1 /* Generic BFD library interface and support routines.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
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 3 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., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
28 A BFD has type <<bfd>>; objects of this type are the
29 cornerstone of any application using BFD. Using BFD
30 consists of making references though the BFD and to data in the BFD.
32 Here is the structure that defines the type <<bfd>>. It
33 contains the major data about the file and pointers
34 to the rest of the data.
42 . write_direction = 2,
48 . {* A unique identifier of the BFD *}
51 . {* The filename the application opened the BFD with. *}
52 . const char *filename;
54 . {* A pointer to the target jump table. *}
55 . const struct bfd_target *xvec;
57 . {* The IOSTREAM, and corresponding IO vector that provide access
58 . to the file backing the BFD. *}
60 . const struct bfd_iovec *iovec;
62 . {* The caching routines use these to maintain a
63 . least-recently-used list of BFDs. *}
64 . struct bfd *lru_prev, *lru_next;
66 . {* When a file is closed by the caching routines, BFD retains
67 . state information on the file here... *}
70 . {* File modified time, if mtime_set is TRUE. *}
73 . {* Reserved for an unimplemented file locking extension. *}
76 . {* The format which belongs to the BFD. (object, core, etc.) *}
79 . {* The direction with which the BFD was opened. *}
80 . enum bfd_direction direction;
82 . {* Format_specific flags. *}
85 . {* Values that may appear in the flags field of a BFD. These also
86 . appear in the object_flags field of the bfd_target structure, where
87 . they indicate the set of flags used by that backend (not all flags
88 . are meaningful for all object file formats) (FIXME: at the moment,
89 . the object_flags values have mostly just been copied from backend
90 . to another, and are not necessarily correct). *}
92 .#define BFD_NO_FLAGS 0x00
94 . {* BFD contains relocation entries. *}
95 .#define HAS_RELOC 0x01
97 . {* BFD is directly executable. *}
100 . {* BFD has line number information (basically used for F_LNNO in a
102 .#define HAS_LINENO 0x04
104 . {* BFD has debugging information. *}
105 .#define HAS_DEBUG 0x08
107 . {* BFD has symbols. *}
108 .#define HAS_SYMS 0x10
110 . {* BFD has local symbols (basically used for F_LSYMS in a COFF
112 .#define HAS_LOCALS 0x20
114 . {* BFD is a dynamic object. *}
115 .#define DYNAMIC 0x40
117 . {* Text section is write protected (if D_PAGED is not set, this is
118 . like an a.out NMAGIC file) (the linker sets this by default, but
119 . clears it for -r or -N). *}
120 .#define WP_TEXT 0x80
122 . {* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the
123 . linker sets this by default, but clears it for -r or -n or -N). *}
124 .#define D_PAGED 0x100
126 . {* BFD is relaxable (this means that bfd_relax_section may be able to
127 . do something) (sometimes bfd_relax_section can do something even if
128 . this is not set). *}
129 .#define BFD_IS_RELAXABLE 0x200
131 . {* This may be set before writing out a BFD to request using a
132 . traditional format. For example, this is used to request that when
133 . writing out an a.out object the symbols not be hashed to eliminate
135 .#define BFD_TRADITIONAL_FORMAT 0x400
137 . {* This flag indicates that the BFD contents are actually cached
138 . in memory. If this is set, iostream points to a bfd_in_memory
140 .#define BFD_IN_MEMORY 0x800
142 . {* The sections in this BFD specify a memory page. *}
143 .#define HAS_LOAD_PAGE 0x1000
145 . {* This BFD has been created by the linker and doesn't correspond
146 . to any input file. *}
147 .#define BFD_LINKER_CREATED 0x2000
149 . {* This may be set before writing out a BFD to request that it
150 . be written using values for UIDs, GIDs, timestamps, etc. that
151 . will be consistent from run to run. *}
152 .#define BFD_DETERMINISTIC_OUTPUT 0x4000
154 . {* Compress sections in this BFD. *}
155 .#define BFD_COMPRESS 0x8000
157 . {* Decompress sections in this BFD. *}
158 .#define BFD_DECOMPRESS 0x10000
160 . {* BFD is a dummy, for plugins. *}
161 .#define BFD_PLUGIN 0x20000
163 . {* Flags bits to be saved in bfd_preserve_save. *}
164 .#define BFD_FLAGS_SAVED \
165 . (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_PLUGIN)
167 . {* Flags bits which are for BFD use only. *}
168 .#define BFD_FLAGS_FOR_BFD_USE_MASK \
169 . (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_LINKER_CREATED \
170 . | BFD_PLUGIN | BFD_TRADITIONAL_FORMAT | BFD_DETERMINISTIC_OUTPUT)
172 . {* Currently my_archive is tested before adding origin to
173 . anything. I believe that this can become always an add of
174 . origin, with origin set to 0 for non archive files. *}
177 . {* The origin in the archive of the proxy entry. This will
178 . normally be the same as origin, except for thin archives,
179 . when it will contain the current offset of the proxy in the
180 . thin archive rather than the offset of the bfd in its actual
182 . ufile_ptr proxy_origin;
184 . {* A hash table for section names. *}
185 . struct bfd_hash_table section_htab;
187 . {* Pointer to linked list of sections. *}
188 . struct bfd_section *sections;
190 . {* The last section on the section list. *}
191 . struct bfd_section *section_last;
193 . {* The number of sections. *}
194 . unsigned int section_count;
196 . {* Stuff only useful for object files:
197 . The start address. *}
198 . bfd_vma start_address;
200 . {* Used for input and output. *}
201 . unsigned int symcount;
203 . {* Symbol table for output BFD (with symcount entries).
204 . Also used by the linker to cache input BFD symbols. *}
205 . struct bfd_symbol **outsymbols;
207 . {* Used for slurped dynamic symbol tables. *}
208 . unsigned int dynsymcount;
210 . {* Pointer to structure which contains architecture information. *}
211 . const struct bfd_arch_info *arch_info;
213 . {* Stuff only useful for archives. *}
215 . struct bfd *my_archive; {* The containing archive BFD. *}
216 . struct bfd *archive_next; {* The next BFD in the archive. *}
217 . struct bfd *archive_head; {* The first BFD in the archive. *}
218 . struct bfd *nested_archives; {* List of nested archive in a flattened
221 . {* A chain of BFD structures involved in a link. *}
222 . struct bfd *link_next;
224 . {* A field used by _bfd_generic_link_add_archive_symbols. This will
225 . be used only for archive elements. *}
228 . {* Used by the back end to hold private data. *}
231 . struct aout_data_struct *aout_data;
232 . struct artdata *aout_ar_data;
233 . struct _oasys_data *oasys_obj_data;
234 . struct _oasys_ar_data *oasys_ar_data;
235 . struct coff_tdata *coff_obj_data;
236 . struct pe_tdata *pe_obj_data;
237 . struct xcoff_tdata *xcoff_obj_data;
238 . struct ecoff_tdata *ecoff_obj_data;
239 . struct ieee_data_struct *ieee_data;
240 . struct ieee_ar_data_struct *ieee_ar_data;
241 . struct srec_data_struct *srec_data;
242 . struct verilog_data_struct *verilog_data;
243 . struct ihex_data_struct *ihex_data;
244 . struct tekhex_data_struct *tekhex_data;
245 . struct elf_obj_tdata *elf_obj_data;
246 . struct nlm_obj_tdata *nlm_obj_data;
247 . struct bout_data_struct *bout_data;
248 . struct mmo_data_struct *mmo_data;
249 . struct sun_core_struct *sun_core_data;
250 . struct sco5_core_struct *sco5_core_data;
251 . struct trad_core_struct *trad_core_data;
252 . struct som_data_struct *som_data;
253 . struct hpux_core_struct *hpux_core_data;
254 . struct hppabsd_core_struct *hppabsd_core_data;
255 . struct sgi_core_struct *sgi_core_data;
256 . struct lynx_core_struct *lynx_core_data;
257 . struct osf_core_struct *osf_core_data;
258 . struct cisco_core_struct *cisco_core_data;
259 . struct versados_data_struct *versados_data;
260 . struct netbsd_core_struct *netbsd_core_data;
261 . struct mach_o_data_struct *mach_o_data;
262 . struct mach_o_fat_data_struct *mach_o_fat_data;
263 . struct plugin_data_struct *plugin_data;
264 . struct bfd_pef_data_struct *pef_data;
265 . struct bfd_pef_xlib_data_struct *pef_xlib_data;
266 . struct bfd_sym_data_struct *sym_data;
271 . {* Used by the application to hold private data. *}
274 . {* Where all the allocated stuff under this BFD goes. This is a
275 . struct objalloc *, but we use void * to avoid requiring the inclusion
279 . {* Is the file descriptor being cached? That is, can it be closed as
280 . needed, and re-opened when accessed later? *}
281 . unsigned int cacheable : 1;
283 . {* Marks whether there was a default target specified when the
284 . BFD was opened. This is used to select which matching algorithm
285 . to use to choose the back end. *}
286 . unsigned int target_defaulted : 1;
288 . {* ... and here: (``once'' means at least once). *}
289 . unsigned int opened_once : 1;
291 . {* Set if we have a locally maintained mtime value, rather than
292 . getting it from the file each time. *}
293 . unsigned int mtime_set : 1;
295 . {* Flag set if symbols from this BFD should not be exported. *}
296 . unsigned int no_export : 1;
298 . {* Remember when output has begun, to stop strange things
300 . unsigned int output_has_begun : 1;
302 . {* Have archive map. *}
303 . unsigned int has_armap : 1;
305 . {* Set if this is a thin archive. *}
306 . unsigned int is_thin_archive : 1;
308 . {* Set if only required symbols should be added in the link hash table for
309 . this object. Used by VMS linkers. *}
310 . unsigned int selective_search : 1;
319 #include "libiberty.h"
320 #include "demangle.h"
321 #include "safe-ctype.h"
324 #include "coff/internal.h"
325 #include "coff/sym.h"
327 #include "libecoff.h"
332 #define EXIT_FAILURE 1
336 /* provide storage for subsystem, stack and heap data which may have been
337 passed in on the command line. Ld puts this data into a bfd_link_info
338 struct which ultimately gets passed in to the bfd. When it arrives, copy
339 it to the following struct so that the data will be available in coffcode.h
340 where it is needed. The typedef's used are defined in bfd.h */
346 Most BFD functions return nonzero on success (check their
347 individual documentation for precise semantics). On an error,
348 they call <<bfd_set_error>> to set an error condition that callers
349 can check by calling <<bfd_get_error>>.
350 If that returns <<bfd_error_system_call>>, then check
353 The easiest way to report a BFD error to the user is to
357 Type <<bfd_error_type>>
359 The values returned by <<bfd_get_error>> are defined by the
360 enumerated type <<bfd_error_type>>.
364 .typedef enum bfd_error
366 . bfd_error_no_error = 0,
367 . bfd_error_system_call,
368 . bfd_error_invalid_target,
369 . bfd_error_wrong_format,
370 . bfd_error_wrong_object_format,
371 . bfd_error_invalid_operation,
372 . bfd_error_no_memory,
373 . bfd_error_no_symbols,
374 . bfd_error_no_armap,
375 . bfd_error_no_more_archived_files,
376 . bfd_error_malformed_archive,
377 . bfd_error_file_not_recognized,
378 . bfd_error_file_ambiguously_recognized,
379 . bfd_error_no_contents,
380 . bfd_error_nonrepresentable_section,
381 . bfd_error_no_debug_section,
382 . bfd_error_bad_value,
383 . bfd_error_file_truncated,
384 . bfd_error_file_too_big,
385 . bfd_error_on_input,
386 . bfd_error_invalid_error_code
392 static bfd_error_type bfd_error
= bfd_error_no_error
;
393 static bfd
*input_bfd
= NULL
;
394 static bfd_error_type input_error
= bfd_error_no_error
;
396 const char *const bfd_errmsgs
[] =
399 N_("System call error"),
400 N_("Invalid bfd target"),
401 N_("File in wrong format"),
402 N_("Archive object file in wrong format"),
403 N_("Invalid operation"),
404 N_("Memory exhausted"),
406 N_("Archive has no index; run ranlib to add one"),
407 N_("No more archived files"),
408 N_("Malformed archive"),
409 N_("File format not recognized"),
410 N_("File format is ambiguous"),
411 N_("Section has no contents"),
412 N_("Nonrepresentable section on output"),
413 N_("Symbol needs debug section which does not exist"),
415 N_("File truncated"),
417 N_("Error reading %s: %s"),
418 N_("#<Invalid error code>")
426 bfd_error_type bfd_get_error (void);
429 Return the current BFD error condition.
443 void bfd_set_error (bfd_error_type error_tag, ...);
446 Set the BFD error condition to be @var{error_tag}.
447 If @var{error_tag} is bfd_error_on_input, then this function
448 takes two more parameters, the input bfd where the error
449 occurred, and the bfd_error_type error.
453 bfd_set_error (bfd_error_type error_tag
, ...)
455 bfd_error
= error_tag
;
456 if (error_tag
== bfd_error_on_input
)
458 /* This is an error that occurred during bfd_close when
459 writing an archive, but on one of the input files. */
462 va_start (ap
, error_tag
);
463 input_bfd
= va_arg (ap
, bfd
*);
464 input_error
= (bfd_error_type
) va_arg (ap
, int);
465 if (input_error
>= bfd_error_on_input
)
476 const char *bfd_errmsg (bfd_error_type error_tag);
479 Return a string describing the error @var{error_tag}, or
480 the system error if @var{error_tag} is <<bfd_error_system_call>>.
484 bfd_errmsg (bfd_error_type error_tag
)
489 if (error_tag
== bfd_error_on_input
)
492 const char *msg
= bfd_errmsg (input_error
);
494 if (asprintf (&buf
, _(bfd_errmsgs
[error_tag
]), input_bfd
->filename
, msg
)
498 /* Ick, what to do on out of memory? */
502 if (error_tag
== bfd_error_system_call
)
503 return xstrerror (errno
);
505 if (error_tag
> bfd_error_invalid_error_code
)
506 error_tag
= bfd_error_invalid_error_code
; /* sanity check */
508 return _(bfd_errmsgs
[error_tag
]);
516 void bfd_perror (const char *message);
519 Print to the standard error stream a string describing the
520 last BFD error that occurred, or the last system error if
521 the last BFD error was a system call failure. If @var{message}
522 is non-NULL and non-empty, the error string printed is preceded
523 by @var{message}, a colon, and a space. It is followed by a newline.
527 bfd_perror (const char *message
)
530 if (message
== NULL
|| *message
== '\0')
531 fprintf (stderr
, "%s\n", bfd_errmsg (bfd_get_error ()));
533 fprintf (stderr
, "%s: %s\n", message
, bfd_errmsg (bfd_get_error ()));
541 Some BFD functions want to print messages describing the
542 problem. They call a BFD error handler function. This
543 function may be overridden by the program.
545 The BFD error handler acts like printf.
549 .typedef void (*bfd_error_handler_type) (const char *, ...);
553 /* The program name used when printing BFD error messages. */
555 static const char *_bfd_error_program_name
;
557 /* This is the default routine to handle BFD error messages.
558 Like fprintf (stderr, ...), but also handles some extra format specifiers.
560 %A section name from section. For group components, print group name too.
561 %B file name from bfd. For archive components, prints archive too.
563 Note - because these two extra format specifiers require special handling
564 they are scanned for and processed in this function, before calling
565 vfprintf. This means that the *arguments* for these format specifiers
566 must be the first ones in the variable argument list, regardless of where
567 the specifiers appear in the format string. Thus for example calling
568 this function with a format string of:
570 "blah %s blah %A blah %d blah %B"
572 would involve passing the arguments as:
574 "blah %s blah %A blah %d blah %B",
582 _bfd_default_error_handler (const char *fmt
, ...)
586 const char *new_fmt
, *p
;
590 /* PR 4992: Don't interrupt output being sent to stdout. */
593 if (_bfd_error_program_name
!= NULL
)
594 fprintf (stderr
, "%s: ", _bfd_error_program_name
);
596 fprintf (stderr
, "BFD: ");
602 /* Reserve enough space for the existing format string. */
603 avail
-= strlen (fmt
) + 1;
605 _exit (EXIT_FAILURE
);
611 size_t len
, extra
, trim
;
614 if (p
== NULL
|| p
[1] == '\0')
619 memcpy (bufp
, fmt
, len
+ 1);
624 if (p
[1] == 'A' || p
[1] == 'B')
627 memcpy (bufp
, fmt
, len
);
632 /* If we run out of space, tough, you lose your ridiculously
633 long file or section name. It's not safe to try to alloc
634 memory here; We might be printing an out of memory message. */
645 bfd
*abfd
= va_arg (ap
, bfd
*);
648 /* Invoking %B with a null bfd pointer is an internal error. */
650 else if (abfd
->my_archive
)
651 snprintf (bufp
, avail
, "%s(%s)",
652 abfd
->my_archive
->filename
, abfd
->filename
);
654 snprintf (bufp
, avail
, "%s", abfd
->filename
);
658 asection
*sec
= va_arg (ap
, asection
*);
660 const char *group
= NULL
;
661 struct coff_comdat_info
*ci
;
664 /* Invoking %A with a null section pointer is an internal error. */
668 && bfd_get_flavour (abfd
) == bfd_target_elf_flavour
669 && elf_next_in_group (sec
) != NULL
670 && (sec
->flags
& SEC_GROUP
) == 0)
671 group
= elf_group_name (sec
);
672 else if (abfd
!= NULL
673 && bfd_get_flavour (abfd
) == bfd_target_coff_flavour
674 && (ci
= bfd_coff_get_comdat_section (sec
->owner
,
678 snprintf (bufp
, avail
, "%s[%s]", sec
->name
, group
);
680 snprintf (bufp
, avail
, "%s", sec
->name
);
683 avail
= avail
- len
+ 2;
685 /* We need to replace any '%' we printed by "%%".
686 First count how many. */
690 while ((q
= strchr (q
, '%')) != NULL
)
696 /* If there isn't room, trim off the end of the string. */
701 trim
= extra
- avail
;
714 /* Now double all '%' chars, shuffling the string as we go. */
717 while ((q
[extra
] = *q
) != '%')
727 vfprintf (stderr
, new_fmt
, ap
);
734 /* This is a function pointer to the routine which should handle BFD
735 error messages. It is called when a BFD routine encounters an
736 error for which it wants to print a message. Going through a
737 function pointer permits a program linked against BFD to intercept
738 the messages and deal with them itself. */
740 bfd_error_handler_type _bfd_error_handler
= _bfd_default_error_handler
;
744 bfd_set_error_handler
747 bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type);
750 Set the BFD error handler function. Returns the previous
754 bfd_error_handler_type
755 bfd_set_error_handler (bfd_error_handler_type pnew
)
757 bfd_error_handler_type pold
;
759 pold
= _bfd_error_handler
;
760 _bfd_error_handler
= pnew
;
766 bfd_set_error_program_name
769 void bfd_set_error_program_name (const char *);
772 Set the program name to use when printing a BFD error. This
773 is printed before the error message followed by a colon and
774 space. The string must not be changed after it is passed to
779 bfd_set_error_program_name (const char *name
)
781 _bfd_error_program_name
= name
;
786 bfd_get_error_handler
789 bfd_error_handler_type bfd_get_error_handler (void);
792 Return the BFD error handler function.
795 bfd_error_handler_type
796 bfd_get_error_handler (void)
798 return _bfd_error_handler
;
806 Miscellaneous functions
811 bfd_get_reloc_upper_bound
814 long bfd_get_reloc_upper_bound (bfd *abfd, asection *sect);
817 Return the number of bytes required to store the
818 relocation information associated with section @var{sect}
819 attached to bfd @var{abfd}. If an error occurs, return -1.
824 bfd_get_reloc_upper_bound (bfd
*abfd
, sec_ptr asect
)
826 if (abfd
->format
!= bfd_object
)
828 bfd_set_error (bfd_error_invalid_operation
);
832 return BFD_SEND (abfd
, _get_reloc_upper_bound
, (abfd
, asect
));
837 bfd_canonicalize_reloc
840 long bfd_canonicalize_reloc
841 (bfd *abfd, asection *sec, arelent **loc, asymbol **syms);
844 Call the back end associated with the open BFD
845 @var{abfd} and translate the external form of the relocation
846 information attached to @var{sec} into the internal canonical
847 form. Place the table into memory at @var{loc}, which has
848 been preallocated, usually by a call to
849 <<bfd_get_reloc_upper_bound>>. Returns the number of relocs, or
852 The @var{syms} table is also needed for horrible internal magic
857 bfd_canonicalize_reloc (bfd
*abfd
,
862 if (abfd
->format
!= bfd_object
)
864 bfd_set_error (bfd_error_invalid_operation
);
868 return BFD_SEND (abfd
, _bfd_canonicalize_reloc
,
869 (abfd
, asect
, location
, symbols
));
878 (bfd *abfd, asection *sec, arelent **rel, unsigned int count);
881 Set the relocation pointer and count within
882 section @var{sec} to the values @var{rel} and @var{count}.
883 The argument @var{abfd} is ignored.
888 bfd_set_reloc (bfd
*ignore_abfd ATTRIBUTE_UNUSED
,
893 asect
->orelocation
= location
;
894 asect
->reloc_count
= count
;
902 bfd_boolean bfd_set_file_flags (bfd *abfd, flagword flags);
905 Set the flag word in the BFD @var{abfd} to the value @var{flags}.
908 o <<bfd_error_wrong_format>> - The target bfd was not of object format.
909 o <<bfd_error_invalid_operation>> - The target bfd was open for reading.
910 o <<bfd_error_invalid_operation>> -
911 The flag word contained a bit which was not applicable to the
912 type of file. E.g., an attempt was made to set the <<D_PAGED>> bit
913 on a BFD format which does not support demand paging.
918 bfd_set_file_flags (bfd
*abfd
, flagword flags
)
920 if (abfd
->format
!= bfd_object
)
922 bfd_set_error (bfd_error_wrong_format
);
926 if (bfd_read_p (abfd
))
928 bfd_set_error (bfd_error_invalid_operation
);
932 bfd_get_file_flags (abfd
) = flags
;
933 if ((flags
& bfd_applicable_file_flags (abfd
)) != flags
)
935 bfd_set_error (bfd_error_invalid_operation
);
943 bfd_assert (const char *file
, int line
)
945 (*_bfd_error_handler
) (_("BFD %s assertion fail %s:%d"),
946 BFD_VERSION_STRING
, file
, line
);
949 /* A more or less friendly abort message. In libbfd.h abort is
950 defined to call this function. */
953 _bfd_abort (const char *file
, int line
, const char *fn
)
956 (*_bfd_error_handler
)
957 (_("BFD %s internal error, aborting at %s line %d in %s\n"),
958 BFD_VERSION_STRING
, file
, line
, fn
);
960 (*_bfd_error_handler
)
961 (_("BFD %s internal error, aborting at %s line %d\n"),
962 BFD_VERSION_STRING
, file
, line
);
963 (*_bfd_error_handler
) (_("Please report this bug.\n"));
964 _exit (EXIT_FAILURE
);
972 int bfd_get_arch_size (bfd *abfd);
975 Returns the architecture address size, in bits, as determined
976 by the object file's format. For ELF, this information is
977 included in the header.
980 Returns the arch size in bits if known, <<-1>> otherwise.
984 bfd_get_arch_size (bfd
*abfd
)
986 if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
987 return get_elf_backend_data (abfd
)->s
->arch_size
;
994 bfd_get_sign_extend_vma
997 int bfd_get_sign_extend_vma (bfd *abfd);
1000 Indicates if the target architecture "naturally" sign extends
1001 an address. Some architectures implicitly sign extend address
1002 values when they are converted to types larger than the size
1003 of an address. For instance, bfd_get_start_address() will
1004 return an address sign extended to fill a bfd_vma when this is
1008 Returns <<1>> if the target architecture is known to sign
1009 extend addresses, <<0>> if the target architecture is known to
1010 not sign extend addresses, and <<-1>> otherwise.
1014 bfd_get_sign_extend_vma (bfd
*abfd
)
1018 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
1019 return get_elf_backend_data (abfd
)->sign_extend_vma
;
1021 name
= bfd_get_target (abfd
);
1023 /* Return a proper value for DJGPP & PE COFF.
1024 This function is required for DWARF2 support, but there is
1025 no place to store this information in the COFF back end.
1026 Should enough other COFF targets add support for DWARF2,
1027 a place will have to be found. Until then, this hack will do. */
1028 if (CONST_STRNEQ (name
, "coff-go32")
1029 || strcmp (name
, "pe-i386") == 0
1030 || strcmp (name
, "pei-i386") == 0
1031 || strcmp (name
, "pe-x86-64") == 0
1032 || strcmp (name
, "pei-x86-64") == 0
1033 || strcmp (name
, "pe-arm-wince-little") == 0
1034 || strcmp (name
, "pei-arm-wince-little") == 0)
1037 if (CONST_STRNEQ (name
, "mach-o"))
1040 bfd_set_error (bfd_error_wrong_format
);
1046 bfd_set_start_address
1049 bfd_boolean bfd_set_start_address (bfd *abfd, bfd_vma vma);
1052 Make @var{vma} the entry point of output BFD @var{abfd}.
1055 Returns <<TRUE>> on success, <<FALSE>> otherwise.
1059 bfd_set_start_address (bfd
*abfd
, bfd_vma vma
)
1061 abfd
->start_address
= vma
;
1070 unsigned int bfd_get_gp_size (bfd *abfd);
1073 Return the maximum size of objects to be optimized using the GP
1074 register under MIPS ECOFF. This is typically set by the <<-G>>
1075 argument to the compiler, assembler or linker.
1079 bfd_get_gp_size (bfd
*abfd
)
1081 if (abfd
->format
== bfd_object
)
1083 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1084 return ecoff_data (abfd
)->gp_size
;
1085 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1086 return elf_gp_size (abfd
);
1096 void bfd_set_gp_size (bfd *abfd, unsigned int i);
1099 Set the maximum size of objects to be optimized using the GP
1100 register under ECOFF or MIPS ELF. This is typically set by
1101 the <<-G>> argument to the compiler, assembler or linker.
1105 bfd_set_gp_size (bfd
*abfd
, unsigned int i
)
1107 /* Don't try to set GP size on an archive or core file! */
1108 if (abfd
->format
!= bfd_object
)
1111 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1112 ecoff_data (abfd
)->gp_size
= i
;
1113 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1114 elf_gp_size (abfd
) = i
;
1117 /* Get the GP value. This is an internal function used by some of the
1118 relocation special_function routines on targets which support a GP
1122 _bfd_get_gp_value (bfd
*abfd
)
1126 if (abfd
->format
!= bfd_object
)
1129 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1130 return ecoff_data (abfd
)->gp
;
1131 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1132 return elf_gp (abfd
);
1137 /* Set the GP value. */
1140 _bfd_set_gp_value (bfd
*abfd
, bfd_vma v
)
1144 if (abfd
->format
!= bfd_object
)
1147 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1148 ecoff_data (abfd
)->gp
= v
;
1149 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1158 bfd_vma bfd_scan_vma (const char *string, const char **end, int base);
1161 Convert, like <<strtoul>>, a numerical expression
1162 @var{string} into a <<bfd_vma>> integer, and return that integer.
1163 (Though without as many bells and whistles as <<strtoul>>.)
1164 The expression is assumed to be unsigned (i.e., positive).
1165 If given a @var{base}, it is used as the base for conversion.
1166 A base of 0 causes the function to interpret the string
1167 in hex if a leading "0x" or "0X" is found, otherwise
1168 in octal if a leading zero is found, otherwise in decimal.
1170 If the value would overflow, the maximum <<bfd_vma>> value is
1175 bfd_scan_vma (const char *string
, const char **end
, int base
)
1179 unsigned int cutlim
;
1182 /* Let the host do it if possible. */
1183 if (sizeof (bfd_vma
) <= sizeof (unsigned long))
1184 return strtoul (string
, (char **) end
, base
);
1186 #ifdef HAVE_STRTOULL
1187 if (sizeof (bfd_vma
) <= sizeof (unsigned long long))
1188 return strtoull (string
, (char **) end
, base
);
1193 if (string
[0] == '0')
1195 if ((string
[1] == 'x') || (string
[1] == 'X'))
1202 if ((base
< 2) || (base
> 36))
1207 && (string
[1] == 'x' || string
[1] == 'X')
1208 && ISXDIGIT (string
[2]))
1213 cutoff
= (~ (bfd_vma
) 0) / (bfd_vma
) base
;
1214 cutlim
= (~ (bfd_vma
) 0) % (bfd_vma
) base
;
1222 if (ISDIGIT (digit
))
1223 digit
= digit
- '0';
1224 else if (ISALPHA (digit
))
1225 digit
= TOUPPER (digit
) - 'A' + 10;
1228 if (digit
>= (unsigned int) base
)
1230 if (value
> cutoff
|| (value
== cutoff
&& digit
> cutlim
))
1232 value
= value
* base
+ digit
;
1237 value
= ~ (bfd_vma
) 0;
1247 bfd_copy_private_header_data
1250 bfd_boolean bfd_copy_private_header_data (bfd *ibfd, bfd *obfd);
1253 Copy private BFD header information from the BFD @var{ibfd} to the
1254 the BFD @var{obfd}. This copies information that may require
1255 sections to exist, but does not require symbol tables. Return
1256 <<true>> on success, <<false>> on error.
1257 Possible error returns are:
1259 o <<bfd_error_no_memory>> -
1260 Not enough memory exists to create private data for @var{obfd}.
1262 .#define bfd_copy_private_header_data(ibfd, obfd) \
1263 . BFD_SEND (obfd, _bfd_copy_private_header_data, \
1270 bfd_copy_private_bfd_data
1273 bfd_boolean bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd);
1276 Copy private BFD information from the BFD @var{ibfd} to the
1277 the BFD @var{obfd}. Return <<TRUE>> on success, <<FALSE>> on error.
1278 Possible error returns are:
1280 o <<bfd_error_no_memory>> -
1281 Not enough memory exists to create private data for @var{obfd}.
1283 .#define bfd_copy_private_bfd_data(ibfd, obfd) \
1284 . BFD_SEND (obfd, _bfd_copy_private_bfd_data, \
1291 bfd_merge_private_bfd_data
1294 bfd_boolean bfd_merge_private_bfd_data (bfd *ibfd, bfd *obfd);
1297 Merge private BFD information from the BFD @var{ibfd} to the
1298 the output file BFD @var{obfd} when linking. Return <<TRUE>>
1299 on success, <<FALSE>> on error. Possible error returns are:
1301 o <<bfd_error_no_memory>> -
1302 Not enough memory exists to create private data for @var{obfd}.
1304 .#define bfd_merge_private_bfd_data(ibfd, obfd) \
1305 . BFD_SEND (obfd, _bfd_merge_private_bfd_data, \
1312 bfd_set_private_flags
1315 bfd_boolean bfd_set_private_flags (bfd *abfd, flagword flags);
1318 Set private BFD flag information in the BFD @var{abfd}.
1319 Return <<TRUE>> on success, <<FALSE>> on error. Possible error
1322 o <<bfd_error_no_memory>> -
1323 Not enough memory exists to create private data for @var{obfd}.
1325 .#define bfd_set_private_flags(abfd, flags) \
1326 . BFD_SEND (abfd, _bfd_set_private_flags, (abfd, flags))
1335 The following functions exist but have not yet been documented.
1337 .#define bfd_sizeof_headers(abfd, info) \
1338 . BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, info))
1340 .#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
1341 . BFD_SEND (abfd, _bfd_find_nearest_line, \
1342 . (abfd, sec, syms, off, file, func, line))
1344 .#define bfd_find_line(abfd, syms, sym, file, line) \
1345 . BFD_SEND (abfd, _bfd_find_line, \
1346 . (abfd, syms, sym, file, line))
1348 .#define bfd_find_inliner_info(abfd, file, func, line) \
1349 . BFD_SEND (abfd, _bfd_find_inliner_info, \
1350 . (abfd, file, func, line))
1352 .#define bfd_debug_info_start(abfd) \
1353 . BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
1355 .#define bfd_debug_info_end(abfd) \
1356 . BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
1358 .#define bfd_debug_info_accumulate(abfd, section) \
1359 . BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
1361 .#define bfd_stat_arch_elt(abfd, stat) \
1362 . BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
1364 .#define bfd_update_armap_timestamp(abfd) \
1365 . BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))
1367 .#define bfd_set_arch_mach(abfd, arch, mach)\
1368 . BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
1370 .#define bfd_relax_section(abfd, section, link_info, again) \
1371 . BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
1373 .#define bfd_gc_sections(abfd, link_info) \
1374 . BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info))
1376 .#define bfd_merge_sections(abfd, link_info) \
1377 . BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info))
1379 .#define bfd_is_group_section(abfd, sec) \
1380 . BFD_SEND (abfd, _bfd_is_group_section, (abfd, sec))
1382 .#define bfd_discard_group(abfd, sec) \
1383 . BFD_SEND (abfd, _bfd_discard_group, (abfd, sec))
1385 .#define bfd_link_hash_table_create(abfd) \
1386 . BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
1388 .#define bfd_link_hash_table_free(abfd, hash) \
1389 . BFD_SEND (abfd, _bfd_link_hash_table_free, (hash))
1391 .#define bfd_link_add_symbols(abfd, info) \
1392 . BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
1394 .#define bfd_link_just_syms(abfd, sec, info) \
1395 . BFD_SEND (abfd, _bfd_link_just_syms, (sec, info))
1397 .#define bfd_final_link(abfd, info) \
1398 . BFD_SEND (abfd, _bfd_final_link, (abfd, info))
1400 .#define bfd_free_cached_info(abfd) \
1401 . BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
1403 .#define bfd_get_dynamic_symtab_upper_bound(abfd) \
1404 . BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
1406 .#define bfd_print_private_bfd_data(abfd, file)\
1407 . BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file))
1409 .#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
1410 . BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
1412 .#define bfd_get_synthetic_symtab(abfd, count, syms, dyncount, dynsyms, ret) \
1413 . BFD_SEND (abfd, _bfd_get_synthetic_symtab, (abfd, count, syms, \
1414 . dyncount, dynsyms, ret))
1416 .#define bfd_get_dynamic_reloc_upper_bound(abfd) \
1417 . BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
1419 .#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
1420 . BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
1422 .extern bfd_byte *bfd_get_relocated_section_contents
1423 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *,
1424 . bfd_boolean, asymbol **);
1430 bfd_get_relocated_section_contents (bfd
*abfd
,
1431 struct bfd_link_info
*link_info
,
1432 struct bfd_link_order
*link_order
,
1434 bfd_boolean relocatable
,
1438 bfd_byte
*(*fn
) (bfd
*, struct bfd_link_info
*, struct bfd_link_order
*,
1439 bfd_byte
*, bfd_boolean
, asymbol
**);
1441 if (link_order
->type
== bfd_indirect_link_order
)
1443 abfd2
= link_order
->u
.indirect
.section
->owner
;
1450 fn
= abfd2
->xvec
->_bfd_get_relocated_section_contents
;
1452 return (*fn
) (abfd
, link_info
, link_order
, data
, relocatable
, symbols
);
1455 /* Record information about an ELF program header. */
1458 bfd_record_phdr (bfd
*abfd
,
1460 bfd_boolean flags_valid
,
1462 bfd_boolean at_valid
,
1464 bfd_boolean includes_filehdr
,
1465 bfd_boolean includes_phdrs
,
1469 struct elf_segment_map
*m
, **pm
;
1472 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1475 amt
= sizeof (struct elf_segment_map
);
1476 amt
+= ((bfd_size_type
) count
- 1) * sizeof (asection
*);
1477 m
= (struct elf_segment_map
*) bfd_zalloc (abfd
, amt
);
1484 m
->p_flags_valid
= flags_valid
;
1485 m
->p_paddr_valid
= at_valid
;
1486 m
->includes_filehdr
= includes_filehdr
;
1487 m
->includes_phdrs
= includes_phdrs
;
1490 memcpy (m
->sections
, secs
, count
* sizeof (asection
*));
1492 for (pm
= &elf_tdata (abfd
)->segment_map
; *pm
!= NULL
; pm
= &(*pm
)->next
)
1500 /* Return true iff this target is 32-bit. */
1505 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
1507 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1508 return bed
->s
->elfclass
== ELFCLASS32
;
1511 /* For non-ELF targets, use architecture information. */
1512 return bfd_arch_bits_per_address (abfd
) <= 32;
1516 /* bfd_sprintf_vma and bfd_fprintf_vma display an address in the
1517 target's address size. */
1520 bfd_sprintf_vma (bfd
*abfd ATTRIBUTE_UNUSED
, char *buf
, bfd_vma value
)
1525 sprintf (buf
, "%08lx", (unsigned long) value
& 0xffffffff);
1529 sprintf_vma (buf
, value
);
1533 bfd_fprintf_vma (bfd
*abfd ATTRIBUTE_UNUSED
, void *stream
, bfd_vma value
)
1538 fprintf ((FILE *) stream
, "%08lx", (unsigned long) value
& 0xffffffff);
1542 fprintf_vma ((FILE *) stream
, value
);
1550 bfd_boolean bfd_alt_mach_code (bfd *abfd, int alternative);
1554 When more than one machine code number is available for the
1555 same machine type, this function can be used to switch between
1556 the preferred one (alternative == 0) and any others. Currently,
1557 only ELF supports this feature, with up to two alternate
1562 bfd_alt_mach_code (bfd
*abfd
, int alternative
)
1564 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
1568 switch (alternative
)
1571 code
= get_elf_backend_data (abfd
)->elf_machine_code
;
1575 code
= get_elf_backend_data (abfd
)->elf_machine_alt1
;
1581 code
= get_elf_backend_data (abfd
)->elf_machine_alt2
;
1590 elf_elfheader (abfd
)->e_machine
= code
;
1601 .struct bfd_preserve
1606 . const struct bfd_arch_info *arch_info;
1607 . struct bfd_section *sections;
1608 . struct bfd_section *section_last;
1609 . unsigned int section_count;
1610 . struct bfd_hash_table section_htab;
1620 bfd_boolean bfd_preserve_save (bfd *, struct bfd_preserve *);
1623 When testing an object for compatibility with a particular
1624 target back-end, the back-end object_p function needs to set
1625 up certain fields in the bfd on successfully recognizing the
1626 object. This typically happens in a piecemeal fashion, with
1627 failures possible at many points. On failure, the bfd is
1628 supposed to be restored to its initial state, which is
1629 virtually impossible. However, restoring a subset of the bfd
1630 state works in practice. This function stores the subset and
1631 reinitializes the bfd.
1636 bfd_preserve_save (bfd
*abfd
, struct bfd_preserve
*preserve
)
1638 preserve
->tdata
= abfd
->tdata
.any
;
1639 preserve
->arch_info
= abfd
->arch_info
;
1640 preserve
->flags
= abfd
->flags
;
1641 preserve
->sections
= abfd
->sections
;
1642 preserve
->section_last
= abfd
->section_last
;
1643 preserve
->section_count
= abfd
->section_count
;
1644 preserve
->section_htab
= abfd
->section_htab
;
1646 if (! bfd_hash_table_init (&abfd
->section_htab
, bfd_section_hash_newfunc
,
1647 sizeof (struct section_hash_entry
)))
1650 abfd
->tdata
.any
= NULL
;
1651 abfd
->arch_info
= &bfd_default_arch_struct
;
1652 abfd
->flags
&= BFD_FLAGS_SAVED
;
1653 abfd
->sections
= NULL
;
1654 abfd
->section_last
= NULL
;
1655 abfd
->section_count
= 0;
1662 bfd_preserve_restore
1665 void bfd_preserve_restore (bfd *, struct bfd_preserve *);
1668 This function restores bfd state saved by bfd_preserve_save.
1669 If MARKER is non-NULL in struct bfd_preserve then that block
1670 and all subsequently bfd_alloc'd memory is freed.
1675 bfd_preserve_restore (bfd
*abfd
, struct bfd_preserve
*preserve
)
1677 bfd_hash_table_free (&abfd
->section_htab
);
1679 abfd
->tdata
.any
= preserve
->tdata
;
1680 abfd
->arch_info
= preserve
->arch_info
;
1681 abfd
->flags
= preserve
->flags
;
1682 abfd
->section_htab
= preserve
->section_htab
;
1683 abfd
->sections
= preserve
->sections
;
1684 abfd
->section_last
= preserve
->section_last
;
1685 abfd
->section_count
= preserve
->section_count
;
1687 /* bfd_release frees all memory more recently bfd_alloc'd than
1688 its arg, as well as its arg. */
1689 if (preserve
->marker
!= NULL
)
1691 bfd_release (abfd
, preserve
->marker
);
1692 preserve
->marker
= NULL
;
1701 void bfd_preserve_finish (bfd *, struct bfd_preserve *);
1704 This function should be called when the bfd state saved by
1705 bfd_preserve_save is no longer needed. ie. when the back-end
1706 object_p function returns with success.
1711 bfd_preserve_finish (bfd
*abfd ATTRIBUTE_UNUSED
, struct bfd_preserve
*preserve
)
1713 /* It would be nice to be able to free more memory here, eg. old
1714 tdata, but that's not possible since these blocks are sitting
1715 inside bfd_alloc'd memory. The section hash is on a separate
1717 bfd_hash_table_free (&preserve
->section_htab
);
1722 bfd_emul_get_maxpagesize
1725 bfd_vma bfd_emul_get_maxpagesize (const char *);
1728 Returns the maximum page size, in bytes, as determined by
1732 Returns the maximum page size in bytes for ELF, 0 otherwise.
1736 bfd_emul_get_maxpagesize (const char *emul
)
1738 const bfd_target
*target
;
1740 target
= bfd_find_target (emul
, NULL
);
1742 && target
->flavour
== bfd_target_elf_flavour
)
1743 return xvec_get_elf_backend_data (target
)->maxpagesize
;
1749 bfd_elf_set_pagesize (const bfd_target
*target
, bfd_vma size
,
1750 int offset
, const bfd_target
*orig_target
)
1752 if (target
->flavour
== bfd_target_elf_flavour
)
1754 const struct elf_backend_data
*bed
;
1756 bed
= xvec_get_elf_backend_data (target
);
1757 *((bfd_vma
*) ((char *) bed
+ offset
)) = size
;
1760 if (target
->alternative_target
1761 && target
->alternative_target
!= orig_target
)
1762 bfd_elf_set_pagesize (target
->alternative_target
, size
, offset
,
1768 bfd_emul_set_maxpagesize
1771 void bfd_emul_set_maxpagesize (const char *, bfd_vma);
1774 For ELF, set the maximum page size for the emulation. It is
1775 a no-op for other formats.
1780 bfd_emul_set_maxpagesize (const char *emul
, bfd_vma size
)
1782 const bfd_target
*target
;
1784 target
= bfd_find_target (emul
, NULL
);
1786 bfd_elf_set_pagesize (target
, size
,
1787 offsetof (struct elf_backend_data
,
1788 maxpagesize
), target
);
1793 bfd_emul_get_commonpagesize
1796 bfd_vma bfd_emul_get_commonpagesize (const char *);
1799 Returns the common page size, in bytes, as determined by
1803 Returns the common page size in bytes for ELF, 0 otherwise.
1807 bfd_emul_get_commonpagesize (const char *emul
)
1809 const bfd_target
*target
;
1811 target
= bfd_find_target (emul
, NULL
);
1813 && target
->flavour
== bfd_target_elf_flavour
)
1814 return xvec_get_elf_backend_data (target
)->commonpagesize
;
1821 bfd_emul_set_commonpagesize
1824 void bfd_emul_set_commonpagesize (const char *, bfd_vma);
1827 For ELF, set the common page size for the emulation. It is
1828 a no-op for other formats.
1833 bfd_emul_set_commonpagesize (const char *emul
, bfd_vma size
)
1835 const bfd_target
*target
;
1837 target
= bfd_find_target (emul
, NULL
);
1839 bfd_elf_set_pagesize (target
, size
,
1840 offsetof (struct elf_backend_data
,
1841 commonpagesize
), target
);
1849 char *bfd_demangle (bfd *, const char *, int);
1852 Wrapper around cplus_demangle. Strips leading underscores and
1853 other such chars that would otherwise confuse the demangler.
1854 If passed a g++ v3 ABI mangled name, returns a buffer allocated
1855 with malloc holding the demangled name. Returns NULL otherwise
1856 and on memory alloc failure.
1860 bfd_demangle (bfd
*abfd
, const char *name
, int options
)
1863 const char *pre
, *suf
;
1865 bfd_boolean skip_lead
;
1867 skip_lead
= (abfd
!= NULL
1869 && bfd_get_symbol_leading_char (abfd
) == *name
);
1873 /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF
1874 or the MS PE format. These formats have a number of leading '.'s
1875 on at least some symbols, so we remove all dots to avoid
1876 confusing the demangler. */
1878 while (*name
== '.' || *name
== '$')
1880 pre_len
= name
- pre
;
1882 /* Strip off @plt and suchlike too. */
1884 suf
= strchr (name
, '@');
1887 alloc
= (char *) bfd_malloc (suf
- name
+ 1);
1890 memcpy (alloc
, name
, suf
- name
);
1891 alloc
[suf
- name
] = '\0';
1895 res
= cplus_demangle (name
, options
);
1904 size_t len
= strlen (pre
) + 1;
1905 alloc
= (char *) bfd_malloc (len
);
1908 memcpy (alloc
, pre
, len
);
1914 /* Put back any prefix or suffix. */
1915 if (pre_len
!= 0 || suf
!= NULL
)
1924 suf_len
= strlen (suf
) + 1;
1925 final
= (char *) bfd_malloc (pre_len
+ len
+ suf_len
);
1928 memcpy (final
, pre
, pre_len
);
1929 memcpy (final
+ pre_len
, res
, len
);
1930 memcpy (final
+ pre_len
+ len
, suf
, suf_len
);