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* elfcode.h (NAME(bfd_elf,record_link_assignment)): Add provide
[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, 1995 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 /* And even worse if your compiler has built-in boolean types... -law */
86 #if defined (__GNUG__) && (__GNUC_MINOR__ > 5)
87 #define TRUE_FALSE_ALREADY_DEFINED
88 #endif
89 #ifndef TRUE_FALSE_ALREADY_DEFINED
90 typedef enum bfd_boolean {false, true} boolean;
91 #define BFD_TRUE_FALSE
92 #else
93 /* Use enum names that will appear nowhere else. */
94 typedef enum bfd_boolean {bfd_fffalse, bfd_tttrue} boolean;
95 #endif
96
97 /* A pointer to a position in a file. */
98 /* FIXME: This should be using off_t from <sys/types.h>.
99 For now, try to avoid breaking stuff by not including <sys/types.h> here.
100 This will break on systems with 64-bit file offsets (e.g. 4.4BSD).
101 Probably the best long-term answer is to avoid using file_ptr AND off_t
102 in this header file, and to handle this in the BFD implementation
103 rather than in its interface. */
104 /* typedef off_t file_ptr; */
105 typedef long int file_ptr;
106
107 /* Support for different sizes of target format ints and addresses.
108 If the host implements 64-bit values, it defines BFD_HOST_64_BIT to
109 be the appropriate type. Otherwise, this code will fall back on
110 gcc's "long long" type if gcc is being used. BFD_HOST_64_BIT must
111 be defined in such a way as to be a valid type name by itself or
112 with "unsigned" prefixed. It should be a signed type by itself.
113
114 If neither is the case, then compilation will fail if 64-bit
115 targets are requested. If you don't request any 64-bit targets,
116 you should be safe. */
117
118 #ifdef BFD64
119
120 #if defined (__GNUC__) && !defined (BFD_HOST_64_BIT)
121 #define BFD_HOST_64_BIT long long
122 typedef BFD_HOST_64_BIT int64_type;
123 typedef unsigned BFD_HOST_64_BIT uint64_type;
124 #endif
125
126 #if !defined (uint64_type) && defined (__GNUC__)
127 #define uint64_type unsigned long long
128 #define int64_type long long
129 #endif
130 #ifndef uint64_typeLOW
131 #define uint64_typeLOW(x) ((unsigned long)(((x) & 0xffffffff)))
132 #define uint64_typeHIGH(x) ((unsigned long)(((x) >> 32) & 0xffffffff))
133 #endif
134
135 typedef unsigned BFD_HOST_64_BIT bfd_vma;
136 typedef BFD_HOST_64_BIT bfd_signed_vma;
137 typedef unsigned BFD_HOST_64_BIT bfd_size_type;
138 typedef unsigned BFD_HOST_64_BIT symvalue;
139 #ifndef fprintf_vma
140 #define fprintf_vma(s,x) \
141 fprintf(s,"%08lx%08lx", uint64_typeHIGH(x), uint64_typeLOW(x))
142 #define sprintf_vma(s,x) \
143 sprintf(s,"%08lx%08lx", uint64_typeHIGH(x), uint64_typeLOW(x))
144 #endif
145 #else /* not BFD64 */
146
147 /* Represent a target address. Also used as a generic unsigned type
148 which is guaranteed to be big enough to hold any arithmetic types
149 we need to deal with. */
150 typedef unsigned long bfd_vma;
151
152 /* A generic signed type which is guaranteed to be big enough to hold any
153 arithmetic types we need to deal with. Can be assumed to be compatible
154 with bfd_vma in the same way that signed and unsigned ints are compatible
155 (as parameters, in assignment, etc). */
156 typedef long bfd_signed_vma;
157
158 typedef unsigned long symvalue;
159 typedef unsigned long bfd_size_type;
160
161 /* Print a bfd_vma x on stream s. */
162 #define fprintf_vma(s,x) fprintf(s, "%08lx", x)
163 #define sprintf_vma(s,x) sprintf(s, "%08lx", x)
164 #endif /* not BFD64 */
165 #define printf_vma(x) fprintf_vma(stdout,x)
166
167 typedef unsigned int flagword; /* 32 bits of flags */
168 typedef unsigned char bfd_byte;
169 \f
170 /** File formats */
171
172 typedef enum bfd_format {
173 bfd_unknown = 0, /* file format is unknown */
174 bfd_object, /* linker/assember/compiler output */
175 bfd_archive, /* object archive file */
176 bfd_core, /* core dump */
177 bfd_type_end} /* marks the end; don't use it! */
178 bfd_format;
179
180 /* Values that may appear in the flags field of a BFD. These also
181 appear in the object_flags field of the bfd_target structure, where
182 they indicate the set of flags used by that backend (not all flags
183 are meaningful for all object file formats) (FIXME: at the moment,
184 the object_flags values have mostly just been copied from backend
185 to another, and are not necessarily correct). */
186
187 /* No flags. */
188 #define NO_FLAGS 0x00
189
190 /* BFD contains relocation entries. */
191 #define HAS_RELOC 0x01
192
193 /* BFD is directly executable. */
194 #define EXEC_P 0x02
195
196 /* BFD has line number information (basically used for F_LNNO in a
197 COFF header). */
198 #define HAS_LINENO 0x04
199
200 /* BFD has debugging information. */
201 #define HAS_DEBUG 0x08
202
203 /* BFD has symbols. */
204 #define HAS_SYMS 0x10
205
206 /* BFD has local symbols (basically used for F_LSYMS in a COFF
207 header). */
208 #define HAS_LOCALS 0x20
209
210 /* BFD is a dynamic object. */
211 #define DYNAMIC 0x40
212
213 /* Text section is write protected (if D_PAGED is not set, this is
214 like an a.out NMAGIC file) (the linker sets this by default, but
215 clears it for -r or -N). */
216 #define WP_TEXT 0x80
217
218 /* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the
219 linker sets this by default, but clears it for -r or -n or -N). */
220 #define D_PAGED 0x100
221
222 /* BFD is relaxable (this means that bfd_relax_section may be able to
223 do something) (sometimes bfd_relax_section can do something even if
224 this is not set). */
225 #define BFD_IS_RELAXABLE 0x200
226
227 /* This may be set before writing out a BFD to request using a
228 traditional format. For example, this is used to request that when
229 writing out an a.out object the symbols not be hashed to eliminate
230 duplicates. */
231 #define BFD_TRADITIONAL_FORMAT 0x400
232 \f
233 /* symbols and relocation */
234
235 /* A count of carsyms (canonical archive symbols). */
236 typedef unsigned long symindex;
237
238 /* How to perform a relocation. */
239 typedef const struct reloc_howto_struct reloc_howto_type;
240
241 #define BFD_NO_MORE_SYMBOLS ((symindex) ~0)
242
243 /* General purpose part of a symbol X;
244 target specific parts are in libcoff.h, libaout.h, etc. */
245
246 #define bfd_get_section(x) ((x)->section)
247 #define bfd_get_output_section(x) ((x)->section->output_section)
248 #define bfd_set_section(x,y) ((x)->section) = (y)
249 #define bfd_asymbol_base(x) ((x)->section->vma)
250 #define bfd_asymbol_value(x) (bfd_asymbol_base(x) + (x)->value)
251 #define bfd_asymbol_name(x) ((x)->name)
252 /*Perhaps future: #define bfd_asymbol_bfd(x) ((x)->section->owner)*/
253 #define bfd_asymbol_bfd(x) ((x)->the_bfd)
254 #define bfd_asymbol_flavour(x) (bfd_asymbol_bfd(x)->xvec->flavour)
255
256 /* A canonical archive symbol. */
257 /* This is a type pun with struct ranlib on purpose! */
258 typedef struct carsym {
259 char *name;
260 file_ptr file_offset; /* look here to find the file */
261 } carsym; /* to make these you call a carsymogen */
262
263
264 /* Used in generating armaps (archive tables of contents).
265 Perhaps just a forward definition would do? */
266 struct orl { /* output ranlib */
267 char **name; /* symbol name */
268 file_ptr pos; /* bfd* or file position */
269 int namidx; /* index into string table */
270 };
271 \f
272
273 /* Linenumber stuff */
274 typedef struct lineno_cache_entry {
275 unsigned int line_number; /* Linenumber from start of function*/
276 union {
277 struct symbol_cache_entry *sym; /* Function name */
278 unsigned long offset; /* Offset into section */
279 } u;
280 } alent;
281 \f
282 /* object and core file sections */
283
284 #define align_power(addr, align) \
285 ( ((addr) + ((1<<(align))-1)) & (-1 << (align)))
286
287 typedef struct sec *sec_ptr;
288
289 #define bfd_get_section_name(bfd, ptr) ((ptr)->name + 0)
290 #define bfd_get_section_vma(bfd, ptr) ((ptr)->vma + 0)
291 #define bfd_get_section_alignment(bfd, ptr) ((ptr)->alignment_power + 0)
292 #define bfd_section_name(bfd, ptr) ((ptr)->name)
293 #define bfd_section_size(bfd, ptr) (bfd_get_section_size_before_reloc(ptr))
294 #define bfd_section_vma(bfd, ptr) ((ptr)->vma)
295 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power)
296 #define bfd_get_section_flags(bfd, ptr) ((ptr)->flags + 0)
297 #define bfd_get_section_userdata(bfd, ptr) ((ptr)->userdata)
298
299 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0)
300
301 #define bfd_set_section_vma(bfd, ptr, val) (((ptr)->vma = (ptr)->lma= (val)), ((ptr)->user_set_vma = (boolean)true), true)
302 #define bfd_set_section_alignment(bfd, ptr, val) (((ptr)->alignment_power = (val)),true)
303 #define bfd_set_section_userdata(bfd, ptr, val) (((ptr)->userdata = (val)),true)
304
305 typedef struct stat stat_type;
306 \f
307 typedef enum bfd_print_symbol
308 {
309 bfd_print_symbol_name,
310 bfd_print_symbol_more,
311 bfd_print_symbol_all
312 } bfd_print_symbol_type;
313
314 /* Information about a symbol that nm needs. */
315
316 typedef struct _symbol_info
317 {
318 symvalue value;
319 char type;
320 CONST char *name; /* Symbol name. */
321 char stab_other; /* Unused. */
322 short stab_desc; /* Info for N_TYPE. */
323 CONST char *stab_name;
324 } symbol_info;
325 \f
326 /* Hash table routines. There is no way to free up a hash table. */
327
328 /* An element in the hash table. Most uses will actually use a larger
329 structure, and an instance of this will be the first field. */
330
331 struct bfd_hash_entry
332 {
333 /* Next entry for this hash code. */
334 struct bfd_hash_entry *next;
335 /* String being hashed. */
336 const char *string;
337 /* Hash code. This is the full hash code, not the index into the
338 table. */
339 unsigned long hash;
340 };
341
342 /* A hash table. */
343
344 struct bfd_hash_table
345 {
346 /* The hash array. */
347 struct bfd_hash_entry **table;
348 /* The number of slots in the hash table. */
349 unsigned int size;
350 /* A function used to create new elements in the hash table. The
351 first entry is itself a pointer to an element. When this
352 function is first invoked, this pointer will be NULL. However,
353 having the pointer permits a hierarchy of method functions to be
354 built each of which calls the function in the superclass. Thus
355 each function should be written to allocate a new block of memory
356 only if the argument is NULL. */
357 struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
358 struct bfd_hash_table *,
359 const char *));
360 /* An obstack for this hash table. */
361 struct obstack memory;
362 };
363
364 /* Initialize a hash table. */
365 extern boolean bfd_hash_table_init
366 PARAMS ((struct bfd_hash_table *,
367 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
368 struct bfd_hash_table *,
369 const char *)));
370
371 /* Initialize a hash table specifying a size. */
372 extern boolean bfd_hash_table_init_n
373 PARAMS ((struct bfd_hash_table *,
374 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
375 struct bfd_hash_table *,
376 const char *),
377 unsigned int size));
378
379 /* Free up a hash table. */
380 extern void bfd_hash_table_free PARAMS ((struct bfd_hash_table *));
381
382 /* Look up a string in a hash table. If CREATE is true, a new entry
383 will be created for this string if one does not already exist. The
384 COPY argument must be true if this routine should copy the string
385 into newly allocated memory when adding an entry. */
386 extern struct bfd_hash_entry *bfd_hash_lookup
387 PARAMS ((struct bfd_hash_table *, const char *, boolean create,
388 boolean copy));
389
390 /* Base method for creating a hash table entry. */
391 extern struct bfd_hash_entry *bfd_hash_newfunc
392 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *,
393 const char *));
394
395 /* Grab some space for a hash table entry. */
396 extern PTR bfd_hash_allocate PARAMS ((struct bfd_hash_table *,
397 unsigned int));
398
399 /* Traverse a hash table in a random order, calling a function on each
400 element. If the function returns false, the traversal stops. The
401 INFO argument is passed to the function. */
402 extern void bfd_hash_traverse PARAMS ((struct bfd_hash_table *,
403 boolean (*) (struct bfd_hash_entry *,
404 PTR),
405 PTR info));
406 \f
407 /* Semi-portable string concatenation in cpp.
408 The CAT4 hack is to avoid a problem with some strict ANSI C preprocessors.
409 The problem is, "32_" is not a valid preprocessing token, and we don't
410 want extra underscores (e.g., "nlm_32_"). The XCAT2 macro will cause the
411 inner CAT macros to be evaluated first, producing still-valid pp-tokens.
412 Then the final concatenation can be done. (Sigh.) */
413 #ifndef CAT
414 #ifdef SABER
415 #define CAT(a,b) a##b
416 #define CAT3(a,b,c) a##b##c
417 #define CAT4(a,b,c,d) a##b##c##d
418 #else
419 #if defined(__STDC__) || defined(ALMOST_STDC)
420 #define CAT(a,b) a##b
421 #define CAT3(a,b,c) a##b##c
422 #define XCAT2(a,b) CAT(a,b)
423 #define CAT4(a,b,c,d) XCAT2(CAT(a,b),CAT(c,d))
424 #else
425 #define CAT(a,b) a/**/b
426 #define CAT3(a,b,c) a/**/b/**/c
427 #define CAT4(a,b,c,d) a/**/b/**/c/**/d
428 #endif
429 #endif
430 #endif
431
432 #define COFF_SWAP_TABLE (PTR) &bfd_coff_std_swap_table
433 \f
434 /* User program access to BFD facilities */
435
436 /* Direct I/O routines, for programs which know more about the object
437 file than BFD does. Use higher level routines if possible. */
438
439 extern bfd_size_type bfd_read
440 PARAMS ((PTR, bfd_size_type size, bfd_size_type nitems, bfd *abfd));
441 extern bfd_size_type bfd_write
442 PARAMS ((const PTR, bfd_size_type size, bfd_size_type nitems, bfd *abfd));
443 extern int bfd_seek PARAMS ((bfd *abfd, file_ptr fp, int direction));
444 extern long bfd_tell PARAMS ((bfd *abfd));
445 extern int bfd_flush PARAMS ((bfd *abfd));
446 extern int bfd_stat PARAMS ((bfd *abfd, struct stat *));
447
448 /* PE STUFF */
449 /* Also define some types which are used within bfdlink.h for the
450 bfd_link_info struct. These are not defined in bfdlink.h for a reason.
451 When the link_info data is passed to bfd from ld, it is copied into
452 extern variables defined in internal.h. The type class for these must
453 be available to any thing that includes internal.h. When internal.h is
454 included, it is always preceeded by an include on this file. If I leave the
455 type definitions in bfdlink.h, then I must include that file when ever
456 I include internal.h, and this is not always a good thing */
457
458 /* These are the different types of subsystems to be used when linking for
459 Windows NT. This information is passed in as an input parameter (default
460 is console) and ultimately ends up in the optional header data */
461 enum bfd_link_subsystem
462 {
463 native, /* image doesn't require a subsystem */
464 windows, /* image runs in the Windows GUI subsystem */
465 console, /* image runs in the Windows CUI (character) subsystem */
466 os2, /* image runs in the OS/2 character subsystem */
467 posix /* image runs in the posix character subsystem */
468 };
469 /* The NT optional header file allows input of the stack and heap reserve
470 and commit size. This data may be input on the command line and will
471 end up in the optional header. Default sizes are provided. */
472 struct _bfd_link_stack_heap
473 {
474 boolean stack_defined;
475 boolean heap_defined;
476 bfd_vma stack_reserve;
477 bfd_vma stack_commit;
478 bfd_vma heap_reserve;
479 bfd_vma heap_commit;
480 };
481 typedef struct _bfd_link_stack_heap bfd_link_stack_heap;
482
483 /* END OF PE STUFF */
484
485 extern enum bfd_link_subsystem NT_subsystem;
486 extern bfd_link_stack_heap NT_stack_heap;
487
488 /* Cast from const char * to char * so that caller can assign to
489 a char * without a warning. */
490 #define bfd_get_filename(abfd) ((char *) (abfd)->filename)
491 #define bfd_get_cacheable(abfd) ((abfd)->cacheable)
492 #define bfd_get_format(abfd) ((abfd)->format)
493 #define bfd_get_target(abfd) ((abfd)->xvec->name)
494 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour)
495 #define bfd_get_file_flags(abfd) ((abfd)->flags)
496 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
497 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
498 #define bfd_my_archive(abfd) ((abfd)->my_archive)
499 #define bfd_has_map(abfd) ((abfd)->has_armap)
500
501 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
502 #define bfd_usrdata(abfd) ((abfd)->usrdata)
503
504 #define bfd_get_start_address(abfd) ((abfd)->start_address)
505 #define bfd_get_symcount(abfd) ((abfd)->symcount)
506 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
507 #define bfd_count_sections(abfd) ((abfd)->section_count)
508
509 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
510
511 #define bfd_set_cacheable(abfd,bool) (((abfd)->cacheable = (boolean)(bool)), true)
512
513 /* Byte swapping routines. */
514
515 bfd_vma bfd_getb64 PARAMS ((const unsigned char *));
516 bfd_vma bfd_getl64 PARAMS ((const unsigned char *));
517 bfd_signed_vma bfd_getb_signed_64 PARAMS ((const unsigned char *));
518 bfd_signed_vma bfd_getl_signed_64 PARAMS ((const unsigned char *));
519 bfd_vma bfd_getb32 PARAMS ((const unsigned char *));
520 bfd_vma bfd_getl32 PARAMS ((const unsigned char *));
521 bfd_signed_vma bfd_getb_signed_32 PARAMS ((const unsigned char *));
522 bfd_signed_vma bfd_getl_signed_32 PARAMS ((const unsigned char *));
523 bfd_vma bfd_getb16 PARAMS ((const unsigned char *));
524 bfd_vma bfd_getl16 PARAMS ((const unsigned char *));
525 bfd_signed_vma bfd_getb_signed_16 PARAMS ((const unsigned char *));
526 bfd_signed_vma bfd_getl_signed_16 PARAMS ((const unsigned char *));
527 void bfd_putb64 PARAMS ((bfd_vma, unsigned char *));
528 void bfd_putl64 PARAMS ((bfd_vma, unsigned char *));
529 void bfd_putb32 PARAMS ((bfd_vma, unsigned char *));
530 void bfd_putl32 PARAMS ((bfd_vma, unsigned char *));
531 void bfd_putb16 PARAMS ((bfd_vma, unsigned char *));
532 void bfd_putl16 PARAMS ((bfd_vma, unsigned char *));
533 \f
534 /* Externally visible ECOFF routines. */
535
536 #if defined(__STDC__) || defined(ALMOST_STDC)
537 struct ecoff_debug_info;
538 struct ecoff_debug_swap;
539 struct ecoff_extr;
540 struct symbol_cache_entry;
541 struct bfd_link_info;
542 #endif
543 extern bfd_vma bfd_ecoff_get_gp_value PARAMS ((bfd * abfd));
544 extern boolean bfd_ecoff_set_gp_value PARAMS ((bfd *abfd, bfd_vma gp_value));
545 extern boolean bfd_ecoff_set_regmasks
546 PARAMS ((bfd *abfd, unsigned long gprmask, unsigned long fprmask,
547 unsigned long *cprmask));
548 extern PTR bfd_ecoff_debug_init
549 PARAMS ((bfd *output_bfd, struct ecoff_debug_info *output_debug,
550 const struct ecoff_debug_swap *output_swap,
551 struct bfd_link_info *));
552 extern void bfd_ecoff_debug_free
553 PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
554 const struct ecoff_debug_swap *output_swap,
555 struct bfd_link_info *));
556 extern boolean bfd_ecoff_debug_accumulate
557 PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
558 const struct ecoff_debug_swap *output_swap,
559 bfd *input_bfd, struct ecoff_debug_info *input_debug,
560 const struct ecoff_debug_swap *input_swap,
561 struct bfd_link_info *));
562 extern boolean bfd_ecoff_debug_accumulate_other
563 PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
564 const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
565 struct bfd_link_info *));
566 extern boolean bfd_ecoff_debug_externals
567 PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
568 const struct ecoff_debug_swap *swap,
569 boolean relocateable,
570 boolean (*get_extr) (struct symbol_cache_entry *,
571 struct ecoff_extr *),
572 void (*set_index) (struct symbol_cache_entry *,
573 bfd_size_type)));
574 extern boolean bfd_ecoff_debug_one_external
575 PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
576 const struct ecoff_debug_swap *swap,
577 const char *name, struct ecoff_extr *esym));
578 extern bfd_size_type bfd_ecoff_debug_size
579 PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
580 const struct ecoff_debug_swap *swap));
581 extern boolean bfd_ecoff_write_debug
582 PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
583 const struct ecoff_debug_swap *swap, file_ptr where));
584 extern boolean bfd_ecoff_write_accumulated_debug
585 PARAMS ((PTR handle, bfd *abfd, struct ecoff_debug_info *debug,
586 const struct ecoff_debug_swap *swap,
587 struct bfd_link_info *info, file_ptr where));
588 extern boolean bfd_mips_ecoff_create_embedded_relocs
589 PARAMS ((bfd *, struct bfd_link_info *, struct sec *, struct sec *,
590 char **));
591
592 /* Externally visible ELF routines. */
593
594 extern boolean bfd_elf32_record_link_assignment
595 PARAMS ((bfd *, struct bfd_link_info *, const char *, boolean));
596 extern boolean bfd_elf64_record_link_assignment
597 PARAMS ((bfd *, struct bfd_link_info *, const char *, boolean));
598 struct bfd_elf_link_needed_list
599 {
600 struct bfd_elf_link_needed_list *next;
601 bfd *by;
602 const char *name;
603 };
604 extern struct bfd_elf_link_needed_list *bfd_elf_get_needed_list
605 PARAMS ((bfd *, struct bfd_link_info *));
606 extern boolean bfd_elf32_size_dynamic_sections
607 PARAMS ((bfd *, const char *, const char *, boolean,
608 struct bfd_link_info *, struct sec **));
609 extern boolean bfd_elf64_size_dynamic_sections
610 PARAMS ((bfd *, const char *, const char *, boolean,
611 struct bfd_link_info *, struct sec **));
612 extern void bfd_elf_set_dt_needed_name PARAMS ((bfd *, const char *));
613
614 /* SunOS shared library support routines for the linker. */
615
616 extern boolean bfd_sunos_record_link_assignment
617 PARAMS ((bfd *, struct bfd_link_info *, const char *));
618 extern boolean bfd_sunos_size_dynamic_sections
619 PARAMS ((bfd *, struct bfd_link_info *, struct sec **, struct sec **,
620 struct sec **));
621
622 /* Linux shared library support routines for the linker. */
623
624 extern boolean bfd_linux_size_dynamic_sections
625 PARAMS ((bfd *, struct bfd_link_info *));
626
627 /* And more from the source. */
628 void
629 bfd_init PARAMS ((void));
630
631 bfd *
632 bfd_openr PARAMS ((CONST char *filename, CONST char *target));
633
634 bfd *
635 bfd_fdopenr PARAMS ((CONST char *filename, CONST char *target, int fd));
636
637 bfd *
638 bfd_openstreamr PARAMS (());
639
640 bfd *
641 bfd_openw PARAMS ((CONST char *filename, CONST char *target));
642
643 boolean
644 bfd_close PARAMS ((bfd *abfd));
645
646 boolean
647 bfd_close_all_done PARAMS ((bfd *));
648
649 bfd_size_type
650 bfd_alloc_size PARAMS ((bfd *abfd));
651
652 bfd *
653 bfd_create PARAMS ((CONST char *filename, bfd *templ));
654
655
656 /* Byte swapping macros for user section data. */
657
658 #define bfd_put_8(abfd, val, ptr) \
659 (*((unsigned char *)(ptr)) = (unsigned char)(val))
660 #define bfd_put_signed_8 \
661 bfd_put_8
662 #define bfd_get_8(abfd, ptr) \
663 (*(unsigned char *)(ptr))
664 #define bfd_get_signed_8(abfd, ptr) \
665 ((*(unsigned char *)(ptr) ^ 0x80) - 0x80)
666
667 #define bfd_put_16(abfd, val, ptr) \
668 BFD_SEND(abfd, bfd_putx16, ((val),(ptr)))
669 #define bfd_put_signed_16 \
670 bfd_put_16
671 #define bfd_get_16(abfd, ptr) \
672 BFD_SEND(abfd, bfd_getx16, (ptr))
673 #define bfd_get_signed_16(abfd, ptr) \
674 BFD_SEND (abfd, bfd_getx_signed_16, (ptr))
675
676 #define bfd_put_32(abfd, val, ptr) \
677 BFD_SEND(abfd, bfd_putx32, ((val),(ptr)))
678 #define bfd_put_signed_32 \
679 bfd_put_32
680 #define bfd_get_32(abfd, ptr) \
681 BFD_SEND(abfd, bfd_getx32, (ptr))
682 #define bfd_get_signed_32(abfd, ptr) \
683 BFD_SEND(abfd, bfd_getx_signed_32, (ptr))
684
685 #define bfd_put_64(abfd, val, ptr) \
686 BFD_SEND(abfd, bfd_putx64, ((val), (ptr)))
687 #define bfd_put_signed_64 \
688 bfd_put_64
689 #define bfd_get_64(abfd, ptr) \
690 BFD_SEND(abfd, bfd_getx64, (ptr))
691 #define bfd_get_signed_64(abfd, ptr) \
692 BFD_SEND(abfd, bfd_getx_signed_64, (ptr))
693
694
695 /* Byte swapping macros for file header data. */
696
697 #define bfd_h_put_8(abfd, val, ptr) \
698 bfd_put_8 (abfd, val, ptr)
699 #define bfd_h_put_signed_8(abfd, val, ptr) \
700 bfd_put_8 (abfd, val, ptr)
701 #define bfd_h_get_8(abfd, ptr) \
702 bfd_get_8 (abfd, ptr)
703 #define bfd_h_get_signed_8(abfd, ptr) \
704 bfd_get_signed_8 (abfd, ptr)
705
706 #define bfd_h_put_16(abfd, val, ptr) \
707 BFD_SEND(abfd, bfd_h_putx16,(val,ptr))
708 #define bfd_h_put_signed_16 \
709 bfd_h_put_16
710 #define bfd_h_get_16(abfd, ptr) \
711 BFD_SEND(abfd, bfd_h_getx16,(ptr))
712 #define bfd_h_get_signed_16(abfd, ptr) \
713 BFD_SEND(abfd, bfd_h_getx_signed_16, (ptr))
714
715 #define bfd_h_put_32(abfd, val, ptr) \
716 BFD_SEND(abfd, bfd_h_putx32,(val,ptr))
717 #define bfd_h_put_signed_32 \
718 bfd_h_put_32
719 #define bfd_h_get_32(abfd, ptr) \
720 BFD_SEND(abfd, bfd_h_getx32,(ptr))
721 #define bfd_h_get_signed_32(abfd, ptr) \
722 BFD_SEND(abfd, bfd_h_getx_signed_32, (ptr))
723
724 #define bfd_h_put_64(abfd, val, ptr) \
725 BFD_SEND(abfd, bfd_h_putx64,(val, ptr))
726 #define bfd_h_put_signed_64 \
727 bfd_h_put_64
728 #define bfd_h_get_64(abfd, ptr) \
729 BFD_SEND(abfd, bfd_h_getx64,(ptr))
730 #define bfd_h_get_signed_64(abfd, ptr) \
731 BFD_SEND(abfd, bfd_h_getx_signed_64, (ptr))
732
733 typedef struct sec
734 {
735 /* The name of the section; the name isn't a copy, the pointer is
736 the same as that passed to bfd_make_section. */
737
738 CONST char *name;
739
740 /* Which section is it; 0..nth. */
741
742 int index;
743
744 /* The next section in the list belonging to the BFD, or NULL. */
745
746 struct sec *next;
747
748 /* The field flags contains attributes of the section. Some
749 flags are read in from the object file, and some are
750 synthesized from other information. */
751
752 flagword flags;
753
754 #define SEC_NO_FLAGS 0x000
755
756 /* Tells the OS to allocate space for this section when loading.
757 This is clear for a section containing debug information
758 only. */
759 #define SEC_ALLOC 0x001
760
761 /* Tells the OS to load the section from the file when loading.
762 This is clear for a .bss section. */
763 #define SEC_LOAD 0x002
764
765 /* The section contains data still to be relocated, so there is
766 some relocation information too. */
767 #define SEC_RELOC 0x004
768
769 #if 0 /* Obsolete ? */
770 #define SEC_BALIGN 0x008
771 #endif
772
773 /* A signal to the OS that the section contains read only
774 data. */
775 #define SEC_READONLY 0x010
776
777 /* The section contains code only. */
778 #define SEC_CODE 0x020
779
780 /* The section contains data only. */
781 #define SEC_DATA 0x040
782
783 /* The section will reside in ROM. */
784 #define SEC_ROM 0x080
785
786 /* The section contains constructor information. This section
787 type is used by the linker to create lists of constructors and
788 destructors used by <<g++>>. When a back end sees a symbol
789 which should be used in a constructor list, it creates a new
790 section for the type of name (e.g., <<__CTOR_LIST__>>), attaches
791 the symbol to it, and builds a relocation. To build the lists
792 of constructors, all the linker has to do is catenate all the
793 sections called <<__CTOR_LIST__>> and relocate the data
794 contained within - exactly the operations it would peform on
795 standard data. */
796 #define SEC_CONSTRUCTOR 0x100
797
798 /* The section is a constuctor, and should be placed at the
799 end of the text, data, or bss section(?). */
800 #define SEC_CONSTRUCTOR_TEXT 0x1100
801 #define SEC_CONSTRUCTOR_DATA 0x2100
802 #define SEC_CONSTRUCTOR_BSS 0x3100
803
804 /* The section has contents - a data section could be
805 <<SEC_ALLOC>> | <<SEC_HAS_CONTENTS>>; a debug section could be
806 <<SEC_HAS_CONTENTS>> */
807 #define SEC_HAS_CONTENTS 0x200
808
809 /* An instruction to the linker to not output the section
810 even if it has information which would normally be written. */
811 #define SEC_NEVER_LOAD 0x400
812
813 /* The section is a COFF shared library section. This flag is
814 only for the linker. If this type of section appears in
815 the input file, the linker must copy it to the output file
816 without changing the vma or size. FIXME: Although this
817 was originally intended to be general, it really is COFF
818 specific (and the flag was renamed to indicate this). It
819 might be cleaner to have some more general mechanism to
820 allow the back end to control what the linker does with
821 sections. */
822 #define SEC_COFF_SHARED_LIBRARY 0x800
823
824 /* The section is a common section (symbols may be defined
825 multiple times, the value of a symbol is the amount of
826 space it requires, and the largest symbol value is the one
827 used). Most targets have exactly one of these (which we
828 translate to bfd_com_section_ptr), but ECOFF has two. */
829 #define SEC_IS_COMMON 0x8000
830
831 /* The section contains only debugging information. For
832 example, this is set for ELF .debug and .stab sections.
833 strip tests this flag to see if a section can be
834 discarded. */
835 #define SEC_DEBUGGING 0x10000
836
837 /* The contents of this section are held in memory pointed to
838 by the contents field. This is checked by
839 bfd_get_section_contents, and the data is retrieved from
840 memory if appropriate. */
841 #define SEC_IN_MEMORY 0x20000
842
843 /* End of section flags. */
844
845 /* The virtual memory address of the section - where it will be
846 at run time. The symbols are relocated against this. The
847 user_set_vma flag is maintained by bfd; if it's not set, the
848 backend can assign addresses (for example, in <<a.out>>, where
849 the default address for <<.data>> is dependent on the specific
850 target and various flags). */
851
852 bfd_vma vma;
853 boolean user_set_vma;
854
855 /* The load address of the section - where it would be in a
856 rom image; really only used for writing section header
857 information. */
858
859 bfd_vma lma;
860
861 /* The size of the section in bytes, as it will be output.
862 contains a value even if the section has no contents (e.g., the
863 size of <<.bss>>). This will be filled in after relocation */
864
865 bfd_size_type _cooked_size;
866
867 /* The original size on disk of the section, in bytes. Normally this
868 value is the same as the size, but if some relaxing has
869 been done, then this value will be bigger. */
870
871 bfd_size_type _raw_size;
872
873 /* If this section is going to be output, then this value is the
874 offset into the output section of the first byte in the input
875 section. E.g., if this was going to start at the 100th byte in
876 the output section, this value would be 100. */
877
878 bfd_vma output_offset;
879
880 /* The output section through which to map on output. */
881
882 struct sec *output_section;
883
884 /* The alignment requirement of the section, as an exponent of 2 -
885 e.g., 3 aligns to 2^3 (or 8). */
886
887 unsigned int alignment_power;
888
889 /* If an input section, a pointer to a vector of relocation
890 records for the data in this section. */
891
892 struct reloc_cache_entry *relocation;
893
894 /* If an output section, a pointer to a vector of pointers to
895 relocation records for the data in this section. */
896
897 struct reloc_cache_entry **orelocation;
898
899 /* The number of relocation records in one of the above */
900
901 unsigned reloc_count;
902
903 /* Information below is back end specific - and not always used
904 or updated. */
905
906 /* File position of section data */
907
908 file_ptr filepos;
909
910 /* File position of relocation info */
911
912 file_ptr rel_filepos;
913
914 /* File position of line data */
915
916 file_ptr line_filepos;
917
918 /* Pointer to data for applications */
919
920 PTR userdata;
921
922 /* If the SEC_IN_MEMORY flag is set, this points to the actual
923 contents. */
924 unsigned char *contents;
925
926 /* Attached line number information */
927
928 alent *lineno;
929
930 /* Number of line number records */
931
932 unsigned int lineno_count;
933
934 /* When a section is being output, this value changes as more
935 linenumbers are written out */
936
937 file_ptr moving_line_filepos;
938
939 /* What the section number is in the target world */
940
941 int target_index;
942
943 PTR used_by_bfd;
944
945 /* If this is a constructor section then here is a list of the
946 relocations created to relocate items within it. */
947
948 struct relent_chain *constructor_chain;
949
950 /* The BFD which owns the section. */
951
952 bfd *owner;
953
954 boolean reloc_done;
955 /* A symbol which points at this section only */
956 struct symbol_cache_entry *symbol;
957 struct symbol_cache_entry **symbol_ptr_ptr;
958
959 struct bfd_link_order *link_order_head;
960 struct bfd_link_order *link_order_tail;
961 } asection ;
962
963 /* These sections are global, and are managed by BFD. The application
964 and target back end are not permitted to change the values in
965 these sections. New code should use the section_ptr macros rather
966 than referring directly to the const sections. The const sections
967 may eventually vanish. */
968 #define BFD_ABS_SECTION_NAME "*ABS*"
969 #define BFD_UND_SECTION_NAME "*UND*"
970 #define BFD_COM_SECTION_NAME "*COM*"
971 #define BFD_IND_SECTION_NAME "*IND*"
972
973 /* the absolute section */
974 extern const asection bfd_abs_section;
975 #define bfd_abs_section_ptr ((asection *) &bfd_abs_section)
976 #define bfd_is_abs_section(sec) ((sec) == bfd_abs_section_ptr)
977 /* Pointer to the undefined section */
978 extern const asection bfd_und_section;
979 #define bfd_und_section_ptr ((asection *) &bfd_und_section)
980 #define bfd_is_und_section(sec) ((sec) == bfd_und_section_ptr)
981 /* Pointer to the common section */
982 extern const asection bfd_com_section;
983 #define bfd_com_section_ptr ((asection *) &bfd_com_section)
984 /* Pointer to the indirect section */
985 extern const asection bfd_ind_section;
986 #define bfd_ind_section_ptr ((asection *) &bfd_ind_section)
987 #define bfd_is_ind_section(sec) ((sec) == bfd_ind_section_ptr)
988
989 extern const struct symbol_cache_entry * const bfd_abs_symbol;
990 extern const struct symbol_cache_entry * const bfd_com_symbol;
991 extern const struct symbol_cache_entry * const bfd_und_symbol;
992 extern const struct symbol_cache_entry * const bfd_ind_symbol;
993 #define bfd_get_section_size_before_reloc(section) \
994 (section->reloc_done ? (abort(),1): (section)->_raw_size)
995 #define bfd_get_section_size_after_reloc(section) \
996 ((section->reloc_done) ? (section)->_cooked_size: (abort(),1))
997 asection *
998 bfd_get_section_by_name PARAMS ((bfd *abfd, CONST char *name));
999
1000 asection *
1001 bfd_make_section_old_way PARAMS ((bfd *abfd, CONST char *name));
1002
1003 asection *
1004 bfd_make_section_anyway PARAMS ((bfd *abfd, CONST char *name));
1005
1006 asection *
1007 bfd_make_section PARAMS ((bfd *, CONST char *name));
1008
1009 boolean
1010 bfd_set_section_flags PARAMS ((bfd *abfd, asection *sec, flagword flags));
1011
1012 void
1013 bfd_map_over_sections PARAMS ((bfd *abfd,
1014 void (*func)(bfd *abfd,
1015 asection *sect,
1016 PTR obj),
1017 PTR obj));
1018
1019 boolean
1020 bfd_set_section_size PARAMS ((bfd *abfd, asection *sec, bfd_size_type val));
1021
1022 boolean
1023 bfd_set_section_contents
1024 PARAMS ((bfd *abfd,
1025 asection *section,
1026 PTR data,
1027 file_ptr offset,
1028 bfd_size_type count));
1029
1030 boolean
1031 bfd_get_section_contents
1032 PARAMS ((bfd *abfd, asection *section, PTR location,
1033 file_ptr offset, bfd_size_type count));
1034
1035 boolean
1036 bfd_copy_private_section_data PARAMS ((bfd *ibfd, asection *isec, bfd *obfd, asection *osec));
1037
1038 #define bfd_copy_private_section_data(ibfd, isection, obfd, osection) \
1039 BFD_SEND (ibfd, _bfd_copy_private_section_data, \
1040 (ibfd, isection, obfd, osection))
1041 enum bfd_architecture
1042 {
1043 bfd_arch_unknown, /* File arch not known */
1044 bfd_arch_obscure, /* Arch known, not one of these */
1045 bfd_arch_m68k, /* Motorola 68xxx */
1046 bfd_arch_vax, /* DEC Vax */
1047 bfd_arch_i960, /* Intel 960 */
1048 /* The order of the following is important.
1049 lower number indicates a machine type that
1050 only accepts a subset of the instructions
1051 available to machines with higher numbers.
1052 The exception is the "ca", which is
1053 incompatible with all other machines except
1054 "core". */
1055
1056 #define bfd_mach_i960_core 1
1057 #define bfd_mach_i960_ka_sa 2
1058 #define bfd_mach_i960_kb_sb 3
1059 #define bfd_mach_i960_mc 4
1060 #define bfd_mach_i960_xa 5
1061 #define bfd_mach_i960_ca 6
1062 /* start-sanitize-i960xl */
1063 #define bfd_mach_i960_xl 7
1064 /* end-sanitize-i960xl */
1065
1066 bfd_arch_a29k, /* AMD 29000 */
1067 bfd_arch_sparc, /* SPARC */
1068 bfd_arch_mips, /* MIPS Rxxxx */
1069 bfd_arch_i386, /* Intel 386 */
1070 bfd_arch_we32k, /* AT&T WE32xxx */
1071 bfd_arch_tahoe, /* CCI/Harris Tahoe */
1072 bfd_arch_i860, /* Intel 860 */
1073 bfd_arch_romp, /* IBM ROMP PC/RT */
1074 bfd_arch_alliant, /* Alliant */
1075 bfd_arch_convex, /* Convex */
1076 bfd_arch_m88k, /* Motorola 88xxx */
1077 bfd_arch_pyramid, /* Pyramid Technology */
1078 bfd_arch_h8300, /* Hitachi H8/300 */
1079 #define bfd_mach_h8300 1
1080 #define bfd_mach_h8300h 2
1081 bfd_arch_powerpc, /* PowerPC */
1082 bfd_arch_rs6000, /* IBM RS/6000 */
1083 bfd_arch_hppa, /* HP PA RISC */
1084 bfd_arch_z8k, /* Zilog Z8000 */
1085 #define bfd_mach_z8001 1
1086 #define bfd_mach_z8002 2
1087 bfd_arch_h8500, /* Hitachi H8/500 */
1088 bfd_arch_sh, /* Hitachi SH */
1089 bfd_arch_alpha, /* Dec Alpha */
1090 bfd_arch_arm, /* Advanced Risc Machines ARM */
1091 bfd_arch_ns32k, /* National Semiconductors ns32000 */
1092 bfd_arch_w65, /* WDC 65816 */
1093 /* start-sanitize-rce */
1094 bfd_arch_rce, /* Motorola RCE */
1095 /* end-sanitize-rce */
1096 /* start-sanitize-arc */
1097 bfd_arch_arc, /* Argonaut RISC Core */
1098 #define bfd_mach_arc_base 0
1099 #define bfd_mach_arc_host 1
1100 #define bfd_mach_arc_graphics 2
1101 #define bfd_mach_arc_audio 3
1102 /* end-sanitize-arc */
1103 bfd_arch_last
1104 };
1105
1106 typedef struct bfd_arch_info
1107 {
1108 int bits_per_word;
1109 int bits_per_address;
1110 int bits_per_byte;
1111 enum bfd_architecture arch;
1112 long mach;
1113 char *arch_name;
1114 CONST char *printable_name;
1115 unsigned int section_align_power;
1116 /* true if this is the default machine for the architecture */
1117 boolean the_default;
1118 CONST struct bfd_arch_info * (*compatible)
1119 PARAMS ((CONST struct bfd_arch_info *a,
1120 CONST struct bfd_arch_info *b));
1121
1122 boolean (*scan) PARAMS ((CONST struct bfd_arch_info *, CONST char *));
1123 /* How to disassemble an instruction, producing a printable
1124 representation on a specified stdio stream. This isn't
1125 defined for most processors at present, because of the size
1126 of the additional tables it would drag in, and because gdb
1127 wants to use a different interface. */
1128 unsigned int (*disassemble) PARAMS ((bfd_vma addr, CONST char *data,
1129 PTR stream));
1130
1131 struct bfd_arch_info *next;
1132 } bfd_arch_info_type;
1133 CONST char *
1134 bfd_printable_name PARAMS ((bfd *abfd));
1135
1136 bfd_arch_info_type *
1137 bfd_scan_arch PARAMS ((CONST char *string));
1138
1139 CONST bfd_arch_info_type *
1140 bfd_arch_get_compatible PARAMS ((
1141 CONST bfd *abfd,
1142 CONST bfd *bbfd));
1143
1144 void
1145 bfd_set_arch_info PARAMS ((bfd *abfd, bfd_arch_info_type *arg));
1146
1147 enum bfd_architecture
1148 bfd_get_arch PARAMS ((bfd *abfd));
1149
1150 unsigned long
1151 bfd_get_mach PARAMS ((bfd *abfd));
1152
1153 unsigned int
1154 bfd_arch_bits_per_byte PARAMS ((bfd *abfd));
1155
1156 unsigned int
1157 bfd_arch_bits_per_address PARAMS ((bfd *abfd));
1158
1159 bfd_arch_info_type *
1160 bfd_get_arch_info PARAMS ((bfd *abfd));
1161
1162 bfd_arch_info_type *
1163 bfd_lookup_arch
1164 PARAMS ((enum bfd_architecture
1165 arch,
1166 long machine));
1167
1168 CONST char *
1169 bfd_printable_arch_mach
1170 PARAMS ((enum bfd_architecture arch, unsigned long machine));
1171
1172 typedef enum bfd_reloc_status
1173 {
1174 /* No errors detected */
1175 bfd_reloc_ok,
1176
1177 /* The relocation was performed, but there was an overflow. */
1178 bfd_reloc_overflow,
1179
1180 /* The address to relocate was not within the section supplied. */
1181 bfd_reloc_outofrange,
1182
1183 /* Used by special functions */
1184 bfd_reloc_continue,
1185
1186 /* Unsupported relocation size requested. */
1187 bfd_reloc_notsupported,
1188
1189 /* Unused */
1190 bfd_reloc_other,
1191
1192 /* The symbol to relocate against was undefined. */
1193 bfd_reloc_undefined,
1194
1195 /* The relocation was performed, but may not be ok - presently
1196 generated only when linking i960 coff files with i960 b.out
1197 symbols. If this type is returned, the error_message argument
1198 to bfd_perform_relocation will be set. */
1199 bfd_reloc_dangerous
1200 }
1201 bfd_reloc_status_type;
1202
1203
1204 typedef struct reloc_cache_entry
1205 {
1206 /* A pointer into the canonical table of pointers */
1207 struct symbol_cache_entry **sym_ptr_ptr;
1208
1209 /* offset in section */
1210 bfd_size_type address;
1211
1212 /* addend for relocation value */
1213 bfd_vma addend;
1214
1215 /* Pointer to how to perform the required relocation */
1216 reloc_howto_type *howto;
1217
1218 } arelent;
1219 enum complain_overflow
1220 {
1221 /* Do not complain on overflow. */
1222 complain_overflow_dont,
1223
1224 /* Complain if the bitfield overflows, whether it is considered
1225 as signed or unsigned. */
1226 complain_overflow_bitfield,
1227
1228 /* Complain if the value overflows when considered as signed
1229 number. */
1230 complain_overflow_signed,
1231
1232 /* Complain if the value overflows when considered as an
1233 unsigned number. */
1234 complain_overflow_unsigned
1235 };
1236
1237 struct reloc_howto_struct
1238 {
1239 /* The type field has mainly a documetary use - the back end can
1240 do what it wants with it, though normally the back end's
1241 external idea of what a reloc number is stored
1242 in this field. For example, a PC relative word relocation
1243 in a coff environment has the type 023 - because that's
1244 what the outside world calls a R_PCRWORD reloc. */
1245 unsigned int type;
1246
1247 /* The value the final relocation is shifted right by. This drops
1248 unwanted data from the relocation. */
1249 unsigned int rightshift;
1250
1251 /* The size of the item to be relocated. This is *not* a
1252 power-of-two measure. To get the number of bytes operated
1253 on by a type of relocation, use bfd_get_reloc_size. */
1254 int size;
1255
1256 /* The number of bits in the item to be relocated. This is used
1257 when doing overflow checking. */
1258 unsigned int bitsize;
1259
1260 /* Notes that the relocation is relative to the location in the
1261 data section of the addend. The relocation function will
1262 subtract from the relocation value the address of the location
1263 being relocated. */
1264 boolean pc_relative;
1265
1266 /* The bit position of the reloc value in the destination.
1267 The relocated value is left shifted by this amount. */
1268 unsigned int bitpos;
1269
1270 /* What type of overflow error should be checked for when
1271 relocating. */
1272 enum complain_overflow complain_on_overflow;
1273
1274 /* If this field is non null, then the supplied function is
1275 called rather than the normal function. This allows really
1276 strange relocation methods to be accomodated (e.g., i960 callj
1277 instructions). */
1278 bfd_reloc_status_type (*special_function)
1279 PARAMS ((bfd *abfd,
1280 arelent *reloc_entry,
1281 struct symbol_cache_entry *symbol,
1282 PTR data,
1283 asection *input_section,
1284 bfd *output_bfd,
1285 char **error_message));
1286
1287 /* The textual name of the relocation type. */
1288 char *name;
1289
1290 /* When performing a partial link, some formats must modify the
1291 relocations rather than the data - this flag signals this.*/
1292 boolean partial_inplace;
1293
1294 /* The src_mask selects which parts of the read in data
1295 are to be used in the relocation sum. E.g., if this was an 8 bit
1296 bit of data which we read and relocated, this would be
1297 0x000000ff. When we have relocs which have an addend, such as
1298 sun4 extended relocs, the value in the offset part of a
1299 relocating field is garbage so we never use it. In this case
1300 the mask would be 0x00000000. */
1301 bfd_vma src_mask;
1302
1303 /* The dst_mask selects which parts of the instruction are replaced
1304 into the instruction. In most cases src_mask == dst_mask,
1305 except in the above special case, where dst_mask would be
1306 0x000000ff, and src_mask would be 0x00000000. */
1307 bfd_vma dst_mask;
1308
1309 /* When some formats create PC relative instructions, they leave
1310 the value of the pc of the place being relocated in the offset
1311 slot of the instruction, so that a PC relative relocation can
1312 be made just by adding in an ordinary offset (e.g., sun3 a.out).
1313 Some formats leave the displacement part of an instruction
1314 empty (e.g., m88k bcs); this flag signals the fact.*/
1315 boolean pcrel_offset;
1316
1317 };
1318 #define HOWTO(C, R,S,B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
1319 {(unsigned)C,R,S,B, P, BI, O,SF,NAME,INPLACE,MASKSRC,MASKDST,PC}
1320 #define NEWHOWTO( FUNCTION, NAME,SIZE,REL,IN) HOWTO(0,0,SIZE,0,REL,0,complain_overflow_dont,FUNCTION, NAME,false,0,0,IN)
1321
1322 #define HOWTO_PREPARE(relocation, symbol) \
1323 { \
1324 if (symbol != (asymbol *)NULL) { \
1325 if (bfd_is_com_section (symbol->section)) { \
1326 relocation = 0; \
1327 } \
1328 else { \
1329 relocation = symbol->value; \
1330 } \
1331 } \
1332 }
1333 int
1334 bfd_get_reloc_size PARAMS ((reloc_howto_type *));
1335
1336 typedef struct relent_chain {
1337 arelent relent;
1338 struct relent_chain *next;
1339 } arelent_chain;
1340 bfd_reloc_status_type
1341
1342 bfd_perform_relocation
1343 PARAMS ((bfd *abfd,
1344 arelent *reloc_entry,
1345 PTR data,
1346 asection *input_section,
1347 bfd *output_bfd,
1348 char **error_message));
1349
1350 bfd_reloc_status_type
1351
1352 bfd_install_relocation
1353 PARAMS ((bfd *abfd,
1354 arelent *reloc_entry,
1355 PTR data, bfd_vma data_start,
1356 asection *input_section,
1357 char **error_message));
1358
1359 enum bfd_reloc_code_real {
1360 _dummy_first_bfd_reloc_code_real,
1361
1362
1363 /* Basic absolute relocations of N bits. */
1364 BFD_RELOC_64,
1365 BFD_RELOC_32,
1366 BFD_RELOC_26,
1367 BFD_RELOC_16,
1368 BFD_RELOC_14,
1369 BFD_RELOC_8,
1370
1371 /* PC-relative relocations. Sometimes these are relative to the address
1372 of the relocation itself; sometimes they are relative to the start of
1373 the section containing the relocation. It depends on the specific target.
1374
1375 The 24-bit relocation is used in some Intel 960 configurations. */
1376 BFD_RELOC_64_PCREL,
1377 BFD_RELOC_32_PCREL,
1378 BFD_RELOC_24_PCREL,
1379 BFD_RELOC_16_PCREL,
1380 BFD_RELOC_12_PCREL,
1381 BFD_RELOC_8_PCREL,
1382
1383 /* For ELF. */
1384 BFD_RELOC_32_GOT_PCREL,
1385 BFD_RELOC_16_GOT_PCREL,
1386 BFD_RELOC_8_GOT_PCREL,
1387 BFD_RELOC_32_GOTOFF,
1388 BFD_RELOC_16_GOTOFF,
1389 BFD_RELOC_8_GOTOFF,
1390 BFD_RELOC_32_PLT_PCREL,
1391 BFD_RELOC_16_PLT_PCREL,
1392 BFD_RELOC_8_PLT_PCREL,
1393 BFD_RELOC_32_PLTOFF,
1394 BFD_RELOC_16_PLTOFF,
1395 BFD_RELOC_8_PLTOFF,
1396
1397 /* Relocations used by 68K ELF. */
1398 BFD_RELOC_68K_GLOB_DAT,
1399 BFD_RELOC_68K_JMP_SLOT,
1400 BFD_RELOC_68K_RELATIVE,
1401
1402 /* Linkage-table relative. */
1403 BFD_RELOC_32_BASEREL,
1404 BFD_RELOC_16_BASEREL,
1405 BFD_RELOC_8_BASEREL,
1406
1407 /* Absolute 8-bit relocation, but used to form an address like 0xFFnn. */
1408 BFD_RELOC_8_FFnn,
1409
1410 /* These PC-relative relocations are stored as word displacements --
1411 i.e., byte displacements shifted right two bits. The 30-bit word
1412 displacement (<<32_PCREL_S2>> -- 32 bits, shifted 2) is used on the
1413 SPARC. (SPARC tools generally refer to this as <<WDISP30>>.) The
1414 signed 16-bit displacement is used on the MIPS, and the 23-bit
1415 displacement is used on the Alpha. */
1416 BFD_RELOC_32_PCREL_S2,
1417 BFD_RELOC_16_PCREL_S2,
1418 BFD_RELOC_23_PCREL_S2,
1419
1420 /* High 22 bits and low 10 bits of 32-bit value, placed into lower bits of
1421 the target word. These are used on the SPARC. */
1422 BFD_RELOC_HI22,
1423 BFD_RELOC_LO10,
1424
1425 /* For systems that allocate a Global Pointer register, these are
1426 displacements off that register. These relocation types are
1427 handled specially, because the value the register will have is
1428 decided relatively late. */
1429 BFD_RELOC_GPREL16,
1430 BFD_RELOC_GPREL32,
1431
1432 /* Reloc types used for i960/b.out. */
1433 BFD_RELOC_I960_CALLJ,
1434
1435 /* SPARC ELF relocations. There is probably some overlap with other
1436 relocation types already defined. */
1437 BFD_RELOC_NONE,
1438 BFD_RELOC_SPARC_WDISP22,
1439 BFD_RELOC_SPARC22,
1440 BFD_RELOC_SPARC13,
1441 BFD_RELOC_SPARC_GOT10,
1442 BFD_RELOC_SPARC_GOT13,
1443 BFD_RELOC_SPARC_GOT22,
1444 BFD_RELOC_SPARC_PC10,
1445 BFD_RELOC_SPARC_PC22,
1446 BFD_RELOC_SPARC_WPLT30,
1447 BFD_RELOC_SPARC_COPY,
1448 BFD_RELOC_SPARC_GLOB_DAT,
1449 BFD_RELOC_SPARC_JMP_SLOT,
1450 BFD_RELOC_SPARC_RELATIVE,
1451 BFD_RELOC_SPARC_UA32,
1452
1453 /* I think these are specific to SPARC a.out (e.g., Sun 4). */
1454 BFD_RELOC_SPARC_BASE13,
1455 BFD_RELOC_SPARC_BASE22,
1456
1457 /* Some relocations we're using for SPARC V9 -- subject to change. */
1458 #define BFD_RELOC_SPARC_64 BFD_RELOC_64
1459 BFD_RELOC_SPARC_10,
1460 BFD_RELOC_SPARC_11,
1461 BFD_RELOC_SPARC_OLO10,
1462 BFD_RELOC_SPARC_HH22,
1463 BFD_RELOC_SPARC_HM10,
1464 BFD_RELOC_SPARC_LM22,
1465 BFD_RELOC_SPARC_PC_HH22,
1466 BFD_RELOC_SPARC_PC_HM10,
1467 BFD_RELOC_SPARC_PC_LM22,
1468 BFD_RELOC_SPARC_WDISP16,
1469 BFD_RELOC_SPARC_WDISP19,
1470 BFD_RELOC_SPARC_GLOB_JMP,
1471 BFD_RELOC_SPARC_LO7,
1472
1473 /* Alpha ECOFF relocations. Some of these treat the symbol or "addend"
1474 in some special way.
1475 For GPDISP_HI16 ("gpdisp") relocations, the symbol is ignored when
1476 writing; when reading, it will be the absolute section symbol. The
1477 addend is the displacement in bytes of the "lda" instruction from
1478 the "ldah" instruction (which is at the address of this reloc). */
1479 BFD_RELOC_ALPHA_GPDISP_HI16,
1480
1481 /* For GPDISP_LO16 ("ignore") relocations, the symbol is handled as
1482 with GPDISP_HI16 relocs. The addend is ignored when writing the
1483 relocations out, and is filled in with the file's GP value on
1484 reading, for convenience. */
1485 BFD_RELOC_ALPHA_GPDISP_LO16,
1486
1487 /* The Alpha LITERAL/LITUSE relocs are produced by a symbol reference;
1488 the assembler turns it into a LDQ instruction to load the address of
1489 the symbol, and then fills in a register in the real instruction.
1490
1491 The LITERAL reloc, at the LDQ instruction, refers to the .lita
1492 section symbol. The addend is ignored when writing, but is filled
1493 in with the file's GP value on reading, for convenience, as with the
1494 GPDISP_LO16 reloc.
1495
1496 The LITUSE reloc, on the instruction using the loaded address, gives
1497 information to the linker that it might be able to use to optimize
1498 away some literal section references. The symbol is ignored (read
1499 as the absolute section symbol), and the "addend" indicates the type
1500 of instruction using the register:
1501 1 - "memory" fmt insn
1502 2 - byte-manipulation (byte offset reg)
1503 3 - jsr (target of branch)
1504
1505 The GNU linker currently doesn't do any of this optimizing. */
1506 BFD_RELOC_ALPHA_LITERAL,
1507 BFD_RELOC_ALPHA_LITUSE,
1508
1509 /* The HINT relocation indicates a value that should be filled into the
1510 "hint" field of a jmp/jsr/ret instruction, for possible branch-
1511 prediction logic which may be provided on some processors. */
1512 BFD_RELOC_ALPHA_HINT,
1513
1514 /* Bits 27..2 of the relocation address shifted right 2 bits;
1515 simple reloc otherwise. */
1516 BFD_RELOC_MIPS_JMP,
1517
1518 /* High 16 bits of 32-bit value; simple reloc. */
1519 BFD_RELOC_HI16,
1520
1521 /* High 16 bits of 32-bit value but the low 16 bits will be sign
1522 extended and added to form the final result. If the low 16
1523 bits form a negative number, we need to add one to the high value
1524 to compensate for the borrow when the low bits are added. */
1525 BFD_RELOC_HI16_S,
1526
1527 /* Low 16 bits. */
1528 BFD_RELOC_LO16,
1529
1530 /* Like BFD_RELOC_HI16_S, but PC relative. */
1531 BFD_RELOC_PCREL_HI16_S,
1532
1533 /* Like BFD_RELOC_LO16, but PC relative. */
1534 BFD_RELOC_PCREL_LO16,
1535
1536 /* Relocation relative to the global pointer. */
1537 #define BFD_RELOC_MIPS_GPREL BFD_RELOC_GPREL16
1538
1539 /* Relocation against a MIPS literal section. */
1540 BFD_RELOC_MIPS_LITERAL,
1541
1542 /* MIPS ELF relocations. */
1543 BFD_RELOC_MIPS_GOT16,
1544 BFD_RELOC_MIPS_CALL16,
1545 #define BFD_RELOC_MIPS_GPREL32 BFD_RELOC_GPREL32
1546
1547 /* i386/elf relocations */
1548 BFD_RELOC_386_GOT32,
1549 BFD_RELOC_386_PLT32,
1550 BFD_RELOC_386_COPY,
1551 BFD_RELOC_386_GLOB_DAT,
1552 BFD_RELOC_386_JUMP_SLOT,
1553 BFD_RELOC_386_RELATIVE,
1554 BFD_RELOC_386_GOTOFF,
1555 BFD_RELOC_386_GOTPC,
1556
1557 /* ns32k relocations */
1558 BFD_RELOC_NS32K_IMM_8,
1559 BFD_RELOC_NS32K_IMM_16,
1560 BFD_RELOC_NS32K_IMM_32,
1561 BFD_RELOC_NS32K_IMM_8_PCREL,
1562 BFD_RELOC_NS32K_IMM_16_PCREL,
1563 BFD_RELOC_NS32K_IMM_32_PCREL,
1564 BFD_RELOC_NS32K_DISP_8,
1565 BFD_RELOC_NS32K_DISP_16,
1566 BFD_RELOC_NS32K_DISP_32,
1567 BFD_RELOC_NS32K_DISP_8_PCREL,
1568 BFD_RELOC_NS32K_DISP_16_PCREL,
1569 BFD_RELOC_NS32K_DISP_32_PCREL,
1570
1571 /* PowerPC/POWER (RS/6000) relocs.
1572 26 bit relative branch. Low two bits must be zero. High 24
1573 bits installed in bits 6 through 29 of instruction. */
1574 BFD_RELOC_PPC_B26,
1575
1576 /* 26 bit absolute branch, like BFD_RELOC_PPC_B26 but absolute. */
1577 BFD_RELOC_PPC_BA26,
1578
1579 /* 16 bit TOC relative reference. */
1580 BFD_RELOC_PPC_TOC16,
1581
1582 /* The type of reloc used to build a contructor table - at the moment
1583 probably a 32 bit wide absolute relocation, but the target can choose.
1584 It generally does map to one of the other relocation types. */
1585 BFD_RELOC_CTOR,
1586
1587 /* ARM 26 bit pc-relative branch. The lowest two bits must be zero and are
1588 not stored in the instruction. */
1589 BFD_RELOC_ARM_PCREL_BRANCH,
1590
1591 /* These relocs are only used within the ARM assembler. They are not
1592 (at present) written to any object files. */
1593 BFD_RELOC_ARM_IMMEDIATE,
1594 BFD_RELOC_ARM_OFFSET_IMM,
1595 BFD_RELOC_ARM_SHIFT_IMM,
1596 BFD_RELOC_ARM_SWI,
1597 BFD_RELOC_ARM_MULTI,
1598 BFD_RELOC_ARM_CP_OFF_IMM,
1599 BFD_RELOC_ARM_ADR_IMM,
1600 BFD_RELOC_ARM_LDR_IMM,
1601 BFD_RELOC_ARM_LITERAL,
1602 BFD_RELOC_ARM_IN_POOL,
1603 /* start-sanitize-arc */
1604
1605 /* Argonaut RISC Core (ARC) relocs.
1606 ARC 22 bit pc-relative branch. The lowest two bits must be zero and are
1607 not stored in the instruction. The high 20 bits are installed in bits 26
1608 through 7 of the instruction. */
1609 BFD_RELOC_ARC_B22_PCREL,
1610
1611 /* ARC 26 bit absolute branch. The lowest two bits must be zero and are not
1612 stored in the instruction. The high 24 bits are installed in bits 23
1613 through 0. */
1614 BFD_RELOC_ARC_B26,
1615 /* end-sanitize-arc */
1616
1617 BFD_RELOC_UNUSED };
1618 typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
1619 reloc_howto_type *
1620
1621 bfd_reloc_type_lookup PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
1622
1623 const char *
1624 bfd_get_reloc_code_name PARAMS ((bfd_reloc_code_real_type code));
1625
1626
1627 typedef struct symbol_cache_entry
1628 {
1629 /* A pointer to the BFD which owns the symbol. This information
1630 is necessary so that a back end can work out what additional
1631 information (invisible to the application writer) is carried
1632 with the symbol.
1633
1634 This field is *almost* redundant, since you can use section->owner
1635 instead, except that some symbols point to the global sections
1636 bfd_{abs,com,und}_section. This could be fixed by making
1637 these globals be per-bfd (or per-target-flavor). FIXME. */
1638
1639 struct _bfd *the_bfd; /* Use bfd_asymbol_bfd(sym) to access this field. */
1640
1641 /* The text of the symbol. The name is left alone, and not copied; the
1642 application may not alter it. */
1643 CONST char *name;
1644
1645 /* The value of the symbol. This really should be a union of a
1646 numeric value with a pointer, since some flags indicate that
1647 a pointer to another symbol is stored here. */
1648 symvalue value;
1649
1650 /* Attributes of a symbol: */
1651
1652 #define BSF_NO_FLAGS 0x00
1653
1654 /* The symbol has local scope; <<static>> in <<C>>. The value
1655 is the offset into the section of the data. */
1656 #define BSF_LOCAL 0x01
1657
1658 /* The symbol has global scope; initialized data in <<C>>. The
1659 value is the offset into the section of the data. */
1660 #define BSF_GLOBAL 0x02
1661
1662 /* The symbol has global scope and is exported. The value is
1663 the offset into the section of the data. */
1664 #define BSF_EXPORT BSF_GLOBAL /* no real difference */
1665
1666 /* A normal C symbol would be one of:
1667 <<BSF_LOCAL>>, <<BSF_FORT_COMM>>, <<BSF_UNDEFINED>> or
1668 <<BSF_GLOBAL>> */
1669
1670 /* The symbol is a debugging record. The value has an arbitary
1671 meaning. */
1672 #define BSF_DEBUGGING 0x08
1673
1674 /* The symbol denotes a function entry point. Used in ELF,
1675 perhaps others someday. */
1676 #define BSF_FUNCTION 0x10
1677
1678 /* Used by the linker. */
1679 #define BSF_KEEP 0x20
1680 #define BSF_KEEP_G 0x40
1681
1682 /* A weak global symbol, overridable without warnings by
1683 a regular global symbol of the same name. */
1684 #define BSF_WEAK 0x80
1685
1686 /* This symbol was created to point to a section, e.g. ELF's
1687 STT_SECTION symbols. */
1688 #define BSF_SECTION_SYM 0x100
1689
1690 /* The symbol used to be a common symbol, but now it is
1691 allocated. */
1692 #define BSF_OLD_COMMON 0x200
1693
1694 /* The default value for common data. */
1695 #define BFD_FORT_COMM_DEFAULT_VALUE 0
1696
1697 /* In some files the type of a symbol sometimes alters its
1698 location in an output file - ie in coff a <<ISFCN>> symbol
1699 which is also <<C_EXT>> symbol appears where it was
1700 declared and not at the end of a section. This bit is set
1701 by the target BFD part to convey this information. */
1702
1703 #define BSF_NOT_AT_END 0x400
1704
1705 /* Signal that the symbol is the label of constructor section. */
1706 #define BSF_CONSTRUCTOR 0x800
1707
1708 /* Signal that the symbol is a warning symbol. If the symbol
1709 is a warning symbol, then the value field (I know this is
1710 tacky) will point to the asymbol which when referenced will
1711 cause the warning. */
1712 #define BSF_WARNING 0x1000
1713
1714 /* Signal that the symbol is indirect. The value of the symbol
1715 is a pointer to an undefined asymbol which contains the
1716 name to use instead. */
1717 #define BSF_INDIRECT 0x2000
1718
1719 /* BSF_FILE marks symbols that contain a file name. This is used
1720 for ELF STT_FILE symbols. */
1721 #define BSF_FILE 0x4000
1722
1723 /* Symbol is from dynamic linking information. */
1724 #define BSF_DYNAMIC 0x8000
1725
1726 flagword flags;
1727
1728 /* A pointer to the section to which this symbol is
1729 relative. This will always be non NULL, there are special
1730 sections for undefined and absolute symbols. */
1731 struct sec *section;
1732
1733 /* Back end special data. */
1734 union
1735 {
1736 PTR p;
1737 bfd_vma i;
1738 } udata;
1739
1740 } asymbol;
1741 #define bfd_get_symtab_upper_bound(abfd) \
1742 BFD_SEND (abfd, _bfd_get_symtab_upper_bound, (abfd))
1743 boolean
1744 bfd_is_local_label PARAMS ((bfd *abfd, asymbol *sym));
1745
1746 #define bfd_is_local_label(abfd, sym) \
1747 BFD_SEND (abfd, _bfd_is_local_label,(abfd, sym))
1748 #define bfd_canonicalize_symtab(abfd, location) \
1749 BFD_SEND (abfd, _bfd_canonicalize_symtab,\
1750 (abfd, location))
1751 boolean
1752 bfd_set_symtab PARAMS ((bfd *abfd, asymbol **location, unsigned int count));
1753
1754 void
1755 bfd_print_symbol_vandf PARAMS ((PTR file, asymbol *symbol));
1756
1757 #define bfd_make_empty_symbol(abfd) \
1758 BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd))
1759 #define bfd_make_debug_symbol(abfd,ptr,size) \
1760 BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size))
1761 int
1762 bfd_decode_symclass PARAMS ((asymbol *symbol));
1763
1764 void
1765 bfd_symbol_info PARAMS ((asymbol *symbol, symbol_info *ret));
1766
1767 boolean
1768 bfd_copy_private_symbol_data PARAMS ((bfd *ibfd, asymbol *isym, bfd *obfd, asymbol *osym));
1769
1770 #define bfd_copy_private_symbol_data(ibfd, isymbol, obfd, osymbol) \
1771 BFD_SEND (ibfd, _bfd_copy_private_symbol_data, \
1772 (ibfd, isymbol, obfd, osymbol))
1773 struct _bfd
1774 {
1775 /* The filename the application opened the BFD with. */
1776 CONST char *filename;
1777
1778 /* A pointer to the target jump table. */
1779 const struct bfd_target *xvec;
1780
1781 /* To avoid dragging too many header files into every file that
1782 includes `<<bfd.h>>', IOSTREAM has been declared as a "char
1783 *", and MTIME as a "long". Their correct types, to which they
1784 are cast when used, are "FILE *" and "time_t". The iostream
1785 is the result of an fopen on the filename. */
1786 char *iostream;
1787
1788 /* Is the file descriptor being cached? That is, can it be closed as
1789 needed, and re-opened when accessed later? */
1790
1791 boolean cacheable;
1792
1793 /* Marks whether there was a default target specified when the
1794 BFD was opened. This is used to select which matching algorithm
1795 to use to choose the back end. */
1796
1797 boolean target_defaulted;
1798
1799 /* The caching routines use these to maintain a
1800 least-recently-used list of BFDs */
1801
1802 struct _bfd *lru_prev, *lru_next;
1803
1804 /* When a file is closed by the caching routines, BFD retains
1805 state information on the file here: */
1806
1807 file_ptr where;
1808
1809 /* and here: (``once'' means at least once) */
1810
1811 boolean opened_once;
1812
1813 /* Set if we have a locally maintained mtime value, rather than
1814 getting it from the file each time: */
1815
1816 boolean mtime_set;
1817
1818 /* File modified time, if mtime_set is true: */
1819
1820 long mtime;
1821
1822 /* Reserved for an unimplemented file locking extension.*/
1823
1824 int ifd;
1825
1826 /* The format which belongs to the BFD. (object, core, etc.) */
1827
1828 bfd_format format;
1829
1830 /* The direction the BFD was opened with*/
1831
1832 enum bfd_direction {no_direction = 0,
1833 read_direction = 1,
1834 write_direction = 2,
1835 both_direction = 3} direction;
1836
1837 /* Format_specific flags*/
1838
1839 flagword flags;
1840
1841 /* Currently my_archive is tested before adding origin to
1842 anything. I believe that this can become always an add of
1843 origin, with origin set to 0 for non archive files. */
1844
1845 file_ptr origin;
1846
1847 /* Remember when output has begun, to stop strange things
1848 from happening. */
1849 boolean output_has_begun;
1850
1851 /* Pointer to linked list of sections*/
1852 struct sec *sections;
1853
1854 /* The number of sections */
1855 unsigned int section_count;
1856
1857 /* Stuff only useful for object files:
1858 The start address. */
1859 bfd_vma start_address;
1860
1861 /* Used for input and output*/
1862 unsigned int symcount;
1863
1864 /* Symbol table for output BFD (with symcount entries) */
1865 struct symbol_cache_entry **outsymbols;
1866
1867 /* Pointer to structure which contains architecture information*/
1868 struct bfd_arch_info *arch_info;
1869
1870 /* Stuff only useful for archives:*/
1871 PTR arelt_data;
1872 struct _bfd *my_archive; /* The containing archive BFD. */
1873 struct _bfd *next; /* The next BFD in the archive. */
1874 struct _bfd *archive_head; /* The first BFD in the archive. */
1875 boolean has_armap;
1876
1877 /* A chain of BFD structures involved in a link. */
1878 struct _bfd *link_next;
1879
1880 /* A field used by _bfd_generic_link_add_archive_symbols. This will
1881 be used only for archive elements. */
1882 int archive_pass;
1883
1884 /* Used by the back end to hold private data. */
1885
1886 union
1887 {
1888 struct aout_data_struct *aout_data;
1889 struct artdata *aout_ar_data;
1890 struct _oasys_data *oasys_obj_data;
1891 struct _oasys_ar_data *oasys_ar_data;
1892 struct coff_tdata *coff_obj_data;
1893 struct ecoff_tdata *ecoff_obj_data;
1894 struct ieee_data_struct *ieee_data;
1895 struct ieee_ar_data_struct *ieee_ar_data;
1896 struct srec_data_struct *srec_data;
1897 struct tekhex_data_struct *tekhex_data;
1898 struct elf_obj_tdata *elf_obj_data;
1899 struct nlm_obj_tdata *nlm_obj_data;
1900 struct bout_data_struct *bout_data;
1901 struct sun_core_struct *sun_core_data;
1902 struct trad_core_struct *trad_core_data;
1903 struct som_data_struct *som_data;
1904 struct hpux_core_struct *hpux_core_data;
1905 struct hppabsd_core_struct *hppabsd_core_data;
1906 struct sgi_core_struct *sgi_core_data;
1907 struct lynx_core_struct *lynx_core_data;
1908 struct osf_core_struct *osf_core_data;
1909 struct cisco_core_struct *cisco_core_data;
1910 struct versados_data_struct *versados_data;
1911 PTR any;
1912 } tdata;
1913
1914 /* Used by the application to hold private data*/
1915 PTR usrdata;
1916
1917 /* Where all the allocated stuff under this BFD goes */
1918 struct obstack memory;
1919 };
1920
1921 typedef enum bfd_error
1922 {
1923 bfd_error_no_error = 0,
1924 bfd_error_system_call,
1925 bfd_error_invalid_target,
1926 bfd_error_wrong_format,
1927 bfd_error_invalid_operation,
1928 bfd_error_no_memory,
1929 bfd_error_no_symbols,
1930 bfd_error_no_armap,
1931 bfd_error_no_more_archived_files,
1932 bfd_error_malformed_archive,
1933 bfd_error_file_not_recognized,
1934 bfd_error_file_ambiguously_recognized,
1935 bfd_error_no_contents,
1936 bfd_error_nonrepresentable_section,
1937 bfd_error_no_debug_section,
1938 bfd_error_bad_value,
1939 bfd_error_file_truncated,
1940 bfd_error_file_too_big,
1941 bfd_error_invalid_error_code
1942 } bfd_error_type;
1943
1944 bfd_error_type
1945 bfd_get_error PARAMS ((void));
1946
1947 void
1948 bfd_set_error PARAMS ((bfd_error_type error_tag));
1949
1950 CONST char *
1951 bfd_errmsg PARAMS ((bfd_error_type error_tag));
1952
1953 void
1954 bfd_perror PARAMS ((CONST char *message));
1955
1956 typedef void (*bfd_error_handler_type) PARAMS ((const char *, ...));
1957
1958 bfd_error_handler_type
1959 bfd_set_error_handler PARAMS ((bfd_error_handler_type));
1960
1961 void
1962 bfd_set_error_program_name PARAMS ((const char *));
1963
1964 long
1965 bfd_get_reloc_upper_bound PARAMS ((bfd *abfd, asection *sect));
1966
1967 long
1968 bfd_canonicalize_reloc
1969 PARAMS ((bfd *abfd,
1970 asection *sec,
1971 arelent **loc,
1972 asymbol **syms));
1973
1974 void
1975 bfd_set_reloc
1976 PARAMS ((bfd *abfd, asection *sec, arelent **rel, unsigned int count)
1977
1978 );
1979
1980 boolean
1981 bfd_set_file_flags PARAMS ((bfd *abfd, flagword flags));
1982
1983 boolean
1984 bfd_set_start_address PARAMS ((bfd *abfd, bfd_vma vma));
1985
1986 long
1987 bfd_get_mtime PARAMS ((bfd *abfd));
1988
1989 long
1990 bfd_get_size PARAMS ((bfd *abfd));
1991
1992 int
1993 bfd_get_gp_size PARAMS ((bfd *abfd));
1994
1995 void
1996 bfd_set_gp_size PARAMS ((bfd *abfd, int i));
1997
1998 bfd_vma
1999 bfd_scan_vma PARAMS ((CONST char *string, CONST char **end, int base));
2000
2001 boolean
2002 bfd_copy_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd));
2003
2004 #define bfd_copy_private_bfd_data(ibfd, obfd) \
2005 BFD_SEND (ibfd, _bfd_copy_private_bfd_data, \
2006 (ibfd, obfd))
2007 boolean
2008 bfd_merge_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd));
2009
2010 #define bfd_merge_private_bfd_data(ibfd, obfd) \
2011 BFD_SEND (ibfd, _bfd_merge_private_bfd_data, \
2012 (ibfd, obfd))
2013 boolean
2014 bfd_set_private_flags PARAMS ((bfd *abfd, flagword flags));
2015
2016 #define bfd_set_private_flags(abfd, flags) \
2017 BFD_SEND (abfd, _bfd_set_private_flags, \
2018 (abfd, flags))
2019 #define bfd_sizeof_headers(abfd, reloc) \
2020 BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc))
2021
2022 #define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
2023 BFD_SEND (abfd, _bfd_find_nearest_line, (abfd, sec, syms, off, file, func, line))
2024
2025 /* Do these three do anything useful at all, for any back end? */
2026 #define bfd_debug_info_start(abfd) \
2027 BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
2028
2029 #define bfd_debug_info_end(abfd) \
2030 BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
2031
2032 #define bfd_debug_info_accumulate(abfd, section) \
2033 BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
2034
2035
2036 #define bfd_stat_arch_elt(abfd, stat) \
2037 BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
2038
2039 #define bfd_update_armap_timestamp(abfd) \
2040 BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))
2041
2042 #define bfd_set_arch_mach(abfd, arch, mach)\
2043 BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
2044
2045 #define bfd_relax_section(abfd, section, link_info, again) \
2046 BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
2047
2048 #define bfd_link_hash_table_create(abfd) \
2049 BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
2050
2051 #define bfd_link_add_symbols(abfd, info) \
2052 BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
2053
2054 #define bfd_final_link(abfd, info) \
2055 BFD_SEND (abfd, _bfd_final_link, (abfd, info))
2056
2057 #define bfd_free_cached_info(abfd) \
2058 BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
2059
2060 #define bfd_get_dynamic_symtab_upper_bound(abfd) \
2061 BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
2062
2063 #define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
2064 BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
2065
2066 #define bfd_get_dynamic_reloc_upper_bound(abfd) \
2067 BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
2068
2069 #define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
2070 BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
2071
2072 extern bfd_byte *bfd_get_relocated_section_contents
2073 PARAMS ((bfd *, struct bfd_link_info *,
2074 struct bfd_link_order *, bfd_byte *,
2075 boolean, asymbol **));
2076
2077 symindex
2078 bfd_get_next_mapent PARAMS ((bfd *abfd, symindex previous, carsym **sym));
2079
2080 boolean
2081 bfd_set_archive_head PARAMS ((bfd *output, bfd *new_head));
2082
2083 bfd *
2084 bfd_get_elt_at_index PARAMS ((bfd *archive, int index));
2085
2086 bfd *
2087 bfd_openr_next_archived_file PARAMS ((bfd *archive, bfd *previous));
2088
2089 CONST char *
2090 bfd_core_file_failing_command PARAMS ((bfd *abfd));
2091
2092 int
2093 bfd_core_file_failing_signal PARAMS ((bfd *abfd));
2094
2095 boolean
2096 core_file_matches_executable_p
2097 PARAMS ((bfd *core_bfd, bfd *exec_bfd));
2098
2099 #define BFD_SEND(bfd, message, arglist) \
2100 ((*((bfd)->xvec->message)) arglist)
2101
2102 #ifdef DEBUG_BFD_SEND
2103 #undef BFD_SEND
2104 #define BFD_SEND(bfd, message, arglist) \
2105 (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
2106 ((*((bfd)->xvec->message)) arglist) : \
2107 (bfd_assert (__FILE__,__LINE__), NULL))
2108 #endif
2109 #define BFD_SEND_FMT(bfd, message, arglist) \
2110 (((bfd)->xvec->message[(int)((bfd)->format)]) arglist)
2111
2112 #ifdef DEBUG_BFD_SEND
2113 #undef BFD_SEND_FMT
2114 #define BFD_SEND_FMT(bfd, message, arglist) \
2115 (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
2116 (((bfd)->xvec->message[(int)((bfd)->format)]) arglist) : \
2117 (bfd_assert (__FILE__,__LINE__), NULL))
2118 #endif
2119 enum bfd_flavour {
2120 bfd_target_unknown_flavour,
2121 bfd_target_aout_flavour,
2122 bfd_target_coff_flavour,
2123 bfd_target_ecoff_flavour,
2124 bfd_target_elf_flavour,
2125 bfd_target_ieee_flavour,
2126 bfd_target_nlm_flavour,
2127 bfd_target_oasys_flavour,
2128 bfd_target_tekhex_flavour,
2129 bfd_target_srec_flavour,
2130 bfd_target_som_flavour,
2131 bfd_target_os9k_flavour,
2132 bfd_target_versados_flavour,
2133 bfd_target_msdos_flavour
2134 };
2135
2136 /* Forward declaration. */
2137 typedef struct bfd_link_info _bfd_link_info;
2138
2139 typedef struct bfd_target
2140 {
2141 char *name;
2142 enum bfd_flavour flavour;
2143 boolean byteorder_big_p;
2144 boolean header_byteorder_big_p;
2145 flagword object_flags;
2146 flagword section_flags;
2147 char symbol_leading_char;
2148 char ar_pad_char;
2149 unsigned short ar_max_namelen;
2150 unsigned int align_power_min;
2151 bfd_vma (*bfd_getx64) PARAMS ((const bfd_byte *));
2152 bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((const bfd_byte *));
2153 void (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *));
2154 bfd_vma (*bfd_getx32) PARAMS ((const bfd_byte *));
2155 bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((const bfd_byte *));
2156 void (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *));
2157 bfd_vma (*bfd_getx16) PARAMS ((const bfd_byte *));
2158 bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((const bfd_byte *));
2159 void (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *));
2160 bfd_vma (*bfd_h_getx64) PARAMS ((const bfd_byte *));
2161 bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((const bfd_byte *));
2162 void (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *));
2163 bfd_vma (*bfd_h_getx32) PARAMS ((const bfd_byte *));
2164 bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((const bfd_byte *));
2165 void (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *));
2166 bfd_vma (*bfd_h_getx16) PARAMS ((const bfd_byte *));
2167 bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((const bfd_byte *));
2168 void (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *));
2169 const struct bfd_target *(*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *));
2170 boolean (*_bfd_set_format[bfd_type_end]) PARAMS ((bfd *));
2171 boolean (*_bfd_write_contents[bfd_type_end]) PARAMS ((bfd *));
2172
2173 /* Generic entry points. */
2174 #define BFD_JUMP_TABLE_GENERIC(NAME)\
2175 CAT(NAME,_close_and_cleanup),\
2176 CAT(NAME,_bfd_free_cached_info),\
2177 CAT(NAME,_new_section_hook),\
2178 CAT(NAME,_get_section_contents)
2179 /* Called when the BFD is being closed to do any necessary cleanup. */
2180 boolean (*_close_and_cleanup) PARAMS ((bfd *));
2181 /* Ask the BFD to free all cached information. */
2182 boolean (*_bfd_free_cached_info) PARAMS ((bfd *));
2183 /* Called when a new section is created. */
2184 boolean (*_new_section_hook) PARAMS ((bfd *, sec_ptr));
2185 /* Read the contents of a section. */
2186 boolean (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
2187 file_ptr, bfd_size_type));
2188
2189 /* Entry points to copy private data. */
2190 #define BFD_JUMP_TABLE_COPY(NAME)\
2191 CAT(NAME,_bfd_copy_private_bfd_data),\
2192 CAT(NAME,_bfd_merge_private_bfd_data),\
2193 CAT(NAME,_bfd_copy_private_section_data),\
2194 CAT(NAME,_bfd_copy_private_symbol_data),\
2195 CAT(NAME,_bfd_set_private_flags)
2196 /* Called to copy BFD general private data from one object file
2197 to another. */
2198 boolean (*_bfd_copy_private_bfd_data) PARAMS ((bfd *, bfd *));
2199 /* Called to merge BFD general private data from one object file
2200 to a common output file when linking. */
2201 boolean (*_bfd_merge_private_bfd_data) PARAMS ((bfd *, bfd *));
2202 /* Called to copy BFD private section data from one object file
2203 to another. */
2204 boolean (*_bfd_copy_private_section_data) PARAMS ((bfd *, sec_ptr,
2205 bfd *, sec_ptr));
2206 /* Called to copy BFD private symbol data from one symbol
2207 to another. */
2208 boolean (*_bfd_copy_private_symbol_data) PARAMS ((bfd *, asymbol *,
2209 bfd *, asymbol *));
2210 /* Called to set private backend flags */
2211 boolean (*_bfd_set_private_flags) PARAMS ((bfd *, flagword));
2212
2213 /* Core file entry points. */
2214 #define BFD_JUMP_TABLE_CORE(NAME)\
2215 CAT(NAME,_core_file_failing_command),\
2216 CAT(NAME,_core_file_failing_signal),\
2217 CAT(NAME,_core_file_matches_executable_p)
2218 char * (*_core_file_failing_command) PARAMS ((bfd *));
2219 int (*_core_file_failing_signal) PARAMS ((bfd *));
2220 boolean (*_core_file_matches_executable_p) PARAMS ((bfd *, bfd *));
2221
2222 /* Archive entry points. */
2223 #define BFD_JUMP_TABLE_ARCHIVE(NAME)\
2224 CAT(NAME,_slurp_armap),\
2225 CAT(NAME,_slurp_extended_name_table),\
2226 CAT(NAME,_construct_extended_name_table),\
2227 CAT(NAME,_truncate_arname),\
2228 CAT(NAME,_write_armap),\
2229 CAT(NAME,_openr_next_archived_file),\
2230 CAT(NAME,_generic_stat_arch_elt),\
2231 CAT(NAME,_update_armap_timestamp)
2232 boolean (*_bfd_slurp_armap) PARAMS ((bfd *));
2233 boolean (*_bfd_slurp_extended_name_table) PARAMS ((bfd *));
2234 boolean (*_bfd_construct_extended_name_table)
2235 PARAMS ((bfd *, char **, bfd_size_type *, const char **));
2236 void (*_bfd_truncate_arname) PARAMS ((bfd *, CONST char *, char *));
2237 boolean (*write_armap) PARAMS ((bfd *arch,
2238 unsigned int elength,
2239 struct orl *map,
2240 unsigned int orl_count,
2241 int stridx));
2242 bfd * (*openr_next_archived_file) PARAMS ((bfd *arch, bfd *prev));
2243 int (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *));
2244 boolean (*_bfd_update_armap_timestamp) PARAMS ((bfd *));
2245
2246 /* Entry points used for symbols. */
2247 #define BFD_JUMP_TABLE_SYMBOLS(NAME)\
2248 CAT(NAME,_get_symtab_upper_bound),\
2249 CAT(NAME,_get_symtab),\
2250 CAT(NAME,_make_empty_symbol),\
2251 CAT(NAME,_print_symbol),\
2252 CAT(NAME,_get_symbol_info),\
2253 CAT(NAME,_bfd_is_local_label),\
2254 CAT(NAME,_get_lineno),\
2255 CAT(NAME,_find_nearest_line),\
2256 CAT(NAME,_bfd_make_debug_symbol)
2257 long (*_bfd_get_symtab_upper_bound) PARAMS ((bfd *));
2258 long (*_bfd_canonicalize_symtab) PARAMS ((bfd *,
2259 struct symbol_cache_entry **));
2260 struct symbol_cache_entry *
2261 (*_bfd_make_empty_symbol) PARAMS ((bfd *));
2262 void (*_bfd_print_symbol) PARAMS ((bfd *, PTR,
2263 struct symbol_cache_entry *,
2264 bfd_print_symbol_type));
2265 #define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e))
2266 void (*_bfd_get_symbol_info) PARAMS ((bfd *,
2267 struct symbol_cache_entry *,
2268 symbol_info *));
2269 #define bfd_get_symbol_info(b,p,e) BFD_SEND(b, _bfd_get_symbol_info, (b,p,e))
2270 boolean (*_bfd_is_local_label) PARAMS ((bfd *, asymbol *));
2271
2272 alent * (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *));
2273 boolean (*_bfd_find_nearest_line) PARAMS ((bfd *abfd,
2274 struct sec *section, struct symbol_cache_entry **symbols,
2275 bfd_vma offset, CONST char **file, CONST char **func,
2276 unsigned int *line));
2277 /* Back-door to allow format-aware applications to create debug symbols
2278 while using BFD for everything else. Currently used by the assembler
2279 when creating COFF files. */
2280 asymbol * (*_bfd_make_debug_symbol) PARAMS ((
2281 bfd *abfd,
2282 void *ptr,
2283 unsigned long size));
2284
2285 /* Routines for relocs. */
2286 #define BFD_JUMP_TABLE_RELOCS(NAME)\
2287 CAT(NAME,_get_reloc_upper_bound),\
2288 CAT(NAME,_canonicalize_reloc),\
2289 CAT(NAME,_bfd_reloc_type_lookup)
2290 long (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr));
2291 long (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **,
2292 struct symbol_cache_entry **));
2293 /* See documentation on reloc types. */
2294 reloc_howto_type *
2295 (*reloc_type_lookup) PARAMS ((bfd *abfd,
2296 bfd_reloc_code_real_type code));
2297
2298 /* Routines used when writing an object file. */
2299 #define BFD_JUMP_TABLE_WRITE(NAME)\
2300 CAT(NAME,_set_arch_mach),\
2301 CAT(NAME,_set_section_contents)
2302 boolean (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture,
2303 unsigned long));
2304 boolean (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
2305 file_ptr, bfd_size_type));
2306
2307 /* Routines used by the linker. */
2308 #define BFD_JUMP_TABLE_LINK(NAME)\
2309 CAT(NAME,_sizeof_headers),\
2310 CAT(NAME,_bfd_get_relocated_section_contents),\
2311 CAT(NAME,_bfd_relax_section),\
2312 CAT(NAME,_bfd_link_hash_table_create),\
2313 CAT(NAME,_bfd_link_add_symbols),\
2314 CAT(NAME,_bfd_final_link),\
2315 CAT(NAME,_bfd_link_split_section)
2316 int (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean));
2317 bfd_byte * (*_bfd_get_relocated_section_contents) PARAMS ((bfd *,
2318 struct bfd_link_info *, struct bfd_link_order *,
2319 bfd_byte *data, boolean relocateable,
2320 struct symbol_cache_entry **));
2321
2322 boolean (*_bfd_relax_section) PARAMS ((bfd *, struct sec *,
2323 struct bfd_link_info *, boolean *again));
2324
2325 /* Create a hash table for the linker. Different backends store
2326 different information in this table. */
2327 struct bfd_link_hash_table *(*_bfd_link_hash_table_create) PARAMS ((bfd *));
2328
2329 /* Add symbols from this object file into the hash table. */
2330 boolean (*_bfd_link_add_symbols) PARAMS ((bfd *, struct bfd_link_info *));
2331
2332 /* Do a link based on the link_order structures attached to each
2333 section of the BFD. */
2334 boolean (*_bfd_final_link) PARAMS ((bfd *, struct bfd_link_info *));
2335
2336 /* Should this section be split up into smaller pieces during linking. */
2337 boolean (*_bfd_link_split_section) PARAMS ((bfd *, struct sec *));
2338
2339 /* Routines to handle dynamic symbols and relocs. */
2340 #define BFD_JUMP_TABLE_DYNAMIC(NAME)\
2341 CAT(NAME,_get_dynamic_symtab_upper_bound),\
2342 CAT(NAME,_canonicalize_dynamic_symtab),\
2343 CAT(NAME,_get_dynamic_reloc_upper_bound),\
2344 CAT(NAME,_canonicalize_dynamic_reloc)
2345 /* Get the amount of memory required to hold the dynamic symbols. */
2346 long (*_bfd_get_dynamic_symtab_upper_bound) PARAMS ((bfd *));
2347 /* Read in the dynamic symbols. */
2348 long (*_bfd_canonicalize_dynamic_symtab)
2349 PARAMS ((bfd *, struct symbol_cache_entry **));
2350 /* Get the amount of memory required to hold the dynamic relocs. */
2351 long (*_bfd_get_dynamic_reloc_upper_bound) PARAMS ((bfd *));
2352 /* Read in the dynamic relocs. */
2353 long (*_bfd_canonicalize_dynamic_reloc)
2354 PARAMS ((bfd *, arelent **, struct symbol_cache_entry **));
2355
2356 PTR backend_data;
2357 } bfd_target;
2358 const bfd_target *
2359 bfd_find_target PARAMS ((CONST char *target_name, bfd *abfd));
2360
2361 const char **
2362 bfd_target_list PARAMS ((void));
2363
2364 boolean
2365 bfd_check_format PARAMS ((bfd *abfd, bfd_format format));
2366
2367 boolean
2368 bfd_check_format_matches PARAMS ((bfd *abfd, bfd_format format, char ***matching));
2369
2370 boolean
2371 bfd_set_format PARAMS ((bfd *abfd, bfd_format format));
2372
2373 CONST char *
2374 bfd_format_string PARAMS ((bfd_format format));
2375
2376 #endif