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;
450 .static inline asection *
451 .bfd_asymbol_section (const asymbol *sy)
453 . return sy->section;
456 .static inline bfd_vma
457 .bfd_asymbol_value (const asymbol *sy)
459 . return sy->section->vma + sy->value;
462 .static inline const char *
463 .bfd_asymbol_name (const asymbol *sy)
468 .static inline struct bfd *
469 .bfd_asymbol_bfd (const asymbol *sy)
471 . return sy->the_bfd;
475 .bfd_set_asymbol_name (asymbol *sy, const char *name)
480 .static inline bfd_size_type
481 .bfd_get_section_limit_octets (const bfd *abfd, const asection *sec)
483 . if (abfd->direction != write_direction && sec->rawsize != 0)
484 . return sec->rawsize;
488 .{* Find the address one past the end of SEC. *}
489 .static inline bfd_size_type
490 .bfd_get_section_limit (const bfd *abfd, const asection *sec)
492 . return bfd_get_section_limit_octets (abfd, sec) / bfd_octets_per_byte (abfd);
495 .{* Functions to handle insertion and deletion of a bfd's sections. These
496 . only handle the list pointers, ie. do not adjust section_count,
497 . target_index etc. *}
499 .bfd_section_list_remove (bfd *abfd, asection *s)
501 . asection *next = s->next;
502 . asection *prev = s->prev;
506 . abfd->sections = next;
510 . abfd->section_last = prev;
514 .bfd_section_list_append (bfd *abfd, asection *s)
517 . if (abfd->section_last)
519 . s->prev = abfd->section_last;
520 . abfd->section_last->next = s;
525 . abfd->sections = s;
527 . abfd->section_last = s;
531 .bfd_section_list_prepend (bfd *abfd, asection *s)
534 . if (abfd->sections)
536 . s->next = abfd->sections;
537 . abfd->sections->prev = s;
542 . abfd->section_last = s;
544 . abfd->sections = s;
548 .bfd_section_list_insert_after (bfd *abfd, asection *a, asection *s)
550 . asection *next = a->next;
557 . abfd->section_last = s;
561 .bfd_section_list_insert_before (bfd *abfd, asection *b, asection *s)
563 . asection *prev = b->prev;
570 . abfd->sections = s;
573 .static inline bfd_boolean
574 .bfd_section_removed_from_list (const bfd *abfd, const asection *s)
576 . return s->next ? s->next->prev != s : abfd->section_last != s;
585 #include "libiberty.h"
586 #include "demangle.h"
587 #include "safe-ctype.h"
590 #include "coff/internal.h"
591 #include "coff/sym.h"
593 #include "libecoff.h"
598 #define EXIT_FAILURE 1
602 /* provide storage for subsystem, stack and heap data which may have been
603 passed in on the command line. Ld puts this data into a bfd_link_info
604 struct which ultimately gets passed in to the bfd. When it arrives, copy
605 it to the following struct so that the data will be available in coffcode.h
606 where it is needed. The typedef's used are defined in bfd.h */
610 Error reporting, Miscellaneous, typedef bfd, BFD front end
615 Most BFD functions return nonzero on success (check their
616 individual documentation for precise semantics). On an error,
617 they call <<bfd_set_error>> to set an error condition that callers
618 can check by calling <<bfd_get_error>>.
619 If that returns <<bfd_error_system_call>>, then check
622 The easiest way to report a BFD error to the user is to
626 Type <<bfd_error_type>>
628 The values returned by <<bfd_get_error>> are defined by the
629 enumerated type <<bfd_error_type>>.
633 .typedef enum bfd_error
635 . bfd_error_no_error = 0,
636 . bfd_error_system_call,
637 . bfd_error_invalid_target,
638 . bfd_error_wrong_format,
639 . bfd_error_wrong_object_format,
640 . bfd_error_invalid_operation,
641 . bfd_error_no_memory,
642 . bfd_error_no_symbols,
643 . bfd_error_no_armap,
644 . bfd_error_no_more_archived_files,
645 . bfd_error_malformed_archive,
646 . bfd_error_missing_dso,
647 . bfd_error_file_not_recognized,
648 . bfd_error_file_ambiguously_recognized,
649 . bfd_error_no_contents,
650 . bfd_error_nonrepresentable_section,
651 . bfd_error_no_debug_section,
652 . bfd_error_bad_value,
653 . bfd_error_file_truncated,
654 . bfd_error_file_too_big,
655 . bfd_error_on_input,
656 . bfd_error_invalid_error_code
662 static bfd_error_type bfd_error = bfd_error_no_error;
663 static bfd *input_bfd = NULL;
664 static bfd_error_type input_error = bfd_error_no_error;
666 const char *const bfd_errmsgs[] =
669 N_("system call error"),
670 N_("invalid bfd target"),
671 N_("file in wrong format"),
672 N_("archive object file in wrong format"),
673 N_("invalid operation"),
674 N_("memory exhausted"),
676 N_("archive has no index; run ranlib to add one"),
677 N_("no more archived files"),
678 N_("malformed archive"),
679 N_("DSO missing from command line"),
680 N_("file format not recognized"),
681 N_("file format is ambiguous"),
682 N_("section has no contents"),
683 N_("nonrepresentable section on output"),
684 N_("symbol needs debug section which does not exist"),
686 N_("file truncated"),
688 N_("error reading %s: %s"),
689 N_("#<invalid error code>")
697 bfd_error_type bfd_get_error (void);
700 Return the current BFD error condition.
714 void bfd_set_error (bfd_error_type error_tag);
717 Set the BFD error condition to be @var{error_tag}.
719 @var{error_tag} must not be bfd_error_on_input. Use
720 bfd_set_input_error for input errors instead.
724 bfd_set_error (bfd_error_type error_tag)
726 bfd_error = error_tag;
727 if (bfd_error >= bfd_error_on_input)
736 void bfd_set_input_error (bfd *input, bfd_error_type error_tag);
740 Set the BFD error condition to be bfd_error_on_input.
741 @var{input} is the input bfd where the error occurred, and
742 @var{error_tag} the bfd_error_type error.
746 bfd_set_input_error (bfd *input, bfd_error_type error_tag)
748 /* This is an error that occurred during bfd_close when writing an
749 archive, but on one of the input files. */
750 bfd_error = bfd_error_on_input;
752 input_error = error_tag;
753 if (input_error >= bfd_error_on_input)
762 const char *bfd_errmsg (bfd_error_type error_tag);
765 Return a string describing the error @var{error_tag}, or
766 the system error if @var{error_tag} is <<bfd_error_system_call>>.
770 bfd_errmsg (bfd_error_type error_tag)
775 if (error_tag == bfd_error_on_input)
778 const char *msg = bfd_errmsg (input_error);
780 if (asprintf (&buf, _(bfd_errmsgs [error_tag]), input_bfd->filename, msg)
784 /* Ick, what to do on out of memory? */
788 if (error_tag == bfd_error_system_call)
789 return xstrerror (errno);
791 if (error_tag > bfd_error_invalid_error_code)
792 error_tag = bfd_error_invalid_error_code; /* sanity check */
794 return _(bfd_errmsgs [error_tag]);
802 void bfd_perror (const char *message);
805 Print to the standard error stream a string describing the
806 last BFD error that occurred, or the last system error if
807 the last BFD error was a system call failure. If @var{message}
808 is non-NULL and non-empty, the error string printed is preceded
809 by @var{message}, a colon, and a space. It is followed by a newline.
813 bfd_perror (const char *message)
816 if (message == NULL || *message == '\0')
817 fprintf (stderr, "%s\n", bfd_errmsg (bfd_get_error ()));
819 fprintf (stderr, "%s: %s\n", message, bfd_errmsg (bfd_get_error ()));
827 Some BFD functions want to print messages describing the
828 problem. They call a BFD error handler function. This
829 function may be overridden by the program.
831 The BFD error handler acts like vprintf.
835 .typedef void (*bfd_error_handler_type) (const char *, va_list);
839 /* The program name used when printing BFD error messages. */
841 static const char *_bfd_error_program_name;
843 /* Support for positional parameters. */
845 union _bfd_doprnt_args
865 /* This macro and _bfd_doprnt taken from libiberty _doprnt.c, tidied a
866 little and extended to handle '%pA', '%pB' and positional parameters. */
868 #define PRINT_TYPE(TYPE, FIELD) \
871 TYPE value = (TYPE) args[arg_no].FIELD; \
872 result = fprintf (stream, specifier, value); \
876 _bfd_doprnt (FILE *stream, const char *format, union _bfd_doprnt_args *args)
878 const char *ptr = format;
880 int total_printed = 0;
881 unsigned int arg_count = 0;
889 /* While we have regular characters, print them. */
890 char *end = strchr (ptr, '%');
892 result = fprintf (stream, "%.*s", (int) (end - ptr), ptr);
894 result = fprintf (stream, "%s", ptr);
897 else if (ptr[1] == '%')
905 /* We have a format specifier! */
906 char *sptr = specifier;
907 int wide_width = 0, short_width = 0;
910 /* Copy the % and move forward. */
913 /* Check for a positional parameter. */
915 if (*ptr != '0' && ISDIGIT (*ptr) && ptr[1] == '$')
921 /* Move past flags. */
922 while (strchr ("-+ #0'I", *ptr))
928 unsigned int arg_index;
931 arg_index = arg_count;
932 if (*ptr != '0' && ISDIGIT (*ptr) && ptr[1] == '$')
934 arg_index = *ptr - '1';
937 value = abs (args[arg_index].i);
939 sptr += sprintf (sptr, "%d", value);
942 /* Handle explicit numeric value. */
943 while (ISDIGIT (*ptr))
949 /* Copy and go past the period. */
954 unsigned int arg_index;
957 arg_index = arg_count;
958 if (*ptr != '0' && ISDIGIT (*ptr) && ptr[1] == '$')
960 arg_index = *ptr - '1';
963 value = abs (args[arg_index].i);
965 sptr += sprintf (sptr, "%d", value);
968 /* Handle explicit numeric value. */
969 while (ISDIGIT (*ptr))
972 while (strchr ("hlL", *ptr))
991 /* Copy the type specifier, and NULL terminate. */
994 if ((int) arg_no < 0)
1007 /* Short values are promoted to int, so just copy it
1008 as an int and trust the C library printf to cast it
1009 to the right width. */
1011 PRINT_TYPE (int, i);
1017 PRINT_TYPE (int, i);
1020 PRINT_TYPE (long, l);
1024 #if defined (__MSVCRT__)
1031 #if defined (__GNUC__) || defined (HAVE_LONG_LONG)
1032 PRINT_TYPE (long long, ll);
1034 /* Fake it and hope for the best. */
1035 PRINT_TYPE (long, l);
1048 if (wide_width == 0)
1049 PRINT_TYPE (double, d);
1052 #if defined (__GNUC__) || defined (HAVE_LONG_DOUBLE)
1053 PRINT_TYPE (long double, ld);
1055 /* Fake it and hope for the best. */
1056 PRINT_TYPE (double, d);
1062 PRINT_TYPE (char *, p);
1069 const char *group = NULL;
1070 struct coff_comdat_info *ci;
1073 sec = (asection *) args[arg_no].p;
1075 /* Invoking %pA with a null section pointer is an
1080 && bfd_get_flavour (abfd) == bfd_target_elf_flavour
1081 && elf_next_in_group (sec) != NULL
1082 && (sec->flags & SEC_GROUP) == 0)
1083 group = elf_group_name (sec);
1084 else if (abfd != NULL
1085 && bfd_get_flavour (abfd) == bfd_target_coff_flavour
1086 && (ci = bfd_coff_get_comdat_section (sec->owner,
1090 result = fprintf (stream, "%s[%s]", sec->name, group);
1092 result = fprintf (stream, "%s", sec->name);
1094 else if (*ptr == 'B')
1099 abfd = (bfd *) args[arg_no].p;
1101 /* Invoking %pB with a null bfd pointer is an
1104 else if (abfd->my_archive
1105 && !bfd_is_thin_archive (abfd->my_archive))
1106 result = fprintf (stream, "%s(%s)",
1107 abfd->my_archive->filename,
1110 result = fprintf (stream, "%s", abfd->filename);
1113 PRINT_TYPE (void *, p);
1122 total_printed += result;
1125 return total_printed;
1128 /* First pass over FORMAT to gather ARGS. Returns number of args. */
1131 _bfd_doprnt_scan (const char *format, union _bfd_doprnt_args *args)
1133 const char *ptr = format;
1134 unsigned int arg_count = 0;
1136 while (*ptr != '\0')
1140 ptr = strchr (ptr, '%');
1144 else if (ptr[1] == '%')
1148 int wide_width = 0, short_width = 0;
1149 unsigned int arg_no;
1154 /* Check for a positional parameter. */
1156 if (*ptr != '0' && ISDIGIT (*ptr) && ptr[1] == '$')
1158 arg_no = *ptr - '1';
1162 /* Move past flags. */
1163 while (strchr ("-+ #0'I", *ptr))
1168 unsigned int arg_index;
1171 arg_index = arg_count;
1172 if (*ptr != '0' && ISDIGIT (*ptr) && ptr[1] == '$')
1174 arg_index = *ptr - '1';
1179 args[arg_index].type = Int;
1183 /* Handle explicit numeric value. */
1184 while (ISDIGIT (*ptr))
1193 unsigned int arg_index;
1196 arg_index = arg_count;
1197 if (*ptr != '0' && ISDIGIT (*ptr) && ptr[1] == '$')
1199 arg_index = *ptr - '1';
1204 args[arg_index].type = Int;
1208 /* Handle explicit numeric value. */
1209 while (ISDIGIT (*ptr))
1212 while (strchr ("hlL", *ptr))
1232 if ((int) arg_no < 0)
1260 #if defined (__GNUC__) || defined (HAVE_LONG_LONG)
1261 arg_type = LongLong;
1276 if (wide_width == 0)
1280 #if defined (__GNUC__) || defined (HAVE_LONG_DOUBLE)
1281 arg_type = LongDouble;
1292 if (*ptr == 'A' || *ptr == 'B')
1302 args[arg_no].type = arg_type;
1311 error_handler_internal (const char *fmt, va_list ap)
1313 unsigned int i, arg_count;
1314 union _bfd_doprnt_args args[9];
1316 for (i = 0; i < sizeof (args) / sizeof (args[0]); i++)
1319 arg_count = _bfd_doprnt_scan (fmt, args);
1320 for (i = 0; i < arg_count; i++)
1322 switch (args[i].type)
1325 args[i].i = va_arg (ap, int);
1328 args[i].l = va_arg (ap, long);
1331 args[i].ll = va_arg (ap, long long);
1334 args[i].d = va_arg (ap, double);
1337 args[i].ld = va_arg (ap, long double);
1340 args[i].p = va_arg (ap, void *);
1347 /* PR 4992: Don't interrupt output being sent to stdout. */
1350 if (_bfd_error_program_name != NULL)
1351 fprintf (stderr, "%s: ", _bfd_error_program_name);
1353 fprintf (stderr, "BFD: ");
1355 _bfd_doprnt (stderr, fmt, args);
1357 /* On AIX, putc is implemented as a macro that triggers a -Wunused-value
1358 warning, so use the fputc function to avoid it. */
1359 fputc ('\n', stderr);
1363 /* This is a function pointer to the routine which should handle BFD
1364 error messages. It is called when a BFD routine encounters an
1365 error for which it wants to print a message. Going through a
1366 function pointer permits a program linked against BFD to intercept
1367 the messages and deal with them itself. */
1369 static bfd_error_handler_type _bfd_error_internal = error_handler_internal;
1376 void _bfd_error_handler (const char *fmt, ...) ATTRIBUTE_PRINTF_1;
1379 This is the default routine to handle BFD error messages.
1380 Like fprintf (stderr, ...), but also handles some extra format
1383 %pA section name from section. For group components, prints
1385 %pB file name from bfd. For archive components, prints
1388 Beware: Only supports a maximum of 9 format arguments.
1392 _bfd_error_handler (const char *fmt, ...)
1397 _bfd_error_internal (fmt, ap);
1403 bfd_set_error_handler
1406 bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type);
1409 Set the BFD error handler function. Returns the previous
1413 bfd_error_handler_type
1414 bfd_set_error_handler (bfd_error_handler_type pnew)
1416 bfd_error_handler_type pold;
1418 pold = _bfd_error_internal;
1419 _bfd_error_internal = pnew;
1425 bfd_set_error_program_name
1428 void bfd_set_error_program_name (const char *);
1431 Set the program name to use when printing a BFD error. This
1432 is printed before the error message followed by a colon and
1433 space. The string must not be changed after it is passed to
1438 bfd_set_error_program_name (const char *name)
1440 _bfd_error_program_name = name;
1447 If BFD finds an internal inconsistency, the bfd assert
1448 handler is called with information on the BFD version, BFD
1449 source file and line. If this happens, most programs linked
1450 against BFD are expected to want to exit with an error, or mark
1451 the current BFD operation as failed, so it is recommended to
1452 override the default handler, which just calls
1453 _bfd_error_handler and continues.
1457 .typedef void (*bfd_assert_handler_type) (const char *bfd_formatmsg,
1458 . const char *bfd_version,
1459 . const char *bfd_file,
1464 /* Note the use of bfd_ prefix on the parameter names above: we want to
1465 show which one is the message and which is the version by naming the
1466 parameters, but avoid polluting the program-using-bfd namespace as
1467 the typedef is visible in the exported headers that the program
1468 includes. Below, it's just for consistency. */
1471 _bfd_default_assert_handler (const char *bfd_formatmsg,
1472 const char *bfd_version,
1473 const char *bfd_file,
1477 _bfd_error_handler (bfd_formatmsg, bfd_version, bfd_file, bfd_line);
1480 /* Similar to _bfd_error_handler, a program can decide to exit on an
1481 internal BFD error. We use a non-variadic type to simplify passing
1482 on parameters to other functions, e.g. _bfd_error_handler. */
1484 static bfd_assert_handler_type _bfd_assert_handler = _bfd_default_assert_handler;
1488 bfd_set_assert_handler
1491 bfd_assert_handler_type bfd_set_assert_handler (bfd_assert_handler_type);
1494 Set the BFD assert handler function. Returns the previous
1498 bfd_assert_handler_type
1499 bfd_set_assert_handler (bfd_assert_handler_type pnew)
1501 bfd_assert_handler_type pold;
1503 pold = _bfd_assert_handler;
1504 _bfd_assert_handler = pnew;
1510 Miscellaneous, Memory Usage, Error reporting, BFD front end
1516 Miscellaneous functions
1521 bfd_get_reloc_upper_bound
1524 long bfd_get_reloc_upper_bound (bfd *abfd, asection *sect);
1527 Return the number of bytes required to store the
1528 relocation information associated with section @var{sect}
1529 attached to bfd @var{abfd}. If an error occurs, return -1.
1534 bfd_get_reloc_upper_bound (bfd *abfd, sec_ptr asect)
1536 if (abfd->format != bfd_object)
1538 bfd_set_error (bfd_error_invalid_operation);
1542 return BFD_SEND (abfd, _get_reloc_upper_bound, (abfd, asect));
1547 bfd_canonicalize_reloc
1550 long bfd_canonicalize_reloc
1551 (bfd *abfd, asection *sec, arelent **loc, asymbol **syms);
1554 Call the back end associated with the open BFD
1555 @var{abfd} and translate the external form of the relocation
1556 information attached to @var{sec} into the internal canonical
1557 form. Place the table into memory at @var{loc}, which has
1558 been preallocated, usually by a call to
1559 <<bfd_get_reloc_upper_bound>>. Returns the number of relocs, or
1562 The @var{syms} table is also needed for horrible internal magic
1567 bfd_canonicalize_reloc (bfd *abfd,
1572 if (abfd->format != bfd_object)
1574 bfd_set_error (bfd_error_invalid_operation);
1578 return BFD_SEND (abfd, _bfd_canonicalize_reloc,
1579 (abfd, asect, location, symbols));
1588 (bfd *abfd, asection *sec, arelent **rel, unsigned int count);
1591 Set the relocation pointer and count within
1592 section @var{sec} to the values @var{rel} and @var{count}.
1593 The argument @var{abfd} is ignored.
1595 .#define bfd_set_reloc(abfd, asect, location, count) \
1596 . BFD_SEND (abfd, _bfd_set_reloc, (abfd, asect, location, count))
1604 bfd_boolean bfd_set_file_flags (bfd *abfd, flagword flags);
1607 Set the flag word in the BFD @var{abfd} to the value @var{flags}.
1609 Possible errors are:
1610 o <<bfd_error_wrong_format>> - The target bfd was not of object format.
1611 o <<bfd_error_invalid_operation>> - The target bfd was open for reading.
1612 o <<bfd_error_invalid_operation>> -
1613 The flag word contained a bit which was not applicable to the
1614 type of file. E.g., an attempt was made to set the <<D_PAGED>> bit
1615 on a BFD format which does not support demand paging.
1620 bfd_set_file_flags (bfd *abfd, flagword flags)
1622 if (abfd->format != bfd_object)
1624 bfd_set_error (bfd_error_wrong_format);
1628 if (bfd_read_p (abfd))
1630 bfd_set_error (bfd_error_invalid_operation);
1634 abfd->flags = flags;
1635 if ((flags & bfd_applicable_file_flags (abfd)) != flags)
1637 bfd_set_error (bfd_error_invalid_operation);
1645 bfd_assert (const char *file, int line)
1647 /* xgettext:c-format */
1648 (*_bfd_assert_handler) (_("BFD %s assertion fail %s:%d"),
1649 BFD_VERSION_STRING, file, line);
1652 /* A more or less friendly abort message. In libbfd.h abort is
1653 defined to call this function. */
1656 _bfd_abort (const char *file, int line, const char *fn)
1660 /* xgettext:c-format */
1661 (_("BFD %s internal error, aborting at %s:%d in %s\n"),
1662 BFD_VERSION_STRING, file, line, fn);
1665 /* xgettext:c-format */
1666 (_("BFD %s internal error, aborting at %s:%d\n"),
1667 BFD_VERSION_STRING, file, line);
1668 _bfd_error_handler (_("Please report this bug.\n"));
1669 _exit (EXIT_FAILURE);
1677 int bfd_get_arch_size (bfd *abfd);
1680 Returns the normalized architecture address size, in bits, as
1681 determined by the object file's format. By normalized, we mean
1682 either 32 or 64. For ELF, this information is included in the
1683 header. Use bfd_arch_bits_per_address for number of bits in
1684 the architecture address.
1687 Returns the arch size in bits if known, <<-1>> otherwise.
1691 bfd_get_arch_size (bfd *abfd)
1693 if (abfd->xvec->flavour == bfd_target_elf_flavour)
1694 return get_elf_backend_data (abfd)->s->arch_size;
1696 return bfd_arch_bits_per_address (abfd) > 32 ? 64 : 32;
1701 bfd_get_sign_extend_vma
1704 int bfd_get_sign_extend_vma (bfd *abfd);
1707 Indicates if the target architecture "naturally" sign extends
1708 an address. Some architectures implicitly sign extend address
1709 values when they are converted to types larger than the size
1710 of an address. For instance, bfd_get_start_address() will
1711 return an address sign extended to fill a bfd_vma when this is
1715 Returns <<1>> if the target architecture is known to sign
1716 extend addresses, <<0>> if the target architecture is known to
1717 not sign extend addresses, and <<-1>> otherwise.
1721 bfd_get_sign_extend_vma (bfd *abfd)
1725 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
1726 return get_elf_backend_data (abfd)->sign_extend_vma;
1728 name = bfd_get_target (abfd);
1730 /* Return a proper value for DJGPP & PE COFF.
1731 This function is required for DWARF2 support, but there is
1732 no place to store this information in the COFF back end.
1733 Should enough other COFF targets add support for DWARF2,
1734 a place will have to be found. Until then, this hack will do. */
1735 if (CONST_STRNEQ (name, "coff-go32")
1736 || strcmp (name, "pe-i386") == 0
1737 || strcmp (name, "pei-i386") == 0
1738 || strcmp (name, "pe-x86-64") == 0
1739 || strcmp (name, "pei-x86-64") == 0
1740 || strcmp (name, "pe-arm-wince-little") == 0
1741 || strcmp (name, "pei-arm-wince-little") == 0
1742 || strcmp (name, "aixcoff-rs6000") == 0
1743 || strcmp (name, "aix5coff64-rs6000") == 0)
1746 if (CONST_STRNEQ (name, "mach-o"))
1749 bfd_set_error (bfd_error_wrong_format);
1755 bfd_set_start_address
1758 bfd_boolean bfd_set_start_address (bfd *abfd, bfd_vma vma);
1761 Make @var{vma} the entry point of output BFD @var{abfd}.
1764 Returns <<TRUE>> on success, <<FALSE>> otherwise.
1768 bfd_set_start_address (bfd *abfd, bfd_vma vma)
1770 abfd->start_address = vma;
1779 unsigned int bfd_get_gp_size (bfd *abfd);
1782 Return the maximum size of objects to be optimized using the GP
1783 register under MIPS ECOFF. This is typically set by the <<-G>>
1784 argument to the compiler, assembler or linker.
1788 bfd_get_gp_size (bfd *abfd)
1790 if (abfd->format == bfd_object)
1792 if (abfd->xvec->flavour == bfd_target_ecoff_flavour)
1793 return ecoff_data (abfd)->gp_size;
1794 else if (abfd->xvec->flavour == bfd_target_elf_flavour)
1795 return elf_gp_size (abfd);
1805 void bfd_set_gp_size (bfd *abfd, unsigned int i);
1808 Set the maximum size of objects to be optimized using the GP
1809 register under ECOFF or MIPS ELF. This is typically set by
1810 the <<-G>> argument to the compiler, assembler or linker.
1814 bfd_set_gp_size (bfd *abfd, unsigned int i)
1816 /* Don't try to set GP size on an archive or core file! */
1817 if (abfd->format != bfd_object)
1820 if (abfd->xvec->flavour == bfd_target_ecoff_flavour)
1821 ecoff_data (abfd)->gp_size = i;
1822 else if (abfd->xvec->flavour == bfd_target_elf_flavour)
1823 elf_gp_size (abfd) = i;
1826 /* Get the GP value. This is an internal function used by some of the
1827 relocation special_function routines on targets which support a GP
1831 _bfd_get_gp_value (bfd *abfd)
1835 if (abfd->format != bfd_object)
1838 if (abfd->xvec->flavour == bfd_target_ecoff_flavour)
1839 return ecoff_data (abfd)->gp;
1840 else if (abfd->xvec->flavour == bfd_target_elf_flavour)
1841 return elf_gp (abfd);
1846 /* Set the GP value. */
1849 _bfd_set_gp_value (bfd *abfd, bfd_vma v)
1853 if (abfd->format != bfd_object)
1856 if (abfd->xvec->flavour == bfd_target_ecoff_flavour)
1857 ecoff_data (abfd)->gp = v;
1858 else if (abfd->xvec->flavour == bfd_target_elf_flavour)
1867 bfd_vma bfd_scan_vma (const char *string, const char **end, int base);
1870 Convert, like <<strtoul>>, a numerical expression
1871 @var{string} into a <<bfd_vma>> integer, and return that integer.
1872 (Though without as many bells and whistles as <<strtoul>>.)
1873 The expression is assumed to be unsigned (i.e., positive).
1874 If given a @var{base}, it is used as the base for conversion.
1875 A base of 0 causes the function to interpret the string
1876 in hex if a leading "0x" or "0X" is found, otherwise
1877 in octal if a leading zero is found, otherwise in decimal.
1879 If the value would overflow, the maximum <<bfd_vma>> value is
1884 bfd_scan_vma (const char *string, const char **end, int base)
1888 unsigned int cutlim;
1891 /* Let the host do it if possible. */
1892 if (sizeof (bfd_vma) <= sizeof (unsigned long))
1893 return strtoul (string, (char **) end, base);
1895 #if defined (HAVE_STRTOULL) && defined (HAVE_LONG_LONG)
1896 if (sizeof (bfd_vma) <= sizeof (unsigned long long))
1897 return strtoull (string, (char **) end, base);
1902 if (string[0] == '0')
1904 if ((string[1] == 'x') || (string[1] == 'X'))
1911 if ((base < 2) || (base > 36))
1916 && (string[1] == 'x' || string[1] == 'X')
1917 && ISXDIGIT (string[2]))
1922 cutoff = (~ (bfd_vma) 0) / (bfd_vma) base;
1923 cutlim = (~ (bfd_vma) 0) % (bfd_vma) base;
1931 if (ISDIGIT (digit))
1932 digit = digit - '0';
1933 else if (ISALPHA (digit))
1934 digit = TOUPPER (digit) - 'A' + 10;
1937 if (digit >= (unsigned int) base)
1939 if (value > cutoff || (value == cutoff && digit > cutlim))
1941 value = value * base + digit;
1946 value = ~ (bfd_vma) 0;
1956 bfd_copy_private_header_data
1959 bfd_boolean bfd_copy_private_header_data (bfd *ibfd, bfd *obfd);
1962 Copy private BFD header information from the BFD @var{ibfd} to the
1963 the BFD @var{obfd}. This copies information that may require
1964 sections to exist, but does not require symbol tables. Return
1965 <<true>> on success, <<false>> on error.
1966 Possible error returns are:
1968 o <<bfd_error_no_memory>> -
1969 Not enough memory exists to create private data for @var{obfd}.
1971 .#define bfd_copy_private_header_data(ibfd, obfd) \
1972 . BFD_SEND (obfd, _bfd_copy_private_header_data, \
1979 bfd_copy_private_bfd_data
1982 bfd_boolean bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd);
1985 Copy private BFD information from the BFD @var{ibfd} to the
1986 the BFD @var{obfd}. Return <<TRUE>> on success, <<FALSE>> on error.
1987 Possible error returns are:
1989 o <<bfd_error_no_memory>> -
1990 Not enough memory exists to create private data for @var{obfd}.
1992 .#define bfd_copy_private_bfd_data(ibfd, obfd) \
1993 . BFD_SEND (obfd, _bfd_copy_private_bfd_data, \
2000 bfd_set_private_flags
2003 bfd_boolean bfd_set_private_flags (bfd *abfd, flagword flags);
2006 Set private BFD flag information in the BFD @var{abfd}.
2007 Return <<TRUE>> on success, <<FALSE>> on error. Possible error
2010 o <<bfd_error_no_memory>> -
2011 Not enough memory exists to create private data for @var{obfd}.
2013 .#define bfd_set_private_flags(abfd, flags) \
2014 . BFD_SEND (abfd, _bfd_set_private_flags, (abfd, flags))
2023 The following functions exist but have not yet been documented.
2025 .#define bfd_sizeof_headers(abfd, info) \
2026 . BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, info))
2028 .#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
2029 . BFD_SEND (abfd, _bfd_find_nearest_line, \
2030 . (abfd, syms, sec, off, file, func, line, NULL))
2032 .#define bfd_find_nearest_line_discriminator(abfd, sec, syms, off, file, func, \
2034 . BFD_SEND (abfd, _bfd_find_nearest_line, \
2035 . (abfd, syms, sec, off, file, func, line, disc))
2037 .#define bfd_find_line(abfd, syms, sym, file, line) \
2038 . BFD_SEND (abfd, _bfd_find_line, \
2039 . (abfd, syms, sym, file, line))
2041 .#define bfd_find_inliner_info(abfd, file, func, line) \
2042 . BFD_SEND (abfd, _bfd_find_inliner_info, \
2043 . (abfd, file, func, line))
2045 .#define bfd_debug_info_start(abfd) \
2046 . BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
2048 .#define bfd_debug_info_end(abfd) \
2049 . BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
2051 .#define bfd_debug_info_accumulate(abfd, section) \
2052 . BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
2054 .#define bfd_stat_arch_elt(abfd, stat) \
2055 . BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
2057 .#define bfd_update_armap_timestamp(abfd) \
2058 . BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))
2060 .#define bfd_set_arch_mach(abfd, arch, mach)\
2061 . BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
2063 .#define bfd_relax_section(abfd, section, link_info, again) \
2064 . BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
2066 .#define bfd_gc_sections(abfd, link_info) \
2067 . BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info))
2069 .#define bfd_lookup_section_flags(link_info, flag_info, section) \
2070 . BFD_SEND (abfd, _bfd_lookup_section_flags, (link_info, flag_info, section))
2072 .#define bfd_merge_sections(abfd, link_info) \
2073 . BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info))
2075 .#define bfd_is_group_section(abfd, sec) \
2076 . BFD_SEND (abfd, _bfd_is_group_section, (abfd, sec))
2078 .#define bfd_group_name(abfd, sec) \
2079 . BFD_SEND (abfd, _bfd_group_name, (abfd, sec))
2081 .#define bfd_discard_group(abfd, sec) \
2082 . BFD_SEND (abfd, _bfd_discard_group, (abfd, sec))
2084 .#define bfd_link_hash_table_create(abfd) \
2085 . BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
2087 .#define bfd_link_add_symbols(abfd, info) \
2088 . BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
2090 .#define bfd_link_just_syms(abfd, sec, info) \
2091 . BFD_SEND (abfd, _bfd_link_just_syms, (sec, info))
2093 .#define bfd_final_link(abfd, info) \
2094 . BFD_SEND (abfd, _bfd_final_link, (abfd, info))
2096 .#define bfd_free_cached_info(abfd) \
2097 . BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
2099 .#define bfd_get_dynamic_symtab_upper_bound(abfd) \
2100 . BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
2102 .#define bfd_print_private_bfd_data(abfd, file)\
2103 . BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file))
2105 .#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
2106 . BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
2108 .#define bfd_get_synthetic_symtab(abfd, count, syms, dyncount, dynsyms, ret) \
2109 . BFD_SEND (abfd, _bfd_get_synthetic_symtab, (abfd, count, syms, \
2110 . dyncount, dynsyms, ret))
2112 .#define bfd_get_dynamic_reloc_upper_bound(abfd) \
2113 . BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
2115 .#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
2116 . BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
2118 .extern bfd_byte *bfd_get_relocated_section_contents
2119 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *,
2120 . bfd_boolean, asymbol **);
2126 bfd_get_relocated_section_contents (bfd *abfd,
2127 struct bfd_link_info *link_info,
2128 struct bfd_link_order *link_order,
2130 bfd_boolean relocatable,
2134 bfd_byte *(*fn) (bfd *, struct bfd_link_info *, struct bfd_link_order *,
2135 bfd_byte *, bfd_boolean, asymbol **);
2137 if (link_order->type == bfd_indirect_link_order)
2139 abfd2 = link_order->u.indirect.section->owner;
2146 fn = abfd2->xvec->_bfd_get_relocated_section_contents;
2148 return (*fn) (abfd, link_info, link_order, data, relocatable, symbols);
2151 /* Record information about an ELF program header. */
2154 bfd_record_phdr (bfd *abfd,
2156 bfd_boolean flags_valid,
2158 bfd_boolean at_valid,
2160 bfd_boolean includes_filehdr,
2161 bfd_boolean includes_phdrs,
2165 struct elf_segment_map *m, **pm;
2168 if (bfd_get_flavour (abfd) != bfd_target_elf_flavour)
2171 amt = sizeof (struct elf_segment_map);
2172 amt += ((bfd_size_type) count - 1) * sizeof (asection *);
2173 m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
2180 m->p_flags_valid = flags_valid;
2181 m->p_paddr_valid = at_valid;
2182 m->includes_filehdr = includes_filehdr;
2183 m->includes_phdrs = includes_phdrs;
2186 memcpy (m->sections, secs, count * sizeof (asection *));
2188 for (pm = &elf_seg_map (abfd); *pm != NULL; pm = &(*pm)->next)
2196 /* Return true iff this target is 32-bit. */
2201 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
2203 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2204 return bed->s->elfclass == ELFCLASS32;
2207 /* For non-ELF targets, use architecture information. */
2208 return bfd_arch_bits_per_address (abfd) <= 32;
2212 /* bfd_sprintf_vma and bfd_fprintf_vma display an address in the
2213 target's address size. */
2216 bfd_sprintf_vma (bfd *abfd ATTRIBUTE_UNUSED, char *buf, bfd_vma value)
2221 sprintf (buf, "%08lx", (unsigned long) value & 0xffffffff);
2225 sprintf_vma (buf, value);
2229 bfd_fprintf_vma (bfd *abfd ATTRIBUTE_UNUSED, void *stream, bfd_vma value)
2234 fprintf ((FILE *) stream, "%08lx", (unsigned long) value & 0xffffffff);
2238 fprintf_vma ((FILE *) stream, value);
2246 bfd_boolean bfd_alt_mach_code (bfd *abfd, int alternative);
2250 When more than one machine code number is available for the
2251 same machine type, this function can be used to switch between
2252 the preferred one (alternative == 0) and any others. Currently,
2253 only ELF supports this feature, with up to two alternate
2258 bfd_alt_mach_code (bfd *abfd, int alternative)
2260 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
2264 switch (alternative)
2267 code = get_elf_backend_data (abfd)->elf_machine_code;
2271 code = get_elf_backend_data (abfd)->elf_machine_alt1;
2277 code = get_elf_backend_data (abfd)->elf_machine_alt2;
2286 elf_elfheader (abfd)->e_machine = code;
2296 bfd_emul_get_maxpagesize
2299 bfd_vma bfd_emul_get_maxpagesize (const char *);
2302 Returns the maximum page size, in bytes, as determined by
2306 Returns the maximum page size in bytes for ELF, 0 otherwise.
2310 bfd_emul_get_maxpagesize (const char *emul)
2312 const bfd_target *target;
2314 target = bfd_find_target (emul, NULL);
2316 && target->flavour == bfd_target_elf_flavour)
2317 return xvec_get_elf_backend_data (target)->maxpagesize;
2323 bfd_elf_set_pagesize (const bfd_target *target, bfd_vma size,
2324 int offset, const bfd_target *orig_target)
2326 if (target->flavour == bfd_target_elf_flavour)
2328 const struct elf_backend_data *bed;
2330 bed = xvec_get_elf_backend_data (target);
2331 *((bfd_vma *) ((char *) bed + offset)) = size;
2334 if (target->alternative_target
2335 && target->alternative_target != orig_target)
2336 bfd_elf_set_pagesize (target->alternative_target, size, offset,
2342 bfd_emul_set_maxpagesize
2345 void bfd_emul_set_maxpagesize (const char *, bfd_vma);
2348 For ELF, set the maximum page size for the emulation. It is
2349 a no-op for other formats.
2354 bfd_emul_set_maxpagesize (const char *emul, bfd_vma size)
2356 const bfd_target *target;
2358 target = bfd_find_target (emul, NULL);
2360 bfd_elf_set_pagesize (target, size,
2361 offsetof (struct elf_backend_data,
2362 maxpagesize), target);
2367 bfd_emul_get_commonpagesize
2370 bfd_vma bfd_emul_get_commonpagesize (const char *, bfd_boolean);
2373 Returns the common page size, in bytes, as determined by
2377 Returns the common page size in bytes for ELF, 0 otherwise.
2381 bfd_emul_get_commonpagesize (const char *emul, bfd_boolean relro)
2383 const bfd_target *target;
2385 target = bfd_find_target (emul, NULL);
2387 && target->flavour == bfd_target_elf_flavour)
2389 const struct elf_backend_data *bed;
2391 bed = xvec_get_elf_backend_data (target);
2393 return bed->relropagesize;
2395 return bed->commonpagesize;
2402 bfd_emul_set_commonpagesize
2405 void bfd_emul_set_commonpagesize (const char *, bfd_vma);
2408 For ELF, set the common page size for the emulation. It is
2409 a no-op for other formats.
2414 bfd_emul_set_commonpagesize (const char *emul, bfd_vma size)
2416 const bfd_target *target;
2418 target = bfd_find_target (emul, NULL);
2420 bfd_elf_set_pagesize (target, size,
2421 offsetof (struct elf_backend_data,
2422 commonpagesize), target);
2430 char *bfd_demangle (bfd *, const char *, int);
2433 Wrapper around cplus_demangle. Strips leading underscores and
2434 other such chars that would otherwise confuse the demangler.
2435 If passed a g++ v3 ABI mangled name, returns a buffer allocated
2436 with malloc holding the demangled name. Returns NULL otherwise
2437 and on memory alloc failure.
2441 bfd_demangle (bfd *abfd, const char *name, int options)
2444 const char *pre, *suf;
2446 bfd_boolean skip_lead;
2448 skip_lead = (abfd != NULL
2450 && bfd_get_symbol_leading_char (abfd) == *name);
2454 /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF
2455 or the MS PE format. These formats have a number of leading '.'s
2456 on at least some symbols, so we remove all dots to avoid
2457 confusing the demangler. */
2459 while (*name == '.' || *name == '$')
2461 pre_len = name - pre;
2463 /* Strip off @plt and suchlike too. */
2465 suf = strchr (name, '@');
2468 alloc = (char *) bfd_malloc (suf - name + 1);
2471 memcpy (alloc, name, suf - name);
2472 alloc[suf - name] = '\0';
2476 res = cplus_demangle (name, options);
2485 size_t len = strlen (pre) + 1;
2486 alloc = (char *) bfd_malloc (len);
2489 memcpy (alloc, pre, len);
2495 /* Put back any prefix or suffix. */
2496 if (pre_len != 0 || suf != NULL)
2505 suf_len = strlen (suf) + 1;
2506 final = (char *) bfd_malloc (pre_len + len + suf_len);
2509 memcpy (final, pre, pre_len);
2510 memcpy (final + pre_len, res, len);
2511 memcpy (final + pre_len + len, suf, suf_len);
2522 bfd_update_compression_header
2525 void bfd_update_compression_header
2526 (bfd *abfd, bfd_byte *contents, asection *sec);
2529 Set the compression header at CONTENTS of SEC in ABFD and update
2530 elf_section_flags for compression.
2534 bfd_update_compression_header (bfd *abfd, bfd_byte *contents,
2537 if ((abfd->flags & BFD_COMPRESS) != 0)
2539 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
2541 if ((abfd->flags & BFD_COMPRESS_GABI) != 0)
2543 const struct elf_backend_data *bed
2544 = get_elf_backend_data (abfd);
2546 /* Set the SHF_COMPRESSED bit. */
2547 elf_section_flags (sec) |= SHF_COMPRESSED;
2549 if (bed->s->elfclass == ELFCLASS32)
2551 Elf32_External_Chdr *echdr
2552 = (Elf32_External_Chdr *) contents;
2553 bfd_put_32 (abfd, ELFCOMPRESS_ZLIB, &echdr->ch_type);
2554 bfd_put_32 (abfd, sec->size, &echdr->ch_size);
2555 bfd_put_32 (abfd, 1 << sec->alignment_power,
2556 &echdr->ch_addralign);
2557 /* bfd_log2 (alignof (Elf32_Chdr)) */
2558 bfd_set_section_alignment (sec, 2);
2562 Elf64_External_Chdr *echdr
2563 = (Elf64_External_Chdr *) contents;
2564 bfd_put_32 (abfd, ELFCOMPRESS_ZLIB, &echdr->ch_type);
2565 bfd_put_32 (abfd, 0, &echdr->ch_reserved);
2566 bfd_put_64 (abfd, sec->size, &echdr->ch_size);
2567 bfd_put_64 (abfd, 1 << sec->alignment_power,
2568 &echdr->ch_addralign);
2569 /* bfd_log2 (alignof (Elf64_Chdr)) */
2570 bfd_set_section_alignment (sec, 3);
2575 /* Clear the SHF_COMPRESSED bit. */
2576 elf_section_flags (sec) &= ~SHF_COMPRESSED;
2578 /* Write the zlib header. It should be "ZLIB" followed by
2579 the uncompressed section size, 8 bytes in big-endian
2581 memcpy (contents, "ZLIB", 4);
2582 bfd_putb64 (sec->size, contents + 4);
2583 /* No way to keep the original alignment, just use 1 always. */
2584 bfd_set_section_alignment (sec, 0);
2594 bfd_check_compression_header
2597 bfd_boolean bfd_check_compression_header
2598 (bfd *abfd, bfd_byte *contents, asection *sec,
2599 bfd_size_type *uncompressed_size,
2600 unsigned int *uncompressed_alignment_power);
2603 Check the compression header at CONTENTS of SEC in ABFD and
2604 store the uncompressed size in UNCOMPRESSED_SIZE and the
2605 uncompressed data alignment in UNCOMPRESSED_ALIGNMENT_POWER
2606 if the compression header is valid.
2609 Return TRUE if the compression header is valid.
2613 bfd_check_compression_header (bfd *abfd, bfd_byte *contents,
2615 bfd_size_type *uncompressed_size,
2616 unsigned int *uncompressed_alignment_power)
2618 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
2619 && (elf_section_flags (sec) & SHF_COMPRESSED) != 0)
2621 Elf_Internal_Chdr chdr;
2622 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2623 if (bed->s->elfclass == ELFCLASS32)
2625 Elf32_External_Chdr *echdr = (Elf32_External_Chdr *) contents;
2626 chdr.ch_type = bfd_get_32 (abfd, &echdr->ch_type);
2627 chdr.ch_size = bfd_get_32 (abfd, &echdr->ch_size);
2628 chdr.ch_addralign = bfd_get_32 (abfd, &echdr->ch_addralign);
2632 Elf64_External_Chdr *echdr = (Elf64_External_Chdr *) contents;
2633 chdr.ch_type = bfd_get_32 (abfd, &echdr->ch_type);
2634 chdr.ch_size = bfd_get_64 (abfd, &echdr->ch_size);
2635 chdr.ch_addralign = bfd_get_64 (abfd, &echdr->ch_addralign);
2637 if (chdr.ch_type == ELFCOMPRESS_ZLIB
2638 && chdr.ch_addralign == (1U << bfd_log2 (chdr.ch_addralign)))
2640 *uncompressed_size = chdr.ch_size;
2641 *uncompressed_alignment_power = bfd_log2 (chdr.ch_addralign);
2651 bfd_get_compression_header_size
2654 int bfd_get_compression_header_size (bfd *abfd, asection *sec);
2657 Return the size of the compression header of SEC in ABFD.
2660 Return the size of the compression header in bytes.
2664 bfd_get_compression_header_size (bfd *abfd, asection *sec)
2666 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
2670 if (!(abfd->flags & BFD_COMPRESS_GABI))
2673 else if (!(elf_section_flags (sec) & SHF_COMPRESSED))
2676 if (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS32)
2677 return sizeof (Elf32_External_Chdr);
2679 return sizeof (Elf64_External_Chdr);
2687 bfd_convert_section_size
2690 bfd_size_type bfd_convert_section_size
2691 (bfd *ibfd, asection *isec, bfd *obfd, bfd_size_type size);
2694 Convert the size @var{size} of the section @var{isec} in input
2695 BFD @var{ibfd} to the section size in output BFD @var{obfd}.
2699 bfd_convert_section_size (bfd *ibfd, sec_ptr isec, bfd *obfd,
2702 bfd_size_type hdr_size;
2704 /* Do nothing if either input or output aren't ELF. */
2705 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2706 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2709 /* Do nothing if ELF classes of input and output are the same. */
2710 if (get_elf_backend_data (ibfd)->s->elfclass
2711 == get_elf_backend_data (obfd)->s->elfclass)
2714 /* Convert GNU property size. */
2715 if (CONST_STRNEQ (isec->name, NOTE_GNU_PROPERTY_SECTION_NAME))
2716 return _bfd_elf_convert_gnu_property_size (ibfd, obfd);
2718 /* Do nothing if input file will be decompressed. */
2719 if ((ibfd->flags & BFD_DECOMPRESS))
2722 /* Do nothing if the input section isn't a SHF_COMPRESSED section. */
2723 hdr_size = bfd_get_compression_header_size (ibfd, isec);
2727 /* Adjust the size of the output SHF_COMPRESSED section. */
2728 if (hdr_size == sizeof (Elf32_External_Chdr))
2729 return (size - sizeof (Elf32_External_Chdr)
2730 + sizeof (Elf64_External_Chdr));
2732 return (size - sizeof (Elf64_External_Chdr)
2733 + sizeof (Elf32_External_Chdr));
2738 bfd_convert_section_contents
2741 bfd_boolean bfd_convert_section_contents
2742 (bfd *ibfd, asection *isec, bfd *obfd,
2743 bfd_byte **ptr, bfd_size_type *ptr_size);
2746 Convert the contents, stored in @var{*ptr}, of the section
2747 @var{isec} in input BFD @var{ibfd} to output BFD @var{obfd}
2748 if needed. The original buffer pointed to by @var{*ptr} may
2749 be freed and @var{*ptr} is returned with memory malloc'd by this
2750 function, and the new size written to @var{ptr_size}.
2754 bfd_convert_section_contents (bfd *ibfd, sec_ptr isec, bfd *obfd,
2755 bfd_byte **ptr, bfd_size_type *ptr_size)
2758 bfd_size_type ihdr_size, ohdr_size, size;
2759 Elf_Internal_Chdr chdr;
2760 bfd_boolean use_memmove;
2762 /* Do nothing if either input or output aren't ELF. */
2763 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2764 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2767 /* Do nothing if ELF classes of input and output are the same. */
2768 if (get_elf_backend_data (ibfd)->s->elfclass
2769 == get_elf_backend_data (obfd)->s->elfclass)
2772 /* Convert GNU properties. */
2773 if (CONST_STRNEQ (isec->name, NOTE_GNU_PROPERTY_SECTION_NAME))
2774 return _bfd_elf_convert_gnu_properties (ibfd, isec, obfd, ptr,
2777 /* Do nothing if input file will be decompressed. */
2778 if ((ibfd->flags & BFD_DECOMPRESS))
2781 /* Do nothing if the input section isn't a SHF_COMPRESSED section. */
2782 ihdr_size = bfd_get_compression_header_size (ibfd, isec);
2788 /* Convert the contents of the input SHF_COMPRESSED section to
2789 output. Get the input compression header and the size of the
2790 output compression header. */
2791 if (ihdr_size == sizeof (Elf32_External_Chdr))
2793 Elf32_External_Chdr *echdr = (Elf32_External_Chdr *) contents;
2794 chdr.ch_type = bfd_get_32 (ibfd, &echdr->ch_type);
2795 chdr.ch_size = bfd_get_32 (ibfd, &echdr->ch_size);
2796 chdr.ch_addralign = bfd_get_32 (ibfd, &echdr->ch_addralign);
2798 ohdr_size = sizeof (Elf64_External_Chdr);
2800 use_memmove = FALSE;
2804 Elf64_External_Chdr *echdr = (Elf64_External_Chdr *) contents;
2805 chdr.ch_type = bfd_get_32 (ibfd, &echdr->ch_type);
2806 chdr.ch_size = bfd_get_64 (ibfd, &echdr->ch_size);
2807 chdr.ch_addralign = bfd_get_64 (ibfd, &echdr->ch_addralign);
2809 ohdr_size = sizeof (Elf32_External_Chdr);
2813 size = bfd_section_size (isec) - ihdr_size + ohdr_size;
2816 contents = (bfd_byte *) bfd_malloc (size);
2817 if (contents == NULL)
2821 /* Write out the output compression header. */
2822 if (ohdr_size == sizeof (Elf32_External_Chdr))
2824 Elf32_External_Chdr *echdr = (Elf32_External_Chdr *) contents;
2825 bfd_put_32 (obfd, ELFCOMPRESS_ZLIB, &echdr->ch_type);
2826 bfd_put_32 (obfd, chdr.ch_size, &echdr->ch_size);
2827 bfd_put_32 (obfd, chdr.ch_addralign, &echdr->ch_addralign);
2831 Elf64_External_Chdr *echdr = (Elf64_External_Chdr *) contents;
2832 bfd_put_32 (obfd, ELFCOMPRESS_ZLIB, &echdr->ch_type);
2833 bfd_put_32 (obfd, 0, &echdr->ch_reserved);
2834 bfd_put_64 (obfd, chdr.ch_size, &echdr->ch_size);
2835 bfd_put_64 (obfd, chdr.ch_addralign, &echdr->ch_addralign);
2838 /* Copy the compressed contents. */
2840 memmove (contents + ohdr_size, *ptr + ihdr_size, size - ohdr_size);
2843 memcpy (contents + ohdr_size, *ptr + ihdr_size, size - ohdr_size);