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_z80n
<< 12:
2167 case bfd_mach_z80full
<< 12:
2168 case bfd_mach_r800
<< 12:
2169 case bfd_mach_gbz80
<< 12:
2170 case bfd_mach_z180
<< 12:
2171 case bfd_mach_ez80_z80
<< 12:
2172 case bfd_mach_ez80_adl
<< 12:
2173 machine
= ((unsigned)internal_f
->f_flags
& F_MACHMASK
) >> 12;
2182 arch
= bfd_arch_z8k
;
2183 switch (internal_f
->f_flags
& F_MACHMASK
)
2186 machine
= bfd_mach_z8001
;
2189 machine
= bfd_mach_z8002
;
2209 if (xcoff_data (abfd
)->cputype
!= -1)
2210 cputype
= xcoff_data (abfd
)->cputype
& 0xff;
2213 /* We did not get a value from the a.out header. If the
2214 file has not been stripped, we may be able to get the
2215 architecture information from the first symbol, if it
2216 is a .file symbol. */
2217 if (obj_raw_syment_count (abfd
) == 0)
2222 struct internal_syment sym
;
2223 bfd_size_type amt
= bfd_coff_symesz (abfd
);
2225 buf
= bfd_malloc (amt
);
2228 if (bfd_seek (abfd
, obj_sym_filepos (abfd
), SEEK_SET
) != 0
2229 || bfd_bread (buf
, amt
, abfd
) != amt
)
2234 bfd_coff_swap_sym_in (abfd
, buf
, & sym
);
2235 if (sym
.n_sclass
== C_FILE
)
2236 cputype
= sym
.n_type
& 0xff;
2243 /* FIXME: We don't handle all cases here. */
2248 arch
= bfd_xcoff_architecture (abfd
);
2249 machine
= bfd_xcoff_machine (abfd
);
2253 arch
= bfd_arch_powerpc
;
2254 machine
= bfd_mach_ppc_601
;
2256 case 2: /* 64 bit PowerPC */
2257 arch
= bfd_arch_powerpc
;
2258 machine
= bfd_mach_ppc_620
;
2261 arch
= bfd_arch_powerpc
;
2262 machine
= bfd_mach_ppc
;
2265 arch
= bfd_arch_rs6000
;
2266 machine
= bfd_mach_rs6k
;
2273 #ifdef SH_ARCH_MAGIC_BIG
2274 case SH_ARCH_MAGIC_BIG
:
2275 case SH_ARCH_MAGIC_LITTLE
:
2277 case SH_ARCH_MAGIC_WINCE
:
2283 #ifdef MIPS_ARCH_MAGIC_WINCE
2284 case MIPS_ARCH_MAGIC_WINCE
:
2285 arch
= bfd_arch_mips
;
2291 #ifdef LYNXCOFFMAGIC
2294 arch
= bfd_arch_sparc
;
2300 arch
= bfd_arch_tic30
;
2305 #ifdef TICOFF_TARGET_ARCH
2306 /* This TI COFF section should be used by all new TI COFF v0 targets. */
2308 arch
= TICOFF_TARGET_ARCH
;
2309 machine
= TICOFF_TARGET_MACHINE_GET (internal_f
->f_flags
);
2315 /* This TI COFF section should be used by all new TI COFF v1/2 targets. */
2316 /* TI COFF1 and COFF2 use the target_id field to specify which arch. */
2319 switch (internal_f
->f_target_id
)
2323 arch
= TICOFF_TARGET_ARCH
;
2324 machine
= TICOFF_TARGET_MACHINE_GET (internal_f
->f_flags
);
2328 arch
= bfd_arch_obscure
;
2330 (_("unrecognized TI COFF target id '0x%x'"),
2331 internal_f
->f_target_id
);
2339 arch
= bfd_arch_mcore
;
2343 default: /* Unreadable input file type. */
2344 arch
= bfd_arch_obscure
;
2348 bfd_default_set_arch_mach (abfd
, arch
, machine
);
2353 symname_in_debug_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2354 struct internal_syment
*sym ATTRIBUTE_UNUSED
)
2356 #ifdef SYMNAME_IN_DEBUG
2357 return SYMNAME_IN_DEBUG (sym
) != 0;
2366 #define FORCE_SYMNAMES_IN_STRINGS
2369 /* Handle the csect auxent of a C_EXT, C_AIX_WEAKEXT or C_HIDEXT symbol. */
2372 coff_pointerize_aux_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2373 combined_entry_type
*table_base
,
2374 combined_entry_type
*symbol
,
2375 unsigned int indaux
,
2376 combined_entry_type
*aux
)
2378 BFD_ASSERT (symbol
->is_sym
);
2379 int n_sclass
= symbol
->u
.syment
.n_sclass
;
2381 if (CSECT_SYM_P (n_sclass
)
2382 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2384 BFD_ASSERT (! aux
->is_sym
);
2385 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) == XTY_LD
)
2387 aux
->u
.auxent
.x_csect
.x_scnlen
.p
=
2388 table_base
+ aux
->u
.auxent
.x_csect
.x_scnlen
.l
;
2389 aux
->fix_scnlen
= 1;
2392 /* Return TRUE to indicate that the caller should not do any
2393 further work on this auxent. */
2397 /* Return FALSE to indicate that this auxent should be handled by
2403 #define coff_pointerize_aux_hook 0
2404 #endif /* ! RS6000COFF_C */
2406 /* Print an aux entry. This returns TRUE if it has printed it. */
2409 coff_print_aux (bfd
*abfd ATTRIBUTE_UNUSED
,
2410 FILE *file ATTRIBUTE_UNUSED
,
2411 combined_entry_type
*table_base ATTRIBUTE_UNUSED
,
2412 combined_entry_type
*symbol ATTRIBUTE_UNUSED
,
2413 combined_entry_type
*aux ATTRIBUTE_UNUSED
,
2414 unsigned int indaux ATTRIBUTE_UNUSED
)
2416 BFD_ASSERT (symbol
->is_sym
);
2417 BFD_ASSERT (! aux
->is_sym
);
2419 if (CSECT_SYM_P (symbol
->u
.syment
.n_sclass
)
2420 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2422 /* This is a csect entry. */
2423 fprintf (file
, "AUX ");
2424 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) != XTY_LD
)
2426 BFD_ASSERT (! aux
->fix_scnlen
);
2427 fprintf (file
, "val %5" BFD_VMA_FMT
"d",
2428 aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2432 fprintf (file
, "indx ");
2433 if (! aux
->fix_scnlen
)
2434 fprintf (file
, "%4" BFD_VMA_FMT
"d",
2435 aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2437 fprintf (file
, "%4ld",
2438 (long) (aux
->u
.auxent
.x_csect
.x_scnlen
.p
- table_base
));
2441 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2442 aux
->u
.auxent
.x_csect
.x_parmhash
,
2443 (unsigned int) aux
->u
.auxent
.x_csect
.x_snhash
,
2444 SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
),
2445 SMTYP_ALIGN (aux
->u
.auxent
.x_csect
.x_smtyp
),
2446 (unsigned int) aux
->u
.auxent
.x_csect
.x_smclas
,
2447 aux
->u
.auxent
.x_csect
.x_stab
,
2448 (unsigned int) aux
->u
.auxent
.x_csect
.x_snstab
);
2453 /* Return FALSE to indicate that no special action was taken. */
2461 To write relocations, the back end steps though the
2462 canonical relocation table and create an
2463 @code{internal_reloc}. The symbol index to use is removed from
2464 the @code{offset} field in the symbol table supplied. The
2465 address comes directly from the sum of the section base
2466 address and the relocation offset; the type is dug directly
2467 from the howto field. Then the @code{internal_reloc} is
2468 swapped into the shape of an @code{external_reloc} and written
2476 /* AUX's ld wants relocations to be sorted. */
2478 compare_arelent_ptr (const void * x
, const void * y
)
2480 const arelent
**a
= (const arelent
**) x
;
2481 const arelent
**b
= (const arelent
**) y
;
2482 bfd_size_type aadr
= (*a
)->address
;
2483 bfd_size_type badr
= (*b
)->address
;
2485 return (aadr
< badr
? -1 : badr
< aadr
? 1 : 0);
2488 #endif /* TARG_AUX */
2491 coff_write_relocs (bfd
* abfd
, int first_undef
)
2495 for (s
= abfd
->sections
; s
!= NULL
; s
= s
->next
)
2498 struct external_reloc dst
;
2505 /* Sort relocations before we write them out. */
2508 amt
= s
->reloc_count
;
2509 amt
*= sizeof (arelent
*);
2510 p
= bfd_malloc (amt
);
2513 if (s
->reloc_count
> 0)
2518 memcpy (p
, s
->orelocation
, (size_t) amt
);
2519 qsort (p
, s
->reloc_count
, sizeof (arelent
*), compare_arelent_ptr
);
2524 if (bfd_seek (abfd
, s
->rel_filepos
, SEEK_SET
) != 0)
2528 if (obj_pe (abfd
) && s
->reloc_count
>= 0xffff)
2530 /* Encode real count here as first reloc. */
2531 struct internal_reloc n
;
2533 memset (& n
, 0, sizeof (n
));
2534 /* Add one to count *this* reloc (grr). */
2535 n
.r_vaddr
= s
->reloc_count
+ 1;
2536 coff_swap_reloc_out (abfd
, &n
, &dst
);
2537 if (bfd_bwrite (& dst
, (bfd_size_type
) bfd_coff_relsz (abfd
),
2538 abfd
) != bfd_coff_relsz (abfd
))
2543 for (i
= 0; i
< s
->reloc_count
; i
++)
2545 struct internal_reloc n
;
2548 memset (& n
, 0, sizeof (n
));
2550 /* Now we've renumbered the symbols we know where the
2551 undefined symbols live in the table. Check the reloc
2552 entries for symbols who's output bfd isn't the right one.
2553 This is because the symbol was undefined (which means
2554 that all the pointers are never made to point to the same
2555 place). This is a bad thing,'cause the symbols attached
2556 to the output bfd are indexed, so that the relocation
2557 entries know which symbol index they point to. So we
2558 have to look up the output symbol here. */
2560 if (q
->sym_ptr_ptr
[0] != NULL
&& q
->sym_ptr_ptr
[0]->the_bfd
!= abfd
)
2563 const char *sname
= q
->sym_ptr_ptr
[0]->name
;
2564 asymbol
**outsyms
= abfd
->outsymbols
;
2566 for (j
= first_undef
; outsyms
[j
]; j
++)
2568 const char *intable
= outsyms
[j
]->name
;
2570 if (strcmp (intable
, sname
) == 0)
2572 /* Got a hit, so repoint the reloc. */
2573 q
->sym_ptr_ptr
= outsyms
+ j
;
2579 n
.r_vaddr
= q
->address
+ s
->vma
;
2582 /* The 29k const/consth reloc pair is a real kludge. The consth
2583 part doesn't have a symbol; it has an offset. So rebuilt
2585 if (q
->howto
->type
== R_IHCONST
)
2586 n
.r_symndx
= q
->addend
;
2589 if (q
->sym_ptr_ptr
&& q
->sym_ptr_ptr
[0] != NULL
)
2591 #ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P
2592 if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q
, s
))
2594 if ((*q
->sym_ptr_ptr
)->section
== bfd_abs_section_ptr
2595 && ((*q
->sym_ptr_ptr
)->flags
& BSF_SECTION_SYM
) != 0)
2597 /* This is a relocation relative to the absolute symbol. */
2601 n
.r_symndx
= get_index ((*(q
->sym_ptr_ptr
)));
2602 /* Check to see if the symbol reloc points to a symbol
2603 we don't have in our symbol table. */
2604 if (n
.r_symndx
> obj_conv_table_size (abfd
))
2606 bfd_set_error (bfd_error_bad_value
);
2607 /* xgettext:c-format */
2608 _bfd_error_handler (_("%pB: reloc against a non-existent"
2609 " symbol index: %ld"),
2616 #ifdef SWAP_OUT_RELOC_OFFSET
2617 n
.r_offset
= q
->addend
;
2621 /* Work out reloc type from what is required. */
2622 SELECT_RELOC (n
, q
->howto
);
2624 n
.r_type
= q
->howto
->type
;
2626 coff_swap_reloc_out (abfd
, &n
, &dst
);
2628 if (bfd_bwrite (& dst
, (bfd_size_type
) bfd_coff_relsz (abfd
),
2629 abfd
) != bfd_coff_relsz (abfd
))
2642 /* Set flags and magic number of a coff file from architecture and machine
2643 type. Result is TRUE if we can represent the arch&type, FALSE if not. */
2646 coff_set_flags (bfd
* abfd
,
2647 unsigned int *magicp ATTRIBUTE_UNUSED
,
2648 unsigned short *flagsp ATTRIBUTE_UNUSED
)
2650 switch (bfd_get_arch (abfd
))
2655 switch (bfd_get_mach (abfd
))
2657 case bfd_mach_z80strict
:
2660 case bfd_mach_z80full
:
2662 case bfd_mach_gbz80
:
2664 case bfd_mach_ez80_z80
:
2665 case bfd_mach_ez80_adl
:
2666 *flagsp
= bfd_get_mach (abfd
) << 12;
2678 switch (bfd_get_mach (abfd
))
2680 case bfd_mach_z8001
: *flagsp
= F_Z8001
; break;
2681 case bfd_mach_z8002
: *flagsp
= F_Z8002
; break;
2682 default: return FALSE
;
2688 case bfd_arch_tic30
:
2689 *magicp
= TIC30MAGIC
;
2693 #ifdef TICOFF_DEFAULT_MAGIC
2694 case TICOFF_TARGET_ARCH
:
2695 /* If there's no indication of which version we want, use the default. */
2697 *magicp
= TICOFF_DEFAULT_MAGIC
;
2700 /* We may want to output in a different COFF version. */
2701 switch (abfd
->xvec
->name
[4])
2704 *magicp
= TICOFF0MAGIC
;
2707 *magicp
= TICOFF1MAGIC
;
2710 *magicp
= TICOFF2MAGIC
;
2716 TICOFF_TARGET_MACHINE_SET (flagsp
, bfd_get_mach (abfd
));
2723 * magicp
= ARMPEMAGIC
;
2725 * magicp
= ARMMAGIC
;
2728 if (APCS_SET (abfd
))
2730 if (APCS_26_FLAG (abfd
))
2731 * flagsp
|= F_APCS26
;
2733 if (APCS_FLOAT_FLAG (abfd
))
2734 * flagsp
|= F_APCS_FLOAT
;
2736 if (PIC_FLAG (abfd
))
2739 if (INTERWORK_SET (abfd
) && INTERWORK_FLAG (abfd
))
2740 * flagsp
|= F_INTERWORK
;
2741 switch (bfd_get_mach (abfd
))
2743 case bfd_mach_arm_2
: * flagsp
|= F_ARM_2
; break;
2744 case bfd_mach_arm_2a
: * flagsp
|= F_ARM_2a
; break;
2745 case bfd_mach_arm_3
: * flagsp
|= F_ARM_3
; break;
2746 case bfd_mach_arm_3M
: * flagsp
|= F_ARM_3M
; break;
2747 case bfd_mach_arm_4
: * flagsp
|= F_ARM_4
; break;
2748 case bfd_mach_arm_4T
: * flagsp
|= F_ARM_4T
; break;
2749 case bfd_mach_arm_5
: * flagsp
|= F_ARM_5
; break;
2750 /* FIXME: we do not have F_ARM vaues greater than F_ARM_5.
2751 See also the comment in coff_set_arch_mach_hook(). */
2752 case bfd_mach_arm_5T
: * flagsp
|= F_ARM_5
; break;
2753 case bfd_mach_arm_5TE
: * flagsp
|= F_ARM_5
; break;
2754 case bfd_mach_arm_XScale
: * flagsp
|= F_ARM_5
; break;
2760 case bfd_arch_powerpc
:
2765 #if defined(I386MAGIC) || defined(AMD64MAGIC)
2767 #if defined(I386MAGIC)
2768 *magicp
= I386MAGIC
;
2771 /* Just overwrite the usual value if we're doing Lynx. */
2772 *magicp
= LYNXCOFFMAGIC
;
2774 #if defined AMD64MAGIC
2775 *magicp
= AMD64MAGIC
;
2782 *magicp
= IA64MAGIC
;
2786 #ifdef SH_ARCH_MAGIC_BIG
2788 #ifdef COFF_IMAGE_WITH_PE
2789 *magicp
= SH_ARCH_MAGIC_WINCE
;
2791 if (bfd_big_endian (abfd
))
2792 *magicp
= SH_ARCH_MAGIC_BIG
;
2794 *magicp
= SH_ARCH_MAGIC_LITTLE
;
2799 #ifdef MIPS_ARCH_MAGIC_WINCE
2801 *magicp
= MIPS_ARCH_MAGIC_WINCE
;
2806 case bfd_arch_sparc
:
2807 *magicp
= SPARCMAGIC
;
2809 /* Just overwrite the usual value if we're doing Lynx. */
2810 *magicp
= LYNXCOFFMAGIC
;
2816 case bfd_arch_rs6000
:
2818 case bfd_arch_powerpc
:
2820 BFD_ASSERT (bfd_get_flavour (abfd
) == bfd_target_xcoff_flavour
);
2821 *magicp
= bfd_xcoff_magic_number (abfd
);
2826 case bfd_arch_mcore
:
2827 * magicp
= MCOREMAGIC
;
2831 default: /* Unknown architecture. */
2832 /* Fall through to "return FALSE" below, to avoid
2833 "statement never reached" errors on the one below. */
2841 coff_set_arch_mach (bfd
* abfd
,
2842 enum bfd_architecture arch
,
2843 unsigned long machine
)
2846 unsigned short dummy2
;
2848 if (! bfd_default_set_arch_mach (abfd
, arch
, machine
))
2851 if (arch
!= bfd_arch_unknown
2852 && ! coff_set_flags (abfd
, &dummy1
, &dummy2
))
2853 return FALSE
; /* We can't represent this type. */
2855 return TRUE
; /* We're easy... */
2858 #ifdef COFF_IMAGE_WITH_PE
2860 /* This is used to sort sections by VMA, as required by PE image
2864 sort_by_secaddr (const void * arg1
, const void * arg2
)
2866 const asection
*a
= *(const asection
**) arg1
;
2867 const asection
*b
= *(const asection
**) arg2
;
2869 if (a
->vma
< b
->vma
)
2871 else if (a
->vma
> b
->vma
)
2877 #endif /* COFF_IMAGE_WITH_PE */
2879 /* Calculate the file position for each section. */
2881 #define ALIGN_SECTIONS_IN_FILE
2883 #undef ALIGN_SECTIONS_IN_FILE
2887 coff_compute_section_file_positions (bfd
* abfd
)
2890 file_ptr sofar
= bfd_coff_filhsz (abfd
);
2891 bfd_boolean align_adjust
;
2892 unsigned int target_index
;
2893 #ifdef ALIGN_SECTIONS_IN_FILE
2894 asection
*previous
= NULL
;
2898 #ifdef COFF_IMAGE_WITH_PE
2901 if (coff_data (abfd
)->link_info
2902 || (pe_data (abfd
) && pe_data (abfd
)->pe_opthdr
.FileAlignment
))
2904 page_size
= pe_data (abfd
)->pe_opthdr
.FileAlignment
;
2906 /* If no file alignment has been set, default to one.
2907 This repairs 'ld -r' for arm-wince-pe target. */
2911 /* PR 17512: file: 0ac816d3. */
2914 bfd_set_error (bfd_error_file_too_big
);
2916 /* xgettext:c-format */
2917 (_("%pB: page size is too large (0x%x)"), abfd
, page_size
);
2922 page_size
= PE_DEF_FILE_ALIGNMENT
;
2924 #ifdef COFF_PAGE_SIZE
2925 int page_size
= COFF_PAGE_SIZE
;
2930 /* On XCOFF, if we have symbols, set up the .debug section. */
2931 if (bfd_get_symcount (abfd
) > 0)
2934 bfd_size_type i
, symcount
;
2938 symcount
= bfd_get_symcount (abfd
);
2939 for (symp
= abfd
->outsymbols
, i
= 0; i
< symcount
; symp
++, i
++)
2941 coff_symbol_type
*cf
;
2943 cf
= coff_symbol_from (*symp
);
2945 && cf
->native
!= NULL
2946 && cf
->native
->is_sym
2947 && SYMNAME_IN_DEBUG (&cf
->native
->u
.syment
))
2951 len
= strlen (bfd_asymbol_name (*symp
));
2952 if (len
> SYMNMLEN
|| bfd_coff_force_symnames_in_strings (abfd
))
2953 sz
+= len
+ 1 + bfd_coff_debug_string_prefix_length (abfd
);
2960 dsec
= bfd_make_section_old_way (abfd
, DOT_DEBUG
);
2964 dsec
->flags
|= SEC_HAS_CONTENTS
;
2969 if (bfd_get_start_address (abfd
))
2970 /* A start address may have been added to the original file. In this
2971 case it will need an optional header to record it. */
2972 abfd
->flags
|= EXEC_P
;
2974 if (abfd
->flags
& EXEC_P
)
2975 sofar
+= bfd_coff_aoutsz (abfd
);
2977 else if (xcoff_data (abfd
)->full_aouthdr
)
2978 sofar
+= bfd_coff_aoutsz (abfd
);
2980 sofar
+= SMALL_AOUTSZ
;
2983 sofar
+= abfd
->section_count
* bfd_coff_scnhsz (abfd
);
2986 /* XCOFF handles overflows in the reloc and line number count fields
2987 by allocating a new section header to hold the correct counts. */
2988 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
2989 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
2990 sofar
+= bfd_coff_scnhsz (abfd
);
2993 #ifdef COFF_IMAGE_WITH_PE
2995 /* PE requires the sections to be in memory order when listed in
2996 the section headers. It also does not like empty loadable
2997 sections. The sections apparently do not have to be in the
2998 right order in the image file itself, but we do need to get the
2999 target_index values right. */
3002 asection
**section_list
;
3006 #ifdef COFF_PAGE_SIZE
3007 /* Clear D_PAGED if section alignment is smaller than
3009 if (pe_data (abfd
)->pe_opthdr
.SectionAlignment
< COFF_PAGE_SIZE
)
3010 abfd
->flags
&= ~D_PAGED
;
3014 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3017 /* We allocate an extra cell to simplify the final loop. */
3018 amt
= sizeof (struct asection
*) * (count
+ 1);
3019 section_list
= (asection
**) bfd_malloc (amt
);
3020 if (section_list
== NULL
)
3024 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3026 section_list
[i
] = current
;
3029 section_list
[i
] = NULL
;
3031 qsort (section_list
, count
, sizeof (asection
*), sort_by_secaddr
);
3033 /* Rethread the linked list into sorted order; at the same time,
3034 assign target_index values. */
3036 abfd
->sections
= NULL
;
3037 abfd
->section_last
= NULL
;
3038 for (i
= 0; i
< count
; i
++)
3040 current
= section_list
[i
];
3041 bfd_section_list_append (abfd
, current
);
3043 /* Later, if the section has zero size, we'll be throwing it
3044 away, so we don't want to number it now. Note that having
3045 a zero size and having real contents are different
3046 concepts: .bss has no contents, but (usually) non-zero
3048 if (current
->size
== 0)
3050 /* Discard. However, it still might have (valid) symbols
3051 in it, so arbitrarily set it to section 1 (indexing is
3052 1-based here; usually .text). __end__ and other
3053 contents of .endsection really have this happen.
3054 FIXME: This seems somewhat dubious. */
3055 current
->target_index
= 1;
3058 current
->target_index
= target_index
++;
3061 free (section_list
);
3063 #else /* ! COFF_IMAGE_WITH_PE */
3065 /* Set the target_index field. */
3067 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3068 current
->target_index
= target_index
++;
3070 #endif /* ! COFF_IMAGE_WITH_PE */
3072 if (target_index
>= bfd_coff_max_nscns (abfd
))
3074 bfd_set_error (bfd_error_file_too_big
);
3076 /* xgettext:c-format */
3077 (_("%pB: too many sections (%d)"), abfd
, target_index
);
3081 align_adjust
= FALSE
;
3082 for (current
= abfd
->sections
;
3084 current
= current
->next
)
3086 #ifdef COFF_IMAGE_WITH_PE
3087 /* With PE we have to pad each section to be a multiple of its
3088 page size too, and remember both sizes. */
3089 if (coff_section_data (abfd
, current
) == NULL
)
3091 bfd_size_type amt
= sizeof (struct coff_section_tdata
);
3093 current
->used_by_bfd
= bfd_zalloc (abfd
, amt
);
3094 if (current
->used_by_bfd
== NULL
)
3097 if (pei_section_data (abfd
, current
) == NULL
)
3099 bfd_size_type amt
= sizeof (struct pei_section_tdata
);
3101 coff_section_data (abfd
, current
)->tdata
= bfd_zalloc (abfd
, amt
);
3102 if (coff_section_data (abfd
, current
)->tdata
== NULL
)
3105 if (pei_section_data (abfd
, current
)->virt_size
== 0)
3106 pei_section_data (abfd
, current
)->virt_size
= current
->size
;
3109 /* Only deal with sections which have contents. */
3110 if (!(current
->flags
& SEC_HAS_CONTENTS
))
3113 current
->rawsize
= current
->size
;
3115 #ifdef COFF_IMAGE_WITH_PE
3116 /* Make sure we skip empty sections in a PE image. */
3117 if (current
->size
== 0)
3121 /* Align the sections in the file to the same boundary on
3122 which they are aligned in virtual memory. */
3123 #ifdef ALIGN_SECTIONS_IN_FILE
3124 if ((abfd
->flags
& EXEC_P
) != 0)
3126 /* Make sure this section is aligned on the right boundary - by
3127 padding the previous section up if necessary. */
3130 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
3133 /* Make sure the file offset and the vma of .text/.data are at the
3134 same page offset, so that the file can be mmap'ed without being
3135 relocated. Failing that, AIX is able to load and execute the
3136 program, but it will be silently relocated (possible as
3137 executables are PIE). But the relocation is slightly costly and
3138 complexify the use of addr2line or gdb. So better to avoid it,
3139 like does the native linker. Usually gnu ld makes sure that
3140 the vma of .text is the file offset so this issue shouldn't
3141 appear unless you are stripping such an executable.
3143 AIX loader checks the text section alignment of (vma - filepos),
3144 and the native linker doesn't try to align the text sections.
3147 0 .text 000054cc 10000128 10000128 00000128 2**5
3148 CONTENTS, ALLOC, LOAD, CODE
3151 if (!strcmp (current
->name
, _TEXT
)
3152 || !strcmp (current
->name
, _DATA
))
3154 bfd_vma align
= 4096;
3155 bfd_vma sofar_off
= sofar
% align
;
3156 bfd_vma vma_off
= current
->vma
% align
;
3158 if (vma_off
> sofar_off
)
3159 sofar
+= vma_off
- sofar_off
;
3160 else if (vma_off
< sofar_off
)
3161 sofar
+= align
+ vma_off
- sofar_off
;
3164 if (previous
!= NULL
)
3165 previous
->size
+= sofar
- old_sofar
;
3170 /* In demand paged files the low order bits of the file offset
3171 must match the low order bits of the virtual address. */
3172 #ifdef COFF_PAGE_SIZE
3173 if ((abfd
->flags
& D_PAGED
) != 0
3174 && (current
->flags
& SEC_ALLOC
) != 0)
3175 sofar
+= (current
->vma
- (bfd_vma
) sofar
) % page_size
;
3177 current
->filepos
= sofar
;
3179 #ifdef COFF_IMAGE_WITH_PE
3180 /* Set the padded size. */
3181 current
->size
= (current
->size
+ page_size
- 1) & -page_size
;
3184 sofar
+= current
->size
;
3186 #ifdef ALIGN_SECTIONS_IN_FILE
3187 /* Make sure that this section is of the right size too. */
3188 if ((abfd
->flags
& EXEC_P
) == 0)
3190 bfd_size_type old_size
;
3192 old_size
= current
->size
;
3193 current
->size
= BFD_ALIGN (current
->size
,
3194 1 << current
->alignment_power
);
3195 align_adjust
= current
->size
!= old_size
;
3196 sofar
+= current
->size
- old_size
;
3201 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
3202 align_adjust
= sofar
!= old_sofar
;
3203 current
->size
+= sofar
- old_sofar
;
3207 #ifdef COFF_IMAGE_WITH_PE
3208 /* For PE we need to make sure we pad out to the aligned
3209 size, in case the caller only writes out data to the
3211 if (pei_section_data (abfd
, current
)->virt_size
< current
->size
)
3212 align_adjust
= TRUE
;
3216 /* Force .lib sections to start at zero. The vma is then
3217 incremented in coff_set_section_contents. This is right for
3219 if (strcmp (current
->name
, _LIB
) == 0)
3220 bfd_set_section_vma (current
, 0);
3223 #ifdef ALIGN_SECTIONS_IN_FILE
3228 /* It is now safe to write to the output file. If we needed an
3229 alignment adjustment for the last section, then make sure that
3230 there is a byte at offset sofar. If there are no symbols and no
3231 relocs, then nothing follows the last section. If we don't force
3232 the last byte out, then the file may appear to be truncated. */
3238 if (bfd_seek (abfd
, sofar
- 1, SEEK_SET
) != 0
3239 || bfd_bwrite (&b
, (bfd_size_type
) 1, abfd
) != 1)
3243 /* Make sure the relocations are aligned. We don't need to make
3244 sure that this byte exists, because it will only matter if there
3245 really are relocs. */
3246 sofar
= BFD_ALIGN (sofar
, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER
);
3248 obj_relocbase (abfd
) = sofar
;
3249 abfd
->output_has_begun
= TRUE
;
3254 #ifdef COFF_IMAGE_WITH_PE
3256 static unsigned int pelength
;
3257 static unsigned int peheader
;
3260 coff_read_word (bfd
*abfd
, unsigned int *value
)
3265 status
= bfd_bread (b
, (bfd_size_type
) 2, abfd
);
3273 *value
= (unsigned int) b
[0];
3275 *value
= (unsigned int) (b
[0] + (b
[1] << 8));
3277 pelength
+= (unsigned int) status
;
3283 coff_compute_checksum (bfd
*abfd
)
3285 bfd_boolean more_data
;
3292 filepos
= (file_ptr
) 0;
3296 if (bfd_seek (abfd
, filepos
, SEEK_SET
) != 0)
3299 more_data
= coff_read_word (abfd
, &value
);
3301 total
= 0xffff & (total
+ (total
>> 0x10));
3306 return (0xffff & (total
+ (total
>> 0x10)));
3310 coff_apply_checksum (bfd
*abfd
)
3312 unsigned int computed
;
3313 unsigned int checksum
= 0;
3315 if (bfd_seek (abfd
, 0x3c, SEEK_SET
) != 0)
3318 if (!coff_read_word (abfd
, &peheader
))
3321 if (bfd_seek (abfd
, peheader
+ 0x58, SEEK_SET
) != 0)
3325 bfd_bwrite (&checksum
, (bfd_size_type
) 4, abfd
);
3327 if (bfd_seek (abfd
, peheader
, SEEK_SET
) != 0)
3330 computed
= coff_compute_checksum (abfd
);
3332 checksum
= computed
+ pelength
;
3334 if (bfd_seek (abfd
, peheader
+ 0x58, SEEK_SET
) != 0)
3337 bfd_bwrite (&checksum
, (bfd_size_type
) 4, abfd
);
3342 #endif /* COFF_IMAGE_WITH_PE */
3345 coff_write_object_contents (bfd
* abfd
)
3348 bfd_boolean hasrelocs
= FALSE
;
3349 bfd_boolean haslinno
= FALSE
;
3350 #ifdef COFF_IMAGE_WITH_PE
3351 bfd_boolean hasdebug
= FALSE
;
3354 file_ptr reloc_base
;
3355 file_ptr lineno_base
;
3357 unsigned long reloc_size
= 0, reloc_count
= 0;
3358 unsigned long lnno_size
= 0;
3359 bfd_boolean long_section_names
;
3360 asection
*text_sec
= NULL
;
3361 asection
*data_sec
= NULL
;
3362 asection
*bss_sec
= NULL
;
3363 struct internal_filehdr internal_f
;
3364 struct internal_aouthdr internal_a
;
3365 #ifdef COFF_LONG_SECTION_NAMES
3366 size_t string_size
= STRING_SIZE_SIZE
;
3369 bfd_set_error (bfd_error_system_call
);
3371 /* Make a pass through the symbol table to count line number entries and
3372 put them into the correct asections. */
3373 lnno_size
= coff_count_linenumbers (abfd
) * bfd_coff_linesz (abfd
);
3375 if (! abfd
->output_has_begun
)
3377 if (! coff_compute_section_file_positions (abfd
))
3381 reloc_base
= obj_relocbase (abfd
);
3383 /* Work out the size of the reloc and linno areas. */
3385 for (current
= abfd
->sections
; current
!= NULL
; current
=
3389 /* We store the actual reloc count in the first reloc's addr. */
3390 if (obj_pe (abfd
) && current
->reloc_count
>= 0xffff)
3393 reloc_count
+= current
->reloc_count
;
3396 reloc_size
= reloc_count
* bfd_coff_relsz (abfd
);
3398 lineno_base
= reloc_base
+ reloc_size
;
3399 sym_base
= lineno_base
+ lnno_size
;
3401 /* Indicate in each section->line_filepos its actual file address. */
3402 for (current
= abfd
->sections
; current
!= NULL
; current
=
3405 if (current
->lineno_count
)
3407 current
->line_filepos
= lineno_base
;
3408 current
->moving_line_filepos
= lineno_base
;
3409 lineno_base
+= current
->lineno_count
* bfd_coff_linesz (abfd
);
3412 current
->line_filepos
= 0;
3414 if (current
->reloc_count
)
3416 current
->rel_filepos
= reloc_base
;
3417 reloc_base
+= current
->reloc_count
* bfd_coff_relsz (abfd
);
3419 /* Extra reloc to hold real count. */
3420 if (obj_pe (abfd
) && current
->reloc_count
>= 0xffff)
3421 reloc_base
+= bfd_coff_relsz (abfd
);
3425 current
->rel_filepos
= 0;
3428 /* Write section headers to the file. */
3429 internal_f
.f_nscns
= 0;
3431 if ((abfd
->flags
& EXEC_P
) != 0)
3432 scn_base
= bfd_coff_filhsz (abfd
) + bfd_coff_aoutsz (abfd
);
3435 scn_base
= bfd_coff_filhsz (abfd
);
3438 if (xcoff_data (abfd
)->full_aouthdr
)
3439 scn_base
+= bfd_coff_aoutsz (abfd
);
3441 scn_base
+= SMALL_AOUTSZ
;
3446 if (bfd_seek (abfd
, scn_base
, SEEK_SET
) != 0)
3449 long_section_names
= FALSE
;
3450 for (current
= abfd
->sections
;
3452 current
= current
->next
)
3454 struct internal_scnhdr section
;
3455 #ifdef COFF_IMAGE_WITH_PE
3456 bfd_boolean is_reloc_section
= FALSE
;
3458 if (strcmp (current
->name
, DOT_RELOC
) == 0)
3460 is_reloc_section
= TRUE
;
3462 pe_data (abfd
)->has_reloc_section
= 1;
3466 internal_f
.f_nscns
++;
3468 strncpy (section
.s_name
, current
->name
, SCNNMLEN
);
3470 #ifdef COFF_LONG_SECTION_NAMES
3471 /* Handle long section names as in PE. This must be compatible
3472 with the code in coff_write_symbols and _bfd_coff_final_link. */
3473 if (bfd_coff_long_section_names (abfd
))
3477 len
= strlen (current
->name
);
3480 /* The s_name field is defined to be NUL-padded but need not be
3481 NUL-terminated. We use a temporary buffer so that we can still
3482 sprintf all eight chars without splatting a terminating NUL
3483 over the first byte of the following member (s_paddr). */
3484 /* PR 21096: The +20 is to stop a bogus warning from gcc7 about
3485 a possible buffer overflow. */
3486 char s_name_buf
[SCNNMLEN
+ 1 + 20];
3488 /* An inherent limitation of the /nnnnnnn notation used to indicate
3489 the offset of the long name in the string table is that we
3490 cannot address entries beyone the ten million byte boundary. */
3491 if (string_size
>= 10000000)
3493 bfd_set_error (bfd_error_file_too_big
);
3495 /* xgettext:c-format */
3496 (_("%pB: section %pA: string table overflow at offset %ld"),
3497 abfd
, current
, (unsigned long) string_size
);
3501 /* We do not need to use snprintf here as we have already verfied
3502 that string_size is not too big, plus we have an overlarge
3503 buffer, just in case. */
3504 sprintf (s_name_buf
, "/%lu", (unsigned long) string_size
);
3505 /* Then strncpy takes care of any padding for us. */
3506 strncpy (section
.s_name
, s_name_buf
, SCNNMLEN
);
3507 string_size
+= len
+ 1;
3508 long_section_names
= TRUE
;
3514 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3515 Ian Taylor <ian@cygnus.com>. */
3516 if (strcmp (current
->name
, _LIB
) == 0)
3517 section
.s_vaddr
= 0;
3520 section
.s_vaddr
= current
->vma
;
3521 section
.s_paddr
= current
->lma
;
3522 section
.s_size
= current
->size
;
3523 #ifdef coff_get_section_load_page
3524 section
.s_page
= coff_get_section_load_page (current
);
3530 section
.s_paddr
= 0;
3532 #ifdef COFF_IMAGE_WITH_PE
3533 /* Reminder: s_paddr holds the virtual size of the section. */
3534 if (coff_section_data (abfd
, current
) != NULL
3535 && pei_section_data (abfd
, current
) != NULL
)
3536 section
.s_paddr
= pei_section_data (abfd
, current
)->virt_size
;
3538 section
.s_paddr
= 0;
3541 /* If this section has no size or is unloadable then the scnptr
3543 if (current
->size
== 0
3544 || (current
->flags
& (SEC_LOAD
| SEC_HAS_CONTENTS
)) == 0)
3545 section
.s_scnptr
= 0;
3547 section
.s_scnptr
= current
->filepos
;
3549 section
.s_relptr
= current
->rel_filepos
;
3550 section
.s_lnnoptr
= current
->line_filepos
;
3551 section
.s_nreloc
= current
->reloc_count
;
3552 section
.s_nlnno
= current
->lineno_count
;
3553 #ifndef COFF_IMAGE_WITH_PE
3554 /* In PEI, relocs come in the .reloc section. */
3555 if (current
->reloc_count
!= 0)
3558 if (current
->lineno_count
!= 0)
3560 #ifdef COFF_IMAGE_WITH_PE
3561 if ((current
->flags
& SEC_DEBUGGING
) != 0
3562 && ! is_reloc_section
)
3568 /* Indicate the use of an XCOFF overflow section header. */
3569 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3571 section
.s_nreloc
= 0xffff;
3572 section
.s_nlnno
= 0xffff;
3577 section
.s_flags
= sec_to_styp_flags (current
->name
, current
->flags
);
3579 if (!strcmp (current
->name
, _TEXT
))
3581 else if (!strcmp (current
->name
, _DATA
))
3583 else if (!strcmp (current
->name
, _BSS
))
3586 #ifdef COFF_ENCODE_ALIGNMENT
3587 COFF_ENCODE_ALIGNMENT(section
, current
->alignment_power
);
3588 if ((unsigned int)COFF_DECODE_ALIGNMENT(section
.s_flags
)
3589 != current
->alignment_power
)
3591 bfd_boolean warn
= coff_data (abfd
)->link_info
3592 && !bfd_link_relocatable (coff_data (abfd
)->link_info
);
3595 /* xgettext:c-format */
3596 (_("%pB:%s section %s: alignment 2**%u not representable"),
3597 abfd
, warn
? " warning:" : "", current
->name
,
3598 current
->alignment_power
);
3601 bfd_set_error (bfd_error_nonrepresentable_section
);
3607 #ifdef COFF_IMAGE_WITH_PE
3608 /* Suppress output of the sections if they are null. ld
3609 includes the bss and data sections even if there is no size
3610 assigned to them. NT loader doesn't like it if these section
3611 headers are included if the sections themselves are not
3612 needed. See also coff_compute_section_file_positions. */
3613 if (section
.s_size
== 0)
3614 internal_f
.f_nscns
--;
3619 bfd_size_type amt
= bfd_coff_scnhsz (abfd
);
3621 if (coff_swap_scnhdr_out (abfd
, §ion
, &buff
) == 0
3622 || bfd_bwrite (& buff
, amt
, abfd
) != amt
)
3627 /* PE stores COMDAT section information in the symbol table. If
3628 this section is supposed to have some COMDAT info, track down
3629 the symbol in the symbol table and modify it. */
3630 if ((current
->flags
& SEC_LINK_ONCE
) != 0)
3632 unsigned int i
, count
;
3634 coff_symbol_type
*csym
= NULL
;
3638 count
= bfd_get_symcount (abfd
);
3639 for (i
= 0, psym
= abfd
->outsymbols
; i
< count
; i
++, psym
++)
3641 if ((*psym
)->section
!= current
)
3644 /* Remember the location of the first symbol in this
3646 if (psymsec
== NULL
)
3649 /* See if this is the section symbol. */
3650 if (strcmp ((*psym
)->name
, current
->name
) == 0)
3652 csym
= coff_symbol_from (*psym
);
3654 || csym
->native
== NULL
3655 || ! csym
->native
->is_sym
3656 || csym
->native
->u
.syment
.n_numaux
< 1
3657 || csym
->native
->u
.syment
.n_sclass
!= C_STAT
3658 || csym
->native
->u
.syment
.n_type
!= T_NULL
)
3661 /* Here *PSYM is the section symbol for CURRENT. */
3668 Note that we might not if we're converting the file from
3669 some other object file format. */
3672 combined_entry_type
*aux
;
3674 /* We don't touch the x_checksum field. The
3675 x_associated field is not currently supported. */
3677 aux
= csym
->native
+ 1;
3678 BFD_ASSERT (! aux
->is_sym
);
3679 switch (current
->flags
& SEC_LINK_DUPLICATES
)
3681 case SEC_LINK_DUPLICATES_DISCARD
:
3682 aux
->u
.auxent
.x_scn
.x_comdat
= IMAGE_COMDAT_SELECT_ANY
;
3685 case SEC_LINK_DUPLICATES_ONE_ONLY
:
3686 aux
->u
.auxent
.x_scn
.x_comdat
=
3687 IMAGE_COMDAT_SELECT_NODUPLICATES
;
3690 case SEC_LINK_DUPLICATES_SAME_SIZE
:
3691 aux
->u
.auxent
.x_scn
.x_comdat
=
3692 IMAGE_COMDAT_SELECT_SAME_SIZE
;
3695 case SEC_LINK_DUPLICATES_SAME_CONTENTS
:
3696 aux
->u
.auxent
.x_scn
.x_comdat
=
3697 IMAGE_COMDAT_SELECT_EXACT_MATCH
;
3701 /* The COMDAT symbol must be the first symbol from this
3702 section in the symbol table. In order to make this
3703 work, we move the COMDAT symbol before the first
3704 symbol we found in the search above. It's OK to
3705 rearrange the symbol table at this point, because
3706 coff_renumber_symbols is going to rearrange it
3707 further and fix up all the aux entries. */
3708 if (psym
!= psymsec
)
3714 for (pcopy
= psym
; pcopy
> psymsec
; pcopy
--)
3715 pcopy
[0] = pcopy
[-1];
3720 #endif /* COFF_WITH_PE */
3725 /* XCOFF handles overflows in the reloc and line number count fields
3726 by creating a new section header to hold the correct values. */
3727 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3729 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3731 struct internal_scnhdr scnhdr
;
3735 internal_f
.f_nscns
++;
3736 memcpy (scnhdr
.s_name
, ".ovrflo", 8);
3737 scnhdr
.s_paddr
= current
->reloc_count
;
3738 scnhdr
.s_vaddr
= current
->lineno_count
;
3740 scnhdr
.s_scnptr
= 0;
3741 scnhdr
.s_relptr
= current
->rel_filepos
;
3742 scnhdr
.s_lnnoptr
= current
->line_filepos
;
3743 scnhdr
.s_nreloc
= current
->target_index
;
3744 scnhdr
.s_nlnno
= current
->target_index
;
3745 scnhdr
.s_flags
= STYP_OVRFLO
;
3746 amt
= bfd_coff_scnhsz (abfd
);
3747 if (coff_swap_scnhdr_out (abfd
, &scnhdr
, &buff
) == 0
3748 || bfd_bwrite (& buff
, amt
, abfd
) != amt
)
3755 /* OK, now set up the filehdr... */
3757 /* Don't include the internal abs section in the section count */
3759 /* We will NOT put a fucking timestamp in the header here. Every time you
3760 put it back, I will come in and take it out again. I'm sorry. This
3761 field does not belong here. We fill it with a 0 so it compares the
3762 same but is not a reasonable time. -- gnu@cygnus.com */
3763 internal_f
.f_timdat
= 0;
3764 internal_f
.f_flags
= 0;
3766 if (abfd
->flags
& EXEC_P
)
3767 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3770 internal_f
.f_opthdr
= 0;
3773 if (xcoff_data (abfd
)->full_aouthdr
)
3774 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3776 internal_f
.f_opthdr
= SMALL_AOUTSZ
;
3782 internal_f
.f_flags
|= F_RELFLG
;
3784 internal_f
.f_flags
|= F_LNNO
;
3785 if (abfd
->flags
& EXEC_P
)
3786 internal_f
.f_flags
|= F_EXEC
;
3787 #ifdef COFF_IMAGE_WITH_PE
3789 internal_f
.f_flags
|= IMAGE_FILE_DEBUG_STRIPPED
;
3790 if (pe_data (abfd
)->real_flags
& IMAGE_FILE_LARGE_ADDRESS_AWARE
)
3791 internal_f
.f_flags
|= IMAGE_FILE_LARGE_ADDRESS_AWARE
;
3794 #ifndef COFF_WITH_pex64
3796 internal_f
.f_flags
|= IMAGE_FILE_32BIT_MACHINE
;
3798 if (bfd_little_endian (abfd
))
3799 internal_f
.f_flags
|= F_AR32WR
;
3801 internal_f
.f_flags
|= F_AR32W
;
3806 /* Target id is used in TI COFF v1 and later; COFF0 won't use this field,
3807 but it doesn't hurt to set it internally. */
3808 internal_f
.f_target_id
= TI_TARGET_ID
;
3811 /* FIXME, should do something about the other byte orders and
3815 if ((abfd
->flags
& DYNAMIC
) != 0)
3816 internal_f
.f_flags
|= F_SHROBJ
;
3817 if (bfd_get_section_by_name (abfd
, _LOADER
) != NULL
)
3818 internal_f
.f_flags
|= F_DYNLOAD
;
3821 memset (&internal_a
, 0, sizeof internal_a
);
3823 /* Set up architecture-dependent stuff. */
3825 unsigned int magic
= 0;
3826 unsigned short flags
= 0;
3828 coff_set_flags (abfd
, &magic
, &flags
);
3829 internal_f
.f_magic
= magic
;
3830 internal_f
.f_flags
|= flags
;
3831 /* ...and the "opt"hdr... */
3833 #ifdef TICOFF_AOUT_MAGIC
3834 internal_a
.magic
= TICOFF_AOUT_MAGIC
;
3835 #define __A_MAGIC_SET__
3839 #define __A_MAGIC_SET__
3840 internal_a
.magic
= ZMAGIC
;
3844 #define __A_MAGIC_SET__
3845 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
3848 #if defined MCORE_PE
3849 #define __A_MAGIC_SET__
3850 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
3854 #define __A_MAGIC_SET__
3856 internal_a
.magic
= LYNXCOFFMAGIC
;
3858 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR64_MAGIC
;
3860 internal_a
.magic
= ZMAGIC
;
3865 #define __A_MAGIC_SET__
3866 internal_a
.magic
= PE32PMAGIC
;
3870 #define __A_MAGIC_SET__
3872 internal_a
.magic
= LYNXCOFFMAGIC
;
3877 #define __A_MAGIC_SET__
3878 internal_a
.magic
= (abfd
->flags
& D_PAGED
) ? RS6K_AOUTHDR_ZMAGIC
:
3879 (abfd
->flags
& WP_TEXT
) ? RS6K_AOUTHDR_NMAGIC
:
3880 RS6K_AOUTHDR_OMAGIC
;
3883 #if defined(SH) && defined(COFF_WITH_PE)
3884 #define __A_MAGIC_SET__
3885 internal_a
.magic
= SH_PE_MAGIC
;
3888 #if defined(MIPS) && defined(COFF_WITH_PE)
3889 #define __A_MAGIC_SET__
3890 internal_a
.magic
= MIPS_PE_MAGIC
;
3893 #ifndef __A_MAGIC_SET__
3894 #include "Your aouthdr magic number is not being set!"
3896 #undef __A_MAGIC_SET__
3900 /* FIXME: Does anybody ever set this to another value? */
3901 internal_a
.vstamp
= 0;
3903 /* Now should write relocs, strings, syms. */
3904 obj_sym_filepos (abfd
) = sym_base
;
3906 if (bfd_get_symcount (abfd
) != 0)
3910 if (!coff_renumber_symbols (abfd
, &firstundef
))
3912 coff_mangle_symbols (abfd
);
3913 if (! coff_write_symbols (abfd
))
3915 if (! coff_write_linenumbers (abfd
))
3917 if (! coff_write_relocs (abfd
, firstundef
))
3920 #ifdef COFF_LONG_SECTION_NAMES
3921 else if (long_section_names
&& ! obj_coff_strings_written (abfd
))
3923 /* If we have long section names we have to write out the string
3924 table even if there are no symbols. */
3925 if (! coff_write_symbols (abfd
))
3929 #ifdef COFF_IMAGE_WITH_PE
3931 else if ((abfd
->flags
& EXEC_P
) != 0)
3935 /* PowerPC PE appears to require that all executable files be
3936 rounded up to the page size. */
3939 (file_ptr
) BFD_ALIGN (sym_base
, COFF_PAGE_SIZE
) - 1,
3941 || bfd_bwrite (&b
, (bfd_size_type
) 1, abfd
) != 1)
3947 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
3948 backend linker, and obj_raw_syment_count is not valid until after
3949 coff_write_symbols is called. */
3950 if (obj_raw_syment_count (abfd
) != 0)
3952 internal_f
.f_symptr
= sym_base
;
3954 /* AIX appears to require that F_RELFLG not be set if there are
3955 local symbols but no relocations. */
3956 internal_f
.f_flags
&=~ F_RELFLG
;
3961 if (long_section_names
)
3962 internal_f
.f_symptr
= sym_base
;
3964 internal_f
.f_symptr
= 0;
3965 internal_f
.f_flags
|= F_LSYMS
;
3970 internal_a
.tsize
= text_sec
->size
;
3971 internal_a
.text_start
= internal_a
.tsize
? text_sec
->vma
: 0;
3975 internal_a
.dsize
= data_sec
->size
;
3976 internal_a
.data_start
= internal_a
.dsize
? data_sec
->vma
: 0;
3980 internal_a
.bsize
= bss_sec
->size
;
3981 if (internal_a
.bsize
&& bss_sec
->vma
< internal_a
.data_start
)
3982 internal_a
.data_start
= bss_sec
->vma
;
3985 internal_a
.entry
= bfd_get_start_address (abfd
);
3986 internal_f
.f_nsyms
= obj_raw_syment_count (abfd
);
3989 if (xcoff_data (abfd
)->full_aouthdr
)
3992 asection
*loader_sec
;
3994 internal_a
.vstamp
= 1;
3996 internal_a
.o_snentry
= xcoff_data (abfd
)->snentry
;
3997 if (internal_a
.o_snentry
== 0)
3998 internal_a
.entry
= (bfd_vma
) -1;
4000 if (text_sec
!= NULL
)
4002 internal_a
.o_sntext
= text_sec
->target_index
;
4003 internal_a
.o_algntext
= bfd_section_alignment (text_sec
);
4007 internal_a
.o_sntext
= 0;
4008 internal_a
.o_algntext
= 0;
4010 if (data_sec
!= NULL
)
4012 internal_a
.o_sndata
= data_sec
->target_index
;
4013 internal_a
.o_algndata
= bfd_section_alignment (data_sec
);
4017 internal_a
.o_sndata
= 0;
4018 internal_a
.o_algndata
= 0;
4020 loader_sec
= bfd_get_section_by_name (abfd
, ".loader");
4021 if (loader_sec
!= NULL
)
4022 internal_a
.o_snloader
= loader_sec
->target_index
;
4024 internal_a
.o_snloader
= 0;
4025 if (bss_sec
!= NULL
)
4026 internal_a
.o_snbss
= bss_sec
->target_index
;
4028 internal_a
.o_snbss
= 0;
4030 toc
= xcoff_data (abfd
)->toc
;
4031 internal_a
.o_toc
= toc
;
4032 internal_a
.o_sntoc
= xcoff_data (abfd
)->sntoc
;
4034 internal_a
.o_modtype
= xcoff_data (abfd
)->modtype
;
4035 if (xcoff_data (abfd
)->cputype
!= -1)
4036 internal_a
.o_cputype
= xcoff_data (abfd
)->cputype
;
4039 switch (bfd_get_arch (abfd
))
4041 case bfd_arch_rs6000
:
4042 internal_a
.o_cputype
= 4;
4044 case bfd_arch_powerpc
:
4045 if (bfd_get_mach (abfd
) == bfd_mach_ppc
)
4046 internal_a
.o_cputype
= 3;
4048 internal_a
.o_cputype
= 1;
4054 internal_a
.o_maxstack
= xcoff_data (abfd
)->maxstack
;
4055 internal_a
.o_maxdata
= xcoff_data (abfd
)->maxdata
;
4061 /* After object contents are finalized so we can compute a reasonable hash,
4062 but before header is written so we can update it to point to debug directory. */
4063 struct pe_tdata
*pe
= pe_data (abfd
);
4065 if (pe
->build_id
.after_write_object_contents
!= NULL
)
4066 (*pe
->build_id
.after_write_object_contents
) (abfd
);
4070 /* Now write header. */
4071 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
) != 0)
4076 bfd_size_type amount
= bfd_coff_filhsz (abfd
);
4078 buff
= (char *) bfd_malloc (amount
);
4082 bfd_coff_swap_filehdr_out (abfd
, & internal_f
, buff
);
4083 amount
= bfd_bwrite (buff
, amount
, abfd
);
4087 if (amount
!= bfd_coff_filhsz (abfd
))
4091 if (abfd
->flags
& EXEC_P
)
4093 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
4094 include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */
4096 bfd_size_type amount
= bfd_coff_aoutsz (abfd
);
4098 buff
= (char *) bfd_malloc (amount
);
4102 coff_swap_aouthdr_out (abfd
, & internal_a
, buff
);
4103 amount
= bfd_bwrite (buff
, amount
, abfd
);
4107 if (amount
!= bfd_coff_aoutsz (abfd
))
4110 #ifdef COFF_IMAGE_WITH_PE
4111 if (! coff_apply_checksum (abfd
))
4121 /* XCOFF seems to always write at least a small a.out header. */
4122 coff_swap_aouthdr_out (abfd
, & internal_a
, & buff
);
4123 if (xcoff_data (abfd
)->full_aouthdr
)
4124 size
= bfd_coff_aoutsz (abfd
);
4126 size
= SMALL_AOUTSZ
;
4127 if (bfd_bwrite (& buff
, (bfd_size_type
) size
, abfd
) != size
)
4136 coff_set_section_contents (bfd
* abfd
,
4138 const void * location
,
4140 bfd_size_type count
)
4142 if (! abfd
->output_has_begun
) /* Set by bfd.c handler. */
4144 if (! coff_compute_section_file_positions (abfd
))
4148 #if defined(_LIB) && !defined(TARG_AUX)
4149 /* The physical address field of a .lib section is used to hold the
4150 number of shared libraries in the section. This code counts the
4151 number of sections being written, and increments the lma field
4154 I have found no documentation on the contents of this section.
4155 Experimentation indicates that the section contains zero or more
4156 records, each of which has the following structure:
4158 - a (four byte) word holding the length of this record, in words,
4159 - a word that always seems to be set to "2",
4160 - the path to a shared library, null-terminated and then padded
4161 to a whole word boundary.
4163 bfd_assert calls have been added to alert if an attempt is made
4164 to write a section which doesn't follow these assumptions. The
4165 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
4166 <robertl@arnet.com> (Thanks!).
4168 Gvran Uddeborg <gvran@uddeborg.pp.se>. */
4169 if (strcmp (section
->name
, _LIB
) == 0)
4171 bfd_byte
*rec
, *recend
;
4173 rec
= (bfd_byte
*) location
;
4174 recend
= rec
+ count
;
4175 while (rec
< recend
)
4178 rec
+= bfd_get_32 (abfd
, rec
) * 4;
4181 BFD_ASSERT (rec
== recend
);
4185 /* Don't write out bss sections - one way to do this is to
4186 see if the filepos has not been set. */
4187 if (section
->filepos
== 0)
4190 if (bfd_seek (abfd
, section
->filepos
+ offset
, SEEK_SET
) != 0)
4196 return bfd_bwrite (location
, count
, abfd
) == count
;
4200 buy_and_read (bfd
*abfd
, file_ptr where
,
4201 bfd_size_type nmemb
, bfd_size_type size
)
4203 void *area
= bfd_alloc2 (abfd
, nmemb
, size
);
4208 if (bfd_seek (abfd
, where
, SEEK_SET
) != 0
4209 || bfd_bread (area
, size
, abfd
) != size
)
4218 Creating the linenumber table is done by reading in the entire
4219 coff linenumber table, and creating another table for internal use.
4221 A coff linenumber table is structured so that each function
4222 is marked as having a line number of 0. Each line within the
4223 function is an offset from the first line in the function. The
4224 base of the line number information for the table is stored in
4225 the symbol associated with the function.
4227 Note: The PE format uses line number 0 for a flag indicating a
4230 The information is copied from the external to the internal
4231 table, and each symbol which marks a function is marked by
4234 How does this work ?
4238 coff_sort_func_alent (const void * arg1
, const void * arg2
)
4240 const alent
*al1
= *(const alent
**) arg1
;
4241 const alent
*al2
= *(const alent
**) arg2
;
4242 const coff_symbol_type
*s1
= (const coff_symbol_type
*) (al1
->u
.sym
);
4243 const coff_symbol_type
*s2
= (const coff_symbol_type
*) (al2
->u
.sym
);
4245 if (s1
== NULL
|| s2
== NULL
)
4247 if (s1
->symbol
.value
< s2
->symbol
.value
)
4249 else if (s1
->symbol
.value
> s2
->symbol
.value
)
4256 coff_slurp_line_table (bfd
*abfd
, asection
*asect
)
4258 LINENO
*native_lineno
;
4259 alent
*lineno_cache
;
4260 unsigned int counter
;
4262 bfd_vma prev_offset
= 0;
4263 bfd_boolean ordered
= TRUE
;
4264 unsigned int nbr_func
;
4266 bfd_boolean have_func
;
4267 bfd_boolean ret
= TRUE
;
4269 if (asect
->lineno_count
== 0)
4272 BFD_ASSERT (asect
->lineno
== NULL
);
4274 if (asect
->lineno_count
> asect
->size
)
4277 (_("%pB: warning: line number count (%#lx) exceeds section size (%#lx)"),
4278 abfd
, (unsigned long) asect
->lineno_count
, (unsigned long) asect
->size
);
4282 lineno_cache
= (alent
*) bfd_alloc2 (abfd
,
4283 (bfd_size_type
) asect
->lineno_count
+ 1,
4285 if (lineno_cache
== NULL
)
4288 native_lineno
= (LINENO
*) buy_and_read (abfd
, asect
->line_filepos
,
4289 asect
->lineno_count
,
4290 bfd_coff_linesz (abfd
));
4291 if (native_lineno
== NULL
)
4294 (_("%pB: warning: line number table read failed"), abfd
);
4295 bfd_release (abfd
, lineno_cache
);
4299 cache_ptr
= lineno_cache
;
4300 asect
->lineno
= lineno_cache
;
4301 src
= native_lineno
;
4305 for (counter
= 0; counter
< asect
->lineno_count
; counter
++, src
++)
4307 struct internal_lineno dst
;
4309 bfd_coff_swap_lineno_in (abfd
, src
, &dst
);
4310 cache_ptr
->line_number
= dst
.l_lnno
;
4311 /* Appease memory checkers that get all excited about
4312 uninitialised memory when copying alents if u.offset is
4313 larger than u.sym. (64-bit BFD on 32-bit host.) */
4314 memset (&cache_ptr
->u
, 0, sizeof (cache_ptr
->u
));
4316 if (cache_ptr
->line_number
== 0)
4318 combined_entry_type
* ent
;
4319 unsigned long symndx
;
4320 coff_symbol_type
*sym
;
4323 symndx
= dst
.l_addr
.l_symndx
;
4324 if (symndx
>= obj_raw_syment_count (abfd
))
4327 /* xgettext:c-format */
4328 (_("%pB: warning: illegal symbol index 0x%lx in line number entry %d"),
4329 abfd
, symndx
, counter
);
4330 cache_ptr
->line_number
= -1;
4335 ent
= obj_raw_syments (abfd
) + symndx
;
4336 /* FIXME: We should not be casting between ints and
4337 pointers like this. */
4341 /* xgettext:c-format */
4342 (_("%pB: warning: illegal symbol index 0x%lx in line number entry %d"),
4343 abfd
, symndx
, counter
);
4344 cache_ptr
->line_number
= -1;
4348 sym
= (coff_symbol_type
*) (ent
->u
.syment
._n
._n_n
._n_zeroes
);
4350 /* PR 17512 file: 078-10659-0.004 */
4351 if (sym
< obj_symbols (abfd
)
4352 || sym
>= obj_symbols (abfd
) + bfd_get_symcount (abfd
))
4355 /* xgettext:c-format */
4356 (_("%pB: warning: illegal symbol in line number entry %d"),
4358 cache_ptr
->line_number
= -1;
4365 cache_ptr
->u
.sym
= (asymbol
*) sym
;
4366 if (sym
->lineno
!= NULL
)
4368 /* xgettext:c-format */
4369 (_("%pB: warning: duplicate line number information for `%s'"),
4370 abfd
, bfd_asymbol_name (&sym
->symbol
));
4372 sym
->lineno
= cache_ptr
;
4373 if (sym
->symbol
.value
< prev_offset
)
4375 prev_offset
= sym
->symbol
.value
;
4377 else if (!have_func
)
4378 /* Drop line information that has no associated function.
4379 PR 17521: file: 078-10659-0.004. */
4382 cache_ptr
->u
.offset
= dst
.l_addr
.l_paddr
- bfd_section_vma (asect
);
4386 asect
->lineno_count
= cache_ptr
- lineno_cache
;
4387 memset (cache_ptr
, 0, sizeof (*cache_ptr
));
4388 bfd_release (abfd
, native_lineno
);
4390 /* On some systems (eg AIX5.3) the lineno table may not be sorted. */
4393 /* Sort the table. */
4395 alent
*n_lineno_cache
;
4397 /* Create a table of functions. */
4398 func_table
= (alent
**) bfd_alloc2 (abfd
, nbr_func
, sizeof (alent
*));
4399 if (func_table
!= NULL
)
4401 alent
**p
= func_table
;
4404 for (i
= 0; i
< asect
->lineno_count
; i
++)
4405 if (lineno_cache
[i
].line_number
== 0)
4406 *p
++ = &lineno_cache
[i
];
4408 BFD_ASSERT ((unsigned int) (p
- func_table
) == nbr_func
);
4410 /* Sort by functions. */
4411 qsort (func_table
, nbr_func
, sizeof (alent
*), coff_sort_func_alent
);
4413 /* Create the new sorted table. */
4414 n_lineno_cache
= (alent
*) bfd_alloc2 (abfd
, asect
->lineno_count
,
4416 if (n_lineno_cache
!= NULL
)
4418 alent
*n_cache_ptr
= n_lineno_cache
;
4420 for (i
= 0; i
< nbr_func
; i
++)
4422 coff_symbol_type
*sym
;
4423 alent
*old_ptr
= func_table
[i
];
4425 /* Update the function entry. */
4426 sym
= (coff_symbol_type
*) old_ptr
->u
.sym
;
4427 /* PR binutils/17512: Point the lineno to where
4428 this entry will be after the memcpy below. */
4429 sym
->lineno
= lineno_cache
+ (n_cache_ptr
- n_lineno_cache
);
4430 /* Copy the function and line number entries. */
4432 *n_cache_ptr
++ = *old_ptr
++;
4433 while (old_ptr
->line_number
!= 0);
4436 memcpy (lineno_cache
, n_lineno_cache
,
4437 asect
->lineno_count
* sizeof (alent
));
4441 bfd_release (abfd
, func_table
);
4450 /* Slurp in the symbol table, converting it to generic form. Note
4451 that if coff_relocate_section is defined, the linker will read
4452 symbols via coff_link_add_symbols, rather than via this routine. */
4455 coff_slurp_symbol_table (bfd
* abfd
)
4457 combined_entry_type
*native_symbols
;
4458 coff_symbol_type
*cached_area
;
4459 unsigned int *table_ptr
;
4460 unsigned int number_of_symbols
= 0;
4461 bfd_boolean ret
= TRUE
;
4463 if (obj_symbols (abfd
))
4466 /* Read in the symbol table. */
4467 if ((native_symbols
= coff_get_normalized_symtab (abfd
)) == NULL
)
4470 /* Allocate enough room for all the symbols in cached form. */
4471 cached_area
= (coff_symbol_type
*) bfd_alloc2 (abfd
,
4472 obj_raw_syment_count (abfd
),
4473 sizeof (coff_symbol_type
));
4474 if (cached_area
== NULL
)
4477 table_ptr
= (unsigned int *) bfd_zalloc2 (abfd
, obj_raw_syment_count (abfd
),
4478 sizeof (unsigned int));
4480 if (table_ptr
== NULL
)
4484 coff_symbol_type
*dst
= cached_area
;
4485 unsigned int last_native_index
= obj_raw_syment_count (abfd
);
4486 unsigned int this_index
= 0;
4488 while (this_index
< last_native_index
)
4490 combined_entry_type
*src
= native_symbols
+ this_index
;
4491 table_ptr
[this_index
] = number_of_symbols
;
4493 dst
->symbol
.the_bfd
= abfd
;
4494 BFD_ASSERT (src
->is_sym
);
4495 dst
->symbol
.name
= (char *) (src
->u
.syment
._n
._n_n
._n_offset
);
4496 /* We use the native name field to point to the cached field. */
4497 src
->u
.syment
._n
._n_n
._n_zeroes
= (bfd_hostptr_t
) dst
;
4498 dst
->symbol
.section
= coff_section_from_bfd_index (abfd
,
4499 src
->u
.syment
.n_scnum
);
4500 dst
->symbol
.flags
= 0;
4501 /* PR 17512: file: 079-7098-0.001:0.1. */
4502 dst
->symbol
.value
= 0;
4503 dst
->done_lineno
= FALSE
;
4505 switch (src
->u
.syment
.n_sclass
)
4511 case C_THUMBEXTFUNC
:
4515 #if ! defined _AIX52 && ! defined AIX_WEAK_SUPPORT
4520 case C_SYSTEM
: /* System Wide variable. */
4523 /* In PE, 0x68 (104) denotes a section symbol. */
4525 /* In PE, 0x69 (105) denotes a weak external symbol. */
4528 switch (coff_classify_symbol (abfd
, &src
->u
.syment
))
4530 case COFF_SYMBOL_GLOBAL
:
4531 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
4532 #if defined COFF_WITH_PE
4533 /* PE sets the symbol to a value relative to the
4534 start of the section. */
4535 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4537 dst
->symbol
.value
= (src
->u
.syment
.n_value
4538 - dst
->symbol
.section
->vma
);
4540 if (ISFCN ((src
->u
.syment
.n_type
)))
4541 /* A function ext does not go at the end of a
4543 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4546 case COFF_SYMBOL_COMMON
:
4547 dst
->symbol
.section
= bfd_com_section_ptr
;
4548 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4551 case COFF_SYMBOL_UNDEFINED
:
4552 dst
->symbol
.section
= bfd_und_section_ptr
;
4553 dst
->symbol
.value
= 0;
4556 case COFF_SYMBOL_PE_SECTION
:
4557 dst
->symbol
.flags
|= BSF_EXPORT
| BSF_SECTION_SYM
;
4558 dst
->symbol
.value
= 0;
4561 case COFF_SYMBOL_LOCAL
:
4562 dst
->symbol
.flags
= BSF_LOCAL
;
4563 #if defined COFF_WITH_PE
4564 /* PE sets the symbol to a value relative to the
4565 start of the section. */
4566 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4568 dst
->symbol
.value
= (src
->u
.syment
.n_value
4569 - dst
->symbol
.section
->vma
);
4571 if (ISFCN ((src
->u
.syment
.n_type
)))
4572 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4577 /* A symbol with a csect entry should not go at the end. */
4578 if (src
->u
.syment
.n_numaux
> 0)
4579 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
4583 if (src
->u
.syment
.n_sclass
== C_NT_WEAK
)
4584 dst
->symbol
.flags
|= BSF_WEAK
;
4586 if (src
->u
.syment
.n_sclass
== C_SECTION
4587 && src
->u
.syment
.n_scnum
> 0)
4588 dst
->symbol
.flags
= BSF_LOCAL
;
4590 if (src
->u
.syment
.n_sclass
== C_WEAKEXT
4592 || src
->u
.syment
.n_sclass
== C_AIX_WEAKEXT
4595 dst
->symbol
.flags
|= BSF_WEAK
;
4599 case C_STAT
: /* Static. */
4601 case C_THUMBSTAT
: /* Thumb static. */
4602 case C_THUMBLABEL
: /* Thumb label. */
4603 case C_THUMBSTATFUNC
:/* Thumb static function. */
4606 case C_DWARF
: /* A label in a dwarf section. */
4607 case C_INFO
: /* A label in a comment section. */
4609 case C_LABEL
: /* Label. */
4610 if (src
->u
.syment
.n_scnum
== N_DEBUG
)
4611 dst
->symbol
.flags
= BSF_DEBUGGING
;
4613 dst
->symbol
.flags
= BSF_LOCAL
;
4615 /* Base the value as an index from the base of the
4616 section, if there is one. */
4617 if (dst
->symbol
.section
)
4619 #if defined COFF_WITH_PE
4620 /* PE sets the symbol to a value relative to the
4621 start of the section. */
4622 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4624 dst
->symbol
.value
= (src
->u
.syment
.n_value
4625 - dst
->symbol
.section
->vma
);
4629 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4632 case C_MOS
: /* Member of structure. */
4633 case C_EOS
: /* End of structure. */
4634 case C_REGPARM
: /* Register parameter. */
4635 case C_REG
: /* register variable. */
4636 /* C_AUTOARG conflicts with TI COFF C_UEXT. */
4637 case C_TPDEF
: /* Type definition. */
4639 case C_AUTO
: /* Automatic variable. */
4640 case C_FIELD
: /* Bit field. */
4641 case C_ENTAG
: /* Enumeration tag. */
4642 case C_MOE
: /* Member of enumeration. */
4643 case C_MOU
: /* Member of union. */
4644 case C_UNTAG
: /* Union tag. */
4645 dst
->symbol
.flags
= BSF_DEBUGGING
;
4646 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4649 case C_FILE
: /* File name. */
4650 case C_STRTAG
: /* Structure tag. */
4667 dst
->symbol
.flags
= BSF_DEBUGGING
;
4668 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4672 case C_BINCL
: /* Beginning of include file. */
4673 case C_EINCL
: /* Ending of include file. */
4674 /* The value is actually a pointer into the line numbers
4675 of the file. We locate the line number entry, and
4676 set the section to the section which contains it, and
4677 the value to the index in that section. */
4681 dst
->symbol
.flags
= BSF_DEBUGGING
;
4682 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
4683 if (sec
->line_filepos
<= (file_ptr
) src
->u
.syment
.n_value
4684 && ((file_ptr
) (sec
->line_filepos
4685 + sec
->lineno_count
* bfd_coff_linesz (abfd
))
4686 > (file_ptr
) src
->u
.syment
.n_value
))
4689 dst
->symbol
.value
= 0;
4692 dst
->symbol
.section
= sec
;
4693 dst
->symbol
.value
= ((src
->u
.syment
.n_value
4694 - sec
->line_filepos
)
4695 / bfd_coff_linesz (abfd
));
4702 dst
->symbol
.flags
= BSF_DEBUGGING
;
4704 /* The value is actually a symbol index. Save a pointer
4705 to the symbol instead of the index. FIXME: This
4706 should use a union. */
4707 src
->u
.syment
.n_value
=
4708 (long) (intptr_t) (native_symbols
+ src
->u
.syment
.n_value
);
4709 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4714 case C_BLOCK
: /* ".bb" or ".eb". */
4715 case C_FCN
: /* ".bf" or ".ef" (or PE ".lf"). */
4716 case C_EFCN
: /* Physical end of function. */
4717 #if defined COFF_WITH_PE
4718 /* PE sets the symbol to a value relative to the start
4720 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4721 if (strcmp (dst
->symbol
.name
, ".bf") != 0)
4723 /* PE uses funny values for .ef and .lf; don't
4725 dst
->symbol
.flags
= BSF_DEBUGGING
;
4728 dst
->symbol
.flags
= BSF_DEBUGGING
| BSF_DEBUGGING_RELOC
;
4730 /* Base the value as an index from the base of the
4732 dst
->symbol
.flags
= BSF_LOCAL
;
4733 dst
->symbol
.value
= (src
->u
.syment
.n_value
4734 - dst
->symbol
.section
->vma
);
4738 case C_STATLAB
: /* Static load time label. */
4739 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4740 dst
->symbol
.flags
= BSF_GLOBAL
;
4744 /* PE DLLs sometimes have zeroed out symbols for some
4745 reason. Just ignore them without a warning. */
4746 if (src
->u
.syment
.n_type
== 0
4747 && src
->u
.syment
.n_value
== 0
4748 && src
->u
.syment
.n_scnum
== 0)
4751 /* XCOFF specific: deleted entry. */
4752 if (src
->u
.syment
.n_value
== C_NULL_VALUE
)
4756 case C_EXTDEF
: /* External definition. */
4757 case C_ULABEL
: /* Undefined label. */
4758 case C_USTATIC
: /* Undefined static. */
4759 #ifndef COFF_WITH_PE
4760 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4761 class to represent a section symbol. */
4762 case C_LINE
: /* line # reformatted as symbol table entry. */
4763 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4764 case C_ALIAS
: /* Duplicate tag. */
4766 /* New storage classes for TI COFF. */
4768 case C_UEXT
: /* Tentative external definition. */
4770 case C_EXTLAB
: /* External load time label. */
4773 /* xgettext:c-format */
4774 (_("%pB: unrecognized storage class %d for %s symbol `%s'"),
4775 abfd
, src
->u
.syment
.n_sclass
,
4776 dst
->symbol
.section
->name
, dst
->symbol
.name
);
4779 case C_HIDDEN
: /* Ext symbol in dmert public lib. */
4780 /* PR 20722: These symbols can also be generated by
4781 building DLLs with --gc-sections enabled. */
4782 dst
->symbol
.flags
= BSF_DEBUGGING
;
4783 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4788 dst
->symbol
.udata
.i
= 0;
4791 this_index
+= (src
->u
.syment
.n_numaux
) + 1;
4793 number_of_symbols
++;
4797 obj_symbols (abfd
) = cached_area
;
4798 obj_raw_syments (abfd
) = native_symbols
;
4800 abfd
->symcount
= number_of_symbols
;
4801 obj_convert (abfd
) = table_ptr
;
4802 /* Slurp the line tables for each section too. */
4809 if (! coff_slurp_line_table (abfd
, p
))
4818 /* Classify a COFF symbol. A couple of targets have globally visible
4819 symbols which are not class C_EXT, and this handles those. It also
4820 recognizes some special PE cases. */
4822 static enum coff_symbol_classification
4823 coff_classify_symbol (bfd
*abfd
,
4824 struct internal_syment
*syment
)
4826 /* FIXME: This partially duplicates the switch in
4827 coff_slurp_symbol_table. */
4828 switch (syment
->n_sclass
)
4834 case C_THUMBEXTFUNC
:
4842 if (syment
->n_scnum
== 0)
4844 if (syment
->n_value
== 0)
4845 return COFF_SYMBOL_UNDEFINED
;
4847 return COFF_SYMBOL_COMMON
;
4849 return COFF_SYMBOL_GLOBAL
;
4856 if (syment
->n_sclass
== C_STAT
)
4858 if (syment
->n_scnum
== 0)
4859 /* The Microsoft compiler sometimes generates these if a
4860 small static function is inlined every time it is used.
4861 The function is discarded, but the symbol table entry
4863 return COFF_SYMBOL_LOCAL
;
4865 #ifdef STRICT_PE_FORMAT
4866 /* This is correct for Microsoft generated objects, but it
4867 breaks gas generated objects. */
4868 if (syment
->n_value
== 0)
4872 char buf
[SYMNMLEN
+ 1];
4874 name
= _bfd_coff_internal_syment_name (abfd
, syment
, buf
)
4875 sec
= coff_section_from_bfd_index (abfd
, syment
->n_scnum
);
4876 if (sec
!= NULL
&& name
!= NULL
4877 && (strcmp (bfd_section_name (sec
), name
) == 0))
4878 return COFF_SYMBOL_PE_SECTION
;
4882 return COFF_SYMBOL_LOCAL
;
4885 if (syment
->n_sclass
== C_SECTION
)
4887 /* In some cases in a DLL generated by the Microsoft linker, the
4888 n_value field will contain garbage. FIXME: This should
4889 probably be handled by the swapping function instead. */
4890 syment
->n_value
= 0;
4891 if (syment
->n_scnum
== 0)
4892 return COFF_SYMBOL_UNDEFINED
;
4893 return COFF_SYMBOL_PE_SECTION
;
4895 #endif /* COFF_WITH_PE */
4897 /* If it is not a global symbol, we presume it is a local symbol. */
4898 if (syment
->n_scnum
== 0)
4900 char buf
[SYMNMLEN
+ 1];
4903 /* xgettext:c-format */
4904 (_("warning: %pB: local symbol `%s' has no section"),
4905 abfd
, _bfd_coff_internal_syment_name (abfd
, syment
, buf
));
4908 return COFF_SYMBOL_LOCAL
;
4915 Coff relocations are easily transformed into the internal BFD form
4918 Reading a coff relocation table is done in the following stages:
4920 o Read the entire coff relocation table into memory.
4922 o Process each relocation in turn; first swap it from the
4923 external to the internal form.
4925 o Turn the symbol referenced in the relocation's symbol index
4926 into a pointer into the canonical symbol table.
4927 This table is the same as the one returned by a call to
4928 @code{bfd_canonicalize_symtab}. The back end will call that
4929 routine and save the result if a canonicalization hasn't been done.
4931 o The reloc index is turned into a pointer to a howto
4932 structure, in a back end specific way. For instance, the 386
4933 uses the @code{r_type} to directly produce an index
4934 into a howto table vector.
4938 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
4940 coff_symbol_type *coffsym = NULL; \
4942 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
4943 coffsym = (obj_symbols (abfd) \
4944 + (cache_ptr->sym_ptr_ptr - symbols)); \
4946 coffsym = coff_symbol_from (ptr); \
4947 if (coffsym != NULL \
4948 && coffsym->native->is_sym \
4949 && coffsym->native->u.syment.n_scnum == 0) \
4950 cache_ptr->addend = 0; \
4951 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
4952 && ptr->section != NULL) \
4953 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
4955 cache_ptr->addend = 0; \
4960 coff_slurp_reloc_table (bfd
* abfd
, sec_ptr asect
, asymbol
** symbols
)
4962 RELOC
*native_relocs
;
4963 arelent
*reloc_cache
;
4967 if (asect
->relocation
)
4969 if (asect
->reloc_count
== 0)
4971 if (asect
->flags
& SEC_CONSTRUCTOR
)
4973 if (!coff_slurp_symbol_table (abfd
))
4976 native_relocs
= (RELOC
*) buy_and_read (abfd
, asect
->rel_filepos
,
4978 bfd_coff_relsz (abfd
));
4979 reloc_cache
= (arelent
*) bfd_alloc2 (abfd
, asect
->reloc_count
,
4982 if (reloc_cache
== NULL
|| native_relocs
== NULL
)
4985 for (idx
= 0; idx
< asect
->reloc_count
; idx
++)
4987 struct internal_reloc dst
;
4988 struct external_reloc
*src
;
4989 #ifndef RELOC_PROCESSING
4993 cache_ptr
= reloc_cache
+ idx
;
4994 src
= native_relocs
+ idx
;
4997 coff_swap_reloc_in (abfd
, src
, &dst
);
4999 #ifdef RELOC_PROCESSING
5000 RELOC_PROCESSING (cache_ptr
, &dst
, symbols
, abfd
, asect
);
5002 cache_ptr
->address
= dst
.r_vaddr
;
5004 if (dst
.r_symndx
!= -1 && symbols
!= NULL
)
5006 if (dst
.r_symndx
< 0 || dst
.r_symndx
>= obj_conv_table_size (abfd
))
5009 /* xgettext:c-format */
5010 (_("%pB: warning: illegal symbol index %ld in relocs"),
5011 abfd
, dst
.r_symndx
);
5012 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
5017 cache_ptr
->sym_ptr_ptr
= (symbols
5018 + obj_convert (abfd
)[dst
.r_symndx
]);
5019 ptr
= *(cache_ptr
->sym_ptr_ptr
);
5024 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
5028 /* The symbols definitions that we have read in have been
5029 relocated as if their sections started at 0. But the offsets
5030 refering to the symbols in the raw data have not been
5031 modified, so we have to have a negative addend to compensate.
5033 Note that symbols which used to be common must be left alone. */
5035 /* Calculate any reloc addend by looking at the symbol. */
5036 CALC_ADDEND (abfd
, ptr
, dst
, cache_ptr
);
5039 cache_ptr
->address
-= asect
->vma
;
5040 /* !! cache_ptr->section = NULL;*/
5042 /* Fill in the cache_ptr->howto field from dst.r_type. */
5043 RTYPE2HOWTO (cache_ptr
, &dst
);
5044 #endif /* RELOC_PROCESSING */
5046 if (cache_ptr
->howto
== NULL
)
5049 /* xgettext:c-format */
5050 (_("%pB: illegal relocation type %d at address %#" PRIx64
),
5051 abfd
, dst
.r_type
, (uint64_t) dst
.r_vaddr
);
5052 bfd_set_error (bfd_error_bad_value
);
5057 asect
->relocation
= reloc_cache
;
5061 #ifndef coff_rtype_to_howto
5064 /* Get the howto structure for a reloc. This is only used if the file
5065 including this one defines coff_relocate_section to be
5066 _bfd_coff_generic_relocate_section, so it is OK if it does not
5067 always work. It is the responsibility of the including file to
5068 make sure it is reasonable if it is needed. */
5070 static reloc_howto_type
*
5071 coff_rtype_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
,
5072 asection
*sec ATTRIBUTE_UNUSED
,
5073 struct internal_reloc
*rel ATTRIBUTE_UNUSED
,
5074 struct coff_link_hash_entry
*h ATTRIBUTE_UNUSED
,
5075 struct internal_syment
*sym ATTRIBUTE_UNUSED
,
5076 bfd_vma
*addendp ATTRIBUTE_UNUSED
)
5080 genrel
.howto
= NULL
;
5081 RTYPE2HOWTO (&genrel
, rel
);
5082 return genrel
.howto
;
5085 #else /* ! defined (RTYPE2HOWTO) */
5087 #define coff_rtype_to_howto NULL
5089 #endif /* ! defined (RTYPE2HOWTO) */
5090 #endif /* ! defined (coff_rtype_to_howto) */
5092 /* This is stupid. This function should be a boolean predicate. */
5095 coff_canonicalize_reloc (bfd
* abfd
,
5100 arelent
*tblptr
= section
->relocation
;
5101 unsigned int count
= 0;
5103 if (section
->flags
& SEC_CONSTRUCTOR
)
5105 /* This section has relocs made up by us, they are not in the
5106 file, so take them out of their chain and place them into
5107 the data area provided. */
5108 arelent_chain
*chain
= section
->constructor_chain
;
5110 for (count
= 0; count
< section
->reloc_count
; count
++)
5112 *relptr
++ = &chain
->relent
;
5113 chain
= chain
->next
;
5118 if (! coff_slurp_reloc_table (abfd
, section
, symbols
))
5121 tblptr
= section
->relocation
;
5123 for (; count
++ < section
->reloc_count
;)
5124 *relptr
++ = tblptr
++;
5127 return section
->reloc_count
;
5130 #ifndef coff_set_reloc
5131 #define coff_set_reloc _bfd_generic_set_reloc
5134 #ifndef coff_reloc16_estimate
5135 #define coff_reloc16_estimate dummy_reloc16_estimate
5138 dummy_reloc16_estimate (bfd
*abfd ATTRIBUTE_UNUSED
,
5139 asection
*input_section ATTRIBUTE_UNUSED
,
5140 arelent
*reloc ATTRIBUTE_UNUSED
,
5141 unsigned int shrink ATTRIBUTE_UNUSED
,
5142 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
)
5150 #ifndef coff_reloc16_extra_cases
5152 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
5154 /* This works even if abort is not declared in any header file. */
5157 dummy_reloc16_extra_cases (bfd
*abfd ATTRIBUTE_UNUSED
,
5158 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
,
5159 struct bfd_link_order
*link_order ATTRIBUTE_UNUSED
,
5160 arelent
*reloc ATTRIBUTE_UNUSED
,
5161 bfd_byte
*data ATTRIBUTE_UNUSED
,
5162 unsigned int *src_ptr ATTRIBUTE_UNUSED
,
5163 unsigned int *dst_ptr ATTRIBUTE_UNUSED
)
5169 /* If coff_relocate_section is defined, we can use the optimized COFF
5170 backend linker. Otherwise we must continue to use the old linker. */
5172 #ifdef coff_relocate_section
5174 #ifndef coff_bfd_link_hash_table_create
5175 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
5177 #ifndef coff_bfd_link_add_symbols
5178 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
5180 #ifndef coff_bfd_final_link
5181 #define coff_bfd_final_link _bfd_coff_final_link
5184 #else /* ! defined (coff_relocate_section) */
5186 #define coff_relocate_section NULL
5187 #ifndef coff_bfd_link_hash_table_create
5188 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
5190 #ifndef coff_bfd_link_add_symbols
5191 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
5193 #define coff_bfd_final_link _bfd_generic_final_link
5195 #endif /* ! defined (coff_relocate_section) */
5197 #define coff_bfd_link_just_syms _bfd_generic_link_just_syms
5198 #define coff_bfd_copy_link_hash_symbol_type \
5199 _bfd_generic_copy_link_hash_symbol_type
5200 #define coff_bfd_link_split_section _bfd_generic_link_split_section
5202 #define coff_bfd_link_check_relocs _bfd_generic_link_check_relocs
5204 #ifndef coff_start_final_link
5205 #define coff_start_final_link NULL
5208 #ifndef coff_adjust_symndx
5209 #define coff_adjust_symndx NULL
5212 #ifndef coff_link_add_one_symbol
5213 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
5216 #ifndef coff_link_output_has_begun
5219 coff_link_output_has_begun (bfd
* abfd
,
5220 struct coff_final_link_info
* info ATTRIBUTE_UNUSED
)
5222 return abfd
->output_has_begun
;
5226 #ifndef coff_final_link_postscript
5229 coff_final_link_postscript (bfd
* abfd ATTRIBUTE_UNUSED
,
5230 struct coff_final_link_info
* pfinfo ATTRIBUTE_UNUSED
)
5236 #ifndef coff_SWAP_aux_in
5237 #define coff_SWAP_aux_in coff_swap_aux_in
5239 #ifndef coff_SWAP_sym_in
5240 #define coff_SWAP_sym_in coff_swap_sym_in
5242 #ifndef coff_SWAP_lineno_in
5243 #define coff_SWAP_lineno_in coff_swap_lineno_in
5245 #ifndef coff_SWAP_aux_out
5246 #define coff_SWAP_aux_out coff_swap_aux_out
5248 #ifndef coff_SWAP_sym_out
5249 #define coff_SWAP_sym_out coff_swap_sym_out
5251 #ifndef coff_SWAP_lineno_out
5252 #define coff_SWAP_lineno_out coff_swap_lineno_out
5254 #ifndef coff_SWAP_reloc_out
5255 #define coff_SWAP_reloc_out coff_swap_reloc_out
5257 #ifndef coff_SWAP_filehdr_out
5258 #define coff_SWAP_filehdr_out coff_swap_filehdr_out
5260 #ifndef coff_SWAP_aouthdr_out
5261 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
5263 #ifndef coff_SWAP_scnhdr_out
5264 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
5266 #ifndef coff_SWAP_reloc_in
5267 #define coff_SWAP_reloc_in coff_swap_reloc_in
5269 #ifndef coff_SWAP_filehdr_in
5270 #define coff_SWAP_filehdr_in coff_swap_filehdr_in
5272 #ifndef coff_SWAP_aouthdr_in
5273 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
5275 #ifndef coff_SWAP_scnhdr_in
5276 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
5279 static bfd_coff_backend_data bfd_coff_std_swap_table ATTRIBUTE_UNUSED
=
5281 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5282 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5283 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5284 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5285 coff_SWAP_scnhdr_out
,
5286 FILHSZ
, AOUTSZ
, SCNHSZ
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
5287 #ifdef COFF_LONG_FILENAMES
5292 COFF_DEFAULT_LONG_SECTION_NAMES
,
5293 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5294 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5299 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5305 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5306 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
5307 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5308 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5309 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5310 coff_classify_symbol
, coff_compute_section_file_positions
,
5311 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5312 coff_adjust_symndx
, coff_link_add_one_symbol
,
5313 coff_link_output_has_begun
, coff_final_link_postscript
,
5318 /* COFF0 differs in file/section header size and relocation entry size. */
5320 static bfd_coff_backend_data ticoff0_swap_table
=
5322 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5323 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5324 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5325 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5326 coff_SWAP_scnhdr_out
,
5327 FILHSZ_V0
, AOUTSZ
, SCNHSZ_V01
, SYMESZ
, AUXESZ
, RELSZ_V0
, LINESZ
, FILNMLEN
,
5328 #ifdef COFF_LONG_FILENAMES
5333 COFF_DEFAULT_LONG_SECTION_NAMES
,
5334 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5335 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5340 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5346 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5347 coff_SWAP_reloc_in
, ticoff0_bad_format_hook
, coff_set_arch_mach_hook
,
5348 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5349 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5350 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5351 coff_classify_symbol
, coff_compute_section_file_positions
,
5352 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5353 coff_adjust_symndx
, coff_link_add_one_symbol
,
5354 coff_link_output_has_begun
, coff_final_link_postscript
,
5360 /* COFF1 differs in section header size. */
5362 static bfd_coff_backend_data ticoff1_swap_table
=
5364 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5365 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5366 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5367 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5368 coff_SWAP_scnhdr_out
,
5369 FILHSZ
, AOUTSZ
, SCNHSZ_V01
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
5370 #ifdef COFF_LONG_FILENAMES
5375 COFF_DEFAULT_LONG_SECTION_NAMES
,
5376 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5377 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5382 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5388 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5389 coff_SWAP_reloc_in
, ticoff1_bad_format_hook
, coff_set_arch_mach_hook
,
5390 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5391 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5392 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5393 coff_classify_symbol
, coff_compute_section_file_positions
,
5394 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5395 coff_adjust_symndx
, coff_link_add_one_symbol
,
5396 coff_link_output_has_begun
, coff_final_link_postscript
,
5397 bfd_pe_print_pdata
/* huh */
5401 #ifdef COFF_WITH_PE_BIGOBJ
5402 /* The UID for bigobj files. */
5404 static const char header_bigobj_classid
[16] =
5406 0xC7, 0xA1, 0xBA, 0xD1,
5410 0xFA, 0xF6, 0x6A, 0xA4, 0xDC, 0xB8
5413 /* Swap routines. */
5416 coff_bigobj_swap_filehdr_in (bfd
* abfd
, void * src
, void * dst
)
5418 struct external_ANON_OBJECT_HEADER_BIGOBJ
*filehdr_src
=
5419 (struct external_ANON_OBJECT_HEADER_BIGOBJ
*) src
;
5420 struct internal_filehdr
*filehdr_dst
= (struct internal_filehdr
*) dst
;
5422 filehdr_dst
->f_magic
= H_GET_16 (abfd
, filehdr_src
->Machine
);
5423 filehdr_dst
->f_nscns
= H_GET_32 (abfd
, filehdr_src
->NumberOfSections
);
5424 filehdr_dst
->f_timdat
= H_GET_32 (abfd
, filehdr_src
->TimeDateStamp
);
5425 filehdr_dst
->f_symptr
=
5426 GET_FILEHDR_SYMPTR (abfd
, filehdr_src
->PointerToSymbolTable
);
5427 filehdr_dst
->f_nsyms
= H_GET_32 (abfd
, filehdr_src
->NumberOfSymbols
);
5428 filehdr_dst
->f_opthdr
= 0;
5429 filehdr_dst
->f_flags
= 0;
5431 /* Check other magic numbers. */
5432 if (H_GET_16 (abfd
, filehdr_src
->Sig1
) != IMAGE_FILE_MACHINE_UNKNOWN
5433 || H_GET_16 (abfd
, filehdr_src
->Sig2
) != 0xffff
5434 || H_GET_16 (abfd
, filehdr_src
->Version
) != 2
5435 || memcmp (filehdr_src
->ClassID
, header_bigobj_classid
, 16) != 0)
5436 filehdr_dst
->f_opthdr
= 0xffff;
5438 /* Note that CLR metadata are ignored. */
5442 coff_bigobj_swap_filehdr_out (bfd
*abfd
, void * in
, void * out
)
5444 struct internal_filehdr
*filehdr_in
= (struct internal_filehdr
*) in
;
5445 struct external_ANON_OBJECT_HEADER_BIGOBJ
*filehdr_out
=
5446 (struct external_ANON_OBJECT_HEADER_BIGOBJ
*) out
;
5448 memset (filehdr_out
, 0, sizeof (*filehdr_out
));
5450 H_PUT_16 (abfd
, IMAGE_FILE_MACHINE_UNKNOWN
, filehdr_out
->Sig1
);
5451 H_PUT_16 (abfd
, 0xffff, filehdr_out
->Sig2
);
5452 H_PUT_16 (abfd
, 2, filehdr_out
->Version
);
5453 memcpy (filehdr_out
->ClassID
, header_bigobj_classid
, 16);
5454 H_PUT_16 (abfd
, filehdr_in
->f_magic
, filehdr_out
->Machine
);
5455 H_PUT_32 (abfd
, filehdr_in
->f_nscns
, filehdr_out
->NumberOfSections
);
5456 H_PUT_32 (abfd
, filehdr_in
->f_timdat
, filehdr_out
->TimeDateStamp
);
5457 PUT_FILEHDR_SYMPTR (abfd
, filehdr_in
->f_symptr
,
5458 filehdr_out
->PointerToSymbolTable
);
5459 H_PUT_32 (abfd
, filehdr_in
->f_nsyms
, filehdr_out
->NumberOfSymbols
);
5461 return bfd_coff_filhsz (abfd
);
5465 coff_bigobj_swap_sym_in (bfd
* abfd
, void * ext1
, void * in1
)
5467 SYMENT_BIGOBJ
*ext
= (SYMENT_BIGOBJ
*) ext1
;
5468 struct internal_syment
*in
= (struct internal_syment
*) in1
;
5470 if (ext
->e
.e_name
[0] == 0)
5472 in
->_n
._n_n
._n_zeroes
= 0;
5473 in
->_n
._n_n
._n_offset
= H_GET_32 (abfd
, ext
->e
.e
.e_offset
);
5477 #if SYMNMLEN != E_SYMNMLEN
5478 #error we need to cope with truncating or extending SYMNMLEN
5480 memcpy (in
->_n
._n_name
, ext
->e
.e_name
, SYMNMLEN
);
5484 in
->n_value
= H_GET_32 (abfd
, ext
->e_value
);
5485 BFD_ASSERT (sizeof (in
->n_scnum
) >= 4);
5486 in
->n_scnum
= H_GET_32 (abfd
, ext
->e_scnum
);
5487 in
->n_type
= H_GET_16 (abfd
, ext
->e_type
);
5488 in
->n_sclass
= H_GET_8 (abfd
, ext
->e_sclass
);
5489 in
->n_numaux
= H_GET_8 (abfd
, ext
->e_numaux
);
5493 coff_bigobj_swap_sym_out (bfd
* abfd
, void * inp
, void * extp
)
5495 struct internal_syment
*in
= (struct internal_syment
*) inp
;
5496 SYMENT_BIGOBJ
*ext
= (SYMENT_BIGOBJ
*) extp
;
5498 if (in
->_n
._n_name
[0] == 0)
5500 H_PUT_32 (abfd
, 0, ext
->e
.e
.e_zeroes
);
5501 H_PUT_32 (abfd
, in
->_n
._n_n
._n_offset
, ext
->e
.e
.e_offset
);
5505 #if SYMNMLEN != E_SYMNMLEN
5506 #error we need to cope with truncating or extending SYMNMLEN
5508 memcpy (ext
->e
.e_name
, in
->_n
._n_name
, SYMNMLEN
);
5512 H_PUT_32 (abfd
, in
->n_value
, ext
->e_value
);
5513 H_PUT_32 (abfd
, in
->n_scnum
, ext
->e_scnum
);
5515 H_PUT_16 (abfd
, in
->n_type
, ext
->e_type
);
5516 H_PUT_8 (abfd
, in
->n_sclass
, ext
->e_sclass
);
5517 H_PUT_8 (abfd
, in
->n_numaux
, ext
->e_numaux
);
5519 return SYMESZ_BIGOBJ
;
5523 coff_bigobj_swap_aux_in (bfd
*abfd
,
5531 AUXENT_BIGOBJ
*ext
= (AUXENT_BIGOBJ
*) ext1
;
5532 union internal_auxent
*in
= (union internal_auxent
*) in1
;
5534 /* Make sure that all fields in the aux structure are
5536 memset (in
, 0, sizeof * in
);
5543 memcpy (in
->x_file
.x_fname
, ext
->File
.Name
,
5544 numaux
* sizeof (AUXENT_BIGOBJ
));
5547 memcpy (in
->x_file
.x_fname
, ext
->File
.Name
, sizeof (ext
->File
.Name
));
5555 in
->x_scn
.x_scnlen
= H_GET_32 (abfd
, ext
->Section
.Length
);
5556 in
->x_scn
.x_nreloc
=
5557 H_GET_16 (abfd
, ext
->Section
.NumberOfRelocations
);
5558 in
->x_scn
.x_nlinno
=
5559 H_GET_16 (abfd
, ext
->Section
.NumberOfLinenumbers
);
5560 in
->x_scn
.x_checksum
= H_GET_32 (abfd
, ext
->Section
.Checksum
);
5561 in
->x_scn
.x_associated
= H_GET_16 (abfd
, ext
->Section
.Number
)
5562 | (H_GET_16 (abfd
, ext
->Section
.HighNumber
) << 16);
5563 in
->x_scn
.x_comdat
= H_GET_8 (abfd
, ext
->Section
.Selection
);
5569 in
->x_sym
.x_tagndx
.l
= H_GET_32 (abfd
, ext
->Sym
.WeakDefaultSymIndex
);
5570 /* Characteristics is ignored. */
5576 coff_bigobj_swap_aux_out (bfd
* abfd
,
5580 int indx ATTRIBUTE_UNUSED
,
5581 int numaux ATTRIBUTE_UNUSED
,
5584 union internal_auxent
* in
= (union internal_auxent
*) inp
;
5585 AUXENT_BIGOBJ
*ext
= (AUXENT_BIGOBJ
*) extp
;
5587 memset (ext
, 0, AUXESZ
);
5592 memcpy (ext
->File
.Name
, in
->x_file
.x_fname
, sizeof (ext
->File
.Name
));
5601 H_PUT_32 (abfd
, in
->x_scn
.x_scnlen
, ext
->Section
.Length
);
5602 H_PUT_16 (abfd
, in
->x_scn
.x_nreloc
,
5603 ext
->Section
.NumberOfRelocations
);
5604 H_PUT_16 (abfd
, in
->x_scn
.x_nlinno
,
5605 ext
->Section
.NumberOfLinenumbers
);
5606 H_PUT_32 (abfd
, in
->x_scn
.x_checksum
, ext
->Section
.Checksum
);
5607 H_PUT_16 (abfd
, in
->x_scn
.x_associated
& 0xffff,
5608 ext
->Section
.Number
);
5609 H_PUT_16 (abfd
, (in
->x_scn
.x_associated
>> 16),
5610 ext
->Section
.HighNumber
);
5611 H_PUT_8 (abfd
, in
->x_scn
.x_comdat
, ext
->Section
.Selection
);
5617 H_PUT_32 (abfd
, in
->x_sym
.x_tagndx
.l
, ext
->Sym
.WeakDefaultSymIndex
);
5618 H_PUT_32 (abfd
, 1, ext
->Sym
.WeakSearchType
);
5623 static bfd_coff_backend_data bigobj_swap_table
=
5625 coff_bigobj_swap_aux_in
, coff_bigobj_swap_sym_in
, coff_SWAP_lineno_in
,
5626 coff_bigobj_swap_aux_out
, coff_bigobj_swap_sym_out
,
5627 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5628 coff_bigobj_swap_filehdr_out
, coff_SWAP_aouthdr_out
,
5629 coff_SWAP_scnhdr_out
,
5630 FILHSZ_BIGOBJ
, AOUTSZ
, SCNHSZ
, SYMESZ_BIGOBJ
, AUXESZ_BIGOBJ
,
5631 RELSZ
, LINESZ
, FILNMLEN_BIGOBJ
,
5633 COFF_DEFAULT_LONG_SECTION_NAMES
,
5634 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5638 coff_bigobj_swap_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5639 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
5640 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5641 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5642 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5643 coff_classify_symbol
, coff_compute_section_file_positions
,
5644 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5645 coff_adjust_symndx
, coff_link_add_one_symbol
,
5646 coff_link_output_has_begun
, coff_final_link_postscript
,
5647 bfd_pe_print_pdata
/* huh */
5650 #endif /* COFF_WITH_PE_BIGOBJ */
5652 #ifndef coff_close_and_cleanup
5653 #define coff_close_and_cleanup _bfd_coff_close_and_cleanup
5656 #ifndef coff_bfd_free_cached_info
5657 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
5660 #ifndef coff_get_section_contents
5661 #define coff_get_section_contents _bfd_generic_get_section_contents
5664 #ifndef coff_bfd_copy_private_symbol_data
5665 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
5668 #ifndef coff_bfd_copy_private_header_data
5669 #define coff_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
5672 #ifndef coff_bfd_copy_private_section_data
5673 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
5676 #ifndef coff_bfd_copy_private_bfd_data
5677 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
5680 #ifndef coff_bfd_merge_private_bfd_data
5681 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
5684 #ifndef coff_bfd_set_private_flags
5685 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
5688 #ifndef coff_bfd_print_private_bfd_data
5689 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
5692 #ifndef coff_bfd_is_local_label_name
5693 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
5696 #ifndef coff_bfd_is_target_special_symbol
5697 #define coff_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false
5700 #ifndef coff_read_minisymbols
5701 #define coff_read_minisymbols _bfd_generic_read_minisymbols
5704 #ifndef coff_minisymbol_to_symbol
5705 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
5708 /* The reloc lookup routine must be supplied by each individual COFF
5710 #ifndef coff_bfd_reloc_type_lookup
5711 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5713 #ifndef coff_bfd_reloc_name_lookup
5714 #define coff_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5717 #ifndef coff_bfd_get_relocated_section_contents
5718 #define coff_bfd_get_relocated_section_contents \
5719 bfd_generic_get_relocated_section_contents
5722 #ifndef coff_bfd_relax_section
5723 #define coff_bfd_relax_section bfd_generic_relax_section
5726 #ifndef coff_bfd_gc_sections
5727 #define coff_bfd_gc_sections bfd_coff_gc_sections
5730 #ifndef coff_bfd_lookup_section_flags
5731 #define coff_bfd_lookup_section_flags bfd_generic_lookup_section_flags
5734 #ifndef coff_bfd_merge_sections
5735 #define coff_bfd_merge_sections bfd_generic_merge_sections
5738 #ifndef coff_bfd_is_group_section
5739 #define coff_bfd_is_group_section bfd_generic_is_group_section
5742 #ifndef coff_bfd_group_name
5743 #define coff_bfd_group_name bfd_coff_group_name
5746 #ifndef coff_bfd_discard_group
5747 #define coff_bfd_discard_group bfd_generic_discard_group
5750 #ifndef coff_section_already_linked
5751 #define coff_section_already_linked \
5752 _bfd_coff_section_already_linked
5755 #ifndef coff_bfd_define_common_symbol
5756 #define coff_bfd_define_common_symbol bfd_generic_define_common_symbol
5759 #ifndef coff_bfd_link_hide_symbol
5760 #define coff_bfd_link_hide_symbol _bfd_generic_link_hide_symbol
5763 #ifndef coff_bfd_define_start_stop
5764 #define coff_bfd_define_start_stop bfd_generic_define_start_stop
5767 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5768 const bfd_target VAR = \
5771 bfd_target_coff_flavour, \
5772 BFD_ENDIAN_BIG, /* Data byte order is big. */ \
5773 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5774 /* object flags */ \
5775 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5776 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5777 /* section flags */ \
5778 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5779 UNDER, /* Leading symbol underscore. */ \
5780 '/', /* AR_pad_char. */ \
5781 15, /* AR_max_namelen. */ \
5782 0, /* match priority. */ \
5784 /* Data conversion functions. */ \
5785 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5786 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5787 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5789 /* Header conversion functions. */ \
5790 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5791 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5792 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5794 { /* bfd_check_format. */ \
5795 _bfd_dummy_target, \
5797 bfd_generic_archive_p, \
5800 { /* bfd_set_format. */ \
5801 _bfd_bool_bfd_false_error, \
5803 _bfd_generic_mkarchive, \
5804 _bfd_bool_bfd_false_error \
5806 { /* bfd_write_contents. */ \
5807 _bfd_bool_bfd_false_error, \
5808 coff_write_object_contents, \
5809 _bfd_write_archive_contents, \
5810 _bfd_bool_bfd_false_error \
5813 BFD_JUMP_TABLE_GENERIC (coff), \
5814 BFD_JUMP_TABLE_COPY (coff), \
5815 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5816 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5817 BFD_JUMP_TABLE_SYMBOLS (coff), \
5818 BFD_JUMP_TABLE_RELOCS (coff), \
5819 BFD_JUMP_TABLE_WRITE (coff), \
5820 BFD_JUMP_TABLE_LINK (coff), \
5821 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5828 #define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5829 const bfd_target VAR = \
5832 bfd_target_coff_flavour, \
5833 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5834 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5835 /* object flags */ \
5836 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5837 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5838 /* section flags */ \
5839 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5840 UNDER, /* Leading symbol underscore. */ \
5841 '/', /* AR_pad_char. */ \
5842 15, /* AR_max_namelen. */ \
5843 0, /* match priority. */ \
5845 /* Data conversion functions. */ \
5846 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5847 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5848 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5850 /* Header conversion functions. */ \
5851 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5852 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5853 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5855 { /* bfd_check_format. */ \
5856 _bfd_dummy_target, \
5858 bfd_generic_archive_p, \
5861 { /* bfd_set_format. */ \
5862 _bfd_bool_bfd_false_error, \
5864 _bfd_generic_mkarchive, \
5865 _bfd_bool_bfd_false_error \
5867 { /* bfd_write_contents. */ \
5868 _bfd_bool_bfd_false_error, \
5869 coff_write_object_contents, \
5870 _bfd_write_archive_contents, \
5871 _bfd_bool_bfd_false_error \
5874 BFD_JUMP_TABLE_GENERIC (coff), \
5875 BFD_JUMP_TABLE_COPY (coff), \
5876 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5877 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5878 BFD_JUMP_TABLE_SYMBOLS (coff), \
5879 BFD_JUMP_TABLE_RELOCS (coff), \
5880 BFD_JUMP_TABLE_WRITE (coff), \
5881 BFD_JUMP_TABLE_LINK (coff), \
5882 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5889 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5890 const bfd_target VAR = \
5893 bfd_target_coff_flavour, \
5894 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5895 BFD_ENDIAN_LITTLE, /* Header byte order is little. */ \
5896 /* object flags */ \
5897 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5898 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5899 /* section flags */ \
5900 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5901 UNDER, /* Leading symbol underscore. */ \
5902 '/', /* AR_pad_char. */ \
5903 15, /* AR_max_namelen. */ \
5904 0, /* match priority. */ \
5906 /* Data conversion functions. */ \
5907 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5908 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5909 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5910 /* Header conversion functions. */ \
5911 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5912 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5913 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5915 { /* bfd_check_format. */ \
5916 _bfd_dummy_target, \
5918 bfd_generic_archive_p, \
5921 { /* bfd_set_format. */ \
5922 _bfd_bool_bfd_false_error, \
5924 _bfd_generic_mkarchive, \
5925 _bfd_bool_bfd_false_error \
5927 { /* bfd_write_contents. */ \
5928 _bfd_bool_bfd_false_error, \
5929 coff_write_object_contents, \
5930 _bfd_write_archive_contents, \
5931 _bfd_bool_bfd_false_error \
5934 BFD_JUMP_TABLE_GENERIC (coff), \
5935 BFD_JUMP_TABLE_COPY (coff), \
5936 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5937 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5938 BFD_JUMP_TABLE_SYMBOLS (coff), \
5939 BFD_JUMP_TABLE_RELOCS (coff), \
5940 BFD_JUMP_TABLE_WRITE (coff), \
5941 BFD_JUMP_TABLE_LINK (coff), \
5942 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \