1 /* Generic BFD library interface and support routines.
2 Copyright (C) 1990-2021 Free Software Foundation, Inc.
3 Written by Cygnus Support.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
24 typedef bfd, Error reporting, BFD front end, BFD front end
29 A BFD has type <<bfd>>; objects of this type are the
30 cornerstone of any application using BFD. Using BFD
31 consists of making references though the BFD and to data in the BFD.
33 Here is the structure that defines the type <<bfd>>. It
34 contains the major data about the file and pointers
35 to the rest of the data.
43 . write_direction = 2,
47 .enum bfd_plugin_format
49 . bfd_plugin_unknown = 0,
62 . {* The filename the application opened the BFD with. *}
63 . const char *filename;
65 . {* A pointer to the target jump table. *}
66 . const struct bfd_target *xvec;
68 . {* The IOSTREAM, and corresponding IO vector that provide access
69 . to the file backing the BFD. *}
71 . const struct bfd_iovec *iovec;
73 . {* The caching routines use these to maintain a
74 . least-recently-used list of BFDs. *}
75 . struct bfd *lru_prev, *lru_next;
77 . {* Track current file position (or current buffer offset for
78 . in-memory BFDs). When a file is closed by the caching routines,
79 . BFD retains state information on the file here. *}
82 . {* File modified time, if mtime_set is TRUE. *}
85 . {* A unique identifier of the BFD *}
88 . {* Format_specific flags. *}
91 . {* Values that may appear in the flags field of a BFD. These also
92 . appear in the object_flags field of the bfd_target structure, where
93 . they indicate the set of flags used by that backend (not all flags
94 . are meaningful for all object file formats) (FIXME: at the moment,
95 . the object_flags values have mostly just been copied from backend
96 . to another, and are not necessarily correct). *}
98 .#define BFD_NO_FLAGS 0x0
100 . {* BFD contains relocation entries. *}
101 .#define HAS_RELOC 0x1
103 . {* BFD is directly executable. *}
106 . {* BFD has line number information (basically used for F_LNNO in a
108 .#define HAS_LINENO 0x4
110 . {* BFD has debugging information. *}
111 .#define HAS_DEBUG 0x08
113 . {* BFD has symbols. *}
114 .#define HAS_SYMS 0x10
116 . {* BFD has local symbols (basically used for F_LSYMS in a COFF
118 .#define HAS_LOCALS 0x20
120 . {* BFD is a dynamic object. *}
121 .#define DYNAMIC 0x40
123 . {* Text section is write protected (if D_PAGED is not set, this is
124 . like an a.out NMAGIC file) (the linker sets this by default, but
125 . clears it for -r or -N). *}
126 .#define WP_TEXT 0x80
128 . {* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the
129 . linker sets this by default, but clears it for -r or -n or -N). *}
130 .#define D_PAGED 0x100
132 . {* BFD is relaxable (this means that bfd_relax_section may be able to
133 . do something) (sometimes bfd_relax_section can do something even if
134 . this is not set). *}
135 .#define BFD_IS_RELAXABLE 0x200
137 . {* This may be set before writing out a BFD to request using a
138 . traditional format. For example, this is used to request that when
139 . writing out an a.out object the symbols not be hashed to eliminate
141 .#define BFD_TRADITIONAL_FORMAT 0x400
143 . {* This flag indicates that the BFD contents are actually cached
144 . in memory. If this is set, iostream points to a bfd_in_memory
146 .#define BFD_IN_MEMORY 0x800
148 . {* This BFD has been created by the linker and doesn't correspond
149 . to any input file. *}
150 .#define BFD_LINKER_CREATED 0x1000
152 . {* This may be set before writing out a BFD to request that it
153 . be written using values for UIDs, GIDs, timestamps, etc. that
154 . will be consistent from run to run. *}
155 .#define BFD_DETERMINISTIC_OUTPUT 0x2000
157 . {* Compress sections in this BFD. *}
158 .#define BFD_COMPRESS 0x4000
160 . {* Decompress sections in this BFD. *}
161 .#define BFD_DECOMPRESS 0x8000
163 . {* BFD is a dummy, for plugins. *}
164 .#define BFD_PLUGIN 0x10000
166 . {* Compress sections in this BFD with SHF_COMPRESSED from gABI. *}
167 .#define BFD_COMPRESS_GABI 0x20000
169 . {* Convert ELF common symbol type to STT_COMMON or STT_OBJECT in this
171 .#define BFD_CONVERT_ELF_COMMON 0x40000
173 . {* Use the ELF STT_COMMON type in this BFD. *}
174 .#define BFD_USE_ELF_STT_COMMON 0x80000
176 . {* Put pathnames into archives (non-POSIX). *}
177 .#define BFD_ARCHIVE_FULL_PATH 0x100000
179 . {* Flags bits to be saved in bfd_preserve_save. *}
180 .#define BFD_FLAGS_SAVED \
181 . (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_LINKER_CREATED \
182 . | BFD_PLUGIN | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON \
183 . | BFD_USE_ELF_STT_COMMON)
185 . {* Flags bits which are for BFD use only. *}
186 .#define BFD_FLAGS_FOR_BFD_USE_MASK \
187 . (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_LINKER_CREATED \
188 . | BFD_PLUGIN | BFD_TRADITIONAL_FORMAT | BFD_DETERMINISTIC_OUTPUT \
189 . | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON)
191 . {* The format which belongs to the BFD. (object, core, etc.) *}
192 . ENUM_BITFIELD (bfd_format) format : 3;
194 . {* The direction with which the BFD was opened. *}
195 . ENUM_BITFIELD (bfd_direction) direction : 2;
197 . {* Is the file descriptor being cached? That is, can it be closed as
198 . needed, and re-opened when accessed later? *}
199 . unsigned int cacheable : 1;
201 . {* Marks whether there was a default target specified when the
202 . BFD was opened. This is used to select which matching algorithm
203 . to use to choose the back end. *}
204 . unsigned int target_defaulted : 1;
206 . {* ... and here: (``once'' means at least once). *}
207 . unsigned int opened_once : 1;
209 . {* Set if we have a locally maintained mtime value, rather than
210 . getting it from the file each time. *}
211 . unsigned int mtime_set : 1;
213 . {* Flag set if symbols from this BFD should not be exported. *}
214 . unsigned int no_export : 1;
216 . {* Remember when output has begun, to stop strange things
218 . unsigned int output_has_begun : 1;
220 . {* Have archive map. *}
221 . unsigned int has_armap : 1;
223 . {* Set if this is a thin archive. *}
224 . unsigned int is_thin_archive : 1;
226 . {* Set if this archive should not cache element positions. *}
227 . unsigned int no_element_cache : 1;
229 . {* Set if only required symbols should be added in the link hash table for
230 . this object. Used by VMS linkers. *}
231 . unsigned int selective_search : 1;
233 . {* Set if this is the linker output BFD. *}
234 . unsigned int is_linker_output : 1;
236 . {* Set if this is the linker input BFD. *}
237 . unsigned int is_linker_input : 1;
239 . {* If this is an input for a compiler plug-in library. *}
240 . ENUM_BITFIELD (bfd_plugin_format) plugin_format : 2;
242 . {* Set if this is a plugin output file. *}
243 . unsigned int lto_output : 1;
245 . {* Set if this is a slim LTO object not loaded with a compiler plugin. *}
246 . unsigned int lto_slim_object : 1;
248 . {* Do not attempt to modify this file. Set when detecting errors
249 . that BFD is not prepared to handle for objcopy/strip. *}
250 . unsigned int read_only : 1;
252 . {* Set to dummy BFD created when claimed by a compiler plug-in
254 . bfd *plugin_dummy_bfd;
256 . {* The offset of this bfd in the file, typically 0 if it is not
257 . contained in an archive. *}
260 . {* The origin in the archive of the proxy entry. This will
261 . normally be the same as origin, except for thin archives,
262 . when it will contain the current offset of the proxy in the
263 . thin archive rather than the offset of the bfd in its actual
265 . ufile_ptr proxy_origin;
267 . {* A hash table for section names. *}
268 . struct bfd_hash_table section_htab;
270 . {* Pointer to linked list of sections. *}
271 . struct bfd_section *sections;
273 . {* The last section on the section list. *}
274 . struct bfd_section *section_last;
276 . {* The number of sections. *}
277 . unsigned int section_count;
279 . {* A field used by _bfd_generic_link_add_archive_symbols. This will
280 . be used only for archive elements. *}
283 . {* Stuff only useful for object files:
284 . The start address. *}
285 . bfd_vma start_address;
287 . {* Symbol table for output BFD (with symcount entries).
288 . Also used by the linker to cache input BFD symbols. *}
289 . struct bfd_symbol **outsymbols;
291 . {* Used for input and output. *}
292 . unsigned int symcount;
294 . {* Used for slurped dynamic symbol tables. *}
295 . unsigned int dynsymcount;
297 . {* Pointer to structure which contains architecture information. *}
298 . const struct bfd_arch_info *arch_info;
300 . {* Cached length of file for bfd_get_size. 0 until bfd_get_size is
301 . called, 1 if stat returns an error or the file size is too large to
302 . return in ufile_ptr. Both 0 and 1 should be treated as "unknown". *}
305 . {* Stuff only useful for archives. *}
307 . struct bfd *my_archive; {* The containing archive BFD. *}
308 . struct bfd *archive_next; {* The next BFD in the archive. *}
309 . struct bfd *archive_head; {* The first BFD in the archive. *}
310 . struct bfd *nested_archives; {* List of nested archive in a flattened
314 . {* For input BFDs, a chain of BFDs involved in a link. *}
316 . {* For output BFD, the linker hash table. *}
317 . struct bfd_link_hash_table *hash;
320 . {* Used by the back end to hold private data. *}
323 . struct aout_data_struct *aout_data;
324 . struct artdata *aout_ar_data;
325 . struct coff_tdata *coff_obj_data;
326 . struct pe_tdata *pe_obj_data;
327 . struct xcoff_tdata *xcoff_obj_data;
328 . struct ecoff_tdata *ecoff_obj_data;
329 . struct srec_data_struct *srec_data;
330 . struct verilog_data_struct *verilog_data;
331 . struct ihex_data_struct *ihex_data;
332 . struct tekhex_data_struct *tekhex_data;
333 . struct elf_obj_tdata *elf_obj_data;
334 . struct mmo_data_struct *mmo_data;
335 . struct sun_core_struct *sun_core_data;
336 . struct sco5_core_struct *sco5_core_data;
337 . struct trad_core_struct *trad_core_data;
338 . struct som_data_struct *som_data;
339 . struct hpux_core_struct *hpux_core_data;
340 . struct hppabsd_core_struct *hppabsd_core_data;
341 . struct sgi_core_struct *sgi_core_data;
342 . struct lynx_core_struct *lynx_core_data;
343 . struct osf_core_struct *osf_core_data;
344 . struct cisco_core_struct *cisco_core_data;
345 . struct versados_data_struct *versados_data;
346 . struct netbsd_core_struct *netbsd_core_data;
347 . struct mach_o_data_struct *mach_o_data;
348 . struct mach_o_fat_data_struct *mach_o_fat_data;
349 . struct plugin_data_struct *plugin_data;
350 . struct bfd_pef_data_struct *pef_data;
351 . struct bfd_pef_xlib_data_struct *pef_xlib_data;
352 . struct bfd_sym_data_struct *sym_data;
357 . {* Used by the application to hold private data. *}
360 . {* Where all the allocated stuff under this BFD goes. This is a
361 . struct objalloc *, but we use void * to avoid requiring the inclusion
365 . {* For input BFDs, the build ID, if the object has one. *}
366 . const struct bfd_build_id *build_id;
369 .static inline const char *
370 .bfd_get_filename (const bfd *abfd)
372 . return abfd->filename;
376 .bfd_get_cacheable (const bfd *abfd)
378 . return abfd->cacheable;
381 .static inline enum bfd_format
382 .bfd_get_format (const bfd *abfd)
384 . return abfd->format;
387 .static inline flagword
388 .bfd_get_file_flags (const bfd *abfd)
390 . return abfd->flags;
393 .static inline bfd_vma
394 .bfd_get_start_address (const bfd *abfd)
396 . return abfd->start_address;
399 .static inline unsigned int
400 .bfd_get_symcount (const bfd *abfd)
402 . return abfd->symcount;
405 .static inline unsigned int
406 .bfd_get_dynamic_symcount (const bfd *abfd)
408 . return abfd->dynsymcount;
411 .static inline struct bfd_symbol **
412 .bfd_get_outsymbols (const bfd *abfd)
414 . return abfd->outsymbols;
417 .static inline unsigned int
418 .bfd_count_sections (const bfd *abfd)
420 . return abfd->section_count;
424 .bfd_has_map (const bfd *abfd)
426 . return abfd->has_armap;
430 .bfd_is_thin_archive (const bfd *abfd)
432 . return abfd->is_thin_archive;
435 .static inline void *
436 .bfd_usrdata (const bfd *abfd)
438 . return abfd->usrdata;
441 .{* See note beside bfd_set_section_userdata. *}
443 .bfd_set_cacheable (bfd * abfd, bool val)
445 . abfd->cacheable = val;
450 .bfd_set_thin_archive (bfd *abfd, bool val)
452 . abfd->is_thin_archive = val;
456 .bfd_set_usrdata (bfd *abfd, void *val)
458 . abfd->usrdata = val;
461 .static inline asection *
462 .bfd_asymbol_section (const asymbol *sy)
464 . return sy->section;
467 .static inline bfd_vma
468 .bfd_asymbol_value (const asymbol *sy)
470 . return sy->section->vma + sy->value;
473 .static inline const char *
474 .bfd_asymbol_name (const asymbol *sy)
479 .static inline struct bfd *
480 .bfd_asymbol_bfd (const asymbol *sy)
482 . return sy->the_bfd;
486 .bfd_set_asymbol_name (asymbol *sy, const char *name)
491 .static inline bfd_size_type
492 .bfd_get_section_limit_octets (const bfd *abfd, const asection *sec)
494 . if (abfd->direction != write_direction && sec->rawsize != 0)
495 . return sec->rawsize;
499 .{* Find the address one past the end of SEC. *}
500 .static inline bfd_size_type
501 .bfd_get_section_limit (const bfd *abfd, const asection *sec)
503 . return (bfd_get_section_limit_octets (abfd, sec)
504 . / bfd_octets_per_byte (abfd, sec));
507 .{* Functions to handle insertion and deletion of a bfd's sections. These
508 . only handle the list pointers, ie. do not adjust section_count,
509 . target_index etc. *}
511 .bfd_section_list_remove (bfd *abfd, asection *s)
513 . asection *next = s->next;
514 . asection *prev = s->prev;
518 . abfd->sections = next;
522 . abfd->section_last = prev;
526 .bfd_section_list_append (bfd *abfd, asection *s)
529 . if (abfd->section_last)
531 . s->prev = abfd->section_last;
532 . abfd->section_last->next = s;
537 . abfd->sections = s;
539 . abfd->section_last = s;
543 .bfd_section_list_prepend (bfd *abfd, asection *s)
546 . if (abfd->sections)
548 . s->next = abfd->sections;
549 . abfd->sections->prev = s;
554 . abfd->section_last = s;
556 . abfd->sections = s;
560 .bfd_section_list_insert_after (bfd *abfd, asection *a, asection *s)
562 . asection *next = a->next;
569 . abfd->section_last = s;
573 .bfd_section_list_insert_before (bfd *abfd, asection *b, asection *s)
575 . asection *prev = b->prev;
582 . abfd->sections = s;
586 .bfd_section_removed_from_list (const bfd *abfd, const asection *s)
588 . return s->next ? s->next->prev != s : abfd->section_last != s;
597 #include "libiberty.h"
598 #include "demangle.h"
599 #include "safe-ctype.h"
602 #include "coff/internal.h"
603 #include "coff/sym.h"
605 #include "libecoff.h"
610 #define EXIT_FAILURE 1
614 /* provide storage for subsystem, stack and heap data which may have been
615 passed in on the command line. Ld puts this data into a bfd_link_info
616 struct which ultimately gets passed in to the bfd. When it arrives, copy
617 it to the following struct so that the data will be available in coffcode.h
618 where it is needed. The typedef's used are defined in bfd.h */
622 Error reporting, Miscellaneous, typedef bfd, BFD front end
627 Most BFD functions return nonzero on success (check their
628 individual documentation for precise semantics). On an error,
629 they call <<bfd_set_error>> to set an error condition that callers
630 can check by calling <<bfd_get_error>>.
631 If that returns <<bfd_error_system_call>>, then check
634 The easiest way to report a BFD error to the user is to
638 Type <<bfd_error_type>>
640 The values returned by <<bfd_get_error>> are defined by the
641 enumerated type <<bfd_error_type>>.
645 .typedef enum bfd_error
647 . bfd_error_no_error = 0,
648 . bfd_error_system_call,
649 . bfd_error_invalid_target,
650 . bfd_error_wrong_format,
651 . bfd_error_wrong_object_format,
652 . bfd_error_invalid_operation,
653 . bfd_error_no_memory,
654 . bfd_error_no_symbols,
655 . bfd_error_no_armap,
656 . bfd_error_no_more_archived_files,
657 . bfd_error_malformed_archive,
658 . bfd_error_missing_dso,
659 . bfd_error_file_not_recognized,
660 . bfd_error_file_ambiguously_recognized,
661 . bfd_error_no_contents,
662 . bfd_error_nonrepresentable_section,
663 . bfd_error_no_debug_section,
664 . bfd_error_bad_value,
665 . bfd_error_file_truncated,
666 . bfd_error_file_too_big,
668 . bfd_error_on_input,
669 . bfd_error_invalid_error_code
675 static bfd_error_type bfd_error
= bfd_error_no_error
;
676 static bfd
*input_bfd
= NULL
;
677 static bfd_error_type input_error
= bfd_error_no_error
;
679 const char *const bfd_errmsgs
[] =
682 N_("system call error"),
683 N_("invalid bfd target"),
684 N_("file in wrong format"),
685 N_("archive object file in wrong format"),
686 N_("invalid operation"),
687 N_("memory exhausted"),
689 N_("archive has no index; run ranlib to add one"),
690 N_("no more archived files"),
691 N_("malformed archive"),
692 N_("DSO missing from command line"),
693 N_("file format not recognized"),
694 N_("file format is ambiguous"),
695 N_("section has no contents"),
696 N_("nonrepresentable section on output"),
697 N_("symbol needs debug section which does not exist"),
699 N_("file truncated"),
701 N_("sorry, cannot handle this file"),
702 N_("error reading %s: %s"),
703 N_("#<invalid error code>")
711 bfd_error_type bfd_get_error (void);
714 Return the current BFD error condition.
728 void bfd_set_error (bfd_error_type error_tag);
731 Set the BFD error condition to be @var{error_tag}.
733 @var{error_tag} must not be bfd_error_on_input. Use
734 bfd_set_input_error for input errors instead.
738 bfd_set_error (bfd_error_type error_tag
)
740 bfd_error
= error_tag
;
741 if (bfd_error
>= bfd_error_on_input
)
750 void bfd_set_input_error (bfd *input, bfd_error_type error_tag);
754 Set the BFD error condition to be bfd_error_on_input.
755 @var{input} is the input bfd where the error occurred, and
756 @var{error_tag} the bfd_error_type error.
760 bfd_set_input_error (bfd
*input
, bfd_error_type error_tag
)
762 /* This is an error that occurred during bfd_close when writing an
763 archive, but on one of the input files. */
764 bfd_error
= bfd_error_on_input
;
766 input_error
= error_tag
;
767 if (input_error
>= bfd_error_on_input
)
776 const char *bfd_errmsg (bfd_error_type error_tag);
779 Return a string describing the error @var{error_tag}, or
780 the system error if @var{error_tag} is <<bfd_error_system_call>>.
784 bfd_errmsg (bfd_error_type error_tag
)
789 if (error_tag
== bfd_error_on_input
)
792 const char *msg
= bfd_errmsg (input_error
);
794 if (asprintf (&buf
, _(bfd_errmsgs
[error_tag
]),
795 bfd_get_filename (input_bfd
), msg
) != -1)
798 /* Ick, what to do on out of memory? */
802 if (error_tag
== bfd_error_system_call
)
803 return xstrerror (errno
);
805 if (error_tag
> bfd_error_invalid_error_code
)
806 error_tag
= bfd_error_invalid_error_code
; /* sanity check */
808 return _(bfd_errmsgs
[error_tag
]);
816 void bfd_perror (const char *message);
819 Print to the standard error stream a string describing the
820 last BFD error that occurred, or the last system error if
821 the last BFD error was a system call failure. If @var{message}
822 is non-NULL and non-empty, the error string printed is preceded
823 by @var{message}, a colon, and a space. It is followed by a newline.
827 bfd_perror (const char *message
)
830 if (message
== NULL
|| *message
== '\0')
831 fprintf (stderr
, "%s\n", bfd_errmsg (bfd_get_error ()));
833 fprintf (stderr
, "%s: %s\n", message
, bfd_errmsg (bfd_get_error ()));
841 Some BFD functions want to print messages describing the
842 problem. They call a BFD error handler function. This
843 function may be overridden by the program.
845 The BFD error handler acts like vprintf.
849 .typedef void (*bfd_error_handler_type) (const char *, va_list);
853 /* The program name used when printing BFD error messages. */
855 static const char *_bfd_error_program_name
;
857 /* Support for positional parameters. */
859 union _bfd_doprnt_args
879 /* This macro and _bfd_doprnt taken from libiberty _doprnt.c, tidied a
880 little and extended to handle '%pA', '%pB' and positional parameters. */
882 #define PRINT_TYPE(TYPE, FIELD) \
885 TYPE value = (TYPE) args[arg_no].FIELD; \
886 result = fprintf (stream, specifier, value); \
890 _bfd_doprnt (FILE *stream
, const char *format
, union _bfd_doprnt_args
*args
)
892 const char *ptr
= format
;
894 int total_printed
= 0;
895 unsigned int arg_count
= 0;
903 /* While we have regular characters, print them. */
904 char *end
= strchr (ptr
, '%');
906 result
= fprintf (stream
, "%.*s", (int) (end
- ptr
), ptr
);
908 result
= fprintf (stream
, "%s", ptr
);
911 else if (ptr
[1] == '%')
919 /* We have a format specifier! */
920 char *sptr
= specifier
;
921 int wide_width
= 0, short_width
= 0;
924 /* Copy the % and move forward. */
927 /* Check for a positional parameter. */
929 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
935 /* Move past flags. */
936 while (strchr ("-+ #0'I", *ptr
))
942 unsigned int arg_index
;
945 arg_index
= arg_count
;
946 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
948 arg_index
= *ptr
- '1';
951 value
= abs (args
[arg_index
].i
);
953 sptr
+= sprintf (sptr
, "%d", value
);
956 /* Handle explicit numeric value. */
957 while (ISDIGIT (*ptr
))
963 /* Copy and go past the period. */
968 unsigned int arg_index
;
971 arg_index
= arg_count
;
972 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
974 arg_index
= *ptr
- '1';
977 value
= abs (args
[arg_index
].i
);
979 sptr
+= sprintf (sptr
, "%d", value
);
982 /* Handle explicit numeric value. */
983 while (ISDIGIT (*ptr
))
986 while (strchr ("hlL", *ptr
))
1005 /* Copy the type specifier, and NULL terminate. */
1008 if ((int) arg_no
< 0)
1021 /* Short values are promoted to int, so just copy it
1022 as an int and trust the C library printf to cast it
1023 to the right width. */
1025 PRINT_TYPE (int, i
);
1031 PRINT_TYPE (int, i
);
1034 PRINT_TYPE (long, l
);
1038 #if defined (__MSVCRT__)
1045 PRINT_TYPE (long long, ll
);
1057 if (wide_width
== 0)
1058 PRINT_TYPE (double, d
);
1060 PRINT_TYPE (long double, ld
);
1064 PRINT_TYPE (char *, p
);
1071 const char *group
= NULL
;
1072 struct coff_comdat_info
*ci
;
1075 sec
= (asection
*) args
[arg_no
].p
;
1077 /* Invoking %pA with a null section pointer is an
1082 && bfd_get_flavour (abfd
) == bfd_target_elf_flavour
1083 && elf_next_in_group (sec
) != NULL
1084 && (sec
->flags
& SEC_GROUP
) == 0)
1085 group
= elf_group_name (sec
);
1086 else if (abfd
!= NULL
1087 && bfd_get_flavour (abfd
) == bfd_target_coff_flavour
1088 && (ci
= bfd_coff_get_comdat_section (sec
->owner
,
1092 result
= fprintf (stream
, "%s[%s]", sec
->name
, group
);
1094 result
= fprintf (stream
, "%s", sec
->name
);
1096 else if (*ptr
== 'B')
1101 abfd
= (bfd
*) args
[arg_no
].p
;
1103 /* Invoking %pB with a null bfd pointer is an
1106 else if (abfd
->my_archive
1107 && !bfd_is_thin_archive (abfd
->my_archive
))
1108 result
= fprintf (stream
, "%s(%s)",
1109 bfd_get_filename (abfd
->my_archive
),
1110 bfd_get_filename (abfd
));
1112 result
= fprintf (stream
, "%s", bfd_get_filename (abfd
));
1115 PRINT_TYPE (void *, p
);
1124 total_printed
+= result
;
1127 return total_printed
;
1130 /* First pass over FORMAT to gather ARGS. Returns number of args. */
1133 _bfd_doprnt_scan (const char *format
, union _bfd_doprnt_args
*args
)
1135 const char *ptr
= format
;
1136 unsigned int arg_count
= 0;
1138 while (*ptr
!= '\0')
1142 ptr
= strchr (ptr
, '%');
1146 else if (ptr
[1] == '%')
1150 int wide_width
= 0, short_width
= 0;
1151 unsigned int arg_no
;
1156 /* Check for a positional parameter. */
1158 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
1160 arg_no
= *ptr
- '1';
1164 /* Move past flags. */
1165 while (strchr ("-+ #0'I", *ptr
))
1170 unsigned int arg_index
;
1173 arg_index
= arg_count
;
1174 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
1176 arg_index
= *ptr
- '1';
1181 args
[arg_index
].type
= Int
;
1185 /* Handle explicit numeric value. */
1186 while (ISDIGIT (*ptr
))
1195 unsigned int arg_index
;
1198 arg_index
= arg_count
;
1199 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
1201 arg_index
= *ptr
- '1';
1206 args
[arg_index
].type
= Int
;
1210 /* Handle explicit numeric value. */
1211 while (ISDIGIT (*ptr
))
1214 while (strchr ("hlL", *ptr
))
1234 if ((int) arg_no
< 0)
1262 arg_type
= LongLong
;
1274 if (wide_width
== 0)
1277 arg_type
= LongDouble
;
1284 if (*ptr
== 'A' || *ptr
== 'B')
1294 args
[arg_no
].type
= arg_type
;
1303 error_handler_internal (const char *fmt
, va_list ap
)
1305 unsigned int i
, arg_count
;
1306 union _bfd_doprnt_args args
[9];
1308 for (i
= 0; i
< sizeof (args
) / sizeof (args
[0]); i
++)
1311 arg_count
= _bfd_doprnt_scan (fmt
, args
);
1312 for (i
= 0; i
< arg_count
; i
++)
1314 switch (args
[i
].type
)
1317 args
[i
].i
= va_arg (ap
, int);
1320 args
[i
].l
= va_arg (ap
, long);
1323 args
[i
].ll
= va_arg (ap
, long long);
1326 args
[i
].d
= va_arg (ap
, double);
1329 args
[i
].ld
= va_arg (ap
, long double);
1332 args
[i
].p
= va_arg (ap
, void *);
1339 /* PR 4992: Don't interrupt output being sent to stdout. */
1342 if (_bfd_error_program_name
!= NULL
)
1343 fprintf (stderr
, "%s: ", _bfd_error_program_name
);
1345 fprintf (stderr
, "BFD: ");
1347 _bfd_doprnt (stderr
, fmt
, args
);
1349 /* On AIX, putc is implemented as a macro that triggers a -Wunused-value
1350 warning, so use the fputc function to avoid it. */
1351 fputc ('\n', stderr
);
1355 /* This is a function pointer to the routine which should handle BFD
1356 error messages. It is called when a BFD routine encounters an
1357 error for which it wants to print a message. Going through a
1358 function pointer permits a program linked against BFD to intercept
1359 the messages and deal with them itself. */
1361 static bfd_error_handler_type _bfd_error_internal
= error_handler_internal
;
1368 void _bfd_error_handler (const char *fmt, ...) ATTRIBUTE_PRINTF_1;
1371 This is the default routine to handle BFD error messages.
1372 Like fprintf (stderr, ...), but also handles some extra format
1375 %pA section name from section. For group components, prints
1377 %pB file name from bfd. For archive components, prints
1380 Beware: Only supports a maximum of 9 format arguments.
1384 _bfd_error_handler (const char *fmt
, ...)
1389 _bfd_error_internal (fmt
, ap
);
1395 bfd_set_error_handler
1398 bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type);
1401 Set the BFD error handler function. Returns the previous
1405 bfd_error_handler_type
1406 bfd_set_error_handler (bfd_error_handler_type pnew
)
1408 bfd_error_handler_type pold
;
1410 pold
= _bfd_error_internal
;
1411 _bfd_error_internal
= pnew
;
1417 bfd_set_error_program_name
1420 void bfd_set_error_program_name (const char *);
1423 Set the program name to use when printing a BFD error. This
1424 is printed before the error message followed by a colon and
1425 space. The string must not be changed after it is passed to
1430 bfd_set_error_program_name (const char *name
)
1432 _bfd_error_program_name
= name
;
1439 If BFD finds an internal inconsistency, the bfd assert
1440 handler is called with information on the BFD version, BFD
1441 source file and line. If this happens, most programs linked
1442 against BFD are expected to want to exit with an error, or mark
1443 the current BFD operation as failed, so it is recommended to
1444 override the default handler, which just calls
1445 _bfd_error_handler and continues.
1449 .typedef void (*bfd_assert_handler_type) (const char *bfd_formatmsg,
1450 . const char *bfd_version,
1451 . const char *bfd_file,
1456 /* Note the use of bfd_ prefix on the parameter names above: we want to
1457 show which one is the message and which is the version by naming the
1458 parameters, but avoid polluting the program-using-bfd namespace as
1459 the typedef is visible in the exported headers that the program
1460 includes. Below, it's just for consistency. */
1463 _bfd_default_assert_handler (const char *bfd_formatmsg
,
1464 const char *bfd_version
,
1465 const char *bfd_file
,
1469 _bfd_error_handler (bfd_formatmsg
, bfd_version
, bfd_file
, bfd_line
);
1472 /* Similar to _bfd_error_handler, a program can decide to exit on an
1473 internal BFD error. We use a non-variadic type to simplify passing
1474 on parameters to other functions, e.g. _bfd_error_handler. */
1476 static bfd_assert_handler_type _bfd_assert_handler
= _bfd_default_assert_handler
;
1480 bfd_set_assert_handler
1483 bfd_assert_handler_type bfd_set_assert_handler (bfd_assert_handler_type);
1486 Set the BFD assert handler function. Returns the previous
1490 bfd_assert_handler_type
1491 bfd_set_assert_handler (bfd_assert_handler_type pnew
)
1493 bfd_assert_handler_type pold
;
1495 pold
= _bfd_assert_handler
;
1496 _bfd_assert_handler
= pnew
;
1502 Miscellaneous, Memory Usage, Error reporting, BFD front end
1508 Miscellaneous functions
1513 bfd_get_reloc_upper_bound
1516 long bfd_get_reloc_upper_bound (bfd *abfd, asection *sect);
1519 Return the number of bytes required to store the
1520 relocation information associated with section @var{sect}
1521 attached to bfd @var{abfd}. If an error occurs, return -1.
1526 bfd_get_reloc_upper_bound (bfd
*abfd
, sec_ptr asect
)
1528 if (abfd
->format
!= bfd_object
)
1530 bfd_set_error (bfd_error_invalid_operation
);
1534 return BFD_SEND (abfd
, _get_reloc_upper_bound
, (abfd
, asect
));
1539 bfd_canonicalize_reloc
1542 long bfd_canonicalize_reloc
1543 (bfd *abfd, asection *sec, arelent **loc, asymbol **syms);
1546 Call the back end associated with the open BFD
1547 @var{abfd} and translate the external form of the relocation
1548 information attached to @var{sec} into the internal canonical
1549 form. Place the table into memory at @var{loc}, which has
1550 been preallocated, usually by a call to
1551 <<bfd_get_reloc_upper_bound>>. Returns the number of relocs, or
1554 The @var{syms} table is also needed for horrible internal magic
1559 bfd_canonicalize_reloc (bfd
*abfd
,
1564 if (abfd
->format
!= bfd_object
)
1566 bfd_set_error (bfd_error_invalid_operation
);
1570 return BFD_SEND (abfd
, _bfd_canonicalize_reloc
,
1571 (abfd
, asect
, location
, symbols
));
1580 (bfd *abfd, asection *sec, arelent **rel, unsigned int count);
1583 Set the relocation pointer and count within
1584 section @var{sec} to the values @var{rel} and @var{count}.
1585 The argument @var{abfd} is ignored.
1587 .#define bfd_set_reloc(abfd, asect, location, count) \
1588 . BFD_SEND (abfd, _bfd_set_reloc, (abfd, asect, location, count))
1596 bool bfd_set_file_flags (bfd *abfd, flagword flags);
1599 Set the flag word in the BFD @var{abfd} to the value @var{flags}.
1601 Possible errors are:
1602 o <<bfd_error_wrong_format>> - The target bfd was not of object format.
1603 o <<bfd_error_invalid_operation>> - The target bfd was open for reading.
1604 o <<bfd_error_invalid_operation>> -
1605 The flag word contained a bit which was not applicable to the
1606 type of file. E.g., an attempt was made to set the <<D_PAGED>> bit
1607 on a BFD format which does not support demand paging.
1612 bfd_set_file_flags (bfd
*abfd
, flagword flags
)
1614 if (abfd
->format
!= bfd_object
)
1616 bfd_set_error (bfd_error_wrong_format
);
1620 if (bfd_read_p (abfd
))
1622 bfd_set_error (bfd_error_invalid_operation
);
1626 abfd
->flags
= flags
;
1627 if ((flags
& bfd_applicable_file_flags (abfd
)) != flags
)
1629 bfd_set_error (bfd_error_invalid_operation
);
1637 bfd_assert (const char *file
, int line
)
1639 /* xgettext:c-format */
1640 (*_bfd_assert_handler
) (_("BFD %s assertion fail %s:%d"),
1641 BFD_VERSION_STRING
, file
, line
);
1644 /* A more or less friendly abort message. In libbfd.h abort is
1645 defined to call this function. */
1648 _bfd_abort (const char *file
, int line
, const char *fn
)
1652 /* xgettext:c-format */
1653 (_("BFD %s internal error, aborting at %s:%d in %s\n"),
1654 BFD_VERSION_STRING
, file
, line
, fn
);
1657 /* xgettext:c-format */
1658 (_("BFD %s internal error, aborting at %s:%d\n"),
1659 BFD_VERSION_STRING
, file
, line
);
1660 _bfd_error_handler (_("Please report this bug.\n"));
1661 _exit (EXIT_FAILURE
);
1669 int bfd_get_arch_size (bfd *abfd);
1672 Returns the normalized architecture address size, in bits, as
1673 determined by the object file's format. By normalized, we mean
1674 either 32 or 64. For ELF, this information is included in the
1675 header. Use bfd_arch_bits_per_address for number of bits in
1676 the architecture address.
1679 Returns the arch size in bits if known, <<-1>> otherwise.
1683 bfd_get_arch_size (bfd
*abfd
)
1685 if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1686 return get_elf_backend_data (abfd
)->s
->arch_size
;
1688 return bfd_arch_bits_per_address (abfd
) > 32 ? 64 : 32;
1693 bfd_get_sign_extend_vma
1696 int bfd_get_sign_extend_vma (bfd *abfd);
1699 Indicates if the target architecture "naturally" sign extends
1700 an address. Some architectures implicitly sign extend address
1701 values when they are converted to types larger than the size
1702 of an address. For instance, bfd_get_start_address() will
1703 return an address sign extended to fill a bfd_vma when this is
1707 Returns <<1>> if the target architecture is known to sign
1708 extend addresses, <<0>> if the target architecture is known to
1709 not sign extend addresses, and <<-1>> otherwise.
1713 bfd_get_sign_extend_vma (bfd
*abfd
)
1717 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
1718 return get_elf_backend_data (abfd
)->sign_extend_vma
;
1720 name
= bfd_get_target (abfd
);
1722 /* Return a proper value for DJGPP & PE COFF.
1723 This function is required for DWARF2 support, but there is
1724 no place to store this information in the COFF back end.
1725 Should enough other COFF targets add support for DWARF2,
1726 a place will have to be found. Until then, this hack will do. */
1727 if (startswith (name
, "coff-go32")
1728 || strcmp (name
, "pe-i386") == 0
1729 || strcmp (name
, "pei-i386") == 0
1730 || strcmp (name
, "pe-x86-64") == 0
1731 || strcmp (name
, "pei-x86-64") == 0
1732 || strcmp (name
, "pe-arm-wince-little") == 0
1733 || strcmp (name
, "pei-arm-wince-little") == 0
1734 || strcmp (name
, "aixcoff-rs6000") == 0
1735 || strcmp (name
, "aix5coff64-rs6000") == 0)
1738 if (startswith (name
, "mach-o"))
1741 bfd_set_error (bfd_error_wrong_format
);
1747 bfd_set_start_address
1750 bool bfd_set_start_address (bfd *abfd, bfd_vma vma);
1753 Make @var{vma} the entry point of output BFD @var{abfd}.
1756 Returns <<TRUE>> on success, <<FALSE>> otherwise.
1760 bfd_set_start_address (bfd
*abfd
, bfd_vma vma
)
1762 abfd
->start_address
= vma
;
1771 unsigned int bfd_get_gp_size (bfd *abfd);
1774 Return the maximum size of objects to be optimized using the GP
1775 register under MIPS ECOFF. This is typically set by the <<-G>>
1776 argument to the compiler, assembler or linker.
1780 bfd_get_gp_size (bfd
*abfd
)
1782 if (abfd
->format
== bfd_object
)
1784 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1785 return ecoff_data (abfd
)->gp_size
;
1786 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1787 return elf_gp_size (abfd
);
1797 void bfd_set_gp_size (bfd *abfd, unsigned int i);
1800 Set the maximum size of objects to be optimized using the GP
1801 register under ECOFF or MIPS ELF. This is typically set by
1802 the <<-G>> argument to the compiler, assembler or linker.
1806 bfd_set_gp_size (bfd
*abfd
, unsigned int i
)
1808 /* Don't try to set GP size on an archive or core file! */
1809 if (abfd
->format
!= bfd_object
)
1812 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1813 ecoff_data (abfd
)->gp_size
= i
;
1814 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1815 elf_gp_size (abfd
) = i
;
1818 /* Get the GP value. This is an internal function used by some of the
1819 relocation special_function routines on targets which support a GP
1823 _bfd_get_gp_value (bfd
*abfd
)
1827 if (abfd
->format
!= bfd_object
)
1830 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1831 return ecoff_data (abfd
)->gp
;
1832 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1833 return elf_gp (abfd
);
1838 /* Set the GP value. */
1841 _bfd_set_gp_value (bfd
*abfd
, bfd_vma v
)
1845 if (abfd
->format
!= bfd_object
)
1848 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1849 ecoff_data (abfd
)->gp
= v
;
1850 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1859 bfd_vma bfd_scan_vma (const char *string, const char **end, int base);
1862 Convert, like <<strtoul>>, a numerical expression
1863 @var{string} into a <<bfd_vma>> integer, and return that integer.
1864 (Though without as many bells and whistles as <<strtoul>>.)
1865 The expression is assumed to be unsigned (i.e., positive).
1866 If given a @var{base}, it is used as the base for conversion.
1867 A base of 0 causes the function to interpret the string
1868 in hex if a leading "0x" or "0X" is found, otherwise
1869 in octal if a leading zero is found, otherwise in decimal.
1871 If the value would overflow, the maximum <<bfd_vma>> value is
1876 bfd_scan_vma (const char *string
, const char **end
, int base
)
1880 unsigned int cutlim
;
1883 /* Let the host do it if possible. */
1884 if (sizeof (bfd_vma
) <= sizeof (unsigned long))
1885 return strtoul (string
, (char **) end
, base
);
1887 if (sizeof (bfd_vma
) <= sizeof (unsigned long long))
1888 return strtoull (string
, (char **) end
, base
);
1892 if (string
[0] == '0')
1894 if ((string
[1] == 'x') || (string
[1] == 'X'))
1901 if ((base
< 2) || (base
> 36))
1906 && (string
[1] == 'x' || string
[1] == 'X')
1907 && ISXDIGIT (string
[2]))
1912 cutoff
= (~ (bfd_vma
) 0) / (bfd_vma
) base
;
1913 cutlim
= (~ (bfd_vma
) 0) % (bfd_vma
) base
;
1921 if (ISDIGIT (digit
))
1922 digit
= digit
- '0';
1923 else if (ISALPHA (digit
))
1924 digit
= TOUPPER (digit
) - 'A' + 10;
1927 if (digit
>= (unsigned int) base
)
1929 if (value
> cutoff
|| (value
== cutoff
&& digit
> cutlim
))
1931 value
= value
* base
+ digit
;
1936 value
= ~ (bfd_vma
) 0;
1946 bfd_copy_private_header_data
1949 bool bfd_copy_private_header_data (bfd *ibfd, bfd *obfd);
1952 Copy private BFD header information from the BFD @var{ibfd} to the
1953 the BFD @var{obfd}. This copies information that may require
1954 sections to exist, but does not require symbol tables. Return
1955 <<true>> on success, <<false>> on error.
1956 Possible error returns are:
1958 o <<bfd_error_no_memory>> -
1959 Not enough memory exists to create private data for @var{obfd}.
1961 .#define bfd_copy_private_header_data(ibfd, obfd) \
1962 . BFD_SEND (obfd, _bfd_copy_private_header_data, \
1969 bfd_copy_private_bfd_data
1972 bool bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd);
1975 Copy private BFD information from the BFD @var{ibfd} to the
1976 the BFD @var{obfd}. Return <<TRUE>> on success, <<FALSE>> on error.
1977 Possible error returns are:
1979 o <<bfd_error_no_memory>> -
1980 Not enough memory exists to create private data for @var{obfd}.
1982 .#define bfd_copy_private_bfd_data(ibfd, obfd) \
1983 . BFD_SEND (obfd, _bfd_copy_private_bfd_data, \
1990 bfd_set_private_flags
1993 bool bfd_set_private_flags (bfd *abfd, flagword flags);
1996 Set private BFD flag information in the BFD @var{abfd}.
1997 Return <<TRUE>> on success, <<FALSE>> on error. Possible error
2000 o <<bfd_error_no_memory>> -
2001 Not enough memory exists to create private data for @var{obfd}.
2003 .#define bfd_set_private_flags(abfd, flags) \
2004 . BFD_SEND (abfd, _bfd_set_private_flags, (abfd, flags))
2013 The following functions exist but have not yet been documented.
2015 .#define bfd_sizeof_headers(abfd, info) \
2016 . BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, info))
2018 .#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
2019 . BFD_SEND (abfd, _bfd_find_nearest_line, \
2020 . (abfd, syms, sec, off, file, func, line, NULL))
2022 .#define bfd_find_nearest_line_discriminator(abfd, sec, syms, off, file, func, \
2024 . BFD_SEND (abfd, _bfd_find_nearest_line, \
2025 . (abfd, syms, sec, off, file, func, line, disc))
2027 .#define bfd_find_line(abfd, syms, sym, file, line) \
2028 . BFD_SEND (abfd, _bfd_find_line, \
2029 . (abfd, syms, sym, file, line))
2031 .#define bfd_find_inliner_info(abfd, file, func, line) \
2032 . BFD_SEND (abfd, _bfd_find_inliner_info, \
2033 . (abfd, file, func, line))
2035 .#define bfd_debug_info_start(abfd) \
2036 . BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
2038 .#define bfd_debug_info_end(abfd) \
2039 . BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
2041 .#define bfd_debug_info_accumulate(abfd, section) \
2042 . BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
2044 .#define bfd_stat_arch_elt(abfd, stat) \
2045 . BFD_SEND (abfd->my_archive ? abfd->my_archive : abfd, \
2046 . _bfd_stat_arch_elt, (abfd, stat))
2048 .#define bfd_update_armap_timestamp(abfd) \
2049 . BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))
2051 .#define bfd_set_arch_mach(abfd, arch, mach)\
2052 . BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
2054 .#define bfd_relax_section(abfd, section, link_info, again) \
2055 . BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
2057 .#define bfd_gc_sections(abfd, link_info) \
2058 . BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info))
2060 .#define bfd_lookup_section_flags(link_info, flag_info, section) \
2061 . BFD_SEND (abfd, _bfd_lookup_section_flags, (link_info, flag_info, section))
2063 .#define bfd_merge_sections(abfd, link_info) \
2064 . BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info))
2066 .#define bfd_is_group_section(abfd, sec) \
2067 . BFD_SEND (abfd, _bfd_is_group_section, (abfd, sec))
2069 .#define bfd_group_name(abfd, sec) \
2070 . BFD_SEND (abfd, _bfd_group_name, (abfd, sec))
2072 .#define bfd_discard_group(abfd, sec) \
2073 . BFD_SEND (abfd, _bfd_discard_group, (abfd, sec))
2075 .#define bfd_link_hash_table_create(abfd) \
2076 . BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
2078 .#define bfd_link_add_symbols(abfd, info) \
2079 . BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
2081 .#define bfd_link_just_syms(abfd, sec, info) \
2082 . BFD_SEND (abfd, _bfd_link_just_syms, (sec, info))
2084 .#define bfd_final_link(abfd, info) \
2085 . BFD_SEND (abfd, _bfd_final_link, (abfd, info))
2087 .#define bfd_free_cached_info(abfd) \
2088 . BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
2090 .#define bfd_get_dynamic_symtab_upper_bound(abfd) \
2091 . BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
2093 .#define bfd_print_private_bfd_data(abfd, file)\
2094 . BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file))
2096 .#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
2097 . BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
2099 .#define bfd_get_synthetic_symtab(abfd, count, syms, dyncount, dynsyms, ret) \
2100 . BFD_SEND (abfd, _bfd_get_synthetic_symtab, (abfd, count, syms, \
2101 . dyncount, dynsyms, ret))
2103 .#define bfd_get_dynamic_reloc_upper_bound(abfd) \
2104 . BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
2106 .#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
2107 . BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
2109 .extern bfd_byte *bfd_get_relocated_section_contents
2110 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *,
2111 . bool, asymbol **);
2117 bfd_get_relocated_section_contents (bfd
*abfd
,
2118 struct bfd_link_info
*link_info
,
2119 struct bfd_link_order
*link_order
,
2125 bfd_byte
*(*fn
) (bfd
*, struct bfd_link_info
*, struct bfd_link_order
*,
2126 bfd_byte
*, bool, asymbol
**);
2128 if (link_order
->type
== bfd_indirect_link_order
)
2130 abfd2
= link_order
->u
.indirect
.section
->owner
;
2137 fn
= abfd2
->xvec
->_bfd_get_relocated_section_contents
;
2139 return (*fn
) (abfd
, link_info
, link_order
, data
, relocatable
, symbols
);
2142 /* Record information about an ELF program header. */
2145 bfd_record_phdr (bfd
*abfd
,
2150 bfd_vma at
, /* Bytes. */
2151 bool includes_filehdr
,
2152 bool includes_phdrs
,
2156 struct elf_segment_map
*m
, **pm
;
2158 unsigned int opb
= bfd_octets_per_byte (abfd
, NULL
);
2160 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
2163 amt
= sizeof (struct elf_segment_map
);
2164 amt
+= ((bfd_size_type
) count
- 1) * sizeof (asection
*);
2165 m
= (struct elf_segment_map
*) bfd_zalloc (abfd
, amt
);
2171 m
->p_paddr
= at
* opb
;
2172 m
->p_flags_valid
= flags_valid
;
2173 m
->p_paddr_valid
= at_valid
;
2174 m
->includes_filehdr
= includes_filehdr
;
2175 m
->includes_phdrs
= includes_phdrs
;
2178 memcpy (m
->sections
, secs
, count
* sizeof (asection
*));
2180 for (pm
= &elf_seg_map (abfd
); *pm
!= NULL
; pm
= &(*pm
)->next
)
2188 /* Return true iff this target is 32-bit. */
2193 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
2195 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
2196 return bed
->s
->elfclass
== ELFCLASS32
;
2199 /* For non-ELF targets, use architecture information. */
2200 return bfd_arch_bits_per_address (abfd
) <= 32;
2204 /* bfd_sprintf_vma and bfd_fprintf_vma display an address in the
2205 target's address size. */
2208 bfd_sprintf_vma (bfd
*abfd ATTRIBUTE_UNUSED
, char *buf
, bfd_vma value
)
2213 sprintf (buf
, "%08lx", (unsigned long) value
& 0xffffffff);
2217 sprintf_vma (buf
, value
);
2221 bfd_fprintf_vma (bfd
*abfd ATTRIBUTE_UNUSED
, void *stream
, bfd_vma value
)
2226 fprintf ((FILE *) stream
, "%08lx", (unsigned long) value
& 0xffffffff);
2230 fprintf_vma ((FILE *) stream
, value
);
2238 bool bfd_alt_mach_code (bfd *abfd, int alternative);
2242 When more than one machine code number is available for the
2243 same machine type, this function can be used to switch between
2244 the preferred one (alternative == 0) and any others. Currently,
2245 only ELF supports this feature, with up to two alternate
2250 bfd_alt_mach_code (bfd
*abfd
, int alternative
)
2252 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
2256 switch (alternative
)
2259 code
= get_elf_backend_data (abfd
)->elf_machine_code
;
2263 code
= get_elf_backend_data (abfd
)->elf_machine_alt1
;
2269 code
= get_elf_backend_data (abfd
)->elf_machine_alt2
;
2278 elf_elfheader (abfd
)->e_machine
= code
;
2288 bfd_emul_get_maxpagesize
2291 bfd_vma bfd_emul_get_maxpagesize (const char *);
2294 Returns the maximum page size, in bytes, as determined by
2298 Returns the maximum page size in bytes for ELF, 0 otherwise.
2302 bfd_emul_get_maxpagesize (const char *emul
)
2304 const bfd_target
*target
;
2306 target
= bfd_find_target (emul
, NULL
);
2308 && target
->flavour
== bfd_target_elf_flavour
)
2309 return xvec_get_elf_backend_data (target
)->maxpagesize
;
2316 bfd_emul_get_commonpagesize
2319 bfd_vma bfd_emul_get_commonpagesize (const char *, bool);
2322 Returns the common page size, in bytes, as determined by
2326 Returns the common page size in bytes for ELF, 0 otherwise.
2330 bfd_emul_get_commonpagesize (const char *emul
, bool relro
)
2332 const bfd_target
*target
;
2334 target
= bfd_find_target (emul
, NULL
);
2336 && target
->flavour
== bfd_target_elf_flavour
)
2338 const struct elf_backend_data
*bed
;
2340 bed
= xvec_get_elf_backend_data (target
);
2342 return bed
->relropagesize
;
2344 return bed
->commonpagesize
;
2354 char *bfd_demangle (bfd *, const char *, int);
2357 Wrapper around cplus_demangle. Strips leading underscores and
2358 other such chars that would otherwise confuse the demangler.
2359 If passed a g++ v3 ABI mangled name, returns a buffer allocated
2360 with malloc holding the demangled name. Returns NULL otherwise
2361 and on memory alloc failure.
2365 bfd_demangle (bfd
*abfd
, const char *name
, int options
)
2368 const char *pre
, *suf
;
2372 skip_lead
= (abfd
!= NULL
2374 && bfd_get_symbol_leading_char (abfd
) == *name
);
2378 /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF
2379 or the MS PE format. These formats have a number of leading '.'s
2380 on at least some symbols, so we remove all dots to avoid
2381 confusing the demangler. */
2383 while (*name
== '.' || *name
== '$')
2385 pre_len
= name
- pre
;
2387 /* Strip off @plt and suchlike too. */
2389 suf
= strchr (name
, '@');
2392 alloc
= (char *) bfd_malloc (suf
- name
+ 1);
2395 memcpy (alloc
, name
, suf
- name
);
2396 alloc
[suf
- name
] = '\0';
2400 res
= cplus_demangle (name
, options
);
2408 size_t len
= strlen (pre
) + 1;
2409 alloc
= (char *) bfd_malloc (len
);
2412 memcpy (alloc
, pre
, len
);
2418 /* Put back any prefix or suffix. */
2419 if (pre_len
!= 0 || suf
!= NULL
)
2428 suf_len
= strlen (suf
) + 1;
2429 final
= (char *) bfd_malloc (pre_len
+ len
+ suf_len
);
2432 memcpy (final
, pre
, pre_len
);
2433 memcpy (final
+ pre_len
, res
, len
);
2434 memcpy (final
+ pre_len
+ len
, suf
, suf_len
);
2445 bfd_update_compression_header
2448 void bfd_update_compression_header
2449 (bfd *abfd, bfd_byte *contents, asection *sec);
2452 Set the compression header at CONTENTS of SEC in ABFD and update
2453 elf_section_flags for compression.
2457 bfd_update_compression_header (bfd
*abfd
, bfd_byte
*contents
,
2460 if ((abfd
->flags
& BFD_COMPRESS
) == 0)
2463 switch (bfd_get_flavour (abfd
))
2465 case bfd_target_elf_flavour
:
2466 if ((abfd
->flags
& BFD_COMPRESS_GABI
) != 0)
2468 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
2469 struct bfd_elf_section_data
* esd
= elf_section_data (sec
);
2471 /* Set the SHF_COMPRESSED bit. */
2472 elf_section_flags (sec
) |= SHF_COMPRESSED
;
2474 if (bed
->s
->elfclass
== ELFCLASS32
)
2476 Elf32_External_Chdr
*echdr
= (Elf32_External_Chdr
*) contents
;
2477 bfd_put_32 (abfd
, ELFCOMPRESS_ZLIB
, &echdr
->ch_type
);
2478 bfd_put_32 (abfd
, sec
->size
, &echdr
->ch_size
);
2479 bfd_put_32 (abfd
, 1 << sec
->alignment_power
,
2480 &echdr
->ch_addralign
);
2481 /* bfd_log2 (alignof (Elf32_Chdr)) */
2482 bfd_set_section_alignment (sec
, 2);
2483 esd
->this_hdr
.sh_addralign
= 4;
2487 Elf64_External_Chdr
*echdr
= (Elf64_External_Chdr
*) contents
;
2488 bfd_put_32 (abfd
, ELFCOMPRESS_ZLIB
, &echdr
->ch_type
);
2489 bfd_put_32 (abfd
, 0, &echdr
->ch_reserved
);
2490 bfd_put_64 (abfd
, sec
->size
, &echdr
->ch_size
);
2491 bfd_put_64 (abfd
, 1 << sec
->alignment_power
,
2492 &echdr
->ch_addralign
);
2493 /* bfd_log2 (alignof (Elf64_Chdr)) */
2494 bfd_set_section_alignment (sec
, 3);
2495 esd
->this_hdr
.sh_addralign
= 8;
2500 /* Clear the SHF_COMPRESSED bit. */
2501 elf_section_flags (sec
) &= ~SHF_COMPRESSED
;
2505 /* Write the zlib header. It should be "ZLIB" followed by
2506 the uncompressed section size, 8 bytes in big-endian
2508 memcpy (contents
, "ZLIB", 4);
2509 bfd_putb64 (sec
->size
, contents
+ 4);
2510 /* No way to keep the original alignment, just use 1 always. */
2511 bfd_set_section_alignment (sec
, 0);
2518 bfd_check_compression_header
2521 bool bfd_check_compression_header
2522 (bfd *abfd, bfd_byte *contents, asection *sec,
2523 bfd_size_type *uncompressed_size,
2524 unsigned int *uncompressed_alignment_power);
2527 Check the compression header at CONTENTS of SEC in ABFD and
2528 store the uncompressed size in UNCOMPRESSED_SIZE and the
2529 uncompressed data alignment in UNCOMPRESSED_ALIGNMENT_POWER
2530 if the compression header is valid.
2533 Return TRUE if the compression header is valid.
2537 bfd_check_compression_header (bfd
*abfd
, bfd_byte
*contents
,
2539 bfd_size_type
*uncompressed_size
,
2540 unsigned int *uncompressed_alignment_power
)
2542 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
2543 && (elf_section_flags (sec
) & SHF_COMPRESSED
) != 0)
2545 Elf_Internal_Chdr chdr
;
2546 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
2547 if (bed
->s
->elfclass
== ELFCLASS32
)
2549 Elf32_External_Chdr
*echdr
= (Elf32_External_Chdr
*) contents
;
2550 chdr
.ch_type
= bfd_get_32 (abfd
, &echdr
->ch_type
);
2551 chdr
.ch_size
= bfd_get_32 (abfd
, &echdr
->ch_size
);
2552 chdr
.ch_addralign
= bfd_get_32 (abfd
, &echdr
->ch_addralign
);
2556 Elf64_External_Chdr
*echdr
= (Elf64_External_Chdr
*) contents
;
2557 chdr
.ch_type
= bfd_get_32 (abfd
, &echdr
->ch_type
);
2558 chdr
.ch_size
= bfd_get_64 (abfd
, &echdr
->ch_size
);
2559 chdr
.ch_addralign
= bfd_get_64 (abfd
, &echdr
->ch_addralign
);
2561 if (chdr
.ch_type
== ELFCOMPRESS_ZLIB
2562 && chdr
.ch_addralign
== (chdr
.ch_addralign
& -chdr
.ch_addralign
))
2564 *uncompressed_size
= chdr
.ch_size
;
2565 *uncompressed_alignment_power
= bfd_log2 (chdr
.ch_addralign
);
2575 bfd_get_compression_header_size
2578 int bfd_get_compression_header_size (bfd *abfd, asection *sec);
2581 Return the size of the compression header of SEC in ABFD.
2584 Return the size of the compression header in bytes.
2588 bfd_get_compression_header_size (bfd
*abfd
, asection
*sec
)
2590 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
2594 if (!(abfd
->flags
& BFD_COMPRESS_GABI
))
2597 else if (!(elf_section_flags (sec
) & SHF_COMPRESSED
))
2600 if (get_elf_backend_data (abfd
)->s
->elfclass
== ELFCLASS32
)
2601 return sizeof (Elf32_External_Chdr
);
2603 return sizeof (Elf64_External_Chdr
);
2611 bfd_convert_section_size
2614 bfd_size_type bfd_convert_section_size
2615 (bfd *ibfd, asection *isec, bfd *obfd, bfd_size_type size);
2618 Convert the size @var{size} of the section @var{isec} in input
2619 BFD @var{ibfd} to the section size in output BFD @var{obfd}.
2623 bfd_convert_section_size (bfd
*ibfd
, sec_ptr isec
, bfd
*obfd
,
2626 bfd_size_type hdr_size
;
2628 /* Do nothing if either input or output aren't ELF. */
2629 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2630 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
2633 /* Do nothing if ELF classes of input and output are the same. */
2634 if (get_elf_backend_data (ibfd
)->s
->elfclass
2635 == get_elf_backend_data (obfd
)->s
->elfclass
)
2638 /* Convert GNU property size. */
2639 if (startswith (isec
->name
, NOTE_GNU_PROPERTY_SECTION_NAME
))
2640 return _bfd_elf_convert_gnu_property_size (ibfd
, obfd
);
2642 /* Do nothing if input file will be decompressed. */
2643 if ((ibfd
->flags
& BFD_DECOMPRESS
))
2646 /* Do nothing if the input section isn't a SHF_COMPRESSED section. */
2647 hdr_size
= bfd_get_compression_header_size (ibfd
, isec
);
2651 /* Adjust the size of the output SHF_COMPRESSED section. */
2652 if (hdr_size
== sizeof (Elf32_External_Chdr
))
2653 return (size
- sizeof (Elf32_External_Chdr
)
2654 + sizeof (Elf64_External_Chdr
));
2656 return (size
- sizeof (Elf64_External_Chdr
)
2657 + sizeof (Elf32_External_Chdr
));
2662 bfd_convert_section_contents
2665 bool bfd_convert_section_contents
2666 (bfd *ibfd, asection *isec, bfd *obfd,
2667 bfd_byte **ptr, bfd_size_type *ptr_size);
2670 Convert the contents, stored in @var{*ptr}, of the section
2671 @var{isec} in input BFD @var{ibfd} to output BFD @var{obfd}
2672 if needed. The original buffer pointed to by @var{*ptr} may
2673 be freed and @var{*ptr} is returned with memory malloc'd by this
2674 function, and the new size written to @var{ptr_size}.
2678 bfd_convert_section_contents (bfd
*ibfd
, sec_ptr isec
, bfd
*obfd
,
2679 bfd_byte
**ptr
, bfd_size_type
*ptr_size
)
2682 bfd_size_type ihdr_size
, ohdr_size
, size
;
2683 Elf_Internal_Chdr chdr
;
2686 /* Do nothing if either input or output aren't ELF. */
2687 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2688 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
2691 /* Do nothing if ELF classes of input and output are the same. */
2692 if (get_elf_backend_data (ibfd
)->s
->elfclass
2693 == get_elf_backend_data (obfd
)->s
->elfclass
)
2696 /* Convert GNU properties. */
2697 if (startswith (isec
->name
, NOTE_GNU_PROPERTY_SECTION_NAME
))
2698 return _bfd_elf_convert_gnu_properties (ibfd
, isec
, obfd
, ptr
,
2701 /* Do nothing if input file will be decompressed. */
2702 if ((ibfd
->flags
& BFD_DECOMPRESS
))
2705 /* Do nothing if the input section isn't a SHF_COMPRESSED section. */
2706 ihdr_size
= bfd_get_compression_header_size (ibfd
, isec
);
2710 /* PR 25221. Check for corrupt input sections. */
2711 if (ihdr_size
> bfd_get_section_limit (ibfd
, isec
))
2712 /* FIXME: Issue a warning about a corrupt
2713 compression header size field ? */
2718 /* Convert the contents of the input SHF_COMPRESSED section to
2719 output. Get the input compression header and the size of the
2720 output compression header. */
2721 if (ihdr_size
== sizeof (Elf32_External_Chdr
))
2723 Elf32_External_Chdr
*echdr
= (Elf32_External_Chdr
*) contents
;
2724 chdr
.ch_type
= bfd_get_32 (ibfd
, &echdr
->ch_type
);
2725 chdr
.ch_size
= bfd_get_32 (ibfd
, &echdr
->ch_size
);
2726 chdr
.ch_addralign
= bfd_get_32 (ibfd
, &echdr
->ch_addralign
);
2728 ohdr_size
= sizeof (Elf64_External_Chdr
);
2730 use_memmove
= false;
2732 else if (ihdr_size
!= sizeof (Elf64_External_Chdr
))
2734 /* FIXME: Issue a warning about a corrupt
2735 compression header size field ? */
2740 Elf64_External_Chdr
*echdr
= (Elf64_External_Chdr
*) contents
;
2741 chdr
.ch_type
= bfd_get_32 (ibfd
, &echdr
->ch_type
);
2742 chdr
.ch_size
= bfd_get_64 (ibfd
, &echdr
->ch_size
);
2743 chdr
.ch_addralign
= bfd_get_64 (ibfd
, &echdr
->ch_addralign
);
2745 ohdr_size
= sizeof (Elf32_External_Chdr
);
2749 size
= bfd_section_size (isec
) - ihdr_size
+ ohdr_size
;
2752 contents
= (bfd_byte
*) bfd_malloc (size
);
2753 if (contents
== NULL
)
2757 /* Write out the output compression header. */
2758 if (ohdr_size
== sizeof (Elf32_External_Chdr
))
2760 Elf32_External_Chdr
*echdr
= (Elf32_External_Chdr
*) contents
;
2761 bfd_put_32 (obfd
, ELFCOMPRESS_ZLIB
, &echdr
->ch_type
);
2762 bfd_put_32 (obfd
, chdr
.ch_size
, &echdr
->ch_size
);
2763 bfd_put_32 (obfd
, chdr
.ch_addralign
, &echdr
->ch_addralign
);
2767 Elf64_External_Chdr
*echdr
= (Elf64_External_Chdr
*) contents
;
2768 bfd_put_32 (obfd
, ELFCOMPRESS_ZLIB
, &echdr
->ch_type
);
2769 bfd_put_32 (obfd
, 0, &echdr
->ch_reserved
);
2770 bfd_put_64 (obfd
, chdr
.ch_size
, &echdr
->ch_size
);
2771 bfd_put_64 (obfd
, chdr
.ch_addralign
, &echdr
->ch_addralign
);
2774 /* Copy the compressed contents. */
2776 memmove (contents
+ ohdr_size
, *ptr
+ ihdr_size
, size
- ohdr_size
);
2779 memcpy (contents
+ ohdr_size
, *ptr
+ ihdr_size
, size
- ohdr_size
);
2788 /* Get the linker information. */
2790 struct bfd_link_info
*
2791 _bfd_get_link_info (bfd
*abfd
)
2793 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
2796 return elf_link_info (abfd
);