1 /* Generic BFD library interface and support routines.
2 Copyright (C) 1990-2020 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 . {* Set to dummy BFD created when claimed by a compiler plug-in
250 . bfd *plugin_dummy_bfd;
252 . {* Currently my_archive is tested before adding origin to
253 . anything. I believe that this can become always an add of
254 . origin, with origin set to 0 for non archive files. *}
257 . {* The origin in the archive of the proxy entry. This will
258 . normally be the same as origin, except for thin archives,
259 . when it will contain the current offset of the proxy in the
260 . thin archive rather than the offset of the bfd in its actual
262 . ufile_ptr proxy_origin;
264 . {* A hash table for section names. *}
265 . struct bfd_hash_table section_htab;
267 . {* Pointer to linked list of sections. *}
268 . struct bfd_section *sections;
270 . {* The last section on the section list. *}
271 . struct bfd_section *section_last;
273 . {* The number of sections. *}
274 . unsigned int section_count;
276 . {* A field used by _bfd_generic_link_add_archive_symbols. This will
277 . be used only for archive elements. *}
280 . {* Stuff only useful for object files:
281 . The start address. *}
282 . bfd_vma start_address;
284 . {* Symbol table for output BFD (with symcount entries).
285 . Also used by the linker to cache input BFD symbols. *}
286 . struct bfd_symbol **outsymbols;
288 . {* Used for input and output. *}
289 . unsigned int symcount;
291 . {* Used for slurped dynamic symbol tables. *}
292 . unsigned int dynsymcount;
294 . {* Pointer to structure which contains architecture information. *}
295 . const struct bfd_arch_info *arch_info;
297 . {* Cached length of file for bfd_get_size. 0 until bfd_get_size is
298 . called, 1 if stat returns an error or the file size is too large to
299 . return in ufile_ptr. Both 0 and 1 should be treated as "unknown". *}
302 . {* Stuff only useful for archives. *}
304 . struct bfd *my_archive; {* The containing archive BFD. *}
305 . struct bfd *archive_next; {* The next BFD in the archive. *}
306 . struct bfd *archive_head; {* The first BFD in the archive. *}
307 . struct bfd *nested_archives; {* List of nested archive in a flattened
311 . {* For input BFDs, a chain of BFDs involved in a link. *}
313 . {* For output BFD, the linker hash table. *}
314 . struct bfd_link_hash_table *hash;
317 . {* Used by the back end to hold private data. *}
320 . struct aout_data_struct *aout_data;
321 . struct artdata *aout_ar_data;
322 . struct coff_tdata *coff_obj_data;
323 . struct pe_tdata *pe_obj_data;
324 . struct xcoff_tdata *xcoff_obj_data;
325 . struct ecoff_tdata *ecoff_obj_data;
326 . struct srec_data_struct *srec_data;
327 . struct verilog_data_struct *verilog_data;
328 . struct ihex_data_struct *ihex_data;
329 . struct tekhex_data_struct *tekhex_data;
330 . struct elf_obj_tdata *elf_obj_data;
331 . struct mmo_data_struct *mmo_data;
332 . struct sun_core_struct *sun_core_data;
333 . struct sco5_core_struct *sco5_core_data;
334 . struct trad_core_struct *trad_core_data;
335 . struct som_data_struct *som_data;
336 . struct hpux_core_struct *hpux_core_data;
337 . struct hppabsd_core_struct *hppabsd_core_data;
338 . struct sgi_core_struct *sgi_core_data;
339 . struct lynx_core_struct *lynx_core_data;
340 . struct osf_core_struct *osf_core_data;
341 . struct cisco_core_struct *cisco_core_data;
342 . struct versados_data_struct *versados_data;
343 . struct netbsd_core_struct *netbsd_core_data;
344 . struct mach_o_data_struct *mach_o_data;
345 . struct mach_o_fat_data_struct *mach_o_fat_data;
346 . struct plugin_data_struct *plugin_data;
347 . struct bfd_pef_data_struct *pef_data;
348 . struct bfd_pef_xlib_data_struct *pef_xlib_data;
349 . struct bfd_sym_data_struct *sym_data;
354 . {* Used by the application to hold private data. *}
357 . {* Where all the allocated stuff under this BFD goes. This is a
358 . struct objalloc *, but we use void * to avoid requiring the inclusion
362 . {* For input BFDs, the build ID, if the object has one. *}
363 . const struct bfd_build_id *build_id;
366 .static inline const char *
367 .bfd_get_filename (const bfd *abfd)
369 . return abfd->filename;
372 .static inline bfd_boolean
373 .bfd_get_cacheable (const bfd *abfd)
375 . return abfd->cacheable;
378 .static inline enum bfd_format
379 .bfd_get_format (const bfd *abfd)
381 . return abfd->format;
384 .static inline flagword
385 .bfd_get_file_flags (const bfd *abfd)
387 . return abfd->flags;
390 .static inline bfd_vma
391 .bfd_get_start_address (const bfd *abfd)
393 . return abfd->start_address;
396 .static inline unsigned int
397 .bfd_get_symcount (const bfd *abfd)
399 . return abfd->symcount;
402 .static inline unsigned int
403 .bfd_get_dynamic_symcount (const bfd *abfd)
405 . return abfd->dynsymcount;
408 .static inline struct bfd_symbol **
409 .bfd_get_outsymbols (const bfd *abfd)
411 . return abfd->outsymbols;
414 .static inline unsigned int
415 .bfd_count_sections (const bfd *abfd)
417 . return abfd->section_count;
420 .static inline bfd_boolean
421 .bfd_has_map (const bfd *abfd)
423 . return abfd->has_armap;
426 .static inline bfd_boolean
427 .bfd_is_thin_archive (const bfd *abfd)
429 . return abfd->is_thin_archive;
432 .static inline void *
433 .bfd_usrdata (const bfd *abfd)
435 . return abfd->usrdata;
438 .{* See note beside bfd_set_section_userdata. *}
439 .static inline bfd_boolean
440 .bfd_set_cacheable (bfd * abfd, bfd_boolean val)
442 . abfd->cacheable = val;
447 .bfd_set_thin_archive (bfd *abfd, bfd_boolean val)
449 . abfd->is_thin_archive = val;
453 .bfd_set_usrdata (bfd *abfd, void *val)
455 . abfd->usrdata = val;
458 .static inline asection *
459 .bfd_asymbol_section (const asymbol *sy)
461 . return sy->section;
464 .static inline bfd_vma
465 .bfd_asymbol_value (const asymbol *sy)
467 . return sy->section->vma + sy->value;
470 .static inline const char *
471 .bfd_asymbol_name (const asymbol *sy)
476 .static inline struct bfd *
477 .bfd_asymbol_bfd (const asymbol *sy)
479 . return sy->the_bfd;
483 .bfd_set_asymbol_name (asymbol *sy, const char *name)
488 .static inline bfd_size_type
489 .bfd_get_section_limit_octets (const bfd *abfd, const asection *sec)
491 . if (abfd->direction != write_direction && sec->rawsize != 0)
492 . return sec->rawsize;
496 .{* Find the address one past the end of SEC. *}
497 .static inline bfd_size_type
498 .bfd_get_section_limit (const bfd *abfd, const asection *sec)
500 . return (bfd_get_section_limit_octets (abfd, sec)
501 . / bfd_octets_per_byte (abfd, sec));
504 .{* Functions to handle insertion and deletion of a bfd's sections. These
505 . only handle the list pointers, ie. do not adjust section_count,
506 . target_index etc. *}
508 .bfd_section_list_remove (bfd *abfd, asection *s)
510 . asection *next = s->next;
511 . asection *prev = s->prev;
515 . abfd->sections = next;
519 . abfd->section_last = prev;
523 .bfd_section_list_append (bfd *abfd, asection *s)
526 . if (abfd->section_last)
528 . s->prev = abfd->section_last;
529 . abfd->section_last->next = s;
534 . abfd->sections = s;
536 . abfd->section_last = s;
540 .bfd_section_list_prepend (bfd *abfd, asection *s)
543 . if (abfd->sections)
545 . s->next = abfd->sections;
546 . abfd->sections->prev = s;
551 . abfd->section_last = s;
553 . abfd->sections = s;
557 .bfd_section_list_insert_after (bfd *abfd, asection *a, asection *s)
559 . asection *next = a->next;
566 . abfd->section_last = s;
570 .bfd_section_list_insert_before (bfd *abfd, asection *b, asection *s)
572 . asection *prev = b->prev;
579 . abfd->sections = s;
582 .static inline bfd_boolean
583 .bfd_section_removed_from_list (const bfd *abfd, const asection *s)
585 . return s->next ? s->next->prev != s : abfd->section_last != s;
594 #include "libiberty.h"
595 #include "demangle.h"
596 #include "safe-ctype.h"
599 #include "coff/internal.h"
600 #include "coff/sym.h"
602 #include "libecoff.h"
607 #define EXIT_FAILURE 1
611 /* provide storage for subsystem, stack and heap data which may have been
612 passed in on the command line. Ld puts this data into a bfd_link_info
613 struct which ultimately gets passed in to the bfd. When it arrives, copy
614 it to the following struct so that the data will be available in coffcode.h
615 where it is needed. The typedef's used are defined in bfd.h */
619 Error reporting, Miscellaneous, typedef bfd, BFD front end
624 Most BFD functions return nonzero on success (check their
625 individual documentation for precise semantics). On an error,
626 they call <<bfd_set_error>> to set an error condition that callers
627 can check by calling <<bfd_get_error>>.
628 If that returns <<bfd_error_system_call>>, then check
631 The easiest way to report a BFD error to the user is to
635 Type <<bfd_error_type>>
637 The values returned by <<bfd_get_error>> are defined by the
638 enumerated type <<bfd_error_type>>.
642 .typedef enum bfd_error
644 . bfd_error_no_error = 0,
645 . bfd_error_system_call,
646 . bfd_error_invalid_target,
647 . bfd_error_wrong_format,
648 . bfd_error_wrong_object_format,
649 . bfd_error_invalid_operation,
650 . bfd_error_no_memory,
651 . bfd_error_no_symbols,
652 . bfd_error_no_armap,
653 . bfd_error_no_more_archived_files,
654 . bfd_error_malformed_archive,
655 . bfd_error_missing_dso,
656 . bfd_error_file_not_recognized,
657 . bfd_error_file_ambiguously_recognized,
658 . bfd_error_no_contents,
659 . bfd_error_nonrepresentable_section,
660 . bfd_error_no_debug_section,
661 . bfd_error_bad_value,
662 . bfd_error_file_truncated,
663 . bfd_error_file_too_big,
665 . bfd_error_on_input,
666 . bfd_error_invalid_error_code
672 static bfd_error_type bfd_error
= bfd_error_no_error
;
673 static bfd
*input_bfd
= NULL
;
674 static bfd_error_type input_error
= bfd_error_no_error
;
676 const char *const bfd_errmsgs
[] =
679 N_("system call error"),
680 N_("invalid bfd target"),
681 N_("file in wrong format"),
682 N_("archive object file in wrong format"),
683 N_("invalid operation"),
684 N_("memory exhausted"),
686 N_("archive has no index; run ranlib to add one"),
687 N_("no more archived files"),
688 N_("malformed archive"),
689 N_("DSO missing from command line"),
690 N_("file format not recognized"),
691 N_("file format is ambiguous"),
692 N_("section has no contents"),
693 N_("nonrepresentable section on output"),
694 N_("symbol needs debug section which does not exist"),
696 N_("file truncated"),
698 N_("sorry, cannot handle this file"),
699 N_("error reading %s: %s"),
700 N_("#<invalid error code>")
708 bfd_error_type bfd_get_error (void);
711 Return the current BFD error condition.
725 void bfd_set_error (bfd_error_type error_tag);
728 Set the BFD error condition to be @var{error_tag}.
730 @var{error_tag} must not be bfd_error_on_input. Use
731 bfd_set_input_error for input errors instead.
735 bfd_set_error (bfd_error_type error_tag
)
737 bfd_error
= error_tag
;
738 if (bfd_error
>= bfd_error_on_input
)
747 void bfd_set_input_error (bfd *input, bfd_error_type error_tag);
751 Set the BFD error condition to be bfd_error_on_input.
752 @var{input} is the input bfd where the error occurred, and
753 @var{error_tag} the bfd_error_type error.
757 bfd_set_input_error (bfd
*input
, bfd_error_type error_tag
)
759 /* This is an error that occurred during bfd_close when writing an
760 archive, but on one of the input files. */
761 bfd_error
= bfd_error_on_input
;
763 input_error
= error_tag
;
764 if (input_error
>= bfd_error_on_input
)
773 const char *bfd_errmsg (bfd_error_type error_tag);
776 Return a string describing the error @var{error_tag}, or
777 the system error if @var{error_tag} is <<bfd_error_system_call>>.
781 bfd_errmsg (bfd_error_type error_tag
)
786 if (error_tag
== bfd_error_on_input
)
789 const char *msg
= bfd_errmsg (input_error
);
791 if (asprintf (&buf
, _(bfd_errmsgs
[error_tag
]), input_bfd
->filename
, msg
)
795 /* Ick, what to do on out of memory? */
799 if (error_tag
== bfd_error_system_call
)
800 return xstrerror (errno
);
802 if (error_tag
> bfd_error_invalid_error_code
)
803 error_tag
= bfd_error_invalid_error_code
; /* sanity check */
805 return _(bfd_errmsgs
[error_tag
]);
813 void bfd_perror (const char *message);
816 Print to the standard error stream a string describing the
817 last BFD error that occurred, or the last system error if
818 the last BFD error was a system call failure. If @var{message}
819 is non-NULL and non-empty, the error string printed is preceded
820 by @var{message}, a colon, and a space. It is followed by a newline.
824 bfd_perror (const char *message
)
827 if (message
== NULL
|| *message
== '\0')
828 fprintf (stderr
, "%s\n", bfd_errmsg (bfd_get_error ()));
830 fprintf (stderr
, "%s: %s\n", message
, bfd_errmsg (bfd_get_error ()));
838 Some BFD functions want to print messages describing the
839 problem. They call a BFD error handler function. This
840 function may be overridden by the program.
842 The BFD error handler acts like vprintf.
846 .typedef void (*bfd_error_handler_type) (const char *, va_list);
850 /* The program name used when printing BFD error messages. */
852 static const char *_bfd_error_program_name
;
854 /* Support for positional parameters. */
856 union _bfd_doprnt_args
876 /* This macro and _bfd_doprnt taken from libiberty _doprnt.c, tidied a
877 little and extended to handle '%pA', '%pB' and positional parameters. */
879 #define PRINT_TYPE(TYPE, FIELD) \
882 TYPE value = (TYPE) args[arg_no].FIELD; \
883 result = fprintf (stream, specifier, value); \
887 _bfd_doprnt (FILE *stream
, const char *format
, union _bfd_doprnt_args
*args
)
889 const char *ptr
= format
;
891 int total_printed
= 0;
892 unsigned int arg_count
= 0;
900 /* While we have regular characters, print them. */
901 char *end
= strchr (ptr
, '%');
903 result
= fprintf (stream
, "%.*s", (int) (end
- ptr
), ptr
);
905 result
= fprintf (stream
, "%s", ptr
);
908 else if (ptr
[1] == '%')
916 /* We have a format specifier! */
917 char *sptr
= specifier
;
918 int wide_width
= 0, short_width
= 0;
921 /* Copy the % and move forward. */
924 /* Check for a positional parameter. */
926 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
932 /* Move past flags. */
933 while (strchr ("-+ #0'I", *ptr
))
939 unsigned int arg_index
;
942 arg_index
= arg_count
;
943 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
945 arg_index
= *ptr
- '1';
948 value
= abs (args
[arg_index
].i
);
950 sptr
+= sprintf (sptr
, "%d", value
);
953 /* Handle explicit numeric value. */
954 while (ISDIGIT (*ptr
))
960 /* Copy and go past the period. */
965 unsigned int arg_index
;
968 arg_index
= arg_count
;
969 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
971 arg_index
= *ptr
- '1';
974 value
= abs (args
[arg_index
].i
);
976 sptr
+= sprintf (sptr
, "%d", value
);
979 /* Handle explicit numeric value. */
980 while (ISDIGIT (*ptr
))
983 while (strchr ("hlL", *ptr
))
1002 /* Copy the type specifier, and NULL terminate. */
1005 if ((int) arg_no
< 0)
1018 /* Short values are promoted to int, so just copy it
1019 as an int and trust the C library printf to cast it
1020 to the right width. */
1022 PRINT_TYPE (int, i
);
1028 PRINT_TYPE (int, i
);
1031 PRINT_TYPE (long, l
);
1035 #if defined (__MSVCRT__)
1042 #if defined (__GNUC__) || defined (HAVE_LONG_LONG)
1043 PRINT_TYPE (long long, ll
);
1045 /* Fake it and hope for the best. */
1046 PRINT_TYPE (long, l
);
1059 if (wide_width
== 0)
1060 PRINT_TYPE (double, d
);
1063 #if defined (__GNUC__) || defined (HAVE_LONG_DOUBLE)
1064 PRINT_TYPE (long double, ld
);
1066 /* Fake it and hope for the best. */
1067 PRINT_TYPE (double, d
);
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 abfd
->my_archive
->filename
,
1121 result
= fprintf (stream
, "%s", abfd
->filename
);
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 #if defined (__GNUC__) || defined (HAVE_LONG_LONG)
1272 arg_type
= LongLong
;
1287 if (wide_width
== 0)
1291 #if defined (__GNUC__) || defined (HAVE_LONG_DOUBLE)
1292 arg_type
= LongDouble
;
1303 if (*ptr
== 'A' || *ptr
== 'B')
1313 args
[arg_no
].type
= arg_type
;
1322 error_handler_internal (const char *fmt
, va_list ap
)
1324 unsigned int i
, arg_count
;
1325 union _bfd_doprnt_args args
[9];
1327 for (i
= 0; i
< sizeof (args
) / sizeof (args
[0]); i
++)
1330 arg_count
= _bfd_doprnt_scan (fmt
, args
);
1331 for (i
= 0; i
< arg_count
; i
++)
1333 switch (args
[i
].type
)
1336 args
[i
].i
= va_arg (ap
, int);
1339 args
[i
].l
= va_arg (ap
, long);
1342 args
[i
].ll
= va_arg (ap
, long long);
1345 args
[i
].d
= va_arg (ap
, double);
1348 args
[i
].ld
= va_arg (ap
, long double);
1351 args
[i
].p
= va_arg (ap
, void *);
1358 /* PR 4992: Don't interrupt output being sent to stdout. */
1361 if (_bfd_error_program_name
!= NULL
)
1362 fprintf (stderr
, "%s: ", _bfd_error_program_name
);
1364 fprintf (stderr
, "BFD: ");
1366 _bfd_doprnt (stderr
, fmt
, args
);
1368 /* On AIX, putc is implemented as a macro that triggers a -Wunused-value
1369 warning, so use the fputc function to avoid it. */
1370 fputc ('\n', stderr
);
1374 /* This is a function pointer to the routine which should handle BFD
1375 error messages. It is called when a BFD routine encounters an
1376 error for which it wants to print a message. Going through a
1377 function pointer permits a program linked against BFD to intercept
1378 the messages and deal with them itself. */
1380 static bfd_error_handler_type _bfd_error_internal
= error_handler_internal
;
1387 void _bfd_error_handler (const char *fmt, ...) ATTRIBUTE_PRINTF_1;
1390 This is the default routine to handle BFD error messages.
1391 Like fprintf (stderr, ...), but also handles some extra format
1394 %pA section name from section. For group components, prints
1396 %pB file name from bfd. For archive components, prints
1399 Beware: Only supports a maximum of 9 format arguments.
1403 _bfd_error_handler (const char *fmt
, ...)
1408 _bfd_error_internal (fmt
, ap
);
1414 bfd_set_error_handler
1417 bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type);
1420 Set the BFD error handler function. Returns the previous
1424 bfd_error_handler_type
1425 bfd_set_error_handler (bfd_error_handler_type pnew
)
1427 bfd_error_handler_type pold
;
1429 pold
= _bfd_error_internal
;
1430 _bfd_error_internal
= pnew
;
1436 bfd_set_error_program_name
1439 void bfd_set_error_program_name (const char *);
1442 Set the program name to use when printing a BFD error. This
1443 is printed before the error message followed by a colon and
1444 space. The string must not be changed after it is passed to
1449 bfd_set_error_program_name (const char *name
)
1451 _bfd_error_program_name
= name
;
1458 If BFD finds an internal inconsistency, the bfd assert
1459 handler is called with information on the BFD version, BFD
1460 source file and line. If this happens, most programs linked
1461 against BFD are expected to want to exit with an error, or mark
1462 the current BFD operation as failed, so it is recommended to
1463 override the default handler, which just calls
1464 _bfd_error_handler and continues.
1468 .typedef void (*bfd_assert_handler_type) (const char *bfd_formatmsg,
1469 . const char *bfd_version,
1470 . const char *bfd_file,
1475 /* Note the use of bfd_ prefix on the parameter names above: we want to
1476 show which one is the message and which is the version by naming the
1477 parameters, but avoid polluting the program-using-bfd namespace as
1478 the typedef is visible in the exported headers that the program
1479 includes. Below, it's just for consistency. */
1482 _bfd_default_assert_handler (const char *bfd_formatmsg
,
1483 const char *bfd_version
,
1484 const char *bfd_file
,
1488 _bfd_error_handler (bfd_formatmsg
, bfd_version
, bfd_file
, bfd_line
);
1491 /* Similar to _bfd_error_handler, a program can decide to exit on an
1492 internal BFD error. We use a non-variadic type to simplify passing
1493 on parameters to other functions, e.g. _bfd_error_handler. */
1495 static bfd_assert_handler_type _bfd_assert_handler
= _bfd_default_assert_handler
;
1499 bfd_set_assert_handler
1502 bfd_assert_handler_type bfd_set_assert_handler (bfd_assert_handler_type);
1505 Set the BFD assert handler function. Returns the previous
1509 bfd_assert_handler_type
1510 bfd_set_assert_handler (bfd_assert_handler_type pnew
)
1512 bfd_assert_handler_type pold
;
1514 pold
= _bfd_assert_handler
;
1515 _bfd_assert_handler
= pnew
;
1521 Miscellaneous, Memory Usage, Error reporting, BFD front end
1527 Miscellaneous functions
1532 bfd_get_reloc_upper_bound
1535 long bfd_get_reloc_upper_bound (bfd *abfd, asection *sect);
1538 Return the number of bytes required to store the
1539 relocation information associated with section @var{sect}
1540 attached to bfd @var{abfd}. If an error occurs, return -1.
1545 bfd_get_reloc_upper_bound (bfd
*abfd
, sec_ptr asect
)
1547 if (abfd
->format
!= bfd_object
)
1549 bfd_set_error (bfd_error_invalid_operation
);
1553 return BFD_SEND (abfd
, _get_reloc_upper_bound
, (abfd
, asect
));
1558 bfd_canonicalize_reloc
1561 long bfd_canonicalize_reloc
1562 (bfd *abfd, asection *sec, arelent **loc, asymbol **syms);
1565 Call the back end associated with the open BFD
1566 @var{abfd} and translate the external form of the relocation
1567 information attached to @var{sec} into the internal canonical
1568 form. Place the table into memory at @var{loc}, which has
1569 been preallocated, usually by a call to
1570 <<bfd_get_reloc_upper_bound>>. Returns the number of relocs, or
1573 The @var{syms} table is also needed for horrible internal magic
1578 bfd_canonicalize_reloc (bfd
*abfd
,
1583 if (abfd
->format
!= bfd_object
)
1585 bfd_set_error (bfd_error_invalid_operation
);
1589 return BFD_SEND (abfd
, _bfd_canonicalize_reloc
,
1590 (abfd
, asect
, location
, symbols
));
1599 (bfd *abfd, asection *sec, arelent **rel, unsigned int count);
1602 Set the relocation pointer and count within
1603 section @var{sec} to the values @var{rel} and @var{count}.
1604 The argument @var{abfd} is ignored.
1606 .#define bfd_set_reloc(abfd, asect, location, count) \
1607 . BFD_SEND (abfd, _bfd_set_reloc, (abfd, asect, location, count))
1615 bfd_boolean bfd_set_file_flags (bfd *abfd, flagword flags);
1618 Set the flag word in the BFD @var{abfd} to the value @var{flags}.
1620 Possible errors are:
1621 o <<bfd_error_wrong_format>> - The target bfd was not of object format.
1622 o <<bfd_error_invalid_operation>> - The target bfd was open for reading.
1623 o <<bfd_error_invalid_operation>> -
1624 The flag word contained a bit which was not applicable to the
1625 type of file. E.g., an attempt was made to set the <<D_PAGED>> bit
1626 on a BFD format which does not support demand paging.
1631 bfd_set_file_flags (bfd
*abfd
, flagword flags
)
1633 if (abfd
->format
!= bfd_object
)
1635 bfd_set_error (bfd_error_wrong_format
);
1639 if (bfd_read_p (abfd
))
1641 bfd_set_error (bfd_error_invalid_operation
);
1645 abfd
->flags
= flags
;
1646 if ((flags
& bfd_applicable_file_flags (abfd
)) != flags
)
1648 bfd_set_error (bfd_error_invalid_operation
);
1656 bfd_assert (const char *file
, int line
)
1658 /* xgettext:c-format */
1659 (*_bfd_assert_handler
) (_("BFD %s assertion fail %s:%d"),
1660 BFD_VERSION_STRING
, file
, line
);
1663 /* A more or less friendly abort message. In libbfd.h abort is
1664 defined to call this function. */
1667 _bfd_abort (const char *file
, int line
, const char *fn
)
1671 /* xgettext:c-format */
1672 (_("BFD %s internal error, aborting at %s:%d in %s\n"),
1673 BFD_VERSION_STRING
, file
, line
, fn
);
1676 /* xgettext:c-format */
1677 (_("BFD %s internal error, aborting at %s:%d\n"),
1678 BFD_VERSION_STRING
, file
, line
);
1679 _bfd_error_handler (_("Please report this bug.\n"));
1680 _exit (EXIT_FAILURE
);
1688 int bfd_get_arch_size (bfd *abfd);
1691 Returns the normalized architecture address size, in bits, as
1692 determined by the object file's format. By normalized, we mean
1693 either 32 or 64. For ELF, this information is included in the
1694 header. Use bfd_arch_bits_per_address for number of bits in
1695 the architecture address.
1698 Returns the arch size in bits if known, <<-1>> otherwise.
1702 bfd_get_arch_size (bfd
*abfd
)
1704 if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1705 return get_elf_backend_data (abfd
)->s
->arch_size
;
1707 return bfd_arch_bits_per_address (abfd
) > 32 ? 64 : 32;
1712 bfd_get_sign_extend_vma
1715 int bfd_get_sign_extend_vma (bfd *abfd);
1718 Indicates if the target architecture "naturally" sign extends
1719 an address. Some architectures implicitly sign extend address
1720 values when they are converted to types larger than the size
1721 of an address. For instance, bfd_get_start_address() will
1722 return an address sign extended to fill a bfd_vma when this is
1726 Returns <<1>> if the target architecture is known to sign
1727 extend addresses, <<0>> if the target architecture is known to
1728 not sign extend addresses, and <<-1>> otherwise.
1732 bfd_get_sign_extend_vma (bfd
*abfd
)
1736 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
1737 return get_elf_backend_data (abfd
)->sign_extend_vma
;
1739 name
= bfd_get_target (abfd
);
1741 /* Return a proper value for DJGPP & PE COFF.
1742 This function is required for DWARF2 support, but there is
1743 no place to store this information in the COFF back end.
1744 Should enough other COFF targets add support for DWARF2,
1745 a place will have to be found. Until then, this hack will do. */
1746 if (CONST_STRNEQ (name
, "coff-go32")
1747 || strcmp (name
, "pe-i386") == 0
1748 || strcmp (name
, "pei-i386") == 0
1749 || strcmp (name
, "pe-x86-64") == 0
1750 || strcmp (name
, "pei-x86-64") == 0
1751 || strcmp (name
, "pe-arm-wince-little") == 0
1752 || strcmp (name
, "pei-arm-wince-little") == 0
1753 || strcmp (name
, "aixcoff-rs6000") == 0
1754 || strcmp (name
, "aix5coff64-rs6000") == 0)
1757 if (CONST_STRNEQ (name
, "mach-o"))
1760 bfd_set_error (bfd_error_wrong_format
);
1766 bfd_set_start_address
1769 bfd_boolean bfd_set_start_address (bfd *abfd, bfd_vma vma);
1772 Make @var{vma} the entry point of output BFD @var{abfd}.
1775 Returns <<TRUE>> on success, <<FALSE>> otherwise.
1779 bfd_set_start_address (bfd
*abfd
, bfd_vma vma
)
1781 abfd
->start_address
= vma
;
1790 unsigned int bfd_get_gp_size (bfd *abfd);
1793 Return the maximum size of objects to be optimized using the GP
1794 register under MIPS ECOFF. This is typically set by the <<-G>>
1795 argument to the compiler, assembler or linker.
1799 bfd_get_gp_size (bfd
*abfd
)
1801 if (abfd
->format
== bfd_object
)
1803 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1804 return ecoff_data (abfd
)->gp_size
;
1805 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1806 return elf_gp_size (abfd
);
1816 void bfd_set_gp_size (bfd *abfd, unsigned int i);
1819 Set the maximum size of objects to be optimized using the GP
1820 register under ECOFF or MIPS ELF. This is typically set by
1821 the <<-G>> argument to the compiler, assembler or linker.
1825 bfd_set_gp_size (bfd
*abfd
, unsigned int i
)
1827 /* Don't try to set GP size on an archive or core file! */
1828 if (abfd
->format
!= bfd_object
)
1831 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1832 ecoff_data (abfd
)->gp_size
= i
;
1833 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1834 elf_gp_size (abfd
) = i
;
1837 /* Get the GP value. This is an internal function used by some of the
1838 relocation special_function routines on targets which support a GP
1842 _bfd_get_gp_value (bfd
*abfd
)
1846 if (abfd
->format
!= bfd_object
)
1849 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1850 return ecoff_data (abfd
)->gp
;
1851 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1852 return elf_gp (abfd
);
1857 /* Set the GP value. */
1860 _bfd_set_gp_value (bfd
*abfd
, bfd_vma v
)
1864 if (abfd
->format
!= bfd_object
)
1867 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1868 ecoff_data (abfd
)->gp
= v
;
1869 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1878 bfd_vma bfd_scan_vma (const char *string, const char **end, int base);
1881 Convert, like <<strtoul>>, a numerical expression
1882 @var{string} into a <<bfd_vma>> integer, and return that integer.
1883 (Though without as many bells and whistles as <<strtoul>>.)
1884 The expression is assumed to be unsigned (i.e., positive).
1885 If given a @var{base}, it is used as the base for conversion.
1886 A base of 0 causes the function to interpret the string
1887 in hex if a leading "0x" or "0X" is found, otherwise
1888 in octal if a leading zero is found, otherwise in decimal.
1890 If the value would overflow, the maximum <<bfd_vma>> value is
1895 bfd_scan_vma (const char *string
, const char **end
, int base
)
1899 unsigned int cutlim
;
1902 /* Let the host do it if possible. */
1903 if (sizeof (bfd_vma
) <= sizeof (unsigned long))
1904 return strtoul (string
, (char **) end
, base
);
1906 #if defined (HAVE_STRTOULL) && defined (HAVE_LONG_LONG)
1907 if (sizeof (bfd_vma
) <= sizeof (unsigned long long))
1908 return strtoull (string
, (char **) end
, base
);
1913 if (string
[0] == '0')
1915 if ((string
[1] == 'x') || (string
[1] == 'X'))
1922 if ((base
< 2) || (base
> 36))
1927 && (string
[1] == 'x' || string
[1] == 'X')
1928 && ISXDIGIT (string
[2]))
1933 cutoff
= (~ (bfd_vma
) 0) / (bfd_vma
) base
;
1934 cutlim
= (~ (bfd_vma
) 0) % (bfd_vma
) base
;
1942 if (ISDIGIT (digit
))
1943 digit
= digit
- '0';
1944 else if (ISALPHA (digit
))
1945 digit
= TOUPPER (digit
) - 'A' + 10;
1948 if (digit
>= (unsigned int) base
)
1950 if (value
> cutoff
|| (value
== cutoff
&& digit
> cutlim
))
1952 value
= value
* base
+ digit
;
1957 value
= ~ (bfd_vma
) 0;
1967 bfd_copy_private_header_data
1970 bfd_boolean bfd_copy_private_header_data (bfd *ibfd, bfd *obfd);
1973 Copy private BFD header information from the BFD @var{ibfd} to the
1974 the BFD @var{obfd}. This copies information that may require
1975 sections to exist, but does not require symbol tables. Return
1976 <<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_header_data(ibfd, obfd) \
1983 . BFD_SEND (obfd, _bfd_copy_private_header_data, \
1990 bfd_copy_private_bfd_data
1993 bfd_boolean bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd);
1996 Copy private BFD information from the BFD @var{ibfd} to the
1997 the BFD @var{obfd}. Return <<TRUE>> on success, <<FALSE>> on error.
1998 Possible error returns are:
2000 o <<bfd_error_no_memory>> -
2001 Not enough memory exists to create private data for @var{obfd}.
2003 .#define bfd_copy_private_bfd_data(ibfd, obfd) \
2004 . BFD_SEND (obfd, _bfd_copy_private_bfd_data, \
2011 bfd_set_private_flags
2014 bfd_boolean bfd_set_private_flags (bfd *abfd, flagword flags);
2017 Set private BFD flag information in the BFD @var{abfd}.
2018 Return <<TRUE>> on success, <<FALSE>> on error. Possible error
2021 o <<bfd_error_no_memory>> -
2022 Not enough memory exists to create private data for @var{obfd}.
2024 .#define bfd_set_private_flags(abfd, flags) \
2025 . BFD_SEND (abfd, _bfd_set_private_flags, (abfd, flags))
2034 The following functions exist but have not yet been documented.
2036 .#define bfd_sizeof_headers(abfd, info) \
2037 . BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, info))
2039 .#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
2040 . BFD_SEND (abfd, _bfd_find_nearest_line, \
2041 . (abfd, syms, sec, off, file, func, line, NULL))
2043 .#define bfd_find_nearest_line_discriminator(abfd, sec, syms, off, file, func, \
2045 . BFD_SEND (abfd, _bfd_find_nearest_line, \
2046 . (abfd, syms, sec, off, file, func, line, disc))
2048 .#define bfd_find_line(abfd, syms, sym, file, line) \
2049 . BFD_SEND (abfd, _bfd_find_line, \
2050 . (abfd, syms, sym, file, line))
2052 .#define bfd_find_inliner_info(abfd, file, func, line) \
2053 . BFD_SEND (abfd, _bfd_find_inliner_info, \
2054 . (abfd, file, func, line))
2056 .#define bfd_debug_info_start(abfd) \
2057 . BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
2059 .#define bfd_debug_info_end(abfd) \
2060 . BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
2062 .#define bfd_debug_info_accumulate(abfd, section) \
2063 . BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
2065 .#define bfd_stat_arch_elt(abfd, stat) \
2066 . BFD_SEND (abfd->my_archive ? abfd->my_archive : abfd, \
2067 . _bfd_stat_arch_elt, (abfd, stat))
2069 .#define bfd_update_armap_timestamp(abfd) \
2070 . BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))
2072 .#define bfd_set_arch_mach(abfd, arch, mach)\
2073 . BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
2075 .#define bfd_relax_section(abfd, section, link_info, again) \
2076 . BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
2078 .#define bfd_gc_sections(abfd, link_info) \
2079 . BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info))
2081 .#define bfd_lookup_section_flags(link_info, flag_info, section) \
2082 . BFD_SEND (abfd, _bfd_lookup_section_flags, (link_info, flag_info, section))
2084 .#define bfd_merge_sections(abfd, link_info) \
2085 . BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info))
2087 .#define bfd_is_group_section(abfd, sec) \
2088 . BFD_SEND (abfd, _bfd_is_group_section, (abfd, sec))
2090 .#define bfd_group_name(abfd, sec) \
2091 . BFD_SEND (abfd, _bfd_group_name, (abfd, sec))
2093 .#define bfd_discard_group(abfd, sec) \
2094 . BFD_SEND (abfd, _bfd_discard_group, (abfd, sec))
2096 .#define bfd_link_hash_table_create(abfd) \
2097 . BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
2099 .#define bfd_link_add_symbols(abfd, info) \
2100 . BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
2102 .#define bfd_link_just_syms(abfd, sec, info) \
2103 . BFD_SEND (abfd, _bfd_link_just_syms, (sec, info))
2105 .#define bfd_final_link(abfd, info) \
2106 . BFD_SEND (abfd, _bfd_final_link, (abfd, info))
2108 .#define bfd_free_cached_info(abfd) \
2109 . BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
2111 .#define bfd_get_dynamic_symtab_upper_bound(abfd) \
2112 . BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
2114 .#define bfd_print_private_bfd_data(abfd, file)\
2115 . BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file))
2117 .#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
2118 . BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
2120 .#define bfd_get_synthetic_symtab(abfd, count, syms, dyncount, dynsyms, ret) \
2121 . BFD_SEND (abfd, _bfd_get_synthetic_symtab, (abfd, count, syms, \
2122 . dyncount, dynsyms, ret))
2124 .#define bfd_get_dynamic_reloc_upper_bound(abfd) \
2125 . BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
2127 .#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
2128 . BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
2130 .extern bfd_byte *bfd_get_relocated_section_contents
2131 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *,
2132 . bfd_boolean, asymbol **);
2138 bfd_get_relocated_section_contents (bfd
*abfd
,
2139 struct bfd_link_info
*link_info
,
2140 struct bfd_link_order
*link_order
,
2142 bfd_boolean relocatable
,
2146 bfd_byte
*(*fn
) (bfd
*, struct bfd_link_info
*, struct bfd_link_order
*,
2147 bfd_byte
*, bfd_boolean
, asymbol
**);
2149 if (link_order
->type
== bfd_indirect_link_order
)
2151 abfd2
= link_order
->u
.indirect
.section
->owner
;
2158 fn
= abfd2
->xvec
->_bfd_get_relocated_section_contents
;
2160 return (*fn
) (abfd
, link_info
, link_order
, data
, relocatable
, symbols
);
2163 /* Record information about an ELF program header. */
2166 bfd_record_phdr (bfd
*abfd
,
2168 bfd_boolean flags_valid
,
2170 bfd_boolean at_valid
,
2171 bfd_vma at
, /* Bytes. */
2172 bfd_boolean includes_filehdr
,
2173 bfd_boolean includes_phdrs
,
2177 struct elf_segment_map
*m
, **pm
;
2179 unsigned int opb
= bfd_octets_per_byte (abfd
, NULL
);
2181 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
2184 amt
= sizeof (struct elf_segment_map
);
2185 amt
+= ((bfd_size_type
) count
- 1) * sizeof (asection
*);
2186 m
= (struct elf_segment_map
*) bfd_zalloc (abfd
, amt
);
2192 m
->p_paddr
= at
* opb
;
2193 m
->p_flags_valid
= flags_valid
;
2194 m
->p_paddr_valid
= at_valid
;
2195 m
->includes_filehdr
= includes_filehdr
;
2196 m
->includes_phdrs
= includes_phdrs
;
2199 memcpy (m
->sections
, secs
, count
* sizeof (asection
*));
2201 for (pm
= &elf_seg_map (abfd
); *pm
!= NULL
; pm
= &(*pm
)->next
)
2209 /* Return true iff this target is 32-bit. */
2214 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
2216 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
2217 return bed
->s
->elfclass
== ELFCLASS32
;
2220 /* For non-ELF targets, use architecture information. */
2221 return bfd_arch_bits_per_address (abfd
) <= 32;
2225 /* bfd_sprintf_vma and bfd_fprintf_vma display an address in the
2226 target's address size. */
2229 bfd_sprintf_vma (bfd
*abfd ATTRIBUTE_UNUSED
, char *buf
, bfd_vma value
)
2234 sprintf (buf
, "%08lx", (unsigned long) value
& 0xffffffff);
2238 sprintf_vma (buf
, value
);
2242 bfd_fprintf_vma (bfd
*abfd ATTRIBUTE_UNUSED
, void *stream
, bfd_vma value
)
2247 fprintf ((FILE *) stream
, "%08lx", (unsigned long) value
& 0xffffffff);
2251 fprintf_vma ((FILE *) stream
, value
);
2259 bfd_boolean bfd_alt_mach_code (bfd *abfd, int alternative);
2263 When more than one machine code number is available for the
2264 same machine type, this function can be used to switch between
2265 the preferred one (alternative == 0) and any others. Currently,
2266 only ELF supports this feature, with up to two alternate
2271 bfd_alt_mach_code (bfd
*abfd
, int alternative
)
2273 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
2277 switch (alternative
)
2280 code
= get_elf_backend_data (abfd
)->elf_machine_code
;
2284 code
= get_elf_backend_data (abfd
)->elf_machine_alt1
;
2290 code
= get_elf_backend_data (abfd
)->elf_machine_alt2
;
2299 elf_elfheader (abfd
)->e_machine
= code
;
2309 bfd_emul_get_maxpagesize
2312 bfd_vma bfd_emul_get_maxpagesize (const char *);
2315 Returns the maximum page size, in bytes, as determined by
2319 Returns the maximum page size in bytes for ELF, 0 otherwise.
2323 bfd_emul_get_maxpagesize (const char *emul
)
2325 const bfd_target
*target
;
2327 target
= bfd_find_target (emul
, NULL
);
2329 && target
->flavour
== bfd_target_elf_flavour
)
2330 return xvec_get_elf_backend_data (target
)->maxpagesize
;
2336 bfd_elf_set_pagesize (const bfd_target
*target
, bfd_vma size
,
2337 int offset
, const bfd_target
*orig_target
)
2339 if (target
->flavour
== bfd_target_elf_flavour
)
2341 const struct elf_backend_data
*bed
;
2343 bed
= xvec_get_elf_backend_data (target
);
2344 *((bfd_vma
*) ((char *) bed
+ offset
)) = size
;
2347 if (target
->alternative_target
2348 && target
->alternative_target
!= orig_target
)
2349 bfd_elf_set_pagesize (target
->alternative_target
, size
, offset
,
2355 bfd_emul_set_maxpagesize
2358 void bfd_emul_set_maxpagesize (const char *, bfd_vma);
2361 For ELF, set the maximum page size for the emulation. It is
2362 a no-op for other formats.
2367 bfd_emul_set_maxpagesize (const char *emul
, bfd_vma size
)
2369 const bfd_target
*target
;
2371 target
= bfd_find_target (emul
, NULL
);
2373 bfd_elf_set_pagesize (target
, size
,
2374 offsetof (struct elf_backend_data
,
2375 maxpagesize
), target
);
2380 bfd_emul_get_commonpagesize
2383 bfd_vma bfd_emul_get_commonpagesize (const char *, bfd_boolean);
2386 Returns the common page size, in bytes, as determined by
2390 Returns the common page size in bytes for ELF, 0 otherwise.
2394 bfd_emul_get_commonpagesize (const char *emul
, bfd_boolean relro
)
2396 const bfd_target
*target
;
2398 target
= bfd_find_target (emul
, NULL
);
2400 && target
->flavour
== bfd_target_elf_flavour
)
2402 const struct elf_backend_data
*bed
;
2404 bed
= xvec_get_elf_backend_data (target
);
2406 return bed
->relropagesize
;
2408 return bed
->commonpagesize
;
2415 bfd_emul_set_commonpagesize
2418 void bfd_emul_set_commonpagesize (const char *, bfd_vma);
2421 For ELF, set the common page size for the emulation. It is
2422 a no-op for other formats.
2427 bfd_emul_set_commonpagesize (const char *emul
, bfd_vma size
)
2429 const bfd_target
*target
;
2431 target
= bfd_find_target (emul
, NULL
);
2433 bfd_elf_set_pagesize (target
, size
,
2434 offsetof (struct elf_backend_data
,
2435 commonpagesize
), target
);
2443 char *bfd_demangle (bfd *, const char *, int);
2446 Wrapper around cplus_demangle. Strips leading underscores and
2447 other such chars that would otherwise confuse the demangler.
2448 If passed a g++ v3 ABI mangled name, returns a buffer allocated
2449 with malloc holding the demangled name. Returns NULL otherwise
2450 and on memory alloc failure.
2454 bfd_demangle (bfd
*abfd
, const char *name
, int options
)
2457 const char *pre
, *suf
;
2459 bfd_boolean skip_lead
;
2461 skip_lead
= (abfd
!= NULL
2463 && bfd_get_symbol_leading_char (abfd
) == *name
);
2467 /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF
2468 or the MS PE format. These formats have a number of leading '.'s
2469 on at least some symbols, so we remove all dots to avoid
2470 confusing the demangler. */
2472 while (*name
== '.' || *name
== '$')
2474 pre_len
= name
- pre
;
2476 /* Strip off @plt and suchlike too. */
2478 suf
= strchr (name
, '@');
2481 alloc
= (char *) bfd_malloc (suf
- name
+ 1);
2484 memcpy (alloc
, name
, suf
- name
);
2485 alloc
[suf
- name
] = '\0';
2489 res
= cplus_demangle (name
, options
);
2498 size_t len
= strlen (pre
) + 1;
2499 alloc
= (char *) bfd_malloc (len
);
2502 memcpy (alloc
, pre
, len
);
2508 /* Put back any prefix or suffix. */
2509 if (pre_len
!= 0 || suf
!= NULL
)
2518 suf_len
= strlen (suf
) + 1;
2519 final
= (char *) bfd_malloc (pre_len
+ len
+ suf_len
);
2522 memcpy (final
, pre
, pre_len
);
2523 memcpy (final
+ pre_len
, res
, len
);
2524 memcpy (final
+ pre_len
+ len
, suf
, suf_len
);
2535 bfd_update_compression_header
2538 void bfd_update_compression_header
2539 (bfd *abfd, bfd_byte *contents, asection *sec);
2542 Set the compression header at CONTENTS of SEC in ABFD and update
2543 elf_section_flags for compression.
2547 bfd_update_compression_header (bfd
*abfd
, bfd_byte
*contents
,
2550 if ((abfd
->flags
& BFD_COMPRESS
) == 0)
2553 switch (bfd_get_flavour (abfd
))
2555 case bfd_target_elf_flavour
:
2556 if ((abfd
->flags
& BFD_COMPRESS_GABI
) != 0)
2558 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
2560 /* Set the SHF_COMPRESSED bit. */
2561 elf_section_flags (sec
) |= SHF_COMPRESSED
;
2563 if (bed
->s
->elfclass
== ELFCLASS32
)
2565 Elf32_External_Chdr
*echdr
= (Elf32_External_Chdr
*) contents
;
2566 bfd_put_32 (abfd
, ELFCOMPRESS_ZLIB
, &echdr
->ch_type
);
2567 bfd_put_32 (abfd
, sec
->size
, &echdr
->ch_size
);
2568 bfd_put_32 (abfd
, 1 << sec
->alignment_power
,
2569 &echdr
->ch_addralign
);
2570 /* bfd_log2 (alignof (Elf32_Chdr)) */
2571 bfd_set_section_alignment (sec
, 2);
2575 Elf64_External_Chdr
*echdr
= (Elf64_External_Chdr
*) contents
;
2576 bfd_put_32 (abfd
, ELFCOMPRESS_ZLIB
, &echdr
->ch_type
);
2577 bfd_put_32 (abfd
, 0, &echdr
->ch_reserved
);
2578 bfd_put_64 (abfd
, sec
->size
, &echdr
->ch_size
);
2579 bfd_put_64 (abfd
, 1 << sec
->alignment_power
,
2580 &echdr
->ch_addralign
);
2581 /* bfd_log2 (alignof (Elf64_Chdr)) */
2582 bfd_set_section_alignment (sec
, 3);
2587 /* Clear the SHF_COMPRESSED bit. */
2588 elf_section_flags (sec
) &= ~SHF_COMPRESSED
;
2592 /* Write the zlib header. It should be "ZLIB" followed by
2593 the uncompressed section size, 8 bytes in big-endian
2595 memcpy (contents
, "ZLIB", 4);
2596 bfd_putb64 (sec
->size
, contents
+ 4);
2597 /* No way to keep the original alignment, just use 1 always. */
2598 bfd_set_section_alignment (sec
, 0);
2605 bfd_check_compression_header
2608 bfd_boolean bfd_check_compression_header
2609 (bfd *abfd, bfd_byte *contents, asection *sec,
2610 bfd_size_type *uncompressed_size,
2611 unsigned int *uncompressed_alignment_power);
2614 Check the compression header at CONTENTS of SEC in ABFD and
2615 store the uncompressed size in UNCOMPRESSED_SIZE and the
2616 uncompressed data alignment in UNCOMPRESSED_ALIGNMENT_POWER
2617 if the compression header is valid.
2620 Return TRUE if the compression header is valid.
2624 bfd_check_compression_header (bfd
*abfd
, bfd_byte
*contents
,
2626 bfd_size_type
*uncompressed_size
,
2627 unsigned int *uncompressed_alignment_power
)
2629 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
2630 && (elf_section_flags (sec
) & SHF_COMPRESSED
) != 0)
2632 Elf_Internal_Chdr chdr
;
2633 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
2634 if (bed
->s
->elfclass
== ELFCLASS32
)
2636 Elf32_External_Chdr
*echdr
= (Elf32_External_Chdr
*) contents
;
2637 chdr
.ch_type
= bfd_get_32 (abfd
, &echdr
->ch_type
);
2638 chdr
.ch_size
= bfd_get_32 (abfd
, &echdr
->ch_size
);
2639 chdr
.ch_addralign
= bfd_get_32 (abfd
, &echdr
->ch_addralign
);
2643 Elf64_External_Chdr
*echdr
= (Elf64_External_Chdr
*) contents
;
2644 chdr
.ch_type
= bfd_get_32 (abfd
, &echdr
->ch_type
);
2645 chdr
.ch_size
= bfd_get_64 (abfd
, &echdr
->ch_size
);
2646 chdr
.ch_addralign
= bfd_get_64 (abfd
, &echdr
->ch_addralign
);
2648 if (chdr
.ch_type
== ELFCOMPRESS_ZLIB
2649 && chdr
.ch_addralign
== (chdr
.ch_addralign
& -chdr
.ch_addralign
))
2651 *uncompressed_size
= chdr
.ch_size
;
2652 *uncompressed_alignment_power
= bfd_log2 (chdr
.ch_addralign
);
2662 bfd_get_compression_header_size
2665 int bfd_get_compression_header_size (bfd *abfd, asection *sec);
2668 Return the size of the compression header of SEC in ABFD.
2671 Return the size of the compression header in bytes.
2675 bfd_get_compression_header_size (bfd
*abfd
, asection
*sec
)
2677 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
2681 if (!(abfd
->flags
& BFD_COMPRESS_GABI
))
2684 else if (!(elf_section_flags (sec
) & SHF_COMPRESSED
))
2687 if (get_elf_backend_data (abfd
)->s
->elfclass
== ELFCLASS32
)
2688 return sizeof (Elf32_External_Chdr
);
2690 return sizeof (Elf64_External_Chdr
);
2698 bfd_convert_section_size
2701 bfd_size_type bfd_convert_section_size
2702 (bfd *ibfd, asection *isec, bfd *obfd, bfd_size_type size);
2705 Convert the size @var{size} of the section @var{isec} in input
2706 BFD @var{ibfd} to the section size in output BFD @var{obfd}.
2710 bfd_convert_section_size (bfd
*ibfd
, sec_ptr isec
, bfd
*obfd
,
2713 bfd_size_type hdr_size
;
2715 /* Do nothing if either input or output aren't ELF. */
2716 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2717 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
2720 /* Do nothing if ELF classes of input and output are the same. */
2721 if (get_elf_backend_data (ibfd
)->s
->elfclass
2722 == get_elf_backend_data (obfd
)->s
->elfclass
)
2725 /* Convert GNU property size. */
2726 if (CONST_STRNEQ (isec
->name
, NOTE_GNU_PROPERTY_SECTION_NAME
))
2727 return _bfd_elf_convert_gnu_property_size (ibfd
, obfd
);
2729 /* Do nothing if input file will be decompressed. */
2730 if ((ibfd
->flags
& BFD_DECOMPRESS
))
2733 /* Do nothing if the input section isn't a SHF_COMPRESSED section. */
2734 hdr_size
= bfd_get_compression_header_size (ibfd
, isec
);
2738 /* Adjust the size of the output SHF_COMPRESSED section. */
2739 if (hdr_size
== sizeof (Elf32_External_Chdr
))
2740 return (size
- sizeof (Elf32_External_Chdr
)
2741 + sizeof (Elf64_External_Chdr
));
2743 return (size
- sizeof (Elf64_External_Chdr
)
2744 + sizeof (Elf32_External_Chdr
));
2749 bfd_convert_section_contents
2752 bfd_boolean bfd_convert_section_contents
2753 (bfd *ibfd, asection *isec, bfd *obfd,
2754 bfd_byte **ptr, bfd_size_type *ptr_size);
2757 Convert the contents, stored in @var{*ptr}, of the section
2758 @var{isec} in input BFD @var{ibfd} to output BFD @var{obfd}
2759 if needed. The original buffer pointed to by @var{*ptr} may
2760 be freed and @var{*ptr} is returned with memory malloc'd by this
2761 function, and the new size written to @var{ptr_size}.
2765 bfd_convert_section_contents (bfd
*ibfd
, sec_ptr isec
, bfd
*obfd
,
2766 bfd_byte
**ptr
, bfd_size_type
*ptr_size
)
2769 bfd_size_type ihdr_size
, ohdr_size
, size
;
2770 Elf_Internal_Chdr chdr
;
2771 bfd_boolean use_memmove
;
2773 /* Do nothing if either input or output aren't ELF. */
2774 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2775 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
2778 /* Do nothing if ELF classes of input and output are the same. */
2779 if (get_elf_backend_data (ibfd
)->s
->elfclass
2780 == get_elf_backend_data (obfd
)->s
->elfclass
)
2783 /* Convert GNU properties. */
2784 if (CONST_STRNEQ (isec
->name
, NOTE_GNU_PROPERTY_SECTION_NAME
))
2785 return _bfd_elf_convert_gnu_properties (ibfd
, isec
, obfd
, ptr
,
2788 /* Do nothing if input file will be decompressed. */
2789 if ((ibfd
->flags
& BFD_DECOMPRESS
))
2792 /* Do nothing if the input section isn't a SHF_COMPRESSED section. */
2793 ihdr_size
= bfd_get_compression_header_size (ibfd
, isec
);
2797 /* PR 25221. Check for corrupt input sections. */
2798 if (ihdr_size
> bfd_get_section_limit (ibfd
, isec
))
2799 /* FIXME: Issue a warning about a corrupt
2800 compression header size field ? */
2805 /* Convert the contents of the input SHF_COMPRESSED section to
2806 output. Get the input compression header and the size of the
2807 output compression header. */
2808 if (ihdr_size
== sizeof (Elf32_External_Chdr
))
2810 Elf32_External_Chdr
*echdr
= (Elf32_External_Chdr
*) contents
;
2811 chdr
.ch_type
= bfd_get_32 (ibfd
, &echdr
->ch_type
);
2812 chdr
.ch_size
= bfd_get_32 (ibfd
, &echdr
->ch_size
);
2813 chdr
.ch_addralign
= bfd_get_32 (ibfd
, &echdr
->ch_addralign
);
2815 ohdr_size
= sizeof (Elf64_External_Chdr
);
2817 use_memmove
= FALSE
;
2819 else if (ihdr_size
!= sizeof (Elf64_External_Chdr
))
2821 /* FIXME: Issue a warning about a corrupt
2822 compression header size field ? */
2827 Elf64_External_Chdr
*echdr
= (Elf64_External_Chdr
*) contents
;
2828 chdr
.ch_type
= bfd_get_32 (ibfd
, &echdr
->ch_type
);
2829 chdr
.ch_size
= bfd_get_64 (ibfd
, &echdr
->ch_size
);
2830 chdr
.ch_addralign
= bfd_get_64 (ibfd
, &echdr
->ch_addralign
);
2832 ohdr_size
= sizeof (Elf32_External_Chdr
);
2836 size
= bfd_section_size (isec
) - ihdr_size
+ ohdr_size
;
2839 contents
= (bfd_byte
*) bfd_malloc (size
);
2840 if (contents
== NULL
)
2844 /* Write out the output compression header. */
2845 if (ohdr_size
== sizeof (Elf32_External_Chdr
))
2847 Elf32_External_Chdr
*echdr
= (Elf32_External_Chdr
*) contents
;
2848 bfd_put_32 (obfd
, ELFCOMPRESS_ZLIB
, &echdr
->ch_type
);
2849 bfd_put_32 (obfd
, chdr
.ch_size
, &echdr
->ch_size
);
2850 bfd_put_32 (obfd
, chdr
.ch_addralign
, &echdr
->ch_addralign
);
2854 Elf64_External_Chdr
*echdr
= (Elf64_External_Chdr
*) contents
;
2855 bfd_put_32 (obfd
, ELFCOMPRESS_ZLIB
, &echdr
->ch_type
);
2856 bfd_put_32 (obfd
, 0, &echdr
->ch_reserved
);
2857 bfd_put_64 (obfd
, chdr
.ch_size
, &echdr
->ch_size
);
2858 bfd_put_64 (obfd
, chdr
.ch_addralign
, &echdr
->ch_addralign
);
2861 /* Copy the compressed contents. */
2863 memmove (contents
+ ohdr_size
, *ptr
+ ihdr_size
, size
- ohdr_size
);
2866 memcpy (contents
+ ohdr_size
, *ptr
+ ihdr_size
, size
- ohdr_size
);