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 /* There is major inconsistency in how running out of memory is handled.
77 Some routines return a NULL, and set bfd_error to no_memory.
78 However, obstack routines can't do this ... */
80 char *bfd_zmalloc PARAMS ((bfd_size_type size));
82 extern PTR xmalloc PARAMS ((size_t));
83 /* SIZE is bfd_size_type. */
84 #define bfd_xmalloc(size) xmalloc ((size_t) size)
86 #define bfd_xmalloc_by_size_t(size) xmalloc (size)
88 /* These routines allocate and free things on the BFD's obstack. Note
89 that realloc can never occur in place. */
91 PTR bfd_alloc PARAMS ((bfd *abfd, size_t size));
92 PTR bfd_zalloc PARAMS ((bfd *abfd, size_t size));
93 PTR bfd_realloc PARAMS ((bfd *abfd, PTR orig, size_t new));
94 void bfd_alloc_grow PARAMS ((bfd *abfd, PTR thing, size_t size));
95 PTR bfd_alloc_finish PARAMS ((bfd *abfd));
96 PTR bfd_alloc_by_size_t PARAMS ((bfd *abfd, size_t wanted));
98 #define bfd_release(x,y) (void) obstack_free(&(x->memory),y)
101 bfd_size_type bfd_read PARAMS ((PTR ptr, bfd_size_type size,
102 bfd_size_type nitems, bfd *abfd));
103 bfd_size_type bfd_write PARAMS ((CONST PTR ptr, bfd_size_type size,
104 bfd_size_type nitems, bfd *abfd));
105 int bfd_seek PARAMS ((bfd* CONST abfd, CONST file_ptr fp,
106 CONST int direction));
107 long bfd_tell PARAMS ((bfd *abfd));
109 int bfd_flush PARAMS ((bfd *abfd));
110 int bfd_stat PARAMS ((bfd *abfd, struct stat *));
112 bfd * _bfd_create_empty_archive_element_shell PARAMS ((bfd *obfd));
113 bfd * _bfd_look_for_bfd_in_cache PARAMS ((bfd *arch_bfd, file_ptr index));
114 boolean _bfd_add_bfd_to_archive_cache PARAMS ((bfd *, file_ptr, bfd *));
115 boolean _bfd_generic_mkarchive PARAMS ((bfd *abfd));
116 struct areltdata * _bfd_snarf_ar_hdr PARAMS ((bfd *abfd));
117 bfd_target * bfd_generic_archive_p PARAMS ((bfd *abfd));
118 boolean bfd_slurp_armap PARAMS ((bfd *abfd));
119 boolean bfd_slurp_bsd_armap_f2 PARAMS ((bfd *abfd));
120 #define bfd_slurp_bsd_armap bfd_slurp_armap
121 #define bfd_slurp_coff_armap bfd_slurp_armap
122 boolean _bfd_slurp_extended_name_table PARAMS ((bfd *abfd));
123 boolean _bfd_write_archive_contents PARAMS ((bfd *abfd));
124 bfd *_bfd_get_elt_at_filepos PARAMS ((bfd *archive, file_ptr filepos));
125 bfd * _bfd_new_bfd PARAMS ((void));
127 #define DEFAULT_STRING_SPACE_SIZE 0x2000
128 boolean bfd_add_to_string_table PARAMS ((char **table, char *new_string,
129 unsigned int *table_length,
132 boolean bfd_false PARAMS ((bfd *ignore));
133 boolean bfd_true PARAMS ((bfd *ignore));
134 PTR bfd_nullvoidptr PARAMS ((bfd *ignore));
135 int bfd_0 PARAMS ((bfd *ignore));
136 unsigned int bfd_0u PARAMS ((bfd *ignore));
137 void bfd_void PARAMS ((bfd *ignore));
139 bfd * _bfd_new_bfd_contained_in PARAMS ((bfd *));
140 boolean _bfd_dummy_new_section_hook PARAMS ((bfd *ignore, asection *newsect));
141 char * _bfd_dummy_core_file_failing_command PARAMS ((bfd *abfd));
142 int _bfd_dummy_core_file_failing_signal PARAMS ((bfd *abfd));
143 boolean _bfd_dummy_core_file_matches_executable_p PARAMS ((bfd *core_bfd,
145 bfd_target * _bfd_dummy_target PARAMS ((bfd *abfd));
147 void bfd_dont_truncate_arname PARAMS ((bfd *abfd, CONST char *filename,
149 void bfd_bsd_truncate_arname PARAMS ((bfd *abfd, CONST char *filename,
151 void bfd_gnu_truncate_arname PARAMS ((bfd *abfd, CONST char *filename,
154 boolean bsd_write_armap PARAMS ((bfd *arch, unsigned int elength,
155 struct orl *map, unsigned int orl_count, int stridx));
157 boolean coff_write_armap PARAMS ((bfd *arch, unsigned int elength,
158 struct orl *map, unsigned int orl_count, int stridx));
160 bfd * bfd_generic_openr_next_archived_file PARAMS ((bfd *archive,
163 int bfd_generic_stat_arch_elt PARAMS ((bfd *, struct stat *));
165 boolean bfd_generic_get_section_contents PARAMS ((bfd *abfd, sec_ptr section,
166 PTR location, file_ptr offset,
167 bfd_size_type count));
169 boolean bfd_generic_set_section_contents PARAMS ((bfd *abfd, sec_ptr section,
170 PTR location, file_ptr offset,
171 bfd_size_type count));
173 /* A routine to create entries for a bfd_link_hash_table. */
174 extern struct bfd_hash_entry *_bfd_link_hash_newfunc
175 PARAMS ((struct bfd_hash_entry *entry,
176 struct bfd_hash_table *table,
177 const char *string));
179 /* Initialize a bfd_link_hash_table. */
180 extern boolean _bfd_link_hash_table_init
181 PARAMS ((struct bfd_link_hash_table *, bfd *,
182 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
183 struct bfd_hash_table *,
186 /* Generic link hash table creation routine. */
187 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create
190 /* Generic add symbol routine. */
191 extern boolean _bfd_generic_link_add_symbols
192 PARAMS ((bfd *, struct bfd_link_info *));
194 /* Generic archive add symbol routine. */
195 extern boolean _bfd_generic_link_add_archive_symbols
196 PARAMS ((bfd *, struct bfd_link_info *,
197 boolean (*checkfn) (bfd *, struct bfd_link_info *, boolean *)));
199 /* Forward declaration to avoid prototype errors. */
200 typedef struct bfd_link_hash_entry _bfd_link_hash_entry;
202 /* Generic routine to add a single symbol. */
203 extern boolean _bfd_generic_link_add_one_symbol
204 PARAMS ((struct bfd_link_info *, bfd *, const char *name, flagword,
205 asection *, bfd_vma, const char *, boolean copy,
206 boolean constructor, unsigned int bitsize,
207 struct bfd_link_hash_entry **));
209 /* Generic link routine. */
210 extern boolean _bfd_generic_final_link
211 PARAMS ((bfd *, struct bfd_link_info *));
213 /* Default link order processing routine. */
214 extern boolean _bfd_default_link_order
215 PARAMS ((bfd *, struct bfd_link_info *, asection *,
216 struct bfd_link_order *));
218 /* Final link relocation routine. */
219 extern bfd_reloc_status_type _bfd_final_link_relocate
220 PARAMS ((const reloc_howto_type *, bfd *, asection *, bfd_byte *,
221 bfd_vma address, bfd_vma value, bfd_vma addend));
223 /* Relocate a particular location by a howto and a value. */
224 extern bfd_reloc_status_type _bfd_relocate_contents
225 PARAMS ((const reloc_howto_type *, bfd *, bfd_vma, bfd_byte *));
227 /* Macros to tell if bfds are read or write enabled.
229 Note that bfds open for read may be scribbled into if the fd passed
230 to bfd_fdopenr is actually open both for read and write
231 simultaneously. However an output bfd will never be open for
232 read. Therefore sometimes you want to check bfd_read_p or
233 !bfd_read_p, and only sometimes bfd_write_p.
236 #define bfd_read_p(abfd) ((abfd)->direction == read_direction || (abfd)->direction == both_direction)
237 #define bfd_write_p(abfd) ((abfd)->direction == write_direction || (abfd)->direction == both_direction)
239 void bfd_assert PARAMS ((char*,int));
241 #define BFD_ASSERT(x) \
242 { if (!(x)) bfd_assert(__FILE__,__LINE__); }
245 { bfd_assert(__FILE__,__LINE__); }
247 FILE * bfd_cache_lookup_worker PARAMS ((bfd *));
249 extern bfd *bfd_last_cache;
251 /* Now Steve, what's the story here? */
256 #define itos(x) ((char*)(x))
257 #define stoi(x) ((int)(x))
260 /* Generic routine for close_and_cleanup is really just bfd_true. */
261 #define bfd_generic_close_and_cleanup bfd_true
263 /* List of supported target vectors, and the default vector (if
264 bfd_default_vector[0] is NULL, there is no default). */
265 extern bfd_target *bfd_target_vector[];
266 extern bfd_target *bfd_default_vector[];
268 /* And more follows */
271 bfd_check_init PARAMS ((void));
274 bfd_write_bigendian_4byte_int PARAMS ((bfd *abfd, int i));
277 bfd_log2 PARAMS ((bfd_vma x));
279 #define BFD_CACHE_MAX_OPEN 10
280 extern bfd *bfd_last_cache;
282 #define bfd_cache_lookup(x) \
283 ((x)==bfd_last_cache? \
284 (FILE*)(bfd_last_cache->iostream): \
285 bfd_cache_lookup_worker(x))
287 bfd_cache_close PARAMS ((bfd *abfd));
290 bfd_open_file PARAMS ((bfd *abfd));
293 bfd_cache_lookup_worker PARAMS ((bfd *abfd));
296 bfd_constructor_entry PARAMS ((bfd *abfd,
297 asymbol **symbol_ptr_ptr,
300 const struct reloc_howto_struct *
301 bfd_default_reloc_type_lookup
302 PARAMS ((bfd *abfd AND
303 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));