1 /* Support for the generic parts of most COFF variants, for BFD.
2 Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999
3 Free Software Foundation, Inc.
4 Written by Cygnus Support.
6 This file is part of BFD, the Binary File Descriptor library.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
23 Most of this hacked by Steve Chamberlain,
31 BFD supports a number of different flavours of coff format.
32 The major differences between formats are the sizes and
33 alignments of fields in structures on disk, and the occasional
36 Coff in all its varieties is implemented with a few common
37 files and a number of implementation specific files. For
38 example, The 88k bcs coff format is implemented in the file
39 @file{coff-m88k.c}. This file @code{#include}s
40 @file{coff/m88k.h} which defines the external structure of the
41 coff format for the 88k, and @file{coff/internal.h} which
42 defines the internal structure. @file{coff-m88k.c} also
43 defines the relocations used by the 88k format
46 The Intel i960 processor version of coff is implemented in
47 @file{coff-i960.c}. This file has the same structure as
48 @file{coff-m88k.c}, except that it includes @file{coff/i960.h}
49 rather than @file{coff-m88k.h}.
52 Porting to a new version of coff
54 The recommended method is to select from the existing
55 implementations the version of coff which is most like the one
56 you want to use. For example, we'll say that i386 coff is
57 the one you select, and that your coff flavour is called foo.
58 Copy @file{i386coff.c} to @file{foocoff.c}, copy
59 @file{../include/coff/i386.h} to @file{../include/coff/foo.h},
60 and add the lines to @file{targets.c} and @file{Makefile.in}
61 so that your new back end is used. Alter the shapes of the
62 structures in @file{../include/coff/foo.h} so that they match
63 what you need. You will probably also have to add
64 @code{#ifdef}s to the code in @file{coff/internal.h} and
65 @file{coffcode.h} if your version of coff is too wild.
67 You can verify that your new BFD backend works quite simply by
68 building @file{objdump} from the @file{binutils} directory,
69 and making sure that its version of what's going on and your
70 host system's idea (assuming it has the pretty standard coff
71 dump utility, usually called @code{att-dump} or just
72 @code{dump}) are the same. Then clean up your code, and send
73 what you've done to Cygnus. Then your stuff will be in the
74 next release, and you won't have to keep integrating it.
77 How the coff backend works
82 The Coff backend is split into generic routines that are
83 applicable to any Coff target and routines that are specific
84 to a particular target. The target-specific routines are
85 further split into ones which are basically the same for all
86 Coff targets except that they use the external symbol format
87 or use different values for certain constants.
89 The generic routines are in @file{coffgen.c}. These routines
90 work for any Coff target. They use some hooks into the target
91 specific code; the hooks are in a @code{bfd_coff_backend_data}
92 structure, one of which exists for each target.
94 The essentially similar target-specific routines are in
95 @file{coffcode.h}. This header file includes executable C code.
96 The various Coff targets first include the appropriate Coff
97 header file, make any special defines that are needed, and
98 then include @file{coffcode.h}.
100 Some of the Coff targets then also have additional routines in
101 the target source file itself.
103 For example, @file{coff-i960.c} includes
104 @file{coff/internal.h} and @file{coff/i960.h}. It then
105 defines a few constants, such as @code{I960}, and includes
106 @file{coffcode.h}. Since the i960 has complex relocation
107 types, @file{coff-i960.c} also includes some code to
108 manipulate the i960 relocs. This code is not in
109 @file{coffcode.h} because it would not be used by any other
115 Each flavour of coff supported in BFD has its own header file
116 describing the external layout of the structures. There is also
117 an internal description of the coff layout, in
118 @file{coff/internal.h}. A major function of the
119 coff backend is swapping the bytes and twiddling the bits to
120 translate the external form of the structures into the normal
121 internal form. This is all performed in the
122 @code{bfd_swap}_@i{thing}_@i{direction} routines. Some
123 elements are different sizes between different versions of
124 coff; it is the duty of the coff version specific include file
125 to override the definitions of various packing routines in
126 @file{coffcode.h}. E.g., the size of line number entry in coff is
127 sometimes 16 bits, and sometimes 32 bits. @code{#define}ing
128 @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the
129 correct one. No doubt, some day someone will find a version of
130 coff which has a varying field size not catered to at the
131 moment. To port BFD, that person will have to add more @code{#defines}.
132 Three of the bit twiddling routines are exported to
133 @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in}
134 and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol
135 table on its own, but uses BFD to fix things up. More of the
136 bit twiddlers are exported for @code{gas};
137 @code{coff_swap_aux_out}, @code{coff_swap_sym_out},
138 @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out},
139 @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out},
140 @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track
141 of all the symbol table and reloc drudgery itself, thereby
142 saving the internal BFD overhead, but uses BFD to swap things
143 on the way out, making cross ports much safer. Doing so also
144 allows BFD (and thus the linker) to use the same header files
145 as @code{gas}, which makes one avenue to disaster disappear.
150 The simple canonical form for symbols used by BFD is not rich
151 enough to keep all the information available in a coff symbol
152 table. The back end gets around this problem by keeping the original
153 symbol table around, "behind the scenes".
155 When a symbol table is requested (through a call to
156 @code{bfd_canonicalize_symtab}), a request gets through to
157 @code{coff_get_normalized_symtab}. This reads the symbol table from
158 the coff file and swaps all the structures inside into the
159 internal form. It also fixes up all the pointers in the table
160 (represented in the file by offsets from the first symbol in
161 the table) into physical pointers to elements in the new
162 internal table. This involves some work since the meanings of
163 fields change depending upon context: a field that is a
164 pointer to another structure in the symbol table at one moment
165 may be the size in bytes of a structure at the next. Another
166 pass is made over the table. All symbols which mark file names
167 (<<C_FILE>> symbols) are modified so that the internal
168 string points to the value in the auxent (the real filename)
169 rather than the normal text associated with the symbol
172 At this time the symbol names are moved around. Coff stores
173 all symbols less than nine characters long physically
174 within the symbol table; longer strings are kept at the end of
175 the file in the string table. This pass moves all strings
176 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 hierachy 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
252 . {* Remembers the offset from the first symbol in the file for
253 . this symbol. Generated by coff_renumber_symbols. *}
254 .unsigned int offset;
256 . {* Should the value of this symbol be renumbered. Used for
257 . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *}
258 .unsigned int fix_value : 1;
260 . {* Should the tag field of this symbol be renumbered.
261 . Created by coff_pointerize_aux. *}
262 .unsigned int fix_tag : 1;
264 . {* Should the endidx field of this symbol be renumbered.
265 . Created by coff_pointerize_aux. *}
266 .unsigned int fix_end : 1;
268 . {* Should the x_csect.x_scnlen field be renumbered.
269 . Created by coff_pointerize_aux. *}
270 .unsigned int fix_scnlen : 1;
272 . {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the
273 . index into the line number entries. Set by
274 . coff_slurp_symbol_table. *}
275 .unsigned int fix_line : 1;
277 . {* The container for the symbol structure as read and translated
281 . union internal_auxent auxent;
282 . struct internal_syment syment;
284 .} combined_entry_type;
287 .{* Each canonical asymbol really looks like this: *}
289 .typedef struct coff_symbol_struct
291 . {* The actual symbol which the rest of BFD works with *}
294 . {* A pointer to the hidden information for this symbol *}
295 .combined_entry_type *native;
297 . {* A pointer to the linenumber information for this symbol *}
298 .struct lineno_cache_entry *lineno;
300 . {* Have the line numbers been relocated yet ? *}
301 .boolean done_lineno;
310 #include "coffswap.h"
313 #define STRING_SIZE_SIZE (4)
315 static long sec_to_styp_flags
PARAMS ((const char *, flagword
));
316 static flagword styp_to_sec_flags
317 PARAMS ((bfd
*, PTR
, const char *, asection
*));
318 static boolean coff_bad_format_hook
PARAMS ((bfd
*, PTR
));
319 static void coff_set_custom_section_alignment
320 PARAMS ((bfd
*, asection
*, const struct coff_section_alignment_entry
*,
321 const unsigned int));
322 static boolean coff_new_section_hook
PARAMS ((bfd
*, asection
*));
323 static boolean coff_set_arch_mach_hook
PARAMS ((bfd
*, PTR
));
324 static boolean coff_write_relocs
PARAMS ((bfd
*, int));
325 static boolean coff_set_flags
326 PARAMS ((bfd
*, unsigned int *, unsigned short *));
327 static boolean coff_set_arch_mach
328 PARAMS ((bfd
*, enum bfd_architecture
, unsigned long));
329 static boolean coff_compute_section_file_positions
PARAMS ((bfd
*));
330 static boolean coff_write_object_contents
PARAMS ((bfd
*));
331 static boolean coff_set_section_contents
332 PARAMS ((bfd
*, asection
*, PTR
, file_ptr
, bfd_size_type
));
333 static PTR buy_and_read
PARAMS ((bfd
*, file_ptr
, int, size_t));
334 static boolean coff_slurp_line_table
PARAMS ((bfd
*, asection
*));
335 static boolean coff_slurp_symbol_table
PARAMS ((bfd
*));
336 static enum coff_symbol_classification coff_classify_symbol
337 PARAMS ((bfd
*, struct internal_syment
*));
338 static boolean coff_slurp_reloc_table
PARAMS ((bfd
*, asection
*, asymbol
**));
339 static long coff_canonicalize_reloc
340 PARAMS ((bfd
*, asection
*, arelent
**, asymbol
**));
341 #ifndef coff_mkobject_hook
342 static PTR coff_mkobject_hook
PARAMS ((bfd
*, PTR
, PTR
));
345 /* void warning(); */
347 /* Return a word with STYP_* (scnhdr.s_flags) flags set to represent
348 the incoming SEC_* flags. The inverse of this function is
349 styp_to_sec_flags(). NOTE: If you add to/change this routine, you
350 should probably mirror the changes in styp_to_sec_flags(). */
355 sec_to_styp_flags (sec_name
, sec_flags
)
356 CONST
char *sec_name
;
361 if (!strcmp (sec_name
, _TEXT
))
363 styp_flags
= STYP_TEXT
;
365 else if (!strcmp (sec_name
, _DATA
))
367 styp_flags
= STYP_DATA
;
369 else if (!strcmp (sec_name
, _BSS
))
371 styp_flags
= STYP_BSS
;
374 else if (!strcmp (sec_name
, _COMMENT
))
376 styp_flags
= STYP_INFO
;
377 #endif /* _COMMENT */
380 else if (!strcmp (sec_name
, _LIB
))
382 styp_flags
= STYP_LIB
;
386 else if (!strcmp (sec_name
, _LIT
))
388 styp_flags
= STYP_LIT
;
391 else if (!strcmp (sec_name
, ".debug"))
394 styp_flags
= STYP_DEBUG
;
396 styp_flags
= STYP_INFO
;
399 else if (!strncmp (sec_name
, ".stab", 5))
401 styp_flags
= STYP_INFO
;
404 else if (!strcmp (sec_name
, _PAD
))
406 styp_flags
= STYP_PAD
;
408 else if (!strcmp (sec_name
, _LOADER
))
410 styp_flags
= STYP_LOADER
;
413 /* Try and figure out what it should be */
414 else if (sec_flags
& SEC_CODE
)
416 styp_flags
= STYP_TEXT
;
418 else if (sec_flags
& SEC_DATA
)
420 styp_flags
= STYP_DATA
;
422 else if (sec_flags
& SEC_READONLY
)
424 #ifdef STYP_LIT /* 29k readonly text/data section */
425 styp_flags
= STYP_LIT
;
427 styp_flags
= STYP_TEXT
;
428 #endif /* STYP_LIT */
430 else if (sec_flags
& SEC_LOAD
)
432 styp_flags
= STYP_TEXT
;
434 else if (sec_flags
& SEC_ALLOC
)
436 styp_flags
= STYP_BSS
;
440 if ((sec_flags
& (SEC_NEVER_LOAD
| SEC_COFF_SHARED_LIBRARY
)) != 0)
441 styp_flags
|= STYP_NOLOAD
;
447 #else /* COFF_WITH_PE */
449 /* The PE version; see above for the general comments. The non-PE
450 case seems to be more guessing, and breaks PE format; specifically,
451 .rdata is readonly, but it sure ain't text. Really, all this
452 should be set up properly in gas (or whatever assembler is in use),
453 and honor whatever objcopy/strip, etc. sent us as input. */
456 sec_to_styp_flags (sec_name
, sec_flags
)
457 const char *sec_name ATTRIBUTE_UNUSED
;
462 /* caution: there are at least three groups of symbols that have
463 very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*.
464 SEC_* are the BFD internal flags, used for generic BFD
465 information. STYP_* are the COFF section flags which appear in
466 COFF files. IMAGE_SCN_* are the PE section flags which appear in
467 PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap,
468 but there are more IMAGE_SCN_* flags. */
473 if ((sec_flags
& SEC_CODE
) != 0)
474 styp_flags
|= IMAGE_SCN_CNT_CODE
;
475 if ((sec_flags
& SEC_DATA
) != 0)
476 styp_flags
|= IMAGE_SCN_CNT_INITIALIZED_DATA
;
477 if ((sec_flags
& SEC_ALLOC
) != 0 && (sec_flags
& SEC_LOAD
) == 0)
478 styp_flags
|= IMAGE_SCN_CNT_UNINITIALIZED_DATA
; /* ==STYP_BSS */
480 /* skip CONSTRUCTOR */
483 if ((sec_flags
& (SEC_NEVER_LOAD
| SEC_COFF_SHARED_LIBRARY
)) != 0)
484 styp_flags
|= STYP_NOLOAD
;
486 if ((sec_flags
& SEC_IS_COMMON
) != 0)
487 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
488 if ((sec_flags
& SEC_DEBUGGING
) != 0)
489 styp_flags
|= IMAGE_SCN_MEM_DISCARDABLE
;
490 if ((sec_flags
& SEC_EXCLUDE
) != 0)
491 styp_flags
|= IMAGE_SCN_LNK_REMOVE
;
492 if ((sec_flags
& SEC_NEVER_LOAD
) != 0)
493 styp_flags
|= IMAGE_SCN_LNK_REMOVE
;
496 if (sec_flags
& SEC_LINK_ONCE
)
497 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
498 /* skip LINK_DUPLICATES */
499 /* skip LINKER_CREATED */
501 /* For now, the read/write bits are mapped onto SEC_READONLY, even
502 though the semantics don't quite match. The bits from the input
503 are retained in pei_section_data(abfd, section)->pe_flags */
505 styp_flags
|= IMAGE_SCN_MEM_READ
; /* always readable. */
506 if ((sec_flags
& SEC_READONLY
) == 0)
507 styp_flags
|= IMAGE_SCN_MEM_WRITE
; /* Invert READONLY for write */
508 if (sec_flags
& SEC_CODE
)
509 styp_flags
|= IMAGE_SCN_MEM_EXECUTE
; /* CODE->EXECUTE */
510 if (sec_flags
& SEC_SHARED
)
511 styp_flags
|= IMAGE_SCN_MEM_SHARED
; /* Shared remains meaningful */
516 #endif /* COFF_WITH_PE */
518 /* Return a word with SEC_* flags set to represent the incoming STYP_*
519 flags (from scnhdr.s_flags). The inverse of this function is
520 sec_to_styp_flags(). NOTE: If you add to/change this routine, you
521 should probably mirror the changes in sec_to_styp_flags(). */
526 styp_to_sec_flags (abfd
, hdr
, name
, section
)
527 bfd
*abfd ATTRIBUTE_UNUSED
;
530 asection
*section ATTRIBUTE_UNUSED
;
532 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
533 long styp_flags
= internal_s
->s_flags
;
534 flagword sec_flags
= 0;
537 if (styp_flags
& STYP_NOLOAD
)
539 sec_flags
|= SEC_NEVER_LOAD
;
541 #endif /* STYP_NOLOAD */
543 /* For 386 COFF, at least, an unloadable text or data section is
544 actually a shared library section. */
545 if (styp_flags
& STYP_TEXT
)
547 if (sec_flags
& SEC_NEVER_LOAD
)
548 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
550 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
552 else if (styp_flags
& STYP_DATA
)
554 if (sec_flags
& SEC_NEVER_LOAD
)
555 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
557 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
559 else if (styp_flags
& STYP_BSS
)
561 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
562 if (sec_flags
& SEC_NEVER_LOAD
)
563 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
566 sec_flags
|= SEC_ALLOC
;
568 else if (styp_flags
& STYP_INFO
)
570 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
571 defined. coff_compute_section_file_positions uses
572 COFF_PAGE_SIZE to ensure that the low order bits of the
573 section VMA and the file offset match. If we don't know
574 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
575 and demand page loading of the file will fail. */
576 #if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS)
577 sec_flags
|= SEC_DEBUGGING
;
580 else if (styp_flags
& STYP_PAD
)
584 else if (strcmp (name
, _TEXT
) == 0)
586 if (sec_flags
& SEC_NEVER_LOAD
)
587 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
589 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
591 else if (strcmp (name
, _DATA
) == 0)
593 if (sec_flags
& SEC_NEVER_LOAD
)
594 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
596 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
598 else if (strcmp (name
, _BSS
) == 0)
600 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
601 if (sec_flags
& SEC_NEVER_LOAD
)
602 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
605 sec_flags
|= SEC_ALLOC
;
607 else if (strcmp (name
, ".debug") == 0
609 || strcmp (name
, _COMMENT
) == 0
611 || strncmp (name
, ".stab", 5) == 0)
613 #ifdef COFF_PAGE_SIZE
614 sec_flags
|= SEC_DEBUGGING
;
618 else if (strcmp (name
, _LIB
) == 0)
622 else if (strcmp (name
, _LIT
) == 0)
624 sec_flags
= SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
;
629 sec_flags
|= SEC_ALLOC
| SEC_LOAD
;
632 #ifdef STYP_LIT /* A29k readonly text/data section type */
633 if ((styp_flags
& STYP_LIT
) == STYP_LIT
)
635 sec_flags
= (SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
);
637 #endif /* STYP_LIT */
638 #ifdef STYP_OTHER_LOAD /* Other loaded sections */
639 if (styp_flags
& STYP_OTHER_LOAD
)
641 sec_flags
= (SEC_LOAD
| SEC_ALLOC
);
643 #endif /* STYP_SDATA */
645 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
646 /* As a GNU extension, if the name begins with .gnu.linkonce, we
647 only link a single copy of the section. This is used to support
648 g++. g++ will emit each template expansion in its own section.
649 The symbols will be defined as weak, so that multiple definitions
650 are permitted. The GNU linker extension is to actually discard
651 all but one of the sections. */
652 if (strncmp (name
, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0)
653 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
659 #else /* COFF_WITH_PE */
661 /* The PE version; see above for the general comments.
663 Since to set the SEC_LINK_ONCE and associated flags, we have to
664 look at the symbol table anyway, we return the symbol table index
665 of the symbol being used as the COMDAT symbol. This is admittedly
666 ugly, but there's really nowhere else that we have access to the
667 required information. FIXME: Is the COMDAT symbol index used for
668 any purpose other than objdump? */
671 styp_to_sec_flags (abfd
, hdr
, name
, section
)
672 bfd
*abfd ATTRIBUTE_UNUSED
;
677 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
678 long styp_flags
= internal_s
->s_flags
;
679 flagword sec_flags
= 0;
681 if (styp_flags
& STYP_DSECT
)
682 abort (); /* Don't know what to do */
683 #ifdef SEC_NEVER_LOAD
684 if (styp_flags
& STYP_NOLOAD
)
685 sec_flags
|= SEC_NEVER_LOAD
;
687 if (styp_flags
& STYP_GROUP
)
688 abort (); /* Don't know what to do */
689 /* skip IMAGE_SCN_TYPE_NO_PAD */
690 if (styp_flags
& STYP_COPY
)
691 abort (); /* Don't know what to do */
692 if (styp_flags
& IMAGE_SCN_CNT_CODE
)
693 sec_flags
|= SEC_CODE
| SEC_ALLOC
| SEC_LOAD
;
694 if (styp_flags
& IMAGE_SCN_CNT_INITIALIZED_DATA
)
695 sec_flags
|= SEC_DATA
| SEC_ALLOC
| SEC_LOAD
;
696 if (styp_flags
& IMAGE_SCN_CNT_UNINITIALIZED_DATA
)
697 sec_flags
|= SEC_ALLOC
;
698 if (styp_flags
& IMAGE_SCN_LNK_OTHER
)
699 abort (); /* Don't know what to do */
700 if (styp_flags
& IMAGE_SCN_LNK_INFO
)
702 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
703 defined. coff_compute_section_file_positions uses
704 COFF_PAGE_SIZE to ensure that the low order bits of the
705 section VMA and the file offset match. If we don't know
706 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
707 and demand page loading of the file will fail. */
708 #ifdef COFF_PAGE_SIZE
709 sec_flags
|= SEC_DEBUGGING
;
712 if (styp_flags
& STYP_OVER
)
713 abort (); /* Don't know what to do */
714 if (styp_flags
& IMAGE_SCN_LNK_REMOVE
)
715 sec_flags
|= SEC_EXCLUDE
;
717 if (styp_flags
& IMAGE_SCN_MEM_SHARED
)
718 sec_flags
|= SEC_SHARED
;
719 /* COMDAT: see below */
720 if (styp_flags
& IMAGE_SCN_MEM_DISCARDABLE
)
721 sec_flags
|= SEC_DEBUGGING
;
722 if (styp_flags
& IMAGE_SCN_MEM_NOT_CACHED
)
723 abort ();/* Don't know what to do */
724 if (styp_flags
& IMAGE_SCN_MEM_NOT_PAGED
)
725 abort (); /* Don't know what to do */
727 /* We infer from the distinct read/write/execute bits the settings
728 of some of the bfd flags; the actual values, should we need them,
729 are also in pei_section_data (abfd, section)->pe_flags. */
731 if (styp_flags
& IMAGE_SCN_MEM_EXECUTE
)
732 sec_flags
|= SEC_CODE
; /* Probably redundant */
733 /* IMAGE_SCN_MEM_READ is simply ignored, assuming it always to be true. */
734 if ((styp_flags
& IMAGE_SCN_MEM_WRITE
) == 0)
735 sec_flags
|= SEC_READONLY
;
737 /* COMDAT gets very special treatment. */
738 if (styp_flags
& IMAGE_SCN_LNK_COMDAT
)
740 sec_flags
|= SEC_LINK_ONCE
;
742 /* Unfortunately, the PE format stores essential information in
743 the symbol table, of all places. We need to extract that
744 information now, so that objdump and the linker will know how
745 to handle the section without worrying about the symbols. We
746 can't call slurp_symtab, because the linker doesn't want the
749 /* COMDAT sections are special. The first symbol is the section
750 symbol, which tells what kind of COMDAT section it is. The
751 second symbol is the "comdat symbol" - the one with the
752 unique name. GNU uses the section symbol for the unique
753 name; MS uses ".text" for every comdat section. Sigh. - DJ */
755 /* This is not mirrored in sec_to_styp_flags(), but there
756 doesn't seem to be a need to, either, and it would at best be
759 if (_bfd_coff_get_external_symbols (abfd
))
761 bfd_byte
*esymstart
, *esym
, *esymend
;
763 esymstart
= esym
= (bfd_byte
*) obj_coff_external_syms (abfd
);
764 esymend
= esym
+ obj_raw_syment_count (abfd
) * SYMESZ
;
766 while (esym
< esymend
)
768 struct internal_syment isym
;
769 char buf
[SYMNMLEN
+ 1];
772 bfd_coff_swap_sym_in (abfd
, (PTR
) esym
, (PTR
) &isym
);
774 if (sizeof (internal_s
->s_name
) > SYMNMLEN
)
776 /* This case implies that the matching symbol name
777 will be in the string table. */
781 /* The MS documentation is vague, but it appears to
782 require that n_sclass be C_STAT for both entries;
783 However, the Alpha compiler uses C_EXT for the one
784 with the "real" name, at least for string-pooled
786 if (isym
.n_scnum
== section
->target_index
787 && (isym
.n_sclass
== C_STAT
|| isym
.n_sclass
== C_EXT
)
788 && isym
.n_type
== T_NULL
789 && isym
.n_value
== 0)
791 /* The first TWO entries with the section # are both
792 of interest to us. The first one is the "section
793 symbol" (section name). The second is the comdat
794 symbol name. 'value' must be zero for it to
795 apply. Here, we've found a qualifying entry; we
796 distinguish the first from the second by numaux
797 (which should be 0 for the second). FIXME: We
798 should use the first one first rather than
799 counting on numaux. */
800 if (isym
.n_numaux
== 1)
802 union internal_auxent aux
;
804 symname
= _bfd_coff_internal_syment_name (abfd
, &isym
,
809 if (strcmp (name
, symname
) != 0)
812 /* This is the section symbol. */
814 bfd_coff_swap_aux_in (abfd
, (PTR
) (esym
+ SYMESZ
),
815 isym
.n_type
, isym
.n_sclass
,
816 0, isym
.n_numaux
, (PTR
) &aux
);
818 /* FIXME: Microsoft uses NODUPLICATES and
819 ASSOCIATIVE, but gnu uses ANY and SAME_SIZE.
820 Unfortunately, gnu doesn't do the comdat
821 symbols right. So, until we can fix it to do
822 the right thing, we are temporarily disabling
823 comdats for the MS types (they're used in
824 DLLs and C++, but we don't support *their*
825 C++ libraries anyway - DJ. */
827 switch (aux
.x_scn
.x_comdat
)
829 case IMAGE_COMDAT_SELECT_NODUPLICATES
:
830 /* FIXME: This is bogus. It breaks cross-compilers. */
832 sec_flags
|= SEC_LINK_DUPLICATES_ONE_ONLY
;
834 sec_flags
&= ~SEC_LINK_ONCE
;
838 case IMAGE_COMDAT_SELECT_ANY
:
839 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
842 case IMAGE_COMDAT_SELECT_SAME_SIZE
:
843 sec_flags
|= SEC_LINK_DUPLICATES_SAME_SIZE
;
846 case IMAGE_COMDAT_SELECT_EXACT_MATCH
:
847 /* Not yet fully implemented in the linker. */
848 sec_flags
|= SEC_LINK_DUPLICATES_SAME_CONTENTS
;
851 case IMAGE_COMDAT_SELECT_ASSOCIATIVE
:
852 /* FIXME: This is bogus. It breaks cross-compilers. */
854 /* FIXME: This is not currently implemented. */
855 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
857 sec_flags
&= ~SEC_LINK_ONCE
;
862 /* FIXME: Shouldn't this be at least a
864 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
872 /* This should be the the second symbol with the
873 section #. It is the actual symbol name.
874 Intel puts the two adjacent, but Alpha (at
875 least) spreads them out. */
878 bfd_alloc (abfd
, sizeof (struct bfd_comdat_info
));
879 if (section
->comdat
== NULL
)
881 section
->comdat
->symbol
= (esym
- esymstart
) / SYMESZ
;
882 symname
= _bfd_coff_internal_syment_name (abfd
, &isym
,
887 newname
= bfd_alloc (abfd
, strlen (symname
) + 1);
890 strcpy (newname
, symname
);
891 section
->comdat
->name
= newname
;
897 esym
+= (isym
.n_numaux
+ 1) * SYMESZ
;
902 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
903 /* As a GNU extension, if the name begins with .gnu.linkonce, we
904 only link a single copy of the section. This is used to support
905 g++. g++ will emit each template expansion in its own section.
906 The symbols will be defined as weak, so that multiple definitions
907 are permitted. The GNU linker extension is to actually discard
908 all but one of the sections. */
909 if (strncmp (name
, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0)
910 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
916 #endif /* COFF_WITH_PE */
918 #define get_index(symbol) ((symbol)->udata.i)
922 bfd_coff_backend_data
926 .{* COFF symbol classifications. *}
928 .enum coff_symbol_classification
930 . {* Global symbol. *}
931 . COFF_SYMBOL_GLOBAL,
932 . {* Common symbol. *}
933 . COFF_SYMBOL_COMMON,
934 . {* Undefined symbol. *}
935 . COFF_SYMBOL_UNDEFINED,
936 . {* Local symbol. *}
938 . {* PE section symbol. *}
939 . COFF_SYMBOL_PE_SECTION
942 Special entry points for gdb to swap in coff symbol table parts:
945 . void (*_bfd_coff_swap_aux_in) PARAMS ((
954 . void (*_bfd_coff_swap_sym_in) PARAMS ((
959 . void (*_bfd_coff_swap_lineno_in) PARAMS ((
965 Special entry points for gas to swap out coff parts:
967 . unsigned int (*_bfd_coff_swap_aux_out) PARAMS ((
976 . unsigned int (*_bfd_coff_swap_sym_out) PARAMS ((
981 . unsigned int (*_bfd_coff_swap_lineno_out) PARAMS ((
986 . unsigned int (*_bfd_coff_swap_reloc_out) PARAMS ((
991 . unsigned int (*_bfd_coff_swap_filehdr_out) PARAMS ((
996 . unsigned int (*_bfd_coff_swap_aouthdr_out) PARAMS ((
1001 . unsigned int (*_bfd_coff_swap_scnhdr_out) PARAMS ((
1007 Special entry points for generic COFF routines to call target
1008 dependent COFF routines:
1010 . unsigned int _bfd_filhsz;
1011 . unsigned int _bfd_aoutsz;
1012 . unsigned int _bfd_scnhsz;
1013 . unsigned int _bfd_symesz;
1014 . unsigned int _bfd_auxesz;
1015 . unsigned int _bfd_relsz;
1016 . unsigned int _bfd_linesz;
1017 . unsigned int _bfd_filnmlen;
1018 . boolean _bfd_coff_long_filenames;
1019 . boolean _bfd_coff_long_section_names;
1020 . unsigned int _bfd_coff_default_section_alignment_power;
1021 . void (*_bfd_coff_swap_filehdr_in) PARAMS ((
1025 . void (*_bfd_coff_swap_aouthdr_in) PARAMS ((
1029 . void (*_bfd_coff_swap_scnhdr_in) PARAMS ((
1033 . void (*_bfd_coff_swap_reloc_in) PARAMS ((
1037 . boolean (*_bfd_coff_bad_format_hook) PARAMS ((
1039 . PTR internal_filehdr));
1040 . boolean (*_bfd_coff_set_arch_mach_hook) PARAMS ((
1042 . PTR internal_filehdr));
1043 . PTR (*_bfd_coff_mkobject_hook) PARAMS ((
1045 . PTR internal_filehdr,
1046 . PTR internal_aouthdr));
1047 . flagword (*_bfd_styp_to_sec_flags_hook) PARAMS ((
1049 . PTR internal_scnhdr,
1051 . asection *section));
1052 . void (*_bfd_set_alignment_hook) PARAMS ((
1055 . PTR internal_scnhdr));
1056 . boolean (*_bfd_coff_slurp_symbol_table) PARAMS ((
1058 . boolean (*_bfd_coff_symname_in_debug) PARAMS ((
1060 . struct internal_syment *sym));
1061 . boolean (*_bfd_coff_pointerize_aux_hook) PARAMS ((
1063 . combined_entry_type *table_base,
1064 . combined_entry_type *symbol,
1065 . unsigned int indaux,
1066 . combined_entry_type *aux));
1067 . boolean (*_bfd_coff_print_aux) PARAMS ((
1070 . combined_entry_type *table_base,
1071 . combined_entry_type *symbol,
1072 . combined_entry_type *aux,
1073 . unsigned int indaux));
1074 . void (*_bfd_coff_reloc16_extra_cases) PARAMS ((
1076 . struct bfd_link_info *link_info,
1077 . struct bfd_link_order *link_order,
1080 . unsigned int *src_ptr,
1081 . unsigned int *dst_ptr));
1082 . int (*_bfd_coff_reloc16_estimate) PARAMS ((
1084 . asection *input_section,
1086 . unsigned int shrink,
1087 . struct bfd_link_info *link_info));
1088 . enum coff_symbol_classification (*_bfd_coff_classify_symbol) PARAMS ((
1090 . struct internal_syment *));
1091 . boolean (*_bfd_coff_compute_section_file_positions) PARAMS ((
1093 . boolean (*_bfd_coff_start_final_link) PARAMS ((
1095 . struct bfd_link_info *info));
1096 . boolean (*_bfd_coff_relocate_section) PARAMS ((
1098 . struct bfd_link_info *info,
1100 . asection *input_section,
1101 . bfd_byte *contents,
1102 . struct internal_reloc *relocs,
1103 . struct internal_syment *syms,
1104 . asection **sections));
1105 . reloc_howto_type *(*_bfd_coff_rtype_to_howto) PARAMS ((
1108 . struct internal_reloc *rel,
1109 . struct coff_link_hash_entry *h,
1110 . struct internal_syment *sym,
1111 . bfd_vma *addendp));
1112 . boolean (*_bfd_coff_adjust_symndx) PARAMS ((
1114 . struct bfd_link_info *info,
1117 . struct internal_reloc *reloc,
1118 . boolean *adjustedp));
1119 . boolean (*_bfd_coff_link_add_one_symbol) PARAMS ((
1120 . struct bfd_link_info *info,
1124 . asection *section,
1126 . const char *string,
1129 . struct bfd_link_hash_entry **hashp));
1131 . boolean (*_bfd_coff_link_output_has_begun) PARAMS ((
1133 . struct coff_final_link_info * pfinfo));
1134 . boolean (*_bfd_coff_final_link_postscript) PARAMS ((
1136 . struct coff_final_link_info * pfinfo));
1138 .} bfd_coff_backend_data;
1140 .#define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
1142 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
1143 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
1145 .#define bfd_coff_swap_sym_in(a,e,i) \
1146 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
1148 .#define bfd_coff_swap_lineno_in(a,e,i) \
1149 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
1151 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
1152 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
1154 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
1155 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
1157 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
1158 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
1160 .#define bfd_coff_swap_sym_out(abfd, i,o) \
1161 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
1163 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
1164 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
1166 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
1167 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
1169 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
1170 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
1172 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1173 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1174 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1175 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1176 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1177 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1178 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
1179 .#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
1180 .#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames)
1181 .#define bfd_coff_long_section_names(abfd) \
1182 . (coff_backend_info (abfd)->_bfd_coff_long_section_names)
1183 .#define bfd_coff_default_section_alignment_power(abfd) \
1184 . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
1185 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
1186 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
1188 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
1189 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
1191 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
1192 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
1194 .#define bfd_coff_swap_reloc_in(abfd, i, o) \
1195 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
1197 .#define bfd_coff_bad_format_hook(abfd, filehdr) \
1198 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
1200 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
1201 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
1202 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
1203 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr))
1205 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section)\
1206 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1207 . (abfd, scnhdr, name, section))
1209 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
1210 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
1212 .#define bfd_coff_slurp_symbol_table(abfd)\
1213 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
1215 .#define bfd_coff_symname_in_debug(abfd, sym)\
1216 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
1218 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
1219 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1220 . (abfd, file, base, symbol, aux, indaux))
1222 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\
1223 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1224 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
1226 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
1227 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1228 . (abfd, section, reloc, shrink, link_info))
1230 .#define bfd_coff_classify_symbol(abfd, sym)\
1231 . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1234 .#define bfd_coff_compute_section_file_positions(abfd)\
1235 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1238 .#define bfd_coff_start_final_link(obfd, info)\
1239 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1241 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
1242 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1243 . (obfd, info, ibfd, o, con, rel, isyms, secs))
1244 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
1245 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1246 . (abfd, sec, rel, h, sym, addendp))
1247 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
1248 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1249 . (obfd, info, ibfd, sec, rel, adjustedp))
1250 .#define bfd_coff_link_add_one_symbol(info,abfd,name,flags,section,value,string,cp,coll,hashp)\
1251 . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1252 . (info, abfd, name, flags, section, value, string, cp, coll, hashp))
1254 .#define bfd_coff_link_output_has_begun(a,p) \
1255 . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a,p))
1256 .#define bfd_coff_final_link_postscript(a,p) \
1257 . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a,p))
1261 /* See whether the magic number matches. */
1264 coff_bad_format_hook (abfd
, filehdr
)
1265 bfd
* abfd ATTRIBUTE_UNUSED
;
1268 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1270 if (BADMAG (*internal_f
))
1273 /* if the optional header is NULL or not the correct size then
1274 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1275 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1276 optional header is of a different size.
1278 But the mips keeps extra stuff in it's opthdr, so dont check
1282 #if defined(M88) || defined(I960)
1283 if (internal_f
->f_opthdr
!= 0 && AOUTSZ
!= internal_f
->f_opthdr
)
1290 /* Check whether this section uses an alignment other than the
1294 coff_set_custom_section_alignment (abfd
, section
, alignment_table
, table_size
)
1295 bfd
*abfd ATTRIBUTE_UNUSED
;
1297 const struct coff_section_alignment_entry
*alignment_table
;
1298 const unsigned int table_size
;
1300 const unsigned int default_alignment
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1303 for (i
= 0; i
< table_size
; ++i
)
1305 const char *secname
= bfd_get_section_name (abfd
, section
);
1306 if (alignment_table
[i
].comparison_length
== (unsigned int) -1
1307 ? strcmp (alignment_table
[i
].name
, secname
) == 0
1308 : strncmp (alignment_table
[i
].name
, secname
,
1309 alignment_table
[i
].comparison_length
) == 0)
1312 if (i
>= table_size
)
1315 if (alignment_table
[i
].default_alignment_min
!= COFF_ALIGNMENT_FIELD_EMPTY
1316 && default_alignment
< alignment_table
[i
].default_alignment_min
)
1319 if (alignment_table
[i
].default_alignment_max
!= COFF_ALIGNMENT_FIELD_EMPTY
1320 && default_alignment
> alignment_table
[i
].default_alignment_max
)
1323 section
->alignment_power
= alignment_table
[i
].alignment_power
;
1326 /* Custom section alignment records. */
1328 static const struct coff_section_alignment_entry
1329 coff_section_alignment_table
[] =
1331 #ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1332 COFF_SECTION_ALIGNMENT_ENTRIES
,
1334 /* There must not be any gaps between .stabstr sections. */
1335 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1336 1, COFF_ALIGNMENT_FIELD_EMPTY
, 0 },
1337 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1338 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1339 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1340 /* Similarly for the .ctors and .dtors sections. */
1341 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1342 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1343 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1344 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 }
1347 static const unsigned int coff_section_alignment_table_size
=
1348 sizeof coff_section_alignment_table
/ sizeof coff_section_alignment_table
[0];
1350 /* Initialize a section structure with information peculiar to this
1351 particular implementation of COFF. */
1354 coff_new_section_hook (abfd
, section
)
1358 combined_entry_type
*native
;
1360 section
->alignment_power
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1363 if (xcoff_data (abfd
)->text_align_power
!= 0
1364 && strcmp (bfd_get_section_name (abfd
, section
), ".text") == 0)
1365 section
->alignment_power
= xcoff_data (abfd
)->text_align_power
;
1366 if (xcoff_data (abfd
)->data_align_power
!= 0
1367 && strcmp (bfd_get_section_name (abfd
, section
), ".data") == 0)
1368 section
->alignment_power
= xcoff_data (abfd
)->data_align_power
;
1371 /* Allocate aux records for section symbols, to store size and
1374 @@ The 10 is a guess at a plausible maximum number of aux entries
1375 (but shouldn't be a constant). */
1376 native
= ((combined_entry_type
*)
1377 bfd_zalloc (abfd
, sizeof (combined_entry_type
) * 10));
1381 /* We don't need to set up n_name, n_value, or n_scnum in the native
1382 symbol information, since they'll be overriden by the BFD symbol
1383 anyhow. However, we do need to set the type and storage class,
1384 in case this symbol winds up getting written out. The value 0
1385 for n_numaux is already correct. */
1387 native
->u
.syment
.n_type
= T_NULL
;
1388 native
->u
.syment
.n_sclass
= C_STAT
;
1390 coffsymbol (section
->symbol
)->native
= native
;
1392 coff_set_custom_section_alignment (abfd
, section
,
1393 coff_section_alignment_table
,
1394 coff_section_alignment_table_size
);
1399 #ifdef COFF_ALIGN_IN_SECTION_HEADER
1401 /* Set the alignment of a BFD section. */
1403 static void coff_set_alignment_hook
PARAMS ((bfd
*, asection
*, PTR
));
1406 coff_set_alignment_hook (abfd
, section
, scnhdr
)
1407 bfd
* abfd ATTRIBUTE_UNUSED
;
1411 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1415 /* Extract ALIGN from 2**ALIGN stored in section header */
1416 for (i
= 0; i
< 32; i
++)
1417 if ((1 << i
) >= hdr
->s_align
)
1421 /* TI tools hijack bits 8-11 for the alignment */
1422 i
= (hdr
->s_flags
>> 8) & 0xF ;
1424 section
->alignment_power
= i
;
1427 #else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1430 /* a couple of macros to help setting the alignment power field */
1431 #define ALIGN_SET(field,x,y) \
1432 if (((field) & IMAGE_SCN_ALIGN_64BYTES) == x )\
1434 section->alignment_power = y;\
1437 #define ELIFALIGN_SET(field,x,y) \
1438 else if (( (field) & IMAGE_SCN_ALIGN_64BYTES) == x ) \
1440 section->alignment_power = y;\
1443 static void coff_set_alignment_hook
PARAMS ((bfd
*, asection
*, PTR
));
1446 coff_set_alignment_hook (abfd
, section
, scnhdr
)
1447 bfd
* abfd ATTRIBUTE_UNUSED
;
1451 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1453 ALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_64BYTES
, 6)
1454 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_32BYTES
, 5)
1455 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_16BYTES
, 4)
1456 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_8BYTES
, 3)
1457 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_4BYTES
, 2)
1458 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_2BYTES
, 1)
1459 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_1BYTES
, 0)
1461 /* In a PE image file, the s_paddr field holds the virtual size of a
1462 section, while the s_size field holds the raw size. We also keep
1463 the original section flag value, since not every bit can be
1464 mapped onto a generic BFD section bit. */
1465 if (coff_section_data (abfd
, section
) == NULL
)
1467 section
->used_by_bfd
=
1468 (PTR
) bfd_zalloc (abfd
, sizeof (struct coff_section_tdata
));
1469 if (section
->used_by_bfd
== NULL
)
1471 /* FIXME: Return error. */
1475 if (pei_section_data (abfd
, section
) == NULL
)
1477 coff_section_data (abfd
, section
)->tdata
=
1478 (PTR
) bfd_zalloc (abfd
, sizeof (struct pei_section_tdata
));
1479 if (coff_section_data (abfd
, section
)->tdata
== NULL
)
1481 /* FIXME: Return error. */
1485 pei_section_data (abfd
, section
)->virt_size
= hdr
->s_paddr
;
1486 pei_section_data (abfd
, section
)->pe_flags
= hdr
->s_flags
;
1488 section
->lma
= hdr
->s_vaddr
;
1491 #undef ELIFALIGN_SET
1493 #else /* ! COFF_WITH_PE */
1496 /* We grossly abuse this function to handle XCOFF overflow headers.
1497 When we see one, we correct the reloc and line number counts in the
1498 real header, and remove the section we just created. */
1500 static void coff_set_alignment_hook
PARAMS ((bfd
*, asection
*, PTR
));
1503 coff_set_alignment_hook (abfd
, section
, scnhdr
)
1508 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1512 if ((hdr
->s_flags
& STYP_OVRFLO
) == 0)
1515 real_sec
= coff_section_from_bfd_index (abfd
, hdr
->s_nreloc
);
1516 if (real_sec
== NULL
)
1519 real_sec
->reloc_count
= hdr
->s_paddr
;
1520 real_sec
->lineno_count
= hdr
->s_vaddr
;
1522 for (ps
= &abfd
->sections
; *ps
!= NULL
; ps
= &(*ps
)->next
)
1527 --abfd
->section_count
;
1533 #else /* ! RS6000COFF_C */
1535 #define coff_set_alignment_hook \
1536 ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void)
1538 #endif /* ! RS6000COFF_C */
1539 #endif /* ! COFF_WITH_PE */
1540 #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
1542 #ifndef coff_mkobject
1544 static boolean coff_mkobject
PARAMS ((bfd
*));
1547 coff_mkobject (abfd
)
1550 coff_data_type
*coff
;
1552 abfd
->tdata
.coff_obj_data
= (struct coff_tdata
*) bfd_zalloc (abfd
, sizeof (coff_data_type
));
1553 if (abfd
->tdata
.coff_obj_data
== 0)
1555 coff
= coff_data (abfd
);
1556 coff
->symbols
= (coff_symbol_type
*) NULL
;
1557 coff
->conversion_table
= (unsigned int *) NULL
;
1558 coff
->raw_syments
= (struct coff_ptr_struct
*) NULL
;
1559 coff
->relocbase
= 0;
1560 coff
->local_toc_sym_map
= 0;
1562 /* make_abs_section(abfd);*/
1568 /* Create the COFF backend specific information. */
1569 #ifndef coff_mkobject_hook
1571 coff_mkobject_hook (abfd
, filehdr
, aouthdr
)
1574 PTR aouthdr ATTRIBUTE_UNUSED
;
1576 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1577 coff_data_type
*coff
;
1579 if (coff_mkobject (abfd
) == false)
1582 coff
= coff_data (abfd
);
1584 coff
->sym_filepos
= internal_f
->f_symptr
;
1586 /* These members communicate important constants about the symbol
1587 table to GDB's symbol-reading code. These `constants'
1588 unfortunately vary among coff implementations... */
1589 coff
->local_n_btmask
= N_BTMASK
;
1590 coff
->local_n_btshft
= N_BTSHFT
;
1591 coff
->local_n_tmask
= N_TMASK
;
1592 coff
->local_n_tshift
= N_TSHIFT
;
1593 coff
->local_symesz
= SYMESZ
;
1594 coff
->local_auxesz
= AUXESZ
;
1595 coff
->local_linesz
= LINESZ
;
1597 obj_raw_syment_count (abfd
) =
1598 obj_conv_table_size (abfd
) =
1599 internal_f
->f_nsyms
;
1602 if ((internal_f
->f_flags
& F_SHROBJ
) != 0)
1603 abfd
->flags
|= DYNAMIC
;
1604 if (aouthdr
!= NULL
&& internal_f
->f_opthdr
>= AOUTSZ
)
1606 struct internal_aouthdr
*internal_a
=
1607 (struct internal_aouthdr
*) aouthdr
;
1608 struct xcoff_tdata
*xcoff
;
1610 xcoff
= xcoff_data (abfd
);
1611 xcoff
->full_aouthdr
= true;
1612 xcoff
->toc
= internal_a
->o_toc
;
1613 xcoff
->sntoc
= internal_a
->o_sntoc
;
1614 xcoff
->snentry
= internal_a
->o_snentry
;
1615 xcoff
->text_align_power
= internal_a
->o_algntext
;
1616 xcoff
->data_align_power
= internal_a
->o_algndata
;
1617 xcoff
->modtype
= internal_a
->o_modtype
;
1618 xcoff
->cputype
= internal_a
->o_cputype
;
1619 xcoff
->maxdata
= internal_a
->o_maxdata
;
1620 xcoff
->maxstack
= internal_a
->o_maxstack
;
1625 /* Set the flags field from the COFF header read in */
1626 if (! _bfd_coff_arm_set_private_flags (abfd
, internal_f
->f_flags
))
1631 /* FIXME: I'm not sure this is ever executed, since peicode.h
1632 defines coff_mkobject_hook. */
1633 if ((internal_f
->f_flags
& IMAGE_FILE_DEBUG_STRIPPED
) == 0)
1634 abfd
->flags
|= HAS_DEBUG
;
1641 /* Determine the machine architecture and type. FIXME: This is target
1642 dependent because the magic numbers are defined in the target
1643 dependent header files. But there is no particular need for this.
1644 If the magic numbers were moved to a separate file, this function
1645 would be target independent and would also be much more successful
1646 at linking together COFF files for different architectures. */
1649 coff_set_arch_mach_hook (abfd
, filehdr
)
1654 enum bfd_architecture arch
;
1655 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1658 switch (internal_f
->f_magic
)
1662 arch
= bfd_arch_powerpc
;
1663 machine
= 0; /* what does this mean? (krk) */
1669 case I386AIXMAGIC
: /* Danbury PS/2 AIX C Compiler */
1670 case LYNXCOFFMAGIC
: /* shadows the m68k Lynx number below, sigh */
1671 arch
= bfd_arch_i386
;
1675 #ifdef A29K_MAGIC_BIG
1676 case A29K_MAGIC_BIG
:
1677 case A29K_MAGIC_LITTLE
:
1678 arch
= bfd_arch_a29k
;
1684 arch
= bfd_arch_arm
;
1685 switch (internal_f
->f_flags
& F_ARM_ARCHITECTURE_MASK
)
1687 case F_ARM_2
: machine
= bfd_mach_arm_2
; break;
1688 case F_ARM_2a
: machine
= bfd_mach_arm_2a
; break;
1689 case F_ARM_3
: machine
= bfd_mach_arm_3
; break;
1691 case F_ARM_3M
: machine
= bfd_mach_arm_3M
; break;
1692 case F_ARM_4
: machine
= bfd_mach_arm_4
; break;
1693 case F_ARM_4T
: machine
= bfd_mach_arm_4T
; break;
1694 case F_ARM_5
: machine
= bfd_mach_arm_5
; break;
1701 #ifdef MC68KBCSMAGIC
1704 #ifdef APOLLOM68KMAGIC
1705 case APOLLOM68KMAGIC
:
1707 #ifdef LYNXCOFFMAGIC
1710 arch
= bfd_arch_m68k
;
1711 machine
= bfd_mach_m68020
;
1718 arch
= bfd_arch_m88k
;
1724 arch
= bfd_arch_z8k
;
1725 switch (internal_f
->f_flags
& F_MACHMASK
)
1728 machine
= bfd_mach_z8001
;
1731 machine
= bfd_mach_z8002
;
1740 arch
= bfd_arch_i860
;
1747 arch
= bfd_arch_i960
;
1748 switch (F_I960TYPE
& internal_f
->f_flags
)
1752 machine
= bfd_mach_i960_core
;
1755 machine
= bfd_mach_i960_kb_sb
;
1758 machine
= bfd_mach_i960_mc
;
1761 machine
= bfd_mach_i960_xa
;
1764 machine
= bfd_mach_i960_ca
;
1767 machine
= bfd_mach_i960_ka_sa
;
1770 machine
= bfd_mach_i960_jx
;
1773 machine
= bfd_mach_i960_hx
;
1787 if (xcoff_data (abfd
)->cputype
!= -1)
1788 cputype
= xcoff_data (abfd
)->cputype
& 0xff;
1791 /* We did not get a value from the a.out header. If the
1792 file has not been stripped, we may be able to get the
1793 architecture information from the first symbol, if it
1794 is a .file symbol. */
1795 if (obj_raw_syment_count (abfd
) == 0)
1799 bfd_byte buf
[SYMESZ
];
1800 struct internal_syment sym
;
1802 if (bfd_seek (abfd
, obj_sym_filepos (abfd
), SEEK_SET
) != 0
1803 || bfd_read (buf
, 1, SYMESZ
, abfd
) != SYMESZ
)
1805 coff_swap_sym_in (abfd
, (PTR
) buf
, (PTR
) &sym
);
1806 if (sym
.n_sclass
== C_FILE
)
1807 cputype
= sym
.n_type
& 0xff;
1813 /* FIXME: We don't handle all cases here. */
1819 /* PowerPC Macs use the same magic numbers as RS/6000
1820 (because that's how they were bootstrapped originally),
1821 but they are always PowerPC architecture. */
1822 arch
= bfd_arch_powerpc
;
1825 arch
= bfd_arch_rs6000
;
1827 #endif /* POWERMAC */
1831 arch
= bfd_arch_powerpc
;
1834 case 2: /* 64 bit PowerPC */
1835 arch
= bfd_arch_powerpc
;
1839 arch
= bfd_arch_powerpc
;
1843 arch
= bfd_arch_rs6000
;
1853 arch
= bfd_arch_we32k
;
1860 arch
= bfd_arch_h8300
;
1861 machine
= bfd_mach_h8300
;
1862 /* !! FIXME this probably isn't the right place for this */
1863 abfd
->flags
|= BFD_IS_RELAXABLE
;
1869 arch
= bfd_arch_h8300
;
1870 machine
= bfd_mach_h8300h
;
1871 /* !! FIXME this probably isn't the right place for this */
1872 abfd
->flags
|= BFD_IS_RELAXABLE
;
1878 arch
= bfd_arch_h8300
;
1879 machine
= bfd_mach_h8300s
;
1880 /* !! FIXME this probably isn't the right place for this */
1881 abfd
->flags
|= BFD_IS_RELAXABLE
;
1885 #ifdef SH_ARCH_MAGIC_BIG
1886 case SH_ARCH_MAGIC_BIG
:
1887 case SH_ARCH_MAGIC_LITTLE
:
1895 arch
= bfd_arch_h8500
;
1902 #ifdef LYNXCOFFMAGIC
1905 arch
= bfd_arch_sparc
;
1912 arch
= bfd_arch_tic30
;
1916 #ifdef TIC80_ARCH_MAGIC
1917 case TIC80_ARCH_MAGIC
:
1918 arch
= bfd_arch_tic80
;
1924 arch
= bfd_arch_mcore
;
1927 default: /* Unreadable input file type */
1928 arch
= bfd_arch_obscure
;
1932 bfd_default_set_arch_mach (abfd
, arch
, machine
);
1936 #ifdef SYMNAME_IN_DEBUG
1938 static boolean symname_in_debug_hook
1939 PARAMS ((bfd
*, struct internal_syment
*));
1942 symname_in_debug_hook (abfd
, sym
)
1943 bfd
* abfd ATTRIBUTE_UNUSED
;
1944 struct internal_syment
*sym
;
1946 return SYMNAME_IN_DEBUG (sym
) ? true : false;
1951 #define symname_in_debug_hook \
1952 (boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false
1958 /* Handle the csect auxent of a C_EXT or C_HIDEXT symbol. */
1960 static boolean coff_pointerize_aux_hook
1961 PARAMS ((bfd
*, combined_entry_type
*, combined_entry_type
*,
1962 unsigned int, combined_entry_type
*));
1966 coff_pointerize_aux_hook (abfd
, table_base
, symbol
, indaux
, aux
)
1967 bfd
*abfd ATTRIBUTE_UNUSED
;
1968 combined_entry_type
*table_base
;
1969 combined_entry_type
*symbol
;
1970 unsigned int indaux
;
1971 combined_entry_type
*aux
;
1973 int class = symbol
->u
.syment
.n_sclass
;
1975 if ((class == C_EXT
|| class == C_HIDEXT
)
1976 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
1978 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) == XTY_LD
)
1980 aux
->u
.auxent
.x_csect
.x_scnlen
.p
=
1981 table_base
+ aux
->u
.auxent
.x_csect
.x_scnlen
.l
;
1982 aux
->fix_scnlen
= 1;
1985 /* Return true to indicate that the caller should not do any
1986 further work on this auxent. */
1990 /* Return false to indicate that this auxent should be handled by
1998 /* We don't want to pointerize bal entries. */
2000 static boolean coff_pointerize_aux_hook
2001 PARAMS ((bfd
*, combined_entry_type
*, combined_entry_type
*,
2002 unsigned int, combined_entry_type
*));
2006 coff_pointerize_aux_hook (abfd
, table_base
, symbol
, indaux
, aux
)
2007 bfd
*abfd ATTRIBUTE_UNUSED
;
2008 combined_entry_type
*table_base ATTRIBUTE_UNUSED
;
2009 combined_entry_type
*symbol
;
2010 unsigned int indaux
;
2011 combined_entry_type
*aux ATTRIBUTE_UNUSED
;
2013 /* Return true if we don't want to pointerize this aux entry, which
2014 is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */
2016 && (symbol
->u
.syment
.n_sclass
== C_LEAFPROC
2017 || symbol
->u
.syment
.n_sclass
== C_LEAFSTAT
2018 || symbol
->u
.syment
.n_sclass
== C_LEAFEXT
));
2023 #define coff_pointerize_aux_hook 0
2026 #endif /* ! RS6000COFF_C */
2028 /* Print an aux entry. This returns true if it has printed it. */
2030 static boolean coff_print_aux
2031 PARAMS ((bfd
*, FILE *, combined_entry_type
*, combined_entry_type
*,
2032 combined_entry_type
*, unsigned int));
2035 coff_print_aux (abfd
, file
, table_base
, symbol
, aux
, indaux
)
2036 bfd
*abfd ATTRIBUTE_UNUSED
;
2037 FILE *file ATTRIBUTE_UNUSED
;
2038 combined_entry_type
*table_base ATTRIBUTE_UNUSED
;
2039 combined_entry_type
*symbol ATTRIBUTE_UNUSED
;
2040 combined_entry_type
*aux ATTRIBUTE_UNUSED
;
2041 unsigned int indaux ATTRIBUTE_UNUSED
;
2044 if ((symbol
->u
.syment
.n_sclass
== C_EXT
2045 || symbol
->u
.syment
.n_sclass
== C_HIDEXT
)
2046 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2048 /* This is a csect entry. */
2049 fprintf (file
, "AUX ");
2050 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) != XTY_LD
)
2052 BFD_ASSERT (! aux
->fix_scnlen
);
2053 fprintf (file
, "val %5ld", aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2057 fprintf (file
, "indx ");
2058 if (! aux
->fix_scnlen
)
2059 fprintf (file
, "%4ld", aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2061 fprintf (file
, "%4ld",
2062 (long) (aux
->u
.auxent
.x_csect
.x_scnlen
.p
- table_base
));
2065 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2066 aux
->u
.auxent
.x_csect
.x_parmhash
,
2067 (unsigned int) aux
->u
.auxent
.x_csect
.x_snhash
,
2068 SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
),
2069 SMTYP_ALIGN (aux
->u
.auxent
.x_csect
.x_smtyp
),
2070 (unsigned int) aux
->u
.auxent
.x_csect
.x_smclas
,
2071 aux
->u
.auxent
.x_csect
.x_stab
,
2072 (unsigned int) aux
->u
.auxent
.x_csect
.x_snstab
);
2077 /* Return false to indicate that no special action was taken. */
2085 To write relocations, the back end steps though the
2086 canonical relocation table and create an
2087 @code{internal_reloc}. The symbol index to use is removed from
2088 the @code{offset} field in the symbol table supplied. The
2089 address comes directly from the sum of the section base
2090 address and the relocation offset; the type is dug directly
2091 from the howto field. Then the @code{internal_reloc} is
2092 swapped into the shape of an @code{external_reloc} and written
2099 static int compare_arelent_ptr
PARAMS ((const PTR
, const PTR
));
2101 /* AUX's ld wants relocations to be sorted */
2103 compare_arelent_ptr (x
, y
)
2107 const arelent
**a
= (const arelent
**) x
;
2108 const arelent
**b
= (const arelent
**) y
;
2109 bfd_size_type aadr
= (*a
)->address
;
2110 bfd_size_type badr
= (*b
)->address
;
2112 return (aadr
< badr
? -1 : badr
< aadr
? 1 : 0);
2115 #endif /* TARG_AUX */
2118 coff_write_relocs (abfd
, first_undef
)
2124 for (s
= abfd
->sections
; s
!= (asection
*) NULL
; s
= s
->next
)
2127 struct external_reloc dst
;
2133 /* sort relocations before we write them out */
2134 p
= (arelent
**) bfd_malloc (s
->reloc_count
* sizeof (arelent
*));
2135 if (p
== NULL
&& s
->reloc_count
> 0)
2137 memcpy (p
, s
->orelocation
, s
->reloc_count
* sizeof (arelent
*));
2138 qsort (p
, s
->reloc_count
, sizeof (arelent
*), compare_arelent_ptr
);
2141 if (bfd_seek (abfd
, s
->rel_filepos
, SEEK_SET
) != 0)
2143 for (i
= 0; i
< s
->reloc_count
; i
++)
2145 struct internal_reloc n
;
2147 memset ((PTR
) & n
, 0, sizeof (n
));
2149 /* Now we've renumbered the symbols we know where the
2150 undefined symbols live in the table. Check the reloc
2151 entries for symbols who's output bfd isn't the right one.
2152 This is because the symbol was undefined (which means
2153 that all the pointers are never made to point to the same
2154 place). This is a bad thing,'cause the symbols attached
2155 to the output bfd are indexed, so that the relocation
2156 entries know which symbol index they point to. So we
2157 have to look up the output symbol here. */
2159 if (q
->sym_ptr_ptr
[0]->the_bfd
!= abfd
)
2162 const char *sname
= q
->sym_ptr_ptr
[0]->name
;
2163 asymbol
**outsyms
= abfd
->outsymbols
;
2164 for (i
= first_undef
; outsyms
[i
]; i
++)
2166 const char *intable
= outsyms
[i
]->name
;
2167 if (strcmp (intable
, sname
) == 0) {
2168 /* got a hit, so repoint the reloc */
2169 q
->sym_ptr_ptr
= outsyms
+ i
;
2175 n
.r_vaddr
= q
->address
+ s
->vma
;
2178 /* The 29k const/consth reloc pair is a real kludge. The consth
2179 part doesn't have a symbol; it has an offset. So rebuilt
2181 if (q
->howto
->type
== R_IHCONST
)
2182 n
.r_symndx
= q
->addend
;
2187 if (q
->sym_ptr_ptr
== bfd_abs_section_ptr
->symbol_ptr_ptr
)
2188 /* This is a relocation relative to the absolute symbol. */
2192 n
.r_symndx
= get_index ((*(q
->sym_ptr_ptr
)));
2193 /* Take notice if the symbol reloc points to a symbol
2194 we don't have in our symbol table. What should we
2196 if (n
.r_symndx
> obj_conv_table_size (abfd
))
2201 #ifdef SWAP_OUT_RELOC_OFFSET
2202 n
.r_offset
= q
->addend
;
2206 /* Work out reloc type from what is required */
2207 SELECT_RELOC (n
, q
->howto
);
2209 n
.r_type
= q
->howto
->type
;
2211 coff_swap_reloc_out (abfd
, &n
, &dst
);
2212 if (bfd_write ((PTR
) & dst
, 1, RELSZ
, abfd
) != RELSZ
)
2225 /* Set flags and magic number of a coff file from architecture and machine
2226 type. Result is true if we can represent the arch&type, false if not. */
2229 coff_set_flags (abfd
, magicp
, flagsp
)
2231 unsigned int *magicp ATTRIBUTE_UNUSED
;
2232 unsigned short *flagsp ATTRIBUTE_UNUSED
;
2234 switch (bfd_get_arch (abfd
))
2239 switch (bfd_get_mach (abfd
))
2241 case bfd_mach_z8001
:
2244 case bfd_mach_z8002
:
2258 *magicp
= I960ROMAGIC
;
2260 ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC :
2261 I960RWMAGIC); FIXME???
2263 switch (bfd_get_mach (abfd
))
2265 case bfd_mach_i960_core
:
2268 case bfd_mach_i960_kb_sb
:
2271 case bfd_mach_i960_mc
:
2274 case bfd_mach_i960_xa
:
2277 case bfd_mach_i960_ca
:
2280 case bfd_mach_i960_ka_sa
:
2283 case bfd_mach_i960_jx
:
2286 case bfd_mach_i960_hx
:
2299 case bfd_arch_tic30
:
2300 *magicp
= TIC30MAGIC
;
2303 #ifdef TIC80_ARCH_MAGIC
2304 case bfd_arch_tic80
:
2305 *magicp
= TIC80_ARCH_MAGIC
;
2310 * magicp
= ARMMAGIC
;
2312 if (APCS_SET (abfd
))
2314 if (APCS_26_FLAG (abfd
))
2315 * flagsp
|= F_APCS26
;
2317 if (APCS_FLOAT_FLAG (abfd
))
2318 * flagsp
|= F_APCS_FLOAT
;
2320 if (PIC_FLAG (abfd
))
2323 if (INTERWORK_SET (abfd
) && INTERWORK_FLAG (abfd
))
2324 * flagsp
|= F_INTERWORK
;
2325 switch (bfd_get_mach (abfd
))
2327 case bfd_mach_arm_2
: * flagsp
|= F_ARM_2
; break;
2328 case bfd_mach_arm_2a
: * flagsp
|= F_ARM_2a
; break;
2329 case bfd_mach_arm_3
: * flagsp
|= F_ARM_3
; break;
2330 case bfd_mach_arm_3M
: * flagsp
|= F_ARM_3M
; break;
2331 case bfd_mach_arm_4
: * flagsp
|= F_ARM_4
; break;
2332 case bfd_mach_arm_4T
: * flagsp
|= F_ARM_4T
; break;
2333 case bfd_mach_arm_5
: * flagsp
|= F_ARM_5
; break;
2334 case bfd_mach_arm_5T
: * flagsp
|= F_ARM_5
; break; /* XXX - we do not have an F_ARM_5T */
2339 case bfd_arch_powerpc
:
2346 *magicp
= I386MAGIC
;
2348 /* Just overwrite the usual value if we're doing Lynx. */
2349 *magicp
= LYNXCOFFMAGIC
;
2356 *magicp
= I860MAGIC
;
2362 #ifdef APOLLOM68KMAGIC
2363 *magicp
= APOLLO_COFF_VERSION_NUMBER
;
2365 /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */
2366 #ifdef NAMES_HAVE_UNDERSCORE
2367 *magicp
= MC68KBCSMAGIC
;
2369 *magicp
= MC68MAGIC
;
2373 /* Just overwrite the usual value if we're doing Lynx. */
2374 *magicp
= LYNXCOFFMAGIC
;
2382 *magicp
= MC88OMAGIC
;
2387 case bfd_arch_h8300
:
2388 switch (bfd_get_mach (abfd
))
2390 case bfd_mach_h8300
:
2391 *magicp
= H8300MAGIC
;
2393 case bfd_mach_h8300h
:
2394 *magicp
= H8300HMAGIC
;
2396 case bfd_mach_h8300s
:
2397 *magicp
= H8300SMAGIC
;
2403 #ifdef SH_ARCH_MAGIC_BIG
2405 if (bfd_big_endian (abfd
))
2406 *magicp
= SH_ARCH_MAGIC_BIG
;
2408 *magicp
= SH_ARCH_MAGIC_LITTLE
;
2414 case bfd_arch_sparc
:
2415 *magicp
= SPARCMAGIC
;
2417 /* Just overwrite the usual value if we're doing Lynx. */
2418 *magicp
= LYNXCOFFMAGIC
;
2425 case bfd_arch_h8500
:
2426 *magicp
= H8500MAGIC
;
2430 #ifdef A29K_MAGIC_BIG
2432 if (bfd_big_endian (abfd
))
2433 *magicp
= A29K_MAGIC_BIG
;
2435 *magicp
= A29K_MAGIC_LITTLE
;
2441 case bfd_arch_we32k
:
2442 *magicp
= WE32KMAGIC
;
2448 case bfd_arch_rs6000
:
2450 case bfd_arch_powerpc
:
2452 *magicp
= U802TOCMAGIC
;
2458 case bfd_arch_mcore
:
2459 * magicp
= MCOREMAGIC
;
2463 default: /* Unknown architecture */
2464 /* return false; -- fall through to "return false" below, to avoid
2465 "statement never reached" errors on the one below. */
2474 coff_set_arch_mach (abfd
, arch
, machine
)
2476 enum bfd_architecture arch
;
2477 unsigned long machine
;
2480 unsigned short dummy2
;
2482 if (! bfd_default_set_arch_mach (abfd
, arch
, machine
))
2485 if (arch
!= bfd_arch_unknown
&&
2486 coff_set_flags (abfd
, &dummy1
, &dummy2
) != true)
2487 return false; /* We can't represent this type */
2489 return true; /* We're easy ... */
2492 #ifdef COFF_IMAGE_WITH_PE
2494 /* This is used to sort sections by VMA, as required by PE image
2497 static int sort_by_secaddr
PARAMS ((const PTR
, const PTR
));
2500 sort_by_secaddr (arg1
, arg2
)
2504 const asection
*a
= *(const asection
**) arg1
;
2505 const asection
*b
= *(const asection
**) arg2
;
2507 if (a
->vma
< b
->vma
)
2509 else if (a
->vma
> b
->vma
)
2515 #endif /* COFF_IMAGE_WITH_PE */
2517 /* Calculate the file position for each section. */
2520 #define ALIGN_SECTIONS_IN_FILE
2523 #undef ALIGN_SECTIONS_IN_FILE
2527 coff_compute_section_file_positions (abfd
)
2531 asection
*previous
= (asection
*) NULL
;
2532 file_ptr sofar
= FILHSZ
;
2533 boolean align_adjust
;
2534 #ifdef ALIGN_SECTIONS_IN_FILE
2539 /* On XCOFF, if we have symbols, set up the .debug section. */
2540 if (bfd_get_symcount (abfd
) > 0)
2543 bfd_size_type i
, symcount
;
2547 symcount
= bfd_get_symcount (abfd
);
2548 for (symp
= abfd
->outsymbols
, i
= 0; i
< symcount
; symp
++, i
++)
2550 coff_symbol_type
*cf
;
2552 cf
= coff_symbol_from (abfd
, *symp
);
2554 && cf
->native
!= NULL
2555 && SYMNAME_IN_DEBUG (&cf
->native
->u
.syment
))
2559 len
= strlen (bfd_asymbol_name (*symp
));
2568 dsec
= bfd_make_section_old_way (abfd
, ".debug");
2571 dsec
->_raw_size
= sz
;
2572 dsec
->flags
|= SEC_HAS_CONTENTS
;
2577 #ifdef COFF_IMAGE_WITH_PE
2579 if (coff_data (abfd
)->link_info
)
2581 page_size
= pe_data (abfd
)->pe_opthdr
.FileAlignment
;
2584 page_size
= PE_DEF_FILE_ALIGNMENT
;
2586 #ifdef COFF_PAGE_SIZE
2587 int page_size
= COFF_PAGE_SIZE
;
2591 if (bfd_get_start_address (abfd
))
2593 /* A start address may have been added to the original file. In this
2594 case it will need an optional header to record it. */
2595 abfd
->flags
|= EXEC_P
;
2598 if (abfd
->flags
& EXEC_P
)
2601 else if (xcoff_data (abfd
)->full_aouthdr
)
2604 sofar
+= SMALL_AOUTSZ
;
2607 sofar
+= abfd
->section_count
* SCNHSZ
;
2610 /* XCOFF handles overflows in the reloc and line number count fields
2611 by allocating a new section header to hold the correct counts. */
2612 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
2613 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
2617 #ifdef COFF_IMAGE_WITH_PE
2619 /* PE requires the sections to be in memory order when listed in
2620 the section headers. It also does not like empty loadable
2621 sections. The sections apparently do not have to be in the
2622 right order in the image file itself, but we do need to get the
2623 target_index values right. */
2626 asection
**section_list
;
2631 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
2634 /* We allocate an extra cell to simplify the final loop. */
2635 section_list
= bfd_malloc (sizeof (struct asection
*) * (count
+ 1));
2636 if (section_list
== NULL
)
2640 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
2642 section_list
[i
] = current
;
2645 section_list
[i
] = NULL
;
2647 qsort (section_list
, count
, sizeof (asection
*), sort_by_secaddr
);
2649 /* Rethread the linked list into sorted order; at the same time,
2650 assign target_index values. */
2652 abfd
->sections
= section_list
[0];
2653 for (i
= 0; i
< count
; i
++)
2655 current
= section_list
[i
];
2656 current
->next
= section_list
[i
+ 1];
2658 /* Later, if the section has zero size, we'll be throwing it
2659 away, so we don't want to number it now. Note that having
2660 a zero size and having real contents are different
2661 concepts: .bss has no contents, but (usually) non-zero
2663 if (current
->_raw_size
== 0)
2665 /* Discard. However, it still might have (valid) symbols
2666 in it, so arbitrarily set it to section 1 (indexing is
2667 1-based here; usually .text). __end__ and other
2668 contents of .endsection really have this happen.
2669 FIXME: This seems somewhat dubious. */
2670 current
->target_index
= 1;
2673 current
->target_index
= target_index
++;
2676 free (section_list
);
2678 #else /* ! COFF_IMAGE_WITH_PE */
2680 /* Set the target_index field. */
2684 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
2685 current
->target_index
= target_index
++;
2687 #endif /* ! COFF_IMAGE_WITH_PE */
2689 align_adjust
= false;
2690 for (current
= abfd
->sections
;
2691 current
!= (asection
*) NULL
;
2692 current
= current
->next
)
2694 #ifdef COFF_IMAGE_WITH_PE
2695 /* With PE we have to pad each section to be a multiple of its
2696 page size too, and remember both sizes. */
2697 if (coff_section_data (abfd
, current
) == NULL
)
2699 current
->used_by_bfd
=
2700 (PTR
) bfd_zalloc (abfd
, sizeof (struct coff_section_tdata
));
2701 if (current
->used_by_bfd
== NULL
)
2704 if (pei_section_data (abfd
, current
) == NULL
)
2706 coff_section_data (abfd
, current
)->tdata
=
2707 (PTR
) bfd_zalloc (abfd
, sizeof (struct pei_section_tdata
));
2708 if (coff_section_data (abfd
, current
)->tdata
== NULL
)
2711 if (pei_section_data (abfd
, current
)->virt_size
== 0)
2712 pei_section_data (abfd
, current
)->virt_size
= current
->_raw_size
;
2715 /* Only deal with sections which have contents. */
2716 if (!(current
->flags
& SEC_HAS_CONTENTS
))
2719 #ifdef COFF_IMAGE_WITH_PE
2720 /* Make sure we skip empty sections in a PE image. */
2721 if (current
->_raw_size
== 0)
2725 /* Align the sections in the file to the same boundary on
2726 which they are aligned in virtual memory. I960 doesn't
2727 do this (FIXME) so we can stay in sync with Intel. 960
2728 doesn't yet page from files... */
2729 #ifdef ALIGN_SECTIONS_IN_FILE
2730 if ((abfd
->flags
& EXEC_P
) != 0)
2732 /* make sure this section is aligned on the right boundary - by
2733 padding the previous section up if necessary */
2736 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
2737 if (previous
!= (asection
*) NULL
)
2739 previous
->_raw_size
+= sofar
- old_sofar
;
2745 /* In demand paged files the low order bits of the file offset
2746 must match the low order bits of the virtual address. */
2747 #ifdef COFF_PAGE_SIZE
2748 if ((abfd
->flags
& D_PAGED
) != 0
2749 && (current
->flags
& SEC_ALLOC
) != 0)
2750 sofar
+= (current
->vma
- sofar
) % page_size
;
2752 current
->filepos
= sofar
;
2754 #ifdef COFF_IMAGE_WITH_PE
2755 /* Set the padded size. */
2756 current
->_raw_size
= (current
->_raw_size
+ page_size
-1) & -page_size
;
2759 sofar
+= current
->_raw_size
;
2761 #ifdef ALIGN_SECTIONS_IN_FILE
2762 /* make sure that this section is of the right size too */
2763 if ((abfd
->flags
& EXEC_P
) == 0)
2765 bfd_size_type old_size
;
2767 old_size
= current
->_raw_size
;
2768 current
->_raw_size
= BFD_ALIGN (current
->_raw_size
,
2769 1 << current
->alignment_power
);
2770 align_adjust
= current
->_raw_size
!= old_size
;
2771 sofar
+= current
->_raw_size
- old_size
;
2776 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
2777 align_adjust
= sofar
!= old_sofar
;
2778 current
->_raw_size
+= sofar
- old_sofar
;
2782 #ifdef COFF_IMAGE_WITH_PE
2783 /* For PE we need to make sure we pad out to the aligned
2784 _raw_size, in case the caller only writes out data to the
2785 unaligned _raw_size. */
2786 if (pei_section_data (abfd
, current
)->virt_size
< current
->_raw_size
)
2787 align_adjust
= true;
2791 /* Force .lib sections to start at zero. The vma is then
2792 incremented in coff_set_section_contents. This is right for
2794 if (strcmp (current
->name
, _LIB
) == 0)
2795 bfd_set_section_vma (abfd
, current
, 0);
2801 /* It is now safe to write to the output file. If we needed an
2802 alignment adjustment for the last section, then make sure that
2803 there is a byte at offset sofar. If there are no symbols and no
2804 relocs, then nothing follows the last section. If we don't force
2805 the last byte out, then the file may appear to be truncated. */
2811 if (bfd_seek (abfd
, sofar
- 1, SEEK_SET
) != 0
2812 || bfd_write (&b
, 1, 1, abfd
) != 1)
2816 /* Make sure the relocations are aligned. We don't need to make
2817 sure that this byte exists, because it will only matter if there
2818 really are relocs. */
2819 sofar
= BFD_ALIGN (sofar
, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER
);
2821 obj_relocbase (abfd
) = sofar
;
2822 abfd
->output_has_begun
= true;
2829 /* This can never work, because it is called too late--after the
2830 section positions have been set. I can't figure out what it is
2831 for, so I am going to disable it--Ian Taylor 20 March 1996. */
2833 /* If .file, .text, .data, .bss symbols are missing, add them. */
2834 /* @@ Should we only be adding missing symbols, or overriding the aux
2835 values for existing section symbols? */
2837 coff_add_missing_symbols (abfd
)
2840 unsigned int nsyms
= bfd_get_symcount (abfd
);
2841 asymbol
**sympp
= abfd
->outsymbols
;
2844 int need_text
= 1, need_data
= 1, need_bss
= 1, need_file
= 1;
2846 for (i
= 0; i
< nsyms
; i
++)
2848 coff_symbol_type
*csym
= coff_symbol_from (abfd
, sympp
[i
]);
2852 /* only do this if there is a coff representation of the input
2854 if (csym
->native
&& csym
->native
->u
.syment
.n_sclass
== C_FILE
)
2859 name
= csym
->symbol
.name
;
2862 if (!strcmp (name
, _TEXT
))
2865 else if (!strcmp (name
, ".wtext"))
2868 else if (!strcmp (name
, _DATA
))
2870 else if (!strcmp (name
, _BSS
))
2874 /* Now i == bfd_get_symcount (abfd). */
2875 /* @@ For now, don't deal with .file symbol. */
2878 if (!need_text
&& !need_data
&& !need_bss
&& !need_file
)
2880 nsyms
+= need_text
+ need_data
+ need_bss
+ need_file
;
2881 sympp2
= (asymbol
**) bfd_alloc (abfd
, nsyms
* sizeof (asymbol
*));
2884 memcpy (sympp2
, sympp
, i
* sizeof (asymbol
*));
2887 /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */
2891 sympp2
[i
++] = coff_section_symbol (abfd
, _TEXT
);
2893 sympp2
[i
++] = coff_section_symbol (abfd
, _DATA
);
2895 sympp2
[i
++] = coff_section_symbol (abfd
, _BSS
);
2896 BFD_ASSERT (i
== nsyms
);
2897 bfd_set_symtab (abfd
, sympp2
, nsyms
);
2906 coff_write_object_contents (abfd
)
2910 boolean hasrelocs
= false;
2911 boolean haslinno
= false;
2912 boolean hasdebug
= false;
2914 file_ptr reloc_base
;
2915 file_ptr lineno_base
;
2917 unsigned long reloc_size
= 0;
2918 unsigned long lnno_size
= 0;
2919 boolean long_section_names
;
2920 asection
*text_sec
= NULL
;
2921 asection
*data_sec
= NULL
;
2922 asection
*bss_sec
= NULL
;
2923 struct internal_filehdr internal_f
;
2924 struct internal_aouthdr internal_a
;
2925 #ifdef COFF_LONG_SECTION_NAMES
2926 size_t string_size
= STRING_SIZE_SIZE
;
2929 bfd_set_error (bfd_error_system_call
);
2931 /* Make a pass through the symbol table to count line number entries and
2932 put them into the correct asections */
2934 lnno_size
= coff_count_linenumbers (abfd
) * LINESZ
;
2936 if (abfd
->output_has_begun
== false)
2938 if (! coff_compute_section_file_positions (abfd
))
2942 reloc_base
= obj_relocbase (abfd
);
2944 /* Work out the size of the reloc and linno areas */
2946 for (current
= abfd
->sections
; current
!= NULL
; current
=
2948 reloc_size
+= current
->reloc_count
* RELSZ
;
2950 lineno_base
= reloc_base
+ reloc_size
;
2951 sym_base
= lineno_base
+ lnno_size
;
2953 /* Indicate in each section->line_filepos its actual file address */
2954 for (current
= abfd
->sections
; current
!= NULL
; current
=
2957 if (current
->lineno_count
)
2959 current
->line_filepos
= lineno_base
;
2960 current
->moving_line_filepos
= lineno_base
;
2961 lineno_base
+= current
->lineno_count
* LINESZ
;
2965 current
->line_filepos
= 0;
2967 if (current
->reloc_count
)
2969 current
->rel_filepos
= reloc_base
;
2970 reloc_base
+= current
->reloc_count
* RELSZ
;
2974 current
->rel_filepos
= 0;
2978 /* Write section headers to the file. */
2979 internal_f
.f_nscns
= 0;
2981 if ((abfd
->flags
& EXEC_P
) != 0)
2982 scn_base
= FILHSZ
+ AOUTSZ
;
2987 if (xcoff_data (abfd
)->full_aouthdr
)
2990 scn_base
+= SMALL_AOUTSZ
;
2994 if (bfd_seek (abfd
, scn_base
, SEEK_SET
) != 0)
2997 long_section_names
= false;
2998 for (current
= abfd
->sections
;
3000 current
= current
->next
)
3002 struct internal_scnhdr section
;
3003 boolean is_reloc_section
= false;
3005 #ifdef COFF_IMAGE_WITH_PE
3006 if (strcmp (current
->name
, ".reloc") == 0)
3008 is_reloc_section
= true;
3010 pe_data (abfd
)->has_reloc_section
= 1;
3014 internal_f
.f_nscns
++;
3016 strncpy (section
.s_name
, current
->name
, SCNNMLEN
);
3018 #ifdef COFF_LONG_SECTION_NAMES
3019 /* Handle long section names as in PE. This must be compatible
3020 with the code in coff_write_symbols and _bfd_coff_final_link. */
3024 len
= strlen (current
->name
);
3027 memset (section
.s_name
, 0, SCNNMLEN
);
3028 sprintf (section
.s_name
, "/%lu", (unsigned long) string_size
);
3029 string_size
+= len
+ 1;
3030 long_section_names
= true;
3036 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3037 Ian Taylor <ian@cygnus.com>. */
3038 if (strcmp (current
->name
, _LIB
) == 0)
3039 section
.s_vaddr
= 0;
3042 section
.s_vaddr
= current
->vma
;
3043 section
.s_paddr
= current
->lma
;
3044 section
.s_size
= current
->_raw_size
;
3047 section
.s_paddr
= 0;
3049 #ifdef COFF_IMAGE_WITH_PE
3050 /* Reminder: s_paddr holds the virtual size of the section. */
3051 if (coff_section_data (abfd
, current
) != NULL
3052 && pei_section_data (abfd
, current
) != NULL
)
3053 section
.s_paddr
= pei_section_data (abfd
, current
)->virt_size
;
3055 section
.s_paddr
= 0;
3059 If this section has no size or is unloadable then the scnptr
3062 if (current
->_raw_size
== 0 ||
3063 (current
->flags
& (SEC_LOAD
| SEC_HAS_CONTENTS
)) == 0)
3065 section
.s_scnptr
= 0;
3069 section
.s_scnptr
= current
->filepos
;
3071 section
.s_relptr
= current
->rel_filepos
;
3072 section
.s_lnnoptr
= current
->line_filepos
;
3073 section
.s_nreloc
= current
->reloc_count
;
3074 section
.s_nlnno
= current
->lineno_count
;
3075 if (current
->reloc_count
!= 0)
3077 if (current
->lineno_count
!= 0)
3079 if ((current
->flags
& SEC_DEBUGGING
) != 0
3080 && ! is_reloc_section
)
3084 /* Indicate the use of an XCOFF overflow section header. */
3085 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3087 section
.s_nreloc
= 0xffff;
3088 section
.s_nlnno
= 0xffff;
3092 section
.s_flags
= sec_to_styp_flags (current
->name
, current
->flags
);
3094 if (!strcmp (current
->name
, _TEXT
))
3098 else if (!strcmp (current
->name
, _DATA
))
3102 else if (!strcmp (current
->name
, _BSS
))
3108 section
.s_align
= (current
->alignment_power
3109 ? 1 << current
->alignment_power
3113 section
.s_flags
|= (current
->alignment_power
& 0xF) << 8;
3117 #ifdef COFF_IMAGE_WITH_PE
3118 /* Suppress output of the sections if they are null. ld
3119 includes the bss and data sections even if there is no size
3120 assigned to them. NT loader doesn't like it if these section
3121 headers are included if the sections themselves are not
3122 needed. See also coff_compute_section_file_positions. */
3123 if (section
.s_size
== 0)
3124 internal_f
.f_nscns
--;
3129 if (coff_swap_scnhdr_out (abfd
, §ion
, &buff
) == 0
3130 || bfd_write ((PTR
) (&buff
), 1, SCNHSZ
, abfd
) != SCNHSZ
)
3135 /* PE stores COMDAT section information in the symbol table. If
3136 this section is supposed to have some COMDAT info, track down
3137 the symbol in the symbol table and modify it. */
3138 if ((current
->flags
& SEC_LINK_ONCE
) != 0)
3140 unsigned int i
, count
;
3142 coff_symbol_type
*csym
= NULL
;
3146 count
= bfd_get_symcount (abfd
);
3147 for (i
= 0, psym
= abfd
->outsymbols
; i
< count
; i
++, psym
++)
3149 if ((*psym
)->section
!= current
)
3152 /* Remember the location of the first symbol in this
3154 if (psymsec
== NULL
)
3157 /* See if this is the section symbol. */
3158 if (strcmp ((*psym
)->name
, current
->name
) == 0)
3160 csym
= coff_symbol_from (abfd
, *psym
);
3162 || csym
->native
== NULL
3163 || csym
->native
->u
.syment
.n_numaux
< 1
3164 || csym
->native
->u
.syment
.n_sclass
!= C_STAT
3165 || csym
->native
->u
.syment
.n_type
!= T_NULL
)
3168 /* Here *PSYM is the section symbol for CURRENT. */
3175 Note that we might not if we're converting the file from
3176 some other object file format. */
3179 combined_entry_type
*aux
;
3181 /* We don't touch the x_checksum field. The
3182 x_associated field is not currently supported. */
3184 aux
= csym
->native
+ 1;
3185 switch (current
->flags
& SEC_LINK_DUPLICATES
)
3187 case SEC_LINK_DUPLICATES_DISCARD
:
3188 aux
->u
.auxent
.x_scn
.x_comdat
= IMAGE_COMDAT_SELECT_ANY
;
3191 case SEC_LINK_DUPLICATES_ONE_ONLY
:
3192 aux
->u
.auxent
.x_scn
.x_comdat
=
3193 IMAGE_COMDAT_SELECT_NODUPLICATES
;
3196 case SEC_LINK_DUPLICATES_SAME_SIZE
:
3197 aux
->u
.auxent
.x_scn
.x_comdat
=
3198 IMAGE_COMDAT_SELECT_SAME_SIZE
;
3201 case SEC_LINK_DUPLICATES_SAME_CONTENTS
:
3202 aux
->u
.auxent
.x_scn
.x_comdat
=
3203 IMAGE_COMDAT_SELECT_EXACT_MATCH
;
3207 /* The COMDAT symbol must be the first symbol from this
3208 section in the symbol table. In order to make this
3209 work, we move the COMDAT symbol before the first
3210 symbol we found in the search above. It's OK to
3211 rearrange the symbol table at this point, because
3212 coff_renumber_symbols is going to rearrange it
3213 further and fix up all the aux entries. */
3214 if (psym
!= psymsec
)
3220 for (pcopy
= psym
; pcopy
> psymsec
; pcopy
--)
3221 pcopy
[0] = pcopy
[-1];
3226 #endif /* COFF_WITH_PE */
3230 /* XCOFF handles overflows in the reloc and line number count fields
3231 by creating a new section header to hold the correct values. */
3232 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3234 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3236 struct internal_scnhdr scnhdr
;
3239 internal_f
.f_nscns
++;
3240 strncpy (&(scnhdr
.s_name
[0]), current
->name
, 8);
3241 scnhdr
.s_paddr
= current
->reloc_count
;
3242 scnhdr
.s_vaddr
= current
->lineno_count
;
3244 scnhdr
.s_scnptr
= 0;
3245 scnhdr
.s_relptr
= current
->rel_filepos
;
3246 scnhdr
.s_lnnoptr
= current
->line_filepos
;
3247 scnhdr
.s_nreloc
= current
->target_index
;
3248 scnhdr
.s_nlnno
= current
->target_index
;
3249 scnhdr
.s_flags
= STYP_OVRFLO
;
3250 if (coff_swap_scnhdr_out (abfd
, &scnhdr
, &buff
) == 0
3251 || bfd_write ((PTR
) &buff
, 1, SCNHSZ
, abfd
) != SCNHSZ
)
3257 /* OK, now set up the filehdr... */
3259 /* Don't include the internal abs section in the section count */
3262 We will NOT put a fucking timestamp in the header here. Every time you
3263 put it back, I will come in and take it out again. I'm sorry. This
3264 field does not belong here. We fill it with a 0 so it compares the
3265 same but is not a reasonable time. -- gnu@cygnus.com
3267 internal_f
.f_timdat
= 0;
3269 internal_f
.f_flags
= 0;
3271 if (abfd
->flags
& EXEC_P
)
3272 internal_f
.f_opthdr
= AOUTSZ
;
3275 internal_f
.f_opthdr
= 0;
3277 if (xcoff_data (abfd
)->full_aouthdr
)
3278 internal_f
.f_opthdr
= AOUTSZ
;
3280 internal_f
.f_opthdr
= SMALL_AOUTSZ
;
3285 internal_f
.f_flags
|= F_RELFLG
;
3287 internal_f
.f_flags
|= F_LNNO
;
3288 if (abfd
->flags
& EXEC_P
)
3289 internal_f
.f_flags
|= F_EXEC
;
3290 #ifdef COFF_IMAGE_WITH_PE
3292 internal_f
.f_flags
|= IMAGE_FILE_DEBUG_STRIPPED
;
3295 #ifndef COFF_WITH_PE
3296 if (bfd_little_endian (abfd
))
3297 internal_f
.f_flags
|= F_AR32WR
;
3299 internal_f
.f_flags
|= F_AR32W
;
3302 #ifdef TIC80_TARGET_ID
3303 internal_f
.f_target_id
= TIC80_TARGET_ID
;
3307 FIXME, should do something about the other byte orders and
3312 if ((abfd
->flags
& DYNAMIC
) != 0)
3313 internal_f
.f_flags
|= F_SHROBJ
;
3314 if (bfd_get_section_by_name (abfd
, _LOADER
) != NULL
)
3315 internal_f
.f_flags
|= F_DYNLOAD
;
3318 memset (&internal_a
, 0, sizeof internal_a
);
3320 /* Set up architecture-dependent stuff */
3323 unsigned int magic
= 0;
3324 unsigned short flags
= 0;
3325 coff_set_flags (abfd
, &magic
, &flags
);
3326 internal_f
.f_magic
= magic
;
3327 internal_f
.f_flags
|= flags
;
3328 /* ...and the "opt"hdr... */
3331 #ifdef ULTRA3 /* NYU's machine */
3332 /* FIXME: This is a bogus check. I really want to see if there
3333 * is a .shbss or a .shdata section, if so then set the magic
3334 * number to indicate a shared data executable.
3336 if (internal_f
.f_nscns
>= 7)
3337 internal_a
.magic
= SHMAGIC
; /* Shared magic */
3340 internal_a
.magic
= NMAGIC
; /* Assume separate i/d */
3341 #define __A_MAGIC_SET__
3344 internal_a
.magic
= TIC80_ARCH_MAGIC
;
3345 #define __A_MAGIC_SET__
3348 /* FIXME: What are the a.out magic numbers for the i860? */
3349 internal_a
.magic
= 0;
3350 #define __A_MAGIC_SET__
3353 internal_a
.magic
= (magic
== I960ROMAGIC
? NMAGIC
: OMAGIC
);
3354 #define __A_MAGIC_SET__
3357 #define __A_MAGIC_SET__
3358 internal_a
.magic
= PAGEMAGICBCS
;
3362 #define __A_MAGIC_SET__
3363 internal_a
.magic
= APOLLO_COFF_VERSION_NUMBER
;
3366 #if defined(M68) || defined(WE32K) || defined(M68K)
3367 #define __A_MAGIC_SET__
3369 internal_a
.magic
= LYNXCOFFMAGIC
;
3371 #if defined(TARG_AUX)
3372 internal_a
.magic
= (abfd
->flags
& D_PAGED
? PAGEMAGICPEXECPAGED
:
3373 abfd
->flags
& WP_TEXT
? PAGEMAGICPEXECSWAPPED
:
3374 PAGEMAGICEXECSWAPPED
);
3376 #if defined (PAGEMAGICPEXECPAGED)
3377 internal_a
.magic
= PAGEMAGICPEXECPAGED
;
3379 #endif /* TARG_AUX */
3381 #endif /* M68 || WE32K || M68K */
3384 #define __A_MAGIC_SET__
3385 internal_a
.magic
= ZMAGIC
;
3389 #define __A_MAGIC_SET__
3390 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
3393 #if defined MCORE_PE
3394 #define __A_MAGIC_SET__
3395 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
3399 #define __A_MAGIC_SET__
3401 internal_a
.magic
= LYNXCOFFMAGIC
;
3403 internal_a
.magic
= ZMAGIC
;
3408 #define __A_MAGIC_SET__
3410 internal_a
.magic
= LYNXCOFFMAGIC
;
3415 #define __A_MAGIC_SET__
3416 internal_a
.magic
= (abfd
->flags
& D_PAGED
) ? RS6K_AOUTHDR_ZMAGIC
:
3417 (abfd
->flags
& WP_TEXT
) ? RS6K_AOUTHDR_NMAGIC
:
3418 RS6K_AOUTHDR_OMAGIC
;
3421 #ifndef __A_MAGIC_SET__
3422 #include "Your aouthdr magic number is not being set!"
3424 #undef __A_MAGIC_SET__
3428 /* FIXME: Does anybody ever set this to another value? */
3429 internal_a
.vstamp
= 0;
3431 /* Now should write relocs, strings, syms */
3432 obj_sym_filepos (abfd
) = sym_base
;
3434 if (bfd_get_symcount (abfd
) != 0)
3438 if (!coff_add_missing_symbols (abfd
))
3441 if (!coff_renumber_symbols (abfd
, &firstundef
))
3443 coff_mangle_symbols (abfd
);
3444 if (! coff_write_symbols (abfd
))
3446 if (! coff_write_linenumbers (abfd
))
3448 if (! coff_write_relocs (abfd
, firstundef
))
3451 #ifdef COFF_LONG_SECTION_NAMES
3452 else if (long_section_names
)
3454 /* If we have long section names we have to write out the string
3455 table even if there are no symbols. */
3456 if (! coff_write_symbols (abfd
))
3460 #ifdef COFF_IMAGE_WITH_PE
3462 else if ((abfd
->flags
& EXEC_P
) != 0)
3466 /* PowerPC PE appears to require that all executable files be
3467 rounded up to the page size. */
3470 BFD_ALIGN (sym_base
, COFF_PAGE_SIZE
) - 1,
3472 || bfd_write (&b
, 1, 1, abfd
) != 1)
3478 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
3479 backend linker, and obj_raw_syment_count is not valid until after
3480 coff_write_symbols is called. */
3481 if (obj_raw_syment_count (abfd
) != 0)
3483 internal_f
.f_symptr
= sym_base
;
3485 /* AIX appears to require that F_RELFLG not be set if there are
3486 local symbols but no relocations. */
3487 internal_f
.f_flags
&=~ F_RELFLG
;
3492 if (long_section_names
)
3493 internal_f
.f_symptr
= sym_base
;
3495 internal_f
.f_symptr
= 0;
3496 internal_f
.f_flags
|= F_LSYMS
;
3501 internal_a
.tsize
= bfd_get_section_size_before_reloc (text_sec
);
3502 internal_a
.text_start
= internal_a
.tsize
? text_sec
->vma
: 0;
3506 internal_a
.dsize
= bfd_get_section_size_before_reloc (data_sec
);
3507 internal_a
.data_start
= internal_a
.dsize
? data_sec
->vma
: 0;
3511 internal_a
.bsize
= bfd_get_section_size_before_reloc (bss_sec
);
3512 if (internal_a
.bsize
&& bss_sec
->vma
< internal_a
.data_start
)
3513 internal_a
.data_start
= bss_sec
->vma
;
3516 internal_a
.entry
= bfd_get_start_address (abfd
);
3517 internal_f
.f_nsyms
= obj_raw_syment_count (abfd
);
3520 if (xcoff_data (abfd
)->full_aouthdr
)
3523 asection
*loader_sec
;
3525 internal_a
.vstamp
= 1;
3527 internal_a
.o_snentry
= xcoff_data (abfd
)->snentry
;
3528 if (internal_a
.o_snentry
== 0)
3529 internal_a
.entry
= (bfd_vma
) -1;
3531 if (text_sec
!= NULL
)
3533 internal_a
.o_sntext
= text_sec
->target_index
;
3534 internal_a
.o_algntext
= bfd_get_section_alignment (abfd
, text_sec
);
3538 internal_a
.o_sntext
= 0;
3539 internal_a
.o_algntext
= 0;
3541 if (data_sec
!= NULL
)
3543 internal_a
.o_sndata
= data_sec
->target_index
;
3544 internal_a
.o_algndata
= bfd_get_section_alignment (abfd
, data_sec
);
3548 internal_a
.o_sndata
= 0;
3549 internal_a
.o_algndata
= 0;
3551 loader_sec
= bfd_get_section_by_name (abfd
, ".loader");
3552 if (loader_sec
!= NULL
)
3553 internal_a
.o_snloader
= loader_sec
->target_index
;
3555 internal_a
.o_snloader
= 0;
3556 if (bss_sec
!= NULL
)
3557 internal_a
.o_snbss
= bss_sec
->target_index
;
3559 internal_a
.o_snbss
= 0;
3561 toc
= xcoff_data (abfd
)->toc
;
3562 internal_a
.o_toc
= toc
;
3563 internal_a
.o_sntoc
= xcoff_data (abfd
)->sntoc
;
3565 internal_a
.o_modtype
= xcoff_data (abfd
)->modtype
;
3566 if (xcoff_data (abfd
)->cputype
!= -1)
3567 internal_a
.o_cputype
= xcoff_data (abfd
)->cputype
;
3570 switch (bfd_get_arch (abfd
))
3572 case bfd_arch_rs6000
:
3573 internal_a
.o_cputype
= 4;
3575 case bfd_arch_powerpc
:
3576 if (bfd_get_mach (abfd
) == 0)
3577 internal_a
.o_cputype
= 3;
3579 internal_a
.o_cputype
= 1;
3585 internal_a
.o_maxstack
= xcoff_data (abfd
)->maxstack
;
3586 internal_a
.o_maxdata
= xcoff_data (abfd
)->maxdata
;
3590 /* now write them */
3591 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
) != 0)
3595 coff_swap_filehdr_out (abfd
, (PTR
) & internal_f
, (PTR
) buff
);
3596 if (bfd_write ((PTR
) buff
, 1, FILHSZ
, abfd
) != FILHSZ
)
3599 if (abfd
->flags
& EXEC_P
)
3601 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
3602 include/coff/pe.h sets AOUTSZ == sizeof(PEAOUTHDR)) */
3604 coff_swap_aouthdr_out (abfd
, (PTR
) & internal_a
, (PTR
) buff
);
3605 if (bfd_write ((PTR
) buff
, 1, AOUTSZ
, abfd
) != AOUTSZ
)
3614 /* XCOFF seems to always write at least a small a.out header. */
3615 coff_swap_aouthdr_out (abfd
, (PTR
) &internal_a
, (PTR
) &buff
);
3616 if (xcoff_data (abfd
)->full_aouthdr
)
3619 size
= SMALL_AOUTSZ
;
3620 if (bfd_write ((PTR
) &buff
, 1, size
, abfd
) != size
)
3629 coff_set_section_contents (abfd
, section
, location
, offset
, count
)
3634 bfd_size_type count
;
3636 if (abfd
->output_has_begun
== false) /* set by bfd.c handler */
3638 if (! coff_compute_section_file_positions (abfd
))
3642 #if defined(_LIB) && !defined(TARG_AUX)
3644 /* The physical address field of a .lib section is used to hold the
3645 number of shared libraries in the section. This code counts the
3646 number of sections being written, and increments the lma field
3649 I have found no documentation on the contents of this section.
3650 Experimentation indicates that the section contains zero or more
3651 records, each of which has the following structure:
3653 - a (four byte) word holding the length of this record, in words,
3654 - a word that always seems to be set to "2",
3655 - the path to a shared library, null-terminated and then padded
3656 to a whole word boundary.
3658 bfd_assert calls have been added to alert if an attempt is made
3659 to write a section which doesn't follow these assumptions. The
3660 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
3661 <robertl@arnet.com> (Thanks!).
3663 Gvran Uddeborg <gvran@uddeborg.pp.se> */
3665 if (strcmp (section
->name
, _LIB
) == 0)
3667 bfd_byte
*rec
, *recend
;
3669 rec
= (bfd_byte
*) location
;
3670 recend
= rec
+ count
;
3671 while (rec
< recend
)
3674 rec
+= bfd_get_32 (abfd
, rec
) * 4;
3677 BFD_ASSERT (rec
== recend
);
3682 /* Don't write out bss sections - one way to do this is to
3683 see if the filepos has not been set. */
3684 if (section
->filepos
== 0)
3687 if (bfd_seek (abfd
, (file_ptr
) (section
->filepos
+ offset
), SEEK_SET
) != 0)
3692 return (bfd_write (location
, 1, count
, abfd
) == count
) ? true : false;
3698 coff_close_and_cleanup (abfd
)
3701 if (!bfd_read_p (abfd
))
3702 switch (abfd
->format
)
3705 if (!_bfd_write_archive_contents (abfd
))
3709 if (!coff_write_object_contents (abfd
))
3713 bfd_set_error (bfd_error_invalid_operation
);
3717 /* We depend on bfd_close to free all the memory on the objalloc. */
3724 buy_and_read (abfd
, where
, seek_direction
, size
)
3730 PTR area
= (PTR
) bfd_alloc (abfd
, size
);
3733 if (bfd_seek (abfd
, where
, seek_direction
) != 0
3734 || bfd_read (area
, 1, size
, abfd
) != size
)
3737 } /* buy_and_read() */
3743 Creating the linenumber table is done by reading in the entire
3744 coff linenumber table, and creating another table for internal use.
3746 A coff linenumber table is structured so that each function
3747 is marked as having a line number of 0. Each line within the
3748 function is an offset from the first line in the function. The
3749 base of the line number information for the table is stored in
3750 the symbol associated with the function.
3752 Note: The PE format uses line number 0 for a flag indicating a
3755 The information is copied from the external to the internal
3756 table, and each symbol which marks a function is marked by
3759 How does this work ?
3764 coff_slurp_line_table (abfd
, asect
)
3768 LINENO
*native_lineno
;
3769 alent
*lineno_cache
;
3771 BFD_ASSERT (asect
->lineno
== (alent
*) NULL
);
3773 native_lineno
= (LINENO
*) buy_and_read (abfd
,
3774 asect
->line_filepos
,
3777 asect
->lineno_count
));
3779 (alent
*) bfd_alloc (abfd
, (size_t) ((asect
->lineno_count
+ 1) * sizeof (alent
)));
3780 if (lineno_cache
== NULL
)
3784 unsigned int counter
= 0;
3785 alent
*cache_ptr
= lineno_cache
;
3786 LINENO
*src
= native_lineno
;
3788 while (counter
< asect
->lineno_count
)
3790 struct internal_lineno dst
;
3791 coff_swap_lineno_in (abfd
, src
, &dst
);
3792 cache_ptr
->line_number
= dst
.l_lnno
;
3794 if (cache_ptr
->line_number
== 0)
3798 coff_symbol_type
*sym
;
3801 symndx
= dst
.l_addr
.l_symndx
;
3803 || (unsigned long) symndx
>= obj_raw_syment_count (abfd
))
3805 (*_bfd_error_handler
)
3806 (_("%s: warning: illegal symbol index %ld in line numbers"),
3807 bfd_get_filename (abfd
), dst
.l_addr
.l_symndx
);
3811 /* FIXME: We should not be casting between ints and
3812 pointers like this. */
3813 sym
= ((coff_symbol_type
*)
3814 ((symndx
+ obj_raw_syments (abfd
))
3815 ->u
.syment
._n
._n_n
._n_zeroes
));
3816 cache_ptr
->u
.sym
= (asymbol
*) sym
;
3817 if (sym
->lineno
!= NULL
&& ! warned
)
3819 (*_bfd_error_handler
)
3820 (_("%s: warning: duplicate line number information for `%s'"),
3821 bfd_get_filename (abfd
),
3822 bfd_asymbol_name (&sym
->symbol
));
3824 sym
->lineno
= cache_ptr
;
3828 cache_ptr
->u
.offset
= dst
.l_addr
.l_paddr
3829 - bfd_section_vma (abfd
, asect
);
3830 } /* If no linenumber expect a symbol index */
3836 cache_ptr
->line_number
= 0;
3839 asect
->lineno
= lineno_cache
;
3840 /* FIXME, free native_lineno here, or use alloca or something. */
3844 /* Slurp in the symbol table, converting it to generic form. Note
3845 that if coff_relocate_section is defined, the linker will read
3846 symbols via coff_link_add_symbols, rather than via this routine. */
3849 coff_slurp_symbol_table (abfd
)
3852 combined_entry_type
*native_symbols
;
3853 coff_symbol_type
*cached_area
;
3854 unsigned int *table_ptr
;
3856 unsigned int number_of_symbols
= 0;
3858 if (obj_symbols (abfd
))
3861 /* Read in the symbol table */
3862 if ((native_symbols
= coff_get_normalized_symtab (abfd
)) == NULL
)
3867 /* Allocate enough room for all the symbols in cached form */
3868 cached_area
= ((coff_symbol_type
*)
3870 (obj_raw_syment_count (abfd
)
3871 * sizeof (coff_symbol_type
))));
3873 if (cached_area
== NULL
)
3875 table_ptr
= ((unsigned int *)
3877 (obj_raw_syment_count (abfd
)
3878 * sizeof (unsigned int))));
3880 if (table_ptr
== NULL
)
3884 coff_symbol_type
*dst
= cached_area
;
3885 unsigned int last_native_index
= obj_raw_syment_count (abfd
);
3886 unsigned int this_index
= 0;
3887 while (this_index
< last_native_index
)
3889 combined_entry_type
*src
= native_symbols
+ this_index
;
3890 table_ptr
[this_index
] = number_of_symbols
;
3891 dst
->symbol
.the_bfd
= abfd
;
3893 dst
->symbol
.name
= (char *) (src
->u
.syment
._n
._n_n
._n_offset
);
3894 /* We use the native name field to point to the cached field. */
3895 src
->u
.syment
._n
._n_n
._n_zeroes
= (long) dst
;
3896 dst
->symbol
.section
= coff_section_from_bfd_index (abfd
,
3897 src
->u
.syment
.n_scnum
);
3898 dst
->symbol
.flags
= 0;
3899 dst
->done_lineno
= false;
3901 switch (src
->u
.syment
.n_sclass
)
3906 dst
->symbol
.value
= src
->u
.syment
.n_value
- dst
->symbol
.section
->vma
;
3907 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
3908 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
3910 /* Fall through to next case */
3918 case C_THUMBEXTFUNC
:
3924 case C_SYSTEM
: /* System Wide variable */
3927 /* In PE, 0x68 (104) denotes a section symbol */
3929 /* In PE, 0x69 (105) denotes a weak external symbol. */
3932 switch (coff_classify_symbol (abfd
, &src
->u
.syment
))
3934 case COFF_SYMBOL_GLOBAL
:
3935 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
3936 #if defined COFF_WITH_PE
3937 /* PE sets the symbol to a value relative to the
3938 start of the section. */
3939 dst
->symbol
.value
= src
->u
.syment
.n_value
;
3941 dst
->symbol
.value
= (src
->u
.syment
.n_value
3942 - dst
->symbol
.section
->vma
);
3944 if (ISFCN ((src
->u
.syment
.n_type
)))
3946 /* A function ext does not go at the end of a
3948 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
3952 case COFF_SYMBOL_COMMON
:
3953 dst
->symbol
.section
= bfd_com_section_ptr
;
3954 dst
->symbol
.value
= src
->u
.syment
.n_value
;
3957 case COFF_SYMBOL_UNDEFINED
:
3958 dst
->symbol
.section
= bfd_und_section_ptr
;
3959 dst
->symbol
.value
= 0;
3962 case COFF_SYMBOL_PE_SECTION
:
3963 dst
->symbol
.flags
|= BSF_EXPORT
| BSF_SECTION_SYM
;
3964 dst
->symbol
.value
= 0;
3967 case COFF_SYMBOL_LOCAL
:
3968 dst
->symbol
.flags
= BSF_LOCAL
;
3969 #if defined COFF_WITH_PE
3970 /* PE sets the symbol to a value relative to the
3971 start of the section. */
3972 dst
->symbol
.value
= src
->u
.syment
.n_value
;
3974 dst
->symbol
.value
= (src
->u
.syment
.n_value
3975 - dst
->symbol
.section
->vma
);
3977 if (ISFCN ((src
->u
.syment
.n_type
)))
3978 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
3983 /* A symbol with a csect entry should not go at the end. */
3984 if (src
->u
.syment
.n_numaux
> 0)
3985 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
3989 if (src
->u
.syment
.n_sclass
== C_NT_WEAK
)
3990 dst
->symbol
.flags
= BSF_WEAK
;
3991 if (src
->u
.syment
.n_sclass
== C_SECTION
3992 && src
->u
.syment
.n_scnum
> 0)
3994 dst
->symbol
.flags
= BSF_LOCAL
;
3998 if (src
->u
.syment
.n_sclass
== C_WEAKEXT
)
3999 dst
->symbol
.flags
= BSF_WEAK
;
4003 case C_STAT
: /* static */
4005 case C_LEAFSTAT
: /* static leaf procedure */
4008 case C_THUMBSTAT
: /* Thumb static */
4009 case C_THUMBLABEL
: /* Thumb label */
4010 case C_THUMBSTATFUNC
:/* Thumb static function */
4012 case C_LABEL
: /* label */
4013 if (src
->u
.syment
.n_scnum
== N_DEBUG
)
4014 dst
->symbol
.flags
= BSF_DEBUGGING
;
4016 dst
->symbol
.flags
= BSF_LOCAL
;
4018 /* Base the value as an index from the base of the
4019 section, if there is one. */
4020 if (dst
->symbol
.section
)
4022 #if defined COFF_WITH_PE
4023 /* PE sets the symbol to a value relative to the
4024 start of the section. */
4025 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4027 dst
->symbol
.value
= (src
->u
.syment
.n_value
4028 - dst
->symbol
.section
->vma
);
4032 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4035 case C_MOS
: /* member of structure */
4036 case C_EOS
: /* end of structure */
4037 #ifdef NOTDEF /* C_AUTOARG has the same value */
4039 case C_GLBLREG
: /* A29k-specific storage class */
4042 case C_REGPARM
: /* register parameter */
4043 case C_REG
: /* register variable */
4046 case C_AUTOARG
: /* 960-specific storage class */
4049 case C_TPDEF
: /* type definition */
4051 case C_AUTO
: /* automatic variable */
4052 case C_FIELD
: /* bit field */
4053 case C_ENTAG
: /* enumeration tag */
4054 case C_MOE
: /* member of enumeration */
4055 case C_MOU
: /* member of union */
4056 case C_UNTAG
: /* union tag */
4057 dst
->symbol
.flags
= BSF_DEBUGGING
;
4058 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4061 case C_FILE
: /* file name */
4062 case C_STRTAG
: /* structure tag */
4077 dst
->symbol
.flags
= BSF_DEBUGGING
;
4078 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4082 case C_BINCL
: /* beginning of include file */
4083 case C_EINCL
: /* ending of include file */
4084 /* The value is actually a pointer into the line numbers
4085 of the file. We locate the line number entry, and
4086 set the section to the section which contains it, and
4087 the value to the index in that section. */
4091 dst
->symbol
.flags
= BSF_DEBUGGING
;
4092 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
4093 if (sec
->line_filepos
<= (file_ptr
) src
->u
.syment
.n_value
4094 && ((file_ptr
) (sec
->line_filepos
4095 + sec
->lineno_count
* LINESZ
)
4096 > (file_ptr
) src
->u
.syment
.n_value
))
4099 dst
->symbol
.value
= 0;
4102 dst
->symbol
.section
= sec
;
4103 dst
->symbol
.value
= ((src
->u
.syment
.n_value
4104 - sec
->line_filepos
)
4112 dst
->symbol
.flags
= BSF_DEBUGGING
;
4114 /* The value is actually a symbol index. Save a pointer
4115 to the symbol instead of the index. FIXME: This
4116 should use a union. */
4117 src
->u
.syment
.n_value
=
4118 (long) (native_symbols
+ src
->u
.syment
.n_value
);
4119 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4124 case C_BLOCK
: /* ".bb" or ".eb" */
4125 case C_FCN
: /* ".bf" or ".ef" (or PE ".lf") */
4126 case C_EFCN
: /* physical end of function */
4127 #if defined COFF_WITH_PE
4128 /* PE sets the symbol to a value relative to the start
4130 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4131 if (strcmp (dst
->symbol
.name
, ".bf") != 0)
4133 /* PE uses funny values for .ef and .lf; don't
4135 dst
->symbol
.flags
= BSF_DEBUGGING
;
4138 dst
->symbol
.flags
= BSF_DEBUGGING
| BSF_DEBUGGING_RELOC
;
4140 /* Base the value as an index from the base of the
4142 dst
->symbol
.flags
= BSF_LOCAL
;
4143 dst
->symbol
.value
= (src
->u
.syment
.n_value
4144 - dst
->symbol
.section
->vma
);
4149 /* PE DLLs sometimes have zeroed out symbols for some
4150 reason. Just ignore them without a warning. */
4151 if (src
->u
.syment
.n_type
== 0
4152 && src
->u
.syment
.n_value
== 0
4153 && src
->u
.syment
.n_scnum
== 0)
4156 case C_EXTDEF
: /* external definition */
4157 case C_ULABEL
: /* undefined label */
4158 case C_USTATIC
: /* undefined static */
4159 #ifndef COFF_WITH_PE
4160 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4161 class to represent a section symbol */
4162 case C_LINE
: /* line # reformatted as symbol table entry */
4163 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4164 case C_ALIAS
: /* duplicate tag */
4166 /* New storage classes for TIc80 */
4168 case C_UEXT
: /* Tentative external definition */
4170 case C_STATLAB
: /* Static load time label */
4171 case C_EXTLAB
: /* External load time label */
4172 case C_HIDDEN
: /* ext symbol in dmert public lib */
4174 (*_bfd_error_handler
)
4175 (_("%s: Unrecognized storage class %d for %s symbol `%s'"),
4176 bfd_get_filename (abfd
), src
->u
.syment
.n_sclass
,
4177 dst
->symbol
.section
->name
, dst
->symbol
.name
);
4178 dst
->symbol
.flags
= BSF_DEBUGGING
;
4179 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4183 /* BFD_ASSERT(dst->symbol.flags != 0);*/
4187 dst
->symbol
.udata
.i
= 0;
4188 dst
->lineno
= (alent
*) NULL
;
4189 this_index
+= (src
->u
.syment
.n_numaux
) + 1;
4191 number_of_symbols
++;
4192 } /* walk the native symtab */
4193 } /* bfdize the native symtab */
4195 obj_symbols (abfd
) = cached_area
;
4196 obj_raw_syments (abfd
) = native_symbols
;
4198 bfd_get_symcount (abfd
) = number_of_symbols
;
4199 obj_convert (abfd
) = table_ptr
;
4200 /* Slurp the line tables for each section too */
4206 coff_slurp_line_table (abfd
, p
);
4211 } /* coff_slurp_symbol_table() */
4213 /* Classify a COFF symbol. A couple of targets have globally visible
4214 symbols which are not class C_EXT, and this handles those. It also
4215 recognizes some special PE cases. */
4217 static enum coff_symbol_classification
4218 coff_classify_symbol (abfd
, syment
)
4220 struct internal_syment
*syment
;
4222 /* FIXME: This partially duplicates the switch in
4223 coff_slurp_symbol_table. */
4224 switch (syment
->n_sclass
)
4233 case C_THUMBEXTFUNC
:
4241 if (syment
->n_scnum
== 0)
4243 if (syment
->n_value
== 0)
4244 return COFF_SYMBOL_UNDEFINED
;
4246 return COFF_SYMBOL_COMMON
;
4248 return COFF_SYMBOL_GLOBAL
;
4255 if (syment
->n_sclass
== C_STAT
)
4257 if (syment
->n_scnum
== 0)
4259 /* The Microsoft compiler sometimes generates these if a
4260 small static function is inlined every time it is used.
4261 The function is discarded, but the symbol table entry
4263 return COFF_SYMBOL_LOCAL
;
4267 /* This is correct for Microsoft generated objects, but it
4268 breaks gas generated objects. */
4270 if (syment
->n_value
== 0)
4273 char buf
[SYMNMLEN
+ 1];
4275 sec
= coff_section_from_bfd_index (abfd
, syment
->n_scnum
);
4277 && (strcmp (bfd_get_section_name (abfd
, sec
),
4278 _bfd_coff_internal_syment_name (abfd
, syment
, buf
))
4280 return COFF_SYMBOL_PE_SECTION
;
4284 return COFF_SYMBOL_LOCAL
;
4287 if (syment
->n_sclass
== C_SECTION
)
4289 /* In some cases in a DLL generated by the Microsoft linker, the
4290 n_value field will contain garbage. FIXME: This should
4291 probably be handled by the swapping function instead. */
4292 syment
->n_value
= 0;
4293 if (syment
->n_scnum
== 0)
4294 return COFF_SYMBOL_UNDEFINED
;
4295 return COFF_SYMBOL_PE_SECTION
;
4297 #endif /* COFF_WITH_PE */
4299 /* If it is not a global symbol, we presume it is a local symbol. */
4301 if (syment
->n_scnum
== 0)
4303 char buf
[SYMNMLEN
+ 1];
4305 (*_bfd_error_handler
)
4306 (_("warning: %s: local symbol `%s' has no section"),
4307 bfd_get_filename (abfd
),
4308 _bfd_coff_internal_syment_name (abfd
, syment
, buf
));
4311 return COFF_SYMBOL_LOCAL
;
4318 Coff relocations are easily transformed into the internal BFD form
4321 Reading a coff relocation table is done in the following stages:
4323 o Read the entire coff relocation table into memory.
4325 o Process each relocation in turn; first swap it from the
4326 external to the internal form.
4328 o Turn the symbol referenced in the relocation's symbol index
4329 into a pointer into the canonical symbol table.
4330 This table is the same as the one returned by a call to
4331 @code{bfd_canonicalize_symtab}. The back end will call that
4332 routine and save the result if a canonicalization hasn't been done.
4334 o The reloc index is turned into a pointer to a howto
4335 structure, in a back end specific way. For instance, the 386
4336 and 960 use the @code{r_type} to directly produce an index
4337 into a howto table vector; the 88k subtracts a number from the
4338 @code{r_type} field and creates an addend field.
4344 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
4346 coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \
4347 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
4348 coffsym = (obj_symbols (abfd) \
4349 + (cache_ptr->sym_ptr_ptr - symbols)); \
4351 coffsym = coff_symbol_from (abfd, ptr); \
4352 if (coffsym != (coff_symbol_type *) NULL \
4353 && coffsym->native->u.syment.n_scnum == 0) \
4354 cache_ptr->addend = 0; \
4355 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
4356 && ptr->section != (asection *) NULL) \
4357 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
4359 cache_ptr->addend = 0; \
4364 coff_slurp_reloc_table (abfd
, asect
, symbols
)
4369 RELOC
*native_relocs
;
4370 arelent
*reloc_cache
;
4375 if (asect
->relocation
)
4377 if (asect
->reloc_count
== 0)
4379 if (asect
->flags
& SEC_CONSTRUCTOR
)
4381 if (!coff_slurp_symbol_table (abfd
))
4384 (RELOC
*) buy_and_read (abfd
,
4388 asect
->reloc_count
));
4389 reloc_cache
= (arelent
*)
4390 bfd_alloc (abfd
, (size_t) (asect
->reloc_count
* sizeof (arelent
)));
4392 if (reloc_cache
== NULL
)
4396 for (idx
= 0; idx
< asect
->reloc_count
; idx
++)
4398 struct internal_reloc dst
;
4399 struct external_reloc
*src
;
4400 #ifndef RELOC_PROCESSING
4404 cache_ptr
= reloc_cache
+ idx
;
4405 src
= native_relocs
+ idx
;
4407 coff_swap_reloc_in (abfd
, src
, &dst
);
4409 #ifdef RELOC_PROCESSING
4410 RELOC_PROCESSING (cache_ptr
, &dst
, symbols
, abfd
, asect
);
4412 cache_ptr
->address
= dst
.r_vaddr
;
4414 if (dst
.r_symndx
!= -1)
4416 if (dst
.r_symndx
< 0 || dst
.r_symndx
>= obj_conv_table_size (abfd
))
4418 (*_bfd_error_handler
)
4419 (_("%s: warning: illegal symbol index %ld in relocs"),
4420 bfd_get_filename (abfd
), dst
.r_symndx
);
4421 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
4426 cache_ptr
->sym_ptr_ptr
= (symbols
4427 + obj_convert (abfd
)[dst
.r_symndx
]);
4428 ptr
= *(cache_ptr
->sym_ptr_ptr
);
4433 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
4437 /* The symbols definitions that we have read in have been
4438 relocated as if their sections started at 0. But the offsets
4439 refering to the symbols in the raw data have not been
4440 modified, so we have to have a negative addend to compensate.
4442 Note that symbols which used to be common must be left alone */
4444 /* Calculate any reloc addend by looking at the symbol */
4445 CALC_ADDEND (abfd
, ptr
, dst
, cache_ptr
);
4447 cache_ptr
->address
-= asect
->vma
;
4448 /* !! cache_ptr->section = (asection *) NULL;*/
4450 /* Fill in the cache_ptr->howto field from dst.r_type */
4451 RTYPE2HOWTO (cache_ptr
, &dst
);
4452 #endif /* RELOC_PROCESSING */
4454 if (cache_ptr
->howto
== NULL
)
4456 (*_bfd_error_handler
)
4457 (_("%s: illegal relocation type %d at address 0x%lx"),
4458 bfd_get_filename (abfd
), dst
.r_type
, (long) dst
.r_vaddr
);
4459 bfd_set_error (bfd_error_bad_value
);
4464 asect
->relocation
= reloc_cache
;
4468 #ifndef coff_rtype_to_howto
4471 /* Get the howto structure for a reloc. This is only used if the file
4472 including this one defines coff_relocate_section to be
4473 _bfd_coff_generic_relocate_section, so it is OK if it does not
4474 always work. It is the responsibility of the including file to
4475 make sure it is reasonable if it is needed. */
4477 static reloc_howto_type
*coff_rtype_to_howto
4478 PARAMS ((bfd
*, asection
*, struct internal_reloc
*,
4479 struct coff_link_hash_entry
*, struct internal_syment
*,
4483 static reloc_howto_type
*
4484 coff_rtype_to_howto (abfd
, sec
, rel
, h
, sym
, addendp
)
4485 bfd
*abfd ATTRIBUTE_UNUSED
;
4486 asection
*sec ATTRIBUTE_UNUSED
;
4487 struct internal_reloc
*rel
;
4488 struct coff_link_hash_entry
*h ATTRIBUTE_UNUSED
;
4489 struct internal_syment
*sym ATTRIBUTE_UNUSED
;
4490 bfd_vma
*addendp ATTRIBUTE_UNUSED
;
4494 RTYPE2HOWTO (&genrel
, rel
);
4495 return genrel
.howto
;
4498 #else /* ! defined (RTYPE2HOWTO) */
4500 #define coff_rtype_to_howto NULL
4502 #endif /* ! defined (RTYPE2HOWTO) */
4503 #endif /* ! defined (coff_rtype_to_howto) */
4505 /* This is stupid. This function should be a boolean predicate. */
4507 coff_canonicalize_reloc (abfd
, section
, relptr
, symbols
)
4513 arelent
*tblptr
= section
->relocation
;
4514 unsigned int count
= 0;
4517 if (section
->flags
& SEC_CONSTRUCTOR
)
4519 /* this section has relocs made up by us, they are not in the
4520 file, so take them out of their chain and place them into
4521 the data area provided */
4522 arelent_chain
*chain
= section
->constructor_chain
;
4523 for (count
= 0; count
< section
->reloc_count
; count
++)
4525 *relptr
++ = &chain
->relent
;
4526 chain
= chain
->next
;
4532 if (! coff_slurp_reloc_table (abfd
, section
, symbols
))
4535 tblptr
= section
->relocation
;
4537 for (; count
++ < section
->reloc_count
;)
4538 *relptr
++ = tblptr
++;
4543 return section
->reloc_count
;
4548 coff_sym_filepos (abfd
)
4551 return obj_sym_filepos (abfd
);
4555 #ifndef coff_reloc16_estimate
4556 #define coff_reloc16_estimate dummy_reloc16_estimate
4558 static int dummy_reloc16_estimate
4559 PARAMS ((bfd
*, asection
*, arelent
*, unsigned int,
4560 struct bfd_link_info
*));
4563 dummy_reloc16_estimate (abfd
, input_section
, reloc
, shrink
, link_info
)
4564 bfd
*abfd ATTRIBUTE_UNUSED
;
4565 asection
*input_section ATTRIBUTE_UNUSED
;
4566 arelent
*reloc ATTRIBUTE_UNUSED
;
4567 unsigned int shrink ATTRIBUTE_UNUSED
;
4568 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
;
4576 #ifndef coff_reloc16_extra_cases
4578 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
4580 /* This works even if abort is not declared in any header file. */
4582 static void dummy_reloc16_extra_cases
4583 PARAMS ((bfd
*, struct bfd_link_info
*, struct bfd_link_order
*, arelent
*,
4584 bfd_byte
*, unsigned int *, unsigned int *));
4587 dummy_reloc16_extra_cases (abfd
, link_info
, link_order
, reloc
, data
, src_ptr
,
4589 bfd
*abfd ATTRIBUTE_UNUSED
;
4590 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
;
4591 struct bfd_link_order
*link_order ATTRIBUTE_UNUSED
;
4592 arelent
*reloc ATTRIBUTE_UNUSED
;
4593 bfd_byte
*data ATTRIBUTE_UNUSED
;
4594 unsigned int *src_ptr ATTRIBUTE_UNUSED
;
4595 unsigned int *dst_ptr ATTRIBUTE_UNUSED
;
4601 /* If coff_relocate_section is defined, we can use the optimized COFF
4602 backend linker. Otherwise we must continue to use the old linker. */
4603 #ifdef coff_relocate_section
4604 #ifndef coff_bfd_link_hash_table_create
4605 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
4607 #ifndef coff_bfd_link_add_symbols
4608 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
4610 #ifndef coff_bfd_final_link
4611 #define coff_bfd_final_link _bfd_coff_final_link
4613 #else /* ! defined (coff_relocate_section) */
4614 #define coff_relocate_section NULL
4615 #ifndef coff_bfd_link_hash_table_create
4616 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
4618 #ifndef coff_bfd_link_add_symbols
4619 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
4621 #define coff_bfd_final_link _bfd_generic_final_link
4622 #endif /* ! defined (coff_relocate_section) */
4624 #define coff_bfd_link_split_section _bfd_generic_link_split_section
4626 #ifndef coff_start_final_link
4627 #define coff_start_final_link NULL
4630 #ifndef coff_adjust_symndx
4631 #define coff_adjust_symndx NULL
4634 #ifndef coff_link_add_one_symbol
4635 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
4638 #ifndef coff_link_output_has_begun
4640 static boolean coff_link_output_has_begun
4641 PARAMS ((bfd
*, struct coff_final_link_info
*));
4644 coff_link_output_has_begun (abfd
, info
)
4646 struct coff_final_link_info
* info ATTRIBUTE_UNUSED
;
4648 return abfd
->output_has_begun
;
4652 #ifndef coff_final_link_postscript
4654 static boolean coff_final_link_postscript
4655 PARAMS ((bfd
*, struct coff_final_link_info
*));
4658 coff_final_link_postscript (abfd
, pfinfo
)
4659 bfd
* abfd ATTRIBUTE_UNUSED
;
4660 struct coff_final_link_info
* pfinfo ATTRIBUTE_UNUSED
;
4666 #ifndef coff_SWAP_aux_in
4667 #define coff_SWAP_aux_in coff_swap_aux_in
4669 #ifndef coff_SWAP_sym_in
4670 #define coff_SWAP_sym_in coff_swap_sym_in
4672 #ifndef coff_SWAP_lineno_in
4673 #define coff_SWAP_lineno_in coff_swap_lineno_in
4675 #ifndef coff_SWAP_aux_out
4676 #define coff_SWAP_aux_out coff_swap_aux_out
4678 #ifndef coff_SWAP_sym_out
4679 #define coff_SWAP_sym_out coff_swap_sym_out
4681 #ifndef coff_SWAP_lineno_out
4682 #define coff_SWAP_lineno_out coff_swap_lineno_out
4684 #ifndef coff_SWAP_reloc_out
4685 #define coff_SWAP_reloc_out coff_swap_reloc_out
4687 #ifndef coff_SWAP_filehdr_out
4688 #define coff_SWAP_filehdr_out coff_swap_filehdr_out
4690 #ifndef coff_SWAP_aouthdr_out
4691 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
4693 #ifndef coff_SWAP_scnhdr_out
4694 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
4696 #ifndef coff_SWAP_reloc_in
4697 #define coff_SWAP_reloc_in coff_swap_reloc_in
4699 #ifndef coff_SWAP_filehdr_in
4700 #define coff_SWAP_filehdr_in coff_swap_filehdr_in
4702 #ifndef coff_SWAP_aouthdr_in
4703 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
4705 #ifndef coff_SWAP_scnhdr_in
4706 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
4709 static const bfd_coff_backend_data bfd_coff_std_swap_table
=
4711 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
4712 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
4713 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
4714 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
4715 coff_SWAP_scnhdr_out
,
4716 FILHSZ
, AOUTSZ
, SCNHSZ
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
4717 #ifdef COFF_LONG_FILENAMES
4722 #ifdef COFF_LONG_SECTION_NAMES
4727 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
4728 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
4729 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
4730 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
4731 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
4732 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
4733 coff_classify_symbol
, coff_compute_section_file_positions
,
4734 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
4735 coff_adjust_symndx
, coff_link_add_one_symbol
,
4736 coff_link_output_has_begun
, coff_final_link_postscript
4739 #ifndef coff_close_and_cleanup
4740 #define coff_close_and_cleanup _bfd_generic_close_and_cleanup
4743 #ifndef coff_bfd_free_cached_info
4744 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
4747 #ifndef coff_get_section_contents
4748 #define coff_get_section_contents _bfd_generic_get_section_contents
4751 #ifndef coff_bfd_copy_private_symbol_data
4752 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
4755 #ifndef coff_bfd_copy_private_section_data
4756 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
4759 #ifndef coff_bfd_copy_private_bfd_data
4760 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
4763 #ifndef coff_bfd_merge_private_bfd_data
4764 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
4767 #ifndef coff_bfd_set_private_flags
4768 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
4771 #ifndef coff_bfd_print_private_bfd_data
4772 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
4775 #ifndef coff_bfd_is_local_label_name
4776 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
4779 #ifndef coff_read_minisymbols
4780 #define coff_read_minisymbols _bfd_generic_read_minisymbols
4783 #ifndef coff_minisymbol_to_symbol
4784 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
4787 /* The reloc lookup routine must be supplied by each individual COFF
4789 #ifndef coff_bfd_reloc_type_lookup
4790 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
4793 #ifndef coff_bfd_get_relocated_section_contents
4794 #define coff_bfd_get_relocated_section_contents \
4795 bfd_generic_get_relocated_section_contents
4798 #ifndef coff_bfd_relax_section
4799 #define coff_bfd_relax_section bfd_generic_relax_section
4802 #ifndef coff_bfd_gc_sections
4803 #define coff_bfd_gc_sections bfd_generic_gc_sections
4806 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE) \
4807 const bfd_target VAR = \
4810 bfd_target_coff_flavour, \
4811 BFD_ENDIAN_BIG, /* data byte order is big */ \
4812 BFD_ENDIAN_BIG, /* header byte order is big */ \
4813 /* object flags */ \
4814 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
4815 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
4816 /* section flags */ \
4817 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
4818 UNDER, /* leading symbol underscore */ \
4819 '/', /* ar_pad_char */ \
4820 15, /* ar_max_namelen */ \
4822 /* Data conversion functions. */ \
4823 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
4824 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
4825 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
4827 /* Header conversion functions. */ \
4828 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
4829 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
4830 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
4832 /* bfd_check_format */ \
4833 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
4834 _bfd_dummy_target }, \
4835 /* bfd_set_format */ \
4836 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
4837 /* bfd_write_contents */ \
4838 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
4841 BFD_JUMP_TABLE_GENERIC (coff), \
4842 BFD_JUMP_TABLE_COPY (coff), \
4843 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
4844 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
4845 BFD_JUMP_TABLE_SYMBOLS (coff), \
4846 BFD_JUMP_TABLE_RELOCS (coff), \
4847 BFD_JUMP_TABLE_WRITE (coff), \
4848 BFD_JUMP_TABLE_LINK (coff), \
4849 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
4856 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE) \
4857 const bfd_target VAR = \
4860 bfd_target_coff_flavour, \
4861 BFD_ENDIAN_LITTLE, /* data byte order is little */ \
4862 BFD_ENDIAN_LITTLE, /* header byte order is little */ \
4863 /* object flags */ \
4864 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
4865 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
4866 /* section flags */ \
4867 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
4868 UNDER, /* leading symbol underscore */ \
4869 '/', /* ar_pad_char */ \
4870 15, /* ar_max_namelen */ \
4872 /* Data conversion functions. */ \
4873 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
4874 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
4875 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
4876 /* Header conversion functions. */ \
4877 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
4878 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
4879 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
4880 /* bfd_check_format */ \
4881 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
4882 _bfd_dummy_target }, \
4883 /* bfd_set_format */ \
4884 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
4885 /* bfd_write_contents */ \
4886 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
4889 BFD_JUMP_TABLE_GENERIC (coff), \
4890 BFD_JUMP_TABLE_COPY (coff), \
4891 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
4892 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
4893 BFD_JUMP_TABLE_SYMBOLS (coff), \
4894 BFD_JUMP_TABLE_RELOCS (coff), \
4895 BFD_JUMP_TABLE_WRITE (coff), \
4896 BFD_JUMP_TABLE_LINK (coff), \
4897 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \