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 /* Use builtin alloca for gcc. */
25 #define alloca __builtin_alloca
29 /* Align an address upward to a boundary, expressed as a number of bytes.
30 E.g. align to an 8-byte boundary with argument of 8. */
31 #define BFD_ALIGN(this, boundary) \
32 ((( (this) + ((boundary) -1)) & (~((boundary)-1))))
34 /* If you want to read and write large blocks, you might want to do it
35 in quanta of this amount */
36 #define DEFAULT_BUFFERSIZE 8192
38 /* Set a tdata field. Can't use the other macros for this, since they
39 do casts, and casting to the left of assignment isn't portable. */
40 #define set_tdata(bfd, v) ((bfd)->tdata.any = (PTR) (v))
42 /* tdata for an archive. For an input archive, cache
43 needs to be free()'d. For an output archive, symdefs do. */
46 file_ptr first_file_filepos;
47 /* Speed up searching the armap */
48 struct ar_cache *cache;
49 bfd *archive_head; /* Only interesting in output routines */
50 carsym *symdefs; /* the symdef entries */
51 symindex symdef_count; /* how many there are */
52 char *extended_names; /* clever intel extension */
53 /* when more compilers are standard C, this can be a time_t */
54 long armap_timestamp; /* Timestamp value written into armap.
55 This is used for BSD archives to check
56 that the timestamp is recent enough
57 for the BSD linker to not complain,
58 just before we finish writing an
60 file_ptr armap_datepos; /* Position within archive to seek to
61 rewrite the date field. */
62 PTR tdata; /* Backend specific information. */
65 #define bfd_ardata(bfd) ((bfd)->tdata.aout_ar_data)
67 /* Goes in bfd's arelt_data slot */
69 char * arch_header; /* it's actually a string */
70 unsigned int parsed_size; /* octets of filesize not including ar_hdr */
71 char *filename; /* null-terminated */
74 #define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size)
76 char *bfd_zmalloc PARAMS ((bfd_size_type size));
78 /* These routines allocate and free things on the BFD's obstack. Note
79 that realloc can never occur in place. */
81 PTR bfd_alloc PARAMS ((bfd *abfd, size_t size));
82 PTR bfd_zalloc PARAMS ((bfd *abfd, size_t size));
83 PTR bfd_realloc PARAMS ((bfd *abfd, PTR orig, size_t new));
84 void bfd_alloc_grow PARAMS ((bfd *abfd, PTR thing, size_t size));
85 PTR bfd_alloc_finish PARAMS ((bfd *abfd));
86 PTR bfd_alloc_by_size_t PARAMS ((bfd *abfd, size_t wanted));
88 #define bfd_release(x,y) (void) obstack_free(&(x->memory),y)
91 bfd_size_type bfd_read PARAMS ((PTR ptr, bfd_size_type size,
92 bfd_size_type nitems, bfd *abfd));
93 bfd_size_type bfd_write PARAMS ((CONST PTR ptr, bfd_size_type size,
94 bfd_size_type nitems, bfd *abfd));
95 int bfd_seek PARAMS ((bfd* CONST abfd, CONST file_ptr fp,
96 CONST int direction));
97 long bfd_tell PARAMS ((bfd *abfd));
99 int bfd_flush PARAMS ((bfd *abfd));
100 int bfd_stat PARAMS ((bfd *abfd, struct stat *));
102 bfd * _bfd_create_empty_archive_element_shell PARAMS ((bfd *obfd));
103 bfd * _bfd_look_for_bfd_in_cache PARAMS ((bfd *arch_bfd, file_ptr index));
104 boolean _bfd_add_bfd_to_archive_cache PARAMS ((bfd *, file_ptr, bfd *));
105 boolean _bfd_generic_mkarchive PARAMS ((bfd *abfd));
106 struct areltdata * _bfd_snarf_ar_hdr PARAMS ((bfd *abfd));
107 bfd_target * bfd_generic_archive_p PARAMS ((bfd *abfd));
108 boolean bfd_slurp_armap PARAMS ((bfd *abfd));
109 boolean bfd_slurp_bsd_armap_f2 PARAMS ((bfd *abfd));
110 #define bfd_slurp_bsd_armap bfd_slurp_armap
111 #define bfd_slurp_coff_armap bfd_slurp_armap
112 boolean _bfd_slurp_extended_name_table PARAMS ((bfd *abfd));
113 boolean _bfd_write_archive_contents PARAMS ((bfd *abfd));
114 bfd *_bfd_get_elt_at_filepos PARAMS ((bfd *archive, file_ptr filepos));
115 bfd * _bfd_new_bfd PARAMS ((void));
117 #define DEFAULT_STRING_SPACE_SIZE 0x2000
118 boolean bfd_add_to_string_table PARAMS ((char **table, char *new_string,
119 unsigned int *table_length,
122 boolean bfd_false PARAMS ((bfd *ignore));
123 boolean bfd_true PARAMS ((bfd *ignore));
124 PTR bfd_nullvoidptr PARAMS ((bfd *ignore));
125 int bfd_0 PARAMS ((bfd *ignore));
126 unsigned int bfd_0u PARAMS ((bfd *ignore));
127 void bfd_void PARAMS ((bfd *ignore));
129 bfd * _bfd_new_bfd_contained_in PARAMS ((bfd *));
130 boolean _bfd_dummy_new_section_hook PARAMS ((bfd *ignore, asection *newsect));
131 char * _bfd_dummy_core_file_failing_command PARAMS ((bfd *abfd));
132 int _bfd_dummy_core_file_failing_signal PARAMS ((bfd *abfd));
133 boolean _bfd_dummy_core_file_matches_executable_p PARAMS ((bfd *core_bfd,
135 bfd_target * _bfd_dummy_target PARAMS ((bfd *abfd));
137 void bfd_dont_truncate_arname PARAMS ((bfd *abfd, CONST char *filename,
139 void bfd_bsd_truncate_arname PARAMS ((bfd *abfd, CONST char *filename,
141 void bfd_gnu_truncate_arname PARAMS ((bfd *abfd, CONST char *filename,
144 boolean bsd_write_armap PARAMS ((bfd *arch, unsigned int elength,
145 struct orl *map, unsigned int orl_count, int stridx));
147 boolean coff_write_armap PARAMS ((bfd *arch, unsigned int elength,
148 struct orl *map, unsigned int orl_count, int stridx));
150 bfd * bfd_generic_openr_next_archived_file PARAMS ((bfd *archive,
153 int bfd_generic_stat_arch_elt PARAMS ((bfd *, struct stat *));
155 boolean bfd_generic_get_section_contents PARAMS ((bfd *abfd, sec_ptr section,
156 PTR location, file_ptr offset,
157 bfd_size_type count));
159 boolean bfd_generic_set_section_contents PARAMS ((bfd *abfd, sec_ptr section,
160 PTR location, file_ptr offset,
161 bfd_size_type count));
163 /* A routine to create entries for a bfd_link_hash_table. */
164 extern struct bfd_hash_entry *_bfd_link_hash_newfunc
165 PARAMS ((struct bfd_hash_entry *entry,
166 struct bfd_hash_table *table,
167 const char *string));
169 /* Initialize a bfd_link_hash_table. */
170 extern boolean _bfd_link_hash_table_init
171 PARAMS ((struct bfd_link_hash_table *, bfd *,
172 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
173 struct bfd_hash_table *,
176 /* Generic link hash table creation routine. */
177 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create
180 /* Generic add symbol routine. */
181 extern boolean _bfd_generic_link_add_symbols
182 PARAMS ((bfd *, struct bfd_link_info *));
184 /* Generic archive add symbol routine. */
185 extern boolean _bfd_generic_link_add_archive_symbols
186 PARAMS ((bfd *, struct bfd_link_info *,
187 boolean (*checkfn) (bfd *, struct bfd_link_info *, boolean *)));
189 /* Forward declaration to avoid prototype errors. */
190 typedef struct bfd_link_hash_entry _bfd_link_hash_entry;
192 /* Generic routine to add a single symbol. */
193 extern boolean _bfd_generic_link_add_one_symbol
194 PARAMS ((struct bfd_link_info *, bfd *, const char *name, flagword,
195 asection *, bfd_vma, const char *, boolean copy,
196 boolean constructor, unsigned int bitsize,
197 struct bfd_link_hash_entry **));
199 /* Generic link routine. */
200 extern boolean _bfd_generic_final_link
201 PARAMS ((bfd *, struct bfd_link_info *));
203 /* Default link order processing routine. */
204 extern boolean _bfd_default_link_order
205 PARAMS ((bfd *, struct bfd_link_info *, asection *,
206 struct bfd_link_order *));
208 /* Final link relocation routine. */
209 extern bfd_reloc_status_type _bfd_final_link_relocate
210 PARAMS ((const reloc_howto_type *, bfd *, asection *, bfd_byte *,
211 bfd_vma address, bfd_vma value, bfd_vma addend));
213 /* Relocate a particular location by a howto and a value. */
214 extern bfd_reloc_status_type _bfd_relocate_contents
215 PARAMS ((const reloc_howto_type *, bfd *, bfd_vma, bfd_byte *));
217 /* Macros to tell if bfds are read or write enabled.
219 Note that bfds open for read may be scribbled into if the fd passed
220 to bfd_fdopenr is actually open both for read and write
221 simultaneously. However an output bfd will never be open for
222 read. Therefore sometimes you want to check bfd_read_p or
223 !bfd_read_p, and only sometimes bfd_write_p.
226 #define bfd_read_p(abfd) ((abfd)->direction == read_direction || (abfd)->direction == both_direction)
227 #define bfd_write_p(abfd) ((abfd)->direction == write_direction || (abfd)->direction == both_direction)
229 void bfd_assert PARAMS ((char*,int));
231 #define BFD_ASSERT(x) \
232 { if (!(x)) bfd_assert(__FILE__,__LINE__); }
235 { bfd_assert(__FILE__,__LINE__); }
237 FILE * bfd_cache_lookup_worker PARAMS ((bfd *));
239 extern bfd *bfd_last_cache;
241 /* Now Steve, what's the story here? */
246 #define itos(x) ((char*)(x))
247 #define stoi(x) ((int)(x))
250 /* Generic routine for close_and_cleanup is really just bfd_true. */
251 #define bfd_generic_close_and_cleanup bfd_true
253 /* List of supported target vectors, and the default vector (if
254 bfd_default_vector[0] is NULL, there is no default). */
255 extern bfd_target *bfd_target_vector[];
256 extern bfd_target *bfd_default_vector[];
258 /* And more follows */
261 bfd_check_init PARAMS ((void));
264 bfd_xmalloc PARAMS ((bfd_size_type size));
267 bfd_xmalloc_by_size_t PARAMS ((size_t size));
270 bfd_write_bigendian_4byte_int PARAMS ((bfd *abfd, int i));
273 bfd_log2 PARAMS ((bfd_vma x));
275 #define BFD_CACHE_MAX_OPEN 10
276 extern bfd *bfd_last_cache;
278 #define bfd_cache_lookup(x) \
279 ((x)==bfd_last_cache? \
280 (FILE*)(bfd_last_cache->iostream): \
281 bfd_cache_lookup_worker(x))
283 bfd_cache_close PARAMS ((bfd *abfd));
286 bfd_open_file PARAMS ((bfd *abfd));
289 bfd_cache_lookup_worker PARAMS ((bfd *abfd));
292 bfd_constructor_entry PARAMS ((bfd *abfd,
293 asymbol **symbol_ptr_ptr,
296 const struct reloc_howto_struct *
297 bfd_default_reloc_type_lookup
298 PARAMS ((bfd *abfd AND
299 bfd_reloc_code_real_type code));
302 bfd_generic_relax_section
305 struct bfd_link_info *,
310 bfd_generic_get_relocated_section_contents PARAMS ((bfd *abfd,
311 struct bfd_link_info *link_info,
312 struct bfd_link_order *link_order,
314 boolean relocateable,
317 extern bfd_arch_info_type bfd_default_arch_struct;
319 bfd_default_set_arch_mach PARAMS ((bfd *abfd,
320 enum bfd_architecture arch,
321 unsigned long mach));
324 bfd_arch_init PARAMS ((void));
327 bfd_arch_linkin PARAMS ((bfd_arch_info_type *ptr));
329 CONST bfd_arch_info_type *
330 bfd_default_compatible
331 PARAMS ((CONST bfd_arch_info_type *a,
332 CONST bfd_arch_info_type *b));
335 bfd_default_scan PARAMS ((CONST struct bfd_arch_info *info, CONST char *string));
337 struct elf_internal_shdr *
338 bfd_elf_find_section PARAMS ((bfd *abfd, char *name));