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 static void _bfd_default_error_handler PARAMS ((const char *s, ...));
416 _bfd_default_error_handler VPARAMS ((const char *s, ...))
418 if (_bfd_error_program_name != NULL)
419 fprintf (stderr, "%s: ", _bfd_error_program_name);
421 fprintf (stderr, "BFD: ");
424 VA_FIXEDARG (p, const char *, s);
425 vfprintf (stderr, s, p);
428 fprintf (stderr, "\n");
431 /* This is a function pointer to the routine which should handle BFD
432 error messages. It is called when a BFD routine encounters an
433 error for which it wants to print a message. Going through a
434 function pointer permits a program linked against BFD to intercept
435 the messages and deal with them itself. */
437 bfd_error_handler_type _bfd_error_handler = _bfd_default_error_handler;
441 bfd_set_error_handler
444 bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type);
447 Set the BFD error handler function. Returns the previous
451 bfd_error_handler_type
452 bfd_set_error_handler (pnew)
453 bfd_error_handler_type pnew;
455 bfd_error_handler_type pold;
457 pold = _bfd_error_handler;
458 _bfd_error_handler = pnew;
464 bfd_set_error_program_name
467 void bfd_set_error_program_name (const char *);
470 Set the program name to use when printing a BFD error. This
471 is printed before the error message followed by a colon and
472 space. The string must not be changed after it is passed to
477 bfd_set_error_program_name (name)
480 _bfd_error_program_name = name;
485 bfd_get_error_handler
488 bfd_error_handler_type bfd_get_error_handler (void);
491 Return the BFD error handler function.
494 bfd_error_handler_type
495 bfd_get_error_handler ()
497 return _bfd_error_handler;
505 const char *bfd_archive_filename (bfd *);
508 For a BFD that is a component of an archive, returns a string
509 with both the archive name and file name. For other BFDs, just
510 returns the file name.
514 bfd_archive_filename (abfd)
517 if (abfd->my_archive)
519 static size_t curr = 0;
523 needed = (strlen (bfd_get_filename (abfd->my_archive))
524 + strlen (bfd_get_filename (abfd)) + 3);
529 curr = needed + (needed >> 1);
530 buf = bfd_malloc ((bfd_size_type) curr);
531 /* If we can't malloc, fail safe by returning just the file
532 name. This function is only used when building error
537 return bfd_get_filename (abfd);
540 sprintf (buf, "%s(%s)", bfd_get_filename (abfd->my_archive),
541 bfd_get_filename (abfd));
545 return bfd_get_filename (abfd);
555 bfd_get_reloc_upper_bound
558 long bfd_get_reloc_upper_bound(bfd *abfd, asection *sect);
561 Return the number of bytes required to store the
562 relocation information associated with section @var{sect}
563 attached to bfd @var{abfd}. If an error occurs, return -1.
568 bfd_get_reloc_upper_bound (abfd, asect)
572 if (abfd->format != bfd_object)
574 bfd_set_error (bfd_error_invalid_operation);
578 return BFD_SEND (abfd, _get_reloc_upper_bound, (abfd, asect));
583 bfd_canonicalize_reloc
586 long bfd_canonicalize_reloc
593 Call the back end associated with the open BFD
594 @var{abfd} and translate the external form of the relocation
595 information attached to @var{sec} into the internal canonical
596 form. Place the table into memory at @var{loc}, which has
597 been preallocated, usually by a call to
598 <<bfd_get_reloc_upper_bound>>. Returns the number of relocs, or
601 The @var{syms} table is also needed for horrible internal magic
606 bfd_canonicalize_reloc (abfd, asect, location, symbols)
612 if (abfd->format != bfd_object)
614 bfd_set_error (bfd_error_invalid_operation);
618 return BFD_SEND (abfd, _bfd_canonicalize_reloc,
619 (abfd, asect, location, symbols));
628 (bfd *abfd, asection *sec, arelent **rel, unsigned int count)
631 Set the relocation pointer and count within
632 section @var{sec} to the values @var{rel} and @var{count}.
633 The argument @var{abfd} is ignored.
638 bfd_set_reloc (ignore_abfd, asect, location, count)
639 bfd *ignore_abfd ATTRIBUTE_UNUSED;
644 asect->orelocation = location;
645 asect->reloc_count = count;
653 boolean bfd_set_file_flags(bfd *abfd, flagword flags);
656 Set the flag word in the BFD @var{abfd} to the value @var{flags}.
659 o <<bfd_error_wrong_format>> - The target bfd was not of object format.
660 o <<bfd_error_invalid_operation>> - The target bfd was open for reading.
661 o <<bfd_error_invalid_operation>> -
662 The flag word contained a bit which was not applicable to the
663 type of file. E.g., an attempt was made to set the <<D_PAGED>> bit
664 on a BFD format which does not support demand paging.
669 bfd_set_file_flags (abfd, flags)
673 if (abfd->format != bfd_object)
675 bfd_set_error (bfd_error_wrong_format);
679 if (bfd_read_p (abfd))
681 bfd_set_error (bfd_error_invalid_operation);
685 bfd_get_file_flags (abfd) = flags;
686 if ((flags & bfd_applicable_file_flags (abfd)) != flags)
688 bfd_set_error (bfd_error_invalid_operation);
696 bfd_assert (file, line)
700 (*_bfd_error_handler) (_("BFD %s assertion fail %s:%d"),
701 BFD_VERSION_STRING, file, line);
704 /* A more or less friendly abort message. In libbfd.h abort is
705 defined to call this function. */
708 #define EXIT_FAILURE 1
712 _bfd_abort (file, line, fn)
718 (*_bfd_error_handler)
719 (_("BFD %s internal error, aborting at %s line %d in %s\n"),
720 BFD_VERSION_STRING, file, line, fn);
722 (*_bfd_error_handler)
723 (_("BFD %sinternal error, aborting at %s line %d\n"),
724 BFD_VERSION_STRING, file, line);
725 (*_bfd_error_handler) (_("Please report this bug.\n"));
726 xexit (EXIT_FAILURE);
734 int bfd_get_arch_size (bfd *abfd);
737 Returns the architecture address size, in bits, as determined
738 by the object file's format. For ELF, this information is
739 included in the header.
742 Returns the arch size in bits if known, <<-1>> otherwise.
746 bfd_get_arch_size (abfd)
749 if (abfd->xvec->flavour == bfd_target_elf_flavour)
750 return (get_elf_backend_data (abfd))->s->arch_size;
752 bfd_set_error (bfd_error_wrong_format);
758 bfd_get_sign_extend_vma
761 int bfd_get_sign_extend_vma (bfd *abfd);
764 Indicates if the target architecture "naturally" sign extends
765 an address. Some architectures implicitly sign extend address
766 values when they are converted to types larger than the size
767 of an address. For instance, bfd_get_start_address() will
768 return an address sign extended to fill a bfd_vma when this is
772 Returns <<1>> if the target architecture is known to sign
773 extend addresses, <<0>> if the target architecture is known to
774 not sign extend addresses, and <<-1>> otherwise.
778 bfd_get_sign_extend_vma (abfd)
783 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
784 return (get_elf_backend_data (abfd)->sign_extend_vma);
786 name = bfd_get_target (abfd);
788 /* Return a proper value for DJGPP COFF (an x86 COFF variant).
789 This function is required for DWARF2 support, but there is
790 no place to store this information in the COFF back end.
791 Should enough other COFF targets add support for DWARF2,
792 a place will have to be found. Until then, this hack will do. */
793 if (strncmp (name, "coff-go32", sizeof ("coff-go32") - 1) == 0)
796 bfd_set_error (bfd_error_wrong_format);
802 bfd_set_start_address
805 boolean bfd_set_start_address(bfd *abfd, bfd_vma vma);
808 Make @var{vma} the entry point of output BFD @var{abfd}.
811 Returns <<true>> on success, <<false>> otherwise.
815 bfd_set_start_address (abfd, vma)
819 abfd->start_address = vma;
828 long bfd_get_mtime(bfd *abfd);
831 Return the file modification time (as read from the file system, or
832 from the archive header for archive members).
846 fp = bfd_cache_lookup (abfd);
847 if (0 != fstat (fileno (fp), &buf))
850 abfd->mtime = buf.st_mtime; /* Save value in case anyone wants it */
859 long bfd_get_size(bfd *abfd);
862 Return the file size (as read from file system) for the file
863 associated with BFD @var{abfd}.
865 The initial motivation for, and use of, this routine is not
866 so we can get the exact size of the object the BFD applies to, since
867 that might not be generally possible (archive members for example).
868 It would be ideal if someone could eventually modify
869 it so that such results were guaranteed.
871 Instead, we want to ask questions like "is this NNN byte sized
872 object I'm about to try read from file offset YYY reasonable?"
873 As as example of where we might do this, some object formats
874 use string tables for which the first <<sizeof (long)>> bytes of the
875 table contain the size of the table itself, including the size bytes.
876 If an application tries to read what it thinks is one of these
877 string tables, without some way to validate the size, and for
878 some reason the size is wrong (byte swapping error, wrong location
879 for the string table, etc.), the only clue is likely to be a read
880 error when it tries to read the table, or a "virtual memory
881 exhausted" error when it tries to allocate 15 bazillon bytes
882 of space for the 15 bazillon byte table it is about to read.
883 This function at least allows us to answer the quesion, "is the
894 if ((abfd->flags & BFD_IN_MEMORY) != 0)
895 return ((struct bfd_in_memory *) abfd->iostream)->size;
897 fp = bfd_cache_lookup (abfd);
898 if (0 != fstat (fileno (fp), & buf))
909 unsigned int bfd_get_gp_size(bfd *abfd);
912 Return the maximum size of objects to be optimized using the GP
913 register under MIPS ECOFF. This is typically set by the <<-G>>
914 argument to the compiler, assembler or linker.
918 bfd_get_gp_size (abfd)
921 if (abfd->format == bfd_object)
923 if (abfd->xvec->flavour == bfd_target_ecoff_flavour)
924 return ecoff_data (abfd)->gp_size;
925 else if (abfd->xvec->flavour == bfd_target_elf_flavour)
926 return elf_gp_size (abfd);
936 void bfd_set_gp_size(bfd *abfd, unsigned int i);
939 Set the maximum size of objects to be optimized using the GP
940 register under ECOFF or MIPS ELF. This is typically set by
941 the <<-G>> argument to the compiler, assembler or linker.
945 bfd_set_gp_size (abfd, i)
949 /* Don't try to set GP size on an archive or core file! */
950 if (abfd->format != bfd_object)
953 if (abfd->xvec->flavour == bfd_target_ecoff_flavour)
954 ecoff_data (abfd)->gp_size = i;
955 else if (abfd->xvec->flavour == bfd_target_elf_flavour)
956 elf_gp_size (abfd) = i;
959 /* Get the GP value. This is an internal function used by some of the
960 relocation special_function routines on targets which support a GP
964 _bfd_get_gp_value (abfd)
967 if (abfd->format != bfd_object)
970 if (abfd->xvec->flavour == bfd_target_ecoff_flavour)
971 return ecoff_data (abfd)->gp;
972 else if (abfd->xvec->flavour == bfd_target_elf_flavour)
973 return elf_gp (abfd);
978 /* Set the GP value. */
981 _bfd_set_gp_value (abfd, v)
985 if (abfd->format != bfd_object)
988 if (abfd->xvec->flavour == bfd_target_ecoff_flavour)
989 ecoff_data (abfd)->gp = v;
990 else if (abfd->xvec->flavour == bfd_target_elf_flavour)
999 bfd_vma bfd_scan_vma(const char *string, const char **end, int base);
1002 Convert, like <<strtoul>>, a numerical expression
1003 @var{string} into a <<bfd_vma>> integer, and return that integer.
1004 (Though without as many bells and whistles as <<strtoul>>.)
1005 The expression is assumed to be unsigned (i.e., positive).
1006 If given a @var{base}, it is used as the base for conversion.
1007 A base of 0 causes the function to interpret the string
1008 in hex if a leading "0x" or "0X" is found, otherwise
1009 in octal if a leading zero is found, otherwise in decimal.
1011 Overflow is not detected.
1015 bfd_scan_vma (string, end, base)
1023 /* Let the host do it if possible. */
1024 if (sizeof (bfd_vma) <= sizeof (unsigned long))
1025 return (bfd_vma) strtoul (string, (char **) end, base);
1027 /* A negative base makes no sense, and we only need to go as high as hex. */
1028 if ((base < 0) || (base > 16))
1033 if (string[0] == '0')
1035 if ((string[1] == 'x') || (string[1] == 'X'))
1037 /* XXX should we also allow "0b" or "0B" to set base to 2? */
1046 (string[0] == '0') && ((string[1] == 'x') || (string[1] == 'X')))
1048 /* XXX should we also skip over "0b" or "0B" if base is 2? */
1050 /* Speed could be improved with a table like hex_value[] in gas. */
1051 #define HEX_VALUE(c) \
1055 : (10 + c - (ISLOWER (c) ? 'a' : 'A'))) \
1058 for (value = 0; (digit = HEX_VALUE (* string)) < base; string ++)
1059 value = value * base + digit;
1069 bfd_copy_private_bfd_data
1072 boolean bfd_copy_private_bfd_data(bfd *ibfd, bfd *obfd);
1075 Copy private BFD information from the BFD @var{ibfd} to the
1076 the BFD @var{obfd}. Return <<true>> on success, <<false>> on error.
1077 Possible error returns are:
1079 o <<bfd_error_no_memory>> -
1080 Not enough memory exists to create private data for @var{obfd}.
1082 .#define bfd_copy_private_bfd_data(ibfd, obfd) \
1083 . BFD_SEND (obfd, _bfd_copy_private_bfd_data, \
1090 bfd_merge_private_bfd_data
1093 boolean bfd_merge_private_bfd_data(bfd *ibfd, bfd *obfd);
1096 Merge private BFD information from the BFD @var{ibfd} to the
1097 the output file BFD @var{obfd} when linking. Return <<true>>
1098 on success, <<false>> on error. Possible error returns are:
1100 o <<bfd_error_no_memory>> -
1101 Not enough memory exists to create private data for @var{obfd}.
1103 .#define bfd_merge_private_bfd_data(ibfd, obfd) \
1104 . BFD_SEND (obfd, _bfd_merge_private_bfd_data, \
1111 bfd_set_private_flags
1114 boolean bfd_set_private_flags(bfd *abfd, flagword flags);
1117 Set private BFD flag information in the BFD @var{abfd}.
1118 Return <<true>> on success, <<false>> on error. Possible error
1121 o <<bfd_error_no_memory>> -
1122 Not enough memory exists to create private data for @var{obfd}.
1124 .#define bfd_set_private_flags(abfd, flags) \
1125 . BFD_SEND (abfd, _bfd_set_private_flags, \
1135 Stuff which should be documented:
1137 .#define bfd_sizeof_headers(abfd, reloc) \
1138 . BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc))
1140 .#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
1141 . BFD_SEND (abfd, _bfd_find_nearest_line, (abfd, sec, syms, off, file, func, line))
1143 . {* Do these three do anything useful at all, for any back end? *}
1144 .#define bfd_debug_info_start(abfd) \
1145 . BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
1147 .#define bfd_debug_info_end(abfd) \
1148 . BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
1150 .#define bfd_debug_info_accumulate(abfd, section) \
1151 . BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
1154 .#define bfd_stat_arch_elt(abfd, stat) \
1155 . BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
1157 .#define bfd_update_armap_timestamp(abfd) \
1158 . BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))
1160 .#define bfd_set_arch_mach(abfd, arch, mach)\
1161 . BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
1163 .#define bfd_relax_section(abfd, section, link_info, again) \
1164 . BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
1166 .#define bfd_gc_sections(abfd, link_info) \
1167 . BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info))
1169 .#define bfd_merge_sections(abfd, link_info) \
1170 . BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info))
1172 .#define bfd_link_hash_table_create(abfd) \
1173 . BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
1175 .#define bfd_link_add_symbols(abfd, info) \
1176 . BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
1178 .#define bfd_final_link(abfd, info) \
1179 . BFD_SEND (abfd, _bfd_final_link, (abfd, info))
1181 .#define bfd_free_cached_info(abfd) \
1182 . BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
1184 .#define bfd_get_dynamic_symtab_upper_bound(abfd) \
1185 . BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
1187 .#define bfd_print_private_bfd_data(abfd, file)\
1188 . BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file))
1190 .#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
1191 . BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
1193 .#define bfd_get_dynamic_reloc_upper_bound(abfd) \
1194 . BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
1196 .#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
1197 . BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
1199 .extern bfd_byte *bfd_get_relocated_section_contents
1200 . PARAMS ((bfd *, struct bfd_link_info *,
1201 . struct bfd_link_order *, bfd_byte *,
1202 . boolean, asymbol **));
1208 bfd_get_relocated_section_contents (abfd, link_info, link_order, data,
1209 relocateable, symbols)
1211 struct bfd_link_info *link_info;
1212 struct bfd_link_order *link_order;
1214 boolean relocateable;
1218 bfd_byte *(*fn) PARAMS ((bfd *, struct bfd_link_info *,
1219 struct bfd_link_order *, bfd_byte *, boolean,
1222 if (link_order->type == bfd_indirect_link_order)
1224 abfd2 = link_order->u.indirect.section->owner;
1231 fn = abfd2->xvec->_bfd_get_relocated_section_contents;
1233 return (*fn) (abfd, link_info, link_order, data, relocateable, symbols);
1236 /* Record information about an ELF program header. */
1239 bfd_record_phdr (abfd, type, flags_valid, flags, at_valid, at,
1240 includes_filehdr, includes_phdrs, count, secs)
1243 boolean flags_valid;
1247 boolean includes_filehdr;
1248 boolean includes_phdrs;
1252 struct elf_segment_map *m, **pm;
1255 if (bfd_get_flavour (abfd) != bfd_target_elf_flavour)
1258 amt = sizeof (struct elf_segment_map);
1259 amt += ((bfd_size_type) count - 1) * sizeof (asection *);
1260 m = (struct elf_segment_map *) bfd_alloc (abfd, amt);
1268 m->p_flags_valid = flags_valid;
1269 m->p_paddr_valid = at_valid;
1270 m->includes_filehdr = includes_filehdr;
1271 m->includes_phdrs = includes_phdrs;
1274 memcpy (m->sections, secs, count * sizeof (asection *));
1276 for (pm = &elf_tdata (abfd)->segment_map; *pm != NULL; pm = &(*pm)->next)
1284 bfd_sprintf_vma (abfd, buf, value)
1289 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
1290 get_elf_backend_data (abfd)->elf_backend_sprintf_vma (abfd, buf, value);
1292 sprintf_vma (buf, value);
1296 bfd_fprintf_vma (abfd, stream, value)
1301 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
1302 get_elf_backend_data (abfd)->elf_backend_fprintf_vma (abfd, stream, value);
1304 fprintf_vma ((FILE *) stream, value);
1312 boolean bfd_alt_mach_code(bfd *abfd, int index);
1316 When more than one machine code number is available for the
1317 same machine type, this function can be used to switch between
1318 the preferred one (index == 0) and any others. Currently,
1319 only ELF supports this feature, with up to two alternate
1324 bfd_alt_mach_code (abfd, index)
1328 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
1335 code = get_elf_backend_data (abfd)->elf_machine_code;
1339 code = get_elf_backend_data (abfd)->elf_machine_alt1;
1345 code = get_elf_backend_data (abfd)->elf_machine_alt2;
1354 elf_elfheader (abfd)->e_machine = code;