1 /* BFD COFF object file private structure.
2 Copyright (C) 1990, 91, 92, 93, 94, 1995 Free Software Foundation, Inc.
3 Written by Cygnus Support.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
23 /* Object file tdata; access macros */
25 #define coff_data(bfd) ((bfd)->tdata.coff_obj_data)
26 #define exec_hdr(bfd) (coff_data(bfd)->hdr)
27 #define obj_pe(bfd) (coff_data(bfd)->pe)
28 #define obj_symbols(bfd) (coff_data(bfd)->symbols)
29 #define obj_sym_filepos(bfd) (coff_data(bfd)->sym_filepos)
31 #define obj_relocbase(bfd) (coff_data(bfd)->relocbase)
32 #define obj_raw_syments(bfd) (coff_data(bfd)->raw_syments)
33 #define obj_raw_syment_count(bfd) (coff_data(bfd)->raw_syment_count)
34 #define obj_convert(bfd) (coff_data(bfd)->conversion_table)
35 #define obj_conv_table_size(bfd) (coff_data(bfd)->conv_table_size)
37 #define obj_coff_external_syms(bfd) (coff_data (bfd)->external_syms)
38 #define obj_coff_keep_syms(bfd) (coff_data (bfd)->keep_syms)
39 #define obj_coff_strings(bfd) (coff_data (bfd)->strings)
40 #define obj_coff_keep_strings(bfd) (coff_data (bfd)->keep_strings)
41 #define obj_coff_sym_hashes(bfd) (coff_data (bfd)->sym_hashes)
43 /* `Tdata' information kept for COFF files. */
45 typedef struct coff_tdata
47 struct coff_symbol_struct
*symbols
; /* symtab for input bfd */
48 unsigned int *conversion_table
;
52 struct coff_ptr_struct
*raw_syments
;
53 unsigned int raw_syment_count
;
55 /* These are only valid once writing has begun */
58 /* These members communicate important constants about the symbol table
59 to GDB's symbol-reading code. These `constants' unfortunately vary
60 from coff implementation to implementation... */
61 unsigned local_n_btmask
;
62 unsigned local_n_btshft
;
63 unsigned local_n_tmask
;
64 unsigned local_n_tshift
;
65 unsigned local_symesz
;
66 unsigned local_auxesz
;
67 unsigned local_linesz
;
69 /* The unswapped external symbols. May be NULL. Read by
70 _bfd_coff_get_external_symbols. */
72 /* If this is true, the external_syms may not be freed. */
75 /* The string table. May be NULL. Read by
76 _bfd_coff_read_string_table. */
78 /* If this is true, the strings may not be freed. */
81 /* is this a PE format coff file */
83 /* Used by the COFF backend linker. */
84 struct coff_link_hash_entry
**sym_hashes
;
86 struct bfd_link_info
*link_info
;
89 /* Tdata for pe image files. */
90 typedef struct pe_tdata
93 struct internal_extra_pe_aouthdr pe_opthdr
;
95 int has_reloc_section
;
96 boolean (*in_reloc_p
) PARAMS((bfd
*, reloc_howto_type
*));
99 #define pe_data(bfd) ((bfd)->tdata.pe_obj_data)
101 /* Tdata for XCOFF files. */
105 /* Basic COFF information. */
111 /* .text alignment from optional header. */
112 int text_align_power
;
114 /* .data alignment from optional header. */
115 int data_align_power
;
117 /* modtype from optional header. */
120 /* cputype from optional header. */
123 /* maxdata from optional header. */
124 bfd_size_type maxdata
;
126 /* maxstack from optional header. */
127 bfd_size_type maxstack
;
129 /* Used by the XCOFF backend linker. */
131 unsigned long *debug_indices
;
132 unsigned int import_file_id
;
135 #define xcoff_data(abfd) ((abfd)->tdata.xcoff_obj_data)
137 /* We take the address of the first element of a asymbol to ensure that the
138 * macro is only ever applied to an asymbol. */
139 #define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd)))
141 /* The used_by_bfd field of a section may be set to a pointer to this
144 struct coff_section_tdata
146 /* The relocs, swapped into COFF internal form. This may be NULL. */
147 struct internal_reloc
*relocs
;
148 /* If this is true, the relocs entry may not be freed. */
150 /* The section contents. This may be NULL. */
152 /* If this is true, the contents entry may not be freed. */
153 boolean keep_contents
;
154 /* Information cached by coff_find_nearest_line. */
157 const char *function
;
159 /* Available for individual backends. */
163 /* An accessor macro for the coff_section_tdata structure. */
164 #define coff_section_data(abfd, sec) \
165 ((struct coff_section_tdata *) (sec)->used_by_bfd)
167 /* Tdata for sections in XCOFF files. This is used by the linker. */
169 struct xcoff_section_tdata
171 /* Used for XCOFF csects created by the linker; points to the real
172 XCOFF section which contains this csect. */
174 /* The lineno_count field for the enclosing section, because we are
175 going to clobber it there. */
176 unsigned int lineno_count
;
177 /* The first and one past the last symbol indices for symbols used
179 unsigned long first_symndx
;
180 unsigned long last_symndx
;
181 /* The number of .loader relocs in this csect. */
185 /* An accessor macro the xcoff_section_tdata structure. */
186 #define xcoff_section_data(abfd, sec) \
187 ((struct xcoff_section_tdata *) coff_section_data ((abfd), (sec))->tdata)
189 /* COFF linker hash table entries. */
191 struct coff_link_hash_entry
193 struct bfd_link_hash_entry root
;
195 /* Symbol index in output file. Set to -1 initially. Set to -2 if
196 there is a reloc against this symbol. */
205 /* Number of auxiliary entries. */
208 /* BFD to take auxiliary entries from. */
211 /* Pointer to array of auxiliary entries, if any. */
212 union internal_auxent
*aux
;
215 /* COFF linker hash table. */
217 struct coff_link_hash_table
219 struct bfd_link_hash_table root
;
222 /* Look up an entry in a COFF linker hash table. */
224 #define coff_link_hash_lookup(table, string, create, copy, follow) \
225 ((struct coff_link_hash_entry *) \
226 bfd_link_hash_lookup (&(table)->root, (string), (create), \
229 /* Traverse a COFF linker hash table. */
231 #define coff_link_hash_traverse(table, func, info) \
232 (bfd_link_hash_traverse \
234 (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \
237 /* Get the COFF linker hash table from a link_info structure. */
239 #define coff_hash_table(p) ((struct coff_link_hash_table *) ((p)->hash))
241 /* Functions in coffgen.c. */
242 extern const bfd_target
*coff_object_p
PARAMS ((bfd
*));
243 extern struct sec
*coff_section_from_bfd_index
PARAMS ((bfd
*, int));
244 extern long coff_get_symtab_upper_bound
PARAMS ((bfd
*));
245 extern long coff_get_symtab
PARAMS ((bfd
*, asymbol
**));
246 extern int coff_count_linenumbers
PARAMS ((bfd
*));
247 extern struct coff_symbol_struct
*coff_symbol_from
PARAMS ((bfd
*, asymbol
*));
248 extern boolean coff_renumber_symbols
PARAMS ((bfd
*, int *));
249 extern void coff_mangle_symbols
PARAMS ((bfd
*));
250 extern boolean coff_write_symbols
PARAMS ((bfd
*));
251 extern boolean coff_write_linenumbers
PARAMS ((bfd
*));
252 extern alent
*coff_get_lineno
PARAMS ((bfd
*, asymbol
*));
253 extern asymbol
*coff_section_symbol
PARAMS ((bfd
*, char *));
254 extern boolean _bfd_coff_get_external_symbols
PARAMS ((bfd
*));
255 extern const char *_bfd_coff_read_string_table
PARAMS ((bfd
*));
256 extern boolean _bfd_coff_free_symbols
PARAMS ((bfd
*));
257 extern struct coff_ptr_struct
*coff_get_normalized_symtab
PARAMS ((bfd
*));
258 extern long coff_get_reloc_upper_bound
PARAMS ((bfd
*, sec_ptr
));
259 extern asymbol
*coff_make_empty_symbol
PARAMS ((bfd
*));
260 extern void coff_print_symbol
PARAMS ((bfd
*, PTR filep
, asymbol
*,
261 bfd_print_symbol_type how
));
262 extern void coff_get_symbol_info
PARAMS ((bfd
*, asymbol
*,
264 extern asymbol
*coff_bfd_make_debug_symbol
PARAMS ((bfd
*, PTR
,
266 extern boolean coff_find_nearest_line
PARAMS ((bfd
*,
270 CONST
char **filename_ptr
,
271 CONST
char **functionname_ptr
,
272 unsigned int *line_ptr
));
273 extern int coff_sizeof_headers
PARAMS ((bfd
*, boolean reloc
));
274 extern boolean bfd_coff_reloc16_relax_section
275 PARAMS ((bfd
*, asection
*, struct bfd_link_info
*, boolean
*));
276 extern bfd_byte
*bfd_coff_reloc16_get_relocated_section_contents
277 PARAMS ((bfd
*, struct bfd_link_info
*, struct bfd_link_order
*,
278 bfd_byte
*, boolean relocateable
, asymbol
**));
279 extern bfd_vma bfd_coff_reloc16_get_value
PARAMS ((arelent
*,
280 struct bfd_link_info
*,
282 extern void bfd_perform_slip
PARAMS ((bfd
*abfd
, unsigned int slip
,
283 asection
*input_section
,
286 /* Functions in cofflink.c. */
288 extern struct bfd_hash_entry
*_bfd_coff_link_hash_newfunc
289 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
290 extern boolean _bfd_coff_link_hash_table_init
291 PARAMS ((struct coff_link_hash_table
*, bfd
*,
292 struct bfd_hash_entry
*(*) (struct bfd_hash_entry
*,
293 struct bfd_hash_table
*,
295 extern struct bfd_link_hash_table
*_bfd_coff_link_hash_table_create
297 extern const char *_bfd_coff_internal_syment_name
298 PARAMS ((bfd
*, const struct internal_syment
*, char *));
299 extern boolean _bfd_coff_link_add_symbols
300 PARAMS ((bfd
*, struct bfd_link_info
*));
301 extern boolean _bfd_coff_final_link
302 PARAMS ((bfd
*, struct bfd_link_info
*));
303 extern struct internal_reloc
*_bfd_coff_read_internal_relocs
304 PARAMS ((bfd
*, asection
*, boolean
, bfd_byte
*, boolean
,
305 struct internal_reloc
*));
306 extern boolean _bfd_coff_generic_relocate_section
307 PARAMS ((bfd
*, struct bfd_link_info
*, bfd
*, asection
*, bfd_byte
*,
308 struct internal_reloc
*, struct internal_syment
*, asection
**));
310 /* Functions in xcofflink.c. */
312 extern struct bfd_link_hash_table
*_bfd_xcoff_bfd_link_hash_table_create
314 extern boolean _bfd_xcoff_bfd_link_add_symbols
315 PARAMS ((bfd
*, struct bfd_link_info
*));
316 extern boolean _bfd_xcoff_bfd_final_link
317 PARAMS ((bfd
*, struct bfd_link_info
*));
318 extern boolean _bfd_ppc_xcoff_relocate_section
319 PARAMS ((bfd
*, struct bfd_link_info
*, bfd
*, asection
*, bfd_byte
*,
320 struct internal_reloc
*, struct internal_syment
*, asection
**));
322 /* And more taken from the source .. */