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_WITH_PE) || defined(COFF_GO32_EXE) || defined(COFF_GO32)
368 # define COFF_WITH_EXTENDED_RELOC_COUNTER
371 #if defined (COFF_LONG_SECTION_NAMES)
372 /* Needed to expand the inputs to BLANKOR1TOODD. */
373 #define COFFLONGSECTIONCATHELPER(x,y) x ## y
374 /* If the input macro Y is blank or '1', return an odd number; if it is
375 '0', return an even number. Result undefined in all other cases. */
376 #define BLANKOR1TOODD(y) COFFLONGSECTIONCATHELPER(1,y)
377 /* Defined to numerical 0 or 1 according to whether generation of long
378 section names is disabled or enabled by default. */
379 #define COFF_ENABLE_LONG_SECTION_NAMES (BLANKOR1TOODD(COFF_LONG_SECTION_NAMES) & 1)
380 /* Where long section names are supported, we allow them to be enabled
381 and disabled at runtime, so select an appropriate hook function for
382 _bfd_coff_set_long_section_names. */
383 #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_allowed
384 #else /* !defined (COFF_LONG_SECTION_NAMES) */
385 /* If long section names are not supported, this stub disallows any
386 attempt to enable them at run-time. */
387 #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_disallowed
388 #endif /* defined (COFF_LONG_SECTION_NAMES) */
390 /* Define a macro that can be used to initialise both the fields relating
391 to long section names in the backend data struct simultaneously. */
392 #if COFF_ENABLE_LONG_SECTION_NAMES
393 #define COFF_DEFAULT_LONG_SECTION_NAMES (TRUE), COFF_LONG_SECTION_NAMES_SETTER
394 #else /* !COFF_ENABLE_LONG_SECTION_NAMES */
395 #define COFF_DEFAULT_LONG_SECTION_NAMES (FALSE), COFF_LONG_SECTION_NAMES_SETTER
396 #endif /* COFF_ENABLE_LONG_SECTION_NAMES */
398 #if defined (COFF_LONG_SECTION_NAMES)
399 static bfd_boolean bfd_coff_set_long_section_names_allowed
401 #else /* !defined (COFF_LONG_SECTION_NAMES) */
402 static bfd_boolean bfd_coff_set_long_section_names_disallowed
404 #endif /* defined (COFF_LONG_SECTION_NAMES) */
405 static long sec_to_styp_flags
406 (const char *, flagword
);
407 static bfd_boolean styp_to_sec_flags
408 (bfd
*, void *, const char *, asection
*, flagword
*);
409 static bfd_boolean coff_bad_format_hook
411 static void coff_set_custom_section_alignment
412 (bfd
*, asection
*, const struct coff_section_alignment_entry
*,
414 static bfd_boolean coff_new_section_hook
416 static bfd_boolean coff_set_arch_mach_hook
418 static bfd_boolean coff_write_relocs
420 static bfd_boolean coff_set_flags
421 (bfd
*, unsigned int *, unsigned short *);
422 static bfd_boolean coff_set_arch_mach
423 (bfd
*, enum bfd_architecture
, unsigned long) ATTRIBUTE_UNUSED
;
424 static bfd_boolean coff_compute_section_file_positions
426 static bfd_boolean coff_write_object_contents
427 (bfd
*) ATTRIBUTE_UNUSED
;
428 static bfd_boolean coff_set_section_contents
429 (bfd
*, asection
*, const void *, file_ptr
, bfd_size_type
);
430 static bfd_boolean coff_slurp_line_table
432 static bfd_boolean coff_slurp_symbol_table
434 static enum coff_symbol_classification coff_classify_symbol
435 (bfd
*, struct internal_syment
*);
436 static bfd_boolean coff_slurp_reloc_table
437 (bfd
*, asection
*, asymbol
**);
438 static long coff_canonicalize_reloc
439 (bfd
*, asection
*, arelent
**, asymbol
**);
440 #ifndef coff_mkobject_hook
441 static void * coff_mkobject_hook
442 (bfd
*, void *, void *);
445 static flagword handle_COMDAT
446 (bfd
*, flagword
, void *, const char *, asection
*);
448 #ifdef COFF_IMAGE_WITH_PE
449 static bfd_boolean coff_read_word
450 (bfd
*, unsigned int *);
451 static unsigned int coff_compute_checksum
453 static bfd_boolean coff_apply_checksum
457 static bfd_boolean ticoff0_bad_format_hook
459 static bfd_boolean ticoff1_bad_format_hook
463 /* void warning(); */
465 #if defined (COFF_LONG_SECTION_NAMES)
467 bfd_coff_set_long_section_names_allowed (bfd
*abfd
, int enable
)
469 coff_backend_info (abfd
)->_bfd_coff_long_section_names
= enable
;
472 #else /* !defined (COFF_LONG_SECTION_NAMES) */
474 bfd_coff_set_long_section_names_disallowed (bfd
*abfd
, int enable
)
480 #endif /* defined (COFF_LONG_SECTION_NAMES) */
482 /* Return a word with STYP_* (scnhdr.s_flags) flags set to represent
483 the incoming SEC_* flags. The inverse of this function is
484 styp_to_sec_flags(). NOTE: If you add to/change this routine, you
485 should probably mirror the changes in styp_to_sec_flags(). */
489 /* Macros for setting debugging flags. */
492 #define STYP_XCOFF_DEBUG STYP_DEBUG
494 #define STYP_XCOFF_DEBUG STYP_INFO
497 #ifdef COFF_ALIGN_IN_S_FLAGS
498 #define STYP_DEBUG_INFO STYP_DSECT
500 #define STYP_DEBUG_INFO STYP_INFO
504 sec_to_styp_flags (const char *sec_name
, flagword sec_flags
)
508 if (!strcmp (sec_name
, _TEXT
))
510 styp_flags
= STYP_TEXT
;
512 else if (!strcmp (sec_name
, _DATA
))
514 styp_flags
= STYP_DATA
;
516 else if (!strcmp (sec_name
, _BSS
))
518 styp_flags
= STYP_BSS
;
521 else if (!strcmp (sec_name
, _COMMENT
))
523 styp_flags
= STYP_INFO
;
524 #endif /* _COMMENT */
527 else if (!strcmp (sec_name
, _LIB
))
529 styp_flags
= STYP_LIB
;
533 else if (!strcmp (sec_name
, _LIT
))
535 styp_flags
= STYP_LIT
;
538 else if (CONST_STRNEQ (sec_name
, DOT_DEBUG
)
539 || CONST_STRNEQ (sec_name
, DOT_ZDEBUG
))
541 /* Handle the XCOFF debug section and DWARF2 debug sections. */
543 styp_flags
= STYP_XCOFF_DEBUG
;
545 styp_flags
= STYP_DEBUG_INFO
;
547 else if (CONST_STRNEQ (sec_name
, ".stab"))
549 styp_flags
= STYP_DEBUG_INFO
;
551 #ifdef COFF_LONG_SECTION_NAMES
552 else if (CONST_STRNEQ (sec_name
, GNU_LINKONCE_WI
)
553 || CONST_STRNEQ (sec_name
, GNU_LINKONCE_WT
))
555 styp_flags
= STYP_DEBUG_INFO
;
559 else if (!strcmp (sec_name
, _PAD
))
561 styp_flags
= STYP_PAD
;
563 else if (!strcmp (sec_name
, _LOADER
))
565 styp_flags
= STYP_LOADER
;
567 else if (!strcmp (sec_name
, _EXCEPT
))
569 styp_flags
= STYP_EXCEPT
;
571 else if (!strcmp (sec_name
, _TYPCHK
))
573 styp_flags
= STYP_TYPCHK
;
575 else if (sec_flags
& SEC_DEBUGGING
)
579 for (i
= 0; i
< XCOFF_DWSECT_NBR_NAMES
; i
++)
580 if (!strcmp (sec_name
, xcoff_dwsect_names
[i
].name
))
582 styp_flags
= STYP_DWARF
| xcoff_dwsect_names
[i
].flag
;
587 /* Try and figure out what it should be */
588 else if (sec_flags
& SEC_CODE
)
590 styp_flags
= STYP_TEXT
;
592 else if (sec_flags
& SEC_DATA
)
594 styp_flags
= STYP_DATA
;
596 else if (sec_flags
& SEC_READONLY
)
598 #ifdef STYP_LIT /* 29k readonly text/data section */
599 styp_flags
= STYP_LIT
;
601 styp_flags
= STYP_TEXT
;
602 #endif /* STYP_LIT */
604 else if (sec_flags
& SEC_LOAD
)
606 styp_flags
= STYP_TEXT
;
608 else if (sec_flags
& SEC_ALLOC
)
610 styp_flags
= STYP_BSS
;
614 if (sec_flags
& SEC_TIC54X_CLINK
)
615 styp_flags
|= STYP_CLINK
;
619 if (sec_flags
& SEC_TIC54X_BLOCK
)
620 styp_flags
|= STYP_BLOCK
;
624 if ((sec_flags
& (SEC_NEVER_LOAD
| SEC_COFF_SHARED_LIBRARY
)) != 0)
625 styp_flags
|= STYP_NOLOAD
;
631 #else /* COFF_WITH_PE */
633 /* The PE version; see above for the general comments. The non-PE
634 case seems to be more guessing, and breaks PE format; specifically,
635 .rdata is readonly, but it sure ain't text. Really, all this
636 should be set up properly in gas (or whatever assembler is in use),
637 and honor whatever objcopy/strip, etc. sent us as input. */
640 sec_to_styp_flags (const char *sec_name
, flagword sec_flags
)
643 bfd_boolean is_dbg
= FALSE
;
645 if (CONST_STRNEQ (sec_name
, DOT_DEBUG
)
646 || CONST_STRNEQ (sec_name
, DOT_ZDEBUG
)
647 #ifdef COFF_LONG_SECTION_NAMES
648 || CONST_STRNEQ (sec_name
, GNU_LINKONCE_WI
)
649 || CONST_STRNEQ (sec_name
, GNU_LINKONCE_WT
)
651 || CONST_STRNEQ (sec_name
, ".stab"))
654 /* caution: there are at least three groups of symbols that have
655 very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*.
656 SEC_* are the BFD internal flags, used for generic BFD
657 information. STYP_* are the COFF section flags which appear in
658 COFF files. IMAGE_SCN_* are the PE section flags which appear in
659 PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap,
660 but there are more IMAGE_SCN_* flags. */
662 /* FIXME: There is no gas syntax to specify the debug section flag. */
665 sec_flags
&= (SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
666 | SEC_LINK_DUPLICATES_SAME_CONTENTS
667 | SEC_LINK_DUPLICATES_SAME_SIZE
);
668 sec_flags
|= SEC_DEBUGGING
| SEC_READONLY
;
674 if ((sec_flags
& SEC_CODE
) != 0)
675 styp_flags
|= IMAGE_SCN_CNT_CODE
;
676 if ((sec_flags
& (SEC_DATA
| SEC_DEBUGGING
)) != 0)
677 styp_flags
|= IMAGE_SCN_CNT_INITIALIZED_DATA
;
678 if ((sec_flags
& SEC_ALLOC
) != 0 && (sec_flags
& SEC_LOAD
) == 0)
679 styp_flags
|= IMAGE_SCN_CNT_UNINITIALIZED_DATA
; /* ==STYP_BSS */
681 /* skip constRUCTOR */
683 if ((sec_flags
& SEC_IS_COMMON
) != 0)
684 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
685 if ((sec_flags
& SEC_DEBUGGING
) != 0)
686 styp_flags
|= IMAGE_SCN_MEM_DISCARDABLE
;
687 if ((sec_flags
& SEC_EXCLUDE
) != 0 && !is_dbg
)
688 styp_flags
|= IMAGE_SCN_LNK_REMOVE
;
689 if ((sec_flags
& SEC_NEVER_LOAD
) != 0 && !is_dbg
)
690 styp_flags
|= IMAGE_SCN_LNK_REMOVE
;
693 if (sec_flags
& SEC_LINK_ONCE
)
694 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
696 & (SEC_LINK_DUPLICATES_DISCARD
| SEC_LINK_DUPLICATES_SAME_CONTENTS
697 | SEC_LINK_DUPLICATES_SAME_SIZE
)) != 0)
698 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
700 /* skip LINKER_CREATED */
702 if ((sec_flags
& SEC_COFF_NOREAD
) == 0)
703 styp_flags
|= IMAGE_SCN_MEM_READ
; /* Invert NOREAD for read. */
704 if ((sec_flags
& SEC_READONLY
) == 0)
705 styp_flags
|= IMAGE_SCN_MEM_WRITE
; /* Invert READONLY for write. */
706 if (sec_flags
& SEC_CODE
)
707 styp_flags
|= IMAGE_SCN_MEM_EXECUTE
; /* CODE->EXECUTE. */
708 if (sec_flags
& SEC_COFF_SHARED
)
709 styp_flags
|= IMAGE_SCN_MEM_SHARED
; /* Shared remains meaningful. */
714 #endif /* COFF_WITH_PE */
716 /* Return a word with SEC_* flags set to represent the incoming STYP_*
717 flags (from scnhdr.s_flags). The inverse of this function is
718 sec_to_styp_flags(). NOTE: If you add to/change this routine, you
719 should probably mirror the changes in sec_to_styp_flags(). */
724 styp_to_sec_flags (bfd
*abfd
,
727 asection
*section ATTRIBUTE_UNUSED
,
730 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
731 long styp_flags
= internal_s
->s_flags
;
732 flagword sec_flags
= 0;
735 if (styp_flags
& STYP_BLOCK
)
736 sec_flags
|= SEC_TIC54X_BLOCK
;
740 if (styp_flags
& STYP_CLINK
)
741 sec_flags
|= SEC_TIC54X_CLINK
;
745 if (styp_flags
& STYP_NOLOAD
)
746 sec_flags
|= SEC_NEVER_LOAD
;
747 #endif /* STYP_NOLOAD */
749 /* For 386 COFF, at least, an unloadable text or data section is
750 actually a shared library section. */
751 if (styp_flags
& STYP_TEXT
)
753 if (sec_flags
& SEC_NEVER_LOAD
)
754 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
756 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
758 else if (styp_flags
& STYP_DATA
)
760 if (sec_flags
& SEC_NEVER_LOAD
)
761 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
763 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
765 else if (styp_flags
& STYP_BSS
)
767 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
768 if (sec_flags
& SEC_NEVER_LOAD
)
769 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
772 sec_flags
|= SEC_ALLOC
;
774 else if (styp_flags
& STYP_INFO
)
776 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
777 defined. coff_compute_section_file_positions uses
778 COFF_PAGE_SIZE to ensure that the low order bits of the
779 section VMA and the file offset match. If we don't know
780 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
781 and demand page loading of the file will fail. */
782 #if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS)
783 sec_flags
|= SEC_DEBUGGING
;
786 else if (styp_flags
& STYP_PAD
)
789 else if (styp_flags
& STYP_EXCEPT
)
790 sec_flags
|= SEC_LOAD
;
791 else if (styp_flags
& STYP_LOADER
)
792 sec_flags
|= SEC_LOAD
;
793 else if (styp_flags
& STYP_TYPCHK
)
794 sec_flags
|= SEC_LOAD
;
795 else if (styp_flags
& STYP_DWARF
)
796 sec_flags
|= SEC_DEBUGGING
;
798 else if (strcmp (name
, _TEXT
) == 0)
800 if (sec_flags
& SEC_NEVER_LOAD
)
801 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
803 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
805 else if (strcmp (name
, _DATA
) == 0)
807 if (sec_flags
& SEC_NEVER_LOAD
)
808 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
810 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
812 else if (strcmp (name
, _BSS
) == 0)
814 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
815 if (sec_flags
& SEC_NEVER_LOAD
)
816 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
819 sec_flags
|= SEC_ALLOC
;
821 else if (CONST_STRNEQ (name
, DOT_DEBUG
)
822 || CONST_STRNEQ (name
, DOT_ZDEBUG
)
824 || strcmp (name
, _COMMENT
) == 0
826 #ifdef COFF_LONG_SECTION_NAMES
827 || CONST_STRNEQ (name
, GNU_LINKONCE_WI
)
828 || CONST_STRNEQ (name
, GNU_LINKONCE_WT
)
830 || CONST_STRNEQ (name
, ".stab"))
832 #ifdef COFF_PAGE_SIZE
833 sec_flags
|= SEC_DEBUGGING
;
837 else if (strcmp (name
, _LIB
) == 0)
841 else if (strcmp (name
, _LIT
) == 0)
842 sec_flags
= SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
;
845 sec_flags
|= SEC_ALLOC
| SEC_LOAD
;
847 #ifdef STYP_LIT /* A29k readonly text/data section type. */
848 if ((styp_flags
& STYP_LIT
) == STYP_LIT
)
849 sec_flags
= (SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
);
850 #endif /* STYP_LIT */
852 #ifdef STYP_OTHER_LOAD /* Other loaded sections. */
853 if (styp_flags
& STYP_OTHER_LOAD
)
854 sec_flags
= (SEC_LOAD
| SEC_ALLOC
);
855 #endif /* STYP_SDATA */
857 if ((bfd_applicable_section_flags (abfd
) & SEC_SMALL_DATA
) != 0
858 && (CONST_STRNEQ (name
, ".sbss")
859 || CONST_STRNEQ (name
, ".sdata")))
860 sec_flags
|= SEC_SMALL_DATA
;
862 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
863 /* As a GNU extension, if the name begins with .gnu.linkonce, we
864 only link a single copy of the section. This is used to support
865 g++. g++ will emit each template expansion in its own section.
866 The symbols will be defined as weak, so that multiple definitions
867 are permitted. The GNU linker extension is to actually discard
868 all but one of the sections. */
869 if (CONST_STRNEQ (name
, ".gnu.linkonce"))
870 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
873 if (flags_ptr
== NULL
)
876 * flags_ptr
= sec_flags
;
880 #else /* COFF_WITH_PE */
883 handle_COMDAT (bfd
* abfd
,
889 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
890 bfd_byte
*esymstart
, *esym
, *esymend
;
892 char *target_name
= NULL
;
894 sec_flags
|= SEC_LINK_ONCE
;
896 /* Unfortunately, the PE format stores essential information in
897 the symbol table, of all places. We need to extract that
898 information now, so that objdump and the linker will know how
899 to handle the section without worrying about the symbols. We
900 can't call slurp_symtab, because the linker doesn't want the
903 /* COMDAT sections are special. The first symbol is the section
904 symbol, which tells what kind of COMDAT section it is. The
905 second symbol is the "comdat symbol" - the one with the
906 unique name. GNU uses the section symbol for the unique
907 name; MS uses ".text" for every comdat section. Sigh. - DJ */
909 /* This is not mirrored in sec_to_styp_flags(), but there
910 doesn't seem to be a need to, either, and it would at best be
913 if (! _bfd_coff_get_external_symbols (abfd
))
916 esymstart
= esym
= (bfd_byte
*) obj_coff_external_syms (abfd
);
917 esymend
= esym
+ obj_raw_syment_count (abfd
) * bfd_coff_symesz (abfd
);
919 while (esym
< esymend
)
921 struct internal_syment isym
;
922 char buf
[SYMNMLEN
+ 1];
925 bfd_coff_swap_sym_in (abfd
, esym
, & isym
);
927 BFD_ASSERT (sizeof (internal_s
->s_name
) <= SYMNMLEN
);
929 if (isym
.n_scnum
== section
->target_index
)
931 /* According to the MSVC documentation, the first
932 TWO entries with the section # are both of
933 interest to us. The first one is the "section
934 symbol" (section name). The second is the comdat
935 symbol name. Here, we've found the first
936 qualifying entry; we distinguish it from the
937 second with a state flag.
939 In the case of gas-generated (at least until that
940 is fixed) .o files, it isn't necessarily the
941 second one. It may be some other later symbol.
943 Since gas also doesn't follow MS conventions and
944 emits the section similar to .text$<name>, where
945 <something> is the name we're looking for, we
946 distinguish the two as follows:
948 If the section name is simply a section name (no
949 $) we presume it's MS-generated, and look at
950 precisely the second symbol for the comdat name.
951 If the section name has a $, we assume it's
952 gas-generated, and look for <something> (whatever
953 follows the $) as the comdat symbol. */
955 /* All 3 branches use this. */
956 symname
= _bfd_coff_internal_syment_name (abfd
, &isym
, buf
);
958 /* PR 17512 file: 078-11867-0.004 */
961 _bfd_error_handler (_("%pB: unable to load COMDAT section name"),
970 /* The first time we've seen the symbol. */
971 union internal_auxent aux
;
973 /* If it isn't the stuff we're expecting, die;
974 The MS documentation is vague, but it
975 appears that the second entry serves BOTH
976 as the comdat symbol and the defining
977 symbol record (either C_STAT or C_EXT,
978 possibly with an aux entry with debug
979 information if it's a function.) It
980 appears the only way to find the second one
981 is to count. (On Intel, they appear to be
982 adjacent, but on Alpha, they have been
985 Here, we think we've found the first one,
986 but there's some checking we can do to be
989 if (! ((isym
.n_sclass
== C_STAT
990 || isym
.n_sclass
== C_EXT
)
991 && BTYPE (isym
.n_type
) == T_NULL
992 && isym
.n_value
== 0))
994 /* Malformed input files can trigger this test.
996 _bfd_error_handler (_("%pB: error: unexpected symbol '%s' in COMDAT section"),
1001 /* FIXME LATER: MSVC generates section names
1002 like .text for comdats. Gas generates
1003 names like .text$foo__Fv (in the case of a
1004 function). See comment above for more. */
1006 if (isym
.n_sclass
== C_STAT
&& strcmp (name
, symname
) != 0)
1007 /* xgettext:c-format */
1008 _bfd_error_handler (_("%pB: warning: COMDAT symbol '%s'"
1009 " does not match section name '%s'"),
1010 abfd
, symname
, name
);
1014 /* PR 17512: file: e2cfe54f. */
1015 if (esym
+ bfd_coff_symesz (abfd
) >= esymend
)
1017 /* xgettext:c-format */
1018 _bfd_error_handler (_("%pB: warning: no symbol for"
1019 " section '%s' found"),
1023 /* This is the section symbol. */
1024 bfd_coff_swap_aux_in (abfd
, (esym
+ bfd_coff_symesz (abfd
)),
1025 isym
.n_type
, isym
.n_sclass
,
1026 0, isym
.n_numaux
, & aux
);
1028 target_name
= strchr (name
, '$');
1029 if (target_name
!= NULL
)
1037 /* FIXME: Microsoft uses NODUPLICATES and
1038 ASSOCIATIVE, but gnu uses ANY and
1039 SAME_SIZE. Unfortunately, gnu doesn't do
1040 the comdat symbols right. So, until we can
1041 fix it to do the right thing, we are
1042 temporarily disabling comdats for the MS
1043 types (they're used in DLLs and C++, but we
1044 don't support *their* C++ libraries anyway
1047 /* Cygwin does not follow the MS style, and
1048 uses ANY and SAME_SIZE where NODUPLICATES
1049 and ASSOCIATIVE should be used. For
1050 Interix, we just do the right thing up
1053 switch (aux
.x_scn
.x_comdat
)
1055 case IMAGE_COMDAT_SELECT_NODUPLICATES
:
1056 #ifdef STRICT_PE_FORMAT
1057 sec_flags
|= SEC_LINK_DUPLICATES_ONE_ONLY
;
1059 sec_flags
&= ~SEC_LINK_ONCE
;
1063 case IMAGE_COMDAT_SELECT_ANY
:
1064 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1067 case IMAGE_COMDAT_SELECT_SAME_SIZE
:
1068 sec_flags
|= SEC_LINK_DUPLICATES_SAME_SIZE
;
1071 case IMAGE_COMDAT_SELECT_EXACT_MATCH
:
1072 /* Not yet fully implemented ??? */
1073 sec_flags
|= SEC_LINK_DUPLICATES_SAME_CONTENTS
;
1076 /* debug$S gets this case; other
1079 /* There may be no symbol... we'll search
1080 the whole table... Is this the right
1081 place to play this game? Or should we do
1082 it when reading it in. */
1083 case IMAGE_COMDAT_SELECT_ASSOCIATIVE
:
1084 #ifdef STRICT_PE_FORMAT
1085 /* FIXME: This is not currently implemented. */
1086 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1088 sec_flags
&= ~SEC_LINK_ONCE
;
1092 default: /* 0 means "no symbol" */
1093 /* debug$F gets this case; other
1095 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1102 /* Gas mode: the first matching on partial name. */
1104 #ifndef TARGET_UNDERSCORE
1105 #define TARGET_UNDERSCORE 0
1107 /* Is this the name we're looking for ? */
1108 if (strcmp (target_name
,
1109 symname
+ (TARGET_UNDERSCORE
? 1 : 0)) != 0)
1111 /* Not the name we're looking for */
1112 esym
+= (isym
.n_numaux
+ 1) * bfd_coff_symesz (abfd
);
1117 /* MSVC mode: the lexically second symbol (or
1118 drop through from the above). */
1123 /* This must the second symbol with the
1124 section #. It is the actual symbol name.
1125 Intel puts the two adjacent, but Alpha (at
1126 least) spreads them out. */
1128 amt
= sizeof (struct coff_comdat_info
);
1129 coff_section_data (abfd
, section
)->comdat
1130 = (struct coff_comdat_info
*) bfd_alloc (abfd
, amt
);
1131 if (coff_section_data (abfd
, section
)->comdat
== NULL
)
1134 coff_section_data (abfd
, section
)->comdat
->symbol
=
1135 (esym
- esymstart
) / bfd_coff_symesz (abfd
);
1137 amt
= strlen (symname
) + 1;
1138 newname
= (char *) bfd_alloc (abfd
, amt
);
1139 if (newname
== NULL
)
1142 strcpy (newname
, symname
);
1143 coff_section_data (abfd
, section
)->comdat
->name
1151 esym
+= (isym
.n_numaux
+ 1) * bfd_coff_symesz (abfd
);
1159 /* The PE version; see above for the general comments.
1161 Since to set the SEC_LINK_ONCE and associated flags, we have to
1162 look at the symbol table anyway, we return the symbol table index
1163 of the symbol being used as the COMDAT symbol. This is admittedly
1164 ugly, but there's really nowhere else that we have access to the
1165 required information. FIXME: Is the COMDAT symbol index used for
1166 any purpose other than objdump? */
1169 styp_to_sec_flags (bfd
*abfd
,
1173 flagword
*flags_ptr
)
1175 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
1176 unsigned long styp_flags
= internal_s
->s_flags
;
1178 bfd_boolean result
= TRUE
;
1179 bfd_boolean is_dbg
= FALSE
;
1181 if (CONST_STRNEQ (name
, DOT_DEBUG
)
1182 || CONST_STRNEQ (name
, DOT_ZDEBUG
)
1183 #ifdef COFF_LONG_SECTION_NAMES
1184 || CONST_STRNEQ (name
, GNU_LINKONCE_WI
)
1185 || CONST_STRNEQ (name
, GNU_LINKONCE_WT
)
1186 /* FIXME: These definitions ought to be in a header file. */
1187 #define GNU_DEBUGLINK ".gnu_debuglink"
1188 #define GNU_DEBUGALTLINK ".gnu_debugaltlink"
1189 || CONST_STRNEQ (name
, GNU_DEBUGLINK
)
1190 || CONST_STRNEQ (name
, GNU_DEBUGALTLINK
)
1192 || CONST_STRNEQ (name
, ".stab"))
1194 /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */
1195 sec_flags
= SEC_READONLY
;
1197 /* If section disallows read, then set the NOREAD flag. */
1198 if ((styp_flags
& IMAGE_SCN_MEM_READ
) == 0)
1199 sec_flags
|= SEC_COFF_NOREAD
;
1201 /* Process each flag bit in styp_flags in turn. */
1204 unsigned long flag
= styp_flags
& - styp_flags
;
1205 char * unhandled
= NULL
;
1207 styp_flags
&= ~ flag
;
1209 /* We infer from the distinct read/write/execute bits the settings
1210 of some of the bfd flags; the actual values, should we need them,
1211 are also in pei_section_data (abfd, section)->pe_flags. */
1216 unhandled
= "STYP_DSECT";
1219 unhandled
= "STYP_GROUP";
1222 unhandled
= "STYP_COPY";
1225 unhandled
= "STYP_OVER";
1227 #ifdef SEC_NEVER_LOAD
1229 sec_flags
|= SEC_NEVER_LOAD
;
1232 case IMAGE_SCN_MEM_READ
:
1233 sec_flags
&= ~SEC_COFF_NOREAD
;
1235 case IMAGE_SCN_TYPE_NO_PAD
:
1238 case IMAGE_SCN_LNK_OTHER
:
1239 unhandled
= "IMAGE_SCN_LNK_OTHER";
1241 case IMAGE_SCN_MEM_NOT_CACHED
:
1242 unhandled
= "IMAGE_SCN_MEM_NOT_CACHED";
1244 case IMAGE_SCN_MEM_NOT_PAGED
:
1245 /* Generate a warning message rather using the 'unhandled'
1246 variable as this will allow some .sys files generate by
1247 other toolchains to be processed. See bugzilla issue 196. */
1248 /* xgettext:c-format */
1249 _bfd_error_handler (_("%pB: warning: ignoring section flag"
1250 " %s in section %s"),
1251 abfd
, "IMAGE_SCN_MEM_NOT_PAGED", name
);
1253 case IMAGE_SCN_MEM_EXECUTE
:
1254 sec_flags
|= SEC_CODE
;
1256 case IMAGE_SCN_MEM_WRITE
:
1257 sec_flags
&= ~ SEC_READONLY
;
1259 case IMAGE_SCN_MEM_DISCARDABLE
:
1260 /* The MS PE spec says that debug sections are DISCARDABLE,
1261 but the presence of a DISCARDABLE flag does not necessarily
1262 mean that a given section contains debug information. Thus
1263 we only set the SEC_DEBUGGING flag on sections that we
1264 recognise as containing debug information. */
1267 || strcmp (name
, _COMMENT
) == 0
1271 sec_flags
|= SEC_DEBUGGING
| SEC_READONLY
;
1274 case IMAGE_SCN_MEM_SHARED
:
1275 sec_flags
|= SEC_COFF_SHARED
;
1277 case IMAGE_SCN_LNK_REMOVE
:
1279 sec_flags
|= SEC_EXCLUDE
;
1281 case IMAGE_SCN_CNT_CODE
:
1282 sec_flags
|= SEC_CODE
| SEC_ALLOC
| SEC_LOAD
;
1284 case IMAGE_SCN_CNT_INITIALIZED_DATA
:
1286 sec_flags
|= SEC_DEBUGGING
;
1288 sec_flags
|= SEC_DATA
| SEC_ALLOC
| SEC_LOAD
;
1290 case IMAGE_SCN_CNT_UNINITIALIZED_DATA
:
1291 sec_flags
|= SEC_ALLOC
;
1293 case IMAGE_SCN_LNK_INFO
:
1294 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
1295 defined. coff_compute_section_file_positions uses
1296 COFF_PAGE_SIZE to ensure that the low order bits of the
1297 section VMA and the file offset match. If we don't know
1298 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
1299 and demand page loading of the file will fail. */
1300 #ifdef COFF_PAGE_SIZE
1301 sec_flags
|= SEC_DEBUGGING
;
1304 case IMAGE_SCN_LNK_COMDAT
:
1305 /* COMDAT gets very special treatment. */
1306 sec_flags
= handle_COMDAT (abfd
, sec_flags
, hdr
, name
, section
);
1309 /* Silently ignore for now. */
1313 /* If the section flag was not handled, report it here. */
1314 if (unhandled
!= NULL
)
1317 /* xgettext:c-format */
1318 (_("%pB (%s): section flag %s (%#lx) ignored"),
1319 abfd
, name
, unhandled
, flag
);
1324 if ((bfd_applicable_section_flags (abfd
) & SEC_SMALL_DATA
) != 0
1325 && (CONST_STRNEQ (name
, ".sbss")
1326 || CONST_STRNEQ (name
, ".sdata")))
1327 sec_flags
|= SEC_SMALL_DATA
;
1329 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
1330 /* As a GNU extension, if the name begins with .gnu.linkonce, we
1331 only link a single copy of the section. This is used to support
1332 g++. g++ will emit each template expansion in its own section.
1333 The symbols will be defined as weak, so that multiple definitions
1334 are permitted. The GNU linker extension is to actually discard
1335 all but one of the sections. */
1336 if (CONST_STRNEQ (name
, ".gnu.linkonce"))
1337 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
1341 * flags_ptr
= sec_flags
;
1346 #endif /* COFF_WITH_PE */
1348 #define get_index(symbol) ((symbol)->udata.i)
1352 bfd_coff_backend_data
1356 .{* COFF symbol classifications. *}
1358 .enum coff_symbol_classification
1360 . {* Global symbol. *}
1361 . COFF_SYMBOL_GLOBAL,
1362 . {* Common symbol. *}
1363 . COFF_SYMBOL_COMMON,
1364 . {* Undefined symbol. *}
1365 . COFF_SYMBOL_UNDEFINED,
1366 . {* Local symbol. *}
1367 . COFF_SYMBOL_LOCAL,
1368 . {* PE section symbol. *}
1369 . COFF_SYMBOL_PE_SECTION
1372 .typedef asection * (*coff_gc_mark_hook_fn)
1373 . (asection *, struct bfd_link_info *, struct internal_reloc *,
1374 . struct coff_link_hash_entry *, struct internal_syment *);
1376 Special entry points for gdb to swap in coff symbol table parts:
1379 . void (*_bfd_coff_swap_aux_in)
1380 . (bfd *, void *, int, int, int, int, void *);
1382 . void (*_bfd_coff_swap_sym_in)
1383 . (bfd *, void *, void *);
1385 . void (*_bfd_coff_swap_lineno_in)
1386 . (bfd *, void *, void *);
1388 . unsigned int (*_bfd_coff_swap_aux_out)
1389 . (bfd *, void *, int, int, int, int, void *);
1391 . unsigned int (*_bfd_coff_swap_sym_out)
1392 . (bfd *, void *, void *);
1394 . unsigned int (*_bfd_coff_swap_lineno_out)
1395 . (bfd *, void *, void *);
1397 . unsigned int (*_bfd_coff_swap_reloc_out)
1398 . (bfd *, void *, void *);
1400 . unsigned int (*_bfd_coff_swap_filehdr_out)
1401 . (bfd *, void *, void *);
1403 . unsigned int (*_bfd_coff_swap_aouthdr_out)
1404 . (bfd *, void *, void *);
1406 . unsigned int (*_bfd_coff_swap_scnhdr_out)
1407 . (bfd *, void *, void *);
1409 . unsigned int _bfd_filhsz;
1410 . unsigned int _bfd_aoutsz;
1411 . unsigned int _bfd_scnhsz;
1412 . unsigned int _bfd_symesz;
1413 . unsigned int _bfd_auxesz;
1414 . unsigned int _bfd_relsz;
1415 . unsigned int _bfd_linesz;
1416 . unsigned int _bfd_filnmlen;
1417 . bfd_boolean _bfd_coff_long_filenames;
1419 . bfd_boolean _bfd_coff_long_section_names;
1420 . bfd_boolean (*_bfd_coff_set_long_section_names)
1423 . unsigned int _bfd_coff_default_section_alignment_power;
1424 . bfd_boolean _bfd_coff_force_symnames_in_strings;
1425 . unsigned int _bfd_coff_debug_string_prefix_length;
1426 . unsigned int _bfd_coff_max_nscns;
1428 . void (*_bfd_coff_swap_filehdr_in)
1429 . (bfd *, void *, void *);
1431 . void (*_bfd_coff_swap_aouthdr_in)
1432 . (bfd *, void *, void *);
1434 . void (*_bfd_coff_swap_scnhdr_in)
1435 . (bfd *, void *, void *);
1437 . void (*_bfd_coff_swap_reloc_in)
1438 . (bfd *abfd, void *, void *);
1440 . bfd_boolean (*_bfd_coff_bad_format_hook)
1443 . bfd_boolean (*_bfd_coff_set_arch_mach_hook)
1446 . void * (*_bfd_coff_mkobject_hook)
1447 . (bfd *, void *, void *);
1449 . bfd_boolean (*_bfd_styp_to_sec_flags_hook)
1450 . (bfd *, void *, const char *, asection *, flagword *);
1452 . void (*_bfd_set_alignment_hook)
1453 . (bfd *, asection *, void *);
1455 . bfd_boolean (*_bfd_coff_slurp_symbol_table)
1458 . bfd_boolean (*_bfd_coff_symname_in_debug)
1459 . (bfd *, struct internal_syment *);
1461 . bfd_boolean (*_bfd_coff_pointerize_aux_hook)
1462 . (bfd *, combined_entry_type *, combined_entry_type *,
1463 . unsigned int, combined_entry_type *);
1465 . bfd_boolean (*_bfd_coff_print_aux)
1466 . (bfd *, FILE *, combined_entry_type *, combined_entry_type *,
1467 . combined_entry_type *, unsigned int);
1469 . void (*_bfd_coff_reloc16_extra_cases)
1470 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
1471 . bfd_byte *, unsigned int *, unsigned int *);
1473 . int (*_bfd_coff_reloc16_estimate)
1474 . (bfd *, asection *, arelent *, unsigned int,
1475 . struct bfd_link_info *);
1477 . enum coff_symbol_classification (*_bfd_coff_classify_symbol)
1478 . (bfd *, struct internal_syment *);
1480 . bfd_boolean (*_bfd_coff_compute_section_file_positions)
1483 . bfd_boolean (*_bfd_coff_start_final_link)
1484 . (bfd *, struct bfd_link_info *);
1486 . bfd_boolean (*_bfd_coff_relocate_section)
1487 . (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
1488 . struct internal_reloc *, struct internal_syment *, asection **);
1490 . reloc_howto_type *(*_bfd_coff_rtype_to_howto)
1491 . (bfd *, asection *, struct internal_reloc *,
1492 . struct coff_link_hash_entry *, struct internal_syment *, bfd_vma *);
1494 . bfd_boolean (*_bfd_coff_adjust_symndx)
1495 . (bfd *, struct bfd_link_info *, bfd *, asection *,
1496 . struct internal_reloc *, bfd_boolean *);
1498 . bfd_boolean (*_bfd_coff_link_add_one_symbol)
1499 . (struct bfd_link_info *, bfd *, const char *, flagword,
1500 . asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
1501 . struct bfd_link_hash_entry **);
1503 . bfd_boolean (*_bfd_coff_link_output_has_begun)
1504 . (bfd *, struct coff_final_link_info *);
1506 . bfd_boolean (*_bfd_coff_final_link_postscript)
1507 . (bfd *, struct coff_final_link_info *);
1509 . bfd_boolean (*_bfd_coff_print_pdata)
1512 .} bfd_coff_backend_data;
1514 .#define coff_backend_info(abfd) \
1515 . ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
1517 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
1518 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
1520 .#define bfd_coff_swap_sym_in(a,e,i) \
1521 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
1523 .#define bfd_coff_swap_lineno_in(a,e,i) \
1524 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
1526 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
1527 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
1529 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
1530 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
1532 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
1533 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
1535 .#define bfd_coff_swap_sym_out(abfd, i,o) \
1536 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
1538 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
1539 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
1541 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
1542 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
1544 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
1545 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
1547 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1548 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1549 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1550 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1551 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1552 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1553 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
1554 .#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
1555 .#define bfd_coff_long_filenames(abfd) \
1556 . (coff_backend_info (abfd)->_bfd_coff_long_filenames)
1557 .#define bfd_coff_long_section_names(abfd) \
1558 . (coff_backend_info (abfd)->_bfd_coff_long_section_names)
1559 .#define bfd_coff_set_long_section_names(abfd, enable) \
1560 . ((coff_backend_info (abfd)->_bfd_coff_set_long_section_names) (abfd, enable))
1561 .#define bfd_coff_default_section_alignment_power(abfd) \
1562 . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
1563 .#define bfd_coff_max_nscns(abfd) \
1564 . (coff_backend_info (abfd)->_bfd_coff_max_nscns)
1566 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
1567 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
1569 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
1570 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
1572 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
1573 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
1575 .#define bfd_coff_swap_reloc_in(abfd, i, o) \
1576 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
1578 .#define bfd_coff_bad_format_hook(abfd, filehdr) \
1579 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
1581 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
1582 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
1583 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
1584 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\
1585 . (abfd, filehdr, aouthdr))
1587 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
1588 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1589 . (abfd, scnhdr, name, section, flags_ptr))
1591 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
1592 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
1594 .#define bfd_coff_slurp_symbol_table(abfd)\
1595 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
1597 .#define bfd_coff_symname_in_debug(abfd, sym)\
1598 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
1600 .#define bfd_coff_force_symnames_in_strings(abfd)\
1601 . (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
1603 .#define bfd_coff_debug_string_prefix_length(abfd)\
1604 . (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
1606 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
1607 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1608 . (abfd, file, base, symbol, aux, indaux))
1610 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\
1611 . reloc, data, src_ptr, dst_ptr)\
1612 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1613 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
1615 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
1616 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1617 . (abfd, section, reloc, shrink, link_info))
1619 .#define bfd_coff_classify_symbol(abfd, sym)\
1620 . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1623 .#define bfd_coff_compute_section_file_positions(abfd)\
1624 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1627 .#define bfd_coff_start_final_link(obfd, info)\
1628 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1630 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
1631 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1632 . (obfd, info, ibfd, o, con, rel, isyms, secs))
1633 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
1634 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1635 . (abfd, sec, rel, h, sym, addendp))
1636 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
1637 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1638 . (obfd, info, ibfd, sec, rel, adjustedp))
1639 .#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\
1640 . value, string, cp, coll, hashp)\
1641 . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1642 . (info, abfd, name, flags, section, value, string, cp, coll, hashp))
1644 .#define bfd_coff_link_output_has_begun(a,p) \
1645 . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a, p))
1646 .#define bfd_coff_final_link_postscript(a,p) \
1647 . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a, p))
1649 .#define bfd_coff_have_print_pdata(a) \
1650 . (coff_backend_info (a)->_bfd_coff_print_pdata)
1651 .#define bfd_coff_print_pdata(a,p) \
1652 . ((coff_backend_info (a)->_bfd_coff_print_pdata) (a, p))
1654 .{* Macro: Returns true if the bfd is a PE executable as opposed to a
1655 . PE object file. *}
1656 .#define bfd_pei_p(abfd) \
1657 . (CONST_STRNEQ ((abfd)->xvec->name, "pei-"))
1660 /* See whether the magic number matches. */
1663 coff_bad_format_hook (bfd
* abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1665 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1667 if (BADMAG (*internal_f
))
1675 ticoff0_bad_format_hook (bfd
*abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1677 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1679 if (COFF0_BADMAG (*internal_f
))
1688 ticoff1_bad_format_hook (bfd
*abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1690 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1692 if (COFF1_BADMAG (*internal_f
))
1699 /* Check whether this section uses an alignment other than the
1703 coff_set_custom_section_alignment (bfd
*abfd ATTRIBUTE_UNUSED
,
1705 const struct coff_section_alignment_entry
*alignment_table
,
1706 const unsigned int table_size
)
1708 const unsigned int default_alignment
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1711 for (i
= 0; i
< table_size
; ++i
)
1713 const char *secname
= bfd_section_name (section
);
1715 if (alignment_table
[i
].comparison_length
== (unsigned int) -1
1716 ? strcmp (alignment_table
[i
].name
, secname
) == 0
1717 : strncmp (alignment_table
[i
].name
, secname
,
1718 alignment_table
[i
].comparison_length
) == 0)
1721 if (i
>= table_size
)
1724 if (alignment_table
[i
].default_alignment_min
!= COFF_ALIGNMENT_FIELD_EMPTY
1725 && default_alignment
< alignment_table
[i
].default_alignment_min
)
1728 if (alignment_table
[i
].default_alignment_max
!= COFF_ALIGNMENT_FIELD_EMPTY
1729 #if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0
1730 && default_alignment
> alignment_table
[i
].default_alignment_max
1735 section
->alignment_power
= alignment_table
[i
].alignment_power
;
1738 /* Custom section alignment records. */
1740 static const struct coff_section_alignment_entry
1741 coff_section_alignment_table
[] =
1743 #ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1744 COFF_SECTION_ALIGNMENT_ENTRIES
,
1746 /* There must not be any gaps between .stabstr sections. */
1747 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1748 1, COFF_ALIGNMENT_FIELD_EMPTY
, 0 },
1749 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1750 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1751 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1752 /* Similarly for the .ctors and .dtors sections. */
1753 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1754 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1755 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1756 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 }
1759 static const unsigned int coff_section_alignment_table_size
=
1760 sizeof coff_section_alignment_table
/ sizeof coff_section_alignment_table
[0];
1762 /* Initialize a section structure with information peculiar to this
1763 particular implementation of COFF. */
1766 coff_new_section_hook (bfd
* abfd
, asection
* section
)
1768 combined_entry_type
*native
;
1770 unsigned char sclass
= C_STAT
;
1772 section
->alignment_power
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1775 if (bfd_xcoff_text_align_power (abfd
) != 0
1776 && strcmp (bfd_section_name (section
), ".text") == 0)
1777 section
->alignment_power
= bfd_xcoff_text_align_power (abfd
);
1778 else if (bfd_xcoff_data_align_power (abfd
) != 0
1779 && strcmp (bfd_section_name (section
), ".data") == 0)
1780 section
->alignment_power
= bfd_xcoff_data_align_power (abfd
);
1785 for (i
= 0; i
< XCOFF_DWSECT_NBR_NAMES
; i
++)
1786 if (strcmp (bfd_section_name (section
),
1787 xcoff_dwsect_names
[i
].name
) == 0)
1789 section
->alignment_power
= 0;
1796 /* Set up the section symbol. */
1797 if (!_bfd_generic_new_section_hook (abfd
, section
))
1800 /* Allocate aux records for section symbols, to store size and
1803 @@ The 10 is a guess at a plausible maximum number of aux entries
1804 (but shouldn't be a constant). */
1805 amt
= sizeof (combined_entry_type
) * 10;
1806 native
= (combined_entry_type
*) bfd_zalloc (abfd
, amt
);
1810 /* We don't need to set up n_name, n_value, or n_scnum in the native
1811 symbol information, since they'll be overridden by the BFD symbol
1812 anyhow. However, we do need to set the type and storage class,
1813 in case this symbol winds up getting written out. The value 0
1814 for n_numaux is already correct. */
1816 native
->is_sym
= TRUE
;
1817 native
->u
.syment
.n_type
= T_NULL
;
1818 native
->u
.syment
.n_sclass
= sclass
;
1820 coffsymbol (section
->symbol
)->native
= native
;
1822 coff_set_custom_section_alignment (abfd
, section
,
1823 coff_section_alignment_table
,
1824 coff_section_alignment_table_size
);
1829 #ifdef COFF_ALIGN_IN_SECTION_HEADER
1831 /* Set the alignment of a BFD section. */
1834 coff_set_alignment_hook (bfd
* abfd ATTRIBUTE_UNUSED
,
1838 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1841 #ifdef COFF_DECODE_ALIGNMENT
1842 i
= COFF_DECODE_ALIGNMENT(hdr
->s_flags
);
1844 section
->alignment_power
= i
;
1846 #ifdef coff_set_section_load_page
1847 coff_set_section_load_page (section
, hdr
->s_page
);
1851 #else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1855 coff_set_alignment_hook (bfd
* abfd ATTRIBUTE_UNUSED
,
1859 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1861 unsigned int alignment_power_const
1862 = hdr
->s_flags
& IMAGE_SCN_ALIGN_POWER_BIT_MASK
;
1864 switch (alignment_power_const
)
1866 case IMAGE_SCN_ALIGN_8192BYTES
:
1867 case IMAGE_SCN_ALIGN_4096BYTES
:
1868 case IMAGE_SCN_ALIGN_2048BYTES
:
1869 case IMAGE_SCN_ALIGN_1024BYTES
:
1870 case IMAGE_SCN_ALIGN_512BYTES
:
1871 case IMAGE_SCN_ALIGN_256BYTES
:
1872 case IMAGE_SCN_ALIGN_128BYTES
:
1873 case IMAGE_SCN_ALIGN_64BYTES
:
1874 case IMAGE_SCN_ALIGN_32BYTES
:
1875 case IMAGE_SCN_ALIGN_16BYTES
:
1876 case IMAGE_SCN_ALIGN_8BYTES
:
1877 case IMAGE_SCN_ALIGN_4BYTES
:
1878 case IMAGE_SCN_ALIGN_2BYTES
:
1879 case IMAGE_SCN_ALIGN_1BYTES
:
1880 section
->alignment_power
1881 = IMAGE_SCN_ALIGN_POWER_NUM (alignment_power_const
);
1887 /* In a PE image file, the s_paddr field holds the virtual size of a
1888 section, while the s_size field holds the raw size. We also keep
1889 the original section flag value, since not every bit can be
1890 mapped onto a generic BFD section bit. */
1891 if (coff_section_data (abfd
, section
) == NULL
)
1893 amt
= sizeof (struct coff_section_tdata
);
1894 section
->used_by_bfd
= bfd_zalloc (abfd
, amt
);
1895 if (section
->used_by_bfd
== NULL
)
1896 /* FIXME: Return error. */
1900 if (pei_section_data (abfd
, section
) == NULL
)
1902 amt
= sizeof (struct pei_section_tdata
);
1903 coff_section_data (abfd
, section
)->tdata
= bfd_zalloc (abfd
, amt
);
1904 if (coff_section_data (abfd
, section
)->tdata
== NULL
)
1905 /* FIXME: Return error. */
1908 pei_section_data (abfd
, section
)->virt_size
= hdr
->s_paddr
;
1909 pei_section_data (abfd
, section
)->pe_flags
= hdr
->s_flags
;
1911 section
->lma
= hdr
->s_vaddr
;
1913 /* Check for extended relocs. */
1914 if (hdr
->s_flags
& IMAGE_SCN_LNK_NRELOC_OVFL
)
1916 struct external_reloc dst
;
1917 struct internal_reloc n
;
1918 file_ptr oldpos
= bfd_tell (abfd
);
1919 bfd_size_type relsz
= bfd_coff_relsz (abfd
);
1921 if (bfd_seek (abfd
, (file_ptr
) hdr
->s_relptr
, 0) != 0)
1923 if (bfd_bread (& dst
, relsz
, abfd
) != relsz
)
1926 coff_swap_reloc_in (abfd
, &dst
, &n
);
1927 if (bfd_seek (abfd
, oldpos
, 0) != 0)
1929 section
->reloc_count
= hdr
->s_nreloc
= n
.r_vaddr
- 1;
1930 section
->rel_filepos
+= relsz
;
1932 else if (hdr
->s_nreloc
== 0xffff)
1934 (_("%pB: warning: claims to have 0xffff relocs, without overflow"),
1938 #undef ELIFALIGN_SET
1940 #else /* ! COFF_WITH_PE */
1943 /* We grossly abuse this function to handle XCOFF overflow headers.
1944 When we see one, we correct the reloc and line number counts in the
1945 real header, and remove the section we just created. */
1948 coff_set_alignment_hook (bfd
*abfd
, asection
*section
, void * scnhdr
)
1950 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1953 if ((hdr
->s_flags
& STYP_OVRFLO
) == 0)
1956 real_sec
= coff_section_from_bfd_index (abfd
, (int) hdr
->s_nreloc
);
1957 if (real_sec
== NULL
)
1960 real_sec
->reloc_count
= hdr
->s_paddr
;
1961 real_sec
->lineno_count
= hdr
->s_vaddr
;
1963 if (!bfd_section_removed_from_list (abfd
, section
))
1965 bfd_section_list_remove (abfd
, section
);
1966 --abfd
->section_count
;
1970 #else /* ! RS6000COFF_C */
1971 #if defined (COFF_GO32_EXE) || defined (COFF_GO32)
1974 coff_set_alignment_hook (bfd
* abfd
, asection
* section
, void * scnhdr
)
1976 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1978 /* Check for extended relocs. */
1979 if (hdr
->s_flags
& IMAGE_SCN_LNK_NRELOC_OVFL
)
1981 struct external_reloc dst
;
1982 struct internal_reloc n
;
1983 const file_ptr oldpos
= bfd_tell (abfd
);
1984 const bfd_size_type relsz
= bfd_coff_relsz (abfd
);
1986 if (bfd_seek (abfd
, (file_ptr
) hdr
->s_relptr
, 0) != 0)
1988 if (bfd_bread (& dst
, relsz
, abfd
) != relsz
)
1991 coff_swap_reloc_in (abfd
, &dst
, &n
);
1992 if (bfd_seek (abfd
, oldpos
, 0) != 0)
1994 section
->reloc_count
= hdr
->s_nreloc
= n
.r_vaddr
- 1;
1995 section
->rel_filepos
+= relsz
;
1997 else if (hdr
->s_nreloc
== 0xffff)
1999 (_("%pB: warning: claims to have 0xffff relocs, without overflow"),
2003 #else /* ! COFF_GO32_EXE && ! COFF_GO32 */
2006 coff_set_alignment_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2007 asection
*section ATTRIBUTE_UNUSED
,
2008 void *scnhdr ATTRIBUTE_UNUSED
)
2012 #endif /* ! COFF_GO32_EXE && ! COFF_GO32 */
2013 #endif /* ! RS6000COFF_C */
2014 #endif /* ! COFF_WITH_PE */
2015 #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
2017 #ifndef coff_mkobject
2020 coff_mkobject (bfd
* abfd
)
2022 coff_data_type
*coff
;
2023 size_t amt
= sizeof (coff_data_type
);
2025 abfd
->tdata
.coff_obj_data
= bfd_zalloc (abfd
, amt
);
2026 if (abfd
->tdata
.coff_obj_data
== NULL
)
2028 coff
= coff_data (abfd
);
2029 coff
->symbols
= NULL
;
2030 coff
->conversion_table
= NULL
;
2031 coff
->raw_syments
= NULL
;
2032 coff
->relocbase
= 0;
2033 coff
->local_toc_sym_map
= 0;
2035 /* make_abs_section(abfd);*/
2041 /* Create the COFF backend specific information. */
2043 #ifndef coff_mkobject_hook
2045 coff_mkobject_hook (bfd
* abfd
,
2047 void * aouthdr ATTRIBUTE_UNUSED
)
2049 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
2050 coff_data_type
*coff
;
2052 if (! coff_mkobject (abfd
))
2055 coff
= coff_data (abfd
);
2057 coff
->sym_filepos
= internal_f
->f_symptr
;
2059 /* These members communicate important constants about the symbol
2060 table to GDB's symbol-reading code. These `constants'
2061 unfortunately vary among coff implementations... */
2062 coff
->local_n_btmask
= N_BTMASK
;
2063 coff
->local_n_btshft
= N_BTSHFT
;
2064 coff
->local_n_tmask
= N_TMASK
;
2065 coff
->local_n_tshift
= N_TSHIFT
;
2066 coff
->local_symesz
= bfd_coff_symesz (abfd
);
2067 coff
->local_auxesz
= bfd_coff_auxesz (abfd
);
2068 coff
->local_linesz
= bfd_coff_linesz (abfd
);
2070 coff
->timestamp
= internal_f
->f_timdat
;
2072 obj_raw_syment_count (abfd
) =
2073 obj_conv_table_size (abfd
) =
2074 internal_f
->f_nsyms
;
2077 if ((internal_f
->f_flags
& F_SHROBJ
) != 0)
2078 abfd
->flags
|= DYNAMIC
;
2079 if (aouthdr
!= NULL
&& internal_f
->f_opthdr
>= bfd_coff_aoutsz (abfd
))
2081 struct internal_aouthdr
*internal_a
=
2082 (struct internal_aouthdr
*) aouthdr
;
2083 struct xcoff_tdata
*xcoff
;
2085 xcoff
= xcoff_data (abfd
);
2086 # ifdef U803XTOCMAGIC
2087 xcoff
->xcoff64
= internal_f
->f_magic
== U803XTOCMAGIC
;
2091 xcoff
->full_aouthdr
= TRUE
;
2092 xcoff
->toc
= internal_a
->o_toc
;
2093 xcoff
->sntoc
= internal_a
->o_sntoc
;
2094 xcoff
->snentry
= internal_a
->o_snentry
;
2095 bfd_xcoff_text_align_power (abfd
) = internal_a
->o_algntext
;
2096 bfd_xcoff_data_align_power (abfd
) = internal_a
->o_algndata
;
2097 xcoff
->modtype
= internal_a
->o_modtype
;
2098 xcoff
->cputype
= internal_a
->o_cputype
;
2099 xcoff
->maxdata
= internal_a
->o_maxdata
;
2100 xcoff
->maxstack
= internal_a
->o_maxstack
;
2105 /* Set the flags field from the COFF header read in. */
2106 if (! _bfd_coff_arm_set_private_flags (abfd
, internal_f
->f_flags
))
2111 /* FIXME: I'm not sure this is ever executed, since peicode.h
2112 defines coff_mkobject_hook. */
2113 if ((internal_f
->f_flags
& IMAGE_FILE_DEBUG_STRIPPED
) == 0)
2114 abfd
->flags
|= HAS_DEBUG
;
2121 /* Determine the machine architecture and type. FIXME: This is target
2122 dependent because the magic numbers are defined in the target
2123 dependent header files. But there is no particular need for this.
2124 If the magic numbers were moved to a separate file, this function
2125 would be target independent and would also be much more successful
2126 at linking together COFF files for different architectures. */
2129 coff_set_arch_mach_hook (bfd
*abfd
, void * filehdr
)
2131 unsigned long machine
;
2132 enum bfd_architecture arch
;
2133 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
2135 /* Zero selects the default machine for an arch. */
2137 switch (internal_f
->f_magic
)
2142 case I386AIXMAGIC
: /* Danbury PS/2 AIX C Compiler. */
2144 case I386_APPLE_MAGIC
:
2145 case I386_FREEBSD_MAGIC
:
2146 case I386_LINUX_MAGIC
:
2147 case I386_NETBSD_MAGIC
:
2148 arch
= bfd_arch_i386
;
2153 case AMD64_APPLE_MAGIC
:
2154 case AMD64_FREEBSD_MAGIC
:
2155 case AMD64_LINUX_MAGIC
:
2156 case AMD64_NETBSD_MAGIC
:
2157 arch
= bfd_arch_i386
;
2158 machine
= bfd_mach_x86_64
;
2163 arch
= bfd_arch_ia64
;
2170 arch
= bfd_arch_arm
;
2171 machine
= bfd_arm_get_mach_from_notes (abfd
, ARM_NOTE_SECTION
);
2172 if (machine
== bfd_mach_arm_unknown
)
2174 switch (internal_f
->f_flags
& F_ARM_ARCHITECTURE_MASK
)
2176 case F_ARM_2
: machine
= bfd_mach_arm_2
; break;
2177 case F_ARM_2a
: machine
= bfd_mach_arm_2a
; break;
2178 case F_ARM_3
: machine
= bfd_mach_arm_3
; break;
2180 case F_ARM_3M
: machine
= bfd_mach_arm_3M
; break;
2181 case F_ARM_4
: machine
= bfd_mach_arm_4
; break;
2182 case F_ARM_4T
: machine
= bfd_mach_arm_4T
; break;
2183 /* The COFF header does not have enough bits available
2184 to cover all the different ARM architectures. So
2185 we interpret F_ARM_5, the highest flag value to mean
2186 "the highest ARM architecture known to BFD" which is
2187 currently the XScale. */
2188 case F_ARM_5
: machine
= bfd_mach_arm_XScale
; break;
2195 arch
= bfd_arch_z80
;
2196 switch (internal_f
->f_flags
& F_MACHMASK
)
2198 case bfd_mach_z80strict
<< 12:
2199 case bfd_mach_z80
<< 12:
2200 case bfd_mach_z80n
<< 12:
2201 case bfd_mach_z80full
<< 12:
2202 case bfd_mach_r800
<< 12:
2203 case bfd_mach_gbz80
<< 12:
2204 case bfd_mach_z180
<< 12:
2205 case bfd_mach_ez80_z80
<< 12:
2206 case bfd_mach_ez80_adl
<< 12:
2207 machine
= ((unsigned)internal_f
->f_flags
& F_MACHMASK
) >> 12;
2216 arch
= bfd_arch_z8k
;
2217 switch (internal_f
->f_flags
& F_MACHMASK
)
2220 machine
= bfd_mach_z8001
;
2223 machine
= bfd_mach_z8002
;
2243 if (xcoff_data (abfd
)->cputype
!= -1)
2244 cputype
= xcoff_data (abfd
)->cputype
& 0xff;
2247 /* We did not get a value from the a.out header. If the
2248 file has not been stripped, we may be able to get the
2249 architecture information from the first symbol, if it
2250 is a .file symbol. */
2251 if (obj_raw_syment_count (abfd
) == 0)
2256 struct internal_syment sym
;
2257 bfd_size_type amt
= bfd_coff_symesz (abfd
);
2259 if (bfd_seek (abfd
, obj_sym_filepos (abfd
), SEEK_SET
) != 0)
2261 buf
= _bfd_malloc_and_read (abfd
, amt
, amt
);
2264 bfd_coff_swap_sym_in (abfd
, buf
, & sym
);
2265 if (sym
.n_sclass
== C_FILE
)
2266 cputype
= sym
.n_type
& 0xff;
2273 /* FIXME: We don't handle all cases here. */
2278 arch
= bfd_xcoff_architecture (abfd
);
2279 machine
= bfd_xcoff_machine (abfd
);
2283 arch
= bfd_arch_powerpc
;
2284 machine
= bfd_mach_ppc_601
;
2286 case 2: /* 64 bit PowerPC */
2287 arch
= bfd_arch_powerpc
;
2288 machine
= bfd_mach_ppc_620
;
2291 arch
= bfd_arch_powerpc
;
2292 machine
= bfd_mach_ppc
;
2295 arch
= bfd_arch_rs6000
;
2296 machine
= bfd_mach_rs6k
;
2303 #ifdef SH_ARCH_MAGIC_BIG
2304 case SH_ARCH_MAGIC_BIG
:
2305 case SH_ARCH_MAGIC_LITTLE
:
2307 case SH_ARCH_MAGIC_WINCE
:
2313 #ifdef MIPS_ARCH_MAGIC_WINCE
2314 case MIPS_ARCH_MAGIC_WINCE
:
2315 arch
= bfd_arch_mips
;
2321 #ifdef LYNXCOFFMAGIC
2324 arch
= bfd_arch_sparc
;
2330 arch
= bfd_arch_tic30
;
2335 #ifdef TICOFF_TARGET_ARCH
2336 /* This TI COFF section should be used by all new TI COFF v0 targets. */
2338 arch
= TICOFF_TARGET_ARCH
;
2339 machine
= TICOFF_TARGET_MACHINE_GET (internal_f
->f_flags
);
2345 /* This TI COFF section should be used by all new TI COFF v1/2 targets. */
2346 /* TI COFF1 and COFF2 use the target_id field to specify which arch. */
2349 switch (internal_f
->f_target_id
)
2353 arch
= TICOFF_TARGET_ARCH
;
2354 machine
= TICOFF_TARGET_MACHINE_GET (internal_f
->f_flags
);
2358 arch
= bfd_arch_obscure
;
2360 (_("unrecognized TI COFF target id '0x%x'"),
2361 internal_f
->f_target_id
);
2369 arch
= bfd_arch_mcore
;
2373 default: /* Unreadable input file type. */
2374 arch
= bfd_arch_obscure
;
2378 bfd_default_set_arch_mach (abfd
, arch
, machine
);
2383 symname_in_debug_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2384 struct internal_syment
*sym ATTRIBUTE_UNUSED
)
2386 #ifdef SYMNAME_IN_DEBUG
2387 return SYMNAME_IN_DEBUG (sym
) != 0;
2396 #define FORCE_SYMNAMES_IN_STRINGS
2399 /* Handle the csect auxent of a C_EXT, C_AIX_WEAKEXT or C_HIDEXT symbol. */
2402 coff_pointerize_aux_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2403 combined_entry_type
*table_base
,
2404 combined_entry_type
*symbol
,
2405 unsigned int indaux
,
2406 combined_entry_type
*aux
)
2408 BFD_ASSERT (symbol
->is_sym
);
2409 int n_sclass
= symbol
->u
.syment
.n_sclass
;
2411 if (CSECT_SYM_P (n_sclass
)
2412 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2414 BFD_ASSERT (! aux
->is_sym
);
2415 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) == XTY_LD
)
2417 aux
->u
.auxent
.x_csect
.x_scnlen
.p
=
2418 table_base
+ aux
->u
.auxent
.x_csect
.x_scnlen
.l
;
2419 aux
->fix_scnlen
= 1;
2422 /* Return TRUE to indicate that the caller should not do any
2423 further work on this auxent. */
2427 /* Return FALSE to indicate that this auxent should be handled by
2433 #define coff_pointerize_aux_hook 0
2434 #endif /* ! RS6000COFF_C */
2436 /* Print an aux entry. This returns TRUE if it has printed it. */
2439 coff_print_aux (bfd
*abfd ATTRIBUTE_UNUSED
,
2440 FILE *file ATTRIBUTE_UNUSED
,
2441 combined_entry_type
*table_base ATTRIBUTE_UNUSED
,
2442 combined_entry_type
*symbol ATTRIBUTE_UNUSED
,
2443 combined_entry_type
*aux ATTRIBUTE_UNUSED
,
2444 unsigned int indaux ATTRIBUTE_UNUSED
)
2446 BFD_ASSERT (symbol
->is_sym
);
2447 BFD_ASSERT (! aux
->is_sym
);
2449 if (CSECT_SYM_P (symbol
->u
.syment
.n_sclass
)
2450 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2452 /* This is a csect entry. */
2453 fprintf (file
, "AUX ");
2454 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) != XTY_LD
)
2456 BFD_ASSERT (! aux
->fix_scnlen
);
2457 fprintf (file
, "val %5" BFD_VMA_FMT
"d",
2458 aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2462 fprintf (file
, "indx ");
2463 if (! aux
->fix_scnlen
)
2464 fprintf (file
, "%4" BFD_VMA_FMT
"d",
2465 aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2467 fprintf (file
, "%4ld",
2468 (long) (aux
->u
.auxent
.x_csect
.x_scnlen
.p
- table_base
));
2471 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2472 aux
->u
.auxent
.x_csect
.x_parmhash
,
2473 (unsigned int) aux
->u
.auxent
.x_csect
.x_snhash
,
2474 SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
),
2475 SMTYP_ALIGN (aux
->u
.auxent
.x_csect
.x_smtyp
),
2476 (unsigned int) aux
->u
.auxent
.x_csect
.x_smclas
,
2477 aux
->u
.auxent
.x_csect
.x_stab
,
2478 (unsigned int) aux
->u
.auxent
.x_csect
.x_snstab
);
2483 /* Return FALSE to indicate that no special action was taken. */
2491 To write relocations, the back end steps though the
2492 canonical relocation table and create an
2493 @code{internal_reloc}. The symbol index to use is removed from
2494 the @code{offset} field in the symbol table supplied. The
2495 address comes directly from the sum of the section base
2496 address and the relocation offset; the type is dug directly
2497 from the howto field. Then the @code{internal_reloc} is
2498 swapped into the shape of an @code{external_reloc} and written
2506 /* AUX's ld wants relocations to be sorted. */
2508 compare_arelent_ptr (const void * x
, const void * y
)
2510 const arelent
**a
= (const arelent
**) x
;
2511 const arelent
**b
= (const arelent
**) y
;
2512 bfd_size_type aadr
= (*a
)->address
;
2513 bfd_size_type badr
= (*b
)->address
;
2515 return (aadr
< badr
? -1 : badr
< aadr
? 1 : 0);
2518 #endif /* TARG_AUX */
2521 coff_write_relocs (bfd
* abfd
, int first_undef
)
2525 for (s
= abfd
->sections
; s
!= NULL
; s
= s
->next
)
2528 struct external_reloc dst
;
2535 /* Sort relocations before we write them out. */
2538 amt
= s
->reloc_count
;
2539 amt
*= sizeof (arelent
*);
2540 p
= bfd_malloc (amt
);
2543 if (s
->reloc_count
> 0)
2548 memcpy (p
, s
->orelocation
, (size_t) amt
);
2549 qsort (p
, s
->reloc_count
, sizeof (arelent
*), compare_arelent_ptr
);
2554 if (bfd_seek (abfd
, s
->rel_filepos
, SEEK_SET
) != 0)
2557 #ifdef COFF_WITH_EXTENDED_RELOC_COUNTER
2558 if ((obj_pe (abfd
) || obj_go32 (abfd
)) && s
->reloc_count
>= 0xffff)
2560 /* Encode real count here as first reloc. */
2561 struct internal_reloc n
;
2563 memset (& n
, 0, sizeof (n
));
2564 /* Add one to count *this* reloc (grr). */
2565 n
.r_vaddr
= s
->reloc_count
+ 1;
2566 coff_swap_reloc_out (abfd
, &n
, &dst
);
2567 if (bfd_bwrite (& dst
, (bfd_size_type
) bfd_coff_relsz (abfd
),
2568 abfd
) != bfd_coff_relsz (abfd
))
2573 for (i
= 0; i
< s
->reloc_count
; i
++)
2575 struct internal_reloc n
;
2578 memset (& n
, 0, sizeof (n
));
2580 /* Now we've renumbered the symbols we know where the
2581 undefined symbols live in the table. Check the reloc
2582 entries for symbols who's output bfd isn't the right one.
2583 This is because the symbol was undefined (which means
2584 that all the pointers are never made to point to the same
2585 place). This is a bad thing,'cause the symbols attached
2586 to the output bfd are indexed, so that the relocation
2587 entries know which symbol index they point to. So we
2588 have to look up the output symbol here. */
2590 if (q
->sym_ptr_ptr
[0] != NULL
&& q
->sym_ptr_ptr
[0]->the_bfd
!= abfd
)
2593 const char *sname
= q
->sym_ptr_ptr
[0]->name
;
2594 asymbol
**outsyms
= abfd
->outsymbols
;
2596 for (j
= first_undef
; outsyms
[j
]; j
++)
2598 const char *intable
= outsyms
[j
]->name
;
2600 if (strcmp (intable
, sname
) == 0)
2602 /* Got a hit, so repoint the reloc. */
2603 q
->sym_ptr_ptr
= outsyms
+ j
;
2609 n
.r_vaddr
= q
->address
+ s
->vma
;
2612 /* The 29k const/consth reloc pair is a real kludge. The consth
2613 part doesn't have a symbol; it has an offset. So rebuilt
2615 if (q
->howto
->type
== R_IHCONST
)
2616 n
.r_symndx
= q
->addend
;
2619 if (q
->sym_ptr_ptr
&& q
->sym_ptr_ptr
[0] != NULL
)
2621 #ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P
2622 if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q
, s
))
2624 if ((*q
->sym_ptr_ptr
)->section
== bfd_abs_section_ptr
2625 && ((*q
->sym_ptr_ptr
)->flags
& BSF_SECTION_SYM
) != 0)
2627 /* This is a relocation relative to the absolute symbol. */
2631 n
.r_symndx
= get_index ((*(q
->sym_ptr_ptr
)));
2632 /* Check to see if the symbol reloc points to a symbol
2633 we don't have in our symbol table. */
2634 if (n
.r_symndx
> obj_conv_table_size (abfd
))
2636 bfd_set_error (bfd_error_bad_value
);
2637 /* xgettext:c-format */
2638 _bfd_error_handler (_("%pB: reloc against a non-existent"
2639 " symbol index: %ld"),
2646 #ifdef SWAP_OUT_RELOC_OFFSET
2647 n
.r_offset
= q
->addend
;
2651 /* Work out reloc type from what is required. */
2652 SELECT_RELOC (n
, q
->howto
);
2654 n
.r_type
= q
->howto
->type
;
2656 coff_swap_reloc_out (abfd
, &n
, &dst
);
2658 if (bfd_bwrite (& dst
, (bfd_size_type
) bfd_coff_relsz (abfd
),
2659 abfd
) != bfd_coff_relsz (abfd
))
2671 /* Set flags and magic number of a coff file from architecture and machine
2672 type. Result is TRUE if we can represent the arch&type, FALSE if not. */
2675 coff_set_flags (bfd
* abfd
,
2676 unsigned int *magicp ATTRIBUTE_UNUSED
,
2677 unsigned short *flagsp ATTRIBUTE_UNUSED
)
2679 switch (bfd_get_arch (abfd
))
2684 switch (bfd_get_mach (abfd
))
2686 case bfd_mach_z80strict
:
2689 case bfd_mach_z80full
:
2691 case bfd_mach_gbz80
:
2693 case bfd_mach_ez80_z80
:
2694 case bfd_mach_ez80_adl
:
2695 *flagsp
= bfd_get_mach (abfd
) << 12;
2707 switch (bfd_get_mach (abfd
))
2709 case bfd_mach_z8001
: *flagsp
= F_Z8001
; break;
2710 case bfd_mach_z8002
: *flagsp
= F_Z8002
; break;
2711 default: return FALSE
;
2717 case bfd_arch_tic30
:
2718 *magicp
= TIC30MAGIC
;
2722 #ifdef TICOFF_DEFAULT_MAGIC
2723 case TICOFF_TARGET_ARCH
:
2724 /* If there's no indication of which version we want, use the default. */
2726 *magicp
= TICOFF_DEFAULT_MAGIC
;
2729 /* We may want to output in a different COFF version. */
2730 switch (abfd
->xvec
->name
[4])
2733 *magicp
= TICOFF0MAGIC
;
2736 *magicp
= TICOFF1MAGIC
;
2739 *magicp
= TICOFF2MAGIC
;
2745 TICOFF_TARGET_MACHINE_SET (flagsp
, bfd_get_mach (abfd
));
2752 * magicp
= ARMPEMAGIC
;
2754 * magicp
= ARMMAGIC
;
2757 if (APCS_SET (abfd
))
2759 if (APCS_26_FLAG (abfd
))
2760 * flagsp
|= F_APCS26
;
2762 if (APCS_FLOAT_FLAG (abfd
))
2763 * flagsp
|= F_APCS_FLOAT
;
2765 if (PIC_FLAG (abfd
))
2768 if (INTERWORK_SET (abfd
) && INTERWORK_FLAG (abfd
))
2769 * flagsp
|= F_INTERWORK
;
2770 switch (bfd_get_mach (abfd
))
2772 case bfd_mach_arm_2
: * flagsp
|= F_ARM_2
; break;
2773 case bfd_mach_arm_2a
: * flagsp
|= F_ARM_2a
; break;
2774 case bfd_mach_arm_3
: * flagsp
|= F_ARM_3
; break;
2775 case bfd_mach_arm_3M
: * flagsp
|= F_ARM_3M
; break;
2776 case bfd_mach_arm_4
: * flagsp
|= F_ARM_4
; break;
2777 case bfd_mach_arm_4T
: * flagsp
|= F_ARM_4T
; break;
2778 case bfd_mach_arm_5
: * flagsp
|= F_ARM_5
; break;
2779 /* FIXME: we do not have F_ARM vaues greater than F_ARM_5.
2780 See also the comment in coff_set_arch_mach_hook(). */
2781 case bfd_mach_arm_5T
: * flagsp
|= F_ARM_5
; break;
2782 case bfd_mach_arm_5TE
: * flagsp
|= F_ARM_5
; break;
2783 case bfd_mach_arm_XScale
: * flagsp
|= F_ARM_5
; break;
2788 #if defined(I386MAGIC) || defined(AMD64MAGIC)
2790 #if defined(I386MAGIC)
2791 *magicp
= I386MAGIC
;
2794 /* Just overwrite the usual value if we're doing Lynx. */
2795 *magicp
= LYNXCOFFMAGIC
;
2797 #if defined AMD64MAGIC
2798 *magicp
= AMD64MAGIC
;
2805 *magicp
= IA64MAGIC
;
2809 #ifdef SH_ARCH_MAGIC_BIG
2811 #ifdef COFF_IMAGE_WITH_PE
2812 *magicp
= SH_ARCH_MAGIC_WINCE
;
2814 if (bfd_big_endian (abfd
))
2815 *magicp
= SH_ARCH_MAGIC_BIG
;
2817 *magicp
= SH_ARCH_MAGIC_LITTLE
;
2822 #ifdef MIPS_ARCH_MAGIC_WINCE
2824 *magicp
= MIPS_ARCH_MAGIC_WINCE
;
2829 case bfd_arch_sparc
:
2830 *magicp
= SPARCMAGIC
;
2832 /* Just overwrite the usual value if we're doing Lynx. */
2833 *magicp
= LYNXCOFFMAGIC
;
2839 case bfd_arch_rs6000
:
2840 case bfd_arch_powerpc
:
2841 BFD_ASSERT (bfd_get_flavour (abfd
) == bfd_target_xcoff_flavour
);
2842 *magicp
= bfd_xcoff_magic_number (abfd
);
2847 case bfd_arch_mcore
:
2848 * magicp
= MCOREMAGIC
;
2852 default: /* Unknown architecture. */
2853 /* Fall through to "return FALSE" below, to avoid
2854 "statement never reached" errors on the one below. */
2862 coff_set_arch_mach (bfd
* abfd
,
2863 enum bfd_architecture arch
,
2864 unsigned long machine
)
2867 unsigned short dummy2
;
2869 if (! bfd_default_set_arch_mach (abfd
, arch
, machine
))
2872 if (arch
!= bfd_arch_unknown
2873 && ! coff_set_flags (abfd
, &dummy1
, &dummy2
))
2874 return FALSE
; /* We can't represent this type. */
2876 return TRUE
; /* We're easy... */
2879 #ifdef COFF_IMAGE_WITH_PE
2881 /* This is used to sort sections by VMA, as required by PE image
2885 sort_by_secaddr (const void * arg1
, const void * arg2
)
2887 const asection
*a
= *(const asection
**) arg1
;
2888 const asection
*b
= *(const asection
**) arg2
;
2890 if (a
->vma
< b
->vma
)
2892 else if (a
->vma
> b
->vma
)
2898 #endif /* COFF_IMAGE_WITH_PE */
2900 /* Calculate the file position for each section. */
2902 #define ALIGN_SECTIONS_IN_FILE
2904 #undef ALIGN_SECTIONS_IN_FILE
2908 coff_compute_section_file_positions (bfd
* abfd
)
2911 file_ptr sofar
= bfd_coff_filhsz (abfd
);
2912 bfd_boolean align_adjust
;
2913 unsigned int target_index
;
2914 #ifdef ALIGN_SECTIONS_IN_FILE
2915 asection
*previous
= NULL
;
2919 #ifdef COFF_IMAGE_WITH_PE
2922 if (coff_data (abfd
)->link_info
2923 || (pe_data (abfd
) && pe_data (abfd
)->pe_opthdr
.FileAlignment
))
2925 page_size
= pe_data (abfd
)->pe_opthdr
.FileAlignment
;
2927 /* If no file alignment has been set, default to one.
2928 This repairs 'ld -r' for arm-wince-pe target. */
2932 /* PR 17512: file: 0ac816d3. */
2935 bfd_set_error (bfd_error_file_too_big
);
2937 /* xgettext:c-format */
2938 (_("%pB: page size is too large (0x%x)"), abfd
, page_size
);
2943 page_size
= PE_DEF_FILE_ALIGNMENT
;
2945 #ifdef COFF_PAGE_SIZE
2946 int page_size
= COFF_PAGE_SIZE
;
2951 /* On XCOFF, if we have symbols, set up the .debug section. */
2952 if (bfd_get_symcount (abfd
) > 0)
2955 bfd_size_type i
, symcount
;
2959 symcount
= bfd_get_symcount (abfd
);
2960 for (symp
= abfd
->outsymbols
, i
= 0; i
< symcount
; symp
++, i
++)
2962 coff_symbol_type
*cf
;
2964 cf
= coff_symbol_from (*symp
);
2966 && cf
->native
!= NULL
2967 && cf
->native
->is_sym
2968 && SYMNAME_IN_DEBUG (&cf
->native
->u
.syment
))
2972 len
= strlen (bfd_asymbol_name (*symp
));
2973 if (len
> SYMNMLEN
|| bfd_coff_force_symnames_in_strings (abfd
))
2974 sz
+= len
+ 1 + bfd_coff_debug_string_prefix_length (abfd
);
2981 dsec
= bfd_make_section_old_way (abfd
, DOT_DEBUG
);
2985 dsec
->flags
|= SEC_HAS_CONTENTS
;
2990 if (bfd_get_start_address (abfd
))
2991 /* A start address may have been added to the original file. In this
2992 case it will need an optional header to record it. */
2993 abfd
->flags
|= EXEC_P
;
2995 if (abfd
->flags
& EXEC_P
)
2996 sofar
+= bfd_coff_aoutsz (abfd
);
2998 else if (xcoff_data (abfd
)->full_aouthdr
)
2999 sofar
+= bfd_coff_aoutsz (abfd
);
3001 sofar
+= SMALL_AOUTSZ
;
3004 sofar
+= abfd
->section_count
* bfd_coff_scnhsz (abfd
);
3007 /* XCOFF handles overflows in the reloc and line number count fields
3008 by allocating a new section header to hold the correct counts. */
3009 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3010 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3011 sofar
+= bfd_coff_scnhsz (abfd
);
3014 #ifdef COFF_IMAGE_WITH_PE
3016 /* PE requires the sections to be in memory order when listed in
3017 the section headers. It also does not like empty loadable
3018 sections. The sections apparently do not have to be in the
3019 right order in the image file itself, but we do need to get the
3020 target_index values right. */
3023 asection
**section_list
;
3027 #ifdef COFF_PAGE_SIZE
3028 /* Clear D_PAGED if section alignment is smaller than
3030 if (pe_data (abfd
)->pe_opthdr
.SectionAlignment
< COFF_PAGE_SIZE
)
3031 abfd
->flags
&= ~D_PAGED
;
3035 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3038 /* We allocate an extra cell to simplify the final loop. */
3039 amt
= sizeof (struct asection
*) * (count
+ 1);
3040 section_list
= (asection
**) bfd_malloc (amt
);
3041 if (section_list
== NULL
)
3045 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3047 section_list
[i
] = current
;
3050 section_list
[i
] = NULL
;
3052 qsort (section_list
, count
, sizeof (asection
*), sort_by_secaddr
);
3054 /* Rethread the linked list into sorted order; at the same time,
3055 assign target_index values. */
3057 abfd
->sections
= NULL
;
3058 abfd
->section_last
= NULL
;
3059 for (i
= 0; i
< count
; i
++)
3061 current
= section_list
[i
];
3062 bfd_section_list_append (abfd
, current
);
3064 /* Later, if the section has zero size, we'll be throwing it
3065 away, so we don't want to number it now. Note that having
3066 a zero size and having real contents are different
3067 concepts: .bss has no contents, but (usually) non-zero
3069 if (current
->size
== 0)
3071 /* Discard. However, it still might have (valid) symbols
3072 in it, so arbitrarily set it to section 1 (indexing is
3073 1-based here; usually .text). __end__ and other
3074 contents of .endsection really have this happen.
3075 FIXME: This seems somewhat dubious. */
3076 current
->target_index
= 1;
3079 current
->target_index
= target_index
++;
3082 free (section_list
);
3084 #else /* ! COFF_IMAGE_WITH_PE */
3086 /* Set the target_index field. */
3088 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3089 current
->target_index
= target_index
++;
3091 #endif /* ! COFF_IMAGE_WITH_PE */
3093 if (target_index
>= bfd_coff_max_nscns (abfd
))
3095 bfd_set_error (bfd_error_file_too_big
);
3097 /* xgettext:c-format */
3098 (_("%pB: too many sections (%d)"), abfd
, target_index
);
3102 align_adjust
= FALSE
;
3103 for (current
= abfd
->sections
;
3105 current
= current
->next
)
3107 #ifdef COFF_IMAGE_WITH_PE
3108 /* With PE we have to pad each section to be a multiple of its
3109 page size too, and remember both sizes. */
3110 if (coff_section_data (abfd
, current
) == NULL
)
3112 size_t amt
= sizeof (struct coff_section_tdata
);
3114 current
->used_by_bfd
= bfd_zalloc (abfd
, amt
);
3115 if (current
->used_by_bfd
== NULL
)
3118 if (pei_section_data (abfd
, current
) == NULL
)
3120 size_t amt
= sizeof (struct pei_section_tdata
);
3122 coff_section_data (abfd
, current
)->tdata
= bfd_zalloc (abfd
, amt
);
3123 if (coff_section_data (abfd
, current
)->tdata
== NULL
)
3126 if (pei_section_data (abfd
, current
)->virt_size
== 0)
3127 pei_section_data (abfd
, current
)->virt_size
= current
->size
;
3130 /* Only deal with sections which have contents. */
3131 if (!(current
->flags
& SEC_HAS_CONTENTS
))
3134 current
->rawsize
= current
->size
;
3136 #ifdef COFF_IMAGE_WITH_PE
3137 /* Make sure we skip empty sections in a PE image. */
3138 if (current
->size
== 0)
3142 /* Align the sections in the file to the same boundary on
3143 which they are aligned in virtual memory. */
3144 #ifdef ALIGN_SECTIONS_IN_FILE
3145 if ((abfd
->flags
& EXEC_P
) != 0)
3147 /* Make sure this section is aligned on the right boundary - by
3148 padding the previous section up if necessary. */
3151 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
3154 /* Make sure the file offset and the vma of .text/.data are at the
3155 same page offset, so that the file can be mmap'ed without being
3156 relocated. Failing that, AIX is able to load and execute the
3157 program, but it will be silently relocated (possible as
3158 executables are PIE). But the relocation is slightly costly and
3159 complexify the use of addr2line or gdb. So better to avoid it,
3160 like does the native linker. Usually gnu ld makes sure that
3161 the vma of .text is the file offset so this issue shouldn't
3162 appear unless you are stripping such an executable.
3164 AIX loader checks the text section alignment of (vma - filepos),
3165 and the native linker doesn't try to align the text sections.
3168 0 .text 000054cc 10000128 10000128 00000128 2**5
3169 CONTENTS, ALLOC, LOAD, CODE
3172 if (!strcmp (current
->name
, _TEXT
)
3173 || !strcmp (current
->name
, _DATA
))
3175 bfd_vma align
= 4096;
3176 bfd_vma sofar_off
= sofar
% align
;
3177 bfd_vma vma_off
= current
->vma
% align
;
3179 if (vma_off
> sofar_off
)
3180 sofar
+= vma_off
- sofar_off
;
3181 else if (vma_off
< sofar_off
)
3182 sofar
+= align
+ vma_off
- sofar_off
;
3185 if (previous
!= NULL
)
3186 previous
->size
+= sofar
- old_sofar
;
3191 /* In demand paged files the low order bits of the file offset
3192 must match the low order bits of the virtual address. */
3193 #ifdef COFF_PAGE_SIZE
3194 if ((abfd
->flags
& D_PAGED
) != 0
3195 && (current
->flags
& SEC_ALLOC
) != 0)
3196 sofar
+= (current
->vma
- (bfd_vma
) sofar
) % page_size
;
3198 current
->filepos
= sofar
;
3200 #ifdef COFF_IMAGE_WITH_PE
3201 /* Set the padded size. */
3202 current
->size
= (current
->size
+ page_size
- 1) & -page_size
;
3205 sofar
+= current
->size
;
3207 #ifdef ALIGN_SECTIONS_IN_FILE
3208 /* Make sure that this section is of the right size too. */
3209 if ((abfd
->flags
& EXEC_P
) == 0)
3211 bfd_size_type old_size
;
3213 old_size
= current
->size
;
3214 current
->size
= BFD_ALIGN (current
->size
,
3215 1 << current
->alignment_power
);
3216 align_adjust
= current
->size
!= old_size
;
3217 sofar
+= current
->size
- old_size
;
3222 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
3223 align_adjust
= sofar
!= old_sofar
;
3224 current
->size
+= sofar
- old_sofar
;
3228 #ifdef COFF_IMAGE_WITH_PE
3229 /* For PE we need to make sure we pad out to the aligned
3230 size, in case the caller only writes out data to the
3232 if (pei_section_data (abfd
, current
)->virt_size
< current
->size
)
3233 align_adjust
= TRUE
;
3237 /* Force .lib sections to start at zero. The vma is then
3238 incremented in coff_set_section_contents. This is right for
3240 if (strcmp (current
->name
, _LIB
) == 0)
3241 bfd_set_section_vma (current
, 0);
3244 #ifdef ALIGN_SECTIONS_IN_FILE
3249 /* It is now safe to write to the output file. If we needed an
3250 alignment adjustment for the last section, then make sure that
3251 there is a byte at offset sofar. If there are no symbols and no
3252 relocs, then nothing follows the last section. If we don't force
3253 the last byte out, then the file may appear to be truncated. */
3259 if (bfd_seek (abfd
, sofar
- 1, SEEK_SET
) != 0
3260 || bfd_bwrite (&b
, (bfd_size_type
) 1, abfd
) != 1)
3264 /* Make sure the relocations are aligned. We don't need to make
3265 sure that this byte exists, because it will only matter if there
3266 really are relocs. */
3267 sofar
= BFD_ALIGN (sofar
, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER
);
3269 obj_relocbase (abfd
) = sofar
;
3270 abfd
->output_has_begun
= TRUE
;
3275 #ifdef COFF_IMAGE_WITH_PE
3277 static unsigned int pelength
;
3278 static unsigned int peheader
;
3281 coff_read_word (bfd
*abfd
, unsigned int *value
)
3286 status
= bfd_bread (b
, (bfd_size_type
) 2, abfd
);
3294 *value
= (unsigned int) b
[0];
3296 *value
= (unsigned int) (b
[0] + (b
[1] << 8));
3298 pelength
+= (unsigned int) status
;
3304 coff_compute_checksum (bfd
*abfd
)
3306 bfd_boolean more_data
;
3313 filepos
= (file_ptr
) 0;
3317 if (bfd_seek (abfd
, filepos
, SEEK_SET
) != 0)
3320 more_data
= coff_read_word (abfd
, &value
);
3322 total
= 0xffff & (total
+ (total
>> 0x10));
3327 return (0xffff & (total
+ (total
>> 0x10)));
3331 coff_apply_checksum (bfd
*abfd
)
3333 unsigned int computed
;
3334 unsigned int checksum
= 0;
3336 if (bfd_seek (abfd
, 0x3c, SEEK_SET
) != 0)
3339 if (!coff_read_word (abfd
, &peheader
))
3342 if (bfd_seek (abfd
, peheader
+ 0x58, SEEK_SET
) != 0)
3346 bfd_bwrite (&checksum
, (bfd_size_type
) 4, abfd
);
3348 if (bfd_seek (abfd
, peheader
, SEEK_SET
) != 0)
3351 computed
= coff_compute_checksum (abfd
);
3353 checksum
= computed
+ pelength
;
3355 if (bfd_seek (abfd
, peheader
+ 0x58, SEEK_SET
) != 0)
3358 bfd_bwrite (&checksum
, (bfd_size_type
) 4, abfd
);
3363 #endif /* COFF_IMAGE_WITH_PE */
3366 coff_write_object_contents (bfd
* abfd
)
3369 bfd_boolean hasrelocs
= FALSE
;
3370 bfd_boolean haslinno
= FALSE
;
3371 #ifdef COFF_IMAGE_WITH_PE
3372 bfd_boolean hasdebug
= FALSE
;
3375 file_ptr reloc_base
;
3376 file_ptr lineno_base
;
3378 unsigned long reloc_size
= 0, reloc_count
= 0;
3379 unsigned long lnno_size
= 0;
3380 bfd_boolean long_section_names
;
3381 asection
*text_sec
= NULL
;
3382 asection
*data_sec
= NULL
;
3383 asection
*bss_sec
= NULL
;
3384 struct internal_filehdr internal_f
;
3385 struct internal_aouthdr internal_a
;
3386 #ifdef COFF_LONG_SECTION_NAMES
3387 size_t string_size
= STRING_SIZE_SIZE
;
3390 bfd_set_error (bfd_error_system_call
);
3392 /* Make a pass through the symbol table to count line number entries and
3393 put them into the correct asections. */
3394 lnno_size
= coff_count_linenumbers (abfd
) * bfd_coff_linesz (abfd
);
3396 if (! abfd
->output_has_begun
)
3398 if (! coff_compute_section_file_positions (abfd
))
3402 reloc_base
= obj_relocbase (abfd
);
3404 /* Work out the size of the reloc and linno areas. */
3406 for (current
= abfd
->sections
; current
!= NULL
; current
=
3409 #ifdef COFF_WITH_EXTENDED_RELOC_COUNTER
3410 /* We store the actual reloc count in the first reloc's addr. */
3411 if ((obj_pe (abfd
) || obj_go32 (abfd
)) && current
->reloc_count
>= 0xffff)
3414 reloc_count
+= current
->reloc_count
;
3417 reloc_size
= reloc_count
* bfd_coff_relsz (abfd
);
3419 lineno_base
= reloc_base
+ reloc_size
;
3420 sym_base
= lineno_base
+ lnno_size
;
3422 /* Indicate in each section->line_filepos its actual file address. */
3423 for (current
= abfd
->sections
; current
!= NULL
; current
=
3426 if (current
->lineno_count
)
3428 current
->line_filepos
= lineno_base
;
3429 current
->moving_line_filepos
= lineno_base
;
3430 lineno_base
+= current
->lineno_count
* bfd_coff_linesz (abfd
);
3433 current
->line_filepos
= 0;
3435 if (current
->reloc_count
)
3437 current
->rel_filepos
= reloc_base
;
3438 reloc_base
+= current
->reloc_count
* bfd_coff_relsz (abfd
);
3439 #ifdef COFF_WITH_EXTENDED_RELOC_COUNTER
3440 /* Extra reloc to hold real count. */
3441 if ((obj_pe (abfd
) || obj_go32 (abfd
)) && current
->reloc_count
>= 0xffff)
3442 reloc_base
+= bfd_coff_relsz (abfd
);
3446 current
->rel_filepos
= 0;
3449 /* Write section headers to the file. */
3450 internal_f
.f_nscns
= 0;
3452 if ((abfd
->flags
& EXEC_P
) != 0)
3453 scn_base
= bfd_coff_filhsz (abfd
) + bfd_coff_aoutsz (abfd
);
3456 scn_base
= bfd_coff_filhsz (abfd
);
3459 if (xcoff_data (abfd
)->full_aouthdr
)
3460 scn_base
+= bfd_coff_aoutsz (abfd
);
3462 scn_base
+= SMALL_AOUTSZ
;
3467 if (bfd_seek (abfd
, scn_base
, SEEK_SET
) != 0)
3470 long_section_names
= FALSE
;
3471 for (current
= abfd
->sections
;
3473 current
= current
->next
)
3475 struct internal_scnhdr section
;
3476 #ifdef COFF_IMAGE_WITH_PE
3477 bfd_boolean is_reloc_section
= FALSE
;
3479 if (strcmp (current
->name
, DOT_RELOC
) == 0)
3481 is_reloc_section
= TRUE
;
3483 pe_data (abfd
)->has_reloc_section
= 1;
3487 internal_f
.f_nscns
++;
3489 strncpy (section
.s_name
, current
->name
, SCNNMLEN
);
3491 #ifdef COFF_LONG_SECTION_NAMES
3492 /* Handle long section names as in PE. This must be compatible
3493 with the code in coff_write_symbols and _bfd_coff_final_link. */
3494 if (bfd_coff_long_section_names (abfd
))
3498 len
= strlen (current
->name
);
3501 /* The s_name field is defined to be NUL-padded but need not be
3502 NUL-terminated. We use a temporary buffer so that we can still
3503 sprintf all eight chars without splatting a terminating NUL
3504 over the first byte of the following member (s_paddr). */
3505 /* PR 21096: The +20 is to stop a bogus warning from gcc7 about
3506 a possible buffer overflow. */
3507 char s_name_buf
[SCNNMLEN
+ 1 + 20];
3509 /* An inherent limitation of the /nnnnnnn notation used to indicate
3510 the offset of the long name in the string table is that we
3511 cannot address entries beyone the ten million byte boundary. */
3512 if (string_size
>= 10000000)
3514 bfd_set_error (bfd_error_file_too_big
);
3516 /* xgettext:c-format */
3517 (_("%pB: section %pA: string table overflow at offset %ld"),
3518 abfd
, current
, (unsigned long) string_size
);
3522 /* We do not need to use snprintf here as we have already verfied
3523 that string_size is not too big, plus we have an overlarge
3524 buffer, just in case. */
3525 sprintf (s_name_buf
, "/%lu", (unsigned long) string_size
);
3526 /* Then strncpy takes care of any padding for us. */
3527 strncpy (section
.s_name
, s_name_buf
, SCNNMLEN
);
3528 string_size
+= len
+ 1;
3529 long_section_names
= TRUE
;
3535 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3536 Ian Taylor <ian@cygnus.com>. */
3537 if (strcmp (current
->name
, _LIB
) == 0)
3538 section
.s_vaddr
= 0;
3541 section
.s_vaddr
= current
->vma
;
3542 section
.s_paddr
= current
->lma
;
3543 section
.s_size
= current
->size
;
3544 #ifdef coff_get_section_load_page
3545 section
.s_page
= coff_get_section_load_page (current
);
3551 section
.s_paddr
= 0;
3553 #ifdef COFF_IMAGE_WITH_PE
3554 /* Reminder: s_paddr holds the virtual size of the section. */
3555 if (coff_section_data (abfd
, current
) != NULL
3556 && pei_section_data (abfd
, current
) != NULL
)
3557 section
.s_paddr
= pei_section_data (abfd
, current
)->virt_size
;
3559 section
.s_paddr
= 0;
3562 /* If this section has no size or is unloadable then the scnptr
3564 if (current
->size
== 0
3565 || (current
->flags
& (SEC_LOAD
| SEC_HAS_CONTENTS
)) == 0)
3566 section
.s_scnptr
= 0;
3568 section
.s_scnptr
= current
->filepos
;
3570 section
.s_relptr
= current
->rel_filepos
;
3571 section
.s_lnnoptr
= current
->line_filepos
;
3572 section
.s_nreloc
= current
->reloc_count
;
3573 section
.s_nlnno
= current
->lineno_count
;
3574 #ifndef COFF_IMAGE_WITH_PE
3575 /* In PEI, relocs come in the .reloc section. */
3576 if (current
->reloc_count
!= 0)
3579 if (current
->lineno_count
!= 0)
3581 #ifdef COFF_IMAGE_WITH_PE
3582 if ((current
->flags
& SEC_DEBUGGING
) != 0
3583 && ! is_reloc_section
)
3589 /* Indicate the use of an XCOFF overflow section header. */
3590 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3592 section
.s_nreloc
= 0xffff;
3593 section
.s_nlnno
= 0xffff;
3598 section
.s_flags
= sec_to_styp_flags (current
->name
, current
->flags
);
3600 if (!strcmp (current
->name
, _TEXT
))
3602 else if (!strcmp (current
->name
, _DATA
))
3604 else if (!strcmp (current
->name
, _BSS
))
3607 #ifdef COFF_ENCODE_ALIGNMENT
3608 COFF_ENCODE_ALIGNMENT(section
, current
->alignment_power
);
3609 if ((unsigned int)COFF_DECODE_ALIGNMENT(section
.s_flags
)
3610 != current
->alignment_power
)
3612 bfd_boolean warn
= coff_data (abfd
)->link_info
3613 && !bfd_link_relocatable (coff_data (abfd
)->link_info
);
3616 /* xgettext:c-format */
3617 (_("%pB:%s section %s: alignment 2**%u not representable"),
3618 abfd
, warn
? " warning:" : "", current
->name
,
3619 current
->alignment_power
);
3622 bfd_set_error (bfd_error_nonrepresentable_section
);
3628 #ifdef COFF_IMAGE_WITH_PE
3629 /* Suppress output of the sections if they are null. ld
3630 includes the bss and data sections even if there is no size
3631 assigned to them. NT loader doesn't like it if these section
3632 headers are included if the sections themselves are not
3633 needed. See also coff_compute_section_file_positions. */
3634 if (section
.s_size
== 0)
3635 internal_f
.f_nscns
--;
3640 bfd_size_type amt
= bfd_coff_scnhsz (abfd
);
3642 if (bfd_coff_swap_scnhdr_out (abfd
, §ion
, &buff
) == 0
3643 || bfd_bwrite (& buff
, amt
, abfd
) != amt
)
3648 /* PE stores COMDAT section information in the symbol table. If
3649 this section is supposed to have some COMDAT info, track down
3650 the symbol in the symbol table and modify it. */
3651 if ((current
->flags
& SEC_LINK_ONCE
) != 0)
3653 unsigned int i
, count
;
3655 coff_symbol_type
*csym
= NULL
;
3659 count
= bfd_get_symcount (abfd
);
3660 for (i
= 0, psym
= abfd
->outsymbols
; i
< count
; i
++, psym
++)
3662 if ((*psym
)->section
!= current
)
3665 /* Remember the location of the first symbol in this
3667 if (psymsec
== NULL
)
3670 /* See if this is the section symbol. */
3671 if (strcmp ((*psym
)->name
, current
->name
) == 0)
3673 csym
= coff_symbol_from (*psym
);
3675 || csym
->native
== NULL
3676 || ! csym
->native
->is_sym
3677 || csym
->native
->u
.syment
.n_numaux
< 1
3678 || csym
->native
->u
.syment
.n_sclass
!= C_STAT
3679 || csym
->native
->u
.syment
.n_type
!= T_NULL
)
3682 /* Here *PSYM is the section symbol for CURRENT. */
3689 Note that we might not if we're converting the file from
3690 some other object file format. */
3693 combined_entry_type
*aux
;
3695 /* We don't touch the x_checksum field. The
3696 x_associated field is not currently supported. */
3698 aux
= csym
->native
+ 1;
3699 BFD_ASSERT (! aux
->is_sym
);
3700 switch (current
->flags
& SEC_LINK_DUPLICATES
)
3702 case SEC_LINK_DUPLICATES_DISCARD
:
3703 aux
->u
.auxent
.x_scn
.x_comdat
= IMAGE_COMDAT_SELECT_ANY
;
3706 case SEC_LINK_DUPLICATES_ONE_ONLY
:
3707 aux
->u
.auxent
.x_scn
.x_comdat
=
3708 IMAGE_COMDAT_SELECT_NODUPLICATES
;
3711 case SEC_LINK_DUPLICATES_SAME_SIZE
:
3712 aux
->u
.auxent
.x_scn
.x_comdat
=
3713 IMAGE_COMDAT_SELECT_SAME_SIZE
;
3716 case SEC_LINK_DUPLICATES_SAME_CONTENTS
:
3717 aux
->u
.auxent
.x_scn
.x_comdat
=
3718 IMAGE_COMDAT_SELECT_EXACT_MATCH
;
3722 /* The COMDAT symbol must be the first symbol from this
3723 section in the symbol table. In order to make this
3724 work, we move the COMDAT symbol before the first
3725 symbol we found in the search above. It's OK to
3726 rearrange the symbol table at this point, because
3727 coff_renumber_symbols is going to rearrange it
3728 further and fix up all the aux entries. */
3729 if (psym
!= psymsec
)
3735 for (pcopy
= psym
; pcopy
> psymsec
; pcopy
--)
3736 pcopy
[0] = pcopy
[-1];
3741 #endif /* COFF_WITH_PE */
3746 /* XCOFF handles overflows in the reloc and line number count fields
3747 by creating a new section header to hold the correct values. */
3748 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3750 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3752 struct internal_scnhdr scnhdr
;
3756 internal_f
.f_nscns
++;
3757 memcpy (scnhdr
.s_name
, ".ovrflo", 8);
3758 scnhdr
.s_paddr
= current
->reloc_count
;
3759 scnhdr
.s_vaddr
= current
->lineno_count
;
3761 scnhdr
.s_scnptr
= 0;
3762 scnhdr
.s_relptr
= current
->rel_filepos
;
3763 scnhdr
.s_lnnoptr
= current
->line_filepos
;
3764 scnhdr
.s_nreloc
= current
->target_index
;
3765 scnhdr
.s_nlnno
= current
->target_index
;
3766 scnhdr
.s_flags
= STYP_OVRFLO
;
3767 amt
= bfd_coff_scnhsz (abfd
);
3768 if (bfd_coff_swap_scnhdr_out (abfd
, &scnhdr
, &buff
) == 0
3769 || bfd_bwrite (& buff
, amt
, abfd
) != amt
)
3776 #if defined (COFF_GO32_EXE) || defined (COFF_GO32)
3777 /* Pad section headers. */
3778 if ((abfd
->flags
& EXEC_P
) && abfd
->sections
!= NULL
)
3780 file_ptr cur_ptr
= scn_base
3781 + abfd
->section_count
* bfd_coff_scnhsz (abfd
);
3782 long fill_size
= (abfd
->sections
->filepos
- cur_ptr
);
3783 bfd_byte
*b
= bfd_zmalloc (fill_size
);
3786 bfd_bwrite ((PTR
)b
, fill_size
, abfd
);
3792 /* OK, now set up the filehdr... */
3794 /* Don't include the internal abs section in the section count */
3796 /* We will NOT put a fucking timestamp in the header here. Every time you
3797 put it back, I will come in and take it out again. I'm sorry. This
3798 field does not belong here. We fill it with a 0 so it compares the
3799 same but is not a reasonable time. -- gnu@cygnus.com */
3800 internal_f
.f_timdat
= 0;
3801 internal_f
.f_flags
= 0;
3803 if (abfd
->flags
& EXEC_P
)
3804 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3807 internal_f
.f_opthdr
= 0;
3810 if (xcoff_data (abfd
)->full_aouthdr
)
3811 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3813 internal_f
.f_opthdr
= SMALL_AOUTSZ
;
3819 internal_f
.f_flags
|= F_RELFLG
;
3821 internal_f
.f_flags
|= F_LNNO
;
3822 if (abfd
->flags
& EXEC_P
)
3823 internal_f
.f_flags
|= F_EXEC
;
3824 #ifdef COFF_IMAGE_WITH_PE
3826 internal_f
.f_flags
|= IMAGE_FILE_DEBUG_STRIPPED
;
3827 if (pe_data (abfd
)->real_flags
& IMAGE_FILE_LARGE_ADDRESS_AWARE
)
3828 internal_f
.f_flags
|= IMAGE_FILE_LARGE_ADDRESS_AWARE
;
3831 #ifndef COFF_WITH_pex64
3833 internal_f
.f_flags
|= IMAGE_FILE_32BIT_MACHINE
;
3835 if (bfd_little_endian (abfd
))
3836 internal_f
.f_flags
|= F_AR32WR
;
3838 internal_f
.f_flags
|= F_AR32W
;
3843 /* Target id is used in TI COFF v1 and later; COFF0 won't use this field,
3844 but it doesn't hurt to set it internally. */
3845 internal_f
.f_target_id
= TI_TARGET_ID
;
3848 /* FIXME, should do something about the other byte orders and
3852 if ((abfd
->flags
& DYNAMIC
) != 0)
3853 internal_f
.f_flags
|= F_SHROBJ
;
3854 if (bfd_get_section_by_name (abfd
, _LOADER
) != NULL
)
3855 internal_f
.f_flags
|= F_DYNLOAD
;
3858 memset (&internal_a
, 0, sizeof internal_a
);
3860 /* Set up architecture-dependent stuff. */
3862 unsigned int magic
= 0;
3863 unsigned short flags
= 0;
3865 coff_set_flags (abfd
, &magic
, &flags
);
3866 internal_f
.f_magic
= magic
;
3867 internal_f
.f_flags
|= flags
;
3868 /* ...and the "opt"hdr... */
3870 #ifdef TICOFF_AOUT_MAGIC
3871 internal_a
.magic
= TICOFF_AOUT_MAGIC
;
3872 #define __A_MAGIC_SET__
3876 #define __A_MAGIC_SET__
3877 internal_a
.magic
= ZMAGIC
;
3880 #if defined MCORE_PE
3881 #define __A_MAGIC_SET__
3882 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
3886 #define __A_MAGIC_SET__
3888 internal_a
.magic
= LYNXCOFFMAGIC
;
3890 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR64_MAGIC
;
3892 internal_a
.magic
= ZMAGIC
;
3897 #define __A_MAGIC_SET__
3898 internal_a
.magic
= PE32PMAGIC
;
3902 #define __A_MAGIC_SET__
3904 internal_a
.magic
= LYNXCOFFMAGIC
;
3909 #define __A_MAGIC_SET__
3910 internal_a
.magic
= (abfd
->flags
& D_PAGED
) ? RS6K_AOUTHDR_ZMAGIC
:
3911 (abfd
->flags
& WP_TEXT
) ? RS6K_AOUTHDR_NMAGIC
:
3912 RS6K_AOUTHDR_OMAGIC
;
3915 #if defined(SH) && defined(COFF_WITH_PE)
3916 #define __A_MAGIC_SET__
3917 internal_a
.magic
= SH_PE_MAGIC
;
3920 #if defined(MIPS) && defined(COFF_WITH_PE)
3921 #define __A_MAGIC_SET__
3922 internal_a
.magic
= MIPS_PE_MAGIC
;
3925 #ifndef __A_MAGIC_SET__
3926 #include "Your aouthdr magic number is not being set!"
3928 #undef __A_MAGIC_SET__
3932 /* FIXME: Does anybody ever set this to another value? */
3933 internal_a
.vstamp
= 0;
3935 /* Now should write relocs, strings, syms. */
3936 obj_sym_filepos (abfd
) = sym_base
;
3938 if (bfd_get_symcount (abfd
) != 0)
3942 if (!coff_renumber_symbols (abfd
, &firstundef
))
3944 coff_mangle_symbols (abfd
);
3945 if (! coff_write_symbols (abfd
))
3947 if (! coff_write_linenumbers (abfd
))
3949 if (! coff_write_relocs (abfd
, firstundef
))
3952 #ifdef COFF_LONG_SECTION_NAMES
3953 else if (long_section_names
&& ! obj_coff_strings_written (abfd
))
3955 /* If we have long section names we have to write out the string
3956 table even if there are no symbols. */
3957 if (! coff_write_symbols (abfd
))
3961 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
3962 backend linker, and obj_raw_syment_count is not valid until after
3963 coff_write_symbols is called. */
3964 if (obj_raw_syment_count (abfd
) != 0)
3966 internal_f
.f_symptr
= sym_base
;
3968 /* AIX appears to require that F_RELFLG not be set if there are
3969 local symbols but no relocations. */
3970 internal_f
.f_flags
&=~ F_RELFLG
;
3975 if (long_section_names
)
3976 internal_f
.f_symptr
= sym_base
;
3978 internal_f
.f_symptr
= 0;
3979 internal_f
.f_flags
|= F_LSYMS
;
3984 internal_a
.tsize
= text_sec
->size
;
3985 internal_a
.text_start
= internal_a
.tsize
? text_sec
->vma
: 0;
3989 internal_a
.dsize
= data_sec
->size
;
3990 internal_a
.data_start
= internal_a
.dsize
? data_sec
->vma
: 0;
3994 internal_a
.bsize
= bss_sec
->size
;
3995 if (internal_a
.bsize
&& bss_sec
->vma
< internal_a
.data_start
)
3996 internal_a
.data_start
= bss_sec
->vma
;
3999 internal_a
.entry
= bfd_get_start_address (abfd
);
4000 internal_f
.f_nsyms
= obj_raw_syment_count (abfd
);
4003 if (xcoff_data (abfd
)->full_aouthdr
)
4006 asection
*loader_sec
;
4008 internal_a
.vstamp
= 1;
4010 internal_a
.o_snentry
= xcoff_data (abfd
)->snentry
;
4011 if (internal_a
.o_snentry
== 0)
4012 internal_a
.entry
= (bfd_vma
) -1;
4014 if (text_sec
!= NULL
)
4016 internal_a
.o_sntext
= text_sec
->target_index
;
4017 internal_a
.o_algntext
= bfd_section_alignment (text_sec
);
4021 internal_a
.o_sntext
= 0;
4022 internal_a
.o_algntext
= 0;
4024 if (data_sec
!= NULL
)
4026 internal_a
.o_sndata
= data_sec
->target_index
;
4027 internal_a
.o_algndata
= bfd_section_alignment (data_sec
);
4031 internal_a
.o_sndata
= 0;
4032 internal_a
.o_algndata
= 0;
4034 loader_sec
= bfd_get_section_by_name (abfd
, ".loader");
4035 if (loader_sec
!= NULL
)
4036 internal_a
.o_snloader
= loader_sec
->target_index
;
4038 internal_a
.o_snloader
= 0;
4039 if (bss_sec
!= NULL
)
4040 internal_a
.o_snbss
= bss_sec
->target_index
;
4042 internal_a
.o_snbss
= 0;
4044 toc
= xcoff_data (abfd
)->toc
;
4045 internal_a
.o_toc
= toc
;
4046 internal_a
.o_sntoc
= xcoff_data (abfd
)->sntoc
;
4048 internal_a
.o_modtype
= xcoff_data (abfd
)->modtype
;
4049 if (xcoff_data (abfd
)->cputype
!= -1)
4050 internal_a
.o_cputype
= xcoff_data (abfd
)->cputype
;
4053 switch (bfd_get_arch (abfd
))
4055 case bfd_arch_rs6000
:
4056 internal_a
.o_cputype
= 4;
4058 case bfd_arch_powerpc
:
4059 if (bfd_get_mach (abfd
) == bfd_mach_ppc
)
4060 internal_a
.o_cputype
= 3;
4062 internal_a
.o_cputype
= 1;
4068 internal_a
.o_maxstack
= xcoff_data (abfd
)->maxstack
;
4069 internal_a
.o_maxdata
= xcoff_data (abfd
)->maxdata
;
4075 /* After object contents are finalized so we can compute a reasonable hash,
4076 but before header is written so we can update it to point to debug directory. */
4077 struct pe_tdata
*pe
= pe_data (abfd
);
4079 if (pe
->build_id
.after_write_object_contents
!= NULL
)
4080 (*pe
->build_id
.after_write_object_contents
) (abfd
);
4084 /* Now write header. */
4085 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
) != 0)
4090 bfd_size_type amount
= bfd_coff_filhsz (abfd
);
4092 buff
= (char *) bfd_malloc (amount
);
4096 bfd_coff_swap_filehdr_out (abfd
, & internal_f
, buff
);
4097 amount
= bfd_bwrite (buff
, amount
, abfd
);
4101 if (amount
!= bfd_coff_filhsz (abfd
))
4105 if (abfd
->flags
& EXEC_P
)
4107 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
4108 include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */
4110 bfd_size_type amount
= bfd_coff_aoutsz (abfd
);
4112 buff
= (char *) bfd_malloc (amount
);
4116 coff_swap_aouthdr_out (abfd
, & internal_a
, buff
);
4117 amount
= bfd_bwrite (buff
, amount
, abfd
);
4121 if (amount
!= bfd_coff_aoutsz (abfd
))
4124 #ifdef COFF_IMAGE_WITH_PE
4125 if (! coff_apply_checksum (abfd
))
4135 /* XCOFF seems to always write at least a small a.out header. */
4136 coff_swap_aouthdr_out (abfd
, & internal_a
, & buff
);
4137 if (xcoff_data (abfd
)->full_aouthdr
)
4138 size
= bfd_coff_aoutsz (abfd
);
4140 size
= SMALL_AOUTSZ
;
4141 if (bfd_bwrite (& buff
, (bfd_size_type
) size
, abfd
) != size
)
4150 coff_set_section_contents (bfd
* abfd
,
4152 const void * location
,
4154 bfd_size_type count
)
4156 if (! abfd
->output_has_begun
) /* Set by bfd.c handler. */
4158 if (! coff_compute_section_file_positions (abfd
))
4162 #if defined(_LIB) && !defined(TARG_AUX)
4163 /* The physical address field of a .lib section is used to hold the
4164 number of shared libraries in the section. This code counts the
4165 number of sections being written, and increments the lma field
4168 I have found no documentation on the contents of this section.
4169 Experimentation indicates that the section contains zero or more
4170 records, each of which has the following structure:
4172 - a (four byte) word holding the length of this record, in words,
4173 - a word that always seems to be set to "2",
4174 - the path to a shared library, null-terminated and then padded
4175 to a whole word boundary.
4177 bfd_assert calls have been added to alert if an attempt is made
4178 to write a section which doesn't follow these assumptions. The
4179 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
4180 <robertl@arnet.com> (Thanks!).
4182 Gvran Uddeborg <gvran@uddeborg.pp.se>. */
4183 if (strcmp (section
->name
, _LIB
) == 0)
4185 bfd_byte
*rec
, *recend
;
4187 rec
= (bfd_byte
*) location
;
4188 recend
= rec
+ count
;
4189 while (rec
< recend
)
4192 rec
+= bfd_get_32 (abfd
, rec
) * 4;
4195 BFD_ASSERT (rec
== recend
);
4199 /* Don't write out bss sections - one way to do this is to
4200 see if the filepos has not been set. */
4201 if (section
->filepos
== 0)
4204 if (bfd_seek (abfd
, section
->filepos
+ offset
, SEEK_SET
) != 0)
4210 return bfd_bwrite (location
, count
, abfd
) == count
;
4214 buy_and_read (bfd
*abfd
, file_ptr where
,
4215 bfd_size_type nmemb
, bfd_size_type size
)
4219 if (_bfd_mul_overflow (nmemb
, size
, &amt
))
4221 bfd_set_error (bfd_error_file_too_big
);
4224 if (bfd_seek (abfd
, where
, SEEK_SET
) != 0)
4226 return _bfd_alloc_and_read (abfd
, amt
, amt
);
4233 Creating the linenumber table is done by reading in the entire
4234 coff linenumber table, and creating another table for internal use.
4236 A coff linenumber table is structured so that each function
4237 is marked as having a line number of 0. Each line within the
4238 function is an offset from the first line in the function. The
4239 base of the line number information for the table is stored in
4240 the symbol associated with the function.
4242 Note: The PE format uses line number 0 for a flag indicating a
4245 The information is copied from the external to the internal
4246 table, and each symbol which marks a function is marked by
4249 How does this work ?
4253 coff_sort_func_alent (const void * arg1
, const void * arg2
)
4255 const alent
*al1
= *(const alent
**) arg1
;
4256 const alent
*al2
= *(const alent
**) arg2
;
4257 const coff_symbol_type
*s1
= (const coff_symbol_type
*) (al1
->u
.sym
);
4258 const coff_symbol_type
*s2
= (const coff_symbol_type
*) (al2
->u
.sym
);
4260 if (s1
== NULL
|| s2
== NULL
)
4262 if (s1
->symbol
.value
< s2
->symbol
.value
)
4264 else if (s1
->symbol
.value
> s2
->symbol
.value
)
4271 coff_slurp_line_table (bfd
*abfd
, asection
*asect
)
4273 LINENO
*native_lineno
;
4274 alent
*lineno_cache
;
4275 unsigned int counter
;
4277 bfd_vma prev_offset
= 0;
4278 bfd_boolean ordered
= TRUE
;
4279 unsigned int nbr_func
;
4281 bfd_boolean have_func
;
4282 bfd_boolean ret
= TRUE
;
4285 if (asect
->lineno_count
== 0)
4288 BFD_ASSERT (asect
->lineno
== NULL
);
4290 if (asect
->lineno_count
> asect
->size
)
4293 (_("%pB: warning: line number count (%#lx) exceeds section size (%#lx)"),
4294 abfd
, (unsigned long) asect
->lineno_count
, (unsigned long) asect
->size
);
4298 if (_bfd_mul_overflow (asect
->lineno_count
+ 1, sizeof (alent
), &amt
))
4300 bfd_set_error (bfd_error_file_too_big
);
4303 lineno_cache
= (alent
*) bfd_alloc (abfd
, amt
);
4304 if (lineno_cache
== NULL
)
4307 native_lineno
= (LINENO
*) buy_and_read (abfd
, asect
->line_filepos
,
4308 asect
->lineno_count
,
4309 bfd_coff_linesz (abfd
));
4310 if (native_lineno
== NULL
)
4313 (_("%pB: warning: line number table read failed"), abfd
);
4314 bfd_release (abfd
, lineno_cache
);
4318 cache_ptr
= lineno_cache
;
4319 asect
->lineno
= lineno_cache
;
4320 src
= native_lineno
;
4324 for (counter
= 0; counter
< asect
->lineno_count
; counter
++, src
++)
4326 struct internal_lineno dst
;
4328 bfd_coff_swap_lineno_in (abfd
, src
, &dst
);
4329 cache_ptr
->line_number
= dst
.l_lnno
;
4330 /* Appease memory checkers that get all excited about
4331 uninitialised memory when copying alents if u.offset is
4332 larger than u.sym. (64-bit BFD on 32-bit host.) */
4333 memset (&cache_ptr
->u
, 0, sizeof (cache_ptr
->u
));
4335 if (cache_ptr
->line_number
== 0)
4337 combined_entry_type
* ent
;
4338 unsigned long symndx
;
4339 coff_symbol_type
*sym
;
4342 symndx
= dst
.l_addr
.l_symndx
;
4343 if (symndx
>= obj_raw_syment_count (abfd
))
4346 /* xgettext:c-format */
4347 (_("%pB: warning: illegal symbol index 0x%lx in line number entry %d"),
4348 abfd
, symndx
, counter
);
4349 cache_ptr
->line_number
= -1;
4354 ent
= obj_raw_syments (abfd
) + symndx
;
4355 /* FIXME: We should not be casting between ints and
4356 pointers like this. */
4360 /* xgettext:c-format */
4361 (_("%pB: warning: illegal symbol index 0x%lx in line number entry %d"),
4362 abfd
, symndx
, counter
);
4363 cache_ptr
->line_number
= -1;
4367 sym
= (coff_symbol_type
*) (ent
->u
.syment
._n
._n_n
._n_zeroes
);
4369 /* PR 17512 file: 078-10659-0.004 */
4370 if (sym
< obj_symbols (abfd
)
4371 || sym
>= obj_symbols (abfd
) + bfd_get_symcount (abfd
))
4374 /* xgettext:c-format */
4375 (_("%pB: warning: illegal symbol in line number entry %d"),
4377 cache_ptr
->line_number
= -1;
4384 cache_ptr
->u
.sym
= (asymbol
*) sym
;
4385 if (sym
->lineno
!= NULL
)
4387 /* xgettext:c-format */
4388 (_("%pB: warning: duplicate line number information for `%s'"),
4389 abfd
, bfd_asymbol_name (&sym
->symbol
));
4391 sym
->lineno
= cache_ptr
;
4392 if (sym
->symbol
.value
< prev_offset
)
4394 prev_offset
= sym
->symbol
.value
;
4396 else if (!have_func
)
4397 /* Drop line information that has no associated function.
4398 PR 17521: file: 078-10659-0.004. */
4401 cache_ptr
->u
.offset
= dst
.l_addr
.l_paddr
- bfd_section_vma (asect
);
4405 asect
->lineno_count
= cache_ptr
- lineno_cache
;
4406 memset (cache_ptr
, 0, sizeof (*cache_ptr
));
4407 bfd_release (abfd
, native_lineno
);
4409 /* On some systems (eg AIX5.3) the lineno table may not be sorted. */
4412 /* Sort the table. */
4414 alent
*n_lineno_cache
;
4416 /* Create a table of functions. */
4417 if (_bfd_mul_overflow (nbr_func
, sizeof (alent
*), &amt
))
4419 bfd_set_error (bfd_error_file_too_big
);
4422 else if ((func_table
= (alent
**) bfd_alloc (abfd
, amt
)) != NULL
)
4424 alent
**p
= func_table
;
4427 for (i
= 0; i
< asect
->lineno_count
; i
++)
4428 if (lineno_cache
[i
].line_number
== 0)
4429 *p
++ = &lineno_cache
[i
];
4431 BFD_ASSERT ((unsigned int) (p
- func_table
) == nbr_func
);
4433 /* Sort by functions. */
4434 qsort (func_table
, nbr_func
, sizeof (alent
*), coff_sort_func_alent
);
4436 /* Create the new sorted table. */
4437 if (_bfd_mul_overflow (asect
->lineno_count
, sizeof (alent
), &amt
))
4439 bfd_set_error (bfd_error_file_too_big
);
4442 else if ((n_lineno_cache
= (alent
*) bfd_alloc (abfd
, amt
)) != NULL
)
4444 alent
*n_cache_ptr
= n_lineno_cache
;
4446 for (i
= 0; i
< nbr_func
; i
++)
4448 coff_symbol_type
*sym
;
4449 alent
*old_ptr
= func_table
[i
];
4451 /* Update the function entry. */
4452 sym
= (coff_symbol_type
*) old_ptr
->u
.sym
;
4453 /* PR binutils/17512: Point the lineno to where
4454 this entry will be after the memcpy below. */
4455 sym
->lineno
= lineno_cache
+ (n_cache_ptr
- n_lineno_cache
);
4456 /* Copy the function and line number entries. */
4458 *n_cache_ptr
++ = *old_ptr
++;
4459 while (old_ptr
->line_number
!= 0);
4462 memcpy (lineno_cache
, n_lineno_cache
,
4463 asect
->lineno_count
* sizeof (alent
));
4467 bfd_release (abfd
, func_table
);
4476 /* Slurp in the symbol table, converting it to generic form. Note
4477 that if coff_relocate_section is defined, the linker will read
4478 symbols via coff_link_add_symbols, rather than via this routine. */
4481 coff_slurp_symbol_table (bfd
* abfd
)
4483 combined_entry_type
*native_symbols
;
4484 coff_symbol_type
*cached_area
;
4485 unsigned int *table_ptr
;
4486 unsigned int number_of_symbols
= 0;
4487 bfd_boolean ret
= TRUE
;
4490 if (obj_symbols (abfd
))
4493 /* Read in the symbol table. */
4494 if ((native_symbols
= coff_get_normalized_symtab (abfd
)) == NULL
)
4497 /* Allocate enough room for all the symbols in cached form. */
4498 if (_bfd_mul_overflow (obj_raw_syment_count (abfd
),
4499 sizeof (*cached_area
), &amt
))
4501 bfd_set_error (bfd_error_file_too_big
);
4504 cached_area
= (coff_symbol_type
*) bfd_alloc (abfd
, amt
);
4505 if (cached_area
== NULL
)
4508 if (_bfd_mul_overflow (obj_raw_syment_count (abfd
),
4509 sizeof (*table_ptr
), &amt
))
4511 bfd_set_error (bfd_error_file_too_big
);
4514 table_ptr
= (unsigned int *) bfd_zalloc (abfd
, amt
);
4515 if (table_ptr
== NULL
)
4519 coff_symbol_type
*dst
= cached_area
;
4520 unsigned int last_native_index
= obj_raw_syment_count (abfd
);
4521 unsigned int this_index
= 0;
4523 while (this_index
< last_native_index
)
4525 combined_entry_type
*src
= native_symbols
+ this_index
;
4526 table_ptr
[this_index
] = number_of_symbols
;
4528 dst
->symbol
.the_bfd
= abfd
;
4529 BFD_ASSERT (src
->is_sym
);
4530 dst
->symbol
.name
= (char *) (src
->u
.syment
._n
._n_n
._n_offset
);
4531 /* We use the native name field to point to the cached field. */
4532 src
->u
.syment
._n
._n_n
._n_zeroes
= (bfd_hostptr_t
) dst
;
4533 dst
->symbol
.section
= coff_section_from_bfd_index (abfd
,
4534 src
->u
.syment
.n_scnum
);
4535 dst
->symbol
.flags
= 0;
4536 /* PR 17512: file: 079-7098-0.001:0.1. */
4537 dst
->symbol
.value
= 0;
4538 dst
->done_lineno
= FALSE
;
4540 switch (src
->u
.syment
.n_sclass
)
4546 case C_THUMBEXTFUNC
:
4550 #if ! defined _AIX52 && ! defined AIX_WEAK_SUPPORT
4555 case C_SYSTEM
: /* System Wide variable. */
4558 /* In PE, 0x68 (104) denotes a section symbol. */
4560 /* In PE, 0x69 (105) denotes a weak external symbol. */
4563 switch (coff_classify_symbol (abfd
, &src
->u
.syment
))
4565 case COFF_SYMBOL_GLOBAL
:
4566 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
4567 #if defined COFF_WITH_PE
4568 /* PE sets the symbol to a value relative to the
4569 start of the section. */
4570 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4572 dst
->symbol
.value
= (src
->u
.syment
.n_value
4573 - dst
->symbol
.section
->vma
);
4575 if (ISFCN ((src
->u
.syment
.n_type
)))
4576 /* A function ext does not go at the end of a
4578 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4581 case COFF_SYMBOL_COMMON
:
4582 dst
->symbol
.section
= bfd_com_section_ptr
;
4583 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4586 case COFF_SYMBOL_UNDEFINED
:
4587 dst
->symbol
.section
= bfd_und_section_ptr
;
4588 dst
->symbol
.value
= 0;
4591 case COFF_SYMBOL_PE_SECTION
:
4592 dst
->symbol
.flags
|= BSF_EXPORT
| BSF_SECTION_SYM
;
4593 dst
->symbol
.value
= 0;
4596 case COFF_SYMBOL_LOCAL
:
4597 dst
->symbol
.flags
= BSF_LOCAL
;
4598 #if defined COFF_WITH_PE
4599 /* PE sets the symbol to a value relative to the
4600 start of the section. */
4601 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4603 dst
->symbol
.value
= (src
->u
.syment
.n_value
4604 - dst
->symbol
.section
->vma
);
4606 if (ISFCN ((src
->u
.syment
.n_type
)))
4607 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4612 /* A symbol with a csect entry should not go at the end. */
4613 if (src
->u
.syment
.n_numaux
> 0)
4614 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
4618 if (src
->u
.syment
.n_sclass
== C_NT_WEAK
)
4619 dst
->symbol
.flags
|= BSF_WEAK
;
4621 if (src
->u
.syment
.n_sclass
== C_SECTION
4622 && src
->u
.syment
.n_scnum
> 0)
4623 dst
->symbol
.flags
= BSF_LOCAL
;
4625 if (src
->u
.syment
.n_sclass
== C_WEAKEXT
4627 || src
->u
.syment
.n_sclass
== C_AIX_WEAKEXT
4630 dst
->symbol
.flags
|= BSF_WEAK
;
4634 case C_STAT
: /* Static. */
4636 case C_THUMBSTAT
: /* Thumb static. */
4637 case C_THUMBLABEL
: /* Thumb label. */
4638 case C_THUMBSTATFUNC
:/* Thumb static function. */
4641 case C_DWARF
: /* A label in a dwarf section. */
4642 case C_INFO
: /* A label in a comment section. */
4644 case C_LABEL
: /* Label. */
4645 if (src
->u
.syment
.n_scnum
== N_DEBUG
)
4646 dst
->symbol
.flags
= BSF_DEBUGGING
;
4648 dst
->symbol
.flags
= BSF_LOCAL
;
4650 /* Base the value as an index from the base of the
4651 section, if there is one. */
4652 if (dst
->symbol
.section
)
4654 #if defined COFF_WITH_PE
4655 /* PE sets the symbol to a value relative to the
4656 start of the section. */
4657 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4659 dst
->symbol
.value
= (src
->u
.syment
.n_value
4660 - dst
->symbol
.section
->vma
);
4664 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4667 case C_MOS
: /* Member of structure. */
4668 case C_EOS
: /* End of structure. */
4669 case C_REGPARM
: /* Register parameter. */
4670 case C_REG
: /* register variable. */
4671 /* C_AUTOARG conflicts with TI COFF C_UEXT. */
4672 case C_TPDEF
: /* Type definition. */
4674 case C_AUTO
: /* Automatic variable. */
4675 case C_FIELD
: /* Bit field. */
4676 case C_ENTAG
: /* Enumeration tag. */
4677 case C_MOE
: /* Member of enumeration. */
4678 case C_MOU
: /* Member of union. */
4679 case C_UNTAG
: /* Union tag. */
4680 dst
->symbol
.flags
= BSF_DEBUGGING
;
4681 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4684 case C_FILE
: /* File name. */
4685 case C_STRTAG
: /* Structure tag. */
4702 dst
->symbol
.flags
= BSF_DEBUGGING
;
4703 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4707 case C_BINCL
: /* Beginning of include file. */
4708 case C_EINCL
: /* Ending of include file. */
4709 /* The value is actually a pointer into the line numbers
4710 of the file. We locate the line number entry, and
4711 set the section to the section which contains it, and
4712 the value to the index in that section. */
4716 dst
->symbol
.flags
= BSF_DEBUGGING
;
4717 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
4718 if (sec
->line_filepos
<= (file_ptr
) src
->u
.syment
.n_value
4719 && ((file_ptr
) (sec
->line_filepos
4720 + sec
->lineno_count
* bfd_coff_linesz (abfd
))
4721 > (file_ptr
) src
->u
.syment
.n_value
))
4724 dst
->symbol
.value
= 0;
4727 dst
->symbol
.section
= sec
;
4728 dst
->symbol
.value
= ((src
->u
.syment
.n_value
4729 - sec
->line_filepos
)
4730 / bfd_coff_linesz (abfd
));
4737 dst
->symbol
.flags
= BSF_DEBUGGING
;
4739 /* The value is actually a symbol index. Save a pointer
4740 to the symbol instead of the index. FIXME: This
4741 should use a union. */
4742 src
->u
.syment
.n_value
=
4743 (long) (intptr_t) (native_symbols
+ src
->u
.syment
.n_value
);
4744 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4749 case C_BLOCK
: /* ".bb" or ".eb". */
4750 case C_FCN
: /* ".bf" or ".ef" (or PE ".lf"). */
4751 case C_EFCN
: /* Physical end of function. */
4752 #if defined COFF_WITH_PE
4753 /* PE sets the symbol to a value relative to the start
4755 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4756 if (strcmp (dst
->symbol
.name
, ".bf") != 0)
4758 /* PE uses funny values for .ef and .lf; don't
4760 dst
->symbol
.flags
= BSF_DEBUGGING
;
4763 dst
->symbol
.flags
= BSF_DEBUGGING
| BSF_DEBUGGING_RELOC
;
4765 /* Base the value as an index from the base of the
4767 dst
->symbol
.flags
= BSF_LOCAL
;
4768 dst
->symbol
.value
= (src
->u
.syment
.n_value
4769 - dst
->symbol
.section
->vma
);
4773 case C_STATLAB
: /* Static load time label. */
4774 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4775 dst
->symbol
.flags
= BSF_GLOBAL
;
4779 /* PE DLLs sometimes have zeroed out symbols for some
4780 reason. Just ignore them without a warning. */
4781 if (src
->u
.syment
.n_type
== 0
4782 && src
->u
.syment
.n_value
== 0
4783 && src
->u
.syment
.n_scnum
== 0)
4786 /* XCOFF specific: deleted entry. */
4787 if (src
->u
.syment
.n_value
== C_NULL_VALUE
)
4791 case C_EXTDEF
: /* External definition. */
4792 case C_ULABEL
: /* Undefined label. */
4793 case C_USTATIC
: /* Undefined static. */
4794 #ifndef COFF_WITH_PE
4795 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4796 class to represent a section symbol. */
4797 case C_LINE
: /* line # reformatted as symbol table entry. */
4798 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4799 case C_ALIAS
: /* Duplicate tag. */
4801 /* New storage classes for TI COFF. */
4803 case C_UEXT
: /* Tentative external definition. */
4805 case C_EXTLAB
: /* External load time label. */
4808 /* xgettext:c-format */
4809 (_("%pB: unrecognized storage class %d for %s symbol `%s'"),
4810 abfd
, src
->u
.syment
.n_sclass
,
4811 dst
->symbol
.section
->name
, dst
->symbol
.name
);
4814 case C_HIDDEN
: /* Ext symbol in dmert public lib. */
4815 /* PR 20722: These symbols can also be generated by
4816 building DLLs with --gc-sections enabled. */
4817 dst
->symbol
.flags
= BSF_DEBUGGING
;
4818 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4823 dst
->symbol
.udata
.i
= 0;
4826 this_index
+= (src
->u
.syment
.n_numaux
) + 1;
4828 number_of_symbols
++;
4832 obj_symbols (abfd
) = cached_area
;
4833 obj_raw_syments (abfd
) = native_symbols
;
4835 abfd
->symcount
= number_of_symbols
;
4836 obj_convert (abfd
) = table_ptr
;
4837 /* Slurp the line tables for each section too. */
4844 if (! coff_slurp_line_table (abfd
, p
))
4853 /* Classify a COFF symbol. A couple of targets have globally visible
4854 symbols which are not class C_EXT, and this handles those. It also
4855 recognizes some special PE cases. */
4857 static enum coff_symbol_classification
4858 coff_classify_symbol (bfd
*abfd
,
4859 struct internal_syment
*syment
)
4861 /* FIXME: This partially duplicates the switch in
4862 coff_slurp_symbol_table. */
4863 switch (syment
->n_sclass
)
4869 case C_THUMBEXTFUNC
:
4873 #if ! defined _AIX52 && ! defined AIX_WEAK_SUPPORT
4883 if (syment
->n_scnum
== 0)
4885 if (syment
->n_value
== 0)
4886 return COFF_SYMBOL_UNDEFINED
;
4888 return COFF_SYMBOL_COMMON
;
4891 if (syment
->n_sclass
== C_HIDEXT
)
4892 return COFF_SYMBOL_LOCAL
;
4894 return COFF_SYMBOL_GLOBAL
;
4901 if (syment
->n_sclass
== C_STAT
)
4903 if (syment
->n_scnum
== 0)
4904 /* The Microsoft compiler sometimes generates these if a
4905 small static function is inlined every time it is used.
4906 The function is discarded, but the symbol table entry
4908 return COFF_SYMBOL_LOCAL
;
4910 #ifdef STRICT_PE_FORMAT
4911 /* This is correct for Microsoft generated objects, but it
4912 breaks gas generated objects. */
4913 if (syment
->n_value
== 0)
4917 char buf
[SYMNMLEN
+ 1];
4919 name
= _bfd_coff_internal_syment_name (abfd
, syment
, buf
)
4920 sec
= coff_section_from_bfd_index (abfd
, syment
->n_scnum
);
4921 if (sec
!= NULL
&& name
!= NULL
4922 && (strcmp (bfd_section_name (sec
), name
) == 0))
4923 return COFF_SYMBOL_PE_SECTION
;
4927 return COFF_SYMBOL_LOCAL
;
4930 if (syment
->n_sclass
== C_SECTION
)
4932 /* In some cases in a DLL generated by the Microsoft linker, the
4933 n_value field will contain garbage. FIXME: This should
4934 probably be handled by the swapping function instead. */
4935 syment
->n_value
= 0;
4936 if (syment
->n_scnum
== 0)
4937 return COFF_SYMBOL_UNDEFINED
;
4938 return COFF_SYMBOL_PE_SECTION
;
4940 #endif /* COFF_WITH_PE */
4942 /* If it is not a global symbol, we presume it is a local symbol. */
4943 if (syment
->n_scnum
== 0)
4945 char buf
[SYMNMLEN
+ 1];
4948 /* xgettext:c-format */
4949 (_("warning: %pB: local symbol `%s' has no section"),
4950 abfd
, _bfd_coff_internal_syment_name (abfd
, syment
, buf
));
4953 return COFF_SYMBOL_LOCAL
;
4960 Coff relocations are easily transformed into the internal BFD form
4963 Reading a coff relocation table is done in the following stages:
4965 o Read the entire coff relocation table into memory.
4967 o Process each relocation in turn; first swap it from the
4968 external to the internal form.
4970 o Turn the symbol referenced in the relocation's symbol index
4971 into a pointer into the canonical symbol table.
4972 This table is the same as the one returned by a call to
4973 @code{bfd_canonicalize_symtab}. The back end will call that
4974 routine and save the result if a canonicalization hasn't been done.
4976 o The reloc index is turned into a pointer to a howto
4977 structure, in a back end specific way. For instance, the 386
4978 uses the @code{r_type} to directly produce an index
4979 into a howto table vector.
4983 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
4985 coff_symbol_type *coffsym = NULL; \
4987 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
4988 coffsym = (obj_symbols (abfd) \
4989 + (cache_ptr->sym_ptr_ptr - symbols)); \
4991 coffsym = coff_symbol_from (ptr); \
4992 if (coffsym != NULL \
4993 && coffsym->native->is_sym \
4994 && coffsym->native->u.syment.n_scnum == 0) \
4995 cache_ptr->addend = 0; \
4996 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
4997 && ptr->section != NULL) \
4998 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
5000 cache_ptr->addend = 0; \
5005 coff_slurp_reloc_table (bfd
* abfd
, sec_ptr asect
, asymbol
** symbols
)
5007 RELOC
*native_relocs
;
5008 arelent
*reloc_cache
;
5013 if (asect
->relocation
)
5015 if (asect
->reloc_count
== 0)
5017 if (asect
->flags
& SEC_CONSTRUCTOR
)
5019 if (!coff_slurp_symbol_table (abfd
))
5022 native_relocs
= (RELOC
*) buy_and_read (abfd
, asect
->rel_filepos
,
5024 bfd_coff_relsz (abfd
));
5025 if (_bfd_mul_overflow (asect
->reloc_count
, sizeof (arelent
), &amt
))
5027 bfd_set_error (bfd_error_file_too_big
);
5030 reloc_cache
= (arelent
*) bfd_alloc (abfd
, amt
);
5031 if (reloc_cache
== NULL
|| native_relocs
== NULL
)
5034 for (idx
= 0; idx
< asect
->reloc_count
; idx
++)
5036 struct internal_reloc dst
;
5037 struct external_reloc
*src
;
5038 #ifndef RELOC_PROCESSING
5042 cache_ptr
= reloc_cache
+ idx
;
5043 src
= native_relocs
+ idx
;
5046 coff_swap_reloc_in (abfd
, src
, &dst
);
5048 #ifdef RELOC_PROCESSING
5049 RELOC_PROCESSING (cache_ptr
, &dst
, symbols
, abfd
, asect
);
5051 cache_ptr
->address
= dst
.r_vaddr
;
5053 if (dst
.r_symndx
!= -1 && symbols
!= NULL
)
5055 if (dst
.r_symndx
< 0 || dst
.r_symndx
>= obj_conv_table_size (abfd
))
5058 /* xgettext:c-format */
5059 (_("%pB: warning: illegal symbol index %ld in relocs"),
5060 abfd
, dst
.r_symndx
);
5061 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
5066 cache_ptr
->sym_ptr_ptr
= (symbols
5067 + obj_convert (abfd
)[dst
.r_symndx
]);
5068 ptr
= *(cache_ptr
->sym_ptr_ptr
);
5073 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
5077 /* The symbols definitions that we have read in have been
5078 relocated as if their sections started at 0. But the offsets
5079 refering to the symbols in the raw data have not been
5080 modified, so we have to have a negative addend to compensate.
5082 Note that symbols which used to be common must be left alone. */
5084 /* Calculate any reloc addend by looking at the symbol. */
5085 CALC_ADDEND (abfd
, ptr
, dst
, cache_ptr
);
5088 cache_ptr
->address
-= asect
->vma
;
5089 /* !! cache_ptr->section = NULL;*/
5091 /* Fill in the cache_ptr->howto field from dst.r_type. */
5092 RTYPE2HOWTO (cache_ptr
, &dst
);
5093 #endif /* RELOC_PROCESSING */
5095 if (cache_ptr
->howto
== NULL
)
5098 /* xgettext:c-format */
5099 (_("%pB: illegal relocation type %d at address %#" PRIx64
),
5100 abfd
, dst
.r_type
, (uint64_t) dst
.r_vaddr
);
5101 bfd_set_error (bfd_error_bad_value
);
5106 asect
->relocation
= reloc_cache
;
5110 #ifndef coff_rtype_to_howto
5113 /* Get the howto structure for a reloc. This is only used if the file
5114 including this one defines coff_relocate_section to be
5115 _bfd_coff_generic_relocate_section, so it is OK if it does not
5116 always work. It is the responsibility of the including file to
5117 make sure it is reasonable if it is needed. */
5119 static reloc_howto_type
*
5120 coff_rtype_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
,
5121 asection
*sec ATTRIBUTE_UNUSED
,
5122 struct internal_reloc
*rel ATTRIBUTE_UNUSED
,
5123 struct coff_link_hash_entry
*h ATTRIBUTE_UNUSED
,
5124 struct internal_syment
*sym ATTRIBUTE_UNUSED
,
5125 bfd_vma
*addendp ATTRIBUTE_UNUSED
)
5129 genrel
.howto
= NULL
;
5130 RTYPE2HOWTO (&genrel
, rel
);
5131 return genrel
.howto
;
5134 #else /* ! defined (RTYPE2HOWTO) */
5136 #define coff_rtype_to_howto NULL
5138 #endif /* ! defined (RTYPE2HOWTO) */
5139 #endif /* ! defined (coff_rtype_to_howto) */
5141 /* This is stupid. This function should be a boolean predicate. */
5144 coff_canonicalize_reloc (bfd
* abfd
,
5149 arelent
*tblptr
= section
->relocation
;
5150 unsigned int count
= 0;
5152 if (section
->flags
& SEC_CONSTRUCTOR
)
5154 /* This section has relocs made up by us, they are not in the
5155 file, so take them out of their chain and place them into
5156 the data area provided. */
5157 arelent_chain
*chain
= section
->constructor_chain
;
5159 for (count
= 0; count
< section
->reloc_count
; count
++)
5161 *relptr
++ = &chain
->relent
;
5162 chain
= chain
->next
;
5167 if (! coff_slurp_reloc_table (abfd
, section
, symbols
))
5170 tblptr
= section
->relocation
;
5172 for (; count
++ < section
->reloc_count
;)
5173 *relptr
++ = tblptr
++;
5176 return section
->reloc_count
;
5179 #ifndef coff_set_reloc
5180 #define coff_set_reloc _bfd_generic_set_reloc
5183 #ifndef coff_reloc16_estimate
5184 #define coff_reloc16_estimate dummy_reloc16_estimate
5187 dummy_reloc16_estimate (bfd
*abfd ATTRIBUTE_UNUSED
,
5188 asection
*input_section ATTRIBUTE_UNUSED
,
5189 arelent
*reloc ATTRIBUTE_UNUSED
,
5190 unsigned int shrink ATTRIBUTE_UNUSED
,
5191 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
)
5199 #ifndef coff_reloc16_extra_cases
5201 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
5203 /* This works even if abort is not declared in any header file. */
5206 dummy_reloc16_extra_cases (bfd
*abfd ATTRIBUTE_UNUSED
,
5207 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
,
5208 struct bfd_link_order
*link_order ATTRIBUTE_UNUSED
,
5209 arelent
*reloc ATTRIBUTE_UNUSED
,
5210 bfd_byte
*data ATTRIBUTE_UNUSED
,
5211 unsigned int *src_ptr ATTRIBUTE_UNUSED
,
5212 unsigned int *dst_ptr ATTRIBUTE_UNUSED
)
5218 /* If coff_relocate_section is defined, we can use the optimized COFF
5219 backend linker. Otherwise we must continue to use the old linker. */
5221 #ifdef coff_relocate_section
5223 #ifndef coff_bfd_link_hash_table_create
5224 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
5226 #ifndef coff_bfd_link_add_symbols
5227 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
5229 #ifndef coff_bfd_final_link
5230 #define coff_bfd_final_link _bfd_coff_final_link
5233 #else /* ! defined (coff_relocate_section) */
5235 #define coff_relocate_section NULL
5236 #ifndef coff_bfd_link_hash_table_create
5237 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
5239 #ifndef coff_bfd_link_add_symbols
5240 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
5242 #define coff_bfd_final_link _bfd_generic_final_link
5244 #endif /* ! defined (coff_relocate_section) */
5246 #define coff_bfd_link_just_syms _bfd_generic_link_just_syms
5247 #define coff_bfd_copy_link_hash_symbol_type \
5248 _bfd_generic_copy_link_hash_symbol_type
5249 #define coff_bfd_link_split_section _bfd_generic_link_split_section
5251 #define coff_bfd_link_check_relocs _bfd_generic_link_check_relocs
5253 #ifndef coff_start_final_link
5254 #define coff_start_final_link NULL
5257 #ifndef coff_adjust_symndx
5258 #define coff_adjust_symndx NULL
5261 #ifndef coff_link_add_one_symbol
5262 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
5265 #ifndef coff_link_output_has_begun
5268 coff_link_output_has_begun (bfd
* abfd
,
5269 struct coff_final_link_info
* info ATTRIBUTE_UNUSED
)
5271 return abfd
->output_has_begun
;
5275 #ifndef coff_final_link_postscript
5278 coff_final_link_postscript (bfd
* abfd ATTRIBUTE_UNUSED
,
5279 struct coff_final_link_info
* pfinfo ATTRIBUTE_UNUSED
)
5285 #ifndef coff_SWAP_aux_in
5286 #define coff_SWAP_aux_in coff_swap_aux_in
5288 #ifndef coff_SWAP_sym_in
5289 #define coff_SWAP_sym_in coff_swap_sym_in
5291 #ifndef coff_SWAP_lineno_in
5292 #define coff_SWAP_lineno_in coff_swap_lineno_in
5294 #ifndef coff_SWAP_aux_out
5295 #define coff_SWAP_aux_out coff_swap_aux_out
5297 #ifndef coff_SWAP_sym_out
5298 #define coff_SWAP_sym_out coff_swap_sym_out
5300 #ifndef coff_SWAP_lineno_out
5301 #define coff_SWAP_lineno_out coff_swap_lineno_out
5303 #ifndef coff_SWAP_reloc_out
5304 #define coff_SWAP_reloc_out coff_swap_reloc_out
5306 #ifndef coff_SWAP_filehdr_out
5307 #define coff_SWAP_filehdr_out coff_swap_filehdr_out
5309 #ifndef coff_SWAP_aouthdr_out
5310 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
5312 #ifndef coff_SWAP_scnhdr_out
5313 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
5315 #ifndef coff_SWAP_reloc_in
5316 #define coff_SWAP_reloc_in coff_swap_reloc_in
5318 #ifndef coff_SWAP_filehdr_in
5319 #define coff_SWAP_filehdr_in coff_swap_filehdr_in
5321 #ifndef coff_SWAP_aouthdr_in
5322 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
5324 #ifndef coff_SWAP_scnhdr_in
5325 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
5328 static bfd_coff_backend_data bfd_coff_std_swap_table ATTRIBUTE_UNUSED
=
5330 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5331 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5332 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5333 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5334 coff_SWAP_scnhdr_out
,
5335 FILHSZ
, AOUTSZ
, SCNHSZ
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
5336 #ifdef COFF_LONG_FILENAMES
5341 COFF_DEFAULT_LONG_SECTION_NAMES
,
5342 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5343 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5348 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5354 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5355 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
5356 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5357 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5358 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5359 coff_classify_symbol
, coff_compute_section_file_positions
,
5360 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5361 coff_adjust_symndx
, coff_link_add_one_symbol
,
5362 coff_link_output_has_begun
, coff_final_link_postscript
,
5367 /* COFF0 differs in file/section header size and relocation entry size. */
5369 static bfd_coff_backend_data ticoff0_swap_table
=
5371 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5372 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5373 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5374 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5375 coff_SWAP_scnhdr_out
,
5376 FILHSZ_V0
, AOUTSZ
, SCNHSZ_V01
, SYMESZ
, AUXESZ
, RELSZ_V0
, LINESZ
, FILNMLEN
,
5377 #ifdef COFF_LONG_FILENAMES
5382 COFF_DEFAULT_LONG_SECTION_NAMES
,
5383 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5384 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5389 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5395 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5396 coff_SWAP_reloc_in
, ticoff0_bad_format_hook
, coff_set_arch_mach_hook
,
5397 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5398 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5399 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5400 coff_classify_symbol
, coff_compute_section_file_positions
,
5401 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5402 coff_adjust_symndx
, coff_link_add_one_symbol
,
5403 coff_link_output_has_begun
, coff_final_link_postscript
,
5409 /* COFF1 differs in section header size. */
5411 static bfd_coff_backend_data ticoff1_swap_table
=
5413 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5414 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5415 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5416 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5417 coff_SWAP_scnhdr_out
,
5418 FILHSZ
, AOUTSZ
, SCNHSZ_V01
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
5419 #ifdef COFF_LONG_FILENAMES
5424 COFF_DEFAULT_LONG_SECTION_NAMES
,
5425 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5426 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5431 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5437 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5438 coff_SWAP_reloc_in
, ticoff1_bad_format_hook
, coff_set_arch_mach_hook
,
5439 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5440 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5441 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5442 coff_classify_symbol
, coff_compute_section_file_positions
,
5443 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5444 coff_adjust_symndx
, coff_link_add_one_symbol
,
5445 coff_link_output_has_begun
, coff_final_link_postscript
,
5446 bfd_pe_print_pdata
/* huh */
5450 #ifdef COFF_WITH_PE_BIGOBJ
5451 /* The UID for bigobj files. */
5453 static const char header_bigobj_classid
[16] =
5455 0xC7, 0xA1, 0xBA, 0xD1,
5459 0xFA, 0xF6, 0x6A, 0xA4, 0xDC, 0xB8
5462 /* Swap routines. */
5465 coff_bigobj_swap_filehdr_in (bfd
* abfd
, void * src
, void * dst
)
5467 struct external_ANON_OBJECT_HEADER_BIGOBJ
*filehdr_src
=
5468 (struct external_ANON_OBJECT_HEADER_BIGOBJ
*) src
;
5469 struct internal_filehdr
*filehdr_dst
= (struct internal_filehdr
*) dst
;
5471 filehdr_dst
->f_magic
= H_GET_16 (abfd
, filehdr_src
->Machine
);
5472 filehdr_dst
->f_nscns
= H_GET_32 (abfd
, filehdr_src
->NumberOfSections
);
5473 filehdr_dst
->f_timdat
= H_GET_32 (abfd
, filehdr_src
->TimeDateStamp
);
5474 filehdr_dst
->f_symptr
=
5475 GET_FILEHDR_SYMPTR (abfd
, filehdr_src
->PointerToSymbolTable
);
5476 filehdr_dst
->f_nsyms
= H_GET_32 (abfd
, filehdr_src
->NumberOfSymbols
);
5477 filehdr_dst
->f_opthdr
= 0;
5478 filehdr_dst
->f_flags
= 0;
5480 /* Check other magic numbers. */
5481 if (H_GET_16 (abfd
, filehdr_src
->Sig1
) != IMAGE_FILE_MACHINE_UNKNOWN
5482 || H_GET_16 (abfd
, filehdr_src
->Sig2
) != 0xffff
5483 || H_GET_16 (abfd
, filehdr_src
->Version
) != 2
5484 || memcmp (filehdr_src
->ClassID
, header_bigobj_classid
, 16) != 0)
5485 filehdr_dst
->f_opthdr
= 0xffff;
5487 /* Note that CLR metadata are ignored. */
5491 coff_bigobj_swap_filehdr_out (bfd
*abfd
, void * in
, void * out
)
5493 struct internal_filehdr
*filehdr_in
= (struct internal_filehdr
*) in
;
5494 struct external_ANON_OBJECT_HEADER_BIGOBJ
*filehdr_out
=
5495 (struct external_ANON_OBJECT_HEADER_BIGOBJ
*) out
;
5497 memset (filehdr_out
, 0, sizeof (*filehdr_out
));
5499 H_PUT_16 (abfd
, IMAGE_FILE_MACHINE_UNKNOWN
, filehdr_out
->Sig1
);
5500 H_PUT_16 (abfd
, 0xffff, filehdr_out
->Sig2
);
5501 H_PUT_16 (abfd
, 2, filehdr_out
->Version
);
5502 memcpy (filehdr_out
->ClassID
, header_bigobj_classid
, 16);
5503 H_PUT_16 (abfd
, filehdr_in
->f_magic
, filehdr_out
->Machine
);
5504 H_PUT_32 (abfd
, filehdr_in
->f_nscns
, filehdr_out
->NumberOfSections
);
5505 H_PUT_32 (abfd
, filehdr_in
->f_timdat
, filehdr_out
->TimeDateStamp
);
5506 PUT_FILEHDR_SYMPTR (abfd
, filehdr_in
->f_symptr
,
5507 filehdr_out
->PointerToSymbolTable
);
5508 H_PUT_32 (abfd
, filehdr_in
->f_nsyms
, filehdr_out
->NumberOfSymbols
);
5510 return bfd_coff_filhsz (abfd
);
5514 coff_bigobj_swap_sym_in (bfd
* abfd
, void * ext1
, void * in1
)
5516 SYMENT_BIGOBJ
*ext
= (SYMENT_BIGOBJ
*) ext1
;
5517 struct internal_syment
*in
= (struct internal_syment
*) in1
;
5519 if (ext
->e
.e_name
[0] == 0)
5521 in
->_n
._n_n
._n_zeroes
= 0;
5522 in
->_n
._n_n
._n_offset
= H_GET_32 (abfd
, ext
->e
.e
.e_offset
);
5526 #if SYMNMLEN != E_SYMNMLEN
5527 #error we need to cope with truncating or extending SYMNMLEN
5529 memcpy (in
->_n
._n_name
, ext
->e
.e_name
, SYMNMLEN
);
5533 in
->n_value
= H_GET_32 (abfd
, ext
->e_value
);
5534 BFD_ASSERT (sizeof (in
->n_scnum
) >= 4);
5535 in
->n_scnum
= H_GET_32 (abfd
, ext
->e_scnum
);
5536 in
->n_type
= H_GET_16 (abfd
, ext
->e_type
);
5537 in
->n_sclass
= H_GET_8 (abfd
, ext
->e_sclass
);
5538 in
->n_numaux
= H_GET_8 (abfd
, ext
->e_numaux
);
5542 coff_bigobj_swap_sym_out (bfd
* abfd
, void * inp
, void * extp
)
5544 struct internal_syment
*in
= (struct internal_syment
*) inp
;
5545 SYMENT_BIGOBJ
*ext
= (SYMENT_BIGOBJ
*) extp
;
5547 if (in
->_n
._n_name
[0] == 0)
5549 H_PUT_32 (abfd
, 0, ext
->e
.e
.e_zeroes
);
5550 H_PUT_32 (abfd
, in
->_n
._n_n
._n_offset
, ext
->e
.e
.e_offset
);
5554 #if SYMNMLEN != E_SYMNMLEN
5555 #error we need to cope with truncating or extending SYMNMLEN
5557 memcpy (ext
->e
.e_name
, in
->_n
._n_name
, SYMNMLEN
);
5561 H_PUT_32 (abfd
, in
->n_value
, ext
->e_value
);
5562 H_PUT_32 (abfd
, in
->n_scnum
, ext
->e_scnum
);
5564 H_PUT_16 (abfd
, in
->n_type
, ext
->e_type
);
5565 H_PUT_8 (abfd
, in
->n_sclass
, ext
->e_sclass
);
5566 H_PUT_8 (abfd
, in
->n_numaux
, ext
->e_numaux
);
5568 return SYMESZ_BIGOBJ
;
5572 coff_bigobj_swap_aux_in (bfd
*abfd
,
5580 AUXENT_BIGOBJ
*ext
= (AUXENT_BIGOBJ
*) ext1
;
5581 union internal_auxent
*in
= (union internal_auxent
*) in1
;
5583 /* Make sure that all fields in the aux structure are
5585 memset (in
, 0, sizeof * in
);
5592 memcpy (in
->x_file
.x_fname
, ext
->File
.Name
,
5593 numaux
* sizeof (AUXENT_BIGOBJ
));
5596 memcpy (in
->x_file
.x_fname
, ext
->File
.Name
, sizeof (ext
->File
.Name
));
5604 in
->x_scn
.x_scnlen
= H_GET_32 (abfd
, ext
->Section
.Length
);
5605 in
->x_scn
.x_nreloc
=
5606 H_GET_16 (abfd
, ext
->Section
.NumberOfRelocations
);
5607 in
->x_scn
.x_nlinno
=
5608 H_GET_16 (abfd
, ext
->Section
.NumberOfLinenumbers
);
5609 in
->x_scn
.x_checksum
= H_GET_32 (abfd
, ext
->Section
.Checksum
);
5610 in
->x_scn
.x_associated
= H_GET_16 (abfd
, ext
->Section
.Number
)
5611 | (H_GET_16 (abfd
, ext
->Section
.HighNumber
) << 16);
5612 in
->x_scn
.x_comdat
= H_GET_8 (abfd
, ext
->Section
.Selection
);
5618 in
->x_sym
.x_tagndx
.l
= H_GET_32 (abfd
, ext
->Sym
.WeakDefaultSymIndex
);
5619 /* Characteristics is ignored. */
5625 coff_bigobj_swap_aux_out (bfd
* abfd
,
5629 int indx ATTRIBUTE_UNUSED
,
5630 int numaux ATTRIBUTE_UNUSED
,
5633 union internal_auxent
* in
= (union internal_auxent
*) inp
;
5634 AUXENT_BIGOBJ
*ext
= (AUXENT_BIGOBJ
*) extp
;
5636 memset (ext
, 0, AUXESZ
);
5641 memcpy (ext
->File
.Name
, in
->x_file
.x_fname
, sizeof (ext
->File
.Name
));
5650 H_PUT_32 (abfd
, in
->x_scn
.x_scnlen
, ext
->Section
.Length
);
5651 H_PUT_16 (abfd
, in
->x_scn
.x_nreloc
,
5652 ext
->Section
.NumberOfRelocations
);
5653 H_PUT_16 (abfd
, in
->x_scn
.x_nlinno
,
5654 ext
->Section
.NumberOfLinenumbers
);
5655 H_PUT_32 (abfd
, in
->x_scn
.x_checksum
, ext
->Section
.Checksum
);
5656 H_PUT_16 (abfd
, in
->x_scn
.x_associated
& 0xffff,
5657 ext
->Section
.Number
);
5658 H_PUT_16 (abfd
, (in
->x_scn
.x_associated
>> 16),
5659 ext
->Section
.HighNumber
);
5660 H_PUT_8 (abfd
, in
->x_scn
.x_comdat
, ext
->Section
.Selection
);
5666 H_PUT_32 (abfd
, in
->x_sym
.x_tagndx
.l
, ext
->Sym
.WeakDefaultSymIndex
);
5667 H_PUT_32 (abfd
, 1, ext
->Sym
.WeakSearchType
);
5672 static bfd_coff_backend_data bigobj_swap_table
=
5674 coff_bigobj_swap_aux_in
, coff_bigobj_swap_sym_in
, coff_SWAP_lineno_in
,
5675 coff_bigobj_swap_aux_out
, coff_bigobj_swap_sym_out
,
5676 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5677 coff_bigobj_swap_filehdr_out
, coff_SWAP_aouthdr_out
,
5678 coff_SWAP_scnhdr_out
,
5679 FILHSZ_BIGOBJ
, AOUTSZ
, SCNHSZ
, SYMESZ_BIGOBJ
, AUXESZ_BIGOBJ
,
5680 RELSZ
, LINESZ
, FILNMLEN_BIGOBJ
,
5682 COFF_DEFAULT_LONG_SECTION_NAMES
,
5683 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5687 coff_bigobj_swap_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5688 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
5689 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5690 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5691 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5692 coff_classify_symbol
, coff_compute_section_file_positions
,
5693 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5694 coff_adjust_symndx
, coff_link_add_one_symbol
,
5695 coff_link_output_has_begun
, coff_final_link_postscript
,
5696 bfd_pe_print_pdata
/* huh */
5699 #endif /* COFF_WITH_PE_BIGOBJ */
5701 #ifndef coff_close_and_cleanup
5702 #define coff_close_and_cleanup _bfd_coff_close_and_cleanup
5705 #ifndef coff_bfd_free_cached_info
5706 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
5709 #ifndef coff_get_section_contents
5710 #define coff_get_section_contents _bfd_generic_get_section_contents
5713 #ifndef coff_bfd_copy_private_symbol_data
5714 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
5717 #ifndef coff_bfd_copy_private_header_data
5718 #define coff_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
5721 #ifndef coff_bfd_copy_private_section_data
5722 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
5725 #ifndef coff_bfd_copy_private_bfd_data
5726 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
5729 #ifndef coff_bfd_merge_private_bfd_data
5730 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
5733 #ifndef coff_bfd_set_private_flags
5734 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
5737 #ifndef coff_bfd_print_private_bfd_data
5738 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
5741 #ifndef coff_bfd_is_local_label_name
5742 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
5745 #ifndef coff_bfd_is_target_special_symbol
5746 #define coff_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false
5749 #ifndef coff_read_minisymbols
5750 #define coff_read_minisymbols _bfd_generic_read_minisymbols
5753 #ifndef coff_minisymbol_to_symbol
5754 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
5757 /* The reloc lookup routine must be supplied by each individual COFF
5759 #ifndef coff_bfd_reloc_type_lookup
5760 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5762 #ifndef coff_bfd_reloc_name_lookup
5763 #define coff_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5766 #ifndef coff_bfd_get_relocated_section_contents
5767 #define coff_bfd_get_relocated_section_contents \
5768 bfd_generic_get_relocated_section_contents
5771 #ifndef coff_bfd_relax_section
5772 #define coff_bfd_relax_section bfd_generic_relax_section
5775 #ifndef coff_bfd_gc_sections
5776 #define coff_bfd_gc_sections bfd_coff_gc_sections
5779 #ifndef coff_bfd_lookup_section_flags
5780 #define coff_bfd_lookup_section_flags bfd_generic_lookup_section_flags
5783 #ifndef coff_bfd_merge_sections
5784 #define coff_bfd_merge_sections bfd_generic_merge_sections
5787 #ifndef coff_bfd_is_group_section
5788 #define coff_bfd_is_group_section bfd_generic_is_group_section
5791 #ifndef coff_bfd_group_name
5792 #define coff_bfd_group_name bfd_coff_group_name
5795 #ifndef coff_bfd_discard_group
5796 #define coff_bfd_discard_group bfd_generic_discard_group
5799 #ifndef coff_section_already_linked
5800 #define coff_section_already_linked \
5801 _bfd_coff_section_already_linked
5804 #ifndef coff_bfd_define_common_symbol
5805 #define coff_bfd_define_common_symbol bfd_generic_define_common_symbol
5808 #ifndef coff_bfd_link_hide_symbol
5809 #define coff_bfd_link_hide_symbol _bfd_generic_link_hide_symbol
5812 #ifndef coff_bfd_define_start_stop
5813 #define coff_bfd_define_start_stop bfd_generic_define_start_stop
5816 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5817 const bfd_target VAR = \
5820 bfd_target_coff_flavour, \
5821 BFD_ENDIAN_BIG, /* Data byte order is big. */ \
5822 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5823 /* object flags */ \
5824 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5825 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5826 /* section flags */ \
5827 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5828 UNDER, /* Leading symbol underscore. */ \
5829 '/', /* AR_pad_char. */ \
5830 15, /* AR_max_namelen. */ \
5831 0, /* match priority. */ \
5833 /* Data conversion functions. */ \
5834 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5835 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5836 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5838 /* Header conversion functions. */ \
5839 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5840 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5841 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5843 { /* bfd_check_format. */ \
5844 _bfd_dummy_target, \
5846 bfd_generic_archive_p, \
5849 { /* bfd_set_format. */ \
5850 _bfd_bool_bfd_false_error, \
5852 _bfd_generic_mkarchive, \
5853 _bfd_bool_bfd_false_error \
5855 { /* bfd_write_contents. */ \
5856 _bfd_bool_bfd_false_error, \
5857 coff_write_object_contents, \
5858 _bfd_write_archive_contents, \
5859 _bfd_bool_bfd_false_error \
5862 BFD_JUMP_TABLE_GENERIC (coff), \
5863 BFD_JUMP_TABLE_COPY (coff), \
5864 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5865 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5866 BFD_JUMP_TABLE_SYMBOLS (coff), \
5867 BFD_JUMP_TABLE_RELOCS (coff), \
5868 BFD_JUMP_TABLE_WRITE (coff), \
5869 BFD_JUMP_TABLE_LINK (coff), \
5870 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5877 #define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5878 const bfd_target VAR = \
5881 bfd_target_coff_flavour, \
5882 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5883 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5884 /* object flags */ \
5885 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5886 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5887 /* section flags */ \
5888 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5889 UNDER, /* Leading symbol underscore. */ \
5890 '/', /* AR_pad_char. */ \
5891 15, /* AR_max_namelen. */ \
5892 0, /* match priority. */ \
5894 /* Data conversion functions. */ \
5895 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5896 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5897 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5899 /* Header conversion functions. */ \
5900 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5901 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5902 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5904 { /* bfd_check_format. */ \
5905 _bfd_dummy_target, \
5907 bfd_generic_archive_p, \
5910 { /* bfd_set_format. */ \
5911 _bfd_bool_bfd_false_error, \
5913 _bfd_generic_mkarchive, \
5914 _bfd_bool_bfd_false_error \
5916 { /* bfd_write_contents. */ \
5917 _bfd_bool_bfd_false_error, \
5918 coff_write_object_contents, \
5919 _bfd_write_archive_contents, \
5920 _bfd_bool_bfd_false_error \
5923 BFD_JUMP_TABLE_GENERIC (coff), \
5924 BFD_JUMP_TABLE_COPY (coff), \
5925 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5926 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5927 BFD_JUMP_TABLE_SYMBOLS (coff), \
5928 BFD_JUMP_TABLE_RELOCS (coff), \
5929 BFD_JUMP_TABLE_WRITE (coff), \
5930 BFD_JUMP_TABLE_LINK (coff), \
5931 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5938 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5939 const bfd_target VAR = \
5942 bfd_target_coff_flavour, \
5943 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5944 BFD_ENDIAN_LITTLE, /* Header byte order is little. */ \
5945 /* object flags */ \
5946 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5947 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5948 /* section flags */ \
5949 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5950 UNDER, /* Leading symbol underscore. */ \
5951 '/', /* AR_pad_char. */ \
5952 15, /* AR_max_namelen. */ \
5953 0, /* match priority. */ \
5955 /* Data conversion functions. */ \
5956 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5957 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5958 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5959 /* Header conversion functions. */ \
5960 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5961 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5962 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5964 { /* bfd_check_format. */ \
5965 _bfd_dummy_target, \
5967 bfd_generic_archive_p, \
5970 { /* bfd_set_format. */ \
5971 _bfd_bool_bfd_false_error, \
5973 _bfd_generic_mkarchive, \
5974 _bfd_bool_bfd_false_error \
5976 { /* bfd_write_contents. */ \
5977 _bfd_bool_bfd_false_error, \
5978 coff_write_object_contents, \
5979 _bfd_write_archive_contents, \
5980 _bfd_bool_bfd_false_error \
5983 BFD_JUMP_TABLE_GENERIC (coff), \
5984 BFD_JUMP_TABLE_COPY (coff), \
5985 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5986 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5987 BFD_JUMP_TABLE_SYMBOLS (coff), \
5988 BFD_JUMP_TABLE_RELOCS (coff), \
5989 BFD_JUMP_TABLE_WRITE (coff), \
5990 BFD_JUMP_TABLE_LINK (coff), \
5991 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \