1 /* Support for the generic parts of most COFF variants, for BFD.
2 Copyright (C) 1990-2020 Free Software Foundation, Inc.
3 Written by Cygnus Support.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
22 /* Most of this hacked by Steve Chamberlain,
28 BFD supports a number of different flavours of coff format.
29 The major differences between formats are the sizes and
30 alignments of fields in structures on disk, and the occasional
33 Coff in all its varieties is implemented with a few common
34 files and a number of implementation specific files. For
35 example, the i386 coff format is implemented in the file
36 @file{coff-i386.c}. This file @code{#include}s
37 @file{coff/i386.h} which defines the external structure of the
38 coff format for the i386, and @file{coff/internal.h} which
39 defines the internal structure. @file{coff-i386.c} also
40 defines the relocations used by the i386 coff format
44 Porting to a new version of coff
46 The recommended method is to select from the existing
47 implementations the version of coff which is most like the one
48 you want to use. For example, we'll say that i386 coff is
49 the one you select, and that your coff flavour is called foo.
50 Copy @file{i386coff.c} to @file{foocoff.c}, copy
51 @file{../include/coff/i386.h} to @file{../include/coff/foo.h},
52 and add the lines to @file{targets.c} and @file{Makefile.in}
53 so that your new back end is used. Alter the shapes of the
54 structures in @file{../include/coff/foo.h} so that they match
55 what you need. You will probably also have to add
56 @code{#ifdef}s to the code in @file{coff/internal.h} and
57 @file{coffcode.h} if your version of coff is too wild.
59 You can verify that your new BFD backend works quite simply by
60 building @file{objdump} from the @file{binutils} directory,
61 and making sure that its version of what's going on and your
62 host system's idea (assuming it has the pretty standard coff
63 dump utility, usually called @code{att-dump} or just
64 @code{dump}) are the same. Then clean up your code, and send
65 what you've done to Cygnus. Then your stuff will be in the
66 next release, and you won't have to keep integrating it.
69 How the coff backend works
74 The Coff backend is split into generic routines that are
75 applicable to any Coff target and routines that are specific
76 to a particular target. The target-specific routines are
77 further split into ones which are basically the same for all
78 Coff targets except that they use the external symbol format
79 or use different values for certain constants.
81 The generic routines are in @file{coffgen.c}. These routines
82 work for any Coff target. They use some hooks into the target
83 specific code; the hooks are in a @code{bfd_coff_backend_data}
84 structure, one of which exists for each target.
86 The essentially similar target-specific routines are in
87 @file{coffcode.h}. This header file includes executable C code.
88 The various Coff targets first include the appropriate Coff
89 header file, make any special defines that are needed, and
90 then include @file{coffcode.h}.
92 Some of the Coff targets then also have additional routines in
93 the target source file itself.
96 Coff long section names
98 In the standard Coff object format, section names are limited to
99 the eight bytes available in the @code{s_name} field of the
100 @code{SCNHDR} section header structure. The format requires the
101 field to be NUL-padded, but not necessarily NUL-terminated, so
102 the longest section names permitted are a full eight characters.
104 The Microsoft PE variants of the Coff object file format add
105 an extension to support the use of long section names. This
106 extension is defined in section 4 of the Microsoft PE/COFF
107 specification (rev 8.1). If a section name is too long to fit
108 into the section header's @code{s_name} field, it is instead
109 placed into the string table, and the @code{s_name} field is
110 filled with a slash ("/") followed by the ASCII decimal
111 representation of the offset of the full name relative to the
114 Note that this implies that the extension can only be used in object
115 files, as executables do not contain a string table. The standard
116 specifies that long section names from objects emitted into executable
117 images are to be truncated.
119 However, as a GNU extension, BFD can generate executable images
120 that contain a string table and long section names. This
121 would appear to be technically valid, as the standard only says
122 that Coff debugging information is deprecated, not forbidden,
123 and in practice it works, although some tools that parse PE files
124 expecting the MS standard format may become confused; @file{PEview} is
127 The functionality is supported in BFD by code implemented under
128 the control of the macro @code{COFF_LONG_SECTION_NAMES}. If not
129 defined, the format does not support long section names in any way.
130 If defined, it is used to initialise a flag,
131 @code{_bfd_coff_long_section_names}, and a hook function pointer,
132 @code{_bfd_coff_set_long_section_names}, in the Coff backend data
133 structure. The flag controls the generation of long section names
134 in output BFDs at runtime; if it is false, as it will be by default
135 when generating an executable image, long section names are truncated;
136 if true, the long section names extension is employed. The hook
137 points to a function that allows the value of the flag to be altered
138 at runtime, on formats that support long section names at all; on
139 other formats it points to a stub that returns an error indication.
141 With input BFDs, the flag is set according to whether any long section
142 names are detected while reading the section headers. For a completely
143 new BFD, the flag is set to the default for the target format. This
144 information can be used by a client of the BFD library when deciding
145 what output format to generate, and means that a BFD that is opened
146 for read and subsequently converted to a writeable BFD and modified
147 in-place will retain whatever format it had on input.
149 If @code{COFF_LONG_SECTION_NAMES} is simply defined (blank), or is
150 defined to the value "1", then long section names are enabled by
151 default; if it is defined to the value zero, they are disabled by
152 default (but still accepted in input BFDs). The header @file{coffcode.h}
153 defines a macro, @code{COFF_DEFAULT_LONG_SECTION_NAMES}, which is
154 used in the backends to initialise the backend data structure fields
155 appropriately; see the comments for further detail.
160 Each flavour of coff supported in BFD has its own header file
161 describing the external layout of the structures. There is also
162 an internal description of the coff layout, in
163 @file{coff/internal.h}. A major function of the
164 coff backend is swapping the bytes and twiddling the bits to
165 translate the external form of the structures into the normal
166 internal form. This is all performed in the
167 @code{bfd_swap}_@i{thing}_@i{direction} routines. Some
168 elements are different sizes between different versions of
169 coff; it is the duty of the coff version specific include file
170 to override the definitions of various packing routines in
171 @file{coffcode.h}. E.g., the size of line number entry in coff is
172 sometimes 16 bits, and sometimes 32 bits. @code{#define}ing
173 @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the
174 correct one. No doubt, some day someone will find a version of
175 coff which has a varying field size not catered to at the
176 moment. To port BFD, that person will have to add more @code{#defines}.
177 Three of the bit twiddling routines are exported to
178 @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in}
179 and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol
180 table on its own, but uses BFD to fix things up. More of the
181 bit twiddlers are exported for @code{gas};
182 @code{coff_swap_aux_out}, @code{coff_swap_sym_out},
183 @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out},
184 @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out},
185 @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track
186 of all the symbol table and reloc drudgery itself, thereby
187 saving the internal BFD overhead, but uses BFD to swap things
188 on the way out, making cross ports much safer. Doing so also
189 allows BFD (and thus the linker) to use the same header files
190 as @code{gas}, which makes one avenue to disaster disappear.
195 The simple canonical form for symbols used by BFD is not rich
196 enough to keep all the information available in a coff symbol
197 table. The back end gets around this problem by keeping the original
198 symbol table around, "behind the scenes".
200 When a symbol table is requested (through a call to
201 @code{bfd_canonicalize_symtab}), a request gets through to
202 @code{coff_get_normalized_symtab}. This reads the symbol table from
203 the coff file and swaps all the structures inside into the
204 internal form. It also fixes up all the pointers in the table
205 (represented in the file by offsets from the first symbol in
206 the table) into physical pointers to elements in the new
207 internal table. This involves some work since the meanings of
208 fields change depending upon context: a field that is a
209 pointer to another structure in the symbol table at one moment
210 may be the size in bytes of a structure at the next. Another
211 pass is made over the table. All symbols which mark file names
212 (<<C_FILE>> symbols) are modified so that the internal
213 string points to the value in the auxent (the real filename)
214 rather than the normal text associated with the symbol
217 At this time the symbol names are moved around. Coff stores
218 all symbols less than nine characters long physically
219 within the symbol table; longer strings are kept at the end of
220 the file in the string table. This pass moves all strings
221 into memory and replaces them with pointers to the strings.
223 The symbol table is massaged once again, this time to create
224 the canonical table used by the BFD application. Each symbol
225 is inspected in turn, and a decision made (using the
226 @code{sclass} field) about the various flags to set in the
227 @code{asymbol}. @xref{Symbols}. The generated canonical table
228 shares strings with the hidden internal symbol table.
230 Any linenumbers are read from the coff file too, and attached
231 to the symbols which own the functions the linenumbers belong to.
236 Writing a symbol to a coff file which didn't come from a coff
237 file will lose any debugging information. The @code{asymbol}
238 structure remembers the BFD from which the symbol was taken, and on
239 output the back end makes sure that the same destination target as
240 source target is present.
242 When the symbols have come from a coff file then all the
243 debugging information is preserved.
245 Symbol tables are provided for writing to the back end in a
246 vector of pointers to pointers. This allows applications like
247 the linker to accumulate and output large symbol tables
248 without having to do too much byte copying.
250 This function runs through the provided symbol table and
251 patches each symbol marked as a file place holder
252 (@code{C_FILE}) to point to the next file place holder in the
253 list. It also marks each @code{offset} field in the list with
254 the offset from the first symbol of the current symbol.
256 Another function of this procedure is to turn the canonical
257 value form of BFD into the form used by coff. Internally, BFD
258 expects symbol values to be offsets from a section base; so a
259 symbol physically at 0x120, but in a section starting at
260 0x100, would have the value 0x20. Coff expects symbols to
261 contain their final value, so symbols have their values
262 changed at this point to reflect their sum with their owning
263 section. This transformation uses the
264 <<output_section>> field of the @code{asymbol}'s
265 @code{asection} @xref{Sections}.
267 o <<coff_mangle_symbols>>
269 This routine runs though the provided symbol table and uses
270 the offsets generated by the previous pass and the pointers
271 generated when the symbol table was read in to create the
272 structured hierarchy required by coff. It changes each pointer
273 to a symbol into the index into the symbol table of the asymbol.
275 o <<coff_write_symbols>>
277 This routine runs through the symbol table and patches up the
278 symbols from their internal form into the coff way, calls the
279 bit twiddlers, and writes out the table to the file.
288 The hidden information for an <<asymbol>> is described in a
289 <<combined_entry_type>>:
293 .typedef struct coff_ptr_struct
295 . {* Remembers the offset from the first symbol in the file for
296 . this symbol. Generated by coff_renumber_symbols. *}
297 . unsigned int offset;
299 . {* Should the value of this symbol be renumbered. Used for
300 . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *}
301 . unsigned int fix_value : 1;
303 . {* Should the tag field of this symbol be renumbered.
304 . Created by coff_pointerize_aux. *}
305 . unsigned int fix_tag : 1;
307 . {* Should the endidx field of this symbol be renumbered.
308 . Created by coff_pointerize_aux. *}
309 . unsigned int fix_end : 1;
311 . {* Should the x_csect.x_scnlen field be renumbered.
312 . Created by coff_pointerize_aux. *}
313 . unsigned int fix_scnlen : 1;
315 . {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the
316 . index into the line number entries. Set by coff_slurp_symbol_table. *}
317 . unsigned int fix_line : 1;
319 . {* The container for the symbol structure as read and translated
323 . union internal_auxent auxent;
324 . struct internal_syment syment;
327 . {* Selector for the union above. *}
328 . bfd_boolean is_sym;
329 .} combined_entry_type;
332 .{* Each canonical asymbol really looks like this: *}
334 .typedef struct coff_symbol_struct
336 . {* The actual symbol which the rest of BFD works with *}
339 . {* A pointer to the hidden information for this symbol *}
340 . combined_entry_type *native;
342 . {* A pointer to the linenumber information for this symbol *}
343 . struct lineno_cache_entry *lineno;
345 . {* Have the line numbers been relocated yet ? *}
346 . bfd_boolean done_lineno;
351 #include "libiberty.h"
356 #include "coffswap.h"
359 #define STRING_SIZE_SIZE 4
361 #define DOT_DEBUG ".debug"
362 #define DOT_ZDEBUG ".zdebug"
363 #define GNU_LINKONCE_WI ".gnu.linkonce.wi."
364 #define GNU_LINKONCE_WT ".gnu.linkonce.wt."
365 #define DOT_RELOC ".reloc"
367 #if defined (COFF_LONG_SECTION_NAMES)
368 /* Needed to expand the inputs to BLANKOR1TOODD. */
369 #define COFFLONGSECTIONCATHELPER(x,y) x ## y
370 /* If the input macro Y is blank or '1', return an odd number; if it is
371 '0', return an even number. Result undefined in all other cases. */
372 #define BLANKOR1TOODD(y) COFFLONGSECTIONCATHELPER(1,y)
373 /* Defined to numerical 0 or 1 according to whether generation of long
374 section names is disabled or enabled by default. */
375 #define COFF_ENABLE_LONG_SECTION_NAMES (BLANKOR1TOODD(COFF_LONG_SECTION_NAMES) & 1)
376 /* Where long section names are supported, we allow them to be enabled
377 and disabled at runtime, so select an appropriate hook function for
378 _bfd_coff_set_long_section_names. */
379 #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_allowed
380 #else /* !defined (COFF_LONG_SECTION_NAMES) */
381 /* If long section names are not supported, this stub disallows any
382 attempt to enable them at run-time. */
383 #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_disallowed
384 #endif /* defined (COFF_LONG_SECTION_NAMES) */
386 /* Define a macro that can be used to initialise both the fields relating
387 to long section names in the backend data struct simultaneously. */
388 #if COFF_ENABLE_LONG_SECTION_NAMES
389 #define COFF_DEFAULT_LONG_SECTION_NAMES (TRUE), COFF_LONG_SECTION_NAMES_SETTER
390 #else /* !COFF_ENABLE_LONG_SECTION_NAMES */
391 #define COFF_DEFAULT_LONG_SECTION_NAMES (FALSE), COFF_LONG_SECTION_NAMES_SETTER
392 #endif /* COFF_ENABLE_LONG_SECTION_NAMES */
394 #if defined (COFF_LONG_SECTION_NAMES)
395 static bfd_boolean bfd_coff_set_long_section_names_allowed
397 #else /* !defined (COFF_LONG_SECTION_NAMES) */
398 static bfd_boolean bfd_coff_set_long_section_names_disallowed
400 #endif /* defined (COFF_LONG_SECTION_NAMES) */
401 static long sec_to_styp_flags
402 (const char *, flagword
);
403 static bfd_boolean styp_to_sec_flags
404 (bfd
*, void *, const char *, asection
*, flagword
*);
405 static bfd_boolean coff_bad_format_hook
407 static void coff_set_custom_section_alignment
408 (bfd
*, asection
*, const struct coff_section_alignment_entry
*,
410 static bfd_boolean coff_new_section_hook
412 static bfd_boolean coff_set_arch_mach_hook
414 static bfd_boolean coff_write_relocs
416 static bfd_boolean coff_set_flags
417 (bfd
*, unsigned int *, unsigned short *);
418 static bfd_boolean coff_set_arch_mach
419 (bfd
*, enum bfd_architecture
, unsigned long) ATTRIBUTE_UNUSED
;
420 static bfd_boolean coff_compute_section_file_positions
422 static bfd_boolean coff_write_object_contents
423 (bfd
*) ATTRIBUTE_UNUSED
;
424 static bfd_boolean coff_set_section_contents
425 (bfd
*, asection
*, const void *, file_ptr
, bfd_size_type
);
426 static bfd_boolean coff_slurp_line_table
428 static bfd_boolean coff_slurp_symbol_table
430 static enum coff_symbol_classification coff_classify_symbol
431 (bfd
*, struct internal_syment
*);
432 static bfd_boolean coff_slurp_reloc_table
433 (bfd
*, asection
*, asymbol
**);
434 static long coff_canonicalize_reloc
435 (bfd
*, asection
*, arelent
**, asymbol
**);
436 #ifndef coff_mkobject_hook
437 static void * coff_mkobject_hook
438 (bfd
*, void *, void *);
441 static flagword handle_COMDAT
442 (bfd
*, flagword
, void *, const char *, asection
*);
444 #ifdef COFF_IMAGE_WITH_PE
445 static bfd_boolean coff_read_word
446 (bfd
*, unsigned int *);
447 static unsigned int coff_compute_checksum
449 static bfd_boolean coff_apply_checksum
453 static bfd_boolean ticoff0_bad_format_hook
455 static bfd_boolean ticoff1_bad_format_hook
459 /* void warning(); */
461 #if defined (COFF_LONG_SECTION_NAMES)
463 bfd_coff_set_long_section_names_allowed (bfd
*abfd
, int enable
)
465 coff_backend_info (abfd
)->_bfd_coff_long_section_names
= enable
;
468 #else /* !defined (COFF_LONG_SECTION_NAMES) */
470 bfd_coff_set_long_section_names_disallowed (bfd
*abfd
, int enable
)
476 #endif /* defined (COFF_LONG_SECTION_NAMES) */
478 /* Return a word with STYP_* (scnhdr.s_flags) flags set to represent
479 the incoming SEC_* flags. The inverse of this function is
480 styp_to_sec_flags(). NOTE: If you add to/change this routine, you
481 should probably mirror the changes in styp_to_sec_flags(). */
485 /* Macros for setting debugging flags. */
488 #define STYP_XCOFF_DEBUG STYP_DEBUG
490 #define STYP_XCOFF_DEBUG STYP_INFO
493 #ifdef COFF_ALIGN_IN_S_FLAGS
494 #define STYP_DEBUG_INFO STYP_DSECT
496 #define STYP_DEBUG_INFO STYP_INFO
500 sec_to_styp_flags (const char *sec_name
, flagword sec_flags
)
504 if (!strcmp (sec_name
, _TEXT
))
506 styp_flags
= STYP_TEXT
;
508 else if (!strcmp (sec_name
, _DATA
))
510 styp_flags
= STYP_DATA
;
512 else if (!strcmp (sec_name
, _BSS
))
514 styp_flags
= STYP_BSS
;
517 else if (!strcmp (sec_name
, _COMMENT
))
519 styp_flags
= STYP_INFO
;
520 #endif /* _COMMENT */
523 else if (!strcmp (sec_name
, _LIB
))
525 styp_flags
= STYP_LIB
;
529 else if (!strcmp (sec_name
, _LIT
))
531 styp_flags
= STYP_LIT
;
534 else if (CONST_STRNEQ (sec_name
, DOT_DEBUG
)
535 || CONST_STRNEQ (sec_name
, DOT_ZDEBUG
))
537 /* Handle the XCOFF debug section and DWARF2 debug sections. */
539 styp_flags
= STYP_XCOFF_DEBUG
;
541 styp_flags
= STYP_DEBUG_INFO
;
543 else if (CONST_STRNEQ (sec_name
, ".stab"))
545 styp_flags
= STYP_DEBUG_INFO
;
547 #ifdef COFF_LONG_SECTION_NAMES
548 else if (CONST_STRNEQ (sec_name
, GNU_LINKONCE_WI
)
549 || CONST_STRNEQ (sec_name
, GNU_LINKONCE_WT
))
551 styp_flags
= STYP_DEBUG_INFO
;
555 else if (!strcmp (sec_name
, _PAD
))
557 styp_flags
= STYP_PAD
;
559 else if (!strcmp (sec_name
, _LOADER
))
561 styp_flags
= STYP_LOADER
;
563 else if (!strcmp (sec_name
, _EXCEPT
))
565 styp_flags
= STYP_EXCEPT
;
567 else if (!strcmp (sec_name
, _TYPCHK
))
569 styp_flags
= STYP_TYPCHK
;
571 else if (sec_flags
& SEC_DEBUGGING
)
575 for (i
= 0; i
< XCOFF_DWSECT_NBR_NAMES
; i
++)
576 if (!strcmp (sec_name
, xcoff_dwsect_names
[i
].name
))
578 styp_flags
= STYP_DWARF
| xcoff_dwsect_names
[i
].flag
;
583 /* Try and figure out what it should be */
584 else if (sec_flags
& SEC_CODE
)
586 styp_flags
= STYP_TEXT
;
588 else if (sec_flags
& SEC_DATA
)
590 styp_flags
= STYP_DATA
;
592 else if (sec_flags
& SEC_READONLY
)
594 #ifdef STYP_LIT /* 29k readonly text/data section */
595 styp_flags
= STYP_LIT
;
597 styp_flags
= STYP_TEXT
;
598 #endif /* STYP_LIT */
600 else if (sec_flags
& SEC_LOAD
)
602 styp_flags
= STYP_TEXT
;
604 else if (sec_flags
& SEC_ALLOC
)
606 styp_flags
= STYP_BSS
;
610 if (sec_flags
& SEC_TIC54X_CLINK
)
611 styp_flags
|= STYP_CLINK
;
615 if (sec_flags
& SEC_TIC54X_BLOCK
)
616 styp_flags
|= STYP_BLOCK
;
620 if ((sec_flags
& (SEC_NEVER_LOAD
| SEC_COFF_SHARED_LIBRARY
)) != 0)
621 styp_flags
|= STYP_NOLOAD
;
627 #else /* COFF_WITH_PE */
629 /* The PE version; see above for the general comments. The non-PE
630 case seems to be more guessing, and breaks PE format; specifically,
631 .rdata is readonly, but it sure ain't text. Really, all this
632 should be set up properly in gas (or whatever assembler is in use),
633 and honor whatever objcopy/strip, etc. sent us as input. */
636 sec_to_styp_flags (const char *sec_name
, flagword sec_flags
)
639 bfd_boolean is_dbg
= FALSE
;
641 if (CONST_STRNEQ (sec_name
, DOT_DEBUG
)
642 || CONST_STRNEQ (sec_name
, DOT_ZDEBUG
)
643 #ifdef COFF_LONG_SECTION_NAMES
644 || CONST_STRNEQ (sec_name
, GNU_LINKONCE_WI
)
645 || CONST_STRNEQ (sec_name
, GNU_LINKONCE_WT
)
647 || CONST_STRNEQ (sec_name
, ".stab"))
650 /* caution: there are at least three groups of symbols that have
651 very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*.
652 SEC_* are the BFD internal flags, used for generic BFD
653 information. STYP_* are the COFF section flags which appear in
654 COFF files. IMAGE_SCN_* are the PE section flags which appear in
655 PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap,
656 but there are more IMAGE_SCN_* flags. */
658 /* FIXME: There is no gas syntax to specify the debug section flag. */
661 sec_flags
&= (SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
662 | SEC_LINK_DUPLICATES_SAME_CONTENTS
663 | SEC_LINK_DUPLICATES_SAME_SIZE
);
664 sec_flags
|= SEC_DEBUGGING
| SEC_READONLY
;
670 if ((sec_flags
& SEC_CODE
) != 0)
671 styp_flags
|= IMAGE_SCN_CNT_CODE
;
672 if ((sec_flags
& (SEC_DATA
| SEC_DEBUGGING
)) != 0)
673 styp_flags
|= IMAGE_SCN_CNT_INITIALIZED_DATA
;
674 if ((sec_flags
& SEC_ALLOC
) != 0 && (sec_flags
& SEC_LOAD
) == 0)
675 styp_flags
|= IMAGE_SCN_CNT_UNINITIALIZED_DATA
; /* ==STYP_BSS */
677 /* skip constRUCTOR */
679 if ((sec_flags
& SEC_IS_COMMON
) != 0)
680 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
681 if ((sec_flags
& SEC_DEBUGGING
) != 0)
682 styp_flags
|= IMAGE_SCN_MEM_DISCARDABLE
;
683 if ((sec_flags
& SEC_EXCLUDE
) != 0 && !is_dbg
)
684 styp_flags
|= IMAGE_SCN_LNK_REMOVE
;
685 if ((sec_flags
& SEC_NEVER_LOAD
) != 0 && !is_dbg
)
686 styp_flags
|= IMAGE_SCN_LNK_REMOVE
;
689 if (sec_flags
& SEC_LINK_ONCE
)
690 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
692 & (SEC_LINK_DUPLICATES_DISCARD
| SEC_LINK_DUPLICATES_SAME_CONTENTS
693 | SEC_LINK_DUPLICATES_SAME_SIZE
)) != 0)
694 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
696 /* skip LINKER_CREATED */
698 if ((sec_flags
& SEC_COFF_NOREAD
) == 0)
699 styp_flags
|= IMAGE_SCN_MEM_READ
; /* Invert NOREAD for read. */
700 if ((sec_flags
& SEC_READONLY
) == 0)
701 styp_flags
|= IMAGE_SCN_MEM_WRITE
; /* Invert READONLY for write. */
702 if (sec_flags
& SEC_CODE
)
703 styp_flags
|= IMAGE_SCN_MEM_EXECUTE
; /* CODE->EXECUTE. */
704 if (sec_flags
& SEC_COFF_SHARED
)
705 styp_flags
|= IMAGE_SCN_MEM_SHARED
; /* Shared remains meaningful. */
710 #endif /* COFF_WITH_PE */
712 /* Return a word with SEC_* flags set to represent the incoming STYP_*
713 flags (from scnhdr.s_flags). The inverse of this function is
714 sec_to_styp_flags(). NOTE: If you add to/change this routine, you
715 should probably mirror the changes in sec_to_styp_flags(). */
720 styp_to_sec_flags (bfd
*abfd
,
723 asection
*section ATTRIBUTE_UNUSED
,
726 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
727 long styp_flags
= internal_s
->s_flags
;
728 flagword sec_flags
= 0;
731 if (styp_flags
& STYP_BLOCK
)
732 sec_flags
|= SEC_TIC54X_BLOCK
;
736 if (styp_flags
& STYP_CLINK
)
737 sec_flags
|= SEC_TIC54X_CLINK
;
741 if (styp_flags
& STYP_NOLOAD
)
742 sec_flags
|= SEC_NEVER_LOAD
;
743 #endif /* STYP_NOLOAD */
745 /* For 386 COFF, at least, an unloadable text or data section is
746 actually a shared library section. */
747 if (styp_flags
& STYP_TEXT
)
749 if (sec_flags
& SEC_NEVER_LOAD
)
750 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
752 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
754 else if (styp_flags
& STYP_DATA
)
756 if (sec_flags
& SEC_NEVER_LOAD
)
757 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
759 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
761 else if (styp_flags
& STYP_BSS
)
763 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
764 if (sec_flags
& SEC_NEVER_LOAD
)
765 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
768 sec_flags
|= SEC_ALLOC
;
770 else if (styp_flags
& STYP_INFO
)
772 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
773 defined. coff_compute_section_file_positions uses
774 COFF_PAGE_SIZE to ensure that the low order bits of the
775 section VMA and the file offset match. If we don't know
776 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
777 and demand page loading of the file will fail. */
778 #if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS)
779 sec_flags
|= SEC_DEBUGGING
;
782 else if (styp_flags
& STYP_PAD
)
785 else if (styp_flags
& STYP_EXCEPT
)
786 sec_flags
|= SEC_LOAD
;
787 else if (styp_flags
& STYP_LOADER
)
788 sec_flags
|= SEC_LOAD
;
789 else if (styp_flags
& STYP_TYPCHK
)
790 sec_flags
|= SEC_LOAD
;
791 else if (styp_flags
& STYP_DWARF
)
792 sec_flags
|= SEC_DEBUGGING
;
794 else if (strcmp (name
, _TEXT
) == 0)
796 if (sec_flags
& SEC_NEVER_LOAD
)
797 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
799 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
801 else if (strcmp (name
, _DATA
) == 0)
803 if (sec_flags
& SEC_NEVER_LOAD
)
804 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
806 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
808 else if (strcmp (name
, _BSS
) == 0)
810 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
811 if (sec_flags
& SEC_NEVER_LOAD
)
812 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
815 sec_flags
|= SEC_ALLOC
;
817 else if (CONST_STRNEQ (name
, DOT_DEBUG
)
818 || CONST_STRNEQ (name
, DOT_ZDEBUG
)
820 || strcmp (name
, _COMMENT
) == 0
822 #ifdef COFF_LONG_SECTION_NAMES
823 || CONST_STRNEQ (name
, GNU_LINKONCE_WI
)
824 || CONST_STRNEQ (name
, GNU_LINKONCE_WT
)
826 || CONST_STRNEQ (name
, ".stab"))
828 #ifdef COFF_PAGE_SIZE
829 sec_flags
|= SEC_DEBUGGING
;
833 else if (strcmp (name
, _LIB
) == 0)
837 else if (strcmp (name
, _LIT
) == 0)
838 sec_flags
= SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
;
841 sec_flags
|= SEC_ALLOC
| SEC_LOAD
;
843 #ifdef STYP_LIT /* A29k readonly text/data section type. */
844 if ((styp_flags
& STYP_LIT
) == STYP_LIT
)
845 sec_flags
= (SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
);
846 #endif /* STYP_LIT */
848 #ifdef STYP_OTHER_LOAD /* Other loaded sections. */
849 if (styp_flags
& STYP_OTHER_LOAD
)
850 sec_flags
= (SEC_LOAD
| SEC_ALLOC
);
851 #endif /* STYP_SDATA */
853 if ((bfd_applicable_section_flags (abfd
) & SEC_SMALL_DATA
) != 0
854 && (CONST_STRNEQ (name
, ".sbss")
855 || CONST_STRNEQ (name
, ".sdata")))
856 sec_flags
|= SEC_SMALL_DATA
;
858 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
859 /* As a GNU extension, if the name begins with .gnu.linkonce, we
860 only link a single copy of the section. This is used to support
861 g++. g++ will emit each template expansion in its own section.
862 The symbols will be defined as weak, so that multiple definitions
863 are permitted. The GNU linker extension is to actually discard
864 all but one of the sections. */
865 if (CONST_STRNEQ (name
, ".gnu.linkonce"))
866 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
869 if (flags_ptr
== NULL
)
872 * flags_ptr
= sec_flags
;
876 #else /* COFF_WITH_PE */
879 handle_COMDAT (bfd
* abfd
,
885 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
886 bfd_byte
*esymstart
, *esym
, *esymend
;
888 char *target_name
= NULL
;
890 sec_flags
|= SEC_LINK_ONCE
;
892 /* Unfortunately, the PE format stores essential information in
893 the symbol table, of all places. We need to extract that
894 information now, so that objdump and the linker will know how
895 to handle the section without worrying about the symbols. We
896 can't call slurp_symtab, because the linker doesn't want the
899 /* COMDAT sections are special. The first symbol is the section
900 symbol, which tells what kind of COMDAT section it is. The
901 second symbol is the "comdat symbol" - the one with the
902 unique name. GNU uses the section symbol for the unique
903 name; MS uses ".text" for every comdat section. Sigh. - DJ */
905 /* This is not mirrored in sec_to_styp_flags(), but there
906 doesn't seem to be a need to, either, and it would at best be
909 if (! _bfd_coff_get_external_symbols (abfd
))
912 esymstart
= esym
= (bfd_byte
*) obj_coff_external_syms (abfd
);
913 esymend
= esym
+ obj_raw_syment_count (abfd
) * bfd_coff_symesz (abfd
);
915 while (esym
< esymend
)
917 struct internal_syment isym
;
918 char buf
[SYMNMLEN
+ 1];
921 bfd_coff_swap_sym_in (abfd
, esym
, & isym
);
923 BFD_ASSERT (sizeof (internal_s
->s_name
) <= SYMNMLEN
);
925 if (isym
.n_scnum
== section
->target_index
)
927 /* According to the MSVC documentation, the first
928 TWO entries with the section # are both of
929 interest to us. The first one is the "section
930 symbol" (section name). The second is the comdat
931 symbol name. Here, we've found the first
932 qualifying entry; we distinguish it from the
933 second with a state flag.
935 In the case of gas-generated (at least until that
936 is fixed) .o files, it isn't necessarily the
937 second one. It may be some other later symbol.
939 Since gas also doesn't follow MS conventions and
940 emits the section similar to .text$<name>, where
941 <something> is the name we're looking for, we
942 distinguish the two as follows:
944 If the section name is simply a section name (no
945 $) we presume it's MS-generated, and look at
946 precisely the second symbol for the comdat name.
947 If the section name has a $, we assume it's
948 gas-generated, and look for <something> (whatever
949 follows the $) as the comdat symbol. */
951 /* All 3 branches use this. */
952 symname
= _bfd_coff_internal_syment_name (abfd
, &isym
, buf
);
954 /* PR 17512 file: 078-11867-0.004 */
957 _bfd_error_handler (_("%pB: unable to load COMDAT section name"),
966 /* The first time we've seen the symbol. */
967 union internal_auxent aux
;
969 /* If it isn't the stuff we're expecting, die;
970 The MS documentation is vague, but it
971 appears that the second entry serves BOTH
972 as the comdat symbol and the defining
973 symbol record (either C_STAT or C_EXT,
974 possibly with an aux entry with debug
975 information if it's a function.) It
976 appears the only way to find the second one
977 is to count. (On Intel, they appear to be
978 adjacent, but on Alpha, they have been
981 Here, we think we've found the first one,
982 but there's some checking we can do to be
985 if (! ((isym
.n_sclass
== C_STAT
986 || isym
.n_sclass
== C_EXT
)
987 && BTYPE (isym
.n_type
) == T_NULL
988 && isym
.n_value
== 0))
990 /* Malformed input files can trigger this test.
992 _bfd_error_handler (_("%pB: error: unexpected symbol '%s' in COMDAT section"),
997 /* FIXME LATER: MSVC generates section names
998 like .text for comdats. Gas generates
999 names like .text$foo__Fv (in the case of a
1000 function). See comment above for more. */
1002 if (isym
.n_sclass
== C_STAT
&& strcmp (name
, symname
) != 0)
1003 /* xgettext:c-format */
1004 _bfd_error_handler (_("%pB: warning: COMDAT symbol '%s'"
1005 " does not match section name '%s'"),
1006 abfd
, symname
, name
);
1010 /* PR 17512: file: e2cfe54f. */
1011 if (esym
+ bfd_coff_symesz (abfd
) >= esymend
)
1013 /* xgettext:c-format */
1014 _bfd_error_handler (_("%pB: warning: no symbol for"
1015 " section '%s' found"),
1019 /* This is the section symbol. */
1020 bfd_coff_swap_aux_in (abfd
, (esym
+ bfd_coff_symesz (abfd
)),
1021 isym
.n_type
, isym
.n_sclass
,
1022 0, isym
.n_numaux
, & aux
);
1024 target_name
= strchr (name
, '$');
1025 if (target_name
!= NULL
)
1033 /* FIXME: Microsoft uses NODUPLICATES and
1034 ASSOCIATIVE, but gnu uses ANY and
1035 SAME_SIZE. Unfortunately, gnu doesn't do
1036 the comdat symbols right. So, until we can
1037 fix it to do the right thing, we are
1038 temporarily disabling comdats for the MS
1039 types (they're used in DLLs and C++, but we
1040 don't support *their* C++ libraries anyway
1043 /* Cygwin does not follow the MS style, and
1044 uses ANY and SAME_SIZE where NODUPLICATES
1045 and ASSOCIATIVE should be used. For
1046 Interix, we just do the right thing up
1049 switch (aux
.x_scn
.x_comdat
)
1051 case IMAGE_COMDAT_SELECT_NODUPLICATES
:
1052 #ifdef STRICT_PE_FORMAT
1053 sec_flags
|= SEC_LINK_DUPLICATES_ONE_ONLY
;
1055 sec_flags
&= ~SEC_LINK_ONCE
;
1059 case IMAGE_COMDAT_SELECT_ANY
:
1060 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1063 case IMAGE_COMDAT_SELECT_SAME_SIZE
:
1064 sec_flags
|= SEC_LINK_DUPLICATES_SAME_SIZE
;
1067 case IMAGE_COMDAT_SELECT_EXACT_MATCH
:
1068 /* Not yet fully implemented ??? */
1069 sec_flags
|= SEC_LINK_DUPLICATES_SAME_CONTENTS
;
1072 /* debug$S gets this case; other
1075 /* There may be no symbol... we'll search
1076 the whole table... Is this the right
1077 place to play this game? Or should we do
1078 it when reading it in. */
1079 case IMAGE_COMDAT_SELECT_ASSOCIATIVE
:
1080 #ifdef STRICT_PE_FORMAT
1081 /* FIXME: This is not currently implemented. */
1082 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1084 sec_flags
&= ~SEC_LINK_ONCE
;
1088 default: /* 0 means "no symbol" */
1089 /* debug$F gets this case; other
1091 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1098 /* Gas mode: the first matching on partial name. */
1100 #ifndef TARGET_UNDERSCORE
1101 #define TARGET_UNDERSCORE 0
1103 /* Is this the name we're looking for ? */
1104 if (strcmp (target_name
,
1105 symname
+ (TARGET_UNDERSCORE
? 1 : 0)) != 0)
1107 /* Not the name we're looking for */
1108 esym
+= (isym
.n_numaux
+ 1) * bfd_coff_symesz (abfd
);
1113 /* MSVC mode: the lexically second symbol (or
1114 drop through from the above). */
1119 /* This must the second symbol with the
1120 section #. It is the actual symbol name.
1121 Intel puts the two adjacent, but Alpha (at
1122 least) spreads them out. */
1124 amt
= sizeof (struct coff_comdat_info
);
1125 coff_section_data (abfd
, section
)->comdat
1126 = (struct coff_comdat_info
*) bfd_alloc (abfd
, amt
);
1127 if (coff_section_data (abfd
, section
)->comdat
== NULL
)
1130 coff_section_data (abfd
, section
)->comdat
->symbol
=
1131 (esym
- esymstart
) / bfd_coff_symesz (abfd
);
1133 amt
= strlen (symname
) + 1;
1134 newname
= (char *) bfd_alloc (abfd
, amt
);
1135 if (newname
== NULL
)
1138 strcpy (newname
, symname
);
1139 coff_section_data (abfd
, section
)->comdat
->name
1147 esym
+= (isym
.n_numaux
+ 1) * bfd_coff_symesz (abfd
);
1155 /* The PE version; see above for the general comments.
1157 Since to set the SEC_LINK_ONCE and associated flags, we have to
1158 look at the symbol table anyway, we return the symbol table index
1159 of the symbol being used as the COMDAT symbol. This is admittedly
1160 ugly, but there's really nowhere else that we have access to the
1161 required information. FIXME: Is the COMDAT symbol index used for
1162 any purpose other than objdump? */
1165 styp_to_sec_flags (bfd
*abfd
,
1169 flagword
*flags_ptr
)
1171 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
1172 unsigned long styp_flags
= internal_s
->s_flags
;
1174 bfd_boolean result
= TRUE
;
1175 bfd_boolean is_dbg
= FALSE
;
1177 if (CONST_STRNEQ (name
, DOT_DEBUG
)
1178 || CONST_STRNEQ (name
, DOT_ZDEBUG
)
1179 #ifdef COFF_LONG_SECTION_NAMES
1180 || CONST_STRNEQ (name
, GNU_LINKONCE_WI
)
1181 || CONST_STRNEQ (name
, GNU_LINKONCE_WT
)
1182 /* FIXME: These definitions ought to be in a header file. */
1183 #define GNU_DEBUGLINK ".gnu_debuglink"
1184 #define GNU_DEBUGALTLINK ".gnu_debugaltlink"
1185 || CONST_STRNEQ (name
, GNU_DEBUGLINK
)
1186 || CONST_STRNEQ (name
, GNU_DEBUGALTLINK
)
1188 || CONST_STRNEQ (name
, ".stab"))
1190 /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */
1191 sec_flags
= SEC_READONLY
;
1193 /* If section disallows read, then set the NOREAD flag. */
1194 if ((styp_flags
& IMAGE_SCN_MEM_READ
) == 0)
1195 sec_flags
|= SEC_COFF_NOREAD
;
1197 /* Process each flag bit in styp_flags in turn. */
1200 unsigned long flag
= styp_flags
& - styp_flags
;
1201 char * unhandled
= NULL
;
1203 styp_flags
&= ~ flag
;
1205 /* We infer from the distinct read/write/execute bits the settings
1206 of some of the bfd flags; the actual values, should we need them,
1207 are also in pei_section_data (abfd, section)->pe_flags. */
1212 unhandled
= "STYP_DSECT";
1215 unhandled
= "STYP_GROUP";
1218 unhandled
= "STYP_COPY";
1221 unhandled
= "STYP_OVER";
1223 #ifdef SEC_NEVER_LOAD
1225 sec_flags
|= SEC_NEVER_LOAD
;
1228 case IMAGE_SCN_MEM_READ
:
1229 sec_flags
&= ~SEC_COFF_NOREAD
;
1231 case IMAGE_SCN_TYPE_NO_PAD
:
1234 case IMAGE_SCN_LNK_OTHER
:
1235 unhandled
= "IMAGE_SCN_LNK_OTHER";
1237 case IMAGE_SCN_MEM_NOT_CACHED
:
1238 unhandled
= "IMAGE_SCN_MEM_NOT_CACHED";
1240 case IMAGE_SCN_MEM_NOT_PAGED
:
1241 /* Generate a warning message rather using the 'unhandled'
1242 variable as this will allow some .sys files generate by
1243 other toolchains to be processed. See bugzilla issue 196. */
1244 /* xgettext:c-format */
1245 _bfd_error_handler (_("%pB: warning: ignoring section flag"
1246 " %s in section %s"),
1247 abfd
, "IMAGE_SCN_MEM_NOT_PAGED", name
);
1249 case IMAGE_SCN_MEM_EXECUTE
:
1250 sec_flags
|= SEC_CODE
;
1252 case IMAGE_SCN_MEM_WRITE
:
1253 sec_flags
&= ~ SEC_READONLY
;
1255 case IMAGE_SCN_MEM_DISCARDABLE
:
1256 /* The MS PE spec says that debug sections are DISCARDABLE,
1257 but the presence of a DISCARDABLE flag does not necessarily
1258 mean that a given section contains debug information. Thus
1259 we only set the SEC_DEBUGGING flag on sections that we
1260 recognise as containing debug information. */
1263 || strcmp (name
, _COMMENT
) == 0
1267 sec_flags
|= SEC_DEBUGGING
| SEC_READONLY
;
1270 case IMAGE_SCN_MEM_SHARED
:
1271 sec_flags
|= SEC_COFF_SHARED
;
1273 case IMAGE_SCN_LNK_REMOVE
:
1275 sec_flags
|= SEC_EXCLUDE
;
1277 case IMAGE_SCN_CNT_CODE
:
1278 sec_flags
|= SEC_CODE
| SEC_ALLOC
| SEC_LOAD
;
1280 case IMAGE_SCN_CNT_INITIALIZED_DATA
:
1282 sec_flags
|= SEC_DEBUGGING
;
1284 sec_flags
|= SEC_DATA
| SEC_ALLOC
| SEC_LOAD
;
1286 case IMAGE_SCN_CNT_UNINITIALIZED_DATA
:
1287 sec_flags
|= SEC_ALLOC
;
1289 case IMAGE_SCN_LNK_INFO
:
1290 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
1291 defined. coff_compute_section_file_positions uses
1292 COFF_PAGE_SIZE to ensure that the low order bits of the
1293 section VMA and the file offset match. If we don't know
1294 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
1295 and demand page loading of the file will fail. */
1296 #ifdef COFF_PAGE_SIZE
1297 sec_flags
|= SEC_DEBUGGING
;
1300 case IMAGE_SCN_LNK_COMDAT
:
1301 /* COMDAT gets very special treatment. */
1302 sec_flags
= handle_COMDAT (abfd
, sec_flags
, hdr
, name
, section
);
1305 /* Silently ignore for now. */
1309 /* If the section flag was not handled, report it here. */
1310 if (unhandled
!= NULL
)
1313 /* xgettext:c-format */
1314 (_("%pB (%s): section flag %s (%#lx) ignored"),
1315 abfd
, name
, unhandled
, flag
);
1320 if ((bfd_applicable_section_flags (abfd
) & SEC_SMALL_DATA
) != 0
1321 && (CONST_STRNEQ (name
, ".sbss")
1322 || CONST_STRNEQ (name
, ".sdata")))
1323 sec_flags
|= SEC_SMALL_DATA
;
1325 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
1326 /* As a GNU extension, if the name begins with .gnu.linkonce, we
1327 only link a single copy of the section. This is used to support
1328 g++. g++ will emit each template expansion in its own section.
1329 The symbols will be defined as weak, so that multiple definitions
1330 are permitted. The GNU linker extension is to actually discard
1331 all but one of the sections. */
1332 if (CONST_STRNEQ (name
, ".gnu.linkonce"))
1333 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
1337 * flags_ptr
= sec_flags
;
1342 #endif /* COFF_WITH_PE */
1344 #define get_index(symbol) ((symbol)->udata.i)
1348 bfd_coff_backend_data
1352 .{* COFF symbol classifications. *}
1354 .enum coff_symbol_classification
1356 . {* Global symbol. *}
1357 . COFF_SYMBOL_GLOBAL,
1358 . {* Common symbol. *}
1359 . COFF_SYMBOL_COMMON,
1360 . {* Undefined symbol. *}
1361 . COFF_SYMBOL_UNDEFINED,
1362 . {* Local symbol. *}
1363 . COFF_SYMBOL_LOCAL,
1364 . {* PE section symbol. *}
1365 . COFF_SYMBOL_PE_SECTION
1368 .typedef asection * (*coff_gc_mark_hook_fn)
1369 . (asection *, struct bfd_link_info *, struct internal_reloc *,
1370 . struct coff_link_hash_entry *, struct internal_syment *);
1372 Special entry points for gdb to swap in coff symbol table parts:
1375 . void (*_bfd_coff_swap_aux_in)
1376 . (bfd *, void *, int, int, int, int, void *);
1378 . void (*_bfd_coff_swap_sym_in)
1379 . (bfd *, void *, void *);
1381 . void (*_bfd_coff_swap_lineno_in)
1382 . (bfd *, void *, void *);
1384 . unsigned int (*_bfd_coff_swap_aux_out)
1385 . (bfd *, void *, int, int, int, int, void *);
1387 . unsigned int (*_bfd_coff_swap_sym_out)
1388 . (bfd *, void *, void *);
1390 . unsigned int (*_bfd_coff_swap_lineno_out)
1391 . (bfd *, void *, void *);
1393 . unsigned int (*_bfd_coff_swap_reloc_out)
1394 . (bfd *, void *, void *);
1396 . unsigned int (*_bfd_coff_swap_filehdr_out)
1397 . (bfd *, void *, void *);
1399 . unsigned int (*_bfd_coff_swap_aouthdr_out)
1400 . (bfd *, void *, void *);
1402 . unsigned int (*_bfd_coff_swap_scnhdr_out)
1403 . (bfd *, void *, void *);
1405 . unsigned int _bfd_filhsz;
1406 . unsigned int _bfd_aoutsz;
1407 . unsigned int _bfd_scnhsz;
1408 . unsigned int _bfd_symesz;
1409 . unsigned int _bfd_auxesz;
1410 . unsigned int _bfd_relsz;
1411 . unsigned int _bfd_linesz;
1412 . unsigned int _bfd_filnmlen;
1413 . bfd_boolean _bfd_coff_long_filenames;
1415 . bfd_boolean _bfd_coff_long_section_names;
1416 . bfd_boolean (*_bfd_coff_set_long_section_names)
1419 . unsigned int _bfd_coff_default_section_alignment_power;
1420 . bfd_boolean _bfd_coff_force_symnames_in_strings;
1421 . unsigned int _bfd_coff_debug_string_prefix_length;
1422 . unsigned int _bfd_coff_max_nscns;
1424 . void (*_bfd_coff_swap_filehdr_in)
1425 . (bfd *, void *, void *);
1427 . void (*_bfd_coff_swap_aouthdr_in)
1428 . (bfd *, void *, void *);
1430 . void (*_bfd_coff_swap_scnhdr_in)
1431 . (bfd *, void *, void *);
1433 . void (*_bfd_coff_swap_reloc_in)
1434 . (bfd *abfd, void *, void *);
1436 . bfd_boolean (*_bfd_coff_bad_format_hook)
1439 . bfd_boolean (*_bfd_coff_set_arch_mach_hook)
1442 . void * (*_bfd_coff_mkobject_hook)
1443 . (bfd *, void *, void *);
1445 . bfd_boolean (*_bfd_styp_to_sec_flags_hook)
1446 . (bfd *, void *, const char *, asection *, flagword *);
1448 . void (*_bfd_set_alignment_hook)
1449 . (bfd *, asection *, void *);
1451 . bfd_boolean (*_bfd_coff_slurp_symbol_table)
1454 . bfd_boolean (*_bfd_coff_symname_in_debug)
1455 . (bfd *, struct internal_syment *);
1457 . bfd_boolean (*_bfd_coff_pointerize_aux_hook)
1458 . (bfd *, combined_entry_type *, combined_entry_type *,
1459 . unsigned int, combined_entry_type *);
1461 . bfd_boolean (*_bfd_coff_print_aux)
1462 . (bfd *, FILE *, combined_entry_type *, combined_entry_type *,
1463 . combined_entry_type *, unsigned int);
1465 . void (*_bfd_coff_reloc16_extra_cases)
1466 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
1467 . bfd_byte *, unsigned int *, unsigned int *);
1469 . int (*_bfd_coff_reloc16_estimate)
1470 . (bfd *, asection *, arelent *, unsigned int,
1471 . struct bfd_link_info *);
1473 . enum coff_symbol_classification (*_bfd_coff_classify_symbol)
1474 . (bfd *, struct internal_syment *);
1476 . bfd_boolean (*_bfd_coff_compute_section_file_positions)
1479 . bfd_boolean (*_bfd_coff_start_final_link)
1480 . (bfd *, struct bfd_link_info *);
1482 . bfd_boolean (*_bfd_coff_relocate_section)
1483 . (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
1484 . struct internal_reloc *, struct internal_syment *, asection **);
1486 . reloc_howto_type *(*_bfd_coff_rtype_to_howto)
1487 . (bfd *, asection *, struct internal_reloc *,
1488 . struct coff_link_hash_entry *, struct internal_syment *, bfd_vma *);
1490 . bfd_boolean (*_bfd_coff_adjust_symndx)
1491 . (bfd *, struct bfd_link_info *, bfd *, asection *,
1492 . struct internal_reloc *, bfd_boolean *);
1494 . bfd_boolean (*_bfd_coff_link_add_one_symbol)
1495 . (struct bfd_link_info *, bfd *, const char *, flagword,
1496 . asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
1497 . struct bfd_link_hash_entry **);
1499 . bfd_boolean (*_bfd_coff_link_output_has_begun)
1500 . (bfd *, struct coff_final_link_info *);
1502 . bfd_boolean (*_bfd_coff_final_link_postscript)
1503 . (bfd *, struct coff_final_link_info *);
1505 . bfd_boolean (*_bfd_coff_print_pdata)
1508 .} bfd_coff_backend_data;
1510 .#define coff_backend_info(abfd) \
1511 . ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
1513 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
1514 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
1516 .#define bfd_coff_swap_sym_in(a,e,i) \
1517 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
1519 .#define bfd_coff_swap_lineno_in(a,e,i) \
1520 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
1522 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
1523 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
1525 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
1526 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
1528 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
1529 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
1531 .#define bfd_coff_swap_sym_out(abfd, i,o) \
1532 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
1534 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
1535 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
1537 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
1538 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
1540 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
1541 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
1543 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1544 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1545 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1546 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1547 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1548 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1549 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
1550 .#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
1551 .#define bfd_coff_long_filenames(abfd) \
1552 . (coff_backend_info (abfd)->_bfd_coff_long_filenames)
1553 .#define bfd_coff_long_section_names(abfd) \
1554 . (coff_backend_info (abfd)->_bfd_coff_long_section_names)
1555 .#define bfd_coff_set_long_section_names(abfd, enable) \
1556 . ((coff_backend_info (abfd)->_bfd_coff_set_long_section_names) (abfd, enable))
1557 .#define bfd_coff_default_section_alignment_power(abfd) \
1558 . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
1559 .#define bfd_coff_max_nscns(abfd) \
1560 . (coff_backend_info (abfd)->_bfd_coff_max_nscns)
1562 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
1563 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
1565 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
1566 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
1568 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
1569 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
1571 .#define bfd_coff_swap_reloc_in(abfd, i, o) \
1572 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
1574 .#define bfd_coff_bad_format_hook(abfd, filehdr) \
1575 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
1577 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
1578 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
1579 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
1580 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\
1581 . (abfd, filehdr, aouthdr))
1583 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
1584 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1585 . (abfd, scnhdr, name, section, flags_ptr))
1587 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
1588 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
1590 .#define bfd_coff_slurp_symbol_table(abfd)\
1591 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
1593 .#define bfd_coff_symname_in_debug(abfd, sym)\
1594 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
1596 .#define bfd_coff_force_symnames_in_strings(abfd)\
1597 . (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
1599 .#define bfd_coff_debug_string_prefix_length(abfd)\
1600 . (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
1602 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
1603 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1604 . (abfd, file, base, symbol, aux, indaux))
1606 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\
1607 . reloc, data, src_ptr, dst_ptr)\
1608 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1609 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
1611 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
1612 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1613 . (abfd, section, reloc, shrink, link_info))
1615 .#define bfd_coff_classify_symbol(abfd, sym)\
1616 . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1619 .#define bfd_coff_compute_section_file_positions(abfd)\
1620 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1623 .#define bfd_coff_start_final_link(obfd, info)\
1624 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1626 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
1627 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1628 . (obfd, info, ibfd, o, con, rel, isyms, secs))
1629 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
1630 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1631 . (abfd, sec, rel, h, sym, addendp))
1632 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
1633 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1634 . (obfd, info, ibfd, sec, rel, adjustedp))
1635 .#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\
1636 . value, string, cp, coll, hashp)\
1637 . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1638 . (info, abfd, name, flags, section, value, string, cp, coll, hashp))
1640 .#define bfd_coff_link_output_has_begun(a,p) \
1641 . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a, p))
1642 .#define bfd_coff_final_link_postscript(a,p) \
1643 . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a, p))
1645 .#define bfd_coff_have_print_pdata(a) \
1646 . (coff_backend_info (a)->_bfd_coff_print_pdata)
1647 .#define bfd_coff_print_pdata(a,p) \
1648 . ((coff_backend_info (a)->_bfd_coff_print_pdata) (a, p))
1650 .{* Macro: Returns true if the bfd is a PE executable as opposed to a
1651 . PE object file. *}
1652 .#define bfd_pei_p(abfd) \
1653 . (CONST_STRNEQ ((abfd)->xvec->name, "pei-"))
1656 /* See whether the magic number matches. */
1659 coff_bad_format_hook (bfd
* abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1661 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1663 if (BADMAG (*internal_f
))
1671 ticoff0_bad_format_hook (bfd
*abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1673 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1675 if (COFF0_BADMAG (*internal_f
))
1684 ticoff1_bad_format_hook (bfd
*abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1686 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1688 if (COFF1_BADMAG (*internal_f
))
1695 /* Check whether this section uses an alignment other than the
1699 coff_set_custom_section_alignment (bfd
*abfd ATTRIBUTE_UNUSED
,
1701 const struct coff_section_alignment_entry
*alignment_table
,
1702 const unsigned int table_size
)
1704 const unsigned int default_alignment
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1707 for (i
= 0; i
< table_size
; ++i
)
1709 const char *secname
= bfd_section_name (section
);
1711 if (alignment_table
[i
].comparison_length
== (unsigned int) -1
1712 ? strcmp (alignment_table
[i
].name
, secname
) == 0
1713 : strncmp (alignment_table
[i
].name
, secname
,
1714 alignment_table
[i
].comparison_length
) == 0)
1717 if (i
>= table_size
)
1720 if (alignment_table
[i
].default_alignment_min
!= COFF_ALIGNMENT_FIELD_EMPTY
1721 && default_alignment
< alignment_table
[i
].default_alignment_min
)
1724 if (alignment_table
[i
].default_alignment_max
!= COFF_ALIGNMENT_FIELD_EMPTY
1725 #if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0
1726 && default_alignment
> alignment_table
[i
].default_alignment_max
1731 section
->alignment_power
= alignment_table
[i
].alignment_power
;
1734 /* Custom section alignment records. */
1736 static const struct coff_section_alignment_entry
1737 coff_section_alignment_table
[] =
1739 #ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1740 COFF_SECTION_ALIGNMENT_ENTRIES
,
1742 /* There must not be any gaps between .stabstr sections. */
1743 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1744 1, COFF_ALIGNMENT_FIELD_EMPTY
, 0 },
1745 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1746 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1747 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1748 /* Similarly for the .ctors and .dtors sections. */
1749 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1750 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1751 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1752 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 }
1755 static const unsigned int coff_section_alignment_table_size
=
1756 sizeof coff_section_alignment_table
/ sizeof coff_section_alignment_table
[0];
1758 /* Initialize a section structure with information peculiar to this
1759 particular implementation of COFF. */
1762 coff_new_section_hook (bfd
* abfd
, asection
* section
)
1764 combined_entry_type
*native
;
1766 unsigned char sclass
= C_STAT
;
1768 section
->alignment_power
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1771 if (bfd_xcoff_text_align_power (abfd
) != 0
1772 && strcmp (bfd_section_name (section
), ".text") == 0)
1773 section
->alignment_power
= bfd_xcoff_text_align_power (abfd
);
1774 else if (bfd_xcoff_data_align_power (abfd
) != 0
1775 && strcmp (bfd_section_name (section
), ".data") == 0)
1776 section
->alignment_power
= bfd_xcoff_data_align_power (abfd
);
1781 for (i
= 0; i
< XCOFF_DWSECT_NBR_NAMES
; i
++)
1782 if (strcmp (bfd_section_name (section
),
1783 xcoff_dwsect_names
[i
].name
) == 0)
1785 section
->alignment_power
= 0;
1792 /* Set up the section symbol. */
1793 if (!_bfd_generic_new_section_hook (abfd
, section
))
1796 /* Allocate aux records for section symbols, to store size and
1799 @@ The 10 is a guess at a plausible maximum number of aux entries
1800 (but shouldn't be a constant). */
1801 amt
= sizeof (combined_entry_type
) * 10;
1802 native
= (combined_entry_type
*) bfd_zalloc (abfd
, amt
);
1806 /* We don't need to set up n_name, n_value, or n_scnum in the native
1807 symbol information, since they'll be overridden by the BFD symbol
1808 anyhow. However, we do need to set the type and storage class,
1809 in case this symbol winds up getting written out. The value 0
1810 for n_numaux is already correct. */
1812 native
->is_sym
= TRUE
;
1813 native
->u
.syment
.n_type
= T_NULL
;
1814 native
->u
.syment
.n_sclass
= sclass
;
1816 coffsymbol (section
->symbol
)->native
= native
;
1818 coff_set_custom_section_alignment (abfd
, section
,
1819 coff_section_alignment_table
,
1820 coff_section_alignment_table_size
);
1825 #ifdef COFF_ALIGN_IN_SECTION_HEADER
1827 /* Set the alignment of a BFD section. */
1830 coff_set_alignment_hook (bfd
* abfd ATTRIBUTE_UNUSED
,
1834 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1837 #ifdef COFF_DECODE_ALIGNMENT
1838 i
= COFF_DECODE_ALIGNMENT(hdr
->s_flags
);
1840 section
->alignment_power
= i
;
1842 #ifdef coff_set_section_load_page
1843 coff_set_section_load_page (section
, hdr
->s_page
);
1847 #else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1851 coff_set_alignment_hook (bfd
* abfd ATTRIBUTE_UNUSED
,
1855 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1857 unsigned int alignment_power_const
1858 = hdr
->s_flags
& IMAGE_SCN_ALIGN_POWER_BIT_MASK
;
1860 switch (alignment_power_const
)
1862 case IMAGE_SCN_ALIGN_8192BYTES
:
1863 case IMAGE_SCN_ALIGN_4096BYTES
:
1864 case IMAGE_SCN_ALIGN_2048BYTES
:
1865 case IMAGE_SCN_ALIGN_1024BYTES
:
1866 case IMAGE_SCN_ALIGN_512BYTES
:
1867 case IMAGE_SCN_ALIGN_256BYTES
:
1868 case IMAGE_SCN_ALIGN_128BYTES
:
1869 case IMAGE_SCN_ALIGN_64BYTES
:
1870 case IMAGE_SCN_ALIGN_32BYTES
:
1871 case IMAGE_SCN_ALIGN_16BYTES
:
1872 case IMAGE_SCN_ALIGN_8BYTES
:
1873 case IMAGE_SCN_ALIGN_4BYTES
:
1874 case IMAGE_SCN_ALIGN_2BYTES
:
1875 case IMAGE_SCN_ALIGN_1BYTES
:
1876 section
->alignment_power
1877 = IMAGE_SCN_ALIGN_POWER_NUM (alignment_power_const
);
1883 /* In a PE image file, the s_paddr field holds the virtual size of a
1884 section, while the s_size field holds the raw size. We also keep
1885 the original section flag value, since not every bit can be
1886 mapped onto a generic BFD section bit. */
1887 if (coff_section_data (abfd
, section
) == NULL
)
1889 amt
= sizeof (struct coff_section_tdata
);
1890 section
->used_by_bfd
= bfd_zalloc (abfd
, amt
);
1891 if (section
->used_by_bfd
== NULL
)
1892 /* FIXME: Return error. */
1896 if (pei_section_data (abfd
, section
) == NULL
)
1898 amt
= sizeof (struct pei_section_tdata
);
1899 coff_section_data (abfd
, section
)->tdata
= bfd_zalloc (abfd
, amt
);
1900 if (coff_section_data (abfd
, section
)->tdata
== NULL
)
1901 /* FIXME: Return error. */
1904 pei_section_data (abfd
, section
)->virt_size
= hdr
->s_paddr
;
1905 pei_section_data (abfd
, section
)->pe_flags
= hdr
->s_flags
;
1907 section
->lma
= hdr
->s_vaddr
;
1909 /* Check for extended relocs. */
1910 if (hdr
->s_flags
& IMAGE_SCN_LNK_NRELOC_OVFL
)
1912 struct external_reloc dst
;
1913 struct internal_reloc n
;
1914 file_ptr oldpos
= bfd_tell (abfd
);
1915 bfd_size_type relsz
= bfd_coff_relsz (abfd
);
1917 if (bfd_seek (abfd
, (file_ptr
) hdr
->s_relptr
, 0) != 0)
1919 if (bfd_bread (& dst
, relsz
, abfd
) != relsz
)
1922 coff_swap_reloc_in (abfd
, &dst
, &n
);
1923 if (bfd_seek (abfd
, oldpos
, 0) != 0)
1925 section
->reloc_count
= hdr
->s_nreloc
= n
.r_vaddr
- 1;
1926 section
->rel_filepos
+= relsz
;
1928 else if (hdr
->s_nreloc
== 0xffff)
1930 (_("%pB: warning: claims to have 0xffff relocs, without overflow"),
1934 #undef ELIFALIGN_SET
1936 #else /* ! COFF_WITH_PE */
1939 /* We grossly abuse this function to handle XCOFF overflow headers.
1940 When we see one, we correct the reloc and line number counts in the
1941 real header, and remove the section we just created. */
1944 coff_set_alignment_hook (bfd
*abfd
, asection
*section
, void * scnhdr
)
1946 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1949 if ((hdr
->s_flags
& STYP_OVRFLO
) == 0)
1952 real_sec
= coff_section_from_bfd_index (abfd
, (int) hdr
->s_nreloc
);
1953 if (real_sec
== NULL
)
1956 real_sec
->reloc_count
= hdr
->s_paddr
;
1957 real_sec
->lineno_count
= hdr
->s_vaddr
;
1959 if (!bfd_section_removed_from_list (abfd
, section
))
1961 bfd_section_list_remove (abfd
, section
);
1962 --abfd
->section_count
;
1966 #else /* ! RS6000COFF_C */
1969 coff_set_alignment_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
1970 asection
*section ATTRIBUTE_UNUSED
,
1971 void *scnhdr ATTRIBUTE_UNUSED
)
1975 #endif /* ! RS6000COFF_C */
1976 #endif /* ! COFF_WITH_PE */
1977 #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
1979 #ifndef coff_mkobject
1982 coff_mkobject (bfd
* abfd
)
1984 coff_data_type
*coff
;
1985 size_t amt
= sizeof (coff_data_type
);
1987 abfd
->tdata
.coff_obj_data
= bfd_zalloc (abfd
, amt
);
1988 if (abfd
->tdata
.coff_obj_data
== NULL
)
1990 coff
= coff_data (abfd
);
1991 coff
->symbols
= NULL
;
1992 coff
->conversion_table
= NULL
;
1993 coff
->raw_syments
= NULL
;
1994 coff
->relocbase
= 0;
1995 coff
->local_toc_sym_map
= 0;
1997 /* make_abs_section(abfd);*/
2003 /* Create the COFF backend specific information. */
2005 #ifndef coff_mkobject_hook
2007 coff_mkobject_hook (bfd
* abfd
,
2009 void * aouthdr ATTRIBUTE_UNUSED
)
2011 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
2012 coff_data_type
*coff
;
2014 if (! coff_mkobject (abfd
))
2017 coff
= coff_data (abfd
);
2019 coff
->sym_filepos
= internal_f
->f_symptr
;
2021 /* These members communicate important constants about the symbol
2022 table to GDB's symbol-reading code. These `constants'
2023 unfortunately vary among coff implementations... */
2024 coff
->local_n_btmask
= N_BTMASK
;
2025 coff
->local_n_btshft
= N_BTSHFT
;
2026 coff
->local_n_tmask
= N_TMASK
;
2027 coff
->local_n_tshift
= N_TSHIFT
;
2028 coff
->local_symesz
= bfd_coff_symesz (abfd
);
2029 coff
->local_auxesz
= bfd_coff_auxesz (abfd
);
2030 coff
->local_linesz
= bfd_coff_linesz (abfd
);
2032 coff
->timestamp
= internal_f
->f_timdat
;
2034 obj_raw_syment_count (abfd
) =
2035 obj_conv_table_size (abfd
) =
2036 internal_f
->f_nsyms
;
2039 if ((internal_f
->f_flags
& F_SHROBJ
) != 0)
2040 abfd
->flags
|= DYNAMIC
;
2041 if (aouthdr
!= NULL
&& internal_f
->f_opthdr
>= bfd_coff_aoutsz (abfd
))
2043 struct internal_aouthdr
*internal_a
=
2044 (struct internal_aouthdr
*) aouthdr
;
2045 struct xcoff_tdata
*xcoff
;
2047 xcoff
= xcoff_data (abfd
);
2048 # ifdef U803XTOCMAGIC
2049 xcoff
->xcoff64
= internal_f
->f_magic
== U803XTOCMAGIC
;
2053 xcoff
->full_aouthdr
= TRUE
;
2054 xcoff
->toc
= internal_a
->o_toc
;
2055 xcoff
->sntoc
= internal_a
->o_sntoc
;
2056 xcoff
->snentry
= internal_a
->o_snentry
;
2057 bfd_xcoff_text_align_power (abfd
) = internal_a
->o_algntext
;
2058 bfd_xcoff_data_align_power (abfd
) = internal_a
->o_algndata
;
2059 xcoff
->modtype
= internal_a
->o_modtype
;
2060 xcoff
->cputype
= internal_a
->o_cputype
;
2061 xcoff
->maxdata
= internal_a
->o_maxdata
;
2062 xcoff
->maxstack
= internal_a
->o_maxstack
;
2067 /* Set the flags field from the COFF header read in. */
2068 if (! _bfd_coff_arm_set_private_flags (abfd
, internal_f
->f_flags
))
2073 /* FIXME: I'm not sure this is ever executed, since peicode.h
2074 defines coff_mkobject_hook. */
2075 if ((internal_f
->f_flags
& IMAGE_FILE_DEBUG_STRIPPED
) == 0)
2076 abfd
->flags
|= HAS_DEBUG
;
2083 /* Determine the machine architecture and type. FIXME: This is target
2084 dependent because the magic numbers are defined in the target
2085 dependent header files. But there is no particular need for this.
2086 If the magic numbers were moved to a separate file, this function
2087 would be target independent and would also be much more successful
2088 at linking together COFF files for different architectures. */
2091 coff_set_arch_mach_hook (bfd
*abfd
, void * filehdr
)
2093 unsigned long machine
;
2094 enum bfd_architecture arch
;
2095 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
2097 /* Zero selects the default machine for an arch. */
2099 switch (internal_f
->f_magic
)
2103 arch
= bfd_arch_powerpc
;
2109 case I386AIXMAGIC
: /* Danbury PS/2 AIX C Compiler. */
2111 case I386_APPLE_MAGIC
:
2112 case I386_FREEBSD_MAGIC
:
2113 case I386_LINUX_MAGIC
:
2114 case I386_NETBSD_MAGIC
:
2115 arch
= bfd_arch_i386
;
2120 case AMD64_APPLE_MAGIC
:
2121 case AMD64_FREEBSD_MAGIC
:
2122 case AMD64_LINUX_MAGIC
:
2123 case AMD64_NETBSD_MAGIC
:
2124 arch
= bfd_arch_i386
;
2125 machine
= bfd_mach_x86_64
;
2130 arch
= bfd_arch_ia64
;
2137 arch
= bfd_arch_arm
;
2138 machine
= bfd_arm_get_mach_from_notes (abfd
, ARM_NOTE_SECTION
);
2139 if (machine
== bfd_mach_arm_unknown
)
2141 switch (internal_f
->f_flags
& F_ARM_ARCHITECTURE_MASK
)
2143 case F_ARM_2
: machine
= bfd_mach_arm_2
; break;
2144 case F_ARM_2a
: machine
= bfd_mach_arm_2a
; break;
2145 case F_ARM_3
: machine
= bfd_mach_arm_3
; break;
2147 case F_ARM_3M
: machine
= bfd_mach_arm_3M
; break;
2148 case F_ARM_4
: machine
= bfd_mach_arm_4
; break;
2149 case F_ARM_4T
: machine
= bfd_mach_arm_4T
; break;
2150 /* The COFF header does not have enough bits available
2151 to cover all the different ARM architectures. So
2152 we interpret F_ARM_5, the highest flag value to mean
2153 "the highest ARM architecture known to BFD" which is
2154 currently the XScale. */
2155 case F_ARM_5
: machine
= bfd_mach_arm_XScale
; break;
2162 arch
= bfd_arch_z80
;
2163 switch (internal_f
->f_flags
& F_MACHMASK
)
2165 case bfd_mach_z80strict
<< 12:
2166 case bfd_mach_z80
<< 12:
2167 case bfd_mach_z80n
<< 12:
2168 case bfd_mach_z80full
<< 12:
2169 case bfd_mach_r800
<< 12:
2170 case bfd_mach_gbz80
<< 12:
2171 case bfd_mach_z180
<< 12:
2172 case bfd_mach_ez80_z80
<< 12:
2173 case bfd_mach_ez80_adl
<< 12:
2174 machine
= ((unsigned)internal_f
->f_flags
& F_MACHMASK
) >> 12;
2183 arch
= bfd_arch_z8k
;
2184 switch (internal_f
->f_flags
& F_MACHMASK
)
2187 machine
= bfd_mach_z8001
;
2190 machine
= bfd_mach_z8002
;
2210 if (xcoff_data (abfd
)->cputype
!= -1)
2211 cputype
= xcoff_data (abfd
)->cputype
& 0xff;
2214 /* We did not get a value from the a.out header. If the
2215 file has not been stripped, we may be able to get the
2216 architecture information from the first symbol, if it
2217 is a .file symbol. */
2218 if (obj_raw_syment_count (abfd
) == 0)
2223 struct internal_syment sym
;
2224 bfd_size_type amt
= bfd_coff_symesz (abfd
);
2226 if (bfd_seek (abfd
, obj_sym_filepos (abfd
), SEEK_SET
) != 0)
2228 buf
= _bfd_malloc_and_read (abfd
, amt
, amt
);
2231 bfd_coff_swap_sym_in (abfd
, buf
, & sym
);
2232 if (sym
.n_sclass
== C_FILE
)
2233 cputype
= sym
.n_type
& 0xff;
2240 /* FIXME: We don't handle all cases here. */
2245 arch
= bfd_xcoff_architecture (abfd
);
2246 machine
= bfd_xcoff_machine (abfd
);
2250 arch
= bfd_arch_powerpc
;
2251 machine
= bfd_mach_ppc_601
;
2253 case 2: /* 64 bit PowerPC */
2254 arch
= bfd_arch_powerpc
;
2255 machine
= bfd_mach_ppc_620
;
2258 arch
= bfd_arch_powerpc
;
2259 machine
= bfd_mach_ppc
;
2262 arch
= bfd_arch_rs6000
;
2263 machine
= bfd_mach_rs6k
;
2270 #ifdef SH_ARCH_MAGIC_BIG
2271 case SH_ARCH_MAGIC_BIG
:
2272 case SH_ARCH_MAGIC_LITTLE
:
2274 case SH_ARCH_MAGIC_WINCE
:
2280 #ifdef MIPS_ARCH_MAGIC_WINCE
2281 case MIPS_ARCH_MAGIC_WINCE
:
2282 arch
= bfd_arch_mips
;
2288 #ifdef LYNXCOFFMAGIC
2291 arch
= bfd_arch_sparc
;
2297 arch
= bfd_arch_tic30
;
2302 #ifdef TICOFF_TARGET_ARCH
2303 /* This TI COFF section should be used by all new TI COFF v0 targets. */
2305 arch
= TICOFF_TARGET_ARCH
;
2306 machine
= TICOFF_TARGET_MACHINE_GET (internal_f
->f_flags
);
2312 /* This TI COFF section should be used by all new TI COFF v1/2 targets. */
2313 /* TI COFF1 and COFF2 use the target_id field to specify which arch. */
2316 switch (internal_f
->f_target_id
)
2320 arch
= TICOFF_TARGET_ARCH
;
2321 machine
= TICOFF_TARGET_MACHINE_GET (internal_f
->f_flags
);
2325 arch
= bfd_arch_obscure
;
2327 (_("unrecognized TI COFF target id '0x%x'"),
2328 internal_f
->f_target_id
);
2336 arch
= bfd_arch_mcore
;
2340 default: /* Unreadable input file type. */
2341 arch
= bfd_arch_obscure
;
2345 bfd_default_set_arch_mach (abfd
, arch
, machine
);
2350 symname_in_debug_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2351 struct internal_syment
*sym ATTRIBUTE_UNUSED
)
2353 #ifdef SYMNAME_IN_DEBUG
2354 return SYMNAME_IN_DEBUG (sym
) != 0;
2363 #define FORCE_SYMNAMES_IN_STRINGS
2366 /* Handle the csect auxent of a C_EXT, C_AIX_WEAKEXT or C_HIDEXT symbol. */
2369 coff_pointerize_aux_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2370 combined_entry_type
*table_base
,
2371 combined_entry_type
*symbol
,
2372 unsigned int indaux
,
2373 combined_entry_type
*aux
)
2375 BFD_ASSERT (symbol
->is_sym
);
2376 int n_sclass
= symbol
->u
.syment
.n_sclass
;
2378 if (CSECT_SYM_P (n_sclass
)
2379 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2381 BFD_ASSERT (! aux
->is_sym
);
2382 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) == XTY_LD
)
2384 aux
->u
.auxent
.x_csect
.x_scnlen
.p
=
2385 table_base
+ aux
->u
.auxent
.x_csect
.x_scnlen
.l
;
2386 aux
->fix_scnlen
= 1;
2389 /* Return TRUE to indicate that the caller should not do any
2390 further work on this auxent. */
2394 /* Return FALSE to indicate that this auxent should be handled by
2400 #define coff_pointerize_aux_hook 0
2401 #endif /* ! RS6000COFF_C */
2403 /* Print an aux entry. This returns TRUE if it has printed it. */
2406 coff_print_aux (bfd
*abfd ATTRIBUTE_UNUSED
,
2407 FILE *file ATTRIBUTE_UNUSED
,
2408 combined_entry_type
*table_base ATTRIBUTE_UNUSED
,
2409 combined_entry_type
*symbol ATTRIBUTE_UNUSED
,
2410 combined_entry_type
*aux ATTRIBUTE_UNUSED
,
2411 unsigned int indaux ATTRIBUTE_UNUSED
)
2413 BFD_ASSERT (symbol
->is_sym
);
2414 BFD_ASSERT (! aux
->is_sym
);
2416 if (CSECT_SYM_P (symbol
->u
.syment
.n_sclass
)
2417 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2419 /* This is a csect entry. */
2420 fprintf (file
, "AUX ");
2421 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) != XTY_LD
)
2423 BFD_ASSERT (! aux
->fix_scnlen
);
2424 fprintf (file
, "val %5" BFD_VMA_FMT
"d",
2425 aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2429 fprintf (file
, "indx ");
2430 if (! aux
->fix_scnlen
)
2431 fprintf (file
, "%4" BFD_VMA_FMT
"d",
2432 aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2434 fprintf (file
, "%4ld",
2435 (long) (aux
->u
.auxent
.x_csect
.x_scnlen
.p
- table_base
));
2438 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2439 aux
->u
.auxent
.x_csect
.x_parmhash
,
2440 (unsigned int) aux
->u
.auxent
.x_csect
.x_snhash
,
2441 SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
),
2442 SMTYP_ALIGN (aux
->u
.auxent
.x_csect
.x_smtyp
),
2443 (unsigned int) aux
->u
.auxent
.x_csect
.x_smclas
,
2444 aux
->u
.auxent
.x_csect
.x_stab
,
2445 (unsigned int) aux
->u
.auxent
.x_csect
.x_snstab
);
2450 /* Return FALSE to indicate that no special action was taken. */
2458 To write relocations, the back end steps though the
2459 canonical relocation table and create an
2460 @code{internal_reloc}. The symbol index to use is removed from
2461 the @code{offset} field in the symbol table supplied. The
2462 address comes directly from the sum of the section base
2463 address and the relocation offset; the type is dug directly
2464 from the howto field. Then the @code{internal_reloc} is
2465 swapped into the shape of an @code{external_reloc} and written
2473 /* AUX's ld wants relocations to be sorted. */
2475 compare_arelent_ptr (const void * x
, const void * y
)
2477 const arelent
**a
= (const arelent
**) x
;
2478 const arelent
**b
= (const arelent
**) y
;
2479 bfd_size_type aadr
= (*a
)->address
;
2480 bfd_size_type badr
= (*b
)->address
;
2482 return (aadr
< badr
? -1 : badr
< aadr
? 1 : 0);
2485 #endif /* TARG_AUX */
2488 coff_write_relocs (bfd
* abfd
, int first_undef
)
2492 for (s
= abfd
->sections
; s
!= NULL
; s
= s
->next
)
2495 struct external_reloc dst
;
2502 /* Sort relocations before we write them out. */
2505 amt
= s
->reloc_count
;
2506 amt
*= sizeof (arelent
*);
2507 p
= bfd_malloc (amt
);
2510 if (s
->reloc_count
> 0)
2515 memcpy (p
, s
->orelocation
, (size_t) amt
);
2516 qsort (p
, s
->reloc_count
, sizeof (arelent
*), compare_arelent_ptr
);
2521 if (bfd_seek (abfd
, s
->rel_filepos
, SEEK_SET
) != 0)
2525 if (obj_pe (abfd
) && s
->reloc_count
>= 0xffff)
2527 /* Encode real count here as first reloc. */
2528 struct internal_reloc n
;
2530 memset (& n
, 0, sizeof (n
));
2531 /* Add one to count *this* reloc (grr). */
2532 n
.r_vaddr
= s
->reloc_count
+ 1;
2533 coff_swap_reloc_out (abfd
, &n
, &dst
);
2534 if (bfd_bwrite (& dst
, (bfd_size_type
) bfd_coff_relsz (abfd
),
2535 abfd
) != bfd_coff_relsz (abfd
))
2540 for (i
= 0; i
< s
->reloc_count
; i
++)
2542 struct internal_reloc n
;
2545 memset (& n
, 0, sizeof (n
));
2547 /* Now we've renumbered the symbols we know where the
2548 undefined symbols live in the table. Check the reloc
2549 entries for symbols who's output bfd isn't the right one.
2550 This is because the symbol was undefined (which means
2551 that all the pointers are never made to point to the same
2552 place). This is a bad thing,'cause the symbols attached
2553 to the output bfd are indexed, so that the relocation
2554 entries know which symbol index they point to. So we
2555 have to look up the output symbol here. */
2557 if (q
->sym_ptr_ptr
[0] != NULL
&& q
->sym_ptr_ptr
[0]->the_bfd
!= abfd
)
2560 const char *sname
= q
->sym_ptr_ptr
[0]->name
;
2561 asymbol
**outsyms
= abfd
->outsymbols
;
2563 for (j
= first_undef
; outsyms
[j
]; j
++)
2565 const char *intable
= outsyms
[j
]->name
;
2567 if (strcmp (intable
, sname
) == 0)
2569 /* Got a hit, so repoint the reloc. */
2570 q
->sym_ptr_ptr
= outsyms
+ j
;
2576 n
.r_vaddr
= q
->address
+ s
->vma
;
2579 /* The 29k const/consth reloc pair is a real kludge. The consth
2580 part doesn't have a symbol; it has an offset. So rebuilt
2582 if (q
->howto
->type
== R_IHCONST
)
2583 n
.r_symndx
= q
->addend
;
2586 if (q
->sym_ptr_ptr
&& q
->sym_ptr_ptr
[0] != NULL
)
2588 #ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P
2589 if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q
, s
))
2591 if ((*q
->sym_ptr_ptr
)->section
== bfd_abs_section_ptr
2592 && ((*q
->sym_ptr_ptr
)->flags
& BSF_SECTION_SYM
) != 0)
2594 /* This is a relocation relative to the absolute symbol. */
2598 n
.r_symndx
= get_index ((*(q
->sym_ptr_ptr
)));
2599 /* Check to see if the symbol reloc points to a symbol
2600 we don't have in our symbol table. */
2601 if (n
.r_symndx
> obj_conv_table_size (abfd
))
2603 bfd_set_error (bfd_error_bad_value
);
2604 /* xgettext:c-format */
2605 _bfd_error_handler (_("%pB: reloc against a non-existent"
2606 " symbol index: %ld"),
2613 #ifdef SWAP_OUT_RELOC_OFFSET
2614 n
.r_offset
= q
->addend
;
2618 /* Work out reloc type from what is required. */
2619 SELECT_RELOC (n
, q
->howto
);
2621 n
.r_type
= q
->howto
->type
;
2623 coff_swap_reloc_out (abfd
, &n
, &dst
);
2625 if (bfd_bwrite (& dst
, (bfd_size_type
) bfd_coff_relsz (abfd
),
2626 abfd
) != bfd_coff_relsz (abfd
))
2639 /* Set flags and magic number of a coff file from architecture and machine
2640 type. Result is TRUE if we can represent the arch&type, FALSE if not. */
2643 coff_set_flags (bfd
* abfd
,
2644 unsigned int *magicp ATTRIBUTE_UNUSED
,
2645 unsigned short *flagsp ATTRIBUTE_UNUSED
)
2647 switch (bfd_get_arch (abfd
))
2652 switch (bfd_get_mach (abfd
))
2654 case bfd_mach_z80strict
:
2657 case bfd_mach_z80full
:
2659 case bfd_mach_gbz80
:
2661 case bfd_mach_ez80_z80
:
2662 case bfd_mach_ez80_adl
:
2663 *flagsp
= bfd_get_mach (abfd
) << 12;
2675 switch (bfd_get_mach (abfd
))
2677 case bfd_mach_z8001
: *flagsp
= F_Z8001
; break;
2678 case bfd_mach_z8002
: *flagsp
= F_Z8002
; break;
2679 default: return FALSE
;
2685 case bfd_arch_tic30
:
2686 *magicp
= TIC30MAGIC
;
2690 #ifdef TICOFF_DEFAULT_MAGIC
2691 case TICOFF_TARGET_ARCH
:
2692 /* If there's no indication of which version we want, use the default. */
2694 *magicp
= TICOFF_DEFAULT_MAGIC
;
2697 /* We may want to output in a different COFF version. */
2698 switch (abfd
->xvec
->name
[4])
2701 *magicp
= TICOFF0MAGIC
;
2704 *magicp
= TICOFF1MAGIC
;
2707 *magicp
= TICOFF2MAGIC
;
2713 TICOFF_TARGET_MACHINE_SET (flagsp
, bfd_get_mach (abfd
));
2720 * magicp
= ARMPEMAGIC
;
2722 * magicp
= ARMMAGIC
;
2725 if (APCS_SET (abfd
))
2727 if (APCS_26_FLAG (abfd
))
2728 * flagsp
|= F_APCS26
;
2730 if (APCS_FLOAT_FLAG (abfd
))
2731 * flagsp
|= F_APCS_FLOAT
;
2733 if (PIC_FLAG (abfd
))
2736 if (INTERWORK_SET (abfd
) && INTERWORK_FLAG (abfd
))
2737 * flagsp
|= F_INTERWORK
;
2738 switch (bfd_get_mach (abfd
))
2740 case bfd_mach_arm_2
: * flagsp
|= F_ARM_2
; break;
2741 case bfd_mach_arm_2a
: * flagsp
|= F_ARM_2a
; break;
2742 case bfd_mach_arm_3
: * flagsp
|= F_ARM_3
; break;
2743 case bfd_mach_arm_3M
: * flagsp
|= F_ARM_3M
; break;
2744 case bfd_mach_arm_4
: * flagsp
|= F_ARM_4
; break;
2745 case bfd_mach_arm_4T
: * flagsp
|= F_ARM_4T
; break;
2746 case bfd_mach_arm_5
: * flagsp
|= F_ARM_5
; break;
2747 /* FIXME: we do not have F_ARM vaues greater than F_ARM_5.
2748 See also the comment in coff_set_arch_mach_hook(). */
2749 case bfd_mach_arm_5T
: * flagsp
|= F_ARM_5
; break;
2750 case bfd_mach_arm_5TE
: * flagsp
|= F_ARM_5
; break;
2751 case bfd_mach_arm_XScale
: * flagsp
|= F_ARM_5
; break;
2757 case bfd_arch_powerpc
:
2762 #if defined(I386MAGIC) || defined(AMD64MAGIC)
2764 #if defined(I386MAGIC)
2765 *magicp
= I386MAGIC
;
2768 /* Just overwrite the usual value if we're doing Lynx. */
2769 *magicp
= LYNXCOFFMAGIC
;
2771 #if defined AMD64MAGIC
2772 *magicp
= AMD64MAGIC
;
2779 *magicp
= IA64MAGIC
;
2783 #ifdef SH_ARCH_MAGIC_BIG
2785 #ifdef COFF_IMAGE_WITH_PE
2786 *magicp
= SH_ARCH_MAGIC_WINCE
;
2788 if (bfd_big_endian (abfd
))
2789 *magicp
= SH_ARCH_MAGIC_BIG
;
2791 *magicp
= SH_ARCH_MAGIC_LITTLE
;
2796 #ifdef MIPS_ARCH_MAGIC_WINCE
2798 *magicp
= MIPS_ARCH_MAGIC_WINCE
;
2803 case bfd_arch_sparc
:
2804 *magicp
= SPARCMAGIC
;
2806 /* Just overwrite the usual value if we're doing Lynx. */
2807 *magicp
= LYNXCOFFMAGIC
;
2813 case bfd_arch_rs6000
:
2815 case bfd_arch_powerpc
:
2817 BFD_ASSERT (bfd_get_flavour (abfd
) == bfd_target_xcoff_flavour
);
2818 *magicp
= bfd_xcoff_magic_number (abfd
);
2823 case bfd_arch_mcore
:
2824 * magicp
= MCOREMAGIC
;
2828 default: /* Unknown architecture. */
2829 /* Fall through to "return FALSE" below, to avoid
2830 "statement never reached" errors on the one below. */
2838 coff_set_arch_mach (bfd
* abfd
,
2839 enum bfd_architecture arch
,
2840 unsigned long machine
)
2843 unsigned short dummy2
;
2845 if (! bfd_default_set_arch_mach (abfd
, arch
, machine
))
2848 if (arch
!= bfd_arch_unknown
2849 && ! coff_set_flags (abfd
, &dummy1
, &dummy2
))
2850 return FALSE
; /* We can't represent this type. */
2852 return TRUE
; /* We're easy... */
2855 #ifdef COFF_IMAGE_WITH_PE
2857 /* This is used to sort sections by VMA, as required by PE image
2861 sort_by_secaddr (const void * arg1
, const void * arg2
)
2863 const asection
*a
= *(const asection
**) arg1
;
2864 const asection
*b
= *(const asection
**) arg2
;
2866 if (a
->vma
< b
->vma
)
2868 else if (a
->vma
> b
->vma
)
2874 #endif /* COFF_IMAGE_WITH_PE */
2876 /* Calculate the file position for each section. */
2878 #define ALIGN_SECTIONS_IN_FILE
2880 #undef ALIGN_SECTIONS_IN_FILE
2884 coff_compute_section_file_positions (bfd
* abfd
)
2887 file_ptr sofar
= bfd_coff_filhsz (abfd
);
2888 bfd_boolean align_adjust
;
2889 unsigned int target_index
;
2890 #ifdef ALIGN_SECTIONS_IN_FILE
2891 asection
*previous
= NULL
;
2895 #ifdef COFF_IMAGE_WITH_PE
2898 if (coff_data (abfd
)->link_info
2899 || (pe_data (abfd
) && pe_data (abfd
)->pe_opthdr
.FileAlignment
))
2901 page_size
= pe_data (abfd
)->pe_opthdr
.FileAlignment
;
2903 /* If no file alignment has been set, default to one.
2904 This repairs 'ld -r' for arm-wince-pe target. */
2908 /* PR 17512: file: 0ac816d3. */
2911 bfd_set_error (bfd_error_file_too_big
);
2913 /* xgettext:c-format */
2914 (_("%pB: page size is too large (0x%x)"), abfd
, page_size
);
2919 page_size
= PE_DEF_FILE_ALIGNMENT
;
2921 #ifdef COFF_PAGE_SIZE
2922 int page_size
= COFF_PAGE_SIZE
;
2927 /* On XCOFF, if we have symbols, set up the .debug section. */
2928 if (bfd_get_symcount (abfd
) > 0)
2931 bfd_size_type i
, symcount
;
2935 symcount
= bfd_get_symcount (abfd
);
2936 for (symp
= abfd
->outsymbols
, i
= 0; i
< symcount
; symp
++, i
++)
2938 coff_symbol_type
*cf
;
2940 cf
= coff_symbol_from (*symp
);
2942 && cf
->native
!= NULL
2943 && cf
->native
->is_sym
2944 && SYMNAME_IN_DEBUG (&cf
->native
->u
.syment
))
2948 len
= strlen (bfd_asymbol_name (*symp
));
2949 if (len
> SYMNMLEN
|| bfd_coff_force_symnames_in_strings (abfd
))
2950 sz
+= len
+ 1 + bfd_coff_debug_string_prefix_length (abfd
);
2957 dsec
= bfd_make_section_old_way (abfd
, DOT_DEBUG
);
2961 dsec
->flags
|= SEC_HAS_CONTENTS
;
2966 if (bfd_get_start_address (abfd
))
2967 /* A start address may have been added to the original file. In this
2968 case it will need an optional header to record it. */
2969 abfd
->flags
|= EXEC_P
;
2971 if (abfd
->flags
& EXEC_P
)
2972 sofar
+= bfd_coff_aoutsz (abfd
);
2974 else if (xcoff_data (abfd
)->full_aouthdr
)
2975 sofar
+= bfd_coff_aoutsz (abfd
);
2977 sofar
+= SMALL_AOUTSZ
;
2980 sofar
+= abfd
->section_count
* bfd_coff_scnhsz (abfd
);
2983 /* XCOFF handles overflows in the reloc and line number count fields
2984 by allocating a new section header to hold the correct counts. */
2985 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
2986 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
2987 sofar
+= bfd_coff_scnhsz (abfd
);
2990 #ifdef COFF_IMAGE_WITH_PE
2992 /* PE requires the sections to be in memory order when listed in
2993 the section headers. It also does not like empty loadable
2994 sections. The sections apparently do not have to be in the
2995 right order in the image file itself, but we do need to get the
2996 target_index values right. */
2999 asection
**section_list
;
3003 #ifdef COFF_PAGE_SIZE
3004 /* Clear D_PAGED if section alignment is smaller than
3006 if (pe_data (abfd
)->pe_opthdr
.SectionAlignment
< COFF_PAGE_SIZE
)
3007 abfd
->flags
&= ~D_PAGED
;
3011 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3014 /* We allocate an extra cell to simplify the final loop. */
3015 amt
= sizeof (struct asection
*) * (count
+ 1);
3016 section_list
= (asection
**) bfd_malloc (amt
);
3017 if (section_list
== NULL
)
3021 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3023 section_list
[i
] = current
;
3026 section_list
[i
] = NULL
;
3028 qsort (section_list
, count
, sizeof (asection
*), sort_by_secaddr
);
3030 /* Rethread the linked list into sorted order; at the same time,
3031 assign target_index values. */
3033 abfd
->sections
= NULL
;
3034 abfd
->section_last
= NULL
;
3035 for (i
= 0; i
< count
; i
++)
3037 current
= section_list
[i
];
3038 bfd_section_list_append (abfd
, current
);
3040 /* Later, if the section has zero size, we'll be throwing it
3041 away, so we don't want to number it now. Note that having
3042 a zero size and having real contents are different
3043 concepts: .bss has no contents, but (usually) non-zero
3045 if (current
->size
== 0)
3047 /* Discard. However, it still might have (valid) symbols
3048 in it, so arbitrarily set it to section 1 (indexing is
3049 1-based here; usually .text). __end__ and other
3050 contents of .endsection really have this happen.
3051 FIXME: This seems somewhat dubious. */
3052 current
->target_index
= 1;
3055 current
->target_index
= target_index
++;
3058 free (section_list
);
3060 #else /* ! COFF_IMAGE_WITH_PE */
3062 /* Set the target_index field. */
3064 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3065 current
->target_index
= target_index
++;
3067 #endif /* ! COFF_IMAGE_WITH_PE */
3069 if (target_index
>= bfd_coff_max_nscns (abfd
))
3071 bfd_set_error (bfd_error_file_too_big
);
3073 /* xgettext:c-format */
3074 (_("%pB: too many sections (%d)"), abfd
, target_index
);
3078 align_adjust
= FALSE
;
3079 for (current
= abfd
->sections
;
3081 current
= current
->next
)
3083 #ifdef COFF_IMAGE_WITH_PE
3084 /* With PE we have to pad each section to be a multiple of its
3085 page size too, and remember both sizes. */
3086 if (coff_section_data (abfd
, current
) == NULL
)
3088 size_t amt
= sizeof (struct coff_section_tdata
);
3090 current
->used_by_bfd
= bfd_zalloc (abfd
, amt
);
3091 if (current
->used_by_bfd
== NULL
)
3094 if (pei_section_data (abfd
, current
) == NULL
)
3096 size_t amt
= sizeof (struct pei_section_tdata
);
3098 coff_section_data (abfd
, current
)->tdata
= bfd_zalloc (abfd
, amt
);
3099 if (coff_section_data (abfd
, current
)->tdata
== NULL
)
3102 if (pei_section_data (abfd
, current
)->virt_size
== 0)
3103 pei_section_data (abfd
, current
)->virt_size
= current
->size
;
3106 /* Only deal with sections which have contents. */
3107 if (!(current
->flags
& SEC_HAS_CONTENTS
))
3110 current
->rawsize
= current
->size
;
3112 #ifdef COFF_IMAGE_WITH_PE
3113 /* Make sure we skip empty sections in a PE image. */
3114 if (current
->size
== 0)
3118 /* Align the sections in the file to the same boundary on
3119 which they are aligned in virtual memory. */
3120 #ifdef ALIGN_SECTIONS_IN_FILE
3121 if ((abfd
->flags
& EXEC_P
) != 0)
3123 /* Make sure this section is aligned on the right boundary - by
3124 padding the previous section up if necessary. */
3127 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
3130 /* Make sure the file offset and the vma of .text/.data are at the
3131 same page offset, so that the file can be mmap'ed without being
3132 relocated. Failing that, AIX is able to load and execute the
3133 program, but it will be silently relocated (possible as
3134 executables are PIE). But the relocation is slightly costly and
3135 complexify the use of addr2line or gdb. So better to avoid it,
3136 like does the native linker. Usually gnu ld makes sure that
3137 the vma of .text is the file offset so this issue shouldn't
3138 appear unless you are stripping such an executable.
3140 AIX loader checks the text section alignment of (vma - filepos),
3141 and the native linker doesn't try to align the text sections.
3144 0 .text 000054cc 10000128 10000128 00000128 2**5
3145 CONTENTS, ALLOC, LOAD, CODE
3148 if (!strcmp (current
->name
, _TEXT
)
3149 || !strcmp (current
->name
, _DATA
))
3151 bfd_vma align
= 4096;
3152 bfd_vma sofar_off
= sofar
% align
;
3153 bfd_vma vma_off
= current
->vma
% align
;
3155 if (vma_off
> sofar_off
)
3156 sofar
+= vma_off
- sofar_off
;
3157 else if (vma_off
< sofar_off
)
3158 sofar
+= align
+ vma_off
- sofar_off
;
3161 if (previous
!= NULL
)
3162 previous
->size
+= sofar
- old_sofar
;
3167 /* In demand paged files the low order bits of the file offset
3168 must match the low order bits of the virtual address. */
3169 #ifdef COFF_PAGE_SIZE
3170 if ((abfd
->flags
& D_PAGED
) != 0
3171 && (current
->flags
& SEC_ALLOC
) != 0)
3172 sofar
+= (current
->vma
- (bfd_vma
) sofar
) % page_size
;
3174 current
->filepos
= sofar
;
3176 #ifdef COFF_IMAGE_WITH_PE
3177 /* Set the padded size. */
3178 current
->size
= (current
->size
+ page_size
- 1) & -page_size
;
3181 sofar
+= current
->size
;
3183 #ifdef ALIGN_SECTIONS_IN_FILE
3184 /* Make sure that this section is of the right size too. */
3185 if ((abfd
->flags
& EXEC_P
) == 0)
3187 bfd_size_type old_size
;
3189 old_size
= current
->size
;
3190 current
->size
= BFD_ALIGN (current
->size
,
3191 1 << current
->alignment_power
);
3192 align_adjust
= current
->size
!= old_size
;
3193 sofar
+= current
->size
- old_size
;
3198 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
3199 align_adjust
= sofar
!= old_sofar
;
3200 current
->size
+= sofar
- old_sofar
;
3204 #ifdef COFF_IMAGE_WITH_PE
3205 /* For PE we need to make sure we pad out to the aligned
3206 size, in case the caller only writes out data to the
3208 if (pei_section_data (abfd
, current
)->virt_size
< current
->size
)
3209 align_adjust
= TRUE
;
3213 /* Force .lib sections to start at zero. The vma is then
3214 incremented in coff_set_section_contents. This is right for
3216 if (strcmp (current
->name
, _LIB
) == 0)
3217 bfd_set_section_vma (current
, 0);
3220 #ifdef ALIGN_SECTIONS_IN_FILE
3225 /* It is now safe to write to the output file. If we needed an
3226 alignment adjustment for the last section, then make sure that
3227 there is a byte at offset sofar. If there are no symbols and no
3228 relocs, then nothing follows the last section. If we don't force
3229 the last byte out, then the file may appear to be truncated. */
3235 if (bfd_seek (abfd
, sofar
- 1, SEEK_SET
) != 0
3236 || bfd_bwrite (&b
, (bfd_size_type
) 1, abfd
) != 1)
3240 /* Make sure the relocations are aligned. We don't need to make
3241 sure that this byte exists, because it will only matter if there
3242 really are relocs. */
3243 sofar
= BFD_ALIGN (sofar
, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER
);
3245 obj_relocbase (abfd
) = sofar
;
3246 abfd
->output_has_begun
= TRUE
;
3251 #ifdef COFF_IMAGE_WITH_PE
3253 static unsigned int pelength
;
3254 static unsigned int peheader
;
3257 coff_read_word (bfd
*abfd
, unsigned int *value
)
3262 status
= bfd_bread (b
, (bfd_size_type
) 2, abfd
);
3270 *value
= (unsigned int) b
[0];
3272 *value
= (unsigned int) (b
[0] + (b
[1] << 8));
3274 pelength
+= (unsigned int) status
;
3280 coff_compute_checksum (bfd
*abfd
)
3282 bfd_boolean more_data
;
3289 filepos
= (file_ptr
) 0;
3293 if (bfd_seek (abfd
, filepos
, SEEK_SET
) != 0)
3296 more_data
= coff_read_word (abfd
, &value
);
3298 total
= 0xffff & (total
+ (total
>> 0x10));
3303 return (0xffff & (total
+ (total
>> 0x10)));
3307 coff_apply_checksum (bfd
*abfd
)
3309 unsigned int computed
;
3310 unsigned int checksum
= 0;
3312 if (bfd_seek (abfd
, 0x3c, SEEK_SET
) != 0)
3315 if (!coff_read_word (abfd
, &peheader
))
3318 if (bfd_seek (abfd
, peheader
+ 0x58, SEEK_SET
) != 0)
3322 bfd_bwrite (&checksum
, (bfd_size_type
) 4, abfd
);
3324 if (bfd_seek (abfd
, peheader
, SEEK_SET
) != 0)
3327 computed
= coff_compute_checksum (abfd
);
3329 checksum
= computed
+ pelength
;
3331 if (bfd_seek (abfd
, peheader
+ 0x58, SEEK_SET
) != 0)
3334 bfd_bwrite (&checksum
, (bfd_size_type
) 4, abfd
);
3339 #endif /* COFF_IMAGE_WITH_PE */
3342 coff_write_object_contents (bfd
* abfd
)
3345 bfd_boolean hasrelocs
= FALSE
;
3346 bfd_boolean haslinno
= FALSE
;
3347 #ifdef COFF_IMAGE_WITH_PE
3348 bfd_boolean hasdebug
= FALSE
;
3351 file_ptr reloc_base
;
3352 file_ptr lineno_base
;
3354 unsigned long reloc_size
= 0, reloc_count
= 0;
3355 unsigned long lnno_size
= 0;
3356 bfd_boolean long_section_names
;
3357 asection
*text_sec
= NULL
;
3358 asection
*data_sec
= NULL
;
3359 asection
*bss_sec
= NULL
;
3360 struct internal_filehdr internal_f
;
3361 struct internal_aouthdr internal_a
;
3362 #ifdef COFF_LONG_SECTION_NAMES
3363 size_t string_size
= STRING_SIZE_SIZE
;
3366 bfd_set_error (bfd_error_system_call
);
3368 /* Make a pass through the symbol table to count line number entries and
3369 put them into the correct asections. */
3370 lnno_size
= coff_count_linenumbers (abfd
) * bfd_coff_linesz (abfd
);
3372 if (! abfd
->output_has_begun
)
3374 if (! coff_compute_section_file_positions (abfd
))
3378 reloc_base
= obj_relocbase (abfd
);
3380 /* Work out the size of the reloc and linno areas. */
3382 for (current
= abfd
->sections
; current
!= NULL
; current
=
3386 /* We store the actual reloc count in the first reloc's addr. */
3387 if (obj_pe (abfd
) && current
->reloc_count
>= 0xffff)
3390 reloc_count
+= current
->reloc_count
;
3393 reloc_size
= reloc_count
* bfd_coff_relsz (abfd
);
3395 lineno_base
= reloc_base
+ reloc_size
;
3396 sym_base
= lineno_base
+ lnno_size
;
3398 /* Indicate in each section->line_filepos its actual file address. */
3399 for (current
= abfd
->sections
; current
!= NULL
; current
=
3402 if (current
->lineno_count
)
3404 current
->line_filepos
= lineno_base
;
3405 current
->moving_line_filepos
= lineno_base
;
3406 lineno_base
+= current
->lineno_count
* bfd_coff_linesz (abfd
);
3409 current
->line_filepos
= 0;
3411 if (current
->reloc_count
)
3413 current
->rel_filepos
= reloc_base
;
3414 reloc_base
+= current
->reloc_count
* bfd_coff_relsz (abfd
);
3416 /* Extra reloc to hold real count. */
3417 if (obj_pe (abfd
) && current
->reloc_count
>= 0xffff)
3418 reloc_base
+= bfd_coff_relsz (abfd
);
3422 current
->rel_filepos
= 0;
3425 /* Write section headers to the file. */
3426 internal_f
.f_nscns
= 0;
3428 if ((abfd
->flags
& EXEC_P
) != 0)
3429 scn_base
= bfd_coff_filhsz (abfd
) + bfd_coff_aoutsz (abfd
);
3432 scn_base
= bfd_coff_filhsz (abfd
);
3435 if (xcoff_data (abfd
)->full_aouthdr
)
3436 scn_base
+= bfd_coff_aoutsz (abfd
);
3438 scn_base
+= SMALL_AOUTSZ
;
3443 if (bfd_seek (abfd
, scn_base
, SEEK_SET
) != 0)
3446 long_section_names
= FALSE
;
3447 for (current
= abfd
->sections
;
3449 current
= current
->next
)
3451 struct internal_scnhdr section
;
3452 #ifdef COFF_IMAGE_WITH_PE
3453 bfd_boolean is_reloc_section
= FALSE
;
3455 if (strcmp (current
->name
, DOT_RELOC
) == 0)
3457 is_reloc_section
= TRUE
;
3459 pe_data (abfd
)->has_reloc_section
= 1;
3463 internal_f
.f_nscns
++;
3465 strncpy (section
.s_name
, current
->name
, SCNNMLEN
);
3467 #ifdef COFF_LONG_SECTION_NAMES
3468 /* Handle long section names as in PE. This must be compatible
3469 with the code in coff_write_symbols and _bfd_coff_final_link. */
3470 if (bfd_coff_long_section_names (abfd
))
3474 len
= strlen (current
->name
);
3477 /* The s_name field is defined to be NUL-padded but need not be
3478 NUL-terminated. We use a temporary buffer so that we can still
3479 sprintf all eight chars without splatting a terminating NUL
3480 over the first byte of the following member (s_paddr). */
3481 /* PR 21096: The +20 is to stop a bogus warning from gcc7 about
3482 a possible buffer overflow. */
3483 char s_name_buf
[SCNNMLEN
+ 1 + 20];
3485 /* An inherent limitation of the /nnnnnnn notation used to indicate
3486 the offset of the long name in the string table is that we
3487 cannot address entries beyone the ten million byte boundary. */
3488 if (string_size
>= 10000000)
3490 bfd_set_error (bfd_error_file_too_big
);
3492 /* xgettext:c-format */
3493 (_("%pB: section %pA: string table overflow at offset %ld"),
3494 abfd
, current
, (unsigned long) string_size
);
3498 /* We do not need to use snprintf here as we have already verfied
3499 that string_size is not too big, plus we have an overlarge
3500 buffer, just in case. */
3501 sprintf (s_name_buf
, "/%lu", (unsigned long) string_size
);
3502 /* Then strncpy takes care of any padding for us. */
3503 strncpy (section
.s_name
, s_name_buf
, SCNNMLEN
);
3504 string_size
+= len
+ 1;
3505 long_section_names
= TRUE
;
3511 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3512 Ian Taylor <ian@cygnus.com>. */
3513 if (strcmp (current
->name
, _LIB
) == 0)
3514 section
.s_vaddr
= 0;
3517 section
.s_vaddr
= current
->vma
;
3518 section
.s_paddr
= current
->lma
;
3519 section
.s_size
= current
->size
;
3520 #ifdef coff_get_section_load_page
3521 section
.s_page
= coff_get_section_load_page (current
);
3527 section
.s_paddr
= 0;
3529 #ifdef COFF_IMAGE_WITH_PE
3530 /* Reminder: s_paddr holds the virtual size of the section. */
3531 if (coff_section_data (abfd
, current
) != NULL
3532 && pei_section_data (abfd
, current
) != NULL
)
3533 section
.s_paddr
= pei_section_data (abfd
, current
)->virt_size
;
3535 section
.s_paddr
= 0;
3538 /* If this section has no size or is unloadable then the scnptr
3540 if (current
->size
== 0
3541 || (current
->flags
& (SEC_LOAD
| SEC_HAS_CONTENTS
)) == 0)
3542 section
.s_scnptr
= 0;
3544 section
.s_scnptr
= current
->filepos
;
3546 section
.s_relptr
= current
->rel_filepos
;
3547 section
.s_lnnoptr
= current
->line_filepos
;
3548 section
.s_nreloc
= current
->reloc_count
;
3549 section
.s_nlnno
= current
->lineno_count
;
3550 #ifndef COFF_IMAGE_WITH_PE
3551 /* In PEI, relocs come in the .reloc section. */
3552 if (current
->reloc_count
!= 0)
3555 if (current
->lineno_count
!= 0)
3557 #ifdef COFF_IMAGE_WITH_PE
3558 if ((current
->flags
& SEC_DEBUGGING
) != 0
3559 && ! is_reloc_section
)
3565 /* Indicate the use of an XCOFF overflow section header. */
3566 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3568 section
.s_nreloc
= 0xffff;
3569 section
.s_nlnno
= 0xffff;
3574 section
.s_flags
= sec_to_styp_flags (current
->name
, current
->flags
);
3576 if (!strcmp (current
->name
, _TEXT
))
3578 else if (!strcmp (current
->name
, _DATA
))
3580 else if (!strcmp (current
->name
, _BSS
))
3583 #ifdef COFF_ENCODE_ALIGNMENT
3584 COFF_ENCODE_ALIGNMENT(section
, current
->alignment_power
);
3585 if ((unsigned int)COFF_DECODE_ALIGNMENT(section
.s_flags
)
3586 != current
->alignment_power
)
3588 bfd_boolean warn
= coff_data (abfd
)->link_info
3589 && !bfd_link_relocatable (coff_data (abfd
)->link_info
);
3592 /* xgettext:c-format */
3593 (_("%pB:%s section %s: alignment 2**%u not representable"),
3594 abfd
, warn
? " warning:" : "", current
->name
,
3595 current
->alignment_power
);
3598 bfd_set_error (bfd_error_nonrepresentable_section
);
3604 #ifdef COFF_IMAGE_WITH_PE
3605 /* Suppress output of the sections if they are null. ld
3606 includes the bss and data sections even if there is no size
3607 assigned to them. NT loader doesn't like it if these section
3608 headers are included if the sections themselves are not
3609 needed. See also coff_compute_section_file_positions. */
3610 if (section
.s_size
== 0)
3611 internal_f
.f_nscns
--;
3616 bfd_size_type amt
= bfd_coff_scnhsz (abfd
);
3618 if (coff_swap_scnhdr_out (abfd
, §ion
, &buff
) == 0
3619 || bfd_bwrite (& buff
, amt
, abfd
) != amt
)
3624 /* PE stores COMDAT section information in the symbol table. If
3625 this section is supposed to have some COMDAT info, track down
3626 the symbol in the symbol table and modify it. */
3627 if ((current
->flags
& SEC_LINK_ONCE
) != 0)
3629 unsigned int i
, count
;
3631 coff_symbol_type
*csym
= NULL
;
3635 count
= bfd_get_symcount (abfd
);
3636 for (i
= 0, psym
= abfd
->outsymbols
; i
< count
; i
++, psym
++)
3638 if ((*psym
)->section
!= current
)
3641 /* Remember the location of the first symbol in this
3643 if (psymsec
== NULL
)
3646 /* See if this is the section symbol. */
3647 if (strcmp ((*psym
)->name
, current
->name
) == 0)
3649 csym
= coff_symbol_from (*psym
);
3651 || csym
->native
== NULL
3652 || ! csym
->native
->is_sym
3653 || csym
->native
->u
.syment
.n_numaux
< 1
3654 || csym
->native
->u
.syment
.n_sclass
!= C_STAT
3655 || csym
->native
->u
.syment
.n_type
!= T_NULL
)
3658 /* Here *PSYM is the section symbol for CURRENT. */
3665 Note that we might not if we're converting the file from
3666 some other object file format. */
3669 combined_entry_type
*aux
;
3671 /* We don't touch the x_checksum field. The
3672 x_associated field is not currently supported. */
3674 aux
= csym
->native
+ 1;
3675 BFD_ASSERT (! aux
->is_sym
);
3676 switch (current
->flags
& SEC_LINK_DUPLICATES
)
3678 case SEC_LINK_DUPLICATES_DISCARD
:
3679 aux
->u
.auxent
.x_scn
.x_comdat
= IMAGE_COMDAT_SELECT_ANY
;
3682 case SEC_LINK_DUPLICATES_ONE_ONLY
:
3683 aux
->u
.auxent
.x_scn
.x_comdat
=
3684 IMAGE_COMDAT_SELECT_NODUPLICATES
;
3687 case SEC_LINK_DUPLICATES_SAME_SIZE
:
3688 aux
->u
.auxent
.x_scn
.x_comdat
=
3689 IMAGE_COMDAT_SELECT_SAME_SIZE
;
3692 case SEC_LINK_DUPLICATES_SAME_CONTENTS
:
3693 aux
->u
.auxent
.x_scn
.x_comdat
=
3694 IMAGE_COMDAT_SELECT_EXACT_MATCH
;
3698 /* The COMDAT symbol must be the first symbol from this
3699 section in the symbol table. In order to make this
3700 work, we move the COMDAT symbol before the first
3701 symbol we found in the search above. It's OK to
3702 rearrange the symbol table at this point, because
3703 coff_renumber_symbols is going to rearrange it
3704 further and fix up all the aux entries. */
3705 if (psym
!= psymsec
)
3711 for (pcopy
= psym
; pcopy
> psymsec
; pcopy
--)
3712 pcopy
[0] = pcopy
[-1];
3717 #endif /* COFF_WITH_PE */
3722 /* XCOFF handles overflows in the reloc and line number count fields
3723 by creating a new section header to hold the correct values. */
3724 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3726 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3728 struct internal_scnhdr scnhdr
;
3732 internal_f
.f_nscns
++;
3733 memcpy (scnhdr
.s_name
, ".ovrflo", 8);
3734 scnhdr
.s_paddr
= current
->reloc_count
;
3735 scnhdr
.s_vaddr
= current
->lineno_count
;
3737 scnhdr
.s_scnptr
= 0;
3738 scnhdr
.s_relptr
= current
->rel_filepos
;
3739 scnhdr
.s_lnnoptr
= current
->line_filepos
;
3740 scnhdr
.s_nreloc
= current
->target_index
;
3741 scnhdr
.s_nlnno
= current
->target_index
;
3742 scnhdr
.s_flags
= STYP_OVRFLO
;
3743 amt
= bfd_coff_scnhsz (abfd
);
3744 if (coff_swap_scnhdr_out (abfd
, &scnhdr
, &buff
) == 0
3745 || bfd_bwrite (& buff
, amt
, abfd
) != amt
)
3752 /* OK, now set up the filehdr... */
3754 /* Don't include the internal abs section in the section count */
3756 /* We will NOT put a fucking timestamp in the header here. Every time you
3757 put it back, I will come in and take it out again. I'm sorry. This
3758 field does not belong here. We fill it with a 0 so it compares the
3759 same but is not a reasonable time. -- gnu@cygnus.com */
3760 internal_f
.f_timdat
= 0;
3761 internal_f
.f_flags
= 0;
3763 if (abfd
->flags
& EXEC_P
)
3764 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3767 internal_f
.f_opthdr
= 0;
3770 if (xcoff_data (abfd
)->full_aouthdr
)
3771 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3773 internal_f
.f_opthdr
= SMALL_AOUTSZ
;
3779 internal_f
.f_flags
|= F_RELFLG
;
3781 internal_f
.f_flags
|= F_LNNO
;
3782 if (abfd
->flags
& EXEC_P
)
3783 internal_f
.f_flags
|= F_EXEC
;
3784 #ifdef COFF_IMAGE_WITH_PE
3786 internal_f
.f_flags
|= IMAGE_FILE_DEBUG_STRIPPED
;
3787 if (pe_data (abfd
)->real_flags
& IMAGE_FILE_LARGE_ADDRESS_AWARE
)
3788 internal_f
.f_flags
|= IMAGE_FILE_LARGE_ADDRESS_AWARE
;
3791 #ifndef COFF_WITH_pex64
3793 internal_f
.f_flags
|= IMAGE_FILE_32BIT_MACHINE
;
3795 if (bfd_little_endian (abfd
))
3796 internal_f
.f_flags
|= F_AR32WR
;
3798 internal_f
.f_flags
|= F_AR32W
;
3803 /* Target id is used in TI COFF v1 and later; COFF0 won't use this field,
3804 but it doesn't hurt to set it internally. */
3805 internal_f
.f_target_id
= TI_TARGET_ID
;
3808 /* FIXME, should do something about the other byte orders and
3812 if ((abfd
->flags
& DYNAMIC
) != 0)
3813 internal_f
.f_flags
|= F_SHROBJ
;
3814 if (bfd_get_section_by_name (abfd
, _LOADER
) != NULL
)
3815 internal_f
.f_flags
|= F_DYNLOAD
;
3818 memset (&internal_a
, 0, sizeof internal_a
);
3820 /* Set up architecture-dependent stuff. */
3822 unsigned int magic
= 0;
3823 unsigned short flags
= 0;
3825 coff_set_flags (abfd
, &magic
, &flags
);
3826 internal_f
.f_magic
= magic
;
3827 internal_f
.f_flags
|= flags
;
3828 /* ...and the "opt"hdr... */
3830 #ifdef TICOFF_AOUT_MAGIC
3831 internal_a
.magic
= TICOFF_AOUT_MAGIC
;
3832 #define __A_MAGIC_SET__
3836 #define __A_MAGIC_SET__
3837 internal_a
.magic
= ZMAGIC
;
3841 #define __A_MAGIC_SET__
3842 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
3845 #if defined MCORE_PE
3846 #define __A_MAGIC_SET__
3847 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
3851 #define __A_MAGIC_SET__
3853 internal_a
.magic
= LYNXCOFFMAGIC
;
3855 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR64_MAGIC
;
3857 internal_a
.magic
= ZMAGIC
;
3862 #define __A_MAGIC_SET__
3863 internal_a
.magic
= PE32PMAGIC
;
3867 #define __A_MAGIC_SET__
3869 internal_a
.magic
= LYNXCOFFMAGIC
;
3874 #define __A_MAGIC_SET__
3875 internal_a
.magic
= (abfd
->flags
& D_PAGED
) ? RS6K_AOUTHDR_ZMAGIC
:
3876 (abfd
->flags
& WP_TEXT
) ? RS6K_AOUTHDR_NMAGIC
:
3877 RS6K_AOUTHDR_OMAGIC
;
3880 #if defined(SH) && defined(COFF_WITH_PE)
3881 #define __A_MAGIC_SET__
3882 internal_a
.magic
= SH_PE_MAGIC
;
3885 #if defined(MIPS) && defined(COFF_WITH_PE)
3886 #define __A_MAGIC_SET__
3887 internal_a
.magic
= MIPS_PE_MAGIC
;
3890 #ifndef __A_MAGIC_SET__
3891 #include "Your aouthdr magic number is not being set!"
3893 #undef __A_MAGIC_SET__
3897 /* FIXME: Does anybody ever set this to another value? */
3898 internal_a
.vstamp
= 0;
3900 /* Now should write relocs, strings, syms. */
3901 obj_sym_filepos (abfd
) = sym_base
;
3903 if (bfd_get_symcount (abfd
) != 0)
3907 if (!coff_renumber_symbols (abfd
, &firstundef
))
3909 coff_mangle_symbols (abfd
);
3910 if (! coff_write_symbols (abfd
))
3912 if (! coff_write_linenumbers (abfd
))
3914 if (! coff_write_relocs (abfd
, firstundef
))
3917 #ifdef COFF_LONG_SECTION_NAMES
3918 else if (long_section_names
&& ! obj_coff_strings_written (abfd
))
3920 /* If we have long section names we have to write out the string
3921 table even if there are no symbols. */
3922 if (! coff_write_symbols (abfd
))
3926 #ifdef COFF_IMAGE_WITH_PE
3928 else if ((abfd
->flags
& EXEC_P
) != 0)
3932 /* PowerPC PE appears to require that all executable files be
3933 rounded up to the page size. */
3936 (file_ptr
) BFD_ALIGN (sym_base
, COFF_PAGE_SIZE
) - 1,
3938 || bfd_bwrite (&b
, (bfd_size_type
) 1, abfd
) != 1)
3944 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
3945 backend linker, and obj_raw_syment_count is not valid until after
3946 coff_write_symbols is called. */
3947 if (obj_raw_syment_count (abfd
) != 0)
3949 internal_f
.f_symptr
= sym_base
;
3951 /* AIX appears to require that F_RELFLG not be set if there are
3952 local symbols but no relocations. */
3953 internal_f
.f_flags
&=~ F_RELFLG
;
3958 if (long_section_names
)
3959 internal_f
.f_symptr
= sym_base
;
3961 internal_f
.f_symptr
= 0;
3962 internal_f
.f_flags
|= F_LSYMS
;
3967 internal_a
.tsize
= text_sec
->size
;
3968 internal_a
.text_start
= internal_a
.tsize
? text_sec
->vma
: 0;
3972 internal_a
.dsize
= data_sec
->size
;
3973 internal_a
.data_start
= internal_a
.dsize
? data_sec
->vma
: 0;
3977 internal_a
.bsize
= bss_sec
->size
;
3978 if (internal_a
.bsize
&& bss_sec
->vma
< internal_a
.data_start
)
3979 internal_a
.data_start
= bss_sec
->vma
;
3982 internal_a
.entry
= bfd_get_start_address (abfd
);
3983 internal_f
.f_nsyms
= obj_raw_syment_count (abfd
);
3986 if (xcoff_data (abfd
)->full_aouthdr
)
3989 asection
*loader_sec
;
3991 internal_a
.vstamp
= 1;
3993 internal_a
.o_snentry
= xcoff_data (abfd
)->snentry
;
3994 if (internal_a
.o_snentry
== 0)
3995 internal_a
.entry
= (bfd_vma
) -1;
3997 if (text_sec
!= NULL
)
3999 internal_a
.o_sntext
= text_sec
->target_index
;
4000 internal_a
.o_algntext
= bfd_section_alignment (text_sec
);
4004 internal_a
.o_sntext
= 0;
4005 internal_a
.o_algntext
= 0;
4007 if (data_sec
!= NULL
)
4009 internal_a
.o_sndata
= data_sec
->target_index
;
4010 internal_a
.o_algndata
= bfd_section_alignment (data_sec
);
4014 internal_a
.o_sndata
= 0;
4015 internal_a
.o_algndata
= 0;
4017 loader_sec
= bfd_get_section_by_name (abfd
, ".loader");
4018 if (loader_sec
!= NULL
)
4019 internal_a
.o_snloader
= loader_sec
->target_index
;
4021 internal_a
.o_snloader
= 0;
4022 if (bss_sec
!= NULL
)
4023 internal_a
.o_snbss
= bss_sec
->target_index
;
4025 internal_a
.o_snbss
= 0;
4027 toc
= xcoff_data (abfd
)->toc
;
4028 internal_a
.o_toc
= toc
;
4029 internal_a
.o_sntoc
= xcoff_data (abfd
)->sntoc
;
4031 internal_a
.o_modtype
= xcoff_data (abfd
)->modtype
;
4032 if (xcoff_data (abfd
)->cputype
!= -1)
4033 internal_a
.o_cputype
= xcoff_data (abfd
)->cputype
;
4036 switch (bfd_get_arch (abfd
))
4038 case bfd_arch_rs6000
:
4039 internal_a
.o_cputype
= 4;
4041 case bfd_arch_powerpc
:
4042 if (bfd_get_mach (abfd
) == bfd_mach_ppc
)
4043 internal_a
.o_cputype
= 3;
4045 internal_a
.o_cputype
= 1;
4051 internal_a
.o_maxstack
= xcoff_data (abfd
)->maxstack
;
4052 internal_a
.o_maxdata
= xcoff_data (abfd
)->maxdata
;
4058 /* After object contents are finalized so we can compute a reasonable hash,
4059 but before header is written so we can update it to point to debug directory. */
4060 struct pe_tdata
*pe
= pe_data (abfd
);
4062 if (pe
->build_id
.after_write_object_contents
!= NULL
)
4063 (*pe
->build_id
.after_write_object_contents
) (abfd
);
4067 /* Now write header. */
4068 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
) != 0)
4073 bfd_size_type amount
= bfd_coff_filhsz (abfd
);
4075 buff
= (char *) bfd_malloc (amount
);
4079 bfd_coff_swap_filehdr_out (abfd
, & internal_f
, buff
);
4080 amount
= bfd_bwrite (buff
, amount
, abfd
);
4084 if (amount
!= bfd_coff_filhsz (abfd
))
4088 if (abfd
->flags
& EXEC_P
)
4090 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
4091 include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */
4093 bfd_size_type amount
= bfd_coff_aoutsz (abfd
);
4095 buff
= (char *) bfd_malloc (amount
);
4099 coff_swap_aouthdr_out (abfd
, & internal_a
, buff
);
4100 amount
= bfd_bwrite (buff
, amount
, abfd
);
4104 if (amount
!= bfd_coff_aoutsz (abfd
))
4107 #ifdef COFF_IMAGE_WITH_PE
4108 if (! coff_apply_checksum (abfd
))
4118 /* XCOFF seems to always write at least a small a.out header. */
4119 coff_swap_aouthdr_out (abfd
, & internal_a
, & buff
);
4120 if (xcoff_data (abfd
)->full_aouthdr
)
4121 size
= bfd_coff_aoutsz (abfd
);
4123 size
= SMALL_AOUTSZ
;
4124 if (bfd_bwrite (& buff
, (bfd_size_type
) size
, abfd
) != size
)
4133 coff_set_section_contents (bfd
* abfd
,
4135 const void * location
,
4137 bfd_size_type count
)
4139 if (! abfd
->output_has_begun
) /* Set by bfd.c handler. */
4141 if (! coff_compute_section_file_positions (abfd
))
4145 #if defined(_LIB) && !defined(TARG_AUX)
4146 /* The physical address field of a .lib section is used to hold the
4147 number of shared libraries in the section. This code counts the
4148 number of sections being written, and increments the lma field
4151 I have found no documentation on the contents of this section.
4152 Experimentation indicates that the section contains zero or more
4153 records, each of which has the following structure:
4155 - a (four byte) word holding the length of this record, in words,
4156 - a word that always seems to be set to "2",
4157 - the path to a shared library, null-terminated and then padded
4158 to a whole word boundary.
4160 bfd_assert calls have been added to alert if an attempt is made
4161 to write a section which doesn't follow these assumptions. The
4162 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
4163 <robertl@arnet.com> (Thanks!).
4165 Gvran Uddeborg <gvran@uddeborg.pp.se>. */
4166 if (strcmp (section
->name
, _LIB
) == 0)
4168 bfd_byte
*rec
, *recend
;
4170 rec
= (bfd_byte
*) location
;
4171 recend
= rec
+ count
;
4172 while (rec
< recend
)
4175 rec
+= bfd_get_32 (abfd
, rec
) * 4;
4178 BFD_ASSERT (rec
== recend
);
4182 /* Don't write out bss sections - one way to do this is to
4183 see if the filepos has not been set. */
4184 if (section
->filepos
== 0)
4187 if (bfd_seek (abfd
, section
->filepos
+ offset
, SEEK_SET
) != 0)
4193 return bfd_bwrite (location
, count
, abfd
) == count
;
4197 buy_and_read (bfd
*abfd
, file_ptr where
,
4198 bfd_size_type nmemb
, bfd_size_type size
)
4202 if (_bfd_mul_overflow (nmemb
, size
, &amt
))
4204 bfd_set_error (bfd_error_file_too_big
);
4207 if (bfd_seek (abfd
, where
, SEEK_SET
) != 0)
4209 return _bfd_alloc_and_read (abfd
, amt
, amt
);
4216 Creating the linenumber table is done by reading in the entire
4217 coff linenumber table, and creating another table for internal use.
4219 A coff linenumber table is structured so that each function
4220 is marked as having a line number of 0. Each line within the
4221 function is an offset from the first line in the function. The
4222 base of the line number information for the table is stored in
4223 the symbol associated with the function.
4225 Note: The PE format uses line number 0 for a flag indicating a
4228 The information is copied from the external to the internal
4229 table, and each symbol which marks a function is marked by
4232 How does this work ?
4236 coff_sort_func_alent (const void * arg1
, const void * arg2
)
4238 const alent
*al1
= *(const alent
**) arg1
;
4239 const alent
*al2
= *(const alent
**) arg2
;
4240 const coff_symbol_type
*s1
= (const coff_symbol_type
*) (al1
->u
.sym
);
4241 const coff_symbol_type
*s2
= (const coff_symbol_type
*) (al2
->u
.sym
);
4243 if (s1
== NULL
|| s2
== NULL
)
4245 if (s1
->symbol
.value
< s2
->symbol
.value
)
4247 else if (s1
->symbol
.value
> s2
->symbol
.value
)
4254 coff_slurp_line_table (bfd
*abfd
, asection
*asect
)
4256 LINENO
*native_lineno
;
4257 alent
*lineno_cache
;
4258 unsigned int counter
;
4260 bfd_vma prev_offset
= 0;
4261 bfd_boolean ordered
= TRUE
;
4262 unsigned int nbr_func
;
4264 bfd_boolean have_func
;
4265 bfd_boolean ret
= TRUE
;
4268 if (asect
->lineno_count
== 0)
4271 BFD_ASSERT (asect
->lineno
== NULL
);
4273 if (asect
->lineno_count
> asect
->size
)
4276 (_("%pB: warning: line number count (%#lx) exceeds section size (%#lx)"),
4277 abfd
, (unsigned long) asect
->lineno_count
, (unsigned long) asect
->size
);
4281 if (_bfd_mul_overflow (asect
->lineno_count
+ 1, sizeof (alent
), &amt
))
4283 bfd_set_error (bfd_error_file_too_big
);
4286 lineno_cache
= (alent
*) bfd_alloc (abfd
, amt
);
4287 if (lineno_cache
== NULL
)
4290 native_lineno
= (LINENO
*) buy_and_read (abfd
, asect
->line_filepos
,
4291 asect
->lineno_count
,
4292 bfd_coff_linesz (abfd
));
4293 if (native_lineno
== NULL
)
4296 (_("%pB: warning: line number table read failed"), abfd
);
4297 bfd_release (abfd
, lineno_cache
);
4301 cache_ptr
= lineno_cache
;
4302 asect
->lineno
= lineno_cache
;
4303 src
= native_lineno
;
4307 for (counter
= 0; counter
< asect
->lineno_count
; counter
++, src
++)
4309 struct internal_lineno dst
;
4311 bfd_coff_swap_lineno_in (abfd
, src
, &dst
);
4312 cache_ptr
->line_number
= dst
.l_lnno
;
4313 /* Appease memory checkers that get all excited about
4314 uninitialised memory when copying alents if u.offset is
4315 larger than u.sym. (64-bit BFD on 32-bit host.) */
4316 memset (&cache_ptr
->u
, 0, sizeof (cache_ptr
->u
));
4318 if (cache_ptr
->line_number
== 0)
4320 combined_entry_type
* ent
;
4321 unsigned long symndx
;
4322 coff_symbol_type
*sym
;
4325 symndx
= dst
.l_addr
.l_symndx
;
4326 if (symndx
>= obj_raw_syment_count (abfd
))
4329 /* xgettext:c-format */
4330 (_("%pB: warning: illegal symbol index 0x%lx in line number entry %d"),
4331 abfd
, symndx
, counter
);
4332 cache_ptr
->line_number
= -1;
4337 ent
= obj_raw_syments (abfd
) + symndx
;
4338 /* FIXME: We should not be casting between ints and
4339 pointers like this. */
4343 /* xgettext:c-format */
4344 (_("%pB: warning: illegal symbol index 0x%lx in line number entry %d"),
4345 abfd
, symndx
, counter
);
4346 cache_ptr
->line_number
= -1;
4350 sym
= (coff_symbol_type
*) (ent
->u
.syment
._n
._n_n
._n_zeroes
);
4352 /* PR 17512 file: 078-10659-0.004 */
4353 if (sym
< obj_symbols (abfd
)
4354 || sym
>= obj_symbols (abfd
) + bfd_get_symcount (abfd
))
4357 /* xgettext:c-format */
4358 (_("%pB: warning: illegal symbol in line number entry %d"),
4360 cache_ptr
->line_number
= -1;
4367 cache_ptr
->u
.sym
= (asymbol
*) sym
;
4368 if (sym
->lineno
!= NULL
)
4370 /* xgettext:c-format */
4371 (_("%pB: warning: duplicate line number information for `%s'"),
4372 abfd
, bfd_asymbol_name (&sym
->symbol
));
4374 sym
->lineno
= cache_ptr
;
4375 if (sym
->symbol
.value
< prev_offset
)
4377 prev_offset
= sym
->symbol
.value
;
4379 else if (!have_func
)
4380 /* Drop line information that has no associated function.
4381 PR 17521: file: 078-10659-0.004. */
4384 cache_ptr
->u
.offset
= dst
.l_addr
.l_paddr
- bfd_section_vma (asect
);
4388 asect
->lineno_count
= cache_ptr
- lineno_cache
;
4389 memset (cache_ptr
, 0, sizeof (*cache_ptr
));
4390 bfd_release (abfd
, native_lineno
);
4392 /* On some systems (eg AIX5.3) the lineno table may not be sorted. */
4395 /* Sort the table. */
4397 alent
*n_lineno_cache
;
4399 /* Create a table of functions. */
4400 if (_bfd_mul_overflow (nbr_func
, sizeof (alent
*), &amt
))
4402 bfd_set_error (bfd_error_file_too_big
);
4405 else if ((func_table
= (alent
**) bfd_alloc (abfd
, amt
)) != NULL
)
4407 alent
**p
= func_table
;
4410 for (i
= 0; i
< asect
->lineno_count
; i
++)
4411 if (lineno_cache
[i
].line_number
== 0)
4412 *p
++ = &lineno_cache
[i
];
4414 BFD_ASSERT ((unsigned int) (p
- func_table
) == nbr_func
);
4416 /* Sort by functions. */
4417 qsort (func_table
, nbr_func
, sizeof (alent
*), coff_sort_func_alent
);
4419 /* Create the new sorted table. */
4420 if (_bfd_mul_overflow (asect
->lineno_count
, sizeof (alent
), &amt
))
4422 bfd_set_error (bfd_error_file_too_big
);
4425 else if ((n_lineno_cache
= (alent
*) bfd_alloc (abfd
, amt
)) != NULL
)
4427 alent
*n_cache_ptr
= n_lineno_cache
;
4429 for (i
= 0; i
< nbr_func
; i
++)
4431 coff_symbol_type
*sym
;
4432 alent
*old_ptr
= func_table
[i
];
4434 /* Update the function entry. */
4435 sym
= (coff_symbol_type
*) old_ptr
->u
.sym
;
4436 /* PR binutils/17512: Point the lineno to where
4437 this entry will be after the memcpy below. */
4438 sym
->lineno
= lineno_cache
+ (n_cache_ptr
- n_lineno_cache
);
4439 /* Copy the function and line number entries. */
4441 *n_cache_ptr
++ = *old_ptr
++;
4442 while (old_ptr
->line_number
!= 0);
4445 memcpy (lineno_cache
, n_lineno_cache
,
4446 asect
->lineno_count
* sizeof (alent
));
4450 bfd_release (abfd
, func_table
);
4459 /* Slurp in the symbol table, converting it to generic form. Note
4460 that if coff_relocate_section is defined, the linker will read
4461 symbols via coff_link_add_symbols, rather than via this routine. */
4464 coff_slurp_symbol_table (bfd
* abfd
)
4466 combined_entry_type
*native_symbols
;
4467 coff_symbol_type
*cached_area
;
4468 unsigned int *table_ptr
;
4469 unsigned int number_of_symbols
= 0;
4470 bfd_boolean ret
= TRUE
;
4473 if (obj_symbols (abfd
))
4476 /* Read in the symbol table. */
4477 if ((native_symbols
= coff_get_normalized_symtab (abfd
)) == NULL
)
4480 /* Allocate enough room for all the symbols in cached form. */
4481 if (_bfd_mul_overflow (obj_raw_syment_count (abfd
),
4482 sizeof (*cached_area
), &amt
))
4484 bfd_set_error (bfd_error_file_too_big
);
4487 cached_area
= (coff_symbol_type
*) bfd_alloc (abfd
, amt
);
4488 if (cached_area
== NULL
)
4491 if (_bfd_mul_overflow (obj_raw_syment_count (abfd
),
4492 sizeof (*table_ptr
), &amt
))
4494 bfd_set_error (bfd_error_file_too_big
);
4497 table_ptr
= (unsigned int *) bfd_zalloc (abfd
, amt
);
4498 if (table_ptr
== NULL
)
4502 coff_symbol_type
*dst
= cached_area
;
4503 unsigned int last_native_index
= obj_raw_syment_count (abfd
);
4504 unsigned int this_index
= 0;
4506 while (this_index
< last_native_index
)
4508 combined_entry_type
*src
= native_symbols
+ this_index
;
4509 table_ptr
[this_index
] = number_of_symbols
;
4511 dst
->symbol
.the_bfd
= abfd
;
4512 BFD_ASSERT (src
->is_sym
);
4513 dst
->symbol
.name
= (char *) (src
->u
.syment
._n
._n_n
._n_offset
);
4514 /* We use the native name field to point to the cached field. */
4515 src
->u
.syment
._n
._n_n
._n_zeroes
= (bfd_hostptr_t
) dst
;
4516 dst
->symbol
.section
= coff_section_from_bfd_index (abfd
,
4517 src
->u
.syment
.n_scnum
);
4518 dst
->symbol
.flags
= 0;
4519 /* PR 17512: file: 079-7098-0.001:0.1. */
4520 dst
->symbol
.value
= 0;
4521 dst
->done_lineno
= FALSE
;
4523 switch (src
->u
.syment
.n_sclass
)
4529 case C_THUMBEXTFUNC
:
4533 #if ! defined _AIX52 && ! defined AIX_WEAK_SUPPORT
4538 case C_SYSTEM
: /* System Wide variable. */
4541 /* In PE, 0x68 (104) denotes a section symbol. */
4543 /* In PE, 0x69 (105) denotes a weak external symbol. */
4546 switch (coff_classify_symbol (abfd
, &src
->u
.syment
))
4548 case COFF_SYMBOL_GLOBAL
:
4549 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
4550 #if defined COFF_WITH_PE
4551 /* PE sets the symbol to a value relative to the
4552 start of the section. */
4553 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4555 dst
->symbol
.value
= (src
->u
.syment
.n_value
4556 - dst
->symbol
.section
->vma
);
4558 if (ISFCN ((src
->u
.syment
.n_type
)))
4559 /* A function ext does not go at the end of a
4561 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4564 case COFF_SYMBOL_COMMON
:
4565 dst
->symbol
.section
= bfd_com_section_ptr
;
4566 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4569 case COFF_SYMBOL_UNDEFINED
:
4570 dst
->symbol
.section
= bfd_und_section_ptr
;
4571 dst
->symbol
.value
= 0;
4574 case COFF_SYMBOL_PE_SECTION
:
4575 dst
->symbol
.flags
|= BSF_EXPORT
| BSF_SECTION_SYM
;
4576 dst
->symbol
.value
= 0;
4579 case COFF_SYMBOL_LOCAL
:
4580 dst
->symbol
.flags
= BSF_LOCAL
;
4581 #if defined COFF_WITH_PE
4582 /* PE sets the symbol to a value relative to the
4583 start of the section. */
4584 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4586 dst
->symbol
.value
= (src
->u
.syment
.n_value
4587 - dst
->symbol
.section
->vma
);
4589 if (ISFCN ((src
->u
.syment
.n_type
)))
4590 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4595 /* A symbol with a csect entry should not go at the end. */
4596 if (src
->u
.syment
.n_numaux
> 0)
4597 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
4601 if (src
->u
.syment
.n_sclass
== C_NT_WEAK
)
4602 dst
->symbol
.flags
|= BSF_WEAK
;
4604 if (src
->u
.syment
.n_sclass
== C_SECTION
4605 && src
->u
.syment
.n_scnum
> 0)
4606 dst
->symbol
.flags
= BSF_LOCAL
;
4608 if (src
->u
.syment
.n_sclass
== C_WEAKEXT
4610 || src
->u
.syment
.n_sclass
== C_AIX_WEAKEXT
4613 dst
->symbol
.flags
|= BSF_WEAK
;
4617 case C_STAT
: /* Static. */
4619 case C_THUMBSTAT
: /* Thumb static. */
4620 case C_THUMBLABEL
: /* Thumb label. */
4621 case C_THUMBSTATFUNC
:/* Thumb static function. */
4624 case C_DWARF
: /* A label in a dwarf section. */
4625 case C_INFO
: /* A label in a comment section. */
4627 case C_LABEL
: /* Label. */
4628 if (src
->u
.syment
.n_scnum
== N_DEBUG
)
4629 dst
->symbol
.flags
= BSF_DEBUGGING
;
4631 dst
->symbol
.flags
= BSF_LOCAL
;
4633 /* Base the value as an index from the base of the
4634 section, if there is one. */
4635 if (dst
->symbol
.section
)
4637 #if defined COFF_WITH_PE
4638 /* PE sets the symbol to a value relative to the
4639 start of the section. */
4640 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4642 dst
->symbol
.value
= (src
->u
.syment
.n_value
4643 - dst
->symbol
.section
->vma
);
4647 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4650 case C_MOS
: /* Member of structure. */
4651 case C_EOS
: /* End of structure. */
4652 case C_REGPARM
: /* Register parameter. */
4653 case C_REG
: /* register variable. */
4654 /* C_AUTOARG conflicts with TI COFF C_UEXT. */
4655 case C_TPDEF
: /* Type definition. */
4657 case C_AUTO
: /* Automatic variable. */
4658 case C_FIELD
: /* Bit field. */
4659 case C_ENTAG
: /* Enumeration tag. */
4660 case C_MOE
: /* Member of enumeration. */
4661 case C_MOU
: /* Member of union. */
4662 case C_UNTAG
: /* Union tag. */
4663 dst
->symbol
.flags
= BSF_DEBUGGING
;
4664 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4667 case C_FILE
: /* File name. */
4668 case C_STRTAG
: /* Structure tag. */
4685 dst
->symbol
.flags
= BSF_DEBUGGING
;
4686 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4690 case C_BINCL
: /* Beginning of include file. */
4691 case C_EINCL
: /* Ending of include file. */
4692 /* The value is actually a pointer into the line numbers
4693 of the file. We locate the line number entry, and
4694 set the section to the section which contains it, and
4695 the value to the index in that section. */
4699 dst
->symbol
.flags
= BSF_DEBUGGING
;
4700 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
4701 if (sec
->line_filepos
<= (file_ptr
) src
->u
.syment
.n_value
4702 && ((file_ptr
) (sec
->line_filepos
4703 + sec
->lineno_count
* bfd_coff_linesz (abfd
))
4704 > (file_ptr
) src
->u
.syment
.n_value
))
4707 dst
->symbol
.value
= 0;
4710 dst
->symbol
.section
= sec
;
4711 dst
->symbol
.value
= ((src
->u
.syment
.n_value
4712 - sec
->line_filepos
)
4713 / bfd_coff_linesz (abfd
));
4720 dst
->symbol
.flags
= BSF_DEBUGGING
;
4722 /* The value is actually a symbol index. Save a pointer
4723 to the symbol instead of the index. FIXME: This
4724 should use a union. */
4725 src
->u
.syment
.n_value
=
4726 (long) (intptr_t) (native_symbols
+ src
->u
.syment
.n_value
);
4727 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4732 case C_BLOCK
: /* ".bb" or ".eb". */
4733 case C_FCN
: /* ".bf" or ".ef" (or PE ".lf"). */
4734 case C_EFCN
: /* Physical end of function. */
4735 #if defined COFF_WITH_PE
4736 /* PE sets the symbol to a value relative to the start
4738 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4739 if (strcmp (dst
->symbol
.name
, ".bf") != 0)
4741 /* PE uses funny values for .ef and .lf; don't
4743 dst
->symbol
.flags
= BSF_DEBUGGING
;
4746 dst
->symbol
.flags
= BSF_DEBUGGING
| BSF_DEBUGGING_RELOC
;
4748 /* Base the value as an index from the base of the
4750 dst
->symbol
.flags
= BSF_LOCAL
;
4751 dst
->symbol
.value
= (src
->u
.syment
.n_value
4752 - dst
->symbol
.section
->vma
);
4756 case C_STATLAB
: /* Static load time label. */
4757 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4758 dst
->symbol
.flags
= BSF_GLOBAL
;
4762 /* PE DLLs sometimes have zeroed out symbols for some
4763 reason. Just ignore them without a warning. */
4764 if (src
->u
.syment
.n_type
== 0
4765 && src
->u
.syment
.n_value
== 0
4766 && src
->u
.syment
.n_scnum
== 0)
4769 /* XCOFF specific: deleted entry. */
4770 if (src
->u
.syment
.n_value
== C_NULL_VALUE
)
4774 case C_EXTDEF
: /* External definition. */
4775 case C_ULABEL
: /* Undefined label. */
4776 case C_USTATIC
: /* Undefined static. */
4777 #ifndef COFF_WITH_PE
4778 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4779 class to represent a section symbol. */
4780 case C_LINE
: /* line # reformatted as symbol table entry. */
4781 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4782 case C_ALIAS
: /* Duplicate tag. */
4784 /* New storage classes for TI COFF. */
4786 case C_UEXT
: /* Tentative external definition. */
4788 case C_EXTLAB
: /* External load time label. */
4791 /* xgettext:c-format */
4792 (_("%pB: unrecognized storage class %d for %s symbol `%s'"),
4793 abfd
, src
->u
.syment
.n_sclass
,
4794 dst
->symbol
.section
->name
, dst
->symbol
.name
);
4797 case C_HIDDEN
: /* Ext symbol in dmert public lib. */
4798 /* PR 20722: These symbols can also be generated by
4799 building DLLs with --gc-sections enabled. */
4800 dst
->symbol
.flags
= BSF_DEBUGGING
;
4801 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4806 dst
->symbol
.udata
.i
= 0;
4809 this_index
+= (src
->u
.syment
.n_numaux
) + 1;
4811 number_of_symbols
++;
4815 obj_symbols (abfd
) = cached_area
;
4816 obj_raw_syments (abfd
) = native_symbols
;
4818 abfd
->symcount
= number_of_symbols
;
4819 obj_convert (abfd
) = table_ptr
;
4820 /* Slurp the line tables for each section too. */
4827 if (! coff_slurp_line_table (abfd
, p
))
4836 /* Classify a COFF symbol. A couple of targets have globally visible
4837 symbols which are not class C_EXT, and this handles those. It also
4838 recognizes some special PE cases. */
4840 static enum coff_symbol_classification
4841 coff_classify_symbol (bfd
*abfd
,
4842 struct internal_syment
*syment
)
4844 /* FIXME: This partially duplicates the switch in
4845 coff_slurp_symbol_table. */
4846 switch (syment
->n_sclass
)
4852 case C_THUMBEXTFUNC
:
4860 if (syment
->n_scnum
== 0)
4862 if (syment
->n_value
== 0)
4863 return COFF_SYMBOL_UNDEFINED
;
4865 return COFF_SYMBOL_COMMON
;
4867 return COFF_SYMBOL_GLOBAL
;
4874 if (syment
->n_sclass
== C_STAT
)
4876 if (syment
->n_scnum
== 0)
4877 /* The Microsoft compiler sometimes generates these if a
4878 small static function is inlined every time it is used.
4879 The function is discarded, but the symbol table entry
4881 return COFF_SYMBOL_LOCAL
;
4883 #ifdef STRICT_PE_FORMAT
4884 /* This is correct for Microsoft generated objects, but it
4885 breaks gas generated objects. */
4886 if (syment
->n_value
== 0)
4890 char buf
[SYMNMLEN
+ 1];
4892 name
= _bfd_coff_internal_syment_name (abfd
, syment
, buf
)
4893 sec
= coff_section_from_bfd_index (abfd
, syment
->n_scnum
);
4894 if (sec
!= NULL
&& name
!= NULL
4895 && (strcmp (bfd_section_name (sec
), name
) == 0))
4896 return COFF_SYMBOL_PE_SECTION
;
4900 return COFF_SYMBOL_LOCAL
;
4903 if (syment
->n_sclass
== C_SECTION
)
4905 /* In some cases in a DLL generated by the Microsoft linker, the
4906 n_value field will contain garbage. FIXME: This should
4907 probably be handled by the swapping function instead. */
4908 syment
->n_value
= 0;
4909 if (syment
->n_scnum
== 0)
4910 return COFF_SYMBOL_UNDEFINED
;
4911 return COFF_SYMBOL_PE_SECTION
;
4913 #endif /* COFF_WITH_PE */
4915 /* If it is not a global symbol, we presume it is a local symbol. */
4916 if (syment
->n_scnum
== 0)
4918 char buf
[SYMNMLEN
+ 1];
4921 /* xgettext:c-format */
4922 (_("warning: %pB: local symbol `%s' has no section"),
4923 abfd
, _bfd_coff_internal_syment_name (abfd
, syment
, buf
));
4926 return COFF_SYMBOL_LOCAL
;
4933 Coff relocations are easily transformed into the internal BFD form
4936 Reading a coff relocation table is done in the following stages:
4938 o Read the entire coff relocation table into memory.
4940 o Process each relocation in turn; first swap it from the
4941 external to the internal form.
4943 o Turn the symbol referenced in the relocation's symbol index
4944 into a pointer into the canonical symbol table.
4945 This table is the same as the one returned by a call to
4946 @code{bfd_canonicalize_symtab}. The back end will call that
4947 routine and save the result if a canonicalization hasn't been done.
4949 o The reloc index is turned into a pointer to a howto
4950 structure, in a back end specific way. For instance, the 386
4951 uses the @code{r_type} to directly produce an index
4952 into a howto table vector.
4956 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
4958 coff_symbol_type *coffsym = NULL; \
4960 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
4961 coffsym = (obj_symbols (abfd) \
4962 + (cache_ptr->sym_ptr_ptr - symbols)); \
4964 coffsym = coff_symbol_from (ptr); \
4965 if (coffsym != NULL \
4966 && coffsym->native->is_sym \
4967 && coffsym->native->u.syment.n_scnum == 0) \
4968 cache_ptr->addend = 0; \
4969 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
4970 && ptr->section != NULL) \
4971 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
4973 cache_ptr->addend = 0; \
4978 coff_slurp_reloc_table (bfd
* abfd
, sec_ptr asect
, asymbol
** symbols
)
4980 RELOC
*native_relocs
;
4981 arelent
*reloc_cache
;
4986 if (asect
->relocation
)
4988 if (asect
->reloc_count
== 0)
4990 if (asect
->flags
& SEC_CONSTRUCTOR
)
4992 if (!coff_slurp_symbol_table (abfd
))
4995 native_relocs
= (RELOC
*) buy_and_read (abfd
, asect
->rel_filepos
,
4997 bfd_coff_relsz (abfd
));
4998 if (_bfd_mul_overflow (asect
->reloc_count
, sizeof (arelent
), &amt
))
5000 bfd_set_error (bfd_error_file_too_big
);
5003 reloc_cache
= (arelent
*) bfd_alloc (abfd
, amt
);
5004 if (reloc_cache
== NULL
|| native_relocs
== NULL
)
5007 for (idx
= 0; idx
< asect
->reloc_count
; idx
++)
5009 struct internal_reloc dst
;
5010 struct external_reloc
*src
;
5011 #ifndef RELOC_PROCESSING
5015 cache_ptr
= reloc_cache
+ idx
;
5016 src
= native_relocs
+ idx
;
5019 coff_swap_reloc_in (abfd
, src
, &dst
);
5021 #ifdef RELOC_PROCESSING
5022 RELOC_PROCESSING (cache_ptr
, &dst
, symbols
, abfd
, asect
);
5024 cache_ptr
->address
= dst
.r_vaddr
;
5026 if (dst
.r_symndx
!= -1 && symbols
!= NULL
)
5028 if (dst
.r_symndx
< 0 || dst
.r_symndx
>= obj_conv_table_size (abfd
))
5031 /* xgettext:c-format */
5032 (_("%pB: warning: illegal symbol index %ld in relocs"),
5033 abfd
, dst
.r_symndx
);
5034 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
5039 cache_ptr
->sym_ptr_ptr
= (symbols
5040 + obj_convert (abfd
)[dst
.r_symndx
]);
5041 ptr
= *(cache_ptr
->sym_ptr_ptr
);
5046 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
5050 /* The symbols definitions that we have read in have been
5051 relocated as if their sections started at 0. But the offsets
5052 refering to the symbols in the raw data have not been
5053 modified, so we have to have a negative addend to compensate.
5055 Note that symbols which used to be common must be left alone. */
5057 /* Calculate any reloc addend by looking at the symbol. */
5058 CALC_ADDEND (abfd
, ptr
, dst
, cache_ptr
);
5061 cache_ptr
->address
-= asect
->vma
;
5062 /* !! cache_ptr->section = NULL;*/
5064 /* Fill in the cache_ptr->howto field from dst.r_type. */
5065 RTYPE2HOWTO (cache_ptr
, &dst
);
5066 #endif /* RELOC_PROCESSING */
5068 if (cache_ptr
->howto
== NULL
)
5071 /* xgettext:c-format */
5072 (_("%pB: illegal relocation type %d at address %#" PRIx64
),
5073 abfd
, dst
.r_type
, (uint64_t) dst
.r_vaddr
);
5074 bfd_set_error (bfd_error_bad_value
);
5079 asect
->relocation
= reloc_cache
;
5083 #ifndef coff_rtype_to_howto
5086 /* Get the howto structure for a reloc. This is only used if the file
5087 including this one defines coff_relocate_section to be
5088 _bfd_coff_generic_relocate_section, so it is OK if it does not
5089 always work. It is the responsibility of the including file to
5090 make sure it is reasonable if it is needed. */
5092 static reloc_howto_type
*
5093 coff_rtype_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
,
5094 asection
*sec ATTRIBUTE_UNUSED
,
5095 struct internal_reloc
*rel ATTRIBUTE_UNUSED
,
5096 struct coff_link_hash_entry
*h ATTRIBUTE_UNUSED
,
5097 struct internal_syment
*sym ATTRIBUTE_UNUSED
,
5098 bfd_vma
*addendp ATTRIBUTE_UNUSED
)
5102 genrel
.howto
= NULL
;
5103 RTYPE2HOWTO (&genrel
, rel
);
5104 return genrel
.howto
;
5107 #else /* ! defined (RTYPE2HOWTO) */
5109 #define coff_rtype_to_howto NULL
5111 #endif /* ! defined (RTYPE2HOWTO) */
5112 #endif /* ! defined (coff_rtype_to_howto) */
5114 /* This is stupid. This function should be a boolean predicate. */
5117 coff_canonicalize_reloc (bfd
* abfd
,
5122 arelent
*tblptr
= section
->relocation
;
5123 unsigned int count
= 0;
5125 if (section
->flags
& SEC_CONSTRUCTOR
)
5127 /* This section has relocs made up by us, they are not in the
5128 file, so take them out of their chain and place them into
5129 the data area provided. */
5130 arelent_chain
*chain
= section
->constructor_chain
;
5132 for (count
= 0; count
< section
->reloc_count
; count
++)
5134 *relptr
++ = &chain
->relent
;
5135 chain
= chain
->next
;
5140 if (! coff_slurp_reloc_table (abfd
, section
, symbols
))
5143 tblptr
= section
->relocation
;
5145 for (; count
++ < section
->reloc_count
;)
5146 *relptr
++ = tblptr
++;
5149 return section
->reloc_count
;
5152 #ifndef coff_set_reloc
5153 #define coff_set_reloc _bfd_generic_set_reloc
5156 #ifndef coff_reloc16_estimate
5157 #define coff_reloc16_estimate dummy_reloc16_estimate
5160 dummy_reloc16_estimate (bfd
*abfd ATTRIBUTE_UNUSED
,
5161 asection
*input_section ATTRIBUTE_UNUSED
,
5162 arelent
*reloc ATTRIBUTE_UNUSED
,
5163 unsigned int shrink ATTRIBUTE_UNUSED
,
5164 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
)
5172 #ifndef coff_reloc16_extra_cases
5174 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
5176 /* This works even if abort is not declared in any header file. */
5179 dummy_reloc16_extra_cases (bfd
*abfd ATTRIBUTE_UNUSED
,
5180 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
,
5181 struct bfd_link_order
*link_order ATTRIBUTE_UNUSED
,
5182 arelent
*reloc ATTRIBUTE_UNUSED
,
5183 bfd_byte
*data ATTRIBUTE_UNUSED
,
5184 unsigned int *src_ptr ATTRIBUTE_UNUSED
,
5185 unsigned int *dst_ptr ATTRIBUTE_UNUSED
)
5191 /* If coff_relocate_section is defined, we can use the optimized COFF
5192 backend linker. Otherwise we must continue to use the old linker. */
5194 #ifdef coff_relocate_section
5196 #ifndef coff_bfd_link_hash_table_create
5197 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
5199 #ifndef coff_bfd_link_add_symbols
5200 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
5202 #ifndef coff_bfd_final_link
5203 #define coff_bfd_final_link _bfd_coff_final_link
5206 #else /* ! defined (coff_relocate_section) */
5208 #define coff_relocate_section NULL
5209 #ifndef coff_bfd_link_hash_table_create
5210 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
5212 #ifndef coff_bfd_link_add_symbols
5213 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
5215 #define coff_bfd_final_link _bfd_generic_final_link
5217 #endif /* ! defined (coff_relocate_section) */
5219 #define coff_bfd_link_just_syms _bfd_generic_link_just_syms
5220 #define coff_bfd_copy_link_hash_symbol_type \
5221 _bfd_generic_copy_link_hash_symbol_type
5222 #define coff_bfd_link_split_section _bfd_generic_link_split_section
5224 #define coff_bfd_link_check_relocs _bfd_generic_link_check_relocs
5226 #ifndef coff_start_final_link
5227 #define coff_start_final_link NULL
5230 #ifndef coff_adjust_symndx
5231 #define coff_adjust_symndx NULL
5234 #ifndef coff_link_add_one_symbol
5235 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
5238 #ifndef coff_link_output_has_begun
5241 coff_link_output_has_begun (bfd
* abfd
,
5242 struct coff_final_link_info
* info ATTRIBUTE_UNUSED
)
5244 return abfd
->output_has_begun
;
5248 #ifndef coff_final_link_postscript
5251 coff_final_link_postscript (bfd
* abfd ATTRIBUTE_UNUSED
,
5252 struct coff_final_link_info
* pfinfo ATTRIBUTE_UNUSED
)
5258 #ifndef coff_SWAP_aux_in
5259 #define coff_SWAP_aux_in coff_swap_aux_in
5261 #ifndef coff_SWAP_sym_in
5262 #define coff_SWAP_sym_in coff_swap_sym_in
5264 #ifndef coff_SWAP_lineno_in
5265 #define coff_SWAP_lineno_in coff_swap_lineno_in
5267 #ifndef coff_SWAP_aux_out
5268 #define coff_SWAP_aux_out coff_swap_aux_out
5270 #ifndef coff_SWAP_sym_out
5271 #define coff_SWAP_sym_out coff_swap_sym_out
5273 #ifndef coff_SWAP_lineno_out
5274 #define coff_SWAP_lineno_out coff_swap_lineno_out
5276 #ifndef coff_SWAP_reloc_out
5277 #define coff_SWAP_reloc_out coff_swap_reloc_out
5279 #ifndef coff_SWAP_filehdr_out
5280 #define coff_SWAP_filehdr_out coff_swap_filehdr_out
5282 #ifndef coff_SWAP_aouthdr_out
5283 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
5285 #ifndef coff_SWAP_scnhdr_out
5286 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
5288 #ifndef coff_SWAP_reloc_in
5289 #define coff_SWAP_reloc_in coff_swap_reloc_in
5291 #ifndef coff_SWAP_filehdr_in
5292 #define coff_SWAP_filehdr_in coff_swap_filehdr_in
5294 #ifndef coff_SWAP_aouthdr_in
5295 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
5297 #ifndef coff_SWAP_scnhdr_in
5298 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
5301 static bfd_coff_backend_data bfd_coff_std_swap_table ATTRIBUTE_UNUSED
=
5303 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5304 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5305 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5306 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5307 coff_SWAP_scnhdr_out
,
5308 FILHSZ
, AOUTSZ
, SCNHSZ
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
5309 #ifdef COFF_LONG_FILENAMES
5314 COFF_DEFAULT_LONG_SECTION_NAMES
,
5315 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5316 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5321 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5327 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5328 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
5329 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5330 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5331 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5332 coff_classify_symbol
, coff_compute_section_file_positions
,
5333 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5334 coff_adjust_symndx
, coff_link_add_one_symbol
,
5335 coff_link_output_has_begun
, coff_final_link_postscript
,
5340 /* COFF0 differs in file/section header size and relocation entry size. */
5342 static bfd_coff_backend_data ticoff0_swap_table
=
5344 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5345 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5346 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5347 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5348 coff_SWAP_scnhdr_out
,
5349 FILHSZ_V0
, AOUTSZ
, SCNHSZ_V01
, SYMESZ
, AUXESZ
, RELSZ_V0
, LINESZ
, FILNMLEN
,
5350 #ifdef COFF_LONG_FILENAMES
5355 COFF_DEFAULT_LONG_SECTION_NAMES
,
5356 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5357 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5362 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5368 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5369 coff_SWAP_reloc_in
, ticoff0_bad_format_hook
, coff_set_arch_mach_hook
,
5370 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5371 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5372 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5373 coff_classify_symbol
, coff_compute_section_file_positions
,
5374 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5375 coff_adjust_symndx
, coff_link_add_one_symbol
,
5376 coff_link_output_has_begun
, coff_final_link_postscript
,
5382 /* COFF1 differs in section header size. */
5384 static bfd_coff_backend_data ticoff1_swap_table
=
5386 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5387 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5388 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5389 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5390 coff_SWAP_scnhdr_out
,
5391 FILHSZ
, AOUTSZ
, SCNHSZ_V01
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
5392 #ifdef COFF_LONG_FILENAMES
5397 COFF_DEFAULT_LONG_SECTION_NAMES
,
5398 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5399 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5404 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5410 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5411 coff_SWAP_reloc_in
, ticoff1_bad_format_hook
, coff_set_arch_mach_hook
,
5412 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5413 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5414 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5415 coff_classify_symbol
, coff_compute_section_file_positions
,
5416 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5417 coff_adjust_symndx
, coff_link_add_one_symbol
,
5418 coff_link_output_has_begun
, coff_final_link_postscript
,
5419 bfd_pe_print_pdata
/* huh */
5423 #ifdef COFF_WITH_PE_BIGOBJ
5424 /* The UID for bigobj files. */
5426 static const char header_bigobj_classid
[16] =
5428 0xC7, 0xA1, 0xBA, 0xD1,
5432 0xFA, 0xF6, 0x6A, 0xA4, 0xDC, 0xB8
5435 /* Swap routines. */
5438 coff_bigobj_swap_filehdr_in (bfd
* abfd
, void * src
, void * dst
)
5440 struct external_ANON_OBJECT_HEADER_BIGOBJ
*filehdr_src
=
5441 (struct external_ANON_OBJECT_HEADER_BIGOBJ
*) src
;
5442 struct internal_filehdr
*filehdr_dst
= (struct internal_filehdr
*) dst
;
5444 filehdr_dst
->f_magic
= H_GET_16 (abfd
, filehdr_src
->Machine
);
5445 filehdr_dst
->f_nscns
= H_GET_32 (abfd
, filehdr_src
->NumberOfSections
);
5446 filehdr_dst
->f_timdat
= H_GET_32 (abfd
, filehdr_src
->TimeDateStamp
);
5447 filehdr_dst
->f_symptr
=
5448 GET_FILEHDR_SYMPTR (abfd
, filehdr_src
->PointerToSymbolTable
);
5449 filehdr_dst
->f_nsyms
= H_GET_32 (abfd
, filehdr_src
->NumberOfSymbols
);
5450 filehdr_dst
->f_opthdr
= 0;
5451 filehdr_dst
->f_flags
= 0;
5453 /* Check other magic numbers. */
5454 if (H_GET_16 (abfd
, filehdr_src
->Sig1
) != IMAGE_FILE_MACHINE_UNKNOWN
5455 || H_GET_16 (abfd
, filehdr_src
->Sig2
) != 0xffff
5456 || H_GET_16 (abfd
, filehdr_src
->Version
) != 2
5457 || memcmp (filehdr_src
->ClassID
, header_bigobj_classid
, 16) != 0)
5458 filehdr_dst
->f_opthdr
= 0xffff;
5460 /* Note that CLR metadata are ignored. */
5464 coff_bigobj_swap_filehdr_out (bfd
*abfd
, void * in
, void * out
)
5466 struct internal_filehdr
*filehdr_in
= (struct internal_filehdr
*) in
;
5467 struct external_ANON_OBJECT_HEADER_BIGOBJ
*filehdr_out
=
5468 (struct external_ANON_OBJECT_HEADER_BIGOBJ
*) out
;
5470 memset (filehdr_out
, 0, sizeof (*filehdr_out
));
5472 H_PUT_16 (abfd
, IMAGE_FILE_MACHINE_UNKNOWN
, filehdr_out
->Sig1
);
5473 H_PUT_16 (abfd
, 0xffff, filehdr_out
->Sig2
);
5474 H_PUT_16 (abfd
, 2, filehdr_out
->Version
);
5475 memcpy (filehdr_out
->ClassID
, header_bigobj_classid
, 16);
5476 H_PUT_16 (abfd
, filehdr_in
->f_magic
, filehdr_out
->Machine
);
5477 H_PUT_32 (abfd
, filehdr_in
->f_nscns
, filehdr_out
->NumberOfSections
);
5478 H_PUT_32 (abfd
, filehdr_in
->f_timdat
, filehdr_out
->TimeDateStamp
);
5479 PUT_FILEHDR_SYMPTR (abfd
, filehdr_in
->f_symptr
,
5480 filehdr_out
->PointerToSymbolTable
);
5481 H_PUT_32 (abfd
, filehdr_in
->f_nsyms
, filehdr_out
->NumberOfSymbols
);
5483 return bfd_coff_filhsz (abfd
);
5487 coff_bigobj_swap_sym_in (bfd
* abfd
, void * ext1
, void * in1
)
5489 SYMENT_BIGOBJ
*ext
= (SYMENT_BIGOBJ
*) ext1
;
5490 struct internal_syment
*in
= (struct internal_syment
*) in1
;
5492 if (ext
->e
.e_name
[0] == 0)
5494 in
->_n
._n_n
._n_zeroes
= 0;
5495 in
->_n
._n_n
._n_offset
= H_GET_32 (abfd
, ext
->e
.e
.e_offset
);
5499 #if SYMNMLEN != E_SYMNMLEN
5500 #error we need to cope with truncating or extending SYMNMLEN
5502 memcpy (in
->_n
._n_name
, ext
->e
.e_name
, SYMNMLEN
);
5506 in
->n_value
= H_GET_32 (abfd
, ext
->e_value
);
5507 BFD_ASSERT (sizeof (in
->n_scnum
) >= 4);
5508 in
->n_scnum
= H_GET_32 (abfd
, ext
->e_scnum
);
5509 in
->n_type
= H_GET_16 (abfd
, ext
->e_type
);
5510 in
->n_sclass
= H_GET_8 (abfd
, ext
->e_sclass
);
5511 in
->n_numaux
= H_GET_8 (abfd
, ext
->e_numaux
);
5515 coff_bigobj_swap_sym_out (bfd
* abfd
, void * inp
, void * extp
)
5517 struct internal_syment
*in
= (struct internal_syment
*) inp
;
5518 SYMENT_BIGOBJ
*ext
= (SYMENT_BIGOBJ
*) extp
;
5520 if (in
->_n
._n_name
[0] == 0)
5522 H_PUT_32 (abfd
, 0, ext
->e
.e
.e_zeroes
);
5523 H_PUT_32 (abfd
, in
->_n
._n_n
._n_offset
, ext
->e
.e
.e_offset
);
5527 #if SYMNMLEN != E_SYMNMLEN
5528 #error we need to cope with truncating or extending SYMNMLEN
5530 memcpy (ext
->e
.e_name
, in
->_n
._n_name
, SYMNMLEN
);
5534 H_PUT_32 (abfd
, in
->n_value
, ext
->e_value
);
5535 H_PUT_32 (abfd
, in
->n_scnum
, ext
->e_scnum
);
5537 H_PUT_16 (abfd
, in
->n_type
, ext
->e_type
);
5538 H_PUT_8 (abfd
, in
->n_sclass
, ext
->e_sclass
);
5539 H_PUT_8 (abfd
, in
->n_numaux
, ext
->e_numaux
);
5541 return SYMESZ_BIGOBJ
;
5545 coff_bigobj_swap_aux_in (bfd
*abfd
,
5553 AUXENT_BIGOBJ
*ext
= (AUXENT_BIGOBJ
*) ext1
;
5554 union internal_auxent
*in
= (union internal_auxent
*) in1
;
5556 /* Make sure that all fields in the aux structure are
5558 memset (in
, 0, sizeof * in
);
5565 memcpy (in
->x_file
.x_fname
, ext
->File
.Name
,
5566 numaux
* sizeof (AUXENT_BIGOBJ
));
5569 memcpy (in
->x_file
.x_fname
, ext
->File
.Name
, sizeof (ext
->File
.Name
));
5577 in
->x_scn
.x_scnlen
= H_GET_32 (abfd
, ext
->Section
.Length
);
5578 in
->x_scn
.x_nreloc
=
5579 H_GET_16 (abfd
, ext
->Section
.NumberOfRelocations
);
5580 in
->x_scn
.x_nlinno
=
5581 H_GET_16 (abfd
, ext
->Section
.NumberOfLinenumbers
);
5582 in
->x_scn
.x_checksum
= H_GET_32 (abfd
, ext
->Section
.Checksum
);
5583 in
->x_scn
.x_associated
= H_GET_16 (abfd
, ext
->Section
.Number
)
5584 | (H_GET_16 (abfd
, ext
->Section
.HighNumber
) << 16);
5585 in
->x_scn
.x_comdat
= H_GET_8 (abfd
, ext
->Section
.Selection
);
5591 in
->x_sym
.x_tagndx
.l
= H_GET_32 (abfd
, ext
->Sym
.WeakDefaultSymIndex
);
5592 /* Characteristics is ignored. */
5598 coff_bigobj_swap_aux_out (bfd
* abfd
,
5602 int indx ATTRIBUTE_UNUSED
,
5603 int numaux ATTRIBUTE_UNUSED
,
5606 union internal_auxent
* in
= (union internal_auxent
*) inp
;
5607 AUXENT_BIGOBJ
*ext
= (AUXENT_BIGOBJ
*) extp
;
5609 memset (ext
, 0, AUXESZ
);
5614 memcpy (ext
->File
.Name
, in
->x_file
.x_fname
, sizeof (ext
->File
.Name
));
5623 H_PUT_32 (abfd
, in
->x_scn
.x_scnlen
, ext
->Section
.Length
);
5624 H_PUT_16 (abfd
, in
->x_scn
.x_nreloc
,
5625 ext
->Section
.NumberOfRelocations
);
5626 H_PUT_16 (abfd
, in
->x_scn
.x_nlinno
,
5627 ext
->Section
.NumberOfLinenumbers
);
5628 H_PUT_32 (abfd
, in
->x_scn
.x_checksum
, ext
->Section
.Checksum
);
5629 H_PUT_16 (abfd
, in
->x_scn
.x_associated
& 0xffff,
5630 ext
->Section
.Number
);
5631 H_PUT_16 (abfd
, (in
->x_scn
.x_associated
>> 16),
5632 ext
->Section
.HighNumber
);
5633 H_PUT_8 (abfd
, in
->x_scn
.x_comdat
, ext
->Section
.Selection
);
5639 H_PUT_32 (abfd
, in
->x_sym
.x_tagndx
.l
, ext
->Sym
.WeakDefaultSymIndex
);
5640 H_PUT_32 (abfd
, 1, ext
->Sym
.WeakSearchType
);
5645 static bfd_coff_backend_data bigobj_swap_table
=
5647 coff_bigobj_swap_aux_in
, coff_bigobj_swap_sym_in
, coff_SWAP_lineno_in
,
5648 coff_bigobj_swap_aux_out
, coff_bigobj_swap_sym_out
,
5649 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5650 coff_bigobj_swap_filehdr_out
, coff_SWAP_aouthdr_out
,
5651 coff_SWAP_scnhdr_out
,
5652 FILHSZ_BIGOBJ
, AOUTSZ
, SCNHSZ
, SYMESZ_BIGOBJ
, AUXESZ_BIGOBJ
,
5653 RELSZ
, LINESZ
, FILNMLEN_BIGOBJ
,
5655 COFF_DEFAULT_LONG_SECTION_NAMES
,
5656 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5660 coff_bigobj_swap_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5661 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
5662 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5663 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5664 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5665 coff_classify_symbol
, coff_compute_section_file_positions
,
5666 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5667 coff_adjust_symndx
, coff_link_add_one_symbol
,
5668 coff_link_output_has_begun
, coff_final_link_postscript
,
5669 bfd_pe_print_pdata
/* huh */
5672 #endif /* COFF_WITH_PE_BIGOBJ */
5674 #ifndef coff_close_and_cleanup
5675 #define coff_close_and_cleanup _bfd_coff_close_and_cleanup
5678 #ifndef coff_bfd_free_cached_info
5679 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
5682 #ifndef coff_get_section_contents
5683 #define coff_get_section_contents _bfd_generic_get_section_contents
5686 #ifndef coff_bfd_copy_private_symbol_data
5687 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
5690 #ifndef coff_bfd_copy_private_header_data
5691 #define coff_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
5694 #ifndef coff_bfd_copy_private_section_data
5695 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
5698 #ifndef coff_bfd_copy_private_bfd_data
5699 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
5702 #ifndef coff_bfd_merge_private_bfd_data
5703 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
5706 #ifndef coff_bfd_set_private_flags
5707 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
5710 #ifndef coff_bfd_print_private_bfd_data
5711 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
5714 #ifndef coff_bfd_is_local_label_name
5715 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
5718 #ifndef coff_bfd_is_target_special_symbol
5719 #define coff_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false
5722 #ifndef coff_read_minisymbols
5723 #define coff_read_minisymbols _bfd_generic_read_minisymbols
5726 #ifndef coff_minisymbol_to_symbol
5727 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
5730 /* The reloc lookup routine must be supplied by each individual COFF
5732 #ifndef coff_bfd_reloc_type_lookup
5733 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5735 #ifndef coff_bfd_reloc_name_lookup
5736 #define coff_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5739 #ifndef coff_bfd_get_relocated_section_contents
5740 #define coff_bfd_get_relocated_section_contents \
5741 bfd_generic_get_relocated_section_contents
5744 #ifndef coff_bfd_relax_section
5745 #define coff_bfd_relax_section bfd_generic_relax_section
5748 #ifndef coff_bfd_gc_sections
5749 #define coff_bfd_gc_sections bfd_coff_gc_sections
5752 #ifndef coff_bfd_lookup_section_flags
5753 #define coff_bfd_lookup_section_flags bfd_generic_lookup_section_flags
5756 #ifndef coff_bfd_merge_sections
5757 #define coff_bfd_merge_sections bfd_generic_merge_sections
5760 #ifndef coff_bfd_is_group_section
5761 #define coff_bfd_is_group_section bfd_generic_is_group_section
5764 #ifndef coff_bfd_group_name
5765 #define coff_bfd_group_name bfd_coff_group_name
5768 #ifndef coff_bfd_discard_group
5769 #define coff_bfd_discard_group bfd_generic_discard_group
5772 #ifndef coff_section_already_linked
5773 #define coff_section_already_linked \
5774 _bfd_coff_section_already_linked
5777 #ifndef coff_bfd_define_common_symbol
5778 #define coff_bfd_define_common_symbol bfd_generic_define_common_symbol
5781 #ifndef coff_bfd_link_hide_symbol
5782 #define coff_bfd_link_hide_symbol _bfd_generic_link_hide_symbol
5785 #ifndef coff_bfd_define_start_stop
5786 #define coff_bfd_define_start_stop bfd_generic_define_start_stop
5789 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5790 const bfd_target VAR = \
5793 bfd_target_coff_flavour, \
5794 BFD_ENDIAN_BIG, /* Data byte order is big. */ \
5795 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5796 /* object flags */ \
5797 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5798 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5799 /* section flags */ \
5800 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5801 UNDER, /* Leading symbol underscore. */ \
5802 '/', /* AR_pad_char. */ \
5803 15, /* AR_max_namelen. */ \
5804 0, /* match priority. */ \
5806 /* Data conversion functions. */ \
5807 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5808 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5809 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5811 /* Header conversion functions. */ \
5812 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5813 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5814 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5816 { /* bfd_check_format. */ \
5817 _bfd_dummy_target, \
5819 bfd_generic_archive_p, \
5822 { /* bfd_set_format. */ \
5823 _bfd_bool_bfd_false_error, \
5825 _bfd_generic_mkarchive, \
5826 _bfd_bool_bfd_false_error \
5828 { /* bfd_write_contents. */ \
5829 _bfd_bool_bfd_false_error, \
5830 coff_write_object_contents, \
5831 _bfd_write_archive_contents, \
5832 _bfd_bool_bfd_false_error \
5835 BFD_JUMP_TABLE_GENERIC (coff), \
5836 BFD_JUMP_TABLE_COPY (coff), \
5837 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5838 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5839 BFD_JUMP_TABLE_SYMBOLS (coff), \
5840 BFD_JUMP_TABLE_RELOCS (coff), \
5841 BFD_JUMP_TABLE_WRITE (coff), \
5842 BFD_JUMP_TABLE_LINK (coff), \
5843 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5850 #define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5851 const bfd_target VAR = \
5854 bfd_target_coff_flavour, \
5855 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5856 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5857 /* object flags */ \
5858 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5859 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5860 /* section flags */ \
5861 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5862 UNDER, /* Leading symbol underscore. */ \
5863 '/', /* AR_pad_char. */ \
5864 15, /* AR_max_namelen. */ \
5865 0, /* match priority. */ \
5867 /* Data conversion functions. */ \
5868 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5869 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5870 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5872 /* Header conversion functions. */ \
5873 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5874 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5875 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5877 { /* bfd_check_format. */ \
5878 _bfd_dummy_target, \
5880 bfd_generic_archive_p, \
5883 { /* bfd_set_format. */ \
5884 _bfd_bool_bfd_false_error, \
5886 _bfd_generic_mkarchive, \
5887 _bfd_bool_bfd_false_error \
5889 { /* bfd_write_contents. */ \
5890 _bfd_bool_bfd_false_error, \
5891 coff_write_object_contents, \
5892 _bfd_write_archive_contents, \
5893 _bfd_bool_bfd_false_error \
5896 BFD_JUMP_TABLE_GENERIC (coff), \
5897 BFD_JUMP_TABLE_COPY (coff), \
5898 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5899 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5900 BFD_JUMP_TABLE_SYMBOLS (coff), \
5901 BFD_JUMP_TABLE_RELOCS (coff), \
5902 BFD_JUMP_TABLE_WRITE (coff), \
5903 BFD_JUMP_TABLE_LINK (coff), \
5904 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5911 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5912 const bfd_target VAR = \
5915 bfd_target_coff_flavour, \
5916 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5917 BFD_ENDIAN_LITTLE, /* Header byte order is little. */ \
5918 /* object flags */ \
5919 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5920 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5921 /* section flags */ \
5922 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5923 UNDER, /* Leading symbol underscore. */ \
5924 '/', /* AR_pad_char. */ \
5925 15, /* AR_max_namelen. */ \
5926 0, /* match priority. */ \
5928 /* Data conversion functions. */ \
5929 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5930 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5931 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5932 /* Header conversion functions. */ \
5933 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5934 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5935 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5937 { /* bfd_check_format. */ \
5938 _bfd_dummy_target, \
5940 bfd_generic_archive_p, \
5943 { /* bfd_set_format. */ \
5944 _bfd_bool_bfd_false_error, \
5946 _bfd_generic_mkarchive, \
5947 _bfd_bool_bfd_false_error \
5949 { /* bfd_write_contents. */ \
5950 _bfd_bool_bfd_false_error, \
5951 coff_write_object_contents, \
5952 _bfd_write_archive_contents, \
5953 _bfd_bool_bfd_false_error \
5956 BFD_JUMP_TABLE_GENERIC (coff), \
5957 BFD_JUMP_TABLE_COPY (coff), \
5958 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5959 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5960 BFD_JUMP_TABLE_SYMBOLS (coff), \
5961 BFD_JUMP_TABLE_RELOCS (coff), \
5962 BFD_JUMP_TABLE_WRITE (coff), \
5963 BFD_JUMP_TABLE_LINK (coff), \
5964 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \