 | relocation += reloc_entry->addend; | |
2196 | ||
2197 | reloc_entry->addend += (relocation & 0x8000) << 1; | |
2198 | ||
2199 | return bfd_reloc_continue; | |
2200 | } | |
2201 | ||
7619e7c7 | 2202 | static bfd_reloc_status_type |
55fd94b0 AM |
2203 | ppc_elf_unhandled_reloc (bfd *abfd, |
2204 | arelent *reloc_entry, | |
2205 | asymbol *symbol, | |
2206 | void *data, | |
2207 | asection *input_section, | |
2208 | bfd *output_bfd, | |
2209 | char **error_message) | |
7619e7c7 AM |
2210 | { |
2211 | /* If this is a relocatable link (output_bfd test tells us), just | |
2212 | call the generic function. Any adjustment will be done at final | |
2213 | link time. */ | |
2214 | if (output_bfd != NULL) | |
2215 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
2216 | input_section, output_bfd, error_message); | |
2217 | ||
2218 | if (error_message != NULL) | |
2219 | { | |
2220 | static char buf[60]; | |
55fd94b0 | 2221 | sprintf (buf, _("generic linker can't handle %s"), |
7619e7c7 AM |
2222 | reloc_entry->howto->name); |
2223 | *error_message = buf; | |
2224 | } | |
2225 | return bfd_reloc_dangerous; | |
2226 | } | |
2227 | ||
feee612b AM |
2228 | /* Fix bad default arch selected for a 32 bit input bfd when the |
2229 | default is 64 bit. */ | |
2230 | ||
b34976b6 | 2231 | static bfd_boolean |
55fd94b0 | 2232 | ppc_elf_object_p (bfd *abfd) |
feee612b AM |
2233 | { |
2234 | if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64) | |
2235 | { | |
2236 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
2237 | ||
2238 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32) | |
2239 | { | |
2240 | /* Relies on arch after 64 bit default being 32 bit default. */ | |
2241 | abfd->arch_info = abfd->arch_info->next; | |
2242 | BFD_ASSERT (abfd->arch_info->bits_per_word == 32); | |
2243 | } | |
2244 | } | |
b34976b6 | 2245 | return TRUE; |
feee612b AM |
2246 | } |
2247 | ||
c3668558 | 2248 | /* Function to set whether a module needs the -mrelocatable bit set. */ |
252b5132 | 2249 | |
b34976b6 | 2250 | static bfd_boolean |
55fd94b0 | 2251 | ppc_elf_set_private_flags (bfd *abfd, flagword flags) |
252b5132 RH |
2252 | { |
2253 | BFD_ASSERT (!elf_flags_init (abfd) | |
2254 | || elf_elfheader (abfd)->e_flags == flags); | |
2255 | ||
2256 | elf_elfheader (abfd)->e_flags = flags; | |
b34976b6 AM |
2257 | elf_flags_init (abfd) = TRUE; |
2258 | return TRUE; | |
252b5132 RH |
2259 | } |
2260 | ||
252b5132 | 2261 | /* Merge backend specific data from an object file to the output |
ae9a127f NC |
2262 | object file when linking. */ |
2263 | ||
b34976b6 | 2264 | static bfd_boolean |
55fd94b0 | 2265 | ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) |
252b5132 RH |
2266 | { |
2267 | flagword old_flags; | |
2268 | flagword new_flags; | |
b34976b6 | 2269 | bfd_boolean error; |
252b5132 | 2270 | |
ae9a127f | 2271 | /* Check if we have the same endianess. */ |
82e51918 | 2272 | if (! _bfd_generic_verify_endian_match (ibfd, obfd)) |
b34976b6 | 2273 | return FALSE; |
252b5132 RH |
2274 | |
2275 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
2276 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 2277 | return TRUE; |
252b5132 RH |
2278 | |
2279 | new_flags = elf_elfheader (ibfd)->e_flags; | |
2280 | old_flags = elf_elfheader (obfd)->e_flags; | |
70bccea4 | 2281 | if (!elf_flags_init (obfd)) |
252b5132 | 2282 | { |
70bccea4 | 2283 | /* First call, no flags set. */ |
b34976b6 | 2284 | elf_flags_init (obfd) = TRUE; |
252b5132 RH |
2285 | elf_elfheader (obfd)->e_flags = new_flags; |
2286 | } | |
2287 | ||
70bccea4 AM |
2288 | /* Compatible flags are ok. */ |
2289 | else if (new_flags == old_flags) | |
252b5132 RH |
2290 | ; |
2291 | ||
70bccea4 AM |
2292 | /* Incompatible flags. */ |
2293 | else | |
252b5132 | 2294 | { |
70bccea4 AM |
2295 | /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib |
2296 | to be linked with either. */ | |
b34976b6 | 2297 | error = FALSE; |
252b5132 RH |
2298 | if ((new_flags & EF_PPC_RELOCATABLE) != 0 |
2299 | && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0) | |
2300 | { | |
b34976b6 | 2301 | error = TRUE; |
252b5132 | 2302 | (*_bfd_error_handler) |
55fd94b0 AM |
2303 | (_("%s: compiled with -mrelocatable and linked with " |
2304 | "modules compiled normally"), | |
8f615d07 | 2305 | bfd_archive_filename (ibfd)); |
252b5132 RH |
2306 | } |
2307 | else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0 | |
2308 | && (old_flags & EF_PPC_RELOCATABLE) != 0) | |
2309 | { | |
b34976b6 | 2310 | error = TRUE; |
252b5132 | 2311 | (*_bfd_error_handler) |
55fd94b0 AM |
2312 | (_("%s: compiled normally and linked with " |
2313 | "modules compiled with -mrelocatable"), | |
8f615d07 | 2314 | bfd_archive_filename (ibfd)); |
252b5132 RH |
2315 | } |
2316 | ||
2317 | /* The output is -mrelocatable-lib iff both the input files are. */ | |
2318 | if (! (new_flags & EF_PPC_RELOCATABLE_LIB)) | |
2319 | elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB; | |
2320 | ||
2321 | /* The output is -mrelocatable iff it can't be -mrelocatable-lib, | |
70bccea4 | 2322 | but each input file is either -mrelocatable or -mrelocatable-lib. */ |
252b5132 RH |
2323 | if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB) |
2324 | && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)) | |
2325 | && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))) | |
2326 | elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE; | |
2327 | ||
70bccea4 AM |
2328 | /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if |
2329 | any module uses it. */ | |
252b5132 RH |
2330 | elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB); |
2331 | ||
70bccea4 AM |
2332 | new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB); |
2333 | old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB); | |
252b5132 | 2334 | |
ae9a127f | 2335 | /* Warn about any other mismatches. */ |
252b5132 RH |
2336 | if (new_flags != old_flags) |
2337 | { | |
b34976b6 | 2338 | error = TRUE; |
252b5132 | 2339 | (*_bfd_error_handler) |
55fd94b0 AM |
2340 | (_("%s: uses different e_flags (0x%lx) fields " |
2341 | "than previous modules (0x%lx)"), | |
8f615d07 | 2342 | bfd_archive_filename (ibfd), (long) new_flags, (long) old_flags); |
252b5132 RH |
2343 | } |
2344 | ||
2345 | if (error) | |
2346 | { | |
2347 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 2348 | return FALSE; |
252b5132 RH |
2349 | } |
2350 | } | |
2351 | ||
b34976b6 | 2352 | return TRUE; |
252b5132 | 2353 | } |
252b5132 RH |
2354 | \f |
2355 | /* Handle a PowerPC specific section when reading an object file. This | |
2356 | is called when elfcode.h finds a section with an unknown type. */ | |
2357 | ||
b34976b6 | 2358 | static bfd_boolean |
55fd94b0 | 2359 | ppc_elf_section_from_shdr (bfd *abfd, Elf_Internal_Shdr *hdr, const char *name) |
252b5132 RH |
2360 | { |
2361 | asection *newsect; | |
2362 | flagword flags; | |
2363 | ||
2364 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name)) | |
b34976b6 | 2365 | return FALSE; |
252b5132 RH |
2366 | |
2367 | newsect = hdr->bfd_section; | |
2368 | flags = bfd_get_section_flags (abfd, newsect); | |
2369 | if (hdr->sh_flags & SHF_EXCLUDE) | |
2370 | flags |= SEC_EXCLUDE; | |
2371 | ||
2372 | if (hdr->sh_type == SHT_ORDERED) | |
2373 | flags |= SEC_SORT_ENTRIES; | |
2374 | ||
2375 | bfd_set_section_flags (abfd, newsect, flags); | |
b34976b6 | 2376 | return TRUE; |
252b5132 | 2377 | } |
252b5132 RH |
2378 | \f |
2379 | /* Set up any other section flags and such that may be necessary. */ | |
2380 | ||
b34976b6 | 2381 | static bfd_boolean |
55fd94b0 AM |
2382 | ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, |
2383 | Elf_Internal_Shdr *shdr, | |
2384 | asection *asect) | |
252b5132 RH |
2385 | { |
2386 | if ((asect->flags & SEC_EXCLUDE) != 0) | |
2387 | shdr->sh_flags |= SHF_EXCLUDE; | |
2388 | ||
2389 | if ((asect->flags & SEC_SORT_ENTRIES) != 0) | |
2390 | shdr->sh_type = SHT_ORDERED; | |
2391 | ||
b34976b6 | 2392 | return TRUE; |
252b5132 | 2393 | } |
252b5132 | 2394 | \f |
3dab13f6 AM |
2395 | /* Find a linker generated pointer with a given addend and type. */ |
2396 | ||
2397 | static elf_linker_section_pointers_t * | |
2398 | elf_find_pointer_linker_section | |
2399 | (elf_linker_section_pointers_t *linker_pointers, | |
2400 | bfd_vma addend, | |
58111eb7 | 2401 | elf_linker_section_t *lsect) |
3dab13f6 AM |
2402 | { |
2403 | for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next) | |
58111eb7 | 2404 | if (lsect == linker_pointers->lsect && addend == linker_pointers->addend) |
3dab13f6 AM |
2405 | return linker_pointers; |
2406 | ||
2407 | return NULL; | |
2408 | } | |
2409 | \f | |
2410 | /* Allocate a pointer to live in a linker created section. */ | |
2411 | ||
2412 | static bfd_boolean | |
2413 | elf_create_pointer_linker_section (bfd *abfd, | |
2414 | struct bfd_link_info *info, | |
2415 | elf_linker_section_t *lsect, | |
2416 | struct elf_link_hash_entry *h, | |
2417 | const Elf_Internal_Rela *rel) | |
2418 | { | |
2419 | elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL; | |
2420 | elf_linker_section_pointers_t *linker_section_ptr; | |
2421 | unsigned long r_symndx = ELF32_R_SYM (rel->r_info); | |
2422 | bfd_size_type amt; | |
2423 | ||
2424 | BFD_ASSERT (lsect != NULL); | |
2425 | ||
2426 | /* Is this a global symbol? */ | |
2427 | if (h != NULL) | |
2428 | { | |
58111eb7 AM |
2429 | struct ppc_elf_link_hash_entry *eh; |
2430 | ||
3dab13f6 | 2431 | /* Has this symbol already been allocated? If so, our work is done. */ |
58111eb7 AM |
2432 | eh = (struct ppc_elf_link_hash_entry *) h; |
2433 | if (elf_find_pointer_linker_section (eh->linker_section_pointer, | |
3dab13f6 | 2434 | rel->r_addend, |
58111eb7 | 2435 | lsect)) |
3dab13f6 AM |
2436 | return TRUE; |
2437 | ||
58111eb7 | 2438 | ptr_linker_section_ptr = &eh->linker_section_pointer; |
3dab13f6 AM |
2439 | /* Make sure this symbol is output as a dynamic symbol. */ |
2440 | if (h->dynindx == -1) | |
2441 | { | |
2442 | if (! _bfd_elf_link_record_dynamic_symbol (info, h)) | |
2443 | return FALSE; | |
2444 | } | |
2445 | ||
2446 | if (lsect->rel_section) | |
2447 | lsect->rel_section->_raw_size += sizeof (Elf32_External_Rela); | |
2448 | } | |
2449 | else | |
2450 | { | |
2451 | /* Allocation of a pointer to a local symbol. */ | |
2452 | elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd); | |
2453 | ||
2454 | /* Allocate a table to hold the local symbols if first time. */ | |
2455 | if (!ptr) | |
2456 | { | |
2457 | unsigned int num_symbols = elf_tdata (abfd)->symtab_hdr.sh_info; | |
3dab13f6 AM |
2458 | |
2459 | amt = num_symbols; | |
2460 | amt *= sizeof (elf_linker_section_pointers_t *); | |
58111eb7 | 2461 | ptr = bfd_zalloc (abfd, amt); |
3dab13f6 AM |
2462 | |
2463 | if (!ptr) | |
2464 | return FALSE; | |
2465 | ||
2466 | elf_local_ptr_offsets (abfd) = ptr; | |
3dab13f6 AM |
2467 | } |
2468 | ||
2469 | /* Has this symbol already been allocated? If so, our work is done. */ | |
2470 | if (elf_find_pointer_linker_section (ptr[r_symndx], | |
2471 | rel->r_addend, | |
58111eb7 | 2472 | lsect)) |
3dab13f6 AM |
2473 | return TRUE; |
2474 | ||
2475 | ptr_linker_section_ptr = &ptr[r_symndx]; | |
2476 | ||
2477 | if (info->shared) | |
2478 | { | |
2479 | /* If we are generating a shared object, we need to | |
2480 | output a R_<xxx>_RELATIVE reloc so that the | |
2481 | dynamic linker can adjust this GOT entry. */ | |
2482 | BFD_ASSERT (lsect->rel_section != NULL); | |
2483 | lsect->rel_section->_raw_size += sizeof (Elf32_External_Rela); | |
2484 | } | |
2485 | } | |
2486 | ||
2487 | /* Allocate space for a pointer in the linker section, and allocate | |
2488 | a new pointer record from internal memory. */ | |
2489 | BFD_ASSERT (ptr_linker_section_ptr != NULL); | |
2490 | amt = sizeof (elf_linker_section_pointers_t); | |
2491 | linker_section_ptr = bfd_alloc (abfd, amt); | |
2492 | ||
2493 | if (!linker_section_ptr) | |
2494 | return FALSE; | |
2495 | ||
2496 | linker_section_ptr->next = *ptr_linker_section_ptr; | |
2497 | linker_section_ptr->addend = rel->r_addend; | |
58111eb7 | 2498 | linker_section_ptr->lsect = lsect; |
3dab13f6 AM |
2499 | linker_section_ptr->written_address_p = FALSE; |
2500 | *ptr_linker_section_ptr = linker_section_ptr; | |
2501 | ||
2502 | linker_section_ptr->offset = lsect->section->_raw_size; | |
2503 | lsect->section->_raw_size += 4; | |
2504 | ||
2505 | #ifdef DEBUG | |
2506 | fprintf (stderr, | |
2507 | "Create pointer in linker section %s, offset = %ld, section size = %ld\n", | |
2508 | lsect->name, (long) linker_section_ptr->offset, | |
2509 | (long) lsect->section->_raw_size); | |
2510 | #endif | |
2511 | ||
2512 | return TRUE; | |
2513 | } | |
2514 | \f | |
2515 | #define bfd_put_ptr(BFD, VAL, ADDR) bfd_put_32 (BFD, VAL, ADDR) | |
2516 | ||
2517 | /* Fill in the address for a pointer generated in a linker section. */ | |
2518 | ||
2519 | static bfd_vma | |
2520 | elf_finish_pointer_linker_section (bfd *output_bfd, | |
2521 | bfd *input_bfd, | |
2522 | struct bfd_link_info *info, | |
2523 | elf_linker_section_t *lsect, | |
2524 | struct elf_link_hash_entry *h, | |
2525 | bfd_vma relocation, | |
2526 | const Elf_Internal_Rela *rel, | |
2527 | int relative_reloc) | |
2528 | { | |
2529 | elf_linker_section_pointers_t *linker_section_ptr; | |
2530 | ||
2531 | BFD_ASSERT (lsect != NULL); | |
2532 | ||
2533 | if (h != NULL) | |
2534 | { | |
2535 | /* Handle global symbol. */ | |
58111eb7 AM |
2536 | struct ppc_elf_link_hash_entry *eh; |
2537 | ||
2538 | eh = (struct ppc_elf_link_hash_entry *) h; | |
3dab13f6 | 2539 | linker_section_ptr |
58111eb7 | 2540 | = elf_find_pointer_linker_section (eh->linker_section_pointer, |
3dab13f6 | 2541 | rel->r_addend, |
58111eb7 | 2542 | lsect); |
3dab13f6 AM |
2543 | |
2544 | BFD_ASSERT (linker_section_ptr != NULL); | |
2545 | ||
2546 | if (! elf_hash_table (info)->dynamic_sections_created | |
2547 | || (info->shared | |
2548 | && info->symbolic | |
2549 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))) | |
2550 | { | |
2551 | /* This is actually a static link, or it is a | |
2552 | -Bsymbolic link and the symbol is defined | |
2553 | locally. We must initialize this entry in the | |
2554 | global section. | |
2555 | ||
2556 | When doing a dynamic link, we create a .rela.<xxx> | |
2557 | relocation entry to initialize the value. This | |
2558 | is done in the finish_dynamic_symbol routine. */ | |
2559 | if (!linker_section_ptr->written_address_p) | |
2560 | { | |
2561 | linker_section_ptr->written_address_p = TRUE; | |
2562 | bfd_put_ptr (output_bfd, | |
2563 | relocation + linker_section_ptr->addend, | |
2564 | (lsect->section->contents | |
2565 | + linker_section_ptr->offset)); | |
2566 | } | |
2567 | } | |
2568 | } | |
2569 | else | |
2570 | { | |
2571 | /* Handle local symbol. */ | |
2572 | unsigned long r_symndx = ELF32_R_SYM (rel->r_info); | |
2573 | BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL); | |
2574 | BFD_ASSERT (elf_local_ptr_offsets (input_bfd)[r_symndx] != NULL); | |
2575 | linker_section_ptr = (elf_find_pointer_linker_section | |
2576 | (elf_local_ptr_offsets (input_bfd)[r_symndx], | |
2577 | rel->r_addend, | |
58111eb7 | 2578 | lsect)); |
3dab13f6 AM |
2579 | |
2580 | BFD_ASSERT (linker_section_ptr != NULL); | |
2581 | ||
2582 | /* Write out pointer if it hasn't been rewritten out before. */ | |
2583 | if (!linker_section_ptr->written_address_p) | |
2584 | { | |
2585 | linker_section_ptr->written_address_p = TRUE; | |
2586 | bfd_put_ptr (output_bfd, relocation + linker_section_ptr->addend, | |
2587 | lsect->section->contents + linker_section_ptr->offset); | |
2588 | ||
2589 | if (info->shared) | |
2590 | { | |
58111eb7 AM |
2591 | /* We need to generate a relative reloc for the dynamic |
2592 | linker. */ | |
2593 | ||
3dab13f6 AM |
2594 | asection *srel = lsect->rel_section; |
2595 | Elf_Internal_Rela outrel[MAX_INT_RELS_PER_EXT_REL]; | |
2596 | bfd_byte *erel; | |
9c5bfbb7 | 2597 | const struct elf_backend_data *bed; |
3dab13f6 AM |
2598 | unsigned int i; |
2599 | ||
3dab13f6 AM |
2600 | BFD_ASSERT (srel != NULL); |
2601 | ||
9c5bfbb7 | 2602 | bed = get_elf_backend_data (output_bfd); |
3dab13f6 AM |
2603 | for (i = 0; i < bed->s->int_rels_per_ext_rel; i++) |
2604 | { | |
2605 | outrel[i].r_offset = (lsect->section->output_section->vma | |
2606 | + lsect->section->output_offset | |
2607 | + linker_section_ptr->offset); | |
2608 | outrel[i].r_info = 0; | |
2609 | outrel[i].r_addend = 0; | |
2610 | } | |
2611 | outrel[0].r_info = ELF32_R_INFO (0, relative_reloc); | |
2612 | erel = lsect->section->contents; | |
2613 | erel += (elf_section_data (lsect->section)->rel_count++ | |
2614 | * sizeof (Elf32_External_Rela)); | |
2615 | bfd_elf32_swap_reloca_out (output_bfd, outrel, erel); | |
2616 | } | |
2617 | } | |
2618 | } | |
2619 | ||
2620 | relocation = (lsect->section->output_offset | |
2621 | + linker_section_ptr->offset | |
3dab13f6 AM |
2622 | - lsect->sym_offset); |
2623 | ||
2624 | #ifdef DEBUG | |
2625 | fprintf (stderr, | |
2626 | "Finish pointer in linker section %s, offset = %ld (0x%lx)\n", | |
2627 | lsect->name, (long) relocation, (long) relocation); | |
2628 | #endif | |
2629 | ||
2630 | /* Subtract out the addend, because it will get added back in by the normal | |
2631 | processing. */ | |
2632 | return relocation - linker_section_ptr->addend; | |
2633 | } | |
2634 | \f | |
252b5132 RH |
2635 | /* Create a special linker section */ |
2636 | static elf_linker_section_t * | |
55fd94b0 AM |
2637 | ppc_elf_create_linker_section (bfd *abfd, |
2638 | struct bfd_link_info *info, | |
2639 | enum elf_linker_section_enum which) | |
252b5132 | 2640 | { |
252b5132 | 2641 | elf_linker_section_t *lsect; |
58111eb7 AM |
2642 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); |
2643 | asection *s; | |
2644 | bfd_size_type amt; | |
2645 | flagword flags; | |
2646 | const char *name; | |
2647 | const char *rel_name; | |
2648 | const char *sym_name; | |
2649 | bfd_vma sym_offset; | |
2650 | ||
2651 | /* Both of these sections are (technically) created by the user | |
2652 | putting data in them, so they shouldn't be marked | |
2653 | SEC_LINKER_CREATED. | |
2654 | ||
2655 | The linker creates them so it has somewhere to attach their | |
2656 | respective symbols. In fact, if they were empty it would | |
2657 | be OK to leave the symbol set to 0 (or any random number), because | |
2658 | the appropriate register should never be used. */ | |
2659 | flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY; | |
2660 | sym_offset = 32768; | |
2661 | ||
2662 | switch (which) | |
2663 | { | |
2664 | default: | |
2665 | abort (); | |
2666 | return NULL; | |
252b5132 | 2667 | |
58111eb7 AM |
2668 | case LINKER_SECTION_SDATA: /* .sdata/.sbss section */ |
2669 | name = ".sdata"; | |
2670 | rel_name = ".rela.sdata"; | |
2671 | sym_name = "_SDA_BASE_"; | |
2672 | break; | |
2673 | ||
2674 | case LINKER_SECTION_SDATA2: /* .sdata2/.sbss2 section */ | |
2675 | name = ".sdata2"; | |
2676 | rel_name = ".rela.sdata2"; | |
2677 | sym_name = "_SDA2_BASE_"; | |
2678 | flags |= SEC_READONLY; | |
2679 | break; | |
2680 | } | |
2681 | ||
2682 | /* Record the first bfd that needs the special sections. */ | |
2683 | if (!htab->elf.dynobj) | |
2684 | htab->elf.dynobj = abfd; | |
2685 | ||
2686 | amt = sizeof (elf_linker_section_t); | |
2687 | lsect = bfd_zalloc (htab->elf.dynobj, amt); | |
252b5132 | 2688 | |
58111eb7 AM |
2689 | lsect->sym_offset = sym_offset; |
2690 | ||
2691 | /* See if the sections already exist. */ | |
2692 | s = bfd_get_section_by_name (htab->elf.dynobj, name); | |
2693 | if (s == NULL || (s->flags & flags) != flags) | |
252b5132 | 2694 | { |
58111eb7 AM |
2695 | s = bfd_make_section_anyway (htab->elf.dynobj, name); |
2696 | if (s == NULL | |
2697 | || !bfd_set_section_flags (htab->elf.dynobj, s, flags)) | |
2698 | return NULL; | |
2699 | } | |
2700 | lsect->section = s; | |
252b5132 | 2701 | |
58111eb7 AM |
2702 | if (bfd_get_section_alignment (htab->elf.dynobj, s) < 2 |
2703 | && !bfd_set_section_alignment (htab->elf.dynobj, s, 2)) | |
2704 | return NULL; | |
252b5132 | 2705 | |
58111eb7 AM |
2706 | s->_raw_size = align_power (s->_raw_size, 2); |
2707 | ||
2708 | #ifdef DEBUG | |
2709 | fprintf (stderr, "Creating section %s, current size = %ld\n", | |
2710 | name, (long) s->_raw_size); | |
2711 | #endif | |
2712 | ||
2713 | if (sym_name) | |
2714 | { | |
2715 | struct elf_link_hash_entry *h; | |
2716 | struct bfd_link_hash_entry *bh; | |
2717 | ||
2718 | #ifdef DEBUG | |
2719 | fprintf (stderr, "Adding %s to section %s\n", sym_name, name); | |
2720 | #endif | |
2721 | bh = bfd_link_hash_lookup (info->hash, sym_name, | |
2722 | FALSE, FALSE, FALSE); | |
252b5132 | 2723 | |
58111eb7 AM |
2724 | if ((bh == NULL || bh->type == bfd_link_hash_undefined) |
2725 | && !(_bfd_generic_link_add_one_symbol | |
2726 | (info, abfd, sym_name, BSF_GLOBAL, s, sym_offset, NULL, | |
2727 | FALSE, get_elf_backend_data (abfd)->collect, &bh))) | |
2728 | return NULL; | |
2729 | h = (struct elf_link_hash_entry *) bh; | |
2730 | ||
2731 | h->type = STT_OBJECT; | |
2732 | lsect->sym_hash = h; | |
2733 | ||
2734 | if (info->shared | |
2735 | && ! _bfd_elf_link_record_dynamic_symbol (info, h)) | |
2736 | return NULL; | |
2737 | } | |
2738 | ||
2739 | if (info->shared) | |
2740 | { | |
2741 | s = bfd_make_section_anyway (htab->elf.dynobj, rel_name); | |
2742 | lsect->rel_section = s; | |
2743 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
2744 | | SEC_LINKER_CREATED | SEC_READONLY); | |
2745 | if (s == NULL | |
2746 | || ! bfd_set_section_flags (htab->elf.dynobj, s, flags) | |
2747 | || ! bfd_set_section_alignment (htab->elf.dynobj, s, 2)) | |
2748 | return NULL; | |
252b5132 RH |
2749 | } |
2750 | ||
2751 | return lsect; | |
2752 | } | |
252b5132 | 2753 | \f |
8da6118f KH |
2754 | /* If we have a non-zero sized .sbss2 or .PPC.EMB.sbss0 sections, we |
2755 | need to bump up the number of section headers. */ | |
252b5132 RH |
2756 | |
2757 | static int | |
55fd94b0 | 2758 | ppc_elf_additional_program_headers (bfd *abfd) |
252b5132 RH |
2759 | { |
2760 | asection *s; | |
2761 | int ret; | |
2762 | ||
2763 | ret = 0; | |
2764 | ||
2765 | s = bfd_get_section_by_name (abfd, ".interp"); | |
2766 | if (s != NULL) | |
2767 | ++ret; | |
2768 | ||
2769 | s = bfd_get_section_by_name (abfd, ".sbss2"); | |
2770 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->_raw_size > 0) | |
2771 | ++ret; | |
2772 | ||
2773 | s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0"); | |
2774 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->_raw_size > 0) | |
2775 | ++ret; | |
2776 | ||
2777 | return ret; | |
2778 | } | |
2779 | ||
8da6118f | 2780 | /* Modify the segment map if needed. */ |
252b5132 | 2781 | |
b34976b6 | 2782 | static bfd_boolean |
55fd94b0 | 2783 | ppc_elf_modify_segment_map (bfd *abfd ATTRIBUTE_UNUSED) |
252b5132 | 2784 | { |
b34976b6 | 2785 | return TRUE; |
252b5132 RH |
2786 | } |
2787 | \f | |
41fcb14e AM |
2788 | /* The powerpc .got has a blrl instruction in it. Mark it executable. */ |
2789 | ||
7619e7c7 | 2790 | static bfd_boolean |
55fd94b0 | 2791 | ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info) |
41fcb14e | 2792 | { |
7619e7c7 AM |
2793 | struct ppc_elf_link_hash_table *htab; |
2794 | asection *s; | |
41fcb14e AM |
2795 | flagword flags; |
2796 | ||
2797 | if (!_bfd_elf_create_got_section (abfd, info)) | |
7619e7c7 | 2798 | return FALSE; |
41fcb14e | 2799 | |
7619e7c7 AM |
2800 | htab = ppc_elf_hash_table (info); |
2801 | htab->got = s = bfd_get_section_by_name (abfd, ".got"); | |
41fcb14e AM |
2802 | if (s == NULL) |
2803 | abort (); | |
2804 | ||
2805 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
2806 | | SEC_LINKER_CREATED); | |
2807 | if (!bfd_set_section_flags (abfd, s, flags)) | |
7619e7c7 AM |
2808 | return FALSE; |
2809 | ||
2810 | htab->relgot = bfd_make_section (abfd, ".rela.got"); | |
2811 | if (!htab->relgot | |
2812 | || ! bfd_set_section_flags (abfd, htab->relgot, | |
2813 | (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | |
2814 | | SEC_IN_MEMORY | SEC_LINKER_CREATED | |
2815 | | SEC_READONLY)) | |
2816 | || ! bfd_set_section_alignment (abfd, htab->relgot, 2)) | |
2817 | return FALSE; | |
2818 | ||
2819 | return TRUE; | |
41fcb14e AM |
2820 | } |
2821 | ||
252b5132 RH |
2822 | /* We have to create .dynsbss and .rela.sbss here so that they get mapped |
2823 | to output sections (just like _bfd_elf_create_dynamic_sections has | |
2824 | to create .dynbss and .rela.bss). */ | |
2825 | ||
b34976b6 | 2826 | static bfd_boolean |
55fd94b0 | 2827 | ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 2828 | { |
7619e7c7 AM |
2829 | struct ppc_elf_link_hash_table *htab; |
2830 | asection *s; | |
252b5132 RH |
2831 | flagword flags; |
2832 | ||
3dab13f6 AM |
2833 | htab = ppc_elf_hash_table (info); |
2834 | ||
2835 | if (htab->got == NULL | |
2836 | && !ppc_elf_create_got (abfd, info)) | |
b34976b6 | 2837 | return FALSE; |
41fcb14e | 2838 | |
8da6118f | 2839 | if (!_bfd_elf_create_dynamic_sections (abfd, info)) |
b34976b6 | 2840 | return FALSE; |
252b5132 RH |
2841 | |
2842 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
2843 | | SEC_LINKER_CREATED); | |
2844 | ||
7619e7c7 AM |
2845 | htab->dynbss = bfd_get_section_by_name (abfd, ".dynbss"); |
2846 | htab->dynsbss = s = bfd_make_section (abfd, ".dynsbss"); | |
252b5132 RH |
2847 | if (s == NULL |
2848 | || ! bfd_set_section_flags (abfd, s, SEC_ALLOC)) | |
b34976b6 | 2849 | return FALSE; |
252b5132 RH |
2850 | |
2851 | if (! info->shared) | |
2852 | { | |
7619e7c7 AM |
2853 | htab->relbss = bfd_get_section_by_name (abfd, ".rela.bss"); |
2854 | htab->relsbss = s = bfd_make_section (abfd, ".rela.sbss"); | |
252b5132 RH |
2855 | if (s == NULL |
2856 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
2857 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
b34976b6 | 2858 | return FALSE; |
252b5132 | 2859 | } |
41fcb14e | 2860 | |
7619e7c7 AM |
2861 | htab->relplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
2862 | htab->plt = s = bfd_get_section_by_name (abfd, ".plt"); | |
41fcb14e AM |
2863 | if (s == NULL) |
2864 | abort (); | |
2865 | ||
2866 | flags = SEC_ALLOC | SEC_CODE | SEC_IN_MEMORY | SEC_LINKER_CREATED; | |
2867 | return bfd_set_section_flags (abfd, s, flags); | |
252b5132 RH |
2868 | } |
2869 | ||
2870 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
2871 | regular object. The current definition is in some section of the | |
2872 | dynamic object, but we're not including those sections. We have to | |
2873 | change the definition to something the rest of the link can | |
2874 | understand. */ | |
2875 | ||
b34976b6 | 2876 | static bfd_boolean |
55fd94b0 AM |
2877 | ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
2878 | struct elf_link_hash_entry *h) | |
252b5132 | 2879 | { |
7619e7c7 | 2880 | struct ppc_elf_link_hash_table *htab; |
252b5132 RH |
2881 | asection *s; |
2882 | unsigned int power_of_two; | |
252b5132 RH |
2883 | |
2884 | #ifdef DEBUG | |
70bccea4 AM |
2885 | fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n", |
2886 | h->root.root.string); | |
252b5132 RH |
2887 | #endif |
2888 | ||
2889 | /* Make sure we know what is going on here. */ | |
7619e7c7 AM |
2890 | htab = ppc_elf_hash_table (info); |
2891 | BFD_ASSERT (htab->elf.dynobj != NULL | |
252b5132 RH |
2892 | && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) |
2893 | || h->weakdef != NULL | |
2894 | || ((h->elf_link_hash_flags | |
2895 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
2896 | && (h->elf_link_hash_flags | |
2897 | & ELF_LINK_HASH_REF_REGULAR) != 0 | |
2898 | && (h->elf_link_hash_flags | |
2899 | & ELF_LINK_HASH_DEF_REGULAR) == 0))); | |
2900 | ||
7619e7c7 | 2901 | /* Deal with function syms. */ |
252b5132 RH |
2902 | if (h->type == STT_FUNC |
2903 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
2904 | { | |
7619e7c7 AM |
2905 | /* Clear procedure linkage table information for any symbol that |
2906 | won't need a .plt entry. */ | |
9c7a29a3 | 2907 | if (h->plt.refcount <= 0 |
fc0bffd6 | 2908 | || SYMBOL_CALLS_LOCAL (info, h) |
9c7a29a3 AM |
2909 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT |
2910 | && h->root.type == bfd_link_hash_undefweak)) | |
252b5132 RH |
2911 | { |
2912 | /* A PLT entry is not required/allowed when: | |
2913 | ||
9c7a29a3 AM |
2914 | 1. We are not using ld.so; because then the PLT entry |
2915 | can't be set up, so we can't use one. In this case, | |
2916 | ppc_elf_adjust_dynamic_symbol won't even be called. | |
252b5132 | 2917 | |
9c7a29a3 | 2918 | 2. GC has rendered the entry unused. |
252b5132 | 2919 | |
9c7a29a3 AM |
2920 | 3. We know for certain that a call to this symbol |
2921 | will go to this object, or will remain undefined. */ | |
252b5132 RH |
2922 | h->plt.offset = (bfd_vma) -1; |
2923 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
252b5132 | 2924 | } |
b34976b6 | 2925 | return TRUE; |
252b5132 | 2926 | } |
bbd7ec4a AM |
2927 | else |
2928 | h->plt.offset = (bfd_vma) -1; | |
252b5132 RH |
2929 | |
2930 | /* If this is a weak symbol, and there is a real definition, the | |
2931 | processor independent code will have arranged for us to see the | |
2932 | real definition first, and we can just use the same value. */ | |
2933 | if (h->weakdef != NULL) | |
2934 | { | |
2935 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined | |
2936 | || h->weakdef->root.type == bfd_link_hash_defweak); | |
2937 | h->root.u.def.section = h->weakdef->root.u.def.section; | |
2938 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
a23b6845 AM |
2939 | if (ELIMINATE_COPY_RELOCS) |
2940 | h->elf_link_hash_flags | |
2941 | = ((h->elf_link_hash_flags & ~ELF_LINK_NON_GOT_REF) | |
2942 | | (h->weakdef->elf_link_hash_flags & ELF_LINK_NON_GOT_REF)); | |
b34976b6 | 2943 | return TRUE; |
252b5132 RH |
2944 | } |
2945 | ||
2946 | /* This is a reference to a symbol defined by a dynamic object which | |
2947 | is not a function. */ | |
2948 | ||
2949 | /* If we are creating a shared library, we must presume that the | |
2950 | only references to the symbol are via the global offset table. | |
2951 | For such cases we need not do anything here; the relocations will | |
2952 | be handled correctly by relocate_section. */ | |
2953 | if (info->shared) | |
b34976b6 | 2954 | return TRUE; |
252b5132 | 2955 | |
7619e7c7 AM |
2956 | /* If there are no references to this symbol that do not use the |
2957 | GOT, we don't need to generate a copy reloc. */ | |
2958 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
2959 | return TRUE; | |
2960 | ||
ee05f2fe AM |
2961 | if (ELIMINATE_COPY_RELOCS) |
2962 | { | |
2963 | struct ppc_elf_dyn_relocs *p; | |
2964 | for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next) | |
2965 | { | |
2966 | s = p->sec->output_section; | |
2967 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2968 | break; | |
2969 | } | |
2970 | ||
2971 | /* If we didn't find any dynamic relocs in read-only sections, then | |
2972 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
2973 | if (p == NULL) | |
2974 | { | |
2975 | h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; | |
2976 | return TRUE; | |
2977 | } | |
2978 | } | |
2979 | ||
252b5132 RH |
2980 | /* We must allocate the symbol in our .dynbss section, which will |
2981 | become part of the .bss section of the executable. There will be | |
2982 | an entry for this symbol in the .dynsym section. The dynamic | |
2983 | object will contain position independent code, so all references | |
2984 | from the dynamic object to this symbol will go through the global | |
2985 | offset table. The dynamic linker will use the .dynsym entry to | |
2986 | determine the address it must put in the global offset table, so | |
2987 | both the dynamic object and the regular object will refer to the | |
2988 | same memory location for the variable. | |
2989 | ||
2990 | Of course, if the symbol is sufficiently small, we must instead | |
2991 | allocate it in .sbss. FIXME: It would be better to do this if and | |
2992 | only if there were actually SDAREL relocs for that symbol. */ | |
2993 | ||
7619e7c7 AM |
2994 | if (h->size <= elf_gp_size (htab->elf.dynobj)) |
2995 | s = htab->dynsbss; | |
252b5132 | 2996 | else |
7619e7c7 | 2997 | s = htab->dynbss; |
252b5132 RH |
2998 | BFD_ASSERT (s != NULL); |
2999 | ||
3000 | /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to | |
3001 | copy the initial value out of the dynamic object and into the | |
3002 | runtime process image. We need to remember the offset into the | |
3003 | .rela.bss section we are going to use. */ | |
3004 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
3005 | { | |
3006 | asection *srel; | |
3007 | ||
7619e7c7 AM |
3008 | if (h->size <= elf_gp_size (htab->elf.dynobj)) |
3009 | srel = htab->relsbss; | |
252b5132 | 3010 | else |
7619e7c7 | 3011 | srel = htab->relbss; |
252b5132 RH |
3012 | BFD_ASSERT (srel != NULL); |
3013 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
3014 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; | |
3015 | } | |
3016 | ||
3017 | /* We need to figure out the alignment required for this symbol. I | |
3018 | have no idea how ELF linkers handle this. */ | |
3019 | power_of_two = bfd_log2 (h->size); | |
3020 | if (power_of_two > 4) | |
3021 | power_of_two = 4; | |
3022 | ||
3023 | /* Apply the required alignment. */ | |
3024 | s->_raw_size = BFD_ALIGN (s->_raw_size, | |
3025 | (bfd_size_type) (1 << power_of_two)); | |
7619e7c7 | 3026 | if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) |
252b5132 | 3027 | { |
7619e7c7 | 3028 | if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) |
b34976b6 | 3029 | return FALSE; |
252b5132 RH |
3030 | } |
3031 | ||
3032 | /* Define the symbol as being at this point in the section. */ | |
3033 | h->root.u.def.section = s; | |
3034 | h->root.u.def.value = s->_raw_size; | |
3035 | ||
3036 | /* Increment the section size to make room for the symbol. */ | |
3037 | s->_raw_size += h->size; | |
3038 | ||
b34976b6 | 3039 | return TRUE; |
252b5132 | 3040 | } |
252b5132 | 3041 | \f |
7619e7c7 AM |
3042 | /* This is the condition under which finish_dynamic_symbol will be |
3043 | called from elflink.h. If elflink.h doesn't call our | |
3044 | finish_dynamic_symbol routine, we'll need to do something about | |
3045 | initializing any .plt and .got entries in relocate_section. */ | |
ee05f2fe | 3046 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \ |
7619e7c7 | 3047 | ((DYN) \ |
ee05f2fe | 3048 | && ((SHARED) \ |
7619e7c7 AM |
3049 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ |
3050 | && ((H)->dynindx != -1 \ | |
3051 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) | |
3052 | ||
ee05f2fe AM |
3053 | /* Of those relocs that might be copied as dynamic relocs, this macro |
3054 | selects those that must be copied when linking a shared library, | |
3055 | even when the symbol is local. */ | |
3056 | ||
3057 | #define MUST_BE_DYN_RELOC(RTYPE) \ | |
3058 | ((RTYPE) != R_PPC_REL24 \ | |
3059 | && (RTYPE) != R_PPC_REL14 \ | |
3060 | && (RTYPE) != R_PPC_REL14_BRTAKEN \ | |
3061 | && (RTYPE) != R_PPC_REL14_BRNTAKEN \ | |
3062 | && (RTYPE) != R_PPC_REL32) | |
3063 | ||
7fce784e AS |
3064 | /* Allocate space in associated reloc sections for dynamic relocs. */ |
3065 | ||
7619e7c7 | 3066 | static bfd_boolean |
55fd94b0 | 3067 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
7619e7c7 | 3068 | { |
55fd94b0 | 3069 | struct bfd_link_info *info = inf; |
7619e7c7 AM |
3070 | struct ppc_elf_link_hash_entry *eh; |
3071 | struct ppc_elf_link_hash_table *htab; | |
3072 | struct ppc_elf_dyn_relocs *p; | |
3073 | ||
3074 | if (h->root.type == bfd_link_hash_indirect) | |
3075 | return TRUE; | |
3076 | ||
3077 | if (h->root.type == bfd_link_hash_warning) | |
3078 | /* When warning symbols are created, they **replace** the "real" | |
3079 | entry in the hash table, thus we never get to see the real | |
3080 | symbol in a hash traversal. So look at it now. */ | |
3081 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3082 | ||
3083 | htab = ppc_elf_hash_table (info); | |
3084 | if (htab->elf.dynamic_sections_created | |
9c7a29a3 | 3085 | && h->plt.refcount > 0) |
7619e7c7 AM |
3086 | { |
3087 | /* Make sure this symbol is output as a dynamic symbol. */ | |
3088 | if (h->dynindx == -1 | |
3089 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
3090 | { | |
3091 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
3092 | return FALSE; | |
3093 | } | |
3094 | ||
ee05f2fe AM |
3095 | if (info->shared |
3096 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)) | |
7619e7c7 AM |
3097 | { |
3098 | asection *s = htab->plt; | |
3099 | ||
3100 | /* If this is the first .plt entry, make room for the special | |
3101 | first entry. */ | |
3102 | if (s->_raw_size == 0) | |
3103 | s->_raw_size += PLT_INITIAL_ENTRY_SIZE; | |
3104 | ||
3105 | /* The PowerPC PLT is actually composed of two parts, the | |
3106 | first part is 2 words (for a load and a jump), and then | |
3107 | there is a remaining word available at the end. */ | |
3108 | h->plt.offset = (PLT_INITIAL_ENTRY_SIZE | |
3109 | + (PLT_SLOT_SIZE | |
3110 | * ((s->_raw_size - PLT_INITIAL_ENTRY_SIZE) | |
3111 | / PLT_ENTRY_SIZE))); | |
3112 | ||
3113 | /* If this symbol is not defined in a regular file, and we | |
3114 | are not generating a shared library, then set the symbol | |
3115 | to this location in the .plt. This is required to make | |
3116 | function pointers compare as equal between the normal | |
3117 | executable and the shared library. */ | |
3118 | if (! info->shared | |
3119 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
3120 | { | |
3121 | h->root.u.def.section = s; | |
3122 | h->root.u.def.value = h->plt.offset; | |
3123 | } | |
3124 | ||
3125 | /* Make room for this entry. After the 8192nd entry, room | |
3126 | for two entries is allocated. */ | |
3127 | s->_raw_size += PLT_ENTRY_SIZE; | |
3128 | if ((s->_raw_size - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE | |
f2c822e3 | 3129 | > PLT_NUM_SINGLE_ENTRIES) |
7619e7c7 AM |
3130 | s->_raw_size += PLT_ENTRY_SIZE; |
3131 | ||
3132 | /* We also need to make an entry in the .rela.plt section. */ | |
3133 | htab->relplt->_raw_size += sizeof (Elf32_External_Rela); | |
3134 | } | |
3135 | else | |
3136 | { | |
3137 | h->plt.offset = (bfd_vma) -1; | |
3138 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
3139 | } | |
3140 | } | |
3141 | else | |
3142 | { | |
3143 | h->plt.offset = (bfd_vma) -1; | |
3144 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
3145 | } | |
7fce784e | 3146 | |
7619e7c7 AM |
3147 | eh = (struct ppc_elf_link_hash_entry *) h; |
3148 | if (eh->elf.got.refcount > 0) | |
3149 | { | |
3150 | /* Make sure this symbol is output as a dynamic symbol. */ | |
3151 | if (eh->elf.dynindx == -1 | |
3152 | && (eh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
3153 | { | |
3154 | if (!bfd_elf32_link_record_dynamic_symbol (info, &eh->elf)) | |
3155 | return FALSE; | |
3156 | } | |
7fce784e | 3157 | |
7619e7c7 AM |
3158 | if (eh->tls_mask == (TLS_TLS | TLS_LD) |
3159 | && !(eh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)) | |
3160 | /* If just an LD reloc, we'll just use htab->tlsld_got.offset. */ | |
3161 | eh->elf.got.offset = (bfd_vma) -1; | |
3162 | else | |
3163 | { | |
3164 | bfd_boolean dyn; | |
3165 | eh->elf.got.offset = htab->got->_raw_size; | |
3166 | if ((eh->tls_mask & TLS_TLS) != 0) | |
3167 | { | |
70bccea4 AM |
3168 | if ((eh->tls_mask & TLS_LD) != 0) |
3169 | htab->got->_raw_size += 8; | |
3170 | if ((eh->tls_mask & TLS_GD) != 0) | |
7619e7c7 AM |
3171 | htab->got->_raw_size += 8; |
3172 | if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0) | |
3173 | htab->got->_raw_size += 4; | |
3174 | if ((eh->tls_mask & TLS_DTPREL) != 0) | |
3175 | htab->got->_raw_size += 4; | |
3176 | } | |
3177 | else | |
3178 | htab->got->_raw_size += 4; | |
3179 | dyn = htab->elf.dynamic_sections_created; | |
4e795f50 AM |
3180 | if ((info->shared |
3181 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf)) | |
3182 | && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT | |
3183 | || eh->elf.root.type != bfd_link_hash_undefweak)) | |
7619e7c7 AM |
3184 | { |
3185 | /* All the entries we allocated need relocs. */ | |
3186 | htab->relgot->_raw_size | |
3187 | += ((htab->got->_raw_size - eh->elf.got.offset) / 4 | |
3188 | * sizeof (Elf32_External_Rela)); | |
3189 | /* Except LD only needs one. */ | |
3190 | if ((eh->tls_mask & TLS_LD) != 0) | |
3191 | htab->relgot->_raw_size -= sizeof (Elf32_External_Rela); | |
3192 | } | |
3193 | } | |
3194 | } | |
3195 | else | |
3196 | eh->elf.got.offset = (bfd_vma) -1; | |
7fce784e | 3197 | |
ee05f2fe AM |
3198 | if (eh->dyn_relocs == NULL) |
3199 | return TRUE; | |
3200 | ||
3201 | /* In the shared -Bsymbolic case, discard space allocated for | |
3202 | dynamic pc-relative relocs against symbols which turn out to be | |
3203 | defined in regular objects. For the normal shared case, discard | |
3204 | space for relocs that have become local due to symbol visibility | |
3205 | changes. */ | |
586119b3 | 3206 | |
ee05f2fe AM |
3207 | if (info->shared) |
3208 | { | |
9c7a29a3 AM |
3209 | /* Relocs that use pc_count are those that appear on a call insn, |
3210 | or certain REL relocs (see MUST_BE_DYN_RELOC) that can be | |
3211 | generated via assembly. We want calls to protected symbols to | |
3212 | resolve directly to the function rather than going via the plt. | |
3213 | If people want function pointer comparisons to work as expected | |
55fd94b0 | 3214 | then they should avoid writing weird assembly. */ |
09695f56 | 3215 | if (SYMBOL_CALLS_LOCAL (info, h)) |
ee05f2fe AM |
3216 | { |
3217 | struct ppc_elf_dyn_relocs **pp; | |
3218 | ||
3219 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
3220 | { | |
3221 | p->count -= p->pc_count; | |
3222 | p->pc_count = 0; | |
3223 | if (p->count == 0) | |
3224 | *pp = p->next; | |
3225 | else | |
3226 | pp = &p->next; | |
3227 | } | |
3228 | } | |
4e795f50 AM |
3229 | |
3230 | /* Also discard relocs on undefined weak syms with non-default | |
3231 | visibility. */ | |
3232 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
3233 | && h->root.type == bfd_link_hash_undefweak) | |
3234 | eh->dyn_relocs = NULL; | |
ee05f2fe AM |
3235 | } |
3236 | else if (ELIMINATE_COPY_RELOCS) | |
3237 | { | |
3238 | /* For the non-shared case, discard space for relocs against | |
3239 | symbols which turn out to need copy relocs or are not | |
3240 | dynamic. */ | |
3241 | ||
3242 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
3243 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
3244 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
3245 | { | |
3246 | /* Make sure this symbol is output as a dynamic symbol. | |
3247 | Undefined weak syms won't yet be marked as dynamic. */ | |
3248 | if (h->dynindx == -1 | |
3249 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
3250 | { | |
3251 | if (! bfd_elf64_link_record_dynamic_symbol (info, h)) | |
3252 | return FALSE; | |
3253 | } | |
3254 | ||
3255 | /* If that succeeded, we know we'll be keeping all the | |
3256 | relocs. */ | |
3257 | if (h->dynindx != -1) | |
3258 | goto keep; | |
3259 | } | |
3260 | ||
3261 | eh->dyn_relocs = NULL; | |
3262 | ||
3263 | keep: ; | |
3264 | } | |
3265 | ||
3266 | /* Finally, allocate space. */ | |
7619e7c7 | 3267 | for (p = eh->dyn_relocs; p != NULL; p = p->next) |
7fce784e AS |
3268 | { |
3269 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
3270 | sreloc->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
3271 | } | |
3272 | ||
3273 | return TRUE; | |
3274 | } | |
3275 | ||
3276 | /* Find any dynamic relocs that apply to read-only sections. */ | |
3277 | ||
3278 | static bfd_boolean | |
55fd94b0 | 3279 | readonly_dynrelocs (struct elf_link_hash_entry *h, void *info) |
7fce784e AS |
3280 | { |
3281 | struct ppc_elf_dyn_relocs *p; | |
3282 | ||
3283 | if (h->root.type == bfd_link_hash_indirect) | |
3284 | return TRUE; | |
3285 | ||
3286 | if (h->root.type == bfd_link_hash_warning) | |
3287 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3288 | ||
3289 | for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next) | |
3290 | { | |
3291 | asection *s = p->sec->output_section; | |
3292 | ||
3293 | if (s != NULL | |
3294 | && ((s->flags & (SEC_READONLY | SEC_ALLOC)) | |
3295 | == (SEC_READONLY | SEC_ALLOC))) | |
3296 | { | |
3297 | ((struct bfd_link_info *) info)->flags |= DF_TEXTREL; | |
3298 | ||
3299 | /* Not an error, just cut short the traversal. */ | |
3300 | return FALSE; | |
3301 | } | |
3302 | } | |
3303 | return TRUE; | |
3304 | } | |
3305 | ||
252b5132 RH |
3306 | /* Set the sizes of the dynamic sections. */ |
3307 | ||
b34976b6 | 3308 | static bfd_boolean |
55fd94b0 AM |
3309 | ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
3310 | struct bfd_link_info *info) | |
252b5132 | 3311 | { |
7619e7c7 | 3312 | struct ppc_elf_link_hash_table *htab; |
252b5132 | 3313 | asection *s; |
b34976b6 | 3314 | bfd_boolean relocs; |
7fce784e | 3315 | bfd *ibfd; |
252b5132 RH |
3316 | |
3317 | #ifdef DEBUG | |
3318 | fprintf (stderr, "ppc_elf_size_dynamic_sections called\n"); | |
3319 | #endif | |
3320 | ||
7619e7c7 AM |
3321 | htab = ppc_elf_hash_table (info); |
3322 | BFD_ASSERT (htab->elf.dynobj != NULL); | |
252b5132 RH |
3323 | |
3324 | if (elf_hash_table (info)->dynamic_sections_created) | |
3325 | { | |
3326 | /* Set the contents of the .interp section to the interpreter. */ | |
36af4a4e | 3327 | if (info->executable) |
252b5132 | 3328 | { |
7619e7c7 | 3329 | s = bfd_get_section_by_name (htab->elf.dynobj, ".interp"); |
252b5132 RH |
3330 | BFD_ASSERT (s != NULL); |
3331 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; | |
3332 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
3333 | } | |
3334 | } | |
7619e7c7 AM |
3335 | |
3336 | if (htab->tlsld_got.refcount > 0) | |
252b5132 | 3337 | { |
7619e7c7 AM |
3338 | htab->tlsld_got.offset = htab->got->_raw_size; |
3339 | htab->got->_raw_size += 8; | |
3340 | if (info->shared) | |
3341 | htab->relgot->_raw_size += sizeof (Elf32_External_Rela); | |
252b5132 | 3342 | } |
7619e7c7 AM |
3343 | else |
3344 | htab->tlsld_got.offset = (bfd_vma) -1; | |
252b5132 | 3345 | |
7619e7c7 AM |
3346 | /* Set up .got offsets for local syms, and space for local dynamic |
3347 | relocs. */ | |
7fce784e AS |
3348 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
3349 | { | |
7619e7c7 AM |
3350 | bfd_signed_vma *local_got; |
3351 | bfd_signed_vma *end_local_got; | |
3352 | char *lgot_masks; | |
3353 | bfd_size_type locsymcount; | |
3354 | Elf_Internal_Shdr *symtab_hdr; | |
3355 | asection *srel; | |
3356 | ||
7fce784e AS |
3357 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
3358 | continue; | |
3359 | ||
3360 | for (s = ibfd->sections; s != NULL; s = s->next) | |
3361 | { | |
3362 | struct ppc_elf_dyn_relocs *p; | |
3363 | ||
3364 | for (p = ((struct ppc_elf_dyn_relocs *) | |
70bccea4 AM |
3365 | elf_section_data (s)->local_dynrel); |
3366 | p != NULL; | |
3367 | p = p->next) | |
7fce784e AS |
3368 | { |
3369 | if (!bfd_is_abs_section (p->sec) | |
3370 | && bfd_is_abs_section (p->sec->output_section)) | |
3371 | { | |
3372 | /* Input section has been discarded, either because | |
3373 | it is a copy of a linkonce section or due to | |
3374 | linker script /DISCARD/, so we'll be discarding | |
3375 | the relocs too. */ | |
3376 | } | |
3377 | else if (p->count != 0) | |
3378 | { | |
3379 | elf_section_data (p->sec)->sreloc->_raw_size | |
3380 | += p->count * sizeof (Elf32_External_Rela); | |
3381 | if ((p->sec->output_section->flags | |
3382 | & (SEC_READONLY | SEC_ALLOC)) | |
3383 | == (SEC_READONLY | SEC_ALLOC)) | |
3384 | info->flags |= DF_TEXTREL; | |
3385 | } | |
3386 | } | |
3387 | } | |
7619e7c7 AM |
3388 | |
3389 | local_got = elf_local_got_refcounts (ibfd); | |
3390 | if (!local_got) | |
3391 | continue; | |
3392 | ||
3393 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
3394 | locsymcount = symtab_hdr->sh_info; | |
3395 | end_local_got = local_got + locsymcount; | |
3396 | lgot_masks = (char *) end_local_got; | |
3397 | s = htab->got; | |
3398 | srel = htab->relgot; | |
3399 | for (; local_got < end_local_got; ++local_got, ++lgot_masks) | |
3400 | if (*local_got > 0) | |
3401 | { | |
3402 | if (*lgot_masks == (TLS_TLS | TLS_LD)) | |
3403 | { | |
3404 | /* If just an LD reloc, we'll just use | |
3405 | htab->tlsld_got.offset. */ | |
3406 | if (htab->tlsld_got.offset == (bfd_vma) -1) | |
3407 | { | |
3408 | htab->tlsld_got.offset = s->_raw_size; | |
3409 | s->_raw_size += 8; | |
3410 | if (info->shared) | |
3411 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
3412 | } | |
3413 | *local_got = (bfd_vma) -1; | |
3414 | } | |
3415 | else | |
3416 | { | |
3417 | *local_got = s->_raw_size; | |
3418 | if ((*lgot_masks & TLS_TLS) != 0) | |
3419 | { | |
3420 | if ((*lgot_masks & TLS_GD) != 0) | |
3421 | s->_raw_size += 8; | |
3422 | if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0) | |
3423 | s->_raw_size += 4; | |
3424 | if ((*lgot_masks & TLS_DTPREL) != 0) | |
3425 | s->_raw_size += 4; | |
3426 | } | |
3427 | else | |
3428 | s->_raw_size += 4; | |
3429 | if (info->shared) | |
3430 | srel->_raw_size += ((s->_raw_size - *local_got) / 4 | |
3431 | * sizeof (Elf32_External_Rela)); | |
3432 | } | |
3433 | } | |
3434 | else | |
3435 | *local_got = (bfd_vma) -1; | |
7fce784e AS |
3436 | } |
3437 | ||
3438 | /* Allocate space for global sym dynamic relocs. */ | |
7619e7c7 | 3439 | elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info); |
7fce784e | 3440 | |
7619e7c7 AM |
3441 | /* We've now determined the sizes of the various dynamic sections. |
3442 | Allocate memory for them. */ | |
b34976b6 | 3443 | relocs = FALSE; |
7619e7c7 | 3444 | for (s = htab->elf.dynobj->sections; s != NULL; s = s->next) |
252b5132 | 3445 | { |
252b5132 RH |
3446 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
3447 | continue; | |
3448 | ||
7619e7c7 AM |
3449 | if (s == htab->plt |
3450 | || s == htab->got | |
3451 | || (htab->sdata != NULL && s == htab->sdata->section) | |
3452 | || (htab->sdata2 != NULL && s == htab->sdata2->section)) | |
252b5132 | 3453 | { |
7619e7c7 AM |
3454 | /* Strip this section if we don't need it; see the |
3455 | comment below. */ | |
252b5132 | 3456 | } |
7619e7c7 | 3457 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) |
252b5132 RH |
3458 | { |
3459 | if (s->_raw_size == 0) | |
3460 | { | |
3461 | /* If we don't need this section, strip it from the | |
3462 | output file. This is mostly to handle .rela.bss and | |
3463 | .rela.plt. We must create both sections in | |
3464 | create_dynamic_sections, because they must be created | |
3465 | before the linker maps input sections to output | |
3466 | sections. The linker does that before | |
3467 | adjust_dynamic_symbol is called, and it is that | |
3468 | function which decides whether anything needs to go | |
3469 | into these sections. */ | |
252b5132 RH |
3470 | } |
3471 | else | |
3472 | { | |
c3668558 | 3473 | /* Remember whether there are any relocation sections. */ |
b34976b6 | 3474 | relocs = TRUE; |
252b5132 | 3475 | |
252b5132 RH |
3476 | /* We use the reloc_count field as a counter if we need |
3477 | to copy relocs into the output file. */ | |
3478 | s->reloc_count = 0; | |
3479 | } | |
3480 | } | |
7619e7c7 | 3481 | else |
252b5132 RH |
3482 | { |
3483 | /* It's not one of our sections, so don't allocate space. */ | |
3484 | continue; | |
3485 | } | |
3486 | ||
7619e7c7 | 3487 | if (s->_raw_size == 0) |
252b5132 | 3488 | { |
7f8d5fc9 | 3489 | _bfd_strip_section_from_output (info, s); |
252b5132 RH |
3490 | continue; |
3491 | } | |
3492 | ||
3493 | /* Allocate memory for the section contents. */ | |
55fd94b0 | 3494 | s->contents = bfd_zalloc (htab->elf.dynobj, s->_raw_size); |
7619e7c7 | 3495 | if (s->contents == NULL) |
b34976b6 | 3496 | return FALSE; |
252b5132 RH |
3497 | } |
3498 | ||
7619e7c7 | 3499 | if (htab->elf.dynamic_sections_created) |
252b5132 RH |
3500 | { |
3501 | /* Add some entries to the .dynamic section. We fill in the | |
3502 | values later, in ppc_elf_finish_dynamic_sections, but we | |
3503 | must add the entries now so that we get the correct size for | |
3504 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
3505 | dynamic linker and used by the debugger. */ | |
dc810e39 | 3506 | #define add_dynamic_entry(TAG, VAL) \ |
55fd94b0 | 3507 | bfd_elf32_add_dynamic_entry (info, (TAG), (VAL)) |
dc810e39 | 3508 | |
36af4a4e | 3509 | if (info->executable) |
252b5132 | 3510 | { |
dc810e39 | 3511 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 3512 | return FALSE; |
252b5132 RH |
3513 | } |
3514 | ||
7619e7c7 | 3515 | if (htab->plt != NULL && htab->plt->_raw_size != 0) |
252b5132 | 3516 | { |
dc810e39 AM |
3517 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
3518 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
3519 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
3520 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 3521 | return FALSE; |
252b5132 RH |
3522 | } |
3523 | ||
3524 | if (relocs) | |
3525 | { | |
dc810e39 AM |
3526 | if (!add_dynamic_entry (DT_RELA, 0) |
3527 | || !add_dynamic_entry (DT_RELASZ, 0) | |
3528 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
b34976b6 | 3529 | return FALSE; |
252b5132 RH |
3530 | } |
3531 | ||
7fce784e AS |
3532 | /* If any dynamic relocs apply to a read-only section, then we |
3533 | need a DT_TEXTREL entry. */ | |
3534 | if ((info->flags & DF_TEXTREL) == 0) | |
3535 | elf_link_hash_traverse (elf_hash_table (info), readonly_dynrelocs, | |
55fd94b0 | 3536 | info); |
7fce784e | 3537 | |
29c2fb7c | 3538 | if ((info->flags & DF_TEXTREL) != 0) |
252b5132 | 3539 | { |
dc810e39 | 3540 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 3541 | return FALSE; |
252b5132 RH |
3542 | } |
3543 | } | |
dc810e39 | 3544 | #undef add_dynamic_entry |
252b5132 | 3545 | |
b34976b6 | 3546 | return TRUE; |
252b5132 | 3547 | } |
252b5132 | 3548 | \f |
7619e7c7 | 3549 | static bfd_boolean |
55fd94b0 AM |
3550 | update_local_sym_info (bfd *abfd, |
3551 | Elf_Internal_Shdr *symtab_hdr, | |
3552 | unsigned long r_symndx, | |
3553 | int tls_type) | |
7619e7c7 AM |
3554 | { |
3555 | bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd); | |
3556 | char *local_got_tls_masks; | |
3557 | ||
3558 | if (local_got_refcounts == NULL) | |
3559 | { | |
3560 | bfd_size_type size = symtab_hdr->sh_info; | |
3561 | ||
3562 | size *= sizeof (*local_got_refcounts) + sizeof (*local_got_tls_masks); | |
55fd94b0 | 3563 | local_got_refcounts = bfd_zalloc (abfd, size); |
7619e7c7 AM |
3564 | if (local_got_refcounts == NULL) |
3565 | return FALSE; | |
3566 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
3567 | } | |
3568 | ||
3569 | local_got_refcounts[r_symndx] += 1; | |
3570 | local_got_tls_masks = (char *) (local_got_refcounts + symtab_hdr->sh_info); | |
3571 | local_got_tls_masks[r_symndx] |= tls_type; | |
3572 | return TRUE; | |
3573 | } | |
3574 | ||
3575 | static void | |
55fd94b0 | 3576 | bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type) |
7619e7c7 AM |
3577 | { |
3578 | (*_bfd_error_handler) | |
3579 | (_("%s: relocation %s cannot be used when making a shared object"), | |
3580 | bfd_archive_filename (abfd), | |
55fd94b0 | 3581 | ppc_elf_howto_table[r_type]->name); |
7619e7c7 AM |
3582 | bfd_set_error (bfd_error_bad_value); |
3583 | } | |
3584 | ||
252b5132 RH |
3585 | /* Look through the relocs for a section during the first phase, and |
3586 | allocate space in the global offset table or procedure linkage | |
3587 | table. */ | |
3588 | ||
b34976b6 | 3589 | static bfd_boolean |
55fd94b0 AM |
3590 | ppc_elf_check_relocs (bfd *abfd, |
3591 | struct bfd_link_info *info, | |
3592 | asection *sec, | |
3593 | const Elf_Internal_Rela *relocs) | |
252b5132 | 3594 | { |
7619e7c7 | 3595 | struct ppc_elf_link_hash_table *htab; |
252b5132 | 3596 | Elf_Internal_Shdr *symtab_hdr; |
7619e7c7 | 3597 | struct elf_link_hash_entry **sym_hashes; |
252b5132 RH |
3598 | const Elf_Internal_Rela *rel; |
3599 | const Elf_Internal_Rela *rel_end; | |
252b5132 | 3600 | asection *sreloc; |
252b5132 | 3601 | |
1049f94e | 3602 | if (info->relocatable) |
b34976b6 | 3603 | return TRUE; |
252b5132 RH |
3604 | |
3605 | #ifdef DEBUG | |
3606 | fprintf (stderr, "ppc_elf_check_relocs called for section %s in %s\n", | |
3607 | bfd_get_section_name (abfd, sec), | |
8f615d07 | 3608 | bfd_archive_filename (abfd)); |
252b5132 RH |
3609 | #endif |
3610 | ||
e47cd125 AM |
3611 | /* Initialize howto table if not already done. */ |
3612 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) | |
3613 | ppc_elf_howto_init (); | |
3614 | ||
252b5132 RH |
3615 | /* Create the linker generated sections all the time so that the |
3616 | special symbols are created. */ | |
7619e7c7 AM |
3617 | htab = ppc_elf_hash_table (info); |
3618 | if (htab->sdata == NULL) | |
252b5132 | 3619 | { |
58111eb7 AM |
3620 | htab->sdata = ppc_elf_create_linker_section (abfd, info, |
3621 | LINKER_SECTION_SDATA); | |
7619e7c7 | 3622 | if (htab->sdata == NULL) |
b34976b6 | 3623 | return FALSE; |
252b5132 RH |
3624 | } |
3625 | ||
7619e7c7 | 3626 | if (htab->sdata2 == NULL) |
252b5132 | 3627 | { |
58111eb7 AM |
3628 | htab->sdata2 = ppc_elf_create_linker_section (abfd, info, |
3629 | LINKER_SECTION_SDATA2); | |
7619e7c7 | 3630 | if (htab->sdata2 == NULL) |
b34976b6 | 3631 | return FALSE; |
252b5132 RH |
3632 | } |
3633 | ||
252b5132 | 3634 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
252b5132 | 3635 | sym_hashes = elf_sym_hashes (abfd); |
252b5132 RH |
3636 | sreloc = NULL; |
3637 | ||
3638 | rel_end = relocs + sec->reloc_count; | |
3639 | for (rel = relocs; rel < rel_end; rel++) | |
3640 | { | |
3641 | unsigned long r_symndx; | |
7619e7c7 | 3642 | enum elf_ppc_reloc_type r_type; |
252b5132 | 3643 | struct elf_link_hash_entry *h; |
7619e7c7 | 3644 | int tls_type = 0; |
252b5132 RH |
3645 | |
3646 | r_symndx = ELF32_R_SYM (rel->r_info); | |
3647 | if (r_symndx < symtab_hdr->sh_info) | |
3648 | h = NULL; | |
3649 | else | |
3650 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
3651 | ||
3652 | /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got. | |
3653 | This shows up in particular in an R_PPC_ADDR32 in the eabi | |
3654 | startup code. */ | |
3655 | if (h && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
3656 | { | |
7619e7c7 | 3657 | if (htab->got == NULL) |
252b5132 | 3658 | { |
7619e7c7 AM |
3659 | if (htab->elf.dynobj == NULL) |
3660 | htab->elf.dynobj = abfd; | |
3661 | if (!ppc_elf_create_got (htab->elf.dynobj, info)) | |
b34976b6 | 3662 | return FALSE; |
252b5132 RH |
3663 | } |
3664 | } | |
3665 | ||
55fd94b0 | 3666 | r_type = ELF32_R_TYPE (rel->r_info); |
7619e7c7 | 3667 | switch (r_type) |
252b5132 | 3668 | { |
7619e7c7 AM |
3669 | case R_PPC_GOT_TLSLD16: |
3670 | case R_PPC_GOT_TLSLD16_LO: | |
3671 | case R_PPC_GOT_TLSLD16_HI: | |
3672 | case R_PPC_GOT_TLSLD16_HA: | |
3673 | htab->tlsld_got.refcount += 1; | |
3674 | tls_type = TLS_TLS | TLS_LD; | |
3675 | goto dogottls; | |
3676 | ||
3677 | case R_PPC_GOT_TLSGD16: | |
3678 | case R_PPC_GOT_TLSGD16_LO: | |
3679 | case R_PPC_GOT_TLSGD16_HI: | |
3680 | case R_PPC_GOT_TLSGD16_HA: | |
3681 | tls_type = TLS_TLS | TLS_GD; | |
3682 | goto dogottls; | |
3683 | ||
3684 | case R_PPC_GOT_TPREL16: | |
3685 | case R_PPC_GOT_TPREL16_LO: | |
3686 | case R_PPC_GOT_TPREL16_HI: | |
3687 | case R_PPC_GOT_TPREL16_HA: | |
3688 | if (info->shared) | |
3689 | info->flags |= DF_STATIC_TLS; | |
3690 | tls_type = TLS_TLS | TLS_TPREL; | |
3691 | goto dogottls; | |
3692 | ||
3693 | case R_PPC_GOT_DTPREL16: | |
3694 | case R_PPC_GOT_DTPREL16_LO: | |
3695 | case R_PPC_GOT_DTPREL16_HI: | |
3696 | case R_PPC_GOT_DTPREL16_HA: | |
3697 | tls_type = TLS_TLS | TLS_DTPREL; | |
3698 | dogottls: | |
3699 | sec->has_tls_reloc = 1; | |
3700 | /* Fall thru */ | |
3701 | ||
70bccea4 | 3702 | /* GOT16 relocations */ |
252b5132 RH |
3703 | case R_PPC_GOT16: |
3704 | case R_PPC_GOT16_LO: | |
3705 | case R_PPC_GOT16_HI: | |
3706 | case R_PPC_GOT16_HA: | |
3707 | /* This symbol requires a global offset table entry. */ | |
7619e7c7 | 3708 | if (htab->got == NULL) |
252b5132 | 3709 | { |
7619e7c7 AM |
3710 | if (htab->elf.dynobj == NULL) |
3711 | htab->elf.dynobj = abfd; | |
3712 | if (!ppc_elf_create_got (htab->elf.dynobj, info)) | |
b34976b6 | 3713 | return FALSE; |
252b5132 | 3714 | } |
252b5132 RH |
3715 | if (h != NULL) |
3716 | { | |
7619e7c7 AM |
3717 | h->got.refcount += 1; |
3718 | ppc_elf_hash_entry (h)->tls_mask |= tls_type; | |
252b5132 RH |
3719 | } |
3720 | else | |
7619e7c7 AM |
3721 | /* This is a global offset table entry for a local symbol. */ |
3722 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type)) | |
3723 | return FALSE; | |
252b5132 RH |
3724 | break; |
3725 | ||
70bccea4 | 3726 | /* Indirect .sdata relocation. */ |
252b5132 RH |
3727 | case R_PPC_EMB_SDAI16: |
3728 | if (info->shared) | |
3729 | { | |
7619e7c7 | 3730 | bad_shared_reloc (abfd, r_type); |
b34976b6 | 3731 | return FALSE; |
252b5132 | 3732 | } |
3dab13f6 AM |
3733 | if (!elf_create_pointer_linker_section (abfd, info, |
3734 | htab->sdata, h, rel)) | |
b34976b6 | 3735 | return FALSE; |
252b5132 RH |
3736 | break; |
3737 | ||
70bccea4 | 3738 | /* Indirect .sdata2 relocation. */ |
252b5132 RH |
3739 | case R_PPC_EMB_SDA2I16: |
3740 | if (info->shared) | |
3741 | { | |
7619e7c7 | 3742 | bad_shared_reloc (abfd, r_type); |
b34976b6 | 3743 | return FALSE; |
252b5132 | 3744 | } |
3dab13f6 AM |
3745 | if (!elf_create_pointer_linker_section (abfd, info, |
3746 | htab->sdata2, h, rel)) | |
b34976b6 | 3747 | return FALSE; |
252b5132 RH |
3748 | break; |
3749 | ||
3750 | case R_PPC_SDAREL16: | |
3751 | case R_PPC_EMB_SDA2REL: | |
3752 | case R_PPC_EMB_SDA21: | |
7619e7c7 AM |
3753 | case R_PPC_EMB_RELSDA: |
3754 | case R_PPC_EMB_NADDR32: | |
3755 | case R_PPC_EMB_NADDR16: | |
3756 | case R_PPC_EMB_NADDR16_LO: | |
3757 | case R_PPC_EMB_NADDR16_HI: | |
3758 | case R_PPC_EMB_NADDR16_HA: | |
252b5132 RH |
3759 | if (info->shared) |
3760 | { | |
7619e7c7 | 3761 | bad_shared_reloc (abfd, r_type); |
b34976b6 | 3762 | return FALSE; |
252b5132 RH |
3763 | } |
3764 | break; | |
3765 | ||
3766 | case R_PPC_PLT32: | |
3767 | case R_PPC_PLTREL24: | |
7619e7c7 | 3768 | case R_PPC_PLTREL32: |
252b5132 RH |
3769 | case R_PPC_PLT16_LO: |
3770 | case R_PPC_PLT16_HI: | |
3771 | case R_PPC_PLT16_HA: | |
3772 | #ifdef DEBUG | |
3773 | fprintf (stderr, "Reloc requires a PLT entry\n"); | |
3774 | #endif | |
3775 | /* This symbol requires a procedure linkage table entry. We | |
70bccea4 AM |
3776 | actually build the entry in finish_dynamic_symbol, |
3777 | because this might be a case of linking PIC code without | |
3778 | linking in any dynamic objects, in which case we don't | |
3779 | need to generate a procedure linkage table after all. */ | |
252b5132 RH |
3780 | |
3781 | if (h == NULL) | |
3782 | { | |
3783 | /* It does not make sense to have a procedure linkage | |
70bccea4 | 3784 | table entry for a local symbol. */ |
d85f2c7d AM |
3785 | (*_bfd_error_handler) (_("%s(%s+0x%lx): %s reloc against " |
3786 | "local symbol"), | |
3787 | bfd_archive_filename (abfd), | |
3788 | sec->name, | |
3789 | (long) rel->r_offset, | |
3790 | ppc_elf_howto_table[r_type]->name); | |
252b5132 | 3791 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 3792 | return FALSE; |
252b5132 RH |
3793 | } |
3794 | ||
51b64d56 AM |
3795 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
3796 | h->plt.refcount++; | |
252b5132 RH |
3797 | break; |
3798 | ||
3799 | /* The following relocations don't need to propagate the | |
3800 | relocation if linking a shared object since they are | |
3801 | section relative. */ | |
3802 | case R_PPC_SECTOFF: | |
3803 | case R_PPC_SECTOFF_LO: | |
3804 | case R_PPC_SECTOFF_HI: | |
3805 | case R_PPC_SECTOFF_HA: | |
7619e7c7 AM |
3806 | case R_PPC_DTPREL16: |
3807 | case R_PPC_DTPREL16_LO: | |
3808 | case R_PPC_DTPREL16_HI: | |
3809 | case R_PPC_DTPREL16_HA: | |
3810 | case R_PPC_TOC16: | |
3811 | break; | |
3812 | ||
3813 | /* This are just markers. */ | |
3814 | case R_PPC_TLS: | |
3815 | case R_PPC_EMB_MRKREF: | |
3816 | case R_PPC_NONE: | |
3817 | case R_PPC_max: | |
3818 | break; | |
3819 | ||
3820 | /* These should only appear in dynamic objects. */ | |
3821 | case R_PPC_COPY: | |
3822 | case R_PPC_GLOB_DAT: | |
3823 | case R_PPC_JMP_SLOT: | |
3824 | case R_PPC_RELATIVE: | |
3825 | break; | |
3826 | ||
3827 | /* These aren't handled yet. We'll report an error later. */ | |
3828 | case R_PPC_ADDR30: | |
3829 | case R_PPC_EMB_RELSEC16: | |
3830 | case R_PPC_EMB_RELST_LO: | |
3831 | case R_PPC_EMB_RELST_HI: | |
3832 | case R_PPC_EMB_RELST_HA: | |
3833 | case R_PPC_EMB_BIT_FLD: | |
252b5132 RH |
3834 | break; |
3835 | ||
ae9a127f | 3836 | /* This refers only to functions defined in the shared library. */ |
252b5132 RH |
3837 | case R_PPC_LOCAL24PC: |
3838 | break; | |
3839 | ||
3840 | /* This relocation describes the C++ object vtable hierarchy. | |
3841 | Reconstruct it for later use during GC. */ | |
3842 | case R_PPC_GNU_VTINHERIT: | |
3843 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
b34976b6 | 3844 | return FALSE; |
252b5132 RH |
3845 | break; |
3846 | ||
3847 | /* This relocation describes which C++ vtable entries are actually | |
3848 | used. Record for later use during GC. */ | |
3849 | case R_PPC_GNU_VTENTRY: | |
3850 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
b34976b6 | 3851 | return FALSE; |
252b5132 RH |
3852 | break; |
3853 | ||
7619e7c7 AM |
3854 | /* We shouldn't really be seeing these. */ |
3855 | case R_PPC_TPREL32: | |
3856 | if (info->shared) | |
3857 | info->flags |= DF_STATIC_TLS; | |
3858 | goto dodyn; | |
3859 | ||
3860 | /* Nor these. */ | |
3861 | case R_PPC_DTPMOD32: | |
3862 | case R_PPC_DTPREL32: | |
3863 | goto dodyn; | |
3864 | ||
3865 | case R_PPC_TPREL16: | |
3866 | case R_PPC_TPREL16_LO: | |
3867 | case R_PPC_TPREL16_HI: | |
3868 | case R_PPC_TPREL16_HA: | |
3869 | if (info->shared) | |
3870 | info->flags |= DF_STATIC_TLS; | |
3871 | goto dodyn; | |
3872 | ||
252b5132 RH |
3873 | /* When creating a shared object, we must copy these |
3874 | relocs into the output file. We create a reloc | |
3875 | section in dynobj and make room for the reloc. */ | |
3876 | case R_PPC_REL24: | |
3877 | case R_PPC_REL14: | |
3878 | case R_PPC_REL14_BRTAKEN: | |
3879 | case R_PPC_REL14_BRNTAKEN: | |
3880 | case R_PPC_REL32: | |
3881 | if (h == NULL | |
2b98e6c0 | 3882 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) |
252b5132 RH |
3883 | break; |
3884 | /* fall through */ | |
3885 | ||
7619e7c7 AM |
3886 | case R_PPC_ADDR32: |
3887 | case R_PPC_ADDR24: | |
3888 | case R_PPC_ADDR16: | |
3889 | case R_PPC_ADDR16_LO: | |
3890 | case R_PPC_ADDR16_HI: | |
3891 | case R_PPC_ADDR16_HA: | |
3892 | case R_PPC_ADDR14: | |
3893 | case R_PPC_ADDR14_BRTAKEN: | |
3894 | case R_PPC_ADDR14_BRNTAKEN: | |
3895 | case R_PPC_UADDR32: | |
3896 | case R_PPC_UADDR16: | |
3897 | if (h != NULL && !info->shared) | |
3898 | { | |
3899 | /* We may need a plt entry if the symbol turns out to be | |
3900 | a function defined in a dynamic object. */ | |
3901 | h->plt.refcount++; | |
3902 | ||
3903 | /* We may need a copy reloc too. */ | |
3904 | h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; | |
3905 | } | |
ee05f2fe | 3906 | |
7619e7c7 | 3907 | dodyn: |
ee05f2fe AM |
3908 | /* If we are creating a shared library, and this is a reloc |
3909 | against a global symbol, or a non PC relative reloc | |
3910 | against a local symbol, then we need to copy the reloc | |
3911 | into the shared library. However, if we are linking with | |
3912 | -Bsymbolic, we do not need to copy a reloc against a | |
3913 | global symbol which is defined in an object we are | |
3914 | including in the link (i.e., DEF_REGULAR is set). At | |
3915 | this point we have not seen all the input files, so it is | |
3916 | possible that DEF_REGULAR is not set now but will be set | |
3917 | later (it is never cleared). In case of a weak definition, | |
3918 | DEF_REGULAR may be cleared later by a strong definition in | |
3919 | a shared library. We account for that possibility below by | |
3920 | storing information in the dyn_relocs field of the hash | |
3921 | table entry. A similar situation occurs when creating | |
3922 | shared libraries and symbol visibility changes render the | |
3923 | symbol local. | |
3924 | ||
3925 | If on the other hand, we are creating an executable, we | |
3926 | may need to keep relocations for symbols satisfied by a | |
3927 | dynamic library if we manage to avoid copy relocs for the | |
3928 | symbol. */ | |
3929 | if ((info->shared | |
3930 | && (MUST_BE_DYN_RELOC (r_type) | |
3931 | || (h != NULL | |
3932 | && (! info->symbolic | |
3933 | || h->root.type == bfd_link_hash_defweak | |
3934 | || (h->elf_link_hash_flags | |
3935 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
3936 | || (ELIMINATE_COPY_RELOCS | |
3937 | && !info->shared | |
3938 | && (sec->flags & SEC_ALLOC) != 0 | |
3939 | && h != NULL | |
3940 | && (h->root.type == bfd_link_hash_defweak | |
3941 | || (h->elf_link_hash_flags | |
3942 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
252b5132 | 3943 | { |
7fce784e AS |
3944 | struct ppc_elf_dyn_relocs *p; |
3945 | struct ppc_elf_dyn_relocs **head; | |
3946 | ||
252b5132 | 3947 | #ifdef DEBUG |
55fd94b0 AM |
3948 | fprintf (stderr, |
3949 | "ppc_elf_check_relocs needs to " | |
3950 | "create relocation for %s\n", | |
70bccea4 AM |
3951 | (h && h->root.root.string |
3952 | ? h->root.root.string : "<unknown>")); | |
252b5132 RH |
3953 | #endif |
3954 | if (sreloc == NULL) | |
3955 | { | |
3956 | const char *name; | |
3957 | ||
3958 | name = (bfd_elf_string_from_elf_section | |
3959 | (abfd, | |
3960 | elf_elfheader (abfd)->e_shstrndx, | |
3961 | elf_section_data (sec)->rel_hdr.sh_name)); | |
3962 | if (name == NULL) | |
b34976b6 | 3963 | return FALSE; |
252b5132 RH |
3964 | |
3965 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
3966 | && strcmp (bfd_get_section_name (abfd, sec), | |
3967 | name + 5) == 0); | |
3968 | ||
7619e7c7 | 3969 | sreloc = bfd_get_section_by_name (htab->elf.dynobj, name); |
252b5132 RH |
3970 | if (sreloc == NULL) |
3971 | { | |
3972 | flagword flags; | |
3973 | ||
7619e7c7 | 3974 | sreloc = bfd_make_section (htab->elf.dynobj, name); |
252b5132 RH |
3975 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
3976 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3977 | if ((sec->flags & SEC_ALLOC) != 0) | |
3978 | flags |= SEC_ALLOC | SEC_LOAD; | |
3979 | if (sreloc == NULL | |
7619e7c7 AM |
3980 | || ! bfd_set_section_flags (htab->elf.dynobj, |
3981 | sreloc, flags) | |
3982 | || ! bfd_set_section_alignment (htab->elf.dynobj, | |
3983 | sreloc, 2)) | |
b34976b6 | 3984 | return FALSE; |
252b5132 | 3985 | } |
7fce784e AS |
3986 | elf_section_data (sec)->sreloc = sreloc; |
3987 | } | |
3988 | ||
3989 | /* If this is a global symbol, we count the number of | |
3990 | relocations we need for this symbol. */ | |
3991 | if (h != NULL) | |
3992 | { | |
3993 | head = &ppc_elf_hash_entry (h)->dyn_relocs; | |
252b5132 | 3994 | } |
7fce784e AS |
3995 | else |
3996 | { | |
3997 | /* Track dynamic relocs needed for local syms too. | |
3998 | We really need local syms available to do this | |
3999 | easily. Oh well. */ | |
4000 | ||
4001 | asection *s; | |
ee05f2fe AM |
4002 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, |
4003 | sec, r_symndx); | |
7fce784e AS |
4004 | if (s == NULL) |
4005 | return FALSE; | |
252b5132 | 4006 | |
7fce784e AS |
4007 | head = ((struct ppc_elf_dyn_relocs **) |
4008 | &elf_section_data (s)->local_dynrel); | |
4009 | } | |
252b5132 | 4010 | |
7fce784e AS |
4011 | p = *head; |
4012 | if (p == NULL || p->sec != sec) | |
4013 | { | |
55fd94b0 | 4014 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); |
7fce784e AS |
4015 | if (p == NULL) |
4016 | return FALSE; | |
4017 | p->next = *head; | |
4018 | *head = p; | |
4019 | p->sec = sec; | |
4020 | p->count = 0; | |
ee05f2fe | 4021 | p->pc_count = 0; |
7fce784e AS |
4022 | } |
4023 | ||
ee05f2fe AM |
4024 | p->count += 1; |
4025 | if (!MUST_BE_DYN_RELOC (r_type)) | |
4026 | p->pc_count += 1; | |
252b5132 RH |
4027 | } |
4028 | ||
4029 | break; | |
4030 | } | |
4031 | } | |
4032 | ||
b34976b6 | 4033 | return TRUE; |
252b5132 RH |
4034 | } |
4035 | ||
4036 | /* Return the section that should be marked against GC for a given | |
4037 | relocation. */ | |
4038 | ||
4039 | static asection * | |
55fd94b0 AM |
4040 | ppc_elf_gc_mark_hook (asection *sec, |
4041 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
4042 | Elf_Internal_Rela *rel, | |
4043 | struct elf_link_hash_entry *h, | |
4044 | Elf_Internal_Sym *sym) | |
252b5132 RH |
4045 | { |
4046 | if (h != NULL) | |
4047 | { | |
4048 | switch (ELF32_R_TYPE (rel->r_info)) | |
4049 | { | |
4050 | case R_PPC_GNU_VTINHERIT: | |
4051 | case R_PPC_GNU_VTENTRY: | |
4052 | break; | |
4053 | ||
4054 | default: | |
4055 | switch (h->root.type) | |
4056 | { | |
4057 | case bfd_link_hash_defined: | |
4058 | case bfd_link_hash_defweak: | |
4059 | return h->root.u.def.section; | |
4060 | ||
4061 | case bfd_link_hash_common: | |
4062 | return h->root.u.c.p->section; | |
4063 | ||
4064 | default: | |
4065 | break; | |
4066 | } | |
4067 | } | |
4068 | } | |
4069 | else | |
1e2f5b6e | 4070 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
252b5132 RH |
4071 | |
4072 | return NULL; | |
4073 | } | |
4074 | ||
7619e7c7 AM |
4075 | /* Update the got, plt and dynamic reloc reference counts for the |
4076 | section being removed. */ | |
252b5132 | 4077 | |
b34976b6 | 4078 | static bfd_boolean |
55fd94b0 AM |
4079 | ppc_elf_gc_sweep_hook (bfd *abfd, |
4080 | struct bfd_link_info *info, | |
4081 | asection *sec, | |
4082 | const Elf_Internal_Rela *relocs) | |
252b5132 | 4083 | { |
7619e7c7 | 4084 | struct ppc_elf_link_hash_table *htab; |
252b5132 RH |
4085 | Elf_Internal_Shdr *symtab_hdr; |
4086 | struct elf_link_hash_entry **sym_hashes; | |
4087 | bfd_signed_vma *local_got_refcounts; | |
4088 | const Elf_Internal_Rela *rel, *relend; | |
252b5132 | 4089 | |
7fce784e AS |
4090 | elf_section_data (sec)->local_dynrel = NULL; |
4091 | ||
7619e7c7 | 4092 | htab = ppc_elf_hash_table (info); |
252b5132 RH |
4093 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
4094 | sym_hashes = elf_sym_hashes (abfd); | |
4095 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
4096 | ||
4097 | relend = relocs + sec->reloc_count; | |
4098 | for (rel = relocs; rel < relend; rel++) | |
7619e7c7 AM |
4099 | { |
4100 | unsigned long r_symndx; | |
4101 | enum elf_ppc_reloc_type r_type; | |
4102 | struct elf_link_hash_entry *h = NULL; | |
252b5132 | 4103 | |
7619e7c7 AM |
4104 | r_symndx = ELF32_R_SYM (rel->r_info); |
4105 | if (r_symndx >= symtab_hdr->sh_info) | |
4106 | { | |
4107 | struct ppc_elf_dyn_relocs **pp, *p; | |
4108 | struct ppc_elf_link_hash_entry *eh; | |
4109 | ||
4110 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4111 | eh = (struct ppc_elf_link_hash_entry *) h; | |
4112 | ||
4113 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
4114 | if (p->sec == sec) | |
4115 | { | |
4116 | /* Everything must go for SEC. */ | |
4117 | *pp = p->next; | |
4118 | break; | |
4119 | } | |
4120 | } | |
4121 | ||
55fd94b0 | 4122 | r_type = ELF32_R_TYPE (rel->r_info); |
7619e7c7 AM |
4123 | switch (r_type) |
4124 | { | |
4125 | case R_PPC_GOT_TLSLD16: | |
4126 | case R_PPC_GOT_TLSLD16_LO: | |
4127 | case R_PPC_GOT_TLSLD16_HI: | |
4128 | case R_PPC_GOT_TLSLD16_HA: | |
4129 | htab->tlsld_got.refcount -= 1; | |
4130 | /* Fall thru */ | |
4131 | ||
4132 | case R_PPC_GOT_TLSGD16: | |
4133 | case R_PPC_GOT_TLSGD16_LO: | |
4134 | case R_PPC_GOT_TLSGD16_HI: | |
4135 | case R_PPC_GOT_TLSGD16_HA: | |
4136 | case R_PPC_GOT_TPREL16: | |
4137 | case R_PPC_GOT_TPREL16_LO: | |
4138 | case R_PPC_GOT_TPREL16_HI: | |
4139 | case R_PPC_GOT_TPREL16_HA: | |
4140 | case R_PPC_GOT_DTPREL16: | |
4141 | case R_PPC_GOT_DTPREL16_LO: | |
4142 | case R_PPC_GOT_DTPREL16_HI: | |
4143 | case R_PPC_GOT_DTPREL16_HA: | |
4144 | case R_PPC_GOT16: | |
4145 | case R_PPC_GOT16_LO: | |
4146 | case R_PPC_GOT16_HI: | |
4147 | case R_PPC_GOT16_HA: | |
4148 | if (h != NULL) | |
4149 | { | |
4150 | if (h->got.refcount > 0) | |
4151 | h->got.refcount--; | |
4152 | } | |
4153 | else if (local_got_refcounts != NULL) | |
4154 | { | |
4155 | if (local_got_refcounts[r_symndx] > 0) | |
4156 | local_got_refcounts[r_symndx]--; | |
4157 | } | |
4158 | break; | |
4159 | ||
4160 | case R_PPC_REL24: | |
4161 | case R_PPC_REL14: | |
4162 | case R_PPC_REL14_BRTAKEN: | |
4163 | case R_PPC_REL14_BRNTAKEN: | |
4164 | case R_PPC_REL32: | |
4165 | if (h == NULL | |
2b98e6c0 | 4166 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) |
7619e7c7 AM |
4167 | break; |
4168 | /* Fall thru */ | |
4169 | ||
4170 | case R_PPC_ADDR32: | |
4171 | case R_PPC_ADDR24: | |
4172 | case R_PPC_ADDR16: | |
4173 | case R_PPC_ADDR16_LO: | |
4174 | case R_PPC_ADDR16_HI: | |
4175 | case R_PPC_ADDR16_HA: | |
4176 | case R_PPC_ADDR14: | |
4177 | case R_PPC_ADDR14_BRTAKEN: | |
4178 | case R_PPC_ADDR14_BRNTAKEN: | |
4179 | case R_PPC_UADDR32: | |
4180 | case R_PPC_UADDR16: | |
4181 | case R_PPC_PLT32: | |
4182 | case R_PPC_PLTREL24: | |
4183 | case R_PPC_PLT16_LO: | |
4184 | case R_PPC_PLT16_HI: | |
4185 | case R_PPC_PLT16_HA: | |
4186 | if (h != NULL) | |
4187 | { | |
4188 | if (h->plt.refcount > 0) | |
4189 | h->plt.refcount--; | |
4190 | } | |
4191 | break; | |
4192 | ||
4193 | default: | |
4194 | break; | |
4195 | } | |
4196 | } | |
4197 | return TRUE; | |
4198 | } | |
4199 | ||
e1918d23 | 4200 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
7619e7c7 | 4201 | |
e1918d23 | 4202 | asection * |
55fd94b0 | 4203 | ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info) |
7619e7c7 | 4204 | { |
7619e7c7 AM |
4205 | struct ppc_elf_link_hash_table *htab; |
4206 | ||
4207 | htab = ppc_elf_hash_table (info); | |
4208 | htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", | |
4209 | FALSE, FALSE, TRUE); | |
4210 | ||
e1918d23 | 4211 | return _bfd_elf_tls_setup (obfd, info); |
7619e7c7 AM |
4212 | } |
4213 | ||
4214 | /* Run through all the TLS relocs looking for optimization | |
4215 | opportunities. */ | |
4216 | ||
4217 | bfd_boolean | |
55fd94b0 AM |
4218 | ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, |
4219 | struct bfd_link_info *info) | |
7619e7c7 AM |
4220 | { |
4221 | bfd *ibfd; | |
4222 | asection *sec; | |
4223 | struct ppc_elf_link_hash_table *htab; | |
4224 | ||
1049f94e | 4225 | if (info->relocatable || info->shared) |
7619e7c7 AM |
4226 | return TRUE; |
4227 | ||
4228 | htab = ppc_elf_hash_table (info); | |
4229 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
4230 | { | |
4231 | Elf_Internal_Sym *locsyms = NULL; | |
4232 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
4233 | ||
4234 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
4235 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
7fce784e | 4236 | { |
7619e7c7 AM |
4237 | Elf_Internal_Rela *relstart, *rel, *relend; |
4238 | int expecting_tls_get_addr; | |
4239 | ||
4240 | /* Read the relocations. */ | |
55fd94b0 | 4241 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
45d6a902 | 4242 | info->keep_memory); |
7619e7c7 AM |
4243 | if (relstart == NULL) |
4244 | return FALSE; | |
4245 | ||
4246 | expecting_tls_get_addr = 0; | |
4247 | relend = relstart + sec->reloc_count; | |
4248 | for (rel = relstart; rel < relend; rel++) | |
4249 | { | |
4250 | enum elf_ppc_reloc_type r_type; | |
4251 | unsigned long r_symndx; | |
4252 | struct elf_link_hash_entry *h = NULL; | |
4253 | char *tls_mask; | |
4254 | char tls_set, tls_clear; | |
4255 | bfd_boolean is_local; | |
4256 | ||
4257 | r_symndx = ELF32_R_SYM (rel->r_info); | |
4258 | if (r_symndx >= symtab_hdr->sh_info) | |
4259 | { | |
4260 | struct elf_link_hash_entry **sym_hashes; | |
7fce784e | 4261 | |
7619e7c7 AM |
4262 | sym_hashes = elf_sym_hashes (ibfd); |
4263 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4264 | while (h->root.type == bfd_link_hash_indirect | |
4265 | || h->root.type == bfd_link_hash_warning) | |
4266 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4267 | } | |
7fce784e | 4268 | |
7619e7c7 AM |
4269 | is_local = FALSE; |
4270 | if (h == NULL | |
4271 | || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)) | |
4272 | is_local = TRUE; | |
4273 | ||
55fd94b0 | 4274 | r_type = ELF32_R_TYPE (rel->r_info); |
7619e7c7 AM |
4275 | switch (r_type) |
4276 | { | |
4277 | case R_PPC_GOT_TLSLD16: | |
4278 | case R_PPC_GOT_TLSLD16_LO: | |
4279 | case R_PPC_GOT_TLSLD16_HI: | |
4280 | case R_PPC_GOT_TLSLD16_HA: | |
4281 | /* These relocs should never be against a symbol | |
4282 | defined in a shared lib. Leave them alone if | |
4283 | that turns out to be the case. */ | |
4284 | expecting_tls_get_addr = 0; | |
4285 | htab->tlsld_got.refcount -= 1; | |
4286 | if (!is_local) | |
4287 | continue; | |
4288 | ||
4289 | /* LD -> LE */ | |
4290 | tls_set = 0; | |
4291 | tls_clear = TLS_LD; | |
4292 | expecting_tls_get_addr = 1; | |
4293 | break; | |
4294 | ||
4295 | case R_PPC_GOT_TLSGD16: | |
4296 | case R_PPC_GOT_TLSGD16_LO: | |
4297 | case R_PPC_GOT_TLSGD16_HI: | |
4298 | case R_PPC_GOT_TLSGD16_HA: | |
4299 | if (is_local) | |
4300 | /* GD -> LE */ | |
4301 | tls_set = 0; | |
4302 | else | |
4303 | /* GD -> IE */ | |
4304 | tls_set = TLS_TLS | TLS_TPRELGD; | |
4305 | tls_clear = TLS_GD; | |
4306 | expecting_tls_get_addr = 1; | |
4307 | break; | |
4308 | ||
4309 | case R_PPC_GOT_TPREL16: | |
4310 | case R_PPC_GOT_TPREL16_LO: | |
4311 | case R_PPC_GOT_TPREL16_HI: | |
4312 | case R_PPC_GOT_TPREL16_HA: | |
4313 | expecting_tls_get_addr = 0; | |
4314 | if (is_local) | |
4315 | { | |
4316 | /* IE -> LE */ | |
4317 | tls_set = 0; | |
4318 | tls_clear = TLS_TPREL; | |
4319 | break; | |
4320 | } | |
4321 | else | |
4322 | continue; | |
4323 | ||
4324 | case R_PPC_REL14: | |
4325 | case R_PPC_REL14_BRTAKEN: | |
4326 | case R_PPC_REL14_BRNTAKEN: | |
4327 | case R_PPC_REL24: | |
4328 | if (expecting_tls_get_addr | |
4329 | && h != NULL | |
4330 | && h == htab->tls_get_addr) | |
4331 | { | |
4332 | if (h->plt.refcount > 0) | |
4333 | h->plt.refcount -= 1; | |
4334 | } | |
4335 | expecting_tls_get_addr = 0; | |
4336 | continue; | |
4337 | ||
4338 | default: | |
4339 | expecting_tls_get_addr = 0; | |
4340 | continue; | |
4341 | } | |
4342 | ||
4343 | if (h != NULL) | |
4344 | { | |
4345 | if (tls_set == 0) | |
4346 | { | |
4347 | /* We managed to get rid of a got entry. */ | |
4348 | if (h->got.refcount > 0) | |
4349 | h->got.refcount -= 1; | |
4350 | } | |
4351 | tls_mask = &ppc_elf_hash_entry (h)->tls_mask; | |
4352 | } | |
4353 | else | |
4354 | { | |
4355 | Elf_Internal_Sym *sym; | |
4356 | bfd_signed_vma *lgot_refs; | |
4357 | char *lgot_masks; | |
4358 | ||
4359 | if (locsyms == NULL) | |
4360 | { | |
4361 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
4362 | if (locsyms == NULL) | |
4363 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
4364 | symtab_hdr->sh_info, | |
4365 | 0, NULL, NULL, NULL); | |
4366 | if (locsyms == NULL) | |
4367 | { | |
4368 | if (elf_section_data (sec)->relocs != relstart) | |
4369 | free (relstart); | |
4370 | return FALSE; | |
4371 | } | |
4372 | } | |
4373 | sym = locsyms + r_symndx; | |
4374 | lgot_refs = elf_local_got_refcounts (ibfd); | |
4375 | if (lgot_refs == NULL) | |
4376 | abort (); | |
4377 | if (tls_set == 0) | |
4378 | { | |
4379 | /* We managed to get rid of a got entry. */ | |
4380 | if (lgot_refs[r_symndx] > 0) | |
4381 | lgot_refs[r_symndx] -= 1; | |
4382 | } | |
4383 | lgot_masks = (char *) (lgot_refs + symtab_hdr->sh_info); | |
4384 | tls_mask = &lgot_masks[r_symndx]; | |
4385 | } | |
4386 | ||
4387 | *tls_mask |= tls_set; | |
4388 | *tls_mask &= ~tls_clear; | |
4389 | } | |
4390 | ||
4391 | if (elf_section_data (sec)->relocs != relstart) | |
4392 | free (relstart); | |
7fce784e | 4393 | } |
252b5132 | 4394 | |
7619e7c7 AM |
4395 | if (locsyms != NULL |
4396 | && (symtab_hdr->contents != (unsigned char *) locsyms)) | |
4397 | { | |
4398 | if (!info->keep_memory) | |
4399 | free (locsyms); | |
4400 | else | |
4401 | symtab_hdr->contents = (unsigned char *) locsyms; | |
4402 | } | |
4403 | } | |
b34976b6 | 4404 | return TRUE; |
252b5132 RH |
4405 | } |
4406 | \f | |
4407 | /* Hook called by the linker routine which adds symbols from an object | |
4408 | file. We use it to put .comm items in .sbss, and not .bss. */ | |
4409 | ||
b34976b6 | 4410 | static bfd_boolean |
55fd94b0 AM |
4411 | ppc_elf_add_symbol_hook (bfd *abfd, |
4412 | struct bfd_link_info *info, | |
4413 | const Elf_Internal_Sym *sym, | |
4414 | const char **namep ATTRIBUTE_UNUSED, | |
4415 | flagword *flagsp ATTRIBUTE_UNUSED, | |
4416 | asection **secp, | |
4417 | bfd_vma *valp) | |
252b5132 RH |
4418 | { |
4419 | if (sym->st_shndx == SHN_COMMON | |
1049f94e | 4420 | && !info->relocatable |
27242387 | 4421 | && sym->st_size <= elf_gp_size (abfd) |
58111eb7 AM |
4422 | && (info->hash->creator == abfd->xvec |
4423 | || info->hash->creator == abfd->xvec->alternative_target)) | |
252b5132 RH |
4424 | { |
4425 | /* Common symbols less than or equal to -G nn bytes are automatically | |
58111eb7 AM |
4426 | put into .sbss. */ |
4427 | struct ppc_elf_link_hash_table *htab; | |
252b5132 | 4428 | |
58111eb7 AM |
4429 | htab = ppc_elf_hash_table (info); |
4430 | if (htab->sbss == NULL) | |
252b5132 | 4431 | { |
58111eb7 | 4432 | flagword flags = SEC_IS_COMMON; |
dc810e39 | 4433 | |
58111eb7 AM |
4434 | htab->sbss = bfd_make_section_anyway (abfd, ".sbss"); |
4435 | if (htab->sbss == NULL | |
4436 | || ! bfd_set_section_flags (abfd, htab->sbss, flags)) | |
b34976b6 | 4437 | return FALSE; |
252b5132 RH |
4438 | } |
4439 | ||
58111eb7 | 4440 | *secp = htab->sbss; |
252b5132 RH |
4441 | *valp = sym->st_size; |
4442 | } | |
4443 | ||
b34976b6 | 4444 | return TRUE; |
252b5132 | 4445 | } |
252b5132 RH |
4446 | \f |
4447 | /* Finish up dynamic symbol handling. We set the contents of various | |
4448 | dynamic sections here. */ | |
4449 | ||
b34976b6 | 4450 | static bfd_boolean |
55fd94b0 AM |
4451 | ppc_elf_finish_dynamic_symbol (bfd *output_bfd, |
4452 | struct bfd_link_info *info, | |
4453 | struct elf_link_hash_entry *h, | |
4454 | Elf_Internal_Sym *sym) | |
252b5132 | 4455 | { |
7619e7c7 | 4456 | struct ppc_elf_link_hash_table *htab; |
252b5132 RH |
4457 | |
4458 | #ifdef DEBUG | |
4459 | fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s", | |
4460 | h->root.root.string); | |
4461 | #endif | |
4462 | ||
7619e7c7 AM |
4463 | htab = ppc_elf_hash_table (info); |
4464 | BFD_ASSERT (htab->elf.dynobj != NULL); | |
252b5132 RH |
4465 | |
4466 | if (h->plt.offset != (bfd_vma) -1) | |
4467 | { | |
252b5132 | 4468 | Elf_Internal_Rela rela; |
947216bf | 4469 | bfd_byte *loc; |
252b5132 RH |
4470 | bfd_vma reloc_index; |
4471 | ||
4472 | #ifdef DEBUG | |
4473 | fprintf (stderr, ", plt_offset = %d", h->plt.offset); | |
4474 | #endif | |
4475 | ||
4476 | /* This symbol has an entry in the procedure linkage table. Set | |
70bccea4 | 4477 | it up. */ |
252b5132 RH |
4478 | |
4479 | BFD_ASSERT (h->dynindx != -1); | |
7619e7c7 | 4480 | BFD_ASSERT (htab->plt != NULL && htab->relplt != NULL); |
252b5132 RH |
4481 | |
4482 | /* We don't need to fill in the .plt. The ppc dynamic linker | |
4483 | will fill it in. */ | |
4484 | ||
4485 | /* Fill in the entry in the .rela.plt section. */ | |
7619e7c7 AM |
4486 | rela.r_offset = (htab->plt->output_section->vma |
4487 | + htab->plt->output_offset | |
252b5132 RH |
4488 | + h->plt.offset); |
4489 | rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT); | |
4490 | rela.r_addend = 0; | |
4491 | ||
4492 | reloc_index = (h->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_SLOT_SIZE; | |
4493 | if (reloc_index > PLT_NUM_SINGLE_ENTRIES) | |
4494 | reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2; | |
7619e7c7 AM |
4495 | loc = (htab->relplt->contents |
4496 | + reloc_index * sizeof (Elf32_External_Rela)); | |
947216bf | 4497 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
252b5132 RH |
4498 | |
4499 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
4500 | { | |
4501 | /* Mark the symbol as undefined, rather than as defined in | |
4502 | the .plt section. Leave the value alone. */ | |
4503 | sym->st_shndx = SHN_UNDEF; | |
a4b120e1 GK |
4504 | /* If the symbol is weak, we do need to clear the value. |
4505 | Otherwise, the PLT entry would provide a definition for | |
4506 | the symbol even if the symbol wasn't defined anywhere, | |
4507 | and so the symbol would never be NULL. */ | |
c3668558 | 4508 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR_NONWEAK) |
a4b120e1 GK |
4509 | == 0) |
4510 | sym->st_value = 0; | |
252b5132 RH |
4511 | } |
4512 | } | |
4513 | ||
252b5132 RH |
4514 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) |
4515 | { | |
4516 | asection *s; | |
4517 | Elf_Internal_Rela rela; | |
947216bf | 4518 | bfd_byte *loc; |
252b5132 RH |
4519 | |
4520 | /* This symbols needs a copy reloc. Set it up. */ | |
4521 | ||
4522 | #ifdef DEBUG | |
4523 | fprintf (stderr, ", copy"); | |
4524 | #endif | |
4525 | ||
4526 | BFD_ASSERT (h->dynindx != -1); | |
4527 | ||
7619e7c7 AM |
4528 | if (h->size <= elf_gp_size (htab->elf.dynobj)) |
4529 | s = htab->relsbss; | |
252b5132 | 4530 | else |
7619e7c7 | 4531 | s = htab->relbss; |
252b5132 RH |
4532 | BFD_ASSERT (s != NULL); |
4533 | ||
4534 | rela.r_offset = (h->root.u.def.value | |
4535 | + h->root.u.def.section->output_section->vma | |
4536 | + h->root.u.def.section->output_offset); | |
4537 | rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY); | |
4538 | rela.r_addend = 0; | |
947216bf AM |
4539 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); |
4540 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
252b5132 RH |
4541 | } |
4542 | ||
4543 | #ifdef DEBUG | |
4544 | fprintf (stderr, "\n"); | |
4545 | #endif | |
4546 | ||
4547 | /* Mark some specially defined symbols as absolute. */ | |
4548 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
4549 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0 | |
4550 | || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0) | |
4551 | sym->st_shndx = SHN_ABS; | |
4552 | ||
b34976b6 | 4553 | return TRUE; |
252b5132 | 4554 | } |
252b5132 RH |
4555 | \f |
4556 | /* Finish up the dynamic sections. */ | |
4557 | ||
b34976b6 | 4558 | static bfd_boolean |
55fd94b0 AM |
4559 | ppc_elf_finish_dynamic_sections (bfd *output_bfd, |
4560 | struct bfd_link_info *info) | |
252b5132 RH |
4561 | { |
4562 | asection *sdyn; | |
7619e7c7 | 4563 | struct ppc_elf_link_hash_table *htab; |
252b5132 RH |
4564 | |
4565 | #ifdef DEBUG | |
4566 | fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n"); | |
4567 | #endif | |
4568 | ||
7619e7c7 AM |
4569 | htab = ppc_elf_hash_table (info); |
4570 | sdyn = bfd_get_section_by_name (htab->elf.dynobj, ".dynamic"); | |
252b5132 | 4571 | |
7619e7c7 | 4572 | if (htab->elf.dynamic_sections_created) |
252b5132 | 4573 | { |
252b5132 RH |
4574 | Elf32_External_Dyn *dyncon, *dynconend; |
4575 | ||
7619e7c7 | 4576 | BFD_ASSERT (htab->plt != NULL && sdyn != NULL); |
252b5132 RH |
4577 | |
4578 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
4579 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
4580 | for (; dyncon < dynconend; dyncon++) | |
4581 | { | |
4582 | Elf_Internal_Dyn dyn; | |
7619e7c7 | 4583 | asection *s; |
252b5132 | 4584 | |
7619e7c7 | 4585 | bfd_elf32_swap_dyn_in (htab->elf.dynobj, dyncon, &dyn); |
252b5132 RH |
4586 | |
4587 | switch (dyn.d_tag) | |
4588 | { | |
7619e7c7 AM |
4589 | case DT_PLTGOT: |
4590 | s = htab->plt; | |
4591 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
4592 | break; | |
252b5132 | 4593 | |
7619e7c7 AM |
4594 | case DT_PLTRELSZ: |
4595 | dyn.d_un.d_val = htab->relplt->_raw_size; | |
4596 | break; | |
252b5132 | 4597 | |
7619e7c7 AM |
4598 | case DT_JMPREL: |
4599 | s = htab->relplt; | |
4600 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
4601 | break; | |
4602 | ||
4603 | default: | |
4604 | continue; | |
252b5132 | 4605 | } |
7619e7c7 AM |
4606 | |
4607 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
252b5132 RH |
4608 | } |
4609 | } | |
4610 | ||
4611 | /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 so that a function can | |
4612 | easily find the address of the _GLOBAL_OFFSET_TABLE_. */ | |
7619e7c7 | 4613 | if (htab->got) |
252b5132 | 4614 | { |
7619e7c7 | 4615 | unsigned char *contents = htab->got->contents; |
55fd94b0 | 4616 | bfd_put_32 (output_bfd, 0x4e800021 /* blrl */, contents); |
252b5132 RH |
4617 | |
4618 | if (sdyn == NULL) | |
55fd94b0 | 4619 | bfd_put_32 (output_bfd, 0, contents + 4); |
252b5132 RH |
4620 | else |
4621 | bfd_put_32 (output_bfd, | |
4622 | sdyn->output_section->vma + sdyn->output_offset, | |
7619e7c7 | 4623 | contents + 4); |
252b5132 | 4624 | |
7619e7c7 | 4625 | elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4; |
252b5132 RH |
4626 | } |
4627 | ||
b34976b6 | 4628 | return TRUE; |
252b5132 | 4629 | } |
252b5132 RH |
4630 | \f |
4631 | /* The RELOCATE_SECTION function is called by the ELF backend linker | |
4632 | to handle the relocations for a section. | |
4633 | ||
4634 | The relocs are always passed as Rela structures; if the section | |
4635 | actually uses Rel structures, the r_addend field will always be | |
4636 | zero. | |
4637 | ||
4638 | This function is responsible for adjust the section contents as | |
4639 | necessary, and (if using Rela relocs and generating a | |
1049f94e | 4640 | relocatable output file) adjusting the reloc addend as |
252b5132 RH |
4641 | necessary. |
4642 | ||
4643 | This function does not have to worry about setting the reloc | |
4644 | address or the reloc symbol index. | |
4645 | ||
4646 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
4647 | ||
4648 | LOCAL_SECTIONS is an array giving the section in the input file | |
4649 | corresponding to the st_shndx field of each local symbol. | |
4650 | ||
4651 | The global hash table entry for the global symbols can be found | |
4652 | via elf_sym_hashes (input_bfd). | |
4653 | ||
1049f94e | 4654 | When generating relocatable output, this function must handle |
252b5132 RH |
4655 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
4656 | going to be the section symbol corresponding to the output | |
4657 | section, which means that the addend must be adjusted | |
4658 | accordingly. */ | |
4659 | ||
b34976b6 | 4660 | static bfd_boolean |
55fd94b0 AM |
4661 | ppc_elf_relocate_section (bfd *output_bfd, |
4662 | struct bfd_link_info *info, | |
4663 | bfd *input_bfd, | |
4664 | asection *input_section, | |
4665 | bfd_byte *contents, | |
4666 | Elf_Internal_Rela *relocs, | |
4667 | Elf_Internal_Sym *local_syms, | |
4668 | asection **local_sections) | |
252b5132 | 4669 | { |
7619e7c7 AM |
4670 | Elf_Internal_Shdr *symtab_hdr; |
4671 | struct elf_link_hash_entry **sym_hashes; | |
4672 | struct ppc_elf_link_hash_table *htab; | |
4673 | Elf_Internal_Rela *rel; | |
4674 | Elf_Internal_Rela *relend; | |
4675 | Elf_Internal_Rela outrel; | |
4676 | bfd_byte *loc; | |
b34976b6 | 4677 | asection *sreloc = NULL; |
252b5132 | 4678 | bfd_vma *local_got_offsets; |
b34976b6 | 4679 | bfd_boolean ret = TRUE; |
b34976b6 | 4680 | |
252b5132 | 4681 | #ifdef DEBUG |
55fd94b0 AM |
4682 | fprintf (stderr, "ppc_elf_relocate_section called for %s section %s, " |
4683 | "%ld relocations%s\n", | |
8f615d07 | 4684 | bfd_archive_filename (input_bfd), |
252b5132 | 4685 | bfd_section_name(input_bfd, input_section), |
8da6118f | 4686 | (long) input_section->reloc_count, |
1049f94e | 4687 | (info->relocatable) ? " (relocatable)" : ""); |
252b5132 RH |
4688 | #endif |
4689 | ||
1049f94e | 4690 | if (info->relocatable) |
b34976b6 | 4691 | return TRUE; |
b491616a | 4692 | |
e47cd125 | 4693 | /* Initialize howto table if not already done. */ |
8da6118f | 4694 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) |
252b5132 RH |
4695 | ppc_elf_howto_init (); |
4696 | ||
7619e7c7 | 4697 | htab = ppc_elf_hash_table (info); |
252b5132 | 4698 | local_got_offsets = elf_local_got_offsets (input_bfd); |
7619e7c7 AM |
4699 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
4700 | sym_hashes = elf_sym_hashes (input_bfd); | |
4701 | rel = relocs; | |
4702 | relend = relocs + input_section->reloc_count; | |
252b5132 RH |
4703 | for (; rel < relend; rel++) |
4704 | { | |
7619e7c7 AM |
4705 | enum elf_ppc_reloc_type r_type; |
4706 | bfd_vma addend; | |
4707 | bfd_reloc_status_type r; | |
4708 | Elf_Internal_Sym *sym; | |
4709 | asection *sec; | |
4710 | struct elf_link_hash_entry *h; | |
4711 | const char *sym_name; | |
252b5132 RH |
4712 | reloc_howto_type *howto; |
4713 | unsigned long r_symndx; | |
4714 | bfd_vma relocation; | |
7619e7c7 | 4715 | bfd_vma branch_bit, insn, from; |
7619e7c7 AM |
4716 | bfd_boolean unresolved_reloc; |
4717 | bfd_boolean warned; | |
4718 | unsigned int tls_type, tls_mask, tls_gd; | |
4719 | ||
55fd94b0 AM |
4720 | r_type = ELF32_R_TYPE (rel->r_info); |
4721 | sym = NULL; | |
4722 | sec = NULL; | |
4723 | h = NULL; | |
7619e7c7 AM |
4724 | unresolved_reloc = FALSE; |
4725 | warned = FALSE; | |
252b5132 | 4726 | r_symndx = ELF32_R_SYM (rel->r_info); |
560e09e9 | 4727 | |
252b5132 RH |
4728 | if (r_symndx < symtab_hdr->sh_info) |
4729 | { | |
4730 | sym = local_syms + r_symndx; | |
4731 | sec = local_sections[r_symndx]; | |
7619e7c7 | 4732 | sym_name = bfd_elf_local_sym_name (input_bfd, sym); |
252b5132 | 4733 | |
8517fae7 | 4734 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
252b5132 RH |
4735 | } |
4736 | else | |
4737 | { | |
560e09e9 NC |
4738 | RELOC_FOR_GLOBAL_SYMBOL (h, sym_hashes, r_symndx, |
4739 | symtab_hdr, relocation, sec, | |
4740 | unresolved_reloc, info, | |
4741 | warned); | |
4742 | ||
252b5132 | 4743 | sym_name = h->root.root.string; |
7619e7c7 AM |
4744 | } |
4745 | ||
4746 | /* TLS optimizations. Replace instruction sequences and relocs | |
4747 | based on information we collected in tls_optimize. We edit | |
4748 | RELOCS so that --emit-relocs will output something sensible | |
4749 | for the final instruction stream. */ | |
4750 | tls_mask = 0; | |
4751 | tls_gd = 0; | |
4752 | if (IS_PPC_TLS_RELOC (r_type)) | |
4753 | { | |
4754 | if (h != NULL) | |
4755 | tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask; | |
4756 | else if (local_got_offsets != NULL) | |
4757 | { | |
4758 | char *lgot_masks; | |
4759 | lgot_masks = (char *) (local_got_offsets + symtab_hdr->sh_info); | |
4760 | tls_mask = lgot_masks[r_symndx]; | |
4761 | } | |
4762 | } | |
4763 | ||
4764 | /* Ensure reloc mapping code below stays sane. */ | |
4765 | if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3) | |
4766 | || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3) | |
4767 | || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3) | |
4768 | || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3) | |
4769 | || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3) | |
4770 | || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3) | |
4771 | || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3) | |
4772 | || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3)) | |
4773 | abort (); | |
4774 | switch (r_type) | |
4775 | { | |
4776 | default: | |
4777 | break; | |
4778 | ||
4779 | case R_PPC_GOT_TPREL16: | |
4780 | case R_PPC_GOT_TPREL16_LO: | |
4781 | if (tls_mask != 0 | |
4782 | && (tls_mask & TLS_TPREL) == 0) | |
4783 | { | |
4784 | bfd_vma insn; | |
4785 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2); | |
4786 | insn &= 31 << 21; | |
4787 | insn |= 0x3c020000; /* addis 0,2,0 */ | |
4788 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2); | |
4789 | r_type = R_PPC_TPREL16_HA; | |
4790 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
4791 | } | |
4792 | break; | |
4793 | ||
4794 | case R_PPC_TLS: | |
4795 | if (tls_mask != 0 | |
4796 | && (tls_mask & TLS_TPREL) == 0) | |
4797 | { | |
4798 | bfd_vma insn, rtra; | |
4799 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); | |
4800 | if ((insn & ((31 << 26) | (31 << 11))) | |
4801 | == ((31 << 26) | (2 << 11))) | |
4802 | rtra = insn & ((1 << 26) - (1 << 16)); | |
4803 | else if ((insn & ((31 << 26) | (31 << 16))) | |
4804 | == ((31 << 26) | (2 << 16))) | |
4805 | rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5); | |
4806 | else | |
4807 | abort (); | |
4808 | if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1) | |
4809 | /* add -> addi. */ | |
4810 | insn = 14 << 26; | |
4811 | else if ((insn & (31 << 1)) == 23 << 1 | |
4812 | && ((insn & (31 << 6)) < 14 << 6 | |
4813 | || ((insn & (31 << 6)) >= 16 << 6 | |
4814 | && (insn & (31 << 6)) < 24 << 6))) | |
4815 | /* load and store indexed -> dform. */ | |
4816 | insn = (32 | ((insn >> 6) & 31)) << 26; | |
4817 | else if ((insn & (31 << 1)) == 21 << 1 | |
4818 | && (insn & (0x1a << 6)) == 0) | |
4819 | /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */ | |
4820 | insn = (((58 | ((insn >> 6) & 4)) << 26) | |
4821 | | ((insn >> 6) & 1)); | |
4822 | else if ((insn & (31 << 1)) == 21 << 1 | |
4823 | && (insn & ((1 << 11) - (1 << 1))) == 341 << 1) | |
4824 | /* lwax -> lwa. */ | |
4825 | insn = (58 << 26) | 2; | |
4826 | else | |
4827 | abort (); | |
4828 | insn |= rtra; | |
4829 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
4830 | r_type = R_PPC_TPREL16_LO; | |
4831 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
4832 | /* Was PPC_TLS which sits on insn boundary, now | |
4833 | PPC_TPREL16_LO which is at insn+2. */ | |
4834 | rel->r_offset += 2; | |
4835 | } | |
4836 | break; | |
4837 | ||
4838 | case R_PPC_GOT_TLSGD16_HI: | |
4839 | case R_PPC_GOT_TLSGD16_HA: | |
4840 | tls_gd = TLS_TPRELGD; | |
4841 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
4842 | goto tls_gdld_hi; | |
4843 | break; | |
4844 | ||
4845 | case R_PPC_GOT_TLSLD16_HI: | |
4846 | case R_PPC_GOT_TLSLD16_HA: | |
4847 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
4848 | { | |
4849 | tls_gdld_hi: | |
4850 | if ((tls_mask & tls_gd) != 0) | |
4851 | r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3) | |
4852 | + R_PPC_GOT_TPREL16); | |
4853 | else | |
4854 | { | |
4855 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); | |
4856 | rel->r_offset -= 2; | |
4857 | r_type = R_PPC_NONE; | |
4858 | } | |
4859 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
4860 | } | |
4861 | break; | |
4862 | ||
4863 | case R_PPC_GOT_TLSGD16: | |
4864 | case R_PPC_GOT_TLSGD16_LO: | |
4865 | tls_gd = TLS_TPRELGD; | |
4866 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
4867 | goto tls_get_addr_check; | |
4868 | break; | |
4869 | ||
4870 | case R_PPC_GOT_TLSLD16: | |
4871 | case R_PPC_GOT_TLSLD16_LO: | |
4872 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
4873 | { | |
4874 | tls_get_addr_check: | |
4875 | if (rel + 1 < relend) | |
4876 | { | |
4877 | enum elf_ppc_reloc_type r_type2; | |
4878 | unsigned long r_symndx2; | |
4879 | struct elf_link_hash_entry *h2; | |
87d243f1 | 4880 | bfd_vma insn1, insn2; |
7619e7c7 AM |
4881 | bfd_vma offset; |
4882 | ||
4883 | /* The next instruction should be a call to | |
4884 | __tls_get_addr. Peek at the reloc to be sure. */ | |
55fd94b0 | 4885 | r_type2 = ELF32_R_TYPE (rel[1].r_info); |
7619e7c7 AM |
4886 | r_symndx2 = ELF32_R_SYM (rel[1].r_info); |
4887 | if (r_symndx2 < symtab_hdr->sh_info | |
4888 | || (r_type2 != R_PPC_REL14 | |
4889 | && r_type2 != R_PPC_REL14_BRTAKEN | |
4890 | && r_type2 != R_PPC_REL14_BRNTAKEN | |
4891 | && r_type2 != R_PPC_REL24 | |
4892 | && r_type2 != R_PPC_PLTREL24)) | |
4893 | break; | |
4894 | ||
4895 | h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info]; | |
4896 | while (h2->root.type == bfd_link_hash_indirect | |
4897 | || h2->root.type == bfd_link_hash_warning) | |
4898 | h2 = (struct elf_link_hash_entry *) h2->root.u.i.link; | |
4899 | if (h2 == NULL || h2 != htab->tls_get_addr) | |
4900 | break; | |
4901 | ||
4902 | /* OK, it checks out. Replace the call. */ | |
4903 | offset = rel[1].r_offset; | |
4904 | insn1 = bfd_get_32 (output_bfd, | |
4905 | contents + rel->r_offset - 2); | |
7619e7c7 AM |
4906 | if ((tls_mask & tls_gd) != 0) |
4907 | { | |
4908 | /* IE */ | |
4909 | insn1 &= (1 << 26) - 1; | |
4910 | insn1 |= 32 << 26; /* lwz */ | |
4911 | insn2 = 0x7c631214; /* add 3,3,2 */ | |
4912 | rel[1].r_info = ELF32_R_INFO (r_symndx2, R_PPC_NONE); | |
4913 | r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3) | |
4914 | + R_PPC_GOT_TPREL16); | |
4915 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
4916 | } | |
4917 | else | |
4918 | { | |
4919 | /* LE */ | |
4920 | insn1 = 0x3c620000; /* addis 3,2,0 */ | |
4921 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
4922 | if (tls_gd == 0) | |
4923 | { | |
4924 | /* Was an LD reloc. */ | |
4925 | r_symndx = 0; | |
e1918d23 AM |
4926 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
4927 | rel[1].r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; | |
7619e7c7 AM |
4928 | } |
4929 | r_type = R_PPC_TPREL16_HA; | |
4930 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
4931 | rel[1].r_info = ELF32_R_INFO (r_symndx, | |
4932 | R_PPC_TPREL16_LO); | |
4933 | rel[1].r_offset += 2; | |
4934 | } | |
7619e7c7 AM |
4935 | bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2); |
4936 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
7619e7c7 AM |
4937 | if (tls_gd == 0) |
4938 | { | |
4939 | /* We changed the symbol on an LD reloc. Start over | |
70bccea4 | 4940 | in order to get h, sym, sec etc. right. */ |
7619e7c7 AM |
4941 | rel--; |
4942 | continue; | |
4943 | } | |
4944 | } | |
252b5132 | 4945 | } |
7619e7c7 AM |
4946 | break; |
4947 | } | |
4948 | ||
4949 | /* Handle other relocations that tweak non-addend part of insn. */ | |
4950 | branch_bit = 0; | |
4951 | switch (r_type) | |
4952 | { | |
4953 | default: | |
4954 | break; | |
4955 | ||
4956 | /* Branch taken prediction relocations. */ | |
4957 | case R_PPC_ADDR14_BRTAKEN: | |
4958 | case R_PPC_REL14_BRTAKEN: | |
4959 | branch_bit = BRANCH_PREDICT_BIT; | |
4960 | /* Fall thru */ | |
4961 | ||
4962 | /* Branch not taken predicition relocations. */ | |
4963 | case R_PPC_ADDR14_BRNTAKEN: | |
4964 | case R_PPC_REL14_BRNTAKEN: | |
4965 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); | |
4966 | insn &= ~BRANCH_PREDICT_BIT; | |
4967 | insn |= branch_bit; | |
4968 | ||
4969 | from = (rel->r_offset | |
4970 | + input_section->output_offset | |
4971 | + input_section->output_section->vma); | |
4972 | ||
4973 | /* Invert 'y' bit if not the default. */ | |
4974 | if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0) | |
4975 | insn ^= BRANCH_PREDICT_BIT; | |
4976 | ||
4977 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
4978 | break; | |
252b5132 RH |
4979 | } |
4980 | ||
7619e7c7 AM |
4981 | addend = rel->r_addend; |
4982 | tls_type = 0; | |
4983 | howto = NULL; | |
55fd94b0 AM |
4984 | if (r_type < R_PPC_max) |
4985 | howto = ppc_elf_howto_table[r_type]; | |
7619e7c7 | 4986 | switch (r_type) |
252b5132 RH |
4987 | { |
4988 | default: | |
7619e7c7 AM |
4989 | (*_bfd_error_handler) |
4990 | (_("%s: unknown relocation type %d for symbol %s"), | |
4991 | bfd_archive_filename (input_bfd), (int) r_type, sym_name); | |
252b5132 RH |
4992 | |
4993 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 4994 | ret = FALSE; |
252b5132 RH |
4995 | continue; |
4996 | ||
7619e7c7 AM |
4997 | case R_PPC_NONE: |
4998 | case R_PPC_TLS: | |
4999 | case R_PPC_EMB_MRKREF: | |
5000 | case R_PPC_GNU_VTINHERIT: | |
5001 | case R_PPC_GNU_VTENTRY: | |
7595d193 L |
5002 | continue; |
5003 | ||
7619e7c7 AM |
5004 | /* GOT16 relocations. Like an ADDR16 using the symbol's |
5005 | address in the GOT as relocation value instead of the | |
5006 | symbol's value itself. Also, create a GOT entry for the | |
5007 | symbol and put the symbol value there. */ | |
5008 | case R_PPC_GOT_TLSGD16: | |
5009 | case R_PPC_GOT_TLSGD16_LO: | |
5010 | case R_PPC_GOT_TLSGD16_HI: | |
5011 | case R_PPC_GOT_TLSGD16_HA: | |
5012 | tls_type = TLS_TLS | TLS_GD; | |
5013 | goto dogot; | |
5014 | ||
5015 | case R_PPC_GOT_TLSLD16: | |
5016 | case R_PPC_GOT_TLSLD16_LO: | |
5017 | case R_PPC_GOT_TLSLD16_HI: | |
5018 | case R_PPC_GOT_TLSLD16_HA: | |
5019 | tls_type = TLS_TLS | TLS_LD; | |
5020 | goto dogot; | |
5021 | ||
5022 | case R_PPC_GOT_TPREL16: | |
5023 | case R_PPC_GOT_TPREL16_LO: | |
5024 | case R_PPC_GOT_TPREL16_HI: | |
5025 | case R_PPC_GOT_TPREL16_HA: | |
5026 | tls_type = TLS_TLS | TLS_TPREL; | |
5027 | goto dogot; | |
5028 | ||
5029 | case R_PPC_GOT_DTPREL16: | |
5030 | case R_PPC_GOT_DTPREL16_LO: | |
5031 | case R_PPC_GOT_DTPREL16_HI: | |
5032 | case R_PPC_GOT_DTPREL16_HA: | |
5033 | tls_type = TLS_TLS | TLS_DTPREL; | |
5034 | goto dogot; | |
5035 | ||
5036 | case R_PPC_GOT16: | |
5037 | case R_PPC_GOT16_LO: | |
5038 | case R_PPC_GOT16_HI: | |
5039 | case R_PPC_GOT16_HA: | |
5040 | dogot: | |
5041 | { | |
5042 | /* Relocation is to the entry for this symbol in the global | |
5043 | offset table. */ | |
5044 | bfd_vma off; | |
5045 | bfd_vma *offp; | |
5046 | unsigned long indx; | |
5047 | ||
5048 | if (htab->got == NULL) | |
5049 | abort (); | |
5050 | ||
5051 | indx = 0; | |
5052 | if (tls_type == (TLS_TLS | TLS_LD) | |
d881513a | 5053 | && (h == NULL |
7619e7c7 AM |
5054 | || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))) |
5055 | offp = &htab->tlsld_got.offset; | |
5056 | else if (h != NULL) | |
5057 | { | |
5058 | bfd_boolean dyn; | |
5059 | dyn = htab->elf.dynamic_sections_created; | |
ee05f2fe | 5060 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
7619e7c7 AM |
5061 | || (info->shared |
5062 | && SYMBOL_REFERENCES_LOCAL (info, h))) | |
5063 | /* This is actually a static link, or it is a | |
5064 | -Bsymbolic link and the symbol is defined | |
5065 | locally, or the symbol was forced to be local | |
5066 | because of a version file. */ | |
5067 | ; | |
5068 | else | |
5069 | { | |
5070 | indx = h->dynindx; | |
5071 | unresolved_reloc = FALSE; | |
5072 | } | |
5073 | offp = &h->got.offset; | |
5074 | } | |
5075 | else | |
5076 | { | |
5077 | if (local_got_offsets == NULL) | |
5078 | abort (); | |
5079 | offp = &local_got_offsets[r_symndx]; | |
5080 | } | |
5081 | ||
5082 | /* The offset must always be a multiple of 4. We use the | |
5083 | least significant bit to record whether we have already | |
5084 | processed this entry. */ | |
5085 | off = *offp; | |
5086 | if ((off & 1) != 0) | |
5087 | off &= ~1; | |
5088 | else | |
5089 | { | |
70bccea4 AM |
5090 | unsigned int tls_m = (tls_mask |
5091 | & (TLS_LD | TLS_GD | TLS_DTPREL | |
5092 | | TLS_TPREL | TLS_TPRELGD)); | |
5093 | ||
5094 | if (offp == &htab->tlsld_got.offset) | |
5095 | tls_m = TLS_LD; | |
5096 | else if (h == NULL | |
5097 | || !(h->elf_link_hash_flags | |
5098 | & ELF_LINK_HASH_DEF_DYNAMIC)) | |
5099 | tls_m &= ~TLS_LD; | |
5100 | ||
5101 | /* We might have multiple got entries for this sym. | |
5102 | Initialize them all. */ | |
5103 | do | |
7619e7c7 | 5104 | { |
70bccea4 AM |
5105 | int tls_ty = 0; |
5106 | ||
5107 | if ((tls_m & TLS_LD) != 0) | |
7619e7c7 | 5108 | { |
70bccea4 AM |
5109 | tls_ty = TLS_TLS | TLS_LD; |
5110 | tls_m &= ~TLS_LD; | |
5111 | } | |
5112 | else if ((tls_m & TLS_GD) != 0) | |
5113 | { | |
5114 | tls_ty = TLS_TLS | TLS_GD; | |
5115 | tls_m &= ~TLS_GD; | |
5116 | } | |
5117 | else if ((tls_m & TLS_DTPREL) != 0) | |
5118 | { | |
5119 | tls_ty = TLS_TLS | TLS_DTPREL; | |
5120 | tls_m &= ~TLS_DTPREL; | |
5121 | } | |
5122 | else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0) | |
5123 | { | |
5124 | tls_ty = TLS_TLS | TLS_TPREL; | |
5125 | tls_m = 0; | |
7619e7c7 | 5126 | } |
7619e7c7 | 5127 | |
70bccea4 | 5128 | /* Generate relocs for the dynamic linker. */ |
4e795f50 AM |
5129 | if ((info->shared || indx != 0) |
5130 | && (h == NULL | |
5131 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
5132 | || h->root.type != bfd_link_hash_undefweak)) | |
7619e7c7 | 5133 | { |
70bccea4 AM |
5134 | outrel.r_offset = (htab->got->output_section->vma |
5135 | + htab->got->output_offset | |
5136 | + off); | |
e515b051 | 5137 | outrel.r_addend = 0; |
70bccea4 AM |
5138 | if (tls_ty & (TLS_LD | TLS_GD)) |
5139 | { | |
5140 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32); | |
70bccea4 AM |
5141 | if (tls_ty == (TLS_TLS | TLS_GD)) |
5142 | { | |
5143 | loc = htab->relgot->contents; | |
5144 | loc += (htab->relgot->reloc_count++ | |
5145 | * sizeof (Elf32_External_Rela)); | |
5146 | bfd_elf32_swap_reloca_out (output_bfd, | |
5147 | &outrel, loc); | |
e515b051 | 5148 | outrel.r_offset += 4; |
70bccea4 AM |
5149 | outrel.r_info |
5150 | = ELF32_R_INFO (indx, R_PPC_DTPREL32); | |
70bccea4 AM |
5151 | } |
5152 | } | |
5153 | else if (tls_ty == (TLS_TLS | TLS_DTPREL)) | |
5154 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32); | |
5155 | else if (tls_ty == (TLS_TLS | TLS_TPREL)) | |
5156 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32); | |
5157 | else if (indx == 0) | |
5158 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_RELATIVE); | |
5159 | else | |
5160 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT); | |
70bccea4 | 5161 | if (indx == 0) |
e515b051 AM |
5162 | { |
5163 | outrel.r_addend += relocation; | |
5164 | if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
e1918d23 | 5165 | outrel.r_addend -= htab->elf.tls_sec->vma; |
e515b051 | 5166 | } |
70bccea4 AM |
5167 | loc = htab->relgot->contents; |
5168 | loc += (htab->relgot->reloc_count++ | |
5169 | * sizeof (Elf32_External_Rela)); | |
5170 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
7619e7c7 AM |
5171 | } |
5172 | ||
70bccea4 AM |
5173 | /* Init the .got section contents if we're not |
5174 | emitting a reloc. */ | |
5175 | else | |
7619e7c7 | 5176 | { |
70bccea4 AM |
5177 | bfd_vma value = relocation; |
5178 | ||
7b609f53 AM |
5179 | if (tls_ty == (TLS_TLS | TLS_LD)) |
5180 | value = 1; | |
5181 | else if (tls_ty != 0) | |
70bccea4 | 5182 | { |
e1918d23 | 5183 | value -= htab->elf.tls_sec->vma + DTP_OFFSET; |
7b609f53 | 5184 | if (tls_ty == (TLS_TLS | TLS_TPREL)) |
70bccea4 | 5185 | value += DTP_OFFSET - TP_OFFSET; |
70bccea4 | 5186 | |
7b609f53 AM |
5187 | if (tls_ty == (TLS_TLS | TLS_GD)) |
5188 | { | |
5189 | bfd_put_32 (output_bfd, value, | |
5190 | htab->got->contents + off + 4); | |
5191 | value = 1; | |
5192 | } | |
70bccea4 | 5193 | } |
70bccea4 AM |
5194 | bfd_put_32 (output_bfd, value, |
5195 | htab->got->contents + off); | |
7619e7c7 | 5196 | } |
70bccea4 AM |
5197 | |
5198 | off += 4; | |
5199 | if (tls_ty & (TLS_LD | TLS_GD)) | |
5200 | off += 4; | |
7619e7c7 | 5201 | } |
70bccea4 AM |
5202 | while (tls_m != 0); |
5203 | ||
5204 | off = *offp; | |
5205 | *offp = off | 1; | |
7619e7c7 AM |
5206 | } |
5207 | ||
5208 | if (off >= (bfd_vma) -2) | |
5209 | abort (); | |
5210 | ||
70bccea4 AM |
5211 | if ((tls_type & TLS_TLS) != 0) |
5212 | { | |
5213 | if (tls_type != (TLS_TLS | TLS_LD)) | |
5214 | { | |
5215 | if ((tls_mask & TLS_LD) != 0 | |
5216 | && !(h == NULL | |
5217 | || !(h->elf_link_hash_flags | |
5218 | & ELF_LINK_HASH_DEF_DYNAMIC))) | |
5219 | off += 8; | |
5220 | if (tls_type != (TLS_TLS | TLS_GD)) | |
5221 | { | |
5222 | if ((tls_mask & TLS_GD) != 0) | |
5223 | off += 8; | |
5224 | if (tls_type != (TLS_TLS | TLS_DTPREL)) | |
5225 | { | |
5226 | if ((tls_mask & TLS_DTPREL) != 0) | |
5227 | off += 4; | |
5228 | } | |
5229 | } | |
5230 | } | |
5231 | } | |
5232 | ||
7619e7c7 AM |
5233 | relocation = htab->got->output_offset + off - 4; |
5234 | ||
5235 | /* Addends on got relocations don't make much sense. | |
5236 | x+off@got is actually x@got+off, and since the got is | |
5237 | generated by a hash table traversal, the value in the | |
5238 | got at entry m+n bears little relation to the entry m. */ | |
5239 | if (addend != 0) | |
5240 | (*_bfd_error_handler) | |
7b609f53 | 5241 | (_("%s(%s+0x%lx): non-zero addend on %s reloc against `%s'"), |
7619e7c7 AM |
5242 | bfd_archive_filename (input_bfd), |
5243 | bfd_get_section_name (input_bfd, input_section), | |
5244 | (long) rel->r_offset, | |
7b609f53 | 5245 | howto->name, |
7619e7c7 AM |
5246 | sym_name); |
5247 | } | |
70bccea4 | 5248 | break; |
7619e7c7 | 5249 | |
252b5132 | 5250 | /* Relocations that need no special processing. */ |
7619e7c7 | 5251 | case R_PPC_LOCAL24PC: |
252b5132 RH |
5252 | /* It makes no sense to point a local relocation |
5253 | at a symbol not in this object. */ | |
7b609f53 | 5254 | if (unresolved_reloc) |
252b5132 | 5255 | { |
464e1740 ILT |
5256 | if (! (*info->callbacks->undefined_symbol) (info, |
5257 | h->root.root.string, | |
5258 | input_bfd, | |
5259 | input_section, | |
5cc7c785 | 5260 | rel->r_offset, |
b34976b6 AM |
5261 | TRUE)) |
5262 | return FALSE; | |
252b5132 RH |
5263 | continue; |
5264 | } | |
5265 | break; | |
5266 | ||
7619e7c7 AM |
5267 | case R_PPC_DTPREL16: |
5268 | case R_PPC_DTPREL16_LO: | |
5269 | case R_PPC_DTPREL16_HI: | |
5270 | case R_PPC_DTPREL16_HA: | |
e1918d23 | 5271 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; |
7619e7c7 AM |
5272 | break; |
5273 | ||
70bccea4 AM |
5274 | /* Relocations that may need to be propagated if this is a shared |
5275 | object. */ | |
7619e7c7 AM |
5276 | case R_PPC_TPREL16: |
5277 | case R_PPC_TPREL16_LO: | |
5278 | case R_PPC_TPREL16_HI: | |
5279 | case R_PPC_TPREL16_HA: | |
e1918d23 | 5280 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; |
7619e7c7 AM |
5281 | /* The TPREL16 relocs shouldn't really be used in shared |
5282 | libs as they will result in DT_TEXTREL being set, but | |
5283 | support them anyway. */ | |
5284 | goto dodyn; | |
5285 | ||
5286 | case R_PPC_TPREL32: | |
e1918d23 | 5287 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; |
7619e7c7 AM |
5288 | goto dodyn; |
5289 | ||
5290 | case R_PPC_DTPREL32: | |
e1918d23 | 5291 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; |
7619e7c7 AM |
5292 | goto dodyn; |
5293 | ||
e515b051 AM |
5294 | case R_PPC_DTPMOD32: |
5295 | relocation = 1; | |
5296 | addend = 0; | |
5297 | goto dodyn; | |
5298 | ||
7619e7c7 AM |
5299 | case R_PPC_REL24: |
5300 | case R_PPC_REL32: | |
5301 | case R_PPC_REL14: | |
5302 | case R_PPC_REL14_BRTAKEN: | |
5303 | case R_PPC_REL14_BRNTAKEN: | |
252b5132 RH |
5304 | /* If these relocations are not to a named symbol, they can be |
5305 | handled right here, no need to bother the dynamic linker. */ | |
f6c52c13 AM |
5306 | if (SYMBOL_REFERENCES_LOCAL (info, h) |
5307 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
252b5132 | 5308 | break; |
70bccea4 | 5309 | /* fall through */ |
252b5132 | 5310 | |
70bccea4 AM |
5311 | /* Relocations that always need to be propagated if this is a shared |
5312 | object. */ | |
7619e7c7 AM |
5313 | case R_PPC_ADDR32: |
5314 | case R_PPC_ADDR24: | |
5315 | case R_PPC_ADDR16: | |
5316 | case R_PPC_ADDR16_LO: | |
5317 | case R_PPC_ADDR16_HI: | |
5318 | case R_PPC_ADDR16_HA: | |
5319 | case R_PPC_ADDR14: | |
5320 | case R_PPC_ADDR14_BRTAKEN: | |
5321 | case R_PPC_ADDR14_BRNTAKEN: | |
5322 | case R_PPC_UADDR32: | |
5323 | case R_PPC_UADDR16: | |
ee05f2fe AM |
5324 | /* r_symndx will be zero only for relocs against symbols |
5325 | from removed linkonce sections, or sections discarded by | |
5326 | a linker script. */ | |
7619e7c7 | 5327 | dodyn: |
ee05f2fe AM |
5328 | if (r_symndx == 0) |
5329 | break; | |
5330 | /* Fall thru. */ | |
5331 | ||
5332 | if ((info->shared | |
4e795f50 AM |
5333 | && (h == NULL |
5334 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
5335 | || h->root.type != bfd_link_hash_undefweak) | |
ee05f2fe | 5336 | && (MUST_BE_DYN_RELOC (r_type) |
f6c52c13 | 5337 | || !SYMBOL_CALLS_LOCAL (info, h))) |
ee05f2fe AM |
5338 | || (ELIMINATE_COPY_RELOCS |
5339 | && !info->shared | |
5340 | && (input_section->flags & SEC_ALLOC) != 0 | |
5341 | && h != NULL | |
5342 | && h->dynindx != -1 | |
5343 | && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
5344 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
5345 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
252b5132 | 5346 | { |
0bb2d96a | 5347 | int skip; |
252b5132 RH |
5348 | |
5349 | #ifdef DEBUG | |
55fd94b0 AM |
5350 | fprintf (stderr, "ppc_elf_relocate_section needs to " |
5351 | "create relocation for %s\n", | |
70bccea4 AM |
5352 | (h && h->root.root.string |
5353 | ? h->root.root.string : "<unknown>")); | |
252b5132 RH |
5354 | #endif |
5355 | ||
5356 | /* When generating a shared object, these relocations | |
70bccea4 AM |
5357 | are copied into the output file to be resolved at run |
5358 | time. */ | |
252b5132 RH |
5359 | if (sreloc == NULL) |
5360 | { | |
5361 | const char *name; | |
5362 | ||
5363 | name = (bfd_elf_string_from_elf_section | |
5364 | (input_bfd, | |
5365 | elf_elfheader (input_bfd)->e_shstrndx, | |
5366 | elf_section_data (input_section)->rel_hdr.sh_name)); | |
5367 | if (name == NULL) | |
b34976b6 | 5368 | return FALSE; |
252b5132 RH |
5369 | |
5370 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
5371 | && strcmp (bfd_get_section_name (input_bfd, | |
5372 | input_section), | |
5373 | name + 5) == 0); | |
5374 | ||
7619e7c7 | 5375 | sreloc = bfd_get_section_by_name (htab->elf.dynobj, name); |
252b5132 RH |
5376 | BFD_ASSERT (sreloc != NULL); |
5377 | } | |
5378 | ||
0bb2d96a | 5379 | skip = 0; |
252b5132 | 5380 | |
c629eae0 JJ |
5381 | outrel.r_offset = |
5382 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
5383 | rel->r_offset); | |
0bb2d96a JJ |
5384 | if (outrel.r_offset == (bfd_vma) -1 |
5385 | || outrel.r_offset == (bfd_vma) -2) | |
5386 | skip = (int) outrel.r_offset; | |
252b5132 RH |
5387 | outrel.r_offset += (input_section->output_section->vma |
5388 | + input_section->output_offset); | |
5389 | ||
5390 | if (skip) | |
5391 | memset (&outrel, 0, sizeof outrel); | |
f6c52c13 | 5392 | else if (!SYMBOL_REFERENCES_LOCAL (info, h)) |
252b5132 | 5393 | { |
7619e7c7 | 5394 | unresolved_reloc = FALSE; |
252b5132 RH |
5395 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); |
5396 | outrel.r_addend = rel->r_addend; | |
5397 | } | |
5398 | else | |
5399 | { | |
47388f4c AM |
5400 | outrel.r_addend = relocation + rel->r_addend; |
5401 | ||
252b5132 | 5402 | if (r_type == R_PPC_ADDR32) |
47388f4c | 5403 | outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE); |
252b5132 RH |
5404 | else |
5405 | { | |
5406 | long indx; | |
5407 | ||
47388f4c | 5408 | if (bfd_is_abs_section (sec)) |
252b5132 RH |
5409 | indx = 0; |
5410 | else if (sec == NULL || sec->owner == NULL) | |
5411 | { | |
5412 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 5413 | return FALSE; |
252b5132 RH |
5414 | } |
5415 | else | |
5416 | { | |
5417 | asection *osec; | |
5418 | ||
47388f4c AM |
5419 | /* We are turning this relocation into one |
5420 | against a section symbol. It would be | |
5421 | proper to subtract the symbol's value, | |
5422 | osec->vma, from the emitted reloc addend, | |
5423 | but ld.so expects buggy relocs. */ | |
252b5132 RH |
5424 | osec = sec->output_section; |
5425 | indx = elf_section_data (osec)->dynindx; | |
8da6118f | 5426 | BFD_ASSERT (indx > 0); |
252b5132 RH |
5427 | #ifdef DEBUG |
5428 | if (indx <= 0) | |
55fd94b0 AM |
5429 | printf ("indx=%d section=%s flags=%08x name=%s\n", |
5430 | indx, osec->name, osec->flags, | |
5431 | h->root.root.string); | |
252b5132 RH |
5432 | #endif |
5433 | } | |
5434 | ||
5435 | outrel.r_info = ELF32_R_INFO (indx, r_type); | |
252b5132 RH |
5436 | } |
5437 | } | |
5438 | ||
947216bf AM |
5439 | loc = sreloc->contents; |
5440 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
5441 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
252b5132 | 5442 | |
2243deae | 5443 | if (skip == -1) |
252b5132 | 5444 | continue; |
2243deae L |
5445 | |
5446 | /* This reloc will be computed at runtime. We clear the memory | |
5447 | so that it contains predictable value. */ | |
5448 | if (! skip | |
5449 | && ((input_section->flags & SEC_ALLOC) != 0 | |
5450 | || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE)) | |
5451 | { | |
5452 | relocation = howto->pc_relative ? outrel.r_offset : 0; | |
5453 | addend = 0; | |
5454 | break; | |
5455 | } | |
252b5132 | 5456 | } |
252b5132 RH |
5457 | break; |
5458 | ||
f31a141e AM |
5459 | case R_PPC_RELAX32PC: |
5460 | relocation -= (input_section->output_section->vma | |
5461 | + input_section->output_offset | |
5462 | + rel->r_offset - 4); | |
5463 | /* Fall thru */ | |
deaaf2f3 | 5464 | case R_PPC_RELAX32: |
8517fae7 AM |
5465 | ppc_elf_install_value (output_bfd, contents + rel->r_offset, |
5466 | relocation + addend, r_type); | |
5467 | continue; | |
deaaf2f3 | 5468 | |
70bccea4 | 5469 | /* Indirect .sdata relocation. */ |
7619e7c7 AM |
5470 | case R_PPC_EMB_SDAI16: |
5471 | BFD_ASSERT (htab->sdata != NULL); | |
5472 | relocation | |
3dab13f6 AM |
5473 | = elf_finish_pointer_linker_section (output_bfd, input_bfd, info, |
5474 | htab->sdata, h, relocation, | |
5475 | rel, R_PPC_RELATIVE); | |
252b5132 RH |
5476 | break; |
5477 | ||
70bccea4 | 5478 | /* Indirect .sdata2 relocation. */ |
7619e7c7 AM |
5479 | case R_PPC_EMB_SDA2I16: |
5480 | BFD_ASSERT (htab->sdata2 != NULL); | |
5481 | relocation | |
3dab13f6 AM |
5482 | = elf_finish_pointer_linker_section (output_bfd, input_bfd, info, |
5483 | htab->sdata2, h, relocation, | |
5484 | rel, R_PPC_RELATIVE); | |
252b5132 RH |
5485 | break; |
5486 | ||
70bccea4 AM |
5487 | /* Handle the TOC16 reloc. We want to use the offset within the .got |
5488 | section, not the actual VMA. This is appropriate when generating | |
5489 | an embedded ELF object, for which the .got section acts like the | |
5490 | AIX .toc section. */ | |
7619e7c7 | 5491 | case R_PPC_TOC16: /* phony GOT16 relocations */ |
55fd94b0 | 5492 | BFD_ASSERT (sec != NULL); |
252b5132 RH |
5493 | BFD_ASSERT (bfd_is_und_section (sec) |
5494 | || strcmp (bfd_get_section_name (abfd, sec), ".got") == 0 | |
5495 | || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0) | |
5496 | ||
70bccea4 | 5497 | addend -= sec->output_section->vma + sec->output_offset + 0x8000; |
252b5132 RH |
5498 | break; |
5499 | ||
7619e7c7 | 5500 | case R_PPC_PLTREL24: |
252b5132 | 5501 | /* Relocation is to the entry for this symbol in the |
70bccea4 | 5502 | procedure linkage table. */ |
252b5132 RH |
5503 | BFD_ASSERT (h != NULL); |
5504 | ||
5505 | if (h->plt.offset == (bfd_vma) -1 | |
7619e7c7 | 5506 | || htab->plt == NULL) |
252b5132 RH |
5507 | { |
5508 | /* We didn't make a PLT entry for this symbol. This | |
70bccea4 AM |
5509 | happens when statically linking PIC code, or when |
5510 | using -Bsymbolic. */ | |
252b5132 RH |
5511 | break; |
5512 | } | |
5513 | ||
7619e7c7 AM |
5514 | unresolved_reloc = FALSE; |
5515 | relocation = (htab->plt->output_section->vma | |
5516 | + htab->plt->output_offset | |
252b5132 | 5517 | + h->plt.offset); |
8da6118f | 5518 | break; |
252b5132 | 5519 | |
70bccea4 | 5520 | /* Relocate against _SDA_BASE_. */ |
7619e7c7 | 5521 | case R_PPC_SDAREL16: |
252b5132 RH |
5522 | { |
5523 | const char *name; | |
7619e7c7 | 5524 | const struct elf_link_hash_entry *sh; |
252b5132 | 5525 | |
55fd94b0 | 5526 | BFD_ASSERT (sec != NULL); |
252b5132 | 5527 | name = bfd_get_section_name (abfd, sec->output_section); |
5f819128 AM |
5528 | if (! ((strncmp (name, ".sdata", 6) == 0 |
5529 | && (name[6] == 0 || name[6] == '.')) | |
5530 | || (strncmp (name, ".sbss", 5) == 0 | |
5531 | && (name[5] == 0 || name[5] == '.')))) | |
252b5132 | 5532 | { |
55fd94b0 AM |
5533 | (*_bfd_error_handler) |
5534 | (_("%s: the target (%s) of a %s relocation is " | |
5535 | "in the wrong output section (%s)"), | |
5536 | bfd_archive_filename (input_bfd), | |
5537 | sym_name, | |
5538 | howto->name, | |
5539 | name); | |
252b5132 | 5540 | } |
7619e7c7 AM |
5541 | sh = htab->sdata->sym_hash; |
5542 | addend -= (sh->root.u.def.value | |
5543 | + sh->root.u.def.section->output_section->vma | |
5544 | + sh->root.u.def.section->output_offset); | |
252b5132 RH |
5545 | } |
5546 | break; | |
5547 | ||
70bccea4 | 5548 | /* Relocate against _SDA2_BASE_. */ |
7619e7c7 | 5549 | case R_PPC_EMB_SDA2REL: |
252b5132 RH |
5550 | { |
5551 | const char *name; | |
7619e7c7 | 5552 | const struct elf_link_hash_entry *sh; |
252b5132 | 5553 | |
55fd94b0 | 5554 | BFD_ASSERT (sec != NULL); |
252b5132 | 5555 | name = bfd_get_section_name (abfd, sec->output_section); |
5f819128 AM |
5556 | if (! (strncmp (name, ".sdata2", 7) == 0 |
5557 | || strncmp (name, ".sbss2", 6) == 0)) | |
252b5132 | 5558 | { |
55fd94b0 AM |
5559 | (*_bfd_error_handler) |
5560 | (_("%s: the target (%s) of a %s relocation is " | |
5561 | "in the wrong output section (%s)"), | |
5562 | bfd_archive_filename (input_bfd), | |
5563 | sym_name, | |
5564 | howto->name, | |
5565 | name); | |
c3668558 | 5566 | |
252b5132 | 5567 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 5568 | ret = FALSE; |
252b5132 RH |
5569 | continue; |
5570 | } | |
7619e7c7 AM |
5571 | sh = htab->sdata2->sym_hash; |
5572 | addend -= (sh->root.u.def.value | |
5573 | + sh->root.u.def.section->output_section->vma | |
5574 | + sh->root.u.def.section->output_offset); | |
252b5132 RH |
5575 | } |
5576 | break; | |
5577 | ||
70bccea4 | 5578 | /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */ |
7619e7c7 AM |
5579 | case R_PPC_EMB_SDA21: |
5580 | case R_PPC_EMB_RELSDA: | |
252b5132 RH |
5581 | { |
5582 | const char *name; | |
7619e7c7 | 5583 | const struct elf_link_hash_entry *sh; |
252b5132 RH |
5584 | int reg; |
5585 | ||
55fd94b0 | 5586 | BFD_ASSERT (sec != NULL); |
252b5132 | 5587 | name = bfd_get_section_name (abfd, sec->output_section); |
b34976b6 | 5588 | if (((strncmp (name, ".sdata", 6) == 0 |
5f819128 AM |
5589 | && (name[6] == 0 || name[6] == '.')) |
5590 | || (strncmp (name, ".sbss", 5) == 0 | |
5591 | && (name[5] == 0 || name[5] == '.')))) | |
252b5132 RH |
5592 | { |
5593 | reg = 13; | |
7619e7c7 AM |
5594 | sh = htab->sdata->sym_hash; |
5595 | addend -= (sh->root.u.def.value | |
5596 | + sh->root.u.def.section->output_section->vma | |
5597 | + sh->root.u.def.section->output_offset); | |
252b5132 RH |
5598 | } |
5599 | ||
5f819128 AM |
5600 | else if (strncmp (name, ".sdata2", 7) == 0 |
5601 | || strncmp (name, ".sbss2", 6) == 0) | |
252b5132 RH |
5602 | { |
5603 | reg = 2; | |
7619e7c7 AM |
5604 | sh = htab->sdata2->sym_hash; |
5605 | addend -= (sh->root.u.def.value | |
5606 | + sh->root.u.def.section->output_section->vma | |
5607 | + sh->root.u.def.section->output_offset); | |
252b5132 RH |
5608 | } |
5609 | ||
8da6118f KH |
5610 | else if (strcmp (name, ".PPC.EMB.sdata0") == 0 |
5611 | || strcmp (name, ".PPC.EMB.sbss0") == 0) | |
252b5132 RH |
5612 | { |
5613 | reg = 0; | |
5614 | } | |
5615 | ||
5616 | else | |
5617 | { | |
55fd94b0 AM |
5618 | (*_bfd_error_handler) |
5619 | (_("%s: the target (%s) of a %s relocation is " | |
5620 | "in the wrong output section (%s)"), | |
5621 | bfd_archive_filename (input_bfd), | |
5622 | sym_name, | |
5623 | howto->name, | |
5624 | name); | |
252b5132 RH |
5625 | |
5626 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 5627 | ret = FALSE; |
252b5132 RH |
5628 | continue; |
5629 | } | |
5630 | ||
5631 | if (r_type == R_PPC_EMB_SDA21) | |
5632 | { /* fill in register field */ | |
7619e7c7 | 5633 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
252b5132 | 5634 | insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT); |
7619e7c7 | 5635 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
252b5132 RH |
5636 | } |
5637 | } | |
5638 | break; | |
5639 | ||
70bccea4 | 5640 | /* Relocate against the beginning of the section. */ |
7619e7c7 AM |
5641 | case R_PPC_SECTOFF: |
5642 | case R_PPC_SECTOFF_LO: | |
5643 | case R_PPC_SECTOFF_HI: | |
5644 | case R_PPC_SECTOFF_HA: | |
55fd94b0 | 5645 | BFD_ASSERT (sec != NULL); |
252b5132 | 5646 | addend -= sec->output_section->vma; |
252b5132 RH |
5647 | break; |
5648 | ||
70bccea4 | 5649 | /* Negative relocations. */ |
7619e7c7 AM |
5650 | case R_PPC_EMB_NADDR32: |
5651 | case R_PPC_EMB_NADDR16: | |
5652 | case R_PPC_EMB_NADDR16_LO: | |
5653 | case R_PPC_EMB_NADDR16_HI: | |
5654 | case R_PPC_EMB_NADDR16_HA: | |
8da6118f | 5655 | addend -= 2 * relocation; |
252b5132 RH |
5656 | break; |
5657 | ||
7619e7c7 AM |
5658 | case R_PPC_COPY: |
5659 | case R_PPC_GLOB_DAT: | |
5660 | case R_PPC_JMP_SLOT: | |
5661 | case R_PPC_RELATIVE: | |
5662 | case R_PPC_PLT32: | |
5663 | case R_PPC_PLTREL32: | |
5664 | case R_PPC_PLT16_LO: | |
5665 | case R_PPC_PLT16_HI: | |
5666 | case R_PPC_PLT16_HA: | |
5667 | case R_PPC_ADDR30: | |
5668 | case R_PPC_EMB_RELSEC16: | |
5669 | case R_PPC_EMB_RELST_LO: | |
5670 | case R_PPC_EMB_RELST_HI: | |
5671 | case R_PPC_EMB_RELST_HA: | |
5672 | case R_PPC_EMB_BIT_FLD: | |
5673 | (*_bfd_error_handler) | |
7b609f53 | 5674 | (_("%s: relocation %s is not yet supported for symbol %s."), |
7619e7c7 AM |
5675 | bfd_archive_filename (input_bfd), |
5676 | howto->name, | |
5677 | sym_name); | |
252b5132 RH |
5678 | |
5679 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 5680 | ret = FALSE; |
252b5132 | 5681 | continue; |
7619e7c7 | 5682 | } |
252b5132 | 5683 | |
7619e7c7 AM |
5684 | /* Do any further special processing. */ |
5685 | switch (r_type) | |
5686 | { | |
5687 | default: | |
5688 | break; | |
5689 | ||
5690 | case R_PPC_ADDR16_HA: | |
5691 | case R_PPC_GOT16_HA: | |
5692 | case R_PPC_PLT16_HA: | |
5693 | case R_PPC_SECTOFF_HA: | |
5694 | case R_PPC_TPREL16_HA: | |
5695 | case R_PPC_DTPREL16_HA: | |
5696 | case R_PPC_GOT_TLSGD16_HA: | |
5697 | case R_PPC_GOT_TLSLD16_HA: | |
5698 | case R_PPC_GOT_TPREL16_HA: | |
5699 | case R_PPC_GOT_DTPREL16_HA: | |
5700 | case R_PPC_EMB_NADDR16_HA: | |
5701 | case R_PPC_EMB_RELST_HA: | |
5702 | /* It's just possible that this symbol is a weak symbol | |
7b609f53 | 5703 | that's not actually defined anywhere. In that case, |
7619e7c7 AM |
5704 | 'sec' would be NULL, and we should leave the symbol |
5705 | alone (it will be set to zero elsewhere in the link). */ | |
5706 | if (sec != NULL) | |
e515b051 AM |
5707 | /* Add 0x10000 if sign bit in 0:15 is set. |
5708 | Bits 0:15 are not used. */ | |
5709 | addend += 0x8000; | |
7619e7c7 | 5710 | break; |
252b5132 RH |
5711 | } |
5712 | ||
252b5132 | 5713 | #ifdef DEBUG |
55fd94b0 AM |
5714 | fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, " |
5715 | "offset = %ld, addend = %ld\n", | |
252b5132 | 5716 | howto->name, |
8da6118f | 5717 | (int) r_type, |
252b5132 RH |
5718 | sym_name, |
5719 | r_symndx, | |
7619e7c7 | 5720 | (long) rel->r_offset, |
8da6118f | 5721 | (long) addend); |
252b5132 RH |
5722 | #endif |
5723 | ||
7619e7c7 AM |
5724 | if (unresolved_reloc |
5725 | && !((input_section->flags & SEC_DEBUGGING) != 0 | |
5726 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0)) | |
5727 | { | |
5728 | (*_bfd_error_handler) | |
7b609f53 | 5729 | (_("%s(%s+0x%lx): unresolvable %s relocation against symbol `%s'"), |
7619e7c7 AM |
5730 | bfd_archive_filename (input_bfd), |
5731 | bfd_get_section_name (input_bfd, input_section), | |
5732 | (long) rel->r_offset, | |
7b609f53 | 5733 | howto->name, |
7619e7c7 AM |
5734 | sym_name); |
5735 | ret = FALSE; | |
5736 | } | |
5737 | ||
252b5132 RH |
5738 | r = _bfd_final_link_relocate (howto, |
5739 | input_bfd, | |
5740 | input_section, | |
5741 | contents, | |
7619e7c7 | 5742 | rel->r_offset, |
252b5132 RH |
5743 | relocation, |
5744 | addend); | |
5745 | ||
7619e7c7 | 5746 | if (r != bfd_reloc_ok) |
252b5132 | 5747 | { |
7619e7c7 AM |
5748 | if (sym_name == NULL) |
5749 | sym_name = "(null)"; | |
5750 | if (r == bfd_reloc_overflow) | |
252b5132 | 5751 | { |
7619e7c7 AM |
5752 | if (warned) |
5753 | continue; | |
5754 | if (h != NULL | |
5755 | && h->root.type == bfd_link_hash_undefweak | |
dc1bc0c9 RH |
5756 | && howto->pc_relative) |
5757 | { | |
5758 | /* Assume this is a call protected by other code that | |
5759 | detect the symbol is undefined. If this is the case, | |
5760 | we can safely ignore the overflow. If not, the | |
5761 | program is hosed anyway, and a little warning isn't | |
5762 | going to help. */ | |
252b5132 | 5763 | |
dc1bc0c9 RH |
5764 | continue; |
5765 | } | |
252b5132 | 5766 | |
7619e7c7 AM |
5767 | if (! (*info->callbacks->reloc_overflow) (info, |
5768 | sym_name, | |
5769 | howto->name, | |
5770 | rel->r_addend, | |
5771 | input_bfd, | |
5772 | input_section, | |
5773 | rel->r_offset)) | |
5774 | return FALSE; | |
dc1bc0c9 RH |
5775 | } |
5776 | else | |
5777 | { | |
7619e7c7 | 5778 | (*_bfd_error_handler) |
7b609f53 | 5779 | (_("%s(%s+0x%lx): %s reloc against `%s': error %d"), |
7619e7c7 AM |
5780 | bfd_archive_filename (input_bfd), |
5781 | bfd_get_section_name (input_bfd, input_section), | |
7b609f53 | 5782 | (long) rel->r_offset, howto->name, sym_name, (int) r); |
7619e7c7 | 5783 | ret = FALSE; |
252b5132 RH |
5784 | } |
5785 | } | |
5786 | } | |
5787 | ||
252b5132 RH |
5788 | #ifdef DEBUG |
5789 | fprintf (stderr, "\n"); | |
5790 | #endif | |
5791 | ||
5792 | return ret; | |
5793 | } | |
29c2fb7c AJ |
5794 | |
5795 | static enum elf_reloc_type_class | |
55fd94b0 | 5796 | ppc_elf_reloc_type_class (const Elf_Internal_Rela *rela) |
29c2fb7c | 5797 | { |
55fd94b0 | 5798 | switch (ELF32_R_TYPE (rela->r_info)) |
29c2fb7c AJ |
5799 | { |
5800 | case R_PPC_RELATIVE: | |
5801 | return reloc_class_relative; | |
5802 | case R_PPC_REL24: | |
5803 | case R_PPC_ADDR24: | |
5804 | case R_PPC_JMP_SLOT: | |
5805 | return reloc_class_plt; | |
5806 | case R_PPC_COPY: | |
5807 | return reloc_class_copy; | |
5808 | default: | |
5809 | return reloc_class_normal; | |
5810 | } | |
5811 | } | |
252b5132 | 5812 | \f |
ae9a127f NC |
5813 | /* Support for core dump NOTE sections. */ |
5814 | ||
b34976b6 | 5815 | static bfd_boolean |
55fd94b0 | 5816 | ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
c5fccbec DJ |
5817 | { |
5818 | int offset; | |
dc810e39 | 5819 | unsigned int raw_size; |
c5fccbec DJ |
5820 | |
5821 | switch (note->descsz) | |
5822 | { | |
70bccea4 AM |
5823 | default: |
5824 | return FALSE; | |
c5fccbec | 5825 | |
70bccea4 AM |
5826 | case 268: /* Linux/PPC. */ |
5827 | /* pr_cursig */ | |
5828 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
c5fccbec | 5829 | |
70bccea4 AM |
5830 | /* pr_pid */ |
5831 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24); | |
c5fccbec | 5832 | |
70bccea4 AM |
5833 | /* pr_reg */ |
5834 | offset = 72; | |
5835 | raw_size = 192; | |
c5fccbec | 5836 | |
70bccea4 | 5837 | break; |
c5fccbec DJ |
5838 | } |
5839 | ||
5840 | /* Make a ".reg/999" section. */ | |
5841 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
5842 | raw_size, note->descpos + offset); | |
5843 | } | |
5844 | ||
b34976b6 | 5845 | static bfd_boolean |
55fd94b0 | 5846 | ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
c5fccbec DJ |
5847 | { |
5848 | switch (note->descsz) | |
5849 | { | |
70bccea4 AM |
5850 | default: |
5851 | return FALSE; | |
c5fccbec | 5852 | |
70bccea4 AM |
5853 | case 128: /* Linux/PPC elf_prpsinfo. */ |
5854 | elf_tdata (abfd)->core_program | |
5855 | = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16); | |
5856 | elf_tdata (abfd)->core_command | |
5857 | = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80); | |
c5fccbec DJ |
5858 | } |
5859 | ||
5860 | /* Note that for some reason, a spurious space is tacked | |
5861 | onto the end of the args in some (at least one anyway) | |
5862 | implementations, so strip it off if it exists. */ | |
5863 | ||
5864 | { | |
5865 | char *command = elf_tdata (abfd)->core_command; | |
5866 | int n = strlen (command); | |
5867 | ||
5868 | if (0 < n && command[n - 1] == ' ') | |
5869 | command[n - 1] = '\0'; | |
5870 | } | |
5871 | ||
b34976b6 | 5872 | return TRUE; |
c5fccbec DJ |
5873 | } |
5874 | \f | |
e1a9cb8e NC |
5875 | /* Very simple linked list structure for recording apuinfo values. */ |
5876 | typedef struct apuinfo_list | |
5877 | { | |
70bccea4 AM |
5878 | struct apuinfo_list *next; |
5879 | unsigned long value; | |
e1a9cb8e NC |
5880 | } |
5881 | apuinfo_list; | |
5882 | ||
55fd94b0 | 5883 | static apuinfo_list *head; |
e1a9cb8e NC |
5884 | |
5885 | ||
e1a9cb8e | 5886 | static void |
55fd94b0 | 5887 | apuinfo_list_init (void) |
e1a9cb8e NC |
5888 | { |
5889 | head = NULL; | |
5890 | } | |
5891 | ||
5892 | static void | |
55fd94b0 | 5893 | apuinfo_list_add (unsigned long value) |
e1a9cb8e | 5894 | { |
70bccea4 | 5895 | apuinfo_list *entry = head; |
e1a9cb8e NC |
5896 | |
5897 | while (entry != NULL) | |
5898 | { | |
5899 | if (entry->value == value) | |
5900 | return; | |
5901 | entry = entry->next; | |
5902 | } | |
5903 | ||
5904 | entry = bfd_malloc (sizeof (* entry)); | |
5905 | if (entry == NULL) | |
5906 | return; | |
5907 | ||
5908 | entry->value = value; | |
5909 | entry->next = head; | |
5910 | head = entry; | |
5911 | } | |
5912 | ||
5913 | static unsigned | |
55fd94b0 | 5914 | apuinfo_list_length (void) |
e1a9cb8e | 5915 | { |
70bccea4 | 5916 | apuinfo_list *entry; |
e1a9cb8e NC |
5917 | unsigned long count; |
5918 | ||
5919 | for (entry = head, count = 0; | |
5920 | entry; | |
5921 | entry = entry->next) | |
5922 | ++ count; | |
5923 | ||
5924 | return count; | |
5925 | } | |
5926 | ||
5927 | static inline unsigned long | |
55fd94b0 | 5928 | apuinfo_list_element (unsigned long number) |
e1a9cb8e NC |
5929 | { |
5930 | apuinfo_list * entry; | |
5931 | ||
5932 | for (entry = head; | |
5933 | entry && number --; | |
5934 | entry = entry->next) | |
5935 | ; | |
5936 | ||
5937 | return entry ? entry->value : 0; | |
5938 | } | |
5939 | ||
5940 | static void | |
55fd94b0 | 5941 | apuinfo_list_finish (void) |
e1a9cb8e | 5942 | { |
70bccea4 | 5943 | apuinfo_list *entry; |
e1a9cb8e NC |
5944 | |
5945 | for (entry = head; entry;) | |
5946 | { | |
70bccea4 | 5947 | apuinfo_list *next = entry->next; |
e1a9cb8e NC |
5948 | free (entry); |
5949 | entry = next; | |
5950 | } | |
5951 | ||
5952 | head = NULL; | |
5953 | } | |
5954 | ||
70bccea4 AM |
5955 | #define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo" |
5956 | #define APUINFO_LABEL "APUinfo" | |
e1a9cb8e NC |
5957 | |
5958 | /* Scan the input BFDs and create a linked list of | |
5959 | the APUinfo values that will need to be emitted. */ | |
5960 | ||
55fd94b0 AM |
5961 | static void |
5962 | ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info) | |
e1a9cb8e | 5963 | { |
70bccea4 AM |
5964 | bfd *ibfd; |
5965 | asection *asec; | |
5966 | char *buffer; | |
5967 | unsigned num_input_sections; | |
e1a9cb8e | 5968 | bfd_size_type output_section_size; |
70bccea4 AM |
5969 | unsigned i; |
5970 | unsigned num_entries; | |
e1a9cb8e NC |
5971 | unsigned long offset; |
5972 | unsigned long length; | |
70bccea4 | 5973 | const char *error_message = NULL; |
e1a9cb8e | 5974 | |
6b0817e5 NC |
5975 | if (link_info == NULL) |
5976 | return; | |
5977 | ||
e1a9cb8e NC |
5978 | /* Scan the input bfds, looking for apuinfo sections. */ |
5979 | num_input_sections = 0; | |
5980 | output_section_size = 0; | |
5981 | ||
5982 | for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next) | |
5983 | { | |
5984 | asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME); | |
5985 | if (asec) | |
5986 | { | |
5987 | ++ num_input_sections; | |
5988 | output_section_size += asec->_raw_size; | |
5989 | } | |
5990 | } | |
5991 | ||
5992 | /* We need at least one input sections | |
5993 | in order to make merging worthwhile. */ | |
5994 | if (num_input_sections < 1) | |
5995 | return; | |
5996 | ||
5997 | /* Just make sure that the output section exists as well. */ | |
5998 | asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); | |
5999 | if (asec == NULL) | |
6000 | return; | |
6001 | ||
6002 | /* Allocate a buffer for the contents of the input sections. */ | |
6003 | buffer = bfd_malloc (output_section_size); | |
6004 | if (buffer == NULL) | |
6005 | return; | |
6006 | ||
6007 | offset = 0; | |
6008 | apuinfo_list_init (); | |
6009 | ||
6010 | /* Read in the input sections contents. */ | |
6011 | for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next) | |
6012 | { | |
70bccea4 AM |
6013 | unsigned long datum; |
6014 | char *ptr; | |
86bbe32f | 6015 | |
e1a9cb8e NC |
6016 | asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME); |
6017 | if (asec == NULL) | |
6018 | continue; | |
6019 | ||
6020 | length = asec->_raw_size; | |
6021 | if (length < 24) | |
6022 | { | |
6023 | error_message = _("corrupt or empty %s section in %s"); | |
6024 | goto fail; | |
6025 | } | |
86bbe32f | 6026 | |
e1a9cb8e NC |
6027 | if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0 |
6028 | || (bfd_bread (buffer + offset, length, ibfd) != length)) | |
6029 | { | |
6030 | error_message = _("unable to read in %s section from %s"); | |
6031 | goto fail; | |
6032 | } | |
6033 | ||
6034 | /* Process the contents of the section. */ | |
6035 | ptr = buffer + offset; | |
6036 | error_message = _("corrupt %s section in %s"); | |
6037 | ||
6038 | /* Verify the contents of the header. Note - we have to | |
6039 | extract the values this way in order to allow for a | |
6040 | host whose endian-ness is different from the target. */ | |
6041 | datum = bfd_get_32 (ibfd, ptr); | |
6042 | if (datum != sizeof APUINFO_LABEL) | |
6043 | goto fail; | |
6044 | ||
6045 | datum = bfd_get_32 (ibfd, ptr + 8); | |
6046 | if (datum != 0x2) | |
6047 | goto fail; | |
6048 | ||
6049 | if (strcmp (ptr + 12, APUINFO_LABEL) != 0) | |
6050 | goto fail; | |
6051 | ||
88810f8c | 6052 | /* Get the number of bytes used for apuinfo entries. */ |
e1a9cb8e | 6053 | datum = bfd_get_32 (ibfd, ptr + 4); |
88810f8c | 6054 | if (datum + 20 != length) |
e1a9cb8e NC |
6055 | goto fail; |
6056 | ||
6057 | /* Make sure that we do not run off the end of the section. */ | |
6058 | if (offset + length > output_section_size) | |
6059 | goto fail; | |
6060 | ||
6061 | /* Scan the apuinfo section, building a list of apuinfo numbers. */ | |
88810f8c MM |
6062 | for (i = 0; i < datum; i += 4) |
6063 | apuinfo_list_add (bfd_get_32 (ibfd, ptr + 20 + i)); | |
e1a9cb8e NC |
6064 | |
6065 | /* Update the offset. */ | |
6066 | offset += length; | |
6067 | } | |
6068 | ||
6069 | error_message = NULL; | |
6070 | ||
6071 | /* Compute the size of the output section. */ | |
6072 | num_entries = apuinfo_list_length (); | |
6073 | output_section_size = 20 + num_entries * 4; | |
6074 | ||
6075 | asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); | |
6076 | ||
70bccea4 | 6077 | if (! bfd_set_section_size (abfd, asec, output_section_size)) |
e1a9cb8e NC |
6078 | ibfd = abfd, |
6079 | error_message = _("warning: unable to set size of %s section in %s"); | |
86bbe32f | 6080 | |
e1a9cb8e NC |
6081 | fail: |
6082 | free (buffer); | |
6083 | ||
6084 | if (error_message) | |
70bccea4 AM |
6085 | (*_bfd_error_handler) (error_message, APUINFO_SECTION_NAME, |
6086 | bfd_archive_filename (ibfd)); | |
e1a9cb8e NC |
6087 | } |
6088 | ||
6089 | ||
6090 | /* Prevent the output section from accumulating the input sections' | |
6091 | contents. We have already stored this in our linked list structure. */ | |
6092 | ||
55fd94b0 AM |
6093 | static bfd_boolean |
6094 | ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED, | |
6095 | asection *asec, | |
6096 | bfd_byte *contents ATTRIBUTE_UNUSED) | |
e1a9cb8e | 6097 | { |
70bccea4 AM |
6098 | return (apuinfo_list_length () |
6099 | && strcmp (asec->name, APUINFO_SECTION_NAME) == 0); | |
e1a9cb8e NC |
6100 | } |
6101 | ||
6102 | ||
6103 | /* Finally we can generate the output section. */ | |
6104 | ||
55fd94b0 AM |
6105 | static void |
6106 | ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED) | |
e1a9cb8e | 6107 | { |
70bccea4 AM |
6108 | bfd_byte *buffer; |
6109 | asection *asec; | |
6110 | unsigned i; | |
6111 | unsigned num_entries; | |
e1a9cb8e NC |
6112 | bfd_size_type length; |
6113 | ||
6114 | asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); | |
6115 | if (asec == NULL) | |
6116 | return; | |
6117 | ||
6b0817e5 NC |
6118 | if (apuinfo_list_length () == 0) |
6119 | return; | |
6120 | ||
e1a9cb8e NC |
6121 | length = asec->_raw_size; |
6122 | if (length < 20) | |
6123 | return; | |
6124 | ||
6125 | buffer = bfd_malloc (length); | |
6126 | if (buffer == NULL) | |
6127 | { | |
70bccea4 AM |
6128 | (*_bfd_error_handler) |
6129 | (_("failed to allocate space for new APUinfo section.")); | |
e1a9cb8e NC |
6130 | return; |
6131 | } | |
6132 | ||
6133 | /* Create the apuinfo header. */ | |
6134 | num_entries = apuinfo_list_length (); | |
6135 | bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer); | |
88810f8c | 6136 | bfd_put_32 (abfd, num_entries * 4, buffer + 4); |
e1a9cb8e NC |
6137 | bfd_put_32 (abfd, 0x2, buffer + 8); |
6138 | strcpy (buffer + 12, APUINFO_LABEL); | |
86bbe32f | 6139 | |
e1a9cb8e NC |
6140 | length = 20; |
6141 | for (i = 0; i < num_entries; i++) | |
6142 | { | |
6143 | bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length); | |
6144 | length += 4; | |
6145 | } | |
6146 | ||
6147 | if (length != asec->_raw_size) | |
70bccea4 | 6148 | (*_bfd_error_handler) (_("failed to compute new APUinfo section.")); |
86bbe32f | 6149 | |
e1a9cb8e | 6150 | if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length)) |
70bccea4 | 6151 | (*_bfd_error_handler) (_("failed to install new APUinfo section.")); |
86bbe32f | 6152 | |
e1a9cb8e NC |
6153 | free (buffer); |
6154 | ||
6155 | apuinfo_list_finish (); | |
6156 | } | |
2f89ff8d L |
6157 | |
6158 | /* Add extra PPC sections -- Note, for now, make .sbss2 and | |
6159 | .PPC.EMB.sbss0 a normal section, and not a bss section so | |
6160 | that the linker doesn't crater when trying to make more than | |
6161 | 2 sections. */ | |
6162 | ||
6163 | static struct bfd_elf_special_section const ppc_elf_special_sections[]= | |
6164 | { | |
7dcb9820 AM |
6165 | { ".tags", 5, 0, SHT_ORDERED, SHF_ALLOC }, |
6166 | { ".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
6167 | { ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
6168 | { ".sdata2", 7, -2, SHT_PROGBITS, SHF_ALLOC }, | |
6169 | { ".sbss2", 6, -2, SHT_PROGBITS, SHF_ALLOC }, | |
6170 | { ".PPC.EMB.apuinfo", 16, 0, SHT_NOTE, 0 }, | |
6171 | { ".PPC.EMB.sdata0", 15, 0, SHT_PROGBITS, SHF_ALLOC }, | |
6172 | { ".PPC.EMB.sbss0", 14, 0, SHT_PROGBITS, SHF_ALLOC }, | |
6173 | { ".plt", 4, 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR }, | |
6174 | { NULL, 0, 0, 0, 0 } | |
2f89ff8d | 6175 | }; |
e1a9cb8e | 6176 | \f |
252b5132 RH |
6177 | #define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec |
6178 | #define TARGET_LITTLE_NAME "elf32-powerpcle" | |
6179 | #define TARGET_BIG_SYM bfd_elf32_powerpc_vec | |
6180 | #define TARGET_BIG_NAME "elf32-powerpc" | |
6181 | #define ELF_ARCH bfd_arch_powerpc | |
6182 | #define ELF_MACHINE_CODE EM_PPC | |
d0facd1b NC |
6183 | #ifdef __QNXTARGET__ |
6184 | #define ELF_MAXPAGESIZE 0x1000 | |
6185 | #else | |
252b5132 | 6186 | #define ELF_MAXPAGESIZE 0x10000 |
d0facd1b | 6187 | #endif |
252b5132 RH |
6188 | #define elf_info_to_howto ppc_elf_info_to_howto |
6189 | ||
6190 | #ifdef EM_CYGNUS_POWERPC | |
6191 | #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC | |
6192 | #endif | |
6193 | ||
6194 | #ifdef EM_PPC_OLD | |
6195 | #define ELF_MACHINE_ALT2 EM_PPC_OLD | |
6196 | #endif | |
6197 | ||
6198 | #define elf_backend_plt_not_loaded 1 | |
6199 | #define elf_backend_got_symbol_offset 4 | |
6200 | #define elf_backend_can_gc_sections 1 | |
51b64d56 | 6201 | #define elf_backend_can_refcount 1 |
252b5132 | 6202 | #define elf_backend_got_header_size 12 |
b491616a | 6203 | #define elf_backend_rela_normal 1 |
252b5132 | 6204 | |
43c40ab2 | 6205 | #define bfd_elf32_mkobject ppc_elf_mkobject |
252b5132 | 6206 | #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data |
70bccea4 | 6207 | #define bfd_elf32_bfd_relax_section ppc_elf_relax_section |
252b5132 RH |
6208 | #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup |
6209 | #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags | |
70bccea4 | 6210 | #define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create |
252b5132 | 6211 | |
feee612b | 6212 | #define elf_backend_object_p ppc_elf_object_p |
252b5132 RH |
6213 | #define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook |
6214 | #define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook | |
6215 | #define elf_backend_section_from_shdr ppc_elf_section_from_shdr | |
6216 | #define elf_backend_relocate_section ppc_elf_relocate_section | |
6217 | #define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections | |
6218 | #define elf_backend_check_relocs ppc_elf_check_relocs | |
7fce784e | 6219 | #define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol |
252b5132 RH |
6220 | #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol |
6221 | #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook | |
6222 | #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections | |
6223 | #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol | |
6224 | #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections | |
6225 | #define elf_backend_fake_sections ppc_elf_fake_sections | |
6226 | #define elf_backend_additional_program_headers ppc_elf_additional_program_headers | |
6227 | #define elf_backend_modify_segment_map ppc_elf_modify_segment_map | |
c5fccbec DJ |
6228 | #define elf_backend_grok_prstatus ppc_elf_grok_prstatus |
6229 | #define elf_backend_grok_psinfo ppc_elf_grok_psinfo | |
29c2fb7c | 6230 | #define elf_backend_reloc_type_class ppc_elf_reloc_type_class |
70bccea4 AM |
6231 | #define elf_backend_begin_write_processing ppc_elf_begin_write_processing |
6232 | #define elf_backend_final_write_processing ppc_elf_final_write_processing | |
6233 | #define elf_backend_write_section ppc_elf_write_section | |
2f89ff8d | 6234 | #define elf_backend_special_sections ppc_elf_special_sections |
252b5132 RH |
6235 | |
6236 | #include "elf32-target.h" |