1 /* Main header file for the bfd library -- portable access to object files.
2 ==> The bfd.h file is generated from bfd-in.h and various .c files; if you
3 ==> change it, your changes will probably be lost.
4 Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
5 Contributed by Cygnus Support.
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
23 /* bfd.h -- The only header file required by users of the bfd library
25 The bfd.h file is generated from bfd-in.h and various .c files; if you
26 change it, your changes will probably be lost.
28 All the prototypes and definitions following the comment "THE FOLLOWING
29 IS EXTRACTED FROM THE SOURCE" are extracted from the source files for
30 BFD. If you change it, someone oneday will extract it from the source
31 again, and your changes will be lost. To save yourself from this bind,
32 change the definitions in the source in the bfd directory. Type "make
33 docs" and then "make headers" in that directory, and magically this file
34 will change to reflect your changes.
36 If you don't have the tools to perform the extraction, then you are
37 safe from someone on your system trampling over your header files.
38 You should still maintain the equivalence between the source and this
39 file though; every change you make to the .c file should be reflected
42 #ifndef __BFD_H_SEEN__
43 #define __BFD_H_SEEN__
48 #define BFD_VERSION "2.2"
50 #define BFD_ARCH_SIZE @WORDSIZE@
52 #if BFD_ARCH_SIZE >= 64
56 #ifndef FOPEN_AUT /* WAG */
57 /* INSERT SYSDEP HERE */
61 /* forward declaration */
62 typedef struct _bfd bfd;
64 /* To squelch erroneous compiler warnings ("illegal pointer
65 combination") from the SVR3 compiler, we would like to typedef
66 boolean to int (it doesn't like functions which return boolean.
67 Making sure they are never implicitly declared to return int
68 doesn't seem to help). But this file is not configured based on
70 /* General rules: functions which are boolean return true on success
71 and false on failure (unless they're a predicate). -- bfd.doc */
72 /* I'm sure this is going to break something and someone is going to
73 force me to change it. */
74 /* typedef enum boolean {false, true} boolean; */
75 /* Yup, SVR4 has a "typedef enum boolean" in <sys/types.h> -fnf */
76 typedef enum bfd_boolean {false, true} boolean;
78 /* A pointer to a position in a file. */
79 /* FIXME: This should be using off_t from <sys/types.h>.
80 For now, try to avoid breaking stuff by not including <sys/types.h> here.
81 This will break on systems with 64-bit file offsets (e.g. 4.4BSD).
82 Probably the best long-term answer is to avoid using file_ptr AND off_t
83 in this header file, and to handle this in the BFD implementation
84 rather than in its interface. */
85 /* typedef off_t file_ptr; */
86 typedef long int file_ptr;
88 /* Support for different sizes of target format ints and addresses. If the
89 host implements 64-bit values, it defines HOST_64_BIT to be the appropriate
90 type. Otherwise, this code will fall back on gcc's "long long" type if gcc
91 is being used. HOST_64_BIT must be defined in such a way as to be a valid
92 type name by itself or with "unsigned" prefixed. It should be a signed
95 If neither is the case, then compilation will fail if 64-bit targets are
96 requested. If you don't request any 64-bit targets, you should be safe. */
100 #if defined (__GNUC__) && !defined (HOST_64_BIT)
101 #define HOST_64_BIT long long
102 typedef HOST_64_BIT int64_type;
103 typedef unsigned HOST_64_BIT uint64_type;
106 typedef unsigned HOST_64_BIT bfd_vma;
107 typedef HOST_64_BIT bfd_signed_vma;
108 typedef unsigned HOST_64_BIT bfd_size_type;
109 typedef unsigned HOST_64_BIT symvalue;
110 #define fprintf_vma(s,x) \
111 fprintf(s,"%08x%08x", uint64_typeHIGH(x), uint64_typeLOW(x))
112 #else /* not BFD64 */
114 /* Represent a target address. Also used as a generic unsigned type
115 which is guaranteed to be big enough to hold any arithmetic types
116 we need to deal with. */
117 typedef unsigned long bfd_vma;
119 /* A generic signed type which is guaranteed to be big enough to hold any
120 arithmetic types we need to deal with. Can be assumed to be compatible
121 with bfd_vma in the same way that signed and unsigned ints are compatible
122 (as parameters, in assignment, etc). */
123 typedef long bfd_signed_vma;
125 typedef unsigned long symvalue;
126 typedef unsigned long bfd_size_type;
128 /* Print a bfd_vma x on stream s. */
129 #define fprintf_vma(s,x) fprintf(s, "%08lx", x)
130 #endif /* not BFD64 */
131 #define printf_vma(x) fprintf_vma(stdout,x)
133 typedef unsigned int flagword; /* 32 bits of flags */
137 typedef enum bfd_format {
138 bfd_unknown = 0, /* file format is unknown */
139 bfd_object, /* linker/assember/compiler output */
140 bfd_archive, /* object archive file */
141 bfd_core, /* core dump */
142 bfd_type_end} /* marks the end; don't use it! */
145 /* Object file flag values */
146 #define NO_FLAGS 0x00
147 #define HAS_RELOC 0x01
149 #define HAS_LINENO 0x04
150 #define HAS_DEBUG 0x08
151 #define HAS_SYMS 0x10
152 #define HAS_LOCALS 0x20
155 #define D_PAGED 0x100
156 #define BFD_IS_RELAXABLE 0x200
158 /* symbols and relocation */
160 typedef unsigned long symindex;
162 #define BFD_NO_MORE_SYMBOLS ((symindex) ~0)
164 typedef enum bfd_symclass {
165 bfd_symclass_unknown = 0,
166 bfd_symclass_fcommon, /* fortran common symbols */
167 bfd_symclass_global, /* global symbol, what a surprise */
168 bfd_symclass_debugger, /* some debugger symbol */
169 bfd_symclass_undefined /* none known */
173 typedef int symtype; /* Who knows, yet? */
176 /* general purpose part of a symbol;
177 target specific parts will be found in libcoff.h, liba.out.h etc */
180 #define bfd_get_section(x) ((x)->section)
181 #define bfd_get_output_section(x) ((x)->section->output_section)
182 #define bfd_set_section(x,y) ((x)->section) = (y)
183 #define bfd_asymbol_base(x) ((x)->section->vma)
184 #define bfd_asymbol_value(x) (bfd_asymbol_base(x) + (x)->value)
185 #define bfd_asymbol_name(x) ((x)->name)
186 /*Perhaps future: #define bfd_asymbol_bfd(x) ((x)->section->owner)*/
187 #define bfd_asymbol_bfd(x) ((x)->the_bfd)
188 #define bfd_asymbol_flavour(x) (bfd_asymbol_bfd(x)->xvec->flavour)
190 /* This is a type pun with struct ranlib on purpose! */
191 typedef struct carsym {
193 file_ptr file_offset; /* look here to find the file */
194 } carsym; /* to make these you call a carsymogen */
197 /* Used in generating armaps. Perhaps just a forward definition would do? */
198 struct orl { /* output ranlib */
199 char **name; /* symbol name */
200 file_ptr pos; /* bfd* or file position */
201 int namidx; /* index into string table */
206 /* Linenumber stuff */
207 typedef struct lineno_cache_entry {
208 unsigned int line_number; /* Linenumber from start of function*/
210 struct symbol_cache_entry *sym; /* Function name */
211 unsigned long offset; /* Offset into section */
215 /* object and core file sections */
218 #define align_power(addr, align) \
219 ( ((addr) + ((1<<(align))-1)) & (-1 << (align)))
221 typedef struct sec *sec_ptr;
223 #define bfd_get_section_name(bfd, ptr) ((ptr)->name + 0)
224 #define bfd_get_section_vma(bfd, ptr) ((ptr)->vma + 0)
225 #define bfd_get_section_alignment(bfd, ptr) ((ptr)->alignment_power + 0)
226 #define bfd_section_name(bfd, ptr) ((ptr)->name)
227 #define bfd_section_size(bfd, ptr) (bfd_get_section_size_before_reloc(ptr))
228 #define bfd_section_vma(bfd, ptr) ((ptr)->vma)
229 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power)
230 #define bfd_get_section_flags(bfd, ptr) ((ptr)->flags + 0)
231 #define bfd_get_section_userdata(bfd, ptr) ((ptr)->userdata)
233 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0)
235 #define bfd_set_section_vma(bfd, ptr, val) (((ptr)->vma = (ptr)->lma= (val)), ((ptr)->user_set_vma = true), true)
236 #define bfd_set_section_alignment(bfd, ptr, val) (((ptr)->alignment_power = (val)),true)
237 #define bfd_set_section_userdata(bfd, ptr, val) (((ptr)->userdata = (val)),true)
239 typedef struct stat stat_type;
241 /** Error handling */
243 typedef enum bfd_error {
244 no_error = 0, system_call_error, invalid_target,
245 wrong_format, invalid_operation, no_memory,
246 no_symbols, no_relocation_info,
247 no_more_archived_files, malformed_archive,
248 symbol_not_found, file_not_recognized,
249 file_ambiguously_recognized, no_contents,
250 bfd_error_nonrepresentable_section,
251 no_debug_section, bad_value,
253 /* An input file is shorter than expected. */
256 invalid_error_code} bfd_ec;
258 extern bfd_ec bfd_error;
259 struct reloc_cache_entry;
263 typedef struct bfd_error_vector {
264 void (* nonrepresentable_section ) PARAMS ((CONST bfd *CONST abfd,
265 CONST char *CONST name));
266 void (* undefined_symbol) PARAMS ((CONST struct reloc_cache_entry *rel,
267 CONST struct bfd_seclet *sec));
268 void (* reloc_value_truncated) PARAMS ((CONST struct
269 reloc_cache_entry *rel,
270 struct bfd_seclet *sec));
272 void (* reloc_dangerous) PARAMS ((CONST struct reloc_cache_entry *rel,
273 CONST struct bfd_seclet *sec));
275 } bfd_error_vector_type;
277 CONST char *bfd_errmsg PARAMS ((bfd_ec error_tag));
278 void bfd_perror PARAMS ((CONST char *message));
281 typedef enum bfd_print_symbol
283 bfd_print_symbol_name,
284 bfd_print_symbol_more,
286 } bfd_print_symbol_type;
289 /* Information about a symbol that nm needs. */
291 typedef struct _symbol_info
295 CONST char *name; /* Symbol name. */
296 char stab_other; /* Unused. */
297 short stab_desc; /* Info for N_TYPE. */
298 CONST char *stab_name;
301 /* The code that implements targets can initialize a jump table with this
302 macro. It must name all its routines the same way (a prefix plus
303 the standard routine suffix), or it must #define the routines that
304 are not so named, before calling JUMP_TABLE in the initializer. */
306 /* Semi-portable string concatenation in cpp */
309 #define CAT(a,b) a##b
310 #define CAT3(a,b,c) a##b##c
312 #define CAT(a,b) a/**/b
313 #define CAT3(a,b,c) a/**/b/**/c
317 #define JUMP_TABLE(NAME)\
318 CAT(NAME,_core_file_failing_command),\
319 CAT(NAME,_core_file_failing_signal),\
320 CAT(NAME,_core_file_matches_executable_p),\
321 CAT(NAME,_slurp_armap),\
322 CAT(NAME,_slurp_extended_name_table),\
323 CAT(NAME,_truncate_arname),\
324 CAT(NAME,_write_armap),\
325 CAT(NAME,_close_and_cleanup), \
326 CAT(NAME,_set_section_contents),\
327 CAT(NAME,_get_section_contents),\
328 CAT(NAME,_new_section_hook),\
329 CAT(NAME,_get_symtab_upper_bound),\
330 CAT(NAME,_get_symtab),\
331 CAT(NAME,_get_reloc_upper_bound),\
332 CAT(NAME,_canonicalize_reloc),\
333 CAT(NAME,_make_empty_symbol),\
334 CAT(NAME,_print_symbol),\
335 CAT(NAME,_get_symbol_info),\
336 CAT(NAME,_get_lineno),\
337 CAT(NAME,_set_arch_mach),\
338 CAT(NAME,_openr_next_archived_file),\
339 CAT(NAME,_find_nearest_line),\
340 CAT(NAME,_generic_stat_arch_elt),\
341 CAT(NAME,_sizeof_headers),\
342 CAT(NAME,_bfd_debug_info_start),\
343 CAT(NAME,_bfd_debug_info_end),\
344 CAT(NAME,_bfd_debug_info_accumulate),\
345 CAT(NAME,_bfd_get_relocated_section_contents),\
346 CAT(NAME,_bfd_relax_section),\
347 CAT(NAME,_bfd_seclet_link),\
348 CAT(NAME,_bfd_reloc_type_lookup),\
349 CAT(NAME,_bfd_make_debug_symbol)
351 #define COFF_SWAP_TABLE (PTR) &bfd_coff_std_swap_table
354 /* User program access to BFD facilities */
356 extern CONST short _bfd_host_big_endian;
357 #define HOST_BYTE_ORDER_BIG_P (*(char *)&_bfd_host_big_endian)
361 /* Cast from const char * to char * so that caller can assign to
362 a char * without a warning. */
363 #define bfd_get_filename(abfd) ((char *) (abfd)->filename)
364 #define bfd_get_format(abfd) ((abfd)->format)
365 #define bfd_get_target(abfd) ((abfd)->xvec->name)
366 #define bfd_get_file_flags(abfd) ((abfd)->flags)
367 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
368 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
369 #define bfd_my_archive(abfd) ((abfd)->my_archive)
370 #define bfd_has_map(abfd) ((abfd)->has_armap)
371 #define bfd_header_twiddle_required(abfd) \
372 ((((abfd)->xvec->header_byteorder_big_p) \
373 != (boolean)HOST_BYTE_ORDER_BIG_P) ? true:false)
375 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
376 #define bfd_usrdata(abfd) ((abfd)->usrdata)
378 #define bfd_get_start_address(abfd) ((abfd)->start_address)
379 #define bfd_get_symcount(abfd) ((abfd)->symcount)
380 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
381 #define bfd_count_sections(abfd) ((abfd)->section_count)
382 #define bfd_get_architecture(abfd) ((abfd)->obj_arch)
383 #define bfd_get_machine(abfd) ((abfd)->obj_machine)
385 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
391 /* And more from the source. */