1 /* Main header file for the bfd library -- portable access to object files.
2 Copyright 1990, 1991, 1992, 1993 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., 675 Mass Ave, Cambridge, MA 02139, 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__
50 #define BFD_VERSION "2.2"
52 #define BFD_ARCH_SIZE @WORDSIZE@
54 #if BFD_ARCH_SIZE >= 64
60 #define INLINE __inline__
66 /* 64-bit type definition (if any) from bfd's sysdep.h goes here */
69 /* forward declaration */
70 typedef struct _bfd bfd
;
72 /* To squelch erroneous compiler warnings ("illegal pointer
73 combination") from the SVR3 compiler, we would like to typedef
74 boolean to int (it doesn't like functions which return boolean.
75 Making sure they are never implicitly declared to return int
76 doesn't seem to help). But this file is not configured based on
78 /* General rules: functions which are boolean return true on success
79 and false on failure (unless they're a predicate). -- bfd.doc */
80 /* I'm sure this is going to break something and someone is going to
81 force me to change it. */
82 /* typedef enum boolean {false, true} boolean; */
83 /* Yup, SVR4 has a "typedef enum boolean" in <sys/types.h> -fnf */
84 typedef enum bfd_boolean
{false, true} boolean
;
86 /* A pointer to a position in a file. */
87 /* FIXME: This should be using off_t from <sys/types.h>.
88 For now, try to avoid breaking stuff by not including <sys/types.h> here.
89 This will break on systems with 64-bit file offsets (e.g. 4.4BSD).
90 Probably the best long-term answer is to avoid using file_ptr AND off_t
91 in this header file, and to handle this in the BFD implementation
92 rather than in its interface. */
93 /* typedef off_t file_ptr; */
94 typedef long int file_ptr
;
96 /* Support for different sizes of target format ints and addresses. If the
97 host implements 64-bit values, it defines HOST_64_BIT to be the appropriate
98 type. Otherwise, this code will fall back on gcc's "long long" type if gcc
99 is being used. HOST_64_BIT must be defined in such a way as to be a valid
100 type name by itself or with "unsigned" prefixed. It should be a signed
103 If neither is the case, then compilation will fail if 64-bit targets are
104 requested. If you don't request any 64-bit targets, you should be safe. */
108 #if defined (__GNUC__) && !defined (HOST_64_BIT)
109 #define HOST_64_BIT long long
110 typedef HOST_64_BIT int64_type
;
111 typedef unsigned HOST_64_BIT uint64_type
;
114 #if !defined (uint64_type) && defined (__GNUC__)
115 #define uint64_type unsigned long long
116 #define int64_type long long
117 #define uint64_typeLOW(x) (unsigned long)(((x) & 0xffffffff))
118 #define uint64_typeHIGH(x) (unsigned long)(((x) >> 32) & 0xffffffff)
121 typedef unsigned HOST_64_BIT bfd_vma
;
122 typedef HOST_64_BIT bfd_signed_vma
;
123 typedef unsigned HOST_64_BIT bfd_size_type
;
124 typedef unsigned HOST_64_BIT symvalue
;
125 #define fprintf_vma(s,x) \
126 fprintf(s,"%08x%08x", uint64_typeHIGH(x), uint64_typeLOW(x))
127 #define sprintf_vma(s,x) \
128 sprintf(s,"%08x%08x", uint64_typeHIGH(x), uint64_typeLOW(x))
129 #else /* not BFD64 */
131 /* Represent a target address. Also used as a generic unsigned type
132 which is guaranteed to be big enough to hold any arithmetic types
133 we need to deal with. */
134 typedef unsigned long bfd_vma
;
136 /* A generic signed type which is guaranteed to be big enough to hold any
137 arithmetic types we need to deal with. Can be assumed to be compatible
138 with bfd_vma in the same way that signed and unsigned ints are compatible
139 (as parameters, in assignment, etc). */
140 typedef long bfd_signed_vma
;
142 typedef unsigned long symvalue
;
143 typedef unsigned long bfd_size_type
;
145 /* Print a bfd_vma x on stream s. */
146 #define fprintf_vma(s,x) fprintf(s, "%08lx", x)
147 #define sprintf_vma(s,x) sprintf(s, "%08lx", x)
148 #endif /* not BFD64 */
149 #define printf_vma(x) fprintf_vma(stdout,x)
151 typedef unsigned int flagword
; /* 32 bits of flags */
155 typedef enum bfd_format
{
156 bfd_unknown
= 0, /* file format is unknown */
157 bfd_object
, /* linker/assember/compiler output */
158 bfd_archive
, /* object archive file */
159 bfd_core
, /* core dump */
160 bfd_type_end
} /* marks the end; don't use it! */
163 /* Values that may appear in the flags field of a BFD. These also
164 appear in the object_flags field of the bfd_target structure, where
165 they indicate the set of flags used by that backend (not all flags
166 are meaningful for all object file formats) (FIXME: at the moment,
167 the object_flags values have mostly just been copied from backend
168 to another, and are not necessarily correct). */
171 #define NO_FLAGS 0x00
173 /* BFD contains relocation entries. */
174 #define HAS_RELOC 0x01
176 /* BFD is directly executable. */
179 /* BFD has line number information (basically used for F_LNNO in a
181 #define HAS_LINENO 0x04
183 /* BFD has debugging information. */
184 #define HAS_DEBUG 0x08
186 /* BFD has symbols. */
187 #define HAS_SYMS 0x10
189 /* BFD has local symbols (basically used for F_LSYMS in a COFF
191 #define HAS_LOCALS 0x20
193 /* BFD is a dynamic object. */
196 /* Text section is write protected (if D_PAGED is not set, this is
197 like an a.out NMAGIC file) (the linker sets this by default, but
198 clears it for -r or -N). */
201 /* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the
202 linker sets this by default, but clears it for -r or -n or -N). */
203 #define D_PAGED 0x100
205 /* BFD is relaxable (this means that bfd_relax_section may be able to
207 #define BFD_IS_RELAXABLE 0x200
209 /* symbols and relocation */
211 typedef unsigned long symindex
;
213 #define BFD_NO_MORE_SYMBOLS ((symindex) ~0)
215 typedef enum bfd_symclass
{
216 bfd_symclass_unknown
= 0,
217 bfd_symclass_fcommon
, /* fortran common symbols */
218 bfd_symclass_global
, /* global symbol, what a surprise */
219 bfd_symclass_debugger
, /* some debugger symbol */
220 bfd_symclass_undefined
/* none known */
224 /* general purpose part of a symbol;
225 target specific parts will be found in libcoff.h, liba.out.h etc */
228 #define bfd_get_section(x) ((x)->section)
229 #define bfd_get_output_section(x) ((x)->section->output_section)
230 #define bfd_set_section(x,y) ((x)->section) = (y)
231 #define bfd_asymbol_base(x) ((x)->section->vma)
232 #define bfd_asymbol_value(x) (bfd_asymbol_base(x) + (x)->value)
233 #define bfd_asymbol_name(x) ((x)->name)
234 /*Perhaps future: #define bfd_asymbol_bfd(x) ((x)->section->owner)*/
235 #define bfd_asymbol_bfd(x) ((x)->the_bfd)
236 #define bfd_asymbol_flavour(x) (bfd_asymbol_bfd(x)->xvec->flavour)
238 /* This is a type pun with struct ranlib on purpose! */
239 typedef struct carsym
{
241 file_ptr file_offset
; /* look here to find the file */
242 } carsym
; /* to make these you call a carsymogen */
245 /* Used in generating armaps. Perhaps just a forward definition would do? */
246 struct orl
{ /* output ranlib */
247 char **name
; /* symbol name */
248 file_ptr pos
; /* bfd* or file position */
249 int namidx
; /* index into string table */
254 /* Linenumber stuff */
255 typedef struct lineno_cache_entry
{
256 unsigned int line_number
; /* Linenumber from start of function*/
258 struct symbol_cache_entry
*sym
; /* Function name */
259 unsigned long offset
; /* Offset into section */
263 /* object and core file sections */
266 #define align_power(addr, align) \
267 ( ((addr) + ((1<<(align))-1)) & (-1 << (align)))
269 typedef struct sec
*sec_ptr
;
271 #define bfd_get_section_name(bfd, ptr) ((ptr)->name + 0)
272 #define bfd_get_section_vma(bfd, ptr) ((ptr)->vma + 0)
273 #define bfd_get_section_alignment(bfd, ptr) ((ptr)->alignment_power + 0)
274 #define bfd_section_name(bfd, ptr) ((ptr)->name)
275 #define bfd_section_size(bfd, ptr) (bfd_get_section_size_before_reloc(ptr))
276 #define bfd_section_vma(bfd, ptr) ((ptr)->vma)
277 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power)
278 #define bfd_get_section_flags(bfd, ptr) ((ptr)->flags + 0)
279 #define bfd_get_section_userdata(bfd, ptr) ((ptr)->userdata)
281 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0)
283 #define bfd_set_section_vma(bfd, ptr, val) (((ptr)->vma = (ptr)->lma= (val)), ((ptr)->user_set_vma = true), true)
284 #define bfd_set_section_alignment(bfd, ptr, val) (((ptr)->alignment_power = (val)),true)
285 #define bfd_set_section_userdata(bfd, ptr, val) (((ptr)->userdata = (val)),true)
287 typedef struct stat stat_type
;
289 /** Error handling */
291 typedef enum bfd_error
{
292 no_error
= 0, system_call_error
, invalid_target
,
293 wrong_format
, invalid_operation
, no_memory
,
294 no_symbols
, no_relocation_info
,
295 no_more_archived_files
, malformed_archive
,
296 symbol_not_found
, file_not_recognized
,
297 file_ambiguously_recognized
, no_contents
,
298 bfd_error_nonrepresentable_section
,
299 no_debug_section
, bad_value
,
301 /* An input file is shorter than expected. */
304 invalid_error_code
} bfd_ec
;
306 extern bfd_ec bfd_error
;
307 struct reloc_cache_entry
;
311 typedef struct bfd_error_vector
{
312 void (* nonrepresentable_section
) PARAMS ((CONST bfd
*CONST abfd
,
313 CONST
char *CONST name
));
314 void (* undefined_symbol
) PARAMS ((CONST
struct reloc_cache_entry
*rel
,
315 CONST
struct bfd_seclet
*sec
));
316 void (* reloc_value_truncated
) PARAMS ((CONST
struct
317 reloc_cache_entry
*rel
,
318 struct bfd_seclet
*sec
));
320 void (* reloc_dangerous
) PARAMS ((CONST
struct reloc_cache_entry
*rel
,
321 CONST
struct bfd_seclet
*sec
));
323 } bfd_error_vector_type
;
325 CONST
char *bfd_errmsg
PARAMS ((bfd_ec error_tag
));
326 void bfd_perror
PARAMS ((CONST
char *message
));
329 typedef enum bfd_print_symbol
331 bfd_print_symbol_name
,
332 bfd_print_symbol_more
,
334 } bfd_print_symbol_type
;
337 /* Information about a symbol that nm needs. */
339 typedef struct _symbol_info
343 CONST
char *name
; /* Symbol name. */
344 char stab_other
; /* Unused. */
345 short stab_desc
; /* Info for N_TYPE. */
346 CONST
char *stab_name
;
349 /* The code that implements targets can initialize a jump table with this
350 macro. It must name all its routines the same way (a prefix plus
351 the standard routine suffix), or it must #define the routines that
352 are not so named, before calling JUMP_TABLE in the initializer. */
354 /* Semi-portable string concatenation in cpp.
355 The CAT4 hack is to avoid a problem with some strict ANSI C preprocessors.
356 The problem is, "32_" is not a valid preprocessing token, and we don't
357 want extra underscores (e.g., "nlm_32_"). The XCAT2 macro will cause the
358 inner CAT macros to be evaluated first, producing still-valid pp-tokens.
359 Then the final concatenation can be done. (Sigh.) */
362 #define CAT(a,b) a##b
363 #define CAT3(a,b,c) a##b##c
364 #define CAT4(a,b,c,d) a##b##c##d
367 #define CAT(a,b) a##b
368 #define CAT3(a,b,c) a##b##c
369 #define XCAT2(a,b) CAT(a,b)
370 #define CAT4(a,b,c,d) XCAT2(CAT(a,b),CAT(c,d))
372 #define CAT(a,b) a/**/b
373 #define CAT3(a,b,c) a/**/b/**/c
374 #define CAT4(a,b,c,d) a/**/b/**/c/**/d
379 #define JUMP_TABLE(NAME)\
380 CAT(NAME,_core_file_failing_command),\
381 CAT(NAME,_core_file_failing_signal),\
382 CAT(NAME,_core_file_matches_executable_p),\
383 CAT(NAME,_slurp_armap),\
384 CAT(NAME,_slurp_extended_name_table),\
385 CAT(NAME,_truncate_arname),\
386 CAT(NAME,_write_armap),\
387 CAT(NAME,_close_and_cleanup),\
388 CAT(NAME,_set_section_contents),\
389 CAT(NAME,_get_section_contents),\
390 CAT(NAME,_new_section_hook),\
391 CAT(NAME,_get_symtab_upper_bound),\
392 CAT(NAME,_get_symtab),\
393 CAT(NAME,_get_reloc_upper_bound),\
394 CAT(NAME,_canonicalize_reloc),\
395 CAT(NAME,_make_empty_symbol),\
396 CAT(NAME,_print_symbol),\
397 CAT(NAME,_get_symbol_info),\
398 CAT(NAME,_get_lineno),\
399 CAT(NAME,_set_arch_mach),\
400 CAT(NAME,_openr_next_archived_file),\
401 CAT(NAME,_find_nearest_line),\
402 CAT(NAME,_generic_stat_arch_elt),\
403 CAT(NAME,_sizeof_headers),\
404 CAT(NAME,_bfd_debug_info_start),\
405 CAT(NAME,_bfd_debug_info_end),\
406 CAT(NAME,_bfd_debug_info_accumulate),\
407 CAT(NAME,_bfd_get_relocated_section_contents),\
408 CAT(NAME,_bfd_relax_section),\
409 CAT(NAME,_bfd_seclet_link),\
410 CAT(NAME,_bfd_reloc_type_lookup),\
411 CAT(NAME,_bfd_make_debug_symbol)
413 #define COFF_SWAP_TABLE (PTR) &bfd_coff_std_swap_table
416 /* User program access to BFD facilities */
418 /* Cast from const char * to char * so that caller can assign to
419 a char * without a warning. */
420 #define bfd_get_filename(abfd) ((char *) (abfd)->filename)
421 #define bfd_get_format(abfd) ((abfd)->format)
422 #define bfd_get_target(abfd) ((abfd)->xvec->name)
423 #define bfd_get_flavour(abfd) ((abfd)->xvec->flavour)
424 #define bfd_get_file_flags(abfd) ((abfd)->flags)
425 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
426 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
427 #define bfd_my_archive(abfd) ((abfd)->my_archive)
428 #define bfd_has_map(abfd) ((abfd)->has_armap)
430 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
431 #define bfd_usrdata(abfd) ((abfd)->usrdata)
433 #define bfd_get_start_address(abfd) ((abfd)->start_address)
434 #define bfd_get_symcount(abfd) ((abfd)->symcount)
435 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
436 #define bfd_count_sections(abfd) ((abfd)->section_count)
438 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
440 /* Byte swapping routines. */
442 bfd_vma bfd_getb64
PARAMS ((unsigned char *));
443 bfd_vma bfd_getl64
PARAMS ((unsigned char *));
444 bfd_signed_vma bfd_getb_signed_64
PARAMS ((unsigned char *));
445 bfd_signed_vma bfd_getl_signed_64
PARAMS ((unsigned char *));
446 bfd_vma bfd_getb32
PARAMS ((unsigned char *));
447 bfd_vma bfd_getl32
PARAMS ((unsigned char *));
448 bfd_signed_vma bfd_getb_signed_32
PARAMS ((unsigned char *));
449 bfd_signed_vma bfd_getl_signed_32
PARAMS ((unsigned char *));
450 bfd_vma bfd_getb16
PARAMS ((unsigned char *));
451 bfd_vma bfd_getl16
PARAMS ((unsigned char *));
452 bfd_signed_vma bfd_getb_signed_16
PARAMS ((unsigned char *));
453 bfd_signed_vma bfd_getl_signed_16
PARAMS ((unsigned char *));
454 void bfd_putb64
PARAMS ((bfd_vma
, unsigned char *));
455 void bfd_putl64
PARAMS ((bfd_vma
, unsigned char *));
456 void bfd_putb32
PARAMS ((bfd_vma
, unsigned char *));
457 void bfd_putl32
PARAMS ((bfd_vma
, unsigned char *));
458 void bfd_putb16
PARAMS ((bfd_vma
, unsigned char *));
459 void bfd_putl16
PARAMS ((bfd_vma
, unsigned char *));
461 /* And more from the source. */
463 bfd_init
PARAMS ((void));
466 bfd_openr
PARAMS ((CONST
char *filename
, CONST
char*target
));
469 bfd_fdopenr
PARAMS ((CONST
char *filename
, CONST
char *target
, int fd
));
472 bfd_openw
PARAMS ((CONST
char *filename
, CONST
char *target
));
475 bfd_close
PARAMS ((bfd
*));
478 bfd_close_all_done
PARAMS ((bfd
*));
481 bfd_alloc_size
PARAMS ((bfd
*abfd
));
484 bfd_create
PARAMS ((CONST
char *filename
, bfd
*templ
));
487 /* Byte swapping macros for user section data. */
489 #define bfd_put_8(abfd, val, ptr) \
490 (*((unsigned char *)(ptr)) = (unsigned char)val)
491 #define bfd_put_signed_8 \
493 #define bfd_get_8(abfd, ptr) \
494 (*(unsigned char *)(ptr))
495 #define bfd_get_signed_8(abfd, ptr) \
496 ((*(unsigned char *)(ptr) ^ 0x80) - 0x80)
498 #define bfd_put_16(abfd, val, ptr) \
499 BFD_SEND(abfd, bfd_putx16, ((val),(ptr)))
500 #define bfd_put_signed_16 \
502 #define bfd_get_16(abfd, ptr) \
503 BFD_SEND(abfd, bfd_getx16, (ptr))
504 #define bfd_get_signed_16(abfd, ptr) \
505 BFD_SEND (abfd, bfd_getx_signed_16, (ptr))
507 #define bfd_put_32(abfd, val, ptr) \
508 BFD_SEND(abfd, bfd_putx32, ((val),(ptr)))
509 #define bfd_put_signed_32 \
511 #define bfd_get_32(abfd, ptr) \
512 BFD_SEND(abfd, bfd_getx32, (ptr))
513 #define bfd_get_signed_32(abfd, ptr) \
514 BFD_SEND(abfd, bfd_getx_signed_32, (ptr))
516 #define bfd_put_64(abfd, val, ptr) \
517 BFD_SEND(abfd, bfd_putx64, ((val), (ptr)))
518 #define bfd_put_signed_64 \
520 #define bfd_get_64(abfd, ptr) \
521 BFD_SEND(abfd, bfd_getx64, (ptr))
522 #define bfd_get_signed_64(abfd, ptr) \
523 BFD_SEND(abfd, bfd_getx_signed_64, (ptr))
526 /* Byte swapping macros for file header data. */
528 #define bfd_h_put_8(abfd, val, ptr) \
529 bfd_put_8 (abfd, val, ptr)
530 #define bfd_h_put_signed_8(abfd, val, ptr) \
531 bfd_put_8 (abfd, val, ptr)
532 #define bfd_h_get_8(abfd, ptr) \
533 bfd_get_8 (abfd, ptr)
534 #define bfd_h_get_signed_8(abfd, ptr) \
535 bfd_get_signed_8 (abfd, ptr)
537 #define bfd_h_put_16(abfd, val, ptr) \
538 BFD_SEND(abfd, bfd_h_putx16,(val,ptr))
539 #define bfd_h_put_signed_16 \
541 #define bfd_h_get_16(abfd, ptr) \
542 BFD_SEND(abfd, bfd_h_getx16,(ptr))
543 #define bfd_h_get_signed_16(abfd, ptr) \
544 BFD_SEND(abfd, bfd_h_getx_signed_16, (ptr))
546 #define bfd_h_put_32(abfd, val, ptr) \
547 BFD_SEND(abfd, bfd_h_putx32,(val,ptr))
548 #define bfd_h_put_signed_32 \
550 #define bfd_h_get_32(abfd, ptr) \
551 BFD_SEND(abfd, bfd_h_getx32,(ptr))
552 #define bfd_h_get_signed_32(abfd, ptr) \
553 BFD_SEND(abfd, bfd_h_getx_signed_32, (ptr))
555 #define bfd_h_put_64(abfd, val, ptr) \
556 BFD_SEND(abfd, bfd_h_putx64,(val, ptr))
557 #define bfd_h_put_signed_64 \
559 #define bfd_h_get_64(abfd, ptr) \
560 BFD_SEND(abfd, bfd_h_getx64,(ptr))
561 #define bfd_h_get_signed_64(abfd, ptr) \
562 BFD_SEND(abfd, bfd_h_getx_signed_64, (ptr))
566 /* The name of the section, the name isn't a copy, the pointer is
567 the same as that passed to bfd_make_section. */
571 /* Which section is it 0.nth */
575 /* The next section in the list belonging to the BFD, or NULL. */
579 /* The field flags contains attributes of the section. Some of
580 flags are read in from the object file, and some are
581 synthesized from other information. */
585 #define SEC_NO_FLAGS 0x000
587 /* Tells the OS to allocate space for this section when loaded.
588 This would clear for a section containing debug information
590 #define SEC_ALLOC 0x001
592 /* Tells the OS to load the section from the file when loading.
593 This would be clear for a .bss section */
594 #define SEC_LOAD 0x002
596 /* The section contains data still to be relocated, so there will
597 be some relocation information too. */
598 #define SEC_RELOC 0x004
600 #if 0 /* Obsolete ? */
601 #define SEC_BALIGN 0x008
604 /* A signal to the OS that the section contains read only
606 #define SEC_READONLY 0x010
608 /* The section contains code only. */
609 #define SEC_CODE 0x020
611 /* The section contains data only. */
612 #define SEC_DATA 0x040
614 /* The section will reside in ROM. */
615 #define SEC_ROM 0x080
617 /* The section contains constructor information. This section
618 type is used by the linker to create lists of constructors and
619 destructors used by <<g++>>. When a back end sees a symbol
620 which should be used in a constructor list, it creates a new
621 section for the type of name (eg <<__CTOR_LIST__>>), attaches
622 the symbol to it and builds a relocation. To build the lists
623 of constructors, all the linker has to do is catenate all the
624 sections called <<__CTOR_LIST__>> and relocte the data
625 contained within - exactly the operations it would peform on
627 #define SEC_CONSTRUCTOR 0x100
629 /* The section is a constuctor, and should be placed at the
630 end of the text, data, or bss section(?). */
631 #define SEC_CONSTRUCTOR_TEXT 0x1100
632 #define SEC_CONSTRUCTOR_DATA 0x2100
633 #define SEC_CONSTRUCTOR_BSS 0x3100
635 /* The section has contents - a data section could be
636 <<SEC_ALLOC>> | <<SEC_HAS_CONTENTS>>, a debug section could be
637 <<SEC_HAS_CONTENTS>> */
638 #define SEC_HAS_CONTENTS 0x200
640 /* An instruction to the linker not to output sections
641 containing this flag even if they have information which
642 would normally be written. */
643 #define SEC_NEVER_LOAD 0x400
645 /* The section is a shared library section. The linker must leave
646 these completely alone, as the vma and size are used when
647 the executable is loaded. */
648 #define SEC_SHARED_LIBRARY 0x800
650 /* The section is a common section (symbols may be defined
651 multiple times, the value of a symbol is the amount of
652 space it requires, and the largest symbol value is the one
653 used). Most targets have exactly one of these (which we
654 translate to bfd_com_section), but ECOFF has two. */
655 #define SEC_IS_COMMON 0x8000
657 /* The section contains only debugging information. For
658 example, this is set for ELF .debug and .stab sections.
659 strip tests this flag to see if a section can be
661 #define SEC_DEBUGGING 0x10000
663 /* End of section flags. */
665 /* The virtual memory address of the section - where it will be
666 at run time. The symbols are relocated against this. The
667 user_set_vma flag is maintained by bfd; if it's not set, the
668 backend can assign addresses (for example, in <<a.out>>, where
669 the default address for <<.data>> is dependent on the specific
670 target and various flags). */
673 boolean user_set_vma
;
675 /* The load address of the section - where it would be in a
676 rom image, really only used for writing section header
681 /* The size of the section in bytes, as it will be output.
682 contains a value even if the section has no contents (eg, the
683 size of <<.bss>>). This will be filled in after relocation */
685 bfd_size_type _cooked_size
;
687 /* The size on disk of the section in bytes originally. Normally this
688 value is the same as the size, but if some relaxing has
689 been done, then this value will be bigger. */
691 bfd_size_type _raw_size
;
693 /* If this section is going to be output, then this value is the
694 offset into the output section of the first byte in the input
695 section. Eg, if this was going to start at the 100th byte in
696 the output section, this value would be 100. */
698 bfd_vma output_offset
;
700 /* The output section through which to map on output. */
702 struct sec
*output_section
;
704 /* The alignment requirement of the section, as an exponent - eg
705 3 aligns to 2^3 (or 8) */
707 unsigned int alignment_power
;
709 /* If an input section, a pointer to a vector of relocation
710 records for the data in this section. */
712 struct reloc_cache_entry
*relocation
;
714 /* If an output section, a pointer to a vector of pointers to
715 relocation records for the data in this section. */
717 struct reloc_cache_entry
**orelocation
;
719 /* The number of relocation records in one of the above */
721 unsigned reloc_count
;
723 /* Information below is back end specific - and not always used
726 /* File position of section data */
730 /* File position of relocation info */
732 file_ptr rel_filepos
;
734 /* File position of line data */
736 file_ptr line_filepos
;
738 /* Pointer to data for applications */
742 struct lang_output_section
*otheruserdata
;
744 /* Attached line number information */
748 /* Number of line number records */
750 unsigned int lineno_count
;
752 /* When a section is being output, this value changes as more
753 linenumbers are written out */
755 file_ptr moving_line_filepos
;
757 /* what the section number is in the target world */
763 /* If this is a constructor section then here is a list of the
764 relocations created to relocate items within it. */
766 struct relent_chain
*constructor_chain
;
768 /* The BFD which owns the section. */
773 /* A symbol which points at this section only */
774 struct symbol_cache_entry
*symbol
;
775 struct symbol_cache_entry
**symbol_ptr_ptr
;
777 struct bfd_seclet
*seclets_head
;
778 struct bfd_seclet
*seclets_tail
;
782 /* These sections are global, and are managed by BFD. The application
783 and target back end are not permitted to change the values in
785 #define BFD_ABS_SECTION_NAME "*ABS*"
786 #define BFD_UND_SECTION_NAME "*UND*"
787 #define BFD_COM_SECTION_NAME "*COM*"
788 #define BFD_IND_SECTION_NAME "*IND*"
790 /* the absolute section */
791 extern asection bfd_abs_section
;
792 /* Pointer to the undefined section */
793 extern asection bfd_und_section
;
794 /* Pointer to the common section */
795 extern asection bfd_com_section
;
796 /* Pointer to the indirect section */
797 extern asection bfd_ind_section
;
799 extern struct symbol_cache_entry
*bfd_abs_symbol
;
800 extern struct symbol_cache_entry
*bfd_com_symbol
;
801 extern struct symbol_cache_entry
*bfd_und_symbol
;
802 extern struct symbol_cache_entry
*bfd_ind_symbol
;
803 #define bfd_get_section_size_before_reloc(section) \
804 (section->reloc_done ? (abort(),1): (section)->_raw_size)
805 #define bfd_get_section_size_after_reloc(section) \
806 ((section->reloc_done) ? (section)->_cooked_size: (abort(),1))
808 bfd_get_section_by_name
PARAMS ((bfd
*abfd
, CONST
char *name
));
811 bfd_make_section_old_way
PARAMS ((bfd
*, CONST
char *name
));
814 bfd_make_section_anyway
PARAMS ((bfd
*, CONST
char *name
));
817 bfd_make_section
PARAMS ((bfd
*, CONST
char *name
));
820 bfd_set_section_flags
PARAMS ((bfd
*, asection
*, flagword
));
823 bfd_map_over_sections
PARAMS ((bfd
*abfd
,
824 void (*func
)(bfd
*abfd
,
830 bfd_set_section_size
PARAMS ((bfd
*, asection
*, bfd_size_type val
));
833 bfd_set_section_contents
838 bfd_size_type count
));
841 bfd_get_section_contents
842 PARAMS ((bfd
*abfd
, asection
*section
, PTR location
,
843 file_ptr offset
, bfd_size_type count
));
845 enum bfd_architecture
847 bfd_arch_unknown
, /* File arch not known */
848 bfd_arch_obscure
, /* Arch known, not one of these */
849 bfd_arch_m68k
, /* Motorola 68xxx */
850 bfd_arch_vax
, /* DEC Vax */
851 bfd_arch_i960
, /* Intel 960 */
852 /* The order of the following is important.
853 lower number indicates a machine type that
854 only accepts a subset of the instructions
855 available to machines with higher numbers.
856 The exception is the "ca", which is
857 incompatible with all other machines except
860 #define bfd_mach_i960_core 1
861 #define bfd_mach_i960_ka_sa 2
862 #define bfd_mach_i960_kb_sb 3
863 #define bfd_mach_i960_mc 4
864 #define bfd_mach_i960_xa 5
865 #define bfd_mach_i960_ca 6
867 bfd_arch_a29k
, /* AMD 29000 */
868 bfd_arch_sparc
, /* SPARC */
869 bfd_arch_mips
, /* MIPS Rxxxx */
870 bfd_arch_i386
, /* Intel 386 */
871 bfd_arch_we32k
, /* AT&T WE32xxx */
872 bfd_arch_tahoe
, /* CCI/Harris Tahoe */
873 bfd_arch_i860
, /* Intel 860 */
874 bfd_arch_romp
, /* IBM ROMP PC/RT */
875 bfd_arch_alliant
, /* Alliant */
876 bfd_arch_convex
, /* Convex */
877 bfd_arch_m88k
, /* Motorola 88xxx */
878 bfd_arch_pyramid
, /* Pyramid Technology */
879 bfd_arch_h8300
, /* Hitachi H8/300 */
880 #define bfd_mach_h8300 1
881 #define bfd_mach_h8300h 2
882 bfd_arch_rs6000
, /* IBM RS/6000 */
883 bfd_arch_hppa
, /* HP PA RISC */
884 bfd_arch_z8k
, /* Zilog Z8000 */
885 #define bfd_mach_z8001 1
886 #define bfd_mach_z8002 2
887 bfd_arch_h8500
, /* Hitachi H8/500 */
888 bfd_arch_sh
, /* Hitachi SH */
889 bfd_arch_alpha
, /* Dec Alpha */
893 typedef struct bfd_arch_info
896 int bits_per_address
;
898 enum bfd_architecture arch
;
901 CONST
char *printable_name
;
902 unsigned int section_align_power
;
903 /* true if this is the default machine for the architecture */
905 CONST
struct bfd_arch_info
* (*compatible
)
906 PARAMS ((CONST
struct bfd_arch_info
*a
,
907 CONST
struct bfd_arch_info
*b
));
909 boolean (*scan
) PARAMS ((CONST
struct bfd_arch_info
*, CONST
char *));
910 /* How to disassemble an instruction, producing a printable
911 representation on a specified stdio stream. This isn't
912 defined for most processors at present, because of the size
913 of the additional tables it would drag in, and because gdb
914 wants to use a different interface. */
915 unsigned int (*disassemble
) PARAMS ((bfd_vma addr
, CONST
char *data
,
918 struct bfd_arch_info
*next
;
919 } bfd_arch_info_type
;
921 bfd_printable_name
PARAMS ((bfd
*abfd
));
924 bfd_scan_arch
PARAMS ((CONST
char *));
926 CONST bfd_arch_info_type
*
927 bfd_arch_get_compatible
PARAMS ((
932 bfd_set_arch_info
PARAMS ((bfd
*, bfd_arch_info_type
*));
934 enum bfd_architecture
935 bfd_get_arch
PARAMS ((bfd
*abfd
));
938 bfd_get_mach
PARAMS ((bfd
*abfd
));
941 bfd_arch_bits_per_byte
PARAMS ((bfd
*abfd
));
944 bfd_arch_bits_per_address
PARAMS ((bfd
*abfd
));
947 bfd_get_arch_info
PARAMS ((bfd
*));
951 PARAMS ((enum bfd_architecture
956 bfd_printable_arch_mach
957 PARAMS ((enum bfd_architecture arch
, unsigned long machine
));
959 typedef enum bfd_reloc_status
961 /* No errors detected */
964 /* The relocation was performed, but there was an overflow. */
967 /* The address to relocate was not within the section supplied. */
968 bfd_reloc_outofrange
,
970 /* Used by special functions */
974 bfd_reloc_notsupported
,
976 /* Unsupported relocation size requested. */
979 /* The symbol to relocate against was undefined. */
982 /* The relocation was performed, but may not be ok - presently
983 generated only when linking i960 coff files with i960 b.out
987 bfd_reloc_status_type
;
990 typedef struct reloc_cache_entry
992 /* A pointer into the canonical table of pointers */
993 struct symbol_cache_entry
**sym_ptr_ptr
;
995 /* offset in section */
996 bfd_size_type address
;
998 /* addend for relocation value */
1001 /* Pointer to how to perform the required relocation */
1002 CONST
struct reloc_howto_struct
*howto
;
1005 enum complain_overflow
1007 /* Do not complain on overflow. */
1008 complain_overflow_dont
,
1010 /* Complain if the bitfield overflows, whether it is considered
1011 as signed or unsigned. */
1012 complain_overflow_bitfield
,
1014 /* Complain if the value overflows when considered as signed
1016 complain_overflow_signed
,
1018 /* Complain if the value overflows when considered as an
1020 complain_overflow_unsigned
1023 typedef CONST
struct reloc_howto_struct
1025 /* The type field has mainly a documetary use - the back end can
1026 to what it wants with it, though the normally the back end's
1027 external idea of what a reloc number would be would be stored
1028 in this field. For example, the a PC relative word relocation
1029 in a coff environment would have the type 023 - because that's
1030 what the outside world calls a R_PCRWORD reloc. */
1033 /* The value the final relocation is shifted right by. This drops
1034 unwanted data from the relocation. */
1035 unsigned int rightshift
;
1037 /* The size of the item to be relocated. This is *not* a
1038 power-of-two measure.
1042 3 : nothing done (unless special_function is nonzero)
1044 -2 : two bytes, result should be subtracted from the
1045 data instead of added
1046 There is currently no trivial way to extract a "number of
1047 bytes" from a howto pointer. */
1050 /* The number of bits in the item to be relocated. This is used
1051 when doing overflow checking. */
1052 unsigned int bitsize
;
1054 /* Notes that the relocation is relative to the location in the
1055 data section of the addend. The relocation function will
1056 subtract from the relocation value the address of the location
1058 boolean pc_relative
;
1060 /* The bit position of the reloc value in the destination.
1061 The relocated value is left shifted by this amount. */
1062 unsigned int bitpos
;
1064 /* What type of overflow error should be checked for when
1066 enum complain_overflow complain_on_overflow
;
1068 /* If this field is non null, then the supplied function is
1069 called rather than the normal function. This allows really
1070 strange relocation methods to be accomodated (e.g., i960 callj
1072 bfd_reloc_status_type (*special_function
)
1074 arelent
*reloc_entry
,
1075 struct symbol_cache_entry
*symbol
,
1077 asection
*input_section
,
1080 /* The textual name of the relocation type. */
1083 /* When performing a partial link, some formats must modify the
1084 relocations rather than the data - this flag signals this.*/
1085 boolean partial_inplace
;
1087 /* The src_mask is used to select what parts of the read in data
1088 are to be used in the relocation sum. E.g., if this was an 8 bit
1089 bit of data which we read and relocated, this would be
1090 0x000000ff. When we have relocs which have an addend, such as
1091 sun4 extended relocs, the value in the offset part of a
1092 relocating field is garbage so we never use it. In this case
1093 the mask would be 0x00000000. */
1096 /* The dst_mask is what parts of the instruction are replaced
1097 into the instruction. In most cases src_mask == dst_mask,
1098 except in the above special case, where dst_mask would be
1099 0x000000ff, and src_mask would be 0x00000000. */
1102 /* When some formats create PC relative instructions, they leave
1103 the value of the pc of the place being relocated in the offset
1104 slot of the instruction, so that a PC relative relocation can
1105 be made just by adding in an ordinary offset (e.g., sun3 a.out).
1106 Some formats leave the displacement part of an instruction
1107 empty (e.g., m88k bcs), this flag signals the fact.*/
1108 boolean pcrel_offset
;
1111 #define HOWTO(C, R,S,B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
1112 {(unsigned)C,R,S,B, P, BI, O,SF,NAME,INPLACE,MASKSRC,MASKDST,PC}
1113 #define NEWHOWTO( FUNCTION, NAME,SIZE,REL,IN) HOWTO(0,0,SIZE,0,REL,0,complain_overflow_dont,FUNCTION, NAME,false,0,0,IN)
1115 #define HOWTO_PREPARE(relocation, symbol) \
1117 if (symbol != (asymbol *)NULL) { \
1118 if (bfd_is_com_section (symbol->section)) { \
1122 relocation = symbol->value; \
1126 typedef unsigned char bfd_byte
;
1128 typedef struct relent_chain
{
1130 struct relent_chain
*next
;
1132 bfd_reloc_status_type
1134 bfd_perform_relocation
1135 PARAMS ((bfd
* abfd
,
1136 arelent
*reloc_entry
,
1138 asection
*input_section
,
1141 typedef enum bfd_reloc_code_real
1143 /* Basic absolute relocations */
1149 /* PC-relative relocations */
1152 BFD_RELOC_24_PCREL
, /* used by i960 */
1156 /* Linkage-table relative */
1157 BFD_RELOC_32_BASEREL
,
1158 BFD_RELOC_16_BASEREL
,
1159 BFD_RELOC_8_BASEREL
,
1161 /* The type of reloc used to build a contructor table - at the moment
1162 probably a 32 bit wide abs address, but the cpu can choose. */
1165 /* 8 bits wide, but used to form an address like 0xffnn */
1168 /* 32-bit pc-relative, shifted right 2 bits (i.e., 30-bit
1169 word displacement, e.g. for SPARC) */
1170 BFD_RELOC_32_PCREL_S2
,
1172 /* High 22 bits of 32-bit value, placed into lower 22 bits of
1173 target word; simple reloc. */
1178 /* Reloc types used for i960/b.out. */
1179 BFD_RELOC_I960_CALLJ
,
1181 /* now for the sparc/elf codes */
1182 BFD_RELOC_NONE
, /* actually used */
1183 BFD_RELOC_SPARC_WDISP22
,
1186 BFD_RELOC_SPARC_GOT10
,
1187 BFD_RELOC_SPARC_GOT13
,
1188 BFD_RELOC_SPARC_GOT22
,
1189 BFD_RELOC_SPARC_PC10
,
1190 BFD_RELOC_SPARC_PC22
,
1191 BFD_RELOC_SPARC_WPLT30
,
1192 BFD_RELOC_SPARC_COPY
,
1193 BFD_RELOC_SPARC_GLOB_DAT
,
1194 BFD_RELOC_SPARC_JMP_SLOT
,
1195 BFD_RELOC_SPARC_RELATIVE
,
1196 BFD_RELOC_SPARC_UA32
,
1198 /* these are a.out specific? */
1199 BFD_RELOC_SPARC_BASE13
,
1200 BFD_RELOC_SPARC_BASE22
,
1202 /* start-sanitize-v9 */
1205 #define BFD_RELOC_SPARC_64 BFD_RELOC_64
1206 BFD_RELOC_SPARC_OLO10
,
1207 BFD_RELOC_SPARC_HH22
,
1208 BFD_RELOC_SPARC_HM10
,
1209 BFD_RELOC_SPARC_LM22
,
1210 BFD_RELOC_SPARC_PC_HH22
,
1211 BFD_RELOC_SPARC_PC_HM10
,
1212 BFD_RELOC_SPARC_PC_LM22
,
1213 BFD_RELOC_SPARC_WDISP16
,
1214 BFD_RELOC_SPARC_WDISP19
,
1215 BFD_RELOC_SPARC_GLOB_JMP
,
1216 BFD_RELOC_SPARC_LO7
,
1217 /* end-sanitize-v9 */
1219 /* Bits 27..2 of the relocation address shifted right 2 bits;
1220 simple reloc otherwise. */
1223 /* signed 16-bit pc-relative, shifted right 2 bits (e.g. for MIPS) */
1224 BFD_RELOC_16_PCREL_S2
,
1226 /* High 16 bits of 32-bit value; simple reloc. */
1228 /* High 16 bits of 32-bit value but the low 16 bits will be sign
1229 extended and added to form the final result. If the low 16
1230 bits form a negative number, we need to add one to the high value
1231 to compensate for the borrow when the low bits are added. */
1236 /* 16 bit relocation relative to the global pointer. */
1237 BFD_RELOC_MIPS_GPREL
,
1239 /* These are, so far, specific to HPPA processors. I'm not sure that some
1240 don't duplicate other reloc types, such as BFD_RELOC_32 and _32_PCREL.
1241 Also, many more were in the list I got that don't fit in well in the
1242 model BFD uses, so I've omitted them for now. If we do make this reloc
1243 type get used for code that really does implement the funky reloc types,
1244 they'll have to be added to this list. */
1254 BFD_RELOC_HPPA_LS21
,
1255 BFD_RELOC_HPPA_RS11
,
1256 BFD_RELOC_HPPA_RS14
,
1257 BFD_RELOC_HPPA_RS17
,
1258 BFD_RELOC_HPPA_LD21
,
1259 BFD_RELOC_HPPA_RD11
,
1260 BFD_RELOC_HPPA_RD14
,
1261 BFD_RELOC_HPPA_RD17
,
1262 BFD_RELOC_HPPA_LR21
,
1263 BFD_RELOC_HPPA_RR14
,
1264 BFD_RELOC_HPPA_RR17
,
1266 BFD_RELOC_HPPA_GOTOFF_11
,
1267 BFD_RELOC_HPPA_GOTOFF_14
,
1268 BFD_RELOC_HPPA_GOTOFF_L21
,
1269 BFD_RELOC_HPPA_GOTOFF_R11
,
1270 BFD_RELOC_HPPA_GOTOFF_R14
,
1271 BFD_RELOC_HPPA_GOTOFF_LS21
,
1272 BFD_RELOC_HPPA_GOTOFF_RS11
,
1273 BFD_RELOC_HPPA_GOTOFF_RS14
,
1274 BFD_RELOC_HPPA_GOTOFF_LD21
,
1275 BFD_RELOC_HPPA_GOTOFF_RD11
,
1276 BFD_RELOC_HPPA_GOTOFF_RD14
,
1277 BFD_RELOC_HPPA_GOTOFF_LR21
,
1278 BFD_RELOC_HPPA_GOTOFF_RR14
,
1280 BFD_RELOC_HPPA_DLT_32
,
1281 BFD_RELOC_HPPA_DLT_11
,
1282 BFD_RELOC_HPPA_DLT_14
,
1283 BFD_RELOC_HPPA_DLT_L21
,
1284 BFD_RELOC_HPPA_DLT_R11
,
1285 BFD_RELOC_HPPA_DLT_R14
,
1287 BFD_RELOC_HPPA_ABS_CALL_11
,
1288 BFD_RELOC_HPPA_ABS_CALL_14
,
1289 BFD_RELOC_HPPA_ABS_CALL_17
,
1290 BFD_RELOC_HPPA_ABS_CALL_L21
,
1291 BFD_RELOC_HPPA_ABS_CALL_R11
,
1292 BFD_RELOC_HPPA_ABS_CALL_R14
,
1293 BFD_RELOC_HPPA_ABS_CALL_R17
,
1294 BFD_RELOC_HPPA_ABS_CALL_LS21
,
1295 BFD_RELOC_HPPA_ABS_CALL_RS11
,
1296 BFD_RELOC_HPPA_ABS_CALL_RS14
,
1297 BFD_RELOC_HPPA_ABS_CALL_RS17
,
1298 BFD_RELOC_HPPA_ABS_CALL_LD21
,
1299 BFD_RELOC_HPPA_ABS_CALL_RD11
,
1300 BFD_RELOC_HPPA_ABS_CALL_RD14
,
1301 BFD_RELOC_HPPA_ABS_CALL_RD17
,
1302 BFD_RELOC_HPPA_ABS_CALL_LR21
,
1303 BFD_RELOC_HPPA_ABS_CALL_RR14
,
1304 BFD_RELOC_HPPA_ABS_CALL_RR17
,
1306 BFD_RELOC_HPPA_PCREL_CALL_11
,
1307 BFD_RELOC_HPPA_PCREL_CALL_12
,
1308 BFD_RELOC_HPPA_PCREL_CALL_14
,
1309 BFD_RELOC_HPPA_PCREL_CALL_17
,
1310 BFD_RELOC_HPPA_PCREL_CALL_L21
,
1311 BFD_RELOC_HPPA_PCREL_CALL_R11
,
1312 BFD_RELOC_HPPA_PCREL_CALL_R14
,
1313 BFD_RELOC_HPPA_PCREL_CALL_R17
,
1314 BFD_RELOC_HPPA_PCREL_CALL_LS21
,
1315 BFD_RELOC_HPPA_PCREL_CALL_RS11
,
1316 BFD_RELOC_HPPA_PCREL_CALL_RS14
,
1317 BFD_RELOC_HPPA_PCREL_CALL_RS17
,
1318 BFD_RELOC_HPPA_PCREL_CALL_LD21
,
1319 BFD_RELOC_HPPA_PCREL_CALL_RD11
,
1320 BFD_RELOC_HPPA_PCREL_CALL_RD14
,
1321 BFD_RELOC_HPPA_PCREL_CALL_RD17
,
1322 BFD_RELOC_HPPA_PCREL_CALL_LR21
,
1323 BFD_RELOC_HPPA_PCREL_CALL_RR14
,
1324 BFD_RELOC_HPPA_PCREL_CALL_RR17
,
1326 BFD_RELOC_HPPA_PLABEL_32
,
1327 BFD_RELOC_HPPA_PLABEL_11
,
1328 BFD_RELOC_HPPA_PLABEL_14
,
1329 BFD_RELOC_HPPA_PLABEL_L21
,
1330 BFD_RELOC_HPPA_PLABEL_R11
,
1331 BFD_RELOC_HPPA_PLABEL_R14
,
1333 BFD_RELOC_HPPA_UNWIND_ENTRY
,
1334 BFD_RELOC_HPPA_UNWIND_ENTRIES
,
1336 /* i386/elf relocations */
1337 BFD_RELOC_386_GOT32
,
1338 BFD_RELOC_386_PLT32
,
1340 BFD_RELOC_386_GLOB_DAT
,
1341 BFD_RELOC_386_JUMP_SLOT
,
1342 BFD_RELOC_386_RELATIVE
,
1343 BFD_RELOC_386_GOTOFF
,
1344 BFD_RELOC_386_GOTPC
,
1346 /* this must be the highest numeric value */
1348 } bfd_reloc_code_real_type
;
1349 CONST
struct reloc_howto_struct
*
1351 bfd_reloc_type_lookup
PARAMS ((bfd
*abfd
, bfd_reloc_code_real_type code
));
1354 typedef struct symbol_cache_entry
1356 /* A pointer to the BFD which owns the symbol. This information
1357 is necessary so that a back end can work out what additional
1358 information (invisible to the application writer) is carried
1361 This field is *almost* redundant, since you can use section->owner
1362 instead, except that some symbols point to the global sections
1363 bfd_{abs,com,und}_section. This could be fixed by making
1364 these globals be per-bfd (or per-target-flavor). FIXME. */
1366 struct _bfd
*the_bfd
; /* Use bfd_asymbol_bfd(sym) to access this field. */
1368 /* The text of the symbol. The name is left alone, and not copied - the
1369 application may not alter it. */
1372 /* The value of the symbol. This really should be a union of a
1373 numeric value with a pointer, since some flags indicate that
1374 a pointer to another symbol is stored here. */
1377 /* Attributes of a symbol: */
1379 #define BSF_NO_FLAGS 0x00
1381 /* The symbol has local scope; <<static>> in <<C>>. The value
1382 is the offset into the section of the data. */
1383 #define BSF_LOCAL 0x01
1385 /* The symbol has global scope; initialized data in <<C>>. The
1386 value is the offset into the section of the data. */
1387 #define BSF_GLOBAL 0x02
1389 /* The symbol has global scope, and is exported. The value is
1390 the offset into the section of the data. */
1391 #define BSF_EXPORT BSF_GLOBAL /* no real difference */
1393 /* A normal C symbol would be one of:
1394 <<BSF_LOCAL>>, <<BSF_FORT_COMM>>, <<BSF_UNDEFINED>> or
1397 /* The symbol is a debugging record. The value has an arbitary
1399 #define BSF_DEBUGGING 0x08
1401 /* The symbol denotes a function entry point. Used in ELF,
1402 perhaps others someday. */
1403 #define BSF_FUNCTION 0x10
1405 /* Used by the linker. */
1406 #define BSF_KEEP 0x20
1407 #define BSF_KEEP_G 0x40
1409 /* A weak global symbol, overridable without warnings by
1410 a regular global symbol of the same name. */
1411 #define BSF_WEAK 0x80
1413 /* This symbol was created to point to a section, e.g. ELF's
1414 STT_SECTION symbols. */
1415 #define BSF_SECTION_SYM 0x100
1417 /* The symbol used to be a common symbol, but now it is
1419 #define BSF_OLD_COMMON 0x200
1421 /* The default value for common data. */
1422 #define BFD_FORT_COMM_DEFAULT_VALUE 0
1424 /* In some files the type of a symbol sometimes alters its
1425 location in an output file - ie in coff a <<ISFCN>> symbol
1426 which is also <<C_EXT>> symbol appears where it was
1427 declared and not at the end of a section. This bit is set
1428 by the target BFD part to convey this information. */
1430 #define BSF_NOT_AT_END 0x400
1432 /* Signal that the symbol is the label of constructor section. */
1433 #define BSF_CONSTRUCTOR 0x800
1435 /* Signal that the symbol is a warning symbol. If the symbol
1436 is a warning symbol, then the value field (I know this is
1437 tacky) will point to the asymbol which when referenced will
1438 cause the warning. */
1439 #define BSF_WARNING 0x1000
1441 /* Signal that the symbol is indirect. The value of the symbol
1442 is a pointer to an undefined asymbol which contains the
1443 name to use instead. */
1444 #define BSF_INDIRECT 0x2000
1446 /* BSF_FILE marks symbols that contain a file name. This is used
1447 for ELF STT_FILE symbols. */
1448 #define BSF_FILE 0x4000
1452 /* A pointer to the section to which this symbol is
1453 relative. This will always be non NULL, there are special
1454 sections for undefined and absolute symbols */
1455 struct sec
*section
;
1457 /* Back end special data. This is being phased out in favour
1458 of making this a union. */
1462 #define get_symtab_upper_bound(abfd) \
1463 BFD_SEND (abfd, _get_symtab_upper_bound, (abfd))
1464 #define bfd_canonicalize_symtab(abfd, location) \
1465 BFD_SEND (abfd, _bfd_canonicalize_symtab,\
1468 bfd_set_symtab
PARAMS ((bfd
*, asymbol
**, unsigned int ));
1471 bfd_print_symbol_vandf
PARAMS ((PTR file
, asymbol
*symbol
));
1473 #define bfd_make_empty_symbol(abfd) \
1474 BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd))
1475 #define bfd_make_debug_symbol(abfd,ptr,size) \
1476 BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size))
1478 bfd_decode_symclass
PARAMS ((asymbol
*symbol
));
1481 bfd_symbol_info
PARAMS ((asymbol
*symbol
, symbol_info
*ret
));
1485 /* The filename the application opened the BFD with. */
1486 CONST
char *filename
;
1488 /* A pointer to the target jump table. */
1489 struct bfd_target
*xvec
;
1491 /* To avoid dragging too many header files into every file that
1492 includes `<<bfd.h>>', IOSTREAM has been declared as a "char
1493 *", and MTIME as a "long". Their correct types, to which they
1494 are cast when used, are "FILE *" and "time_t". The iostream
1495 is the result of an fopen on the filename. */
1498 /* Is the file being cached */
1502 /* Marks whether there was a default target specified when the
1503 BFD was opened. This is used to select what matching algorithm
1504 to use to chose the back end. */
1506 boolean target_defaulted
;
1508 /* The caching routines use these to maintain a
1509 least-recently-used list of BFDs */
1511 struct _bfd
*lru_prev
, *lru_next
;
1513 /* When a file is closed by the caching routines, BFD retains
1514 state information on the file here:
1521 boolean opened_once
;
1523 /* Set if we have a locally maintained mtime value, rather than
1524 getting it from the file each time: */
1528 /* File modified time, if mtime_set is true: */
1532 /* Reserved for an unimplemented file locking extension.*/
1536 /* The format which belongs to the BFD.*/
1540 /* The direction the BFD was opened with*/
1542 enum bfd_direction
{no_direction
= 0,
1544 write_direction
= 2,
1545 both_direction
= 3} direction
;
1547 /* Format_specific flags*/
1551 /* Currently my_archive is tested before adding origin to
1552 anything. I believe that this can become always an add of
1553 origin, with origin set to 0 for non archive files. */
1557 /* Remember when output has begun, to stop strange things
1559 boolean output_has_begun
;
1561 /* Pointer to linked list of sections*/
1562 struct sec
*sections
;
1564 /* The number of sections */
1565 unsigned int section_count
;
1567 /* Stuff only useful for object files:
1568 The start address. */
1569 bfd_vma start_address
;
1571 /* Used for input and output*/
1572 unsigned int symcount
;
1574 /* Symbol table for output BFD*/
1575 struct symbol_cache_entry
**outsymbols
;
1577 /* Pointer to structure which contains architecture information*/
1578 struct bfd_arch_info
*arch_info
;
1580 /* Stuff only useful for archives:*/
1582 struct _bfd
*my_archive
;
1584 struct _bfd
*archive_head
;
1587 /* Used by the back end to hold private data. */
1591 struct aout_data_struct
*aout_data
;
1592 struct artdata
*aout_ar_data
;
1593 struct _oasys_data
*oasys_obj_data
;
1594 struct _oasys_ar_data
*oasys_ar_data
;
1595 struct coff_tdata
*coff_obj_data
;
1596 struct ecoff_tdata
*ecoff_obj_data
;
1597 struct ieee_data_struct
*ieee_data
;
1598 struct ieee_ar_data_struct
*ieee_ar_data
;
1599 struct srec_data_struct
*srec_data
;
1600 struct tekhex_data_struct
*tekhex_data
;
1601 struct elf_obj_tdata
*elf_obj_data
;
1602 struct nlm_obj_tdata
*nlm_obj_data
;
1603 struct bout_data_struct
*bout_data
;
1604 struct sun_core_struct
*sun_core_data
;
1605 struct trad_core_struct
*trad_core_data
;
1606 struct som_data_struct
*som_data
;
1607 struct hpux_core_struct
*hpux_core_data
;
1608 struct sgi_core_struct
*sgi_core_data
;
1609 struct lynx_core_struct
*lynx_core_data
;
1610 struct osf_core_struct
*osf_core_data
;
1614 /* Used by the application to hold private data*/
1617 /* Where all the allocated stuff under this BFD goes */
1618 struct obstack memory
;
1620 /* Is this really needed in addition to usrdata? */
1621 asymbol
**ld_symbols
;
1625 bfd_get_reloc_upper_bound
PARAMS ((bfd
*abfd
, asection
*sect
));
1628 bfd_canonicalize_reloc
1635 bfd_set_file_flags
PARAMS ((bfd
*abfd
, flagword flags
));
1639 PARAMS ((bfd
*abfd
, asection
*sec
, arelent
**rel
, unsigned int count
)
1644 bfd_set_start_address
PARAMS ((bfd
*, bfd_vma
));
1647 bfd_get_mtime
PARAMS ((bfd
*));
1650 bfd_get_size
PARAMS ((bfd
*));
1653 bfd_get_gp_size
PARAMS ((bfd
*));
1656 bfd_set_gp_size
PARAMS ((bfd
*, int));
1659 bfd_scan_vma
PARAMS ((CONST
char *string
, CONST
char **end
, int base
));
1661 #define bfd_sizeof_headers(abfd, reloc) \
1662 BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc))
1664 #define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
1665 BFD_SEND (abfd, _bfd_find_nearest_line, (abfd, sec, syms, off, file, func, line))
1667 /* Do these three do anything useful at all, for any back end? */
1668 #define bfd_debug_info_start(abfd) \
1669 BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
1671 #define bfd_debug_info_end(abfd) \
1672 BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
1674 #define bfd_debug_info_accumulate(abfd, section) \
1675 BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
1678 #define bfd_stat_arch_elt(abfd, stat) \
1679 BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
1681 #define bfd_set_arch_mach(abfd, arch, mach)\
1682 BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
1684 #define bfd_get_relocated_section_contents(abfd, seclet, data, relocateable) \
1685 BFD_SEND (abfd, _bfd_get_relocated_section_contents, (abfd, seclet, data, relocateable))
1687 #define bfd_relax_section(abfd, section, symbols) \
1688 BFD_SEND (abfd, _bfd_relax_section, (abfd, section, symbols))
1690 #define bfd_seclet_link(abfd, data, relocateable) \
1691 BFD_SEND (abfd, _bfd_seclet_link, (abfd, data, relocateable))
1693 bfd_get_next_mapent
PARAMS ((bfd
*, symindex previous
, carsym
** sym
));
1696 bfd_set_archive_head
PARAMS ((bfd
*output
, bfd
*new_head
));
1699 bfd_get_elt_at_index
PARAMS ((bfd
* archive
, int index
));
1702 bfd_openr_next_archived_file
PARAMS ((bfd
*archive
, bfd
*previous
));
1705 bfd_core_file_failing_command
PARAMS ((bfd
*));
1708 bfd_core_file_failing_signal
PARAMS ((bfd
*));
1711 core_file_matches_executable_p
1712 PARAMS ((bfd
*core_bfd
, bfd
*exec_bfd
));
1714 #define BFD_SEND(bfd, message, arglist) \
1715 ((*((bfd)->xvec->message)) arglist)
1716 #define BFD_SEND_FMT(bfd, message, arglist) \
1717 (((bfd)->xvec->message[(int)((bfd)->format)]) arglist)
1719 bfd_target_unknown_flavour
,
1720 bfd_target_aout_flavour
,
1721 bfd_target_coff_flavour
,
1722 bfd_target_ecoff_flavour
,
1723 bfd_target_elf_flavour
,
1724 bfd_target_ieee_flavour
,
1725 bfd_target_nlm_flavour
,
1726 bfd_target_oasys_flavour
,
1727 bfd_target_tekhex_flavour
,
1728 bfd_target_srec_flavour
,
1729 bfd_target_som_flavour
};
1730 typedef struct bfd_target
1733 enum bfd_flavour flavour
;
1734 boolean byteorder_big_p
;
1735 boolean header_byteorder_big_p
;
1736 flagword object_flags
;
1737 flagword section_flags
;
1738 char symbol_leading_char
;
1740 unsigned short ar_max_namelen
;
1741 unsigned int align_power_min
;
1742 bfd_vma (*bfd_getx64
) PARAMS ((bfd_byte
*));
1743 bfd_signed_vma (*bfd_getx_signed_64
) PARAMS ((bfd_byte
*));
1744 void (*bfd_putx64
) PARAMS ((bfd_vma
, bfd_byte
*));
1745 bfd_vma (*bfd_getx32
) PARAMS ((bfd_byte
*));
1746 bfd_signed_vma (*bfd_getx_signed_32
) PARAMS ((bfd_byte
*));
1747 void (*bfd_putx32
) PARAMS ((bfd_vma
, bfd_byte
*));
1748 bfd_vma (*bfd_getx16
) PARAMS ((bfd_byte
*));
1749 bfd_signed_vma (*bfd_getx_signed_16
) PARAMS ((bfd_byte
*));
1750 void (*bfd_putx16
) PARAMS ((bfd_vma
, bfd_byte
*));
1751 bfd_vma (*bfd_h_getx64
) PARAMS ((bfd_byte
*));
1752 bfd_signed_vma (*bfd_h_getx_signed_64
) PARAMS ((bfd_byte
*));
1753 void (*bfd_h_putx64
) PARAMS ((bfd_vma
, bfd_byte
*));
1754 bfd_vma (*bfd_h_getx32
) PARAMS ((bfd_byte
*));
1755 bfd_signed_vma (*bfd_h_getx_signed_32
) PARAMS ((bfd_byte
*));
1756 void (*bfd_h_putx32
) PARAMS ((bfd_vma
, bfd_byte
*));
1757 bfd_vma (*bfd_h_getx16
) PARAMS ((bfd_byte
*));
1758 bfd_signed_vma (*bfd_h_getx_signed_16
) PARAMS ((bfd_byte
*));
1759 void (*bfd_h_putx16
) PARAMS ((bfd_vma
, bfd_byte
*));
1760 struct bfd_target
* (*_bfd_check_format
[bfd_type_end
]) PARAMS ((bfd
*));
1761 boolean (*_bfd_set_format
[bfd_type_end
]) PARAMS ((bfd
*));
1762 boolean (*_bfd_write_contents
[bfd_type_end
]) PARAMS ((bfd
*));
1763 char * (*_core_file_failing_command
) PARAMS ((bfd
*));
1764 int (*_core_file_failing_signal
) PARAMS ((bfd
*));
1765 boolean (*_core_file_matches_executable_p
) PARAMS ((bfd
*, bfd
*));
1766 boolean (*_bfd_slurp_armap
) PARAMS ((bfd
*));
1767 boolean (*_bfd_slurp_extended_name_table
) PARAMS ((bfd
*));
1768 void (*_bfd_truncate_arname
) PARAMS ((bfd
*, CONST
char *, char *));
1769 boolean (*write_armap
) PARAMS ((bfd
*arch
,
1770 unsigned int elength
,
1772 unsigned int orl_count
,
1774 boolean (*_close_and_cleanup
) PARAMS ((bfd
*));
1775 boolean (*_bfd_set_section_contents
) PARAMS ((bfd
*, sec_ptr
, PTR
,
1776 file_ptr
, bfd_size_type
));
1777 boolean (*_bfd_get_section_contents
) PARAMS ((bfd
*, sec_ptr
, PTR
,
1778 file_ptr
, bfd_size_type
));
1779 boolean (*_new_section_hook
) PARAMS ((bfd
*, sec_ptr
));
1780 unsigned int (*_get_symtab_upper_bound
) PARAMS ((bfd
*));
1781 unsigned int (*_bfd_canonicalize_symtab
) PARAMS ((bfd
*,
1782 struct symbol_cache_entry
**));
1783 unsigned int (*_get_reloc_upper_bound
) PARAMS ((bfd
*, sec_ptr
));
1784 unsigned int (*_bfd_canonicalize_reloc
) PARAMS ((bfd
*, sec_ptr
, arelent
**,
1785 struct symbol_cache_entry
**));
1786 struct symbol_cache_entry
*
1787 (*_bfd_make_empty_symbol
) PARAMS ((bfd
*));
1788 void (*_bfd_print_symbol
) PARAMS ((bfd
*, PTR
,
1789 struct symbol_cache_entry
*,
1790 bfd_print_symbol_type
));
1791 #define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e))
1792 void (*_bfd_get_symbol_info
) PARAMS ((bfd
*,
1793 struct symbol_cache_entry
*,
1795 #define bfd_get_symbol_info(b,p,e) BFD_SEND(b, _bfd_get_symbol_info, (b,p,e))
1796 alent
* (*_get_lineno
) PARAMS ((bfd
*, struct symbol_cache_entry
*));
1798 boolean (*_bfd_set_arch_mach
) PARAMS ((bfd
*, enum bfd_architecture
,
1801 bfd
* (*openr_next_archived_file
) PARAMS ((bfd
*arch
, bfd
*prev
));
1803 boolean (*_bfd_find_nearest_line
) PARAMS ((bfd
*abfd
,
1804 struct sec
*section
, struct symbol_cache_entry
**symbols
,
1805 bfd_vma offset
, CONST
char **file
, CONST
char **func
,
1806 unsigned int *line
));
1808 int (*_bfd_stat_arch_elt
) PARAMS ((bfd
*, struct stat
*));
1810 int (*_bfd_sizeof_headers
) PARAMS ((bfd
*, boolean
));
1812 void (*_bfd_debug_info_start
) PARAMS ((bfd
*));
1813 void (*_bfd_debug_info_end
) PARAMS ((bfd
*));
1814 void (*_bfd_debug_info_accumulate
) PARAMS ((bfd
*, struct sec
*));
1816 bfd_byte
* (*_bfd_get_relocated_section_contents
) PARAMS ((bfd
*,
1817 struct bfd_seclet
*, bfd_byte
*data
,
1818 boolean relocateable
));
1820 boolean (*_bfd_relax_section
) PARAMS ((bfd
*, struct sec
*,
1821 struct symbol_cache_entry
**));
1823 boolean (*_bfd_seclet_link
) PARAMS ((bfd
*, PTR data
,
1824 boolean relocateable
));
1825 /* See documentation on reloc types. */
1826 CONST
struct reloc_howto_struct
*
1827 (*reloc_type_lookup
) PARAMS ((bfd
*abfd
,
1828 bfd_reloc_code_real_type code
));
1830 /* Back-door to allow format-aware applications to create debug symbols
1831 while using BFD for everything else. Currently used by the assembler
1832 when creating COFF files. */
1833 asymbol
* (*_bfd_make_debug_symbol
) PARAMS ((
1836 unsigned long size
));
1840 bfd_find_target
PARAMS ((CONST
char *, bfd
*));
1843 bfd_target_list
PARAMS ((void));
1846 bfd_check_format
PARAMS ((bfd
*abfd
, bfd_format format
));
1849 bfd_set_format
PARAMS ((bfd
*, bfd_format
));
1852 bfd_format_string
PARAMS ((bfd_format
));