1 /* Generic BFD library interface and support routines.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
4 Free Software Foundation, Inc.
5 Written by Cygnus Support.
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
27 A BFD has type <<bfd>>; objects of this type are the
28 cornerstone of any application using BFD. Using BFD
29 consists of making references though the BFD and to data in the BFD.
31 Here is the structure that defines the type <<bfd>>. It
32 contains the major data about the file and pointers
33 to the rest of the data.
39 . {* The filename the application opened the BFD with. *}
40 . const char *filename;
42 . {* A pointer to the target jump table. *}
43 . const struct bfd_target *xvec;
45 . {* To avoid dragging too many header files into every file that
46 . includes `<<bfd.h>>', IOSTREAM has been declared as a "char
47 . *", and MTIME as a "long". Their correct types, to which they
48 . are cast when used, are "FILE *" and "time_t". The iostream
49 . is the result of an fopen on the filename. However, if the
50 . BFD_IN_MEMORY flag is set, then iostream is actually a pointer
51 . to a bfd_in_memory struct. *}
54 . {* Is the file descriptor being cached? That is, can it be closed as
55 . needed, and re-opened when accessed later? *}
59 . {* Marks whether there was a default target specified when the
60 . BFD was opened. This is used to select which matching algorithm
61 . to use to choose the back end. *}
63 . boolean target_defaulted;
65 . {* The caching routines use these to maintain a
66 . least-recently-used list of BFDs *}
68 . struct _bfd *lru_prev, *lru_next;
70 . {* When a file is closed by the caching routines, BFD retains
71 . state information on the file here: *}
75 . {* and here: (``once'' means at least once) *}
77 . boolean opened_once;
79 . {* Set if we have a locally maintained mtime value, rather than
80 . getting it from the file each time: *}
84 . {* File modified time, if mtime_set is true: *}
88 . {* Reserved for an unimplemented file locking extension.*}
92 . {* The format which belongs to the BFD. (object, core, etc.) *}
96 . {* The direction the BFD was opened with*}
98 . enum bfd_direction {no_direction = 0,
100 . write_direction = 2,
101 . both_direction = 3} direction;
103 . {* Format_specific flags*}
107 . {* Currently my_archive is tested before adding origin to
108 . anything. I believe that this can become always an add of
109 . origin, with origin set to 0 for non archive files. *}
113 . {* Remember when output has begun, to stop strange things
115 . boolean output_has_begun;
117 . {* Pointer to linked list of sections*}
118 . struct sec *sections;
120 . {* The number of sections *}
121 . unsigned int section_count;
123 . {* Stuff only useful for object files:
124 . The start address. *}
125 . bfd_vma start_address;
127 . {* Used for input and output*}
128 . unsigned int symcount;
130 . {* Symbol table for output BFD (with symcount entries) *}
131 . struct symbol_cache_entry **outsymbols;
133 . {* Pointer to structure which contains architecture information*}
134 . const struct bfd_arch_info *arch_info;
136 . {* Stuff only useful for archives:*}
138 . struct _bfd *my_archive; {* The containing archive BFD. *}
139 . struct _bfd *next; {* The next BFD in the archive. *}
140 . struct _bfd *archive_head; {* The first BFD in the archive. *}
143 . {* A chain of BFD structures involved in a link. *}
144 . struct _bfd *link_next;
146 . {* A field used by _bfd_generic_link_add_archive_symbols. This will
147 . be used only for archive elements. *}
150 . {* Used by the back end to hold private data. *}
154 . struct aout_data_struct *aout_data;
155 . struct artdata *aout_ar_data;
156 . struct _oasys_data *oasys_obj_data;
157 . struct _oasys_ar_data *oasys_ar_data;
158 . struct coff_tdata *coff_obj_data;
159 . struct pe_tdata *pe_obj_data;
160 . struct xcoff_tdata *xcoff_obj_data;
161 . struct ecoff_tdata *ecoff_obj_data;
162 . struct ieee_data_struct *ieee_data;
163 . struct ieee_ar_data_struct *ieee_ar_data;
164 . struct srec_data_struct *srec_data;
165 . struct ihex_data_struct *ihex_data;
166 . struct tekhex_data_struct *tekhex_data;
167 . struct elf_obj_tdata *elf_obj_data;
168 . struct nlm_obj_tdata *nlm_obj_data;
169 . struct bout_data_struct *bout_data;
170 . struct sun_core_struct *sun_core_data;
171 . struct sco5_core_struct *sco5_core_data;
172 . struct trad_core_struct *trad_core_data;
173 . struct som_data_struct *som_data;
174 . struct hpux_core_struct *hpux_core_data;
175 . struct hppabsd_core_struct *hppabsd_core_data;
176 . struct sgi_core_struct *sgi_core_data;
177 . struct lynx_core_struct *lynx_core_data;
178 . struct osf_core_struct *osf_core_data;
179 . struct cisco_core_struct *cisco_core_data;
180 . struct versados_data_struct *versados_data;
181 . struct netbsd_core_struct *netbsd_core_data;
185 . {* Used by the application to hold private data*}
188 . {* Where all the allocated stuff under this BFD goes. This is a
189 . struct objalloc *, but we use PTR to avoid requiring the inclusion of
199 #ifdef ANSI_PROTOTYPES
205 #include "libiberty.h"
206 #include "safe-ctype.h"
209 #include "coff/internal.h"
210 #include "coff/sym.h"
212 #include "libecoff.h"
216 /* provide storage for subsystem, stack and heap data which may have been
217 passed in on the command line. Ld puts this data into a bfd_link_info
218 struct which ultimately gets passed in to the bfd. When it arrives, copy
219 it to the following struct so that the data will be available in coffcode.h
220 where it is needed. The typedef's used are defined in bfd.h */
226 Most BFD functions return nonzero on success (check their
227 individual documentation for precise semantics). On an error,
228 they call <<bfd_set_error>> to set an error condition that callers
229 can check by calling <<bfd_get_error>>.
230 If that returns <<bfd_error_system_call>>, then check
233 The easiest way to report a BFD error to the user is to
237 Type <<bfd_error_type>>
239 The values returned by <<bfd_get_error>> are defined by the
240 enumerated type <<bfd_error_type>>.
244 .typedef enum bfd_error
246 . bfd_error_no_error = 0,
247 . bfd_error_system_call,
248 . bfd_error_invalid_target,
249 . bfd_error_wrong_format,
250 . bfd_error_wrong_object_format,
251 . bfd_error_invalid_operation,
252 . bfd_error_no_memory,
253 . bfd_error_no_symbols,
254 . bfd_error_no_armap,
255 . bfd_error_no_more_archived_files,
256 . bfd_error_malformed_archive,
257 . bfd_error_file_not_recognized,
258 . bfd_error_file_ambiguously_recognized,
259 . bfd_error_no_contents,
260 . bfd_error_nonrepresentable_section,
261 . bfd_error_no_debug_section,
262 . bfd_error_bad_value,
263 . bfd_error_file_truncated,
264 . bfd_error_file_too_big,
265 . bfd_error_invalid_error_code
270 static bfd_error_type bfd_error
= bfd_error_no_error
;
272 const char *const bfd_errmsgs
[] =
275 N_("System call error"),
276 N_("Invalid bfd target"),
277 N_("File in wrong format"),
278 N_("Archive object file in wrong format"),
279 N_("Invalid operation"),
280 N_("Memory exhausted"),
282 N_("Archive has no index; run ranlib to add one"),
283 N_("No more archived files"),
284 N_("Malformed archive"),
285 N_("File format not recognized"),
286 N_("File format is ambiguous"),
287 N_("Section has no contents"),
288 N_("Nonrepresentable section on output"),
289 N_("Symbol needs debug section which does not exist"),
291 N_("File truncated"),
293 N_("#<Invalid error code>")
301 bfd_error_type bfd_get_error (void);
304 Return the current BFD error condition.
318 void bfd_set_error (bfd_error_type error_tag);
321 Set the BFD error condition to be @var{error_tag}.
325 bfd_set_error (error_tag
)
326 bfd_error_type error_tag
;
328 bfd_error
= error_tag
;
336 const char *bfd_errmsg (bfd_error_type error_tag);
339 Return a string describing the error @var{error_tag}, or
340 the system error if @var{error_tag} is <<bfd_error_system_call>>.
344 bfd_errmsg (error_tag
)
345 bfd_error_type error_tag
;
350 if (error_tag
== bfd_error_system_call
)
351 return xstrerror (errno
);
353 if ((((int) error_tag
< (int) bfd_error_no_error
) ||
354 ((int) error_tag
> (int) bfd_error_invalid_error_code
)))
355 error_tag
= bfd_error_invalid_error_code
;/* sanity check */
357 return _(bfd_errmsgs
[(int)error_tag
]);
365 void bfd_perror (const char *message);
368 Print to the standard error stream a string describing the
369 last BFD error that occurred, or the last system error if
370 the last BFD error was a system call failure. If @var{message}
371 is non-NULL and non-empty, the error string printed is preceded
372 by @var{message}, a colon, and a space. It is followed by a newline.
379 if (bfd_get_error () == bfd_error_system_call
)
380 /* Must be a system error then. */
381 perror ((char *)message
);
384 if (message
== NULL
|| *message
== '\0')
385 fprintf (stderr
, "%s\n", bfd_errmsg (bfd_get_error ()));
387 fprintf (stderr
, "%s: %s\n", message
, bfd_errmsg (bfd_get_error ()));
395 Some BFD functions want to print messages describing the
396 problem. They call a BFD error handler function. This
397 function may be overriden by the program.
399 The BFD error handler acts like printf.
403 .typedef void (*bfd_error_handler_type) PARAMS ((const char *, ...));
407 /* The program name used when printing BFD error messages. */
409 static const char *_bfd_error_program_name
;
411 /* This is the default routine to handle BFD error messages. */
413 #ifdef ANSI_PROTOTYPES
415 static void _bfd_default_error_handler
PARAMS ((const char *s
, ...));
418 _bfd_default_error_handler (const char *s
, ...)
422 if (_bfd_error_program_name
!= NULL
)
423 fprintf (stderr
, "%s: ", _bfd_error_program_name
);
425 fprintf (stderr
, "BFD: ");
429 vfprintf (stderr
, s
, p
);
433 fprintf (stderr
, "\n");
436 #else /* ! defined (ANSI_PROTOTYPES) */
438 static void _bfd_default_error_handler ();
441 _bfd_default_error_handler (va_alist
)
447 if (_bfd_error_program_name
!= NULL
)
448 fprintf (stderr
, "%s: ", _bfd_error_program_name
);
450 fprintf (stderr
, "BFD: ");
454 s
= va_arg (p
, const char *);
455 vfprintf (stderr
, s
, p
);
459 fprintf (stderr
, "\n");
462 #endif /* ! defined (ANSI_PROTOTYPES) */
464 /* This is a function pointer to the routine which should handle BFD
465 error messages. It is called when a BFD routine encounters an
466 error for which it wants to print a message. Going through a
467 function pointer permits a program linked against BFD to intercept
468 the messages and deal with them itself. */
470 bfd_error_handler_type _bfd_error_handler
= _bfd_default_error_handler
;
474 bfd_set_error_handler
477 bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type);
480 Set the BFD error handler function. Returns the previous
484 bfd_error_handler_type
485 bfd_set_error_handler (pnew
)
486 bfd_error_handler_type pnew
;
488 bfd_error_handler_type pold
;
490 pold
= _bfd_error_handler
;
491 _bfd_error_handler
= pnew
;
497 bfd_set_error_program_name
500 void bfd_set_error_program_name (const char *);
503 Set the program name to use when printing a BFD error. This
504 is printed before the error message followed by a colon and
505 space. The string must not be changed after it is passed to
510 bfd_set_error_program_name (name
)
513 _bfd_error_program_name
= name
;
518 bfd_get_error_handler
521 bfd_error_handler_type bfd_get_error_handler (void);
524 Return the BFD error handler function.
527 bfd_error_handler_type
528 bfd_get_error_handler ()
530 return _bfd_error_handler
;
538 const char *bfd_archive_filename (bfd *);
541 For a BFD that is a component of an archive, returns a string
542 with both the archive name and file name. For other BFDs, just
543 returns the file name.
547 bfd_archive_filename (abfd
)
550 if (abfd
->my_archive
)
552 static size_t curr
= 0;
556 needed
= (strlen (bfd_get_filename (abfd
->my_archive
))
557 + strlen (bfd_get_filename (abfd
)) + 3);
562 curr
= needed
+ (needed
>> 1);
563 buf
= bfd_malloc (curr
);
564 /* If we can't malloc, fail safe by returning just the file
565 name. This function is only used when building error
570 return bfd_get_filename (abfd
);
573 sprintf (buf
, "%s(%s)", bfd_get_filename (abfd
->my_archive
),
574 bfd_get_filename (abfd
));
578 return bfd_get_filename (abfd
);
588 bfd_get_reloc_upper_bound
591 long bfd_get_reloc_upper_bound(bfd *abfd, asection *sect);
594 Return the number of bytes required to store the
595 relocation information associated with section @var{sect}
596 attached to bfd @var{abfd}. If an error occurs, return -1.
601 bfd_get_reloc_upper_bound (abfd
, asect
)
605 if (abfd
->format
!= bfd_object
)
607 bfd_set_error (bfd_error_invalid_operation
);
611 return BFD_SEND (abfd
, _get_reloc_upper_bound
, (abfd
, asect
));
616 bfd_canonicalize_reloc
619 long bfd_canonicalize_reloc
626 Call the back end associated with the open BFD
627 @var{abfd} and translate the external form of the relocation
628 information attached to @var{sec} into the internal canonical
629 form. Place the table into memory at @var{loc}, which has
630 been preallocated, usually by a call to
631 <<bfd_get_reloc_upper_bound>>. Returns the number of relocs, or
634 The @var{syms} table is also needed for horrible internal magic
639 bfd_canonicalize_reloc (abfd
, asect
, location
, symbols
)
645 if (abfd
->format
!= bfd_object
)
647 bfd_set_error (bfd_error_invalid_operation
);
651 return BFD_SEND (abfd
, _bfd_canonicalize_reloc
,
652 (abfd
, asect
, location
, symbols
));
661 (bfd *abfd, asection *sec, arelent **rel, unsigned int count)
664 Set the relocation pointer and count within
665 section @var{sec} to the values @var{rel} and @var{count}.
666 The argument @var{abfd} is ignored.
671 bfd_set_reloc (ignore_abfd
, asect
, location
, count
)
672 bfd
*ignore_abfd ATTRIBUTE_UNUSED
;
677 asect
->orelocation
= location
;
678 asect
->reloc_count
= count
;
686 boolean bfd_set_file_flags(bfd *abfd, flagword flags);
689 Set the flag word in the BFD @var{abfd} to the value @var{flags}.
692 o <<bfd_error_wrong_format>> - The target bfd was not of object format.
693 o <<bfd_error_invalid_operation>> - The target bfd was open for reading.
694 o <<bfd_error_invalid_operation>> -
695 The flag word contained a bit which was not applicable to the
696 type of file. E.g., an attempt was made to set the <<D_PAGED>> bit
697 on a BFD format which does not support demand paging.
702 bfd_set_file_flags (abfd
, flags
)
706 if (abfd
->format
!= bfd_object
)
708 bfd_set_error (bfd_error_wrong_format
);
712 if (bfd_read_p (abfd
))
714 bfd_set_error (bfd_error_invalid_operation
);
718 bfd_get_file_flags (abfd
) = flags
;
719 if ((flags
& bfd_applicable_file_flags (abfd
)) != flags
)
721 bfd_set_error (bfd_error_invalid_operation
);
729 bfd_assert (file
, line
)
733 (*_bfd_error_handler
) (_("bfd assertion fail %s:%d"), file
, line
);
736 /* A more or less friendly abort message. In libbfd.h abort is
737 defined to call this function. */
740 #define EXIT_FAILURE 1
744 _bfd_abort (file
, line
, fn
)
750 (*_bfd_error_handler
)
751 (_("BFD internal error, aborting at %s line %d in %s\n"),
754 (*_bfd_error_handler
)
755 (_("BFD internal error, aborting at %s line %d\n"),
757 (*_bfd_error_handler
) (_("Please report this bug.\n"));
758 xexit (EXIT_FAILURE
);
766 int bfd_get_arch_size (bfd *abfd);
769 Returns the architecture address size, in bits, as determined
770 by the object file's format. For ELF, this information is
771 included in the header.
774 Returns the arch size in bits if known, <<-1>> otherwise.
778 bfd_get_arch_size (abfd
)
781 if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
782 return (get_elf_backend_data (abfd
))->s
->arch_size
;
784 bfd_set_error (bfd_error_wrong_format
);
790 bfd_get_sign_extend_vma
793 int bfd_get_sign_extend_vma (bfd *abfd);
796 Indicates if the target architecture "naturally" sign extends
797 an address. Some architectures implicitly sign extend address
798 values when they are converted to types larger than the size
799 of an address. For instance, bfd_get_start_address() will
800 return an address sign extended to fill a bfd_vma when this is
804 Returns <<1>> if the target architecture is known to sign
805 extend addresses, <<0>> if the target architecture is known to
806 not sign extend addresses, and <<-1>> otherwise.
810 bfd_get_sign_extend_vma (abfd
)
815 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
816 return (get_elf_backend_data (abfd
)->sign_extend_vma
);
818 name
= bfd_get_target (abfd
);
820 /* Return a proper value for DJGPP COFF (an x86 COFF variant).
821 This function is required for DWARF2 support, but there is
822 no place to store this information in the COFF back end.
823 Should enough other COFF targets add support for DWARF2,
824 a place will have to be found. Until then, this hack will do. */
825 if (strncmp (name
, "coff-go32", sizeof ("coff-go32") - 1) == 0)
828 bfd_set_error (bfd_error_wrong_format
);
834 bfd_set_start_address
837 boolean bfd_set_start_address(bfd *abfd, bfd_vma vma);
840 Make @var{vma} the entry point of output BFD @var{abfd}.
843 Returns <<true>> on success, <<false>> otherwise.
847 bfd_set_start_address (abfd
, vma
)
851 abfd
->start_address
= vma
;
860 long bfd_get_mtime(bfd *abfd);
863 Return the file modification time (as read from the file system, or
864 from the archive header for archive members).
878 fp
= bfd_cache_lookup (abfd
);
879 if (0 != fstat (fileno (fp
), &buf
))
882 abfd
->mtime
= buf
.st_mtime
; /* Save value in case anyone wants it */
891 long bfd_get_size(bfd *abfd);
894 Return the file size (as read from file system) for the file
895 associated with BFD @var{abfd}.
897 The initial motivation for, and use of, this routine is not
898 so we can get the exact size of the object the BFD applies to, since
899 that might not be generally possible (archive members for example).
900 It would be ideal if someone could eventually modify
901 it so that such results were guaranteed.
903 Instead, we want to ask questions like "is this NNN byte sized
904 object I'm about to try read from file offset YYY reasonable?"
905 As as example of where we might do this, some object formats
906 use string tables for which the first <<sizeof (long)>> bytes of the
907 table contain the size of the table itself, including the size bytes.
908 If an application tries to read what it thinks is one of these
909 string tables, without some way to validate the size, and for
910 some reason the size is wrong (byte swapping error, wrong location
911 for the string table, etc.), the only clue is likely to be a read
912 error when it tries to read the table, or a "virtual memory
913 exhausted" error when it tries to allocate 15 bazillon bytes
914 of space for the 15 bazillon byte table it is about to read.
915 This function at least allows us to answer the quesion, "is the
926 if ((abfd
->flags
& BFD_IN_MEMORY
) != 0)
927 return ((struct bfd_in_memory
*) abfd
->iostream
)->size
;
929 fp
= bfd_cache_lookup (abfd
);
930 if (0 != fstat (fileno (fp
), & buf
))
941 unsigned int bfd_get_gp_size(bfd *abfd);
944 Return the maximum size of objects to be optimized using the GP
945 register under MIPS ECOFF. This is typically set by the <<-G>>
946 argument to the compiler, assembler or linker.
950 bfd_get_gp_size (abfd
)
953 if (abfd
->format
== bfd_object
)
955 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
956 return ecoff_data (abfd
)->gp_size
;
957 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
958 return elf_gp_size (abfd
);
968 void bfd_set_gp_size(bfd *abfd, unsigned int i);
971 Set the maximum size of objects to be optimized using the GP
972 register under ECOFF or MIPS ELF. This is typically set by
973 the <<-G>> argument to the compiler, assembler or linker.
977 bfd_set_gp_size (abfd
, i
)
981 /* Don't try to set GP size on an archive or core file! */
982 if (abfd
->format
!= bfd_object
)
985 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
986 ecoff_data (abfd
)->gp_size
= i
;
987 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
988 elf_gp_size (abfd
) = i
;
991 /* Get the GP value. This is an internal function used by some of the
992 relocation special_function routines on targets which support a GP
996 _bfd_get_gp_value (abfd
)
999 if (abfd
->format
!= bfd_object
)
1002 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1003 return ecoff_data (abfd
)->gp
;
1004 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1005 return elf_gp (abfd
);
1010 /* Set the GP value. */
1013 _bfd_set_gp_value (abfd
, v
)
1017 if (abfd
->format
!= bfd_object
)
1020 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1021 ecoff_data (abfd
)->gp
= v
;
1022 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1031 bfd_vma bfd_scan_vma(const char *string, const char **end, int base);
1034 Convert, like <<strtoul>>, a numerical expression
1035 @var{string} into a <<bfd_vma>> integer, and return that integer.
1036 (Though without as many bells and whistles as <<strtoul>>.)
1037 The expression is assumed to be unsigned (i.e., positive).
1038 If given a @var{base}, it is used as the base for conversion.
1039 A base of 0 causes the function to interpret the string
1040 in hex if a leading "0x" or "0X" is found, otherwise
1041 in octal if a leading zero is found, otherwise in decimal.
1043 Overflow is not detected.
1047 bfd_scan_vma (string
, end
, base
)
1055 /* Let the host do it if possible. */
1056 if (sizeof (bfd_vma
) <= sizeof (unsigned long))
1057 return (bfd_vma
) strtoul (string
, (char **) end
, base
);
1059 /* A negative base makes no sense, and we only need to go as high as hex. */
1060 if ((base
< 0) || (base
> 16))
1065 if (string
[0] == '0')
1067 if ((string
[1] == 'x') || (string
[1] == 'X'))
1069 /* XXX should we also allow "0b" or "0B" to set base to 2? */
1078 (string
[0] == '0') && ((string
[1] == 'x') || (string
[1] == 'X')))
1080 /* XXX should we also skip over "0b" or "0B" if base is 2? */
1082 /* Speed could be improved with a table like hex_value[] in gas. */
1083 #define HEX_VALUE(c) \
1087 : (10 + c - (ISLOWER (c) ? 'a' : 'A'))) \
1090 for (value
= 0; (digit
= HEX_VALUE (* string
)) < base
; string
++)
1091 value
= value
* base
+ digit
;
1101 bfd_copy_private_bfd_data
1104 boolean bfd_copy_private_bfd_data(bfd *ibfd, bfd *obfd);
1107 Copy private BFD information from the BFD @var{ibfd} to the
1108 the BFD @var{obfd}. Return <<true>> on success, <<false>> on error.
1109 Possible error returns are:
1111 o <<bfd_error_no_memory>> -
1112 Not enough memory exists to create private data for @var{obfd}.
1114 .#define bfd_copy_private_bfd_data(ibfd, obfd) \
1115 . BFD_SEND (obfd, _bfd_copy_private_bfd_data, \
1122 bfd_merge_private_bfd_data
1125 boolean bfd_merge_private_bfd_data(bfd *ibfd, bfd *obfd);
1128 Merge private BFD information from the BFD @var{ibfd} to the
1129 the output file BFD @var{obfd} when linking. Return <<true>>
1130 on success, <<false>> on error. Possible error returns are:
1132 o <<bfd_error_no_memory>> -
1133 Not enough memory exists to create private data for @var{obfd}.
1135 .#define bfd_merge_private_bfd_data(ibfd, obfd) \
1136 . BFD_SEND (obfd, _bfd_merge_private_bfd_data, \
1143 bfd_set_private_flags
1146 boolean bfd_set_private_flags(bfd *abfd, flagword flags);
1149 Set private BFD flag information in the BFD @var{abfd}.
1150 Return <<true>> on success, <<false>> on error. Possible error
1153 o <<bfd_error_no_memory>> -
1154 Not enough memory exists to create private data for @var{obfd}.
1156 .#define bfd_set_private_flags(abfd, flags) \
1157 . BFD_SEND (abfd, _bfd_set_private_flags, \
1167 Stuff which should be documented:
1169 .#define bfd_sizeof_headers(abfd, reloc) \
1170 . BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc))
1172 .#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
1173 . BFD_SEND (abfd, _bfd_find_nearest_line, (abfd, sec, syms, off, file, func, line))
1175 . {* Do these three do anything useful at all, for any back end? *}
1176 .#define bfd_debug_info_start(abfd) \
1177 . BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
1179 .#define bfd_debug_info_end(abfd) \
1180 . BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
1182 .#define bfd_debug_info_accumulate(abfd, section) \
1183 . BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
1186 .#define bfd_stat_arch_elt(abfd, stat) \
1187 . BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
1189 .#define bfd_update_armap_timestamp(abfd) \
1190 . BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))
1192 .#define bfd_set_arch_mach(abfd, arch, mach)\
1193 . BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
1195 .#define bfd_relax_section(abfd, section, link_info, again) \
1196 . BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
1198 .#define bfd_gc_sections(abfd, link_info) \
1199 . BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info))
1201 .#define bfd_merge_sections(abfd, link_info) \
1202 . BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info))
1204 .#define bfd_link_hash_table_create(abfd) \
1205 . BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
1207 .#define bfd_link_add_symbols(abfd, info) \
1208 . BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
1210 .#define bfd_final_link(abfd, info) \
1211 . BFD_SEND (abfd, _bfd_final_link, (abfd, info))
1213 .#define bfd_free_cached_info(abfd) \
1214 . BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
1216 .#define bfd_get_dynamic_symtab_upper_bound(abfd) \
1217 . BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
1219 .#define bfd_print_private_bfd_data(abfd, file)\
1220 . BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file))
1222 .#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
1223 . BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
1225 .#define bfd_get_dynamic_reloc_upper_bound(abfd) \
1226 . BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
1228 .#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
1229 . BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
1231 .extern bfd_byte *bfd_get_relocated_section_contents
1232 . PARAMS ((bfd *, struct bfd_link_info *,
1233 . struct bfd_link_order *, bfd_byte *,
1234 . boolean, asymbol **));
1240 bfd_get_relocated_section_contents (abfd
, link_info
, link_order
, data
,
1241 relocateable
, symbols
)
1243 struct bfd_link_info
*link_info
;
1244 struct bfd_link_order
*link_order
;
1246 boolean relocateable
;
1250 bfd_byte
*(*fn
) PARAMS ((bfd
*, struct bfd_link_info
*,
1251 struct bfd_link_order
*, bfd_byte
*, boolean
,
1254 if (link_order
->type
== bfd_indirect_link_order
)
1256 abfd2
= link_order
->u
.indirect
.section
->owner
;
1263 fn
= abfd2
->xvec
->_bfd_get_relocated_section_contents
;
1265 return (*fn
) (abfd
, link_info
, link_order
, data
, relocateable
, symbols
);
1268 /* Record information about an ELF program header. */
1271 bfd_record_phdr (abfd
, type
, flags_valid
, flags
, at_valid
, at
,
1272 includes_filehdr
, includes_phdrs
, count
, secs
)
1275 boolean flags_valid
;
1279 boolean includes_filehdr
;
1280 boolean includes_phdrs
;
1284 struct elf_segment_map
*m
, **pm
;
1287 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1290 amt
= sizeof (struct elf_segment_map
);
1291 amt
+= ((bfd_size_type
) count
- 1) * sizeof (asection
*);
1292 m
= (struct elf_segment_map
*) bfd_alloc (abfd
, amt
);
1300 m
->p_flags_valid
= flags_valid
;
1301 m
->p_paddr_valid
= at_valid
;
1302 m
->includes_filehdr
= includes_filehdr
;
1303 m
->includes_phdrs
= includes_phdrs
;
1306 memcpy (m
->sections
, secs
, count
* sizeof (asection
*));
1308 for (pm
= &elf_tdata (abfd
)->segment_map
; *pm
!= NULL
; pm
= &(*pm
)->next
)
1316 bfd_sprintf_vma (abfd
, buf
, value
)
1321 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
1322 get_elf_backend_data (abfd
)->elf_backend_sprintf_vma (abfd
, buf
, value
);
1324 sprintf_vma (buf
, value
);
1328 bfd_fprintf_vma (abfd
, stream
, value
)
1333 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
1334 get_elf_backend_data (abfd
)->elf_backend_fprintf_vma (abfd
, stream
, value
);
1336 fprintf_vma ((FILE *) stream
, value
);
1344 boolean bfd_alt_mach_code(bfd *abfd, int index);
1348 When more than one machine code number is available for the
1349 same machine type, this function can be used to switch between
1350 the preferred one (index == 0) and any others. Currently,
1351 only ELF supports this feature, with up to two alternate
1356 bfd_alt_mach_code (abfd
, index
)
1360 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
1367 code
= get_elf_backend_data (abfd
)->elf_machine_code
;
1371 code
= get_elf_backend_data (abfd
)->elf_machine_alt1
;
1377 code
= get_elf_backend_data (abfd
)->elf_machine_alt2
;
1386 elf_elfheader (abfd
)->e_machine
= code
;