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[deliverable/binutils-gdb.git] / bfd / bfd-in2.h
1 /* Main header file for the bfd library -- portable access to object files.
2 Copyright 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
4
5 ** NOTE: bfd.h and bfd-in2.h are GENERATED files. Don't change them;
6 ** instead, change bfd-in.h or the other BFD source files processed to
7 ** generate these files.
8
9 This file is part of BFD, the Binary File Descriptor library.
10
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
24
25 /* bfd.h -- The only header file required by users of the bfd library
26
27 The bfd.h file is generated from bfd-in.h and various .c files; if you
28 change it, your changes will probably be lost.
29
30 All the prototypes and definitions following the comment "THE FOLLOWING
31 IS EXTRACTED FROM THE SOURCE" are extracted from the source files for
32 BFD. If you change it, someone oneday will extract it from the source
33 again, and your changes will be lost. To save yourself from this bind,
34 change the definitions in the source in the bfd directory. Type "make
35 docs" and then "make headers" in that directory, and magically this file
36 will change to reflect your changes.
37
38 If you don't have the tools to perform the extraction, then you are
39 safe from someone on your system trampling over your header files.
40 You should still maintain the equivalence between the source and this
41 file though; every change you make to the .c file should be reflected
42 here. */
43
44 #ifndef __BFD_H_SEEN__
45 #define __BFD_H_SEEN__
46
47 #include "ansidecl.h"
48 #include "obstack.h"
49
50 /* These two lines get substitutions done by commands in Makefile.in. */
51 #define BFD_VERSION "@VERSION@"
52 #define BFD_ARCH_SIZE @WORDSIZE@
53
54 #if BFD_ARCH_SIZE >= 64
55 #define BFD64
56 #endif
57
58 #ifndef INLINE
59 #if __GNUC__ >= 2
60 #define INLINE __inline__
61 #else
62 #define INLINE
63 #endif
64 #endif
65
66 /* 64-bit type definition (if any) from bfd's sysdep.h goes here */
67
68
69 /* forward declaration */
70 typedef struct _bfd bfd;
71
72 /* To squelch erroneous compiler warnings ("illegal pointer
73 combination") from the SVR3 compiler, we would like to typedef
74 boolean to int (it doesn't like functions which return boolean.
75 Making sure they are never implicitly declared to return int
76 doesn't seem to help). But this file is not configured based on
77 the host. */
78 /* General rules: functions which are boolean return true on success
79 and false on failure (unless they're a predicate). -- bfd.doc */
80 /* I'm sure this is going to break something and someone is going to
81 force me to change it. */
82 /* typedef enum boolean {false, true} boolean; */
83 /* Yup, SVR4 has a "typedef enum boolean" in <sys/types.h> -fnf */
84 /* It gets worse if the host also defines a true/false enum... -sts */
85 #ifndef TRUE_FALSE_ALREADY_DEFINED
86 typedef enum bfd_boolean {false, true} boolean;
87 #define BFD_TRUE_FALSE
88 #else
89 typedef enum bfd_boolean {bfd_false, bfd_true} boolean;
90 #endif
91
92 /* A pointer to a position in a file. */
93 /* FIXME: This should be using off_t from <sys/types.h>.
94 For now, try to avoid breaking stuff by not including <sys/types.h> here.
95 This will break on systems with 64-bit file offsets (e.g. 4.4BSD).
96 Probably the best long-term answer is to avoid using file_ptr AND off_t
97 in this header file, and to handle this in the BFD implementation
98 rather than in its interface. */
99 /* typedef off_t file_ptr; */
100 typedef long int file_ptr;
101
102 /* Support for different sizes of target format ints and addresses.
103 If the host implements 64-bit values, it defines BFD_HOST_64_BIT to
104 be the appropriate type. Otherwise, this code will fall back on
105 gcc's "long long" type if gcc is being used. BFD_HOST_64_BIT must
106 be defined in such a way as to be a valid type name by itself or
107 with "unsigned" prefixed. It should be a signed type by itself.
108
109 If neither is the case, then compilation will fail if 64-bit
110 targets are requested. If you don't request any 64-bit targets,
111 you should be safe. */
112
113 #ifdef BFD64
114
115 #if defined (__GNUC__) && !defined (BFD_HOST_64_BIT)
116 #define BFD_HOST_64_BIT long long
117 typedef BFD_HOST_64_BIT int64_type;
118 typedef unsigned BFD_HOST_64_BIT uint64_type;
119 #endif
120
121 #if !defined (uint64_type) && defined (__GNUC__)
122 #define uint64_type unsigned long long
123 #define int64_type long long
124 #endif
125 #ifndef uint64_typeLOW
126 #define uint64_typeLOW(x) ((unsigned long)(((x) & 0xffffffff)))
127 #define uint64_typeHIGH(x) ((unsigned long)(((x) >> 32) & 0xffffffff))
128 #endif
129
130 typedef unsigned BFD_HOST_64_BIT bfd_vma;
131 typedef BFD_HOST_64_BIT bfd_signed_vma;
132 typedef unsigned BFD_HOST_64_BIT bfd_size_type;
133 typedef unsigned BFD_HOST_64_BIT symvalue;
134 #ifndef fprintf_vma
135 #define fprintf_vma(s,x) \
136 fprintf(s,"%08lx%08lx", uint64_typeHIGH(x), uint64_typeLOW(x))
137 #define sprintf_vma(s,x) \
138 sprintf(s,"%08lx%08lx", uint64_typeHIGH(x), uint64_typeLOW(x))
139 #endif
140 #else /* not BFD64 */
141
142 /* Represent a target address. Also used as a generic unsigned type
143 which is guaranteed to be big enough to hold any arithmetic types
144 we need to deal with. */
145 typedef unsigned long bfd_vma;
146
147 /* A generic signed type which is guaranteed to be big enough to hold any
148 arithmetic types we need to deal with. Can be assumed to be compatible
149 with bfd_vma in the same way that signed and unsigned ints are compatible
150 (as parameters, in assignment, etc). */
151 typedef long bfd_signed_vma;
152
153 typedef unsigned long symvalue;
154 typedef unsigned long bfd_size_type;
155
156 /* Print a bfd_vma x on stream s. */
157 #define fprintf_vma(s,x) fprintf(s, "%08lx", x)
158 #define sprintf_vma(s,x) sprintf(s, "%08lx", x)
159 #endif /* not BFD64 */
160 #define printf_vma(x) fprintf_vma(stdout,x)
161
162 typedef unsigned int flagword; /* 32 bits of flags */
163 \f
164 /** File formats */
165
166 typedef enum bfd_format {
167 bfd_unknown = 0, /* file format is unknown */
168 bfd_object, /* linker/assember/compiler output */
169 bfd_archive, /* object archive file */
170 bfd_core, /* core dump */
171 bfd_type_end} /* marks the end; don't use it! */
172 bfd_format;
173
174 /* Values that may appear in the flags field of a BFD. These also
175 appear in the object_flags field of the bfd_target structure, where
176 they indicate the set of flags used by that backend (not all flags
177 are meaningful for all object file formats) (FIXME: at the moment,
178 the object_flags values have mostly just been copied from backend
179 to another, and are not necessarily correct). */
180
181 /* No flags. */
182 #define NO_FLAGS 0x00
183
184 /* BFD contains relocation entries. */
185 #define HAS_RELOC 0x01
186
187 /* BFD is directly executable. */
188 #define EXEC_P 0x02
189
190 /* BFD has line number information (basically used for F_LNNO in a
191 COFF header). */
192 #define HAS_LINENO 0x04
193
194 /* BFD has debugging information. */
195 #define HAS_DEBUG 0x08
196
197 /* BFD has symbols. */
198 #define HAS_SYMS 0x10
199
200 /* BFD has local symbols (basically used for F_LSYMS in a COFF
201 header). */
202 #define HAS_LOCALS 0x20
203
204 /* BFD is a dynamic object. */
205 #define DYNAMIC 0x40
206
207 /* Text section is write protected (if D_PAGED is not set, this is
208 like an a.out NMAGIC file) (the linker sets this by default, but
209 clears it for -r or -N). */
210 #define WP_TEXT 0x80
211
212 /* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the
213 linker sets this by default, but clears it for -r or -n or -N). */
214 #define D_PAGED 0x100
215
216 /* BFD is relaxable (this means that bfd_relax_section may be able to
217 do something) (sometimes bfd_relax_section can do something even if
218 this is not set). */
219 #define BFD_IS_RELAXABLE 0x200
220
221 /* This may be set before writing out a BFD to request using a
222 traditional format. For example, this is used to request that when
223 writing out an a.out object the symbols not be hashed to eliminate
224 duplicates. */
225 #define BFD_TRADITIONAL_FORMAT 0x400
226 \f
227 /* symbols and relocation */
228
229 /* A count of carsyms (canonical archive symbols). */
230 typedef unsigned long symindex;
231
232 #define BFD_NO_MORE_SYMBOLS ((symindex) ~0)
233
234 /* General purpose part of a symbol X;
235 target specific parts are in libcoff.h, libaout.h, etc. */
236
237 #define bfd_get_section(x) ((x)->section)
238 #define bfd_get_output_section(x) ((x)->section->output_section)
239 #define bfd_set_section(x,y) ((x)->section) = (y)
240 #define bfd_asymbol_base(x) ((x)->section->vma)
241 #define bfd_asymbol_value(x) (bfd_asymbol_base(x) + (x)->value)
242 #define bfd_asymbol_name(x) ((x)->name)
243 /*Perhaps future: #define bfd_asymbol_bfd(x) ((x)->section->owner)*/
244 #define bfd_asymbol_bfd(x) ((x)->the_bfd)
245 #define bfd_asymbol_flavour(x) (bfd_asymbol_bfd(x)->xvec->flavour)
246
247 /* A canonical archive symbol. */
248 /* This is a type pun with struct ranlib on purpose! */
249 typedef struct carsym {
250 char *name;
251 file_ptr file_offset; /* look here to find the file */
252 } carsym; /* to make these you call a carsymogen */
253
254
255 /* Used in generating armaps (archive tables of contents).
256 Perhaps just a forward definition would do? */
257 struct orl { /* output ranlib */
258 char **name; /* symbol name */
259 file_ptr pos; /* bfd* or file position */
260 int namidx; /* index into string table */
261 };
262
263 \f
264
265 /* Linenumber stuff */
266 typedef struct lineno_cache_entry {
267 unsigned int line_number; /* Linenumber from start of function*/
268 union {
269 struct symbol_cache_entry *sym; /* Function name */
270 unsigned long offset; /* Offset into section */
271 } u;
272 } alent;
273 \f
274 /* object and core file sections */
275
276 #define align_power(addr, align) \
277 ( ((addr) + ((1<<(align))-1)) & (-1 << (align)))
278
279 typedef struct sec *sec_ptr;
280
281 #define bfd_get_section_name(bfd, ptr) ((ptr)->name + 0)
282 #define bfd_get_section_vma(bfd, ptr) ((ptr)->vma + 0)
283 #define bfd_get_section_alignment(bfd, ptr) ((ptr)->alignment_power + 0)
284 #define bfd_section_name(bfd, ptr) ((ptr)->name)
285 #define bfd_section_size(bfd, ptr) (bfd_get_section_size_before_reloc(ptr))
286 #define bfd_section_vma(bfd, ptr) ((ptr)->vma)
287 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power)
288 #define bfd_get_section_flags(bfd, ptr) ((ptr)->flags + 0)
289 #define bfd_get_section_userdata(bfd, ptr) ((ptr)->userdata)
290
291 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0)
292
293 #define bfd_set_section_vma(bfd, ptr, val) (((ptr)->vma = (ptr)->lma= (val)), ((ptr)->user_set_vma = true), true)
294 #define bfd_set_section_alignment(bfd, ptr, val) (((ptr)->alignment_power = (val)),true)
295 #define bfd_set_section_userdata(bfd, ptr, val) (((ptr)->userdata = (val)),true)
296
297 typedef struct stat stat_type;
298 \f
299 typedef enum bfd_print_symbol
300 {
301 bfd_print_symbol_name,
302 bfd_print_symbol_more,
303 bfd_print_symbol_all
304 } bfd_print_symbol_type;
305
306 /* Information about a symbol that nm needs. */
307
308 typedef struct _symbol_info
309 {
310 symvalue value;
311 char type;
312 CONST char *name; /* Symbol name. */
313 char stab_other; /* Unused. */
314 short stab_desc; /* Info for N_TYPE. */
315 CONST char *stab_name;
316 } symbol_info;
317 \f
318 /* Hash table routines. There is no way to free up a hash table. */
319
320 /* An element in the hash table. Most uses will actually use a larger
321 structure, and an instance of this will be the first field. */
322
323 struct bfd_hash_entry
324 {
325 /* Next entry for this hash code. */
326 struct bfd_hash_entry *next;
327 /* String being hashed. */
328 const char *string;
329 /* Hash code. This is the full hash code, not the index into the
330 table. */
331 unsigned long hash;
332 };
333
334 /* A hash table. */
335
336 struct bfd_hash_table
337 {
338 /* The hash array. */
339 struct bfd_hash_entry **table;
340 /* The number of slots in the hash table. */
341 unsigned int size;
342 /* A function used to create new elements in the hash table. The
343 first entry is itself a pointer to an element. When this
344 function is first invoked, this pointer will be NULL. However,
345 having the pointer permits a hierarchy of method functions to be
346 built each of which calls the function in the superclass. Thus
347 each function should be written to allocate a new block of memory
348 only if the argument is NULL. */
349 struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
350 struct bfd_hash_table *,
351 const char *));
352 /* An obstack for this hash table. */
353 struct obstack memory;
354 };
355
356 /* Initialize a hash table. */
357 extern boolean bfd_hash_table_init
358 PARAMS ((struct bfd_hash_table *,
359 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
360 struct bfd_hash_table *,
361 const char *)));
362
363 /* Initialize a hash table specifying a size. */
364 extern boolean bfd_hash_table_init_n
365 PARAMS ((struct bfd_hash_table *,
366 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
367 struct bfd_hash_table *,
368 const char *),
369 unsigned int size));
370
371 /* Free up a hash table. */
372 extern void bfd_hash_table_free PARAMS ((struct bfd_hash_table *));
373
374 /* Look up a string in a hash table. If CREATE is true, a new entry
375 will be created for this string if one does not already exist. The
376 COPY argument must be true if this routine should copy the string
377 into newly allocated memory when adding an entry. */
378 extern struct bfd_hash_entry *bfd_hash_lookup
379 PARAMS ((struct bfd_hash_table *, const char *, boolean create,
380 boolean copy));
381
382 /* Base method for creating a hash table entry. */
383 extern struct bfd_hash_entry *bfd_hash_newfunc
384 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *,
385 const char *));
386
387 /* Grab some space for a hash table entry. */
388 extern PTR bfd_hash_allocate PARAMS ((struct bfd_hash_table *,
389 unsigned int));
390
391 /* Traverse a hash table in a random order, calling a function on each
392 element. If the function returns false, the traversal stops. The
393 INFO argument is passed to the function. */
394 extern void bfd_hash_traverse PARAMS ((struct bfd_hash_table *,
395 boolean (*) (struct bfd_hash_entry *,
396 PTR),
397 PTR info));
398 \f
399 /* Semi-portable string concatenation in cpp.
400 The CAT4 hack is to avoid a problem with some strict ANSI C preprocessors.
401 The problem is, "32_" is not a valid preprocessing token, and we don't
402 want extra underscores (e.g., "nlm_32_"). The XCAT2 macro will cause the
403 inner CAT macros to be evaluated first, producing still-valid pp-tokens.
404 Then the final concatenation can be done. (Sigh.) */
405 #ifndef CAT
406 #ifdef SABER
407 #define CAT(a,b) a##b
408 #define CAT3(a,b,c) a##b##c
409 #define CAT4(a,b,c,d) a##b##c##d
410 #else
411 #if defined(__STDC__) || defined(ALMOST_STDC)
412 #define CAT(a,b) a##b
413 #define CAT3(a,b,c) a##b##c
414 #define XCAT2(a,b) CAT(a,b)
415 #define CAT4(a,b,c,d) XCAT2(CAT(a,b),CAT(c,d))
416 #else
417 #define CAT(a,b) a/**/b
418 #define CAT3(a,b,c) a/**/b/**/c
419 #define CAT4(a,b,c,d) a/**/b/**/c/**/d
420 #endif
421 #endif
422 #endif
423
424 #define COFF_SWAP_TABLE (PTR) &bfd_coff_std_swap_table
425 \f
426 /* User program access to BFD facilities */
427
428 /* Direct I/O routines, for programs which know more about the object
429 file than BFD does. Use higher level routines if possible. */
430
431 extern bfd_size_type bfd_read
432 PARAMS ((PTR, bfd_size_type size, bfd_size_type nitems, bfd *abfd));
433 extern bfd_size_type bfd_write
434 PARAMS ((const PTR, bfd_size_type size, bfd_size_type nitems, bfd *abfd));
435 extern int bfd_seek PARAMS ((bfd *abfd, file_ptr fp, int direction));
436 extern long bfd_tell PARAMS ((bfd *abfd));
437 extern int bfd_flush PARAMS ((bfd *abfd));
438 extern int bfd_stat PARAMS ((bfd *abfd, struct stat *));
439
440 /* Cast from const char * to char * so that caller can assign to
441 a char * without a warning. */
442 #define bfd_get_filename(abfd) ((char *) (abfd)->filename)
443 #define bfd_get_cacheable(abfd) ((abfd)->cacheable)
444 #define bfd_get_format(abfd) ((abfd)->format)
445 #define bfd_get_target(abfd) ((abfd)->xvec->name)
446 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour)
447 #define bfd_get_file_flags(abfd) ((abfd)->flags)
448 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
449 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
450 #define bfd_my_archive(abfd) ((abfd)->my_archive)
451 #define bfd_has_map(abfd) ((abfd)->has_armap)
452
453 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
454 #define bfd_usrdata(abfd) ((abfd)->usrdata)
455
456 #define bfd_get_start_address(abfd) ((abfd)->start_address)
457 #define bfd_get_symcount(abfd) ((abfd)->symcount)
458 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
459 #define bfd_count_sections(abfd) ((abfd)->section_count)
460
461 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
462
463 #define bfd_set_cacheable(abfd,bool) (((abfd)->cacheable = (bool)), true)
464
465 /* Byte swapping routines. */
466
467 bfd_vma bfd_getb64 PARAMS ((const unsigned char *));
468 bfd_vma bfd_getl64 PARAMS ((const unsigned char *));
469 bfd_signed_vma bfd_getb_signed_64 PARAMS ((const unsigned char *));
470 bfd_signed_vma bfd_getl_signed_64 PARAMS ((const unsigned char *));
471 bfd_vma bfd_getb32 PARAMS ((const unsigned char *));
472 bfd_vma bfd_getl32 PARAMS ((const unsigned char *));
473 bfd_signed_vma bfd_getb_signed_32 PARAMS ((const unsigned char *));
474 bfd_signed_vma bfd_getl_signed_32 PARAMS ((const unsigned char *));
475 bfd_vma bfd_getb16 PARAMS ((const unsigned char *));
476 bfd_vma bfd_getl16 PARAMS ((const unsigned char *));
477 bfd_signed_vma bfd_getb_signed_16 PARAMS ((const unsigned char *));
478 bfd_signed_vma bfd_getl_signed_16 PARAMS ((const unsigned char *));
479 void bfd_putb64 PARAMS ((bfd_vma, unsigned char *));
480 void bfd_putl64 PARAMS ((bfd_vma, unsigned char *));
481 void bfd_putb32 PARAMS ((bfd_vma, unsigned char *));
482 void bfd_putl32 PARAMS ((bfd_vma, unsigned char *));
483 void bfd_putb16 PARAMS ((bfd_vma, unsigned char *));
484 void bfd_putl16 PARAMS ((bfd_vma, unsigned char *));
485 \f
486 /* Externally visible ECOFF routines. */
487
488 #if defined(__STDC__) || defined(ALMOST_STDC)
489 struct ecoff_debug_info;
490 struct ecoff_debug_swap;
491 struct ecoff_extr;
492 struct symbol_cache_entry;
493 struct bfd_link_info;
494 #endif
495 extern bfd_vma bfd_ecoff_get_gp_value PARAMS ((bfd * abfd));
496 extern boolean bfd_ecoff_set_gp_value PARAMS ((bfd *abfd, bfd_vma gp_value));
497 extern boolean bfd_ecoff_set_regmasks
498 PARAMS ((bfd *abfd, unsigned long gprmask, unsigned long fprmask,
499 unsigned long *cprmask));
500 extern PTR bfd_ecoff_debug_init
501 PARAMS ((bfd *output_bfd, struct ecoff_debug_info *output_debug,
502 const struct ecoff_debug_swap *output_swap,
503 struct bfd_link_info *));
504 extern void bfd_ecoff_debug_free
505 PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
506 const struct ecoff_debug_swap *output_swap,
507 struct bfd_link_info *));
508 extern boolean bfd_ecoff_debug_accumulate
509 PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
510 const struct ecoff_debug_swap *output_swap,
511 bfd *input_bfd, struct ecoff_debug_info *input_debug,
512 const struct ecoff_debug_swap *input_swap,
513 struct bfd_link_info *));
514 extern boolean bfd_ecoff_debug_accumulate_other
515 PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
516 const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
517 struct bfd_link_info *));
518 extern boolean bfd_ecoff_debug_externals
519 PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
520 const struct ecoff_debug_swap *swap,
521 boolean relocateable,
522 boolean (*get_extr) (struct symbol_cache_entry *,
523 struct ecoff_extr *),
524 void (*set_index) (struct symbol_cache_entry *,
525 bfd_size_type)));
526 extern boolean bfd_ecoff_debug_one_external
527 PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
528 const struct ecoff_debug_swap *swap,
529 const char *name, struct ecoff_extr *esym));
530 extern bfd_size_type bfd_ecoff_debug_size
531 PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
532 const struct ecoff_debug_swap *swap));
533 extern boolean bfd_ecoff_write_debug
534 PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
535 const struct ecoff_debug_swap *swap, file_ptr where));
536 extern boolean bfd_ecoff_write_accumulated_debug
537 PARAMS ((PTR handle, bfd *abfd, struct ecoff_debug_info *debug,
538 const struct ecoff_debug_swap *swap,
539 struct bfd_link_info *info, file_ptr where));
540
541 /* Externally visible ELF routines. */
542
543 extern boolean bfd_elf32_record_link_assignment
544 PARAMS ((bfd *, struct bfd_link_info *, const char *));
545 extern boolean bfd_elf64_record_link_assignment
546 PARAMS ((bfd *, struct bfd_link_info *, const char *));
547 extern boolean bfd_elf32_size_dynamic_sections
548 PARAMS ((bfd *, const char *, const char *, boolean,
549 struct bfd_link_info *, struct sec **));
550 extern boolean bfd_elf64_size_dynamic_sections
551 PARAMS ((bfd *, const char *, const char *, boolean,
552 struct bfd_link_info *, struct sec **));
553 extern void bfd_elf_set_dt_needed_name PARAMS ((bfd *, const char *));
554
555 /* SunOS shared library support routines for the linker. */
556
557 extern boolean bfd_sunos_record_link_assignment
558 PARAMS ((bfd *, struct bfd_link_info *, const char *));
559 extern boolean bfd_sunos_size_dynamic_sections
560 PARAMS ((bfd *, struct bfd_link_info *, struct sec **, struct sec **,
561 struct sec **));
562
563 /* Linux shared library support routines for the linker. */
564
565 extern boolean bfd_linux_size_dynamic_sections
566 PARAMS ((bfd *, struct bfd_link_info *));
567
568 /* And more from the source. */
569 void
570 bfd_init PARAMS ((void));
571
572 bfd *
573 bfd_openr PARAMS ((CONST char *filename, CONST char *target));
574
575 bfd *
576 bfd_fdopenr PARAMS ((CONST char *filename, CONST char *target, int fd));
577
578 bfd *
579 bfd_openw PARAMS ((CONST char *filename, CONST char *target));
580
581 boolean
582 bfd_close PARAMS ((bfd *abfd));
583
584 boolean
585 bfd_close_all_done PARAMS ((bfd *));
586
587 bfd_size_type
588 bfd_alloc_size PARAMS ((bfd *abfd));
589
590 bfd *
591 bfd_create PARAMS ((CONST char *filename, bfd *templ));
592
593
594 /* Byte swapping macros for user section data. */
595
596 #define bfd_put_8(abfd, val, ptr) \
597 (*((unsigned char *)(ptr)) = (unsigned char)(val))
598 #define bfd_put_signed_8 \
599 bfd_put_8
600 #define bfd_get_8(abfd, ptr) \
601 (*(unsigned char *)(ptr))
602 #define bfd_get_signed_8(abfd, ptr) \
603 ((*(unsigned char *)(ptr) ^ 0x80) - 0x80)
604
605 #define bfd_put_16(abfd, val, ptr) \
606 BFD_SEND(abfd, bfd_putx16, ((val),(ptr)))
607 #define bfd_put_signed_16 \
608 bfd_put_16
609 #define bfd_get_16(abfd, ptr) \
610 BFD_SEND(abfd, bfd_getx16, (ptr))
611 #define bfd_get_signed_16(abfd, ptr) \
612 BFD_SEND (abfd, bfd_getx_signed_16, (ptr))
613
614 #define bfd_put_32(abfd, val, ptr) \
615 BFD_SEND(abfd, bfd_putx32, ((val),(ptr)))
616 #define bfd_put_signed_32 \
617 bfd_put_32
618 #define bfd_get_32(abfd, ptr) \
619 BFD_SEND(abfd, bfd_getx32, (ptr))
620 #define bfd_get_signed_32(abfd, ptr) \
621 BFD_SEND(abfd, bfd_getx_signed_32, (ptr))
622
623 #define bfd_put_64(abfd, val, ptr) \
624 BFD_SEND(abfd, bfd_putx64, ((val), (ptr)))
625 #define bfd_put_signed_64 \
626 bfd_put_64
627 #define bfd_get_64(abfd, ptr) \
628 BFD_SEND(abfd, bfd_getx64, (ptr))
629 #define bfd_get_signed_64(abfd, ptr) \
630 BFD_SEND(abfd, bfd_getx_signed_64, (ptr))
631
632
633 /* Byte swapping macros for file header data. */
634
635 #define bfd_h_put_8(abfd, val, ptr) \
636 bfd_put_8 (abfd, val, ptr)
637 #define bfd_h_put_signed_8(abfd, val, ptr) \
638 bfd_put_8 (abfd, val, ptr)
639 #define bfd_h_get_8(abfd, ptr) \
640 bfd_get_8 (abfd, ptr)
641 #define bfd_h_get_signed_8(abfd, ptr) \
642 bfd_get_signed_8 (abfd, ptr)
643
644 #define bfd_h_put_16(abfd, val, ptr) \
645 BFD_SEND(abfd, bfd_h_putx16,(val,ptr))
646 #define bfd_h_put_signed_16 \
647 bfd_h_put_16
648 #define bfd_h_get_16(abfd, ptr) \
649 BFD_SEND(abfd, bfd_h_getx16,(ptr))
650 #define bfd_h_get_signed_16(abfd, ptr) \
651 BFD_SEND(abfd, bfd_h_getx_signed_16, (ptr))
652
653 #define bfd_h_put_32(abfd, val, ptr) \
654 BFD_SEND(abfd, bfd_h_putx32,(val,ptr))
655 #define bfd_h_put_signed_32 \
656 bfd_h_put_32
657 #define bfd_h_get_32(abfd, ptr) \
658 BFD_SEND(abfd, bfd_h_getx32,(ptr))
659 #define bfd_h_get_signed_32(abfd, ptr) \
660 BFD_SEND(abfd, bfd_h_getx_signed_32, (ptr))
661
662 #define bfd_h_put_64(abfd, val, ptr) \
663 BFD_SEND(abfd, bfd_h_putx64,(val, ptr))
664 #define bfd_h_put_signed_64 \
665 bfd_h_put_64
666 #define bfd_h_get_64(abfd, ptr) \
667 BFD_SEND(abfd, bfd_h_getx64,(ptr))
668 #define bfd_h_get_signed_64(abfd, ptr) \
669 BFD_SEND(abfd, bfd_h_getx_signed_64, (ptr))
670
671 typedef struct sec
672 {
673 /* The name of the section; the name isn't a copy, the pointer is
674 the same as that passed to bfd_make_section. */
675
676 CONST char *name;
677
678 /* Which section is it; 0..nth. */
679
680 int index;
681
682 /* The next section in the list belonging to the BFD, or NULL. */
683
684 struct sec *next;
685
686 /* The field flags contains attributes of the section. Some
687 flags are read in from the object file, and some are
688 synthesized from other information. */
689
690 flagword flags;
691
692 #define SEC_NO_FLAGS 0x000
693
694 /* Tells the OS to allocate space for this section when loading.
695 This is clear for a section containing debug information
696 only. */
697 #define SEC_ALLOC 0x001
698
699 /* Tells the OS to load the section from the file when loading.
700 This is clear for a .bss section. */
701 #define SEC_LOAD 0x002
702
703 /* The section contains data still to be relocated, so there is
704 some relocation information too. */
705 #define SEC_RELOC 0x004
706
707 #if 0 /* Obsolete ? */
708 #define SEC_BALIGN 0x008
709 #endif
710
711 /* A signal to the OS that the section contains read only
712 data. */
713 #define SEC_READONLY 0x010
714
715 /* The section contains code only. */
716 #define SEC_CODE 0x020
717
718 /* The section contains data only. */
719 #define SEC_DATA 0x040
720
721 /* The section will reside in ROM. */
722 #define SEC_ROM 0x080
723
724 /* The section contains constructor information. This section
725 type is used by the linker to create lists of constructors and
726 destructors used by <<g++>>. When a back end sees a symbol
727 which should be used in a constructor list, it creates a new
728 section for the type of name (e.g., <<__CTOR_LIST__>>), attaches
729 the symbol to it, and builds a relocation. To build the lists
730 of constructors, all the linker has to do is catenate all the
731 sections called <<__CTOR_LIST__>> and relocate the data
732 contained within - exactly the operations it would peform on
733 standard data. */
734 #define SEC_CONSTRUCTOR 0x100
735
736 /* The section is a constuctor, and should be placed at the
737 end of the text, data, or bss section(?). */
738 #define SEC_CONSTRUCTOR_TEXT 0x1100
739 #define SEC_CONSTRUCTOR_DATA 0x2100
740 #define SEC_CONSTRUCTOR_BSS 0x3100
741
742 /* The section has contents - a data section could be
743 <<SEC_ALLOC>> | <<SEC_HAS_CONTENTS>>; a debug section could be
744 <<SEC_HAS_CONTENTS>> */
745 #define SEC_HAS_CONTENTS 0x200
746
747 /* An instruction to the linker to not output the section
748 even if it has information which would normally be written. */
749 #define SEC_NEVER_LOAD 0x400
750
751 /* The section is a COFF shared library section. This flag is
752 only for the linker. If this type of section appears in
753 the input file, the linker must copy it to the output file
754 without changing the vma or size. FIXME: Although this
755 was originally intended to be general, it really is COFF
756 specific (and the flag was renamed to indicate this). It
757 might be cleaner to have some more general mechanism to
758 allow the back end to control what the linker does with
759 sections. */
760 #define SEC_COFF_SHARED_LIBRARY 0x800
761
762 /* The section is a common section (symbols may be defined
763 multiple times, the value of a symbol is the amount of
764 space it requires, and the largest symbol value is the one
765 used). Most targets have exactly one of these (which we
766 translate to bfd_com_section_ptr), but ECOFF has two. */
767 #define SEC_IS_COMMON 0x8000
768
769 /* The section contains only debugging information. For
770 example, this is set for ELF .debug and .stab sections.
771 strip tests this flag to see if a section can be
772 discarded. */
773 #define SEC_DEBUGGING 0x10000
774
775 /* The contents of this section are held in memory pointed to
776 by the contents field. This is checked by
777 bfd_get_section_contents, and the data is retrieved from
778 memory if appropriate. */
779 #define SEC_IN_MEMORY 0x20000
780
781 /* End of section flags. */
782
783 /* The virtual memory address of the section - where it will be
784 at run time. The symbols are relocated against this. The
785 user_set_vma flag is maintained by bfd; if it's not set, the
786 backend can assign addresses (for example, in <<a.out>>, where
787 the default address for <<.data>> is dependent on the specific
788 target and various flags). */
789
790 bfd_vma vma;
791 boolean user_set_vma;
792
793 /* The load address of the section - where it would be in a
794 rom image; really only used for writing section header
795 information. */
796
797 bfd_vma lma;
798
799 /* The size of the section in bytes, as it will be output.
800 contains a value even if the section has no contents (e.g., the
801 size of <<.bss>>). This will be filled in after relocation */
802
803 bfd_size_type _cooked_size;
804
805 /* The original size on disk of the section, in bytes. Normally this
806 value is the same as the size, but if some relaxing has
807 been done, then this value will be bigger. */
808
809 bfd_size_type _raw_size;
810
811 /* If this section is going to be output, then this value is the
812 offset into the output section of the first byte in the input
813 section. E.g., if this was going to start at the 100th byte in
814 the output section, this value would be 100. */
815
816 bfd_vma output_offset;
817
818 /* The output section through which to map on output. */
819
820 struct sec *output_section;
821
822 /* The alignment requirement of the section, as an exponent of 2 -
823 e.g., 3 aligns to 2^3 (or 8). */
824
825 unsigned int alignment_power;
826
827 /* If an input section, a pointer to a vector of relocation
828 records for the data in this section. */
829
830 struct reloc_cache_entry *relocation;
831
832 /* If an output section, a pointer to a vector of pointers to
833 relocation records for the data in this section. */
834
835 struct reloc_cache_entry **orelocation;
836
837 /* The number of relocation records in one of the above */
838
839 unsigned reloc_count;
840
841 /* Information below is back end specific - and not always used
842 or updated. */
843
844 /* File position of section data */
845
846 file_ptr filepos;
847
848 /* File position of relocation info */
849
850 file_ptr rel_filepos;
851
852 /* File position of line data */
853
854 file_ptr line_filepos;
855
856 /* Pointer to data for applications */
857
858 PTR userdata;
859
860 /* If the SEC_IN_MEMORY flag is set, this points to the actual
861 contents. */
862 unsigned char *contents;
863
864 /* Attached line number information */
865
866 alent *lineno;
867
868 /* Number of line number records */
869
870 unsigned int lineno_count;
871
872 /* When a section is being output, this value changes as more
873 linenumbers are written out */
874
875 file_ptr moving_line_filepos;
876
877 /* What the section number is in the target world */
878
879 int target_index;
880
881 PTR used_by_bfd;
882
883 /* If this is a constructor section then here is a list of the
884 relocations created to relocate items within it. */
885
886 struct relent_chain *constructor_chain;
887
888 /* The BFD which owns the section. */
889
890 bfd *owner;
891
892 boolean reloc_done;
893 /* A symbol which points at this section only */
894 struct symbol_cache_entry *symbol;
895 struct symbol_cache_entry **symbol_ptr_ptr;
896
897 struct bfd_link_order *link_order_head;
898 struct bfd_link_order *link_order_tail;
899 } asection ;
900
901 /* These sections are global, and are managed by BFD. The application
902 and target back end are not permitted to change the values in
903 these sections. New code should use the section_ptr macros rather
904 than referring directly to the const sections. The const sections
905 may eventually vanish. */
906 #define BFD_ABS_SECTION_NAME "*ABS*"
907 #define BFD_UND_SECTION_NAME "*UND*"
908 #define BFD_COM_SECTION_NAME "*COM*"
909 #define BFD_IND_SECTION_NAME "*IND*"
910
911 /* the absolute section */
912 extern const asection bfd_abs_section;
913 #define bfd_abs_section_ptr ((asection *) &bfd_abs_section)
914 #define bfd_is_abs_section(sec) ((sec) == bfd_abs_section_ptr)
915 /* Pointer to the undefined section */
916 extern const asection bfd_und_section;
917 #define bfd_und_section_ptr ((asection *) &bfd_und_section)
918 #define bfd_is_und_section(sec) ((sec) == bfd_und_section_ptr)
919 /* Pointer to the common section */
920 extern const asection bfd_com_section;
921 #define bfd_com_section_ptr ((asection *) &bfd_com_section)
922 /* Pointer to the indirect section */
923 extern const asection bfd_ind_section;
924 #define bfd_ind_section_ptr ((asection *) &bfd_ind_section)
925 #define bfd_is_ind_section(sec) ((sec) == bfd_ind_section_ptr)
926
927 extern const struct symbol_cache_entry * const bfd_abs_symbol;
928 extern const struct symbol_cache_entry * const bfd_com_symbol;
929 extern const struct symbol_cache_entry * const bfd_und_symbol;
930 extern const struct symbol_cache_entry * const bfd_ind_symbol;
931 #define bfd_get_section_size_before_reloc(section) \
932 (section->reloc_done ? (abort(),1): (section)->_raw_size)
933 #define bfd_get_section_size_after_reloc(section) \
934 ((section->reloc_done) ? (section)->_cooked_size: (abort(),1))
935 asection *
936 bfd_get_section_by_name PARAMS ((bfd *abfd, CONST char *name));
937
938 asection *
939 bfd_make_section_old_way PARAMS ((bfd *abfd, CONST char *name));
940
941 asection *
942 bfd_make_section_anyway PARAMS ((bfd *abfd, CONST char *name));
943
944 asection *
945 bfd_make_section PARAMS ((bfd *, CONST char *name));
946
947 boolean
948 bfd_set_section_flags PARAMS ((bfd *abfd, asection *sec, flagword flags));
949
950 void
951 bfd_map_over_sections PARAMS ((bfd *abfd,
952 void (*func)(bfd *abfd,
953 asection *sect,
954 PTR obj),
955 PTR obj));
956
957 boolean
958 bfd_set_section_size PARAMS ((bfd *abfd, asection *sec, bfd_size_type val));
959
960 boolean
961 bfd_set_section_contents
962 PARAMS ((bfd *abfd,
963 asection *section,
964 PTR data,
965 file_ptr offset,
966 bfd_size_type count));
967
968 boolean
969 bfd_get_section_contents
970 PARAMS ((bfd *abfd, asection *section, PTR location,
971 file_ptr offset, bfd_size_type count));
972
973 boolean
974 bfd_copy_private_section_data PARAMS ((bfd *ibfd, asection *isec, bfd *obfd, asection *osec));
975
976 #define bfd_copy_private_section_data(ibfd, isection, obfd, osection) \
977 BFD_SEND (ibfd, _bfd_copy_private_section_data, \
978 (ibfd, isection, obfd, osection))
979 enum bfd_architecture
980 {
981 bfd_arch_unknown, /* File arch not known */
982 bfd_arch_obscure, /* Arch known, not one of these */
983 bfd_arch_m68k, /* Motorola 68xxx */
984 bfd_arch_vax, /* DEC Vax */
985 bfd_arch_i960, /* Intel 960 */
986 /* The order of the following is important.
987 lower number indicates a machine type that
988 only accepts a subset of the instructions
989 available to machines with higher numbers.
990 The exception is the "ca", which is
991 incompatible with all other machines except
992 "core". */
993
994 #define bfd_mach_i960_core 1
995 #define bfd_mach_i960_ka_sa 2
996 #define bfd_mach_i960_kb_sb 3
997 #define bfd_mach_i960_mc 4
998 #define bfd_mach_i960_xa 5
999 #define bfd_mach_i960_ca 6
1000 /* start-sanitize-i960xl */
1001 #define bfd_mach_i960_xl 7
1002 /* end-sanitize-i960xl */
1003
1004 bfd_arch_a29k, /* AMD 29000 */
1005 bfd_arch_sparc, /* SPARC */
1006 bfd_arch_mips, /* MIPS Rxxxx */
1007 bfd_arch_i386, /* Intel 386 */
1008 bfd_arch_we32k, /* AT&T WE32xxx */
1009 bfd_arch_tahoe, /* CCI/Harris Tahoe */
1010 bfd_arch_i860, /* Intel 860 */
1011 bfd_arch_romp, /* IBM ROMP PC/RT */
1012 bfd_arch_alliant, /* Alliant */
1013 bfd_arch_convex, /* Convex */
1014 bfd_arch_m88k, /* Motorola 88xxx */
1015 bfd_arch_pyramid, /* Pyramid Technology */
1016 bfd_arch_h8300, /* Hitachi H8/300 */
1017 #define bfd_mach_h8300 1
1018 #define bfd_mach_h8300h 2
1019 bfd_arch_powerpc, /* PowerPC */
1020 bfd_arch_rs6000, /* IBM RS/6000 */
1021 bfd_arch_hppa, /* HP PA RISC */
1022 bfd_arch_z8k, /* Zilog Z8000 */
1023 #define bfd_mach_z8001 1
1024 #define bfd_mach_z8002 2
1025 bfd_arch_h8500, /* Hitachi H8/500 */
1026 bfd_arch_sh, /* Hitachi SH */
1027 bfd_arch_alpha, /* Dec Alpha */
1028 bfd_arch_arm, /* Advanced Risc Machines ARM */
1029 bfd_arch_ns32k, /* National Semiconductors ns32000 */
1030 bfd_arch_last
1031 };
1032
1033 typedef struct bfd_arch_info
1034 {
1035 int bits_per_word;
1036 int bits_per_address;
1037 int bits_per_byte;
1038 enum bfd_architecture arch;
1039 long mach;
1040 char *arch_name;
1041 CONST char *printable_name;
1042 unsigned int section_align_power;
1043 /* true if this is the default machine for the architecture */
1044 boolean the_default;
1045 CONST struct bfd_arch_info * (*compatible)
1046 PARAMS ((CONST struct bfd_arch_info *a,
1047 CONST struct bfd_arch_info *b));
1048
1049 boolean (*scan) PARAMS ((CONST struct bfd_arch_info *, CONST char *));
1050 /* How to disassemble an instruction, producing a printable
1051 representation on a specified stdio stream. This isn't
1052 defined for most processors at present, because of the size
1053 of the additional tables it would drag in, and because gdb
1054 wants to use a different interface. */
1055 unsigned int (*disassemble) PARAMS ((bfd_vma addr, CONST char *data,
1056 PTR stream));
1057
1058 struct bfd_arch_info *next;
1059 } bfd_arch_info_type;
1060 CONST char *
1061 bfd_printable_name PARAMS ((bfd *abfd));
1062
1063 bfd_arch_info_type *
1064 bfd_scan_arch PARAMS ((CONST char *string));
1065
1066 CONST bfd_arch_info_type *
1067 bfd_arch_get_compatible PARAMS ((
1068 CONST bfd *abfd,
1069 CONST bfd *bbfd));
1070
1071 void
1072 bfd_set_arch_info PARAMS ((bfd *abfd, bfd_arch_info_type *arg));
1073
1074 enum bfd_architecture
1075 bfd_get_arch PARAMS ((bfd *abfd));
1076
1077 unsigned long
1078 bfd_get_mach PARAMS ((bfd *abfd));
1079
1080 unsigned int
1081 bfd_arch_bits_per_byte PARAMS ((bfd *abfd));
1082
1083 unsigned int
1084 bfd_arch_bits_per_address PARAMS ((bfd *abfd));
1085
1086 bfd_arch_info_type *
1087 bfd_get_arch_info PARAMS ((bfd *abfd));
1088
1089 bfd_arch_info_type *
1090 bfd_lookup_arch
1091 PARAMS ((enum bfd_architecture
1092 arch,
1093 long machine));
1094
1095 CONST char *
1096 bfd_printable_arch_mach
1097 PARAMS ((enum bfd_architecture arch, unsigned long machine));
1098
1099 typedef enum bfd_reloc_status
1100 {
1101 /* No errors detected */
1102 bfd_reloc_ok,
1103
1104 /* The relocation was performed, but there was an overflow. */
1105 bfd_reloc_overflow,
1106
1107 /* The address to relocate was not within the section supplied. */
1108 bfd_reloc_outofrange,
1109
1110 /* Used by special functions */
1111 bfd_reloc_continue,
1112
1113 /* Unsupported relocation size requested. */
1114 bfd_reloc_notsupported,
1115
1116 /* Unused */
1117 bfd_reloc_other,
1118
1119 /* The symbol to relocate against was undefined. */
1120 bfd_reloc_undefined,
1121
1122 /* The relocation was performed, but may not be ok - presently
1123 generated only when linking i960 coff files with i960 b.out
1124 symbols. If this type is returned, the error_message argument
1125 to bfd_perform_relocation will be set. */
1126 bfd_reloc_dangerous
1127 }
1128 bfd_reloc_status_type;
1129
1130
1131 typedef struct reloc_cache_entry
1132 {
1133 /* A pointer into the canonical table of pointers */
1134 struct symbol_cache_entry **sym_ptr_ptr;
1135
1136 /* offset in section */
1137 bfd_size_type address;
1138
1139 /* addend for relocation value */
1140 bfd_vma addend;
1141
1142 /* Pointer to how to perform the required relocation */
1143 const struct reloc_howto_struct *howto;
1144
1145 } arelent;
1146 enum complain_overflow
1147 {
1148 /* Do not complain on overflow. */
1149 complain_overflow_dont,
1150
1151 /* Complain if the bitfield overflows, whether it is considered
1152 as signed or unsigned. */
1153 complain_overflow_bitfield,
1154
1155 /* Complain if the value overflows when considered as signed
1156 number. */
1157 complain_overflow_signed,
1158
1159 /* Complain if the value overflows when considered as an
1160 unsigned number. */
1161 complain_overflow_unsigned
1162 };
1163
1164 typedef unsigned char bfd_byte;
1165 typedef struct reloc_howto_struct reloc_howto_type;
1166
1167 struct reloc_howto_struct
1168 {
1169 /* The type field has mainly a documetary use - the back end can
1170 do what it wants with it, though normally the back end's
1171 external idea of what a reloc number is stored
1172 in this field. For example, a PC relative word relocation
1173 in a coff environment has the type 023 - because that's
1174 what the outside world calls a R_PCRWORD reloc. */
1175 unsigned int type;
1176
1177 /* The value the final relocation is shifted right by. This drops
1178 unwanted data from the relocation. */
1179 unsigned int rightshift;
1180
1181 /* The size of the item to be relocated. This is *not* a
1182 power-of-two measure. To get the number of bytes operated
1183 on by a type of relocation, use bfd_get_reloc_size. */
1184 int size;
1185
1186 /* The number of bits in the item to be relocated. This is used
1187 when doing overflow checking. */
1188 unsigned int bitsize;
1189
1190 /* Notes that the relocation is relative to the location in the
1191 data section of the addend. The relocation function will
1192 subtract from the relocation value the address of the location
1193 being relocated. */
1194 boolean pc_relative;
1195
1196 /* The bit position of the reloc value in the destination.
1197 The relocated value is left shifted by this amount. */
1198 unsigned int bitpos;
1199
1200 /* What type of overflow error should be checked for when
1201 relocating. */
1202 enum complain_overflow complain_on_overflow;
1203
1204 /* If this field is non null, then the supplied function is
1205 called rather than the normal function. This allows really
1206 strange relocation methods to be accomodated (e.g., i960 callj
1207 instructions). */
1208 bfd_reloc_status_type (*special_function)
1209 PARAMS ((bfd *abfd,
1210 arelent *reloc_entry,
1211 struct symbol_cache_entry *symbol,
1212 PTR data,
1213 asection *input_section,
1214 bfd *output_bfd,
1215 char **error_message));
1216
1217 /* The textual name of the relocation type. */
1218 char *name;
1219
1220 /* When performing a partial link, some formats must modify the
1221 relocations rather than the data - this flag signals this.*/
1222 boolean partial_inplace;
1223
1224 /* The src_mask selects which parts of the read in data
1225 are to be used in the relocation sum. E.g., if this was an 8 bit
1226 bit of data which we read and relocated, this would be
1227 0x000000ff. When we have relocs which have an addend, such as
1228 sun4 extended relocs, the value in the offset part of a
1229 relocating field is garbage so we never use it. In this case
1230 the mask would be 0x00000000. */
1231 bfd_vma src_mask;
1232
1233 /* The dst_mask selects which parts of the instruction are replaced
1234 into the instruction. In most cases src_mask == dst_mask,
1235 except in the above special case, where dst_mask would be
1236 0x000000ff, and src_mask would be 0x00000000. */
1237 bfd_vma dst_mask;
1238
1239 /* When some formats create PC relative instructions, they leave
1240 the value of the pc of the place being relocated in the offset
1241 slot of the instruction, so that a PC relative relocation can
1242 be made just by adding in an ordinary offset (e.g., sun3 a.out).
1243 Some formats leave the displacement part of an instruction
1244 empty (e.g., m88k bcs); this flag signals the fact.*/
1245 boolean pcrel_offset;
1246
1247 };
1248 #define HOWTO(C, R,S,B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
1249 {(unsigned)C,R,S,B, P, BI, O,SF,NAME,INPLACE,MASKSRC,MASKDST,PC}
1250 #define NEWHOWTO( FUNCTION, NAME,SIZE,REL,IN) HOWTO(0,0,SIZE,0,REL,0,complain_overflow_dont,FUNCTION, NAME,false,0,0,IN)
1251
1252 #define HOWTO_PREPARE(relocation, symbol) \
1253 { \
1254 if (symbol != (asymbol *)NULL) { \
1255 if (bfd_is_com_section (symbol->section)) { \
1256 relocation = 0; \
1257 } \
1258 else { \
1259 relocation = symbol->value; \
1260 } \
1261 } \
1262 }
1263 int
1264 bfd_get_reloc_size PARAMS ((const reloc_howto_type *));
1265
1266 typedef struct relent_chain {
1267 arelent relent;
1268 struct relent_chain *next;
1269 } arelent_chain;
1270 bfd_reloc_status_type
1271
1272 bfd_perform_relocation
1273 PARAMS ((bfd *abfd,
1274 arelent *reloc_entry,
1275 PTR data,
1276 asection *input_section,
1277 bfd *output_bfd,
1278 char **error_message));
1279
1280 bfd_reloc_status_type
1281
1282 bfd_install_relocation
1283 PARAMS ((bfd *abfd,
1284 arelent *reloc_entry,
1285 PTR data, bfd_vma data_start,
1286 asection *input_section,
1287 char **error_message));
1288
1289 enum bfd_reloc_code_real {
1290 _dummy_first_bfd_reloc_code_real,
1291
1292
1293 /* Basic absolute relocations of N bits. */
1294 BFD_RELOC_64,
1295 BFD_RELOC_32,
1296 BFD_RELOC_26,
1297 BFD_RELOC_16,
1298 BFD_RELOC_14,
1299 BFD_RELOC_8,
1300
1301 /* PC-relative relocations. Sometimes these are relative to the address
1302 of the relocation itself; sometimes they are relative to the start of
1303 the section containing the relocation. It depends on the specific target.
1304
1305 The 24-bit relocation is used in some Intel 960 configurations. */
1306 BFD_RELOC_64_PCREL,
1307 BFD_RELOC_32_PCREL,
1308 BFD_RELOC_24_PCREL,
1309 BFD_RELOC_16_PCREL,
1310 BFD_RELOC_12_PCREL,
1311 BFD_RELOC_8_PCREL,
1312
1313 /* Linkage-table relative. */
1314 BFD_RELOC_32_BASEREL,
1315 BFD_RELOC_16_BASEREL,
1316 BFD_RELOC_8_BASEREL,
1317
1318 /* Absolute 8-bit relocation, but used to form an address like 0xFFnn. */
1319 BFD_RELOC_8_FFnn,
1320
1321 /* These PC-relative relocations are stored as word displacements --
1322 i.e., byte displacements shifted right two bits. The 30-bit word
1323 displacement (<<32_PCREL_S2>> -- 32 bits, shifted 2) is used on the
1324 SPARC. (SPARC tools generally refer to this as <<WDISP30>>.) The
1325 signed 16-bit displacement is used on the MIPS, and the 23-bit
1326 displacement is used on the Alpha. */
1327 BFD_RELOC_32_PCREL_S2,
1328 BFD_RELOC_16_PCREL_S2,
1329 BFD_RELOC_23_PCREL_S2,
1330
1331 /* High 22 bits and low 10 bits of 32-bit value, placed into lower bits of
1332 the target word. These are used on the SPARC. */
1333 BFD_RELOC_HI22,
1334 BFD_RELOC_LO10,
1335
1336 /* For systems that allocate a Global Pointer register, these are
1337 displacements off that register. These relocation types are
1338 handled specially, because the value the register will have is
1339 decided relatively late. */
1340 BFD_RELOC_GPREL16,
1341 BFD_RELOC_GPREL32,
1342
1343 /* Reloc types used for i960/b.out. */
1344 BFD_RELOC_I960_CALLJ,
1345
1346 /* SPARC ELF relocations. There is probably some overlap with other
1347 relocation types already defined. */
1348 BFD_RELOC_NONE,
1349 BFD_RELOC_SPARC_WDISP22,
1350 BFD_RELOC_SPARC22,
1351 BFD_RELOC_SPARC13,
1352 BFD_RELOC_SPARC_GOT10,
1353 BFD_RELOC_SPARC_GOT13,
1354 BFD_RELOC_SPARC_GOT22,
1355 BFD_RELOC_SPARC_PC10,
1356 BFD_RELOC_SPARC_PC22,
1357 BFD_RELOC_SPARC_WPLT30,
1358 BFD_RELOC_SPARC_COPY,
1359 BFD_RELOC_SPARC_GLOB_DAT,
1360 BFD_RELOC_SPARC_JMP_SLOT,
1361 BFD_RELOC_SPARC_RELATIVE,
1362 BFD_RELOC_SPARC_UA32,
1363
1364 /* I think these are specific to SPARC a.out (e.g., Sun 4). */
1365 BFD_RELOC_SPARC_BASE13,
1366 BFD_RELOC_SPARC_BASE22,
1367
1368 /* Some relocations we're using for SPARC V9 -- subject to change. */
1369 #define BFD_RELOC_SPARC_64 BFD_RELOC_64
1370 BFD_RELOC_SPARC_10,
1371 BFD_RELOC_SPARC_11,
1372 BFD_RELOC_SPARC_OLO10,
1373 BFD_RELOC_SPARC_HH22,
1374 BFD_RELOC_SPARC_HM10,
1375 BFD_RELOC_SPARC_LM22,
1376 BFD_RELOC_SPARC_PC_HH22,
1377 BFD_RELOC_SPARC_PC_HM10,
1378 BFD_RELOC_SPARC_PC_LM22,
1379 BFD_RELOC_SPARC_WDISP16,
1380 BFD_RELOC_SPARC_WDISP19,
1381 BFD_RELOC_SPARC_GLOB_JMP,
1382 BFD_RELOC_SPARC_LO7,
1383
1384 /* Alpha ECOFF relocations. Some of these treat the symbol or "addend"
1385 in some special way.
1386 For GPDISP_HI16 ("gpdisp") relocations, the symbol is ignored when
1387 writing; when reading, it will be the absolute section symbol. The
1388 addend is the displacement in bytes of the "lda" instruction from
1389 the "ldah" instruction (which is at the address of this reloc). */
1390 BFD_RELOC_ALPHA_GPDISP_HI16,
1391
1392 /* For GPDISP_LO16 ("ignore") relocations, the symbol is handled as
1393 with GPDISP_HI16 relocs. The addend is ignored when writing the
1394 relocations out, and is filled in with the file's GP value on
1395 reading, for convenience. */
1396 BFD_RELOC_ALPHA_GPDISP_LO16,
1397
1398 /* The Alpha LITERAL/LITUSE relocs are produced by a symbol reference;
1399 the assembler turns it into a LDQ instruction to load the address of
1400 the symbol, and then fills in a register in the real instruction.
1401
1402 The LITERAL reloc, at the LDQ instruction, refers to the .lita
1403 section symbol. The addend is ignored when writing, but is filled
1404 in with the file's GP value on reading, for convenience, as with the
1405 GPDISP_LO16 reloc.
1406
1407 The LITUSE reloc, on the instruction using the loaded address, gives
1408 information to the linker that it might be able to use to optimize
1409 away some literal section references. The symbol is ignored (read
1410 as the absolute section symbol), and the "addend" indicates the type
1411 of instruction using the register:
1412 1 - "memory" fmt insn
1413 2 - byte-manipulation (byte offset reg)
1414 3 - jsr (target of branch)
1415
1416 The GNU linker currently doesn't do any of this optimizing. */
1417 BFD_RELOC_ALPHA_LITERAL,
1418 BFD_RELOC_ALPHA_LITUSE,
1419
1420 /* The HINT relocation indicates a value that should be filled into the
1421 "hint" field of a jmp/jsr/ret instruction, for possible branch-
1422 prediction logic which may be provided on some processors. */
1423 BFD_RELOC_ALPHA_HINT,
1424
1425 /* Bits 27..2 of the relocation address shifted right 2 bits;
1426 simple reloc otherwise. */
1427 BFD_RELOC_MIPS_JMP,
1428
1429 /* High 16 bits of 32-bit value; simple reloc. */
1430 BFD_RELOC_HI16,
1431
1432 /* High 16 bits of 32-bit value but the low 16 bits will be sign
1433 extended and added to form the final result. If the low 16
1434 bits form a negative number, we need to add one to the high value
1435 to compensate for the borrow when the low bits are added. */
1436 BFD_RELOC_HI16_S,
1437
1438 /* Low 16 bits. */
1439 BFD_RELOC_LO16,
1440
1441 /* Like BFD_RELOC_HI16_S, but PC relative. */
1442 BFD_RELOC_PCREL_HI16_S,
1443
1444 /* Like BFD_RELOC_LO16, but PC relative. */
1445 BFD_RELOC_PCREL_LO16,
1446
1447 /* Relocation relative to the global pointer. */
1448 #define BFD_RELOC_MIPS_GPREL BFD_RELOC_GPREL16
1449
1450 /* Relocation against a MIPS literal section. */
1451 BFD_RELOC_MIPS_LITERAL,
1452
1453 /* MIPS ELF relocations. */
1454 BFD_RELOC_MIPS_GOT16,
1455 BFD_RELOC_MIPS_CALL16,
1456 #define BFD_RELOC_MIPS_GPREL32 BFD_RELOC_GPREL32
1457
1458 /* i386/elf relocations */
1459 BFD_RELOC_386_GOT32,
1460 BFD_RELOC_386_PLT32,
1461 BFD_RELOC_386_COPY,
1462 BFD_RELOC_386_GLOB_DAT,
1463 BFD_RELOC_386_JUMP_SLOT,
1464 BFD_RELOC_386_RELATIVE,
1465 BFD_RELOC_386_GOTOFF,
1466 BFD_RELOC_386_GOTPC,
1467
1468 /* ns32k relocations */
1469 BFD_RELOC_NS32K_IMM_8,
1470 BFD_RELOC_NS32K_IMM_16,
1471 BFD_RELOC_NS32K_IMM_32,
1472 BFD_RELOC_NS32K_IMM_8_PCREL,
1473 BFD_RELOC_NS32K_IMM_16_PCREL,
1474 BFD_RELOC_NS32K_IMM_32_PCREL,
1475 BFD_RELOC_NS32K_DISP_8,
1476 BFD_RELOC_NS32K_DISP_16,
1477 BFD_RELOC_NS32K_DISP_32,
1478 BFD_RELOC_NS32K_DISP_8_PCREL,
1479 BFD_RELOC_NS32K_DISP_16_PCREL,
1480 BFD_RELOC_NS32K_DISP_32_PCREL,
1481
1482 /* PowerPC/POWER (RS/6000) relocs.
1483 26 bit relative branch. Low two bits must be zero. High 24
1484 bits installed in bits 6 through 29 of instruction. */
1485 BFD_RELOC_PPC_B26,
1486
1487 /* 26 bit absolute branch, like BFD_RELOC_PPC_B26 but absolute. */
1488 BFD_RELOC_PPC_BA26,
1489
1490 /* 16 bit TOC relative reference. */
1491 BFD_RELOC_PPC_TOC16,
1492
1493 /* The type of reloc used to build a contructor table - at the moment
1494 probably a 32 bit wide absolute relocation, but the target can choose.
1495 It generally does map to one of the other relocation types. */
1496 BFD_RELOC_CTOR,
1497
1498 /* ARM 26 bit pc-relative branch. The lowest two bits must be zero and are
1499 not stored in the instruction. */
1500 BFD_RELOC_ARM_PCREL_BRANCH,
1501
1502 /* These relocs are only used within the ARM assembler. They are not
1503 (at present) written to any object files. */
1504 BFD_RELOC_ARM_IMMEDIATE,
1505 BFD_RELOC_ARM_OFFSET_IMM,
1506 BFD_RELOC_ARM_SHIFT_IMM,
1507 BFD_RELOC_ARM_SWI,
1508 BFD_RELOC_ARM_MULTI,
1509 BFD_RELOC_ARM_CP_OFF_IMM,
1510 BFD_RELOC_UNUSED };
1511 typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
1512 const struct reloc_howto_struct *
1513
1514 bfd_reloc_type_lookup PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
1515
1516 const char *
1517 bfd_get_reloc_code_name PARAMS ((bfd_reloc_code_real_type code));
1518
1519
1520 typedef struct symbol_cache_entry
1521 {
1522 /* A pointer to the BFD which owns the symbol. This information
1523 is necessary so that a back end can work out what additional
1524 information (invisible to the application writer) is carried
1525 with the symbol.
1526
1527 This field is *almost* redundant, since you can use section->owner
1528 instead, except that some symbols point to the global sections
1529 bfd_{abs,com,und}_section. This could be fixed by making
1530 these globals be per-bfd (or per-target-flavor). FIXME. */
1531
1532 struct _bfd *the_bfd; /* Use bfd_asymbol_bfd(sym) to access this field. */
1533
1534 /* The text of the symbol. The name is left alone, and not copied; the
1535 application may not alter it. */
1536 CONST char *name;
1537
1538 /* The value of the symbol. This really should be a union of a
1539 numeric value with a pointer, since some flags indicate that
1540 a pointer to another symbol is stored here. */
1541 symvalue value;
1542
1543 /* Attributes of a symbol: */
1544
1545 #define BSF_NO_FLAGS 0x00
1546
1547 /* The symbol has local scope; <<static>> in <<C>>. The value
1548 is the offset into the section of the data. */
1549 #define BSF_LOCAL 0x01
1550
1551 /* The symbol has global scope; initialized data in <<C>>. The
1552 value is the offset into the section of the data. */
1553 #define BSF_GLOBAL 0x02
1554
1555 /* The symbol has global scope and is exported. The value is
1556 the offset into the section of the data. */
1557 #define BSF_EXPORT BSF_GLOBAL /* no real difference */
1558
1559 /* A normal C symbol would be one of:
1560 <<BSF_LOCAL>>, <<BSF_FORT_COMM>>, <<BSF_UNDEFINED>> or
1561 <<BSF_GLOBAL>> */
1562
1563 /* The symbol is a debugging record. The value has an arbitary
1564 meaning. */
1565 #define BSF_DEBUGGING 0x08
1566
1567 /* The symbol denotes a function entry point. Used in ELF,
1568 perhaps others someday. */
1569 #define BSF_FUNCTION 0x10
1570
1571 /* Used by the linker. */
1572 #define BSF_KEEP 0x20
1573 #define BSF_KEEP_G 0x40
1574
1575 /* A weak global symbol, overridable without warnings by
1576 a regular global symbol of the same name. */
1577 #define BSF_WEAK 0x80
1578
1579 /* This symbol was created to point to a section, e.g. ELF's
1580 STT_SECTION symbols. */
1581 #define BSF_SECTION_SYM 0x100
1582
1583 /* The symbol used to be a common symbol, but now it is
1584 allocated. */
1585 #define BSF_OLD_COMMON 0x200
1586
1587 /* The default value for common data. */
1588 #define BFD_FORT_COMM_DEFAULT_VALUE 0
1589
1590 /* In some files the type of a symbol sometimes alters its
1591 location in an output file - ie in coff a <<ISFCN>> symbol
1592 which is also <<C_EXT>> symbol appears where it was
1593 declared and not at the end of a section. This bit is set
1594 by the target BFD part to convey this information. */
1595
1596 #define BSF_NOT_AT_END 0x400
1597
1598 /* Signal that the symbol is the label of constructor section. */
1599 #define BSF_CONSTRUCTOR 0x800
1600
1601 /* Signal that the symbol is a warning symbol. If the symbol
1602 is a warning symbol, then the value field (I know this is
1603 tacky) will point to the asymbol which when referenced will
1604 cause the warning. */
1605 #define BSF_WARNING 0x1000
1606
1607 /* Signal that the symbol is indirect. The value of the symbol
1608 is a pointer to an undefined asymbol which contains the
1609 name to use instead. */
1610 #define BSF_INDIRECT 0x2000
1611
1612 /* BSF_FILE marks symbols that contain a file name. This is used
1613 for ELF STT_FILE symbols. */
1614 #define BSF_FILE 0x4000
1615
1616 /* Symbol is from dynamic linking information. */
1617 #define BSF_DYNAMIC 0x8000
1618
1619 flagword flags;
1620
1621 /* A pointer to the section to which this symbol is
1622 relative. This will always be non NULL, there are special
1623 sections for undefined and absolute symbols. */
1624 struct sec *section;
1625
1626 /* Back end special data. */
1627 union
1628 {
1629 PTR p;
1630 bfd_vma i;
1631 } udata;
1632
1633 } asymbol;
1634 #define bfd_get_symtab_upper_bound(abfd) \
1635 BFD_SEND (abfd, _bfd_get_symtab_upper_bound, (abfd))
1636 boolean
1637 bfd_is_local_label PARAMS ((bfd *abfd, asymbol *sym));
1638
1639 #define bfd_is_local_label(abfd, sym) \
1640 BFD_SEND (abfd, _bfd_is_local_label,(abfd, sym))
1641 #define bfd_canonicalize_symtab(abfd, location) \
1642 BFD_SEND (abfd, _bfd_canonicalize_symtab,\
1643 (abfd, location))
1644 boolean
1645 bfd_set_symtab PARAMS ((bfd *abfd, asymbol **location, unsigned int count));
1646
1647 void
1648 bfd_print_symbol_vandf PARAMS ((PTR file, asymbol *symbol));
1649
1650 #define bfd_make_empty_symbol(abfd) \
1651 BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd))
1652 #define bfd_make_debug_symbol(abfd,ptr,size) \
1653 BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size))
1654 int
1655 bfd_decode_symclass PARAMS ((asymbol *symbol));
1656
1657 void
1658 bfd_symbol_info PARAMS ((asymbol *symbol, symbol_info *ret));
1659
1660 struct _bfd
1661 {
1662 /* The filename the application opened the BFD with. */
1663 CONST char *filename;
1664
1665 /* A pointer to the target jump table. */
1666 const struct bfd_target *xvec;
1667
1668 /* To avoid dragging too many header files into every file that
1669 includes `<<bfd.h>>', IOSTREAM has been declared as a "char
1670 *", and MTIME as a "long". Their correct types, to which they
1671 are cast when used, are "FILE *" and "time_t". The iostream
1672 is the result of an fopen on the filename. */
1673 char *iostream;
1674
1675 /* Is the file descriptor being cached? That is, can it be closed as
1676 needed, and re-opened when accessed later? */
1677
1678 boolean cacheable;
1679
1680 /* Marks whether there was a default target specified when the
1681 BFD was opened. This is used to select which matching algorithm
1682 to use to choose the back end. */
1683
1684 boolean target_defaulted;
1685
1686 /* The caching routines use these to maintain a
1687 least-recently-used list of BFDs */
1688
1689 struct _bfd *lru_prev, *lru_next;
1690
1691 /* When a file is closed by the caching routines, BFD retains
1692 state information on the file here: */
1693
1694 file_ptr where;
1695
1696 /* and here: (``once'' means at least once) */
1697
1698 boolean opened_once;
1699
1700 /* Set if we have a locally maintained mtime value, rather than
1701 getting it from the file each time: */
1702
1703 boolean mtime_set;
1704
1705 /* File modified time, if mtime_set is true: */
1706
1707 long mtime;
1708
1709 /* Reserved for an unimplemented file locking extension.*/
1710
1711 int ifd;
1712
1713 /* The format which belongs to the BFD. (object, core, etc.) */
1714
1715 bfd_format format;
1716
1717 /* The direction the BFD was opened with*/
1718
1719 enum bfd_direction {no_direction = 0,
1720 read_direction = 1,
1721 write_direction = 2,
1722 both_direction = 3} direction;
1723
1724 /* Format_specific flags*/
1725
1726 flagword flags;
1727
1728 /* Currently my_archive is tested before adding origin to
1729 anything. I believe that this can become always an add of
1730 origin, with origin set to 0 for non archive files. */
1731
1732 file_ptr origin;
1733
1734 /* Remember when output has begun, to stop strange things
1735 from happening. */
1736 boolean output_has_begun;
1737
1738 /* Pointer to linked list of sections*/
1739 struct sec *sections;
1740
1741 /* The number of sections */
1742 unsigned int section_count;
1743
1744 /* Stuff only useful for object files:
1745 The start address. */
1746 bfd_vma start_address;
1747
1748 /* Used for input and output*/
1749 unsigned int symcount;
1750
1751 /* Symbol table for output BFD (with symcount entries) */
1752 struct symbol_cache_entry **outsymbols;
1753
1754 /* Pointer to structure which contains architecture information*/
1755 struct bfd_arch_info *arch_info;
1756
1757 /* Stuff only useful for archives:*/
1758 PTR arelt_data;
1759 struct _bfd *my_archive; /* The containing archive BFD. */
1760 struct _bfd *next; /* The next BFD in the archive. */
1761 struct _bfd *archive_head; /* The first BFD in the archive. */
1762 boolean has_armap;
1763
1764 /* A chain of BFD structures involved in a link. */
1765 struct _bfd *link_next;
1766
1767 /* A field used by _bfd_generic_link_add_archive_symbols. This will
1768 be used only for archive elements. */
1769 int archive_pass;
1770
1771 /* Used by the back end to hold private data. */
1772
1773 union
1774 {
1775 struct aout_data_struct *aout_data;
1776 struct artdata *aout_ar_data;
1777 struct _oasys_data *oasys_obj_data;
1778 struct _oasys_ar_data *oasys_ar_data;
1779 struct coff_tdata *coff_obj_data;
1780 struct ecoff_tdata *ecoff_obj_data;
1781 struct ieee_data_struct *ieee_data;
1782 struct ieee_ar_data_struct *ieee_ar_data;
1783 struct srec_data_struct *srec_data;
1784 struct tekhex_data_struct *tekhex_data;
1785 struct elf_obj_tdata *elf_obj_data;
1786 struct nlm_obj_tdata *nlm_obj_data;
1787 struct bout_data_struct *bout_data;
1788 struct sun_core_struct *sun_core_data;
1789 struct trad_core_struct *trad_core_data;
1790 struct som_data_struct *som_data;
1791 struct hpux_core_struct *hpux_core_data;
1792 struct hppabsd_core_struct *hppabsd_core_data;
1793 struct sgi_core_struct *sgi_core_data;
1794 struct lynx_core_struct *lynx_core_data;
1795 struct osf_core_struct *osf_core_data;
1796 struct cisco_core_struct *cisco_core_data;
1797 PTR any;
1798 } tdata;
1799
1800 /* Used by the application to hold private data*/
1801 PTR usrdata;
1802
1803 /* Where all the allocated stuff under this BFD goes */
1804 struct obstack memory;
1805 };
1806
1807 typedef enum bfd_error
1808 {
1809 bfd_error_no_error = 0,
1810 bfd_error_system_call,
1811 bfd_error_invalid_target,
1812 bfd_error_wrong_format,
1813 bfd_error_invalid_operation,
1814 bfd_error_no_memory,
1815 bfd_error_no_symbols,
1816 bfd_error_no_more_archived_files,
1817 bfd_error_malformed_archive,
1818 bfd_error_file_not_recognized,
1819 bfd_error_file_ambiguously_recognized,
1820 bfd_error_no_contents,
1821 bfd_error_nonrepresentable_section,
1822 bfd_error_no_debug_section,
1823 bfd_error_bad_value,
1824 bfd_error_file_truncated,
1825 bfd_error_invalid_error_code
1826 } bfd_error_type;
1827
1828 bfd_error_type
1829 bfd_get_error PARAMS ((void));
1830
1831 void
1832 bfd_set_error PARAMS ((bfd_error_type error_tag));
1833
1834 CONST char *
1835 bfd_errmsg PARAMS ((bfd_error_type error_tag));
1836
1837 void
1838 bfd_perror PARAMS ((CONST char *message));
1839
1840 long
1841 bfd_get_reloc_upper_bound PARAMS ((bfd *abfd, asection *sect));
1842
1843 long
1844 bfd_canonicalize_reloc
1845 PARAMS ((bfd *abfd,
1846 asection *sec,
1847 arelent **loc,
1848 asymbol **syms));
1849
1850 void
1851 bfd_set_reloc
1852 PARAMS ((bfd *abfd, asection *sec, arelent **rel, unsigned int count)
1853
1854 );
1855
1856 boolean
1857 bfd_set_file_flags PARAMS ((bfd *abfd, flagword flags));
1858
1859 boolean
1860 bfd_set_start_address PARAMS ((bfd *abfd, bfd_vma vma));
1861
1862 long
1863 bfd_get_mtime PARAMS ((bfd *abfd));
1864
1865 long
1866 bfd_get_size PARAMS ((bfd *abfd));
1867
1868 int
1869 bfd_get_gp_size PARAMS ((bfd *abfd));
1870
1871 void
1872 bfd_set_gp_size PARAMS ((bfd *abfd, int i));
1873
1874 bfd_vma
1875 bfd_scan_vma PARAMS ((CONST char *string, CONST char **end, int base));
1876
1877 boolean
1878 bfd_copy_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd));
1879
1880 #define bfd_copy_private_bfd_data(ibfd, obfd) \
1881 BFD_SEND (ibfd, _bfd_copy_private_bfd_data, \
1882 (ibfd, obfd))
1883 #define bfd_sizeof_headers(abfd, reloc) \
1884 BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc))
1885
1886 #define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
1887 BFD_SEND (abfd, _bfd_find_nearest_line, (abfd, sec, syms, off, file, func, line))
1888
1889 /* Do these three do anything useful at all, for any back end? */
1890 #define bfd_debug_info_start(abfd) \
1891 BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
1892
1893 #define bfd_debug_info_end(abfd) \
1894 BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
1895
1896 #define bfd_debug_info_accumulate(abfd, section) \
1897 BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
1898
1899
1900 #define bfd_stat_arch_elt(abfd, stat) \
1901 BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
1902
1903 #define bfd_update_armap_timestamp(abfd) \
1904 BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))
1905
1906 #define bfd_set_arch_mach(abfd, arch, mach)\
1907 BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
1908
1909 #define bfd_get_relocated_section_contents(abfd, link_info, link_order, data, relocateable, symbols) \
1910 BFD_SEND (abfd, _bfd_get_relocated_section_contents, \
1911 (abfd, link_info, link_order, data, relocateable, symbols))
1912
1913 #define bfd_relax_section(abfd, section, link_info, again) \
1914 BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
1915
1916 #define bfd_link_hash_table_create(abfd) \
1917 BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
1918
1919 #define bfd_link_add_symbols(abfd, info) \
1920 BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
1921
1922 #define bfd_final_link(abfd, info) \
1923 BFD_SEND (abfd, _bfd_final_link, (abfd, info))
1924
1925 #define bfd_free_cached_info(abfd) \
1926 BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
1927
1928 #define bfd_get_dynamic_symtab_upper_bound(abfd) \
1929 BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
1930
1931 #define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
1932 BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
1933
1934 #define bfd_get_dynamic_reloc_upper_bound(abfd) \
1935 BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
1936
1937 #define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
1938 BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
1939
1940 symindex
1941 bfd_get_next_mapent PARAMS ((bfd *abfd, symindex previous, carsym **sym));
1942
1943 boolean
1944 bfd_set_archive_head PARAMS ((bfd *output, bfd *new_head));
1945
1946 bfd *
1947 bfd_get_elt_at_index PARAMS ((bfd *archive, int index));
1948
1949 bfd *
1950 bfd_openr_next_archived_file PARAMS ((bfd *archive, bfd *previous));
1951
1952 CONST char *
1953 bfd_core_file_failing_command PARAMS ((bfd *abfd));
1954
1955 int
1956 bfd_core_file_failing_signal PARAMS ((bfd *abfd));
1957
1958 boolean
1959 core_file_matches_executable_p
1960 PARAMS ((bfd *core_bfd, bfd *exec_bfd));
1961
1962 #define BFD_SEND(bfd, message, arglist) \
1963 ((*((bfd)->xvec->message)) arglist)
1964
1965 #ifdef DEBUG_BFD_SEND
1966 #undef BFD_SEND
1967 #define BFD_SEND(bfd, message, arglist) \
1968 (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
1969 ((*((bfd)->xvec->message)) arglist) : \
1970 (bfd_assert (__FILE__,__LINE__), NULL))
1971 #endif
1972 #define BFD_SEND_FMT(bfd, message, arglist) \
1973 (((bfd)->xvec->message[(int)((bfd)->format)]) arglist)
1974
1975 #ifdef DEBUG_BFD_SEND
1976 #undef BFD_SEND_FMT
1977 #define BFD_SEND_FMT(bfd, message, arglist) \
1978 (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
1979 (((bfd)->xvec->message[(int)((bfd)->format)]) arglist) : \
1980 (bfd_assert (__FILE__,__LINE__), NULL))
1981 #endif
1982 enum bfd_flavour {
1983 bfd_target_unknown_flavour,
1984 bfd_target_aout_flavour,
1985 bfd_target_coff_flavour,
1986 bfd_target_ecoff_flavour,
1987 bfd_target_elf_flavour,
1988 bfd_target_ieee_flavour,
1989 bfd_target_nlm_flavour,
1990 bfd_target_oasys_flavour,
1991 bfd_target_tekhex_flavour,
1992 bfd_target_srec_flavour,
1993 bfd_target_som_flavour,
1994 bfd_target_os9k_flavour};
1995
1996 /* Forward declaration. */
1997 typedef struct bfd_link_info _bfd_link_info;
1998
1999 typedef struct bfd_target
2000 {
2001 char *name;
2002 enum bfd_flavour flavour;
2003 boolean byteorder_big_p;
2004 boolean header_byteorder_big_p;
2005 flagword object_flags;
2006 flagword section_flags;
2007 char symbol_leading_char;
2008 char ar_pad_char;
2009 unsigned short ar_max_namelen;
2010 unsigned int align_power_min;
2011 bfd_vma (*bfd_getx64) PARAMS ((const bfd_byte *));
2012 bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((const bfd_byte *));
2013 void (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *));
2014 bfd_vma (*bfd_getx32) PARAMS ((const bfd_byte *));
2015 bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((const bfd_byte *));
2016 void (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *));
2017 bfd_vma (*bfd_getx16) PARAMS ((const bfd_byte *));
2018 bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((const bfd_byte *));
2019 void (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *));
2020 bfd_vma (*bfd_h_getx64) PARAMS ((const bfd_byte *));
2021 bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((const bfd_byte *));
2022 void (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *));
2023 bfd_vma (*bfd_h_getx32) PARAMS ((const bfd_byte *));
2024 bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((const bfd_byte *));
2025 void (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *));
2026 bfd_vma (*bfd_h_getx16) PARAMS ((const bfd_byte *));
2027 bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((const bfd_byte *));
2028 void (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *));
2029 const struct bfd_target *(*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *));
2030 boolean (*_bfd_set_format[bfd_type_end]) PARAMS ((bfd *));
2031 boolean (*_bfd_write_contents[bfd_type_end]) PARAMS ((bfd *));
2032
2033 /* Generic entry points. */
2034 #define BFD_JUMP_TABLE_GENERIC(NAME)\
2035 CAT(NAME,_close_and_cleanup),\
2036 CAT(NAME,_bfd_free_cached_info),\
2037 CAT(NAME,_new_section_hook),\
2038 CAT(NAME,_get_section_contents)
2039 /* Called when the BFD is being closed to do any necessary cleanup. */
2040 boolean (*_close_and_cleanup) PARAMS ((bfd *));
2041 /* Ask the BFD to free all cached information. */
2042 boolean (*_bfd_free_cached_info) PARAMS ((bfd *));
2043 /* Called when a new section is created. */
2044 boolean (*_new_section_hook) PARAMS ((bfd *, sec_ptr));
2045 /* Read the contents of a section. */
2046 boolean (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
2047 file_ptr, bfd_size_type));
2048
2049 /* Entry points to copy private data. */
2050 #define BFD_JUMP_TABLE_COPY(NAME)\
2051 CAT(NAME,_bfd_copy_private_bfd_data),\
2052 CAT(NAME,_bfd_copy_private_section_data)
2053 /* Called to copy BFD general private data from one object file
2054 to another. */
2055 boolean (*_bfd_copy_private_bfd_data) PARAMS ((bfd *, bfd *));
2056 /* Called to copy BFD private section data from one object file
2057 to another. */
2058 boolean (*_bfd_copy_private_section_data) PARAMS ((bfd *, sec_ptr,
2059 bfd *, sec_ptr));
2060
2061 /* Core file entry points. */
2062 #define BFD_JUMP_TABLE_CORE(NAME)\
2063 CAT(NAME,_core_file_failing_command),\
2064 CAT(NAME,_core_file_failing_signal),\
2065 CAT(NAME,_core_file_matches_executable_p)
2066 char * (*_core_file_failing_command) PARAMS ((bfd *));
2067 int (*_core_file_failing_signal) PARAMS ((bfd *));
2068 boolean (*_core_file_matches_executable_p) PARAMS ((bfd *, bfd *));
2069
2070 /* Archive entry points. */
2071 #define BFD_JUMP_TABLE_ARCHIVE(NAME)\
2072 CAT(NAME,_slurp_armap),\
2073 CAT(NAME,_slurp_extended_name_table),\
2074 CAT(NAME,_construct_extended_name_table),\
2075 CAT(NAME,_truncate_arname),\
2076 CAT(NAME,_write_armap),\
2077 CAT(NAME,_openr_next_archived_file),\
2078 CAT(NAME,_generic_stat_arch_elt),\
2079 CAT(NAME,_update_armap_timestamp)
2080 boolean (*_bfd_slurp_armap) PARAMS ((bfd *));
2081 boolean (*_bfd_slurp_extended_name_table) PARAMS ((bfd *));
2082 boolean (*_bfd_construct_extended_name_table)
2083 PARAMS ((bfd *, char **, bfd_size_type *, const char **));
2084 void (*_bfd_truncate_arname) PARAMS ((bfd *, CONST char *, char *));
2085 boolean (*write_armap) PARAMS ((bfd *arch,
2086 unsigned int elength,
2087 struct orl *map,
2088 unsigned int orl_count,
2089 int stridx));
2090 bfd * (*openr_next_archived_file) PARAMS ((bfd *arch, bfd *prev));
2091 int (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *));
2092 boolean (*_bfd_update_armap_timestamp) PARAMS ((bfd *));
2093
2094 /* Entry points used for symbols. */
2095 #define BFD_JUMP_TABLE_SYMBOLS(NAME)\
2096 CAT(NAME,_get_symtab_upper_bound),\
2097 CAT(NAME,_get_symtab),\
2098 CAT(NAME,_make_empty_symbol),\
2099 CAT(NAME,_print_symbol),\
2100 CAT(NAME,_get_symbol_info),\
2101 CAT(NAME,_bfd_is_local_label),\
2102 CAT(NAME,_get_lineno),\
2103 CAT(NAME,_find_nearest_line),\
2104 CAT(NAME,_bfd_make_debug_symbol)
2105 long (*_bfd_get_symtab_upper_bound) PARAMS ((bfd *));
2106 long (*_bfd_canonicalize_symtab) PARAMS ((bfd *,
2107 struct symbol_cache_entry **));
2108 struct symbol_cache_entry *
2109 (*_bfd_make_empty_symbol) PARAMS ((bfd *));
2110 void (*_bfd_print_symbol) PARAMS ((bfd *, PTR,
2111 struct symbol_cache_entry *,
2112 bfd_print_symbol_type));
2113 #define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e))
2114 void (*_bfd_get_symbol_info) PARAMS ((bfd *,
2115 struct symbol_cache_entry *,
2116 symbol_info *));
2117 #define bfd_get_symbol_info(b,p,e) BFD_SEND(b, _bfd_get_symbol_info, (b,p,e))
2118 boolean (*_bfd_is_local_label) PARAMS ((bfd *, asymbol *));
2119
2120 alent * (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *));
2121 boolean (*_bfd_find_nearest_line) PARAMS ((bfd *abfd,
2122 struct sec *section, struct symbol_cache_entry **symbols,
2123 bfd_vma offset, CONST char **file, CONST char **func,
2124 unsigned int *line));
2125 /* Back-door to allow format-aware applications to create debug symbols
2126 while using BFD for everything else. Currently used by the assembler
2127 when creating COFF files. */
2128 asymbol * (*_bfd_make_debug_symbol) PARAMS ((
2129 bfd *abfd,
2130 void *ptr,
2131 unsigned long size));
2132
2133 /* Routines for relocs. */
2134 #define BFD_JUMP_TABLE_RELOCS(NAME)\
2135 CAT(NAME,_get_reloc_upper_bound),\
2136 CAT(NAME,_canonicalize_reloc),\
2137 CAT(NAME,_bfd_reloc_type_lookup)
2138 long (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr));
2139 long (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **,
2140 struct symbol_cache_entry **));
2141 /* See documentation on reloc types. */
2142 CONST struct reloc_howto_struct *
2143 (*reloc_type_lookup) PARAMS ((bfd *abfd,
2144 bfd_reloc_code_real_type code));
2145
2146 /* Routines used when writing an object file. */
2147 #define BFD_JUMP_TABLE_WRITE(NAME)\
2148 CAT(NAME,_set_arch_mach),\
2149 CAT(NAME,_set_section_contents)
2150 boolean (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture,
2151 unsigned long));
2152 boolean (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
2153 file_ptr, bfd_size_type));
2154
2155 /* Routines used by the linker. */
2156 #define BFD_JUMP_TABLE_LINK(NAME)\
2157 CAT(NAME,_sizeof_headers),\
2158 CAT(NAME,_bfd_get_relocated_section_contents),\
2159 CAT(NAME,_bfd_relax_section),\
2160 CAT(NAME,_bfd_link_hash_table_create),\
2161 CAT(NAME,_bfd_link_add_symbols),\
2162 CAT(NAME,_bfd_final_link)
2163 int (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean));
2164 bfd_byte * (*_bfd_get_relocated_section_contents) PARAMS ((bfd *,
2165 struct bfd_link_info *, struct bfd_link_order *,
2166 bfd_byte *data, boolean relocateable,
2167 struct symbol_cache_entry **));
2168
2169 boolean (*_bfd_relax_section) PARAMS ((bfd *, struct sec *,
2170 struct bfd_link_info *, boolean *again));
2171
2172 /* Create a hash table for the linker. Different backends store
2173 different information in this table. */
2174 struct bfd_link_hash_table *(*_bfd_link_hash_table_create) PARAMS ((bfd *));
2175
2176 /* Add symbols from this object file into the hash table. */
2177 boolean (*_bfd_link_add_symbols) PARAMS ((bfd *, struct bfd_link_info *));
2178
2179 /* Do a link based on the link_order structures attached to each
2180 section of the BFD. */
2181 boolean (*_bfd_final_link) PARAMS ((bfd *, struct bfd_link_info *));
2182
2183 /* Routines to handle dynamic symbols and relocs. */
2184 #define BFD_JUMP_TABLE_DYNAMIC(NAME)\
2185 CAT(NAME,_get_dynamic_symtab_upper_bound),\
2186 CAT(NAME,_canonicalize_dynamic_symtab),\
2187 CAT(NAME,_get_dynamic_reloc_upper_bound),\
2188 CAT(NAME,_canonicalize_dynamic_reloc)
2189 /* Get the amount of memory required to hold the dynamic symbols. */
2190 long (*_bfd_get_dynamic_symtab_upper_bound) PARAMS ((bfd *));
2191 /* Read in the dynamic symbols. */
2192 long (*_bfd_canonicalize_dynamic_symtab)
2193 PARAMS ((bfd *, struct symbol_cache_entry **));
2194 /* Get the amount of memory required to hold the dynamic relocs. */
2195 long (*_bfd_get_dynamic_reloc_upper_bound) PARAMS ((bfd *));
2196 /* Read in the dynamic relocs. */
2197 long (*_bfd_canonicalize_dynamic_reloc)
2198 PARAMS ((bfd *, arelent **, struct symbol_cache_entry **));
2199
2200 PTR backend_data;
2201 } bfd_target;
2202 const bfd_target *
2203 bfd_find_target PARAMS ((CONST char *target_name, bfd *abfd));
2204
2205 const char **
2206 bfd_target_list PARAMS ((void));
2207
2208 boolean
2209 bfd_check_format PARAMS ((bfd *abfd, bfd_format format));
2210
2211 boolean
2212 bfd_check_format_matches PARAMS ((bfd *abfd, bfd_format format, char ***matching));
2213
2214 boolean
2215 bfd_set_format PARAMS ((bfd *abfd, bfd_format format));
2216
2217 CONST char *
2218 bfd_format_string PARAMS ((bfd_format format));
2219
2220 #endif
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