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 /* Object file flag values */
164 #define NO_FLAGS 0x00
165 #define HAS_RELOC 0x01
167 #define HAS_LINENO 0x04
168 #define HAS_DEBUG 0x08
169 #define HAS_SYMS 0x10
170 #define HAS_LOCALS 0x20
173 #define D_PAGED 0x100
174 #define BFD_IS_RELAXABLE 0x200
176 /* symbols and relocation */
178 typedef unsigned long symindex
;
180 #define BFD_NO_MORE_SYMBOLS ((symindex) ~0)
182 typedef enum bfd_symclass
{
183 bfd_symclass_unknown
= 0,
184 bfd_symclass_fcommon
, /* fortran common symbols */
185 bfd_symclass_global
, /* global symbol, what a surprise */
186 bfd_symclass_debugger
, /* some debugger symbol */
187 bfd_symclass_undefined
/* none known */
191 /* general purpose part of a symbol;
192 target specific parts will be found in libcoff.h, liba.out.h etc */
195 #define bfd_get_section(x) ((x)->section)
196 #define bfd_get_output_section(x) ((x)->section->output_section)
197 #define bfd_set_section(x,y) ((x)->section) = (y)
198 #define bfd_asymbol_base(x) ((x)->section->vma)
199 #define bfd_asymbol_value(x) (bfd_asymbol_base(x) + (x)->value)
200 #define bfd_asymbol_name(x) ((x)->name)
201 /*Perhaps future: #define bfd_asymbol_bfd(x) ((x)->section->owner)*/
202 #define bfd_asymbol_bfd(x) ((x)->the_bfd)
203 #define bfd_asymbol_flavour(x) (bfd_asymbol_bfd(x)->xvec->flavour)
205 /* This is a type pun with struct ranlib on purpose! */
206 typedef struct carsym
{
208 file_ptr file_offset
; /* look here to find the file */
209 } carsym
; /* to make these you call a carsymogen */
212 /* Used in generating armaps. Perhaps just a forward definition would do? */
213 struct orl
{ /* output ranlib */
214 char **name
; /* symbol name */
215 file_ptr pos
; /* bfd* or file position */
216 int namidx
; /* index into string table */
221 /* Linenumber stuff */
222 typedef struct lineno_cache_entry
{
223 unsigned int line_number
; /* Linenumber from start of function*/
225 struct symbol_cache_entry
*sym
; /* Function name */
226 unsigned long offset
; /* Offset into section */
230 /* object and core file sections */
233 #define align_power(addr, align) \
234 ( ((addr) + ((1<<(align))-1)) & (-1 << (align)))
236 typedef struct sec
*sec_ptr
;
238 #define bfd_get_section_name(bfd, ptr) ((ptr)->name + 0)
239 #define bfd_get_section_vma(bfd, ptr) ((ptr)->vma + 0)
240 #define bfd_get_section_alignment(bfd, ptr) ((ptr)->alignment_power + 0)
241 #define bfd_section_name(bfd, ptr) ((ptr)->name)
242 #define bfd_section_size(bfd, ptr) (bfd_get_section_size_before_reloc(ptr))
243 #define bfd_section_vma(bfd, ptr) ((ptr)->vma)
244 #define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power)
245 #define bfd_get_section_flags(bfd, ptr) ((ptr)->flags + 0)
246 #define bfd_get_section_userdata(bfd, ptr) ((ptr)->userdata)
248 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0)
250 #define bfd_set_section_vma(bfd, ptr, val) (((ptr)->vma = (ptr)->lma= (val)), ((ptr)->user_set_vma = true), true)
251 #define bfd_set_section_alignment(bfd, ptr, val) (((ptr)->alignment_power = (val)),true)
252 #define bfd_set_section_userdata(bfd, ptr, val) (((ptr)->userdata = (val)),true)
254 typedef struct stat stat_type
;
256 /** Error handling */
258 typedef enum bfd_error
{
259 no_error
= 0, system_call_error
, invalid_target
,
260 wrong_format
, invalid_operation
, no_memory
,
261 no_symbols
, no_relocation_info
,
262 no_more_archived_files
, malformed_archive
,
263 symbol_not_found
, file_not_recognized
,
264 file_ambiguously_recognized
, no_contents
,
265 bfd_error_nonrepresentable_section
,
266 no_debug_section
, bad_value
,
268 /* An input file is shorter than expected. */
271 invalid_error_code
} bfd_ec
;
273 extern bfd_ec bfd_error
;
274 struct reloc_cache_entry
;
278 typedef struct bfd_error_vector
{
279 void (* nonrepresentable_section
) PARAMS ((CONST bfd
*CONST abfd
,
280 CONST
char *CONST name
));
281 void (* undefined_symbol
) PARAMS ((CONST
struct reloc_cache_entry
*rel
,
282 CONST
struct bfd_seclet
*sec
));
283 void (* reloc_value_truncated
) PARAMS ((CONST
struct
284 reloc_cache_entry
*rel
,
285 struct bfd_seclet
*sec
));
287 void (* reloc_dangerous
) PARAMS ((CONST
struct reloc_cache_entry
*rel
,
288 CONST
struct bfd_seclet
*sec
));
290 } bfd_error_vector_type
;
292 CONST
char *bfd_errmsg
PARAMS ((bfd_ec error_tag
));
293 void bfd_perror
PARAMS ((CONST
char *message
));
296 typedef enum bfd_print_symbol
298 bfd_print_symbol_name
,
299 bfd_print_symbol_more
,
301 } bfd_print_symbol_type
;
304 /* Information about a symbol that nm needs. */
306 typedef struct _symbol_info
310 CONST
char *name
; /* Symbol name. */
311 char stab_other
; /* Unused. */
312 short stab_desc
; /* Info for N_TYPE. */
313 CONST
char *stab_name
;
316 /* The code that implements targets can initialize a jump table with this
317 macro. It must name all its routines the same way (a prefix plus
318 the standard routine suffix), or it must #define the routines that
319 are not so named, before calling JUMP_TABLE in the initializer. */
321 /* Semi-portable string concatenation in cpp.
322 The CAT4 hack is to avoid a problem with some strict ANSI C preprocessors.
323 The problem is, "32_" is not a valid preprocessing token, and we don't
324 want extra underscores (e.g., "nlm_32_"). The XCAT2 macro will cause the
325 inner CAT macros to be evaluated first, producing still-valid pp-tokens.
326 Then the final concatenation can be done. (Sigh.) */
329 #define CAT(a,b) a##b
330 #define CAT3(a,b,c) a##b##c
331 #define CAT4(a,b,c,d) a##b##c##d
334 #define CAT(a,b) a##b
335 #define CAT3(a,b,c) a##b##c
336 #define XCAT2(a,b) CAT(a,b)
337 #define CAT4(a,b,c,d) XCAT2(CAT(a,b),CAT(c,d))
339 #define CAT(a,b) a/**/b
340 #define CAT3(a,b,c) a/**/b/**/c
341 #define CAT4(a,b,c,d) a/**/b/**/c/**/d
346 #define JUMP_TABLE(NAME)\
347 CAT(NAME,_core_file_failing_command),\
348 CAT(NAME,_core_file_failing_signal),\
349 CAT(NAME,_core_file_matches_executable_p),\
350 CAT(NAME,_slurp_armap),\
351 CAT(NAME,_slurp_extended_name_table),\
352 CAT(NAME,_truncate_arname),\
353 CAT(NAME,_write_armap),\
354 CAT(NAME,_close_and_cleanup),\
355 CAT(NAME,_set_section_contents),\
356 CAT(NAME,_get_section_contents),\
357 CAT(NAME,_new_section_hook),\
358 CAT(NAME,_get_symtab_upper_bound),\
359 CAT(NAME,_get_symtab),\
360 CAT(NAME,_get_reloc_upper_bound),\
361 CAT(NAME,_canonicalize_reloc),\
362 CAT(NAME,_make_empty_symbol),\
363 CAT(NAME,_print_symbol),\
364 CAT(NAME,_get_symbol_info),\
365 CAT(NAME,_get_lineno),\
366 CAT(NAME,_set_arch_mach),\
367 CAT(NAME,_openr_next_archived_file),\
368 CAT(NAME,_find_nearest_line),\
369 CAT(NAME,_generic_stat_arch_elt),\
370 CAT(NAME,_sizeof_headers),\
371 CAT(NAME,_bfd_debug_info_start),\
372 CAT(NAME,_bfd_debug_info_end),\
373 CAT(NAME,_bfd_debug_info_accumulate),\
374 CAT(NAME,_bfd_get_relocated_section_contents),\
375 CAT(NAME,_bfd_relax_section),\
376 CAT(NAME,_bfd_seclet_link),\
377 CAT(NAME,_bfd_reloc_type_lookup),\
378 CAT(NAME,_bfd_make_debug_symbol)
380 #define COFF_SWAP_TABLE (PTR) &bfd_coff_std_swap_table
383 /* User program access to BFD facilities */
385 /* Cast from const char * to char * so that caller can assign to
386 a char * without a warning. */
387 #define bfd_get_filename(abfd) ((char *) (abfd)->filename)
388 #define bfd_get_format(abfd) ((abfd)->format)
389 #define bfd_get_target(abfd) ((abfd)->xvec->name)
390 #define bfd_get_file_flags(abfd) ((abfd)->flags)
391 #define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
392 #define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
393 #define bfd_my_archive(abfd) ((abfd)->my_archive)
394 #define bfd_has_map(abfd) ((abfd)->has_armap)
396 #define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
397 #define bfd_usrdata(abfd) ((abfd)->usrdata)
399 #define bfd_get_start_address(abfd) ((abfd)->start_address)
400 #define bfd_get_symcount(abfd) ((abfd)->symcount)
401 #define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
402 #define bfd_count_sections(abfd) ((abfd)->section_count)
404 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
406 /* Byte swapping routines. */
408 bfd_vma bfd_getb64
PARAMS ((unsigned char *));
409 bfd_vma bfd_getl64
PARAMS ((unsigned char *));
410 bfd_signed_vma bfd_getb_signed_64
PARAMS ((unsigned char *));
411 bfd_signed_vma bfd_getl_signed_64
PARAMS ((unsigned char *));
412 bfd_vma bfd_getb32
PARAMS ((unsigned char *));
413 bfd_vma bfd_getl32
PARAMS ((unsigned char *));
414 bfd_signed_vma bfd_getb_signed_32
PARAMS ((unsigned char *));
415 bfd_signed_vma bfd_getl_signed_32
PARAMS ((unsigned char *));
416 bfd_vma bfd_getb16
PARAMS ((unsigned char *));
417 bfd_vma bfd_getl16
PARAMS ((unsigned char *));
418 bfd_signed_vma bfd_getb_signed_16
PARAMS ((unsigned char *));
419 bfd_signed_vma bfd_getl_signed_16
PARAMS ((unsigned char *));
420 void bfd_putb64
PARAMS ((bfd_vma
, unsigned char *));
421 void bfd_putl64
PARAMS ((bfd_vma
, unsigned char *));
422 void bfd_putb32
PARAMS ((bfd_vma
, unsigned char *));
423 void bfd_putl32
PARAMS ((bfd_vma
, unsigned char *));
424 void bfd_putb16
PARAMS ((bfd_vma
, unsigned char *));
425 void bfd_putl16
PARAMS ((bfd_vma
, unsigned char *));
427 /* And more from the source. */
429 bfd_init
PARAMS ((void));
432 bfd_openr
PARAMS ((CONST
char *filename
, CONST
char*target
));
435 bfd_fdopenr
PARAMS ((CONST
char *filename
, CONST
char *target
, int fd
));
438 bfd_openw
PARAMS ((CONST
char *filename
, CONST
char *target
));
441 bfd_close
PARAMS ((bfd
*));
444 bfd_close_all_done
PARAMS ((bfd
*));
447 bfd_alloc_size
PARAMS ((bfd
*abfd
));
450 bfd_create
PARAMS ((CONST
char *filename
, bfd
*templ
));
453 /* Byte swapping macros for user section data. */
455 #define bfd_put_8(abfd, val, ptr) \
456 (*((unsigned char *)(ptr)) = (unsigned char)val)
457 #define bfd_put_signed_8 \
459 #define bfd_get_8(abfd, ptr) \
460 (*(unsigned char *)(ptr))
461 #define bfd_get_signed_8(abfd, ptr) \
462 ((*(unsigned char *)(ptr) ^ 0x80) - 0x80)
464 #define bfd_put_16(abfd, val, ptr) \
465 BFD_SEND(abfd, bfd_putx16, ((val),(ptr)))
466 #define bfd_put_signed_16 \
468 #define bfd_get_16(abfd, ptr) \
469 BFD_SEND(abfd, bfd_getx16, (ptr))
470 #define bfd_get_signed_16(abfd, ptr) \
471 BFD_SEND (abfd, bfd_getx_signed_16, (ptr))
473 #define bfd_put_32(abfd, val, ptr) \
474 BFD_SEND(abfd, bfd_putx32, ((val),(ptr)))
475 #define bfd_put_signed_32 \
477 #define bfd_get_32(abfd, ptr) \
478 BFD_SEND(abfd, bfd_getx32, (ptr))
479 #define bfd_get_signed_32(abfd, ptr) \
480 BFD_SEND(abfd, bfd_getx_signed_32, (ptr))
482 #define bfd_put_64(abfd, val, ptr) \
483 BFD_SEND(abfd, bfd_putx64, ((val), (ptr)))
484 #define bfd_put_signed_64 \
486 #define bfd_get_64(abfd, ptr) \
487 BFD_SEND(abfd, bfd_getx64, (ptr))
488 #define bfd_get_signed_64(abfd, ptr) \
489 BFD_SEND(abfd, bfd_getx_signed_64, (ptr))
492 /* Byte swapping macros for file header data. */
494 #define bfd_h_put_8(abfd, val, ptr) \
495 bfd_put_8 (abfd, val, ptr)
496 #define bfd_h_put_signed_8(abfd, val, ptr) \
497 bfd_put_8 (abfd, val, ptr)
498 #define bfd_h_get_8(abfd, ptr) \
499 bfd_get_8 (abfd, ptr)
500 #define bfd_h_get_signed_8(abfd, ptr) \
501 bfd_get_signed_8 (abfd, ptr)
503 #define bfd_h_put_16(abfd, val, ptr) \
504 BFD_SEND(abfd, bfd_h_putx16,(val,ptr))
505 #define bfd_h_put_signed_16 \
507 #define bfd_h_get_16(abfd, ptr) \
508 BFD_SEND(abfd, bfd_h_getx16,(ptr))
509 #define bfd_h_get_signed_16(abfd, ptr) \
510 BFD_SEND(abfd, bfd_h_getx_signed_16, (ptr))
512 #define bfd_h_put_32(abfd, val, ptr) \
513 BFD_SEND(abfd, bfd_h_putx32,(val,ptr))
514 #define bfd_h_put_signed_32 \
516 #define bfd_h_get_32(abfd, ptr) \
517 BFD_SEND(abfd, bfd_h_getx32,(ptr))
518 #define bfd_h_get_signed_32(abfd, ptr) \
519 BFD_SEND(abfd, bfd_h_getx_signed_32, (ptr))
521 #define bfd_h_put_64(abfd, val, ptr) \
522 BFD_SEND(abfd, bfd_h_putx64,(val, ptr))
523 #define bfd_h_put_signed_64 \
525 #define bfd_h_get_64(abfd, ptr) \
526 BFD_SEND(abfd, bfd_h_getx64,(ptr))
527 #define bfd_h_get_signed_64(abfd, ptr) \
528 BFD_SEND(abfd, bfd_h_getx_signed_64, (ptr))
532 /* The name of the section, the name isn't a copy, the pointer is
533 the same as that passed to bfd_make_section. */
537 /* Which section is it 0.nth */
541 /* The next section in the list belonging to the BFD, or NULL. */
545 /* The field flags contains attributes of the section. Some of
546 flags are read in from the object file, and some are
547 synthesized from other information. */
551 #define SEC_NO_FLAGS 0x000
553 /* Tells the OS to allocate space for this section when loaded.
554 This would clear for a section containing debug information
556 #define SEC_ALLOC 0x001
558 /* Tells the OS to load the section from the file when loading.
559 This would be clear for a .bss section */
560 #define SEC_LOAD 0x002
562 /* The section contains data still to be relocated, so there will
563 be some relocation information too. */
564 #define SEC_RELOC 0x004
566 #if 0 /* Obsolete ? */
567 #define SEC_BALIGN 0x008
570 /* A signal to the OS that the section contains read only
572 #define SEC_READONLY 0x010
574 /* The section contains code only. */
575 #define SEC_CODE 0x020
577 /* The section contains data only. */
578 #define SEC_DATA 0x040
580 /* The section will reside in ROM. */
581 #define SEC_ROM 0x080
583 /* The section contains constructor information. This section
584 type is used by the linker to create lists of constructors and
585 destructors used by <<g++>>. When a back end sees a symbol
586 which should be used in a constructor list, it creates a new
587 section for the type of name (eg <<__CTOR_LIST__>>), attaches
588 the symbol to it and builds a relocation. To build the lists
589 of constructors, all the linker has to do is catenate all the
590 sections called <<__CTOR_LIST__>> and relocte the data
591 contained within - exactly the operations it would peform on
593 #define SEC_CONSTRUCTOR 0x100
595 /* The section is a constuctor, and should be placed at the
596 end of the text, data, or bss section(?). */
597 #define SEC_CONSTRUCTOR_TEXT 0x1100
598 #define SEC_CONSTRUCTOR_DATA 0x2100
599 #define SEC_CONSTRUCTOR_BSS 0x3100
601 /* The section has contents - a data section could be
602 <<SEC_ALLOC>> | <<SEC_HAS_CONTENTS>>, a debug section could be
603 <<SEC_HAS_CONTENTS>> */
604 #define SEC_HAS_CONTENTS 0x200
606 /* An instruction to the linker not to output sections
607 containing this flag even if they have information which
608 would normally be written. */
609 #define SEC_NEVER_LOAD 0x400
611 /* The section is a shared library section. The linker must leave
612 these completely alone, as the vma and size are used when
613 the executable is loaded. */
614 #define SEC_SHARED_LIBRARY 0x800
616 /* The section is a common section (symbols may be defined
617 multiple times, the value of a symbol is the amount of
618 space it requires, and the largest symbol value is the one
619 used). Most targets have exactly one of these (which we
620 translate to bfd_com_section), but ECOFF has two. */
621 #define SEC_IS_COMMON 0x8000
623 /* End of section flags. */
625 /* The virtual memory address of the section - where it will be
626 at run time. The symbols are relocated against this. The
627 user_set_vma flag is maintained by bfd; if it's not set, the
628 backend can assign addresses (for example, in <<a.out>>, where
629 the default address for <<.data>> is dependent on the specific
630 target and various flags). */
633 boolean user_set_vma
;
635 /* The load address of the section - where it would be in a
636 rom image, really only used for writing section header
641 /* The size of the section in bytes, as it will be output.
642 contains a value even if the section has no contents (eg, the
643 size of <<.bss>>). This will be filled in after relocation */
645 bfd_size_type _cooked_size
;
647 /* The size on disk of the section in bytes originally. Normally this
648 value is the same as the size, but if some relaxing has
649 been done, then this value will be bigger. */
651 bfd_size_type _raw_size
;
653 /* If this section is going to be output, then this value is the
654 offset into the output section of the first byte in the input
655 section. Eg, if this was going to start at the 100th byte in
656 the output section, this value would be 100. */
658 bfd_vma output_offset
;
660 /* The output section through which to map on output. */
662 struct sec
*output_section
;
664 /* The alignment requirement of the section, as an exponent - eg
665 3 aligns to 2^3 (or 8) */
667 unsigned int alignment_power
;
669 /* If an input section, a pointer to a vector of relocation
670 records for the data in this section. */
672 struct reloc_cache_entry
*relocation
;
674 /* If an output section, a pointer to a vector of pointers to
675 relocation records for the data in this section. */
677 struct reloc_cache_entry
**orelocation
;
679 /* The number of relocation records in one of the above */
681 unsigned reloc_count
;
683 /* Information below is back end specific - and not always used
686 /* File position of section data */
690 /* File position of relocation info */
692 file_ptr rel_filepos
;
694 /* File position of line data */
696 file_ptr line_filepos
;
698 /* Pointer to data for applications */
702 struct lang_output_section
*otheruserdata
;
704 /* Attached line number information */
708 /* Number of line number records */
710 unsigned int lineno_count
;
712 /* When a section is being output, this value changes as more
713 linenumbers are written out */
715 file_ptr moving_line_filepos
;
717 /* what the section number is in the target world */
723 /* If this is a constructor section then here is a list of the
724 relocations created to relocate items within it. */
726 struct relent_chain
*constructor_chain
;
728 /* The BFD which owns the section. */
733 /* A symbol which points at this section only */
734 struct symbol_cache_entry
*symbol
;
735 struct symbol_cache_entry
**symbol_ptr_ptr
;
737 struct bfd_seclet
*seclets_head
;
738 struct bfd_seclet
*seclets_tail
;
742 /* These sections are global, and are managed by BFD. The application
743 and target back end are not permitted to change the values in
745 #define BFD_ABS_SECTION_NAME "*ABS*"
746 #define BFD_UND_SECTION_NAME "*UND*"
747 #define BFD_COM_SECTION_NAME "*COM*"
748 #define BFD_IND_SECTION_NAME "*IND*"
750 /* the absolute section */
751 extern asection bfd_abs_section
;
752 /* Pointer to the undefined section */
753 extern asection bfd_und_section
;
754 /* Pointer to the common section */
755 extern asection bfd_com_section
;
756 /* Pointer to the indirect section */
757 extern asection bfd_ind_section
;
759 extern struct symbol_cache_entry
*bfd_abs_symbol
;
760 extern struct symbol_cache_entry
*bfd_com_symbol
;
761 extern struct symbol_cache_entry
*bfd_und_symbol
;
762 extern struct symbol_cache_entry
*bfd_ind_symbol
;
763 #define bfd_get_section_size_before_reloc(section) \
764 (section->reloc_done ? (abort(),1): (section)->_raw_size)
765 #define bfd_get_section_size_after_reloc(section) \
766 ((section->reloc_done) ? (section)->_cooked_size: (abort(),1))
768 bfd_get_section_by_name
PARAMS ((bfd
*abfd
, CONST
char *name
));
771 bfd_make_section_old_way
PARAMS ((bfd
*, CONST
char *name
));
774 bfd_make_section
PARAMS ((bfd
*, CONST
char *name
));
777 bfd_set_section_flags
PARAMS ((bfd
*, asection
*, flagword
));
780 bfd_map_over_sections
PARAMS ((bfd
*abfd
,
781 void (*func
)(bfd
*abfd
,
787 bfd_set_section_size
PARAMS ((bfd
*, asection
*, bfd_size_type val
));
790 bfd_set_section_contents
795 bfd_size_type count
));
798 bfd_get_section_contents
799 PARAMS ((bfd
*abfd
, asection
*section
, PTR location
,
800 file_ptr offset
, bfd_size_type count
));
802 enum bfd_architecture
804 bfd_arch_unknown
, /* File arch not known */
805 bfd_arch_obscure
, /* Arch known, not one of these */
806 bfd_arch_m68k
, /* Motorola 68xxx */
807 bfd_arch_vax
, /* DEC Vax */
808 bfd_arch_i960
, /* Intel 960 */
809 /* The order of the following is important.
810 lower number indicates a machine type that
811 only accepts a subset of the instructions
812 available to machines with higher numbers.
813 The exception is the "ca", which is
814 incompatible with all other machines except
817 #define bfd_mach_i960_core 1
818 #define bfd_mach_i960_ka_sa 2
819 #define bfd_mach_i960_kb_sb 3
820 #define bfd_mach_i960_mc 4
821 #define bfd_mach_i960_xa 5
822 #define bfd_mach_i960_ca 6
824 bfd_arch_a29k
, /* AMD 29000 */
825 bfd_arch_sparc
, /* SPARC */
826 bfd_arch_mips
, /* MIPS Rxxxx */
827 bfd_arch_i386
, /* Intel 386 */
828 bfd_arch_we32k
, /* AT&T WE32xxx */
829 bfd_arch_tahoe
, /* CCI/Harris Tahoe */
830 bfd_arch_i860
, /* Intel 860 */
831 bfd_arch_romp
, /* IBM ROMP PC/RT */
832 bfd_arch_alliant
, /* Alliant */
833 bfd_arch_convex
, /* Convex */
834 bfd_arch_m88k
, /* Motorola 88xxx */
835 bfd_arch_pyramid
, /* Pyramid Technology */
836 bfd_arch_h8300
, /* Hitachi H8/300 */
837 #define bfd_mach_h8300 1
838 #define bfd_mach_h8300h 2
839 bfd_arch_rs6000
, /* IBM RS/6000 */
840 bfd_arch_hppa
, /* HP PA RISC */
841 bfd_arch_z8k
, /* Zilog Z8000 */
842 #define bfd_mach_z8001 1
843 #define bfd_mach_z8002 2
844 bfd_arch_h8500
, /* Hitachi H8/500 */
845 bfd_arch_sh
, /* Hitachi SH */
846 bfd_arch_alpha
, /* Dec Alpha */
850 typedef struct bfd_arch_info
853 int bits_per_address
;
855 enum bfd_architecture arch
;
858 CONST
char *printable_name
;
859 unsigned int section_align_power
;
860 /* true if this is the default machine for the architecture */
862 CONST
struct bfd_arch_info
* (*compatible
)
863 PARAMS ((CONST
struct bfd_arch_info
*a
,
864 CONST
struct bfd_arch_info
*b
));
866 boolean (*scan
) PARAMS ((CONST
struct bfd_arch_info
*, CONST
char *));
867 /* How to disassemble an instruction, producing a printable
868 representation on a specified stdio stream. This isn't
869 defined for most processors at present, because of the size
870 of the additional tables it would drag in, and because gdb
871 wants to use a different interface. */
872 unsigned int (*disassemble
) PARAMS ((bfd_vma addr
, CONST
char *data
,
875 struct bfd_arch_info
*next
;
876 } bfd_arch_info_type
;
878 bfd_printable_name
PARAMS ((bfd
*abfd
));
881 bfd_scan_arch
PARAMS ((CONST
char *));
883 CONST bfd_arch_info_type
*
884 bfd_arch_get_compatible
PARAMS ((
889 bfd_set_arch_info
PARAMS ((bfd
*, bfd_arch_info_type
*));
891 enum bfd_architecture
892 bfd_get_arch
PARAMS ((bfd
*abfd
));
895 bfd_get_mach
PARAMS ((bfd
*abfd
));
898 bfd_arch_bits_per_byte
PARAMS ((bfd
*abfd
));
901 bfd_arch_bits_per_address
PARAMS ((bfd
*abfd
));
904 bfd_get_arch_info
PARAMS ((bfd
*));
908 PARAMS ((enum bfd_architecture
913 bfd_printable_arch_mach
914 PARAMS ((enum bfd_architecture arch
, unsigned long machine
));
916 typedef enum bfd_reloc_status
918 /* No errors detected */
921 /* The relocation was performed, but there was an overflow. */
924 /* The address to relocate was not within the section supplied. */
925 bfd_reloc_outofrange
,
927 /* Used by special functions */
931 bfd_reloc_notsupported
,
933 /* Unsupported relocation size requested. */
936 /* The symbol to relocate against was undefined. */
939 /* The relocation was performed, but may not be ok - presently
940 generated only when linking i960 coff files with i960 b.out
944 bfd_reloc_status_type
;
947 typedef struct reloc_cache_entry
949 /* A pointer into the canonical table of pointers */
950 struct symbol_cache_entry
**sym_ptr_ptr
;
952 /* offset in section */
953 bfd_size_type address
;
955 /* addend for relocation value */
958 /* Pointer to how to perform the required relocation */
959 CONST
struct reloc_howto_struct
*howto
;
962 enum complain_overflow
964 /* Do not complain on overflow. */
965 complain_overflow_dont
,
967 /* Complain if the bitfield overflows, whether it is considered
968 as signed or unsigned. */
969 complain_overflow_bitfield
,
971 /* Complain if the value overflows when considered as signed
973 complain_overflow_signed
,
975 /* Complain if the value overflows when considered as an
977 complain_overflow_unsigned
980 typedef CONST
struct reloc_howto_struct
982 /* The type field has mainly a documetary use - the back end can
983 to what it wants with it, though the normally the back end's
984 external idea of what a reloc number would be would be stored
985 in this field. For example, the a PC relative word relocation
986 in a coff environment would have the type 023 - because that's
987 what the outside world calls a R_PCRWORD reloc. */
990 /* The value the final relocation is shifted right by. This drops
991 unwanted data from the relocation. */
992 unsigned int rightshift
;
994 /* The size of the item to be relocated - 0, is one byte, 1 is 2
995 bytes, 2 is four bytes. A negative value indicates that the
996 result is to be subtracted from the data. */
999 /* The number of bits in the item to be relocated. This is used
1000 when doing overflow checking. */
1001 unsigned int bitsize
;
1003 /* Notes that the relocation is relative to the location in the
1004 data section of the addend. The relocation function will
1005 subtract from the relocation value the address of the location
1007 boolean pc_relative
;
1009 /* The bit position of the reloc value in the destination.
1010 The relocated value is left shifted by this amount. */
1011 unsigned int bitpos
;
1013 /* What type of overflow error should be checked for when
1015 enum complain_overflow complain_on_overflow
;
1017 /* If this field is non null, then the supplied function is
1018 called rather than the normal function. This allows really
1019 strange relocation methods to be accomodated (e.g., i960 callj
1021 bfd_reloc_status_type (*special_function
)
1023 arelent
*reloc_entry
,
1024 struct symbol_cache_entry
*symbol
,
1026 asection
*input_section
,
1029 /* The textual name of the relocation type. */
1032 /* When performing a partial link, some formats must modify the
1033 relocations rather than the data - this flag signals this.*/
1034 boolean partial_inplace
;
1036 /* The src_mask is used to select what parts of the read in data
1037 are to be used in the relocation sum. E.g., if this was an 8 bit
1038 bit of data which we read and relocated, this would be
1039 0x000000ff. When we have relocs which have an addend, such as
1040 sun4 extended relocs, the value in the offset part of a
1041 relocating field is garbage so we never use it. In this case
1042 the mask would be 0x00000000. */
1045 /* The dst_mask is what parts of the instruction are replaced
1046 into the instruction. In most cases src_mask == dst_mask,
1047 except in the above special case, where dst_mask would be
1048 0x000000ff, and src_mask would be 0x00000000. */
1051 /* When some formats create PC relative instructions, they leave
1052 the value of the pc of the place being relocated in the offset
1053 slot of the instruction, so that a PC relative relocation can
1054 be made just by adding in an ordinary offset (e.g., sun3 a.out).
1055 Some formats leave the displacement part of an instruction
1056 empty (e.g., m88k bcs), this flag signals the fact.*/
1057 boolean pcrel_offset
;
1060 #define HOWTO(C, R,S,B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
1061 {(unsigned)C,R,S,B, P, BI, O,SF,NAME,INPLACE,MASKSRC,MASKDST,PC}
1062 #define NEWHOWTO( FUNCTION, NAME,SIZE,REL,IN) HOWTO(0,0,SIZE,0,REL,0,complain_overflow_dont,FUNCTION, NAME,false,0,0,IN)
1064 #define HOWTO_PREPARE(relocation, symbol) \
1066 if (symbol != (asymbol *)NULL) { \
1067 if (bfd_is_com_section (symbol->section)) { \
1071 relocation = symbol->value; \
1075 typedef unsigned char bfd_byte
;
1077 typedef struct relent_chain
{
1079 struct relent_chain
*next
;
1081 bfd_reloc_status_type
1083 bfd_perform_relocation
1084 PARAMS ((bfd
* abfd
,
1085 arelent
*reloc_entry
,
1087 asection
*input_section
,
1090 typedef enum bfd_reloc_code_real
1093 /* 64 bits wide, simple reloc */
1095 /* 64 bits, PC-relative */
1098 /* 32 bits wide, simple reloc */
1100 /* 32 bits, PC-relative */
1103 /* 16 bits wide, simple reloc */
1105 /* 16 bits, PC-relative */
1108 /* 8 bits wide, simple */
1110 /* 8 bits wide, pc relative */
1112 /* 8 bits wide, but used to form an address like 0xffnn */
1115 /* The type of reloc used to build a contructor table - at the moment
1116 probably a 32 bit wide abs address, but the cpu can choose. */
1119 /* High 22 bits of 32-bit value; simple reloc. */
1124 /* Reloc types used for i960/b.out. */
1126 BFD_RELOC_I960_CALLJ
,
1128 /* 32-bit pc-relative, shifted right 2 bits (i.e., 30-bit
1129 word displacement, e.g. for SPARC) */
1130 BFD_RELOC_32_PCREL_S2
,
1132 /* now for the sparc/elf codes */
1133 BFD_RELOC_NONE
, /* actually used */
1134 BFD_RELOC_SPARC_WDISP22
,
1137 BFD_RELOC_SPARC_GOT10
,
1138 BFD_RELOC_SPARC_GOT13
,
1139 BFD_RELOC_SPARC_GOT22
,
1140 BFD_RELOC_SPARC_PC10
,
1141 BFD_RELOC_SPARC_PC22
,
1142 BFD_RELOC_SPARC_WPLT30
,
1143 BFD_RELOC_SPARC_COPY
,
1144 BFD_RELOC_SPARC_GLOB_DAT
,
1145 BFD_RELOC_SPARC_JMP_SLOT
,
1146 BFD_RELOC_SPARC_RELATIVE
,
1147 BFD_RELOC_SPARC_UA32
,
1149 /* these are a.out specific? */
1150 BFD_RELOC_SPARC_BASE13
,
1151 BFD_RELOC_SPARC_BASE22
,
1153 /* start-sanitize-v9 */
1156 #define BFD_RELOC_SPARC_64 BFD_RELOC_64
1157 BFD_RELOC_SPARC_OLO10
,
1158 BFD_RELOC_SPARC_HH22
,
1159 BFD_RELOC_SPARC_HM10
,
1160 BFD_RELOC_SPARC_LM22
,
1161 BFD_RELOC_SPARC_PC_HH22
,
1162 BFD_RELOC_SPARC_PC_HM10
,
1163 BFD_RELOC_SPARC_PC_LM22
,
1164 BFD_RELOC_SPARC_WDISP16
,
1165 BFD_RELOC_SPARC_WDISP19
,
1166 BFD_RELOC_SPARC_GLOB_JMP
,
1167 BFD_RELOC_SPARC_LO7
,
1168 /* end-sanitize-v9 */
1170 /* Bits 27..2 of the relocation address shifted right 2 bits;
1171 simple reloc otherwise. */
1174 /* signed 16-bit pc-relative, shifted right 2 bits (e.g. for MIPS) */
1175 BFD_RELOC_16_PCREL_S2
,
1177 /* High 16 bits of 32-bit value; simple reloc. */
1179 /* High 16 bits of 32-bit value but the low 16 bits will be sign
1180 extended and added to form the final result. If the low 16
1181 bits form a negative number, we need to add one to the high value
1182 to compensate for the borrow when the low bits are added. */
1187 /* 16 bit relocation relative to the global pointer. */
1188 BFD_RELOC_MIPS_GPREL
,
1190 /* These are, so far, specific to HPPA processors. I'm not sure that some
1191 don't duplicate other reloc types, such as BFD_RELOC_32 and _32_PCREL.
1192 Also, many more were in the list I got that don't fit in well in the
1193 model BFD uses, so I've omitted them for now. If we do make this reloc
1194 type get used for code that really does implement the funky reloc types,
1195 they'll have to be added to this list. */
1205 BFD_RELOC_HPPA_LS21
,
1206 BFD_RELOC_HPPA_RS11
,
1207 BFD_RELOC_HPPA_RS14
,
1208 BFD_RELOC_HPPA_RS17
,
1209 BFD_RELOC_HPPA_LD21
,
1210 BFD_RELOC_HPPA_RD11
,
1211 BFD_RELOC_HPPA_RD14
,
1212 BFD_RELOC_HPPA_RD17
,
1213 BFD_RELOC_HPPA_LR21
,
1214 BFD_RELOC_HPPA_RR14
,
1215 BFD_RELOC_HPPA_RR17
,
1217 BFD_RELOC_HPPA_GOTOFF_11
,
1218 BFD_RELOC_HPPA_GOTOFF_14
,
1219 BFD_RELOC_HPPA_GOTOFF_L21
,
1220 BFD_RELOC_HPPA_GOTOFF_R11
,
1221 BFD_RELOC_HPPA_GOTOFF_R14
,
1222 BFD_RELOC_HPPA_GOTOFF_LS21
,
1223 BFD_RELOC_HPPA_GOTOFF_RS11
,
1224 BFD_RELOC_HPPA_GOTOFF_RS14
,
1225 BFD_RELOC_HPPA_GOTOFF_LD21
,
1226 BFD_RELOC_HPPA_GOTOFF_RD11
,
1227 BFD_RELOC_HPPA_GOTOFF_RD14
,
1228 BFD_RELOC_HPPA_GOTOFF_LR21
,
1229 BFD_RELOC_HPPA_GOTOFF_RR14
,
1231 BFD_RELOC_HPPA_DLT_32
,
1232 BFD_RELOC_HPPA_DLT_11
,
1233 BFD_RELOC_HPPA_DLT_14
,
1234 BFD_RELOC_HPPA_DLT_L21
,
1235 BFD_RELOC_HPPA_DLT_R11
,
1236 BFD_RELOC_HPPA_DLT_R14
,
1238 BFD_RELOC_HPPA_ABS_CALL_11
,
1239 BFD_RELOC_HPPA_ABS_CALL_14
,
1240 BFD_RELOC_HPPA_ABS_CALL_17
,
1241 BFD_RELOC_HPPA_ABS_CALL_L21
,
1242 BFD_RELOC_HPPA_ABS_CALL_R11
,
1243 BFD_RELOC_HPPA_ABS_CALL_R14
,
1244 BFD_RELOC_HPPA_ABS_CALL_R17
,
1245 BFD_RELOC_HPPA_ABS_CALL_LS21
,
1246 BFD_RELOC_HPPA_ABS_CALL_RS11
,
1247 BFD_RELOC_HPPA_ABS_CALL_RS14
,
1248 BFD_RELOC_HPPA_ABS_CALL_RS17
,
1249 BFD_RELOC_HPPA_ABS_CALL_LD21
,
1250 BFD_RELOC_HPPA_ABS_CALL_RD11
,
1251 BFD_RELOC_HPPA_ABS_CALL_RD14
,
1252 BFD_RELOC_HPPA_ABS_CALL_RD17
,
1253 BFD_RELOC_HPPA_ABS_CALL_LR21
,
1254 BFD_RELOC_HPPA_ABS_CALL_RR14
,
1255 BFD_RELOC_HPPA_ABS_CALL_RR17
,
1257 BFD_RELOC_HPPA_PCREL_CALL_11
,
1258 BFD_RELOC_HPPA_PCREL_CALL_12
,
1259 BFD_RELOC_HPPA_PCREL_CALL_14
,
1260 BFD_RELOC_HPPA_PCREL_CALL_17
,
1261 BFD_RELOC_HPPA_PCREL_CALL_L21
,
1262 BFD_RELOC_HPPA_PCREL_CALL_R11
,
1263 BFD_RELOC_HPPA_PCREL_CALL_R14
,
1264 BFD_RELOC_HPPA_PCREL_CALL_R17
,
1265 BFD_RELOC_HPPA_PCREL_CALL_LS21
,
1266 BFD_RELOC_HPPA_PCREL_CALL_RS11
,
1267 BFD_RELOC_HPPA_PCREL_CALL_RS14
,
1268 BFD_RELOC_HPPA_PCREL_CALL_RS17
,
1269 BFD_RELOC_HPPA_PCREL_CALL_LD21
,
1270 BFD_RELOC_HPPA_PCREL_CALL_RD11
,
1271 BFD_RELOC_HPPA_PCREL_CALL_RD14
,
1272 BFD_RELOC_HPPA_PCREL_CALL_RD17
,
1273 BFD_RELOC_HPPA_PCREL_CALL_LR21
,
1274 BFD_RELOC_HPPA_PCREL_CALL_RR14
,
1275 BFD_RELOC_HPPA_PCREL_CALL_RR17
,
1277 BFD_RELOC_HPPA_PLABEL_32
,
1278 BFD_RELOC_HPPA_PLABEL_11
,
1279 BFD_RELOC_HPPA_PLABEL_14
,
1280 BFD_RELOC_HPPA_PLABEL_L21
,
1281 BFD_RELOC_HPPA_PLABEL_R11
,
1282 BFD_RELOC_HPPA_PLABEL_R14
,
1284 BFD_RELOC_HPPA_UNWIND_ENTRY
,
1285 BFD_RELOC_HPPA_UNWIND_ENTRIES
,
1287 /* i386/elf relocations */
1288 BFD_RELOC_386_GOT32
,
1289 BFD_RELOC_386_PLT32
,
1291 BFD_RELOC_386_GLOB_DAT
,
1292 BFD_RELOC_386_JUMP_SLOT
,
1293 BFD_RELOC_386_RELATIVE
,
1294 BFD_RELOC_386_GOTOFF
,
1295 BFD_RELOC_386_GOTPC
,
1297 /* this must be the highest numeric value */
1299 } bfd_reloc_code_real_type
;
1300 CONST
struct reloc_howto_struct
*
1302 bfd_reloc_type_lookup
PARAMS ((bfd
*abfd
, bfd_reloc_code_real_type code
));
1305 typedef struct symbol_cache_entry
1307 /* A pointer to the BFD which owns the symbol. This information
1308 is necessary so that a back end can work out what additional
1309 information (invisible to the application writer) is carried
1312 This field is *almost* redundant, since you can use section->owner
1313 instead, except that some symbols point to the global sections
1314 bfd_{abs,com,und}_section. This could be fixed by making
1315 these globals be per-bfd (or per-target-flavor). FIXME. */
1317 struct _bfd
*the_bfd
; /* Use bfd_asymbol_bfd(sym) to access this field. */
1319 /* The text of the symbol. The name is left alone, and not copied - the
1320 application may not alter it. */
1323 /* The value of the symbol. This really should be a union of a
1324 numeric value with a pointer, since some flags indicate that
1325 a pointer to another symbol is stored here. */
1328 /* Attributes of a symbol: */
1330 #define BSF_NO_FLAGS 0x00
1332 /* The symbol has local scope; <<static>> in <<C>>. The value
1333 is the offset into the section of the data. */
1334 #define BSF_LOCAL 0x01
1336 /* The symbol has global scope; initialized data in <<C>>. The
1337 value is the offset into the section of the data. */
1338 #define BSF_GLOBAL 0x02
1340 /* The symbol has global scope, and is exported. The value is
1341 the offset into the section of the data. */
1342 #define BSF_EXPORT BSF_GLOBAL /* no real difference */
1344 /* A normal C symbol would be one of:
1345 <<BSF_LOCAL>>, <<BSF_FORT_COMM>>, <<BSF_UNDEFINED>> or
1348 /* The symbol is a debugging record. The value has an arbitary
1350 #define BSF_DEBUGGING 0x08
1352 /* The symbol denotes a function entry point. Used in ELF,
1353 perhaps others someday. */
1354 #define BSF_FUNCTION 0x10
1356 /* Used by the linker. */
1357 #define BSF_KEEP 0x20
1358 #define BSF_KEEP_G 0x40
1360 /* A weak global symbol, overridable without warnings by
1361 a regular global symbol of the same name. */
1362 #define BSF_WEAK 0x80
1364 /* This symbol was created to point to a section, e.g. ELF's
1365 STT_SECTION symbols. */
1366 #define BSF_SECTION_SYM 0x100
1368 /* The symbol used to be a common symbol, but now it is
1370 #define BSF_OLD_COMMON 0x200
1372 /* The default value for common data. */
1373 #define BFD_FORT_COMM_DEFAULT_VALUE 0
1375 /* In some files the type of a symbol sometimes alters its
1376 location in an output file - ie in coff a <<ISFCN>> symbol
1377 which is also <<C_EXT>> symbol appears where it was
1378 declared and not at the end of a section. This bit is set
1379 by the target BFD part to convey this information. */
1381 #define BSF_NOT_AT_END 0x400
1383 /* Signal that the symbol is the label of constructor section. */
1384 #define BSF_CONSTRUCTOR 0x800
1386 /* Signal that the symbol is a warning symbol. If the symbol
1387 is a warning symbol, then the value field (I know this is
1388 tacky) will point to the asymbol which when referenced will
1389 cause the warning. */
1390 #define BSF_WARNING 0x1000
1392 /* Signal that the symbol is indirect. The value of the symbol
1393 is a pointer to an undefined asymbol which contains the
1394 name to use instead. */
1395 #define BSF_INDIRECT 0x2000
1397 /* BSF_FILE marks symbols that contain a file name. This is used
1398 for ELF STT_FILE symbols. */
1399 #define BSF_FILE 0x4000
1403 /* A pointer to the section to which this symbol is
1404 relative. This will always be non NULL, there are special
1405 sections for undefined and absolute symbols */
1406 struct sec
*section
;
1408 /* Back end special data. This is being phased out in favour
1409 of making this a union. */
1413 #define get_symtab_upper_bound(abfd) \
1414 BFD_SEND (abfd, _get_symtab_upper_bound, (abfd))
1415 #define bfd_canonicalize_symtab(abfd, location) \
1416 BFD_SEND (abfd, _bfd_canonicalize_symtab,\
1419 bfd_set_symtab
PARAMS ((bfd
*, asymbol
**, unsigned int ));
1422 bfd_print_symbol_vandf
PARAMS ((PTR file
, asymbol
*symbol
));
1424 #define bfd_make_empty_symbol(abfd) \
1425 BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd))
1426 #define bfd_make_debug_symbol(abfd,ptr,size) \
1427 BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size))
1429 bfd_decode_symclass
PARAMS ((asymbol
*symbol
));
1432 bfd_symbol_info
PARAMS ((asymbol
*symbol
, symbol_info
*ret
));
1436 /* The filename the application opened the BFD with. */
1437 CONST
char *filename
;
1439 /* A pointer to the target jump table. */
1440 struct bfd_target
*xvec
;
1442 /* To avoid dragging too many header files into every file that
1443 includes `<<bfd.h>>', IOSTREAM has been declared as a "char
1444 *", and MTIME as a "long". Their correct types, to which they
1445 are cast when used, are "FILE *" and "time_t". The iostream
1446 is the result of an fopen on the filename. */
1449 /* Is the file being cached */
1453 /* Marks whether there was a default target specified when the
1454 BFD was opened. This is used to select what matching algorithm
1455 to use to chose the back end. */
1457 boolean target_defaulted
;
1459 /* The caching routines use these to maintain a
1460 least-recently-used list of BFDs */
1462 struct _bfd
*lru_prev
, *lru_next
;
1464 /* When a file is closed by the caching routines, BFD retains
1465 state information on the file here:
1472 boolean opened_once
;
1474 /* Set if we have a locally maintained mtime value, rather than
1475 getting it from the file each time: */
1479 /* File modified time, if mtime_set is true: */
1483 /* Reserved for an unimplemented file locking extension.*/
1487 /* The format which belongs to the BFD.*/
1491 /* The direction the BFD was opened with*/
1493 enum bfd_direction
{no_direction
= 0,
1495 write_direction
= 2,
1496 both_direction
= 3} direction
;
1498 /* Format_specific flags*/
1502 /* Currently my_archive is tested before adding origin to
1503 anything. I believe that this can become always an add of
1504 origin, with origin set to 0 for non archive files. */
1508 /* Remember when output has begun, to stop strange things
1510 boolean output_has_begun
;
1512 /* Pointer to linked list of sections*/
1513 struct sec
*sections
;
1515 /* The number of sections */
1516 unsigned int section_count
;
1518 /* Stuff only useful for object files:
1519 The start address. */
1520 bfd_vma start_address
;
1522 /* Used for input and output*/
1523 unsigned int symcount
;
1525 /* Symbol table for output BFD*/
1526 struct symbol_cache_entry
**outsymbols
;
1528 /* Pointer to structure which contains architecture information*/
1529 struct bfd_arch_info
*arch_info
;
1531 /* Stuff only useful for archives:*/
1533 struct _bfd
*my_archive
;
1535 struct _bfd
*archive_head
;
1538 /* Used by the back end to hold private data. */
1542 struct aout_data_struct
*aout_data
;
1543 struct artdata
*aout_ar_data
;
1544 struct _oasys_data
*oasys_obj_data
;
1545 struct _oasys_ar_data
*oasys_ar_data
;
1546 struct coff_tdata
*coff_obj_data
;
1547 struct ecoff_tdata
*ecoff_obj_data
;
1548 struct ieee_data_struct
*ieee_data
;
1549 struct ieee_ar_data_struct
*ieee_ar_data
;
1550 struct srec_data_struct
*srec_data
;
1551 struct tekhex_data_struct
*tekhex_data
;
1552 struct elf_obj_tdata
*elf_obj_data
;
1553 struct nlm_obj_tdata
*nlm_obj_data
;
1554 struct bout_data_struct
*bout_data
;
1555 struct sun_core_struct
*sun_core_data
;
1556 struct trad_core_struct
*trad_core_data
;
1557 struct hppa_data_struct
*hppa_data
;
1558 struct hpux_core_struct
*hpux_core_data
;
1559 struct sgi_core_struct
*sgi_core_data
;
1560 struct lynx_core_struct
*lynx_core_data
;
1564 /* Used by the application to hold private data*/
1567 /* Where all the allocated stuff under this BFD goes */
1568 struct obstack memory
;
1570 /* Is this really needed in addition to usrdata? */
1571 asymbol
**ld_symbols
;
1575 bfd_get_reloc_upper_bound
PARAMS ((bfd
*abfd
, asection
*sect
));
1578 bfd_canonicalize_reloc
1585 bfd_set_file_flags
PARAMS ((bfd
*abfd
, flagword flags
));
1589 PARAMS ((bfd
*abfd
, asection
*sec
, arelent
**rel
, unsigned int count
)
1594 bfd_set_start_address
PARAMS ((bfd
*, bfd_vma
));
1597 bfd_get_mtime
PARAMS ((bfd
*));
1600 bfd_get_size
PARAMS ((bfd
*));
1603 bfd_get_gp_size
PARAMS ((bfd
*));
1606 bfd_set_gp_size
PARAMS ((bfd
*, int));
1609 bfd_scan_vma
PARAMS ((CONST
char *string
, CONST
char **end
, int base
));
1611 #define bfd_sizeof_headers(abfd, reloc) \
1612 BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc))
1614 #define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
1615 BFD_SEND (abfd, _bfd_find_nearest_line, (abfd, sec, syms, off, file, func, line))
1617 /* Do these three do anything useful at all, for any back end? */
1618 #define bfd_debug_info_start(abfd) \
1619 BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
1621 #define bfd_debug_info_end(abfd) \
1622 BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
1624 #define bfd_debug_info_accumulate(abfd, section) \
1625 BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
1628 #define bfd_stat_arch_elt(abfd, stat) \
1629 BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
1631 #define bfd_set_arch_mach(abfd, arch, mach)\
1632 BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
1634 #define bfd_get_relocated_section_contents(abfd, seclet, data, relocateable) \
1635 BFD_SEND (abfd, _bfd_get_relocated_section_contents, (abfd, seclet, data, relocateable))
1637 #define bfd_relax_section(abfd, section, symbols) \
1638 BFD_SEND (abfd, _bfd_relax_section, (abfd, section, symbols))
1640 #define bfd_seclet_link(abfd, data, relocateable) \
1641 BFD_SEND (abfd, _bfd_seclet_link, (abfd, data, relocateable))
1643 bfd_get_next_mapent
PARAMS ((bfd
*, symindex previous
, carsym
** sym
));
1646 bfd_set_archive_head
PARAMS ((bfd
*output
, bfd
*new_head
));
1649 bfd_get_elt_at_index
PARAMS ((bfd
* archive
, int index
));
1652 bfd_openr_next_archived_file
PARAMS ((bfd
*archive
, bfd
*previous
));
1655 bfd_core_file_failing_command
PARAMS ((bfd
*));
1658 bfd_core_file_failing_signal
PARAMS ((bfd
*));
1661 core_file_matches_executable_p
1662 PARAMS ((bfd
*core_bfd
, bfd
*exec_bfd
));
1664 #define BFD_SEND(bfd, message, arglist) \
1665 ((*((bfd)->xvec->message)) arglist)
1666 #define BFD_SEND_FMT(bfd, message, arglist) \
1667 (((bfd)->xvec->message[(int)((bfd)->format)]) arglist)
1668 typedef struct bfd_target
1671 enum target_flavour
{
1672 bfd_target_unknown_flavour
,
1673 bfd_target_aout_flavour
,
1674 bfd_target_coff_flavour
,
1675 bfd_target_ecoff_flavour
,
1676 bfd_target_elf_flavour
,
1677 bfd_target_ieee_flavour
,
1678 bfd_target_nlm_flavour
,
1679 bfd_target_oasys_flavour
,
1680 bfd_target_tekhex_flavour
,
1681 bfd_target_srec_flavour
,
1682 bfd_target_hppa_flavour
} flavour
;
1683 boolean byteorder_big_p
;
1684 boolean header_byteorder_big_p
;
1685 flagword object_flags
;
1686 flagword section_flags
;
1687 char symbol_leading_char
;
1689 unsigned short ar_max_namelen
;
1690 unsigned int align_power_min
;
1691 bfd_vma (*bfd_getx64
) PARAMS ((bfd_byte
*));
1692 bfd_signed_vma (*bfd_getx_signed_64
) PARAMS ((bfd_byte
*));
1693 void (*bfd_putx64
) PARAMS ((bfd_vma
, bfd_byte
*));
1694 bfd_vma (*bfd_getx32
) PARAMS ((bfd_byte
*));
1695 bfd_signed_vma (*bfd_getx_signed_32
) PARAMS ((bfd_byte
*));
1696 void (*bfd_putx32
) PARAMS ((bfd_vma
, bfd_byte
*));
1697 bfd_vma (*bfd_getx16
) PARAMS ((bfd_byte
*));
1698 bfd_signed_vma (*bfd_getx_signed_16
) PARAMS ((bfd_byte
*));
1699 void (*bfd_putx16
) PARAMS ((bfd_vma
, bfd_byte
*));
1700 bfd_vma (*bfd_h_getx64
) PARAMS ((bfd_byte
*));
1701 bfd_signed_vma (*bfd_h_getx_signed_64
) PARAMS ((bfd_byte
*));
1702 void (*bfd_h_putx64
) PARAMS ((bfd_vma
, bfd_byte
*));
1703 bfd_vma (*bfd_h_getx32
) PARAMS ((bfd_byte
*));
1704 bfd_signed_vma (*bfd_h_getx_signed_32
) PARAMS ((bfd_byte
*));
1705 void (*bfd_h_putx32
) PARAMS ((bfd_vma
, bfd_byte
*));
1706 bfd_vma (*bfd_h_getx16
) PARAMS ((bfd_byte
*));
1707 bfd_signed_vma (*bfd_h_getx_signed_16
) PARAMS ((bfd_byte
*));
1708 void (*bfd_h_putx16
) PARAMS ((bfd_vma
, bfd_byte
*));
1709 struct bfd_target
* (*_bfd_check_format
[bfd_type_end
]) PARAMS ((bfd
*));
1710 boolean (*_bfd_set_format
[bfd_type_end
]) PARAMS ((bfd
*));
1711 boolean (*_bfd_write_contents
[bfd_type_end
]) PARAMS ((bfd
*));
1712 char * (*_core_file_failing_command
) PARAMS ((bfd
*));
1713 int (*_core_file_failing_signal
) PARAMS ((bfd
*));
1714 boolean (*_core_file_matches_executable_p
) PARAMS ((bfd
*, bfd
*));
1715 boolean (*_bfd_slurp_armap
) PARAMS ((bfd
*));
1716 boolean (*_bfd_slurp_extended_name_table
) PARAMS ((bfd
*));
1717 void (*_bfd_truncate_arname
) PARAMS ((bfd
*, CONST
char *, char *));
1718 boolean (*write_armap
) PARAMS ((bfd
*arch
,
1719 unsigned int elength
,
1721 unsigned int orl_count
,
1723 boolean (*_close_and_cleanup
) PARAMS ((bfd
*));
1724 boolean (*_bfd_set_section_contents
) PARAMS ((bfd
*, sec_ptr
, PTR
,
1725 file_ptr
, bfd_size_type
));
1726 boolean (*_bfd_get_section_contents
) PARAMS ((bfd
*, sec_ptr
, PTR
,
1727 file_ptr
, bfd_size_type
));
1728 boolean (*_new_section_hook
) PARAMS ((bfd
*, sec_ptr
));
1729 unsigned int (*_get_symtab_upper_bound
) PARAMS ((bfd
*));
1730 unsigned int (*_bfd_canonicalize_symtab
) PARAMS ((bfd
*,
1731 struct symbol_cache_entry
**));
1732 unsigned int (*_get_reloc_upper_bound
) PARAMS ((bfd
*, sec_ptr
));
1733 unsigned int (*_bfd_canonicalize_reloc
) PARAMS ((bfd
*, sec_ptr
, arelent
**,
1734 struct symbol_cache_entry
**));
1735 struct symbol_cache_entry
*
1736 (*_bfd_make_empty_symbol
) PARAMS ((bfd
*));
1737 void (*_bfd_print_symbol
) PARAMS ((bfd
*, PTR
,
1738 struct symbol_cache_entry
*,
1739 bfd_print_symbol_type
));
1740 #define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e))
1741 void (*_bfd_get_symbol_info
) PARAMS ((bfd
*,
1742 struct symbol_cache_entry
*,
1744 #define bfd_get_symbol_info(b,p,e) BFD_SEND(b, _bfd_get_symbol_info, (b,p,e))
1745 alent
* (*_get_lineno
) PARAMS ((bfd
*, struct symbol_cache_entry
*));
1747 boolean (*_bfd_set_arch_mach
) PARAMS ((bfd
*, enum bfd_architecture
,
1750 bfd
* (*openr_next_archived_file
) PARAMS ((bfd
*arch
, bfd
*prev
));
1752 boolean (*_bfd_find_nearest_line
) PARAMS ((bfd
*abfd
,
1753 struct sec
*section
, struct symbol_cache_entry
**symbols
,
1754 bfd_vma offset
, CONST
char **file
, CONST
char **func
,
1755 unsigned int *line
));
1757 int (*_bfd_stat_arch_elt
) PARAMS ((bfd
*, struct stat
*));
1759 int (*_bfd_sizeof_headers
) PARAMS ((bfd
*, boolean
));
1761 void (*_bfd_debug_info_start
) PARAMS ((bfd
*));
1762 void (*_bfd_debug_info_end
) PARAMS ((bfd
*));
1763 void (*_bfd_debug_info_accumulate
) PARAMS ((bfd
*, struct sec
*));
1765 bfd_byte
* (*_bfd_get_relocated_section_contents
) PARAMS ((bfd
*,
1766 struct bfd_seclet
*, bfd_byte
*data
,
1767 boolean relocateable
));
1769 boolean (*_bfd_relax_section
) PARAMS ((bfd
*, struct sec
*,
1770 struct symbol_cache_entry
**));
1772 boolean (*_bfd_seclet_link
) PARAMS ((bfd
*, PTR data
,
1773 boolean relocateable
));
1774 /* See documentation on reloc types. */
1775 CONST
struct reloc_howto_struct
*
1776 (*reloc_type_lookup
) PARAMS ((bfd
*abfd
,
1777 bfd_reloc_code_real_type code
));
1779 /* Back-door to allow format-aware applications to create debug symbols
1780 while using BFD for everything else. Currently used by the assembler
1781 when creating COFF files. */
1782 asymbol
* (*_bfd_make_debug_symbol
) PARAMS ((
1785 unsigned long size
));
1789 bfd_find_target
PARAMS ((CONST
char *, bfd
*));
1792 bfd_target_list
PARAMS ((void));
1795 bfd_check_format
PARAMS ((bfd
*abfd
, bfd_format format
));
1798 bfd_set_format
PARAMS ((bfd
*, bfd_format
));
1801 bfd_format_string
PARAMS ((bfd_format
));