1 /* libbfd.h -- Declarations used by bfd library *implementation*.
2 (This include file is not for users of the library.)
3 Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
4 Written by Cygnus Support.
6 This file is part of BFD, the Binary File Descriptor library.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
22 /* Align an address upward to a boundary, expressed as a number of bytes.
23 E.g. align to an 8-byte boundary with argument of 8. */
24 #define BFD_ALIGN(this, boundary) \
25 ((( (this) + ((boundary) -1)) & (~((boundary)-1))))
27 /* If you want to read and write large blocks, you might want to do it
28 in quanta of this amount */
29 #define DEFAULT_BUFFERSIZE 8192
31 /* Set a tdata field. Can't use the other macros for this, since they
32 do casts, and casting to the left of assignment isn't portable. */
33 #define set_tdata(bfd, v) ((bfd)->tdata.any = (PTR) (v))
35 /* tdata for an archive. For an input archive, cache
36 needs to be free()'d. For an output archive, symdefs do. */
39 file_ptr first_file_filepos;
40 /* Speed up searching the armap */
41 struct ar_cache *cache;
42 bfd *archive_head; /* Only interesting in output routines */
43 carsym *symdefs; /* the symdef entries */
44 symindex symdef_count; /* how many there are */
45 char *extended_names; /* clever intel extension */
46 /* when more compilers are standard C, this can be a time_t */
47 long armap_timestamp; /* Timestamp value written into armap.
48 This is used for BSD archives to check
49 that the timestamp is recent enough
50 for the BSD linker to not complain,
51 just before we finish writing an
53 file_ptr armap_datepos; /* Position within archive to seek to
54 rewrite the date field. */
55 PTR tdata; /* Backend specific information. */
58 #define bfd_ardata(bfd) ((bfd)->tdata.aout_ar_data)
60 /* Goes in bfd's arelt_data slot */
62 char * arch_header; /* it's actually a string */
63 unsigned int parsed_size; /* octets of filesize not including ar_hdr */
64 char *filename; /* null-terminated */
67 #define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size)
69 char *bfd_zmalloc PARAMS ((bfd_size_type size));
71 /* These routines allocate and free things on the BFD's obstack. Note
72 that realloc can never occur in place. */
74 PTR bfd_alloc PARAMS ((bfd *abfd, size_t size));
75 PTR bfd_zalloc PARAMS ((bfd *abfd, size_t size));
76 PTR bfd_realloc PARAMS ((bfd *abfd, PTR orig, size_t new));
77 void bfd_alloc_grow PARAMS ((bfd *abfd, PTR thing, size_t size));
78 PTR bfd_alloc_finish PARAMS ((bfd *abfd));
79 PTR bfd_alloc_by_size_t PARAMS ((bfd *abfd, size_t wanted));
81 #define bfd_release(x,y) (void) obstack_free(&(x->memory),y)
84 bfd_size_type bfd_read PARAMS ((PTR ptr, bfd_size_type size,
85 bfd_size_type nitems, bfd *abfd));
86 bfd_size_type bfd_write PARAMS ((CONST PTR ptr, bfd_size_type size,
87 bfd_size_type nitems, bfd *abfd));
88 int bfd_seek PARAMS ((bfd* CONST abfd, CONST file_ptr fp,
89 CONST int direction));
90 long bfd_tell PARAMS ((bfd *abfd));
92 int bfd_flush PARAMS ((bfd *abfd));
93 int bfd_stat PARAMS ((bfd *abfd, struct stat *));
95 bfd * _bfd_create_empty_archive_element_shell PARAMS ((bfd *obfd));
96 bfd * _bfd_look_for_bfd_in_cache PARAMS ((bfd *arch_bfd, file_ptr index));
97 boolean _bfd_add_bfd_to_archive_cache PARAMS ((bfd *, file_ptr, bfd *));
98 boolean _bfd_generic_mkarchive PARAMS ((bfd *abfd));
99 struct areltdata * _bfd_snarf_ar_hdr PARAMS ((bfd *abfd));
100 bfd_target * bfd_generic_archive_p PARAMS ((bfd *abfd));
101 boolean bfd_slurp_armap PARAMS ((bfd *abfd));
102 boolean bfd_slurp_bsd_armap_f2 PARAMS ((bfd *abfd));
103 #define bfd_slurp_bsd_armap bfd_slurp_armap
104 #define bfd_slurp_coff_armap bfd_slurp_armap
105 boolean _bfd_slurp_extended_name_table PARAMS ((bfd *abfd));
106 boolean _bfd_write_archive_contents PARAMS ((bfd *abfd));
107 bfd *_bfd_get_elt_at_filepos PARAMS ((bfd *archive, file_ptr filepos));
108 bfd * _bfd_new_bfd PARAMS ((void));
110 #define DEFAULT_STRING_SPACE_SIZE 0x2000
111 boolean bfd_add_to_string_table PARAMS ((char **table, char *new_string,
112 unsigned int *table_length,
115 boolean bfd_false PARAMS ((bfd *ignore));
116 boolean bfd_true PARAMS ((bfd *ignore));
117 PTR bfd_nullvoidptr PARAMS ((bfd *ignore));
118 int bfd_0 PARAMS ((bfd *ignore));
119 unsigned int bfd_0u PARAMS ((bfd *ignore));
120 void bfd_void PARAMS ((bfd *ignore));
122 bfd * _bfd_new_bfd_contained_in PARAMS ((bfd *));
123 boolean _bfd_dummy_new_section_hook PARAMS ((bfd *ignore, asection *newsect));
124 char * _bfd_dummy_core_file_failing_command PARAMS ((bfd *abfd));
125 int _bfd_dummy_core_file_failing_signal PARAMS ((bfd *abfd));
126 boolean _bfd_dummy_core_file_matches_executable_p PARAMS ((bfd *core_bfd,
128 bfd_target * _bfd_dummy_target PARAMS ((bfd *abfd));
130 void bfd_dont_truncate_arname PARAMS ((bfd *abfd, CONST char *filename,
132 void bfd_bsd_truncate_arname PARAMS ((bfd *abfd, CONST char *filename,
134 void bfd_gnu_truncate_arname PARAMS ((bfd *abfd, CONST char *filename,
137 boolean bsd_write_armap PARAMS ((bfd *arch, unsigned int elength,
138 struct orl *map, unsigned int orl_count, int stridx));
140 boolean coff_write_armap PARAMS ((bfd *arch, unsigned int elength,
141 struct orl *map, unsigned int orl_count, int stridx));
143 bfd * bfd_generic_openr_next_archived_file PARAMS ((bfd *archive,
146 int bfd_generic_stat_arch_elt PARAMS ((bfd *, struct stat *));
148 boolean bfd_generic_get_section_contents PARAMS ((bfd *abfd, sec_ptr section,
149 PTR location, file_ptr offset,
150 bfd_size_type count));
152 boolean bfd_generic_set_section_contents PARAMS ((bfd *abfd, sec_ptr section,
153 PTR location, file_ptr offset,
154 bfd_size_type count));
156 /* Generic routine to determine of the given symbol is a local
158 extern boolean bfd_generic_is_local_label PARAMS ((bfd *, asymbol *));
160 /* A routine to create entries for a bfd_link_hash_table. */
161 extern struct bfd_hash_entry *_bfd_link_hash_newfunc
162 PARAMS ((struct bfd_hash_entry *entry,
163 struct bfd_hash_table *table,
164 const char *string));
166 /* Initialize a bfd_link_hash_table. */
167 extern boolean _bfd_link_hash_table_init
168 PARAMS ((struct bfd_link_hash_table *, bfd *,
169 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
170 struct bfd_hash_table *,
173 /* Generic link hash table creation routine. */
174 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create
177 /* Generic add symbol routine. */
178 extern boolean _bfd_generic_link_add_symbols
179 PARAMS ((bfd *, struct bfd_link_info *));
181 /* Generic add symbol routine. This version is used by targets for
182 which the linker must collect constructors and destructors by name,
183 as the collect2 program does. */
184 extern boolean _bfd_generic_link_add_symbols_collect
185 PARAMS ((bfd *, struct bfd_link_info *));
187 /* Generic archive add symbol routine. */
188 extern boolean _bfd_generic_link_add_archive_symbols
189 PARAMS ((bfd *, struct bfd_link_info *,
190 boolean (*checkfn) (bfd *, struct bfd_link_info *, boolean *)));
192 /* Forward declaration to avoid prototype errors. */
193 typedef struct bfd_link_hash_entry _bfd_link_hash_entry;
195 /* Generic routine to add a single symbol. */
196 extern boolean _bfd_generic_link_add_one_symbol
197 PARAMS ((struct bfd_link_info *, bfd *, const char *name, flagword,
198 asection *, bfd_vma, const char *, boolean copy,
199 boolean constructor, struct bfd_link_hash_entry **));
201 /* Generic link routine. */
202 extern boolean _bfd_generic_final_link
203 PARAMS ((bfd *, struct bfd_link_info *));
205 /* Generic reloc_link_order processing routine. */
206 extern boolean _bfd_generic_reloc_link_order
207 PARAMS ((bfd *, struct bfd_link_info *, asection *,
208 struct bfd_link_order *));
210 /* Default link order processing routine. */
211 extern boolean _bfd_default_link_order
212 PARAMS ((bfd *, struct bfd_link_info *, asection *,
213 struct bfd_link_order *));
215 /* Count the number of reloc entries in a link order list. */
216 extern unsigned int _bfd_count_link_order_relocs
217 PARAMS ((struct bfd_link_order *));
219 /* Final link relocation routine. */
220 extern bfd_reloc_status_type _bfd_final_link_relocate
221 PARAMS ((const reloc_howto_type *, bfd *, asection *, bfd_byte *,
222 bfd_vma address, bfd_vma value, bfd_vma addend));
224 /* Relocate a particular location by a howto and a value. */
225 extern bfd_reloc_status_type _bfd_relocate_contents
226 PARAMS ((const reloc_howto_type *, bfd *, bfd_vma, bfd_byte *));
228 /* Macros to tell if bfds are read or write enabled.
230 Note that bfds open for read may be scribbled into if the fd passed
231 to bfd_fdopenr is actually open both for read and write
232 simultaneously. However an output bfd will never be open for
233 read. Therefore sometimes you want to check bfd_read_p or
234 !bfd_read_p, and only sometimes bfd_write_p.
237 #define bfd_read_p(abfd) ((abfd)->direction == read_direction || (abfd)->direction == both_direction)
238 #define bfd_write_p(abfd) ((abfd)->direction == write_direction || (abfd)->direction == both_direction)
240 void bfd_assert PARAMS ((char*,int));
242 #define BFD_ASSERT(x) \
243 { if (!(x)) bfd_assert(__FILE__,__LINE__); }
246 { bfd_assert(__FILE__,__LINE__); }
248 FILE * bfd_cache_lookup_worker PARAMS ((bfd *));
250 extern bfd *bfd_last_cache;
252 /* Now Steve, what's the story here? */
257 #define itos(x) ((char*)(x))
258 #define stoi(x) ((int)(x))
261 /* Generic routine for close_and_cleanup is really just bfd_true. */
262 #define bfd_generic_close_and_cleanup bfd_true
264 /* List of supported target vectors, and the default vector (if
265 bfd_default_vector[0] is NULL, there is no default). */
266 extern bfd_target *bfd_target_vector[];
267 extern bfd_target *bfd_default_vector[];
269 /* And more follows */
272 bfd_check_init PARAMS ((void));
275 bfd_write_bigendian_4byte_int PARAMS ((bfd *abfd, int i));
278 bfd_log2 PARAMS ((bfd_vma x));
280 #define BFD_CACHE_MAX_OPEN 10
281 extern bfd *bfd_last_cache;
283 #define bfd_cache_lookup(x) \
284 ((x)==bfd_last_cache? \
285 (FILE*)(bfd_last_cache->iostream): \
286 bfd_cache_lookup_worker(x))
288 bfd_cache_close PARAMS ((bfd *abfd));
291 bfd_open_file PARAMS ((bfd *abfd));
294 bfd_cache_lookup_worker PARAMS ((bfd *abfd));
297 bfd_constructor_entry PARAMS ((bfd *abfd,
298 asymbol **symbol_ptr_ptr,
301 const struct reloc_howto_struct *
302 bfd_default_reloc_type_lookup
303 PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
306 bfd_generic_relax_section
309 struct bfd_link_info *,
314 bfd_generic_get_relocated_section_contents PARAMS ((bfd *abfd,
315 struct bfd_link_info *link_info,
316 struct bfd_link_order *link_order,
318 boolean relocateable,
321 extern bfd_arch_info_type bfd_default_arch_struct;
323 bfd_default_set_arch_mach PARAMS ((bfd *abfd,
324 enum bfd_architecture arch,
325 unsigned long mach));
328 bfd_arch_init PARAMS ((void));
331 bfd_arch_linkin PARAMS ((bfd_arch_info_type *ptr));
333 CONST bfd_arch_info_type *
334 bfd_default_compatible
335 PARAMS ((CONST bfd_arch_info_type *a,
336 CONST bfd_arch_info_type *b));
339 bfd_default_scan PARAMS ((CONST struct bfd_arch_info *info, CONST char *string));
341 struct elf_internal_shdr *
342 bfd_elf_find_section PARAMS ((bfd *abfd, char *name));