* bfd-in.h (struct bfd_link_needed_list): Rename from
[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, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 #ifdef __cplusplus
48 extern "C" {
49 #endif
50
51 #include "ansidecl.h"
52 #include "obstack.h"
53
54 /* These two lines get substitutions done by commands in Makefile.in. */
55 #define BFD_VERSION "@VERSION@"
56 #define BFD_ARCH_SIZE @WORDSIZE@
57 #define BFD_HOST_64BIT_LONG @BFD_HOST_64BIT_LONG@
58
59 #if BFD_ARCH_SIZE >= 64
60 #define BFD64
61 #endif
62
63 #ifndef INLINE
64 #if __GNUC__ >= 2
65 #define INLINE __inline__
66 #else
67 #define INLINE
68 #endif
69 #endif
70
71 /* forward declaration */
72 typedef struct _bfd bfd;
73
74 /* To squelch erroneous compiler warnings ("illegal pointer
75 combination") from the SVR3 compiler, we would like to typedef
76 boolean to int (it doesn't like functions which return boolean.
77 Making sure they are never implicitly declared to return int
78 doesn't seem to help). But this file is not configured based on
79 the host. */
80 /* General rules: functions which are boolean return true on success
81 and false on failure (unless they're a predicate). -- bfd.doc */
82 /* I'm sure this is going to break something and someone is going to
83 force me to change it. */
84 /* typedef enum boolean {false, true} boolean; */
85 /* Yup, SVR4 has a "typedef enum boolean" in <sys/types.h> -fnf */
86 /* It gets worse if the host also defines a true/false enum... -sts */
87 /* And even worse if your compiler has built-in boolean types... -law */
88 #if defined (__GNUG__) && (__GNUC_MINOR__ > 5)
89 #define TRUE_FALSE_ALREADY_DEFINED
90 #endif
91 #ifdef MPW
92 /* Pre-emptive strike - get the file with the enum. */
93 #include <Types.h>
94 #define TRUE_FALSE_ALREADY_DEFINED
95 #endif /* MPW */
96 #ifndef TRUE_FALSE_ALREADY_DEFINED
97 typedef enum bfd_boolean {false, true} boolean;
98 #define BFD_TRUE_FALSE
99 #else
100 /* Use enum names that will appear nowhere else. */
101 typedef enum bfd_boolean {bfd_fffalse, bfd_tttrue} boolean;
102 #endif
103
104 /* A pointer to a position in a file. */
105 /* FIXME: This should be using off_t from <sys/types.h>.
106 For now, try to avoid breaking stuff by not including <sys/types.h> here.
107 This will break on systems with 64-bit file offsets (e.g. 4.4BSD).
108 Probably the best long-term answer is to avoid using file_ptr AND off_t
109 in this header file, and to handle this in the BFD implementation
110 rather than in its interface. */
111 /* typedef off_t file_ptr; */
112 typedef long int file_ptr;
113
114 /* Support for different sizes of target format ints and addresses.
115 If the type `long' is at least 64 bits, BFD_HOST_64BIT_LONG will be
116 set to 1 above. Otherwise, if gcc is being used, this code will
117 use gcc's "long long" type. Otherwise, the compilation will fail
118 if 64-bit targets are requested. */
119
120 #ifdef BFD64
121
122 #ifndef BFD_HOST_64_BIT
123 #if BFD_HOST_64BIT_LONG
124 #define BFD_HOST_64_BIT long
125 #else
126 #ifdef __GNUC__
127 #define BFD_HOST_64_BIT long long
128 #endif /* defined (__GNUC__) */
129 #endif /* ! BFD_HOST_64BIT_LONG */
130 #endif /* ! defined (BFD_HOST_64_BIT) */
131
132 typedef unsigned BFD_HOST_64_BIT bfd_vma;
133 typedef BFD_HOST_64_BIT bfd_signed_vma;
134 typedef unsigned BFD_HOST_64_BIT bfd_size_type;
135 typedef unsigned BFD_HOST_64_BIT symvalue;
136
137 #ifndef fprintf_vma
138 #if BFD_HOST_64BIT_LONG
139 #define sprintf_vma(s,x) sprintf (s, "%016lx", x)
140 #define fprintf_vma(f,x) fprintf (f, "%016lx", x)
141 #else
142 #define _bfd_int64_low(x) ((unsigned long) (((x) & 0xffffffff)))
143 #define _bfd_int64_high(x) ((unsigned long) (((x) >> 32) & 0xffffffff))
144 #define fprintf_vma(s,x) \
145 fprintf ((s), "%08lx%08lx", _bfd_int64_high (x), _bfd_int64_low (x))
146 #define sprintf_vma(s,x) \
147 sprintf ((s), "%08lx%08lx", _bfd_int64_high (x), _bfd_int64_low (x))
148 #endif
149 #endif
150
151 #else /* not BFD64 */
152
153 /* Represent a target address. Also used as a generic unsigned type
154 which is guaranteed to be big enough to hold any arithmetic types
155 we need to deal with. */
156 typedef unsigned long bfd_vma;
157
158 /* A generic signed type which is guaranteed to be big enough to hold any
159 arithmetic types we need to deal with. Can be assumed to be compatible
160 with bfd_vma in the same way that signed and unsigned ints are compatible
161 (as parameters, in assignment, etc). */
162 typedef long bfd_signed_vma;
163
164 typedef unsigned long symvalue;
165 typedef unsigned long bfd_size_type;
166
167 /* Print a bfd_vma x on stream s. */
168 #define fprintf_vma(s,x) fprintf(s, "%08lx", x)
169 #define sprintf_vma(s,x) sprintf(s, "%08lx", x)
170 #endif /* not BFD64 */
171 #define printf_vma(x) fprintf_vma(stdout,x)
172
173 typedef unsigned int flagword; /* 32 bits of flags */
174 typedef unsigned char bfd_byte;
175 \f
176 /** File formats */
177
178 typedef enum bfd_format {
179 bfd_unknown = 0, /* file format is unknown */
180 bfd_object, /* linker/assember/compiler output */
181 bfd_archive, /* object archive file */
182 bfd_core, /* core dump */
183 bfd_type_end} /* marks the end; don't use it! */
184 bfd_format;
185
186 /* Values that may appear in the flags field of a BFD. These also
187 appear in the object_flags field of the bfd_target structure, where
188 they indicate the set of flags used by that backend (not all flags
189 are meaningful for all object file formats) (FIXME: at the moment,
190 the object_flags values have mostly just been copied from backend
191 to another, and are not necessarily correct). */
192
193 /* No flags. */
194 #define NO_FLAGS 0x00
195
196 /* BFD contains relocation entries. */
197 #define HAS_RELOC 0x01
198
199 /* BFD is directly executable. */
200 #define EXEC_P 0x02
201
202 /* BFD has line number information (basically used for F_LNNO in a
203 COFF header). */
204 #define HAS_LINENO 0x04
205
206 /* BFD has debugging information. */
207 #define HAS_DEBUG 0x08
208
209 /* BFD has symbols. */
210 #define HAS_SYMS 0x10
211
212 /* BFD has local symbols (basically used for F_LSYMS in a COFF
213 header). */
214 #define HAS_LOCALS 0x20
215
216 /* BFD is a dynamic object. */
217 #define DYNAMIC 0x40
218
219 /* Text section is write protected (if D_PAGED is not set, this is
220 like an a.out NMAGIC file) (the linker sets this by default, but
221 clears it for -r or -N). */
222 #define WP_TEXT 0x80
223
224 /* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the
225 linker sets this by default, but clears it for -r or -n or -N). */
226 #define D_PAGED 0x100
227
228 /* BFD is relaxable (this means that bfd_relax_section may be able to
229 do something) (sometimes bfd_relax_section can do something even if
230 this is not set). */
231 #define BFD_IS_RELAXABLE 0x200
232
233 /* This may be set before writing out a BFD to request using a
234 traditional format. For example, this is used to request that when
235 writing out an a.out object the symbols not be hashed to eliminate
236 duplicates. */
237 #define BFD_TRADITIONAL_FORMAT 0x400
238 \f
239 /* symbols and relocation */
240
241 /* A count of carsyms (canonical archive symbols). */
242 typedef unsigned long symindex;
243
244 /* How to perform a relocation. */
245 typedef const struct reloc_howto_struct reloc_howto_type;
246
247 #define BFD_NO_MORE_SYMBOLS ((symindex) ~0)
248
249 /* General purpose part of a symbol X;
250 target specific parts are in libcoff.h, libaout.h, etc. */
251
252 #define bfd_get_section(x) ((x)->section)
253 #define bfd_get_output_section(x) ((x)->section->output_section)
254 #define bfd_set_section(x,y) ((x)->section) = (y)
255 #define bfd_asymbol_base(x) ((x)->section->vma)
256 #define bfd_asymbol_value(x) (bfd_asymbol_base(x) + (x)->value)
257 #define bfd_asymbol_name(x) ((x)->name)
258 /*Perhaps future: #define bfd_asymbol_bfd(x) ((x)->section->owner)*/
259 #define bfd_asymbol_bfd(x) ((x)->the_bfd)
260 #define bfd_asymbol_flavour(x) (bfd_asymbol_bfd(x)->xvec->flavour)
261
262 /* A canonical archive symbol. */
263 /* This is a type pun with struct ranlib on purpose! */
264 typedef struct carsym {
265 char *name;
266 file_ptr file_offset; /* look here to find the file */
267 } carsym; /* to make these you call a carsymogen */
268
269
270 /* Used in generating armaps (archive tables of contents).
271 Perhaps just a forward definition would do? */
272 struct orl { /* output ranlib */
273 char **name; /* symbol name */
274 file_ptr pos; /* bfd* or file position */
275 int namidx; /* index into string table */
276 };
277 \f
278
279 /* Linenumber stuff */
280 typedef struct lineno_cache_entry {
281 unsigned int line_number; /* Linenumber from start of function*/
282 union {
283 struct symbol_cache_entry *sym; /* Function name */
284 unsigned long offset; /* Offset into section */
285 } u;
286 } alent;
287 \f
288 /* object and core file sections */
289
290 #define align_power(addr, align) \
291 ( ((addr) + ((1<<(align))-1)) & (-1 << (align)))
292
293 typedef struct sec *sec_ptr;
294
295 #define bfd_get_section_name(bfd, ptr) ((ptr)->name + 0)
296 #define bfd_get_section_vma(bfd, ptr) ((ptr)->vma + 0)
297 #define bfd_get_section_alignment(bfd, ptr) ((ptr)->alignment_power + 0)
298 #define bfd_section_name(bfd, ptr) ((ptr)->name)
299 #define bfd_section_size(bfd, ptr) (bfd_get_section_size_before_reloc(ptr))
300 #define bfd_section_vma(bfd, ptr) ((ptr)->vma)
301 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power)
302 #define bfd_get_section_flags(bfd, ptr) ((ptr)->flags + 0)
303 #define bfd_get_section_userdata(bfd, ptr) ((ptr)->userdata)
304
305 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0)
306
307 #define bfd_set_section_vma(bfd, ptr, val) (((ptr)->vma = (ptr)->lma= (val)), ((ptr)->user_set_vma = (boolean)true), true)
308 #define bfd_set_section_alignment(bfd, ptr, val) (((ptr)->alignment_power = (val)),true)
309 #define bfd_set_section_userdata(bfd, ptr, val) (((ptr)->userdata = (val)),true)
310
311 typedef struct stat stat_type;
312 \f
313 typedef enum bfd_print_symbol
314 {
315 bfd_print_symbol_name,
316 bfd_print_symbol_more,
317 bfd_print_symbol_all
318 } bfd_print_symbol_type;
319
320 /* Information about a symbol that nm needs. */
321
322 typedef struct _symbol_info
323 {
324 symvalue value;
325 char type;
326 CONST char *name; /* Symbol name. */
327 char stab_other; /* Unused. */
328 short stab_desc; /* Info for N_TYPE. */
329 CONST char *stab_name;
330 } symbol_info;
331 \f
332 /* Hash table routines. There is no way to free up a hash table. */
333
334 /* An element in the hash table. Most uses will actually use a larger
335 structure, and an instance of this will be the first field. */
336
337 struct bfd_hash_entry
338 {
339 /* Next entry for this hash code. */
340 struct bfd_hash_entry *next;
341 /* String being hashed. */
342 const char *string;
343 /* Hash code. This is the full hash code, not the index into the
344 table. */
345 unsigned long hash;
346 };
347
348 /* A hash table. */
349
350 struct bfd_hash_table
351 {
352 /* The hash array. */
353 struct bfd_hash_entry **table;
354 /* The number of slots in the hash table. */
355 unsigned int size;
356 /* A function used to create new elements in the hash table. The
357 first entry is itself a pointer to an element. When this
358 function is first invoked, this pointer will be NULL. However,
359 having the pointer permits a hierarchy of method functions to be
360 built each of which calls the function in the superclass. Thus
361 each function should be written to allocate a new block of memory
362 only if the argument is NULL. */
363 struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
364 struct bfd_hash_table *,
365 const char *));
366 /* An obstack for this hash table. */
367 struct obstack memory;
368 };
369
370 /* Initialize a hash table. */
371 extern boolean bfd_hash_table_init
372 PARAMS ((struct bfd_hash_table *,
373 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
374 struct bfd_hash_table *,
375 const char *)));
376
377 /* Initialize a hash table specifying a size. */
378 extern boolean bfd_hash_table_init_n
379 PARAMS ((struct bfd_hash_table *,
380 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
381 struct bfd_hash_table *,
382 const char *),
383 unsigned int size));
384
385 /* Free up a hash table. */
386 extern void bfd_hash_table_free PARAMS ((struct bfd_hash_table *));
387
388 /* Look up a string in a hash table. If CREATE is true, a new entry
389 will be created for this string if one does not already exist. The
390 COPY argument must be true if this routine should copy the string
391 into newly allocated memory when adding an entry. */
392 extern struct bfd_hash_entry *bfd_hash_lookup
393 PARAMS ((struct bfd_hash_table *, const char *, boolean create,
394 boolean copy));
395
396 /* Replace an entry in a hash table. */
397 extern void bfd_hash_replace
398 PARAMS ((struct bfd_hash_table *, struct bfd_hash_entry *old,
399 struct bfd_hash_entry *nw));
400
401 /* Base method for creating a hash table entry. */
402 extern struct bfd_hash_entry *bfd_hash_newfunc
403 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *,
404 const char *));
405
406 /* Grab some space for a hash table entry. */
407 extern PTR bfd_hash_allocate PARAMS ((struct bfd_hash_table *,
408 unsigned int));
409
410 /* Traverse a hash table in a random order, calling a function on each
411 element. If the function returns false, the traversal stops. The
412 INFO argument is passed to the function. */
413 extern void bfd_hash_traverse PARAMS ((struct bfd_hash_table *,
414 boolean (*) (struct bfd_hash_entry *,
415 PTR),
416 PTR info));
417 \f
418 /* Semi-portable string concatenation in cpp.
419 The CAT4 hack is to avoid a problem with some strict ANSI C preprocessors.
420 The problem is, "32_" is not a valid preprocessing token, and we don't
421 want extra underscores (e.g., "nlm_32_"). The XCAT2 macro will cause the
422 inner CAT macros to be evaluated first, producing still-valid pp-tokens.
423 Then the final concatenation can be done. (Sigh.) */
424 #ifndef CAT
425 #ifdef SABER
426 #define CAT(a,b) a##b
427 #define CAT3(a,b,c) a##b##c
428 #define CAT4(a,b,c,d) a##b##c##d
429 #else
430 #if defined(__STDC__) || defined(ALMOST_STDC)
431 #define CAT(a,b) a##b
432 #define CAT3(a,b,c) a##b##c
433 #define XCAT2(a,b) CAT(a,b)
434 #define CAT4(a,b,c,d) XCAT2(CAT(a,b),CAT(c,d))
435 #else
436 #define CAT(a,b) a/**/b
437 #define CAT3(a,b,c) a/**/b/**/c
438 #define CAT4(a,b,c,d) a/**/b/**/c/**/d
439 #endif
440 #endif
441 #endif
442
443 #define COFF_SWAP_TABLE (PTR) &bfd_coff_std_swap_table
444 \f
445 /* User program access to BFD facilities */
446
447 /* Direct I/O routines, for programs which know more about the object
448 file than BFD does. Use higher level routines if possible. */
449
450 extern bfd_size_type bfd_read
451 PARAMS ((PTR, bfd_size_type size, bfd_size_type nitems, bfd *abfd));
452 extern bfd_size_type bfd_write
453 PARAMS ((const PTR, bfd_size_type size, bfd_size_type nitems, bfd *abfd));
454 extern int bfd_seek PARAMS ((bfd *abfd, file_ptr fp, int direction));
455 extern long bfd_tell PARAMS ((bfd *abfd));
456 extern int bfd_flush PARAMS ((bfd *abfd));
457 extern int bfd_stat PARAMS ((bfd *abfd, struct stat *));
458
459
460 /* Cast from const char * to char * so that caller can assign to
461 a char * without a warning. */
462 #define bfd_get_filename(abfd) ((char *) (abfd)->filename)
463 #define bfd_get_cacheable(abfd) ((abfd)->cacheable)
464 #define bfd_get_format(abfd) ((abfd)->format)
465 #define bfd_get_target(abfd) ((abfd)->xvec->name)
466 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour)
467 #define bfd_get_file_flags(abfd) ((abfd)->flags)
468 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
469 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
470 #define bfd_my_archive(abfd) ((abfd)->my_archive)
471 #define bfd_has_map(abfd) ((abfd)->has_armap)
472
473 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
474 #define bfd_usrdata(abfd) ((abfd)->usrdata)
475
476 #define bfd_get_start_address(abfd) ((abfd)->start_address)
477 #define bfd_get_symcount(abfd) ((abfd)->symcount)
478 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
479 #define bfd_count_sections(abfd) ((abfd)->section_count)
480
481 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
482
483 #define bfd_set_cacheable(abfd,bool) (((abfd)->cacheable = (boolean)(bool)), true)
484
485 /* Byte swapping routines. */
486
487 bfd_vma bfd_getb64 PARAMS ((const unsigned char *));
488 bfd_vma bfd_getl64 PARAMS ((const unsigned char *));
489 bfd_signed_vma bfd_getb_signed_64 PARAMS ((const unsigned char *));
490 bfd_signed_vma bfd_getl_signed_64 PARAMS ((const unsigned char *));
491 bfd_vma bfd_getb32 PARAMS ((const unsigned char *));
492 bfd_vma bfd_getl32 PARAMS ((const unsigned char *));
493 bfd_signed_vma bfd_getb_signed_32 PARAMS ((const unsigned char *));
494 bfd_signed_vma bfd_getl_signed_32 PARAMS ((const unsigned char *));
495 bfd_vma bfd_getb16 PARAMS ((const unsigned char *));
496 bfd_vma bfd_getl16 PARAMS ((const unsigned char *));
497 bfd_signed_vma bfd_getb_signed_16 PARAMS ((const unsigned char *));
498 bfd_signed_vma bfd_getl_signed_16 PARAMS ((const unsigned char *));
499 void bfd_putb64 PARAMS ((bfd_vma, unsigned char *));
500 void bfd_putl64 PARAMS ((bfd_vma, unsigned char *));
501 void bfd_putb32 PARAMS ((bfd_vma, unsigned char *));
502 void bfd_putl32 PARAMS ((bfd_vma, unsigned char *));
503 void bfd_putb16 PARAMS ((bfd_vma, unsigned char *));
504 void bfd_putl16 PARAMS ((bfd_vma, unsigned char *));
505 \f
506 /* Externally visible ECOFF routines. */
507
508 #if defined(__STDC__) || defined(ALMOST_STDC)
509 struct ecoff_debug_info;
510 struct ecoff_debug_swap;
511 struct ecoff_extr;
512 struct symbol_cache_entry;
513 struct bfd_link_info;
514 #endif
515 extern bfd_vma bfd_ecoff_get_gp_value PARAMS ((bfd * abfd));
516 extern boolean bfd_ecoff_set_gp_value PARAMS ((bfd *abfd, bfd_vma gp_value));
517 extern boolean bfd_ecoff_set_regmasks
518 PARAMS ((bfd *abfd, unsigned long gprmask, unsigned long fprmask,
519 unsigned long *cprmask));
520 extern PTR bfd_ecoff_debug_init
521 PARAMS ((bfd *output_bfd, struct ecoff_debug_info *output_debug,
522 const struct ecoff_debug_swap *output_swap,
523 struct bfd_link_info *));
524 extern void bfd_ecoff_debug_free
525 PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
526 const struct ecoff_debug_swap *output_swap,
527 struct bfd_link_info *));
528 extern boolean bfd_ecoff_debug_accumulate
529 PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
530 const struct ecoff_debug_swap *output_swap,
531 bfd *input_bfd, struct ecoff_debug_info *input_debug,
532 const struct ecoff_debug_swap *input_swap,
533 struct bfd_link_info *));
534 extern boolean bfd_ecoff_debug_accumulate_other
535 PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
536 const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
537 struct bfd_link_info *));
538 extern boolean bfd_ecoff_debug_externals
539 PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
540 const struct ecoff_debug_swap *swap,
541 boolean relocateable,
542 boolean (*get_extr) (struct symbol_cache_entry *,
543 struct ecoff_extr *),
544 void (*set_index) (struct symbol_cache_entry *,
545 bfd_size_type)));
546 extern boolean bfd_ecoff_debug_one_external
547 PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
548 const struct ecoff_debug_swap *swap,
549 const char *name, struct ecoff_extr *esym));
550 extern bfd_size_type bfd_ecoff_debug_size
551 PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
552 const struct ecoff_debug_swap *swap));
553 extern boolean bfd_ecoff_write_debug
554 PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
555 const struct ecoff_debug_swap *swap, file_ptr where));
556 extern boolean bfd_ecoff_write_accumulated_debug
557 PARAMS ((PTR handle, bfd *abfd, struct ecoff_debug_info *debug,
558 const struct ecoff_debug_swap *swap,
559 struct bfd_link_info *info, file_ptr where));
560 extern boolean bfd_mips_ecoff_create_embedded_relocs
561 PARAMS ((bfd *, struct bfd_link_info *, struct sec *, struct sec *,
562 char **));
563
564 /* Externally visible ELF routines. */
565
566 struct bfd_link_needed_list
567 {
568 struct bfd_link_needed_list *next;
569 bfd *by;
570 const char *name;
571 };
572
573 extern boolean bfd_elf32_record_link_assignment
574 PARAMS ((bfd *, struct bfd_link_info *, const char *, boolean));
575 extern boolean bfd_elf64_record_link_assignment
576 PARAMS ((bfd *, struct bfd_link_info *, const char *, boolean));
577 extern struct bfd_link_needed_list *bfd_elf_get_needed_list
578 PARAMS ((bfd *, struct bfd_link_info *));
579 extern boolean bfd_elf32_size_dynamic_sections
580 PARAMS ((bfd *, const char *, const char *, boolean,
581 struct bfd_link_info *, struct sec **));
582 extern boolean bfd_elf64_size_dynamic_sections
583 PARAMS ((bfd *, const char *, const char *, boolean,
584 struct bfd_link_info *, struct sec **));
585 extern void bfd_elf_set_dt_needed_name PARAMS ((bfd *, const char *));
586
587 /* SunOS shared library support routines for the linker. */
588
589 extern boolean bfd_sunos_record_link_assignment
590 PARAMS ((bfd *, struct bfd_link_info *, const char *));
591 extern boolean bfd_sunos_size_dynamic_sections
592 PARAMS ((bfd *, struct bfd_link_info *, struct sec **, struct sec **,
593 struct sec **));
594
595 /* Linux shared library support routines for the linker. */
596
597 extern boolean bfd_linux_size_dynamic_sections
598 PARAMS ((bfd *, struct bfd_link_info *));
599
600 /* And more from the source. */
601 void
602 bfd_init PARAMS ((void));
603
604 bfd *
605 bfd_openr PARAMS ((CONST char *filename, CONST char *target));
606
607 bfd *
608 bfd_fdopenr PARAMS ((CONST char *filename, CONST char *target, int fd));
609
610 bfd *
611 bfd_openstreamr PARAMS (());
612
613 bfd *
614 bfd_openw PARAMS ((CONST char *filename, CONST char *target));
615
616 boolean
617 bfd_close PARAMS ((bfd *abfd));
618
619 boolean
620 bfd_close_all_done PARAMS ((bfd *));
621
622 bfd_size_type
623 bfd_alloc_size PARAMS ((bfd *abfd));
624
625 bfd *
626 bfd_create PARAMS ((CONST char *filename, bfd *templ));
627
628
629 /* Byte swapping macros for user section data. */
630
631 #define bfd_put_8(abfd, val, ptr) \
632 (*((unsigned char *)(ptr)) = (unsigned char)(val))
633 #define bfd_put_signed_8 \
634 bfd_put_8
635 #define bfd_get_8(abfd, ptr) \
636 (*(unsigned char *)(ptr))
637 #define bfd_get_signed_8(abfd, ptr) \
638 ((*(unsigned char *)(ptr) ^ 0x80) - 0x80)
639
640 #define bfd_put_16(abfd, val, ptr) \
641 BFD_SEND(abfd, bfd_putx16, ((val),(ptr)))
642 #define bfd_put_signed_16 \
643 bfd_put_16
644 #define bfd_get_16(abfd, ptr) \
645 BFD_SEND(abfd, bfd_getx16, (ptr))
646 #define bfd_get_signed_16(abfd, ptr) \
647 BFD_SEND (abfd, bfd_getx_signed_16, (ptr))
648
649 #define bfd_put_32(abfd, val, ptr) \
650 BFD_SEND(abfd, bfd_putx32, ((val),(ptr)))
651 #define bfd_put_signed_32 \
652 bfd_put_32
653 #define bfd_get_32(abfd, ptr) \
654 BFD_SEND(abfd, bfd_getx32, (ptr))
655 #define bfd_get_signed_32(abfd, ptr) \
656 BFD_SEND(abfd, bfd_getx_signed_32, (ptr))
657
658 #define bfd_put_64(abfd, val, ptr) \
659 BFD_SEND(abfd, bfd_putx64, ((val), (ptr)))
660 #define bfd_put_signed_64 \
661 bfd_put_64
662 #define bfd_get_64(abfd, ptr) \
663 BFD_SEND(abfd, bfd_getx64, (ptr))
664 #define bfd_get_signed_64(abfd, ptr) \
665 BFD_SEND(abfd, bfd_getx_signed_64, (ptr))
666
667
668 /* Byte swapping macros for file header data. */
669
670 #define bfd_h_put_8(abfd, val, ptr) \
671 bfd_put_8 (abfd, val, ptr)
672 #define bfd_h_put_signed_8(abfd, val, ptr) \
673 bfd_put_8 (abfd, val, ptr)
674 #define bfd_h_get_8(abfd, ptr) \
675 bfd_get_8 (abfd, ptr)
676 #define bfd_h_get_signed_8(abfd, ptr) \
677 bfd_get_signed_8 (abfd, ptr)
678
679 #define bfd_h_put_16(abfd, val, ptr) \
680 BFD_SEND(abfd, bfd_h_putx16,(val,ptr))
681 #define bfd_h_put_signed_16 \
682 bfd_h_put_16
683 #define bfd_h_get_16(abfd, ptr) \
684 BFD_SEND(abfd, bfd_h_getx16,(ptr))
685 #define bfd_h_get_signed_16(abfd, ptr) \
686 BFD_SEND(abfd, bfd_h_getx_signed_16, (ptr))
687
688 #define bfd_h_put_32(abfd, val, ptr) \
689 BFD_SEND(abfd, bfd_h_putx32,(val,ptr))
690 #define bfd_h_put_signed_32 \
691 bfd_h_put_32
692 #define bfd_h_get_32(abfd, ptr) \
693 BFD_SEND(abfd, bfd_h_getx32,(ptr))
694 #define bfd_h_get_signed_32(abfd, ptr) \
695 BFD_SEND(abfd, bfd_h_getx_signed_32, (ptr))
696
697 #define bfd_h_put_64(abfd, val, ptr) \
698 BFD_SEND(abfd, bfd_h_putx64,(val, ptr))
699 #define bfd_h_put_signed_64 \
700 bfd_h_put_64
701 #define bfd_h_get_64(abfd, ptr) \
702 BFD_SEND(abfd, bfd_h_getx64,(ptr))
703 #define bfd_h_get_signed_64(abfd, ptr) \
704 BFD_SEND(abfd, bfd_h_getx_signed_64, (ptr))
705
706 typedef struct sec
707 {
708 /* The name of the section; the name isn't a copy, the pointer is
709 the same as that passed to bfd_make_section. */
710
711 CONST char *name;
712
713 /* Which section is it; 0..nth. */
714
715 int index;
716
717 /* The next section in the list belonging to the BFD, or NULL. */
718
719 struct sec *next;
720
721 /* The field flags contains attributes of the section. Some
722 flags are read in from the object file, and some are
723 synthesized from other information. */
724
725 flagword flags;
726
727 #define SEC_NO_FLAGS 0x000
728
729 /* Tells the OS to allocate space for this section when loading.
730 This is clear for a section containing debug information
731 only. */
732 #define SEC_ALLOC 0x001
733
734 /* Tells the OS to load the section from the file when loading.
735 This is clear for a .bss section. */
736 #define SEC_LOAD 0x002
737
738 /* The section contains data still to be relocated, so there is
739 some relocation information too. */
740 #define SEC_RELOC 0x004
741
742 #if 0 /* Obsolete ? */
743 #define SEC_BALIGN 0x008
744 #endif
745
746 /* A signal to the OS that the section contains read only
747 data. */
748 #define SEC_READONLY 0x010
749
750 /* The section contains code only. */
751 #define SEC_CODE 0x020
752
753 /* The section contains data only. */
754 #define SEC_DATA 0x040
755
756 /* The section will reside in ROM. */
757 #define SEC_ROM 0x080
758
759 /* The section contains constructor information. This section
760 type is used by the linker to create lists of constructors and
761 destructors used by <<g++>>. When a back end sees a symbol
762 which should be used in a constructor list, it creates a new
763 section for the type of name (e.g., <<__CTOR_LIST__>>), attaches
764 the symbol to it, and builds a relocation. To build the lists
765 of constructors, all the linker has to do is catenate all the
766 sections called <<__CTOR_LIST__>> and relocate the data
767 contained within - exactly the operations it would peform on
768 standard data. */
769 #define SEC_CONSTRUCTOR 0x100
770
771 /* The section is a constuctor, and should be placed at the
772 end of the text, data, or bss section(?). */
773 #define SEC_CONSTRUCTOR_TEXT 0x1100
774 #define SEC_CONSTRUCTOR_DATA 0x2100
775 #define SEC_CONSTRUCTOR_BSS 0x3100
776
777 /* The section has contents - a data section could be
778 <<SEC_ALLOC>> | <<SEC_HAS_CONTENTS>>; a debug section could be
779 <<SEC_HAS_CONTENTS>> */
780 #define SEC_HAS_CONTENTS 0x200
781
782 /* An instruction to the linker to not output the section
783 even if it has information which would normally be written. */
784 #define SEC_NEVER_LOAD 0x400
785
786 /* The section is a COFF shared library section. This flag is
787 only for the linker. If this type of section appears in
788 the input file, the linker must copy it to the output file
789 without changing the vma or size. FIXME: Although this
790 was originally intended to be general, it really is COFF
791 specific (and the flag was renamed to indicate this). It
792 might be cleaner to have some more general mechanism to
793 allow the back end to control what the linker does with
794 sections. */
795 #define SEC_COFF_SHARED_LIBRARY 0x800
796
797 /* The section is a common section (symbols may be defined
798 multiple times, the value of a symbol is the amount of
799 space it requires, and the largest symbol value is the one
800 used). Most targets have exactly one of these (which we
801 translate to bfd_com_section_ptr), but ECOFF has two. */
802 #define SEC_IS_COMMON 0x8000
803
804 /* The section contains only debugging information. For
805 example, this is set for ELF .debug and .stab sections.
806 strip tests this flag to see if a section can be
807 discarded. */
808 #define SEC_DEBUGGING 0x10000
809
810 /* The contents of this section are held in memory pointed to
811 by the contents field. This is checked by
812 bfd_get_section_contents, and the data is retrieved from
813 memory if appropriate. */
814 #define SEC_IN_MEMORY 0x20000
815
816 /* End of section flags. */
817
818 /* The virtual memory address of the section - where it will be
819 at run time. The symbols are relocated against this. The
820 user_set_vma flag is maintained by bfd; if it's not set, the
821 backend can assign addresses (for example, in <<a.out>>, where
822 the default address for <<.data>> is dependent on the specific
823 target and various flags). */
824
825 bfd_vma vma;
826 boolean user_set_vma;
827
828 /* The load address of the section - where it would be in a
829 rom image; really only used for writing section header
830 information. */
831
832 bfd_vma lma;
833
834 /* The size of the section in bytes, as it will be output.
835 contains a value even if the section has no contents (e.g., the
836 size of <<.bss>>). This will be filled in after relocation */
837
838 bfd_size_type _cooked_size;
839
840 /* The original size on disk of the section, in bytes. Normally this
841 value is the same as the size, but if some relaxing has
842 been done, then this value will be bigger. */
843
844 bfd_size_type _raw_size;
845
846 /* If this section is going to be output, then this value is the
847 offset into the output section of the first byte in the input
848 section. E.g., if this was going to start at the 100th byte in
849 the output section, this value would be 100. */
850
851 bfd_vma output_offset;
852
853 /* The output section through which to map on output. */
854
855 struct sec *output_section;
856
857 /* The alignment requirement of the section, as an exponent of 2 -
858 e.g., 3 aligns to 2^3 (or 8). */
859
860 unsigned int alignment_power;
861
862 /* If an input section, a pointer to a vector of relocation
863 records for the data in this section. */
864
865 struct reloc_cache_entry *relocation;
866
867 /* If an output section, a pointer to a vector of pointers to
868 relocation records for the data in this section. */
869
870 struct reloc_cache_entry **orelocation;
871
872 /* The number of relocation records in one of the above */
873
874 unsigned reloc_count;
875
876 /* Information below is back end specific - and not always used
877 or updated. */
878
879 /* File position of section data */
880
881 file_ptr filepos;
882
883 /* File position of relocation info */
884
885 file_ptr rel_filepos;
886
887 /* File position of line data */
888
889 file_ptr line_filepos;
890
891 /* Pointer to data for applications */
892
893 PTR userdata;
894
895 /* If the SEC_IN_MEMORY flag is set, this points to the actual
896 contents. */
897 unsigned char *contents;
898
899 /* Attached line number information */
900
901 alent *lineno;
902
903 /* Number of line number records */
904
905 unsigned int lineno_count;
906
907 /* When a section is being output, this value changes as more
908 linenumbers are written out */
909
910 file_ptr moving_line_filepos;
911
912 /* What the section number is in the target world */
913
914 int target_index;
915
916 PTR used_by_bfd;
917
918 /* If this is a constructor section then here is a list of the
919 relocations created to relocate items within it. */
920
921 struct relent_chain *constructor_chain;
922
923 /* The BFD which owns the section. */
924
925 bfd *owner;
926
927 boolean reloc_done;
928 /* A symbol which points at this section only */
929 struct symbol_cache_entry *symbol;
930 struct symbol_cache_entry **symbol_ptr_ptr;
931
932 struct bfd_link_order *link_order_head;
933 struct bfd_link_order *link_order_tail;
934 } asection ;
935
936 /* These sections are global, and are managed by BFD. The application
937 and target back end are not permitted to change the values in
938 these sections. New code should use the section_ptr macros rather
939 than referring directly to the const sections. The const sections
940 may eventually vanish. */
941 #define BFD_ABS_SECTION_NAME "*ABS*"
942 #define BFD_UND_SECTION_NAME "*UND*"
943 #define BFD_COM_SECTION_NAME "*COM*"
944 #define BFD_IND_SECTION_NAME "*IND*"
945
946 /* the absolute section */
947 extern const asection bfd_abs_section;
948 #define bfd_abs_section_ptr ((asection *) &bfd_abs_section)
949 #define bfd_is_abs_section(sec) ((sec) == bfd_abs_section_ptr)
950 /* Pointer to the undefined section */
951 extern const asection bfd_und_section;
952 #define bfd_und_section_ptr ((asection *) &bfd_und_section)
953 #define bfd_is_und_section(sec) ((sec) == bfd_und_section_ptr)
954 /* Pointer to the common section */
955 extern const asection bfd_com_section;
956 #define bfd_com_section_ptr ((asection *) &bfd_com_section)
957 /* Pointer to the indirect section */
958 extern const asection bfd_ind_section;
959 #define bfd_ind_section_ptr ((asection *) &bfd_ind_section)
960 #define bfd_is_ind_section(sec) ((sec) == bfd_ind_section_ptr)
961
962 extern const struct symbol_cache_entry * const bfd_abs_symbol;
963 extern const struct symbol_cache_entry * const bfd_com_symbol;
964 extern const struct symbol_cache_entry * const bfd_und_symbol;
965 extern const struct symbol_cache_entry * const bfd_ind_symbol;
966 #define bfd_get_section_size_before_reloc(section) \
967 (section->reloc_done ? (abort(),1): (section)->_raw_size)
968 #define bfd_get_section_size_after_reloc(section) \
969 ((section->reloc_done) ? (section)->_cooked_size: (abort(),1))
970 asection *
971 bfd_get_section_by_name PARAMS ((bfd *abfd, CONST char *name));
972
973 asection *
974 bfd_make_section_old_way PARAMS ((bfd *abfd, CONST char *name));
975
976 asection *
977 bfd_make_section_anyway PARAMS ((bfd *abfd, CONST char *name));
978
979 asection *
980 bfd_make_section PARAMS ((bfd *, CONST char *name));
981
982 boolean
983 bfd_set_section_flags PARAMS ((bfd *abfd, asection *sec, flagword flags));
984
985 void
986 bfd_map_over_sections PARAMS ((bfd *abfd,
987 void (*func)(bfd *abfd,
988 asection *sect,
989 PTR obj),
990 PTR obj));
991
992 boolean
993 bfd_set_section_size PARAMS ((bfd *abfd, asection *sec, bfd_size_type val));
994
995 boolean
996 bfd_set_section_contents
997 PARAMS ((bfd *abfd,
998 asection *section,
999 PTR data,
1000 file_ptr offset,
1001 bfd_size_type count));
1002
1003 boolean
1004 bfd_get_section_contents
1005 PARAMS ((bfd *abfd, asection *section, PTR location,
1006 file_ptr offset, bfd_size_type count));
1007
1008 boolean
1009 bfd_copy_private_section_data PARAMS ((bfd *ibfd, asection *isec, bfd *obfd, asection *osec));
1010
1011 #define bfd_copy_private_section_data(ibfd, isection, obfd, osection) \
1012 BFD_SEND (ibfd, _bfd_copy_private_section_data, \
1013 (ibfd, isection, obfd, osection))
1014 enum bfd_architecture
1015 {
1016 bfd_arch_unknown, /* File arch not known */
1017 bfd_arch_obscure, /* Arch known, not one of these */
1018 bfd_arch_m68k, /* Motorola 68xxx */
1019 bfd_arch_vax, /* DEC Vax */
1020 bfd_arch_i960, /* Intel 960 */
1021 /* The order of the following is important.
1022 lower number indicates a machine type that
1023 only accepts a subset of the instructions
1024 available to machines with higher numbers.
1025 The exception is the "ca", which is
1026 incompatible with all other machines except
1027 "core". */
1028
1029 #define bfd_mach_i960_core 1
1030 #define bfd_mach_i960_ka_sa 2
1031 #define bfd_mach_i960_kb_sb 3
1032 #define bfd_mach_i960_mc 4
1033 #define bfd_mach_i960_xa 5
1034 #define bfd_mach_i960_ca 6
1035 /* start-sanitize-i960xl */
1036 #define bfd_mach_i960_xl 7
1037 /* end-sanitize-i960xl */
1038
1039 bfd_arch_a29k, /* AMD 29000 */
1040 bfd_arch_sparc, /* SPARC */
1041 #define bfd_mach_sparc 1
1042 #define bfd_mach_sparc64 2
1043 bfd_arch_mips, /* MIPS Rxxxx */
1044 bfd_arch_i386, /* Intel 386 */
1045 bfd_arch_we32k, /* AT&T WE32xxx */
1046 bfd_arch_tahoe, /* CCI/Harris Tahoe */
1047 bfd_arch_i860, /* Intel 860 */
1048 bfd_arch_romp, /* IBM ROMP PC/RT */
1049 bfd_arch_alliant, /* Alliant */
1050 bfd_arch_convex, /* Convex */
1051 bfd_arch_m88k, /* Motorola 88xxx */
1052 bfd_arch_pyramid, /* Pyramid Technology */
1053 bfd_arch_h8300, /* Hitachi H8/300 */
1054 #define bfd_mach_h8300 1
1055 #define bfd_mach_h8300h 2
1056 bfd_arch_powerpc, /* PowerPC */
1057 bfd_arch_rs6000, /* IBM RS/6000 */
1058 bfd_arch_hppa, /* HP PA RISC */
1059 bfd_arch_z8k, /* Zilog Z8000 */
1060 #define bfd_mach_z8001 1
1061 #define bfd_mach_z8002 2
1062 bfd_arch_h8500, /* Hitachi H8/500 */
1063 bfd_arch_sh, /* Hitachi SH */
1064 bfd_arch_alpha, /* Dec Alpha */
1065 bfd_arch_arm, /* Advanced Risc Machines ARM */
1066 bfd_arch_ns32k, /* National Semiconductors ns32000 */
1067 bfd_arch_w65, /* WDC 65816 */
1068 /* start-sanitize-rce */
1069 bfd_arch_rce, /* Motorola RCE */
1070 /* end-sanitize-rce */
1071 /* start-sanitize-arc */
1072 bfd_arch_arc, /* Argonaut RISC Core */
1073 #define bfd_mach_arc_base 0
1074 #define bfd_mach_arc_host 1
1075 #define bfd_mach_arc_graphics 2
1076 #define bfd_mach_arc_audio 3
1077 /* end-sanitize-arc */
1078 bfd_arch_last
1079 };
1080
1081 typedef struct bfd_arch_info
1082 {
1083 int bits_per_word;
1084 int bits_per_address;
1085 int bits_per_byte;
1086 enum bfd_architecture arch;
1087 unsigned long mach;
1088 const char *arch_name;
1089 const char *printable_name;
1090 unsigned int section_align_power;
1091 /* true if this is the default machine for the architecture */
1092 boolean the_default;
1093 const struct bfd_arch_info * (*compatible)
1094 PARAMS ((const struct bfd_arch_info *a,
1095 const struct bfd_arch_info *b));
1096
1097 boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
1098
1099 const struct bfd_arch_info *next;
1100 } bfd_arch_info_type;
1101 const char *
1102 bfd_printable_name PARAMS ((bfd *abfd));
1103
1104 const bfd_arch_info_type *
1105 bfd_scan_arch PARAMS ((const char *string));
1106
1107 const bfd_arch_info_type *
1108 bfd_arch_get_compatible PARAMS ((
1109 const bfd *abfd,
1110 const bfd *bbfd));
1111
1112 void
1113 bfd_set_arch_info PARAMS ((bfd *abfd, const bfd_arch_info_type *arg));
1114
1115 enum bfd_architecture
1116 bfd_get_arch PARAMS ((bfd *abfd));
1117
1118 unsigned long
1119 bfd_get_mach PARAMS ((bfd *abfd));
1120
1121 unsigned int
1122 bfd_arch_bits_per_byte PARAMS ((bfd *abfd));
1123
1124 unsigned int
1125 bfd_arch_bits_per_address PARAMS ((bfd *abfd));
1126
1127 const bfd_arch_info_type *
1128 bfd_get_arch_info PARAMS ((bfd *abfd));
1129
1130 const bfd_arch_info_type *
1131 bfd_lookup_arch
1132 PARAMS ((enum bfd_architecture
1133 arch,
1134 unsigned long machine));
1135
1136 const char *
1137 bfd_printable_arch_mach
1138 PARAMS ((enum bfd_architecture arch, unsigned long machine));
1139
1140 typedef enum bfd_reloc_status
1141 {
1142 /* No errors detected */
1143 bfd_reloc_ok,
1144
1145 /* The relocation was performed, but there was an overflow. */
1146 bfd_reloc_overflow,
1147
1148 /* The address to relocate was not within the section supplied. */
1149 bfd_reloc_outofrange,
1150
1151 /* Used by special functions */
1152 bfd_reloc_continue,
1153
1154 /* Unsupported relocation size requested. */
1155 bfd_reloc_notsupported,
1156
1157 /* Unused */
1158 bfd_reloc_other,
1159
1160 /* The symbol to relocate against was undefined. */
1161 bfd_reloc_undefined,
1162
1163 /* The relocation was performed, but may not be ok - presently
1164 generated only when linking i960 coff files with i960 b.out
1165 symbols. If this type is returned, the error_message argument
1166 to bfd_perform_relocation will be set. */
1167 bfd_reloc_dangerous
1168 }
1169 bfd_reloc_status_type;
1170
1171
1172 typedef struct reloc_cache_entry
1173 {
1174 /* A pointer into the canonical table of pointers */
1175 struct symbol_cache_entry **sym_ptr_ptr;
1176
1177 /* offset in section */
1178 bfd_size_type address;
1179
1180 /* addend for relocation value */
1181 bfd_vma addend;
1182
1183 /* Pointer to how to perform the required relocation */
1184 reloc_howto_type *howto;
1185
1186 } arelent;
1187 enum complain_overflow
1188 {
1189 /* Do not complain on overflow. */
1190 complain_overflow_dont,
1191
1192 /* Complain if the bitfield overflows, whether it is considered
1193 as signed or unsigned. */
1194 complain_overflow_bitfield,
1195
1196 /* Complain if the value overflows when considered as signed
1197 number. */
1198 complain_overflow_signed,
1199
1200 /* Complain if the value overflows when considered as an
1201 unsigned number. */
1202 complain_overflow_unsigned
1203 };
1204
1205 struct reloc_howto_struct
1206 {
1207 /* The type field has mainly a documetary use - the back end can
1208 do what it wants with it, though normally the back end's
1209 external idea of what a reloc number is stored
1210 in this field. For example, a PC relative word relocation
1211 in a coff environment has the type 023 - because that's
1212 what the outside world calls a R_PCRWORD reloc. */
1213 unsigned int type;
1214
1215 /* The value the final relocation is shifted right by. This drops
1216 unwanted data from the relocation. */
1217 unsigned int rightshift;
1218
1219 /* The size of the item to be relocated. This is *not* a
1220 power-of-two measure. To get the number of bytes operated
1221 on by a type of relocation, use bfd_get_reloc_size. */
1222 int size;
1223
1224 /* The number of bits in the item to be relocated. This is used
1225 when doing overflow checking. */
1226 unsigned int bitsize;
1227
1228 /* Notes that the relocation is relative to the location in the
1229 data section of the addend. The relocation function will
1230 subtract from the relocation value the address of the location
1231 being relocated. */
1232 boolean pc_relative;
1233
1234 /* The bit position of the reloc value in the destination.
1235 The relocated value is left shifted by this amount. */
1236 unsigned int bitpos;
1237
1238 /* What type of overflow error should be checked for when
1239 relocating. */
1240 enum complain_overflow complain_on_overflow;
1241
1242 /* If this field is non null, then the supplied function is
1243 called rather than the normal function. This allows really
1244 strange relocation methods to be accomodated (e.g., i960 callj
1245 instructions). */
1246 bfd_reloc_status_type (*special_function)
1247 PARAMS ((bfd *abfd,
1248 arelent *reloc_entry,
1249 struct symbol_cache_entry *symbol,
1250 PTR data,
1251 asection *input_section,
1252 bfd *output_bfd,
1253 char **error_message));
1254
1255 /* The textual name of the relocation type. */
1256 char *name;
1257
1258 /* When performing a partial link, some formats must modify the
1259 relocations rather than the data - this flag signals this.*/
1260 boolean partial_inplace;
1261
1262 /* The src_mask selects which parts of the read in data
1263 are to be used in the relocation sum. E.g., if this was an 8 bit
1264 bit of data which we read and relocated, this would be
1265 0x000000ff. When we have relocs which have an addend, such as
1266 sun4 extended relocs, the value in the offset part of a
1267 relocating field is garbage so we never use it. In this case
1268 the mask would be 0x00000000. */
1269 bfd_vma src_mask;
1270
1271 /* The dst_mask selects which parts of the instruction are replaced
1272 into the instruction. In most cases src_mask == dst_mask,
1273 except in the above special case, where dst_mask would be
1274 0x000000ff, and src_mask would be 0x00000000. */
1275 bfd_vma dst_mask;
1276
1277 /* When some formats create PC relative instructions, they leave
1278 the value of the pc of the place being relocated in the offset
1279 slot of the instruction, so that a PC relative relocation can
1280 be made just by adding in an ordinary offset (e.g., sun3 a.out).
1281 Some formats leave the displacement part of an instruction
1282 empty (e.g., m88k bcs); this flag signals the fact.*/
1283 boolean pcrel_offset;
1284
1285 };
1286 #define HOWTO(C, R,S,B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
1287 {(unsigned)C,R,S,B, P, BI, O,SF,NAME,INPLACE,MASKSRC,MASKDST,PC}
1288 #define NEWHOWTO( FUNCTION, NAME,SIZE,REL,IN) HOWTO(0,0,SIZE,0,REL,0,complain_overflow_dont,FUNCTION, NAME,false,0,0,IN)
1289
1290 #define HOWTO_PREPARE(relocation, symbol) \
1291 { \
1292 if (symbol != (asymbol *)NULL) { \
1293 if (bfd_is_com_section (symbol->section)) { \
1294 relocation = 0; \
1295 } \
1296 else { \
1297 relocation = symbol->value; \
1298 } \
1299 } \
1300 }
1301 int
1302 bfd_get_reloc_size PARAMS ((reloc_howto_type *));
1303
1304 typedef struct relent_chain {
1305 arelent relent;
1306 struct relent_chain *next;
1307 } arelent_chain;
1308 bfd_reloc_status_type
1309
1310 bfd_perform_relocation
1311 PARAMS ((bfd *abfd,
1312 arelent *reloc_entry,
1313 PTR data,
1314 asection *input_section,
1315 bfd *output_bfd,
1316 char **error_message));
1317
1318 bfd_reloc_status_type
1319
1320 bfd_install_relocation
1321 PARAMS ((bfd *abfd,
1322 arelent *reloc_entry,
1323 PTR data, bfd_vma data_start,
1324 asection *input_section,
1325 char **error_message));
1326
1327 enum bfd_reloc_code_real {
1328 _dummy_first_bfd_reloc_code_real,
1329
1330
1331 /* Basic absolute relocations of N bits. */
1332 BFD_RELOC_64,
1333 BFD_RELOC_32,
1334 BFD_RELOC_26,
1335 BFD_RELOC_16,
1336 BFD_RELOC_14,
1337 BFD_RELOC_8,
1338
1339 /* PC-relative relocations. Sometimes these are relative to the address
1340 of the relocation itself; sometimes they are relative to the start of
1341 the section containing the relocation. It depends on the specific target.
1342
1343 The 24-bit relocation is used in some Intel 960 configurations. */
1344 BFD_RELOC_64_PCREL,
1345 BFD_RELOC_32_PCREL,
1346 BFD_RELOC_24_PCREL,
1347 BFD_RELOC_16_PCREL,
1348 BFD_RELOC_12_PCREL,
1349 BFD_RELOC_8_PCREL,
1350
1351 /* For ELF. */
1352 BFD_RELOC_32_GOT_PCREL,
1353 BFD_RELOC_16_GOT_PCREL,
1354 BFD_RELOC_8_GOT_PCREL,
1355 BFD_RELOC_32_GOTOFF,
1356 BFD_RELOC_16_GOTOFF,
1357 BFD_RELOC_LO16_GOTOFF,
1358 BFD_RELOC_HI16_GOTOFF,
1359 BFD_RELOC_HI16_S_GOTOFF,
1360 BFD_RELOC_8_GOTOFF,
1361 BFD_RELOC_32_PLT_PCREL,
1362 BFD_RELOC_24_PLT_PCREL,
1363 BFD_RELOC_16_PLT_PCREL,
1364 BFD_RELOC_8_PLT_PCREL,
1365 BFD_RELOC_32_PLTOFF,
1366 BFD_RELOC_16_PLTOFF,
1367 BFD_RELOC_LO16_PLTOFF,
1368 BFD_RELOC_HI16_PLTOFF,
1369 BFD_RELOC_HI16_S_PLTOFF,
1370 BFD_RELOC_8_PLTOFF,
1371
1372 /* Relocations used by 68K ELF. */
1373 BFD_RELOC_68K_GLOB_DAT,
1374 BFD_RELOC_68K_JMP_SLOT,
1375 BFD_RELOC_68K_RELATIVE,
1376
1377 /* Linkage-table relative. */
1378 BFD_RELOC_32_BASEREL,
1379 BFD_RELOC_16_BASEREL,
1380 BFD_RELOC_LO16_BASEREL,
1381 BFD_RELOC_HI16_BASEREL,
1382 BFD_RELOC_HI16_S_BASEREL,
1383 BFD_RELOC_8_BASEREL,
1384 BFD_RELOC_RVA,
1385
1386 /* Absolute 8-bit relocation, but used to form an address like 0xFFnn. */
1387 BFD_RELOC_8_FFnn,
1388
1389 /* These PC-relative relocations are stored as word displacements --
1390 i.e., byte displacements shifted right two bits. The 30-bit word
1391 displacement (<<32_PCREL_S2>> -- 32 bits, shifted 2) is used on the
1392 SPARC. (SPARC tools generally refer to this as <<WDISP30>>.) The
1393 signed 16-bit displacement is used on the MIPS, and the 23-bit
1394 displacement is used on the Alpha. */
1395 BFD_RELOC_32_PCREL_S2,
1396 BFD_RELOC_16_PCREL_S2,
1397 BFD_RELOC_23_PCREL_S2,
1398
1399 /* High 22 bits and low 10 bits of 32-bit value, placed into lower bits of
1400 the target word. These are used on the SPARC. */
1401 BFD_RELOC_HI22,
1402 BFD_RELOC_LO10,
1403
1404 /* For systems that allocate a Global Pointer register, these are
1405 displacements off that register. These relocation types are
1406 handled specially, because the value the register will have is
1407 decided relatively late. */
1408 BFD_RELOC_GPREL16,
1409 BFD_RELOC_GPREL32,
1410
1411 /* Reloc types used for i960/b.out. */
1412 BFD_RELOC_I960_CALLJ,
1413
1414 /* SPARC ELF relocations. There is probably some overlap with other
1415 relocation types already defined. */
1416 BFD_RELOC_NONE,
1417 BFD_RELOC_SPARC_WDISP22,
1418 BFD_RELOC_SPARC22,
1419 BFD_RELOC_SPARC13,
1420 BFD_RELOC_SPARC_GOT10,
1421 BFD_RELOC_SPARC_GOT13,
1422 BFD_RELOC_SPARC_GOT22,
1423 BFD_RELOC_SPARC_PC10,
1424 BFD_RELOC_SPARC_PC22,
1425 BFD_RELOC_SPARC_WPLT30,
1426 BFD_RELOC_SPARC_COPY,
1427 BFD_RELOC_SPARC_GLOB_DAT,
1428 BFD_RELOC_SPARC_JMP_SLOT,
1429 BFD_RELOC_SPARC_RELATIVE,
1430 BFD_RELOC_SPARC_UA32,
1431
1432 /* I think these are specific to SPARC a.out (e.g., Sun 4). */
1433 BFD_RELOC_SPARC_BASE13,
1434 BFD_RELOC_SPARC_BASE22,
1435
1436 /* Some relocations we're using for SPARC V9 -- subject to change. */
1437 #define BFD_RELOC_SPARC_64 BFD_RELOC_64
1438 BFD_RELOC_SPARC_10,
1439 BFD_RELOC_SPARC_11,
1440 BFD_RELOC_SPARC_OLO10,
1441 BFD_RELOC_SPARC_HH22,
1442 BFD_RELOC_SPARC_HM10,
1443 BFD_RELOC_SPARC_LM22,
1444 BFD_RELOC_SPARC_PC_HH22,
1445 BFD_RELOC_SPARC_PC_HM10,
1446 BFD_RELOC_SPARC_PC_LM22,
1447 BFD_RELOC_SPARC_WDISP16,
1448 BFD_RELOC_SPARC_WDISP19,
1449 BFD_RELOC_SPARC_GLOB_JMP,
1450 BFD_RELOC_SPARC_LO7,
1451
1452 /* Alpha ECOFF relocations. Some of these treat the symbol or "addend"
1453 in some special way.
1454 For GPDISP_HI16 ("gpdisp") relocations, the symbol is ignored when
1455 writing; when reading, it will be the absolute section symbol. The
1456 addend is the displacement in bytes of the "lda" instruction from
1457 the "ldah" instruction (which is at the address of this reloc). */
1458 BFD_RELOC_ALPHA_GPDISP_HI16,
1459
1460 /* For GPDISP_LO16 ("ignore") relocations, the symbol is handled as
1461 with GPDISP_HI16 relocs. The addend is ignored when writing the
1462 relocations out, and is filled in with the file's GP value on
1463 reading, for convenience. */
1464 BFD_RELOC_ALPHA_GPDISP_LO16,
1465
1466 /* The Alpha LITERAL/LITUSE relocs are produced by a symbol reference;
1467 the assembler turns it into a LDQ instruction to load the address of
1468 the symbol, and then fills in a register in the real instruction.
1469
1470 The LITERAL reloc, at the LDQ instruction, refers to the .lita
1471 section symbol. The addend is ignored when writing, but is filled
1472 in with the file's GP value on reading, for convenience, as with the
1473 GPDISP_LO16 reloc.
1474
1475 The LITUSE reloc, on the instruction using the loaded address, gives
1476 information to the linker that it might be able to use to optimize
1477 away some literal section references. The symbol is ignored (read
1478 as the absolute section symbol), and the "addend" indicates the type
1479 of instruction using the register:
1480 1 - "memory" fmt insn
1481 2 - byte-manipulation (byte offset reg)
1482 3 - jsr (target of branch)
1483
1484 The GNU linker currently doesn't do any of this optimizing. */
1485 BFD_RELOC_ALPHA_LITERAL,
1486 BFD_RELOC_ALPHA_LITUSE,
1487
1488 /* The HINT relocation indicates a value that should be filled into the
1489 "hint" field of a jmp/jsr/ret instruction, for possible branch-
1490 prediction logic which may be provided on some processors. */
1491 BFD_RELOC_ALPHA_HINT,
1492
1493 /* Bits 27..2 of the relocation address shifted right 2 bits;
1494 simple reloc otherwise. */
1495 BFD_RELOC_MIPS_JMP,
1496
1497 /* High 16 bits of 32-bit value; simple reloc. */
1498 BFD_RELOC_HI16,
1499
1500 /* High 16 bits of 32-bit value but the low 16 bits will be sign
1501 extended and added to form the final result. If the low 16
1502 bits form a negative number, we need to add one to the high value
1503 to compensate for the borrow when the low bits are added. */
1504 BFD_RELOC_HI16_S,
1505
1506 /* Low 16 bits. */
1507 BFD_RELOC_LO16,
1508
1509 /* Like BFD_RELOC_HI16_S, but PC relative. */
1510 BFD_RELOC_PCREL_HI16_S,
1511
1512 /* Like BFD_RELOC_LO16, but PC relative. */
1513 BFD_RELOC_PCREL_LO16,
1514
1515 /* Relocation relative to the global pointer. */
1516 #define BFD_RELOC_MIPS_GPREL BFD_RELOC_GPREL16
1517
1518 /* Relocation against a MIPS literal section. */
1519 BFD_RELOC_MIPS_LITERAL,
1520
1521 /* MIPS ELF relocations. */
1522 BFD_RELOC_MIPS_GOT16,
1523 BFD_RELOC_MIPS_CALL16,
1524 #define BFD_RELOC_MIPS_GPREL32 BFD_RELOC_GPREL32
1525
1526 /* i386/elf relocations */
1527 BFD_RELOC_386_GOT32,
1528 BFD_RELOC_386_PLT32,
1529 BFD_RELOC_386_COPY,
1530 BFD_RELOC_386_GLOB_DAT,
1531 BFD_RELOC_386_JUMP_SLOT,
1532 BFD_RELOC_386_RELATIVE,
1533 BFD_RELOC_386_GOTOFF,
1534 BFD_RELOC_386_GOTPC,
1535
1536 /* ns32k relocations */
1537 BFD_RELOC_NS32K_IMM_8,
1538 BFD_RELOC_NS32K_IMM_16,
1539 BFD_RELOC_NS32K_IMM_32,
1540 BFD_RELOC_NS32K_IMM_8_PCREL,
1541 BFD_RELOC_NS32K_IMM_16_PCREL,
1542 BFD_RELOC_NS32K_IMM_32_PCREL,
1543 BFD_RELOC_NS32K_DISP_8,
1544 BFD_RELOC_NS32K_DISP_16,
1545 BFD_RELOC_NS32K_DISP_32,
1546 BFD_RELOC_NS32K_DISP_8_PCREL,
1547 BFD_RELOC_NS32K_DISP_16_PCREL,
1548 BFD_RELOC_NS32K_DISP_32_PCREL,
1549
1550 /* Power(rs6000) and PowerPC relocations. */
1551 BFD_RELOC_PPC_B26,
1552 BFD_RELOC_PPC_BA26,
1553 BFD_RELOC_PPC_TOC16,
1554 BFD_RELOC_PPC_B16,
1555 BFD_RELOC_PPC_B16_BRTAKEN,
1556 BFD_RELOC_PPC_B16_BRNTAKEN,
1557 BFD_RELOC_PPC_BA16,
1558 BFD_RELOC_PPC_BA16_BRTAKEN,
1559 BFD_RELOC_PPC_BA16_BRNTAKEN,
1560 BFD_RELOC_PPC_COPY,
1561 BFD_RELOC_PPC_GLOB_DAT,
1562 BFD_RELOC_PPC_JMP_SLOT,
1563 BFD_RELOC_PPC_RELATIVE,
1564 BFD_RELOC_PPC_LOCAL24PC,
1565
1566 /* The type of reloc used to build a contructor table - at the moment
1567 probably a 32 bit wide absolute relocation, but the target can choose.
1568 It generally does map to one of the other relocation types. */
1569 BFD_RELOC_CTOR,
1570
1571 /* ARM 26 bit pc-relative branch. The lowest two bits must be zero and are
1572 not stored in the instruction. */
1573 BFD_RELOC_ARM_PCREL_BRANCH,
1574
1575 /* These relocs are only used within the ARM assembler. They are not
1576 (at present) written to any object files. */
1577 BFD_RELOC_ARM_IMMEDIATE,
1578 BFD_RELOC_ARM_OFFSET_IMM,
1579 BFD_RELOC_ARM_SHIFT_IMM,
1580 BFD_RELOC_ARM_SWI,
1581 BFD_RELOC_ARM_MULTI,
1582 BFD_RELOC_ARM_CP_OFF_IMM,
1583 BFD_RELOC_ARM_ADR_IMM,
1584 BFD_RELOC_ARM_LDR_IMM,
1585 BFD_RELOC_ARM_LITERAL,
1586 BFD_RELOC_ARM_IN_POOL,
1587 /* start-sanitize-arc */
1588
1589 /* Argonaut RISC Core (ARC) relocs.
1590 ARC 22 bit pc-relative branch. The lowest two bits must be zero and are
1591 not stored in the instruction. The high 20 bits are installed in bits 26
1592 through 7 of the instruction. */
1593 BFD_RELOC_ARC_B22_PCREL,
1594
1595 /* ARC 26 bit absolute branch. The lowest two bits must be zero and are not
1596 stored in the instruction. The high 24 bits are installed in bits 23
1597 through 0. */
1598 BFD_RELOC_ARC_B26,
1599 /* end-sanitize-arc */
1600 BFD_RELOC_UNUSED };
1601 typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
1602 reloc_howto_type *
1603
1604 bfd_reloc_type_lookup PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
1605
1606 const char *
1607 bfd_get_reloc_code_name PARAMS ((bfd_reloc_code_real_type code));
1608
1609
1610 typedef struct symbol_cache_entry
1611 {
1612 /* A pointer to the BFD which owns the symbol. This information
1613 is necessary so that a back end can work out what additional
1614 information (invisible to the application writer) is carried
1615 with the symbol.
1616
1617 This field is *almost* redundant, since you can use section->owner
1618 instead, except that some symbols point to the global sections
1619 bfd_{abs,com,und}_section. This could be fixed by making
1620 these globals be per-bfd (or per-target-flavor). FIXME. */
1621
1622 struct _bfd *the_bfd; /* Use bfd_asymbol_bfd(sym) to access this field. */
1623
1624 /* The text of the symbol. The name is left alone, and not copied; the
1625 application may not alter it. */
1626 CONST char *name;
1627
1628 /* The value of the symbol. This really should be a union of a
1629 numeric value with a pointer, since some flags indicate that
1630 a pointer to another symbol is stored here. */
1631 symvalue value;
1632
1633 /* Attributes of a symbol: */
1634
1635 #define BSF_NO_FLAGS 0x00
1636
1637 /* The symbol has local scope; <<static>> in <<C>>. The value
1638 is the offset into the section of the data. */
1639 #define BSF_LOCAL 0x01
1640
1641 /* The symbol has global scope; initialized data in <<C>>. The
1642 value is the offset into the section of the data. */
1643 #define BSF_GLOBAL 0x02
1644
1645 /* The symbol has global scope and is exported. The value is
1646 the offset into the section of the data. */
1647 #define BSF_EXPORT BSF_GLOBAL /* no real difference */
1648
1649 /* A normal C symbol would be one of:
1650 <<BSF_LOCAL>>, <<BSF_FORT_COMM>>, <<BSF_UNDEFINED>> or
1651 <<BSF_GLOBAL>> */
1652
1653 /* The symbol is a debugging record. The value has an arbitary
1654 meaning. */
1655 #define BSF_DEBUGGING 0x08
1656
1657 /* The symbol denotes a function entry point. Used in ELF,
1658 perhaps others someday. */
1659 #define BSF_FUNCTION 0x10
1660
1661 /* Used by the linker. */
1662 #define BSF_KEEP 0x20
1663 #define BSF_KEEP_G 0x40
1664
1665 /* A weak global symbol, overridable without warnings by
1666 a regular global symbol of the same name. */
1667 #define BSF_WEAK 0x80
1668
1669 /* This symbol was created to point to a section, e.g. ELF's
1670 STT_SECTION symbols. */
1671 #define BSF_SECTION_SYM 0x100
1672
1673 /* The symbol used to be a common symbol, but now it is
1674 allocated. */
1675 #define BSF_OLD_COMMON 0x200
1676
1677 /* The default value for common data. */
1678 #define BFD_FORT_COMM_DEFAULT_VALUE 0
1679
1680 /* In some files the type of a symbol sometimes alters its
1681 location in an output file - ie in coff a <<ISFCN>> symbol
1682 which is also <<C_EXT>> symbol appears where it was
1683 declared and not at the end of a section. This bit is set
1684 by the target BFD part to convey this information. */
1685
1686 #define BSF_NOT_AT_END 0x400
1687
1688 /* Signal that the symbol is the label of constructor section. */
1689 #define BSF_CONSTRUCTOR 0x800
1690
1691 /* Signal that the symbol is a warning symbol. The name is a
1692 warning. The name of the next symbol is the one to warn about;
1693 if a reference is made to a symbol with the same name as the next
1694 symbol, a warning is issued by the linker. */
1695 #define BSF_WARNING 0x1000
1696
1697 /* Signal that the symbol is indirect. This symbol is an indirect
1698 pointer to the symbol with the same name as the next symbol. */
1699 #define BSF_INDIRECT 0x2000
1700
1701 /* BSF_FILE marks symbols that contain a file name. This is used
1702 for ELF STT_FILE symbols. */
1703 #define BSF_FILE 0x4000
1704
1705 /* Symbol is from dynamic linking information. */
1706 #define BSF_DYNAMIC 0x8000
1707
1708 flagword flags;
1709
1710 /* A pointer to the section to which this symbol is
1711 relative. This will always be non NULL, there are special
1712 sections for undefined and absolute symbols. */
1713 struct sec *section;
1714
1715 /* Back end special data. */
1716 union
1717 {
1718 PTR p;
1719 bfd_vma i;
1720 } udata;
1721
1722 } asymbol;
1723 #define bfd_get_symtab_upper_bound(abfd) \
1724 BFD_SEND (abfd, _bfd_get_symtab_upper_bound, (abfd))
1725 boolean
1726 bfd_is_local_label PARAMS ((bfd *abfd, asymbol *sym));
1727
1728 #define bfd_is_local_label(abfd, sym) \
1729 BFD_SEND (abfd, _bfd_is_local_label,(abfd, sym))
1730 #define bfd_canonicalize_symtab(abfd, location) \
1731 BFD_SEND (abfd, _bfd_canonicalize_symtab,\
1732 (abfd, location))
1733 boolean
1734 bfd_set_symtab PARAMS ((bfd *abfd, asymbol **location, unsigned int count));
1735
1736 void
1737 bfd_print_symbol_vandf PARAMS ((PTR file, asymbol *symbol));
1738
1739 #define bfd_make_empty_symbol(abfd) \
1740 BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd))
1741 #define bfd_make_debug_symbol(abfd,ptr,size) \
1742 BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size))
1743 int
1744 bfd_decode_symclass PARAMS ((asymbol *symbol));
1745
1746 void
1747 bfd_symbol_info PARAMS ((asymbol *symbol, symbol_info *ret));
1748
1749 boolean
1750 bfd_copy_private_symbol_data PARAMS ((bfd *ibfd, asymbol *isym, bfd *obfd, asymbol *osym));
1751
1752 #define bfd_copy_private_symbol_data(ibfd, isymbol, obfd, osymbol) \
1753 BFD_SEND (ibfd, _bfd_copy_private_symbol_data, \
1754 (ibfd, isymbol, obfd, osymbol))
1755 struct _bfd
1756 {
1757 /* The filename the application opened the BFD with. */
1758 CONST char *filename;
1759
1760 /* A pointer to the target jump table. */
1761 const struct bfd_target *xvec;
1762
1763 /* To avoid dragging too many header files into every file that
1764 includes `<<bfd.h>>', IOSTREAM has been declared as a "char
1765 *", and MTIME as a "long". Their correct types, to which they
1766 are cast when used, are "FILE *" and "time_t". The iostream
1767 is the result of an fopen on the filename. */
1768 char *iostream;
1769
1770 /* Is the file descriptor being cached? That is, can it be closed as
1771 needed, and re-opened when accessed later? */
1772
1773 boolean cacheable;
1774
1775 /* Marks whether there was a default target specified when the
1776 BFD was opened. This is used to select which matching algorithm
1777 to use to choose the back end. */
1778
1779 boolean target_defaulted;
1780
1781 /* The caching routines use these to maintain a
1782 least-recently-used list of BFDs */
1783
1784 struct _bfd *lru_prev, *lru_next;
1785
1786 /* When a file is closed by the caching routines, BFD retains
1787 state information on the file here: */
1788
1789 file_ptr where;
1790
1791 /* and here: (``once'' means at least once) */
1792
1793 boolean opened_once;
1794
1795 /* Set if we have a locally maintained mtime value, rather than
1796 getting it from the file each time: */
1797
1798 boolean mtime_set;
1799
1800 /* File modified time, if mtime_set is true: */
1801
1802 long mtime;
1803
1804 /* Reserved for an unimplemented file locking extension.*/
1805
1806 int ifd;
1807
1808 /* The format which belongs to the BFD. (object, core, etc.) */
1809
1810 bfd_format format;
1811
1812 /* The direction the BFD was opened with*/
1813
1814 enum bfd_direction {no_direction = 0,
1815 read_direction = 1,
1816 write_direction = 2,
1817 both_direction = 3} direction;
1818
1819 /* Format_specific flags*/
1820
1821 flagword flags;
1822
1823 /* Currently my_archive is tested before adding origin to
1824 anything. I believe that this can become always an add of
1825 origin, with origin set to 0 for non archive files. */
1826
1827 file_ptr origin;
1828
1829 /* Remember when output has begun, to stop strange things
1830 from happening. */
1831 boolean output_has_begun;
1832
1833 /* Pointer to linked list of sections*/
1834 struct sec *sections;
1835
1836 /* The number of sections */
1837 unsigned int section_count;
1838
1839 /* Stuff only useful for object files:
1840 The start address. */
1841 bfd_vma start_address;
1842
1843 /* Used for input and output*/
1844 unsigned int symcount;
1845
1846 /* Symbol table for output BFD (with symcount entries) */
1847 struct symbol_cache_entry **outsymbols;
1848
1849 /* Pointer to structure which contains architecture information*/
1850 const struct bfd_arch_info *arch_info;
1851
1852 /* Stuff only useful for archives:*/
1853 PTR arelt_data;
1854 struct _bfd *my_archive; /* The containing archive BFD. */
1855 struct _bfd *next; /* The next BFD in the archive. */
1856 struct _bfd *archive_head; /* The first BFD in the archive. */
1857 boolean has_armap;
1858
1859 /* A chain of BFD structures involved in a link. */
1860 struct _bfd *link_next;
1861
1862 /* A field used by _bfd_generic_link_add_archive_symbols. This will
1863 be used only for archive elements. */
1864 int archive_pass;
1865
1866 /* Used by the back end to hold private data. */
1867
1868 union
1869 {
1870 struct aout_data_struct *aout_data;
1871 struct artdata *aout_ar_data;
1872 struct _oasys_data *oasys_obj_data;
1873 struct _oasys_ar_data *oasys_ar_data;
1874 struct coff_tdata *coff_obj_data;
1875 struct pe_tdata *pe_obj_data;
1876 struct xcoff_tdata *xcoff_obj_data;
1877 struct ecoff_tdata *ecoff_obj_data;
1878 struct ieee_data_struct *ieee_data;
1879 struct ieee_ar_data_struct *ieee_ar_data;
1880 struct srec_data_struct *srec_data;
1881 struct tekhex_data_struct *tekhex_data;
1882 struct elf_obj_tdata *elf_obj_data;
1883 struct nlm_obj_tdata *nlm_obj_data;
1884 struct bout_data_struct *bout_data;
1885 struct sun_core_struct *sun_core_data;
1886 struct trad_core_struct *trad_core_data;
1887 struct som_data_struct *som_data;
1888 struct hpux_core_struct *hpux_core_data;
1889 struct hppabsd_core_struct *hppabsd_core_data;
1890 struct sgi_core_struct *sgi_core_data;
1891 struct lynx_core_struct *lynx_core_data;
1892 struct osf_core_struct *osf_core_data;
1893 struct cisco_core_struct *cisco_core_data;
1894 struct versados_data_struct *versados_data;
1895 PTR any;
1896 } tdata;
1897
1898 /* Used by the application to hold private data*/
1899 PTR usrdata;
1900
1901 /* Where all the allocated stuff under this BFD goes */
1902 struct obstack memory;
1903 };
1904
1905 typedef enum bfd_error
1906 {
1907 bfd_error_no_error = 0,
1908 bfd_error_system_call,
1909 bfd_error_invalid_target,
1910 bfd_error_wrong_format,
1911 bfd_error_invalid_operation,
1912 bfd_error_no_memory,
1913 bfd_error_no_symbols,
1914 bfd_error_no_armap,
1915 bfd_error_no_more_archived_files,
1916 bfd_error_malformed_archive,
1917 bfd_error_file_not_recognized,
1918 bfd_error_file_ambiguously_recognized,
1919 bfd_error_no_contents,
1920 bfd_error_nonrepresentable_section,
1921 bfd_error_no_debug_section,
1922 bfd_error_bad_value,
1923 bfd_error_file_truncated,
1924 bfd_error_file_too_big,
1925 bfd_error_invalid_error_code
1926 } bfd_error_type;
1927
1928 bfd_error_type
1929 bfd_get_error PARAMS ((void));
1930
1931 void
1932 bfd_set_error PARAMS ((bfd_error_type error_tag));
1933
1934 CONST char *
1935 bfd_errmsg PARAMS ((bfd_error_type error_tag));
1936
1937 void
1938 bfd_perror PARAMS ((CONST char *message));
1939
1940 typedef void (*bfd_error_handler_type) PARAMS ((const char *, ...));
1941
1942 bfd_error_handler_type
1943 bfd_set_error_handler PARAMS ((bfd_error_handler_type));
1944
1945 void
1946 bfd_set_error_program_name PARAMS ((const char *));
1947
1948 long
1949 bfd_get_reloc_upper_bound PARAMS ((bfd *abfd, asection *sect));
1950
1951 long
1952 bfd_canonicalize_reloc
1953 PARAMS ((bfd *abfd,
1954 asection *sec,
1955 arelent **loc,
1956 asymbol **syms));
1957
1958 void
1959 bfd_set_reloc
1960 PARAMS ((bfd *abfd, asection *sec, arelent **rel, unsigned int count)
1961
1962 );
1963
1964 boolean
1965 bfd_set_file_flags PARAMS ((bfd *abfd, flagword flags));
1966
1967 boolean
1968 bfd_set_start_address PARAMS ((bfd *abfd, bfd_vma vma));
1969
1970 long
1971 bfd_get_mtime PARAMS ((bfd *abfd));
1972
1973 long
1974 bfd_get_size PARAMS ((bfd *abfd));
1975
1976 int
1977 bfd_get_gp_size PARAMS ((bfd *abfd));
1978
1979 void
1980 bfd_set_gp_size PARAMS ((bfd *abfd, int i));
1981
1982 bfd_vma
1983 bfd_scan_vma PARAMS ((CONST char *string, CONST char **end, int base));
1984
1985 boolean
1986 bfd_copy_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd));
1987
1988 #define bfd_copy_private_bfd_data(ibfd, obfd) \
1989 BFD_SEND (ibfd, _bfd_copy_private_bfd_data, \
1990 (ibfd, obfd))
1991 boolean
1992 bfd_merge_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd));
1993
1994 #define bfd_merge_private_bfd_data(ibfd, obfd) \
1995 BFD_SEND (ibfd, _bfd_merge_private_bfd_data, \
1996 (ibfd, obfd))
1997 boolean
1998 bfd_set_private_flags PARAMS ((bfd *abfd, flagword flags));
1999
2000 #define bfd_set_private_flags(abfd, flags) \
2001 BFD_SEND (abfd, _bfd_set_private_flags, \
2002 (abfd, flags))
2003 #define bfd_sizeof_headers(abfd, reloc) \
2004 BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc))
2005
2006 #define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
2007 BFD_SEND (abfd, _bfd_find_nearest_line, (abfd, sec, syms, off, file, func, line))
2008
2009 /* Do these three do anything useful at all, for any back end? */
2010 #define bfd_debug_info_start(abfd) \
2011 BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
2012
2013 #define bfd_debug_info_end(abfd) \
2014 BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
2015
2016 #define bfd_debug_info_accumulate(abfd, section) \
2017 BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
2018
2019
2020 #define bfd_stat_arch_elt(abfd, stat) \
2021 BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
2022
2023 #define bfd_update_armap_timestamp(abfd) \
2024 BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))
2025
2026 #define bfd_set_arch_mach(abfd, arch, mach)\
2027 BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
2028
2029 #define bfd_relax_section(abfd, section, link_info, again) \
2030 BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
2031
2032 #define bfd_link_hash_table_create(abfd) \
2033 BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
2034
2035 #define bfd_link_add_symbols(abfd, info) \
2036 BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
2037
2038 #define bfd_final_link(abfd, info) \
2039 BFD_SEND (abfd, _bfd_final_link, (abfd, info))
2040
2041 #define bfd_free_cached_info(abfd) \
2042 BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
2043
2044 #define bfd_get_dynamic_symtab_upper_bound(abfd) \
2045 BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
2046
2047 #define bfd_print_private_bfd_data(abfd, file)\
2048 BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file))
2049
2050 #define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
2051 BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
2052
2053 #define bfd_get_dynamic_reloc_upper_bound(abfd) \
2054 BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
2055
2056 #define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
2057 BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
2058
2059 extern bfd_byte *bfd_get_relocated_section_contents
2060 PARAMS ((bfd *, struct bfd_link_info *,
2061 struct bfd_link_order *, bfd_byte *,
2062 boolean, asymbol **));
2063
2064 symindex
2065 bfd_get_next_mapent PARAMS ((bfd *abfd, symindex previous, carsym **sym));
2066
2067 boolean
2068 bfd_set_archive_head PARAMS ((bfd *output, bfd *new_head));
2069
2070 bfd *
2071 bfd_get_elt_at_index PARAMS ((bfd *archive, int index));
2072
2073 bfd *
2074 bfd_openr_next_archived_file PARAMS ((bfd *archive, bfd *previous));
2075
2076 CONST char *
2077 bfd_core_file_failing_command PARAMS ((bfd *abfd));
2078
2079 int
2080 bfd_core_file_failing_signal PARAMS ((bfd *abfd));
2081
2082 boolean
2083 core_file_matches_executable_p
2084 PARAMS ((bfd *core_bfd, bfd *exec_bfd));
2085
2086 #define BFD_SEND(bfd, message, arglist) \
2087 ((*((bfd)->xvec->message)) arglist)
2088
2089 #ifdef DEBUG_BFD_SEND
2090 #undef BFD_SEND
2091 #define BFD_SEND(bfd, message, arglist) \
2092 (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
2093 ((*((bfd)->xvec->message)) arglist) : \
2094 (bfd_assert (__FILE__,__LINE__), NULL))
2095 #endif
2096 #define BFD_SEND_FMT(bfd, message, arglist) \
2097 (((bfd)->xvec->message[(int)((bfd)->format)]) arglist)
2098
2099 #ifdef DEBUG_BFD_SEND
2100 #undef BFD_SEND_FMT
2101 #define BFD_SEND_FMT(bfd, message, arglist) \
2102 (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
2103 (((bfd)->xvec->message[(int)((bfd)->format)]) arglist) : \
2104 (bfd_assert (__FILE__,__LINE__), NULL))
2105 #endif
2106 enum bfd_flavour {
2107 bfd_target_unknown_flavour,
2108 bfd_target_aout_flavour,
2109 bfd_target_coff_flavour,
2110 bfd_target_ecoff_flavour,
2111 bfd_target_elf_flavour,
2112 bfd_target_ieee_flavour,
2113 bfd_target_nlm_flavour,
2114 bfd_target_oasys_flavour,
2115 bfd_target_tekhex_flavour,
2116 bfd_target_srec_flavour,
2117 bfd_target_som_flavour,
2118 bfd_target_os9k_flavour,
2119 bfd_target_versados_flavour,
2120 bfd_target_msdos_flavour
2121 };
2122
2123 /* Forward declaration. */
2124 typedef struct bfd_link_info _bfd_link_info;
2125
2126 typedef struct bfd_target
2127 {
2128 char *name;
2129 enum bfd_flavour flavour;
2130 boolean byteorder_big_p;
2131 boolean header_byteorder_big_p;
2132 flagword object_flags;
2133 flagword section_flags;
2134 char symbol_leading_char;
2135 char ar_pad_char;
2136 unsigned short ar_max_namelen;
2137 bfd_vma (*bfd_getx64) PARAMS ((const bfd_byte *));
2138 bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((const bfd_byte *));
2139 void (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *));
2140 bfd_vma (*bfd_getx32) PARAMS ((const bfd_byte *));
2141 bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((const bfd_byte *));
2142 void (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *));
2143 bfd_vma (*bfd_getx16) PARAMS ((const bfd_byte *));
2144 bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((const bfd_byte *));
2145 void (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *));
2146 bfd_vma (*bfd_h_getx64) PARAMS ((const bfd_byte *));
2147 bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((const bfd_byte *));
2148 void (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *));
2149 bfd_vma (*bfd_h_getx32) PARAMS ((const bfd_byte *));
2150 bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((const bfd_byte *));
2151 void (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *));
2152 bfd_vma (*bfd_h_getx16) PARAMS ((const bfd_byte *));
2153 bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((const bfd_byte *));
2154 void (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *));
2155 const struct bfd_target *(*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *));
2156 boolean (*_bfd_set_format[bfd_type_end]) PARAMS ((bfd *));
2157 boolean (*_bfd_write_contents[bfd_type_end]) PARAMS ((bfd *));
2158
2159 /* Generic entry points. */
2160 #define BFD_JUMP_TABLE_GENERIC(NAME)\
2161 CAT(NAME,_close_and_cleanup),\
2162 CAT(NAME,_bfd_free_cached_info),\
2163 CAT(NAME,_new_section_hook),\
2164 CAT(NAME,_get_section_contents)
2165 /* Called when the BFD is being closed to do any necessary cleanup. */
2166 boolean (*_close_and_cleanup) PARAMS ((bfd *));
2167 /* Ask the BFD to free all cached information. */
2168 boolean (*_bfd_free_cached_info) PARAMS ((bfd *));
2169 /* Called when a new section is created. */
2170 boolean (*_new_section_hook) PARAMS ((bfd *, sec_ptr));
2171 /* Read the contents of a section. */
2172 boolean (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
2173 file_ptr, bfd_size_type));
2174
2175 /* Entry points to copy private data. */
2176 #define BFD_JUMP_TABLE_COPY(NAME)\
2177 CAT(NAME,_bfd_copy_private_bfd_data),\
2178 CAT(NAME,_bfd_merge_private_bfd_data),\
2179 CAT(NAME,_bfd_copy_private_section_data),\
2180 CAT(NAME,_bfd_copy_private_symbol_data),\
2181 CAT(NAME,_bfd_set_private_flags),\
2182 CAT(NAME,_bfd_print_private_bfd_data)\
2183 /* Called to copy BFD general private data from one object file
2184 to another. */
2185 boolean (*_bfd_copy_private_bfd_data) PARAMS ((bfd *, bfd *));
2186 /* Called to merge BFD general private data from one object file
2187 to a common output file when linking. */
2188 boolean (*_bfd_merge_private_bfd_data) PARAMS ((bfd *, bfd *));
2189 /* Called to copy BFD private section data from one object file
2190 to another. */
2191 boolean (*_bfd_copy_private_section_data) PARAMS ((bfd *, sec_ptr,
2192 bfd *, sec_ptr));
2193 /* Called to copy BFD private symbol data from one symbol
2194 to another. */
2195 boolean (*_bfd_copy_private_symbol_data) PARAMS ((bfd *, asymbol *,
2196 bfd *, asymbol *));
2197 /* Called to set private backend flags */
2198 boolean (*_bfd_set_private_flags) PARAMS ((bfd *, flagword));
2199
2200 /* Called to print private BFD data */
2201 boolean (*_bfd_print_private_bfd_data) PARAMS ((bfd *, void *));
2202
2203 /* Core file entry points. */
2204 #define BFD_JUMP_TABLE_CORE(NAME)\
2205 CAT(NAME,_core_file_failing_command),\
2206 CAT(NAME,_core_file_failing_signal),\
2207 CAT(NAME,_core_file_matches_executable_p)
2208 char * (*_core_file_failing_command) PARAMS ((bfd *));
2209 int (*_core_file_failing_signal) PARAMS ((bfd *));
2210 boolean (*_core_file_matches_executable_p) PARAMS ((bfd *, bfd *));
2211
2212 /* Archive entry points. */
2213 #define BFD_JUMP_TABLE_ARCHIVE(NAME)\
2214 CAT(NAME,_slurp_armap),\
2215 CAT(NAME,_slurp_extended_name_table),\
2216 CAT(NAME,_construct_extended_name_table),\
2217 CAT(NAME,_truncate_arname),\
2218 CAT(NAME,_write_armap),\
2219 CAT(NAME,_read_ar_hdr),\
2220 CAT(NAME,_openr_next_archived_file),\
2221 CAT(NAME,_generic_stat_arch_elt),\
2222 CAT(NAME,_update_armap_timestamp)
2223 boolean (*_bfd_slurp_armap) PARAMS ((bfd *));
2224 boolean (*_bfd_slurp_extended_name_table) PARAMS ((bfd *));
2225 boolean (*_bfd_construct_extended_name_table)
2226 PARAMS ((bfd *, char **, bfd_size_type *, const char **));
2227 void (*_bfd_truncate_arname) PARAMS ((bfd *, CONST char *, char *));
2228 boolean (*write_armap) PARAMS ((bfd *arch,
2229 unsigned int elength,
2230 struct orl *map,
2231 unsigned int orl_count,
2232 int stridx));
2233 PTR (*_bfd_read_ar_hdr_fn) PARAMS ((bfd *));
2234 bfd * (*openr_next_archived_file) PARAMS ((bfd *arch, bfd *prev));
2235 int (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *));
2236 boolean (*_bfd_update_armap_timestamp) PARAMS ((bfd *));
2237
2238 /* Entry points used for symbols. */
2239 #define BFD_JUMP_TABLE_SYMBOLS(NAME)\
2240 CAT(NAME,_get_symtab_upper_bound),\
2241 CAT(NAME,_get_symtab),\
2242 CAT(NAME,_make_empty_symbol),\
2243 CAT(NAME,_print_symbol),\
2244 CAT(NAME,_get_symbol_info),\
2245 CAT(NAME,_bfd_is_local_label),\
2246 CAT(NAME,_get_lineno),\
2247 CAT(NAME,_find_nearest_line),\
2248 CAT(NAME,_bfd_make_debug_symbol),\
2249 CAT(NAME,_read_minisymbols),\
2250 CAT(NAME,_minisymbol_to_symbol)
2251 long (*_bfd_get_symtab_upper_bound) PARAMS ((bfd *));
2252 long (*_bfd_canonicalize_symtab) PARAMS ((bfd *,
2253 struct symbol_cache_entry **));
2254 struct symbol_cache_entry *
2255 (*_bfd_make_empty_symbol) PARAMS ((bfd *));
2256 void (*_bfd_print_symbol) PARAMS ((bfd *, PTR,
2257 struct symbol_cache_entry *,
2258 bfd_print_symbol_type));
2259 #define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e))
2260 void (*_bfd_get_symbol_info) PARAMS ((bfd *,
2261 struct symbol_cache_entry *,
2262 symbol_info *));
2263 #define bfd_get_symbol_info(b,p,e) BFD_SEND(b, _bfd_get_symbol_info, (b,p,e))
2264 boolean (*_bfd_is_local_label) PARAMS ((bfd *, asymbol *));
2265
2266 alent * (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *));
2267 boolean (*_bfd_find_nearest_line) PARAMS ((bfd *abfd,
2268 struct sec *section, struct symbol_cache_entry **symbols,
2269 bfd_vma offset, CONST char **file, CONST char **func,
2270 unsigned int *line));
2271 /* Back-door to allow format-aware applications to create debug symbols
2272 while using BFD for everything else. Currently used by the assembler
2273 when creating COFF files. */
2274 asymbol * (*_bfd_make_debug_symbol) PARAMS ((
2275 bfd *abfd,
2276 void *ptr,
2277 unsigned long size));
2278 #define bfd_read_minisymbols(b, d, m, s) \
2279 BFD_SEND (b, _read_minisymbols, (b, d, m, s))
2280 long (*_read_minisymbols) PARAMS ((bfd *, boolean, PTR *,
2281 unsigned int *));
2282 #define bfd_minisymbol_to_symbol(b, d, m, f) \
2283 BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
2284 asymbol *(*_minisymbol_to_symbol) PARAMS ((bfd *, boolean, const PTR,
2285 asymbol *));
2286
2287 /* Routines for relocs. */
2288 #define BFD_JUMP_TABLE_RELOCS(NAME)\
2289 CAT(NAME,_get_reloc_upper_bound),\
2290 CAT(NAME,_canonicalize_reloc),\
2291 CAT(NAME,_bfd_reloc_type_lookup)
2292 long (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr));
2293 long (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **,
2294 struct symbol_cache_entry **));
2295 /* See documentation on reloc types. */
2296 reloc_howto_type *
2297 (*reloc_type_lookup) PARAMS ((bfd *abfd,
2298 bfd_reloc_code_real_type code));
2299
2300 /* Routines used when writing an object file. */
2301 #define BFD_JUMP_TABLE_WRITE(NAME)\
2302 CAT(NAME,_set_arch_mach),\
2303 CAT(NAME,_set_section_contents)
2304 boolean (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture,
2305 unsigned long));
2306 boolean (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
2307 file_ptr, bfd_size_type));
2308
2309 /* Routines used by the linker. */
2310 #define BFD_JUMP_TABLE_LINK(NAME)\
2311 CAT(NAME,_sizeof_headers),\
2312 CAT(NAME,_bfd_get_relocated_section_contents),\
2313 CAT(NAME,_bfd_relax_section),\
2314 CAT(NAME,_bfd_link_hash_table_create),\
2315 CAT(NAME,_bfd_link_add_symbols),\
2316 CAT(NAME,_bfd_final_link),\
2317 CAT(NAME,_bfd_link_split_section)
2318 int (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean));
2319 bfd_byte * (*_bfd_get_relocated_section_contents) PARAMS ((bfd *,
2320 struct bfd_link_info *, struct bfd_link_order *,
2321 bfd_byte *data, boolean relocateable,
2322 struct symbol_cache_entry **));
2323
2324 boolean (*_bfd_relax_section) PARAMS ((bfd *, struct sec *,
2325 struct bfd_link_info *, boolean *again));
2326
2327 /* Create a hash table for the linker. Different backends store
2328 different information in this table. */
2329 struct bfd_link_hash_table *(*_bfd_link_hash_table_create) PARAMS ((bfd *));
2330
2331 /* Add symbols from this object file into the hash table. */
2332 boolean (*_bfd_link_add_symbols) PARAMS ((bfd *, struct bfd_link_info *));
2333
2334 /* Do a link based on the link_order structures attached to each
2335 section of the BFD. */
2336 boolean (*_bfd_final_link) PARAMS ((bfd *, struct bfd_link_info *));
2337
2338 /* Should this section be split up into smaller pieces during linking. */
2339 boolean (*_bfd_link_split_section) PARAMS ((bfd *, struct sec *));
2340
2341 /* Routines to handle dynamic symbols and relocs. */
2342 #define BFD_JUMP_TABLE_DYNAMIC(NAME)\
2343 CAT(NAME,_get_dynamic_symtab_upper_bound),\
2344 CAT(NAME,_canonicalize_dynamic_symtab),\
2345 CAT(NAME,_get_dynamic_reloc_upper_bound),\
2346 CAT(NAME,_canonicalize_dynamic_reloc)
2347 /* Get the amount of memory required to hold the dynamic symbols. */
2348 long (*_bfd_get_dynamic_symtab_upper_bound) PARAMS ((bfd *));
2349 /* Read in the dynamic symbols. */
2350 long (*_bfd_canonicalize_dynamic_symtab)
2351 PARAMS ((bfd *, struct symbol_cache_entry **));
2352 /* Get the amount of memory required to hold the dynamic relocs. */
2353 long (*_bfd_get_dynamic_reloc_upper_bound) PARAMS ((bfd *));
2354 /* Read in the dynamic relocs. */
2355 long (*_bfd_canonicalize_dynamic_reloc)
2356 PARAMS ((bfd *, arelent **, struct symbol_cache_entry **));
2357
2358 PTR backend_data;
2359 } bfd_target;
2360 const bfd_target *
2361 bfd_find_target PARAMS ((CONST char *target_name, bfd *abfd));
2362
2363 const char **
2364 bfd_target_list PARAMS ((void));
2365
2366 boolean
2367 bfd_check_format PARAMS ((bfd *abfd, bfd_format format));
2368
2369 boolean
2370 bfd_check_format_matches PARAMS ((bfd *abfd, bfd_format format, char ***matching));
2371
2372 boolean
2373 bfd_set_format PARAMS ((bfd *abfd, bfd_format format));
2374
2375 CONST char *
2376 bfd_format_string PARAMS ((bfd_format format));
2377
2378 #ifdef __cplusplus
2379 }
2380 #endif
2381 #endif
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