1 /* Main header file for the bfd library -- portable access to object files.
2 Copyright 1990, 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
5 ** NOTE: bfd.h and bfd-in2.h are GENERATED files. Don't change them;
6 ** instead, change bfd-in.h or the other BFD source files processed to
7 ** generate these files.
9 This file is part of BFD, the Binary File Descriptor library.
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
25 /* bfd.h -- The only header file required by users of the bfd library
27 The bfd.h file is generated from bfd-in.h and various .c files; if you
28 change it, your changes will probably be lost.
30 All the prototypes and definitions following the comment "THE FOLLOWING
31 IS EXTRACTED FROM THE SOURCE" are extracted from the source files for
32 BFD. If you change it, someone oneday will extract it from the source
33 again, and your changes will be lost. To save yourself from this bind,
34 change the definitions in the source in the bfd directory. Type "make
35 docs" and then "make headers" in that directory, and magically this file
36 will change to reflect your changes.
38 If you don't have the tools to perform the extraction, then you are
39 safe from someone on your system trampling over your header files.
40 You should still maintain the equivalence between the source and this
41 file though; every change you make to the .c file should be reflected
44 #ifndef __BFD_H_SEEN__
45 #define __BFD_H_SEEN__
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@
59 #if BFD_ARCH_SIZE >= 64
65 #define INLINE __inline__
71 /* forward declaration */
72 typedef struct _bfd bfd;
74 /* To squelch erroneous compiler warnings ("illegal pointer
75 combination") from the SVR3 compiler, we would like to typedef
76 boolean to int (it doesn't like functions which return boolean.
77 Making sure they are never implicitly declared to return int
78 doesn't seem to help). But this file is not configured based on
80 /* General rules: functions which are boolean return true on success
81 and false on failure (unless they're a predicate). -- bfd.doc */
82 /* I'm sure this is going to break something and someone is going to
83 force me to change it. */
84 /* typedef enum boolean {false, true} boolean; */
85 /* Yup, SVR4 has a "typedef enum boolean" in <sys/types.h> -fnf */
86 /* It gets worse if the host also defines a true/false enum... -sts */
87 /* And even worse if your compiler has built-in boolean types... -law */
88 #if defined (__GNUG__) && (__GNUC_MINOR__ > 5)
89 #define TRUE_FALSE_ALREADY_DEFINED
92 /* Pre-emptive strike - get the file with the enum. */
94 #define TRUE_FALSE_ALREADY_DEFINED
96 #ifndef TRUE_FALSE_ALREADY_DEFINED
97 typedef enum bfd_boolean {false, true} boolean;
98 #define BFD_TRUE_FALSE
100 /* Use enum names that will appear nowhere else. */
101 typedef enum bfd_boolean {bfd_fffalse, bfd_tttrue} boolean;
104 /* A pointer to a position in a file. */
105 /* FIXME: This should be using off_t from <sys/types.h>.
106 For now, try to avoid breaking stuff by not including <sys/types.h> here.
107 This will break on systems with 64-bit file offsets (e.g. 4.4BSD).
108 Probably the best long-term answer is to avoid using file_ptr AND off_t
109 in this header file, and to handle this in the BFD implementation
110 rather than in its interface. */
111 /* typedef off_t file_ptr; */
112 typedef long int file_ptr;
114 /* Support for different sizes of target format ints and addresses.
115 If the type `long' is at least 64 bits, BFD_HOST_64BIT_LONG will be
116 set to 1 above. Otherwise, if gcc is being used, this code will
117 use gcc's "long long" type. Otherwise, the compilation will fail
118 if 64-bit targets are requested. */
122 #ifndef BFD_HOST_64_BIT
123 #if BFD_HOST_64BIT_LONG
124 #define BFD_HOST_64_BIT long
127 #define BFD_HOST_64_BIT long long
128 #endif /* defined (__GNUC__) */
129 #endif /* ! BFD_HOST_64BIT_LONG */
130 #endif /* ! defined (BFD_HOST_64_BIT) */
132 typedef unsigned BFD_HOST_64_BIT bfd_vma;
133 typedef BFD_HOST_64_BIT bfd_signed_vma;
134 typedef unsigned BFD_HOST_64_BIT bfd_size_type;
135 typedef unsigned BFD_HOST_64_BIT symvalue;
138 #if BFD_HOST_64BIT_LONG
139 #define sprintf_vma(s,x) sprintf (s, "%016lx", x)
140 #define fprintf_vma(f,x) fprintf (f, "%016lx", x)
142 #define _bfd_int64_low(x) ((unsigned long) (((x) & 0xffffffff)))
143 #define _bfd_int64_high(x) ((unsigned long) (((x) >> 32) & 0xffffffff))
144 #define fprintf_vma(s,x) \
145 fprintf ((s), "%08lx%08lx", _bfd_int64_high (x), _bfd_int64_low (x))
146 #define sprintf_vma(s,x) \
147 sprintf ((s), "%08lx%08lx", _bfd_int64_high (x), _bfd_int64_low (x))
151 #else /* not BFD64 */
153 /* Represent a target address. Also used as a generic unsigned type
154 which is guaranteed to be big enough to hold any arithmetic types
155 we need to deal with. */
156 typedef unsigned long bfd_vma;
158 /* A generic signed type which is guaranteed to be big enough to hold any
159 arithmetic types we need to deal with. Can be assumed to be compatible
160 with bfd_vma in the same way that signed and unsigned ints are compatible
161 (as parameters, in assignment, etc). */
162 typedef long bfd_signed_vma;
164 typedef unsigned long symvalue;
165 typedef unsigned long bfd_size_type;
167 /* Print a bfd_vma x on stream s. */
168 #define fprintf_vma(s,x) fprintf(s, "%08lx", x)
169 #define sprintf_vma(s,x) sprintf(s, "%08lx", x)
170 #endif /* not BFD64 */
171 #define printf_vma(x) fprintf_vma(stdout,x)
173 typedef unsigned int flagword; /* 32 bits of flags */
174 typedef unsigned char bfd_byte;
178 typedef enum bfd_format {
179 bfd_unknown = 0, /* file format is unknown */
180 bfd_object, /* linker/assember/compiler output */
181 bfd_archive, /* object archive file */
182 bfd_core, /* core dump */
183 bfd_type_end} /* marks the end; don't use it! */
186 /* Values that may appear in the flags field of a BFD. These also
187 appear in the object_flags field of the bfd_target structure, where
188 they indicate the set of flags used by that backend (not all flags
189 are meaningful for all object file formats) (FIXME: at the moment,
190 the object_flags values have mostly just been copied from backend
191 to another, and are not necessarily correct). */
194 #define NO_FLAGS 0x00
196 /* BFD contains relocation entries. */
197 #define HAS_RELOC 0x01
199 /* BFD is directly executable. */
202 /* BFD has line number information (basically used for F_LNNO in a
204 #define HAS_LINENO 0x04
206 /* BFD has debugging information. */
207 #define HAS_DEBUG 0x08
209 /* BFD has symbols. */
210 #define HAS_SYMS 0x10
212 /* BFD has local symbols (basically used for F_LSYMS in a COFF
214 #define HAS_LOCALS 0x20
216 /* BFD is a dynamic object. */
219 /* Text section is write protected (if D_PAGED is not set, this is
220 like an a.out NMAGIC file) (the linker sets this by default, but
221 clears it for -r or -N). */
224 /* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the
225 linker sets this by default, but clears it for -r or -n or -N). */
226 #define D_PAGED 0x100
228 /* BFD is relaxable (this means that bfd_relax_section may be able to
229 do something) (sometimes bfd_relax_section can do something even if
231 #define BFD_IS_RELAXABLE 0x200
233 /* This may be set before writing out a BFD to request using a
234 traditional format. For example, this is used to request that when
235 writing out an a.out object the symbols not be hashed to eliminate
237 #define BFD_TRADITIONAL_FORMAT 0x400
239 /* This flag indicates that the BFD contents are actually cached in
240 memory. If this is set, iostream points to a bfd_in_memory struct. */
241 #define BFD_IN_MEMORY 0x800
243 /* symbols and relocation */
245 /* A count of carsyms (canonical archive symbols). */
246 typedef unsigned long symindex;
248 /* How to perform a relocation. */
249 typedef const struct reloc_howto_struct reloc_howto_type;
251 #define BFD_NO_MORE_SYMBOLS ((symindex) ~0)
253 /* General purpose part of a symbol X;
254 target specific parts are in libcoff.h, libaout.h, etc. */
256 #define bfd_get_section(x) ((x)->section)
257 #define bfd_get_output_section(x) ((x)->section->output_section)
258 #define bfd_set_section(x,y) ((x)->section) = (y)
259 #define bfd_asymbol_base(x) ((x)->section->vma)
260 #define bfd_asymbol_value(x) (bfd_asymbol_base(x) + (x)->value)
261 #define bfd_asymbol_name(x) ((x)->name)
262 /*Perhaps future: #define bfd_asymbol_bfd(x) ((x)->section->owner)*/
263 #define bfd_asymbol_bfd(x) ((x)->the_bfd)
264 #define bfd_asymbol_flavour(x) (bfd_asymbol_bfd(x)->xvec->flavour)
266 /* A canonical archive symbol. */
267 /* This is a type pun with struct ranlib on purpose! */
268 typedef struct carsym {
270 file_ptr file_offset; /* look here to find the file */
271 } carsym; /* to make these you call a carsymogen */
274 /* Used in generating armaps (archive tables of contents).
275 Perhaps just a forward definition would do? */
276 struct orl { /* output ranlib */
277 char **name; /* symbol name */
278 file_ptr pos; /* bfd* or file position */
279 int namidx; /* index into string table */
283 /* Linenumber stuff */
284 typedef struct lineno_cache_entry {
285 unsigned int line_number; /* Linenumber from start of function*/
287 struct symbol_cache_entry *sym; /* Function name */
288 unsigned long offset; /* Offset into section */
292 /* object and core file sections */
294 #define align_power(addr, align) \
295 ( ((addr) + ((1<<(align))-1)) & (-1 << (align)))
297 typedef struct sec *sec_ptr;
299 #define bfd_get_section_name(bfd, ptr) ((ptr)->name + 0)
300 #define bfd_get_section_vma(bfd, ptr) ((ptr)->vma + 0)
301 #define bfd_get_section_alignment(bfd, ptr) ((ptr)->alignment_power + 0)
302 #define bfd_section_name(bfd, ptr) ((ptr)->name)
303 #define bfd_section_size(bfd, ptr) (bfd_get_section_size_before_reloc(ptr))
304 #define bfd_section_vma(bfd, ptr) ((ptr)->vma)
305 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power)
306 #define bfd_get_section_flags(bfd, ptr) ((ptr)->flags + 0)
307 #define bfd_get_section_userdata(bfd, ptr) ((ptr)->userdata)
309 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0)
311 #define bfd_set_section_vma(bfd, ptr, val) (((ptr)->vma = (ptr)->lma= (val)), ((ptr)->user_set_vma = (boolean)true), true)
312 #define bfd_set_section_alignment(bfd, ptr, val) (((ptr)->alignment_power = (val)),true)
313 #define bfd_set_section_userdata(bfd, ptr, val) (((ptr)->userdata = (val)),true)
315 typedef struct stat stat_type;
317 typedef enum bfd_print_symbol
319 bfd_print_symbol_name,
320 bfd_print_symbol_more,
322 } bfd_print_symbol_type;
324 /* Information about a symbol that nm needs. */
326 typedef struct _symbol_info
330 CONST char *name; /* Symbol name. */
331 unsigned char stab_type; /* Stab type. */
332 char stab_other; /* Stab other. */
333 short stab_desc; /* Stab desc. */
334 CONST char *stab_name; /* String for stab type. */
337 /* Get the name of a stabs type code. */
339 extern const char *bfd_get_stab_name PARAMS ((int));
341 /* Hash table routines. There is no way to free up a hash table. */
343 /* An element in the hash table. Most uses will actually use a larger
344 structure, and an instance of this will be the first field. */
346 struct bfd_hash_entry
348 /* Next entry for this hash code. */
349 struct bfd_hash_entry *next;
350 /* String being hashed. */
352 /* Hash code. This is the full hash code, not the index into the
359 struct bfd_hash_table
361 /* The hash array. */
362 struct bfd_hash_entry **table;
363 /* The number of slots in the hash table. */
365 /* A function used to create new elements in the hash table. The
366 first entry is itself a pointer to an element. When this
367 function is first invoked, this pointer will be NULL. However,
368 having the pointer permits a hierarchy of method functions to be
369 built each of which calls the function in the superclass. Thus
370 each function should be written to allocate a new block of memory
371 only if the argument is NULL. */
372 struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
373 struct bfd_hash_table *,
375 /* An obstack for this hash table. */
376 struct obstack memory;
379 /* Initialize a hash table. */
380 extern boolean bfd_hash_table_init
381 PARAMS ((struct bfd_hash_table *,
382 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
383 struct bfd_hash_table *,
386 /* Initialize a hash table specifying a size. */
387 extern boolean bfd_hash_table_init_n
388 PARAMS ((struct bfd_hash_table *,
389 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
390 struct bfd_hash_table *,
394 /* Free up a hash table. */
395 extern void bfd_hash_table_free PARAMS ((struct bfd_hash_table *));
397 /* Look up a string in a hash table. If CREATE is true, a new entry
398 will be created for this string if one does not already exist. The
399 COPY argument must be true if this routine should copy the string
400 into newly allocated memory when adding an entry. */
401 extern struct bfd_hash_entry *bfd_hash_lookup
402 PARAMS ((struct bfd_hash_table *, const char *, boolean create,
405 /* Replace an entry in a hash table. */
406 extern void bfd_hash_replace
407 PARAMS ((struct bfd_hash_table *, struct bfd_hash_entry *old,
408 struct bfd_hash_entry *nw));
410 /* Base method for creating a hash table entry. */
411 extern struct bfd_hash_entry *bfd_hash_newfunc
412 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *,
415 /* Grab some space for a hash table entry. */
416 extern PTR bfd_hash_allocate PARAMS ((struct bfd_hash_table *,
419 /* Traverse a hash table in a random order, calling a function on each
420 element. If the function returns false, the traversal stops. The
421 INFO argument is passed to the function. */
422 extern void bfd_hash_traverse PARAMS ((struct bfd_hash_table *,
423 boolean (*) (struct bfd_hash_entry *,
427 /* Semi-portable string concatenation in cpp.
428 The CAT4 hack is to avoid a problem with some strict ANSI C preprocessors.
429 The problem is, "32_" is not a valid preprocessing token, and we don't
430 want extra underscores (e.g., "nlm_32_"). The XCAT2 macro will cause the
431 inner CAT macros to be evaluated first, producing still-valid pp-tokens.
432 Then the final concatenation can be done. (Sigh.) */
435 #define CAT(a,b) a##b
436 #define CAT3(a,b,c) a##b##c
437 #define CAT4(a,b,c,d) a##b##c##d
439 #if defined(__STDC__) || defined(ALMOST_STDC)
440 #define CAT(a,b) a##b
441 #define CAT3(a,b,c) a##b##c
442 #define XCAT2(a,b) CAT(a,b)
443 #define CAT4(a,b,c,d) XCAT2(CAT(a,b),CAT(c,d))
445 #define CAT(a,b) a/**/b
446 #define CAT3(a,b,c) a/**/b/**/c
447 #define CAT4(a,b,c,d) a/**/b/**/c/**/d
452 #define COFF_SWAP_TABLE (PTR) &bfd_coff_std_swap_table
454 /* User program access to BFD facilities */
456 /* Direct I/O routines, for programs which know more about the object
457 file than BFD does. Use higher level routines if possible. */
459 extern bfd_size_type bfd_read
460 PARAMS ((PTR, bfd_size_type size, bfd_size_type nitems, bfd *abfd));
461 extern bfd_size_type bfd_write
462 PARAMS ((const PTR, bfd_size_type size, bfd_size_type nitems, bfd *abfd));
463 extern int bfd_seek PARAMS ((bfd *abfd, file_ptr fp, int direction));
464 extern long bfd_tell PARAMS ((bfd *abfd));
465 extern int bfd_flush PARAMS ((bfd *abfd));
466 extern int bfd_stat PARAMS ((bfd *abfd, struct stat *));
469 /* Cast from const char * to char * so that caller can assign to
470 a char * without a warning. */
471 #define bfd_get_filename(abfd) ((char *) (abfd)->filename)
472 #define bfd_get_cacheable(abfd) ((abfd)->cacheable)
473 #define bfd_get_format(abfd) ((abfd)->format)
474 #define bfd_get_target(abfd) ((abfd)->xvec->name)
475 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour)
476 #define bfd_big_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG)
477 #define bfd_little_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_LITTLE)
478 #define bfd_header_big_endian(abfd) \
479 ((abfd)->xvec->header_byteorder == BFD_ENDIAN_BIG)
480 #define bfd_header_little_endian(abfd) \
481 ((abfd)->xvec->header_byteorder == BFD_ENDIAN_LITTLE)
482 #define bfd_get_file_flags(abfd) ((abfd)->flags)
483 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
484 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
485 #define bfd_my_archive(abfd) ((abfd)->my_archive)
486 #define bfd_has_map(abfd) ((abfd)->has_armap)
488 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
489 #define bfd_usrdata(abfd) ((abfd)->usrdata)
491 #define bfd_get_start_address(abfd) ((abfd)->start_address)
492 #define bfd_get_symcount(abfd) ((abfd)->symcount)
493 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
494 #define bfd_count_sections(abfd) ((abfd)->section_count)
496 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
498 #define bfd_set_cacheable(abfd,bool) (((abfd)->cacheable = (boolean)(bool)), true)
500 extern boolean bfd_record_phdr
501 PARAMS ((bfd *, unsigned long, boolean, flagword, boolean, bfd_vma,
502 boolean, boolean, unsigned int, struct sec **));
504 /* Byte swapping routines. */
506 bfd_vma bfd_getb64 PARAMS ((const unsigned char *));
507 bfd_vma bfd_getl64 PARAMS ((const unsigned char *));
508 bfd_signed_vma bfd_getb_signed_64 PARAMS ((const unsigned char *));
509 bfd_signed_vma bfd_getl_signed_64 PARAMS ((const unsigned char *));
510 bfd_vma bfd_getb32 PARAMS ((const unsigned char *));
511 bfd_vma bfd_getl32 PARAMS ((const unsigned char *));
512 bfd_signed_vma bfd_getb_signed_32 PARAMS ((const unsigned char *));
513 bfd_signed_vma bfd_getl_signed_32 PARAMS ((const unsigned char *));
514 bfd_vma bfd_getb16 PARAMS ((const unsigned char *));
515 bfd_vma bfd_getl16 PARAMS ((const unsigned char *));
516 bfd_signed_vma bfd_getb_signed_16 PARAMS ((const unsigned char *));
517 bfd_signed_vma bfd_getl_signed_16 PARAMS ((const unsigned char *));
518 void bfd_putb64 PARAMS ((bfd_vma, unsigned char *));
519 void bfd_putl64 PARAMS ((bfd_vma, unsigned char *));
520 void bfd_putb32 PARAMS ((bfd_vma, unsigned char *));
521 void bfd_putl32 PARAMS ((bfd_vma, unsigned char *));
522 void bfd_putb16 PARAMS ((bfd_vma, unsigned char *));
523 void bfd_putl16 PARAMS ((bfd_vma, unsigned char *));
525 /* Externally visible ECOFF routines. */
527 #if defined(__STDC__) || defined(ALMOST_STDC)
528 struct ecoff_debug_info;
529 struct ecoff_debug_swap;
531 struct symbol_cache_entry;
532 struct bfd_link_info;
533 struct bfd_link_hash_entry;
535 extern bfd_vma bfd_ecoff_get_gp_value PARAMS ((bfd * abfd));
536 extern boolean bfd_ecoff_set_gp_value PARAMS ((bfd *abfd, bfd_vma gp_value));
537 extern boolean bfd_ecoff_set_regmasks
538 PARAMS ((bfd *abfd, unsigned long gprmask, unsigned long fprmask,
539 unsigned long *cprmask));
540 extern PTR bfd_ecoff_debug_init
541 PARAMS ((bfd *output_bfd, struct ecoff_debug_info *output_debug,
542 const struct ecoff_debug_swap *output_swap,
543 struct bfd_link_info *));
544 extern void bfd_ecoff_debug_free
545 PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
546 const struct ecoff_debug_swap *output_swap,
547 struct bfd_link_info *));
548 extern boolean bfd_ecoff_debug_accumulate
549 PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
550 const struct ecoff_debug_swap *output_swap,
551 bfd *input_bfd, struct ecoff_debug_info *input_debug,
552 const struct ecoff_debug_swap *input_swap,
553 struct bfd_link_info *));
554 extern boolean bfd_ecoff_debug_accumulate_other
555 PARAMS ((PTR handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
556 const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
557 struct bfd_link_info *));
558 extern boolean bfd_ecoff_debug_externals
559 PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
560 const struct ecoff_debug_swap *swap,
561 boolean relocateable,
562 boolean (*get_extr) (struct symbol_cache_entry *,
563 struct ecoff_extr *),
564 void (*set_index) (struct symbol_cache_entry *,
566 extern boolean bfd_ecoff_debug_one_external
567 PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
568 const struct ecoff_debug_swap *swap,
569 const char *name, struct ecoff_extr *esym));
570 extern bfd_size_type bfd_ecoff_debug_size
571 PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
572 const struct ecoff_debug_swap *swap));
573 extern boolean bfd_ecoff_write_debug
574 PARAMS ((bfd *abfd, struct ecoff_debug_info *debug,
575 const struct ecoff_debug_swap *swap, file_ptr where));
576 extern boolean bfd_ecoff_write_accumulated_debug
577 PARAMS ((PTR handle, bfd *abfd, struct ecoff_debug_info *debug,
578 const struct ecoff_debug_swap *swap,
579 struct bfd_link_info *info, file_ptr where));
580 extern boolean bfd_mips_ecoff_create_embedded_relocs
581 PARAMS ((bfd *, struct bfd_link_info *, struct sec *, struct sec *,
584 /* Externally visible ELF routines. */
586 struct bfd_link_needed_list
588 struct bfd_link_needed_list *next;
593 extern boolean bfd_elf32_record_link_assignment
594 PARAMS ((bfd *, struct bfd_link_info *, const char *, boolean));
595 extern boolean bfd_elf64_record_link_assignment
596 PARAMS ((bfd *, struct bfd_link_info *, const char *, boolean));
597 extern struct bfd_link_needed_list *bfd_elf_get_needed_list
598 PARAMS ((bfd *, struct bfd_link_info *));
599 extern boolean bfd_elf32_size_dynamic_sections
600 PARAMS ((bfd *, const char *, const char *, boolean,
601 struct bfd_link_info *, struct sec **));
602 extern boolean bfd_elf64_size_dynamic_sections
603 PARAMS ((bfd *, const char *, const char *, boolean,
604 struct bfd_link_info *, struct sec **));
605 extern void bfd_elf_set_dt_needed_name PARAMS ((bfd *, const char *));
606 extern const char *bfd_elf_get_dt_soname PARAMS ((bfd *));
608 /* SunOS shared library support routines for the linker. */
610 extern struct bfd_link_needed_list *bfd_sunos_get_needed_list
611 PARAMS ((bfd *, struct bfd_link_info *));
612 extern boolean bfd_sunos_record_link_assignment
613 PARAMS ((bfd *, struct bfd_link_info *, const char *));
614 extern boolean bfd_sunos_size_dynamic_sections
615 PARAMS ((bfd *, struct bfd_link_info *, struct sec **, struct sec **,
618 /* Linux shared library support routines for the linker. */
620 extern boolean bfd_i386linux_size_dynamic_sections
621 PARAMS ((bfd *, struct bfd_link_info *));
622 extern boolean bfd_m68klinux_size_dynamic_sections
623 PARAMS ((bfd *, struct bfd_link_info *));
627 struct _bfd_window_internal;
628 typedef struct _bfd_window_internal bfd_window_internal;
630 typedef struct _bfd_window {
631 /* What the user asked for. */
634 /* The actual window used by BFD. Small user-requested read-only
635 regions sharing a page may share a single window into the object
636 file. Read-write versions shouldn't until I've fixed things to
637 keep track of which portions have been claimed by the
638 application; don't want to give the same region back when the
639 application wants two writable copies! */
640 struct _bfd_window_internal *i;
643 extern void bfd_init_window PARAMS ((bfd_window *));
644 extern void bfd_free_window PARAMS ((bfd_window *));
645 extern boolean bfd_get_file_window
646 PARAMS ((bfd *, file_ptr, bfd_size_type, bfd_window *, boolean));
648 /* XCOFF support routines for the linker. */
650 extern boolean bfd_xcoff_link_record_set
651 PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *,
653 extern boolean bfd_xcoff_import_symbol
654 PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *,
655 bfd_vma, const char *, const char *, const char *));
656 extern boolean bfd_xcoff_export_symbol
657 PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *,
659 extern boolean bfd_xcoff_link_count_reloc
660 PARAMS ((bfd *, struct bfd_link_info *, const char *));
661 extern boolean bfd_xcoff_record_link_assignment
662 PARAMS ((bfd *, struct bfd_link_info *, const char *));
663 extern boolean bfd_xcoff_size_dynamic_sections
664 PARAMS ((bfd *, struct bfd_link_info *, const char *, const char *,
665 unsigned long, unsigned long, unsigned long, boolean,
666 int, boolean, boolean, struct sec **));
668 /* And more from the source. */
670 bfd_init PARAMS ((void));
673 bfd_openr PARAMS ((CONST char *filename, CONST char *target));
676 bfd_fdopenr PARAMS ((CONST char *filename, CONST char *target, int fd));
679 bfd_openstreamr PARAMS (());
682 bfd_openw PARAMS ((CONST char *filename, CONST char *target));
685 bfd_close PARAMS ((bfd *abfd));
688 bfd_close_all_done PARAMS ((bfd *));
691 bfd_alloc_size PARAMS ((bfd *abfd));
694 bfd_create PARAMS ((CONST char *filename, bfd *templ));
697 /* Byte swapping macros for user section data. */
699 #define bfd_put_8(abfd, val, ptr) \
700 (*((unsigned char *)(ptr)) = (unsigned char)(val))
701 #define bfd_put_signed_8 \
703 #define bfd_get_8(abfd, ptr) \
704 (*(unsigned char *)(ptr))
705 #define bfd_get_signed_8(abfd, ptr) \
706 ((*(unsigned char *)(ptr) ^ 0x80) - 0x80)
708 #define bfd_put_16(abfd, val, ptr) \
709 BFD_SEND(abfd, bfd_putx16, ((val),(ptr)))
710 #define bfd_put_signed_16 \
712 #define bfd_get_16(abfd, ptr) \
713 BFD_SEND(abfd, bfd_getx16, (ptr))
714 #define bfd_get_signed_16(abfd, ptr) \
715 BFD_SEND (abfd, bfd_getx_signed_16, (ptr))
717 #define bfd_put_32(abfd, val, ptr) \
718 BFD_SEND(abfd, bfd_putx32, ((val),(ptr)))
719 #define bfd_put_signed_32 \
721 #define bfd_get_32(abfd, ptr) \
722 BFD_SEND(abfd, bfd_getx32, (ptr))
723 #define bfd_get_signed_32(abfd, ptr) \
724 BFD_SEND(abfd, bfd_getx_signed_32, (ptr))
726 #define bfd_put_64(abfd, val, ptr) \
727 BFD_SEND(abfd, bfd_putx64, ((val), (ptr)))
728 #define bfd_put_signed_64 \
730 #define bfd_get_64(abfd, ptr) \
731 BFD_SEND(abfd, bfd_getx64, (ptr))
732 #define bfd_get_signed_64(abfd, ptr) \
733 BFD_SEND(abfd, bfd_getx_signed_64, (ptr))
736 /* Byte swapping macros for file header data. */
738 #define bfd_h_put_8(abfd, val, ptr) \
739 bfd_put_8 (abfd, val, ptr)
740 #define bfd_h_put_signed_8(abfd, val, ptr) \
741 bfd_put_8 (abfd, val, ptr)
742 #define bfd_h_get_8(abfd, ptr) \
743 bfd_get_8 (abfd, ptr)
744 #define bfd_h_get_signed_8(abfd, ptr) \
745 bfd_get_signed_8 (abfd, ptr)
747 #define bfd_h_put_16(abfd, val, ptr) \
748 BFD_SEND(abfd, bfd_h_putx16,(val,ptr))
749 #define bfd_h_put_signed_16 \
751 #define bfd_h_get_16(abfd, ptr) \
752 BFD_SEND(abfd, bfd_h_getx16,(ptr))
753 #define bfd_h_get_signed_16(abfd, ptr) \
754 BFD_SEND(abfd, bfd_h_getx_signed_16, (ptr))
756 #define bfd_h_put_32(abfd, val, ptr) \
757 BFD_SEND(abfd, bfd_h_putx32,(val,ptr))
758 #define bfd_h_put_signed_32 \
760 #define bfd_h_get_32(abfd, ptr) \
761 BFD_SEND(abfd, bfd_h_getx32,(ptr))
762 #define bfd_h_get_signed_32(abfd, ptr) \
763 BFD_SEND(abfd, bfd_h_getx_signed_32, (ptr))
765 #define bfd_h_put_64(abfd, val, ptr) \
766 BFD_SEND(abfd, bfd_h_putx64,(val, ptr))
767 #define bfd_h_put_signed_64 \
769 #define bfd_h_get_64(abfd, ptr) \
770 BFD_SEND(abfd, bfd_h_getx64,(ptr))
771 #define bfd_h_get_signed_64(abfd, ptr) \
772 BFD_SEND(abfd, bfd_h_getx_signed_64, (ptr))
776 /* The name of the section; the name isn't a copy, the pointer is
777 the same as that passed to bfd_make_section. */
781 /* Which section is it; 0..nth. */
785 /* The next section in the list belonging to the BFD, or NULL. */
789 /* The field flags contains attributes of the section. Some
790 flags are read in from the object file, and some are
791 synthesized from other information. */
795 #define SEC_NO_FLAGS 0x000
797 /* Tells the OS to allocate space for this section when loading.
798 This is clear for a section containing debug information
800 #define SEC_ALLOC 0x001
802 /* Tells the OS to load the section from the file when loading.
803 This is clear for a .bss section. */
804 #define SEC_LOAD 0x002
806 /* The section contains data still to be relocated, so there is
807 some relocation information too. */
808 #define SEC_RELOC 0x004
810 #if 0 /* Obsolete ? */
811 #define SEC_BALIGN 0x008
814 /* A signal to the OS that the section contains read only
816 #define SEC_READONLY 0x010
818 /* The section contains code only. */
819 #define SEC_CODE 0x020
821 /* The section contains data only. */
822 #define SEC_DATA 0x040
824 /* The section will reside in ROM. */
825 #define SEC_ROM 0x080
827 /* The section contains constructor information. This section
828 type is used by the linker to create lists of constructors and
829 destructors used by <<g++>>. When a back end sees a symbol
830 which should be used in a constructor list, it creates a new
831 section for the type of name (e.g., <<__CTOR_LIST__>>), attaches
832 the symbol to it, and builds a relocation. To build the lists
833 of constructors, all the linker has to do is catenate all the
834 sections called <<__CTOR_LIST__>> and relocate the data
835 contained within - exactly the operations it would peform on
837 #define SEC_CONSTRUCTOR 0x100
839 /* The section is a constuctor, and should be placed at the
840 end of the text, data, or bss section(?). */
841 #define SEC_CONSTRUCTOR_TEXT 0x1100
842 #define SEC_CONSTRUCTOR_DATA 0x2100
843 #define SEC_CONSTRUCTOR_BSS 0x3100
845 /* The section has contents - a data section could be
846 <<SEC_ALLOC>> | <<SEC_HAS_CONTENTS>>; a debug section could be
847 <<SEC_HAS_CONTENTS>> */
848 #define SEC_HAS_CONTENTS 0x200
850 /* An instruction to the linker to not output the section
851 even if it has information which would normally be written. */
852 #define SEC_NEVER_LOAD 0x400
854 /* The section is a COFF shared library section. This flag is
855 only for the linker. If this type of section appears in
856 the input file, the linker must copy it to the output file
857 without changing the vma or size. FIXME: Although this
858 was originally intended to be general, it really is COFF
859 specific (and the flag was renamed to indicate this). It
860 might be cleaner to have some more general mechanism to
861 allow the back end to control what the linker does with
863 #define SEC_COFF_SHARED_LIBRARY 0x800
865 /* The section is a common section (symbols may be defined
866 multiple times, the value of a symbol is the amount of
867 space it requires, and the largest symbol value is the one
868 used). Most targets have exactly one of these (which we
869 translate to bfd_com_section_ptr), but ECOFF has two. */
870 #define SEC_IS_COMMON 0x8000
872 /* The section contains only debugging information. For
873 example, this is set for ELF .debug and .stab sections.
874 strip tests this flag to see if a section can be
876 #define SEC_DEBUGGING 0x10000
878 /* The contents of this section are held in memory pointed to
879 by the contents field. This is checked by
880 bfd_get_section_contents, and the data is retrieved from
881 memory if appropriate. */
882 #define SEC_IN_MEMORY 0x20000
884 /* The contents of this section are to be excluded by the
885 linker for executable and shared objects unless those
886 objects are to be further relocated. */
887 #define SEC_EXCLUDE 0x40000
889 /* The contents of this section are to be sorted by the
890 based on the address specified in the associated symbol
892 #define SEC_SORT_ENTRIES 0x80000
894 /* A mark flag used by some of the linker backends. This
895 should not be set by application code. */
896 #define SEC_LINKER_MARK 0x100000
898 /* End of section flags. */
900 /* The virtual memory address of the section - where it will be
901 at run time. The symbols are relocated against this. The
902 user_set_vma flag is maintained by bfd; if it's not set, the
903 backend can assign addresses (for example, in <<a.out>>, where
904 the default address for <<.data>> is dependent on the specific
905 target and various flags). */
908 boolean user_set_vma;
910 /* The load address of the section - where it would be in a
911 rom image; really only used for writing section header
916 /* The size of the section in bytes, as it will be output.
917 contains a value even if the section has no contents (e.g., the
918 size of <<.bss>>). This will be filled in after relocation */
920 bfd_size_type _cooked_size;
922 /* The original size on disk of the section, in bytes. Normally this
923 value is the same as the size, but if some relaxing has
924 been done, then this value will be bigger. */
926 bfd_size_type _raw_size;
928 /* If this section is going to be output, then this value is the
929 offset into the output section of the first byte in the input
930 section. E.g., if this was going to start at the 100th byte in
931 the output section, this value would be 100. */
933 bfd_vma output_offset;
935 /* The output section through which to map on output. */
937 struct sec *output_section;
939 /* The alignment requirement of the section, as an exponent of 2 -
940 e.g., 3 aligns to 2^3 (or 8). */
942 unsigned int alignment_power;
944 /* If an input section, a pointer to a vector of relocation
945 records for the data in this section. */
947 struct reloc_cache_entry *relocation;
949 /* If an output section, a pointer to a vector of pointers to
950 relocation records for the data in this section. */
952 struct reloc_cache_entry **orelocation;
954 /* The number of relocation records in one of the above */
956 unsigned reloc_count;
958 /* Information below is back end specific - and not always used
961 /* File position of section data */
965 /* File position of relocation info */
967 file_ptr rel_filepos;
969 /* File position of line data */
971 file_ptr line_filepos;
973 /* Pointer to data for applications */
977 /* If the SEC_IN_MEMORY flag is set, this points to the actual
979 unsigned char *contents;
981 /* Attached line number information */
985 /* Number of line number records */
987 unsigned int lineno_count;
989 /* When a section is being output, this value changes as more
990 linenumbers are written out */
992 file_ptr moving_line_filepos;
994 /* What the section number is in the target world */
1000 /* If this is a constructor section then here is a list of the
1001 relocations created to relocate items within it. */
1003 struct relent_chain *constructor_chain;
1005 /* The BFD which owns the section. */
1010 /* A symbol which points at this section only */
1011 struct symbol_cache_entry *symbol;
1012 struct symbol_cache_entry **symbol_ptr_ptr;
1014 struct bfd_link_order *link_order_head;
1015 struct bfd_link_order *link_order_tail;
1018 /* These sections are global, and are managed by BFD. The application
1019 and target back end are not permitted to change the values in
1020 these sections. New code should use the section_ptr macros rather
1021 than referring directly to the const sections. The const sections
1022 may eventually vanish. */
1023 #define BFD_ABS_SECTION_NAME "*ABS*"
1024 #define BFD_UND_SECTION_NAME "*UND*"
1025 #define BFD_COM_SECTION_NAME "*COM*"
1026 #define BFD_IND_SECTION_NAME "*IND*"
1028 /* the absolute section */
1029 extern const asection bfd_abs_section;
1030 #define bfd_abs_section_ptr ((asection *) &bfd_abs_section)
1031 #define bfd_is_abs_section(sec) ((sec) == bfd_abs_section_ptr)
1032 /* Pointer to the undefined section */
1033 extern const asection bfd_und_section;
1034 #define bfd_und_section_ptr ((asection *) &bfd_und_section)
1035 #define bfd_is_und_section(sec) ((sec) == bfd_und_section_ptr)
1036 /* Pointer to the common section */
1037 extern const asection bfd_com_section;
1038 #define bfd_com_section_ptr ((asection *) &bfd_com_section)
1039 /* Pointer to the indirect section */
1040 extern const asection bfd_ind_section;
1041 #define bfd_ind_section_ptr ((asection *) &bfd_ind_section)
1042 #define bfd_is_ind_section(sec) ((sec) == bfd_ind_section_ptr)
1044 extern const struct symbol_cache_entry * const bfd_abs_symbol;
1045 extern const struct symbol_cache_entry * const bfd_com_symbol;
1046 extern const struct symbol_cache_entry * const bfd_und_symbol;
1047 extern const struct symbol_cache_entry * const bfd_ind_symbol;
1048 #define bfd_get_section_size_before_reloc(section) \
1049 (section->reloc_done ? (abort(),1): (section)->_raw_size)
1050 #define bfd_get_section_size_after_reloc(section) \
1051 ((section->reloc_done) ? (section)->_cooked_size: (abort(),1))
1053 bfd_get_section_by_name PARAMS ((bfd *abfd, CONST char *name));
1056 bfd_make_section_old_way PARAMS ((bfd *abfd, CONST char *name));
1059 bfd_make_section_anyway PARAMS ((bfd *abfd, CONST char *name));
1062 bfd_make_section PARAMS ((bfd *, CONST char *name));
1065 bfd_set_section_flags PARAMS ((bfd *abfd, asection *sec, flagword flags));
1068 bfd_map_over_sections PARAMS ((bfd *abfd,
1069 void (*func)(bfd *abfd,
1075 bfd_set_section_size PARAMS ((bfd *abfd, asection *sec, bfd_size_type val));
1078 bfd_set_section_contents
1083 bfd_size_type count));
1086 bfd_get_section_contents
1087 PARAMS ((bfd *abfd, asection *section, PTR location,
1088 file_ptr offset, bfd_size_type count));
1091 bfd_copy_private_section_data PARAMS ((bfd *ibfd, asection *isec, bfd *obfd, asection *osec));
1093 #define bfd_copy_private_section_data(ibfd, isection, obfd, osection) \
1094 BFD_SEND (ibfd, _bfd_copy_private_section_data, \
1095 (ibfd, isection, obfd, osection))
1096 enum bfd_architecture
1098 bfd_arch_unknown, /* File arch not known */
1099 bfd_arch_obscure, /* Arch known, not one of these */
1100 bfd_arch_m68k, /* Motorola 68xxx */
1101 bfd_arch_vax, /* DEC Vax */
1102 bfd_arch_i960, /* Intel 960 */
1103 /* The order of the following is important.
1104 lower number indicates a machine type that
1105 only accepts a subset of the instructions
1106 available to machines with higher numbers.
1107 The exception is the "ca", which is
1108 incompatible with all other machines except
1111 #define bfd_mach_i960_core 1
1112 #define bfd_mach_i960_ka_sa 2
1113 #define bfd_mach_i960_kb_sb 3
1114 #define bfd_mach_i960_mc 4
1115 #define bfd_mach_i960_xa 5
1116 #define bfd_mach_i960_ca 6
1117 #define bfd_mach_i960_jx 7
1118 #define bfd_mach_i960_hx 8
1120 bfd_arch_a29k, /* AMD 29000 */
1121 bfd_arch_sparc, /* SPARC */
1122 #define bfd_mach_sparc 1
1123 /* The difference between v8plus and v9 is that v9 is a true 64 bit env. */
1124 #define bfd_mach_sparc_v8plus 2
1125 #define bfd_mach_sparc_v8plusa 3 /* with ultrasparc add'ns */
1126 #define bfd_mach_sparc_v9 4
1127 #define bfd_mach_sparc_v9a 5 /* with ultrasparc add'ns */
1128 /* Nonzero if MACH has the v9 instruction set. */
1129 #define bfd_mach_sparc_v9_p(mach) ((mach) != bfd_mach_sparc)
1130 bfd_arch_mips, /* MIPS Rxxxx */
1131 bfd_arch_i386, /* Intel 386 */
1132 bfd_arch_we32k, /* AT&T WE32xxx */
1133 bfd_arch_tahoe, /* CCI/Harris Tahoe */
1134 bfd_arch_i860, /* Intel 860 */
1135 bfd_arch_romp, /* IBM ROMP PC/RT */
1136 bfd_arch_alliant, /* Alliant */
1137 bfd_arch_convex, /* Convex */
1138 bfd_arch_m88k, /* Motorola 88xxx */
1139 bfd_arch_pyramid, /* Pyramid Technology */
1140 bfd_arch_h8300, /* Hitachi H8/300 */
1141 #define bfd_mach_h8300 1
1142 #define bfd_mach_h8300h 2
1143 bfd_arch_powerpc, /* PowerPC */
1144 bfd_arch_rs6000, /* IBM RS/6000 */
1145 bfd_arch_hppa, /* HP PA RISC */
1146 bfd_arch_z8k, /* Zilog Z8000 */
1147 #define bfd_mach_z8001 1
1148 #define bfd_mach_z8002 2
1149 bfd_arch_h8500, /* Hitachi H8/500 */
1150 bfd_arch_sh, /* Hitachi SH */
1151 bfd_arch_alpha, /* Dec Alpha */
1152 bfd_arch_arm, /* Advanced Risc Machines ARM */
1153 bfd_arch_ns32k, /* National Semiconductors ns32000 */
1154 bfd_arch_w65, /* WDC 65816 */
1155 /* start-sanitize-rce */
1156 bfd_arch_rce, /* Motorola RCE */
1157 /* end-sanitize-rce */
1158 /* start-sanitize-arc */
1159 bfd_arch_arc, /* Argonaut RISC Core */
1160 #define bfd_mach_arc_base 0
1161 #define bfd_mach_arc_host 1
1162 #define bfd_mach_arc_graphics 2
1163 #define bfd_mach_arc_audio 3
1164 /* end-sanitize-arc */
1168 typedef struct bfd_arch_info
1171 int bits_per_address;
1173 enum bfd_architecture arch;
1175 const char *arch_name;
1176 const char *printable_name;
1177 unsigned int section_align_power;
1178 /* true if this is the default machine for the architecture */
1179 boolean the_default;
1180 const struct bfd_arch_info * (*compatible)
1181 PARAMS ((const struct bfd_arch_info *a,
1182 const struct bfd_arch_info *b));
1184 boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
1186 const struct bfd_arch_info *next;
1187 } bfd_arch_info_type;
1189 bfd_printable_name PARAMS ((bfd *abfd));
1191 const bfd_arch_info_type *
1192 bfd_scan_arch PARAMS ((const char *string));
1194 const bfd_arch_info_type *
1195 bfd_arch_get_compatible PARAMS ((
1200 bfd_set_arch_info PARAMS ((bfd *abfd, const bfd_arch_info_type *arg));
1202 enum bfd_architecture
1203 bfd_get_arch PARAMS ((bfd *abfd));
1206 bfd_get_mach PARAMS ((bfd *abfd));
1209 bfd_arch_bits_per_byte PARAMS ((bfd *abfd));
1212 bfd_arch_bits_per_address PARAMS ((bfd *abfd));
1214 const bfd_arch_info_type *
1215 bfd_get_arch_info PARAMS ((bfd *abfd));
1217 const bfd_arch_info_type *
1219 PARAMS ((enum bfd_architecture
1221 unsigned long machine));
1224 bfd_printable_arch_mach
1225 PARAMS ((enum bfd_architecture arch, unsigned long machine));
1227 typedef enum bfd_reloc_status
1229 /* No errors detected */
1232 /* The relocation was performed, but there was an overflow. */
1235 /* The address to relocate was not within the section supplied. */
1236 bfd_reloc_outofrange,
1238 /* Used by special functions */
1241 /* Unsupported relocation size requested. */
1242 bfd_reloc_notsupported,
1247 /* The symbol to relocate against was undefined. */
1248 bfd_reloc_undefined,
1250 /* The relocation was performed, but may not be ok - presently
1251 generated only when linking i960 coff files with i960 b.out
1252 symbols. If this type is returned, the error_message argument
1253 to bfd_perform_relocation will be set. */
1256 bfd_reloc_status_type;
1259 typedef struct reloc_cache_entry
1261 /* A pointer into the canonical table of pointers */
1262 struct symbol_cache_entry **sym_ptr_ptr;
1264 /* offset in section */
1265 bfd_size_type address;
1267 /* addend for relocation value */
1270 /* Pointer to how to perform the required relocation */
1271 reloc_howto_type *howto;
1274 enum complain_overflow
1276 /* Do not complain on overflow. */
1277 complain_overflow_dont,
1279 /* Complain if the bitfield overflows, whether it is considered
1280 as signed or unsigned. */
1281 complain_overflow_bitfield,
1283 /* Complain if the value overflows when considered as signed
1285 complain_overflow_signed,
1287 /* Complain if the value overflows when considered as an
1289 complain_overflow_unsigned
1292 struct reloc_howto_struct
1294 /* The type field has mainly a documetary use - the back end can
1295 do what it wants with it, though normally the back end's
1296 external idea of what a reloc number is stored
1297 in this field. For example, a PC relative word relocation
1298 in a coff environment has the type 023 - because that's
1299 what the outside world calls a R_PCRWORD reloc. */
1302 /* The value the final relocation is shifted right by. This drops
1303 unwanted data from the relocation. */
1304 unsigned int rightshift;
1306 /* The size of the item to be relocated. This is *not* a
1307 power-of-two measure. To get the number of bytes operated
1308 on by a type of relocation, use bfd_get_reloc_size. */
1311 /* The number of bits in the item to be relocated. This is used
1312 when doing overflow checking. */
1313 unsigned int bitsize;
1315 /* Notes that the relocation is relative to the location in the
1316 data section of the addend. The relocation function will
1317 subtract from the relocation value the address of the location
1319 boolean pc_relative;
1321 /* The bit position of the reloc value in the destination.
1322 The relocated value is left shifted by this amount. */
1323 unsigned int bitpos;
1325 /* What type of overflow error should be checked for when
1327 enum complain_overflow complain_on_overflow;
1329 /* If this field is non null, then the supplied function is
1330 called rather than the normal function. This allows really
1331 strange relocation methods to be accomodated (e.g., i960 callj
1333 bfd_reloc_status_type (*special_function)
1335 arelent *reloc_entry,
1336 struct symbol_cache_entry *symbol,
1338 asection *input_section,
1340 char **error_message));
1342 /* The textual name of the relocation type. */
1345 /* When performing a partial link, some formats must modify the
1346 relocations rather than the data - this flag signals this.*/
1347 boolean partial_inplace;
1349 /* The src_mask selects which parts of the read in data
1350 are to be used in the relocation sum. E.g., if this was an 8 bit
1351 bit of data which we read and relocated, this would be
1352 0x000000ff. When we have relocs which have an addend, such as
1353 sun4 extended relocs, the value in the offset part of a
1354 relocating field is garbage so we never use it. In this case
1355 the mask would be 0x00000000. */
1358 /* The dst_mask selects which parts of the instruction are replaced
1359 into the instruction. In most cases src_mask == dst_mask,
1360 except in the above special case, where dst_mask would be
1361 0x000000ff, and src_mask would be 0x00000000. */
1364 /* When some formats create PC relative instructions, they leave
1365 the value of the pc of the place being relocated in the offset
1366 slot of the instruction, so that a PC relative relocation can
1367 be made just by adding in an ordinary offset (e.g., sun3 a.out).
1368 Some formats leave the displacement part of an instruction
1369 empty (e.g., m88k bcs); this flag signals the fact.*/
1370 boolean pcrel_offset;
1373 #define HOWTO(C, R,S,B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
1374 {(unsigned)C,R,S,B, P, BI, O,SF,NAME,INPLACE,MASKSRC,MASKDST,PC}
1375 #define NEWHOWTO( FUNCTION, NAME,SIZE,REL,IN) HOWTO(0,0,SIZE,0,REL,0,complain_overflow_dont,FUNCTION, NAME,false,0,0,IN)
1377 #define HOWTO_PREPARE(relocation, symbol) \
1379 if (symbol != (asymbol *)NULL) { \
1380 if (bfd_is_com_section (symbol->section)) { \
1384 relocation = symbol->value; \
1389 bfd_get_reloc_size PARAMS ((reloc_howto_type *));
1391 typedef struct relent_chain {
1393 struct relent_chain *next;
1395 bfd_reloc_status_type
1397 bfd_perform_relocation
1399 arelent *reloc_entry,
1401 asection *input_section,
1403 char **error_message));
1405 bfd_reloc_status_type
1407 bfd_install_relocation
1409 arelent *reloc_entry,
1410 PTR data, bfd_vma data_start,
1411 asection *input_section,
1412 char **error_message));
1414 enum bfd_reloc_code_real {
1415 _dummy_first_bfd_reloc_code_real,
1418 /* Basic absolute relocations of N bits. */
1426 /* PC-relative relocations. Sometimes these are relative to the address
1427 of the relocation itself; sometimes they are relative to the start of
1428 the section containing the relocation. It depends on the specific target.
1430 The 24-bit relocation is used in some Intel 960 configurations. */
1439 BFD_RELOC_32_GOT_PCREL,
1440 BFD_RELOC_16_GOT_PCREL,
1441 BFD_RELOC_8_GOT_PCREL,
1442 BFD_RELOC_32_GOTOFF,
1443 BFD_RELOC_16_GOTOFF,
1444 BFD_RELOC_LO16_GOTOFF,
1445 BFD_RELOC_HI16_GOTOFF,
1446 BFD_RELOC_HI16_S_GOTOFF,
1448 BFD_RELOC_32_PLT_PCREL,
1449 BFD_RELOC_24_PLT_PCREL,
1450 BFD_RELOC_16_PLT_PCREL,
1451 BFD_RELOC_8_PLT_PCREL,
1452 BFD_RELOC_32_PLTOFF,
1453 BFD_RELOC_16_PLTOFF,
1454 BFD_RELOC_LO16_PLTOFF,
1455 BFD_RELOC_HI16_PLTOFF,
1456 BFD_RELOC_HI16_S_PLTOFF,
1459 /* Relocations used by 68K ELF. */
1460 BFD_RELOC_68K_GLOB_DAT,
1461 BFD_RELOC_68K_JMP_SLOT,
1462 BFD_RELOC_68K_RELATIVE,
1464 /* Linkage-table relative. */
1465 BFD_RELOC_32_BASEREL,
1466 BFD_RELOC_16_BASEREL,
1467 BFD_RELOC_LO16_BASEREL,
1468 BFD_RELOC_HI16_BASEREL,
1469 BFD_RELOC_HI16_S_BASEREL,
1470 BFD_RELOC_8_BASEREL,
1473 /* Absolute 8-bit relocation, but used to form an address like 0xFFnn. */
1476 /* These PC-relative relocations are stored as word displacements --
1477 i.e., byte displacements shifted right two bits. The 30-bit word
1478 displacement (<<32_PCREL_S2>> -- 32 bits, shifted 2) is used on the
1479 SPARC. (SPARC tools generally refer to this as <<WDISP30>>.) The
1480 signed 16-bit displacement is used on the MIPS, and the 23-bit
1481 displacement is used on the Alpha. */
1482 BFD_RELOC_32_PCREL_S2,
1483 BFD_RELOC_16_PCREL_S2,
1484 BFD_RELOC_23_PCREL_S2,
1486 /* High 22 bits and low 10 bits of 32-bit value, placed into lower bits of
1487 the target word. These are used on the SPARC. */
1491 /* For systems that allocate a Global Pointer register, these are
1492 displacements off that register. These relocation types are
1493 handled specially, because the value the register will have is
1494 decided relatively late. */
1498 /* Reloc types used for i960/b.out. */
1499 BFD_RELOC_I960_CALLJ,
1501 /* SPARC ELF relocations. There is probably some overlap with other
1502 relocation types already defined. */
1504 BFD_RELOC_SPARC_WDISP22,
1507 BFD_RELOC_SPARC_GOT10,
1508 BFD_RELOC_SPARC_GOT13,
1509 BFD_RELOC_SPARC_GOT22,
1510 BFD_RELOC_SPARC_PC10,
1511 BFD_RELOC_SPARC_PC22,
1512 BFD_RELOC_SPARC_WPLT30,
1513 BFD_RELOC_SPARC_COPY,
1514 BFD_RELOC_SPARC_GLOB_DAT,
1515 BFD_RELOC_SPARC_JMP_SLOT,
1516 BFD_RELOC_SPARC_RELATIVE,
1517 BFD_RELOC_SPARC_UA32,
1519 /* I think these are specific to SPARC a.out (e.g., Sun 4). */
1520 BFD_RELOC_SPARC_BASE13,
1521 BFD_RELOC_SPARC_BASE22,
1523 /* Some relocations we're using for SPARC V9 -- subject to change. */
1524 #define BFD_RELOC_SPARC_64 BFD_RELOC_64
1527 BFD_RELOC_SPARC_OLO10,
1528 BFD_RELOC_SPARC_HH22,
1529 BFD_RELOC_SPARC_HM10,
1530 BFD_RELOC_SPARC_LM22,
1531 BFD_RELOC_SPARC_PC_HH22,
1532 BFD_RELOC_SPARC_PC_HM10,
1533 BFD_RELOC_SPARC_PC_LM22,
1534 BFD_RELOC_SPARC_WDISP16,
1535 BFD_RELOC_SPARC_WDISP19,
1536 BFD_RELOC_SPARC_GLOB_JMP,
1541 /* Alpha ECOFF relocations. Some of these treat the symbol or "addend"
1542 in some special way.
1543 For GPDISP_HI16 ("gpdisp") relocations, the symbol is ignored when
1544 writing; when reading, it will be the absolute section symbol. The
1545 addend is the displacement in bytes of the "lda" instruction from
1546 the "ldah" instruction (which is at the address of this reloc). */
1547 BFD_RELOC_ALPHA_GPDISP_HI16,
1549 /* For GPDISP_LO16 ("ignore") relocations, the symbol is handled as
1550 with GPDISP_HI16 relocs. The addend is ignored when writing the
1551 relocations out, and is filled in with the file's GP value on
1552 reading, for convenience. */
1553 BFD_RELOC_ALPHA_GPDISP_LO16,
1555 /* The Alpha LITERAL/LITUSE relocs are produced by a symbol reference;
1556 the assembler turns it into a LDQ instruction to load the address of
1557 the symbol, and then fills in a register in the real instruction.
1559 The LITERAL reloc, at the LDQ instruction, refers to the .lita
1560 section symbol. The addend is ignored when writing, but is filled
1561 in with the file's GP value on reading, for convenience, as with the
1564 The LITUSE reloc, on the instruction using the loaded address, gives
1565 information to the linker that it might be able to use to optimize
1566 away some literal section references. The symbol is ignored (read
1567 as the absolute section symbol), and the "addend" indicates the type
1568 of instruction using the register:
1569 1 - "memory" fmt insn
1570 2 - byte-manipulation (byte offset reg)
1571 3 - jsr (target of branch)
1573 The GNU linker currently doesn't do any of this optimizing. */
1574 BFD_RELOC_ALPHA_LITERAL,
1575 BFD_RELOC_ALPHA_LITUSE,
1577 /* The HINT relocation indicates a value that should be filled into the
1578 "hint" field of a jmp/jsr/ret instruction, for possible branch-
1579 prediction logic which may be provided on some processors. */
1580 BFD_RELOC_ALPHA_HINT,
1582 /* Bits 27..2 of the relocation address shifted right 2 bits;
1583 simple reloc otherwise. */
1586 /* High 16 bits of 32-bit value; simple reloc. */
1589 /* High 16 bits of 32-bit value but the low 16 bits will be sign
1590 extended and added to form the final result. If the low 16
1591 bits form a negative number, we need to add one to the high value
1592 to compensate for the borrow when the low bits are added. */
1598 /* Like BFD_RELOC_HI16_S, but PC relative. */
1599 BFD_RELOC_PCREL_HI16_S,
1601 /* Like BFD_RELOC_LO16, but PC relative. */
1602 BFD_RELOC_PCREL_LO16,
1604 /* Relocation relative to the global pointer. */
1605 #define BFD_RELOC_MIPS_GPREL BFD_RELOC_GPREL16
1607 /* Relocation against a MIPS literal section. */
1608 BFD_RELOC_MIPS_LITERAL,
1610 /* MIPS ELF relocations. */
1611 BFD_RELOC_MIPS_GOT16,
1612 BFD_RELOC_MIPS_CALL16,
1613 #define BFD_RELOC_MIPS_GPREL32 BFD_RELOC_GPREL32
1614 BFD_RELOC_MIPS_GOT_HI16,
1615 BFD_RELOC_MIPS_GOT_LO16,
1616 BFD_RELOC_MIPS_CALL_HI16,
1617 BFD_RELOC_MIPS_CALL_LO16,
1619 /* i386/elf relocations */
1620 BFD_RELOC_386_GOT32,
1621 BFD_RELOC_386_PLT32,
1623 BFD_RELOC_386_GLOB_DAT,
1624 BFD_RELOC_386_JUMP_SLOT,
1625 BFD_RELOC_386_RELATIVE,
1626 BFD_RELOC_386_GOTOFF,
1627 BFD_RELOC_386_GOTPC,
1629 /* ns32k relocations */
1630 BFD_RELOC_NS32K_IMM_8,
1631 BFD_RELOC_NS32K_IMM_16,
1632 BFD_RELOC_NS32K_IMM_32,
1633 BFD_RELOC_NS32K_IMM_8_PCREL,
1634 BFD_RELOC_NS32K_IMM_16_PCREL,
1635 BFD_RELOC_NS32K_IMM_32_PCREL,
1636 BFD_RELOC_NS32K_DISP_8,
1637 BFD_RELOC_NS32K_DISP_16,
1638 BFD_RELOC_NS32K_DISP_32,
1639 BFD_RELOC_NS32K_DISP_8_PCREL,
1640 BFD_RELOC_NS32K_DISP_16_PCREL,
1641 BFD_RELOC_NS32K_DISP_32_PCREL,
1643 /* Power(rs6000) and PowerPC relocations. */
1646 BFD_RELOC_PPC_TOC16,
1648 BFD_RELOC_PPC_B16_BRTAKEN,
1649 BFD_RELOC_PPC_B16_BRNTAKEN,
1651 BFD_RELOC_PPC_BA16_BRTAKEN,
1652 BFD_RELOC_PPC_BA16_BRNTAKEN,
1654 BFD_RELOC_PPC_GLOB_DAT,
1655 BFD_RELOC_PPC_JMP_SLOT,
1656 BFD_RELOC_PPC_RELATIVE,
1657 BFD_RELOC_PPC_LOCAL24PC,
1658 BFD_RELOC_PPC_EMB_NADDR32,
1659 BFD_RELOC_PPC_EMB_NADDR16,
1660 BFD_RELOC_PPC_EMB_NADDR16_LO,
1661 BFD_RELOC_PPC_EMB_NADDR16_HI,
1662 BFD_RELOC_PPC_EMB_NADDR16_HA,
1663 BFD_RELOC_PPC_EMB_SDAI16,
1664 BFD_RELOC_PPC_EMB_SDA2I16,
1665 BFD_RELOC_PPC_EMB_SDA2REL,
1666 BFD_RELOC_PPC_EMB_SDA21,
1667 BFD_RELOC_PPC_EMB_MRKREF,
1668 BFD_RELOC_PPC_EMB_RELSEC16,
1669 BFD_RELOC_PPC_EMB_RELST_LO,
1670 BFD_RELOC_PPC_EMB_RELST_HI,
1671 BFD_RELOC_PPC_EMB_RELST_HA,
1672 BFD_RELOC_PPC_EMB_BIT_FLD,
1673 BFD_RELOC_PPC_EMB_RELSDA,
1675 /* The type of reloc used to build a contructor table - at the moment
1676 probably a 32 bit wide absolute relocation, but the target can choose.
1677 It generally does map to one of the other relocation types. */
1680 /* ARM 26 bit pc-relative branch. The lowest two bits must be zero and are
1681 not stored in the instruction. */
1682 BFD_RELOC_ARM_PCREL_BRANCH,
1684 /* These relocs are only used within the ARM assembler. They are not
1685 (at present) written to any object files. */
1686 BFD_RELOC_ARM_IMMEDIATE,
1687 BFD_RELOC_ARM_OFFSET_IMM,
1688 BFD_RELOC_ARM_SHIFT_IMM,
1690 BFD_RELOC_ARM_MULTI,
1691 BFD_RELOC_ARM_CP_OFF_IMM,
1692 BFD_RELOC_ARM_ADR_IMM,
1693 BFD_RELOC_ARM_LDR_IMM,
1694 BFD_RELOC_ARM_LITERAL,
1695 BFD_RELOC_ARM_IN_POOL,
1696 /* start-sanitize-arc */
1698 /* Argonaut RISC Core (ARC) relocs.
1699 ARC 22 bit pc-relative branch. The lowest two bits must be zero and are
1700 not stored in the instruction. The high 20 bits are installed in bits 26
1701 through 7 of the instruction. */
1702 BFD_RELOC_ARC_B22_PCREL,
1704 /* ARC 26 bit absolute branch. The lowest two bits must be zero and are not
1705 stored in the instruction. The high 24 bits are installed in bits 23
1708 /* end-sanitize-arc */
1710 typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
1713 bfd_reloc_type_lookup PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
1716 bfd_get_reloc_code_name PARAMS ((bfd_reloc_code_real_type code));
1719 typedef struct symbol_cache_entry
1721 /* A pointer to the BFD which owns the symbol. This information
1722 is necessary so that a back end can work out what additional
1723 information (invisible to the application writer) is carried
1726 This field is *almost* redundant, since you can use section->owner
1727 instead, except that some symbols point to the global sections
1728 bfd_{abs,com,und}_section. This could be fixed by making
1729 these globals be per-bfd (or per-target-flavor). FIXME. */
1731 struct _bfd *the_bfd; /* Use bfd_asymbol_bfd(sym) to access this field. */
1733 /* The text of the symbol. The name is left alone, and not copied; the
1734 application may not alter it. */
1737 /* The value of the symbol. This really should be a union of a
1738 numeric value with a pointer, since some flags indicate that
1739 a pointer to another symbol is stored here. */
1742 /* Attributes of a symbol: */
1744 #define BSF_NO_FLAGS 0x00
1746 /* The symbol has local scope; <<static>> in <<C>>. The value
1747 is the offset into the section of the data. */
1748 #define BSF_LOCAL 0x01
1750 /* The symbol has global scope; initialized data in <<C>>. The
1751 value is the offset into the section of the data. */
1752 #define BSF_GLOBAL 0x02
1754 /* The symbol has global scope and is exported. The value is
1755 the offset into the section of the data. */
1756 #define BSF_EXPORT BSF_GLOBAL /* no real difference */
1758 /* A normal C symbol would be one of:
1759 <<BSF_LOCAL>>, <<BSF_FORT_COMM>>, <<BSF_UNDEFINED>> or
1762 /* The symbol is a debugging record. The value has an arbitary
1764 #define BSF_DEBUGGING 0x08
1766 /* The symbol denotes a function entry point. Used in ELF,
1767 perhaps others someday. */
1768 #define BSF_FUNCTION 0x10
1770 /* Used by the linker. */
1771 #define BSF_KEEP 0x20
1772 #define BSF_KEEP_G 0x40
1774 /* A weak global symbol, overridable without warnings by
1775 a regular global symbol of the same name. */
1776 #define BSF_WEAK 0x80
1778 /* This symbol was created to point to a section, e.g. ELF's
1779 STT_SECTION symbols. */
1780 #define BSF_SECTION_SYM 0x100
1782 /* The symbol used to be a common symbol, but now it is
1784 #define BSF_OLD_COMMON 0x200
1786 /* The default value for common data. */
1787 #define BFD_FORT_COMM_DEFAULT_VALUE 0
1789 /* In some files the type of a symbol sometimes alters its
1790 location in an output file - ie in coff a <<ISFCN>> symbol
1791 which is also <<C_EXT>> symbol appears where it was
1792 declared and not at the end of a section. This bit is set
1793 by the target BFD part to convey this information. */
1795 #define BSF_NOT_AT_END 0x400
1797 /* Signal that the symbol is the label of constructor section. */
1798 #define BSF_CONSTRUCTOR 0x800
1800 /* Signal that the symbol is a warning symbol. The name is a
1801 warning. The name of the next symbol is the one to warn about;
1802 if a reference is made to a symbol with the same name as the next
1803 symbol, a warning is issued by the linker. */
1804 #define BSF_WARNING 0x1000
1806 /* Signal that the symbol is indirect. This symbol is an indirect
1807 pointer to the symbol with the same name as the next symbol. */
1808 #define BSF_INDIRECT 0x2000
1810 /* BSF_FILE marks symbols that contain a file name. This is used
1811 for ELF STT_FILE symbols. */
1812 #define BSF_FILE 0x4000
1814 /* Symbol is from dynamic linking information. */
1815 #define BSF_DYNAMIC 0x8000
1817 /* The symbol denotes a data object. Used in ELF, and perhaps
1819 #define BSF_OBJECT 0x10000
1823 /* A pointer to the section to which this symbol is
1824 relative. This will always be non NULL, there are special
1825 sections for undefined and absolute symbols. */
1826 struct sec *section;
1828 /* Back end special data. */
1836 #define bfd_get_symtab_upper_bound(abfd) \
1837 BFD_SEND (abfd, _bfd_get_symtab_upper_bound, (abfd))
1839 bfd_is_local_label PARAMS ((bfd *abfd, asymbol *sym));
1841 #define bfd_is_local_label(abfd, sym) \
1842 BFD_SEND (abfd, _bfd_is_local_label,(abfd, sym))
1843 #define bfd_canonicalize_symtab(abfd, location) \
1844 BFD_SEND (abfd, _bfd_canonicalize_symtab,\
1847 bfd_set_symtab PARAMS ((bfd *abfd, asymbol **location, unsigned int count));
1850 bfd_print_symbol_vandf PARAMS ((PTR file, asymbol *symbol));
1852 #define bfd_make_empty_symbol(abfd) \
1853 BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd))
1854 #define bfd_make_debug_symbol(abfd,ptr,size) \
1855 BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size))
1857 bfd_decode_symclass PARAMS ((asymbol *symbol));
1860 bfd_symbol_info PARAMS ((asymbol *symbol, symbol_info *ret));
1863 bfd_copy_private_symbol_data PARAMS ((bfd *ibfd, asymbol *isym, bfd *obfd, asymbol *osym));
1865 #define bfd_copy_private_symbol_data(ibfd, isymbol, obfd, osymbol) \
1866 BFD_SEND (ibfd, _bfd_copy_private_symbol_data, \
1867 (ibfd, isymbol, obfd, osymbol))
1870 /* The filename the application opened the BFD with. */
1871 CONST char *filename;
1873 /* A pointer to the target jump table. */
1874 const struct bfd_target *xvec;
1876 /* To avoid dragging too many header files into every file that
1877 includes `<<bfd.h>>', IOSTREAM has been declared as a "char
1878 *", and MTIME as a "long". Their correct types, to which they
1879 are cast when used, are "FILE *" and "time_t". The iostream
1880 is the result of an fopen on the filename. However, if the
1881 BFD_IN_MEMORY flag is set, then iostream is actually a pointer
1882 to a bfd_in_memory struct. */
1885 /* Is the file descriptor being cached? That is, can it be closed as
1886 needed, and re-opened when accessed later? */
1890 /* Marks whether there was a default target specified when the
1891 BFD was opened. This is used to select which matching algorithm
1892 to use to choose the back end. */
1894 boolean target_defaulted;
1896 /* The caching routines use these to maintain a
1897 least-recently-used list of BFDs */
1899 struct _bfd *lru_prev, *lru_next;
1901 /* When a file is closed by the caching routines, BFD retains
1902 state information on the file here: */
1906 /* and here: (``once'' means at least once) */
1908 boolean opened_once;
1910 /* Set if we have a locally maintained mtime value, rather than
1911 getting it from the file each time: */
1915 /* File modified time, if mtime_set is true: */
1919 /* Reserved for an unimplemented file locking extension.*/
1923 /* The format which belongs to the BFD. (object, core, etc.) */
1927 /* The direction the BFD was opened with*/
1929 enum bfd_direction {no_direction = 0,
1931 write_direction = 2,
1932 both_direction = 3} direction;
1934 /* Format_specific flags*/
1938 /* Currently my_archive is tested before adding origin to
1939 anything. I believe that this can become always an add of
1940 origin, with origin set to 0 for non archive files. */
1944 /* Remember when output has begun, to stop strange things
1946 boolean output_has_begun;
1948 /* Pointer to linked list of sections*/
1949 struct sec *sections;
1951 /* The number of sections */
1952 unsigned int section_count;
1954 /* Stuff only useful for object files:
1955 The start address. */
1956 bfd_vma start_address;
1958 /* Used for input and output*/
1959 unsigned int symcount;
1961 /* Symbol table for output BFD (with symcount entries) */
1962 struct symbol_cache_entry **outsymbols;
1964 /* Pointer to structure which contains architecture information*/
1965 const struct bfd_arch_info *arch_info;
1967 /* Stuff only useful for archives:*/
1969 struct _bfd *my_archive; /* The containing archive BFD. */
1970 struct _bfd *next; /* The next BFD in the archive. */
1971 struct _bfd *archive_head; /* The first BFD in the archive. */
1974 /* A chain of BFD structures involved in a link. */
1975 struct _bfd *link_next;
1977 /* A field used by _bfd_generic_link_add_archive_symbols. This will
1978 be used only for archive elements. */
1981 /* Used by the back end to hold private data. */
1985 struct aout_data_struct *aout_data;
1986 struct artdata *aout_ar_data;
1987 struct _oasys_data *oasys_obj_data;
1988 struct _oasys_ar_data *oasys_ar_data;
1989 struct coff_tdata *coff_obj_data;
1990 struct pe_tdata *pe_obj_data;
1991 struct xcoff_tdata *xcoff_obj_data;
1992 struct ecoff_tdata *ecoff_obj_data;
1993 struct ieee_data_struct *ieee_data;
1994 struct ieee_ar_data_struct *ieee_ar_data;
1995 struct srec_data_struct *srec_data;
1996 struct ihex_data_struct *ihex_data;
1997 struct tekhex_data_struct *tekhex_data;
1998 struct elf_obj_tdata *elf_obj_data;
1999 struct nlm_obj_tdata *nlm_obj_data;
2000 struct bout_data_struct *bout_data;
2001 struct sun_core_struct *sun_core_data;
2002 struct trad_core_struct *trad_core_data;
2003 struct som_data_struct *som_data;
2004 struct hpux_core_struct *hpux_core_data;
2005 struct hppabsd_core_struct *hppabsd_core_data;
2006 struct sgi_core_struct *sgi_core_data;
2007 struct lynx_core_struct *lynx_core_data;
2008 struct osf_core_struct *osf_core_data;
2009 struct cisco_core_struct *cisco_core_data;
2010 struct versados_data_struct *versados_data;
2011 struct netbsd_core_struct *netbsd_core_data;
2015 /* Used by the application to hold private data*/
2018 /* Where all the allocated stuff under this BFD goes */
2019 struct obstack memory;
2022 typedef enum bfd_error
2024 bfd_error_no_error = 0,
2025 bfd_error_system_call,
2026 bfd_error_invalid_target,
2027 bfd_error_wrong_format,
2028 bfd_error_invalid_operation,
2029 bfd_error_no_memory,
2030 bfd_error_no_symbols,
2032 bfd_error_no_more_archived_files,
2033 bfd_error_malformed_archive,
2034 bfd_error_file_not_recognized,
2035 bfd_error_file_ambiguously_recognized,
2036 bfd_error_no_contents,
2037 bfd_error_nonrepresentable_section,
2038 bfd_error_no_debug_section,
2039 bfd_error_bad_value,
2040 bfd_error_file_truncated,
2041 bfd_error_file_too_big,
2042 bfd_error_invalid_error_code
2046 bfd_get_error PARAMS ((void));
2049 bfd_set_error PARAMS ((bfd_error_type error_tag));
2052 bfd_errmsg PARAMS ((bfd_error_type error_tag));
2055 bfd_perror PARAMS ((CONST char *message));
2057 typedef void (*bfd_error_handler_type) PARAMS ((const char *, ...));
2059 bfd_error_handler_type
2060 bfd_set_error_handler PARAMS ((bfd_error_handler_type));
2063 bfd_set_error_program_name PARAMS ((const char *));
2066 bfd_get_reloc_upper_bound PARAMS ((bfd *abfd, asection *sect));
2069 bfd_canonicalize_reloc
2077 PARAMS ((bfd *abfd, asection *sec, arelent **rel, unsigned int count)
2082 bfd_set_file_flags PARAMS ((bfd *abfd, flagword flags));
2085 bfd_set_start_address PARAMS ((bfd *abfd, bfd_vma vma));
2088 bfd_get_mtime PARAMS ((bfd *abfd));
2091 bfd_get_size PARAMS ((bfd *abfd));
2094 bfd_get_gp_size PARAMS ((bfd *abfd));
2097 bfd_set_gp_size PARAMS ((bfd *abfd, int i));
2100 bfd_scan_vma PARAMS ((CONST char *string, CONST char **end, int base));
2103 bfd_copy_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd));
2105 #define bfd_copy_private_bfd_data(ibfd, obfd) \
2106 BFD_SEND (ibfd, _bfd_copy_private_bfd_data, \
2109 bfd_merge_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd));
2111 #define bfd_merge_private_bfd_data(ibfd, obfd) \
2112 BFD_SEND (ibfd, _bfd_merge_private_bfd_data, \
2115 bfd_set_private_flags PARAMS ((bfd *abfd, flagword flags));
2117 #define bfd_set_private_flags(abfd, flags) \
2118 BFD_SEND (abfd, _bfd_set_private_flags, \
2120 #define bfd_sizeof_headers(abfd, reloc) \
2121 BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc))
2123 #define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
2124 BFD_SEND (abfd, _bfd_find_nearest_line, (abfd, sec, syms, off, file, func, line))
2126 /* Do these three do anything useful at all, for any back end? */
2127 #define bfd_debug_info_start(abfd) \
2128 BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
2130 #define bfd_debug_info_end(abfd) \
2131 BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
2133 #define bfd_debug_info_accumulate(abfd, section) \
2134 BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
2137 #define bfd_stat_arch_elt(abfd, stat) \
2138 BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
2140 #define bfd_update_armap_timestamp(abfd) \
2141 BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))
2143 #define bfd_set_arch_mach(abfd, arch, mach)\
2144 BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
2146 #define bfd_relax_section(abfd, section, link_info, again) \
2147 BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
2149 #define bfd_link_hash_table_create(abfd) \
2150 BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
2152 #define bfd_link_add_symbols(abfd, info) \
2153 BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
2155 #define bfd_final_link(abfd, info) \
2156 BFD_SEND (abfd, _bfd_final_link, (abfd, info))
2158 #define bfd_free_cached_info(abfd) \
2159 BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
2161 #define bfd_get_dynamic_symtab_upper_bound(abfd) \
2162 BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
2164 #define bfd_print_private_bfd_data(abfd, file)\
2165 BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file))
2167 #define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
2168 BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
2170 #define bfd_get_dynamic_reloc_upper_bound(abfd) \
2171 BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
2173 #define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
2174 BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
2176 extern bfd_byte *bfd_get_relocated_section_contents
2177 PARAMS ((bfd *, struct bfd_link_info *,
2178 struct bfd_link_order *, bfd_byte *,
2179 boolean, asymbol **));
2182 bfd_get_next_mapent PARAMS ((bfd *abfd, symindex previous, carsym **sym));
2185 bfd_set_archive_head PARAMS ((bfd *output, bfd *new_head));
2188 bfd_openr_next_archived_file PARAMS ((bfd *archive, bfd *previous));
2191 bfd_core_file_failing_command PARAMS ((bfd *abfd));
2194 bfd_core_file_failing_signal PARAMS ((bfd *abfd));
2197 core_file_matches_executable_p
2198 PARAMS ((bfd *core_bfd, bfd *exec_bfd));
2200 #define BFD_SEND(bfd, message, arglist) \
2201 ((*((bfd)->xvec->message)) arglist)
2203 #ifdef DEBUG_BFD_SEND
2205 #define BFD_SEND(bfd, message, arglist) \
2206 (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
2207 ((*((bfd)->xvec->message)) arglist) : \
2208 (bfd_assert (__FILE__,__LINE__), NULL))
2210 #define BFD_SEND_FMT(bfd, message, arglist) \
2211 (((bfd)->xvec->message[(int)((bfd)->format)]) arglist)
2213 #ifdef DEBUG_BFD_SEND
2215 #define BFD_SEND_FMT(bfd, message, arglist) \
2216 (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
2217 (((bfd)->xvec->message[(int)((bfd)->format)]) arglist) : \
2218 (bfd_assert (__FILE__,__LINE__), NULL))
2221 bfd_target_unknown_flavour,
2222 bfd_target_aout_flavour,
2223 bfd_target_coff_flavour,
2224 bfd_target_ecoff_flavour,
2225 bfd_target_elf_flavour,
2226 bfd_target_ieee_flavour,
2227 bfd_target_nlm_flavour,
2228 bfd_target_oasys_flavour,
2229 bfd_target_tekhex_flavour,
2230 bfd_target_srec_flavour,
2231 bfd_target_ihex_flavour,
2232 bfd_target_som_flavour,
2233 bfd_target_os9k_flavour,
2234 bfd_target_versados_flavour,
2235 bfd_target_msdos_flavour
2238 enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
2240 /* Forward declaration. */
2241 typedef struct bfd_link_info _bfd_link_info;
2243 typedef struct bfd_target
2246 enum bfd_flavour flavour;
2247 enum bfd_endian byteorder;
2248 enum bfd_endian header_byteorder;
2249 flagword object_flags;
2250 flagword section_flags;
2251 char symbol_leading_char;
2253 unsigned short ar_max_namelen;
2254 bfd_vma (*bfd_getx64) PARAMS ((const bfd_byte *));
2255 bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((const bfd_byte *));
2256 void (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *));
2257 bfd_vma (*bfd_getx32) PARAMS ((const bfd_byte *));
2258 bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((const bfd_byte *));
2259 void (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *));
2260 bfd_vma (*bfd_getx16) PARAMS ((const bfd_byte *));
2261 bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((const bfd_byte *));
2262 void (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *));
2263 bfd_vma (*bfd_h_getx64) PARAMS ((const bfd_byte *));
2264 bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((const bfd_byte *));
2265 void (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *));
2266 bfd_vma (*bfd_h_getx32) PARAMS ((const bfd_byte *));
2267 bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((const bfd_byte *));
2268 void (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *));
2269 bfd_vma (*bfd_h_getx16) PARAMS ((const bfd_byte *));
2270 bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((const bfd_byte *));
2271 void (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *));
2272 const struct bfd_target *(*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *));
2273 boolean (*_bfd_set_format[bfd_type_end]) PARAMS ((bfd *));
2274 boolean (*_bfd_write_contents[bfd_type_end]) PARAMS ((bfd *));
2276 /* Generic entry points. */
2277 #define BFD_JUMP_TABLE_GENERIC(NAME)\
2278 CAT(NAME,_close_and_cleanup),\
2279 CAT(NAME,_bfd_free_cached_info),\
2280 CAT(NAME,_new_section_hook),\
2281 CAT(NAME,_get_section_contents),\
2282 CAT(NAME,_get_section_contents_in_window)
2284 /* Called when the BFD is being closed to do any necessary cleanup. */
2285 boolean (*_close_and_cleanup) PARAMS ((bfd *));
2286 /* Ask the BFD to free all cached information. */
2287 boolean (*_bfd_free_cached_info) PARAMS ((bfd *));
2288 /* Called when a new section is created. */
2289 boolean (*_new_section_hook) PARAMS ((bfd *, sec_ptr));
2290 /* Read the contents of a section. */
2291 boolean (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
2292 file_ptr, bfd_size_type));
2293 boolean (*_bfd_get_section_contents_in_window)
2294 PARAMS ((bfd *, sec_ptr, bfd_window *,
2295 file_ptr, bfd_size_type));
2297 /* Entry points to copy private data. */
2298 #define BFD_JUMP_TABLE_COPY(NAME)\
2299 CAT(NAME,_bfd_copy_private_bfd_data),\
2300 CAT(NAME,_bfd_merge_private_bfd_data),\
2301 CAT(NAME,_bfd_copy_private_section_data),\
2302 CAT(NAME,_bfd_copy_private_symbol_data),\
2303 CAT(NAME,_bfd_set_private_flags),\
2304 CAT(NAME,_bfd_print_private_bfd_data)\
2305 /* Called to copy BFD general private data from one object file
2307 boolean (*_bfd_copy_private_bfd_data) PARAMS ((bfd *, bfd *));
2308 /* Called to merge BFD general private data from one object file
2309 to a common output file when linking. */
2310 boolean (*_bfd_merge_private_bfd_data) PARAMS ((bfd *, bfd *));
2311 /* Called to copy BFD private section data from one object file
2313 boolean (*_bfd_copy_private_section_data) PARAMS ((bfd *, sec_ptr,
2315 /* Called to copy BFD private symbol data from one symbol
2317 boolean (*_bfd_copy_private_symbol_data) PARAMS ((bfd *, asymbol *,
2319 /* Called to set private backend flags */
2320 boolean (*_bfd_set_private_flags) PARAMS ((bfd *, flagword));
2322 /* Called to print private BFD data */
2323 boolean (*_bfd_print_private_bfd_data) PARAMS ((bfd *, PTR));
2325 /* Core file entry points. */
2326 #define BFD_JUMP_TABLE_CORE(NAME)\
2327 CAT(NAME,_core_file_failing_command),\
2328 CAT(NAME,_core_file_failing_signal),\
2329 CAT(NAME,_core_file_matches_executable_p)
2330 char * (*_core_file_failing_command) PARAMS ((bfd *));
2331 int (*_core_file_failing_signal) PARAMS ((bfd *));
2332 boolean (*_core_file_matches_executable_p) PARAMS ((bfd *, bfd *));
2334 /* Archive entry points. */
2335 #define BFD_JUMP_TABLE_ARCHIVE(NAME)\
2336 CAT(NAME,_slurp_armap),\
2337 CAT(NAME,_slurp_extended_name_table),\
2338 CAT(NAME,_construct_extended_name_table),\
2339 CAT(NAME,_truncate_arname),\
2340 CAT(NAME,_write_armap),\
2341 CAT(NAME,_read_ar_hdr),\
2342 CAT(NAME,_openr_next_archived_file),\
2343 CAT(NAME,_get_elt_at_index),\
2344 CAT(NAME,_generic_stat_arch_elt),\
2345 CAT(NAME,_update_armap_timestamp)
2346 boolean (*_bfd_slurp_armap) PARAMS ((bfd *));
2347 boolean (*_bfd_slurp_extended_name_table) PARAMS ((bfd *));
2348 boolean (*_bfd_construct_extended_name_table)
2349 PARAMS ((bfd *, char **, bfd_size_type *, const char **));
2350 void (*_bfd_truncate_arname) PARAMS ((bfd *, CONST char *, char *));
2351 boolean (*write_armap) PARAMS ((bfd *arch,
2352 unsigned int elength,
2354 unsigned int orl_count,
2356 PTR (*_bfd_read_ar_hdr_fn) PARAMS ((bfd *));
2357 bfd * (*openr_next_archived_file) PARAMS ((bfd *arch, bfd *prev));
2358 #define bfd_get_elt_at_index(b,i) BFD_SEND(b, _bfd_get_elt_at_index, (b,i))
2359 bfd * (*_bfd_get_elt_at_index) PARAMS ((bfd *, symindex));
2360 int (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *));
2361 boolean (*_bfd_update_armap_timestamp) PARAMS ((bfd *));
2363 /* Entry points used for symbols. */
2364 #define BFD_JUMP_TABLE_SYMBOLS(NAME)\
2365 CAT(NAME,_get_symtab_upper_bound),\
2366 CAT(NAME,_get_symtab),\
2367 CAT(NAME,_make_empty_symbol),\
2368 CAT(NAME,_print_symbol),\
2369 CAT(NAME,_get_symbol_info),\
2370 CAT(NAME,_bfd_is_local_label),\
2371 CAT(NAME,_get_lineno),\
2372 CAT(NAME,_find_nearest_line),\
2373 CAT(NAME,_bfd_make_debug_symbol),\
2374 CAT(NAME,_read_minisymbols),\
2375 CAT(NAME,_minisymbol_to_symbol)
2376 long (*_bfd_get_symtab_upper_bound) PARAMS ((bfd *));
2377 long (*_bfd_canonicalize_symtab) PARAMS ((bfd *,
2378 struct symbol_cache_entry **));
2379 struct symbol_cache_entry *
2380 (*_bfd_make_empty_symbol) PARAMS ((bfd *));
2381 void (*_bfd_print_symbol) PARAMS ((bfd *, PTR,
2382 struct symbol_cache_entry *,
2383 bfd_print_symbol_type));
2384 #define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e))
2385 void (*_bfd_get_symbol_info) PARAMS ((bfd *,
2386 struct symbol_cache_entry *,
2388 #define bfd_get_symbol_info(b,p,e) BFD_SEND(b, _bfd_get_symbol_info, (b,p,e))
2389 boolean (*_bfd_is_local_label) PARAMS ((bfd *, asymbol *));
2391 alent * (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *));
2392 boolean (*_bfd_find_nearest_line) PARAMS ((bfd *abfd,
2393 struct sec *section, struct symbol_cache_entry **symbols,
2394 bfd_vma offset, CONST char **file, CONST char **func,
2395 unsigned int *line));
2396 /* Back-door to allow format-aware applications to create debug symbols
2397 while using BFD for everything else. Currently used by the assembler
2398 when creating COFF files. */
2399 asymbol * (*_bfd_make_debug_symbol) PARAMS ((
2402 unsigned long size));
2403 #define bfd_read_minisymbols(b, d, m, s) \
2404 BFD_SEND (b, _read_minisymbols, (b, d, m, s))
2405 long (*_read_minisymbols) PARAMS ((bfd *, boolean, PTR *,
2407 #define bfd_minisymbol_to_symbol(b, d, m, f) \
2408 BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
2409 asymbol *(*_minisymbol_to_symbol) PARAMS ((bfd *, boolean, const PTR,
2412 /* Routines for relocs. */
2413 #define BFD_JUMP_TABLE_RELOCS(NAME)\
2414 CAT(NAME,_get_reloc_upper_bound),\
2415 CAT(NAME,_canonicalize_reloc),\
2416 CAT(NAME,_bfd_reloc_type_lookup)
2417 long (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr));
2418 long (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **,
2419 struct symbol_cache_entry **));
2420 /* See documentation on reloc types. */
2422 (*reloc_type_lookup) PARAMS ((bfd *abfd,
2423 bfd_reloc_code_real_type code));
2425 /* Routines used when writing an object file. */
2426 #define BFD_JUMP_TABLE_WRITE(NAME)\
2427 CAT(NAME,_set_arch_mach),\
2428 CAT(NAME,_set_section_contents)
2429 boolean (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture,
2431 boolean (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
2432 file_ptr, bfd_size_type));
2434 /* Routines used by the linker. */
2435 #define BFD_JUMP_TABLE_LINK(NAME)\
2436 CAT(NAME,_sizeof_headers),\
2437 CAT(NAME,_bfd_get_relocated_section_contents),\
2438 CAT(NAME,_bfd_relax_section),\
2439 CAT(NAME,_bfd_link_hash_table_create),\
2440 CAT(NAME,_bfd_link_add_symbols),\
2441 CAT(NAME,_bfd_final_link),\
2442 CAT(NAME,_bfd_link_split_section)
2443 int (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean));
2444 bfd_byte * (*_bfd_get_relocated_section_contents) PARAMS ((bfd *,
2445 struct bfd_link_info *, struct bfd_link_order *,
2446 bfd_byte *data, boolean relocateable,
2447 struct symbol_cache_entry **));
2449 boolean (*_bfd_relax_section) PARAMS ((bfd *, struct sec *,
2450 struct bfd_link_info *, boolean *again));
2452 /* Create a hash table for the linker. Different backends store
2453 different information in this table. */
2454 struct bfd_link_hash_table *(*_bfd_link_hash_table_create) PARAMS ((bfd *));
2456 /* Add symbols from this object file into the hash table. */
2457 boolean (*_bfd_link_add_symbols) PARAMS ((bfd *, struct bfd_link_info *));
2459 /* Do a link based on the link_order structures attached to each
2460 section of the BFD. */
2461 boolean (*_bfd_final_link) PARAMS ((bfd *, struct bfd_link_info *));
2463 /* Should this section be split up into smaller pieces during linking. */
2464 boolean (*_bfd_link_split_section) PARAMS ((bfd *, struct sec *));
2466 /* Routines to handle dynamic symbols and relocs. */
2467 #define BFD_JUMP_TABLE_DYNAMIC(NAME)\
2468 CAT(NAME,_get_dynamic_symtab_upper_bound),\
2469 CAT(NAME,_canonicalize_dynamic_symtab),\
2470 CAT(NAME,_get_dynamic_reloc_upper_bound),\
2471 CAT(NAME,_canonicalize_dynamic_reloc)
2472 /* Get the amount of memory required to hold the dynamic symbols. */
2473 long (*_bfd_get_dynamic_symtab_upper_bound) PARAMS ((bfd *));
2474 /* Read in the dynamic symbols. */
2475 long (*_bfd_canonicalize_dynamic_symtab)
2476 PARAMS ((bfd *, struct symbol_cache_entry **));
2477 /* Get the amount of memory required to hold the dynamic relocs. */
2478 long (*_bfd_get_dynamic_reloc_upper_bound) PARAMS ((bfd *));
2479 /* Read in the dynamic relocs. */
2480 long (*_bfd_canonicalize_dynamic_reloc)
2481 PARAMS ((bfd *, arelent **, struct symbol_cache_entry **));
2486 bfd_find_target PARAMS ((CONST char *target_name, bfd *abfd));
2489 bfd_target_list PARAMS ((void));
2492 bfd_check_format PARAMS ((bfd *abfd, bfd_format format));
2495 bfd_check_format_matches PARAMS ((bfd *abfd, bfd_format format, char ***matching));
2498 bfd_set_format PARAMS ((bfd *abfd, bfd_format format));
2501 bfd_format_string PARAMS ((bfd_format format));