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252b5132 1/* Support for the generic parts of most COFF variants, for BFD.
7898deda 2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
ed781d5d 3 2000, 2001, 2002, 2003
252b5132
RH
4 Free Software Foundation, Inc.
5 Written by Cygnus Support.
6
ed781d5d 7 This file is part of BFD, the Binary File Descriptor library.
252b5132 8
ed781d5d
NC
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.
252b5132 13
ed781d5d
NC
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.
252b5132 18
ed781d5d
NC
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. */
252b5132
RH
22
23/*
24Most of this hacked by Steve Chamberlain,
25 sac@cygnus.com
26*/
27/*
28
29SECTION
30 coff backends
31
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.
36
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}.
46
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}.
51
52SUBSECTION
53 Porting to a new version of coff
54
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.
67
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.
76
77SUBSECTION
78 How the coff backend works
79
80SUBSUBSECTION
81 File layout
82
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.
89
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.
94
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}.
100
101 Some of the Coff targets then also have additional routines in
102 the target source file itself.
103
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.
112
113SUBSUBSECTION
114 Bit twiddling
115
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}
00692651 135 and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol
252b5132
RH
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.
147
148SUBSUBSECTION
149 Symbol reading
150
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".
155
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"}).
172
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.
178
252b5132
RH
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.
185
186 Any linenumbers are read from the coff file too, and attached
187 to the symbols which own the functions the linenumbers belong to.
188
189SUBSUBSECTION
190 Symbol writing
191
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.
197
198 When the symbols have come from a coff file then all the
199 debugging information is preserved.
200
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.
205
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.
211
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}.
222
223 o <<coff_mangle_symbols>>
224
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
ed781d5d 228 structured hierarchy required by coff. It changes each pointer
252b5132
RH
229 to a symbol into the index into the symbol table of the asymbol.
230
231 o <<coff_write_symbols>>
232
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.
236
237*/
238
239/*
240INTERNAL_DEFINITION
241 coff_symbol_type
242
243DESCRIPTION
244 The hidden information for an <<asymbol>> is described in a
245 <<combined_entry_type>>:
246
247CODE_FRAGMENT
248.
249.typedef struct coff_ptr_struct
250.{
dc810e39
AM
251. {* Remembers the offset from the first symbol in the file for
252. this symbol. Generated by coff_renumber_symbols. *}
253. unsigned int offset;
252b5132 254.
dc810e39
AM
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;
252b5132 258.
dc810e39
AM
259. {* Should the tag field of this symbol be renumbered.
260. Created by coff_pointerize_aux. *}
261. unsigned int fix_tag : 1;
252b5132 262.
dc810e39
AM
263. {* Should the endidx field of this symbol be renumbered.
264. Created by coff_pointerize_aux. *}
265. unsigned int fix_end : 1;
252b5132 266.
dc810e39
AM
267. {* Should the x_csect.x_scnlen field be renumbered.
268. Created by coff_pointerize_aux. *}
269. unsigned int fix_scnlen : 1;
252b5132 270.
dc810e39
AM
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;
252b5132 274.
dc810e39
AM
275. {* The container for the symbol structure as read and translated
276. from the file. *}
277. union
278. {
279. union internal_auxent auxent;
280. struct internal_syment syment;
281. } u;
252b5132
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282.} combined_entry_type;
283.
284.
285.{* Each canonical asymbol really looks like this: *}
286.
287.typedef struct coff_symbol_struct
288.{
dc810e39
AM
289. {* The actual symbol which the rest of BFD works with *}
290. asymbol symbol;
252b5132 291.
dc810e39
AM
292. {* A pointer to the hidden information for this symbol *}
293. combined_entry_type *native;
252b5132 294.
dc810e39
AM
295. {* A pointer to the linenumber information for this symbol *}
296. struct lineno_cache_entry *lineno;
252b5132 297.
dc810e39 298. {* Have the line numbers been relocated yet ? *}
b34976b6 299. bfd_boolean done_lineno;
252b5132
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300.} coff_symbol_type;
301
252b5132
RH
302*/
303
304#ifdef COFF_WITH_PE
305#include "peicode.h"
306#else
307#include "coffswap.h"
308#endif
309
310#define STRING_SIZE_SIZE (4)
311
b34976b6
AM
312static long sec_to_styp_flags
313 PARAMS ((const char *, flagword));
314static bfd_boolean styp_to_sec_flags
7c8ca0e4 315 PARAMS ((bfd *, PTR, const char *, asection *, flagword *));
b34976b6
AM
316static bfd_boolean coff_bad_format_hook
317 PARAMS ((bfd *, PTR));
5dccc1dd
ILT
318static void coff_set_custom_section_alignment
319 PARAMS ((bfd *, asection *, const struct coff_section_alignment_entry *,
8a1ad8e7 320 const unsigned int));
b34976b6
AM
321static bfd_boolean coff_new_section_hook
322 PARAMS ((bfd *, asection *));
323static bfd_boolean coff_set_arch_mach_hook
324 PARAMS ((bfd *, PTR));
325static bfd_boolean coff_write_relocs
326 PARAMS ((bfd *, int));
327static bfd_boolean coff_set_flags
252b5132 328 PARAMS ((bfd *, unsigned int *, unsigned short *));
b34976b6 329static bfd_boolean coff_set_arch_mach
dc810e39 330 PARAMS ((bfd *, enum bfd_architecture, unsigned long)) ATTRIBUTE_UNUSED;
b34976b6
AM
331static bfd_boolean coff_compute_section_file_positions
332 PARAMS ((bfd *));
333static bfd_boolean coff_write_object_contents
334 PARAMS ((bfd *)) ATTRIBUTE_UNUSED;
335static bfd_boolean coff_set_section_contents
252b5132 336 PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type));
b34976b6
AM
337static PTR buy_and_read
338 PARAMS ((bfd *, file_ptr, bfd_size_type));
339static bfd_boolean coff_slurp_line_table
340 PARAMS ((bfd *, asection *));
341static bfd_boolean coff_slurp_symbol_table
342 PARAMS ((bfd *));
5d54c628
ILT
343static enum coff_symbol_classification coff_classify_symbol
344 PARAMS ((bfd *, struct internal_syment *));
b34976b6
AM
345static bfd_boolean coff_slurp_reloc_table
346 PARAMS ((bfd *, asection *, asymbol **));
252b5132
RH
347static long coff_canonicalize_reloc
348 PARAMS ((bfd *, asection *, arelent **, asymbol **));
349#ifndef coff_mkobject_hook
b34976b6
AM
350static PTR coff_mkobject_hook
351 PARAMS ((bfd *, PTR, PTR));
252b5132 352#endif
1276aefa 353#ifdef COFF_WITH_PE
b34976b6
AM
354static flagword handle_COMDAT
355 PARAMS ((bfd *, flagword, PTR, const char *, asection *));
1276aefa 356#endif
05793179 357#ifdef COFF_IMAGE_WITH_PE
b34976b6
AM
358static bfd_boolean coff_read_word
359 PARAMS ((bfd *, unsigned int *));
360static unsigned int coff_compute_checksum
361 PARAMS ((bfd *));
362static bfd_boolean coff_apply_checksum
363 PARAMS ((bfd *));
05793179 364#endif
5a5b9651
SS
365#ifdef TICOFF
366static bfd_boolean ticoff0_bad_format_hook
367 PARAMS ((bfd *, PTR ));
368static bfd_boolean ticoff1_bad_format_hook
369 PARAMS ((bfd *, PTR ));
370#endif
252b5132
RH
371\f
372/* void warning(); */
373
41733515
ILT
374/* Return a word with STYP_* (scnhdr.s_flags) flags set to represent
375 the incoming SEC_* flags. The inverse of this function is
376 styp_to_sec_flags(). NOTE: If you add to/change this routine, you
377 should probably mirror the changes in styp_to_sec_flags(). */
378
379#ifndef COFF_WITH_PE
380
51db3708
NC
381/* Macros for setting debugging flags. */
382#ifdef STYP_DEBUG
383#define STYP_XCOFF_DEBUG STYP_DEBUG
384#else
385#define STYP_XCOFF_DEBUG STYP_INFO
386#endif
387
388#ifdef COFF_ALIGN_IN_S_FLAGS
389#define STYP_DEBUG_INFO STYP_DSECT
390#else
391#define STYP_DEBUG_INFO STYP_INFO
392#endif
393
252b5132
RH
394static long
395sec_to_styp_flags (sec_name, sec_flags)
dc810e39 396 const char *sec_name;
252b5132
RH
397 flagword sec_flags;
398{
399 long styp_flags = 0;
400
401 if (!strcmp (sec_name, _TEXT))
402 {
403 styp_flags = STYP_TEXT;
404 }
405 else if (!strcmp (sec_name, _DATA))
406 {
407 styp_flags = STYP_DATA;
408 }
409 else if (!strcmp (sec_name, _BSS))
410 {
411 styp_flags = STYP_BSS;
412#ifdef _COMMENT
413 }
414 else if (!strcmp (sec_name, _COMMENT))
415 {
416 styp_flags = STYP_INFO;
417#endif /* _COMMENT */
418#ifdef _LIB
419 }
420 else if (!strcmp (sec_name, _LIB))
421 {
422 styp_flags = STYP_LIB;
423#endif /* _LIB */
424#ifdef _LIT
425 }
426 else if (!strcmp (sec_name, _LIT))
427 {
428 styp_flags = STYP_LIT;
429#endif /* _LIT */
430 }
51db3708 431 else if (!strncmp (sec_name, ".debug", 6))
252b5132 432 {
51db3708
NC
433 /* Handle the XCOFF debug section and DWARF2 debug sections. */
434 if (!sec_name[6])
435 styp_flags = STYP_XCOFF_DEBUG;
436 else
437 styp_flags = STYP_DEBUG_INFO;
252b5132
RH
438 }
439 else if (!strncmp (sec_name, ".stab", 5))
440 {
51db3708
NC
441 styp_flags = STYP_DEBUG_INFO;
442 }
443#ifdef COFF_LONG_SECTION_NAMES
444 else if (!strncmp (sec_name, ".gnu.linkonce.wi.", 17))
445 {
446 styp_flags = STYP_DEBUG_INFO;
252b5132 447 }
51db3708 448#endif
252b5132
RH
449#ifdef RS6000COFF_C
450 else if (!strcmp (sec_name, _PAD))
451 {
452 styp_flags = STYP_PAD;
453 }
454 else if (!strcmp (sec_name, _LOADER))
455 {
456 styp_flags = STYP_LOADER;
457 }
67fdeebe
TR
458 else if (!strcmp (sec_name, _EXCEPT))
459 {
460 styp_flags = STYP_EXCEPT;
461 }
462 else if (!strcmp (sec_name, _TYPCHK))
463 {
464 styp_flags = STYP_TYPCHK;
465 }
252b5132
RH
466#endif
467 /* Try and figure out what it should be */
468 else if (sec_flags & SEC_CODE)
469 {
470 styp_flags = STYP_TEXT;
471 }
472 else if (sec_flags & SEC_DATA)
473 {
474 styp_flags = STYP_DATA;
475 }
476 else if (sec_flags & SEC_READONLY)
477 {
478#ifdef STYP_LIT /* 29k readonly text/data section */
479 styp_flags = STYP_LIT;
480#else
481 styp_flags = STYP_TEXT;
482#endif /* STYP_LIT */
483 }
484 else if (sec_flags & SEC_LOAD)
485 {
486 styp_flags = STYP_TEXT;
487 }
488 else if (sec_flags & SEC_ALLOC)
489 {
490 styp_flags = STYP_BSS;
491 }
492
34cbe64e
TW
493#ifdef STYP_CLINK
494 if (sec_flags & SEC_CLINK)
495 styp_flags |= STYP_CLINK;
496#endif
497
498#ifdef STYP_BLOCK
499 if (sec_flags & SEC_BLOCK)
500 styp_flags |= STYP_BLOCK;
501#endif
502
252b5132
RH
503#ifdef STYP_NOLOAD
504 if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0)
505 styp_flags |= STYP_NOLOAD;
506#endif
507
41733515
ILT
508 return styp_flags;
509}
510
511#else /* COFF_WITH_PE */
512
513/* The PE version; see above for the general comments. The non-PE
514 case seems to be more guessing, and breaks PE format; specifically,
515 .rdata is readonly, but it sure ain't text. Really, all this
516 should be set up properly in gas (or whatever assembler is in use),
517 and honor whatever objcopy/strip, etc. sent us as input. */
518
519static long
520sec_to_styp_flags (sec_name, sec_flags)
521 const char *sec_name ATTRIBUTE_UNUSED;
522 flagword sec_flags;
523{
524 long styp_flags = 0;
525
526 /* caution: there are at least three groups of symbols that have
527 very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*.
528 SEC_* are the BFD internal flags, used for generic BFD
529 information. STYP_* are the COFF section flags which appear in
530 COFF files. IMAGE_SCN_* are the PE section flags which appear in
531 PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap,
532 but there are more IMAGE_SCN_* flags. */
533
534 /* skip LOAD */
535 /* READONLY later */
536 /* skip RELOC */
537 if ((sec_flags & SEC_CODE) != 0)
538 styp_flags |= IMAGE_SCN_CNT_CODE;
539 if ((sec_flags & SEC_DATA) != 0)
540 styp_flags |= IMAGE_SCN_CNT_INITIALIZED_DATA;
541 if ((sec_flags & SEC_ALLOC) != 0 && (sec_flags & SEC_LOAD) == 0)
542 styp_flags |= IMAGE_SCN_CNT_UNINITIALIZED_DATA; /* ==STYP_BSS */
543 /* skip ROM */
dc810e39 544 /* skip constRUCTOR */
41733515
ILT
545 /* skip CONTENTS */
546#ifdef STYP_NOLOAD
547 if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0)
548 styp_flags |= STYP_NOLOAD;
549#endif
550 if ((sec_flags & SEC_IS_COMMON) != 0)
252b5132 551 styp_flags |= IMAGE_SCN_LNK_COMDAT;
41733515
ILT
552 if ((sec_flags & SEC_DEBUGGING) != 0)
553 styp_flags |= IMAGE_SCN_MEM_DISCARDABLE;
554 if ((sec_flags & SEC_EXCLUDE) != 0)
555 styp_flags |= IMAGE_SCN_LNK_REMOVE;
556 if ((sec_flags & SEC_NEVER_LOAD) != 0)
557 styp_flags |= IMAGE_SCN_LNK_REMOVE;
558 /* skip IN_MEMORY */
559 /* skip SORT */
e60b52c6
KH
560 if (sec_flags & SEC_LINK_ONCE)
561 styp_flags |= IMAGE_SCN_LNK_COMDAT;
41733515
ILT
562 /* skip LINK_DUPLICATES */
563 /* skip LINKER_CREATED */
564
565 /* For now, the read/write bits are mapped onto SEC_READONLY, even
566 though the semantics don't quite match. The bits from the input
ed781d5d 567 are retained in pei_section_data(abfd, section)->pe_flags. */
41733515 568
ed781d5d 569 styp_flags |= IMAGE_SCN_MEM_READ; /* Always readable. */
41733515 570 if ((sec_flags & SEC_READONLY) == 0)
ed781d5d 571 styp_flags |= IMAGE_SCN_MEM_WRITE; /* Invert READONLY for write. */
41733515 572 if (sec_flags & SEC_CODE)
ed781d5d 573 styp_flags |= IMAGE_SCN_MEM_EXECUTE; /* CODE->EXECUTE. */
bd826630 574 if (sec_flags & SEC_SHARED)
ed781d5d 575 styp_flags |= IMAGE_SCN_MEM_SHARED; /* Shared remains meaningful. */
252b5132 576
e60b52c6 577 return styp_flags;
252b5132 578}
41733515
ILT
579
580#endif /* COFF_WITH_PE */
581
582/* Return a word with SEC_* flags set to represent the incoming STYP_*
583 flags (from scnhdr.s_flags). The inverse of this function is
584 sec_to_styp_flags(). NOTE: If you add to/change this routine, you
585 should probably mirror the changes in sec_to_styp_flags(). */
586
587#ifndef COFF_WITH_PE
588
b34976b6 589static bfd_boolean
7c8ca0e4 590styp_to_sec_flags (abfd, hdr, name, section, flags_ptr)
5f771d47 591 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH
592 PTR hdr;
593 const char *name;
41733515 594 asection *section ATTRIBUTE_UNUSED;
7c8ca0e4 595 flagword *flags_ptr;
252b5132
RH
596{
597 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
598 long styp_flags = internal_s->s_flags;
599 flagword sec_flags = 0;
600
34cbe64e
TW
601#ifdef STYP_BLOCK
602 if (styp_flags & STYP_BLOCK)
7c8ca0e4 603 sec_flags |= SEC_BLOCK;
e60b52c6 604#endif
34cbe64e
TW
605
606#ifdef STYP_CLINK
607 if (styp_flags & STYP_CLINK)
7c8ca0e4 608 sec_flags |= SEC_CLINK;
e60b52c6 609#endif
34cbe64e 610
252b5132
RH
611#ifdef STYP_NOLOAD
612 if (styp_flags & STYP_NOLOAD)
7c8ca0e4 613 sec_flags |= SEC_NEVER_LOAD;
252b5132
RH
614#endif /* STYP_NOLOAD */
615
616 /* For 386 COFF, at least, an unloadable text or data section is
617 actually a shared library section. */
618 if (styp_flags & STYP_TEXT)
619 {
620 if (sec_flags & SEC_NEVER_LOAD)
621 sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY;
622 else
623 sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
624 }
625 else if (styp_flags & STYP_DATA)
626 {
627 if (sec_flags & SEC_NEVER_LOAD)
628 sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
629 else
630 sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
631 }
632 else if (styp_flags & STYP_BSS)
633 {
634#ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
635 if (sec_flags & SEC_NEVER_LOAD)
636 sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY;
637 else
638#endif
639 sec_flags |= SEC_ALLOC;
640 }
641 else if (styp_flags & STYP_INFO)
642 {
643 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
644 defined. coff_compute_section_file_positions uses
645 COFF_PAGE_SIZE to ensure that the low order bits of the
646 section VMA and the file offset match. If we don't know
647 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
648 and demand page loading of the file will fail. */
649#if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS)
650 sec_flags |= SEC_DEBUGGING;
651#endif
652 }
653 else if (styp_flags & STYP_PAD)
7c8ca0e4 654 sec_flags = 0;
252b5132
RH
655 else if (strcmp (name, _TEXT) == 0)
656 {
657 if (sec_flags & SEC_NEVER_LOAD)
658 sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY;
659 else
660 sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
661 }
662 else if (strcmp (name, _DATA) == 0)
663 {
664 if (sec_flags & SEC_NEVER_LOAD)
665 sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
666 else
667 sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
668 }
669 else if (strcmp (name, _BSS) == 0)
670 {
671#ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
672 if (sec_flags & SEC_NEVER_LOAD)
673 sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY;
674 else
675#endif
676 sec_flags |= SEC_ALLOC;
677 }
51db3708 678 else if (strncmp (name, ".debug", 6) == 0
252b5132
RH
679#ifdef _COMMENT
680 || strcmp (name, _COMMENT) == 0
51db3708
NC
681#endif
682#ifdef COFF_LONG_SECTION_NAMES
683 || strncmp (name, ".gnu.linkonce.wi.", 17) == 0
252b5132
RH
684#endif
685 || strncmp (name, ".stab", 5) == 0)
686 {
687#ifdef COFF_PAGE_SIZE
688 sec_flags |= SEC_DEBUGGING;
689#endif
690 }
691#ifdef _LIB
692 else if (strcmp (name, _LIB) == 0)
693 ;
694#endif
695#ifdef _LIT
696 else if (strcmp (name, _LIT) == 0)
7c8ca0e4 697 sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY;
252b5132
RH
698#endif
699 else
7c8ca0e4 700 sec_flags |= SEC_ALLOC | SEC_LOAD;
252b5132 701
ed781d5d 702#ifdef STYP_LIT /* A29k readonly text/data section type. */
252b5132 703 if ((styp_flags & STYP_LIT) == STYP_LIT)
7c8ca0e4 704 sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY);
252b5132 705#endif /* STYP_LIT */
7c8ca0e4 706
ed781d5d 707#ifdef STYP_OTHER_LOAD /* Other loaded sections. */
252b5132 708 if (styp_flags & STYP_OTHER_LOAD)
7c8ca0e4 709 sec_flags = (SEC_LOAD | SEC_ALLOC);
252b5132
RH
710#endif /* STYP_SDATA */
711
41733515
ILT
712#if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
713 /* As a GNU extension, if the name begins with .gnu.linkonce, we
714 only link a single copy of the section. This is used to support
715 g++. g++ will emit each template expansion in its own section.
716 The symbols will be defined as weak, so that multiple definitions
717 are permitted. The GNU linker extension is to actually discard
718 all but one of the sections. */
719 if (strncmp (name, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0)
720 sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
721#endif
722
7c8ca0e4 723 if (flags_ptr == NULL)
b34976b6 724 return FALSE;
7c8ca0e4
NC
725
726 * flags_ptr = sec_flags;
b34976b6 727 return TRUE;
41733515
ILT
728}
729
730#else /* COFF_WITH_PE */
731
41733515 732static flagword
1276aefa
NC
733handle_COMDAT (abfd, sec_flags, hdr, name, section)
734 bfd * abfd;
735 flagword sec_flags;
41733515
ILT
736 PTR hdr;
737 const char *name;
738 asection *section;
739{
740 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
1276aefa
NC
741 bfd_byte *esymstart, *esym, *esymend;
742 int seen_state = 0;
743 char *target_name = NULL;
744
745 sec_flags |= SEC_LINK_ONCE;
746
747 /* Unfortunately, the PE format stores essential information in
748 the symbol table, of all places. We need to extract that
749 information now, so that objdump and the linker will know how
750 to handle the section without worrying about the symbols. We
751 can't call slurp_symtab, because the linker doesn't want the
752 swapped symbols. */
753
754 /* COMDAT sections are special. The first symbol is the section
755 symbol, which tells what kind of COMDAT section it is. The
756 second symbol is the "comdat symbol" - the one with the
757 unique name. GNU uses the section symbol for the unique
758 name; MS uses ".text" for every comdat section. Sigh. - DJ */
759
760 /* This is not mirrored in sec_to_styp_flags(), but there
761 doesn't seem to be a need to, either, and it would at best be
762 rather messy. */
763
764 if (! _bfd_coff_get_external_symbols (abfd))
765 return sec_flags;
dc810e39 766
1276aefa
NC
767 esymstart = esym = (bfd_byte *) obj_coff_external_syms (abfd);
768 esymend = esym + obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd);
769
770 while (esym < esymend)
41733515 771 {
1276aefa
NC
772 struct internal_syment isym;
773 char buf[SYMNMLEN + 1];
774 const char *symname;
252b5132 775
1276aefa 776 bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &isym);
252b5132 777
1276aefa
NC
778 if (sizeof (internal_s->s_name) > SYMNMLEN)
779 {
780 /* This case implies that the matching
781 symbol name will be in the string table. */
782 abort ();
783 }
784
785 if (isym.n_scnum == section->target_index)
786 {
787 /* According to the MSVC documentation, the first
788 TWO entries with the section # are both of
789 interest to us. The first one is the "section
790 symbol" (section name). The second is the comdat
791 symbol name. Here, we've found the first
792 qualifying entry; we distinguish it from the
793 second with a state flag.
794
795 In the case of gas-generated (at least until that
796 is fixed) .o files, it isn't necessarily the
797 second one. It may be some other later symbol.
798
799 Since gas also doesn't follow MS conventions and
800 emits the section similar to .text$<name>, where
801 <something> is the name we're looking for, we
802 distinguish the two as follows:
803
804 If the section name is simply a section name (no
805 $) we presume it's MS-generated, and look at
806 precisely the second symbol for the comdat name.
807 If the section name has a $, we assume it's
808 gas-generated, and look for <something> (whatever
809 follows the $) as the comdat symbol. */
810
ed781d5d 811 /* All 3 branches use this. */
1276aefa
NC
812 symname = _bfd_coff_internal_syment_name (abfd, &isym, buf);
813
814 if (symname == NULL)
815 abort ();
816
817 switch (seen_state)
252b5132 818 {
1276aefa
NC
819 case 0:
820 {
821 /* The first time we've seen the symbol. */
822 union internal_auxent aux;
823
824 seen_state = 1;
825
826 /* If it isn't the stuff we're expecting, die;
827 The MS documentation is vague, but it
828 appears that the second entry serves BOTH
829 as the comdat symbol and the defining
830 symbol record (either C_STAT or C_EXT,
831 possibly with an aux entry with debug
832 information if it's a function.) It
833 appears the only way to find the second one
834 is to count. (On Intel, they appear to be
835 adjacent, but on Alpha, they have been
836 found separated.)
837
838 Here, we think we've found the first one,
839 but there's some checking we can do to be
840 sure. */
841
842 if (! (isym.n_sclass == C_STAT
843 && isym.n_type == T_NULL
844 && isym.n_value == 0))
845 abort ();
252b5132 846
1276aefa
NC
847 /* FIXME LATER: MSVC generates section names
848 like .text for comdats. Gas generates
849 names like .text$foo__Fv (in the case of a
850 function). See comment above for more. */
252b5132 851
1276aefa 852 if (strcmp (name, symname) != 0)
252b5132 853 abort ();
252b5132 854
1276aefa
NC
855 /* This is the section symbol. */
856 bfd_coff_swap_aux_in (abfd, (PTR) (esym + bfd_coff_symesz (abfd)),
857 isym.n_type, isym.n_sclass,
858 0, isym.n_numaux, (PTR) &aux);
859
860 target_name = strchr (name, '$');
861 if (target_name != NULL)
862 {
863 /* Gas mode. */
864 seen_state = 2;
865 /* Skip the `$'. */
866 target_name += 1;
867 }
868
869 /* FIXME: Microsoft uses NODUPLICATES and
870 ASSOCIATIVE, but gnu uses ANY and
871 SAME_SIZE. Unfortunately, gnu doesn't do
872 the comdat symbols right. So, until we can
873 fix it to do the right thing, we are
874 temporarily disabling comdats for the MS
875 types (they're used in DLLs and C++, but we
876 don't support *their* C++ libraries anyway
877 - DJ. */
878
879 /* Cygwin does not follow the MS style, and
880 uses ANY and SAME_SIZE where NODUPLICATES
881 and ASSOCIATIVE should be used. For
882 Interix, we just do the right thing up
883 front. */
884
885 switch (aux.x_scn.x_comdat)
886 {
887 case IMAGE_COMDAT_SELECT_NODUPLICATES:
e60b52c6 888#ifdef STRICT_PE_FORMAT
1276aefa 889 sec_flags |= SEC_LINK_DUPLICATES_ONE_ONLY;
ec0ef80e 890#else
1276aefa 891 sec_flags &= ~SEC_LINK_ONCE;
ec0ef80e 892#endif
1276aefa 893 break;
252b5132 894
1276aefa
NC
895 case IMAGE_COMDAT_SELECT_ANY:
896 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
897 break;
252b5132 898
1276aefa
NC
899 case IMAGE_COMDAT_SELECT_SAME_SIZE:
900 sec_flags |= SEC_LINK_DUPLICATES_SAME_SIZE;
901 break;
252b5132 902
1276aefa
NC
903 case IMAGE_COMDAT_SELECT_EXACT_MATCH:
904 /* Not yet fully implemented ??? */
905 sec_flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS;
906 break;
252b5132 907
1276aefa
NC
908 /* debug$S gets this case; other
909 implications ??? */
e5db213d 910
1276aefa
NC
911 /* There may be no symbol... we'll search
912 the whole table... Is this the right
913 place to play this game? Or should we do
914 it when reading it in. */
915 case IMAGE_COMDAT_SELECT_ASSOCIATIVE:
0717ebb7 916#ifdef STRICT_PE_FORMAT
1276aefa
NC
917 /* FIXME: This is not currently implemented. */
918 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
ec0ef80e 919#else
1276aefa 920 sec_flags &= ~SEC_LINK_ONCE;
ec0ef80e 921#endif
1276aefa 922 break;
e5db213d 923
1276aefa
NC
924 default: /* 0 means "no symbol" */
925 /* debug$F gets this case; other
926 implications ??? */
927 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
928 break;
929 }
930 }
931 break;
41733515 932
1276aefa
NC
933 case 2:
934 /* Gas mode: the first matching on partial name. */
252b5132 935
e5db213d
ILT
936#ifndef TARGET_UNDERSCORE
937#define TARGET_UNDERSCORE 0
938#endif
ed781d5d 939 /* Is this the name we're looking for ? */
1276aefa
NC
940 if (strcmp (target_name,
941 symname + (TARGET_UNDERSCORE ? 1 : 0)) != 0)
942 {
943 /* Not the name we're looking for */
944 esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd);
945 continue;
252b5132 946 }
1276aefa
NC
947 /* Fall through. */
948 case 1:
949 /* MSVC mode: the lexically second symbol (or
950 drop through from the above). */
951 {
952 char *newname;
dc810e39 953 bfd_size_type amt;
1276aefa 954
08da05b0 955 /* This must the second symbol with the
1276aefa
NC
956 section #. It is the actual symbol name.
957 Intel puts the two adjacent, but Alpha (at
958 least) spreads them out. */
959
dc810e39
AM
960 amt = sizeof (struct bfd_comdat_info);
961 section->comdat = bfd_alloc (abfd, amt);
1276aefa
NC
962 if (section->comdat == NULL)
963 abort ();
964
965 section->comdat->symbol =
966 (esym - esymstart) / bfd_coff_symesz (abfd);
967
dc810e39
AM
968 amt = strlen (symname) + 1;
969 newname = bfd_alloc (abfd, amt);
1276aefa
NC
970 if (newname == NULL)
971 abort ();
972
973 strcpy (newname, symname);
974 section->comdat->name = newname;
975 }
252b5132 976
1276aefa 977 goto breakloop;
252b5132
RH
978 }
979 }
1276aefa
NC
980
981 esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd);
982 }
983
984 breakloop:
985 return sec_flags;
986}
987
988
989/* The PE version; see above for the general comments.
990
991 Since to set the SEC_LINK_ONCE and associated flags, we have to
992 look at the symbol table anyway, we return the symbol table index
993 of the symbol being used as the COMDAT symbol. This is admittedly
994 ugly, but there's really nowhere else that we have access to the
995 required information. FIXME: Is the COMDAT symbol index used for
996 any purpose other than objdump? */
997
b34976b6 998static bfd_boolean
7c8ca0e4 999styp_to_sec_flags (abfd, hdr, name, section, flags_ptr)
1276aefa
NC
1000 bfd *abfd;
1001 PTR hdr;
1002 const char *name;
1003 asection *section;
7c8ca0e4 1004 flagword *flags_ptr;
1276aefa
NC
1005{
1006 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
1007 long styp_flags = internal_s->s_flags;
1008 flagword sec_flags;
b34976b6 1009 bfd_boolean result = TRUE;
1276aefa
NC
1010
1011 /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */
1012 sec_flags = SEC_READONLY;
1013
1014 /* Process each flag bit in styp_flags in turn. */
1015 while (styp_flags)
1016 {
1017 long flag = styp_flags & - styp_flags;
1018 char * unhandled = NULL;
dc810e39 1019
1276aefa
NC
1020 styp_flags &= ~ flag;
1021
1022 /* We infer from the distinct read/write/execute bits the settings
1023 of some of the bfd flags; the actual values, should we need them,
1024 are also in pei_section_data (abfd, section)->pe_flags. */
1025
1026 switch (flag)
1027 {
1028 case STYP_DSECT:
1029 unhandled = "STYP_DSECT";
1030 break;
1031 case STYP_GROUP:
1032 unhandled = "STYP_GROUP";
1033 break;
1034 case STYP_COPY:
1035 unhandled = "STYP_COPY";
1036 break;
1037 case STYP_OVER:
1038 unhandled = "STYP_OVER";
1039 break;
1040#ifdef SEC_NEVER_LOAD
1041 case STYP_NOLOAD:
1042 sec_flags |= SEC_NEVER_LOAD;
1043 break;
dc810e39 1044#endif
1276aefa
NC
1045 case IMAGE_SCN_MEM_READ:
1046 /* Ignored, assume it always to be true. */
1047 break;
1048 case IMAGE_SCN_TYPE_NO_PAD:
1049 /* Skip. */
1050 break;
1051 case IMAGE_SCN_LNK_OTHER:
1052 unhandled = "IMAGE_SCN_LNK_OTHER";
1053 break;
1054 case IMAGE_SCN_MEM_NOT_CACHED:
1055 unhandled = "IMAGE_SCN_MEM_NOT_CACHED";
1056 break;
1057 case IMAGE_SCN_MEM_NOT_PAGED:
1058 unhandled = "IMAGE_SCN_MEM_NOT_PAGED";
1059 break;
1060 case IMAGE_SCN_MEM_EXECUTE:
1061 sec_flags |= SEC_CODE;
1062 break;
1063 case IMAGE_SCN_MEM_WRITE:
1064 sec_flags &= ~ SEC_READONLY;
1065 break;
1066 case IMAGE_SCN_MEM_DISCARDABLE:
1067 sec_flags |= SEC_DEBUGGING;
1068 break;
1069 case IMAGE_SCN_MEM_SHARED:
1070 sec_flags |= SEC_SHARED;
1071 break;
1072 case IMAGE_SCN_LNK_REMOVE:
1073 sec_flags |= SEC_EXCLUDE;
1074 break;
1075 case IMAGE_SCN_CNT_CODE:
1076 sec_flags |= SEC_CODE | SEC_ALLOC | SEC_LOAD;
1077 break;
1078 case IMAGE_SCN_CNT_INITIALIZED_DATA:
1079 sec_flags |= SEC_DATA | SEC_ALLOC | SEC_LOAD;
1080 break;
1081 case IMAGE_SCN_CNT_UNINITIALIZED_DATA:
1082 sec_flags |= SEC_ALLOC;
1083 break;
1084 case IMAGE_SCN_LNK_INFO:
1085 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
1086 defined. coff_compute_section_file_positions uses
1087 COFF_PAGE_SIZE to ensure that the low order bits of the
1088 section VMA and the file offset match. If we don't know
1089 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
1090 and demand page loading of the file will fail. */
1091#ifdef COFF_PAGE_SIZE
1092 sec_flags |= SEC_DEBUGGING;
1093#endif
1094 break;
1095 case IMAGE_SCN_LNK_COMDAT:
1096 /* COMDAT gets very special treatment. */
1097 sec_flags = handle_COMDAT (abfd, sec_flags, hdr, name, section);
1098 break;
1099 default:
1100 /* Silently ignore for now. */
dc810e39 1101 break;
1276aefa
NC
1102 }
1103
7c8ca0e4 1104 /* If the section flag was not handled, report it here. */
1276aefa 1105 if (unhandled != NULL)
7c8ca0e4
NC
1106 {
1107 (*_bfd_error_handler)
1108 (_("%s (%s): Section flag %s (0x%x) ignored"),
8f615d07 1109 bfd_archive_filename (abfd), name, unhandled, flag);
b34976b6 1110 result = FALSE;
7c8ca0e4 1111 }
252b5132 1112 }
252b5132 1113
242eabea
ILT
1114#if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
1115 /* As a GNU extension, if the name begins with .gnu.linkonce, we
1116 only link a single copy of the section. This is used to support
1117 g++. g++ will emit each template expansion in its own section.
1118 The symbols will be defined as weak, so that multiple definitions
1119 are permitted. The GNU linker extension is to actually discard
1120 all but one of the sections. */
1121 if (strncmp (name, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0)
1122 sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
1123#endif
1124
7c8ca0e4
NC
1125 if (flags_ptr)
1126 * flags_ptr = sec_flags;
dc810e39 1127
7c8ca0e4 1128 return result;
252b5132
RH
1129}
1130
41733515
ILT
1131#endif /* COFF_WITH_PE */
1132
252b5132
RH
1133#define get_index(symbol) ((symbol)->udata.i)
1134
1135/*
1136INTERNAL_DEFINITION
1137 bfd_coff_backend_data
1138
1139CODE_FRAGMENT
1140
5d54c628
ILT
1141.{* COFF symbol classifications. *}
1142.
1143.enum coff_symbol_classification
1144.{
1145. {* Global symbol. *}
1146. COFF_SYMBOL_GLOBAL,
1147. {* Common symbol. *}
1148. COFF_SYMBOL_COMMON,
1149. {* Undefined symbol. *}
1150. COFF_SYMBOL_UNDEFINED,
1151. {* Local symbol. *}
1152. COFF_SYMBOL_LOCAL,
1153. {* PE section symbol. *}
1154. COFF_SYMBOL_PE_SECTION
1155.};
1156.
252b5132
RH
1157Special entry points for gdb to swap in coff symbol table parts:
1158.typedef struct
1159.{
dc810e39
AM
1160. void (*_bfd_coff_swap_aux_in)
1161. PARAMS ((bfd *, PTR, int, int, int, int, PTR));
252b5132 1162.
dc810e39
AM
1163. void (*_bfd_coff_swap_sym_in)
1164. PARAMS ((bfd *, PTR, PTR));
252b5132 1165.
dc810e39
AM
1166. void (*_bfd_coff_swap_lineno_in)
1167. PARAMS ((bfd *, PTR, PTR));
252b5132 1168.
dc810e39
AM
1169. unsigned int (*_bfd_coff_swap_aux_out)
1170. PARAMS ((bfd *, PTR, int, int, int, int, PTR));
252b5132 1171.
dc810e39
AM
1172. unsigned int (*_bfd_coff_swap_sym_out)
1173. PARAMS ((bfd *, PTR, PTR));
252b5132 1174.
dc810e39
AM
1175. unsigned int (*_bfd_coff_swap_lineno_out)
1176. PARAMS ((bfd *, PTR, PTR));
252b5132 1177.
dc810e39
AM
1178. unsigned int (*_bfd_coff_swap_reloc_out)
1179. PARAMS ((bfd *, PTR, PTR));
252b5132 1180.
dc810e39
AM
1181. unsigned int (*_bfd_coff_swap_filehdr_out)
1182. PARAMS ((bfd *, PTR, PTR));
252b5132 1183.
dc810e39
AM
1184. unsigned int (*_bfd_coff_swap_aouthdr_out)
1185. PARAMS ((bfd *, PTR, PTR));
252b5132 1186.
dc810e39
AM
1187. unsigned int (*_bfd_coff_swap_scnhdr_out)
1188. PARAMS ((bfd *, PTR, PTR));
252b5132 1189.
dc810e39
AM
1190. unsigned int _bfd_filhsz;
1191. unsigned int _bfd_aoutsz;
1192. unsigned int _bfd_scnhsz;
1193. unsigned int _bfd_symesz;
1194. unsigned int _bfd_auxesz;
1195. unsigned int _bfd_relsz;
1196. unsigned int _bfd_linesz;
1197. unsigned int _bfd_filnmlen;
b34976b6
AM
1198. bfd_boolean _bfd_coff_long_filenames;
1199. bfd_boolean _bfd_coff_long_section_names;
dc810e39 1200. unsigned int _bfd_coff_default_section_alignment_power;
b34976b6 1201. bfd_boolean _bfd_coff_force_symnames_in_strings;
dc810e39
AM
1202. unsigned int _bfd_coff_debug_string_prefix_length;
1203.
1204. void (*_bfd_coff_swap_filehdr_in)
1205. PARAMS ((bfd *, PTR, PTR));
1206.
1207. void (*_bfd_coff_swap_aouthdr_in)
1208. PARAMS ((bfd *, PTR, PTR));
1209.
1210. void (*_bfd_coff_swap_scnhdr_in)
1211. PARAMS ((bfd *, PTR, PTR));
1212.
1213. void (*_bfd_coff_swap_reloc_in)
1214. PARAMS ((bfd *abfd, PTR, PTR));
1215.
b34976b6 1216. bfd_boolean (*_bfd_coff_bad_format_hook)
dc810e39
AM
1217. PARAMS ((bfd *, PTR));
1218.
b34976b6 1219. bfd_boolean (*_bfd_coff_set_arch_mach_hook)
dc810e39
AM
1220. PARAMS ((bfd *, PTR));
1221.
1222. PTR (*_bfd_coff_mkobject_hook)
1223. PARAMS ((bfd *, PTR, PTR));
1224.
b34976b6 1225. bfd_boolean (*_bfd_styp_to_sec_flags_hook)
dc810e39
AM
1226. PARAMS ((bfd *, PTR, const char *, asection *, flagword *));
1227.
1228. void (*_bfd_set_alignment_hook)
1229. PARAMS ((bfd *, asection *, PTR));
1230.
b34976b6 1231. bfd_boolean (*_bfd_coff_slurp_symbol_table)
dc810e39
AM
1232. PARAMS ((bfd *));
1233.
b34976b6 1234. bfd_boolean (*_bfd_coff_symname_in_debug)
dc810e39
AM
1235. PARAMS ((bfd *, struct internal_syment *));
1236.
b34976b6 1237. bfd_boolean (*_bfd_coff_pointerize_aux_hook)
dc810e39
AM
1238. PARAMS ((bfd *, combined_entry_type *, combined_entry_type *,
1239. unsigned int, combined_entry_type *));
1240.
b34976b6 1241. bfd_boolean (*_bfd_coff_print_aux)
dc810e39
AM
1242. PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *,
1243. combined_entry_type *, unsigned int));
1244.
1245. void (*_bfd_coff_reloc16_extra_cases)
1246. PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
1247. bfd_byte *, unsigned int *, unsigned int *));
1248.
1249. int (*_bfd_coff_reloc16_estimate)
1250. PARAMS ((bfd *, asection *, arelent *, unsigned int,
1251. struct bfd_link_info *));
1252.
1253. enum coff_symbol_classification (*_bfd_coff_classify_symbol)
1254. PARAMS ((bfd *, struct internal_syment *));
1255.
b34976b6 1256. bfd_boolean (*_bfd_coff_compute_section_file_positions)
dc810e39 1257. PARAMS ((bfd *));
252b5132 1258.
b34976b6 1259. bfd_boolean (*_bfd_coff_start_final_link)
dc810e39
AM
1260. PARAMS ((bfd *, struct bfd_link_info *));
1261.
b34976b6 1262. bfd_boolean (*_bfd_coff_relocate_section)
dc810e39
AM
1263. PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
1264. struct internal_reloc *, struct internal_syment *, asection **));
1265.
1266. reloc_howto_type *(*_bfd_coff_rtype_to_howto)
1267. PARAMS ((bfd *, asection *, struct internal_reloc *,
1268. struct coff_link_hash_entry *, struct internal_syment *,
1269. bfd_vma *));
1270.
b34976b6 1271. bfd_boolean (*_bfd_coff_adjust_symndx)
dc810e39 1272. PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *,
b34976b6 1273. struct internal_reloc *, bfd_boolean *));
dc810e39 1274.
b34976b6 1275. bfd_boolean (*_bfd_coff_link_add_one_symbol)
dc810e39 1276. PARAMS ((struct bfd_link_info *, bfd *, const char *, flagword,
b34976b6 1277. asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
dc810e39
AM
1278. struct bfd_link_hash_entry **));
1279.
b34976b6 1280. bfd_boolean (*_bfd_coff_link_output_has_begun)
dc810e39
AM
1281. PARAMS ((bfd *, struct coff_final_link_info *));
1282.
b34976b6 1283. bfd_boolean (*_bfd_coff_final_link_postscript)
dc810e39 1284. PARAMS ((bfd *, struct coff_final_link_info *));
252b5132
RH
1285.
1286.} bfd_coff_backend_data;
1287.
dc810e39
AM
1288.#define coff_backend_info(abfd) \
1289. ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
252b5132
RH
1290.
1291.#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
dc810e39 1292. ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
252b5132
RH
1293.
1294.#define bfd_coff_swap_sym_in(a,e,i) \
dc810e39 1295. ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
252b5132
RH
1296.
1297.#define bfd_coff_swap_lineno_in(a,e,i) \
dc810e39 1298. ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
252b5132
RH
1299.
1300.#define bfd_coff_swap_reloc_out(abfd, i, o) \
dc810e39 1301. ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
252b5132
RH
1302.
1303.#define bfd_coff_swap_lineno_out(abfd, i, o) \
dc810e39 1304. ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
252b5132
RH
1305.
1306.#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
dc810e39 1307. ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
252b5132
RH
1308.
1309.#define bfd_coff_swap_sym_out(abfd, i,o) \
dc810e39 1310. ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
252b5132
RH
1311.
1312.#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
dc810e39 1313. ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
252b5132
RH
1314.
1315.#define bfd_coff_swap_filehdr_out(abfd, i,o) \
dc810e39 1316. ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
252b5132
RH
1317.
1318.#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
dc810e39 1319. ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
252b5132
RH
1320.
1321.#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1322.#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1323.#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1324.#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1325.#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1326.#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1327.#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
692b7d62 1328.#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
dc810e39
AM
1329.#define bfd_coff_long_filenames(abfd) \
1330. (coff_backend_info (abfd)->_bfd_coff_long_filenames)
252b5132 1331.#define bfd_coff_long_section_names(abfd) \
dc810e39 1332. (coff_backend_info (abfd)->_bfd_coff_long_section_names)
252b5132 1333.#define bfd_coff_default_section_alignment_power(abfd) \
dc810e39 1334. (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
252b5132 1335.#define bfd_coff_swap_filehdr_in(abfd, i,o) \
dc810e39 1336. ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
252b5132
RH
1337.
1338.#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
dc810e39 1339. ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
252b5132
RH
1340.
1341.#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
dc810e39 1342. ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
252b5132
RH
1343.
1344.#define bfd_coff_swap_reloc_in(abfd, i, o) \
dc810e39 1345. ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
252b5132
RH
1346.
1347.#define bfd_coff_bad_format_hook(abfd, filehdr) \
dc810e39 1348. ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
252b5132
RH
1349.
1350.#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
dc810e39 1351. ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
252b5132 1352.#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
ed781d5d
NC
1353. ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\
1354. (abfd, filehdr, aouthdr))
252b5132 1355.
7c8ca0e4 1356.#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
dc810e39
AM
1357. ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1358. (abfd, scnhdr, name, section, flags_ptr))
252b5132
RH
1359.
1360.#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
dc810e39 1361. ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
252b5132
RH
1362.
1363.#define bfd_coff_slurp_symbol_table(abfd)\
dc810e39 1364. ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
252b5132
RH
1365.
1366.#define bfd_coff_symname_in_debug(abfd, sym)\
dc810e39 1367. ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
252b5132 1368.
2243c419 1369.#define bfd_coff_force_symnames_in_strings(abfd)\
dc810e39 1370. (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
2243c419
CP
1371.
1372.#define bfd_coff_debug_string_prefix_length(abfd)\
dc810e39 1373. (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
2243c419 1374.
252b5132 1375.#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
dc810e39
AM
1376. ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1377. (abfd, file, base, symbol, aux, indaux))
252b5132 1378.
ed781d5d
NC
1379.#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\
1380. reloc, data, src_ptr, dst_ptr)\
dc810e39
AM
1381. ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1382. (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
252b5132
RH
1383.
1384.#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
dc810e39
AM
1385. ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1386. (abfd, section, reloc, shrink, link_info))
252b5132 1387.
5d54c628 1388.#define bfd_coff_classify_symbol(abfd, sym)\
dc810e39
AM
1389. ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1390. (abfd, sym))
252b5132
RH
1391.
1392.#define bfd_coff_compute_section_file_positions(abfd)\
dc810e39
AM
1393. ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1394. (abfd))
252b5132
RH
1395.
1396.#define bfd_coff_start_final_link(obfd, info)\
dc810e39
AM
1397. ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1398. (obfd, info))
252b5132 1399.#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
dc810e39
AM
1400. ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1401. (obfd, info, ibfd, o, con, rel, isyms, secs))
252b5132 1402.#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
dc810e39
AM
1403. ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1404. (abfd, sec, rel, h, sym, addendp))
252b5132 1405.#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
dc810e39
AM
1406. ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1407. (obfd, info, ibfd, sec, rel, adjustedp))
ed781d5d
NC
1408.#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\
1409. value, string, cp, coll, hashp)\
dc810e39
AM
1410. ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1411. (info, abfd, name, flags, section, value, string, cp, coll, hashp))
252b5132
RH
1412.
1413.#define bfd_coff_link_output_has_begun(a,p) \
dc810e39 1414. ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a,p))
252b5132 1415.#define bfd_coff_final_link_postscript(a,p) \
dc810e39 1416. ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a,p))
252b5132
RH
1417.
1418*/
1419
1420/* See whether the magic number matches. */
1421
b34976b6 1422static bfd_boolean
252b5132 1423coff_bad_format_hook (abfd, filehdr)
5f771d47 1424 bfd * abfd ATTRIBUTE_UNUSED;
252b5132
RH
1425 PTR filehdr;
1426{
1427 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1428
1429 if (BADMAG (*internal_f))
b34976b6 1430 return FALSE;
252b5132 1431
ed781d5d 1432 /* If the optional header is NULL or not the correct size then
252b5132
RH
1433 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1434 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1435 optional header is of a different size.
1436
1437 But the mips keeps extra stuff in it's opthdr, so dont check
ed781d5d 1438 when doing that. */
252b5132
RH
1439
1440#if defined(M88) || defined(I960)
6b3b007b 1441 if (internal_f->f_opthdr != 0 && bfd_coff_aoutsz (abfd) != internal_f->f_opthdr)
b34976b6 1442 return FALSE;
252b5132
RH
1443#endif
1444
b34976b6 1445 return TRUE;
252b5132
RH
1446}
1447
5a5b9651
SS
1448#ifdef TICOFF
1449static bfd_boolean
1450ticoff0_bad_format_hook (abfd, filehdr)
1451 bfd *abfd ATTRIBUTE_UNUSED;
1452 PTR filehdr;
1453{
1454 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1455
1456 if (COFF0_BADMAG (*internal_f))
1457 return FALSE;
1458
1459 return TRUE;
1460}
1461#endif
1462
1463#ifdef TICOFF
1464static bfd_boolean
1465ticoff1_bad_format_hook (abfd, filehdr)
1466 bfd *abfd ATTRIBUTE_UNUSED;
1467 PTR filehdr;
1468{
1469 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1470
1471 if (COFF1_BADMAG (*internal_f))
1472 return FALSE;
1473
1474 return TRUE;
1475}
1476#endif
1477
5dccc1dd
ILT
1478/* Check whether this section uses an alignment other than the
1479 default. */
1480
1481static void
1482coff_set_custom_section_alignment (abfd, section, alignment_table, table_size)
1483 bfd *abfd ATTRIBUTE_UNUSED;
1484 asection *section;
1485 const struct coff_section_alignment_entry *alignment_table;
1486 const unsigned int table_size;
1487{
1488 const unsigned int default_alignment = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
1489 unsigned int i;
1490
1491 for (i = 0; i < table_size; ++i)
1492 {
1493 const char *secname = bfd_get_section_name (abfd, section);
ed781d5d 1494
5dccc1dd
ILT
1495 if (alignment_table[i].comparison_length == (unsigned int) -1
1496 ? strcmp (alignment_table[i].name, secname) == 0
1497 : strncmp (alignment_table[i].name, secname,
1498 alignment_table[i].comparison_length) == 0)
1499 break;
1500 }
1501 if (i >= table_size)
1502 return;
1503
1504 if (alignment_table[i].default_alignment_min != COFF_ALIGNMENT_FIELD_EMPTY
1505 && default_alignment < alignment_table[i].default_alignment_min)
1506 return;
1507
1508 if (alignment_table[i].default_alignment_max != COFF_ALIGNMENT_FIELD_EMPTY
1e738b87
NC
1509#if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0
1510 && default_alignment > alignment_table[i].default_alignment_max
1511#endif
1512 )
5dccc1dd
ILT
1513 return;
1514
1515 section->alignment_power = alignment_table[i].alignment_power;
1516}
1517
1518/* Custom section alignment records. */
1519
1520static const struct coff_section_alignment_entry
1521coff_section_alignment_table[] =
1522{
1523#ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1524 COFF_SECTION_ALIGNMENT_ENTRIES,
1525#endif
1526 /* There must not be any gaps between .stabstr sections. */
1527 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1528 1, COFF_ALIGNMENT_FIELD_EMPTY, 0 },
1529 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1530 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1531 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 },
1532 /* Similarly for the .ctors and .dtors sections. */
1533 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1534 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 },
1535 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1536 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 }
1537};
1538
1539static const unsigned int coff_section_alignment_table_size =
1540 sizeof coff_section_alignment_table / sizeof coff_section_alignment_table[0];
1541
1542/* Initialize a section structure with information peculiar to this
1543 particular implementation of COFF. */
252b5132 1544
b34976b6 1545static bfd_boolean
252b5132 1546coff_new_section_hook (abfd, section)
60bcf0fa
NC
1547 bfd * abfd;
1548 asection * section;
252b5132
RH
1549{
1550 combined_entry_type *native;
dc810e39 1551 bfd_size_type amt;
252b5132
RH
1552
1553 section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
1554
1555#ifdef RS6000COFF_C
eb1e0e80 1556 if (bfd_xcoff_text_align_power (abfd) != 0
252b5132 1557 && strcmp (bfd_get_section_name (abfd, section), ".text") == 0)
eb1e0e80
NC
1558 section->alignment_power = bfd_xcoff_text_align_power (abfd);
1559 if (bfd_xcoff_data_align_power (abfd) != 0
252b5132 1560 && strcmp (bfd_get_section_name (abfd, section), ".data") == 0)
eb1e0e80 1561 section->alignment_power = bfd_xcoff_data_align_power (abfd);
252b5132
RH
1562#endif
1563
1564 /* Allocate aux records for section symbols, to store size and
1565 related info.
1566
1567 @@ The 10 is a guess at a plausible maximum number of aux entries
1568 (but shouldn't be a constant). */
dc810e39
AM
1569 amt = sizeof (combined_entry_type) * 10;
1570 native = (combined_entry_type *) bfd_zalloc (abfd, amt);
252b5132 1571 if (native == NULL)
b34976b6 1572 return FALSE;
252b5132
RH
1573
1574 /* We don't need to set up n_name, n_value, or n_scnum in the native
1575 symbol information, since they'll be overriden by the BFD symbol
1576 anyhow. However, we do need to set the type and storage class,
1577 in case this symbol winds up getting written out. The value 0
1578 for n_numaux is already correct. */
1579
1580 native->u.syment.n_type = T_NULL;
1581 native->u.syment.n_sclass = C_STAT;
1582
1583 coffsymbol (section->symbol)->native = native;
1584
5dccc1dd
ILT
1585 coff_set_custom_section_alignment (abfd, section,
1586 coff_section_alignment_table,
1587 coff_section_alignment_table_size);
252b5132 1588
b34976b6 1589 return TRUE;
252b5132
RH
1590}
1591
1592#ifdef COFF_ALIGN_IN_SECTION_HEADER
1593
1594/* Set the alignment of a BFD section. */
1595
1596static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR));
1597
1598static void
1599coff_set_alignment_hook (abfd, section, scnhdr)
5f771d47 1600 bfd * abfd ATTRIBUTE_UNUSED;
252b5132
RH
1601 asection * section;
1602 PTR scnhdr;
1603{
1604 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1605 unsigned int i;
1606
1607#ifdef I960
ed781d5d 1608 /* Extract ALIGN from 2**ALIGN stored in section header. */
252b5132
RH
1609 for (i = 0; i < 32; i++)
1610 if ((1 << i) >= hdr->s_align)
1611 break;
1612#endif
1613#ifdef TIC80COFF
ed781d5d 1614 /* TI tools puts the alignment power in bits 8-11. */
252b5132 1615 i = (hdr->s_flags >> 8) & 0xF ;
81635ce4
TW
1616#endif
1617#ifdef COFF_DECODE_ALIGNMENT
1618 i = COFF_DECODE_ALIGNMENT(hdr->s_flags);
252b5132
RH
1619#endif
1620 section->alignment_power = i;
b9af77f5
TW
1621
1622#ifdef coff_set_section_load_page
1623 coff_set_section_load_page (section, hdr->s_page);
1624#endif
252b5132
RH
1625}
1626
1627#else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1628#ifdef COFF_WITH_PE
1629
ed781d5d 1630/* A couple of macros to help setting the alignment power field. */
252b5132
RH
1631#define ALIGN_SET(field,x,y) \
1632 if (((field) & IMAGE_SCN_ALIGN_64BYTES) == x )\
1633 {\
1634 section->alignment_power = y;\
1635 }
1636
1637#define ELIFALIGN_SET(field,x,y) \
1638 else if (( (field) & IMAGE_SCN_ALIGN_64BYTES) == x ) \
1639 {\
1640 section->alignment_power = y;\
1641 }
1642
1643static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR));
1644
1645static void
1646coff_set_alignment_hook (abfd, section, scnhdr)
5f771d47 1647 bfd * abfd ATTRIBUTE_UNUSED;
252b5132
RH
1648 asection * section;
1649 PTR scnhdr;
1650{
1651 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
dc810e39 1652 bfd_size_type amt;
252b5132
RH
1653
1654 ALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_64BYTES, 6)
1655 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_32BYTES, 5)
1656 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_16BYTES, 4)
1657 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_8BYTES, 3)
1658 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_4BYTES, 2)
1659 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_2BYTES, 1)
1660 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_1BYTES, 0)
1661
252b5132 1662 /* In a PE image file, the s_paddr field holds the virtual size of a
8d3ad4e1
ILT
1663 section, while the s_size field holds the raw size. We also keep
1664 the original section flag value, since not every bit can be
1665 mapped onto a generic BFD section bit. */
1666 if (coff_section_data (abfd, section) == NULL)
252b5132 1667 {
dc810e39
AM
1668 amt = sizeof (struct coff_section_tdata);
1669 section->used_by_bfd = (PTR) bfd_zalloc (abfd, amt);
8d3ad4e1 1670 if (section->used_by_bfd == NULL)
252b5132 1671 {
8d3ad4e1
ILT
1672 /* FIXME: Return error. */
1673 abort ();
252b5132 1674 }
8d3ad4e1
ILT
1675 }
1676 if (pei_section_data (abfd, section) == NULL)
1677 {
dc810e39
AM
1678 amt = sizeof (struct pei_section_tdata);
1679 coff_section_data (abfd, section)->tdata = (PTR) bfd_zalloc (abfd, amt);
8d3ad4e1 1680 if (coff_section_data (abfd, section)->tdata == NULL)
252b5132 1681 {
8d3ad4e1
ILT
1682 /* FIXME: Return error. */
1683 abort ();
252b5132 1684 }
252b5132 1685 }
8d3ad4e1
ILT
1686 pei_section_data (abfd, section)->virt_size = hdr->s_paddr;
1687 pei_section_data (abfd, section)->pe_flags = hdr->s_flags;
252b5132 1688
9d8cefa9 1689 section->lma = hdr->s_vaddr;
3e4554a2 1690
ed781d5d 1691 /* Check for extended relocs. */
3e4554a2
DD
1692 if (hdr->s_flags & IMAGE_SCN_LNK_NRELOC_OVFL)
1693 {
1694 struct external_reloc dst;
1695 struct internal_reloc n;
dc810e39
AM
1696 file_ptr oldpos = bfd_tell (abfd);
1697 bfd_seek (abfd, (file_ptr) hdr->s_relptr, 0);
1698 if (bfd_bread ((PTR) &dst, (bfd_size_type) bfd_coff_relsz (abfd), abfd)
3e4554a2
DD
1699 != bfd_coff_relsz (abfd))
1700 return;
e60b52c6 1701
3e4554a2
DD
1702 coff_swap_reloc_in (abfd, &dst, &n);
1703 bfd_seek (abfd, oldpos, 0);
dc810e39 1704 section->reloc_count = hdr->s_nreloc = n.r_vaddr;
3e4554a2 1705 }
252b5132
RH
1706}
1707#undef ALIGN_SET
1708#undef ELIFALIGN_SET
1709
1710#else /* ! COFF_WITH_PE */
1711#ifdef RS6000COFF_C
1712
1713/* We grossly abuse this function to handle XCOFF overflow headers.
1714 When we see one, we correct the reloc and line number counts in the
1715 real header, and remove the section we just created. */
1716
1717static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR));
1718
1719static void
1720coff_set_alignment_hook (abfd, section, scnhdr)
1721 bfd *abfd;
1722 asection *section;
1723 PTR scnhdr;
1724{
1725 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1726 asection *real_sec;
1727 asection **ps;
1728
1729 if ((hdr->s_flags & STYP_OVRFLO) == 0)
1730 return;
1731
dc810e39 1732 real_sec = coff_section_from_bfd_index (abfd, (int) hdr->s_nreloc);
252b5132
RH
1733 if (real_sec == NULL)
1734 return;
1735
1736 real_sec->reloc_count = hdr->s_paddr;
1737 real_sec->lineno_count = hdr->s_vaddr;
1738
1739 for (ps = &abfd->sections; *ps != NULL; ps = &(*ps)->next)
1740 {
1741 if (*ps == section)
1742 {
9e7b37b3 1743 bfd_section_list_remove (abfd, ps);
252b5132
RH
1744 --abfd->section_count;
1745 break;
1746 }
1747 }
1748}
1749
1750#else /* ! RS6000COFF_C */
1751
1752#define coff_set_alignment_hook \
1753 ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void)
1754
1755#endif /* ! RS6000COFF_C */
1756#endif /* ! COFF_WITH_PE */
1757#endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
1758
1759#ifndef coff_mkobject
1760
b34976b6 1761static bfd_boolean coff_mkobject PARAMS ((bfd *));
252b5132 1762
b34976b6 1763static bfd_boolean
252b5132
RH
1764coff_mkobject (abfd)
1765 bfd * abfd;
1766{
1767 coff_data_type *coff;
dc810e39 1768 bfd_size_type amt = sizeof (coff_data_type);
252b5132 1769
dc810e39 1770 abfd->tdata.coff_obj_data = (struct coff_tdata *) bfd_zalloc (abfd, amt);
252b5132 1771 if (abfd->tdata.coff_obj_data == 0)
b34976b6 1772 return FALSE;
252b5132
RH
1773 coff = coff_data (abfd);
1774 coff->symbols = (coff_symbol_type *) NULL;
1775 coff->conversion_table = (unsigned int *) NULL;
1776 coff->raw_syments = (struct coff_ptr_struct *) NULL;
1777 coff->relocbase = 0;
1778 coff->local_toc_sym_map = 0;
1779
1780/* make_abs_section(abfd);*/
1781
b34976b6 1782 return TRUE;
252b5132
RH
1783}
1784#endif
1785
1786/* Create the COFF backend specific information. */
ed781d5d 1787
252b5132
RH
1788#ifndef coff_mkobject_hook
1789static PTR
1790coff_mkobject_hook (abfd, filehdr, aouthdr)
1791 bfd * abfd;
1792 PTR filehdr;
5f771d47 1793 PTR aouthdr ATTRIBUTE_UNUSED;
252b5132
RH
1794{
1795 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1796 coff_data_type *coff;
1797
82e51918 1798 if (! coff_mkobject (abfd))
252b5132
RH
1799 return NULL;
1800
1801 coff = coff_data (abfd);
1802
1803 coff->sym_filepos = internal_f->f_symptr;
1804
1805 /* These members communicate important constants about the symbol
1806 table to GDB's symbol-reading code. These `constants'
1807 unfortunately vary among coff implementations... */
1808 coff->local_n_btmask = N_BTMASK;
1809 coff->local_n_btshft = N_BTSHFT;
1810 coff->local_n_tmask = N_TMASK;
1811 coff->local_n_tshift = N_TSHIFT;
6b3b007b
NC
1812 coff->local_symesz = bfd_coff_symesz (abfd);
1813 coff->local_auxesz = bfd_coff_auxesz (abfd);
1814 coff->local_linesz = bfd_coff_linesz (abfd);
252b5132 1815
1135238b
ILT
1816 coff->timestamp = internal_f->f_timdat;
1817
252b5132
RH
1818 obj_raw_syment_count (abfd) =
1819 obj_conv_table_size (abfd) =
1820 internal_f->f_nsyms;
1821
1822#ifdef RS6000COFF_C
1823 if ((internal_f->f_flags & F_SHROBJ) != 0)
1824 abfd->flags |= DYNAMIC;
6b3b007b 1825 if (aouthdr != NULL && internal_f->f_opthdr >= bfd_coff_aoutsz (abfd))
252b5132
RH
1826 {
1827 struct internal_aouthdr *internal_a =
1828 (struct internal_aouthdr *) aouthdr;
1829 struct xcoff_tdata *xcoff;
1830
1831 xcoff = xcoff_data (abfd);
a2fdf270
ND
1832# ifdef U803XTOCMAGIC
1833 xcoff->xcoff64 = internal_f->f_magic == U803XTOCMAGIC;
1834# else
1835 xcoff->xcoff64 = 0;
1836# endif
b34976b6 1837 xcoff->full_aouthdr = TRUE;
252b5132
RH
1838 xcoff->toc = internal_a->o_toc;
1839 xcoff->sntoc = internal_a->o_sntoc;
1840 xcoff->snentry = internal_a->o_snentry;
f3813499
TR
1841 bfd_xcoff_text_align_power (abfd) = internal_a->o_algntext;
1842 bfd_xcoff_data_align_power (abfd) = internal_a->o_algndata;
252b5132
RH
1843 xcoff->modtype = internal_a->o_modtype;
1844 xcoff->cputype = internal_a->o_cputype;
1845 xcoff->maxdata = internal_a->o_maxdata;
1846 xcoff->maxstack = internal_a->o_maxstack;
1847 }
1848#endif
1849
e60b52c6 1850#ifdef ARM
f13b834e 1851 /* Set the flags field from the COFF header read in. */
252b5132
RH
1852 if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags))
1853 coff->flags = 0;
1854#endif
e60b52c6 1855
4cfec37b
ILT
1856#ifdef COFF_WITH_PE
1857 /* FIXME: I'm not sure this is ever executed, since peicode.h
1858 defines coff_mkobject_hook. */
1859 if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0)
1860 abfd->flags |= HAS_DEBUG;
1861#endif
1862
252b5132
RH
1863 return (PTR) coff;
1864}
1865#endif
1866
1867/* Determine the machine architecture and type. FIXME: This is target
1868 dependent because the magic numbers are defined in the target
1869 dependent header files. But there is no particular need for this.
1870 If the magic numbers were moved to a separate file, this function
1871 would be target independent and would also be much more successful
1872 at linking together COFF files for different architectures. */
1873
b34976b6 1874static bfd_boolean
252b5132
RH
1875coff_set_arch_mach_hook (abfd, filehdr)
1876 bfd *abfd;
1877 PTR filehdr;
1878{
dc810e39 1879 unsigned long machine;
252b5132
RH
1880 enum bfd_architecture arch;
1881 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1882
250d94fd 1883 /* Zero selects the default machine for an arch. */
252b5132
RH
1884 machine = 0;
1885 switch (internal_f->f_magic)
1886 {
3b16e843
NC
1887#ifdef OR32_MAGIC_BIG
1888 case OR32_MAGIC_BIG:
1889 case OR32_MAGIC_LITTLE:
1890 arch = bfd_arch_or32;
3b16e843
NC
1891 break;
1892#endif
252b5132
RH
1893#ifdef PPCMAGIC
1894 case PPCMAGIC:
1895 arch = bfd_arch_powerpc;
e60b52c6 1896 break;
252b5132
RH
1897#endif
1898#ifdef I386MAGIC
1899 case I386MAGIC:
1900 case I386PTXMAGIC:
1901 case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler */
1902 case LYNXCOFFMAGIC: /* shadows the m68k Lynx number below, sigh */
1903 arch = bfd_arch_i386;
252b5132
RH
1904 break;
1905#endif
fac41780
JW
1906#ifdef IA64MAGIC
1907 case IA64MAGIC:
1908 arch = bfd_arch_ia64;
fac41780
JW
1909 break;
1910#endif
252b5132
RH
1911#ifdef A29K_MAGIC_BIG
1912 case A29K_MAGIC_BIG:
1913 case A29K_MAGIC_LITTLE:
1914 arch = bfd_arch_a29k;
252b5132
RH
1915 break;
1916#endif
1917#ifdef ARMMAGIC
1918 case ARMMAGIC:
17505c5c
NC
1919 case ARMPEMAGIC:
1920 case THUMBPEMAGIC:
252b5132 1921 arch = bfd_arch_arm;
5a6c6817
NC
1922 machine = bfd_arm_get_mach_from_notes (abfd, ARM_NOTE_SECTION);
1923 if (machine == bfd_mach_arm_unknown)
252b5132 1924 {
5a6c6817
NC
1925 switch (internal_f->f_flags & F_ARM_ARCHITECTURE_MASK)
1926 {
1927 case F_ARM_2: machine = bfd_mach_arm_2; break;
1928 case F_ARM_2a: machine = bfd_mach_arm_2a; break;
1929 case F_ARM_3: machine = bfd_mach_arm_3; break;
1930 default:
1931 case F_ARM_3M: machine = bfd_mach_arm_3M; break;
1932 case F_ARM_4: machine = bfd_mach_arm_4; break;
1933 case F_ARM_4T: machine = bfd_mach_arm_4T; break;
1934 /* The COFF header does not have enough bits available
1935 to cover all the different ARM architectures. So
1936 we interpret F_ARM_5, the highest flag value to mean
1937 "the highest ARM architecture known to BFD" which is
1938 currently the XScale. */
1939 case F_ARM_5: machine = bfd_mach_arm_XScale; break;
1940 }
252b5132
RH
1941 }
1942 break;
1943#endif
1944#ifdef MC68MAGIC
1945 case MC68MAGIC:
1946 case M68MAGIC:
1947#ifdef MC68KBCSMAGIC
1948 case MC68KBCSMAGIC:
1949#endif
1950#ifdef APOLLOM68KMAGIC
1951 case APOLLOM68KMAGIC:
1952#endif
1953#ifdef LYNXCOFFMAGIC
1954 case LYNXCOFFMAGIC:
1955#endif
1956 arch = bfd_arch_m68k;
1957 machine = bfd_mach_m68020;
1958 break;
1959#endif
1960#ifdef MC88MAGIC
1961 case MC88MAGIC:
1962 case MC88DMAGIC:
1963 case MC88OMAGIC:
1964 arch = bfd_arch_m88k;
1965 machine = 88100;
1966 break;
1967#endif
1968#ifdef Z8KMAGIC
1969 case Z8KMAGIC:
1970 arch = bfd_arch_z8k;
1971 switch (internal_f->f_flags & F_MACHMASK)
1972 {
1973 case F_Z8001:
1974 machine = bfd_mach_z8001;
1975 break;
1976 case F_Z8002:
1977 machine = bfd_mach_z8002;
1978 break;
1979 default:
b34976b6 1980 return FALSE;
252b5132
RH
1981 }
1982 break;
1983#endif
1984#ifdef I860
1985 case I860MAGIC:
1986 arch = bfd_arch_i860;
1987 break;
1988#endif
1989#ifdef I960
1990#ifdef I960ROMAGIC
1991 case I960ROMAGIC:
1992 case I960RWMAGIC:
1993 arch = bfd_arch_i960;
1994 switch (F_I960TYPE & internal_f->f_flags)
1995 {
1996 default:
1997 case F_I960CORE:
1998 machine = bfd_mach_i960_core;
1999 break;
2000 case F_I960KB:
2001 machine = bfd_mach_i960_kb_sb;
2002 break;
2003 case F_I960MC:
2004 machine = bfd_mach_i960_mc;
2005 break;
2006 case F_I960XA:
2007 machine = bfd_mach_i960_xa;
2008 break;
2009 case F_I960CA:
2010 machine = bfd_mach_i960_ca;
2011 break;
2012 case F_I960KA:
2013 machine = bfd_mach_i960_ka_sa;
2014 break;
2015 case F_I960JX:
2016 machine = bfd_mach_i960_jx;
2017 break;
2018 case F_I960HX:
2019 machine = bfd_mach_i960_hx;
2020 break;
2021 }
2022 break;
2023#endif
2024#endif
2025
2026#ifdef RS6000COFF_C
7f6d05e8 2027#ifdef XCOFF64
eb1e0e80 2028 case U64_TOCMAGIC:
c6664dfb 2029 case U803XTOCMAGIC:
7f6d05e8 2030#else
252b5132
RH
2031 case U802ROMAGIC:
2032 case U802WRMAGIC:
2033 case U802TOCMAGIC:
7f6d05e8 2034#endif
252b5132
RH
2035 {
2036 int cputype;
2037
2038 if (xcoff_data (abfd)->cputype != -1)
2039 cputype = xcoff_data (abfd)->cputype & 0xff;
2040 else
2041 {
2042 /* We did not get a value from the a.out header. If the
2043 file has not been stripped, we may be able to get the
2044 architecture information from the first symbol, if it
2045 is a .file symbol. */
2046 if (obj_raw_syment_count (abfd) == 0)
2047 cputype = 0;
2048 else
2049 {
5ea1af0d 2050 bfd_byte *buf;
252b5132 2051 struct internal_syment sym;
dc810e39 2052 bfd_size_type amt = bfd_coff_symesz (abfd);
252b5132 2053
dc810e39 2054 buf = (bfd_byte *) bfd_malloc (amt);
252b5132 2055 if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
dc810e39 2056 || bfd_bread (buf, amt, abfd) != amt)
5ea1af0d 2057 {
2fca4467 2058 free (buf);
b34976b6 2059 return FALSE;
5ea1af0d 2060 }
7f6d05e8 2061 bfd_coff_swap_sym_in (abfd, (PTR) buf, (PTR) &sym);
252b5132
RH
2062 if (sym.n_sclass == C_FILE)
2063 cputype = sym.n_type & 0xff;
2064 else
2065 cputype = 0;
2fca4467 2066 free (buf);
252b5132
RH
2067 }
2068 }
2069
2070 /* FIXME: We don't handle all cases here. */
2071 switch (cputype)
2072 {
2073 default:
2074 case 0:
beb1bf64
TR
2075 arch = bfd_xcoff_architecture (abfd);
2076 machine = bfd_xcoff_machine (abfd);
252b5132
RH
2077 break;
2078
2079 case 1:
2080 arch = bfd_arch_powerpc;
87f33987 2081 machine = bfd_mach_ppc_601;
252b5132
RH
2082 break;
2083 case 2: /* 64 bit PowerPC */
2084 arch = bfd_arch_powerpc;
87f33987 2085 machine = bfd_mach_ppc_620;
252b5132
RH
2086 break;
2087 case 3:
2088 arch = bfd_arch_powerpc;
87f33987 2089 machine = bfd_mach_ppc;
252b5132
RH
2090 break;
2091 case 4:
2092 arch = bfd_arch_rs6000;
87f33987 2093 machine = bfd_mach_rs6k;
252b5132
RH
2094 break;
2095 }
2096 }
2097 break;
2098#endif
2099
2100#ifdef WE32KMAGIC
2101 case WE32KMAGIC:
2102 arch = bfd_arch_we32k;
252b5132
RH
2103 break;
2104#endif
2105
2106#ifdef H8300MAGIC
2107 case H8300MAGIC:
2108 arch = bfd_arch_h8300;
2109 machine = bfd_mach_h8300;
8d9cd6b1 2110 /* !! FIXME this probably isn't the right place for this. */
252b5132
RH
2111 abfd->flags |= BFD_IS_RELAXABLE;
2112 break;
2113#endif
2114
2115#ifdef H8300HMAGIC
2116 case H8300HMAGIC:
2117 arch = bfd_arch_h8300;
2118 machine = bfd_mach_h8300h;
8d9cd6b1 2119 /* !! FIXME this probably isn't the right place for this. */
252b5132
RH
2120 abfd->flags |= BFD_IS_RELAXABLE;
2121 break;
2122#endif
2123
2124#ifdef H8300SMAGIC
2125 case H8300SMAGIC:
2126 arch = bfd_arch_h8300;
2127 machine = bfd_mach_h8300s;
8d9cd6b1
NC
2128 /* !! FIXME this probably isn't the right place for this. */
2129 abfd->flags |= BFD_IS_RELAXABLE;
2130 break;
2131#endif
2132
2133#ifdef H8300HNMAGIC
2134 case H8300HNMAGIC:
2135 arch = bfd_arch_h8300;
2136 machine = bfd_mach_h8300hn;
2137 /* !! FIXME this probably isn't the right place for this. */
2138 abfd->flags |= BFD_IS_RELAXABLE;
2139 break;
2140#endif
2141
2142#ifdef H8300SNMAGIC
2143 case H8300SNMAGIC:
2144 arch = bfd_arch_h8300;
2145 machine = bfd_mach_h8300sn;
2146 /* !! FIXME this probably isn't the right place for this. */
252b5132
RH
2147 abfd->flags |= BFD_IS_RELAXABLE;
2148 break;
2149#endif
2150
2151#ifdef SH_ARCH_MAGIC_BIG
2152 case SH_ARCH_MAGIC_BIG:
2153 case SH_ARCH_MAGIC_LITTLE:
17505c5c
NC
2154#ifdef COFF_WITH_PE
2155 case SH_ARCH_MAGIC_WINCE:
2156#endif
252b5132 2157 arch = bfd_arch_sh;
252b5132
RH
2158 break;
2159#endif
2160
17505c5c
NC
2161#ifdef MIPS_ARCH_MAGIC_WINCE
2162 case MIPS_ARCH_MAGIC_WINCE:
2163 arch = bfd_arch_mips;
17505c5c
NC
2164 break;
2165#endif
2166
252b5132
RH
2167#ifdef H8500MAGIC
2168 case H8500MAGIC:
2169 arch = bfd_arch_h8500;
252b5132
RH
2170 break;
2171#endif
2172
2173#ifdef SPARCMAGIC
2174 case SPARCMAGIC:
2175#ifdef LYNXCOFFMAGIC
2176 case LYNXCOFFMAGIC:
2177#endif
2178 arch = bfd_arch_sparc;
252b5132
RH
2179 break;
2180#endif
2181
2182#ifdef TIC30MAGIC
2183 case TIC30MAGIC:
2184 arch = bfd_arch_tic30;
2185 break;
2186#endif
2187
81635ce4
TW
2188#ifdef TICOFF0MAGIC
2189#ifdef TICOFF_TARGET_ARCH
ed781d5d 2190 /* This TI COFF section should be used by all new TI COFF v0 targets. */
81635ce4
TW
2191 case TICOFF0MAGIC:
2192 arch = TICOFF_TARGET_ARCH;
0da35f8b 2193 machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags);
81635ce4
TW
2194 break;
2195#endif
2196#endif
2197
2198#ifdef TICOFF1MAGIC
ed781d5d
NC
2199 /* This TI COFF section should be used by all new TI COFF v1/2 targets. */
2200 /* TI COFF1 and COFF2 use the target_id field to specify which arch. */
81635ce4
TW
2201 case TICOFF1MAGIC:
2202 case TICOFF2MAGIC:
2203 switch (internal_f->f_target_id)
2204 {
2205#ifdef TI_TARGET_ID
2206 case TI_TARGET_ID:
2207 arch = TICOFF_TARGET_ARCH;
0da35f8b 2208 machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags);
81635ce4
TW
2209 break;
2210#endif
2211 default:
4af1d5f6 2212 arch = bfd_arch_obscure;
81635ce4 2213 (*_bfd_error_handler)
e60b52c6 2214 (_("Unrecognized TI COFF target id '0x%x'"),
81635ce4
TW
2215 internal_f->f_target_id);
2216 break;
2217 }
2218 break;
2219#endif
2220
252b5132
RH
2221#ifdef TIC80_ARCH_MAGIC
2222 case TIC80_ARCH_MAGIC:
2223 arch = bfd_arch_tic80;
2224 break;
2225#endif
2226
2227#ifdef MCOREMAGIC
2228 case MCOREMAGIC:
2229 arch = bfd_arch_mcore;
2230 break;
2231#endif
c8e48751
AM
2232
2233#ifdef W65MAGIC
2234 case W65MAGIC:
2235 arch = bfd_arch_w65;
2236 break;
2237#endif
2238
ed781d5d 2239 default: /* Unreadable input file type. */
252b5132
RH
2240 arch = bfd_arch_obscure;
2241 break;
2242 }
2243
2244 bfd_default_set_arch_mach (abfd, arch, machine);
b34976b6 2245 return TRUE;
252b5132
RH
2246}
2247
2248#ifdef SYMNAME_IN_DEBUG
2249
b34976b6 2250static bfd_boolean symname_in_debug_hook
252b5132
RH
2251 PARAMS ((bfd *, struct internal_syment *));
2252
b34976b6 2253static bfd_boolean
252b5132 2254symname_in_debug_hook (abfd, sym)
5f771d47 2255 bfd * abfd ATTRIBUTE_UNUSED;
252b5132
RH
2256 struct internal_syment *sym;
2257{
82e51918 2258 return SYMNAME_IN_DEBUG (sym) != 0;
252b5132
RH
2259}
2260
2261#else
2262
2263#define symname_in_debug_hook \
b34976b6 2264 (bfd_boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false
252b5132
RH
2265
2266#endif
2267
2268#ifdef RS6000COFF_C
2269
7f6d05e8
CP
2270#ifdef XCOFF64
2271#define FORCE_SYMNAMES_IN_STRINGS
2272#endif
a022216b 2273
252b5132
RH
2274/* Handle the csect auxent of a C_EXT or C_HIDEXT symbol. */
2275
b34976b6 2276static bfd_boolean coff_pointerize_aux_hook
252b5132
RH
2277 PARAMS ((bfd *, combined_entry_type *, combined_entry_type *,
2278 unsigned int, combined_entry_type *));
2279
b34976b6 2280static bfd_boolean
252b5132 2281coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux)
5f771d47 2282 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH
2283 combined_entry_type *table_base;
2284 combined_entry_type *symbol;
2285 unsigned int indaux;
2286 combined_entry_type *aux;
2287{
2288 int class = symbol->u.syment.n_sclass;
2289
2290 if ((class == C_EXT || class == C_HIDEXT)
2291 && indaux + 1 == symbol->u.syment.n_numaux)
2292 {
2293 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD)
2294 {
2295 aux->u.auxent.x_csect.x_scnlen.p =
2296 table_base + aux->u.auxent.x_csect.x_scnlen.l;
2297 aux->fix_scnlen = 1;
2298 }
2299
b34976b6 2300 /* Return TRUE to indicate that the caller should not do any
252b5132 2301 further work on this auxent. */
b34976b6 2302 return TRUE;
252b5132
RH
2303 }
2304
b34976b6 2305 /* Return FALSE to indicate that this auxent should be handled by
252b5132 2306 the caller. */
b34976b6 2307 return FALSE;
252b5132
RH
2308}
2309
2310#else
2311#ifdef I960
2312
2313/* We don't want to pointerize bal entries. */
2314
b34976b6 2315static bfd_boolean coff_pointerize_aux_hook
252b5132
RH
2316 PARAMS ((bfd *, combined_entry_type *, combined_entry_type *,
2317 unsigned int, combined_entry_type *));
2318
b34976b6 2319static bfd_boolean
252b5132 2320coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux)
5f771d47
ILT
2321 bfd *abfd ATTRIBUTE_UNUSED;
2322 combined_entry_type *table_base ATTRIBUTE_UNUSED;
252b5132
RH
2323 combined_entry_type *symbol;
2324 unsigned int indaux;
5f771d47 2325 combined_entry_type *aux ATTRIBUTE_UNUSED;
252b5132 2326{
b34976b6 2327 /* Return TRUE if we don't want to pointerize this aux entry, which
252b5132
RH
2328 is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */
2329 return (indaux == 1
2330 && (symbol->u.syment.n_sclass == C_LEAFPROC
2331 || symbol->u.syment.n_sclass == C_LEAFSTAT
2332 || symbol->u.syment.n_sclass == C_LEAFEXT));
2333}
2334
2335#else /* ! I960 */
2336
2337#define coff_pointerize_aux_hook 0
2338
2339#endif /* ! I960 */
2340#endif /* ! RS6000COFF_C */
2341
b34976b6 2342/* Print an aux entry. This returns TRUE if it has printed it. */
252b5132 2343
b34976b6 2344static bfd_boolean coff_print_aux
252b5132
RH
2345 PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *,
2346 combined_entry_type *, unsigned int));
2347
b34976b6 2348static bfd_boolean
252b5132 2349coff_print_aux (abfd, file, table_base, symbol, aux, indaux)
5f771d47
ILT
2350 bfd *abfd ATTRIBUTE_UNUSED;
2351 FILE *file ATTRIBUTE_UNUSED;
2352 combined_entry_type *table_base ATTRIBUTE_UNUSED;
2353 combined_entry_type *symbol ATTRIBUTE_UNUSED;
2354 combined_entry_type *aux ATTRIBUTE_UNUSED;
2355 unsigned int indaux ATTRIBUTE_UNUSED;
252b5132
RH
2356{
2357#ifdef RS6000COFF_C
2358 if ((symbol->u.syment.n_sclass == C_EXT
2359 || symbol->u.syment.n_sclass == C_HIDEXT)
2360 && indaux + 1 == symbol->u.syment.n_numaux)
2361 {
2362 /* This is a csect entry. */
2363 fprintf (file, "AUX ");
2364 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) != XTY_LD)
2365 {
2366 BFD_ASSERT (! aux->fix_scnlen);
dc810e39 2367#ifdef XCOFF64
beb1bf64
TR
2368 fprintf (file, "val %5lld", aux->u.auxent.x_csect.x_scnlen.l);
2369#else
2370 fprintf (file, "val %5ld", (long) aux->u.auxent.x_csect.x_scnlen.l);
2371#endif
252b5132
RH
2372 }
2373 else
2374 {
2375 fprintf (file, "indx ");
2376 if (! aux->fix_scnlen)
beb1bf64
TR
2377#ifdef XCOFF64
2378 fprintf (file, "%4lld", aux->u.auxent.x_csect.x_scnlen.l);
2379#else
2380 fprintf (file, "%4ld", (long) aux->u.auxent.x_csect.x_scnlen.l);
2381#endif
252b5132
RH
2382 else
2383 fprintf (file, "%4ld",
2384 (long) (aux->u.auxent.x_csect.x_scnlen.p - table_base));
2385 }
2386 fprintf (file,
2387 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2388 aux->u.auxent.x_csect.x_parmhash,
2389 (unsigned int) aux->u.auxent.x_csect.x_snhash,
2390 SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp),
2391 SMTYP_ALIGN (aux->u.auxent.x_csect.x_smtyp),
2392 (unsigned int) aux->u.auxent.x_csect.x_smclas,
2393 aux->u.auxent.x_csect.x_stab,
2394 (unsigned int) aux->u.auxent.x_csect.x_snstab);
b34976b6 2395 return TRUE;
252b5132
RH
2396 }
2397#endif
2398
b34976b6
AM
2399 /* Return FALSE to indicate that no special action was taken. */
2400 return FALSE;
252b5132
RH
2401}
2402
2403/*
2404SUBSUBSECTION
2405 Writing relocations
2406
2407 To write relocations, the back end steps though the
2408 canonical relocation table and create an
2409 @code{internal_reloc}. The symbol index to use is removed from
2410 the @code{offset} field in the symbol table supplied. The
2411 address comes directly from the sum of the section base
2412 address and the relocation offset; the type is dug directly
2413 from the howto field. Then the @code{internal_reloc} is
2414 swapped into the shape of an @code{external_reloc} and written
2415 out to disk.
2416
2417*/
2418
2419#ifdef TARG_AUX
2420
2421static int compare_arelent_ptr PARAMS ((const PTR, const PTR));
2422
ed781d5d 2423/* AUX's ld wants relocations to be sorted. */
252b5132
RH
2424static int
2425compare_arelent_ptr (x, y)
2426 const PTR x;
2427 const PTR y;
2428{
2429 const arelent **a = (const arelent **) x;
2430 const arelent **b = (const arelent **) y;
2431 bfd_size_type aadr = (*a)->address;
2432 bfd_size_type badr = (*b)->address;
2433
2434 return (aadr < badr ? -1 : badr < aadr ? 1 : 0);
2435}
2436
2437#endif /* TARG_AUX */
2438
b34976b6 2439static bfd_boolean
252b5132
RH
2440coff_write_relocs (abfd, first_undef)
2441 bfd * abfd;
2442 int first_undef;
2443{
2444 asection *s;
2445
2446 for (s = abfd->sections; s != (asection *) NULL; s = s->next)
2447 {
2448 unsigned int i;
2449 struct external_reloc dst;
2450 arelent **p;
2451
2452#ifndef TARG_AUX
2453 p = s->orelocation;
2454#else
dc810e39 2455 {
ed781d5d 2456 /* Sort relocations before we write them out. */
dc810e39
AM
2457 bfd_size_type amt;
2458
2459 amt = s->reloc_count;
2460 amt *= sizeof (arelent *);
2461 p = (arelent **) bfd_malloc (amt);
2462 if (p == NULL && s->reloc_count > 0)
b34976b6 2463 return FALSE;
dc810e39
AM
2464 memcpy (p, s->orelocation, (size_t) amt);
2465 qsort (p, s->reloc_count, sizeof (arelent *), compare_arelent_ptr);
2466 }
252b5132
RH
2467#endif
2468
2469 if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0)
b34976b6 2470 return FALSE;
3e4554a2
DD
2471
2472#ifdef COFF_WITH_PE
e9168c1e 2473 if (obj_pe (abfd) && s->reloc_count >= 0xffff)
3e4554a2 2474 {
ed781d5d 2475 /* Encode real count here as first reloc. */
3e4554a2 2476 struct internal_reloc n;
ed781d5d 2477
3e4554a2 2478 memset ((PTR) & n, 0, sizeof (n));
ed781d5d 2479 /* Add one to count *this* reloc (grr). */
3e4554a2
DD
2480 n.r_vaddr = s->reloc_count + 1;
2481 coff_swap_reloc_out (abfd, &n, &dst);
dc810e39
AM
2482 if (bfd_bwrite ((PTR) & dst, (bfd_size_type) bfd_coff_relsz (abfd),
2483 abfd) != bfd_coff_relsz (abfd))
b34976b6 2484 return FALSE;
3e4554a2
DD
2485 }
2486#endif
2487
252b5132
RH
2488 for (i = 0; i < s->reloc_count; i++)
2489 {
2490 struct internal_reloc n;
2491 arelent *q = p[i];
ed781d5d 2492
252b5132
RH
2493 memset ((PTR) & n, 0, sizeof (n));
2494
2495 /* Now we've renumbered the symbols we know where the
2496 undefined symbols live in the table. Check the reloc
2497 entries for symbols who's output bfd isn't the right one.
2498 This is because the symbol was undefined (which means
2499 that all the pointers are never made to point to the same
2500 place). This is a bad thing,'cause the symbols attached
2501 to the output bfd are indexed, so that the relocation
2502 entries know which symbol index they point to. So we
e60b52c6 2503 have to look up the output symbol here. */
252b5132
RH
2504
2505 if (q->sym_ptr_ptr[0]->the_bfd != abfd)
2506 {
dc810e39 2507 int j;
252b5132
RH
2508 const char *sname = q->sym_ptr_ptr[0]->name;
2509 asymbol **outsyms = abfd->outsymbols;
ed781d5d 2510
dc810e39 2511 for (j = first_undef; outsyms[j]; j++)
252b5132 2512 {
dc810e39 2513 const char *intable = outsyms[j]->name;
ed781d5d 2514
252b5132 2515 if (strcmp (intable, sname) == 0) {
ed781d5d 2516 /* Got a hit, so repoint the reloc. */
dc810e39 2517 q->sym_ptr_ptr = outsyms + j;
252b5132
RH
2518 break;
2519 }
2520 }
2521 }
2522
2523 n.r_vaddr = q->address + s->vma;
2524
2525#ifdef R_IHCONST
2526 /* The 29k const/consth reloc pair is a real kludge. The consth
2527 part doesn't have a symbol; it has an offset. So rebuilt
2528 that here. */
2529 if (q->howto->type == R_IHCONST)
2530 n.r_symndx = q->addend;
2531 else
2532#endif
2533 if (q->sym_ptr_ptr)
2534 {
6c784c9a
TW
2535#ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P
2536 if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q,s))
2537#else
250d94fd
AM
2538 if ((*q->sym_ptr_ptr)->section == bfd_abs_section_ptr
2539 && ((*q->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0)
6c784c9a 2540#endif
252b5132
RH
2541 /* This is a relocation relative to the absolute symbol. */
2542 n.r_symndx = -1;
2543 else
2544 {
2545 n.r_symndx = get_index ((*(q->sym_ptr_ptr)));
2546 /* Take notice if the symbol reloc points to a symbol
2547 we don't have in our symbol table. What should we
2548 do for this?? */
2549 if (n.r_symndx > obj_conv_table_size (abfd))
2550 abort ();
2551 }
2552 }
2553
2554#ifdef SWAP_OUT_RELOC_OFFSET
2555 n.r_offset = q->addend;
2556#endif
2557
2558#ifdef SELECT_RELOC
ed781d5d 2559 /* Work out reloc type from what is required. */
252b5132
RH
2560 SELECT_RELOC (n, q->howto);
2561#else
2562 n.r_type = q->howto->type;
2563#endif
2564 coff_swap_reloc_out (abfd, &n, &dst);
ed781d5d 2565
dc810e39
AM
2566 if (bfd_bwrite ((PTR) & dst, (bfd_size_type) bfd_coff_relsz (abfd),
2567 abfd) != bfd_coff_relsz (abfd))
b34976b6 2568 return FALSE;
252b5132
RH
2569 }
2570
2571#ifdef TARG_AUX
2572 if (p != NULL)
2573 free (p);
2574#endif
2575 }
2576
b34976b6 2577 return TRUE;
252b5132
RH
2578}
2579
2580/* Set flags and magic number of a coff file from architecture and machine
b34976b6 2581 type. Result is TRUE if we can represent the arch&type, FALSE if not. */
252b5132 2582
b34976b6 2583static bfd_boolean
252b5132
RH
2584coff_set_flags (abfd, magicp, flagsp)
2585 bfd * abfd;
5f771d47
ILT
2586 unsigned int *magicp ATTRIBUTE_UNUSED;
2587 unsigned short *flagsp ATTRIBUTE_UNUSED;
252b5132
RH
2588{
2589 switch (bfd_get_arch (abfd))
2590 {
2591#ifdef Z8KMAGIC
2592 case bfd_arch_z8k:
2593 *magicp = Z8KMAGIC;
2594 switch (bfd_get_mach (abfd))
2595 {
2596 case bfd_mach_z8001:
2597 *flagsp = F_Z8001;
2598 break;
2599 case bfd_mach_z8002:
2600 *flagsp = F_Z8002;
2601 break;
2602 default:
b34976b6 2603 return FALSE;
252b5132 2604 }
b34976b6 2605 return TRUE;
252b5132
RH
2606#endif
2607#ifdef I960ROMAGIC
2608
2609 case bfd_arch_i960:
2610
2611 {
2612 unsigned flags;
2613 *magicp = I960ROMAGIC;
2614 /*
2615 ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC :
2616 I960RWMAGIC); FIXME???
2617 */
2618 switch (bfd_get_mach (abfd))
2619 {
2620 case bfd_mach_i960_core:
2621 flags = F_I960CORE;
2622 break;
2623 case bfd_mach_i960_kb_sb:
2624 flags = F_I960KB;
2625 break;
2626 case bfd_mach_i960_mc:
2627 flags = F_I960MC;
2628 break;
2629 case bfd_mach_i960_xa:
2630 flags = F_I960XA;
2631 break;
2632 case bfd_mach_i960_ca:
2633 flags = F_I960CA;
2634 break;
2635 case bfd_mach_i960_ka_sa:
2636 flags = F_I960KA;
2637 break;
2638 case bfd_mach_i960_jx:
2639 flags = F_I960JX;
2640 break;
2641 case bfd_mach_i960_hx:
2642 flags = F_I960HX;
2643 break;
2644 default:
b34976b6 2645 return FALSE;
252b5132
RH
2646 }
2647 *flagsp = flags;
b34976b6 2648 return TRUE;
252b5132
RH
2649 }
2650 break;
2651#endif
2652
2653#ifdef TIC30MAGIC
2654 case bfd_arch_tic30:
2655 *magicp = TIC30MAGIC;
b34976b6 2656 return TRUE;
252b5132 2657#endif
81635ce4
TW
2658
2659#ifdef TICOFF_DEFAULT_MAGIC
2660 case TICOFF_TARGET_ARCH:
ed781d5d 2661 /* If there's no indication of which version we want, use the default. */
81635ce4
TW
2662 if (!abfd->xvec )
2663 *magicp = TICOFF_DEFAULT_MAGIC;
2664 else
2665 {
ed781d5d 2666 /* We may want to output in a different COFF version. */
81635ce4
TW
2667 switch (abfd->xvec->name[4])
2668 {
2669 case '0':
2670 *magicp = TICOFF0MAGIC;
2671 break;
2672 case '1':
2673 *magicp = TICOFF1MAGIC;
2674 break;
2675 case '2':
2676 *magicp = TICOFF2MAGIC;
2677 break;
2678 default:
b34976b6 2679 return FALSE;
81635ce4
TW
2680 }
2681 }
0da35f8b 2682 TICOFF_TARGET_MACHINE_SET (flagsp, bfd_get_mach (abfd));
b34976b6 2683 return TRUE;
81635ce4
TW
2684#endif
2685
252b5132
RH
2686#ifdef TIC80_ARCH_MAGIC
2687 case bfd_arch_tic80:
2688 *magicp = TIC80_ARCH_MAGIC;
b34976b6 2689 return TRUE;
252b5132
RH
2690#endif
2691#ifdef ARMMAGIC
2692 case bfd_arch_arm:
17505c5c
NC
2693#ifdef ARM_WINCE
2694 * magicp = ARMPEMAGIC;
2695#else
252b5132 2696 * magicp = ARMMAGIC;
17505c5c 2697#endif
252b5132
RH
2698 * flagsp = 0;
2699 if (APCS_SET (abfd))
2700 {
2701 if (APCS_26_FLAG (abfd))
2702 * flagsp |= F_APCS26;
e60b52c6 2703
252b5132
RH
2704 if (APCS_FLOAT_FLAG (abfd))
2705 * flagsp |= F_APCS_FLOAT;
e60b52c6 2706
252b5132 2707 if (PIC_FLAG (abfd))
948221a8 2708 * flagsp |= F_PIC;
252b5132
RH
2709 }
2710 if (INTERWORK_SET (abfd) && INTERWORK_FLAG (abfd))
2711 * flagsp |= F_INTERWORK;
2712 switch (bfd_get_mach (abfd))
2713 {
2714 case bfd_mach_arm_2: * flagsp |= F_ARM_2; break;
2715 case bfd_mach_arm_2a: * flagsp |= F_ARM_2a; break;
2716 case bfd_mach_arm_3: * flagsp |= F_ARM_3; break;
2717 case bfd_mach_arm_3M: * flagsp |= F_ARM_3M; break;
2718 case bfd_mach_arm_4: * flagsp |= F_ARM_4; break;
2719 case bfd_mach_arm_4T: * flagsp |= F_ARM_4T; break;
478d07d6 2720 case bfd_mach_arm_5: * flagsp |= F_ARM_5; break;
f13b834e
NC
2721 /* FIXME: we do not have F_ARM vaues greater than F_ARM_5.
2722 See also the comment in coff_set_arch_mach_hook(). */
077b8428
NC
2723 case bfd_mach_arm_5T: * flagsp |= F_ARM_5; break;
2724 case bfd_mach_arm_5TE: * flagsp |= F_ARM_5; break;
2725 case bfd_mach_arm_XScale: * flagsp |= F_ARM_5; break;
252b5132 2726 }
b34976b6 2727 return TRUE;
252b5132
RH
2728#endif
2729#ifdef PPCMAGIC
2730 case bfd_arch_powerpc:
2731 *magicp = PPCMAGIC;
b34976b6 2732 return TRUE;
252b5132
RH
2733 break;
2734#endif
2735#ifdef I386MAGIC
2736 case bfd_arch_i386:
2737 *magicp = I386MAGIC;
2738#ifdef LYNXOS
e60b52c6 2739 /* Just overwrite the usual value if we're doing Lynx. */
252b5132
RH
2740 *magicp = LYNXCOFFMAGIC;
2741#endif
b34976b6 2742 return TRUE;
252b5132
RH
2743 break;
2744#endif
2745#ifdef I860MAGIC
2746 case bfd_arch_i860:
2747 *magicp = I860MAGIC;
b34976b6 2748 return TRUE;
252b5132
RH
2749 break;
2750#endif
fac41780
JW
2751#ifdef IA64MAGIC
2752 case bfd_arch_ia64:
2753 *magicp = IA64MAGIC;
b34976b6 2754 return TRUE;
fac41780
JW
2755 break;
2756#endif
252b5132
RH
2757#ifdef MC68MAGIC
2758 case bfd_arch_m68k:
2759#ifdef APOLLOM68KMAGIC
2760 *magicp = APOLLO_COFF_VERSION_NUMBER;
2761#else
2762 /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */
2763#ifdef NAMES_HAVE_UNDERSCORE
2764 *magicp = MC68KBCSMAGIC;
2765#else
2766 *magicp = MC68MAGIC;
2767#endif
2768#endif
2769#ifdef LYNXOS
e60b52c6 2770 /* Just overwrite the usual value if we're doing Lynx. */
252b5132
RH
2771 *magicp = LYNXCOFFMAGIC;
2772#endif
b34976b6 2773 return TRUE;
252b5132
RH
2774 break;
2775#endif
2776
2777#ifdef MC88MAGIC
2778 case bfd_arch_m88k:
2779 *magicp = MC88OMAGIC;
b34976b6 2780 return TRUE;
252b5132
RH
2781 break;
2782#endif
2783#ifdef H8300MAGIC
2784 case bfd_arch_h8300:
2785 switch (bfd_get_mach (abfd))
2786 {
2787 case bfd_mach_h8300:
2788 *magicp = H8300MAGIC;
b34976b6 2789 return TRUE;
252b5132
RH
2790 case bfd_mach_h8300h:
2791 *magicp = H8300HMAGIC;
b34976b6 2792 return TRUE;
252b5132
RH
2793 case bfd_mach_h8300s:
2794 *magicp = H8300SMAGIC;
b34976b6 2795 return TRUE;
8d9cd6b1
NC
2796 case bfd_mach_h8300hn:
2797 *magicp = H8300HNMAGIC;
2798 return TRUE;
2799 case bfd_mach_h8300sn:
2800 *magicp = H8300SNMAGIC;
2801 return TRUE;
252b5132
RH
2802 }
2803 break;
2804#endif
2805
2806#ifdef SH_ARCH_MAGIC_BIG
2807 case bfd_arch_sh:
17505c5c
NC
2808#ifdef COFF_IMAGE_WITH_PE
2809 *magicp = SH_ARCH_MAGIC_WINCE;
2810#else
252b5132
RH
2811 if (bfd_big_endian (abfd))
2812 *magicp = SH_ARCH_MAGIC_BIG;
2813 else
2814 *magicp = SH_ARCH_MAGIC_LITTLE;
17505c5c 2815#endif
b34976b6 2816 return TRUE;
17505c5c
NC
2817 break;
2818#endif
2819
2820#ifdef MIPS_ARCH_MAGIC_WINCE
2821 case bfd_arch_mips:
2822 *magicp = MIPS_ARCH_MAGIC_WINCE;
b34976b6 2823 return TRUE;
252b5132
RH
2824 break;
2825#endif
2826
2827#ifdef SPARCMAGIC
2828 case bfd_arch_sparc:
2829 *magicp = SPARCMAGIC;
2830#ifdef LYNXOS
e60b52c6 2831 /* Just overwrite the usual value if we're doing Lynx. */
252b5132
RH
2832 *magicp = LYNXCOFFMAGIC;
2833#endif
b34976b6 2834 return TRUE;
252b5132
RH
2835 break;
2836#endif
2837
2838#ifdef H8500MAGIC
2839 case bfd_arch_h8500:
2840 *magicp = H8500MAGIC;
b34976b6 2841 return TRUE;
252b5132
RH
2842 break;
2843#endif
2844#ifdef A29K_MAGIC_BIG
2845 case bfd_arch_a29k:
2846 if (bfd_big_endian (abfd))
2847 *magicp = A29K_MAGIC_BIG;
2848 else
2849 *magicp = A29K_MAGIC_LITTLE;
b34976b6 2850 return TRUE;
252b5132
RH
2851 break;
2852#endif
2853
2854#ifdef WE32KMAGIC
2855 case bfd_arch_we32k:
2856 *magicp = WE32KMAGIC;
b34976b6 2857 return TRUE;
252b5132
RH
2858 break;
2859#endif
2860
7f6d05e8 2861#ifdef RS6000COFF_C
252b5132
RH
2862 case bfd_arch_rs6000:
2863#ifndef PPCMAGIC
2864 case bfd_arch_powerpc:
2865#endif
eb1e0e80
NC
2866 BFD_ASSERT (bfd_get_flavour (abfd) == bfd_target_xcoff_flavour);
2867 *magicp = bfd_xcoff_magic_number (abfd);
b34976b6 2868 return TRUE;
252b5132
RH
2869 break;
2870#endif
2871
2872#ifdef MCOREMAGIC
2873 case bfd_arch_mcore:
2874 * magicp = MCOREMAGIC;
b34976b6 2875 return TRUE;
252b5132 2876#endif
e60b52c6 2877
371e71b8
NC
2878#ifdef W65MAGIC
2879 case bfd_arch_w65:
2880 *magicp = W65MAGIC;
b34976b6 2881 return TRUE;
371e71b8
NC
2882#endif
2883
3b16e843
NC
2884#ifdef OR32_MAGIC_BIG
2885 case bfd_arch_or32:
2886 if (bfd_big_endian (abfd))
2887 * magicp = OR32_MAGIC_BIG;
2888 else
2889 * magicp = OR32_MAGIC_LITTLE;
b34976b6 2890 return TRUE;
3b16e843
NC
2891#endif
2892
371e71b8 2893 default: /* Unknown architecture. */
b34976b6 2894 /* Fall through to "return FALSE" below, to avoid
371e71b8 2895 "statement never reached" errors on the one below. */
252b5132
RH
2896 break;
2897 }
2898
b34976b6 2899 return FALSE;
252b5132
RH
2900}
2901
b34976b6 2902static bfd_boolean
252b5132
RH
2903coff_set_arch_mach (abfd, arch, machine)
2904 bfd * abfd;
2905 enum bfd_architecture arch;
2906 unsigned long machine;
2907{
2908 unsigned dummy1;
2909 unsigned short dummy2;
2910
2911 if (! bfd_default_set_arch_mach (abfd, arch, machine))
b34976b6 2912 return FALSE;
252b5132 2913
82e51918
AM
2914 if (arch != bfd_arch_unknown
2915 && ! coff_set_flags (abfd, &dummy1, &dummy2))
b34976b6 2916 return FALSE; /* We can't represent this type */
252b5132 2917
b34976b6 2918 return TRUE; /* We're easy ... */
252b5132
RH
2919}
2920
75cc7189
ILT
2921#ifdef COFF_IMAGE_WITH_PE
2922
2923/* This is used to sort sections by VMA, as required by PE image
2924 files. */
2925
2926static int sort_by_secaddr PARAMS ((const PTR, const PTR));
2927
2928static int
2929sort_by_secaddr (arg1, arg2)
2930 const PTR arg1;
2931 const PTR arg2;
2932{
2933 const asection *a = *(const asection **) arg1;
2934 const asection *b = *(const asection **) arg2;
2935
2936 if (a->vma < b->vma)
2937 return -1;
2938 else if (a->vma > b->vma)
2939 return 1;
2940 else
2941 return 0;
2942}
2943
2944#endif /* COFF_IMAGE_WITH_PE */
252b5132 2945
e60b52c6 2946/* Calculate the file position for each section. */
252b5132
RH
2947
2948#ifndef I960
2949#define ALIGN_SECTIONS_IN_FILE
2950#endif
81635ce4 2951#if defined(TIC80COFF) || defined(TICOFF)
252b5132
RH
2952#undef ALIGN_SECTIONS_IN_FILE
2953#endif
2954
b34976b6 2955static bfd_boolean
252b5132
RH
2956coff_compute_section_file_positions (abfd)
2957 bfd * abfd;
2958{
2959 asection *current;
2960 asection *previous = (asection *) NULL;
6b3b007b 2961 file_ptr sofar = bfd_coff_filhsz (abfd);
b34976b6 2962 bfd_boolean align_adjust;
252b5132
RH
2963#ifdef ALIGN_SECTIONS_IN_FILE
2964 file_ptr old_sofar;
2965#endif
2966
2967#ifdef RS6000COFF_C
2968 /* On XCOFF, if we have symbols, set up the .debug section. */
2969 if (bfd_get_symcount (abfd) > 0)
2970 {
2971 bfd_size_type sz;
2972 bfd_size_type i, symcount;
2973 asymbol **symp;
2974
2975 sz = 0;
2976 symcount = bfd_get_symcount (abfd);
2977 for (symp = abfd->outsymbols, i = 0; i < symcount; symp++, i++)
2978 {
2979 coff_symbol_type *cf;
2980
2981 cf = coff_symbol_from (abfd, *symp);
2982 if (cf != NULL
2983 && cf->native != NULL
2984 && SYMNAME_IN_DEBUG (&cf->native->u.syment))
2985 {
2986 size_t len;
2987
2988 len = strlen (bfd_asymbol_name (*symp));
7f6d05e8
CP
2989 if (len > SYMNMLEN || bfd_coff_force_symnames_in_strings (abfd))
2990 sz += len + 1 + bfd_coff_debug_string_prefix_length (abfd);
252b5132
RH
2991 }
2992 }
2993 if (sz > 0)
2994 {
2995 asection *dsec;
2996
2997 dsec = bfd_make_section_old_way (abfd, ".debug");
2998 if (dsec == NULL)
2999 abort ();
3000 dsec->_raw_size = sz;
3001 dsec->flags |= SEC_HAS_CONTENTS;
3002 }
3003 }
3004#endif
3005
3006#ifdef COFF_IMAGE_WITH_PE
3007 int page_size;
e60b52c6 3008 if (coff_data (abfd)->link_info)
252b5132
RH
3009 {
3010 page_size = pe_data (abfd)->pe_opthdr.FileAlignment;
3011 }
3012 else
3013 page_size = PE_DEF_FILE_ALIGNMENT;
3014#else
3015#ifdef COFF_PAGE_SIZE
3016 int page_size = COFF_PAGE_SIZE;
3017#endif
3018#endif
3019
3020 if (bfd_get_start_address (abfd))
3021 {
3022 /* A start address may have been added to the original file. In this
3023 case it will need an optional header to record it. */
3024 abfd->flags |= EXEC_P;
3025 }
3026
3027 if (abfd->flags & EXEC_P)
6b3b007b 3028 sofar += bfd_coff_aoutsz (abfd);
252b5132
RH
3029#ifdef RS6000COFF_C
3030 else if (xcoff_data (abfd)->full_aouthdr)
6b3b007b 3031 sofar += bfd_coff_aoutsz (abfd);
252b5132
RH
3032 else
3033 sofar += SMALL_AOUTSZ;
3034#endif
3035
6b3b007b 3036 sofar += abfd->section_count * bfd_coff_scnhsz (abfd);
252b5132
RH
3037
3038#ifdef RS6000COFF_C
3039 /* XCOFF handles overflows in the reloc and line number count fields
3040 by allocating a new section header to hold the correct counts. */
3041 for (current = abfd->sections; current != NULL; current = current->next)
3042 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
6b3b007b 3043 sofar += bfd_coff_scnhsz (abfd);
252b5132
RH
3044#endif
3045
75cc7189
ILT
3046#ifdef COFF_IMAGE_WITH_PE
3047 {
3048 /* PE requires the sections to be in memory order when listed in
3049 the section headers. It also does not like empty loadable
3050 sections. The sections apparently do not have to be in the
3051 right order in the image file itself, but we do need to get the
3052 target_index values right. */
3053
dc810e39 3054 unsigned int count;
75cc7189 3055 asection **section_list;
dc810e39 3056 unsigned int i;
75cc7189 3057 int target_index;
dc810e39 3058 bfd_size_type amt;
75cc7189
ILT
3059
3060 count = 0;
3061 for (current = abfd->sections; current != NULL; current = current->next)
3062 ++count;
3063
3064 /* We allocate an extra cell to simplify the final loop. */
dc810e39
AM
3065 amt = sizeof (struct asection *) * (count + 1);
3066 section_list = bfd_malloc (amt);
75cc7189 3067 if (section_list == NULL)
b34976b6 3068 return FALSE;
75cc7189
ILT
3069
3070 i = 0;
3071 for (current = abfd->sections; current != NULL; current = current->next)
3072 {
3073 section_list[i] = current;
3074 ++i;
3075 }
3076 section_list[i] = NULL;
3077
3078 qsort (section_list, count, sizeof (asection *), sort_by_secaddr);
3079
3080 /* Rethread the linked list into sorted order; at the same time,
3081 assign target_index values. */
3082 target_index = 1;
3083 abfd->sections = section_list[0];
3084 for (i = 0; i < count; i++)
3085 {
3086 current = section_list[i];
3087 current->next = section_list[i + 1];
3088
3089 /* Later, if the section has zero size, we'll be throwing it
3090 away, so we don't want to number it now. Note that having
3091 a zero size and having real contents are different
3092 concepts: .bss has no contents, but (usually) non-zero
3093 size. */
3094 if (current->_raw_size == 0)
3095 {
3096 /* Discard. However, it still might have (valid) symbols
3097 in it, so arbitrarily set it to section 1 (indexing is
3098 1-based here; usually .text). __end__ and other
3099 contents of .endsection really have this happen.
3100 FIXME: This seems somewhat dubious. */
3101 current->target_index = 1;
3102 }
3103 else
3104 current->target_index = target_index++;
3105 }
fd55a5df 3106 abfd->section_tail = &current->next;
75cc7189 3107
2fca4467 3108 free (section_list);
75cc7189
ILT
3109 }
3110#else /* ! COFF_IMAGE_WITH_PE */
3111 {
3112 /* Set the target_index field. */
3113 int target_index;
3114
3115 target_index = 1;
3116 for (current = abfd->sections; current != NULL; current = current->next)
3117 current->target_index = target_index++;
3118 }
3119#endif /* ! COFF_IMAGE_WITH_PE */
3120
b34976b6 3121 align_adjust = FALSE;
75cc7189 3122 for (current = abfd->sections;
252b5132 3123 current != (asection *) NULL;
75cc7189 3124 current = current->next)
252b5132
RH
3125 {
3126#ifdef COFF_IMAGE_WITH_PE
75cc7189
ILT
3127 /* With PE we have to pad each section to be a multiple of its
3128 page size too, and remember both sizes. */
3129 if (coff_section_data (abfd, current) == NULL)
252b5132 3130 {
dc810e39
AM
3131 bfd_size_type amt = sizeof (struct coff_section_tdata);
3132 current->used_by_bfd = (PTR) bfd_zalloc (abfd, amt);
75cc7189 3133 if (current->used_by_bfd == NULL)
b34976b6 3134 return FALSE;
252b5132 3135 }
75cc7189
ILT
3136 if (pei_section_data (abfd, current) == NULL)
3137 {
dc810e39
AM
3138 bfd_size_type amt = sizeof (struct pei_section_tdata);
3139 coff_section_data (abfd, current)->tdata
3140 = (PTR) bfd_zalloc (abfd, amt);
75cc7189 3141 if (coff_section_data (abfd, current)->tdata == NULL)
b34976b6 3142 return FALSE;
75cc7189
ILT
3143 }
3144 if (pei_section_data (abfd, current)->virt_size == 0)
3145 pei_section_data (abfd, current)->virt_size = current->_raw_size;
252b5132
RH
3146#endif
3147
75cc7189 3148 /* Only deal with sections which have contents. */
252b5132
RH
3149 if (!(current->flags & SEC_HAS_CONTENTS))
3150 continue;
3151
75cc7189
ILT
3152#ifdef COFF_IMAGE_WITH_PE
3153 /* Make sure we skip empty sections in a PE image. */
3154 if (current->_raw_size == 0)
3155 continue;
3156#endif
3157
252b5132
RH
3158 /* Align the sections in the file to the same boundary on
3159 which they are aligned in virtual memory. I960 doesn't
3160 do this (FIXME) so we can stay in sync with Intel. 960
e60b52c6 3161 doesn't yet page from files... */
252b5132
RH
3162#ifdef ALIGN_SECTIONS_IN_FILE
3163 if ((abfd->flags & EXEC_P) != 0)
3164 {
ed781d5d
NC
3165 /* Make sure this section is aligned on the right boundary - by
3166 padding the previous section up if necessary. */
252b5132
RH
3167
3168 old_sofar = sofar;
47ede03a
TR
3169#ifdef RS6000COFF_C
3170 /* AIX loader checks the text section alignment of (vma - filepos)
3171 So even though the filepos may be aligned wrt the o_algntext, for
19852a2a 3172 AIX executables, this check fails. This shows up when a native
47ede03a
TR
3173 AIX executable is stripped with gnu strip because the default vma
3174 of native is 0x10000150 but default for gnu is 0x10000140. Gnu
b34976b6 3175 stripped gnu excutable passes this check because the filepos is
f3813499
TR
3176 0x0140. This problem also show up with 64 bit shared objects. The
3177 data section must also be aligned. */
b34976b6
AM
3178 if (!strcmp (current->name, _TEXT)
3179 || !strcmp (current->name, _DATA))
47ede03a
TR
3180 {
3181 bfd_vma pad;
3182 bfd_vma align;
3183
3184 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3185
3186 align = 1 << current->alignment_power;
3187 pad = abs (current->vma - sofar) % align;
b34976b6
AM
3188
3189 if (pad)
47ede03a
TR
3190 {
3191 pad = align - pad;
3192 sofar += pad;
3193 }
3194 }
3195 else
3196#else
3197 {
3198 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3199 }
3200#endif
252b5132 3201 if (previous != (asection *) NULL)
ed781d5d 3202 previous->_raw_size += sofar - old_sofar;
252b5132
RH
3203 }
3204
3205#endif
3206
3207 /* In demand paged files the low order bits of the file offset
3208 must match the low order bits of the virtual address. */
3209#ifdef COFF_PAGE_SIZE
3210 if ((abfd->flags & D_PAGED) != 0
3211 && (current->flags & SEC_ALLOC) != 0)
3212 sofar += (current->vma - sofar) % page_size;
3213#endif
3214 current->filepos = sofar;
3215
3216#ifdef COFF_IMAGE_WITH_PE
75cc7189 3217 /* Set the padded size. */
252b5132
RH
3218 current->_raw_size = (current->_raw_size + page_size -1) & -page_size;
3219#endif
3220
3221 sofar += current->_raw_size;
3222
3223#ifdef ALIGN_SECTIONS_IN_FILE
ed781d5d 3224 /* Make sure that this section is of the right size too. */
252b5132
RH
3225 if ((abfd->flags & EXEC_P) == 0)
3226 {
3227 bfd_size_type old_size;
3228
3229 old_size = current->_raw_size;
3230 current->_raw_size = BFD_ALIGN (current->_raw_size,
3231 1 << current->alignment_power);
3232 align_adjust = current->_raw_size != old_size;
3233 sofar += current->_raw_size - old_size;
3234 }
3235 else
3236 {
3237 old_sofar = sofar;
3238 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3239 align_adjust = sofar != old_sofar;
3240 current->_raw_size += sofar - old_sofar;
3241 }
3242#endif
3243
3244#ifdef COFF_IMAGE_WITH_PE
3245 /* For PE we need to make sure we pad out to the aligned
3246 _raw_size, in case the caller only writes out data to the
3247 unaligned _raw_size. */
3248 if (pei_section_data (abfd, current)->virt_size < current->_raw_size)
b34976b6 3249 align_adjust = TRUE;
252b5132
RH
3250#endif
3251
3252#ifdef _LIB
3253 /* Force .lib sections to start at zero. The vma is then
3254 incremented in coff_set_section_contents. This is right for
3255 SVR3.2. */
3256 if (strcmp (current->name, _LIB) == 0)
3257 bfd_set_section_vma (abfd, current, 0);
3258#endif
3259
3260 previous = current;
3261 }
3262
3263 /* It is now safe to write to the output file. If we needed an
3264 alignment adjustment for the last section, then make sure that
3265 there is a byte at offset sofar. If there are no symbols and no
3266 relocs, then nothing follows the last section. If we don't force
3267 the last byte out, then the file may appear to be truncated. */
3268 if (align_adjust)
3269 {
3270 bfd_byte b;
3271
3272 b = 0;
3273 if (bfd_seek (abfd, sofar - 1, SEEK_SET) != 0
dc810e39 3274 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
b34976b6 3275 return FALSE;
252b5132
RH
3276 }
3277
3278 /* Make sure the relocations are aligned. We don't need to make
3279 sure that this byte exists, because it will only matter if there
3280 really are relocs. */
3281 sofar = BFD_ALIGN (sofar, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER);
3282
3283 obj_relocbase (abfd) = sofar;
b34976b6 3284 abfd->output_has_begun = TRUE;
252b5132 3285
b34976b6 3286 return TRUE;
252b5132
RH
3287}
3288
3289#if 0
3290
3291/* This can never work, because it is called too late--after the
3292 section positions have been set. I can't figure out what it is
3293 for, so I am going to disable it--Ian Taylor 20 March 1996. */
3294
3295/* If .file, .text, .data, .bss symbols are missing, add them. */
3296/* @@ Should we only be adding missing symbols, or overriding the aux
3297 values for existing section symbols? */
b34976b6 3298static bfd_boolean
252b5132
RH
3299coff_add_missing_symbols (abfd)
3300 bfd *abfd;
3301{
3302 unsigned int nsyms = bfd_get_symcount (abfd);
3303 asymbol **sympp = abfd->outsymbols;
3304 asymbol **sympp2;
3305 unsigned int i;
3306 int need_text = 1, need_data = 1, need_bss = 1, need_file = 1;
dc810e39 3307 bfd_size_type amt;
252b5132
RH
3308
3309 for (i = 0; i < nsyms; i++)
3310 {
3311 coff_symbol_type *csym = coff_symbol_from (abfd, sympp[i]);
dc810e39 3312 const char *name;
ed781d5d 3313
252b5132
RH
3314 if (csym)
3315 {
ed781d5d
NC
3316 /* Only do this if there is a coff representation of the input
3317 symbol. */
252b5132
RH
3318 if (csym->native && csym->native->u.syment.n_sclass == C_FILE)
3319 {
3320 need_file = 0;
3321 continue;
3322 }
3323 name = csym->symbol.name;
3324 if (!name)
3325 continue;
3326 if (!strcmp (name, _TEXT))
3327 need_text = 0;
3328#ifdef APOLLO_M68
3329 else if (!strcmp (name, ".wtext"))
3330 need_text = 0;
3331#endif
3332 else if (!strcmp (name, _DATA))
3333 need_data = 0;
3334 else if (!strcmp (name, _BSS))
3335 need_bss = 0;
3336 }
3337 }
3338 /* Now i == bfd_get_symcount (abfd). */
3339 /* @@ For now, don't deal with .file symbol. */
3340 need_file = 0;
3341
3342 if (!need_text && !need_data && !need_bss && !need_file)
b34976b6 3343 return TRUE;
252b5132 3344 nsyms += need_text + need_data + need_bss + need_file;
dc810e39
AM
3345 amt = nsyms;
3346 amt *= sizeof (asymbol *);
3347 sympp2 = (asymbol **) bfd_alloc (abfd, amt);
252b5132 3348 if (!sympp2)
b34976b6 3349 return FALSE;
252b5132 3350 memcpy (sympp2, sympp, i * sizeof (asymbol *));
ed781d5d 3351
252b5132 3352 if (need_file)
ed781d5d
NC
3353 /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */
3354 abort ();
3355
252b5132
RH
3356 if (need_text)
3357 sympp2[i++] = coff_section_symbol (abfd, _TEXT);
3358 if (need_data)
3359 sympp2[i++] = coff_section_symbol (abfd, _DATA);
3360 if (need_bss)
3361 sympp2[i++] = coff_section_symbol (abfd, _BSS);
3362 BFD_ASSERT (i == nsyms);
3363 bfd_set_symtab (abfd, sympp2, nsyms);
b34976b6 3364 return TRUE;
252b5132
RH
3365}
3366
3367#endif /* 0 */
3368
05793179
NC
3369#ifdef COFF_IMAGE_WITH_PE
3370
3371static unsigned int pelength;
3372static unsigned int peheader;
3373
b34976b6 3374static bfd_boolean
05793179
NC
3375coff_read_word (abfd, value)
3376 bfd *abfd;
3377 unsigned int *value;
3378{
3379 unsigned char b[2];
3380 int status;
3381
3382 status = bfd_bread (b, (bfd_size_type) 2, abfd);
3383 if (status < 1)
3384 {
3385 *value = 0;
b34976b6 3386 return FALSE;
05793179
NC
3387 }
3388
3389 if (status == 1)
3390 *value = (unsigned int) b[0];
3391 else
3392 *value = (unsigned int) (b[0] + (b[1] << 8));
3393
3394 pelength += (unsigned int) status;
3395
b34976b6 3396 return TRUE;
05793179
NC
3397}
3398
3399static unsigned int
3400coff_compute_checksum (abfd)
3401 bfd *abfd;
3402{
b34976b6 3403 bfd_boolean more_data;
05793179
NC
3404 file_ptr filepos;
3405 unsigned int value;
3406 unsigned int total;
3407
3408 total = 0;
3409 pelength = 0;
3410 filepos = (file_ptr) 0;
3411
3412 do
3413 {
3414 if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
3415 return 0;
3416
3417 more_data = coff_read_word (abfd, &value);
3418 total += value;
3419 total = 0xffff & (total + (total >> 0x10));
3420 filepos += 2;
3421 }
3422 while (more_data);
3423
3424 return (0xffff & (total + (total >> 0x10)));
3425}
3426
b34976b6 3427static bfd_boolean
05793179
NC
3428coff_apply_checksum (abfd)
3429 bfd *abfd;
3430{
3431 unsigned int computed;
3432 unsigned int checksum = 0;
3433
3434 if (bfd_seek (abfd, 0x3c, SEEK_SET) != 0)
b34976b6 3435 return FALSE;
05793179
NC
3436
3437 if (!coff_read_word (abfd, &peheader))
b34976b6 3438 return FALSE;
05793179
NC
3439
3440 if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0)
b34976b6 3441 return FALSE;
05793179
NC
3442
3443 checksum = 0;
3444 bfd_bwrite (&checksum, (bfd_size_type) 4, abfd);
3445
3446 if (bfd_seek (abfd, peheader, SEEK_SET) != 0)
b34976b6 3447 return FALSE;
05793179
NC
3448
3449 computed = coff_compute_checksum (abfd);
3450
3451 checksum = computed + pelength;
3452
3453 if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0)
b34976b6 3454 return FALSE;
05793179
NC
3455
3456 bfd_bwrite (&checksum, (bfd_size_type) 4, abfd);
3457
b34976b6 3458 return TRUE;
05793179
NC
3459}
3460
3461#endif /* COFF_IMAGE_WITH_PE */
3462
252b5132
RH
3463/* SUPPRESS 558 */
3464/* SUPPRESS 529 */
b34976b6 3465static bfd_boolean
252b5132
RH
3466coff_write_object_contents (abfd)
3467 bfd * abfd;
3468{
3469 asection *current;
b34976b6
AM
3470 bfd_boolean hasrelocs = FALSE;
3471 bfd_boolean haslinno = FALSE;
3472 bfd_boolean hasdebug = FALSE;
252b5132
RH
3473 file_ptr scn_base;
3474 file_ptr reloc_base;
3475 file_ptr lineno_base;
3476 file_ptr sym_base;
3e4554a2 3477 unsigned long reloc_size = 0, reloc_count = 0;
252b5132 3478 unsigned long lnno_size = 0;
b34976b6 3479 bfd_boolean long_section_names;
252b5132
RH
3480 asection *text_sec = NULL;
3481 asection *data_sec = NULL;
3482 asection *bss_sec = NULL;
3483 struct internal_filehdr internal_f;
3484 struct internal_aouthdr internal_a;
3485#ifdef COFF_LONG_SECTION_NAMES
3486 size_t string_size = STRING_SIZE_SIZE;
3487#endif
3488
3489 bfd_set_error (bfd_error_system_call);
3490
3491 /* Make a pass through the symbol table to count line number entries and
ed781d5d 3492 put them into the correct asections. */
252b5132 3493
6b3b007b 3494 lnno_size = coff_count_linenumbers (abfd) * bfd_coff_linesz (abfd);
252b5132 3495
82e51918 3496 if (! abfd->output_has_begun)
252b5132
RH
3497 {
3498 if (! coff_compute_section_file_positions (abfd))
b34976b6 3499 return FALSE;
252b5132
RH
3500 }
3501
3502 reloc_base = obj_relocbase (abfd);
3503
ed781d5d 3504 /* Work out the size of the reloc and linno areas. */
252b5132
RH
3505
3506 for (current = abfd->sections; current != NULL; current =
3507 current->next)
3e4554a2
DD
3508 {
3509#ifdef COFF_WITH_PE
ed781d5d 3510 /* We store the actual reloc count in the first reloc's addr. */
e9168c1e 3511 if (obj_pe (abfd) && current->reloc_count >= 0xffff)
3e4554a2
DD
3512 reloc_count ++;
3513#endif
3514 reloc_count += current->reloc_count;
3515 }
3516
3517 reloc_size = reloc_count * bfd_coff_relsz (abfd);
252b5132
RH
3518
3519 lineno_base = reloc_base + reloc_size;
3520 sym_base = lineno_base + lnno_size;
3521
ed781d5d 3522 /* Indicate in each section->line_filepos its actual file address. */
252b5132
RH
3523 for (current = abfd->sections; current != NULL; current =
3524 current->next)
3525 {
3526 if (current->lineno_count)
3527 {
3528 current->line_filepos = lineno_base;
3529 current->moving_line_filepos = lineno_base;
6b3b007b 3530 lineno_base += current->lineno_count * bfd_coff_linesz (abfd);
252b5132
RH
3531 }
3532 else
3533 {
3534 current->line_filepos = 0;
3535 }
3536 if (current->reloc_count)
3537 {
3538 current->rel_filepos = reloc_base;
6b3b007b 3539 reloc_base += current->reloc_count * bfd_coff_relsz (abfd);
3e4554a2 3540#ifdef COFF_WITH_PE
ed781d5d 3541 /* Extra reloc to hold real count. */
e9168c1e 3542 if (obj_pe (abfd) && current->reloc_count >= 0xffff)
3e4554a2
DD
3543 reloc_base += bfd_coff_relsz (abfd);
3544#endif
252b5132
RH
3545 }
3546 else
3547 {
3548 current->rel_filepos = 0;
3549 }
3550 }
3551
3552 /* Write section headers to the file. */
3553 internal_f.f_nscns = 0;
3554
3555 if ((abfd->flags & EXEC_P) != 0)
6b3b007b 3556 scn_base = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd);
252b5132
RH
3557 else
3558 {
6b3b007b 3559 scn_base = bfd_coff_filhsz (abfd);
252b5132 3560#ifdef RS6000COFF_C
dc810e39 3561#ifndef XCOFF64
252b5132 3562 if (xcoff_data (abfd)->full_aouthdr)
6b3b007b 3563 scn_base += bfd_coff_aoutsz (abfd);
252b5132
RH
3564 else
3565 scn_base += SMALL_AOUTSZ;
dc810e39 3566#endif
252b5132
RH
3567#endif
3568 }
3569
3570 if (bfd_seek (abfd, scn_base, SEEK_SET) != 0)
b34976b6 3571 return FALSE;
252b5132 3572
b34976b6 3573 long_section_names = FALSE;
252b5132
RH
3574 for (current = abfd->sections;
3575 current != NULL;
3576 current = current->next)
3577 {
3578 struct internal_scnhdr section;
b34976b6 3579 bfd_boolean is_reloc_section = FALSE;
252b5132
RH
3580
3581#ifdef COFF_IMAGE_WITH_PE
3582 if (strcmp (current->name, ".reloc") == 0)
3583 {
b34976b6
AM
3584 is_reloc_section = TRUE;
3585 hasrelocs = TRUE;
252b5132
RH
3586 pe_data (abfd)->has_reloc_section = 1;
3587 }
3588#endif
3589
252b5132
RH
3590 internal_f.f_nscns++;
3591
3592 strncpy (section.s_name, current->name, SCNNMLEN);
3593
3594#ifdef COFF_LONG_SECTION_NAMES
3595 /* Handle long section names as in PE. This must be compatible
00692651 3596 with the code in coff_write_symbols and _bfd_coff_final_link. */
252b5132
RH
3597 {
3598 size_t len;
3599
3600 len = strlen (current->name);
3601 if (len > SCNNMLEN)
3602 {
3603 memset (section.s_name, 0, SCNNMLEN);
3604 sprintf (section.s_name, "/%lu", (unsigned long) string_size);
3605 string_size += len + 1;
b34976b6 3606 long_section_names = TRUE;
252b5132
RH
3607 }
3608 }
3609#endif
3610
3611#ifdef _LIB
3612 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3613 Ian Taylor <ian@cygnus.com>. */
3614 if (strcmp (current->name, _LIB) == 0)
3615 section.s_vaddr = 0;
3616 else
3617#endif
3618 section.s_vaddr = current->vma;
3619 section.s_paddr = current->lma;
3620 section.s_size = current->_raw_size;
b9af77f5 3621#ifdef coff_get_section_load_page
e60b52c6 3622 section.s_page = coff_get_section_load_page (current);
b9af77f5 3623#endif
252b5132
RH
3624
3625#ifdef COFF_WITH_PE
3626 section.s_paddr = 0;
3627#endif
3628#ifdef COFF_IMAGE_WITH_PE
3629 /* Reminder: s_paddr holds the virtual size of the section. */
3630 if (coff_section_data (abfd, current) != NULL
3631 && pei_section_data (abfd, current) != NULL)
3632 section.s_paddr = pei_section_data (abfd, current)->virt_size;
3633 else
3634 section.s_paddr = 0;
3635#endif
3636
ed781d5d
NC
3637 /* If this section has no size or is unloadable then the scnptr
3638 will be 0 too. */
252b5132
RH
3639 if (current->_raw_size == 0 ||
3640 (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
ed781d5d 3641 section.s_scnptr = 0;
252b5132 3642 else
ed781d5d
NC
3643 section.s_scnptr = current->filepos;
3644
252b5132
RH
3645 section.s_relptr = current->rel_filepos;
3646 section.s_lnnoptr = current->line_filepos;
3647 section.s_nreloc = current->reloc_count;
3648 section.s_nlnno = current->lineno_count;
79207490
ILT
3649#ifndef COFF_IMAGE_WITH_PE
3650 /* In PEI, relocs come in the .reloc section. */
252b5132 3651 if (current->reloc_count != 0)
b34976b6 3652 hasrelocs = TRUE;
79207490 3653#endif
252b5132 3654 if (current->lineno_count != 0)
b34976b6 3655 haslinno = TRUE;
4cfec37b
ILT
3656 if ((current->flags & SEC_DEBUGGING) != 0
3657 && ! is_reloc_section)
b34976b6 3658 hasdebug = TRUE;
252b5132 3659
60bcf0fa 3660#ifdef RS6000COFF_C
7f6d05e8 3661#ifndef XCOFF64
252b5132
RH
3662 /* Indicate the use of an XCOFF overflow section header. */
3663 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3664 {
3665 section.s_nreloc = 0xffff;
3666 section.s_nlnno = 0xffff;
3667 }
7f6d05e8 3668#endif
252b5132
RH
3669#endif
3670
3671 section.s_flags = sec_to_styp_flags (current->name, current->flags);
3672
3673 if (!strcmp (current->name, _TEXT))
ed781d5d 3674 text_sec = current;
252b5132 3675 else if (!strcmp (current->name, _DATA))
ed781d5d 3676 data_sec = current;
252b5132 3677 else if (!strcmp (current->name, _BSS))
ed781d5d 3678 bss_sec = current;
252b5132
RH
3679
3680#ifdef I960
3681 section.s_align = (current->alignment_power
3682 ? 1 << current->alignment_power
3683 : 0);
81635ce4 3684#endif
e60b52c6 3685#ifdef TIC80COFF
ed781d5d 3686 /* TI COFF puts the alignment power in bits 8-11 of the flags. */
252b5132
RH
3687 section.s_flags |= (current->alignment_power & 0xF) << 8;
3688#endif
81635ce4
TW
3689#ifdef COFF_ENCODE_ALIGNMENT
3690 COFF_ENCODE_ALIGNMENT(section, current->alignment_power);
252b5132
RH
3691#endif
3692
3693#ifdef COFF_IMAGE_WITH_PE
00692651
ILT
3694 /* Suppress output of the sections if they are null. ld
3695 includes the bss and data sections even if there is no size
3696 assigned to them. NT loader doesn't like it if these section
3697 headers are included if the sections themselves are not
3698 needed. See also coff_compute_section_file_positions. */
252b5132
RH
3699 if (section.s_size == 0)
3700 internal_f.f_nscns--;
3701 else
3702#endif
3703 {
3704 SCNHDR buff;
dc810e39
AM
3705 bfd_size_type amt = bfd_coff_scnhsz (abfd);
3706
252b5132 3707 if (coff_swap_scnhdr_out (abfd, &section, &buff) == 0
dc810e39 3708 || bfd_bwrite ((PTR) &buff, amt, abfd) != amt)
b34976b6 3709 return FALSE;
252b5132
RH
3710 }
3711
3712#ifdef COFF_WITH_PE
3713 /* PE stores COMDAT section information in the symbol table. If
3714 this section is supposed to have some COMDAT info, track down
3715 the symbol in the symbol table and modify it. */
3716 if ((current->flags & SEC_LINK_ONCE) != 0)
3717 {
3718 unsigned int i, count;
3719 asymbol **psym;
3720 coff_symbol_type *csym = NULL;
3721 asymbol **psymsec;
3722
3723 psymsec = NULL;
3724 count = bfd_get_symcount (abfd);
3725 for (i = 0, psym = abfd->outsymbols; i < count; i++, psym++)
3726 {
3727 if ((*psym)->section != current)
3728 continue;
3729
3730 /* Remember the location of the first symbol in this
3731 section. */
3732 if (psymsec == NULL)
3733 psymsec = psym;
3734
3735 /* See if this is the section symbol. */
3736 if (strcmp ((*psym)->name, current->name) == 0)
3737 {
3738 csym = coff_symbol_from (abfd, *psym);
3739 if (csym == NULL
3740 || csym->native == NULL
3741 || csym->native->u.syment.n_numaux < 1
3742 || csym->native->u.syment.n_sclass != C_STAT
3743 || csym->native->u.syment.n_type != T_NULL)
3744 continue;
3745
3746 /* Here *PSYM is the section symbol for CURRENT. */
3747
3748 break;
3749 }
3750 }
3751
3752 /* Did we find it?
3753 Note that we might not if we're converting the file from
3754 some other object file format. */
3755 if (i < count)
3756 {
3757 combined_entry_type *aux;
3758
3759 /* We don't touch the x_checksum field. The
3760 x_associated field is not currently supported. */
3761
3762 aux = csym->native + 1;
3763 switch (current->flags & SEC_LINK_DUPLICATES)
3764 {
3765 case SEC_LINK_DUPLICATES_DISCARD:
3766 aux->u.auxent.x_scn.x_comdat = IMAGE_COMDAT_SELECT_ANY;
3767 break;
3768
3769 case SEC_LINK_DUPLICATES_ONE_ONLY:
3770 aux->u.auxent.x_scn.x_comdat =
3771 IMAGE_COMDAT_SELECT_NODUPLICATES;
3772 break;
3773
3774 case SEC_LINK_DUPLICATES_SAME_SIZE:
3775 aux->u.auxent.x_scn.x_comdat =
3776 IMAGE_COMDAT_SELECT_SAME_SIZE;
3777 break;
3778
3779 case SEC_LINK_DUPLICATES_SAME_CONTENTS:
3780 aux->u.auxent.x_scn.x_comdat =
3781 IMAGE_COMDAT_SELECT_EXACT_MATCH;
3782 break;
3783 }
3784
3785 /* The COMDAT symbol must be the first symbol from this
3786 section in the symbol table. In order to make this
3787 work, we move the COMDAT symbol before the first
3788 symbol we found in the search above. It's OK to
3789 rearrange the symbol table at this point, because
3790 coff_renumber_symbols is going to rearrange it
3791 further and fix up all the aux entries. */
3792 if (psym != psymsec)
3793 {
3794 asymbol *hold;
3795 asymbol **pcopy;
3796
3797 hold = *psym;
3798 for (pcopy = psym; pcopy > psymsec; pcopy--)
3799 pcopy[0] = pcopy[-1];
3800 *psymsec = hold;
3801 }
3802 }
3803 }
3804#endif /* COFF_WITH_PE */
3805 }
3806
3807#ifdef RS6000COFF_C
dc810e39 3808#ifndef XCOFF64
252b5132
RH
3809 /* XCOFF handles overflows in the reloc and line number count fields
3810 by creating a new section header to hold the correct values. */
3811 for (current = abfd->sections; current != NULL; current = current->next)
3812 {
3813 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3814 {
3815 struct internal_scnhdr scnhdr;
3816 SCNHDR buff;
dc810e39 3817 bfd_size_type amt;
252b5132
RH
3818
3819 internal_f.f_nscns++;
3820 strncpy (&(scnhdr.s_name[0]), current->name, 8);
3821 scnhdr.s_paddr = current->reloc_count;
3822 scnhdr.s_vaddr = current->lineno_count;
3823 scnhdr.s_size = 0;
3824 scnhdr.s_scnptr = 0;
3825 scnhdr.s_relptr = current->rel_filepos;
3826 scnhdr.s_lnnoptr = current->line_filepos;
3827 scnhdr.s_nreloc = current->target_index;
3828 scnhdr.s_nlnno = current->target_index;
3829 scnhdr.s_flags = STYP_OVRFLO;
dc810e39 3830 amt = bfd_coff_scnhsz (abfd);
252b5132 3831 if (coff_swap_scnhdr_out (abfd, &scnhdr, &buff) == 0
dc810e39 3832 || bfd_bwrite ((PTR) &buff, amt, abfd) != amt)
b34976b6 3833 return FALSE;
252b5132
RH
3834 }
3835 }
beb1bf64 3836#endif
252b5132
RH
3837#endif
3838
e60b52c6 3839 /* OK, now set up the filehdr... */
252b5132
RH
3840
3841 /* Don't include the internal abs section in the section count */
3842
ed781d5d 3843 /* We will NOT put a fucking timestamp in the header here. Every time you
252b5132
RH
3844 put it back, I will come in and take it out again. I'm sorry. This
3845 field does not belong here. We fill it with a 0 so it compares the
ed781d5d 3846 same but is not a reasonable time. -- gnu@cygnus.com */
252b5132 3847 internal_f.f_timdat = 0;
252b5132
RH
3848 internal_f.f_flags = 0;
3849
3850 if (abfd->flags & EXEC_P)
6b3b007b 3851 internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
252b5132
RH
3852 else
3853 {
3854 internal_f.f_opthdr = 0;
3855#ifdef RS6000COFF_C
dc810e39 3856#ifndef XCOFF64
252b5132 3857 if (xcoff_data (abfd)->full_aouthdr)
6b3b007b 3858 internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
252b5132
RH
3859 else
3860 internal_f.f_opthdr = SMALL_AOUTSZ;
dc810e39 3861#endif
252b5132
RH
3862#endif
3863 }
3864
3865 if (!hasrelocs)
3866 internal_f.f_flags |= F_RELFLG;
3867 if (!haslinno)
3868 internal_f.f_flags |= F_LNNO;
3869 if (abfd->flags & EXEC_P)
3870 internal_f.f_flags |= F_EXEC;
4cfec37b
ILT
3871#ifdef COFF_IMAGE_WITH_PE
3872 if (! hasdebug)
3873 internal_f.f_flags |= IMAGE_FILE_DEBUG_STRIPPED;
3874#endif
252b5132 3875
8a1ad8e7 3876#ifndef COFF_WITH_PE
252b5132
RH
3877 if (bfd_little_endian (abfd))
3878 internal_f.f_flags |= F_AR32WR;
3879 else
3880 internal_f.f_flags |= F_AR32W;
8a1ad8e7 3881#endif
252b5132 3882
81635ce4 3883#ifdef TI_TARGET_ID
ed781d5d
NC
3884 /* Target id is used in TI COFF v1 and later; COFF0 won't use this field,
3885 but it doesn't hurt to set it internally. */
81635ce4
TW
3886 internal_f.f_target_id = TI_TARGET_ID;
3887#endif
252b5132
RH
3888#ifdef TIC80_TARGET_ID
3889 internal_f.f_target_id = TIC80_TARGET_ID;
3890#endif
3891
ed781d5d
NC
3892 /* FIXME, should do something about the other byte orders and
3893 architectures. */
252b5132
RH
3894
3895#ifdef RS6000COFF_C
3896 if ((abfd->flags & DYNAMIC) != 0)
3897 internal_f.f_flags |= F_SHROBJ;
3898 if (bfd_get_section_by_name (abfd, _LOADER) != NULL)
3899 internal_f.f_flags |= F_DYNLOAD;
3900#endif
3901
3902 memset (&internal_a, 0, sizeof internal_a);
3903
ed781d5d 3904 /* Set up architecture-dependent stuff. */
252b5132
RH
3905 {
3906 unsigned int magic = 0;
3907 unsigned short flags = 0;
ed781d5d 3908
252b5132
RH
3909 coff_set_flags (abfd, &magic, &flags);
3910 internal_f.f_magic = magic;
3911 internal_f.f_flags |= flags;
e60b52c6 3912 /* ...and the "opt"hdr... */
252b5132
RH
3913
3914#ifdef A29K
3915#ifdef ULTRA3 /* NYU's machine */
3916 /* FIXME: This is a bogus check. I really want to see if there
ed781d5d
NC
3917 is a .shbss or a .shdata section, if so then set the magic
3918 number to indicate a shared data executable. */
252b5132 3919 if (internal_f.f_nscns >= 7)
ed781d5d 3920 internal_a.magic = SHMAGIC; /* Shared magic. */
252b5132
RH
3921 else
3922#endif /* ULTRA3 */
ed781d5d 3923 internal_a.magic = NMAGIC; /* Assume separate i/d. */
252b5132
RH
3924#define __A_MAGIC_SET__
3925#endif /* A29K */
81635ce4
TW
3926#ifdef TICOFF_AOUT_MAGIC
3927 internal_a.magic = TICOFF_AOUT_MAGIC;
3928#define __A_MAGIC_SET__
3929#endif
252b5132
RH
3930#ifdef TIC80COFF
3931 internal_a.magic = TIC80_ARCH_MAGIC;
3932#define __A_MAGIC_SET__
3933#endif /* TIC80 */
3934#ifdef I860
3935 /* FIXME: What are the a.out magic numbers for the i860? */
3936 internal_a.magic = 0;
3937#define __A_MAGIC_SET__
3938#endif /* I860 */
3939#ifdef I960
3940 internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC);
3941#define __A_MAGIC_SET__
3942#endif /* I960 */
3943#if M88
3944#define __A_MAGIC_SET__
3945 internal_a.magic = PAGEMAGICBCS;
3946#endif /* M88 */
3947
3948#if APOLLO_M68
3949#define __A_MAGIC_SET__
3950 internal_a.magic = APOLLO_COFF_VERSION_NUMBER;
3951#endif
3952
3953#if defined(M68) || defined(WE32K) || defined(M68K)
3954#define __A_MAGIC_SET__
3955#if defined(LYNXOS)
3956 internal_a.magic = LYNXCOFFMAGIC;
3957#else
3958#if defined(TARG_AUX)
3959 internal_a.magic = (abfd->flags & D_PAGED ? PAGEMAGICPEXECPAGED :
3960 abfd->flags & WP_TEXT ? PAGEMAGICPEXECSWAPPED :
3961 PAGEMAGICEXECSWAPPED);
3962#else
3963#if defined (PAGEMAGICPEXECPAGED)
3964 internal_a.magic = PAGEMAGICPEXECPAGED;
3965#endif
3966#endif /* TARG_AUX */
3967#endif /* LYNXOS */
3968#endif /* M68 || WE32K || M68K */
3969
3970#if defined(ARM)
3971#define __A_MAGIC_SET__
3972 internal_a.magic = ZMAGIC;
e60b52c6 3973#endif
252b5132
RH
3974
3975#if defined(PPC_PE)
3976#define __A_MAGIC_SET__
3977 internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
3978#endif
3979
3980#if defined MCORE_PE
3981#define __A_MAGIC_SET__
3982 internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
e60b52c6 3983#endif
252b5132
RH
3984
3985#if defined(I386)
3986#define __A_MAGIC_SET__
3987#if defined(LYNXOS)
3988 internal_a.magic = LYNXCOFFMAGIC;
3989#else /* LYNXOS */
3990 internal_a.magic = ZMAGIC;
3991#endif /* LYNXOS */
3992#endif /* I386 */
3993
fac41780
JW
3994#if defined(IA64)
3995#define __A_MAGIC_SET__
3996 internal_a.magic = ZMAGIC;
3997#endif /* IA64 */
3998
252b5132
RH
3999#if defined(SPARC)
4000#define __A_MAGIC_SET__
4001#if defined(LYNXOS)
4002 internal_a.magic = LYNXCOFFMAGIC;
4003#endif /* LYNXOS */
4004#endif /* SPARC */
4005
4006#ifdef RS6000COFF_C
4007#define __A_MAGIC_SET__
4008 internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC :
4009 (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC :
4010 RS6K_AOUTHDR_OMAGIC;
4011#endif
4012
17505c5c
NC
4013#if defined(SH) && defined(COFF_WITH_PE)
4014#define __A_MAGIC_SET__
4015 internal_a.magic = SH_PE_MAGIC;
4016#endif
4017
4018#if defined(MIPS) && defined(COFF_WITH_PE)
4019#define __A_MAGIC_SET__
4020 internal_a.magic = MIPS_PE_MAGIC;
4021#endif
4022
3b16e843
NC
4023#ifdef OR32
4024#define __A_MAGIC_SET__
4025 internal_a.magic = NMAGIC; /* Assume separate i/d. */
4026#endif
4027
252b5132
RH
4028#ifndef __A_MAGIC_SET__
4029#include "Your aouthdr magic number is not being set!"
4030#else
4031#undef __A_MAGIC_SET__
4032#endif
4033 }
4034
4035 /* FIXME: Does anybody ever set this to another value? */
4036 internal_a.vstamp = 0;
4037
ed781d5d 4038 /* Now should write relocs, strings, syms. */
252b5132
RH
4039 obj_sym_filepos (abfd) = sym_base;
4040
4041 if (bfd_get_symcount (abfd) != 0)
4042 {
4043 int firstundef;
4044#if 0
4045 if (!coff_add_missing_symbols (abfd))
b34976b6 4046 return FALSE;
252b5132
RH
4047#endif
4048 if (!coff_renumber_symbols (abfd, &firstundef))
b34976b6 4049 return FALSE;
252b5132
RH
4050 coff_mangle_symbols (abfd);
4051 if (! coff_write_symbols (abfd))
b34976b6 4052 return FALSE;
252b5132 4053 if (! coff_write_linenumbers (abfd))
b34976b6 4054 return FALSE;
252b5132 4055 if (! coff_write_relocs (abfd, firstundef))
b34976b6 4056 return FALSE;
252b5132
RH
4057 }
4058#ifdef COFF_LONG_SECTION_NAMES
d71f672e 4059 else if (long_section_names && ! obj_coff_strings_written (abfd))
252b5132
RH
4060 {
4061 /* If we have long section names we have to write out the string
4062 table even if there are no symbols. */
4063 if (! coff_write_symbols (abfd))
b34976b6 4064 return FALSE;
252b5132
RH
4065 }
4066#endif
4067#ifdef COFF_IMAGE_WITH_PE
4068#ifdef PPC_PE
4069 else if ((abfd->flags & EXEC_P) != 0)
4070 {
4071 bfd_byte b;
4072
4073 /* PowerPC PE appears to require that all executable files be
4074 rounded up to the page size. */
4075 b = 0;
4076 if (bfd_seek (abfd,
dc810e39 4077 (file_ptr) BFD_ALIGN (sym_base, COFF_PAGE_SIZE) - 1,
252b5132 4078 SEEK_SET) != 0
dc810e39 4079 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
b34976b6 4080 return FALSE;
252b5132
RH
4081 }
4082#endif
4083#endif
4084
4085 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
4086 backend linker, and obj_raw_syment_count is not valid until after
4087 coff_write_symbols is called. */
4088 if (obj_raw_syment_count (abfd) != 0)
4089 {
4090 internal_f.f_symptr = sym_base;
4091#ifdef RS6000COFF_C
4092 /* AIX appears to require that F_RELFLG not be set if there are
4093 local symbols but no relocations. */
4094 internal_f.f_flags &=~ F_RELFLG;
4095#endif
4096 }
4097 else
4098 {
4099 if (long_section_names)
4100 internal_f.f_symptr = sym_base;
4101 else
4102 internal_f.f_symptr = 0;
4103 internal_f.f_flags |= F_LSYMS;
4104 }
4105
4106 if (text_sec)
4107 {
4108 internal_a.tsize = bfd_get_section_size_before_reloc (text_sec);
4109 internal_a.text_start = internal_a.tsize ? text_sec->vma : 0;
4110 }
4111 if (data_sec)
4112 {
4113 internal_a.dsize = bfd_get_section_size_before_reloc (data_sec);
4114 internal_a.data_start = internal_a.dsize ? data_sec->vma : 0;
4115 }
4116 if (bss_sec)
4117 {
4118 internal_a.bsize = bfd_get_section_size_before_reloc (bss_sec);
4119 if (internal_a.bsize && bss_sec->vma < internal_a.data_start)
4120 internal_a.data_start = bss_sec->vma;
4121 }
4122
4123 internal_a.entry = bfd_get_start_address (abfd);
4124 internal_f.f_nsyms = obj_raw_syment_count (abfd);
4125
4126#ifdef RS6000COFF_C
4127 if (xcoff_data (abfd)->full_aouthdr)
4128 {
4129 bfd_vma toc;
4130 asection *loader_sec;
4131
4132 internal_a.vstamp = 1;
4133
4134 internal_a.o_snentry = xcoff_data (abfd)->snentry;
4135 if (internal_a.o_snentry == 0)
4136 internal_a.entry = (bfd_vma) -1;
4137
4138 if (text_sec != NULL)
4139 {
4140 internal_a.o_sntext = text_sec->target_index;
4141 internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec);
4142 }
4143 else
4144 {
4145 internal_a.o_sntext = 0;
4146 internal_a.o_algntext = 0;
4147 }
4148 if (data_sec != NULL)
4149 {
4150 internal_a.o_sndata = data_sec->target_index;
4151 internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec);
4152 }
4153 else
4154 {
4155 internal_a.o_sndata = 0;
4156 internal_a.o_algndata = 0;
4157 }
4158 loader_sec = bfd_get_section_by_name (abfd, ".loader");
4159 if (loader_sec != NULL)
4160 internal_a.o_snloader = loader_sec->target_index;
4161 else
4162 internal_a.o_snloader = 0;
4163 if (bss_sec != NULL)
4164 internal_a.o_snbss = bss_sec->target_index;
4165 else
4166 internal_a.o_snbss = 0;
4167
4168 toc = xcoff_data (abfd)->toc;
4169 internal_a.o_toc = toc;
4170 internal_a.o_sntoc = xcoff_data (abfd)->sntoc;
4171
4172 internal_a.o_modtype = xcoff_data (abfd)->modtype;
4173 if (xcoff_data (abfd)->cputype != -1)
4174 internal_a.o_cputype = xcoff_data (abfd)->cputype;
4175 else
4176 {
4177 switch (bfd_get_arch (abfd))
4178 {
4179 case bfd_arch_rs6000:
4180 internal_a.o_cputype = 4;
4181 break;
4182 case bfd_arch_powerpc:
250d94fd 4183 if (bfd_get_mach (abfd) == bfd_mach_ppc)
252b5132
RH
4184 internal_a.o_cputype = 3;
4185 else
4186 internal_a.o_cputype = 1;
4187 break;
4188 default:
4189 abort ();
4190 }
4191 }
4192 internal_a.o_maxstack = xcoff_data (abfd)->maxstack;
4193 internal_a.o_maxdata = xcoff_data (abfd)->maxdata;
4194 }
4195#endif
4196
4197 /* now write them */
4198 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
b34976b6 4199 return FALSE;
e60b52c6 4200
252b5132 4201 {
b5f303f0 4202 char * buff;
dc810e39 4203 bfd_size_type amount = bfd_coff_filhsz (abfd);
e60b52c6 4204
dc810e39 4205 buff = bfd_malloc (amount);
e60b52c6 4206 if (buff == NULL)
b34976b6 4207 return FALSE;
e60b52c6 4208
dc810e39
AM
4209 bfd_coff_swap_filehdr_out (abfd, (PTR) &internal_f, (PTR) buff);
4210 amount = bfd_bwrite ((PTR) buff, amount, abfd);
e60b52c6 4211
2fca4467 4212 free (buff);
e60b52c6 4213
b5f303f0 4214 if (amount != bfd_coff_filhsz (abfd))
b34976b6 4215 return FALSE;
252b5132 4216 }
e60b52c6 4217
252b5132
RH
4218 if (abfd->flags & EXEC_P)
4219 {
e60b52c6 4220 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
ed781d5d 4221 include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */
b5f303f0 4222 char * buff;
dc810e39 4223 bfd_size_type amount = bfd_coff_aoutsz (abfd);
b5f303f0 4224
dc810e39 4225 buff = bfd_malloc (amount);
e60b52c6 4226 if (buff == NULL)
b34976b6 4227 return FALSE;
e60b52c6 4228
dc810e39
AM
4229 coff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) buff);
4230 amount = bfd_bwrite ((PTR) buff, amount, abfd);
e60b52c6 4231
2fca4467 4232 free (buff);
e60b52c6 4233
b5f303f0 4234 if (amount != bfd_coff_aoutsz (abfd))
b34976b6 4235 return FALSE;
05793179
NC
4236
4237#ifdef COFF_IMAGE_WITH_PE
4238 if (! coff_apply_checksum (abfd))
b34976b6 4239 return FALSE;
05793179 4240#endif
252b5132
RH
4241 }
4242#ifdef RS6000COFF_C
4243 else
4244 {
4245 AOUTHDR buff;
4246 size_t size;
4247
4248 /* XCOFF seems to always write at least a small a.out header. */
4249 coff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) &buff);
4250 if (xcoff_data (abfd)->full_aouthdr)
6b3b007b 4251 size = bfd_coff_aoutsz (abfd);
252b5132
RH
4252 else
4253 size = SMALL_AOUTSZ;
dc810e39 4254 if (bfd_bwrite ((PTR) &buff, (bfd_size_type) size, abfd) != size)
b34976b6 4255 return FALSE;
252b5132
RH
4256 }
4257#endif
4258
b34976b6 4259 return TRUE;
252b5132
RH
4260}
4261
b34976b6 4262static bfd_boolean
252b5132
RH
4263coff_set_section_contents (abfd, section, location, offset, count)
4264 bfd * abfd;
4265 sec_ptr section;
4266 PTR location;
4267 file_ptr offset;
4268 bfd_size_type count;
4269{
ed781d5d 4270 if (! abfd->output_has_begun) /* Set by bfd.c handler. */
252b5132
RH
4271 {
4272 if (! coff_compute_section_file_positions (abfd))
b34976b6 4273 return FALSE;
252b5132
RH
4274 }
4275
4276#if defined(_LIB) && !defined(TARG_AUX)
4277
4278 /* The physical address field of a .lib section is used to hold the
4279 number of shared libraries in the section. This code counts the
4280 number of sections being written, and increments the lma field
4281 with the number.
4282
4283 I have found no documentation on the contents of this section.
4284 Experimentation indicates that the section contains zero or more
4285 records, each of which has the following structure:
4286
4287 - a (four byte) word holding the length of this record, in words,
4288 - a word that always seems to be set to "2",
4289 - the path to a shared library, null-terminated and then padded
4290 to a whole word boundary.
4291
4292 bfd_assert calls have been added to alert if an attempt is made
4293 to write a section which doesn't follow these assumptions. The
4294 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
4295 <robertl@arnet.com> (Thanks!).
e60b52c6 4296
ed781d5d 4297 Gvran Uddeborg <gvran@uddeborg.pp.se>. */
252b5132
RH
4298
4299 if (strcmp (section->name, _LIB) == 0)
4300 {
4301 bfd_byte *rec, *recend;
4302
4303 rec = (bfd_byte *) location;
4304 recend = rec + count;
4305 while (rec < recend)
4306 {
4307 ++section->lma;
4308 rec += bfd_get_32 (abfd, rec) * 4;
4309 }
4310
4311 BFD_ASSERT (rec == recend);
4312 }
4313
4314#endif
4315
4316 /* Don't write out bss sections - one way to do this is to
e60b52c6 4317 see if the filepos has not been set. */
252b5132 4318 if (section->filepos == 0)
b34976b6 4319 return TRUE;
252b5132 4320
dc810e39 4321 if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0)
b34976b6 4322 return FALSE;
252b5132 4323
dc810e39 4324 if (count == 0)
b34976b6 4325 return TRUE;
dc810e39
AM
4326
4327 return bfd_bwrite (location, count, abfd) == count;
252b5132
RH
4328}
4329#if 0
b34976b6 4330static bfd_boolean
252b5132
RH
4331coff_close_and_cleanup (abfd)
4332 bfd *abfd;
4333{
4334 if (!bfd_read_p (abfd))
4335 switch (abfd->format)
4336 {
4337 case bfd_archive:
4338 if (!_bfd_write_archive_contents (abfd))
b34976b6 4339 return FALSE;
252b5132
RH
4340 break;
4341 case bfd_object:
4342 if (!coff_write_object_contents (abfd))
b34976b6 4343 return FALSE;
252b5132
RH
4344 break;
4345 default:
4346 bfd_set_error (bfd_error_invalid_operation);
b34976b6 4347 return FALSE;
252b5132
RH
4348 }
4349
4350 /* We depend on bfd_close to free all the memory on the objalloc. */
b34976b6 4351 return TRUE;
252b5132
RH
4352}
4353
4354#endif
4355
4356static PTR
dc810e39 4357buy_and_read (abfd, where, size)
252b5132
RH
4358 bfd *abfd;
4359 file_ptr where;
dc810e39 4360 bfd_size_type size;
252b5132
RH
4361{
4362 PTR area = (PTR) bfd_alloc (abfd, size);
4363 if (!area)
4364 return (NULL);
dc810e39
AM
4365 if (bfd_seek (abfd, where, SEEK_SET) != 0
4366 || bfd_bread (area, size, abfd) != size)
252b5132
RH
4367 return (NULL);
4368 return (area);
4369} /* buy_and_read() */
4370
4371/*
4372SUBSUBSECTION
4373 Reading linenumbers
4374
4375 Creating the linenumber table is done by reading in the entire
4376 coff linenumber table, and creating another table for internal use.
4377
4378 A coff linenumber table is structured so that each function
4379 is marked as having a line number of 0. Each line within the
4380 function is an offset from the first line in the function. The
4381 base of the line number information for the table is stored in
4382 the symbol associated with the function.
4383
00692651
ILT
4384 Note: The PE format uses line number 0 for a flag indicating a
4385 new source file.
4386
252b5132
RH
4387 The information is copied from the external to the internal
4388 table, and each symbol which marks a function is marked by
4389 pointing its...
4390
4391 How does this work ?
4392
4393*/
4394
b34976b6 4395static bfd_boolean
252b5132
RH
4396coff_slurp_line_table (abfd, asect)
4397 bfd *abfd;
4398 asection *asect;
4399{
4400 LINENO *native_lineno;
4401 alent *lineno_cache;
dc810e39 4402 bfd_size_type amt;
252b5132
RH
4403
4404 BFD_ASSERT (asect->lineno == (alent *) NULL);
4405
dc810e39
AM
4406 amt = (bfd_size_type) bfd_coff_linesz (abfd) * asect->lineno_count;
4407 native_lineno = (LINENO *) buy_and_read (abfd, asect->line_filepos, amt);
4408 amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent);
4409 lineno_cache = (alent *) bfd_alloc (abfd, amt);
252b5132 4410 if (lineno_cache == NULL)
b34976b6 4411 return FALSE;
252b5132
RH
4412 else
4413 {
4414 unsigned int counter = 0;
4415 alent *cache_ptr = lineno_cache;
4416 LINENO *src = native_lineno;
4417
4418 while (counter < asect->lineno_count)
4419 {
4420 struct internal_lineno dst;
ed781d5d 4421
7f6d05e8 4422 bfd_coff_swap_lineno_in (abfd, src, &dst);
252b5132
RH
4423 cache_ptr->line_number = dst.l_lnno;
4424
4425 if (cache_ptr->line_number == 0)
4426 {
b34976b6 4427 bfd_boolean warned;
beb1bf64 4428 bfd_signed_vma symndx;
252b5132
RH
4429 coff_symbol_type *sym;
4430
b34976b6 4431 warned = FALSE;
252b5132
RH
4432 symndx = dst.l_addr.l_symndx;
4433 if (symndx < 0
beb1bf64 4434 || (bfd_vma) symndx >= obj_raw_syment_count (abfd))
252b5132
RH
4435 {
4436 (*_bfd_error_handler)
4437 (_("%s: warning: illegal symbol index %ld in line numbers"),
8f615d07 4438 bfd_archive_filename (abfd), dst.l_addr.l_symndx);
252b5132 4439 symndx = 0;
b34976b6 4440 warned = TRUE;
252b5132
RH
4441 }
4442 /* FIXME: We should not be casting between ints and
4443 pointers like this. */
4444 sym = ((coff_symbol_type *)
4445 ((symndx + obj_raw_syments (abfd))
4446 ->u.syment._n._n_n._n_zeroes));
4447 cache_ptr->u.sym = (asymbol *) sym;
4448 if (sym->lineno != NULL && ! warned)
4449 {
4450 (*_bfd_error_handler)
4451 (_("%s: warning: duplicate line number information for `%s'"),
8f615d07 4452 bfd_archive_filename (abfd),
252b5132
RH
4453 bfd_asymbol_name (&sym->symbol));
4454 }
4455 sym->lineno = cache_ptr;
4456 }
4457 else
4458 {
4459 cache_ptr->u.offset = dst.l_addr.l_paddr
4460 - bfd_section_vma (abfd, asect);
4461 } /* If no linenumber expect a symbol index */
4462
4463 cache_ptr++;
4464 src++;
4465 counter++;
4466 }
4467 cache_ptr->line_number = 0;
4468
4469 }
4470 asect->lineno = lineno_cache;
e60b52c6 4471 /* FIXME, free native_lineno here, or use alloca or something. */
b34976b6 4472 return TRUE;
252b5132
RH
4473}
4474
00692651
ILT
4475/* Slurp in the symbol table, converting it to generic form. Note
4476 that if coff_relocate_section is defined, the linker will read
4477 symbols via coff_link_add_symbols, rather than via this routine. */
4478
b34976b6 4479static bfd_boolean
252b5132
RH
4480coff_slurp_symbol_table (abfd)
4481 bfd * abfd;
4482{
4483 combined_entry_type *native_symbols;
4484 coff_symbol_type *cached_area;
4485 unsigned int *table_ptr;
dc810e39 4486 bfd_size_type amt;
252b5132
RH
4487 unsigned int number_of_symbols = 0;
4488
4489 if (obj_symbols (abfd))
b34976b6 4490 return TRUE;
252b5132 4491
ed781d5d 4492 /* Read in the symbol table. */
252b5132 4493 if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL)
ed781d5d 4494 return FALSE;
252b5132 4495
ed781d5d 4496 /* Allocate enough room for all the symbols in cached form. */
dc810e39
AM
4497 amt = obj_raw_syment_count (abfd);
4498 amt *= sizeof (coff_symbol_type);
4499 cached_area = (coff_symbol_type *) bfd_alloc (abfd, amt);
252b5132 4500 if (cached_area == NULL)
b34976b6 4501 return FALSE;
dc810e39
AM
4502
4503 amt = obj_raw_syment_count (abfd);
4504 amt *= sizeof (unsigned int);
4505 table_ptr = (unsigned int *) bfd_alloc (abfd, amt);
252b5132
RH
4506
4507 if (table_ptr == NULL)
b34976b6 4508 return FALSE;
252b5132
RH
4509 else
4510 {
4511 coff_symbol_type *dst = cached_area;
4512 unsigned int last_native_index = obj_raw_syment_count (abfd);
4513 unsigned int this_index = 0;
ed781d5d 4514
252b5132
RH
4515 while (this_index < last_native_index)
4516 {
4517 combined_entry_type *src = native_symbols + this_index;
4518 table_ptr[this_index] = number_of_symbols;
4519 dst->symbol.the_bfd = abfd;
4520
4521 dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset);
4522 /* We use the native name field to point to the cached field. */
4523 src->u.syment._n._n_n._n_zeroes = (long) dst;
4524 dst->symbol.section = coff_section_from_bfd_index (abfd,
4525 src->u.syment.n_scnum);
4526 dst->symbol.flags = 0;
b34976b6 4527 dst->done_lineno = FALSE;
252b5132
RH
4528
4529 switch (src->u.syment.n_sclass)
4530 {
4531#ifdef I960
4532 case C_LEAFEXT:
4533#if 0
4534 dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma;
4535 dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
4536 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4537#endif
ed781d5d 4538 /* Fall through to next case. */
252b5132
RH
4539#endif
4540
4541 case C_EXT:
4542 case C_WEAKEXT:
4543#if defined ARM
4544 case C_THUMBEXT:
4545 case C_THUMBEXTFUNC:
4546#endif
4547#ifdef RS6000COFF_C
4548 case C_HIDEXT:
4549#endif
4550#ifdef C_SYSTEM
ed781d5d 4551 case C_SYSTEM: /* System Wide variable. */
252b5132
RH
4552#endif
4553#ifdef COFF_WITH_PE
ed781d5d 4554 /* In PE, 0x68 (104) denotes a section symbol. */
252b5132 4555 case C_SECTION:
5d54c628 4556 /* In PE, 0x69 (105) denotes a weak external symbol. */
252b5132
RH
4557 case C_NT_WEAK:
4558#endif
5d54c628 4559 switch (coff_classify_symbol (abfd, &src->u.syment))
252b5132 4560 {
5d54c628 4561 case COFF_SYMBOL_GLOBAL:
252b5132 4562 dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
252b5132
RH
4563#if defined COFF_WITH_PE
4564 /* PE sets the symbol to a value relative to the
4565 start of the section. */
4566 dst->symbol.value = src->u.syment.n_value;
4567#else
4568 dst->symbol.value = (src->u.syment.n_value
4569 - dst->symbol.section->vma);
4570#endif
252b5132
RH
4571 if (ISFCN ((src->u.syment.n_type)))
4572 {
4573 /* A function ext does not go at the end of a
4574 file. */
4575 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4576 }
5d54c628
ILT
4577 break;
4578
4579 case COFF_SYMBOL_COMMON:
4580 dst->symbol.section = bfd_com_section_ptr;
4581 dst->symbol.value = src->u.syment.n_value;
4582 break;
4583
4584 case COFF_SYMBOL_UNDEFINED:
4585 dst->symbol.section = bfd_und_section_ptr;
4586 dst->symbol.value = 0;
e60b52c6 4587 break;
5d54c628
ILT
4588
4589 case COFF_SYMBOL_PE_SECTION:
4590 dst->symbol.flags |= BSF_EXPORT | BSF_SECTION_SYM;
4591 dst->symbol.value = 0;
4592 break;
4593
4594 case COFF_SYMBOL_LOCAL:
4595 dst->symbol.flags = BSF_LOCAL;
4596#if defined COFF_WITH_PE
4597 /* PE sets the symbol to a value relative to the
4598 start of the section. */
4599 dst->symbol.value = src->u.syment.n_value;
4600#else
4601 dst->symbol.value = (src->u.syment.n_value
4602 - dst->symbol.section->vma);
4603#endif
4604 if (ISFCN ((src->u.syment.n_type)))
4605 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4606 break;
252b5132
RH
4607 }
4608
4609#ifdef RS6000COFF_C
252b5132
RH
4610 /* A symbol with a csect entry should not go at the end. */
4611 if (src->u.syment.n_numaux > 0)
4612 dst->symbol.flags |= BSF_NOT_AT_END;
4613#endif
4614
4615#ifdef COFF_WITH_PE
4616 if (src->u.syment.n_sclass == C_NT_WEAK)
a181be0a
NC
4617 dst->symbol.flags |= BSF_WEAK;
4618
ec0ef80e
DD
4619 if (src->u.syment.n_sclass == C_SECTION
4620 && src->u.syment.n_scnum > 0)
eb1e0e80 4621 dst->symbol.flags = BSF_LOCAL;
252b5132 4622#endif
252b5132 4623 if (src->u.syment.n_sclass == C_WEAKEXT)
a181be0a 4624 dst->symbol.flags |= BSF_WEAK;
252b5132
RH
4625
4626 break;
4627
ed781d5d 4628 case C_STAT: /* Static. */
252b5132 4629#ifdef I960
ed781d5d 4630 case C_LEAFSTAT: /* Static leaf procedure. */
252b5132 4631#endif
e60b52c6 4632#if defined ARM
ed781d5d
NC
4633 case C_THUMBSTAT: /* Thumb static. */
4634 case C_THUMBLABEL: /* Thumb label. */
4635 case C_THUMBSTATFUNC:/* Thumb static function. */
252b5132 4636#endif
ed781d5d 4637 case C_LABEL: /* Label. */
00692651 4638 if (src->u.syment.n_scnum == N_DEBUG)
252b5132
RH
4639 dst->symbol.flags = BSF_DEBUGGING;
4640 else
4641 dst->symbol.flags = BSF_LOCAL;
4642
4643 /* Base the value as an index from the base of the
4644 section, if there is one. */
4645 if (dst->symbol.section)
4646 {
4647#if defined COFF_WITH_PE
4648 /* PE sets the symbol to a value relative to the
4649 start of the section. */
4650 dst->symbol.value = src->u.syment.n_value;
4651#else
4652 dst->symbol.value = (src->u.syment.n_value
4653 - dst->symbol.section->vma);
4654#endif
4655 }
4656 else
4657 dst->symbol.value = src->u.syment.n_value;
4658 break;
4659
ed781d5d
NC
4660 case C_MOS: /* Member of structure. */
4661 case C_EOS: /* End of structure. */
4662#ifdef NOTDEF /* C_AUTOARG has the same value. */
252b5132 4663#ifdef C_GLBLREG
ed781d5d 4664 case C_GLBLREG: /* A29k-specific storage class. */
252b5132
RH
4665#endif
4666#endif
ed781d5d
NC
4667 case C_REGPARM: /* Register parameter. */
4668 case C_REG: /* register variable. */
4669 /* C_AUTOARG conflictes with TI COFF C_UEXT. */
81635ce4 4670#if !defined (TIC80COFF) && !defined (TICOFF)
252b5132 4671#ifdef C_AUTOARG
ed781d5d 4672 case C_AUTOARG: /* 960-specific storage class. */
252b5132
RH
4673#endif
4674#endif
ed781d5d 4675 case C_TPDEF: /* Type definition. */
252b5132 4676 case C_ARG:
ed781d5d
NC
4677 case C_AUTO: /* Automatic variable. */
4678 case C_FIELD: /* Bit field. */
4679 case C_ENTAG: /* Enumeration tag. */
4680 case C_MOE: /* Member of enumeration. */
4681 case C_MOU: /* Member of union. */
4682 case C_UNTAG: /* Union tag. */
252b5132
RH
4683 dst->symbol.flags = BSF_DEBUGGING;
4684 dst->symbol.value = (src->u.syment.n_value);
4685 break;
4686
ed781d5d
NC
4687 case C_FILE: /* File name. */
4688 case C_STRTAG: /* Structure tag. */
252b5132
RH
4689#ifdef RS6000COFF_C
4690 case C_GSYM:
4691 case C_LSYM:
4692 case C_PSYM:
4693 case C_RSYM:
4694 case C_RPSYM:
4695 case C_STSYM:
4696 case C_BCOMM:
4697 case C_ECOMM:
4698 case C_DECL:
4699 case C_ENTRY:
4700 case C_FUN:
4701 case C_ESTAT:
4702#endif
4703 dst->symbol.flags = BSF_DEBUGGING;
4704 dst->symbol.value = (src->u.syment.n_value);
4705 break;
4706
4707#ifdef RS6000COFF_C
ed781d5d
NC
4708 case C_BINCL: /* Beginning of include file. */
4709 case C_EINCL: /* Ending of include file. */
252b5132
RH
4710 /* The value is actually a pointer into the line numbers
4711 of the file. We locate the line number entry, and
4712 set the section to the section which contains it, and
4713 the value to the index in that section. */
4714 {
4715 asection *sec;
4716
4717 dst->symbol.flags = BSF_DEBUGGING;
4718 for (sec = abfd->sections; sec != NULL; sec = sec->next)
4719 if (sec->line_filepos <= (file_ptr) src->u.syment.n_value
4720 && ((file_ptr) (sec->line_filepos
6b3b007b 4721 + sec->lineno_count * bfd_coff_linesz (abfd))
252b5132
RH
4722 > (file_ptr) src->u.syment.n_value))
4723 break;
4724 if (sec == NULL)
4725 dst->symbol.value = 0;
4726 else
4727 {
4728 dst->symbol.section = sec;
4729 dst->symbol.value = ((src->u.syment.n_value
4730 - sec->line_filepos)
6b3b007b 4731 / bfd_coff_linesz (abfd));
252b5132
RH
4732 src->fix_line = 1;
4733 }
4734 }
4735 break;
4736
4737 case C_BSTAT:
4738 dst->symbol.flags = BSF_DEBUGGING;
4739
4740 /* The value is actually a symbol index. Save a pointer
4741 to the symbol instead of the index. FIXME: This
4742 should use a union. */
4743 src->u.syment.n_value =
4744 (long) (native_symbols + src->u.syment.n_value);
4745 dst->symbol.value = src->u.syment.n_value;
4746 src->fix_value = 1;
4747 break;
4748#endif
4749
ed781d5d
NC
4750 case C_BLOCK: /* ".bb" or ".eb". */
4751 case C_FCN: /* ".bf" or ".ef" (or PE ".lf"). */
4752 case C_EFCN: /* Physical end of function. */
252b5132
RH
4753#if defined COFF_WITH_PE
4754 /* PE sets the symbol to a value relative to the start
4755 of the section. */
4756 dst->symbol.value = src->u.syment.n_value;
d510f9a6
ILT
4757 if (strcmp (dst->symbol.name, ".bf") != 0)
4758 {
4759 /* PE uses funny values for .ef and .lf; don't
4760 relocate them. */
4761 dst->symbol.flags = BSF_DEBUGGING;
4762 }
4763 else
4764 dst->symbol.flags = BSF_DEBUGGING | BSF_DEBUGGING_RELOC;
252b5132
RH
4765#else
4766 /* Base the value as an index from the base of the
4767 section. */
d510f9a6 4768 dst->symbol.flags = BSF_LOCAL;
252b5132
RH
4769 dst->symbol.value = (src->u.syment.n_value
4770 - dst->symbol.section->vma);
4771#endif
4772 break;
4773
ed781d5d 4774 case C_STATLAB: /* Static load time label. */
34cbe64e
TW
4775 dst->symbol.value = src->u.syment.n_value;
4776 dst->symbol.flags = BSF_GLOBAL;
4777 break;
4778
252b5132 4779 case C_NULL:
00692651
ILT
4780 /* PE DLLs sometimes have zeroed out symbols for some
4781 reason. Just ignore them without a warning. */
4782 if (src->u.syment.n_type == 0
4783 && src->u.syment.n_value == 0
4784 && src->u.syment.n_scnum == 0)
4785 break;
4786 /* Fall through. */
ed781d5d
NC
4787 case C_EXTDEF: /* External definition. */
4788 case C_ULABEL: /* Undefined label. */
4789 case C_USTATIC: /* Undefined static. */
252b5132
RH
4790#ifndef COFF_WITH_PE
4791 /* C_LINE in regular coff is 0x68. NT has taken over this storage
ed781d5d
NC
4792 class to represent a section symbol. */
4793 case C_LINE: /* line # reformatted as symbol table entry. */
252b5132 4794 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
ed781d5d 4795 case C_ALIAS: /* Duplicate tag. */
252b5132 4796#endif
ed781d5d 4797 /* New storage classes for TI COFF. */
81635ce4 4798#if defined(TIC80COFF) || defined(TICOFF)
ed781d5d 4799 case C_UEXT: /* Tentative external definition. */
252b5132 4800#endif
ed781d5d
NC
4801 case C_EXTLAB: /* External load time label. */
4802 case C_HIDDEN: /* Ext symbol in dmert public lib. */
252b5132
RH
4803 default:
4804 (*_bfd_error_handler)
4805 (_("%s: Unrecognized storage class %d for %s symbol `%s'"),
8f615d07 4806 bfd_archive_filename (abfd), src->u.syment.n_sclass,
252b5132
RH
4807 dst->symbol.section->name, dst->symbol.name);
4808 dst->symbol.flags = BSF_DEBUGGING;
4809 dst->symbol.value = (src->u.syment.n_value);
4810 break;
4811 }
4812
4813/* BFD_ASSERT(dst->symbol.flags != 0);*/
4814
4815 dst->native = src;
4816
4817 dst->symbol.udata.i = 0;
4818 dst->lineno = (alent *) NULL;
4819 this_index += (src->u.syment.n_numaux) + 1;
4820 dst++;
4821 number_of_symbols++;
ed781d5d
NC
4822 }
4823 }
252b5132
RH
4824
4825 obj_symbols (abfd) = cached_area;
4826 obj_raw_syments (abfd) = native_symbols;
4827
4828 bfd_get_symcount (abfd) = number_of_symbols;
4829 obj_convert (abfd) = table_ptr;
ed781d5d 4830 /* Slurp the line tables for each section too. */
252b5132
RH
4831 {
4832 asection *p;
ed781d5d 4833
252b5132
RH
4834 p = abfd->sections;
4835 while (p)
4836 {
4837 coff_slurp_line_table (abfd, p);
4838 p = p->next;
4839 }
4840 }
ed781d5d 4841
b34976b6 4842 return TRUE;
252b5132
RH
4843} /* coff_slurp_symbol_table() */
4844
5d54c628
ILT
4845/* Classify a COFF symbol. A couple of targets have globally visible
4846 symbols which are not class C_EXT, and this handles those. It also
4847 recognizes some special PE cases. */
252b5132 4848
5d54c628
ILT
4849static enum coff_symbol_classification
4850coff_classify_symbol (abfd, syment)
4851 bfd *abfd;
4852 struct internal_syment *syment;
4853{
4854 /* FIXME: This partially duplicates the switch in
4855 coff_slurp_symbol_table. */
4856 switch (syment->n_sclass)
4857 {
4858 case C_EXT:
4859 case C_WEAKEXT:
252b5132 4860#ifdef I960
5d54c628 4861 case C_LEAFEXT:
252b5132 4862#endif
5d54c628
ILT
4863#ifdef ARM
4864 case C_THUMBEXT:
4865 case C_THUMBEXTFUNC:
252b5132 4866#endif
5d54c628
ILT
4867#ifdef C_SYSTEM
4868 case C_SYSTEM:
252b5132 4869#endif
5d54c628
ILT
4870#ifdef COFF_WITH_PE
4871 case C_NT_WEAK:
4872#endif
4873 if (syment->n_scnum == 0)
4874 {
4875 if (syment->n_value == 0)
4876 return COFF_SYMBOL_UNDEFINED;
4877 else
4878 return COFF_SYMBOL_COMMON;
4879 }
4880 return COFF_SYMBOL_GLOBAL;
4881
4882 default:
4883 break;
4884 }
252b5132 4885
5d54c628
ILT
4886#ifdef COFF_WITH_PE
4887 if (syment->n_sclass == C_STAT)
4888 {
4889 if (syment->n_scnum == 0)
4890 {
4891 /* The Microsoft compiler sometimes generates these if a
4892 small static function is inlined every time it is used.
4893 The function is discarded, but the symbol table entry
4894 remains. */
4895 return COFF_SYMBOL_LOCAL;
4896 }
252b5132 4897
0717ebb7 4898#ifdef STRICT_PE_FORMAT
bd826630
ILT
4899 /* This is correct for Microsoft generated objects, but it
4900 breaks gas generated objects. */
4901
5d54c628
ILT
4902 if (syment->n_value == 0)
4903 {
4904 asection *sec;
4905 char buf[SYMNMLEN + 1];
4906
4907 sec = coff_section_from_bfd_index (abfd, syment->n_scnum);
4908 if (sec != NULL
4909 && (strcmp (bfd_get_section_name (abfd, sec),
4910 _bfd_coff_internal_syment_name (abfd, syment, buf))
4911 == 0))
4912 return COFF_SYMBOL_PE_SECTION;
4913 }
bd826630 4914#endif
252b5132 4915
5d54c628
ILT
4916 return COFF_SYMBOL_LOCAL;
4917 }
252b5132 4918
5d54c628
ILT
4919 if (syment->n_sclass == C_SECTION)
4920 {
4921 /* In some cases in a DLL generated by the Microsoft linker, the
4922 n_value field will contain garbage. FIXME: This should
4923 probably be handled by the swapping function instead. */
4924 syment->n_value = 0;
4925 if (syment->n_scnum == 0)
4926 return COFF_SYMBOL_UNDEFINED;
4927 return COFF_SYMBOL_PE_SECTION;
4928 }
4929#endif /* COFF_WITH_PE */
252b5132 4930
5d54c628 4931 /* If it is not a global symbol, we presume it is a local symbol. */
252b5132 4932
5d54c628
ILT
4933 if (syment->n_scnum == 0)
4934 {
4935 char buf[SYMNMLEN + 1];
252b5132 4936
5d54c628
ILT
4937 (*_bfd_error_handler)
4938 (_("warning: %s: local symbol `%s' has no section"),
8f615d07 4939 bfd_archive_filename (abfd),
5d54c628
ILT
4940 _bfd_coff_internal_syment_name (abfd, syment, buf));
4941 }
252b5132 4942
5d54c628
ILT
4943 return COFF_SYMBOL_LOCAL;
4944}
252b5132
RH
4945
4946/*
4947SUBSUBSECTION
4948 Reading relocations
4949
4950 Coff relocations are easily transformed into the internal BFD form
4951 (@code{arelent}).
4952
4953 Reading a coff relocation table is done in the following stages:
4954
4955 o Read the entire coff relocation table into memory.
4956
4957 o Process each relocation in turn; first swap it from the
4958 external to the internal form.
4959
4960 o Turn the symbol referenced in the relocation's symbol index
4961 into a pointer into the canonical symbol table.
4962 This table is the same as the one returned by a call to
4963 @code{bfd_canonicalize_symtab}. The back end will call that
4964 routine and save the result if a canonicalization hasn't been done.
4965
4966 o The reloc index is turned into a pointer to a howto
4967 structure, in a back end specific way. For instance, the 386
4968 and 960 use the @code{r_type} to directly produce an index
4969 into a howto table vector; the 88k subtracts a number from the
4970 @code{r_type} field and creates an addend field.
4971
252b5132
RH
4972*/
4973
4974#ifndef CALC_ADDEND
4975#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
4976 { \
4977 coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \
4978 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
4979 coffsym = (obj_symbols (abfd) \
4980 + (cache_ptr->sym_ptr_ptr - symbols)); \
4981 else if (ptr) \
4982 coffsym = coff_symbol_from (abfd, ptr); \
4983 if (coffsym != (coff_symbol_type *) NULL \
4984 && coffsym->native->u.syment.n_scnum == 0) \
4985 cache_ptr->addend = 0; \
4986 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
4987 && ptr->section != (asection *) NULL) \
4988 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
4989 else \
4990 cache_ptr->addend = 0; \
4991 }
4992#endif
4993
b34976b6 4994static bfd_boolean
252b5132
RH
4995coff_slurp_reloc_table (abfd, asect, symbols)
4996 bfd * abfd;
4997 sec_ptr asect;
4998 asymbol ** symbols;
4999{
5000 RELOC *native_relocs;
5001 arelent *reloc_cache;
5002 arelent *cache_ptr;
252b5132 5003 unsigned int idx;
dc810e39 5004 bfd_size_type amt;
252b5132
RH
5005
5006 if (asect->relocation)
b34976b6 5007 return TRUE;
252b5132 5008 if (asect->reloc_count == 0)
b34976b6 5009 return TRUE;
252b5132 5010 if (asect->flags & SEC_CONSTRUCTOR)
b34976b6 5011 return TRUE;
252b5132 5012 if (!coff_slurp_symbol_table (abfd))
b34976b6 5013 return FALSE;
dc810e39
AM
5014 amt = (bfd_size_type) bfd_coff_relsz (abfd) * asect->reloc_count;
5015 native_relocs = (RELOC *) buy_and_read (abfd, asect->rel_filepos, amt);
5016 amt = (bfd_size_type) asect->reloc_count * sizeof (arelent);
5017 reloc_cache = (arelent *) bfd_alloc (abfd, amt);
252b5132
RH
5018
5019 if (reloc_cache == NULL)
b34976b6 5020 return FALSE;
252b5132 5021
252b5132
RH
5022 for (idx = 0; idx < asect->reloc_count; idx++)
5023 {
5024 struct internal_reloc dst;
5025 struct external_reloc *src;
5026#ifndef RELOC_PROCESSING
5027 asymbol *ptr;
5028#endif
5029
5030 cache_ptr = reloc_cache + idx;
5031 src = native_relocs + idx;
5032
5033 coff_swap_reloc_in (abfd, src, &dst);
5034
5035#ifdef RELOC_PROCESSING
5036 RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect);
5037#else
5038 cache_ptr->address = dst.r_vaddr;
5039
5040 if (dst.r_symndx != -1)
5041 {
5042 if (dst.r_symndx < 0 || dst.r_symndx >= obj_conv_table_size (abfd))
5043 {
5044 (*_bfd_error_handler)
5045 (_("%s: warning: illegal symbol index %ld in relocs"),
8f615d07 5046 bfd_archive_filename (abfd), dst.r_symndx);
252b5132
RH
5047 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
5048 ptr = NULL;
5049 }
5050 else
5051 {
5052 cache_ptr->sym_ptr_ptr = (symbols
5053 + obj_convert (abfd)[dst.r_symndx]);
5054 ptr = *(cache_ptr->sym_ptr_ptr);
5055 }
5056 }
5057 else
5058 {
5059 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
5060 ptr = NULL;
5061 }
5062
5063 /* The symbols definitions that we have read in have been
5064 relocated as if their sections started at 0. But the offsets
5065 refering to the symbols in the raw data have not been
5066 modified, so we have to have a negative addend to compensate.
5067
ed781d5d 5068 Note that symbols which used to be common must be left alone. */
252b5132 5069
ed781d5d 5070 /* Calculate any reloc addend by looking at the symbol. */
252b5132
RH
5071 CALC_ADDEND (abfd, ptr, dst, cache_ptr);
5072
5073 cache_ptr->address -= asect->vma;
5074/* !! cache_ptr->section = (asection *) NULL;*/
5075
ed781d5d 5076 /* Fill in the cache_ptr->howto field from dst.r_type. */
252b5132
RH
5077 RTYPE2HOWTO (cache_ptr, &dst);
5078#endif /* RELOC_PROCESSING */
5079
5080 if (cache_ptr->howto == NULL)
5081 {
5082 (*_bfd_error_handler)
5083 (_("%s: illegal relocation type %d at address 0x%lx"),
8f615d07 5084 bfd_archive_filename (abfd), dst.r_type, (long) dst.r_vaddr);
252b5132 5085 bfd_set_error (bfd_error_bad_value);
b34976b6 5086 return FALSE;
252b5132
RH
5087 }
5088 }
5089
5090 asect->relocation = reloc_cache;
b34976b6 5091 return TRUE;
252b5132
RH
5092}
5093
5094#ifndef coff_rtype_to_howto
5095#ifdef RTYPE2HOWTO
5096
5097/* Get the howto structure for a reloc. This is only used if the file
5098 including this one defines coff_relocate_section to be
5099 _bfd_coff_generic_relocate_section, so it is OK if it does not
5100 always work. It is the responsibility of the including file to
5101 make sure it is reasonable if it is needed. */
5102
5103static reloc_howto_type *coff_rtype_to_howto
5104 PARAMS ((bfd *, asection *, struct internal_reloc *,
5105 struct coff_link_hash_entry *, struct internal_syment *,
5106 bfd_vma *));
5107
5108/*ARGSUSED*/
5109static reloc_howto_type *
5110coff_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
5f771d47
ILT
5111 bfd *abfd ATTRIBUTE_UNUSED;
5112 asection *sec ATTRIBUTE_UNUSED;
252b5132 5113 struct internal_reloc *rel;
5f771d47
ILT
5114 struct coff_link_hash_entry *h ATTRIBUTE_UNUSED;
5115 struct internal_syment *sym ATTRIBUTE_UNUSED;
5116 bfd_vma *addendp ATTRIBUTE_UNUSED;
252b5132
RH
5117{
5118 arelent genrel;
5119
5120 RTYPE2HOWTO (&genrel, rel);
5121 return genrel.howto;
5122}
5123
5124#else /* ! defined (RTYPE2HOWTO) */
5125
5126#define coff_rtype_to_howto NULL
5127
5128#endif /* ! defined (RTYPE2HOWTO) */
5129#endif /* ! defined (coff_rtype_to_howto) */
5130
5131/* This is stupid. This function should be a boolean predicate. */
5132static long
5133coff_canonicalize_reloc (abfd, section, relptr, symbols)
5134 bfd * abfd;
5135 sec_ptr section;
5136 arelent ** relptr;
5137 asymbol ** symbols;
5138{
5139 arelent *tblptr = section->relocation;
5140 unsigned int count = 0;
5141
252b5132
RH
5142 if (section->flags & SEC_CONSTRUCTOR)
5143 {
ed781d5d
NC
5144 /* This section has relocs made up by us, they are not in the
5145 file, so take them out of their chain and place them into
5146 the data area provided. */
252b5132 5147 arelent_chain *chain = section->constructor_chain;
ed781d5d 5148
252b5132
RH
5149 for (count = 0; count < section->reloc_count; count++)
5150 {
5151 *relptr++ = &chain->relent;
5152 chain = chain->next;
5153 }
252b5132
RH
5154 }
5155 else
5156 {
5157 if (! coff_slurp_reloc_table (abfd, section, symbols))
5158 return -1;
5159
5160 tblptr = section->relocation;
5161
5162 for (; count++ < section->reloc_count;)
5163 *relptr++ = tblptr++;
252b5132
RH
5164 }
5165 *relptr = 0;
5166 return section->reloc_count;
5167}
5168
5169#ifdef GNU960
5170file_ptr
5171coff_sym_filepos (abfd)
5172 bfd *abfd;
5173{
5174 return obj_sym_filepos (abfd);
5175}
5176#endif
5177
5178#ifndef coff_reloc16_estimate
5179#define coff_reloc16_estimate dummy_reloc16_estimate
5180
5181static int dummy_reloc16_estimate
5182 PARAMS ((bfd *, asection *, arelent *, unsigned int,
5183 struct bfd_link_info *));
5184
5185static int
5186dummy_reloc16_estimate (abfd, input_section, reloc, shrink, link_info)
5f771d47
ILT
5187 bfd *abfd ATTRIBUTE_UNUSED;
5188 asection *input_section ATTRIBUTE_UNUSED;
5189 arelent *reloc ATTRIBUTE_UNUSED;
5190 unsigned int shrink ATTRIBUTE_UNUSED;
5191 struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
252b5132
RH
5192{
5193 abort ();
00692651 5194 return 0;
252b5132
RH
5195}
5196
5197#endif
5198
5199#ifndef coff_reloc16_extra_cases
5200
5201#define coff_reloc16_extra_cases dummy_reloc16_extra_cases
5202
5203/* This works even if abort is not declared in any header file. */
5204
5205static void dummy_reloc16_extra_cases
5206 PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
5207 bfd_byte *, unsigned int *, unsigned int *));
5208
5209static void
5210dummy_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr,
5211 dst_ptr)
5f771d47
ILT
5212 bfd *abfd ATTRIBUTE_UNUSED;
5213 struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
5214 struct bfd_link_order *link_order ATTRIBUTE_UNUSED;
5215 arelent *reloc ATTRIBUTE_UNUSED;
5216 bfd_byte *data ATTRIBUTE_UNUSED;
5217 unsigned int *src_ptr ATTRIBUTE_UNUSED;
5218 unsigned int *dst_ptr ATTRIBUTE_UNUSED;
252b5132
RH
5219{
5220 abort ();
5221}
5222#endif
5223
e2d34d7d
DJ
5224#ifndef coff_bfd_link_hash_table_free
5225#define coff_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
5226#endif
5227
252b5132
RH
5228/* If coff_relocate_section is defined, we can use the optimized COFF
5229 backend linker. Otherwise we must continue to use the old linker. */
5230#ifdef coff_relocate_section
5231#ifndef coff_bfd_link_hash_table_create
5232#define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
5233#endif
5234#ifndef coff_bfd_link_add_symbols
5235#define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
5236#endif
5237#ifndef coff_bfd_final_link
5238#define coff_bfd_final_link _bfd_coff_final_link
5239#endif
5240#else /* ! defined (coff_relocate_section) */
5241#define coff_relocate_section NULL
5242#ifndef coff_bfd_link_hash_table_create
5243#define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
5244#endif
5245#ifndef coff_bfd_link_add_symbols
5246#define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
5247#endif
5248#define coff_bfd_final_link _bfd_generic_final_link
5249#endif /* ! defined (coff_relocate_section) */
5250
2d653fc7 5251#define coff_bfd_link_just_syms _bfd_generic_link_just_syms
252b5132
RH
5252#define coff_bfd_link_split_section _bfd_generic_link_split_section
5253
5254#ifndef coff_start_final_link
5255#define coff_start_final_link NULL
5256#endif
5257
5258#ifndef coff_adjust_symndx
5259#define coff_adjust_symndx NULL
5260#endif
5261
5262#ifndef coff_link_add_one_symbol
5263#define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
5264#endif
5265
5266#ifndef coff_link_output_has_begun
5267
b34976b6 5268static bfd_boolean coff_link_output_has_begun
252b5132
RH
5269 PARAMS ((bfd *, struct coff_final_link_info *));
5270
b34976b6 5271static bfd_boolean
252b5132
RH
5272coff_link_output_has_begun (abfd, info)
5273 bfd * abfd;
5f771d47 5274 struct coff_final_link_info * info ATTRIBUTE_UNUSED;
252b5132
RH
5275{
5276 return abfd->output_has_begun;
5277}
5278#endif
5279
5280#ifndef coff_final_link_postscript
5281
b34976b6 5282static bfd_boolean coff_final_link_postscript
252b5132
RH
5283 PARAMS ((bfd *, struct coff_final_link_info *));
5284
b34976b6 5285static bfd_boolean
252b5132 5286coff_final_link_postscript (abfd, pfinfo)
5f771d47
ILT
5287 bfd * abfd ATTRIBUTE_UNUSED;
5288 struct coff_final_link_info * pfinfo ATTRIBUTE_UNUSED;
252b5132 5289{
b34976b6 5290 return TRUE;
252b5132
RH
5291}
5292#endif
5293
5294#ifndef coff_SWAP_aux_in
5295#define coff_SWAP_aux_in coff_swap_aux_in
5296#endif
5297#ifndef coff_SWAP_sym_in
5298#define coff_SWAP_sym_in coff_swap_sym_in
5299#endif
5300#ifndef coff_SWAP_lineno_in
5301#define coff_SWAP_lineno_in coff_swap_lineno_in
5302#endif
5303#ifndef coff_SWAP_aux_out
5304#define coff_SWAP_aux_out coff_swap_aux_out
5305#endif
5306#ifndef coff_SWAP_sym_out
5307#define coff_SWAP_sym_out coff_swap_sym_out
5308#endif
5309#ifndef coff_SWAP_lineno_out
5310#define coff_SWAP_lineno_out coff_swap_lineno_out
5311#endif
5312#ifndef coff_SWAP_reloc_out
5313#define coff_SWAP_reloc_out coff_swap_reloc_out
5314#endif
5315#ifndef coff_SWAP_filehdr_out
5316#define coff_SWAP_filehdr_out coff_swap_filehdr_out
5317#endif
5318#ifndef coff_SWAP_aouthdr_out
5319#define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
5320#endif
5321#ifndef coff_SWAP_scnhdr_out
5322#define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
5323#endif
5324#ifndef coff_SWAP_reloc_in
5325#define coff_SWAP_reloc_in coff_swap_reloc_in
5326#endif
5327#ifndef coff_SWAP_filehdr_in
5328#define coff_SWAP_filehdr_in coff_swap_filehdr_in
5329#endif
5330#ifndef coff_SWAP_aouthdr_in
5331#define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
5332#endif
5333#ifndef coff_SWAP_scnhdr_in
5334#define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
5335#endif
5336
692b7d62 5337static const bfd_coff_backend_data bfd_coff_std_swap_table =
252b5132
RH
5338{
5339 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5340 coff_SWAP_aux_out, coff_SWAP_sym_out,
5341 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5342 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5343 coff_SWAP_scnhdr_out,
692b7d62 5344 FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN,
252b5132 5345#ifdef COFF_LONG_FILENAMES
b34976b6 5346 TRUE,
252b5132 5347#else
b34976b6 5348 FALSE,
252b5132
RH
5349#endif
5350#ifdef COFF_LONG_SECTION_NAMES
b34976b6 5351 TRUE,
252b5132 5352#else
b34976b6 5353 FALSE,
252b5132 5354#endif
a022216b 5355 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
7f6d05e8 5356#ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
b34976b6 5357 TRUE,
7f6d05e8 5358#else
b34976b6 5359 FALSE,
7f6d05e8
CP
5360#endif
5361#ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5362 4,
5363#else
5364 2,
5365#endif
252b5132
RH
5366 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5367 coff_SWAP_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook,
5368 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5369 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5370 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5d54c628 5371 coff_classify_symbol, coff_compute_section_file_positions,
252b5132
RH
5372 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5373 coff_adjust_symndx, coff_link_add_one_symbol,
5374 coff_link_output_has_begun, coff_final_link_postscript
5375};
5376
5a5b9651
SS
5377#ifdef TICOFF
5378/* COFF0 differs in file/section header size and relocation entry size. */
5379static const bfd_coff_backend_data ticoff0_swap_table =
5380{
5381 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5382 coff_SWAP_aux_out, coff_SWAP_sym_out,
5383 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5384 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5385 coff_SWAP_scnhdr_out,
5386 FILHSZ_V0, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ_V0, LINESZ, FILNMLEN,
5387#ifdef COFF_LONG_FILENAMES
5388 TRUE,
5389#else
5390 FALSE,
5391#endif
5392#ifdef COFF_LONG_SECTION_NAMES
5393 TRUE,
5394#else
5395 FALSE,
5396#endif
5397 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5398#ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5399 TRUE,
5400#else
5401 FALSE,
5402#endif
5403#ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5404 4,
5405#else
5406 2,
5407#endif
5408 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5409 coff_SWAP_reloc_in, ticoff0_bad_format_hook, coff_set_arch_mach_hook,
5410 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5411 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5412 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5413 coff_classify_symbol, coff_compute_section_file_positions,
5414 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5415 coff_adjust_symndx, coff_link_add_one_symbol,
5416 coff_link_output_has_begun, coff_final_link_postscript
5417};
5418#endif
5419
5420#ifdef TICOFF
5421/* COFF1 differs in section header size. */
5422static const bfd_coff_backend_data ticoff1_swap_table =
5423{
5424 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5425 coff_SWAP_aux_out, coff_SWAP_sym_out,
5426 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5427 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5428 coff_SWAP_scnhdr_out,
5429 FILHSZ, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN,
5430#ifdef COFF_LONG_FILENAMES
5431 TRUE,
5432#else
5433 FALSE,
5434#endif
5435#ifdef COFF_LONG_SECTION_NAMES
5436 TRUE,
5437#else
5438 FALSE,
5439#endif
5440 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5441#ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5442 TRUE,
5443#else
5444 FALSE,
5445#endif
5446#ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5447 4,
5448#else
5449 2,
5450#endif
5451 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5452 coff_SWAP_reloc_in, ticoff1_bad_format_hook, coff_set_arch_mach_hook,
5453 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5454 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5455 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5456 coff_classify_symbol, coff_compute_section_file_positions,
5457 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5458 coff_adjust_symndx, coff_link_add_one_symbol,
5459 coff_link_output_has_begun, coff_final_link_postscript
5460};
5461#endif
5462
252b5132
RH
5463#ifndef coff_close_and_cleanup
5464#define coff_close_and_cleanup _bfd_generic_close_and_cleanup
5465#endif
5466
5467#ifndef coff_bfd_free_cached_info
5468#define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
5469#endif
5470
5471#ifndef coff_get_section_contents
5472#define coff_get_section_contents _bfd_generic_get_section_contents
5473#endif
5474
5475#ifndef coff_bfd_copy_private_symbol_data
5476#define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
5477#endif
5478
5479#ifndef coff_bfd_copy_private_section_data
5480#define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
5481#endif
5482
e60b52c6 5483#ifndef coff_bfd_copy_private_bfd_data
252b5132
RH
5484#define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
5485#endif
5486
5487#ifndef coff_bfd_merge_private_bfd_data
5488#define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
5489#endif
5490
5491#ifndef coff_bfd_set_private_flags
5492#define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
5493#endif
5494
e60b52c6 5495#ifndef coff_bfd_print_private_bfd_data
252b5132
RH
5496#define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
5497#endif
5498
5499#ifndef coff_bfd_is_local_label_name
5500#define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
5501#endif
5502
5503#ifndef coff_read_minisymbols
5504#define coff_read_minisymbols _bfd_generic_read_minisymbols
5505#endif
5506
5507#ifndef coff_minisymbol_to_symbol
5508#define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
5509#endif
5510
5511/* The reloc lookup routine must be supplied by each individual COFF
5512 backend. */
5513#ifndef coff_bfd_reloc_type_lookup
5514#define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5515#endif
5516
5517#ifndef coff_bfd_get_relocated_section_contents
5518#define coff_bfd_get_relocated_section_contents \
5519 bfd_generic_get_relocated_section_contents
5520#endif
5521
5522#ifndef coff_bfd_relax_section
5523#define coff_bfd_relax_section bfd_generic_relax_section
5524#endif
5525
5526#ifndef coff_bfd_gc_sections
5527#define coff_bfd_gc_sections bfd_generic_gc_sections
5528#endif
c3c89269 5529
8550eb6e
JJ
5530#ifndef coff_bfd_merge_sections
5531#define coff_bfd_merge_sections bfd_generic_merge_sections
5532#endif
5533
e61463e1
AM
5534#ifndef coff_bfd_discard_group
5535#define coff_bfd_discard_group bfd_generic_discard_group
5536#endif
5537
3fa78519 5538#define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
4c117b10
ILT
5539const bfd_target VAR = \
5540{ \
5541 NAME , \
5542 bfd_target_coff_flavour, \
5543 BFD_ENDIAN_BIG, /* data byte order is big */ \
5544 BFD_ENDIAN_BIG, /* header byte order is big */ \
5545 /* object flags */ \
5546 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5547 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5548 /* section flags */ \
5549 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5550 UNDER, /* leading symbol underscore */ \
5551 '/', /* ar_pad_char */ \
5552 15, /* ar_max_namelen */ \
5553 \
5554 /* Data conversion functions. */ \
5555 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5556 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5557 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5558 \
5559 /* Header conversion functions. */ \
5560 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5561 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5562 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5563 \
5564 /* bfd_check_format */ \
5565 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5566 _bfd_dummy_target }, \
5567 /* bfd_set_format */ \
5568 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5569 /* bfd_write_contents */ \
5570 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5571 bfd_false }, \
5572 \
5573 BFD_JUMP_TABLE_GENERIC (coff), \
5574 BFD_JUMP_TABLE_COPY (coff), \
5575 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5576 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5577 BFD_JUMP_TABLE_SYMBOLS (coff), \
5578 BFD_JUMP_TABLE_RELOCS (coff), \
5579 BFD_JUMP_TABLE_WRITE (coff), \
5580 BFD_JUMP_TABLE_LINK (coff), \
5581 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5582 \
5583 ALTERNATIVE, \
5584 \
3fa78519 5585 SWAP_TABLE \
c3c89269
NC
5586};
5587
3fa78519
SS
5588#define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5589const bfd_target VAR = \
5590{ \
5591 NAME , \
5592 bfd_target_coff_flavour, \
5593 BFD_ENDIAN_LITTLE, /* data byte order is little */ \
5594 BFD_ENDIAN_BIG, /* header byte order is big */ \
5595 /* object flags */ \
5596 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5597 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5598 /* section flags */ \
5599 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5600 UNDER, /* leading symbol underscore */ \
5601 '/', /* ar_pad_char */ \
5602 15, /* ar_max_namelen */ \
5603 \
5604 /* Data conversion functions. */ \
5605 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5606 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5607 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5608 \
5609 /* Header conversion functions. */ \
5610 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5611 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5612 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5613 \
5614 /* bfd_check_format */ \
5615 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5616 _bfd_dummy_target }, \
5617 /* bfd_set_format */ \
5618 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5619 /* bfd_write_contents */ \
5620 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5621 bfd_false }, \
5622 \
5623 BFD_JUMP_TABLE_GENERIC (coff), \
5624 BFD_JUMP_TABLE_COPY (coff), \
5625 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5626 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5627 BFD_JUMP_TABLE_SYMBOLS (coff), \
5628 BFD_JUMP_TABLE_RELOCS (coff), \
5629 BFD_JUMP_TABLE_WRITE (coff), \
5630 BFD_JUMP_TABLE_LINK (coff), \
5631 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5632 \
5633 ALTERNATIVE, \
5634 \
5635 SWAP_TABLE \
5636};
5637
5638#define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
4c117b10
ILT
5639const bfd_target VAR = \
5640{ \
5641 NAME , \
5642 bfd_target_coff_flavour, \
5643 BFD_ENDIAN_LITTLE, /* data byte order is little */ \
5644 BFD_ENDIAN_LITTLE, /* header byte order is little */ \
5645 /* object flags */ \
5646 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5647 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5648 /* section flags */ \
5649 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5650 UNDER, /* leading symbol underscore */ \
5651 '/', /* ar_pad_char */ \
5652 15, /* ar_max_namelen */ \
5653 \
5654 /* Data conversion functions. */ \
5655 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5656 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5657 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5658 /* Header conversion functions. */ \
5659 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5660 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5661 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5662 /* bfd_check_format */ \
5663 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5664 _bfd_dummy_target }, \
5665 /* bfd_set_format */ \
5666 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5667 /* bfd_write_contents */ \
5668 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5669 bfd_false }, \
5670 \
5671 BFD_JUMP_TABLE_GENERIC (coff), \
5672 BFD_JUMP_TABLE_COPY (coff), \
5673 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5674 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5675 BFD_JUMP_TABLE_SYMBOLS (coff), \
5676 BFD_JUMP_TABLE_RELOCS (coff), \
5677 BFD_JUMP_TABLE_WRITE (coff), \
5678 BFD_JUMP_TABLE_LINK (coff), \
5679 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5680 \
5681 ALTERNATIVE, \
5682 \
3fa78519 5683 SWAP_TABLE \
c3c89269 5684};