1 /* Generic BFD library interface and support routines.
2 Copyright (C) 1990-2018 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 . {* When a file is closed by the caching routines, BFD retains
78 . state information on the file here... *}
81 . {* File modified time, if mtime_set is TRUE. *}
84 . {* A unique identifier of the BFD *}
87 . {* The format which belongs to the BFD. (object, core, etc.) *}
88 . ENUM_BITFIELD (bfd_format) format : 3;
90 . {* The direction with which the BFD was opened. *}
91 . ENUM_BITFIELD (bfd_direction) direction : 2;
93 . {* Format_specific flags. *}
94 . flagword flags : 20;
96 . {* Values that may appear in the flags field of a BFD. These also
97 . appear in the object_flags field of the bfd_target structure, where
98 . they indicate the set of flags used by that backend (not all flags
99 . are meaningful for all object file formats) (FIXME: at the moment,
100 . the object_flags values have mostly just been copied from backend
101 . to another, and are not necessarily correct). *}
103 .#define BFD_NO_FLAGS 0x0
105 . {* BFD contains relocation entries. *}
106 .#define HAS_RELOC 0x1
108 . {* BFD is directly executable. *}
111 . {* BFD has line number information (basically used for F_LNNO in a
113 .#define HAS_LINENO 0x4
115 . {* BFD has debugging information. *}
116 .#define HAS_DEBUG 0x08
118 . {* BFD has symbols. *}
119 .#define HAS_SYMS 0x10
121 . {* BFD has local symbols (basically used for F_LSYMS in a COFF
123 .#define HAS_LOCALS 0x20
125 . {* BFD is a dynamic object. *}
126 .#define DYNAMIC 0x40
128 . {* Text section is write protected (if D_PAGED is not set, this is
129 . like an a.out NMAGIC file) (the linker sets this by default, but
130 . clears it for -r or -N). *}
131 .#define WP_TEXT 0x80
133 . {* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the
134 . linker sets this by default, but clears it for -r or -n or -N). *}
135 .#define D_PAGED 0x100
137 . {* BFD is relaxable (this means that bfd_relax_section may be able to
138 . do something) (sometimes bfd_relax_section can do something even if
139 . this is not set). *}
140 .#define BFD_IS_RELAXABLE 0x200
142 . {* This may be set before writing out a BFD to request using a
143 . traditional format. For example, this is used to request that when
144 . writing out an a.out object the symbols not be hashed to eliminate
146 .#define BFD_TRADITIONAL_FORMAT 0x400
148 . {* This flag indicates that the BFD contents are actually cached
149 . in memory. If this is set, iostream points to a bfd_in_memory
151 .#define BFD_IN_MEMORY 0x800
153 . {* This BFD has been created by the linker and doesn't correspond
154 . to any input file. *}
155 .#define BFD_LINKER_CREATED 0x1000
157 . {* This may be set before writing out a BFD to request that it
158 . be written using values for UIDs, GIDs, timestamps, etc. that
159 . will be consistent from run to run. *}
160 .#define BFD_DETERMINISTIC_OUTPUT 0x2000
162 . {* Compress sections in this BFD. *}
163 .#define BFD_COMPRESS 0x4000
165 . {* Decompress sections in this BFD. *}
166 .#define BFD_DECOMPRESS 0x8000
168 . {* BFD is a dummy, for plugins. *}
169 .#define BFD_PLUGIN 0x10000
171 . {* Compress sections in this BFD with SHF_COMPRESSED from gABI. *}
172 .#define BFD_COMPRESS_GABI 0x20000
174 . {* Convert ELF common symbol type to STT_COMMON or STT_OBJECT in this
176 .#define BFD_CONVERT_ELF_COMMON 0x40000
178 . {* Use the ELF STT_COMMON type in this BFD. *}
179 .#define BFD_USE_ELF_STT_COMMON 0x80000
181 . {* Flags bits to be saved in bfd_preserve_save. *}
182 .#define BFD_FLAGS_SAVED \
183 . (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_LINKER_CREATED \
184 . | BFD_PLUGIN | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON \
185 . | BFD_USE_ELF_STT_COMMON)
187 . {* Flags bits which are for BFD use only. *}
188 .#define BFD_FLAGS_FOR_BFD_USE_MASK \
189 . (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_LINKER_CREATED \
190 . | BFD_PLUGIN | BFD_TRADITIONAL_FORMAT | BFD_DETERMINISTIC_OUTPUT \
191 . | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON)
193 . {* Is the file descriptor being cached? That is, can it be closed as
194 . needed, and re-opened when accessed later? *}
195 . unsigned int cacheable : 1;
197 . {* Marks whether there was a default target specified when the
198 . BFD was opened. This is used to select which matching algorithm
199 . to use to choose the back end. *}
200 . unsigned int target_defaulted : 1;
202 . {* ... and here: (``once'' means at least once). *}
203 . unsigned int opened_once : 1;
205 . {* Set if we have a locally maintained mtime value, rather than
206 . getting it from the file each time. *}
207 . unsigned int mtime_set : 1;
209 . {* Flag set if symbols from this BFD should not be exported. *}
210 . unsigned int no_export : 1;
212 . {* Remember when output has begun, to stop strange things
214 . unsigned int output_has_begun : 1;
216 . {* Have archive map. *}
217 . unsigned int has_armap : 1;
219 . {* Set if this is a thin archive. *}
220 . unsigned int is_thin_archive : 1;
222 . {* Set if only required symbols should be added in the link hash table for
223 . this object. Used by VMS linkers. *}
224 . unsigned int selective_search : 1;
226 . {* Set if this is the linker output BFD. *}
227 . unsigned int is_linker_output : 1;
229 . {* Set if this is the linker input BFD. *}
230 . unsigned int is_linker_input : 1;
232 . {* If this is an input for a compiler plug-in library. *}
233 . ENUM_BITFIELD (bfd_plugin_format) plugin_format : 2;
235 . {* Set if this is a plugin output file. *}
236 . unsigned int lto_output : 1;
238 . {* Set to dummy BFD created when claimed by a compiler plug-in
240 . bfd *plugin_dummy_bfd;
242 . {* Currently my_archive is tested before adding origin to
243 . anything. I believe that this can become always an add of
244 . origin, with origin set to 0 for non archive files. *}
247 . {* The origin in the archive of the proxy entry. This will
248 . normally be the same as origin, except for thin archives,
249 . when it will contain the current offset of the proxy in the
250 . thin archive rather than the offset of the bfd in its actual
252 . ufile_ptr proxy_origin;
254 . {* A hash table for section names. *}
255 . struct bfd_hash_table section_htab;
257 . {* Pointer to linked list of sections. *}
258 . struct bfd_section *sections;
260 . {* The last section on the section list. *}
261 . struct bfd_section *section_last;
263 . {* The number of sections. *}
264 . unsigned int section_count;
266 . {* A field used by _bfd_generic_link_add_archive_symbols. This will
267 . be used only for archive elements. *}
270 . {* Stuff only useful for object files:
271 . The start address. *}
272 . bfd_vma start_address;
274 . {* Symbol table for output BFD (with symcount entries).
275 . Also used by the linker to cache input BFD symbols. *}
276 . struct bfd_symbol **outsymbols;
278 . {* Used for input and output. *}
279 . unsigned int symcount;
281 . {* Used for slurped dynamic symbol tables. *}
282 . unsigned int dynsymcount;
284 . {* Pointer to structure which contains architecture information. *}
285 . const struct bfd_arch_info *arch_info;
287 . {* Stuff only useful for archives. *}
289 . struct bfd *my_archive; {* The containing archive BFD. *}
290 . struct bfd *archive_next; {* The next BFD in the archive. *}
291 . struct bfd *archive_head; {* The first BFD in the archive. *}
292 . struct bfd *nested_archives; {* List of nested archive in a flattened
296 . {* For input BFDs, a chain of BFDs involved in a link. *}
298 . {* For output BFD, the linker hash table. *}
299 . struct bfd_link_hash_table *hash;
302 . {* Used by the back end to hold private data. *}
305 . struct aout_data_struct *aout_data;
306 . struct artdata *aout_ar_data;
307 . struct _oasys_data *oasys_obj_data;
308 . struct _oasys_ar_data *oasys_ar_data;
309 . struct coff_tdata *coff_obj_data;
310 . struct pe_tdata *pe_obj_data;
311 . struct xcoff_tdata *xcoff_obj_data;
312 . struct ecoff_tdata *ecoff_obj_data;
313 . struct ieee_data_struct *ieee_data;
314 . struct ieee_ar_data_struct *ieee_ar_data;
315 . struct srec_data_struct *srec_data;
316 . struct verilog_data_struct *verilog_data;
317 . struct ihex_data_struct *ihex_data;
318 . struct tekhex_data_struct *tekhex_data;
319 . struct elf_obj_tdata *elf_obj_data;
320 . struct nlm_obj_tdata *nlm_obj_data;
321 . struct bout_data_struct *bout_data;
322 . struct mmo_data_struct *mmo_data;
323 . struct sun_core_struct *sun_core_data;
324 . struct sco5_core_struct *sco5_core_data;
325 . struct trad_core_struct *trad_core_data;
326 . struct som_data_struct *som_data;
327 . struct hpux_core_struct *hpux_core_data;
328 . struct hppabsd_core_struct *hppabsd_core_data;
329 . struct sgi_core_struct *sgi_core_data;
330 . struct lynx_core_struct *lynx_core_data;
331 . struct osf_core_struct *osf_core_data;
332 . struct cisco_core_struct *cisco_core_data;
333 . struct versados_data_struct *versados_data;
334 . struct netbsd_core_struct *netbsd_core_data;
335 . struct mach_o_data_struct *mach_o_data;
336 . struct mach_o_fat_data_struct *mach_o_fat_data;
337 . struct plugin_data_struct *plugin_data;
338 . struct bfd_pef_data_struct *pef_data;
339 . struct bfd_pef_xlib_data_struct *pef_xlib_data;
340 . struct bfd_sym_data_struct *sym_data;
345 . {* Used by the application to hold private data. *}
348 . {* Where all the allocated stuff under this BFD goes. This is a
349 . struct objalloc *, but we use void * to avoid requiring the inclusion
353 . {* For input BFDs, the build ID, if the object has one. *}
354 . const struct bfd_build_id *build_id;
357 .{* See note beside bfd_set_section_userdata. *}
358 .static inline bfd_boolean
359 .bfd_set_cacheable (bfd * abfd, bfd_boolean val)
361 . abfd->cacheable = val;
371 #include "libiberty.h"
372 #include "demangle.h"
373 #include "safe-ctype.h"
376 #include "coff/internal.h"
377 #include "coff/sym.h"
379 #include "libecoff.h"
384 #define EXIT_FAILURE 1
388 /* provide storage for subsystem, stack and heap data which may have been
389 passed in on the command line. Ld puts this data into a bfd_link_info
390 struct which ultimately gets passed in to the bfd. When it arrives, copy
391 it to the following struct so that the data will be available in coffcode.h
392 where it is needed. The typedef's used are defined in bfd.h */
396 Error reporting, Miscellaneous, typedef bfd, BFD front end
401 Most BFD functions return nonzero on success (check their
402 individual documentation for precise semantics). On an error,
403 they call <<bfd_set_error>> to set an error condition that callers
404 can check by calling <<bfd_get_error>>.
405 If that returns <<bfd_error_system_call>>, then check
408 The easiest way to report a BFD error to the user is to
412 Type <<bfd_error_type>>
414 The values returned by <<bfd_get_error>> are defined by the
415 enumerated type <<bfd_error_type>>.
419 .typedef enum bfd_error
421 . bfd_error_no_error = 0,
422 . bfd_error_system_call,
423 . bfd_error_invalid_target,
424 . bfd_error_wrong_format,
425 . bfd_error_wrong_object_format,
426 . bfd_error_invalid_operation,
427 . bfd_error_no_memory,
428 . bfd_error_no_symbols,
429 . bfd_error_no_armap,
430 . bfd_error_no_more_archived_files,
431 . bfd_error_malformed_archive,
432 . bfd_error_missing_dso,
433 . bfd_error_file_not_recognized,
434 . bfd_error_file_ambiguously_recognized,
435 . bfd_error_no_contents,
436 . bfd_error_nonrepresentable_section,
437 . bfd_error_no_debug_section,
438 . bfd_error_bad_value,
439 . bfd_error_file_truncated,
440 . bfd_error_file_too_big,
441 . bfd_error_on_input,
442 . bfd_error_invalid_error_code
448 static bfd_error_type bfd_error = bfd_error_no_error;
449 static bfd *input_bfd = NULL;
450 static bfd_error_type input_error = bfd_error_no_error;
452 const char *const bfd_errmsgs[] =
455 N_("System call error"),
456 N_("Invalid bfd target"),
457 N_("File in wrong format"),
458 N_("Archive object file in wrong format"),
459 N_("Invalid operation"),
460 N_("Memory exhausted"),
462 N_("Archive has no index; run ranlib to add one"),
463 N_("No more archived files"),
464 N_("Malformed archive"),
465 N_("DSO missing from command line"),
466 N_("File format not recognized"),
467 N_("File format is ambiguous"),
468 N_("Section has no contents"),
469 N_("Nonrepresentable section on output"),
470 N_("Symbol needs debug section which does not exist"),
472 N_("File truncated"),
474 N_("Error reading %s: %s"),
475 N_("#<Invalid error code>")
483 bfd_error_type bfd_get_error (void);
486 Return the current BFD error condition.
500 void bfd_set_error (bfd_error_type error_tag);
503 Set the BFD error condition to be @var{error_tag}.
505 @var{error_tag} must not be bfd_error_on_input. Use
506 bfd_set_input_error for input errors instead.
510 bfd_set_error (bfd_error_type error_tag)
512 bfd_error = error_tag;
513 if (bfd_error >= bfd_error_on_input)
522 void bfd_set_input_error (bfd *input, bfd_error_type error_tag);
526 Set the BFD error condition to be bfd_error_on_input.
527 @var{input} is the input bfd where the error occurred, and
528 @var{error_tag} the bfd_error_type error.
532 bfd_set_input_error (bfd *input, bfd_error_type error_tag)
534 /* This is an error that occurred during bfd_close when writing an
535 archive, but on one of the input files. */
536 bfd_error = bfd_error_on_input;
538 input_error = error_tag;
539 if (input_error >= bfd_error_on_input)
548 const char *bfd_errmsg (bfd_error_type error_tag);
551 Return a string describing the error @var{error_tag}, or
552 the system error if @var{error_tag} is <<bfd_error_system_call>>.
556 bfd_errmsg (bfd_error_type error_tag)
561 if (error_tag == bfd_error_on_input)
564 const char *msg = bfd_errmsg (input_error);
566 if (asprintf (&buf, _(bfd_errmsgs [error_tag]), input_bfd->filename, msg)
570 /* Ick, what to do on out of memory? */
574 if (error_tag == bfd_error_system_call)
575 return xstrerror (errno);
577 if (error_tag > bfd_error_invalid_error_code)
578 error_tag = bfd_error_invalid_error_code; /* sanity check */
580 return _(bfd_errmsgs [error_tag]);
588 void bfd_perror (const char *message);
591 Print to the standard error stream a string describing the
592 last BFD error that occurred, or the last system error if
593 the last BFD error was a system call failure. If @var{message}
594 is non-NULL and non-empty, the error string printed is preceded
595 by @var{message}, a colon, and a space. It is followed by a newline.
599 bfd_perror (const char *message)
602 if (message == NULL || *message == '\0')
603 fprintf (stderr, "%s\n", bfd_errmsg (bfd_get_error ()));
605 fprintf (stderr, "%s: %s\n", message, bfd_errmsg (bfd_get_error ()));
613 Some BFD functions want to print messages describing the
614 problem. They call a BFD error handler function. This
615 function may be overridden by the program.
617 The BFD error handler acts like vprintf.
621 .typedef void (*bfd_error_handler_type) (const char *, va_list);
625 /* The program name used when printing BFD error messages. */
627 static const char *_bfd_error_program_name;
629 /* Support for positional parameters. */
631 union _bfd_doprnt_args
651 /* This macro and _bfd_doprnt taken from libiberty _doprnt.c, tidied a
652 little and extended to handle '%A', '%B' and positional parameters.
653 'L' as a modifer for integer formats is used for bfd_vma and
654 bfd_size_type args, which vary in size depending on BFD
657 #define PRINT_TYPE(TYPE, FIELD) \
660 TYPE value = (TYPE) args[arg_no].FIELD; \
661 result = fprintf (stream, specifier, value); \
665 _bfd_doprnt (FILE *stream, const char *format, union _bfd_doprnt_args *args)
667 const char *ptr = format;
669 int total_printed = 0;
670 unsigned int arg_count = 0;
678 /* While we have regular characters, print them. */
679 char *end = strchr (ptr, '%');
681 result = fprintf (stream, "%.*s", (int) (end - ptr), ptr);
683 result = fprintf (stream, "%s", ptr);
686 else if (ptr[1] == '%')
694 /* We have a format specifier! */
695 char *sptr = specifier;
696 int wide_width = 0, short_width = 0;
699 /* Copy the % and move forward. */
702 /* Check for a positional parameter. */
704 if (*ptr != '0' && ISDIGIT (*ptr) && ptr[1] == '$')
710 /* Move past flags. */
711 while (strchr ("-+ #0'I", *ptr))
717 unsigned int arg_index;
720 arg_index = arg_count;
721 if (*ptr != '0' && ISDIGIT (*ptr) && ptr[1] == '$')
723 arg_index = *ptr - '1';
726 value = abs (args[arg_index].i);
728 sptr += sprintf (sptr, "%d", value);
731 /* Handle explicit numeric value. */
732 while (ISDIGIT (*ptr))
738 /* Copy and go past the period. */
743 unsigned int arg_index;
746 arg_index = arg_count;
747 if (*ptr != '0' && ISDIGIT (*ptr) && ptr[1] == '$')
749 arg_index = *ptr - '1';
752 value = abs (args[arg_index].i);
754 sptr += sprintf (sptr, "%d", value);
757 /* Handle explicit numeric value. */
758 while (ISDIGIT (*ptr))
761 while (strchr ("hlL", *ptr))
780 /* Copy the type specifier, and NULL terminate. */
783 if ((int) arg_no < 0)
796 /* Short values are promoted to int, so just copy it
797 as an int and trust the C library printf to cast it
798 to the right width. */
803 /* L modifier for bfd_vma or bfd_size_type may be
804 either long long or long. */
808 if (BFD_ARCH_SIZE < 64 || BFD_HOST_64BIT_LONG)
824 PRINT_TYPE (long, l);
828 #if defined (__MSVCRT__)
835 #if defined (__GNUC__) || defined (HAVE_LONG_LONG)
836 PRINT_TYPE (long long, ll);
838 /* Fake it and hope for the best. */
839 PRINT_TYPE (long, l);
853 PRINT_TYPE (double, d);
856 #if defined (__GNUC__) || defined (HAVE_LONG_DOUBLE)
857 PRINT_TYPE (long double, ld);
859 /* Fake it and hope for the best. */
860 PRINT_TYPE (double, d);
866 PRINT_TYPE (char *, p);
869 PRINT_TYPE (void *, p);
875 const char *group = NULL;
876 struct coff_comdat_info *ci;
878 sec = (asection *) args[arg_no].p;
880 /* Invoking %A with a null section pointer is an
885 && bfd_get_flavour (abfd) == bfd_target_elf_flavour
886 && elf_next_in_group (sec) != NULL
887 && (sec->flags & SEC_GROUP) == 0)
888 group = elf_group_name (sec);
889 else if (abfd != NULL
890 && bfd_get_flavour (abfd) == bfd_target_coff_flavour
891 && (ci = bfd_coff_get_comdat_section (sec->owner,
895 result = fprintf (stream, "%s[%s]", sec->name, group);
897 result = fprintf (stream, "%s", sec->name);
904 abfd = (bfd *) args[arg_no].p;
906 /* Invoking %B with a null bfd pointer is an
909 else if (abfd->my_archive
910 && !bfd_is_thin_archive (abfd->my_archive))
911 result = fprintf (stream, "%s(%s)",
912 abfd->my_archive->filename, abfd->filename);
914 result = fprintf (stream, "%s", abfd->filename);
924 total_printed += result;
927 return total_printed;
930 /* First pass over FORMAT to gather ARGS. Returns number of args. */
933 _bfd_doprnt_scan (const char *format, union _bfd_doprnt_args *args)
935 const char *ptr = format;
936 unsigned int arg_count = 0;
942 ptr = strchr (ptr, '%');
946 else if (ptr[1] == '%')
950 int wide_width = 0, short_width = 0;
956 /* Check for a positional parameter. */
958 if (*ptr != '0' && ISDIGIT (*ptr) && ptr[1] == '$')
964 /* Move past flags. */
965 while (strchr ("-+ #0'I", *ptr))
970 unsigned int arg_index;
973 arg_index = arg_count;
974 if (*ptr != '0' && ISDIGIT (*ptr) && ptr[1] == '$')
976 arg_index = *ptr - '1';
981 args[arg_index].type = Int;
985 /* Handle explicit numeric value. */
986 while (ISDIGIT (*ptr))
995 unsigned int arg_index;
998 arg_index = arg_count;
999 if (*ptr != '0' && ISDIGIT (*ptr) && ptr[1] == '$')
1001 arg_index = *ptr - '1';
1006 args[arg_index].type = Int;
1010 /* Handle explicit numeric value. */
1011 while (ISDIGIT (*ptr))
1014 while (strchr ("hlL", *ptr))
1034 if ((int) arg_no < 0)
1054 if (BFD_ARCH_SIZE < 64 || BFD_HOST_64BIT_LONG)
1068 #if defined (__GNUC__) || defined (HAVE_LONG_LONG)
1069 arg_type = LongLong;
1084 if (wide_width == 0)
1088 #if defined (__GNUC__) || defined (HAVE_LONG_DOUBLE)
1089 arg_type = LongDouble;
1108 args[arg_no].type = arg_type;
1116 /* This is the default routine to handle BFD error messages.
1117 Like fprintf (stderr, ...), but also handles some extra format specifiers.
1119 %A section name from section. For group components, prints group name too.
1120 %B file name from bfd. For archive components, prints archive too.
1122 Beware: Only supports a maximum of 9 format arguments. */
1125 error_handler_internal (const char *fmt, va_list ap)
1127 unsigned int i, arg_count;
1128 union _bfd_doprnt_args args[9];
1130 for (i = 0; i < sizeof (args) / sizeof (args[0]); i++)
1133 arg_count = _bfd_doprnt_scan (fmt, args);
1134 for (i = 0; i < arg_count; i++)
1136 switch (args[i].type)
1139 args[i].i = va_arg (ap, int);
1142 args[i].l = va_arg (ap, long);
1145 args[i].ll = va_arg (ap, long long);
1148 args[i].d = va_arg (ap, double);
1151 args[i].ld = va_arg (ap, long double);
1154 args[i].p = va_arg (ap, void *);
1161 /* PR 4992: Don't interrupt output being sent to stdout. */
1164 if (_bfd_error_program_name != NULL)
1165 fprintf (stderr, "%s: ", _bfd_error_program_name);
1167 fprintf (stderr, "BFD: ");
1169 _bfd_doprnt (stderr, fmt, args);
1171 /* On AIX, putc is implemented as a macro that triggers a -Wunused-value
1172 warning, so use the fputc function to avoid it. */
1173 fputc ('\n', stderr);
1177 /* This is a function pointer to the routine which should handle BFD
1178 error messages. It is called when a BFD routine encounters an
1179 error for which it wants to print a message. Going through a
1180 function pointer permits a program linked against BFD to intercept
1181 the messages and deal with them itself. */
1183 static bfd_error_handler_type _bfd_error_internal = error_handler_internal;
1186 _bfd_error_handler (const char *fmt, ...)
1191 _bfd_error_internal (fmt, ap);
1197 bfd_set_error_handler
1200 bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type);
1203 Set the BFD error handler function. Returns the previous
1207 bfd_error_handler_type
1208 bfd_set_error_handler (bfd_error_handler_type pnew)
1210 bfd_error_handler_type pold;
1212 pold = _bfd_error_internal;
1213 _bfd_error_internal = pnew;
1219 bfd_set_error_program_name
1222 void bfd_set_error_program_name (const char *);
1225 Set the program name to use when printing a BFD error. This
1226 is printed before the error message followed by a colon and
1227 space. The string must not be changed after it is passed to
1232 bfd_set_error_program_name (const char *name)
1234 _bfd_error_program_name = name;
1241 If BFD finds an internal inconsistency, the bfd assert
1242 handler is called with information on the BFD version, BFD
1243 source file and line. If this happens, most programs linked
1244 against BFD are expected to want to exit with an error, or mark
1245 the current BFD operation as failed, so it is recommended to
1246 override the default handler, which just calls
1247 _bfd_error_handler and continues.
1251 .typedef void (*bfd_assert_handler_type) (const char *bfd_formatmsg,
1252 . const char *bfd_version,
1253 . const char *bfd_file,
1258 /* Note the use of bfd_ prefix on the parameter names above: we want to
1259 show which one is the message and which is the version by naming the
1260 parameters, but avoid polluting the program-using-bfd namespace as
1261 the typedef is visible in the exported headers that the program
1262 includes. Below, it's just for consistency. */
1265 _bfd_default_assert_handler (const char *bfd_formatmsg,
1266 const char *bfd_version,
1267 const char *bfd_file,
1271 _bfd_error_handler (bfd_formatmsg, bfd_version, bfd_file, bfd_line);
1274 /* Similar to _bfd_error_handler, a program can decide to exit on an
1275 internal BFD error. We use a non-variadic type to simplify passing
1276 on parameters to other functions, e.g. _bfd_error_handler. */
1278 static bfd_assert_handler_type _bfd_assert_handler = _bfd_default_assert_handler;
1282 bfd_set_assert_handler
1285 bfd_assert_handler_type bfd_set_assert_handler (bfd_assert_handler_type);
1288 Set the BFD assert handler function. Returns the previous
1292 bfd_assert_handler_type
1293 bfd_set_assert_handler (bfd_assert_handler_type pnew)
1295 bfd_assert_handler_type pold;
1297 pold = _bfd_assert_handler;
1298 _bfd_assert_handler = pnew;
1304 Miscellaneous, Memory Usage, Error reporting, BFD front end
1310 Miscellaneous functions
1315 bfd_get_reloc_upper_bound
1318 long bfd_get_reloc_upper_bound (bfd *abfd, asection *sect);
1321 Return the number of bytes required to store the
1322 relocation information associated with section @var{sect}
1323 attached to bfd @var{abfd}. If an error occurs, return -1.
1328 bfd_get_reloc_upper_bound (bfd *abfd, sec_ptr asect)
1330 if (abfd->format != bfd_object)
1332 bfd_set_error (bfd_error_invalid_operation);
1336 return BFD_SEND (abfd, _get_reloc_upper_bound, (abfd, asect));
1341 bfd_canonicalize_reloc
1344 long bfd_canonicalize_reloc
1345 (bfd *abfd, asection *sec, arelent **loc, asymbol **syms);
1348 Call the back end associated with the open BFD
1349 @var{abfd} and translate the external form of the relocation
1350 information attached to @var{sec} into the internal canonical
1351 form. Place the table into memory at @var{loc}, which has
1352 been preallocated, usually by a call to
1353 <<bfd_get_reloc_upper_bound>>. Returns the number of relocs, or
1356 The @var{syms} table is also needed for horrible internal magic
1361 bfd_canonicalize_reloc (bfd *abfd,
1366 if (abfd->format != bfd_object)
1368 bfd_set_error (bfd_error_invalid_operation);
1372 return BFD_SEND (abfd, _bfd_canonicalize_reloc,
1373 (abfd, asect, location, symbols));
1382 (bfd *abfd, asection *sec, arelent **rel, unsigned int count);
1385 Set the relocation pointer and count within
1386 section @var{sec} to the values @var{rel} and @var{count}.
1387 The argument @var{abfd} is ignored.
1389 .#define bfd_set_reloc(abfd, asect, location, count) \
1390 . BFD_SEND (abfd, _bfd_set_reloc, (abfd, asect, location, count))
1398 bfd_boolean bfd_set_file_flags (bfd *abfd, flagword flags);
1401 Set the flag word in the BFD @var{abfd} to the value @var{flags}.
1403 Possible errors are:
1404 o <<bfd_error_wrong_format>> - The target bfd was not of object format.
1405 o <<bfd_error_invalid_operation>> - The target bfd was open for reading.
1406 o <<bfd_error_invalid_operation>> -
1407 The flag word contained a bit which was not applicable to the
1408 type of file. E.g., an attempt was made to set the <<D_PAGED>> bit
1409 on a BFD format which does not support demand paging.
1414 bfd_set_file_flags (bfd *abfd, flagword flags)
1416 if (abfd->format != bfd_object)
1418 bfd_set_error (bfd_error_wrong_format);
1422 if (bfd_read_p (abfd))
1424 bfd_set_error (bfd_error_invalid_operation);
1428 bfd_get_file_flags (abfd) = flags;
1429 if ((flags & bfd_applicable_file_flags (abfd)) != flags)
1431 bfd_set_error (bfd_error_invalid_operation);
1439 bfd_assert (const char *file, int line)
1441 /* xgettext:c-format */
1442 (*_bfd_assert_handler) (_("BFD %s assertion fail %s:%d"),
1443 BFD_VERSION_STRING, file, line);
1446 /* A more or less friendly abort message. In libbfd.h abort is
1447 defined to call this function. */
1450 _bfd_abort (const char *file, int line, const char *fn)
1454 /* xgettext:c-format */
1455 (_("BFD %s internal error, aborting at %s:%d in %s\n"),
1456 BFD_VERSION_STRING, file, line, fn);
1459 /* xgettext:c-format */
1460 (_("BFD %s internal error, aborting at %s:%d\n"),
1461 BFD_VERSION_STRING, file, line);
1462 _bfd_error_handler (_("Please report this bug.\n"));
1463 _exit (EXIT_FAILURE);
1471 int bfd_get_arch_size (bfd *abfd);
1474 Returns the normalized architecture address size, in bits, as
1475 determined by the object file's format. By normalized, we mean
1476 either 32 or 64. For ELF, this information is included in the
1477 header. Use bfd_arch_bits_per_address for number of bits in
1478 the architecture address.
1481 Returns the arch size in bits if known, <<-1>> otherwise.
1485 bfd_get_arch_size (bfd *abfd)
1487 if (abfd->xvec->flavour == bfd_target_elf_flavour)
1488 return get_elf_backend_data (abfd)->s->arch_size;
1490 return bfd_arch_bits_per_address (abfd) > 32 ? 64 : 32;
1495 bfd_get_sign_extend_vma
1498 int bfd_get_sign_extend_vma (bfd *abfd);
1501 Indicates if the target architecture "naturally" sign extends
1502 an address. Some architectures implicitly sign extend address
1503 values when they are converted to types larger than the size
1504 of an address. For instance, bfd_get_start_address() will
1505 return an address sign extended to fill a bfd_vma when this is
1509 Returns <<1>> if the target architecture is known to sign
1510 extend addresses, <<0>> if the target architecture is known to
1511 not sign extend addresses, and <<-1>> otherwise.
1515 bfd_get_sign_extend_vma (bfd *abfd)
1519 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
1520 return get_elf_backend_data (abfd)->sign_extend_vma;
1522 name = bfd_get_target (abfd);
1524 /* Return a proper value for DJGPP & PE COFF.
1525 This function is required for DWARF2 support, but there is
1526 no place to store this information in the COFF back end.
1527 Should enough other COFF targets add support for DWARF2,
1528 a place will have to be found. Until then, this hack will do. */
1529 if (CONST_STRNEQ (name, "coff-go32")
1530 || strcmp (name, "pe-i386") == 0
1531 || strcmp (name, "pei-i386") == 0
1532 || strcmp (name, "pe-x86-64") == 0
1533 || strcmp (name, "pei-x86-64") == 0
1534 || strcmp (name, "pe-arm-wince-little") == 0
1535 || strcmp (name, "pei-arm-wince-little") == 0
1536 || strcmp (name, "aixcoff-rs6000") == 0
1537 || strcmp (name, "aix5coff64-rs6000") == 0)
1540 if (CONST_STRNEQ (name, "mach-o"))
1543 bfd_set_error (bfd_error_wrong_format);
1549 bfd_set_start_address
1552 bfd_boolean bfd_set_start_address (bfd *abfd, bfd_vma vma);
1555 Make @var{vma} the entry point of output BFD @var{abfd}.
1558 Returns <<TRUE>> on success, <<FALSE>> otherwise.
1562 bfd_set_start_address (bfd *abfd, bfd_vma vma)
1564 abfd->start_address = vma;
1573 unsigned int bfd_get_gp_size (bfd *abfd);
1576 Return the maximum size of objects to be optimized using the GP
1577 register under MIPS ECOFF. This is typically set by the <<-G>>
1578 argument to the compiler, assembler or linker.
1582 bfd_get_gp_size (bfd *abfd)
1584 if (abfd->format == bfd_object)
1586 if (abfd->xvec->flavour == bfd_target_ecoff_flavour)
1587 return ecoff_data (abfd)->gp_size;
1588 else if (abfd->xvec->flavour == bfd_target_elf_flavour)
1589 return elf_gp_size (abfd);
1599 void bfd_set_gp_size (bfd *abfd, unsigned int i);
1602 Set the maximum size of objects to be optimized using the GP
1603 register under ECOFF or MIPS ELF. This is typically set by
1604 the <<-G>> argument to the compiler, assembler or linker.
1608 bfd_set_gp_size (bfd *abfd, unsigned int i)
1610 /* Don't try to set GP size on an archive or core file! */
1611 if (abfd->format != bfd_object)
1614 if (abfd->xvec->flavour == bfd_target_ecoff_flavour)
1615 ecoff_data (abfd)->gp_size = i;
1616 else if (abfd->xvec->flavour == bfd_target_elf_flavour)
1617 elf_gp_size (abfd) = i;
1620 /* Get the GP value. This is an internal function used by some of the
1621 relocation special_function routines on targets which support a GP
1625 _bfd_get_gp_value (bfd *abfd)
1629 if (abfd->format != bfd_object)
1632 if (abfd->xvec->flavour == bfd_target_ecoff_flavour)
1633 return ecoff_data (abfd)->gp;
1634 else if (abfd->xvec->flavour == bfd_target_elf_flavour)
1635 return elf_gp (abfd);
1640 /* Set the GP value. */
1643 _bfd_set_gp_value (bfd *abfd, bfd_vma v)
1647 if (abfd->format != bfd_object)
1650 if (abfd->xvec->flavour == bfd_target_ecoff_flavour)
1651 ecoff_data (abfd)->gp = v;
1652 else if (abfd->xvec->flavour == bfd_target_elf_flavour)
1661 bfd_vma bfd_scan_vma (const char *string, const char **end, int base);
1664 Convert, like <<strtoul>>, a numerical expression
1665 @var{string} into a <<bfd_vma>> integer, and return that integer.
1666 (Though without as many bells and whistles as <<strtoul>>.)
1667 The expression is assumed to be unsigned (i.e., positive).
1668 If given a @var{base}, it is used as the base for conversion.
1669 A base of 0 causes the function to interpret the string
1670 in hex if a leading "0x" or "0X" is found, otherwise
1671 in octal if a leading zero is found, otherwise in decimal.
1673 If the value would overflow, the maximum <<bfd_vma>> value is
1678 bfd_scan_vma (const char *string, const char **end, int base)
1682 unsigned int cutlim;
1685 /* Let the host do it if possible. */
1686 if (sizeof (bfd_vma) <= sizeof (unsigned long))
1687 return strtoul (string, (char **) end, base);
1689 #if defined (HAVE_STRTOULL) && defined (HAVE_LONG_LONG)
1690 if (sizeof (bfd_vma) <= sizeof (unsigned long long))
1691 return strtoull (string, (char **) end, base);
1696 if (string[0] == '0')
1698 if ((string[1] == 'x') || (string[1] == 'X'))
1705 if ((base < 2) || (base > 36))
1710 && (string[1] == 'x' || string[1] == 'X')
1711 && ISXDIGIT (string[2]))
1716 cutoff = (~ (bfd_vma) 0) / (bfd_vma) base;
1717 cutlim = (~ (bfd_vma) 0) % (bfd_vma) base;
1725 if (ISDIGIT (digit))
1726 digit = digit - '0';
1727 else if (ISALPHA (digit))
1728 digit = TOUPPER (digit) - 'A' + 10;
1731 if (digit >= (unsigned int) base)
1733 if (value > cutoff || (value == cutoff && digit > cutlim))
1735 value = value * base + digit;
1740 value = ~ (bfd_vma) 0;
1750 bfd_copy_private_header_data
1753 bfd_boolean bfd_copy_private_header_data (bfd *ibfd, bfd *obfd);
1756 Copy private BFD header information from the BFD @var{ibfd} to the
1757 the BFD @var{obfd}. This copies information that may require
1758 sections to exist, but does not require symbol tables. Return
1759 <<true>> on success, <<false>> on error.
1760 Possible error returns are:
1762 o <<bfd_error_no_memory>> -
1763 Not enough memory exists to create private data for @var{obfd}.
1765 .#define bfd_copy_private_header_data(ibfd, obfd) \
1766 . BFD_SEND (obfd, _bfd_copy_private_header_data, \
1773 bfd_copy_private_bfd_data
1776 bfd_boolean bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd);
1779 Copy private BFD information from the BFD @var{ibfd} to the
1780 the BFD @var{obfd}. Return <<TRUE>> on success, <<FALSE>> on error.
1781 Possible error returns are:
1783 o <<bfd_error_no_memory>> -
1784 Not enough memory exists to create private data for @var{obfd}.
1786 .#define bfd_copy_private_bfd_data(ibfd, obfd) \
1787 . BFD_SEND (obfd, _bfd_copy_private_bfd_data, \
1794 bfd_set_private_flags
1797 bfd_boolean bfd_set_private_flags (bfd *abfd, flagword flags);
1800 Set private BFD flag information in the BFD @var{abfd}.
1801 Return <<TRUE>> on success, <<FALSE>> on error. Possible error
1804 o <<bfd_error_no_memory>> -
1805 Not enough memory exists to create private data for @var{obfd}.
1807 .#define bfd_set_private_flags(abfd, flags) \
1808 . BFD_SEND (abfd, _bfd_set_private_flags, (abfd, flags))
1817 The following functions exist but have not yet been documented.
1819 .#define bfd_sizeof_headers(abfd, info) \
1820 . BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, info))
1822 .#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
1823 . BFD_SEND (abfd, _bfd_find_nearest_line, \
1824 . (abfd, syms, sec, off, file, func, line, NULL))
1826 .#define bfd_find_nearest_line_discriminator(abfd, sec, syms, off, file, func, \
1828 . BFD_SEND (abfd, _bfd_find_nearest_line, \
1829 . (abfd, syms, sec, off, file, func, line, disc))
1831 .#define bfd_find_line(abfd, syms, sym, file, line) \
1832 . BFD_SEND (abfd, _bfd_find_line, \
1833 . (abfd, syms, sym, file, line))
1835 .#define bfd_find_inliner_info(abfd, file, func, line) \
1836 . BFD_SEND (abfd, _bfd_find_inliner_info, \
1837 . (abfd, file, func, line))
1839 .#define bfd_debug_info_start(abfd) \
1840 . BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
1842 .#define bfd_debug_info_end(abfd) \
1843 . BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
1845 .#define bfd_debug_info_accumulate(abfd, section) \
1846 . BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
1848 .#define bfd_stat_arch_elt(abfd, stat) \
1849 . BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
1851 .#define bfd_update_armap_timestamp(abfd) \
1852 . BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))
1854 .#define bfd_set_arch_mach(abfd, arch, mach)\
1855 . BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
1857 .#define bfd_relax_section(abfd, section, link_info, again) \
1858 . BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
1860 .#define bfd_gc_sections(abfd, link_info) \
1861 . BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info))
1863 .#define bfd_lookup_section_flags(link_info, flag_info, section) \
1864 . BFD_SEND (abfd, _bfd_lookup_section_flags, (link_info, flag_info, section))
1866 .#define bfd_merge_sections(abfd, link_info) \
1867 . BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info))
1869 .#define bfd_is_group_section(abfd, sec) \
1870 . BFD_SEND (abfd, _bfd_is_group_section, (abfd, sec))
1872 .#define bfd_discard_group(abfd, sec) \
1873 . BFD_SEND (abfd, _bfd_discard_group, (abfd, sec))
1875 .#define bfd_link_hash_table_create(abfd) \
1876 . BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
1878 .#define bfd_link_add_symbols(abfd, info) \
1879 . BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
1881 .#define bfd_link_just_syms(abfd, sec, info) \
1882 . BFD_SEND (abfd, _bfd_link_just_syms, (sec, info))
1884 .#define bfd_final_link(abfd, info) \
1885 . BFD_SEND (abfd, _bfd_final_link, (abfd, info))
1887 .#define bfd_free_cached_info(abfd) \
1888 . BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
1890 .#define bfd_get_dynamic_symtab_upper_bound(abfd) \
1891 . BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
1893 .#define bfd_print_private_bfd_data(abfd, file)\
1894 . BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file))
1896 .#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
1897 . BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
1899 .#define bfd_get_synthetic_symtab(abfd, count, syms, dyncount, dynsyms, ret) \
1900 . BFD_SEND (abfd, _bfd_get_synthetic_symtab, (abfd, count, syms, \
1901 . dyncount, dynsyms, ret))
1903 .#define bfd_get_dynamic_reloc_upper_bound(abfd) \
1904 . BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
1906 .#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
1907 . BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
1909 .extern bfd_byte *bfd_get_relocated_section_contents
1910 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *,
1911 . bfd_boolean, asymbol **);
1917 bfd_get_relocated_section_contents (bfd *abfd,
1918 struct bfd_link_info *link_info,
1919 struct bfd_link_order *link_order,
1921 bfd_boolean relocatable,
1925 bfd_byte *(*fn) (bfd *, struct bfd_link_info *, struct bfd_link_order *,
1926 bfd_byte *, bfd_boolean, asymbol **);
1928 if (link_order->type == bfd_indirect_link_order)
1930 abfd2 = link_order->u.indirect.section->owner;
1937 fn = abfd2->xvec->_bfd_get_relocated_section_contents;
1939 return (*fn) (abfd, link_info, link_order, data, relocatable, symbols);
1942 /* Record information about an ELF program header. */
1945 bfd_record_phdr (bfd *abfd,
1947 bfd_boolean flags_valid,
1949 bfd_boolean at_valid,
1951 bfd_boolean includes_filehdr,
1952 bfd_boolean includes_phdrs,
1956 struct elf_segment_map *m, **pm;
1959 if (bfd_get_flavour (abfd) != bfd_target_elf_flavour)
1962 amt = sizeof (struct elf_segment_map);
1963 amt += ((bfd_size_type) count - 1) * sizeof (asection *);
1964 m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
1971 m->p_flags_valid = flags_valid;
1972 m->p_paddr_valid = at_valid;
1973 m->includes_filehdr = includes_filehdr;
1974 m->includes_phdrs = includes_phdrs;
1977 memcpy (m->sections, secs, count * sizeof (asection *));
1979 for (pm = &elf_seg_map (abfd); *pm != NULL; pm = &(*pm)->next)
1987 /* Return true iff this target is 32-bit. */
1992 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
1994 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1995 return bed->s->elfclass == ELFCLASS32;
1998 /* For non-ELF targets, use architecture information. */
1999 return bfd_arch_bits_per_address (abfd) <= 32;
2003 /* bfd_sprintf_vma and bfd_fprintf_vma display an address in the
2004 target's address size. */
2007 bfd_sprintf_vma (bfd *abfd ATTRIBUTE_UNUSED, char *buf, bfd_vma value)
2012 sprintf (buf, "%08lx", (unsigned long) value & 0xffffffff);
2016 sprintf_vma (buf, value);
2020 bfd_fprintf_vma (bfd *abfd ATTRIBUTE_UNUSED, void *stream, bfd_vma value)
2025 fprintf ((FILE *) stream, "%08lx", (unsigned long) value & 0xffffffff);
2029 fprintf_vma ((FILE *) stream, value);
2037 bfd_boolean bfd_alt_mach_code (bfd *abfd, int alternative);
2041 When more than one machine code number is available for the
2042 same machine type, this function can be used to switch between
2043 the preferred one (alternative == 0) and any others. Currently,
2044 only ELF supports this feature, with up to two alternate
2049 bfd_alt_mach_code (bfd *abfd, int alternative)
2051 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
2055 switch (alternative)
2058 code = get_elf_backend_data (abfd)->elf_machine_code;
2062 code = get_elf_backend_data (abfd)->elf_machine_alt1;
2068 code = get_elf_backend_data (abfd)->elf_machine_alt2;
2077 elf_elfheader (abfd)->e_machine = code;
2087 bfd_emul_get_maxpagesize
2090 bfd_vma bfd_emul_get_maxpagesize (const char *);
2093 Returns the maximum page size, in bytes, as determined by
2097 Returns the maximum page size in bytes for ELF, 0 otherwise.
2101 bfd_emul_get_maxpagesize (const char *emul)
2103 const bfd_target *target;
2105 target = bfd_find_target (emul, NULL);
2107 && target->flavour == bfd_target_elf_flavour)
2108 return xvec_get_elf_backend_data (target)->maxpagesize;
2114 bfd_elf_set_pagesize (const bfd_target *target, bfd_vma size,
2115 int offset, const bfd_target *orig_target)
2117 if (target->flavour == bfd_target_elf_flavour)
2119 const struct elf_backend_data *bed;
2121 bed = xvec_get_elf_backend_data (target);
2122 *((bfd_vma *) ((char *) bed + offset)) = size;
2125 if (target->alternative_target
2126 && target->alternative_target != orig_target)
2127 bfd_elf_set_pagesize (target->alternative_target, size, offset,
2133 bfd_emul_set_maxpagesize
2136 void bfd_emul_set_maxpagesize (const char *, bfd_vma);
2139 For ELF, set the maximum page size for the emulation. It is
2140 a no-op for other formats.
2145 bfd_emul_set_maxpagesize (const char *emul, bfd_vma size)
2147 const bfd_target *target;
2149 target = bfd_find_target (emul, NULL);
2151 bfd_elf_set_pagesize (target, size,
2152 offsetof (struct elf_backend_data,
2153 maxpagesize), target);
2158 bfd_emul_get_commonpagesize
2161 bfd_vma bfd_emul_get_commonpagesize (const char *);
2164 Returns the common page size, in bytes, as determined by
2168 Returns the common page size in bytes for ELF, 0 otherwise.
2172 bfd_emul_get_commonpagesize (const char *emul)
2174 const bfd_target *target;
2176 target = bfd_find_target (emul, NULL);
2178 && target->flavour == bfd_target_elf_flavour)
2179 return xvec_get_elf_backend_data (target)->commonpagesize;
2186 bfd_emul_set_commonpagesize
2189 void bfd_emul_set_commonpagesize (const char *, bfd_vma);
2192 For ELF, set the common page size for the emulation. It is
2193 a no-op for other formats.
2198 bfd_emul_set_commonpagesize (const char *emul, bfd_vma size)
2200 const bfd_target *target;
2202 target = bfd_find_target (emul, NULL);
2204 bfd_elf_set_pagesize (target, size,
2205 offsetof (struct elf_backend_data,
2206 commonpagesize), target);
2214 char *bfd_demangle (bfd *, const char *, int);
2217 Wrapper around cplus_demangle. Strips leading underscores and
2218 other such chars that would otherwise confuse the demangler.
2219 If passed a g++ v3 ABI mangled name, returns a buffer allocated
2220 with malloc holding the demangled name. Returns NULL otherwise
2221 and on memory alloc failure.
2225 bfd_demangle (bfd *abfd, const char *name, int options)
2228 const char *pre, *suf;
2230 bfd_boolean skip_lead;
2232 skip_lead = (abfd != NULL
2234 && bfd_get_symbol_leading_char (abfd) == *name);
2238 /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF
2239 or the MS PE format. These formats have a number of leading '.'s
2240 on at least some symbols, so we remove all dots to avoid
2241 confusing the demangler. */
2243 while (*name == '.' || *name == '$')
2245 pre_len = name - pre;
2247 /* Strip off @plt and suchlike too. */
2249 suf = strchr (name, '@');
2252 alloc = (char *) bfd_malloc (suf - name + 1);
2255 memcpy (alloc, name, suf - name);
2256 alloc[suf - name] = '\0';
2260 res = cplus_demangle (name, options);
2269 size_t len = strlen (pre) + 1;
2270 alloc = (char *) bfd_malloc (len);
2273 memcpy (alloc, pre, len);
2279 /* Put back any prefix or suffix. */
2280 if (pre_len != 0 || suf != NULL)
2289 suf_len = strlen (suf) + 1;
2290 final = (char *) bfd_malloc (pre_len + len + suf_len);
2293 memcpy (final, pre, pre_len);
2294 memcpy (final + pre_len, res, len);
2295 memcpy (final + pre_len + len, suf, suf_len);
2306 bfd_update_compression_header
2309 void bfd_update_compression_header
2310 (bfd *abfd, bfd_byte *contents, asection *sec);
2313 Set the compression header at CONTENTS of SEC in ABFD and update
2314 elf_section_flags for compression.
2318 bfd_update_compression_header (bfd *abfd, bfd_byte *contents,
2321 if ((abfd->flags & BFD_COMPRESS) != 0)
2323 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
2325 if ((abfd->flags & BFD_COMPRESS_GABI) != 0)
2327 const struct elf_backend_data *bed
2328 = get_elf_backend_data (abfd);
2330 /* Set the SHF_COMPRESSED bit. */
2331 elf_section_flags (sec) |= SHF_COMPRESSED;
2333 if (bed->s->elfclass == ELFCLASS32)
2335 Elf32_External_Chdr *echdr
2336 = (Elf32_External_Chdr *) contents;
2337 bfd_put_32 (abfd, ELFCOMPRESS_ZLIB, &echdr->ch_type);
2338 bfd_put_32 (abfd, sec->size, &echdr->ch_size);
2339 bfd_put_32 (abfd, 1 << sec->alignment_power,
2340 &echdr->ch_addralign);
2344 Elf64_External_Chdr *echdr
2345 = (Elf64_External_Chdr *) contents;
2346 bfd_put_32 (abfd, ELFCOMPRESS_ZLIB, &echdr->ch_type);
2347 bfd_put_32 (abfd, 0, &echdr->ch_reserved);
2348 bfd_put_64 (abfd, sec->size, &echdr->ch_size);
2349 bfd_put_64 (abfd, 1 << sec->alignment_power,
2350 &echdr->ch_addralign);
2355 /* Clear the SHF_COMPRESSED bit. */
2356 elf_section_flags (sec) &= ~SHF_COMPRESSED;
2358 /* Write the zlib header. It should be "ZLIB" followed by
2359 the uncompressed section size, 8 bytes in big-endian
2361 memcpy (contents, "ZLIB", 4);
2362 bfd_putb64 (sec->size, contents + 4);
2372 bfd_check_compression_header
2375 bfd_boolean bfd_check_compression_header
2376 (bfd *abfd, bfd_byte *contents, asection *sec,
2377 bfd_size_type *uncompressed_size);
2380 Check the compression header at CONTENTS of SEC in ABFD and
2381 store the uncompressed size in UNCOMPRESSED_SIZE if the
2382 compression header is valid.
2385 Return TRUE if the compression header is valid.
2389 bfd_check_compression_header (bfd *abfd, bfd_byte *contents,
2391 bfd_size_type *uncompressed_size)
2393 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
2394 && (elf_section_flags (sec) & SHF_COMPRESSED) != 0)
2396 Elf_Internal_Chdr chdr;
2397 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2398 if (bed->s->elfclass == ELFCLASS32)
2400 Elf32_External_Chdr *echdr = (Elf32_External_Chdr *) contents;
2401 chdr.ch_type = bfd_get_32 (abfd, &echdr->ch_type);
2402 chdr.ch_size = bfd_get_32 (abfd, &echdr->ch_size);
2403 chdr.ch_addralign = bfd_get_32 (abfd, &echdr->ch_addralign);
2407 Elf64_External_Chdr *echdr = (Elf64_External_Chdr *) contents;
2408 chdr.ch_type = bfd_get_32 (abfd, &echdr->ch_type);
2409 chdr.ch_size = bfd_get_64 (abfd, &echdr->ch_size);
2410 chdr.ch_addralign = bfd_get_64 (abfd, &echdr->ch_addralign);
2412 if (chdr.ch_type == ELFCOMPRESS_ZLIB
2413 && chdr.ch_addralign == 1U << sec->alignment_power)
2415 *uncompressed_size = chdr.ch_size;
2425 bfd_get_compression_header_size
2428 int bfd_get_compression_header_size (bfd *abfd, asection *sec);
2431 Return the size of the compression header of SEC in ABFD.
2434 Return the size of the compression header in bytes.
2438 bfd_get_compression_header_size (bfd *abfd, asection *sec)
2440 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
2444 if (!(abfd->flags & BFD_COMPRESS_GABI))
2447 else if (!(elf_section_flags (sec) & SHF_COMPRESSED))
2450 if (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS32)
2451 return sizeof (Elf32_External_Chdr);
2453 return sizeof (Elf64_External_Chdr);
2461 bfd_convert_section_size
2464 bfd_size_type bfd_convert_section_size
2465 (bfd *ibfd, asection *isec, bfd *obfd, bfd_size_type size);
2468 Convert the size @var{size} of the section @var{isec} in input
2469 BFD @var{ibfd} to the section size in output BFD @var{obfd}.
2473 bfd_convert_section_size (bfd *ibfd, sec_ptr isec, bfd *obfd,
2476 bfd_size_type hdr_size;
2478 /* Do nothing if input file will be decompressed. */
2479 if ((ibfd->flags & BFD_DECOMPRESS))
2482 /* Do nothing if either input or output aren't ELF. */
2483 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2484 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2487 /* Do nothing if ELF classes of input and output are the same. */
2488 if (get_elf_backend_data (ibfd)->s->elfclass
2489 == get_elf_backend_data (obfd)->s->elfclass)
2492 /* Do nothing if the input section isn't a SHF_COMPRESSED section. */
2493 hdr_size = bfd_get_compression_header_size (ibfd, isec);
2497 /* Adjust the size of the output SHF_COMPRESSED section. */
2498 if (hdr_size == sizeof (Elf32_External_Chdr))
2499 return (size - sizeof (Elf32_External_Chdr)
2500 + sizeof (Elf64_External_Chdr));
2502 return (size - sizeof (Elf64_External_Chdr)
2503 + sizeof (Elf32_External_Chdr));
2508 bfd_convert_section_contents
2511 bfd_boolean bfd_convert_section_contents
2512 (bfd *ibfd, asection *isec, bfd *obfd,
2513 bfd_byte **ptr, bfd_size_type *ptr_size);
2516 Convert the contents, stored in @var{*ptr}, of the section
2517 @var{isec} in input BFD @var{ibfd} to output BFD @var{obfd}
2518 if needed. The original buffer pointed to by @var{*ptr} may
2519 be freed and @var{*ptr} is returned with memory malloc'd by this
2520 function, and the new size written to @var{ptr_size}.
2524 bfd_convert_section_contents (bfd *ibfd, sec_ptr isec, bfd *obfd,
2525 bfd_byte **ptr, bfd_size_type *ptr_size)
2528 bfd_size_type ihdr_size, ohdr_size, size;
2529 Elf_Internal_Chdr chdr;
2530 bfd_boolean use_memmove;
2532 /* Do nothing if input file will be decompressed. */
2533 if ((ibfd->flags & BFD_DECOMPRESS))
2536 /* Do nothing if either input or output aren't ELF. */
2537 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2538 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2541 /* Do nothing if ELF classes of input and output are the same. */
2542 if (get_elf_backend_data (ibfd)->s->elfclass
2543 == get_elf_backend_data (obfd)->s->elfclass)
2546 /* Do nothing if the input section isn't a SHF_COMPRESSED section. */
2547 ihdr_size = bfd_get_compression_header_size (ibfd, isec);
2553 /* Convert the contents of the input SHF_COMPRESSED section to
2554 output. Get the input compression header and the size of the
2555 output compression header. */
2556 if (ihdr_size == sizeof (Elf32_External_Chdr))
2558 Elf32_External_Chdr *echdr = (Elf32_External_Chdr *) contents;
2559 chdr.ch_type = bfd_get_32 (ibfd, &echdr->ch_type);
2560 chdr.ch_size = bfd_get_32 (ibfd, &echdr->ch_size);
2561 chdr.ch_addralign = bfd_get_32 (ibfd, &echdr->ch_addralign);
2563 ohdr_size = sizeof (Elf64_External_Chdr);
2565 use_memmove = FALSE;
2569 Elf64_External_Chdr *echdr = (Elf64_External_Chdr *) contents;
2570 chdr.ch_type = bfd_get_32 (ibfd, &echdr->ch_type);
2571 chdr.ch_size = bfd_get_64 (ibfd, &echdr->ch_size);
2572 chdr.ch_addralign = bfd_get_64 (ibfd, &echdr->ch_addralign);
2574 ohdr_size = sizeof (Elf32_External_Chdr);
2578 size = bfd_get_section_size (isec) - ihdr_size + ohdr_size;
2581 contents = (bfd_byte *) bfd_malloc (size);
2582 if (contents == NULL)
2586 /* Write out the output compression header. */
2587 if (ohdr_size == sizeof (Elf32_External_Chdr))
2589 Elf32_External_Chdr *echdr = (Elf32_External_Chdr *) contents;
2590 bfd_put_32 (obfd, ELFCOMPRESS_ZLIB, &echdr->ch_type);
2591 bfd_put_32 (obfd, chdr.ch_size, &echdr->ch_size);
2592 bfd_put_32 (obfd, chdr.ch_addralign, &echdr->ch_addralign);
2596 Elf64_External_Chdr *echdr = (Elf64_External_Chdr *) contents;
2597 bfd_put_32 (obfd, ELFCOMPRESS_ZLIB, &echdr->ch_type);
2598 bfd_put_32 (obfd, 0, &echdr->ch_reserved);
2599 bfd_put_64 (obfd, chdr.ch_size, &echdr->ch_size);
2600 bfd_put_64 (obfd, chdr.ch_addralign, &echdr->ch_addralign);
2603 /* Copy the compressed contents. */
2605 memmove (contents + ohdr_size, *ptr + ihdr_size, size - ohdr_size);
2608 memcpy (contents + ohdr_size, *ptr + ihdr_size, size - ohdr_size);