1 /* Generic BFD library interface and support routines.
2 Copyright (C) 1990-2015 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_uknown = 0,
56 . {* The filename the application opened the BFD with. *}
57 . const char *filename;
59 . {* A pointer to the target jump table. *}
60 . const struct bfd_target *xvec;
62 . {* The IOSTREAM, and corresponding IO vector that provide access
63 . to the file backing the BFD. *}
65 . const struct bfd_iovec *iovec;
67 . {* The caching routines use these to maintain a
68 . least-recently-used list of BFDs. *}
69 . struct bfd *lru_prev, *lru_next;
71 . {* When a file is closed by the caching routines, BFD retains
72 . state information on the file here... *}
75 . {* File modified time, if mtime_set is TRUE. *}
78 . {* A unique identifier of the BFD *}
81 . {* The format which belongs to the BFD. (object, core, etc.) *}
82 . ENUM_BITFIELD (bfd_format) format : 3;
84 . {* The direction with which the BFD was opened. *}
85 . ENUM_BITFIELD (bfd_direction) direction : 2;
87 . {* Format_specific flags. *}
88 . flagword flags : 18;
90 . {* Values that may appear in the flags field of a BFD. These also
91 . appear in the object_flags field of the bfd_target structure, where
92 . they indicate the set of flags used by that backend (not all flags
93 . are meaningful for all object file formats) (FIXME: at the moment,
94 . the object_flags values have mostly just been copied from backend
95 . to another, and are not necessarily correct). *}
97 .#define BFD_NO_FLAGS 0x00
99 . {* BFD contains relocation entries. *}
100 .#define HAS_RELOC 0x01
102 . {* BFD is directly executable. *}
105 . {* BFD has line number information (basically used for F_LNNO in a
107 .#define HAS_LINENO 0x04
109 . {* BFD has debugging information. *}
110 .#define HAS_DEBUG 0x08
112 . {* BFD has symbols. *}
113 .#define HAS_SYMS 0x10
115 . {* BFD has local symbols (basically used for F_LSYMS in a COFF
117 .#define HAS_LOCALS 0x20
119 . {* BFD is a dynamic object. *}
120 .#define DYNAMIC 0x40
122 . {* Text section is write protected (if D_PAGED is not set, this is
123 . like an a.out NMAGIC file) (the linker sets this by default, but
124 . clears it for -r or -N). *}
125 .#define WP_TEXT 0x80
127 . {* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the
128 . linker sets this by default, but clears it for -r or -n or -N). *}
129 .#define D_PAGED 0x100
131 . {* BFD is relaxable (this means that bfd_relax_section may be able to
132 . do something) (sometimes bfd_relax_section can do something even if
133 . this is not set). *}
134 .#define BFD_IS_RELAXABLE 0x200
136 . {* This may be set before writing out a BFD to request using a
137 . traditional format. For example, this is used to request that when
138 . writing out an a.out object the symbols not be hashed to eliminate
140 .#define BFD_TRADITIONAL_FORMAT 0x400
142 . {* This flag indicates that the BFD contents are actually cached
143 . in memory. If this is set, iostream points to a bfd_in_memory
145 .#define BFD_IN_MEMORY 0x800
147 . {* This BFD has been created by the linker and doesn't correspond
148 . to any input file. *}
149 .#define BFD_LINKER_CREATED 0x1000
151 . {* This may be set before writing out a BFD to request that it
152 . be written using values for UIDs, GIDs, timestamps, etc. that
153 . will be consistent from run to run. *}
154 .#define BFD_DETERMINISTIC_OUTPUT 0x2000
156 . {* Compress sections in this BFD. *}
157 .#define BFD_COMPRESS 0x4000
159 . {* Decompress sections in this BFD. *}
160 .#define BFD_DECOMPRESS 0x8000
162 . {* BFD is a dummy, for plugins. *}
163 .#define BFD_PLUGIN 0x10000
165 . {* Compress sections in this BFD with SHF_COMPRESSED from gABI. *}
166 .#define BFD_COMPRESS_GABI 0x20000
168 . {* Flags bits to be saved in bfd_preserve_save. *}
169 .#define BFD_FLAGS_SAVED \
170 . (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_PLUGIN \
171 . | BFD_COMPRESS_GABI)
173 . {* Flags bits which are for BFD use only. *}
174 .#define BFD_FLAGS_FOR_BFD_USE_MASK \
175 . (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_LINKER_CREATED \
176 . | BFD_PLUGIN | BFD_TRADITIONAL_FORMAT | BFD_DETERMINISTIC_OUTPUT \
177 . | BFD_COMPRESS_GABI)
179 . {* Is the file descriptor being cached? That is, can it be closed as
180 . needed, and re-opened when accessed later? *}
181 . unsigned int cacheable : 1;
183 . {* Marks whether there was a default target specified when the
184 . BFD was opened. This is used to select which matching algorithm
185 . to use to choose the back end. *}
186 . unsigned int target_defaulted : 1;
188 . {* ... and here: (``once'' means at least once). *}
189 . unsigned int opened_once : 1;
191 . {* Set if we have a locally maintained mtime value, rather than
192 . getting it from the file each time. *}
193 . unsigned int mtime_set : 1;
195 . {* Flag set if symbols from this BFD should not be exported. *}
196 . unsigned int no_export : 1;
198 . {* Remember when output has begun, to stop strange things
200 . unsigned int output_has_begun : 1;
202 . {* Have archive map. *}
203 . unsigned int has_armap : 1;
205 . {* Set if this is a thin archive. *}
206 . unsigned int is_thin_archive : 1;
208 . {* Set if only required symbols should be added in the link hash table for
209 . this object. Used by VMS linkers. *}
210 . unsigned int selective_search : 1;
212 . {* Set if this is the linker output BFD. *}
213 . unsigned int is_linker_output : 1;
215 . {* If this is an input for a compiler plug-in library. *}
216 . ENUM_BITFIELD (bfd_plugin_format) plugin_format : 2;
218 . {* Set if this is a plugin output file. *}
219 . unsigned int lto_output : 1;
221 . {* Set to dummy BFD created when claimed by a compiler plug-in
223 . bfd *plugin_dummy_bfd;
225 . {* Currently my_archive is tested before adding origin to
226 . anything. I believe that this can become always an add of
227 . origin, with origin set to 0 for non archive files. *}
230 . {* The origin in the archive of the proxy entry. This will
231 . normally be the same as origin, except for thin archives,
232 . when it will contain the current offset of the proxy in the
233 . thin archive rather than the offset of the bfd in its actual
235 . ufile_ptr proxy_origin;
237 . {* A hash table for section names. *}
238 . struct bfd_hash_table section_htab;
240 . {* Pointer to linked list of sections. *}
241 . struct bfd_section *sections;
243 . {* The last section on the section list. *}
244 . struct bfd_section *section_last;
246 . {* The number of sections. *}
247 . unsigned int section_count;
249 . {* A field used by _bfd_generic_link_add_archive_symbols. This will
250 . be used only for archive elements. *}
253 . {* Stuff only useful for object files:
254 . The start address. *}
255 . bfd_vma start_address;
257 . {* Symbol table for output BFD (with symcount entries).
258 . Also used by the linker to cache input BFD symbols. *}
259 . struct bfd_symbol **outsymbols;
261 . {* Used for input and output. *}
262 . unsigned int symcount;
264 . {* Used for slurped dynamic symbol tables. *}
265 . unsigned int dynsymcount;
267 . {* Pointer to structure which contains architecture information. *}
268 . const struct bfd_arch_info *arch_info;
270 . {* Stuff only useful for archives. *}
272 . struct bfd *my_archive; {* The containing archive BFD. *}
273 . struct bfd *archive_next; {* The next BFD in the archive. *}
274 . struct bfd *archive_head; {* The first BFD in the archive. *}
275 . struct bfd *nested_archives; {* List of nested archive in a flattened
279 . {* For input BFDs, a chain of BFDs involved in a link. *}
281 . {* For output BFD, the linker hash table. *}
282 . struct bfd_link_hash_table *hash;
285 . {* Used by the back end to hold private data. *}
288 . struct aout_data_struct *aout_data;
289 . struct artdata *aout_ar_data;
290 . struct _oasys_data *oasys_obj_data;
291 . struct _oasys_ar_data *oasys_ar_data;
292 . struct coff_tdata *coff_obj_data;
293 . struct pe_tdata *pe_obj_data;
294 . struct xcoff_tdata *xcoff_obj_data;
295 . struct ecoff_tdata *ecoff_obj_data;
296 . struct ieee_data_struct *ieee_data;
297 . struct ieee_ar_data_struct *ieee_ar_data;
298 . struct srec_data_struct *srec_data;
299 . struct verilog_data_struct *verilog_data;
300 . struct ihex_data_struct *ihex_data;
301 . struct tekhex_data_struct *tekhex_data;
302 . struct elf_obj_tdata *elf_obj_data;
303 . struct nlm_obj_tdata *nlm_obj_data;
304 . struct bout_data_struct *bout_data;
305 . struct mmo_data_struct *mmo_data;
306 . struct sun_core_struct *sun_core_data;
307 . struct sco5_core_struct *sco5_core_data;
308 . struct trad_core_struct *trad_core_data;
309 . struct som_data_struct *som_data;
310 . struct hpux_core_struct *hpux_core_data;
311 . struct hppabsd_core_struct *hppabsd_core_data;
312 . struct sgi_core_struct *sgi_core_data;
313 . struct lynx_core_struct *lynx_core_data;
314 . struct osf_core_struct *osf_core_data;
315 . struct cisco_core_struct *cisco_core_data;
316 . struct versados_data_struct *versados_data;
317 . struct netbsd_core_struct *netbsd_core_data;
318 . struct mach_o_data_struct *mach_o_data;
319 . struct mach_o_fat_data_struct *mach_o_fat_data;
320 . struct plugin_data_struct *plugin_data;
321 . struct bfd_pef_data_struct *pef_data;
322 . struct bfd_pef_xlib_data_struct *pef_xlib_data;
323 . struct bfd_sym_data_struct *sym_data;
328 . {* Used by the application to hold private data. *}
331 . {* Where all the allocated stuff under this BFD goes. This is a
332 . struct objalloc *, but we use void * to avoid requiring the inclusion
337 .{* See note beside bfd_set_section_userdata. *}
338 .static inline bfd_boolean
339 .bfd_set_cacheable (bfd * abfd, bfd_boolean val)
341 . abfd->cacheable = val;
351 #include "libiberty.h"
352 #include "demangle.h"
353 #include "safe-ctype.h"
356 #include "coff/internal.h"
357 #include "coff/sym.h"
359 #include "libecoff.h"
364 #define EXIT_FAILURE 1
368 /* provide storage for subsystem, stack and heap data which may have been
369 passed in on the command line. Ld puts this data into a bfd_link_info
370 struct which ultimately gets passed in to the bfd. When it arrives, copy
371 it to the following struct so that the data will be available in coffcode.h
372 where it is needed. The typedef's used are defined in bfd.h */
376 Error reporting, Miscellaneous, typedef bfd, BFD front end
381 Most BFD functions return nonzero on success (check their
382 individual documentation for precise semantics). On an error,
383 they call <<bfd_set_error>> to set an error condition that callers
384 can check by calling <<bfd_get_error>>.
385 If that returns <<bfd_error_system_call>>, then check
388 The easiest way to report a BFD error to the user is to
392 Type <<bfd_error_type>>
394 The values returned by <<bfd_get_error>> are defined by the
395 enumerated type <<bfd_error_type>>.
399 .typedef enum bfd_error
401 . bfd_error_no_error = 0,
402 . bfd_error_system_call,
403 . bfd_error_invalid_target,
404 . bfd_error_wrong_format,
405 . bfd_error_wrong_object_format,
406 . bfd_error_invalid_operation,
407 . bfd_error_no_memory,
408 . bfd_error_no_symbols,
409 . bfd_error_no_armap,
410 . bfd_error_no_more_archived_files,
411 . bfd_error_malformed_archive,
412 . bfd_error_missing_dso,
413 . bfd_error_file_not_recognized,
414 . bfd_error_file_ambiguously_recognized,
415 . bfd_error_no_contents,
416 . bfd_error_nonrepresentable_section,
417 . bfd_error_no_debug_section,
418 . bfd_error_bad_value,
419 . bfd_error_file_truncated,
420 . bfd_error_file_too_big,
421 . bfd_error_on_input,
422 . bfd_error_invalid_error_code
428 static bfd_error_type bfd_error
= bfd_error_no_error
;
429 static bfd
*input_bfd
= NULL
;
430 static bfd_error_type input_error
= bfd_error_no_error
;
432 const char *const bfd_errmsgs
[] =
435 N_("System call error"),
436 N_("Invalid bfd target"),
437 N_("File in wrong format"),
438 N_("Archive object file in wrong format"),
439 N_("Invalid operation"),
440 N_("Memory exhausted"),
442 N_("Archive has no index; run ranlib to add one"),
443 N_("No more archived files"),
444 N_("Malformed archive"),
445 N_("DSO missing from command line"),
446 N_("File format not recognized"),
447 N_("File format is ambiguous"),
448 N_("Section has no contents"),
449 N_("Nonrepresentable section on output"),
450 N_("Symbol needs debug section which does not exist"),
452 N_("File truncated"),
454 N_("Error reading %s: %s"),
455 N_("#<Invalid error code>")
463 bfd_error_type bfd_get_error (void);
466 Return the current BFD error condition.
480 void bfd_set_error (bfd_error_type error_tag, ...);
483 Set the BFD error condition to be @var{error_tag}.
484 If @var{error_tag} is bfd_error_on_input, then this function
485 takes two more parameters, the input bfd where the error
486 occurred, and the bfd_error_type error.
490 bfd_set_error (bfd_error_type error_tag
, ...)
492 bfd_error
= error_tag
;
493 if (error_tag
== bfd_error_on_input
)
495 /* This is an error that occurred during bfd_close when
496 writing an archive, but on one of the input files. */
499 va_start (ap
, error_tag
);
500 input_bfd
= va_arg (ap
, bfd
*);
501 input_error
= (bfd_error_type
) va_arg (ap
, int);
502 if (input_error
>= bfd_error_on_input
)
513 const char *bfd_errmsg (bfd_error_type error_tag);
516 Return a string describing the error @var{error_tag}, or
517 the system error if @var{error_tag} is <<bfd_error_system_call>>.
521 bfd_errmsg (bfd_error_type error_tag
)
526 if (error_tag
== bfd_error_on_input
)
529 const char *msg
= bfd_errmsg (input_error
);
531 if (asprintf (&buf
, _(bfd_errmsgs
[error_tag
]), input_bfd
->filename
, msg
)
535 /* Ick, what to do on out of memory? */
539 if (error_tag
== bfd_error_system_call
)
540 return xstrerror (errno
);
542 if (error_tag
> bfd_error_invalid_error_code
)
543 error_tag
= bfd_error_invalid_error_code
; /* sanity check */
545 return _(bfd_errmsgs
[error_tag
]);
553 void bfd_perror (const char *message);
556 Print to the standard error stream a string describing the
557 last BFD error that occurred, or the last system error if
558 the last BFD error was a system call failure. If @var{message}
559 is non-NULL and non-empty, the error string printed is preceded
560 by @var{message}, a colon, and a space. It is followed by a newline.
564 bfd_perror (const char *message
)
567 if (message
== NULL
|| *message
== '\0')
568 fprintf (stderr
, "%s\n", bfd_errmsg (bfd_get_error ()));
570 fprintf (stderr
, "%s: %s\n", message
, bfd_errmsg (bfd_get_error ()));
578 Some BFD functions want to print messages describing the
579 problem. They call a BFD error handler function. This
580 function may be overridden by the program.
582 The BFD error handler acts like printf.
586 .typedef void (*bfd_error_handler_type) (const char *, ...);
590 /* The program name used when printing BFD error messages. */
592 static const char *_bfd_error_program_name
;
594 /* This is the default routine to handle BFD error messages.
595 Like fprintf (stderr, ...), but also handles some extra format specifiers.
597 %A section name from section. For group components, print group name too.
598 %B file name from bfd. For archive components, prints archive too.
600 Note - because these two extra format specifiers require special handling
601 they are scanned for and processed in this function, before calling
602 vfprintf. This means that the *arguments* for these format specifiers
603 must be the first ones in the variable argument list, regardless of where
604 the specifiers appear in the format string. Thus for example calling
605 this function with a format string of:
607 "blah %s blah %A blah %d blah %B"
609 would involve passing the arguments as:
611 "blah %s blah %A blah %d blah %B",
619 _bfd_default_error_handler (const char *fmt
, ...)
623 const char *new_fmt
, *p
;
627 /* PR 4992: Don't interrupt output being sent to stdout. */
630 if (_bfd_error_program_name
!= NULL
)
631 fprintf (stderr
, "%s: ", _bfd_error_program_name
);
633 fprintf (stderr
, "BFD: ");
639 /* Reserve enough space for the existing format string. */
640 avail
-= strlen (fmt
) + 1;
642 _exit (EXIT_FAILURE
);
648 size_t len
, extra
, trim
;
651 if (p
== NULL
|| p
[1] == '\0')
656 memcpy (bufp
, fmt
, len
+ 1);
661 if (p
[1] == 'A' || p
[1] == 'B')
664 memcpy (bufp
, fmt
, len
);
669 /* If we run out of space, tough, you lose your ridiculously
670 long file or section name. It's not safe to try to alloc
671 memory here; We might be printing an out of memory message. */
682 bfd
*abfd
= va_arg (ap
, bfd
*);
685 /* Invoking %B with a null bfd pointer is an internal error. */
687 else if (abfd
->my_archive
)
688 snprintf (bufp
, avail
, "%s(%s)",
689 abfd
->my_archive
->filename
, abfd
->filename
);
691 snprintf (bufp
, avail
, "%s", abfd
->filename
);
695 asection
*sec
= va_arg (ap
, asection
*);
697 const char *group
= NULL
;
698 struct coff_comdat_info
*ci
;
701 /* Invoking %A with a null section pointer is an internal error. */
705 && bfd_get_flavour (abfd
) == bfd_target_elf_flavour
706 && elf_next_in_group (sec
) != NULL
707 && (sec
->flags
& SEC_GROUP
) == 0)
708 group
= elf_group_name (sec
);
709 else if (abfd
!= NULL
710 && bfd_get_flavour (abfd
) == bfd_target_coff_flavour
711 && (ci
= bfd_coff_get_comdat_section (sec
->owner
,
715 snprintf (bufp
, avail
, "%s[%s]", sec
->name
, group
);
717 snprintf (bufp
, avail
, "%s", sec
->name
);
720 avail
= avail
- len
+ 2;
722 /* We need to replace any '%' we printed by "%%".
723 First count how many. */
727 while ((q
= strchr (q
, '%')) != NULL
)
733 /* If there isn't room, trim off the end of the string. */
738 trim
= extra
- avail
;
751 /* Now double all '%' chars, shuffling the string as we go. */
754 while ((q
[extra
] = *q
) != '%')
764 vfprintf (stderr
, new_fmt
, ap
);
767 /* On AIX, putc is implemented as a macro that triggers a -Wunused-value
768 warning, so use the fputc function to avoid it. */
769 fputc ('\n', stderr
);
773 /* This is a function pointer to the routine which should handle BFD
774 error messages. It is called when a BFD routine encounters an
775 error for which it wants to print a message. Going through a
776 function pointer permits a program linked against BFD to intercept
777 the messages and deal with them itself. */
779 bfd_error_handler_type _bfd_error_handler
= _bfd_default_error_handler
;
783 bfd_set_error_handler
786 bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type);
789 Set the BFD error handler function. Returns the previous
793 bfd_error_handler_type
794 bfd_set_error_handler (bfd_error_handler_type pnew
)
796 bfd_error_handler_type pold
;
798 pold
= _bfd_error_handler
;
799 _bfd_error_handler
= pnew
;
805 bfd_set_error_program_name
808 void bfd_set_error_program_name (const char *);
811 Set the program name to use when printing a BFD error. This
812 is printed before the error message followed by a colon and
813 space. The string must not be changed after it is passed to
818 bfd_set_error_program_name (const char *name
)
820 _bfd_error_program_name
= name
;
825 bfd_get_error_handler
828 bfd_error_handler_type bfd_get_error_handler (void);
831 Return the BFD error handler function.
834 bfd_error_handler_type
835 bfd_get_error_handler (void)
837 return _bfd_error_handler
;
844 If BFD finds an internal inconsistency, the bfd assert
845 handler is called with information on the BFD version, BFD
846 source file and line. If this happens, most programs linked
847 against BFD are expected to want to exit with an error, or mark
848 the current BFD operation as failed, so it is recommended to
849 override the default handler, which just calls
850 _bfd_error_handler and continues.
854 .typedef void (*bfd_assert_handler_type) (const char *bfd_formatmsg,
855 . const char *bfd_version,
856 . const char *bfd_file,
861 /* Note the use of bfd_ prefix on the parameter names above: we want to
862 show which one is the message and which is the version by naming the
863 parameters, but avoid polluting the program-using-bfd namespace as
864 the typedef is visible in the exported headers that the program
865 includes. Below, it's just for consistency. */
868 _bfd_default_assert_handler (const char *bfd_formatmsg
,
869 const char *bfd_version
,
870 const char *bfd_file
,
874 (*_bfd_error_handler
) (bfd_formatmsg
, bfd_version
, bfd_file
, bfd_line
);
877 /* Similar to _bfd_error_handler, a program can decide to exit on an
878 internal BFD error. We use a non-variadic type to simplify passing
879 on parameters to other functions, e.g. _bfd_error_handler. */
881 bfd_assert_handler_type _bfd_assert_handler
= _bfd_default_assert_handler
;
885 bfd_set_assert_handler
888 bfd_assert_handler_type bfd_set_assert_handler (bfd_assert_handler_type);
891 Set the BFD assert handler function. Returns the previous
895 bfd_assert_handler_type
896 bfd_set_assert_handler (bfd_assert_handler_type pnew
)
898 bfd_assert_handler_type pold
;
900 pold
= _bfd_assert_handler
;
901 _bfd_assert_handler
= pnew
;
907 bfd_get_assert_handler
910 bfd_assert_handler_type bfd_get_assert_handler (void);
913 Return the BFD assert handler function.
916 bfd_assert_handler_type
917 bfd_get_assert_handler (void)
919 return _bfd_assert_handler
;
924 Miscellaneous, Memory Usage, Error reporting, BFD front end
930 Miscellaneous functions
935 bfd_get_reloc_upper_bound
938 long bfd_get_reloc_upper_bound (bfd *abfd, asection *sect);
941 Return the number of bytes required to store the
942 relocation information associated with section @var{sect}
943 attached to bfd @var{abfd}. If an error occurs, return -1.
948 bfd_get_reloc_upper_bound (bfd
*abfd
, sec_ptr asect
)
950 if (abfd
->format
!= bfd_object
)
952 bfd_set_error (bfd_error_invalid_operation
);
956 return BFD_SEND (abfd
, _get_reloc_upper_bound
, (abfd
, asect
));
961 bfd_canonicalize_reloc
964 long bfd_canonicalize_reloc
965 (bfd *abfd, asection *sec, arelent **loc, asymbol **syms);
968 Call the back end associated with the open BFD
969 @var{abfd} and translate the external form of the relocation
970 information attached to @var{sec} into the internal canonical
971 form. Place the table into memory at @var{loc}, which has
972 been preallocated, usually by a call to
973 <<bfd_get_reloc_upper_bound>>. Returns the number of relocs, or
976 The @var{syms} table is also needed for horrible internal magic
981 bfd_canonicalize_reloc (bfd
*abfd
,
986 if (abfd
->format
!= bfd_object
)
988 bfd_set_error (bfd_error_invalid_operation
);
992 return BFD_SEND (abfd
, _bfd_canonicalize_reloc
,
993 (abfd
, asect
, location
, symbols
));
1002 (bfd *abfd, asection *sec, arelent **rel, unsigned int count);
1005 Set the relocation pointer and count within
1006 section @var{sec} to the values @var{rel} and @var{count}.
1007 The argument @var{abfd} is ignored.
1012 bfd_set_reloc (bfd
*ignore_abfd ATTRIBUTE_UNUSED
,
1017 asect
->orelocation
= location
;
1018 asect
->reloc_count
= count
;
1026 bfd_boolean bfd_set_file_flags (bfd *abfd, flagword flags);
1029 Set the flag word in the BFD @var{abfd} to the value @var{flags}.
1031 Possible errors are:
1032 o <<bfd_error_wrong_format>> - The target bfd was not of object format.
1033 o <<bfd_error_invalid_operation>> - The target bfd was open for reading.
1034 o <<bfd_error_invalid_operation>> -
1035 The flag word contained a bit which was not applicable to the
1036 type of file. E.g., an attempt was made to set the <<D_PAGED>> bit
1037 on a BFD format which does not support demand paging.
1042 bfd_set_file_flags (bfd
*abfd
, flagword flags
)
1044 if (abfd
->format
!= bfd_object
)
1046 bfd_set_error (bfd_error_wrong_format
);
1050 if (bfd_read_p (abfd
))
1052 bfd_set_error (bfd_error_invalid_operation
);
1056 bfd_get_file_flags (abfd
) = flags
;
1057 if ((flags
& bfd_applicable_file_flags (abfd
)) != flags
)
1059 bfd_set_error (bfd_error_invalid_operation
);
1067 bfd_assert (const char *file
, int line
)
1069 (*_bfd_assert_handler
) (_("BFD %s assertion fail %s:%d"),
1070 BFD_VERSION_STRING
, file
, line
);
1073 /* A more or less friendly abort message. In libbfd.h abort is
1074 defined to call this function. */
1077 _bfd_abort (const char *file
, int line
, const char *fn
)
1080 (*_bfd_error_handler
)
1081 (_("BFD %s internal error, aborting at %s line %d in %s\n"),
1082 BFD_VERSION_STRING
, file
, line
, fn
);
1084 (*_bfd_error_handler
)
1085 (_("BFD %s internal error, aborting at %s line %d\n"),
1086 BFD_VERSION_STRING
, file
, line
);
1087 (*_bfd_error_handler
) (_("Please report this bug.\n"));
1088 _exit (EXIT_FAILURE
);
1096 int bfd_get_arch_size (bfd *abfd);
1099 Returns the normalized architecture address size, in bits, as
1100 determined by the object file's format. By normalized, we mean
1101 either 32 or 64. For ELF, this information is included in the
1102 header. Use bfd_arch_bits_per_address for number of bits in
1103 the architecture address.
1106 Returns the arch size in bits if known, <<-1>> otherwise.
1110 bfd_get_arch_size (bfd
*abfd
)
1112 if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1113 return get_elf_backend_data (abfd
)->s
->arch_size
;
1115 return bfd_arch_bits_per_address (abfd
) > 32 ? 64 : 32;
1120 bfd_get_sign_extend_vma
1123 int bfd_get_sign_extend_vma (bfd *abfd);
1126 Indicates if the target architecture "naturally" sign extends
1127 an address. Some architectures implicitly sign extend address
1128 values when they are converted to types larger than the size
1129 of an address. For instance, bfd_get_start_address() will
1130 return an address sign extended to fill a bfd_vma when this is
1134 Returns <<1>> if the target architecture is known to sign
1135 extend addresses, <<0>> if the target architecture is known to
1136 not sign extend addresses, and <<-1>> otherwise.
1140 bfd_get_sign_extend_vma (bfd
*abfd
)
1144 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
1145 return get_elf_backend_data (abfd
)->sign_extend_vma
;
1147 name
= bfd_get_target (abfd
);
1149 /* Return a proper value for DJGPP & PE COFF.
1150 This function is required for DWARF2 support, but there is
1151 no place to store this information in the COFF back end.
1152 Should enough other COFF targets add support for DWARF2,
1153 a place will have to be found. Until then, this hack will do. */
1154 if (CONST_STRNEQ (name
, "coff-go32")
1155 || strcmp (name
, "pe-i386") == 0
1156 || strcmp (name
, "pei-i386") == 0
1157 || strcmp (name
, "pe-x86-64") == 0
1158 || strcmp (name
, "pei-x86-64") == 0
1159 || strcmp (name
, "pe-arm-wince-little") == 0
1160 || strcmp (name
, "pei-arm-wince-little") == 0
1161 || strcmp (name
, "aixcoff-rs6000") == 0)
1164 if (CONST_STRNEQ (name
, "mach-o"))
1167 bfd_set_error (bfd_error_wrong_format
);
1173 bfd_set_start_address
1176 bfd_boolean bfd_set_start_address (bfd *abfd, bfd_vma vma);
1179 Make @var{vma} the entry point of output BFD @var{abfd}.
1182 Returns <<TRUE>> on success, <<FALSE>> otherwise.
1186 bfd_set_start_address (bfd
*abfd
, bfd_vma vma
)
1188 abfd
->start_address
= vma
;
1197 unsigned int bfd_get_gp_size (bfd *abfd);
1200 Return the maximum size of objects to be optimized using the GP
1201 register under MIPS ECOFF. This is typically set by the <<-G>>
1202 argument to the compiler, assembler or linker.
1206 bfd_get_gp_size (bfd
*abfd
)
1208 if (abfd
->format
== bfd_object
)
1210 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1211 return ecoff_data (abfd
)->gp_size
;
1212 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1213 return elf_gp_size (abfd
);
1223 void bfd_set_gp_size (bfd *abfd, unsigned int i);
1226 Set the maximum size of objects to be optimized using the GP
1227 register under ECOFF or MIPS ELF. This is typically set by
1228 the <<-G>> argument to the compiler, assembler or linker.
1232 bfd_set_gp_size (bfd
*abfd
, unsigned int i
)
1234 /* Don't try to set GP size on an archive or core file! */
1235 if (abfd
->format
!= bfd_object
)
1238 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1239 ecoff_data (abfd
)->gp_size
= i
;
1240 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1241 elf_gp_size (abfd
) = i
;
1244 /* Get the GP value. This is an internal function used by some of the
1245 relocation special_function routines on targets which support a GP
1249 _bfd_get_gp_value (bfd
*abfd
)
1253 if (abfd
->format
!= bfd_object
)
1256 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1257 return ecoff_data (abfd
)->gp
;
1258 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1259 return elf_gp (abfd
);
1264 /* Set the GP value. */
1267 _bfd_set_gp_value (bfd
*abfd
, bfd_vma v
)
1271 if (abfd
->format
!= bfd_object
)
1274 if (abfd
->xvec
->flavour
== bfd_target_ecoff_flavour
)
1275 ecoff_data (abfd
)->gp
= v
;
1276 else if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1285 bfd_vma bfd_scan_vma (const char *string, const char **end, int base);
1288 Convert, like <<strtoul>>, a numerical expression
1289 @var{string} into a <<bfd_vma>> integer, and return that integer.
1290 (Though without as many bells and whistles as <<strtoul>>.)
1291 The expression is assumed to be unsigned (i.e., positive).
1292 If given a @var{base}, it is used as the base for conversion.
1293 A base of 0 causes the function to interpret the string
1294 in hex if a leading "0x" or "0X" is found, otherwise
1295 in octal if a leading zero is found, otherwise in decimal.
1297 If the value would overflow, the maximum <<bfd_vma>> value is
1302 bfd_scan_vma (const char *string
, const char **end
, int base
)
1306 unsigned int cutlim
;
1309 /* Let the host do it if possible. */
1310 if (sizeof (bfd_vma
) <= sizeof (unsigned long))
1311 return strtoul (string
, (char **) end
, base
);
1313 #ifdef HAVE_STRTOULL
1314 if (sizeof (bfd_vma
) <= sizeof (unsigned long long))
1315 return strtoull (string
, (char **) end
, base
);
1320 if (string
[0] == '0')
1322 if ((string
[1] == 'x') || (string
[1] == 'X'))
1329 if ((base
< 2) || (base
> 36))
1334 && (string
[1] == 'x' || string
[1] == 'X')
1335 && ISXDIGIT (string
[2]))
1340 cutoff
= (~ (bfd_vma
) 0) / (bfd_vma
) base
;
1341 cutlim
= (~ (bfd_vma
) 0) % (bfd_vma
) base
;
1349 if (ISDIGIT (digit
))
1350 digit
= digit
- '0';
1351 else if (ISALPHA (digit
))
1352 digit
= TOUPPER (digit
) - 'A' + 10;
1355 if (digit
>= (unsigned int) base
)
1357 if (value
> cutoff
|| (value
== cutoff
&& digit
> cutlim
))
1359 value
= value
* base
+ digit
;
1364 value
= ~ (bfd_vma
) 0;
1374 bfd_copy_private_header_data
1377 bfd_boolean bfd_copy_private_header_data (bfd *ibfd, bfd *obfd);
1380 Copy private BFD header information from the BFD @var{ibfd} to the
1381 the BFD @var{obfd}. This copies information that may require
1382 sections to exist, but does not require symbol tables. Return
1383 <<true>> on success, <<false>> on error.
1384 Possible error returns are:
1386 o <<bfd_error_no_memory>> -
1387 Not enough memory exists to create private data for @var{obfd}.
1389 .#define bfd_copy_private_header_data(ibfd, obfd) \
1390 . BFD_SEND (obfd, _bfd_copy_private_header_data, \
1397 bfd_copy_private_bfd_data
1400 bfd_boolean bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd);
1403 Copy private BFD information from the BFD @var{ibfd} to the
1404 the BFD @var{obfd}. Return <<TRUE>> on success, <<FALSE>> on error.
1405 Possible error returns are:
1407 o <<bfd_error_no_memory>> -
1408 Not enough memory exists to create private data for @var{obfd}.
1410 .#define bfd_copy_private_bfd_data(ibfd, obfd) \
1411 . BFD_SEND (obfd, _bfd_copy_private_bfd_data, \
1418 bfd_merge_private_bfd_data
1421 bfd_boolean bfd_merge_private_bfd_data (bfd *ibfd, bfd *obfd);
1424 Merge private BFD information from the BFD @var{ibfd} to the
1425 the output file BFD @var{obfd} when linking. Return <<TRUE>>
1426 on success, <<FALSE>> on error. Possible error returns are:
1428 o <<bfd_error_no_memory>> -
1429 Not enough memory exists to create private data for @var{obfd}.
1431 .#define bfd_merge_private_bfd_data(ibfd, obfd) \
1432 . BFD_SEND (obfd, _bfd_merge_private_bfd_data, \
1439 bfd_set_private_flags
1442 bfd_boolean bfd_set_private_flags (bfd *abfd, flagword flags);
1445 Set private BFD flag information in the BFD @var{abfd}.
1446 Return <<TRUE>> on success, <<FALSE>> on error. Possible error
1449 o <<bfd_error_no_memory>> -
1450 Not enough memory exists to create private data for @var{obfd}.
1452 .#define bfd_set_private_flags(abfd, flags) \
1453 . BFD_SEND (abfd, _bfd_set_private_flags, (abfd, flags))
1462 The following functions exist but have not yet been documented.
1464 .#define bfd_sizeof_headers(abfd, info) \
1465 . BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, info))
1467 .#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
1468 . BFD_SEND (abfd, _bfd_find_nearest_line, \
1469 . (abfd, syms, sec, off, file, func, line, NULL))
1471 .#define bfd_find_nearest_line_discriminator(abfd, sec, syms, off, file, func, \
1473 . BFD_SEND (abfd, _bfd_find_nearest_line, \
1474 . (abfd, syms, sec, off, file, func, line, disc))
1476 .#define bfd_find_line(abfd, syms, sym, file, line) \
1477 . BFD_SEND (abfd, _bfd_find_line, \
1478 . (abfd, syms, sym, file, line))
1480 .#define bfd_find_inliner_info(abfd, file, func, line) \
1481 . BFD_SEND (abfd, _bfd_find_inliner_info, \
1482 . (abfd, file, func, line))
1484 .#define bfd_debug_info_start(abfd) \
1485 . BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
1487 .#define bfd_debug_info_end(abfd) \
1488 . BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
1490 .#define bfd_debug_info_accumulate(abfd, section) \
1491 . BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
1493 .#define bfd_stat_arch_elt(abfd, stat) \
1494 . BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
1496 .#define bfd_update_armap_timestamp(abfd) \
1497 . BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))
1499 .#define bfd_set_arch_mach(abfd, arch, mach)\
1500 . BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
1502 .#define bfd_relax_section(abfd, section, link_info, again) \
1503 . BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
1505 .#define bfd_gc_sections(abfd, link_info) \
1506 . BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info))
1508 .#define bfd_lookup_section_flags(link_info, flag_info, section) \
1509 . BFD_SEND (abfd, _bfd_lookup_section_flags, (link_info, flag_info, section))
1511 .#define bfd_merge_sections(abfd, link_info) \
1512 . BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info))
1514 .#define bfd_is_group_section(abfd, sec) \
1515 . BFD_SEND (abfd, _bfd_is_group_section, (abfd, sec))
1517 .#define bfd_discard_group(abfd, sec) \
1518 . BFD_SEND (abfd, _bfd_discard_group, (abfd, sec))
1520 .#define bfd_link_hash_table_create(abfd) \
1521 . BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
1523 .#define bfd_link_add_symbols(abfd, info) \
1524 . BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
1526 .#define bfd_link_just_syms(abfd, sec, info) \
1527 . BFD_SEND (abfd, _bfd_link_just_syms, (sec, info))
1529 .#define bfd_final_link(abfd, info) \
1530 . BFD_SEND (abfd, _bfd_final_link, (abfd, info))
1532 .#define bfd_free_cached_info(abfd) \
1533 . BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
1535 .#define bfd_get_dynamic_symtab_upper_bound(abfd) \
1536 . BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
1538 .#define bfd_print_private_bfd_data(abfd, file)\
1539 . BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file))
1541 .#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
1542 . BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
1544 .#define bfd_get_synthetic_symtab(abfd, count, syms, dyncount, dynsyms, ret) \
1545 . BFD_SEND (abfd, _bfd_get_synthetic_symtab, (abfd, count, syms, \
1546 . dyncount, dynsyms, ret))
1548 .#define bfd_get_dynamic_reloc_upper_bound(abfd) \
1549 . BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
1551 .#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
1552 . BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
1554 .extern bfd_byte *bfd_get_relocated_section_contents
1555 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *,
1556 . bfd_boolean, asymbol **);
1562 bfd_get_relocated_section_contents (bfd
*abfd
,
1563 struct bfd_link_info
*link_info
,
1564 struct bfd_link_order
*link_order
,
1566 bfd_boolean relocatable
,
1570 bfd_byte
*(*fn
) (bfd
*, struct bfd_link_info
*, struct bfd_link_order
*,
1571 bfd_byte
*, bfd_boolean
, asymbol
**);
1573 if (link_order
->type
== bfd_indirect_link_order
)
1575 abfd2
= link_order
->u
.indirect
.section
->owner
;
1582 fn
= abfd2
->xvec
->_bfd_get_relocated_section_contents
;
1584 return (*fn
) (abfd
, link_info
, link_order
, data
, relocatable
, symbols
);
1587 /* Record information about an ELF program header. */
1590 bfd_record_phdr (bfd
*abfd
,
1592 bfd_boolean flags_valid
,
1594 bfd_boolean at_valid
,
1596 bfd_boolean includes_filehdr
,
1597 bfd_boolean includes_phdrs
,
1601 struct elf_segment_map
*m
, **pm
;
1604 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1607 amt
= sizeof (struct elf_segment_map
);
1608 amt
+= ((bfd_size_type
) count
- 1) * sizeof (asection
*);
1609 m
= (struct elf_segment_map
*) bfd_zalloc (abfd
, amt
);
1616 m
->p_flags_valid
= flags_valid
;
1617 m
->p_paddr_valid
= at_valid
;
1618 m
->includes_filehdr
= includes_filehdr
;
1619 m
->includes_phdrs
= includes_phdrs
;
1622 memcpy (m
->sections
, secs
, count
* sizeof (asection
*));
1624 for (pm
= &elf_seg_map (abfd
); *pm
!= NULL
; pm
= &(*pm
)->next
)
1632 /* Return true iff this target is 32-bit. */
1637 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
1639 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1640 return bed
->s
->elfclass
== ELFCLASS32
;
1643 /* For non-ELF targets, use architecture information. */
1644 return bfd_arch_bits_per_address (abfd
) <= 32;
1648 /* bfd_sprintf_vma and bfd_fprintf_vma display an address in the
1649 target's address size. */
1652 bfd_sprintf_vma (bfd
*abfd ATTRIBUTE_UNUSED
, char *buf
, bfd_vma value
)
1657 sprintf (buf
, "%08lx", (unsigned long) value
& 0xffffffff);
1661 sprintf_vma (buf
, value
);
1665 bfd_fprintf_vma (bfd
*abfd ATTRIBUTE_UNUSED
, void *stream
, bfd_vma value
)
1670 fprintf ((FILE *) stream
, "%08lx", (unsigned long) value
& 0xffffffff);
1674 fprintf_vma ((FILE *) stream
, value
);
1682 bfd_boolean bfd_alt_mach_code (bfd *abfd, int alternative);
1686 When more than one machine code number is available for the
1687 same machine type, this function can be used to switch between
1688 the preferred one (alternative == 0) and any others. Currently,
1689 only ELF supports this feature, with up to two alternate
1694 bfd_alt_mach_code (bfd
*abfd
, int alternative
)
1696 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
1700 switch (alternative
)
1703 code
= get_elf_backend_data (abfd
)->elf_machine_code
;
1707 code
= get_elf_backend_data (abfd
)->elf_machine_alt1
;
1713 code
= get_elf_backend_data (abfd
)->elf_machine_alt2
;
1722 elf_elfheader (abfd
)->e_machine
= code
;
1732 bfd_emul_get_maxpagesize
1735 bfd_vma bfd_emul_get_maxpagesize (const char *);
1738 Returns the maximum page size, in bytes, as determined by
1742 Returns the maximum page size in bytes for ELF, 0 otherwise.
1746 bfd_emul_get_maxpagesize (const char *emul
)
1748 const bfd_target
*target
;
1750 target
= bfd_find_target (emul
, NULL
);
1752 && target
->flavour
== bfd_target_elf_flavour
)
1753 return xvec_get_elf_backend_data (target
)->maxpagesize
;
1759 bfd_elf_set_pagesize (const bfd_target
*target
, bfd_vma size
,
1760 int offset
, const bfd_target
*orig_target
)
1762 if (target
->flavour
== bfd_target_elf_flavour
)
1764 const struct elf_backend_data
*bed
;
1766 bed
= xvec_get_elf_backend_data (target
);
1767 *((bfd_vma
*) ((char *) bed
+ offset
)) = size
;
1770 if (target
->alternative_target
1771 && target
->alternative_target
!= orig_target
)
1772 bfd_elf_set_pagesize (target
->alternative_target
, size
, offset
,
1778 bfd_emul_set_maxpagesize
1781 void bfd_emul_set_maxpagesize (const char *, bfd_vma);
1784 For ELF, set the maximum page size for the emulation. It is
1785 a no-op for other formats.
1790 bfd_emul_set_maxpagesize (const char *emul
, bfd_vma size
)
1792 const bfd_target
*target
;
1794 target
= bfd_find_target (emul
, NULL
);
1796 bfd_elf_set_pagesize (target
, size
,
1797 offsetof (struct elf_backend_data
,
1798 maxpagesize
), target
);
1803 bfd_emul_get_commonpagesize
1806 bfd_vma bfd_emul_get_commonpagesize (const char *);
1809 Returns the common page size, in bytes, as determined by
1813 Returns the common page size in bytes for ELF, 0 otherwise.
1817 bfd_emul_get_commonpagesize (const char *emul
)
1819 const bfd_target
*target
;
1821 target
= bfd_find_target (emul
, NULL
);
1823 && target
->flavour
== bfd_target_elf_flavour
)
1824 return xvec_get_elf_backend_data (target
)->commonpagesize
;
1831 bfd_emul_set_commonpagesize
1834 void bfd_emul_set_commonpagesize (const char *, bfd_vma);
1837 For ELF, set the common page size for the emulation. It is
1838 a no-op for other formats.
1843 bfd_emul_set_commonpagesize (const char *emul
, bfd_vma size
)
1845 const bfd_target
*target
;
1847 target
= bfd_find_target (emul
, NULL
);
1849 bfd_elf_set_pagesize (target
, size
,
1850 offsetof (struct elf_backend_data
,
1851 commonpagesize
), target
);
1859 char *bfd_demangle (bfd *, const char *, int);
1862 Wrapper around cplus_demangle. Strips leading underscores and
1863 other such chars that would otherwise confuse the demangler.
1864 If passed a g++ v3 ABI mangled name, returns a buffer allocated
1865 with malloc holding the demangled name. Returns NULL otherwise
1866 and on memory alloc failure.
1870 bfd_demangle (bfd
*abfd
, const char *name
, int options
)
1873 const char *pre
, *suf
;
1875 bfd_boolean skip_lead
;
1877 skip_lead
= (abfd
!= NULL
1879 && bfd_get_symbol_leading_char (abfd
) == *name
);
1883 /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF
1884 or the MS PE format. These formats have a number of leading '.'s
1885 on at least some symbols, so we remove all dots to avoid
1886 confusing the demangler. */
1888 while (*name
== '.' || *name
== '$')
1890 pre_len
= name
- pre
;
1892 /* Strip off @plt and suchlike too. */
1894 suf
= strchr (name
, '@');
1897 alloc
= (char *) bfd_malloc (suf
- name
+ 1);
1900 memcpy (alloc
, name
, suf
- name
);
1901 alloc
[suf
- name
] = '\0';
1905 res
= cplus_demangle (name
, options
);
1914 size_t len
= strlen (pre
) + 1;
1915 alloc
= (char *) bfd_malloc (len
);
1918 memcpy (alloc
, pre
, len
);
1924 /* Put back any prefix or suffix. */
1925 if (pre_len
!= 0 || suf
!= NULL
)
1934 suf_len
= strlen (suf
) + 1;
1935 final
= (char *) bfd_malloc (pre_len
+ len
+ suf_len
);
1938 memcpy (final
, pre
, pre_len
);
1939 memcpy (final
+ pre_len
, res
, len
);
1940 memcpy (final
+ pre_len
+ len
, suf
, suf_len
);
1951 bfd_update_compression_header
1954 void bfd_update_compression_header
1955 (bfd *abfd, bfd_byte *contents, asection *sec);
1958 Set the compression header at CONTENTS of SEC in ABFD and update
1959 elf_section_flags for compression.
1963 bfd_update_compression_header (bfd
*abfd
, bfd_byte
*contents
,
1966 if ((abfd
->flags
& BFD_COMPRESS
) != 0)
1968 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
1970 if ((abfd
->flags
& BFD_COMPRESS_GABI
) != 0)
1972 const struct elf_backend_data
*bed
1973 = get_elf_backend_data (abfd
);
1975 /* Set the SHF_COMPRESSED bit. */
1976 elf_section_flags (sec
) |= SHF_COMPRESSED
;
1978 if (bed
->s
->elfclass
== ELFCLASS32
)
1980 Elf32_External_Chdr
*echdr
1981 = (Elf32_External_Chdr
*) contents
;
1982 bfd_put_32 (abfd
, ELFCOMPRESS_ZLIB
, &echdr
->ch_type
);
1983 bfd_put_32 (abfd
, sec
->size
, &echdr
->ch_size
);
1984 bfd_put_32 (abfd
, 1 << sec
->alignment_power
,
1985 &echdr
->ch_addralign
);
1989 Elf64_External_Chdr
*echdr
1990 = (Elf64_External_Chdr
*) contents
;
1991 bfd_put_64 (abfd
, ELFCOMPRESS_ZLIB
, &echdr
->ch_type
);
1992 bfd_put_64 (abfd
, sec
->size
, &echdr
->ch_size
);
1993 bfd_put_64 (abfd
, 1 << sec
->alignment_power
,
1994 &echdr
->ch_addralign
);
1998 /* Clear the SHF_COMPRESSED bit. */
1999 elf_section_flags (sec
) &= ~SHF_COMPRESSED
;
2008 bfd_check_compression_header
2011 bfd_boolean bfd_check_compression_header
2012 (bfd *abfd, bfd_byte *contents, asection *sec,
2013 bfd_size_type uncompressed_size);
2016 Check the compression header at CONTENTS of SEC in ABFD with
2017 the uncompressed size UNCOMPRESSED_SIZE.
2020 Return TRUE if the compression header is valid.
2024 bfd_check_compression_header (bfd
*abfd
, bfd_byte
*contents
,
2026 bfd_size_type uncompressed_size
)
2028 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
2029 && (elf_section_flags (sec
) & SHF_COMPRESSED
) != 0)
2031 Elf_Internal_Chdr chdr
;
2032 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
2033 if (bed
->s
->elfclass
== ELFCLASS32
)
2035 Elf32_External_Chdr
*echdr
= (Elf32_External_Chdr
*) contents
;
2036 chdr
.ch_type
= bfd_get_32 (abfd
, &echdr
->ch_type
);
2037 chdr
.ch_size
= bfd_get_32 (abfd
, &echdr
->ch_size
);
2038 chdr
.ch_addralign
= bfd_get_32 (abfd
, &echdr
->ch_addralign
);
2042 Elf64_External_Chdr
*echdr
= (Elf64_External_Chdr
*) contents
;
2043 chdr
.ch_type
= bfd_get_64 (abfd
, &echdr
->ch_type
);
2044 chdr
.ch_size
= bfd_get_64 (abfd
, &echdr
->ch_size
);
2045 chdr
.ch_addralign
= bfd_get_64 (abfd
, &echdr
->ch_addralign
);
2047 return (chdr
.ch_type
== ELFCOMPRESS_ZLIB
2048 && chdr
.ch_size
== uncompressed_size
2049 && chdr
.ch_addralign
== 1U << sec
->alignment_power
);
2057 bfd_get_compression_header_size
2060 int bfd_get_compression_header_size (bfd *abfd, asection *sec);
2063 Return the size of the compression header of SEC in ABFD.
2066 Return the size of the compression header in bytes.
2070 bfd_get_compression_header_size (bfd
*abfd
, asection
*sec
)
2072 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
2076 if (!(abfd
->flags
& BFD_COMPRESS_GABI
))
2079 else if (!(elf_section_flags (sec
) & SHF_COMPRESSED
))
2082 if (get_elf_backend_data (abfd
)->s
->elfclass
== ELFCLASS32
)
2083 return sizeof (Elf32_External_Chdr
);
2085 return sizeof (Elf64_External_Chdr
);