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
;
765 esymstart
= esym
= (bfd_byte
*) obj_coff_external_syms (abfd
);
766 esymend
= esym
+ obj_raw_syment_count (abfd
) * bfd_coff_symesz (abfd
);
768 while (esym
< esymend
)
770 struct internal_syment isym
;
771 char buf
[SYMNMLEN
+ 1];
774 bfd_coff_swap_sym_in (abfd
, (PTR
) esym
, (PTR
) &isym
);
776 if (sizeof (internal_s
->s_name
) > SYMNMLEN
)
778 /* This case implies that the matching symbol name
779 will be in the string table. */
783 if (isym
.n_scnum
== section
->target_index
)
785 /* According to the MSVC documentation, the first
786 TWO entries with the section # are both of
787 interest to us. The first one is the "section
788 symbol" (section name). The second is the comdat
789 symbol name. Here, we've found the first
790 qualifying entry; we distinguish it from the
791 second with a state flag.
793 In the case of gas-generated (at least until that
794 is fixed) .o files, it isn't necessarily the
795 second one. It may be some other later symbol.
797 Since gas also doesn't follow MS conventions and
798 emits the section similar to .text$<name>, where
799 <something> is the name we're looking for, we
800 distinguish the two as follows:
802 If the section name is simply a section name (no
803 $) we presume it's MS-generated, and look at
804 precisely the second symbol for the comdat name.
805 If the section name has a $, we assume it's
806 gas-generated, and look for <something> (whatever
807 follows the $) as the comdat symbol. */
809 /* All 3 branches use this */
810 symname
= _bfd_coff_internal_syment_name (abfd
, &isym
, buf
);
819 /* The first time we've seen the symbol. */
820 union internal_auxent aux
;
824 /* If it isn't the stuff we're expecting, die;
825 The MS documentation is vague, but it
826 appears that the second entry serves BOTH
827 as the comdat symbol and the defining
828 symbol record (either C_STAT or C_EXT,
829 possibly with an aux entry with debug
830 information if it's a function.) It
831 appears the only way to find the second one
832 is to count. (On Intel, they appear to be
833 adjacent, but on Alpha, they have been
836 Here, we think we've found the first one,
837 but there's some checking we can do to be
840 if (! (isym
.n_sclass
== C_STAT
841 && isym
.n_type
== T_NULL
842 && isym
.n_value
== 0))
845 /* FIXME LATER: MSVC generates section names
846 like .text for comdats. Gas generates
847 names like .text$foo__Fv (in the case of a
848 function). See comment above for more. */
850 if (strcmp (name
, symname
) != 0)
853 /* This is the section symbol. */
855 bfd_coff_swap_aux_in (abfd
, (PTR
) (esym
+ bfd_coff_symesz (abfd
)),
856 isym
.n_type
, isym
.n_sclass
,
857 0, isym
.n_numaux
, (PTR
) &aux
);
859 target_name
= strchr (name
, '$');
860 if (target_name
!= NULL
)
868 /* FIXME: Microsoft uses NODUPLICATES and
869 ASSOCIATIVE, but gnu uses ANY and
870 SAME_SIZE. Unfortunately, gnu doesn't do
871 the comdat symbols right. So, until we can
872 fix it to do the right thing, we are
873 temporarily disabling comdats for the MS
874 types (they're used in DLLs and C++, but we
875 don't support *their* C++ libraries anyway
878 /* Cygwin does not follow the MS style, and
879 uses ANY and SAME_SIZE where NODUPLICATES
880 and ASSOCIATIVE should be used. For
881 Interix, we just do the right thing up
884 switch (aux
.x_scn
.x_comdat
)
886 case IMAGE_COMDAT_SELECT_NODUPLICATES
:
887 #ifdef STRICT_PE_FORMAT
888 sec_flags
|= SEC_LINK_DUPLICATES_ONE_ONLY
;
890 sec_flags
&= ~SEC_LINK_ONCE
;
894 case IMAGE_COMDAT_SELECT_ANY
:
895 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
898 case IMAGE_COMDAT_SELECT_SAME_SIZE
:
899 sec_flags
|= SEC_LINK_DUPLICATES_SAME_SIZE
;
902 case IMAGE_COMDAT_SELECT_EXACT_MATCH
:
903 /* Not yet fully implemented ??? */
904 sec_flags
|= SEC_LINK_DUPLICATES_SAME_CONTENTS
;
907 /* debug$S gets this case; other
910 /* There may be no symbol... we'll search
911 the whole table... Is this the right
912 place to play this game? Or should we do
913 it when reading it in. */
914 case IMAGE_COMDAT_SELECT_ASSOCIATIVE
:
915 #ifdef STRICT_PE_FORMAT
916 /* FIXME: This is not currently implemented. */
917 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
919 sec_flags
&= ~SEC_LINK_ONCE
;
923 default: /* 0 means "no symbol" */
924 /* debug$F gets this case; other
926 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
933 /* Gas mode: the first matching on partial name. */
935 #ifndef TARGET_UNDERSCORE
936 #define TARGET_UNDERSCORE 0
938 /* Is this the name we're looking for? */
939 if (strcmp (target_name
,
940 symname
+ (TARGET_UNDERSCORE
? 1 : 0)) != 0)
942 /* Not the name we're looking for */
943 esym
+= (isym
.n_numaux
+ 1) * bfd_coff_symesz (abfd
);
948 /* MSVC mode: the lexically second symbol (or
949 drop through from the above). */
953 /* This must the the second symbol with the
954 section #. It is the actual symbol name.
955 Intel puts the two adjacent, but Alpha (at
956 least) spreads them out. */
959 bfd_alloc (abfd
, sizeof (struct bfd_comdat_info
));
960 if (section
->comdat
== NULL
)
962 section
->comdat
->symbol
=
963 (esym
- esymstart
) / bfd_coff_symesz (abfd
);
965 newname
= bfd_alloc (abfd
, strlen (symname
) + 1);
969 strcpy (newname
, symname
);
970 section
->comdat
->name
= newname
;
978 esym
+= (isym
.n_numaux
+ 1) * bfd_coff_symesz (abfd
);
984 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
985 /* As a GNU extension, if the name begins with .gnu.linkonce, we
986 only link a single copy of the section. This is used to support
987 g++. g++ will emit each template expansion in its own section.
988 The symbols will be defined as weak, so that multiple definitions
989 are permitted. The GNU linker extension is to actually discard
990 all but one of the sections. */
991 if (strncmp (name
, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0)
992 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
998 #endif /* COFF_WITH_PE */
1000 #define get_index(symbol) ((symbol)->udata.i)
1004 bfd_coff_backend_data
1008 .{* COFF symbol classifications. *}
1010 .enum coff_symbol_classification
1012 . {* Global symbol. *}
1013 . COFF_SYMBOL_GLOBAL,
1014 . {* Common symbol. *}
1015 . COFF_SYMBOL_COMMON,
1016 . {* Undefined symbol. *}
1017 . COFF_SYMBOL_UNDEFINED,
1018 . {* Local symbol. *}
1019 . COFF_SYMBOL_LOCAL,
1020 . {* PE section symbol. *}
1021 . COFF_SYMBOL_PE_SECTION
1024 Special entry points for gdb to swap in coff symbol table parts:
1027 . void (*_bfd_coff_swap_aux_in) PARAMS ((
1036 . void (*_bfd_coff_swap_sym_in) PARAMS ((
1041 . void (*_bfd_coff_swap_lineno_in) PARAMS ((
1047 Special entry points for gas to swap out coff parts:
1049 . unsigned int (*_bfd_coff_swap_aux_out) PARAMS ((
1058 . unsigned int (*_bfd_coff_swap_sym_out) PARAMS ((
1063 . unsigned int (*_bfd_coff_swap_lineno_out) PARAMS ((
1068 . unsigned int (*_bfd_coff_swap_reloc_out) PARAMS ((
1073 . unsigned int (*_bfd_coff_swap_filehdr_out) PARAMS ((
1078 . unsigned int (*_bfd_coff_swap_aouthdr_out) PARAMS ((
1083 . unsigned int (*_bfd_coff_swap_scnhdr_out) PARAMS ((
1089 Special entry points for generic COFF routines to call target
1090 dependent COFF routines:
1092 . unsigned int _bfd_filhsz;
1093 . unsigned int _bfd_aoutsz;
1094 . unsigned int _bfd_scnhsz;
1095 . unsigned int _bfd_symesz;
1096 . unsigned int _bfd_auxesz;
1097 . unsigned int _bfd_relsz;
1098 . unsigned int _bfd_linesz;
1099 . unsigned int _bfd_filnmlen;
1100 . boolean _bfd_coff_long_filenames;
1101 . boolean _bfd_coff_long_section_names;
1102 . unsigned int _bfd_coff_default_section_alignment_power;
1103 . void (*_bfd_coff_swap_filehdr_in) PARAMS ((
1107 . void (*_bfd_coff_swap_aouthdr_in) PARAMS ((
1111 . void (*_bfd_coff_swap_scnhdr_in) PARAMS ((
1115 . void (*_bfd_coff_swap_reloc_in) PARAMS ((
1119 . boolean (*_bfd_coff_bad_format_hook) PARAMS ((
1121 . PTR internal_filehdr));
1122 . boolean (*_bfd_coff_set_arch_mach_hook) PARAMS ((
1124 . PTR internal_filehdr));
1125 . PTR (*_bfd_coff_mkobject_hook) PARAMS ((
1127 . PTR internal_filehdr,
1128 . PTR internal_aouthdr));
1129 . flagword (*_bfd_styp_to_sec_flags_hook) PARAMS ((
1131 . PTR internal_scnhdr,
1133 . asection *section));
1134 . void (*_bfd_set_alignment_hook) PARAMS ((
1137 . PTR internal_scnhdr));
1138 . boolean (*_bfd_coff_slurp_symbol_table) PARAMS ((
1140 . boolean (*_bfd_coff_symname_in_debug) PARAMS ((
1142 . struct internal_syment *sym));
1143 . boolean (*_bfd_coff_pointerize_aux_hook) PARAMS ((
1145 . combined_entry_type *table_base,
1146 . combined_entry_type *symbol,
1147 . unsigned int indaux,
1148 . combined_entry_type *aux));
1149 . boolean (*_bfd_coff_print_aux) PARAMS ((
1152 . combined_entry_type *table_base,
1153 . combined_entry_type *symbol,
1154 . combined_entry_type *aux,
1155 . unsigned int indaux));
1156 . void (*_bfd_coff_reloc16_extra_cases) PARAMS ((
1158 . struct bfd_link_info *link_info,
1159 . struct bfd_link_order *link_order,
1162 . unsigned int *src_ptr,
1163 . unsigned int *dst_ptr));
1164 . int (*_bfd_coff_reloc16_estimate) PARAMS ((
1166 . asection *input_section,
1168 . unsigned int shrink,
1169 . struct bfd_link_info *link_info));
1170 . enum coff_symbol_classification (*_bfd_coff_classify_symbol) PARAMS ((
1172 . struct internal_syment *));
1173 . boolean (*_bfd_coff_compute_section_file_positions) PARAMS ((
1175 . boolean (*_bfd_coff_start_final_link) PARAMS ((
1177 . struct bfd_link_info *info));
1178 . boolean (*_bfd_coff_relocate_section) PARAMS ((
1180 . struct bfd_link_info *info,
1182 . asection *input_section,
1183 . bfd_byte *contents,
1184 . struct internal_reloc *relocs,
1185 . struct internal_syment *syms,
1186 . asection **sections));
1187 . reloc_howto_type *(*_bfd_coff_rtype_to_howto) PARAMS ((
1190 . struct internal_reloc *rel,
1191 . struct coff_link_hash_entry *h,
1192 . struct internal_syment *sym,
1193 . bfd_vma *addendp));
1194 . boolean (*_bfd_coff_adjust_symndx) PARAMS ((
1196 . struct bfd_link_info *info,
1199 . struct internal_reloc *reloc,
1200 . boolean *adjustedp));
1201 . boolean (*_bfd_coff_link_add_one_symbol) PARAMS ((
1202 . struct bfd_link_info *info,
1206 . asection *section,
1208 . const char *string,
1211 . struct bfd_link_hash_entry **hashp));
1213 . boolean (*_bfd_coff_link_output_has_begun) PARAMS ((
1215 . struct coff_final_link_info * pfinfo));
1216 . boolean (*_bfd_coff_final_link_postscript) PARAMS ((
1218 . struct coff_final_link_info * pfinfo));
1220 .} bfd_coff_backend_data;
1222 .#define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
1224 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
1225 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
1227 .#define bfd_coff_swap_sym_in(a,e,i) \
1228 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
1230 .#define bfd_coff_swap_lineno_in(a,e,i) \
1231 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
1233 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
1234 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
1236 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
1237 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
1239 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
1240 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
1242 .#define bfd_coff_swap_sym_out(abfd, i,o) \
1243 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
1245 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
1246 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
1248 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
1249 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
1251 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
1252 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
1254 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1255 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1256 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1257 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1258 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1259 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1260 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
1261 .#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
1262 .#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames)
1263 .#define bfd_coff_long_section_names(abfd) \
1264 . (coff_backend_info (abfd)->_bfd_coff_long_section_names)
1265 .#define bfd_coff_default_section_alignment_power(abfd) \
1266 . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
1267 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
1268 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
1270 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
1271 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
1273 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
1274 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
1276 .#define bfd_coff_swap_reloc_in(abfd, i, o) \
1277 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
1279 .#define bfd_coff_bad_format_hook(abfd, filehdr) \
1280 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
1282 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
1283 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
1284 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
1285 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr))
1287 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section)\
1288 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1289 . (abfd, scnhdr, name, section))
1291 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
1292 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
1294 .#define bfd_coff_slurp_symbol_table(abfd)\
1295 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
1297 .#define bfd_coff_symname_in_debug(abfd, sym)\
1298 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
1300 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
1301 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1302 . (abfd, file, base, symbol, aux, indaux))
1304 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\
1305 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1306 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
1308 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
1309 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1310 . (abfd, section, reloc, shrink, link_info))
1312 .#define bfd_coff_classify_symbol(abfd, sym)\
1313 . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1316 .#define bfd_coff_compute_section_file_positions(abfd)\
1317 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1320 .#define bfd_coff_start_final_link(obfd, info)\
1321 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1323 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
1324 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1325 . (obfd, info, ibfd, o, con, rel, isyms, secs))
1326 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
1327 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1328 . (abfd, sec, rel, h, sym, addendp))
1329 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
1330 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1331 . (obfd, info, ibfd, sec, rel, adjustedp))
1332 .#define bfd_coff_link_add_one_symbol(info,abfd,name,flags,section,value,string,cp,coll,hashp)\
1333 . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1334 . (info, abfd, name, flags, section, value, string, cp, coll, hashp))
1336 .#define bfd_coff_link_output_has_begun(a,p) \
1337 . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a,p))
1338 .#define bfd_coff_final_link_postscript(a,p) \
1339 . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a,p))
1343 /* See whether the magic number matches. */
1346 coff_bad_format_hook (abfd
, filehdr
)
1347 bfd
* abfd ATTRIBUTE_UNUSED
;
1350 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1352 if (BADMAG (*internal_f
))
1355 /* if the optional header is NULL or not the correct size then
1356 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1357 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1358 optional header is of a different size.
1360 But the mips keeps extra stuff in it's opthdr, so dont check
1364 #if defined(M88) || defined(I960)
1365 if (internal_f
->f_opthdr
!= 0 && bfd_coff_aoutsz (abfd
) != internal_f
->f_opthdr
)
1372 /* Check whether this section uses an alignment other than the
1376 coff_set_custom_section_alignment (abfd
, section
, alignment_table
, table_size
)
1377 bfd
*abfd ATTRIBUTE_UNUSED
;
1379 const struct coff_section_alignment_entry
*alignment_table
;
1380 const unsigned int table_size
;
1382 const unsigned int default_alignment
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1385 for (i
= 0; i
< table_size
; ++i
)
1387 const char *secname
= bfd_get_section_name (abfd
, section
);
1388 if (alignment_table
[i
].comparison_length
== (unsigned int) -1
1389 ? strcmp (alignment_table
[i
].name
, secname
) == 0
1390 : strncmp (alignment_table
[i
].name
, secname
,
1391 alignment_table
[i
].comparison_length
) == 0)
1394 if (i
>= table_size
)
1397 if (alignment_table
[i
].default_alignment_min
!= COFF_ALIGNMENT_FIELD_EMPTY
1398 && default_alignment
< alignment_table
[i
].default_alignment_min
)
1401 if (alignment_table
[i
].default_alignment_max
!= COFF_ALIGNMENT_FIELD_EMPTY
1402 && default_alignment
> alignment_table
[i
].default_alignment_max
)
1405 section
->alignment_power
= alignment_table
[i
].alignment_power
;
1408 /* Custom section alignment records. */
1410 static const struct coff_section_alignment_entry
1411 coff_section_alignment_table
[] =
1413 #ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1414 COFF_SECTION_ALIGNMENT_ENTRIES
,
1416 /* There must not be any gaps between .stabstr sections. */
1417 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1418 1, COFF_ALIGNMENT_FIELD_EMPTY
, 0 },
1419 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1420 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1421 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1422 /* Similarly for the .ctors and .dtors sections. */
1423 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1424 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1425 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1426 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 }
1429 static const unsigned int coff_section_alignment_table_size
=
1430 sizeof coff_section_alignment_table
/ sizeof coff_section_alignment_table
[0];
1432 /* Initialize a section structure with information peculiar to this
1433 particular implementation of COFF. */
1436 coff_new_section_hook (abfd
, section
)
1440 combined_entry_type
*native
;
1442 section
->alignment_power
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1445 if (xcoff_data (abfd
)->text_align_power
!= 0
1446 && strcmp (bfd_get_section_name (abfd
, section
), ".text") == 0)
1447 section
->alignment_power
= xcoff_data (abfd
)->text_align_power
;
1448 if (xcoff_data (abfd
)->data_align_power
!= 0
1449 && strcmp (bfd_get_section_name (abfd
, section
), ".data") == 0)
1450 section
->alignment_power
= xcoff_data (abfd
)->data_align_power
;
1453 /* Allocate aux records for section symbols, to store size and
1456 @@ The 10 is a guess at a plausible maximum number of aux entries
1457 (but shouldn't be a constant). */
1458 native
= ((combined_entry_type
*)
1459 bfd_zalloc (abfd
, sizeof (combined_entry_type
) * 10));
1463 /* We don't need to set up n_name, n_value, or n_scnum in the native
1464 symbol information, since they'll be overriden by the BFD symbol
1465 anyhow. However, we do need to set the type and storage class,
1466 in case this symbol winds up getting written out. The value 0
1467 for n_numaux is already correct. */
1469 native
->u
.syment
.n_type
= T_NULL
;
1470 native
->u
.syment
.n_sclass
= C_STAT
;
1472 coffsymbol (section
->symbol
)->native
= native
;
1474 coff_set_custom_section_alignment (abfd
, section
,
1475 coff_section_alignment_table
,
1476 coff_section_alignment_table_size
);
1481 #ifdef COFF_ALIGN_IN_SECTION_HEADER
1483 /* Set the alignment of a BFD section. */
1485 static void coff_set_alignment_hook
PARAMS ((bfd
*, asection
*, PTR
));
1488 coff_set_alignment_hook (abfd
, section
, scnhdr
)
1489 bfd
* abfd ATTRIBUTE_UNUSED
;
1493 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1497 /* Extract ALIGN from 2**ALIGN stored in section header */
1498 for (i
= 0; i
< 32; i
++)
1499 if ((1 << i
) >= hdr
->s_align
)
1503 /* TI tools hijack bits 8-11 for the alignment */
1504 i
= (hdr
->s_flags
>> 8) & 0xF ;
1506 section
->alignment_power
= i
;
1509 #else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1512 /* a couple of macros to help setting the alignment power field */
1513 #define ALIGN_SET(field,x,y) \
1514 if (((field) & IMAGE_SCN_ALIGN_64BYTES) == x )\
1516 section->alignment_power = y;\
1519 #define ELIFALIGN_SET(field,x,y) \
1520 else if (( (field) & IMAGE_SCN_ALIGN_64BYTES) == x ) \
1522 section->alignment_power = y;\
1525 static void coff_set_alignment_hook
PARAMS ((bfd
*, asection
*, PTR
));
1528 coff_set_alignment_hook (abfd
, section
, scnhdr
)
1529 bfd
* abfd ATTRIBUTE_UNUSED
;
1533 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1535 ALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_64BYTES
, 6)
1536 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_32BYTES
, 5)
1537 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_16BYTES
, 4)
1538 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_8BYTES
, 3)
1539 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_4BYTES
, 2)
1540 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_2BYTES
, 1)
1541 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_1BYTES
, 0)
1543 /* In a PE image file, the s_paddr field holds the virtual size of a
1544 section, while the s_size field holds the raw size. We also keep
1545 the original section flag value, since not every bit can be
1546 mapped onto a generic BFD section bit. */
1547 if (coff_section_data (abfd
, section
) == NULL
)
1549 section
->used_by_bfd
=
1550 (PTR
) bfd_zalloc (abfd
, sizeof (struct coff_section_tdata
));
1551 if (section
->used_by_bfd
== NULL
)
1553 /* FIXME: Return error. */
1557 if (pei_section_data (abfd
, section
) == NULL
)
1559 coff_section_data (abfd
, section
)->tdata
=
1560 (PTR
) bfd_zalloc (abfd
, sizeof (struct pei_section_tdata
));
1561 if (coff_section_data (abfd
, section
)->tdata
== NULL
)
1563 /* FIXME: Return error. */
1567 pei_section_data (abfd
, section
)->virt_size
= hdr
->s_paddr
;
1568 pei_section_data (abfd
, section
)->pe_flags
= hdr
->s_flags
;
1570 section
->lma
= hdr
->s_vaddr
;
1573 #undef ELIFALIGN_SET
1575 #else /* ! COFF_WITH_PE */
1578 /* We grossly abuse this function to handle XCOFF overflow headers.
1579 When we see one, we correct the reloc and line number counts in the
1580 real header, and remove the section we just created. */
1582 static void coff_set_alignment_hook
PARAMS ((bfd
*, asection
*, PTR
));
1585 coff_set_alignment_hook (abfd
, section
, scnhdr
)
1590 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1594 if ((hdr
->s_flags
& STYP_OVRFLO
) == 0)
1597 real_sec
= coff_section_from_bfd_index (abfd
, hdr
->s_nreloc
);
1598 if (real_sec
== NULL
)
1601 real_sec
->reloc_count
= hdr
->s_paddr
;
1602 real_sec
->lineno_count
= hdr
->s_vaddr
;
1604 for (ps
= &abfd
->sections
; *ps
!= NULL
; ps
= &(*ps
)->next
)
1609 --abfd
->section_count
;
1615 #else /* ! RS6000COFF_C */
1617 #define coff_set_alignment_hook \
1618 ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void)
1620 #endif /* ! RS6000COFF_C */
1621 #endif /* ! COFF_WITH_PE */
1622 #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
1624 #ifndef coff_mkobject
1626 static boolean coff_mkobject
PARAMS ((bfd
*));
1629 coff_mkobject (abfd
)
1632 coff_data_type
*coff
;
1634 abfd
->tdata
.coff_obj_data
= (struct coff_tdata
*) bfd_zalloc (abfd
, sizeof (coff_data_type
));
1635 if (abfd
->tdata
.coff_obj_data
== 0)
1637 coff
= coff_data (abfd
);
1638 coff
->symbols
= (coff_symbol_type
*) NULL
;
1639 coff
->conversion_table
= (unsigned int *) NULL
;
1640 coff
->raw_syments
= (struct coff_ptr_struct
*) NULL
;
1641 coff
->relocbase
= 0;
1642 coff
->local_toc_sym_map
= 0;
1644 /* make_abs_section(abfd);*/
1650 /* Create the COFF backend specific information. */
1651 #ifndef coff_mkobject_hook
1653 coff_mkobject_hook (abfd
, filehdr
, aouthdr
)
1656 PTR aouthdr ATTRIBUTE_UNUSED
;
1658 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1659 coff_data_type
*coff
;
1661 if (coff_mkobject (abfd
) == false)
1664 coff
= coff_data (abfd
);
1666 coff
->sym_filepos
= internal_f
->f_symptr
;
1668 /* These members communicate important constants about the symbol
1669 table to GDB's symbol-reading code. These `constants'
1670 unfortunately vary among coff implementations... */
1671 coff
->local_n_btmask
= N_BTMASK
;
1672 coff
->local_n_btshft
= N_BTSHFT
;
1673 coff
->local_n_tmask
= N_TMASK
;
1674 coff
->local_n_tshift
= N_TSHIFT
;
1675 coff
->local_symesz
= bfd_coff_symesz (abfd
);
1676 coff
->local_auxesz
= bfd_coff_auxesz (abfd
);
1677 coff
->local_linesz
= bfd_coff_linesz (abfd
);
1679 coff
->timestamp
= internal_f
->f_timdat
;
1681 obj_raw_syment_count (abfd
) =
1682 obj_conv_table_size (abfd
) =
1683 internal_f
->f_nsyms
;
1686 if ((internal_f
->f_flags
& F_SHROBJ
) != 0)
1687 abfd
->flags
|= DYNAMIC
;
1688 if (aouthdr
!= NULL
&& internal_f
->f_opthdr
>= bfd_coff_aoutsz (abfd
))
1690 struct internal_aouthdr
*internal_a
=
1691 (struct internal_aouthdr
*) aouthdr
;
1692 struct xcoff_tdata
*xcoff
;
1694 xcoff
= xcoff_data (abfd
);
1695 xcoff
->full_aouthdr
= true;
1696 xcoff
->toc
= internal_a
->o_toc
;
1697 xcoff
->sntoc
= internal_a
->o_sntoc
;
1698 xcoff
->snentry
= internal_a
->o_snentry
;
1699 xcoff
->text_align_power
= internal_a
->o_algntext
;
1700 xcoff
->data_align_power
= internal_a
->o_algndata
;
1701 xcoff
->modtype
= internal_a
->o_modtype
;
1702 xcoff
->cputype
= internal_a
->o_cputype
;
1703 xcoff
->maxdata
= internal_a
->o_maxdata
;
1704 xcoff
->maxstack
= internal_a
->o_maxstack
;
1709 /* Set the flags field from the COFF header read in */
1710 if (! _bfd_coff_arm_set_private_flags (abfd
, internal_f
->f_flags
))
1715 /* FIXME: I'm not sure this is ever executed, since peicode.h
1716 defines coff_mkobject_hook. */
1717 if ((internal_f
->f_flags
& IMAGE_FILE_DEBUG_STRIPPED
) == 0)
1718 abfd
->flags
|= HAS_DEBUG
;
1725 /* Determine the machine architecture and type. FIXME: This is target
1726 dependent because the magic numbers are defined in the target
1727 dependent header files. But there is no particular need for this.
1728 If the magic numbers were moved to a separate file, this function
1729 would be target independent and would also be much more successful
1730 at linking together COFF files for different architectures. */
1733 coff_set_arch_mach_hook (abfd
, filehdr
)
1738 enum bfd_architecture arch
;
1739 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1742 switch (internal_f
->f_magic
)
1746 arch
= bfd_arch_powerpc
;
1747 machine
= 0; /* what does this mean? (krk) */
1753 case I386AIXMAGIC
: /* Danbury PS/2 AIX C Compiler */
1754 case LYNXCOFFMAGIC
: /* shadows the m68k Lynx number below, sigh */
1755 arch
= bfd_arch_i386
;
1759 #ifdef A29K_MAGIC_BIG
1760 case A29K_MAGIC_BIG
:
1761 case A29K_MAGIC_LITTLE
:
1762 arch
= bfd_arch_a29k
;
1768 arch
= bfd_arch_arm
;
1769 switch (internal_f
->f_flags
& F_ARM_ARCHITECTURE_MASK
)
1771 case F_ARM_2
: machine
= bfd_mach_arm_2
; break;
1772 case F_ARM_2a
: machine
= bfd_mach_arm_2a
; break;
1773 case F_ARM_3
: machine
= bfd_mach_arm_3
; break;
1775 case F_ARM_3M
: machine
= bfd_mach_arm_3M
; break;
1776 case F_ARM_4
: machine
= bfd_mach_arm_4
; break;
1777 case F_ARM_4T
: machine
= bfd_mach_arm_4T
; break;
1778 case F_ARM_5
: machine
= bfd_mach_arm_5
; break;
1785 #ifdef MC68KBCSMAGIC
1788 #ifdef APOLLOM68KMAGIC
1789 case APOLLOM68KMAGIC
:
1791 #ifdef LYNXCOFFMAGIC
1794 arch
= bfd_arch_m68k
;
1795 machine
= bfd_mach_m68020
;
1802 arch
= bfd_arch_m88k
;
1808 arch
= bfd_arch_z8k
;
1809 switch (internal_f
->f_flags
& F_MACHMASK
)
1812 machine
= bfd_mach_z8001
;
1815 machine
= bfd_mach_z8002
;
1824 arch
= bfd_arch_i860
;
1831 arch
= bfd_arch_i960
;
1832 switch (F_I960TYPE
& internal_f
->f_flags
)
1836 machine
= bfd_mach_i960_core
;
1839 machine
= bfd_mach_i960_kb_sb
;
1842 machine
= bfd_mach_i960_mc
;
1845 machine
= bfd_mach_i960_xa
;
1848 machine
= bfd_mach_i960_ca
;
1851 machine
= bfd_mach_i960_ka_sa
;
1854 machine
= bfd_mach_i960_jx
;
1857 machine
= bfd_mach_i960_hx
;
1871 if (xcoff_data (abfd
)->cputype
!= -1)
1872 cputype
= xcoff_data (abfd
)->cputype
& 0xff;
1875 /* We did not get a value from the a.out header. If the
1876 file has not been stripped, we may be able to get the
1877 architecture information from the first symbol, if it
1878 is a .file symbol. */
1879 if (obj_raw_syment_count (abfd
) == 0)
1883 bfd_byte buf
[bfd_coff_symesz (abfd
)];
1884 struct internal_syment sym
;
1886 if (bfd_seek (abfd
, obj_sym_filepos (abfd
), SEEK_SET
) != 0
1887 || bfd_read (buf
, 1, bfd_coff_symesz (abfd
), abfd
) != bfd_coff_symesz (abfd
))
1889 coff_swap_sym_in (abfd
, (PTR
) buf
, (PTR
) &sym
);
1890 if (sym
.n_sclass
== C_FILE
)
1891 cputype
= sym
.n_type
& 0xff;
1897 /* FIXME: We don't handle all cases here. */
1903 /* PowerPC Macs use the same magic numbers as RS/6000
1904 (because that's how they were bootstrapped originally),
1905 but they are always PowerPC architecture. */
1906 arch
= bfd_arch_powerpc
;
1909 arch
= bfd_arch_rs6000
;
1911 #endif /* POWERMAC */
1915 arch
= bfd_arch_powerpc
;
1918 case 2: /* 64 bit PowerPC */
1919 arch
= bfd_arch_powerpc
;
1923 arch
= bfd_arch_powerpc
;
1927 arch
= bfd_arch_rs6000
;
1937 arch
= bfd_arch_we32k
;
1944 arch
= bfd_arch_h8300
;
1945 machine
= bfd_mach_h8300
;
1946 /* !! FIXME this probably isn't the right place for this */
1947 abfd
->flags
|= BFD_IS_RELAXABLE
;
1953 arch
= bfd_arch_h8300
;
1954 machine
= bfd_mach_h8300h
;
1955 /* !! FIXME this probably isn't the right place for this */
1956 abfd
->flags
|= BFD_IS_RELAXABLE
;
1962 arch
= bfd_arch_h8300
;
1963 machine
= bfd_mach_h8300s
;
1964 /* !! FIXME this probably isn't the right place for this */
1965 abfd
->flags
|= BFD_IS_RELAXABLE
;
1969 #ifdef SH_ARCH_MAGIC_BIG
1970 case SH_ARCH_MAGIC_BIG
:
1971 case SH_ARCH_MAGIC_LITTLE
:
1979 arch
= bfd_arch_h8500
;
1986 #ifdef LYNXCOFFMAGIC
1989 arch
= bfd_arch_sparc
;
1996 arch
= bfd_arch_tic30
;
2000 #ifdef TIC80_ARCH_MAGIC
2001 case TIC80_ARCH_MAGIC
:
2002 arch
= bfd_arch_tic80
;
2008 arch
= bfd_arch_mcore
;
2011 default: /* Unreadable input file type */
2012 arch
= bfd_arch_obscure
;
2016 bfd_default_set_arch_mach (abfd
, arch
, machine
);
2020 #ifdef SYMNAME_IN_DEBUG
2022 static boolean symname_in_debug_hook
2023 PARAMS ((bfd
*, struct internal_syment
*));
2026 symname_in_debug_hook (abfd
, sym
)
2027 bfd
* abfd ATTRIBUTE_UNUSED
;
2028 struct internal_syment
*sym
;
2030 return SYMNAME_IN_DEBUG (sym
) ? true : false;
2035 #define symname_in_debug_hook \
2036 (boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false
2042 /* Handle the csect auxent of a C_EXT or C_HIDEXT symbol. */
2044 static boolean coff_pointerize_aux_hook
2045 PARAMS ((bfd
*, combined_entry_type
*, combined_entry_type
*,
2046 unsigned int, combined_entry_type
*));
2050 coff_pointerize_aux_hook (abfd
, table_base
, symbol
, indaux
, aux
)
2051 bfd
*abfd ATTRIBUTE_UNUSED
;
2052 combined_entry_type
*table_base
;
2053 combined_entry_type
*symbol
;
2054 unsigned int indaux
;
2055 combined_entry_type
*aux
;
2057 int class = symbol
->u
.syment
.n_sclass
;
2059 if ((class == C_EXT
|| class == C_HIDEXT
)
2060 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2062 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) == XTY_LD
)
2064 aux
->u
.auxent
.x_csect
.x_scnlen
.p
=
2065 table_base
+ aux
->u
.auxent
.x_csect
.x_scnlen
.l
;
2066 aux
->fix_scnlen
= 1;
2069 /* Return true to indicate that the caller should not do any
2070 further work on this auxent. */
2074 /* Return false to indicate that this auxent should be handled by
2082 /* We don't want to pointerize bal entries. */
2084 static boolean coff_pointerize_aux_hook
2085 PARAMS ((bfd
*, combined_entry_type
*, combined_entry_type
*,
2086 unsigned int, combined_entry_type
*));
2090 coff_pointerize_aux_hook (abfd
, table_base
, symbol
, indaux
, aux
)
2091 bfd
*abfd ATTRIBUTE_UNUSED
;
2092 combined_entry_type
*table_base ATTRIBUTE_UNUSED
;
2093 combined_entry_type
*symbol
;
2094 unsigned int indaux
;
2095 combined_entry_type
*aux ATTRIBUTE_UNUSED
;
2097 /* Return true if we don't want to pointerize this aux entry, which
2098 is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */
2100 && (symbol
->u
.syment
.n_sclass
== C_LEAFPROC
2101 || symbol
->u
.syment
.n_sclass
== C_LEAFSTAT
2102 || symbol
->u
.syment
.n_sclass
== C_LEAFEXT
));
2107 #define coff_pointerize_aux_hook 0
2110 #endif /* ! RS6000COFF_C */
2112 /* Print an aux entry. This returns true if it has printed it. */
2114 static boolean coff_print_aux
2115 PARAMS ((bfd
*, FILE *, combined_entry_type
*, combined_entry_type
*,
2116 combined_entry_type
*, unsigned int));
2119 coff_print_aux (abfd
, file
, table_base
, symbol
, aux
, indaux
)
2120 bfd
*abfd ATTRIBUTE_UNUSED
;
2121 FILE *file ATTRIBUTE_UNUSED
;
2122 combined_entry_type
*table_base ATTRIBUTE_UNUSED
;
2123 combined_entry_type
*symbol ATTRIBUTE_UNUSED
;
2124 combined_entry_type
*aux ATTRIBUTE_UNUSED
;
2125 unsigned int indaux ATTRIBUTE_UNUSED
;
2128 if ((symbol
->u
.syment
.n_sclass
== C_EXT
2129 || symbol
->u
.syment
.n_sclass
== C_HIDEXT
)
2130 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2132 /* This is a csect entry. */
2133 fprintf (file
, "AUX ");
2134 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) != XTY_LD
)
2136 BFD_ASSERT (! aux
->fix_scnlen
);
2137 fprintf (file
, "val %5ld", aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2141 fprintf (file
, "indx ");
2142 if (! aux
->fix_scnlen
)
2143 fprintf (file
, "%4ld", aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2145 fprintf (file
, "%4ld",
2146 (long) (aux
->u
.auxent
.x_csect
.x_scnlen
.p
- table_base
));
2149 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2150 aux
->u
.auxent
.x_csect
.x_parmhash
,
2151 (unsigned int) aux
->u
.auxent
.x_csect
.x_snhash
,
2152 SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
),
2153 SMTYP_ALIGN (aux
->u
.auxent
.x_csect
.x_smtyp
),
2154 (unsigned int) aux
->u
.auxent
.x_csect
.x_smclas
,
2155 aux
->u
.auxent
.x_csect
.x_stab
,
2156 (unsigned int) aux
->u
.auxent
.x_csect
.x_snstab
);
2161 /* Return false to indicate that no special action was taken. */
2169 To write relocations, the back end steps though the
2170 canonical relocation table and create an
2171 @code{internal_reloc}. The symbol index to use is removed from
2172 the @code{offset} field in the symbol table supplied. The
2173 address comes directly from the sum of the section base
2174 address and the relocation offset; the type is dug directly
2175 from the howto field. Then the @code{internal_reloc} is
2176 swapped into the shape of an @code{external_reloc} and written
2183 static int compare_arelent_ptr
PARAMS ((const PTR
, const PTR
));
2185 /* AUX's ld wants relocations to be sorted */
2187 compare_arelent_ptr (x
, y
)
2191 const arelent
**a
= (const arelent
**) x
;
2192 const arelent
**b
= (const arelent
**) y
;
2193 bfd_size_type aadr
= (*a
)->address
;
2194 bfd_size_type badr
= (*b
)->address
;
2196 return (aadr
< badr
? -1 : badr
< aadr
? 1 : 0);
2199 #endif /* TARG_AUX */
2202 coff_write_relocs (abfd
, first_undef
)
2208 for (s
= abfd
->sections
; s
!= (asection
*) NULL
; s
= s
->next
)
2211 struct external_reloc dst
;
2217 /* sort relocations before we write them out */
2218 p
= (arelent
**) bfd_malloc (s
->reloc_count
* sizeof (arelent
*));
2219 if (p
== NULL
&& s
->reloc_count
> 0)
2221 memcpy (p
, s
->orelocation
, s
->reloc_count
* sizeof (arelent
*));
2222 qsort (p
, s
->reloc_count
, sizeof (arelent
*), compare_arelent_ptr
);
2225 if (bfd_seek (abfd
, s
->rel_filepos
, SEEK_SET
) != 0)
2227 for (i
= 0; i
< s
->reloc_count
; i
++)
2229 struct internal_reloc n
;
2231 memset ((PTR
) & n
, 0, sizeof (n
));
2233 /* Now we've renumbered the symbols we know where the
2234 undefined symbols live in the table. Check the reloc
2235 entries for symbols who's output bfd isn't the right one.
2236 This is because the symbol was undefined (which means
2237 that all the pointers are never made to point to the same
2238 place). This is a bad thing,'cause the symbols attached
2239 to the output bfd are indexed, so that the relocation
2240 entries know which symbol index they point to. So we
2241 have to look up the output symbol here. */
2243 if (q
->sym_ptr_ptr
[0]->the_bfd
!= abfd
)
2246 const char *sname
= q
->sym_ptr_ptr
[0]->name
;
2247 asymbol
**outsyms
= abfd
->outsymbols
;
2248 for (i
= first_undef
; outsyms
[i
]; i
++)
2250 const char *intable
= outsyms
[i
]->name
;
2251 if (strcmp (intable
, sname
) == 0) {
2252 /* got a hit, so repoint the reloc */
2253 q
->sym_ptr_ptr
= outsyms
+ i
;
2259 n
.r_vaddr
= q
->address
+ s
->vma
;
2262 /* The 29k const/consth reloc pair is a real kludge. The consth
2263 part doesn't have a symbol; it has an offset. So rebuilt
2265 if (q
->howto
->type
== R_IHCONST
)
2266 n
.r_symndx
= q
->addend
;
2271 if (q
->sym_ptr_ptr
== bfd_abs_section_ptr
->symbol_ptr_ptr
)
2272 /* This is a relocation relative to the absolute symbol. */
2276 n
.r_symndx
= get_index ((*(q
->sym_ptr_ptr
)));
2277 /* Take notice if the symbol reloc points to a symbol
2278 we don't have in our symbol table. What should we
2280 if (n
.r_symndx
> obj_conv_table_size (abfd
))
2285 #ifdef SWAP_OUT_RELOC_OFFSET
2286 n
.r_offset
= q
->addend
;
2290 /* Work out reloc type from what is required */
2291 SELECT_RELOC (n
, q
->howto
);
2293 n
.r_type
= q
->howto
->type
;
2295 coff_swap_reloc_out (abfd
, &n
, &dst
);
2296 if (bfd_write ((PTR
) & dst
, 1, bfd_coff_relsz (abfd
), abfd
)
2297 != bfd_coff_relsz (abfd
))
2310 /* Set flags and magic number of a coff file from architecture and machine
2311 type. Result is true if we can represent the arch&type, false if not. */
2314 coff_set_flags (abfd
, magicp
, flagsp
)
2316 unsigned int *magicp ATTRIBUTE_UNUSED
;
2317 unsigned short *flagsp ATTRIBUTE_UNUSED
;
2319 switch (bfd_get_arch (abfd
))
2324 switch (bfd_get_mach (abfd
))
2326 case bfd_mach_z8001
:
2329 case bfd_mach_z8002
:
2343 *magicp
= I960ROMAGIC
;
2345 ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC :
2346 I960RWMAGIC); FIXME???
2348 switch (bfd_get_mach (abfd
))
2350 case bfd_mach_i960_core
:
2353 case bfd_mach_i960_kb_sb
:
2356 case bfd_mach_i960_mc
:
2359 case bfd_mach_i960_xa
:
2362 case bfd_mach_i960_ca
:
2365 case bfd_mach_i960_ka_sa
:
2368 case bfd_mach_i960_jx
:
2371 case bfd_mach_i960_hx
:
2384 case bfd_arch_tic30
:
2385 *magicp
= TIC30MAGIC
;
2388 #ifdef TIC80_ARCH_MAGIC
2389 case bfd_arch_tic80
:
2390 *magicp
= TIC80_ARCH_MAGIC
;
2395 * magicp
= ARMMAGIC
;
2397 if (APCS_SET (abfd
))
2399 if (APCS_26_FLAG (abfd
))
2400 * flagsp
|= F_APCS26
;
2402 if (APCS_FLOAT_FLAG (abfd
))
2403 * flagsp
|= F_APCS_FLOAT
;
2405 if (PIC_FLAG (abfd
))
2408 if (INTERWORK_SET (abfd
) && INTERWORK_FLAG (abfd
))
2409 * flagsp
|= F_INTERWORK
;
2410 switch (bfd_get_mach (abfd
))
2412 case bfd_mach_arm_2
: * flagsp
|= F_ARM_2
; break;
2413 case bfd_mach_arm_2a
: * flagsp
|= F_ARM_2a
; break;
2414 case bfd_mach_arm_3
: * flagsp
|= F_ARM_3
; break;
2415 case bfd_mach_arm_3M
: * flagsp
|= F_ARM_3M
; break;
2416 case bfd_mach_arm_4
: * flagsp
|= F_ARM_4
; break;
2417 case bfd_mach_arm_4T
: * flagsp
|= F_ARM_4T
; break;
2418 case bfd_mach_arm_5
: * flagsp
|= F_ARM_5
; break;
2419 case bfd_mach_arm_5T
: * flagsp
|= F_ARM_5
; break; /* XXX - we do not have an F_ARM_5T */
2424 case bfd_arch_powerpc
:
2431 *magicp
= I386MAGIC
;
2433 /* Just overwrite the usual value if we're doing Lynx. */
2434 *magicp
= LYNXCOFFMAGIC
;
2441 *magicp
= I860MAGIC
;
2447 #ifdef APOLLOM68KMAGIC
2448 *magicp
= APOLLO_COFF_VERSION_NUMBER
;
2450 /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */
2451 #ifdef NAMES_HAVE_UNDERSCORE
2452 *magicp
= MC68KBCSMAGIC
;
2454 *magicp
= MC68MAGIC
;
2458 /* Just overwrite the usual value if we're doing Lynx. */
2459 *magicp
= LYNXCOFFMAGIC
;
2467 *magicp
= MC88OMAGIC
;
2472 case bfd_arch_h8300
:
2473 switch (bfd_get_mach (abfd
))
2475 case bfd_mach_h8300
:
2476 *magicp
= H8300MAGIC
;
2478 case bfd_mach_h8300h
:
2479 *magicp
= H8300HMAGIC
;
2481 case bfd_mach_h8300s
:
2482 *magicp
= H8300SMAGIC
;
2488 #ifdef SH_ARCH_MAGIC_BIG
2490 if (bfd_big_endian (abfd
))
2491 *magicp
= SH_ARCH_MAGIC_BIG
;
2493 *magicp
= SH_ARCH_MAGIC_LITTLE
;
2499 case bfd_arch_sparc
:
2500 *magicp
= SPARCMAGIC
;
2502 /* Just overwrite the usual value if we're doing Lynx. */
2503 *magicp
= LYNXCOFFMAGIC
;
2510 case bfd_arch_h8500
:
2511 *magicp
= H8500MAGIC
;
2515 #ifdef A29K_MAGIC_BIG
2517 if (bfd_big_endian (abfd
))
2518 *magicp
= A29K_MAGIC_BIG
;
2520 *magicp
= A29K_MAGIC_LITTLE
;
2526 case bfd_arch_we32k
:
2527 *magicp
= WE32KMAGIC
;
2533 case bfd_arch_rs6000
:
2535 case bfd_arch_powerpc
:
2537 *magicp
= U802TOCMAGIC
;
2543 case bfd_arch_mcore
:
2544 * magicp
= MCOREMAGIC
;
2548 default: /* Unknown architecture */
2549 /* return false; -- fall through to "return false" below, to avoid
2550 "statement never reached" errors on the one below. */
2559 coff_set_arch_mach (abfd
, arch
, machine
)
2561 enum bfd_architecture arch
;
2562 unsigned long machine
;
2565 unsigned short dummy2
;
2567 if (! bfd_default_set_arch_mach (abfd
, arch
, machine
))
2570 if (arch
!= bfd_arch_unknown
&&
2571 coff_set_flags (abfd
, &dummy1
, &dummy2
) != true)
2572 return false; /* We can't represent this type */
2574 return true; /* We're easy ... */
2577 #ifdef COFF_IMAGE_WITH_PE
2579 /* This is used to sort sections by VMA, as required by PE image
2582 static int sort_by_secaddr
PARAMS ((const PTR
, const PTR
));
2585 sort_by_secaddr (arg1
, arg2
)
2589 const asection
*a
= *(const asection
**) arg1
;
2590 const asection
*b
= *(const asection
**) arg2
;
2592 if (a
->vma
< b
->vma
)
2594 else if (a
->vma
> b
->vma
)
2600 #endif /* COFF_IMAGE_WITH_PE */
2602 /* Calculate the file position for each section. */
2605 #define ALIGN_SECTIONS_IN_FILE
2608 #undef ALIGN_SECTIONS_IN_FILE
2612 coff_compute_section_file_positions (abfd
)
2616 asection
*previous
= (asection
*) NULL
;
2617 file_ptr sofar
= bfd_coff_filhsz (abfd
);
2618 boolean align_adjust
;
2619 #ifdef ALIGN_SECTIONS_IN_FILE
2624 /* On XCOFF, if we have symbols, set up the .debug section. */
2625 if (bfd_get_symcount (abfd
) > 0)
2628 bfd_size_type i
, symcount
;
2632 symcount
= bfd_get_symcount (abfd
);
2633 for (symp
= abfd
->outsymbols
, i
= 0; i
< symcount
; symp
++, i
++)
2635 coff_symbol_type
*cf
;
2637 cf
= coff_symbol_from (abfd
, *symp
);
2639 && cf
->native
!= NULL
2640 && SYMNAME_IN_DEBUG (&cf
->native
->u
.syment
))
2644 len
= strlen (bfd_asymbol_name (*symp
));
2653 dsec
= bfd_make_section_old_way (abfd
, ".debug");
2656 dsec
->_raw_size
= sz
;
2657 dsec
->flags
|= SEC_HAS_CONTENTS
;
2662 #ifdef COFF_IMAGE_WITH_PE
2664 if (coff_data (abfd
)->link_info
)
2666 page_size
= pe_data (abfd
)->pe_opthdr
.FileAlignment
;
2669 page_size
= PE_DEF_FILE_ALIGNMENT
;
2671 #ifdef COFF_PAGE_SIZE
2672 int page_size
= COFF_PAGE_SIZE
;
2676 if (bfd_get_start_address (abfd
))
2678 /* A start address may have been added to the original file. In this
2679 case it will need an optional header to record it. */
2680 abfd
->flags
|= EXEC_P
;
2683 if (abfd
->flags
& EXEC_P
)
2684 sofar
+= bfd_coff_aoutsz (abfd
);
2686 else if (xcoff_data (abfd
)->full_aouthdr
)
2687 sofar
+= bfd_coff_aoutsz (abfd
);
2689 sofar
+= SMALL_AOUTSZ
;
2692 sofar
+= abfd
->section_count
* bfd_coff_scnhsz (abfd
);
2695 /* XCOFF handles overflows in the reloc and line number count fields
2696 by allocating a new section header to hold the correct counts. */
2697 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
2698 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
2699 sofar
+= bfd_coff_scnhsz (abfd
);
2702 #ifdef COFF_IMAGE_WITH_PE
2704 /* PE requires the sections to be in memory order when listed in
2705 the section headers. It also does not like empty loadable
2706 sections. The sections apparently do not have to be in the
2707 right order in the image file itself, but we do need to get the
2708 target_index values right. */
2711 asection
**section_list
;
2716 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
2719 /* We allocate an extra cell to simplify the final loop. */
2720 section_list
= bfd_malloc (sizeof (struct asection
*) * (count
+ 1));
2721 if (section_list
== NULL
)
2725 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
2727 section_list
[i
] = current
;
2730 section_list
[i
] = NULL
;
2732 qsort (section_list
, count
, sizeof (asection
*), sort_by_secaddr
);
2734 /* Rethread the linked list into sorted order; at the same time,
2735 assign target_index values. */
2737 abfd
->sections
= section_list
[0];
2738 for (i
= 0; i
< count
; i
++)
2740 current
= section_list
[i
];
2741 current
->next
= section_list
[i
+ 1];
2743 /* Later, if the section has zero size, we'll be throwing it
2744 away, so we don't want to number it now. Note that having
2745 a zero size and having real contents are different
2746 concepts: .bss has no contents, but (usually) non-zero
2748 if (current
->_raw_size
== 0)
2750 /* Discard. However, it still might have (valid) symbols
2751 in it, so arbitrarily set it to section 1 (indexing is
2752 1-based here; usually .text). __end__ and other
2753 contents of .endsection really have this happen.
2754 FIXME: This seems somewhat dubious. */
2755 current
->target_index
= 1;
2758 current
->target_index
= target_index
++;
2761 free (section_list
);
2763 #else /* ! COFF_IMAGE_WITH_PE */
2765 /* Set the target_index field. */
2769 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
2770 current
->target_index
= target_index
++;
2772 #endif /* ! COFF_IMAGE_WITH_PE */
2774 align_adjust
= false;
2775 for (current
= abfd
->sections
;
2776 current
!= (asection
*) NULL
;
2777 current
= current
->next
)
2779 #ifdef COFF_IMAGE_WITH_PE
2780 /* With PE we have to pad each section to be a multiple of its
2781 page size too, and remember both sizes. */
2782 if (coff_section_data (abfd
, current
) == NULL
)
2784 current
->used_by_bfd
=
2785 (PTR
) bfd_zalloc (abfd
, sizeof (struct coff_section_tdata
));
2786 if (current
->used_by_bfd
== NULL
)
2789 if (pei_section_data (abfd
, current
) == NULL
)
2791 coff_section_data (abfd
, current
)->tdata
=
2792 (PTR
) bfd_zalloc (abfd
, sizeof (struct pei_section_tdata
));
2793 if (coff_section_data (abfd
, current
)->tdata
== NULL
)
2796 if (pei_section_data (abfd
, current
)->virt_size
== 0)
2797 pei_section_data (abfd
, current
)->virt_size
= current
->_raw_size
;
2800 /* Only deal with sections which have contents. */
2801 if (!(current
->flags
& SEC_HAS_CONTENTS
))
2804 #ifdef COFF_IMAGE_WITH_PE
2805 /* Make sure we skip empty sections in a PE image. */
2806 if (current
->_raw_size
== 0)
2810 /* Align the sections in the file to the same boundary on
2811 which they are aligned in virtual memory. I960 doesn't
2812 do this (FIXME) so we can stay in sync with Intel. 960
2813 doesn't yet page from files... */
2814 #ifdef ALIGN_SECTIONS_IN_FILE
2815 if ((abfd
->flags
& EXEC_P
) != 0)
2817 /* make sure this section is aligned on the right boundary - by
2818 padding the previous section up if necessary */
2821 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
2822 if (previous
!= (asection
*) NULL
)
2824 previous
->_raw_size
+= sofar
- old_sofar
;
2830 /* In demand paged files the low order bits of the file offset
2831 must match the low order bits of the virtual address. */
2832 #ifdef COFF_PAGE_SIZE
2833 if ((abfd
->flags
& D_PAGED
) != 0
2834 && (current
->flags
& SEC_ALLOC
) != 0)
2835 sofar
+= (current
->vma
- sofar
) % page_size
;
2837 current
->filepos
= sofar
;
2839 #ifdef COFF_IMAGE_WITH_PE
2840 /* Set the padded size. */
2841 current
->_raw_size
= (current
->_raw_size
+ page_size
-1) & -page_size
;
2844 sofar
+= current
->_raw_size
;
2846 #ifdef ALIGN_SECTIONS_IN_FILE
2847 /* make sure that this section is of the right size too */
2848 if ((abfd
->flags
& EXEC_P
) == 0)
2850 bfd_size_type old_size
;
2852 old_size
= current
->_raw_size
;
2853 current
->_raw_size
= BFD_ALIGN (current
->_raw_size
,
2854 1 << current
->alignment_power
);
2855 align_adjust
= current
->_raw_size
!= old_size
;
2856 sofar
+= current
->_raw_size
- old_size
;
2861 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
2862 align_adjust
= sofar
!= old_sofar
;
2863 current
->_raw_size
+= sofar
- old_sofar
;
2867 #ifdef COFF_IMAGE_WITH_PE
2868 /* For PE we need to make sure we pad out to the aligned
2869 _raw_size, in case the caller only writes out data to the
2870 unaligned _raw_size. */
2871 if (pei_section_data (abfd
, current
)->virt_size
< current
->_raw_size
)
2872 align_adjust
= true;
2876 /* Force .lib sections to start at zero. The vma is then
2877 incremented in coff_set_section_contents. This is right for
2879 if (strcmp (current
->name
, _LIB
) == 0)
2880 bfd_set_section_vma (abfd
, current
, 0);
2886 /* It is now safe to write to the output file. If we needed an
2887 alignment adjustment for the last section, then make sure that
2888 there is a byte at offset sofar. If there are no symbols and no
2889 relocs, then nothing follows the last section. If we don't force
2890 the last byte out, then the file may appear to be truncated. */
2896 if (bfd_seek (abfd
, sofar
- 1, SEEK_SET
) != 0
2897 || bfd_write (&b
, 1, 1, abfd
) != 1)
2901 /* Make sure the relocations are aligned. We don't need to make
2902 sure that this byte exists, because it will only matter if there
2903 really are relocs. */
2904 sofar
= BFD_ALIGN (sofar
, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER
);
2906 obj_relocbase (abfd
) = sofar
;
2907 abfd
->output_has_begun
= true;
2914 /* This can never work, because it is called too late--after the
2915 section positions have been set. I can't figure out what it is
2916 for, so I am going to disable it--Ian Taylor 20 March 1996. */
2918 /* If .file, .text, .data, .bss symbols are missing, add them. */
2919 /* @@ Should we only be adding missing symbols, or overriding the aux
2920 values for existing section symbols? */
2922 coff_add_missing_symbols (abfd
)
2925 unsigned int nsyms
= bfd_get_symcount (abfd
);
2926 asymbol
**sympp
= abfd
->outsymbols
;
2929 int need_text
= 1, need_data
= 1, need_bss
= 1, need_file
= 1;
2931 for (i
= 0; i
< nsyms
; i
++)
2933 coff_symbol_type
*csym
= coff_symbol_from (abfd
, sympp
[i
]);
2937 /* only do this if there is a coff representation of the input
2939 if (csym
->native
&& csym
->native
->u
.syment
.n_sclass
== C_FILE
)
2944 name
= csym
->symbol
.name
;
2947 if (!strcmp (name
, _TEXT
))
2950 else if (!strcmp (name
, ".wtext"))
2953 else if (!strcmp (name
, _DATA
))
2955 else if (!strcmp (name
, _BSS
))
2959 /* Now i == bfd_get_symcount (abfd). */
2960 /* @@ For now, don't deal with .file symbol. */
2963 if (!need_text
&& !need_data
&& !need_bss
&& !need_file
)
2965 nsyms
+= need_text
+ need_data
+ need_bss
+ need_file
;
2966 sympp2
= (asymbol
**) bfd_alloc (abfd
, nsyms
* sizeof (asymbol
*));
2969 memcpy (sympp2
, sympp
, i
* sizeof (asymbol
*));
2972 /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */
2976 sympp2
[i
++] = coff_section_symbol (abfd
, _TEXT
);
2978 sympp2
[i
++] = coff_section_symbol (abfd
, _DATA
);
2980 sympp2
[i
++] = coff_section_symbol (abfd
, _BSS
);
2981 BFD_ASSERT (i
== nsyms
);
2982 bfd_set_symtab (abfd
, sympp2
, nsyms
);
2991 coff_write_object_contents (abfd
)
2995 boolean hasrelocs
= false;
2996 boolean haslinno
= false;
2997 boolean hasdebug
= false;
2999 file_ptr reloc_base
;
3000 file_ptr lineno_base
;
3002 unsigned long reloc_size
= 0;
3003 unsigned long lnno_size
= 0;
3004 boolean long_section_names
;
3005 asection
*text_sec
= NULL
;
3006 asection
*data_sec
= NULL
;
3007 asection
*bss_sec
= NULL
;
3008 struct internal_filehdr internal_f
;
3009 struct internal_aouthdr internal_a
;
3010 #ifdef COFF_LONG_SECTION_NAMES
3011 size_t string_size
= STRING_SIZE_SIZE
;
3014 bfd_set_error (bfd_error_system_call
);
3016 /* Make a pass through the symbol table to count line number entries and
3017 put them into the correct asections */
3019 lnno_size
= coff_count_linenumbers (abfd
) * bfd_coff_linesz (abfd
);
3021 if (abfd
->output_has_begun
== false)
3023 if (! coff_compute_section_file_positions (abfd
))
3027 reloc_base
= obj_relocbase (abfd
);
3029 /* Work out the size of the reloc and linno areas */
3031 for (current
= abfd
->sections
; current
!= NULL
; current
=
3033 reloc_size
+= current
->reloc_count
* bfd_coff_relsz (abfd
);
3035 lineno_base
= reloc_base
+ reloc_size
;
3036 sym_base
= lineno_base
+ lnno_size
;
3038 /* Indicate in each section->line_filepos its actual file address */
3039 for (current
= abfd
->sections
; current
!= NULL
; current
=
3042 if (current
->lineno_count
)
3044 current
->line_filepos
= lineno_base
;
3045 current
->moving_line_filepos
= lineno_base
;
3046 lineno_base
+= current
->lineno_count
* bfd_coff_linesz (abfd
);
3050 current
->line_filepos
= 0;
3052 if (current
->reloc_count
)
3054 current
->rel_filepos
= reloc_base
;
3055 reloc_base
+= current
->reloc_count
* bfd_coff_relsz (abfd
);
3059 current
->rel_filepos
= 0;
3063 /* Write section headers to the file. */
3064 internal_f
.f_nscns
= 0;
3066 if ((abfd
->flags
& EXEC_P
) != 0)
3067 scn_base
= bfd_coff_filhsz (abfd
) + bfd_coff_aoutsz (abfd
);
3070 scn_base
= bfd_coff_filhsz (abfd
);
3072 if (xcoff_data (abfd
)->full_aouthdr
)
3073 scn_base
+= bfd_coff_aoutsz (abfd
);
3075 scn_base
+= SMALL_AOUTSZ
;
3079 if (bfd_seek (abfd
, scn_base
, SEEK_SET
) != 0)
3082 long_section_names
= false;
3083 for (current
= abfd
->sections
;
3085 current
= current
->next
)
3087 struct internal_scnhdr section
;
3088 boolean is_reloc_section
= false;
3090 #ifdef COFF_IMAGE_WITH_PE
3091 if (strcmp (current
->name
, ".reloc") == 0)
3093 is_reloc_section
= true;
3095 pe_data (abfd
)->has_reloc_section
= 1;
3099 internal_f
.f_nscns
++;
3101 strncpy (section
.s_name
, current
->name
, SCNNMLEN
);
3103 #ifdef COFF_LONG_SECTION_NAMES
3104 /* Handle long section names as in PE. This must be compatible
3105 with the code in coff_write_symbols and _bfd_coff_final_link. */
3109 len
= strlen (current
->name
);
3112 memset (section
.s_name
, 0, SCNNMLEN
);
3113 sprintf (section
.s_name
, "/%lu", (unsigned long) string_size
);
3114 string_size
+= len
+ 1;
3115 long_section_names
= true;
3121 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3122 Ian Taylor <ian@cygnus.com>. */
3123 if (strcmp (current
->name
, _LIB
) == 0)
3124 section
.s_vaddr
= 0;
3127 section
.s_vaddr
= current
->vma
;
3128 section
.s_paddr
= current
->lma
;
3129 section
.s_size
= current
->_raw_size
;
3132 section
.s_paddr
= 0;
3134 #ifdef COFF_IMAGE_WITH_PE
3135 /* Reminder: s_paddr holds the virtual size of the section. */
3136 if (coff_section_data (abfd
, current
) != NULL
3137 && pei_section_data (abfd
, current
) != NULL
)
3138 section
.s_paddr
= pei_section_data (abfd
, current
)->virt_size
;
3140 section
.s_paddr
= 0;
3144 If this section has no size or is unloadable then the scnptr
3147 if (current
->_raw_size
== 0 ||
3148 (current
->flags
& (SEC_LOAD
| SEC_HAS_CONTENTS
)) == 0)
3150 section
.s_scnptr
= 0;
3154 section
.s_scnptr
= current
->filepos
;
3156 section
.s_relptr
= current
->rel_filepos
;
3157 section
.s_lnnoptr
= current
->line_filepos
;
3158 section
.s_nreloc
= current
->reloc_count
;
3159 section
.s_nlnno
= current
->lineno_count
;
3160 #ifndef COFF_IMAGE_WITH_PE
3161 /* In PEI, relocs come in the .reloc section. */
3162 if (current
->reloc_count
!= 0)
3165 if (current
->lineno_count
!= 0)
3167 if ((current
->flags
& SEC_DEBUGGING
) != 0
3168 && ! is_reloc_section
)
3172 /* Indicate the use of an XCOFF overflow section header. */
3173 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3175 section
.s_nreloc
= 0xffff;
3176 section
.s_nlnno
= 0xffff;
3180 section
.s_flags
= sec_to_styp_flags (current
->name
, current
->flags
);
3182 if (!strcmp (current
->name
, _TEXT
))
3186 else if (!strcmp (current
->name
, _DATA
))
3190 else if (!strcmp (current
->name
, _BSS
))
3196 section
.s_align
= (current
->alignment_power
3197 ? 1 << current
->alignment_power
3201 section
.s_flags
|= (current
->alignment_power
& 0xF) << 8;
3205 #ifdef COFF_IMAGE_WITH_PE
3206 /* Suppress output of the sections if they are null. ld
3207 includes the bss and data sections even if there is no size
3208 assigned to them. NT loader doesn't like it if these section
3209 headers are included if the sections themselves are not
3210 needed. See also coff_compute_section_file_positions. */
3211 if (section
.s_size
== 0)
3212 internal_f
.f_nscns
--;
3217 if (coff_swap_scnhdr_out (abfd
, §ion
, &buff
) == 0
3218 || bfd_write ((PTR
) (&buff
), 1, bfd_coff_scnhsz (abfd
), abfd
)
3219 != bfd_coff_scnhsz (abfd
))
3224 /* PE stores COMDAT section information in the symbol table. If
3225 this section is supposed to have some COMDAT info, track down
3226 the symbol in the symbol table and modify it. */
3227 if ((current
->flags
& SEC_LINK_ONCE
) != 0)
3229 unsigned int i
, count
;
3231 coff_symbol_type
*csym
= NULL
;
3235 count
= bfd_get_symcount (abfd
);
3236 for (i
= 0, psym
= abfd
->outsymbols
; i
< count
; i
++, psym
++)
3238 if ((*psym
)->section
!= current
)
3241 /* Remember the location of the first symbol in this
3243 if (psymsec
== NULL
)
3246 /* See if this is the section symbol. */
3247 if (strcmp ((*psym
)->name
, current
->name
) == 0)
3249 csym
= coff_symbol_from (abfd
, *psym
);
3251 || csym
->native
== NULL
3252 || csym
->native
->u
.syment
.n_numaux
< 1
3253 || csym
->native
->u
.syment
.n_sclass
!= C_STAT
3254 || csym
->native
->u
.syment
.n_type
!= T_NULL
)
3257 /* Here *PSYM is the section symbol for CURRENT. */
3264 Note that we might not if we're converting the file from
3265 some other object file format. */
3268 combined_entry_type
*aux
;
3270 /* We don't touch the x_checksum field. The
3271 x_associated field is not currently supported. */
3273 aux
= csym
->native
+ 1;
3274 switch (current
->flags
& SEC_LINK_DUPLICATES
)
3276 case SEC_LINK_DUPLICATES_DISCARD
:
3277 aux
->u
.auxent
.x_scn
.x_comdat
= IMAGE_COMDAT_SELECT_ANY
;
3280 case SEC_LINK_DUPLICATES_ONE_ONLY
:
3281 aux
->u
.auxent
.x_scn
.x_comdat
=
3282 IMAGE_COMDAT_SELECT_NODUPLICATES
;
3285 case SEC_LINK_DUPLICATES_SAME_SIZE
:
3286 aux
->u
.auxent
.x_scn
.x_comdat
=
3287 IMAGE_COMDAT_SELECT_SAME_SIZE
;
3290 case SEC_LINK_DUPLICATES_SAME_CONTENTS
:
3291 aux
->u
.auxent
.x_scn
.x_comdat
=
3292 IMAGE_COMDAT_SELECT_EXACT_MATCH
;
3296 /* The COMDAT symbol must be the first symbol from this
3297 section in the symbol table. In order to make this
3298 work, we move the COMDAT symbol before the first
3299 symbol we found in the search above. It's OK to
3300 rearrange the symbol table at this point, because
3301 coff_renumber_symbols is going to rearrange it
3302 further and fix up all the aux entries. */
3303 if (psym
!= psymsec
)
3309 for (pcopy
= psym
; pcopy
> psymsec
; pcopy
--)
3310 pcopy
[0] = pcopy
[-1];
3315 #endif /* COFF_WITH_PE */
3319 /* XCOFF handles overflows in the reloc and line number count fields
3320 by creating a new section header to hold the correct values. */
3321 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3323 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3325 struct internal_scnhdr scnhdr
;
3328 internal_f
.f_nscns
++;
3329 strncpy (&(scnhdr
.s_name
[0]), current
->name
, 8);
3330 scnhdr
.s_paddr
= current
->reloc_count
;
3331 scnhdr
.s_vaddr
= current
->lineno_count
;
3333 scnhdr
.s_scnptr
= 0;
3334 scnhdr
.s_relptr
= current
->rel_filepos
;
3335 scnhdr
.s_lnnoptr
= current
->line_filepos
;
3336 scnhdr
.s_nreloc
= current
->target_index
;
3337 scnhdr
.s_nlnno
= current
->target_index
;
3338 scnhdr
.s_flags
= STYP_OVRFLO
;
3339 if (coff_swap_scnhdr_out (abfd
, &scnhdr
, &buff
) == 0
3340 || bfd_write ((PTR
) &buff
, 1, bfd_coff_scnhsz (abfd
), abfd
)
3341 != bfd_coff_scnhsz (abfd
))
3347 /* OK, now set up the filehdr... */
3349 /* Don't include the internal abs section in the section count */
3352 We will NOT put a fucking timestamp in the header here. Every time you
3353 put it back, I will come in and take it out again. I'm sorry. This
3354 field does not belong here. We fill it with a 0 so it compares the
3355 same but is not a reasonable time. -- gnu@cygnus.com
3357 internal_f
.f_timdat
= 0;
3359 internal_f
.f_flags
= 0;
3361 if (abfd
->flags
& EXEC_P
)
3362 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3365 internal_f
.f_opthdr
= 0;
3367 if (xcoff_data (abfd
)->full_aouthdr
)
3368 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3370 internal_f
.f_opthdr
= SMALL_AOUTSZ
;
3375 internal_f
.f_flags
|= F_RELFLG
;
3377 internal_f
.f_flags
|= F_LNNO
;
3378 if (abfd
->flags
& EXEC_P
)
3379 internal_f
.f_flags
|= F_EXEC
;
3380 #ifdef COFF_IMAGE_WITH_PE
3382 internal_f
.f_flags
|= IMAGE_FILE_DEBUG_STRIPPED
;
3385 #ifndef COFF_WITH_PE
3386 if (bfd_little_endian (abfd
))
3387 internal_f
.f_flags
|= F_AR32WR
;
3389 internal_f
.f_flags
|= F_AR32W
;
3392 #ifdef TIC80_TARGET_ID
3393 internal_f
.f_target_id
= TIC80_TARGET_ID
;
3397 FIXME, should do something about the other byte orders and
3402 if ((abfd
->flags
& DYNAMIC
) != 0)
3403 internal_f
.f_flags
|= F_SHROBJ
;
3404 if (bfd_get_section_by_name (abfd
, _LOADER
) != NULL
)
3405 internal_f
.f_flags
|= F_DYNLOAD
;
3408 memset (&internal_a
, 0, sizeof internal_a
);
3410 /* Set up architecture-dependent stuff */
3413 unsigned int magic
= 0;
3414 unsigned short flags
= 0;
3415 coff_set_flags (abfd
, &magic
, &flags
);
3416 internal_f
.f_magic
= magic
;
3417 internal_f
.f_flags
|= flags
;
3418 /* ...and the "opt"hdr... */
3421 #ifdef ULTRA3 /* NYU's machine */
3422 /* FIXME: This is a bogus check. I really want to see if there
3423 * is a .shbss or a .shdata section, if so then set the magic
3424 * number to indicate a shared data executable.
3426 if (internal_f
.f_nscns
>= 7)
3427 internal_a
.magic
= SHMAGIC
; /* Shared magic */
3430 internal_a
.magic
= NMAGIC
; /* Assume separate i/d */
3431 #define __A_MAGIC_SET__
3434 internal_a
.magic
= TIC80_ARCH_MAGIC
;
3435 #define __A_MAGIC_SET__
3438 /* FIXME: What are the a.out magic numbers for the i860? */
3439 internal_a
.magic
= 0;
3440 #define __A_MAGIC_SET__
3443 internal_a
.magic
= (magic
== I960ROMAGIC
? NMAGIC
: OMAGIC
);
3444 #define __A_MAGIC_SET__
3447 #define __A_MAGIC_SET__
3448 internal_a
.magic
= PAGEMAGICBCS
;
3452 #define __A_MAGIC_SET__
3453 internal_a
.magic
= APOLLO_COFF_VERSION_NUMBER
;
3456 #if defined(M68) || defined(WE32K) || defined(M68K)
3457 #define __A_MAGIC_SET__
3459 internal_a
.magic
= LYNXCOFFMAGIC
;
3461 #if defined(TARG_AUX)
3462 internal_a
.magic
= (abfd
->flags
& D_PAGED
? PAGEMAGICPEXECPAGED
:
3463 abfd
->flags
& WP_TEXT
? PAGEMAGICPEXECSWAPPED
:
3464 PAGEMAGICEXECSWAPPED
);
3466 #if defined (PAGEMAGICPEXECPAGED)
3467 internal_a
.magic
= PAGEMAGICPEXECPAGED
;
3469 #endif /* TARG_AUX */
3471 #endif /* M68 || WE32K || M68K */
3474 #define __A_MAGIC_SET__
3475 internal_a
.magic
= ZMAGIC
;
3479 #define __A_MAGIC_SET__
3480 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
3483 #if defined MCORE_PE
3484 #define __A_MAGIC_SET__
3485 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
3489 #define __A_MAGIC_SET__
3491 internal_a
.magic
= LYNXCOFFMAGIC
;
3493 internal_a
.magic
= ZMAGIC
;
3498 #define __A_MAGIC_SET__
3500 internal_a
.magic
= LYNXCOFFMAGIC
;
3505 #define __A_MAGIC_SET__
3506 internal_a
.magic
= (abfd
->flags
& D_PAGED
) ? RS6K_AOUTHDR_ZMAGIC
:
3507 (abfd
->flags
& WP_TEXT
) ? RS6K_AOUTHDR_NMAGIC
:
3508 RS6K_AOUTHDR_OMAGIC
;
3511 #ifndef __A_MAGIC_SET__
3512 #include "Your aouthdr magic number is not being set!"
3514 #undef __A_MAGIC_SET__
3518 /* FIXME: Does anybody ever set this to another value? */
3519 internal_a
.vstamp
= 0;
3521 /* Now should write relocs, strings, syms */
3522 obj_sym_filepos (abfd
) = sym_base
;
3524 if (bfd_get_symcount (abfd
) != 0)
3528 if (!coff_add_missing_symbols (abfd
))
3531 if (!coff_renumber_symbols (abfd
, &firstundef
))
3533 coff_mangle_symbols (abfd
);
3534 if (! coff_write_symbols (abfd
))
3536 if (! coff_write_linenumbers (abfd
))
3538 if (! coff_write_relocs (abfd
, firstundef
))
3541 #ifdef COFF_LONG_SECTION_NAMES
3542 else if (long_section_names
)
3544 /* If we have long section names we have to write out the string
3545 table even if there are no symbols. */
3546 if (! coff_write_symbols (abfd
))
3550 #ifdef COFF_IMAGE_WITH_PE
3552 else if ((abfd
->flags
& EXEC_P
) != 0)
3556 /* PowerPC PE appears to require that all executable files be
3557 rounded up to the page size. */
3560 BFD_ALIGN (sym_base
, COFF_PAGE_SIZE
) - 1,
3562 || bfd_write (&b
, 1, 1, abfd
) != 1)
3568 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
3569 backend linker, and obj_raw_syment_count is not valid until after
3570 coff_write_symbols is called. */
3571 if (obj_raw_syment_count (abfd
) != 0)
3573 internal_f
.f_symptr
= sym_base
;
3575 /* AIX appears to require that F_RELFLG not be set if there are
3576 local symbols but no relocations. */
3577 internal_f
.f_flags
&=~ F_RELFLG
;
3582 if (long_section_names
)
3583 internal_f
.f_symptr
= sym_base
;
3585 internal_f
.f_symptr
= 0;
3586 internal_f
.f_flags
|= F_LSYMS
;
3591 internal_a
.tsize
= bfd_get_section_size_before_reloc (text_sec
);
3592 internal_a
.text_start
= internal_a
.tsize
? text_sec
->vma
: 0;
3596 internal_a
.dsize
= bfd_get_section_size_before_reloc (data_sec
);
3597 internal_a
.data_start
= internal_a
.dsize
? data_sec
->vma
: 0;
3601 internal_a
.bsize
= bfd_get_section_size_before_reloc (bss_sec
);
3602 if (internal_a
.bsize
&& bss_sec
->vma
< internal_a
.data_start
)
3603 internal_a
.data_start
= bss_sec
->vma
;
3606 internal_a
.entry
= bfd_get_start_address (abfd
);
3607 internal_f
.f_nsyms
= obj_raw_syment_count (abfd
);
3610 if (xcoff_data (abfd
)->full_aouthdr
)
3613 asection
*loader_sec
;
3615 internal_a
.vstamp
= 1;
3617 internal_a
.o_snentry
= xcoff_data (abfd
)->snentry
;
3618 if (internal_a
.o_snentry
== 0)
3619 internal_a
.entry
= (bfd_vma
) -1;
3621 if (text_sec
!= NULL
)
3623 internal_a
.o_sntext
= text_sec
->target_index
;
3624 internal_a
.o_algntext
= bfd_get_section_alignment (abfd
, text_sec
);
3628 internal_a
.o_sntext
= 0;
3629 internal_a
.o_algntext
= 0;
3631 if (data_sec
!= NULL
)
3633 internal_a
.o_sndata
= data_sec
->target_index
;
3634 internal_a
.o_algndata
= bfd_get_section_alignment (abfd
, data_sec
);
3638 internal_a
.o_sndata
= 0;
3639 internal_a
.o_algndata
= 0;
3641 loader_sec
= bfd_get_section_by_name (abfd
, ".loader");
3642 if (loader_sec
!= NULL
)
3643 internal_a
.o_snloader
= loader_sec
->target_index
;
3645 internal_a
.o_snloader
= 0;
3646 if (bss_sec
!= NULL
)
3647 internal_a
.o_snbss
= bss_sec
->target_index
;
3649 internal_a
.o_snbss
= 0;
3651 toc
= xcoff_data (abfd
)->toc
;
3652 internal_a
.o_toc
= toc
;
3653 internal_a
.o_sntoc
= xcoff_data (abfd
)->sntoc
;
3655 internal_a
.o_modtype
= xcoff_data (abfd
)->modtype
;
3656 if (xcoff_data (abfd
)->cputype
!= -1)
3657 internal_a
.o_cputype
= xcoff_data (abfd
)->cputype
;
3660 switch (bfd_get_arch (abfd
))
3662 case bfd_arch_rs6000
:
3663 internal_a
.o_cputype
= 4;
3665 case bfd_arch_powerpc
:
3666 if (bfd_get_mach (abfd
) == 0)
3667 internal_a
.o_cputype
= 3;
3669 internal_a
.o_cputype
= 1;
3675 internal_a
.o_maxstack
= xcoff_data (abfd
)->maxstack
;
3676 internal_a
.o_maxdata
= xcoff_data (abfd
)->maxdata
;
3680 /* now write them */
3681 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
) != 0)
3686 bfd_size_type amount
;
3688 buff
= bfd_malloc (bfd_coff_filhsz (abfd
));
3692 coff_swap_filehdr_out (abfd
, (PTR
) & internal_f
, (PTR
) buff
);
3693 amount
= bfd_write ((PTR
) buff
, 1, bfd_coff_filhsz (abfd
), abfd
);
3697 if (amount
!= bfd_coff_filhsz (abfd
))
3701 if (abfd
->flags
& EXEC_P
)
3703 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
3704 include/coff/pe.h sets AOUTSZ == sizeof(PEAOUTHDR)) */
3706 bfd_size_type amount
;
3708 buff
= bfd_malloc (bfd_coff_aoutsz (abfd
));
3712 coff_swap_aouthdr_out (abfd
, (PTR
) & internal_a
, (PTR
) buff
);
3713 amount
= bfd_write ((PTR
) buff
, 1, bfd_coff_aoutsz (abfd
), abfd
);
3717 if (amount
!= bfd_coff_aoutsz (abfd
))
3726 /* XCOFF seems to always write at least a small a.out header. */
3727 coff_swap_aouthdr_out (abfd
, (PTR
) &internal_a
, (PTR
) &buff
);
3728 if (xcoff_data (abfd
)->full_aouthdr
)
3729 size
= bfd_coff_aoutsz (abfd
);
3731 size
= SMALL_AOUTSZ
;
3732 if (bfd_write ((PTR
) &buff
, 1, size
, abfd
) != size
)
3741 coff_set_section_contents (abfd
, section
, location
, offset
, count
)
3746 bfd_size_type count
;
3748 if (abfd
->output_has_begun
== false) /* set by bfd.c handler */
3750 if (! coff_compute_section_file_positions (abfd
))
3754 #if defined(_LIB) && !defined(TARG_AUX)
3756 /* The physical address field of a .lib section is used to hold the
3757 number of shared libraries in the section. This code counts the
3758 number of sections being written, and increments the lma field
3761 I have found no documentation on the contents of this section.
3762 Experimentation indicates that the section contains zero or more
3763 records, each of which has the following structure:
3765 - a (four byte) word holding the length of this record, in words,
3766 - a word that always seems to be set to "2",
3767 - the path to a shared library, null-terminated and then padded
3768 to a whole word boundary.
3770 bfd_assert calls have been added to alert if an attempt is made
3771 to write a section which doesn't follow these assumptions. The
3772 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
3773 <robertl@arnet.com> (Thanks!).
3775 Gvran Uddeborg <gvran@uddeborg.pp.se> */
3777 if (strcmp (section
->name
, _LIB
) == 0)
3779 bfd_byte
*rec
, *recend
;
3781 rec
= (bfd_byte
*) location
;
3782 recend
= rec
+ count
;
3783 while (rec
< recend
)
3786 rec
+= bfd_get_32 (abfd
, rec
) * 4;
3789 BFD_ASSERT (rec
== recend
);
3794 /* Don't write out bss sections - one way to do this is to
3795 see if the filepos has not been set. */
3796 if (section
->filepos
== 0)
3799 if (bfd_seek (abfd
, (file_ptr
) (section
->filepos
+ offset
), SEEK_SET
) != 0)
3804 return (bfd_write (location
, 1, count
, abfd
) == count
) ? true : false;
3810 coff_close_and_cleanup (abfd
)
3813 if (!bfd_read_p (abfd
))
3814 switch (abfd
->format
)
3817 if (!_bfd_write_archive_contents (abfd
))
3821 if (!coff_write_object_contents (abfd
))
3825 bfd_set_error (bfd_error_invalid_operation
);
3829 /* We depend on bfd_close to free all the memory on the objalloc. */
3836 buy_and_read (abfd
, where
, seek_direction
, size
)
3842 PTR area
= (PTR
) bfd_alloc (abfd
, size
);
3845 if (bfd_seek (abfd
, where
, seek_direction
) != 0
3846 || bfd_read (area
, 1, size
, abfd
) != size
)
3849 } /* buy_and_read() */
3855 Creating the linenumber table is done by reading in the entire
3856 coff linenumber table, and creating another table for internal use.
3858 A coff linenumber table is structured so that each function
3859 is marked as having a line number of 0. Each line within the
3860 function is an offset from the first line in the function. The
3861 base of the line number information for the table is stored in
3862 the symbol associated with the function.
3864 Note: The PE format uses line number 0 for a flag indicating a
3867 The information is copied from the external to the internal
3868 table, and each symbol which marks a function is marked by
3871 How does this work ?
3876 coff_slurp_line_table (abfd
, asect
)
3880 LINENO
*native_lineno
;
3881 alent
*lineno_cache
;
3883 BFD_ASSERT (asect
->lineno
== (alent
*) NULL
);
3885 native_lineno
= (LINENO
*) buy_and_read (abfd
,
3886 asect
->line_filepos
,
3888 (size_t) (bfd_coff_linesz (abfd
) *
3889 asect
->lineno_count
));
3891 (alent
*) bfd_alloc (abfd
, (size_t) ((asect
->lineno_count
+ 1) * sizeof (alent
)));
3892 if (lineno_cache
== NULL
)
3896 unsigned int counter
= 0;
3897 alent
*cache_ptr
= lineno_cache
;
3898 LINENO
*src
= native_lineno
;
3900 while (counter
< asect
->lineno_count
)
3902 struct internal_lineno dst
;
3903 coff_swap_lineno_in (abfd
, src
, &dst
);
3904 cache_ptr
->line_number
= dst
.l_lnno
;
3906 if (cache_ptr
->line_number
== 0)
3910 coff_symbol_type
*sym
;
3913 symndx
= dst
.l_addr
.l_symndx
;
3915 || (unsigned long) symndx
>= obj_raw_syment_count (abfd
))
3917 (*_bfd_error_handler
)
3918 (_("%s: warning: illegal symbol index %ld in line numbers"),
3919 bfd_get_filename (abfd
), dst
.l_addr
.l_symndx
);
3923 /* FIXME: We should not be casting between ints and
3924 pointers like this. */
3925 sym
= ((coff_symbol_type
*)
3926 ((symndx
+ obj_raw_syments (abfd
))
3927 ->u
.syment
._n
._n_n
._n_zeroes
));
3928 cache_ptr
->u
.sym
= (asymbol
*) sym
;
3929 if (sym
->lineno
!= NULL
&& ! warned
)
3931 (*_bfd_error_handler
)
3932 (_("%s: warning: duplicate line number information for `%s'"),
3933 bfd_get_filename (abfd
),
3934 bfd_asymbol_name (&sym
->symbol
));
3936 sym
->lineno
= cache_ptr
;
3940 cache_ptr
->u
.offset
= dst
.l_addr
.l_paddr
3941 - bfd_section_vma (abfd
, asect
);
3942 } /* If no linenumber expect a symbol index */
3948 cache_ptr
->line_number
= 0;
3951 asect
->lineno
= lineno_cache
;
3952 /* FIXME, free native_lineno here, or use alloca or something. */
3956 /* Slurp in the symbol table, converting it to generic form. Note
3957 that if coff_relocate_section is defined, the linker will read
3958 symbols via coff_link_add_symbols, rather than via this routine. */
3961 coff_slurp_symbol_table (abfd
)
3964 combined_entry_type
*native_symbols
;
3965 coff_symbol_type
*cached_area
;
3966 unsigned int *table_ptr
;
3968 unsigned int number_of_symbols
= 0;
3970 if (obj_symbols (abfd
))
3973 /* Read in the symbol table */
3974 if ((native_symbols
= coff_get_normalized_symtab (abfd
)) == NULL
)
3979 /* Allocate enough room for all the symbols in cached form */
3980 cached_area
= ((coff_symbol_type
*)
3982 (obj_raw_syment_count (abfd
)
3983 * sizeof (coff_symbol_type
))));
3985 if (cached_area
== NULL
)
3987 table_ptr
= ((unsigned int *)
3989 (obj_raw_syment_count (abfd
)
3990 * sizeof (unsigned int))));
3992 if (table_ptr
== NULL
)
3996 coff_symbol_type
*dst
= cached_area
;
3997 unsigned int last_native_index
= obj_raw_syment_count (abfd
);
3998 unsigned int this_index
= 0;
3999 while (this_index
< last_native_index
)
4001 combined_entry_type
*src
= native_symbols
+ this_index
;
4002 table_ptr
[this_index
] = number_of_symbols
;
4003 dst
->symbol
.the_bfd
= abfd
;
4005 dst
->symbol
.name
= (char *) (src
->u
.syment
._n
._n_n
._n_offset
);
4006 /* We use the native name field to point to the cached field. */
4007 src
->u
.syment
._n
._n_n
._n_zeroes
= (long) dst
;
4008 dst
->symbol
.section
= coff_section_from_bfd_index (abfd
,
4009 src
->u
.syment
.n_scnum
);
4010 dst
->symbol
.flags
= 0;
4011 dst
->done_lineno
= false;
4013 switch (src
->u
.syment
.n_sclass
)
4018 dst
->symbol
.value
= src
->u
.syment
.n_value
- dst
->symbol
.section
->vma
;
4019 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
4020 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4022 /* Fall through to next case */
4030 case C_THUMBEXTFUNC
:
4036 case C_SYSTEM
: /* System Wide variable */
4039 /* In PE, 0x68 (104) denotes a section symbol */
4041 /* In PE, 0x69 (105) denotes a weak external symbol. */
4044 switch (coff_classify_symbol (abfd
, &src
->u
.syment
))
4046 case COFF_SYMBOL_GLOBAL
:
4047 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
4048 #if defined COFF_WITH_PE
4049 /* PE sets the symbol to a value relative to the
4050 start of the section. */
4051 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4053 dst
->symbol
.value
= (src
->u
.syment
.n_value
4054 - dst
->symbol
.section
->vma
);
4056 if (ISFCN ((src
->u
.syment
.n_type
)))
4058 /* A function ext does not go at the end of a
4060 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4064 case COFF_SYMBOL_COMMON
:
4065 dst
->symbol
.section
= bfd_com_section_ptr
;
4066 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4069 case COFF_SYMBOL_UNDEFINED
:
4070 dst
->symbol
.section
= bfd_und_section_ptr
;
4071 dst
->symbol
.value
= 0;
4074 case COFF_SYMBOL_PE_SECTION
:
4075 dst
->symbol
.flags
|= BSF_EXPORT
| BSF_SECTION_SYM
;
4076 dst
->symbol
.value
= 0;
4079 case COFF_SYMBOL_LOCAL
:
4080 dst
->symbol
.flags
= BSF_LOCAL
;
4081 #if defined COFF_WITH_PE
4082 /* PE sets the symbol to a value relative to the
4083 start of the section. */
4084 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4086 dst
->symbol
.value
= (src
->u
.syment
.n_value
4087 - dst
->symbol
.section
->vma
);
4089 if (ISFCN ((src
->u
.syment
.n_type
)))
4090 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4095 /* A symbol with a csect entry should not go at the end. */
4096 if (src
->u
.syment
.n_numaux
> 0)
4097 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
4101 if (src
->u
.syment
.n_sclass
== C_NT_WEAK
)
4102 dst
->symbol
.flags
= BSF_WEAK
;
4103 if (src
->u
.syment
.n_sclass
== C_SECTION
4104 && src
->u
.syment
.n_scnum
> 0)
4106 dst
->symbol
.flags
= BSF_LOCAL
;
4110 if (src
->u
.syment
.n_sclass
== C_WEAKEXT
)
4111 dst
->symbol
.flags
= BSF_WEAK
;
4115 case C_STAT
: /* static */
4117 case C_LEAFSTAT
: /* static leaf procedure */
4120 case C_THUMBSTAT
: /* Thumb static */
4121 case C_THUMBLABEL
: /* Thumb label */
4122 case C_THUMBSTATFUNC
:/* Thumb static function */
4124 case C_LABEL
: /* label */
4125 if (src
->u
.syment
.n_scnum
== N_DEBUG
)
4126 dst
->symbol
.flags
= BSF_DEBUGGING
;
4128 dst
->symbol
.flags
= BSF_LOCAL
;
4130 /* Base the value as an index from the base of the
4131 section, if there is one. */
4132 if (dst
->symbol
.section
)
4134 #if defined COFF_WITH_PE
4135 /* PE sets the symbol to a value relative to the
4136 start of the section. */
4137 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4139 dst
->symbol
.value
= (src
->u
.syment
.n_value
4140 - dst
->symbol
.section
->vma
);
4144 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4147 case C_MOS
: /* member of structure */
4148 case C_EOS
: /* end of structure */
4149 #ifdef NOTDEF /* C_AUTOARG has the same value */
4151 case C_GLBLREG
: /* A29k-specific storage class */
4154 case C_REGPARM
: /* register parameter */
4155 case C_REG
: /* register variable */
4158 case C_AUTOARG
: /* 960-specific storage class */
4161 case C_TPDEF
: /* type definition */
4163 case C_AUTO
: /* automatic variable */
4164 case C_FIELD
: /* bit field */
4165 case C_ENTAG
: /* enumeration tag */
4166 case C_MOE
: /* member of enumeration */
4167 case C_MOU
: /* member of union */
4168 case C_UNTAG
: /* union tag */
4169 dst
->symbol
.flags
= BSF_DEBUGGING
;
4170 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4173 case C_FILE
: /* file name */
4174 case C_STRTAG
: /* structure tag */
4189 dst
->symbol
.flags
= BSF_DEBUGGING
;
4190 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4194 case C_BINCL
: /* beginning of include file */
4195 case C_EINCL
: /* ending of include file */
4196 /* The value is actually a pointer into the line numbers
4197 of the file. We locate the line number entry, and
4198 set the section to the section which contains it, and
4199 the value to the index in that section. */
4203 dst
->symbol
.flags
= BSF_DEBUGGING
;
4204 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
4205 if (sec
->line_filepos
<= (file_ptr
) src
->u
.syment
.n_value
4206 && ((file_ptr
) (sec
->line_filepos
4207 + sec
->lineno_count
* bfd_coff_linesz (abfd
))
4208 > (file_ptr
) src
->u
.syment
.n_value
))
4211 dst
->symbol
.value
= 0;
4214 dst
->symbol
.section
= sec
;
4215 dst
->symbol
.value
= ((src
->u
.syment
.n_value
4216 - sec
->line_filepos
)
4217 / bfd_coff_linesz (abfd
));
4224 dst
->symbol
.flags
= BSF_DEBUGGING
;
4226 /* The value is actually a symbol index. Save a pointer
4227 to the symbol instead of the index. FIXME: This
4228 should use a union. */
4229 src
->u
.syment
.n_value
=
4230 (long) (native_symbols
+ src
->u
.syment
.n_value
);
4231 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4236 case C_BLOCK
: /* ".bb" or ".eb" */
4237 case C_FCN
: /* ".bf" or ".ef" (or PE ".lf") */
4238 case C_EFCN
: /* physical end of function */
4239 #if defined COFF_WITH_PE
4240 /* PE sets the symbol to a value relative to the start
4242 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4243 if (strcmp (dst
->symbol
.name
, ".bf") != 0)
4245 /* PE uses funny values for .ef and .lf; don't
4247 dst
->symbol
.flags
= BSF_DEBUGGING
;
4250 dst
->symbol
.flags
= BSF_DEBUGGING
| BSF_DEBUGGING_RELOC
;
4252 /* Base the value as an index from the base of the
4254 dst
->symbol
.flags
= BSF_LOCAL
;
4255 dst
->symbol
.value
= (src
->u
.syment
.n_value
4256 - dst
->symbol
.section
->vma
);
4261 /* PE DLLs sometimes have zeroed out symbols for some
4262 reason. Just ignore them without a warning. */
4263 if (src
->u
.syment
.n_type
== 0
4264 && src
->u
.syment
.n_value
== 0
4265 && src
->u
.syment
.n_scnum
== 0)
4268 case C_EXTDEF
: /* external definition */
4269 case C_ULABEL
: /* undefined label */
4270 case C_USTATIC
: /* undefined static */
4271 #ifndef COFF_WITH_PE
4272 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4273 class to represent a section symbol */
4274 case C_LINE
: /* line # reformatted as symbol table entry */
4275 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4276 case C_ALIAS
: /* duplicate tag */
4278 /* New storage classes for TIc80 */
4280 case C_UEXT
: /* Tentative external definition */
4282 case C_STATLAB
: /* Static load time label */
4283 case C_EXTLAB
: /* External load time label */
4284 case C_HIDDEN
: /* ext symbol in dmert public lib */
4286 (*_bfd_error_handler
)
4287 (_("%s: Unrecognized storage class %d for %s symbol `%s'"),
4288 bfd_get_filename (abfd
), src
->u
.syment
.n_sclass
,
4289 dst
->symbol
.section
->name
, dst
->symbol
.name
);
4290 dst
->symbol
.flags
= BSF_DEBUGGING
;
4291 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4295 /* BFD_ASSERT(dst->symbol.flags != 0);*/
4299 dst
->symbol
.udata
.i
= 0;
4300 dst
->lineno
= (alent
*) NULL
;
4301 this_index
+= (src
->u
.syment
.n_numaux
) + 1;
4303 number_of_symbols
++;
4304 } /* walk the native symtab */
4305 } /* bfdize the native symtab */
4307 obj_symbols (abfd
) = cached_area
;
4308 obj_raw_syments (abfd
) = native_symbols
;
4310 bfd_get_symcount (abfd
) = number_of_symbols
;
4311 obj_convert (abfd
) = table_ptr
;
4312 /* Slurp the line tables for each section too */
4318 coff_slurp_line_table (abfd
, p
);
4323 } /* coff_slurp_symbol_table() */
4325 /* Classify a COFF symbol. A couple of targets have globally visible
4326 symbols which are not class C_EXT, and this handles those. It also
4327 recognizes some special PE cases. */
4329 static enum coff_symbol_classification
4330 coff_classify_symbol (abfd
, syment
)
4332 struct internal_syment
*syment
;
4334 /* FIXME: This partially duplicates the switch in
4335 coff_slurp_symbol_table. */
4336 switch (syment
->n_sclass
)
4345 case C_THUMBEXTFUNC
:
4353 if (syment
->n_scnum
== 0)
4355 if (syment
->n_value
== 0)
4356 return COFF_SYMBOL_UNDEFINED
;
4358 return COFF_SYMBOL_COMMON
;
4360 return COFF_SYMBOL_GLOBAL
;
4367 if (syment
->n_sclass
== C_STAT
)
4369 if (syment
->n_scnum
== 0)
4371 /* The Microsoft compiler sometimes generates these if a
4372 small static function is inlined every time it is used.
4373 The function is discarded, but the symbol table entry
4375 return COFF_SYMBOL_LOCAL
;
4378 #ifdef STRICT_PE_FORMAT
4379 /* This is correct for Microsoft generated objects, but it
4380 breaks gas generated objects. */
4382 if (syment
->n_value
== 0)
4385 char buf
[SYMNMLEN
+ 1];
4387 sec
= coff_section_from_bfd_index (abfd
, syment
->n_scnum
);
4389 && (strcmp (bfd_get_section_name (abfd
, sec
),
4390 _bfd_coff_internal_syment_name (abfd
, syment
, buf
))
4392 return COFF_SYMBOL_PE_SECTION
;
4396 return COFF_SYMBOL_LOCAL
;
4399 if (syment
->n_sclass
== C_SECTION
)
4401 /* In some cases in a DLL generated by the Microsoft linker, the
4402 n_value field will contain garbage. FIXME: This should
4403 probably be handled by the swapping function instead. */
4404 syment
->n_value
= 0;
4405 if (syment
->n_scnum
== 0)
4406 return COFF_SYMBOL_UNDEFINED
;
4407 return COFF_SYMBOL_PE_SECTION
;
4409 #endif /* COFF_WITH_PE */
4411 /* If it is not a global symbol, we presume it is a local symbol. */
4413 if (syment
->n_scnum
== 0)
4415 char buf
[SYMNMLEN
+ 1];
4417 (*_bfd_error_handler
)
4418 (_("warning: %s: local symbol `%s' has no section"),
4419 bfd_get_filename (abfd
),
4420 _bfd_coff_internal_syment_name (abfd
, syment
, buf
));
4423 return COFF_SYMBOL_LOCAL
;
4430 Coff relocations are easily transformed into the internal BFD form
4433 Reading a coff relocation table is done in the following stages:
4435 o Read the entire coff relocation table into memory.
4437 o Process each relocation in turn; first swap it from the
4438 external to the internal form.
4440 o Turn the symbol referenced in the relocation's symbol index
4441 into a pointer into the canonical symbol table.
4442 This table is the same as the one returned by a call to
4443 @code{bfd_canonicalize_symtab}. The back end will call that
4444 routine and save the result if a canonicalization hasn't been done.
4446 o The reloc index is turned into a pointer to a howto
4447 structure, in a back end specific way. For instance, the 386
4448 and 960 use the @code{r_type} to directly produce an index
4449 into a howto table vector; the 88k subtracts a number from the
4450 @code{r_type} field and creates an addend field.
4456 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
4458 coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \
4459 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
4460 coffsym = (obj_symbols (abfd) \
4461 + (cache_ptr->sym_ptr_ptr - symbols)); \
4463 coffsym = coff_symbol_from (abfd, ptr); \
4464 if (coffsym != (coff_symbol_type *) NULL \
4465 && coffsym->native->u.syment.n_scnum == 0) \
4466 cache_ptr->addend = 0; \
4467 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
4468 && ptr->section != (asection *) NULL) \
4469 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
4471 cache_ptr->addend = 0; \
4476 coff_slurp_reloc_table (abfd
, asect
, symbols
)
4481 RELOC
*native_relocs
;
4482 arelent
*reloc_cache
;
4487 if (asect
->relocation
)
4489 if (asect
->reloc_count
== 0)
4491 if (asect
->flags
& SEC_CONSTRUCTOR
)
4493 if (!coff_slurp_symbol_table (abfd
))
4496 (RELOC
*) buy_and_read (abfd
,
4499 (size_t) (bfd_coff_relsz (abfd
) *
4500 asect
->reloc_count
));
4501 reloc_cache
= (arelent
*)
4502 bfd_alloc (abfd
, (size_t) (asect
->reloc_count
* sizeof (arelent
)));
4504 if (reloc_cache
== NULL
)
4508 for (idx
= 0; idx
< asect
->reloc_count
; idx
++)
4510 struct internal_reloc dst
;
4511 struct external_reloc
*src
;
4512 #ifndef RELOC_PROCESSING
4516 cache_ptr
= reloc_cache
+ idx
;
4517 src
= native_relocs
+ idx
;
4519 coff_swap_reloc_in (abfd
, src
, &dst
);
4521 #ifdef RELOC_PROCESSING
4522 RELOC_PROCESSING (cache_ptr
, &dst
, symbols
, abfd
, asect
);
4524 cache_ptr
->address
= dst
.r_vaddr
;
4526 if (dst
.r_symndx
!= -1)
4528 if (dst
.r_symndx
< 0 || dst
.r_symndx
>= obj_conv_table_size (abfd
))
4530 (*_bfd_error_handler
)
4531 (_("%s: warning: illegal symbol index %ld in relocs"),
4532 bfd_get_filename (abfd
), dst
.r_symndx
);
4533 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
4538 cache_ptr
->sym_ptr_ptr
= (symbols
4539 + obj_convert (abfd
)[dst
.r_symndx
]);
4540 ptr
= *(cache_ptr
->sym_ptr_ptr
);
4545 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
4549 /* The symbols definitions that we have read in have been
4550 relocated as if their sections started at 0. But the offsets
4551 refering to the symbols in the raw data have not been
4552 modified, so we have to have a negative addend to compensate.
4554 Note that symbols which used to be common must be left alone */
4556 /* Calculate any reloc addend by looking at the symbol */
4557 CALC_ADDEND (abfd
, ptr
, dst
, cache_ptr
);
4559 cache_ptr
->address
-= asect
->vma
;
4560 /* !! cache_ptr->section = (asection *) NULL;*/
4562 /* Fill in the cache_ptr->howto field from dst.r_type */
4563 RTYPE2HOWTO (cache_ptr
, &dst
);
4564 #endif /* RELOC_PROCESSING */
4566 if (cache_ptr
->howto
== NULL
)
4568 (*_bfd_error_handler
)
4569 (_("%s: illegal relocation type %d at address 0x%lx"),
4570 bfd_get_filename (abfd
), dst
.r_type
, (long) dst
.r_vaddr
);
4571 bfd_set_error (bfd_error_bad_value
);
4576 asect
->relocation
= reloc_cache
;
4580 #ifndef coff_rtype_to_howto
4583 /* Get the howto structure for a reloc. This is only used if the file
4584 including this one defines coff_relocate_section to be
4585 _bfd_coff_generic_relocate_section, so it is OK if it does not
4586 always work. It is the responsibility of the including file to
4587 make sure it is reasonable if it is needed. */
4589 static reloc_howto_type
*coff_rtype_to_howto
4590 PARAMS ((bfd
*, asection
*, struct internal_reloc
*,
4591 struct coff_link_hash_entry
*, struct internal_syment
*,
4595 static reloc_howto_type
*
4596 coff_rtype_to_howto (abfd
, sec
, rel
, h
, sym
, addendp
)
4597 bfd
*abfd ATTRIBUTE_UNUSED
;
4598 asection
*sec ATTRIBUTE_UNUSED
;
4599 struct internal_reloc
*rel
;
4600 struct coff_link_hash_entry
*h ATTRIBUTE_UNUSED
;
4601 struct internal_syment
*sym ATTRIBUTE_UNUSED
;
4602 bfd_vma
*addendp ATTRIBUTE_UNUSED
;
4606 RTYPE2HOWTO (&genrel
, rel
);
4607 return genrel
.howto
;
4610 #else /* ! defined (RTYPE2HOWTO) */
4612 #define coff_rtype_to_howto NULL
4614 #endif /* ! defined (RTYPE2HOWTO) */
4615 #endif /* ! defined (coff_rtype_to_howto) */
4617 /* This is stupid. This function should be a boolean predicate. */
4619 coff_canonicalize_reloc (abfd
, section
, relptr
, symbols
)
4625 arelent
*tblptr
= section
->relocation
;
4626 unsigned int count
= 0;
4629 if (section
->flags
& SEC_CONSTRUCTOR
)
4631 /* this section has relocs made up by us, they are not in the
4632 file, so take them out of their chain and place them into
4633 the data area provided */
4634 arelent_chain
*chain
= section
->constructor_chain
;
4635 for (count
= 0; count
< section
->reloc_count
; count
++)
4637 *relptr
++ = &chain
->relent
;
4638 chain
= chain
->next
;
4644 if (! coff_slurp_reloc_table (abfd
, section
, symbols
))
4647 tblptr
= section
->relocation
;
4649 for (; count
++ < section
->reloc_count
;)
4650 *relptr
++ = tblptr
++;
4655 return section
->reloc_count
;
4660 coff_sym_filepos (abfd
)
4663 return obj_sym_filepos (abfd
);
4667 #ifndef coff_reloc16_estimate
4668 #define coff_reloc16_estimate dummy_reloc16_estimate
4670 static int dummy_reloc16_estimate
4671 PARAMS ((bfd
*, asection
*, arelent
*, unsigned int,
4672 struct bfd_link_info
*));
4675 dummy_reloc16_estimate (abfd
, input_section
, reloc
, shrink
, link_info
)
4676 bfd
*abfd ATTRIBUTE_UNUSED
;
4677 asection
*input_section ATTRIBUTE_UNUSED
;
4678 arelent
*reloc ATTRIBUTE_UNUSED
;
4679 unsigned int shrink ATTRIBUTE_UNUSED
;
4680 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
;
4688 #ifndef coff_reloc16_extra_cases
4690 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
4692 /* This works even if abort is not declared in any header file. */
4694 static void dummy_reloc16_extra_cases
4695 PARAMS ((bfd
*, struct bfd_link_info
*, struct bfd_link_order
*, arelent
*,
4696 bfd_byte
*, unsigned int *, unsigned int *));
4699 dummy_reloc16_extra_cases (abfd
, link_info
, link_order
, reloc
, data
, src_ptr
,
4701 bfd
*abfd ATTRIBUTE_UNUSED
;
4702 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
;
4703 struct bfd_link_order
*link_order ATTRIBUTE_UNUSED
;
4704 arelent
*reloc ATTRIBUTE_UNUSED
;
4705 bfd_byte
*data ATTRIBUTE_UNUSED
;
4706 unsigned int *src_ptr ATTRIBUTE_UNUSED
;
4707 unsigned int *dst_ptr ATTRIBUTE_UNUSED
;
4713 /* If coff_relocate_section is defined, we can use the optimized COFF
4714 backend linker. Otherwise we must continue to use the old linker. */
4715 #ifdef coff_relocate_section
4716 #ifndef coff_bfd_link_hash_table_create
4717 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
4719 #ifndef coff_bfd_link_add_symbols
4720 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
4722 #ifndef coff_bfd_final_link
4723 #define coff_bfd_final_link _bfd_coff_final_link
4725 #else /* ! defined (coff_relocate_section) */
4726 #define coff_relocate_section NULL
4727 #ifndef coff_bfd_link_hash_table_create
4728 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
4730 #ifndef coff_bfd_link_add_symbols
4731 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
4733 #define coff_bfd_final_link _bfd_generic_final_link
4734 #endif /* ! defined (coff_relocate_section) */
4736 #define coff_bfd_link_split_section _bfd_generic_link_split_section
4738 #ifndef coff_start_final_link
4739 #define coff_start_final_link NULL
4742 #ifndef coff_adjust_symndx
4743 #define coff_adjust_symndx NULL
4746 #ifndef coff_link_add_one_symbol
4747 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
4750 #ifndef coff_link_output_has_begun
4752 static boolean coff_link_output_has_begun
4753 PARAMS ((bfd
*, struct coff_final_link_info
*));
4756 coff_link_output_has_begun (abfd
, info
)
4758 struct coff_final_link_info
* info ATTRIBUTE_UNUSED
;
4760 return abfd
->output_has_begun
;
4764 #ifndef coff_final_link_postscript
4766 static boolean coff_final_link_postscript
4767 PARAMS ((bfd
*, struct coff_final_link_info
*));
4770 coff_final_link_postscript (abfd
, pfinfo
)
4771 bfd
* abfd ATTRIBUTE_UNUSED
;
4772 struct coff_final_link_info
* pfinfo ATTRIBUTE_UNUSED
;
4778 #ifndef coff_SWAP_aux_in
4779 #define coff_SWAP_aux_in coff_swap_aux_in
4781 #ifndef coff_SWAP_sym_in
4782 #define coff_SWAP_sym_in coff_swap_sym_in
4784 #ifndef coff_SWAP_lineno_in
4785 #define coff_SWAP_lineno_in coff_swap_lineno_in
4787 #ifndef coff_SWAP_aux_out
4788 #define coff_SWAP_aux_out coff_swap_aux_out
4790 #ifndef coff_SWAP_sym_out
4791 #define coff_SWAP_sym_out coff_swap_sym_out
4793 #ifndef coff_SWAP_lineno_out
4794 #define coff_SWAP_lineno_out coff_swap_lineno_out
4796 #ifndef coff_SWAP_reloc_out
4797 #define coff_SWAP_reloc_out coff_swap_reloc_out
4799 #ifndef coff_SWAP_filehdr_out
4800 #define coff_SWAP_filehdr_out coff_swap_filehdr_out
4802 #ifndef coff_SWAP_aouthdr_out
4803 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
4805 #ifndef coff_SWAP_scnhdr_out
4806 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
4808 #ifndef coff_SWAP_reloc_in
4809 #define coff_SWAP_reloc_in coff_swap_reloc_in
4811 #ifndef coff_SWAP_filehdr_in
4812 #define coff_SWAP_filehdr_in coff_swap_filehdr_in
4814 #ifndef coff_SWAP_aouthdr_in
4815 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
4817 #ifndef coff_SWAP_scnhdr_in
4818 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
4821 static const bfd_coff_backend_data bfd_coff_std_swap_table
=
4823 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
4824 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
4825 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
4826 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
4827 coff_SWAP_scnhdr_out
,
4828 FILHSZ
, AOUTSZ
, SCNHSZ
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
4829 #ifdef COFF_LONG_FILENAMES
4834 #ifdef COFF_LONG_SECTION_NAMES
4839 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
4840 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
4841 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
4842 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
4843 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
4844 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
4845 coff_classify_symbol
, coff_compute_section_file_positions
,
4846 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
4847 coff_adjust_symndx
, coff_link_add_one_symbol
,
4848 coff_link_output_has_begun
, coff_final_link_postscript
4851 #ifndef coff_close_and_cleanup
4852 #define coff_close_and_cleanup _bfd_generic_close_and_cleanup
4855 #ifndef coff_bfd_free_cached_info
4856 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
4859 #ifndef coff_get_section_contents
4860 #define coff_get_section_contents _bfd_generic_get_section_contents
4863 #ifndef coff_bfd_copy_private_symbol_data
4864 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
4867 #ifndef coff_bfd_copy_private_section_data
4868 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
4871 #ifndef coff_bfd_copy_private_bfd_data
4872 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
4875 #ifndef coff_bfd_merge_private_bfd_data
4876 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
4879 #ifndef coff_bfd_set_private_flags
4880 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
4883 #ifndef coff_bfd_print_private_bfd_data
4884 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
4887 #ifndef coff_bfd_is_local_label_name
4888 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
4891 #ifndef coff_read_minisymbols
4892 #define coff_read_minisymbols _bfd_generic_read_minisymbols
4895 #ifndef coff_minisymbol_to_symbol
4896 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
4899 /* The reloc lookup routine must be supplied by each individual COFF
4901 #ifndef coff_bfd_reloc_type_lookup
4902 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
4905 #ifndef coff_bfd_get_relocated_section_contents
4906 #define coff_bfd_get_relocated_section_contents \
4907 bfd_generic_get_relocated_section_contents
4910 #ifndef coff_bfd_relax_section
4911 #define coff_bfd_relax_section bfd_generic_relax_section
4914 #ifndef coff_bfd_gc_sections
4915 #define coff_bfd_gc_sections bfd_generic_gc_sections
4918 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE) \
4919 const bfd_target VAR = \
4922 bfd_target_coff_flavour, \
4923 BFD_ENDIAN_BIG, /* data byte order is big */ \
4924 BFD_ENDIAN_BIG, /* header byte order is big */ \
4925 /* object flags */ \
4926 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
4927 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
4928 /* section flags */ \
4929 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
4930 UNDER, /* leading symbol underscore */ \
4931 '/', /* ar_pad_char */ \
4932 15, /* ar_max_namelen */ \
4934 /* Data conversion functions. */ \
4935 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
4936 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
4937 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
4939 /* Header conversion functions. */ \
4940 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
4941 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
4942 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
4944 /* bfd_check_format */ \
4945 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
4946 _bfd_dummy_target }, \
4947 /* bfd_set_format */ \
4948 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
4949 /* bfd_write_contents */ \
4950 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
4953 BFD_JUMP_TABLE_GENERIC (coff), \
4954 BFD_JUMP_TABLE_COPY (coff), \
4955 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
4956 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
4957 BFD_JUMP_TABLE_SYMBOLS (coff), \
4958 BFD_JUMP_TABLE_RELOCS (coff), \
4959 BFD_JUMP_TABLE_WRITE (coff), \
4960 BFD_JUMP_TABLE_LINK (coff), \
4961 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
4968 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE) \
4969 const bfd_target VAR = \
4972 bfd_target_coff_flavour, \
4973 BFD_ENDIAN_LITTLE, /* data byte order is little */ \
4974 BFD_ENDIAN_LITTLE, /* header byte order is little */ \
4975 /* object flags */ \
4976 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
4977 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
4978 /* section flags */ \
4979 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
4980 UNDER, /* leading symbol underscore */ \
4981 '/', /* ar_pad_char */ \
4982 15, /* ar_max_namelen */ \
4984 /* Data conversion functions. */ \
4985 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
4986 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
4987 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
4988 /* Header conversion functions. */ \
4989 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
4990 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
4991 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
4992 /* bfd_check_format */ \
4993 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
4994 _bfd_dummy_target }, \
4995 /* bfd_set_format */ \
4996 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
4997 /* bfd_write_contents */ \
4998 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5001 BFD_JUMP_TABLE_GENERIC (coff), \
5002 BFD_JUMP_TABLE_COPY (coff), \
5003 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5004 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5005 BFD_JUMP_TABLE_SYMBOLS (coff), \
5006 BFD_JUMP_TABLE_RELOCS (coff), \
5007 BFD_JUMP_TABLE_WRITE (coff), \
5008 BFD_JUMP_TABLE_LINK (coff), \
5009 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \