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 ATTRIBUTE_UNUSED
,
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 defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
854 /* As a GNU extension, if the name begins with .gnu.linkonce, we
855 only link a single copy of the section. This is used to support
856 g++. g++ will emit each template expansion in its own section.
857 The symbols will be defined as weak, so that multiple definitions
858 are permitted. The GNU linker extension is to actually discard
859 all but one of the sections. */
860 if (CONST_STRNEQ (name
, ".gnu.linkonce"))
861 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
864 if (flags_ptr
== NULL
)
867 * flags_ptr
= sec_flags
;
871 #else /* COFF_WITH_PE */
874 handle_COMDAT (bfd
* abfd
,
880 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
881 bfd_byte
*esymstart
, *esym
, *esymend
;
883 char *target_name
= NULL
;
885 sec_flags
|= SEC_LINK_ONCE
;
887 /* Unfortunately, the PE format stores essential information in
888 the symbol table, of all places. We need to extract that
889 information now, so that objdump and the linker will know how
890 to handle the section without worrying about the symbols. We
891 can't call slurp_symtab, because the linker doesn't want the
894 /* COMDAT sections are special. The first symbol is the section
895 symbol, which tells what kind of COMDAT section it is. The
896 second symbol is the "comdat symbol" - the one with the
897 unique name. GNU uses the section symbol for the unique
898 name; MS uses ".text" for every comdat section. Sigh. - DJ */
900 /* This is not mirrored in sec_to_styp_flags(), but there
901 doesn't seem to be a need to, either, and it would at best be
904 if (! _bfd_coff_get_external_symbols (abfd
))
907 esymstart
= esym
= (bfd_byte
*) obj_coff_external_syms (abfd
);
908 esymend
= esym
+ obj_raw_syment_count (abfd
) * bfd_coff_symesz (abfd
);
910 while (esym
< esymend
)
912 struct internal_syment isym
;
913 char buf
[SYMNMLEN
+ 1];
916 bfd_coff_swap_sym_in (abfd
, esym
, & isym
);
918 BFD_ASSERT (sizeof (internal_s
->s_name
) <= SYMNMLEN
);
920 if (isym
.n_scnum
== section
->target_index
)
922 /* According to the MSVC documentation, the first
923 TWO entries with the section # are both of
924 interest to us. The first one is the "section
925 symbol" (section name). The second is the comdat
926 symbol name. Here, we've found the first
927 qualifying entry; we distinguish it from the
928 second with a state flag.
930 In the case of gas-generated (at least until that
931 is fixed) .o files, it isn't necessarily the
932 second one. It may be some other later symbol.
934 Since gas also doesn't follow MS conventions and
935 emits the section similar to .text$<name>, where
936 <something> is the name we're looking for, we
937 distinguish the two as follows:
939 If the section name is simply a section name (no
940 $) we presume it's MS-generated, and look at
941 precisely the second symbol for the comdat name.
942 If the section name has a $, we assume it's
943 gas-generated, and look for <something> (whatever
944 follows the $) as the comdat symbol. */
946 /* All 3 branches use this. */
947 symname
= _bfd_coff_internal_syment_name (abfd
, &isym
, buf
);
949 /* PR 17512 file: 078-11867-0.004 */
952 _bfd_error_handler (_("%pB: unable to load COMDAT section name"),
961 /* The first time we've seen the symbol. */
962 union internal_auxent aux
;
964 /* If it isn't the stuff we're expecting, die;
965 The MS documentation is vague, but it
966 appears that the second entry serves BOTH
967 as the comdat symbol and the defining
968 symbol record (either C_STAT or C_EXT,
969 possibly with an aux entry with debug
970 information if it's a function.) It
971 appears the only way to find the second one
972 is to count. (On Intel, they appear to be
973 adjacent, but on Alpha, they have been
976 Here, we think we've found the first one,
977 but there's some checking we can do to be
980 if (! ((isym
.n_sclass
== C_STAT
981 || isym
.n_sclass
== C_EXT
)
982 && BTYPE (isym
.n_type
) == T_NULL
983 && isym
.n_value
== 0))
985 /* Malformed input files can trigger this test.
987 _bfd_error_handler (_("%pB: error: unexpected symbol '%s' in COMDAT section"),
992 /* FIXME LATER: MSVC generates section names
993 like .text for comdats. Gas generates
994 names like .text$foo__Fv (in the case of a
995 function). See comment above for more. */
997 if (isym
.n_sclass
== C_STAT
&& strcmp (name
, symname
) != 0)
998 /* xgettext:c-format */
999 _bfd_error_handler (_("%pB: warning: COMDAT symbol '%s'"
1000 " does not match section name '%s'"),
1001 abfd
, symname
, name
);
1005 /* PR 17512: file: e2cfe54f. */
1006 if (esym
+ bfd_coff_symesz (abfd
) >= esymend
)
1008 /* xgettext:c-format */
1009 _bfd_error_handler (_("%pB: warning: no symbol for"
1010 " section '%s' found"),
1014 /* This is the section symbol. */
1015 bfd_coff_swap_aux_in (abfd
, (esym
+ bfd_coff_symesz (abfd
)),
1016 isym
.n_type
, isym
.n_sclass
,
1017 0, isym
.n_numaux
, & aux
);
1019 target_name
= strchr (name
, '$');
1020 if (target_name
!= NULL
)
1028 /* FIXME: Microsoft uses NODUPLICATES and
1029 ASSOCIATIVE, but gnu uses ANY and
1030 SAME_SIZE. Unfortunately, gnu doesn't do
1031 the comdat symbols right. So, until we can
1032 fix it to do the right thing, we are
1033 temporarily disabling comdats for the MS
1034 types (they're used in DLLs and C++, but we
1035 don't support *their* C++ libraries anyway
1038 /* Cygwin does not follow the MS style, and
1039 uses ANY and SAME_SIZE where NODUPLICATES
1040 and ASSOCIATIVE should be used. For
1041 Interix, we just do the right thing up
1044 switch (aux
.x_scn
.x_comdat
)
1046 case IMAGE_COMDAT_SELECT_NODUPLICATES
:
1047 #ifdef STRICT_PE_FORMAT
1048 sec_flags
|= SEC_LINK_DUPLICATES_ONE_ONLY
;
1050 sec_flags
&= ~SEC_LINK_ONCE
;
1054 case IMAGE_COMDAT_SELECT_ANY
:
1055 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1058 case IMAGE_COMDAT_SELECT_SAME_SIZE
:
1059 sec_flags
|= SEC_LINK_DUPLICATES_SAME_SIZE
;
1062 case IMAGE_COMDAT_SELECT_EXACT_MATCH
:
1063 /* Not yet fully implemented ??? */
1064 sec_flags
|= SEC_LINK_DUPLICATES_SAME_CONTENTS
;
1067 /* debug$S gets this case; other
1070 /* There may be no symbol... we'll search
1071 the whole table... Is this the right
1072 place to play this game? Or should we do
1073 it when reading it in. */
1074 case IMAGE_COMDAT_SELECT_ASSOCIATIVE
:
1075 #ifdef STRICT_PE_FORMAT
1076 /* FIXME: This is not currently implemented. */
1077 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1079 sec_flags
&= ~SEC_LINK_ONCE
;
1083 default: /* 0 means "no symbol" */
1084 /* debug$F gets this case; other
1086 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1093 /* Gas mode: the first matching on partial name. */
1095 #ifndef TARGET_UNDERSCORE
1096 #define TARGET_UNDERSCORE 0
1098 /* Is this the name we're looking for ? */
1099 if (strcmp (target_name
,
1100 symname
+ (TARGET_UNDERSCORE
? 1 : 0)) != 0)
1102 /* Not the name we're looking for */
1103 esym
+= (isym
.n_numaux
+ 1) * bfd_coff_symesz (abfd
);
1108 /* MSVC mode: the lexically second symbol (or
1109 drop through from the above). */
1114 /* This must the second symbol with the
1115 section #. It is the actual symbol name.
1116 Intel puts the two adjacent, but Alpha (at
1117 least) spreads them out. */
1119 amt
= sizeof (struct coff_comdat_info
);
1120 coff_section_data (abfd
, section
)->comdat
1121 = (struct coff_comdat_info
*) bfd_alloc (abfd
, amt
);
1122 if (coff_section_data (abfd
, section
)->comdat
== NULL
)
1125 coff_section_data (abfd
, section
)->comdat
->symbol
=
1126 (esym
- esymstart
) / bfd_coff_symesz (abfd
);
1128 amt
= strlen (symname
) + 1;
1129 newname
= (char *) bfd_alloc (abfd
, amt
);
1130 if (newname
== NULL
)
1133 strcpy (newname
, symname
);
1134 coff_section_data (abfd
, section
)->comdat
->name
1142 esym
+= (isym
.n_numaux
+ 1) * bfd_coff_symesz (abfd
);
1150 /* The PE version; see above for the general comments.
1152 Since to set the SEC_LINK_ONCE and associated flags, we have to
1153 look at the symbol table anyway, we return the symbol table index
1154 of the symbol being used as the COMDAT symbol. This is admittedly
1155 ugly, but there's really nowhere else that we have access to the
1156 required information. FIXME: Is the COMDAT symbol index used for
1157 any purpose other than objdump? */
1160 styp_to_sec_flags (bfd
*abfd
,
1164 flagword
*flags_ptr
)
1166 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
1167 unsigned long styp_flags
= internal_s
->s_flags
;
1169 bfd_boolean result
= TRUE
;
1170 bfd_boolean is_dbg
= FALSE
;
1172 if (CONST_STRNEQ (name
, DOT_DEBUG
)
1173 || CONST_STRNEQ (name
, DOT_ZDEBUG
)
1174 #ifdef COFF_LONG_SECTION_NAMES
1175 || CONST_STRNEQ (name
, GNU_LINKONCE_WI
)
1176 || CONST_STRNEQ (name
, GNU_LINKONCE_WT
)
1177 /* FIXME: These definitions ought to be in a header file. */
1178 #define GNU_DEBUGLINK ".gnu_debuglink"
1179 #define GNU_DEBUGALTLINK ".gnu_debugaltlink"
1180 || CONST_STRNEQ (name
, GNU_DEBUGLINK
)
1181 || CONST_STRNEQ (name
, GNU_DEBUGALTLINK
)
1183 || CONST_STRNEQ (name
, ".stab"))
1185 /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */
1186 sec_flags
= SEC_READONLY
;
1188 /* If section disallows read, then set the NOREAD flag. */
1189 if ((styp_flags
& IMAGE_SCN_MEM_READ
) == 0)
1190 sec_flags
|= SEC_COFF_NOREAD
;
1192 /* Process each flag bit in styp_flags in turn. */
1195 unsigned long flag
= styp_flags
& - styp_flags
;
1196 char * unhandled
= NULL
;
1198 styp_flags
&= ~ flag
;
1200 /* We infer from the distinct read/write/execute bits the settings
1201 of some of the bfd flags; the actual values, should we need them,
1202 are also in pei_section_data (abfd, section)->pe_flags. */
1207 unhandled
= "STYP_DSECT";
1210 unhandled
= "STYP_GROUP";
1213 unhandled
= "STYP_COPY";
1216 unhandled
= "STYP_OVER";
1218 #ifdef SEC_NEVER_LOAD
1220 sec_flags
|= SEC_NEVER_LOAD
;
1223 case IMAGE_SCN_MEM_READ
:
1224 sec_flags
&= ~SEC_COFF_NOREAD
;
1226 case IMAGE_SCN_TYPE_NO_PAD
:
1229 case IMAGE_SCN_LNK_OTHER
:
1230 unhandled
= "IMAGE_SCN_LNK_OTHER";
1232 case IMAGE_SCN_MEM_NOT_CACHED
:
1233 unhandled
= "IMAGE_SCN_MEM_NOT_CACHED";
1235 case IMAGE_SCN_MEM_NOT_PAGED
:
1236 /* Generate a warning message rather using the 'unhandled'
1237 variable as this will allow some .sys files generate by
1238 other toolchains to be processed. See bugzilla issue 196. */
1239 /* xgettext:c-format */
1240 _bfd_error_handler (_("%pB: warning: ignoring section flag"
1241 " %s in section %s"),
1242 abfd
, "IMAGE_SCN_MEM_NOT_PAGED", name
);
1244 case IMAGE_SCN_MEM_EXECUTE
:
1245 sec_flags
|= SEC_CODE
;
1247 case IMAGE_SCN_MEM_WRITE
:
1248 sec_flags
&= ~ SEC_READONLY
;
1250 case IMAGE_SCN_MEM_DISCARDABLE
:
1251 /* The MS PE spec says that debug sections are DISCARDABLE,
1252 but the presence of a DISCARDABLE flag does not necessarily
1253 mean that a given section contains debug information. Thus
1254 we only set the SEC_DEBUGGING flag on sections that we
1255 recognise as containing debug information. */
1258 || strcmp (name
, _COMMENT
) == 0
1262 sec_flags
|= SEC_DEBUGGING
| SEC_READONLY
;
1265 case IMAGE_SCN_MEM_SHARED
:
1266 sec_flags
|= SEC_COFF_SHARED
;
1268 case IMAGE_SCN_LNK_REMOVE
:
1270 sec_flags
|= SEC_EXCLUDE
;
1272 case IMAGE_SCN_CNT_CODE
:
1273 sec_flags
|= SEC_CODE
| SEC_ALLOC
| SEC_LOAD
;
1275 case IMAGE_SCN_CNT_INITIALIZED_DATA
:
1277 sec_flags
|= SEC_DEBUGGING
;
1279 sec_flags
|= SEC_DATA
| SEC_ALLOC
| SEC_LOAD
;
1281 case IMAGE_SCN_CNT_UNINITIALIZED_DATA
:
1282 sec_flags
|= SEC_ALLOC
;
1284 case IMAGE_SCN_LNK_INFO
:
1285 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
1286 defined. coff_compute_section_file_positions uses
1287 COFF_PAGE_SIZE to ensure that the low order bits of the
1288 section VMA and the file offset match. If we don't know
1289 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
1290 and demand page loading of the file will fail. */
1291 #ifdef COFF_PAGE_SIZE
1292 sec_flags
|= SEC_DEBUGGING
;
1295 case IMAGE_SCN_LNK_COMDAT
:
1296 /* COMDAT gets very special treatment. */
1297 sec_flags
= handle_COMDAT (abfd
, sec_flags
, hdr
, name
, section
);
1300 /* Silently ignore for now. */
1304 /* If the section flag was not handled, report it here. */
1305 if (unhandled
!= NULL
)
1308 /* xgettext:c-format */
1309 (_("%pB (%s): section flag %s (%#lx) ignored"),
1310 abfd
, name
, unhandled
, flag
);
1315 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
1316 /* As a GNU extension, if the name begins with .gnu.linkonce, we
1317 only link a single copy of the section. This is used to support
1318 g++. g++ will emit each template expansion in its own section.
1319 The symbols will be defined as weak, so that multiple definitions
1320 are permitted. The GNU linker extension is to actually discard
1321 all but one of the sections. */
1322 if (CONST_STRNEQ (name
, ".gnu.linkonce"))
1323 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
1327 * flags_ptr
= sec_flags
;
1332 #endif /* COFF_WITH_PE */
1334 #define get_index(symbol) ((symbol)->udata.i)
1338 bfd_coff_backend_data
1342 .{* COFF symbol classifications. *}
1344 .enum coff_symbol_classification
1346 . {* Global symbol. *}
1347 . COFF_SYMBOL_GLOBAL,
1348 . {* Common symbol. *}
1349 . COFF_SYMBOL_COMMON,
1350 . {* Undefined symbol. *}
1351 . COFF_SYMBOL_UNDEFINED,
1352 . {* Local symbol. *}
1353 . COFF_SYMBOL_LOCAL,
1354 . {* PE section symbol. *}
1355 . COFF_SYMBOL_PE_SECTION
1358 .typedef asection * (*coff_gc_mark_hook_fn)
1359 . (asection *, struct bfd_link_info *, struct internal_reloc *,
1360 . struct coff_link_hash_entry *, struct internal_syment *);
1362 Special entry points for gdb to swap in coff symbol table parts:
1365 . void (*_bfd_coff_swap_aux_in)
1366 . (bfd *, void *, int, int, int, int, void *);
1368 . void (*_bfd_coff_swap_sym_in)
1369 . (bfd *, void *, void *);
1371 . void (*_bfd_coff_swap_lineno_in)
1372 . (bfd *, void *, void *);
1374 . unsigned int (*_bfd_coff_swap_aux_out)
1375 . (bfd *, void *, int, int, int, int, void *);
1377 . unsigned int (*_bfd_coff_swap_sym_out)
1378 . (bfd *, void *, void *);
1380 . unsigned int (*_bfd_coff_swap_lineno_out)
1381 . (bfd *, void *, void *);
1383 . unsigned int (*_bfd_coff_swap_reloc_out)
1384 . (bfd *, void *, void *);
1386 . unsigned int (*_bfd_coff_swap_filehdr_out)
1387 . (bfd *, void *, void *);
1389 . unsigned int (*_bfd_coff_swap_aouthdr_out)
1390 . (bfd *, void *, void *);
1392 . unsigned int (*_bfd_coff_swap_scnhdr_out)
1393 . (bfd *, void *, void *);
1395 . unsigned int _bfd_filhsz;
1396 . unsigned int _bfd_aoutsz;
1397 . unsigned int _bfd_scnhsz;
1398 . unsigned int _bfd_symesz;
1399 . unsigned int _bfd_auxesz;
1400 . unsigned int _bfd_relsz;
1401 . unsigned int _bfd_linesz;
1402 . unsigned int _bfd_filnmlen;
1403 . bfd_boolean _bfd_coff_long_filenames;
1405 . bfd_boolean _bfd_coff_long_section_names;
1406 . bfd_boolean (*_bfd_coff_set_long_section_names)
1409 . unsigned int _bfd_coff_default_section_alignment_power;
1410 . bfd_boolean _bfd_coff_force_symnames_in_strings;
1411 . unsigned int _bfd_coff_debug_string_prefix_length;
1412 . unsigned int _bfd_coff_max_nscns;
1414 . void (*_bfd_coff_swap_filehdr_in)
1415 . (bfd *, void *, void *);
1417 . void (*_bfd_coff_swap_aouthdr_in)
1418 . (bfd *, void *, void *);
1420 . void (*_bfd_coff_swap_scnhdr_in)
1421 . (bfd *, void *, void *);
1423 . void (*_bfd_coff_swap_reloc_in)
1424 . (bfd *abfd, void *, void *);
1426 . bfd_boolean (*_bfd_coff_bad_format_hook)
1429 . bfd_boolean (*_bfd_coff_set_arch_mach_hook)
1432 . void * (*_bfd_coff_mkobject_hook)
1433 . (bfd *, void *, void *);
1435 . bfd_boolean (*_bfd_styp_to_sec_flags_hook)
1436 . (bfd *, void *, const char *, asection *, flagword *);
1438 . void (*_bfd_set_alignment_hook)
1439 . (bfd *, asection *, void *);
1441 . bfd_boolean (*_bfd_coff_slurp_symbol_table)
1444 . bfd_boolean (*_bfd_coff_symname_in_debug)
1445 . (bfd *, struct internal_syment *);
1447 . bfd_boolean (*_bfd_coff_pointerize_aux_hook)
1448 . (bfd *, combined_entry_type *, combined_entry_type *,
1449 . unsigned int, combined_entry_type *);
1451 . bfd_boolean (*_bfd_coff_print_aux)
1452 . (bfd *, FILE *, combined_entry_type *, combined_entry_type *,
1453 . combined_entry_type *, unsigned int);
1455 . void (*_bfd_coff_reloc16_extra_cases)
1456 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
1457 . bfd_byte *, unsigned int *, unsigned int *);
1459 . int (*_bfd_coff_reloc16_estimate)
1460 . (bfd *, asection *, arelent *, unsigned int,
1461 . struct bfd_link_info *);
1463 . enum coff_symbol_classification (*_bfd_coff_classify_symbol)
1464 . (bfd *, struct internal_syment *);
1466 . bfd_boolean (*_bfd_coff_compute_section_file_positions)
1469 . bfd_boolean (*_bfd_coff_start_final_link)
1470 . (bfd *, struct bfd_link_info *);
1472 . bfd_boolean (*_bfd_coff_relocate_section)
1473 . (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
1474 . struct internal_reloc *, struct internal_syment *, asection **);
1476 . reloc_howto_type *(*_bfd_coff_rtype_to_howto)
1477 . (bfd *, asection *, struct internal_reloc *,
1478 . struct coff_link_hash_entry *, struct internal_syment *, bfd_vma *);
1480 . bfd_boolean (*_bfd_coff_adjust_symndx)
1481 . (bfd *, struct bfd_link_info *, bfd *, asection *,
1482 . struct internal_reloc *, bfd_boolean *);
1484 . bfd_boolean (*_bfd_coff_link_add_one_symbol)
1485 . (struct bfd_link_info *, bfd *, const char *, flagword,
1486 . asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
1487 . struct bfd_link_hash_entry **);
1489 . bfd_boolean (*_bfd_coff_link_output_has_begun)
1490 . (bfd *, struct coff_final_link_info *);
1492 . bfd_boolean (*_bfd_coff_final_link_postscript)
1493 . (bfd *, struct coff_final_link_info *);
1495 . bfd_boolean (*_bfd_coff_print_pdata)
1498 .} bfd_coff_backend_data;
1500 .#define coff_backend_info(abfd) \
1501 . ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
1503 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
1504 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
1506 .#define bfd_coff_swap_sym_in(a,e,i) \
1507 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
1509 .#define bfd_coff_swap_lineno_in(a,e,i) \
1510 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
1512 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
1513 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
1515 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
1516 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
1518 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
1519 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
1521 .#define bfd_coff_swap_sym_out(abfd, i,o) \
1522 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
1524 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
1525 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
1527 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
1528 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
1530 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
1531 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
1533 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1534 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1535 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1536 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1537 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1538 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1539 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
1540 .#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
1541 .#define bfd_coff_long_filenames(abfd) \
1542 . (coff_backend_info (abfd)->_bfd_coff_long_filenames)
1543 .#define bfd_coff_long_section_names(abfd) \
1544 . (coff_backend_info (abfd)->_bfd_coff_long_section_names)
1545 .#define bfd_coff_set_long_section_names(abfd, enable) \
1546 . ((coff_backend_info (abfd)->_bfd_coff_set_long_section_names) (abfd, enable))
1547 .#define bfd_coff_default_section_alignment_power(abfd) \
1548 . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
1549 .#define bfd_coff_max_nscns(abfd) \
1550 . (coff_backend_info (abfd)->_bfd_coff_max_nscns)
1552 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
1553 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
1555 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
1556 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
1558 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
1559 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
1561 .#define bfd_coff_swap_reloc_in(abfd, i, o) \
1562 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
1564 .#define bfd_coff_bad_format_hook(abfd, filehdr) \
1565 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
1567 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
1568 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
1569 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
1570 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\
1571 . (abfd, filehdr, aouthdr))
1573 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
1574 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1575 . (abfd, scnhdr, name, section, flags_ptr))
1577 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
1578 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
1580 .#define bfd_coff_slurp_symbol_table(abfd)\
1581 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
1583 .#define bfd_coff_symname_in_debug(abfd, sym)\
1584 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
1586 .#define bfd_coff_force_symnames_in_strings(abfd)\
1587 . (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
1589 .#define bfd_coff_debug_string_prefix_length(abfd)\
1590 . (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
1592 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
1593 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1594 . (abfd, file, base, symbol, aux, indaux))
1596 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\
1597 . reloc, data, src_ptr, dst_ptr)\
1598 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1599 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
1601 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
1602 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1603 . (abfd, section, reloc, shrink, link_info))
1605 .#define bfd_coff_classify_symbol(abfd, sym)\
1606 . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1609 .#define bfd_coff_compute_section_file_positions(abfd)\
1610 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1613 .#define bfd_coff_start_final_link(obfd, info)\
1614 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1616 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
1617 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1618 . (obfd, info, ibfd, o, con, rel, isyms, secs))
1619 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
1620 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1621 . (abfd, sec, rel, h, sym, addendp))
1622 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
1623 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1624 . (obfd, info, ibfd, sec, rel, adjustedp))
1625 .#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\
1626 . value, string, cp, coll, hashp)\
1627 . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1628 . (info, abfd, name, flags, section, value, string, cp, coll, hashp))
1630 .#define bfd_coff_link_output_has_begun(a,p) \
1631 . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a, p))
1632 .#define bfd_coff_final_link_postscript(a,p) \
1633 . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a, p))
1635 .#define bfd_coff_have_print_pdata(a) \
1636 . (coff_backend_info (a)->_bfd_coff_print_pdata)
1637 .#define bfd_coff_print_pdata(a,p) \
1638 . ((coff_backend_info (a)->_bfd_coff_print_pdata) (a, p))
1640 .{* Macro: Returns true if the bfd is a PE executable as opposed to a
1641 . PE object file. *}
1642 .#define bfd_pei_p(abfd) \
1643 . (CONST_STRNEQ ((abfd)->xvec->name, "pei-"))
1646 /* See whether the magic number matches. */
1649 coff_bad_format_hook (bfd
* abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1651 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1653 if (BADMAG (*internal_f
))
1661 ticoff0_bad_format_hook (bfd
*abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1663 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1665 if (COFF0_BADMAG (*internal_f
))
1674 ticoff1_bad_format_hook (bfd
*abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1676 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1678 if (COFF1_BADMAG (*internal_f
))
1685 /* Check whether this section uses an alignment other than the
1689 coff_set_custom_section_alignment (bfd
*abfd ATTRIBUTE_UNUSED
,
1691 const struct coff_section_alignment_entry
*alignment_table
,
1692 const unsigned int table_size
)
1694 const unsigned int default_alignment
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1697 for (i
= 0; i
< table_size
; ++i
)
1699 const char *secname
= bfd_section_name (section
);
1701 if (alignment_table
[i
].comparison_length
== (unsigned int) -1
1702 ? strcmp (alignment_table
[i
].name
, secname
) == 0
1703 : strncmp (alignment_table
[i
].name
, secname
,
1704 alignment_table
[i
].comparison_length
) == 0)
1707 if (i
>= table_size
)
1710 if (alignment_table
[i
].default_alignment_min
!= COFF_ALIGNMENT_FIELD_EMPTY
1711 && default_alignment
< alignment_table
[i
].default_alignment_min
)
1714 if (alignment_table
[i
].default_alignment_max
!= COFF_ALIGNMENT_FIELD_EMPTY
1715 #if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0
1716 && default_alignment
> alignment_table
[i
].default_alignment_max
1721 section
->alignment_power
= alignment_table
[i
].alignment_power
;
1724 /* Custom section alignment records. */
1726 static const struct coff_section_alignment_entry
1727 coff_section_alignment_table
[] =
1729 #ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1730 COFF_SECTION_ALIGNMENT_ENTRIES
,
1732 /* There must not be any gaps between .stabstr sections. */
1733 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1734 1, COFF_ALIGNMENT_FIELD_EMPTY
, 0 },
1735 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1736 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1737 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1738 /* Similarly for the .ctors and .dtors sections. */
1739 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1740 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1741 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1742 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 }
1745 static const unsigned int coff_section_alignment_table_size
=
1746 sizeof coff_section_alignment_table
/ sizeof coff_section_alignment_table
[0];
1748 /* Initialize a section structure with information peculiar to this
1749 particular implementation of COFF. */
1752 coff_new_section_hook (bfd
* abfd
, asection
* section
)
1754 combined_entry_type
*native
;
1756 unsigned char sclass
= C_STAT
;
1758 section
->alignment_power
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1761 if (bfd_xcoff_text_align_power (abfd
) != 0
1762 && strcmp (bfd_section_name (section
), ".text") == 0)
1763 section
->alignment_power
= bfd_xcoff_text_align_power (abfd
);
1764 else if (bfd_xcoff_data_align_power (abfd
) != 0
1765 && strcmp (bfd_section_name (section
), ".data") == 0)
1766 section
->alignment_power
= bfd_xcoff_data_align_power (abfd
);
1771 for (i
= 0; i
< XCOFF_DWSECT_NBR_NAMES
; i
++)
1772 if (strcmp (bfd_section_name (section
),
1773 xcoff_dwsect_names
[i
].name
) == 0)
1775 section
->alignment_power
= 0;
1782 /* Set up the section symbol. */
1783 if (!_bfd_generic_new_section_hook (abfd
, section
))
1786 /* Allocate aux records for section symbols, to store size and
1789 @@ The 10 is a guess at a plausible maximum number of aux entries
1790 (but shouldn't be a constant). */
1791 amt
= sizeof (combined_entry_type
) * 10;
1792 native
= (combined_entry_type
*) bfd_zalloc (abfd
, amt
);
1796 /* We don't need to set up n_name, n_value, or n_scnum in the native
1797 symbol information, since they'll be overridden by the BFD symbol
1798 anyhow. However, we do need to set the type and storage class,
1799 in case this symbol winds up getting written out. The value 0
1800 for n_numaux is already correct. */
1802 native
->is_sym
= TRUE
;
1803 native
->u
.syment
.n_type
= T_NULL
;
1804 native
->u
.syment
.n_sclass
= sclass
;
1806 coffsymbol (section
->symbol
)->native
= native
;
1808 coff_set_custom_section_alignment (abfd
, section
,
1809 coff_section_alignment_table
,
1810 coff_section_alignment_table_size
);
1815 #ifdef COFF_ALIGN_IN_SECTION_HEADER
1817 /* Set the alignment of a BFD section. */
1820 coff_set_alignment_hook (bfd
* abfd ATTRIBUTE_UNUSED
,
1824 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1827 #ifdef COFF_DECODE_ALIGNMENT
1828 i
= COFF_DECODE_ALIGNMENT(hdr
->s_flags
);
1830 section
->alignment_power
= i
;
1832 #ifdef coff_set_section_load_page
1833 coff_set_section_load_page (section
, hdr
->s_page
);
1837 #else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1841 coff_set_alignment_hook (bfd
* abfd ATTRIBUTE_UNUSED
,
1845 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1847 unsigned int alignment_power_const
1848 = hdr
->s_flags
& IMAGE_SCN_ALIGN_POWER_BIT_MASK
;
1850 switch (alignment_power_const
)
1852 case IMAGE_SCN_ALIGN_8192BYTES
:
1853 case IMAGE_SCN_ALIGN_4096BYTES
:
1854 case IMAGE_SCN_ALIGN_2048BYTES
:
1855 case IMAGE_SCN_ALIGN_1024BYTES
:
1856 case IMAGE_SCN_ALIGN_512BYTES
:
1857 case IMAGE_SCN_ALIGN_256BYTES
:
1858 case IMAGE_SCN_ALIGN_128BYTES
:
1859 case IMAGE_SCN_ALIGN_64BYTES
:
1860 case IMAGE_SCN_ALIGN_32BYTES
:
1861 case IMAGE_SCN_ALIGN_16BYTES
:
1862 case IMAGE_SCN_ALIGN_8BYTES
:
1863 case IMAGE_SCN_ALIGN_4BYTES
:
1864 case IMAGE_SCN_ALIGN_2BYTES
:
1865 case IMAGE_SCN_ALIGN_1BYTES
:
1866 section
->alignment_power
1867 = IMAGE_SCN_ALIGN_POWER_NUM (alignment_power_const
);
1873 /* In a PE image file, the s_paddr field holds the virtual size of a
1874 section, while the s_size field holds the raw size. We also keep
1875 the original section flag value, since not every bit can be
1876 mapped onto a generic BFD section bit. */
1877 if (coff_section_data (abfd
, section
) == NULL
)
1879 amt
= sizeof (struct coff_section_tdata
);
1880 section
->used_by_bfd
= bfd_zalloc (abfd
, amt
);
1881 if (section
->used_by_bfd
== NULL
)
1882 /* FIXME: Return error. */
1886 if (pei_section_data (abfd
, section
) == NULL
)
1888 amt
= sizeof (struct pei_section_tdata
);
1889 coff_section_data (abfd
, section
)->tdata
= bfd_zalloc (abfd
, amt
);
1890 if (coff_section_data (abfd
, section
)->tdata
== NULL
)
1891 /* FIXME: Return error. */
1894 pei_section_data (abfd
, section
)->virt_size
= hdr
->s_paddr
;
1895 pei_section_data (abfd
, section
)->pe_flags
= hdr
->s_flags
;
1897 section
->lma
= hdr
->s_vaddr
;
1899 /* Check for extended relocs. */
1900 if (hdr
->s_flags
& IMAGE_SCN_LNK_NRELOC_OVFL
)
1902 struct external_reloc dst
;
1903 struct internal_reloc n
;
1904 file_ptr oldpos
= bfd_tell (abfd
);
1905 bfd_size_type relsz
= bfd_coff_relsz (abfd
);
1907 if (bfd_seek (abfd
, (file_ptr
) hdr
->s_relptr
, 0) != 0)
1909 if (bfd_bread (& dst
, relsz
, abfd
) != relsz
)
1912 coff_swap_reloc_in (abfd
, &dst
, &n
);
1913 if (bfd_seek (abfd
, oldpos
, 0) != 0)
1915 section
->reloc_count
= hdr
->s_nreloc
= n
.r_vaddr
- 1;
1916 section
->rel_filepos
+= relsz
;
1918 else if (hdr
->s_nreloc
== 0xffff)
1920 (_("%pB: warning: claims to have 0xffff relocs, without overflow"),
1924 #undef ELIFALIGN_SET
1926 #else /* ! COFF_WITH_PE */
1929 /* We grossly abuse this function to handle XCOFF overflow headers.
1930 When we see one, we correct the reloc and line number counts in the
1931 real header, and remove the section we just created. */
1934 coff_set_alignment_hook (bfd
*abfd
, asection
*section
, void * scnhdr
)
1936 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1939 if ((hdr
->s_flags
& STYP_OVRFLO
) == 0)
1942 real_sec
= coff_section_from_bfd_index (abfd
, (int) hdr
->s_nreloc
);
1943 if (real_sec
== NULL
)
1946 real_sec
->reloc_count
= hdr
->s_paddr
;
1947 real_sec
->lineno_count
= hdr
->s_vaddr
;
1949 if (!bfd_section_removed_from_list (abfd
, section
))
1951 bfd_section_list_remove (abfd
, section
);
1952 --abfd
->section_count
;
1956 #else /* ! RS6000COFF_C */
1959 coff_set_alignment_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
1960 asection
*section ATTRIBUTE_UNUSED
,
1961 void *scnhdr ATTRIBUTE_UNUSED
)
1965 #endif /* ! RS6000COFF_C */
1966 #endif /* ! COFF_WITH_PE */
1967 #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
1969 #ifndef coff_mkobject
1972 coff_mkobject (bfd
* abfd
)
1974 coff_data_type
*coff
;
1975 bfd_size_type amt
= sizeof (coff_data_type
);
1977 abfd
->tdata
.coff_obj_data
= bfd_zalloc (abfd
, amt
);
1978 if (abfd
->tdata
.coff_obj_data
== NULL
)
1980 coff
= coff_data (abfd
);
1981 coff
->symbols
= NULL
;
1982 coff
->conversion_table
= NULL
;
1983 coff
->raw_syments
= NULL
;
1984 coff
->relocbase
= 0;
1985 coff
->local_toc_sym_map
= 0;
1987 /* make_abs_section(abfd);*/
1993 /* Create the COFF backend specific information. */
1995 #ifndef coff_mkobject_hook
1997 coff_mkobject_hook (bfd
* abfd
,
1999 void * aouthdr ATTRIBUTE_UNUSED
)
2001 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
2002 coff_data_type
*coff
;
2004 if (! coff_mkobject (abfd
))
2007 coff
= coff_data (abfd
);
2009 coff
->sym_filepos
= internal_f
->f_symptr
;
2011 /* These members communicate important constants about the symbol
2012 table to GDB's symbol-reading code. These `constants'
2013 unfortunately vary among coff implementations... */
2014 coff
->local_n_btmask
= N_BTMASK
;
2015 coff
->local_n_btshft
= N_BTSHFT
;
2016 coff
->local_n_tmask
= N_TMASK
;
2017 coff
->local_n_tshift
= N_TSHIFT
;
2018 coff
->local_symesz
= bfd_coff_symesz (abfd
);
2019 coff
->local_auxesz
= bfd_coff_auxesz (abfd
);
2020 coff
->local_linesz
= bfd_coff_linesz (abfd
);
2022 coff
->timestamp
= internal_f
->f_timdat
;
2024 obj_raw_syment_count (abfd
) =
2025 obj_conv_table_size (abfd
) =
2026 internal_f
->f_nsyms
;
2029 if ((internal_f
->f_flags
& F_SHROBJ
) != 0)
2030 abfd
->flags
|= DYNAMIC
;
2031 if (aouthdr
!= NULL
&& internal_f
->f_opthdr
>= bfd_coff_aoutsz (abfd
))
2033 struct internal_aouthdr
*internal_a
=
2034 (struct internal_aouthdr
*) aouthdr
;
2035 struct xcoff_tdata
*xcoff
;
2037 xcoff
= xcoff_data (abfd
);
2038 # ifdef U803XTOCMAGIC
2039 xcoff
->xcoff64
= internal_f
->f_magic
== U803XTOCMAGIC
;
2043 xcoff
->full_aouthdr
= TRUE
;
2044 xcoff
->toc
= internal_a
->o_toc
;
2045 xcoff
->sntoc
= internal_a
->o_sntoc
;
2046 xcoff
->snentry
= internal_a
->o_snentry
;
2047 bfd_xcoff_text_align_power (abfd
) = internal_a
->o_algntext
;
2048 bfd_xcoff_data_align_power (abfd
) = internal_a
->o_algndata
;
2049 xcoff
->modtype
= internal_a
->o_modtype
;
2050 xcoff
->cputype
= internal_a
->o_cputype
;
2051 xcoff
->maxdata
= internal_a
->o_maxdata
;
2052 xcoff
->maxstack
= internal_a
->o_maxstack
;
2057 /* Set the flags field from the COFF header read in. */
2058 if (! _bfd_coff_arm_set_private_flags (abfd
, internal_f
->f_flags
))
2063 /* FIXME: I'm not sure this is ever executed, since peicode.h
2064 defines coff_mkobject_hook. */
2065 if ((internal_f
->f_flags
& IMAGE_FILE_DEBUG_STRIPPED
) == 0)
2066 abfd
->flags
|= HAS_DEBUG
;
2069 if ((internal_f
->f_flags
& F_GO32STUB
) != 0)
2071 coff
->go32stub
= (char *) bfd_alloc (abfd
, (bfd_size_type
) GO32_STUBSIZE
);
2072 if (coff
->go32stub
== NULL
)
2075 if (coff
->go32stub
!= NULL
)
2076 memcpy (coff
->go32stub
, internal_f
->go32stub
, GO32_STUBSIZE
);
2082 /* Determine the machine architecture and type. FIXME: This is target
2083 dependent because the magic numbers are defined in the target
2084 dependent header files. But there is no particular need for this.
2085 If the magic numbers were moved to a separate file, this function
2086 would be target independent and would also be much more successful
2087 at linking together COFF files for different architectures. */
2090 coff_set_arch_mach_hook (bfd
*abfd
, void * filehdr
)
2092 unsigned long machine
;
2093 enum bfd_architecture arch
;
2094 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
2096 /* Zero selects the default machine for an arch. */
2098 switch (internal_f
->f_magic
)
2102 arch
= bfd_arch_powerpc
;
2108 case I386AIXMAGIC
: /* Danbury PS/2 AIX C Compiler. */
2110 case I386_APPLE_MAGIC
:
2111 case I386_FREEBSD_MAGIC
:
2112 case I386_LINUX_MAGIC
:
2113 case I386_NETBSD_MAGIC
:
2114 arch
= bfd_arch_i386
;
2119 case AMD64_APPLE_MAGIC
:
2120 case AMD64_FREEBSD_MAGIC
:
2121 case AMD64_LINUX_MAGIC
:
2122 case AMD64_NETBSD_MAGIC
:
2123 arch
= bfd_arch_i386
;
2124 machine
= bfd_mach_x86_64
;
2129 arch
= bfd_arch_ia64
;
2136 arch
= bfd_arch_arm
;
2137 machine
= bfd_arm_get_mach_from_notes (abfd
, ARM_NOTE_SECTION
);
2138 if (machine
== bfd_mach_arm_unknown
)
2140 switch (internal_f
->f_flags
& F_ARM_ARCHITECTURE_MASK
)
2142 case F_ARM_2
: machine
= bfd_mach_arm_2
; break;
2143 case F_ARM_2a
: machine
= bfd_mach_arm_2a
; break;
2144 case F_ARM_3
: machine
= bfd_mach_arm_3
; break;
2146 case F_ARM_3M
: machine
= bfd_mach_arm_3M
; break;
2147 case F_ARM_4
: machine
= bfd_mach_arm_4
; break;
2148 case F_ARM_4T
: machine
= bfd_mach_arm_4T
; break;
2149 /* The COFF header does not have enough bits available
2150 to cover all the different ARM architectures. So
2151 we interpret F_ARM_5, the highest flag value to mean
2152 "the highest ARM architecture known to BFD" which is
2153 currently the XScale. */
2154 case F_ARM_5
: machine
= bfd_mach_arm_XScale
; break;
2161 arch
= bfd_arch_z80
;
2162 switch (internal_f
->f_flags
& F_MACHMASK
)
2164 case bfd_mach_z80strict
<< 12:
2165 case bfd_mach_z80
<< 12:
2166 case bfd_mach_z80full
<< 12:
2167 case bfd_mach_r800
<< 12:
2168 case bfd_mach_gbz80
<< 12:
2169 case bfd_mach_z180
<< 12:
2170 case bfd_mach_ez80_z80
<< 12:
2171 case bfd_mach_ez80_adl
<< 12:
2172 machine
= ((unsigned)internal_f
->f_flags
& F_MACHMASK
) >> 12;
2181 arch
= bfd_arch_z8k
;
2182 switch (internal_f
->f_flags
& F_MACHMASK
)
2185 machine
= bfd_mach_z8001
;
2188 machine
= bfd_mach_z8002
;
2208 if (xcoff_data (abfd
)->cputype
!= -1)
2209 cputype
= xcoff_data (abfd
)->cputype
& 0xff;
2212 /* We did not get a value from the a.out header. If the
2213 file has not been stripped, we may be able to get the
2214 architecture information from the first symbol, if it
2215 is a .file symbol. */
2216 if (obj_raw_syment_count (abfd
) == 0)
2221 struct internal_syment sym
;
2222 bfd_size_type amt
= bfd_coff_symesz (abfd
);
2224 buf
= bfd_malloc (amt
);
2227 if (bfd_seek (abfd
, obj_sym_filepos (abfd
), SEEK_SET
) != 0
2228 || bfd_bread (buf
, amt
, abfd
) != amt
)
2233 bfd_coff_swap_sym_in (abfd
, buf
, & sym
);
2234 if (sym
.n_sclass
== C_FILE
)
2235 cputype
= sym
.n_type
& 0xff;
2242 /* FIXME: We don't handle all cases here. */
2247 arch
= bfd_xcoff_architecture (abfd
);
2248 machine
= bfd_xcoff_machine (abfd
);
2252 arch
= bfd_arch_powerpc
;
2253 machine
= bfd_mach_ppc_601
;
2255 case 2: /* 64 bit PowerPC */
2256 arch
= bfd_arch_powerpc
;
2257 machine
= bfd_mach_ppc_620
;
2260 arch
= bfd_arch_powerpc
;
2261 machine
= bfd_mach_ppc
;
2264 arch
= bfd_arch_rs6000
;
2265 machine
= bfd_mach_rs6k
;
2272 #ifdef SH_ARCH_MAGIC_BIG
2273 case SH_ARCH_MAGIC_BIG
:
2274 case SH_ARCH_MAGIC_LITTLE
:
2276 case SH_ARCH_MAGIC_WINCE
:
2282 #ifdef MIPS_ARCH_MAGIC_WINCE
2283 case MIPS_ARCH_MAGIC_WINCE
:
2284 arch
= bfd_arch_mips
;
2290 #ifdef LYNXCOFFMAGIC
2293 arch
= bfd_arch_sparc
;
2299 arch
= bfd_arch_tic30
;
2304 #ifdef TICOFF_TARGET_ARCH
2305 /* This TI COFF section should be used by all new TI COFF v0 targets. */
2307 arch
= TICOFF_TARGET_ARCH
;
2308 machine
= TICOFF_TARGET_MACHINE_GET (internal_f
->f_flags
);
2314 /* This TI COFF section should be used by all new TI COFF v1/2 targets. */
2315 /* TI COFF1 and COFF2 use the target_id field to specify which arch. */
2318 switch (internal_f
->f_target_id
)
2322 arch
= TICOFF_TARGET_ARCH
;
2323 machine
= TICOFF_TARGET_MACHINE_GET (internal_f
->f_flags
);
2327 arch
= bfd_arch_obscure
;
2329 (_("unrecognized TI COFF target id '0x%x'"),
2330 internal_f
->f_target_id
);
2338 arch
= bfd_arch_mcore
;
2342 default: /* Unreadable input file type. */
2343 arch
= bfd_arch_obscure
;
2347 bfd_default_set_arch_mach (abfd
, arch
, machine
);
2352 symname_in_debug_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2353 struct internal_syment
*sym ATTRIBUTE_UNUSED
)
2355 #ifdef SYMNAME_IN_DEBUG
2356 return SYMNAME_IN_DEBUG (sym
) != 0;
2365 #define FORCE_SYMNAMES_IN_STRINGS
2368 /* Handle the csect auxent of a C_EXT, C_AIX_WEAKEXT or C_HIDEXT symbol. */
2371 coff_pointerize_aux_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2372 combined_entry_type
*table_base
,
2373 combined_entry_type
*symbol
,
2374 unsigned int indaux
,
2375 combined_entry_type
*aux
)
2377 BFD_ASSERT (symbol
->is_sym
);
2378 int n_sclass
= symbol
->u
.syment
.n_sclass
;
2380 if (CSECT_SYM_P (n_sclass
)
2381 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2383 BFD_ASSERT (! aux
->is_sym
);
2384 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) == XTY_LD
)
2386 aux
->u
.auxent
.x_csect
.x_scnlen
.p
=
2387 table_base
+ aux
->u
.auxent
.x_csect
.x_scnlen
.l
;
2388 aux
->fix_scnlen
= 1;
2391 /* Return TRUE to indicate that the caller should not do any
2392 further work on this auxent. */
2396 /* Return FALSE to indicate that this auxent should be handled by
2402 #define coff_pointerize_aux_hook 0
2403 #endif /* ! RS6000COFF_C */
2405 /* Print an aux entry. This returns TRUE if it has printed it. */
2408 coff_print_aux (bfd
*abfd ATTRIBUTE_UNUSED
,
2409 FILE *file ATTRIBUTE_UNUSED
,
2410 combined_entry_type
*table_base ATTRIBUTE_UNUSED
,
2411 combined_entry_type
*symbol ATTRIBUTE_UNUSED
,
2412 combined_entry_type
*aux ATTRIBUTE_UNUSED
,
2413 unsigned int indaux ATTRIBUTE_UNUSED
)
2415 BFD_ASSERT (symbol
->is_sym
);
2416 BFD_ASSERT (! aux
->is_sym
);
2418 if (CSECT_SYM_P (symbol
->u
.syment
.n_sclass
)
2419 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2421 /* This is a csect entry. */
2422 fprintf (file
, "AUX ");
2423 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) != XTY_LD
)
2425 BFD_ASSERT (! aux
->fix_scnlen
);
2426 fprintf (file
, "val %5" BFD_VMA_FMT
"d",
2427 aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2431 fprintf (file
, "indx ");
2432 if (! aux
->fix_scnlen
)
2433 fprintf (file
, "%4" BFD_VMA_FMT
"d",
2434 aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2436 fprintf (file
, "%4ld",
2437 (long) (aux
->u
.auxent
.x_csect
.x_scnlen
.p
- table_base
));
2440 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2441 aux
->u
.auxent
.x_csect
.x_parmhash
,
2442 (unsigned int) aux
->u
.auxent
.x_csect
.x_snhash
,
2443 SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
),
2444 SMTYP_ALIGN (aux
->u
.auxent
.x_csect
.x_smtyp
),
2445 (unsigned int) aux
->u
.auxent
.x_csect
.x_smclas
,
2446 aux
->u
.auxent
.x_csect
.x_stab
,
2447 (unsigned int) aux
->u
.auxent
.x_csect
.x_snstab
);
2452 /* Return FALSE to indicate that no special action was taken. */
2460 To write relocations, the back end steps though the
2461 canonical relocation table and create an
2462 @code{internal_reloc}. The symbol index to use is removed from
2463 the @code{offset} field in the symbol table supplied. The
2464 address comes directly from the sum of the section base
2465 address and the relocation offset; the type is dug directly
2466 from the howto field. Then the @code{internal_reloc} is
2467 swapped into the shape of an @code{external_reloc} and written
2475 /* AUX's ld wants relocations to be sorted. */
2477 compare_arelent_ptr (const void * x
, const void * y
)
2479 const arelent
**a
= (const arelent
**) x
;
2480 const arelent
**b
= (const arelent
**) y
;
2481 bfd_size_type aadr
= (*a
)->address
;
2482 bfd_size_type badr
= (*b
)->address
;
2484 return (aadr
< badr
? -1 : badr
< aadr
? 1 : 0);
2487 #endif /* TARG_AUX */
2490 coff_write_relocs (bfd
* abfd
, int first_undef
)
2494 for (s
= abfd
->sections
; s
!= NULL
; s
= s
->next
)
2497 struct external_reloc dst
;
2504 /* Sort relocations before we write them out. */
2507 amt
= s
->reloc_count
;
2508 amt
*= sizeof (arelent
*);
2509 p
= bfd_malloc (amt
);
2512 if (s
->reloc_count
> 0)
2517 memcpy (p
, s
->orelocation
, (size_t) amt
);
2518 qsort (p
, s
->reloc_count
, sizeof (arelent
*), compare_arelent_ptr
);
2523 if (bfd_seek (abfd
, s
->rel_filepos
, SEEK_SET
) != 0)
2527 if (obj_pe (abfd
) && s
->reloc_count
>= 0xffff)
2529 /* Encode real count here as first reloc. */
2530 struct internal_reloc n
;
2532 memset (& n
, 0, sizeof (n
));
2533 /* Add one to count *this* reloc (grr). */
2534 n
.r_vaddr
= s
->reloc_count
+ 1;
2535 coff_swap_reloc_out (abfd
, &n
, &dst
);
2536 if (bfd_bwrite (& dst
, (bfd_size_type
) bfd_coff_relsz (abfd
),
2537 abfd
) != bfd_coff_relsz (abfd
))
2542 for (i
= 0; i
< s
->reloc_count
; i
++)
2544 struct internal_reloc n
;
2547 memset (& n
, 0, sizeof (n
));
2549 /* Now we've renumbered the symbols we know where the
2550 undefined symbols live in the table. Check the reloc
2551 entries for symbols who's output bfd isn't the right one.
2552 This is because the symbol was undefined (which means
2553 that all the pointers are never made to point to the same
2554 place). This is a bad thing,'cause the symbols attached
2555 to the output bfd are indexed, so that the relocation
2556 entries know which symbol index they point to. So we
2557 have to look up the output symbol here. */
2559 if (q
->sym_ptr_ptr
[0] != NULL
&& q
->sym_ptr_ptr
[0]->the_bfd
!= abfd
)
2562 const char *sname
= q
->sym_ptr_ptr
[0]->name
;
2563 asymbol
**outsyms
= abfd
->outsymbols
;
2565 for (j
= first_undef
; outsyms
[j
]; j
++)
2567 const char *intable
= outsyms
[j
]->name
;
2569 if (strcmp (intable
, sname
) == 0)
2571 /* Got a hit, so repoint the reloc. */
2572 q
->sym_ptr_ptr
= outsyms
+ j
;
2578 n
.r_vaddr
= q
->address
+ s
->vma
;
2581 /* The 29k const/consth reloc pair is a real kludge. The consth
2582 part doesn't have a symbol; it has an offset. So rebuilt
2584 if (q
->howto
->type
== R_IHCONST
)
2585 n
.r_symndx
= q
->addend
;
2588 if (q
->sym_ptr_ptr
&& q
->sym_ptr_ptr
[0] != NULL
)
2590 #ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P
2591 if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q
, s
))
2593 if ((*q
->sym_ptr_ptr
)->section
== bfd_abs_section_ptr
2594 && ((*q
->sym_ptr_ptr
)->flags
& BSF_SECTION_SYM
) != 0)
2596 /* This is a relocation relative to the absolute symbol. */
2600 n
.r_symndx
= get_index ((*(q
->sym_ptr_ptr
)));
2601 /* Check to see if the symbol reloc points to a symbol
2602 we don't have in our symbol table. */
2603 if (n
.r_symndx
> obj_conv_table_size (abfd
))
2605 bfd_set_error (bfd_error_bad_value
);
2606 /* xgettext:c-format */
2607 _bfd_error_handler (_("%pB: reloc against a non-existent"
2608 " symbol index: %ld"),
2615 #ifdef SWAP_OUT_RELOC_OFFSET
2616 n
.r_offset
= q
->addend
;
2620 /* Work out reloc type from what is required. */
2621 SELECT_RELOC (n
, q
->howto
);
2623 n
.r_type
= q
->howto
->type
;
2625 coff_swap_reloc_out (abfd
, &n
, &dst
);
2627 if (bfd_bwrite (& dst
, (bfd_size_type
) bfd_coff_relsz (abfd
),
2628 abfd
) != bfd_coff_relsz (abfd
))
2641 /* Set flags and magic number of a coff file from architecture and machine
2642 type. Result is TRUE if we can represent the arch&type, FALSE if not. */
2645 coff_set_flags (bfd
* abfd
,
2646 unsigned int *magicp ATTRIBUTE_UNUSED
,
2647 unsigned short *flagsp ATTRIBUTE_UNUSED
)
2649 switch (bfd_get_arch (abfd
))
2654 switch (bfd_get_mach (abfd
))
2656 case bfd_mach_z80strict
:
2658 case bfd_mach_z80full
:
2660 case bfd_mach_gbz80
:
2662 case bfd_mach_ez80_z80
:
2663 case bfd_mach_ez80_adl
:
2664 *flagsp
= bfd_get_mach (abfd
) << 12;
2676 switch (bfd_get_mach (abfd
))
2678 case bfd_mach_z8001
: *flagsp
= F_Z8001
; break;
2679 case bfd_mach_z8002
: *flagsp
= F_Z8002
; break;
2680 default: return FALSE
;
2686 case bfd_arch_tic30
:
2687 *magicp
= TIC30MAGIC
;
2691 #ifdef TICOFF_DEFAULT_MAGIC
2692 case TICOFF_TARGET_ARCH
:
2693 /* If there's no indication of which version we want, use the default. */
2695 *magicp
= TICOFF_DEFAULT_MAGIC
;
2698 /* We may want to output in a different COFF version. */
2699 switch (abfd
->xvec
->name
[4])
2702 *magicp
= TICOFF0MAGIC
;
2705 *magicp
= TICOFF1MAGIC
;
2708 *magicp
= TICOFF2MAGIC
;
2714 TICOFF_TARGET_MACHINE_SET (flagsp
, bfd_get_mach (abfd
));
2721 * magicp
= ARMPEMAGIC
;
2723 * magicp
= ARMMAGIC
;
2726 if (APCS_SET (abfd
))
2728 if (APCS_26_FLAG (abfd
))
2729 * flagsp
|= F_APCS26
;
2731 if (APCS_FLOAT_FLAG (abfd
))
2732 * flagsp
|= F_APCS_FLOAT
;
2734 if (PIC_FLAG (abfd
))
2737 if (INTERWORK_SET (abfd
) && INTERWORK_FLAG (abfd
))
2738 * flagsp
|= F_INTERWORK
;
2739 switch (bfd_get_mach (abfd
))
2741 case bfd_mach_arm_2
: * flagsp
|= F_ARM_2
; break;
2742 case bfd_mach_arm_2a
: * flagsp
|= F_ARM_2a
; break;
2743 case bfd_mach_arm_3
: * flagsp
|= F_ARM_3
; break;
2744 case bfd_mach_arm_3M
: * flagsp
|= F_ARM_3M
; break;
2745 case bfd_mach_arm_4
: * flagsp
|= F_ARM_4
; break;
2746 case bfd_mach_arm_4T
: * flagsp
|= F_ARM_4T
; break;
2747 case bfd_mach_arm_5
: * flagsp
|= F_ARM_5
; break;
2748 /* FIXME: we do not have F_ARM vaues greater than F_ARM_5.
2749 See also the comment in coff_set_arch_mach_hook(). */
2750 case bfd_mach_arm_5T
: * flagsp
|= F_ARM_5
; break;
2751 case bfd_mach_arm_5TE
: * flagsp
|= F_ARM_5
; break;
2752 case bfd_mach_arm_XScale
: * flagsp
|= F_ARM_5
; break;
2758 case bfd_arch_powerpc
:
2763 #if defined(I386MAGIC) || defined(AMD64MAGIC)
2765 #if defined(I386MAGIC)
2766 *magicp
= I386MAGIC
;
2769 /* Just overwrite the usual value if we're doing Lynx. */
2770 *magicp
= LYNXCOFFMAGIC
;
2772 #if defined AMD64MAGIC
2773 *magicp
= AMD64MAGIC
;
2780 *magicp
= IA64MAGIC
;
2784 #ifdef SH_ARCH_MAGIC_BIG
2786 #ifdef COFF_IMAGE_WITH_PE
2787 *magicp
= SH_ARCH_MAGIC_WINCE
;
2789 if (bfd_big_endian (abfd
))
2790 *magicp
= SH_ARCH_MAGIC_BIG
;
2792 *magicp
= SH_ARCH_MAGIC_LITTLE
;
2797 #ifdef MIPS_ARCH_MAGIC_WINCE
2799 *magicp
= MIPS_ARCH_MAGIC_WINCE
;
2804 case bfd_arch_sparc
:
2805 *magicp
= SPARCMAGIC
;
2807 /* Just overwrite the usual value if we're doing Lynx. */
2808 *magicp
= LYNXCOFFMAGIC
;
2814 case bfd_arch_rs6000
:
2816 case bfd_arch_powerpc
:
2818 BFD_ASSERT (bfd_get_flavour (abfd
) == bfd_target_xcoff_flavour
);
2819 *magicp
= bfd_xcoff_magic_number (abfd
);
2824 case bfd_arch_mcore
:
2825 * magicp
= MCOREMAGIC
;
2829 default: /* Unknown architecture. */
2830 /* Fall through to "return FALSE" below, to avoid
2831 "statement never reached" errors on the one below. */
2839 coff_set_arch_mach (bfd
* abfd
,
2840 enum bfd_architecture arch
,
2841 unsigned long machine
)
2844 unsigned short dummy2
;
2846 if (! bfd_default_set_arch_mach (abfd
, arch
, machine
))
2849 if (arch
!= bfd_arch_unknown
2850 && ! coff_set_flags (abfd
, &dummy1
, &dummy2
))
2851 return FALSE
; /* We can't represent this type. */
2853 return TRUE
; /* We're easy... */
2856 #ifdef COFF_IMAGE_WITH_PE
2858 /* This is used to sort sections by VMA, as required by PE image
2862 sort_by_secaddr (const void * arg1
, const void * arg2
)
2864 const asection
*a
= *(const asection
**) arg1
;
2865 const asection
*b
= *(const asection
**) arg2
;
2867 if (a
->vma
< b
->vma
)
2869 else if (a
->vma
> b
->vma
)
2875 #endif /* COFF_IMAGE_WITH_PE */
2877 /* Calculate the file position for each section. */
2879 #define ALIGN_SECTIONS_IN_FILE
2881 #undef ALIGN_SECTIONS_IN_FILE
2885 coff_compute_section_file_positions (bfd
* abfd
)
2888 file_ptr sofar
= bfd_coff_filhsz (abfd
);
2889 bfd_boolean align_adjust
;
2890 unsigned int target_index
;
2891 #ifdef ALIGN_SECTIONS_IN_FILE
2892 asection
*previous
= NULL
;
2896 #ifdef COFF_IMAGE_WITH_PE
2899 if (coff_data (abfd
)->link_info
2900 || (pe_data (abfd
) && pe_data (abfd
)->pe_opthdr
.FileAlignment
))
2902 page_size
= pe_data (abfd
)->pe_opthdr
.FileAlignment
;
2904 /* If no file alignment has been set, default to one.
2905 This repairs 'ld -r' for arm-wince-pe target. */
2909 /* PR 17512: file: 0ac816d3. */
2912 bfd_set_error (bfd_error_file_too_big
);
2914 /* xgettext:c-format */
2915 (_("%pB: page size is too large (0x%x)"), abfd
, page_size
);
2920 page_size
= PE_DEF_FILE_ALIGNMENT
;
2922 #ifdef COFF_PAGE_SIZE
2923 int page_size
= COFF_PAGE_SIZE
;
2928 /* On XCOFF, if we have symbols, set up the .debug section. */
2929 if (bfd_get_symcount (abfd
) > 0)
2932 bfd_size_type i
, symcount
;
2936 symcount
= bfd_get_symcount (abfd
);
2937 for (symp
= abfd
->outsymbols
, i
= 0; i
< symcount
; symp
++, i
++)
2939 coff_symbol_type
*cf
;
2941 cf
= coff_symbol_from (*symp
);
2943 && cf
->native
!= NULL
2944 && cf
->native
->is_sym
2945 && SYMNAME_IN_DEBUG (&cf
->native
->u
.syment
))
2949 len
= strlen (bfd_asymbol_name (*symp
));
2950 if (len
> SYMNMLEN
|| bfd_coff_force_symnames_in_strings (abfd
))
2951 sz
+= len
+ 1 + bfd_coff_debug_string_prefix_length (abfd
);
2958 dsec
= bfd_make_section_old_way (abfd
, DOT_DEBUG
);
2962 dsec
->flags
|= SEC_HAS_CONTENTS
;
2967 if (bfd_get_start_address (abfd
))
2968 /* A start address may have been added to the original file. In this
2969 case it will need an optional header to record it. */
2970 abfd
->flags
|= EXEC_P
;
2972 if (abfd
->flags
& EXEC_P
)
2973 sofar
+= bfd_coff_aoutsz (abfd
);
2975 else if (xcoff_data (abfd
)->full_aouthdr
)
2976 sofar
+= bfd_coff_aoutsz (abfd
);
2978 sofar
+= SMALL_AOUTSZ
;
2981 sofar
+= abfd
->section_count
* bfd_coff_scnhsz (abfd
);
2984 /* XCOFF handles overflows in the reloc and line number count fields
2985 by allocating a new section header to hold the correct counts. */
2986 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
2987 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
2988 sofar
+= bfd_coff_scnhsz (abfd
);
2991 #ifdef COFF_IMAGE_WITH_PE
2993 /* PE requires the sections to be in memory order when listed in
2994 the section headers. It also does not like empty loadable
2995 sections. The sections apparently do not have to be in the
2996 right order in the image file itself, but we do need to get the
2997 target_index values right. */
3000 asection
**section_list
;
3004 #ifdef COFF_PAGE_SIZE
3005 /* Clear D_PAGED if section alignment is smaller than
3007 if (pe_data (abfd
)->pe_opthdr
.SectionAlignment
< COFF_PAGE_SIZE
)
3008 abfd
->flags
&= ~D_PAGED
;
3012 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3015 /* We allocate an extra cell to simplify the final loop. */
3016 amt
= sizeof (struct asection
*) * (count
+ 1);
3017 section_list
= (asection
**) bfd_malloc (amt
);
3018 if (section_list
== NULL
)
3022 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3024 section_list
[i
] = current
;
3027 section_list
[i
] = NULL
;
3029 qsort (section_list
, count
, sizeof (asection
*), sort_by_secaddr
);
3031 /* Rethread the linked list into sorted order; at the same time,
3032 assign target_index values. */
3034 abfd
->sections
= NULL
;
3035 abfd
->section_last
= NULL
;
3036 for (i
= 0; i
< count
; i
++)
3038 current
= section_list
[i
];
3039 bfd_section_list_append (abfd
, current
);
3041 /* Later, if the section has zero size, we'll be throwing it
3042 away, so we don't want to number it now. Note that having
3043 a zero size and having real contents are different
3044 concepts: .bss has no contents, but (usually) non-zero
3046 if (current
->size
== 0)
3048 /* Discard. However, it still might have (valid) symbols
3049 in it, so arbitrarily set it to section 1 (indexing is
3050 1-based here; usually .text). __end__ and other
3051 contents of .endsection really have this happen.
3052 FIXME: This seems somewhat dubious. */
3053 current
->target_index
= 1;
3056 current
->target_index
= target_index
++;
3059 free (section_list
);
3061 #else /* ! COFF_IMAGE_WITH_PE */
3063 /* Set the target_index field. */
3065 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3066 current
->target_index
= target_index
++;
3068 #endif /* ! COFF_IMAGE_WITH_PE */
3070 if (target_index
>= bfd_coff_max_nscns (abfd
))
3072 bfd_set_error (bfd_error_file_too_big
);
3074 /* xgettext:c-format */
3075 (_("%pB: too many sections (%d)"), abfd
, target_index
);
3079 align_adjust
= FALSE
;
3080 for (current
= abfd
->sections
;
3082 current
= current
->next
)
3084 #ifdef COFF_IMAGE_WITH_PE
3085 /* With PE we have to pad each section to be a multiple of its
3086 page size too, and remember both sizes. */
3087 if (coff_section_data (abfd
, current
) == NULL
)
3089 bfd_size_type amt
= sizeof (struct coff_section_tdata
);
3091 current
->used_by_bfd
= bfd_zalloc (abfd
, amt
);
3092 if (current
->used_by_bfd
== NULL
)
3095 if (pei_section_data (abfd
, current
) == NULL
)
3097 bfd_size_type amt
= sizeof (struct pei_section_tdata
);
3099 coff_section_data (abfd
, current
)->tdata
= bfd_zalloc (abfd
, amt
);
3100 if (coff_section_data (abfd
, current
)->tdata
== NULL
)
3103 if (pei_section_data (abfd
, current
)->virt_size
== 0)
3104 pei_section_data (abfd
, current
)->virt_size
= current
->size
;
3107 /* Only deal with sections which have contents. */
3108 if (!(current
->flags
& SEC_HAS_CONTENTS
))
3111 current
->rawsize
= current
->size
;
3113 #ifdef COFF_IMAGE_WITH_PE
3114 /* Make sure we skip empty sections in a PE image. */
3115 if (current
->size
== 0)
3119 /* Align the sections in the file to the same boundary on
3120 which they are aligned in virtual memory. */
3121 #ifdef ALIGN_SECTIONS_IN_FILE
3122 if ((abfd
->flags
& EXEC_P
) != 0)
3124 /* Make sure this section is aligned on the right boundary - by
3125 padding the previous section up if necessary. */
3128 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
3131 /* Make sure the file offset and the vma of .text/.data are at the
3132 same page offset, so that the file can be mmap'ed without being
3133 relocated. Failing that, AIX is able to load and execute the
3134 program, but it will be silently relocated (possible as
3135 executables are PIE). But the relocation is slightly costly and
3136 complexify the use of addr2line or gdb. So better to avoid it,
3137 like does the native linker. Usually gnu ld makes sure that
3138 the vma of .text is the file offset so this issue shouldn't
3139 appear unless you are stripping such an executable.
3141 AIX loader checks the text section alignment of (vma - filepos),
3142 and the native linker doesn't try to align the text sections.
3145 0 .text 000054cc 10000128 10000128 00000128 2**5
3146 CONTENTS, ALLOC, LOAD, CODE
3149 if (!strcmp (current
->name
, _TEXT
)
3150 || !strcmp (current
->name
, _DATA
))
3152 bfd_vma align
= 4096;
3153 bfd_vma sofar_off
= sofar
% align
;
3154 bfd_vma vma_off
= current
->vma
% align
;
3156 if (vma_off
> sofar_off
)
3157 sofar
+= vma_off
- sofar_off
;
3158 else if (vma_off
< sofar_off
)
3159 sofar
+= align
+ vma_off
- sofar_off
;
3162 if (previous
!= NULL
)
3163 previous
->size
+= sofar
- old_sofar
;
3168 /* In demand paged files the low order bits of the file offset
3169 must match the low order bits of the virtual address. */
3170 #ifdef COFF_PAGE_SIZE
3171 if ((abfd
->flags
& D_PAGED
) != 0
3172 && (current
->flags
& SEC_ALLOC
) != 0)
3173 sofar
+= (current
->vma
- (bfd_vma
) sofar
) % page_size
;
3175 current
->filepos
= sofar
;
3177 #ifdef COFF_IMAGE_WITH_PE
3178 /* Set the padded size. */
3179 current
->size
= (current
->size
+ page_size
- 1) & -page_size
;
3182 sofar
+= current
->size
;
3184 #ifdef ALIGN_SECTIONS_IN_FILE
3185 /* Make sure that this section is of the right size too. */
3186 if ((abfd
->flags
& EXEC_P
) == 0)
3188 bfd_size_type old_size
;
3190 old_size
= current
->size
;
3191 current
->size
= BFD_ALIGN (current
->size
,
3192 1 << current
->alignment_power
);
3193 align_adjust
= current
->size
!= old_size
;
3194 sofar
+= current
->size
- old_size
;
3199 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
3200 align_adjust
= sofar
!= old_sofar
;
3201 current
->size
+= sofar
- old_sofar
;
3205 #ifdef COFF_IMAGE_WITH_PE
3206 /* For PE we need to make sure we pad out to the aligned
3207 size, in case the caller only writes out data to the
3209 if (pei_section_data (abfd
, current
)->virt_size
< current
->size
)
3210 align_adjust
= TRUE
;
3214 /* Force .lib sections to start at zero. The vma is then
3215 incremented in coff_set_section_contents. This is right for
3217 if (strcmp (current
->name
, _LIB
) == 0)
3218 bfd_set_section_vma (current
, 0);
3221 #ifdef ALIGN_SECTIONS_IN_FILE
3226 /* It is now safe to write to the output file. If we needed an
3227 alignment adjustment for the last section, then make sure that
3228 there is a byte at offset sofar. If there are no symbols and no
3229 relocs, then nothing follows the last section. If we don't force
3230 the last byte out, then the file may appear to be truncated. */
3236 if (bfd_seek (abfd
, sofar
- 1, SEEK_SET
) != 0
3237 || bfd_bwrite (&b
, (bfd_size_type
) 1, abfd
) != 1)
3241 /* Make sure the relocations are aligned. We don't need to make
3242 sure that this byte exists, because it will only matter if there
3243 really are relocs. */
3244 sofar
= BFD_ALIGN (sofar
, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER
);
3246 obj_relocbase (abfd
) = sofar
;
3247 abfd
->output_has_begun
= TRUE
;
3252 #ifdef COFF_IMAGE_WITH_PE
3254 static unsigned int pelength
;
3255 static unsigned int peheader
;
3258 coff_read_word (bfd
*abfd
, unsigned int *value
)
3263 status
= bfd_bread (b
, (bfd_size_type
) 2, abfd
);
3271 *value
= (unsigned int) b
[0];
3273 *value
= (unsigned int) (b
[0] + (b
[1] << 8));
3275 pelength
+= (unsigned int) status
;
3281 coff_compute_checksum (bfd
*abfd
)
3283 bfd_boolean more_data
;
3290 filepos
= (file_ptr
) 0;
3294 if (bfd_seek (abfd
, filepos
, SEEK_SET
) != 0)
3297 more_data
= coff_read_word (abfd
, &value
);
3299 total
= 0xffff & (total
+ (total
>> 0x10));
3304 return (0xffff & (total
+ (total
>> 0x10)));
3308 coff_apply_checksum (bfd
*abfd
)
3310 unsigned int computed
;
3311 unsigned int checksum
= 0;
3313 if (bfd_seek (abfd
, 0x3c, SEEK_SET
) != 0)
3316 if (!coff_read_word (abfd
, &peheader
))
3319 if (bfd_seek (abfd
, peheader
+ 0x58, SEEK_SET
) != 0)
3323 bfd_bwrite (&checksum
, (bfd_size_type
) 4, abfd
);
3325 if (bfd_seek (abfd
, peheader
, SEEK_SET
) != 0)
3328 computed
= coff_compute_checksum (abfd
);
3330 checksum
= computed
+ pelength
;
3332 if (bfd_seek (abfd
, peheader
+ 0x58, SEEK_SET
) != 0)
3335 bfd_bwrite (&checksum
, (bfd_size_type
) 4, abfd
);
3340 #endif /* COFF_IMAGE_WITH_PE */
3343 coff_write_object_contents (bfd
* abfd
)
3346 bfd_boolean hasrelocs
= FALSE
;
3347 bfd_boolean haslinno
= FALSE
;
3348 #ifdef COFF_IMAGE_WITH_PE
3349 bfd_boolean hasdebug
= FALSE
;
3352 file_ptr reloc_base
;
3353 file_ptr lineno_base
;
3355 unsigned long reloc_size
= 0, reloc_count
= 0;
3356 unsigned long lnno_size
= 0;
3357 bfd_boolean long_section_names
;
3358 asection
*text_sec
= NULL
;
3359 asection
*data_sec
= NULL
;
3360 asection
*bss_sec
= NULL
;
3361 struct internal_filehdr internal_f
;
3362 struct internal_aouthdr internal_a
;
3363 #ifdef COFF_LONG_SECTION_NAMES
3364 size_t string_size
= STRING_SIZE_SIZE
;
3367 bfd_set_error (bfd_error_system_call
);
3369 /* Make a pass through the symbol table to count line number entries and
3370 put them into the correct asections. */
3371 lnno_size
= coff_count_linenumbers (abfd
) * bfd_coff_linesz (abfd
);
3373 if (! abfd
->output_has_begun
)
3375 if (! coff_compute_section_file_positions (abfd
))
3379 reloc_base
= obj_relocbase (abfd
);
3381 /* Work out the size of the reloc and linno areas. */
3383 for (current
= abfd
->sections
; current
!= NULL
; current
=
3387 /* We store the actual reloc count in the first reloc's addr. */
3388 if (obj_pe (abfd
) && current
->reloc_count
>= 0xffff)
3391 reloc_count
+= current
->reloc_count
;
3394 reloc_size
= reloc_count
* bfd_coff_relsz (abfd
);
3396 lineno_base
= reloc_base
+ reloc_size
;
3397 sym_base
= lineno_base
+ lnno_size
;
3399 /* Indicate in each section->line_filepos its actual file address. */
3400 for (current
= abfd
->sections
; current
!= NULL
; current
=
3403 if (current
->lineno_count
)
3405 current
->line_filepos
= lineno_base
;
3406 current
->moving_line_filepos
= lineno_base
;
3407 lineno_base
+= current
->lineno_count
* bfd_coff_linesz (abfd
);
3410 current
->line_filepos
= 0;
3412 if (current
->reloc_count
)
3414 current
->rel_filepos
= reloc_base
;
3415 reloc_base
+= current
->reloc_count
* bfd_coff_relsz (abfd
);
3417 /* Extra reloc to hold real count. */
3418 if (obj_pe (abfd
) && current
->reloc_count
>= 0xffff)
3419 reloc_base
+= bfd_coff_relsz (abfd
);
3423 current
->rel_filepos
= 0;
3426 /* Write section headers to the file. */
3427 internal_f
.f_nscns
= 0;
3429 if ((abfd
->flags
& EXEC_P
) != 0)
3430 scn_base
= bfd_coff_filhsz (abfd
) + bfd_coff_aoutsz (abfd
);
3433 scn_base
= bfd_coff_filhsz (abfd
);
3436 if (xcoff_data (abfd
)->full_aouthdr
)
3437 scn_base
+= bfd_coff_aoutsz (abfd
);
3439 scn_base
+= SMALL_AOUTSZ
;
3444 if (bfd_seek (abfd
, scn_base
, SEEK_SET
) != 0)
3447 long_section_names
= FALSE
;
3448 for (current
= abfd
->sections
;
3450 current
= current
->next
)
3452 struct internal_scnhdr section
;
3453 #ifdef COFF_IMAGE_WITH_PE
3454 bfd_boolean is_reloc_section
= FALSE
;
3456 if (strcmp (current
->name
, DOT_RELOC
) == 0)
3458 is_reloc_section
= TRUE
;
3460 pe_data (abfd
)->has_reloc_section
= 1;
3464 internal_f
.f_nscns
++;
3466 strncpy (section
.s_name
, current
->name
, SCNNMLEN
);
3468 #ifdef COFF_LONG_SECTION_NAMES
3469 /* Handle long section names as in PE. This must be compatible
3470 with the code in coff_write_symbols and _bfd_coff_final_link. */
3471 if (bfd_coff_long_section_names (abfd
))
3475 len
= strlen (current
->name
);
3478 /* The s_name field is defined to be NUL-padded but need not be
3479 NUL-terminated. We use a temporary buffer so that we can still
3480 sprintf all eight chars without splatting a terminating NUL
3481 over the first byte of the following member (s_paddr). */
3482 /* PR 21096: The +20 is to stop a bogus warning from gcc7 about
3483 a possible buffer overflow. */
3484 char s_name_buf
[SCNNMLEN
+ 1 + 20];
3486 /* An inherent limitation of the /nnnnnnn notation used to indicate
3487 the offset of the long name in the string table is that we
3488 cannot address entries beyone the ten million byte boundary. */
3489 if (string_size
>= 10000000)
3491 bfd_set_error (bfd_error_file_too_big
);
3493 /* xgettext:c-format */
3494 (_("%pB: section %pA: string table overflow at offset %ld"),
3495 abfd
, current
, (unsigned long) string_size
);
3499 /* We do not need to use snprintf here as we have already verfied
3500 that string_size is not too big, plus we have an overlarge
3501 buffer, just in case. */
3502 sprintf (s_name_buf
, "/%lu", (unsigned long) string_size
);
3503 /* Then strncpy takes care of any padding for us. */
3504 strncpy (section
.s_name
, s_name_buf
, SCNNMLEN
);
3505 string_size
+= len
+ 1;
3506 long_section_names
= TRUE
;
3512 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3513 Ian Taylor <ian@cygnus.com>. */
3514 if (strcmp (current
->name
, _LIB
) == 0)
3515 section
.s_vaddr
= 0;
3518 section
.s_vaddr
= current
->vma
;
3519 section
.s_paddr
= current
->lma
;
3520 section
.s_size
= current
->size
;
3521 #ifdef coff_get_section_load_page
3522 section
.s_page
= coff_get_section_load_page (current
);
3528 section
.s_paddr
= 0;
3530 #ifdef COFF_IMAGE_WITH_PE
3531 /* Reminder: s_paddr holds the virtual size of the section. */
3532 if (coff_section_data (abfd
, current
) != NULL
3533 && pei_section_data (abfd
, current
) != NULL
)
3534 section
.s_paddr
= pei_section_data (abfd
, current
)->virt_size
;
3536 section
.s_paddr
= 0;
3539 /* If this section has no size or is unloadable then the scnptr
3541 if (current
->size
== 0
3542 || (current
->flags
& (SEC_LOAD
| SEC_HAS_CONTENTS
)) == 0)
3543 section
.s_scnptr
= 0;
3545 section
.s_scnptr
= current
->filepos
;
3547 section
.s_relptr
= current
->rel_filepos
;
3548 section
.s_lnnoptr
= current
->line_filepos
;
3549 section
.s_nreloc
= current
->reloc_count
;
3550 section
.s_nlnno
= current
->lineno_count
;
3551 #ifndef COFF_IMAGE_WITH_PE
3552 /* In PEI, relocs come in the .reloc section. */
3553 if (current
->reloc_count
!= 0)
3556 if (current
->lineno_count
!= 0)
3558 #ifdef COFF_IMAGE_WITH_PE
3559 if ((current
->flags
& SEC_DEBUGGING
) != 0
3560 && ! is_reloc_section
)
3566 /* Indicate the use of an XCOFF overflow section header. */
3567 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3569 section
.s_nreloc
= 0xffff;
3570 section
.s_nlnno
= 0xffff;
3575 section
.s_flags
= sec_to_styp_flags (current
->name
, current
->flags
);
3577 if (!strcmp (current
->name
, _TEXT
))
3579 else if (!strcmp (current
->name
, _DATA
))
3581 else if (!strcmp (current
->name
, _BSS
))
3584 #ifdef COFF_ENCODE_ALIGNMENT
3585 COFF_ENCODE_ALIGNMENT(section
, current
->alignment_power
);
3586 if ((unsigned int)COFF_DECODE_ALIGNMENT(section
.s_flags
)
3587 != current
->alignment_power
)
3589 bfd_boolean warn
= coff_data (abfd
)->link_info
3590 && !bfd_link_relocatable (coff_data (abfd
)->link_info
);
3593 /* xgettext:c-format */
3594 (_("%pB:%s section %s: alignment 2**%u not representable"),
3595 abfd
, warn
? " warning:" : "", current
->name
,
3596 current
->alignment_power
);
3599 bfd_set_error (bfd_error_nonrepresentable_section
);
3605 #ifdef COFF_IMAGE_WITH_PE
3606 /* Suppress output of the sections if they are null. ld
3607 includes the bss and data sections even if there is no size
3608 assigned to them. NT loader doesn't like it if these section
3609 headers are included if the sections themselves are not
3610 needed. See also coff_compute_section_file_positions. */
3611 if (section
.s_size
== 0)
3612 internal_f
.f_nscns
--;
3617 bfd_size_type amt
= bfd_coff_scnhsz (abfd
);
3619 if (coff_swap_scnhdr_out (abfd
, §ion
, &buff
) == 0
3620 || bfd_bwrite (& buff
, amt
, abfd
) != amt
)
3625 /* PE stores COMDAT section information in the symbol table. If
3626 this section is supposed to have some COMDAT info, track down
3627 the symbol in the symbol table and modify it. */
3628 if ((current
->flags
& SEC_LINK_ONCE
) != 0)
3630 unsigned int i
, count
;
3632 coff_symbol_type
*csym
= NULL
;
3636 count
= bfd_get_symcount (abfd
);
3637 for (i
= 0, psym
= abfd
->outsymbols
; i
< count
; i
++, psym
++)
3639 if ((*psym
)->section
!= current
)
3642 /* Remember the location of the first symbol in this
3644 if (psymsec
== NULL
)
3647 /* See if this is the section symbol. */
3648 if (strcmp ((*psym
)->name
, current
->name
) == 0)
3650 csym
= coff_symbol_from (*psym
);
3652 || csym
->native
== NULL
3653 || ! csym
->native
->is_sym
3654 || csym
->native
->u
.syment
.n_numaux
< 1
3655 || csym
->native
->u
.syment
.n_sclass
!= C_STAT
3656 || csym
->native
->u
.syment
.n_type
!= T_NULL
)
3659 /* Here *PSYM is the section symbol for CURRENT. */
3666 Note that we might not if we're converting the file from
3667 some other object file format. */
3670 combined_entry_type
*aux
;
3672 /* We don't touch the x_checksum field. The
3673 x_associated field is not currently supported. */
3675 aux
= csym
->native
+ 1;
3676 BFD_ASSERT (! aux
->is_sym
);
3677 switch (current
->flags
& SEC_LINK_DUPLICATES
)
3679 case SEC_LINK_DUPLICATES_DISCARD
:
3680 aux
->u
.auxent
.x_scn
.x_comdat
= IMAGE_COMDAT_SELECT_ANY
;
3683 case SEC_LINK_DUPLICATES_ONE_ONLY
:
3684 aux
->u
.auxent
.x_scn
.x_comdat
=
3685 IMAGE_COMDAT_SELECT_NODUPLICATES
;
3688 case SEC_LINK_DUPLICATES_SAME_SIZE
:
3689 aux
->u
.auxent
.x_scn
.x_comdat
=
3690 IMAGE_COMDAT_SELECT_SAME_SIZE
;
3693 case SEC_LINK_DUPLICATES_SAME_CONTENTS
:
3694 aux
->u
.auxent
.x_scn
.x_comdat
=
3695 IMAGE_COMDAT_SELECT_EXACT_MATCH
;
3699 /* The COMDAT symbol must be the first symbol from this
3700 section in the symbol table. In order to make this
3701 work, we move the COMDAT symbol before the first
3702 symbol we found in the search above. It's OK to
3703 rearrange the symbol table at this point, because
3704 coff_renumber_symbols is going to rearrange it
3705 further and fix up all the aux entries. */
3706 if (psym
!= psymsec
)
3712 for (pcopy
= psym
; pcopy
> psymsec
; pcopy
--)
3713 pcopy
[0] = pcopy
[-1];
3718 #endif /* COFF_WITH_PE */
3723 /* XCOFF handles overflows in the reloc and line number count fields
3724 by creating a new section header to hold the correct values. */
3725 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3727 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3729 struct internal_scnhdr scnhdr
;
3733 internal_f
.f_nscns
++;
3734 memcpy (scnhdr
.s_name
, ".ovrflo", 8);
3735 scnhdr
.s_paddr
= current
->reloc_count
;
3736 scnhdr
.s_vaddr
= current
->lineno_count
;
3738 scnhdr
.s_scnptr
= 0;
3739 scnhdr
.s_relptr
= current
->rel_filepos
;
3740 scnhdr
.s_lnnoptr
= current
->line_filepos
;
3741 scnhdr
.s_nreloc
= current
->target_index
;
3742 scnhdr
.s_nlnno
= current
->target_index
;
3743 scnhdr
.s_flags
= STYP_OVRFLO
;
3744 amt
= bfd_coff_scnhsz (abfd
);
3745 if (coff_swap_scnhdr_out (abfd
, &scnhdr
, &buff
) == 0
3746 || bfd_bwrite (& buff
, amt
, abfd
) != amt
)
3753 /* OK, now set up the filehdr... */
3755 /* Don't include the internal abs section in the section count */
3757 /* We will NOT put a fucking timestamp in the header here. Every time you
3758 put it back, I will come in and take it out again. I'm sorry. This
3759 field does not belong here. We fill it with a 0 so it compares the
3760 same but is not a reasonable time. -- gnu@cygnus.com */
3761 internal_f
.f_timdat
= 0;
3762 internal_f
.f_flags
= 0;
3764 if (abfd
->flags
& EXEC_P
)
3765 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3768 internal_f
.f_opthdr
= 0;
3771 if (xcoff_data (abfd
)->full_aouthdr
)
3772 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3774 internal_f
.f_opthdr
= SMALL_AOUTSZ
;
3780 internal_f
.f_flags
|= F_RELFLG
;
3782 internal_f
.f_flags
|= F_LNNO
;
3783 if (abfd
->flags
& EXEC_P
)
3784 internal_f
.f_flags
|= F_EXEC
;
3785 #ifdef COFF_IMAGE_WITH_PE
3787 internal_f
.f_flags
|= IMAGE_FILE_DEBUG_STRIPPED
;
3788 if (pe_data (abfd
)->real_flags
& IMAGE_FILE_LARGE_ADDRESS_AWARE
)
3789 internal_f
.f_flags
|= IMAGE_FILE_LARGE_ADDRESS_AWARE
;
3792 #ifndef COFF_WITH_pex64
3794 internal_f
.f_flags
|= IMAGE_FILE_32BIT_MACHINE
;
3796 if (bfd_little_endian (abfd
))
3797 internal_f
.f_flags
|= F_AR32WR
;
3799 internal_f
.f_flags
|= F_AR32W
;
3804 /* Target id is used in TI COFF v1 and later; COFF0 won't use this field,
3805 but it doesn't hurt to set it internally. */
3806 internal_f
.f_target_id
= TI_TARGET_ID
;
3809 /* FIXME, should do something about the other byte orders and
3813 if ((abfd
->flags
& DYNAMIC
) != 0)
3814 internal_f
.f_flags
|= F_SHROBJ
;
3815 if (bfd_get_section_by_name (abfd
, _LOADER
) != NULL
)
3816 internal_f
.f_flags
|= F_DYNLOAD
;
3819 memset (&internal_a
, 0, sizeof internal_a
);
3821 /* Set up architecture-dependent stuff. */
3823 unsigned int magic
= 0;
3824 unsigned short flags
= 0;
3826 coff_set_flags (abfd
, &magic
, &flags
);
3827 internal_f
.f_magic
= magic
;
3828 internal_f
.f_flags
|= flags
;
3829 /* ...and the "opt"hdr... */
3831 #ifdef TICOFF_AOUT_MAGIC
3832 internal_a
.magic
= TICOFF_AOUT_MAGIC
;
3833 #define __A_MAGIC_SET__
3837 #define __A_MAGIC_SET__
3838 internal_a
.magic
= ZMAGIC
;
3842 #define __A_MAGIC_SET__
3843 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
3846 #if defined MCORE_PE
3847 #define __A_MAGIC_SET__
3848 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
3852 #define __A_MAGIC_SET__
3854 internal_a
.magic
= LYNXCOFFMAGIC
;
3856 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR64_MAGIC
;
3858 internal_a
.magic
= ZMAGIC
;
3863 #define __A_MAGIC_SET__
3864 internal_a
.magic
= PE32PMAGIC
;
3868 #define __A_MAGIC_SET__
3870 internal_a
.magic
= LYNXCOFFMAGIC
;
3875 #define __A_MAGIC_SET__
3876 internal_a
.magic
= (abfd
->flags
& D_PAGED
) ? RS6K_AOUTHDR_ZMAGIC
:
3877 (abfd
->flags
& WP_TEXT
) ? RS6K_AOUTHDR_NMAGIC
:
3878 RS6K_AOUTHDR_OMAGIC
;
3881 #if defined(SH) && defined(COFF_WITH_PE)
3882 #define __A_MAGIC_SET__
3883 internal_a
.magic
= SH_PE_MAGIC
;
3886 #if defined(MIPS) && defined(COFF_WITH_PE)
3887 #define __A_MAGIC_SET__
3888 internal_a
.magic
= MIPS_PE_MAGIC
;
3891 #ifndef __A_MAGIC_SET__
3892 #include "Your aouthdr magic number is not being set!"
3894 #undef __A_MAGIC_SET__
3898 /* FIXME: Does anybody ever set this to another value? */
3899 internal_a
.vstamp
= 0;
3901 /* Now should write relocs, strings, syms. */
3902 obj_sym_filepos (abfd
) = sym_base
;
3904 if (bfd_get_symcount (abfd
) != 0)
3908 if (!coff_renumber_symbols (abfd
, &firstundef
))
3910 coff_mangle_symbols (abfd
);
3911 if (! coff_write_symbols (abfd
))
3913 if (! coff_write_linenumbers (abfd
))
3915 if (! coff_write_relocs (abfd
, firstundef
))
3918 #ifdef COFF_LONG_SECTION_NAMES
3919 else if (long_section_names
&& ! obj_coff_strings_written (abfd
))
3921 /* If we have long section names we have to write out the string
3922 table even if there are no symbols. */
3923 if (! coff_write_symbols (abfd
))
3927 #ifdef COFF_IMAGE_WITH_PE
3929 else if ((abfd
->flags
& EXEC_P
) != 0)
3933 /* PowerPC PE appears to require that all executable files be
3934 rounded up to the page size. */
3937 (file_ptr
) BFD_ALIGN (sym_base
, COFF_PAGE_SIZE
) - 1,
3939 || bfd_bwrite (&b
, (bfd_size_type
) 1, abfd
) != 1)
3945 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
3946 backend linker, and obj_raw_syment_count is not valid until after
3947 coff_write_symbols is called. */
3948 if (obj_raw_syment_count (abfd
) != 0)
3950 internal_f
.f_symptr
= sym_base
;
3952 /* AIX appears to require that F_RELFLG not be set if there are
3953 local symbols but no relocations. */
3954 internal_f
.f_flags
&=~ F_RELFLG
;
3959 if (long_section_names
)
3960 internal_f
.f_symptr
= sym_base
;
3962 internal_f
.f_symptr
= 0;
3963 internal_f
.f_flags
|= F_LSYMS
;
3968 internal_a
.tsize
= text_sec
->size
;
3969 internal_a
.text_start
= internal_a
.tsize
? text_sec
->vma
: 0;
3973 internal_a
.dsize
= data_sec
->size
;
3974 internal_a
.data_start
= internal_a
.dsize
? data_sec
->vma
: 0;
3978 internal_a
.bsize
= bss_sec
->size
;
3979 if (internal_a
.bsize
&& bss_sec
->vma
< internal_a
.data_start
)
3980 internal_a
.data_start
= bss_sec
->vma
;
3983 internal_a
.entry
= bfd_get_start_address (abfd
);
3984 internal_f
.f_nsyms
= obj_raw_syment_count (abfd
);
3987 if (xcoff_data (abfd
)->full_aouthdr
)
3990 asection
*loader_sec
;
3992 internal_a
.vstamp
= 1;
3994 internal_a
.o_snentry
= xcoff_data (abfd
)->snentry
;
3995 if (internal_a
.o_snentry
== 0)
3996 internal_a
.entry
= (bfd_vma
) -1;
3998 if (text_sec
!= NULL
)
4000 internal_a
.o_sntext
= text_sec
->target_index
;
4001 internal_a
.o_algntext
= bfd_section_alignment (text_sec
);
4005 internal_a
.o_sntext
= 0;
4006 internal_a
.o_algntext
= 0;
4008 if (data_sec
!= NULL
)
4010 internal_a
.o_sndata
= data_sec
->target_index
;
4011 internal_a
.o_algndata
= bfd_section_alignment (data_sec
);
4015 internal_a
.o_sndata
= 0;
4016 internal_a
.o_algndata
= 0;
4018 loader_sec
= bfd_get_section_by_name (abfd
, ".loader");
4019 if (loader_sec
!= NULL
)
4020 internal_a
.o_snloader
= loader_sec
->target_index
;
4022 internal_a
.o_snloader
= 0;
4023 if (bss_sec
!= NULL
)
4024 internal_a
.o_snbss
= bss_sec
->target_index
;
4026 internal_a
.o_snbss
= 0;
4028 toc
= xcoff_data (abfd
)->toc
;
4029 internal_a
.o_toc
= toc
;
4030 internal_a
.o_sntoc
= xcoff_data (abfd
)->sntoc
;
4032 internal_a
.o_modtype
= xcoff_data (abfd
)->modtype
;
4033 if (xcoff_data (abfd
)->cputype
!= -1)
4034 internal_a
.o_cputype
= xcoff_data (abfd
)->cputype
;
4037 switch (bfd_get_arch (abfd
))
4039 case bfd_arch_rs6000
:
4040 internal_a
.o_cputype
= 4;
4042 case bfd_arch_powerpc
:
4043 if (bfd_get_mach (abfd
) == bfd_mach_ppc
)
4044 internal_a
.o_cputype
= 3;
4046 internal_a
.o_cputype
= 1;
4052 internal_a
.o_maxstack
= xcoff_data (abfd
)->maxstack
;
4053 internal_a
.o_maxdata
= xcoff_data (abfd
)->maxdata
;
4059 /* After object contents are finalized so we can compute a reasonable hash,
4060 but before header is written so we can update it to point to debug directory. */
4061 struct pe_tdata
*pe
= pe_data (abfd
);
4063 if (pe
->build_id
.after_write_object_contents
!= NULL
)
4064 (*pe
->build_id
.after_write_object_contents
) (abfd
);
4068 /* Now write header. */
4069 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
) != 0)
4074 bfd_size_type amount
= bfd_coff_filhsz (abfd
);
4076 buff
= (char *) bfd_malloc (amount
);
4080 bfd_coff_swap_filehdr_out (abfd
, & internal_f
, buff
);
4081 amount
= bfd_bwrite (buff
, amount
, abfd
);
4085 if (amount
!= bfd_coff_filhsz (abfd
))
4089 if (abfd
->flags
& EXEC_P
)
4091 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
4092 include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */
4094 bfd_size_type amount
= bfd_coff_aoutsz (abfd
);
4096 buff
= (char *) bfd_malloc (amount
);
4100 coff_swap_aouthdr_out (abfd
, & internal_a
, buff
);
4101 amount
= bfd_bwrite (buff
, amount
, abfd
);
4105 if (amount
!= bfd_coff_aoutsz (abfd
))
4108 #ifdef COFF_IMAGE_WITH_PE
4109 if (! coff_apply_checksum (abfd
))
4119 /* XCOFF seems to always write at least a small a.out header. */
4120 coff_swap_aouthdr_out (abfd
, & internal_a
, & buff
);
4121 if (xcoff_data (abfd
)->full_aouthdr
)
4122 size
= bfd_coff_aoutsz (abfd
);
4124 size
= SMALL_AOUTSZ
;
4125 if (bfd_bwrite (& buff
, (bfd_size_type
) size
, abfd
) != size
)
4134 coff_set_section_contents (bfd
* abfd
,
4136 const void * location
,
4138 bfd_size_type count
)
4140 if (! abfd
->output_has_begun
) /* Set by bfd.c handler. */
4142 if (! coff_compute_section_file_positions (abfd
))
4146 #if defined(_LIB) && !defined(TARG_AUX)
4147 /* The physical address field of a .lib section is used to hold the
4148 number of shared libraries in the section. This code counts the
4149 number of sections being written, and increments the lma field
4152 I have found no documentation on the contents of this section.
4153 Experimentation indicates that the section contains zero or more
4154 records, each of which has the following structure:
4156 - a (four byte) word holding the length of this record, in words,
4157 - a word that always seems to be set to "2",
4158 - the path to a shared library, null-terminated and then padded
4159 to a whole word boundary.
4161 bfd_assert calls have been added to alert if an attempt is made
4162 to write a section which doesn't follow these assumptions. The
4163 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
4164 <robertl@arnet.com> (Thanks!).
4166 Gvran Uddeborg <gvran@uddeborg.pp.se>. */
4167 if (strcmp (section
->name
, _LIB
) == 0)
4169 bfd_byte
*rec
, *recend
;
4171 rec
= (bfd_byte
*) location
;
4172 recend
= rec
+ count
;
4173 while (rec
< recend
)
4176 rec
+= bfd_get_32 (abfd
, rec
) * 4;
4179 BFD_ASSERT (rec
== recend
);
4183 /* Don't write out bss sections - one way to do this is to
4184 see if the filepos has not been set. */
4185 if (section
->filepos
== 0)
4188 if (bfd_seek (abfd
, section
->filepos
+ offset
, SEEK_SET
) != 0)
4194 return bfd_bwrite (location
, count
, abfd
) == count
;
4198 buy_and_read (bfd
*abfd
, file_ptr where
,
4199 bfd_size_type nmemb
, bfd_size_type size
)
4201 void *area
= bfd_alloc2 (abfd
, nmemb
, size
);
4206 if (bfd_seek (abfd
, where
, SEEK_SET
) != 0
4207 || bfd_bread (area
, size
, abfd
) != size
)
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
;
4267 if (asect
->lineno_count
== 0)
4270 BFD_ASSERT (asect
->lineno
== NULL
);
4272 if (asect
->lineno_count
> asect
->size
)
4275 (_("%pB: warning: line number count (%#lx) exceeds section size (%#lx)"),
4276 abfd
, (unsigned long) asect
->lineno_count
, (unsigned long) asect
->size
);
4280 lineno_cache
= (alent
*) bfd_alloc2 (abfd
,
4281 (bfd_size_type
) asect
->lineno_count
+ 1,
4283 if (lineno_cache
== NULL
)
4286 native_lineno
= (LINENO
*) buy_and_read (abfd
, asect
->line_filepos
,
4287 asect
->lineno_count
,
4288 bfd_coff_linesz (abfd
));
4289 if (native_lineno
== NULL
)
4292 (_("%pB: warning: line number table read failed"), abfd
);
4293 bfd_release (abfd
, lineno_cache
);
4297 cache_ptr
= lineno_cache
;
4298 asect
->lineno
= lineno_cache
;
4299 src
= native_lineno
;
4303 for (counter
= 0; counter
< asect
->lineno_count
; counter
++, src
++)
4305 struct internal_lineno dst
;
4307 bfd_coff_swap_lineno_in (abfd
, src
, &dst
);
4308 cache_ptr
->line_number
= dst
.l_lnno
;
4309 /* Appease memory checkers that get all excited about
4310 uninitialised memory when copying alents if u.offset is
4311 larger than u.sym. (64-bit BFD on 32-bit host.) */
4312 memset (&cache_ptr
->u
, 0, sizeof (cache_ptr
->u
));
4314 if (cache_ptr
->line_number
== 0)
4316 combined_entry_type
* ent
;
4317 unsigned long symndx
;
4318 coff_symbol_type
*sym
;
4321 symndx
= dst
.l_addr
.l_symndx
;
4322 if (symndx
>= obj_raw_syment_count (abfd
))
4325 /* xgettext:c-format */
4326 (_("%pB: warning: illegal symbol index 0x%lx in line number entry %d"),
4327 abfd
, symndx
, counter
);
4328 cache_ptr
->line_number
= -1;
4333 ent
= obj_raw_syments (abfd
) + symndx
;
4334 /* FIXME: We should not be casting between ints and
4335 pointers like this. */
4339 /* xgettext:c-format */
4340 (_("%pB: warning: illegal symbol index 0x%lx in line number entry %d"),
4341 abfd
, symndx
, counter
);
4342 cache_ptr
->line_number
= -1;
4346 sym
= (coff_symbol_type
*) (ent
->u
.syment
._n
._n_n
._n_zeroes
);
4348 /* PR 17512 file: 078-10659-0.004 */
4349 if (sym
< obj_symbols (abfd
)
4350 || sym
>= obj_symbols (abfd
) + bfd_get_symcount (abfd
))
4353 /* xgettext:c-format */
4354 (_("%pB: warning: illegal symbol in line number entry %d"),
4356 cache_ptr
->line_number
= -1;
4363 cache_ptr
->u
.sym
= (asymbol
*) sym
;
4364 if (sym
->lineno
!= NULL
)
4366 /* xgettext:c-format */
4367 (_("%pB: warning: duplicate line number information for `%s'"),
4368 abfd
, bfd_asymbol_name (&sym
->symbol
));
4370 sym
->lineno
= cache_ptr
;
4371 if (sym
->symbol
.value
< prev_offset
)
4373 prev_offset
= sym
->symbol
.value
;
4375 else if (!have_func
)
4376 /* Drop line information that has no associated function.
4377 PR 17521: file: 078-10659-0.004. */
4380 cache_ptr
->u
.offset
= dst
.l_addr
.l_paddr
- bfd_section_vma (asect
);
4384 asect
->lineno_count
= cache_ptr
- lineno_cache
;
4385 memset (cache_ptr
, 0, sizeof (*cache_ptr
));
4386 bfd_release (abfd
, native_lineno
);
4388 /* On some systems (eg AIX5.3) the lineno table may not be sorted. */
4391 /* Sort the table. */
4393 alent
*n_lineno_cache
;
4395 /* Create a table of functions. */
4396 func_table
= (alent
**) bfd_alloc2 (abfd
, nbr_func
, sizeof (alent
*));
4397 if (func_table
!= NULL
)
4399 alent
**p
= func_table
;
4402 for (i
= 0; i
< asect
->lineno_count
; i
++)
4403 if (lineno_cache
[i
].line_number
== 0)
4404 *p
++ = &lineno_cache
[i
];
4406 BFD_ASSERT ((unsigned int) (p
- func_table
) == nbr_func
);
4408 /* Sort by functions. */
4409 qsort (func_table
, nbr_func
, sizeof (alent
*), coff_sort_func_alent
);
4411 /* Create the new sorted table. */
4412 n_lineno_cache
= (alent
*) bfd_alloc2 (abfd
, asect
->lineno_count
,
4414 if (n_lineno_cache
!= NULL
)
4416 alent
*n_cache_ptr
= n_lineno_cache
;
4418 for (i
= 0; i
< nbr_func
; i
++)
4420 coff_symbol_type
*sym
;
4421 alent
*old_ptr
= func_table
[i
];
4423 /* Update the function entry. */
4424 sym
= (coff_symbol_type
*) old_ptr
->u
.sym
;
4425 /* PR binutils/17512: Point the lineno to where
4426 this entry will be after the memcpy below. */
4427 sym
->lineno
= lineno_cache
+ (n_cache_ptr
- n_lineno_cache
);
4428 /* Copy the function and line number entries. */
4430 *n_cache_ptr
++ = *old_ptr
++;
4431 while (old_ptr
->line_number
!= 0);
4434 memcpy (lineno_cache
, n_lineno_cache
,
4435 asect
->lineno_count
* sizeof (alent
));
4439 bfd_release (abfd
, func_table
);
4448 /* Slurp in the symbol table, converting it to generic form. Note
4449 that if coff_relocate_section is defined, the linker will read
4450 symbols via coff_link_add_symbols, rather than via this routine. */
4453 coff_slurp_symbol_table (bfd
* abfd
)
4455 combined_entry_type
*native_symbols
;
4456 coff_symbol_type
*cached_area
;
4457 unsigned int *table_ptr
;
4458 unsigned int number_of_symbols
= 0;
4459 bfd_boolean ret
= TRUE
;
4461 if (obj_symbols (abfd
))
4464 /* Read in the symbol table. */
4465 if ((native_symbols
= coff_get_normalized_symtab (abfd
)) == NULL
)
4468 /* Allocate enough room for all the symbols in cached form. */
4469 cached_area
= (coff_symbol_type
*) bfd_alloc2 (abfd
,
4470 obj_raw_syment_count (abfd
),
4471 sizeof (coff_symbol_type
));
4472 if (cached_area
== NULL
)
4475 table_ptr
= (unsigned int *) bfd_zalloc2 (abfd
, obj_raw_syment_count (abfd
),
4476 sizeof (unsigned int));
4478 if (table_ptr
== NULL
)
4482 coff_symbol_type
*dst
= cached_area
;
4483 unsigned int last_native_index
= obj_raw_syment_count (abfd
);
4484 unsigned int this_index
= 0;
4486 while (this_index
< last_native_index
)
4488 combined_entry_type
*src
= native_symbols
+ this_index
;
4489 table_ptr
[this_index
] = number_of_symbols
;
4491 dst
->symbol
.the_bfd
= abfd
;
4492 BFD_ASSERT (src
->is_sym
);
4493 dst
->symbol
.name
= (char *) (src
->u
.syment
._n
._n_n
._n_offset
);
4494 /* We use the native name field to point to the cached field. */
4495 src
->u
.syment
._n
._n_n
._n_zeroes
= (bfd_hostptr_t
) dst
;
4496 dst
->symbol
.section
= coff_section_from_bfd_index (abfd
,
4497 src
->u
.syment
.n_scnum
);
4498 dst
->symbol
.flags
= 0;
4499 /* PR 17512: file: 079-7098-0.001:0.1. */
4500 dst
->symbol
.value
= 0;
4501 dst
->done_lineno
= FALSE
;
4503 switch (src
->u
.syment
.n_sclass
)
4509 case C_THUMBEXTFUNC
:
4513 #if ! defined _AIX52 && ! defined AIX_WEAK_SUPPORT
4518 case C_SYSTEM
: /* System Wide variable. */
4521 /* In PE, 0x68 (104) denotes a section symbol. */
4523 /* In PE, 0x69 (105) denotes a weak external symbol. */
4526 switch (coff_classify_symbol (abfd
, &src
->u
.syment
))
4528 case COFF_SYMBOL_GLOBAL
:
4529 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
4530 #if defined COFF_WITH_PE
4531 /* PE sets the symbol to a value relative to the
4532 start of the section. */
4533 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4535 dst
->symbol
.value
= (src
->u
.syment
.n_value
4536 - dst
->symbol
.section
->vma
);
4538 if (ISFCN ((src
->u
.syment
.n_type
)))
4539 /* A function ext does not go at the end of a
4541 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4544 case COFF_SYMBOL_COMMON
:
4545 dst
->symbol
.section
= bfd_com_section_ptr
;
4546 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4549 case COFF_SYMBOL_UNDEFINED
:
4550 dst
->symbol
.section
= bfd_und_section_ptr
;
4551 dst
->symbol
.value
= 0;
4554 case COFF_SYMBOL_PE_SECTION
:
4555 dst
->symbol
.flags
|= BSF_EXPORT
| BSF_SECTION_SYM
;
4556 dst
->symbol
.value
= 0;
4559 case COFF_SYMBOL_LOCAL
:
4560 dst
->symbol
.flags
= BSF_LOCAL
;
4561 #if defined COFF_WITH_PE
4562 /* PE sets the symbol to a value relative to the
4563 start of the section. */
4564 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4566 dst
->symbol
.value
= (src
->u
.syment
.n_value
4567 - dst
->symbol
.section
->vma
);
4569 if (ISFCN ((src
->u
.syment
.n_type
)))
4570 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4575 /* A symbol with a csect entry should not go at the end. */
4576 if (src
->u
.syment
.n_numaux
> 0)
4577 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
4581 if (src
->u
.syment
.n_sclass
== C_NT_WEAK
)
4582 dst
->symbol
.flags
|= BSF_WEAK
;
4584 if (src
->u
.syment
.n_sclass
== C_SECTION
4585 && src
->u
.syment
.n_scnum
> 0)
4586 dst
->symbol
.flags
= BSF_LOCAL
;
4588 if (src
->u
.syment
.n_sclass
== C_WEAKEXT
4590 || src
->u
.syment
.n_sclass
== C_AIX_WEAKEXT
4593 dst
->symbol
.flags
|= BSF_WEAK
;
4597 case C_STAT
: /* Static. */
4599 case C_THUMBSTAT
: /* Thumb static. */
4600 case C_THUMBLABEL
: /* Thumb label. */
4601 case C_THUMBSTATFUNC
:/* Thumb static function. */
4604 case C_DWARF
: /* A label in a dwarf section. */
4605 case C_INFO
: /* A label in a comment section. */
4607 case C_LABEL
: /* Label. */
4608 if (src
->u
.syment
.n_scnum
== N_DEBUG
)
4609 dst
->symbol
.flags
= BSF_DEBUGGING
;
4611 dst
->symbol
.flags
= BSF_LOCAL
;
4613 /* Base the value as an index from the base of the
4614 section, if there is one. */
4615 if (dst
->symbol
.section
)
4617 #if defined COFF_WITH_PE
4618 /* PE sets the symbol to a value relative to the
4619 start of the section. */
4620 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4622 dst
->symbol
.value
= (src
->u
.syment
.n_value
4623 - dst
->symbol
.section
->vma
);
4627 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4630 case C_MOS
: /* Member of structure. */
4631 case C_EOS
: /* End of structure. */
4632 case C_REGPARM
: /* Register parameter. */
4633 case C_REG
: /* register variable. */
4634 /* C_AUTOARG conflicts with TI COFF C_UEXT. */
4635 case C_TPDEF
: /* Type definition. */
4637 case C_AUTO
: /* Automatic variable. */
4638 case C_FIELD
: /* Bit field. */
4639 case C_ENTAG
: /* Enumeration tag. */
4640 case C_MOE
: /* Member of enumeration. */
4641 case C_MOU
: /* Member of union. */
4642 case C_UNTAG
: /* Union tag. */
4643 dst
->symbol
.flags
= BSF_DEBUGGING
;
4644 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4647 case C_FILE
: /* File name. */
4648 case C_STRTAG
: /* Structure tag. */
4665 dst
->symbol
.flags
= BSF_DEBUGGING
;
4666 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4670 case C_BINCL
: /* Beginning of include file. */
4671 case C_EINCL
: /* Ending of include file. */
4672 /* The value is actually a pointer into the line numbers
4673 of the file. We locate the line number entry, and
4674 set the section to the section which contains it, and
4675 the value to the index in that section. */
4679 dst
->symbol
.flags
= BSF_DEBUGGING
;
4680 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
4681 if (sec
->line_filepos
<= (file_ptr
) src
->u
.syment
.n_value
4682 && ((file_ptr
) (sec
->line_filepos
4683 + sec
->lineno_count
* bfd_coff_linesz (abfd
))
4684 > (file_ptr
) src
->u
.syment
.n_value
))
4687 dst
->symbol
.value
= 0;
4690 dst
->symbol
.section
= sec
;
4691 dst
->symbol
.value
= ((src
->u
.syment
.n_value
4692 - sec
->line_filepos
)
4693 / bfd_coff_linesz (abfd
));
4700 dst
->symbol
.flags
= BSF_DEBUGGING
;
4702 /* The value is actually a symbol index. Save a pointer
4703 to the symbol instead of the index. FIXME: This
4704 should use a union. */
4705 src
->u
.syment
.n_value
=
4706 (long) (intptr_t) (native_symbols
+ src
->u
.syment
.n_value
);
4707 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4712 case C_BLOCK
: /* ".bb" or ".eb". */
4713 case C_FCN
: /* ".bf" or ".ef" (or PE ".lf"). */
4714 case C_EFCN
: /* Physical end of function. */
4715 #if defined COFF_WITH_PE
4716 /* PE sets the symbol to a value relative to the start
4718 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4719 if (strcmp (dst
->symbol
.name
, ".bf") != 0)
4721 /* PE uses funny values for .ef and .lf; don't
4723 dst
->symbol
.flags
= BSF_DEBUGGING
;
4726 dst
->symbol
.flags
= BSF_DEBUGGING
| BSF_DEBUGGING_RELOC
;
4728 /* Base the value as an index from the base of the
4730 dst
->symbol
.flags
= BSF_LOCAL
;
4731 dst
->symbol
.value
= (src
->u
.syment
.n_value
4732 - dst
->symbol
.section
->vma
);
4736 case C_STATLAB
: /* Static load time label. */
4737 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4738 dst
->symbol
.flags
= BSF_GLOBAL
;
4742 /* PE DLLs sometimes have zeroed out symbols for some
4743 reason. Just ignore them without a warning. */
4744 if (src
->u
.syment
.n_type
== 0
4745 && src
->u
.syment
.n_value
== 0
4746 && src
->u
.syment
.n_scnum
== 0)
4749 /* XCOFF specific: deleted entry. */
4750 if (src
->u
.syment
.n_value
== C_NULL_VALUE
)
4754 case C_EXTDEF
: /* External definition. */
4755 case C_ULABEL
: /* Undefined label. */
4756 case C_USTATIC
: /* Undefined static. */
4757 #ifndef COFF_WITH_PE
4758 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4759 class to represent a section symbol. */
4760 case C_LINE
: /* line # reformatted as symbol table entry. */
4761 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4762 case C_ALIAS
: /* Duplicate tag. */
4764 /* New storage classes for TI COFF. */
4766 case C_UEXT
: /* Tentative external definition. */
4768 case C_EXTLAB
: /* External load time label. */
4771 /* xgettext:c-format */
4772 (_("%pB: unrecognized storage class %d for %s symbol `%s'"),
4773 abfd
, src
->u
.syment
.n_sclass
,
4774 dst
->symbol
.section
->name
, dst
->symbol
.name
);
4777 case C_HIDDEN
: /* Ext symbol in dmert public lib. */
4778 /* PR 20722: These symbols can also be generated by
4779 building DLLs with --gc-sections enabled. */
4780 dst
->symbol
.flags
= BSF_DEBUGGING
;
4781 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4786 dst
->symbol
.udata
.i
= 0;
4789 this_index
+= (src
->u
.syment
.n_numaux
) + 1;
4791 number_of_symbols
++;
4795 obj_symbols (abfd
) = cached_area
;
4796 obj_raw_syments (abfd
) = native_symbols
;
4798 abfd
->symcount
= number_of_symbols
;
4799 obj_convert (abfd
) = table_ptr
;
4800 /* Slurp the line tables for each section too. */
4807 if (! coff_slurp_line_table (abfd
, p
))
4816 /* Classify a COFF symbol. A couple of targets have globally visible
4817 symbols which are not class C_EXT, and this handles those. It also
4818 recognizes some special PE cases. */
4820 static enum coff_symbol_classification
4821 coff_classify_symbol (bfd
*abfd
,
4822 struct internal_syment
*syment
)
4824 /* FIXME: This partially duplicates the switch in
4825 coff_slurp_symbol_table. */
4826 switch (syment
->n_sclass
)
4832 case C_THUMBEXTFUNC
:
4840 if (syment
->n_scnum
== 0)
4842 if (syment
->n_value
== 0)
4843 return COFF_SYMBOL_UNDEFINED
;
4845 return COFF_SYMBOL_COMMON
;
4847 return COFF_SYMBOL_GLOBAL
;
4854 if (syment
->n_sclass
== C_STAT
)
4856 if (syment
->n_scnum
== 0)
4857 /* The Microsoft compiler sometimes generates these if a
4858 small static function is inlined every time it is used.
4859 The function is discarded, but the symbol table entry
4861 return COFF_SYMBOL_LOCAL
;
4863 #ifdef STRICT_PE_FORMAT
4864 /* This is correct for Microsoft generated objects, but it
4865 breaks gas generated objects. */
4866 if (syment
->n_value
== 0)
4870 char buf
[SYMNMLEN
+ 1];
4872 name
= _bfd_coff_internal_syment_name (abfd
, syment
, buf
)
4873 sec
= coff_section_from_bfd_index (abfd
, syment
->n_scnum
);
4874 if (sec
!= NULL
&& name
!= NULL
4875 && (strcmp (bfd_section_name (sec
), name
) == 0))
4876 return COFF_SYMBOL_PE_SECTION
;
4880 return COFF_SYMBOL_LOCAL
;
4883 if (syment
->n_sclass
== C_SECTION
)
4885 /* In some cases in a DLL generated by the Microsoft linker, the
4886 n_value field will contain garbage. FIXME: This should
4887 probably be handled by the swapping function instead. */
4888 syment
->n_value
= 0;
4889 if (syment
->n_scnum
== 0)
4890 return COFF_SYMBOL_UNDEFINED
;
4891 return COFF_SYMBOL_PE_SECTION
;
4893 #endif /* COFF_WITH_PE */
4895 /* If it is not a global symbol, we presume it is a local symbol. */
4896 if (syment
->n_scnum
== 0)
4898 char buf
[SYMNMLEN
+ 1];
4901 /* xgettext:c-format */
4902 (_("warning: %pB: local symbol `%s' has no section"),
4903 abfd
, _bfd_coff_internal_syment_name (abfd
, syment
, buf
));
4906 return COFF_SYMBOL_LOCAL
;
4913 Coff relocations are easily transformed into the internal BFD form
4916 Reading a coff relocation table is done in the following stages:
4918 o Read the entire coff relocation table into memory.
4920 o Process each relocation in turn; first swap it from the
4921 external to the internal form.
4923 o Turn the symbol referenced in the relocation's symbol index
4924 into a pointer into the canonical symbol table.
4925 This table is the same as the one returned by a call to
4926 @code{bfd_canonicalize_symtab}. The back end will call that
4927 routine and save the result if a canonicalization hasn't been done.
4929 o The reloc index is turned into a pointer to a howto
4930 structure, in a back end specific way. For instance, the 386
4931 uses the @code{r_type} to directly produce an index
4932 into a howto table vector.
4936 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
4938 coff_symbol_type *coffsym = NULL; \
4940 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
4941 coffsym = (obj_symbols (abfd) \
4942 + (cache_ptr->sym_ptr_ptr - symbols)); \
4944 coffsym = coff_symbol_from (ptr); \
4945 if (coffsym != NULL \
4946 && coffsym->native->is_sym \
4947 && coffsym->native->u.syment.n_scnum == 0) \
4948 cache_ptr->addend = 0; \
4949 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
4950 && ptr->section != NULL) \
4951 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
4953 cache_ptr->addend = 0; \
4958 coff_slurp_reloc_table (bfd
* abfd
, sec_ptr asect
, asymbol
** symbols
)
4960 RELOC
*native_relocs
;
4961 arelent
*reloc_cache
;
4965 if (asect
->relocation
)
4967 if (asect
->reloc_count
== 0)
4969 if (asect
->flags
& SEC_CONSTRUCTOR
)
4971 if (!coff_slurp_symbol_table (abfd
))
4974 native_relocs
= (RELOC
*) buy_and_read (abfd
, asect
->rel_filepos
,
4976 bfd_coff_relsz (abfd
));
4977 reloc_cache
= (arelent
*) bfd_alloc2 (abfd
, asect
->reloc_count
,
4980 if (reloc_cache
== NULL
|| native_relocs
== NULL
)
4983 for (idx
= 0; idx
< asect
->reloc_count
; idx
++)
4985 struct internal_reloc dst
;
4986 struct external_reloc
*src
;
4987 #ifndef RELOC_PROCESSING
4991 cache_ptr
= reloc_cache
+ idx
;
4992 src
= native_relocs
+ idx
;
4995 coff_swap_reloc_in (abfd
, src
, &dst
);
4997 #ifdef RELOC_PROCESSING
4998 RELOC_PROCESSING (cache_ptr
, &dst
, symbols
, abfd
, asect
);
5000 cache_ptr
->address
= dst
.r_vaddr
;
5002 if (dst
.r_symndx
!= -1 && symbols
!= NULL
)
5004 if (dst
.r_symndx
< 0 || dst
.r_symndx
>= obj_conv_table_size (abfd
))
5007 /* xgettext:c-format */
5008 (_("%pB: warning: illegal symbol index %ld in relocs"),
5009 abfd
, dst
.r_symndx
);
5010 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
5015 cache_ptr
->sym_ptr_ptr
= (symbols
5016 + obj_convert (abfd
)[dst
.r_symndx
]);
5017 ptr
= *(cache_ptr
->sym_ptr_ptr
);
5022 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
5026 /* The symbols definitions that we have read in have been
5027 relocated as if their sections started at 0. But the offsets
5028 refering to the symbols in the raw data have not been
5029 modified, so we have to have a negative addend to compensate.
5031 Note that symbols which used to be common must be left alone. */
5033 /* Calculate any reloc addend by looking at the symbol. */
5034 CALC_ADDEND (abfd
, ptr
, dst
, cache_ptr
);
5037 cache_ptr
->address
-= asect
->vma
;
5038 /* !! cache_ptr->section = NULL;*/
5040 /* Fill in the cache_ptr->howto field from dst.r_type. */
5041 RTYPE2HOWTO (cache_ptr
, &dst
);
5042 #endif /* RELOC_PROCESSING */
5044 if (cache_ptr
->howto
== NULL
)
5047 /* xgettext:c-format */
5048 (_("%pB: illegal relocation type %d at address %#" PRIx64
),
5049 abfd
, dst
.r_type
, (uint64_t) dst
.r_vaddr
);
5050 bfd_set_error (bfd_error_bad_value
);
5055 asect
->relocation
= reloc_cache
;
5059 #ifndef coff_rtype_to_howto
5062 /* Get the howto structure for a reloc. This is only used if the file
5063 including this one defines coff_relocate_section to be
5064 _bfd_coff_generic_relocate_section, so it is OK if it does not
5065 always work. It is the responsibility of the including file to
5066 make sure it is reasonable if it is needed. */
5068 static reloc_howto_type
*
5069 coff_rtype_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
,
5070 asection
*sec ATTRIBUTE_UNUSED
,
5071 struct internal_reloc
*rel ATTRIBUTE_UNUSED
,
5072 struct coff_link_hash_entry
*h ATTRIBUTE_UNUSED
,
5073 struct internal_syment
*sym ATTRIBUTE_UNUSED
,
5074 bfd_vma
*addendp ATTRIBUTE_UNUSED
)
5078 genrel
.howto
= NULL
;
5079 RTYPE2HOWTO (&genrel
, rel
);
5080 return genrel
.howto
;
5083 #else /* ! defined (RTYPE2HOWTO) */
5085 #define coff_rtype_to_howto NULL
5087 #endif /* ! defined (RTYPE2HOWTO) */
5088 #endif /* ! defined (coff_rtype_to_howto) */
5090 /* This is stupid. This function should be a boolean predicate. */
5093 coff_canonicalize_reloc (bfd
* abfd
,
5098 arelent
*tblptr
= section
->relocation
;
5099 unsigned int count
= 0;
5101 if (section
->flags
& SEC_CONSTRUCTOR
)
5103 /* This section has relocs made up by us, they are not in the
5104 file, so take them out of their chain and place them into
5105 the data area provided. */
5106 arelent_chain
*chain
= section
->constructor_chain
;
5108 for (count
= 0; count
< section
->reloc_count
; count
++)
5110 *relptr
++ = &chain
->relent
;
5111 chain
= chain
->next
;
5116 if (! coff_slurp_reloc_table (abfd
, section
, symbols
))
5119 tblptr
= section
->relocation
;
5121 for (; count
++ < section
->reloc_count
;)
5122 *relptr
++ = tblptr
++;
5125 return section
->reloc_count
;
5128 #ifndef coff_set_reloc
5129 #define coff_set_reloc _bfd_generic_set_reloc
5132 #ifndef coff_reloc16_estimate
5133 #define coff_reloc16_estimate dummy_reloc16_estimate
5136 dummy_reloc16_estimate (bfd
*abfd ATTRIBUTE_UNUSED
,
5137 asection
*input_section ATTRIBUTE_UNUSED
,
5138 arelent
*reloc ATTRIBUTE_UNUSED
,
5139 unsigned int shrink ATTRIBUTE_UNUSED
,
5140 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
)
5148 #ifndef coff_reloc16_extra_cases
5150 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
5152 /* This works even if abort is not declared in any header file. */
5155 dummy_reloc16_extra_cases (bfd
*abfd ATTRIBUTE_UNUSED
,
5156 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
,
5157 struct bfd_link_order
*link_order ATTRIBUTE_UNUSED
,
5158 arelent
*reloc ATTRIBUTE_UNUSED
,
5159 bfd_byte
*data ATTRIBUTE_UNUSED
,
5160 unsigned int *src_ptr ATTRIBUTE_UNUSED
,
5161 unsigned int *dst_ptr ATTRIBUTE_UNUSED
)
5167 /* If coff_relocate_section is defined, we can use the optimized COFF
5168 backend linker. Otherwise we must continue to use the old linker. */
5170 #ifdef coff_relocate_section
5172 #ifndef coff_bfd_link_hash_table_create
5173 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
5175 #ifndef coff_bfd_link_add_symbols
5176 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
5178 #ifndef coff_bfd_final_link
5179 #define coff_bfd_final_link _bfd_coff_final_link
5182 #else /* ! defined (coff_relocate_section) */
5184 #define coff_relocate_section NULL
5185 #ifndef coff_bfd_link_hash_table_create
5186 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
5188 #ifndef coff_bfd_link_add_symbols
5189 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
5191 #define coff_bfd_final_link _bfd_generic_final_link
5193 #endif /* ! defined (coff_relocate_section) */
5195 #define coff_bfd_link_just_syms _bfd_generic_link_just_syms
5196 #define coff_bfd_copy_link_hash_symbol_type \
5197 _bfd_generic_copy_link_hash_symbol_type
5198 #define coff_bfd_link_split_section _bfd_generic_link_split_section
5200 #define coff_bfd_link_check_relocs _bfd_generic_link_check_relocs
5202 #ifndef coff_start_final_link
5203 #define coff_start_final_link NULL
5206 #ifndef coff_adjust_symndx
5207 #define coff_adjust_symndx NULL
5210 #ifndef coff_link_add_one_symbol
5211 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
5214 #ifndef coff_link_output_has_begun
5217 coff_link_output_has_begun (bfd
* abfd
,
5218 struct coff_final_link_info
* info ATTRIBUTE_UNUSED
)
5220 return abfd
->output_has_begun
;
5224 #ifndef coff_final_link_postscript
5227 coff_final_link_postscript (bfd
* abfd ATTRIBUTE_UNUSED
,
5228 struct coff_final_link_info
* pfinfo ATTRIBUTE_UNUSED
)
5234 #ifndef coff_SWAP_aux_in
5235 #define coff_SWAP_aux_in coff_swap_aux_in
5237 #ifndef coff_SWAP_sym_in
5238 #define coff_SWAP_sym_in coff_swap_sym_in
5240 #ifndef coff_SWAP_lineno_in
5241 #define coff_SWAP_lineno_in coff_swap_lineno_in
5243 #ifndef coff_SWAP_aux_out
5244 #define coff_SWAP_aux_out coff_swap_aux_out
5246 #ifndef coff_SWAP_sym_out
5247 #define coff_SWAP_sym_out coff_swap_sym_out
5249 #ifndef coff_SWAP_lineno_out
5250 #define coff_SWAP_lineno_out coff_swap_lineno_out
5252 #ifndef coff_SWAP_reloc_out
5253 #define coff_SWAP_reloc_out coff_swap_reloc_out
5255 #ifndef coff_SWAP_filehdr_out
5256 #define coff_SWAP_filehdr_out coff_swap_filehdr_out
5258 #ifndef coff_SWAP_aouthdr_out
5259 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
5261 #ifndef coff_SWAP_scnhdr_out
5262 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
5264 #ifndef coff_SWAP_reloc_in
5265 #define coff_SWAP_reloc_in coff_swap_reloc_in
5267 #ifndef coff_SWAP_filehdr_in
5268 #define coff_SWAP_filehdr_in coff_swap_filehdr_in
5270 #ifndef coff_SWAP_aouthdr_in
5271 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
5273 #ifndef coff_SWAP_scnhdr_in
5274 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
5277 static bfd_coff_backend_data bfd_coff_std_swap_table ATTRIBUTE_UNUSED
=
5279 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5280 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5281 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5282 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5283 coff_SWAP_scnhdr_out
,
5284 FILHSZ
, AOUTSZ
, SCNHSZ
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
5285 #ifdef COFF_LONG_FILENAMES
5290 COFF_DEFAULT_LONG_SECTION_NAMES
,
5291 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5292 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5297 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5303 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5304 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
5305 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5306 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5307 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5308 coff_classify_symbol
, coff_compute_section_file_positions
,
5309 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5310 coff_adjust_symndx
, coff_link_add_one_symbol
,
5311 coff_link_output_has_begun
, coff_final_link_postscript
,
5316 /* COFF0 differs in file/section header size and relocation entry size. */
5318 static bfd_coff_backend_data ticoff0_swap_table
=
5320 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5321 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5322 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5323 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5324 coff_SWAP_scnhdr_out
,
5325 FILHSZ_V0
, AOUTSZ
, SCNHSZ_V01
, SYMESZ
, AUXESZ
, RELSZ_V0
, LINESZ
, FILNMLEN
,
5326 #ifdef COFF_LONG_FILENAMES
5331 COFF_DEFAULT_LONG_SECTION_NAMES
,
5332 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5333 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5338 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5344 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5345 coff_SWAP_reloc_in
, ticoff0_bad_format_hook
, coff_set_arch_mach_hook
,
5346 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5347 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5348 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5349 coff_classify_symbol
, coff_compute_section_file_positions
,
5350 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5351 coff_adjust_symndx
, coff_link_add_one_symbol
,
5352 coff_link_output_has_begun
, coff_final_link_postscript
,
5358 /* COFF1 differs in section header size. */
5360 static bfd_coff_backend_data ticoff1_swap_table
=
5362 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5363 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5364 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5365 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5366 coff_SWAP_scnhdr_out
,
5367 FILHSZ
, AOUTSZ
, SCNHSZ_V01
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
5368 #ifdef COFF_LONG_FILENAMES
5373 COFF_DEFAULT_LONG_SECTION_NAMES
,
5374 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5375 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5380 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5386 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5387 coff_SWAP_reloc_in
, ticoff1_bad_format_hook
, coff_set_arch_mach_hook
,
5388 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5389 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5390 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5391 coff_classify_symbol
, coff_compute_section_file_positions
,
5392 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5393 coff_adjust_symndx
, coff_link_add_one_symbol
,
5394 coff_link_output_has_begun
, coff_final_link_postscript
,
5395 bfd_pe_print_pdata
/* huh */
5399 #ifdef COFF_WITH_PE_BIGOBJ
5400 /* The UID for bigobj files. */
5402 static const char header_bigobj_classid
[16] =
5404 0xC7, 0xA1, 0xBA, 0xD1,
5408 0xFA, 0xF6, 0x6A, 0xA4, 0xDC, 0xB8
5411 /* Swap routines. */
5414 coff_bigobj_swap_filehdr_in (bfd
* abfd
, void * src
, void * dst
)
5416 struct external_ANON_OBJECT_HEADER_BIGOBJ
*filehdr_src
=
5417 (struct external_ANON_OBJECT_HEADER_BIGOBJ
*) src
;
5418 struct internal_filehdr
*filehdr_dst
= (struct internal_filehdr
*) dst
;
5420 filehdr_dst
->f_magic
= H_GET_16 (abfd
, filehdr_src
->Machine
);
5421 filehdr_dst
->f_nscns
= H_GET_32 (abfd
, filehdr_src
->NumberOfSections
);
5422 filehdr_dst
->f_timdat
= H_GET_32 (abfd
, filehdr_src
->TimeDateStamp
);
5423 filehdr_dst
->f_symptr
=
5424 GET_FILEHDR_SYMPTR (abfd
, filehdr_src
->PointerToSymbolTable
);
5425 filehdr_dst
->f_nsyms
= H_GET_32 (abfd
, filehdr_src
->NumberOfSymbols
);
5426 filehdr_dst
->f_opthdr
= 0;
5427 filehdr_dst
->f_flags
= 0;
5429 /* Check other magic numbers. */
5430 if (H_GET_16 (abfd
, filehdr_src
->Sig1
) != IMAGE_FILE_MACHINE_UNKNOWN
5431 || H_GET_16 (abfd
, filehdr_src
->Sig2
) != 0xffff
5432 || H_GET_16 (abfd
, filehdr_src
->Version
) != 2
5433 || memcmp (filehdr_src
->ClassID
, header_bigobj_classid
, 16) != 0)
5434 filehdr_dst
->f_opthdr
= 0xffff;
5436 /* Note that CLR metadata are ignored. */
5440 coff_bigobj_swap_filehdr_out (bfd
*abfd
, void * in
, void * out
)
5442 struct internal_filehdr
*filehdr_in
= (struct internal_filehdr
*) in
;
5443 struct external_ANON_OBJECT_HEADER_BIGOBJ
*filehdr_out
=
5444 (struct external_ANON_OBJECT_HEADER_BIGOBJ
*) out
;
5446 memset (filehdr_out
, 0, sizeof (*filehdr_out
));
5448 H_PUT_16 (abfd
, IMAGE_FILE_MACHINE_UNKNOWN
, filehdr_out
->Sig1
);
5449 H_PUT_16 (abfd
, 0xffff, filehdr_out
->Sig2
);
5450 H_PUT_16 (abfd
, 2, filehdr_out
->Version
);
5451 memcpy (filehdr_out
->ClassID
, header_bigobj_classid
, 16);
5452 H_PUT_16 (abfd
, filehdr_in
->f_magic
, filehdr_out
->Machine
);
5453 H_PUT_32 (abfd
, filehdr_in
->f_nscns
, filehdr_out
->NumberOfSections
);
5454 H_PUT_32 (abfd
, filehdr_in
->f_timdat
, filehdr_out
->TimeDateStamp
);
5455 PUT_FILEHDR_SYMPTR (abfd
, filehdr_in
->f_symptr
,
5456 filehdr_out
->PointerToSymbolTable
);
5457 H_PUT_32 (abfd
, filehdr_in
->f_nsyms
, filehdr_out
->NumberOfSymbols
);
5459 return bfd_coff_filhsz (abfd
);
5463 coff_bigobj_swap_sym_in (bfd
* abfd
, void * ext1
, void * in1
)
5465 SYMENT_BIGOBJ
*ext
= (SYMENT_BIGOBJ
*) ext1
;
5466 struct internal_syment
*in
= (struct internal_syment
*) in1
;
5468 if (ext
->e
.e_name
[0] == 0)
5470 in
->_n
._n_n
._n_zeroes
= 0;
5471 in
->_n
._n_n
._n_offset
= H_GET_32 (abfd
, ext
->e
.e
.e_offset
);
5475 #if SYMNMLEN != E_SYMNMLEN
5476 #error we need to cope with truncating or extending SYMNMLEN
5478 memcpy (in
->_n
._n_name
, ext
->e
.e_name
, SYMNMLEN
);
5482 in
->n_value
= H_GET_32 (abfd
, ext
->e_value
);
5483 BFD_ASSERT (sizeof (in
->n_scnum
) >= 4);
5484 in
->n_scnum
= H_GET_32 (abfd
, ext
->e_scnum
);
5485 in
->n_type
= H_GET_16 (abfd
, ext
->e_type
);
5486 in
->n_sclass
= H_GET_8 (abfd
, ext
->e_sclass
);
5487 in
->n_numaux
= H_GET_8 (abfd
, ext
->e_numaux
);
5491 coff_bigobj_swap_sym_out (bfd
* abfd
, void * inp
, void * extp
)
5493 struct internal_syment
*in
= (struct internal_syment
*) inp
;
5494 SYMENT_BIGOBJ
*ext
= (SYMENT_BIGOBJ
*) extp
;
5496 if (in
->_n
._n_name
[0] == 0)
5498 H_PUT_32 (abfd
, 0, ext
->e
.e
.e_zeroes
);
5499 H_PUT_32 (abfd
, in
->_n
._n_n
._n_offset
, ext
->e
.e
.e_offset
);
5503 #if SYMNMLEN != E_SYMNMLEN
5504 #error we need to cope with truncating or extending SYMNMLEN
5506 memcpy (ext
->e
.e_name
, in
->_n
._n_name
, SYMNMLEN
);
5510 H_PUT_32 (abfd
, in
->n_value
, ext
->e_value
);
5511 H_PUT_32 (abfd
, in
->n_scnum
, ext
->e_scnum
);
5513 H_PUT_16 (abfd
, in
->n_type
, ext
->e_type
);
5514 H_PUT_8 (abfd
, in
->n_sclass
, ext
->e_sclass
);
5515 H_PUT_8 (abfd
, in
->n_numaux
, ext
->e_numaux
);
5517 return SYMESZ_BIGOBJ
;
5521 coff_bigobj_swap_aux_in (bfd
*abfd
,
5529 AUXENT_BIGOBJ
*ext
= (AUXENT_BIGOBJ
*) ext1
;
5530 union internal_auxent
*in
= (union internal_auxent
*) in1
;
5532 /* Make sure that all fields in the aux structure are
5534 memset (in
, 0, sizeof * in
);
5541 memcpy (in
->x_file
.x_fname
, ext
->File
.Name
,
5542 numaux
* sizeof (AUXENT_BIGOBJ
));
5545 memcpy (in
->x_file
.x_fname
, ext
->File
.Name
, sizeof (ext
->File
.Name
));
5553 in
->x_scn
.x_scnlen
= H_GET_32 (abfd
, ext
->Section
.Length
);
5554 in
->x_scn
.x_nreloc
=
5555 H_GET_16 (abfd
, ext
->Section
.NumberOfRelocations
);
5556 in
->x_scn
.x_nlinno
=
5557 H_GET_16 (abfd
, ext
->Section
.NumberOfLinenumbers
);
5558 in
->x_scn
.x_checksum
= H_GET_32 (abfd
, ext
->Section
.Checksum
);
5559 in
->x_scn
.x_associated
= H_GET_16 (abfd
, ext
->Section
.Number
)
5560 | (H_GET_16 (abfd
, ext
->Section
.HighNumber
) << 16);
5561 in
->x_scn
.x_comdat
= H_GET_8 (abfd
, ext
->Section
.Selection
);
5567 in
->x_sym
.x_tagndx
.l
= H_GET_32 (abfd
, ext
->Sym
.WeakDefaultSymIndex
);
5568 /* Characteristics is ignored. */
5574 coff_bigobj_swap_aux_out (bfd
* abfd
,
5578 int indx ATTRIBUTE_UNUSED
,
5579 int numaux ATTRIBUTE_UNUSED
,
5582 union internal_auxent
* in
= (union internal_auxent
*) inp
;
5583 AUXENT_BIGOBJ
*ext
= (AUXENT_BIGOBJ
*) extp
;
5585 memset (ext
, 0, AUXESZ
);
5590 memcpy (ext
->File
.Name
, in
->x_file
.x_fname
, sizeof (ext
->File
.Name
));
5599 H_PUT_32 (abfd
, in
->x_scn
.x_scnlen
, ext
->Section
.Length
);
5600 H_PUT_16 (abfd
, in
->x_scn
.x_nreloc
,
5601 ext
->Section
.NumberOfRelocations
);
5602 H_PUT_16 (abfd
, in
->x_scn
.x_nlinno
,
5603 ext
->Section
.NumberOfLinenumbers
);
5604 H_PUT_32 (abfd
, in
->x_scn
.x_checksum
, ext
->Section
.Checksum
);
5605 H_PUT_16 (abfd
, in
->x_scn
.x_associated
& 0xffff,
5606 ext
->Section
.Number
);
5607 H_PUT_16 (abfd
, (in
->x_scn
.x_associated
>> 16),
5608 ext
->Section
.HighNumber
);
5609 H_PUT_8 (abfd
, in
->x_scn
.x_comdat
, ext
->Section
.Selection
);
5615 H_PUT_32 (abfd
, in
->x_sym
.x_tagndx
.l
, ext
->Sym
.WeakDefaultSymIndex
);
5616 H_PUT_32 (abfd
, 1, ext
->Sym
.WeakSearchType
);
5621 static bfd_coff_backend_data bigobj_swap_table
=
5623 coff_bigobj_swap_aux_in
, coff_bigobj_swap_sym_in
, coff_SWAP_lineno_in
,
5624 coff_bigobj_swap_aux_out
, coff_bigobj_swap_sym_out
,
5625 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5626 coff_bigobj_swap_filehdr_out
, coff_SWAP_aouthdr_out
,
5627 coff_SWAP_scnhdr_out
,
5628 FILHSZ_BIGOBJ
, AOUTSZ
, SCNHSZ
, SYMESZ_BIGOBJ
, AUXESZ_BIGOBJ
,
5629 RELSZ
, LINESZ
, FILNMLEN_BIGOBJ
,
5631 COFF_DEFAULT_LONG_SECTION_NAMES
,
5632 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5636 coff_bigobj_swap_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5637 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
5638 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5639 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5640 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5641 coff_classify_symbol
, coff_compute_section_file_positions
,
5642 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5643 coff_adjust_symndx
, coff_link_add_one_symbol
,
5644 coff_link_output_has_begun
, coff_final_link_postscript
,
5645 bfd_pe_print_pdata
/* huh */
5648 #endif /* COFF_WITH_PE_BIGOBJ */
5650 #ifndef coff_close_and_cleanup
5651 #define coff_close_and_cleanup _bfd_coff_close_and_cleanup
5654 #ifndef coff_bfd_free_cached_info
5655 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
5658 #ifndef coff_get_section_contents
5659 #define coff_get_section_contents _bfd_generic_get_section_contents
5662 #ifndef coff_bfd_copy_private_symbol_data
5663 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
5666 #ifndef coff_bfd_copy_private_header_data
5667 #define coff_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
5670 #ifndef coff_bfd_copy_private_section_data
5671 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
5674 #ifndef coff_bfd_copy_private_bfd_data
5675 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
5678 #ifndef coff_bfd_merge_private_bfd_data
5679 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
5682 #ifndef coff_bfd_set_private_flags
5683 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
5686 #ifndef coff_bfd_print_private_bfd_data
5687 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
5690 #ifndef coff_bfd_is_local_label_name
5691 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
5694 #ifndef coff_bfd_is_target_special_symbol
5695 #define coff_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false
5698 #ifndef coff_read_minisymbols
5699 #define coff_read_minisymbols _bfd_generic_read_minisymbols
5702 #ifndef coff_minisymbol_to_symbol
5703 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
5706 /* The reloc lookup routine must be supplied by each individual COFF
5708 #ifndef coff_bfd_reloc_type_lookup
5709 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5711 #ifndef coff_bfd_reloc_name_lookup
5712 #define coff_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5715 #ifndef coff_bfd_get_relocated_section_contents
5716 #define coff_bfd_get_relocated_section_contents \
5717 bfd_generic_get_relocated_section_contents
5720 #ifndef coff_bfd_relax_section
5721 #define coff_bfd_relax_section bfd_generic_relax_section
5724 #ifndef coff_bfd_gc_sections
5725 #define coff_bfd_gc_sections bfd_coff_gc_sections
5728 #ifndef coff_bfd_lookup_section_flags
5729 #define coff_bfd_lookup_section_flags bfd_generic_lookup_section_flags
5732 #ifndef coff_bfd_merge_sections
5733 #define coff_bfd_merge_sections bfd_generic_merge_sections
5736 #ifndef coff_bfd_is_group_section
5737 #define coff_bfd_is_group_section bfd_generic_is_group_section
5740 #ifndef coff_bfd_group_name
5741 #define coff_bfd_group_name bfd_coff_group_name
5744 #ifndef coff_bfd_discard_group
5745 #define coff_bfd_discard_group bfd_generic_discard_group
5748 #ifndef coff_section_already_linked
5749 #define coff_section_already_linked \
5750 _bfd_coff_section_already_linked
5753 #ifndef coff_bfd_define_common_symbol
5754 #define coff_bfd_define_common_symbol bfd_generic_define_common_symbol
5757 #ifndef coff_bfd_link_hide_symbol
5758 #define coff_bfd_link_hide_symbol _bfd_generic_link_hide_symbol
5761 #ifndef coff_bfd_define_start_stop
5762 #define coff_bfd_define_start_stop bfd_generic_define_start_stop
5765 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5766 const bfd_target VAR = \
5769 bfd_target_coff_flavour, \
5770 BFD_ENDIAN_BIG, /* Data byte order is big. */ \
5771 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5772 /* object flags */ \
5773 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5774 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5775 /* section flags */ \
5776 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5777 UNDER, /* Leading symbol underscore. */ \
5778 '/', /* AR_pad_char. */ \
5779 15, /* AR_max_namelen. */ \
5780 0, /* match priority. */ \
5782 /* Data conversion functions. */ \
5783 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5784 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5785 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5787 /* Header conversion functions. */ \
5788 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5789 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5790 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5792 { /* bfd_check_format. */ \
5793 _bfd_dummy_target, \
5795 bfd_generic_archive_p, \
5798 { /* bfd_set_format. */ \
5799 _bfd_bool_bfd_false_error, \
5801 _bfd_generic_mkarchive, \
5802 _bfd_bool_bfd_false_error \
5804 { /* bfd_write_contents. */ \
5805 _bfd_bool_bfd_false_error, \
5806 coff_write_object_contents, \
5807 _bfd_write_archive_contents, \
5808 _bfd_bool_bfd_false_error \
5811 BFD_JUMP_TABLE_GENERIC (coff), \
5812 BFD_JUMP_TABLE_COPY (coff), \
5813 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5814 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5815 BFD_JUMP_TABLE_SYMBOLS (coff), \
5816 BFD_JUMP_TABLE_RELOCS (coff), \
5817 BFD_JUMP_TABLE_WRITE (coff), \
5818 BFD_JUMP_TABLE_LINK (coff), \
5819 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5826 #define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5827 const bfd_target VAR = \
5830 bfd_target_coff_flavour, \
5831 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5832 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5833 /* object flags */ \
5834 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5835 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5836 /* section flags */ \
5837 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5838 UNDER, /* Leading symbol underscore. */ \
5839 '/', /* AR_pad_char. */ \
5840 15, /* AR_max_namelen. */ \
5841 0, /* match priority. */ \
5843 /* Data conversion functions. */ \
5844 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5845 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5846 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5848 /* Header conversion functions. */ \
5849 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5850 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5851 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5853 { /* bfd_check_format. */ \
5854 _bfd_dummy_target, \
5856 bfd_generic_archive_p, \
5859 { /* bfd_set_format. */ \
5860 _bfd_bool_bfd_false_error, \
5862 _bfd_generic_mkarchive, \
5863 _bfd_bool_bfd_false_error \
5865 { /* bfd_write_contents. */ \
5866 _bfd_bool_bfd_false_error, \
5867 coff_write_object_contents, \
5868 _bfd_write_archive_contents, \
5869 _bfd_bool_bfd_false_error \
5872 BFD_JUMP_TABLE_GENERIC (coff), \
5873 BFD_JUMP_TABLE_COPY (coff), \
5874 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5875 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5876 BFD_JUMP_TABLE_SYMBOLS (coff), \
5877 BFD_JUMP_TABLE_RELOCS (coff), \
5878 BFD_JUMP_TABLE_WRITE (coff), \
5879 BFD_JUMP_TABLE_LINK (coff), \
5880 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5887 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5888 const bfd_target VAR = \
5891 bfd_target_coff_flavour, \
5892 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5893 BFD_ENDIAN_LITTLE, /* Header byte order is little. */ \
5894 /* object flags */ \
5895 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5896 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5897 /* section flags */ \
5898 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5899 UNDER, /* Leading symbol underscore. */ \
5900 '/', /* AR_pad_char. */ \
5901 15, /* AR_max_namelen. */ \
5902 0, /* match priority. */ \
5904 /* Data conversion functions. */ \
5905 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5906 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5907 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5908 /* Header conversion functions. */ \
5909 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5910 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5911 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5913 { /* bfd_check_format. */ \
5914 _bfd_dummy_target, \
5916 bfd_generic_archive_p, \
5919 { /* bfd_set_format. */ \
5920 _bfd_bool_bfd_false_error, \
5922 _bfd_generic_mkarchive, \
5923 _bfd_bool_bfd_false_error \
5925 { /* bfd_write_contents. */ \
5926 _bfd_bool_bfd_false_error, \
5927 coff_write_object_contents, \
5928 _bfd_write_archive_contents, \
5929 _bfd_bool_bfd_false_error \
5932 BFD_JUMP_TABLE_GENERIC (coff), \
5933 BFD_JUMP_TABLE_COPY (coff), \
5934 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5935 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5936 BFD_JUMP_TABLE_SYMBOLS (coff), \
5937 BFD_JUMP_TABLE_RELOCS (coff), \
5938 BFD_JUMP_TABLE_WRITE (coff), \
5939 BFD_JUMP_TABLE_LINK (coff), \
5940 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \