1 /* Generic BFD library interface and support routines.
2 Copyright (C) 1990-2019 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 . {* The format which belongs to the BFD. (object, core, etc.) *}
89 . ENUM_BITFIELD (bfd_format) format : 3;
91 . {* The direction with which the BFD was opened. *}
92 . ENUM_BITFIELD (bfd_direction) direction : 2;
94 . {* Format_specific flags. *}
95 . flagword flags : 20;
97 . {* Values that may appear in the flags field of a BFD. These also
98 . appear in the object_flags field of the bfd_target structure, where
99 . they indicate the set of flags used by that backend (not all flags
100 . are meaningful for all object file formats) (FIXME: at the moment,
101 . the object_flags values have mostly just been copied from backend
102 . to another, and are not necessarily correct). *}
104 .#define BFD_NO_FLAGS 0x0
106 . {* BFD contains relocation entries. *}
107 .#define HAS_RELOC 0x1
109 . {* BFD is directly executable. *}
112 . {* BFD has line number information (basically used for F_LNNO in a
114 .#define HAS_LINENO 0x4
116 . {* BFD has debugging information. *}
117 .#define HAS_DEBUG 0x08
119 . {* BFD has symbols. *}
120 .#define HAS_SYMS 0x10
122 . {* BFD has local symbols (basically used for F_LSYMS in a COFF
124 .#define HAS_LOCALS 0x20
126 . {* BFD is a dynamic object. *}
127 .#define DYNAMIC 0x40
129 . {* Text section is write protected (if D_PAGED is not set, this is
130 . like an a.out NMAGIC file) (the linker sets this by default, but
131 . clears it for -r or -N). *}
132 .#define WP_TEXT 0x80
134 . {* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the
135 . linker sets this by default, but clears it for -r or -n or -N). *}
136 .#define D_PAGED 0x100
138 . {* BFD is relaxable (this means that bfd_relax_section may be able to
139 . do something) (sometimes bfd_relax_section can do something even if
140 . this is not set). *}
141 .#define BFD_IS_RELAXABLE 0x200
143 . {* This may be set before writing out a BFD to request using a
144 . traditional format. For example, this is used to request that when
145 . writing out an a.out object the symbols not be hashed to eliminate
147 .#define BFD_TRADITIONAL_FORMAT 0x400
149 . {* This flag indicates that the BFD contents are actually cached
150 . in memory. If this is set, iostream points to a bfd_in_memory
152 .#define BFD_IN_MEMORY 0x800
154 . {* This BFD has been created by the linker and doesn't correspond
155 . to any input file. *}
156 .#define BFD_LINKER_CREATED 0x1000
158 . {* This may be set before writing out a BFD to request that it
159 . be written using values for UIDs, GIDs, timestamps, etc. that
160 . will be consistent from run to run. *}
161 .#define BFD_DETERMINISTIC_OUTPUT 0x2000
163 . {* Compress sections in this BFD. *}
164 .#define BFD_COMPRESS 0x4000
166 . {* Decompress sections in this BFD. *}
167 .#define BFD_DECOMPRESS 0x8000
169 . {* BFD is a dummy, for plugins. *}
170 .#define BFD_PLUGIN 0x10000
172 . {* Compress sections in this BFD with SHF_COMPRESSED from gABI. *}
173 .#define BFD_COMPRESS_GABI 0x20000
175 . {* Convert ELF common symbol type to STT_COMMON or STT_OBJECT in this
177 .#define BFD_CONVERT_ELF_COMMON 0x40000
179 . {* Use the ELF STT_COMMON type in this BFD. *}
180 .#define BFD_USE_ELF_STT_COMMON 0x80000
182 . {* Flags bits to be saved in bfd_preserve_save. *}
183 .#define BFD_FLAGS_SAVED \
184 . (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_LINKER_CREATED \
185 . | BFD_PLUGIN | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON \
186 . | BFD_USE_ELF_STT_COMMON)
188 . {* Flags bits which are for BFD use only. *}
189 .#define BFD_FLAGS_FOR_BFD_USE_MASK \
190 . (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_LINKER_CREATED \
191 . | BFD_PLUGIN | BFD_TRADITIONAL_FORMAT | BFD_DETERMINISTIC_OUTPUT \
192 . | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON)
194 . {* Is the file descriptor being cached? That is, can it be closed as
195 . needed, and re-opened when accessed later? *}
196 . unsigned int cacheable : 1;
198 . {* Marks whether there was a default target specified when the
199 . BFD was opened. This is used to select which matching algorithm
200 . to use to choose the back end. *}
201 . unsigned int target_defaulted : 1;
203 . {* ... and here: (``once'' means at least once). *}
204 . unsigned int opened_once : 1;
206 . {* Set if we have a locally maintained mtime value, rather than
207 . getting it from the file each time. *}
208 . unsigned int mtime_set : 1;
210 . {* Flag set if symbols from this BFD should not be exported. *}
211 . unsigned int no_export : 1;
213 . {* Remember when output has begun, to stop strange things
215 . unsigned int output_has_begun : 1;
217 . {* Have archive map. *}
218 . unsigned int has_armap : 1;
220 . {* Set if this is a thin archive. *}
221 . unsigned int is_thin_archive : 1;
223 . {* Set if this archive should not cache element positions. *}
224 . unsigned int no_element_cache : 1;
226 . {* Set if only required symbols should be added in the link hash table for
227 . this object. Used by VMS linkers. *}
228 . unsigned int selective_search : 1;
230 . {* Set if this is the linker output BFD. *}
231 . unsigned int is_linker_output : 1;
233 . {* Set if this is the linker input BFD. *}
234 . unsigned int is_linker_input : 1;
236 . {* If this is an input for a compiler plug-in library. *}
237 . ENUM_BITFIELD (bfd_plugin_format) plugin_format : 2;
239 . {* Set if this is a plugin output file. *}
240 . unsigned int lto_output : 1;
242 . {* Set if this is a slim LTO object not loaded with a compiler plugin. *}
243 . unsigned int lto_slim_object : 1;
245 . {* Set to dummy BFD created when claimed by a compiler plug-in
247 . bfd *plugin_dummy_bfd;
249 . {* Currently my_archive is tested before adding origin to
250 . anything. I believe that this can become always an add of
251 . origin, with origin set to 0 for non archive files. *}
254 . {* The origin in the archive of the proxy entry. This will
255 . normally be the same as origin, except for thin archives,
256 . when it will contain the current offset of the proxy in the
257 . thin archive rather than the offset of the bfd in its actual
259 . ufile_ptr proxy_origin;
261 . {* A hash table for section names. *}
262 . struct bfd_hash_table section_htab;
264 . {* Pointer to linked list of sections. *}
265 . struct bfd_section *sections;
267 . {* The last section on the section list. *}
268 . struct bfd_section *section_last;
270 . {* The number of sections. *}
271 . unsigned int section_count;
273 . {* A field used by _bfd_generic_link_add_archive_symbols. This will
274 . be used only for archive elements. *}
277 . {* Stuff only useful for object files:
278 . The start address. *}
279 . bfd_vma start_address;
281 . {* Symbol table for output BFD (with symcount entries).
282 . Also used by the linker to cache input BFD symbols. *}
283 . struct bfd_symbol **outsymbols;
285 . {* Used for input and output. *}
286 . unsigned int symcount;
288 . {* Used for slurped dynamic symbol tables. *}
289 . unsigned int dynsymcount;
291 . {* Pointer to structure which contains architecture information. *}
292 . const struct bfd_arch_info *arch_info;
294 . {* Stuff only useful for archives. *}
296 . struct bfd *my_archive; {* The containing archive BFD. *}
297 . struct bfd *archive_next; {* The next BFD in the archive. *}
298 . struct bfd *archive_head; {* The first BFD in the archive. *}
299 . struct bfd *nested_archives; {* List of nested archive in a flattened
303 . {* For input BFDs, a chain of BFDs involved in a link. *}
305 . {* For output BFD, the linker hash table. *}
306 . struct bfd_link_hash_table *hash;
309 . {* Used by the back end to hold private data. *}
312 . struct aout_data_struct *aout_data;
313 . struct artdata *aout_ar_data;
314 . struct coff_tdata *coff_obj_data;
315 . struct pe_tdata *pe_obj_data;
316 . struct xcoff_tdata *xcoff_obj_data;
317 . struct ecoff_tdata *ecoff_obj_data;
318 . struct srec_data_struct *srec_data;
319 . struct verilog_data_struct *verilog_data;
320 . struct ihex_data_struct *ihex_data;
321 . struct tekhex_data_struct *tekhex_data;
322 . struct elf_obj_tdata *elf_obj_data;
323 . struct mmo_data_struct *mmo_data;
324 . struct sun_core_struct *sun_core_data;
325 . struct sco5_core_struct *sco5_core_data;
326 . struct trad_core_struct *trad_core_data;
327 . struct som_data_struct *som_data;
328 . struct hpux_core_struct *hpux_core_data;
329 . struct hppabsd_core_struct *hppabsd_core_data;
330 . struct sgi_core_struct *sgi_core_data;
331 . struct lynx_core_struct *lynx_core_data;
332 . struct osf_core_struct *osf_core_data;
333 . struct cisco_core_struct *cisco_core_data;
334 . struct versados_data_struct *versados_data;
335 . struct netbsd_core_struct *netbsd_core_data;
336 . struct mach_o_data_struct *mach_o_data;
337 . struct mach_o_fat_data_struct *mach_o_fat_data;
338 . struct plugin_data_struct *plugin_data;
339 . struct bfd_pef_data_struct *pef_data;
340 . struct bfd_pef_xlib_data_struct *pef_xlib_data;
341 . struct bfd_sym_data_struct *sym_data;
346 . {* Used by the application to hold private data. *}
349 . {* Where all the allocated stuff under this BFD goes. This is a
350 . struct objalloc *, but we use void * to avoid requiring the inclusion
354 . {* For input BFDs, the build ID, if the object has one. *}
355 . const struct bfd_build_id *build_id;
358 .static inline const char *
359 .bfd_get_filename (const bfd *abfd)
361 . return abfd->filename;
364 .static inline bfd_boolean
365 .bfd_get_cacheable (const bfd *abfd)
367 . return abfd->cacheable;
370 .static inline enum bfd_format
371 .bfd_get_format (const bfd *abfd)
373 . return abfd->format;
376 .static inline flagword
377 .bfd_get_file_flags (const bfd *abfd)
379 . return abfd->flags;
382 .static inline bfd_vma
383 .bfd_get_start_address (const bfd *abfd)
385 . return abfd->start_address;
388 .static inline unsigned int
389 .bfd_get_symcount (const bfd *abfd)
391 . return abfd->symcount;
394 .static inline unsigned int
395 .bfd_get_dynamic_symcount (const bfd *abfd)
397 . return abfd->dynsymcount;
400 .static inline struct bfd_symbol **
401 .bfd_get_outsymbols (const bfd *abfd)
403 . return abfd->outsymbols;
406 .static inline unsigned int
407 .bfd_count_sections (const bfd *abfd)
409 . return abfd->section_count;
412 .static inline bfd_boolean
413 .bfd_has_map (const bfd *abfd)
415 . return abfd->has_armap;
418 .static inline bfd_boolean
419 .bfd_is_thin_archive (const bfd *abfd)
421 . return abfd->is_thin_archive;
424 .static inline void *
425 .bfd_usrdata (const bfd *abfd)
427 . return abfd->usrdata;
430 .{* See note beside bfd_set_section_userdata. *}
431 .static inline bfd_boolean
432 .bfd_set_cacheable (bfd * abfd, bfd_boolean val)
434 . abfd->cacheable = val;
439 .bfd_set_thin_archive (bfd *abfd, bfd_boolean val)
441 . abfd->is_thin_archive = val;
445 .bfd_set_usrdata (bfd *abfd, void *val)
447 . abfd->usrdata = val;
456 #include "libiberty.h"
457 #include "demangle.h"
458 #include "safe-ctype.h"
461 #include "coff/internal.h"
462 #include "coff/sym.h"
464 #include "libecoff.h"
469 #define EXIT_FAILURE 1
473 /* provide storage for subsystem, stack and heap data which may have been
474 passed in on the command line. Ld puts this data into a bfd_link_info
475 struct which ultimately gets passed in to the bfd. When it arrives, copy
476 it to the following struct so that the data will be available in coffcode.h
477 where it is needed. The typedef's used are defined in bfd.h */
481 Error reporting, Miscellaneous, typedef bfd, BFD front end
486 Most BFD functions return nonzero on success (check their
487 individual documentation for precise semantics). On an error,
488 they call <<bfd_set_error>> to set an error condition that callers
489 can check by calling <<bfd_get_error>>.
490 If that returns <<bfd_error_system_call>>, then check
493 The easiest way to report a BFD error to the user is to
497 Type <<bfd_error_type>>
499 The values returned by <<bfd_get_error>> are defined by the
500 enumerated type <<bfd_error_type>>.
504 .typedef enum bfd_error
506 . bfd_error_no_error = 0,
507 . bfd_error_system_call,
508 . bfd_error_invalid_target,
509 . bfd_error_wrong_format,
510 . bfd_error_wrong_object_format,
511 . bfd_error_invalid_operation,
512 . bfd_error_no_memory,
513 . bfd_error_no_symbols,
514 . bfd_error_no_armap,
515 . bfd_error_no_more_archived_files,
516 . bfd_error_malformed_archive,
517 . bfd_error_missing_dso,
518 . bfd_error_file_not_recognized,
519 . bfd_error_file_ambiguously_recognized,
520 . bfd_error_no_contents,
521 . bfd_error_nonrepresentable_section,
522 . bfd_error_no_debug_section,
523 . bfd_error_bad_value,
524 . bfd_error_file_truncated,
525 . bfd_error_file_too_big,
526 . bfd_error_on_input,
527 . bfd_error_invalid_error_code
533 static bfd_error_type bfd_error
= bfd_error_no_error
;
534 static bfd
*input_bfd
= NULL
;
535 static bfd_error_type input_error
= bfd_error_no_error
;
537 const char *const bfd_errmsgs
[] =
540 N_("system call error"),
541 N_("invalid bfd target"),
542 N_("file in wrong format"),
543 N_("archive object file in wrong format"),
544 N_("invalid operation"),
545 N_("memory exhausted"),
547 N_("archive has no index; run ranlib to add one"),
548 N_("no more archived files"),
549 N_("malformed archive"),
550 N_("DSO missing from command line"),
551 N_("file format not recognized"),
552 N_("file format is ambiguous"),
553 N_("section has no contents"),
554 N_("nonrepresentable section on output"),
555 N_("symbol needs debug section which does not exist"),
557 N_("file truncated"),
559 N_("error reading %s: %s"),
560 N_("#<invalid error code>")
568 bfd_error_type bfd_get_error (void);
571 Return the current BFD error condition.
585 void bfd_set_error (bfd_error_type error_tag);
588 Set the BFD error condition to be @var{error_tag}.
590 @var{error_tag} must not be bfd_error_on_input. Use
591 bfd_set_input_error for input errors instead.
595 bfd_set_error (bfd_error_type error_tag
)
597 bfd_error
= error_tag
;
598 if (bfd_error
>= bfd_error_on_input
)
607 void bfd_set_input_error (bfd *input, bfd_error_type error_tag);
611 Set the BFD error condition to be bfd_error_on_input.
612 @var{input} is the input bfd where the error occurred, and
613 @var{error_tag} the bfd_error_type error.
617 bfd_set_input_error (bfd
*input
, bfd_error_type error_tag
)
619 /* This is an error that occurred during bfd_close when writing an
620 archive, but on one of the input files. */
621 bfd_error
= bfd_error_on_input
;
623 input_error
= error_tag
;
624 if (input_error
>= bfd_error_on_input
)
633 const char *bfd_errmsg (bfd_error_type error_tag);
636 Return a string describing the error @var{error_tag}, or
637 the system error if @var{error_tag} is <<bfd_error_system_call>>.
641 bfd_errmsg (bfd_error_type error_tag
)
646 if (error_tag
== bfd_error_on_input
)
649 const char *msg
= bfd_errmsg (input_error
);
651 if (asprintf (&buf
, _(bfd_errmsgs
[error_tag
]), input_bfd
->filename
, msg
)
655 /* Ick, what to do on out of memory? */
659 if (error_tag
== bfd_error_system_call
)
660 return xstrerror (errno
);
662 if (error_tag
> bfd_error_invalid_error_code
)
663 error_tag
= bfd_error_invalid_error_code
; /* sanity check */
665 return _(bfd_errmsgs
[error_tag
]);
673 void bfd_perror (const char *message);
676 Print to the standard error stream a string describing the
677 last BFD error that occurred, or the last system error if
678 the last BFD error was a system call failure. If @var{message}
679 is non-NULL and non-empty, the error string printed is preceded
680 by @var{message}, a colon, and a space. It is followed by a newline.
684 bfd_perror (const char *message
)
687 if (message
== NULL
|| *message
== '\0')
688 fprintf (stderr
, "%s\n", bfd_errmsg (bfd_get_error ()));
690 fprintf (stderr
, "%s: %s\n", message
, bfd_errmsg (bfd_get_error ()));
698 Some BFD functions want to print messages describing the
699 problem. They call a BFD error handler function. This
700 function may be overridden by the program.
702 The BFD error handler acts like vprintf.
706 .typedef void (*bfd_error_handler_type) (const char *, va_list);
710 /* The program name used when printing BFD error messages. */
712 static const char *_bfd_error_program_name
;
714 /* Support for positional parameters. */
716 union _bfd_doprnt_args
736 /* This macro and _bfd_doprnt taken from libiberty _doprnt.c, tidied a
737 little and extended to handle '%pA', '%pB' and positional parameters. */
739 #define PRINT_TYPE(TYPE, FIELD) \
742 TYPE value = (TYPE) args[arg_no].FIELD; \
743 result = fprintf (stream, specifier, value); \
747 _bfd_doprnt (FILE *stream
, const char *format
, union _bfd_doprnt_args
*args
)
749 const char *ptr
= format
;
751 int total_printed
= 0;
752 unsigned int arg_count
= 0;
760 /* While we have regular characters, print them. */
761 char *end
= strchr (ptr
, '%');
763 result
= fprintf (stream
, "%.*s", (int) (end
- ptr
), ptr
);
765 result
= fprintf (stream
, "%s", ptr
);
768 else if (ptr
[1] == '%')
776 /* We have a format specifier! */
777 char *sptr
= specifier
;
778 int wide_width
= 0, short_width
= 0;
781 /* Copy the % and move forward. */
784 /* Check for a positional parameter. */
786 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
792 /* Move past flags. */
793 while (strchr ("-+ #0'I", *ptr
))
799 unsigned int arg_index
;
802 arg_index
= arg_count
;
803 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
805 arg_index
= *ptr
- '1';
808 value
= abs (args
[arg_index
].i
);
810 sptr
+= sprintf (sptr
, "%d", value
);
813 /* Handle explicit numeric value. */
814 while (ISDIGIT (*ptr
))
820 /* Copy and go past the period. */
825 unsigned int arg_index
;
828 arg_index
= arg_count
;
829 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
831 arg_index
= *ptr
- '1';
834 value
= abs (args
[arg_index
].i
);
836 sptr
+= sprintf (sptr
, "%d", value
);
839 /* Handle explicit numeric value. */
840 while (ISDIGIT (*ptr
))
843 while (strchr ("hlL", *ptr
))
862 /* Copy the type specifier, and NULL terminate. */
865 if ((int) arg_no
< 0)
878 /* Short values are promoted to int, so just copy it
879 as an int and trust the C library printf to cast it
880 to the right width. */
891 PRINT_TYPE (long, l
);
895 #if defined (__MSVCRT__)
902 #if defined (__GNUC__) || defined (HAVE_LONG_LONG)
903 PRINT_TYPE (long long, ll
);
905 /* Fake it and hope for the best. */
906 PRINT_TYPE (long, l
);
920 PRINT_TYPE (double, d
);
923 #if defined (__GNUC__) || defined (HAVE_LONG_DOUBLE)
924 PRINT_TYPE (long double, ld
);
926 /* Fake it and hope for the best. */
927 PRINT_TYPE (double, d
);
933 PRINT_TYPE (char *, p
);
940 const char *group
= NULL
;
941 struct coff_comdat_info
*ci
;
944 sec
= (asection
*) args
[arg_no
].p
;
946 /* Invoking %pA with a null section pointer is an
951 && bfd_get_flavour (abfd
) == bfd_target_elf_flavour
952 && elf_next_in_group (sec
) != NULL
953 && (sec
->flags
& SEC_GROUP
) == 0)
954 group
= elf_group_name (sec
);
955 else if (abfd
!= NULL
956 && bfd_get_flavour (abfd
) == bfd_target_coff_flavour
957 && (ci
= bfd_coff_get_comdat_section (sec
->owner
,
961 result
= fprintf (stream
, "%s[%s]", sec
->name
, group
);
963 result
= fprintf (stream
, "%s", sec
->name
);
965 else if (*ptr
== 'B')
970 abfd
= (bfd
*) args
[arg_no
].p
;
972 /* Invoking %pB with a null bfd pointer is an
975 else if (abfd
->my_archive
976 && !bfd_is_thin_archive (abfd
->my_archive
))
977 result
= fprintf (stream
, "%s(%s)",
978 abfd
->my_archive
->filename
,
981 result
= fprintf (stream
, "%s", abfd
->filename
);
984 PRINT_TYPE (void *, p
);
993 total_printed
+= result
;
996 return total_printed
;
999 /* First pass over FORMAT to gather ARGS. Returns number of args. */
1002 _bfd_doprnt_scan (const char *format
, union _bfd_doprnt_args
*args
)
1004 const char *ptr
= format
;
1005 unsigned int arg_count
= 0;
1007 while (*ptr
!= '\0')
1011 ptr
= strchr (ptr
, '%');
1015 else if (ptr
[1] == '%')
1019 int wide_width
= 0, short_width
= 0;
1020 unsigned int arg_no
;
1025 /* Check for a positional parameter. */
1027 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
1029 arg_no
= *ptr
- '1';
1033 /* Move past flags. */
1034 while (strchr ("-+ #0'I", *ptr
))
1039 unsigned int arg_index
;
1042 arg_index
= arg_count
;
1043 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
1045 arg_index
= *ptr
- '1';
1050 args
[arg_index
].type
= Int
;
1054 /* Handle explicit numeric value. */
1055 while (ISDIGIT (*ptr
))
1064 unsigned int arg_index
;
1067 arg_index
= arg_count
;
1068 if (*ptr
!= '0' && ISDIGIT (*ptr
) && ptr
[1] == '$')
1070 arg_index
= *ptr
- '1';
1075 args
[arg_index
].type
= Int
;
1079 /* Handle explicit numeric value. */
1080 while (ISDIGIT (*ptr
))
1083 while (strchr ("hlL", *ptr
))
1103 if ((int) arg_no
< 0)
1131 #if defined (__GNUC__) || defined (HAVE_LONG_LONG)
1132 arg_type
= LongLong
;
1147 if (wide_width
== 0)
1151 #if defined (__GNUC__) || defined (HAVE_LONG_DOUBLE)
1152 arg_type
= LongDouble
;
1163 if (*ptr
== 'A' || *ptr
== 'B')
1173 args
[arg_no
].type
= arg_type
;
1182 error_handler_internal (const char *fmt
, va_list ap
)
1184 unsigned int i
, arg_count
;
1185 union _bfd_doprnt_args args
[9];
1187 for (i
= 0; i
< sizeof (args
) / sizeof (args
[0]); i
++)
1190 arg_count
= _bfd_doprnt_scan (fmt
, args
);
1191 for (i
= 0; i
< arg_count
; i
++)
1193 switch (args
[i
].type
)
1196 args
[i
].i
= va_arg (ap
, int);
1199 args
[i
].l
= va_arg (ap
, long);
1202 args
[i
].ll
= va_arg (ap
, long long);
1205 args
[i
].d
= va_arg (ap
, double);
1208 args
[i
].ld
= va_arg (ap
, long double);
1211 args
[i
].p
= va_arg (ap
, void *);
1218 /* PR 4992: Don't interrupt output being sent to stdout. */
1221 if (_bfd_error_program_name
!= NULL
)
1222 fprintf (stderr
, "%s: ", _bfd_error_program_name
);
1224 fprintf (stderr
, "BFD: ");
1226 _bfd_doprnt (stderr
, fmt
, args
);
1228 /* On AIX, putc is implemented as a macro that triggers a -Wunused-value
1229 warning, so use the fputc function to avoid it. */
1230 fputc ('\n', stderr
);
1234 /* This is a function pointer to the routine which should handle BFD
1235 error messages. It is called when a BFD routine encounters an
1236 error for which it wants to print a message. Going through a
1237 function pointer permits a program linked against BFD to intercept
1238 the messages and deal with them itself. */
1240 static bfd_error_handler_type _bfd_error_internal
= error_handler_internal
;
1247 void _bfd_error_handler (const char *fmt, ...) ATTRIBUTE_PRINTF_1;
1250 This is the default routine to handle BFD error messages.
1251 Like fprintf (stderr, ...), but also handles some extra format
1254 %pA section name from section. For group components, prints
1256 %pB file name from bfd. For archive components, prints
1259 Beware: Only supports a maximum of 9 format arguments.
1263 _bfd_error_handler (const char *fmt
, ...)
1268 _bfd_error_internal (fmt
, ap
);
1274 bfd_set_error_handler
1277 bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type);
1280 Set the BFD error handler function. Returns the previous
1284 bfd_error_handler_type
1285 bfd_set_error_handler (bfd_error_handler_type pnew
)
1287 bfd_error_handler_type pold
;
1289 pold
= _bfd_error_internal
;
1290 _bfd_error_internal
= pnew
;
1296 bfd_set_error_program_name
1299 void bfd_set_error_program_name (const char *);
1302 Set the program name to use when printing a BFD error. This
1303 is printed before the error message followed by a colon and
1304 space. The string must not be changed after it is passed to
1309 bfd_set_error_program_name (const char *name
)
1311 _bfd_error_program_name
= name
;
1318 If BFD finds an internal inconsistency, the bfd assert
1319 handler is called with information on the BFD version, BFD
1320 source file and line. If this happens, most programs linked
1321 against BFD are expected to want to exit with an error, or mark
1322 the current BFD operation as failed, so it is recommended to
1323 override the default handler, which just calls
1324 _bfd_error_handler and continues.
1328 .typedef void (*bfd_assert_handler_type) (const char *bfd_formatmsg,
1329 . const char *bfd_version,
1330 . const char *bfd_file,
1335 /* Note the use of bfd_ prefix on the parameter names above: we want to
1336 show which one is the message and which is the version by naming the
1337 parameters, but avoid polluting the program-using-bfd namespace as
1338 the typedef is visible in the exported headers that the program
1339 includes. Below, it's just for consistency. */
1342 _bfd_default_assert_handler (const char *bfd_formatmsg
,
1343 const char *bfd_version
,
1344 const char *bfd_file
,
1348 _bfd_error_handler (bfd_formatmsg
, bfd_version
, bfd_file
, bfd_line
);
1351 /* Similar to _bfd_error_handler, a program can decide to exit on an
1352 internal BFD error. We use a non-variadic type to simplify passing
1353 on parameters to other functions, e.g. _bfd_error_handler. */
1355 static bfd_assert_handler_type _bfd_assert_handler
= _bfd_default_assert_handler
;
1359 bfd_set_assert_handler
1362 bfd_assert_handler_type bfd_set_assert_handler (bfd_assert_handler_type);
1365 Set the BFD assert handler function. Returns the previous
1369 bfd_assert_handler_type
1370 bfd_set_assert_handler (bfd_assert_handler_type pnew
)
1372 bfd_assert_handler_type pold
;
1374 pold
= _bfd_assert_handler
;
1375 _bfd_assert_handler
= pnew
;
1381 Miscellaneous, Memory Usage, Error reporting, BFD front end
1387 Miscellaneous functions
1392 bfd_get_reloc_upper_bound
1395 long bfd_get_reloc_upper_bound (bfd *abfd, asection *sect);
1398 Return the number of bytes required to store the
1399 relocation information associated with section @var{sect}
1400 attached to bfd @var{abfd}. If an error occurs, return -1.
1405 bfd_get_reloc_upper_bound (bfd
*abfd
, sec_ptr asect
)
1407 if (abfd
->format
!= bfd_object
)
1409 bfd_set_error (bfd_error_invalid_operation
);
1413 return BFD_SEND (abfd
, _get_reloc_upper_bound
, (abfd
, asect
));
1418 bfd_canonicalize_reloc
1421 long bfd_canonicalize_reloc
1422 (bfd *abfd, asection *sec, arelent **loc, asymbol **syms);
1425 Call the back end associated with the open BFD
1426 @var{abfd} and translate the external form of the relocation
1427 information attached to @var{sec} into the internal canonical
1428 form. Place the table into memory at @var{loc}, which has
1429 been preallocated, usually by a call to
1430 <<bfd_get_reloc_upper_bound>>. Returns the number of relocs, or
1433 The @var{syms} table is also needed for horrible internal magic
1438 bfd_canonicalize_reloc (bfd
*abfd
,
1443 if (abfd
->format
!= bfd_object
)
1445 bfd_set_error (bfd_error_invalid_operation
);
1449 return BFD_SEND (abfd
, _bfd_canonicalize_reloc
,
1450 (abfd
, asect
, location
, symbols
));
1459 (bfd *abfd, asection *sec, arelent **rel, unsigned int count);
1462 Set the relocation pointer and count within
1463 section @var{sec} to the values @var{rel} and @var{count}.
1464 The argument @var{abfd} is ignored.
1466 .#define bfd_set_reloc(abfd, asect, location, count) \
1467 . BFD_SEND (abfd, _bfd_set_reloc, (abfd, asect, location, count))
1475 bfd_boolean bfd_set_file_flags (bfd *abfd, flagword flags);
1478 Set the flag word in the BFD @var{abfd} to the value @var{flags}.
1480 Possible errors are:
1481 o <<bfd_error_wrong_format>> - The target bfd was not of object format.
1482 o <<bfd_error_invalid_operation>> - The target bfd was open for reading.
1483 o <<bfd_error_invalid_operation>> -
1484 The flag word contained a bit which was not applicable to the
1485 type of file. E.g., an attempt was made to set the <<D_PAGED>> bit
1486 on a BFD format which does not support demand paging.
1491 bfd_set_file_flags (bfd
*abfd
, flagword flags
)
1493 if (abfd
->format
!= bfd_object
)
1495 bfd_set_error (bfd_error_wrong_format
);
1499 if (bfd_read_p (abfd
))
1501 bfd_set_error (bfd_error_invalid_operation
);
1505 abfd
->flags
= flags
;
1506 if ((flags
& bfd_applicable_file_flags (abfd
)) != flags
)
1508 bfd_set_error (bfd_error_invalid_operation
);
1516 bfd_assert (const char *file
, int line
)
1518 /* xgettext:c-format */
1519 (*_bfd_assert_handler
) (_("BFD %s assertion fail %s:%d"),
1520 BFD_VERSION_STRING
, file
, line
);
1523 /* A more or less friendly abort message. In libbfd.h abort is
1524 defined to call this function. */
1527 _bfd_abort (const char *file
, int line
, const char *fn
)
1531 /* xgettext:c-format */
1532 (_("BFD %s internal error, aborting at %s:%d in %s\n"),
1533 BFD_VERSION_STRING
, file
, line
, fn
);
1536 /* xgettext:c-format */
1537 (_("BFD %s internal error, aborting at %s:%d\n"),
1538 BFD_VERSION_STRING
, file
, line
);
1539 _bfd_error_handler (_("Please report this bug.\n"));
1540 _exit (EXIT_FAILURE
);
1548 int bfd_get_arch_size (bfd *abfd);
1551 Returns the normalized architecture address size, in bits, as
1552 determined by the object file's format. By normalized, we mean
1553 either 32 or 64. For ELF, this information is included in the
1554 header. Use bfd_arch_bits_per_address for number of bits in
1555 the architecture address.
1558 Returns the arch size in bits if known, <<-1>> otherwise.
1562 bfd_get_arch_size (bfd
*abfd
)
1564 if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1565 return get_elf_backend_data (abfd
)->s
->arch_size
;
1567 return bfd_arch_bits_per_address (abfd
) > 32 ? 64 : 32;
1572 bfd_get_sign_extend_vma
1575 int bfd_get_sign_extend_vma (bfd *abfd);
1578 Indicates if the target architecture "naturally" sign extends
1579 an address. Some architectures implicitly sign extend address
1580 values when they are converted to types larger than the size
1581 of an address. For instance, bfd_get_start_address() will
1582 return an address sign extended to fill a bfd_vma when this is
1586 Returns <<1>> if the target architecture is known to sign
1587 extend addresses, <<0>> if the target architecture is known to
1588 not sign extend addresses, and <<-1>> otherwise.
1592 bfd_get_sign_extend_vma (bfd
*abfd
)
1596 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
1597 return get_elf_backend_data (abfd
)->sign_extend_vma
;
1599 name
= bfd_get_target (abfd
);
1601 /* Return a proper value for DJGPP & PE COFF.
1602 This function is required for DWARF2 support, but there is
1603 no place to store this information in the COFF back end.
1604 Should enough other COFF targets add support for DWARF2,
1605 a place will have to be found. Until then, this hack will do. */
1606 if (CONST_STRNEQ (name
, "coff-go32")
1607 || strcmp (name
, "pe-i386") == 0
1608 || strcmp (name
, "pei-i386") == 0
1609 || strcmp (name
, "pe-x86-64") == 0
1610 || strcmp (name
, "pei-x86-64") == 0
1611 || strcmp (name
, "pe-arm-wince-little") == 0
1612 || strcmp (name
, "pei-arm-wince-little") == 0
1613 || strcmp (name
, "aixcoff-rs6000") == 0
1614 || strcmp (name
, "aix5coff64-rs6000") == 0)
1617 if (CONST_STRNEQ (name
, "mach-o"))
1620 bfd_set_error (bfd_error_wrong_format
);
1626 bfd_set_start_address
1629 bfd_boolean bfd_set_start_address (bfd *abfd, bfd_vma vma);
1632 Make @var{vma} the entry point of output BFD @var{abfd}.
1635 Returns <<TRUE>> on success, <<FALSE>> otherwise.
1639 bfd_set_start_address (bfd
*abfd
, bfd_vma vma
)
1641 abfd
->start_address
= vma
;
1650 unsigned int bfd_get_gp_size (bfd *abfd);
1653 Return the maximum size of objects to be optimized using the GP
1654 register under MIPS ECOFF. This is typically set by the <<-G>>
1655 argument to the compiler, assembler or linker.
1659 bfd_get_gp_size (bfd
*abfd
)
1661 if (abfd
->format
== bfd_object
)
1663 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1664 return ecoff_data (abfd
)->gp_size
;
1665 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1666 return elf_gp_size (abfd
);
1676 void bfd_set_gp_size (bfd *abfd, unsigned int i);
1679 Set the maximum size of objects to be optimized using the GP
1680 register under ECOFF or MIPS ELF. This is typically set by
1681 the <<-G>> argument to the compiler, assembler or linker.
1685 bfd_set_gp_size (bfd
*abfd
, unsigned int i
)
1687 /* Don't try to set GP size on an archive or core file! */
1688 if (abfd
->format
!= bfd_object
)
1691 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1692 ecoff_data (abfd
)->gp_size
= i
;
1693 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1694 elf_gp_size (abfd
) = i
;
1697 /* Get the GP value. This is an internal function used by some of the
1698 relocation special_function routines on targets which support a GP
1702 _bfd_get_gp_value (bfd
*abfd
)
1706 if (abfd
->format
!= bfd_object
)
1709 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1710 return ecoff_data (abfd
)->gp
;
1711 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1712 return elf_gp (abfd
);
1717 /* Set the GP value. */
1720 _bfd_set_gp_value (bfd
*abfd
, bfd_vma v
)
1724 if (abfd
->format
!= bfd_object
)
1727 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1728 ecoff_data (abfd
)->gp
= v
;
1729 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1738 bfd_vma bfd_scan_vma (const char *string, const char **end, int base);
1741 Convert, like <<strtoul>>, a numerical expression
1742 @var{string} into a <<bfd_vma>> integer, and return that integer.
1743 (Though without as many bells and whistles as <<strtoul>>.)
1744 The expression is assumed to be unsigned (i.e., positive).
1745 If given a @var{base}, it is used as the base for conversion.
1746 A base of 0 causes the function to interpret the string
1747 in hex if a leading "0x" or "0X" is found, otherwise
1748 in octal if a leading zero is found, otherwise in decimal.
1750 If the value would overflow, the maximum <<bfd_vma>> value is
1755 bfd_scan_vma (const char *string
, const char **end
, int base
)
1759 unsigned int cutlim
;
1762 /* Let the host do it if possible. */
1763 if (sizeof (bfd_vma
) <= sizeof (unsigned long))
1764 return strtoul (string
, (char **) end
, base
);
1766 #if defined (HAVE_STRTOULL) && defined (HAVE_LONG_LONG)
1767 if (sizeof (bfd_vma
) <= sizeof (unsigned long long))
1768 return strtoull (string
, (char **) end
, base
);
1773 if (string
[0] == '0')
1775 if ((string
[1] == 'x') || (string
[1] == 'X'))
1782 if ((base
< 2) || (base
> 36))
1787 && (string
[1] == 'x' || string
[1] == 'X')
1788 && ISXDIGIT (string
[2]))
1793 cutoff
= (~ (bfd_vma
) 0) / (bfd_vma
) base
;
1794 cutlim
= (~ (bfd_vma
) 0) % (bfd_vma
) base
;
1802 if (ISDIGIT (digit
))
1803 digit
= digit
- '0';
1804 else if (ISALPHA (digit
))
1805 digit
= TOUPPER (digit
) - 'A' + 10;
1808 if (digit
>= (unsigned int) base
)
1810 if (value
> cutoff
|| (value
== cutoff
&& digit
> cutlim
))
1812 value
= value
* base
+ digit
;
1817 value
= ~ (bfd_vma
) 0;
1827 bfd_copy_private_header_data
1830 bfd_boolean bfd_copy_private_header_data (bfd *ibfd, bfd *obfd);
1833 Copy private BFD header information from the BFD @var{ibfd} to the
1834 the BFD @var{obfd}. This copies information that may require
1835 sections to exist, but does not require symbol tables. Return
1836 <<true>> on success, <<false>> on error.
1837 Possible error returns are:
1839 o <<bfd_error_no_memory>> -
1840 Not enough memory exists to create private data for @var{obfd}.
1842 .#define bfd_copy_private_header_data(ibfd, obfd) \
1843 . BFD_SEND (obfd, _bfd_copy_private_header_data, \
1850 bfd_copy_private_bfd_data
1853 bfd_boolean bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd);
1856 Copy private BFD information from the BFD @var{ibfd} to the
1857 the BFD @var{obfd}. Return <<TRUE>> on success, <<FALSE>> on error.
1858 Possible error returns are:
1860 o <<bfd_error_no_memory>> -
1861 Not enough memory exists to create private data for @var{obfd}.
1863 .#define bfd_copy_private_bfd_data(ibfd, obfd) \
1864 . BFD_SEND (obfd, _bfd_copy_private_bfd_data, \
1871 bfd_set_private_flags
1874 bfd_boolean bfd_set_private_flags (bfd *abfd, flagword flags);
1877 Set private BFD flag information in the BFD @var{abfd}.
1878 Return <<TRUE>> on success, <<FALSE>> on error. Possible error
1881 o <<bfd_error_no_memory>> -
1882 Not enough memory exists to create private data for @var{obfd}.
1884 .#define bfd_set_private_flags(abfd, flags) \
1885 . BFD_SEND (abfd, _bfd_set_private_flags, (abfd, flags))
1894 The following functions exist but have not yet been documented.
1896 .#define bfd_sizeof_headers(abfd, info) \
1897 . BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, info))
1899 .#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
1900 . BFD_SEND (abfd, _bfd_find_nearest_line, \
1901 . (abfd, syms, sec, off, file, func, line, NULL))
1903 .#define bfd_find_nearest_line_discriminator(abfd, sec, syms, off, file, func, \
1905 . BFD_SEND (abfd, _bfd_find_nearest_line, \
1906 . (abfd, syms, sec, off, file, func, line, disc))
1908 .#define bfd_find_line(abfd, syms, sym, file, line) \
1909 . BFD_SEND (abfd, _bfd_find_line, \
1910 . (abfd, syms, sym, file, line))
1912 .#define bfd_find_inliner_info(abfd, file, func, line) \
1913 . BFD_SEND (abfd, _bfd_find_inliner_info, \
1914 . (abfd, file, func, line))
1916 .#define bfd_debug_info_start(abfd) \
1917 . BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
1919 .#define bfd_debug_info_end(abfd) \
1920 . BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
1922 .#define bfd_debug_info_accumulate(abfd, section) \
1923 . BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
1925 .#define bfd_stat_arch_elt(abfd, stat) \
1926 . BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
1928 .#define bfd_update_armap_timestamp(abfd) \
1929 . BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))
1931 .#define bfd_set_arch_mach(abfd, arch, mach)\
1932 . BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
1934 .#define bfd_relax_section(abfd, section, link_info, again) \
1935 . BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
1937 .#define bfd_gc_sections(abfd, link_info) \
1938 . BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info))
1940 .#define bfd_lookup_section_flags(link_info, flag_info, section) \
1941 . BFD_SEND (abfd, _bfd_lookup_section_flags, (link_info, flag_info, section))
1943 .#define bfd_merge_sections(abfd, link_info) \
1944 . BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info))
1946 .#define bfd_is_group_section(abfd, sec) \
1947 . BFD_SEND (abfd, _bfd_is_group_section, (abfd, sec))
1949 .#define bfd_group_name(abfd, sec) \
1950 . BFD_SEND (abfd, _bfd_group_name, (abfd, sec))
1952 .#define bfd_discard_group(abfd, sec) \
1953 . BFD_SEND (abfd, _bfd_discard_group, (abfd, sec))
1955 .#define bfd_link_hash_table_create(abfd) \
1956 . BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
1958 .#define bfd_link_add_symbols(abfd, info) \
1959 . BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
1961 .#define bfd_link_just_syms(abfd, sec, info) \
1962 . BFD_SEND (abfd, _bfd_link_just_syms, (sec, info))
1964 .#define bfd_final_link(abfd, info) \
1965 . BFD_SEND (abfd, _bfd_final_link, (abfd, info))
1967 .#define bfd_free_cached_info(abfd) \
1968 . BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
1970 .#define bfd_get_dynamic_symtab_upper_bound(abfd) \
1971 . BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
1973 .#define bfd_print_private_bfd_data(abfd, file)\
1974 . BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file))
1976 .#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
1977 . BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
1979 .#define bfd_get_synthetic_symtab(abfd, count, syms, dyncount, dynsyms, ret) \
1980 . BFD_SEND (abfd, _bfd_get_synthetic_symtab, (abfd, count, syms, \
1981 . dyncount, dynsyms, ret))
1983 .#define bfd_get_dynamic_reloc_upper_bound(abfd) \
1984 . BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
1986 .#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
1987 . BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
1989 .extern bfd_byte *bfd_get_relocated_section_contents
1990 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *,
1991 . bfd_boolean, asymbol **);
1997 bfd_get_relocated_section_contents (bfd
*abfd
,
1998 struct bfd_link_info
*link_info
,
1999 struct bfd_link_order
*link_order
,
2001 bfd_boolean relocatable
,
2005 bfd_byte
*(*fn
) (bfd
*, struct bfd_link_info
*, struct bfd_link_order
*,
2006 bfd_byte
*, bfd_boolean
, asymbol
**);
2008 if (link_order
->type
== bfd_indirect_link_order
)
2010 abfd2
= link_order
->u
.indirect
.section
->owner
;
2017 fn
= abfd2
->xvec
->_bfd_get_relocated_section_contents
;
2019 return (*fn
) (abfd
, link_info
, link_order
, data
, relocatable
, symbols
);
2022 /* Record information about an ELF program header. */
2025 bfd_record_phdr (bfd
*abfd
,
2027 bfd_boolean flags_valid
,
2029 bfd_boolean at_valid
,
2031 bfd_boolean includes_filehdr
,
2032 bfd_boolean includes_phdrs
,
2036 struct elf_segment_map
*m
, **pm
;
2039 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
2042 amt
= sizeof (struct elf_segment_map
);
2043 amt
+= ((bfd_size_type
) count
- 1) * sizeof (asection
*);
2044 m
= (struct elf_segment_map
*) bfd_zalloc (abfd
, amt
);
2051 m
->p_flags_valid
= flags_valid
;
2052 m
->p_paddr_valid
= at_valid
;
2053 m
->includes_filehdr
= includes_filehdr
;
2054 m
->includes_phdrs
= includes_phdrs
;
2057 memcpy (m
->sections
, secs
, count
* sizeof (asection
*));
2059 for (pm
= &elf_seg_map (abfd
); *pm
!= NULL
; pm
= &(*pm
)->next
)
2067 /* Return true iff this target is 32-bit. */
2072 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
2074 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
2075 return bed
->s
->elfclass
== ELFCLASS32
;
2078 /* For non-ELF targets, use architecture information. */
2079 return bfd_arch_bits_per_address (abfd
) <= 32;
2083 /* bfd_sprintf_vma and bfd_fprintf_vma display an address in the
2084 target's address size. */
2087 bfd_sprintf_vma (bfd
*abfd ATTRIBUTE_UNUSED
, char *buf
, bfd_vma value
)
2092 sprintf (buf
, "%08lx", (unsigned long) value
& 0xffffffff);
2096 sprintf_vma (buf
, value
);
2100 bfd_fprintf_vma (bfd
*abfd ATTRIBUTE_UNUSED
, void *stream
, bfd_vma value
)
2105 fprintf ((FILE *) stream
, "%08lx", (unsigned long) value
& 0xffffffff);
2109 fprintf_vma ((FILE *) stream
, value
);
2117 bfd_boolean bfd_alt_mach_code (bfd *abfd, int alternative);
2121 When more than one machine code number is available for the
2122 same machine type, this function can be used to switch between
2123 the preferred one (alternative == 0) and any others. Currently,
2124 only ELF supports this feature, with up to two alternate
2129 bfd_alt_mach_code (bfd
*abfd
, int alternative
)
2131 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
2135 switch (alternative
)
2138 code
= get_elf_backend_data (abfd
)->elf_machine_code
;
2142 code
= get_elf_backend_data (abfd
)->elf_machine_alt1
;
2148 code
= get_elf_backend_data (abfd
)->elf_machine_alt2
;
2157 elf_elfheader (abfd
)->e_machine
= code
;
2167 bfd_emul_get_maxpagesize
2170 bfd_vma bfd_emul_get_maxpagesize (const char *);
2173 Returns the maximum page size, in bytes, as determined by
2177 Returns the maximum page size in bytes for ELF, 0 otherwise.
2181 bfd_emul_get_maxpagesize (const char *emul
)
2183 const bfd_target
*target
;
2185 target
= bfd_find_target (emul
, NULL
);
2187 && target
->flavour
== bfd_target_elf_flavour
)
2188 return xvec_get_elf_backend_data (target
)->maxpagesize
;
2194 bfd_elf_set_pagesize (const bfd_target
*target
, bfd_vma size
,
2195 int offset
, const bfd_target
*orig_target
)
2197 if (target
->flavour
== bfd_target_elf_flavour
)
2199 const struct elf_backend_data
*bed
;
2201 bed
= xvec_get_elf_backend_data (target
);
2202 *((bfd_vma
*) ((char *) bed
+ offset
)) = size
;
2205 if (target
->alternative_target
2206 && target
->alternative_target
!= orig_target
)
2207 bfd_elf_set_pagesize (target
->alternative_target
, size
, offset
,
2213 bfd_emul_set_maxpagesize
2216 void bfd_emul_set_maxpagesize (const char *, bfd_vma);
2219 For ELF, set the maximum page size for the emulation. It is
2220 a no-op for other formats.
2225 bfd_emul_set_maxpagesize (const char *emul
, bfd_vma size
)
2227 const bfd_target
*target
;
2229 target
= bfd_find_target (emul
, NULL
);
2231 bfd_elf_set_pagesize (target
, size
,
2232 offsetof (struct elf_backend_data
,
2233 maxpagesize
), target
);
2238 bfd_emul_get_commonpagesize
2241 bfd_vma bfd_emul_get_commonpagesize (const char *, bfd_boolean);
2244 Returns the common page size, in bytes, as determined by
2248 Returns the common page size in bytes for ELF, 0 otherwise.
2252 bfd_emul_get_commonpagesize (const char *emul
, bfd_boolean relro
)
2254 const bfd_target
*target
;
2256 target
= bfd_find_target (emul
, NULL
);
2258 && target
->flavour
== bfd_target_elf_flavour
)
2260 const struct elf_backend_data
*bed
;
2262 bed
= xvec_get_elf_backend_data (target
);
2264 return bed
->relropagesize
;
2266 return bed
->commonpagesize
;
2273 bfd_emul_set_commonpagesize
2276 void bfd_emul_set_commonpagesize (const char *, bfd_vma);
2279 For ELF, set the common page size for the emulation. It is
2280 a no-op for other formats.
2285 bfd_emul_set_commonpagesize (const char *emul
, bfd_vma size
)
2287 const bfd_target
*target
;
2289 target
= bfd_find_target (emul
, NULL
);
2291 bfd_elf_set_pagesize (target
, size
,
2292 offsetof (struct elf_backend_data
,
2293 commonpagesize
), target
);
2301 char *bfd_demangle (bfd *, const char *, int);
2304 Wrapper around cplus_demangle. Strips leading underscores and
2305 other such chars that would otherwise confuse the demangler.
2306 If passed a g++ v3 ABI mangled name, returns a buffer allocated
2307 with malloc holding the demangled name. Returns NULL otherwise
2308 and on memory alloc failure.
2312 bfd_demangle (bfd
*abfd
, const char *name
, int options
)
2315 const char *pre
, *suf
;
2317 bfd_boolean skip_lead
;
2319 skip_lead
= (abfd
!= NULL
2321 && bfd_get_symbol_leading_char (abfd
) == *name
);
2325 /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF
2326 or the MS PE format. These formats have a number of leading '.'s
2327 on at least some symbols, so we remove all dots to avoid
2328 confusing the demangler. */
2330 while (*name
== '.' || *name
== '$')
2332 pre_len
= name
- pre
;
2334 /* Strip off @plt and suchlike too. */
2336 suf
= strchr (name
, '@');
2339 alloc
= (char *) bfd_malloc (suf
- name
+ 1);
2342 memcpy (alloc
, name
, suf
- name
);
2343 alloc
[suf
- name
] = '\0';
2347 res
= cplus_demangle (name
, options
);
2356 size_t len
= strlen (pre
) + 1;
2357 alloc
= (char *) bfd_malloc (len
);
2360 memcpy (alloc
, pre
, len
);
2366 /* Put back any prefix or suffix. */
2367 if (pre_len
!= 0 || suf
!= NULL
)
2376 suf_len
= strlen (suf
) + 1;
2377 final
= (char *) bfd_malloc (pre_len
+ len
+ suf_len
);
2380 memcpy (final
, pre
, pre_len
);
2381 memcpy (final
+ pre_len
, res
, len
);
2382 memcpy (final
+ pre_len
+ len
, suf
, suf_len
);
2393 bfd_update_compression_header
2396 void bfd_update_compression_header
2397 (bfd *abfd, bfd_byte *contents, asection *sec);
2400 Set the compression header at CONTENTS of SEC in ABFD and update
2401 elf_section_flags for compression.
2405 bfd_update_compression_header (bfd
*abfd
, bfd_byte
*contents
,
2408 if ((abfd
->flags
& BFD_COMPRESS
) != 0)
2410 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
2412 if ((abfd
->flags
& BFD_COMPRESS_GABI
) != 0)
2414 const struct elf_backend_data
*bed
2415 = get_elf_backend_data (abfd
);
2417 /* Set the SHF_COMPRESSED bit. */
2418 elf_section_flags (sec
) |= SHF_COMPRESSED
;
2420 if (bed
->s
->elfclass
== ELFCLASS32
)
2422 Elf32_External_Chdr
*echdr
2423 = (Elf32_External_Chdr
*) contents
;
2424 bfd_put_32 (abfd
, ELFCOMPRESS_ZLIB
, &echdr
->ch_type
);
2425 bfd_put_32 (abfd
, sec
->size
, &echdr
->ch_size
);
2426 bfd_put_32 (abfd
, 1 << sec
->alignment_power
,
2427 &echdr
->ch_addralign
);
2428 /* bfd_log2 (alignof (Elf32_Chdr)) */
2429 bfd_set_section_alignment (sec
, 2);
2433 Elf64_External_Chdr
*echdr
2434 = (Elf64_External_Chdr
*) contents
;
2435 bfd_put_32 (abfd
, ELFCOMPRESS_ZLIB
, &echdr
->ch_type
);
2436 bfd_put_32 (abfd
, 0, &echdr
->ch_reserved
);
2437 bfd_put_64 (abfd
, sec
->size
, &echdr
->ch_size
);
2438 bfd_put_64 (abfd
, 1 << sec
->alignment_power
,
2439 &echdr
->ch_addralign
);
2440 /* bfd_log2 (alignof (Elf64_Chdr)) */
2441 bfd_set_section_alignment (sec
, 3);
2446 /* Clear the SHF_COMPRESSED bit. */
2447 elf_section_flags (sec
) &= ~SHF_COMPRESSED
;
2449 /* Write the zlib header. It should be "ZLIB" followed by
2450 the uncompressed section size, 8 bytes in big-endian
2452 memcpy (contents
, "ZLIB", 4);
2453 bfd_putb64 (sec
->size
, contents
+ 4);
2454 /* No way to keep the original alignment, just use 1 always. */
2455 bfd_set_section_alignment (sec
, 0);
2465 bfd_check_compression_header
2468 bfd_boolean bfd_check_compression_header
2469 (bfd *abfd, bfd_byte *contents, asection *sec,
2470 bfd_size_type *uncompressed_size,
2471 unsigned int *uncompressed_alignment_power);
2474 Check the compression header at CONTENTS of SEC in ABFD and
2475 store the uncompressed size in UNCOMPRESSED_SIZE and the
2476 uncompressed data alignment in UNCOMPRESSED_ALIGNMENT_POWER
2477 if the compression header is valid.
2480 Return TRUE if the compression header is valid.
2484 bfd_check_compression_header (bfd
*abfd
, bfd_byte
*contents
,
2486 bfd_size_type
*uncompressed_size
,
2487 unsigned int *uncompressed_alignment_power
)
2489 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
2490 && (elf_section_flags (sec
) & SHF_COMPRESSED
) != 0)
2492 Elf_Internal_Chdr chdr
;
2493 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
2494 if (bed
->s
->elfclass
== ELFCLASS32
)
2496 Elf32_External_Chdr
*echdr
= (Elf32_External_Chdr
*) contents
;
2497 chdr
.ch_type
= bfd_get_32 (abfd
, &echdr
->ch_type
);
2498 chdr
.ch_size
= bfd_get_32 (abfd
, &echdr
->ch_size
);
2499 chdr
.ch_addralign
= bfd_get_32 (abfd
, &echdr
->ch_addralign
);
2503 Elf64_External_Chdr
*echdr
= (Elf64_External_Chdr
*) contents
;
2504 chdr
.ch_type
= bfd_get_32 (abfd
, &echdr
->ch_type
);
2505 chdr
.ch_size
= bfd_get_64 (abfd
, &echdr
->ch_size
);
2506 chdr
.ch_addralign
= bfd_get_64 (abfd
, &echdr
->ch_addralign
);
2508 if (chdr
.ch_type
== ELFCOMPRESS_ZLIB
2509 && chdr
.ch_addralign
== (1U << bfd_log2 (chdr
.ch_addralign
)))
2511 *uncompressed_size
= chdr
.ch_size
;
2512 *uncompressed_alignment_power
= bfd_log2 (chdr
.ch_addralign
);
2522 bfd_get_compression_header_size
2525 int bfd_get_compression_header_size (bfd *abfd, asection *sec);
2528 Return the size of the compression header of SEC in ABFD.
2531 Return the size of the compression header in bytes.
2535 bfd_get_compression_header_size (bfd
*abfd
, asection
*sec
)
2537 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
2541 if (!(abfd
->flags
& BFD_COMPRESS_GABI
))
2544 else if (!(elf_section_flags (sec
) & SHF_COMPRESSED
))
2547 if (get_elf_backend_data (abfd
)->s
->elfclass
== ELFCLASS32
)
2548 return sizeof (Elf32_External_Chdr
);
2550 return sizeof (Elf64_External_Chdr
);
2558 bfd_convert_section_size
2561 bfd_size_type bfd_convert_section_size
2562 (bfd *ibfd, asection *isec, bfd *obfd, bfd_size_type size);
2565 Convert the size @var{size} of the section @var{isec} in input
2566 BFD @var{ibfd} to the section size in output BFD @var{obfd}.
2570 bfd_convert_section_size (bfd
*ibfd
, sec_ptr isec
, bfd
*obfd
,
2573 bfd_size_type hdr_size
;
2575 /* Do nothing if either input or output aren't ELF. */
2576 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2577 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
2580 /* Do nothing if ELF classes of input and output are the same. */
2581 if (get_elf_backend_data (ibfd
)->s
->elfclass
2582 == get_elf_backend_data (obfd
)->s
->elfclass
)
2585 /* Convert GNU property size. */
2586 if (CONST_STRNEQ (isec
->name
, NOTE_GNU_PROPERTY_SECTION_NAME
))
2587 return _bfd_elf_convert_gnu_property_size (ibfd
, obfd
);
2589 /* Do nothing if input file will be decompressed. */
2590 if ((ibfd
->flags
& BFD_DECOMPRESS
))
2593 /* Do nothing if the input section isn't a SHF_COMPRESSED section. */
2594 hdr_size
= bfd_get_compression_header_size (ibfd
, isec
);
2598 /* Adjust the size of the output SHF_COMPRESSED section. */
2599 if (hdr_size
== sizeof (Elf32_External_Chdr
))
2600 return (size
- sizeof (Elf32_External_Chdr
)
2601 + sizeof (Elf64_External_Chdr
));
2603 return (size
- sizeof (Elf64_External_Chdr
)
2604 + sizeof (Elf32_External_Chdr
));
2609 bfd_convert_section_contents
2612 bfd_boolean bfd_convert_section_contents
2613 (bfd *ibfd, asection *isec, bfd *obfd,
2614 bfd_byte **ptr, bfd_size_type *ptr_size);
2617 Convert the contents, stored in @var{*ptr}, of the section
2618 @var{isec} in input BFD @var{ibfd} to output BFD @var{obfd}
2619 if needed. The original buffer pointed to by @var{*ptr} may
2620 be freed and @var{*ptr} is returned with memory malloc'd by this
2621 function, and the new size written to @var{ptr_size}.
2625 bfd_convert_section_contents (bfd
*ibfd
, sec_ptr isec
, bfd
*obfd
,
2626 bfd_byte
**ptr
, bfd_size_type
*ptr_size
)
2629 bfd_size_type ihdr_size
, ohdr_size
, size
;
2630 Elf_Internal_Chdr chdr
;
2631 bfd_boolean use_memmove
;
2633 /* Do nothing if either input or output aren't ELF. */
2634 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2635 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
2638 /* Do nothing if ELF classes of input and output are the same. */
2639 if (get_elf_backend_data (ibfd
)->s
->elfclass
2640 == get_elf_backend_data (obfd
)->s
->elfclass
)
2643 /* Convert GNU properties. */
2644 if (CONST_STRNEQ (isec
->name
, NOTE_GNU_PROPERTY_SECTION_NAME
))
2645 return _bfd_elf_convert_gnu_properties (ibfd
, isec
, obfd
, ptr
,
2648 /* Do nothing if input file will be decompressed. */
2649 if ((ibfd
->flags
& BFD_DECOMPRESS
))
2652 /* Do nothing if the input section isn't a SHF_COMPRESSED section. */
2653 ihdr_size
= bfd_get_compression_header_size (ibfd
, isec
);
2659 /* Convert the contents of the input SHF_COMPRESSED section to
2660 output. Get the input compression header and the size of the
2661 output compression header. */
2662 if (ihdr_size
== sizeof (Elf32_External_Chdr
))
2664 Elf32_External_Chdr
*echdr
= (Elf32_External_Chdr
*) contents
;
2665 chdr
.ch_type
= bfd_get_32 (ibfd
, &echdr
->ch_type
);
2666 chdr
.ch_size
= bfd_get_32 (ibfd
, &echdr
->ch_size
);
2667 chdr
.ch_addralign
= bfd_get_32 (ibfd
, &echdr
->ch_addralign
);
2669 ohdr_size
= sizeof (Elf64_External_Chdr
);
2671 use_memmove
= FALSE
;
2675 Elf64_External_Chdr
*echdr
= (Elf64_External_Chdr
*) contents
;
2676 chdr
.ch_type
= bfd_get_32 (ibfd
, &echdr
->ch_type
);
2677 chdr
.ch_size
= bfd_get_64 (ibfd
, &echdr
->ch_size
);
2678 chdr
.ch_addralign
= bfd_get_64 (ibfd
, &echdr
->ch_addralign
);
2680 ohdr_size
= sizeof (Elf32_External_Chdr
);
2684 size
= bfd_section_size (isec
) - ihdr_size
+ ohdr_size
;
2687 contents
= (bfd_byte
*) bfd_malloc (size
);
2688 if (contents
== NULL
)
2692 /* Write out the output compression header. */
2693 if (ohdr_size
== sizeof (Elf32_External_Chdr
))
2695 Elf32_External_Chdr
*echdr
= (Elf32_External_Chdr
*) contents
;
2696 bfd_put_32 (obfd
, ELFCOMPRESS_ZLIB
, &echdr
->ch_type
);
2697 bfd_put_32 (obfd
, chdr
.ch_size
, &echdr
->ch_size
);
2698 bfd_put_32 (obfd
, chdr
.ch_addralign
, &echdr
->ch_addralign
);
2702 Elf64_External_Chdr
*echdr
= (Elf64_External_Chdr
*) contents
;
2703 bfd_put_32 (obfd
, ELFCOMPRESS_ZLIB
, &echdr
->ch_type
);
2704 bfd_put_32 (obfd
, 0, &echdr
->ch_reserved
);
2705 bfd_put_64 (obfd
, chdr
.ch_size
, &echdr
->ch_size
);
2706 bfd_put_64 (obfd
, chdr
.ch_addralign
, &echdr
->ch_addralign
);
2709 /* Copy the compressed contents. */
2711 memmove (contents
+ ohdr_size
, *ptr
+ ihdr_size
, size
- ohdr_size
);
2714 memcpy (contents
+ ohdr_size
, *ptr
+ ihdr_size
, size
- ohdr_size
);