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 . boolean _bfd_coff_long_filenames;
1018 . boolean _bfd_coff_long_section_names;
1019 . unsigned int _bfd_coff_default_section_alignment_power;
1020 . void (*_bfd_coff_swap_filehdr_in) PARAMS ((
1024 . void (*_bfd_coff_swap_aouthdr_in) PARAMS ((
1028 . void (*_bfd_coff_swap_scnhdr_in) PARAMS ((
1032 . void (*_bfd_coff_swap_reloc_in) PARAMS ((
1036 . boolean (*_bfd_coff_bad_format_hook) PARAMS ((
1038 . PTR internal_filehdr));
1039 . boolean (*_bfd_coff_set_arch_mach_hook) PARAMS ((
1041 . PTR internal_filehdr));
1042 . PTR (*_bfd_coff_mkobject_hook) PARAMS ((
1044 . PTR internal_filehdr,
1045 . PTR internal_aouthdr));
1046 . flagword (*_bfd_styp_to_sec_flags_hook) PARAMS ((
1048 . PTR internal_scnhdr,
1050 . asection *section));
1051 . void (*_bfd_set_alignment_hook) PARAMS ((
1054 . PTR internal_scnhdr));
1055 . boolean (*_bfd_coff_slurp_symbol_table) PARAMS ((
1057 . boolean (*_bfd_coff_symname_in_debug) PARAMS ((
1059 . struct internal_syment *sym));
1060 . boolean (*_bfd_coff_pointerize_aux_hook) PARAMS ((
1062 . combined_entry_type *table_base,
1063 . combined_entry_type *symbol,
1064 . unsigned int indaux,
1065 . combined_entry_type *aux));
1066 . boolean (*_bfd_coff_print_aux) PARAMS ((
1069 . combined_entry_type *table_base,
1070 . combined_entry_type *symbol,
1071 . combined_entry_type *aux,
1072 . unsigned int indaux));
1073 . void (*_bfd_coff_reloc16_extra_cases) PARAMS ((
1075 . struct bfd_link_info *link_info,
1076 . struct bfd_link_order *link_order,
1079 . unsigned int *src_ptr,
1080 . unsigned int *dst_ptr));
1081 . int (*_bfd_coff_reloc16_estimate) PARAMS ((
1083 . asection *input_section,
1085 . unsigned int shrink,
1086 . struct bfd_link_info *link_info));
1087 . enum coff_symbol_classification (*_bfd_coff_classify_symbol) PARAMS ((
1089 . struct internal_syment *));
1090 . boolean (*_bfd_coff_compute_section_file_positions) PARAMS ((
1092 . boolean (*_bfd_coff_start_final_link) PARAMS ((
1094 . struct bfd_link_info *info));
1095 . boolean (*_bfd_coff_relocate_section) PARAMS ((
1097 . struct bfd_link_info *info,
1099 . asection *input_section,
1100 . bfd_byte *contents,
1101 . struct internal_reloc *relocs,
1102 . struct internal_syment *syms,
1103 . asection **sections));
1104 . reloc_howto_type *(*_bfd_coff_rtype_to_howto) PARAMS ((
1107 . struct internal_reloc *rel,
1108 . struct coff_link_hash_entry *h,
1109 . struct internal_syment *sym,
1110 . bfd_vma *addendp));
1111 . boolean (*_bfd_coff_adjust_symndx) PARAMS ((
1113 . struct bfd_link_info *info,
1116 . struct internal_reloc *reloc,
1117 . boolean *adjustedp));
1118 . boolean (*_bfd_coff_link_add_one_symbol) PARAMS ((
1119 . struct bfd_link_info *info,
1123 . asection *section,
1125 . const char *string,
1128 . struct bfd_link_hash_entry **hashp));
1130 . boolean (*_bfd_coff_link_output_has_begun) PARAMS ((
1132 . struct coff_final_link_info * pfinfo));
1133 . boolean (*_bfd_coff_final_link_postscript) PARAMS ((
1135 . struct coff_final_link_info * pfinfo));
1137 .} bfd_coff_backend_data;
1139 .#define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
1141 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
1142 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
1144 .#define bfd_coff_swap_sym_in(a,e,i) \
1145 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
1147 .#define bfd_coff_swap_lineno_in(a,e,i) \
1148 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
1150 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
1151 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
1153 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
1154 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
1156 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
1157 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
1159 .#define bfd_coff_swap_sym_out(abfd, i,o) \
1160 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
1162 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
1163 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
1165 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
1166 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
1168 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
1169 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
1171 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1172 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1173 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1174 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1175 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1176 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1177 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
1178 .#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames)
1179 .#define bfd_coff_long_section_names(abfd) \
1180 . (coff_backend_info (abfd)->_bfd_coff_long_section_names)
1181 .#define bfd_coff_default_section_alignment_power(abfd) \
1182 . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
1183 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
1184 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
1186 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
1187 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
1189 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
1190 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
1192 .#define bfd_coff_swap_reloc_in(abfd, i, o) \
1193 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
1195 .#define bfd_coff_bad_format_hook(abfd, filehdr) \
1196 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
1198 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
1199 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
1200 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
1201 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr))
1203 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section)\
1204 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1205 . (abfd, scnhdr, name, section))
1207 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
1208 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
1210 .#define bfd_coff_slurp_symbol_table(abfd)\
1211 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
1213 .#define bfd_coff_symname_in_debug(abfd, sym)\
1214 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
1216 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
1217 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1218 . (abfd, file, base, symbol, aux, indaux))
1220 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\
1221 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1222 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
1224 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
1225 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1226 . (abfd, section, reloc, shrink, link_info))
1228 .#define bfd_coff_classify_symbol(abfd, sym)\
1229 . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1232 .#define bfd_coff_compute_section_file_positions(abfd)\
1233 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1236 .#define bfd_coff_start_final_link(obfd, info)\
1237 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1239 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
1240 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1241 . (obfd, info, ibfd, o, con, rel, isyms, secs))
1242 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
1243 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1244 . (abfd, sec, rel, h, sym, addendp))
1245 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
1246 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1247 . (obfd, info, ibfd, sec, rel, adjustedp))
1248 .#define bfd_coff_link_add_one_symbol(info,abfd,name,flags,section,value,string,cp,coll,hashp)\
1249 . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1250 . (info, abfd, name, flags, section, value, string, cp, coll, hashp))
1252 .#define bfd_coff_link_output_has_begun(a,p) \
1253 . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a,p))
1254 .#define bfd_coff_final_link_postscript(a,p) \
1255 . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a,p))
1259 /* See whether the magic number matches. */
1262 coff_bad_format_hook (abfd
, filehdr
)
1263 bfd
* abfd ATTRIBUTE_UNUSED
;
1266 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1268 if (BADMAG (*internal_f
))
1271 /* if the optional header is NULL or not the correct size then
1272 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1273 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1274 optional header is of a different size.
1276 But the mips keeps extra stuff in it's opthdr, so dont check
1280 #if defined(M88) || defined(I960)
1281 if (internal_f
->f_opthdr
!= 0 && AOUTSZ
!= internal_f
->f_opthdr
)
1288 /* Check whether this section uses an alignment other than the
1292 coff_set_custom_section_alignment (abfd
, section
, alignment_table
, table_size
)
1293 bfd
*abfd ATTRIBUTE_UNUSED
;
1295 const struct coff_section_alignment_entry
*alignment_table
;
1296 const unsigned int table_size
;
1298 const unsigned int default_alignment
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1301 for (i
= 0; i
< table_size
; ++i
)
1303 const char *secname
= bfd_get_section_name (abfd
, section
);
1304 if (alignment_table
[i
].comparison_length
== (unsigned int) -1
1305 ? strcmp (alignment_table
[i
].name
, secname
) == 0
1306 : strncmp (alignment_table
[i
].name
, secname
,
1307 alignment_table
[i
].comparison_length
) == 0)
1310 if (i
>= table_size
)
1313 if (alignment_table
[i
].default_alignment_min
!= COFF_ALIGNMENT_FIELD_EMPTY
1314 && default_alignment
< alignment_table
[i
].default_alignment_min
)
1317 if (alignment_table
[i
].default_alignment_max
!= COFF_ALIGNMENT_FIELD_EMPTY
1318 && default_alignment
> alignment_table
[i
].default_alignment_max
)
1321 section
->alignment_power
= alignment_table
[i
].alignment_power
;
1324 /* Custom section alignment records. */
1326 static const struct coff_section_alignment_entry
1327 coff_section_alignment_table
[] =
1329 #ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1330 COFF_SECTION_ALIGNMENT_ENTRIES
,
1332 /* There must not be any gaps between .stabstr sections. */
1333 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1334 1, COFF_ALIGNMENT_FIELD_EMPTY
, 0 },
1335 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1336 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1337 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1338 /* Similarly for the .ctors and .dtors sections. */
1339 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1340 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1341 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1342 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 }
1345 static const unsigned int coff_section_alignment_table_size
=
1346 sizeof coff_section_alignment_table
/ sizeof coff_section_alignment_table
[0];
1348 /* Initialize a section structure with information peculiar to this
1349 particular implementation of COFF. */
1352 coff_new_section_hook (abfd
, section
)
1356 combined_entry_type
*native
;
1358 section
->alignment_power
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1361 if (xcoff_data (abfd
)->text_align_power
!= 0
1362 && strcmp (bfd_get_section_name (abfd
, section
), ".text") == 0)
1363 section
->alignment_power
= xcoff_data (abfd
)->text_align_power
;
1364 if (xcoff_data (abfd
)->data_align_power
!= 0
1365 && strcmp (bfd_get_section_name (abfd
, section
), ".data") == 0)
1366 section
->alignment_power
= xcoff_data (abfd
)->data_align_power
;
1369 /* Allocate aux records for section symbols, to store size and
1372 @@ The 10 is a guess at a plausible maximum number of aux entries
1373 (but shouldn't be a constant). */
1374 native
= ((combined_entry_type
*)
1375 bfd_zalloc (abfd
, sizeof (combined_entry_type
) * 10));
1379 /* We don't need to set up n_name, n_value, or n_scnum in the native
1380 symbol information, since they'll be overriden by the BFD symbol
1381 anyhow. However, we do need to set the type and storage class,
1382 in case this symbol winds up getting written out. The value 0
1383 for n_numaux is already correct. */
1385 native
->u
.syment
.n_type
= T_NULL
;
1386 native
->u
.syment
.n_sclass
= C_STAT
;
1388 coffsymbol (section
->symbol
)->native
= native
;
1390 coff_set_custom_section_alignment (abfd
, section
,
1391 coff_section_alignment_table
,
1392 coff_section_alignment_table_size
);
1397 #ifdef COFF_ALIGN_IN_SECTION_HEADER
1399 /* Set the alignment of a BFD section. */
1401 static void coff_set_alignment_hook
PARAMS ((bfd
*, asection
*, PTR
));
1404 coff_set_alignment_hook (abfd
, section
, scnhdr
)
1405 bfd
* abfd ATTRIBUTE_UNUSED
;
1409 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1413 /* Extract ALIGN from 2**ALIGN stored in section header */
1414 for (i
= 0; i
< 32; i
++)
1415 if ((1 << i
) >= hdr
->s_align
)
1419 /* TI tools hijack bits 8-11 for the alignment */
1420 i
= (hdr
->s_flags
>> 8) & 0xF ;
1422 section
->alignment_power
= i
;
1425 #else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1428 /* a couple of macros to help setting the alignment power field */
1429 #define ALIGN_SET(field,x,y) \
1430 if (((field) & IMAGE_SCN_ALIGN_64BYTES) == x )\
1432 section->alignment_power = y;\
1435 #define ELIFALIGN_SET(field,x,y) \
1436 else if (( (field) & IMAGE_SCN_ALIGN_64BYTES) == x ) \
1438 section->alignment_power = y;\
1441 static void coff_set_alignment_hook
PARAMS ((bfd
*, asection
*, PTR
));
1444 coff_set_alignment_hook (abfd
, section
, scnhdr
)
1445 bfd
* abfd ATTRIBUTE_UNUSED
;
1449 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1451 ALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_64BYTES
, 6)
1452 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_32BYTES
, 5)
1453 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_16BYTES
, 4)
1454 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_8BYTES
, 3)
1455 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_4BYTES
, 2)
1456 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_2BYTES
, 1)
1457 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_1BYTES
, 0)
1459 #ifdef POWERPC_LE_PE
1460 if (strcmp (section
->name
, ".idata$2") == 0)
1462 section
->alignment_power
= 0;
1464 else if (strcmp (section
->name
, ".idata$3") == 0)
1466 section
->alignment_power
= 0;
1468 else if (strcmp (section
->name
, ".idata$4") == 0)
1470 section
->alignment_power
= 2;
1472 else if (strcmp (section
->name
, ".idata$5") == 0)
1474 section
->alignment_power
= 2;
1476 else if (strcmp (section
->name
, ".idata$6") == 0)
1478 section
->alignment_power
= 1;
1480 else if (strcmp (section
->name
, ".reloc") == 0)
1482 section
->alignment_power
= 1;
1484 else if (strncmp (section
->name
, ".stab", 5) == 0)
1486 section
->alignment_power
= 2;
1490 /* In a PE image file, the s_paddr field holds the virtual size of a
1491 section, while the s_size field holds the raw size. We also keep
1492 the original section flag value, since not every bit can be
1493 mapped onto a generic BFD section bit. */
1494 if (coff_section_data (abfd
, section
) == NULL
)
1496 section
->used_by_bfd
=
1497 (PTR
) bfd_zalloc (abfd
, sizeof (struct coff_section_tdata
));
1498 if (section
->used_by_bfd
== NULL
)
1500 /* FIXME: Return error. */
1504 if (pei_section_data (abfd
, section
) == NULL
)
1506 coff_section_data (abfd
, section
)->tdata
=
1507 (PTR
) bfd_zalloc (abfd
, sizeof (struct pei_section_tdata
));
1508 if (coff_section_data (abfd
, section
)->tdata
== NULL
)
1510 /* FIXME: Return error. */
1514 pei_section_data (abfd
, section
)->virt_size
= hdr
->s_paddr
;
1515 pei_section_data (abfd
, section
)->pe_flags
= hdr
->s_flags
;
1517 section
->lma
= hdr
->s_vaddr
;
1520 #undef ELIFALIGN_SET
1522 #else /* ! COFF_WITH_PE */
1525 /* We grossly abuse this function to handle XCOFF overflow headers.
1526 When we see one, we correct the reloc and line number counts in the
1527 real header, and remove the section we just created. */
1529 static void coff_set_alignment_hook
PARAMS ((bfd
*, asection
*, PTR
));
1532 coff_set_alignment_hook (abfd
, section
, scnhdr
)
1537 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1541 if ((hdr
->s_flags
& STYP_OVRFLO
) == 0)
1544 real_sec
= coff_section_from_bfd_index (abfd
, hdr
->s_nreloc
);
1545 if (real_sec
== NULL
)
1548 real_sec
->reloc_count
= hdr
->s_paddr
;
1549 real_sec
->lineno_count
= hdr
->s_vaddr
;
1551 for (ps
= &abfd
->sections
; *ps
!= NULL
; ps
= &(*ps
)->next
)
1556 --abfd
->section_count
;
1562 #else /* ! RS6000COFF_C */
1564 #define coff_set_alignment_hook \
1565 ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void)
1567 #endif /* ! RS6000COFF_C */
1568 #endif /* ! COFF_WITH_PE */
1569 #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
1571 #ifndef coff_mkobject
1573 static boolean coff_mkobject
PARAMS ((bfd
*));
1576 coff_mkobject (abfd
)
1579 coff_data_type
*coff
;
1581 abfd
->tdata
.coff_obj_data
= (struct coff_tdata
*) bfd_zalloc (abfd
, sizeof (coff_data_type
));
1582 if (abfd
->tdata
.coff_obj_data
== 0)
1584 coff
= coff_data (abfd
);
1585 coff
->symbols
= (coff_symbol_type
*) NULL
;
1586 coff
->conversion_table
= (unsigned int *) NULL
;
1587 coff
->raw_syments
= (struct coff_ptr_struct
*) NULL
;
1588 coff
->relocbase
= 0;
1589 coff
->local_toc_sym_map
= 0;
1591 /* make_abs_section(abfd);*/
1597 /* Create the COFF backend specific information. */
1598 #ifndef coff_mkobject_hook
1600 coff_mkobject_hook (abfd
, filehdr
, aouthdr
)
1603 PTR aouthdr ATTRIBUTE_UNUSED
;
1605 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1606 coff_data_type
*coff
;
1608 if (coff_mkobject (abfd
) == false)
1611 coff
= coff_data (abfd
);
1613 coff
->sym_filepos
= internal_f
->f_symptr
;
1615 /* These members communicate important constants about the symbol
1616 table to GDB's symbol-reading code. These `constants'
1617 unfortunately vary among coff implementations... */
1618 coff
->local_n_btmask
= N_BTMASK
;
1619 coff
->local_n_btshft
= N_BTSHFT
;
1620 coff
->local_n_tmask
= N_TMASK
;
1621 coff
->local_n_tshift
= N_TSHIFT
;
1622 coff
->local_symesz
= SYMESZ
;
1623 coff
->local_auxesz
= AUXESZ
;
1624 coff
->local_linesz
= LINESZ
;
1626 obj_raw_syment_count (abfd
) =
1627 obj_conv_table_size (abfd
) =
1628 internal_f
->f_nsyms
;
1631 if ((internal_f
->f_flags
& F_SHROBJ
) != 0)
1632 abfd
->flags
|= DYNAMIC
;
1633 if (aouthdr
!= NULL
&& internal_f
->f_opthdr
>= AOUTSZ
)
1635 struct internal_aouthdr
*internal_a
=
1636 (struct internal_aouthdr
*) aouthdr
;
1637 struct xcoff_tdata
*xcoff
;
1639 xcoff
= xcoff_data (abfd
);
1640 xcoff
->full_aouthdr
= true;
1641 xcoff
->toc
= internal_a
->o_toc
;
1642 xcoff
->sntoc
= internal_a
->o_sntoc
;
1643 xcoff
->snentry
= internal_a
->o_snentry
;
1644 xcoff
->text_align_power
= internal_a
->o_algntext
;
1645 xcoff
->data_align_power
= internal_a
->o_algndata
;
1646 xcoff
->modtype
= internal_a
->o_modtype
;
1647 xcoff
->cputype
= internal_a
->o_cputype
;
1648 xcoff
->maxdata
= internal_a
->o_maxdata
;
1649 xcoff
->maxstack
= internal_a
->o_maxstack
;
1654 /* Set the flags field from the COFF header read in */
1655 if (! _bfd_coff_arm_set_private_flags (abfd
, internal_f
->f_flags
))
1663 /* Determine the machine architecture and type. FIXME: This is target
1664 dependent because the magic numbers are defined in the target
1665 dependent header files. But there is no particular need for this.
1666 If the magic numbers were moved to a separate file, this function
1667 would be target independent and would also be much more successful
1668 at linking together COFF files for different architectures. */
1671 coff_set_arch_mach_hook (abfd
, filehdr
)
1676 enum bfd_architecture arch
;
1677 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1680 switch (internal_f
->f_magic
)
1684 arch
= bfd_arch_powerpc
;
1685 machine
= 0; /* what does this mean? (krk) */
1691 case I386AIXMAGIC
: /* Danbury PS/2 AIX C Compiler */
1692 case LYNXCOFFMAGIC
: /* shadows the m68k Lynx number below, sigh */
1693 arch
= bfd_arch_i386
;
1697 #ifdef A29K_MAGIC_BIG
1698 case A29K_MAGIC_BIG
:
1699 case A29K_MAGIC_LITTLE
:
1700 arch
= bfd_arch_a29k
;
1706 arch
= bfd_arch_arm
;
1707 switch (internal_f
->f_flags
& F_ARM_ARCHITECTURE_MASK
)
1709 case F_ARM_2
: machine
= bfd_mach_arm_2
; break;
1710 case F_ARM_2a
: machine
= bfd_mach_arm_2a
; break;
1711 case F_ARM_3
: machine
= bfd_mach_arm_3
; break;
1713 case F_ARM_3M
: machine
= bfd_mach_arm_3M
; break;
1714 case F_ARM_4
: machine
= bfd_mach_arm_4
; break;
1715 case F_ARM_4T
: machine
= bfd_mach_arm_4T
; break;
1716 case F_ARM_5
: machine
= bfd_mach_arm_5
; break;
1723 #ifdef MC68KBCSMAGIC
1726 #ifdef APOLLOM68KMAGIC
1727 case APOLLOM68KMAGIC
:
1729 #ifdef LYNXCOFFMAGIC
1732 arch
= bfd_arch_m68k
;
1733 machine
= bfd_mach_m68020
;
1740 arch
= bfd_arch_m88k
;
1746 arch
= bfd_arch_z8k
;
1747 switch (internal_f
->f_flags
& F_MACHMASK
)
1750 machine
= bfd_mach_z8001
;
1753 machine
= bfd_mach_z8002
;
1762 arch
= bfd_arch_i860
;
1769 arch
= bfd_arch_i960
;
1770 switch (F_I960TYPE
& internal_f
->f_flags
)
1774 machine
= bfd_mach_i960_core
;
1777 machine
= bfd_mach_i960_kb_sb
;
1780 machine
= bfd_mach_i960_mc
;
1783 machine
= bfd_mach_i960_xa
;
1786 machine
= bfd_mach_i960_ca
;
1789 machine
= bfd_mach_i960_ka_sa
;
1792 machine
= bfd_mach_i960_jx
;
1795 machine
= bfd_mach_i960_hx
;
1809 if (xcoff_data (abfd
)->cputype
!= -1)
1810 cputype
= xcoff_data (abfd
)->cputype
& 0xff;
1813 /* We did not get a value from the a.out header. If the
1814 file has not been stripped, we may be able to get the
1815 architecture information from the first symbol, if it
1816 is a .file symbol. */
1817 if (obj_raw_syment_count (abfd
) == 0)
1821 bfd_byte buf
[SYMESZ
];
1822 struct internal_syment sym
;
1824 if (bfd_seek (abfd
, obj_sym_filepos (abfd
), SEEK_SET
) != 0
1825 || bfd_read (buf
, 1, SYMESZ
, abfd
) != SYMESZ
)
1827 coff_swap_sym_in (abfd
, (PTR
) buf
, (PTR
) &sym
);
1828 if (sym
.n_sclass
== C_FILE
)
1829 cputype
= sym
.n_type
& 0xff;
1835 /* FIXME: We don't handle all cases here. */
1841 /* PowerPC Macs use the same magic numbers as RS/6000
1842 (because that's how they were bootstrapped originally),
1843 but they are always PowerPC architecture. */
1844 arch
= bfd_arch_powerpc
;
1847 arch
= bfd_arch_rs6000
;
1849 #endif /* POWERMAC */
1853 arch
= bfd_arch_powerpc
;
1856 case 2: /* 64 bit PowerPC */
1857 arch
= bfd_arch_powerpc
;
1861 arch
= bfd_arch_powerpc
;
1865 arch
= bfd_arch_rs6000
;
1875 arch
= bfd_arch_we32k
;
1882 arch
= bfd_arch_h8300
;
1883 machine
= bfd_mach_h8300
;
1884 /* !! FIXME this probably isn't the right place for this */
1885 abfd
->flags
|= BFD_IS_RELAXABLE
;
1891 arch
= bfd_arch_h8300
;
1892 machine
= bfd_mach_h8300h
;
1893 /* !! FIXME this probably isn't the right place for this */
1894 abfd
->flags
|= BFD_IS_RELAXABLE
;
1900 arch
= bfd_arch_h8300
;
1901 machine
= bfd_mach_h8300s
;
1902 /* !! FIXME this probably isn't the right place for this */
1903 abfd
->flags
|= BFD_IS_RELAXABLE
;
1907 #ifdef SH_ARCH_MAGIC_BIG
1908 case SH_ARCH_MAGIC_BIG
:
1909 case SH_ARCH_MAGIC_LITTLE
:
1917 arch
= bfd_arch_h8500
;
1924 #ifdef LYNXCOFFMAGIC
1927 arch
= bfd_arch_sparc
;
1934 arch
= bfd_arch_tic30
;
1938 #ifdef TIC80_ARCH_MAGIC
1939 case TIC80_ARCH_MAGIC
:
1940 arch
= bfd_arch_tic80
;
1946 arch
= bfd_arch_mcore
;
1949 default: /* Unreadable input file type */
1950 arch
= bfd_arch_obscure
;
1954 bfd_default_set_arch_mach (abfd
, arch
, machine
);
1958 #ifdef SYMNAME_IN_DEBUG
1960 static boolean symname_in_debug_hook
1961 PARAMS ((bfd
*, struct internal_syment
*));
1964 symname_in_debug_hook (abfd
, sym
)
1965 bfd
* abfd ATTRIBUTE_UNUSED
;
1966 struct internal_syment
*sym
;
1968 return SYMNAME_IN_DEBUG (sym
) ? true : false;
1973 #define symname_in_debug_hook \
1974 (boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false
1980 /* Handle the csect auxent of a C_EXT or C_HIDEXT symbol. */
1982 static boolean coff_pointerize_aux_hook
1983 PARAMS ((bfd
*, combined_entry_type
*, combined_entry_type
*,
1984 unsigned int, combined_entry_type
*));
1988 coff_pointerize_aux_hook (abfd
, table_base
, symbol
, indaux
, aux
)
1989 bfd
*abfd ATTRIBUTE_UNUSED
;
1990 combined_entry_type
*table_base
;
1991 combined_entry_type
*symbol
;
1992 unsigned int indaux
;
1993 combined_entry_type
*aux
;
1995 int class = symbol
->u
.syment
.n_sclass
;
1997 if ((class == C_EXT
|| class == C_HIDEXT
)
1998 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2000 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) == XTY_LD
)
2002 aux
->u
.auxent
.x_csect
.x_scnlen
.p
=
2003 table_base
+ aux
->u
.auxent
.x_csect
.x_scnlen
.l
;
2004 aux
->fix_scnlen
= 1;
2007 /* Return true to indicate that the caller should not do any
2008 further work on this auxent. */
2012 /* Return false to indicate that this auxent should be handled by
2020 /* We don't want to pointerize bal entries. */
2022 static boolean coff_pointerize_aux_hook
2023 PARAMS ((bfd
*, combined_entry_type
*, combined_entry_type
*,
2024 unsigned int, combined_entry_type
*));
2028 coff_pointerize_aux_hook (abfd
, table_base
, symbol
, indaux
, aux
)
2029 bfd
*abfd ATTRIBUTE_UNUSED
;
2030 combined_entry_type
*table_base ATTRIBUTE_UNUSED
;
2031 combined_entry_type
*symbol
;
2032 unsigned int indaux
;
2033 combined_entry_type
*aux ATTRIBUTE_UNUSED
;
2035 /* Return true if we don't want to pointerize this aux entry, which
2036 is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */
2038 && (symbol
->u
.syment
.n_sclass
== C_LEAFPROC
2039 || symbol
->u
.syment
.n_sclass
== C_LEAFSTAT
2040 || symbol
->u
.syment
.n_sclass
== C_LEAFEXT
));
2045 #define coff_pointerize_aux_hook 0
2048 #endif /* ! RS6000COFF_C */
2050 /* Print an aux entry. This returns true if it has printed it. */
2052 static boolean coff_print_aux
2053 PARAMS ((bfd
*, FILE *, combined_entry_type
*, combined_entry_type
*,
2054 combined_entry_type
*, unsigned int));
2057 coff_print_aux (abfd
, file
, table_base
, symbol
, aux
, indaux
)
2058 bfd
*abfd ATTRIBUTE_UNUSED
;
2059 FILE *file ATTRIBUTE_UNUSED
;
2060 combined_entry_type
*table_base ATTRIBUTE_UNUSED
;
2061 combined_entry_type
*symbol ATTRIBUTE_UNUSED
;
2062 combined_entry_type
*aux ATTRIBUTE_UNUSED
;
2063 unsigned int indaux ATTRIBUTE_UNUSED
;
2066 if ((symbol
->u
.syment
.n_sclass
== C_EXT
2067 || symbol
->u
.syment
.n_sclass
== C_HIDEXT
)
2068 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2070 /* This is a csect entry. */
2071 fprintf (file
, "AUX ");
2072 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) != XTY_LD
)
2074 BFD_ASSERT (! aux
->fix_scnlen
);
2075 fprintf (file
, "val %5ld", aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2079 fprintf (file
, "indx ");
2080 if (! aux
->fix_scnlen
)
2081 fprintf (file
, "%4ld", aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2083 fprintf (file
, "%4ld",
2084 (long) (aux
->u
.auxent
.x_csect
.x_scnlen
.p
- table_base
));
2087 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2088 aux
->u
.auxent
.x_csect
.x_parmhash
,
2089 (unsigned int) aux
->u
.auxent
.x_csect
.x_snhash
,
2090 SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
),
2091 SMTYP_ALIGN (aux
->u
.auxent
.x_csect
.x_smtyp
),
2092 (unsigned int) aux
->u
.auxent
.x_csect
.x_smclas
,
2093 aux
->u
.auxent
.x_csect
.x_stab
,
2094 (unsigned int) aux
->u
.auxent
.x_csect
.x_snstab
);
2099 /* Return false to indicate that no special action was taken. */
2107 To write relocations, the back end steps though the
2108 canonical relocation table and create an
2109 @code{internal_reloc}. The symbol index to use is removed from
2110 the @code{offset} field in the symbol table supplied. The
2111 address comes directly from the sum of the section base
2112 address and the relocation offset; the type is dug directly
2113 from the howto field. Then the @code{internal_reloc} is
2114 swapped into the shape of an @code{external_reloc} and written
2121 static int compare_arelent_ptr
PARAMS ((const PTR
, const PTR
));
2123 /* AUX's ld wants relocations to be sorted */
2125 compare_arelent_ptr (x
, y
)
2129 const arelent
**a
= (const arelent
**) x
;
2130 const arelent
**b
= (const arelent
**) y
;
2131 bfd_size_type aadr
= (*a
)->address
;
2132 bfd_size_type badr
= (*b
)->address
;
2134 return (aadr
< badr
? -1 : badr
< aadr
? 1 : 0);
2137 #endif /* TARG_AUX */
2140 coff_write_relocs (abfd
, first_undef
)
2146 for (s
= abfd
->sections
; s
!= (asection
*) NULL
; s
= s
->next
)
2149 struct external_reloc dst
;
2155 /* sort relocations before we write them out */
2156 p
= (arelent
**) bfd_malloc (s
->reloc_count
* sizeof (arelent
*));
2157 if (p
== NULL
&& s
->reloc_count
> 0)
2159 memcpy (p
, s
->orelocation
, s
->reloc_count
* sizeof (arelent
*));
2160 qsort (p
, s
->reloc_count
, sizeof (arelent
*), compare_arelent_ptr
);
2163 if (bfd_seek (abfd
, s
->rel_filepos
, SEEK_SET
) != 0)
2165 for (i
= 0; i
< s
->reloc_count
; i
++)
2167 struct internal_reloc n
;
2169 memset ((PTR
) & n
, 0, sizeof (n
));
2171 /* Now we've renumbered the symbols we know where the
2172 undefined symbols live in the table. Check the reloc
2173 entries for symbols who's output bfd isn't the right one.
2174 This is because the symbol was undefined (which means
2175 that all the pointers are never made to point to the same
2176 place). This is a bad thing,'cause the symbols attached
2177 to the output bfd are indexed, so that the relocation
2178 entries know which symbol index they point to. So we
2179 have to look up the output symbol here. */
2181 if (q
->sym_ptr_ptr
[0]->the_bfd
!= abfd
)
2184 const char *sname
= q
->sym_ptr_ptr
[0]->name
;
2185 asymbol
**outsyms
= abfd
->outsymbols
;
2186 for (i
= first_undef
; outsyms
[i
]; i
++)
2188 const char *intable
= outsyms
[i
]->name
;
2189 if (strcmp (intable
, sname
) == 0) {
2190 /* got a hit, so repoint the reloc */
2191 q
->sym_ptr_ptr
= outsyms
+ i
;
2197 n
.r_vaddr
= q
->address
+ s
->vma
;
2200 /* The 29k const/consth reloc pair is a real kludge. The consth
2201 part doesn't have a symbol; it has an offset. So rebuilt
2203 if (q
->howto
->type
== R_IHCONST
)
2204 n
.r_symndx
= q
->addend
;
2209 if (q
->sym_ptr_ptr
== bfd_abs_section_ptr
->symbol_ptr_ptr
)
2210 /* This is a relocation relative to the absolute symbol. */
2214 n
.r_symndx
= get_index ((*(q
->sym_ptr_ptr
)));
2215 /* Take notice if the symbol reloc points to a symbol
2216 we don't have in our symbol table. What should we
2218 if (n
.r_symndx
> obj_conv_table_size (abfd
))
2223 #ifdef SWAP_OUT_RELOC_OFFSET
2224 n
.r_offset
= q
->addend
;
2228 /* Work out reloc type from what is required */
2229 SELECT_RELOC (n
, q
->howto
);
2231 n
.r_type
= q
->howto
->type
;
2233 coff_swap_reloc_out (abfd
, &n
, &dst
);
2234 if (bfd_write ((PTR
) & dst
, 1, RELSZ
, abfd
) != RELSZ
)
2247 /* Set flags and magic number of a coff file from architecture and machine
2248 type. Result is true if we can represent the arch&type, false if not. */
2251 coff_set_flags (abfd
, magicp
, flagsp
)
2253 unsigned int *magicp ATTRIBUTE_UNUSED
;
2254 unsigned short *flagsp ATTRIBUTE_UNUSED
;
2256 switch (bfd_get_arch (abfd
))
2261 switch (bfd_get_mach (abfd
))
2263 case bfd_mach_z8001
:
2266 case bfd_mach_z8002
:
2280 *magicp
= I960ROMAGIC
;
2282 ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC :
2283 I960RWMAGIC); FIXME???
2285 switch (bfd_get_mach (abfd
))
2287 case bfd_mach_i960_core
:
2290 case bfd_mach_i960_kb_sb
:
2293 case bfd_mach_i960_mc
:
2296 case bfd_mach_i960_xa
:
2299 case bfd_mach_i960_ca
:
2302 case bfd_mach_i960_ka_sa
:
2305 case bfd_mach_i960_jx
:
2308 case bfd_mach_i960_hx
:
2321 case bfd_arch_tic30
:
2322 *magicp
= TIC30MAGIC
;
2325 #ifdef TIC80_ARCH_MAGIC
2326 case bfd_arch_tic80
:
2327 *magicp
= TIC80_ARCH_MAGIC
;
2332 * magicp
= ARMMAGIC
;
2334 if (APCS_SET (abfd
))
2336 if (APCS_26_FLAG (abfd
))
2337 * flagsp
|= F_APCS26
;
2339 if (APCS_FLOAT_FLAG (abfd
))
2340 * flagsp
|= F_APCS_FLOAT
;
2342 if (PIC_FLAG (abfd
))
2345 if (INTERWORK_SET (abfd
) && INTERWORK_FLAG (abfd
))
2346 * flagsp
|= F_INTERWORK
;
2347 switch (bfd_get_mach (abfd
))
2349 case bfd_mach_arm_2
: * flagsp
|= F_ARM_2
; break;
2350 case bfd_mach_arm_2a
: * flagsp
|= F_ARM_2a
; break;
2351 case bfd_mach_arm_3
: * flagsp
|= F_ARM_3
; break;
2352 case bfd_mach_arm_3M
: * flagsp
|= F_ARM_3M
; break;
2353 case bfd_mach_arm_4
: * flagsp
|= F_ARM_4
; break;
2354 case bfd_mach_arm_4T
: * flagsp
|= F_ARM_4T
; break;
2355 case bfd_mach_arm_5
: * flagsp
|= F_ARM_5
; break;
2356 case bfd_mach_arm_5T
: * flagsp
|= F_ARM_5
; break; /* XXX - we do not have an F_ARM_5T */
2361 case bfd_arch_powerpc
:
2368 *magicp
= I386MAGIC
;
2370 /* Just overwrite the usual value if we're doing Lynx. */
2371 *magicp
= LYNXCOFFMAGIC
;
2378 *magicp
= I860MAGIC
;
2384 #ifdef APOLLOM68KMAGIC
2385 *magicp
= APOLLO_COFF_VERSION_NUMBER
;
2387 /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */
2388 #ifdef NAMES_HAVE_UNDERSCORE
2389 *magicp
= MC68KBCSMAGIC
;
2391 *magicp
= MC68MAGIC
;
2395 /* Just overwrite the usual value if we're doing Lynx. */
2396 *magicp
= LYNXCOFFMAGIC
;
2404 *magicp
= MC88OMAGIC
;
2409 case bfd_arch_h8300
:
2410 switch (bfd_get_mach (abfd
))
2412 case bfd_mach_h8300
:
2413 *magicp
= H8300MAGIC
;
2415 case bfd_mach_h8300h
:
2416 *magicp
= H8300HMAGIC
;
2418 case bfd_mach_h8300s
:
2419 *magicp
= H8300SMAGIC
;
2425 #ifdef SH_ARCH_MAGIC_BIG
2427 if (bfd_big_endian (abfd
))
2428 *magicp
= SH_ARCH_MAGIC_BIG
;
2430 *magicp
= SH_ARCH_MAGIC_LITTLE
;
2436 case bfd_arch_sparc
:
2437 *magicp
= SPARCMAGIC
;
2439 /* Just overwrite the usual value if we're doing Lynx. */
2440 *magicp
= LYNXCOFFMAGIC
;
2447 case bfd_arch_h8500
:
2448 *magicp
= H8500MAGIC
;
2452 #ifdef A29K_MAGIC_BIG
2454 if (bfd_big_endian (abfd
))
2455 *magicp
= A29K_MAGIC_BIG
;
2457 *magicp
= A29K_MAGIC_LITTLE
;
2463 case bfd_arch_we32k
:
2464 *magicp
= WE32KMAGIC
;
2470 case bfd_arch_rs6000
:
2472 case bfd_arch_powerpc
:
2474 *magicp
= U802TOCMAGIC
;
2480 case bfd_arch_mcore
:
2481 * magicp
= MCOREMAGIC
;
2485 default: /* Unknown architecture */
2486 /* return false; -- fall through to "return false" below, to avoid
2487 "statement never reached" errors on the one below. */
2496 coff_set_arch_mach (abfd
, arch
, machine
)
2498 enum bfd_architecture arch
;
2499 unsigned long machine
;
2502 unsigned short dummy2
;
2504 if (! bfd_default_set_arch_mach (abfd
, arch
, machine
))
2507 if (arch
!= bfd_arch_unknown
&&
2508 coff_set_flags (abfd
, &dummy1
, &dummy2
) != true)
2509 return false; /* We can't represent this type */
2511 return true; /* We're easy ... */
2514 #ifdef COFF_IMAGE_WITH_PE
2516 /* This is used to sort sections by VMA, as required by PE image
2519 static int sort_by_secaddr
PARAMS ((const PTR
, const PTR
));
2522 sort_by_secaddr (arg1
, arg2
)
2526 const asection
*a
= *(const asection
**) arg1
;
2527 const asection
*b
= *(const asection
**) arg2
;
2529 if (a
->vma
< b
->vma
)
2531 else if (a
->vma
> b
->vma
)
2537 #endif /* COFF_IMAGE_WITH_PE */
2539 /* Calculate the file position for each section. */
2542 #define ALIGN_SECTIONS_IN_FILE
2545 #undef ALIGN_SECTIONS_IN_FILE
2549 coff_compute_section_file_positions (abfd
)
2553 asection
*previous
= (asection
*) NULL
;
2554 file_ptr sofar
= FILHSZ
;
2555 boolean align_adjust
;
2556 #ifdef ALIGN_SECTIONS_IN_FILE
2561 /* On XCOFF, if we have symbols, set up the .debug section. */
2562 if (bfd_get_symcount (abfd
) > 0)
2565 bfd_size_type i
, symcount
;
2569 symcount
= bfd_get_symcount (abfd
);
2570 for (symp
= abfd
->outsymbols
, i
= 0; i
< symcount
; symp
++, i
++)
2572 coff_symbol_type
*cf
;
2574 cf
= coff_symbol_from (abfd
, *symp
);
2576 && cf
->native
!= NULL
2577 && SYMNAME_IN_DEBUG (&cf
->native
->u
.syment
))
2581 len
= strlen (bfd_asymbol_name (*symp
));
2590 dsec
= bfd_make_section_old_way (abfd
, ".debug");
2593 dsec
->_raw_size
= sz
;
2594 dsec
->flags
|= SEC_HAS_CONTENTS
;
2599 #ifdef COFF_IMAGE_WITH_PE
2601 if (coff_data (abfd
)->link_info
)
2603 page_size
= pe_data (abfd
)->pe_opthdr
.FileAlignment
;
2606 page_size
= PE_DEF_FILE_ALIGNMENT
;
2608 #ifdef COFF_PAGE_SIZE
2609 int page_size
= COFF_PAGE_SIZE
;
2613 if (bfd_get_start_address (abfd
))
2615 /* A start address may have been added to the original file. In this
2616 case it will need an optional header to record it. */
2617 abfd
->flags
|= EXEC_P
;
2620 if (abfd
->flags
& EXEC_P
)
2623 else if (xcoff_data (abfd
)->full_aouthdr
)
2626 sofar
+= SMALL_AOUTSZ
;
2629 sofar
+= abfd
->section_count
* SCNHSZ
;
2632 /* XCOFF handles overflows in the reloc and line number count fields
2633 by allocating a new section header to hold the correct counts. */
2634 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
2635 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
2639 #ifdef COFF_IMAGE_WITH_PE
2641 /* PE requires the sections to be in memory order when listed in
2642 the section headers. It also does not like empty loadable
2643 sections. The sections apparently do not have to be in the
2644 right order in the image file itself, but we do need to get the
2645 target_index values right. */
2648 asection
**section_list
;
2653 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
2656 /* We allocate an extra cell to simplify the final loop. */
2657 section_list
= bfd_malloc (sizeof (struct asection
*) * (count
+ 1));
2658 if (section_list
== NULL
)
2662 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
2664 section_list
[i
] = current
;
2667 section_list
[i
] = NULL
;
2669 qsort (section_list
, count
, sizeof (asection
*), sort_by_secaddr
);
2671 /* Rethread the linked list into sorted order; at the same time,
2672 assign target_index values. */
2674 abfd
->sections
= section_list
[0];
2675 for (i
= 0; i
< count
; i
++)
2677 current
= section_list
[i
];
2678 current
->next
= section_list
[i
+ 1];
2680 /* Later, if the section has zero size, we'll be throwing it
2681 away, so we don't want to number it now. Note that having
2682 a zero size and having real contents are different
2683 concepts: .bss has no contents, but (usually) non-zero
2685 if (current
->_raw_size
== 0)
2687 /* Discard. However, it still might have (valid) symbols
2688 in it, so arbitrarily set it to section 1 (indexing is
2689 1-based here; usually .text). __end__ and other
2690 contents of .endsection really have this happen.
2691 FIXME: This seems somewhat dubious. */
2692 current
->target_index
= 1;
2695 current
->target_index
= target_index
++;
2698 free (section_list
);
2700 #else /* ! COFF_IMAGE_WITH_PE */
2702 /* Set the target_index field. */
2706 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
2707 current
->target_index
= target_index
++;
2709 #endif /* ! COFF_IMAGE_WITH_PE */
2711 align_adjust
= false;
2712 for (current
= abfd
->sections
;
2713 current
!= (asection
*) NULL
;
2714 current
= current
->next
)
2716 #ifdef COFF_IMAGE_WITH_PE
2717 /* With PE we have to pad each section to be a multiple of its
2718 page size too, and remember both sizes. */
2719 if (coff_section_data (abfd
, current
) == NULL
)
2721 current
->used_by_bfd
=
2722 (PTR
) bfd_zalloc (abfd
, sizeof (struct coff_section_tdata
));
2723 if (current
->used_by_bfd
== NULL
)
2726 if (pei_section_data (abfd
, current
) == NULL
)
2728 coff_section_data (abfd
, current
)->tdata
=
2729 (PTR
) bfd_zalloc (abfd
, sizeof (struct pei_section_tdata
));
2730 if (coff_section_data (abfd
, current
)->tdata
== NULL
)
2733 if (pei_section_data (abfd
, current
)->virt_size
== 0)
2734 pei_section_data (abfd
, current
)->virt_size
= current
->_raw_size
;
2737 /* Only deal with sections which have contents. */
2738 if (!(current
->flags
& SEC_HAS_CONTENTS
))
2741 #ifdef COFF_IMAGE_WITH_PE
2742 /* Make sure we skip empty sections in a PE image. */
2743 if (current
->_raw_size
== 0)
2747 /* Align the sections in the file to the same boundary on
2748 which they are aligned in virtual memory. I960 doesn't
2749 do this (FIXME) so we can stay in sync with Intel. 960
2750 doesn't yet page from files... */
2751 #ifdef ALIGN_SECTIONS_IN_FILE
2752 if ((abfd
->flags
& EXEC_P
) != 0)
2754 /* make sure this section is aligned on the right boundary - by
2755 padding the previous section up if necessary */
2758 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
2759 if (previous
!= (asection
*) NULL
)
2761 previous
->_raw_size
+= sofar
- old_sofar
;
2767 /* In demand paged files the low order bits of the file offset
2768 must match the low order bits of the virtual address. */
2769 #ifdef COFF_PAGE_SIZE
2770 if ((abfd
->flags
& D_PAGED
) != 0
2771 && (current
->flags
& SEC_ALLOC
) != 0)
2772 sofar
+= (current
->vma
- sofar
) % page_size
;
2774 current
->filepos
= sofar
;
2776 #ifdef COFF_IMAGE_WITH_PE
2777 /* Set the padded size. */
2778 current
->_raw_size
= (current
->_raw_size
+ page_size
-1) & -page_size
;
2781 sofar
+= current
->_raw_size
;
2783 #ifdef ALIGN_SECTIONS_IN_FILE
2784 /* make sure that this section is of the right size too */
2785 if ((abfd
->flags
& EXEC_P
) == 0)
2787 bfd_size_type old_size
;
2789 old_size
= current
->_raw_size
;
2790 current
->_raw_size
= BFD_ALIGN (current
->_raw_size
,
2791 1 << current
->alignment_power
);
2792 align_adjust
= current
->_raw_size
!= old_size
;
2793 sofar
+= current
->_raw_size
- old_size
;
2798 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
2799 align_adjust
= sofar
!= old_sofar
;
2800 current
->_raw_size
+= sofar
- old_sofar
;
2804 #ifdef COFF_IMAGE_WITH_PE
2805 /* For PE we need to make sure we pad out to the aligned
2806 _raw_size, in case the caller only writes out data to the
2807 unaligned _raw_size. */
2808 if (pei_section_data (abfd
, current
)->virt_size
< current
->_raw_size
)
2809 align_adjust
= true;
2813 /* Force .lib sections to start at zero. The vma is then
2814 incremented in coff_set_section_contents. This is right for
2816 if (strcmp (current
->name
, _LIB
) == 0)
2817 bfd_set_section_vma (abfd
, current
, 0);
2823 /* It is now safe to write to the output file. If we needed an
2824 alignment adjustment for the last section, then make sure that
2825 there is a byte at offset sofar. If there are no symbols and no
2826 relocs, then nothing follows the last section. If we don't force
2827 the last byte out, then the file may appear to be truncated. */
2833 if (bfd_seek (abfd
, sofar
- 1, SEEK_SET
) != 0
2834 || bfd_write (&b
, 1, 1, abfd
) != 1)
2838 /* Make sure the relocations are aligned. We don't need to make
2839 sure that this byte exists, because it will only matter if there
2840 really are relocs. */
2841 sofar
= BFD_ALIGN (sofar
, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER
);
2843 obj_relocbase (abfd
) = sofar
;
2844 abfd
->output_has_begun
= true;
2851 /* This can never work, because it is called too late--after the
2852 section positions have been set. I can't figure out what it is
2853 for, so I am going to disable it--Ian Taylor 20 March 1996. */
2855 /* If .file, .text, .data, .bss symbols are missing, add them. */
2856 /* @@ Should we only be adding missing symbols, or overriding the aux
2857 values for existing section symbols? */
2859 coff_add_missing_symbols (abfd
)
2862 unsigned int nsyms
= bfd_get_symcount (abfd
);
2863 asymbol
**sympp
= abfd
->outsymbols
;
2866 int need_text
= 1, need_data
= 1, need_bss
= 1, need_file
= 1;
2868 for (i
= 0; i
< nsyms
; i
++)
2870 coff_symbol_type
*csym
= coff_symbol_from (abfd
, sympp
[i
]);
2874 /* only do this if there is a coff representation of the input
2876 if (csym
->native
&& csym
->native
->u
.syment
.n_sclass
== C_FILE
)
2881 name
= csym
->symbol
.name
;
2884 if (!strcmp (name
, _TEXT
))
2887 else if (!strcmp (name
, ".wtext"))
2890 else if (!strcmp (name
, _DATA
))
2892 else if (!strcmp (name
, _BSS
))
2896 /* Now i == bfd_get_symcount (abfd). */
2897 /* @@ For now, don't deal with .file symbol. */
2900 if (!need_text
&& !need_data
&& !need_bss
&& !need_file
)
2902 nsyms
+= need_text
+ need_data
+ need_bss
+ need_file
;
2903 sympp2
= (asymbol
**) bfd_alloc (abfd
, nsyms
* sizeof (asymbol
*));
2906 memcpy (sympp2
, sympp
, i
* sizeof (asymbol
*));
2909 /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */
2913 sympp2
[i
++] = coff_section_symbol (abfd
, _TEXT
);
2915 sympp2
[i
++] = coff_section_symbol (abfd
, _DATA
);
2917 sympp2
[i
++] = coff_section_symbol (abfd
, _BSS
);
2918 BFD_ASSERT (i
== nsyms
);
2919 bfd_set_symtab (abfd
, sympp2
, nsyms
);
2928 coff_write_object_contents (abfd
)
2932 boolean hasrelocs
= false;
2933 boolean haslinno
= false;
2935 file_ptr reloc_base
;
2936 file_ptr lineno_base
;
2938 unsigned long reloc_size
= 0;
2939 unsigned long lnno_size
= 0;
2940 boolean long_section_names
;
2941 asection
*text_sec
= NULL
;
2942 asection
*data_sec
= NULL
;
2943 asection
*bss_sec
= NULL
;
2944 struct internal_filehdr internal_f
;
2945 struct internal_aouthdr internal_a
;
2946 #ifdef COFF_LONG_SECTION_NAMES
2947 size_t string_size
= STRING_SIZE_SIZE
;
2950 bfd_set_error (bfd_error_system_call
);
2952 /* Make a pass through the symbol table to count line number entries and
2953 put them into the correct asections */
2955 lnno_size
= coff_count_linenumbers (abfd
) * LINESZ
;
2957 if (abfd
->output_has_begun
== false)
2959 if (! coff_compute_section_file_positions (abfd
))
2963 reloc_base
= obj_relocbase (abfd
);
2965 /* Work out the size of the reloc and linno areas */
2967 for (current
= abfd
->sections
; current
!= NULL
; current
=
2969 reloc_size
+= current
->reloc_count
* RELSZ
;
2971 lineno_base
= reloc_base
+ reloc_size
;
2972 sym_base
= lineno_base
+ lnno_size
;
2974 /* Indicate in each section->line_filepos its actual file address */
2975 for (current
= abfd
->sections
; current
!= NULL
; current
=
2978 if (current
->lineno_count
)
2980 current
->line_filepos
= lineno_base
;
2981 current
->moving_line_filepos
= lineno_base
;
2982 lineno_base
+= current
->lineno_count
* LINESZ
;
2986 current
->line_filepos
= 0;
2988 if (current
->reloc_count
)
2990 current
->rel_filepos
= reloc_base
;
2991 reloc_base
+= current
->reloc_count
* RELSZ
;
2995 current
->rel_filepos
= 0;
2999 /* Write section headers to the file. */
3000 internal_f
.f_nscns
= 0;
3002 if ((abfd
->flags
& EXEC_P
) != 0)
3003 scn_base
= FILHSZ
+ AOUTSZ
;
3008 if (xcoff_data (abfd
)->full_aouthdr
)
3011 scn_base
+= SMALL_AOUTSZ
;
3015 if (bfd_seek (abfd
, scn_base
, SEEK_SET
) != 0)
3018 long_section_names
= false;
3019 for (current
= abfd
->sections
;
3021 current
= current
->next
)
3023 struct internal_scnhdr section
;
3026 /* If we've got a .reloc section, remember. */
3028 #ifdef COFF_IMAGE_WITH_PE
3029 if (strcmp (current
->name
, ".reloc") == 0)
3031 pe_data (abfd
)->has_reloc_section
= 1;
3036 internal_f
.f_nscns
++;
3038 strncpy (section
.s_name
, current
->name
, SCNNMLEN
);
3040 #ifdef COFF_LONG_SECTION_NAMES
3041 /* Handle long section names as in PE. This must be compatible
3042 with the code in coff_write_symbols and _bfd_coff_final_link. */
3046 len
= strlen (current
->name
);
3049 memset (section
.s_name
, 0, SCNNMLEN
);
3050 sprintf (section
.s_name
, "/%lu", (unsigned long) string_size
);
3051 string_size
+= len
+ 1;
3052 long_section_names
= true;
3058 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3059 Ian Taylor <ian@cygnus.com>. */
3060 if (strcmp (current
->name
, _LIB
) == 0)
3061 section
.s_vaddr
= 0;
3064 section
.s_vaddr
= current
->vma
;
3065 section
.s_paddr
= current
->lma
;
3066 section
.s_size
= current
->_raw_size
;
3069 section
.s_paddr
= 0;
3071 #ifdef COFF_IMAGE_WITH_PE
3072 /* Reminder: s_paddr holds the virtual size of the section. */
3073 if (coff_section_data (abfd
, current
) != NULL
3074 && pei_section_data (abfd
, current
) != NULL
)
3075 section
.s_paddr
= pei_section_data (abfd
, current
)->virt_size
;
3077 section
.s_paddr
= 0;
3081 If this section has no size or is unloadable then the scnptr
3084 if (current
->_raw_size
== 0 ||
3085 (current
->flags
& (SEC_LOAD
| SEC_HAS_CONTENTS
)) == 0)
3087 section
.s_scnptr
= 0;
3091 section
.s_scnptr
= current
->filepos
;
3093 section
.s_relptr
= current
->rel_filepos
;
3094 section
.s_lnnoptr
= current
->line_filepos
;
3095 section
.s_nreloc
= current
->reloc_count
;
3096 section
.s_nlnno
= current
->lineno_count
;
3097 if (current
->reloc_count
!= 0)
3099 if (current
->lineno_count
!= 0)
3103 /* Indicate the use of an XCOFF overflow section header. */
3104 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3106 section
.s_nreloc
= 0xffff;
3107 section
.s_nlnno
= 0xffff;
3111 section
.s_flags
= sec_to_styp_flags (current
->name
, current
->flags
);
3113 if (!strcmp (current
->name
, _TEXT
))
3117 else if (!strcmp (current
->name
, _DATA
))
3121 else if (!strcmp (current
->name
, _BSS
))
3127 section
.s_align
= (current
->alignment_power
3128 ? 1 << current
->alignment_power
3132 section
.s_flags
|= (current
->alignment_power
& 0xF) << 8;
3136 #ifdef COFF_IMAGE_WITH_PE
3137 /* Suppress output of the sections if they are null. ld
3138 includes the bss and data sections even if there is no size
3139 assigned to them. NT loader doesn't like it if these section
3140 headers are included if the sections themselves are not
3141 needed. See also coff_compute_section_file_positions. */
3142 if (section
.s_size
== 0)
3143 internal_f
.f_nscns
--;
3148 if (coff_swap_scnhdr_out (abfd
, §ion
, &buff
) == 0
3149 || bfd_write ((PTR
) (&buff
), 1, SCNHSZ
, abfd
) != SCNHSZ
)
3154 /* PE stores COMDAT section information in the symbol table. If
3155 this section is supposed to have some COMDAT info, track down
3156 the symbol in the symbol table and modify it. */
3157 if ((current
->flags
& SEC_LINK_ONCE
) != 0)
3159 unsigned int i
, count
;
3161 coff_symbol_type
*csym
= NULL
;
3165 count
= bfd_get_symcount (abfd
);
3166 for (i
= 0, psym
= abfd
->outsymbols
; i
< count
; i
++, psym
++)
3168 if ((*psym
)->section
!= current
)
3171 /* Remember the location of the first symbol in this
3173 if (psymsec
== NULL
)
3176 /* See if this is the section symbol. */
3177 if (strcmp ((*psym
)->name
, current
->name
) == 0)
3179 csym
= coff_symbol_from (abfd
, *psym
);
3181 || csym
->native
== NULL
3182 || csym
->native
->u
.syment
.n_numaux
< 1
3183 || csym
->native
->u
.syment
.n_sclass
!= C_STAT
3184 || csym
->native
->u
.syment
.n_type
!= T_NULL
)
3187 /* Here *PSYM is the section symbol for CURRENT. */
3194 Note that we might not if we're converting the file from
3195 some other object file format. */
3198 combined_entry_type
*aux
;
3200 /* We don't touch the x_checksum field. The
3201 x_associated field is not currently supported. */
3203 aux
= csym
->native
+ 1;
3204 switch (current
->flags
& SEC_LINK_DUPLICATES
)
3206 case SEC_LINK_DUPLICATES_DISCARD
:
3207 aux
->u
.auxent
.x_scn
.x_comdat
= IMAGE_COMDAT_SELECT_ANY
;
3210 case SEC_LINK_DUPLICATES_ONE_ONLY
:
3211 aux
->u
.auxent
.x_scn
.x_comdat
=
3212 IMAGE_COMDAT_SELECT_NODUPLICATES
;
3215 case SEC_LINK_DUPLICATES_SAME_SIZE
:
3216 aux
->u
.auxent
.x_scn
.x_comdat
=
3217 IMAGE_COMDAT_SELECT_SAME_SIZE
;
3220 case SEC_LINK_DUPLICATES_SAME_CONTENTS
:
3221 aux
->u
.auxent
.x_scn
.x_comdat
=
3222 IMAGE_COMDAT_SELECT_EXACT_MATCH
;
3226 /* The COMDAT symbol must be the first symbol from this
3227 section in the symbol table. In order to make this
3228 work, we move the COMDAT symbol before the first
3229 symbol we found in the search above. It's OK to
3230 rearrange the symbol table at this point, because
3231 coff_renumber_symbols is going to rearrange it
3232 further and fix up all the aux entries. */
3233 if (psym
!= psymsec
)
3239 for (pcopy
= psym
; pcopy
> psymsec
; pcopy
--)
3240 pcopy
[0] = pcopy
[-1];
3245 #endif /* COFF_WITH_PE */
3249 /* XCOFF handles overflows in the reloc and line number count fields
3250 by creating a new section header to hold the correct values. */
3251 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3253 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3255 struct internal_scnhdr scnhdr
;
3258 internal_f
.f_nscns
++;
3259 strncpy (&(scnhdr
.s_name
[0]), current
->name
, 8);
3260 scnhdr
.s_paddr
= current
->reloc_count
;
3261 scnhdr
.s_vaddr
= current
->lineno_count
;
3263 scnhdr
.s_scnptr
= 0;
3264 scnhdr
.s_relptr
= current
->rel_filepos
;
3265 scnhdr
.s_lnnoptr
= current
->line_filepos
;
3266 scnhdr
.s_nreloc
= current
->target_index
;
3267 scnhdr
.s_nlnno
= current
->target_index
;
3268 scnhdr
.s_flags
= STYP_OVRFLO
;
3269 if (coff_swap_scnhdr_out (abfd
, &scnhdr
, &buff
) == 0
3270 || bfd_write ((PTR
) &buff
, 1, SCNHSZ
, abfd
) != SCNHSZ
)
3276 /* OK, now set up the filehdr... */
3278 /* Don't include the internal abs section in the section count */
3281 We will NOT put a fucking timestamp in the header here. Every time you
3282 put it back, I will come in and take it out again. I'm sorry. This
3283 field does not belong here. We fill it with a 0 so it compares the
3284 same but is not a reasonable time. -- gnu@cygnus.com
3286 internal_f
.f_timdat
= 0;
3288 internal_f
.f_flags
= 0;
3290 if (abfd
->flags
& EXEC_P
)
3291 internal_f
.f_opthdr
= AOUTSZ
;
3294 internal_f
.f_opthdr
= 0;
3296 if (xcoff_data (abfd
)->full_aouthdr
)
3297 internal_f
.f_opthdr
= AOUTSZ
;
3299 internal_f
.f_opthdr
= SMALL_AOUTSZ
;
3304 internal_f
.f_flags
|= F_RELFLG
;
3306 internal_f
.f_flags
|= F_LNNO
;
3307 if (abfd
->flags
& EXEC_P
)
3308 internal_f
.f_flags
|= F_EXEC
;
3310 #ifndef COFF_WITH_PE
3311 if (bfd_little_endian (abfd
))
3312 internal_f
.f_flags
|= F_AR32WR
;
3314 internal_f
.f_flags
|= F_AR32W
;
3317 #ifdef TIC80_TARGET_ID
3318 internal_f
.f_target_id
= TIC80_TARGET_ID
;
3322 FIXME, should do something about the other byte orders and
3327 if ((abfd
->flags
& DYNAMIC
) != 0)
3328 internal_f
.f_flags
|= F_SHROBJ
;
3329 if (bfd_get_section_by_name (abfd
, _LOADER
) != NULL
)
3330 internal_f
.f_flags
|= F_DYNLOAD
;
3333 memset (&internal_a
, 0, sizeof internal_a
);
3335 /* Set up architecture-dependent stuff */
3338 unsigned int magic
= 0;
3339 unsigned short flags
= 0;
3340 coff_set_flags (abfd
, &magic
, &flags
);
3341 internal_f
.f_magic
= magic
;
3342 internal_f
.f_flags
|= flags
;
3343 /* ...and the "opt"hdr... */
3346 #ifdef ULTRA3 /* NYU's machine */
3347 /* FIXME: This is a bogus check. I really want to see if there
3348 * is a .shbss or a .shdata section, if so then set the magic
3349 * number to indicate a shared data executable.
3351 if (internal_f
.f_nscns
>= 7)
3352 internal_a
.magic
= SHMAGIC
; /* Shared magic */
3355 internal_a
.magic
= NMAGIC
; /* Assume separate i/d */
3356 #define __A_MAGIC_SET__
3359 internal_a
.magic
= TIC80_ARCH_MAGIC
;
3360 #define __A_MAGIC_SET__
3363 /* FIXME: What are the a.out magic numbers for the i860? */
3364 internal_a
.magic
= 0;
3365 #define __A_MAGIC_SET__
3368 internal_a
.magic
= (magic
== I960ROMAGIC
? NMAGIC
: OMAGIC
);
3369 #define __A_MAGIC_SET__
3372 #define __A_MAGIC_SET__
3373 internal_a
.magic
= PAGEMAGICBCS
;
3377 #define __A_MAGIC_SET__
3378 internal_a
.magic
= APOLLO_COFF_VERSION_NUMBER
;
3381 #if defined(M68) || defined(WE32K) || defined(M68K)
3382 #define __A_MAGIC_SET__
3384 internal_a
.magic
= LYNXCOFFMAGIC
;
3386 #if defined(TARG_AUX)
3387 internal_a
.magic
= (abfd
->flags
& D_PAGED
? PAGEMAGICPEXECPAGED
:
3388 abfd
->flags
& WP_TEXT
? PAGEMAGICPEXECSWAPPED
:
3389 PAGEMAGICEXECSWAPPED
);
3391 #if defined (PAGEMAGICPEXECPAGED)
3392 internal_a
.magic
= PAGEMAGICPEXECPAGED
;
3394 #endif /* TARG_AUX */
3396 #endif /* M68 || WE32K || M68K */
3399 #define __A_MAGIC_SET__
3400 internal_a
.magic
= ZMAGIC
;
3404 #define __A_MAGIC_SET__
3405 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
3408 #if defined MCORE_PE
3409 #define __A_MAGIC_SET__
3410 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
3414 #define __A_MAGIC_SET__
3416 internal_a
.magic
= LYNXCOFFMAGIC
;
3418 internal_a
.magic
= ZMAGIC
;
3423 #define __A_MAGIC_SET__
3425 internal_a
.magic
= LYNXCOFFMAGIC
;
3430 #define __A_MAGIC_SET__
3431 internal_a
.magic
= (abfd
->flags
& D_PAGED
) ? RS6K_AOUTHDR_ZMAGIC
:
3432 (abfd
->flags
& WP_TEXT
) ? RS6K_AOUTHDR_NMAGIC
:
3433 RS6K_AOUTHDR_OMAGIC
;
3436 #ifndef __A_MAGIC_SET__
3437 #include "Your aouthdr magic number is not being set!"
3439 #undef __A_MAGIC_SET__
3443 /* FIXME: Does anybody ever set this to another value? */
3444 internal_a
.vstamp
= 0;
3446 /* Now should write relocs, strings, syms */
3447 obj_sym_filepos (abfd
) = sym_base
;
3449 if (bfd_get_symcount (abfd
) != 0)
3453 if (!coff_add_missing_symbols (abfd
))
3456 if (!coff_renumber_symbols (abfd
, &firstundef
))
3458 coff_mangle_symbols (abfd
);
3459 if (! coff_write_symbols (abfd
))
3461 if (! coff_write_linenumbers (abfd
))
3463 if (! coff_write_relocs (abfd
, firstundef
))
3466 #ifdef COFF_LONG_SECTION_NAMES
3467 else if (long_section_names
)
3469 /* If we have long section names we have to write out the string
3470 table even if there are no symbols. */
3471 if (! coff_write_symbols (abfd
))
3475 #ifdef COFF_IMAGE_WITH_PE
3477 else if ((abfd
->flags
& EXEC_P
) != 0)
3481 /* PowerPC PE appears to require that all executable files be
3482 rounded up to the page size. */
3485 BFD_ALIGN (sym_base
, COFF_PAGE_SIZE
) - 1,
3487 || bfd_write (&b
, 1, 1, abfd
) != 1)
3493 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
3494 backend linker, and obj_raw_syment_count is not valid until after
3495 coff_write_symbols is called. */
3496 if (obj_raw_syment_count (abfd
) != 0)
3498 internal_f
.f_symptr
= sym_base
;
3500 /* AIX appears to require that F_RELFLG not be set if there are
3501 local symbols but no relocations. */
3502 internal_f
.f_flags
&=~ F_RELFLG
;
3507 if (long_section_names
)
3508 internal_f
.f_symptr
= sym_base
;
3510 internal_f
.f_symptr
= 0;
3511 internal_f
.f_flags
|= F_LSYMS
;
3516 internal_a
.tsize
= bfd_get_section_size_before_reloc (text_sec
);
3517 internal_a
.text_start
= internal_a
.tsize
? text_sec
->vma
: 0;
3521 internal_a
.dsize
= bfd_get_section_size_before_reloc (data_sec
);
3522 internal_a
.data_start
= internal_a
.dsize
? data_sec
->vma
: 0;
3526 internal_a
.bsize
= bfd_get_section_size_before_reloc (bss_sec
);
3527 if (internal_a
.bsize
&& bss_sec
->vma
< internal_a
.data_start
)
3528 internal_a
.data_start
= bss_sec
->vma
;
3531 internal_a
.entry
= bfd_get_start_address (abfd
);
3532 internal_f
.f_nsyms
= obj_raw_syment_count (abfd
);
3535 if (xcoff_data (abfd
)->full_aouthdr
)
3538 asection
*loader_sec
;
3540 internal_a
.vstamp
= 1;
3542 internal_a
.o_snentry
= xcoff_data (abfd
)->snentry
;
3543 if (internal_a
.o_snentry
== 0)
3544 internal_a
.entry
= (bfd_vma
) -1;
3546 if (text_sec
!= NULL
)
3548 internal_a
.o_sntext
= text_sec
->target_index
;
3549 internal_a
.o_algntext
= bfd_get_section_alignment (abfd
, text_sec
);
3553 internal_a
.o_sntext
= 0;
3554 internal_a
.o_algntext
= 0;
3556 if (data_sec
!= NULL
)
3558 internal_a
.o_sndata
= data_sec
->target_index
;
3559 internal_a
.o_algndata
= bfd_get_section_alignment (abfd
, data_sec
);
3563 internal_a
.o_sndata
= 0;
3564 internal_a
.o_algndata
= 0;
3566 loader_sec
= bfd_get_section_by_name (abfd
, ".loader");
3567 if (loader_sec
!= NULL
)
3568 internal_a
.o_snloader
= loader_sec
->target_index
;
3570 internal_a
.o_snloader
= 0;
3571 if (bss_sec
!= NULL
)
3572 internal_a
.o_snbss
= bss_sec
->target_index
;
3574 internal_a
.o_snbss
= 0;
3576 toc
= xcoff_data (abfd
)->toc
;
3577 internal_a
.o_toc
= toc
;
3578 internal_a
.o_sntoc
= xcoff_data (abfd
)->sntoc
;
3580 internal_a
.o_modtype
= xcoff_data (abfd
)->modtype
;
3581 if (xcoff_data (abfd
)->cputype
!= -1)
3582 internal_a
.o_cputype
= xcoff_data (abfd
)->cputype
;
3585 switch (bfd_get_arch (abfd
))
3587 case bfd_arch_rs6000
:
3588 internal_a
.o_cputype
= 4;
3590 case bfd_arch_powerpc
:
3591 if (bfd_get_mach (abfd
) == 0)
3592 internal_a
.o_cputype
= 3;
3594 internal_a
.o_cputype
= 1;
3600 internal_a
.o_maxstack
= xcoff_data (abfd
)->maxstack
;
3601 internal_a
.o_maxdata
= xcoff_data (abfd
)->maxdata
;
3605 /* now write them */
3606 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
) != 0)
3610 coff_swap_filehdr_out (abfd
, (PTR
) & internal_f
, (PTR
) buff
);
3611 if (bfd_write ((PTR
) buff
, 1, FILHSZ
, abfd
) != FILHSZ
)
3614 if (abfd
->flags
& EXEC_P
)
3616 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
3617 include/coff/pe.h sets AOUTSZ == sizeof(PEAOUTHDR)) */
3619 coff_swap_aouthdr_out (abfd
, (PTR
) & internal_a
, (PTR
) buff
);
3620 if (bfd_write ((PTR
) buff
, 1, AOUTSZ
, abfd
) != AOUTSZ
)
3629 /* XCOFF seems to always write at least a small a.out header. */
3630 coff_swap_aouthdr_out (abfd
, (PTR
) &internal_a
, (PTR
) &buff
);
3631 if (xcoff_data (abfd
)->full_aouthdr
)
3634 size
= SMALL_AOUTSZ
;
3635 if (bfd_write ((PTR
) &buff
, 1, size
, abfd
) != size
)
3644 coff_set_section_contents (abfd
, section
, location
, offset
, count
)
3649 bfd_size_type count
;
3651 if (abfd
->output_has_begun
== false) /* set by bfd.c handler */
3653 if (! coff_compute_section_file_positions (abfd
))
3657 #if defined(_LIB) && !defined(TARG_AUX)
3659 /* The physical address field of a .lib section is used to hold the
3660 number of shared libraries in the section. This code counts the
3661 number of sections being written, and increments the lma field
3664 I have found no documentation on the contents of this section.
3665 Experimentation indicates that the section contains zero or more
3666 records, each of which has the following structure:
3668 - a (four byte) word holding the length of this record, in words,
3669 - a word that always seems to be set to "2",
3670 - the path to a shared library, null-terminated and then padded
3671 to a whole word boundary.
3673 bfd_assert calls have been added to alert if an attempt is made
3674 to write a section which doesn't follow these assumptions. The
3675 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
3676 <robertl@arnet.com> (Thanks!).
3678 Gvran Uddeborg <gvran@uddeborg.pp.se> */
3680 if (strcmp (section
->name
, _LIB
) == 0)
3682 bfd_byte
*rec
, *recend
;
3684 rec
= (bfd_byte
*) location
;
3685 recend
= rec
+ count
;
3686 while (rec
< recend
)
3689 rec
+= bfd_get_32 (abfd
, rec
) * 4;
3692 BFD_ASSERT (rec
== recend
);
3697 /* Don't write out bss sections - one way to do this is to
3698 see if the filepos has not been set. */
3699 if (section
->filepos
== 0)
3702 if (bfd_seek (abfd
, (file_ptr
) (section
->filepos
+ offset
), SEEK_SET
) != 0)
3707 return (bfd_write (location
, 1, count
, abfd
) == count
) ? true : false;
3713 coff_close_and_cleanup (abfd
)
3716 if (!bfd_read_p (abfd
))
3717 switch (abfd
->format
)
3720 if (!_bfd_write_archive_contents (abfd
))
3724 if (!coff_write_object_contents (abfd
))
3728 bfd_set_error (bfd_error_invalid_operation
);
3732 /* We depend on bfd_close to free all the memory on the objalloc. */
3739 buy_and_read (abfd
, where
, seek_direction
, size
)
3745 PTR area
= (PTR
) bfd_alloc (abfd
, size
);
3748 if (bfd_seek (abfd
, where
, seek_direction
) != 0
3749 || bfd_read (area
, 1, size
, abfd
) != size
)
3752 } /* buy_and_read() */
3758 Creating the linenumber table is done by reading in the entire
3759 coff linenumber table, and creating another table for internal use.
3761 A coff linenumber table is structured so that each function
3762 is marked as having a line number of 0. Each line within the
3763 function is an offset from the first line in the function. The
3764 base of the line number information for the table is stored in
3765 the symbol associated with the function.
3767 Note: The PE format uses line number 0 for a flag indicating a
3770 The information is copied from the external to the internal
3771 table, and each symbol which marks a function is marked by
3774 How does this work ?
3779 coff_slurp_line_table (abfd
, asect
)
3783 LINENO
*native_lineno
;
3784 alent
*lineno_cache
;
3786 BFD_ASSERT (asect
->lineno
== (alent
*) NULL
);
3788 native_lineno
= (LINENO
*) buy_and_read (abfd
,
3789 asect
->line_filepos
,
3792 asect
->lineno_count
));
3794 (alent
*) bfd_alloc (abfd
, (size_t) ((asect
->lineno_count
+ 1) * sizeof (alent
)));
3795 if (lineno_cache
== NULL
)
3799 unsigned int counter
= 0;
3800 alent
*cache_ptr
= lineno_cache
;
3801 LINENO
*src
= native_lineno
;
3803 while (counter
< asect
->lineno_count
)
3805 struct internal_lineno dst
;
3806 coff_swap_lineno_in (abfd
, src
, &dst
);
3807 cache_ptr
->line_number
= dst
.l_lnno
;
3809 if (cache_ptr
->line_number
== 0)
3813 coff_symbol_type
*sym
;
3816 symndx
= dst
.l_addr
.l_symndx
;
3818 || (unsigned long) symndx
>= obj_raw_syment_count (abfd
))
3820 (*_bfd_error_handler
)
3821 (_("%s: warning: illegal symbol index %ld in line numbers"),
3822 bfd_get_filename (abfd
), dst
.l_addr
.l_symndx
);
3826 /* FIXME: We should not be casting between ints and
3827 pointers like this. */
3828 sym
= ((coff_symbol_type
*)
3829 ((symndx
+ obj_raw_syments (abfd
))
3830 ->u
.syment
._n
._n_n
._n_zeroes
));
3831 cache_ptr
->u
.sym
= (asymbol
*) sym
;
3832 if (sym
->lineno
!= NULL
&& ! warned
)
3834 (*_bfd_error_handler
)
3835 (_("%s: warning: duplicate line number information for `%s'"),
3836 bfd_get_filename (abfd
),
3837 bfd_asymbol_name (&sym
->symbol
));
3839 sym
->lineno
= cache_ptr
;
3843 cache_ptr
->u
.offset
= dst
.l_addr
.l_paddr
3844 - bfd_section_vma (abfd
, asect
);
3845 } /* If no linenumber expect a symbol index */
3851 cache_ptr
->line_number
= 0;
3854 asect
->lineno
= lineno_cache
;
3855 /* FIXME, free native_lineno here, or use alloca or something. */
3859 /* Slurp in the symbol table, converting it to generic form. Note
3860 that if coff_relocate_section is defined, the linker will read
3861 symbols via coff_link_add_symbols, rather than via this routine. */
3864 coff_slurp_symbol_table (abfd
)
3867 combined_entry_type
*native_symbols
;
3868 coff_symbol_type
*cached_area
;
3869 unsigned int *table_ptr
;
3871 unsigned int number_of_symbols
= 0;
3873 if (obj_symbols (abfd
))
3876 /* Read in the symbol table */
3877 if ((native_symbols
= coff_get_normalized_symtab (abfd
)) == NULL
)
3882 /* Allocate enough room for all the symbols in cached form */
3883 cached_area
= ((coff_symbol_type
*)
3885 (obj_raw_syment_count (abfd
)
3886 * sizeof (coff_symbol_type
))));
3888 if (cached_area
== NULL
)
3890 table_ptr
= ((unsigned int *)
3892 (obj_raw_syment_count (abfd
)
3893 * sizeof (unsigned int))));
3895 if (table_ptr
== NULL
)
3899 coff_symbol_type
*dst
= cached_area
;
3900 unsigned int last_native_index
= obj_raw_syment_count (abfd
);
3901 unsigned int this_index
= 0;
3902 while (this_index
< last_native_index
)
3904 combined_entry_type
*src
= native_symbols
+ this_index
;
3905 table_ptr
[this_index
] = number_of_symbols
;
3906 dst
->symbol
.the_bfd
= abfd
;
3908 dst
->symbol
.name
= (char *) (src
->u
.syment
._n
._n_n
._n_offset
);
3909 /* We use the native name field to point to the cached field. */
3910 src
->u
.syment
._n
._n_n
._n_zeroes
= (long) dst
;
3911 dst
->symbol
.section
= coff_section_from_bfd_index (abfd
,
3912 src
->u
.syment
.n_scnum
);
3913 dst
->symbol
.flags
= 0;
3914 dst
->done_lineno
= false;
3916 switch (src
->u
.syment
.n_sclass
)
3921 dst
->symbol
.value
= src
->u
.syment
.n_value
- dst
->symbol
.section
->vma
;
3922 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
3923 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
3925 /* Fall through to next case */
3933 case C_THUMBEXTFUNC
:
3939 case C_SYSTEM
: /* System Wide variable */
3942 /* In PE, 0x68 (104) denotes a section symbol */
3944 /* In PE, 0x69 (105) denotes a weak external symbol. */
3947 switch (coff_classify_symbol (abfd
, &src
->u
.syment
))
3949 case COFF_SYMBOL_GLOBAL
:
3950 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
3951 #if defined COFF_WITH_PE
3952 /* PE sets the symbol to a value relative to the
3953 start of the section. */
3954 dst
->symbol
.value
= src
->u
.syment
.n_value
;
3956 dst
->symbol
.value
= (src
->u
.syment
.n_value
3957 - dst
->symbol
.section
->vma
);
3959 if (ISFCN ((src
->u
.syment
.n_type
)))
3961 /* A function ext does not go at the end of a
3963 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
3967 case COFF_SYMBOL_COMMON
:
3968 dst
->symbol
.section
= bfd_com_section_ptr
;
3969 dst
->symbol
.value
= src
->u
.syment
.n_value
;
3972 case COFF_SYMBOL_UNDEFINED
:
3973 dst
->symbol
.section
= bfd_und_section_ptr
;
3974 dst
->symbol
.value
= 0;
3977 case COFF_SYMBOL_PE_SECTION
:
3978 dst
->symbol
.flags
|= BSF_EXPORT
| BSF_SECTION_SYM
;
3979 dst
->symbol
.value
= 0;
3982 case COFF_SYMBOL_LOCAL
:
3983 dst
->symbol
.flags
= BSF_LOCAL
;
3984 #if defined COFF_WITH_PE
3985 /* PE sets the symbol to a value relative to the
3986 start of the section. */
3987 dst
->symbol
.value
= src
->u
.syment
.n_value
;
3989 dst
->symbol
.value
= (src
->u
.syment
.n_value
3990 - dst
->symbol
.section
->vma
);
3992 if (ISFCN ((src
->u
.syment
.n_type
)))
3993 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
3998 /* A symbol with a csect entry should not go at the end. */
3999 if (src
->u
.syment
.n_numaux
> 0)
4000 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
4004 if (src
->u
.syment
.n_sclass
== C_NT_WEAK
)
4005 dst
->symbol
.flags
= BSF_WEAK
;
4006 if (src
->u
.syment
.n_sclass
== C_SECTION
4007 && src
->u
.syment
.n_scnum
> 0)
4009 dst
->symbol
.flags
= BSF_LOCAL
;
4013 if (src
->u
.syment
.n_sclass
== C_WEAKEXT
)
4014 dst
->symbol
.flags
= BSF_WEAK
;
4018 case C_STAT
: /* static */
4020 case C_LEAFSTAT
: /* static leaf procedure */
4023 case C_THUMBSTAT
: /* Thumb static */
4024 case C_THUMBLABEL
: /* Thumb label */
4025 case C_THUMBSTATFUNC
:/* Thumb static function */
4027 case C_LABEL
: /* label */
4028 if (src
->u
.syment
.n_scnum
== N_DEBUG
)
4029 dst
->symbol
.flags
= BSF_DEBUGGING
;
4031 dst
->symbol
.flags
= BSF_LOCAL
;
4033 /* Base the value as an index from the base of the
4034 section, if there is one. */
4035 if (dst
->symbol
.section
)
4037 #if defined COFF_WITH_PE
4038 /* PE sets the symbol to a value relative to the
4039 start of the section. */
4040 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4042 dst
->symbol
.value
= (src
->u
.syment
.n_value
4043 - dst
->symbol
.section
->vma
);
4047 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4050 case C_MOS
: /* member of structure */
4051 case C_EOS
: /* end of structure */
4052 #ifdef NOTDEF /* C_AUTOARG has the same value */
4054 case C_GLBLREG
: /* A29k-specific storage class */
4057 case C_REGPARM
: /* register parameter */
4058 case C_REG
: /* register variable */
4061 case C_AUTOARG
: /* 960-specific storage class */
4064 case C_TPDEF
: /* type definition */
4066 case C_AUTO
: /* automatic variable */
4067 case C_FIELD
: /* bit field */
4068 case C_ENTAG
: /* enumeration tag */
4069 case C_MOE
: /* member of enumeration */
4070 case C_MOU
: /* member of union */
4071 case C_UNTAG
: /* union tag */
4072 dst
->symbol
.flags
= BSF_DEBUGGING
;
4073 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4076 case C_FILE
: /* file name */
4077 case C_STRTAG
: /* structure tag */
4092 dst
->symbol
.flags
= BSF_DEBUGGING
;
4093 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4097 case C_BINCL
: /* beginning of include file */
4098 case C_EINCL
: /* ending of include file */
4099 /* The value is actually a pointer into the line numbers
4100 of the file. We locate the line number entry, and
4101 set the section to the section which contains it, and
4102 the value to the index in that section. */
4106 dst
->symbol
.flags
= BSF_DEBUGGING
;
4107 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
4108 if (sec
->line_filepos
<= (file_ptr
) src
->u
.syment
.n_value
4109 && ((file_ptr
) (sec
->line_filepos
4110 + sec
->lineno_count
* LINESZ
)
4111 > (file_ptr
) src
->u
.syment
.n_value
))
4114 dst
->symbol
.value
= 0;
4117 dst
->symbol
.section
= sec
;
4118 dst
->symbol
.value
= ((src
->u
.syment
.n_value
4119 - sec
->line_filepos
)
4127 dst
->symbol
.flags
= BSF_DEBUGGING
;
4129 /* The value is actually a symbol index. Save a pointer
4130 to the symbol instead of the index. FIXME: This
4131 should use a union. */
4132 src
->u
.syment
.n_value
=
4133 (long) (native_symbols
+ src
->u
.syment
.n_value
);
4134 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4139 case C_BLOCK
: /* ".bb" or ".eb" */
4140 case C_FCN
: /* ".bf" or ".ef" */
4141 case C_EFCN
: /* physical end of function */
4142 dst
->symbol
.flags
= BSF_LOCAL
;
4143 #if defined COFF_WITH_PE
4144 /* PE sets the symbol to a value relative to the start
4146 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4148 /* Base the value as an index from the base of the
4150 dst
->symbol
.value
= (src
->u
.syment
.n_value
4151 - dst
->symbol
.section
->vma
);
4156 /* PE DLLs sometimes have zeroed out symbols for some
4157 reason. Just ignore them without a warning. */
4158 if (src
->u
.syment
.n_type
== 0
4159 && src
->u
.syment
.n_value
== 0
4160 && src
->u
.syment
.n_scnum
== 0)
4163 case C_EXTDEF
: /* external definition */
4164 case C_ULABEL
: /* undefined label */
4165 case C_USTATIC
: /* undefined static */
4166 #ifndef COFF_WITH_PE
4167 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4168 class to represent a section symbol */
4169 case C_LINE
: /* line # reformatted as symbol table entry */
4170 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4171 case C_ALIAS
: /* duplicate tag */
4173 /* New storage classes for TIc80 */
4175 case C_UEXT
: /* Tentative external definition */
4177 case C_STATLAB
: /* Static load time label */
4178 case C_EXTLAB
: /* External load time label */
4179 case C_HIDDEN
: /* ext symbol in dmert public lib */
4181 (*_bfd_error_handler
)
4182 (_("%s: Unrecognized storage class %d for %s symbol `%s'"),
4183 bfd_get_filename (abfd
), src
->u
.syment
.n_sclass
,
4184 dst
->symbol
.section
->name
, dst
->symbol
.name
);
4185 dst
->symbol
.flags
= BSF_DEBUGGING
;
4186 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4190 /* BFD_ASSERT(dst->symbol.flags != 0);*/
4194 dst
->symbol
.udata
.i
= 0;
4195 dst
->lineno
= (alent
*) NULL
;
4196 this_index
+= (src
->u
.syment
.n_numaux
) + 1;
4198 number_of_symbols
++;
4199 } /* walk the native symtab */
4200 } /* bfdize the native symtab */
4202 obj_symbols (abfd
) = cached_area
;
4203 obj_raw_syments (abfd
) = native_symbols
;
4205 bfd_get_symcount (abfd
) = number_of_symbols
;
4206 obj_convert (abfd
) = table_ptr
;
4207 /* Slurp the line tables for each section too */
4213 coff_slurp_line_table (abfd
, p
);
4218 } /* coff_slurp_symbol_table() */
4220 /* Classify a COFF symbol. A couple of targets have globally visible
4221 symbols which are not class C_EXT, and this handles those. It also
4222 recognizes some special PE cases. */
4224 static enum coff_symbol_classification
4225 coff_classify_symbol (abfd
, syment
)
4227 struct internal_syment
*syment
;
4229 /* FIXME: This partially duplicates the switch in
4230 coff_slurp_symbol_table. */
4231 switch (syment
->n_sclass
)
4240 case C_THUMBEXTFUNC
:
4248 if (syment
->n_scnum
== 0)
4250 if (syment
->n_value
== 0)
4251 return COFF_SYMBOL_UNDEFINED
;
4253 return COFF_SYMBOL_COMMON
;
4255 return COFF_SYMBOL_GLOBAL
;
4262 if (syment
->n_sclass
== C_STAT
)
4264 if (syment
->n_scnum
== 0)
4266 /* The Microsoft compiler sometimes generates these if a
4267 small static function is inlined every time it is used.
4268 The function is discarded, but the symbol table entry
4270 return COFF_SYMBOL_LOCAL
;
4274 /* This is correct for Microsoft generated objects, but it
4275 breaks gas generated objects. */
4277 if (syment
->n_value
== 0)
4280 char buf
[SYMNMLEN
+ 1];
4282 sec
= coff_section_from_bfd_index (abfd
, syment
->n_scnum
);
4284 && (strcmp (bfd_get_section_name (abfd
, sec
),
4285 _bfd_coff_internal_syment_name (abfd
, syment
, buf
))
4287 return COFF_SYMBOL_PE_SECTION
;
4291 return COFF_SYMBOL_LOCAL
;
4294 if (syment
->n_sclass
== C_SECTION
)
4296 /* In some cases in a DLL generated by the Microsoft linker, the
4297 n_value field will contain garbage. FIXME: This should
4298 probably be handled by the swapping function instead. */
4299 syment
->n_value
= 0;
4300 if (syment
->n_scnum
== 0)
4301 return COFF_SYMBOL_UNDEFINED
;
4302 return COFF_SYMBOL_PE_SECTION
;
4304 #endif /* COFF_WITH_PE */
4306 /* If it is not a global symbol, we presume it is a local symbol. */
4308 if (syment
->n_scnum
== 0)
4310 char buf
[SYMNMLEN
+ 1];
4312 (*_bfd_error_handler
)
4313 (_("warning: %s: local symbol `%s' has no section"),
4314 bfd_get_filename (abfd
),
4315 _bfd_coff_internal_syment_name (abfd
, syment
, buf
));
4318 return COFF_SYMBOL_LOCAL
;
4325 Coff relocations are easily transformed into the internal BFD form
4328 Reading a coff relocation table is done in the following stages:
4330 o Read the entire coff relocation table into memory.
4332 o Process each relocation in turn; first swap it from the
4333 external to the internal form.
4335 o Turn the symbol referenced in the relocation's symbol index
4336 into a pointer into the canonical symbol table.
4337 This table is the same as the one returned by a call to
4338 @code{bfd_canonicalize_symtab}. The back end will call that
4339 routine and save the result if a canonicalization hasn't been done.
4341 o The reloc index is turned into a pointer to a howto
4342 structure, in a back end specific way. For instance, the 386
4343 and 960 use the @code{r_type} to directly produce an index
4344 into a howto table vector; the 88k subtracts a number from the
4345 @code{r_type} field and creates an addend field.
4351 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
4353 coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \
4354 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
4355 coffsym = (obj_symbols (abfd) \
4356 + (cache_ptr->sym_ptr_ptr - symbols)); \
4358 coffsym = coff_symbol_from (abfd, ptr); \
4359 if (coffsym != (coff_symbol_type *) NULL \
4360 && coffsym->native->u.syment.n_scnum == 0) \
4361 cache_ptr->addend = 0; \
4362 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
4363 && ptr->section != (asection *) NULL) \
4364 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
4366 cache_ptr->addend = 0; \
4371 coff_slurp_reloc_table (abfd
, asect
, symbols
)
4376 RELOC
*native_relocs
;
4377 arelent
*reloc_cache
;
4382 if (asect
->relocation
)
4384 if (asect
->reloc_count
== 0)
4386 if (asect
->flags
& SEC_CONSTRUCTOR
)
4388 if (!coff_slurp_symbol_table (abfd
))
4391 (RELOC
*) buy_and_read (abfd
,
4395 asect
->reloc_count
));
4396 reloc_cache
= (arelent
*)
4397 bfd_alloc (abfd
, (size_t) (asect
->reloc_count
* sizeof (arelent
)));
4399 if (reloc_cache
== NULL
)
4403 for (idx
= 0; idx
< asect
->reloc_count
; idx
++)
4405 struct internal_reloc dst
;
4406 struct external_reloc
*src
;
4407 #ifndef RELOC_PROCESSING
4411 cache_ptr
= reloc_cache
+ idx
;
4412 src
= native_relocs
+ idx
;
4414 coff_swap_reloc_in (abfd
, src
, &dst
);
4416 #ifdef RELOC_PROCESSING
4417 RELOC_PROCESSING (cache_ptr
, &dst
, symbols
, abfd
, asect
);
4419 cache_ptr
->address
= dst
.r_vaddr
;
4421 if (dst
.r_symndx
!= -1)
4423 if (dst
.r_symndx
< 0 || dst
.r_symndx
>= obj_conv_table_size (abfd
))
4425 (*_bfd_error_handler
)
4426 (_("%s: warning: illegal symbol index %ld in relocs"),
4427 bfd_get_filename (abfd
), dst
.r_symndx
);
4428 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
4433 cache_ptr
->sym_ptr_ptr
= (symbols
4434 + obj_convert (abfd
)[dst
.r_symndx
]);
4435 ptr
= *(cache_ptr
->sym_ptr_ptr
);
4440 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
4444 /* The symbols definitions that we have read in have been
4445 relocated as if their sections started at 0. But the offsets
4446 refering to the symbols in the raw data have not been
4447 modified, so we have to have a negative addend to compensate.
4449 Note that symbols which used to be common must be left alone */
4451 /* Calculate any reloc addend by looking at the symbol */
4452 CALC_ADDEND (abfd
, ptr
, dst
, cache_ptr
);
4454 cache_ptr
->address
-= asect
->vma
;
4455 /* !! cache_ptr->section = (asection *) NULL;*/
4457 /* Fill in the cache_ptr->howto field from dst.r_type */
4458 RTYPE2HOWTO (cache_ptr
, &dst
);
4459 #endif /* RELOC_PROCESSING */
4461 if (cache_ptr
->howto
== NULL
)
4463 (*_bfd_error_handler
)
4464 (_("%s: illegal relocation type %d at address 0x%lx"),
4465 bfd_get_filename (abfd
), dst
.r_type
, (long) dst
.r_vaddr
);
4466 bfd_set_error (bfd_error_bad_value
);
4471 asect
->relocation
= reloc_cache
;
4475 #ifndef coff_rtype_to_howto
4478 /* Get the howto structure for a reloc. This is only used if the file
4479 including this one defines coff_relocate_section to be
4480 _bfd_coff_generic_relocate_section, so it is OK if it does not
4481 always work. It is the responsibility of the including file to
4482 make sure it is reasonable if it is needed. */
4484 static reloc_howto_type
*coff_rtype_to_howto
4485 PARAMS ((bfd
*, asection
*, struct internal_reloc
*,
4486 struct coff_link_hash_entry
*, struct internal_syment
*,
4490 static reloc_howto_type
*
4491 coff_rtype_to_howto (abfd
, sec
, rel
, h
, sym
, addendp
)
4492 bfd
*abfd ATTRIBUTE_UNUSED
;
4493 asection
*sec ATTRIBUTE_UNUSED
;
4494 struct internal_reloc
*rel
;
4495 struct coff_link_hash_entry
*h ATTRIBUTE_UNUSED
;
4496 struct internal_syment
*sym ATTRIBUTE_UNUSED
;
4497 bfd_vma
*addendp ATTRIBUTE_UNUSED
;
4501 RTYPE2HOWTO (&genrel
, rel
);
4502 return genrel
.howto
;
4505 #else /* ! defined (RTYPE2HOWTO) */
4507 #define coff_rtype_to_howto NULL
4509 #endif /* ! defined (RTYPE2HOWTO) */
4510 #endif /* ! defined (coff_rtype_to_howto) */
4512 /* This is stupid. This function should be a boolean predicate. */
4514 coff_canonicalize_reloc (abfd
, section
, relptr
, symbols
)
4520 arelent
*tblptr
= section
->relocation
;
4521 unsigned int count
= 0;
4524 if (section
->flags
& SEC_CONSTRUCTOR
)
4526 /* this section has relocs made up by us, they are not in the
4527 file, so take them out of their chain and place them into
4528 the data area provided */
4529 arelent_chain
*chain
= section
->constructor_chain
;
4530 for (count
= 0; count
< section
->reloc_count
; count
++)
4532 *relptr
++ = &chain
->relent
;
4533 chain
= chain
->next
;
4539 if (! coff_slurp_reloc_table (abfd
, section
, symbols
))
4542 tblptr
= section
->relocation
;
4544 for (; count
++ < section
->reloc_count
;)
4545 *relptr
++ = tblptr
++;
4550 return section
->reloc_count
;
4555 coff_sym_filepos (abfd
)
4558 return obj_sym_filepos (abfd
);
4562 #ifndef coff_reloc16_estimate
4563 #define coff_reloc16_estimate dummy_reloc16_estimate
4565 static int dummy_reloc16_estimate
4566 PARAMS ((bfd
*, asection
*, arelent
*, unsigned int,
4567 struct bfd_link_info
*));
4570 dummy_reloc16_estimate (abfd
, input_section
, reloc
, shrink
, link_info
)
4571 bfd
*abfd ATTRIBUTE_UNUSED
;
4572 asection
*input_section ATTRIBUTE_UNUSED
;
4573 arelent
*reloc ATTRIBUTE_UNUSED
;
4574 unsigned int shrink ATTRIBUTE_UNUSED
;
4575 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
;
4583 #ifndef coff_reloc16_extra_cases
4585 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
4587 /* This works even if abort is not declared in any header file. */
4589 static void dummy_reloc16_extra_cases
4590 PARAMS ((bfd
*, struct bfd_link_info
*, struct bfd_link_order
*, arelent
*,
4591 bfd_byte
*, unsigned int *, unsigned int *));
4594 dummy_reloc16_extra_cases (abfd
, link_info
, link_order
, reloc
, data
, src_ptr
,
4596 bfd
*abfd ATTRIBUTE_UNUSED
;
4597 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
;
4598 struct bfd_link_order
*link_order ATTRIBUTE_UNUSED
;
4599 arelent
*reloc ATTRIBUTE_UNUSED
;
4600 bfd_byte
*data ATTRIBUTE_UNUSED
;
4601 unsigned int *src_ptr ATTRIBUTE_UNUSED
;
4602 unsigned int *dst_ptr ATTRIBUTE_UNUSED
;
4608 /* If coff_relocate_section is defined, we can use the optimized COFF
4609 backend linker. Otherwise we must continue to use the old linker. */
4610 #ifdef coff_relocate_section
4611 #ifndef coff_bfd_link_hash_table_create
4612 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
4614 #ifndef coff_bfd_link_add_symbols
4615 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
4617 #ifndef coff_bfd_final_link
4618 #define coff_bfd_final_link _bfd_coff_final_link
4620 #else /* ! defined (coff_relocate_section) */
4621 #define coff_relocate_section NULL
4622 #ifndef coff_bfd_link_hash_table_create
4623 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
4625 #ifndef coff_bfd_link_add_symbols
4626 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
4628 #define coff_bfd_final_link _bfd_generic_final_link
4629 #endif /* ! defined (coff_relocate_section) */
4631 #define coff_bfd_link_split_section _bfd_generic_link_split_section
4633 #ifndef coff_start_final_link
4634 #define coff_start_final_link NULL
4637 #ifndef coff_adjust_symndx
4638 #define coff_adjust_symndx NULL
4641 #ifndef coff_link_add_one_symbol
4642 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
4645 #ifndef coff_link_output_has_begun
4647 static boolean coff_link_output_has_begun
4648 PARAMS ((bfd
*, struct coff_final_link_info
*));
4651 coff_link_output_has_begun (abfd
, info
)
4653 struct coff_final_link_info
* info ATTRIBUTE_UNUSED
;
4655 return abfd
->output_has_begun
;
4659 #ifndef coff_final_link_postscript
4661 static boolean coff_final_link_postscript
4662 PARAMS ((bfd
*, struct coff_final_link_info
*));
4665 coff_final_link_postscript (abfd
, pfinfo
)
4666 bfd
* abfd ATTRIBUTE_UNUSED
;
4667 struct coff_final_link_info
* pfinfo ATTRIBUTE_UNUSED
;
4673 #ifndef coff_SWAP_aux_in
4674 #define coff_SWAP_aux_in coff_swap_aux_in
4676 #ifndef coff_SWAP_sym_in
4677 #define coff_SWAP_sym_in coff_swap_sym_in
4679 #ifndef coff_SWAP_lineno_in
4680 #define coff_SWAP_lineno_in coff_swap_lineno_in
4682 #ifndef coff_SWAP_aux_out
4683 #define coff_SWAP_aux_out coff_swap_aux_out
4685 #ifndef coff_SWAP_sym_out
4686 #define coff_SWAP_sym_out coff_swap_sym_out
4688 #ifndef coff_SWAP_lineno_out
4689 #define coff_SWAP_lineno_out coff_swap_lineno_out
4691 #ifndef coff_SWAP_reloc_out
4692 #define coff_SWAP_reloc_out coff_swap_reloc_out
4694 #ifndef coff_SWAP_filehdr_out
4695 #define coff_SWAP_filehdr_out coff_swap_filehdr_out
4697 #ifndef coff_SWAP_aouthdr_out
4698 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
4700 #ifndef coff_SWAP_scnhdr_out
4701 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
4703 #ifndef coff_SWAP_reloc_in
4704 #define coff_SWAP_reloc_in coff_swap_reloc_in
4706 #ifndef coff_SWAP_filehdr_in
4707 #define coff_SWAP_filehdr_in coff_swap_filehdr_in
4709 #ifndef coff_SWAP_aouthdr_in
4710 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
4712 #ifndef coff_SWAP_scnhdr_in
4713 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
4718 static CONST bfd_coff_backend_data bfd_coff_std_swap_table
=
4720 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
4721 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
4722 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
4723 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
4724 coff_SWAP_scnhdr_out
,
4725 FILHSZ
, AOUTSZ
, SCNHSZ
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
,
4726 #ifdef COFF_LONG_FILENAMES
4731 #ifdef COFF_LONG_SECTION_NAMES
4736 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
4737 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
4738 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
4739 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
4740 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
4741 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
4742 coff_classify_symbol
, coff_compute_section_file_positions
,
4743 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
4744 coff_adjust_symndx
, coff_link_add_one_symbol
,
4745 coff_link_output_has_begun
, coff_final_link_postscript
4748 #ifndef coff_close_and_cleanup
4749 #define coff_close_and_cleanup _bfd_generic_close_and_cleanup
4752 #ifndef coff_bfd_free_cached_info
4753 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
4756 #ifndef coff_get_section_contents
4757 #define coff_get_section_contents _bfd_generic_get_section_contents
4760 #ifndef coff_bfd_copy_private_symbol_data
4761 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
4764 #ifndef coff_bfd_copy_private_section_data
4765 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
4768 #ifndef coff_bfd_copy_private_bfd_data
4769 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
4772 #ifndef coff_bfd_merge_private_bfd_data
4773 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
4776 #ifndef coff_bfd_set_private_flags
4777 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
4780 #ifndef coff_bfd_print_private_bfd_data
4781 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
4784 #ifndef coff_bfd_is_local_label_name
4785 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
4788 #ifndef coff_read_minisymbols
4789 #define coff_read_minisymbols _bfd_generic_read_minisymbols
4792 #ifndef coff_minisymbol_to_symbol
4793 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
4796 /* The reloc lookup routine must be supplied by each individual COFF
4798 #ifndef coff_bfd_reloc_type_lookup
4799 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
4802 #ifndef coff_bfd_get_relocated_section_contents
4803 #define coff_bfd_get_relocated_section_contents \
4804 bfd_generic_get_relocated_section_contents
4807 #ifndef coff_bfd_relax_section
4808 #define coff_bfd_relax_section bfd_generic_relax_section
4811 #ifndef coff_bfd_gc_sections
4812 #define coff_bfd_gc_sections bfd_generic_gc_sections
4815 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE) \
4816 const bfd_target VAR = \
4819 bfd_target_coff_flavour, \
4820 BFD_ENDIAN_BIG, /* data byte order is big */ \
4821 BFD_ENDIAN_BIG, /* header byte order is big */ \
4822 /* object flags */ \
4823 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
4824 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
4825 /* section flags */ \
4826 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
4827 UNDER, /* leading symbol underscore */ \
4828 '/', /* ar_pad_char */ \
4829 15, /* ar_max_namelen */ \
4831 /* Data conversion functions. */ \
4832 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
4833 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
4834 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
4836 /* Header conversion functions. */ \
4837 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
4838 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
4839 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
4841 /* bfd_check_format */ \
4842 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
4843 _bfd_dummy_target }, \
4844 /* bfd_set_format */ \
4845 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
4846 /* bfd_write_contents */ \
4847 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
4850 BFD_JUMP_TABLE_GENERIC (coff), \
4851 BFD_JUMP_TABLE_COPY (coff), \
4852 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
4853 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
4854 BFD_JUMP_TABLE_SYMBOLS (coff), \
4855 BFD_JUMP_TABLE_RELOCS (coff), \
4856 BFD_JUMP_TABLE_WRITE (coff), \
4857 BFD_JUMP_TABLE_LINK (coff), \
4858 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
4865 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE) \
4866 const bfd_target VAR = \
4869 bfd_target_coff_flavour, \
4870 BFD_ENDIAN_LITTLE, /* data byte order is little */ \
4871 BFD_ENDIAN_LITTLE, /* header byte order is little */ \
4872 /* object flags */ \
4873 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
4874 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
4875 /* section flags */ \
4876 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
4877 UNDER, /* leading symbol underscore */ \
4878 '/', /* ar_pad_char */ \
4879 15, /* ar_max_namelen */ \
4881 /* Data conversion functions. */ \
4882 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
4883 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
4884 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
4885 /* Header conversion functions. */ \
4886 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
4887 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
4888 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
4889 /* bfd_check_format */ \
4890 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
4891 _bfd_dummy_target }, \
4892 /* bfd_set_format */ \
4893 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
4894 /* bfd_write_contents */ \
4895 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
4898 BFD_JUMP_TABLE_GENERIC (coff), \
4899 BFD_JUMP_TABLE_COPY (coff), \
4900 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
4901 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
4902 BFD_JUMP_TABLE_SYMBOLS (coff), \
4903 BFD_JUMP_TABLE_RELOCS (coff), \
4904 BFD_JUMP_TABLE_WRITE (coff), \
4905 BFD_JUMP_TABLE_LINK (coff), \
4906 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \