db4576d99d1940a85c4afdf307b6311c89f74264
[deliverable/binutils-gdb.git] / bfd / bfd-in2.h
1 /* Main header file for the bfd library -- portable access to object files.
2 Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000
3 Free Software Foundation, Inc.
4 Contributed by Cygnus Support.
5
6 ** NOTE: bfd.h and bfd-in2.h are GENERATED files. Don't change them;
7 ** instead, change bfd-in.h or the other BFD source files processed to
8 ** generate these files.
9
10 This file is part of BFD, the Binary File Descriptor library.
11
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 2 of the License, or
15 (at your option) any later version.
16
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
21
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software
24 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
25
26 /* bfd.h -- The only header file required by users of the bfd library
27
28 The bfd.h file is generated from bfd-in.h and various .c files; if you
29 change it, your changes will probably be lost.
30
31 All the prototypes and definitions following the comment "THE FOLLOWING
32 IS EXTRACTED FROM THE SOURCE" are extracted from the source files for
33 BFD. If you change it, someone oneday will extract it from the source
34 again, and your changes will be lost. To save yourself from this bind,
35 change the definitions in the source in the bfd directory. Type "make
36 docs" and then "make headers" in that directory, and magically this file
37 will change to reflect your changes.
38
39 If you don't have the tools to perform the extraction, then you are
40 safe from someone on your system trampling over your header files.
41 You should still maintain the equivalence between the source and this
42 file though; every change you make to the .c file should be reflected
43 here. */
44
45 #ifndef __BFD_H_SEEN__
46 #define __BFD_H_SEEN__
47
48 #ifdef __cplusplus
49 extern "C" {
50 #endif
51
52 #include "ansidecl.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 #if @BFD_HOST_64_BIT_DEFINED@
59 #define BFD_HOST_64_BIT @BFD_HOST_64_BIT@
60 #define BFD_HOST_U_64_BIT @BFD_HOST_U_64_BIT@
61 #endif
62
63 #if BFD_ARCH_SIZE >= 64
64 #define BFD64
65 #endif
66
67 #ifndef INLINE
68 #if __GNUC__ >= 2
69 #define INLINE __inline__
70 #else
71 #define INLINE
72 #endif
73 #endif
74
75 /* forward declaration */
76 typedef struct _bfd bfd;
77
78 /* To squelch erroneous compiler warnings ("illegal pointer
79 combination") from the SVR3 compiler, we would like to typedef
80 boolean to int (it doesn't like functions which return boolean.
81 Making sure they are never implicitly declared to return int
82 doesn't seem to help). But this file is not configured based on
83 the host. */
84 /* General rules: functions which are boolean return true on success
85 and false on failure (unless they're a predicate). -- bfd.doc */
86 /* I'm sure this is going to break something and someone is going to
87 force me to change it. */
88 /* typedef enum boolean {false, true} boolean; */
89 /* Yup, SVR4 has a "typedef enum boolean" in <sys/types.h> -fnf */
90 /* It gets worse if the host also defines a true/false enum... -sts */
91 /* And even worse if your compiler has built-in boolean types... -law */
92 #if defined (__GNUG__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 6))
93 #define TRUE_FALSE_ALREADY_DEFINED
94 #endif
95 #ifdef MPW
96 /* Pre-emptive strike - get the file with the enum. */
97 #include <Types.h>
98 #define TRUE_FALSE_ALREADY_DEFINED
99 #endif /* MPW */
100 #ifndef TRUE_FALSE_ALREADY_DEFINED
101 typedef enum bfd_boolean {false, true} boolean;
102 #define BFD_TRUE_FALSE
103 #else
104 /* Use enum names that will appear nowhere else. */
105 typedef enum bfd_boolean {bfd_fffalse, bfd_tttrue} boolean;
106 #endif
107
108 /* A pointer to a position in a file. */
109 /* FIXME: This should be using off_t from <sys/types.h>.
110 For now, try to avoid breaking stuff by not including <sys/types.h> here.
111 This will break on systems with 64-bit file offsets (e.g. 4.4BSD).
112 Probably the best long-term answer is to avoid using file_ptr AND off_t
113 in this header file, and to handle this in the BFD implementation
114 rather than in its interface. */
115 /* typedef off_t file_ptr; */
116 typedef long int file_ptr;
117
118 /* Support for different sizes of target format ints and addresses.
119 If the type `long' is at least 64 bits, BFD_HOST_64BIT_LONG will be
120 set to 1 above. Otherwise, if gcc is being used, this code will
121 use gcc's "long long" type. Otherwise, BFD_HOST_64_BIT must be
122 defined above. */
123
124 #ifndef BFD_HOST_64_BIT
125 # if BFD_HOST_64BIT_LONG
126 # define BFD_HOST_64_BIT long
127 # define BFD_HOST_U_64_BIT unsigned long
128 # else
129 # ifdef __GNUC__
130 # if __GNUC__ >= 2
131 # define BFD_HOST_64_BIT long long
132 # define BFD_HOST_U_64_BIT unsigned long long
133 # endif /* __GNUC__ >= 2 */
134 # endif /* ! defined (__GNUC__) */
135 # endif /* ! BFD_HOST_64BIT_LONG */
136 #endif /* ! defined (BFD_HOST_64_BIT) */
137
138 #ifdef BFD64
139
140 #ifndef BFD_HOST_64_BIT
141 #error No 64 bit integer type available
142 #endif /* ! defined (BFD_HOST_64_BIT) */
143
144 typedef BFD_HOST_U_64_BIT bfd_vma;
145 typedef BFD_HOST_64_BIT bfd_signed_vma;
146 typedef BFD_HOST_U_64_BIT bfd_size_type;
147 typedef BFD_HOST_U_64_BIT symvalue;
148
149 #ifndef fprintf_vma
150 #if BFD_HOST_64BIT_LONG
151 #define sprintf_vma(s,x) sprintf (s, "%016lx", x)
152 #define fprintf_vma(f,x) fprintf (f, "%016lx", x)
153 #else
154 #define _bfd_int64_low(x) ((unsigned long) (((x) & 0xffffffff)))
155 #define _bfd_int64_high(x) ((unsigned long) (((x) >> 32) & 0xffffffff))
156 #define fprintf_vma(s,x) \
157 fprintf ((s), "%08lx%08lx", _bfd_int64_high (x), _bfd_int64_low (x))
158 #define sprintf_vma(s,x) \
159 sprintf ((s), "%08lx%08lx", _bfd_int64_high (x), _bfd_int64_low (x))
160 #endif
161 #endif
162
163 #else /* not BFD64 */
164
165 /* Represent a target address. Also used as a generic unsigned type
166 which is guaranteed to be big enough to hold any arithmetic types
167 we need to deal with. */
168 typedef unsigned long bfd_vma;
169
170 /* A generic signed type which is guaranteed to be big enough to hold any
171 arithmetic types we need to deal with. Can be assumed to be compatible
172 with bfd_vma in the same way that signed and unsigned ints are compatible
173 (as parameters, in assignment, etc). */
174 typedef long bfd_signed_vma;
175
176 typedef unsigned long symvalue;
177 typedef unsigned long bfd_size_type;
178
179 /* Print a bfd_vma x on stream s. */
180 #define fprintf_vma(s,x) fprintf (s, "%08lx", x)
181 #define sprintf_vma(s,x) sprintf (s, "%08lx", x)
182
183 #endif /* not BFD64 */
184
185 #define printf_vma(x) fprintf_vma(stdout,x)
186
187 typedef unsigned int flagword; /* 32 bits of flags */
188 typedef unsigned char bfd_byte;
189 \f
190 /** File formats */
191
192 typedef enum bfd_format {
193 bfd_unknown = 0, /* file format is unknown */
194 bfd_object, /* linker/assember/compiler output */
195 bfd_archive, /* object archive file */
196 bfd_core, /* core dump */
197 bfd_type_end} /* marks the end; don't use it! */
198 bfd_format;
199
200 /* Values that may appear in the flags field of a BFD. These also
201 appear in the object_flags field of the bfd_target structure, where
202 they indicate the set of flags used by that backend (not all flags
203 are meaningful for all object file formats) (FIXME: at the moment,
204 the object_flags values have mostly just been copied from backend
205 to another, and are not necessarily correct). */
206
207 /* No flags. */
208 #define BFD_NO_FLAGS 0x00
209
210 /* BFD contains relocation entries. */
211 #define HAS_RELOC 0x01
212
213 /* BFD is directly executable. */
214 #define EXEC_P 0x02
215
216 /* BFD has line number information (basically used for F_LNNO in a
217 COFF header). */
218 #define HAS_LINENO 0x04
219
220 /* BFD has debugging information. */
221 #define HAS_DEBUG 0x08
222
223 /* BFD has symbols. */
224 #define HAS_SYMS 0x10
225
226 /* BFD has local symbols (basically used for F_LSYMS in a COFF
227 header). */
228 #define HAS_LOCALS 0x20
229
230 /* BFD is a dynamic object. */
231 #define DYNAMIC 0x40
232
233 /* Text section is write protected (if D_PAGED is not set, this is
234 like an a.out NMAGIC file) (the linker sets this by default, but
235 clears it for -r or -N). */
236 #define WP_TEXT 0x80
237
238 /* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the
239 linker sets this by default, but clears it for -r or -n or -N). */
240 #define D_PAGED 0x100
241
242 /* BFD is relaxable (this means that bfd_relax_section may be able to
243 do something) (sometimes bfd_relax_section can do something even if
244 this is not set). */
245 #define BFD_IS_RELAXABLE 0x200
246
247 /* This may be set before writing out a BFD to request using a
248 traditional format. For example, this is used to request that when
249 writing out an a.out object the symbols not be hashed to eliminate
250 duplicates. */
251 #define BFD_TRADITIONAL_FORMAT 0x400
252
253 /* This flag indicates that the BFD contents are actually cached in
254 memory. If this is set, iostream points to a bfd_in_memory struct. */
255 #define BFD_IN_MEMORY 0x800
256 \f
257 /* symbols and relocation */
258
259 /* A count of carsyms (canonical archive symbols). */
260 typedef unsigned long symindex;
261
262 /* How to perform a relocation. */
263 typedef const struct reloc_howto_struct reloc_howto_type;
264
265 #define BFD_NO_MORE_SYMBOLS ((symindex) ~0)
266
267 /* General purpose part of a symbol X;
268 target specific parts are in libcoff.h, libaout.h, etc. */
269
270 #define bfd_get_section(x) ((x)->section)
271 #define bfd_get_output_section(x) ((x)->section->output_section)
272 #define bfd_set_section(x,y) ((x)->section) = (y)
273 #define bfd_asymbol_base(x) ((x)->section->vma)
274 #define bfd_asymbol_value(x) (bfd_asymbol_base(x) + (x)->value)
275 #define bfd_asymbol_name(x) ((x)->name)
276 /*Perhaps future: #define bfd_asymbol_bfd(x) ((x)->section->owner)*/
277 #define bfd_asymbol_bfd(x) ((x)->the_bfd)
278 #define bfd_asymbol_flavour(x) (bfd_asymbol_bfd(x)->xvec->flavour)
279
280 /* A canonical archive symbol. */
281 /* This is a type pun with struct ranlib on purpose! */
282 typedef struct carsym {
283 char *name;
284 file_ptr file_offset; /* look here to find the file */
285 } carsym; /* to make these you call a carsymogen */
286
287 /* Used in generating armaps (archive tables of contents).
288 Perhaps just a forward definition would do? */
289 struct orl { /* output ranlib */
290 char **name; /* symbol name */
291 file_ptr pos; /* bfd* or file position */
292 int namidx; /* index into string table */
293 };
294 \f
295 /* Linenumber stuff */
296 typedef struct lineno_cache_entry {
297 unsigned int line_number; /* Linenumber from start of function*/
298 union {
299 struct symbol_cache_entry *sym; /* Function name */
300 unsigned long offset; /* Offset into section */
301 } u;
302 } alent;
303 \f
304 /* object and core file sections */
305
306 #define align_power(addr, align) \
307 ( ((addr) + ((1<<(align))-1)) & (-1 << (align)))
308
309 typedef struct sec *sec_ptr;
310
311 #define bfd_get_section_name(bfd, ptr) ((ptr)->name + 0)
312 #define bfd_get_section_vma(bfd, ptr) ((ptr)->vma + 0)
313 #define bfd_get_section_alignment(bfd, ptr) ((ptr)->alignment_power + 0)
314 #define bfd_section_name(bfd, ptr) ((ptr)->name)
315 #define bfd_section_size(bfd, ptr) (bfd_get_section_size_before_reloc(ptr))
316 #define bfd_section_vma(bfd, ptr) ((ptr)->vma)
317 #define bfd_section_lma(bfd, ptr) ((ptr)->lma)
318 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power)
319 #define bfd_get_section_flags(bfd, ptr) ((ptr)->flags + 0)
320 #define bfd_get_section_userdata(bfd, ptr) ((ptr)->userdata)
321
322 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0)
323
324 #define bfd_set_section_vma(bfd, ptr, val) (((ptr)->vma = (ptr)->lma= (val)), ((ptr)->user_set_vma = (boolean)true), true)
325 #define bfd_set_section_alignment(bfd, ptr, val) (((ptr)->alignment_power = (val)),true)
326 #define bfd_set_section_userdata(bfd, ptr, val) (((ptr)->userdata = (val)),true)
327
328 typedef struct stat stat_type;
329 \f
330 typedef enum bfd_print_symbol
331 {
332 bfd_print_symbol_name,
333 bfd_print_symbol_more,
334 bfd_print_symbol_all
335 } bfd_print_symbol_type;
336
337 /* Information about a symbol that nm needs. */
338
339 typedef struct _symbol_info
340 {
341 symvalue value;
342 char type;
343 CONST char *name; /* Symbol name. */
344 unsigned char stab_type; /* Stab type. */
345 char stab_other; /* Stab other. */
346 short stab_desc; /* Stab desc. */
347 CONST char *stab_name; /* String for stab type. */
348 } symbol_info;
349
350 /* Get the name of a stabs type code. */
351
352 extern const char *bfd_get_stab_name PARAMS ((int));
353 \f
354 /* Hash table routines. There is no way to free up a hash table. */
355
356 /* An element in the hash table. Most uses will actually use a larger
357 structure, and an instance of this will be the first field. */
358
359 struct bfd_hash_entry
360 {
361 /* Next entry for this hash code. */
362 struct bfd_hash_entry *next;
363 /* String being hashed. */
364 const char *string;
365 /* Hash code. This is the full hash code, not the index into the
366 table. */
367 unsigned long hash;
368 };
369
370 /* A hash table. */
371
372 struct bfd_hash_table
373 {
374 /* The hash array. */
375 struct bfd_hash_entry **table;
376 /* The number of slots in the hash table. */
377 unsigned int size;
378 /* A function used to create new elements in the hash table. The
379 first entry is itself a pointer to an element. When this
380 function is first invoked, this pointer will be NULL. However,
381 having the pointer permits a hierarchy of method functions to be
382 built each of which calls the function in the superclass. Thus
383 each function should be written to allocate a new block of memory
384 only if the argument is NULL. */
385 struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
386 struct bfd_hash_table *,
387 const char *));
388 /* An objalloc for this hash table. This is a struct objalloc *,
389 but we use PTR to avoid requiring the inclusion of objalloc.h. */
390 PTR memory;
391 };
392
393 /* Initialize a hash table. */
394 extern boolean bfd_hash_table_init
395 PARAMS ((struct bfd_hash_table *,
396 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
397 struct bfd_hash_table *,
398 const char *)));
399
400 /* Initialize a hash table specifying a size. */
401 extern boolean bfd_hash_table_init_n
402 PARAMS ((struct bfd_hash_table *,
403 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
404 struct bfd_hash_table *,
405 const char *),
406 unsigned int size));
407
408 /* Free up a hash table. */
409 extern void bfd_hash_table_free PARAMS ((struct bfd_hash_table *));
410
411 /* Look up a string in a hash table. If CREATE is true, a new entry
412 will be created for this string if one does not already exist. The
413 COPY argument must be true if this routine should copy the string
414 into newly allocated memory when adding an entry. */
415 extern struct bfd_hash_entry *bfd_hash_lookup
416 PARAMS ((struct bfd_hash_table *, const char *, boolean create,
417 boolean copy));
418
419 /* Replace an entry in a hash table. */
420 extern void bfd_hash_replace
421 PARAMS ((struct bfd_hash_table *, struct bfd_hash_entry *old,
422 struct bfd_hash_entry *nw));
423
424 /* Base method for creating a hash table entry. */
425 extern struct bfd_hash_entry *bfd_hash_newfunc
426 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *,
427 const char *));
428
429 /* Grab some space for a hash table entry. */
430 extern PTR bfd_hash_allocate PARAMS ((struct bfd_hash_table *,
431 unsigned int));
432
433 /* Traverse a hash table in a random order, calling a function on each
434 element. If the function returns false, the traversal stops. The
435 INFO argument is passed to the function. */
436 extern void bfd_hash_traverse PARAMS ((struct bfd_hash_table *,
437 boolean (*) (struct bfd_hash_entry *,
438 PTR),
439 PTR info));
440 \f
441 /* Semi-portable string concatenation in cpp.
442 The CAT4 hack is to avoid a problem with some strict ANSI C preprocessors.
443 The problem is, "32_" is not a valid preprocessing token, and we don't
444 want extra underscores (e.g., "nlm_32_"). The XCAT2 macro will cause the
445 inner CAT macros to be evaluated first, producing still-valid pp-tokens.
446 Then the final concatenation can be done. (Sigh.) */
447 #ifndef CAT
448 #ifdef SABER
449 #define CAT(a,b) a##b
450 #define CAT3(a,b,c) a##b##c
451 #define CAT4(a,b,c,d) a##b##c##d
452 #else
453 #if defined(__STDC__) || defined(ALMOST_STDC)
454 #define CAT(a,b) a##b
455 #define CAT3(a,b,c) a##b##c
456 #define XCAT2(a,b) CAT(a,b)
457 #define CAT4(a,b,c,d) XCAT2(CAT(a,b),CAT(c,d))
458 #else
459 #define CAT(a,b) a/**/b
460 #define CAT3(a,b,c) a/**/b/**/c
461 #define CAT4(a,b,c,d) a/**/b/**/c/**/d
462 #endif
463 #endif
464 #endif
465
466 #define COFF_SWAP_TABLE (PTR) &bfd_coff_std_swap_table
467 \f
468 /* User program access to BFD facilities */
469
470 /* Direct I/O routines, for programs which know more about the object
471 file than BFD does. Use higher level routines if possible. */
472
473 extern bfd_size_type bfd_read
474 PARAMS ((PTR, bfd_size_type size, bfd_size_type nitems, bfd *abfd));
475 extern bfd_size_type bfd_write
476 PARAMS ((const PTR, bfd_size_type size, bfd_size_type nitems, bfd *abfd));
477 extern int bfd_seek PARAMS ((bfd *abfd, file_ptr fp, int direction));
478 extern long bfd_tell PARAMS ((bfd *abfd));
479 extern int bfd_flush PARAMS ((bfd *abfd));
480 extern int bfd_stat PARAMS ((bfd *abfd, struct stat *));
481
482 /* Cast from const char * to char * so that caller can assign to
483 a char * without a warning. */
484 #define bfd_get_filename(abfd) ((char *) (abfd)->filename)
485 #define bfd_get_cacheable(abfd) ((abfd)->cacheable)
486 #define bfd_get_format(abfd) ((abfd)->format)
487 #define bfd_get_target(abfd) ((abfd)->xvec->name)
488 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour)
489 #define bfd_family_coff(abfd) \
490 (bfd_get_flavour (abfd) == bfd_target_coff_flavour || \
491 bfd_get_flavour (abfd) == bfd_target_xcoff_flavour)
492 #define bfd_big_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG)
493 #define bfd_little_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_LITTLE)
494 #define bfd_header_big_endian(abfd) \
495 ((abfd)->xvec->header_byteorder == BFD_ENDIAN_BIG)
496 #define bfd_header_little_endian(abfd) \
497 ((abfd)->xvec->header_byteorder == BFD_ENDIAN_LITTLE)
498 #define bfd_get_file_flags(abfd) ((abfd)->flags)
499 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
500 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
501 #define bfd_my_archive(abfd) ((abfd)->my_archive)
502 #define bfd_has_map(abfd) ((abfd)->has_armap)
503
504 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
505 #define bfd_usrdata(abfd) ((abfd)->usrdata)
506
507 #define bfd_get_start_address(abfd) ((abfd)->start_address)
508 #define bfd_get_symcount(abfd) ((abfd)->symcount)
509 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
510 #define bfd_count_sections(abfd) ((abfd)->section_count)
511
512 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
513
514 #define bfd_set_cacheable(abfd,bool) (((abfd)->cacheable = (boolean) (bool)), true)
515
516 extern boolean bfd_record_phdr
517 PARAMS ((bfd *, unsigned long, boolean, flagword, boolean, bfd_vma,
518 boolean, boolean, unsigned int, struct sec **));
519
520 /* Byte swapping routines. */
521
522 bfd_vma bfd_getb64 PARAMS ((const unsigned char *));
523 bfd_vma bfd_getl64 PARAMS ((const unsigned char *));
524 bfd_signed_vma bfd_getb_signed_64 PARAMS ((const unsigned char *));
525 bfd_signed_vma bfd_getl_signed_64 PARAMS ((const unsigned char *));
526 bfd_vma bfd_getb32 PARAMS ((const unsigned char *));
527 bfd_vma bfd_getl32 PARAMS ((const unsigned char *));
528 bfd_signed_vma bfd_getb_signed_32 PARAMS ((const unsigned char *));
529 bfd_signed_vma bfd_getl_signed_32 PARAMS ((const unsigned char *));
530 bfd_vma bfd_getb16 PARAMS ((const unsigned char *));
531 bfd_vma bfd_getl16 PARAMS ((const unsigned char *));
532 bfd_signed_vma bfd_getb_signed_16 PARAMS ((const unsigned char *));
533 bfd_signed_vma bfd_getl_signed_16 PARAMS ((const unsigned char *));
534 void bfd_putb64 PARAMS ((bfd_vma, unsigned char *));
535 void bfd_putl64 PARAMS ((bfd_vma, unsigned char *));
536 void bfd_putb32 PARAMS ((bfd_vma, unsigned char *));
537 void bfd_putl32 PARAMS ((bfd_vma, unsigned char *));
538 void bfd_putb16 PARAMS ((bfd_vma, unsigned char *));
539 void bfd_putl16 PARAMS ((bfd_vma, unsigned char *));
540
541 /* Byte swapping routines which take size and endiannes as arguments. */
542
543 bfd_vma bfd_get_bits PARAMS ((bfd_byte *, int, boolean));
544 void bfd_put_bits PARAMS ((bfd_vma, bfd_byte *, int, boolean));
545 \f
546 /* Externally visible ECOFF routines. */
547
548 #if defined(__STDC__) || defined(ALMOST_STDC)
549 struct ecoff_debug_info;
550 struct ecoff_debug_swap;
551 struct ecoff_extr;
552 struct symbol_cache_entry;
553 struct bfd_link_info;
554 struct bfd_link_hash_entry;
555 struct bfd_elf_version_tree;
556 #endif
557 extern bfd_vma bfd_ecoff_get_gp_value PARAMS ((bfd * abfd));
558 extern boolean bfd_ecoff_set_gp_value PARAMS ((bfd *abfd, bfd_vma gp_value));
559 extern boolean bfd_ecoff_set_regmasks
560 PARAMS ((bfd *abfd, unsigned long gprmask, unsigned long fprmask,
561 unsigned long *cprmask));
562 extern PTR bfd_ecoff_debug_init
563 PARAMS ((bfd *output_bfd, struct ecoff_debug_info *output_debug,
564 const struct ecoff_debug_swap *output_swap,
565 struct bfd_link_info *));
566 extern void bfd_ecoff_debug_free
567 PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
568 const struct ecoff_debug_swap *output_swap,
569 struct bfd_link_info *));
570 extern boolean bfd_ecoff_debug_accumulate
571 PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
572 const struct ecoff_debug_swap *output_swap,
573 bfd *input_bfd, struct ecoff_debug_info *input_debug,
574 const struct ecoff_debug_swap *input_swap,
575 struct bfd_link_info *));
576 extern boolean bfd_ecoff_debug_accumulate_other
577 PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
578 const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
579 struct bfd_link_info *));
580 extern boolean bfd_ecoff_debug_externals
581 PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
582 const struct ecoff_debug_swap *swap,
583 boolean relocateable,
584 boolean (*get_extr) (struct symbol_cache_entry *,
585 struct ecoff_extr *),
586 void (*set_index) (struct symbol_cache_entry *,
587 bfd_size_type)));
588 extern boolean bfd_ecoff_debug_one_external
589 PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
590 const struct ecoff_debug_swap *swap,
591 const char *name, struct ecoff_extr *esym));
592 extern bfd_size_type bfd_ecoff_debug_size
593 PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
594 const struct ecoff_debug_swap *swap));
595 extern boolean bfd_ecoff_write_debug
596 PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
597 const struct ecoff_debug_swap *swap, file_ptr where));
598 extern boolean bfd_ecoff_write_accumulated_debug
599 PARAMS ((PTR handle, bfd *abfd, struct ecoff_debug_info *debug,
600 const struct ecoff_debug_swap *swap,
601 struct bfd_link_info *info, file_ptr where));
602 extern boolean bfd_mips_ecoff_create_embedded_relocs
603 PARAMS ((bfd *, struct bfd_link_info *, struct sec *, struct sec *,
604 char **));
605
606 /* Externally visible ELF routines. */
607
608 struct bfd_link_needed_list
609 {
610 struct bfd_link_needed_list *next;
611 bfd *by;
612 const char *name;
613 };
614
615 extern boolean bfd_elf32_record_link_assignment
616 PARAMS ((bfd *, struct bfd_link_info *, const char *, boolean));
617 extern boolean bfd_elf64_record_link_assignment
618 PARAMS ((bfd *, struct bfd_link_info *, const char *, boolean));
619 extern struct bfd_link_needed_list *bfd_elf_get_needed_list
620 PARAMS ((bfd *, struct bfd_link_info *));
621 extern boolean bfd_elf_get_bfd_needed_list
622 PARAMS ((bfd *, struct bfd_link_needed_list **));
623 extern boolean bfd_elf32_size_dynamic_sections
624 PARAMS ((bfd *, const char *, const char *, boolean, const char *,
625 const char * const *, struct bfd_link_info *, struct sec **,
626 struct bfd_elf_version_tree *));
627 extern boolean bfd_elf64_size_dynamic_sections
628 PARAMS ((bfd *, const char *, const char *, boolean, const char *,
629 const char * const *, struct bfd_link_info *, struct sec **,
630 struct bfd_elf_version_tree *));
631 extern void bfd_elf_set_dt_needed_name PARAMS ((bfd *, const char *));
632 extern void bfd_elf_set_dt_needed_soname PARAMS ((bfd *, const char *));
633 extern const char *bfd_elf_get_dt_soname PARAMS ((bfd *));
634 extern struct bfd_link_needed_list *bfd_elf_get_runpath_list
635 PARAMS ((bfd *, struct bfd_link_info *));
636
637 /* Return an upper bound on the number of bytes required to store a
638 copy of ABFD's program header table entries. Return -1 if an error
639 occurs; bfd_get_error will return an appropriate code. */
640 extern long bfd_get_elf_phdr_upper_bound PARAMS ((bfd *abfd));
641
642 /* Copy ABFD's program header table entries to *PHDRS. The entries
643 will be stored as an array of Elf_Internal_Phdr structures, as
644 defined in include/elf/internal.h. To find out how large the
645 buffer needs to be, call bfd_get_elf_phdr_upper_bound.
646
647 Return the number of program header table entries read, or -1 if an
648 error occurs; bfd_get_error will return an appropriate code. */
649 extern int bfd_get_elf_phdrs PARAMS ((bfd *abfd, void *phdrs));
650
651 /* Return the arch_size field of an elf bfd, or -1 if not elf. */
652 extern int bfd_get_arch_size PARAMS ((bfd *));
653
654 /* Return true if address "naturally" sign extends, or -1 if not elf. */
655 extern int bfd_get_sign_extend_vma PARAMS ((bfd *));
656
657 extern boolean bfd_m68k_elf32_create_embedded_relocs
658 PARAMS ((bfd *, struct bfd_link_info *, struct sec *, struct sec *,
659 char **));
660
661 /* SunOS shared library support routines for the linker. */
662
663 extern struct bfd_link_needed_list *bfd_sunos_get_needed_list
664 PARAMS ((bfd *, struct bfd_link_info *));
665 extern boolean bfd_sunos_record_link_assignment
666 PARAMS ((bfd *, struct bfd_link_info *, const char *));
667 extern boolean bfd_sunos_size_dynamic_sections
668 PARAMS ((bfd *, struct bfd_link_info *, struct sec **, struct sec **,
669 struct sec **));
670
671 /* Linux shared library support routines for the linker. */
672
673 extern boolean bfd_i386linux_size_dynamic_sections
674 PARAMS ((bfd *, struct bfd_link_info *));
675 extern boolean bfd_m68klinux_size_dynamic_sections
676 PARAMS ((bfd *, struct bfd_link_info *));
677 extern boolean bfd_sparclinux_size_dynamic_sections
678 PARAMS ((bfd *, struct bfd_link_info *));
679
680 /* mmap hacks */
681
682 struct _bfd_window_internal;
683 typedef struct _bfd_window_internal bfd_window_internal;
684
685 typedef struct _bfd_window {
686 /* What the user asked for. */
687 PTR data;
688 bfd_size_type size;
689 /* The actual window used by BFD. Small user-requested read-only
690 regions sharing a page may share a single window into the object
691 file. Read-write versions shouldn't until I've fixed things to
692 keep track of which portions have been claimed by the
693 application; don't want to give the same region back when the
694 application wants two writable copies! */
695 struct _bfd_window_internal *i;
696 } bfd_window;
697
698 extern void bfd_init_window PARAMS ((bfd_window *));
699 extern void bfd_free_window PARAMS ((bfd_window *));
700 extern boolean bfd_get_file_window
701 PARAMS ((bfd *, file_ptr, bfd_size_type, bfd_window *, boolean));
702
703 /* XCOFF support routines for the linker. */
704
705 extern boolean bfd_xcoff_link_record_set
706 PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *,
707 bfd_size_type));
708 extern boolean bfd_xcoff_import_symbol
709 PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *,
710 bfd_vma, const char *, const char *, const char *));
711 extern boolean bfd_xcoff_export_symbol
712 PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *,
713 boolean));
714 extern boolean bfd_xcoff_link_count_reloc
715 PARAMS ((bfd *, struct bfd_link_info *, const char *));
716 extern boolean bfd_xcoff_record_link_assignment
717 PARAMS ((bfd *, struct bfd_link_info *, const char *));
718 extern boolean bfd_xcoff_size_dynamic_sections
719 PARAMS ((bfd *, struct bfd_link_info *, const char *, const char *,
720 unsigned long, unsigned long, unsigned long, boolean,
721 int, boolean, boolean, struct sec **));
722
723 /* Externally visible COFF routines. */
724
725 #if defined(__STDC__) || defined(ALMOST_STDC)
726 struct internal_syment;
727 union internal_auxent;
728 #endif
729
730 extern boolean bfd_coff_get_syment
731 PARAMS ((bfd *, struct symbol_cache_entry *, struct internal_syment *));
732
733 extern boolean bfd_coff_get_auxent
734 PARAMS ((bfd *, struct symbol_cache_entry *, int, union internal_auxent *));
735
736 extern boolean bfd_coff_set_symbol_class
737 PARAMS ((bfd *, struct symbol_cache_entry *, unsigned int));
738
739 extern boolean bfd_m68k_coff_create_embedded_relocs
740 PARAMS ((bfd *, struct bfd_link_info *, struct sec *, struct sec *,
741 char **));
742
743 /* ARM Interworking support. Called from linker. */
744 extern boolean bfd_arm_allocate_interworking_sections
745 PARAMS ((struct bfd_link_info *));
746
747 extern boolean bfd_arm_process_before_allocation
748 PARAMS ((bfd *, struct bfd_link_info *, int));
749
750 extern boolean bfd_arm_get_bfd_for_interworking
751 PARAMS ((bfd *, struct bfd_link_info *));
752
753 /* PE ARM Interworking support. Called from linker. */
754 extern boolean bfd_arm_pe_allocate_interworking_sections
755 PARAMS ((struct bfd_link_info *));
756
757 extern boolean bfd_arm_pe_process_before_allocation
758 PARAMS ((bfd *, struct bfd_link_info *, int));
759
760 extern boolean bfd_arm_pe_get_bfd_for_interworking
761 PARAMS ((bfd *, struct bfd_link_info *));
762
763 /* ELF ARM Interworking support. Called from linker. */
764 extern boolean bfd_elf32_arm_allocate_interworking_sections
765 PARAMS ((struct bfd_link_info *));
766
767 extern boolean bfd_elf32_arm_process_before_allocation
768 PARAMS ((bfd *, struct bfd_link_info *, int));
769
770 extern boolean bfd_elf32_arm_get_bfd_for_interworking
771 PARAMS ((bfd *, struct bfd_link_info *));
772
773 /* TI COFF load page support. */
774 extern void bfd_ticoff_set_section_load_page
775 PARAMS ((struct sec *, int));
776
777 extern int bfd_ticoff_get_section_load_page
778 PARAMS ((struct sec *));
779
780 /* And more from the source. */
781 void
782 bfd_init PARAMS ((void));
783
784 bfd *
785 bfd_openr PARAMS ((CONST char *filename, CONST char *target));
786
787 bfd *
788 bfd_fdopenr PARAMS ((CONST char *filename, CONST char *target, int fd));
789
790 bfd *
791 bfd_openstreamr PARAMS ((const char *, const char *, PTR));
792
793 bfd *
794 bfd_openw PARAMS ((CONST char *filename, CONST char *target));
795
796 boolean
797 bfd_close PARAMS ((bfd *abfd));
798
799 boolean
800 bfd_close_all_done PARAMS ((bfd *));
801
802 bfd *
803 bfd_create PARAMS ((CONST char *filename, bfd *templ));
804
805 boolean
806 bfd_make_writable PARAMS ((bfd *abfd));
807
808 boolean
809 bfd_make_readable PARAMS ((bfd *abfd));
810
811
812 /* Byte swapping macros for user section data. */
813
814 #define bfd_put_8(abfd, val, ptr) \
815 ((void) (*((unsigned char *) (ptr)) = (unsigned char) (val)))
816 #define bfd_put_signed_8 \
817 bfd_put_8
818 #define bfd_get_8(abfd, ptr) \
819 (*(unsigned char *) (ptr))
820 #define bfd_get_signed_8(abfd, ptr) \
821 ((*(unsigned char *) (ptr) ^ 0x80) - 0x80)
822
823 #define bfd_put_16(abfd, val, ptr) \
824 BFD_SEND(abfd, bfd_putx16, ((val),(ptr)))
825 #define bfd_put_signed_16 \
826 bfd_put_16
827 #define bfd_get_16(abfd, ptr) \
828 BFD_SEND(abfd, bfd_getx16, (ptr))
829 #define bfd_get_signed_16(abfd, ptr) \
830 BFD_SEND (abfd, bfd_getx_signed_16, (ptr))
831
832 #define bfd_put_32(abfd, val, ptr) \
833 BFD_SEND(abfd, bfd_putx32, ((val),(ptr)))
834 #define bfd_put_signed_32 \
835 bfd_put_32
836 #define bfd_get_32(abfd, ptr) \
837 BFD_SEND(abfd, bfd_getx32, (ptr))
838 #define bfd_get_signed_32(abfd, ptr) \
839 BFD_SEND(abfd, bfd_getx_signed_32, (ptr))
840
841 #define bfd_put_64(abfd, val, ptr) \
842 BFD_SEND(abfd, bfd_putx64, ((val), (ptr)))
843 #define bfd_put_signed_64 \
844 bfd_put_64
845 #define bfd_get_64(abfd, ptr) \
846 BFD_SEND(abfd, bfd_getx64, (ptr))
847 #define bfd_get_signed_64(abfd, ptr) \
848 BFD_SEND(abfd, bfd_getx_signed_64, (ptr))
849
850 #define bfd_get(bits, abfd, ptr) \
851 ((bits) == 8 ? bfd_get_8 (abfd, ptr) \
852 : (bits) == 16 ? bfd_get_16 (abfd, ptr) \
853 : (bits) == 32 ? bfd_get_32 (abfd, ptr) \
854 : (bits) == 64 ? bfd_get_64 (abfd, ptr) \
855 : (abort (), (bfd_vma) - 1))
856
857 #define bfd_put(bits, abfd, val, ptr) \
858 ((bits) == 8 ? bfd_put_8 (abfd, val, ptr) \
859 : (bits) == 16 ? bfd_put_16 (abfd, val, ptr) \
860 : (bits) == 32 ? bfd_put_32 (abfd, val, ptr) \
861 : (bits) == 64 ? bfd_put_64 (abfd, val, ptr) \
862 : (abort (), (void) 0))
863
864
865 /* Byte swapping macros for file header data. */
866
867 #define bfd_h_put_8(abfd, val, ptr) \
868 bfd_put_8 (abfd, val, ptr)
869 #define bfd_h_put_signed_8(abfd, val, ptr) \
870 bfd_put_8 (abfd, val, ptr)
871 #define bfd_h_get_8(abfd, ptr) \
872 bfd_get_8 (abfd, ptr)
873 #define bfd_h_get_signed_8(abfd, ptr) \
874 bfd_get_signed_8 (abfd, ptr)
875
876 #define bfd_h_put_16(abfd, val, ptr) \
877 BFD_SEND(abfd, bfd_h_putx16,(val,ptr))
878 #define bfd_h_put_signed_16 \
879 bfd_h_put_16
880 #define bfd_h_get_16(abfd, ptr) \
881 BFD_SEND(abfd, bfd_h_getx16,(ptr))
882 #define bfd_h_get_signed_16(abfd, ptr) \
883 BFD_SEND(abfd, bfd_h_getx_signed_16, (ptr))
884
885 #define bfd_h_put_32(abfd, val, ptr) \
886 BFD_SEND(abfd, bfd_h_putx32,(val,ptr))
887 #define bfd_h_put_signed_32 \
888 bfd_h_put_32
889 #define bfd_h_get_32(abfd, ptr) \
890 BFD_SEND(abfd, bfd_h_getx32,(ptr))
891 #define bfd_h_get_signed_32(abfd, ptr) \
892 BFD_SEND(abfd, bfd_h_getx_signed_32, (ptr))
893
894 #define bfd_h_put_64(abfd, val, ptr) \
895 BFD_SEND(abfd, bfd_h_putx64,(val, ptr))
896 #define bfd_h_put_signed_64 \
897 bfd_h_put_64
898 #define bfd_h_get_64(abfd, ptr) \
899 BFD_SEND(abfd, bfd_h_getx64,(ptr))
900 #define bfd_h_get_signed_64(abfd, ptr) \
901 BFD_SEND(abfd, bfd_h_getx_signed_64, (ptr))
902
903 /* This structure is used for a comdat section, as in PE. A comdat
904 section is associated with a particular symbol. When the linker
905 sees a comdat section, it keeps only one of the sections with a
906 given name and associated with a given symbol. */
907
908 struct bfd_comdat_info
909 {
910 /* The name of the symbol associated with a comdat section. */
911 const char *name;
912
913 /* The local symbol table index of the symbol associated with a
914 comdat section. This is only meaningful to the object file format
915 specific code; it is not an index into the list returned by
916 bfd_canonicalize_symtab. */
917 long symbol;
918 };
919
920 typedef struct sec
921 {
922 /* The name of the section; the name isn't a copy, the pointer is
923 the same as that passed to bfd_make_section. */
924
925 const char *name;
926
927 /* A unique sequence number. */
928
929 int id;
930
931 /* Which section is it; 0..nth. */
932
933 int index;
934
935 /* The next section in the list belonging to the BFD, or NULL. */
936
937 struct sec *next;
938
939 /* The field flags contains attributes of the section. Some
940 flags are read in from the object file, and some are
941 synthesized from other information. */
942
943 flagword flags;
944
945 #define SEC_NO_FLAGS 0x000
946
947 /* Tells the OS to allocate space for this section when loading.
948 This is clear for a section containing debug information only. */
949 #define SEC_ALLOC 0x001
950
951 /* Tells the OS to load the section from the file when loading.
952 This is clear for a .bss section. */
953 #define SEC_LOAD 0x002
954
955 /* The section contains data still to be relocated, so there is
956 some relocation information too. */
957 #define SEC_RELOC 0x004
958
959 #if 0 /* Obsolete ? */
960 #define SEC_BALIGN 0x008
961 #endif
962
963 /* A signal to the OS that the section contains read only data. */
964 #define SEC_READONLY 0x010
965
966 /* The section contains code only. */
967 #define SEC_CODE 0x020
968
969 /* The section contains data only. */
970 #define SEC_DATA 0x040
971
972 /* The section will reside in ROM. */
973 #define SEC_ROM 0x080
974
975 /* The section contains constructor information. This section
976 type is used by the linker to create lists of constructors and
977 destructors used by <<g++>>. When a back end sees a symbol
978 which should be used in a constructor list, it creates a new
979 section for the type of name (e.g., <<__CTOR_LIST__>>), attaches
980 the symbol to it, and builds a relocation. To build the lists
981 of constructors, all the linker has to do is catenate all the
982 sections called <<__CTOR_LIST__>> and relocate the data
983 contained within - exactly the operations it would peform on
984 standard data. */
985 #define SEC_CONSTRUCTOR 0x100
986
987 /* The section is a constructor, and should be placed at the
988 end of the text, data, or bss section(?). */
989 #define SEC_CONSTRUCTOR_TEXT 0x1100
990 #define SEC_CONSTRUCTOR_DATA 0x2100
991 #define SEC_CONSTRUCTOR_BSS 0x3100
992
993 /* The section has contents - a data section could be
994 <<SEC_ALLOC>> | <<SEC_HAS_CONTENTS>>; a debug section could be
995 <<SEC_HAS_CONTENTS>> */
996 #define SEC_HAS_CONTENTS 0x200
997
998 /* An instruction to the linker to not output the section
999 even if it has information which would normally be written. */
1000 #define SEC_NEVER_LOAD 0x400
1001
1002 /* The section is a COFF shared library section. This flag is
1003 only for the linker. If this type of section appears in
1004 the input file, the linker must copy it to the output file
1005 without changing the vma or size. FIXME: Although this
1006 was originally intended to be general, it really is COFF
1007 specific (and the flag was renamed to indicate this). It
1008 might be cleaner to have some more general mechanism to
1009 allow the back end to control what the linker does with
1010 sections. */
1011 #define SEC_COFF_SHARED_LIBRARY 0x800
1012
1013 /* The section has GOT references. This flag is only for the
1014 linker, and is currently only used by the elf32-hppa back end.
1015 It will be set if global offset table references were detected
1016 in this section, which indicate to the linker that the section
1017 contains PIC code, and must be handled specially when doing a
1018 static link. */
1019 #define SEC_HAS_GOT_REF 0x4000
1020
1021 /* The section contains common symbols (symbols may be defined
1022 multiple times, the value of a symbol is the amount of
1023 space it requires, and the largest symbol value is the one
1024 used). Most targets have exactly one of these (which we
1025 translate to bfd_com_section_ptr), but ECOFF has two. */
1026 #define SEC_IS_COMMON 0x8000
1027
1028 /* The section contains only debugging information. For
1029 example, this is set for ELF .debug and .stab sections.
1030 strip tests this flag to see if a section can be
1031 discarded. */
1032 #define SEC_DEBUGGING 0x10000
1033
1034 /* The contents of this section are held in memory pointed to
1035 by the contents field. This is checked by bfd_get_section_contents,
1036 and the data is retrieved from memory if appropriate. */
1037 #define SEC_IN_MEMORY 0x20000
1038
1039 /* The contents of this section are to be excluded by the
1040 linker for executable and shared objects unless those
1041 objects are to be further relocated. */
1042 #define SEC_EXCLUDE 0x40000
1043
1044 /* The contents of this section are to be sorted by the
1045 based on the address specified in the associated symbol
1046 table. */
1047 #define SEC_SORT_ENTRIES 0x80000
1048
1049 /* When linking, duplicate sections of the same name should be
1050 discarded, rather than being combined into a single section as
1051 is usually done. This is similar to how common symbols are
1052 handled. See SEC_LINK_DUPLICATES below. */
1053 #define SEC_LINK_ONCE 0x100000
1054
1055 /* If SEC_LINK_ONCE is set, this bitfield describes how the linker
1056 should handle duplicate sections. */
1057 #define SEC_LINK_DUPLICATES 0x600000
1058
1059 /* This value for SEC_LINK_DUPLICATES means that duplicate
1060 sections with the same name should simply be discarded. */
1061 #define SEC_LINK_DUPLICATES_DISCARD 0x0
1062
1063 /* This value for SEC_LINK_DUPLICATES means that the linker
1064 should warn if there are any duplicate sections, although
1065 it should still only link one copy. */
1066 #define SEC_LINK_DUPLICATES_ONE_ONLY 0x200000
1067
1068 /* This value for SEC_LINK_DUPLICATES means that the linker
1069 should warn if any duplicate sections are a different size. */
1070 #define SEC_LINK_DUPLICATES_SAME_SIZE 0x400000
1071
1072 /* This value for SEC_LINK_DUPLICATES means that the linker
1073 should warn if any duplicate sections contain different
1074 contents. */
1075 #define SEC_LINK_DUPLICATES_SAME_CONTENTS 0x600000
1076
1077 /* This section was created by the linker as part of dynamic
1078 relocation or other arcane processing. It is skipped when
1079 going through the first-pass output, trusting that someone
1080 else up the line will take care of it later. */
1081 #define SEC_LINKER_CREATED 0x800000
1082
1083 /* This section should not be subject to garbage collection. */
1084 #define SEC_KEEP 0x1000000
1085
1086 /* This section contains "short" data, and should be placed
1087 "near" the GP. */
1088 #define SEC_SMALL_DATA 0x2000000
1089
1090 /* This section contains data which may be shared with other
1091 executables or shared objects. */
1092 #define SEC_SHARED 0x4000000
1093
1094 /* When a section with this flag is being linked, then if the size of
1095 the input section is less than a page, it should not cross a page
1096 boundary. If the size of the input section is one page or more, it
1097 should be aligned on a page boundary. */
1098 #define SEC_BLOCK 0x8000000
1099
1100 /* Conditionally link this section; do not link if there are no
1101 references found to any symbol in the section. */
1102 #define SEC_CLINK 0x10000000
1103
1104 /* End of section flags. */
1105
1106 /* Some internal packed boolean fields. */
1107
1108 /* See the vma field. */
1109 unsigned int user_set_vma : 1;
1110
1111 /* Whether relocations have been processed. */
1112 unsigned int reloc_done : 1;
1113
1114 /* A mark flag used by some of the linker backends. */
1115 unsigned int linker_mark : 1;
1116
1117 /* A mark flag used by some linker backends for garbage collection. */
1118 unsigned int gc_mark : 1;
1119
1120 /* Used by the ELF code to mark sections which have been allocated to segments. */
1121 unsigned int segment_mark : 1;
1122
1123 /* End of internal packed boolean fields. */
1124
1125 /* The virtual memory address of the section - where it will be
1126 at run time. The symbols are relocated against this. The
1127 user_set_vma flag is maintained by bfd; if it's not set, the
1128 backend can assign addresses (for example, in <<a.out>>, where
1129 the default address for <<.data>> is dependent on the specific
1130 target and various flags). */
1131
1132 bfd_vma vma;
1133
1134 /* The load address of the section - where it would be in a
1135 rom image; really only used for writing section header
1136 information. */
1137
1138 bfd_vma lma;
1139
1140 /* The size of the section in octets, as it will be output.
1141 Contains a value even if the section has no contents (e.g., the
1142 size of <<.bss>>). This will be filled in after relocation. */
1143
1144 bfd_size_type _cooked_size;
1145
1146 /* The original size on disk of the section, in octets. Normally this
1147 value is the same as the size, but if some relaxing has
1148 been done, then this value will be bigger. */
1149
1150 bfd_size_type _raw_size;
1151
1152 /* If this section is going to be output, then this value is the
1153 offset in *bytes* into the output section of the first byte in the
1154 input section (byte ==> smallest addressable unit on the
1155 target). In most cases, if this was going to start at the
1156 100th octet (8-bit quantity) in the output section, this value
1157 would be 100. However, if the target byte size is 16 bits
1158 (bfd_octets_per_byte is "2"), this value would be 50. */
1159
1160 bfd_vma output_offset;
1161
1162 /* The output section through which to map on output. */
1163
1164 struct sec *output_section;
1165
1166 /* The alignment requirement of the section, as an exponent of 2 -
1167 e.g., 3 aligns to 2^3 (or 8). */
1168
1169 unsigned int alignment_power;
1170
1171 /* If an input section, a pointer to a vector of relocation
1172 records for the data in this section. */
1173
1174 struct reloc_cache_entry *relocation;
1175
1176 /* If an output section, a pointer to a vector of pointers to
1177 relocation records for the data in this section. */
1178
1179 struct reloc_cache_entry **orelocation;
1180
1181 /* The number of relocation records in one of the above */
1182
1183 unsigned reloc_count;
1184
1185 /* Information below is back end specific - and not always used
1186 or updated. */
1187
1188 /* File position of section data. */
1189
1190 file_ptr filepos;
1191
1192 /* File position of relocation info. */
1193
1194 file_ptr rel_filepos;
1195
1196 /* File position of line data. */
1197
1198 file_ptr line_filepos;
1199
1200 /* Pointer to data for applications. */
1201
1202 PTR userdata;
1203
1204 /* If the SEC_IN_MEMORY flag is set, this points to the actual
1205 contents. */
1206 unsigned char *contents;
1207
1208 /* Attached line number information. */
1209
1210 alent *lineno;
1211
1212 /* Number of line number records. */
1213
1214 unsigned int lineno_count;
1215
1216 /* Optional information about a COMDAT entry; NULL if not COMDAT. */
1217
1218 struct bfd_comdat_info *comdat;
1219
1220 /* Points to the kept section if this section is a link-once section,
1221 and is discarded. */
1222 struct sec *kept_section;
1223
1224 /* When a section is being output, this value changes as more
1225 linenumbers are written out. */
1226
1227 file_ptr moving_line_filepos;
1228
1229 /* What the section number is in the target world. */
1230
1231 int target_index;
1232
1233 PTR used_by_bfd;
1234
1235 /* If this is a constructor section then here is a list of the
1236 relocations created to relocate items within it. */
1237
1238 struct relent_chain *constructor_chain;
1239
1240 /* The BFD which owns the section. */
1241
1242 bfd *owner;
1243
1244 /* A symbol which points at this section only */
1245 struct symbol_cache_entry *symbol;
1246 struct symbol_cache_entry **symbol_ptr_ptr;
1247
1248 struct bfd_link_order *link_order_head;
1249 struct bfd_link_order *link_order_tail;
1250 } asection ;
1251
1252 /* These sections are global, and are managed by BFD. The application
1253 and target back end are not permitted to change the values in
1254 these sections. New code should use the section_ptr macros rather
1255 than referring directly to the const sections. The const sections
1256 may eventually vanish. */
1257 #define BFD_ABS_SECTION_NAME "*ABS*"
1258 #define BFD_UND_SECTION_NAME "*UND*"
1259 #define BFD_COM_SECTION_NAME "*COM*"
1260 #define BFD_IND_SECTION_NAME "*IND*"
1261
1262 /* the absolute section */
1263 extern const asection bfd_abs_section;
1264 #define bfd_abs_section_ptr ((asection *) &bfd_abs_section)
1265 #define bfd_is_abs_section(sec) ((sec) == bfd_abs_section_ptr)
1266 /* Pointer to the undefined section */
1267 extern const asection bfd_und_section;
1268 #define bfd_und_section_ptr ((asection *) &bfd_und_section)
1269 #define bfd_is_und_section(sec) ((sec) == bfd_und_section_ptr)
1270 /* Pointer to the common section */
1271 extern const asection bfd_com_section;
1272 #define bfd_com_section_ptr ((asection *) &bfd_com_section)
1273 /* Pointer to the indirect section */
1274 extern const asection bfd_ind_section;
1275 #define bfd_ind_section_ptr ((asection *) &bfd_ind_section)
1276 #define bfd_is_ind_section(sec) ((sec) == bfd_ind_section_ptr)
1277
1278 extern const struct symbol_cache_entry * const bfd_abs_symbol;
1279 extern const struct symbol_cache_entry * const bfd_com_symbol;
1280 extern const struct symbol_cache_entry * const bfd_und_symbol;
1281 extern const struct symbol_cache_entry * const bfd_ind_symbol;
1282 #define bfd_get_section_size_before_reloc(section) \
1283 ((section)->reloc_done ? (abort (), (bfd_size_type) 1) \
1284 : (section)->_raw_size)
1285 #define bfd_get_section_size_after_reloc(section) \
1286 ((section)->reloc_done ? (section)->_cooked_size \
1287 : (abort (), (bfd_size_type) 1))
1288 asection *
1289 bfd_get_section_by_name PARAMS ((bfd *abfd, const char *name));
1290
1291 char *
1292 bfd_get_unique_section_name PARAMS ((bfd *abfd,
1293 const char *templat,
1294 int *count));
1295
1296 asection *
1297 bfd_make_section_old_way PARAMS ((bfd *abfd, const char *name));
1298
1299 asection *
1300 bfd_make_section_anyway PARAMS ((bfd *abfd, const char *name));
1301
1302 asection *
1303 bfd_make_section PARAMS ((bfd *, const char *name));
1304
1305 boolean
1306 bfd_set_section_flags PARAMS ((bfd *abfd, asection *sec, flagword flags));
1307
1308 void
1309 bfd_map_over_sections PARAMS ((bfd *abfd,
1310 void (*func) (bfd *abfd,
1311 asection *sect,
1312 PTR obj),
1313 PTR obj));
1314
1315 boolean
1316 bfd_set_section_size PARAMS ((bfd *abfd, asection *sec, bfd_size_type val));
1317
1318 boolean
1319 bfd_set_section_contents PARAMS ((bfd *abfd,
1320 asection *section,
1321 PTR data,
1322 file_ptr offset,
1323 bfd_size_type count));
1324
1325 boolean
1326 bfd_get_section_contents PARAMS ((bfd *abfd, asection *section, PTR location,
1327 file_ptr offset, bfd_size_type count));
1328
1329 boolean
1330 bfd_copy_private_section_data PARAMS ((bfd *ibfd, asection *isec, bfd *obfd, asection *osec));
1331
1332 #define bfd_copy_private_section_data(ibfd, isection, obfd, osection) \
1333 BFD_SEND (obfd, _bfd_copy_private_section_data, \
1334 (ibfd, isection, obfd, osection))
1335 void
1336 _bfd_strip_section_from_output PARAMS ((struct bfd_link_info *info, asection *section));
1337
1338 enum bfd_architecture
1339 {
1340 bfd_arch_unknown, /* File arch not known */
1341 bfd_arch_obscure, /* Arch known, not one of these */
1342 bfd_arch_m68k, /* Motorola 68xxx */
1343 #define bfd_mach_m68000 1
1344 #define bfd_mach_m68008 2
1345 #define bfd_mach_m68010 3
1346 #define bfd_mach_m68020 4
1347 #define bfd_mach_m68030 5
1348 #define bfd_mach_m68040 6
1349 #define bfd_mach_m68060 7
1350 #define bfd_mach_cpu32 8
1351 bfd_arch_vax, /* DEC Vax */
1352 bfd_arch_i960, /* Intel 960 */
1353 /* The order of the following is important.
1354 lower number indicates a machine type that
1355 only accepts a subset of the instructions
1356 available to machines with higher numbers.
1357 The exception is the "ca", which is
1358 incompatible with all other machines except
1359 "core". */
1360
1361 #define bfd_mach_i960_core 1
1362 #define bfd_mach_i960_ka_sa 2
1363 #define bfd_mach_i960_kb_sb 3
1364 #define bfd_mach_i960_mc 4
1365 #define bfd_mach_i960_xa 5
1366 #define bfd_mach_i960_ca 6
1367 #define bfd_mach_i960_jx 7
1368 #define bfd_mach_i960_hx 8
1369
1370 bfd_arch_a29k, /* AMD 29000 */
1371 bfd_arch_sparc, /* SPARC */
1372 #define bfd_mach_sparc 1
1373 /* The difference between v8plus and v9 is that v9 is a true 64 bit env. */
1374 #define bfd_mach_sparc_sparclet 2
1375 #define bfd_mach_sparc_sparclite 3
1376 #define bfd_mach_sparc_v8plus 4
1377 #define bfd_mach_sparc_v8plusa 5 /* with ultrasparc add'ns */
1378 #define bfd_mach_sparc_sparclite_le 6
1379 #define bfd_mach_sparc_v9 7
1380 #define bfd_mach_sparc_v9a 8 /* with ultrasparc add'ns */
1381 #define bfd_mach_sparc_v8plusb 9 /* with cheetah add'ns */
1382 #define bfd_mach_sparc_v9b 10 /* with cheetah add'ns */
1383 /* Nonzero if MACH has the v9 instruction set. */
1384 #define bfd_mach_sparc_v9_p(mach) \
1385 ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9b \
1386 && (mach) != bfd_mach_sparc_sparclite_le)
1387 bfd_arch_mips, /* MIPS Rxxxx */
1388 #define bfd_mach_mips3000 3000
1389 #define bfd_mach_mips3900 3900
1390 #define bfd_mach_mips4000 4000
1391 #define bfd_mach_mips4010 4010
1392 #define bfd_mach_mips4100 4100
1393 #define bfd_mach_mips4111 4111
1394 #define bfd_mach_mips4300 4300
1395 #define bfd_mach_mips4400 4400
1396 #define bfd_mach_mips4600 4600
1397 #define bfd_mach_mips4650 4650
1398 #define bfd_mach_mips5000 5000
1399 #define bfd_mach_mips6000 6000
1400 #define bfd_mach_mips8000 8000
1401 #define bfd_mach_mips10000 10000
1402 #define bfd_mach_mips16 16
1403 #define bfd_mach_mips32 32
1404 #define bfd_mach_mips32_4k 3204113 /* 32, 04, octal 'K' */
1405 #define bfd_mach_mips5 5
1406 #define bfd_mach_mips64 64
1407 #define bfd_mach_mips_sb1 12310201 /* octal 'SB', 01 */
1408 bfd_arch_i386, /* Intel 386 */
1409 #define bfd_mach_i386_i386 0
1410 #define bfd_mach_i386_i8086 1
1411 #define bfd_mach_i386_i386_intel_syntax 2
1412 #define bfd_mach_x86_64 3
1413 #define bfd_mach_x86_64_intel_syntax 4
1414 bfd_arch_we32k, /* AT&T WE32xxx */
1415 bfd_arch_tahoe, /* CCI/Harris Tahoe */
1416 bfd_arch_i860, /* Intel 860 */
1417 bfd_arch_i370, /* IBM 360/370 Mainframes */
1418 bfd_arch_romp, /* IBM ROMP PC/RT */
1419 bfd_arch_alliant, /* Alliant */
1420 bfd_arch_convex, /* Convex */
1421 bfd_arch_m88k, /* Motorola 88xxx */
1422 bfd_arch_pyramid, /* Pyramid Technology */
1423 bfd_arch_h8300, /* Hitachi H8/300 */
1424 #define bfd_mach_h8300 1
1425 #define bfd_mach_h8300h 2
1426 #define bfd_mach_h8300s 3
1427 bfd_arch_powerpc, /* PowerPC */
1428 #define bfd_mach_ppc 0
1429 #define bfd_mach_ppc_403 403
1430 #define bfd_mach_ppc_403gc 4030
1431 #define bfd_mach_ppc_505 505
1432 #define bfd_mach_ppc_601 601
1433 #define bfd_mach_ppc_602 602
1434 #define bfd_mach_ppc_603 603
1435 #define bfd_mach_ppc_ec603e 6031
1436 #define bfd_mach_ppc_604 604
1437 #define bfd_mach_ppc_620 620
1438 #define bfd_mach_ppc_630 630
1439 #define bfd_mach_ppc_750 750
1440 #define bfd_mach_ppc_860 860
1441 #define bfd_mach_ppc_a35 35
1442 #define bfd_mach_ppc_rs64ii 642
1443 #define bfd_mach_ppc_rs64iii 643
1444 #define bfd_mach_ppc_7400 7400
1445 bfd_arch_rs6000, /* IBM RS/6000 */
1446 #define bfd_mach_rs6k 0
1447 #define bfd_mach_rs6k_rs1 6001
1448 #define bfd_mach_rs6k_rsc 6003
1449 #define bfd_mach_rs6k_rs2 6002
1450 bfd_arch_hppa, /* HP PA RISC */
1451 bfd_arch_d10v, /* Mitsubishi D10V */
1452 #define bfd_mach_d10v 0
1453 #define bfd_mach_d10v_ts2 2
1454 #define bfd_mach_d10v_ts3 3
1455 bfd_arch_d30v, /* Mitsubishi D30V */
1456 bfd_arch_m68hc11, /* Motorola 68HC11 */
1457 bfd_arch_m68hc12, /* Motorola 68HC12 */
1458 bfd_arch_z8k, /* Zilog Z8000 */
1459 #define bfd_mach_z8001 1
1460 #define bfd_mach_z8002 2
1461 bfd_arch_h8500, /* Hitachi H8/500 */
1462 bfd_arch_sh, /* Hitachi SH */
1463 #define bfd_mach_sh 0
1464 #define bfd_mach_sh2 0x20
1465 #define bfd_mach_sh_dsp 0x2d
1466 #define bfd_mach_sh3 0x30
1467 #define bfd_mach_sh3_dsp 0x3d
1468 #define bfd_mach_sh3e 0x3e
1469 #define bfd_mach_sh4 0x40
1470 bfd_arch_alpha, /* Dec Alpha */
1471 #define bfd_mach_alpha_ev4 0x10
1472 #define bfd_mach_alpha_ev5 0x20
1473 #define bfd_mach_alpha_ev6 0x30
1474 bfd_arch_arm, /* Advanced Risc Machines ARM */
1475 #define bfd_mach_arm_2 1
1476 #define bfd_mach_arm_2a 2
1477 #define bfd_mach_arm_3 3
1478 #define bfd_mach_arm_3M 4
1479 #define bfd_mach_arm_4 5
1480 #define bfd_mach_arm_4T 6
1481 #define bfd_mach_arm_5 7
1482 #define bfd_mach_arm_5T 8
1483 #define bfd_mach_arm_5TE 9
1484 #define bfd_mach_arm_XScale 10
1485 bfd_arch_ns32k, /* National Semiconductors ns32000 */
1486 bfd_arch_w65, /* WDC 65816 */
1487 bfd_arch_tic30, /* Texas Instruments TMS320C30 */
1488 bfd_arch_tic54x, /* Texas Instruments TMS320C54X */
1489 bfd_arch_tic80, /* TI TMS320c80 (MVP) */
1490 bfd_arch_v850, /* NEC V850 */
1491 #define bfd_mach_v850 0
1492 #define bfd_mach_v850e 'E'
1493 #define bfd_mach_v850ea 'A'
1494 bfd_arch_arc, /* ARC Cores */
1495 #define bfd_mach_arc_5 0
1496 #define bfd_mach_arc_6 1
1497 #define bfd_mach_arc_7 2
1498 #define bfd_mach_arc_8 3
1499 bfd_arch_m32r, /* Mitsubishi M32R/D */
1500 #define bfd_mach_m32r 0 /* backwards compatibility */
1501 #define bfd_mach_m32rx 'x'
1502 bfd_arch_mn10200, /* Matsushita MN10200 */
1503 bfd_arch_mn10300, /* Matsushita MN10300 */
1504 #define bfd_mach_mn10300 300
1505 #define bfd_mach_am33 330
1506 bfd_arch_fr30,
1507 #define bfd_mach_fr30 0x46523330
1508 bfd_arch_mcore,
1509 bfd_arch_ia64, /* HP/Intel ia64 */
1510 #define bfd_mach_ia64_elf64 0
1511 #define bfd_mach_ia64_elf32 1
1512 bfd_arch_pj,
1513 bfd_arch_avr, /* Atmel AVR microcontrollers */
1514 #define bfd_mach_avr1 1
1515 #define bfd_mach_avr2 2
1516 #define bfd_mach_avr3 3
1517 #define bfd_mach_avr4 4
1518 #define bfd_mach_avr5 5
1519 bfd_arch_cris, /* Axis CRIS */
1520 bfd_arch_s390, /* IBM s390 */
1521 #define bfd_mach_s390_esa 0
1522 #define bfd_mach_s390_esame 1
1523 bfd_arch_last
1524 };
1525
1526 typedef struct bfd_arch_info
1527 {
1528 int bits_per_word;
1529 int bits_per_address;
1530 int bits_per_byte;
1531 enum bfd_architecture arch;
1532 unsigned long mach;
1533 const char *arch_name;
1534 const char *printable_name;
1535 unsigned int section_align_power;
1536 /* True if this is the default machine for the architecture. */
1537 boolean the_default;
1538 const struct bfd_arch_info * (*compatible)
1539 PARAMS ((const struct bfd_arch_info *a,
1540 const struct bfd_arch_info *b));
1541
1542 boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
1543
1544 const struct bfd_arch_info *next;
1545 } bfd_arch_info_type;
1546 const char *
1547 bfd_printable_name PARAMS ((bfd *abfd));
1548
1549 const bfd_arch_info_type *
1550 bfd_scan_arch PARAMS ((const char *string));
1551
1552 const char **
1553 bfd_arch_list PARAMS ((void));
1554
1555 const bfd_arch_info_type *
1556 bfd_arch_get_compatible PARAMS ((
1557 const bfd *abfd,
1558 const bfd *bbfd));
1559
1560 void
1561 bfd_set_arch_info PARAMS ((bfd *abfd, const bfd_arch_info_type *arg));
1562
1563 enum bfd_architecture
1564 bfd_get_arch PARAMS ((bfd *abfd));
1565
1566 unsigned long
1567 bfd_get_mach PARAMS ((bfd *abfd));
1568
1569 unsigned int
1570 bfd_arch_bits_per_byte PARAMS ((bfd *abfd));
1571
1572 unsigned int
1573 bfd_arch_bits_per_address PARAMS ((bfd *abfd));
1574
1575 const bfd_arch_info_type *
1576 bfd_get_arch_info PARAMS ((bfd *abfd));
1577
1578 const bfd_arch_info_type *
1579 bfd_lookup_arch PARAMS ((enum bfd_architecture
1580 arch,
1581 unsigned long machine));
1582
1583 const char *
1584 bfd_printable_arch_mach PARAMS ((enum bfd_architecture arch, unsigned long machine));
1585
1586 unsigned int
1587 bfd_octets_per_byte PARAMS ((bfd *abfd));
1588
1589 unsigned int
1590 bfd_arch_mach_octets_per_byte PARAMS ((enum bfd_architecture arch,
1591 unsigned long machine));
1592
1593 typedef enum bfd_reloc_status
1594 {
1595 /* No errors detected */
1596 bfd_reloc_ok,
1597
1598 /* The relocation was performed, but there was an overflow. */
1599 bfd_reloc_overflow,
1600
1601 /* The address to relocate was not within the section supplied. */
1602 bfd_reloc_outofrange,
1603
1604 /* Used by special functions */
1605 bfd_reloc_continue,
1606
1607 /* Unsupported relocation size requested. */
1608 bfd_reloc_notsupported,
1609
1610 /* Unused */
1611 bfd_reloc_other,
1612
1613 /* The symbol to relocate against was undefined. */
1614 bfd_reloc_undefined,
1615
1616 /* The relocation was performed, but may not be ok - presently
1617 generated only when linking i960 coff files with i960 b.out
1618 symbols. If this type is returned, the error_message argument
1619 to bfd_perform_relocation will be set. */
1620 bfd_reloc_dangerous
1621 }
1622 bfd_reloc_status_type;
1623
1624
1625 typedef struct reloc_cache_entry
1626 {
1627 /* A pointer into the canonical table of pointers */
1628 struct symbol_cache_entry **sym_ptr_ptr;
1629
1630 /* offset in section */
1631 bfd_size_type address;
1632
1633 /* addend for relocation value */
1634 bfd_vma addend;
1635
1636 /* Pointer to how to perform the required relocation */
1637 reloc_howto_type *howto;
1638
1639 } arelent;
1640 enum complain_overflow
1641 {
1642 /* Do not complain on overflow. */
1643 complain_overflow_dont,
1644
1645 /* Complain if the bitfield overflows, whether it is considered
1646 as signed or unsigned. */
1647 complain_overflow_bitfield,
1648
1649 /* Complain if the value overflows when considered as signed
1650 number. */
1651 complain_overflow_signed,
1652
1653 /* Complain if the value overflows when considered as an
1654 unsigned number. */
1655 complain_overflow_unsigned
1656 };
1657
1658 struct reloc_howto_struct
1659 {
1660 /* The type field has mainly a documentary use - the back end can
1661 do what it wants with it, though normally the back end's
1662 external idea of what a reloc number is stored
1663 in this field. For example, a PC relative word relocation
1664 in a coff environment has the type 023 - because that's
1665 what the outside world calls a R_PCRWORD reloc. */
1666 unsigned int type;
1667
1668 /* The value the final relocation is shifted right by. This drops
1669 unwanted data from the relocation. */
1670 unsigned int rightshift;
1671
1672 /* The size of the item to be relocated. This is *not* a
1673 power-of-two measure. To get the number of bytes operated
1674 on by a type of relocation, use bfd_get_reloc_size. */
1675 int size;
1676
1677 /* The number of bits in the item to be relocated. This is used
1678 when doing overflow checking. */
1679 unsigned int bitsize;
1680
1681 /* Notes that the relocation is relative to the location in the
1682 data section of the addend. The relocation function will
1683 subtract from the relocation value the address of the location
1684 being relocated. */
1685 boolean pc_relative;
1686
1687 /* The bit position of the reloc value in the destination.
1688 The relocated value is left shifted by this amount. */
1689 unsigned int bitpos;
1690
1691 /* What type of overflow error should be checked for when
1692 relocating. */
1693 enum complain_overflow complain_on_overflow;
1694
1695 /* If this field is non null, then the supplied function is
1696 called rather than the normal function. This allows really
1697 strange relocation methods to be accomodated (e.g., i960 callj
1698 instructions). */
1699 bfd_reloc_status_type (*special_function)
1700 PARAMS ((bfd *abfd,
1701 arelent *reloc_entry,
1702 struct symbol_cache_entry *symbol,
1703 PTR data,
1704 asection *input_section,
1705 bfd *output_bfd,
1706 char **error_message));
1707
1708 /* The textual name of the relocation type. */
1709 char *name;
1710
1711 /* Some formats record a relocation addend in the section contents
1712 rather than with the relocation. For ELF formats this is the
1713 distinction between USE_REL and USE_RELA (though the code checks
1714 for USE_REL == 1/0). The value of this field is TRUE if the
1715 addend is recorded with the section contents; when performing a
1716 partial link (ld -r) the section contents (the data) will be
1717 modified. The value of this field is FALSE if addends are
1718 recorded with the relocation (in arelent.addend); when performing
1719 a partial link the relocation will be modified.
1720 All relocations for all ELF USE_RELA targets should set this field
1721 to FALSE (values of TRUE should be looked on with suspicion).
1722 However, the converse is not true: not all relocations of all ELF
1723 USE_REL targets set this field to TRUE. Why this is so is peculiar
1724 to each particular target. For relocs that aren't used in partial
1725 links (e.g. GOT stuff) it doesn't matter what this is set to. */
1726 boolean partial_inplace;
1727
1728 /* The src_mask selects which parts of the read in data
1729 are to be used in the relocation sum. E.g., if this was an 8 bit
1730 byte of data which we read and relocated, this would be
1731 0x000000ff. When we have relocs which have an addend, such as
1732 sun4 extended relocs, the value in the offset part of a
1733 relocating field is garbage so we never use it. In this case
1734 the mask would be 0x00000000. */
1735 bfd_vma src_mask;
1736
1737 /* The dst_mask selects which parts of the instruction are replaced
1738 into the instruction. In most cases src_mask == dst_mask,
1739 except in the above special case, where dst_mask would be
1740 0x000000ff, and src_mask would be 0x00000000. */
1741 bfd_vma dst_mask;
1742
1743 /* When some formats create PC relative instructions, they leave
1744 the value of the pc of the place being relocated in the offset
1745 slot of the instruction, so that a PC relative relocation can
1746 be made just by adding in an ordinary offset (e.g., sun3 a.out).
1747 Some formats leave the displacement part of an instruction
1748 empty (e.g., m88k bcs); this flag signals the fact.*/
1749 boolean pcrel_offset;
1750
1751 };
1752 #define HOWTO(C, R,S,B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
1753 {(unsigned)C,R,S,B, P, BI, O,SF,NAME,INPLACE,MASKSRC,MASKDST,PC}
1754 #define NEWHOWTO( FUNCTION, NAME,SIZE,REL,IN) HOWTO(0,0,SIZE,0,REL,0,complain_overflow_dont,FUNCTION, NAME,false,0,0,IN)
1755
1756 #define EMPTY_HOWTO(C) \
1757 HOWTO((C),0,0,0,false,0,complain_overflow_dont,NULL,NULL,false,0,0,false)
1758
1759 #define HOWTO_PREPARE(relocation, symbol) \
1760 { \
1761 if (symbol != (asymbol *)NULL) { \
1762 if (bfd_is_com_section (symbol->section)) { \
1763 relocation = 0; \
1764 } \
1765 else { \
1766 relocation = symbol->value; \
1767 } \
1768 } \
1769 }
1770 unsigned int
1771 bfd_get_reloc_size PARAMS ((reloc_howto_type *));
1772
1773 typedef struct relent_chain {
1774 arelent relent;
1775 struct relent_chain *next;
1776 } arelent_chain;
1777 bfd_reloc_status_type
1778 bfd_check_overflow PARAMS ((enum complain_overflow how,
1779 unsigned int bitsize,
1780 unsigned int rightshift,
1781 unsigned int addrsize,
1782 bfd_vma relocation));
1783
1784 bfd_reloc_status_type
1785 bfd_perform_relocation PARAMS ((bfd *abfd,
1786 arelent *reloc_entry,
1787 PTR data,
1788 asection *input_section,
1789 bfd *output_bfd,
1790 char **error_message));
1791
1792 bfd_reloc_status_type
1793 bfd_install_relocation PARAMS ((bfd *abfd,
1794 arelent *reloc_entry,
1795 PTR data, bfd_vma data_start,
1796 asection *input_section,
1797 char **error_message));
1798
1799 enum bfd_reloc_code_real {
1800 _dummy_first_bfd_reloc_code_real,
1801
1802
1803 /* Basic absolute relocations of N bits. */
1804 BFD_RELOC_64,
1805 BFD_RELOC_32,
1806 BFD_RELOC_26,
1807 BFD_RELOC_24,
1808 BFD_RELOC_16,
1809 BFD_RELOC_14,
1810 BFD_RELOC_8,
1811
1812 /* PC-relative relocations. Sometimes these are relative to the address
1813 of the relocation itself; sometimes they are relative to the start of
1814 the section containing the relocation. It depends on the specific target.
1815
1816 The 24-bit relocation is used in some Intel 960 configurations. */
1817 BFD_RELOC_64_PCREL,
1818 BFD_RELOC_32_PCREL,
1819 BFD_RELOC_24_PCREL,
1820 BFD_RELOC_16_PCREL,
1821 BFD_RELOC_12_PCREL,
1822 BFD_RELOC_8_PCREL,
1823
1824 /* For ELF. */
1825 BFD_RELOC_32_GOT_PCREL,
1826 BFD_RELOC_16_GOT_PCREL,
1827 BFD_RELOC_8_GOT_PCREL,
1828 BFD_RELOC_32_GOTOFF,
1829 BFD_RELOC_16_GOTOFF,
1830 BFD_RELOC_LO16_GOTOFF,
1831 BFD_RELOC_HI16_GOTOFF,
1832 BFD_RELOC_HI16_S_GOTOFF,
1833 BFD_RELOC_8_GOTOFF,
1834 BFD_RELOC_32_PLT_PCREL,
1835 BFD_RELOC_24_PLT_PCREL,
1836 BFD_RELOC_16_PLT_PCREL,
1837 BFD_RELOC_8_PLT_PCREL,
1838 BFD_RELOC_32_PLTOFF,
1839 BFD_RELOC_16_PLTOFF,
1840 BFD_RELOC_LO16_PLTOFF,
1841 BFD_RELOC_HI16_PLTOFF,
1842 BFD_RELOC_HI16_S_PLTOFF,
1843 BFD_RELOC_8_PLTOFF,
1844
1845 /* Relocations used by 68K ELF. */
1846 BFD_RELOC_68K_GLOB_DAT,
1847 BFD_RELOC_68K_JMP_SLOT,
1848 BFD_RELOC_68K_RELATIVE,
1849
1850 /* Linkage-table relative. */
1851 BFD_RELOC_32_BASEREL,
1852 BFD_RELOC_16_BASEREL,
1853 BFD_RELOC_LO16_BASEREL,
1854 BFD_RELOC_HI16_BASEREL,
1855 BFD_RELOC_HI16_S_BASEREL,
1856 BFD_RELOC_8_BASEREL,
1857 BFD_RELOC_RVA,
1858
1859 /* Absolute 8-bit relocation, but used to form an address like 0xFFnn. */
1860 BFD_RELOC_8_FFnn,
1861
1862 /* These PC-relative relocations are stored as word displacements --
1863 i.e., byte displacements shifted right two bits. The 30-bit word
1864 displacement (<<32_PCREL_S2>> -- 32 bits, shifted 2) is used on the
1865 SPARC. (SPARC tools generally refer to this as <<WDISP30>>.) The
1866 signed 16-bit displacement is used on the MIPS, and the 23-bit
1867 displacement is used on the Alpha. */
1868 BFD_RELOC_32_PCREL_S2,
1869 BFD_RELOC_16_PCREL_S2,
1870 BFD_RELOC_23_PCREL_S2,
1871
1872 /* High 22 bits and low 10 bits of 32-bit value, placed into lower bits of
1873 the target word. These are used on the SPARC. */
1874 BFD_RELOC_HI22,
1875 BFD_RELOC_LO10,
1876
1877 /* For systems that allocate a Global Pointer register, these are
1878 displacements off that register. These relocation types are
1879 handled specially, because the value the register will have is
1880 decided relatively late. */
1881 BFD_RELOC_GPREL16,
1882 BFD_RELOC_GPREL32,
1883
1884 /* Reloc types used for i960/b.out. */
1885 BFD_RELOC_I960_CALLJ,
1886
1887 /* SPARC ELF relocations. There is probably some overlap with other
1888 relocation types already defined. */
1889 BFD_RELOC_NONE,
1890 BFD_RELOC_SPARC_WDISP22,
1891 BFD_RELOC_SPARC22,
1892 BFD_RELOC_SPARC13,
1893 BFD_RELOC_SPARC_GOT10,
1894 BFD_RELOC_SPARC_GOT13,
1895 BFD_RELOC_SPARC_GOT22,
1896 BFD_RELOC_SPARC_PC10,
1897 BFD_RELOC_SPARC_PC22,
1898 BFD_RELOC_SPARC_WPLT30,
1899 BFD_RELOC_SPARC_COPY,
1900 BFD_RELOC_SPARC_GLOB_DAT,
1901 BFD_RELOC_SPARC_JMP_SLOT,
1902 BFD_RELOC_SPARC_RELATIVE,
1903 BFD_RELOC_SPARC_UA32,
1904
1905 /* I think these are specific to SPARC a.out (e.g., Sun 4). */
1906 BFD_RELOC_SPARC_BASE13,
1907 BFD_RELOC_SPARC_BASE22,
1908
1909 /* SPARC64 relocations */
1910 #define BFD_RELOC_SPARC_64 BFD_RELOC_64
1911 BFD_RELOC_SPARC_10,
1912 BFD_RELOC_SPARC_11,
1913 BFD_RELOC_SPARC_OLO10,
1914 BFD_RELOC_SPARC_HH22,
1915 BFD_RELOC_SPARC_HM10,
1916 BFD_RELOC_SPARC_LM22,
1917 BFD_RELOC_SPARC_PC_HH22,
1918 BFD_RELOC_SPARC_PC_HM10,
1919 BFD_RELOC_SPARC_PC_LM22,
1920 BFD_RELOC_SPARC_WDISP16,
1921 BFD_RELOC_SPARC_WDISP19,
1922 BFD_RELOC_SPARC_7,
1923 BFD_RELOC_SPARC_6,
1924 BFD_RELOC_SPARC_5,
1925 #define BFD_RELOC_SPARC_DISP64 BFD_RELOC_64_PCREL
1926 BFD_RELOC_SPARC_PLT64,
1927 BFD_RELOC_SPARC_HIX22,
1928 BFD_RELOC_SPARC_LOX10,
1929 BFD_RELOC_SPARC_H44,
1930 BFD_RELOC_SPARC_M44,
1931 BFD_RELOC_SPARC_L44,
1932 BFD_RELOC_SPARC_REGISTER,
1933
1934 /* SPARC little endian relocation */
1935 BFD_RELOC_SPARC_REV32,
1936
1937 /* Alpha ECOFF and ELF relocations. Some of these treat the symbol or
1938 "addend" in some special way.
1939 For GPDISP_HI16 ("gpdisp") relocations, the symbol is ignored when
1940 writing; when reading, it will be the absolute section symbol. The
1941 addend is the displacement in bytes of the "lda" instruction from
1942 the "ldah" instruction (which is at the address of this reloc). */
1943 BFD_RELOC_ALPHA_GPDISP_HI16,
1944
1945 /* For GPDISP_LO16 ("ignore") relocations, the symbol is handled as
1946 with GPDISP_HI16 relocs. The addend is ignored when writing the
1947 relocations out, and is filled in with the file's GP value on
1948 reading, for convenience. */
1949 BFD_RELOC_ALPHA_GPDISP_LO16,
1950
1951 /* The ELF GPDISP relocation is exactly the same as the GPDISP_HI16
1952 relocation except that there is no accompanying GPDISP_LO16
1953 relocation. */
1954 BFD_RELOC_ALPHA_GPDISP,
1955
1956 /* The Alpha LITERAL/LITUSE relocs are produced by a symbol reference;
1957 the assembler turns it into a LDQ instruction to load the address of
1958 the symbol, and then fills in a register in the real instruction.
1959
1960 The LITERAL reloc, at the LDQ instruction, refers to the .lita
1961 section symbol. The addend is ignored when writing, but is filled
1962 in with the file's GP value on reading, for convenience, as with the
1963 GPDISP_LO16 reloc.
1964
1965 The ELF_LITERAL reloc is somewhere between 16_GOTOFF and GPDISP_LO16.
1966 It should refer to the symbol to be referenced, as with 16_GOTOFF,
1967 but it generates output not based on the position within the .got
1968 section, but relative to the GP value chosen for the file during the
1969 final link stage.
1970
1971 The LITUSE reloc, on the instruction using the loaded address, gives
1972 information to the linker that it might be able to use to optimize
1973 away some literal section references. The symbol is ignored (read
1974 as the absolute section symbol), and the "addend" indicates the type
1975 of instruction using the register:
1976 1 - "memory" fmt insn
1977 2 - byte-manipulation (byte offset reg)
1978 3 - jsr (target of branch)
1979
1980 The GNU linker currently doesn't do any of this optimizing. */
1981 BFD_RELOC_ALPHA_LITERAL,
1982 BFD_RELOC_ALPHA_ELF_LITERAL,
1983 BFD_RELOC_ALPHA_LITUSE,
1984
1985 /* The BFD_RELOC_ALPHA_USER_* relocations are used by the assembler to
1986 process the explicit !<reloc>!sequence relocations, and are mapped
1987 into the normal relocations at the end of processing. */
1988 BFD_RELOC_ALPHA_USER_LITERAL,
1989 BFD_RELOC_ALPHA_USER_LITUSE_BASE,
1990 BFD_RELOC_ALPHA_USER_LITUSE_BYTOFF,
1991 BFD_RELOC_ALPHA_USER_LITUSE_JSR,
1992 BFD_RELOC_ALPHA_USER_GPDISP,
1993 BFD_RELOC_ALPHA_USER_GPRELHIGH,
1994 BFD_RELOC_ALPHA_USER_GPRELLOW,
1995
1996 /* The HINT relocation indicates a value that should be filled into the
1997 "hint" field of a jmp/jsr/ret instruction, for possible branch-
1998 prediction logic which may be provided on some processors. */
1999 BFD_RELOC_ALPHA_HINT,
2000
2001 /* The LINKAGE relocation outputs a linkage pair in the object file,
2002 which is filled by the linker. */
2003 BFD_RELOC_ALPHA_LINKAGE,
2004
2005 /* The CODEADDR relocation outputs a STO_CA in the object file,
2006 which is filled by the linker. */
2007 BFD_RELOC_ALPHA_CODEADDR,
2008
2009 /* Bits 27..2 of the relocation address shifted right 2 bits;
2010 simple reloc otherwise. */
2011 BFD_RELOC_MIPS_JMP,
2012
2013 /* The MIPS16 jump instruction. */
2014 BFD_RELOC_MIPS16_JMP,
2015
2016 /* MIPS16 GP relative reloc. */
2017 BFD_RELOC_MIPS16_GPREL,
2018
2019 /* High 16 bits of 32-bit value; simple reloc. */
2020 BFD_RELOC_HI16,
2021
2022 /* High 16 bits of 32-bit value but the low 16 bits will be sign
2023 extended and added to form the final result. If the low 16
2024 bits form a negative number, we need to add one to the high value
2025 to compensate for the borrow when the low bits are added. */
2026 BFD_RELOC_HI16_S,
2027
2028 /* Low 16 bits. */
2029 BFD_RELOC_LO16,
2030
2031 /* Like BFD_RELOC_HI16_S, but PC relative. */
2032 BFD_RELOC_PCREL_HI16_S,
2033
2034 /* Like BFD_RELOC_LO16, but PC relative. */
2035 BFD_RELOC_PCREL_LO16,
2036
2037 /* Relocation relative to the global pointer. */
2038 #define BFD_RELOC_MIPS_GPREL BFD_RELOC_GPREL16
2039
2040 /* Relocation against a MIPS literal section. */
2041 BFD_RELOC_MIPS_LITERAL,
2042
2043 /* MIPS ELF relocations. */
2044 BFD_RELOC_MIPS_GOT16,
2045 BFD_RELOC_MIPS_CALL16,
2046 #define BFD_RELOC_MIPS_GPREL32 BFD_RELOC_GPREL32
2047 BFD_RELOC_MIPS_GOT_HI16,
2048 BFD_RELOC_MIPS_GOT_LO16,
2049 BFD_RELOC_MIPS_CALL_HI16,
2050 BFD_RELOC_MIPS_CALL_LO16,
2051 BFD_RELOC_MIPS_SUB,
2052 BFD_RELOC_MIPS_GOT_PAGE,
2053 BFD_RELOC_MIPS_GOT_OFST,
2054 BFD_RELOC_MIPS_GOT_DISP,
2055
2056
2057 /* i386/elf relocations */
2058 BFD_RELOC_386_GOT32,
2059 BFD_RELOC_386_PLT32,
2060 BFD_RELOC_386_COPY,
2061 BFD_RELOC_386_GLOB_DAT,
2062 BFD_RELOC_386_JUMP_SLOT,
2063 BFD_RELOC_386_RELATIVE,
2064 BFD_RELOC_386_GOTOFF,
2065 BFD_RELOC_386_GOTPC,
2066
2067 /* x86-64/elf relocations */
2068 BFD_RELOC_X86_64_GOT32,
2069 BFD_RELOC_X86_64_PLT32,
2070 BFD_RELOC_X86_64_COPY,
2071 BFD_RELOC_X86_64_GLOB_DAT,
2072 BFD_RELOC_X86_64_JUMP_SLOT,
2073 BFD_RELOC_X86_64_RELATIVE,
2074 BFD_RELOC_X86_64_GOTPCREL,
2075 BFD_RELOC_X86_64_32S,
2076
2077 /* ns32k relocations */
2078 BFD_RELOC_NS32K_IMM_8,
2079 BFD_RELOC_NS32K_IMM_16,
2080 BFD_RELOC_NS32K_IMM_32,
2081 BFD_RELOC_NS32K_IMM_8_PCREL,
2082 BFD_RELOC_NS32K_IMM_16_PCREL,
2083 BFD_RELOC_NS32K_IMM_32_PCREL,
2084 BFD_RELOC_NS32K_DISP_8,
2085 BFD_RELOC_NS32K_DISP_16,
2086 BFD_RELOC_NS32K_DISP_32,
2087 BFD_RELOC_NS32K_DISP_8_PCREL,
2088 BFD_RELOC_NS32K_DISP_16_PCREL,
2089 BFD_RELOC_NS32K_DISP_32_PCREL,
2090
2091 /* Picojava relocs. Not all of these appear in object files. */
2092 BFD_RELOC_PJ_CODE_HI16,
2093 BFD_RELOC_PJ_CODE_LO16,
2094 BFD_RELOC_PJ_CODE_DIR16,
2095 BFD_RELOC_PJ_CODE_DIR32,
2096 BFD_RELOC_PJ_CODE_REL16,
2097 BFD_RELOC_PJ_CODE_REL32,
2098
2099 /* Power(rs6000) and PowerPC relocations. */
2100 BFD_RELOC_PPC_B26,
2101 BFD_RELOC_PPC_BA26,
2102 BFD_RELOC_PPC_TOC16,
2103 BFD_RELOC_PPC_B16,
2104 BFD_RELOC_PPC_B16_BRTAKEN,
2105 BFD_RELOC_PPC_B16_BRNTAKEN,
2106 BFD_RELOC_PPC_BA16,
2107 BFD_RELOC_PPC_BA16_BRTAKEN,
2108 BFD_RELOC_PPC_BA16_BRNTAKEN,
2109 BFD_RELOC_PPC_COPY,
2110 BFD_RELOC_PPC_GLOB_DAT,
2111 BFD_RELOC_PPC_JMP_SLOT,
2112 BFD_RELOC_PPC_RELATIVE,
2113 BFD_RELOC_PPC_LOCAL24PC,
2114 BFD_RELOC_PPC_EMB_NADDR32,
2115 BFD_RELOC_PPC_EMB_NADDR16,
2116 BFD_RELOC_PPC_EMB_NADDR16_LO,
2117 BFD_RELOC_PPC_EMB_NADDR16_HI,
2118 BFD_RELOC_PPC_EMB_NADDR16_HA,
2119 BFD_RELOC_PPC_EMB_SDAI16,
2120 BFD_RELOC_PPC_EMB_SDA2I16,
2121 BFD_RELOC_PPC_EMB_SDA2REL,
2122 BFD_RELOC_PPC_EMB_SDA21,
2123 BFD_RELOC_PPC_EMB_MRKREF,
2124 BFD_RELOC_PPC_EMB_RELSEC16,
2125 BFD_RELOC_PPC_EMB_RELST_LO,
2126 BFD_RELOC_PPC_EMB_RELST_HI,
2127 BFD_RELOC_PPC_EMB_RELST_HA,
2128 BFD_RELOC_PPC_EMB_BIT_FLD,
2129 BFD_RELOC_PPC_EMB_RELSDA,
2130
2131 /* IBM 370/390 relocations */
2132 BFD_RELOC_I370_D12,
2133
2134 /* The type of reloc used to build a contructor table - at the moment
2135 probably a 32 bit wide absolute relocation, but the target can choose.
2136 It generally does map to one of the other relocation types. */
2137 BFD_RELOC_CTOR,
2138
2139 /* ARM 26 bit pc-relative branch. The lowest two bits must be zero and are
2140 not stored in the instruction. */
2141 BFD_RELOC_ARM_PCREL_BRANCH,
2142
2143 /* ARM 26 bit pc-relative branch. The lowest bit must be zero and is
2144 not stored in the instruction. The 2nd lowest bit comes from a 1 bit
2145 field in the instruction. */
2146 BFD_RELOC_ARM_PCREL_BLX,
2147
2148 /* Thumb 22 bit pc-relative branch. The lowest bit must be zero and is
2149 not stored in the instruction. The 2nd lowest bit comes from a 1 bit
2150 field in the instruction. */
2151 BFD_RELOC_THUMB_PCREL_BLX,
2152
2153 /* These relocs are only used within the ARM assembler. They are not
2154 (at present) written to any object files. */
2155 BFD_RELOC_ARM_IMMEDIATE,
2156 BFD_RELOC_ARM_ADRL_IMMEDIATE,
2157 BFD_RELOC_ARM_OFFSET_IMM,
2158 BFD_RELOC_ARM_SHIFT_IMM,
2159 BFD_RELOC_ARM_SWI,
2160 BFD_RELOC_ARM_MULTI,
2161 BFD_RELOC_ARM_CP_OFF_IMM,
2162 BFD_RELOC_ARM_ADR_IMM,
2163 BFD_RELOC_ARM_LDR_IMM,
2164 BFD_RELOC_ARM_LITERAL,
2165 BFD_RELOC_ARM_IN_POOL,
2166 BFD_RELOC_ARM_OFFSET_IMM8,
2167 BFD_RELOC_ARM_HWLITERAL,
2168 BFD_RELOC_ARM_THUMB_ADD,
2169 BFD_RELOC_ARM_THUMB_IMM,
2170 BFD_RELOC_ARM_THUMB_SHIFT,
2171 BFD_RELOC_ARM_THUMB_OFFSET,
2172 BFD_RELOC_ARM_GOT12,
2173 BFD_RELOC_ARM_GOT32,
2174 BFD_RELOC_ARM_JUMP_SLOT,
2175 BFD_RELOC_ARM_COPY,
2176 BFD_RELOC_ARM_GLOB_DAT,
2177 BFD_RELOC_ARM_PLT32,
2178 BFD_RELOC_ARM_RELATIVE,
2179 BFD_RELOC_ARM_GOTOFF,
2180 BFD_RELOC_ARM_GOTPC,
2181
2182 /* Hitachi SH relocs. Not all of these appear in object files. */
2183 BFD_RELOC_SH_PCDISP8BY2,
2184 BFD_RELOC_SH_PCDISP12BY2,
2185 BFD_RELOC_SH_IMM4,
2186 BFD_RELOC_SH_IMM4BY2,
2187 BFD_RELOC_SH_IMM4BY4,
2188 BFD_RELOC_SH_IMM8,
2189 BFD_RELOC_SH_IMM8BY2,
2190 BFD_RELOC_SH_IMM8BY4,
2191 BFD_RELOC_SH_PCRELIMM8BY2,
2192 BFD_RELOC_SH_PCRELIMM8BY4,
2193 BFD_RELOC_SH_SWITCH16,
2194 BFD_RELOC_SH_SWITCH32,
2195 BFD_RELOC_SH_USES,
2196 BFD_RELOC_SH_COUNT,
2197 BFD_RELOC_SH_ALIGN,
2198 BFD_RELOC_SH_CODE,
2199 BFD_RELOC_SH_DATA,
2200 BFD_RELOC_SH_LABEL,
2201 BFD_RELOC_SH_LOOP_START,
2202 BFD_RELOC_SH_LOOP_END,
2203 BFD_RELOC_SH_COPY,
2204 BFD_RELOC_SH_GLOB_DAT,
2205 BFD_RELOC_SH_JMP_SLOT,
2206 BFD_RELOC_SH_RELATIVE,
2207 BFD_RELOC_SH_GOTPC,
2208
2209 /* Thumb 23-, 12- and 9-bit pc-relative branches. The lowest bit must
2210 be zero and is not stored in the instruction. */
2211 BFD_RELOC_THUMB_PCREL_BRANCH9,
2212 BFD_RELOC_THUMB_PCREL_BRANCH12,
2213 BFD_RELOC_THUMB_PCREL_BRANCH23,
2214
2215 /* ARC Cores relocs.
2216 ARC 22 bit pc-relative branch. The lowest two bits must be zero and are
2217 not stored in the instruction. The high 20 bits are installed in bits 26
2218 through 7 of the instruction. */
2219 BFD_RELOC_ARC_B22_PCREL,
2220
2221 /* ARC 26 bit absolute branch. The lowest two bits must be zero and are not
2222 stored in the instruction. The high 24 bits are installed in bits 23
2223 through 0. */
2224 BFD_RELOC_ARC_B26,
2225
2226 /* Mitsubishi D10V relocs.
2227 This is a 10-bit reloc with the right 2 bits
2228 assumed to be 0. */
2229 BFD_RELOC_D10V_10_PCREL_R,
2230
2231 /* Mitsubishi D10V relocs.
2232 This is a 10-bit reloc with the right 2 bits
2233 assumed to be 0. This is the same as the previous reloc
2234 except it is in the left container, i.e.,
2235 shifted left 15 bits. */
2236 BFD_RELOC_D10V_10_PCREL_L,
2237
2238 /* This is an 18-bit reloc with the right 2 bits
2239 assumed to be 0. */
2240 BFD_RELOC_D10V_18,
2241
2242 /* This is an 18-bit reloc with the right 2 bits
2243 assumed to be 0. */
2244 BFD_RELOC_D10V_18_PCREL,
2245
2246 /* Mitsubishi D30V relocs.
2247 This is a 6-bit absolute reloc. */
2248 BFD_RELOC_D30V_6,
2249
2250 /* This is a 6-bit pc-relative reloc with
2251 the right 3 bits assumed to be 0. */
2252 BFD_RELOC_D30V_9_PCREL,
2253
2254 /* This is a 6-bit pc-relative reloc with
2255 the right 3 bits assumed to be 0. Same
2256 as the previous reloc but on the right side
2257 of the container. */
2258 BFD_RELOC_D30V_9_PCREL_R,
2259
2260 /* This is a 12-bit absolute reloc with the
2261 right 3 bitsassumed to be 0. */
2262 BFD_RELOC_D30V_15,
2263
2264 /* This is a 12-bit pc-relative reloc with
2265 the right 3 bits assumed to be 0. */
2266 BFD_RELOC_D30V_15_PCREL,
2267
2268 /* This is a 12-bit pc-relative reloc with
2269 the right 3 bits assumed to be 0. Same
2270 as the previous reloc but on the right side
2271 of the container. */
2272 BFD_RELOC_D30V_15_PCREL_R,
2273
2274 /* This is an 18-bit absolute reloc with
2275 the right 3 bits assumed to be 0. */
2276 BFD_RELOC_D30V_21,
2277
2278 /* This is an 18-bit pc-relative reloc with
2279 the right 3 bits assumed to be 0. */
2280 BFD_RELOC_D30V_21_PCREL,
2281
2282 /* This is an 18-bit pc-relative reloc with
2283 the right 3 bits assumed to be 0. Same
2284 as the previous reloc but on the right side
2285 of the container. */
2286 BFD_RELOC_D30V_21_PCREL_R,
2287
2288 /* This is a 32-bit absolute reloc. */
2289 BFD_RELOC_D30V_32,
2290
2291 /* This is a 32-bit pc-relative reloc. */
2292 BFD_RELOC_D30V_32_PCREL,
2293
2294 /* Mitsubishi M32R relocs.
2295 This is a 24 bit absolute address. */
2296 BFD_RELOC_M32R_24,
2297
2298 /* This is a 10-bit pc-relative reloc with the right 2 bits assumed to be 0. */
2299 BFD_RELOC_M32R_10_PCREL,
2300
2301 /* This is an 18-bit reloc with the right 2 bits assumed to be 0. */
2302 BFD_RELOC_M32R_18_PCREL,
2303
2304 /* This is a 26-bit reloc with the right 2 bits assumed to be 0. */
2305 BFD_RELOC_M32R_26_PCREL,
2306
2307 /* This is a 16-bit reloc containing the high 16 bits of an address
2308 used when the lower 16 bits are treated as unsigned. */
2309 BFD_RELOC_M32R_HI16_ULO,
2310
2311 /* This is a 16-bit reloc containing the high 16 bits of an address
2312 used when the lower 16 bits are treated as signed. */
2313 BFD_RELOC_M32R_HI16_SLO,
2314
2315 /* This is a 16-bit reloc containing the lower 16 bits of an address. */
2316 BFD_RELOC_M32R_LO16,
2317
2318 /* This is a 16-bit reloc containing the small data area offset for use in
2319 add3, load, and store instructions. */
2320 BFD_RELOC_M32R_SDA16,
2321
2322 /* This is a 9-bit reloc */
2323 BFD_RELOC_V850_9_PCREL,
2324
2325 /* This is a 22-bit reloc */
2326 BFD_RELOC_V850_22_PCREL,
2327
2328 /* This is a 16 bit offset from the short data area pointer. */
2329 BFD_RELOC_V850_SDA_16_16_OFFSET,
2330
2331 /* This is a 16 bit offset (of which only 15 bits are used) from the
2332 short data area pointer. */
2333 BFD_RELOC_V850_SDA_15_16_OFFSET,
2334
2335 /* This is a 16 bit offset from the zero data area pointer. */
2336 BFD_RELOC_V850_ZDA_16_16_OFFSET,
2337
2338 /* This is a 16 bit offset (of which only 15 bits are used) from the
2339 zero data area pointer. */
2340 BFD_RELOC_V850_ZDA_15_16_OFFSET,
2341
2342 /* This is an 8 bit offset (of which only 6 bits are used) from the
2343 tiny data area pointer. */
2344 BFD_RELOC_V850_TDA_6_8_OFFSET,
2345
2346 /* This is an 8bit offset (of which only 7 bits are used) from the tiny
2347 data area pointer. */
2348 BFD_RELOC_V850_TDA_7_8_OFFSET,
2349
2350 /* This is a 7 bit offset from the tiny data area pointer. */
2351 BFD_RELOC_V850_TDA_7_7_OFFSET,
2352
2353 /* This is a 16 bit offset from the tiny data area pointer. */
2354 BFD_RELOC_V850_TDA_16_16_OFFSET,
2355
2356 /* This is a 5 bit offset (of which only 4 bits are used) from the tiny
2357 data area pointer. */
2358 BFD_RELOC_V850_TDA_4_5_OFFSET,
2359
2360 /* This is a 4 bit offset from the tiny data area pointer. */
2361 BFD_RELOC_V850_TDA_4_4_OFFSET,
2362
2363 /* This is a 16 bit offset from the short data area pointer, with the
2364 bits placed non-contigously in the instruction. */
2365 BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET,
2366
2367 /* This is a 16 bit offset from the zero data area pointer, with the
2368 bits placed non-contigously in the instruction. */
2369 BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET,
2370
2371 /* This is a 6 bit offset from the call table base pointer. */
2372 BFD_RELOC_V850_CALLT_6_7_OFFSET,
2373
2374 /* This is a 16 bit offset from the call table base pointer. */
2375 BFD_RELOC_V850_CALLT_16_16_OFFSET,
2376
2377
2378 /* This is a 32bit pcrel reloc for the mn10300, offset by two bytes in the
2379 instruction. */
2380 BFD_RELOC_MN10300_32_PCREL,
2381
2382 /* This is a 16bit pcrel reloc for the mn10300, offset by two bytes in the
2383 instruction. */
2384 BFD_RELOC_MN10300_16_PCREL,
2385
2386 /* This is a 8bit DP reloc for the tms320c30, where the most
2387 significant 8 bits of a 24 bit word are placed into the least
2388 significant 8 bits of the opcode. */
2389 BFD_RELOC_TIC30_LDP,
2390
2391 /* This is a 7bit reloc for the tms320c54x, where the least
2392 significant 7 bits of a 16 bit word are placed into the least
2393 significant 7 bits of the opcode. */
2394 BFD_RELOC_TIC54X_PARTLS7,
2395
2396 /* This is a 9bit DP reloc for the tms320c54x, where the most
2397 significant 9 bits of a 16 bit word are placed into the least
2398 significant 9 bits of the opcode. */
2399 BFD_RELOC_TIC54X_PARTMS9,
2400
2401 /* This is an extended address 23-bit reloc for the tms320c54x. */
2402 BFD_RELOC_TIC54X_23,
2403
2404 /* This is a 16-bit reloc for the tms320c54x, where the least
2405 significant 16 bits of a 23-bit extended address are placed into
2406 the opcode. */
2407 BFD_RELOC_TIC54X_16_OF_23,
2408
2409 /* This is a reloc for the tms320c54x, where the most
2410 significant 7 bits of a 23-bit extended address are placed into
2411 the opcode. */
2412 BFD_RELOC_TIC54X_MS7_OF_23,
2413
2414 /* This is a 48 bit reloc for the FR30 that stores 32 bits. */
2415 BFD_RELOC_FR30_48,
2416
2417 /* This is a 32 bit reloc for the FR30 that stores 20 bits split up into
2418 two sections. */
2419 BFD_RELOC_FR30_20,
2420
2421 /* This is a 16 bit reloc for the FR30 that stores a 6 bit word offset in
2422 4 bits. */
2423 BFD_RELOC_FR30_6_IN_4,
2424
2425 /* This is a 16 bit reloc for the FR30 that stores an 8 bit byte offset
2426 into 8 bits. */
2427 BFD_RELOC_FR30_8_IN_8,
2428
2429 /* This is a 16 bit reloc for the FR30 that stores a 9 bit short offset
2430 into 8 bits. */
2431 BFD_RELOC_FR30_9_IN_8,
2432
2433 /* This is a 16 bit reloc for the FR30 that stores a 10 bit word offset
2434 into 8 bits. */
2435 BFD_RELOC_FR30_10_IN_8,
2436
2437 /* This is a 16 bit reloc for the FR30 that stores a 9 bit pc relative
2438 short offset into 8 bits. */
2439 BFD_RELOC_FR30_9_PCREL,
2440
2441 /* This is a 16 bit reloc for the FR30 that stores a 12 bit pc relative
2442 short offset into 11 bits. */
2443 BFD_RELOC_FR30_12_PCREL,
2444
2445 /* Motorola Mcore relocations. */
2446 BFD_RELOC_MCORE_PCREL_IMM8BY4,
2447 BFD_RELOC_MCORE_PCREL_IMM11BY2,
2448 BFD_RELOC_MCORE_PCREL_IMM4BY2,
2449 BFD_RELOC_MCORE_PCREL_32,
2450 BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2,
2451 BFD_RELOC_MCORE_RVA,
2452
2453 /* This is a 16 bit reloc for the AVR that stores 8 bit pc relative
2454 short offset into 7 bits. */
2455 BFD_RELOC_AVR_7_PCREL,
2456
2457 /* This is a 16 bit reloc for the AVR that stores 13 bit pc relative
2458 short offset into 12 bits. */
2459 BFD_RELOC_AVR_13_PCREL,
2460
2461 /* This is a 16 bit reloc for the AVR that stores 17 bit value (usually
2462 program memory address) into 16 bits. */
2463 BFD_RELOC_AVR_16_PM,
2464
2465 /* This is a 16 bit reloc for the AVR that stores 8 bit value (usually
2466 data memory address) into 8 bit immediate value of LDI insn. */
2467 BFD_RELOC_AVR_LO8_LDI,
2468
2469 /* This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
2470 of data memory address) into 8 bit immediate value of LDI insn. */
2471 BFD_RELOC_AVR_HI8_LDI,
2472
2473 /* This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
2474 of program memory address) into 8 bit immediate value of LDI insn. */
2475 BFD_RELOC_AVR_HH8_LDI,
2476
2477 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2478 (usually data memory address) into 8 bit immediate value of SUBI insn. */
2479 BFD_RELOC_AVR_LO8_LDI_NEG,
2480
2481 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2482 (high 8 bit of data memory address) into 8 bit immediate value of
2483 SUBI insn. */
2484 BFD_RELOC_AVR_HI8_LDI_NEG,
2485
2486 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2487 (most high 8 bit of program memory address) into 8 bit immediate value
2488 of LDI or SUBI insn. */
2489 BFD_RELOC_AVR_HH8_LDI_NEG,
2490
2491 /* This is a 16 bit reloc for the AVR that stores 8 bit value (usually
2492 command address) into 8 bit immediate value of LDI insn. */
2493 BFD_RELOC_AVR_LO8_LDI_PM,
2494
2495 /* This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
2496 of command address) into 8 bit immediate value of LDI insn. */
2497 BFD_RELOC_AVR_HI8_LDI_PM,
2498
2499 /* This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
2500 of command address) into 8 bit immediate value of LDI insn. */
2501 BFD_RELOC_AVR_HH8_LDI_PM,
2502
2503 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2504 (usually command address) into 8 bit immediate value of SUBI insn. */
2505 BFD_RELOC_AVR_LO8_LDI_PM_NEG,
2506
2507 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2508 (high 8 bit of 16 bit command address) into 8 bit immediate value
2509 of SUBI insn. */
2510 BFD_RELOC_AVR_HI8_LDI_PM_NEG,
2511
2512 /* This is a 16 bit reloc for the AVR that stores negated 8 bit value
2513 (high 6 bit of 22 bit command address) into 8 bit immediate
2514 value of SUBI insn. */
2515 BFD_RELOC_AVR_HH8_LDI_PM_NEG,
2516
2517 /* This is a 32 bit reloc for the AVR that stores 23 bit value
2518 into 22 bits. */
2519 BFD_RELOC_AVR_CALL,
2520
2521 /* Direct 12 bit. */
2522 BFD_RELOC_390_12,
2523
2524 /* 12 bit GOT offset. */
2525 BFD_RELOC_390_GOT12,
2526
2527 /* 32 bit PC relative PLT address. */
2528 BFD_RELOC_390_PLT32,
2529
2530 /* Copy symbol at runtime. */
2531 BFD_RELOC_390_COPY,
2532
2533 /* Create GOT entry. */
2534 BFD_RELOC_390_GLOB_DAT,
2535
2536 /* Create PLT entry. */
2537 BFD_RELOC_390_JMP_SLOT,
2538
2539 /* Adjust by program base. */
2540 BFD_RELOC_390_RELATIVE,
2541
2542 /* 32 bit PC relative offset to GOT. */
2543 BFD_RELOC_390_GOTPC,
2544
2545 /* 16 bit GOT offset. */
2546 BFD_RELOC_390_GOT16,
2547
2548 /* PC relative 16 bit shifted by 1. */
2549 BFD_RELOC_390_PC16DBL,
2550
2551 /* 16 bit PC rel. PLT shifted by 1. */
2552 BFD_RELOC_390_PLT16DBL,
2553
2554 /* PC relative 32 bit shifted by 1. */
2555 BFD_RELOC_390_PC32DBL,
2556
2557 /* 32 bit PC rel. PLT shifted by 1. */
2558 BFD_RELOC_390_PLT32DBL,
2559
2560 /* 32 bit PC rel. GOT shifted by 1. */
2561 BFD_RELOC_390_GOTPCDBL,
2562
2563 /* 64 bit GOT offset. */
2564 BFD_RELOC_390_GOT64,
2565
2566 /* 64 bit PC relative PLT address. */
2567 BFD_RELOC_390_PLT64,
2568
2569 /* 32 bit rel. offset to GOT entry. */
2570 BFD_RELOC_390_GOTENT,
2571
2572 /* These two relocations are used by the linker to determine which of
2573 the entries in a C++ virtual function table are actually used. When
2574 the --gc-sections option is given, the linker will zero out the entries
2575 that are not used, so that the code for those functions need not be
2576 included in the output.
2577
2578 VTABLE_INHERIT is a zero-space relocation used to describe to the
2579 linker the inheritence tree of a C++ virtual function table. The
2580 relocation's symbol should be the parent class' vtable, and the
2581 relocation should be located at the child vtable.
2582
2583 VTABLE_ENTRY is a zero-space relocation that describes the use of a
2584 virtual function table entry. The reloc's symbol should refer to the
2585 table of the class mentioned in the code. Off of that base, an offset
2586 describes the entry that is being used. For Rela hosts, this offset
2587 is stored in the reloc's addend. For Rel hosts, we are forced to put
2588 this offset in the reloc's section offset. */
2589 BFD_RELOC_VTABLE_INHERIT,
2590 BFD_RELOC_VTABLE_ENTRY,
2591
2592 /* Intel IA64 Relocations. */
2593 BFD_RELOC_IA64_IMM14,
2594 BFD_RELOC_IA64_IMM22,
2595 BFD_RELOC_IA64_IMM64,
2596 BFD_RELOC_IA64_DIR32MSB,
2597 BFD_RELOC_IA64_DIR32LSB,
2598 BFD_RELOC_IA64_DIR64MSB,
2599 BFD_RELOC_IA64_DIR64LSB,
2600 BFD_RELOC_IA64_GPREL22,
2601 BFD_RELOC_IA64_GPREL64I,
2602 BFD_RELOC_IA64_GPREL32MSB,
2603 BFD_RELOC_IA64_GPREL32LSB,
2604 BFD_RELOC_IA64_GPREL64MSB,
2605 BFD_RELOC_IA64_GPREL64LSB,
2606 BFD_RELOC_IA64_LTOFF22,
2607 BFD_RELOC_IA64_LTOFF64I,
2608 BFD_RELOC_IA64_PLTOFF22,
2609 BFD_RELOC_IA64_PLTOFF64I,
2610 BFD_RELOC_IA64_PLTOFF64MSB,
2611 BFD_RELOC_IA64_PLTOFF64LSB,
2612 BFD_RELOC_IA64_FPTR64I,
2613 BFD_RELOC_IA64_FPTR32MSB,
2614 BFD_RELOC_IA64_FPTR32LSB,
2615 BFD_RELOC_IA64_FPTR64MSB,
2616 BFD_RELOC_IA64_FPTR64LSB,
2617 BFD_RELOC_IA64_PCREL21B,
2618 BFD_RELOC_IA64_PCREL21BI,
2619 BFD_RELOC_IA64_PCREL21M,
2620 BFD_RELOC_IA64_PCREL21F,
2621 BFD_RELOC_IA64_PCREL22,
2622 BFD_RELOC_IA64_PCREL60B,
2623 BFD_RELOC_IA64_PCREL64I,
2624 BFD_RELOC_IA64_PCREL32MSB,
2625 BFD_RELOC_IA64_PCREL32LSB,
2626 BFD_RELOC_IA64_PCREL64MSB,
2627 BFD_RELOC_IA64_PCREL64LSB,
2628 BFD_RELOC_IA64_LTOFF_FPTR22,
2629 BFD_RELOC_IA64_LTOFF_FPTR64I,
2630 BFD_RELOC_IA64_LTOFF_FPTR64MSB,
2631 BFD_RELOC_IA64_LTOFF_FPTR64LSB,
2632 BFD_RELOC_IA64_SEGREL32MSB,
2633 BFD_RELOC_IA64_SEGREL32LSB,
2634 BFD_RELOC_IA64_SEGREL64MSB,
2635 BFD_RELOC_IA64_SEGREL64LSB,
2636 BFD_RELOC_IA64_SECREL32MSB,
2637 BFD_RELOC_IA64_SECREL32LSB,
2638 BFD_RELOC_IA64_SECREL64MSB,
2639 BFD_RELOC_IA64_SECREL64LSB,
2640 BFD_RELOC_IA64_REL32MSB,
2641 BFD_RELOC_IA64_REL32LSB,
2642 BFD_RELOC_IA64_REL64MSB,
2643 BFD_RELOC_IA64_REL64LSB,
2644 BFD_RELOC_IA64_LTV32MSB,
2645 BFD_RELOC_IA64_LTV32LSB,
2646 BFD_RELOC_IA64_LTV64MSB,
2647 BFD_RELOC_IA64_LTV64LSB,
2648 BFD_RELOC_IA64_IPLTMSB,
2649 BFD_RELOC_IA64_IPLTLSB,
2650 BFD_RELOC_IA64_COPY,
2651 BFD_RELOC_IA64_TPREL22,
2652 BFD_RELOC_IA64_TPREL64MSB,
2653 BFD_RELOC_IA64_TPREL64LSB,
2654 BFD_RELOC_IA64_LTOFF_TP22,
2655 BFD_RELOC_IA64_LTOFF22X,
2656 BFD_RELOC_IA64_LDXMOV,
2657
2658 /* Motorola 68HC11 reloc.
2659 This is the 8 bits high part of an absolute address. */
2660 BFD_RELOC_M68HC11_HI8,
2661
2662 /* Motorola 68HC11 reloc.
2663 This is the 8 bits low part of an absolute address. */
2664 BFD_RELOC_M68HC11_LO8,
2665
2666 /* Motorola 68HC11 reloc.
2667 This is the 3 bits of a value. */
2668 BFD_RELOC_M68HC11_3B,
2669
2670 /* These relocs are only used within the CRIS assembler. They are not
2671 (at present) written to any object files. */
2672 BFD_RELOC_CRIS_BDISP8,
2673 BFD_RELOC_CRIS_UNSIGNED_5,
2674 BFD_RELOC_CRIS_SIGNED_6,
2675 BFD_RELOC_CRIS_UNSIGNED_6,
2676 BFD_RELOC_CRIS_UNSIGNED_4,
2677
2678 /* Intel i860 Relocations. */
2679 BFD_RELOC_860_COPY,
2680 BFD_RELOC_860_GLOB_DAT,
2681 BFD_RELOC_860_JUMP_SLOT,
2682 BFD_RELOC_860_RELATIVE,
2683 BFD_RELOC_860_PC26,
2684 BFD_RELOC_860_PLT26,
2685 BFD_RELOC_860_PC16,
2686 BFD_RELOC_860_LOW0,
2687 BFD_RELOC_860_SPLIT0,
2688 BFD_RELOC_860_LOW1,
2689 BFD_RELOC_860_SPLIT1,
2690 BFD_RELOC_860_LOW2,
2691 BFD_RELOC_860_SPLIT2,
2692 BFD_RELOC_860_LOW3,
2693 BFD_RELOC_860_LOGOT0,
2694 BFD_RELOC_860_SPGOT0,
2695 BFD_RELOC_860_LOGOT1,
2696 BFD_RELOC_860_SPGOT1,
2697 BFD_RELOC_860_LOGOTOFF0,
2698 BFD_RELOC_860_SPGOTOFF0,
2699 BFD_RELOC_860_LOGOTOFF1,
2700 BFD_RELOC_860_SPGOTOFF1,
2701 BFD_RELOC_860_LOGOTOFF2,
2702 BFD_RELOC_860_LOGOTOFF3,
2703 BFD_RELOC_860_LOPC,
2704 BFD_RELOC_860_HIGHADJ,
2705 BFD_RELOC_860_HAGOT,
2706 BFD_RELOC_860_HAGOTOFF,
2707 BFD_RELOC_860_HAPC,
2708 BFD_RELOC_860_HIGH,
2709 BFD_RELOC_860_HIGOT,
2710 BFD_RELOC_860_HIGOTOFF,
2711 BFD_RELOC_UNUSED };
2712 typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
2713 reloc_howto_type *
2714 bfd_reloc_type_lookup PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
2715
2716 const char *
2717 bfd_get_reloc_code_name PARAMS ((bfd_reloc_code_real_type code));
2718
2719
2720 typedef struct symbol_cache_entry
2721 {
2722 /* A pointer to the BFD which owns the symbol. This information
2723 is necessary so that a back end can work out what additional
2724 information (invisible to the application writer) is carried
2725 with the symbol.
2726
2727 This field is *almost* redundant, since you can use section->owner
2728 instead, except that some symbols point to the global sections
2729 bfd_{abs,com,und}_section. This could be fixed by making
2730 these globals be per-bfd (or per-target-flavor). FIXME. */
2731
2732 struct _bfd *the_bfd; /* Use bfd_asymbol_bfd(sym) to access this field. */
2733
2734 /* The text of the symbol. The name is left alone, and not copied; the
2735 application may not alter it. */
2736 CONST char *name;
2737
2738 /* The value of the symbol. This really should be a union of a
2739 numeric value with a pointer, since some flags indicate that
2740 a pointer to another symbol is stored here. */
2741 symvalue value;
2742
2743 /* Attributes of a symbol: */
2744
2745 #define BSF_NO_FLAGS 0x00
2746
2747 /* The symbol has local scope; <<static>> in <<C>>. The value
2748 is the offset into the section of the data. */
2749 #define BSF_LOCAL 0x01
2750
2751 /* The symbol has global scope; initialized data in <<C>>. The
2752 value is the offset into the section of the data. */
2753 #define BSF_GLOBAL 0x02
2754
2755 /* The symbol has global scope and is exported. The value is
2756 the offset into the section of the data. */
2757 #define BSF_EXPORT BSF_GLOBAL /* no real difference */
2758
2759 /* A normal C symbol would be one of:
2760 <<BSF_LOCAL>>, <<BSF_FORT_COMM>>, <<BSF_UNDEFINED>> or
2761 <<BSF_GLOBAL>> */
2762
2763 /* The symbol is a debugging record. The value has an arbitary
2764 meaning, unless BSF_DEBUGGING_RELOC is also set. */
2765 #define BSF_DEBUGGING 0x08
2766
2767 /* The symbol denotes a function entry point. Used in ELF,
2768 perhaps others someday. */
2769 #define BSF_FUNCTION 0x10
2770
2771 /* Used by the linker. */
2772 #define BSF_KEEP 0x20
2773 #define BSF_KEEP_G 0x40
2774
2775 /* A weak global symbol, overridable without warnings by
2776 a regular global symbol of the same name. */
2777 #define BSF_WEAK 0x80
2778
2779 /* This symbol was created to point to a section, e.g. ELF's
2780 STT_SECTION symbols. */
2781 #define BSF_SECTION_SYM 0x100
2782
2783 /* The symbol used to be a common symbol, but now it is
2784 allocated. */
2785 #define BSF_OLD_COMMON 0x200
2786
2787 /* The default value for common data. */
2788 #define BFD_FORT_COMM_DEFAULT_VALUE 0
2789
2790 /* In some files the type of a symbol sometimes alters its
2791 location in an output file - ie in coff a <<ISFCN>> symbol
2792 which is also <<C_EXT>> symbol appears where it was
2793 declared and not at the end of a section. This bit is set
2794 by the target BFD part to convey this information. */
2795
2796 #define BSF_NOT_AT_END 0x400
2797
2798 /* Signal that the symbol is the label of constructor section. */
2799 #define BSF_CONSTRUCTOR 0x800
2800
2801 /* Signal that the symbol is a warning symbol. The name is a
2802 warning. The name of the next symbol is the one to warn about;
2803 if a reference is made to a symbol with the same name as the next
2804 symbol, a warning is issued by the linker. */
2805 #define BSF_WARNING 0x1000
2806
2807 /* Signal that the symbol is indirect. This symbol is an indirect
2808 pointer to the symbol with the same name as the next symbol. */
2809 #define BSF_INDIRECT 0x2000
2810
2811 /* BSF_FILE marks symbols that contain a file name. This is used
2812 for ELF STT_FILE symbols. */
2813 #define BSF_FILE 0x4000
2814
2815 /* Symbol is from dynamic linking information. */
2816 #define BSF_DYNAMIC 0x8000
2817
2818 /* The symbol denotes a data object. Used in ELF, and perhaps
2819 others someday. */
2820 #define BSF_OBJECT 0x10000
2821
2822 /* This symbol is a debugging symbol. The value is the offset
2823 into the section of the data. BSF_DEBUGGING should be set
2824 as well. */
2825 #define BSF_DEBUGGING_RELOC 0x20000
2826
2827 flagword flags;
2828
2829 /* A pointer to the section to which this symbol is
2830 relative. This will always be non NULL, there are special
2831 sections for undefined and absolute symbols. */
2832 struct sec *section;
2833
2834 /* Back end special data. */
2835 union
2836 {
2837 PTR p;
2838 bfd_vma i;
2839 } udata;
2840
2841 } asymbol;
2842 #define bfd_get_symtab_upper_bound(abfd) \
2843 BFD_SEND (abfd, _bfd_get_symtab_upper_bound, (abfd))
2844 boolean
2845 bfd_is_local_label PARAMS ((bfd *abfd, asymbol *sym));
2846
2847 boolean
2848 bfd_is_local_label_name PARAMS ((bfd *abfd, const char *name));
2849
2850 #define bfd_is_local_label_name(abfd, name) \
2851 BFD_SEND (abfd, _bfd_is_local_label_name, (abfd, name))
2852 #define bfd_canonicalize_symtab(abfd, location) \
2853 BFD_SEND (abfd, _bfd_canonicalize_symtab,\
2854 (abfd, location))
2855 boolean
2856 bfd_set_symtab PARAMS ((bfd *abfd, asymbol **location, unsigned int count));
2857
2858 void
2859 bfd_print_symbol_vandf PARAMS ((PTR file, asymbol *symbol));
2860
2861 #define bfd_make_empty_symbol(abfd) \
2862 BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd))
2863 #define bfd_make_debug_symbol(abfd,ptr,size) \
2864 BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size))
2865 int
2866 bfd_decode_symclass PARAMS ((asymbol *symbol));
2867
2868 boolean
2869 bfd_is_undefined_symclass PARAMS ((int symclass));
2870
2871 void
2872 bfd_symbol_info PARAMS ((asymbol *symbol, symbol_info *ret));
2873
2874 boolean
2875 bfd_copy_private_symbol_data PARAMS ((bfd *ibfd, asymbol *isym, bfd *obfd, asymbol *osym));
2876
2877 #define bfd_copy_private_symbol_data(ibfd, isymbol, obfd, osymbol) \
2878 BFD_SEND (obfd, _bfd_copy_private_symbol_data, \
2879 (ibfd, isymbol, obfd, osymbol))
2880 struct _bfd
2881 {
2882 /* The filename the application opened the BFD with. */
2883 CONST char *filename;
2884
2885 /* A pointer to the target jump table. */
2886 const struct bfd_target *xvec;
2887
2888 /* To avoid dragging too many header files into every file that
2889 includes `<<bfd.h>>', IOSTREAM has been declared as a "char
2890 *", and MTIME as a "long". Their correct types, to which they
2891 are cast when used, are "FILE *" and "time_t". The iostream
2892 is the result of an fopen on the filename. However, if the
2893 BFD_IN_MEMORY flag is set, then iostream is actually a pointer
2894 to a bfd_in_memory struct. */
2895 PTR iostream;
2896
2897 /* Is the file descriptor being cached? That is, can it be closed as
2898 needed, and re-opened when accessed later? */
2899
2900 boolean cacheable;
2901
2902 /* Marks whether there was a default target specified when the
2903 BFD was opened. This is used to select which matching algorithm
2904 to use to choose the back end. */
2905
2906 boolean target_defaulted;
2907
2908 /* The caching routines use these to maintain a
2909 least-recently-used list of BFDs */
2910
2911 struct _bfd *lru_prev, *lru_next;
2912
2913 /* When a file is closed by the caching routines, BFD retains
2914 state information on the file here: */
2915
2916 file_ptr where;
2917
2918 /* and here: (``once'' means at least once) */
2919
2920 boolean opened_once;
2921
2922 /* Set if we have a locally maintained mtime value, rather than
2923 getting it from the file each time: */
2924
2925 boolean mtime_set;
2926
2927 /* File modified time, if mtime_set is true: */
2928
2929 long mtime;
2930
2931 /* Reserved for an unimplemented file locking extension.*/
2932
2933 int ifd;
2934
2935 /* The format which belongs to the BFD. (object, core, etc.) */
2936
2937 bfd_format format;
2938
2939 /* The direction the BFD was opened with*/
2940
2941 enum bfd_direction {no_direction = 0,
2942 read_direction = 1,
2943 write_direction = 2,
2944 both_direction = 3} direction;
2945
2946 /* Format_specific flags*/
2947
2948 flagword flags;
2949
2950 /* Currently my_archive is tested before adding origin to
2951 anything. I believe that this can become always an add of
2952 origin, with origin set to 0 for non archive files. */
2953
2954 file_ptr origin;
2955
2956 /* Remember when output has begun, to stop strange things
2957 from happening. */
2958 boolean output_has_begun;
2959
2960 /* Pointer to linked list of sections*/
2961 struct sec *sections;
2962
2963 /* The number of sections */
2964 unsigned int section_count;
2965
2966 /* Stuff only useful for object files:
2967 The start address. */
2968 bfd_vma start_address;
2969
2970 /* Used for input and output*/
2971 unsigned int symcount;
2972
2973 /* Symbol table for output BFD (with symcount entries) */
2974 struct symbol_cache_entry **outsymbols;
2975
2976 /* Pointer to structure which contains architecture information*/
2977 const struct bfd_arch_info *arch_info;
2978
2979 /* Stuff only useful for archives:*/
2980 PTR arelt_data;
2981 struct _bfd *my_archive; /* The containing archive BFD. */
2982 struct _bfd *next; /* The next BFD in the archive. */
2983 struct _bfd *archive_head; /* The first BFD in the archive. */
2984 boolean has_armap;
2985
2986 /* A chain of BFD structures involved in a link. */
2987 struct _bfd *link_next;
2988
2989 /* A field used by _bfd_generic_link_add_archive_symbols. This will
2990 be used only for archive elements. */
2991 int archive_pass;
2992
2993 /* Used by the back end to hold private data. */
2994
2995 union
2996 {
2997 struct aout_data_struct *aout_data;
2998 struct artdata *aout_ar_data;
2999 struct _oasys_data *oasys_obj_data;
3000 struct _oasys_ar_data *oasys_ar_data;
3001 struct coff_tdata *coff_obj_data;
3002 struct pe_tdata *pe_obj_data;
3003 struct xcoff_tdata *xcoff_obj_data;
3004 struct ecoff_tdata *ecoff_obj_data;
3005 struct ieee_data_struct *ieee_data;
3006 struct ieee_ar_data_struct *ieee_ar_data;
3007 struct srec_data_struct *srec_data;
3008 struct ihex_data_struct *ihex_data;
3009 struct tekhex_data_struct *tekhex_data;
3010 struct elf_obj_tdata *elf_obj_data;
3011 struct nlm_obj_tdata *nlm_obj_data;
3012 struct bout_data_struct *bout_data;
3013 struct sun_core_struct *sun_core_data;
3014 struct sco5_core_struct *sco5_core_data;
3015 struct trad_core_struct *trad_core_data;
3016 struct som_data_struct *som_data;
3017 struct hpux_core_struct *hpux_core_data;
3018 struct hppabsd_core_struct *hppabsd_core_data;
3019 struct sgi_core_struct *sgi_core_data;
3020 struct lynx_core_struct *lynx_core_data;
3021 struct osf_core_struct *osf_core_data;
3022 struct cisco_core_struct *cisco_core_data;
3023 struct versados_data_struct *versados_data;
3024 struct netbsd_core_struct *netbsd_core_data;
3025 PTR any;
3026 } tdata;
3027
3028 /* Used by the application to hold private data*/
3029 PTR usrdata;
3030
3031 /* Where all the allocated stuff under this BFD goes. This is a
3032 struct objalloc *, but we use PTR to avoid requiring the inclusion of
3033 objalloc.h. */
3034 PTR memory;
3035 };
3036
3037 typedef enum bfd_error
3038 {
3039 bfd_error_no_error = 0,
3040 bfd_error_system_call,
3041 bfd_error_invalid_target,
3042 bfd_error_wrong_format,
3043 bfd_error_invalid_operation,
3044 bfd_error_no_memory,
3045 bfd_error_no_symbols,
3046 bfd_error_no_armap,
3047 bfd_error_no_more_archived_files,
3048 bfd_error_malformed_archive,
3049 bfd_error_file_not_recognized,
3050 bfd_error_file_ambiguously_recognized,
3051 bfd_error_no_contents,
3052 bfd_error_nonrepresentable_section,
3053 bfd_error_no_debug_section,
3054 bfd_error_bad_value,
3055 bfd_error_file_truncated,
3056 bfd_error_file_too_big,
3057 bfd_error_invalid_error_code
3058 } bfd_error_type;
3059
3060 bfd_error_type
3061 bfd_get_error PARAMS ((void));
3062
3063 void
3064 bfd_set_error PARAMS ((bfd_error_type error_tag));
3065
3066 CONST char *
3067 bfd_errmsg PARAMS ((bfd_error_type error_tag));
3068
3069 void
3070 bfd_perror PARAMS ((CONST char *message));
3071
3072 typedef void (*bfd_error_handler_type) PARAMS ((const char *, ...));
3073
3074 bfd_error_handler_type
3075 bfd_set_error_handler PARAMS ((bfd_error_handler_type));
3076
3077 void
3078 bfd_set_error_program_name PARAMS ((const char *));
3079
3080 bfd_error_handler_type
3081 bfd_get_error_handler PARAMS ((void));
3082
3083 long
3084 bfd_get_reloc_upper_bound PARAMS ((bfd *abfd, asection *sect));
3085
3086 long
3087 bfd_canonicalize_reloc PARAMS ((bfd *abfd,
3088 asection *sec,
3089 arelent **loc,
3090 asymbol **syms));
3091
3092 void
3093 bfd_set_reloc PARAMS ((bfd *abfd, asection *sec, arelent **rel, unsigned int count)
3094
3095 );
3096
3097 boolean
3098 bfd_set_file_flags PARAMS ((bfd *abfd, flagword flags));
3099
3100 int
3101 bfd_get_arch_size PARAMS ((bfd *abfd));
3102
3103 int
3104 bfd_get_sign_extend_vma PARAMS ((bfd *abfd));
3105
3106 boolean
3107 bfd_set_start_address PARAMS ((bfd *abfd, bfd_vma vma));
3108
3109 long
3110 bfd_get_mtime PARAMS ((bfd *abfd));
3111
3112 long
3113 bfd_get_size PARAMS ((bfd *abfd));
3114
3115 int
3116 bfd_get_gp_size PARAMS ((bfd *abfd));
3117
3118 void
3119 bfd_set_gp_size PARAMS ((bfd *abfd, int i));
3120
3121 bfd_vma
3122 bfd_scan_vma PARAMS ((CONST char *string, CONST char **end, int base));
3123
3124 boolean
3125 bfd_copy_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd));
3126
3127 #define bfd_copy_private_bfd_data(ibfd, obfd) \
3128 BFD_SEND (obfd, _bfd_copy_private_bfd_data, \
3129 (ibfd, obfd))
3130 boolean
3131 bfd_merge_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd));
3132
3133 #define bfd_merge_private_bfd_data(ibfd, obfd) \
3134 BFD_SEND (obfd, _bfd_merge_private_bfd_data, \
3135 (ibfd, obfd))
3136 boolean
3137 bfd_set_private_flags PARAMS ((bfd *abfd, flagword flags));
3138
3139 #define bfd_set_private_flags(abfd, flags) \
3140 BFD_SEND (abfd, _bfd_set_private_flags, \
3141 (abfd, flags))
3142 #define bfd_sizeof_headers(abfd, reloc) \
3143 BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc))
3144
3145 #define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
3146 BFD_SEND (abfd, _bfd_find_nearest_line, (abfd, sec, syms, off, file, func, line))
3147
3148 /* Do these three do anything useful at all, for any back end? */
3149 #define bfd_debug_info_start(abfd) \
3150 BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
3151
3152 #define bfd_debug_info_end(abfd) \
3153 BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
3154
3155 #define bfd_debug_info_accumulate(abfd, section) \
3156 BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
3157
3158
3159 #define bfd_stat_arch_elt(abfd, stat) \
3160 BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
3161
3162 #define bfd_update_armap_timestamp(abfd) \
3163 BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))
3164
3165 #define bfd_set_arch_mach(abfd, arch, mach)\
3166 BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
3167
3168 #define bfd_relax_section(abfd, section, link_info, again) \
3169 BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
3170
3171 #define bfd_gc_sections(abfd, link_info) \
3172 BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info))
3173
3174 #define bfd_link_hash_table_create(abfd) \
3175 BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
3176
3177 #define bfd_link_add_symbols(abfd, info) \
3178 BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
3179
3180 #define bfd_final_link(abfd, info) \
3181 BFD_SEND (abfd, _bfd_final_link, (abfd, info))
3182
3183 #define bfd_free_cached_info(abfd) \
3184 BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
3185
3186 #define bfd_get_dynamic_symtab_upper_bound(abfd) \
3187 BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
3188
3189 #define bfd_print_private_bfd_data(abfd, file)\
3190 BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file))
3191
3192 #define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
3193 BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
3194
3195 #define bfd_get_dynamic_reloc_upper_bound(abfd) \
3196 BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
3197
3198 #define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
3199 BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
3200
3201 extern bfd_byte *bfd_get_relocated_section_contents
3202 PARAMS ((bfd *, struct bfd_link_info *,
3203 struct bfd_link_order *, bfd_byte *,
3204 boolean, asymbol **));
3205
3206 symindex
3207 bfd_get_next_mapent PARAMS ((bfd *abfd, symindex previous, carsym **sym));
3208
3209 boolean
3210 bfd_set_archive_head PARAMS ((bfd *output, bfd *new_head));
3211
3212 bfd *
3213 bfd_openr_next_archived_file PARAMS ((bfd *archive, bfd *previous));
3214
3215 CONST char *
3216 bfd_core_file_failing_command PARAMS ((bfd *abfd));
3217
3218 int
3219 bfd_core_file_failing_signal PARAMS ((bfd *abfd));
3220
3221 boolean
3222 core_file_matches_executable_p PARAMS ((bfd *core_bfd, bfd *exec_bfd));
3223
3224 #define BFD_SEND(bfd, message, arglist) \
3225 ((*((bfd)->xvec->message)) arglist)
3226
3227 #ifdef DEBUG_BFD_SEND
3228 #undef BFD_SEND
3229 #define BFD_SEND(bfd, message, arglist) \
3230 (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
3231 ((*((bfd)->xvec->message)) arglist) : \
3232 (bfd_assert (__FILE__,__LINE__), NULL))
3233 #endif
3234 #define BFD_SEND_FMT(bfd, message, arglist) \
3235 (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist)
3236
3237 #ifdef DEBUG_BFD_SEND
3238 #undef BFD_SEND_FMT
3239 #define BFD_SEND_FMT(bfd, message, arglist) \
3240 (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
3241 (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist) : \
3242 (bfd_assert (__FILE__,__LINE__), NULL))
3243 #endif
3244 enum bfd_flavour {
3245 bfd_target_unknown_flavour,
3246 bfd_target_aout_flavour,
3247 bfd_target_coff_flavour,
3248 bfd_target_ecoff_flavour,
3249 bfd_target_xcoff_flavour,
3250 bfd_target_elf_flavour,
3251 bfd_target_ieee_flavour,
3252 bfd_target_nlm_flavour,
3253 bfd_target_oasys_flavour,
3254 bfd_target_tekhex_flavour,
3255 bfd_target_srec_flavour,
3256 bfd_target_ihex_flavour,
3257 bfd_target_som_flavour,
3258 bfd_target_os9k_flavour,
3259 bfd_target_versados_flavour,
3260 bfd_target_msdos_flavour,
3261 bfd_target_ovax_flavour,
3262 bfd_target_evax_flavour
3263 };
3264
3265 enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
3266
3267 /* Forward declaration. */
3268 typedef struct bfd_link_info _bfd_link_info;
3269
3270 typedef struct bfd_target
3271 {
3272 char *name;
3273 enum bfd_flavour flavour;
3274 enum bfd_endian byteorder;
3275 enum bfd_endian header_byteorder;
3276 flagword object_flags;
3277 flagword section_flags;
3278 char symbol_leading_char;
3279 char ar_pad_char;
3280 unsigned short ar_max_namelen;
3281 bfd_vma (*bfd_getx64) PARAMS ((const bfd_byte *));
3282 bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((const bfd_byte *));
3283 void (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *));
3284 bfd_vma (*bfd_getx32) PARAMS ((const bfd_byte *));
3285 bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((const bfd_byte *));
3286 void (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *));
3287 bfd_vma (*bfd_getx16) PARAMS ((const bfd_byte *));
3288 bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((const bfd_byte *));
3289 void (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *));
3290 bfd_vma (*bfd_h_getx64) PARAMS ((const bfd_byte *));
3291 bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((const bfd_byte *));
3292 void (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *));
3293 bfd_vma (*bfd_h_getx32) PARAMS ((const bfd_byte *));
3294 bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((const bfd_byte *));
3295 void (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *));
3296 bfd_vma (*bfd_h_getx16) PARAMS ((const bfd_byte *));
3297 bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((const bfd_byte *));
3298 void (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *));
3299 const struct bfd_target *(*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *));
3300 boolean (*_bfd_set_format[bfd_type_end]) PARAMS ((bfd *));
3301 boolean (*_bfd_write_contents[bfd_type_end]) PARAMS ((bfd *));
3302
3303 /* Generic entry points. */
3304 #define BFD_JUMP_TABLE_GENERIC(NAME)\
3305 CAT(NAME,_close_and_cleanup),\
3306 CAT(NAME,_bfd_free_cached_info),\
3307 CAT(NAME,_new_section_hook),\
3308 CAT(NAME,_get_section_contents),\
3309 CAT(NAME,_get_section_contents_in_window)
3310
3311 /* Called when the BFD is being closed to do any necessary cleanup. */
3312 boolean (*_close_and_cleanup) PARAMS ((bfd *));
3313 /* Ask the BFD to free all cached information. */
3314 boolean (*_bfd_free_cached_info) PARAMS ((bfd *));
3315 /* Called when a new section is created. */
3316 boolean (*_new_section_hook) PARAMS ((bfd *, sec_ptr));
3317 /* Read the contents of a section. */
3318 boolean (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
3319 file_ptr, bfd_size_type));
3320 boolean (*_bfd_get_section_contents_in_window)
3321 PARAMS ((bfd *, sec_ptr, bfd_window *,
3322 file_ptr, bfd_size_type));
3323
3324 /* Entry points to copy private data. */
3325 #define BFD_JUMP_TABLE_COPY(NAME)\
3326 CAT(NAME,_bfd_copy_private_bfd_data),\
3327 CAT(NAME,_bfd_merge_private_bfd_data),\
3328 CAT(NAME,_bfd_copy_private_section_data),\
3329 CAT(NAME,_bfd_copy_private_symbol_data),\
3330 CAT(NAME,_bfd_set_private_flags),\
3331 CAT(NAME,_bfd_print_private_bfd_data)\
3332 /* Called to copy BFD general private data from one object file
3333 to another. */
3334 boolean (*_bfd_copy_private_bfd_data) PARAMS ((bfd *, bfd *));
3335 /* Called to merge BFD general private data from one object file
3336 to a common output file when linking. */
3337 boolean (*_bfd_merge_private_bfd_data) PARAMS ((bfd *, bfd *));
3338 /* Called to copy BFD private section data from one object file
3339 to another. */
3340 boolean (*_bfd_copy_private_section_data) PARAMS ((bfd *, sec_ptr,
3341 bfd *, sec_ptr));
3342 /* Called to copy BFD private symbol data from one symbol
3343 to another. */
3344 boolean (*_bfd_copy_private_symbol_data) PARAMS ((bfd *, asymbol *,
3345 bfd *, asymbol *));
3346 /* Called to set private backend flags */
3347 boolean (*_bfd_set_private_flags) PARAMS ((bfd *, flagword));
3348
3349 /* Called to print private BFD data */
3350 boolean (*_bfd_print_private_bfd_data) PARAMS ((bfd *, PTR));
3351
3352 /* Core file entry points. */
3353 #define BFD_JUMP_TABLE_CORE(NAME)\
3354 CAT(NAME,_core_file_failing_command),\
3355 CAT(NAME,_core_file_failing_signal),\
3356 CAT(NAME,_core_file_matches_executable_p)
3357 char * (*_core_file_failing_command) PARAMS ((bfd *));
3358 int (*_core_file_failing_signal) PARAMS ((bfd *));
3359 boolean (*_core_file_matches_executable_p) PARAMS ((bfd *, bfd *));
3360
3361 /* Archive entry points. */
3362 #define BFD_JUMP_TABLE_ARCHIVE(NAME)\
3363 CAT(NAME,_slurp_armap),\
3364 CAT(NAME,_slurp_extended_name_table),\
3365 CAT(NAME,_construct_extended_name_table),\
3366 CAT(NAME,_truncate_arname),\
3367 CAT(NAME,_write_armap),\
3368 CAT(NAME,_read_ar_hdr),\
3369 CAT(NAME,_openr_next_archived_file),\
3370 CAT(NAME,_get_elt_at_index),\
3371 CAT(NAME,_generic_stat_arch_elt),\
3372 CAT(NAME,_update_armap_timestamp)
3373 boolean (*_bfd_slurp_armap) PARAMS ((bfd *));
3374 boolean (*_bfd_slurp_extended_name_table) PARAMS ((bfd *));
3375 boolean (*_bfd_construct_extended_name_table)
3376 PARAMS ((bfd *, char **, bfd_size_type *, const char **));
3377 void (*_bfd_truncate_arname) PARAMS ((bfd *, CONST char *, char *));
3378 boolean (*write_armap) PARAMS ((bfd *arch,
3379 unsigned int elength,
3380 struct orl *map,
3381 unsigned int orl_count,
3382 int stridx));
3383 PTR (*_bfd_read_ar_hdr_fn) PARAMS ((bfd *));
3384 bfd * (*openr_next_archived_file) PARAMS ((bfd *arch, bfd *prev));
3385 #define bfd_get_elt_at_index(b,i) BFD_SEND(b, _bfd_get_elt_at_index, (b,i))
3386 bfd * (*_bfd_get_elt_at_index) PARAMS ((bfd *, symindex));
3387 int (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *));
3388 boolean (*_bfd_update_armap_timestamp) PARAMS ((bfd *));
3389
3390 /* Entry points used for symbols. */
3391 #define BFD_JUMP_TABLE_SYMBOLS(NAME)\
3392 CAT(NAME,_get_symtab_upper_bound),\
3393 CAT(NAME,_get_symtab),\
3394 CAT(NAME,_make_empty_symbol),\
3395 CAT(NAME,_print_symbol),\
3396 CAT(NAME,_get_symbol_info),\
3397 CAT(NAME,_bfd_is_local_label_name),\
3398 CAT(NAME,_get_lineno),\
3399 CAT(NAME,_find_nearest_line),\
3400 CAT(NAME,_bfd_make_debug_symbol),\
3401 CAT(NAME,_read_minisymbols),\
3402 CAT(NAME,_minisymbol_to_symbol)
3403 long (*_bfd_get_symtab_upper_bound) PARAMS ((bfd *));
3404 long (*_bfd_canonicalize_symtab) PARAMS ((bfd *,
3405 struct symbol_cache_entry **));
3406 struct symbol_cache_entry *
3407 (*_bfd_make_empty_symbol) PARAMS ((bfd *));
3408 void (*_bfd_print_symbol) PARAMS ((bfd *, PTR,
3409 struct symbol_cache_entry *,
3410 bfd_print_symbol_type));
3411 #define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e))
3412 void (*_bfd_get_symbol_info) PARAMS ((bfd *,
3413 struct symbol_cache_entry *,
3414 symbol_info *));
3415 #define bfd_get_symbol_info(b,p,e) BFD_SEND(b, _bfd_get_symbol_info, (b,p,e))
3416 boolean (*_bfd_is_local_label_name) PARAMS ((bfd *, const char *));
3417
3418 alent * (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *));
3419 boolean (*_bfd_find_nearest_line) PARAMS ((bfd *abfd,
3420 struct sec *section, struct symbol_cache_entry **symbols,
3421 bfd_vma offset, CONST char **file, CONST char **func,
3422 unsigned int *line));
3423 /* Back-door to allow format-aware applications to create debug symbols
3424 while using BFD for everything else. Currently used by the assembler
3425 when creating COFF files. */
3426 asymbol * (*_bfd_make_debug_symbol) PARAMS ((
3427 bfd *abfd,
3428 void *ptr,
3429 unsigned long size));
3430 #define bfd_read_minisymbols(b, d, m, s) \
3431 BFD_SEND (b, _read_minisymbols, (b, d, m, s))
3432 long (*_read_minisymbols) PARAMS ((bfd *, boolean, PTR *,
3433 unsigned int *));
3434 #define bfd_minisymbol_to_symbol(b, d, m, f) \
3435 BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
3436 asymbol *(*_minisymbol_to_symbol) PARAMS ((bfd *, boolean, const PTR,
3437 asymbol *));
3438
3439 /* Routines for relocs. */
3440 #define BFD_JUMP_TABLE_RELOCS(NAME)\
3441 CAT(NAME,_get_reloc_upper_bound),\
3442 CAT(NAME,_canonicalize_reloc),\
3443 CAT(NAME,_bfd_reloc_type_lookup)
3444 long (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr));
3445 long (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **,
3446 struct symbol_cache_entry **));
3447 /* See documentation on reloc types. */
3448 reloc_howto_type *
3449 (*reloc_type_lookup) PARAMS ((bfd *abfd,
3450 bfd_reloc_code_real_type code));
3451
3452 /* Routines used when writing an object file. */
3453 #define BFD_JUMP_TABLE_WRITE(NAME)\
3454 CAT(NAME,_set_arch_mach),\
3455 CAT(NAME,_set_section_contents)
3456 boolean (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture,
3457 unsigned long));
3458 boolean (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
3459 file_ptr, bfd_size_type));
3460
3461 /* Routines used by the linker. */
3462 #define BFD_JUMP_TABLE_LINK(NAME)\
3463 CAT(NAME,_sizeof_headers),\
3464 CAT(NAME,_bfd_get_relocated_section_contents),\
3465 CAT(NAME,_bfd_relax_section),\
3466 CAT(NAME,_bfd_link_hash_table_create),\
3467 CAT(NAME,_bfd_link_add_symbols),\
3468 CAT(NAME,_bfd_final_link),\
3469 CAT(NAME,_bfd_link_split_section),\
3470 CAT(NAME,_bfd_gc_sections)
3471 int (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean));
3472 bfd_byte * (*_bfd_get_relocated_section_contents) PARAMS ((bfd *,
3473 struct bfd_link_info *, struct bfd_link_order *,
3474 bfd_byte *data, boolean relocateable,
3475 struct symbol_cache_entry **));
3476
3477 boolean (*_bfd_relax_section) PARAMS ((bfd *, struct sec *,
3478 struct bfd_link_info *, boolean *again));
3479
3480 /* Create a hash table for the linker. Different backends store
3481 different information in this table. */
3482 struct bfd_link_hash_table *(*_bfd_link_hash_table_create) PARAMS ((bfd *));
3483
3484 /* Add symbols from this object file into the hash table. */
3485 boolean (*_bfd_link_add_symbols) PARAMS ((bfd *, struct bfd_link_info *));
3486
3487 /* Do a link based on the link_order structures attached to each
3488 section of the BFD. */
3489 boolean (*_bfd_final_link) PARAMS ((bfd *, struct bfd_link_info *));
3490
3491 /* Should this section be split up into smaller pieces during linking. */
3492 boolean (*_bfd_link_split_section) PARAMS ((bfd *, struct sec *));
3493
3494 /* Remove sections that are not referenced from the output. */
3495 boolean (*_bfd_gc_sections) PARAMS ((bfd *, struct bfd_link_info *));
3496
3497 /* Routines to handle dynamic symbols and relocs. */
3498 #define BFD_JUMP_TABLE_DYNAMIC(NAME)\
3499 CAT(NAME,_get_dynamic_symtab_upper_bound),\
3500 CAT(NAME,_canonicalize_dynamic_symtab),\
3501 CAT(NAME,_get_dynamic_reloc_upper_bound),\
3502 CAT(NAME,_canonicalize_dynamic_reloc)
3503 /* Get the amount of memory required to hold the dynamic symbols. */
3504 long (*_bfd_get_dynamic_symtab_upper_bound) PARAMS ((bfd *));
3505 /* Read in the dynamic symbols. */
3506 long (*_bfd_canonicalize_dynamic_symtab)
3507 PARAMS ((bfd *, struct symbol_cache_entry **));
3508 /* Get the amount of memory required to hold the dynamic relocs. */
3509 long (*_bfd_get_dynamic_reloc_upper_bound) PARAMS ((bfd *));
3510 /* Read in the dynamic relocs. */
3511 long (*_bfd_canonicalize_dynamic_reloc)
3512 PARAMS ((bfd *, arelent **, struct symbol_cache_entry **));
3513
3514 /* Opposite endian version of this target. */
3515 const struct bfd_target * alternative_target;
3516
3517 PTR backend_data;
3518
3519 } bfd_target;
3520 boolean
3521 bfd_set_default_target PARAMS ((const char *name));
3522
3523 const bfd_target *
3524 bfd_find_target PARAMS ((CONST char *target_name, bfd *abfd));
3525
3526 const char **
3527 bfd_target_list PARAMS ((void));
3528
3529 const bfd_target *
3530 bfd_search_for_target PARAMS ((int (* search_func) (const bfd_target *, void *), void *));
3531
3532 boolean
3533 bfd_check_format PARAMS ((bfd *abfd, bfd_format format));
3534
3535 boolean
3536 bfd_check_format_matches PARAMS ((bfd *abfd, bfd_format format, char ***matching));
3537
3538 boolean
3539 bfd_set_format PARAMS ((bfd *abfd, bfd_format format));
3540
3541 CONST char *
3542 bfd_format_string PARAMS ((bfd_format format));
3543
3544 #ifdef __cplusplus
3545 }
3546 #endif
3547 #endif
This page took 0.10212 seconds and 4 git commands to generate.