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 . {* The archive plugin file descriptor. *}
280 . int archive_plugin_fd;
282 . {* The number of opens on the archive plugin file descriptor. *}
283 . unsigned int archive_plugin_fd_open_count;
285 . {* A field used by _bfd_generic_link_add_archive_symbols. This will
286 . be used only for archive elements. *}
289 . {* The total size of memory from bfd_alloc. *}
290 . bfd_size_type alloc_size;
292 . {* Stuff only useful for object files:
293 . The start address. *}
294 . bfd_vma start_address;
296 . {* Symbol table for output BFD (with symcount entries).
297 . Also used by the linker to cache input BFD symbols. *}
298 . struct bfd_symbol **outsymbols;
300 . {* Used for input and output. *}
301 . unsigned int symcount;
303 . {* Used for slurped dynamic symbol tables. *}
304 . unsigned int dynsymcount;
306 . {* Pointer to structure which contains architecture information. *}
307 . const struct bfd_arch_info *arch_info;
309 . {* Cached length of file for bfd_get_size. 0 until bfd_get_size is
310 . called, 1 if stat returns an error or the file size is too large to
311 . return in ufile_ptr. Both 0 and 1 should be treated as "unknown". *}
314 . {* Stuff only useful for archives. *}
316 . struct bfd *my_archive; {* The containing archive BFD. *}
317 . struct bfd *archive_next; {* The next BFD in the archive. *}
318 . struct bfd *archive_head; {* The first BFD in the archive. *}
319 . struct bfd *nested_archives; {* List of nested archive in a flattened
323 . {* For input BFDs, a chain of BFDs involved in a link. *}
325 . {* For output BFD, the linker hash table. *}
326 . struct bfd_link_hash_table *hash;
329 . {* Used by the back end to hold private data. *}
332 . struct aout_data_struct *aout_data;
333 . struct artdata *aout_ar_data;
334 . struct coff_tdata *coff_obj_data;
335 . struct pe_tdata *pe_obj_data;
336 . struct xcoff_tdata *xcoff_obj_data;
337 . struct ecoff_tdata *ecoff_obj_data;
338 . struct srec_data_struct *srec_data;
339 . struct verilog_data_struct *verilog_data;
340 . struct ihex_data_struct *ihex_data;
341 . struct tekhex_data_struct *tekhex_data;
342 . struct elf_obj_tdata *elf_obj_data;
343 . struct mmo_data_struct *mmo_data;
344 . struct sun_core_struct *sun_core_data;
345 . struct sco5_core_struct *sco5_core_data;
346 . struct trad_core_struct *trad_core_data;
347 . struct som_data_struct *som_data;
348 . struct hpux_core_struct *hpux_core_data;
349 . struct hppabsd_core_struct *hppabsd_core_data;
350 . struct sgi_core_struct *sgi_core_data;
351 . struct lynx_core_struct *lynx_core_data;
352 . struct osf_core_struct *osf_core_data;
353 . struct cisco_core_struct *cisco_core_data;
354 . struct versados_data_struct *versados_data;
355 . struct netbsd_core_struct *netbsd_core_data;
356 . struct mach_o_data_struct *mach_o_data;
357 . struct mach_o_fat_data_struct *mach_o_fat_data;
358 . struct plugin_data_struct *plugin_data;
359 . struct bfd_pef_data_struct *pef_data;
360 . struct bfd_pef_xlib_data_struct *pef_xlib_data;
361 . struct bfd_sym_data_struct *sym_data;
366 . {* Used by the application to hold private data. *}
369 . {* Where all the allocated stuff under this BFD goes. This is a
370 . struct objalloc *, but we use void * to avoid requiring the inclusion
374 . {* For input BFDs, the build ID, if the object has one. *}
375 . const struct bfd_build_id *build_id;
378 .static inline const char *
379 .bfd_get_filename (const bfd *abfd)
381 . return abfd->filename;
385 .bfd_get_cacheable (const bfd *abfd)
387 . return abfd->cacheable;
390 .static inline enum bfd_format
391 .bfd_get_format (const bfd *abfd)
393 . return abfd->format;
396 .static inline flagword
397 .bfd_get_file_flags (const bfd *abfd)
399 . return abfd->flags;
402 .static inline bfd_vma
403 .bfd_get_start_address (const bfd *abfd)
405 . return abfd->start_address;
408 .static inline unsigned int
409 .bfd_get_symcount (const bfd *abfd)
411 . return abfd->symcount;
414 .static inline unsigned int
415 .bfd_get_dynamic_symcount (const bfd *abfd)
417 . return abfd->dynsymcount;
420 .static inline struct bfd_symbol **
421 .bfd_get_outsymbols (const bfd *abfd)
423 . return abfd->outsymbols;
426 .static inline unsigned int
427 .bfd_count_sections (const bfd *abfd)
429 . return abfd->section_count;
433 .bfd_has_map (const bfd *abfd)
435 . return abfd->has_armap;
439 .bfd_is_thin_archive (const bfd *abfd)
441 . return abfd->is_thin_archive;
444 .static inline void *
445 .bfd_usrdata (const bfd *abfd)
447 . return abfd->usrdata;
450 .{* See note beside bfd_set_section_userdata. *}
452 .bfd_set_cacheable (bfd * abfd, bool val)
454 . abfd->cacheable = val;
459 .bfd_set_thin_archive (bfd *abfd, bool val)
461 . abfd->is_thin_archive = val;
465 .bfd_set_usrdata (bfd *abfd, void *val)
467 . abfd->usrdata = val;
470 .static inline asection *
471 .bfd_asymbol_section (const asymbol *sy)
473 . return sy->section;
476 .static inline bfd_vma
477 .bfd_asymbol_value (const asymbol *sy)
479 . return sy->section->vma + sy->value;
482 .static inline const char *
483 .bfd_asymbol_name (const asymbol *sy)
488 .static inline struct bfd *
489 .bfd_asymbol_bfd (const asymbol *sy)
491 . return sy->the_bfd;
495 .bfd_set_asymbol_name (asymbol *sy, const char *name)
500 .static inline bfd_size_type
501 .bfd_get_section_limit_octets (const bfd *abfd, const asection *sec)
503 . if (abfd->direction != write_direction && sec->rawsize != 0)
504 . return sec->rawsize;
508 .{* Find the address one past the end of SEC. *}
509 .static inline bfd_size_type
510 .bfd_get_section_limit (const bfd *abfd, const asection *sec)
512 . return (bfd_get_section_limit_octets (abfd, sec)
513 . / bfd_octets_per_byte (abfd, sec));
516 .{* Functions to handle insertion and deletion of a bfd's sections. These
517 . only handle the list pointers, ie. do not adjust section_count,
518 . target_index etc. *}
520 .bfd_section_list_remove (bfd *abfd, asection *s)
522 . asection *next = s->next;
523 . asection *prev = s->prev;
527 . abfd->sections = next;
531 . abfd->section_last = prev;
535 .bfd_section_list_append (bfd *abfd, asection *s)
538 . if (abfd->section_last)
540 . s->prev = abfd->section_last;
541 . abfd->section_last->next = s;
546 . abfd->sections = s;
548 . abfd->section_last = s;
552 .bfd_section_list_prepend (bfd *abfd, asection *s)
555 . if (abfd->sections)
557 . s->next = abfd->sections;
558 . abfd->sections->prev = s;
563 . abfd->section_last = s;
565 . abfd->sections = s;
569 .bfd_section_list_insert_after (bfd *abfd, asection *a, asection *s)
571 . asection *next = a->next;
578 . abfd->section_last = s;
582 .bfd_section_list_insert_before (bfd *abfd, asection *b, asection *s)
584 . asection *prev = b->prev;
591 . abfd->sections = s;
595 .bfd_section_removed_from_list (const bfd *abfd, const asection *s)
597 . return s->next ? s->next->prev != s : abfd->section_last != s;
606 #include "libiberty.h"
607 #include "demangle.h"
608 #include "safe-ctype.h"
611 #include "coff/internal.h"
612 #include "coff/sym.h"
614 #include "libecoff.h"
619 #define EXIT_FAILURE 1
623 /* provide storage for subsystem, stack and heap data which may have been
624 passed in on the command line. Ld puts this data into a bfd_link_info
625 struct which ultimately gets passed in to the bfd. When it arrives, copy
626 it to the following struct so that the data will be available in coffcode.h
627 where it is needed. The typedef's used are defined in bfd.h */
631 Error reporting, Miscellaneous, typedef bfd, BFD front end
636 Most BFD functions return nonzero on success (check their
637 individual documentation for precise semantics). On an error,
638 they call <<bfd_set_error>> to set an error condition that callers
639 can check by calling <<bfd_get_error>>.
640 If that returns <<bfd_error_system_call>>, then check
643 The easiest way to report a BFD error to the user is to
647 Type <<bfd_error_type>>
649 The values returned by <<bfd_get_error>> are defined by the
650 enumerated type <<bfd_error_type>>.
654 .typedef enum bfd_error
656 . bfd_error_no_error = 0,
657 . bfd_error_system_call,
658 . bfd_error_invalid_target,
659 . bfd_error_wrong_format,
660 . bfd_error_wrong_object_format,
661 . bfd_error_invalid_operation,
662 . bfd_error_no_memory,
663 . bfd_error_no_symbols,
664 . bfd_error_no_armap,
665 . bfd_error_no_more_archived_files,
666 . bfd_error_malformed_archive,
667 . bfd_error_missing_dso,
668 . bfd_error_file_not_recognized,
669 . bfd_error_file_ambiguously_recognized,
670 . bfd_error_no_contents,
671 . bfd_error_nonrepresentable_section,
672 . bfd_error_no_debug_section,
673 . bfd_error_bad_value,
674 . bfd_error_file_truncated,
675 . bfd_error_file_too_big,
677 . bfd_error_on_input,
678 . bfd_error_invalid_error_code
684 static bfd_error_type bfd_error
= bfd_error_no_error
;
685 static bfd
*input_bfd
= NULL
;
686 static bfd_error_type input_error
= bfd_error_no_error
;
688 const char *const bfd_errmsgs
[] =
691 N_("system call error"),
692 N_("invalid bfd target"),
693 N_("file in wrong format"),
694 N_("archive object file in wrong format"),
695 N_("invalid operation"),
696 N_("memory exhausted"),
698 N_("archive has no index; run ranlib to add one"),
699 N_("no more archived files"),
700 N_("malformed archive"),
701 N_("DSO missing from command line"),
702 N_("file format not recognized"),
703 N_("file format is ambiguous"),
704 N_("section has no contents"),
705 N_("nonrepresentable section on output"),
706 N_("symbol needs debug section which does not exist"),
708 N_("file truncated"),
710 N_("sorry, cannot handle this file"),
711 N_("error reading %s: %s"),
712 N_("#<invalid error code>")
720 bfd_error_type bfd_get_error (void);
723 Return the current BFD error condition.
737 void bfd_set_error (bfd_error_type error_tag);
740 Set the BFD error condition to be @var{error_tag}.
742 @var{error_tag} must not be bfd_error_on_input. Use
743 bfd_set_input_error for input errors instead.
747 bfd_set_error (bfd_error_type error_tag
)
749 bfd_error
= error_tag
;
750 if (bfd_error
>= bfd_error_on_input
)
759 void bfd_set_input_error (bfd *input, bfd_error_type error_tag);
763 Set the BFD error condition to be bfd_error_on_input.
764 @var{input} is the input bfd where the error occurred, and
765 @var{error_tag} the bfd_error_type error.
769 bfd_set_input_error (bfd
*input
, bfd_error_type error_tag
)
771 /* This is an error that occurred during bfd_close when writing an
772 archive, but on one of the input files. */
773 bfd_error
= bfd_error_on_input
;
775 input_error
= error_tag
;
776 if (input_error
>= bfd_error_on_input
)
785 const char *bfd_errmsg (bfd_error_type error_tag);
788 Return a string describing the error @var{error_tag}, or
789 the system error if @var{error_tag} is <<bfd_error_system_call>>.
793 bfd_errmsg (bfd_error_type error_tag
)
798 if (error_tag
== bfd_error_on_input
)
801 const char *msg
= bfd_errmsg (input_error
);
803 if (asprintf (&buf
, _(bfd_errmsgs
[error_tag
]),
804 bfd_get_filename (input_bfd
), msg
) != -1)
807 /* Ick, what to do on out of memory? */
811 if (error_tag
== bfd_error_system_call
)
812 return xstrerror (errno
);
814 if (error_tag
> bfd_error_invalid_error_code
)
815 error_tag
= bfd_error_invalid_error_code
; /* sanity check */
817 return _(bfd_errmsgs
[error_tag
]);
825 void bfd_perror (const char *message);
828 Print to the standard error stream a string describing the
829 last BFD error that occurred, or the last system error if
830 the last BFD error was a system call failure. If @var{message}
831 is non-NULL and non-empty, the error string printed is preceded
832 by @var{message}, a colon, and a space. It is followed by a newline.
836 bfd_perror (const char *message
)
839 if (message
== NULL
|| *message
== '\0')
840 fprintf (stderr
, "%s\n", bfd_errmsg (bfd_get_error ()));
842 fprintf (stderr
, "%s: %s\n", message
, bfd_errmsg (bfd_get_error ()));
850 Some BFD functions want to print messages describing the
851 problem. They call a BFD error handler function. This
852 function may be overridden by the program.
854 The BFD error handler acts like vprintf.
858 .typedef void (*bfd_error_handler_type) (const char *, va_list);
862 /* The program name used when printing BFD error messages. */
864 static const char *_bfd_error_program_name
;
866 /* Support for positional parameters. */
868 union _bfd_doprnt_args
888 /* This macro and _bfd_doprnt taken from libiberty _doprnt.c, tidied a
889 little and extended to handle '%pA', '%pB' and positional parameters. */
891 #define PRINT_TYPE(TYPE, FIELD) \
894 TYPE value = (TYPE) args[arg_no].FIELD; \
895 result = fprintf (stream, specifier, value); \
899 _bfd_doprnt (FILE *stream
, const char *format
, union _bfd_doprnt_args
*args
)
901 const char *ptr
= format
;
903 int total_printed
= 0;
904 unsigned int arg_count
= 0;
912 /* While we have regular characters, print them. */
913 char *end
= strchr (ptr
, '%');
915 result
= fprintf (stream
, "%.*s", (int) (end
- ptr
), ptr
);
917 result
= fprintf (stream
, "%s", ptr
);
920 else if (ptr
[1] == '%')
928 /* We have a format specifier! */
929 char *sptr
= specifier
;
930 int wide_width
= 0, short_width
= 0;
933 /* Copy the % and move forward. */
936 /* Check for a positional parameter. */
938 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
944 /* Move past flags. */
945 while (strchr ("-+ #0'I", *ptr
))
951 unsigned int arg_index
;
954 arg_index
= arg_count
;
955 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
957 arg_index
= *ptr
- '1';
960 value
= abs (args
[arg_index
].i
);
962 sptr
+= sprintf (sptr
, "%d", value
);
965 /* Handle explicit numeric value. */
966 while (ISDIGIT (*ptr
))
972 /* Copy and go past the period. */
977 unsigned int arg_index
;
980 arg_index
= arg_count
;
981 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
983 arg_index
= *ptr
- '1';
986 value
= abs (args
[arg_index
].i
);
988 sptr
+= sprintf (sptr
, "%d", value
);
991 /* Handle explicit numeric value. */
992 while (ISDIGIT (*ptr
))
995 while (strchr ("hlL", *ptr
))
1014 /* Copy the type specifier, and NULL terminate. */
1017 if ((int) arg_no
< 0)
1030 /* Short values are promoted to int, so just copy it
1031 as an int and trust the C library printf to cast it
1032 to the right width. */
1034 PRINT_TYPE (int, i
);
1040 PRINT_TYPE (int, i
);
1043 PRINT_TYPE (long, l
);
1047 #if defined (__MSVCRT__)
1054 PRINT_TYPE (long long, ll
);
1066 if (wide_width
== 0)
1067 PRINT_TYPE (double, d
);
1069 PRINT_TYPE (long double, ld
);
1073 PRINT_TYPE (char *, p
);
1080 const char *group
= NULL
;
1081 struct coff_comdat_info
*ci
;
1084 sec
= (asection
*) args
[arg_no
].p
;
1086 /* Invoking %pA with a null section pointer is an
1091 && bfd_get_flavour (abfd
) == bfd_target_elf_flavour
1092 && elf_next_in_group (sec
) != NULL
1093 && (sec
->flags
& SEC_GROUP
) == 0)
1094 group
= elf_group_name (sec
);
1095 else if (abfd
!= NULL
1096 && bfd_get_flavour (abfd
) == bfd_target_coff_flavour
1097 && (ci
= bfd_coff_get_comdat_section (sec
->owner
,
1101 result
= fprintf (stream
, "%s[%s]", sec
->name
, group
);
1103 result
= fprintf (stream
, "%s", sec
->name
);
1105 else if (*ptr
== 'B')
1110 abfd
= (bfd
*) args
[arg_no
].p
;
1112 /* Invoking %pB with a null bfd pointer is an
1115 else if (abfd
->my_archive
1116 && !bfd_is_thin_archive (abfd
->my_archive
))
1117 result
= fprintf (stream
, "%s(%s)",
1118 bfd_get_filename (abfd
->my_archive
),
1119 bfd_get_filename (abfd
));
1121 result
= fprintf (stream
, "%s", bfd_get_filename (abfd
));
1124 PRINT_TYPE (void *, p
);
1133 total_printed
+= result
;
1136 return total_printed
;
1139 /* First pass over FORMAT to gather ARGS. Returns number of args. */
1142 _bfd_doprnt_scan (const char *format
, union _bfd_doprnt_args
*args
)
1144 const char *ptr
= format
;
1145 unsigned int arg_count
= 0;
1147 while (*ptr
!= '\0')
1151 ptr
= strchr (ptr
, '%');
1155 else if (ptr
[1] == '%')
1159 int wide_width
= 0, short_width
= 0;
1160 unsigned int arg_no
;
1165 /* Check for a positional parameter. */
1167 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
1169 arg_no
= *ptr
- '1';
1173 /* Move past flags. */
1174 while (strchr ("-+ #0'I", *ptr
))
1179 unsigned int arg_index
;
1182 arg_index
= arg_count
;
1183 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
1185 arg_index
= *ptr
- '1';
1190 args
[arg_index
].type
= Int
;
1194 /* Handle explicit numeric value. */
1195 while (ISDIGIT (*ptr
))
1204 unsigned int arg_index
;
1207 arg_index
= arg_count
;
1208 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
1210 arg_index
= *ptr
- '1';
1215 args
[arg_index
].type
= Int
;
1219 /* Handle explicit numeric value. */
1220 while (ISDIGIT (*ptr
))
1223 while (strchr ("hlL", *ptr
))
1243 if ((int) arg_no
< 0)
1271 arg_type
= LongLong
;
1283 if (wide_width
== 0)
1286 arg_type
= LongDouble
;
1293 if (*ptr
== 'A' || *ptr
== 'B')
1303 args
[arg_no
].type
= arg_type
;
1312 error_handler_internal (const char *fmt
, va_list ap
)
1314 unsigned int i
, arg_count
;
1315 union _bfd_doprnt_args args
[9];
1317 for (i
= 0; i
< sizeof (args
) / sizeof (args
[0]); i
++)
1320 arg_count
= _bfd_doprnt_scan (fmt
, args
);
1321 for (i
= 0; i
< arg_count
; i
++)
1323 switch (args
[i
].type
)
1326 args
[i
].i
= va_arg (ap
, int);
1329 args
[i
].l
= va_arg (ap
, long);
1332 args
[i
].ll
= va_arg (ap
, long long);
1335 args
[i
].d
= va_arg (ap
, double);
1338 args
[i
].ld
= va_arg (ap
, long double);
1341 args
[i
].p
= va_arg (ap
, void *);
1348 /* PR 4992: Don't interrupt output being sent to stdout. */
1351 if (_bfd_error_program_name
!= NULL
)
1352 fprintf (stderr
, "%s: ", _bfd_error_program_name
);
1354 fprintf (stderr
, "BFD: ");
1356 _bfd_doprnt (stderr
, fmt
, args
);
1358 /* On AIX, putc is implemented as a macro that triggers a -Wunused-value
1359 warning, so use the fputc function to avoid it. */
1360 fputc ('\n', stderr
);
1364 /* This is a function pointer to the routine which should handle BFD
1365 error messages. It is called when a BFD routine encounters an
1366 error for which it wants to print a message. Going through a
1367 function pointer permits a program linked against BFD to intercept
1368 the messages and deal with them itself. */
1370 static bfd_error_handler_type _bfd_error_internal
= error_handler_internal
;
1377 void _bfd_error_handler (const char *fmt, ...) ATTRIBUTE_PRINTF_1;
1380 This is the default routine to handle BFD error messages.
1381 Like fprintf (stderr, ...), but also handles some extra format
1384 %pA section name from section. For group components, prints
1386 %pB file name from bfd. For archive components, prints
1389 Beware: Only supports a maximum of 9 format arguments.
1393 _bfd_error_handler (const char *fmt
, ...)
1398 _bfd_error_internal (fmt
, ap
);
1404 bfd_set_error_handler
1407 bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type);
1410 Set the BFD error handler function. Returns the previous
1414 bfd_error_handler_type
1415 bfd_set_error_handler (bfd_error_handler_type pnew
)
1417 bfd_error_handler_type pold
;
1419 pold
= _bfd_error_internal
;
1420 _bfd_error_internal
= pnew
;
1426 bfd_set_error_program_name
1429 void bfd_set_error_program_name (const char *);
1432 Set the program name to use when printing a BFD error. This
1433 is printed before the error message followed by a colon and
1434 space. The string must not be changed after it is passed to
1439 bfd_set_error_program_name (const char *name
)
1441 _bfd_error_program_name
= name
;
1448 If BFD finds an internal inconsistency, the bfd assert
1449 handler is called with information on the BFD version, BFD
1450 source file and line. If this happens, most programs linked
1451 against BFD are expected to want to exit with an error, or mark
1452 the current BFD operation as failed, so it is recommended to
1453 override the default handler, which just calls
1454 _bfd_error_handler and continues.
1458 .typedef void (*bfd_assert_handler_type) (const char *bfd_formatmsg,
1459 . const char *bfd_version,
1460 . const char *bfd_file,
1465 /* Note the use of bfd_ prefix on the parameter names above: we want to
1466 show which one is the message and which is the version by naming the
1467 parameters, but avoid polluting the program-using-bfd namespace as
1468 the typedef is visible in the exported headers that the program
1469 includes. Below, it's just for consistency. */
1472 _bfd_default_assert_handler (const char *bfd_formatmsg
,
1473 const char *bfd_version
,
1474 const char *bfd_file
,
1478 _bfd_error_handler (bfd_formatmsg
, bfd_version
, bfd_file
, bfd_line
);
1481 /* Similar to _bfd_error_handler, a program can decide to exit on an
1482 internal BFD error. We use a non-variadic type to simplify passing
1483 on parameters to other functions, e.g. _bfd_error_handler. */
1485 static bfd_assert_handler_type _bfd_assert_handler
= _bfd_default_assert_handler
;
1489 bfd_set_assert_handler
1492 bfd_assert_handler_type bfd_set_assert_handler (bfd_assert_handler_type);
1495 Set the BFD assert handler function. Returns the previous
1499 bfd_assert_handler_type
1500 bfd_set_assert_handler (bfd_assert_handler_type pnew
)
1502 bfd_assert_handler_type pold
;
1504 pold
= _bfd_assert_handler
;
1505 _bfd_assert_handler
= pnew
;
1511 Miscellaneous, Memory Usage, Error reporting, BFD front end
1517 Miscellaneous functions
1522 bfd_get_reloc_upper_bound
1525 long bfd_get_reloc_upper_bound (bfd *abfd, asection *sect);
1528 Return the number of bytes required to store the
1529 relocation information associated with section @var{sect}
1530 attached to bfd @var{abfd}. If an error occurs, return -1.
1535 bfd_get_reloc_upper_bound (bfd
*abfd
, sec_ptr asect
)
1537 if (abfd
->format
!= bfd_object
)
1539 bfd_set_error (bfd_error_invalid_operation
);
1543 return BFD_SEND (abfd
, _get_reloc_upper_bound
, (abfd
, asect
));
1548 bfd_canonicalize_reloc
1551 long bfd_canonicalize_reloc
1552 (bfd *abfd, asection *sec, arelent **loc, asymbol **syms);
1555 Call the back end associated with the open BFD
1556 @var{abfd} and translate the external form of the relocation
1557 information attached to @var{sec} into the internal canonical
1558 form. Place the table into memory at @var{loc}, which has
1559 been preallocated, usually by a call to
1560 <<bfd_get_reloc_upper_bound>>. Returns the number of relocs, or
1563 The @var{syms} table is also needed for horrible internal magic
1568 bfd_canonicalize_reloc (bfd
*abfd
,
1573 if (abfd
->format
!= bfd_object
)
1575 bfd_set_error (bfd_error_invalid_operation
);
1579 return BFD_SEND (abfd
, _bfd_canonicalize_reloc
,
1580 (abfd
, asect
, location
, symbols
));
1589 (bfd *abfd, asection *sec, arelent **rel, unsigned int count);
1592 Set the relocation pointer and count within
1593 section @var{sec} to the values @var{rel} and @var{count}.
1594 The argument @var{abfd} is ignored.
1596 .#define bfd_set_reloc(abfd, asect, location, count) \
1597 . BFD_SEND (abfd, _bfd_set_reloc, (abfd, asect, location, count))
1605 bool bfd_set_file_flags (bfd *abfd, flagword flags);
1608 Set the flag word in the BFD @var{abfd} to the value @var{flags}.
1610 Possible errors are:
1611 o <<bfd_error_wrong_format>> - The target bfd was not of object format.
1612 o <<bfd_error_invalid_operation>> - The target bfd was open for reading.
1613 o <<bfd_error_invalid_operation>> -
1614 The flag word contained a bit which was not applicable to the
1615 type of file. E.g., an attempt was made to set the <<D_PAGED>> bit
1616 on a BFD format which does not support demand paging.
1621 bfd_set_file_flags (bfd
*abfd
, flagword flags
)
1623 if (abfd
->format
!= bfd_object
)
1625 bfd_set_error (bfd_error_wrong_format
);
1629 if (bfd_read_p (abfd
))
1631 bfd_set_error (bfd_error_invalid_operation
);
1635 abfd
->flags
= flags
;
1636 if ((flags
& bfd_applicable_file_flags (abfd
)) != flags
)
1638 bfd_set_error (bfd_error_invalid_operation
);
1646 bfd_assert (const char *file
, int line
)
1648 /* xgettext:c-format */
1649 (*_bfd_assert_handler
) (_("BFD %s assertion fail %s:%d"),
1650 BFD_VERSION_STRING
, file
, line
);
1653 /* A more or less friendly abort message. In libbfd.h abort is
1654 defined to call this function. */
1657 _bfd_abort (const char *file
, int line
, const char *fn
)
1661 /* xgettext:c-format */
1662 (_("BFD %s internal error, aborting at %s:%d in %s\n"),
1663 BFD_VERSION_STRING
, file
, line
, fn
);
1666 /* xgettext:c-format */
1667 (_("BFD %s internal error, aborting at %s:%d\n"),
1668 BFD_VERSION_STRING
, file
, line
);
1669 _bfd_error_handler (_("Please report this bug.\n"));
1670 _exit (EXIT_FAILURE
);
1678 int bfd_get_arch_size (bfd *abfd);
1681 Returns the normalized architecture address size, in bits, as
1682 determined by the object file's format. By normalized, we mean
1683 either 32 or 64. For ELF, this information is included in the
1684 header. Use bfd_arch_bits_per_address for number of bits in
1685 the architecture address.
1688 Returns the arch size in bits if known, <<-1>> otherwise.
1692 bfd_get_arch_size (bfd
*abfd
)
1694 if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1695 return get_elf_backend_data (abfd
)->s
->arch_size
;
1697 return bfd_arch_bits_per_address (abfd
) > 32 ? 64 : 32;
1702 bfd_get_sign_extend_vma
1705 int bfd_get_sign_extend_vma (bfd *abfd);
1708 Indicates if the target architecture "naturally" sign extends
1709 an address. Some architectures implicitly sign extend address
1710 values when they are converted to types larger than the size
1711 of an address. For instance, bfd_get_start_address() will
1712 return an address sign extended to fill a bfd_vma when this is
1716 Returns <<1>> if the target architecture is known to sign
1717 extend addresses, <<0>> if the target architecture is known to
1718 not sign extend addresses, and <<-1>> otherwise.
1722 bfd_get_sign_extend_vma (bfd
*abfd
)
1726 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
1727 return get_elf_backend_data (abfd
)->sign_extend_vma
;
1729 name
= bfd_get_target (abfd
);
1731 /* Return a proper value for DJGPP & PE COFF.
1732 This function is required for DWARF2 support, but there is
1733 no place to store this information in the COFF back end.
1734 Should enough other COFF targets add support for DWARF2,
1735 a place will have to be found. Until then, this hack will do. */
1736 if (startswith (name
, "coff-go32")
1737 || strcmp (name
, "pe-i386") == 0
1738 || strcmp (name
, "pei-i386") == 0
1739 || strcmp (name
, "pe-x86-64") == 0
1740 || strcmp (name
, "pei-x86-64") == 0
1741 || strcmp (name
, "pe-arm-wince-little") == 0
1742 || strcmp (name
, "pei-arm-wince-little") == 0
1743 || strcmp (name
, "aixcoff-rs6000") == 0
1744 || strcmp (name
, "aix5coff64-rs6000") == 0)
1747 if (startswith (name
, "mach-o"))
1750 bfd_set_error (bfd_error_wrong_format
);
1756 bfd_set_start_address
1759 bool bfd_set_start_address (bfd *abfd, bfd_vma vma);
1762 Make @var{vma} the entry point of output BFD @var{abfd}.
1765 Returns <<TRUE>> on success, <<FALSE>> otherwise.
1769 bfd_set_start_address (bfd
*abfd
, bfd_vma vma
)
1771 abfd
->start_address
= vma
;
1780 unsigned int bfd_get_gp_size (bfd *abfd);
1783 Return the maximum size of objects to be optimized using the GP
1784 register under MIPS ECOFF. This is typically set by the <<-G>>
1785 argument to the compiler, assembler or linker.
1789 bfd_get_gp_size (bfd
*abfd
)
1791 if (abfd
->format
== bfd_object
)
1793 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1794 return ecoff_data (abfd
)->gp_size
;
1795 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1796 return elf_gp_size (abfd
);
1806 void bfd_set_gp_size (bfd *abfd, unsigned int i);
1809 Set the maximum size of objects to be optimized using the GP
1810 register under ECOFF or MIPS ELF. This is typically set by
1811 the <<-G>> argument to the compiler, assembler or linker.
1815 bfd_set_gp_size (bfd
*abfd
, unsigned int i
)
1817 /* Don't try to set GP size on an archive or core file! */
1818 if (abfd
->format
!= bfd_object
)
1821 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1822 ecoff_data (abfd
)->gp_size
= i
;
1823 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1824 elf_gp_size (abfd
) = i
;
1827 /* Get the GP value. This is an internal function used by some of the
1828 relocation special_function routines on targets which support a GP
1832 _bfd_get_gp_value (bfd
*abfd
)
1836 if (abfd
->format
!= bfd_object
)
1839 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1840 return ecoff_data (abfd
)->gp
;
1841 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1842 return elf_gp (abfd
);
1847 /* Set the GP value. */
1850 _bfd_set_gp_value (bfd
*abfd
, bfd_vma v
)
1854 if (abfd
->format
!= bfd_object
)
1857 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1858 ecoff_data (abfd
)->gp
= v
;
1859 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1868 bfd_vma bfd_scan_vma (const char *string, const char **end, int base);
1871 Convert, like <<strtoul>>, a numerical expression
1872 @var{string} into a <<bfd_vma>> integer, and return that integer.
1873 (Though without as many bells and whistles as <<strtoul>>.)
1874 The expression is assumed to be unsigned (i.e., positive).
1875 If given a @var{base}, it is used as the base for conversion.
1876 A base of 0 causes the function to interpret the string
1877 in hex if a leading "0x" or "0X" is found, otherwise
1878 in octal if a leading zero is found, otherwise in decimal.
1880 If the value would overflow, the maximum <<bfd_vma>> value is
1885 bfd_scan_vma (const char *string
, const char **end
, int base
)
1889 unsigned int cutlim
;
1892 /* Let the host do it if possible. */
1893 if (sizeof (bfd_vma
) <= sizeof (unsigned long))
1894 return strtoul (string
, (char **) end
, base
);
1896 if (sizeof (bfd_vma
) <= sizeof (unsigned long long))
1897 return strtoull (string
, (char **) end
, base
);
1901 if (string
[0] == '0')
1903 if ((string
[1] == 'x') || (string
[1] == 'X'))
1910 if ((base
< 2) || (base
> 36))
1915 && (string
[1] == 'x' || string
[1] == 'X')
1916 && ISXDIGIT (string
[2]))
1921 cutoff
= (~ (bfd_vma
) 0) / (bfd_vma
) base
;
1922 cutlim
= (~ (bfd_vma
) 0) % (bfd_vma
) base
;
1930 if (ISDIGIT (digit
))
1931 digit
= digit
- '0';
1932 else if (ISALPHA (digit
))
1933 digit
= TOUPPER (digit
) - 'A' + 10;
1936 if (digit
>= (unsigned int) base
)
1938 if (value
> cutoff
|| (value
== cutoff
&& digit
> cutlim
))
1940 value
= value
* base
+ digit
;
1945 value
= ~ (bfd_vma
) 0;
1955 bfd_copy_private_header_data
1958 bool bfd_copy_private_header_data (bfd *ibfd, bfd *obfd);
1961 Copy private BFD header information from the BFD @var{ibfd} to the
1962 the BFD @var{obfd}. This copies information that may require
1963 sections to exist, but does not require symbol tables. Return
1964 <<true>> on success, <<false>> on error.
1965 Possible error returns are:
1967 o <<bfd_error_no_memory>> -
1968 Not enough memory exists to create private data for @var{obfd}.
1970 .#define bfd_copy_private_header_data(ibfd, obfd) \
1971 . BFD_SEND (obfd, _bfd_copy_private_header_data, \
1978 bfd_copy_private_bfd_data
1981 bool bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd);
1984 Copy private BFD information from the BFD @var{ibfd} to the
1985 the BFD @var{obfd}. Return <<TRUE>> on success, <<FALSE>> on error.
1986 Possible error returns are:
1988 o <<bfd_error_no_memory>> -
1989 Not enough memory exists to create private data for @var{obfd}.
1991 .#define bfd_copy_private_bfd_data(ibfd, obfd) \
1992 . BFD_SEND (obfd, _bfd_copy_private_bfd_data, \
1999 bfd_set_private_flags
2002 bool bfd_set_private_flags (bfd *abfd, flagword flags);
2005 Set private BFD flag information in the BFD @var{abfd}.
2006 Return <<TRUE>> on success, <<FALSE>> on error. Possible error
2009 o <<bfd_error_no_memory>> -
2010 Not enough memory exists to create private data for @var{obfd}.
2012 .#define bfd_set_private_flags(abfd, flags) \
2013 . BFD_SEND (abfd, _bfd_set_private_flags, (abfd, flags))
2022 The following functions exist but have not yet been documented.
2024 .#define bfd_sizeof_headers(abfd, info) \
2025 . BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, info))
2027 .#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
2028 . BFD_SEND (abfd, _bfd_find_nearest_line, \
2029 . (abfd, syms, sec, off, file, func, line, NULL))
2031 .#define bfd_find_nearest_line_discriminator(abfd, sec, syms, off, file, func, \
2033 . BFD_SEND (abfd, _bfd_find_nearest_line, \
2034 . (abfd, syms, sec, off, file, func, line, disc))
2036 .#define bfd_find_line(abfd, syms, sym, file, line) \
2037 . BFD_SEND (abfd, _bfd_find_line, \
2038 . (abfd, syms, sym, file, line))
2040 .#define bfd_find_inliner_info(abfd, file, func, line) \
2041 . BFD_SEND (abfd, _bfd_find_inliner_info, \
2042 . (abfd, file, func, line))
2044 .#define bfd_debug_info_start(abfd) \
2045 . BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
2047 .#define bfd_debug_info_end(abfd) \
2048 . BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
2050 .#define bfd_debug_info_accumulate(abfd, section) \
2051 . BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
2053 .#define bfd_stat_arch_elt(abfd, stat) \
2054 . BFD_SEND (abfd->my_archive ? abfd->my_archive : abfd, \
2055 . _bfd_stat_arch_elt, (abfd, stat))
2057 .#define bfd_update_armap_timestamp(abfd) \
2058 . BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))
2060 .#define bfd_set_arch_mach(abfd, arch, mach)\
2061 . BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
2063 .#define bfd_relax_section(abfd, section, link_info, again) \
2064 . BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
2066 .#define bfd_gc_sections(abfd, link_info) \
2067 . BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info))
2069 .#define bfd_lookup_section_flags(link_info, flag_info, section) \
2070 . BFD_SEND (abfd, _bfd_lookup_section_flags, (link_info, flag_info, section))
2072 .#define bfd_merge_sections(abfd, link_info) \
2073 . BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info))
2075 .#define bfd_is_group_section(abfd, sec) \
2076 . BFD_SEND (abfd, _bfd_is_group_section, (abfd, sec))
2078 .#define bfd_group_name(abfd, sec) \
2079 . BFD_SEND (abfd, _bfd_group_name, (abfd, sec))
2081 .#define bfd_discard_group(abfd, sec) \
2082 . BFD_SEND (abfd, _bfd_discard_group, (abfd, sec))
2084 .#define bfd_link_hash_table_create(abfd) \
2085 . BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
2087 .#define bfd_link_add_symbols(abfd, info) \
2088 . BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
2090 .#define bfd_link_just_syms(abfd, sec, info) \
2091 . BFD_SEND (abfd, _bfd_link_just_syms, (sec, info))
2093 .#define bfd_final_link(abfd, info) \
2094 . BFD_SEND (abfd, _bfd_final_link, (abfd, info))
2096 .#define bfd_free_cached_info(abfd) \
2097 . BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
2099 .#define bfd_get_dynamic_symtab_upper_bound(abfd) \
2100 . BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
2102 .#define bfd_print_private_bfd_data(abfd, file)\
2103 . BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file))
2105 .#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
2106 . BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
2108 .#define bfd_get_synthetic_symtab(abfd, count, syms, dyncount, dynsyms, ret) \
2109 . BFD_SEND (abfd, _bfd_get_synthetic_symtab, (abfd, count, syms, \
2110 . dyncount, dynsyms, ret))
2112 .#define bfd_get_dynamic_reloc_upper_bound(abfd) \
2113 . BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
2115 .#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
2116 . BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
2118 .extern bfd_byte *bfd_get_relocated_section_contents
2119 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *,
2120 . bool, asymbol **);
2126 bfd_get_relocated_section_contents (bfd
*abfd
,
2127 struct bfd_link_info
*link_info
,
2128 struct bfd_link_order
*link_order
,
2134 bfd_byte
*(*fn
) (bfd
*, struct bfd_link_info
*, struct bfd_link_order
*,
2135 bfd_byte
*, bool, asymbol
**);
2137 if (link_order
->type
== bfd_indirect_link_order
)
2139 abfd2
= link_order
->u
.indirect
.section
->owner
;
2146 fn
= abfd2
->xvec
->_bfd_get_relocated_section_contents
;
2148 return (*fn
) (abfd
, link_info
, link_order
, data
, relocatable
, symbols
);
2151 /* Record information about an ELF program header. */
2154 bfd_record_phdr (bfd
*abfd
,
2159 bfd_vma at
, /* Bytes. */
2160 bool includes_filehdr
,
2161 bool includes_phdrs
,
2165 struct elf_segment_map
*m
, **pm
;
2167 unsigned int opb
= bfd_octets_per_byte (abfd
, NULL
);
2169 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
2172 amt
= sizeof (struct elf_segment_map
);
2173 amt
+= ((bfd_size_type
) count
- 1) * sizeof (asection
*);
2174 m
= (struct elf_segment_map
*) bfd_zalloc (abfd
, amt
);
2180 m
->p_paddr
= at
* opb
;
2181 m
->p_flags_valid
= flags_valid
;
2182 m
->p_paddr_valid
= at_valid
;
2183 m
->includes_filehdr
= includes_filehdr
;
2184 m
->includes_phdrs
= includes_phdrs
;
2187 memcpy (m
->sections
, secs
, count
* sizeof (asection
*));
2189 for (pm
= &elf_seg_map (abfd
); *pm
!= NULL
; pm
= &(*pm
)->next
)
2197 /* Return true iff this target is 32-bit. */
2202 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
2204 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
2205 return bed
->s
->elfclass
== ELFCLASS32
;
2208 /* For non-ELF targets, use architecture information. */
2209 return bfd_arch_bits_per_address (abfd
) <= 32;
2213 /* bfd_sprintf_vma and bfd_fprintf_vma display an address in the
2214 target's address size. */
2217 bfd_sprintf_vma (bfd
*abfd ATTRIBUTE_UNUSED
, char *buf
, bfd_vma value
)
2222 sprintf (buf
, "%08lx", (unsigned long) value
& 0xffffffff);
2226 sprintf_vma (buf
, value
);
2230 bfd_fprintf_vma (bfd
*abfd ATTRIBUTE_UNUSED
, void *stream
, bfd_vma value
)
2235 fprintf ((FILE *) stream
, "%08lx", (unsigned long) value
& 0xffffffff);
2239 fprintf_vma ((FILE *) stream
, value
);
2247 bool bfd_alt_mach_code (bfd *abfd, int alternative);
2251 When more than one machine code number is available for the
2252 same machine type, this function can be used to switch between
2253 the preferred one (alternative == 0) and any others. Currently,
2254 only ELF supports this feature, with up to two alternate
2259 bfd_alt_mach_code (bfd
*abfd
, int alternative
)
2261 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
2265 switch (alternative
)
2268 code
= get_elf_backend_data (abfd
)->elf_machine_code
;
2272 code
= get_elf_backend_data (abfd
)->elf_machine_alt1
;
2278 code
= get_elf_backend_data (abfd
)->elf_machine_alt2
;
2287 elf_elfheader (abfd
)->e_machine
= code
;
2297 bfd_emul_get_maxpagesize
2300 bfd_vma bfd_emul_get_maxpagesize (const char *);
2303 Returns the maximum page size, in bytes, as determined by
2307 Returns the maximum page size in bytes for ELF, 0 otherwise.
2311 bfd_emul_get_maxpagesize (const char *emul
)
2313 const bfd_target
*target
;
2315 target
= bfd_find_target (emul
, NULL
);
2317 && target
->flavour
== bfd_target_elf_flavour
)
2318 return xvec_get_elf_backend_data (target
)->maxpagesize
;
2325 bfd_emul_get_commonpagesize
2328 bfd_vma bfd_emul_get_commonpagesize (const char *, bool);
2331 Returns the common page size, in bytes, as determined by
2335 Returns the common page size in bytes for ELF, 0 otherwise.
2339 bfd_emul_get_commonpagesize (const char *emul
, bool relro
)
2341 const bfd_target
*target
;
2343 target
= bfd_find_target (emul
, NULL
);
2345 && target
->flavour
== bfd_target_elf_flavour
)
2347 const struct elf_backend_data
*bed
;
2349 bed
= xvec_get_elf_backend_data (target
);
2351 return bed
->relropagesize
;
2353 return bed
->commonpagesize
;
2363 char *bfd_demangle (bfd *, const char *, int);
2366 Wrapper around cplus_demangle. Strips leading underscores and
2367 other such chars that would otherwise confuse the demangler.
2368 If passed a g++ v3 ABI mangled name, returns a buffer allocated
2369 with malloc holding the demangled name. Returns NULL otherwise
2370 and on memory alloc failure.
2374 bfd_demangle (bfd
*abfd
, const char *name
, int options
)
2377 const char *pre
, *suf
;
2381 skip_lead
= (abfd
!= NULL
2383 && bfd_get_symbol_leading_char (abfd
) == *name
);
2387 /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF
2388 or the MS PE format. These formats have a number of leading '.'s
2389 on at least some symbols, so we remove all dots to avoid
2390 confusing the demangler. */
2392 while (*name
== '.' || *name
== '$')
2394 pre_len
= name
- pre
;
2396 /* Strip off @plt and suchlike too. */
2398 suf
= strchr (name
, '@');
2401 alloc
= (char *) bfd_malloc (suf
- name
+ 1);
2404 memcpy (alloc
, name
, suf
- name
);
2405 alloc
[suf
- name
] = '\0';
2409 res
= cplus_demangle (name
, options
);
2417 size_t len
= strlen (pre
) + 1;
2418 alloc
= (char *) bfd_malloc (len
);
2421 memcpy (alloc
, pre
, len
);
2427 /* Put back any prefix or suffix. */
2428 if (pre_len
!= 0 || suf
!= NULL
)
2437 suf_len
= strlen (suf
) + 1;
2438 final
= (char *) bfd_malloc (pre_len
+ len
+ suf_len
);
2441 memcpy (final
, pre
, pre_len
);
2442 memcpy (final
+ pre_len
, res
, len
);
2443 memcpy (final
+ pre_len
+ len
, suf
, suf_len
);
2454 bfd_update_compression_header
2457 void bfd_update_compression_header
2458 (bfd *abfd, bfd_byte *contents, asection *sec);
2461 Set the compression header at CONTENTS of SEC in ABFD and update
2462 elf_section_flags for compression.
2466 bfd_update_compression_header (bfd
*abfd
, bfd_byte
*contents
,
2469 if ((abfd
->flags
& BFD_COMPRESS
) == 0)
2472 switch (bfd_get_flavour (abfd
))
2474 case bfd_target_elf_flavour
:
2475 if ((abfd
->flags
& BFD_COMPRESS_GABI
) != 0)
2477 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
2478 struct bfd_elf_section_data
* esd
= elf_section_data (sec
);
2480 /* Set the SHF_COMPRESSED bit. */
2481 elf_section_flags (sec
) |= SHF_COMPRESSED
;
2483 if (bed
->s
->elfclass
== ELFCLASS32
)
2485 Elf32_External_Chdr
*echdr
= (Elf32_External_Chdr
*) contents
;
2486 bfd_put_32 (abfd
, ELFCOMPRESS_ZLIB
, &echdr
->ch_type
);
2487 bfd_put_32 (abfd
, sec
->size
, &echdr
->ch_size
);
2488 bfd_put_32 (abfd
, 1 << sec
->alignment_power
,
2489 &echdr
->ch_addralign
);
2490 /* bfd_log2 (alignof (Elf32_Chdr)) */
2491 bfd_set_section_alignment (sec
, 2);
2492 esd
->this_hdr
.sh_addralign
= 4;
2496 Elf64_External_Chdr
*echdr
= (Elf64_External_Chdr
*) contents
;
2497 bfd_put_32 (abfd
, ELFCOMPRESS_ZLIB
, &echdr
->ch_type
);
2498 bfd_put_32 (abfd
, 0, &echdr
->ch_reserved
);
2499 bfd_put_64 (abfd
, sec
->size
, &echdr
->ch_size
);
2500 bfd_put_64 (abfd
, 1 << sec
->alignment_power
,
2501 &echdr
->ch_addralign
);
2502 /* bfd_log2 (alignof (Elf64_Chdr)) */
2503 bfd_set_section_alignment (sec
, 3);
2504 esd
->this_hdr
.sh_addralign
= 8;
2509 /* Clear the SHF_COMPRESSED bit. */
2510 elf_section_flags (sec
) &= ~SHF_COMPRESSED
;
2514 /* Write the zlib header. It should be "ZLIB" followed by
2515 the uncompressed section size, 8 bytes in big-endian
2517 memcpy (contents
, "ZLIB", 4);
2518 bfd_putb64 (sec
->size
, contents
+ 4);
2519 /* No way to keep the original alignment, just use 1 always. */
2520 bfd_set_section_alignment (sec
, 0);
2527 bfd_check_compression_header
2530 bool bfd_check_compression_header
2531 (bfd *abfd, bfd_byte *contents, asection *sec,
2532 bfd_size_type *uncompressed_size,
2533 unsigned int *uncompressed_alignment_power);
2536 Check the compression header at CONTENTS of SEC in ABFD and
2537 store the uncompressed size in UNCOMPRESSED_SIZE and the
2538 uncompressed data alignment in UNCOMPRESSED_ALIGNMENT_POWER
2539 if the compression header is valid.
2542 Return TRUE if the compression header is valid.
2546 bfd_check_compression_header (bfd
*abfd
, bfd_byte
*contents
,
2548 bfd_size_type
*uncompressed_size
,
2549 unsigned int *uncompressed_alignment_power
)
2551 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
2552 && (elf_section_flags (sec
) & SHF_COMPRESSED
) != 0)
2554 Elf_Internal_Chdr chdr
;
2555 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
2556 if (bed
->s
->elfclass
== ELFCLASS32
)
2558 Elf32_External_Chdr
*echdr
= (Elf32_External_Chdr
*) contents
;
2559 chdr
.ch_type
= bfd_get_32 (abfd
, &echdr
->ch_type
);
2560 chdr
.ch_size
= bfd_get_32 (abfd
, &echdr
->ch_size
);
2561 chdr
.ch_addralign
= bfd_get_32 (abfd
, &echdr
->ch_addralign
);
2565 Elf64_External_Chdr
*echdr
= (Elf64_External_Chdr
*) contents
;
2566 chdr
.ch_type
= bfd_get_32 (abfd
, &echdr
->ch_type
);
2567 chdr
.ch_size
= bfd_get_64 (abfd
, &echdr
->ch_size
);
2568 chdr
.ch_addralign
= bfd_get_64 (abfd
, &echdr
->ch_addralign
);
2570 if (chdr
.ch_type
== ELFCOMPRESS_ZLIB
2571 && chdr
.ch_addralign
== (chdr
.ch_addralign
& -chdr
.ch_addralign
))
2573 *uncompressed_size
= chdr
.ch_size
;
2574 *uncompressed_alignment_power
= bfd_log2 (chdr
.ch_addralign
);
2584 bfd_get_compression_header_size
2587 int bfd_get_compression_header_size (bfd *abfd, asection *sec);
2590 Return the size of the compression header of SEC in ABFD.
2593 Return the size of the compression header in bytes.
2597 bfd_get_compression_header_size (bfd
*abfd
, asection
*sec
)
2599 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
2603 if (!(abfd
->flags
& BFD_COMPRESS_GABI
))
2606 else if (!(elf_section_flags (sec
) & SHF_COMPRESSED
))
2609 if (get_elf_backend_data (abfd
)->s
->elfclass
== ELFCLASS32
)
2610 return sizeof (Elf32_External_Chdr
);
2612 return sizeof (Elf64_External_Chdr
);
2620 bfd_convert_section_size
2623 bfd_size_type bfd_convert_section_size
2624 (bfd *ibfd, asection *isec, bfd *obfd, bfd_size_type size);
2627 Convert the size @var{size} of the section @var{isec} in input
2628 BFD @var{ibfd} to the section size in output BFD @var{obfd}.
2632 bfd_convert_section_size (bfd
*ibfd
, sec_ptr isec
, bfd
*obfd
,
2635 bfd_size_type hdr_size
;
2637 /* Do nothing if either input or output aren't ELF. */
2638 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2639 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
2642 /* Do nothing if ELF classes of input and output are the same. */
2643 if (get_elf_backend_data (ibfd
)->s
->elfclass
2644 == get_elf_backend_data (obfd
)->s
->elfclass
)
2647 /* Convert GNU property size. */
2648 if (startswith (isec
->name
, NOTE_GNU_PROPERTY_SECTION_NAME
))
2649 return _bfd_elf_convert_gnu_property_size (ibfd
, obfd
);
2651 /* Do nothing if input file will be decompressed. */
2652 if ((ibfd
->flags
& BFD_DECOMPRESS
))
2655 /* Do nothing if the input section isn't a SHF_COMPRESSED section. */
2656 hdr_size
= bfd_get_compression_header_size (ibfd
, isec
);
2660 /* Adjust the size of the output SHF_COMPRESSED section. */
2661 if (hdr_size
== sizeof (Elf32_External_Chdr
))
2662 return (size
- sizeof (Elf32_External_Chdr
)
2663 + sizeof (Elf64_External_Chdr
));
2665 return (size
- sizeof (Elf64_External_Chdr
)
2666 + sizeof (Elf32_External_Chdr
));
2671 bfd_convert_section_contents
2674 bool bfd_convert_section_contents
2675 (bfd *ibfd, asection *isec, bfd *obfd,
2676 bfd_byte **ptr, bfd_size_type *ptr_size);
2679 Convert the contents, stored in @var{*ptr}, of the section
2680 @var{isec} in input BFD @var{ibfd} to output BFD @var{obfd}
2681 if needed. The original buffer pointed to by @var{*ptr} may
2682 be freed and @var{*ptr} is returned with memory malloc'd by this
2683 function, and the new size written to @var{ptr_size}.
2687 bfd_convert_section_contents (bfd
*ibfd
, sec_ptr isec
, bfd
*obfd
,
2688 bfd_byte
**ptr
, bfd_size_type
*ptr_size
)
2691 bfd_size_type ihdr_size
, ohdr_size
, size
;
2692 Elf_Internal_Chdr chdr
;
2695 /* Do nothing if either input or output aren't ELF. */
2696 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2697 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
2700 /* Do nothing if ELF classes of input and output are the same. */
2701 if (get_elf_backend_data (ibfd
)->s
->elfclass
2702 == get_elf_backend_data (obfd
)->s
->elfclass
)
2705 /* Convert GNU properties. */
2706 if (startswith (isec
->name
, NOTE_GNU_PROPERTY_SECTION_NAME
))
2707 return _bfd_elf_convert_gnu_properties (ibfd
, isec
, obfd
, ptr
,
2710 /* Do nothing if input file will be decompressed. */
2711 if ((ibfd
->flags
& BFD_DECOMPRESS
))
2714 /* Do nothing if the input section isn't a SHF_COMPRESSED section. */
2715 ihdr_size
= bfd_get_compression_header_size (ibfd
, isec
);
2719 /* PR 25221. Check for corrupt input sections. */
2720 if (ihdr_size
> bfd_get_section_limit (ibfd
, isec
))
2721 /* FIXME: Issue a warning about a corrupt
2722 compression header size field ? */
2727 /* Convert the contents of the input SHF_COMPRESSED section to
2728 output. Get the input compression header and the size of the
2729 output compression header. */
2730 if (ihdr_size
== sizeof (Elf32_External_Chdr
))
2732 Elf32_External_Chdr
*echdr
= (Elf32_External_Chdr
*) contents
;
2733 chdr
.ch_type
= bfd_get_32 (ibfd
, &echdr
->ch_type
);
2734 chdr
.ch_size
= bfd_get_32 (ibfd
, &echdr
->ch_size
);
2735 chdr
.ch_addralign
= bfd_get_32 (ibfd
, &echdr
->ch_addralign
);
2737 ohdr_size
= sizeof (Elf64_External_Chdr
);
2739 use_memmove
= false;
2741 else if (ihdr_size
!= sizeof (Elf64_External_Chdr
))
2743 /* FIXME: Issue a warning about a corrupt
2744 compression header size field ? */
2749 Elf64_External_Chdr
*echdr
= (Elf64_External_Chdr
*) contents
;
2750 chdr
.ch_type
= bfd_get_32 (ibfd
, &echdr
->ch_type
);
2751 chdr
.ch_size
= bfd_get_64 (ibfd
, &echdr
->ch_size
);
2752 chdr
.ch_addralign
= bfd_get_64 (ibfd
, &echdr
->ch_addralign
);
2754 ohdr_size
= sizeof (Elf32_External_Chdr
);
2758 size
= bfd_section_size (isec
) - ihdr_size
+ ohdr_size
;
2761 contents
= (bfd_byte
*) bfd_malloc (size
);
2762 if (contents
== NULL
)
2766 /* Write out the output compression header. */
2767 if (ohdr_size
== sizeof (Elf32_External_Chdr
))
2769 Elf32_External_Chdr
*echdr
= (Elf32_External_Chdr
*) contents
;
2770 bfd_put_32 (obfd
, ELFCOMPRESS_ZLIB
, &echdr
->ch_type
);
2771 bfd_put_32 (obfd
, chdr
.ch_size
, &echdr
->ch_size
);
2772 bfd_put_32 (obfd
, chdr
.ch_addralign
, &echdr
->ch_addralign
);
2776 Elf64_External_Chdr
*echdr
= (Elf64_External_Chdr
*) contents
;
2777 bfd_put_32 (obfd
, ELFCOMPRESS_ZLIB
, &echdr
->ch_type
);
2778 bfd_put_32 (obfd
, 0, &echdr
->ch_reserved
);
2779 bfd_put_64 (obfd
, chdr
.ch_size
, &echdr
->ch_size
);
2780 bfd_put_64 (obfd
, chdr
.ch_addralign
, &echdr
->ch_addralign
);
2783 /* Copy the compressed contents. */
2785 memmove (contents
+ ohdr_size
, *ptr
+ ihdr_size
, size
- ohdr_size
);
2788 memcpy (contents
+ ohdr_size
, *ptr
+ ihdr_size
, size
- ohdr_size
);
2797 /* Get the linker information. */
2799 struct bfd_link_info
*
2800 _bfd_get_link_info (bfd
*abfd
)
2802 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
2805 return elf_link_info (abfd
);