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
;
98 #define pe_data(bfd) ((bfd)->tdata.pe_obj_data)
101 /* We take the address of the first element of a asymbol to ensure that the
102 * macro is only ever applied to an asymbol. */
103 #define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd)))
105 /* The used_by_bfd field of a section may be set to a pointer to this
108 struct coff_section_tdata
110 /* The relocs, swapped into COFF internal form. This may be NULL. */
111 struct internal_reloc
*relocs
;
112 /* If this is true, the relocs entry may not be freed. */
114 /* The section contents. This may be NULL. */
116 /* If this is true, the contents entry may not be freed. */
117 boolean keep_contents
;
118 /* Available for individual backends. */
122 /* An accessor macro for the coff_section_tdata structure. */
123 #define coff_section_data(abfd, sec) \
124 ((struct coff_section_tdata *) (sec)->used_by_bfd)
126 /* COFF linker hash table entries. */
128 struct coff_link_hash_entry
130 struct bfd_link_hash_entry root
;
132 /* Symbol index in output file. Set to -1 initially. Set to -2 if
133 there is a reloc against this symbol. */
142 /* Number of auxiliary entries. */
145 /* BFD to take auxiliary entries from. */
148 /* Pointer to array of auxiliary entries, if any. */
149 union internal_auxent
*aux
;
152 /* COFF linker hash table. */
154 struct coff_link_hash_table
156 struct bfd_link_hash_table root
;
159 /* Look up an entry in a COFF linker hash table. */
161 #define coff_link_hash_lookup(table, string, create, copy, follow) \
162 ((struct coff_link_hash_entry *) \
163 bfd_link_hash_lookup (&(table)->root, (string), (create), \
166 /* Traverse a COFF linker hash table. */
168 #define coff_link_hash_traverse(table, func, info) \
169 (bfd_link_hash_traverse \
171 (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \
174 /* Get the COFF linker hash table from a link_info structure. */
176 #define coff_hash_table(p) ((struct coff_link_hash_table *) ((p)->hash))
178 /* Functions in coffgen.c. */
179 extern const bfd_target
*coff_object_p
PARAMS ((bfd
*));
180 extern struct sec
*coff_section_from_bfd_index
PARAMS ((bfd
*, int));
181 extern long coff_get_symtab_upper_bound
PARAMS ((bfd
*));
182 extern long coff_get_symtab
PARAMS ((bfd
*, asymbol
**));
183 extern int coff_count_linenumbers
PARAMS ((bfd
*));
184 extern struct coff_symbol_struct
*coff_symbol_from
PARAMS ((bfd
*, asymbol
*));
185 extern boolean coff_renumber_symbols
PARAMS ((bfd
*, int *));
186 extern void coff_mangle_symbols
PARAMS ((bfd
*));
187 extern boolean coff_write_symbols
PARAMS ((bfd
*));
188 extern boolean coff_write_linenumbers
PARAMS ((bfd
*));
189 extern alent
*coff_get_lineno
PARAMS ((bfd
*, asymbol
*));
190 extern asymbol
*coff_section_symbol
PARAMS ((bfd
*, char *));
191 extern boolean _bfd_coff_get_external_symbols
PARAMS ((bfd
*));
192 extern const char *_bfd_coff_read_string_table
PARAMS ((bfd
*));
193 extern boolean _bfd_coff_free_symbols
PARAMS ((bfd
*));
194 extern struct coff_ptr_struct
*coff_get_normalized_symtab
PARAMS ((bfd
*));
195 extern long coff_get_reloc_upper_bound
PARAMS ((bfd
*, sec_ptr
));
196 extern asymbol
*coff_make_empty_symbol
PARAMS ((bfd
*));
197 extern void coff_print_symbol
PARAMS ((bfd
*, PTR filep
, asymbol
*,
198 bfd_print_symbol_type how
));
199 extern void coff_get_symbol_info
PARAMS ((bfd
*, asymbol
*,
201 extern asymbol
*coff_bfd_make_debug_symbol
PARAMS ((bfd
*, PTR
,
203 extern boolean coff_find_nearest_line
PARAMS ((bfd
*,
207 CONST
char **filename_ptr
,
208 CONST
char **functionname_ptr
,
209 unsigned int *line_ptr
));
210 extern int coff_sizeof_headers
PARAMS ((bfd
*, boolean reloc
));
211 extern boolean bfd_coff_reloc16_relax_section
212 PARAMS ((bfd
*, asection
*, struct bfd_link_info
*, boolean
*));
213 extern bfd_byte
*bfd_coff_reloc16_get_relocated_section_contents
214 PARAMS ((bfd
*, struct bfd_link_info
*, struct bfd_link_order
*,
215 bfd_byte
*, boolean relocateable
, asymbol
**));
216 extern bfd_vma bfd_coff_reloc16_get_value
PARAMS ((arelent
*,
217 struct bfd_link_info
*,
219 extern void bfd_perform_slip
PARAMS ((bfd
*abfd
, unsigned int slip
,
220 asection
*input_section
,
223 /* Functions in cofflink.c. */
225 extern struct bfd_link_hash_table
*_bfd_coff_link_hash_table_create
227 extern const char *_bfd_coff_internal_syment_name
228 PARAMS ((bfd
*, const struct internal_syment
*, char *));
229 extern boolean _bfd_coff_link_add_symbols
230 PARAMS ((bfd
*, struct bfd_link_info
*));
231 extern boolean _bfd_coff_final_link
232 PARAMS ((bfd
*, struct bfd_link_info
*));
233 extern struct internal_reloc
*_bfd_coff_read_internal_relocs
234 PARAMS ((bfd
*, asection
*, boolean
, bfd_byte
*, boolean
,
235 struct internal_reloc
*));
236 extern boolean _bfd_coff_generic_relocate_section
237 PARAMS ((bfd
*, struct bfd_link_info
*, bfd
*, asection
*, bfd_byte
*,
238 struct internal_reloc
*, struct internal_syment
*, asection
**));
240 /* And more taken from the source .. */