Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* BFD COFF object file private structure. |
7898deda | 2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
88183869 | 3 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | Written by Cygnus Support. | |
6 | ||
7920ce38 | 7 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 8 | |
7920ce38 NC |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 11 | the Free Software Foundation; either version 3 of the License, or |
7920ce38 | 12 | (at your option) any later version. |
252b5132 | 13 | |
7920ce38 NC |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
252b5132 | 18 | |
7920ce38 NC |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
22 | MA 02110-1301, USA. */ | |
252b5132 RH |
23 | |
24 | #include "bfdlink.h" | |
25 | ||
7920ce38 NC |
26 | /* Object file tdata; access macros. */ |
27 | ||
28 | #define coff_data(bfd) ((bfd)->tdata.coff_obj_data) | |
29 | #define exec_hdr(bfd) (coff_data (bfd)->hdr) | |
30 | #define obj_pe(bfd) (coff_data (bfd)->pe) | |
31 | #define obj_symbols(bfd) (coff_data (bfd)->symbols) | |
32 | #define obj_sym_filepos(bfd) (coff_data (bfd)->sym_filepos) | |
33 | #define obj_relocbase(bfd) (coff_data (bfd)->relocbase) | |
34 | #define obj_raw_syments(bfd) (coff_data (bfd)->raw_syments) | |
35 | #define obj_raw_syment_count(bfd) (coff_data (bfd)->raw_syment_count) | |
36 | #define obj_convert(bfd) (coff_data (bfd)->conversion_table) | |
37 | #define obj_conv_table_size(bfd) (coff_data (bfd)->conv_table_size) | |
38 | #define obj_coff_external_syms(bfd) (coff_data (bfd)->external_syms) | |
39 | #define obj_coff_keep_syms(bfd) (coff_data (bfd)->keep_syms) | |
40 | #define obj_coff_strings(bfd) (coff_data (bfd)->strings) | |
41 | #define obj_coff_keep_strings(bfd) (coff_data (bfd)->keep_strings) | |
42 | #define obj_coff_sym_hashes(bfd) (coff_data (bfd)->sym_hashes) | |
d71f672e | 43 | #define obj_coff_strings_written(bfd) (coff_data (bfd)->strings_written) |
7920ce38 | 44 | #define obj_coff_local_toc_table(bfd) (coff_data (bfd)->local_toc_sym_map) |
252b5132 RH |
45 | |
46 | /* `Tdata' information kept for COFF files. */ | |
47 | ||
48 | typedef struct coff_tdata | |
49 | { | |
7920ce38 | 50 | struct coff_symbol_struct *symbols; /* Symtab for input bfd. */ |
252b5132 RH |
51 | unsigned int *conversion_table; |
52 | int conv_table_size; | |
53 | file_ptr sym_filepos; | |
54 | ||
55 | struct coff_ptr_struct *raw_syments; | |
00692651 | 56 | unsigned long raw_syment_count; |
252b5132 | 57 | |
7920ce38 | 58 | /* These are only valid once writing has begun. */ |
252b5132 RH |
59 | long int relocbase; |
60 | ||
61 | /* These members communicate important constants about the symbol table | |
62 | to GDB's symbol-reading code. These `constants' unfortunately vary | |
63 | from coff implementation to implementation... */ | |
64 | unsigned local_n_btmask; | |
65 | unsigned local_n_btshft; | |
66 | unsigned local_n_tmask; | |
67 | unsigned local_n_tshift; | |
68 | unsigned local_symesz; | |
69 | unsigned local_auxesz; | |
70 | unsigned local_linesz; | |
71 | ||
72 | /* The unswapped external symbols. May be NULL. Read by | |
73 | _bfd_coff_get_external_symbols. */ | |
7920ce38 | 74 | void * external_syms; |
b34976b6 AM |
75 | /* If this is TRUE, the external_syms may not be freed. */ |
76 | bfd_boolean keep_syms; | |
252b5132 RH |
77 | |
78 | /* The string table. May be NULL. Read by | |
79 | _bfd_coff_read_string_table. */ | |
80 | char *strings; | |
b34976b6 AM |
81 | /* If this is TRUE, the strings may not be freed. */ |
82 | bfd_boolean keep_strings; | |
83 | /* If this is TRUE, the strings have been written out already. */ | |
84 | bfd_boolean strings_written; | |
252b5132 | 85 | |
7920ce38 | 86 | /* Is this a PE format coff file? */ |
252b5132 RH |
87 | int pe; |
88 | /* Used by the COFF backend linker. */ | |
89 | struct coff_link_hash_entry **sym_hashes; | |
90 | ||
7920ce38 | 91 | /* Used by the pe linker for PowerPC. */ |
252b5132 RH |
92 | int *local_toc_sym_map; |
93 | ||
94 | struct bfd_link_info *link_info; | |
95 | ||
96 | /* Used by coff_find_nearest_line. */ | |
7920ce38 | 97 | void * line_info; |
252b5132 | 98 | |
7920ce38 NC |
99 | /* A place to stash dwarf2 info for this bfd. */ |
100 | void * dwarf2_find_line_info; | |
51db3708 | 101 | |
00692651 ILT |
102 | /* The timestamp from the COFF file header. */ |
103 | long timestamp; | |
104 | ||
252b5132 RH |
105 | /* Copy of some of the f_flags bits in the COFF filehdr structure, |
106 | used by ARM code. */ | |
107 | flagword flags; | |
108 | ||
109 | } coff_data_type; | |
110 | ||
7920ce38 | 111 | /* Tdata for pe image files. */ |
252b5132 RH |
112 | typedef struct pe_tdata |
113 | { | |
114 | coff_data_type coff; | |
115 | struct internal_extra_pe_aouthdr pe_opthdr; | |
116 | int dll; | |
117 | int has_reloc_section; | |
7920ce38 | 118 | bfd_boolean (*in_reloc_p) (bfd *, reloc_howto_type *); |
252b5132 RH |
119 | flagword real_flags; |
120 | } pe_data_type; | |
121 | ||
122 | #define pe_data(bfd) ((bfd)->tdata.pe_obj_data) | |
123 | ||
124 | /* Tdata for XCOFF files. */ | |
125 | ||
126 | struct xcoff_tdata | |
127 | { | |
128 | /* Basic COFF information. */ | |
129 | coff_data_type coff; | |
130 | ||
b34976b6 AM |
131 | /* TRUE if this is an XCOFF64 file. */ |
132 | bfd_boolean xcoff64; | |
a2fdf270 | 133 | |
b34976b6 AM |
134 | /* TRUE if a large a.out header should be generated. */ |
135 | bfd_boolean full_aouthdr; | |
252b5132 RH |
136 | |
137 | /* TOC value. */ | |
138 | bfd_vma toc; | |
139 | ||
140 | /* Index of section holding TOC. */ | |
141 | int sntoc; | |
142 | ||
143 | /* Index of section holding entry point. */ | |
144 | int snentry; | |
145 | ||
146 | /* .text alignment from optional header. */ | |
147 | int text_align_power; | |
148 | ||
149 | /* .data alignment from optional header. */ | |
150 | int data_align_power; | |
151 | ||
152 | /* modtype from optional header. */ | |
153 | short modtype; | |
154 | ||
155 | /* cputype from optional header. */ | |
156 | short cputype; | |
157 | ||
158 | /* maxdata from optional header. */ | |
beb1bf64 | 159 | bfd_vma maxdata; |
252b5132 RH |
160 | |
161 | /* maxstack from optional header. */ | |
beb1bf64 | 162 | bfd_vma maxstack; |
252b5132 RH |
163 | |
164 | /* Used by the XCOFF backend linker. */ | |
165 | asection **csects; | |
e450936a | 166 | long *debug_indices; |
3df13c4a | 167 | unsigned int *lineno_counts; |
252b5132 RH |
168 | unsigned int import_file_id; |
169 | }; | |
170 | ||
171 | #define xcoff_data(abfd) ((abfd)->tdata.xcoff_obj_data) | |
172 | ||
08da05b0 | 173 | /* We take the address of the first element of an asymbol to ensure that the |
7920ce38 | 174 | macro is only ever applied to an asymbol. */ |
252b5132 RH |
175 | #define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd))) |
176 | ||
177 | /* The used_by_bfd field of a section may be set to a pointer to this | |
178 | structure. */ | |
179 | ||
180 | struct coff_section_tdata | |
181 | { | |
182 | /* The relocs, swapped into COFF internal form. This may be NULL. */ | |
183 | struct internal_reloc *relocs; | |
b34976b6 AM |
184 | /* If this is TRUE, the relocs entry may not be freed. */ |
185 | bfd_boolean keep_relocs; | |
252b5132 RH |
186 | /* The section contents. This may be NULL. */ |
187 | bfd_byte *contents; | |
b34976b6 AM |
188 | /* If this is TRUE, the contents entry may not be freed. */ |
189 | bfd_boolean keep_contents; | |
252b5132 RH |
190 | /* Information cached by coff_find_nearest_line. */ |
191 | bfd_vma offset; | |
192 | unsigned int i; | |
193 | const char *function; | |
082b7297 L |
194 | /* Optional information about a COMDAT entry; NULL if not COMDAT. */ |
195 | struct coff_comdat_info *comdat; | |
252b5132 RH |
196 | int line_base; |
197 | /* A pointer used for .stab linking optimizations. */ | |
7920ce38 | 198 | void * stab_info; |
252b5132 | 199 | /* Available for individual backends. */ |
7920ce38 | 200 | void * tdata; |
252b5132 RH |
201 | }; |
202 | ||
203 | /* An accessor macro for the coff_section_tdata structure. */ | |
204 | #define coff_section_data(abfd, sec) \ | |
205 | ((struct coff_section_tdata *) (sec)->used_by_bfd) | |
206 | ||
207 | /* Tdata for sections in XCOFF files. This is used by the linker. */ | |
208 | ||
209 | struct xcoff_section_tdata | |
210 | { | |
211 | /* Used for XCOFF csects created by the linker; points to the real | |
212 | XCOFF section which contains this csect. */ | |
213 | asection *enclosing; | |
214 | /* The lineno_count field for the enclosing section, because we are | |
215 | going to clobber it there. */ | |
216 | unsigned int lineno_count; | |
4cc02a02 | 217 | /* The first and last symbol indices for symbols used by this csect. */ |
252b5132 RH |
218 | unsigned long first_symndx; |
219 | unsigned long last_symndx; | |
220 | }; | |
221 | ||
222 | /* An accessor macro the xcoff_section_tdata structure. */ | |
223 | #define xcoff_section_data(abfd, sec) \ | |
224 | ((struct xcoff_section_tdata *) coff_section_data ((abfd), (sec))->tdata) | |
225 | ||
8d3ad4e1 | 226 | /* Tdata for sections in PE files. */ |
252b5132 RH |
227 | |
228 | struct pei_section_tdata | |
229 | { | |
230 | /* The virtual size of the section. */ | |
231 | bfd_size_type virt_size; | |
8d3ad4e1 ILT |
232 | /* The PE section flags. */ |
233 | long pe_flags; | |
252b5132 RH |
234 | }; |
235 | ||
236 | /* An accessor macro for the pei_section_tdata structure. */ | |
237 | #define pei_section_data(abfd, sec) \ | |
238 | ((struct pei_section_tdata *) coff_section_data ((abfd), (sec))->tdata) | |
239 | ||
240 | /* COFF linker hash table entries. */ | |
241 | ||
242 | struct coff_link_hash_entry | |
243 | { | |
244 | struct bfd_link_hash_entry root; | |
245 | ||
246 | /* Symbol index in output file. Set to -1 initially. Set to -2 if | |
247 | there is a reloc against this symbol. */ | |
248 | long indx; | |
249 | ||
250 | /* Symbol type. */ | |
251 | unsigned short type; | |
252 | ||
253 | /* Symbol class. */ | |
254 | unsigned char class; | |
255 | ||
256 | /* Number of auxiliary entries. */ | |
257 | char numaux; | |
258 | ||
259 | /* BFD to take auxiliary entries from. */ | |
260 | bfd *auxbfd; | |
261 | ||
262 | /* Pointer to array of auxiliary entries, if any. */ | |
263 | union internal_auxent *aux; | |
7fd9c191 ILT |
264 | |
265 | /* Flag word; legal values follow. */ | |
266 | unsigned short coff_link_hash_flags; | |
267 | /* Symbol is a PE section symbol. */ | |
268 | #define COFF_LINK_HASH_PE_SECTION_SYMBOL (01) | |
252b5132 RH |
269 | }; |
270 | ||
271 | /* COFF linker hash table. */ | |
272 | ||
273 | struct coff_link_hash_table | |
274 | { | |
275 | struct bfd_link_hash_table root; | |
276 | /* A pointer to information used to link stabs in sections. */ | |
3722b82f | 277 | struct stab_info stab_info; |
252b5132 RH |
278 | }; |
279 | ||
280 | /* Look up an entry in a COFF linker hash table. */ | |
281 | ||
282 | #define coff_link_hash_lookup(table, string, create, copy, follow) \ | |
283 | ((struct coff_link_hash_entry *) \ | |
284 | bfd_link_hash_lookup (&(table)->root, (string), (create), \ | |
285 | (copy), (follow))) | |
286 | ||
287 | /* Traverse a COFF linker hash table. */ | |
288 | ||
289 | #define coff_link_hash_traverse(table, func, info) \ | |
290 | (bfd_link_hash_traverse \ | |
291 | (&(table)->root, \ | |
7920ce38 | 292 | (bfd_boolean (*) (struct bfd_link_hash_entry *, void *)) (func), \ |
252b5132 RH |
293 | (info))) |
294 | ||
295 | /* Get the COFF linker hash table from a link_info structure. */ | |
296 | ||
297 | #define coff_hash_table(p) ((struct coff_link_hash_table *) ((p)->hash)) | |
298 | ||
299 | /* Functions in coffgen.c. */ | |
dc810e39 | 300 | extern const bfd_target *coff_object_p |
7920ce38 | 301 | (bfd *); |
198beae2 | 302 | extern struct bfd_section *coff_section_from_bfd_index |
7920ce38 | 303 | (bfd *, int); |
dc810e39 | 304 | extern long coff_get_symtab_upper_bound |
7920ce38 | 305 | (bfd *); |
6cee3f79 | 306 | extern long coff_canonicalize_symtab |
7920ce38 | 307 | (bfd *, asymbol **); |
dc810e39 | 308 | extern int coff_count_linenumbers |
7920ce38 | 309 | (bfd *); |
dc810e39 | 310 | extern struct coff_symbol_struct *coff_symbol_from |
7920ce38 | 311 | (bfd *, asymbol *); |
b34976b6 | 312 | extern bfd_boolean coff_renumber_symbols |
7920ce38 | 313 | (bfd *, int *); |
dc810e39 | 314 | extern void coff_mangle_symbols |
7920ce38 | 315 | (bfd *); |
b34976b6 | 316 | extern bfd_boolean coff_write_symbols |
7920ce38 | 317 | (bfd *); |
b34976b6 | 318 | extern bfd_boolean coff_write_linenumbers |
7920ce38 | 319 | (bfd *); |
dc810e39 | 320 | extern alent *coff_get_lineno |
7920ce38 | 321 | (bfd *, asymbol *); |
dc810e39 | 322 | extern asymbol *coff_section_symbol |
7920ce38 | 323 | (bfd *, char *); |
b34976b6 | 324 | extern bfd_boolean _bfd_coff_get_external_symbols |
7920ce38 | 325 | (bfd *); |
dc810e39 | 326 | extern const char *_bfd_coff_read_string_table |
7920ce38 | 327 | (bfd *); |
b34976b6 | 328 | extern bfd_boolean _bfd_coff_free_symbols |
7920ce38 | 329 | (bfd *); |
dc810e39 | 330 | extern struct coff_ptr_struct *coff_get_normalized_symtab |
7920ce38 | 331 | (bfd *); |
dc810e39 | 332 | extern long coff_get_reloc_upper_bound |
7920ce38 | 333 | (bfd *, sec_ptr); |
dc810e39 | 334 | extern asymbol *coff_make_empty_symbol |
7920ce38 | 335 | (bfd *); |
dc810e39 | 336 | extern void coff_print_symbol |
7920ce38 | 337 | (bfd *, void * filep, asymbol *, bfd_print_symbol_type); |
dc810e39 | 338 | extern void coff_get_symbol_info |
7920ce38 | 339 | (bfd *, asymbol *, symbol_info *ret); |
b34976b6 | 340 | extern bfd_boolean _bfd_coff_is_local_label_name |
7920ce38 | 341 | (bfd *, const char *); |
dc810e39 | 342 | extern asymbol *coff_bfd_make_debug_symbol |
7920ce38 | 343 | (bfd *, void *, unsigned long); |
b34976b6 | 344 | extern bfd_boolean coff_find_nearest_line |
7920ce38 NC |
345 | (bfd *, asection *, asymbol **, bfd_vma, const char **, |
346 | const char **, unsigned int *); | |
4ab527b0 FF |
347 | extern bfd_boolean coff_find_inliner_info |
348 | (bfd *, const char **, const char **, unsigned int *); | |
dc810e39 | 349 | extern int coff_sizeof_headers |
a6b96beb | 350 | (bfd *, struct bfd_link_info *); |
b34976b6 | 351 | extern bfd_boolean bfd_coff_reloc16_relax_section |
7920ce38 | 352 | (bfd *, asection *, struct bfd_link_info *, bfd_boolean *); |
252b5132 | 353 | extern bfd_byte *bfd_coff_reloc16_get_relocated_section_contents |
7920ce38 NC |
354 | (bfd *, struct bfd_link_info *, struct bfd_link_order *, |
355 | bfd_byte *, bfd_boolean, asymbol **); | |
dc810e39 | 356 | extern bfd_vma bfd_coff_reloc16_get_value |
7920ce38 | 357 | (arelent *, struct bfd_link_info *, asection *); |
dc810e39 | 358 | extern void bfd_perform_slip |
7920ce38 | 359 | (bfd *, unsigned int, asection *, bfd_vma); |
252b5132 RH |
360 | |
361 | /* Functions and types in cofflink.c. */ | |
362 | ||
116c20d2 | 363 | #define STRING_SIZE_SIZE 4 |
252b5132 RH |
364 | |
365 | /* We use a hash table to merge identical enum, struct, and union | |
366 | definitions in the linker. */ | |
367 | ||
368 | /* Information we keep for a single element (an enum value, a | |
369 | structure or union field) in the debug merge hash table. */ | |
370 | ||
371 | struct coff_debug_merge_element | |
372 | { | |
373 | /* Next element. */ | |
374 | struct coff_debug_merge_element *next; | |
375 | ||
376 | /* Name. */ | |
377 | const char *name; | |
378 | ||
379 | /* Type. */ | |
380 | unsigned int type; | |
381 | ||
382 | /* Symbol index for complex type. */ | |
383 | long tagndx; | |
384 | }; | |
385 | ||
386 | /* A linked list of debug merge entries for a given name. */ | |
387 | ||
388 | struct coff_debug_merge_type | |
389 | { | |
390 | /* Next type with the same name. */ | |
391 | struct coff_debug_merge_type *next; | |
392 | ||
393 | /* Class of type. */ | |
394 | int class; | |
395 | ||
396 | /* Symbol index where this type is defined. */ | |
397 | long indx; | |
398 | ||
399 | /* List of elements. */ | |
400 | struct coff_debug_merge_element *elements; | |
401 | }; | |
402 | ||
403 | /* Information we store in the debug merge hash table. */ | |
404 | ||
405 | struct coff_debug_merge_hash_entry | |
406 | { | |
407 | struct bfd_hash_entry root; | |
408 | ||
409 | /* A list of types with this name. */ | |
410 | struct coff_debug_merge_type *types; | |
411 | }; | |
412 | ||
413 | /* The debug merge hash table. */ | |
414 | ||
415 | struct coff_debug_merge_hash_table | |
416 | { | |
417 | struct bfd_hash_table root; | |
418 | }; | |
419 | ||
420 | /* Initialize a COFF debug merge hash table. */ | |
421 | ||
422 | #define coff_debug_merge_hash_table_init(table) \ | |
66eb6687 AM |
423 | (bfd_hash_table_init (&(table)->root, _bfd_coff_debug_merge_hash_newfunc, \ |
424 | sizeof (struct coff_debug_merge_hash_entry))) | |
252b5132 RH |
425 | |
426 | /* Free a COFF debug merge hash table. */ | |
427 | ||
428 | #define coff_debug_merge_hash_table_free(table) \ | |
429 | (bfd_hash_table_free (&(table)->root)) | |
430 | ||
431 | /* Look up an entry in a COFF debug merge hash table. */ | |
432 | ||
433 | #define coff_debug_merge_hash_lookup(table, string, create, copy) \ | |
434 | ((struct coff_debug_merge_hash_entry *) \ | |
435 | bfd_hash_lookup (&(table)->root, (string), (create), (copy))) | |
436 | ||
437 | /* Information we keep for each section in the output file when doing | |
1049f94e | 438 | a relocatable link. */ |
252b5132 RH |
439 | |
440 | struct coff_link_section_info | |
441 | { | |
442 | /* The relocs to be output. */ | |
443 | struct internal_reloc *relocs; | |
444 | /* For each reloc against a global symbol whose index was not known | |
445 | when the reloc was handled, the global hash table entry. */ | |
446 | struct coff_link_hash_entry **rel_hashes; | |
447 | }; | |
448 | ||
449 | /* Information that we pass around while doing the final link step. */ | |
450 | ||
451 | struct coff_final_link_info | |
452 | { | |
453 | /* General link information. */ | |
454 | struct bfd_link_info *info; | |
455 | /* Output BFD. */ | |
456 | bfd *output_bfd; | |
457 | /* Used to indicate failure in traversal routine. */ | |
b34976b6 | 458 | bfd_boolean failed; |
252b5132 RH |
459 | /* If doing "task linking" set only during the time when we want the |
460 | global symbol writer to convert the storage class of defined global | |
461 | symbols from global to static. */ | |
b34976b6 | 462 | bfd_boolean global_to_static; |
252b5132 RH |
463 | /* Hash table for long symbol names. */ |
464 | struct bfd_strtab_hash *strtab; | |
1049f94e | 465 | /* When doing a relocatable link, an array of information kept for |
252b5132 RH |
466 | each output section, indexed by the target_index field. */ |
467 | struct coff_link_section_info *section_info; | |
468 | /* Symbol index of last C_FILE symbol (-1 if none). */ | |
469 | long last_file_index; | |
470 | /* Contents of last C_FILE symbol. */ | |
471 | struct internal_syment last_file; | |
472 | /* Symbol index of first aux entry of last .bf symbol with an empty | |
473 | endndx field (-1 if none). */ | |
474 | long last_bf_index; | |
475 | /* Contents of last_bf_index aux entry. */ | |
476 | union internal_auxent last_bf; | |
477 | /* Hash table used to merge debug information. */ | |
478 | struct coff_debug_merge_hash_table debug_merge; | |
479 | /* Buffer large enough to hold swapped symbols of any input file. */ | |
480 | struct internal_syment *internal_syms; | |
481 | /* Buffer large enough to hold sections of symbols of any input file. */ | |
482 | asection **sec_ptrs; | |
483 | /* Buffer large enough to hold output indices of symbols of any | |
484 | input file. */ | |
485 | long *sym_indices; | |
486 | /* Buffer large enough to hold output symbols for any input file. */ | |
487 | bfd_byte *outsyms; | |
488 | /* Buffer large enough to hold external line numbers for any input | |
489 | section. */ | |
490 | bfd_byte *linenos; | |
491 | /* Buffer large enough to hold any input section. */ | |
492 | bfd_byte *contents; | |
493 | /* Buffer large enough to hold external relocs of any input section. */ | |
494 | bfd_byte *external_relocs; | |
495 | /* Buffer large enough to hold swapped relocs of any input section. */ | |
496 | struct internal_reloc *internal_relocs; | |
497 | }; | |
498 | ||
5dccc1dd ILT |
499 | /* Most COFF variants have no way to record the alignment of a |
500 | section. This struct is used to set a specific alignment based on | |
501 | the name of the section. */ | |
502 | ||
503 | struct coff_section_alignment_entry | |
504 | { | |
505 | /* The section name. */ | |
506 | const char *name; | |
507 | ||
508 | /* This is either (unsigned int) -1, indicating that the section | |
509 | name must match exactly, or it is the number of letters which | |
510 | must match at the start of the name. */ | |
511 | unsigned int comparison_length; | |
512 | ||
513 | /* These macros may be used to fill in the first two fields in a | |
514 | structure initialization. */ | |
515 | #define COFF_SECTION_NAME_EXACT_MATCH(name) (name), ((unsigned int) -1) | |
516 | #define COFF_SECTION_NAME_PARTIAL_MATCH(name) (name), (sizeof (name) - 1) | |
517 | ||
518 | /* Only use this entry if the default section alignment for this | |
519 | target is at least that much (as a power of two). If this field | |
520 | is COFF_ALIGNMENT_FIELD_EMPTY, it should be ignored. */ | |
521 | unsigned int default_alignment_min; | |
522 | ||
523 | /* Only use this entry if the default section alignment for this | |
524 | target is no greater than this (as a power of two). If this | |
525 | field is COFF_ALIGNMENT_FIELD_EMPTY, it should be ignored. */ | |
526 | unsigned int default_alignment_max; | |
527 | ||
528 | #define COFF_ALIGNMENT_FIELD_EMPTY ((unsigned int) -1) | |
529 | ||
530 | /* The desired alignment for this section (as a power of two). */ | |
531 | unsigned int alignment_power; | |
532 | }; | |
533 | ||
252b5132 | 534 | extern struct bfd_hash_entry *_bfd_coff_link_hash_newfunc |
7920ce38 | 535 | (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); |
b34976b6 | 536 | extern bfd_boolean _bfd_coff_link_hash_table_init |
7920ce38 NC |
537 | (struct coff_link_hash_table *, bfd *, |
538 | struct bfd_hash_entry *(*) (struct bfd_hash_entry *, | |
539 | struct bfd_hash_table *, | |
66eb6687 AM |
540 | const char *), |
541 | unsigned int); | |
252b5132 | 542 | extern struct bfd_link_hash_table *_bfd_coff_link_hash_table_create |
7920ce38 | 543 | (bfd *); |
252b5132 | 544 | extern const char *_bfd_coff_internal_syment_name |
7920ce38 | 545 | (bfd *, const struct internal_syment *, char *); |
b34976b6 | 546 | extern bfd_boolean _bfd_coff_link_add_symbols |
7920ce38 | 547 | (bfd *, struct bfd_link_info *); |
b34976b6 | 548 | extern bfd_boolean _bfd_coff_final_link |
7920ce38 | 549 | (bfd *, struct bfd_link_info *); |
252b5132 | 550 | extern struct internal_reloc *_bfd_coff_read_internal_relocs |
7920ce38 NC |
551 | (bfd *, asection *, bfd_boolean, bfd_byte *, bfd_boolean, |
552 | struct internal_reloc *); | |
b34976b6 | 553 | extern bfd_boolean _bfd_coff_generic_relocate_section |
7920ce38 NC |
554 | (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
555 | struct internal_reloc *, struct internal_syment *, asection **); | |
252b5132 | 556 | extern struct bfd_hash_entry *_bfd_coff_debug_merge_hash_newfunc |
7920ce38 | 557 | (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); |
b34976b6 | 558 | extern bfd_boolean _bfd_coff_write_global_sym |
7920ce38 | 559 | (struct coff_link_hash_entry *, void *); |
b34976b6 | 560 | extern bfd_boolean _bfd_coff_write_task_globals |
7920ce38 | 561 | (struct coff_link_hash_entry *, void *); |
b34976b6 | 562 | extern bfd_boolean _bfd_coff_link_input_bfd |
7920ce38 | 563 | (struct coff_final_link_info *, bfd *); |
b34976b6 | 564 | extern bfd_boolean _bfd_coff_reloc_link_order |
7920ce38 NC |
565 | (bfd *, struct coff_final_link_info *, asection *, |
566 | struct bfd_link_order *); | |
252b5132 RH |
567 | |
568 | ||
569 | #define coff_get_section_contents_in_window \ | |
570 | _bfd_generic_get_section_contents_in_window | |
571 | ||
572 | /* Functions in xcofflink.c. */ | |
573 | ||
dc810e39 | 574 | extern long _bfd_xcoff_get_dynamic_symtab_upper_bound |
7920ce38 | 575 | (bfd *); |
252b5132 | 576 | extern long _bfd_xcoff_canonicalize_dynamic_symtab |
7920ce38 | 577 | (bfd *, asymbol **); |
dc810e39 | 578 | extern long _bfd_xcoff_get_dynamic_reloc_upper_bound |
7920ce38 | 579 | (bfd *); |
252b5132 | 580 | extern long _bfd_xcoff_canonicalize_dynamic_reloc |
7920ce38 | 581 | (bfd *, arelent **, asymbol **); |
252b5132 | 582 | extern struct bfd_link_hash_table *_bfd_xcoff_bfd_link_hash_table_create |
7920ce38 | 583 | (bfd *); |
e2d34d7d | 584 | extern void _bfd_xcoff_bfd_link_hash_table_free |
7920ce38 | 585 | (struct bfd_link_hash_table *); |
b34976b6 | 586 | extern bfd_boolean _bfd_xcoff_bfd_link_add_symbols |
7920ce38 | 587 | (bfd *, struct bfd_link_info *); |
b34976b6 | 588 | extern bfd_boolean _bfd_xcoff_bfd_final_link |
7920ce38 | 589 | (bfd *, struct bfd_link_info *); |
3023e3f6 RS |
590 | extern bfd_boolean _bfd_xcoff_define_common_symbol |
591 | (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *); | |
b34976b6 | 592 | extern bfd_boolean _bfd_ppc_xcoff_relocate_section |
7920ce38 NC |
593 | (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
594 | struct internal_reloc *, struct internal_syment *, asection **); | |
252b5132 | 595 | |
88183869 | 596 | /* Functions in coff-ppc.c. FIXME: These are called by pe.em in the |
252b5132 RH |
597 | linker, and so should start with bfd and be declared in bfd.h. */ |
598 | ||
b34976b6 | 599 | extern bfd_boolean ppc_allocate_toc_section |
7920ce38 | 600 | (struct bfd_link_info *); |
b34976b6 | 601 | extern bfd_boolean ppc_process_before_allocation |
7920ce38 | 602 | (bfd *, struct bfd_link_info *); |
252b5132 | 603 |