2004-05-07 H.J. Lu <hongjiu.lu@intel.com>
[binutils.git] / bfd / coffcode.h
blob35da7c9054d1d9e2e3cee0fc68e0a35b9467bc2d
1 /* Support for the generic parts of most COFF variants, for BFD.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004
4 Free Software Foundation, Inc.
5 Written by Cygnus Support.
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
24 Most of this hacked by Steve Chamberlain,
25 sac@cygnus.com
29 SECTION
30 coff backends
32 BFD supports a number of different flavours of coff format.
33 The major differences between formats are the sizes and
34 alignments of fields in structures on disk, and the occasional
35 extra field.
37 Coff in all its varieties is implemented with a few common
38 files and a number of implementation specific files. For
39 example, The 88k bcs coff format is implemented in the file
40 @file{coff-m88k.c}. This file @code{#include}s
41 @file{coff/m88k.h} which defines the external structure of the
42 coff format for the 88k, and @file{coff/internal.h} which
43 defines the internal structure. @file{coff-m88k.c} also
44 defines the relocations used by the 88k format
45 @xref{Relocations}.
47 The Intel i960 processor version of coff is implemented in
48 @file{coff-i960.c}. This file has the same structure as
49 @file{coff-m88k.c}, except that it includes @file{coff/i960.h}
50 rather than @file{coff-m88k.h}.
52 SUBSECTION
53 Porting to a new version of coff
55 The recommended method is to select from the existing
56 implementations the version of coff which is most like the one
57 you want to use. For example, we'll say that i386 coff is
58 the one you select, and that your coff flavour is called foo.
59 Copy @file{i386coff.c} to @file{foocoff.c}, copy
60 @file{../include/coff/i386.h} to @file{../include/coff/foo.h},
61 and add the lines to @file{targets.c} and @file{Makefile.in}
62 so that your new back end is used. Alter the shapes of the
63 structures in @file{../include/coff/foo.h} so that they match
64 what you need. You will probably also have to add
65 @code{#ifdef}s to the code in @file{coff/internal.h} and
66 @file{coffcode.h} if your version of coff is too wild.
68 You can verify that your new BFD backend works quite simply by
69 building @file{objdump} from the @file{binutils} directory,
70 and making sure that its version of what's going on and your
71 host system's idea (assuming it has the pretty standard coff
72 dump utility, usually called @code{att-dump} or just
73 @code{dump}) are the same. Then clean up your code, and send
74 what you've done to Cygnus. Then your stuff will be in the
75 next release, and you won't have to keep integrating it.
77 SUBSECTION
78 How the coff backend works
80 SUBSUBSECTION
81 File layout
83 The Coff backend is split into generic routines that are
84 applicable to any Coff target and routines that are specific
85 to a particular target. The target-specific routines are
86 further split into ones which are basically the same for all
87 Coff targets except that they use the external symbol format
88 or use different values for certain constants.
90 The generic routines are in @file{coffgen.c}. These routines
91 work for any Coff target. They use some hooks into the target
92 specific code; the hooks are in a @code{bfd_coff_backend_data}
93 structure, one of which exists for each target.
95 The essentially similar target-specific routines are in
96 @file{coffcode.h}. This header file includes executable C code.
97 The various Coff targets first include the appropriate Coff
98 header file, make any special defines that are needed, and
99 then include @file{coffcode.h}.
101 Some of the Coff targets then also have additional routines in
102 the target source file itself.
104 For example, @file{coff-i960.c} includes
105 @file{coff/internal.h} and @file{coff/i960.h}. It then
106 defines a few constants, such as @code{I960}, and includes
107 @file{coffcode.h}. Since the i960 has complex relocation
108 types, @file{coff-i960.c} also includes some code to
109 manipulate the i960 relocs. This code is not in
110 @file{coffcode.h} because it would not be used by any other
111 target.
113 SUBSUBSECTION
114 Bit twiddling
116 Each flavour of coff supported in BFD has its own header file
117 describing the external layout of the structures. There is also
118 an internal description of the coff layout, in
119 @file{coff/internal.h}. A major function of the
120 coff backend is swapping the bytes and twiddling the bits to
121 translate the external form of the structures into the normal
122 internal form. This is all performed in the
123 @code{bfd_swap}_@i{thing}_@i{direction} routines. Some
124 elements are different sizes between different versions of
125 coff; it is the duty of the coff version specific include file
126 to override the definitions of various packing routines in
127 @file{coffcode.h}. E.g., the size of line number entry in coff is
128 sometimes 16 bits, and sometimes 32 bits. @code{#define}ing
129 @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the
130 correct one. No doubt, some day someone will find a version of
131 coff which has a varying field size not catered to at the
132 moment. To port BFD, that person will have to add more @code{#defines}.
133 Three of the bit twiddling routines are exported to
134 @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in}
135 and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol
136 table on its own, but uses BFD to fix things up. More of the
137 bit twiddlers are exported for @code{gas};
138 @code{coff_swap_aux_out}, @code{coff_swap_sym_out},
139 @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out},
140 @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out},
141 @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track
142 of all the symbol table and reloc drudgery itself, thereby
143 saving the internal BFD overhead, but uses BFD to swap things
144 on the way out, making cross ports much safer. Doing so also
145 allows BFD (and thus the linker) to use the same header files
146 as @code{gas}, which makes one avenue to disaster disappear.
148 SUBSUBSECTION
149 Symbol reading
151 The simple canonical form for symbols used by BFD is not rich
152 enough to keep all the information available in a coff symbol
153 table. The back end gets around this problem by keeping the original
154 symbol table around, "behind the scenes".
156 When a symbol table is requested (through a call to
157 @code{bfd_canonicalize_symtab}), a request gets through to
158 @code{coff_get_normalized_symtab}. This reads the symbol table from
159 the coff file and swaps all the structures inside into the
160 internal form. It also fixes up all the pointers in the table
161 (represented in the file by offsets from the first symbol in
162 the table) into physical pointers to elements in the new
163 internal table. This involves some work since the meanings of
164 fields change depending upon context: a field that is a
165 pointer to another structure in the symbol table at one moment
166 may be the size in bytes of a structure at the next. Another
167 pass is made over the table. All symbols which mark file names
168 (<<C_FILE>> symbols) are modified so that the internal
169 string points to the value in the auxent (the real filename)
170 rather than the normal text associated with the symbol
171 (@code{".file"}).
173 At this time the symbol names are moved around. Coff stores
174 all symbols less than nine characters long physically
175 within the symbol table; longer strings are kept at the end of
176 the file in the string table. This pass moves all strings
177 into memory and replaces them with pointers to the strings.
179 The symbol table is massaged once again, this time to create
180 the canonical table used by the BFD application. Each symbol
181 is inspected in turn, and a decision made (using the
182 @code{sclass} field) about the various flags to set in the
183 @code{asymbol}. @xref{Symbols}. The generated canonical table
184 shares strings with the hidden internal symbol table.
186 Any linenumbers are read from the coff file too, and attached
187 to the symbols which own the functions the linenumbers belong to.
189 SUBSUBSECTION
190 Symbol writing
192 Writing a symbol to a coff file which didn't come from a coff
193 file will lose any debugging information. The @code{asymbol}
194 structure remembers the BFD from which the symbol was taken, and on
195 output the back end makes sure that the same destination target as
196 source target is present.
198 When the symbols have come from a coff file then all the
199 debugging information is preserved.
201 Symbol tables are provided for writing to the back end in a
202 vector of pointers to pointers. This allows applications like
203 the linker to accumulate and output large symbol tables
204 without having to do too much byte copying.
206 This function runs through the provided symbol table and
207 patches each symbol marked as a file place holder
208 (@code{C_FILE}) to point to the next file place holder in the
209 list. It also marks each @code{offset} field in the list with
210 the offset from the first symbol of the current symbol.
212 Another function of this procedure is to turn the canonical
213 value form of BFD into the form used by coff. Internally, BFD
214 expects symbol values to be offsets from a section base; so a
215 symbol physically at 0x120, but in a section starting at
216 0x100, would have the value 0x20. Coff expects symbols to
217 contain their final value, so symbols have their values
218 changed at this point to reflect their sum with their owning
219 section. This transformation uses the
220 <<output_section>> field of the @code{asymbol}'s
221 @code{asection} @xref{Sections}.
223 o <<coff_mangle_symbols>>
225 This routine runs though the provided symbol table and uses
226 the offsets generated by the previous pass and the pointers
227 generated when the symbol table was read in to create the
228 structured hierarchy required by coff. It changes each pointer
229 to a symbol into the index into the symbol table of the asymbol.
231 o <<coff_write_symbols>>
233 This routine runs through the symbol table and patches up the
234 symbols from their internal form into the coff way, calls the
235 bit twiddlers, and writes out the table to the file.
240 INTERNAL_DEFINITION
241 coff_symbol_type
243 DESCRIPTION
244 The hidden information for an <<asymbol>> is described in a
245 <<combined_entry_type>>:
247 CODE_FRAGMENT
249 .typedef struct coff_ptr_struct
251 . {* Remembers the offset from the first symbol in the file for
252 . this symbol. Generated by coff_renumber_symbols. *}
253 . unsigned int offset;
255 . {* Should the value of this symbol be renumbered. Used for
256 . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *}
257 . unsigned int fix_value : 1;
259 . {* Should the tag field of this symbol be renumbered.
260 . Created by coff_pointerize_aux. *}
261 . unsigned int fix_tag : 1;
263 . {* Should the endidx field of this symbol be renumbered.
264 . Created by coff_pointerize_aux. *}
265 . unsigned int fix_end : 1;
267 . {* Should the x_csect.x_scnlen field be renumbered.
268 . Created by coff_pointerize_aux. *}
269 . unsigned int fix_scnlen : 1;
271 . {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the
272 . index into the line number entries. Set by coff_slurp_symbol_table. *}
273 . unsigned int fix_line : 1;
275 . {* The container for the symbol structure as read and translated
276 . from the file. *}
277 . union
279 . union internal_auxent auxent;
280 . struct internal_syment syment;
281 . } u;
282 .} combined_entry_type;
285 .{* Each canonical asymbol really looks like this: *}
287 .typedef struct coff_symbol_struct
289 . {* The actual symbol which the rest of BFD works with *}
290 . asymbol symbol;
292 . {* A pointer to the hidden information for this symbol *}
293 . combined_entry_type *native;
295 . {* A pointer to the linenumber information for this symbol *}
296 . struct lineno_cache_entry *lineno;
298 . {* Have the line numbers been relocated yet ? *}
299 . bfd_boolean done_lineno;
300 .} coff_symbol_type;
304 #ifdef COFF_WITH_PE
305 #include "peicode.h"
306 #else
307 #include "coffswap.h"
308 #endif
310 #define STRING_SIZE_SIZE (4)
312 #define DOT_DEBUG ".debug"
313 #define GNU_LINKONCE_WI ".gnu.linkonce.wi."
315 static long sec_to_styp_flags
316 PARAMS ((const char *, flagword));
317 static bfd_boolean styp_to_sec_flags
318 PARAMS ((bfd *, PTR, const char *, asection *, flagword *));
319 static bfd_boolean coff_bad_format_hook
320 PARAMS ((bfd *, PTR));
321 static void coff_set_custom_section_alignment
322 PARAMS ((bfd *, asection *, const struct coff_section_alignment_entry *,
323 const unsigned int));
324 static bfd_boolean coff_new_section_hook
325 PARAMS ((bfd *, asection *));
326 static bfd_boolean coff_set_arch_mach_hook
327 PARAMS ((bfd *, PTR));
328 static bfd_boolean coff_write_relocs
329 PARAMS ((bfd *, int));
330 static bfd_boolean coff_set_flags
331 PARAMS ((bfd *, unsigned int *, unsigned short *));
332 static bfd_boolean coff_set_arch_mach
333 PARAMS ((bfd *, enum bfd_architecture, unsigned long)) ATTRIBUTE_UNUSED;
334 static bfd_boolean coff_compute_section_file_positions
335 PARAMS ((bfd *));
336 static bfd_boolean coff_write_object_contents
337 PARAMS ((bfd *)) ATTRIBUTE_UNUSED;
338 static bfd_boolean coff_set_section_contents
339 PARAMS ((bfd *, asection *, const PTR, file_ptr, bfd_size_type));
340 static PTR buy_and_read
341 PARAMS ((bfd *, file_ptr, bfd_size_type));
342 static bfd_boolean coff_slurp_line_table
343 PARAMS ((bfd *, asection *));
344 static bfd_boolean coff_slurp_symbol_table
345 PARAMS ((bfd *));
346 static enum coff_symbol_classification coff_classify_symbol
347 PARAMS ((bfd *, struct internal_syment *));
348 static bfd_boolean coff_slurp_reloc_table
349 PARAMS ((bfd *, asection *, asymbol **));
350 static long coff_canonicalize_reloc
351 PARAMS ((bfd *, asection *, arelent **, asymbol **));
352 #ifndef coff_mkobject_hook
353 static PTR coff_mkobject_hook
354 PARAMS ((bfd *, PTR, PTR));
355 #endif
356 #ifdef COFF_WITH_PE
357 static flagword handle_COMDAT
358 PARAMS ((bfd *, flagword, PTR, const char *, asection *));
359 #endif
360 #ifdef COFF_IMAGE_WITH_PE
361 static bfd_boolean coff_read_word
362 PARAMS ((bfd *, unsigned int *));
363 static unsigned int coff_compute_checksum
364 PARAMS ((bfd *));
365 static bfd_boolean coff_apply_checksum
366 PARAMS ((bfd *));
367 #endif
368 #ifdef TICOFF
369 static bfd_boolean ticoff0_bad_format_hook
370 PARAMS ((bfd *, PTR ));
371 static bfd_boolean ticoff1_bad_format_hook
372 PARAMS ((bfd *, PTR ));
373 #endif
375 /* void warning(); */
377 /* Return a word with STYP_* (scnhdr.s_flags) flags set to represent
378 the incoming SEC_* flags. The inverse of this function is
379 styp_to_sec_flags(). NOTE: If you add to/change this routine, you
380 should probably mirror the changes in styp_to_sec_flags(). */
382 #ifndef COFF_WITH_PE
384 /* Macros for setting debugging flags. */
385 #ifdef STYP_DEBUG
386 #define STYP_XCOFF_DEBUG STYP_DEBUG
387 #else
388 #define STYP_XCOFF_DEBUG STYP_INFO
389 #endif
391 #ifdef COFF_ALIGN_IN_S_FLAGS
392 #define STYP_DEBUG_INFO STYP_DSECT
393 #else
394 #define STYP_DEBUG_INFO STYP_INFO
395 #endif
397 static long
398 sec_to_styp_flags (sec_name, sec_flags)
399 const char *sec_name;
400 flagword sec_flags;
402 long styp_flags = 0;
404 if (!strcmp (sec_name, _TEXT))
406 styp_flags = STYP_TEXT;
408 else if (!strcmp (sec_name, _DATA))
410 styp_flags = STYP_DATA;
412 else if (!strcmp (sec_name, _BSS))
414 styp_flags = STYP_BSS;
415 #ifdef _COMMENT
417 else if (!strcmp (sec_name, _COMMENT))
419 styp_flags = STYP_INFO;
420 #endif /* _COMMENT */
421 #ifdef _LIB
423 else if (!strcmp (sec_name, _LIB))
425 styp_flags = STYP_LIB;
426 #endif /* _LIB */
427 #ifdef _LIT
429 else if (!strcmp (sec_name, _LIT))
431 styp_flags = STYP_LIT;
432 #endif /* _LIT */
434 else if (!strncmp (sec_name, DOT_DEBUG, sizeof (DOT_DEBUG) - 1))
436 /* Handle the XCOFF debug section and DWARF2 debug sections. */
437 if (!sec_name[6])
438 styp_flags = STYP_XCOFF_DEBUG;
439 else
440 styp_flags = STYP_DEBUG_INFO;
442 else if (!strncmp (sec_name, ".stab", 5))
444 styp_flags = STYP_DEBUG_INFO;
446 #ifdef COFF_LONG_SECTION_NAMES
447 else if (!strncmp (sec_name, GNU_LINKONCE_WI, sizeof (GNU_LINKONCE_WI) - 1))
449 styp_flags = STYP_DEBUG_INFO;
451 #endif
452 #ifdef RS6000COFF_C
453 else if (!strcmp (sec_name, _PAD))
455 styp_flags = STYP_PAD;
457 else if (!strcmp (sec_name, _LOADER))
459 styp_flags = STYP_LOADER;
461 else if (!strcmp (sec_name, _EXCEPT))
463 styp_flags = STYP_EXCEPT;
465 else if (!strcmp (sec_name, _TYPCHK))
467 styp_flags = STYP_TYPCHK;
469 #endif
470 /* Try and figure out what it should be */
471 else if (sec_flags & SEC_CODE)
473 styp_flags = STYP_TEXT;
475 else if (sec_flags & SEC_DATA)
477 styp_flags = STYP_DATA;
479 else if (sec_flags & SEC_READONLY)
481 #ifdef STYP_LIT /* 29k readonly text/data section */
482 styp_flags = STYP_LIT;
483 #else
484 styp_flags = STYP_TEXT;
485 #endif /* STYP_LIT */
487 else if (sec_flags & SEC_LOAD)
489 styp_flags = STYP_TEXT;
491 else if (sec_flags & SEC_ALLOC)
493 styp_flags = STYP_BSS;
496 #ifdef STYP_CLINK
497 if (sec_flags & SEC_CLINK)
498 styp_flags |= STYP_CLINK;
499 #endif
501 #ifdef STYP_BLOCK
502 if (sec_flags & SEC_BLOCK)
503 styp_flags |= STYP_BLOCK;
504 #endif
506 #ifdef STYP_NOLOAD
507 if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0)
508 styp_flags |= STYP_NOLOAD;
509 #endif
511 return styp_flags;
514 #else /* COFF_WITH_PE */
516 /* The PE version; see above for the general comments. The non-PE
517 case seems to be more guessing, and breaks PE format; specifically,
518 .rdata is readonly, but it sure ain't text. Really, all this
519 should be set up properly in gas (or whatever assembler is in use),
520 and honor whatever objcopy/strip, etc. sent us as input. */
522 static long
523 sec_to_styp_flags (sec_name, sec_flags)
524 const char *sec_name;
525 flagword sec_flags;
527 long styp_flags = 0;
529 /* caution: there are at least three groups of symbols that have
530 very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*.
531 SEC_* are the BFD internal flags, used for generic BFD
532 information. STYP_* are the COFF section flags which appear in
533 COFF files. IMAGE_SCN_* are the PE section flags which appear in
534 PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap,
535 but there are more IMAGE_SCN_* flags. */
537 /* FIXME: There is no gas syntax to specify the debug section flag. */
538 if (strncmp (sec_name, DOT_DEBUG, sizeof (DOT_DEBUG) - 1) == 0
539 || strncmp (sec_name, GNU_LINKONCE_WI, sizeof (GNU_LINKONCE_WI) - 1) == 0)
540 sec_flags = SEC_READONLY | SEC_DEBUGGING;
542 /* skip LOAD */
543 /* READONLY later */
544 /* skip RELOC */
545 if ((sec_flags & SEC_CODE) != 0)
546 styp_flags |= IMAGE_SCN_CNT_CODE;
547 if ((sec_flags & SEC_DATA) != 0)
548 styp_flags |= IMAGE_SCN_CNT_INITIALIZED_DATA;
549 if ((sec_flags & SEC_ALLOC) != 0 && (sec_flags & SEC_LOAD) == 0)
550 styp_flags |= IMAGE_SCN_CNT_UNINITIALIZED_DATA; /* ==STYP_BSS */
551 /* skip ROM */
552 /* skip constRUCTOR */
553 /* skip CONTENTS */
554 #ifdef STYP_NOLOAD
555 if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0)
556 styp_flags |= STYP_NOLOAD;
557 #endif
558 if ((sec_flags & SEC_IS_COMMON) != 0)
559 styp_flags |= IMAGE_SCN_LNK_COMDAT;
560 if ((sec_flags & SEC_DEBUGGING) != 0)
561 styp_flags |= IMAGE_SCN_MEM_DISCARDABLE;
562 if ((sec_flags & SEC_EXCLUDE) != 0)
563 styp_flags |= IMAGE_SCN_LNK_REMOVE;
564 if ((sec_flags & SEC_NEVER_LOAD) != 0)
565 styp_flags |= IMAGE_SCN_LNK_REMOVE;
566 /* skip IN_MEMORY */
567 /* skip SORT */
568 if (sec_flags & SEC_LINK_ONCE)
569 styp_flags |= IMAGE_SCN_LNK_COMDAT;
570 /* skip LINK_DUPLICATES */
571 /* skip LINKER_CREATED */
573 /* For now, the read/write bits are mapped onto SEC_READONLY, even
574 though the semantics don't quite match. The bits from the input
575 are retained in pei_section_data(abfd, section)->pe_flags. */
577 styp_flags |= IMAGE_SCN_MEM_READ; /* Always readable. */
578 if ((sec_flags & SEC_READONLY) == 0)
579 styp_flags |= IMAGE_SCN_MEM_WRITE; /* Invert READONLY for write. */
580 if (sec_flags & SEC_CODE)
581 styp_flags |= IMAGE_SCN_MEM_EXECUTE; /* CODE->EXECUTE. */
582 if (sec_flags & SEC_SHARED)
583 styp_flags |= IMAGE_SCN_MEM_SHARED; /* Shared remains meaningful. */
585 return styp_flags;
588 #endif /* COFF_WITH_PE */
590 /* Return a word with SEC_* flags set to represent the incoming STYP_*
591 flags (from scnhdr.s_flags). The inverse of this function is
592 sec_to_styp_flags(). NOTE: If you add to/change this routine, you
593 should probably mirror the changes in sec_to_styp_flags(). */
595 #ifndef COFF_WITH_PE
597 static bfd_boolean
598 styp_to_sec_flags (abfd, hdr, name, section, flags_ptr)
599 bfd *abfd ATTRIBUTE_UNUSED;
600 PTR hdr;
601 const char *name;
602 asection *section ATTRIBUTE_UNUSED;
603 flagword *flags_ptr;
605 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
606 long styp_flags = internal_s->s_flags;
607 flagword sec_flags = 0;
609 #ifdef STYP_BLOCK
610 if (styp_flags & STYP_BLOCK)
611 sec_flags |= SEC_BLOCK;
612 #endif
614 #ifdef STYP_CLINK
615 if (styp_flags & STYP_CLINK)
616 sec_flags |= SEC_CLINK;
617 #endif
619 #ifdef STYP_NOLOAD
620 if (styp_flags & STYP_NOLOAD)
621 sec_flags |= SEC_NEVER_LOAD;
622 #endif /* STYP_NOLOAD */
624 /* For 386 COFF, at least, an unloadable text or data section is
625 actually a shared library section. */
626 if (styp_flags & STYP_TEXT)
628 if (sec_flags & SEC_NEVER_LOAD)
629 sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY;
630 else
631 sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
633 else if (styp_flags & STYP_DATA)
635 if (sec_flags & SEC_NEVER_LOAD)
636 sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
637 else
638 sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
640 else if (styp_flags & STYP_BSS)
642 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
643 if (sec_flags & SEC_NEVER_LOAD)
644 sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY;
645 else
646 #endif
647 sec_flags |= SEC_ALLOC;
649 else if (styp_flags & STYP_INFO)
651 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
652 defined. coff_compute_section_file_positions uses
653 COFF_PAGE_SIZE to ensure that the low order bits of the
654 section VMA and the file offset match. If we don't know
655 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
656 and demand page loading of the file will fail. */
657 #if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS)
658 sec_flags |= SEC_DEBUGGING;
659 #endif
661 else if (styp_flags & STYP_PAD)
662 sec_flags = 0;
663 else if (strcmp (name, _TEXT) == 0)
665 if (sec_flags & SEC_NEVER_LOAD)
666 sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY;
667 else
668 sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
670 else if (strcmp (name, _DATA) == 0)
672 if (sec_flags & SEC_NEVER_LOAD)
673 sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
674 else
675 sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
677 else if (strcmp (name, _BSS) == 0)
679 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
680 if (sec_flags & SEC_NEVER_LOAD)
681 sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY;
682 else
683 #endif
684 sec_flags |= SEC_ALLOC;
686 else if (strncmp (name, DOT_DEBUG, sizeof (DOT_DEBUG) - 1) == 0
687 #ifdef _COMMENT
688 || strcmp (name, _COMMENT) == 0
689 #endif
690 #ifdef COFF_LONG_SECTION_NAMES
691 || strncmp (name, GNU_LINKONCE_WI, sizeof (GNU_LINKONCE_WI) - 1) == 0
692 #endif
693 || strncmp (name, ".stab", 5) == 0)
695 #ifdef COFF_PAGE_SIZE
696 sec_flags |= SEC_DEBUGGING;
697 #endif
699 #ifdef _LIB
700 else if (strcmp (name, _LIB) == 0)
702 #endif
703 #ifdef _LIT
704 else if (strcmp (name, _LIT) == 0)
705 sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY;
706 #endif
707 else
708 sec_flags |= SEC_ALLOC | SEC_LOAD;
710 #ifdef STYP_LIT /* A29k readonly text/data section type. */
711 if ((styp_flags & STYP_LIT) == STYP_LIT)
712 sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY);
713 #endif /* STYP_LIT */
715 #ifdef STYP_OTHER_LOAD /* Other loaded sections. */
716 if (styp_flags & STYP_OTHER_LOAD)
717 sec_flags = (SEC_LOAD | SEC_ALLOC);
718 #endif /* STYP_SDATA */
720 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
721 /* As a GNU extension, if the name begins with .gnu.linkonce, we
722 only link a single copy of the section. This is used to support
723 g++. g++ will emit each template expansion in its own section.
724 The symbols will be defined as weak, so that multiple definitions
725 are permitted. The GNU linker extension is to actually discard
726 all but one of the sections. */
727 if (strncmp (name, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0)
728 sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
729 #endif
731 if (flags_ptr == NULL)
732 return FALSE;
734 * flags_ptr = sec_flags;
735 return TRUE;
738 #else /* COFF_WITH_PE */
740 static flagword
741 handle_COMDAT (abfd, sec_flags, hdr, name, section)
742 bfd * abfd;
743 flagword sec_flags;
744 PTR hdr;
745 const char *name;
746 asection *section;
748 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
749 bfd_byte *esymstart, *esym, *esymend;
750 int seen_state = 0;
751 char *target_name = NULL;
753 sec_flags |= SEC_LINK_ONCE;
755 /* Unfortunately, the PE format stores essential information in
756 the symbol table, of all places. We need to extract that
757 information now, so that objdump and the linker will know how
758 to handle the section without worrying about the symbols. We
759 can't call slurp_symtab, because the linker doesn't want the
760 swapped symbols. */
762 /* COMDAT sections are special. The first symbol is the section
763 symbol, which tells what kind of COMDAT section it is. The
764 second symbol is the "comdat symbol" - the one with the
765 unique name. GNU uses the section symbol for the unique
766 name; MS uses ".text" for every comdat section. Sigh. - DJ */
768 /* This is not mirrored in sec_to_styp_flags(), but there
769 doesn't seem to be a need to, either, and it would at best be
770 rather messy. */
772 if (! _bfd_coff_get_external_symbols (abfd))
773 return sec_flags;
775 esymstart = esym = (bfd_byte *) obj_coff_external_syms (abfd);
776 esymend = esym + obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd);
778 while (esym < esymend)
780 struct internal_syment isym;
781 char buf[SYMNMLEN + 1];
782 const char *symname;
784 bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &isym);
786 if (sizeof (internal_s->s_name) > SYMNMLEN)
788 /* This case implies that the matching
789 symbol name will be in the string table. */
790 abort ();
793 if (isym.n_scnum == section->target_index)
795 /* According to the MSVC documentation, the first
796 TWO entries with the section # are both of
797 interest to us. The first one is the "section
798 symbol" (section name). The second is the comdat
799 symbol name. Here, we've found the first
800 qualifying entry; we distinguish it from the
801 second with a state flag.
803 In the case of gas-generated (at least until that
804 is fixed) .o files, it isn't necessarily the
805 second one. It may be some other later symbol.
807 Since gas also doesn't follow MS conventions and
808 emits the section similar to .text$<name>, where
809 <something> is the name we're looking for, we
810 distinguish the two as follows:
812 If the section name is simply a section name (no
813 $) we presume it's MS-generated, and look at
814 precisely the second symbol for the comdat name.
815 If the section name has a $, we assume it's
816 gas-generated, and look for <something> (whatever
817 follows the $) as the comdat symbol. */
819 /* All 3 branches use this. */
820 symname = _bfd_coff_internal_syment_name (abfd, &isym, buf);
822 if (symname == NULL)
823 abort ();
825 switch (seen_state)
827 case 0:
829 /* The first time we've seen the symbol. */
830 union internal_auxent aux;
832 seen_state = 1;
834 /* If it isn't the stuff we're expecting, die;
835 The MS documentation is vague, but it
836 appears that the second entry serves BOTH
837 as the comdat symbol and the defining
838 symbol record (either C_STAT or C_EXT,
839 possibly with an aux entry with debug
840 information if it's a function.) It
841 appears the only way to find the second one
842 is to count. (On Intel, they appear to be
843 adjacent, but on Alpha, they have been
844 found separated.)
846 Here, we think we've found the first one,
847 but there's some checking we can do to be
848 sure. */
850 if (! (isym.n_sclass == C_STAT
851 && isym.n_type == T_NULL
852 && isym.n_value == 0))
853 abort ();
855 /* FIXME LATER: MSVC generates section names
856 like .text for comdats. Gas generates
857 names like .text$foo__Fv (in the case of a
858 function). See comment above for more. */
860 if (strcmp (name, symname) != 0)
861 abort ();
863 /* This is the section symbol. */
864 bfd_coff_swap_aux_in (abfd, (PTR) (esym + bfd_coff_symesz (abfd)),
865 isym.n_type, isym.n_sclass,
866 0, isym.n_numaux, (PTR) &aux);
868 target_name = strchr (name, '$');
869 if (target_name != NULL)
871 /* Gas mode. */
872 seen_state = 2;
873 /* Skip the `$'. */
874 target_name += 1;
877 /* FIXME: Microsoft uses NODUPLICATES and
878 ASSOCIATIVE, but gnu uses ANY and
879 SAME_SIZE. Unfortunately, gnu doesn't do
880 the comdat symbols right. So, until we can
881 fix it to do the right thing, we are
882 temporarily disabling comdats for the MS
883 types (they're used in DLLs and C++, but we
884 don't support *their* C++ libraries anyway
885 - DJ. */
887 /* Cygwin does not follow the MS style, and
888 uses ANY and SAME_SIZE where NODUPLICATES
889 and ASSOCIATIVE should be used. For
890 Interix, we just do the right thing up
891 front. */
893 switch (aux.x_scn.x_comdat)
895 case IMAGE_COMDAT_SELECT_NODUPLICATES:
896 #ifdef STRICT_PE_FORMAT
897 sec_flags |= SEC_LINK_DUPLICATES_ONE_ONLY;
898 #else
899 sec_flags &= ~SEC_LINK_ONCE;
900 #endif
901 break;
903 case IMAGE_COMDAT_SELECT_ANY:
904 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
905 break;
907 case IMAGE_COMDAT_SELECT_SAME_SIZE:
908 sec_flags |= SEC_LINK_DUPLICATES_SAME_SIZE;
909 break;
911 case IMAGE_COMDAT_SELECT_EXACT_MATCH:
912 /* Not yet fully implemented ??? */
913 sec_flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS;
914 break;
916 /* debug$S gets this case; other
917 implications ??? */
919 /* There may be no symbol... we'll search
920 the whole table... Is this the right
921 place to play this game? Or should we do
922 it when reading it in. */
923 case IMAGE_COMDAT_SELECT_ASSOCIATIVE:
924 #ifdef STRICT_PE_FORMAT
925 /* FIXME: This is not currently implemented. */
926 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
927 #else
928 sec_flags &= ~SEC_LINK_ONCE;
929 #endif
930 break;
932 default: /* 0 means "no symbol" */
933 /* debug$F gets this case; other
934 implications ??? */
935 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
936 break;
939 break;
941 case 2:
942 /* Gas mode: the first matching on partial name. */
944 #ifndef TARGET_UNDERSCORE
945 #define TARGET_UNDERSCORE 0
946 #endif
947 /* Is this the name we're looking for ? */
948 if (strcmp (target_name,
949 symname + (TARGET_UNDERSCORE ? 1 : 0)) != 0)
951 /* Not the name we're looking for */
952 esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd);
953 continue;
955 /* Fall through. */
956 case 1:
957 /* MSVC mode: the lexically second symbol (or
958 drop through from the above). */
960 char *newname;
961 bfd_size_type amt;
963 /* This must the second symbol with the
964 section #. It is the actual symbol name.
965 Intel puts the two adjacent, but Alpha (at
966 least) spreads them out. */
968 amt = sizeof (struct bfd_comdat_info);
969 section->comdat = bfd_alloc (abfd, amt);
970 if (section->comdat == NULL)
971 abort ();
973 section->comdat->symbol =
974 (esym - esymstart) / bfd_coff_symesz (abfd);
976 amt = strlen (symname) + 1;
977 newname = bfd_alloc (abfd, amt);
978 if (newname == NULL)
979 abort ();
981 strcpy (newname, symname);
982 section->comdat->name = newname;
985 goto breakloop;
989 esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd);
992 breakloop:
993 return sec_flags;
997 /* The PE version; see above for the general comments.
999 Since to set the SEC_LINK_ONCE and associated flags, we have to
1000 look at the symbol table anyway, we return the symbol table index
1001 of the symbol being used as the COMDAT symbol. This is admittedly
1002 ugly, but there's really nowhere else that we have access to the
1003 required information. FIXME: Is the COMDAT symbol index used for
1004 any purpose other than objdump? */
1006 static bfd_boolean
1007 styp_to_sec_flags (abfd, hdr, name, section, flags_ptr)
1008 bfd *abfd;
1009 PTR hdr;
1010 const char *name;
1011 asection *section;
1012 flagword *flags_ptr;
1014 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
1015 long styp_flags = internal_s->s_flags;
1016 flagword sec_flags;
1017 bfd_boolean result = TRUE;
1019 /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */
1020 sec_flags = SEC_READONLY;
1022 /* Process each flag bit in styp_flags in turn. */
1023 while (styp_flags)
1025 long flag = styp_flags & - styp_flags;
1026 char * unhandled = NULL;
1028 styp_flags &= ~ flag;
1030 /* We infer from the distinct read/write/execute bits the settings
1031 of some of the bfd flags; the actual values, should we need them,
1032 are also in pei_section_data (abfd, section)->pe_flags. */
1034 switch (flag)
1036 case STYP_DSECT:
1037 unhandled = "STYP_DSECT";
1038 break;
1039 case STYP_GROUP:
1040 unhandled = "STYP_GROUP";
1041 break;
1042 case STYP_COPY:
1043 unhandled = "STYP_COPY";
1044 break;
1045 case STYP_OVER:
1046 unhandled = "STYP_OVER";
1047 break;
1048 #ifdef SEC_NEVER_LOAD
1049 case STYP_NOLOAD:
1050 sec_flags |= SEC_NEVER_LOAD;
1051 break;
1052 #endif
1053 case IMAGE_SCN_MEM_READ:
1054 /* Ignored, assume it always to be true. */
1055 break;
1056 case IMAGE_SCN_TYPE_NO_PAD:
1057 /* Skip. */
1058 break;
1059 case IMAGE_SCN_LNK_OTHER:
1060 unhandled = "IMAGE_SCN_LNK_OTHER";
1061 break;
1062 case IMAGE_SCN_MEM_NOT_CACHED:
1063 unhandled = "IMAGE_SCN_MEM_NOT_CACHED";
1064 break;
1065 case IMAGE_SCN_MEM_NOT_PAGED:
1066 unhandled = "IMAGE_SCN_MEM_NOT_PAGED";
1067 break;
1068 case IMAGE_SCN_MEM_EXECUTE:
1069 sec_flags |= SEC_CODE;
1070 break;
1071 case IMAGE_SCN_MEM_WRITE:
1072 sec_flags &= ~ SEC_READONLY;
1073 break;
1074 case IMAGE_SCN_MEM_DISCARDABLE:
1075 /* The MS PE spec sets the DISCARDABLE flag on .reloc sections
1076 but we do not want them to be labelled as debug section, since
1077 then strip would remove them. */
1078 if (strncmp (name, ".reloc", sizeof ".reloc" - 1) != 0)
1079 sec_flags |= SEC_DEBUGGING;
1080 break;
1081 case IMAGE_SCN_MEM_SHARED:
1082 sec_flags |= SEC_SHARED;
1083 break;
1084 case IMAGE_SCN_LNK_REMOVE:
1085 sec_flags |= SEC_EXCLUDE;
1086 break;
1087 case IMAGE_SCN_CNT_CODE:
1088 sec_flags |= SEC_CODE | SEC_ALLOC | SEC_LOAD;
1089 break;
1090 case IMAGE_SCN_CNT_INITIALIZED_DATA:
1091 sec_flags |= SEC_DATA | SEC_ALLOC | SEC_LOAD;
1092 break;
1093 case IMAGE_SCN_CNT_UNINITIALIZED_DATA:
1094 sec_flags |= SEC_ALLOC;
1095 break;
1096 case IMAGE_SCN_LNK_INFO:
1097 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
1098 defined. coff_compute_section_file_positions uses
1099 COFF_PAGE_SIZE to ensure that the low order bits of the
1100 section VMA and the file offset match. If we don't know
1101 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
1102 and demand page loading of the file will fail. */
1103 #ifdef COFF_PAGE_SIZE
1104 sec_flags |= SEC_DEBUGGING;
1105 #endif
1106 break;
1107 case IMAGE_SCN_LNK_COMDAT:
1108 /* COMDAT gets very special treatment. */
1109 sec_flags = handle_COMDAT (abfd, sec_flags, hdr, name, section);
1110 break;
1111 default:
1112 /* Silently ignore for now. */
1113 break;
1116 /* If the section flag was not handled, report it here. */
1117 if (unhandled != NULL)
1119 (*_bfd_error_handler)
1120 (_("%s (%s): Section flag %s (0x%x) ignored"),
1121 bfd_archive_filename (abfd), name, unhandled, flag);
1122 result = FALSE;
1126 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
1127 /* As a GNU extension, if the name begins with .gnu.linkonce, we
1128 only link a single copy of the section. This is used to support
1129 g++. g++ will emit each template expansion in its own section.
1130 The symbols will be defined as weak, so that multiple definitions
1131 are permitted. The GNU linker extension is to actually discard
1132 all but one of the sections. */
1133 if (strncmp (name, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0)
1134 sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
1135 #endif
1137 if (flags_ptr)
1138 * flags_ptr = sec_flags;
1140 return result;
1143 #endif /* COFF_WITH_PE */
1145 #define get_index(symbol) ((symbol)->udata.i)
1148 INTERNAL_DEFINITION
1149 bfd_coff_backend_data
1151 CODE_FRAGMENT
1153 .{* COFF symbol classifications. *}
1155 .enum coff_symbol_classification
1157 . {* Global symbol. *}
1158 . COFF_SYMBOL_GLOBAL,
1159 . {* Common symbol. *}
1160 . COFF_SYMBOL_COMMON,
1161 . {* Undefined symbol. *}
1162 . COFF_SYMBOL_UNDEFINED,
1163 . {* Local symbol. *}
1164 . COFF_SYMBOL_LOCAL,
1165 . {* PE section symbol. *}
1166 . COFF_SYMBOL_PE_SECTION
1169 Special entry points for gdb to swap in coff symbol table parts:
1170 .typedef struct
1172 . void (*_bfd_coff_swap_aux_in)
1173 . PARAMS ((bfd *, PTR, int, int, int, int, PTR));
1175 . void (*_bfd_coff_swap_sym_in)
1176 . PARAMS ((bfd *, PTR, PTR));
1178 . void (*_bfd_coff_swap_lineno_in)
1179 . PARAMS ((bfd *, PTR, PTR));
1181 . unsigned int (*_bfd_coff_swap_aux_out)
1182 . PARAMS ((bfd *, PTR, int, int, int, int, PTR));
1184 . unsigned int (*_bfd_coff_swap_sym_out)
1185 . PARAMS ((bfd *, PTR, PTR));
1187 . unsigned int (*_bfd_coff_swap_lineno_out)
1188 . PARAMS ((bfd *, PTR, PTR));
1190 . unsigned int (*_bfd_coff_swap_reloc_out)
1191 . PARAMS ((bfd *, PTR, PTR));
1193 . unsigned int (*_bfd_coff_swap_filehdr_out)
1194 . PARAMS ((bfd *, PTR, PTR));
1196 . unsigned int (*_bfd_coff_swap_aouthdr_out)
1197 . PARAMS ((bfd *, PTR, PTR));
1199 . unsigned int (*_bfd_coff_swap_scnhdr_out)
1200 . PARAMS ((bfd *, PTR, PTR));
1202 . unsigned int _bfd_filhsz;
1203 . unsigned int _bfd_aoutsz;
1204 . unsigned int _bfd_scnhsz;
1205 . unsigned int _bfd_symesz;
1206 . unsigned int _bfd_auxesz;
1207 . unsigned int _bfd_relsz;
1208 . unsigned int _bfd_linesz;
1209 . unsigned int _bfd_filnmlen;
1210 . bfd_boolean _bfd_coff_long_filenames;
1211 . bfd_boolean _bfd_coff_long_section_names;
1212 . unsigned int _bfd_coff_default_section_alignment_power;
1213 . bfd_boolean _bfd_coff_force_symnames_in_strings;
1214 . unsigned int _bfd_coff_debug_string_prefix_length;
1216 . void (*_bfd_coff_swap_filehdr_in)
1217 . PARAMS ((bfd *, PTR, PTR));
1219 . void (*_bfd_coff_swap_aouthdr_in)
1220 . PARAMS ((bfd *, PTR, PTR));
1222 . void (*_bfd_coff_swap_scnhdr_in)
1223 . PARAMS ((bfd *, PTR, PTR));
1225 . void (*_bfd_coff_swap_reloc_in)
1226 . PARAMS ((bfd *abfd, PTR, PTR));
1228 . bfd_boolean (*_bfd_coff_bad_format_hook)
1229 . PARAMS ((bfd *, PTR));
1231 . bfd_boolean (*_bfd_coff_set_arch_mach_hook)
1232 . PARAMS ((bfd *, PTR));
1234 . PTR (*_bfd_coff_mkobject_hook)
1235 . PARAMS ((bfd *, PTR, PTR));
1237 . bfd_boolean (*_bfd_styp_to_sec_flags_hook)
1238 . PARAMS ((bfd *, PTR, const char *, asection *, flagword *));
1240 . void (*_bfd_set_alignment_hook)
1241 . PARAMS ((bfd *, asection *, PTR));
1243 . bfd_boolean (*_bfd_coff_slurp_symbol_table)
1244 . PARAMS ((bfd *));
1246 . bfd_boolean (*_bfd_coff_symname_in_debug)
1247 . PARAMS ((bfd *, struct internal_syment *));
1249 . bfd_boolean (*_bfd_coff_pointerize_aux_hook)
1250 . PARAMS ((bfd *, combined_entry_type *, combined_entry_type *,
1251 . unsigned int, combined_entry_type *));
1253 . bfd_boolean (*_bfd_coff_print_aux)
1254 . PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *,
1255 . combined_entry_type *, unsigned int));
1257 . void (*_bfd_coff_reloc16_extra_cases)
1258 . PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
1259 . bfd_byte *, unsigned int *, unsigned int *));
1261 . int (*_bfd_coff_reloc16_estimate)
1262 . PARAMS ((bfd *, asection *, arelent *, unsigned int,
1263 . struct bfd_link_info *));
1265 . enum coff_symbol_classification (*_bfd_coff_classify_symbol)
1266 . PARAMS ((bfd *, struct internal_syment *));
1268 . bfd_boolean (*_bfd_coff_compute_section_file_positions)
1269 . PARAMS ((bfd *));
1271 . bfd_boolean (*_bfd_coff_start_final_link)
1272 . PARAMS ((bfd *, struct bfd_link_info *));
1274 . bfd_boolean (*_bfd_coff_relocate_section)
1275 . PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
1276 . struct internal_reloc *, struct internal_syment *, asection **));
1278 . reloc_howto_type *(*_bfd_coff_rtype_to_howto)
1279 . PARAMS ((bfd *, asection *, struct internal_reloc *,
1280 . struct coff_link_hash_entry *, struct internal_syment *,
1281 . bfd_vma *));
1283 . bfd_boolean (*_bfd_coff_adjust_symndx)
1284 . PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *,
1285 . struct internal_reloc *, bfd_boolean *));
1287 . bfd_boolean (*_bfd_coff_link_add_one_symbol)
1288 . PARAMS ((struct bfd_link_info *, bfd *, const char *, flagword,
1289 . asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
1290 . struct bfd_link_hash_entry **));
1292 . bfd_boolean (*_bfd_coff_link_output_has_begun)
1293 . PARAMS ((bfd *, struct coff_final_link_info *));
1295 . bfd_boolean (*_bfd_coff_final_link_postscript)
1296 . PARAMS ((bfd *, struct coff_final_link_info *));
1298 .} bfd_coff_backend_data;
1300 .#define coff_backend_info(abfd) \
1301 . ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
1303 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
1304 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
1306 .#define bfd_coff_swap_sym_in(a,e,i) \
1307 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
1309 .#define bfd_coff_swap_lineno_in(a,e,i) \
1310 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
1312 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
1313 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
1315 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
1316 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
1318 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
1319 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
1321 .#define bfd_coff_swap_sym_out(abfd, i,o) \
1322 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
1324 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
1325 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
1327 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
1328 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
1330 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
1331 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
1333 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1334 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1335 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1336 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1337 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1338 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1339 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
1340 .#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
1341 .#define bfd_coff_long_filenames(abfd) \
1342 . (coff_backend_info (abfd)->_bfd_coff_long_filenames)
1343 .#define bfd_coff_long_section_names(abfd) \
1344 . (coff_backend_info (abfd)->_bfd_coff_long_section_names)
1345 .#define bfd_coff_default_section_alignment_power(abfd) \
1346 . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
1347 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
1348 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
1350 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
1351 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
1353 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
1354 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
1356 .#define bfd_coff_swap_reloc_in(abfd, i, o) \
1357 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
1359 .#define bfd_coff_bad_format_hook(abfd, filehdr) \
1360 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
1362 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
1363 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
1364 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
1365 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\
1366 . (abfd, filehdr, aouthdr))
1368 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
1369 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1370 . (abfd, scnhdr, name, section, flags_ptr))
1372 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
1373 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
1375 .#define bfd_coff_slurp_symbol_table(abfd)\
1376 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
1378 .#define bfd_coff_symname_in_debug(abfd, sym)\
1379 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
1381 .#define bfd_coff_force_symnames_in_strings(abfd)\
1382 . (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
1384 .#define bfd_coff_debug_string_prefix_length(abfd)\
1385 . (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
1387 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
1388 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1389 . (abfd, file, base, symbol, aux, indaux))
1391 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\
1392 . reloc, data, src_ptr, dst_ptr)\
1393 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1394 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
1396 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
1397 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1398 . (abfd, section, reloc, shrink, link_info))
1400 .#define bfd_coff_classify_symbol(abfd, sym)\
1401 . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1402 . (abfd, sym))
1404 .#define bfd_coff_compute_section_file_positions(abfd)\
1405 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1406 . (abfd))
1408 .#define bfd_coff_start_final_link(obfd, info)\
1409 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1410 . (obfd, info))
1411 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
1412 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1413 . (obfd, info, ibfd, o, con, rel, isyms, secs))
1414 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
1415 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1416 . (abfd, sec, rel, h, sym, addendp))
1417 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
1418 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1419 . (obfd, info, ibfd, sec, rel, adjustedp))
1420 .#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\
1421 . value, string, cp, coll, hashp)\
1422 . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1423 . (info, abfd, name, flags, section, value, string, cp, coll, hashp))
1425 .#define bfd_coff_link_output_has_begun(a,p) \
1426 . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a,p))
1427 .#define bfd_coff_final_link_postscript(a,p) \
1428 . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a,p))
1432 /* See whether the magic number matches. */
1434 static bfd_boolean
1435 coff_bad_format_hook (abfd, filehdr)
1436 bfd * abfd ATTRIBUTE_UNUSED;
1437 PTR filehdr;
1439 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1441 if (BADMAG (*internal_f))
1442 return FALSE;
1444 /* If the optional header is NULL or not the correct size then
1445 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1446 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1447 optional header is of a different size.
1449 But the mips keeps extra stuff in it's opthdr, so dont check
1450 when doing that. */
1452 #if defined(M88) || defined(I960)
1453 if (internal_f->f_opthdr != 0 && bfd_coff_aoutsz (abfd) != internal_f->f_opthdr)
1454 return FALSE;
1455 #endif
1457 return TRUE;
1460 #ifdef TICOFF
1461 static bfd_boolean
1462 ticoff0_bad_format_hook (abfd, filehdr)
1463 bfd *abfd ATTRIBUTE_UNUSED;
1464 PTR filehdr;
1466 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1468 if (COFF0_BADMAG (*internal_f))
1469 return FALSE;
1471 return TRUE;
1473 #endif
1475 #ifdef TICOFF
1476 static bfd_boolean
1477 ticoff1_bad_format_hook (abfd, filehdr)
1478 bfd *abfd ATTRIBUTE_UNUSED;
1479 PTR filehdr;
1481 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1483 if (COFF1_BADMAG (*internal_f))
1484 return FALSE;
1486 return TRUE;
1488 #endif
1490 /* Check whether this section uses an alignment other than the
1491 default. */
1493 static void
1494 coff_set_custom_section_alignment (abfd, section, alignment_table, table_size)
1495 bfd *abfd ATTRIBUTE_UNUSED;
1496 asection *section;
1497 const struct coff_section_alignment_entry *alignment_table;
1498 const unsigned int table_size;
1500 const unsigned int default_alignment = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
1501 unsigned int i;
1503 for (i = 0; i < table_size; ++i)
1505 const char *secname = bfd_get_section_name (abfd, section);
1507 if (alignment_table[i].comparison_length == (unsigned int) -1
1508 ? strcmp (alignment_table[i].name, secname) == 0
1509 : strncmp (alignment_table[i].name, secname,
1510 alignment_table[i].comparison_length) == 0)
1511 break;
1513 if (i >= table_size)
1514 return;
1516 if (alignment_table[i].default_alignment_min != COFF_ALIGNMENT_FIELD_EMPTY
1517 && default_alignment < alignment_table[i].default_alignment_min)
1518 return;
1520 if (alignment_table[i].default_alignment_max != COFF_ALIGNMENT_FIELD_EMPTY
1521 #if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0
1522 && default_alignment > alignment_table[i].default_alignment_max
1523 #endif
1525 return;
1527 section->alignment_power = alignment_table[i].alignment_power;
1530 /* Custom section alignment records. */
1532 static const struct coff_section_alignment_entry
1533 coff_section_alignment_table[] =
1535 #ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1536 COFF_SECTION_ALIGNMENT_ENTRIES,
1537 #endif
1538 /* There must not be any gaps between .stabstr sections. */
1539 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1540 1, COFF_ALIGNMENT_FIELD_EMPTY, 0 },
1541 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1542 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1543 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 },
1544 /* Similarly for the .ctors and .dtors sections. */
1545 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1546 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 },
1547 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1548 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 }
1551 static const unsigned int coff_section_alignment_table_size =
1552 sizeof coff_section_alignment_table / sizeof coff_section_alignment_table[0];
1554 /* Initialize a section structure with information peculiar to this
1555 particular implementation of COFF. */
1557 static bfd_boolean
1558 coff_new_section_hook (abfd, section)
1559 bfd * abfd;
1560 asection * section;
1562 combined_entry_type *native;
1563 bfd_size_type amt;
1565 section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
1567 #ifdef RS6000COFF_C
1568 if (bfd_xcoff_text_align_power (abfd) != 0
1569 && strcmp (bfd_get_section_name (abfd, section), ".text") == 0)
1570 section->alignment_power = bfd_xcoff_text_align_power (abfd);
1571 if (bfd_xcoff_data_align_power (abfd) != 0
1572 && strcmp (bfd_get_section_name (abfd, section), ".data") == 0)
1573 section->alignment_power = bfd_xcoff_data_align_power (abfd);
1574 #endif
1576 /* Allocate aux records for section symbols, to store size and
1577 related info.
1579 @@ The 10 is a guess at a plausible maximum number of aux entries
1580 (but shouldn't be a constant). */
1581 amt = sizeof (combined_entry_type) * 10;
1582 native = (combined_entry_type *) bfd_zalloc (abfd, amt);
1583 if (native == NULL)
1584 return FALSE;
1586 /* We don't need to set up n_name, n_value, or n_scnum in the native
1587 symbol information, since they'll be overridden by the BFD symbol
1588 anyhow. However, we do need to set the type and storage class,
1589 in case this symbol winds up getting written out. The value 0
1590 for n_numaux is already correct. */
1592 native->u.syment.n_type = T_NULL;
1593 native->u.syment.n_sclass = C_STAT;
1595 coffsymbol (section->symbol)->native = native;
1597 coff_set_custom_section_alignment (abfd, section,
1598 coff_section_alignment_table,
1599 coff_section_alignment_table_size);
1601 return TRUE;
1604 #ifdef COFF_ALIGN_IN_SECTION_HEADER
1606 /* Set the alignment of a BFD section. */
1608 static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR));
1610 static void
1611 coff_set_alignment_hook (abfd, section, scnhdr)
1612 bfd * abfd ATTRIBUTE_UNUSED;
1613 asection * section;
1614 PTR scnhdr;
1616 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1617 unsigned int i;
1619 #ifdef I960
1620 /* Extract ALIGN from 2**ALIGN stored in section header. */
1621 for (i = 0; i < 32; i++)
1622 if ((1 << i) >= hdr->s_align)
1623 break;
1624 #endif
1625 #ifdef TIC80COFF
1626 /* TI tools puts the alignment power in bits 8-11. */
1627 i = (hdr->s_flags >> 8) & 0xF ;
1628 #endif
1629 #ifdef COFF_DECODE_ALIGNMENT
1630 i = COFF_DECODE_ALIGNMENT(hdr->s_flags);
1631 #endif
1632 section->alignment_power = i;
1634 #ifdef coff_set_section_load_page
1635 coff_set_section_load_page (section, hdr->s_page);
1636 #endif
1639 #else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1640 #ifdef COFF_WITH_PE
1642 /* A couple of macros to help setting the alignment power field. */
1643 #define ALIGN_SET(field,x,y) \
1644 if (((field) & IMAGE_SCN_ALIGN_64BYTES) == x )\
1646 section->alignment_power = y;\
1649 #define ELIFALIGN_SET(field,x,y) \
1650 else if (( (field) & IMAGE_SCN_ALIGN_64BYTES) == x ) \
1652 section->alignment_power = y;\
1655 static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR));
1657 static void
1658 coff_set_alignment_hook (abfd, section, scnhdr)
1659 bfd * abfd ATTRIBUTE_UNUSED;
1660 asection * section;
1661 PTR scnhdr;
1663 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1664 bfd_size_type amt;
1666 ALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_64BYTES, 6)
1667 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_32BYTES, 5)
1668 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_16BYTES, 4)
1669 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_8BYTES, 3)
1670 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_4BYTES, 2)
1671 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_2BYTES, 1)
1672 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_1BYTES, 0)
1674 /* In a PE image file, the s_paddr field holds the virtual size of a
1675 section, while the s_size field holds the raw size. We also keep
1676 the original section flag value, since not every bit can be
1677 mapped onto a generic BFD section bit. */
1678 if (coff_section_data (abfd, section) == NULL)
1680 amt = sizeof (struct coff_section_tdata);
1681 section->used_by_bfd = (PTR) bfd_zalloc (abfd, amt);
1682 if (section->used_by_bfd == NULL)
1684 /* FIXME: Return error. */
1685 abort ();
1688 if (pei_section_data (abfd, section) == NULL)
1690 amt = sizeof (struct pei_section_tdata);
1691 coff_section_data (abfd, section)->tdata = (PTR) bfd_zalloc (abfd, amt);
1692 if (coff_section_data (abfd, section)->tdata == NULL)
1694 /* FIXME: Return error. */
1695 abort ();
1698 pei_section_data (abfd, section)->virt_size = hdr->s_paddr;
1699 pei_section_data (abfd, section)->pe_flags = hdr->s_flags;
1701 section->lma = hdr->s_vaddr;
1703 /* Check for extended relocs. */
1704 if (hdr->s_flags & IMAGE_SCN_LNK_NRELOC_OVFL)
1706 struct external_reloc dst;
1707 struct internal_reloc n;
1708 file_ptr oldpos = bfd_tell (abfd);
1709 bfd_size_type relsz = bfd_coff_relsz (abfd);
1711 bfd_seek (abfd, (file_ptr) hdr->s_relptr, 0);
1712 if (bfd_bread ((PTR) &dst, relsz, abfd) != relsz)
1713 return;
1715 coff_swap_reloc_in (abfd, &dst, &n);
1716 bfd_seek (abfd, oldpos, 0);
1717 section->reloc_count = hdr->s_nreloc = n.r_vaddr - 1;
1718 section->rel_filepos += relsz;
1720 else if (hdr->s_nreloc == 0xffff)
1721 (*_bfd_error_handler)
1722 ("%s: warning: claims to have 0xffff relocs, without overflow",
1723 bfd_get_filename (abfd));
1725 #undef ALIGN_SET
1726 #undef ELIFALIGN_SET
1728 #else /* ! COFF_WITH_PE */
1729 #ifdef RS6000COFF_C
1731 /* We grossly abuse this function to handle XCOFF overflow headers.
1732 When we see one, we correct the reloc and line number counts in the
1733 real header, and remove the section we just created. */
1735 static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR));
1737 static void
1738 coff_set_alignment_hook (abfd, section, scnhdr)
1739 bfd *abfd;
1740 asection *section;
1741 PTR scnhdr;
1743 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1744 asection *real_sec;
1745 asection **ps;
1747 if ((hdr->s_flags & STYP_OVRFLO) == 0)
1748 return;
1750 real_sec = coff_section_from_bfd_index (abfd, (int) hdr->s_nreloc);
1751 if (real_sec == NULL)
1752 return;
1754 real_sec->reloc_count = hdr->s_paddr;
1755 real_sec->lineno_count = hdr->s_vaddr;
1757 for (ps = &abfd->sections; *ps != NULL; ps = &(*ps)->next)
1759 if (*ps == section)
1761 bfd_section_list_remove (abfd, ps);
1762 --abfd->section_count;
1763 break;
1768 #else /* ! RS6000COFF_C */
1770 #define coff_set_alignment_hook \
1771 ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void)
1773 #endif /* ! RS6000COFF_C */
1774 #endif /* ! COFF_WITH_PE */
1775 #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
1777 #ifndef coff_mkobject
1779 static bfd_boolean coff_mkobject PARAMS ((bfd *));
1781 static bfd_boolean
1782 coff_mkobject (abfd)
1783 bfd * abfd;
1785 coff_data_type *coff;
1786 bfd_size_type amt = sizeof (coff_data_type);
1788 abfd->tdata.coff_obj_data = (struct coff_tdata *) bfd_zalloc (abfd, amt);
1789 if (abfd->tdata.coff_obj_data == 0)
1790 return FALSE;
1791 coff = coff_data (abfd);
1792 coff->symbols = (coff_symbol_type *) NULL;
1793 coff->conversion_table = (unsigned int *) NULL;
1794 coff->raw_syments = (struct coff_ptr_struct *) NULL;
1795 coff->relocbase = 0;
1796 coff->local_toc_sym_map = 0;
1798 /* make_abs_section(abfd);*/
1800 return TRUE;
1802 #endif
1804 /* Create the COFF backend specific information. */
1806 #ifndef coff_mkobject_hook
1807 static PTR
1808 coff_mkobject_hook (abfd, filehdr, aouthdr)
1809 bfd * abfd;
1810 PTR filehdr;
1811 PTR aouthdr ATTRIBUTE_UNUSED;
1813 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1814 coff_data_type *coff;
1816 if (! coff_mkobject (abfd))
1817 return NULL;
1819 coff = coff_data (abfd);
1821 coff->sym_filepos = internal_f->f_symptr;
1823 /* These members communicate important constants about the symbol
1824 table to GDB's symbol-reading code. These `constants'
1825 unfortunately vary among coff implementations... */
1826 coff->local_n_btmask = N_BTMASK;
1827 coff->local_n_btshft = N_BTSHFT;
1828 coff->local_n_tmask = N_TMASK;
1829 coff->local_n_tshift = N_TSHIFT;
1830 coff->local_symesz = bfd_coff_symesz (abfd);
1831 coff->local_auxesz = bfd_coff_auxesz (abfd);
1832 coff->local_linesz = bfd_coff_linesz (abfd);
1834 coff->timestamp = internal_f->f_timdat;
1836 obj_raw_syment_count (abfd) =
1837 obj_conv_table_size (abfd) =
1838 internal_f->f_nsyms;
1840 #ifdef RS6000COFF_C
1841 if ((internal_f->f_flags & F_SHROBJ) != 0)
1842 abfd->flags |= DYNAMIC;
1843 if (aouthdr != NULL && internal_f->f_opthdr >= bfd_coff_aoutsz (abfd))
1845 struct internal_aouthdr *internal_a =
1846 (struct internal_aouthdr *) aouthdr;
1847 struct xcoff_tdata *xcoff;
1849 xcoff = xcoff_data (abfd);
1850 # ifdef U803XTOCMAGIC
1851 xcoff->xcoff64 = internal_f->f_magic == U803XTOCMAGIC;
1852 # else
1853 xcoff->xcoff64 = 0;
1854 # endif
1855 xcoff->full_aouthdr = TRUE;
1856 xcoff->toc = internal_a->o_toc;
1857 xcoff->sntoc = internal_a->o_sntoc;
1858 xcoff->snentry = internal_a->o_snentry;
1859 bfd_xcoff_text_align_power (abfd) = internal_a->o_algntext;
1860 bfd_xcoff_data_align_power (abfd) = internal_a->o_algndata;
1861 xcoff->modtype = internal_a->o_modtype;
1862 xcoff->cputype = internal_a->o_cputype;
1863 xcoff->maxdata = internal_a->o_maxdata;
1864 xcoff->maxstack = internal_a->o_maxstack;
1866 #endif
1868 #ifdef ARM
1869 /* Set the flags field from the COFF header read in. */
1870 if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags))
1871 coff->flags = 0;
1872 #endif
1874 #ifdef COFF_WITH_PE
1875 /* FIXME: I'm not sure this is ever executed, since peicode.h
1876 defines coff_mkobject_hook. */
1877 if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0)
1878 abfd->flags |= HAS_DEBUG;
1879 #endif
1881 return (PTR) coff;
1883 #endif
1885 /* Determine the machine architecture and type. FIXME: This is target
1886 dependent because the magic numbers are defined in the target
1887 dependent header files. But there is no particular need for this.
1888 If the magic numbers were moved to a separate file, this function
1889 would be target independent and would also be much more successful
1890 at linking together COFF files for different architectures. */
1892 static bfd_boolean
1893 coff_set_arch_mach_hook (abfd, filehdr)
1894 bfd *abfd;
1895 PTR filehdr;
1897 unsigned long machine;
1898 enum bfd_architecture arch;
1899 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1901 /* Zero selects the default machine for an arch. */
1902 machine = 0;
1903 switch (internal_f->f_magic)
1905 #ifdef OR32_MAGIC_BIG
1906 case OR32_MAGIC_BIG:
1907 case OR32_MAGIC_LITTLE:
1908 arch = bfd_arch_or32;
1909 break;
1910 #endif
1911 #ifdef PPCMAGIC
1912 case PPCMAGIC:
1913 arch = bfd_arch_powerpc;
1914 break;
1915 #endif
1916 #ifdef I386MAGIC
1917 case I386MAGIC:
1918 case I386PTXMAGIC:
1919 case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler */
1920 case LYNXCOFFMAGIC: /* shadows the m68k Lynx number below, sigh */
1921 arch = bfd_arch_i386;
1922 break;
1923 #endif
1924 #ifdef IA64MAGIC
1925 case IA64MAGIC:
1926 arch = bfd_arch_ia64;
1927 break;
1928 #endif
1929 #ifdef A29K_MAGIC_BIG
1930 case A29K_MAGIC_BIG:
1931 case A29K_MAGIC_LITTLE:
1932 arch = bfd_arch_a29k;
1933 break;
1934 #endif
1935 #ifdef ARMMAGIC
1936 case ARMMAGIC:
1937 case ARMPEMAGIC:
1938 case THUMBPEMAGIC:
1939 arch = bfd_arch_arm;
1940 machine = bfd_arm_get_mach_from_notes (abfd, ARM_NOTE_SECTION);
1941 if (machine == bfd_mach_arm_unknown)
1943 switch (internal_f->f_flags & F_ARM_ARCHITECTURE_MASK)
1945 case F_ARM_2: machine = bfd_mach_arm_2; break;
1946 case F_ARM_2a: machine = bfd_mach_arm_2a; break;
1947 case F_ARM_3: machine = bfd_mach_arm_3; break;
1948 default:
1949 case F_ARM_3M: machine = bfd_mach_arm_3M; break;
1950 case F_ARM_4: machine = bfd_mach_arm_4; break;
1951 case F_ARM_4T: machine = bfd_mach_arm_4T; break;
1952 /* The COFF header does not have enough bits available
1953 to cover all the different ARM architectures. So
1954 we interpret F_ARM_5, the highest flag value to mean
1955 "the highest ARM architecture known to BFD" which is
1956 currently the XScale. */
1957 case F_ARM_5: machine = bfd_mach_arm_XScale; break;
1960 break;
1961 #endif
1962 #ifdef MC68MAGIC
1963 case MC68MAGIC:
1964 case M68MAGIC:
1965 #ifdef MC68KBCSMAGIC
1966 case MC68KBCSMAGIC:
1967 #endif
1968 #ifdef APOLLOM68KMAGIC
1969 case APOLLOM68KMAGIC:
1970 #endif
1971 #ifdef LYNXCOFFMAGIC
1972 case LYNXCOFFMAGIC:
1973 #endif
1974 arch = bfd_arch_m68k;
1975 machine = bfd_mach_m68020;
1976 break;
1977 #endif
1978 #ifdef MC88MAGIC
1979 case MC88MAGIC:
1980 case MC88DMAGIC:
1981 case MC88OMAGIC:
1982 arch = bfd_arch_m88k;
1983 machine = 88100;
1984 break;
1985 #endif
1986 #ifdef Z8KMAGIC
1987 case Z8KMAGIC:
1988 arch = bfd_arch_z8k;
1989 switch (internal_f->f_flags & F_MACHMASK)
1991 case F_Z8001:
1992 machine = bfd_mach_z8001;
1993 break;
1994 case F_Z8002:
1995 machine = bfd_mach_z8002;
1996 break;
1997 default:
1998 return FALSE;
2000 break;
2001 #endif
2002 #ifdef I860
2003 case I860MAGIC:
2004 arch = bfd_arch_i860;
2005 break;
2006 #endif
2007 #ifdef I960
2008 #ifdef I960ROMAGIC
2009 case I960ROMAGIC:
2010 case I960RWMAGIC:
2011 arch = bfd_arch_i960;
2012 switch (F_I960TYPE & internal_f->f_flags)
2014 default:
2015 case F_I960CORE:
2016 machine = bfd_mach_i960_core;
2017 break;
2018 case F_I960KB:
2019 machine = bfd_mach_i960_kb_sb;
2020 break;
2021 case F_I960MC:
2022 machine = bfd_mach_i960_mc;
2023 break;
2024 case F_I960XA:
2025 machine = bfd_mach_i960_xa;
2026 break;
2027 case F_I960CA:
2028 machine = bfd_mach_i960_ca;
2029 break;
2030 case F_I960KA:
2031 machine = bfd_mach_i960_ka_sa;
2032 break;
2033 case F_I960JX:
2034 machine = bfd_mach_i960_jx;
2035 break;
2036 case F_I960HX:
2037 machine = bfd_mach_i960_hx;
2038 break;
2040 break;
2041 #endif
2042 #endif
2044 #ifdef RS6000COFF_C
2045 #ifdef XCOFF64
2046 case U64_TOCMAGIC:
2047 case U803XTOCMAGIC:
2048 #else
2049 case U802ROMAGIC:
2050 case U802WRMAGIC:
2051 case U802TOCMAGIC:
2052 #endif
2054 int cputype;
2056 if (xcoff_data (abfd)->cputype != -1)
2057 cputype = xcoff_data (abfd)->cputype & 0xff;
2058 else
2060 /* We did not get a value from the a.out header. If the
2061 file has not been stripped, we may be able to get the
2062 architecture information from the first symbol, if it
2063 is a .file symbol. */
2064 if (obj_raw_syment_count (abfd) == 0)
2065 cputype = 0;
2066 else
2068 bfd_byte *buf;
2069 struct internal_syment sym;
2070 bfd_size_type amt = bfd_coff_symesz (abfd);
2072 buf = (bfd_byte *) bfd_malloc (amt);
2073 if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
2074 || bfd_bread (buf, amt, abfd) != amt)
2076 free (buf);
2077 return FALSE;
2079 bfd_coff_swap_sym_in (abfd, (PTR) buf, (PTR) &sym);
2080 if (sym.n_sclass == C_FILE)
2081 cputype = sym.n_type & 0xff;
2082 else
2083 cputype = 0;
2084 free (buf);
2088 /* FIXME: We don't handle all cases here. */
2089 switch (cputype)
2091 default:
2092 case 0:
2093 arch = bfd_xcoff_architecture (abfd);
2094 machine = bfd_xcoff_machine (abfd);
2095 break;
2097 case 1:
2098 arch = bfd_arch_powerpc;
2099 machine = bfd_mach_ppc_601;
2100 break;
2101 case 2: /* 64 bit PowerPC */
2102 arch = bfd_arch_powerpc;
2103 machine = bfd_mach_ppc_620;
2104 break;
2105 case 3:
2106 arch = bfd_arch_powerpc;
2107 machine = bfd_mach_ppc;
2108 break;
2109 case 4:
2110 arch = bfd_arch_rs6000;
2111 machine = bfd_mach_rs6k;
2112 break;
2115 break;
2116 #endif
2118 #ifdef WE32KMAGIC
2119 case WE32KMAGIC:
2120 arch = bfd_arch_we32k;
2121 break;
2122 #endif
2124 #ifdef H8300MAGIC
2125 case H8300MAGIC:
2126 arch = bfd_arch_h8300;
2127 machine = bfd_mach_h8300;
2128 /* !! FIXME this probably isn't the right place for this. */
2129 abfd->flags |= BFD_IS_RELAXABLE;
2130 break;
2131 #endif
2133 #ifdef H8300HMAGIC
2134 case H8300HMAGIC:
2135 arch = bfd_arch_h8300;
2136 machine = bfd_mach_h8300h;
2137 /* !! FIXME this probably isn't the right place for this. */
2138 abfd->flags |= BFD_IS_RELAXABLE;
2139 break;
2140 #endif
2142 #ifdef H8300SMAGIC
2143 case H8300SMAGIC:
2144 arch = bfd_arch_h8300;
2145 machine = bfd_mach_h8300s;
2146 /* !! FIXME this probably isn't the right place for this. */
2147 abfd->flags |= BFD_IS_RELAXABLE;
2148 break;
2149 #endif
2151 #ifdef H8300HNMAGIC
2152 case H8300HNMAGIC:
2153 arch = bfd_arch_h8300;
2154 machine = bfd_mach_h8300hn;
2155 /* !! FIXME this probably isn't the right place for this. */
2156 abfd->flags |= BFD_IS_RELAXABLE;
2157 break;
2158 #endif
2160 #ifdef H8300SNMAGIC
2161 case H8300SNMAGIC:
2162 arch = bfd_arch_h8300;
2163 machine = bfd_mach_h8300sn;
2164 /* !! FIXME this probably isn't the right place for this. */
2165 abfd->flags |= BFD_IS_RELAXABLE;
2166 break;
2167 #endif
2169 #ifdef SH_ARCH_MAGIC_BIG
2170 case SH_ARCH_MAGIC_BIG:
2171 case SH_ARCH_MAGIC_LITTLE:
2172 #ifdef COFF_WITH_PE
2173 case SH_ARCH_MAGIC_WINCE:
2174 #endif
2175 arch = bfd_arch_sh;
2176 break;
2177 #endif
2179 #ifdef MIPS_ARCH_MAGIC_WINCE
2180 case MIPS_ARCH_MAGIC_WINCE:
2181 arch = bfd_arch_mips;
2182 break;
2183 #endif
2185 #ifdef H8500MAGIC
2186 case H8500MAGIC:
2187 arch = bfd_arch_h8500;
2188 break;
2189 #endif
2191 #ifdef SPARCMAGIC
2192 case SPARCMAGIC:
2193 #ifdef LYNXCOFFMAGIC
2194 case LYNXCOFFMAGIC:
2195 #endif
2196 arch = bfd_arch_sparc;
2197 break;
2198 #endif
2200 #ifdef TIC30MAGIC
2201 case TIC30MAGIC:
2202 arch = bfd_arch_tic30;
2203 break;
2204 #endif
2206 #ifdef TICOFF0MAGIC
2207 #ifdef TICOFF_TARGET_ARCH
2208 /* This TI COFF section should be used by all new TI COFF v0 targets. */
2209 case TICOFF0MAGIC:
2210 arch = TICOFF_TARGET_ARCH;
2211 machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags);
2212 break;
2213 #endif
2214 #endif
2216 #ifdef TICOFF1MAGIC
2217 /* This TI COFF section should be used by all new TI COFF v1/2 targets. */
2218 /* TI COFF1 and COFF2 use the target_id field to specify which arch. */
2219 case TICOFF1MAGIC:
2220 case TICOFF2MAGIC:
2221 switch (internal_f->f_target_id)
2223 #ifdef TI_TARGET_ID
2224 case TI_TARGET_ID:
2225 arch = TICOFF_TARGET_ARCH;
2226 machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags);
2227 break;
2228 #endif
2229 default:
2230 arch = bfd_arch_obscure;
2231 (*_bfd_error_handler)
2232 (_("Unrecognized TI COFF target id '0x%x'"),
2233 internal_f->f_target_id);
2234 break;
2236 break;
2237 #endif
2239 #ifdef TIC80_ARCH_MAGIC
2240 case TIC80_ARCH_MAGIC:
2241 arch = bfd_arch_tic80;
2242 break;
2243 #endif
2245 #ifdef MCOREMAGIC
2246 case MCOREMAGIC:
2247 arch = bfd_arch_mcore;
2248 break;
2249 #endif
2251 #ifdef W65MAGIC
2252 case W65MAGIC:
2253 arch = bfd_arch_w65;
2254 break;
2255 #endif
2257 default: /* Unreadable input file type. */
2258 arch = bfd_arch_obscure;
2259 break;
2262 bfd_default_set_arch_mach (abfd, arch, machine);
2263 return TRUE;
2266 #ifdef SYMNAME_IN_DEBUG
2268 static bfd_boolean symname_in_debug_hook
2269 PARAMS ((bfd *, struct internal_syment *));
2271 static bfd_boolean
2272 symname_in_debug_hook (abfd, sym)
2273 bfd * abfd ATTRIBUTE_UNUSED;
2274 struct internal_syment *sym;
2276 return SYMNAME_IN_DEBUG (sym) != 0;
2279 #else
2281 #define symname_in_debug_hook \
2282 (bfd_boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false
2284 #endif
2286 #ifdef RS6000COFF_C
2288 #ifdef XCOFF64
2289 #define FORCE_SYMNAMES_IN_STRINGS
2290 #endif
2292 /* Handle the csect auxent of a C_EXT or C_HIDEXT symbol. */
2294 static bfd_boolean coff_pointerize_aux_hook
2295 PARAMS ((bfd *, combined_entry_type *, combined_entry_type *,
2296 unsigned int, combined_entry_type *));
2298 static bfd_boolean
2299 coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux)
2300 bfd *abfd ATTRIBUTE_UNUSED;
2301 combined_entry_type *table_base;
2302 combined_entry_type *symbol;
2303 unsigned int indaux;
2304 combined_entry_type *aux;
2306 int class = symbol->u.syment.n_sclass;
2308 if ((class == C_EXT || class == C_HIDEXT)
2309 && indaux + 1 == symbol->u.syment.n_numaux)
2311 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD)
2313 aux->u.auxent.x_csect.x_scnlen.p =
2314 table_base + aux->u.auxent.x_csect.x_scnlen.l;
2315 aux->fix_scnlen = 1;
2318 /* Return TRUE to indicate that the caller should not do any
2319 further work on this auxent. */
2320 return TRUE;
2323 /* Return FALSE to indicate that this auxent should be handled by
2324 the caller. */
2325 return FALSE;
2328 #else
2329 #ifdef I960
2331 /* We don't want to pointerize bal entries. */
2333 static bfd_boolean coff_pointerize_aux_hook
2334 PARAMS ((bfd *, combined_entry_type *, combined_entry_type *,
2335 unsigned int, combined_entry_type *));
2337 static bfd_boolean
2338 coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux)
2339 bfd *abfd ATTRIBUTE_UNUSED;
2340 combined_entry_type *table_base ATTRIBUTE_UNUSED;
2341 combined_entry_type *symbol;
2342 unsigned int indaux;
2343 combined_entry_type *aux ATTRIBUTE_UNUSED;
2345 /* Return TRUE if we don't want to pointerize this aux entry, which
2346 is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */
2347 return (indaux == 1
2348 && (symbol->u.syment.n_sclass == C_LEAFPROC
2349 || symbol->u.syment.n_sclass == C_LEAFSTAT
2350 || symbol->u.syment.n_sclass == C_LEAFEXT));
2353 #else /* ! I960 */
2355 #define coff_pointerize_aux_hook 0
2357 #endif /* ! I960 */
2358 #endif /* ! RS6000COFF_C */
2360 /* Print an aux entry. This returns TRUE if it has printed it. */
2362 static bfd_boolean coff_print_aux
2363 PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *,
2364 combined_entry_type *, unsigned int));
2366 static bfd_boolean
2367 coff_print_aux (abfd, file, table_base, symbol, aux, indaux)
2368 bfd *abfd ATTRIBUTE_UNUSED;
2369 FILE *file ATTRIBUTE_UNUSED;
2370 combined_entry_type *table_base ATTRIBUTE_UNUSED;
2371 combined_entry_type *symbol ATTRIBUTE_UNUSED;
2372 combined_entry_type *aux ATTRIBUTE_UNUSED;
2373 unsigned int indaux ATTRIBUTE_UNUSED;
2375 #ifdef RS6000COFF_C
2376 if ((symbol->u.syment.n_sclass == C_EXT
2377 || symbol->u.syment.n_sclass == C_HIDEXT)
2378 && indaux + 1 == symbol->u.syment.n_numaux)
2380 /* This is a csect entry. */
2381 fprintf (file, "AUX ");
2382 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) != XTY_LD)
2384 BFD_ASSERT (! aux->fix_scnlen);
2385 #ifdef XCOFF64
2386 fprintf (file, "val %5lld", aux->u.auxent.x_csect.x_scnlen.l);
2387 #else
2388 fprintf (file, "val %5ld", (long) aux->u.auxent.x_csect.x_scnlen.l);
2389 #endif
2391 else
2393 fprintf (file, "indx ");
2394 if (! aux->fix_scnlen)
2395 #ifdef XCOFF64
2396 fprintf (file, "%4lld", aux->u.auxent.x_csect.x_scnlen.l);
2397 #else
2398 fprintf (file, "%4ld", (long) aux->u.auxent.x_csect.x_scnlen.l);
2399 #endif
2400 else
2401 fprintf (file, "%4ld",
2402 (long) (aux->u.auxent.x_csect.x_scnlen.p - table_base));
2404 fprintf (file,
2405 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2406 aux->u.auxent.x_csect.x_parmhash,
2407 (unsigned int) aux->u.auxent.x_csect.x_snhash,
2408 SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp),
2409 SMTYP_ALIGN (aux->u.auxent.x_csect.x_smtyp),
2410 (unsigned int) aux->u.auxent.x_csect.x_smclas,
2411 aux->u.auxent.x_csect.x_stab,
2412 (unsigned int) aux->u.auxent.x_csect.x_snstab);
2413 return TRUE;
2415 #endif
2417 /* Return FALSE to indicate that no special action was taken. */
2418 return FALSE;
2422 SUBSUBSECTION
2423 Writing relocations
2425 To write relocations, the back end steps though the
2426 canonical relocation table and create an
2427 @code{internal_reloc}. The symbol index to use is removed from
2428 the @code{offset} field in the symbol table supplied. The
2429 address comes directly from the sum of the section base
2430 address and the relocation offset; the type is dug directly
2431 from the howto field. Then the @code{internal_reloc} is
2432 swapped into the shape of an @code{external_reloc} and written
2433 out to disk.
2437 #ifdef TARG_AUX
2439 static int compare_arelent_ptr PARAMS ((const PTR, const PTR));
2441 /* AUX's ld wants relocations to be sorted. */
2442 static int
2443 compare_arelent_ptr (x, y)
2444 const PTR x;
2445 const PTR y;
2447 const arelent **a = (const arelent **) x;
2448 const arelent **b = (const arelent **) y;
2449 bfd_size_type aadr = (*a)->address;
2450 bfd_size_type badr = (*b)->address;
2452 return (aadr < badr ? -1 : badr < aadr ? 1 : 0);
2455 #endif /* TARG_AUX */
2457 static bfd_boolean
2458 coff_write_relocs (abfd, first_undef)
2459 bfd * abfd;
2460 int first_undef;
2462 asection *s;
2464 for (s = abfd->sections; s != (asection *) NULL; s = s->next)
2466 unsigned int i;
2467 struct external_reloc dst;
2468 arelent **p;
2470 #ifndef TARG_AUX
2471 p = s->orelocation;
2472 #else
2474 /* Sort relocations before we write them out. */
2475 bfd_size_type amt;
2477 amt = s->reloc_count;
2478 amt *= sizeof (arelent *);
2479 p = (arelent **) bfd_malloc (amt);
2480 if (p == NULL && s->reloc_count > 0)
2481 return FALSE;
2482 memcpy (p, s->orelocation, (size_t) amt);
2483 qsort (p, s->reloc_count, sizeof (arelent *), compare_arelent_ptr);
2485 #endif
2487 if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0)
2488 return FALSE;
2490 #ifdef COFF_WITH_PE
2491 if (obj_pe (abfd) && s->reloc_count >= 0xffff)
2493 /* Encode real count here as first reloc. */
2494 struct internal_reloc n;
2496 memset ((PTR) & n, 0, sizeof (n));
2497 /* Add one to count *this* reloc (grr). */
2498 n.r_vaddr = s->reloc_count + 1;
2499 coff_swap_reloc_out (abfd, &n, &dst);
2500 if (bfd_bwrite ((PTR) & dst, (bfd_size_type) bfd_coff_relsz (abfd),
2501 abfd) != bfd_coff_relsz (abfd))
2502 return FALSE;
2504 #endif
2506 for (i = 0; i < s->reloc_count; i++)
2508 struct internal_reloc n;
2509 arelent *q = p[i];
2511 memset ((PTR) & n, 0, sizeof (n));
2513 /* Now we've renumbered the symbols we know where the
2514 undefined symbols live in the table. Check the reloc
2515 entries for symbols who's output bfd isn't the right one.
2516 This is because the symbol was undefined (which means
2517 that all the pointers are never made to point to the same
2518 place). This is a bad thing,'cause the symbols attached
2519 to the output bfd are indexed, so that the relocation
2520 entries know which symbol index they point to. So we
2521 have to look up the output symbol here. */
2523 if (q->sym_ptr_ptr[0]->the_bfd != abfd)
2525 int j;
2526 const char *sname = q->sym_ptr_ptr[0]->name;
2527 asymbol **outsyms = abfd->outsymbols;
2529 for (j = first_undef; outsyms[j]; j++)
2531 const char *intable = outsyms[j]->name;
2533 if (strcmp (intable, sname) == 0) {
2534 /* Got a hit, so repoint the reloc. */
2535 q->sym_ptr_ptr = outsyms + j;
2536 break;
2541 n.r_vaddr = q->address + s->vma;
2543 #ifdef R_IHCONST
2544 /* The 29k const/consth reloc pair is a real kludge. The consth
2545 part doesn't have a symbol; it has an offset. So rebuilt
2546 that here. */
2547 if (q->howto->type == R_IHCONST)
2548 n.r_symndx = q->addend;
2549 else
2550 #endif
2551 if (q->sym_ptr_ptr)
2553 #ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P
2554 if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q,s))
2555 #else
2556 if ((*q->sym_ptr_ptr)->section == bfd_abs_section_ptr
2557 && ((*q->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0)
2558 #endif
2559 /* This is a relocation relative to the absolute symbol. */
2560 n.r_symndx = -1;
2561 else
2563 n.r_symndx = get_index ((*(q->sym_ptr_ptr)));
2564 /* Take notice if the symbol reloc points to a symbol
2565 we don't have in our symbol table. What should we
2566 do for this?? */
2567 if (n.r_symndx > obj_conv_table_size (abfd))
2568 abort ();
2572 #ifdef SWAP_OUT_RELOC_OFFSET
2573 n.r_offset = q->addend;
2574 #endif
2576 #ifdef SELECT_RELOC
2577 /* Work out reloc type from what is required. */
2578 SELECT_RELOC (n, q->howto);
2579 #else
2580 n.r_type = q->howto->type;
2581 #endif
2582 coff_swap_reloc_out (abfd, &n, &dst);
2584 if (bfd_bwrite ((PTR) & dst, (bfd_size_type) bfd_coff_relsz (abfd),
2585 abfd) != bfd_coff_relsz (abfd))
2586 return FALSE;
2589 #ifdef TARG_AUX
2590 if (p != NULL)
2591 free (p);
2592 #endif
2595 return TRUE;
2598 /* Set flags and magic number of a coff file from architecture and machine
2599 type. Result is TRUE if we can represent the arch&type, FALSE if not. */
2601 static bfd_boolean
2602 coff_set_flags (abfd, magicp, flagsp)
2603 bfd * abfd;
2604 unsigned int *magicp ATTRIBUTE_UNUSED;
2605 unsigned short *flagsp ATTRIBUTE_UNUSED;
2607 switch (bfd_get_arch (abfd))
2609 #ifdef Z8KMAGIC
2610 case bfd_arch_z8k:
2611 *magicp = Z8KMAGIC;
2612 switch (bfd_get_mach (abfd))
2614 case bfd_mach_z8001:
2615 *flagsp = F_Z8001;
2616 break;
2617 case bfd_mach_z8002:
2618 *flagsp = F_Z8002;
2619 break;
2620 default:
2621 return FALSE;
2623 return TRUE;
2624 #endif
2625 #ifdef I960ROMAGIC
2627 case bfd_arch_i960:
2630 unsigned flags;
2631 *magicp = I960ROMAGIC;
2633 ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC :
2634 I960RWMAGIC); FIXME???
2636 switch (bfd_get_mach (abfd))
2638 case bfd_mach_i960_core:
2639 flags = F_I960CORE;
2640 break;
2641 case bfd_mach_i960_kb_sb:
2642 flags = F_I960KB;
2643 break;
2644 case bfd_mach_i960_mc:
2645 flags = F_I960MC;
2646 break;
2647 case bfd_mach_i960_xa:
2648 flags = F_I960XA;
2649 break;
2650 case bfd_mach_i960_ca:
2651 flags = F_I960CA;
2652 break;
2653 case bfd_mach_i960_ka_sa:
2654 flags = F_I960KA;
2655 break;
2656 case bfd_mach_i960_jx:
2657 flags = F_I960JX;
2658 break;
2659 case bfd_mach_i960_hx:
2660 flags = F_I960HX;
2661 break;
2662 default:
2663 return FALSE;
2665 *flagsp = flags;
2666 return TRUE;
2668 break;
2669 #endif
2671 #ifdef TIC30MAGIC
2672 case bfd_arch_tic30:
2673 *magicp = TIC30MAGIC;
2674 return TRUE;
2675 #endif
2677 #ifdef TICOFF_DEFAULT_MAGIC
2678 case TICOFF_TARGET_ARCH:
2679 /* If there's no indication of which version we want, use the default. */
2680 if (!abfd->xvec )
2681 *magicp = TICOFF_DEFAULT_MAGIC;
2682 else
2684 /* We may want to output in a different COFF version. */
2685 switch (abfd->xvec->name[4])
2687 case '0':
2688 *magicp = TICOFF0MAGIC;
2689 break;
2690 case '1':
2691 *magicp = TICOFF1MAGIC;
2692 break;
2693 case '2':
2694 *magicp = TICOFF2MAGIC;
2695 break;
2696 default:
2697 return FALSE;
2700 TICOFF_TARGET_MACHINE_SET (flagsp, bfd_get_mach (abfd));
2701 return TRUE;
2702 #endif
2704 #ifdef TIC80_ARCH_MAGIC
2705 case bfd_arch_tic80:
2706 *magicp = TIC80_ARCH_MAGIC;
2707 return TRUE;
2708 #endif
2709 #ifdef ARMMAGIC
2710 case bfd_arch_arm:
2711 #ifdef ARM_WINCE
2712 * magicp = ARMPEMAGIC;
2713 #else
2714 * magicp = ARMMAGIC;
2715 #endif
2716 * flagsp = 0;
2717 if (APCS_SET (abfd))
2719 if (APCS_26_FLAG (abfd))
2720 * flagsp |= F_APCS26;
2722 if (APCS_FLOAT_FLAG (abfd))
2723 * flagsp |= F_APCS_FLOAT;
2725 if (PIC_FLAG (abfd))
2726 * flagsp |= F_PIC;
2728 if (INTERWORK_SET (abfd) && INTERWORK_FLAG (abfd))
2729 * flagsp |= F_INTERWORK;
2730 switch (bfd_get_mach (abfd))
2732 case bfd_mach_arm_2: * flagsp |= F_ARM_2; break;
2733 case bfd_mach_arm_2a: * flagsp |= F_ARM_2a; break;
2734 case bfd_mach_arm_3: * flagsp |= F_ARM_3; break;
2735 case bfd_mach_arm_3M: * flagsp |= F_ARM_3M; break;
2736 case bfd_mach_arm_4: * flagsp |= F_ARM_4; break;
2737 case bfd_mach_arm_4T: * flagsp |= F_ARM_4T; break;
2738 case bfd_mach_arm_5: * flagsp |= F_ARM_5; break;
2739 /* FIXME: we do not have F_ARM vaues greater than F_ARM_5.
2740 See also the comment in coff_set_arch_mach_hook(). */
2741 case bfd_mach_arm_5T: * flagsp |= F_ARM_5; break;
2742 case bfd_mach_arm_5TE: * flagsp |= F_ARM_5; break;
2743 case bfd_mach_arm_XScale: * flagsp |= F_ARM_5; break;
2745 return TRUE;
2746 #endif
2747 #ifdef PPCMAGIC
2748 case bfd_arch_powerpc:
2749 *magicp = PPCMAGIC;
2750 return TRUE;
2751 break;
2752 #endif
2753 #ifdef I386MAGIC
2754 case bfd_arch_i386:
2755 *magicp = I386MAGIC;
2756 #ifdef LYNXOS
2757 /* Just overwrite the usual value if we're doing Lynx. */
2758 *magicp = LYNXCOFFMAGIC;
2759 #endif
2760 return TRUE;
2761 break;
2762 #endif
2763 #ifdef I860MAGIC
2764 case bfd_arch_i860:
2765 *magicp = I860MAGIC;
2766 return TRUE;
2767 break;
2768 #endif
2769 #ifdef IA64MAGIC
2770 case bfd_arch_ia64:
2771 *magicp = IA64MAGIC;
2772 return TRUE;
2773 break;
2774 #endif
2775 #ifdef MC68MAGIC
2776 case bfd_arch_m68k:
2777 #ifdef APOLLOM68KMAGIC
2778 *magicp = APOLLO_COFF_VERSION_NUMBER;
2779 #else
2780 /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */
2781 #ifdef NAMES_HAVE_UNDERSCORE
2782 *magicp = MC68KBCSMAGIC;
2783 #else
2784 *magicp = MC68MAGIC;
2785 #endif
2786 #endif
2787 #ifdef LYNXOS
2788 /* Just overwrite the usual value if we're doing Lynx. */
2789 *magicp = LYNXCOFFMAGIC;
2790 #endif
2791 return TRUE;
2792 break;
2793 #endif
2795 #ifdef MC88MAGIC
2796 case bfd_arch_m88k:
2797 *magicp = MC88OMAGIC;
2798 return TRUE;
2799 break;
2800 #endif
2801 #ifdef H8300MAGIC
2802 case bfd_arch_h8300:
2803 switch (bfd_get_mach (abfd))
2805 case bfd_mach_h8300:
2806 *magicp = H8300MAGIC;
2807 return TRUE;
2808 case bfd_mach_h8300h:
2809 *magicp = H8300HMAGIC;
2810 return TRUE;
2811 case bfd_mach_h8300s:
2812 *magicp = H8300SMAGIC;
2813 return TRUE;
2814 case bfd_mach_h8300hn:
2815 *magicp = H8300HNMAGIC;
2816 return TRUE;
2817 case bfd_mach_h8300sn:
2818 *magicp = H8300SNMAGIC;
2819 return TRUE;
2821 break;
2822 #endif
2824 #ifdef SH_ARCH_MAGIC_BIG
2825 case bfd_arch_sh:
2826 #ifdef COFF_IMAGE_WITH_PE
2827 *magicp = SH_ARCH_MAGIC_WINCE;
2828 #else
2829 if (bfd_big_endian (abfd))
2830 *magicp = SH_ARCH_MAGIC_BIG;
2831 else
2832 *magicp = SH_ARCH_MAGIC_LITTLE;
2833 #endif
2834 return TRUE;
2835 break;
2836 #endif
2838 #ifdef MIPS_ARCH_MAGIC_WINCE
2839 case bfd_arch_mips:
2840 *magicp = MIPS_ARCH_MAGIC_WINCE;
2841 return TRUE;
2842 break;
2843 #endif
2845 #ifdef SPARCMAGIC
2846 case bfd_arch_sparc:
2847 *magicp = SPARCMAGIC;
2848 #ifdef LYNXOS
2849 /* Just overwrite the usual value if we're doing Lynx. */
2850 *magicp = LYNXCOFFMAGIC;
2851 #endif
2852 return TRUE;
2853 break;
2854 #endif
2856 #ifdef H8500MAGIC
2857 case bfd_arch_h8500:
2858 *magicp = H8500MAGIC;
2859 return TRUE;
2860 break;
2861 #endif
2862 #ifdef A29K_MAGIC_BIG
2863 case bfd_arch_a29k:
2864 if (bfd_big_endian (abfd))
2865 *magicp = A29K_MAGIC_BIG;
2866 else
2867 *magicp = A29K_MAGIC_LITTLE;
2868 return TRUE;
2869 break;
2870 #endif
2872 #ifdef WE32KMAGIC
2873 case bfd_arch_we32k:
2874 *magicp = WE32KMAGIC;
2875 return TRUE;
2876 break;
2877 #endif
2879 #ifdef RS6000COFF_C
2880 case bfd_arch_rs6000:
2881 #ifndef PPCMAGIC
2882 case bfd_arch_powerpc:
2883 #endif
2884 BFD_ASSERT (bfd_get_flavour (abfd) == bfd_target_xcoff_flavour);
2885 *magicp = bfd_xcoff_magic_number (abfd);
2886 return TRUE;
2887 break;
2888 #endif
2890 #ifdef MCOREMAGIC
2891 case bfd_arch_mcore:
2892 * magicp = MCOREMAGIC;
2893 return TRUE;
2894 #endif
2896 #ifdef W65MAGIC
2897 case bfd_arch_w65:
2898 *magicp = W65MAGIC;
2899 return TRUE;
2900 #endif
2902 #ifdef OR32_MAGIC_BIG
2903 case bfd_arch_or32:
2904 if (bfd_big_endian (abfd))
2905 * magicp = OR32_MAGIC_BIG;
2906 else
2907 * magicp = OR32_MAGIC_LITTLE;
2908 return TRUE;
2909 #endif
2911 default: /* Unknown architecture. */
2912 /* Fall through to "return FALSE" below, to avoid
2913 "statement never reached" errors on the one below. */
2914 break;
2917 return FALSE;
2920 static bfd_boolean
2921 coff_set_arch_mach (abfd, arch, machine)
2922 bfd * abfd;
2923 enum bfd_architecture arch;
2924 unsigned long machine;
2926 unsigned dummy1;
2927 unsigned short dummy2;
2929 if (! bfd_default_set_arch_mach (abfd, arch, machine))
2930 return FALSE;
2932 if (arch != bfd_arch_unknown
2933 && ! coff_set_flags (abfd, &dummy1, &dummy2))
2934 return FALSE; /* We can't represent this type */
2936 return TRUE; /* We're easy ... */
2939 #ifdef COFF_IMAGE_WITH_PE
2941 /* This is used to sort sections by VMA, as required by PE image
2942 files. */
2944 static int sort_by_secaddr PARAMS ((const PTR, const PTR));
2946 static int
2947 sort_by_secaddr (arg1, arg2)
2948 const PTR arg1;
2949 const PTR arg2;
2951 const asection *a = *(const asection **) arg1;
2952 const asection *b = *(const asection **) arg2;
2954 if (a->vma < b->vma)
2955 return -1;
2956 else if (a->vma > b->vma)
2957 return 1;
2958 else
2959 return 0;
2962 #endif /* COFF_IMAGE_WITH_PE */
2964 /* Calculate the file position for each section. */
2966 #ifndef I960
2967 #define ALIGN_SECTIONS_IN_FILE
2968 #endif
2969 #if defined(TIC80COFF) || defined(TICOFF)
2970 #undef ALIGN_SECTIONS_IN_FILE
2971 #endif
2973 static bfd_boolean
2974 coff_compute_section_file_positions (abfd)
2975 bfd * abfd;
2977 asection *current;
2978 asection *previous = (asection *) NULL;
2979 file_ptr sofar = bfd_coff_filhsz (abfd);
2980 bfd_boolean align_adjust;
2981 #ifdef ALIGN_SECTIONS_IN_FILE
2982 file_ptr old_sofar;
2983 #endif
2985 #ifdef RS6000COFF_C
2986 /* On XCOFF, if we have symbols, set up the .debug section. */
2987 if (bfd_get_symcount (abfd) > 0)
2989 bfd_size_type sz;
2990 bfd_size_type i, symcount;
2991 asymbol **symp;
2993 sz = 0;
2994 symcount = bfd_get_symcount (abfd);
2995 for (symp = abfd->outsymbols, i = 0; i < symcount; symp++, i++)
2997 coff_symbol_type *cf;
2999 cf = coff_symbol_from (abfd, *symp);
3000 if (cf != NULL
3001 && cf->native != NULL
3002 && SYMNAME_IN_DEBUG (&cf->native->u.syment))
3004 size_t len;
3006 len = strlen (bfd_asymbol_name (*symp));
3007 if (len > SYMNMLEN || bfd_coff_force_symnames_in_strings (abfd))
3008 sz += len + 1 + bfd_coff_debug_string_prefix_length (abfd);
3011 if (sz > 0)
3013 asection *dsec;
3015 dsec = bfd_make_section_old_way (abfd, DOT_DEBUG);
3016 if (dsec == NULL)
3017 abort ();
3018 dsec->_raw_size = sz;
3019 dsec->flags |= SEC_HAS_CONTENTS;
3022 #endif
3024 #ifdef COFF_IMAGE_WITH_PE
3025 int page_size;
3026 if (coff_data (abfd)->link_info)
3028 page_size = pe_data (abfd)->pe_opthdr.FileAlignment;
3030 /* If no file alignment has been set, default to one.
3031 This repairs 'ld -r' for arm-wince-pe target. */
3032 if (page_size == 0)
3033 page_size = 1;
3035 else
3036 page_size = PE_DEF_FILE_ALIGNMENT;
3037 #else
3038 #ifdef COFF_PAGE_SIZE
3039 int page_size = COFF_PAGE_SIZE;
3040 #endif
3041 #endif
3043 if (bfd_get_start_address (abfd))
3045 /* A start address may have been added to the original file. In this
3046 case it will need an optional header to record it. */
3047 abfd->flags |= EXEC_P;
3050 if (abfd->flags & EXEC_P)
3051 sofar += bfd_coff_aoutsz (abfd);
3052 #ifdef RS6000COFF_C
3053 else if (xcoff_data (abfd)->full_aouthdr)
3054 sofar += bfd_coff_aoutsz (abfd);
3055 else
3056 sofar += SMALL_AOUTSZ;
3057 #endif
3059 sofar += abfd->section_count * bfd_coff_scnhsz (abfd);
3061 #ifdef RS6000COFF_C
3062 /* XCOFF handles overflows in the reloc and line number count fields
3063 by allocating a new section header to hold the correct counts. */
3064 for (current = abfd->sections; current != NULL; current = current->next)
3065 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3066 sofar += bfd_coff_scnhsz (abfd);
3067 #endif
3069 #ifdef COFF_IMAGE_WITH_PE
3071 /* PE requires the sections to be in memory order when listed in
3072 the section headers. It also does not like empty loadable
3073 sections. The sections apparently do not have to be in the
3074 right order in the image file itself, but we do need to get the
3075 target_index values right. */
3077 unsigned int count;
3078 asection **section_list;
3079 unsigned int i;
3080 int target_index;
3081 bfd_size_type amt;
3083 count = 0;
3084 for (current = abfd->sections; current != NULL; current = current->next)
3085 ++count;
3087 /* We allocate an extra cell to simplify the final loop. */
3088 amt = sizeof (struct asection *) * (count + 1);
3089 section_list = bfd_malloc (amt);
3090 if (section_list == NULL)
3091 return FALSE;
3093 i = 0;
3094 for (current = abfd->sections; current != NULL; current = current->next)
3096 section_list[i] = current;
3097 ++i;
3099 section_list[i] = NULL;
3101 qsort (section_list, count, sizeof (asection *), sort_by_secaddr);
3103 /* Rethread the linked list into sorted order; at the same time,
3104 assign target_index values. */
3105 target_index = 1;
3106 abfd->sections = section_list[0];
3107 for (i = 0; i < count; i++)
3109 current = section_list[i];
3110 current->next = section_list[i + 1];
3112 /* Later, if the section has zero size, we'll be throwing it
3113 away, so we don't want to number it now. Note that having
3114 a zero size and having real contents are different
3115 concepts: .bss has no contents, but (usually) non-zero
3116 size. */
3117 if (current->_raw_size == 0)
3119 /* Discard. However, it still might have (valid) symbols
3120 in it, so arbitrarily set it to section 1 (indexing is
3121 1-based here; usually .text). __end__ and other
3122 contents of .endsection really have this happen.
3123 FIXME: This seems somewhat dubious. */
3124 current->target_index = 1;
3126 else
3127 current->target_index = target_index++;
3129 abfd->section_tail = &current->next;
3131 free (section_list);
3133 #else /* ! COFF_IMAGE_WITH_PE */
3135 /* Set the target_index field. */
3136 int target_index;
3138 target_index = 1;
3139 for (current = abfd->sections; current != NULL; current = current->next)
3140 current->target_index = target_index++;
3142 #endif /* ! COFF_IMAGE_WITH_PE */
3144 align_adjust = FALSE;
3145 for (current = abfd->sections;
3146 current != (asection *) NULL;
3147 current = current->next)
3149 #ifdef COFF_IMAGE_WITH_PE
3150 /* With PE we have to pad each section to be a multiple of its
3151 page size too, and remember both sizes. */
3152 if (coff_section_data (abfd, current) == NULL)
3154 bfd_size_type amt = sizeof (struct coff_section_tdata);
3155 current->used_by_bfd = (PTR) bfd_zalloc (abfd, amt);
3156 if (current->used_by_bfd == NULL)
3157 return FALSE;
3159 if (pei_section_data (abfd, current) == NULL)
3161 bfd_size_type amt = sizeof (struct pei_section_tdata);
3162 coff_section_data (abfd, current)->tdata
3163 = (PTR) bfd_zalloc (abfd, amt);
3164 if (coff_section_data (abfd, current)->tdata == NULL)
3165 return FALSE;
3167 if (pei_section_data (abfd, current)->virt_size == 0)
3168 pei_section_data (abfd, current)->virt_size = current->_raw_size;
3169 #endif
3171 /* Only deal with sections which have contents. */
3172 if (!(current->flags & SEC_HAS_CONTENTS))
3173 continue;
3175 #ifdef COFF_IMAGE_WITH_PE
3176 /* Make sure we skip empty sections in a PE image. */
3177 if (current->_raw_size == 0)
3178 continue;
3179 #endif
3181 /* Align the sections in the file to the same boundary on
3182 which they are aligned in virtual memory. I960 doesn't
3183 do this (FIXME) so we can stay in sync with Intel. 960
3184 doesn't yet page from files... */
3185 #ifdef ALIGN_SECTIONS_IN_FILE
3186 if ((abfd->flags & EXEC_P) != 0)
3188 /* Make sure this section is aligned on the right boundary - by
3189 padding the previous section up if necessary. */
3191 old_sofar = sofar;
3192 #ifdef RS6000COFF_C
3193 /* AIX loader checks the text section alignment of (vma - filepos)
3194 So even though the filepos may be aligned wrt the o_algntext, for
3195 AIX executables, this check fails. This shows up when a native
3196 AIX executable is stripped with gnu strip because the default vma
3197 of native is 0x10000150 but default for gnu is 0x10000140. Gnu
3198 stripped gnu excutable passes this check because the filepos is
3199 0x0140. This problem also show up with 64 bit shared objects. The
3200 data section must also be aligned. */
3201 if (!strcmp (current->name, _TEXT)
3202 || !strcmp (current->name, _DATA))
3204 bfd_vma pad;
3205 bfd_vma align;
3207 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3209 align = 1 << current->alignment_power;
3210 pad = abs (current->vma - sofar) % align;
3212 if (pad)
3214 pad = align - pad;
3215 sofar += pad;
3218 else
3219 #else
3221 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3223 #endif
3224 if (previous != (asection *) NULL)
3225 previous->_raw_size += sofar - old_sofar;
3228 #endif
3230 /* In demand paged files the low order bits of the file offset
3231 must match the low order bits of the virtual address. */
3232 #ifdef COFF_PAGE_SIZE
3233 if ((abfd->flags & D_PAGED) != 0
3234 && (current->flags & SEC_ALLOC) != 0)
3235 sofar += (current->vma - sofar) % page_size;
3236 #endif
3237 current->filepos = sofar;
3239 #ifdef COFF_IMAGE_WITH_PE
3240 /* Set the padded size. */
3241 current->_raw_size = (current->_raw_size + page_size -1) & -page_size;
3242 #endif
3244 sofar += current->_raw_size;
3246 #ifdef ALIGN_SECTIONS_IN_FILE
3247 /* Make sure that this section is of the right size too. */
3248 if ((abfd->flags & EXEC_P) == 0)
3250 bfd_size_type old_size;
3252 old_size = current->_raw_size;
3253 current->_raw_size = BFD_ALIGN (current->_raw_size,
3254 1 << current->alignment_power);
3255 align_adjust = current->_raw_size != old_size;
3256 sofar += current->_raw_size - old_size;
3258 else
3260 old_sofar = sofar;
3261 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3262 align_adjust = sofar != old_sofar;
3263 current->_raw_size += sofar - old_sofar;
3265 #endif
3267 #ifdef COFF_IMAGE_WITH_PE
3268 /* For PE we need to make sure we pad out to the aligned
3269 _raw_size, in case the caller only writes out data to the
3270 unaligned _raw_size. */
3271 if (pei_section_data (abfd, current)->virt_size < current->_raw_size)
3272 align_adjust = TRUE;
3273 #endif
3275 #ifdef _LIB
3276 /* Force .lib sections to start at zero. The vma is then
3277 incremented in coff_set_section_contents. This is right for
3278 SVR3.2. */
3279 if (strcmp (current->name, _LIB) == 0)
3280 bfd_set_section_vma (abfd, current, 0);
3281 #endif
3283 previous = current;
3286 /* It is now safe to write to the output file. If we needed an
3287 alignment adjustment for the last section, then make sure that
3288 there is a byte at offset sofar. If there are no symbols and no
3289 relocs, then nothing follows the last section. If we don't force
3290 the last byte out, then the file may appear to be truncated. */
3291 if (align_adjust)
3293 bfd_byte b;
3295 b = 0;
3296 if (bfd_seek (abfd, sofar - 1, SEEK_SET) != 0
3297 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
3298 return FALSE;
3301 /* Make sure the relocations are aligned. We don't need to make
3302 sure that this byte exists, because it will only matter if there
3303 really are relocs. */
3304 sofar = BFD_ALIGN (sofar, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER);
3306 obj_relocbase (abfd) = sofar;
3307 abfd->output_has_begun = TRUE;
3309 return TRUE;
3312 #if 0
3314 /* This can never work, because it is called too late--after the
3315 section positions have been set. I can't figure out what it is
3316 for, so I am going to disable it--Ian Taylor 20 March 1996. */
3318 /* If .file, .text, .data, .bss symbols are missing, add them. */
3319 /* @@ Should we only be adding missing symbols, or overriding the aux
3320 values for existing section symbols? */
3321 static bfd_boolean
3322 coff_add_missing_symbols (abfd)
3323 bfd *abfd;
3325 unsigned int nsyms = bfd_get_symcount (abfd);
3326 asymbol **sympp = abfd->outsymbols;
3327 asymbol **sympp2;
3328 unsigned int i;
3329 int need_text = 1, need_data = 1, need_bss = 1, need_file = 1;
3330 bfd_size_type amt;
3332 for (i = 0; i < nsyms; i++)
3334 coff_symbol_type *csym = coff_symbol_from (abfd, sympp[i]);
3335 const char *name;
3337 if (csym)
3339 /* Only do this if there is a coff representation of the input
3340 symbol. */
3341 if (csym->native && csym->native->u.syment.n_sclass == C_FILE)
3343 need_file = 0;
3344 continue;
3346 name = csym->symbol.name;
3347 if (!name)
3348 continue;
3349 if (!strcmp (name, _TEXT))
3350 need_text = 0;
3351 #ifdef APOLLO_M68
3352 else if (!strcmp (name, ".wtext"))
3353 need_text = 0;
3354 #endif
3355 else if (!strcmp (name, _DATA))
3356 need_data = 0;
3357 else if (!strcmp (name, _BSS))
3358 need_bss = 0;
3361 /* Now i == bfd_get_symcount (abfd). */
3362 /* @@ For now, don't deal with .file symbol. */
3363 need_file = 0;
3365 if (!need_text && !need_data && !need_bss && !need_file)
3366 return TRUE;
3367 nsyms += need_text + need_data + need_bss + need_file;
3368 amt = nsyms;
3369 amt *= sizeof (asymbol *);
3370 sympp2 = (asymbol **) bfd_alloc (abfd, amt);
3371 if (!sympp2)
3372 return FALSE;
3373 memcpy (sympp2, sympp, i * sizeof (asymbol *));
3375 if (need_file)
3376 /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */
3377 abort ();
3379 if (need_text)
3380 sympp2[i++] = coff_section_symbol (abfd, _TEXT);
3381 if (need_data)
3382 sympp2[i++] = coff_section_symbol (abfd, _DATA);
3383 if (need_bss)
3384 sympp2[i++] = coff_section_symbol (abfd, _BSS);
3385 BFD_ASSERT (i == nsyms);
3386 bfd_set_symtab (abfd, sympp2, nsyms);
3387 return TRUE;
3390 #endif /* 0 */
3392 #ifdef COFF_IMAGE_WITH_PE
3394 static unsigned int pelength;
3395 static unsigned int peheader;
3397 static bfd_boolean
3398 coff_read_word (abfd, value)
3399 bfd *abfd;
3400 unsigned int *value;
3402 unsigned char b[2];
3403 int status;
3405 status = bfd_bread (b, (bfd_size_type) 2, abfd);
3406 if (status < 1)
3408 *value = 0;
3409 return FALSE;
3412 if (status == 1)
3413 *value = (unsigned int) b[0];
3414 else
3415 *value = (unsigned int) (b[0] + (b[1] << 8));
3417 pelength += (unsigned int) status;
3419 return TRUE;
3422 static unsigned int
3423 coff_compute_checksum (abfd)
3424 bfd *abfd;
3426 bfd_boolean more_data;
3427 file_ptr filepos;
3428 unsigned int value;
3429 unsigned int total;
3431 total = 0;
3432 pelength = 0;
3433 filepos = (file_ptr) 0;
3437 if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
3438 return 0;
3440 more_data = coff_read_word (abfd, &value);
3441 total += value;
3442 total = 0xffff & (total + (total >> 0x10));
3443 filepos += 2;
3445 while (more_data);
3447 return (0xffff & (total + (total >> 0x10)));
3450 static bfd_boolean
3451 coff_apply_checksum (abfd)
3452 bfd *abfd;
3454 unsigned int computed;
3455 unsigned int checksum = 0;
3457 if (bfd_seek (abfd, 0x3c, SEEK_SET) != 0)
3458 return FALSE;
3460 if (!coff_read_word (abfd, &peheader))
3461 return FALSE;
3463 if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0)
3464 return FALSE;
3466 checksum = 0;
3467 bfd_bwrite (&checksum, (bfd_size_type) 4, abfd);
3469 if (bfd_seek (abfd, peheader, SEEK_SET) != 0)
3470 return FALSE;
3472 computed = coff_compute_checksum (abfd);
3474 checksum = computed + pelength;
3476 if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0)
3477 return FALSE;
3479 bfd_bwrite (&checksum, (bfd_size_type) 4, abfd);
3481 return TRUE;
3484 #endif /* COFF_IMAGE_WITH_PE */
3486 /* SUPPRESS 558 */
3487 /* SUPPRESS 529 */
3488 static bfd_boolean
3489 coff_write_object_contents (abfd)
3490 bfd * abfd;
3492 asection *current;
3493 bfd_boolean hasrelocs = FALSE;
3494 bfd_boolean haslinno = FALSE;
3495 bfd_boolean hasdebug = FALSE;
3496 file_ptr scn_base;
3497 file_ptr reloc_base;
3498 file_ptr lineno_base;
3499 file_ptr sym_base;
3500 unsigned long reloc_size = 0, reloc_count = 0;
3501 unsigned long lnno_size = 0;
3502 bfd_boolean long_section_names;
3503 asection *text_sec = NULL;
3504 asection *data_sec = NULL;
3505 asection *bss_sec = NULL;
3506 struct internal_filehdr internal_f;
3507 struct internal_aouthdr internal_a;
3508 #ifdef COFF_LONG_SECTION_NAMES
3509 size_t string_size = STRING_SIZE_SIZE;
3510 #endif
3512 bfd_set_error (bfd_error_system_call);
3514 /* Make a pass through the symbol table to count line number entries and
3515 put them into the correct asections. */
3517 lnno_size = coff_count_linenumbers (abfd) * bfd_coff_linesz (abfd);
3519 if (! abfd->output_has_begun)
3521 if (! coff_compute_section_file_positions (abfd))
3522 return FALSE;
3525 reloc_base = obj_relocbase (abfd);
3527 /* Work out the size of the reloc and linno areas. */
3529 for (current = abfd->sections; current != NULL; current =
3530 current->next)
3532 #ifdef COFF_WITH_PE
3533 /* We store the actual reloc count in the first reloc's addr. */
3534 if (obj_pe (abfd) && current->reloc_count >= 0xffff)
3535 reloc_count ++;
3536 #endif
3537 reloc_count += current->reloc_count;
3540 reloc_size = reloc_count * bfd_coff_relsz (abfd);
3542 lineno_base = reloc_base + reloc_size;
3543 sym_base = lineno_base + lnno_size;
3545 /* Indicate in each section->line_filepos its actual file address. */
3546 for (current = abfd->sections; current != NULL; current =
3547 current->next)
3549 if (current->lineno_count)
3551 current->line_filepos = lineno_base;
3552 current->moving_line_filepos = lineno_base;
3553 lineno_base += current->lineno_count * bfd_coff_linesz (abfd);
3555 else
3557 current->line_filepos = 0;
3559 if (current->reloc_count)
3561 current->rel_filepos = reloc_base;
3562 reloc_base += current->reloc_count * bfd_coff_relsz (abfd);
3563 #ifdef COFF_WITH_PE
3564 /* Extra reloc to hold real count. */
3565 if (obj_pe (abfd) && current->reloc_count >= 0xffff)
3566 reloc_base += bfd_coff_relsz (abfd);
3567 #endif
3569 else
3571 current->rel_filepos = 0;
3575 /* Write section headers to the file. */
3576 internal_f.f_nscns = 0;
3578 if ((abfd->flags & EXEC_P) != 0)
3579 scn_base = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd);
3580 else
3582 scn_base = bfd_coff_filhsz (abfd);
3583 #ifdef RS6000COFF_C
3584 #ifndef XCOFF64
3585 if (xcoff_data (abfd)->full_aouthdr)
3586 scn_base += bfd_coff_aoutsz (abfd);
3587 else
3588 scn_base += SMALL_AOUTSZ;
3589 #endif
3590 #endif
3593 if (bfd_seek (abfd, scn_base, SEEK_SET) != 0)
3594 return FALSE;
3596 long_section_names = FALSE;
3597 for (current = abfd->sections;
3598 current != NULL;
3599 current = current->next)
3601 struct internal_scnhdr section;
3602 bfd_boolean is_reloc_section = FALSE;
3604 #ifdef COFF_IMAGE_WITH_PE
3605 if (strcmp (current->name, ".reloc") == 0)
3607 is_reloc_section = TRUE;
3608 hasrelocs = TRUE;
3609 pe_data (abfd)->has_reloc_section = 1;
3611 #endif
3613 internal_f.f_nscns++;
3615 strncpy (section.s_name, current->name, SCNNMLEN);
3617 #ifdef COFF_LONG_SECTION_NAMES
3618 /* Handle long section names as in PE. This must be compatible
3619 with the code in coff_write_symbols and _bfd_coff_final_link. */
3621 size_t len;
3623 len = strlen (current->name);
3624 if (len > SCNNMLEN)
3626 memset (section.s_name, 0, SCNNMLEN);
3627 sprintf (section.s_name, "/%lu", (unsigned long) string_size);
3628 string_size += len + 1;
3629 long_section_names = TRUE;
3632 #endif
3634 #ifdef _LIB
3635 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3636 Ian Taylor <ian@cygnus.com>. */
3637 if (strcmp (current->name, _LIB) == 0)
3638 section.s_vaddr = 0;
3639 else
3640 #endif
3641 section.s_vaddr = current->vma;
3642 section.s_paddr = current->lma;
3643 section.s_size = current->_raw_size;
3644 #ifdef coff_get_section_load_page
3645 section.s_page = coff_get_section_load_page (current);
3646 #endif
3648 #ifdef COFF_WITH_PE
3649 section.s_paddr = 0;
3650 #endif
3651 #ifdef COFF_IMAGE_WITH_PE
3652 /* Reminder: s_paddr holds the virtual size of the section. */
3653 if (coff_section_data (abfd, current) != NULL
3654 && pei_section_data (abfd, current) != NULL)
3655 section.s_paddr = pei_section_data (abfd, current)->virt_size;
3656 else
3657 section.s_paddr = 0;
3658 #endif
3660 /* If this section has no size or is unloadable then the scnptr
3661 will be 0 too. */
3662 if (current->_raw_size == 0 ||
3663 (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
3664 section.s_scnptr = 0;
3665 else
3666 section.s_scnptr = current->filepos;
3668 section.s_relptr = current->rel_filepos;
3669 section.s_lnnoptr = current->line_filepos;
3670 section.s_nreloc = current->reloc_count;
3671 section.s_nlnno = current->lineno_count;
3672 #ifndef COFF_IMAGE_WITH_PE
3673 /* In PEI, relocs come in the .reloc section. */
3674 if (current->reloc_count != 0)
3675 hasrelocs = TRUE;
3676 #endif
3677 if (current->lineno_count != 0)
3678 haslinno = TRUE;
3679 if ((current->flags & SEC_DEBUGGING) != 0
3680 && ! is_reloc_section)
3681 hasdebug = TRUE;
3683 #ifdef RS6000COFF_C
3684 #ifndef XCOFF64
3685 /* Indicate the use of an XCOFF overflow section header. */
3686 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3688 section.s_nreloc = 0xffff;
3689 section.s_nlnno = 0xffff;
3691 #endif
3692 #endif
3694 section.s_flags = sec_to_styp_flags (current->name, current->flags);
3696 if (!strcmp (current->name, _TEXT))
3697 text_sec = current;
3698 else if (!strcmp (current->name, _DATA))
3699 data_sec = current;
3700 else if (!strcmp (current->name, _BSS))
3701 bss_sec = current;
3703 #ifdef I960
3704 section.s_align = (current->alignment_power
3705 ? 1 << current->alignment_power
3706 : 0);
3707 #endif
3708 #ifdef TIC80COFF
3709 /* TI COFF puts the alignment power in bits 8-11 of the flags. */
3710 section.s_flags |= (current->alignment_power & 0xF) << 8;
3711 #endif
3712 #ifdef COFF_ENCODE_ALIGNMENT
3713 COFF_ENCODE_ALIGNMENT(section, current->alignment_power);
3714 #endif
3716 #ifdef COFF_IMAGE_WITH_PE
3717 /* Suppress output of the sections if they are null. ld
3718 includes the bss and data sections even if there is no size
3719 assigned to them. NT loader doesn't like it if these section
3720 headers are included if the sections themselves are not
3721 needed. See also coff_compute_section_file_positions. */
3722 if (section.s_size == 0)
3723 internal_f.f_nscns--;
3724 else
3725 #endif
3727 SCNHDR buff;
3728 bfd_size_type amt = bfd_coff_scnhsz (abfd);
3730 if (coff_swap_scnhdr_out (abfd, &section, &buff) == 0
3731 || bfd_bwrite ((PTR) &buff, amt, abfd) != amt)
3732 return FALSE;
3735 #ifdef COFF_WITH_PE
3736 /* PE stores COMDAT section information in the symbol table. If
3737 this section is supposed to have some COMDAT info, track down
3738 the symbol in the symbol table and modify it. */
3739 if ((current->flags & SEC_LINK_ONCE) != 0)
3741 unsigned int i, count;
3742 asymbol **psym;
3743 coff_symbol_type *csym = NULL;
3744 asymbol **psymsec;
3746 psymsec = NULL;
3747 count = bfd_get_symcount (abfd);
3748 for (i = 0, psym = abfd->outsymbols; i < count; i++, psym++)
3750 if ((*psym)->section != current)
3751 continue;
3753 /* Remember the location of the first symbol in this
3754 section. */
3755 if (psymsec == NULL)
3756 psymsec = psym;
3758 /* See if this is the section symbol. */
3759 if (strcmp ((*psym)->name, current->name) == 0)
3761 csym = coff_symbol_from (abfd, *psym);
3762 if (csym == NULL
3763 || csym->native == NULL
3764 || csym->native->u.syment.n_numaux < 1
3765 || csym->native->u.syment.n_sclass != C_STAT
3766 || csym->native->u.syment.n_type != T_NULL)
3767 continue;
3769 /* Here *PSYM is the section symbol for CURRENT. */
3771 break;
3775 /* Did we find it?
3776 Note that we might not if we're converting the file from
3777 some other object file format. */
3778 if (i < count)
3780 combined_entry_type *aux;
3782 /* We don't touch the x_checksum field. The
3783 x_associated field is not currently supported. */
3785 aux = csym->native + 1;
3786 switch (current->flags & SEC_LINK_DUPLICATES)
3788 case SEC_LINK_DUPLICATES_DISCARD:
3789 aux->u.auxent.x_scn.x_comdat = IMAGE_COMDAT_SELECT_ANY;
3790 break;
3792 case SEC_LINK_DUPLICATES_ONE_ONLY:
3793 aux->u.auxent.x_scn.x_comdat =
3794 IMAGE_COMDAT_SELECT_NODUPLICATES;
3795 break;
3797 case SEC_LINK_DUPLICATES_SAME_SIZE:
3798 aux->u.auxent.x_scn.x_comdat =
3799 IMAGE_COMDAT_SELECT_SAME_SIZE;
3800 break;
3802 case SEC_LINK_DUPLICATES_SAME_CONTENTS:
3803 aux->u.auxent.x_scn.x_comdat =
3804 IMAGE_COMDAT_SELECT_EXACT_MATCH;
3805 break;
3808 /* The COMDAT symbol must be the first symbol from this
3809 section in the symbol table. In order to make this
3810 work, we move the COMDAT symbol before the first
3811 symbol we found in the search above. It's OK to
3812 rearrange the symbol table at this point, because
3813 coff_renumber_symbols is going to rearrange it
3814 further and fix up all the aux entries. */
3815 if (psym != psymsec)
3817 asymbol *hold;
3818 asymbol **pcopy;
3820 hold = *psym;
3821 for (pcopy = psym; pcopy > psymsec; pcopy--)
3822 pcopy[0] = pcopy[-1];
3823 *psymsec = hold;
3827 #endif /* COFF_WITH_PE */
3830 #ifdef RS6000COFF_C
3831 #ifndef XCOFF64
3832 /* XCOFF handles overflows in the reloc and line number count fields
3833 by creating a new section header to hold the correct values. */
3834 for (current = abfd->sections; current != NULL; current = current->next)
3836 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3838 struct internal_scnhdr scnhdr;
3839 SCNHDR buff;
3840 bfd_size_type amt;
3842 internal_f.f_nscns++;
3843 strncpy (&(scnhdr.s_name[0]), current->name, 8);
3844 scnhdr.s_paddr = current->reloc_count;
3845 scnhdr.s_vaddr = current->lineno_count;
3846 scnhdr.s_size = 0;
3847 scnhdr.s_scnptr = 0;
3848 scnhdr.s_relptr = current->rel_filepos;
3849 scnhdr.s_lnnoptr = current->line_filepos;
3850 scnhdr.s_nreloc = current->target_index;
3851 scnhdr.s_nlnno = current->target_index;
3852 scnhdr.s_flags = STYP_OVRFLO;
3853 amt = bfd_coff_scnhsz (abfd);
3854 if (coff_swap_scnhdr_out (abfd, &scnhdr, &buff) == 0
3855 || bfd_bwrite ((PTR) &buff, amt, abfd) != amt)
3856 return FALSE;
3859 #endif
3860 #endif
3862 /* OK, now set up the filehdr... */
3864 /* Don't include the internal abs section in the section count */
3866 /* We will NOT put a fucking timestamp in the header here. Every time you
3867 put it back, I will come in and take it out again. I'm sorry. This
3868 field does not belong here. We fill it with a 0 so it compares the
3869 same but is not a reasonable time. -- gnu@cygnus.com */
3870 internal_f.f_timdat = 0;
3871 internal_f.f_flags = 0;
3873 if (abfd->flags & EXEC_P)
3874 internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
3875 else
3877 internal_f.f_opthdr = 0;
3878 #ifdef RS6000COFF_C
3879 #ifndef XCOFF64
3880 if (xcoff_data (abfd)->full_aouthdr)
3881 internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
3882 else
3883 internal_f.f_opthdr = SMALL_AOUTSZ;
3884 #endif
3885 #endif
3888 if (!hasrelocs)
3889 internal_f.f_flags |= F_RELFLG;
3890 if (!haslinno)
3891 internal_f.f_flags |= F_LNNO;
3892 if (abfd->flags & EXEC_P)
3893 internal_f.f_flags |= F_EXEC;
3894 #ifdef COFF_IMAGE_WITH_PE
3895 if (! hasdebug)
3896 internal_f.f_flags |= IMAGE_FILE_DEBUG_STRIPPED;
3897 if (pe_data (abfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE)
3898 internal_f.f_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
3899 #endif
3901 #ifdef COFF_WITH_PE
3902 internal_f.f_flags |= IMAGE_FILE_32BIT_MACHINE;
3903 #else
3904 if (bfd_little_endian (abfd))
3905 internal_f.f_flags |= F_AR32WR;
3906 else
3907 internal_f.f_flags |= F_AR32W;
3908 #endif
3910 #ifdef TI_TARGET_ID
3911 /* Target id is used in TI COFF v1 and later; COFF0 won't use this field,
3912 but it doesn't hurt to set it internally. */
3913 internal_f.f_target_id = TI_TARGET_ID;
3914 #endif
3915 #ifdef TIC80_TARGET_ID
3916 internal_f.f_target_id = TIC80_TARGET_ID;
3917 #endif
3919 /* FIXME, should do something about the other byte orders and
3920 architectures. */
3922 #ifdef RS6000COFF_C
3923 if ((abfd->flags & DYNAMIC) != 0)
3924 internal_f.f_flags |= F_SHROBJ;
3925 if (bfd_get_section_by_name (abfd, _LOADER) != NULL)
3926 internal_f.f_flags |= F_DYNLOAD;
3927 #endif
3929 memset (&internal_a, 0, sizeof internal_a);
3931 /* Set up architecture-dependent stuff. */
3933 unsigned int magic = 0;
3934 unsigned short flags = 0;
3936 coff_set_flags (abfd, &magic, &flags);
3937 internal_f.f_magic = magic;
3938 internal_f.f_flags |= flags;
3939 /* ...and the "opt"hdr... */
3941 #ifdef A29K
3942 #ifdef ULTRA3 /* NYU's machine */
3943 /* FIXME: This is a bogus check. I really want to see if there
3944 is a .shbss or a .shdata section, if so then set the magic
3945 number to indicate a shared data executable. */
3946 if (internal_f.f_nscns >= 7)
3947 internal_a.magic = SHMAGIC; /* Shared magic. */
3948 else
3949 #endif /* ULTRA3 */
3950 internal_a.magic = NMAGIC; /* Assume separate i/d. */
3951 #define __A_MAGIC_SET__
3952 #endif /* A29K */
3953 #ifdef TICOFF_AOUT_MAGIC
3954 internal_a.magic = TICOFF_AOUT_MAGIC;
3955 #define __A_MAGIC_SET__
3956 #endif
3957 #ifdef TIC80COFF
3958 internal_a.magic = TIC80_ARCH_MAGIC;
3959 #define __A_MAGIC_SET__
3960 #endif /* TIC80 */
3961 #ifdef I860
3962 /* FIXME: What are the a.out magic numbers for the i860? */
3963 internal_a.magic = 0;
3964 #define __A_MAGIC_SET__
3965 #endif /* I860 */
3966 #ifdef I960
3967 internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC);
3968 #define __A_MAGIC_SET__
3969 #endif /* I960 */
3970 #if M88
3971 #define __A_MAGIC_SET__
3972 internal_a.magic = PAGEMAGICBCS;
3973 #endif /* M88 */
3975 #if APOLLO_M68
3976 #define __A_MAGIC_SET__
3977 internal_a.magic = APOLLO_COFF_VERSION_NUMBER;
3978 #endif
3980 #if defined(M68) || defined(WE32K) || defined(M68K)
3981 #define __A_MAGIC_SET__
3982 #if defined(LYNXOS)
3983 internal_a.magic = LYNXCOFFMAGIC;
3984 #else
3985 #if defined(TARG_AUX)
3986 internal_a.magic = (abfd->flags & D_PAGED ? PAGEMAGICPEXECPAGED :
3987 abfd->flags & WP_TEXT ? PAGEMAGICPEXECSWAPPED :
3988 PAGEMAGICEXECSWAPPED);
3989 #else
3990 #if defined (PAGEMAGICPEXECPAGED)
3991 internal_a.magic = PAGEMAGICPEXECPAGED;
3992 #endif
3993 #endif /* TARG_AUX */
3994 #endif /* LYNXOS */
3995 #endif /* M68 || WE32K || M68K */
3997 #if defined(ARM)
3998 #define __A_MAGIC_SET__
3999 internal_a.magic = ZMAGIC;
4000 #endif
4002 #if defined(PPC_PE)
4003 #define __A_MAGIC_SET__
4004 internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
4005 #endif
4007 #if defined MCORE_PE
4008 #define __A_MAGIC_SET__
4009 internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
4010 #endif
4012 #if defined(I386)
4013 #define __A_MAGIC_SET__
4014 #if defined(LYNXOS)
4015 internal_a.magic = LYNXCOFFMAGIC;
4016 #else /* LYNXOS */
4017 internal_a.magic = ZMAGIC;
4018 #endif /* LYNXOS */
4019 #endif /* I386 */
4021 #if defined(IA64)
4022 #define __A_MAGIC_SET__
4023 internal_a.magic = ZMAGIC;
4024 #endif /* IA64 */
4026 #if defined(SPARC)
4027 #define __A_MAGIC_SET__
4028 #if defined(LYNXOS)
4029 internal_a.magic = LYNXCOFFMAGIC;
4030 #endif /* LYNXOS */
4031 #endif /* SPARC */
4033 #ifdef RS6000COFF_C
4034 #define __A_MAGIC_SET__
4035 internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC :
4036 (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC :
4037 RS6K_AOUTHDR_OMAGIC;
4038 #endif
4040 #if defined(SH) && defined(COFF_WITH_PE)
4041 #define __A_MAGIC_SET__
4042 internal_a.magic = SH_PE_MAGIC;
4043 #endif
4045 #if defined(MIPS) && defined(COFF_WITH_PE)
4046 #define __A_MAGIC_SET__
4047 internal_a.magic = MIPS_PE_MAGIC;
4048 #endif
4050 #ifdef OR32
4051 #define __A_MAGIC_SET__
4052 internal_a.magic = NMAGIC; /* Assume separate i/d. */
4053 #endif
4055 #ifndef __A_MAGIC_SET__
4056 #include "Your aouthdr magic number is not being set!"
4057 #else
4058 #undef __A_MAGIC_SET__
4059 #endif
4062 /* FIXME: Does anybody ever set this to another value? */
4063 internal_a.vstamp = 0;
4065 /* Now should write relocs, strings, syms. */
4066 obj_sym_filepos (abfd) = sym_base;
4068 if (bfd_get_symcount (abfd) != 0)
4070 int firstundef;
4071 #if 0
4072 if (!coff_add_missing_symbols (abfd))
4073 return FALSE;
4074 #endif
4075 if (!coff_renumber_symbols (abfd, &firstundef))
4076 return FALSE;
4077 coff_mangle_symbols (abfd);
4078 if (! coff_write_symbols (abfd))
4079 return FALSE;
4080 if (! coff_write_linenumbers (abfd))
4081 return FALSE;
4082 if (! coff_write_relocs (abfd, firstundef))
4083 return FALSE;
4085 #ifdef COFF_LONG_SECTION_NAMES
4086 else if (long_section_names && ! obj_coff_strings_written (abfd))
4088 /* If we have long section names we have to write out the string
4089 table even if there are no symbols. */
4090 if (! coff_write_symbols (abfd))
4091 return FALSE;
4093 #endif
4094 #ifdef COFF_IMAGE_WITH_PE
4095 #ifdef PPC_PE
4096 else if ((abfd->flags & EXEC_P) != 0)
4098 bfd_byte b;
4100 /* PowerPC PE appears to require that all executable files be
4101 rounded up to the page size. */
4102 b = 0;
4103 if (bfd_seek (abfd,
4104 (file_ptr) BFD_ALIGN (sym_base, COFF_PAGE_SIZE) - 1,
4105 SEEK_SET) != 0
4106 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
4107 return FALSE;
4109 #endif
4110 #endif
4112 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
4113 backend linker, and obj_raw_syment_count is not valid until after
4114 coff_write_symbols is called. */
4115 if (obj_raw_syment_count (abfd) != 0)
4117 internal_f.f_symptr = sym_base;
4118 #ifdef RS6000COFF_C
4119 /* AIX appears to require that F_RELFLG not be set if there are
4120 local symbols but no relocations. */
4121 internal_f.f_flags &=~ F_RELFLG;
4122 #endif
4124 else
4126 if (long_section_names)
4127 internal_f.f_symptr = sym_base;
4128 else
4129 internal_f.f_symptr = 0;
4130 internal_f.f_flags |= F_LSYMS;
4133 if (text_sec)
4135 internal_a.tsize = bfd_get_section_size_before_reloc (text_sec);
4136 internal_a.text_start = internal_a.tsize ? text_sec->vma : 0;
4138 if (data_sec)
4140 internal_a.dsize = bfd_get_section_size_before_reloc (data_sec);
4141 internal_a.data_start = internal_a.dsize ? data_sec->vma : 0;
4143 if (bss_sec)
4145 internal_a.bsize = bfd_get_section_size_before_reloc (bss_sec);
4146 if (internal_a.bsize && bss_sec->vma < internal_a.data_start)
4147 internal_a.data_start = bss_sec->vma;
4150 internal_a.entry = bfd_get_start_address (abfd);
4151 internal_f.f_nsyms = obj_raw_syment_count (abfd);
4153 #ifdef RS6000COFF_C
4154 if (xcoff_data (abfd)->full_aouthdr)
4156 bfd_vma toc;
4157 asection *loader_sec;
4159 internal_a.vstamp = 1;
4161 internal_a.o_snentry = xcoff_data (abfd)->snentry;
4162 if (internal_a.o_snentry == 0)
4163 internal_a.entry = (bfd_vma) -1;
4165 if (text_sec != NULL)
4167 internal_a.o_sntext = text_sec->target_index;
4168 internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec);
4170 else
4172 internal_a.o_sntext = 0;
4173 internal_a.o_algntext = 0;
4175 if (data_sec != NULL)
4177 internal_a.o_sndata = data_sec->target_index;
4178 internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec);
4180 else
4182 internal_a.o_sndata = 0;
4183 internal_a.o_algndata = 0;
4185 loader_sec = bfd_get_section_by_name (abfd, ".loader");
4186 if (loader_sec != NULL)
4187 internal_a.o_snloader = loader_sec->target_index;
4188 else
4189 internal_a.o_snloader = 0;
4190 if (bss_sec != NULL)
4191 internal_a.o_snbss = bss_sec->target_index;
4192 else
4193 internal_a.o_snbss = 0;
4195 toc = xcoff_data (abfd)->toc;
4196 internal_a.o_toc = toc;
4197 internal_a.o_sntoc = xcoff_data (abfd)->sntoc;
4199 internal_a.o_modtype = xcoff_data (abfd)->modtype;
4200 if (xcoff_data (abfd)->cputype != -1)
4201 internal_a.o_cputype = xcoff_data (abfd)->cputype;
4202 else
4204 switch (bfd_get_arch (abfd))
4206 case bfd_arch_rs6000:
4207 internal_a.o_cputype = 4;
4208 break;
4209 case bfd_arch_powerpc:
4210 if (bfd_get_mach (abfd) == bfd_mach_ppc)
4211 internal_a.o_cputype = 3;
4212 else
4213 internal_a.o_cputype = 1;
4214 break;
4215 default:
4216 abort ();
4219 internal_a.o_maxstack = xcoff_data (abfd)->maxstack;
4220 internal_a.o_maxdata = xcoff_data (abfd)->maxdata;
4222 #endif
4224 /* now write them */
4225 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
4226 return FALSE;
4229 char * buff;
4230 bfd_size_type amount = bfd_coff_filhsz (abfd);
4232 buff = bfd_malloc (amount);
4233 if (buff == NULL)
4234 return FALSE;
4236 bfd_coff_swap_filehdr_out (abfd, (PTR) &internal_f, (PTR) buff);
4237 amount = bfd_bwrite ((PTR) buff, amount, abfd);
4239 free (buff);
4241 if (amount != bfd_coff_filhsz (abfd))
4242 return FALSE;
4245 if (abfd->flags & EXEC_P)
4247 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
4248 include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */
4249 char * buff;
4250 bfd_size_type amount = bfd_coff_aoutsz (abfd);
4252 buff = bfd_malloc (amount);
4253 if (buff == NULL)
4254 return FALSE;
4256 coff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) buff);
4257 amount = bfd_bwrite ((PTR) buff, amount, abfd);
4259 free (buff);
4261 if (amount != bfd_coff_aoutsz (abfd))
4262 return FALSE;
4264 #ifdef COFF_IMAGE_WITH_PE
4265 if (! coff_apply_checksum (abfd))
4266 return FALSE;
4267 #endif
4269 #ifdef RS6000COFF_C
4270 else
4272 AOUTHDR buff;
4273 size_t size;
4275 /* XCOFF seems to always write at least a small a.out header. */
4276 coff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) &buff);
4277 if (xcoff_data (abfd)->full_aouthdr)
4278 size = bfd_coff_aoutsz (abfd);
4279 else
4280 size = SMALL_AOUTSZ;
4281 if (bfd_bwrite ((PTR) &buff, (bfd_size_type) size, abfd) != size)
4282 return FALSE;
4284 #endif
4286 return TRUE;
4289 static bfd_boolean
4290 coff_set_section_contents (abfd, section, location, offset, count)
4291 bfd * abfd;
4292 sec_ptr section;
4293 const PTR location;
4294 file_ptr offset;
4295 bfd_size_type count;
4297 if (! abfd->output_has_begun) /* Set by bfd.c handler. */
4299 if (! coff_compute_section_file_positions (abfd))
4300 return FALSE;
4303 #if defined(_LIB) && !defined(TARG_AUX)
4305 /* The physical address field of a .lib section is used to hold the
4306 number of shared libraries in the section. This code counts the
4307 number of sections being written, and increments the lma field
4308 with the number.
4310 I have found no documentation on the contents of this section.
4311 Experimentation indicates that the section contains zero or more
4312 records, each of which has the following structure:
4314 - a (four byte) word holding the length of this record, in words,
4315 - a word that always seems to be set to "2",
4316 - the path to a shared library, null-terminated and then padded
4317 to a whole word boundary.
4319 bfd_assert calls have been added to alert if an attempt is made
4320 to write a section which doesn't follow these assumptions. The
4321 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
4322 <robertl@arnet.com> (Thanks!).
4324 Gvran Uddeborg <gvran@uddeborg.pp.se>. */
4326 if (strcmp (section->name, _LIB) == 0)
4328 bfd_byte *rec, *recend;
4330 rec = (bfd_byte *) location;
4331 recend = rec + count;
4332 while (rec < recend)
4334 ++section->lma;
4335 rec += bfd_get_32 (abfd, rec) * 4;
4338 BFD_ASSERT (rec == recend);
4341 #endif
4343 /* Don't write out bss sections - one way to do this is to
4344 see if the filepos has not been set. */
4345 if (section->filepos == 0)
4346 return TRUE;
4348 if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0)
4349 return FALSE;
4351 if (count == 0)
4352 return TRUE;
4354 return bfd_bwrite (location, count, abfd) == count;
4356 #if 0
4357 static bfd_boolean
4358 coff_close_and_cleanup (abfd)
4359 bfd *abfd;
4361 if (!bfd_read_p (abfd))
4362 switch (abfd->format)
4364 case bfd_archive:
4365 if (!_bfd_write_archive_contents (abfd))
4366 return FALSE;
4367 break;
4368 case bfd_object:
4369 if (!coff_write_object_contents (abfd))
4370 return FALSE;
4371 break;
4372 default:
4373 bfd_set_error (bfd_error_invalid_operation);
4374 return FALSE;
4377 /* We depend on bfd_close to free all the memory on the objalloc. */
4378 return TRUE;
4381 #endif
4383 static PTR
4384 buy_and_read (abfd, where, size)
4385 bfd *abfd;
4386 file_ptr where;
4387 bfd_size_type size;
4389 PTR area = (PTR) bfd_alloc (abfd, size);
4390 if (!area)
4391 return (NULL);
4392 if (bfd_seek (abfd, where, SEEK_SET) != 0
4393 || bfd_bread (area, size, abfd) != size)
4394 return (NULL);
4395 return (area);
4396 } /* buy_and_read() */
4399 SUBSUBSECTION
4400 Reading linenumbers
4402 Creating the linenumber table is done by reading in the entire
4403 coff linenumber table, and creating another table for internal use.
4405 A coff linenumber table is structured so that each function
4406 is marked as having a line number of 0. Each line within the
4407 function is an offset from the first line in the function. The
4408 base of the line number information for the table is stored in
4409 the symbol associated with the function.
4411 Note: The PE format uses line number 0 for a flag indicating a
4412 new source file.
4414 The information is copied from the external to the internal
4415 table, and each symbol which marks a function is marked by
4416 pointing its...
4418 How does this work ?
4422 static bfd_boolean
4423 coff_slurp_line_table (abfd, asect)
4424 bfd *abfd;
4425 asection *asect;
4427 LINENO *native_lineno;
4428 alent *lineno_cache;
4429 bfd_size_type amt;
4431 BFD_ASSERT (asect->lineno == (alent *) NULL);
4433 amt = (bfd_size_type) bfd_coff_linesz (abfd) * asect->lineno_count;
4434 native_lineno = (LINENO *) buy_and_read (abfd, asect->line_filepos, amt);
4435 if (native_lineno == NULL)
4437 (*_bfd_error_handler)
4438 (_("%s: warning: line number table read failed"),
4439 bfd_archive_filename (abfd));
4440 return FALSE;
4442 amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent);
4443 lineno_cache = (alent *) bfd_alloc (abfd, amt);
4444 if (lineno_cache == NULL)
4445 return FALSE;
4446 else
4448 unsigned int counter = 0;
4449 alent *cache_ptr = lineno_cache;
4450 LINENO *src = native_lineno;
4452 while (counter < asect->lineno_count)
4454 struct internal_lineno dst;
4456 bfd_coff_swap_lineno_in (abfd, src, &dst);
4457 cache_ptr->line_number = dst.l_lnno;
4459 if (cache_ptr->line_number == 0)
4461 bfd_boolean warned;
4462 bfd_signed_vma symndx;
4463 coff_symbol_type *sym;
4465 warned = FALSE;
4466 symndx = dst.l_addr.l_symndx;
4467 if (symndx < 0
4468 || (bfd_vma) symndx >= obj_raw_syment_count (abfd))
4470 (*_bfd_error_handler)
4471 (_("%s: warning: illegal symbol index %ld in line numbers"),
4472 bfd_archive_filename (abfd), dst.l_addr.l_symndx);
4473 symndx = 0;
4474 warned = TRUE;
4476 /* FIXME: We should not be casting between ints and
4477 pointers like this. */
4478 sym = ((coff_symbol_type *)
4479 ((symndx + obj_raw_syments (abfd))
4480 ->u.syment._n._n_n._n_zeroes));
4481 cache_ptr->u.sym = (asymbol *) sym;
4482 if (sym->lineno != NULL && ! warned)
4484 (*_bfd_error_handler)
4485 (_("%s: warning: duplicate line number information for `%s'"),
4486 bfd_archive_filename (abfd),
4487 bfd_asymbol_name (&sym->symbol));
4489 sym->lineno = cache_ptr;
4491 else
4493 cache_ptr->u.offset = dst.l_addr.l_paddr
4494 - bfd_section_vma (abfd, asect);
4495 } /* If no linenumber expect a symbol index */
4497 cache_ptr++;
4498 src++;
4499 counter++;
4501 cache_ptr->line_number = 0;
4504 asect->lineno = lineno_cache;
4505 /* FIXME, free native_lineno here, or use alloca or something. */
4506 return TRUE;
4509 /* Slurp in the symbol table, converting it to generic form. Note
4510 that if coff_relocate_section is defined, the linker will read
4511 symbols via coff_link_add_symbols, rather than via this routine. */
4513 static bfd_boolean
4514 coff_slurp_symbol_table (abfd)
4515 bfd * abfd;
4517 combined_entry_type *native_symbols;
4518 coff_symbol_type *cached_area;
4519 unsigned int *table_ptr;
4520 bfd_size_type amt;
4521 unsigned int number_of_symbols = 0;
4523 if (obj_symbols (abfd))
4524 return TRUE;
4526 /* Read in the symbol table. */
4527 if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL)
4528 return FALSE;
4530 /* Allocate enough room for all the symbols in cached form. */
4531 amt = obj_raw_syment_count (abfd);
4532 amt *= sizeof (coff_symbol_type);
4533 cached_area = (coff_symbol_type *) bfd_alloc (abfd, amt);
4534 if (cached_area == NULL)
4535 return FALSE;
4537 amt = obj_raw_syment_count (abfd);
4538 amt *= sizeof (unsigned int);
4539 table_ptr = (unsigned int *) bfd_alloc (abfd, amt);
4541 if (table_ptr == NULL)
4542 return FALSE;
4543 else
4545 coff_symbol_type *dst = cached_area;
4546 unsigned int last_native_index = obj_raw_syment_count (abfd);
4547 unsigned int this_index = 0;
4549 while (this_index < last_native_index)
4551 combined_entry_type *src = native_symbols + this_index;
4552 table_ptr[this_index] = number_of_symbols;
4553 dst->symbol.the_bfd = abfd;
4555 dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset);
4556 /* We use the native name field to point to the cached field. */
4557 src->u.syment._n._n_n._n_zeroes = (long) dst;
4558 dst->symbol.section = coff_section_from_bfd_index (abfd,
4559 src->u.syment.n_scnum);
4560 dst->symbol.flags = 0;
4561 dst->done_lineno = FALSE;
4563 switch (src->u.syment.n_sclass)
4565 #ifdef I960
4566 case C_LEAFEXT:
4567 #if 0
4568 dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma;
4569 dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
4570 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4571 #endif
4572 /* Fall through to next case. */
4573 #endif
4575 case C_EXT:
4576 case C_WEAKEXT:
4577 #if defined ARM
4578 case C_THUMBEXT:
4579 case C_THUMBEXTFUNC:
4580 #endif
4581 #ifdef RS6000COFF_C
4582 case C_HIDEXT:
4583 #endif
4584 #ifdef C_SYSTEM
4585 case C_SYSTEM: /* System Wide variable. */
4586 #endif
4587 #ifdef COFF_WITH_PE
4588 /* In PE, 0x68 (104) denotes a section symbol. */
4589 case C_SECTION:
4590 /* In PE, 0x69 (105) denotes a weak external symbol. */
4591 case C_NT_WEAK:
4592 #endif
4593 switch (coff_classify_symbol (abfd, &src->u.syment))
4595 case COFF_SYMBOL_GLOBAL:
4596 dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
4597 #if defined COFF_WITH_PE
4598 /* PE sets the symbol to a value relative to the
4599 start of the section. */
4600 dst->symbol.value = src->u.syment.n_value;
4601 #else
4602 dst->symbol.value = (src->u.syment.n_value
4603 - dst->symbol.section->vma);
4604 #endif
4605 if (ISFCN ((src->u.syment.n_type)))
4607 /* A function ext does not go at the end of a
4608 file. */
4609 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4611 break;
4613 case COFF_SYMBOL_COMMON:
4614 dst->symbol.section = bfd_com_section_ptr;
4615 dst->symbol.value = src->u.syment.n_value;
4616 break;
4618 case COFF_SYMBOL_UNDEFINED:
4619 dst->symbol.section = bfd_und_section_ptr;
4620 dst->symbol.value = 0;
4621 break;
4623 case COFF_SYMBOL_PE_SECTION:
4624 dst->symbol.flags |= BSF_EXPORT | BSF_SECTION_SYM;
4625 dst->symbol.value = 0;
4626 break;
4628 case COFF_SYMBOL_LOCAL:
4629 dst->symbol.flags = BSF_LOCAL;
4630 #if defined COFF_WITH_PE
4631 /* PE sets the symbol to a value relative to the
4632 start of the section. */
4633 dst->symbol.value = src->u.syment.n_value;
4634 #else
4635 dst->symbol.value = (src->u.syment.n_value
4636 - dst->symbol.section->vma);
4637 #endif
4638 if (ISFCN ((src->u.syment.n_type)))
4639 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4640 break;
4643 #ifdef RS6000COFF_C
4644 /* A symbol with a csect entry should not go at the end. */
4645 if (src->u.syment.n_numaux > 0)
4646 dst->symbol.flags |= BSF_NOT_AT_END;
4647 #endif
4649 #ifdef COFF_WITH_PE
4650 if (src->u.syment.n_sclass == C_NT_WEAK)
4651 dst->symbol.flags |= BSF_WEAK;
4653 if (src->u.syment.n_sclass == C_SECTION
4654 && src->u.syment.n_scnum > 0)
4655 dst->symbol.flags = BSF_LOCAL;
4656 #endif
4657 if (src->u.syment.n_sclass == C_WEAKEXT)
4658 dst->symbol.flags |= BSF_WEAK;
4660 break;
4662 case C_STAT: /* Static. */
4663 #ifdef I960
4664 case C_LEAFSTAT: /* Static leaf procedure. */
4665 #endif
4666 #if defined ARM
4667 case C_THUMBSTAT: /* Thumb static. */
4668 case C_THUMBLABEL: /* Thumb label. */
4669 case C_THUMBSTATFUNC:/* Thumb static function. */
4670 #endif
4671 case C_LABEL: /* Label. */
4672 if (src->u.syment.n_scnum == N_DEBUG)
4673 dst->symbol.flags = BSF_DEBUGGING;
4674 else
4675 dst->symbol.flags = BSF_LOCAL;
4677 /* Base the value as an index from the base of the
4678 section, if there is one. */
4679 if (dst->symbol.section)
4681 #if defined COFF_WITH_PE
4682 /* PE sets the symbol to a value relative to the
4683 start of the section. */
4684 dst->symbol.value = src->u.syment.n_value;
4685 #else
4686 dst->symbol.value = (src->u.syment.n_value
4687 - dst->symbol.section->vma);
4688 #endif
4690 else
4691 dst->symbol.value = src->u.syment.n_value;
4692 break;
4694 case C_MOS: /* Member of structure. */
4695 case C_EOS: /* End of structure. */
4696 #ifdef NOTDEF /* C_AUTOARG has the same value. */
4697 #ifdef C_GLBLREG
4698 case C_GLBLREG: /* A29k-specific storage class. */
4699 #endif
4700 #endif
4701 case C_REGPARM: /* Register parameter. */
4702 case C_REG: /* register variable. */
4703 /* C_AUTOARG conflicts with TI COFF C_UEXT. */
4704 #if !defined (TIC80COFF) && !defined (TICOFF)
4705 #ifdef C_AUTOARG
4706 case C_AUTOARG: /* 960-specific storage class. */
4707 #endif
4708 #endif
4709 case C_TPDEF: /* Type definition. */
4710 case C_ARG:
4711 case C_AUTO: /* Automatic variable. */
4712 case C_FIELD: /* Bit field. */
4713 case C_ENTAG: /* Enumeration tag. */
4714 case C_MOE: /* Member of enumeration. */
4715 case C_MOU: /* Member of union. */
4716 case C_UNTAG: /* Union tag. */
4717 dst->symbol.flags = BSF_DEBUGGING;
4718 dst->symbol.value = (src->u.syment.n_value);
4719 break;
4721 case C_FILE: /* File name. */
4722 case C_STRTAG: /* Structure tag. */
4723 #ifdef RS6000COFF_C
4724 case C_GSYM:
4725 case C_LSYM:
4726 case C_PSYM:
4727 case C_RSYM:
4728 case C_RPSYM:
4729 case C_STSYM:
4730 case C_TCSYM:
4731 case C_BCOMM:
4732 case C_ECOML:
4733 case C_ECOMM:
4734 case C_DECL:
4735 case C_ENTRY:
4736 case C_FUN:
4737 case C_ESTAT:
4738 #endif
4739 dst->symbol.flags = BSF_DEBUGGING;
4740 dst->symbol.value = (src->u.syment.n_value);
4741 break;
4743 #ifdef RS6000COFF_C
4744 case C_BINCL: /* Beginning of include file. */
4745 case C_EINCL: /* Ending of include file. */
4746 /* The value is actually a pointer into the line numbers
4747 of the file. We locate the line number entry, and
4748 set the section to the section which contains it, and
4749 the value to the index in that section. */
4751 asection *sec;
4753 dst->symbol.flags = BSF_DEBUGGING;
4754 for (sec = abfd->sections; sec != NULL; sec = sec->next)
4755 if (sec->line_filepos <= (file_ptr) src->u.syment.n_value
4756 && ((file_ptr) (sec->line_filepos
4757 + sec->lineno_count * bfd_coff_linesz (abfd))
4758 > (file_ptr) src->u.syment.n_value))
4759 break;
4760 if (sec == NULL)
4761 dst->symbol.value = 0;
4762 else
4764 dst->symbol.section = sec;
4765 dst->symbol.value = ((src->u.syment.n_value
4766 - sec->line_filepos)
4767 / bfd_coff_linesz (abfd));
4768 src->fix_line = 1;
4771 break;
4773 case C_BSTAT:
4774 dst->symbol.flags = BSF_DEBUGGING;
4776 /* The value is actually a symbol index. Save a pointer
4777 to the symbol instead of the index. FIXME: This
4778 should use a union. */
4779 src->u.syment.n_value =
4780 (long) (native_symbols + src->u.syment.n_value);
4781 dst->symbol.value = src->u.syment.n_value;
4782 src->fix_value = 1;
4783 break;
4784 #endif
4786 case C_BLOCK: /* ".bb" or ".eb". */
4787 case C_FCN: /* ".bf" or ".ef" (or PE ".lf"). */
4788 case C_EFCN: /* Physical end of function. */
4789 #if defined COFF_WITH_PE
4790 /* PE sets the symbol to a value relative to the start
4791 of the section. */
4792 dst->symbol.value = src->u.syment.n_value;
4793 if (strcmp (dst->symbol.name, ".bf") != 0)
4795 /* PE uses funny values for .ef and .lf; don't
4796 relocate them. */
4797 dst->symbol.flags = BSF_DEBUGGING;
4799 else
4800 dst->symbol.flags = BSF_DEBUGGING | BSF_DEBUGGING_RELOC;
4801 #else
4802 /* Base the value as an index from the base of the
4803 section. */
4804 dst->symbol.flags = BSF_LOCAL;
4805 dst->symbol.value = (src->u.syment.n_value
4806 - dst->symbol.section->vma);
4807 #endif
4808 break;
4810 case C_STATLAB: /* Static load time label. */
4811 dst->symbol.value = src->u.syment.n_value;
4812 dst->symbol.flags = BSF_GLOBAL;
4813 break;
4815 case C_NULL:
4816 /* PE DLLs sometimes have zeroed out symbols for some
4817 reason. Just ignore them without a warning. */
4818 if (src->u.syment.n_type == 0
4819 && src->u.syment.n_value == 0
4820 && src->u.syment.n_scnum == 0)
4821 break;
4822 /* Fall through. */
4823 case C_EXTDEF: /* External definition. */
4824 case C_ULABEL: /* Undefined label. */
4825 case C_USTATIC: /* Undefined static. */
4826 #ifndef COFF_WITH_PE
4827 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4828 class to represent a section symbol. */
4829 case C_LINE: /* line # reformatted as symbol table entry. */
4830 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4831 case C_ALIAS: /* Duplicate tag. */
4832 #endif
4833 /* New storage classes for TI COFF. */
4834 #if defined(TIC80COFF) || defined(TICOFF)
4835 case C_UEXT: /* Tentative external definition. */
4836 #endif
4837 case C_EXTLAB: /* External load time label. */
4838 case C_HIDDEN: /* Ext symbol in dmert public lib. */
4839 default:
4840 (*_bfd_error_handler)
4841 (_("%s: Unrecognized storage class %d for %s symbol `%s'"),
4842 bfd_archive_filename (abfd), src->u.syment.n_sclass,
4843 dst->symbol.section->name, dst->symbol.name);
4844 dst->symbol.flags = BSF_DEBUGGING;
4845 dst->symbol.value = (src->u.syment.n_value);
4846 break;
4849 /* BFD_ASSERT(dst->symbol.flags != 0);*/
4851 dst->native = src;
4853 dst->symbol.udata.i = 0;
4854 dst->lineno = (alent *) NULL;
4855 this_index += (src->u.syment.n_numaux) + 1;
4856 dst++;
4857 number_of_symbols++;
4861 obj_symbols (abfd) = cached_area;
4862 obj_raw_syments (abfd) = native_symbols;
4864 bfd_get_symcount (abfd) = number_of_symbols;
4865 obj_convert (abfd) = table_ptr;
4866 /* Slurp the line tables for each section too. */
4868 asection *p;
4870 p = abfd->sections;
4871 while (p)
4873 coff_slurp_line_table (abfd, p);
4874 p = p->next;
4878 return TRUE;
4879 } /* coff_slurp_symbol_table() */
4881 /* Classify a COFF symbol. A couple of targets have globally visible
4882 symbols which are not class C_EXT, and this handles those. It also
4883 recognizes some special PE cases. */
4885 static enum coff_symbol_classification
4886 coff_classify_symbol (abfd, syment)
4887 bfd *abfd;
4888 struct internal_syment *syment;
4890 /* FIXME: This partially duplicates the switch in
4891 coff_slurp_symbol_table. */
4892 switch (syment->n_sclass)
4894 case C_EXT:
4895 case C_WEAKEXT:
4896 #ifdef I960
4897 case C_LEAFEXT:
4898 #endif
4899 #ifdef ARM
4900 case C_THUMBEXT:
4901 case C_THUMBEXTFUNC:
4902 #endif
4903 #ifdef C_SYSTEM
4904 case C_SYSTEM:
4905 #endif
4906 #ifdef COFF_WITH_PE
4907 case C_NT_WEAK:
4908 #endif
4909 if (syment->n_scnum == 0)
4911 if (syment->n_value == 0)
4912 return COFF_SYMBOL_UNDEFINED;
4913 else
4914 return COFF_SYMBOL_COMMON;
4916 return COFF_SYMBOL_GLOBAL;
4918 default:
4919 break;
4922 #ifdef COFF_WITH_PE
4923 if (syment->n_sclass == C_STAT)
4925 if (syment->n_scnum == 0)
4927 /* The Microsoft compiler sometimes generates these if a
4928 small static function is inlined every time it is used.
4929 The function is discarded, but the symbol table entry
4930 remains. */
4931 return COFF_SYMBOL_LOCAL;
4934 #ifdef STRICT_PE_FORMAT
4935 /* This is correct for Microsoft generated objects, but it
4936 breaks gas generated objects. */
4938 if (syment->n_value == 0)
4940 asection *sec;
4941 char buf[SYMNMLEN + 1];
4943 sec = coff_section_from_bfd_index (abfd, syment->n_scnum);
4944 if (sec != NULL
4945 && (strcmp (bfd_get_section_name (abfd, sec),
4946 _bfd_coff_internal_syment_name (abfd, syment, buf))
4947 == 0))
4948 return COFF_SYMBOL_PE_SECTION;
4950 #endif
4952 return COFF_SYMBOL_LOCAL;
4955 if (syment->n_sclass == C_SECTION)
4957 /* In some cases in a DLL generated by the Microsoft linker, the
4958 n_value field will contain garbage. FIXME: This should
4959 probably be handled by the swapping function instead. */
4960 syment->n_value = 0;
4961 if (syment->n_scnum == 0)
4962 return COFF_SYMBOL_UNDEFINED;
4963 return COFF_SYMBOL_PE_SECTION;
4965 #endif /* COFF_WITH_PE */
4967 /* If it is not a global symbol, we presume it is a local symbol. */
4969 if (syment->n_scnum == 0)
4971 char buf[SYMNMLEN + 1];
4973 (*_bfd_error_handler)
4974 (_("warning: %s: local symbol `%s' has no section"),
4975 bfd_archive_filename (abfd),
4976 _bfd_coff_internal_syment_name (abfd, syment, buf));
4979 return COFF_SYMBOL_LOCAL;
4983 SUBSUBSECTION
4984 Reading relocations
4986 Coff relocations are easily transformed into the internal BFD form
4987 (@code{arelent}).
4989 Reading a coff relocation table is done in the following stages:
4991 o Read the entire coff relocation table into memory.
4993 o Process each relocation in turn; first swap it from the
4994 external to the internal form.
4996 o Turn the symbol referenced in the relocation's symbol index
4997 into a pointer into the canonical symbol table.
4998 This table is the same as the one returned by a call to
4999 @code{bfd_canonicalize_symtab}. The back end will call that
5000 routine and save the result if a canonicalization hasn't been done.
5002 o The reloc index is turned into a pointer to a howto
5003 structure, in a back end specific way. For instance, the 386
5004 and 960 use the @code{r_type} to directly produce an index
5005 into a howto table vector; the 88k subtracts a number from the
5006 @code{r_type} field and creates an addend field.
5010 #ifndef CALC_ADDEND
5011 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
5013 coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \
5014 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
5015 coffsym = (obj_symbols (abfd) \
5016 + (cache_ptr->sym_ptr_ptr - symbols)); \
5017 else if (ptr) \
5018 coffsym = coff_symbol_from (abfd, ptr); \
5019 if (coffsym != (coff_symbol_type *) NULL \
5020 && coffsym->native->u.syment.n_scnum == 0) \
5021 cache_ptr->addend = 0; \
5022 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
5023 && ptr->section != (asection *) NULL) \
5024 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
5025 else \
5026 cache_ptr->addend = 0; \
5028 #endif
5030 static bfd_boolean
5031 coff_slurp_reloc_table (abfd, asect, symbols)
5032 bfd * abfd;
5033 sec_ptr asect;
5034 asymbol ** symbols;
5036 RELOC *native_relocs;
5037 arelent *reloc_cache;
5038 arelent *cache_ptr;
5039 unsigned int idx;
5040 bfd_size_type amt;
5042 if (asect->relocation)
5043 return TRUE;
5044 if (asect->reloc_count == 0)
5045 return TRUE;
5046 if (asect->flags & SEC_CONSTRUCTOR)
5047 return TRUE;
5048 if (!coff_slurp_symbol_table (abfd))
5049 return FALSE;
5050 amt = (bfd_size_type) bfd_coff_relsz (abfd) * asect->reloc_count;
5051 native_relocs = (RELOC *) buy_and_read (abfd, asect->rel_filepos, amt);
5052 amt = (bfd_size_type) asect->reloc_count * sizeof (arelent);
5053 reloc_cache = (arelent *) bfd_alloc (abfd, amt);
5055 if (reloc_cache == NULL)
5056 return FALSE;
5058 for (idx = 0; idx < asect->reloc_count; idx++)
5060 struct internal_reloc dst;
5061 struct external_reloc *src;
5062 #ifndef RELOC_PROCESSING
5063 asymbol *ptr;
5064 #endif
5066 cache_ptr = reloc_cache + idx;
5067 src = native_relocs + idx;
5069 coff_swap_reloc_in (abfd, src, &dst);
5071 #ifdef RELOC_PROCESSING
5072 RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect);
5073 #else
5074 cache_ptr->address = dst.r_vaddr;
5076 if (dst.r_symndx != -1)
5078 if (dst.r_symndx < 0 || dst.r_symndx >= obj_conv_table_size (abfd))
5080 (*_bfd_error_handler)
5081 (_("%s: warning: illegal symbol index %ld in relocs"),
5082 bfd_archive_filename (abfd), dst.r_symndx);
5083 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
5084 ptr = NULL;
5086 else
5088 cache_ptr->sym_ptr_ptr = (symbols
5089 + obj_convert (abfd)[dst.r_symndx]);
5090 ptr = *(cache_ptr->sym_ptr_ptr);
5093 else
5095 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
5096 ptr = NULL;
5099 /* The symbols definitions that we have read in have been
5100 relocated as if their sections started at 0. But the offsets
5101 refering to the symbols in the raw data have not been
5102 modified, so we have to have a negative addend to compensate.
5104 Note that symbols which used to be common must be left alone. */
5106 /* Calculate any reloc addend by looking at the symbol. */
5107 CALC_ADDEND (abfd, ptr, dst, cache_ptr);
5109 cache_ptr->address -= asect->vma;
5110 /* !! cache_ptr->section = (asection *) NULL;*/
5112 /* Fill in the cache_ptr->howto field from dst.r_type. */
5113 RTYPE2HOWTO (cache_ptr, &dst);
5114 #endif /* RELOC_PROCESSING */
5116 if (cache_ptr->howto == NULL)
5118 (*_bfd_error_handler)
5119 (_("%s: illegal relocation type %d at address 0x%lx"),
5120 bfd_archive_filename (abfd), dst.r_type, (long) dst.r_vaddr);
5121 bfd_set_error (bfd_error_bad_value);
5122 return FALSE;
5126 asect->relocation = reloc_cache;
5127 return TRUE;
5130 #ifndef coff_rtype_to_howto
5131 #ifdef RTYPE2HOWTO
5133 /* Get the howto structure for a reloc. This is only used if the file
5134 including this one defines coff_relocate_section to be
5135 _bfd_coff_generic_relocate_section, so it is OK if it does not
5136 always work. It is the responsibility of the including file to
5137 make sure it is reasonable if it is needed. */
5139 static reloc_howto_type *coff_rtype_to_howto
5140 PARAMS ((bfd *, asection *, struct internal_reloc *,
5141 struct coff_link_hash_entry *, struct internal_syment *,
5142 bfd_vma *));
5144 static reloc_howto_type *
5145 coff_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
5146 bfd *abfd ATTRIBUTE_UNUSED;
5147 asection *sec ATTRIBUTE_UNUSED;
5148 struct internal_reloc *rel;
5149 struct coff_link_hash_entry *h ATTRIBUTE_UNUSED;
5150 struct internal_syment *sym ATTRIBUTE_UNUSED;
5151 bfd_vma *addendp ATTRIBUTE_UNUSED;
5153 arelent genrel;
5155 RTYPE2HOWTO (&genrel, rel);
5156 return genrel.howto;
5159 #else /* ! defined (RTYPE2HOWTO) */
5161 #define coff_rtype_to_howto NULL
5163 #endif /* ! defined (RTYPE2HOWTO) */
5164 #endif /* ! defined (coff_rtype_to_howto) */
5166 /* This is stupid. This function should be a boolean predicate. */
5167 static long
5168 coff_canonicalize_reloc (abfd, section, relptr, symbols)
5169 bfd * abfd;
5170 sec_ptr section;
5171 arelent ** relptr;
5172 asymbol ** symbols;
5174 arelent *tblptr = section->relocation;
5175 unsigned int count = 0;
5177 if (section->flags & SEC_CONSTRUCTOR)
5179 /* This section has relocs made up by us, they are not in the
5180 file, so take them out of their chain and place them into
5181 the data area provided. */
5182 arelent_chain *chain = section->constructor_chain;
5184 for (count = 0; count < section->reloc_count; count++)
5186 *relptr++ = &chain->relent;
5187 chain = chain->next;
5190 else
5192 if (! coff_slurp_reloc_table (abfd, section, symbols))
5193 return -1;
5195 tblptr = section->relocation;
5197 for (; count++ < section->reloc_count;)
5198 *relptr++ = tblptr++;
5200 *relptr = 0;
5201 return section->reloc_count;
5204 #ifdef GNU960
5205 file_ptr
5206 coff_sym_filepos (abfd)
5207 bfd *abfd;
5209 return obj_sym_filepos (abfd);
5211 #endif
5213 #ifndef coff_reloc16_estimate
5214 #define coff_reloc16_estimate dummy_reloc16_estimate
5216 static int dummy_reloc16_estimate
5217 PARAMS ((bfd *, asection *, arelent *, unsigned int,
5218 struct bfd_link_info *));
5220 static int
5221 dummy_reloc16_estimate (abfd, input_section, reloc, shrink, link_info)
5222 bfd *abfd ATTRIBUTE_UNUSED;
5223 asection *input_section ATTRIBUTE_UNUSED;
5224 arelent *reloc ATTRIBUTE_UNUSED;
5225 unsigned int shrink ATTRIBUTE_UNUSED;
5226 struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
5228 abort ();
5229 return 0;
5232 #endif
5234 #ifndef coff_reloc16_extra_cases
5236 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
5238 /* This works even if abort is not declared in any header file. */
5240 static void dummy_reloc16_extra_cases
5241 PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
5242 bfd_byte *, unsigned int *, unsigned int *));
5244 static void
5245 dummy_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr,
5246 dst_ptr)
5247 bfd *abfd ATTRIBUTE_UNUSED;
5248 struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
5249 struct bfd_link_order *link_order ATTRIBUTE_UNUSED;
5250 arelent *reloc ATTRIBUTE_UNUSED;
5251 bfd_byte *data ATTRIBUTE_UNUSED;
5252 unsigned int *src_ptr ATTRIBUTE_UNUSED;
5253 unsigned int *dst_ptr ATTRIBUTE_UNUSED;
5255 abort ();
5257 #endif
5259 #ifndef coff_bfd_link_hash_table_free
5260 #define coff_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
5261 #endif
5263 /* If coff_relocate_section is defined, we can use the optimized COFF
5264 backend linker. Otherwise we must continue to use the old linker. */
5265 #ifdef coff_relocate_section
5266 #ifndef coff_bfd_link_hash_table_create
5267 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
5268 #endif
5269 #ifndef coff_bfd_link_add_symbols
5270 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
5271 #endif
5272 #ifndef coff_bfd_final_link
5273 #define coff_bfd_final_link _bfd_coff_final_link
5274 #endif
5275 #else /* ! defined (coff_relocate_section) */
5276 #define coff_relocate_section NULL
5277 #ifndef coff_bfd_link_hash_table_create
5278 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
5279 #endif
5280 #ifndef coff_bfd_link_add_symbols
5281 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
5282 #endif
5283 #define coff_bfd_final_link _bfd_generic_final_link
5284 #endif /* ! defined (coff_relocate_section) */
5286 #define coff_bfd_link_just_syms _bfd_generic_link_just_syms
5287 #define coff_bfd_link_split_section _bfd_generic_link_split_section
5289 #ifndef coff_start_final_link
5290 #define coff_start_final_link NULL
5291 #endif
5293 #ifndef coff_adjust_symndx
5294 #define coff_adjust_symndx NULL
5295 #endif
5297 #ifndef coff_link_add_one_symbol
5298 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
5299 #endif
5301 #ifndef coff_link_output_has_begun
5303 static bfd_boolean coff_link_output_has_begun
5304 PARAMS ((bfd *, struct coff_final_link_info *));
5306 static bfd_boolean
5307 coff_link_output_has_begun (abfd, info)
5308 bfd * abfd;
5309 struct coff_final_link_info * info ATTRIBUTE_UNUSED;
5311 return abfd->output_has_begun;
5313 #endif
5315 #ifndef coff_final_link_postscript
5317 static bfd_boolean coff_final_link_postscript
5318 PARAMS ((bfd *, struct coff_final_link_info *));
5320 static bfd_boolean
5321 coff_final_link_postscript (abfd, pfinfo)
5322 bfd * abfd ATTRIBUTE_UNUSED;
5323 struct coff_final_link_info * pfinfo ATTRIBUTE_UNUSED;
5325 return TRUE;
5327 #endif
5329 #ifndef coff_SWAP_aux_in
5330 #define coff_SWAP_aux_in coff_swap_aux_in
5331 #endif
5332 #ifndef coff_SWAP_sym_in
5333 #define coff_SWAP_sym_in coff_swap_sym_in
5334 #endif
5335 #ifndef coff_SWAP_lineno_in
5336 #define coff_SWAP_lineno_in coff_swap_lineno_in
5337 #endif
5338 #ifndef coff_SWAP_aux_out
5339 #define coff_SWAP_aux_out coff_swap_aux_out
5340 #endif
5341 #ifndef coff_SWAP_sym_out
5342 #define coff_SWAP_sym_out coff_swap_sym_out
5343 #endif
5344 #ifndef coff_SWAP_lineno_out
5345 #define coff_SWAP_lineno_out coff_swap_lineno_out
5346 #endif
5347 #ifndef coff_SWAP_reloc_out
5348 #define coff_SWAP_reloc_out coff_swap_reloc_out
5349 #endif
5350 #ifndef coff_SWAP_filehdr_out
5351 #define coff_SWAP_filehdr_out coff_swap_filehdr_out
5352 #endif
5353 #ifndef coff_SWAP_aouthdr_out
5354 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
5355 #endif
5356 #ifndef coff_SWAP_scnhdr_out
5357 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
5358 #endif
5359 #ifndef coff_SWAP_reloc_in
5360 #define coff_SWAP_reloc_in coff_swap_reloc_in
5361 #endif
5362 #ifndef coff_SWAP_filehdr_in
5363 #define coff_SWAP_filehdr_in coff_swap_filehdr_in
5364 #endif
5365 #ifndef coff_SWAP_aouthdr_in
5366 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
5367 #endif
5368 #ifndef coff_SWAP_scnhdr_in
5369 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
5370 #endif
5372 static const bfd_coff_backend_data bfd_coff_std_swap_table =
5374 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5375 coff_SWAP_aux_out, coff_SWAP_sym_out,
5376 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5377 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5378 coff_SWAP_scnhdr_out,
5379 FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN,
5380 #ifdef COFF_LONG_FILENAMES
5381 TRUE,
5382 #else
5383 FALSE,
5384 #endif
5385 #ifdef COFF_LONG_SECTION_NAMES
5386 TRUE,
5387 #else
5388 FALSE,
5389 #endif
5390 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5391 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5392 TRUE,
5393 #else
5394 FALSE,
5395 #endif
5396 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5398 #else
5400 #endif
5401 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5402 coff_SWAP_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook,
5403 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5404 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5405 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5406 coff_classify_symbol, coff_compute_section_file_positions,
5407 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5408 coff_adjust_symndx, coff_link_add_one_symbol,
5409 coff_link_output_has_begun, coff_final_link_postscript
5412 #ifdef TICOFF
5413 /* COFF0 differs in file/section header size and relocation entry size. */
5414 static const bfd_coff_backend_data ticoff0_swap_table =
5416 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5417 coff_SWAP_aux_out, coff_SWAP_sym_out,
5418 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5419 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5420 coff_SWAP_scnhdr_out,
5421 FILHSZ_V0, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ_V0, LINESZ, FILNMLEN,
5422 #ifdef COFF_LONG_FILENAMES
5423 TRUE,
5424 #else
5425 FALSE,
5426 #endif
5427 #ifdef COFF_LONG_SECTION_NAMES
5428 TRUE,
5429 #else
5430 FALSE,
5431 #endif
5432 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5433 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5434 TRUE,
5435 #else
5436 FALSE,
5437 #endif
5438 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5440 #else
5442 #endif
5443 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5444 coff_SWAP_reloc_in, ticoff0_bad_format_hook, coff_set_arch_mach_hook,
5445 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5446 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5447 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5448 coff_classify_symbol, coff_compute_section_file_positions,
5449 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5450 coff_adjust_symndx, coff_link_add_one_symbol,
5451 coff_link_output_has_begun, coff_final_link_postscript
5453 #endif
5455 #ifdef TICOFF
5456 /* COFF1 differs in section header size. */
5457 static const bfd_coff_backend_data ticoff1_swap_table =
5459 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5460 coff_SWAP_aux_out, coff_SWAP_sym_out,
5461 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5462 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5463 coff_SWAP_scnhdr_out,
5464 FILHSZ, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN,
5465 #ifdef COFF_LONG_FILENAMES
5466 TRUE,
5467 #else
5468 FALSE,
5469 #endif
5470 #ifdef COFF_LONG_SECTION_NAMES
5471 TRUE,
5472 #else
5473 FALSE,
5474 #endif
5475 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5476 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5477 TRUE,
5478 #else
5479 FALSE,
5480 #endif
5481 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5483 #else
5485 #endif
5486 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5487 coff_SWAP_reloc_in, ticoff1_bad_format_hook, coff_set_arch_mach_hook,
5488 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5489 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5490 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5491 coff_classify_symbol, coff_compute_section_file_positions,
5492 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5493 coff_adjust_symndx, coff_link_add_one_symbol,
5494 coff_link_output_has_begun, coff_final_link_postscript
5496 #endif
5498 #ifndef coff_close_and_cleanup
5499 #define coff_close_and_cleanup _bfd_generic_close_and_cleanup
5500 #endif
5502 #ifndef coff_bfd_free_cached_info
5503 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
5504 #endif
5506 #ifndef coff_get_section_contents
5507 #define coff_get_section_contents _bfd_generic_get_section_contents
5508 #endif
5510 #ifndef coff_bfd_copy_private_symbol_data
5511 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
5512 #endif
5514 #ifndef coff_bfd_copy_private_section_data
5515 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
5516 #endif
5518 #ifndef coff_bfd_copy_private_bfd_data
5519 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
5520 #endif
5522 #ifndef coff_bfd_merge_private_bfd_data
5523 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
5524 #endif
5526 #ifndef coff_bfd_set_private_flags
5527 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
5528 #endif
5530 #ifndef coff_bfd_print_private_bfd_data
5531 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
5532 #endif
5534 #ifndef coff_bfd_is_local_label_name
5535 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
5536 #endif
5538 #ifndef coff_read_minisymbols
5539 #define coff_read_minisymbols _bfd_generic_read_minisymbols
5540 #endif
5542 #ifndef coff_minisymbol_to_symbol
5543 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
5544 #endif
5546 /* The reloc lookup routine must be supplied by each individual COFF
5547 backend. */
5548 #ifndef coff_bfd_reloc_type_lookup
5549 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5550 #endif
5552 #ifndef coff_bfd_get_relocated_section_contents
5553 #define coff_bfd_get_relocated_section_contents \
5554 bfd_generic_get_relocated_section_contents
5555 #endif
5557 #ifndef coff_bfd_relax_section
5558 #define coff_bfd_relax_section bfd_generic_relax_section
5559 #endif
5561 #ifndef coff_bfd_gc_sections
5562 #define coff_bfd_gc_sections bfd_generic_gc_sections
5563 #endif
5565 #ifndef coff_bfd_merge_sections
5566 #define coff_bfd_merge_sections bfd_generic_merge_sections
5567 #endif
5569 #ifndef coff_bfd_is_group_section
5570 #define coff_bfd_is_group_section bfd_generic_is_group_section
5571 #endif
5573 #ifndef coff_bfd_discard_group
5574 #define coff_bfd_discard_group bfd_generic_discard_group
5575 #endif
5577 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5578 const bfd_target VAR = \
5580 NAME , \
5581 bfd_target_coff_flavour, \
5582 BFD_ENDIAN_BIG, /* data byte order is big */ \
5583 BFD_ENDIAN_BIG, /* header byte order is big */ \
5584 /* object flags */ \
5585 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5586 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5587 /* section flags */ \
5588 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5589 UNDER, /* leading symbol underscore */ \
5590 '/', /* ar_pad_char */ \
5591 15, /* ar_max_namelen */ \
5593 /* Data conversion functions. */ \
5594 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5595 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5596 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5598 /* Header conversion functions. */ \
5599 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5600 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5601 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5603 /* bfd_check_format */ \
5604 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5605 _bfd_dummy_target }, \
5606 /* bfd_set_format */ \
5607 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5608 /* bfd_write_contents */ \
5609 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5610 bfd_false }, \
5612 BFD_JUMP_TABLE_GENERIC (coff), \
5613 BFD_JUMP_TABLE_COPY (coff), \
5614 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5615 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5616 BFD_JUMP_TABLE_SYMBOLS (coff), \
5617 BFD_JUMP_TABLE_RELOCS (coff), \
5618 BFD_JUMP_TABLE_WRITE (coff), \
5619 BFD_JUMP_TABLE_LINK (coff), \
5620 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5622 ALTERNATIVE, \
5624 SWAP_TABLE \
5627 #define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5628 const bfd_target VAR = \
5630 NAME , \
5631 bfd_target_coff_flavour, \
5632 BFD_ENDIAN_LITTLE, /* data byte order is little */ \
5633 BFD_ENDIAN_BIG, /* header byte order is big */ \
5634 /* object flags */ \
5635 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5636 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5637 /* section flags */ \
5638 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5639 UNDER, /* leading symbol underscore */ \
5640 '/', /* ar_pad_char */ \
5641 15, /* ar_max_namelen */ \
5643 /* Data conversion functions. */ \
5644 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5645 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5646 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5648 /* Header conversion functions. */ \
5649 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5650 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5651 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5653 /* bfd_check_format */ \
5654 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5655 _bfd_dummy_target }, \
5656 /* bfd_set_format */ \
5657 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5658 /* bfd_write_contents */ \
5659 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5660 bfd_false }, \
5662 BFD_JUMP_TABLE_GENERIC (coff), \
5663 BFD_JUMP_TABLE_COPY (coff), \
5664 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5665 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5666 BFD_JUMP_TABLE_SYMBOLS (coff), \
5667 BFD_JUMP_TABLE_RELOCS (coff), \
5668 BFD_JUMP_TABLE_WRITE (coff), \
5669 BFD_JUMP_TABLE_LINK (coff), \
5670 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5672 ALTERNATIVE, \
5674 SWAP_TABLE \
5677 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5678 const bfd_target VAR = \
5680 NAME , \
5681 bfd_target_coff_flavour, \
5682 BFD_ENDIAN_LITTLE, /* data byte order is little */ \
5683 BFD_ENDIAN_LITTLE, /* header byte order is little */ \
5684 /* object flags */ \
5685 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5686 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5687 /* section flags */ \
5688 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5689 UNDER, /* leading symbol underscore */ \
5690 '/', /* ar_pad_char */ \
5691 15, /* ar_max_namelen */ \
5693 /* Data conversion functions. */ \
5694 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5695 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5696 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5697 /* Header conversion functions. */ \
5698 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5699 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5700 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5701 /* bfd_check_format */ \
5702 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5703 _bfd_dummy_target }, \
5704 /* bfd_set_format */ \
5705 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5706 /* bfd_write_contents */ \
5707 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5708 bfd_false }, \
5710 BFD_JUMP_TABLE_GENERIC (coff), \
5711 BFD_JUMP_TABLE_COPY (coff), \
5712 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5713 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5714 BFD_JUMP_TABLE_SYMBOLS (coff), \
5715 BFD_JUMP_TABLE_RELOCS (coff), \
5716 BFD_JUMP_TABLE_WRITE (coff), \
5717 BFD_JUMP_TABLE_LINK (coff), \
5718 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5720 ALTERNATIVE, \
5722 SWAP_TABLE \