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 | ||
9bf609ec JK |
109 | /* coff-stgo32 EXE stub header after BFD tdata has been allocated. Its data |
110 | is kept in internal_filehdr.go32stub beforehand. */ | |
111 | char *go32stub; | |
252b5132 RH |
112 | } coff_data_type; |
113 | ||
7920ce38 | 114 | /* Tdata for pe image files. */ |
252b5132 RH |
115 | typedef struct pe_tdata |
116 | { | |
117 | coff_data_type coff; | |
118 | struct internal_extra_pe_aouthdr pe_opthdr; | |
119 | int dll; | |
120 | int has_reloc_section; | |
441f34fa | 121 | int dont_strip_reloc; |
7920ce38 | 122 | bfd_boolean (*in_reloc_p) (bfd *, reloc_howto_type *); |
252b5132 RH |
123 | flagword real_flags; |
124 | } pe_data_type; | |
125 | ||
126 | #define pe_data(bfd) ((bfd)->tdata.pe_obj_data) | |
127 | ||
128 | /* Tdata for XCOFF files. */ | |
129 | ||
130 | struct xcoff_tdata | |
131 | { | |
132 | /* Basic COFF information. */ | |
133 | coff_data_type coff; | |
134 | ||
b34976b6 AM |
135 | /* TRUE if this is an XCOFF64 file. */ |
136 | bfd_boolean xcoff64; | |
a2fdf270 | 137 | |
b34976b6 AM |
138 | /* TRUE if a large a.out header should be generated. */ |
139 | bfd_boolean full_aouthdr; | |
252b5132 RH |
140 | |
141 | /* TOC value. */ | |
142 | bfd_vma toc; | |
143 | ||
144 | /* Index of section holding TOC. */ | |
145 | int sntoc; | |
146 | ||
147 | /* Index of section holding entry point. */ | |
148 | int snentry; | |
149 | ||
150 | /* .text alignment from optional header. */ | |
151 | int text_align_power; | |
152 | ||
153 | /* .data alignment from optional header. */ | |
154 | int data_align_power; | |
155 | ||
156 | /* modtype from optional header. */ | |
157 | short modtype; | |
158 | ||
159 | /* cputype from optional header. */ | |
160 | short cputype; | |
161 | ||
162 | /* maxdata from optional header. */ | |
beb1bf64 | 163 | bfd_vma maxdata; |
252b5132 RH |
164 | |
165 | /* maxstack from optional header. */ | |
beb1bf64 | 166 | bfd_vma maxstack; |
252b5132 RH |
167 | |
168 | /* Used by the XCOFF backend linker. */ | |
169 | asection **csects; | |
e450936a | 170 | long *debug_indices; |
3df13c4a | 171 | unsigned int *lineno_counts; |
252b5132 RH |
172 | unsigned int import_file_id; |
173 | }; | |
174 | ||
175 | #define xcoff_data(abfd) ((abfd)->tdata.xcoff_obj_data) | |
176 | ||
08da05b0 | 177 | /* We take the address of the first element of an asymbol to ensure that the |
7920ce38 | 178 | macro is only ever applied to an asymbol. */ |
252b5132 RH |
179 | #define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd))) |
180 | ||
181 | /* The used_by_bfd field of a section may be set to a pointer to this | |
182 | structure. */ | |
183 | ||
184 | struct coff_section_tdata | |
185 | { | |
186 | /* The relocs, swapped into COFF internal form. This may be NULL. */ | |
187 | struct internal_reloc *relocs; | |
b34976b6 AM |
188 | /* If this is TRUE, the relocs entry may not be freed. */ |
189 | bfd_boolean keep_relocs; | |
252b5132 RH |
190 | /* The section contents. This may be NULL. */ |
191 | bfd_byte *contents; | |
b34976b6 AM |
192 | /* If this is TRUE, the contents entry may not be freed. */ |
193 | bfd_boolean keep_contents; | |
252b5132 RH |
194 | /* Information cached by coff_find_nearest_line. */ |
195 | bfd_vma offset; | |
196 | unsigned int i; | |
197 | const char *function; | |
082b7297 L |
198 | /* Optional information about a COMDAT entry; NULL if not COMDAT. */ |
199 | struct coff_comdat_info *comdat; | |
252b5132 RH |
200 | int line_base; |
201 | /* A pointer used for .stab linking optimizations. */ | |
7920ce38 | 202 | void * stab_info; |
252b5132 | 203 | /* Available for individual backends. */ |
7920ce38 | 204 | void * tdata; |
252b5132 RH |
205 | }; |
206 | ||
207 | /* An accessor macro for the coff_section_tdata structure. */ | |
208 | #define coff_section_data(abfd, sec) \ | |
209 | ((struct coff_section_tdata *) (sec)->used_by_bfd) | |
210 | ||
211 | /* Tdata for sections in XCOFF files. This is used by the linker. */ | |
212 | ||
213 | struct xcoff_section_tdata | |
214 | { | |
215 | /* Used for XCOFF csects created by the linker; points to the real | |
216 | XCOFF section which contains this csect. */ | |
217 | asection *enclosing; | |
218 | /* The lineno_count field for the enclosing section, because we are | |
219 | going to clobber it there. */ | |
220 | unsigned int lineno_count; | |
4cc02a02 | 221 | /* The first and last symbol indices for symbols used by this csect. */ |
252b5132 RH |
222 | unsigned long first_symndx; |
223 | unsigned long last_symndx; | |
224 | }; | |
225 | ||
226 | /* An accessor macro the xcoff_section_tdata structure. */ | |
227 | #define xcoff_section_data(abfd, sec) \ | |
228 | ((struct xcoff_section_tdata *) coff_section_data ((abfd), (sec))->tdata) | |
229 | ||
8d3ad4e1 | 230 | /* Tdata for sections in PE files. */ |
252b5132 RH |
231 | |
232 | struct pei_section_tdata | |
233 | { | |
234 | /* The virtual size of the section. */ | |
235 | bfd_size_type virt_size; | |
8d3ad4e1 ILT |
236 | /* The PE section flags. */ |
237 | long pe_flags; | |
252b5132 RH |
238 | }; |
239 | ||
240 | /* An accessor macro for the pei_section_tdata structure. */ | |
241 | #define pei_section_data(abfd, sec) \ | |
242 | ((struct pei_section_tdata *) coff_section_data ((abfd), (sec))->tdata) | |
243 | ||
244 | /* COFF linker hash table entries. */ | |
245 | ||
246 | struct coff_link_hash_entry | |
247 | { | |
248 | struct bfd_link_hash_entry root; | |
249 | ||
250 | /* Symbol index in output file. Set to -1 initially. Set to -2 if | |
251 | there is a reloc against this symbol. */ | |
252 | long indx; | |
253 | ||
254 | /* Symbol type. */ | |
255 | unsigned short type; | |
256 | ||
257 | /* Symbol class. */ | |
96d56e9f | 258 | unsigned char symbol_class; |
252b5132 RH |
259 | |
260 | /* Number of auxiliary entries. */ | |
261 | char numaux; | |
262 | ||
263 | /* BFD to take auxiliary entries from. */ | |
264 | bfd *auxbfd; | |
265 | ||
266 | /* Pointer to array of auxiliary entries, if any. */ | |
267 | union internal_auxent *aux; | |
7fd9c191 ILT |
268 | |
269 | /* Flag word; legal values follow. */ | |
270 | unsigned short coff_link_hash_flags; | |
271 | /* Symbol is a PE section symbol. */ | |
272 | #define COFF_LINK_HASH_PE_SECTION_SYMBOL (01) | |
252b5132 RH |
273 | }; |
274 | ||
275 | /* COFF linker hash table. */ | |
276 | ||
277 | struct coff_link_hash_table | |
278 | { | |
279 | struct bfd_link_hash_table root; | |
280 | /* A pointer to information used to link stabs in sections. */ | |
3722b82f | 281 | struct stab_info stab_info; |
252b5132 RH |
282 | }; |
283 | ||
284 | /* Look up an entry in a COFF linker hash table. */ | |
285 | ||
286 | #define coff_link_hash_lookup(table, string, create, copy, follow) \ | |
287 | ((struct coff_link_hash_entry *) \ | |
288 | bfd_link_hash_lookup (&(table)->root, (string), (create), \ | |
289 | (copy), (follow))) | |
290 | ||
291 | /* Traverse a COFF linker hash table. */ | |
292 | ||
293 | #define coff_link_hash_traverse(table, func, info) \ | |
294 | (bfd_link_hash_traverse \ | |
295 | (&(table)->root, \ | |
7920ce38 | 296 | (bfd_boolean (*) (struct bfd_link_hash_entry *, void *)) (func), \ |
252b5132 RH |
297 | (info))) |
298 | ||
299 | /* Get the COFF linker hash table from a link_info structure. */ | |
300 | ||
301 | #define coff_hash_table(p) ((struct coff_link_hash_table *) ((p)->hash)) | |
302 | ||
303 | /* Functions in coffgen.c. */ | |
dc810e39 | 304 | extern const bfd_target *coff_object_p |
7920ce38 | 305 | (bfd *); |
198beae2 | 306 | extern struct bfd_section *coff_section_from_bfd_index |
7920ce38 | 307 | (bfd *, int); |
dc810e39 | 308 | extern long coff_get_symtab_upper_bound |
7920ce38 | 309 | (bfd *); |
6cee3f79 | 310 | extern long coff_canonicalize_symtab |
7920ce38 | 311 | (bfd *, asymbol **); |
dc810e39 | 312 | extern int coff_count_linenumbers |
7920ce38 | 313 | (bfd *); |
dc810e39 | 314 | extern struct coff_symbol_struct *coff_symbol_from |
7920ce38 | 315 | (bfd *, asymbol *); |
b34976b6 | 316 | extern bfd_boolean coff_renumber_symbols |
7920ce38 | 317 | (bfd *, int *); |
dc810e39 | 318 | extern void coff_mangle_symbols |
7920ce38 | 319 | (bfd *); |
b34976b6 | 320 | extern bfd_boolean coff_write_symbols |
7920ce38 | 321 | (bfd *); |
b34976b6 | 322 | extern bfd_boolean coff_write_linenumbers |
7920ce38 | 323 | (bfd *); |
dc810e39 | 324 | extern alent *coff_get_lineno |
7920ce38 | 325 | (bfd *, asymbol *); |
dc810e39 | 326 | extern asymbol *coff_section_symbol |
7920ce38 | 327 | (bfd *, char *); |
b34976b6 | 328 | extern bfd_boolean _bfd_coff_get_external_symbols |
7920ce38 | 329 | (bfd *); |
dc810e39 | 330 | extern const char *_bfd_coff_read_string_table |
7920ce38 | 331 | (bfd *); |
b34976b6 | 332 | extern bfd_boolean _bfd_coff_free_symbols |
7920ce38 | 333 | (bfd *); |
dc810e39 | 334 | extern struct coff_ptr_struct *coff_get_normalized_symtab |
7920ce38 | 335 | (bfd *); |
dc810e39 | 336 | extern long coff_get_reloc_upper_bound |
7920ce38 | 337 | (bfd *, sec_ptr); |
dc810e39 | 338 | extern asymbol *coff_make_empty_symbol |
7920ce38 | 339 | (bfd *); |
dc810e39 | 340 | extern void coff_print_symbol |
7920ce38 | 341 | (bfd *, void * filep, asymbol *, bfd_print_symbol_type); |
dc810e39 | 342 | extern void coff_get_symbol_info |
7920ce38 | 343 | (bfd *, asymbol *, symbol_info *ret); |
b34976b6 | 344 | extern bfd_boolean _bfd_coff_is_local_label_name |
7920ce38 | 345 | (bfd *, const char *); |
dc810e39 | 346 | extern asymbol *coff_bfd_make_debug_symbol |
7920ce38 | 347 | (bfd *, void *, unsigned long); |
b34976b6 | 348 | extern bfd_boolean coff_find_nearest_line |
7920ce38 NC |
349 | (bfd *, asection *, asymbol **, bfd_vma, const char **, |
350 | const char **, unsigned int *); | |
4ab527b0 FF |
351 | extern bfd_boolean coff_find_inliner_info |
352 | (bfd *, const char **, const char **, unsigned int *); | |
dc810e39 | 353 | extern int coff_sizeof_headers |
a6b96beb | 354 | (bfd *, struct bfd_link_info *); |
b34976b6 | 355 | extern bfd_boolean bfd_coff_reloc16_relax_section |
7920ce38 | 356 | (bfd *, asection *, struct bfd_link_info *, bfd_boolean *); |
252b5132 | 357 | extern bfd_byte *bfd_coff_reloc16_get_relocated_section_contents |
7920ce38 NC |
358 | (bfd *, struct bfd_link_info *, struct bfd_link_order *, |
359 | bfd_byte *, bfd_boolean, asymbol **); | |
dc810e39 | 360 | extern bfd_vma bfd_coff_reloc16_get_value |
7920ce38 | 361 | (arelent *, struct bfd_link_info *, asection *); |
dc810e39 | 362 | extern void bfd_perform_slip |
7920ce38 | 363 | (bfd *, unsigned int, asection *, bfd_vma); |
252b5132 RH |
364 | |
365 | /* Functions and types in cofflink.c. */ | |
366 | ||
116c20d2 | 367 | #define STRING_SIZE_SIZE 4 |
252b5132 RH |
368 | |
369 | /* We use a hash table to merge identical enum, struct, and union | |
370 | definitions in the linker. */ | |
371 | ||
372 | /* Information we keep for a single element (an enum value, a | |
373 | structure or union field) in the debug merge hash table. */ | |
374 | ||
375 | struct coff_debug_merge_element | |
376 | { | |
377 | /* Next element. */ | |
378 | struct coff_debug_merge_element *next; | |
379 | ||
380 | /* Name. */ | |
381 | const char *name; | |
382 | ||
383 | /* Type. */ | |
384 | unsigned int type; | |
385 | ||
386 | /* Symbol index for complex type. */ | |
387 | long tagndx; | |
388 | }; | |
389 | ||
390 | /* A linked list of debug merge entries for a given name. */ | |
391 | ||
392 | struct coff_debug_merge_type | |
393 | { | |
394 | /* Next type with the same name. */ | |
395 | struct coff_debug_merge_type *next; | |
396 | ||
397 | /* Class of type. */ | |
96d56e9f | 398 | int type_class; |
252b5132 RH |
399 | |
400 | /* Symbol index where this type is defined. */ | |
401 | long indx; | |
402 | ||
403 | /* List of elements. */ | |
404 | struct coff_debug_merge_element *elements; | |
405 | }; | |
406 | ||
407 | /* Information we store in the debug merge hash table. */ | |
408 | ||
409 | struct coff_debug_merge_hash_entry | |
410 | { | |
411 | struct bfd_hash_entry root; | |
412 | ||
413 | /* A list of types with this name. */ | |
414 | struct coff_debug_merge_type *types; | |
415 | }; | |
416 | ||
417 | /* The debug merge hash table. */ | |
418 | ||
419 | struct coff_debug_merge_hash_table | |
420 | { | |
421 | struct bfd_hash_table root; | |
422 | }; | |
423 | ||
424 | /* Initialize a COFF debug merge hash table. */ | |
425 | ||
426 | #define coff_debug_merge_hash_table_init(table) \ | |
66eb6687 AM |
427 | (bfd_hash_table_init (&(table)->root, _bfd_coff_debug_merge_hash_newfunc, \ |
428 | sizeof (struct coff_debug_merge_hash_entry))) | |
252b5132 RH |
429 | |
430 | /* Free a COFF debug merge hash table. */ | |
431 | ||
432 | #define coff_debug_merge_hash_table_free(table) \ | |
433 | (bfd_hash_table_free (&(table)->root)) | |
434 | ||
435 | /* Look up an entry in a COFF debug merge hash table. */ | |
436 | ||
437 | #define coff_debug_merge_hash_lookup(table, string, create, copy) \ | |
438 | ((struct coff_debug_merge_hash_entry *) \ | |
439 | bfd_hash_lookup (&(table)->root, (string), (create), (copy))) | |
440 | ||
441 | /* Information we keep for each section in the output file when doing | |
1049f94e | 442 | a relocatable link. */ |
252b5132 RH |
443 | |
444 | struct coff_link_section_info | |
445 | { | |
446 | /* The relocs to be output. */ | |
447 | struct internal_reloc *relocs; | |
448 | /* For each reloc against a global symbol whose index was not known | |
449 | when the reloc was handled, the global hash table entry. */ | |
450 | struct coff_link_hash_entry **rel_hashes; | |
451 | }; | |
452 | ||
453 | /* Information that we pass around while doing the final link step. */ | |
454 | ||
455 | struct coff_final_link_info | |
456 | { | |
457 | /* General link information. */ | |
458 | struct bfd_link_info *info; | |
459 | /* Output BFD. */ | |
460 | bfd *output_bfd; | |
461 | /* Used to indicate failure in traversal routine. */ | |
b34976b6 | 462 | bfd_boolean failed; |
252b5132 RH |
463 | /* If doing "task linking" set only during the time when we want the |
464 | global symbol writer to convert the storage class of defined global | |
465 | symbols from global to static. */ | |
b34976b6 | 466 | bfd_boolean global_to_static; |
252b5132 RH |
467 | /* Hash table for long symbol names. */ |
468 | struct bfd_strtab_hash *strtab; | |
1049f94e | 469 | /* When doing a relocatable link, an array of information kept for |
252b5132 RH |
470 | each output section, indexed by the target_index field. */ |
471 | struct coff_link_section_info *section_info; | |
472 | /* Symbol index of last C_FILE symbol (-1 if none). */ | |
473 | long last_file_index; | |
474 | /* Contents of last C_FILE symbol. */ | |
475 | struct internal_syment last_file; | |
476 | /* Symbol index of first aux entry of last .bf symbol with an empty | |
477 | endndx field (-1 if none). */ | |
478 | long last_bf_index; | |
479 | /* Contents of last_bf_index aux entry. */ | |
480 | union internal_auxent last_bf; | |
481 | /* Hash table used to merge debug information. */ | |
482 | struct coff_debug_merge_hash_table debug_merge; | |
483 | /* Buffer large enough to hold swapped symbols of any input file. */ | |
484 | struct internal_syment *internal_syms; | |
485 | /* Buffer large enough to hold sections of symbols of any input file. */ | |
486 | asection **sec_ptrs; | |
487 | /* Buffer large enough to hold output indices of symbols of any | |
488 | input file. */ | |
489 | long *sym_indices; | |
490 | /* Buffer large enough to hold output symbols for any input file. */ | |
491 | bfd_byte *outsyms; | |
492 | /* Buffer large enough to hold external line numbers for any input | |
493 | section. */ | |
494 | bfd_byte *linenos; | |
495 | /* Buffer large enough to hold any input section. */ | |
496 | bfd_byte *contents; | |
497 | /* Buffer large enough to hold external relocs of any input section. */ | |
498 | bfd_byte *external_relocs; | |
499 | /* Buffer large enough to hold swapped relocs of any input section. */ | |
500 | struct internal_reloc *internal_relocs; | |
501 | }; | |
502 | ||
5dccc1dd ILT |
503 | /* Most COFF variants have no way to record the alignment of a |
504 | section. This struct is used to set a specific alignment based on | |
505 | the name of the section. */ | |
506 | ||
507 | struct coff_section_alignment_entry | |
508 | { | |
509 | /* The section name. */ | |
510 | const char *name; | |
511 | ||
512 | /* This is either (unsigned int) -1, indicating that the section | |
513 | name must match exactly, or it is the number of letters which | |
514 | must match at the start of the name. */ | |
515 | unsigned int comparison_length; | |
516 | ||
517 | /* These macros may be used to fill in the first two fields in a | |
518 | structure initialization. */ | |
519 | #define COFF_SECTION_NAME_EXACT_MATCH(name) (name), ((unsigned int) -1) | |
520 | #define COFF_SECTION_NAME_PARTIAL_MATCH(name) (name), (sizeof (name) - 1) | |
521 | ||
522 | /* Only use this entry if the default section alignment for this | |
523 | target is at least that much (as a power of two). If this field | |
524 | is COFF_ALIGNMENT_FIELD_EMPTY, it should be ignored. */ | |
525 | unsigned int default_alignment_min; | |
526 | ||
527 | /* Only use this entry if the default section alignment for this | |
528 | target is no greater than this (as a power of two). If this | |
529 | field is COFF_ALIGNMENT_FIELD_EMPTY, it should be ignored. */ | |
530 | unsigned int default_alignment_max; | |
531 | ||
532 | #define COFF_ALIGNMENT_FIELD_EMPTY ((unsigned int) -1) | |
533 | ||
534 | /* The desired alignment for this section (as a power of two). */ | |
535 | unsigned int alignment_power; | |
536 | }; | |
537 | ||
252b5132 | 538 | extern struct bfd_hash_entry *_bfd_coff_link_hash_newfunc |
7920ce38 | 539 | (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); |
b34976b6 | 540 | extern bfd_boolean _bfd_coff_link_hash_table_init |
7920ce38 NC |
541 | (struct coff_link_hash_table *, bfd *, |
542 | struct bfd_hash_entry *(*) (struct bfd_hash_entry *, | |
543 | struct bfd_hash_table *, | |
66eb6687 AM |
544 | const char *), |
545 | unsigned int); | |
252b5132 | 546 | extern struct bfd_link_hash_table *_bfd_coff_link_hash_table_create |
7920ce38 | 547 | (bfd *); |
252b5132 | 548 | extern const char *_bfd_coff_internal_syment_name |
7920ce38 | 549 | (bfd *, const struct internal_syment *, char *); |
b34976b6 | 550 | extern bfd_boolean _bfd_coff_link_add_symbols |
7920ce38 | 551 | (bfd *, struct bfd_link_info *); |
b34976b6 | 552 | extern bfd_boolean _bfd_coff_final_link |
7920ce38 | 553 | (bfd *, struct bfd_link_info *); |
252b5132 | 554 | extern struct internal_reloc *_bfd_coff_read_internal_relocs |
7920ce38 NC |
555 | (bfd *, asection *, bfd_boolean, bfd_byte *, bfd_boolean, |
556 | struct internal_reloc *); | |
b34976b6 | 557 | extern bfd_boolean _bfd_coff_generic_relocate_section |
7920ce38 NC |
558 | (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
559 | struct internal_reloc *, struct internal_syment *, asection **); | |
252b5132 | 560 | extern struct bfd_hash_entry *_bfd_coff_debug_merge_hash_newfunc |
7920ce38 | 561 | (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); |
b34976b6 | 562 | extern bfd_boolean _bfd_coff_write_global_sym |
7920ce38 | 563 | (struct coff_link_hash_entry *, void *); |
b34976b6 | 564 | extern bfd_boolean _bfd_coff_write_task_globals |
7920ce38 | 565 | (struct coff_link_hash_entry *, void *); |
b34976b6 | 566 | extern bfd_boolean _bfd_coff_link_input_bfd |
7920ce38 | 567 | (struct coff_final_link_info *, bfd *); |
b34976b6 | 568 | extern bfd_boolean _bfd_coff_reloc_link_order |
7920ce38 NC |
569 | (bfd *, struct coff_final_link_info *, asection *, |
570 | struct bfd_link_order *); | |
252b5132 RH |
571 | |
572 | ||
573 | #define coff_get_section_contents_in_window \ | |
574 | _bfd_generic_get_section_contents_in_window | |
575 | ||
576 | /* Functions in xcofflink.c. */ | |
577 | ||
dc810e39 | 578 | extern long _bfd_xcoff_get_dynamic_symtab_upper_bound |
7920ce38 | 579 | (bfd *); |
252b5132 | 580 | extern long _bfd_xcoff_canonicalize_dynamic_symtab |
7920ce38 | 581 | (bfd *, asymbol **); |
dc810e39 | 582 | extern long _bfd_xcoff_get_dynamic_reloc_upper_bound |
7920ce38 | 583 | (bfd *); |
252b5132 | 584 | extern long _bfd_xcoff_canonicalize_dynamic_reloc |
7920ce38 | 585 | (bfd *, arelent **, asymbol **); |
252b5132 | 586 | extern struct bfd_link_hash_table *_bfd_xcoff_bfd_link_hash_table_create |
7920ce38 | 587 | (bfd *); |
e2d34d7d | 588 | extern void _bfd_xcoff_bfd_link_hash_table_free |
7920ce38 | 589 | (struct bfd_link_hash_table *); |
b34976b6 | 590 | extern bfd_boolean _bfd_xcoff_bfd_link_add_symbols |
7920ce38 | 591 | (bfd *, struct bfd_link_info *); |
b34976b6 | 592 | extern bfd_boolean _bfd_xcoff_bfd_final_link |
7920ce38 | 593 | (bfd *, struct bfd_link_info *); |
3023e3f6 RS |
594 | extern bfd_boolean _bfd_xcoff_define_common_symbol |
595 | (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *); | |
b34976b6 | 596 | extern bfd_boolean _bfd_ppc_xcoff_relocate_section |
7920ce38 NC |
597 | (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
598 | struct internal_reloc *, struct internal_syment *, asection **); | |
252b5132 | 599 | |
88183869 | 600 | /* Functions in coff-ppc.c. FIXME: These are called by pe.em in the |
252b5132 RH |
601 | linker, and so should start with bfd and be declared in bfd.h. */ |
602 | ||
b34976b6 | 603 | extern bfd_boolean ppc_allocate_toc_section |
7920ce38 | 604 | (struct bfd_link_info *); |
b34976b6 | 605 | extern bfd_boolean ppc_process_before_allocation |
7920ce38 | 606 | (bfd *, struct bfd_link_info *); |