1 /* Support for the generic parts of most COFF variants, for BFD.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
4 Free Software Foundation, Inc.
5 Written by Cygnus Support.
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
24 Most of this hacked by Steve Chamberlain,
32 BFD supports a number of different flavours of coff format.
33 The major differences between formats are the sizes and
34 alignments of fields in structures on disk, and the occasional
37 Coff in all its varieties is implemented with a few common
38 files and a number of implementation specific files. For
39 example, The 88k bcs coff format is implemented in the file
40 @file{coff-m88k.c}. This file @code{#include}s
41 @file{coff/m88k.h} which defines the external structure of the
42 coff format for the 88k, and @file{coff/internal.h} which
43 defines the internal structure. @file{coff-m88k.c} also
44 defines the relocations used by the 88k format
47 The Intel i960 processor version of coff is implemented in
48 @file{coff-i960.c}. This file has the same structure as
49 @file{coff-m88k.c}, except that it includes @file{coff/i960.h}
50 rather than @file{coff-m88k.h}.
53 Porting to a new version of coff
55 The recommended method is to select from the existing
56 implementations the version of coff which is most like the one
57 you want to use. For example, we'll say that i386 coff is
58 the one you select, and that your coff flavour is called foo.
59 Copy @file{i386coff.c} to @file{foocoff.c}, copy
60 @file{../include/coff/i386.h} to @file{../include/coff/foo.h},
61 and add the lines to @file{targets.c} and @file{Makefile.in}
62 so that your new back end is used. Alter the shapes of the
63 structures in @file{../include/coff/foo.h} so that they match
64 what you need. You will probably also have to add
65 @code{#ifdef}s to the code in @file{coff/internal.h} and
66 @file{coffcode.h} if your version of coff is too wild.
68 You can verify that your new BFD backend works quite simply by
69 building @file{objdump} from the @file{binutils} directory,
70 and making sure that its version of what's going on and your
71 host system's idea (assuming it has the pretty standard coff
72 dump utility, usually called @code{att-dump} or just
73 @code{dump}) are the same. Then clean up your code, and send
74 what you've done to Cygnus. Then your stuff will be in the
75 next release, and you won't have to keep integrating it.
78 How the coff backend works
83 The Coff backend is split into generic routines that are
84 applicable to any Coff target and routines that are specific
85 to a particular target. The target-specific routines are
86 further split into ones which are basically the same for all
87 Coff targets except that they use the external symbol format
88 or use different values for certain constants.
90 The generic routines are in @file{coffgen.c}. These routines
91 work for any Coff target. They use some hooks into the target
92 specific code; the hooks are in a @code{bfd_coff_backend_data}
93 structure, one of which exists for each target.
95 The essentially similar target-specific routines are in
96 @file{coffcode.h}. This header file includes executable C code.
97 The various Coff targets first include the appropriate Coff
98 header file, make any special defines that are needed, and
99 then include @file{coffcode.h}.
101 Some of the Coff targets then also have additional routines in
102 the target source file itself.
104 For example, @file{coff-i960.c} includes
105 @file{coff/internal.h} and @file{coff/i960.h}. It then
106 defines a few constants, such as @code{I960}, and includes
107 @file{coffcode.h}. Since the i960 has complex relocation
108 types, @file{coff-i960.c} also includes some code to
109 manipulate the i960 relocs. This code is not in
110 @file{coffcode.h} because it would not be used by any other
116 Each flavour of coff supported in BFD has its own header file
117 describing the external layout of the structures. There is also
118 an internal description of the coff layout, in
119 @file{coff/internal.h}. A major function of the
120 coff backend is swapping the bytes and twiddling the bits to
121 translate the external form of the structures into the normal
122 internal form. This is all performed in the
123 @code{bfd_swap}_@i{thing}_@i{direction} routines. Some
124 elements are different sizes between different versions of
125 coff; it is the duty of the coff version specific include file
126 to override the definitions of various packing routines in
127 @file{coffcode.h}. E.g., the size of line number entry in coff is
128 sometimes 16 bits, and sometimes 32 bits. @code{#define}ing
129 @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the
130 correct one. No doubt, some day someone will find a version of
131 coff which has a varying field size not catered to at the
132 moment. To port BFD, that person will have to add more @code{#defines}.
133 Three of the bit twiddling routines are exported to
134 @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in}
135 and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol
136 table on its own, but uses BFD to fix things up. More of the
137 bit twiddlers are exported for @code{gas};
138 @code{coff_swap_aux_out}, @code{coff_swap_sym_out},
139 @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out},
140 @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out},
141 @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track
142 of all the symbol table and reloc drudgery itself, thereby
143 saving the internal BFD overhead, but uses BFD to swap things
144 on the way out, making cross ports much safer. Doing so also
145 allows BFD (and thus the linker) to use the same header files
146 as @code{gas}, which makes one avenue to disaster disappear.
151 The simple canonical form for symbols used by BFD is not rich
152 enough to keep all the information available in a coff symbol
153 table. The back end gets around this problem by keeping the original
154 symbol table around, "behind the scenes".
156 When a symbol table is requested (through a call to
157 @code{bfd_canonicalize_symtab}), a request gets through to
158 @code{coff_get_normalized_symtab}. This reads the symbol table from
159 the coff file and swaps all the structures inside into the
160 internal form. It also fixes up all the pointers in the table
161 (represented in the file by offsets from the first symbol in
162 the table) into physical pointers to elements in the new
163 internal table. This involves some work since the meanings of
164 fields change depending upon context: a field that is a
165 pointer to another structure in the symbol table at one moment
166 may be the size in bytes of a structure at the next. Another
167 pass is made over the table. All symbols which mark file names
168 (<<C_FILE>> symbols) are modified so that the internal
169 string points to the value in the auxent (the real filename)
170 rather than the normal text associated with the symbol
173 At this time the symbol names are moved around. Coff stores
174 all symbols less than nine characters long physically
175 within the symbol table; longer strings are kept at the end of
176 the file in the string table. This pass moves all strings
177 into memory and replaces them with pointers to the strings.
179 The symbol table is massaged once again, this time to create
180 the canonical table used by the BFD application. Each symbol
181 is inspected in turn, and a decision made (using the
182 @code{sclass} field) about the various flags to set in the
183 @code{asymbol}. @xref{Symbols}. The generated canonical table
184 shares strings with the hidden internal symbol table.
186 Any linenumbers are read from the coff file too, and attached
187 to the symbols which own the functions the linenumbers belong to.
192 Writing a symbol to a coff file which didn't come from a coff
193 file will lose any debugging information. The @code{asymbol}
194 structure remembers the BFD from which the symbol was taken, and on
195 output the back end makes sure that the same destination target as
196 source target is present.
198 When the symbols have come from a coff file then all the
199 debugging information is preserved.
201 Symbol tables are provided for writing to the back end in a
202 vector of pointers to pointers. This allows applications like
203 the linker to accumulate and output large symbol tables
204 without having to do too much byte copying.
206 This function runs through the provided symbol table and
207 patches each symbol marked as a file place holder
208 (@code{C_FILE}) to point to the next file place holder in the
209 list. It also marks each @code{offset} field in the list with
210 the offset from the first symbol of the current symbol.
212 Another function of this procedure is to turn the canonical
213 value form of BFD into the form used by coff. Internally, BFD
214 expects symbol values to be offsets from a section base; so a
215 symbol physically at 0x120, but in a section starting at
216 0x100, would have the value 0x20. Coff expects symbols to
217 contain their final value, so symbols have their values
218 changed at this point to reflect their sum with their owning
219 section. This transformation uses the
220 <<output_section>> field of the @code{asymbol}'s
221 @code{asection} @xref{Sections}.
223 o <<coff_mangle_symbols>>
225 This routine runs though the provided symbol table and uses
226 the offsets generated by the previous pass and the pointers
227 generated when the symbol table was read in to create the
228 structured hierarchy required by coff. It changes each pointer
229 to a symbol into the index into the symbol table of the asymbol.
231 o <<coff_write_symbols>>
233 This routine runs through the symbol table and patches up the
234 symbols from their internal form into the coff way, calls the
235 bit twiddlers, and writes out the table to the file.
244 The hidden information for an <<asymbol>> is described in a
245 <<combined_entry_type>>:
249 .typedef struct coff_ptr_struct
251 . {* Remembers the offset from the first symbol in the file for
252 . this symbol. Generated by coff_renumber_symbols. *}
253 . unsigned int offset;
255 . {* Should the value of this symbol be renumbered. Used for
256 . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *}
257 . unsigned int fix_value : 1;
259 . {* Should the tag field of this symbol be renumbered.
260 . Created by coff_pointerize_aux. *}
261 . unsigned int fix_tag : 1;
263 . {* Should the endidx field of this symbol be renumbered.
264 . Created by coff_pointerize_aux. *}
265 . unsigned int fix_end : 1;
267 . {* Should the x_csect.x_scnlen field be renumbered.
268 . Created by coff_pointerize_aux. *}
269 . unsigned int fix_scnlen : 1;
271 . {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the
272 . index into the line number entries. Set by coff_slurp_symbol_table. *}
273 . unsigned int fix_line : 1;
275 . {* The container for the symbol structure as read and translated
279 . union internal_auxent auxent;
280 . struct internal_syment syment;
282 .} combined_entry_type;
285 .{* Each canonical asymbol really looks like this: *}
287 .typedef struct coff_symbol_struct
289 . {* The actual symbol which the rest of BFD works with *}
292 . {* A pointer to the hidden information for this symbol *}
293 . combined_entry_type *native;
295 . {* A pointer to the linenumber information for this symbol *}
296 . struct lineno_cache_entry *lineno;
298 . {* Have the line numbers been relocated yet ? *}
299 . bfd_boolean done_lineno;
307 #include "coffswap.h"
310 #define STRING_SIZE_SIZE (4)
312 static long sec_to_styp_flags
313 PARAMS ((const char *, flagword
));
314 static bfd_boolean styp_to_sec_flags
315 PARAMS ((bfd
*, PTR
, const char *, asection
*, flagword
*));
316 static bfd_boolean coff_bad_format_hook
317 PARAMS ((bfd
*, PTR
));
318 static void coff_set_custom_section_alignment
319 PARAMS ((bfd
*, asection
*, const struct coff_section_alignment_entry
*,
320 const unsigned int));
321 static bfd_boolean coff_new_section_hook
322 PARAMS ((bfd
*, asection
*));
323 static bfd_boolean coff_set_arch_mach_hook
324 PARAMS ((bfd
*, PTR
));
325 static bfd_boolean coff_write_relocs
326 PARAMS ((bfd
*, int));
327 static bfd_boolean coff_set_flags
328 PARAMS ((bfd
*, unsigned int *, unsigned short *));
329 static bfd_boolean coff_set_arch_mach
330 PARAMS ((bfd
*, enum bfd_architecture
, unsigned long)) ATTRIBUTE_UNUSED
;
331 static bfd_boolean coff_compute_section_file_positions
333 static bfd_boolean coff_write_object_contents
334 PARAMS ((bfd
*)) ATTRIBUTE_UNUSED
;
335 static bfd_boolean coff_set_section_contents
336 PARAMS ((bfd
*, asection
*, const PTR
, file_ptr
, bfd_size_type
));
337 static PTR buy_and_read
338 PARAMS ((bfd
*, file_ptr
, bfd_size_type
));
339 static bfd_boolean coff_slurp_line_table
340 PARAMS ((bfd
*, asection
*));
341 static bfd_boolean coff_slurp_symbol_table
343 static enum coff_symbol_classification coff_classify_symbol
344 PARAMS ((bfd
*, struct internal_syment
*));
345 static bfd_boolean coff_slurp_reloc_table
346 PARAMS ((bfd
*, asection
*, asymbol
**));
347 static long coff_canonicalize_reloc
348 PARAMS ((bfd
*, asection
*, arelent
**, asymbol
**));
349 #ifndef coff_mkobject_hook
350 static PTR coff_mkobject_hook
351 PARAMS ((bfd
*, PTR
, PTR
));
354 static flagword handle_COMDAT
355 PARAMS ((bfd
*, flagword
, PTR
, const char *, asection
*));
357 #ifdef COFF_IMAGE_WITH_PE
358 static bfd_boolean coff_read_word
359 PARAMS ((bfd
*, unsigned int *));
360 static unsigned int coff_compute_checksum
362 static bfd_boolean coff_apply_checksum
366 static bfd_boolean ticoff0_bad_format_hook
367 PARAMS ((bfd
*, PTR
));
368 static bfd_boolean ticoff1_bad_format_hook
369 PARAMS ((bfd
*, PTR
));
372 /* void warning(); */
374 /* Return a word with STYP_* (scnhdr.s_flags) flags set to represent
375 the incoming SEC_* flags. The inverse of this function is
376 styp_to_sec_flags(). NOTE: If you add to/change this routine, you
377 should probably mirror the changes in styp_to_sec_flags(). */
381 /* Macros for setting debugging flags. */
383 #define STYP_XCOFF_DEBUG STYP_DEBUG
385 #define STYP_XCOFF_DEBUG STYP_INFO
388 #ifdef COFF_ALIGN_IN_S_FLAGS
389 #define STYP_DEBUG_INFO STYP_DSECT
391 #define STYP_DEBUG_INFO STYP_INFO
395 sec_to_styp_flags (sec_name
, sec_flags
)
396 const char *sec_name
;
401 if (!strcmp (sec_name
, _TEXT
))
403 styp_flags
= STYP_TEXT
;
405 else if (!strcmp (sec_name
, _DATA
))
407 styp_flags
= STYP_DATA
;
409 else if (!strcmp (sec_name
, _BSS
))
411 styp_flags
= STYP_BSS
;
414 else if (!strcmp (sec_name
, _COMMENT
))
416 styp_flags
= STYP_INFO
;
417 #endif /* _COMMENT */
420 else if (!strcmp (sec_name
, _LIB
))
422 styp_flags
= STYP_LIB
;
426 else if (!strcmp (sec_name
, _LIT
))
428 styp_flags
= STYP_LIT
;
431 else if (!strncmp (sec_name
, ".debug", 6))
433 /* Handle the XCOFF debug section and DWARF2 debug sections. */
435 styp_flags
= STYP_XCOFF_DEBUG
;
437 styp_flags
= STYP_DEBUG_INFO
;
439 else if (!strncmp (sec_name
, ".stab", 5))
441 styp_flags
= STYP_DEBUG_INFO
;
443 #ifdef COFF_LONG_SECTION_NAMES
444 else if (!strncmp (sec_name
, ".gnu.linkonce.wi.", 17))
446 styp_flags
= STYP_DEBUG_INFO
;
450 else if (!strcmp (sec_name
, _PAD
))
452 styp_flags
= STYP_PAD
;
454 else if (!strcmp (sec_name
, _LOADER
))
456 styp_flags
= STYP_LOADER
;
458 else if (!strcmp (sec_name
, _EXCEPT
))
460 styp_flags
= STYP_EXCEPT
;
462 else if (!strcmp (sec_name
, _TYPCHK
))
464 styp_flags
= STYP_TYPCHK
;
467 /* Try and figure out what it should be */
468 else if (sec_flags
& SEC_CODE
)
470 styp_flags
= STYP_TEXT
;
472 else if (sec_flags
& SEC_DATA
)
474 styp_flags
= STYP_DATA
;
476 else if (sec_flags
& SEC_READONLY
)
478 #ifdef STYP_LIT /* 29k readonly text/data section */
479 styp_flags
= STYP_LIT
;
481 styp_flags
= STYP_TEXT
;
482 #endif /* STYP_LIT */
484 else if (sec_flags
& SEC_LOAD
)
486 styp_flags
= STYP_TEXT
;
488 else if (sec_flags
& SEC_ALLOC
)
490 styp_flags
= STYP_BSS
;
494 if (sec_flags
& SEC_CLINK
)
495 styp_flags
|= STYP_CLINK
;
499 if (sec_flags
& SEC_BLOCK
)
500 styp_flags
|= STYP_BLOCK
;
504 if ((sec_flags
& (SEC_NEVER_LOAD
| SEC_COFF_SHARED_LIBRARY
)) != 0)
505 styp_flags
|= STYP_NOLOAD
;
511 #else /* COFF_WITH_PE */
513 /* The PE version; see above for the general comments. The non-PE
514 case seems to be more guessing, and breaks PE format; specifically,
515 .rdata is readonly, but it sure ain't text. Really, all this
516 should be set up properly in gas (or whatever assembler is in use),
517 and honor whatever objcopy/strip, etc. sent us as input. */
520 sec_to_styp_flags (sec_name
, sec_flags
)
521 const char *sec_name ATTRIBUTE_UNUSED
;
526 /* caution: there are at least three groups of symbols that have
527 very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*.
528 SEC_* are the BFD internal flags, used for generic BFD
529 information. STYP_* are the COFF section flags which appear in
530 COFF files. IMAGE_SCN_* are the PE section flags which appear in
531 PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap,
532 but there are more IMAGE_SCN_* flags. */
537 if ((sec_flags
& SEC_CODE
) != 0)
538 styp_flags
|= IMAGE_SCN_CNT_CODE
;
539 if ((sec_flags
& SEC_DATA
) != 0)
540 styp_flags
|= IMAGE_SCN_CNT_INITIALIZED_DATA
;
541 if ((sec_flags
& SEC_ALLOC
) != 0 && (sec_flags
& SEC_LOAD
) == 0)
542 styp_flags
|= IMAGE_SCN_CNT_UNINITIALIZED_DATA
; /* ==STYP_BSS */
544 /* skip constRUCTOR */
547 if ((sec_flags
& (SEC_NEVER_LOAD
| SEC_COFF_SHARED_LIBRARY
)) != 0)
548 styp_flags
|= STYP_NOLOAD
;
550 if ((sec_flags
& SEC_IS_COMMON
) != 0)
551 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
552 if ((sec_flags
& SEC_DEBUGGING
) != 0)
553 styp_flags
|= IMAGE_SCN_MEM_DISCARDABLE
;
554 if ((sec_flags
& SEC_EXCLUDE
) != 0)
555 styp_flags
|= IMAGE_SCN_LNK_REMOVE
;
556 if ((sec_flags
& SEC_NEVER_LOAD
) != 0)
557 styp_flags
|= IMAGE_SCN_LNK_REMOVE
;
560 if (sec_flags
& SEC_LINK_ONCE
)
561 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
562 /* skip LINK_DUPLICATES */
563 /* skip LINKER_CREATED */
565 /* For now, the read/write bits are mapped onto SEC_READONLY, even
566 though the semantics don't quite match. The bits from the input
567 are retained in pei_section_data(abfd, section)->pe_flags. */
569 styp_flags
|= IMAGE_SCN_MEM_READ
; /* Always readable. */
570 if ((sec_flags
& SEC_READONLY
) == 0)
571 styp_flags
|= IMAGE_SCN_MEM_WRITE
; /* Invert READONLY for write. */
572 if (sec_flags
& SEC_CODE
)
573 styp_flags
|= IMAGE_SCN_MEM_EXECUTE
; /* CODE->EXECUTE. */
574 if (sec_flags
& SEC_SHARED
)
575 styp_flags
|= IMAGE_SCN_MEM_SHARED
; /* Shared remains meaningful. */
580 #endif /* COFF_WITH_PE */
582 /* Return a word with SEC_* flags set to represent the incoming STYP_*
583 flags (from scnhdr.s_flags). The inverse of this function is
584 sec_to_styp_flags(). NOTE: If you add to/change this routine, you
585 should probably mirror the changes in sec_to_styp_flags(). */
590 styp_to_sec_flags (abfd
, hdr
, name
, section
, flags_ptr
)
591 bfd
*abfd ATTRIBUTE_UNUSED
;
594 asection
*section ATTRIBUTE_UNUSED
;
597 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
598 long styp_flags
= internal_s
->s_flags
;
599 flagword sec_flags
= 0;
602 if (styp_flags
& STYP_BLOCK
)
603 sec_flags
|= SEC_BLOCK
;
607 if (styp_flags
& STYP_CLINK
)
608 sec_flags
|= SEC_CLINK
;
612 if (styp_flags
& STYP_NOLOAD
)
613 sec_flags
|= SEC_NEVER_LOAD
;
614 #endif /* STYP_NOLOAD */
616 /* For 386 COFF, at least, an unloadable text or data section is
617 actually a shared library section. */
618 if (styp_flags
& STYP_TEXT
)
620 if (sec_flags
& SEC_NEVER_LOAD
)
621 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
623 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
625 else if (styp_flags
& STYP_DATA
)
627 if (sec_flags
& SEC_NEVER_LOAD
)
628 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
630 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
632 else if (styp_flags
& STYP_BSS
)
634 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
635 if (sec_flags
& SEC_NEVER_LOAD
)
636 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
639 sec_flags
|= SEC_ALLOC
;
641 else if (styp_flags
& STYP_INFO
)
643 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
644 defined. coff_compute_section_file_positions uses
645 COFF_PAGE_SIZE to ensure that the low order bits of the
646 section VMA and the file offset match. If we don't know
647 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
648 and demand page loading of the file will fail. */
649 #if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS)
650 sec_flags
|= SEC_DEBUGGING
;
653 else if (styp_flags
& STYP_PAD
)
655 else if (strcmp (name
, _TEXT
) == 0)
657 if (sec_flags
& SEC_NEVER_LOAD
)
658 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
660 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
662 else if (strcmp (name
, _DATA
) == 0)
664 if (sec_flags
& SEC_NEVER_LOAD
)
665 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
667 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
669 else if (strcmp (name
, _BSS
) == 0)
671 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
672 if (sec_flags
& SEC_NEVER_LOAD
)
673 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
676 sec_flags
|= SEC_ALLOC
;
678 else if (strncmp (name
, ".debug", 6) == 0
680 || strcmp (name
, _COMMENT
) == 0
682 #ifdef COFF_LONG_SECTION_NAMES
683 || strncmp (name
, ".gnu.linkonce.wi.", 17) == 0
685 || strncmp (name
, ".stab", 5) == 0)
687 #ifdef COFF_PAGE_SIZE
688 sec_flags
|= SEC_DEBUGGING
;
692 else if (strcmp (name
, _LIB
) == 0)
696 else if (strcmp (name
, _LIT
) == 0)
697 sec_flags
= SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
;
700 sec_flags
|= SEC_ALLOC
| SEC_LOAD
;
702 #ifdef STYP_LIT /* A29k readonly text/data section type. */
703 if ((styp_flags
& STYP_LIT
) == STYP_LIT
)
704 sec_flags
= (SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
);
705 #endif /* STYP_LIT */
707 #ifdef STYP_OTHER_LOAD /* Other loaded sections. */
708 if (styp_flags
& STYP_OTHER_LOAD
)
709 sec_flags
= (SEC_LOAD
| SEC_ALLOC
);
710 #endif /* STYP_SDATA */
712 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
713 /* As a GNU extension, if the name begins with .gnu.linkonce, we
714 only link a single copy of the section. This is used to support
715 g++. g++ will emit each template expansion in its own section.
716 The symbols will be defined as weak, so that multiple definitions
717 are permitted. The GNU linker extension is to actually discard
718 all but one of the sections. */
719 if (strncmp (name
, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0)
720 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
723 if (flags_ptr
== NULL
)
726 * flags_ptr
= sec_flags
;
730 #else /* COFF_WITH_PE */
733 handle_COMDAT (abfd
, sec_flags
, hdr
, name
, section
)
740 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
741 bfd_byte
*esymstart
, *esym
, *esymend
;
743 char *target_name
= NULL
;
745 sec_flags
|= SEC_LINK_ONCE
;
747 /* Unfortunately, the PE format stores essential information in
748 the symbol table, of all places. We need to extract that
749 information now, so that objdump and the linker will know how
750 to handle the section without worrying about the symbols. We
751 can't call slurp_symtab, because the linker doesn't want the
754 /* COMDAT sections are special. The first symbol is the section
755 symbol, which tells what kind of COMDAT section it is. The
756 second symbol is the "comdat symbol" - the one with the
757 unique name. GNU uses the section symbol for the unique
758 name; MS uses ".text" for every comdat section. Sigh. - DJ */
760 /* This is not mirrored in sec_to_styp_flags(), but there
761 doesn't seem to be a need to, either, and it would at best be
764 if (! _bfd_coff_get_external_symbols (abfd
))
767 esymstart
= esym
= (bfd_byte
*) obj_coff_external_syms (abfd
);
768 esymend
= esym
+ obj_raw_syment_count (abfd
) * bfd_coff_symesz (abfd
);
770 while (esym
< esymend
)
772 struct internal_syment isym
;
773 char buf
[SYMNMLEN
+ 1];
776 bfd_coff_swap_sym_in (abfd
, (PTR
) esym
, (PTR
) &isym
);
778 if (sizeof (internal_s
->s_name
) > SYMNMLEN
)
780 /* This case implies that the matching
781 symbol name will be in the string table. */
785 if (isym
.n_scnum
== section
->target_index
)
787 /* According to the MSVC documentation, the first
788 TWO entries with the section # are both of
789 interest to us. The first one is the "section
790 symbol" (section name). The second is the comdat
791 symbol name. Here, we've found the first
792 qualifying entry; we distinguish it from the
793 second with a state flag.
795 In the case of gas-generated (at least until that
796 is fixed) .o files, it isn't necessarily the
797 second one. It may be some other later symbol.
799 Since gas also doesn't follow MS conventions and
800 emits the section similar to .text$<name>, where
801 <something> is the name we're looking for, we
802 distinguish the two as follows:
804 If the section name is simply a section name (no
805 $) we presume it's MS-generated, and look at
806 precisely the second symbol for the comdat name.
807 If the section name has a $, we assume it's
808 gas-generated, and look for <something> (whatever
809 follows the $) as the comdat symbol. */
811 /* All 3 branches use this. */
812 symname
= _bfd_coff_internal_syment_name (abfd
, &isym
, buf
);
821 /* The first time we've seen the symbol. */
822 union internal_auxent aux
;
826 /* If it isn't the stuff we're expecting, die;
827 The MS documentation is vague, but it
828 appears that the second entry serves BOTH
829 as the comdat symbol and the defining
830 symbol record (either C_STAT or C_EXT,
831 possibly with an aux entry with debug
832 information if it's a function.) It
833 appears the only way to find the second one
834 is to count. (On Intel, they appear to be
835 adjacent, but on Alpha, they have been
838 Here, we think we've found the first one,
839 but there's some checking we can do to be
842 if (! (isym
.n_sclass
== C_STAT
843 && isym
.n_type
== T_NULL
844 && isym
.n_value
== 0))
847 /* FIXME LATER: MSVC generates section names
848 like .text for comdats. Gas generates
849 names like .text$foo__Fv (in the case of a
850 function). See comment above for more. */
852 if (strcmp (name
, symname
) != 0)
855 /* This is the section symbol. */
856 bfd_coff_swap_aux_in (abfd
, (PTR
) (esym
+ bfd_coff_symesz (abfd
)),
857 isym
.n_type
, isym
.n_sclass
,
858 0, isym
.n_numaux
, (PTR
) &aux
);
860 target_name
= strchr (name
, '$');
861 if (target_name
!= NULL
)
869 /* FIXME: Microsoft uses NODUPLICATES and
870 ASSOCIATIVE, but gnu uses ANY and
871 SAME_SIZE. Unfortunately, gnu doesn't do
872 the comdat symbols right. So, until we can
873 fix it to do the right thing, we are
874 temporarily disabling comdats for the MS
875 types (they're used in DLLs and C++, but we
876 don't support *their* C++ libraries anyway
879 /* Cygwin does not follow the MS style, and
880 uses ANY and SAME_SIZE where NODUPLICATES
881 and ASSOCIATIVE should be used. For
882 Interix, we just do the right thing up
885 switch (aux
.x_scn
.x_comdat
)
887 case IMAGE_COMDAT_SELECT_NODUPLICATES
:
888 #ifdef STRICT_PE_FORMAT
889 sec_flags
|= SEC_LINK_DUPLICATES_ONE_ONLY
;
891 sec_flags
&= ~SEC_LINK_ONCE
;
895 case IMAGE_COMDAT_SELECT_ANY
:
896 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
899 case IMAGE_COMDAT_SELECT_SAME_SIZE
:
900 sec_flags
|= SEC_LINK_DUPLICATES_SAME_SIZE
;
903 case IMAGE_COMDAT_SELECT_EXACT_MATCH
:
904 /* Not yet fully implemented ??? */
905 sec_flags
|= SEC_LINK_DUPLICATES_SAME_CONTENTS
;
908 /* debug$S gets this case; other
911 /* There may be no symbol... we'll search
912 the whole table... Is this the right
913 place to play this game? Or should we do
914 it when reading it in. */
915 case IMAGE_COMDAT_SELECT_ASSOCIATIVE
:
916 #ifdef STRICT_PE_FORMAT
917 /* FIXME: This is not currently implemented. */
918 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
920 sec_flags
&= ~SEC_LINK_ONCE
;
924 default: /* 0 means "no symbol" */
925 /* debug$F gets this case; other
927 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
934 /* Gas mode: the first matching on partial name. */
936 #ifndef TARGET_UNDERSCORE
937 #define TARGET_UNDERSCORE 0
939 /* Is this the name we're looking for ? */
940 if (strcmp (target_name
,
941 symname
+ (TARGET_UNDERSCORE
? 1 : 0)) != 0)
943 /* Not the name we're looking for */
944 esym
+= (isym
.n_numaux
+ 1) * bfd_coff_symesz (abfd
);
949 /* MSVC mode: the lexically second symbol (or
950 drop through from the above). */
955 /* This must the second symbol with the
956 section #. It is the actual symbol name.
957 Intel puts the two adjacent, but Alpha (at
958 least) spreads them out. */
960 amt
= sizeof (struct bfd_comdat_info
);
961 section
->comdat
= bfd_alloc (abfd
, amt
);
962 if (section
->comdat
== NULL
)
965 section
->comdat
->symbol
=
966 (esym
- esymstart
) / bfd_coff_symesz (abfd
);
968 amt
= strlen (symname
) + 1;
969 newname
= bfd_alloc (abfd
, amt
);
973 strcpy (newname
, symname
);
974 section
->comdat
->name
= newname
;
981 esym
+= (isym
.n_numaux
+ 1) * bfd_coff_symesz (abfd
);
989 /* The PE version; see above for the general comments.
991 Since to set the SEC_LINK_ONCE and associated flags, we have to
992 look at the symbol table anyway, we return the symbol table index
993 of the symbol being used as the COMDAT symbol. This is admittedly
994 ugly, but there's really nowhere else that we have access to the
995 required information. FIXME: Is the COMDAT symbol index used for
996 any purpose other than objdump? */
999 styp_to_sec_flags (abfd
, hdr
, name
, section
, flags_ptr
)
1004 flagword
*flags_ptr
;
1006 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
1007 long styp_flags
= internal_s
->s_flags
;
1009 bfd_boolean result
= TRUE
;
1011 /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */
1012 sec_flags
= SEC_READONLY
;
1014 /* Process each flag bit in styp_flags in turn. */
1017 long flag
= styp_flags
& - styp_flags
;
1018 char * unhandled
= NULL
;
1020 styp_flags
&= ~ flag
;
1022 /* We infer from the distinct read/write/execute bits the settings
1023 of some of the bfd flags; the actual values, should we need them,
1024 are also in pei_section_data (abfd, section)->pe_flags. */
1029 unhandled
= "STYP_DSECT";
1032 unhandled
= "STYP_GROUP";
1035 unhandled
= "STYP_COPY";
1038 unhandled
= "STYP_OVER";
1040 #ifdef SEC_NEVER_LOAD
1042 sec_flags
|= SEC_NEVER_LOAD
;
1045 case IMAGE_SCN_MEM_READ
:
1046 /* Ignored, assume it always to be true. */
1048 case IMAGE_SCN_TYPE_NO_PAD
:
1051 case IMAGE_SCN_LNK_OTHER
:
1052 unhandled
= "IMAGE_SCN_LNK_OTHER";
1054 case IMAGE_SCN_MEM_NOT_CACHED
:
1055 unhandled
= "IMAGE_SCN_MEM_NOT_CACHED";
1057 case IMAGE_SCN_MEM_NOT_PAGED
:
1058 unhandled
= "IMAGE_SCN_MEM_NOT_PAGED";
1060 case IMAGE_SCN_MEM_EXECUTE
:
1061 sec_flags
|= SEC_CODE
;
1063 case IMAGE_SCN_MEM_WRITE
:
1064 sec_flags
&= ~ SEC_READONLY
;
1066 case IMAGE_SCN_MEM_DISCARDABLE
:
1067 /* The MS PE spec sets the DISCARDABLE flag on .reloc sections
1068 but we do not want them to be labelled as debug section, since
1069 then strip would remove them. */
1070 if (strncmp (name
, ".reloc", sizeof ".reloc" - 1) != 0)
1071 sec_flags
|= SEC_DEBUGGING
;
1073 case IMAGE_SCN_MEM_SHARED
:
1074 sec_flags
|= SEC_SHARED
;
1076 case IMAGE_SCN_LNK_REMOVE
:
1077 sec_flags
|= SEC_EXCLUDE
;
1079 case IMAGE_SCN_CNT_CODE
:
1080 sec_flags
|= SEC_CODE
| SEC_ALLOC
| SEC_LOAD
;
1082 case IMAGE_SCN_CNT_INITIALIZED_DATA
:
1083 sec_flags
|= SEC_DATA
| SEC_ALLOC
| SEC_LOAD
;
1085 case IMAGE_SCN_CNT_UNINITIALIZED_DATA
:
1086 sec_flags
|= SEC_ALLOC
;
1088 case IMAGE_SCN_LNK_INFO
:
1089 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
1090 defined. coff_compute_section_file_positions uses
1091 COFF_PAGE_SIZE to ensure that the low order bits of the
1092 section VMA and the file offset match. If we don't know
1093 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
1094 and demand page loading of the file will fail. */
1095 #ifdef COFF_PAGE_SIZE
1096 sec_flags
|= SEC_DEBUGGING
;
1099 case IMAGE_SCN_LNK_COMDAT
:
1100 /* COMDAT gets very special treatment. */
1101 sec_flags
= handle_COMDAT (abfd
, sec_flags
, hdr
, name
, section
);
1104 /* Silently ignore for now. */
1108 /* If the section flag was not handled, report it here. */
1109 if (unhandled
!= NULL
)
1111 (*_bfd_error_handler
)
1112 (_("%s (%s): Section flag %s (0x%x) ignored"),
1113 bfd_archive_filename (abfd
), name
, unhandled
, flag
);
1118 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
1119 /* As a GNU extension, if the name begins with .gnu.linkonce, we
1120 only link a single copy of the section. This is used to support
1121 g++. g++ will emit each template expansion in its own section.
1122 The symbols will be defined as weak, so that multiple definitions
1123 are permitted. The GNU linker extension is to actually discard
1124 all but one of the sections. */
1125 if (strncmp (name
, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0)
1126 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
1130 * flags_ptr
= sec_flags
;
1135 #endif /* COFF_WITH_PE */
1137 #define get_index(symbol) ((symbol)->udata.i)
1141 bfd_coff_backend_data
1145 .{* COFF symbol classifications. *}
1147 .enum coff_symbol_classification
1149 . {* Global symbol. *}
1150 . COFF_SYMBOL_GLOBAL,
1151 . {* Common symbol. *}
1152 . COFF_SYMBOL_COMMON,
1153 . {* Undefined symbol. *}
1154 . COFF_SYMBOL_UNDEFINED,
1155 . {* Local symbol. *}
1156 . COFF_SYMBOL_LOCAL,
1157 . {* PE section symbol. *}
1158 . COFF_SYMBOL_PE_SECTION
1161 Special entry points for gdb to swap in coff symbol table parts:
1164 . void (*_bfd_coff_swap_aux_in)
1165 . PARAMS ((bfd *, PTR, int, int, int, int, PTR));
1167 . void (*_bfd_coff_swap_sym_in)
1168 . PARAMS ((bfd *, PTR, PTR));
1170 . void (*_bfd_coff_swap_lineno_in)
1171 . PARAMS ((bfd *, PTR, PTR));
1173 . unsigned int (*_bfd_coff_swap_aux_out)
1174 . PARAMS ((bfd *, PTR, int, int, int, int, PTR));
1176 . unsigned int (*_bfd_coff_swap_sym_out)
1177 . PARAMS ((bfd *, PTR, PTR));
1179 . unsigned int (*_bfd_coff_swap_lineno_out)
1180 . PARAMS ((bfd *, PTR, PTR));
1182 . unsigned int (*_bfd_coff_swap_reloc_out)
1183 . PARAMS ((bfd *, PTR, PTR));
1185 . unsigned int (*_bfd_coff_swap_filehdr_out)
1186 . PARAMS ((bfd *, PTR, PTR));
1188 . unsigned int (*_bfd_coff_swap_aouthdr_out)
1189 . PARAMS ((bfd *, PTR, PTR));
1191 . unsigned int (*_bfd_coff_swap_scnhdr_out)
1192 . PARAMS ((bfd *, PTR, PTR));
1194 . unsigned int _bfd_filhsz;
1195 . unsigned int _bfd_aoutsz;
1196 . unsigned int _bfd_scnhsz;
1197 . unsigned int _bfd_symesz;
1198 . unsigned int _bfd_auxesz;
1199 . unsigned int _bfd_relsz;
1200 . unsigned int _bfd_linesz;
1201 . unsigned int _bfd_filnmlen;
1202 . bfd_boolean _bfd_coff_long_filenames;
1203 . bfd_boolean _bfd_coff_long_section_names;
1204 . unsigned int _bfd_coff_default_section_alignment_power;
1205 . bfd_boolean _bfd_coff_force_symnames_in_strings;
1206 . unsigned int _bfd_coff_debug_string_prefix_length;
1208 . void (*_bfd_coff_swap_filehdr_in)
1209 . PARAMS ((bfd *, PTR, PTR));
1211 . void (*_bfd_coff_swap_aouthdr_in)
1212 . PARAMS ((bfd *, PTR, PTR));
1214 . void (*_bfd_coff_swap_scnhdr_in)
1215 . PARAMS ((bfd *, PTR, PTR));
1217 . void (*_bfd_coff_swap_reloc_in)
1218 . PARAMS ((bfd *abfd, PTR, PTR));
1220 . bfd_boolean (*_bfd_coff_bad_format_hook)
1221 . PARAMS ((bfd *, PTR));
1223 . bfd_boolean (*_bfd_coff_set_arch_mach_hook)
1224 . PARAMS ((bfd *, PTR));
1226 . PTR (*_bfd_coff_mkobject_hook)
1227 . PARAMS ((bfd *, PTR, PTR));
1229 . bfd_boolean (*_bfd_styp_to_sec_flags_hook)
1230 . PARAMS ((bfd *, PTR, const char *, asection *, flagword *));
1232 . void (*_bfd_set_alignment_hook)
1233 . PARAMS ((bfd *, asection *, PTR));
1235 . bfd_boolean (*_bfd_coff_slurp_symbol_table)
1238 . bfd_boolean (*_bfd_coff_symname_in_debug)
1239 . PARAMS ((bfd *, struct internal_syment *));
1241 . bfd_boolean (*_bfd_coff_pointerize_aux_hook)
1242 . PARAMS ((bfd *, combined_entry_type *, combined_entry_type *,
1243 . unsigned int, combined_entry_type *));
1245 . bfd_boolean (*_bfd_coff_print_aux)
1246 . PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *,
1247 . combined_entry_type *, unsigned int));
1249 . void (*_bfd_coff_reloc16_extra_cases)
1250 . PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
1251 . bfd_byte *, unsigned int *, unsigned int *));
1253 . int (*_bfd_coff_reloc16_estimate)
1254 . PARAMS ((bfd *, asection *, arelent *, unsigned int,
1255 . struct bfd_link_info *));
1257 . enum coff_symbol_classification (*_bfd_coff_classify_symbol)
1258 . PARAMS ((bfd *, struct internal_syment *));
1260 . bfd_boolean (*_bfd_coff_compute_section_file_positions)
1263 . bfd_boolean (*_bfd_coff_start_final_link)
1264 . PARAMS ((bfd *, struct bfd_link_info *));
1266 . bfd_boolean (*_bfd_coff_relocate_section)
1267 . PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
1268 . struct internal_reloc *, struct internal_syment *, asection **));
1270 . reloc_howto_type *(*_bfd_coff_rtype_to_howto)
1271 . PARAMS ((bfd *, asection *, struct internal_reloc *,
1272 . struct coff_link_hash_entry *, struct internal_syment *,
1275 . bfd_boolean (*_bfd_coff_adjust_symndx)
1276 . PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *,
1277 . struct internal_reloc *, bfd_boolean *));
1279 . bfd_boolean (*_bfd_coff_link_add_one_symbol)
1280 . PARAMS ((struct bfd_link_info *, bfd *, const char *, flagword,
1281 . asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
1282 . struct bfd_link_hash_entry **));
1284 . bfd_boolean (*_bfd_coff_link_output_has_begun)
1285 . PARAMS ((bfd *, struct coff_final_link_info *));
1287 . bfd_boolean (*_bfd_coff_final_link_postscript)
1288 . PARAMS ((bfd *, struct coff_final_link_info *));
1290 .} bfd_coff_backend_data;
1292 .#define coff_backend_info(abfd) \
1293 . ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
1295 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
1296 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
1298 .#define bfd_coff_swap_sym_in(a,e,i) \
1299 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
1301 .#define bfd_coff_swap_lineno_in(a,e,i) \
1302 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
1304 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
1305 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
1307 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
1308 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
1310 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
1311 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
1313 .#define bfd_coff_swap_sym_out(abfd, i,o) \
1314 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
1316 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
1317 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
1319 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
1320 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
1322 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
1323 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
1325 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1326 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1327 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1328 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1329 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1330 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1331 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
1332 .#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
1333 .#define bfd_coff_long_filenames(abfd) \
1334 . (coff_backend_info (abfd)->_bfd_coff_long_filenames)
1335 .#define bfd_coff_long_section_names(abfd) \
1336 . (coff_backend_info (abfd)->_bfd_coff_long_section_names)
1337 .#define bfd_coff_default_section_alignment_power(abfd) \
1338 . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
1339 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
1340 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
1342 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
1343 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
1345 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
1346 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
1348 .#define bfd_coff_swap_reloc_in(abfd, i, o) \
1349 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
1351 .#define bfd_coff_bad_format_hook(abfd, filehdr) \
1352 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
1354 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
1355 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
1356 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
1357 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\
1358 . (abfd, filehdr, aouthdr))
1360 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
1361 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1362 . (abfd, scnhdr, name, section, flags_ptr))
1364 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
1365 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
1367 .#define bfd_coff_slurp_symbol_table(abfd)\
1368 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
1370 .#define bfd_coff_symname_in_debug(abfd, sym)\
1371 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
1373 .#define bfd_coff_force_symnames_in_strings(abfd)\
1374 . (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
1376 .#define bfd_coff_debug_string_prefix_length(abfd)\
1377 . (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
1379 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
1380 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1381 . (abfd, file, base, symbol, aux, indaux))
1383 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\
1384 . reloc, data, src_ptr, dst_ptr)\
1385 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1386 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
1388 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
1389 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1390 . (abfd, section, reloc, shrink, link_info))
1392 .#define bfd_coff_classify_symbol(abfd, sym)\
1393 . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1396 .#define bfd_coff_compute_section_file_positions(abfd)\
1397 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1400 .#define bfd_coff_start_final_link(obfd, info)\
1401 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1403 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
1404 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1405 . (obfd, info, ibfd, o, con, rel, isyms, secs))
1406 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
1407 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1408 . (abfd, sec, rel, h, sym, addendp))
1409 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
1410 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1411 . (obfd, info, ibfd, sec, rel, adjustedp))
1412 .#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\
1413 . value, string, cp, coll, hashp)\
1414 . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1415 . (info, abfd, name, flags, section, value, string, cp, coll, hashp))
1417 .#define bfd_coff_link_output_has_begun(a,p) \
1418 . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a,p))
1419 .#define bfd_coff_final_link_postscript(a,p) \
1420 . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a,p))
1424 /* See whether the magic number matches. */
1427 coff_bad_format_hook (abfd
, filehdr
)
1428 bfd
* abfd ATTRIBUTE_UNUSED
;
1431 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1433 if (BADMAG (*internal_f
))
1436 /* If the optional header is NULL or not the correct size then
1437 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1438 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1439 optional header is of a different size.
1441 But the mips keeps extra stuff in it's opthdr, so dont check
1444 #if defined(M88) || defined(I960)
1445 if (internal_f
->f_opthdr
!= 0 && bfd_coff_aoutsz (abfd
) != internal_f
->f_opthdr
)
1454 ticoff0_bad_format_hook (abfd
, filehdr
)
1455 bfd
*abfd ATTRIBUTE_UNUSED
;
1458 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1460 if (COFF0_BADMAG (*internal_f
))
1469 ticoff1_bad_format_hook (abfd
, filehdr
)
1470 bfd
*abfd ATTRIBUTE_UNUSED
;
1473 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1475 if (COFF1_BADMAG (*internal_f
))
1482 /* Check whether this section uses an alignment other than the
1486 coff_set_custom_section_alignment (abfd
, section
, alignment_table
, table_size
)
1487 bfd
*abfd ATTRIBUTE_UNUSED
;
1489 const struct coff_section_alignment_entry
*alignment_table
;
1490 const unsigned int table_size
;
1492 const unsigned int default_alignment
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1495 for (i
= 0; i
< table_size
; ++i
)
1497 const char *secname
= bfd_get_section_name (abfd
, section
);
1499 if (alignment_table
[i
].comparison_length
== (unsigned int) -1
1500 ? strcmp (alignment_table
[i
].name
, secname
) == 0
1501 : strncmp (alignment_table
[i
].name
, secname
,
1502 alignment_table
[i
].comparison_length
) == 0)
1505 if (i
>= table_size
)
1508 if (alignment_table
[i
].default_alignment_min
!= COFF_ALIGNMENT_FIELD_EMPTY
1509 && default_alignment
< alignment_table
[i
].default_alignment_min
)
1512 if (alignment_table
[i
].default_alignment_max
!= COFF_ALIGNMENT_FIELD_EMPTY
1513 #if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0
1514 && default_alignment
> alignment_table
[i
].default_alignment_max
1519 section
->alignment_power
= alignment_table
[i
].alignment_power
;
1522 /* Custom section alignment records. */
1524 static const struct coff_section_alignment_entry
1525 coff_section_alignment_table
[] =
1527 #ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1528 COFF_SECTION_ALIGNMENT_ENTRIES
,
1530 /* There must not be any gaps between .stabstr sections. */
1531 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1532 1, COFF_ALIGNMENT_FIELD_EMPTY
, 0 },
1533 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1534 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1535 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1536 /* Similarly for the .ctors and .dtors sections. */
1537 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1538 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1539 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1540 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 }
1543 static const unsigned int coff_section_alignment_table_size
=
1544 sizeof coff_section_alignment_table
/ sizeof coff_section_alignment_table
[0];
1546 /* Initialize a section structure with information peculiar to this
1547 particular implementation of COFF. */
1550 coff_new_section_hook (abfd
, section
)
1554 combined_entry_type
*native
;
1557 section
->alignment_power
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1560 if (bfd_xcoff_text_align_power (abfd
) != 0
1561 && strcmp (bfd_get_section_name (abfd
, section
), ".text") == 0)
1562 section
->alignment_power
= bfd_xcoff_text_align_power (abfd
);
1563 if (bfd_xcoff_data_align_power (abfd
) != 0
1564 && strcmp (bfd_get_section_name (abfd
, section
), ".data") == 0)
1565 section
->alignment_power
= bfd_xcoff_data_align_power (abfd
);
1568 /* Allocate aux records for section symbols, to store size and
1571 @@ The 10 is a guess at a plausible maximum number of aux entries
1572 (but shouldn't be a constant). */
1573 amt
= sizeof (combined_entry_type
) * 10;
1574 native
= (combined_entry_type
*) bfd_zalloc (abfd
, amt
);
1578 /* We don't need to set up n_name, n_value, or n_scnum in the native
1579 symbol information, since they'll be overridden by the BFD symbol
1580 anyhow. However, we do need to set the type and storage class,
1581 in case this symbol winds up getting written out. The value 0
1582 for n_numaux is already correct. */
1584 native
->u
.syment
.n_type
= T_NULL
;
1585 native
->u
.syment
.n_sclass
= C_STAT
;
1587 coffsymbol (section
->symbol
)->native
= native
;
1589 coff_set_custom_section_alignment (abfd
, section
,
1590 coff_section_alignment_table
,
1591 coff_section_alignment_table_size
);
1596 #ifdef COFF_ALIGN_IN_SECTION_HEADER
1598 /* Set the alignment of a BFD section. */
1600 static void coff_set_alignment_hook
PARAMS ((bfd
*, asection
*, PTR
));
1603 coff_set_alignment_hook (abfd
, section
, scnhdr
)
1604 bfd
* abfd ATTRIBUTE_UNUSED
;
1608 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1612 /* Extract ALIGN from 2**ALIGN stored in section header. */
1613 for (i
= 0; i
< 32; i
++)
1614 if ((1 << i
) >= hdr
->s_align
)
1618 /* TI tools puts the alignment power in bits 8-11. */
1619 i
= (hdr
->s_flags
>> 8) & 0xF ;
1621 #ifdef COFF_DECODE_ALIGNMENT
1622 i
= COFF_DECODE_ALIGNMENT(hdr
->s_flags
);
1624 section
->alignment_power
= i
;
1626 #ifdef coff_set_section_load_page
1627 coff_set_section_load_page (section
, hdr
->s_page
);
1631 #else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1634 /* A couple of macros to help setting the alignment power field. */
1635 #define ALIGN_SET(field,x,y) \
1636 if (((field) & IMAGE_SCN_ALIGN_64BYTES) == x )\
1638 section->alignment_power = y;\
1641 #define ELIFALIGN_SET(field,x,y) \
1642 else if (( (field) & IMAGE_SCN_ALIGN_64BYTES) == x ) \
1644 section->alignment_power = y;\
1647 static void coff_set_alignment_hook
PARAMS ((bfd
*, asection
*, PTR
));
1650 coff_set_alignment_hook (abfd
, section
, scnhdr
)
1651 bfd
* abfd ATTRIBUTE_UNUSED
;
1655 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1658 ALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_64BYTES
, 6)
1659 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_32BYTES
, 5)
1660 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_16BYTES
, 4)
1661 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_8BYTES
, 3)
1662 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_4BYTES
, 2)
1663 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_2BYTES
, 1)
1664 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_1BYTES
, 0)
1666 /* In a PE image file, the s_paddr field holds the virtual size of a
1667 section, while the s_size field holds the raw size. We also keep
1668 the original section flag value, since not every bit can be
1669 mapped onto a generic BFD section bit. */
1670 if (coff_section_data (abfd
, section
) == NULL
)
1672 amt
= sizeof (struct coff_section_tdata
);
1673 section
->used_by_bfd
= (PTR
) bfd_zalloc (abfd
, amt
);
1674 if (section
->used_by_bfd
== NULL
)
1676 /* FIXME: Return error. */
1680 if (pei_section_data (abfd
, section
) == NULL
)
1682 amt
= sizeof (struct pei_section_tdata
);
1683 coff_section_data (abfd
, section
)->tdata
= (PTR
) bfd_zalloc (abfd
, amt
);
1684 if (coff_section_data (abfd
, section
)->tdata
== NULL
)
1686 /* FIXME: Return error. */
1690 pei_section_data (abfd
, section
)->virt_size
= hdr
->s_paddr
;
1691 pei_section_data (abfd
, section
)->pe_flags
= hdr
->s_flags
;
1693 section
->lma
= hdr
->s_vaddr
;
1695 /* Check for extended relocs. */
1696 if (hdr
->s_flags
& IMAGE_SCN_LNK_NRELOC_OVFL
)
1698 struct external_reloc dst
;
1699 struct internal_reloc n
;
1700 file_ptr oldpos
= bfd_tell (abfd
);
1701 bfd_size_type relsz
= bfd_coff_relsz (abfd
);
1703 bfd_seek (abfd
, (file_ptr
) hdr
->s_relptr
, 0);
1704 if (bfd_bread ((PTR
) &dst
, relsz
, abfd
) != relsz
)
1707 coff_swap_reloc_in (abfd
, &dst
, &n
);
1708 bfd_seek (abfd
, oldpos
, 0);
1709 section
->reloc_count
= hdr
->s_nreloc
= n
.r_vaddr
- 1;
1710 section
->rel_filepos
+= relsz
;
1712 else if (hdr
->s_nreloc
== 0xffff)
1713 (*_bfd_error_handler
)
1714 ("%s: warning: claims to have 0xffff relocs, without overflow",
1715 bfd_get_filename (abfd
));
1718 #undef ELIFALIGN_SET
1720 #else /* ! COFF_WITH_PE */
1723 /* We grossly abuse this function to handle XCOFF overflow headers.
1724 When we see one, we correct the reloc and line number counts in the
1725 real header, and remove the section we just created. */
1727 static void coff_set_alignment_hook
PARAMS ((bfd
*, asection
*, PTR
));
1730 coff_set_alignment_hook (abfd
, section
, scnhdr
)
1735 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1739 if ((hdr
->s_flags
& STYP_OVRFLO
) == 0)
1742 real_sec
= coff_section_from_bfd_index (abfd
, (int) hdr
->s_nreloc
);
1743 if (real_sec
== NULL
)
1746 real_sec
->reloc_count
= hdr
->s_paddr
;
1747 real_sec
->lineno_count
= hdr
->s_vaddr
;
1749 for (ps
= &abfd
->sections
; *ps
!= NULL
; ps
= &(*ps
)->next
)
1753 bfd_section_list_remove (abfd
, ps
);
1754 --abfd
->section_count
;
1760 #else /* ! RS6000COFF_C */
1762 #define coff_set_alignment_hook \
1763 ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void)
1765 #endif /* ! RS6000COFF_C */
1766 #endif /* ! COFF_WITH_PE */
1767 #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
1769 #ifndef coff_mkobject
1771 static bfd_boolean coff_mkobject
PARAMS ((bfd
*));
1774 coff_mkobject (abfd
)
1777 coff_data_type
*coff
;
1778 bfd_size_type amt
= sizeof (coff_data_type
);
1780 abfd
->tdata
.coff_obj_data
= (struct coff_tdata
*) bfd_zalloc (abfd
, amt
);
1781 if (abfd
->tdata
.coff_obj_data
== 0)
1783 coff
= coff_data (abfd
);
1784 coff
->symbols
= (coff_symbol_type
*) NULL
;
1785 coff
->conversion_table
= (unsigned int *) NULL
;
1786 coff
->raw_syments
= (struct coff_ptr_struct
*) NULL
;
1787 coff
->relocbase
= 0;
1788 coff
->local_toc_sym_map
= 0;
1790 /* make_abs_section(abfd);*/
1796 /* Create the COFF backend specific information. */
1798 #ifndef coff_mkobject_hook
1800 coff_mkobject_hook (abfd
, filehdr
, aouthdr
)
1803 PTR aouthdr ATTRIBUTE_UNUSED
;
1805 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1806 coff_data_type
*coff
;
1808 if (! coff_mkobject (abfd
))
1811 coff
= coff_data (abfd
);
1813 coff
->sym_filepos
= internal_f
->f_symptr
;
1815 /* These members communicate important constants about the symbol
1816 table to GDB's symbol-reading code. These `constants'
1817 unfortunately vary among coff implementations... */
1818 coff
->local_n_btmask
= N_BTMASK
;
1819 coff
->local_n_btshft
= N_BTSHFT
;
1820 coff
->local_n_tmask
= N_TMASK
;
1821 coff
->local_n_tshift
= N_TSHIFT
;
1822 coff
->local_symesz
= bfd_coff_symesz (abfd
);
1823 coff
->local_auxesz
= bfd_coff_auxesz (abfd
);
1824 coff
->local_linesz
= bfd_coff_linesz (abfd
);
1826 coff
->timestamp
= internal_f
->f_timdat
;
1828 obj_raw_syment_count (abfd
) =
1829 obj_conv_table_size (abfd
) =
1830 internal_f
->f_nsyms
;
1833 if ((internal_f
->f_flags
& F_SHROBJ
) != 0)
1834 abfd
->flags
|= DYNAMIC
;
1835 if (aouthdr
!= NULL
&& internal_f
->f_opthdr
>= bfd_coff_aoutsz (abfd
))
1837 struct internal_aouthdr
*internal_a
=
1838 (struct internal_aouthdr
*) aouthdr
;
1839 struct xcoff_tdata
*xcoff
;
1841 xcoff
= xcoff_data (abfd
);
1842 # ifdef U803XTOCMAGIC
1843 xcoff
->xcoff64
= internal_f
->f_magic
== U803XTOCMAGIC
;
1847 xcoff
->full_aouthdr
= TRUE
;
1848 xcoff
->toc
= internal_a
->o_toc
;
1849 xcoff
->sntoc
= internal_a
->o_sntoc
;
1850 xcoff
->snentry
= internal_a
->o_snentry
;
1851 bfd_xcoff_text_align_power (abfd
) = internal_a
->o_algntext
;
1852 bfd_xcoff_data_align_power (abfd
) = internal_a
->o_algndata
;
1853 xcoff
->modtype
= internal_a
->o_modtype
;
1854 xcoff
->cputype
= internal_a
->o_cputype
;
1855 xcoff
->maxdata
= internal_a
->o_maxdata
;
1856 xcoff
->maxstack
= internal_a
->o_maxstack
;
1861 /* Set the flags field from the COFF header read in. */
1862 if (! _bfd_coff_arm_set_private_flags (abfd
, internal_f
->f_flags
))
1867 /* FIXME: I'm not sure this is ever executed, since peicode.h
1868 defines coff_mkobject_hook. */
1869 if ((internal_f
->f_flags
& IMAGE_FILE_DEBUG_STRIPPED
) == 0)
1870 abfd
->flags
|= HAS_DEBUG
;
1877 /* Determine the machine architecture and type. FIXME: This is target
1878 dependent because the magic numbers are defined in the target
1879 dependent header files. But there is no particular need for this.
1880 If the magic numbers were moved to a separate file, this function
1881 would be target independent and would also be much more successful
1882 at linking together COFF files for different architectures. */
1885 coff_set_arch_mach_hook (abfd
, filehdr
)
1889 unsigned long machine
;
1890 enum bfd_architecture arch
;
1891 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1893 /* Zero selects the default machine for an arch. */
1895 switch (internal_f
->f_magic
)
1897 #ifdef OR32_MAGIC_BIG
1898 case OR32_MAGIC_BIG
:
1899 case OR32_MAGIC_LITTLE
:
1900 arch
= bfd_arch_or32
;
1905 arch
= bfd_arch_powerpc
;
1911 case I386AIXMAGIC
: /* Danbury PS/2 AIX C Compiler */
1912 case LYNXCOFFMAGIC
: /* shadows the m68k Lynx number below, sigh */
1913 arch
= bfd_arch_i386
;
1918 arch
= bfd_arch_ia64
;
1921 #ifdef A29K_MAGIC_BIG
1922 case A29K_MAGIC_BIG
:
1923 case A29K_MAGIC_LITTLE
:
1924 arch
= bfd_arch_a29k
;
1931 arch
= bfd_arch_arm
;
1932 machine
= bfd_arm_get_mach_from_notes (abfd
, ARM_NOTE_SECTION
);
1933 if (machine
== bfd_mach_arm_unknown
)
1935 switch (internal_f
->f_flags
& F_ARM_ARCHITECTURE_MASK
)
1937 case F_ARM_2
: machine
= bfd_mach_arm_2
; break;
1938 case F_ARM_2a
: machine
= bfd_mach_arm_2a
; break;
1939 case F_ARM_3
: machine
= bfd_mach_arm_3
; break;
1941 case F_ARM_3M
: machine
= bfd_mach_arm_3M
; break;
1942 case F_ARM_4
: machine
= bfd_mach_arm_4
; break;
1943 case F_ARM_4T
: machine
= bfd_mach_arm_4T
; break;
1944 /* The COFF header does not have enough bits available
1945 to cover all the different ARM architectures. So
1946 we interpret F_ARM_5, the highest flag value to mean
1947 "the highest ARM architecture known to BFD" which is
1948 currently the XScale. */
1949 case F_ARM_5
: machine
= bfd_mach_arm_XScale
; break;
1957 #ifdef MC68KBCSMAGIC
1960 #ifdef APOLLOM68KMAGIC
1961 case APOLLOM68KMAGIC
:
1963 #ifdef LYNXCOFFMAGIC
1966 arch
= bfd_arch_m68k
;
1967 machine
= bfd_mach_m68020
;
1974 arch
= bfd_arch_m88k
;
1980 arch
= bfd_arch_z8k
;
1981 switch (internal_f
->f_flags
& F_MACHMASK
)
1984 machine
= bfd_mach_z8001
;
1987 machine
= bfd_mach_z8002
;
1996 arch
= bfd_arch_i860
;
2003 arch
= bfd_arch_i960
;
2004 switch (F_I960TYPE
& internal_f
->f_flags
)
2008 machine
= bfd_mach_i960_core
;
2011 machine
= bfd_mach_i960_kb_sb
;
2014 machine
= bfd_mach_i960_mc
;
2017 machine
= bfd_mach_i960_xa
;
2020 machine
= bfd_mach_i960_ca
;
2023 machine
= bfd_mach_i960_ka_sa
;
2026 machine
= bfd_mach_i960_jx
;
2029 machine
= bfd_mach_i960_hx
;
2048 if (xcoff_data (abfd
)->cputype
!= -1)
2049 cputype
= xcoff_data (abfd
)->cputype
& 0xff;
2052 /* We did not get a value from the a.out header. If the
2053 file has not been stripped, we may be able to get the
2054 architecture information from the first symbol, if it
2055 is a .file symbol. */
2056 if (obj_raw_syment_count (abfd
) == 0)
2061 struct internal_syment sym
;
2062 bfd_size_type amt
= bfd_coff_symesz (abfd
);
2064 buf
= (bfd_byte
*) bfd_malloc (amt
);
2065 if (bfd_seek (abfd
, obj_sym_filepos (abfd
), SEEK_SET
) != 0
2066 || bfd_bread (buf
, amt
, abfd
) != amt
)
2071 bfd_coff_swap_sym_in (abfd
, (PTR
) buf
, (PTR
) &sym
);
2072 if (sym
.n_sclass
== C_FILE
)
2073 cputype
= sym
.n_type
& 0xff;
2080 /* FIXME: We don't handle all cases here. */
2085 arch
= bfd_xcoff_architecture (abfd
);
2086 machine
= bfd_xcoff_machine (abfd
);
2090 arch
= bfd_arch_powerpc
;
2091 machine
= bfd_mach_ppc_601
;
2093 case 2: /* 64 bit PowerPC */
2094 arch
= bfd_arch_powerpc
;
2095 machine
= bfd_mach_ppc_620
;
2098 arch
= bfd_arch_powerpc
;
2099 machine
= bfd_mach_ppc
;
2102 arch
= bfd_arch_rs6000
;
2103 machine
= bfd_mach_rs6k
;
2112 arch
= bfd_arch_we32k
;
2118 arch
= bfd_arch_h8300
;
2119 machine
= bfd_mach_h8300
;
2120 /* !! FIXME this probably isn't the right place for this. */
2121 abfd
->flags
|= BFD_IS_RELAXABLE
;
2127 arch
= bfd_arch_h8300
;
2128 machine
= bfd_mach_h8300h
;
2129 /* !! FIXME this probably isn't the right place for this. */
2130 abfd
->flags
|= BFD_IS_RELAXABLE
;
2136 arch
= bfd_arch_h8300
;
2137 machine
= bfd_mach_h8300s
;
2138 /* !! FIXME this probably isn't the right place for this. */
2139 abfd
->flags
|= BFD_IS_RELAXABLE
;
2145 arch
= bfd_arch_h8300
;
2146 machine
= bfd_mach_h8300hn
;
2147 /* !! FIXME this probably isn't the right place for this. */
2148 abfd
->flags
|= BFD_IS_RELAXABLE
;
2154 arch
= bfd_arch_h8300
;
2155 machine
= bfd_mach_h8300sn
;
2156 /* !! FIXME this probably isn't the right place for this. */
2157 abfd
->flags
|= BFD_IS_RELAXABLE
;
2161 #ifdef SH_ARCH_MAGIC_BIG
2162 case SH_ARCH_MAGIC_BIG
:
2163 case SH_ARCH_MAGIC_LITTLE
:
2165 case SH_ARCH_MAGIC_WINCE
:
2171 #ifdef MIPS_ARCH_MAGIC_WINCE
2172 case MIPS_ARCH_MAGIC_WINCE
:
2173 arch
= bfd_arch_mips
;
2179 arch
= bfd_arch_h8500
;
2185 #ifdef LYNXCOFFMAGIC
2188 arch
= bfd_arch_sparc
;
2194 arch
= bfd_arch_tic30
;
2199 #ifdef TICOFF_TARGET_ARCH
2200 /* This TI COFF section should be used by all new TI COFF v0 targets. */
2202 arch
= TICOFF_TARGET_ARCH
;
2203 machine
= TICOFF_TARGET_MACHINE_GET (internal_f
->f_flags
);
2209 /* This TI COFF section should be used by all new TI COFF v1/2 targets. */
2210 /* TI COFF1 and COFF2 use the target_id field to specify which arch. */
2213 switch (internal_f
->f_target_id
)
2217 arch
= TICOFF_TARGET_ARCH
;
2218 machine
= TICOFF_TARGET_MACHINE_GET (internal_f
->f_flags
);
2222 arch
= bfd_arch_obscure
;
2223 (*_bfd_error_handler
)
2224 (_("Unrecognized TI COFF target id '0x%x'"),
2225 internal_f
->f_target_id
);
2231 #ifdef TIC80_ARCH_MAGIC
2232 case TIC80_ARCH_MAGIC
:
2233 arch
= bfd_arch_tic80
;
2239 arch
= bfd_arch_mcore
;
2245 arch
= bfd_arch_w65
;
2249 default: /* Unreadable input file type. */
2250 arch
= bfd_arch_obscure
;
2254 bfd_default_set_arch_mach (abfd
, arch
, machine
);
2258 #ifdef SYMNAME_IN_DEBUG
2260 static bfd_boolean symname_in_debug_hook
2261 PARAMS ((bfd
*, struct internal_syment
*));
2264 symname_in_debug_hook (abfd
, sym
)
2265 bfd
* abfd ATTRIBUTE_UNUSED
;
2266 struct internal_syment
*sym
;
2268 return SYMNAME_IN_DEBUG (sym
) != 0;
2273 #define symname_in_debug_hook \
2274 (bfd_boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false
2281 #define FORCE_SYMNAMES_IN_STRINGS
2284 /* Handle the csect auxent of a C_EXT or C_HIDEXT symbol. */
2286 static bfd_boolean coff_pointerize_aux_hook
2287 PARAMS ((bfd
*, combined_entry_type
*, combined_entry_type
*,
2288 unsigned int, combined_entry_type
*));
2291 coff_pointerize_aux_hook (abfd
, table_base
, symbol
, indaux
, aux
)
2292 bfd
*abfd ATTRIBUTE_UNUSED
;
2293 combined_entry_type
*table_base
;
2294 combined_entry_type
*symbol
;
2295 unsigned int indaux
;
2296 combined_entry_type
*aux
;
2298 int class = symbol
->u
.syment
.n_sclass
;
2300 if ((class == C_EXT
|| class == C_HIDEXT
)
2301 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2303 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) == XTY_LD
)
2305 aux
->u
.auxent
.x_csect
.x_scnlen
.p
=
2306 table_base
+ aux
->u
.auxent
.x_csect
.x_scnlen
.l
;
2307 aux
->fix_scnlen
= 1;
2310 /* Return TRUE to indicate that the caller should not do any
2311 further work on this auxent. */
2315 /* Return FALSE to indicate that this auxent should be handled by
2323 /* We don't want to pointerize bal entries. */
2325 static bfd_boolean coff_pointerize_aux_hook
2326 PARAMS ((bfd
*, combined_entry_type
*, combined_entry_type
*,
2327 unsigned int, combined_entry_type
*));
2330 coff_pointerize_aux_hook (abfd
, table_base
, symbol
, indaux
, aux
)
2331 bfd
*abfd ATTRIBUTE_UNUSED
;
2332 combined_entry_type
*table_base ATTRIBUTE_UNUSED
;
2333 combined_entry_type
*symbol
;
2334 unsigned int indaux
;
2335 combined_entry_type
*aux ATTRIBUTE_UNUSED
;
2337 /* Return TRUE if we don't want to pointerize this aux entry, which
2338 is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */
2340 && (symbol
->u
.syment
.n_sclass
== C_LEAFPROC
2341 || symbol
->u
.syment
.n_sclass
== C_LEAFSTAT
2342 || symbol
->u
.syment
.n_sclass
== C_LEAFEXT
));
2347 #define coff_pointerize_aux_hook 0
2350 #endif /* ! RS6000COFF_C */
2352 /* Print an aux entry. This returns TRUE if it has printed it. */
2354 static bfd_boolean coff_print_aux
2355 PARAMS ((bfd
*, FILE *, combined_entry_type
*, combined_entry_type
*,
2356 combined_entry_type
*, unsigned int));
2359 coff_print_aux (abfd
, file
, table_base
, symbol
, aux
, indaux
)
2360 bfd
*abfd ATTRIBUTE_UNUSED
;
2361 FILE *file ATTRIBUTE_UNUSED
;
2362 combined_entry_type
*table_base ATTRIBUTE_UNUSED
;
2363 combined_entry_type
*symbol ATTRIBUTE_UNUSED
;
2364 combined_entry_type
*aux ATTRIBUTE_UNUSED
;
2365 unsigned int indaux ATTRIBUTE_UNUSED
;
2368 if ((symbol
->u
.syment
.n_sclass
== C_EXT
2369 || symbol
->u
.syment
.n_sclass
== C_HIDEXT
)
2370 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2372 /* This is a csect entry. */
2373 fprintf (file
, "AUX ");
2374 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) != XTY_LD
)
2376 BFD_ASSERT (! aux
->fix_scnlen
);
2378 fprintf (file
, "val %5lld", aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2380 fprintf (file
, "val %5ld", (long) aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2385 fprintf (file
, "indx ");
2386 if (! aux
->fix_scnlen
)
2388 fprintf (file
, "%4lld", aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2390 fprintf (file
, "%4ld", (long) aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2393 fprintf (file
, "%4ld",
2394 (long) (aux
->u
.auxent
.x_csect
.x_scnlen
.p
- table_base
));
2397 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2398 aux
->u
.auxent
.x_csect
.x_parmhash
,
2399 (unsigned int) aux
->u
.auxent
.x_csect
.x_snhash
,
2400 SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
),
2401 SMTYP_ALIGN (aux
->u
.auxent
.x_csect
.x_smtyp
),
2402 (unsigned int) aux
->u
.auxent
.x_csect
.x_smclas
,
2403 aux
->u
.auxent
.x_csect
.x_stab
,
2404 (unsigned int) aux
->u
.auxent
.x_csect
.x_snstab
);
2409 /* Return FALSE to indicate that no special action was taken. */
2417 To write relocations, the back end steps though the
2418 canonical relocation table and create an
2419 @code{internal_reloc}. The symbol index to use is removed from
2420 the @code{offset} field in the symbol table supplied. The
2421 address comes directly from the sum of the section base
2422 address and the relocation offset; the type is dug directly
2423 from the howto field. Then the @code{internal_reloc} is
2424 swapped into the shape of an @code{external_reloc} and written
2431 static int compare_arelent_ptr
PARAMS ((const PTR
, const PTR
));
2433 /* AUX's ld wants relocations to be sorted. */
2435 compare_arelent_ptr (x
, y
)
2439 const arelent
**a
= (const arelent
**) x
;
2440 const arelent
**b
= (const arelent
**) y
;
2441 bfd_size_type aadr
= (*a
)->address
;
2442 bfd_size_type badr
= (*b
)->address
;
2444 return (aadr
< badr
? -1 : badr
< aadr
? 1 : 0);
2447 #endif /* TARG_AUX */
2450 coff_write_relocs (abfd
, first_undef
)
2456 for (s
= abfd
->sections
; s
!= (asection
*) NULL
; s
= s
->next
)
2459 struct external_reloc dst
;
2466 /* Sort relocations before we write them out. */
2469 amt
= s
->reloc_count
;
2470 amt
*= sizeof (arelent
*);
2471 p
= (arelent
**) bfd_malloc (amt
);
2472 if (p
== NULL
&& s
->reloc_count
> 0)
2474 memcpy (p
, s
->orelocation
, (size_t) amt
);
2475 qsort (p
, s
->reloc_count
, sizeof (arelent
*), compare_arelent_ptr
);
2479 if (bfd_seek (abfd
, s
->rel_filepos
, SEEK_SET
) != 0)
2483 if (obj_pe (abfd
) && s
->reloc_count
>= 0xffff)
2485 /* Encode real count here as first reloc. */
2486 struct internal_reloc n
;
2488 memset ((PTR
) & n
, 0, sizeof (n
));
2489 /* Add one to count *this* reloc (grr). */
2490 n
.r_vaddr
= s
->reloc_count
+ 1;
2491 coff_swap_reloc_out (abfd
, &n
, &dst
);
2492 if (bfd_bwrite ((PTR
) & dst
, (bfd_size_type
) bfd_coff_relsz (abfd
),
2493 abfd
) != bfd_coff_relsz (abfd
))
2498 for (i
= 0; i
< s
->reloc_count
; i
++)
2500 struct internal_reloc n
;
2503 memset ((PTR
) & n
, 0, sizeof (n
));
2505 /* Now we've renumbered the symbols we know where the
2506 undefined symbols live in the table. Check the reloc
2507 entries for symbols who's output bfd isn't the right one.
2508 This is because the symbol was undefined (which means
2509 that all the pointers are never made to point to the same
2510 place). This is a bad thing,'cause the symbols attached
2511 to the output bfd are indexed, so that the relocation
2512 entries know which symbol index they point to. So we
2513 have to look up the output symbol here. */
2515 if (q
->sym_ptr_ptr
[0]->the_bfd
!= abfd
)
2518 const char *sname
= q
->sym_ptr_ptr
[0]->name
;
2519 asymbol
**outsyms
= abfd
->outsymbols
;
2521 for (j
= first_undef
; outsyms
[j
]; j
++)
2523 const char *intable
= outsyms
[j
]->name
;
2525 if (strcmp (intable
, sname
) == 0) {
2526 /* Got a hit, so repoint the reloc. */
2527 q
->sym_ptr_ptr
= outsyms
+ j
;
2533 n
.r_vaddr
= q
->address
+ s
->vma
;
2536 /* The 29k const/consth reloc pair is a real kludge. The consth
2537 part doesn't have a symbol; it has an offset. So rebuilt
2539 if (q
->howto
->type
== R_IHCONST
)
2540 n
.r_symndx
= q
->addend
;
2545 #ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P
2546 if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q
,s
))
2548 if ((*q
->sym_ptr_ptr
)->section
== bfd_abs_section_ptr
2549 && ((*q
->sym_ptr_ptr
)->flags
& BSF_SECTION_SYM
) != 0)
2551 /* This is a relocation relative to the absolute symbol. */
2555 n
.r_symndx
= get_index ((*(q
->sym_ptr_ptr
)));
2556 /* Take notice if the symbol reloc points to a symbol
2557 we don't have in our symbol table. What should we
2559 if (n
.r_symndx
> obj_conv_table_size (abfd
))
2564 #ifdef SWAP_OUT_RELOC_OFFSET
2565 n
.r_offset
= q
->addend
;
2569 /* Work out reloc type from what is required. */
2570 SELECT_RELOC (n
, q
->howto
);
2572 n
.r_type
= q
->howto
->type
;
2574 coff_swap_reloc_out (abfd
, &n
, &dst
);
2576 if (bfd_bwrite ((PTR
) & dst
, (bfd_size_type
) bfd_coff_relsz (abfd
),
2577 abfd
) != bfd_coff_relsz (abfd
))
2590 /* Set flags and magic number of a coff file from architecture and machine
2591 type. Result is TRUE if we can represent the arch&type, FALSE if not. */
2594 coff_set_flags (abfd
, magicp
, flagsp
)
2596 unsigned int *magicp ATTRIBUTE_UNUSED
;
2597 unsigned short *flagsp ATTRIBUTE_UNUSED
;
2599 switch (bfd_get_arch (abfd
))
2604 switch (bfd_get_mach (abfd
))
2606 case bfd_mach_z8001
:
2609 case bfd_mach_z8002
:
2623 *magicp
= I960ROMAGIC
;
2625 ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC :
2626 I960RWMAGIC); FIXME???
2628 switch (bfd_get_mach (abfd
))
2630 case bfd_mach_i960_core
:
2633 case bfd_mach_i960_kb_sb
:
2636 case bfd_mach_i960_mc
:
2639 case bfd_mach_i960_xa
:
2642 case bfd_mach_i960_ca
:
2645 case bfd_mach_i960_ka_sa
:
2648 case bfd_mach_i960_jx
:
2651 case bfd_mach_i960_hx
:
2664 case bfd_arch_tic30
:
2665 *magicp
= TIC30MAGIC
;
2669 #ifdef TICOFF_DEFAULT_MAGIC
2670 case TICOFF_TARGET_ARCH
:
2671 /* If there's no indication of which version we want, use the default. */
2673 *magicp
= TICOFF_DEFAULT_MAGIC
;
2676 /* We may want to output in a different COFF version. */
2677 switch (abfd
->xvec
->name
[4])
2680 *magicp
= TICOFF0MAGIC
;
2683 *magicp
= TICOFF1MAGIC
;
2686 *magicp
= TICOFF2MAGIC
;
2692 TICOFF_TARGET_MACHINE_SET (flagsp
, bfd_get_mach (abfd
));
2696 #ifdef TIC80_ARCH_MAGIC
2697 case bfd_arch_tic80
:
2698 *magicp
= TIC80_ARCH_MAGIC
;
2704 * magicp
= ARMPEMAGIC
;
2706 * magicp
= ARMMAGIC
;
2709 if (APCS_SET (abfd
))
2711 if (APCS_26_FLAG (abfd
))
2712 * flagsp
|= F_APCS26
;
2714 if (APCS_FLOAT_FLAG (abfd
))
2715 * flagsp
|= F_APCS_FLOAT
;
2717 if (PIC_FLAG (abfd
))
2720 if (INTERWORK_SET (abfd
) && INTERWORK_FLAG (abfd
))
2721 * flagsp
|= F_INTERWORK
;
2722 switch (bfd_get_mach (abfd
))
2724 case bfd_mach_arm_2
: * flagsp
|= F_ARM_2
; break;
2725 case bfd_mach_arm_2a
: * flagsp
|= F_ARM_2a
; break;
2726 case bfd_mach_arm_3
: * flagsp
|= F_ARM_3
; break;
2727 case bfd_mach_arm_3M
: * flagsp
|= F_ARM_3M
; break;
2728 case bfd_mach_arm_4
: * flagsp
|= F_ARM_4
; break;
2729 case bfd_mach_arm_4T
: * flagsp
|= F_ARM_4T
; break;
2730 case bfd_mach_arm_5
: * flagsp
|= F_ARM_5
; break;
2731 /* FIXME: we do not have F_ARM vaues greater than F_ARM_5.
2732 See also the comment in coff_set_arch_mach_hook(). */
2733 case bfd_mach_arm_5T
: * flagsp
|= F_ARM_5
; break;
2734 case bfd_mach_arm_5TE
: * flagsp
|= F_ARM_5
; break;
2735 case bfd_mach_arm_XScale
: * flagsp
|= F_ARM_5
; break;
2740 case bfd_arch_powerpc
:
2747 *magicp
= I386MAGIC
;
2749 /* Just overwrite the usual value if we're doing Lynx. */
2750 *magicp
= LYNXCOFFMAGIC
;
2757 *magicp
= I860MAGIC
;
2763 *magicp
= IA64MAGIC
;
2769 #ifdef APOLLOM68KMAGIC
2770 *magicp
= APOLLO_COFF_VERSION_NUMBER
;
2772 /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */
2773 #ifdef NAMES_HAVE_UNDERSCORE
2774 *magicp
= MC68KBCSMAGIC
;
2776 *magicp
= MC68MAGIC
;
2780 /* Just overwrite the usual value if we're doing Lynx. */
2781 *magicp
= LYNXCOFFMAGIC
;
2789 *magicp
= MC88OMAGIC
;
2794 case bfd_arch_h8300
:
2795 switch (bfd_get_mach (abfd
))
2797 case bfd_mach_h8300
:
2798 *magicp
= H8300MAGIC
;
2800 case bfd_mach_h8300h
:
2801 *magicp
= H8300HMAGIC
;
2803 case bfd_mach_h8300s
:
2804 *magicp
= H8300SMAGIC
;
2806 case bfd_mach_h8300hn
:
2807 *magicp
= H8300HNMAGIC
;
2809 case bfd_mach_h8300sn
:
2810 *magicp
= H8300SNMAGIC
;
2816 #ifdef SH_ARCH_MAGIC_BIG
2818 #ifdef COFF_IMAGE_WITH_PE
2819 *magicp
= SH_ARCH_MAGIC_WINCE
;
2821 if (bfd_big_endian (abfd
))
2822 *magicp
= SH_ARCH_MAGIC_BIG
;
2824 *magicp
= SH_ARCH_MAGIC_LITTLE
;
2830 #ifdef MIPS_ARCH_MAGIC_WINCE
2832 *magicp
= MIPS_ARCH_MAGIC_WINCE
;
2838 case bfd_arch_sparc
:
2839 *magicp
= SPARCMAGIC
;
2841 /* Just overwrite the usual value if we're doing Lynx. */
2842 *magicp
= LYNXCOFFMAGIC
;
2849 case bfd_arch_h8500
:
2850 *magicp
= H8500MAGIC
;
2854 #ifdef A29K_MAGIC_BIG
2856 if (bfd_big_endian (abfd
))
2857 *magicp
= A29K_MAGIC_BIG
;
2859 *magicp
= A29K_MAGIC_LITTLE
;
2865 case bfd_arch_we32k
:
2866 *magicp
= WE32KMAGIC
;
2872 case bfd_arch_rs6000
:
2874 case bfd_arch_powerpc
:
2876 BFD_ASSERT (bfd_get_flavour (abfd
) == bfd_target_xcoff_flavour
);
2877 *magicp
= bfd_xcoff_magic_number (abfd
);
2883 case bfd_arch_mcore
:
2884 * magicp
= MCOREMAGIC
;
2894 #ifdef OR32_MAGIC_BIG
2896 if (bfd_big_endian (abfd
))
2897 * magicp
= OR32_MAGIC_BIG
;
2899 * magicp
= OR32_MAGIC_LITTLE
;
2903 default: /* Unknown architecture. */
2904 /* Fall through to "return FALSE" below, to avoid
2905 "statement never reached" errors on the one below. */
2913 coff_set_arch_mach (abfd
, arch
, machine
)
2915 enum bfd_architecture arch
;
2916 unsigned long machine
;
2919 unsigned short dummy2
;
2921 if (! bfd_default_set_arch_mach (abfd
, arch
, machine
))
2924 if (arch
!= bfd_arch_unknown
2925 && ! coff_set_flags (abfd
, &dummy1
, &dummy2
))
2926 return FALSE
; /* We can't represent this type */
2928 return TRUE
; /* We're easy ... */
2931 #ifdef COFF_IMAGE_WITH_PE
2933 /* This is used to sort sections by VMA, as required by PE image
2936 static int sort_by_secaddr
PARAMS ((const PTR
, const PTR
));
2939 sort_by_secaddr (arg1
, arg2
)
2943 const asection
*a
= *(const asection
**) arg1
;
2944 const asection
*b
= *(const asection
**) arg2
;
2946 if (a
->vma
< b
->vma
)
2948 else if (a
->vma
> b
->vma
)
2954 #endif /* COFF_IMAGE_WITH_PE */
2956 /* Calculate the file position for each section. */
2959 #define ALIGN_SECTIONS_IN_FILE
2961 #if defined(TIC80COFF) || defined(TICOFF)
2962 #undef ALIGN_SECTIONS_IN_FILE
2966 coff_compute_section_file_positions (abfd
)
2970 asection
*previous
= (asection
*) NULL
;
2971 file_ptr sofar
= bfd_coff_filhsz (abfd
);
2972 bfd_boolean align_adjust
;
2973 #ifdef ALIGN_SECTIONS_IN_FILE
2978 /* On XCOFF, if we have symbols, set up the .debug section. */
2979 if (bfd_get_symcount (abfd
) > 0)
2982 bfd_size_type i
, symcount
;
2986 symcount
= bfd_get_symcount (abfd
);
2987 for (symp
= abfd
->outsymbols
, i
= 0; i
< symcount
; symp
++, i
++)
2989 coff_symbol_type
*cf
;
2991 cf
= coff_symbol_from (abfd
, *symp
);
2993 && cf
->native
!= NULL
2994 && SYMNAME_IN_DEBUG (&cf
->native
->u
.syment
))
2998 len
= strlen (bfd_asymbol_name (*symp
));
2999 if (len
> SYMNMLEN
|| bfd_coff_force_symnames_in_strings (abfd
))
3000 sz
+= len
+ 1 + bfd_coff_debug_string_prefix_length (abfd
);
3007 dsec
= bfd_make_section_old_way (abfd
, ".debug");
3010 dsec
->_raw_size
= sz
;
3011 dsec
->flags
|= SEC_HAS_CONTENTS
;
3016 #ifdef COFF_IMAGE_WITH_PE
3018 if (coff_data (abfd
)->link_info
)
3020 page_size
= pe_data (abfd
)->pe_opthdr
.FileAlignment
;
3022 /* If no file alignment has been set, default to one.
3023 This repairs 'ld -r' for arm-wince-pe target. */
3028 page_size
= PE_DEF_FILE_ALIGNMENT
;
3030 #ifdef COFF_PAGE_SIZE
3031 int page_size
= COFF_PAGE_SIZE
;
3035 if (bfd_get_start_address (abfd
))
3037 /* A start address may have been added to the original file. In this
3038 case it will need an optional header to record it. */
3039 abfd
->flags
|= EXEC_P
;
3042 if (abfd
->flags
& EXEC_P
)
3043 sofar
+= bfd_coff_aoutsz (abfd
);
3045 else if (xcoff_data (abfd
)->full_aouthdr
)
3046 sofar
+= bfd_coff_aoutsz (abfd
);
3048 sofar
+= SMALL_AOUTSZ
;
3051 sofar
+= abfd
->section_count
* bfd_coff_scnhsz (abfd
);
3054 /* XCOFF handles overflows in the reloc and line number count fields
3055 by allocating a new section header to hold the correct counts. */
3056 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3057 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3058 sofar
+= bfd_coff_scnhsz (abfd
);
3061 #ifdef COFF_IMAGE_WITH_PE
3063 /* PE requires the sections to be in memory order when listed in
3064 the section headers. It also does not like empty loadable
3065 sections. The sections apparently do not have to be in the
3066 right order in the image file itself, but we do need to get the
3067 target_index values right. */
3070 asection
**section_list
;
3076 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3079 /* We allocate an extra cell to simplify the final loop. */
3080 amt
= sizeof (struct asection
*) * (count
+ 1);
3081 section_list
= bfd_malloc (amt
);
3082 if (section_list
== NULL
)
3086 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3088 section_list
[i
] = current
;
3091 section_list
[i
] = NULL
;
3093 qsort (section_list
, count
, sizeof (asection
*), sort_by_secaddr
);
3095 /* Rethread the linked list into sorted order; at the same time,
3096 assign target_index values. */
3098 abfd
->sections
= section_list
[0];
3099 for (i
= 0; i
< count
; i
++)
3101 current
= section_list
[i
];
3102 current
->next
= section_list
[i
+ 1];
3104 /* Later, if the section has zero size, we'll be throwing it
3105 away, so we don't want to number it now. Note that having
3106 a zero size and having real contents are different
3107 concepts: .bss has no contents, but (usually) non-zero
3109 if (current
->_raw_size
== 0)
3111 /* Discard. However, it still might have (valid) symbols
3112 in it, so arbitrarily set it to section 1 (indexing is
3113 1-based here; usually .text). __end__ and other
3114 contents of .endsection really have this happen.
3115 FIXME: This seems somewhat dubious. */
3116 current
->target_index
= 1;
3119 current
->target_index
= target_index
++;
3121 abfd
->section_tail
= ¤t
->next
;
3123 free (section_list
);
3125 #else /* ! COFF_IMAGE_WITH_PE */
3127 /* Set the target_index field. */
3131 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3132 current
->target_index
= target_index
++;
3134 #endif /* ! COFF_IMAGE_WITH_PE */
3136 align_adjust
= FALSE
;
3137 for (current
= abfd
->sections
;
3138 current
!= (asection
*) NULL
;
3139 current
= current
->next
)
3141 #ifdef COFF_IMAGE_WITH_PE
3142 /* With PE we have to pad each section to be a multiple of its
3143 page size too, and remember both sizes. */
3144 if (coff_section_data (abfd
, current
) == NULL
)
3146 bfd_size_type amt
= sizeof (struct coff_section_tdata
);
3147 current
->used_by_bfd
= (PTR
) bfd_zalloc (abfd
, amt
);
3148 if (current
->used_by_bfd
== NULL
)
3151 if (pei_section_data (abfd
, current
) == NULL
)
3153 bfd_size_type amt
= sizeof (struct pei_section_tdata
);
3154 coff_section_data (abfd
, current
)->tdata
3155 = (PTR
) bfd_zalloc (abfd
, amt
);
3156 if (coff_section_data (abfd
, current
)->tdata
== NULL
)
3159 if (pei_section_data (abfd
, current
)->virt_size
== 0)
3160 pei_section_data (abfd
, current
)->virt_size
= current
->_raw_size
;
3163 /* Only deal with sections which have contents. */
3164 if (!(current
->flags
& SEC_HAS_CONTENTS
))
3167 #ifdef COFF_IMAGE_WITH_PE
3168 /* Make sure we skip empty sections in a PE image. */
3169 if (current
->_raw_size
== 0)
3173 /* Align the sections in the file to the same boundary on
3174 which they are aligned in virtual memory. I960 doesn't
3175 do this (FIXME) so we can stay in sync with Intel. 960
3176 doesn't yet page from files... */
3177 #ifdef ALIGN_SECTIONS_IN_FILE
3178 if ((abfd
->flags
& EXEC_P
) != 0)
3180 /* Make sure this section is aligned on the right boundary - by
3181 padding the previous section up if necessary. */
3185 /* AIX loader checks the text section alignment of (vma - filepos)
3186 So even though the filepos may be aligned wrt the o_algntext, for
3187 AIX executables, this check fails. This shows up when a native
3188 AIX executable is stripped with gnu strip because the default vma
3189 of native is 0x10000150 but default for gnu is 0x10000140. Gnu
3190 stripped gnu excutable passes this check because the filepos is
3191 0x0140. This problem also show up with 64 bit shared objects. The
3192 data section must also be aligned. */
3193 if (!strcmp (current
->name
, _TEXT
)
3194 || !strcmp (current
->name
, _DATA
))
3199 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
3201 align
= 1 << current
->alignment_power
;
3202 pad
= abs (current
->vma
- sofar
) % align
;
3213 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
3216 if (previous
!= (asection
*) NULL
)
3217 previous
->_raw_size
+= sofar
- old_sofar
;
3222 /* In demand paged files the low order bits of the file offset
3223 must match the low order bits of the virtual address. */
3224 #ifdef COFF_PAGE_SIZE
3225 if ((abfd
->flags
& D_PAGED
) != 0
3226 && (current
->flags
& SEC_ALLOC
) != 0)
3227 sofar
+= (current
->vma
- sofar
) % page_size
;
3229 current
->filepos
= sofar
;
3231 #ifdef COFF_IMAGE_WITH_PE
3232 /* Set the padded size. */
3233 current
->_raw_size
= (current
->_raw_size
+ page_size
-1) & -page_size
;
3236 sofar
+= current
->_raw_size
;
3238 #ifdef ALIGN_SECTIONS_IN_FILE
3239 /* Make sure that this section is of the right size too. */
3240 if ((abfd
->flags
& EXEC_P
) == 0)
3242 bfd_size_type old_size
;
3244 old_size
= current
->_raw_size
;
3245 current
->_raw_size
= BFD_ALIGN (current
->_raw_size
,
3246 1 << current
->alignment_power
);
3247 align_adjust
= current
->_raw_size
!= old_size
;
3248 sofar
+= current
->_raw_size
- old_size
;
3253 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
3254 align_adjust
= sofar
!= old_sofar
;
3255 current
->_raw_size
+= sofar
- old_sofar
;
3259 #ifdef COFF_IMAGE_WITH_PE
3260 /* For PE we need to make sure we pad out to the aligned
3261 _raw_size, in case the caller only writes out data to the
3262 unaligned _raw_size. */
3263 if (pei_section_data (abfd
, current
)->virt_size
< current
->_raw_size
)
3264 align_adjust
= TRUE
;
3268 /* Force .lib sections to start at zero. The vma is then
3269 incremented in coff_set_section_contents. This is right for
3271 if (strcmp (current
->name
, _LIB
) == 0)
3272 bfd_set_section_vma (abfd
, current
, 0);
3278 /* It is now safe to write to the output file. If we needed an
3279 alignment adjustment for the last section, then make sure that
3280 there is a byte at offset sofar. If there are no symbols and no
3281 relocs, then nothing follows the last section. If we don't force
3282 the last byte out, then the file may appear to be truncated. */
3288 if (bfd_seek (abfd
, sofar
- 1, SEEK_SET
) != 0
3289 || bfd_bwrite (&b
, (bfd_size_type
) 1, abfd
) != 1)
3293 /* Make sure the relocations are aligned. We don't need to make
3294 sure that this byte exists, because it will only matter if there
3295 really are relocs. */
3296 sofar
= BFD_ALIGN (sofar
, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER
);
3298 obj_relocbase (abfd
) = sofar
;
3299 abfd
->output_has_begun
= TRUE
;
3306 /* This can never work, because it is called too late--after the
3307 section positions have been set. I can't figure out what it is
3308 for, so I am going to disable it--Ian Taylor 20 March 1996. */
3310 /* If .file, .text, .data, .bss symbols are missing, add them. */
3311 /* @@ Should we only be adding missing symbols, or overriding the aux
3312 values for existing section symbols? */
3314 coff_add_missing_symbols (abfd
)
3317 unsigned int nsyms
= bfd_get_symcount (abfd
);
3318 asymbol
**sympp
= abfd
->outsymbols
;
3321 int need_text
= 1, need_data
= 1, need_bss
= 1, need_file
= 1;
3324 for (i
= 0; i
< nsyms
; i
++)
3326 coff_symbol_type
*csym
= coff_symbol_from (abfd
, sympp
[i
]);
3331 /* Only do this if there is a coff representation of the input
3333 if (csym
->native
&& csym
->native
->u
.syment
.n_sclass
== C_FILE
)
3338 name
= csym
->symbol
.name
;
3341 if (!strcmp (name
, _TEXT
))
3344 else if (!strcmp (name
, ".wtext"))
3347 else if (!strcmp (name
, _DATA
))
3349 else if (!strcmp (name
, _BSS
))
3353 /* Now i == bfd_get_symcount (abfd). */
3354 /* @@ For now, don't deal with .file symbol. */
3357 if (!need_text
&& !need_data
&& !need_bss
&& !need_file
)
3359 nsyms
+= need_text
+ need_data
+ need_bss
+ need_file
;
3361 amt
*= sizeof (asymbol
*);
3362 sympp2
= (asymbol
**) bfd_alloc (abfd
, amt
);
3365 memcpy (sympp2
, sympp
, i
* sizeof (asymbol
*));
3368 /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */
3372 sympp2
[i
++] = coff_section_symbol (abfd
, _TEXT
);
3374 sympp2
[i
++] = coff_section_symbol (abfd
, _DATA
);
3376 sympp2
[i
++] = coff_section_symbol (abfd
, _BSS
);
3377 BFD_ASSERT (i
== nsyms
);
3378 bfd_set_symtab (abfd
, sympp2
, nsyms
);
3384 #ifdef COFF_IMAGE_WITH_PE
3386 static unsigned int pelength
;
3387 static unsigned int peheader
;
3390 coff_read_word (abfd
, value
)
3392 unsigned int *value
;
3397 status
= bfd_bread (b
, (bfd_size_type
) 2, abfd
);
3405 *value
= (unsigned int) b
[0];
3407 *value
= (unsigned int) (b
[0] + (b
[1] << 8));
3409 pelength
+= (unsigned int) status
;
3415 coff_compute_checksum (abfd
)
3418 bfd_boolean more_data
;
3425 filepos
= (file_ptr
) 0;
3429 if (bfd_seek (abfd
, filepos
, SEEK_SET
) != 0)
3432 more_data
= coff_read_word (abfd
, &value
);
3434 total
= 0xffff & (total
+ (total
>> 0x10));
3439 return (0xffff & (total
+ (total
>> 0x10)));
3443 coff_apply_checksum (abfd
)
3446 unsigned int computed
;
3447 unsigned int checksum
= 0;
3449 if (bfd_seek (abfd
, 0x3c, SEEK_SET
) != 0)
3452 if (!coff_read_word (abfd
, &peheader
))
3455 if (bfd_seek (abfd
, peheader
+ 0x58, SEEK_SET
) != 0)
3459 bfd_bwrite (&checksum
, (bfd_size_type
) 4, abfd
);
3461 if (bfd_seek (abfd
, peheader
, SEEK_SET
) != 0)
3464 computed
= coff_compute_checksum (abfd
);
3466 checksum
= computed
+ pelength
;
3468 if (bfd_seek (abfd
, peheader
+ 0x58, SEEK_SET
) != 0)
3471 bfd_bwrite (&checksum
, (bfd_size_type
) 4, abfd
);
3476 #endif /* COFF_IMAGE_WITH_PE */
3481 coff_write_object_contents (abfd
)
3485 bfd_boolean hasrelocs
= FALSE
;
3486 bfd_boolean haslinno
= FALSE
;
3487 bfd_boolean hasdebug
= FALSE
;
3489 file_ptr reloc_base
;
3490 file_ptr lineno_base
;
3492 unsigned long reloc_size
= 0, reloc_count
= 0;
3493 unsigned long lnno_size
= 0;
3494 bfd_boolean long_section_names
;
3495 asection
*text_sec
= NULL
;
3496 asection
*data_sec
= NULL
;
3497 asection
*bss_sec
= NULL
;
3498 struct internal_filehdr internal_f
;
3499 struct internal_aouthdr internal_a
;
3500 #ifdef COFF_LONG_SECTION_NAMES
3501 size_t string_size
= STRING_SIZE_SIZE
;
3504 bfd_set_error (bfd_error_system_call
);
3506 /* Make a pass through the symbol table to count line number entries and
3507 put them into the correct asections. */
3509 lnno_size
= coff_count_linenumbers (abfd
) * bfd_coff_linesz (abfd
);
3511 if (! abfd
->output_has_begun
)
3513 if (! coff_compute_section_file_positions (abfd
))
3517 reloc_base
= obj_relocbase (abfd
);
3519 /* Work out the size of the reloc and linno areas. */
3521 for (current
= abfd
->sections
; current
!= NULL
; current
=
3525 /* We store the actual reloc count in the first reloc's addr. */
3526 if (obj_pe (abfd
) && current
->reloc_count
>= 0xffff)
3529 reloc_count
+= current
->reloc_count
;
3532 reloc_size
= reloc_count
* bfd_coff_relsz (abfd
);
3534 lineno_base
= reloc_base
+ reloc_size
;
3535 sym_base
= lineno_base
+ lnno_size
;
3537 /* Indicate in each section->line_filepos its actual file address. */
3538 for (current
= abfd
->sections
; current
!= NULL
; current
=
3541 if (current
->lineno_count
)
3543 current
->line_filepos
= lineno_base
;
3544 current
->moving_line_filepos
= lineno_base
;
3545 lineno_base
+= current
->lineno_count
* bfd_coff_linesz (abfd
);
3549 current
->line_filepos
= 0;
3551 if (current
->reloc_count
)
3553 current
->rel_filepos
= reloc_base
;
3554 reloc_base
+= current
->reloc_count
* bfd_coff_relsz (abfd
);
3556 /* Extra reloc to hold real count. */
3557 if (obj_pe (abfd
) && current
->reloc_count
>= 0xffff)
3558 reloc_base
+= bfd_coff_relsz (abfd
);
3563 current
->rel_filepos
= 0;
3567 /* Write section headers to the file. */
3568 internal_f
.f_nscns
= 0;
3570 if ((abfd
->flags
& EXEC_P
) != 0)
3571 scn_base
= bfd_coff_filhsz (abfd
) + bfd_coff_aoutsz (abfd
);
3574 scn_base
= bfd_coff_filhsz (abfd
);
3577 if (xcoff_data (abfd
)->full_aouthdr
)
3578 scn_base
+= bfd_coff_aoutsz (abfd
);
3580 scn_base
+= SMALL_AOUTSZ
;
3585 if (bfd_seek (abfd
, scn_base
, SEEK_SET
) != 0)
3588 long_section_names
= FALSE
;
3589 for (current
= abfd
->sections
;
3591 current
= current
->next
)
3593 struct internal_scnhdr section
;
3594 bfd_boolean is_reloc_section
= FALSE
;
3596 #ifdef COFF_IMAGE_WITH_PE
3597 if (strcmp (current
->name
, ".reloc") == 0)
3599 is_reloc_section
= TRUE
;
3601 pe_data (abfd
)->has_reloc_section
= 1;
3605 internal_f
.f_nscns
++;
3607 strncpy (section
.s_name
, current
->name
, SCNNMLEN
);
3609 #ifdef COFF_LONG_SECTION_NAMES
3610 /* Handle long section names as in PE. This must be compatible
3611 with the code in coff_write_symbols and _bfd_coff_final_link. */
3615 len
= strlen (current
->name
);
3618 memset (section
.s_name
, 0, SCNNMLEN
);
3619 sprintf (section
.s_name
, "/%lu", (unsigned long) string_size
);
3620 string_size
+= len
+ 1;
3621 long_section_names
= TRUE
;
3627 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3628 Ian Taylor <ian@cygnus.com>. */
3629 if (strcmp (current
->name
, _LIB
) == 0)
3630 section
.s_vaddr
= 0;
3633 section
.s_vaddr
= current
->vma
;
3634 section
.s_paddr
= current
->lma
;
3635 section
.s_size
= current
->_raw_size
;
3636 #ifdef coff_get_section_load_page
3637 section
.s_page
= coff_get_section_load_page (current
);
3641 section
.s_paddr
= 0;
3643 #ifdef COFF_IMAGE_WITH_PE
3644 /* Reminder: s_paddr holds the virtual size of the section. */
3645 if (coff_section_data (abfd
, current
) != NULL
3646 && pei_section_data (abfd
, current
) != NULL
)
3647 section
.s_paddr
= pei_section_data (abfd
, current
)->virt_size
;
3649 section
.s_paddr
= 0;
3652 /* If this section has no size or is unloadable then the scnptr
3654 if (current
->_raw_size
== 0 ||
3655 (current
->flags
& (SEC_LOAD
| SEC_HAS_CONTENTS
)) == 0)
3656 section
.s_scnptr
= 0;
3658 section
.s_scnptr
= current
->filepos
;
3660 section
.s_relptr
= current
->rel_filepos
;
3661 section
.s_lnnoptr
= current
->line_filepos
;
3662 section
.s_nreloc
= current
->reloc_count
;
3663 section
.s_nlnno
= current
->lineno_count
;
3664 #ifndef COFF_IMAGE_WITH_PE
3665 /* In PEI, relocs come in the .reloc section. */
3666 if (current
->reloc_count
!= 0)
3669 if (current
->lineno_count
!= 0)
3671 if ((current
->flags
& SEC_DEBUGGING
) != 0
3672 && ! is_reloc_section
)
3677 /* Indicate the use of an XCOFF overflow section header. */
3678 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3680 section
.s_nreloc
= 0xffff;
3681 section
.s_nlnno
= 0xffff;
3686 section
.s_flags
= sec_to_styp_flags (current
->name
, current
->flags
);
3688 if (!strcmp (current
->name
, _TEXT
))
3690 else if (!strcmp (current
->name
, _DATA
))
3692 else if (!strcmp (current
->name
, _BSS
))
3696 section
.s_align
= (current
->alignment_power
3697 ? 1 << current
->alignment_power
3701 /* TI COFF puts the alignment power in bits 8-11 of the flags. */
3702 section
.s_flags
|= (current
->alignment_power
& 0xF) << 8;
3704 #ifdef COFF_ENCODE_ALIGNMENT
3705 COFF_ENCODE_ALIGNMENT(section
, current
->alignment_power
);
3708 #ifdef COFF_IMAGE_WITH_PE
3709 /* Suppress output of the sections if they are null. ld
3710 includes the bss and data sections even if there is no size
3711 assigned to them. NT loader doesn't like it if these section
3712 headers are included if the sections themselves are not
3713 needed. See also coff_compute_section_file_positions. */
3714 if (section
.s_size
== 0)
3715 internal_f
.f_nscns
--;
3720 bfd_size_type amt
= bfd_coff_scnhsz (abfd
);
3722 if (coff_swap_scnhdr_out (abfd
, §ion
, &buff
) == 0
3723 || bfd_bwrite ((PTR
) &buff
, amt
, abfd
) != amt
)
3728 /* PE stores COMDAT section information in the symbol table. If
3729 this section is supposed to have some COMDAT info, track down
3730 the symbol in the symbol table and modify it. */
3731 if ((current
->flags
& SEC_LINK_ONCE
) != 0)
3733 unsigned int i
, count
;
3735 coff_symbol_type
*csym
= NULL
;
3739 count
= bfd_get_symcount (abfd
);
3740 for (i
= 0, psym
= abfd
->outsymbols
; i
< count
; i
++, psym
++)
3742 if ((*psym
)->section
!= current
)
3745 /* Remember the location of the first symbol in this
3747 if (psymsec
== NULL
)
3750 /* See if this is the section symbol. */
3751 if (strcmp ((*psym
)->name
, current
->name
) == 0)
3753 csym
= coff_symbol_from (abfd
, *psym
);
3755 || csym
->native
== NULL
3756 || csym
->native
->u
.syment
.n_numaux
< 1
3757 || csym
->native
->u
.syment
.n_sclass
!= C_STAT
3758 || csym
->native
->u
.syment
.n_type
!= T_NULL
)
3761 /* Here *PSYM is the section symbol for CURRENT. */
3768 Note that we might not if we're converting the file from
3769 some other object file format. */
3772 combined_entry_type
*aux
;
3774 /* We don't touch the x_checksum field. The
3775 x_associated field is not currently supported. */
3777 aux
= csym
->native
+ 1;
3778 switch (current
->flags
& SEC_LINK_DUPLICATES
)
3780 case SEC_LINK_DUPLICATES_DISCARD
:
3781 aux
->u
.auxent
.x_scn
.x_comdat
= IMAGE_COMDAT_SELECT_ANY
;
3784 case SEC_LINK_DUPLICATES_ONE_ONLY
:
3785 aux
->u
.auxent
.x_scn
.x_comdat
=
3786 IMAGE_COMDAT_SELECT_NODUPLICATES
;
3789 case SEC_LINK_DUPLICATES_SAME_SIZE
:
3790 aux
->u
.auxent
.x_scn
.x_comdat
=
3791 IMAGE_COMDAT_SELECT_SAME_SIZE
;
3794 case SEC_LINK_DUPLICATES_SAME_CONTENTS
:
3795 aux
->u
.auxent
.x_scn
.x_comdat
=
3796 IMAGE_COMDAT_SELECT_EXACT_MATCH
;
3800 /* The COMDAT symbol must be the first symbol from this
3801 section in the symbol table. In order to make this
3802 work, we move the COMDAT symbol before the first
3803 symbol we found in the search above. It's OK to
3804 rearrange the symbol table at this point, because
3805 coff_renumber_symbols is going to rearrange it
3806 further and fix up all the aux entries. */
3807 if (psym
!= psymsec
)
3813 for (pcopy
= psym
; pcopy
> psymsec
; pcopy
--)
3814 pcopy
[0] = pcopy
[-1];
3819 #endif /* COFF_WITH_PE */
3824 /* XCOFF handles overflows in the reloc and line number count fields
3825 by creating a new section header to hold the correct values. */
3826 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3828 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3830 struct internal_scnhdr scnhdr
;
3834 internal_f
.f_nscns
++;
3835 strncpy (&(scnhdr
.s_name
[0]), current
->name
, 8);
3836 scnhdr
.s_paddr
= current
->reloc_count
;
3837 scnhdr
.s_vaddr
= current
->lineno_count
;
3839 scnhdr
.s_scnptr
= 0;
3840 scnhdr
.s_relptr
= current
->rel_filepos
;
3841 scnhdr
.s_lnnoptr
= current
->line_filepos
;
3842 scnhdr
.s_nreloc
= current
->target_index
;
3843 scnhdr
.s_nlnno
= current
->target_index
;
3844 scnhdr
.s_flags
= STYP_OVRFLO
;
3845 amt
= bfd_coff_scnhsz (abfd
);
3846 if (coff_swap_scnhdr_out (abfd
, &scnhdr
, &buff
) == 0
3847 || bfd_bwrite ((PTR
) &buff
, amt
, abfd
) != amt
)
3854 /* OK, now set up the filehdr... */
3856 /* Don't include the internal abs section in the section count */
3858 /* We will NOT put a fucking timestamp in the header here. Every time you
3859 put it back, I will come in and take it out again. I'm sorry. This
3860 field does not belong here. We fill it with a 0 so it compares the
3861 same but is not a reasonable time. -- gnu@cygnus.com */
3862 internal_f
.f_timdat
= 0;
3863 internal_f
.f_flags
= 0;
3865 if (abfd
->flags
& EXEC_P
)
3866 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3869 internal_f
.f_opthdr
= 0;
3872 if (xcoff_data (abfd
)->full_aouthdr
)
3873 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3875 internal_f
.f_opthdr
= SMALL_AOUTSZ
;
3881 internal_f
.f_flags
|= F_RELFLG
;
3883 internal_f
.f_flags
|= F_LNNO
;
3884 if (abfd
->flags
& EXEC_P
)
3885 internal_f
.f_flags
|= F_EXEC
;
3886 #ifdef COFF_IMAGE_WITH_PE
3888 internal_f
.f_flags
|= IMAGE_FILE_DEBUG_STRIPPED
;
3892 internal_f
.f_flags
|= IMAGE_FILE_32BIT_MACHINE
;
3894 if (bfd_little_endian (abfd
))
3895 internal_f
.f_flags
|= F_AR32WR
;
3897 internal_f
.f_flags
|= F_AR32W
;
3901 /* Target id is used in TI COFF v1 and later; COFF0 won't use this field,
3902 but it doesn't hurt to set it internally. */
3903 internal_f
.f_target_id
= TI_TARGET_ID
;
3905 #ifdef TIC80_TARGET_ID
3906 internal_f
.f_target_id
= TIC80_TARGET_ID
;
3909 /* FIXME, should do something about the other byte orders and
3913 if ((abfd
->flags
& DYNAMIC
) != 0)
3914 internal_f
.f_flags
|= F_SHROBJ
;
3915 if (bfd_get_section_by_name (abfd
, _LOADER
) != NULL
)
3916 internal_f
.f_flags
|= F_DYNLOAD
;
3919 memset (&internal_a
, 0, sizeof internal_a
);
3921 /* Set up architecture-dependent stuff. */
3923 unsigned int magic
= 0;
3924 unsigned short flags
= 0;
3926 coff_set_flags (abfd
, &magic
, &flags
);
3927 internal_f
.f_magic
= magic
;
3928 internal_f
.f_flags
|= flags
;
3929 /* ...and the "opt"hdr... */
3932 #ifdef ULTRA3 /* NYU's machine */
3933 /* FIXME: This is a bogus check. I really want to see if there
3934 is a .shbss or a .shdata section, if so then set the magic
3935 number to indicate a shared data executable. */
3936 if (internal_f
.f_nscns
>= 7)
3937 internal_a
.magic
= SHMAGIC
; /* Shared magic. */
3940 internal_a
.magic
= NMAGIC
; /* Assume separate i/d. */
3941 #define __A_MAGIC_SET__
3943 #ifdef TICOFF_AOUT_MAGIC
3944 internal_a
.magic
= TICOFF_AOUT_MAGIC
;
3945 #define __A_MAGIC_SET__
3948 internal_a
.magic
= TIC80_ARCH_MAGIC
;
3949 #define __A_MAGIC_SET__
3952 /* FIXME: What are the a.out magic numbers for the i860? */
3953 internal_a
.magic
= 0;
3954 #define __A_MAGIC_SET__
3957 internal_a
.magic
= (magic
== I960ROMAGIC
? NMAGIC
: OMAGIC
);
3958 #define __A_MAGIC_SET__
3961 #define __A_MAGIC_SET__
3962 internal_a
.magic
= PAGEMAGICBCS
;
3966 #define __A_MAGIC_SET__
3967 internal_a
.magic
= APOLLO_COFF_VERSION_NUMBER
;
3970 #if defined(M68) || defined(WE32K) || defined(M68K)
3971 #define __A_MAGIC_SET__
3973 internal_a
.magic
= LYNXCOFFMAGIC
;
3975 #if defined(TARG_AUX)
3976 internal_a
.magic
= (abfd
->flags
& D_PAGED
? PAGEMAGICPEXECPAGED
:
3977 abfd
->flags
& WP_TEXT
? PAGEMAGICPEXECSWAPPED
:
3978 PAGEMAGICEXECSWAPPED
);
3980 #if defined (PAGEMAGICPEXECPAGED)
3981 internal_a
.magic
= PAGEMAGICPEXECPAGED
;
3983 #endif /* TARG_AUX */
3985 #endif /* M68 || WE32K || M68K */
3988 #define __A_MAGIC_SET__
3989 internal_a
.magic
= ZMAGIC
;
3993 #define __A_MAGIC_SET__
3994 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
3997 #if defined MCORE_PE
3998 #define __A_MAGIC_SET__
3999 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
4003 #define __A_MAGIC_SET__
4005 internal_a
.magic
= LYNXCOFFMAGIC
;
4007 internal_a
.magic
= ZMAGIC
;
4012 #define __A_MAGIC_SET__
4013 internal_a
.magic
= ZMAGIC
;
4017 #define __A_MAGIC_SET__
4019 internal_a
.magic
= LYNXCOFFMAGIC
;
4024 #define __A_MAGIC_SET__
4025 internal_a
.magic
= (abfd
->flags
& D_PAGED
) ? RS6K_AOUTHDR_ZMAGIC
:
4026 (abfd
->flags
& WP_TEXT
) ? RS6K_AOUTHDR_NMAGIC
:
4027 RS6K_AOUTHDR_OMAGIC
;
4030 #if defined(SH) && defined(COFF_WITH_PE)
4031 #define __A_MAGIC_SET__
4032 internal_a
.magic
= SH_PE_MAGIC
;
4035 #if defined(MIPS) && defined(COFF_WITH_PE)
4036 #define __A_MAGIC_SET__
4037 internal_a
.magic
= MIPS_PE_MAGIC
;
4041 #define __A_MAGIC_SET__
4042 internal_a
.magic
= NMAGIC
; /* Assume separate i/d. */
4045 #ifndef __A_MAGIC_SET__
4046 #include "Your aouthdr magic number is not being set!"
4048 #undef __A_MAGIC_SET__
4052 /* FIXME: Does anybody ever set this to another value? */
4053 internal_a
.vstamp
= 0;
4055 /* Now should write relocs, strings, syms. */
4056 obj_sym_filepos (abfd
) = sym_base
;
4058 if (bfd_get_symcount (abfd
) != 0)
4062 if (!coff_add_missing_symbols (abfd
))
4065 if (!coff_renumber_symbols (abfd
, &firstundef
))
4067 coff_mangle_symbols (abfd
);
4068 if (! coff_write_symbols (abfd
))
4070 if (! coff_write_linenumbers (abfd
))
4072 if (! coff_write_relocs (abfd
, firstundef
))
4075 #ifdef COFF_LONG_SECTION_NAMES
4076 else if (long_section_names
&& ! obj_coff_strings_written (abfd
))
4078 /* If we have long section names we have to write out the string
4079 table even if there are no symbols. */
4080 if (! coff_write_symbols (abfd
))
4084 #ifdef COFF_IMAGE_WITH_PE
4086 else if ((abfd
->flags
& EXEC_P
) != 0)
4090 /* PowerPC PE appears to require that all executable files be
4091 rounded up to the page size. */
4094 (file_ptr
) BFD_ALIGN (sym_base
, COFF_PAGE_SIZE
) - 1,
4096 || bfd_bwrite (&b
, (bfd_size_type
) 1, abfd
) != 1)
4102 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
4103 backend linker, and obj_raw_syment_count is not valid until after
4104 coff_write_symbols is called. */
4105 if (obj_raw_syment_count (abfd
) != 0)
4107 internal_f
.f_symptr
= sym_base
;
4109 /* AIX appears to require that F_RELFLG not be set if there are
4110 local symbols but no relocations. */
4111 internal_f
.f_flags
&=~ F_RELFLG
;
4116 if (long_section_names
)
4117 internal_f
.f_symptr
= sym_base
;
4119 internal_f
.f_symptr
= 0;
4120 internal_f
.f_flags
|= F_LSYMS
;
4125 internal_a
.tsize
= bfd_get_section_size_before_reloc (text_sec
);
4126 internal_a
.text_start
= internal_a
.tsize
? text_sec
->vma
: 0;
4130 internal_a
.dsize
= bfd_get_section_size_before_reloc (data_sec
);
4131 internal_a
.data_start
= internal_a
.dsize
? data_sec
->vma
: 0;
4135 internal_a
.bsize
= bfd_get_section_size_before_reloc (bss_sec
);
4136 if (internal_a
.bsize
&& bss_sec
->vma
< internal_a
.data_start
)
4137 internal_a
.data_start
= bss_sec
->vma
;
4140 internal_a
.entry
= bfd_get_start_address (abfd
);
4141 internal_f
.f_nsyms
= obj_raw_syment_count (abfd
);
4144 if (xcoff_data (abfd
)->full_aouthdr
)
4147 asection
*loader_sec
;
4149 internal_a
.vstamp
= 1;
4151 internal_a
.o_snentry
= xcoff_data (abfd
)->snentry
;
4152 if (internal_a
.o_snentry
== 0)
4153 internal_a
.entry
= (bfd_vma
) -1;
4155 if (text_sec
!= NULL
)
4157 internal_a
.o_sntext
= text_sec
->target_index
;
4158 internal_a
.o_algntext
= bfd_get_section_alignment (abfd
, text_sec
);
4162 internal_a
.o_sntext
= 0;
4163 internal_a
.o_algntext
= 0;
4165 if (data_sec
!= NULL
)
4167 internal_a
.o_sndata
= data_sec
->target_index
;
4168 internal_a
.o_algndata
= bfd_get_section_alignment (abfd
, data_sec
);
4172 internal_a
.o_sndata
= 0;
4173 internal_a
.o_algndata
= 0;
4175 loader_sec
= bfd_get_section_by_name (abfd
, ".loader");
4176 if (loader_sec
!= NULL
)
4177 internal_a
.o_snloader
= loader_sec
->target_index
;
4179 internal_a
.o_snloader
= 0;
4180 if (bss_sec
!= NULL
)
4181 internal_a
.o_snbss
= bss_sec
->target_index
;
4183 internal_a
.o_snbss
= 0;
4185 toc
= xcoff_data (abfd
)->toc
;
4186 internal_a
.o_toc
= toc
;
4187 internal_a
.o_sntoc
= xcoff_data (abfd
)->sntoc
;
4189 internal_a
.o_modtype
= xcoff_data (abfd
)->modtype
;
4190 if (xcoff_data (abfd
)->cputype
!= -1)
4191 internal_a
.o_cputype
= xcoff_data (abfd
)->cputype
;
4194 switch (bfd_get_arch (abfd
))
4196 case bfd_arch_rs6000
:
4197 internal_a
.o_cputype
= 4;
4199 case bfd_arch_powerpc
:
4200 if (bfd_get_mach (abfd
) == bfd_mach_ppc
)
4201 internal_a
.o_cputype
= 3;
4203 internal_a
.o_cputype
= 1;
4209 internal_a
.o_maxstack
= xcoff_data (abfd
)->maxstack
;
4210 internal_a
.o_maxdata
= xcoff_data (abfd
)->maxdata
;
4214 /* now write them */
4215 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
) != 0)
4220 bfd_size_type amount
= bfd_coff_filhsz (abfd
);
4222 buff
= bfd_malloc (amount
);
4226 bfd_coff_swap_filehdr_out (abfd
, (PTR
) &internal_f
, (PTR
) buff
);
4227 amount
= bfd_bwrite ((PTR
) buff
, amount
, abfd
);
4231 if (amount
!= bfd_coff_filhsz (abfd
))
4235 if (abfd
->flags
& EXEC_P
)
4237 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
4238 include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */
4240 bfd_size_type amount
= bfd_coff_aoutsz (abfd
);
4242 buff
= bfd_malloc (amount
);
4246 coff_swap_aouthdr_out (abfd
, (PTR
) &internal_a
, (PTR
) buff
);
4247 amount
= bfd_bwrite ((PTR
) buff
, amount
, abfd
);
4251 if (amount
!= bfd_coff_aoutsz (abfd
))
4254 #ifdef COFF_IMAGE_WITH_PE
4255 if (! coff_apply_checksum (abfd
))
4265 /* XCOFF seems to always write at least a small a.out header. */
4266 coff_swap_aouthdr_out (abfd
, (PTR
) &internal_a
, (PTR
) &buff
);
4267 if (xcoff_data (abfd
)->full_aouthdr
)
4268 size
= bfd_coff_aoutsz (abfd
);
4270 size
= SMALL_AOUTSZ
;
4271 if (bfd_bwrite ((PTR
) &buff
, (bfd_size_type
) size
, abfd
) != size
)
4280 coff_set_section_contents (abfd
, section
, location
, offset
, count
)
4285 bfd_size_type count
;
4287 if (! abfd
->output_has_begun
) /* Set by bfd.c handler. */
4289 if (! coff_compute_section_file_positions (abfd
))
4293 #if defined(_LIB) && !defined(TARG_AUX)
4295 /* The physical address field of a .lib section is used to hold the
4296 number of shared libraries in the section. This code counts the
4297 number of sections being written, and increments the lma field
4300 I have found no documentation on the contents of this section.
4301 Experimentation indicates that the section contains zero or more
4302 records, each of which has the following structure:
4304 - a (four byte) word holding the length of this record, in words,
4305 - a word that always seems to be set to "2",
4306 - the path to a shared library, null-terminated and then padded
4307 to a whole word boundary.
4309 bfd_assert calls have been added to alert if an attempt is made
4310 to write a section which doesn't follow these assumptions. The
4311 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
4312 <robertl@arnet.com> (Thanks!).
4314 Gvran Uddeborg <gvran@uddeborg.pp.se>. */
4316 if (strcmp (section
->name
, _LIB
) == 0)
4318 bfd_byte
*rec
, *recend
;
4320 rec
= (bfd_byte
*) location
;
4321 recend
= rec
+ count
;
4322 while (rec
< recend
)
4325 rec
+= bfd_get_32 (abfd
, rec
) * 4;
4328 BFD_ASSERT (rec
== recend
);
4333 /* Don't write out bss sections - one way to do this is to
4334 see if the filepos has not been set. */
4335 if (section
->filepos
== 0)
4338 if (bfd_seek (abfd
, section
->filepos
+ offset
, SEEK_SET
) != 0)
4344 return bfd_bwrite (location
, count
, abfd
) == count
;
4348 coff_close_and_cleanup (abfd
)
4351 if (!bfd_read_p (abfd
))
4352 switch (abfd
->format
)
4355 if (!_bfd_write_archive_contents (abfd
))
4359 if (!coff_write_object_contents (abfd
))
4363 bfd_set_error (bfd_error_invalid_operation
);
4367 /* We depend on bfd_close to free all the memory on the objalloc. */
4374 buy_and_read (abfd
, where
, size
)
4379 PTR area
= (PTR
) bfd_alloc (abfd
, size
);
4382 if (bfd_seek (abfd
, where
, SEEK_SET
) != 0
4383 || bfd_bread (area
, size
, abfd
) != size
)
4386 } /* buy_and_read() */
4392 Creating the linenumber table is done by reading in the entire
4393 coff linenumber table, and creating another table for internal use.
4395 A coff linenumber table is structured so that each function
4396 is marked as having a line number of 0. Each line within the
4397 function is an offset from the first line in the function. The
4398 base of the line number information for the table is stored in
4399 the symbol associated with the function.
4401 Note: The PE format uses line number 0 for a flag indicating a
4404 The information is copied from the external to the internal
4405 table, and each symbol which marks a function is marked by
4408 How does this work ?
4413 coff_slurp_line_table (abfd
, asect
)
4417 LINENO
*native_lineno
;
4418 alent
*lineno_cache
;
4421 BFD_ASSERT (asect
->lineno
== (alent
*) NULL
);
4423 amt
= (bfd_size_type
) bfd_coff_linesz (abfd
) * asect
->lineno_count
;
4424 native_lineno
= (LINENO
*) buy_and_read (abfd
, asect
->line_filepos
, amt
);
4425 if (native_lineno
== NULL
)
4427 (*_bfd_error_handler
)
4428 (_("%s: warning: line number table read failed"),
4429 bfd_archive_filename (abfd
));
4432 amt
= ((bfd_size_type
) asect
->lineno_count
+ 1) * sizeof (alent
);
4433 lineno_cache
= (alent
*) bfd_alloc (abfd
, amt
);
4434 if (lineno_cache
== NULL
)
4438 unsigned int counter
= 0;
4439 alent
*cache_ptr
= lineno_cache
;
4440 LINENO
*src
= native_lineno
;
4442 while (counter
< asect
->lineno_count
)
4444 struct internal_lineno dst
;
4446 bfd_coff_swap_lineno_in (abfd
, src
, &dst
);
4447 cache_ptr
->line_number
= dst
.l_lnno
;
4449 if (cache_ptr
->line_number
== 0)
4452 bfd_signed_vma symndx
;
4453 coff_symbol_type
*sym
;
4456 symndx
= dst
.l_addr
.l_symndx
;
4458 || (bfd_vma
) symndx
>= obj_raw_syment_count (abfd
))
4460 (*_bfd_error_handler
)
4461 (_("%s: warning: illegal symbol index %ld in line numbers"),
4462 bfd_archive_filename (abfd
), dst
.l_addr
.l_symndx
);
4466 /* FIXME: We should not be casting between ints and
4467 pointers like this. */
4468 sym
= ((coff_symbol_type
*)
4469 ((symndx
+ obj_raw_syments (abfd
))
4470 ->u
.syment
._n
._n_n
._n_zeroes
));
4471 cache_ptr
->u
.sym
= (asymbol
*) sym
;
4472 if (sym
->lineno
!= NULL
&& ! warned
)
4474 (*_bfd_error_handler
)
4475 (_("%s: warning: duplicate line number information for `%s'"),
4476 bfd_archive_filename (abfd
),
4477 bfd_asymbol_name (&sym
->symbol
));
4479 sym
->lineno
= cache_ptr
;
4483 cache_ptr
->u
.offset
= dst
.l_addr
.l_paddr
4484 - bfd_section_vma (abfd
, asect
);
4485 } /* If no linenumber expect a symbol index */
4491 cache_ptr
->line_number
= 0;
4494 asect
->lineno
= lineno_cache
;
4495 /* FIXME, free native_lineno here, or use alloca or something. */
4499 /* Slurp in the symbol table, converting it to generic form. Note
4500 that if coff_relocate_section is defined, the linker will read
4501 symbols via coff_link_add_symbols, rather than via this routine. */
4504 coff_slurp_symbol_table (abfd
)
4507 combined_entry_type
*native_symbols
;
4508 coff_symbol_type
*cached_area
;
4509 unsigned int *table_ptr
;
4511 unsigned int number_of_symbols
= 0;
4513 if (obj_symbols (abfd
))
4516 /* Read in the symbol table. */
4517 if ((native_symbols
= coff_get_normalized_symtab (abfd
)) == NULL
)
4520 /* Allocate enough room for all the symbols in cached form. */
4521 amt
= obj_raw_syment_count (abfd
);
4522 amt
*= sizeof (coff_symbol_type
);
4523 cached_area
= (coff_symbol_type
*) bfd_alloc (abfd
, amt
);
4524 if (cached_area
== NULL
)
4527 amt
= obj_raw_syment_count (abfd
);
4528 amt
*= sizeof (unsigned int);
4529 table_ptr
= (unsigned int *) bfd_alloc (abfd
, amt
);
4531 if (table_ptr
== NULL
)
4535 coff_symbol_type
*dst
= cached_area
;
4536 unsigned int last_native_index
= obj_raw_syment_count (abfd
);
4537 unsigned int this_index
= 0;
4539 while (this_index
< last_native_index
)
4541 combined_entry_type
*src
= native_symbols
+ this_index
;
4542 table_ptr
[this_index
] = number_of_symbols
;
4543 dst
->symbol
.the_bfd
= abfd
;
4545 dst
->symbol
.name
= (char *) (src
->u
.syment
._n
._n_n
._n_offset
);
4546 /* We use the native name field to point to the cached field. */
4547 src
->u
.syment
._n
._n_n
._n_zeroes
= (long) dst
;
4548 dst
->symbol
.section
= coff_section_from_bfd_index (abfd
,
4549 src
->u
.syment
.n_scnum
);
4550 dst
->symbol
.flags
= 0;
4551 dst
->done_lineno
= FALSE
;
4553 switch (src
->u
.syment
.n_sclass
)
4558 dst
->symbol
.value
= src
->u
.syment
.n_value
- dst
->symbol
.section
->vma
;
4559 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
4560 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4562 /* Fall through to next case. */
4569 case C_THUMBEXTFUNC
:
4575 case C_SYSTEM
: /* System Wide variable. */
4578 /* In PE, 0x68 (104) denotes a section symbol. */
4580 /* In PE, 0x69 (105) denotes a weak external symbol. */
4583 switch (coff_classify_symbol (abfd
, &src
->u
.syment
))
4585 case COFF_SYMBOL_GLOBAL
:
4586 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
4587 #if defined COFF_WITH_PE
4588 /* PE sets the symbol to a value relative to the
4589 start of the section. */
4590 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4592 dst
->symbol
.value
= (src
->u
.syment
.n_value
4593 - dst
->symbol
.section
->vma
);
4595 if (ISFCN ((src
->u
.syment
.n_type
)))
4597 /* A function ext does not go at the end of a
4599 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4603 case COFF_SYMBOL_COMMON
:
4604 dst
->symbol
.section
= bfd_com_section_ptr
;
4605 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4608 case COFF_SYMBOL_UNDEFINED
:
4609 dst
->symbol
.section
= bfd_und_section_ptr
;
4610 dst
->symbol
.value
= 0;
4613 case COFF_SYMBOL_PE_SECTION
:
4614 dst
->symbol
.flags
|= BSF_EXPORT
| BSF_SECTION_SYM
;
4615 dst
->symbol
.value
= 0;
4618 case COFF_SYMBOL_LOCAL
:
4619 dst
->symbol
.flags
= BSF_LOCAL
;
4620 #if defined COFF_WITH_PE
4621 /* PE sets the symbol to a value relative to the
4622 start of the section. */
4623 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4625 dst
->symbol
.value
= (src
->u
.syment
.n_value
4626 - dst
->symbol
.section
->vma
);
4628 if (ISFCN ((src
->u
.syment
.n_type
)))
4629 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4634 /* A symbol with a csect entry should not go at the end. */
4635 if (src
->u
.syment
.n_numaux
> 0)
4636 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
4640 if (src
->u
.syment
.n_sclass
== C_NT_WEAK
)
4641 dst
->symbol
.flags
|= BSF_WEAK
;
4643 if (src
->u
.syment
.n_sclass
== C_SECTION
4644 && src
->u
.syment
.n_scnum
> 0)
4645 dst
->symbol
.flags
= BSF_LOCAL
;
4647 if (src
->u
.syment
.n_sclass
== C_WEAKEXT
)
4648 dst
->symbol
.flags
|= BSF_WEAK
;
4652 case C_STAT
: /* Static. */
4654 case C_LEAFSTAT
: /* Static leaf procedure. */
4657 case C_THUMBSTAT
: /* Thumb static. */
4658 case C_THUMBLABEL
: /* Thumb label. */
4659 case C_THUMBSTATFUNC
:/* Thumb static function. */
4661 case C_LABEL
: /* Label. */
4662 if (src
->u
.syment
.n_scnum
== N_DEBUG
)
4663 dst
->symbol
.flags
= BSF_DEBUGGING
;
4665 dst
->symbol
.flags
= BSF_LOCAL
;
4667 /* Base the value as an index from the base of the
4668 section, if there is one. */
4669 if (dst
->symbol
.section
)
4671 #if defined COFF_WITH_PE
4672 /* PE sets the symbol to a value relative to the
4673 start of the section. */
4674 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4676 dst
->symbol
.value
= (src
->u
.syment
.n_value
4677 - dst
->symbol
.section
->vma
);
4681 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4684 case C_MOS
: /* Member of structure. */
4685 case C_EOS
: /* End of structure. */
4686 #ifdef NOTDEF /* C_AUTOARG has the same value. */
4688 case C_GLBLREG
: /* A29k-specific storage class. */
4691 case C_REGPARM
: /* Register parameter. */
4692 case C_REG
: /* register variable. */
4693 /* C_AUTOARG conflicts with TI COFF C_UEXT. */
4694 #if !defined (TIC80COFF) && !defined (TICOFF)
4696 case C_AUTOARG
: /* 960-specific storage class. */
4699 case C_TPDEF
: /* Type definition. */
4701 case C_AUTO
: /* Automatic variable. */
4702 case C_FIELD
: /* Bit field. */
4703 case C_ENTAG
: /* Enumeration tag. */
4704 case C_MOE
: /* Member of enumeration. */
4705 case C_MOU
: /* Member of union. */
4706 case C_UNTAG
: /* Union tag. */
4707 dst
->symbol
.flags
= BSF_DEBUGGING
;
4708 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4711 case C_FILE
: /* File name. */
4712 case C_STRTAG
: /* Structure tag. */
4729 dst
->symbol
.flags
= BSF_DEBUGGING
;
4730 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4734 case C_BINCL
: /* Beginning of include file. */
4735 case C_EINCL
: /* Ending of include file. */
4736 /* The value is actually a pointer into the line numbers
4737 of the file. We locate the line number entry, and
4738 set the section to the section which contains it, and
4739 the value to the index in that section. */
4743 dst
->symbol
.flags
= BSF_DEBUGGING
;
4744 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
4745 if (sec
->line_filepos
<= (file_ptr
) src
->u
.syment
.n_value
4746 && ((file_ptr
) (sec
->line_filepos
4747 + sec
->lineno_count
* bfd_coff_linesz (abfd
))
4748 > (file_ptr
) src
->u
.syment
.n_value
))
4751 dst
->symbol
.value
= 0;
4754 dst
->symbol
.section
= sec
;
4755 dst
->symbol
.value
= ((src
->u
.syment
.n_value
4756 - sec
->line_filepos
)
4757 / bfd_coff_linesz (abfd
));
4764 dst
->symbol
.flags
= BSF_DEBUGGING
;
4766 /* The value is actually a symbol index. Save a pointer
4767 to the symbol instead of the index. FIXME: This
4768 should use a union. */
4769 src
->u
.syment
.n_value
=
4770 (long) (native_symbols
+ src
->u
.syment
.n_value
);
4771 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4776 case C_BLOCK
: /* ".bb" or ".eb". */
4777 case C_FCN
: /* ".bf" or ".ef" (or PE ".lf"). */
4778 case C_EFCN
: /* Physical end of function. */
4779 #if defined COFF_WITH_PE
4780 /* PE sets the symbol to a value relative to the start
4782 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4783 if (strcmp (dst
->symbol
.name
, ".bf") != 0)
4785 /* PE uses funny values for .ef and .lf; don't
4787 dst
->symbol
.flags
= BSF_DEBUGGING
;
4790 dst
->symbol
.flags
= BSF_DEBUGGING
| BSF_DEBUGGING_RELOC
;
4792 /* Base the value as an index from the base of the
4794 dst
->symbol
.flags
= BSF_LOCAL
;
4795 dst
->symbol
.value
= (src
->u
.syment
.n_value
4796 - dst
->symbol
.section
->vma
);
4800 case C_STATLAB
: /* Static load time label. */
4801 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4802 dst
->symbol
.flags
= BSF_GLOBAL
;
4806 /* PE DLLs sometimes have zeroed out symbols for some
4807 reason. Just ignore them without a warning. */
4808 if (src
->u
.syment
.n_type
== 0
4809 && src
->u
.syment
.n_value
== 0
4810 && src
->u
.syment
.n_scnum
== 0)
4813 case C_EXTDEF
: /* External definition. */
4814 case C_ULABEL
: /* Undefined label. */
4815 case C_USTATIC
: /* Undefined static. */
4816 #ifndef COFF_WITH_PE
4817 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4818 class to represent a section symbol. */
4819 case C_LINE
: /* line # reformatted as symbol table entry. */
4820 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4821 case C_ALIAS
: /* Duplicate tag. */
4823 /* New storage classes for TI COFF. */
4824 #if defined(TIC80COFF) || defined(TICOFF)
4825 case C_UEXT
: /* Tentative external definition. */
4827 case C_EXTLAB
: /* External load time label. */
4828 case C_HIDDEN
: /* Ext symbol in dmert public lib. */
4830 (*_bfd_error_handler
)
4831 (_("%s: Unrecognized storage class %d for %s symbol `%s'"),
4832 bfd_archive_filename (abfd
), src
->u
.syment
.n_sclass
,
4833 dst
->symbol
.section
->name
, dst
->symbol
.name
);
4834 dst
->symbol
.flags
= BSF_DEBUGGING
;
4835 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4839 /* BFD_ASSERT(dst->symbol.flags != 0);*/
4843 dst
->symbol
.udata
.i
= 0;
4844 dst
->lineno
= (alent
*) NULL
;
4845 this_index
+= (src
->u
.syment
.n_numaux
) + 1;
4847 number_of_symbols
++;
4851 obj_symbols (abfd
) = cached_area
;
4852 obj_raw_syments (abfd
) = native_symbols
;
4854 bfd_get_symcount (abfd
) = number_of_symbols
;
4855 obj_convert (abfd
) = table_ptr
;
4856 /* Slurp the line tables for each section too. */
4863 coff_slurp_line_table (abfd
, p
);
4869 } /* coff_slurp_symbol_table() */
4871 /* Classify a COFF symbol. A couple of targets have globally visible
4872 symbols which are not class C_EXT, and this handles those. It also
4873 recognizes some special PE cases. */
4875 static enum coff_symbol_classification
4876 coff_classify_symbol (abfd
, syment
)
4878 struct internal_syment
*syment
;
4880 /* FIXME: This partially duplicates the switch in
4881 coff_slurp_symbol_table. */
4882 switch (syment
->n_sclass
)
4891 case C_THUMBEXTFUNC
:
4899 if (syment
->n_scnum
== 0)
4901 if (syment
->n_value
== 0)
4902 return COFF_SYMBOL_UNDEFINED
;
4904 return COFF_SYMBOL_COMMON
;
4906 return COFF_SYMBOL_GLOBAL
;
4913 if (syment
->n_sclass
== C_STAT
)
4915 if (syment
->n_scnum
== 0)
4917 /* The Microsoft compiler sometimes generates these if a
4918 small static function is inlined every time it is used.
4919 The function is discarded, but the symbol table entry
4921 return COFF_SYMBOL_LOCAL
;
4924 #ifdef STRICT_PE_FORMAT
4925 /* This is correct for Microsoft generated objects, but it
4926 breaks gas generated objects. */
4928 if (syment
->n_value
== 0)
4931 char buf
[SYMNMLEN
+ 1];
4933 sec
= coff_section_from_bfd_index (abfd
, syment
->n_scnum
);
4935 && (strcmp (bfd_get_section_name (abfd
, sec
),
4936 _bfd_coff_internal_syment_name (abfd
, syment
, buf
))
4938 return COFF_SYMBOL_PE_SECTION
;
4942 return COFF_SYMBOL_LOCAL
;
4945 if (syment
->n_sclass
== C_SECTION
)
4947 /* In some cases in a DLL generated by the Microsoft linker, the
4948 n_value field will contain garbage. FIXME: This should
4949 probably be handled by the swapping function instead. */
4950 syment
->n_value
= 0;
4951 if (syment
->n_scnum
== 0)
4952 return COFF_SYMBOL_UNDEFINED
;
4953 return COFF_SYMBOL_PE_SECTION
;
4955 #endif /* COFF_WITH_PE */
4957 /* If it is not a global symbol, we presume it is a local symbol. */
4959 if (syment
->n_scnum
== 0)
4961 char buf
[SYMNMLEN
+ 1];
4963 (*_bfd_error_handler
)
4964 (_("warning: %s: local symbol `%s' has no section"),
4965 bfd_archive_filename (abfd
),
4966 _bfd_coff_internal_syment_name (abfd
, syment
, buf
));
4969 return COFF_SYMBOL_LOCAL
;
4976 Coff relocations are easily transformed into the internal BFD form
4979 Reading a coff relocation table is done in the following stages:
4981 o Read the entire coff relocation table into memory.
4983 o Process each relocation in turn; first swap it from the
4984 external to the internal form.
4986 o Turn the symbol referenced in the relocation's symbol index
4987 into a pointer into the canonical symbol table.
4988 This table is the same as the one returned by a call to
4989 @code{bfd_canonicalize_symtab}. The back end will call that
4990 routine and save the result if a canonicalization hasn't been done.
4992 o The reloc index is turned into a pointer to a howto
4993 structure, in a back end specific way. For instance, the 386
4994 and 960 use the @code{r_type} to directly produce an index
4995 into a howto table vector; the 88k subtracts a number from the
4996 @code{r_type} field and creates an addend field.
5001 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
5003 coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \
5004 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
5005 coffsym = (obj_symbols (abfd) \
5006 + (cache_ptr->sym_ptr_ptr - symbols)); \
5008 coffsym = coff_symbol_from (abfd, ptr); \
5009 if (coffsym != (coff_symbol_type *) NULL \
5010 && coffsym->native->u.syment.n_scnum == 0) \
5011 cache_ptr->addend = 0; \
5012 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
5013 && ptr->section != (asection *) NULL) \
5014 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
5016 cache_ptr->addend = 0; \
5021 coff_slurp_reloc_table (abfd
, asect
, symbols
)
5026 RELOC
*native_relocs
;
5027 arelent
*reloc_cache
;
5032 if (asect
->relocation
)
5034 if (asect
->reloc_count
== 0)
5036 if (asect
->flags
& SEC_CONSTRUCTOR
)
5038 if (!coff_slurp_symbol_table (abfd
))
5040 amt
= (bfd_size_type
) bfd_coff_relsz (abfd
) * asect
->reloc_count
;
5041 native_relocs
= (RELOC
*) buy_and_read (abfd
, asect
->rel_filepos
, amt
);
5042 amt
= (bfd_size_type
) asect
->reloc_count
* sizeof (arelent
);
5043 reloc_cache
= (arelent
*) bfd_alloc (abfd
, amt
);
5045 if (reloc_cache
== NULL
)
5048 for (idx
= 0; idx
< asect
->reloc_count
; idx
++)
5050 struct internal_reloc dst
;
5051 struct external_reloc
*src
;
5052 #ifndef RELOC_PROCESSING
5056 cache_ptr
= reloc_cache
+ idx
;
5057 src
= native_relocs
+ idx
;
5059 coff_swap_reloc_in (abfd
, src
, &dst
);
5061 #ifdef RELOC_PROCESSING
5062 RELOC_PROCESSING (cache_ptr
, &dst
, symbols
, abfd
, asect
);
5064 cache_ptr
->address
= dst
.r_vaddr
;
5066 if (dst
.r_symndx
!= -1)
5068 if (dst
.r_symndx
< 0 || dst
.r_symndx
>= obj_conv_table_size (abfd
))
5070 (*_bfd_error_handler
)
5071 (_("%s: warning: illegal symbol index %ld in relocs"),
5072 bfd_archive_filename (abfd
), dst
.r_symndx
);
5073 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
5078 cache_ptr
->sym_ptr_ptr
= (symbols
5079 + obj_convert (abfd
)[dst
.r_symndx
]);
5080 ptr
= *(cache_ptr
->sym_ptr_ptr
);
5085 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
5089 /* The symbols definitions that we have read in have been
5090 relocated as if their sections started at 0. But the offsets
5091 refering to the symbols in the raw data have not been
5092 modified, so we have to have a negative addend to compensate.
5094 Note that symbols which used to be common must be left alone. */
5096 /* Calculate any reloc addend by looking at the symbol. */
5097 CALC_ADDEND (abfd
, ptr
, dst
, cache_ptr
);
5099 cache_ptr
->address
-= asect
->vma
;
5100 /* !! cache_ptr->section = (asection *) NULL;*/
5102 /* Fill in the cache_ptr->howto field from dst.r_type. */
5103 RTYPE2HOWTO (cache_ptr
, &dst
);
5104 #endif /* RELOC_PROCESSING */
5106 if (cache_ptr
->howto
== NULL
)
5108 (*_bfd_error_handler
)
5109 (_("%s: illegal relocation type %d at address 0x%lx"),
5110 bfd_archive_filename (abfd
), dst
.r_type
, (long) dst
.r_vaddr
);
5111 bfd_set_error (bfd_error_bad_value
);
5116 asect
->relocation
= reloc_cache
;
5120 #ifndef coff_rtype_to_howto
5123 /* Get the howto structure for a reloc. This is only used if the file
5124 including this one defines coff_relocate_section to be
5125 _bfd_coff_generic_relocate_section, so it is OK if it does not
5126 always work. It is the responsibility of the including file to
5127 make sure it is reasonable if it is needed. */
5129 static reloc_howto_type
*coff_rtype_to_howto
5130 PARAMS ((bfd
*, asection
*, struct internal_reloc
*,
5131 struct coff_link_hash_entry
*, struct internal_syment
*,
5134 static reloc_howto_type
*
5135 coff_rtype_to_howto (abfd
, sec
, rel
, h
, sym
, addendp
)
5136 bfd
*abfd ATTRIBUTE_UNUSED
;
5137 asection
*sec ATTRIBUTE_UNUSED
;
5138 struct internal_reloc
*rel
;
5139 struct coff_link_hash_entry
*h ATTRIBUTE_UNUSED
;
5140 struct internal_syment
*sym ATTRIBUTE_UNUSED
;
5141 bfd_vma
*addendp ATTRIBUTE_UNUSED
;
5145 RTYPE2HOWTO (&genrel
, rel
);
5146 return genrel
.howto
;
5149 #else /* ! defined (RTYPE2HOWTO) */
5151 #define coff_rtype_to_howto NULL
5153 #endif /* ! defined (RTYPE2HOWTO) */
5154 #endif /* ! defined (coff_rtype_to_howto) */
5156 /* This is stupid. This function should be a boolean predicate. */
5158 coff_canonicalize_reloc (abfd
, section
, relptr
, symbols
)
5164 arelent
*tblptr
= section
->relocation
;
5165 unsigned int count
= 0;
5167 if (section
->flags
& SEC_CONSTRUCTOR
)
5169 /* This section has relocs made up by us, they are not in the
5170 file, so take them out of their chain and place them into
5171 the data area provided. */
5172 arelent_chain
*chain
= section
->constructor_chain
;
5174 for (count
= 0; count
< section
->reloc_count
; count
++)
5176 *relptr
++ = &chain
->relent
;
5177 chain
= chain
->next
;
5182 if (! coff_slurp_reloc_table (abfd
, section
, symbols
))
5185 tblptr
= section
->relocation
;
5187 for (; count
++ < section
->reloc_count
;)
5188 *relptr
++ = tblptr
++;
5191 return section
->reloc_count
;
5196 coff_sym_filepos (abfd
)
5199 return obj_sym_filepos (abfd
);
5203 #ifndef coff_reloc16_estimate
5204 #define coff_reloc16_estimate dummy_reloc16_estimate
5206 static int dummy_reloc16_estimate
5207 PARAMS ((bfd
*, asection
*, arelent
*, unsigned int,
5208 struct bfd_link_info
*));
5211 dummy_reloc16_estimate (abfd
, input_section
, reloc
, shrink
, link_info
)
5212 bfd
*abfd ATTRIBUTE_UNUSED
;
5213 asection
*input_section ATTRIBUTE_UNUSED
;
5214 arelent
*reloc ATTRIBUTE_UNUSED
;
5215 unsigned int shrink ATTRIBUTE_UNUSED
;
5216 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
;
5224 #ifndef coff_reloc16_extra_cases
5226 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
5228 /* This works even if abort is not declared in any header file. */
5230 static void dummy_reloc16_extra_cases
5231 PARAMS ((bfd
*, struct bfd_link_info
*, struct bfd_link_order
*, arelent
*,
5232 bfd_byte
*, unsigned int *, unsigned int *));
5235 dummy_reloc16_extra_cases (abfd
, link_info
, link_order
, reloc
, data
, src_ptr
,
5237 bfd
*abfd ATTRIBUTE_UNUSED
;
5238 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
;
5239 struct bfd_link_order
*link_order ATTRIBUTE_UNUSED
;
5240 arelent
*reloc ATTRIBUTE_UNUSED
;
5241 bfd_byte
*data ATTRIBUTE_UNUSED
;
5242 unsigned int *src_ptr ATTRIBUTE_UNUSED
;
5243 unsigned int *dst_ptr ATTRIBUTE_UNUSED
;
5249 #ifndef coff_bfd_link_hash_table_free
5250 #define coff_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
5253 /* If coff_relocate_section is defined, we can use the optimized COFF
5254 backend linker. Otherwise we must continue to use the old linker. */
5255 #ifdef coff_relocate_section
5256 #ifndef coff_bfd_link_hash_table_create
5257 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
5259 #ifndef coff_bfd_link_add_symbols
5260 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
5262 #ifndef coff_bfd_final_link
5263 #define coff_bfd_final_link _bfd_coff_final_link
5265 #else /* ! defined (coff_relocate_section) */
5266 #define coff_relocate_section NULL
5267 #ifndef coff_bfd_link_hash_table_create
5268 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
5270 #ifndef coff_bfd_link_add_symbols
5271 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
5273 #define coff_bfd_final_link _bfd_generic_final_link
5274 #endif /* ! defined (coff_relocate_section) */
5276 #define coff_bfd_link_just_syms _bfd_generic_link_just_syms
5277 #define coff_bfd_link_split_section _bfd_generic_link_split_section
5279 #ifndef coff_start_final_link
5280 #define coff_start_final_link NULL
5283 #ifndef coff_adjust_symndx
5284 #define coff_adjust_symndx NULL
5287 #ifndef coff_link_add_one_symbol
5288 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
5291 #ifndef coff_link_output_has_begun
5293 static bfd_boolean coff_link_output_has_begun
5294 PARAMS ((bfd
*, struct coff_final_link_info
*));
5297 coff_link_output_has_begun (abfd
, info
)
5299 struct coff_final_link_info
* info ATTRIBUTE_UNUSED
;
5301 return abfd
->output_has_begun
;
5305 #ifndef coff_final_link_postscript
5307 static bfd_boolean coff_final_link_postscript
5308 PARAMS ((bfd
*, struct coff_final_link_info
*));
5311 coff_final_link_postscript (abfd
, pfinfo
)
5312 bfd
* abfd ATTRIBUTE_UNUSED
;
5313 struct coff_final_link_info
* pfinfo ATTRIBUTE_UNUSED
;
5319 #ifndef coff_SWAP_aux_in
5320 #define coff_SWAP_aux_in coff_swap_aux_in
5322 #ifndef coff_SWAP_sym_in
5323 #define coff_SWAP_sym_in coff_swap_sym_in
5325 #ifndef coff_SWAP_lineno_in
5326 #define coff_SWAP_lineno_in coff_swap_lineno_in
5328 #ifndef coff_SWAP_aux_out
5329 #define coff_SWAP_aux_out coff_swap_aux_out
5331 #ifndef coff_SWAP_sym_out
5332 #define coff_SWAP_sym_out coff_swap_sym_out
5334 #ifndef coff_SWAP_lineno_out
5335 #define coff_SWAP_lineno_out coff_swap_lineno_out
5337 #ifndef coff_SWAP_reloc_out
5338 #define coff_SWAP_reloc_out coff_swap_reloc_out
5340 #ifndef coff_SWAP_filehdr_out
5341 #define coff_SWAP_filehdr_out coff_swap_filehdr_out
5343 #ifndef coff_SWAP_aouthdr_out
5344 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
5346 #ifndef coff_SWAP_scnhdr_out
5347 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
5349 #ifndef coff_SWAP_reloc_in
5350 #define coff_SWAP_reloc_in coff_swap_reloc_in
5352 #ifndef coff_SWAP_filehdr_in
5353 #define coff_SWAP_filehdr_in coff_swap_filehdr_in
5355 #ifndef coff_SWAP_aouthdr_in
5356 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
5358 #ifndef coff_SWAP_scnhdr_in
5359 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
5362 static const bfd_coff_backend_data bfd_coff_std_swap_table
=
5364 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5365 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5366 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5367 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5368 coff_SWAP_scnhdr_out
,
5369 FILHSZ
, AOUTSZ
, SCNHSZ
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
5370 #ifdef COFF_LONG_FILENAMES
5375 #ifdef COFF_LONG_SECTION_NAMES
5380 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5381 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5386 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5391 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5392 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
5393 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5394 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5395 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5396 coff_classify_symbol
, coff_compute_section_file_positions
,
5397 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5398 coff_adjust_symndx
, coff_link_add_one_symbol
,
5399 coff_link_output_has_begun
, coff_final_link_postscript
5403 /* COFF0 differs in file/section header size and relocation entry size. */
5404 static const bfd_coff_backend_data ticoff0_swap_table
=
5406 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5407 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5408 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5409 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5410 coff_SWAP_scnhdr_out
,
5411 FILHSZ_V0
, AOUTSZ
, SCNHSZ_V01
, SYMESZ
, AUXESZ
, RELSZ_V0
, LINESZ
, FILNMLEN
,
5412 #ifdef COFF_LONG_FILENAMES
5417 #ifdef COFF_LONG_SECTION_NAMES
5422 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5423 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5428 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5433 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5434 coff_SWAP_reloc_in
, ticoff0_bad_format_hook
, coff_set_arch_mach_hook
,
5435 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5436 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5437 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5438 coff_classify_symbol
, coff_compute_section_file_positions
,
5439 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5440 coff_adjust_symndx
, coff_link_add_one_symbol
,
5441 coff_link_output_has_begun
, coff_final_link_postscript
5446 /* COFF1 differs in section header size. */
5447 static const bfd_coff_backend_data ticoff1_swap_table
=
5449 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5450 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5451 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5452 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5453 coff_SWAP_scnhdr_out
,
5454 FILHSZ
, AOUTSZ
, SCNHSZ_V01
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
5455 #ifdef COFF_LONG_FILENAMES
5460 #ifdef COFF_LONG_SECTION_NAMES
5465 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5466 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5471 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5476 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5477 coff_SWAP_reloc_in
, ticoff1_bad_format_hook
, coff_set_arch_mach_hook
,
5478 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5479 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5480 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5481 coff_classify_symbol
, coff_compute_section_file_positions
,
5482 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5483 coff_adjust_symndx
, coff_link_add_one_symbol
,
5484 coff_link_output_has_begun
, coff_final_link_postscript
5488 #ifndef coff_close_and_cleanup
5489 #define coff_close_and_cleanup _bfd_generic_close_and_cleanup
5492 #ifndef coff_bfd_free_cached_info
5493 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
5496 #ifndef coff_get_section_contents
5497 #define coff_get_section_contents _bfd_generic_get_section_contents
5500 #ifndef coff_bfd_copy_private_symbol_data
5501 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
5504 #ifndef coff_bfd_copy_private_section_data
5505 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
5508 #ifndef coff_bfd_copy_private_bfd_data
5509 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
5512 #ifndef coff_bfd_merge_private_bfd_data
5513 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
5516 #ifndef coff_bfd_set_private_flags
5517 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
5520 #ifndef coff_bfd_print_private_bfd_data
5521 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
5524 #ifndef coff_bfd_is_local_label_name
5525 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
5528 #ifndef coff_read_minisymbols
5529 #define coff_read_minisymbols _bfd_generic_read_minisymbols
5532 #ifndef coff_minisymbol_to_symbol
5533 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
5536 /* The reloc lookup routine must be supplied by each individual COFF
5538 #ifndef coff_bfd_reloc_type_lookup
5539 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5542 #ifndef coff_bfd_get_relocated_section_contents
5543 #define coff_bfd_get_relocated_section_contents \
5544 bfd_generic_get_relocated_section_contents
5547 #ifndef coff_bfd_relax_section
5548 #define coff_bfd_relax_section bfd_generic_relax_section
5551 #ifndef coff_bfd_gc_sections
5552 #define coff_bfd_gc_sections bfd_generic_gc_sections
5555 #ifndef coff_bfd_merge_sections
5556 #define coff_bfd_merge_sections bfd_generic_merge_sections
5559 #ifndef coff_bfd_discard_group
5560 #define coff_bfd_discard_group bfd_generic_discard_group
5563 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5564 const bfd_target VAR = \
5567 bfd_target_coff_flavour, \
5568 BFD_ENDIAN_BIG, /* data byte order is big */ \
5569 BFD_ENDIAN_BIG, /* header byte order is big */ \
5570 /* object flags */ \
5571 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5572 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5573 /* section flags */ \
5574 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5575 UNDER, /* leading symbol underscore */ \
5576 '/', /* ar_pad_char */ \
5577 15, /* ar_max_namelen */ \
5579 /* Data conversion functions. */ \
5580 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5581 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5582 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5584 /* Header conversion functions. */ \
5585 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5586 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5587 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5589 /* bfd_check_format */ \
5590 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5591 _bfd_dummy_target }, \
5592 /* bfd_set_format */ \
5593 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5594 /* bfd_write_contents */ \
5595 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5598 BFD_JUMP_TABLE_GENERIC (coff), \
5599 BFD_JUMP_TABLE_COPY (coff), \
5600 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5601 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5602 BFD_JUMP_TABLE_SYMBOLS (coff), \
5603 BFD_JUMP_TABLE_RELOCS (coff), \
5604 BFD_JUMP_TABLE_WRITE (coff), \
5605 BFD_JUMP_TABLE_LINK (coff), \
5606 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5613 #define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5614 const bfd_target VAR = \
5617 bfd_target_coff_flavour, \
5618 BFD_ENDIAN_LITTLE, /* data byte order is little */ \
5619 BFD_ENDIAN_BIG, /* header byte order is big */ \
5620 /* object flags */ \
5621 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5622 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5623 /* section flags */ \
5624 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5625 UNDER, /* leading symbol underscore */ \
5626 '/', /* ar_pad_char */ \
5627 15, /* ar_max_namelen */ \
5629 /* Data conversion functions. */ \
5630 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5631 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5632 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5634 /* Header conversion functions. */ \
5635 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5636 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5637 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5639 /* bfd_check_format */ \
5640 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5641 _bfd_dummy_target }, \
5642 /* bfd_set_format */ \
5643 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5644 /* bfd_write_contents */ \
5645 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5648 BFD_JUMP_TABLE_GENERIC (coff), \
5649 BFD_JUMP_TABLE_COPY (coff), \
5650 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5651 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5652 BFD_JUMP_TABLE_SYMBOLS (coff), \
5653 BFD_JUMP_TABLE_RELOCS (coff), \
5654 BFD_JUMP_TABLE_WRITE (coff), \
5655 BFD_JUMP_TABLE_LINK (coff), \
5656 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5663 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5664 const bfd_target VAR = \
5667 bfd_target_coff_flavour, \
5668 BFD_ENDIAN_LITTLE, /* data byte order is little */ \
5669 BFD_ENDIAN_LITTLE, /* header byte order is little */ \
5670 /* object flags */ \
5671 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5672 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5673 /* section flags */ \
5674 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5675 UNDER, /* leading symbol underscore */ \
5676 '/', /* ar_pad_char */ \
5677 15, /* ar_max_namelen */ \
5679 /* Data conversion functions. */ \
5680 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5681 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5682 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5683 /* Header conversion functions. */ \
5684 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5685 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5686 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5687 /* bfd_check_format */ \
5688 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5689 _bfd_dummy_target }, \
5690 /* bfd_set_format */ \
5691 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5692 /* bfd_write_contents */ \
5693 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5696 BFD_JUMP_TABLE_GENERIC (coff), \
5697 BFD_JUMP_TABLE_COPY (coff), \
5698 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5699 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5700 BFD_JUMP_TABLE_SYMBOLS (coff), \
5701 BFD_JUMP_TABLE_RELOCS (coff), \
5702 BFD_JUMP_TABLE_WRITE (coff), \
5703 BFD_JUMP_TABLE_LINK (coff), \
5704 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \