1 /* Support for the generic parts of most COFF variants, for BFD.
2 Copyright (C) 1990-2014 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 88k bcs coff format is implemented in the file
36 @file{coff-m88k.c}. This file @code{#include}s
37 @file{coff/m88k.h} which defines the external structure of the
38 coff format for the 88k, and @file{coff/internal.h} which
39 defines the internal structure. @file{coff-m88k.c} also
40 defines the relocations used by the 88k format
43 The Intel i960 processor version of coff is implemented in
44 @file{coff-i960.c}. This file has the same structure as
45 @file{coff-m88k.c}, except that it includes @file{coff/i960.h}
46 rather than @file{coff-m88k.h}.
49 Porting to a new version of coff
51 The recommended method is to select from the existing
52 implementations the version of coff which is most like the one
53 you want to use. For example, we'll say that i386 coff is
54 the one you select, and that your coff flavour is called foo.
55 Copy @file{i386coff.c} to @file{foocoff.c}, copy
56 @file{../include/coff/i386.h} to @file{../include/coff/foo.h},
57 and add the lines to @file{targets.c} and @file{Makefile.in}
58 so that your new back end is used. Alter the shapes of the
59 structures in @file{../include/coff/foo.h} so that they match
60 what you need. You will probably also have to add
61 @code{#ifdef}s to the code in @file{coff/internal.h} and
62 @file{coffcode.h} if your version of coff is too wild.
64 You can verify that your new BFD backend works quite simply by
65 building @file{objdump} from the @file{binutils} directory,
66 and making sure that its version of what's going on and your
67 host system's idea (assuming it has the pretty standard coff
68 dump utility, usually called @code{att-dump} or just
69 @code{dump}) are the same. Then clean up your code, and send
70 what you've done to Cygnus. Then your stuff will be in the
71 next release, and you won't have to keep integrating it.
74 How the coff backend works
79 The Coff backend is split into generic routines that are
80 applicable to any Coff target and routines that are specific
81 to a particular target. The target-specific routines are
82 further split into ones which are basically the same for all
83 Coff targets except that they use the external symbol format
84 or use different values for certain constants.
86 The generic routines are in @file{coffgen.c}. These routines
87 work for any Coff target. They use some hooks into the target
88 specific code; the hooks are in a @code{bfd_coff_backend_data}
89 structure, one of which exists for each target.
91 The essentially similar target-specific routines are in
92 @file{coffcode.h}. This header file includes executable C code.
93 The various Coff targets first include the appropriate Coff
94 header file, make any special defines that are needed, and
95 then include @file{coffcode.h}.
97 Some of the Coff targets then also have additional routines in
98 the target source file itself.
100 For example, @file{coff-i960.c} includes
101 @file{coff/internal.h} and @file{coff/i960.h}. It then
102 defines a few constants, such as @code{I960}, and includes
103 @file{coffcode.h}. Since the i960 has complex relocation
104 types, @file{coff-i960.c} also includes some code to
105 manipulate the i960 relocs. This code is not in
106 @file{coffcode.h} because it would not be used by any other
110 Coff long section names
112 In the standard Coff object format, section names are limited to
113 the eight bytes available in the @code{s_name} field of the
114 @code{SCNHDR} section header structure. The format requires the
115 field to be NUL-padded, but not necessarily NUL-terminated, so
116 the longest section names permitted are a full eight characters.
118 The Microsoft PE variants of the Coff object file format add
119 an extension to support the use of long section names. This
120 extension is defined in section 4 of the Microsoft PE/COFF
121 specification (rev 8.1). If a section name is too long to fit
122 into the section header's @code{s_name} field, it is instead
123 placed into the string table, and the @code{s_name} field is
124 filled with a slash ("/") followed by the ASCII decimal
125 representation of the offset of the full name relative to the
128 Note that this implies that the extension can only be used in object
129 files, as executables do not contain a string table. The standard
130 specifies that long section names from objects emitted into executable
131 images are to be truncated.
133 However, as a GNU extension, BFD can generate executable images
134 that contain a string table and long section names. This
135 would appear to be technically valid, as the standard only says
136 that Coff debugging information is deprecated, not forbidden,
137 and in practice it works, although some tools that parse PE files
138 expecting the MS standard format may become confused; @file{PEview} is
141 The functionality is supported in BFD by code implemented under
142 the control of the macro @code{COFF_LONG_SECTION_NAMES}. If not
143 defined, the format does not support long section names in any way.
144 If defined, it is used to initialise a flag,
145 @code{_bfd_coff_long_section_names}, and a hook function pointer,
146 @code{_bfd_coff_set_long_section_names}, in the Coff backend data
147 structure. The flag controls the generation of long section names
148 in output BFDs at runtime; if it is false, as it will be by default
149 when generating an executable image, long section names are truncated;
150 if true, the long section names extension is employed. The hook
151 points to a function that allows the value of the flag to be altered
152 at runtime, on formats that support long section names at all; on
153 other formats it points to a stub that returns an error indication.
155 With input BFDs, the flag is set according to whether any long section
156 names are detected while reading the section headers. For a completely
157 new BFD, the flag is set to the default for the target format. This
158 information can be used by a client of the BFD library when deciding
159 what output format to generate, and means that a BFD that is opened
160 for read and subsequently converted to a writeable BFD and modified
161 in-place will retain whatever format it had on input.
163 If @code{COFF_LONG_SECTION_NAMES} is simply defined (blank), or is
164 defined to the value "1", then long section names are enabled by
165 default; if it is defined to the value zero, they are disabled by
166 default (but still accepted in input BFDs). The header @file{coffcode.h}
167 defines a macro, @code{COFF_DEFAULT_LONG_SECTION_NAMES}, which is
168 used in the backends to initialise the backend data structure fields
169 appropriately; see the comments for further detail.
174 Each flavour of coff supported in BFD has its own header file
175 describing the external layout of the structures. There is also
176 an internal description of the coff layout, in
177 @file{coff/internal.h}. A major function of the
178 coff backend is swapping the bytes and twiddling the bits to
179 translate the external form of the structures into the normal
180 internal form. This is all performed in the
181 @code{bfd_swap}_@i{thing}_@i{direction} routines. Some
182 elements are different sizes between different versions of
183 coff; it is the duty of the coff version specific include file
184 to override the definitions of various packing routines in
185 @file{coffcode.h}. E.g., the size of line number entry in coff is
186 sometimes 16 bits, and sometimes 32 bits. @code{#define}ing
187 @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the
188 correct one. No doubt, some day someone will find a version of
189 coff which has a varying field size not catered to at the
190 moment. To port BFD, that person will have to add more @code{#defines}.
191 Three of the bit twiddling routines are exported to
192 @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in}
193 and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol
194 table on its own, but uses BFD to fix things up. More of the
195 bit twiddlers are exported for @code{gas};
196 @code{coff_swap_aux_out}, @code{coff_swap_sym_out},
197 @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out},
198 @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out},
199 @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track
200 of all the symbol table and reloc drudgery itself, thereby
201 saving the internal BFD overhead, but uses BFD to swap things
202 on the way out, making cross ports much safer. Doing so also
203 allows BFD (and thus the linker) to use the same header files
204 as @code{gas}, which makes one avenue to disaster disappear.
209 The simple canonical form for symbols used by BFD is not rich
210 enough to keep all the information available in a coff symbol
211 table. The back end gets around this problem by keeping the original
212 symbol table around, "behind the scenes".
214 When a symbol table is requested (through a call to
215 @code{bfd_canonicalize_symtab}), a request gets through to
216 @code{coff_get_normalized_symtab}. This reads the symbol table from
217 the coff file and swaps all the structures inside into the
218 internal form. It also fixes up all the pointers in the table
219 (represented in the file by offsets from the first symbol in
220 the table) into physical pointers to elements in the new
221 internal table. This involves some work since the meanings of
222 fields change depending upon context: a field that is a
223 pointer to another structure in the symbol table at one moment
224 may be the size in bytes of a structure at the next. Another
225 pass is made over the table. All symbols which mark file names
226 (<<C_FILE>> symbols) are modified so that the internal
227 string points to the value in the auxent (the real filename)
228 rather than the normal text associated with the symbol
231 At this time the symbol names are moved around. Coff stores
232 all symbols less than nine characters long physically
233 within the symbol table; longer strings are kept at the end of
234 the file in the string table. This pass moves all strings
235 into memory and replaces them with pointers to the strings.
237 The symbol table is massaged once again, this time to create
238 the canonical table used by the BFD application. Each symbol
239 is inspected in turn, and a decision made (using the
240 @code{sclass} field) about the various flags to set in the
241 @code{asymbol}. @xref{Symbols}. The generated canonical table
242 shares strings with the hidden internal symbol table.
244 Any linenumbers are read from the coff file too, and attached
245 to the symbols which own the functions the linenumbers belong to.
250 Writing a symbol to a coff file which didn't come from a coff
251 file will lose any debugging information. The @code{asymbol}
252 structure remembers the BFD from which the symbol was taken, and on
253 output the back end makes sure that the same destination target as
254 source target is present.
256 When the symbols have come from a coff file then all the
257 debugging information is preserved.
259 Symbol tables are provided for writing to the back end in a
260 vector of pointers to pointers. This allows applications like
261 the linker to accumulate and output large symbol tables
262 without having to do too much byte copying.
264 This function runs through the provided symbol table and
265 patches each symbol marked as a file place holder
266 (@code{C_FILE}) to point to the next file place holder in the
267 list. It also marks each @code{offset} field in the list with
268 the offset from the first symbol of the current symbol.
270 Another function of this procedure is to turn the canonical
271 value form of BFD into the form used by coff. Internally, BFD
272 expects symbol values to be offsets from a section base; so a
273 symbol physically at 0x120, but in a section starting at
274 0x100, would have the value 0x20. Coff expects symbols to
275 contain their final value, so symbols have their values
276 changed at this point to reflect their sum with their owning
277 section. This transformation uses the
278 <<output_section>> field of the @code{asymbol}'s
279 @code{asection} @xref{Sections}.
281 o <<coff_mangle_symbols>>
283 This routine runs though the provided symbol table and uses
284 the offsets generated by the previous pass and the pointers
285 generated when the symbol table was read in to create the
286 structured hierarchy required by coff. It changes each pointer
287 to a symbol into the index into the symbol table of the asymbol.
289 o <<coff_write_symbols>>
291 This routine runs through the symbol table and patches up the
292 symbols from their internal form into the coff way, calls the
293 bit twiddlers, and writes out the table to the file.
302 The hidden information for an <<asymbol>> is described in a
303 <<combined_entry_type>>:
307 .typedef struct coff_ptr_struct
309 . {* Remembers the offset from the first symbol in the file for
310 . this symbol. Generated by coff_renumber_symbols. *}
311 . unsigned int offset;
313 . {* Should the value of this symbol be renumbered. Used for
314 . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *}
315 . unsigned int fix_value : 1;
317 . {* Should the tag field of this symbol be renumbered.
318 . Created by coff_pointerize_aux. *}
319 . unsigned int fix_tag : 1;
321 . {* Should the endidx field of this symbol be renumbered.
322 . Created by coff_pointerize_aux. *}
323 . unsigned int fix_end : 1;
325 . {* Should the x_csect.x_scnlen field be renumbered.
326 . Created by coff_pointerize_aux. *}
327 . unsigned int fix_scnlen : 1;
329 . {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the
330 . index into the line number entries. Set by coff_slurp_symbol_table. *}
331 . unsigned int fix_line : 1;
333 . {* The container for the symbol structure as read and translated
337 . union internal_auxent auxent;
338 . struct internal_syment syment;
340 .} combined_entry_type;
343 .{* Each canonical asymbol really looks like this: *}
345 .typedef struct coff_symbol_struct
347 . {* The actual symbol which the rest of BFD works with *}
350 . {* A pointer to the hidden information for this symbol *}
351 . combined_entry_type *native;
353 . {* A pointer to the linenumber information for this symbol *}
354 . struct lineno_cache_entry *lineno;
356 . {* Have the line numbers been relocated yet ? *}
357 . bfd_boolean done_lineno;
362 #include "libiberty.h"
367 #include "coffswap.h"
370 #define STRING_SIZE_SIZE 4
372 #define DOT_DEBUG ".debug"
373 #define DOT_ZDEBUG ".zdebug"
374 #define GNU_LINKONCE_WI ".gnu.linkonce.wi."
375 #define GNU_LINKONCE_WT ".gnu.linkonce.wt."
376 #define DOT_RELOC ".reloc"
378 #if defined (COFF_LONG_SECTION_NAMES)
379 /* Needed to expand the inputs to BLANKOR1TOODD. */
380 #define COFFLONGSECTIONCATHELPER(x,y) x ## y
381 /* If the input macro Y is blank or '1', return an odd number; if it is
382 '0', return an even number. Result undefined in all other cases. */
383 #define BLANKOR1TOODD(y) COFFLONGSECTIONCATHELPER(1,y)
384 /* Defined to numerical 0 or 1 according to whether generation of long
385 section names is disabled or enabled by default. */
386 #define COFF_ENABLE_LONG_SECTION_NAMES (BLANKOR1TOODD(COFF_LONG_SECTION_NAMES) & 1)
387 /* Where long section names are supported, we allow them to be enabled
388 and disabled at runtime, so select an appropriate hook function for
389 _bfd_coff_set_long_section_names. */
390 #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_allowed
391 #else /* !defined (COFF_LONG_SECTION_NAMES) */
392 /* If long section names are not supported, this stub disallows any
393 attempt to enable them at run-time. */
394 #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_disallowed
395 #endif /* defined (COFF_LONG_SECTION_NAMES) */
397 /* Define a macro that can be used to initialise both the fields relating
398 to long section names in the backend data struct simultaneously. */
399 #if COFF_ENABLE_LONG_SECTION_NAMES
400 #define COFF_DEFAULT_LONG_SECTION_NAMES (TRUE), COFF_LONG_SECTION_NAMES_SETTER
401 #else /* !COFF_ENABLE_LONG_SECTION_NAMES */
402 #define COFF_DEFAULT_LONG_SECTION_NAMES (FALSE), COFF_LONG_SECTION_NAMES_SETTER
403 #endif /* COFF_ENABLE_LONG_SECTION_NAMES */
405 #if defined (COFF_LONG_SECTION_NAMES)
406 static bfd_boolean bfd_coff_set_long_section_names_allowed
408 #else /* !defined (COFF_LONG_SECTION_NAMES) */
409 static bfd_boolean bfd_coff_set_long_section_names_disallowed
411 #endif /* defined (COFF_LONG_SECTION_NAMES) */
412 static long sec_to_styp_flags
413 (const char *, flagword
);
414 static bfd_boolean styp_to_sec_flags
415 (bfd
*, void *, const char *, asection
*, flagword
*);
416 static bfd_boolean coff_bad_format_hook
418 static void coff_set_custom_section_alignment
419 (bfd
*, asection
*, const struct coff_section_alignment_entry
*,
421 static bfd_boolean coff_new_section_hook
423 static bfd_boolean coff_set_arch_mach_hook
425 static bfd_boolean coff_write_relocs
427 static bfd_boolean coff_set_flags
428 (bfd
*, unsigned int *, unsigned short *);
429 static bfd_boolean coff_set_arch_mach
430 (bfd
*, enum bfd_architecture
, unsigned long) ATTRIBUTE_UNUSED
;
431 static bfd_boolean coff_compute_section_file_positions
433 static bfd_boolean coff_write_object_contents
434 (bfd
*) ATTRIBUTE_UNUSED
;
435 static bfd_boolean coff_set_section_contents
436 (bfd
*, asection
*, const void *, file_ptr
, bfd_size_type
);
437 static void * buy_and_read
438 (bfd
*, file_ptr
, bfd_size_type
);
439 static bfd_boolean coff_slurp_line_table
441 static bfd_boolean coff_slurp_symbol_table
443 static enum coff_symbol_classification coff_classify_symbol
444 (bfd
*, struct internal_syment
*);
445 static bfd_boolean coff_slurp_reloc_table
446 (bfd
*, asection
*, asymbol
**);
447 static long coff_canonicalize_reloc
448 (bfd
*, asection
*, arelent
**, asymbol
**);
449 #ifndef coff_mkobject_hook
450 static void * coff_mkobject_hook
451 (bfd
*, void *, void *);
454 static flagword handle_COMDAT
455 (bfd
*, flagword
, void *, const char *, asection
*);
457 #ifdef COFF_IMAGE_WITH_PE
458 static bfd_boolean coff_read_word
459 (bfd
*, unsigned int *);
460 static unsigned int coff_compute_checksum
462 static bfd_boolean coff_apply_checksum
466 static bfd_boolean ticoff0_bad_format_hook
468 static bfd_boolean ticoff1_bad_format_hook
472 /* void warning(); */
474 #if defined (COFF_LONG_SECTION_NAMES)
476 bfd_coff_set_long_section_names_allowed (bfd
*abfd
, int enable
)
478 coff_backend_info (abfd
)->_bfd_coff_long_section_names
= enable
;
481 #else /* !defined (COFF_LONG_SECTION_NAMES) */
483 bfd_coff_set_long_section_names_disallowed (bfd
*abfd
, int enable
)
489 #endif /* defined (COFF_LONG_SECTION_NAMES) */
491 /* Return a word with STYP_* (scnhdr.s_flags) flags set to represent
492 the incoming SEC_* flags. The inverse of this function is
493 styp_to_sec_flags(). NOTE: If you add to/change this routine, you
494 should probably mirror the changes in styp_to_sec_flags(). */
498 /* Macros for setting debugging flags. */
501 #define STYP_XCOFF_DEBUG STYP_DEBUG
503 #define STYP_XCOFF_DEBUG STYP_INFO
506 #ifdef COFF_ALIGN_IN_S_FLAGS
507 #define STYP_DEBUG_INFO STYP_DSECT
509 #define STYP_DEBUG_INFO STYP_INFO
513 sec_to_styp_flags (const char *sec_name
, flagword sec_flags
)
517 if (!strcmp (sec_name
, _TEXT
))
519 styp_flags
= STYP_TEXT
;
521 else if (!strcmp (sec_name
, _DATA
))
523 styp_flags
= STYP_DATA
;
525 else if (!strcmp (sec_name
, _BSS
))
527 styp_flags
= STYP_BSS
;
530 else if (!strcmp (sec_name
, _COMMENT
))
532 styp_flags
= STYP_INFO
;
533 #endif /* _COMMENT */
536 else if (!strcmp (sec_name
, _LIB
))
538 styp_flags
= STYP_LIB
;
542 else if (!strcmp (sec_name
, _LIT
))
544 styp_flags
= STYP_LIT
;
547 else if (CONST_STRNEQ (sec_name
, DOT_DEBUG
)
548 || CONST_STRNEQ (sec_name
, DOT_ZDEBUG
))
550 /* Handle the XCOFF debug section and DWARF2 debug sections. */
552 styp_flags
= STYP_XCOFF_DEBUG
;
554 styp_flags
= STYP_DEBUG_INFO
;
556 else if (CONST_STRNEQ (sec_name
, ".stab"))
558 styp_flags
= STYP_DEBUG_INFO
;
560 #ifdef COFF_LONG_SECTION_NAMES
561 else if (CONST_STRNEQ (sec_name
, GNU_LINKONCE_WI
)
562 || CONST_STRNEQ (sec_name
, GNU_LINKONCE_WT
))
564 styp_flags
= STYP_DEBUG_INFO
;
568 else if (!strcmp (sec_name
, _PAD
))
570 styp_flags
= STYP_PAD
;
572 else if (!strcmp (sec_name
, _LOADER
))
574 styp_flags
= STYP_LOADER
;
576 else if (!strcmp (sec_name
, _EXCEPT
))
578 styp_flags
= STYP_EXCEPT
;
580 else if (!strcmp (sec_name
, _TYPCHK
))
582 styp_flags
= STYP_TYPCHK
;
584 else if (sec_flags
& SEC_DEBUGGING
)
588 for (i
= 0; i
< XCOFF_DWSECT_NBR_NAMES
; i
++)
589 if (!strcmp (sec_name
, xcoff_dwsect_names
[i
].name
))
591 styp_flags
= STYP_DWARF
| xcoff_dwsect_names
[i
].flag
;
596 /* Try and figure out what it should be */
597 else if (sec_flags
& SEC_CODE
)
599 styp_flags
= STYP_TEXT
;
601 else if (sec_flags
& SEC_DATA
)
603 styp_flags
= STYP_DATA
;
605 else if (sec_flags
& SEC_READONLY
)
607 #ifdef STYP_LIT /* 29k readonly text/data section */
608 styp_flags
= STYP_LIT
;
610 styp_flags
= STYP_TEXT
;
611 #endif /* STYP_LIT */
613 else if (sec_flags
& SEC_LOAD
)
615 styp_flags
= STYP_TEXT
;
617 else if (sec_flags
& SEC_ALLOC
)
619 styp_flags
= STYP_BSS
;
623 if (sec_flags
& SEC_TIC54X_CLINK
)
624 styp_flags
|= STYP_CLINK
;
628 if (sec_flags
& SEC_TIC54X_BLOCK
)
629 styp_flags
|= STYP_BLOCK
;
633 if ((sec_flags
& (SEC_NEVER_LOAD
| SEC_COFF_SHARED_LIBRARY
)) != 0)
634 styp_flags
|= STYP_NOLOAD
;
640 #else /* COFF_WITH_PE */
642 /* The PE version; see above for the general comments. The non-PE
643 case seems to be more guessing, and breaks PE format; specifically,
644 .rdata is readonly, but it sure ain't text. Really, all this
645 should be set up properly in gas (or whatever assembler is in use),
646 and honor whatever objcopy/strip, etc. sent us as input. */
649 sec_to_styp_flags (const char *sec_name
, flagword sec_flags
)
652 bfd_boolean is_dbg
= FALSE
;
654 if (CONST_STRNEQ (sec_name
, DOT_DEBUG
)
655 || CONST_STRNEQ (sec_name
, DOT_ZDEBUG
)
656 #ifdef COFF_LONG_SECTION_NAMES
657 || CONST_STRNEQ (sec_name
, GNU_LINKONCE_WI
)
658 || CONST_STRNEQ (sec_name
, GNU_LINKONCE_WT
)
660 || CONST_STRNEQ (sec_name
, ".stab"))
663 /* caution: there are at least three groups of symbols that have
664 very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*.
665 SEC_* are the BFD internal flags, used for generic BFD
666 information. STYP_* are the COFF section flags which appear in
667 COFF files. IMAGE_SCN_* are the PE section flags which appear in
668 PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap,
669 but there are more IMAGE_SCN_* flags. */
671 /* FIXME: There is no gas syntax to specify the debug section flag. */
674 sec_flags
&= (SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
675 | SEC_LINK_DUPLICATES_SAME_CONTENTS
676 | SEC_LINK_DUPLICATES_SAME_SIZE
);
677 sec_flags
|= SEC_DEBUGGING
| SEC_READONLY
;
683 if ((sec_flags
& SEC_CODE
) != 0)
684 styp_flags
|= IMAGE_SCN_CNT_CODE
;
685 if ((sec_flags
& (SEC_DATA
| SEC_DEBUGGING
)) != 0)
686 styp_flags
|= IMAGE_SCN_CNT_INITIALIZED_DATA
;
687 if ((sec_flags
& SEC_ALLOC
) != 0 && (sec_flags
& SEC_LOAD
) == 0)
688 styp_flags
|= IMAGE_SCN_CNT_UNINITIALIZED_DATA
; /* ==STYP_BSS */
690 /* skip constRUCTOR */
692 if ((sec_flags
& SEC_IS_COMMON
) != 0)
693 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
694 if ((sec_flags
& SEC_DEBUGGING
) != 0)
695 styp_flags
|= IMAGE_SCN_MEM_DISCARDABLE
;
696 if ((sec_flags
& SEC_EXCLUDE
) != 0 && !is_dbg
)
697 styp_flags
|= IMAGE_SCN_LNK_REMOVE
;
698 if ((sec_flags
& SEC_NEVER_LOAD
) != 0 && !is_dbg
)
699 styp_flags
|= IMAGE_SCN_LNK_REMOVE
;
702 if (sec_flags
& SEC_LINK_ONCE
)
703 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
705 & (SEC_LINK_DUPLICATES_DISCARD
| SEC_LINK_DUPLICATES_SAME_CONTENTS
706 | SEC_LINK_DUPLICATES_SAME_SIZE
)) != 0)
707 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
709 /* skip LINKER_CREATED */
711 if ((sec_flags
& SEC_COFF_NOREAD
) == 0)
712 styp_flags
|= IMAGE_SCN_MEM_READ
; /* Invert NOREAD for read. */
713 if ((sec_flags
& SEC_READONLY
) == 0)
714 styp_flags
|= IMAGE_SCN_MEM_WRITE
; /* Invert READONLY for write. */
715 if (sec_flags
& SEC_CODE
)
716 styp_flags
|= IMAGE_SCN_MEM_EXECUTE
; /* CODE->EXECUTE. */
717 if (sec_flags
& SEC_COFF_SHARED
)
718 styp_flags
|= IMAGE_SCN_MEM_SHARED
; /* Shared remains meaningful. */
723 #endif /* COFF_WITH_PE */
725 /* Return a word with SEC_* flags set to represent the incoming STYP_*
726 flags (from scnhdr.s_flags). The inverse of this function is
727 sec_to_styp_flags(). NOTE: If you add to/change this routine, you
728 should probably mirror the changes in sec_to_styp_flags(). */
733 styp_to_sec_flags (bfd
*abfd ATTRIBUTE_UNUSED
,
736 asection
*section ATTRIBUTE_UNUSED
,
739 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
740 long styp_flags
= internal_s
->s_flags
;
741 flagword sec_flags
= 0;
744 if (styp_flags
& STYP_BLOCK
)
745 sec_flags
|= SEC_TIC54X_BLOCK
;
749 if (styp_flags
& STYP_CLINK
)
750 sec_flags
|= SEC_TIC54X_CLINK
;
754 if (styp_flags
& STYP_NOLOAD
)
755 sec_flags
|= SEC_NEVER_LOAD
;
756 #endif /* STYP_NOLOAD */
758 /* For 386 COFF, at least, an unloadable text or data section is
759 actually a shared library section. */
760 if (styp_flags
& STYP_TEXT
)
762 if (sec_flags
& SEC_NEVER_LOAD
)
763 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
765 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
767 else if (styp_flags
& STYP_DATA
)
769 if (sec_flags
& SEC_NEVER_LOAD
)
770 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
772 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
774 else if (styp_flags
& STYP_BSS
)
776 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
777 if (sec_flags
& SEC_NEVER_LOAD
)
778 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
781 sec_flags
|= SEC_ALLOC
;
783 else if (styp_flags
& STYP_INFO
)
785 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
786 defined. coff_compute_section_file_positions uses
787 COFF_PAGE_SIZE to ensure that the low order bits of the
788 section VMA and the file offset match. If we don't know
789 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
790 and demand page loading of the file will fail. */
791 #if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS)
792 sec_flags
|= SEC_DEBUGGING
;
795 else if (styp_flags
& STYP_PAD
)
798 else if (styp_flags
& STYP_EXCEPT
)
799 sec_flags
|= SEC_LOAD
;
800 else if (styp_flags
& STYP_LOADER
)
801 sec_flags
|= SEC_LOAD
;
802 else if (styp_flags
& STYP_TYPCHK
)
803 sec_flags
|= SEC_LOAD
;
804 else if (styp_flags
& STYP_DWARF
)
805 sec_flags
|= SEC_DEBUGGING
;
807 else if (strcmp (name
, _TEXT
) == 0)
809 if (sec_flags
& SEC_NEVER_LOAD
)
810 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
812 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
814 else if (strcmp (name
, _DATA
) == 0)
816 if (sec_flags
& SEC_NEVER_LOAD
)
817 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
819 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
821 else if (strcmp (name
, _BSS
) == 0)
823 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
824 if (sec_flags
& SEC_NEVER_LOAD
)
825 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
828 sec_flags
|= SEC_ALLOC
;
830 else if (CONST_STRNEQ (name
, DOT_DEBUG
)
831 || CONST_STRNEQ (name
, DOT_ZDEBUG
)
833 || strcmp (name
, _COMMENT
) == 0
835 #ifdef COFF_LONG_SECTION_NAMES
836 || CONST_STRNEQ (name
, GNU_LINKONCE_WI
)
837 || CONST_STRNEQ (name
, GNU_LINKONCE_WT
)
839 || CONST_STRNEQ (name
, ".stab"))
841 #ifdef COFF_PAGE_SIZE
842 sec_flags
|= SEC_DEBUGGING
;
846 else if (strcmp (name
, _LIB
) == 0)
850 else if (strcmp (name
, _LIT
) == 0)
851 sec_flags
= SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
;
854 sec_flags
|= SEC_ALLOC
| SEC_LOAD
;
856 #ifdef STYP_LIT /* A29k readonly text/data section type. */
857 if ((styp_flags
& STYP_LIT
) == STYP_LIT
)
858 sec_flags
= (SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
);
859 #endif /* STYP_LIT */
861 #ifdef STYP_OTHER_LOAD /* Other loaded sections. */
862 if (styp_flags
& STYP_OTHER_LOAD
)
863 sec_flags
= (SEC_LOAD
| SEC_ALLOC
);
864 #endif /* STYP_SDATA */
866 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
867 /* As a GNU extension, if the name begins with .gnu.linkonce, we
868 only link a single copy of the section. This is used to support
869 g++. g++ will emit each template expansion in its own section.
870 The symbols will be defined as weak, so that multiple definitions
871 are permitted. The GNU linker extension is to actually discard
872 all but one of the sections. */
873 if (CONST_STRNEQ (name
, ".gnu.linkonce"))
874 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
877 if (flags_ptr
== NULL
)
880 * flags_ptr
= sec_flags
;
884 #else /* COFF_WITH_PE */
887 handle_COMDAT (bfd
* abfd
,
893 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
894 bfd_byte
*esymstart
, *esym
, *esymend
;
896 char *target_name
= NULL
;
898 sec_flags
|= SEC_LINK_ONCE
;
900 /* Unfortunately, the PE format stores essential information in
901 the symbol table, of all places. We need to extract that
902 information now, so that objdump and the linker will know how
903 to handle the section without worrying about the symbols. We
904 can't call slurp_symtab, because the linker doesn't want the
907 /* COMDAT sections are special. The first symbol is the section
908 symbol, which tells what kind of COMDAT section it is. The
909 second symbol is the "comdat symbol" - the one with the
910 unique name. GNU uses the section symbol for the unique
911 name; MS uses ".text" for every comdat section. Sigh. - DJ */
913 /* This is not mirrored in sec_to_styp_flags(), but there
914 doesn't seem to be a need to, either, and it would at best be
917 if (! _bfd_coff_get_external_symbols (abfd
))
920 esymstart
= esym
= (bfd_byte
*) obj_coff_external_syms (abfd
);
921 esymend
= esym
+ obj_raw_syment_count (abfd
) * bfd_coff_symesz (abfd
);
923 while (esym
< esymend
)
925 struct internal_syment isym
;
926 char buf
[SYMNMLEN
+ 1];
929 bfd_coff_swap_sym_in (abfd
, esym
, & isym
);
931 if (sizeof (internal_s
->s_name
) > SYMNMLEN
)
933 /* This case implies that the matching
934 symbol name will be in the string table. */
938 if (isym
.n_scnum
== section
->target_index
)
940 /* According to the MSVC documentation, the first
941 TWO entries with the section # are both of
942 interest to us. The first one is the "section
943 symbol" (section name). The second is the comdat
944 symbol name. Here, we've found the first
945 qualifying entry; we distinguish it from the
946 second with a state flag.
948 In the case of gas-generated (at least until that
949 is fixed) .o files, it isn't necessarily the
950 second one. It may be some other later symbol.
952 Since gas also doesn't follow MS conventions and
953 emits the section similar to .text$<name>, where
954 <something> is the name we're looking for, we
955 distinguish the two as follows:
957 If the section name is simply a section name (no
958 $) we presume it's MS-generated, and look at
959 precisely the second symbol for the comdat name.
960 If the section name has a $, we assume it's
961 gas-generated, and look for <something> (whatever
962 follows the $) as the comdat symbol. */
964 /* All 3 branches use this. */
965 symname
= _bfd_coff_internal_syment_name (abfd
, &isym
, buf
);
974 /* The first time we've seen the symbol. */
975 union internal_auxent aux
;
977 /* If it isn't the stuff we're expecting, die;
978 The MS documentation is vague, but it
979 appears that the second entry serves BOTH
980 as the comdat symbol and the defining
981 symbol record (either C_STAT or C_EXT,
982 possibly with an aux entry with debug
983 information if it's a function.) It
984 appears the only way to find the second one
985 is to count. (On Intel, they appear to be
986 adjacent, but on Alpha, they have been
989 Here, we think we've found the first one,
990 but there's some checking we can do to be
993 if (! ((isym
.n_sclass
== C_STAT
994 || isym
.n_sclass
== C_EXT
)
995 && BTYPE (isym
.n_type
) == T_NULL
996 && isym
.n_value
== 0))
999 /* FIXME LATER: MSVC generates section names
1000 like .text for comdats. Gas generates
1001 names like .text$foo__Fv (in the case of a
1002 function). See comment above for more. */
1004 if (isym
.n_sclass
== C_STAT
&& strcmp (name
, symname
) != 0)
1005 _bfd_error_handler (_("%B: warning: COMDAT symbol '%s' does not match section name '%s'"),
1006 abfd
, symname
, name
);
1010 /* This is the section symbol. */
1011 bfd_coff_swap_aux_in (abfd
, (esym
+ bfd_coff_symesz (abfd
)),
1012 isym
.n_type
, isym
.n_sclass
,
1013 0, isym
.n_numaux
, & aux
);
1015 target_name
= strchr (name
, '$');
1016 if (target_name
!= NULL
)
1024 /* FIXME: Microsoft uses NODUPLICATES and
1025 ASSOCIATIVE, but gnu uses ANY and
1026 SAME_SIZE. Unfortunately, gnu doesn't do
1027 the comdat symbols right. So, until we can
1028 fix it to do the right thing, we are
1029 temporarily disabling comdats for the MS
1030 types (they're used in DLLs and C++, but we
1031 don't support *their* C++ libraries anyway
1034 /* Cygwin does not follow the MS style, and
1035 uses ANY and SAME_SIZE where NODUPLICATES
1036 and ASSOCIATIVE should be used. For
1037 Interix, we just do the right thing up
1040 switch (aux
.x_scn
.x_comdat
)
1042 case IMAGE_COMDAT_SELECT_NODUPLICATES
:
1043 #ifdef STRICT_PE_FORMAT
1044 sec_flags
|= SEC_LINK_DUPLICATES_ONE_ONLY
;
1046 sec_flags
&= ~SEC_LINK_ONCE
;
1050 case IMAGE_COMDAT_SELECT_ANY
:
1051 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1054 case IMAGE_COMDAT_SELECT_SAME_SIZE
:
1055 sec_flags
|= SEC_LINK_DUPLICATES_SAME_SIZE
;
1058 case IMAGE_COMDAT_SELECT_EXACT_MATCH
:
1059 /* Not yet fully implemented ??? */
1060 sec_flags
|= SEC_LINK_DUPLICATES_SAME_CONTENTS
;
1063 /* debug$S gets this case; other
1066 /* There may be no symbol... we'll search
1067 the whole table... Is this the right
1068 place to play this game? Or should we do
1069 it when reading it in. */
1070 case IMAGE_COMDAT_SELECT_ASSOCIATIVE
:
1071 #ifdef STRICT_PE_FORMAT
1072 /* FIXME: This is not currently implemented. */
1073 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1075 sec_flags
&= ~SEC_LINK_ONCE
;
1079 default: /* 0 means "no symbol" */
1080 /* debug$F gets this case; other
1082 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1089 /* Gas mode: the first matching on partial name. */
1091 #ifndef TARGET_UNDERSCORE
1092 #define TARGET_UNDERSCORE 0
1094 /* Is this the name we're looking for ? */
1095 if (strcmp (target_name
,
1096 symname
+ (TARGET_UNDERSCORE
? 1 : 0)) != 0)
1098 /* Not the name we're looking for */
1099 esym
+= (isym
.n_numaux
+ 1) * bfd_coff_symesz (abfd
);
1104 /* MSVC mode: the lexically second symbol (or
1105 drop through from the above). */
1110 /* This must the second symbol with the
1111 section #. It is the actual symbol name.
1112 Intel puts the two adjacent, but Alpha (at
1113 least) spreads them out. */
1115 amt
= sizeof (struct coff_comdat_info
);
1116 coff_section_data (abfd
, section
)->comdat
1117 = (struct coff_comdat_info
*) bfd_alloc (abfd
, amt
);
1118 if (coff_section_data (abfd
, section
)->comdat
== NULL
)
1121 coff_section_data (abfd
, section
)->comdat
->symbol
=
1122 (esym
- esymstart
) / bfd_coff_symesz (abfd
);
1124 amt
= strlen (symname
) + 1;
1125 newname
= (char *) bfd_alloc (abfd
, amt
);
1126 if (newname
== NULL
)
1129 strcpy (newname
, symname
);
1130 coff_section_data (abfd
, section
)->comdat
->name
1138 esym
+= (isym
.n_numaux
+ 1) * bfd_coff_symesz (abfd
);
1146 /* The PE version; see above for the general comments.
1148 Since to set the SEC_LINK_ONCE and associated flags, we have to
1149 look at the symbol table anyway, we return the symbol table index
1150 of the symbol being used as the COMDAT symbol. This is admittedly
1151 ugly, but there's really nowhere else that we have access to the
1152 required information. FIXME: Is the COMDAT symbol index used for
1153 any purpose other than objdump? */
1156 styp_to_sec_flags (bfd
*abfd
,
1160 flagword
*flags_ptr
)
1162 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
1163 long styp_flags
= internal_s
->s_flags
;
1165 bfd_boolean result
= TRUE
;
1166 bfd_boolean is_dbg
= FALSE
;
1168 if (CONST_STRNEQ (name
, DOT_DEBUG
)
1169 || CONST_STRNEQ (name
, DOT_ZDEBUG
)
1170 #ifdef COFF_LONG_SECTION_NAMES
1171 || CONST_STRNEQ (name
, GNU_LINKONCE_WI
)
1172 || CONST_STRNEQ (name
, GNU_LINKONCE_WT
)
1174 || CONST_STRNEQ (name
, ".stab"))
1176 /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */
1177 sec_flags
= SEC_READONLY
;
1179 /* If section disallows read, then set the NOREAD flag. */
1180 if ((styp_flags
& IMAGE_SCN_MEM_READ
) == 0)
1181 sec_flags
|= SEC_COFF_NOREAD
;
1183 /* Process each flag bit in styp_flags in turn. */
1186 long flag
= styp_flags
& - styp_flags
;
1187 char * unhandled
= NULL
;
1189 styp_flags
&= ~ flag
;
1191 /* We infer from the distinct read/write/execute bits the settings
1192 of some of the bfd flags; the actual values, should we need them,
1193 are also in pei_section_data (abfd, section)->pe_flags. */
1198 unhandled
= "STYP_DSECT";
1201 unhandled
= "STYP_GROUP";
1204 unhandled
= "STYP_COPY";
1207 unhandled
= "STYP_OVER";
1209 #ifdef SEC_NEVER_LOAD
1211 sec_flags
|= SEC_NEVER_LOAD
;
1214 case IMAGE_SCN_MEM_READ
:
1215 sec_flags
&= ~SEC_COFF_NOREAD
;
1217 case IMAGE_SCN_TYPE_NO_PAD
:
1220 case IMAGE_SCN_LNK_OTHER
:
1221 unhandled
= "IMAGE_SCN_LNK_OTHER";
1223 case IMAGE_SCN_MEM_NOT_CACHED
:
1224 unhandled
= "IMAGE_SCN_MEM_NOT_CACHED";
1226 case IMAGE_SCN_MEM_NOT_PAGED
:
1227 /* Generate a warning message rather using the 'unhandled'
1228 variable as this will allow some .sys files generate by
1229 other toolchains to be processed. See bugzilla issue 196. */
1230 _bfd_error_handler (_("%B: Warning: Ignoring section flag IMAGE_SCN_MEM_NOT_PAGED in section %s"),
1233 case IMAGE_SCN_MEM_EXECUTE
:
1234 sec_flags
|= SEC_CODE
;
1236 case IMAGE_SCN_MEM_WRITE
:
1237 sec_flags
&= ~ SEC_READONLY
;
1239 case IMAGE_SCN_MEM_DISCARDABLE
:
1240 /* The MS PE spec says that debug sections are DISCARDABLE,
1241 but the presence of a DISCARDABLE flag does not necessarily
1242 mean that a given section contains debug information. Thus
1243 we only set the SEC_DEBUGGING flag on sections that we
1244 recognise as containing debug information. */
1247 || strcmp (name
, _COMMENT
) == 0
1251 sec_flags
|= SEC_DEBUGGING
| SEC_READONLY
;
1254 case IMAGE_SCN_MEM_SHARED
:
1255 sec_flags
|= SEC_COFF_SHARED
;
1257 case IMAGE_SCN_LNK_REMOVE
:
1259 sec_flags
|= SEC_EXCLUDE
;
1261 case IMAGE_SCN_CNT_CODE
:
1262 sec_flags
|= SEC_CODE
| SEC_ALLOC
| SEC_LOAD
;
1264 case IMAGE_SCN_CNT_INITIALIZED_DATA
:
1266 sec_flags
|= SEC_DEBUGGING
;
1268 sec_flags
|= SEC_DATA
| SEC_ALLOC
| SEC_LOAD
;
1270 case IMAGE_SCN_CNT_UNINITIALIZED_DATA
:
1271 sec_flags
|= SEC_ALLOC
;
1273 case IMAGE_SCN_LNK_INFO
:
1274 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
1275 defined. coff_compute_section_file_positions uses
1276 COFF_PAGE_SIZE to ensure that the low order bits of the
1277 section VMA and the file offset match. If we don't know
1278 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
1279 and demand page loading of the file will fail. */
1280 #ifdef COFF_PAGE_SIZE
1281 sec_flags
|= SEC_DEBUGGING
;
1284 case IMAGE_SCN_LNK_COMDAT
:
1285 /* COMDAT gets very special treatment. */
1286 sec_flags
= handle_COMDAT (abfd
, sec_flags
, hdr
, name
, section
);
1289 /* Silently ignore for now. */
1293 /* If the section flag was not handled, report it here. */
1294 if (unhandled
!= NULL
)
1296 (*_bfd_error_handler
)
1297 (_("%B (%s): Section flag %s (0x%x) ignored"),
1298 abfd
, name
, unhandled
, flag
);
1303 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
1304 /* As a GNU extension, if the name begins with .gnu.linkonce, we
1305 only link a single copy of the section. This is used to support
1306 g++. g++ will emit each template expansion in its own section.
1307 The symbols will be defined as weak, so that multiple definitions
1308 are permitted. The GNU linker extension is to actually discard
1309 all but one of the sections. */
1310 if (CONST_STRNEQ (name
, ".gnu.linkonce"))
1311 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
1315 * flags_ptr
= sec_flags
;
1320 #endif /* COFF_WITH_PE */
1322 #define get_index(symbol) ((symbol)->udata.i)
1326 bfd_coff_backend_data
1330 .{* COFF symbol classifications. *}
1332 .enum coff_symbol_classification
1334 . {* Global symbol. *}
1335 . COFF_SYMBOL_GLOBAL,
1336 . {* Common symbol. *}
1337 . COFF_SYMBOL_COMMON,
1338 . {* Undefined symbol. *}
1339 . COFF_SYMBOL_UNDEFINED,
1340 . {* Local symbol. *}
1341 . COFF_SYMBOL_LOCAL,
1342 . {* PE section symbol. *}
1343 . COFF_SYMBOL_PE_SECTION
1346 Special entry points for gdb to swap in coff symbol table parts:
1349 . void (*_bfd_coff_swap_aux_in)
1350 . (bfd *, void *, int, int, int, int, void *);
1352 . void (*_bfd_coff_swap_sym_in)
1353 . (bfd *, void *, void *);
1355 . void (*_bfd_coff_swap_lineno_in)
1356 . (bfd *, void *, void *);
1358 . unsigned int (*_bfd_coff_swap_aux_out)
1359 . (bfd *, void *, int, int, int, int, void *);
1361 . unsigned int (*_bfd_coff_swap_sym_out)
1362 . (bfd *, void *, void *);
1364 . unsigned int (*_bfd_coff_swap_lineno_out)
1365 . (bfd *, void *, void *);
1367 . unsigned int (*_bfd_coff_swap_reloc_out)
1368 . (bfd *, void *, void *);
1370 . unsigned int (*_bfd_coff_swap_filehdr_out)
1371 . (bfd *, void *, void *);
1373 . unsigned int (*_bfd_coff_swap_aouthdr_out)
1374 . (bfd *, void *, void *);
1376 . unsigned int (*_bfd_coff_swap_scnhdr_out)
1377 . (bfd *, void *, void *);
1379 . unsigned int _bfd_filhsz;
1380 . unsigned int _bfd_aoutsz;
1381 . unsigned int _bfd_scnhsz;
1382 . unsigned int _bfd_symesz;
1383 . unsigned int _bfd_auxesz;
1384 . unsigned int _bfd_relsz;
1385 . unsigned int _bfd_linesz;
1386 . unsigned int _bfd_filnmlen;
1387 . bfd_boolean _bfd_coff_long_filenames;
1389 . bfd_boolean _bfd_coff_long_section_names;
1390 . bfd_boolean (*_bfd_coff_set_long_section_names)
1393 . unsigned int _bfd_coff_default_section_alignment_power;
1394 . bfd_boolean _bfd_coff_force_symnames_in_strings;
1395 . unsigned int _bfd_coff_debug_string_prefix_length;
1396 . unsigned int _bfd_coff_max_nscns;
1398 . void (*_bfd_coff_swap_filehdr_in)
1399 . (bfd *, void *, void *);
1401 . void (*_bfd_coff_swap_aouthdr_in)
1402 . (bfd *, void *, void *);
1404 . void (*_bfd_coff_swap_scnhdr_in)
1405 . (bfd *, void *, void *);
1407 . void (*_bfd_coff_swap_reloc_in)
1408 . (bfd *abfd, void *, void *);
1410 . bfd_boolean (*_bfd_coff_bad_format_hook)
1413 . bfd_boolean (*_bfd_coff_set_arch_mach_hook)
1416 . void * (*_bfd_coff_mkobject_hook)
1417 . (bfd *, void *, void *);
1419 . bfd_boolean (*_bfd_styp_to_sec_flags_hook)
1420 . (bfd *, void *, const char *, asection *, flagword *);
1422 . void (*_bfd_set_alignment_hook)
1423 . (bfd *, asection *, void *);
1425 . bfd_boolean (*_bfd_coff_slurp_symbol_table)
1428 . bfd_boolean (*_bfd_coff_symname_in_debug)
1429 . (bfd *, struct internal_syment *);
1431 . bfd_boolean (*_bfd_coff_pointerize_aux_hook)
1432 . (bfd *, combined_entry_type *, combined_entry_type *,
1433 . unsigned int, combined_entry_type *);
1435 . bfd_boolean (*_bfd_coff_print_aux)
1436 . (bfd *, FILE *, combined_entry_type *, combined_entry_type *,
1437 . combined_entry_type *, unsigned int);
1439 . void (*_bfd_coff_reloc16_extra_cases)
1440 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
1441 . bfd_byte *, unsigned int *, unsigned int *);
1443 . int (*_bfd_coff_reloc16_estimate)
1444 . (bfd *, asection *, arelent *, unsigned int,
1445 . struct bfd_link_info *);
1447 . enum coff_symbol_classification (*_bfd_coff_classify_symbol)
1448 . (bfd *, struct internal_syment *);
1450 . bfd_boolean (*_bfd_coff_compute_section_file_positions)
1453 . bfd_boolean (*_bfd_coff_start_final_link)
1454 . (bfd *, struct bfd_link_info *);
1456 . bfd_boolean (*_bfd_coff_relocate_section)
1457 . (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
1458 . struct internal_reloc *, struct internal_syment *, asection **);
1460 . reloc_howto_type *(*_bfd_coff_rtype_to_howto)
1461 . (bfd *, asection *, struct internal_reloc *,
1462 . struct coff_link_hash_entry *, struct internal_syment *,
1465 . bfd_boolean (*_bfd_coff_adjust_symndx)
1466 . (bfd *, struct bfd_link_info *, bfd *, asection *,
1467 . struct internal_reloc *, bfd_boolean *);
1469 . bfd_boolean (*_bfd_coff_link_add_one_symbol)
1470 . (struct bfd_link_info *, bfd *, const char *, flagword,
1471 . asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
1472 . struct bfd_link_hash_entry **);
1474 . bfd_boolean (*_bfd_coff_link_output_has_begun)
1475 . (bfd *, struct coff_final_link_info *);
1477 . bfd_boolean (*_bfd_coff_final_link_postscript)
1478 . (bfd *, struct coff_final_link_info *);
1480 . bfd_boolean (*_bfd_coff_print_pdata)
1483 .} bfd_coff_backend_data;
1485 .#define coff_backend_info(abfd) \
1486 . ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
1488 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
1489 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
1491 .#define bfd_coff_swap_sym_in(a,e,i) \
1492 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
1494 .#define bfd_coff_swap_lineno_in(a,e,i) \
1495 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
1497 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
1498 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
1500 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
1501 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
1503 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
1504 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
1506 .#define bfd_coff_swap_sym_out(abfd, i,o) \
1507 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
1509 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
1510 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
1512 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
1513 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
1515 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
1516 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
1518 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1519 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1520 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1521 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1522 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1523 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1524 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
1525 .#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
1526 .#define bfd_coff_long_filenames(abfd) \
1527 . (coff_backend_info (abfd)->_bfd_coff_long_filenames)
1528 .#define bfd_coff_long_section_names(abfd) \
1529 . (coff_backend_info (abfd)->_bfd_coff_long_section_names)
1530 .#define bfd_coff_set_long_section_names(abfd, enable) \
1531 . ((coff_backend_info (abfd)->_bfd_coff_set_long_section_names) (abfd, enable))
1532 .#define bfd_coff_default_section_alignment_power(abfd) \
1533 . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
1534 .#define bfd_coff_max_nscns(abfd) \
1535 . (coff_backend_info (abfd)->_bfd_coff_max_nscns)
1537 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
1538 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
1540 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
1541 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
1543 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
1544 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
1546 .#define bfd_coff_swap_reloc_in(abfd, i, o) \
1547 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
1549 .#define bfd_coff_bad_format_hook(abfd, filehdr) \
1550 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
1552 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
1553 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
1554 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
1555 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\
1556 . (abfd, filehdr, aouthdr))
1558 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
1559 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1560 . (abfd, scnhdr, name, section, flags_ptr))
1562 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
1563 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
1565 .#define bfd_coff_slurp_symbol_table(abfd)\
1566 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
1568 .#define bfd_coff_symname_in_debug(abfd, sym)\
1569 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
1571 .#define bfd_coff_force_symnames_in_strings(abfd)\
1572 . (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
1574 .#define bfd_coff_debug_string_prefix_length(abfd)\
1575 . (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
1577 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
1578 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1579 . (abfd, file, base, symbol, aux, indaux))
1581 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\
1582 . reloc, data, src_ptr, dst_ptr)\
1583 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1584 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
1586 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
1587 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1588 . (abfd, section, reloc, shrink, link_info))
1590 .#define bfd_coff_classify_symbol(abfd, sym)\
1591 . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1594 .#define bfd_coff_compute_section_file_positions(abfd)\
1595 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1598 .#define bfd_coff_start_final_link(obfd, info)\
1599 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1601 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
1602 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1603 . (obfd, info, ibfd, o, con, rel, isyms, secs))
1604 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
1605 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1606 . (abfd, sec, rel, h, sym, addendp))
1607 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
1608 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1609 . (obfd, info, ibfd, sec, rel, adjustedp))
1610 .#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\
1611 . value, string, cp, coll, hashp)\
1612 . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1613 . (info, abfd, name, flags, section, value, string, cp, coll, hashp))
1615 .#define bfd_coff_link_output_has_begun(a,p) \
1616 . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a, p))
1617 .#define bfd_coff_final_link_postscript(a,p) \
1618 . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a, p))
1620 .#define bfd_coff_have_print_pdata(a) \
1621 . (coff_backend_info (a)->_bfd_coff_print_pdata)
1622 .#define bfd_coff_print_pdata(a,p) \
1623 . ((coff_backend_info (a)->_bfd_coff_print_pdata) (a, p))
1625 .{* Macro: Returns true if the bfd is a PE executable as opposed to a
1626 . PE object file. *}
1627 .#define bfd_pei_p(abfd) \
1628 . (CONST_STRNEQ ((abfd)->xvec->name, "pei-"))
1631 /* See whether the magic number matches. */
1634 coff_bad_format_hook (bfd
* abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1636 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1638 if (BADMAG (*internal_f
))
1641 /* If the optional header is NULL or not the correct size then
1642 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1643 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1644 optional header is of a different size.
1646 But the mips keeps extra stuff in it's opthdr, so dont check
1649 #if defined(M88) || defined(I960)
1650 if (internal_f
->f_opthdr
!= 0 && bfd_coff_aoutsz (abfd
) != internal_f
->f_opthdr
)
1659 ticoff0_bad_format_hook (bfd
*abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1661 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1663 if (COFF0_BADMAG (*internal_f
))
1672 ticoff1_bad_format_hook (bfd
*abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1674 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1676 if (COFF1_BADMAG (*internal_f
))
1683 /* Check whether this section uses an alignment other than the
1687 coff_set_custom_section_alignment (bfd
*abfd ATTRIBUTE_UNUSED
,
1689 const struct coff_section_alignment_entry
*alignment_table
,
1690 const unsigned int table_size
)
1692 const unsigned int default_alignment
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1695 for (i
= 0; i
< table_size
; ++i
)
1697 const char *secname
= bfd_get_section_name (abfd
, section
);
1699 if (alignment_table
[i
].comparison_length
== (unsigned int) -1
1700 ? strcmp (alignment_table
[i
].name
, secname
) == 0
1701 : strncmp (alignment_table
[i
].name
, secname
,
1702 alignment_table
[i
].comparison_length
) == 0)
1705 if (i
>= table_size
)
1708 if (alignment_table
[i
].default_alignment_min
!= COFF_ALIGNMENT_FIELD_EMPTY
1709 && default_alignment
< alignment_table
[i
].default_alignment_min
)
1712 if (alignment_table
[i
].default_alignment_max
!= COFF_ALIGNMENT_FIELD_EMPTY
1713 #if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0
1714 && default_alignment
> alignment_table
[i
].default_alignment_max
1719 section
->alignment_power
= alignment_table
[i
].alignment_power
;
1722 /* Custom section alignment records. */
1724 static const struct coff_section_alignment_entry
1725 coff_section_alignment_table
[] =
1727 #ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1728 COFF_SECTION_ALIGNMENT_ENTRIES
,
1730 /* There must not be any gaps between .stabstr sections. */
1731 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1732 1, COFF_ALIGNMENT_FIELD_EMPTY
, 0 },
1733 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1734 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1735 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1736 /* Similarly for the .ctors and .dtors sections. */
1737 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1738 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1739 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1740 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 }
1743 static const unsigned int coff_section_alignment_table_size
=
1744 sizeof coff_section_alignment_table
/ sizeof coff_section_alignment_table
[0];
1746 /* Initialize a section structure with information peculiar to this
1747 particular implementation of COFF. */
1750 coff_new_section_hook (bfd
* abfd
, asection
* section
)
1752 combined_entry_type
*native
;
1754 unsigned char sclass
= C_STAT
;
1756 section
->alignment_power
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1759 if (bfd_xcoff_text_align_power (abfd
) != 0
1760 && strcmp (bfd_get_section_name (abfd
, section
), ".text") == 0)
1761 section
->alignment_power
= bfd_xcoff_text_align_power (abfd
);
1762 else if (bfd_xcoff_data_align_power (abfd
) != 0
1763 && strcmp (bfd_get_section_name (abfd
, section
), ".data") == 0)
1764 section
->alignment_power
= bfd_xcoff_data_align_power (abfd
);
1769 for (i
= 0; i
< XCOFF_DWSECT_NBR_NAMES
; i
++)
1770 if (strcmp (bfd_get_section_name (abfd
, section
),
1771 xcoff_dwsect_names
[i
].name
) == 0)
1773 section
->alignment_power
= 0;
1780 /* Set up the section symbol. */
1781 if (!_bfd_generic_new_section_hook (abfd
, section
))
1784 /* Allocate aux records for section symbols, to store size and
1787 @@ The 10 is a guess at a plausible maximum number of aux entries
1788 (but shouldn't be a constant). */
1789 amt
= sizeof (combined_entry_type
) * 10;
1790 native
= (combined_entry_type
*) bfd_zalloc (abfd
, amt
);
1794 /* We don't need to set up n_name, n_value, or n_scnum in the native
1795 symbol information, since they'll be overridden by the BFD symbol
1796 anyhow. However, we do need to set the type and storage class,
1797 in case this symbol winds up getting written out. The value 0
1798 for n_numaux is already correct. */
1800 native
->u
.syment
.n_type
= T_NULL
;
1801 native
->u
.syment
.n_sclass
= sclass
;
1803 coffsymbol (section
->symbol
)->native
= native
;
1805 coff_set_custom_section_alignment (abfd
, section
,
1806 coff_section_alignment_table
,
1807 coff_section_alignment_table_size
);
1812 #ifdef COFF_ALIGN_IN_SECTION_HEADER
1814 /* Set the alignment of a BFD section. */
1817 coff_set_alignment_hook (bfd
* abfd ATTRIBUTE_UNUSED
,
1821 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1825 /* Extract ALIGN from 2**ALIGN stored in section header. */
1826 for (i
= 0; i
< 32; i
++)
1827 if ((1 << i
) >= hdr
->s_align
)
1831 /* TI tools puts the alignment power in bits 8-11. */
1832 i
= (hdr
->s_flags
>> 8) & 0xF ;
1834 #ifdef COFF_DECODE_ALIGNMENT
1835 i
= COFF_DECODE_ALIGNMENT(hdr
->s_flags
);
1837 section
->alignment_power
= i
;
1839 #ifdef coff_set_section_load_page
1840 coff_set_section_load_page (section
, hdr
->s_page
);
1844 #else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1848 coff_set_alignment_hook (bfd
* abfd ATTRIBUTE_UNUSED
,
1852 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1854 unsigned int alignment_power_const
1855 = hdr
->s_flags
& IMAGE_SCN_ALIGN_POWER_BIT_MASK
;
1857 switch (alignment_power_const
)
1859 case IMAGE_SCN_ALIGN_8192BYTES
:
1860 case IMAGE_SCN_ALIGN_4096BYTES
:
1861 case IMAGE_SCN_ALIGN_2048BYTES
:
1862 case IMAGE_SCN_ALIGN_1024BYTES
:
1863 case IMAGE_SCN_ALIGN_512BYTES
:
1864 case IMAGE_SCN_ALIGN_256BYTES
:
1865 case IMAGE_SCN_ALIGN_128BYTES
:
1866 case IMAGE_SCN_ALIGN_64BYTES
:
1867 case IMAGE_SCN_ALIGN_32BYTES
:
1868 case IMAGE_SCN_ALIGN_16BYTES
:
1869 case IMAGE_SCN_ALIGN_8BYTES
:
1870 case IMAGE_SCN_ALIGN_4BYTES
:
1871 case IMAGE_SCN_ALIGN_2BYTES
:
1872 case IMAGE_SCN_ALIGN_1BYTES
:
1873 section
->alignment_power
1874 = IMAGE_SCN_ALIGN_POWER_NUM (alignment_power_const
);
1880 /* In a PE image file, the s_paddr field holds the virtual size of a
1881 section, while the s_size field holds the raw size. We also keep
1882 the original section flag value, since not every bit can be
1883 mapped onto a generic BFD section bit. */
1884 if (coff_section_data (abfd
, section
) == NULL
)
1886 amt
= sizeof (struct coff_section_tdata
);
1887 section
->used_by_bfd
= bfd_zalloc (abfd
, amt
);
1888 if (section
->used_by_bfd
== NULL
)
1889 /* FIXME: Return error. */
1893 if (pei_section_data (abfd
, section
) == NULL
)
1895 amt
= sizeof (struct pei_section_tdata
);
1896 coff_section_data (abfd
, section
)->tdata
= bfd_zalloc (abfd
, amt
);
1897 if (coff_section_data (abfd
, section
)->tdata
== NULL
)
1898 /* FIXME: Return error. */
1901 pei_section_data (abfd
, section
)->virt_size
= hdr
->s_paddr
;
1902 pei_section_data (abfd
, section
)->pe_flags
= hdr
->s_flags
;
1904 section
->lma
= hdr
->s_vaddr
;
1906 /* Check for extended relocs. */
1907 if (hdr
->s_flags
& IMAGE_SCN_LNK_NRELOC_OVFL
)
1909 struct external_reloc dst
;
1910 struct internal_reloc n
;
1911 file_ptr oldpos
= bfd_tell (abfd
);
1912 bfd_size_type relsz
= bfd_coff_relsz (abfd
);
1914 if (bfd_seek (abfd
, (file_ptr
) hdr
->s_relptr
, 0) != 0)
1916 if (bfd_bread (& dst
, relsz
, abfd
) != relsz
)
1919 coff_swap_reloc_in (abfd
, &dst
, &n
);
1920 if (bfd_seek (abfd
, oldpos
, 0) != 0)
1922 section
->reloc_count
= hdr
->s_nreloc
= n
.r_vaddr
- 1;
1923 /* PR binutils/17512: Stop corrupt files from causing
1924 memory problems if they claim to have too many relocs. */
1925 if (section
->reloc_count
* relsz
> (bfd_size_type
) bfd_get_size (abfd
))
1927 (*_bfd_error_handler
)
1928 ("%s: warning: claims to have %#x relocs, but the file is not that big",
1929 bfd_get_filename (abfd
), section
->reloc_count
);
1930 section
->reloc_count
= 0;
1932 section
->rel_filepos
+= relsz
;
1934 else if (hdr
->s_nreloc
== 0xffff)
1935 (*_bfd_error_handler
)
1936 ("%s: warning: claims to have 0xffff relocs, without overflow",
1937 bfd_get_filename (abfd
));
1940 #undef ELIFALIGN_SET
1942 #else /* ! COFF_WITH_PE */
1945 /* We grossly abuse this function to handle XCOFF overflow headers.
1946 When we see one, we correct the reloc and line number counts in the
1947 real header, and remove the section we just created. */
1950 coff_set_alignment_hook (bfd
*abfd
, asection
*section
, void * scnhdr
)
1952 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1955 if ((hdr
->s_flags
& STYP_OVRFLO
) == 0)
1958 real_sec
= coff_section_from_bfd_index (abfd
, (int) hdr
->s_nreloc
);
1959 if (real_sec
== NULL
)
1962 real_sec
->reloc_count
= hdr
->s_paddr
;
1963 real_sec
->lineno_count
= hdr
->s_vaddr
;
1965 if (!bfd_section_removed_from_list (abfd
, section
))
1967 bfd_section_list_remove (abfd
, section
);
1968 --abfd
->section_count
;
1972 #else /* ! RS6000COFF_C */
1974 #define coff_set_alignment_hook \
1975 ((void (*) (bfd *, asection *, void *)) bfd_void)
1977 #endif /* ! RS6000COFF_C */
1978 #endif /* ! COFF_WITH_PE */
1979 #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
1981 #ifndef coff_mkobject
1984 coff_mkobject (bfd
* abfd
)
1986 coff_data_type
*coff
;
1987 bfd_size_type amt
= sizeof (coff_data_type
);
1989 abfd
->tdata
.coff_obj_data
= bfd_zalloc (abfd
, amt
);
1990 if (abfd
->tdata
.coff_obj_data
== NULL
)
1992 coff
= coff_data (abfd
);
1993 coff
->symbols
= NULL
;
1994 coff
->conversion_table
= NULL
;
1995 coff
->raw_syments
= NULL
;
1996 coff
->relocbase
= 0;
1997 coff
->local_toc_sym_map
= 0;
1999 /* make_abs_section(abfd);*/
2005 /* Create the COFF backend specific information. */
2007 #ifndef coff_mkobject_hook
2009 coff_mkobject_hook (bfd
* abfd
,
2011 void * aouthdr ATTRIBUTE_UNUSED
)
2013 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
2014 coff_data_type
*coff
;
2016 if (! coff_mkobject (abfd
))
2019 coff
= coff_data (abfd
);
2021 coff
->sym_filepos
= internal_f
->f_symptr
;
2023 /* These members communicate important constants about the symbol
2024 table to GDB's symbol-reading code. These `constants'
2025 unfortunately vary among coff implementations... */
2026 coff
->local_n_btmask
= N_BTMASK
;
2027 coff
->local_n_btshft
= N_BTSHFT
;
2028 coff
->local_n_tmask
= N_TMASK
;
2029 coff
->local_n_tshift
= N_TSHIFT
;
2030 coff
->local_symesz
= bfd_coff_symesz (abfd
);
2031 coff
->local_auxesz
= bfd_coff_auxesz (abfd
);
2032 coff
->local_linesz
= bfd_coff_linesz (abfd
);
2034 coff
->timestamp
= internal_f
->f_timdat
;
2036 obj_raw_syment_count (abfd
) =
2037 obj_conv_table_size (abfd
) =
2038 internal_f
->f_nsyms
;
2041 if ((internal_f
->f_flags
& F_SHROBJ
) != 0)
2042 abfd
->flags
|= DYNAMIC
;
2043 if (aouthdr
!= NULL
&& internal_f
->f_opthdr
>= bfd_coff_aoutsz (abfd
))
2045 struct internal_aouthdr
*internal_a
=
2046 (struct internal_aouthdr
*) aouthdr
;
2047 struct xcoff_tdata
*xcoff
;
2049 xcoff
= xcoff_data (abfd
);
2050 # ifdef U803XTOCMAGIC
2051 xcoff
->xcoff64
= internal_f
->f_magic
== U803XTOCMAGIC
;
2055 xcoff
->full_aouthdr
= TRUE
;
2056 xcoff
->toc
= internal_a
->o_toc
;
2057 xcoff
->sntoc
= internal_a
->o_sntoc
;
2058 xcoff
->snentry
= internal_a
->o_snentry
;
2059 bfd_xcoff_text_align_power (abfd
) = internal_a
->o_algntext
;
2060 bfd_xcoff_data_align_power (abfd
) = internal_a
->o_algndata
;
2061 xcoff
->modtype
= internal_a
->o_modtype
;
2062 xcoff
->cputype
= internal_a
->o_cputype
;
2063 xcoff
->maxdata
= internal_a
->o_maxdata
;
2064 xcoff
->maxstack
= internal_a
->o_maxstack
;
2069 /* Set the flags field from the COFF header read in. */
2070 if (! _bfd_coff_arm_set_private_flags (abfd
, internal_f
->f_flags
))
2075 /* FIXME: I'm not sure this is ever executed, since peicode.h
2076 defines coff_mkobject_hook. */
2077 if ((internal_f
->f_flags
& IMAGE_FILE_DEBUG_STRIPPED
) == 0)
2078 abfd
->flags
|= HAS_DEBUG
;
2081 if ((internal_f
->f_flags
& F_GO32STUB
) != 0)
2082 coff
->go32stub
= (char *) bfd_alloc (abfd
, (bfd_size_type
) GO32_STUBSIZE
);
2083 if (coff
->go32stub
!= NULL
)
2084 memcpy (coff
->go32stub
, internal_f
->go32stub
, GO32_STUBSIZE
);
2090 /* Determine the machine architecture and type. FIXME: This is target
2091 dependent because the magic numbers are defined in the target
2092 dependent header files. But there is no particular need for this.
2093 If the magic numbers were moved to a separate file, this function
2094 would be target independent and would also be much more successful
2095 at linking together COFF files for different architectures. */
2098 coff_set_arch_mach_hook (bfd
*abfd
, void * filehdr
)
2100 unsigned long machine
;
2101 enum bfd_architecture arch
;
2102 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
2104 /* Zero selects the default machine for an arch. */
2106 switch (internal_f
->f_magic
)
2110 arch
= bfd_arch_powerpc
;
2116 case I386AIXMAGIC
: /* Danbury PS/2 AIX C Compiler. */
2117 case LYNXCOFFMAGIC
: /* Shadows the m68k Lynx number below, sigh. */
2118 arch
= bfd_arch_i386
;
2123 arch
= bfd_arch_i386
;
2124 machine
= bfd_mach_x86_64
;
2129 arch
= bfd_arch_ia64
;
2136 arch
= bfd_arch_arm
;
2137 machine
= bfd_arm_get_mach_from_notes (abfd
, ARM_NOTE_SECTION
);
2138 if (machine
== bfd_mach_arm_unknown
)
2140 switch (internal_f
->f_flags
& F_ARM_ARCHITECTURE_MASK
)
2142 case F_ARM_2
: machine
= bfd_mach_arm_2
; break;
2143 case F_ARM_2a
: machine
= bfd_mach_arm_2a
; break;
2144 case F_ARM_3
: machine
= bfd_mach_arm_3
; break;
2146 case F_ARM_3M
: machine
= bfd_mach_arm_3M
; break;
2147 case F_ARM_4
: machine
= bfd_mach_arm_4
; break;
2148 case F_ARM_4T
: machine
= bfd_mach_arm_4T
; break;
2149 /* The COFF header does not have enough bits available
2150 to cover all the different ARM architectures. So
2151 we interpret F_ARM_5, the highest flag value to mean
2152 "the highest ARM architecture known to BFD" which is
2153 currently the XScale. */
2154 case F_ARM_5
: machine
= bfd_mach_arm_XScale
; break;
2162 #ifdef MC68KBCSMAGIC
2165 #ifdef APOLLOM68KMAGIC
2166 case APOLLOM68KMAGIC
:
2168 #ifdef LYNXCOFFMAGIC
2171 arch
= bfd_arch_m68k
;
2172 machine
= bfd_mach_m68020
;
2179 arch
= bfd_arch_m88k
;
2185 arch
= bfd_arch_z80
;
2186 switch (internal_f
->f_flags
& F_MACHMASK
)
2189 case bfd_mach_z80strict
<< 12:
2190 case bfd_mach_z80
<< 12:
2191 case bfd_mach_z80full
<< 12:
2192 case bfd_mach_r800
<< 12:
2193 machine
= ((unsigned)internal_f
->f_flags
& F_MACHMASK
) >> 12;
2202 arch
= bfd_arch_z8k
;
2203 switch (internal_f
->f_flags
& F_MACHMASK
)
2206 machine
= bfd_mach_z8001
;
2209 machine
= bfd_mach_z8002
;
2218 arch
= bfd_arch_i860
;
2225 arch
= bfd_arch_i960
;
2226 switch (F_I960TYPE
& internal_f
->f_flags
)
2230 machine
= bfd_mach_i960_core
;
2233 machine
= bfd_mach_i960_kb_sb
;
2236 machine
= bfd_mach_i960_mc
;
2239 machine
= bfd_mach_i960_xa
;
2242 machine
= bfd_mach_i960_ca
;
2245 machine
= bfd_mach_i960_ka_sa
;
2248 machine
= bfd_mach_i960_jx
;
2251 machine
= bfd_mach_i960_hx
;
2270 if (xcoff_data (abfd
)->cputype
!= -1)
2271 cputype
= xcoff_data (abfd
)->cputype
& 0xff;
2274 /* We did not get a value from the a.out header. If the
2275 file has not been stripped, we may be able to get the
2276 architecture information from the first symbol, if it
2277 is a .file symbol. */
2278 if (obj_raw_syment_count (abfd
) == 0)
2283 struct internal_syment sym
;
2284 bfd_size_type amt
= bfd_coff_symesz (abfd
);
2286 buf
= bfd_malloc (amt
);
2287 if (bfd_seek (abfd
, obj_sym_filepos (abfd
), SEEK_SET
) != 0
2288 || bfd_bread (buf
, amt
, abfd
) != amt
)
2293 bfd_coff_swap_sym_in (abfd
, buf
, & sym
);
2294 if (sym
.n_sclass
== C_FILE
)
2295 cputype
= sym
.n_type
& 0xff;
2302 /* FIXME: We don't handle all cases here. */
2307 arch
= bfd_xcoff_architecture (abfd
);
2308 machine
= bfd_xcoff_machine (abfd
);
2312 arch
= bfd_arch_powerpc
;
2313 machine
= bfd_mach_ppc_601
;
2315 case 2: /* 64 bit PowerPC */
2316 arch
= bfd_arch_powerpc
;
2317 machine
= bfd_mach_ppc_620
;
2320 arch
= bfd_arch_powerpc
;
2321 machine
= bfd_mach_ppc
;
2324 arch
= bfd_arch_rs6000
;
2325 machine
= bfd_mach_rs6k
;
2334 arch
= bfd_arch_we32k
;
2340 arch
= bfd_arch_h8300
;
2341 machine
= bfd_mach_h8300
;
2342 /* !! FIXME this probably isn't the right place for this. */
2343 abfd
->flags
|= BFD_IS_RELAXABLE
;
2349 arch
= bfd_arch_h8300
;
2350 machine
= bfd_mach_h8300h
;
2351 /* !! FIXME this probably isn't the right place for this. */
2352 abfd
->flags
|= BFD_IS_RELAXABLE
;
2358 arch
= bfd_arch_h8300
;
2359 machine
= bfd_mach_h8300s
;
2360 /* !! FIXME this probably isn't the right place for this. */
2361 abfd
->flags
|= BFD_IS_RELAXABLE
;
2367 arch
= bfd_arch_h8300
;
2368 machine
= bfd_mach_h8300hn
;
2369 /* !! FIXME this probably isn't the right place for this. */
2370 abfd
->flags
|= BFD_IS_RELAXABLE
;
2376 arch
= bfd_arch_h8300
;
2377 machine
= bfd_mach_h8300sn
;
2378 /* !! FIXME this probably isn't the right place for this. */
2379 abfd
->flags
|= BFD_IS_RELAXABLE
;
2383 #ifdef SH_ARCH_MAGIC_BIG
2384 case SH_ARCH_MAGIC_BIG
:
2385 case SH_ARCH_MAGIC_LITTLE
:
2387 case SH_ARCH_MAGIC_WINCE
:
2393 #ifdef MIPS_ARCH_MAGIC_WINCE
2394 case MIPS_ARCH_MAGIC_WINCE
:
2395 arch
= bfd_arch_mips
;
2401 arch
= bfd_arch_h8500
;
2407 #ifdef LYNXCOFFMAGIC
2410 arch
= bfd_arch_sparc
;
2416 arch
= bfd_arch_tic30
;
2421 #ifdef TICOFF_TARGET_ARCH
2422 /* This TI COFF section should be used by all new TI COFF v0 targets. */
2424 arch
= TICOFF_TARGET_ARCH
;
2425 machine
= TICOFF_TARGET_MACHINE_GET (internal_f
->f_flags
);
2431 /* This TI COFF section should be used by all new TI COFF v1/2 targets. */
2432 /* TI COFF1 and COFF2 use the target_id field to specify which arch. */
2435 switch (internal_f
->f_target_id
)
2439 arch
= TICOFF_TARGET_ARCH
;
2440 machine
= TICOFF_TARGET_MACHINE_GET (internal_f
->f_flags
);
2444 arch
= bfd_arch_obscure
;
2445 (*_bfd_error_handler
)
2446 (_("Unrecognized TI COFF target id '0x%x'"),
2447 internal_f
->f_target_id
);
2453 #ifdef TIC80_ARCH_MAGIC
2454 case TIC80_ARCH_MAGIC
:
2455 arch
= bfd_arch_tic80
;
2461 arch
= bfd_arch_mcore
;
2467 arch
= bfd_arch_w65
;
2471 default: /* Unreadable input file type. */
2472 arch
= bfd_arch_obscure
;
2476 bfd_default_set_arch_mach (abfd
, arch
, machine
);
2480 #ifdef SYMNAME_IN_DEBUG
2483 symname_in_debug_hook (bfd
* abfd ATTRIBUTE_UNUSED
, struct internal_syment
*sym
)
2485 return SYMNAME_IN_DEBUG (sym
) != 0;
2490 #define symname_in_debug_hook \
2491 (bfd_boolean (*) (bfd *, struct internal_syment *)) bfd_false
2498 #define FORCE_SYMNAMES_IN_STRINGS
2501 /* Handle the csect auxent of a C_EXT, C_AIX_WEAKEXT or C_HIDEXT symbol. */
2504 coff_pointerize_aux_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2505 combined_entry_type
*table_base
,
2506 combined_entry_type
*symbol
,
2507 unsigned int indaux
,
2508 combined_entry_type
*aux
)
2510 int n_sclass
= symbol
->u
.syment
.n_sclass
;
2512 if (CSECT_SYM_P (n_sclass
)
2513 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2515 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) == XTY_LD
)
2517 aux
->u
.auxent
.x_csect
.x_scnlen
.p
=
2518 table_base
+ aux
->u
.auxent
.x_csect
.x_scnlen
.l
;
2519 aux
->fix_scnlen
= 1;
2522 /* Return TRUE to indicate that the caller should not do any
2523 further work on this auxent. */
2527 /* Return FALSE to indicate that this auxent should be handled by
2535 /* We don't want to pointerize bal entries. */
2538 coff_pointerize_aux_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2539 combined_entry_type
*table_base ATTRIBUTE_UNUSED
,
2540 combined_entry_type
*symbol
,
2541 unsigned int indaux
,
2542 combined_entry_type
*aux ATTRIBUTE_UNUSED
)
2544 /* Return TRUE if we don't want to pointerize this aux entry, which
2545 is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */
2547 && (symbol
->u
.syment
.n_sclass
== C_LEAFPROC
2548 || symbol
->u
.syment
.n_sclass
== C_LEAFSTAT
2549 || symbol
->u
.syment
.n_sclass
== C_LEAFEXT
));
2554 #define coff_pointerize_aux_hook 0
2557 #endif /* ! RS6000COFF_C */
2559 /* Print an aux entry. This returns TRUE if it has printed it. */
2562 coff_print_aux (bfd
*abfd ATTRIBUTE_UNUSED
,
2563 FILE *file ATTRIBUTE_UNUSED
,
2564 combined_entry_type
*table_base ATTRIBUTE_UNUSED
,
2565 combined_entry_type
*symbol ATTRIBUTE_UNUSED
,
2566 combined_entry_type
*aux ATTRIBUTE_UNUSED
,
2567 unsigned int indaux ATTRIBUTE_UNUSED
)
2570 if (CSECT_SYM_P (symbol
->u
.syment
.n_sclass
)
2571 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2573 /* This is a csect entry. */
2574 fprintf (file
, "AUX ");
2575 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) != XTY_LD
)
2577 BFD_ASSERT (! aux
->fix_scnlen
);
2579 fprintf (file
, "val %5lld",
2580 (long long) aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2582 fprintf (file
, "val %5ld", (long) aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2587 fprintf (file
, "indx ");
2588 if (! aux
->fix_scnlen
)
2590 fprintf (file
, "%4lld",
2591 (long long) aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2593 fprintf (file
, "%4ld", (long) aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2596 fprintf (file
, "%4ld",
2597 (long) (aux
->u
.auxent
.x_csect
.x_scnlen
.p
- table_base
));
2600 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2601 aux
->u
.auxent
.x_csect
.x_parmhash
,
2602 (unsigned int) aux
->u
.auxent
.x_csect
.x_snhash
,
2603 SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
),
2604 SMTYP_ALIGN (aux
->u
.auxent
.x_csect
.x_smtyp
),
2605 (unsigned int) aux
->u
.auxent
.x_csect
.x_smclas
,
2606 aux
->u
.auxent
.x_csect
.x_stab
,
2607 (unsigned int) aux
->u
.auxent
.x_csect
.x_snstab
);
2612 /* Return FALSE to indicate that no special action was taken. */
2620 To write relocations, the back end steps though the
2621 canonical relocation table and create an
2622 @code{internal_reloc}. The symbol index to use is removed from
2623 the @code{offset} field in the symbol table supplied. The
2624 address comes directly from the sum of the section base
2625 address and the relocation offset; the type is dug directly
2626 from the howto field. Then the @code{internal_reloc} is
2627 swapped into the shape of an @code{external_reloc} and written
2635 /* AUX's ld wants relocations to be sorted. */
2637 compare_arelent_ptr (const void * x
, const void * y
)
2639 const arelent
**a
= (const arelent
**) x
;
2640 const arelent
**b
= (const arelent
**) y
;
2641 bfd_size_type aadr
= (*a
)->address
;
2642 bfd_size_type badr
= (*b
)->address
;
2644 return (aadr
< badr
? -1 : badr
< aadr
? 1 : 0);
2647 #endif /* TARG_AUX */
2650 coff_write_relocs (bfd
* abfd
, int first_undef
)
2654 for (s
= abfd
->sections
; s
!= NULL
; s
= s
->next
)
2657 struct external_reloc dst
;
2664 /* Sort relocations before we write them out. */
2667 amt
= s
->reloc_count
;
2668 amt
*= sizeof (arelent
*);
2669 p
= bfd_malloc (amt
);
2670 if (p
== NULL
&& s
->reloc_count
> 0)
2672 memcpy (p
, s
->orelocation
, (size_t) amt
);
2673 qsort (p
, s
->reloc_count
, sizeof (arelent
*), compare_arelent_ptr
);
2677 if (bfd_seek (abfd
, s
->rel_filepos
, SEEK_SET
) != 0)
2681 if (obj_pe (abfd
) && s
->reloc_count
>= 0xffff)
2683 /* Encode real count here as first reloc. */
2684 struct internal_reloc n
;
2686 memset (& n
, 0, sizeof (n
));
2687 /* Add one to count *this* reloc (grr). */
2688 n
.r_vaddr
= s
->reloc_count
+ 1;
2689 coff_swap_reloc_out (abfd
, &n
, &dst
);
2690 if (bfd_bwrite (& dst
, (bfd_size_type
) bfd_coff_relsz (abfd
),
2691 abfd
) != bfd_coff_relsz (abfd
))
2696 for (i
= 0; i
< s
->reloc_count
; i
++)
2698 struct internal_reloc n
;
2701 memset (& n
, 0, sizeof (n
));
2703 /* Now we've renumbered the symbols we know where the
2704 undefined symbols live in the table. Check the reloc
2705 entries for symbols who's output bfd isn't the right one.
2706 This is because the symbol was undefined (which means
2707 that all the pointers are never made to point to the same
2708 place). This is a bad thing,'cause the symbols attached
2709 to the output bfd are indexed, so that the relocation
2710 entries know which symbol index they point to. So we
2711 have to look up the output symbol here. */
2713 if (q
->sym_ptr_ptr
[0] != NULL
&& q
->sym_ptr_ptr
[0]->the_bfd
!= abfd
)
2716 const char *sname
= q
->sym_ptr_ptr
[0]->name
;
2717 asymbol
**outsyms
= abfd
->outsymbols
;
2719 for (j
= first_undef
; outsyms
[j
]; j
++)
2721 const char *intable
= outsyms
[j
]->name
;
2723 if (strcmp (intable
, sname
) == 0)
2725 /* Got a hit, so repoint the reloc. */
2726 q
->sym_ptr_ptr
= outsyms
+ j
;
2732 n
.r_vaddr
= q
->address
+ s
->vma
;
2735 /* The 29k const/consth reloc pair is a real kludge. The consth
2736 part doesn't have a symbol; it has an offset. So rebuilt
2738 if (q
->howto
->type
== R_IHCONST
)
2739 n
.r_symndx
= q
->addend
;
2742 if (q
->sym_ptr_ptr
&& q
->sym_ptr_ptr
[0] != NULL
)
2744 #ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P
2745 if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q
, s
))
2747 if ((*q
->sym_ptr_ptr
)->section
== bfd_abs_section_ptr
2748 && ((*q
->sym_ptr_ptr
)->flags
& BSF_SECTION_SYM
) != 0)
2750 /* This is a relocation relative to the absolute symbol. */
2754 n
.r_symndx
= get_index ((*(q
->sym_ptr_ptr
)));
2755 /* Check to see if the symbol reloc points to a symbol
2756 we don't have in our symbol table. */
2757 if (n
.r_symndx
> obj_conv_table_size (abfd
))
2759 bfd_set_error (bfd_error_bad_value
);
2760 _bfd_error_handler (_("%B: reloc against a non-existant symbol index: %ld"),
2767 #ifdef SWAP_OUT_RELOC_OFFSET
2768 n
.r_offset
= q
->addend
;
2772 /* Work out reloc type from what is required. */
2773 SELECT_RELOC (n
, q
->howto
);
2775 n
.r_type
= q
->howto
->type
;
2777 coff_swap_reloc_out (abfd
, &n
, &dst
);
2779 if (bfd_bwrite (& dst
, (bfd_size_type
) bfd_coff_relsz (abfd
),
2780 abfd
) != bfd_coff_relsz (abfd
))
2793 /* Set flags and magic number of a coff file from architecture and machine
2794 type. Result is TRUE if we can represent the arch&type, FALSE if not. */
2797 coff_set_flags (bfd
* abfd
,
2798 unsigned int *magicp ATTRIBUTE_UNUSED
,
2799 unsigned short *flagsp ATTRIBUTE_UNUSED
)
2801 switch (bfd_get_arch (abfd
))
2806 switch (bfd_get_mach (abfd
))
2809 case bfd_mach_z80strict
:
2811 case bfd_mach_z80full
:
2813 *flagsp
= bfd_get_mach (abfd
) << 12;
2825 switch (bfd_get_mach (abfd
))
2827 case bfd_mach_z8001
: *flagsp
= F_Z8001
; break;
2828 case bfd_mach_z8002
: *flagsp
= F_Z8002
; break;
2829 default: return FALSE
;
2840 *magicp
= I960ROMAGIC
;
2842 switch (bfd_get_mach (abfd
))
2844 case bfd_mach_i960_core
: flags
= F_I960CORE
; break;
2845 case bfd_mach_i960_kb_sb
: flags
= F_I960KB
; break;
2846 case bfd_mach_i960_mc
: flags
= F_I960MC
; break;
2847 case bfd_mach_i960_xa
: flags
= F_I960XA
; break;
2848 case bfd_mach_i960_ca
: flags
= F_I960CA
; break;
2849 case bfd_mach_i960_ka_sa
: flags
= F_I960KA
; break;
2850 case bfd_mach_i960_jx
: flags
= F_I960JX
; break;
2851 case bfd_mach_i960_hx
: flags
= F_I960HX
; break;
2852 default: return FALSE
;
2861 case bfd_arch_tic30
:
2862 *magicp
= TIC30MAGIC
;
2866 #ifdef TICOFF_DEFAULT_MAGIC
2867 case TICOFF_TARGET_ARCH
:
2868 /* If there's no indication of which version we want, use the default. */
2870 *magicp
= TICOFF_DEFAULT_MAGIC
;
2873 /* We may want to output in a different COFF version. */
2874 switch (abfd
->xvec
->name
[4])
2877 *magicp
= TICOFF0MAGIC
;
2880 *magicp
= TICOFF1MAGIC
;
2883 *magicp
= TICOFF2MAGIC
;
2889 TICOFF_TARGET_MACHINE_SET (flagsp
, bfd_get_mach (abfd
));
2893 #ifdef TIC80_ARCH_MAGIC
2894 case bfd_arch_tic80
:
2895 *magicp
= TIC80_ARCH_MAGIC
;
2902 * magicp
= ARMPEMAGIC
;
2904 * magicp
= ARMMAGIC
;
2907 if (APCS_SET (abfd
))
2909 if (APCS_26_FLAG (abfd
))
2910 * flagsp
|= F_APCS26
;
2912 if (APCS_FLOAT_FLAG (abfd
))
2913 * flagsp
|= F_APCS_FLOAT
;
2915 if (PIC_FLAG (abfd
))
2918 if (INTERWORK_SET (abfd
) && INTERWORK_FLAG (abfd
))
2919 * flagsp
|= F_INTERWORK
;
2920 switch (bfd_get_mach (abfd
))
2922 case bfd_mach_arm_2
: * flagsp
|= F_ARM_2
; break;
2923 case bfd_mach_arm_2a
: * flagsp
|= F_ARM_2a
; break;
2924 case bfd_mach_arm_3
: * flagsp
|= F_ARM_3
; break;
2925 case bfd_mach_arm_3M
: * flagsp
|= F_ARM_3M
; break;
2926 case bfd_mach_arm_4
: * flagsp
|= F_ARM_4
; break;
2927 case bfd_mach_arm_4T
: * flagsp
|= F_ARM_4T
; break;
2928 case bfd_mach_arm_5
: * flagsp
|= F_ARM_5
; break;
2929 /* FIXME: we do not have F_ARM vaues greater than F_ARM_5.
2930 See also the comment in coff_set_arch_mach_hook(). */
2931 case bfd_mach_arm_5T
: * flagsp
|= F_ARM_5
; break;
2932 case bfd_mach_arm_5TE
: * flagsp
|= F_ARM_5
; break;
2933 case bfd_mach_arm_XScale
: * flagsp
|= F_ARM_5
; break;
2939 case bfd_arch_powerpc
:
2944 #if defined(I386MAGIC) || defined(AMD64MAGIC)
2946 #if defined(I386MAGIC)
2947 *magicp
= I386MAGIC
;
2950 /* Just overwrite the usual value if we're doing Lynx. */
2951 *magicp
= LYNXCOFFMAGIC
;
2953 #if defined AMD64MAGIC
2954 *magicp
= AMD64MAGIC
;
2961 *magicp
= I860MAGIC
;
2967 *magicp
= IA64MAGIC
;
2973 #ifdef APOLLOM68KMAGIC
2974 *magicp
= APOLLO_COFF_VERSION_NUMBER
;
2976 /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */
2977 #ifdef NAMES_HAVE_UNDERSCORE
2978 *magicp
= MC68KBCSMAGIC
;
2980 *magicp
= MC68MAGIC
;
2984 /* Just overwrite the usual value if we're doing Lynx. */
2985 *magicp
= LYNXCOFFMAGIC
;
2992 *magicp
= MC88OMAGIC
;
2997 case bfd_arch_h8300
:
2998 switch (bfd_get_mach (abfd
))
3000 case bfd_mach_h8300
: *magicp
= H8300MAGIC
; return TRUE
;
3001 case bfd_mach_h8300h
: *magicp
= H8300HMAGIC
; return TRUE
;
3002 case bfd_mach_h8300s
: *magicp
= H8300SMAGIC
; return TRUE
;
3003 case bfd_mach_h8300hn
: *magicp
= H8300HNMAGIC
; return TRUE
;
3004 case bfd_mach_h8300sn
: *magicp
= H8300SNMAGIC
; return TRUE
;
3010 #ifdef SH_ARCH_MAGIC_BIG
3012 #ifdef COFF_IMAGE_WITH_PE
3013 *magicp
= SH_ARCH_MAGIC_WINCE
;
3015 if (bfd_big_endian (abfd
))
3016 *magicp
= SH_ARCH_MAGIC_BIG
;
3018 *magicp
= SH_ARCH_MAGIC_LITTLE
;
3023 #ifdef MIPS_ARCH_MAGIC_WINCE
3025 *magicp
= MIPS_ARCH_MAGIC_WINCE
;
3030 case bfd_arch_sparc
:
3031 *magicp
= SPARCMAGIC
;
3033 /* Just overwrite the usual value if we're doing Lynx. */
3034 *magicp
= LYNXCOFFMAGIC
;
3040 case bfd_arch_h8500
:
3041 *magicp
= H8500MAGIC
;
3047 case bfd_arch_we32k
:
3048 *magicp
= WE32KMAGIC
;
3053 case bfd_arch_rs6000
:
3055 case bfd_arch_powerpc
:
3057 BFD_ASSERT (bfd_get_flavour (abfd
) == bfd_target_xcoff_flavour
);
3058 *magicp
= bfd_xcoff_magic_number (abfd
);
3063 case bfd_arch_mcore
:
3064 * magicp
= MCOREMAGIC
;
3074 default: /* Unknown architecture. */
3075 /* Fall through to "return FALSE" below, to avoid
3076 "statement never reached" errors on the one below. */
3084 coff_set_arch_mach (bfd
* abfd
,
3085 enum bfd_architecture arch
,
3086 unsigned long machine
)
3089 unsigned short dummy2
;
3091 if (! bfd_default_set_arch_mach (abfd
, arch
, machine
))
3094 if (arch
!= bfd_arch_unknown
3095 && ! coff_set_flags (abfd
, &dummy1
, &dummy2
))
3096 return FALSE
; /* We can't represent this type. */
3098 return TRUE
; /* We're easy... */
3101 #ifdef COFF_IMAGE_WITH_PE
3103 /* This is used to sort sections by VMA, as required by PE image
3107 sort_by_secaddr (const void * arg1
, const void * arg2
)
3109 const asection
*a
= *(const asection
**) arg1
;
3110 const asection
*b
= *(const asection
**) arg2
;
3112 if (a
->vma
< b
->vma
)
3114 else if (a
->vma
> b
->vma
)
3120 #endif /* COFF_IMAGE_WITH_PE */
3122 /* Calculate the file position for each section. */
3125 #define ALIGN_SECTIONS_IN_FILE
3127 #if defined(TIC80COFF) || defined(TICOFF)
3128 #undef ALIGN_SECTIONS_IN_FILE
3132 coff_compute_section_file_positions (bfd
* abfd
)
3135 file_ptr sofar
= bfd_coff_filhsz (abfd
);
3136 bfd_boolean align_adjust
;
3137 unsigned int target_index
;
3138 #ifdef ALIGN_SECTIONS_IN_FILE
3139 asection
*previous
= NULL
;
3143 #ifdef COFF_IMAGE_WITH_PE
3146 if (coff_data (abfd
)->link_info
3147 || (pe_data (abfd
) && pe_data (abfd
)->pe_opthdr
.FileAlignment
))
3149 page_size
= pe_data (abfd
)->pe_opthdr
.FileAlignment
;
3151 /* If no file alignment has been set, default to one.
3152 This repairs 'ld -r' for arm-wince-pe target. */
3157 page_size
= PE_DEF_FILE_ALIGNMENT
;
3159 #ifdef COFF_PAGE_SIZE
3160 int page_size
= COFF_PAGE_SIZE
;
3165 /* On XCOFF, if we have symbols, set up the .debug section. */
3166 if (bfd_get_symcount (abfd
) > 0)
3169 bfd_size_type i
, symcount
;
3173 symcount
= bfd_get_symcount (abfd
);
3174 for (symp
= abfd
->outsymbols
, i
= 0; i
< symcount
; symp
++, i
++)
3176 coff_symbol_type
*cf
;
3178 cf
= coff_symbol_from (abfd
, *symp
);
3180 && cf
->native
!= NULL
3181 && SYMNAME_IN_DEBUG (&cf
->native
->u
.syment
))
3185 len
= strlen (bfd_asymbol_name (*symp
));
3186 if (len
> SYMNMLEN
|| bfd_coff_force_symnames_in_strings (abfd
))
3187 sz
+= len
+ 1 + bfd_coff_debug_string_prefix_length (abfd
);
3194 dsec
= bfd_make_section_old_way (abfd
, DOT_DEBUG
);
3198 dsec
->flags
|= SEC_HAS_CONTENTS
;
3203 if (bfd_get_start_address (abfd
))
3204 /* A start address may have been added to the original file. In this
3205 case it will need an optional header to record it. */
3206 abfd
->flags
|= EXEC_P
;
3208 if (abfd
->flags
& EXEC_P
)
3209 sofar
+= bfd_coff_aoutsz (abfd
);
3211 else if (xcoff_data (abfd
)->full_aouthdr
)
3212 sofar
+= bfd_coff_aoutsz (abfd
);
3214 sofar
+= SMALL_AOUTSZ
;
3217 sofar
+= abfd
->section_count
* bfd_coff_scnhsz (abfd
);
3220 /* XCOFF handles overflows in the reloc and line number count fields
3221 by allocating a new section header to hold the correct counts. */
3222 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3223 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3224 sofar
+= bfd_coff_scnhsz (abfd
);
3227 #ifdef COFF_IMAGE_WITH_PE
3229 /* PE requires the sections to be in memory order when listed in
3230 the section headers. It also does not like empty loadable
3231 sections. The sections apparently do not have to be in the
3232 right order in the image file itself, but we do need to get the
3233 target_index values right. */
3236 asection
**section_list
;
3240 #ifdef COFF_PAGE_SIZE
3241 /* Clear D_PAGED if section alignment is smaller than
3243 if (pe_data (abfd
)->pe_opthdr
.SectionAlignment
< COFF_PAGE_SIZE
)
3244 abfd
->flags
&= ~D_PAGED
;
3248 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3251 /* We allocate an extra cell to simplify the final loop. */
3252 amt
= sizeof (struct asection
*) * (count
+ 1);
3253 section_list
= (asection
**) bfd_malloc (amt
);
3254 if (section_list
== NULL
)
3258 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3260 section_list
[i
] = current
;
3263 section_list
[i
] = NULL
;
3265 qsort (section_list
, count
, sizeof (asection
*), sort_by_secaddr
);
3267 /* Rethread the linked list into sorted order; at the same time,
3268 assign target_index values. */
3270 abfd
->sections
= NULL
;
3271 abfd
->section_last
= NULL
;
3272 for (i
= 0; i
< count
; i
++)
3274 current
= section_list
[i
];
3275 bfd_section_list_append (abfd
, current
);
3277 /* Later, if the section has zero size, we'll be throwing it
3278 away, so we don't want to number it now. Note that having
3279 a zero size and having real contents are different
3280 concepts: .bss has no contents, but (usually) non-zero
3282 if (current
->size
== 0)
3284 /* Discard. However, it still might have (valid) symbols
3285 in it, so arbitrarily set it to section 1 (indexing is
3286 1-based here; usually .text). __end__ and other
3287 contents of .endsection really have this happen.
3288 FIXME: This seems somewhat dubious. */
3289 current
->target_index
= 1;
3292 current
->target_index
= target_index
++;
3295 free (section_list
);
3297 #else /* ! COFF_IMAGE_WITH_PE */
3299 /* Set the target_index field. */
3301 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3302 current
->target_index
= target_index
++;
3304 #endif /* ! COFF_IMAGE_WITH_PE */
3306 if (target_index
>= bfd_coff_max_nscns (abfd
))
3308 bfd_set_error (bfd_error_file_too_big
);
3309 (*_bfd_error_handler
)
3310 (_("%B: too many sections (%d)"), abfd
, target_index
);
3314 align_adjust
= FALSE
;
3315 for (current
= abfd
->sections
;
3317 current
= current
->next
)
3319 #ifdef COFF_IMAGE_WITH_PE
3320 /* With PE we have to pad each section to be a multiple of its
3321 page size too, and remember both sizes. */
3322 if (coff_section_data (abfd
, current
) == NULL
)
3324 bfd_size_type amt
= sizeof (struct coff_section_tdata
);
3326 current
->used_by_bfd
= bfd_zalloc (abfd
, amt
);
3327 if (current
->used_by_bfd
== NULL
)
3330 if (pei_section_data (abfd
, current
) == NULL
)
3332 bfd_size_type amt
= sizeof (struct pei_section_tdata
);
3334 coff_section_data (abfd
, current
)->tdata
= bfd_zalloc (abfd
, amt
);
3335 if (coff_section_data (abfd
, current
)->tdata
== NULL
)
3338 if (pei_section_data (abfd
, current
)->virt_size
== 0)
3339 pei_section_data (abfd
, current
)->virt_size
= current
->size
;
3342 /* Only deal with sections which have contents. */
3343 if (!(current
->flags
& SEC_HAS_CONTENTS
))
3346 current
->rawsize
= current
->size
;
3348 #ifdef COFF_IMAGE_WITH_PE
3349 /* Make sure we skip empty sections in a PE image. */
3350 if (current
->size
== 0)
3354 /* Align the sections in the file to the same boundary on
3355 which they are aligned in virtual memory. I960 doesn't
3356 do this (FIXME) so we can stay in sync with Intel. 960
3357 doesn't yet page from files... */
3358 #ifdef ALIGN_SECTIONS_IN_FILE
3359 if ((abfd
->flags
& EXEC_P
) != 0)
3361 /* Make sure this section is aligned on the right boundary - by
3362 padding the previous section up if necessary. */
3365 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
3368 /* Make sure the file offset and the vma of .text/.data are at the
3369 same page offset, so that the file can be mmap'ed without being
3370 relocated. Failing that, AIX is able to load and execute the
3371 program, but it will be silently relocated (possible as
3372 executables are PIE). But the relocation is slightly costly and
3373 complexify the use of addr2line or gdb. So better to avoid it,
3374 like does the native linker. Usually gnu ld makes sure that
3375 the vma of .text is the file offset so this issue shouldn't
3376 appear unless you are stripping such an executable.
3378 AIX loader checks the text section alignment of (vma - filepos),
3379 and the native linker doesn't try to align the text sections.
3382 0 .text 000054cc 10000128 10000128 00000128 2**5
3383 CONTENTS, ALLOC, LOAD, CODE
3386 if (!strcmp (current
->name
, _TEXT
)
3387 || !strcmp (current
->name
, _DATA
))
3389 bfd_vma align
= 4096;
3390 bfd_vma sofar_off
= sofar
% align
;
3391 bfd_vma vma_off
= current
->vma
% align
;
3393 if (vma_off
> sofar_off
)
3394 sofar
+= vma_off
- sofar_off
;
3395 else if (vma_off
< sofar_off
)
3396 sofar
+= align
+ vma_off
- sofar_off
;
3399 if (previous
!= NULL
)
3400 previous
->size
+= sofar
- old_sofar
;
3405 /* In demand paged files the low order bits of the file offset
3406 must match the low order bits of the virtual address. */
3407 #ifdef COFF_PAGE_SIZE
3408 if ((abfd
->flags
& D_PAGED
) != 0
3409 && (current
->flags
& SEC_ALLOC
) != 0)
3410 sofar
+= (current
->vma
- (bfd_vma
) sofar
) % page_size
;
3412 current
->filepos
= sofar
;
3414 #ifdef COFF_IMAGE_WITH_PE
3415 /* Set the padded size. */
3416 current
->size
= (current
->size
+ page_size
- 1) & -page_size
;
3419 sofar
+= current
->size
;
3421 #ifdef ALIGN_SECTIONS_IN_FILE
3422 /* Make sure that this section is of the right size too. */
3423 if ((abfd
->flags
& EXEC_P
) == 0)
3425 bfd_size_type old_size
;
3427 old_size
= current
->size
;
3428 current
->size
= BFD_ALIGN (current
->size
,
3429 1 << current
->alignment_power
);
3430 align_adjust
= current
->size
!= old_size
;
3431 sofar
+= current
->size
- old_size
;
3436 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
3437 align_adjust
= sofar
!= old_sofar
;
3438 current
->size
+= sofar
- old_sofar
;
3442 #ifdef COFF_IMAGE_WITH_PE
3443 /* For PE we need to make sure we pad out to the aligned
3444 size, in case the caller only writes out data to the
3446 if (pei_section_data (abfd
, current
)->virt_size
< current
->size
)
3447 align_adjust
= TRUE
;
3451 /* Force .lib sections to start at zero. The vma is then
3452 incremented in coff_set_section_contents. This is right for
3454 if (strcmp (current
->name
, _LIB
) == 0)
3455 (void) bfd_set_section_vma (abfd
, current
, 0);
3458 #ifdef ALIGN_SECTIONS_IN_FILE
3463 /* It is now safe to write to the output file. If we needed an
3464 alignment adjustment for the last section, then make sure that
3465 there is a byte at offset sofar. If there are no symbols and no
3466 relocs, then nothing follows the last section. If we don't force
3467 the last byte out, then the file may appear to be truncated. */
3473 if (bfd_seek (abfd
, sofar
- 1, SEEK_SET
) != 0
3474 || bfd_bwrite (&b
, (bfd_size_type
) 1, abfd
) != 1)
3478 /* Make sure the relocations are aligned. We don't need to make
3479 sure that this byte exists, because it will only matter if there
3480 really are relocs. */
3481 sofar
= BFD_ALIGN (sofar
, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER
);
3483 obj_relocbase (abfd
) = sofar
;
3484 abfd
->output_has_begun
= TRUE
;
3489 #ifdef COFF_IMAGE_WITH_PE
3491 static unsigned int pelength
;
3492 static unsigned int peheader
;
3495 coff_read_word (bfd
*abfd
, unsigned int *value
)
3500 status
= bfd_bread (b
, (bfd_size_type
) 2, abfd
);
3508 *value
= (unsigned int) b
[0];
3510 *value
= (unsigned int) (b
[0] + (b
[1] << 8));
3512 pelength
+= (unsigned int) status
;
3518 coff_compute_checksum (bfd
*abfd
)
3520 bfd_boolean more_data
;
3527 filepos
= (file_ptr
) 0;
3531 if (bfd_seek (abfd
, filepos
, SEEK_SET
) != 0)
3534 more_data
= coff_read_word (abfd
, &value
);
3536 total
= 0xffff & (total
+ (total
>> 0x10));
3541 return (0xffff & (total
+ (total
>> 0x10)));
3545 coff_apply_checksum (bfd
*abfd
)
3547 unsigned int computed
;
3548 unsigned int checksum
= 0;
3550 if (bfd_seek (abfd
, 0x3c, SEEK_SET
) != 0)
3553 if (!coff_read_word (abfd
, &peheader
))
3556 if (bfd_seek (abfd
, peheader
+ 0x58, SEEK_SET
) != 0)
3560 bfd_bwrite (&checksum
, (bfd_size_type
) 4, abfd
);
3562 if (bfd_seek (abfd
, peheader
, SEEK_SET
) != 0)
3565 computed
= coff_compute_checksum (abfd
);
3567 checksum
= computed
+ pelength
;
3569 if (bfd_seek (abfd
, peheader
+ 0x58, SEEK_SET
) != 0)
3572 bfd_bwrite (&checksum
, (bfd_size_type
) 4, abfd
);
3577 #endif /* COFF_IMAGE_WITH_PE */
3580 coff_write_object_contents (bfd
* abfd
)
3583 bfd_boolean hasrelocs
= FALSE
;
3584 bfd_boolean haslinno
= FALSE
;
3585 #ifdef COFF_IMAGE_WITH_PE
3586 bfd_boolean hasdebug
= FALSE
;
3589 file_ptr reloc_base
;
3590 file_ptr lineno_base
;
3592 unsigned long reloc_size
= 0, reloc_count
= 0;
3593 unsigned long lnno_size
= 0;
3594 bfd_boolean long_section_names
;
3595 asection
*text_sec
= NULL
;
3596 asection
*data_sec
= NULL
;
3597 asection
*bss_sec
= NULL
;
3598 struct internal_filehdr internal_f
;
3599 struct internal_aouthdr internal_a
;
3600 #ifdef COFF_LONG_SECTION_NAMES
3601 size_t string_size
= STRING_SIZE_SIZE
;
3604 bfd_set_error (bfd_error_system_call
);
3606 /* Make a pass through the symbol table to count line number entries and
3607 put them into the correct asections. */
3608 lnno_size
= coff_count_linenumbers (abfd
) * bfd_coff_linesz (abfd
);
3610 if (! abfd
->output_has_begun
)
3612 if (! coff_compute_section_file_positions (abfd
))
3616 reloc_base
= obj_relocbase (abfd
);
3618 /* Work out the size of the reloc and linno areas. */
3620 for (current
= abfd
->sections
; current
!= NULL
; current
=
3624 /* We store the actual reloc count in the first reloc's addr. */
3625 if (obj_pe (abfd
) && current
->reloc_count
>= 0xffff)
3628 reloc_count
+= current
->reloc_count
;
3631 reloc_size
= reloc_count
* bfd_coff_relsz (abfd
);
3633 lineno_base
= reloc_base
+ reloc_size
;
3634 sym_base
= lineno_base
+ lnno_size
;
3636 /* Indicate in each section->line_filepos its actual file address. */
3637 for (current
= abfd
->sections
; current
!= NULL
; current
=
3640 if (current
->lineno_count
)
3642 current
->line_filepos
= lineno_base
;
3643 current
->moving_line_filepos
= lineno_base
;
3644 lineno_base
+= current
->lineno_count
* bfd_coff_linesz (abfd
);
3647 current
->line_filepos
= 0;
3649 if (current
->reloc_count
)
3651 current
->rel_filepos
= reloc_base
;
3652 reloc_base
+= current
->reloc_count
* bfd_coff_relsz (abfd
);
3654 /* Extra reloc to hold real count. */
3655 if (obj_pe (abfd
) && current
->reloc_count
>= 0xffff)
3656 reloc_base
+= bfd_coff_relsz (abfd
);
3660 current
->rel_filepos
= 0;
3663 /* Write section headers to the file. */
3664 internal_f
.f_nscns
= 0;
3666 if ((abfd
->flags
& EXEC_P
) != 0)
3667 scn_base
= bfd_coff_filhsz (abfd
) + bfd_coff_aoutsz (abfd
);
3670 scn_base
= bfd_coff_filhsz (abfd
);
3673 if (xcoff_data (abfd
)->full_aouthdr
)
3674 scn_base
+= bfd_coff_aoutsz (abfd
);
3676 scn_base
+= SMALL_AOUTSZ
;
3681 if (bfd_seek (abfd
, scn_base
, SEEK_SET
) != 0)
3684 long_section_names
= FALSE
;
3685 for (current
= abfd
->sections
;
3687 current
= current
->next
)
3689 struct internal_scnhdr section
;
3690 #ifdef COFF_IMAGE_WITH_PE
3691 bfd_boolean is_reloc_section
= FALSE
;
3693 if (strcmp (current
->name
, DOT_RELOC
) == 0)
3695 is_reloc_section
= TRUE
;
3697 pe_data (abfd
)->has_reloc_section
= 1;
3701 internal_f
.f_nscns
++;
3703 strncpy (section
.s_name
, current
->name
, SCNNMLEN
);
3705 #ifdef COFF_LONG_SECTION_NAMES
3706 /* Handle long section names as in PE. This must be compatible
3707 with the code in coff_write_symbols and _bfd_coff_final_link. */
3708 if (bfd_coff_long_section_names (abfd
))
3712 len
= strlen (current
->name
);
3715 /* The s_name field is defined to be NUL-padded but need not be
3716 NUL-terminated. We use a temporary buffer so that we can still
3717 sprintf all eight chars without splatting a terminating NUL
3718 over the first byte of the following member (s_paddr). */
3719 char s_name_buf
[SCNNMLEN
+ 1];
3721 /* An inherent limitation of the /nnnnnnn notation used to indicate
3722 the offset of the long name in the string table is that we
3723 cannot address entries beyone the ten million byte boundary. */
3724 if (string_size
>= 10000000)
3726 bfd_set_error (bfd_error_file_too_big
);
3727 (*_bfd_error_handler
)
3728 (_("%B: section %s: string table overflow at offset %ld"),
3729 abfd
, current
->name
, string_size
);
3733 /* snprintf not strictly necessary now we've verified the value
3734 has less than eight ASCII digits, but never mind. */
3735 snprintf (s_name_buf
, SCNNMLEN
+ 1, "/%lu", (unsigned long) string_size
);
3736 /* Then strncpy takes care of any padding for us. */
3737 strncpy (section
.s_name
, s_name_buf
, SCNNMLEN
);
3738 string_size
+= len
+ 1;
3739 long_section_names
= TRUE
;
3745 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3746 Ian Taylor <ian@cygnus.com>. */
3747 if (strcmp (current
->name
, _LIB
) == 0)
3748 section
.s_vaddr
= 0;
3751 section
.s_vaddr
= current
->vma
;
3752 section
.s_paddr
= current
->lma
;
3753 section
.s_size
= current
->size
;
3754 #ifdef coff_get_section_load_page
3755 section
.s_page
= coff_get_section_load_page (current
);
3761 section
.s_paddr
= 0;
3763 #ifdef COFF_IMAGE_WITH_PE
3764 /* Reminder: s_paddr holds the virtual size of the section. */
3765 if (coff_section_data (abfd
, current
) != NULL
3766 && pei_section_data (abfd
, current
) != NULL
)
3767 section
.s_paddr
= pei_section_data (abfd
, current
)->virt_size
;
3769 section
.s_paddr
= 0;
3772 /* If this section has no size or is unloadable then the scnptr
3774 if (current
->size
== 0
3775 || (current
->flags
& (SEC_LOAD
| SEC_HAS_CONTENTS
)) == 0)
3776 section
.s_scnptr
= 0;
3778 section
.s_scnptr
= current
->filepos
;
3780 section
.s_relptr
= current
->rel_filepos
;
3781 section
.s_lnnoptr
= current
->line_filepos
;
3782 section
.s_nreloc
= current
->reloc_count
;
3783 section
.s_nlnno
= current
->lineno_count
;
3784 #ifndef COFF_IMAGE_WITH_PE
3785 /* In PEI, relocs come in the .reloc section. */
3786 if (current
->reloc_count
!= 0)
3789 if (current
->lineno_count
!= 0)
3791 #ifdef COFF_IMAGE_WITH_PE
3792 if ((current
->flags
& SEC_DEBUGGING
) != 0
3793 && ! is_reloc_section
)
3799 /* Indicate the use of an XCOFF overflow section header. */
3800 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3802 section
.s_nreloc
= 0xffff;
3803 section
.s_nlnno
= 0xffff;
3808 section
.s_flags
= sec_to_styp_flags (current
->name
, current
->flags
);
3810 if (!strcmp (current
->name
, _TEXT
))
3812 else if (!strcmp (current
->name
, _DATA
))
3814 else if (!strcmp (current
->name
, _BSS
))
3818 section
.s_align
= (current
->alignment_power
3819 ? 1 << current
->alignment_power
3823 /* TI COFF puts the alignment power in bits 8-11 of the flags. */
3824 section
.s_flags
|= (current
->alignment_power
& 0xF) << 8;
3826 #ifdef COFF_ENCODE_ALIGNMENT
3827 COFF_ENCODE_ALIGNMENT(section
, current
->alignment_power
);
3830 #ifdef COFF_IMAGE_WITH_PE
3831 /* Suppress output of the sections if they are null. ld
3832 includes the bss and data sections even if there is no size
3833 assigned to them. NT loader doesn't like it if these section
3834 headers are included if the sections themselves are not
3835 needed. See also coff_compute_section_file_positions. */
3836 if (section
.s_size
== 0)
3837 internal_f
.f_nscns
--;
3842 bfd_size_type amt
= bfd_coff_scnhsz (abfd
);
3844 if (coff_swap_scnhdr_out (abfd
, §ion
, &buff
) == 0
3845 || bfd_bwrite (& buff
, amt
, abfd
) != amt
)
3850 /* PE stores COMDAT section information in the symbol table. If
3851 this section is supposed to have some COMDAT info, track down
3852 the symbol in the symbol table and modify it. */
3853 if ((current
->flags
& SEC_LINK_ONCE
) != 0)
3855 unsigned int i
, count
;
3857 coff_symbol_type
*csym
= NULL
;
3861 count
= bfd_get_symcount (abfd
);
3862 for (i
= 0, psym
= abfd
->outsymbols
; i
< count
; i
++, psym
++)
3864 if ((*psym
)->section
!= current
)
3867 /* Remember the location of the first symbol in this
3869 if (psymsec
== NULL
)
3872 /* See if this is the section symbol. */
3873 if (strcmp ((*psym
)->name
, current
->name
) == 0)
3875 csym
= coff_symbol_from (abfd
, *psym
);
3877 || csym
->native
== NULL
3878 || csym
->native
->u
.syment
.n_numaux
< 1
3879 || csym
->native
->u
.syment
.n_sclass
!= C_STAT
3880 || csym
->native
->u
.syment
.n_type
!= T_NULL
)
3883 /* Here *PSYM is the section symbol for CURRENT. */
3890 Note that we might not if we're converting the file from
3891 some other object file format. */
3894 combined_entry_type
*aux
;
3896 /* We don't touch the x_checksum field. The
3897 x_associated field is not currently supported. */
3899 aux
= csym
->native
+ 1;
3900 switch (current
->flags
& SEC_LINK_DUPLICATES
)
3902 case SEC_LINK_DUPLICATES_DISCARD
:
3903 aux
->u
.auxent
.x_scn
.x_comdat
= IMAGE_COMDAT_SELECT_ANY
;
3906 case SEC_LINK_DUPLICATES_ONE_ONLY
:
3907 aux
->u
.auxent
.x_scn
.x_comdat
=
3908 IMAGE_COMDAT_SELECT_NODUPLICATES
;
3911 case SEC_LINK_DUPLICATES_SAME_SIZE
:
3912 aux
->u
.auxent
.x_scn
.x_comdat
=
3913 IMAGE_COMDAT_SELECT_SAME_SIZE
;
3916 case SEC_LINK_DUPLICATES_SAME_CONTENTS
:
3917 aux
->u
.auxent
.x_scn
.x_comdat
=
3918 IMAGE_COMDAT_SELECT_EXACT_MATCH
;
3922 /* The COMDAT symbol must be the first symbol from this
3923 section in the symbol table. In order to make this
3924 work, we move the COMDAT symbol before the first
3925 symbol we found in the search above. It's OK to
3926 rearrange the symbol table at this point, because
3927 coff_renumber_symbols is going to rearrange it
3928 further and fix up all the aux entries. */
3929 if (psym
!= psymsec
)
3935 for (pcopy
= psym
; pcopy
> psymsec
; pcopy
--)
3936 pcopy
[0] = pcopy
[-1];
3941 #endif /* COFF_WITH_PE */
3946 /* XCOFF handles overflows in the reloc and line number count fields
3947 by creating a new section header to hold the correct values. */
3948 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3950 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3952 struct internal_scnhdr scnhdr
;
3956 internal_f
.f_nscns
++;
3957 memcpy (scnhdr
.s_name
, ".ovrflo", 8);
3958 scnhdr
.s_paddr
= current
->reloc_count
;
3959 scnhdr
.s_vaddr
= current
->lineno_count
;
3961 scnhdr
.s_scnptr
= 0;
3962 scnhdr
.s_relptr
= current
->rel_filepos
;
3963 scnhdr
.s_lnnoptr
= current
->line_filepos
;
3964 scnhdr
.s_nreloc
= current
->target_index
;
3965 scnhdr
.s_nlnno
= current
->target_index
;
3966 scnhdr
.s_flags
= STYP_OVRFLO
;
3967 amt
= bfd_coff_scnhsz (abfd
);
3968 if (coff_swap_scnhdr_out (abfd
, &scnhdr
, &buff
) == 0
3969 || bfd_bwrite (& buff
, amt
, abfd
) != amt
)
3976 /* OK, now set up the filehdr... */
3978 /* Don't include the internal abs section in the section count */
3980 /* We will NOT put a fucking timestamp in the header here. Every time you
3981 put it back, I will come in and take it out again. I'm sorry. This
3982 field does not belong here. We fill it with a 0 so it compares the
3983 same but is not a reasonable time. -- gnu@cygnus.com */
3984 internal_f
.f_timdat
= 0;
3985 internal_f
.f_flags
= 0;
3987 if (abfd
->flags
& EXEC_P
)
3988 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3991 internal_f
.f_opthdr
= 0;
3994 if (xcoff_data (abfd
)->full_aouthdr
)
3995 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3997 internal_f
.f_opthdr
= SMALL_AOUTSZ
;
4003 internal_f
.f_flags
|= F_RELFLG
;
4005 internal_f
.f_flags
|= F_LNNO
;
4006 if (abfd
->flags
& EXEC_P
)
4007 internal_f
.f_flags
|= F_EXEC
;
4008 #ifdef COFF_IMAGE_WITH_PE
4010 internal_f
.f_flags
|= IMAGE_FILE_DEBUG_STRIPPED
;
4011 if (pe_data (abfd
)->real_flags
& IMAGE_FILE_LARGE_ADDRESS_AWARE
)
4012 internal_f
.f_flags
|= IMAGE_FILE_LARGE_ADDRESS_AWARE
;
4015 #ifndef COFF_WITH_pex64
4017 internal_f
.f_flags
|= IMAGE_FILE_32BIT_MACHINE
;
4019 if (bfd_little_endian (abfd
))
4020 internal_f
.f_flags
|= F_AR32WR
;
4022 internal_f
.f_flags
|= F_AR32W
;
4027 /* Target id is used in TI COFF v1 and later; COFF0 won't use this field,
4028 but it doesn't hurt to set it internally. */
4029 internal_f
.f_target_id
= TI_TARGET_ID
;
4031 #ifdef TIC80_TARGET_ID
4032 internal_f
.f_target_id
= TIC80_TARGET_ID
;
4035 /* FIXME, should do something about the other byte orders and
4039 if ((abfd
->flags
& DYNAMIC
) != 0)
4040 internal_f
.f_flags
|= F_SHROBJ
;
4041 if (bfd_get_section_by_name (abfd
, _LOADER
) != NULL
)
4042 internal_f
.f_flags
|= F_DYNLOAD
;
4045 memset (&internal_a
, 0, sizeof internal_a
);
4047 /* Set up architecture-dependent stuff. */
4049 unsigned int magic
= 0;
4050 unsigned short flags
= 0;
4052 coff_set_flags (abfd
, &magic
, &flags
);
4053 internal_f
.f_magic
= magic
;
4054 internal_f
.f_flags
|= flags
;
4055 /* ...and the "opt"hdr... */
4057 #ifdef TICOFF_AOUT_MAGIC
4058 internal_a
.magic
= TICOFF_AOUT_MAGIC
;
4059 #define __A_MAGIC_SET__
4062 internal_a
.magic
= TIC80_ARCH_MAGIC
;
4063 #define __A_MAGIC_SET__
4066 /* FIXME: What are the a.out magic numbers for the i860? */
4067 internal_a
.magic
= 0;
4068 #define __A_MAGIC_SET__
4071 internal_a
.magic
= (magic
== I960ROMAGIC
? NMAGIC
: OMAGIC
);
4072 #define __A_MAGIC_SET__
4075 #define __A_MAGIC_SET__
4076 internal_a
.magic
= PAGEMAGICBCS
;
4080 #define __A_MAGIC_SET__
4081 internal_a
.magic
= APOLLO_COFF_VERSION_NUMBER
;
4084 #if defined(M68) || defined(WE32K) || defined(M68K)
4085 #define __A_MAGIC_SET__
4087 internal_a
.magic
= LYNXCOFFMAGIC
;
4089 #if defined(TARG_AUX)
4090 internal_a
.magic
= (abfd
->flags
& D_PAGED
? PAGEMAGICPEXECPAGED
:
4091 abfd
->flags
& WP_TEXT
? PAGEMAGICPEXECSWAPPED
:
4092 PAGEMAGICEXECSWAPPED
);
4094 #if defined (PAGEMAGICPEXECPAGED)
4095 internal_a
.magic
= PAGEMAGICPEXECPAGED
;
4097 #endif /* TARG_AUX */
4099 #endif /* M68 || WE32K || M68K */
4102 #define __A_MAGIC_SET__
4103 internal_a
.magic
= ZMAGIC
;
4107 #define __A_MAGIC_SET__
4108 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
4111 #if defined MCORE_PE
4112 #define __A_MAGIC_SET__
4113 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
4117 #define __A_MAGIC_SET__
4119 internal_a
.magic
= LYNXCOFFMAGIC
;
4121 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR64_MAGIC
;
4123 internal_a
.magic
= ZMAGIC
;
4128 #define __A_MAGIC_SET__
4129 internal_a
.magic
= PE32PMAGIC
;
4133 #define __A_MAGIC_SET__
4135 internal_a
.magic
= LYNXCOFFMAGIC
;
4140 #define __A_MAGIC_SET__
4141 internal_a
.magic
= (abfd
->flags
& D_PAGED
) ? RS6K_AOUTHDR_ZMAGIC
:
4142 (abfd
->flags
& WP_TEXT
) ? RS6K_AOUTHDR_NMAGIC
:
4143 RS6K_AOUTHDR_OMAGIC
;
4146 #if defined(SH) && defined(COFF_WITH_PE)
4147 #define __A_MAGIC_SET__
4148 internal_a
.magic
= SH_PE_MAGIC
;
4151 #if defined(MIPS) && defined(COFF_WITH_PE)
4152 #define __A_MAGIC_SET__
4153 internal_a
.magic
= MIPS_PE_MAGIC
;
4156 #ifndef __A_MAGIC_SET__
4157 #include "Your aouthdr magic number is not being set!"
4159 #undef __A_MAGIC_SET__
4163 /* FIXME: Does anybody ever set this to another value? */
4164 internal_a
.vstamp
= 0;
4166 /* Now should write relocs, strings, syms. */
4167 obj_sym_filepos (abfd
) = sym_base
;
4169 if (bfd_get_symcount (abfd
) != 0)
4173 if (!coff_renumber_symbols (abfd
, &firstundef
))
4175 coff_mangle_symbols (abfd
);
4176 if (! coff_write_symbols (abfd
))
4178 if (! coff_write_linenumbers (abfd
))
4180 if (! coff_write_relocs (abfd
, firstundef
))
4183 #ifdef COFF_LONG_SECTION_NAMES
4184 else if (long_section_names
&& ! obj_coff_strings_written (abfd
))
4186 /* If we have long section names we have to write out the string
4187 table even if there are no symbols. */
4188 if (! coff_write_symbols (abfd
))
4192 #ifdef COFF_IMAGE_WITH_PE
4194 else if ((abfd
->flags
& EXEC_P
) != 0)
4198 /* PowerPC PE appears to require that all executable files be
4199 rounded up to the page size. */
4202 (file_ptr
) BFD_ALIGN (sym_base
, COFF_PAGE_SIZE
) - 1,
4204 || bfd_bwrite (&b
, (bfd_size_type
) 1, abfd
) != 1)
4210 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
4211 backend linker, and obj_raw_syment_count is not valid until after
4212 coff_write_symbols is called. */
4213 if (obj_raw_syment_count (abfd
) != 0)
4215 internal_f
.f_symptr
= sym_base
;
4217 /* AIX appears to require that F_RELFLG not be set if there are
4218 local symbols but no relocations. */
4219 internal_f
.f_flags
&=~ F_RELFLG
;
4224 if (long_section_names
)
4225 internal_f
.f_symptr
= sym_base
;
4227 internal_f
.f_symptr
= 0;
4228 internal_f
.f_flags
|= F_LSYMS
;
4233 internal_a
.tsize
= text_sec
->size
;
4234 internal_a
.text_start
= internal_a
.tsize
? text_sec
->vma
: 0;
4238 internal_a
.dsize
= data_sec
->size
;
4239 internal_a
.data_start
= internal_a
.dsize
? data_sec
->vma
: 0;
4243 internal_a
.bsize
= bss_sec
->size
;
4244 if (internal_a
.bsize
&& bss_sec
->vma
< internal_a
.data_start
)
4245 internal_a
.data_start
= bss_sec
->vma
;
4248 internal_a
.entry
= bfd_get_start_address (abfd
);
4249 internal_f
.f_nsyms
= obj_raw_syment_count (abfd
);
4252 if (xcoff_data (abfd
)->full_aouthdr
)
4255 asection
*loader_sec
;
4257 internal_a
.vstamp
= 1;
4259 internal_a
.o_snentry
= xcoff_data (abfd
)->snentry
;
4260 if (internal_a
.o_snentry
== 0)
4261 internal_a
.entry
= (bfd_vma
) -1;
4263 if (text_sec
!= NULL
)
4265 internal_a
.o_sntext
= text_sec
->target_index
;
4266 internal_a
.o_algntext
= bfd_get_section_alignment (abfd
, text_sec
);
4270 internal_a
.o_sntext
= 0;
4271 internal_a
.o_algntext
= 0;
4273 if (data_sec
!= NULL
)
4275 internal_a
.o_sndata
= data_sec
->target_index
;
4276 internal_a
.o_algndata
= bfd_get_section_alignment (abfd
, data_sec
);
4280 internal_a
.o_sndata
= 0;
4281 internal_a
.o_algndata
= 0;
4283 loader_sec
= bfd_get_section_by_name (abfd
, ".loader");
4284 if (loader_sec
!= NULL
)
4285 internal_a
.o_snloader
= loader_sec
->target_index
;
4287 internal_a
.o_snloader
= 0;
4288 if (bss_sec
!= NULL
)
4289 internal_a
.o_snbss
= bss_sec
->target_index
;
4291 internal_a
.o_snbss
= 0;
4293 toc
= xcoff_data (abfd
)->toc
;
4294 internal_a
.o_toc
= toc
;
4295 internal_a
.o_sntoc
= xcoff_data (abfd
)->sntoc
;
4297 internal_a
.o_modtype
= xcoff_data (abfd
)->modtype
;
4298 if (xcoff_data (abfd
)->cputype
!= -1)
4299 internal_a
.o_cputype
= xcoff_data (abfd
)->cputype
;
4302 switch (bfd_get_arch (abfd
))
4304 case bfd_arch_rs6000
:
4305 internal_a
.o_cputype
= 4;
4307 case bfd_arch_powerpc
:
4308 if (bfd_get_mach (abfd
) == bfd_mach_ppc
)
4309 internal_a
.o_cputype
= 3;
4311 internal_a
.o_cputype
= 1;
4317 internal_a
.o_maxstack
= xcoff_data (abfd
)->maxstack
;
4318 internal_a
.o_maxdata
= xcoff_data (abfd
)->maxdata
;
4324 /* After object contents are finalized so we can compute a reasonable hash,
4325 but before header is written so we can update it to point to debug directory. */
4326 struct pe_tdata
*pe
= pe_data (abfd
);
4328 if (pe
->build_id
.after_write_object_contents
!= NULL
)
4329 (*pe
->build_id
.after_write_object_contents
) (abfd
);
4333 /* Now write header. */
4334 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
) != 0)
4339 bfd_size_type amount
= bfd_coff_filhsz (abfd
);
4341 buff
= (char *) bfd_malloc (amount
);
4345 bfd_coff_swap_filehdr_out (abfd
, & internal_f
, buff
);
4346 amount
= bfd_bwrite (buff
, amount
, abfd
);
4350 if (amount
!= bfd_coff_filhsz (abfd
))
4354 if (abfd
->flags
& EXEC_P
)
4356 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
4357 include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */
4359 bfd_size_type amount
= bfd_coff_aoutsz (abfd
);
4361 buff
= (char *) bfd_malloc (amount
);
4365 coff_swap_aouthdr_out (abfd
, & internal_a
, buff
);
4366 amount
= bfd_bwrite (buff
, amount
, abfd
);
4370 if (amount
!= bfd_coff_aoutsz (abfd
))
4373 #ifdef COFF_IMAGE_WITH_PE
4374 if (! coff_apply_checksum (abfd
))
4384 /* XCOFF seems to always write at least a small a.out header. */
4385 coff_swap_aouthdr_out (abfd
, & internal_a
, & buff
);
4386 if (xcoff_data (abfd
)->full_aouthdr
)
4387 size
= bfd_coff_aoutsz (abfd
);
4389 size
= SMALL_AOUTSZ
;
4390 if (bfd_bwrite (& buff
, (bfd_size_type
) size
, abfd
) != size
)
4399 coff_set_section_contents (bfd
* abfd
,
4401 const void * location
,
4403 bfd_size_type count
)
4405 if (! abfd
->output_has_begun
) /* Set by bfd.c handler. */
4407 if (! coff_compute_section_file_positions (abfd
))
4411 #if defined(_LIB) && !defined(TARG_AUX)
4412 /* The physical address field of a .lib section is used to hold the
4413 number of shared libraries in the section. This code counts the
4414 number of sections being written, and increments the lma field
4417 I have found no documentation on the contents of this section.
4418 Experimentation indicates that the section contains zero or more
4419 records, each of which has the following structure:
4421 - a (four byte) word holding the length of this record, in words,
4422 - a word that always seems to be set to "2",
4423 - the path to a shared library, null-terminated and then padded
4424 to a whole word boundary.
4426 bfd_assert calls have been added to alert if an attempt is made
4427 to write a section which doesn't follow these assumptions. The
4428 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
4429 <robertl@arnet.com> (Thanks!).
4431 Gvran Uddeborg <gvran@uddeborg.pp.se>. */
4432 if (strcmp (section
->name
, _LIB
) == 0)
4434 bfd_byte
*rec
, *recend
;
4436 rec
= (bfd_byte
*) location
;
4437 recend
= rec
+ count
;
4438 while (rec
< recend
)
4441 rec
+= bfd_get_32 (abfd
, rec
) * 4;
4444 BFD_ASSERT (rec
== recend
);
4448 /* Don't write out bss sections - one way to do this is to
4449 see if the filepos has not been set. */
4450 if (section
->filepos
== 0)
4453 if (bfd_seek (abfd
, section
->filepos
+ offset
, SEEK_SET
) != 0)
4459 return bfd_bwrite (location
, count
, abfd
) == count
;
4463 buy_and_read (bfd
*abfd
, file_ptr where
, bfd_size_type size
)
4465 void * area
= bfd_alloc (abfd
, size
);
4469 if (bfd_seek (abfd
, where
, SEEK_SET
) != 0
4470 || bfd_bread (area
, size
, abfd
) != size
)
4479 Creating the linenumber table is done by reading in the entire
4480 coff linenumber table, and creating another table for internal use.
4482 A coff linenumber table is structured so that each function
4483 is marked as having a line number of 0. Each line within the
4484 function is an offset from the first line in the function. The
4485 base of the line number information for the table is stored in
4486 the symbol associated with the function.
4488 Note: The PE format uses line number 0 for a flag indicating a
4491 The information is copied from the external to the internal
4492 table, and each symbol which marks a function is marked by
4495 How does this work ?
4499 coff_sort_func_alent (const void * arg1
, const void * arg2
)
4501 const alent
*al1
= *(const alent
**) arg1
;
4502 const alent
*al2
= *(const alent
**) arg2
;
4503 const coff_symbol_type
*s1
= (const coff_symbol_type
*) (al1
->u
.sym
);
4504 const coff_symbol_type
*s2
= (const coff_symbol_type
*) (al2
->u
.sym
);
4506 if (s1
== NULL
|| s2
== NULL
)
4508 if (s1
->symbol
.value
< s2
->symbol
.value
)
4510 else if (s1
->symbol
.value
> s2
->symbol
.value
)
4517 coff_slurp_line_table (bfd
*abfd
, asection
*asect
)
4519 LINENO
*native_lineno
;
4520 alent
*lineno_cache
;
4522 unsigned int counter
;
4524 bfd_vma prev_offset
= 0;
4526 unsigned int nbr_func
;
4529 BFD_ASSERT (asect
->lineno
== NULL
);
4531 amt
= ((bfd_size_type
) asect
->lineno_count
+ 1) * sizeof (alent
);
4532 if (amt
> (bfd_size_type
) bfd_get_size (abfd
))
4534 lineno_cache
= (alent
*) bfd_zalloc (abfd
, amt
);
4535 if (lineno_cache
== NULL
)
4538 amt
= (bfd_size_type
) bfd_coff_linesz (abfd
) * asect
->lineno_count
;
4539 native_lineno
= (LINENO
*) buy_and_read (abfd
, asect
->line_filepos
, amt
);
4540 if (native_lineno
== NULL
)
4542 (*_bfd_error_handler
)
4543 (_("%B: warning: line number table read failed"), abfd
);
4544 bfd_release (abfd
, lineno_cache
);
4548 cache_ptr
= lineno_cache
;
4549 asect
->lineno
= lineno_cache
;
4550 src
= native_lineno
;
4553 for (counter
= 0; counter
< asect
->lineno_count
; counter
++)
4555 struct internal_lineno dst
;
4557 bfd_coff_swap_lineno_in (abfd
, src
, &dst
);
4558 cache_ptr
->line_number
= dst
.l_lnno
;
4560 if (cache_ptr
->line_number
== 0)
4562 bfd_signed_vma symndx
;
4563 coff_symbol_type
*sym
;
4566 symndx
= dst
.l_addr
.l_symndx
;
4568 || (bfd_vma
) symndx
>= obj_raw_syment_count (abfd
))
4570 (*_bfd_error_handler
)
4571 (_("%B: warning: illegal symbol index 0x%lx in line number entry %d"),
4572 abfd
, (long) symndx
, counter
);
4576 /* FIXME: We should not be casting between ints and
4577 pointers like this. */
4578 sym
= ((coff_symbol_type
*)
4579 ((symndx
+ obj_raw_syments (abfd
))
4580 ->u
.syment
._n
._n_n
._n_zeroes
));
4581 cache_ptr
->u
.sym
= (asymbol
*) sym
;
4585 if (sym
->lineno
!= NULL
)
4586 (*_bfd_error_handler
)
4587 (_("%B: warning: duplicate line number information for `%s'"),
4588 abfd
, bfd_asymbol_name (&sym
->symbol
));
4590 sym
->lineno
= cache_ptr
;
4591 if (sym
->symbol
.value
< prev_offset
)
4593 prev_offset
= sym
->symbol
.value
;
4596 cache_ptr
->u
.offset
= dst
.l_addr
.l_paddr
4597 - bfd_section_vma (abfd
, asect
);
4602 cache_ptr
->line_number
= 0;
4603 bfd_release (abfd
, native_lineno
);
4605 /* On some systems (eg AIX5.3) the lineno table may not be sorted. */
4608 /* Sort the table. */
4610 alent
*n_lineno_cache
;
4612 /* Create a table of functions. */
4613 func_table
= (alent
**) bfd_alloc (abfd
, nbr_func
* sizeof (alent
*));
4614 if (func_table
!= NULL
)
4616 alent
**p
= func_table
;
4619 for (i
= 0; i
< counter
; i
++)
4620 if (lineno_cache
[i
].line_number
== 0)
4621 *p
++ = &lineno_cache
[i
];
4623 /* Sort by functions. */
4624 qsort (func_table
, nbr_func
, sizeof (alent
*), coff_sort_func_alent
);
4626 /* Create the new sorted table. */
4627 amt
= ((bfd_size_type
) asect
->lineno_count
+ 1) * sizeof (alent
);
4628 n_lineno_cache
= (alent
*) bfd_zalloc (abfd
, amt
);
4629 if (n_lineno_cache
!= NULL
)
4631 alent
*n_cache_ptr
= n_lineno_cache
;
4633 for (i
= 0; i
< nbr_func
; i
++)
4635 coff_symbol_type
*sym
;
4636 alent
*old_ptr
= func_table
[i
];
4638 /* Copy the function entry and update it. */
4639 *n_cache_ptr
= *old_ptr
;
4640 sym
= (coff_symbol_type
*) n_cache_ptr
->u
.sym
;
4642 sym
->lineno
= n_cache_ptr
;
4646 /* Copy the line number entries. */
4647 while (old_ptr
->line_number
!= 0)
4648 *n_cache_ptr
++ = *old_ptr
++;
4650 n_cache_ptr
->line_number
= 0;
4651 memcpy (lineno_cache
, n_lineno_cache
, amt
);
4653 /* PR binutils/17512: Do *not* free the func table
4654 and new lineno cache - they are now being used. */
4661 /* Slurp in the symbol table, converting it to generic form. Note
4662 that if coff_relocate_section is defined, the linker will read
4663 symbols via coff_link_add_symbols, rather than via this routine. */
4666 coff_slurp_symbol_table (bfd
* abfd
)
4668 combined_entry_type
*native_symbols
;
4669 coff_symbol_type
*cached_area
;
4670 unsigned int *table_ptr
;
4672 unsigned int number_of_symbols
= 0;
4674 if (obj_symbols (abfd
))
4677 /* Read in the symbol table. */
4678 if ((native_symbols
= coff_get_normalized_symtab (abfd
)) == NULL
)
4681 /* Allocate enough room for all the symbols in cached form. */
4682 amt
= obj_raw_syment_count (abfd
);
4683 amt
*= sizeof (coff_symbol_type
);
4684 cached_area
= (coff_symbol_type
*) bfd_alloc (abfd
, amt
);
4685 if (cached_area
== NULL
)
4688 amt
= obj_raw_syment_count (abfd
);
4689 amt
*= sizeof (unsigned int);
4690 table_ptr
= (unsigned int *) bfd_alloc (abfd
, amt
);
4692 if (table_ptr
== NULL
)
4696 coff_symbol_type
*dst
= cached_area
;
4697 unsigned int last_native_index
= obj_raw_syment_count (abfd
);
4698 unsigned int this_index
= 0;
4700 while (this_index
< last_native_index
)
4702 combined_entry_type
*src
= native_symbols
+ this_index
;
4703 table_ptr
[this_index
] = number_of_symbols
;
4704 dst
->symbol
.the_bfd
= abfd
;
4706 dst
->symbol
.name
= (char *) (src
->u
.syment
._n
._n_n
._n_offset
);
4707 /* We use the native name field to point to the cached field. */
4708 src
->u
.syment
._n
._n_n
._n_zeroes
= (bfd_hostptr_t
) dst
;
4709 dst
->symbol
.section
= coff_section_from_bfd_index (abfd
,
4710 src
->u
.syment
.n_scnum
);
4711 dst
->symbol
.flags
= 0;
4712 dst
->done_lineno
= FALSE
;
4714 switch (src
->u
.syment
.n_sclass
)
4718 /* Fall through to next case. */
4725 case C_THUMBEXTFUNC
:
4731 case C_SYSTEM
: /* System Wide variable. */
4734 /* In PE, 0x68 (104) denotes a section symbol. */
4736 /* In PE, 0x69 (105) denotes a weak external symbol. */
4739 switch (coff_classify_symbol (abfd
, &src
->u
.syment
))
4741 case COFF_SYMBOL_GLOBAL
:
4742 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
4743 #if defined COFF_WITH_PE
4744 /* PE sets the symbol to a value relative to the
4745 start of the section. */
4746 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4748 dst
->symbol
.value
= (src
->u
.syment
.n_value
4749 - dst
->symbol
.section
->vma
);
4751 if (ISFCN ((src
->u
.syment
.n_type
)))
4752 /* A function ext does not go at the end of a
4754 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4757 case COFF_SYMBOL_COMMON
:
4758 dst
->symbol
.section
= bfd_com_section_ptr
;
4759 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4762 case COFF_SYMBOL_UNDEFINED
:
4763 dst
->symbol
.section
= bfd_und_section_ptr
;
4764 dst
->symbol
.value
= 0;
4767 case COFF_SYMBOL_PE_SECTION
:
4768 dst
->symbol
.flags
|= BSF_EXPORT
| BSF_SECTION_SYM
;
4769 dst
->symbol
.value
= 0;
4772 case COFF_SYMBOL_LOCAL
:
4773 dst
->symbol
.flags
= BSF_LOCAL
;
4774 #if defined COFF_WITH_PE
4775 /* PE sets the symbol to a value relative to the
4776 start of the section. */
4777 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4779 dst
->symbol
.value
= (src
->u
.syment
.n_value
4780 - dst
->symbol
.section
->vma
);
4782 if (ISFCN ((src
->u
.syment
.n_type
)))
4783 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4788 /* A symbol with a csect entry should not go at the end. */
4789 if (src
->u
.syment
.n_numaux
> 0)
4790 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
4794 if (src
->u
.syment
.n_sclass
== C_NT_WEAK
)
4795 dst
->symbol
.flags
|= BSF_WEAK
;
4797 if (src
->u
.syment
.n_sclass
== C_SECTION
4798 && src
->u
.syment
.n_scnum
> 0)
4799 dst
->symbol
.flags
= BSF_LOCAL
;
4801 if (src
->u
.syment
.n_sclass
== C_WEAKEXT
)
4802 dst
->symbol
.flags
|= BSF_WEAK
;
4806 case C_STAT
: /* Static. */
4808 case C_LEAFSTAT
: /* Static leaf procedure. */
4811 case C_THUMBSTAT
: /* Thumb static. */
4812 case C_THUMBLABEL
: /* Thumb label. */
4813 case C_THUMBSTATFUNC
:/* Thumb static function. */
4816 case C_DWARF
: /* A label in a dwarf section. */
4817 case C_INFO
: /* A label in a comment section. */
4819 case C_LABEL
: /* Label. */
4820 if (src
->u
.syment
.n_scnum
== N_DEBUG
)
4821 dst
->symbol
.flags
= BSF_DEBUGGING
;
4823 dst
->symbol
.flags
= BSF_LOCAL
;
4825 /* Base the value as an index from the base of the
4826 section, if there is one. */
4827 if (dst
->symbol
.section
)
4829 #if defined COFF_WITH_PE
4830 /* PE sets the symbol to a value relative to the
4831 start of the section. */
4832 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4834 dst
->symbol
.value
= (src
->u
.syment
.n_value
4835 - dst
->symbol
.section
->vma
);
4839 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4842 case C_MOS
: /* Member of structure. */
4843 case C_EOS
: /* End of structure. */
4844 case C_REGPARM
: /* Register parameter. */
4845 case C_REG
: /* register variable. */
4846 /* C_AUTOARG conflicts with TI COFF C_UEXT. */
4847 #if !defined (TIC80COFF) && !defined (TICOFF)
4849 case C_AUTOARG
: /* 960-specific storage class. */
4852 case C_TPDEF
: /* Type definition. */
4854 case C_AUTO
: /* Automatic variable. */
4855 case C_FIELD
: /* Bit field. */
4856 case C_ENTAG
: /* Enumeration tag. */
4857 case C_MOE
: /* Member of enumeration. */
4858 case C_MOU
: /* Member of union. */
4859 case C_UNTAG
: /* Union tag. */
4860 dst
->symbol
.flags
= BSF_DEBUGGING
;
4861 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4864 case C_FILE
: /* File name. */
4865 case C_STRTAG
: /* Structure tag. */
4882 dst
->symbol
.flags
= BSF_DEBUGGING
;
4883 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4887 case C_BINCL
: /* Beginning of include file. */
4888 case C_EINCL
: /* Ending of include file. */
4889 /* The value is actually a pointer into the line numbers
4890 of the file. We locate the line number entry, and
4891 set the section to the section which contains it, and
4892 the value to the index in that section. */
4896 dst
->symbol
.flags
= BSF_DEBUGGING
;
4897 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
4898 if (sec
->line_filepos
<= (file_ptr
) src
->u
.syment
.n_value
4899 && ((file_ptr
) (sec
->line_filepos
4900 + sec
->lineno_count
* bfd_coff_linesz (abfd
))
4901 > (file_ptr
) src
->u
.syment
.n_value
))
4904 dst
->symbol
.value
= 0;
4907 dst
->symbol
.section
= sec
;
4908 dst
->symbol
.value
= ((src
->u
.syment
.n_value
4909 - sec
->line_filepos
)
4910 / bfd_coff_linesz (abfd
));
4917 dst
->symbol
.flags
= BSF_DEBUGGING
;
4919 /* The value is actually a symbol index. Save a pointer
4920 to the symbol instead of the index. FIXME: This
4921 should use a union. */
4922 src
->u
.syment
.n_value
=
4923 (long) (intptr_t) (native_symbols
+ src
->u
.syment
.n_value
);
4924 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4929 case C_BLOCK
: /* ".bb" or ".eb". */
4930 case C_FCN
: /* ".bf" or ".ef" (or PE ".lf"). */
4931 case C_EFCN
: /* Physical end of function. */
4932 #if defined COFF_WITH_PE
4933 /* PE sets the symbol to a value relative to the start
4935 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4936 if (strcmp (dst
->symbol
.name
, ".bf") != 0)
4938 /* PE uses funny values for .ef and .lf; don't
4940 dst
->symbol
.flags
= BSF_DEBUGGING
;
4943 dst
->symbol
.flags
= BSF_DEBUGGING
| BSF_DEBUGGING_RELOC
;
4945 /* Base the value as an index from the base of the
4947 dst
->symbol
.flags
= BSF_LOCAL
;
4948 dst
->symbol
.value
= (src
->u
.syment
.n_value
4949 - dst
->symbol
.section
->vma
);
4953 case C_STATLAB
: /* Static load time label. */
4954 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4955 dst
->symbol
.flags
= BSF_GLOBAL
;
4959 /* PE DLLs sometimes have zeroed out symbols for some
4960 reason. Just ignore them without a warning. */
4961 if (src
->u
.syment
.n_type
== 0
4962 && src
->u
.syment
.n_value
== 0
4963 && src
->u
.syment
.n_scnum
== 0)
4966 /* XCOFF specific: deleted entry. */
4967 if (src
->u
.syment
.n_value
== C_NULL_VALUE
)
4971 case C_EXTDEF
: /* External definition. */
4972 case C_ULABEL
: /* Undefined label. */
4973 case C_USTATIC
: /* Undefined static. */
4974 #ifndef COFF_WITH_PE
4975 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4976 class to represent a section symbol. */
4977 case C_LINE
: /* line # reformatted as symbol table entry. */
4978 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4979 case C_ALIAS
: /* Duplicate tag. */
4981 /* New storage classes for TI COFF. */
4982 #if defined(TIC80COFF) || defined(TICOFF)
4983 case C_UEXT
: /* Tentative external definition. */
4985 case C_EXTLAB
: /* External load time label. */
4986 case C_HIDDEN
: /* Ext symbol in dmert public lib. */
4988 (*_bfd_error_handler
)
4989 (_("%B: Unrecognized storage class %d for %s symbol `%s'"),
4990 abfd
, src
->u
.syment
.n_sclass
,
4991 dst
->symbol
.section
->name
, dst
->symbol
.name
);
4992 dst
->symbol
.flags
= BSF_DEBUGGING
;
4993 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4999 dst
->symbol
.udata
.i
= 0;
5001 this_index
+= (src
->u
.syment
.n_numaux
) + 1;
5003 number_of_symbols
++;
5007 obj_symbols (abfd
) = cached_area
;
5008 obj_raw_syments (abfd
) = native_symbols
;
5010 bfd_get_symcount (abfd
) = number_of_symbols
;
5011 obj_convert (abfd
) = table_ptr
;
5012 /* Slurp the line tables for each section too. */
5019 coff_slurp_line_table (abfd
, p
);
5027 /* Classify a COFF symbol. A couple of targets have globally visible
5028 symbols which are not class C_EXT, and this handles those. It also
5029 recognizes some special PE cases. */
5031 static enum coff_symbol_classification
5032 coff_classify_symbol (bfd
*abfd
,
5033 struct internal_syment
*syment
)
5035 /* FIXME: This partially duplicates the switch in
5036 coff_slurp_symbol_table. */
5037 switch (syment
->n_sclass
)
5046 case C_THUMBEXTFUNC
:
5054 if (syment
->n_scnum
== 0)
5056 if (syment
->n_value
== 0)
5057 return COFF_SYMBOL_UNDEFINED
;
5059 return COFF_SYMBOL_COMMON
;
5061 return COFF_SYMBOL_GLOBAL
;
5068 if (syment
->n_sclass
== C_STAT
)
5070 if (syment
->n_scnum
== 0)
5071 /* The Microsoft compiler sometimes generates these if a
5072 small static function is inlined every time it is used.
5073 The function is discarded, but the symbol table entry
5075 return COFF_SYMBOL_LOCAL
;
5077 #ifdef STRICT_PE_FORMAT
5078 /* This is correct for Microsoft generated objects, but it
5079 breaks gas generated objects. */
5080 if (syment
->n_value
== 0)
5083 char buf
[SYMNMLEN
+ 1];
5085 sec
= coff_section_from_bfd_index (abfd
, syment
->n_scnum
);
5087 && (strcmp (bfd_get_section_name (abfd
, sec
),
5088 _bfd_coff_internal_syment_name (abfd
, syment
, buf
))
5090 return COFF_SYMBOL_PE_SECTION
;
5094 return COFF_SYMBOL_LOCAL
;
5097 if (syment
->n_sclass
== C_SECTION
)
5099 /* In some cases in a DLL generated by the Microsoft linker, the
5100 n_value field will contain garbage. FIXME: This should
5101 probably be handled by the swapping function instead. */
5102 syment
->n_value
= 0;
5103 if (syment
->n_scnum
== 0)
5104 return COFF_SYMBOL_UNDEFINED
;
5105 return COFF_SYMBOL_PE_SECTION
;
5107 #endif /* COFF_WITH_PE */
5109 /* If it is not a global symbol, we presume it is a local symbol. */
5110 if (syment
->n_scnum
== 0)
5112 char buf
[SYMNMLEN
+ 1];
5114 (*_bfd_error_handler
)
5115 (_("warning: %B: local symbol `%s' has no section"),
5116 abfd
, _bfd_coff_internal_syment_name (abfd
, syment
, buf
));
5119 return COFF_SYMBOL_LOCAL
;
5126 Coff relocations are easily transformed into the internal BFD form
5129 Reading a coff relocation table is done in the following stages:
5131 o Read the entire coff relocation table into memory.
5133 o Process each relocation in turn; first swap it from the
5134 external to the internal form.
5136 o Turn the symbol referenced in the relocation's symbol index
5137 into a pointer into the canonical symbol table.
5138 This table is the same as the one returned by a call to
5139 @code{bfd_canonicalize_symtab}. The back end will call that
5140 routine and save the result if a canonicalization hasn't been done.
5142 o The reloc index is turned into a pointer to a howto
5143 structure, in a back end specific way. For instance, the 386
5144 and 960 use the @code{r_type} to directly produce an index
5145 into a howto table vector; the 88k subtracts a number from the
5146 @code{r_type} field and creates an addend field.
5150 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
5152 coff_symbol_type *coffsym = NULL; \
5154 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
5155 coffsym = (obj_symbols (abfd) \
5156 + (cache_ptr->sym_ptr_ptr - symbols)); \
5158 coffsym = coff_symbol_from (abfd, ptr); \
5159 if (coffsym != NULL \
5160 && coffsym->native->u.syment.n_scnum == 0) \
5161 cache_ptr->addend = 0; \
5162 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
5163 && ptr->section != NULL) \
5164 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
5166 cache_ptr->addend = 0; \
5171 coff_slurp_reloc_table (bfd
* abfd
, sec_ptr asect
, asymbol
** symbols
)
5173 RELOC
*native_relocs
;
5174 arelent
*reloc_cache
;
5179 if (asect
->relocation
)
5181 if (asect
->reloc_count
== 0)
5183 if (asect
->flags
& SEC_CONSTRUCTOR
)
5185 if (!coff_slurp_symbol_table (abfd
))
5188 amt
= (bfd_size_type
) bfd_coff_relsz (abfd
) * asect
->reloc_count
;
5189 native_relocs
= (RELOC
*) buy_and_read (abfd
, asect
->rel_filepos
, amt
);
5190 amt
= (bfd_size_type
) asect
->reloc_count
* sizeof (arelent
);
5191 reloc_cache
= (arelent
*) bfd_alloc (abfd
, amt
);
5193 if (reloc_cache
== NULL
|| native_relocs
== NULL
)
5196 for (idx
= 0; idx
< asect
->reloc_count
; idx
++)
5198 struct internal_reloc dst
;
5199 struct external_reloc
*src
;
5200 #ifndef RELOC_PROCESSING
5204 cache_ptr
= reloc_cache
+ idx
;
5205 src
= native_relocs
+ idx
;
5208 coff_swap_reloc_in (abfd
, src
, &dst
);
5210 #ifdef RELOC_PROCESSING
5211 RELOC_PROCESSING (cache_ptr
, &dst
, symbols
, abfd
, asect
);
5213 cache_ptr
->address
= dst
.r_vaddr
;
5215 if (dst
.r_symndx
!= -1)
5217 if (dst
.r_symndx
< 0 || dst
.r_symndx
>= obj_conv_table_size (abfd
))
5219 (*_bfd_error_handler
)
5220 (_("%B: warning: illegal symbol index %ld in relocs"),
5221 abfd
, (long) dst
.r_symndx
);
5222 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
5227 cache_ptr
->sym_ptr_ptr
= (symbols
5228 + obj_convert (abfd
)[dst
.r_symndx
]);
5229 ptr
= *(cache_ptr
->sym_ptr_ptr
);
5234 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
5238 /* The symbols definitions that we have read in have been
5239 relocated as if their sections started at 0. But the offsets
5240 refering to the symbols in the raw data have not been
5241 modified, so we have to have a negative addend to compensate.
5243 Note that symbols which used to be common must be left alone. */
5245 /* Calculate any reloc addend by looking at the symbol. */
5246 CALC_ADDEND (abfd
, ptr
, dst
, cache_ptr
);
5249 cache_ptr
->address
-= asect
->vma
;
5250 /* !! cache_ptr->section = NULL;*/
5252 /* Fill in the cache_ptr->howto field from dst.r_type. */
5253 RTYPE2HOWTO (cache_ptr
, &dst
);
5254 #endif /* RELOC_PROCESSING */
5256 if (cache_ptr
->howto
== NULL
)
5258 (*_bfd_error_handler
)
5259 (_("%B: illegal relocation type %d at address 0x%lx"),
5260 abfd
, dst
.r_type
, (long) dst
.r_vaddr
);
5261 bfd_set_error (bfd_error_bad_value
);
5266 asect
->relocation
= reloc_cache
;
5270 #ifndef coff_rtype_to_howto
5273 /* Get the howto structure for a reloc. This is only used if the file
5274 including this one defines coff_relocate_section to be
5275 _bfd_coff_generic_relocate_section, so it is OK if it does not
5276 always work. It is the responsibility of the including file to
5277 make sure it is reasonable if it is needed. */
5279 static reloc_howto_type
*
5280 coff_rtype_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
,
5281 asection
*sec ATTRIBUTE_UNUSED
,
5282 struct internal_reloc
*rel
,
5283 struct coff_link_hash_entry
*h ATTRIBUTE_UNUSED
,
5284 struct internal_syment
*sym ATTRIBUTE_UNUSED
,
5285 bfd_vma
*addendp ATTRIBUTE_UNUSED
)
5289 genrel
.howto
= NULL
;
5290 RTYPE2HOWTO (&genrel
, rel
);
5291 return genrel
.howto
;
5294 #else /* ! defined (RTYPE2HOWTO) */
5296 #define coff_rtype_to_howto NULL
5298 #endif /* ! defined (RTYPE2HOWTO) */
5299 #endif /* ! defined (coff_rtype_to_howto) */
5301 /* This is stupid. This function should be a boolean predicate. */
5304 coff_canonicalize_reloc (bfd
* abfd
,
5309 arelent
*tblptr
= section
->relocation
;
5310 unsigned int count
= 0;
5312 if (section
->flags
& SEC_CONSTRUCTOR
)
5314 /* This section has relocs made up by us, they are not in the
5315 file, so take them out of their chain and place them into
5316 the data area provided. */
5317 arelent_chain
*chain
= section
->constructor_chain
;
5319 for (count
= 0; count
< section
->reloc_count
; count
++)
5321 *relptr
++ = &chain
->relent
;
5322 chain
= chain
->next
;
5327 if (! coff_slurp_reloc_table (abfd
, section
, symbols
))
5330 tblptr
= section
->relocation
;
5332 for (; count
++ < section
->reloc_count
;)
5333 *relptr
++ = tblptr
++;
5336 return section
->reloc_count
;
5339 #ifndef coff_reloc16_estimate
5340 #define coff_reloc16_estimate dummy_reloc16_estimate
5343 dummy_reloc16_estimate (bfd
*abfd ATTRIBUTE_UNUSED
,
5344 asection
*input_section ATTRIBUTE_UNUSED
,
5345 arelent
*reloc ATTRIBUTE_UNUSED
,
5346 unsigned int shrink ATTRIBUTE_UNUSED
,
5347 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
)
5355 #ifndef coff_reloc16_extra_cases
5357 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
5359 /* This works even if abort is not declared in any header file. */
5362 dummy_reloc16_extra_cases (bfd
*abfd ATTRIBUTE_UNUSED
,
5363 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
,
5364 struct bfd_link_order
*link_order ATTRIBUTE_UNUSED
,
5365 arelent
*reloc ATTRIBUTE_UNUSED
,
5366 bfd_byte
*data ATTRIBUTE_UNUSED
,
5367 unsigned int *src_ptr ATTRIBUTE_UNUSED
,
5368 unsigned int *dst_ptr ATTRIBUTE_UNUSED
)
5374 /* If coff_relocate_section is defined, we can use the optimized COFF
5375 backend linker. Otherwise we must continue to use the old linker. */
5377 #ifdef coff_relocate_section
5379 #ifndef coff_bfd_link_hash_table_create
5380 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
5382 #ifndef coff_bfd_link_add_symbols
5383 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
5385 #ifndef coff_bfd_final_link
5386 #define coff_bfd_final_link _bfd_coff_final_link
5389 #else /* ! defined (coff_relocate_section) */
5391 #define coff_relocate_section NULL
5392 #ifndef coff_bfd_link_hash_table_create
5393 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
5395 #ifndef coff_bfd_link_add_symbols
5396 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
5398 #define coff_bfd_final_link _bfd_generic_final_link
5400 #endif /* ! defined (coff_relocate_section) */
5402 #define coff_bfd_link_just_syms _bfd_generic_link_just_syms
5403 #define coff_bfd_copy_link_hash_symbol_type \
5404 _bfd_generic_copy_link_hash_symbol_type
5405 #define coff_bfd_link_split_section _bfd_generic_link_split_section
5407 #ifndef coff_start_final_link
5408 #define coff_start_final_link NULL
5411 #ifndef coff_adjust_symndx
5412 #define coff_adjust_symndx NULL
5415 #ifndef coff_link_add_one_symbol
5416 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
5419 #ifndef coff_link_output_has_begun
5422 coff_link_output_has_begun (bfd
* abfd
,
5423 struct coff_final_link_info
* info ATTRIBUTE_UNUSED
)
5425 return abfd
->output_has_begun
;
5429 #ifndef coff_final_link_postscript
5432 coff_final_link_postscript (bfd
* abfd ATTRIBUTE_UNUSED
,
5433 struct coff_final_link_info
* pfinfo ATTRIBUTE_UNUSED
)
5439 #ifndef coff_SWAP_aux_in
5440 #define coff_SWAP_aux_in coff_swap_aux_in
5442 #ifndef coff_SWAP_sym_in
5443 #define coff_SWAP_sym_in coff_swap_sym_in
5445 #ifndef coff_SWAP_lineno_in
5446 #define coff_SWAP_lineno_in coff_swap_lineno_in
5448 #ifndef coff_SWAP_aux_out
5449 #define coff_SWAP_aux_out coff_swap_aux_out
5451 #ifndef coff_SWAP_sym_out
5452 #define coff_SWAP_sym_out coff_swap_sym_out
5454 #ifndef coff_SWAP_lineno_out
5455 #define coff_SWAP_lineno_out coff_swap_lineno_out
5457 #ifndef coff_SWAP_reloc_out
5458 #define coff_SWAP_reloc_out coff_swap_reloc_out
5460 #ifndef coff_SWAP_filehdr_out
5461 #define coff_SWAP_filehdr_out coff_swap_filehdr_out
5463 #ifndef coff_SWAP_aouthdr_out
5464 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
5466 #ifndef coff_SWAP_scnhdr_out
5467 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
5469 #ifndef coff_SWAP_reloc_in
5470 #define coff_SWAP_reloc_in coff_swap_reloc_in
5472 #ifndef coff_SWAP_filehdr_in
5473 #define coff_SWAP_filehdr_in coff_swap_filehdr_in
5475 #ifndef coff_SWAP_aouthdr_in
5476 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
5478 #ifndef coff_SWAP_scnhdr_in
5479 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
5482 static bfd_coff_backend_data bfd_coff_std_swap_table ATTRIBUTE_UNUSED
=
5484 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5485 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5486 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5487 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5488 coff_SWAP_scnhdr_out
,
5489 FILHSZ
, AOUTSZ
, SCNHSZ
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
5490 #ifdef COFF_LONG_FILENAMES
5495 COFF_DEFAULT_LONG_SECTION_NAMES
,
5496 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5497 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5502 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5508 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5509 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
5510 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5511 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5512 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5513 coff_classify_symbol
, coff_compute_section_file_positions
,
5514 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5515 coff_adjust_symndx
, coff_link_add_one_symbol
,
5516 coff_link_output_has_begun
, coff_final_link_postscript
,
5521 /* COFF0 differs in file/section header size and relocation entry size. */
5523 static bfd_coff_backend_data ticoff0_swap_table
=
5525 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5526 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5527 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5528 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5529 coff_SWAP_scnhdr_out
,
5530 FILHSZ_V0
, AOUTSZ
, SCNHSZ_V01
, SYMESZ
, AUXESZ
, RELSZ_V0
, LINESZ
, FILNMLEN
,
5531 #ifdef COFF_LONG_FILENAMES
5536 COFF_DEFAULT_LONG_SECTION_NAMES
,
5537 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5538 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5543 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5549 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5550 coff_SWAP_reloc_in
, ticoff0_bad_format_hook
, coff_set_arch_mach_hook
,
5551 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5552 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5553 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5554 coff_classify_symbol
, coff_compute_section_file_positions
,
5555 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5556 coff_adjust_symndx
, coff_link_add_one_symbol
,
5557 coff_link_output_has_begun
, coff_final_link_postscript
,
5563 /* COFF1 differs in section header size. */
5565 static bfd_coff_backend_data ticoff1_swap_table
=
5567 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5568 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5569 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5570 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5571 coff_SWAP_scnhdr_out
,
5572 FILHSZ
, AOUTSZ
, SCNHSZ_V01
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
5573 #ifdef COFF_LONG_FILENAMES
5578 COFF_DEFAULT_LONG_SECTION_NAMES
,
5579 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5580 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5585 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5591 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5592 coff_SWAP_reloc_in
, ticoff1_bad_format_hook
, coff_set_arch_mach_hook
,
5593 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5594 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5595 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5596 coff_classify_symbol
, coff_compute_section_file_positions
,
5597 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5598 coff_adjust_symndx
, coff_link_add_one_symbol
,
5599 coff_link_output_has_begun
, coff_final_link_postscript
,
5600 bfd_pe_print_pdata
/* huh */
5604 #ifdef COFF_WITH_PE_BIGOBJ
5605 /* The UUID for bigobj files. */
5607 static const char header_bigobj_classid
[16] =
5609 0xC7, 0xA1, 0xBA, 0xD1,
5613 0xFA, 0xF6, 0x6A, 0xA4, 0xDC, 0xB8
5616 /* Swap routines. */
5619 coff_bigobj_swap_filehdr_in (bfd
* abfd
, void * src
, void * dst
)
5621 struct external_ANON_OBJECT_HEADER_BIGOBJ
*filehdr_src
=
5622 (struct external_ANON_OBJECT_HEADER_BIGOBJ
*) src
;
5623 struct internal_filehdr
*filehdr_dst
= (struct internal_filehdr
*) dst
;
5625 filehdr_dst
->f_magic
= H_GET_16 (abfd
, filehdr_src
->Machine
);
5626 filehdr_dst
->f_nscns
= H_GET_32 (abfd
, filehdr_src
->NumberOfSections
);
5627 filehdr_dst
->f_timdat
= H_GET_32 (abfd
, filehdr_src
->TimeDateStamp
);
5628 filehdr_dst
->f_symptr
=
5629 GET_FILEHDR_SYMPTR (abfd
, filehdr_src
->PointerToSymbolTable
);
5630 filehdr_dst
->f_nsyms
= H_GET_32 (abfd
, filehdr_src
->NumberOfSymbols
);
5631 filehdr_dst
->f_opthdr
= 0;
5632 filehdr_dst
->f_flags
= 0;
5634 /* Check other magic numbers. */
5635 if (H_GET_16 (abfd
, filehdr_src
->Sig1
) != IMAGE_FILE_MACHINE_UNKNOWN
5636 || H_GET_16 (abfd
, filehdr_src
->Sig2
) != 0xffff
5637 || H_GET_16 (abfd
, filehdr_src
->Version
) != 2
5638 || memcmp (filehdr_src
->ClassID
, header_bigobj_classid
, 16) != 0)
5639 filehdr_dst
->f_opthdr
= 0xffff;
5641 /* Note that CLR metadata are ignored. */
5645 coff_bigobj_swap_filehdr_out (bfd
*abfd
, void * in
, void * out
)
5647 struct internal_filehdr
*filehdr_in
= (struct internal_filehdr
*) in
;
5648 struct external_ANON_OBJECT_HEADER_BIGOBJ
*filehdr_out
=
5649 (struct external_ANON_OBJECT_HEADER_BIGOBJ
*) out
;
5651 memset (filehdr_out
, 0, sizeof (*filehdr_out
));
5653 H_PUT_16 (abfd
, IMAGE_FILE_MACHINE_UNKNOWN
, filehdr_out
->Sig1
);
5654 H_PUT_16 (abfd
, 0xffff, filehdr_out
->Sig2
);
5655 H_PUT_16 (abfd
, 2, filehdr_out
->Version
);
5656 memcpy (filehdr_out
->ClassID
, header_bigobj_classid
, 16);
5657 H_PUT_16 (abfd
, filehdr_in
->f_magic
, filehdr_out
->Machine
);
5658 H_PUT_32 (abfd
, filehdr_in
->f_nscns
, filehdr_out
->NumberOfSections
);
5659 H_PUT_32 (abfd
, filehdr_in
->f_timdat
, filehdr_out
->TimeDateStamp
);
5660 PUT_FILEHDR_SYMPTR (abfd
, filehdr_in
->f_symptr
,
5661 filehdr_out
->PointerToSymbolTable
);
5662 H_PUT_32 (abfd
, filehdr_in
->f_nsyms
, filehdr_out
->NumberOfSymbols
);
5664 return bfd_coff_filhsz (abfd
);
5668 coff_bigobj_swap_sym_in (bfd
* abfd
, void * ext1
, void * in1
)
5670 SYMENT_BIGOBJ
*ext
= (SYMENT_BIGOBJ
*) ext1
;
5671 struct internal_syment
*in
= (struct internal_syment
*) in1
;
5673 if (ext
->e
.e_name
[0] == 0)
5675 in
->_n
._n_n
._n_zeroes
= 0;
5676 in
->_n
._n_n
._n_offset
= H_GET_32 (abfd
, ext
->e
.e
.e_offset
);
5680 #if SYMNMLEN != E_SYMNMLEN
5681 #error we need to cope with truncating or extending SYMNMLEN
5683 memcpy (in
->_n
._n_name
, ext
->e
.e_name
, SYMNMLEN
);
5687 in
->n_value
= H_GET_32 (abfd
, ext
->e_value
);
5688 in
->n_scnum
= H_GET_32 (abfd
, ext
->e_scnum
);
5689 in
->n_type
= H_GET_16 (abfd
, ext
->e_type
);
5690 in
->n_sclass
= H_GET_8 (abfd
, ext
->e_sclass
);
5691 in
->n_numaux
= H_GET_8 (abfd
, ext
->e_numaux
);
5695 coff_bigobj_swap_sym_out (bfd
* abfd
, void * inp
, void * extp
)
5697 struct internal_syment
*in
= (struct internal_syment
*) inp
;
5698 SYMENT_BIGOBJ
*ext
= (SYMENT_BIGOBJ
*) extp
;
5700 if (in
->_n
._n_name
[0] == 0)
5702 H_PUT_32 (abfd
, 0, ext
->e
.e
.e_zeroes
);
5703 H_PUT_32 (abfd
, in
->_n
._n_n
._n_offset
, ext
->e
.e
.e_offset
);
5707 #if SYMNMLEN != E_SYMNMLEN
5708 #error we need to cope with truncating or extending SYMNMLEN
5710 memcpy (ext
->e
.e_name
, in
->_n
._n_name
, SYMNMLEN
);
5714 H_PUT_32 (abfd
, in
->n_value
, ext
->e_value
);
5715 H_PUT_32 (abfd
, in
->n_scnum
, ext
->e_scnum
);
5717 H_PUT_16 (abfd
, in
->n_type
, ext
->e_type
);
5718 H_PUT_8 (abfd
, in
->n_sclass
, ext
->e_sclass
);
5719 H_PUT_8 (abfd
, in
->n_numaux
, ext
->e_numaux
);
5721 return SYMESZ_BIGOBJ
;
5725 coff_bigobj_swap_aux_in (bfd
*abfd
,
5733 AUXENT_BIGOBJ
*ext
= (AUXENT_BIGOBJ
*) ext1
;
5734 union internal_auxent
*in
= (union internal_auxent
*) in1
;
5742 memcpy (in
->x_file
.x_fname
, ext
->File
.Name
,
5743 numaux
* sizeof (AUXENT_BIGOBJ
));
5746 memcpy (in
->x_file
.x_fname
, ext
->File
.Name
, sizeof (ext
->File
.Name
));
5754 in
->x_scn
.x_scnlen
= H_GET_32 (abfd
, ext
->Section
.Length
);
5755 in
->x_scn
.x_nreloc
=
5756 H_GET_16 (abfd
, ext
->Section
.NumberOfRelocations
);
5757 in
->x_scn
.x_nlinno
=
5758 H_GET_16 (abfd
, ext
->Section
.NumberOfLinenumbers
);
5759 in
->x_scn
.x_checksum
= H_GET_32 (abfd
, ext
->Section
.Checksum
);
5760 in
->x_scn
.x_associated
= H_GET_16 (abfd
, ext
->Section
.Number
)
5761 | (H_GET_16 (abfd
, ext
->Section
.HighNumber
) << 16);
5762 in
->x_scn
.x_comdat
= H_GET_8 (abfd
, ext
->Section
.Selection
);
5768 in
->x_sym
.x_tagndx
.l
= H_GET_32 (abfd
, ext
->Sym
.WeakDefaultSymIndex
);
5769 /* Characteristics is ignored. */
5775 coff_bigobj_swap_aux_out (bfd
* abfd
,
5779 int indx ATTRIBUTE_UNUSED
,
5780 int numaux ATTRIBUTE_UNUSED
,
5783 union internal_auxent
* in
= (union internal_auxent
*) inp
;
5784 AUXENT_BIGOBJ
*ext
= (AUXENT_BIGOBJ
*) extp
;
5786 memset (ext
, 0, AUXESZ
);
5791 memcpy (ext
->File
.Name
, in
->x_file
.x_fname
, sizeof (ext
->File
.Name
));
5800 H_PUT_32 (abfd
, in
->x_scn
.x_scnlen
, ext
->Section
.Length
);
5801 H_PUT_16 (abfd
, in
->x_scn
.x_nreloc
,
5802 ext
->Section
.NumberOfRelocations
);
5803 H_PUT_16 (abfd
, in
->x_scn
.x_nlinno
,
5804 ext
->Section
.NumberOfLinenumbers
);
5805 H_PUT_32 (abfd
, in
->x_scn
.x_checksum
, ext
->Section
.Checksum
);
5806 H_PUT_16 (abfd
, in
->x_scn
.x_associated
& 0xffff,
5807 ext
->Section
.Number
);
5808 H_PUT_16 (abfd
, (in
->x_scn
.x_associated
>> 16),
5809 ext
->Section
.HighNumber
);
5810 H_PUT_8 (abfd
, in
->x_scn
.x_comdat
, ext
->Section
.Selection
);
5816 H_PUT_32 (abfd
, in
->x_sym
.x_tagndx
.l
, ext
->Sym
.WeakDefaultSymIndex
);
5817 H_PUT_32 (abfd
, 1, ext
->Sym
.WeakSearchType
);
5822 static bfd_coff_backend_data bigobj_swap_table
=
5824 coff_bigobj_swap_aux_in
, coff_bigobj_swap_sym_in
, coff_SWAP_lineno_in
,
5825 coff_bigobj_swap_aux_out
, coff_bigobj_swap_sym_out
,
5826 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5827 coff_bigobj_swap_filehdr_out
, coff_SWAP_aouthdr_out
,
5828 coff_SWAP_scnhdr_out
,
5829 FILHSZ_BIGOBJ
, AOUTSZ
, SCNHSZ
, SYMESZ_BIGOBJ
, AUXESZ_BIGOBJ
,
5830 RELSZ
, LINESZ
, FILNMLEN_BIGOBJ
,
5832 COFF_DEFAULT_LONG_SECTION_NAMES
,
5833 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5837 coff_bigobj_swap_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5838 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
5839 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5840 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5841 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5842 coff_classify_symbol
, coff_compute_section_file_positions
,
5843 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5844 coff_adjust_symndx
, coff_link_add_one_symbol
,
5845 coff_link_output_has_begun
, coff_final_link_postscript
,
5846 bfd_pe_print_pdata
/* huh */
5849 #endif /* COFF_WITH_PE_BIGOBJ */
5851 #ifndef coff_close_and_cleanup
5852 #define coff_close_and_cleanup _bfd_generic_close_and_cleanup
5855 #ifndef coff_bfd_free_cached_info
5856 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
5859 #ifndef coff_get_section_contents
5860 #define coff_get_section_contents _bfd_generic_get_section_contents
5863 #ifndef coff_bfd_copy_private_symbol_data
5864 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
5867 #ifndef coff_bfd_copy_private_header_data
5868 #define coff_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
5871 #ifndef coff_bfd_copy_private_section_data
5872 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
5875 #ifndef coff_bfd_copy_private_bfd_data
5876 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
5879 #ifndef coff_bfd_merge_private_bfd_data
5880 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
5883 #ifndef coff_bfd_set_private_flags
5884 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
5887 #ifndef coff_bfd_print_private_bfd_data
5888 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
5891 #ifndef coff_bfd_is_local_label_name
5892 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
5895 #ifndef coff_bfd_is_target_special_symbol
5896 #define coff_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
5899 #ifndef coff_read_minisymbols
5900 #define coff_read_minisymbols _bfd_generic_read_minisymbols
5903 #ifndef coff_minisymbol_to_symbol
5904 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
5907 /* The reloc lookup routine must be supplied by each individual COFF
5909 #ifndef coff_bfd_reloc_type_lookup
5910 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5912 #ifndef coff_bfd_reloc_name_lookup
5913 #define coff_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5916 #ifndef coff_bfd_get_relocated_section_contents
5917 #define coff_bfd_get_relocated_section_contents \
5918 bfd_generic_get_relocated_section_contents
5921 #ifndef coff_bfd_relax_section
5922 #define coff_bfd_relax_section bfd_generic_relax_section
5925 #ifndef coff_bfd_gc_sections
5926 #define coff_bfd_gc_sections bfd_generic_gc_sections
5929 #ifndef coff_bfd_lookup_section_flags
5930 #define coff_bfd_lookup_section_flags bfd_generic_lookup_section_flags
5933 #ifndef coff_bfd_merge_sections
5934 #define coff_bfd_merge_sections bfd_generic_merge_sections
5937 #ifndef coff_bfd_is_group_section
5938 #define coff_bfd_is_group_section bfd_generic_is_group_section
5941 #ifndef coff_bfd_discard_group
5942 #define coff_bfd_discard_group bfd_generic_discard_group
5945 #ifndef coff_section_already_linked
5946 #define coff_section_already_linked \
5947 _bfd_coff_section_already_linked
5950 #ifndef coff_bfd_define_common_symbol
5951 #define coff_bfd_define_common_symbol bfd_generic_define_common_symbol
5954 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5955 const bfd_target VAR = \
5958 bfd_target_coff_flavour, \
5959 BFD_ENDIAN_BIG, /* Data byte order is big. */ \
5960 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5961 /* object flags */ \
5962 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5963 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5964 /* section flags */ \
5965 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5966 UNDER, /* Leading symbol underscore. */ \
5967 '/', /* AR_pad_char. */ \
5968 15, /* AR_max_namelen. */ \
5969 0, /* match priority. */ \
5971 /* Data conversion functions. */ \
5972 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5973 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5974 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5976 /* Header conversion functions. */ \
5977 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5978 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5979 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5981 /* bfd_check_format. */ \
5982 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5983 _bfd_dummy_target }, \
5984 /* bfd_set_format. */ \
5985 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5986 /* bfd_write_contents. */ \
5987 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5990 BFD_JUMP_TABLE_GENERIC (coff), \
5991 BFD_JUMP_TABLE_COPY (coff), \
5992 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5993 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5994 BFD_JUMP_TABLE_SYMBOLS (coff), \
5995 BFD_JUMP_TABLE_RELOCS (coff), \
5996 BFD_JUMP_TABLE_WRITE (coff), \
5997 BFD_JUMP_TABLE_LINK (coff), \
5998 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
6005 #define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
6006 const bfd_target VAR = \
6009 bfd_target_coff_flavour, \
6010 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
6011 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
6012 /* object flags */ \
6013 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
6014 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
6015 /* section flags */ \
6016 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
6017 UNDER, /* Leading symbol underscore. */ \
6018 '/', /* AR_pad_char. */ \
6019 15, /* AR_max_namelen. */ \
6020 0, /* match priority. */ \
6022 /* Data conversion functions. */ \
6023 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
6024 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
6025 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
6027 /* Header conversion functions. */ \
6028 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
6029 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
6030 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
6032 /* bfd_check_format. */ \
6033 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
6034 _bfd_dummy_target }, \
6035 /* bfd_set_format. */ \
6036 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
6037 /* bfd_write_contents. */ \
6038 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
6041 BFD_JUMP_TABLE_GENERIC (coff), \
6042 BFD_JUMP_TABLE_COPY (coff), \
6043 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
6044 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
6045 BFD_JUMP_TABLE_SYMBOLS (coff), \
6046 BFD_JUMP_TABLE_RELOCS (coff), \
6047 BFD_JUMP_TABLE_WRITE (coff), \
6048 BFD_JUMP_TABLE_LINK (coff), \
6049 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
6056 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
6057 const bfd_target VAR = \
6060 bfd_target_coff_flavour, \
6061 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
6062 BFD_ENDIAN_LITTLE, /* Header byte order is little. */ \
6063 /* object flags */ \
6064 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
6065 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
6066 /* section flags */ \
6067 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
6068 UNDER, /* Leading symbol underscore. */ \
6069 '/', /* AR_pad_char. */ \
6070 15, /* AR_max_namelen. */ \
6071 0, /* match priority. */ \
6073 /* Data conversion functions. */ \
6074 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
6075 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
6076 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
6077 /* Header conversion functions. */ \
6078 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
6079 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
6080 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
6081 /* bfd_check_format. */ \
6082 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
6083 _bfd_dummy_target }, \
6084 /* bfd_set_format. */ \
6085 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
6086 /* bfd_write_contents. */ \
6087 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
6090 BFD_JUMP_TABLE_GENERIC (coff), \
6091 BFD_JUMP_TABLE_COPY (coff), \
6092 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
6093 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
6094 BFD_JUMP_TABLE_SYMBOLS (coff), \
6095 BFD_JUMP_TABLE_RELOCS (coff), \
6096 BFD_JUMP_TABLE_WRITE (coff), \
6097 BFD_JUMP_TABLE_LINK (coff), \
6098 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \