1 /* BFD COFF object file private structure.
2 Copyright (C) 1990, 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
3 Written by Cygnus Support.
5 ** NOTE: libcoff.h is a GENERATED file. Don't change it; instead,
6 ** change libcoff-in.h or coffcode.h.
8 This file is part of BFD, the Binary File Descriptor library.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
26 /* Object file tdata; access macros */
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)
34 #define obj_relocbase(bfd) (coff_data(bfd)->relocbase)
35 #define obj_raw_syments(bfd) (coff_data(bfd)->raw_syments)
36 #define obj_raw_syment_count(bfd) (coff_data(bfd)->raw_syment_count)
37 #define obj_convert(bfd) (coff_data(bfd)->conversion_table)
38 #define obj_conv_table_size(bfd) (coff_data(bfd)->conv_table_size)
40 #define obj_coff_external_syms(bfd) (coff_data (bfd)->external_syms)
41 #define obj_coff_keep_syms(bfd) (coff_data (bfd)->keep_syms)
42 #define obj_coff_strings(bfd) (coff_data (bfd)->strings)
43 #define obj_coff_keep_strings(bfd) (coff_data (bfd)->keep_strings)
44 #define obj_coff_sym_hashes(bfd) (coff_data (bfd)->sym_hashes)
46 #define obj_coff_local_toc_table(bfd) (coff_data(bfd)->local_toc_sym_map)
48 /* `Tdata' information kept for COFF files. */
50 typedef struct coff_tdata
52 struct coff_symbol_struct
*symbols
; /* symtab for input bfd */
53 unsigned int *conversion_table
;
57 struct coff_ptr_struct
*raw_syments
;
58 unsigned int raw_syment_count
;
60 /* These are only valid once writing has begun */
63 /* These members communicate important constants about the symbol table
64 to GDB's symbol-reading code. These `constants' unfortunately vary
65 from coff implementation to implementation... */
66 unsigned local_n_btmask
;
67 unsigned local_n_btshft
;
68 unsigned local_n_tmask
;
69 unsigned local_n_tshift
;
70 unsigned local_symesz
;
71 unsigned local_auxesz
;
72 unsigned local_linesz
;
74 /* The unswapped external symbols. May be NULL. Read by
75 _bfd_coff_get_external_symbols. */
77 /* If this is true, the external_syms may not be freed. */
80 /* The string table. May be NULL. Read by
81 _bfd_coff_read_string_table. */
83 /* If this is true, the strings may not be freed. */
86 /* is this a PE format coff file */
88 /* Used by the COFF backend linker. */
89 struct coff_link_hash_entry
**sym_hashes
;
91 /* used by the pe linker for PowerPC */
92 int *local_toc_sym_map
;
94 struct bfd_link_info
*link_info
;
96 /* Used by coff_find_nearest_line. */
100 /* Tdata for pe image files. */
101 typedef struct pe_tdata
104 struct internal_extra_pe_aouthdr pe_opthdr
;
106 int has_reloc_section
;
107 boolean (*in_reloc_p
) PARAMS((bfd
*, reloc_howto_type
*));
111 #define pe_data(bfd) ((bfd)->tdata.pe_obj_data)
113 /* Tdata for XCOFF files. */
117 /* Basic COFF information. */
120 /* True if a large a.out header should be generated. */
121 boolean full_aouthdr
;
126 /* Index of section holding TOC. */
129 /* Index of section holding entry point. */
132 /* .text alignment from optional header. */
133 int text_align_power
;
135 /* .data alignment from optional header. */
136 int data_align_power
;
138 /* modtype from optional header. */
141 /* cputype from optional header. */
144 /* maxdata from optional header. */
145 bfd_size_type maxdata
;
147 /* maxstack from optional header. */
148 bfd_size_type maxstack
;
150 /* Used by the XCOFF backend linker. */
152 unsigned long *debug_indices
;
153 unsigned int import_file_id
;
156 #define xcoff_data(abfd) ((abfd)->tdata.xcoff_obj_data)
158 /* We take the address of the first element of a asymbol to ensure that the
159 * macro is only ever applied to an asymbol. */
160 #define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd)))
162 /* The used_by_bfd field of a section may be set to a pointer to this
165 struct coff_section_tdata
167 /* The relocs, swapped into COFF internal form. This may be NULL. */
168 struct internal_reloc
*relocs
;
169 /* If this is true, the relocs entry may not be freed. */
171 /* The section contents. This may be NULL. */
173 /* If this is true, the contents entry may not be freed. */
174 boolean keep_contents
;
175 /* Information cached by coff_find_nearest_line. */
178 const char *function
;
180 /* A pointer used for .stab linking optimizations. */
182 /* Available for individual backends. */
186 /* An accessor macro for the coff_section_tdata structure. */
187 #define coff_section_data(abfd, sec) \
188 ((struct coff_section_tdata *) (sec)->used_by_bfd)
190 /* Tdata for sections in XCOFF files. This is used by the linker. */
192 struct xcoff_section_tdata
194 /* Used for XCOFF csects created by the linker; points to the real
195 XCOFF section which contains this csect. */
197 /* The lineno_count field for the enclosing section, because we are
198 going to clobber it there. */
199 unsigned int lineno_count
;
200 /* The first and one past the last symbol indices for symbols used
202 unsigned long first_symndx
;
203 unsigned long last_symndx
;
206 /* An accessor macro the xcoff_section_tdata structure. */
207 #define xcoff_section_data(abfd, sec) \
208 ((struct xcoff_section_tdata *) coff_section_data ((abfd), (sec))->tdata)
210 /* COFF linker hash table entries. */
212 struct coff_link_hash_entry
214 struct bfd_link_hash_entry root
;
216 /* Symbol index in output file. Set to -1 initially. Set to -2 if
217 there is a reloc against this symbol. */
226 /* Number of auxiliary entries. */
229 /* BFD to take auxiliary entries from. */
232 /* Pointer to array of auxiliary entries, if any. */
233 union internal_auxent
*aux
;
236 /* COFF linker hash table. */
238 struct coff_link_hash_table
240 struct bfd_link_hash_table root
;
241 /* A pointer to information used to link stabs in sections. */
245 /* Look up an entry in a COFF linker hash table. */
247 #define coff_link_hash_lookup(table, string, create, copy, follow) \
248 ((struct coff_link_hash_entry *) \
249 bfd_link_hash_lookup (&(table)->root, (string), (create), \
252 /* Traverse a COFF linker hash table. */
254 #define coff_link_hash_traverse(table, func, info) \
255 (bfd_link_hash_traverse \
257 (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \
260 /* Get the COFF linker hash table from a link_info structure. */
262 #define coff_hash_table(p) ((struct coff_link_hash_table *) ((p)->hash))
264 /* Functions in coffgen.c. */
265 extern const bfd_target
*coff_object_p
PARAMS ((bfd
*));
266 extern struct sec
*coff_section_from_bfd_index
PARAMS ((bfd
*, int));
267 extern long coff_get_symtab_upper_bound
PARAMS ((bfd
*));
268 extern long coff_get_symtab
PARAMS ((bfd
*, asymbol
**));
269 extern int coff_count_linenumbers
PARAMS ((bfd
*));
270 extern struct coff_symbol_struct
*coff_symbol_from
PARAMS ((bfd
*, asymbol
*));
271 extern boolean coff_renumber_symbols
PARAMS ((bfd
*, int *));
272 extern void coff_mangle_symbols
PARAMS ((bfd
*));
273 extern boolean coff_write_symbols
PARAMS ((bfd
*));
274 extern boolean coff_write_linenumbers
PARAMS ((bfd
*));
275 extern alent
*coff_get_lineno
PARAMS ((bfd
*, asymbol
*));
276 extern asymbol
*coff_section_symbol
PARAMS ((bfd
*, char *));
277 extern boolean _bfd_coff_get_external_symbols
PARAMS ((bfd
*));
278 extern const char *_bfd_coff_read_string_table
PARAMS ((bfd
*));
279 extern boolean _bfd_coff_free_symbols
PARAMS ((bfd
*));
280 extern struct coff_ptr_struct
*coff_get_normalized_symtab
PARAMS ((bfd
*));
281 extern long coff_get_reloc_upper_bound
PARAMS ((bfd
*, sec_ptr
));
282 extern asymbol
*coff_make_empty_symbol
PARAMS ((bfd
*));
283 extern void coff_print_symbol
PARAMS ((bfd
*, PTR filep
, asymbol
*,
284 bfd_print_symbol_type how
));
285 extern void coff_get_symbol_info
PARAMS ((bfd
*, asymbol
*,
287 extern asymbol
*coff_bfd_make_debug_symbol
PARAMS ((bfd
*, PTR
,
289 extern boolean coff_find_nearest_line
PARAMS ((bfd
*,
293 CONST
char **filename_ptr
,
294 CONST
char **functionname_ptr
,
295 unsigned int *line_ptr
));
296 extern int coff_sizeof_headers
PARAMS ((bfd
*, boolean reloc
));
297 extern boolean bfd_coff_reloc16_relax_section
298 PARAMS ((bfd
*, asection
*, struct bfd_link_info
*, boolean
*));
299 extern bfd_byte
*bfd_coff_reloc16_get_relocated_section_contents
300 PARAMS ((bfd
*, struct bfd_link_info
*, struct bfd_link_order
*,
301 bfd_byte
*, boolean relocateable
, asymbol
**));
302 extern bfd_vma bfd_coff_reloc16_get_value
PARAMS ((arelent
*,
303 struct bfd_link_info
*,
305 extern void bfd_perform_slip
PARAMS ((bfd
*abfd
, unsigned int slip
,
306 asection
*input_section
,
309 /* Functions and types in cofflink.c. */
311 #define STRING_SIZE_SIZE (4)
313 /* We use a hash table to merge identical enum, struct, and union
314 definitions in the linker. */
316 /* Information we keep for a single element (an enum value, a
317 structure or union field) in the debug merge hash table. */
319 struct coff_debug_merge_element
322 struct coff_debug_merge_element
*next
;
330 /* Symbol index for complex type. */
334 /* A linked list of debug merge entries for a given name. */
336 struct coff_debug_merge_type
338 /* Next type with the same name. */
339 struct coff_debug_merge_type
*next
;
344 /* Symbol index where this type is defined. */
347 /* List of elements. */
348 struct coff_debug_merge_element
*elements
;
351 /* Information we store in the debug merge hash table. */
353 struct coff_debug_merge_hash_entry
355 struct bfd_hash_entry root
;
357 /* A list of types with this name. */
358 struct coff_debug_merge_type
*types
;
361 /* The debug merge hash table. */
363 struct coff_debug_merge_hash_table
365 struct bfd_hash_table root
;
368 /* Initialize a COFF debug merge hash table. */
370 #define coff_debug_merge_hash_table_init(table) \
371 (bfd_hash_table_init (&(table)->root, _bfd_coff_debug_merge_hash_newfunc))
373 /* Free a COFF debug merge hash table. */
375 #define coff_debug_merge_hash_table_free(table) \
376 (bfd_hash_table_free (&(table)->root))
378 /* Look up an entry in a COFF debug merge hash table. */
380 #define coff_debug_merge_hash_lookup(table, string, create, copy) \
381 ((struct coff_debug_merge_hash_entry *) \
382 bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
384 /* Information we keep for each section in the output file when doing
385 a relocateable link. */
387 struct coff_link_section_info
389 /* The relocs to be output. */
390 struct internal_reloc
*relocs
;
391 /* For each reloc against a global symbol whose index was not known
392 when the reloc was handled, the global hash table entry. */
393 struct coff_link_hash_entry
**rel_hashes
;
396 /* Information that we pass around while doing the final link step. */
398 struct coff_final_link_info
400 /* General link information. */
401 struct bfd_link_info
*info
;
404 /* Used to indicate failure in traversal routine. */
406 /* Hash table for long symbol names. */
407 struct bfd_strtab_hash
*strtab
;
408 /* When doing a relocateable link, an array of information kept for
409 each output section, indexed by the target_index field. */
410 struct coff_link_section_info
*section_info
;
411 /* Symbol index of last C_FILE symbol (-1 if none). */
412 long last_file_index
;
413 /* Contents of last C_FILE symbol. */
414 struct internal_syment last_file
;
415 /* Symbol index of first aux entry of last .bf symbol with an empty
416 endndx field (-1 if none). */
418 /* Contents of last_bf_index aux entry. */
419 union internal_auxent last_bf
;
420 /* Hash table used to merge debug information. */
421 struct coff_debug_merge_hash_table debug_merge
;
422 /* Buffer large enough to hold swapped symbols of any input file. */
423 struct internal_syment
*internal_syms
;
424 /* Buffer large enough to hold sections of symbols of any input file. */
426 /* Buffer large enough to hold output indices of symbols of any
429 /* Buffer large enough to hold output symbols for any input file. */
431 /* Buffer large enough to hold external line numbers for any input
434 /* Buffer large enough to hold any input section. */
436 /* Buffer large enough to hold external relocs of any input section. */
437 bfd_byte
*external_relocs
;
438 /* Buffer large enough to hold swapped relocs of any input section. */
439 struct internal_reloc
*internal_relocs
;
442 extern struct bfd_hash_entry
*_bfd_coff_link_hash_newfunc
443 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
444 extern boolean _bfd_coff_link_hash_table_init
445 PARAMS ((struct coff_link_hash_table
*, bfd
*,
446 struct bfd_hash_entry
*(*) (struct bfd_hash_entry
*,
447 struct bfd_hash_table
*,
449 extern struct bfd_link_hash_table
*_bfd_coff_link_hash_table_create
451 extern const char *_bfd_coff_internal_syment_name
452 PARAMS ((bfd
*, const struct internal_syment
*, char *));
453 extern boolean _bfd_coff_link_add_symbols
454 PARAMS ((bfd
*, struct bfd_link_info
*));
455 extern boolean _bfd_coff_final_link
456 PARAMS ((bfd
*, struct bfd_link_info
*));
457 extern struct internal_reloc
*_bfd_coff_read_internal_relocs
458 PARAMS ((bfd
*, asection
*, boolean
, bfd_byte
*, boolean
,
459 struct internal_reloc
*));
460 extern boolean _bfd_coff_generic_relocate_section
461 PARAMS ((bfd
*, struct bfd_link_info
*, bfd
*, asection
*, bfd_byte
*,
462 struct internal_reloc
*, struct internal_syment
*, asection
**));
464 extern struct bfd_hash_entry
*_bfd_coff_debug_merge_hash_newfunc
465 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
466 extern boolean _bfd_coff_write_global_sym
467 PARAMS ((struct coff_link_hash_entry
*, PTR
));
468 extern boolean _bfd_coff_link_input_bfd
469 PARAMS ((struct coff_final_link_info
*, bfd
*));
470 extern boolean _bfd_coff_reloc_link_order
471 PARAMS ((bfd
*, struct coff_final_link_info
*, asection
*,
472 struct bfd_link_order
*));
475 #define coff_get_section_contents_in_window \
476 _bfd_generic_get_section_contents_in_window
478 /* Functions in xcofflink.c. */
480 extern long _bfd_xcoff_get_dynamic_symtab_upper_bound
PARAMS ((bfd
*));
481 extern long _bfd_xcoff_canonicalize_dynamic_symtab
482 PARAMS ((bfd
*, asymbol
**));
483 extern long _bfd_xcoff_get_dynamic_reloc_upper_bound
PARAMS ((bfd
*));
484 extern long _bfd_xcoff_canonicalize_dynamic_reloc
485 PARAMS ((bfd
*, arelent
**, asymbol
**));
486 extern struct bfd_link_hash_table
*_bfd_xcoff_bfd_link_hash_table_create
488 extern boolean _bfd_xcoff_bfd_link_add_symbols
489 PARAMS ((bfd
*, struct bfd_link_info
*));
490 extern boolean _bfd_xcoff_bfd_final_link
491 PARAMS ((bfd
*, struct bfd_link_info
*));
492 extern boolean _bfd_ppc_xcoff_relocate_section
493 PARAMS ((bfd
*, struct bfd_link_info
*, bfd
*, asection
*, bfd_byte
*,
494 struct internal_reloc
*, struct internal_syment
*, asection
**));
496 /* And more taken from the source .. */