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. */
64 #define bfd_ardata(bfd) ((bfd)->tdata.aout_ar_data)
66 /* Goes in bfd's arelt_data slot */
68 char * arch_header
; /* it's actually a string */
69 unsigned int parsed_size
; /* octets of filesize not including ar_hdr */
70 char *filename
; /* null-terminated */
73 #define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size)
75 char *zalloc
PARAMS ((bfd_size_type size
));
77 /* These routines allocate and free things on the BFD's obstack. Note
78 that realloc can never occur in place. */
80 PTR bfd_alloc
PARAMS ((bfd
*abfd
, size_t size
));
81 PTR bfd_zalloc
PARAMS ((bfd
*abfd
, size_t size
));
82 PTR bfd_realloc
PARAMS ((bfd
*abfd
, PTR orig
, size_t new));
83 void bfd_alloc_grow
PARAMS ((bfd
*abfd
, PTR thing
, size_t size
));
84 PTR bfd_alloc_finish
PARAMS ((bfd
*abfd
));
85 PTR bfd_alloc_by_size_t
PARAMS ((bfd
*abfd
, size_t wanted
));
87 #define bfd_release(x,y) (void) obstack_free(&(x->memory),y)
90 bfd_size_type bfd_read
PARAMS ((PTR ptr
, bfd_size_type size
,
91 bfd_size_type nitems
, bfd
*abfd
));
92 bfd_size_type bfd_write
PARAMS ((CONST PTR ptr
, bfd_size_type size
,
93 bfd_size_type nitems
, bfd
*abfd
));
94 int bfd_seek
PARAMS ((bfd
* CONST abfd
, CONST file_ptr fp
,
95 CONST
int direction
));
96 long bfd_tell
PARAMS ((bfd
*abfd
));
98 int bfd_flush
PARAMS ((bfd
*abfd
));
99 int bfd_stat
PARAMS ((bfd
*abfd
, struct stat
*));
101 bfd
* _bfd_create_empty_archive_element_shell
PARAMS ((bfd
*obfd
));
102 bfd
* look_for_bfd_in_cache
PARAMS ((bfd
*arch_bfd
, file_ptr index
));
103 boolean _bfd_generic_mkarchive
PARAMS ((bfd
*abfd
));
104 struct areltdata
* snarf_ar_hdr
PARAMS ((bfd
*abfd
));
105 bfd_target
* bfd_generic_archive_p
PARAMS ((bfd
*abfd
));
106 boolean bfd_slurp_armap
PARAMS ((bfd
*abfd
));
107 boolean bfd_slurp_bsd_armap_f2
PARAMS ((bfd
*abfd
));
108 #define bfd_slurp_bsd_armap bfd_slurp_armap
109 #define bfd_slurp_coff_armap bfd_slurp_armap
110 boolean _bfd_slurp_extended_name_table
PARAMS ((bfd
*abfd
));
111 boolean _bfd_write_archive_contents
PARAMS ((bfd
*abfd
));
112 bfd
* new_bfd
PARAMS ((void));
114 #define DEFAULT_STRING_SPACE_SIZE 0x2000
115 boolean bfd_add_to_string_table
PARAMS ((char **table
, char *new_string
,
116 unsigned int *table_length
,
119 boolean bfd_false
PARAMS ((bfd
*ignore
));
120 boolean bfd_true
PARAMS ((bfd
*ignore
));
121 PTR bfd_nullvoidptr
PARAMS ((bfd
*ignore
));
122 int bfd_0
PARAMS ((bfd
*ignore
));
123 unsigned int bfd_0u
PARAMS ((bfd
*ignore
));
124 void bfd_void
PARAMS ((bfd
*ignore
));
126 bfd
* new_bfd_contained_in
PARAMS ((bfd
*));
127 boolean _bfd_dummy_new_section_hook
PARAMS ((bfd
*ignore
, asection
*newsect
));
128 char * _bfd_dummy_core_file_failing_command
PARAMS ((bfd
*abfd
));
129 int _bfd_dummy_core_file_failing_signal
PARAMS ((bfd
*abfd
));
130 boolean _bfd_dummy_core_file_matches_executable_p
PARAMS ((bfd
*core_bfd
,
132 bfd_target
* _bfd_dummy_target
PARAMS ((bfd
*abfd
));
134 void bfd_dont_truncate_arname
PARAMS ((bfd
*abfd
, CONST
char *filename
,
136 void bfd_bsd_truncate_arname
PARAMS ((bfd
*abfd
, CONST
char *filename
,
138 void bfd_gnu_truncate_arname
PARAMS ((bfd
*abfd
, CONST
char *filename
,
141 boolean bsd_write_armap
PARAMS ((bfd
*arch
, unsigned int elength
,
142 struct orl
*map
, unsigned int orl_count
, int stridx
));
144 boolean coff_write_armap
PARAMS ((bfd
*arch
, unsigned int elength
,
145 struct orl
*map
, unsigned int orl_count
, int stridx
));
147 bfd
* bfd_generic_openr_next_archived_file
PARAMS ((bfd
*archive
,
150 int bfd_generic_stat_arch_elt
PARAMS ((bfd
*, struct stat
*));
152 boolean bfd_generic_get_section_contents
PARAMS ((bfd
*abfd
, sec_ptr section
,
153 PTR location
, file_ptr offset
,
154 bfd_size_type count
));
156 boolean bfd_generic_set_section_contents
PARAMS ((bfd
*abfd
, sec_ptr section
,
157 PTR location
, file_ptr offset
,
158 bfd_size_type count
));
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 archive add symbol routine. */
182 extern boolean _bfd_generic_link_add_archive_symbols
183 PARAMS ((bfd
*, struct bfd_link_info
*,
184 boolean (*checkfn
) (bfd
*, struct bfd_link_info
*, boolean
*)));
186 /* Forward declaration to avoid prototype errors. */
187 typedef struct bfd_link_hash_entry _bfd_link_hash_entry
;
189 /* Generic routine to add a single symbol. */
190 extern boolean _bfd_generic_link_add_one_symbol
191 PARAMS ((struct bfd_link_info
*, bfd
*, const char *name
, flagword
,
192 asection
*, bfd_vma
, const char *, boolean copy
,
193 struct bfd_link_hash_entry
**));
195 /* Generic link routine. */
196 extern boolean _bfd_generic_final_link
197 PARAMS ((bfd
*, struct bfd_link_info
*));
199 /* Default link order processing routine. */
200 extern boolean _bfd_default_link_order
201 PARAMS ((bfd
*, struct bfd_link_info
*, asection
*,
202 struct bfd_link_order
*));
204 /* Final link relocation routine. */
205 extern bfd_reloc_status_type _bfd_final_link_relocate
206 PARAMS ((const reloc_howto_type
*, bfd
*, asection
*, bfd_byte
*,
207 bfd_vma address
, bfd_vma value
, bfd_vma addend
));
209 /* Relocate a particular location by a howto and a value. */
210 extern bfd_reloc_status_type _bfd_relocate_contents
211 PARAMS ((const reloc_howto_type
*, bfd
*, bfd_vma
, bfd_byte
*));
213 /* Macros to tell if bfds are read or write enabled.
215 Note that bfds open for read may be scribbled into if the fd passed
216 to bfd_fdopenr is actually open both for read and write
217 simultaneously. However an output bfd will never be open for
218 read. Therefore sometimes you want to check bfd_read_p or
219 !bfd_read_p, and only sometimes bfd_write_p.
222 #define bfd_read_p(abfd) ((abfd)->direction == read_direction || (abfd)->direction == both_direction)
223 #define bfd_write_p(abfd) ((abfd)->direction == write_direction || (abfd)->direction == both_direction)
225 void bfd_assert
PARAMS ((char*,int));
227 #define BFD_ASSERT(x) \
228 { if (!(x)) bfd_assert(__FILE__,__LINE__); }
231 { bfd_assert(__FILE__,__LINE__); }
233 FILE * bfd_cache_lookup_worker
PARAMS ((bfd
*));
235 extern bfd
*bfd_last_cache
;
237 /* Now Steve, what's the story here? */
242 #define itos(x) ((char*)(x))
243 #define stoi(x) ((int)(x))
246 /* Generic routine for close_and_cleanup is really just bfd_true. */
247 #define bfd_generic_close_and_cleanup bfd_true
249 /* List of supported target vectors, and the default vector (if
250 default_vector[0] is NULL, there is no default). */
251 extern bfd_target
*target_vector
[];
252 extern bfd_target
*default_vector
[];
254 /* And more follows */
257 bfd_check_init
PARAMS ((void));
260 bfd_xmalloc
PARAMS ((bfd_size_type size
));
263 bfd_xmalloc_by_size_t
PARAMS ((size_t size
));
266 bfd_write_bigendian_4byte_int
PARAMS ((bfd
*abfd
, int i
));
269 bfd_log2
PARAMS ((bfd_vma x
));
271 #define BFD_CACHE_MAX_OPEN 10
272 extern bfd
*bfd_last_cache
;
274 #define bfd_cache_lookup(x) \
275 ((x)==bfd_last_cache? \
276 (FILE*)(bfd_last_cache->iostream): \
277 bfd_cache_lookup_worker(x))
279 bfd_cache_close
PARAMS ((bfd
*abfd
));
282 bfd_open_file
PARAMS ((bfd
*abfd
));
285 bfd_cache_lookup_worker
PARAMS ((bfd
*abfd
));
288 bfd_constructor_entry
PARAMS ((bfd
*abfd
,
289 asymbol
**symbol_ptr_ptr
,
292 const struct reloc_howto_struct
*
293 bfd_default_reloc_type_lookup
294 PARAMS ((bfd
*abfd AND
295 bfd_reloc_code_real_type code
));
298 bfd_generic_relax_section
301 struct bfd_link_info
*,
306 bfd_generic_get_relocated_section_contents
PARAMS ((bfd
*abfd
,
307 struct bfd_link_info
*link_info
,
308 struct bfd_link_order
*link_order
,
310 boolean relocateable
,
314 bfd_generic_seclet_link
317 boolean relocateable
));
319 extern bfd_arch_info_type bfd_default_arch_struct
;
321 bfd_default_set_arch_mach
PARAMS ((bfd
*abfd
,
322 enum bfd_architecture arch
,
323 unsigned long mach
));
326 bfd_arch_init
PARAMS ((void));
329 bfd_arch_linkin
PARAMS ((bfd_arch_info_type
*ptr
));
331 CONST bfd_arch_info_type
*
332 bfd_default_compatible
333 PARAMS ((CONST bfd_arch_info_type
*a
,
334 CONST bfd_arch_info_type
*b
));
337 bfd_default_scan
PARAMS ((CONST
struct bfd_arch_info
*info
, CONST
char *string
));
339 struct elf_internal_shdr
*
340 bfd_elf_find_section
PARAMS ((bfd
*abfd
, char *name
));