Remove redundant definition.
[deliverable/binutils-gdb.git] / bfd / coffcode.h
CommitLineData
252b5132 1/* Support for the generic parts of most COFF variants, for BFD.
7898deda
NC
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001
252b5132
RH
4 Free Software Foundation, Inc.
5 Written by Cygnus Support.
6
7This file is part of BFD, the Binary File Descriptor library.
8
9This program is free software; you can redistribute it and/or modify
10it under the terms of the GNU General Public License as published by
11the Free Software Foundation; either version 2 of the License, or
12(at your option) any later version.
13
14This program is distributed in the hope that it will be useful,
15but WITHOUT ANY WARRANTY; without even the implied warranty of
16MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17GNU General Public License for more details.
18
19You should have received a copy of the GNU General Public License
20along with this program; if not, write to the Free Software
21Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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
228 structured hierachy required by coff. It changes each pointer
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
RH
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
AM
298. {* Have the line numbers been relocated yet ? *}
299. boolean done_lineno;
252b5132
RH
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
312static long sec_to_styp_flags PARAMS ((const char *, flagword));
7c8ca0e4
NC
313static boolean styp_to_sec_flags
314 PARAMS ((bfd *, PTR, const char *, asection *, flagword *));
252b5132 315static boolean coff_bad_format_hook PARAMS ((bfd *, PTR));
5dccc1dd
ILT
316static void coff_set_custom_section_alignment
317 PARAMS ((bfd *, asection *, const struct coff_section_alignment_entry *,
8a1ad8e7 318 const unsigned int));
252b5132
RH
319static boolean coff_new_section_hook PARAMS ((bfd *, asection *));
320static boolean coff_set_arch_mach_hook PARAMS ((bfd *, PTR));
321static boolean coff_write_relocs PARAMS ((bfd *, int));
322static boolean coff_set_flags
323 PARAMS ((bfd *, unsigned int *, unsigned short *));
324static boolean coff_set_arch_mach
dc810e39 325 PARAMS ((bfd *, enum bfd_architecture, unsigned long)) ATTRIBUTE_UNUSED;
252b5132 326static boolean coff_compute_section_file_positions PARAMS ((bfd *));
cea4409c 327static boolean coff_write_object_contents PARAMS ((bfd *)) ATTRIBUTE_UNUSED;
252b5132
RH
328static boolean coff_set_section_contents
329 PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type));
dc810e39 330static PTR buy_and_read PARAMS ((bfd *, file_ptr, bfd_size_type));
252b5132
RH
331static boolean coff_slurp_line_table PARAMS ((bfd *, asection *));
332static boolean coff_slurp_symbol_table PARAMS ((bfd *));
5d54c628
ILT
333static enum coff_symbol_classification coff_classify_symbol
334 PARAMS ((bfd *, struct internal_syment *));
252b5132
RH
335static boolean coff_slurp_reloc_table PARAMS ((bfd *, asection *, asymbol **));
336static long coff_canonicalize_reloc
337 PARAMS ((bfd *, asection *, arelent **, asymbol **));
338#ifndef coff_mkobject_hook
339static PTR coff_mkobject_hook PARAMS ((bfd *, PTR, PTR));
340#endif
1276aefa
NC
341#ifdef COFF_WITH_PE
342static flagword handle_COMDAT PARAMS ((bfd *, flagword, PTR, const char *, asection *));
343#endif
252b5132
RH
344\f
345/* void warning(); */
346
41733515
ILT
347/* Return a word with STYP_* (scnhdr.s_flags) flags set to represent
348 the incoming SEC_* flags. The inverse of this function is
349 styp_to_sec_flags(). NOTE: If you add to/change this routine, you
350 should probably mirror the changes in styp_to_sec_flags(). */
351
352#ifndef COFF_WITH_PE
353
51db3708
NC
354/* Macros for setting debugging flags. */
355#ifdef STYP_DEBUG
356#define STYP_XCOFF_DEBUG STYP_DEBUG
357#else
358#define STYP_XCOFF_DEBUG STYP_INFO
359#endif
360
361#ifdef COFF_ALIGN_IN_S_FLAGS
362#define STYP_DEBUG_INFO STYP_DSECT
363#else
364#define STYP_DEBUG_INFO STYP_INFO
365#endif
366
252b5132
RH
367static long
368sec_to_styp_flags (sec_name, sec_flags)
dc810e39 369 const char *sec_name;
252b5132
RH
370 flagword sec_flags;
371{
372 long styp_flags = 0;
373
374 if (!strcmp (sec_name, _TEXT))
375 {
376 styp_flags = STYP_TEXT;
377 }
378 else if (!strcmp (sec_name, _DATA))
379 {
380 styp_flags = STYP_DATA;
381 }
382 else if (!strcmp (sec_name, _BSS))
383 {
384 styp_flags = STYP_BSS;
385#ifdef _COMMENT
386 }
387 else if (!strcmp (sec_name, _COMMENT))
388 {
389 styp_flags = STYP_INFO;
390#endif /* _COMMENT */
391#ifdef _LIB
392 }
393 else if (!strcmp (sec_name, _LIB))
394 {
395 styp_flags = STYP_LIB;
396#endif /* _LIB */
397#ifdef _LIT
398 }
399 else if (!strcmp (sec_name, _LIT))
400 {
401 styp_flags = STYP_LIT;
402#endif /* _LIT */
403 }
51db3708 404 else if (!strncmp (sec_name, ".debug", 6))
252b5132 405 {
51db3708
NC
406 /* Handle the XCOFF debug section and DWARF2 debug sections. */
407 if (!sec_name[6])
408 styp_flags = STYP_XCOFF_DEBUG;
409 else
410 styp_flags = STYP_DEBUG_INFO;
252b5132
RH
411 }
412 else if (!strncmp (sec_name, ".stab", 5))
413 {
51db3708
NC
414 styp_flags = STYP_DEBUG_INFO;
415 }
416#ifdef COFF_LONG_SECTION_NAMES
417 else if (!strncmp (sec_name, ".gnu.linkonce.wi.", 17))
418 {
419 styp_flags = STYP_DEBUG_INFO;
252b5132 420 }
51db3708 421#endif
252b5132
RH
422#ifdef RS6000COFF_C
423 else if (!strcmp (sec_name, _PAD))
424 {
425 styp_flags = STYP_PAD;
426 }
427 else if (!strcmp (sec_name, _LOADER))
428 {
429 styp_flags = STYP_LOADER;
430 }
67fdeebe
TR
431 else if (!strcmp (sec_name, _EXCEPT))
432 {
433 styp_flags = STYP_EXCEPT;
434 }
435 else if (!strcmp (sec_name, _TYPCHK))
436 {
437 styp_flags = STYP_TYPCHK;
438 }
252b5132
RH
439#endif
440 /* Try and figure out what it should be */
441 else if (sec_flags & SEC_CODE)
442 {
443 styp_flags = STYP_TEXT;
444 }
445 else if (sec_flags & SEC_DATA)
446 {
447 styp_flags = STYP_DATA;
448 }
449 else if (sec_flags & SEC_READONLY)
450 {
451#ifdef STYP_LIT /* 29k readonly text/data section */
452 styp_flags = STYP_LIT;
453#else
454 styp_flags = STYP_TEXT;
455#endif /* STYP_LIT */
456 }
457 else if (sec_flags & SEC_LOAD)
458 {
459 styp_flags = STYP_TEXT;
460 }
461 else if (sec_flags & SEC_ALLOC)
462 {
463 styp_flags = STYP_BSS;
464 }
465
34cbe64e
TW
466#ifdef STYP_CLINK
467 if (sec_flags & SEC_CLINK)
468 styp_flags |= STYP_CLINK;
469#endif
470
471#ifdef STYP_BLOCK
472 if (sec_flags & SEC_BLOCK)
473 styp_flags |= STYP_BLOCK;
474#endif
475
252b5132
RH
476#ifdef STYP_NOLOAD
477 if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0)
478 styp_flags |= STYP_NOLOAD;
479#endif
480
41733515
ILT
481 return styp_flags;
482}
483
484#else /* COFF_WITH_PE */
485
486/* The PE version; see above for the general comments. The non-PE
487 case seems to be more guessing, and breaks PE format; specifically,
488 .rdata is readonly, but it sure ain't text. Really, all this
489 should be set up properly in gas (or whatever assembler is in use),
490 and honor whatever objcopy/strip, etc. sent us as input. */
491
492static long
493sec_to_styp_flags (sec_name, sec_flags)
494 const char *sec_name ATTRIBUTE_UNUSED;
495 flagword sec_flags;
496{
497 long styp_flags = 0;
498
499 /* caution: there are at least three groups of symbols that have
500 very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*.
501 SEC_* are the BFD internal flags, used for generic BFD
502 information. STYP_* are the COFF section flags which appear in
503 COFF files. IMAGE_SCN_* are the PE section flags which appear in
504 PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap,
505 but there are more IMAGE_SCN_* flags. */
506
507 /* skip LOAD */
508 /* READONLY later */
509 /* skip RELOC */
510 if ((sec_flags & SEC_CODE) != 0)
511 styp_flags |= IMAGE_SCN_CNT_CODE;
512 if ((sec_flags & SEC_DATA) != 0)
513 styp_flags |= IMAGE_SCN_CNT_INITIALIZED_DATA;
514 if ((sec_flags & SEC_ALLOC) != 0 && (sec_flags & SEC_LOAD) == 0)
515 styp_flags |= IMAGE_SCN_CNT_UNINITIALIZED_DATA; /* ==STYP_BSS */
516 /* skip ROM */
dc810e39 517 /* skip constRUCTOR */
41733515
ILT
518 /* skip CONTENTS */
519#ifdef STYP_NOLOAD
520 if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0)
521 styp_flags |= STYP_NOLOAD;
522#endif
523 if ((sec_flags & SEC_IS_COMMON) != 0)
252b5132 524 styp_flags |= IMAGE_SCN_LNK_COMDAT;
41733515
ILT
525 if ((sec_flags & SEC_DEBUGGING) != 0)
526 styp_flags |= IMAGE_SCN_MEM_DISCARDABLE;
527 if ((sec_flags & SEC_EXCLUDE) != 0)
528 styp_flags |= IMAGE_SCN_LNK_REMOVE;
529 if ((sec_flags & SEC_NEVER_LOAD) != 0)
530 styp_flags |= IMAGE_SCN_LNK_REMOVE;
531 /* skip IN_MEMORY */
532 /* skip SORT */
e60b52c6
KH
533 if (sec_flags & SEC_LINK_ONCE)
534 styp_flags |= IMAGE_SCN_LNK_COMDAT;
41733515
ILT
535 /* skip LINK_DUPLICATES */
536 /* skip LINKER_CREATED */
537
538 /* For now, the read/write bits are mapped onto SEC_READONLY, even
539 though the semantics don't quite match. The bits from the input
540 are retained in pei_section_data(abfd, section)->pe_flags */
541
e60b52c6 542 styp_flags |= IMAGE_SCN_MEM_READ; /* always readable. */
41733515
ILT
543 if ((sec_flags & SEC_READONLY) == 0)
544 styp_flags |= IMAGE_SCN_MEM_WRITE; /* Invert READONLY for write */
545 if (sec_flags & SEC_CODE)
546 styp_flags |= IMAGE_SCN_MEM_EXECUTE; /* CODE->EXECUTE */
bd826630 547 if (sec_flags & SEC_SHARED)
41733515 548 styp_flags |= IMAGE_SCN_MEM_SHARED; /* Shared remains meaningful */
252b5132 549
e60b52c6 550 return styp_flags;
252b5132 551}
41733515
ILT
552
553#endif /* COFF_WITH_PE */
554
555/* Return a word with SEC_* flags set to represent the incoming STYP_*
556 flags (from scnhdr.s_flags). The inverse of this function is
557 sec_to_styp_flags(). NOTE: If you add to/change this routine, you
558 should probably mirror the changes in sec_to_styp_flags(). */
559
560#ifndef COFF_WITH_PE
561
7c8ca0e4
NC
562static boolean
563styp_to_sec_flags (abfd, hdr, name, section, flags_ptr)
5f771d47 564 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH
565 PTR hdr;
566 const char *name;
41733515 567 asection *section ATTRIBUTE_UNUSED;
7c8ca0e4 568 flagword *flags_ptr;
252b5132
RH
569{
570 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
571 long styp_flags = internal_s->s_flags;
572 flagword sec_flags = 0;
573
34cbe64e
TW
574#ifdef STYP_BLOCK
575 if (styp_flags & STYP_BLOCK)
7c8ca0e4 576 sec_flags |= SEC_BLOCK;
e60b52c6 577#endif
34cbe64e
TW
578
579#ifdef STYP_CLINK
580 if (styp_flags & STYP_CLINK)
7c8ca0e4 581 sec_flags |= SEC_CLINK;
e60b52c6 582#endif
34cbe64e 583
252b5132
RH
584#ifdef STYP_NOLOAD
585 if (styp_flags & STYP_NOLOAD)
7c8ca0e4 586 sec_flags |= SEC_NEVER_LOAD;
252b5132
RH
587#endif /* STYP_NOLOAD */
588
589 /* For 386 COFF, at least, an unloadable text or data section is
590 actually a shared library section. */
591 if (styp_flags & STYP_TEXT)
592 {
593 if (sec_flags & SEC_NEVER_LOAD)
594 sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY;
595 else
596 sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
597 }
598 else if (styp_flags & STYP_DATA)
599 {
600 if (sec_flags & SEC_NEVER_LOAD)
601 sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
602 else
603 sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
604 }
605 else if (styp_flags & STYP_BSS)
606 {
607#ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
608 if (sec_flags & SEC_NEVER_LOAD)
609 sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY;
610 else
611#endif
612 sec_flags |= SEC_ALLOC;
613 }
614 else if (styp_flags & STYP_INFO)
615 {
616 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
617 defined. coff_compute_section_file_positions uses
618 COFF_PAGE_SIZE to ensure that the low order bits of the
619 section VMA and the file offset match. If we don't know
620 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
621 and demand page loading of the file will fail. */
622#if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS)
623 sec_flags |= SEC_DEBUGGING;
624#endif
625 }
626 else if (styp_flags & STYP_PAD)
7c8ca0e4 627 sec_flags = 0;
252b5132
RH
628 else if (strcmp (name, _TEXT) == 0)
629 {
630 if (sec_flags & SEC_NEVER_LOAD)
631 sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY;
632 else
633 sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
634 }
635 else if (strcmp (name, _DATA) == 0)
636 {
637 if (sec_flags & SEC_NEVER_LOAD)
638 sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
639 else
640 sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
641 }
642 else if (strcmp (name, _BSS) == 0)
643 {
644#ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
645 if (sec_flags & SEC_NEVER_LOAD)
646 sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY;
647 else
648#endif
649 sec_flags |= SEC_ALLOC;
650 }
51db3708 651 else if (strncmp (name, ".debug", 6) == 0
252b5132
RH
652#ifdef _COMMENT
653 || strcmp (name, _COMMENT) == 0
51db3708
NC
654#endif
655#ifdef COFF_LONG_SECTION_NAMES
656 || strncmp (name, ".gnu.linkonce.wi.", 17) == 0
252b5132
RH
657#endif
658 || strncmp (name, ".stab", 5) == 0)
659 {
660#ifdef COFF_PAGE_SIZE
661 sec_flags |= SEC_DEBUGGING;
662#endif
663 }
664#ifdef _LIB
665 else if (strcmp (name, _LIB) == 0)
666 ;
667#endif
668#ifdef _LIT
669 else if (strcmp (name, _LIT) == 0)
7c8ca0e4 670 sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY;
252b5132
RH
671#endif
672 else
7c8ca0e4 673 sec_flags |= SEC_ALLOC | SEC_LOAD;
252b5132
RH
674
675#ifdef STYP_LIT /* A29k readonly text/data section type */
676 if ((styp_flags & STYP_LIT) == STYP_LIT)
7c8ca0e4 677 sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY);
252b5132 678#endif /* STYP_LIT */
7c8ca0e4 679
252b5132
RH
680#ifdef STYP_OTHER_LOAD /* Other loaded sections */
681 if (styp_flags & STYP_OTHER_LOAD)
7c8ca0e4 682 sec_flags = (SEC_LOAD | SEC_ALLOC);
252b5132
RH
683#endif /* STYP_SDATA */
684
41733515
ILT
685#if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
686 /* As a GNU extension, if the name begins with .gnu.linkonce, we
687 only link a single copy of the section. This is used to support
688 g++. g++ will emit each template expansion in its own section.
689 The symbols will be defined as weak, so that multiple definitions
690 are permitted. The GNU linker extension is to actually discard
691 all but one of the sections. */
692 if (strncmp (name, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0)
693 sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
694#endif
695
7c8ca0e4
NC
696 if (flags_ptr == NULL)
697 return false;
698
699 * flags_ptr = sec_flags;
700 return true;
41733515
ILT
701}
702
703#else /* COFF_WITH_PE */
704
41733515 705static flagword
1276aefa
NC
706handle_COMDAT (abfd, sec_flags, hdr, name, section)
707 bfd * abfd;
708 flagword sec_flags;
41733515
ILT
709 PTR hdr;
710 const char *name;
711 asection *section;
712{
713 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
1276aefa
NC
714 bfd_byte *esymstart, *esym, *esymend;
715 int seen_state = 0;
716 char *target_name = NULL;
717
718 sec_flags |= SEC_LINK_ONCE;
719
720 /* Unfortunately, the PE format stores essential information in
721 the symbol table, of all places. We need to extract that
722 information now, so that objdump and the linker will know how
723 to handle the section without worrying about the symbols. We
724 can't call slurp_symtab, because the linker doesn't want the
725 swapped symbols. */
726
727 /* COMDAT sections are special. The first symbol is the section
728 symbol, which tells what kind of COMDAT section it is. The
729 second symbol is the "comdat symbol" - the one with the
730 unique name. GNU uses the section symbol for the unique
731 name; MS uses ".text" for every comdat section. Sigh. - DJ */
732
733 /* This is not mirrored in sec_to_styp_flags(), but there
734 doesn't seem to be a need to, either, and it would at best be
735 rather messy. */
736
737 if (! _bfd_coff_get_external_symbols (abfd))
738 return sec_flags;
dc810e39 739
1276aefa
NC
740 esymstart = esym = (bfd_byte *) obj_coff_external_syms (abfd);
741 esymend = esym + obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd);
742
743 while (esym < esymend)
41733515 744 {
1276aefa
NC
745 struct internal_syment isym;
746 char buf[SYMNMLEN + 1];
747 const char *symname;
252b5132 748
1276aefa 749 bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &isym);
252b5132 750
1276aefa
NC
751 if (sizeof (internal_s->s_name) > SYMNMLEN)
752 {
753 /* This case implies that the matching
754 symbol name will be in the string table. */
755 abort ();
756 }
757
758 if (isym.n_scnum == section->target_index)
759 {
760 /* According to the MSVC documentation, the first
761 TWO entries with the section # are both of
762 interest to us. The first one is the "section
763 symbol" (section name). The second is the comdat
764 symbol name. Here, we've found the first
765 qualifying entry; we distinguish it from the
766 second with a state flag.
767
768 In the case of gas-generated (at least until that
769 is fixed) .o files, it isn't necessarily the
770 second one. It may be some other later symbol.
771
772 Since gas also doesn't follow MS conventions and
773 emits the section similar to .text$<name>, where
774 <something> is the name we're looking for, we
775 distinguish the two as follows:
776
777 If the section name is simply a section name (no
778 $) we presume it's MS-generated, and look at
779 precisely the second symbol for the comdat name.
780 If the section name has a $, we assume it's
781 gas-generated, and look for <something> (whatever
782 follows the $) as the comdat symbol. */
783
784 /* All 3 branches use this */
785 symname = _bfd_coff_internal_syment_name (abfd, &isym, buf);
786
787 if (symname == NULL)
788 abort ();
789
790 switch (seen_state)
252b5132 791 {
1276aefa
NC
792 case 0:
793 {
794 /* The first time we've seen the symbol. */
795 union internal_auxent aux;
796
797 seen_state = 1;
798
799 /* If it isn't the stuff we're expecting, die;
800 The MS documentation is vague, but it
801 appears that the second entry serves BOTH
802 as the comdat symbol and the defining
803 symbol record (either C_STAT or C_EXT,
804 possibly with an aux entry with debug
805 information if it's a function.) It
806 appears the only way to find the second one
807 is to count. (On Intel, they appear to be
808 adjacent, but on Alpha, they have been
809 found separated.)
810
811 Here, we think we've found the first one,
812 but there's some checking we can do to be
813 sure. */
814
815 if (! (isym.n_sclass == C_STAT
816 && isym.n_type == T_NULL
817 && isym.n_value == 0))
818 abort ();
252b5132 819
1276aefa
NC
820 /* FIXME LATER: MSVC generates section names
821 like .text for comdats. Gas generates
822 names like .text$foo__Fv (in the case of a
823 function). See comment above for more. */
252b5132 824
1276aefa 825 if (strcmp (name, symname) != 0)
252b5132 826 abort ();
252b5132 827
1276aefa
NC
828 /* This is the section symbol. */
829 bfd_coff_swap_aux_in (abfd, (PTR) (esym + bfd_coff_symesz (abfd)),
830 isym.n_type, isym.n_sclass,
831 0, isym.n_numaux, (PTR) &aux);
832
833 target_name = strchr (name, '$');
834 if (target_name != NULL)
835 {
836 /* Gas mode. */
837 seen_state = 2;
838 /* Skip the `$'. */
839 target_name += 1;
840 }
841
842 /* FIXME: Microsoft uses NODUPLICATES and
843 ASSOCIATIVE, but gnu uses ANY and
844 SAME_SIZE. Unfortunately, gnu doesn't do
845 the comdat symbols right. So, until we can
846 fix it to do the right thing, we are
847 temporarily disabling comdats for the MS
848 types (they're used in DLLs and C++, but we
849 don't support *their* C++ libraries anyway
850 - DJ. */
851
852 /* Cygwin does not follow the MS style, and
853 uses ANY and SAME_SIZE where NODUPLICATES
854 and ASSOCIATIVE should be used. For
855 Interix, we just do the right thing up
856 front. */
857
858 switch (aux.x_scn.x_comdat)
859 {
860 case IMAGE_COMDAT_SELECT_NODUPLICATES:
e60b52c6 861#ifdef STRICT_PE_FORMAT
1276aefa 862 sec_flags |= SEC_LINK_DUPLICATES_ONE_ONLY;
ec0ef80e 863#else
1276aefa 864 sec_flags &= ~SEC_LINK_ONCE;
ec0ef80e 865#endif
1276aefa 866 break;
252b5132 867
1276aefa
NC
868 case IMAGE_COMDAT_SELECT_ANY:
869 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
870 break;
252b5132 871
1276aefa
NC
872 case IMAGE_COMDAT_SELECT_SAME_SIZE:
873 sec_flags |= SEC_LINK_DUPLICATES_SAME_SIZE;
874 break;
252b5132 875
1276aefa
NC
876 case IMAGE_COMDAT_SELECT_EXACT_MATCH:
877 /* Not yet fully implemented ??? */
878 sec_flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS;
879 break;
252b5132 880
1276aefa
NC
881 /* debug$S gets this case; other
882 implications ??? */
e5db213d 883
1276aefa
NC
884 /* There may be no symbol... we'll search
885 the whole table... Is this the right
886 place to play this game? Or should we do
887 it when reading it in. */
888 case IMAGE_COMDAT_SELECT_ASSOCIATIVE:
0717ebb7 889#ifdef STRICT_PE_FORMAT
1276aefa
NC
890 /* FIXME: This is not currently implemented. */
891 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
ec0ef80e 892#else
1276aefa 893 sec_flags &= ~SEC_LINK_ONCE;
ec0ef80e 894#endif
1276aefa 895 break;
e5db213d 896
1276aefa
NC
897 default: /* 0 means "no symbol" */
898 /* debug$F gets this case; other
899 implications ??? */
900 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
901 break;
902 }
903 }
904 break;
41733515 905
1276aefa
NC
906 case 2:
907 /* Gas mode: the first matching on partial name. */
252b5132 908
e5db213d
ILT
909#ifndef TARGET_UNDERSCORE
910#define TARGET_UNDERSCORE 0
911#endif
1276aefa
NC
912 /* Is this the name we're looking for? */
913 if (strcmp (target_name,
914 symname + (TARGET_UNDERSCORE ? 1 : 0)) != 0)
915 {
916 /* Not the name we're looking for */
917 esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd);
918 continue;
252b5132 919 }
1276aefa
NC
920 /* Fall through. */
921 case 1:
922 /* MSVC mode: the lexically second symbol (or
923 drop through from the above). */
924 {
925 char *newname;
dc810e39 926 bfd_size_type amt;
1276aefa 927
08da05b0 928 /* This must the second symbol with the
1276aefa
NC
929 section #. It is the actual symbol name.
930 Intel puts the two adjacent, but Alpha (at
931 least) spreads them out. */
932
dc810e39
AM
933 amt = sizeof (struct bfd_comdat_info);
934 section->comdat = bfd_alloc (abfd, amt);
1276aefa
NC
935 if (section->comdat == NULL)
936 abort ();
937
938 section->comdat->symbol =
939 (esym - esymstart) / bfd_coff_symesz (abfd);
940
dc810e39
AM
941 amt = strlen (symname) + 1;
942 newname = bfd_alloc (abfd, amt);
1276aefa
NC
943 if (newname == NULL)
944 abort ();
945
946 strcpy (newname, symname);
947 section->comdat->name = newname;
948 }
252b5132 949
1276aefa 950 goto breakloop;
252b5132
RH
951 }
952 }
1276aefa
NC
953
954 esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd);
955 }
956
957 breakloop:
958 return sec_flags;
959}
960
961
962/* The PE version; see above for the general comments.
963
964 Since to set the SEC_LINK_ONCE and associated flags, we have to
965 look at the symbol table anyway, we return the symbol table index
966 of the symbol being used as the COMDAT symbol. This is admittedly
967 ugly, but there's really nowhere else that we have access to the
968 required information. FIXME: Is the COMDAT symbol index used for
969 any purpose other than objdump? */
970
7c8ca0e4
NC
971static boolean
972styp_to_sec_flags (abfd, hdr, name, section, flags_ptr)
1276aefa
NC
973 bfd *abfd;
974 PTR hdr;
975 const char *name;
976 asection *section;
7c8ca0e4 977 flagword *flags_ptr;
1276aefa
NC
978{
979 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
980 long styp_flags = internal_s->s_flags;
981 flagword sec_flags;
7c8ca0e4 982 boolean result = true;
1276aefa
NC
983
984 /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */
985 sec_flags = SEC_READONLY;
986
987 /* Process each flag bit in styp_flags in turn. */
988 while (styp_flags)
989 {
990 long flag = styp_flags & - styp_flags;
991 char * unhandled = NULL;
dc810e39 992
1276aefa
NC
993 styp_flags &= ~ flag;
994
995 /* We infer from the distinct read/write/execute bits the settings
996 of some of the bfd flags; the actual values, should we need them,
997 are also in pei_section_data (abfd, section)->pe_flags. */
998
999 switch (flag)
1000 {
1001 case STYP_DSECT:
1002 unhandled = "STYP_DSECT";
1003 break;
1004 case STYP_GROUP:
1005 unhandled = "STYP_GROUP";
1006 break;
1007 case STYP_COPY:
1008 unhandled = "STYP_COPY";
1009 break;
1010 case STYP_OVER:
1011 unhandled = "STYP_OVER";
1012 break;
1013#ifdef SEC_NEVER_LOAD
1014 case STYP_NOLOAD:
1015 sec_flags |= SEC_NEVER_LOAD;
1016 break;
dc810e39 1017#endif
1276aefa
NC
1018 case IMAGE_SCN_MEM_READ:
1019 /* Ignored, assume it always to be true. */
1020 break;
1021 case IMAGE_SCN_TYPE_NO_PAD:
1022 /* Skip. */
1023 break;
1024 case IMAGE_SCN_LNK_OTHER:
1025 unhandled = "IMAGE_SCN_LNK_OTHER";
1026 break;
1027 case IMAGE_SCN_MEM_NOT_CACHED:
1028 unhandled = "IMAGE_SCN_MEM_NOT_CACHED";
1029 break;
1030 case IMAGE_SCN_MEM_NOT_PAGED:
1031 unhandled = "IMAGE_SCN_MEM_NOT_PAGED";
1032 break;
1033 case IMAGE_SCN_MEM_EXECUTE:
1034 sec_flags |= SEC_CODE;
1035 break;
1036 case IMAGE_SCN_MEM_WRITE:
1037 sec_flags &= ~ SEC_READONLY;
1038 break;
1039 case IMAGE_SCN_MEM_DISCARDABLE:
1040 sec_flags |= SEC_DEBUGGING;
1041 break;
1042 case IMAGE_SCN_MEM_SHARED:
1043 sec_flags |= SEC_SHARED;
1044 break;
1045 case IMAGE_SCN_LNK_REMOVE:
1046 sec_flags |= SEC_EXCLUDE;
1047 break;
1048 case IMAGE_SCN_CNT_CODE:
1049 sec_flags |= SEC_CODE | SEC_ALLOC | SEC_LOAD;
1050 break;
1051 case IMAGE_SCN_CNT_INITIALIZED_DATA:
1052 sec_flags |= SEC_DATA | SEC_ALLOC | SEC_LOAD;
1053 break;
1054 case IMAGE_SCN_CNT_UNINITIALIZED_DATA:
1055 sec_flags |= SEC_ALLOC;
1056 break;
1057 case IMAGE_SCN_LNK_INFO:
1058 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
1059 defined. coff_compute_section_file_positions uses
1060 COFF_PAGE_SIZE to ensure that the low order bits of the
1061 section VMA and the file offset match. If we don't know
1062 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
1063 and demand page loading of the file will fail. */
1064#ifdef COFF_PAGE_SIZE
1065 sec_flags |= SEC_DEBUGGING;
1066#endif
1067 break;
1068 case IMAGE_SCN_LNK_COMDAT:
1069 /* COMDAT gets very special treatment. */
1070 sec_flags = handle_COMDAT (abfd, sec_flags, hdr, name, section);
1071 break;
1072 default:
1073 /* Silently ignore for now. */
dc810e39 1074 break;
1276aefa
NC
1075 }
1076
7c8ca0e4 1077 /* If the section flag was not handled, report it here. */
1276aefa 1078 if (unhandled != NULL)
7c8ca0e4
NC
1079 {
1080 (*_bfd_error_handler)
1081 (_("%s (%s): Section flag %s (0x%x) ignored"),
8f615d07 1082 bfd_archive_filename (abfd), name, unhandled, flag);
7c8ca0e4
NC
1083 result = false;
1084 }
252b5132 1085 }
252b5132 1086
242eabea
ILT
1087#if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
1088 /* As a GNU extension, if the name begins with .gnu.linkonce, we
1089 only link a single copy of the section. This is used to support
1090 g++. g++ will emit each template expansion in its own section.
1091 The symbols will be defined as weak, so that multiple definitions
1092 are permitted. The GNU linker extension is to actually discard
1093 all but one of the sections. */
1094 if (strncmp (name, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0)
1095 sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
1096#endif
1097
7c8ca0e4
NC
1098 if (flags_ptr)
1099 * flags_ptr = sec_flags;
dc810e39 1100
7c8ca0e4 1101 return result;
252b5132
RH
1102}
1103
41733515
ILT
1104#endif /* COFF_WITH_PE */
1105
252b5132
RH
1106#define get_index(symbol) ((symbol)->udata.i)
1107
1108/*
1109INTERNAL_DEFINITION
1110 bfd_coff_backend_data
1111
1112CODE_FRAGMENT
1113
5d54c628
ILT
1114.{* COFF symbol classifications. *}
1115.
1116.enum coff_symbol_classification
1117.{
1118. {* Global symbol. *}
1119. COFF_SYMBOL_GLOBAL,
1120. {* Common symbol. *}
1121. COFF_SYMBOL_COMMON,
1122. {* Undefined symbol. *}
1123. COFF_SYMBOL_UNDEFINED,
1124. {* Local symbol. *}
1125. COFF_SYMBOL_LOCAL,
1126. {* PE section symbol. *}
1127. COFF_SYMBOL_PE_SECTION
1128.};
1129.
252b5132
RH
1130Special entry points for gdb to swap in coff symbol table parts:
1131.typedef struct
1132.{
dc810e39
AM
1133. void (*_bfd_coff_swap_aux_in)
1134. PARAMS ((bfd *, PTR, int, int, int, int, PTR));
252b5132 1135.
dc810e39
AM
1136. void (*_bfd_coff_swap_sym_in)
1137. PARAMS ((bfd *, PTR, PTR));
252b5132 1138.
dc810e39
AM
1139. void (*_bfd_coff_swap_lineno_in)
1140. PARAMS ((bfd *, PTR, PTR));
252b5132 1141.
dc810e39
AM
1142. unsigned int (*_bfd_coff_swap_aux_out)
1143. PARAMS ((bfd *, PTR, int, int, int, int, PTR));
252b5132 1144.
dc810e39
AM
1145. unsigned int (*_bfd_coff_swap_sym_out)
1146. PARAMS ((bfd *, PTR, PTR));
252b5132 1147.
dc810e39
AM
1148. unsigned int (*_bfd_coff_swap_lineno_out)
1149. PARAMS ((bfd *, PTR, PTR));
252b5132 1150.
dc810e39
AM
1151. unsigned int (*_bfd_coff_swap_reloc_out)
1152. PARAMS ((bfd *, PTR, PTR));
252b5132 1153.
dc810e39
AM
1154. unsigned int (*_bfd_coff_swap_filehdr_out)
1155. PARAMS ((bfd *, PTR, PTR));
252b5132 1156.
dc810e39
AM
1157. unsigned int (*_bfd_coff_swap_aouthdr_out)
1158. PARAMS ((bfd *, PTR, PTR));
252b5132 1159.
dc810e39
AM
1160. unsigned int (*_bfd_coff_swap_scnhdr_out)
1161. PARAMS ((bfd *, PTR, PTR));
252b5132 1162.
dc810e39
AM
1163. unsigned int _bfd_filhsz;
1164. unsigned int _bfd_aoutsz;
1165. unsigned int _bfd_scnhsz;
1166. unsigned int _bfd_symesz;
1167. unsigned int _bfd_auxesz;
1168. unsigned int _bfd_relsz;
1169. unsigned int _bfd_linesz;
1170. unsigned int _bfd_filnmlen;
1171. boolean _bfd_coff_long_filenames;
1172. boolean _bfd_coff_long_section_names;
1173. unsigned int _bfd_coff_default_section_alignment_power;
1174. boolean _bfd_coff_force_symnames_in_strings;
1175. unsigned int _bfd_coff_debug_string_prefix_length;
1176.
1177. void (*_bfd_coff_swap_filehdr_in)
1178. PARAMS ((bfd *, PTR, PTR));
1179.
1180. void (*_bfd_coff_swap_aouthdr_in)
1181. PARAMS ((bfd *, PTR, PTR));
1182.
1183. void (*_bfd_coff_swap_scnhdr_in)
1184. PARAMS ((bfd *, PTR, PTR));
1185.
1186. void (*_bfd_coff_swap_reloc_in)
1187. PARAMS ((bfd *abfd, PTR, PTR));
1188.
1189. boolean (*_bfd_coff_bad_format_hook)
1190. PARAMS ((bfd *, PTR));
1191.
1192. boolean (*_bfd_coff_set_arch_mach_hook)
1193. PARAMS ((bfd *, PTR));
1194.
1195. PTR (*_bfd_coff_mkobject_hook)
1196. PARAMS ((bfd *, PTR, PTR));
1197.
1198. boolean (*_bfd_styp_to_sec_flags_hook)
1199. PARAMS ((bfd *, PTR, const char *, asection *, flagword *));
1200.
1201. void (*_bfd_set_alignment_hook)
1202. PARAMS ((bfd *, asection *, PTR));
1203.
1204. boolean (*_bfd_coff_slurp_symbol_table)
1205. PARAMS ((bfd *));
1206.
1207. boolean (*_bfd_coff_symname_in_debug)
1208. PARAMS ((bfd *, struct internal_syment *));
1209.
1210. boolean (*_bfd_coff_pointerize_aux_hook)
1211. PARAMS ((bfd *, combined_entry_type *, combined_entry_type *,
1212. unsigned int, combined_entry_type *));
1213.
1214. boolean (*_bfd_coff_print_aux)
1215. PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *,
1216. combined_entry_type *, unsigned int));
1217.
1218. void (*_bfd_coff_reloc16_extra_cases)
1219. PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
1220. bfd_byte *, unsigned int *, unsigned int *));
1221.
1222. int (*_bfd_coff_reloc16_estimate)
1223. PARAMS ((bfd *, asection *, arelent *, unsigned int,
1224. struct bfd_link_info *));
1225.
1226. enum coff_symbol_classification (*_bfd_coff_classify_symbol)
1227. PARAMS ((bfd *, struct internal_syment *));
1228.
1229. boolean (*_bfd_coff_compute_section_file_positions)
1230. PARAMS ((bfd *));
252b5132 1231.
dc810e39
AM
1232. boolean (*_bfd_coff_start_final_link)
1233. PARAMS ((bfd *, struct bfd_link_info *));
1234.
1235. boolean (*_bfd_coff_relocate_section)
1236. PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
1237. struct internal_reloc *, struct internal_syment *, asection **));
1238.
1239. reloc_howto_type *(*_bfd_coff_rtype_to_howto)
1240. PARAMS ((bfd *, asection *, struct internal_reloc *,
1241. struct coff_link_hash_entry *, struct internal_syment *,
1242. bfd_vma *));
1243.
1244. boolean (*_bfd_coff_adjust_symndx)\
1245. PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *,
1246. struct internal_reloc *, boolean *));
1247.
1248. boolean (*_bfd_coff_link_add_one_symbol)
1249. PARAMS ((struct bfd_link_info *, bfd *, const char *, flagword,
1250. asection *, bfd_vma, const char *, boolean, boolean,
1251. struct bfd_link_hash_entry **));
1252.
1253. boolean (*_bfd_coff_link_output_has_begun)
1254. PARAMS ((bfd *, struct coff_final_link_info *));
1255.
1256. boolean (*_bfd_coff_final_link_postscript)
1257. PARAMS ((bfd *, struct coff_final_link_info *));
252b5132
RH
1258.
1259.} bfd_coff_backend_data;
1260.
dc810e39
AM
1261.#define coff_backend_info(abfd) \
1262. ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
252b5132
RH
1263.
1264.#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
dc810e39 1265. ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
252b5132
RH
1266.
1267.#define bfd_coff_swap_sym_in(a,e,i) \
dc810e39 1268. ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
252b5132
RH
1269.
1270.#define bfd_coff_swap_lineno_in(a,e,i) \
dc810e39 1271. ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
252b5132
RH
1272.
1273.#define bfd_coff_swap_reloc_out(abfd, i, o) \
dc810e39 1274. ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
252b5132
RH
1275.
1276.#define bfd_coff_swap_lineno_out(abfd, i, o) \
dc810e39 1277. ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
252b5132
RH
1278.
1279.#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
dc810e39 1280. ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
252b5132
RH
1281.
1282.#define bfd_coff_swap_sym_out(abfd, i,o) \
dc810e39 1283. ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
252b5132
RH
1284.
1285.#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
dc810e39 1286. ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
252b5132
RH
1287.
1288.#define bfd_coff_swap_filehdr_out(abfd, i,o) \
dc810e39 1289. ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
252b5132
RH
1290.
1291.#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
dc810e39 1292. ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
252b5132
RH
1293.
1294.#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1295.#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1296.#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1297.#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1298.#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1299.#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1300.#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
692b7d62 1301.#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
dc810e39
AM
1302.#define bfd_coff_long_filenames(abfd) \
1303. (coff_backend_info (abfd)->_bfd_coff_long_filenames)
252b5132 1304.#define bfd_coff_long_section_names(abfd) \
dc810e39 1305. (coff_backend_info (abfd)->_bfd_coff_long_section_names)
252b5132 1306.#define bfd_coff_default_section_alignment_power(abfd) \
dc810e39 1307. (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
252b5132 1308.#define bfd_coff_swap_filehdr_in(abfd, i,o) \
dc810e39 1309. ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
252b5132
RH
1310.
1311.#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
dc810e39 1312. ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
252b5132
RH
1313.
1314.#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
dc810e39 1315. ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
252b5132
RH
1316.
1317.#define bfd_coff_swap_reloc_in(abfd, i, o) \
dc810e39 1318. ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
252b5132
RH
1319.
1320.#define bfd_coff_bad_format_hook(abfd, filehdr) \
dc810e39 1321. ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
252b5132
RH
1322.
1323.#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
dc810e39 1324. ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
252b5132 1325.#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
dc810e39 1326. ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr))
252b5132 1327.
7c8ca0e4 1328.#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
dc810e39
AM
1329. ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1330. (abfd, scnhdr, name, section, flags_ptr))
252b5132
RH
1331.
1332.#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
dc810e39 1333. ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
252b5132
RH
1334.
1335.#define bfd_coff_slurp_symbol_table(abfd)\
dc810e39 1336. ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
252b5132
RH
1337.
1338.#define bfd_coff_symname_in_debug(abfd, sym)\
dc810e39 1339. ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
252b5132 1340.
2243c419 1341.#define bfd_coff_force_symnames_in_strings(abfd)\
dc810e39 1342. (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
2243c419
CP
1343.
1344.#define bfd_coff_debug_string_prefix_length(abfd)\
dc810e39 1345. (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
2243c419 1346.
252b5132 1347.#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
dc810e39
AM
1348. ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1349. (abfd, file, base, symbol, aux, indaux))
252b5132
RH
1350.
1351.#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\
dc810e39
AM
1352. ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1353. (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
252b5132
RH
1354.
1355.#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
dc810e39
AM
1356. ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1357. (abfd, section, reloc, shrink, link_info))
252b5132 1358.
5d54c628 1359.#define bfd_coff_classify_symbol(abfd, sym)\
dc810e39
AM
1360. ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1361. (abfd, sym))
252b5132
RH
1362.
1363.#define bfd_coff_compute_section_file_positions(abfd)\
dc810e39
AM
1364. ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1365. (abfd))
252b5132
RH
1366.
1367.#define bfd_coff_start_final_link(obfd, info)\
dc810e39
AM
1368. ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1369. (obfd, info))
252b5132 1370.#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
dc810e39
AM
1371. ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1372. (obfd, info, ibfd, o, con, rel, isyms, secs))
252b5132 1373.#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
dc810e39
AM
1374. ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1375. (abfd, sec, rel, h, sym, addendp))
252b5132 1376.#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
dc810e39
AM
1377. ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1378. (obfd, info, ibfd, sec, rel, adjustedp))
252b5132 1379.#define bfd_coff_link_add_one_symbol(info,abfd,name,flags,section,value,string,cp,coll,hashp)\
dc810e39
AM
1380. ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1381. (info, abfd, name, flags, section, value, string, cp, coll, hashp))
252b5132
RH
1382.
1383.#define bfd_coff_link_output_has_begun(a,p) \
dc810e39 1384. ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a,p))
252b5132 1385.#define bfd_coff_final_link_postscript(a,p) \
dc810e39 1386. ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a,p))
252b5132
RH
1387.
1388*/
1389
1390/* See whether the magic number matches. */
1391
1392static boolean
1393coff_bad_format_hook (abfd, filehdr)
5f771d47 1394 bfd * abfd ATTRIBUTE_UNUSED;
252b5132
RH
1395 PTR filehdr;
1396{
1397 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1398
1399 if (BADMAG (*internal_f))
1400 return false;
1401
1402 /* if the optional header is NULL or not the correct size then
1403 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1404 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1405 optional header is of a different size.
1406
1407 But the mips keeps extra stuff in it's opthdr, so dont check
1408 when doing that
1409 */
1410
1411#if defined(M88) || defined(I960)
6b3b007b 1412 if (internal_f->f_opthdr != 0 && bfd_coff_aoutsz (abfd) != internal_f->f_opthdr)
252b5132
RH
1413 return false;
1414#endif
1415
1416 return true;
1417}
1418
5dccc1dd
ILT
1419/* Check whether this section uses an alignment other than the
1420 default. */
1421
1422static void
1423coff_set_custom_section_alignment (abfd, section, alignment_table, table_size)
1424 bfd *abfd ATTRIBUTE_UNUSED;
1425 asection *section;
1426 const struct coff_section_alignment_entry *alignment_table;
1427 const unsigned int table_size;
1428{
1429 const unsigned int default_alignment = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
1430 unsigned int i;
1431
1432 for (i = 0; i < table_size; ++i)
1433 {
1434 const char *secname = bfd_get_section_name (abfd, section);
1435 if (alignment_table[i].comparison_length == (unsigned int) -1
1436 ? strcmp (alignment_table[i].name, secname) == 0
1437 : strncmp (alignment_table[i].name, secname,
1438 alignment_table[i].comparison_length) == 0)
1439 break;
1440 }
1441 if (i >= table_size)
1442 return;
1443
1444 if (alignment_table[i].default_alignment_min != COFF_ALIGNMENT_FIELD_EMPTY
1445 && default_alignment < alignment_table[i].default_alignment_min)
1446 return;
1447
1448 if (alignment_table[i].default_alignment_max != COFF_ALIGNMENT_FIELD_EMPTY
1e738b87
NC
1449#if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0
1450 && default_alignment > alignment_table[i].default_alignment_max
1451#endif
1452 )
5dccc1dd
ILT
1453 return;
1454
1455 section->alignment_power = alignment_table[i].alignment_power;
1456}
1457
1458/* Custom section alignment records. */
1459
1460static const struct coff_section_alignment_entry
1461coff_section_alignment_table[] =
1462{
1463#ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1464 COFF_SECTION_ALIGNMENT_ENTRIES,
1465#endif
1466 /* There must not be any gaps between .stabstr sections. */
1467 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1468 1, COFF_ALIGNMENT_FIELD_EMPTY, 0 },
1469 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1470 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1471 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 },
1472 /* Similarly for the .ctors and .dtors sections. */
1473 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1474 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 },
1475 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1476 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 }
1477};
1478
1479static const unsigned int coff_section_alignment_table_size =
1480 sizeof coff_section_alignment_table / sizeof coff_section_alignment_table[0];
1481
1482/* Initialize a section structure with information peculiar to this
1483 particular implementation of COFF. */
252b5132
RH
1484
1485static boolean
1486coff_new_section_hook (abfd, section)
60bcf0fa
NC
1487 bfd * abfd;
1488 asection * section;
252b5132
RH
1489{
1490 combined_entry_type *native;
dc810e39 1491 bfd_size_type amt;
252b5132
RH
1492
1493 section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
1494
1495#ifdef RS6000COFF_C
1496 if (xcoff_data (abfd)->text_align_power != 0
1497 && strcmp (bfd_get_section_name (abfd, section), ".text") == 0)
1498 section->alignment_power = xcoff_data (abfd)->text_align_power;
1499 if (xcoff_data (abfd)->data_align_power != 0
1500 && strcmp (bfd_get_section_name (abfd, section), ".data") == 0)
1501 section->alignment_power = xcoff_data (abfd)->data_align_power;
1502#endif
1503
1504 /* Allocate aux records for section symbols, to store size and
1505 related info.
1506
1507 @@ The 10 is a guess at a plausible maximum number of aux entries
1508 (but shouldn't be a constant). */
dc810e39
AM
1509 amt = sizeof (combined_entry_type) * 10;
1510 native = (combined_entry_type *) bfd_zalloc (abfd, amt);
252b5132
RH
1511 if (native == NULL)
1512 return false;
1513
1514 /* We don't need to set up n_name, n_value, or n_scnum in the native
1515 symbol information, since they'll be overriden by the BFD symbol
1516 anyhow. However, we do need to set the type and storage class,
1517 in case this symbol winds up getting written out. The value 0
1518 for n_numaux is already correct. */
1519
1520 native->u.syment.n_type = T_NULL;
1521 native->u.syment.n_sclass = C_STAT;
1522
1523 coffsymbol (section->symbol)->native = native;
1524
5dccc1dd
ILT
1525 coff_set_custom_section_alignment (abfd, section,
1526 coff_section_alignment_table,
1527 coff_section_alignment_table_size);
252b5132
RH
1528
1529 return true;
1530}
1531
1532#ifdef COFF_ALIGN_IN_SECTION_HEADER
1533
1534/* Set the alignment of a BFD section. */
1535
1536static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR));
1537
1538static void
1539coff_set_alignment_hook (abfd, section, scnhdr)
5f771d47 1540 bfd * abfd ATTRIBUTE_UNUSED;
252b5132
RH
1541 asection * section;
1542 PTR scnhdr;
1543{
1544 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1545 unsigned int i;
1546
1547#ifdef I960
1548 /* Extract ALIGN from 2**ALIGN stored in section header */
1549 for (i = 0; i < 32; i++)
1550 if ((1 << i) >= hdr->s_align)
1551 break;
1552#endif
1553#ifdef TIC80COFF
81635ce4 1554 /* TI tools puts the alignment power in bits 8-11 */
252b5132 1555 i = (hdr->s_flags >> 8) & 0xF ;
81635ce4
TW
1556#endif
1557#ifdef COFF_DECODE_ALIGNMENT
1558 i = COFF_DECODE_ALIGNMENT(hdr->s_flags);
252b5132
RH
1559#endif
1560 section->alignment_power = i;
b9af77f5
TW
1561
1562#ifdef coff_set_section_load_page
1563 coff_set_section_load_page (section, hdr->s_page);
1564#endif
252b5132
RH
1565}
1566
1567#else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1568#ifdef COFF_WITH_PE
1569
1570/* a couple of macros to help setting the alignment power field */
1571#define ALIGN_SET(field,x,y) \
1572 if (((field) & IMAGE_SCN_ALIGN_64BYTES) == x )\
1573 {\
1574 section->alignment_power = y;\
1575 }
1576
1577#define ELIFALIGN_SET(field,x,y) \
1578 else if (( (field) & IMAGE_SCN_ALIGN_64BYTES) == x ) \
1579 {\
1580 section->alignment_power = y;\
1581 }
1582
1583static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR));
1584
1585static void
1586coff_set_alignment_hook (abfd, section, scnhdr)
5f771d47 1587 bfd * abfd ATTRIBUTE_UNUSED;
252b5132
RH
1588 asection * section;
1589 PTR scnhdr;
1590{
1591 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
dc810e39 1592 bfd_size_type amt;
252b5132
RH
1593
1594 ALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_64BYTES, 6)
1595 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_32BYTES, 5)
1596 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_16BYTES, 4)
1597 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_8BYTES, 3)
1598 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_4BYTES, 2)
1599 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_2BYTES, 1)
1600 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_1BYTES, 0)
1601
252b5132 1602 /* In a PE image file, the s_paddr field holds the virtual size of a
8d3ad4e1
ILT
1603 section, while the s_size field holds the raw size. We also keep
1604 the original section flag value, since not every bit can be
1605 mapped onto a generic BFD section bit. */
1606 if (coff_section_data (abfd, section) == NULL)
252b5132 1607 {
dc810e39
AM
1608 amt = sizeof (struct coff_section_tdata);
1609 section->used_by_bfd = (PTR) bfd_zalloc (abfd, amt);
8d3ad4e1 1610 if (section->used_by_bfd == NULL)
252b5132 1611 {
8d3ad4e1
ILT
1612 /* FIXME: Return error. */
1613 abort ();
252b5132 1614 }
8d3ad4e1
ILT
1615 }
1616 if (pei_section_data (abfd, section) == NULL)
1617 {
dc810e39
AM
1618 amt = sizeof (struct pei_section_tdata);
1619 coff_section_data (abfd, section)->tdata = (PTR) bfd_zalloc (abfd, amt);
8d3ad4e1 1620 if (coff_section_data (abfd, section)->tdata == NULL)
252b5132 1621 {
8d3ad4e1
ILT
1622 /* FIXME: Return error. */
1623 abort ();
252b5132 1624 }
252b5132 1625 }
8d3ad4e1
ILT
1626 pei_section_data (abfd, section)->virt_size = hdr->s_paddr;
1627 pei_section_data (abfd, section)->pe_flags = hdr->s_flags;
252b5132 1628
9d8cefa9 1629 section->lma = hdr->s_vaddr;
3e4554a2
DD
1630
1631 /* check for extended relocs */
1632 if (hdr->s_flags & IMAGE_SCN_LNK_NRELOC_OVFL)
1633 {
1634 struct external_reloc dst;
1635 struct internal_reloc n;
dc810e39
AM
1636 file_ptr oldpos = bfd_tell (abfd);
1637 bfd_seek (abfd, (file_ptr) hdr->s_relptr, 0);
1638 if (bfd_bread ((PTR) &dst, (bfd_size_type) bfd_coff_relsz (abfd), abfd)
3e4554a2
DD
1639 != bfd_coff_relsz (abfd))
1640 return;
e60b52c6 1641
3e4554a2
DD
1642 coff_swap_reloc_in (abfd, &dst, &n);
1643 bfd_seek (abfd, oldpos, 0);
dc810e39 1644 section->reloc_count = hdr->s_nreloc = n.r_vaddr;
3e4554a2 1645 }
252b5132
RH
1646}
1647#undef ALIGN_SET
1648#undef ELIFALIGN_SET
1649
1650#else /* ! COFF_WITH_PE */
1651#ifdef RS6000COFF_C
1652
1653/* We grossly abuse this function to handle XCOFF overflow headers.
1654 When we see one, we correct the reloc and line number counts in the
1655 real header, and remove the section we just created. */
1656
1657static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR));
1658
1659static void
1660coff_set_alignment_hook (abfd, section, scnhdr)
1661 bfd *abfd;
1662 asection *section;
1663 PTR scnhdr;
1664{
1665 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1666 asection *real_sec;
1667 asection **ps;
1668
1669 if ((hdr->s_flags & STYP_OVRFLO) == 0)
1670 return;
1671
dc810e39 1672 real_sec = coff_section_from_bfd_index (abfd, (int) hdr->s_nreloc);
252b5132
RH
1673 if (real_sec == NULL)
1674 return;
1675
1676 real_sec->reloc_count = hdr->s_paddr;
1677 real_sec->lineno_count = hdr->s_vaddr;
1678
1679 for (ps = &abfd->sections; *ps != NULL; ps = &(*ps)->next)
1680 {
1681 if (*ps == section)
1682 {
1683 *ps = (*ps)->next;
1684 --abfd->section_count;
1685 break;
1686 }
1687 }
1688}
1689
1690#else /* ! RS6000COFF_C */
1691
1692#define coff_set_alignment_hook \
1693 ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void)
1694
1695#endif /* ! RS6000COFF_C */
1696#endif /* ! COFF_WITH_PE */
1697#endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
1698
1699#ifndef coff_mkobject
1700
1701static boolean coff_mkobject PARAMS ((bfd *));
1702
1703static boolean
1704coff_mkobject (abfd)
1705 bfd * abfd;
1706{
1707 coff_data_type *coff;
dc810e39 1708 bfd_size_type amt = sizeof (coff_data_type);
252b5132 1709
dc810e39 1710 abfd->tdata.coff_obj_data = (struct coff_tdata *) bfd_zalloc (abfd, amt);
252b5132
RH
1711 if (abfd->tdata.coff_obj_data == 0)
1712 return false;
1713 coff = coff_data (abfd);
1714 coff->symbols = (coff_symbol_type *) NULL;
1715 coff->conversion_table = (unsigned int *) NULL;
1716 coff->raw_syments = (struct coff_ptr_struct *) NULL;
1717 coff->relocbase = 0;
1718 coff->local_toc_sym_map = 0;
1719
1720/* make_abs_section(abfd);*/
1721
1722 return true;
1723}
1724#endif
1725
1726/* Create the COFF backend specific information. */
1727#ifndef coff_mkobject_hook
1728static PTR
1729coff_mkobject_hook (abfd, filehdr, aouthdr)
1730 bfd * abfd;
1731 PTR filehdr;
5f771d47 1732 PTR aouthdr ATTRIBUTE_UNUSED;
252b5132
RH
1733{
1734 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1735 coff_data_type *coff;
1736
1737 if (coff_mkobject (abfd) == false)
1738 return NULL;
1739
1740 coff = coff_data (abfd);
1741
1742 coff->sym_filepos = internal_f->f_symptr;
1743
1744 /* These members communicate important constants about the symbol
1745 table to GDB's symbol-reading code. These `constants'
1746 unfortunately vary among coff implementations... */
1747 coff->local_n_btmask = N_BTMASK;
1748 coff->local_n_btshft = N_BTSHFT;
1749 coff->local_n_tmask = N_TMASK;
1750 coff->local_n_tshift = N_TSHIFT;
6b3b007b
NC
1751 coff->local_symesz = bfd_coff_symesz (abfd);
1752 coff->local_auxesz = bfd_coff_auxesz (abfd);
1753 coff->local_linesz = bfd_coff_linesz (abfd);
252b5132 1754
1135238b
ILT
1755 coff->timestamp = internal_f->f_timdat;
1756
252b5132
RH
1757 obj_raw_syment_count (abfd) =
1758 obj_conv_table_size (abfd) =
1759 internal_f->f_nsyms;
1760
1761#ifdef RS6000COFF_C
1762 if ((internal_f->f_flags & F_SHROBJ) != 0)
1763 abfd->flags |= DYNAMIC;
6b3b007b 1764 if (aouthdr != NULL && internal_f->f_opthdr >= bfd_coff_aoutsz (abfd))
252b5132
RH
1765 {
1766 struct internal_aouthdr *internal_a =
1767 (struct internal_aouthdr *) aouthdr;
1768 struct xcoff_tdata *xcoff;
1769
1770 xcoff = xcoff_data (abfd);
a2fdf270
ND
1771# ifdef U803XTOCMAGIC
1772 xcoff->xcoff64 = internal_f->f_magic == U803XTOCMAGIC;
1773# else
1774 xcoff->xcoff64 = 0;
1775# endif
252b5132
RH
1776 xcoff->full_aouthdr = true;
1777 xcoff->toc = internal_a->o_toc;
1778 xcoff->sntoc = internal_a->o_sntoc;
1779 xcoff->snentry = internal_a->o_snentry;
1780 xcoff->text_align_power = internal_a->o_algntext;
1781 xcoff->data_align_power = internal_a->o_algndata;
1782 xcoff->modtype = internal_a->o_modtype;
1783 xcoff->cputype = internal_a->o_cputype;
1784 xcoff->maxdata = internal_a->o_maxdata;
1785 xcoff->maxstack = internal_a->o_maxstack;
1786 }
1787#endif
1788
e60b52c6 1789#ifdef ARM
252b5132
RH
1790 /* Set the flags field from the COFF header read in */
1791 if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags))
1792 coff->flags = 0;
1793#endif
e60b52c6 1794
4cfec37b
ILT
1795#ifdef COFF_WITH_PE
1796 /* FIXME: I'm not sure this is ever executed, since peicode.h
1797 defines coff_mkobject_hook. */
1798 if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0)
1799 abfd->flags |= HAS_DEBUG;
1800#endif
1801
252b5132
RH
1802 return (PTR) coff;
1803}
1804#endif
1805
1806/* Determine the machine architecture and type. FIXME: This is target
1807 dependent because the magic numbers are defined in the target
1808 dependent header files. But there is no particular need for this.
1809 If the magic numbers were moved to a separate file, this function
1810 would be target independent and would also be much more successful
1811 at linking together COFF files for different architectures. */
1812
1813static boolean
1814coff_set_arch_mach_hook (abfd, filehdr)
1815 bfd *abfd;
1816 PTR filehdr;
1817{
dc810e39 1818 unsigned long machine;
252b5132
RH
1819 enum bfd_architecture arch;
1820 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1821
1822 machine = 0;
1823 switch (internal_f->f_magic)
1824 {
1825#ifdef PPCMAGIC
1826 case PPCMAGIC:
1827 arch = bfd_arch_powerpc;
1828 machine = 0; /* what does this mean? (krk) */
e60b52c6 1829 break;
252b5132
RH
1830#endif
1831#ifdef I386MAGIC
1832 case I386MAGIC:
1833 case I386PTXMAGIC:
1834 case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler */
1835 case LYNXCOFFMAGIC: /* shadows the m68k Lynx number below, sigh */
1836 arch = bfd_arch_i386;
1837 machine = 0;
1838 break;
1839#endif
fac41780
JW
1840#ifdef IA64MAGIC
1841 case IA64MAGIC:
1842 arch = bfd_arch_ia64;
1843 machine = 0;
1844 break;
1845#endif
252b5132
RH
1846#ifdef A29K_MAGIC_BIG
1847 case A29K_MAGIC_BIG:
1848 case A29K_MAGIC_LITTLE:
1849 arch = bfd_arch_a29k;
1850 machine = 0;
1851 break;
1852#endif
1853#ifdef ARMMAGIC
1854 case ARMMAGIC:
17505c5c
NC
1855 case ARMPEMAGIC:
1856 case THUMBPEMAGIC:
252b5132
RH
1857 arch = bfd_arch_arm;
1858 switch (internal_f->f_flags & F_ARM_ARCHITECTURE_MASK)
1859 {
948221a8
NC
1860 case F_ARM_2: machine = bfd_mach_arm_2; break;
1861 case F_ARM_2a: machine = bfd_mach_arm_2a; break;
1862 case F_ARM_3: machine = bfd_mach_arm_3; break;
1863 default:
1864 case F_ARM_3M: machine = bfd_mach_arm_3M; break;
1865 case F_ARM_4: machine = bfd_mach_arm_4; break;
1866 case F_ARM_4T: machine = bfd_mach_arm_4T; break;
478d07d6 1867 case F_ARM_5: machine = bfd_mach_arm_5; break;
252b5132
RH
1868 }
1869 break;
1870#endif
1871#ifdef MC68MAGIC
1872 case MC68MAGIC:
1873 case M68MAGIC:
1874#ifdef MC68KBCSMAGIC
1875 case MC68KBCSMAGIC:
1876#endif
1877#ifdef APOLLOM68KMAGIC
1878 case APOLLOM68KMAGIC:
1879#endif
1880#ifdef LYNXCOFFMAGIC
1881 case LYNXCOFFMAGIC:
1882#endif
1883 arch = bfd_arch_m68k;
1884 machine = bfd_mach_m68020;
1885 break;
1886#endif
1887#ifdef MC88MAGIC
1888 case MC88MAGIC:
1889 case MC88DMAGIC:
1890 case MC88OMAGIC:
1891 arch = bfd_arch_m88k;
1892 machine = 88100;
1893 break;
1894#endif
1895#ifdef Z8KMAGIC
1896 case Z8KMAGIC:
1897 arch = bfd_arch_z8k;
1898 switch (internal_f->f_flags & F_MACHMASK)
1899 {
1900 case F_Z8001:
1901 machine = bfd_mach_z8001;
1902 break;
1903 case F_Z8002:
1904 machine = bfd_mach_z8002;
1905 break;
1906 default:
1907 return false;
1908 }
1909 break;
1910#endif
1911#ifdef I860
1912 case I860MAGIC:
1913 arch = bfd_arch_i860;
1914 break;
1915#endif
1916#ifdef I960
1917#ifdef I960ROMAGIC
1918 case I960ROMAGIC:
1919 case I960RWMAGIC:
1920 arch = bfd_arch_i960;
1921 switch (F_I960TYPE & internal_f->f_flags)
1922 {
1923 default:
1924 case F_I960CORE:
1925 machine = bfd_mach_i960_core;
1926 break;
1927 case F_I960KB:
1928 machine = bfd_mach_i960_kb_sb;
1929 break;
1930 case F_I960MC:
1931 machine = bfd_mach_i960_mc;
1932 break;
1933 case F_I960XA:
1934 machine = bfd_mach_i960_xa;
1935 break;
1936 case F_I960CA:
1937 machine = bfd_mach_i960_ca;
1938 break;
1939 case F_I960KA:
1940 machine = bfd_mach_i960_ka_sa;
1941 break;
1942 case F_I960JX:
1943 machine = bfd_mach_i960_jx;
1944 break;
1945 case F_I960HX:
1946 machine = bfd_mach_i960_hx;
1947 break;
1948 }
1949 break;
1950#endif
1951#endif
1952
1953#ifdef RS6000COFF_C
7f6d05e8 1954#ifdef XCOFF64
c6664dfb 1955 case U803XTOCMAGIC:
7f6d05e8 1956#else
252b5132
RH
1957 case U802ROMAGIC:
1958 case U802WRMAGIC:
1959 case U802TOCMAGIC:
7f6d05e8 1960#endif
252b5132
RH
1961 {
1962 int cputype;
1963
1964 if (xcoff_data (abfd)->cputype != -1)
1965 cputype = xcoff_data (abfd)->cputype & 0xff;
1966 else
1967 {
1968 /* We did not get a value from the a.out header. If the
1969 file has not been stripped, we may be able to get the
1970 architecture information from the first symbol, if it
1971 is a .file symbol. */
1972 if (obj_raw_syment_count (abfd) == 0)
1973 cputype = 0;
1974 else
1975 {
5ea1af0d 1976 bfd_byte *buf;
252b5132 1977 struct internal_syment sym;
dc810e39 1978 bfd_size_type amt = bfd_coff_symesz (abfd);
252b5132 1979
dc810e39 1980 buf = (bfd_byte *) bfd_malloc (amt);
252b5132 1981 if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
dc810e39 1982 || bfd_bread (buf, amt, abfd) != amt)
5ea1af0d 1983 {
2fca4467 1984 free (buf);
5ea1af0d
GK
1985 return false;
1986 }
7f6d05e8 1987 bfd_coff_swap_sym_in (abfd, (PTR) buf, (PTR) &sym);
252b5132
RH
1988 if (sym.n_sclass == C_FILE)
1989 cputype = sym.n_type & 0xff;
1990 else
1991 cputype = 0;
2fca4467 1992 free (buf);
252b5132
RH
1993 }
1994 }
1995
1996 /* FIXME: We don't handle all cases here. */
1997 switch (cputype)
1998 {
1999 default:
2000 case 0:
beb1bf64
TR
2001 arch = bfd_xcoff_architecture (abfd);
2002 machine = bfd_xcoff_machine (abfd);
252b5132
RH
2003 break;
2004
2005 case 1:
2006 arch = bfd_arch_powerpc;
87f33987 2007 machine = bfd_mach_ppc_601;
252b5132
RH
2008 break;
2009 case 2: /* 64 bit PowerPC */
2010 arch = bfd_arch_powerpc;
87f33987 2011 machine = bfd_mach_ppc_620;
252b5132
RH
2012 break;
2013 case 3:
2014 arch = bfd_arch_powerpc;
87f33987 2015 machine = bfd_mach_ppc;
252b5132
RH
2016 break;
2017 case 4:
2018 arch = bfd_arch_rs6000;
87f33987 2019 machine = bfd_mach_rs6k;
252b5132
RH
2020 break;
2021 }
2022 }
2023 break;
2024#endif
2025
2026#ifdef WE32KMAGIC
2027 case WE32KMAGIC:
2028 arch = bfd_arch_we32k;
2029 machine = 0;
2030 break;
2031#endif
2032
2033#ifdef H8300MAGIC
2034 case H8300MAGIC:
2035 arch = bfd_arch_h8300;
2036 machine = bfd_mach_h8300;
2037 /* !! FIXME this probably isn't the right place for this */
2038 abfd->flags |= BFD_IS_RELAXABLE;
2039 break;
2040#endif
2041
2042#ifdef H8300HMAGIC
2043 case H8300HMAGIC:
2044 arch = bfd_arch_h8300;
2045 machine = bfd_mach_h8300h;
2046 /* !! FIXME this probably isn't the right place for this */
2047 abfd->flags |= BFD_IS_RELAXABLE;
2048 break;
2049#endif
2050
2051#ifdef H8300SMAGIC
2052 case H8300SMAGIC:
2053 arch = bfd_arch_h8300;
2054 machine = bfd_mach_h8300s;
2055 /* !! FIXME this probably isn't the right place for this */
2056 abfd->flags |= BFD_IS_RELAXABLE;
2057 break;
2058#endif
2059
2060#ifdef SH_ARCH_MAGIC_BIG
2061 case SH_ARCH_MAGIC_BIG:
2062 case SH_ARCH_MAGIC_LITTLE:
17505c5c
NC
2063#ifdef COFF_WITH_PE
2064 case SH_ARCH_MAGIC_WINCE:
2065#endif
252b5132
RH
2066 arch = bfd_arch_sh;
2067 machine = 0;
2068 break;
2069#endif
2070
17505c5c
NC
2071#ifdef MIPS_ARCH_MAGIC_WINCE
2072 case MIPS_ARCH_MAGIC_WINCE:
2073 arch = bfd_arch_mips;
2074 machine = 0;
2075 break;
2076#endif
2077
252b5132
RH
2078#ifdef H8500MAGIC
2079 case H8500MAGIC:
2080 arch = bfd_arch_h8500;
2081 machine = 0;
2082 break;
2083#endif
2084
2085#ifdef SPARCMAGIC
2086 case SPARCMAGIC:
2087#ifdef LYNXCOFFMAGIC
2088 case LYNXCOFFMAGIC:
2089#endif
2090 arch = bfd_arch_sparc;
2091 machine = 0;
2092 break;
2093#endif
2094
2095#ifdef TIC30MAGIC
2096 case TIC30MAGIC:
2097 arch = bfd_arch_tic30;
2098 break;
2099#endif
2100
81635ce4
TW
2101#ifdef TICOFF0MAGIC
2102#ifdef TICOFF_TARGET_ARCH
2103 /* this TI COFF section should be used by all new TI COFF v0 targets */
2104 case TICOFF0MAGIC:
2105 arch = TICOFF_TARGET_ARCH;
2106 break;
2107#endif
2108#endif
2109
2110#ifdef TICOFF1MAGIC
2111 /* this TI COFF section should be used by all new TI COFF v1/2 targets */
2112 /* TI COFF1 and COFF2 use the target_id field to specify which arch */
2113 case TICOFF1MAGIC:
2114 case TICOFF2MAGIC:
2115 switch (internal_f->f_target_id)
2116 {
2117#ifdef TI_TARGET_ID
2118 case TI_TARGET_ID:
2119 arch = TICOFF_TARGET_ARCH;
2120 break;
2121#endif
2122 default:
4af1d5f6 2123 arch = bfd_arch_obscure;
81635ce4 2124 (*_bfd_error_handler)
e60b52c6 2125 (_("Unrecognized TI COFF target id '0x%x'"),
81635ce4
TW
2126 internal_f->f_target_id);
2127 break;
2128 }
2129 break;
2130#endif
2131
252b5132
RH
2132#ifdef TIC80_ARCH_MAGIC
2133 case TIC80_ARCH_MAGIC:
2134 arch = bfd_arch_tic80;
2135 break;
2136#endif
2137
2138#ifdef MCOREMAGIC
2139 case MCOREMAGIC:
2140 arch = bfd_arch_mcore;
2141 break;
2142#endif
2143 default: /* Unreadable input file type */
2144 arch = bfd_arch_obscure;
2145 break;
2146 }
2147
2148 bfd_default_set_arch_mach (abfd, arch, machine);
2149 return true;
2150}
2151
2152#ifdef SYMNAME_IN_DEBUG
2153
2154static boolean symname_in_debug_hook
2155 PARAMS ((bfd *, struct internal_syment *));
2156
2157static boolean
2158symname_in_debug_hook (abfd, sym)
5f771d47 2159 bfd * abfd ATTRIBUTE_UNUSED;
252b5132
RH
2160 struct internal_syment *sym;
2161{
2162 return SYMNAME_IN_DEBUG (sym) ? true : false;
2163}
2164
2165#else
2166
2167#define symname_in_debug_hook \
2168 (boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false
2169
2170#endif
2171
2172#ifdef RS6000COFF_C
2173
7f6d05e8
CP
2174#ifdef XCOFF64
2175#define FORCE_SYMNAMES_IN_STRINGS
2176#endif
a022216b 2177
252b5132
RH
2178/* Handle the csect auxent of a C_EXT or C_HIDEXT symbol. */
2179
2180static boolean coff_pointerize_aux_hook
2181 PARAMS ((bfd *, combined_entry_type *, combined_entry_type *,
2182 unsigned int, combined_entry_type *));
2183
2184/*ARGSUSED*/
2185static boolean
2186coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux)
5f771d47 2187 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH
2188 combined_entry_type *table_base;
2189 combined_entry_type *symbol;
2190 unsigned int indaux;
2191 combined_entry_type *aux;
2192{
2193 int class = symbol->u.syment.n_sclass;
2194
2195 if ((class == C_EXT || class == C_HIDEXT)
2196 && indaux + 1 == symbol->u.syment.n_numaux)
2197 {
2198 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD)
2199 {
2200 aux->u.auxent.x_csect.x_scnlen.p =
2201 table_base + aux->u.auxent.x_csect.x_scnlen.l;
2202 aux->fix_scnlen = 1;
2203 }
2204
2205 /* Return true to indicate that the caller should not do any
2206 further work on this auxent. */
2207 return true;
2208 }
2209
2210 /* Return false to indicate that this auxent should be handled by
2211 the caller. */
2212 return false;
2213}
2214
2215#else
2216#ifdef I960
2217
2218/* We don't want to pointerize bal entries. */
2219
2220static boolean coff_pointerize_aux_hook
2221 PARAMS ((bfd *, combined_entry_type *, combined_entry_type *,
2222 unsigned int, combined_entry_type *));
2223
2224/*ARGSUSED*/
2225static boolean
2226coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux)
5f771d47
ILT
2227 bfd *abfd ATTRIBUTE_UNUSED;
2228 combined_entry_type *table_base ATTRIBUTE_UNUSED;
252b5132
RH
2229 combined_entry_type *symbol;
2230 unsigned int indaux;
5f771d47 2231 combined_entry_type *aux ATTRIBUTE_UNUSED;
252b5132
RH
2232{
2233 /* Return true if we don't want to pointerize this aux entry, which
2234 is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */
2235 return (indaux == 1
2236 && (symbol->u.syment.n_sclass == C_LEAFPROC
2237 || symbol->u.syment.n_sclass == C_LEAFSTAT
2238 || symbol->u.syment.n_sclass == C_LEAFEXT));
2239}
2240
2241#else /* ! I960 */
2242
2243#define coff_pointerize_aux_hook 0
2244
2245#endif /* ! I960 */
2246#endif /* ! RS6000COFF_C */
2247
2248/* Print an aux entry. This returns true if it has printed it. */
2249
2250static boolean coff_print_aux
2251 PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *,
2252 combined_entry_type *, unsigned int));
2253
2254static boolean
2255coff_print_aux (abfd, file, table_base, symbol, aux, indaux)
5f771d47
ILT
2256 bfd *abfd ATTRIBUTE_UNUSED;
2257 FILE *file ATTRIBUTE_UNUSED;
2258 combined_entry_type *table_base ATTRIBUTE_UNUSED;
2259 combined_entry_type *symbol ATTRIBUTE_UNUSED;
2260 combined_entry_type *aux ATTRIBUTE_UNUSED;
2261 unsigned int indaux ATTRIBUTE_UNUSED;
252b5132
RH
2262{
2263#ifdef RS6000COFF_C
2264 if ((symbol->u.syment.n_sclass == C_EXT
2265 || symbol->u.syment.n_sclass == C_HIDEXT)
2266 && indaux + 1 == symbol->u.syment.n_numaux)
2267 {
2268 /* This is a csect entry. */
2269 fprintf (file, "AUX ");
2270 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) != XTY_LD)
2271 {
2272 BFD_ASSERT (! aux->fix_scnlen);
dc810e39 2273#ifdef XCOFF64
beb1bf64
TR
2274 fprintf (file, "val %5lld", aux->u.auxent.x_csect.x_scnlen.l);
2275#else
2276 fprintf (file, "val %5ld", (long) aux->u.auxent.x_csect.x_scnlen.l);
2277#endif
252b5132
RH
2278 }
2279 else
2280 {
2281 fprintf (file, "indx ");
2282 if (! aux->fix_scnlen)
beb1bf64
TR
2283#ifdef XCOFF64
2284 fprintf (file, "%4lld", aux->u.auxent.x_csect.x_scnlen.l);
2285#else
2286 fprintf (file, "%4ld", (long) aux->u.auxent.x_csect.x_scnlen.l);
2287#endif
252b5132
RH
2288 else
2289 fprintf (file, "%4ld",
2290 (long) (aux->u.auxent.x_csect.x_scnlen.p - table_base));
2291 }
2292 fprintf (file,
2293 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2294 aux->u.auxent.x_csect.x_parmhash,
2295 (unsigned int) aux->u.auxent.x_csect.x_snhash,
2296 SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp),
2297 SMTYP_ALIGN (aux->u.auxent.x_csect.x_smtyp),
2298 (unsigned int) aux->u.auxent.x_csect.x_smclas,
2299 aux->u.auxent.x_csect.x_stab,
2300 (unsigned int) aux->u.auxent.x_csect.x_snstab);
2301 return true;
2302 }
2303#endif
2304
2305 /* Return false to indicate that no special action was taken. */
2306 return false;
2307}
2308
2309/*
2310SUBSUBSECTION
2311 Writing relocations
2312
2313 To write relocations, the back end steps though the
2314 canonical relocation table and create an
2315 @code{internal_reloc}. The symbol index to use is removed from
2316 the @code{offset} field in the symbol table supplied. The
2317 address comes directly from the sum of the section base
2318 address and the relocation offset; the type is dug directly
2319 from the howto field. Then the @code{internal_reloc} is
2320 swapped into the shape of an @code{external_reloc} and written
2321 out to disk.
2322
2323*/
2324
2325#ifdef TARG_AUX
2326
2327static int compare_arelent_ptr PARAMS ((const PTR, const PTR));
2328
2329/* AUX's ld wants relocations to be sorted */
2330static int
2331compare_arelent_ptr (x, y)
2332 const PTR x;
2333 const PTR y;
2334{
2335 const arelent **a = (const arelent **) x;
2336 const arelent **b = (const arelent **) y;
2337 bfd_size_type aadr = (*a)->address;
2338 bfd_size_type badr = (*b)->address;
2339
2340 return (aadr < badr ? -1 : badr < aadr ? 1 : 0);
2341}
2342
2343#endif /* TARG_AUX */
2344
2345static boolean
2346coff_write_relocs (abfd, first_undef)
2347 bfd * abfd;
2348 int first_undef;
2349{
2350 asection *s;
2351
2352 for (s = abfd->sections; s != (asection *) NULL; s = s->next)
2353 {
2354 unsigned int i;
2355 struct external_reloc dst;
2356 arelent **p;
2357
2358#ifndef TARG_AUX
2359 p = s->orelocation;
2360#else
dc810e39
AM
2361 {
2362 /* sort relocations before we write them out */
2363 bfd_size_type amt;
2364
2365 amt = s->reloc_count;
2366 amt *= sizeof (arelent *);
2367 p = (arelent **) bfd_malloc (amt);
2368 if (p == NULL && s->reloc_count > 0)
2369 return false;
2370 memcpy (p, s->orelocation, (size_t) amt);
2371 qsort (p, s->reloc_count, sizeof (arelent *), compare_arelent_ptr);
2372 }
252b5132
RH
2373#endif
2374
2375 if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0)
2376 return false;
3e4554a2
DD
2377
2378#ifdef COFF_WITH_PE
2379 if (s->reloc_count > 0xffff)
2380 {
2381 /* encode real count here as first reloc */
2382 struct internal_reloc n;
2383 memset ((PTR) & n, 0, sizeof (n));
2384 /* add one to count *this* reloc (grr) */
2385 n.r_vaddr = s->reloc_count + 1;
2386 coff_swap_reloc_out (abfd, &n, &dst);
dc810e39
AM
2387 if (bfd_bwrite ((PTR) & dst, (bfd_size_type) bfd_coff_relsz (abfd),
2388 abfd) != bfd_coff_relsz (abfd))
3e4554a2
DD
2389 return false;
2390 }
2391#endif
2392
252b5132
RH
2393 for (i = 0; i < s->reloc_count; i++)
2394 {
2395 struct internal_reloc n;
2396 arelent *q = p[i];
2397 memset ((PTR) & n, 0, sizeof (n));
2398
2399 /* Now we've renumbered the symbols we know where the
2400 undefined symbols live in the table. Check the reloc
2401 entries for symbols who's output bfd isn't the right one.
2402 This is because the symbol was undefined (which means
2403 that all the pointers are never made to point to the same
2404 place). This is a bad thing,'cause the symbols attached
2405 to the output bfd are indexed, so that the relocation
2406 entries know which symbol index they point to. So we
e60b52c6 2407 have to look up the output symbol here. */
252b5132
RH
2408
2409 if (q->sym_ptr_ptr[0]->the_bfd != abfd)
2410 {
dc810e39 2411 int j;
252b5132
RH
2412 const char *sname = q->sym_ptr_ptr[0]->name;
2413 asymbol **outsyms = abfd->outsymbols;
dc810e39 2414 for (j = first_undef; outsyms[j]; j++)
252b5132 2415 {
dc810e39 2416 const char *intable = outsyms[j]->name;
252b5132
RH
2417 if (strcmp (intable, sname) == 0) {
2418 /* got a hit, so repoint the reloc */
dc810e39 2419 q->sym_ptr_ptr = outsyms + j;
252b5132
RH
2420 break;
2421 }
2422 }
2423 }
2424
2425 n.r_vaddr = q->address + s->vma;
2426
2427#ifdef R_IHCONST
2428 /* The 29k const/consth reloc pair is a real kludge. The consth
2429 part doesn't have a symbol; it has an offset. So rebuilt
2430 that here. */
2431 if (q->howto->type == R_IHCONST)
2432 n.r_symndx = q->addend;
2433 else
2434#endif
2435 if (q->sym_ptr_ptr)
2436 {
6c784c9a
TW
2437#ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P
2438 if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q,s))
2439#else
252b5132 2440 if (q->sym_ptr_ptr == bfd_abs_section_ptr->symbol_ptr_ptr)
6c784c9a 2441#endif
252b5132
RH
2442 /* This is a relocation relative to the absolute symbol. */
2443 n.r_symndx = -1;
2444 else
2445 {
2446 n.r_symndx = get_index ((*(q->sym_ptr_ptr)));
2447 /* Take notice if the symbol reloc points to a symbol
2448 we don't have in our symbol table. What should we
2449 do for this?? */
2450 if (n.r_symndx > obj_conv_table_size (abfd))
2451 abort ();
2452 }
2453 }
2454
2455#ifdef SWAP_OUT_RELOC_OFFSET
2456 n.r_offset = q->addend;
2457#endif
2458
2459#ifdef SELECT_RELOC
2460 /* Work out reloc type from what is required */
2461 SELECT_RELOC (n, q->howto);
2462#else
2463 n.r_type = q->howto->type;
2464#endif
2465 coff_swap_reloc_out (abfd, &n, &dst);
dc810e39
AM
2466 if (bfd_bwrite ((PTR) & dst, (bfd_size_type) bfd_coff_relsz (abfd),
2467 abfd) != bfd_coff_relsz (abfd))
252b5132
RH
2468 return false;
2469 }
2470
2471#ifdef TARG_AUX
2472 if (p != NULL)
2473 free (p);
2474#endif
2475 }
2476
2477 return true;
2478}
2479
2480/* Set flags and magic number of a coff file from architecture and machine
2481 type. Result is true if we can represent the arch&type, false if not. */
2482
2483static boolean
2484coff_set_flags (abfd, magicp, flagsp)
2485 bfd * abfd;
5f771d47
ILT
2486 unsigned int *magicp ATTRIBUTE_UNUSED;
2487 unsigned short *flagsp ATTRIBUTE_UNUSED;
252b5132
RH
2488{
2489 switch (bfd_get_arch (abfd))
2490 {
2491#ifdef Z8KMAGIC
2492 case bfd_arch_z8k:
2493 *magicp = Z8KMAGIC;
2494 switch (bfd_get_mach (abfd))
2495 {
2496 case bfd_mach_z8001:
2497 *flagsp = F_Z8001;
2498 break;
2499 case bfd_mach_z8002:
2500 *flagsp = F_Z8002;
2501 break;
2502 default:
2503 return false;
2504 }
2505 return true;
2506#endif
2507#ifdef I960ROMAGIC
2508
2509 case bfd_arch_i960:
2510
2511 {
2512 unsigned flags;
2513 *magicp = I960ROMAGIC;
2514 /*
2515 ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC :
2516 I960RWMAGIC); FIXME???
2517 */
2518 switch (bfd_get_mach (abfd))
2519 {
2520 case bfd_mach_i960_core:
2521 flags = F_I960CORE;
2522 break;
2523 case bfd_mach_i960_kb_sb:
2524 flags = F_I960KB;
2525 break;
2526 case bfd_mach_i960_mc:
2527 flags = F_I960MC;
2528 break;
2529 case bfd_mach_i960_xa:
2530 flags = F_I960XA;
2531 break;
2532 case bfd_mach_i960_ca:
2533 flags = F_I960CA;
2534 break;
2535 case bfd_mach_i960_ka_sa:
2536 flags = F_I960KA;
2537 break;
2538 case bfd_mach_i960_jx:
2539 flags = F_I960JX;
2540 break;
2541 case bfd_mach_i960_hx:
2542 flags = F_I960HX;
2543 break;
2544 default:
2545 return false;
2546 }
2547 *flagsp = flags;
2548 return true;
2549 }
2550 break;
2551#endif
2552
2553#ifdef TIC30MAGIC
2554 case bfd_arch_tic30:
2555 *magicp = TIC30MAGIC;
2556 return true;
2557#endif
81635ce4
TW
2558
2559#ifdef TICOFF_DEFAULT_MAGIC
2560 case TICOFF_TARGET_ARCH:
2561 /* if there's no indication of which version we want, use the default */
2562 if (!abfd->xvec )
2563 *magicp = TICOFF_DEFAULT_MAGIC;
2564 else
2565 {
2566 /* we may want to output in a different COFF version */
2567 switch (abfd->xvec->name[4])
2568 {
2569 case '0':
2570 *magicp = TICOFF0MAGIC;
2571 break;
2572 case '1':
2573 *magicp = TICOFF1MAGIC;
2574 break;
2575 case '2':
2576 *magicp = TICOFF2MAGIC;
2577 break;
2578 default:
2579 return false;
2580 }
2581 }
2582 return true;
2583#endif
2584
252b5132
RH
2585#ifdef TIC80_ARCH_MAGIC
2586 case bfd_arch_tic80:
2587 *magicp = TIC80_ARCH_MAGIC;
2588 return true;
2589#endif
2590#ifdef ARMMAGIC
2591 case bfd_arch_arm:
17505c5c
NC
2592#ifdef ARM_WINCE
2593 * magicp = ARMPEMAGIC;
2594#else
252b5132 2595 * magicp = ARMMAGIC;
17505c5c 2596#endif
252b5132
RH
2597 * flagsp = 0;
2598 if (APCS_SET (abfd))
2599 {
2600 if (APCS_26_FLAG (abfd))
2601 * flagsp |= F_APCS26;
e60b52c6 2602
252b5132
RH
2603 if (APCS_FLOAT_FLAG (abfd))
2604 * flagsp |= F_APCS_FLOAT;
e60b52c6 2605
252b5132 2606 if (PIC_FLAG (abfd))
948221a8 2607 * flagsp |= F_PIC;
252b5132
RH
2608 }
2609 if (INTERWORK_SET (abfd) && INTERWORK_FLAG (abfd))
2610 * flagsp |= F_INTERWORK;
2611 switch (bfd_get_mach (abfd))
2612 {
2613 case bfd_mach_arm_2: * flagsp |= F_ARM_2; break;
2614 case bfd_mach_arm_2a: * flagsp |= F_ARM_2a; break;
2615 case bfd_mach_arm_3: * flagsp |= F_ARM_3; break;
2616 case bfd_mach_arm_3M: * flagsp |= F_ARM_3M; break;
2617 case bfd_mach_arm_4: * flagsp |= F_ARM_4; break;
2618 case bfd_mach_arm_4T: * flagsp |= F_ARM_4T; break;
478d07d6 2619 case bfd_mach_arm_5: * flagsp |= F_ARM_5; break;
077b8428
NC
2620 /* FIXME: we do not have F_ARM vaues greater than F_ARM_5. */
2621 case bfd_mach_arm_5T: * flagsp |= F_ARM_5; break;
2622 case bfd_mach_arm_5TE: * flagsp |= F_ARM_5; break;
2623 case bfd_mach_arm_XScale: * flagsp |= F_ARM_5; break;
252b5132
RH
2624 }
2625 return true;
2626#endif
2627#ifdef PPCMAGIC
2628 case bfd_arch_powerpc:
2629 *magicp = PPCMAGIC;
2630 return true;
2631 break;
2632#endif
2633#ifdef I386MAGIC
2634 case bfd_arch_i386:
2635 *magicp = I386MAGIC;
2636#ifdef LYNXOS
e60b52c6 2637 /* Just overwrite the usual value if we're doing Lynx. */
252b5132
RH
2638 *magicp = LYNXCOFFMAGIC;
2639#endif
2640 return true;
2641 break;
2642#endif
2643#ifdef I860MAGIC
2644 case bfd_arch_i860:
2645 *magicp = I860MAGIC;
2646 return true;
2647 break;
2648#endif
fac41780
JW
2649#ifdef IA64MAGIC
2650 case bfd_arch_ia64:
2651 *magicp = IA64MAGIC;
2652 return true;
2653 break;
2654#endif
252b5132
RH
2655#ifdef MC68MAGIC
2656 case bfd_arch_m68k:
2657#ifdef APOLLOM68KMAGIC
2658 *magicp = APOLLO_COFF_VERSION_NUMBER;
2659#else
2660 /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */
2661#ifdef NAMES_HAVE_UNDERSCORE
2662 *magicp = MC68KBCSMAGIC;
2663#else
2664 *magicp = MC68MAGIC;
2665#endif
2666#endif
2667#ifdef LYNXOS
e60b52c6 2668 /* Just overwrite the usual value if we're doing Lynx. */
252b5132
RH
2669 *magicp = LYNXCOFFMAGIC;
2670#endif
2671 return true;
2672 break;
2673#endif
2674
2675#ifdef MC88MAGIC
2676 case bfd_arch_m88k:
2677 *magicp = MC88OMAGIC;
2678 return true;
2679 break;
2680#endif
2681#ifdef H8300MAGIC
2682 case bfd_arch_h8300:
2683 switch (bfd_get_mach (abfd))
2684 {
2685 case bfd_mach_h8300:
2686 *magicp = H8300MAGIC;
2687 return true;
2688 case bfd_mach_h8300h:
2689 *magicp = H8300HMAGIC;
2690 return true;
2691 case bfd_mach_h8300s:
2692 *magicp = H8300SMAGIC;
2693 return true;
2694 }
2695 break;
2696#endif
2697
2698#ifdef SH_ARCH_MAGIC_BIG
2699 case bfd_arch_sh:
17505c5c
NC
2700#ifdef COFF_IMAGE_WITH_PE
2701 *magicp = SH_ARCH_MAGIC_WINCE;
2702#else
252b5132
RH
2703 if (bfd_big_endian (abfd))
2704 *magicp = SH_ARCH_MAGIC_BIG;
2705 else
2706 *magicp = SH_ARCH_MAGIC_LITTLE;
17505c5c
NC
2707#endif
2708 return true;
2709 break;
2710#endif
2711
2712#ifdef MIPS_ARCH_MAGIC_WINCE
2713 case bfd_arch_mips:
2714 *magicp = MIPS_ARCH_MAGIC_WINCE;
252b5132
RH
2715 return true;
2716 break;
2717#endif
2718
2719#ifdef SPARCMAGIC
2720 case bfd_arch_sparc:
2721 *magicp = SPARCMAGIC;
2722#ifdef LYNXOS
e60b52c6 2723 /* Just overwrite the usual value if we're doing Lynx. */
252b5132
RH
2724 *magicp = LYNXCOFFMAGIC;
2725#endif
2726 return true;
2727 break;
2728#endif
2729
2730#ifdef H8500MAGIC
2731 case bfd_arch_h8500:
2732 *magicp = H8500MAGIC;
2733 return true;
2734 break;
2735#endif
2736#ifdef A29K_MAGIC_BIG
2737 case bfd_arch_a29k:
2738 if (bfd_big_endian (abfd))
2739 *magicp = A29K_MAGIC_BIG;
2740 else
2741 *magicp = A29K_MAGIC_LITTLE;
2742 return true;
2743 break;
2744#endif
2745
2746#ifdef WE32KMAGIC
2747 case bfd_arch_we32k:
2748 *magicp = WE32KMAGIC;
2749 return true;
2750 break;
2751#endif
2752
7f6d05e8 2753#ifdef RS6000COFF_C
252b5132
RH
2754 case bfd_arch_rs6000:
2755#ifndef PPCMAGIC
2756 case bfd_arch_powerpc:
2757#endif
7f6d05e8 2758#ifdef XCOFF64
87f33987
ND
2759 if (bfd_get_mach (abfd) == bfd_mach_ppc_620
2760 && !strncmp (abfd->xvec->name,"aix", 3))
e60b52c6 2761 *magicp = U803XTOCMAGIC;
7f6d05e8
CP
2762 else
2763#else
e60b52c6 2764 *magicp = U802TOCMAGIC;
7f6d05e8 2765#endif
252b5132
RH
2766 return true;
2767 break;
2768#endif
2769
2770#ifdef MCOREMAGIC
2771 case bfd_arch_mcore:
2772 * magicp = MCOREMAGIC;
2773 return true;
2774#endif
e60b52c6 2775
371e71b8
NC
2776#ifdef W65MAGIC
2777 case bfd_arch_w65:
2778 *magicp = W65MAGIC;
2779 return true;
2780#endif
2781
2782 default: /* Unknown architecture. */
2783 /* Fall through to "return false" below, to avoid
2784 "statement never reached" errors on the one below. */
252b5132
RH
2785 break;
2786 }
2787
2788 return false;
2789}
2790
252b5132
RH
2791static boolean
2792coff_set_arch_mach (abfd, arch, machine)
2793 bfd * abfd;
2794 enum bfd_architecture arch;
2795 unsigned long machine;
2796{
2797 unsigned dummy1;
2798 unsigned short dummy2;
2799
2800 if (! bfd_default_set_arch_mach (abfd, arch, machine))
2801 return false;
2802
2803 if (arch != bfd_arch_unknown &&
2804 coff_set_flags (abfd, &dummy1, &dummy2) != true)
2805 return false; /* We can't represent this type */
2806
e60b52c6 2807 return true; /* We're easy ... */
252b5132
RH
2808}
2809
75cc7189
ILT
2810#ifdef COFF_IMAGE_WITH_PE
2811
2812/* This is used to sort sections by VMA, as required by PE image
2813 files. */
2814
2815static int sort_by_secaddr PARAMS ((const PTR, const PTR));
2816
2817static int
2818sort_by_secaddr (arg1, arg2)
2819 const PTR arg1;
2820 const PTR arg2;
2821{
2822 const asection *a = *(const asection **) arg1;
2823 const asection *b = *(const asection **) arg2;
2824
2825 if (a->vma < b->vma)
2826 return -1;
2827 else if (a->vma > b->vma)
2828 return 1;
2829 else
2830 return 0;
2831}
2832
2833#endif /* COFF_IMAGE_WITH_PE */
252b5132 2834
e60b52c6 2835/* Calculate the file position for each section. */
252b5132
RH
2836
2837#ifndef I960
2838#define ALIGN_SECTIONS_IN_FILE
2839#endif
81635ce4 2840#if defined(TIC80COFF) || defined(TICOFF)
252b5132
RH
2841#undef ALIGN_SECTIONS_IN_FILE
2842#endif
2843
2844static boolean
2845coff_compute_section_file_positions (abfd)
2846 bfd * abfd;
2847{
2848 asection *current;
2849 asection *previous = (asection *) NULL;
6b3b007b 2850 file_ptr sofar = bfd_coff_filhsz (abfd);
252b5132 2851 boolean align_adjust;
252b5132
RH
2852#ifdef ALIGN_SECTIONS_IN_FILE
2853 file_ptr old_sofar;
2854#endif
2855
2856#ifdef RS6000COFF_C
2857 /* On XCOFF, if we have symbols, set up the .debug section. */
2858 if (bfd_get_symcount (abfd) > 0)
2859 {
2860 bfd_size_type sz;
2861 bfd_size_type i, symcount;
2862 asymbol **symp;
2863
2864 sz = 0;
2865 symcount = bfd_get_symcount (abfd);
2866 for (symp = abfd->outsymbols, i = 0; i < symcount; symp++, i++)
2867 {
2868 coff_symbol_type *cf;
2869
2870 cf = coff_symbol_from (abfd, *symp);
2871 if (cf != NULL
2872 && cf->native != NULL
2873 && SYMNAME_IN_DEBUG (&cf->native->u.syment))
2874 {
2875 size_t len;
2876
2877 len = strlen (bfd_asymbol_name (*symp));
7f6d05e8
CP
2878 if (len > SYMNMLEN || bfd_coff_force_symnames_in_strings (abfd))
2879 sz += len + 1 + bfd_coff_debug_string_prefix_length (abfd);
252b5132
RH
2880 }
2881 }
2882 if (sz > 0)
2883 {
2884 asection *dsec;
2885
2886 dsec = bfd_make_section_old_way (abfd, ".debug");
2887 if (dsec == NULL)
2888 abort ();
2889 dsec->_raw_size = sz;
2890 dsec->flags |= SEC_HAS_CONTENTS;
2891 }
2892 }
2893#endif
2894
2895#ifdef COFF_IMAGE_WITH_PE
2896 int page_size;
e60b52c6 2897 if (coff_data (abfd)->link_info)
252b5132
RH
2898 {
2899 page_size = pe_data (abfd)->pe_opthdr.FileAlignment;
2900 }
2901 else
2902 page_size = PE_DEF_FILE_ALIGNMENT;
2903#else
2904#ifdef COFF_PAGE_SIZE
2905 int page_size = COFF_PAGE_SIZE;
2906#endif
2907#endif
2908
2909 if (bfd_get_start_address (abfd))
2910 {
2911 /* A start address may have been added to the original file. In this
2912 case it will need an optional header to record it. */
2913 abfd->flags |= EXEC_P;
2914 }
2915
2916 if (abfd->flags & EXEC_P)
6b3b007b 2917 sofar += bfd_coff_aoutsz (abfd);
252b5132
RH
2918#ifdef RS6000COFF_C
2919 else if (xcoff_data (abfd)->full_aouthdr)
6b3b007b 2920 sofar += bfd_coff_aoutsz (abfd);
252b5132
RH
2921 else
2922 sofar += SMALL_AOUTSZ;
2923#endif
2924
6b3b007b 2925 sofar += abfd->section_count * bfd_coff_scnhsz (abfd);
252b5132
RH
2926
2927#ifdef RS6000COFF_C
2928 /* XCOFF handles overflows in the reloc and line number count fields
2929 by allocating a new section header to hold the correct counts. */
2930 for (current = abfd->sections; current != NULL; current = current->next)
2931 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
6b3b007b 2932 sofar += bfd_coff_scnhsz (abfd);
252b5132
RH
2933#endif
2934
75cc7189
ILT
2935#ifdef COFF_IMAGE_WITH_PE
2936 {
2937 /* PE requires the sections to be in memory order when listed in
2938 the section headers. It also does not like empty loadable
2939 sections. The sections apparently do not have to be in the
2940 right order in the image file itself, but we do need to get the
2941 target_index values right. */
2942
dc810e39 2943 unsigned int count;
75cc7189 2944 asection **section_list;
dc810e39 2945 unsigned int i;
75cc7189 2946 int target_index;
dc810e39 2947 bfd_size_type amt;
75cc7189
ILT
2948
2949 count = 0;
2950 for (current = abfd->sections; current != NULL; current = current->next)
2951 ++count;
2952
2953 /* We allocate an extra cell to simplify the final loop. */
dc810e39
AM
2954 amt = sizeof (struct asection *) * (count + 1);
2955 section_list = bfd_malloc (amt);
75cc7189
ILT
2956 if (section_list == NULL)
2957 return false;
2958
2959 i = 0;
2960 for (current = abfd->sections; current != NULL; current = current->next)
2961 {
2962 section_list[i] = current;
2963 ++i;
2964 }
2965 section_list[i] = NULL;
2966
2967 qsort (section_list, count, sizeof (asection *), sort_by_secaddr);
2968
2969 /* Rethread the linked list into sorted order; at the same time,
2970 assign target_index values. */
2971 target_index = 1;
2972 abfd->sections = section_list[0];
2973 for (i = 0; i < count; i++)
2974 {
2975 current = section_list[i];
2976 current->next = section_list[i + 1];
2977
2978 /* Later, if the section has zero size, we'll be throwing it
2979 away, so we don't want to number it now. Note that having
2980 a zero size and having real contents are different
2981 concepts: .bss has no contents, but (usually) non-zero
2982 size. */
2983 if (current->_raw_size == 0)
2984 {
2985 /* Discard. However, it still might have (valid) symbols
2986 in it, so arbitrarily set it to section 1 (indexing is
2987 1-based here; usually .text). __end__ and other
2988 contents of .endsection really have this happen.
2989 FIXME: This seems somewhat dubious. */
2990 current->target_index = 1;
2991 }
2992 else
2993 current->target_index = target_index++;
2994 }
2995
2fca4467 2996 free (section_list);
75cc7189
ILT
2997 }
2998#else /* ! COFF_IMAGE_WITH_PE */
2999 {
3000 /* Set the target_index field. */
3001 int target_index;
3002
3003 target_index = 1;
3004 for (current = abfd->sections; current != NULL; current = current->next)
3005 current->target_index = target_index++;
3006 }
3007#endif /* ! COFF_IMAGE_WITH_PE */
3008
252b5132 3009 align_adjust = false;
75cc7189 3010 for (current = abfd->sections;
252b5132 3011 current != (asection *) NULL;
75cc7189 3012 current = current->next)
252b5132
RH
3013 {
3014#ifdef COFF_IMAGE_WITH_PE
75cc7189
ILT
3015 /* With PE we have to pad each section to be a multiple of its
3016 page size too, and remember both sizes. */
3017 if (coff_section_data (abfd, current) == NULL)
252b5132 3018 {
dc810e39
AM
3019 bfd_size_type amt = sizeof (struct coff_section_tdata);
3020 current->used_by_bfd = (PTR) bfd_zalloc (abfd, amt);
75cc7189
ILT
3021 if (current->used_by_bfd == NULL)
3022 return false;
252b5132 3023 }
75cc7189
ILT
3024 if (pei_section_data (abfd, current) == NULL)
3025 {
dc810e39
AM
3026 bfd_size_type amt = sizeof (struct pei_section_tdata);
3027 coff_section_data (abfd, current)->tdata
3028 = (PTR) bfd_zalloc (abfd, amt);
75cc7189
ILT
3029 if (coff_section_data (abfd, current)->tdata == NULL)
3030 return false;
3031 }
3032 if (pei_section_data (abfd, current)->virt_size == 0)
3033 pei_section_data (abfd, current)->virt_size = current->_raw_size;
252b5132
RH
3034#endif
3035
75cc7189 3036 /* Only deal with sections which have contents. */
252b5132
RH
3037 if (!(current->flags & SEC_HAS_CONTENTS))
3038 continue;
3039
75cc7189
ILT
3040#ifdef COFF_IMAGE_WITH_PE
3041 /* Make sure we skip empty sections in a PE image. */
3042 if (current->_raw_size == 0)
3043 continue;
3044#endif
3045
252b5132
RH
3046 /* Align the sections in the file to the same boundary on
3047 which they are aligned in virtual memory. I960 doesn't
3048 do this (FIXME) so we can stay in sync with Intel. 960
e60b52c6 3049 doesn't yet page from files... */
252b5132
RH
3050#ifdef ALIGN_SECTIONS_IN_FILE
3051 if ((abfd->flags & EXEC_P) != 0)
3052 {
3053 /* make sure this section is aligned on the right boundary - by
3054 padding the previous section up if necessary */
3055
3056 old_sofar = sofar;
3057 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3058 if (previous != (asection *) NULL)
3059 {
3060 previous->_raw_size += sofar - old_sofar;
3061 }
3062 }
3063
3064#endif
3065
3066 /* In demand paged files the low order bits of the file offset
3067 must match the low order bits of the virtual address. */
3068#ifdef COFF_PAGE_SIZE
3069 if ((abfd->flags & D_PAGED) != 0
3070 && (current->flags & SEC_ALLOC) != 0)
3071 sofar += (current->vma - sofar) % page_size;
3072#endif
3073 current->filepos = sofar;
3074
3075#ifdef COFF_IMAGE_WITH_PE
75cc7189 3076 /* Set the padded size. */
252b5132
RH
3077 current->_raw_size = (current->_raw_size + page_size -1) & -page_size;
3078#endif
3079
3080 sofar += current->_raw_size;
3081
3082#ifdef ALIGN_SECTIONS_IN_FILE
3083 /* make sure that this section is of the right size too */
3084 if ((abfd->flags & EXEC_P) == 0)
3085 {
3086 bfd_size_type old_size;
3087
3088 old_size = current->_raw_size;
3089 current->_raw_size = BFD_ALIGN (current->_raw_size,
3090 1 << current->alignment_power);
3091 align_adjust = current->_raw_size != old_size;
3092 sofar += current->_raw_size - old_size;
3093 }
3094 else
3095 {
3096 old_sofar = sofar;
3097 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3098 align_adjust = sofar != old_sofar;
3099 current->_raw_size += sofar - old_sofar;
3100 }
3101#endif
3102
3103#ifdef COFF_IMAGE_WITH_PE
3104 /* For PE we need to make sure we pad out to the aligned
3105 _raw_size, in case the caller only writes out data to the
3106 unaligned _raw_size. */
3107 if (pei_section_data (abfd, current)->virt_size < current->_raw_size)
3108 align_adjust = true;
3109#endif
3110
3111#ifdef _LIB
3112 /* Force .lib sections to start at zero. The vma is then
3113 incremented in coff_set_section_contents. This is right for
3114 SVR3.2. */
3115 if (strcmp (current->name, _LIB) == 0)
3116 bfd_set_section_vma (abfd, current, 0);
3117#endif
3118
3119 previous = current;
3120 }
3121
3122 /* It is now safe to write to the output file. If we needed an
3123 alignment adjustment for the last section, then make sure that
3124 there is a byte at offset sofar. If there are no symbols and no
3125 relocs, then nothing follows the last section. If we don't force
3126 the last byte out, then the file may appear to be truncated. */
3127 if (align_adjust)
3128 {
3129 bfd_byte b;
3130
3131 b = 0;
3132 if (bfd_seek (abfd, sofar - 1, SEEK_SET) != 0
dc810e39 3133 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
252b5132
RH
3134 return false;
3135 }
3136
3137 /* Make sure the relocations are aligned. We don't need to make
3138 sure that this byte exists, because it will only matter if there
3139 really are relocs. */
3140 sofar = BFD_ALIGN (sofar, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER);
3141
3142 obj_relocbase (abfd) = sofar;
3143 abfd->output_has_begun = true;
3144
3145 return true;
3146}
3147
3148#if 0
3149
3150/* This can never work, because it is called too late--after the
3151 section positions have been set. I can't figure out what it is
3152 for, so I am going to disable it--Ian Taylor 20 March 1996. */
3153
3154/* If .file, .text, .data, .bss symbols are missing, add them. */
3155/* @@ Should we only be adding missing symbols, or overriding the aux
3156 values for existing section symbols? */
3157static boolean
3158coff_add_missing_symbols (abfd)
3159 bfd *abfd;
3160{
3161 unsigned int nsyms = bfd_get_symcount (abfd);
3162 asymbol **sympp = abfd->outsymbols;
3163 asymbol **sympp2;
3164 unsigned int i;
3165 int need_text = 1, need_data = 1, need_bss = 1, need_file = 1;
dc810e39 3166 bfd_size_type amt;
252b5132
RH
3167
3168 for (i = 0; i < nsyms; i++)
3169 {
3170 coff_symbol_type *csym = coff_symbol_from (abfd, sympp[i]);
dc810e39 3171 const char *name;
252b5132
RH
3172 if (csym)
3173 {
3174 /* only do this if there is a coff representation of the input
3175 symbol */
3176 if (csym->native && csym->native->u.syment.n_sclass == C_FILE)
3177 {
3178 need_file = 0;
3179 continue;
3180 }
3181 name = csym->symbol.name;
3182 if (!name)
3183 continue;
3184 if (!strcmp (name, _TEXT))
3185 need_text = 0;
3186#ifdef APOLLO_M68
3187 else if (!strcmp (name, ".wtext"))
3188 need_text = 0;
3189#endif
3190 else if (!strcmp (name, _DATA))
3191 need_data = 0;
3192 else if (!strcmp (name, _BSS))
3193 need_bss = 0;
3194 }
3195 }
3196 /* Now i == bfd_get_symcount (abfd). */
3197 /* @@ For now, don't deal with .file symbol. */
3198 need_file = 0;
3199
3200 if (!need_text && !need_data && !need_bss && !need_file)
3201 return true;
3202 nsyms += need_text + need_data + need_bss + need_file;
dc810e39
AM
3203 amt = nsyms;
3204 amt *= sizeof (asymbol *);
3205 sympp2 = (asymbol **) bfd_alloc (abfd, amt);
252b5132
RH
3206 if (!sympp2)
3207 return false;
3208 memcpy (sympp2, sympp, i * sizeof (asymbol *));
3209 if (need_file)
3210 {
3211 /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */
3212 abort ();
3213 }
3214 if (need_text)
3215 sympp2[i++] = coff_section_symbol (abfd, _TEXT);
3216 if (need_data)
3217 sympp2[i++] = coff_section_symbol (abfd, _DATA);
3218 if (need_bss)
3219 sympp2[i++] = coff_section_symbol (abfd, _BSS);
3220 BFD_ASSERT (i == nsyms);
3221 bfd_set_symtab (abfd, sympp2, nsyms);
3222 return true;
3223}
3224
3225#endif /* 0 */
3226
3227/* SUPPRESS 558 */
3228/* SUPPRESS 529 */
3229static boolean
3230coff_write_object_contents (abfd)
3231 bfd * abfd;
3232{
3233 asection *current;
3234 boolean hasrelocs = false;
3235 boolean haslinno = false;
4cfec37b 3236 boolean hasdebug = false;
252b5132
RH
3237 file_ptr scn_base;
3238 file_ptr reloc_base;
3239 file_ptr lineno_base;
3240 file_ptr sym_base;
3e4554a2 3241 unsigned long reloc_size = 0, reloc_count = 0;
252b5132
RH
3242 unsigned long lnno_size = 0;
3243 boolean long_section_names;
3244 asection *text_sec = NULL;
3245 asection *data_sec = NULL;
3246 asection *bss_sec = NULL;
3247 struct internal_filehdr internal_f;
3248 struct internal_aouthdr internal_a;
3249#ifdef COFF_LONG_SECTION_NAMES
3250 size_t string_size = STRING_SIZE_SIZE;
3251#endif
3252
3253 bfd_set_error (bfd_error_system_call);
3254
3255 /* Make a pass through the symbol table to count line number entries and
3256 put them into the correct asections */
3257
6b3b007b 3258 lnno_size = coff_count_linenumbers (abfd) * bfd_coff_linesz (abfd);
252b5132
RH
3259
3260 if (abfd->output_has_begun == false)
3261 {
3262 if (! coff_compute_section_file_positions (abfd))
3263 return false;
3264 }
3265
3266 reloc_base = obj_relocbase (abfd);
3267
3268 /* Work out the size of the reloc and linno areas */
3269
3270 for (current = abfd->sections; current != NULL; current =
3271 current->next)
3e4554a2
DD
3272 {
3273#ifdef COFF_WITH_PE
3274 /* we store the actual reloc count in the first reloc's addr */
3275 if (current->reloc_count > 0xffff)
3276 reloc_count ++;
3277#endif
3278 reloc_count += current->reloc_count;
3279 }
3280
3281 reloc_size = reloc_count * bfd_coff_relsz (abfd);
252b5132
RH
3282
3283 lineno_base = reloc_base + reloc_size;
3284 sym_base = lineno_base + lnno_size;
3285
3286 /* Indicate in each section->line_filepos its actual file address */
3287 for (current = abfd->sections; current != NULL; current =
3288 current->next)
3289 {
3290 if (current->lineno_count)
3291 {
3292 current->line_filepos = lineno_base;
3293 current->moving_line_filepos = lineno_base;
6b3b007b 3294 lineno_base += current->lineno_count * bfd_coff_linesz (abfd);
252b5132
RH
3295 }
3296 else
3297 {
3298 current->line_filepos = 0;
3299 }
3300 if (current->reloc_count)
3301 {
3302 current->rel_filepos = reloc_base;
6b3b007b 3303 reloc_base += current->reloc_count * bfd_coff_relsz (abfd);
3e4554a2
DD
3304#ifdef COFF_WITH_PE
3305 /* extra reloc to hold real count */
3306 if (current->reloc_count > 0xffff)
3307 reloc_base += bfd_coff_relsz (abfd);
3308#endif
252b5132
RH
3309 }
3310 else
3311 {
3312 current->rel_filepos = 0;
3313 }
3314 }
3315
3316 /* Write section headers to the file. */
3317 internal_f.f_nscns = 0;
3318
3319 if ((abfd->flags & EXEC_P) != 0)
6b3b007b 3320 scn_base = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd);
252b5132
RH
3321 else
3322 {
6b3b007b 3323 scn_base = bfd_coff_filhsz (abfd);
252b5132 3324#ifdef RS6000COFF_C
dc810e39 3325#ifndef XCOFF64
252b5132 3326 if (xcoff_data (abfd)->full_aouthdr)
6b3b007b 3327 scn_base += bfd_coff_aoutsz (abfd);
252b5132
RH
3328 else
3329 scn_base += SMALL_AOUTSZ;
dc810e39 3330#endif
252b5132
RH
3331#endif
3332 }
3333
3334 if (bfd_seek (abfd, scn_base, SEEK_SET) != 0)
3335 return false;
3336
3337 long_section_names = false;
3338 for (current = abfd->sections;
3339 current != NULL;
3340 current = current->next)
3341 {
3342 struct internal_scnhdr section;
4cfec37b 3343 boolean is_reloc_section = false;
252b5132
RH
3344
3345#ifdef COFF_IMAGE_WITH_PE
3346 if (strcmp (current->name, ".reloc") == 0)
3347 {
4cfec37b
ILT
3348 is_reloc_section = true;
3349 hasrelocs = true;
252b5132
RH
3350 pe_data (abfd)->has_reloc_section = 1;
3351 }
3352#endif
3353
252b5132
RH
3354 internal_f.f_nscns++;
3355
3356 strncpy (section.s_name, current->name, SCNNMLEN);
3357
3358#ifdef COFF_LONG_SECTION_NAMES
3359 /* Handle long section names as in PE. This must be compatible
00692651 3360 with the code in coff_write_symbols and _bfd_coff_final_link. */
252b5132
RH
3361 {
3362 size_t len;
3363
3364 len = strlen (current->name);
3365 if (len > SCNNMLEN)
3366 {
3367 memset (section.s_name, 0, SCNNMLEN);
3368 sprintf (section.s_name, "/%lu", (unsigned long) string_size);
3369 string_size += len + 1;
3370 long_section_names = true;
3371 }
3372 }
3373#endif
3374
3375#ifdef _LIB
3376 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3377 Ian Taylor <ian@cygnus.com>. */
3378 if (strcmp (current->name, _LIB) == 0)
3379 section.s_vaddr = 0;
3380 else
3381#endif
3382 section.s_vaddr = current->vma;
3383 section.s_paddr = current->lma;
3384 section.s_size = current->_raw_size;
b9af77f5 3385#ifdef coff_get_section_load_page
e60b52c6 3386 section.s_page = coff_get_section_load_page (current);
b9af77f5 3387#endif
252b5132
RH
3388
3389#ifdef COFF_WITH_PE
3390 section.s_paddr = 0;
3391#endif
3392#ifdef COFF_IMAGE_WITH_PE
3393 /* Reminder: s_paddr holds the virtual size of the section. */
3394 if (coff_section_data (abfd, current) != NULL
3395 && pei_section_data (abfd, current) != NULL)
3396 section.s_paddr = pei_section_data (abfd, current)->virt_size;
3397 else
3398 section.s_paddr = 0;
3399#endif
3400
3401 /*
3402 If this section has no size or is unloadable then the scnptr
3403 will be 0 too
3404 */
3405 if (current->_raw_size == 0 ||
3406 (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
3407 {
3408 section.s_scnptr = 0;
3409 }
3410 else
3411 {
3412 section.s_scnptr = current->filepos;
3413 }
3414 section.s_relptr = current->rel_filepos;
3415 section.s_lnnoptr = current->line_filepos;
3416 section.s_nreloc = current->reloc_count;
3417 section.s_nlnno = current->lineno_count;
79207490
ILT
3418#ifndef COFF_IMAGE_WITH_PE
3419 /* In PEI, relocs come in the .reloc section. */
252b5132
RH
3420 if (current->reloc_count != 0)
3421 hasrelocs = true;
79207490 3422#endif
252b5132
RH
3423 if (current->lineno_count != 0)
3424 haslinno = true;
4cfec37b
ILT
3425 if ((current->flags & SEC_DEBUGGING) != 0
3426 && ! is_reloc_section)
3427 hasdebug = true;
252b5132 3428
60bcf0fa 3429#ifdef RS6000COFF_C
7f6d05e8 3430#ifndef XCOFF64
252b5132
RH
3431 /* Indicate the use of an XCOFF overflow section header. */
3432 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3433 {
3434 section.s_nreloc = 0xffff;
3435 section.s_nlnno = 0xffff;
3436 }
7f6d05e8 3437#endif
252b5132
RH
3438#endif
3439
3440 section.s_flags = sec_to_styp_flags (current->name, current->flags);
3441
3442 if (!strcmp (current->name, _TEXT))
3443 {
3444 text_sec = current;
3445 }
3446 else if (!strcmp (current->name, _DATA))
3447 {
3448 data_sec = current;
3449 }
3450 else if (!strcmp (current->name, _BSS))
3451 {
3452 bss_sec = current;
3453 }
3454
3455#ifdef I960
3456 section.s_align = (current->alignment_power
3457 ? 1 << current->alignment_power
3458 : 0);
81635ce4 3459#endif
e60b52c6 3460#ifdef TIC80COFF
81635ce4 3461 /* TI COFF puts the alignment power in bits 8-11 of the flags */
252b5132
RH
3462 section.s_flags |= (current->alignment_power & 0xF) << 8;
3463#endif
81635ce4
TW
3464#ifdef COFF_ENCODE_ALIGNMENT
3465 COFF_ENCODE_ALIGNMENT(section, current->alignment_power);
252b5132
RH
3466#endif
3467
3468#ifdef COFF_IMAGE_WITH_PE
00692651
ILT
3469 /* Suppress output of the sections if they are null. ld
3470 includes the bss and data sections even if there is no size
3471 assigned to them. NT loader doesn't like it if these section
3472 headers are included if the sections themselves are not
3473 needed. See also coff_compute_section_file_positions. */
252b5132
RH
3474 if (section.s_size == 0)
3475 internal_f.f_nscns--;
3476 else
3477#endif
3478 {
3479 SCNHDR buff;
dc810e39
AM
3480 bfd_size_type amt = bfd_coff_scnhsz (abfd);
3481
252b5132 3482 if (coff_swap_scnhdr_out (abfd, &section, &buff) == 0
dc810e39 3483 || bfd_bwrite ((PTR) &buff, amt, abfd) != amt)
252b5132
RH
3484 return false;
3485 }
3486
3487#ifdef COFF_WITH_PE
3488 /* PE stores COMDAT section information in the symbol table. If
3489 this section is supposed to have some COMDAT info, track down
3490 the symbol in the symbol table and modify it. */
3491 if ((current->flags & SEC_LINK_ONCE) != 0)
3492 {
3493 unsigned int i, count;
3494 asymbol **psym;
3495 coff_symbol_type *csym = NULL;
3496 asymbol **psymsec;
3497
3498 psymsec = NULL;
3499 count = bfd_get_symcount (abfd);
3500 for (i = 0, psym = abfd->outsymbols; i < count; i++, psym++)
3501 {
3502 if ((*psym)->section != current)
3503 continue;
3504
3505 /* Remember the location of the first symbol in this
3506 section. */
3507 if (psymsec == NULL)
3508 psymsec = psym;
3509
3510 /* See if this is the section symbol. */
3511 if (strcmp ((*psym)->name, current->name) == 0)
3512 {
3513 csym = coff_symbol_from (abfd, *psym);
3514 if (csym == NULL
3515 || csym->native == NULL
3516 || csym->native->u.syment.n_numaux < 1
3517 || csym->native->u.syment.n_sclass != C_STAT
3518 || csym->native->u.syment.n_type != T_NULL)
3519 continue;
3520
3521 /* Here *PSYM is the section symbol for CURRENT. */
3522
3523 break;
3524 }
3525 }
3526
3527 /* Did we find it?
3528 Note that we might not if we're converting the file from
3529 some other object file format. */
3530 if (i < count)
3531 {
3532 combined_entry_type *aux;
3533
3534 /* We don't touch the x_checksum field. The
3535 x_associated field is not currently supported. */
3536
3537 aux = csym->native + 1;
3538 switch (current->flags & SEC_LINK_DUPLICATES)
3539 {
3540 case SEC_LINK_DUPLICATES_DISCARD:
3541 aux->u.auxent.x_scn.x_comdat = IMAGE_COMDAT_SELECT_ANY;
3542 break;
3543
3544 case SEC_LINK_DUPLICATES_ONE_ONLY:
3545 aux->u.auxent.x_scn.x_comdat =
3546 IMAGE_COMDAT_SELECT_NODUPLICATES;
3547 break;
3548
3549 case SEC_LINK_DUPLICATES_SAME_SIZE:
3550 aux->u.auxent.x_scn.x_comdat =
3551 IMAGE_COMDAT_SELECT_SAME_SIZE;
3552 break;
3553
3554 case SEC_LINK_DUPLICATES_SAME_CONTENTS:
3555 aux->u.auxent.x_scn.x_comdat =
3556 IMAGE_COMDAT_SELECT_EXACT_MATCH;
3557 break;
3558 }
3559
3560 /* The COMDAT symbol must be the first symbol from this
3561 section in the symbol table. In order to make this
3562 work, we move the COMDAT symbol before the first
3563 symbol we found in the search above. It's OK to
3564 rearrange the symbol table at this point, because
3565 coff_renumber_symbols is going to rearrange it
3566 further and fix up all the aux entries. */
3567 if (psym != psymsec)
3568 {
3569 asymbol *hold;
3570 asymbol **pcopy;
3571
3572 hold = *psym;
3573 for (pcopy = psym; pcopy > psymsec; pcopy--)
3574 pcopy[0] = pcopy[-1];
3575 *psymsec = hold;
3576 }
3577 }
3578 }
3579#endif /* COFF_WITH_PE */
3580 }
3581
3582#ifdef RS6000COFF_C
dc810e39 3583#ifndef XCOFF64
252b5132
RH
3584 /* XCOFF handles overflows in the reloc and line number count fields
3585 by creating a new section header to hold the correct values. */
3586 for (current = abfd->sections; current != NULL; current = current->next)
3587 {
3588 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3589 {
3590 struct internal_scnhdr scnhdr;
3591 SCNHDR buff;
dc810e39 3592 bfd_size_type amt;
252b5132
RH
3593
3594 internal_f.f_nscns++;
3595 strncpy (&(scnhdr.s_name[0]), current->name, 8);
3596 scnhdr.s_paddr = current->reloc_count;
3597 scnhdr.s_vaddr = current->lineno_count;
3598 scnhdr.s_size = 0;
3599 scnhdr.s_scnptr = 0;
3600 scnhdr.s_relptr = current->rel_filepos;
3601 scnhdr.s_lnnoptr = current->line_filepos;
3602 scnhdr.s_nreloc = current->target_index;
3603 scnhdr.s_nlnno = current->target_index;
3604 scnhdr.s_flags = STYP_OVRFLO;
dc810e39 3605 amt = bfd_coff_scnhsz (abfd);
252b5132 3606 if (coff_swap_scnhdr_out (abfd, &scnhdr, &buff) == 0
dc810e39 3607 || bfd_bwrite ((PTR) &buff, amt, abfd) != amt)
252b5132
RH
3608 return false;
3609 }
3610 }
beb1bf64 3611#endif
252b5132
RH
3612#endif
3613
e60b52c6 3614 /* OK, now set up the filehdr... */
252b5132
RH
3615
3616 /* Don't include the internal abs section in the section count */
3617
3618 /*
3619 We will NOT put a fucking timestamp in the header here. Every time you
3620 put it back, I will come in and take it out again. I'm sorry. This
3621 field does not belong here. We fill it with a 0 so it compares the
3622 same but is not a reasonable time. -- gnu@cygnus.com
3623 */
3624 internal_f.f_timdat = 0;
3625
3626 internal_f.f_flags = 0;
3627
3628 if (abfd->flags & EXEC_P)
6b3b007b 3629 internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
252b5132
RH
3630 else
3631 {
3632 internal_f.f_opthdr = 0;
3633#ifdef RS6000COFF_C
dc810e39 3634#ifndef XCOFF64
252b5132 3635 if (xcoff_data (abfd)->full_aouthdr)
6b3b007b 3636 internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
252b5132
RH
3637 else
3638 internal_f.f_opthdr = SMALL_AOUTSZ;
dc810e39 3639#endif
252b5132
RH
3640#endif
3641 }
3642
3643 if (!hasrelocs)
3644 internal_f.f_flags |= F_RELFLG;
3645 if (!haslinno)
3646 internal_f.f_flags |= F_LNNO;
3647 if (abfd->flags & EXEC_P)
3648 internal_f.f_flags |= F_EXEC;
4cfec37b
ILT
3649#ifdef COFF_IMAGE_WITH_PE
3650 if (! hasdebug)
3651 internal_f.f_flags |= IMAGE_FILE_DEBUG_STRIPPED;
3652#endif
252b5132 3653
8a1ad8e7 3654#ifndef COFF_WITH_PE
252b5132
RH
3655 if (bfd_little_endian (abfd))
3656 internal_f.f_flags |= F_AR32WR;
3657 else
3658 internal_f.f_flags |= F_AR32W;
8a1ad8e7 3659#endif
252b5132 3660
81635ce4
TW
3661#ifdef TI_TARGET_ID
3662 /* target id is used in TI COFF v1 and later; COFF0 won't use this field,
3663 but it doesn't hurt to set it internally */
3664 internal_f.f_target_id = TI_TARGET_ID;
3665#endif
252b5132
RH
3666#ifdef TIC80_TARGET_ID
3667 internal_f.f_target_id = TIC80_TARGET_ID;
3668#endif
3669
3670 /*
3671 FIXME, should do something about the other byte orders and
3672 architectures.
3673 */
3674
3675#ifdef RS6000COFF_C
3676 if ((abfd->flags & DYNAMIC) != 0)
3677 internal_f.f_flags |= F_SHROBJ;
3678 if (bfd_get_section_by_name (abfd, _LOADER) != NULL)
3679 internal_f.f_flags |= F_DYNLOAD;
3680#endif
3681
3682 memset (&internal_a, 0, sizeof internal_a);
3683
3684 /* Set up architecture-dependent stuff */
3685
3686 {
3687 unsigned int magic = 0;
3688 unsigned short flags = 0;
3689 coff_set_flags (abfd, &magic, &flags);
3690 internal_f.f_magic = magic;
3691 internal_f.f_flags |= flags;
e60b52c6 3692 /* ...and the "opt"hdr... */
252b5132
RH
3693
3694#ifdef A29K
3695#ifdef ULTRA3 /* NYU's machine */
3696 /* FIXME: This is a bogus check. I really want to see if there
3697 * is a .shbss or a .shdata section, if so then set the magic
3698 * number to indicate a shared data executable.
3699 */
3700 if (internal_f.f_nscns >= 7)
3701 internal_a.magic = SHMAGIC; /* Shared magic */
3702 else
3703#endif /* ULTRA3 */
3704 internal_a.magic = NMAGIC; /* Assume separate i/d */
3705#define __A_MAGIC_SET__
3706#endif /* A29K */
81635ce4
TW
3707#ifdef TICOFF_AOUT_MAGIC
3708 internal_a.magic = TICOFF_AOUT_MAGIC;
3709#define __A_MAGIC_SET__
3710#endif
252b5132
RH
3711#ifdef TIC80COFF
3712 internal_a.magic = TIC80_ARCH_MAGIC;
3713#define __A_MAGIC_SET__
3714#endif /* TIC80 */
3715#ifdef I860
3716 /* FIXME: What are the a.out magic numbers for the i860? */
3717 internal_a.magic = 0;
3718#define __A_MAGIC_SET__
3719#endif /* I860 */
3720#ifdef I960
3721 internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC);
3722#define __A_MAGIC_SET__
3723#endif /* I960 */
3724#if M88
3725#define __A_MAGIC_SET__
3726 internal_a.magic = PAGEMAGICBCS;
3727#endif /* M88 */
3728
3729#if APOLLO_M68
3730#define __A_MAGIC_SET__
3731 internal_a.magic = APOLLO_COFF_VERSION_NUMBER;
3732#endif
3733
3734#if defined(M68) || defined(WE32K) || defined(M68K)
3735#define __A_MAGIC_SET__
3736#if defined(LYNXOS)
3737 internal_a.magic = LYNXCOFFMAGIC;
3738#else
3739#if defined(TARG_AUX)
3740 internal_a.magic = (abfd->flags & D_PAGED ? PAGEMAGICPEXECPAGED :
3741 abfd->flags & WP_TEXT ? PAGEMAGICPEXECSWAPPED :
3742 PAGEMAGICEXECSWAPPED);
3743#else
3744#if defined (PAGEMAGICPEXECPAGED)
3745 internal_a.magic = PAGEMAGICPEXECPAGED;
3746#endif
3747#endif /* TARG_AUX */
3748#endif /* LYNXOS */
3749#endif /* M68 || WE32K || M68K */
3750
3751#if defined(ARM)
3752#define __A_MAGIC_SET__
3753 internal_a.magic = ZMAGIC;
e60b52c6 3754#endif
252b5132
RH
3755
3756#if defined(PPC_PE)
3757#define __A_MAGIC_SET__
3758 internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
3759#endif
3760
3761#if defined MCORE_PE
3762#define __A_MAGIC_SET__
3763 internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
e60b52c6 3764#endif
252b5132
RH
3765
3766#if defined(I386)
3767#define __A_MAGIC_SET__
3768#if defined(LYNXOS)
3769 internal_a.magic = LYNXCOFFMAGIC;
3770#else /* LYNXOS */
3771 internal_a.magic = ZMAGIC;
3772#endif /* LYNXOS */
3773#endif /* I386 */
3774
fac41780
JW
3775#if defined(IA64)
3776#define __A_MAGIC_SET__
3777 internal_a.magic = ZMAGIC;
3778#endif /* IA64 */
3779
252b5132
RH
3780#if defined(SPARC)
3781#define __A_MAGIC_SET__
3782#if defined(LYNXOS)
3783 internal_a.magic = LYNXCOFFMAGIC;
3784#endif /* LYNXOS */
3785#endif /* SPARC */
3786
3787#ifdef RS6000COFF_C
3788#define __A_MAGIC_SET__
3789 internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC :
3790 (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC :
3791 RS6K_AOUTHDR_OMAGIC;
3792#endif
3793
17505c5c
NC
3794#if defined(SH) && defined(COFF_WITH_PE)
3795#define __A_MAGIC_SET__
3796 internal_a.magic = SH_PE_MAGIC;
3797#endif
3798
3799#if defined(MIPS) && defined(COFF_WITH_PE)
3800#define __A_MAGIC_SET__
3801 internal_a.magic = MIPS_PE_MAGIC;
3802#endif
3803
252b5132
RH
3804#ifndef __A_MAGIC_SET__
3805#include "Your aouthdr magic number is not being set!"
3806#else
3807#undef __A_MAGIC_SET__
3808#endif
3809 }
3810
3811 /* FIXME: Does anybody ever set this to another value? */
3812 internal_a.vstamp = 0;
3813
3814 /* Now should write relocs, strings, syms */
3815 obj_sym_filepos (abfd) = sym_base;
3816
3817 if (bfd_get_symcount (abfd) != 0)
3818 {
3819 int firstundef;
3820#if 0
3821 if (!coff_add_missing_symbols (abfd))
3822 return false;
3823#endif
3824 if (!coff_renumber_symbols (abfd, &firstundef))
3825 return false;
3826 coff_mangle_symbols (abfd);
3827 if (! coff_write_symbols (abfd))
3828 return false;
3829 if (! coff_write_linenumbers (abfd))
3830 return false;
3831 if (! coff_write_relocs (abfd, firstundef))
3832 return false;
3833 }
3834#ifdef COFF_LONG_SECTION_NAMES
d71f672e 3835 else if (long_section_names && ! obj_coff_strings_written (abfd))
252b5132
RH
3836 {
3837 /* If we have long section names we have to write out the string
3838 table even if there are no symbols. */
3839 if (! coff_write_symbols (abfd))
3840 return false;
3841 }
3842#endif
3843#ifdef COFF_IMAGE_WITH_PE
3844#ifdef PPC_PE
3845 else if ((abfd->flags & EXEC_P) != 0)
3846 {
3847 bfd_byte b;
3848
3849 /* PowerPC PE appears to require that all executable files be
3850 rounded up to the page size. */
3851 b = 0;
3852 if (bfd_seek (abfd,
dc810e39 3853 (file_ptr) BFD_ALIGN (sym_base, COFF_PAGE_SIZE) - 1,
252b5132 3854 SEEK_SET) != 0
dc810e39 3855 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
252b5132
RH
3856 return false;
3857 }
3858#endif
3859#endif
3860
3861 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
3862 backend linker, and obj_raw_syment_count is not valid until after
3863 coff_write_symbols is called. */
3864 if (obj_raw_syment_count (abfd) != 0)
3865 {
3866 internal_f.f_symptr = sym_base;
3867#ifdef RS6000COFF_C
3868 /* AIX appears to require that F_RELFLG not be set if there are
3869 local symbols but no relocations. */
3870 internal_f.f_flags &=~ F_RELFLG;
3871#endif
3872 }
3873 else
3874 {
3875 if (long_section_names)
3876 internal_f.f_symptr = sym_base;
3877 else
3878 internal_f.f_symptr = 0;
3879 internal_f.f_flags |= F_LSYMS;
3880 }
3881
3882 if (text_sec)
3883 {
3884 internal_a.tsize = bfd_get_section_size_before_reloc (text_sec);
3885 internal_a.text_start = internal_a.tsize ? text_sec->vma : 0;
3886 }
3887 if (data_sec)
3888 {
3889 internal_a.dsize = bfd_get_section_size_before_reloc (data_sec);
3890 internal_a.data_start = internal_a.dsize ? data_sec->vma : 0;
3891 }
3892 if (bss_sec)
3893 {
3894 internal_a.bsize = bfd_get_section_size_before_reloc (bss_sec);
3895 if (internal_a.bsize && bss_sec->vma < internal_a.data_start)
3896 internal_a.data_start = bss_sec->vma;
3897 }
3898
3899 internal_a.entry = bfd_get_start_address (abfd);
3900 internal_f.f_nsyms = obj_raw_syment_count (abfd);
3901
3902#ifdef RS6000COFF_C
3903 if (xcoff_data (abfd)->full_aouthdr)
3904 {
3905 bfd_vma toc;
3906 asection *loader_sec;
3907
3908 internal_a.vstamp = 1;
3909
3910 internal_a.o_snentry = xcoff_data (abfd)->snentry;
3911 if (internal_a.o_snentry == 0)
3912 internal_a.entry = (bfd_vma) -1;
3913
3914 if (text_sec != NULL)
3915 {
3916 internal_a.o_sntext = text_sec->target_index;
3917 internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec);
3918 }
3919 else
3920 {
3921 internal_a.o_sntext = 0;
3922 internal_a.o_algntext = 0;
3923 }
3924 if (data_sec != NULL)
3925 {
3926 internal_a.o_sndata = data_sec->target_index;
3927 internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec);
3928 }
3929 else
3930 {
3931 internal_a.o_sndata = 0;
3932 internal_a.o_algndata = 0;
3933 }
3934 loader_sec = bfd_get_section_by_name (abfd, ".loader");
3935 if (loader_sec != NULL)
3936 internal_a.o_snloader = loader_sec->target_index;
3937 else
3938 internal_a.o_snloader = 0;
3939 if (bss_sec != NULL)
3940 internal_a.o_snbss = bss_sec->target_index;
3941 else
3942 internal_a.o_snbss = 0;
3943
3944 toc = xcoff_data (abfd)->toc;
3945 internal_a.o_toc = toc;
3946 internal_a.o_sntoc = xcoff_data (abfd)->sntoc;
3947
3948 internal_a.o_modtype = xcoff_data (abfd)->modtype;
3949 if (xcoff_data (abfd)->cputype != -1)
3950 internal_a.o_cputype = xcoff_data (abfd)->cputype;
3951 else
3952 {
3953 switch (bfd_get_arch (abfd))
3954 {
3955 case bfd_arch_rs6000:
3956 internal_a.o_cputype = 4;
3957 break;
3958 case bfd_arch_powerpc:
3959 if (bfd_get_mach (abfd) == 0)
3960 internal_a.o_cputype = 3;
3961 else
3962 internal_a.o_cputype = 1;
3963 break;
3964 default:
3965 abort ();
3966 }
3967 }
3968 internal_a.o_maxstack = xcoff_data (abfd)->maxstack;
3969 internal_a.o_maxdata = xcoff_data (abfd)->maxdata;
3970 }
3971#endif
3972
3973 /* now write them */
3974 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
3975 return false;
e60b52c6 3976
252b5132 3977 {
b5f303f0 3978 char * buff;
dc810e39 3979 bfd_size_type amount = bfd_coff_filhsz (abfd);
e60b52c6 3980
dc810e39 3981 buff = bfd_malloc (amount);
e60b52c6 3982 if (buff == NULL)
b5f303f0 3983 return false;
e60b52c6 3984
dc810e39
AM
3985 bfd_coff_swap_filehdr_out (abfd, (PTR) &internal_f, (PTR) buff);
3986 amount = bfd_bwrite ((PTR) buff, amount, abfd);
e60b52c6 3987
2fca4467 3988 free (buff);
e60b52c6 3989
b5f303f0 3990 if (amount != bfd_coff_filhsz (abfd))
252b5132
RH
3991 return false;
3992 }
e60b52c6 3993
252b5132
RH
3994 if (abfd->flags & EXEC_P)
3995 {
e60b52c6
KH
3996 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
3997 include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)) */
b5f303f0 3998 char * buff;
dc810e39 3999 bfd_size_type amount = bfd_coff_aoutsz (abfd);
b5f303f0 4000
dc810e39 4001 buff = bfd_malloc (amount);
e60b52c6 4002 if (buff == NULL)
b5f303f0 4003 return false;
e60b52c6 4004
dc810e39
AM
4005 coff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) buff);
4006 amount = bfd_bwrite ((PTR) buff, amount, abfd);
e60b52c6 4007
2fca4467 4008 free (buff);
e60b52c6 4009
b5f303f0 4010 if (amount != bfd_coff_aoutsz (abfd))
252b5132
RH
4011 return false;
4012 }
4013#ifdef RS6000COFF_C
4014 else
4015 {
4016 AOUTHDR buff;
4017 size_t size;
4018
4019 /* XCOFF seems to always write at least a small a.out header. */
4020 coff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) &buff);
4021 if (xcoff_data (abfd)->full_aouthdr)
6b3b007b 4022 size = bfd_coff_aoutsz (abfd);
252b5132
RH
4023 else
4024 size = SMALL_AOUTSZ;
dc810e39 4025 if (bfd_bwrite ((PTR) &buff, (bfd_size_type) size, abfd) != size)
252b5132
RH
4026 return false;
4027 }
4028#endif
4029
4030 return true;
4031}
4032
4033static boolean
4034coff_set_section_contents (abfd, section, location, offset, count)
4035 bfd * abfd;
4036 sec_ptr section;
4037 PTR location;
4038 file_ptr offset;
4039 bfd_size_type count;
4040{
4041 if (abfd->output_has_begun == false) /* set by bfd.c handler */
4042 {
4043 if (! coff_compute_section_file_positions (abfd))
4044 return false;
4045 }
4046
4047#if defined(_LIB) && !defined(TARG_AUX)
4048
4049 /* The physical address field of a .lib section is used to hold the
4050 number of shared libraries in the section. This code counts the
4051 number of sections being written, and increments the lma field
4052 with the number.
4053
4054 I have found no documentation on the contents of this section.
4055 Experimentation indicates that the section contains zero or more
4056 records, each of which has the following structure:
4057
4058 - a (four byte) word holding the length of this record, in words,
4059 - a word that always seems to be set to "2",
4060 - the path to a shared library, null-terminated and then padded
4061 to a whole word boundary.
4062
4063 bfd_assert calls have been added to alert if an attempt is made
4064 to write a section which doesn't follow these assumptions. The
4065 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
4066 <robertl@arnet.com> (Thanks!).
e60b52c6 4067
252b5132
RH
4068 Gvran Uddeborg <gvran@uddeborg.pp.se> */
4069
4070 if (strcmp (section->name, _LIB) == 0)
4071 {
4072 bfd_byte *rec, *recend;
4073
4074 rec = (bfd_byte *) location;
4075 recend = rec + count;
4076 while (rec < recend)
4077 {
4078 ++section->lma;
4079 rec += bfd_get_32 (abfd, rec) * 4;
4080 }
4081
4082 BFD_ASSERT (rec == recend);
4083 }
4084
4085#endif
4086
4087 /* Don't write out bss sections - one way to do this is to
e60b52c6 4088 see if the filepos has not been set. */
252b5132
RH
4089 if (section->filepos == 0)
4090 return true;
4091
dc810e39 4092 if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0)
252b5132
RH
4093 return false;
4094
dc810e39
AM
4095 if (count == 0)
4096 return true;
4097
4098 return bfd_bwrite (location, count, abfd) == count;
252b5132
RH
4099}
4100#if 0
4101static boolean
4102coff_close_and_cleanup (abfd)
4103 bfd *abfd;
4104{
4105 if (!bfd_read_p (abfd))
4106 switch (abfd->format)
4107 {
4108 case bfd_archive:
4109 if (!_bfd_write_archive_contents (abfd))
4110 return false;
4111 break;
4112 case bfd_object:
4113 if (!coff_write_object_contents (abfd))
4114 return false;
4115 break;
4116 default:
4117 bfd_set_error (bfd_error_invalid_operation);
4118 return false;
4119 }
4120
4121 /* We depend on bfd_close to free all the memory on the objalloc. */
4122 return true;
4123}
4124
4125#endif
4126
4127static PTR
dc810e39 4128buy_and_read (abfd, where, size)
252b5132
RH
4129 bfd *abfd;
4130 file_ptr where;
dc810e39 4131 bfd_size_type size;
252b5132
RH
4132{
4133 PTR area = (PTR) bfd_alloc (abfd, size);
4134 if (!area)
4135 return (NULL);
dc810e39
AM
4136 if (bfd_seek (abfd, where, SEEK_SET) != 0
4137 || bfd_bread (area, size, abfd) != size)
252b5132
RH
4138 return (NULL);
4139 return (area);
4140} /* buy_and_read() */
4141
4142/*
4143SUBSUBSECTION
4144 Reading linenumbers
4145
4146 Creating the linenumber table is done by reading in the entire
4147 coff linenumber table, and creating another table for internal use.
4148
4149 A coff linenumber table is structured so that each function
4150 is marked as having a line number of 0. Each line within the
4151 function is an offset from the first line in the function. The
4152 base of the line number information for the table is stored in
4153 the symbol associated with the function.
4154
00692651
ILT
4155 Note: The PE format uses line number 0 for a flag indicating a
4156 new source file.
4157
252b5132
RH
4158 The information is copied from the external to the internal
4159 table, and each symbol which marks a function is marked by
4160 pointing its...
4161
4162 How does this work ?
4163
4164*/
4165
4166static boolean
4167coff_slurp_line_table (abfd, asect)
4168 bfd *abfd;
4169 asection *asect;
4170{
4171 LINENO *native_lineno;
4172 alent *lineno_cache;
dc810e39 4173 bfd_size_type amt;
252b5132
RH
4174
4175 BFD_ASSERT (asect->lineno == (alent *) NULL);
4176
dc810e39
AM
4177 amt = (bfd_size_type) bfd_coff_linesz (abfd) * asect->lineno_count;
4178 native_lineno = (LINENO *) buy_and_read (abfd, asect->line_filepos, amt);
4179 amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent);
4180 lineno_cache = (alent *) bfd_alloc (abfd, amt);
252b5132
RH
4181 if (lineno_cache == NULL)
4182 return false;
4183 else
4184 {
4185 unsigned int counter = 0;
4186 alent *cache_ptr = lineno_cache;
4187 LINENO *src = native_lineno;
4188
4189 while (counter < asect->lineno_count)
4190 {
4191 struct internal_lineno dst;
7f6d05e8 4192 bfd_coff_swap_lineno_in (abfd, src, &dst);
252b5132
RH
4193 cache_ptr->line_number = dst.l_lnno;
4194
4195 if (cache_ptr->line_number == 0)
4196 {
4197 boolean warned;
beb1bf64 4198 bfd_signed_vma symndx;
252b5132
RH
4199 coff_symbol_type *sym;
4200
4201 warned = false;
4202 symndx = dst.l_addr.l_symndx;
4203 if (symndx < 0
beb1bf64 4204 || (bfd_vma) symndx >= obj_raw_syment_count (abfd))
252b5132
RH
4205 {
4206 (*_bfd_error_handler)
4207 (_("%s: warning: illegal symbol index %ld in line numbers"),
8f615d07 4208 bfd_archive_filename (abfd), dst.l_addr.l_symndx);
252b5132
RH
4209 symndx = 0;
4210 warned = true;
4211 }
4212 /* FIXME: We should not be casting between ints and
4213 pointers like this. */
4214 sym = ((coff_symbol_type *)
4215 ((symndx + obj_raw_syments (abfd))
4216 ->u.syment._n._n_n._n_zeroes));
4217 cache_ptr->u.sym = (asymbol *) sym;
4218 if (sym->lineno != NULL && ! warned)
4219 {
4220 (*_bfd_error_handler)
4221 (_("%s: warning: duplicate line number information for `%s'"),
8f615d07 4222 bfd_archive_filename (abfd),
252b5132
RH
4223 bfd_asymbol_name (&sym->symbol));
4224 }
4225 sym->lineno = cache_ptr;
4226 }
4227 else
4228 {
4229 cache_ptr->u.offset = dst.l_addr.l_paddr
4230 - bfd_section_vma (abfd, asect);
4231 } /* If no linenumber expect a symbol index */
4232
4233 cache_ptr++;
4234 src++;
4235 counter++;
4236 }
4237 cache_ptr->line_number = 0;
4238
4239 }
4240 asect->lineno = lineno_cache;
e60b52c6 4241 /* FIXME, free native_lineno here, or use alloca or something. */
252b5132
RH
4242 return true;
4243}
4244
00692651
ILT
4245/* Slurp in the symbol table, converting it to generic form. Note
4246 that if coff_relocate_section is defined, the linker will read
4247 symbols via coff_link_add_symbols, rather than via this routine. */
4248
252b5132
RH
4249static boolean
4250coff_slurp_symbol_table (abfd)
4251 bfd * abfd;
4252{
4253 combined_entry_type *native_symbols;
4254 coff_symbol_type *cached_area;
4255 unsigned int *table_ptr;
dc810e39 4256 bfd_size_type amt;
252b5132
RH
4257
4258 unsigned int number_of_symbols = 0;
4259
4260 if (obj_symbols (abfd))
4261 return true;
4262
4263 /* Read in the symbol table */
4264 if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL)
4265 {
4266 return (false);
4267 } /* on error */
4268
4269 /* Allocate enough room for all the symbols in cached form */
dc810e39
AM
4270 amt = obj_raw_syment_count (abfd);
4271 amt *= sizeof (coff_symbol_type);
4272 cached_area = (coff_symbol_type *) bfd_alloc (abfd, amt);
252b5132
RH
4273 if (cached_area == NULL)
4274 return false;
dc810e39
AM
4275
4276 amt = obj_raw_syment_count (abfd);
4277 amt *= sizeof (unsigned int);
4278 table_ptr = (unsigned int *) bfd_alloc (abfd, amt);
252b5132
RH
4279
4280 if (table_ptr == NULL)
4281 return false;
4282 else
4283 {
4284 coff_symbol_type *dst = cached_area;
4285 unsigned int last_native_index = obj_raw_syment_count (abfd);
4286 unsigned int this_index = 0;
4287 while (this_index < last_native_index)
4288 {
4289 combined_entry_type *src = native_symbols + this_index;
4290 table_ptr[this_index] = number_of_symbols;
4291 dst->symbol.the_bfd = abfd;
4292
4293 dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset);
4294 /* We use the native name field to point to the cached field. */
4295 src->u.syment._n._n_n._n_zeroes = (long) dst;
4296 dst->symbol.section = coff_section_from_bfd_index (abfd,
4297 src->u.syment.n_scnum);
4298 dst->symbol.flags = 0;
4299 dst->done_lineno = false;
4300
4301 switch (src->u.syment.n_sclass)
4302 {
4303#ifdef I960
4304 case C_LEAFEXT:
4305#if 0
4306 dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma;
4307 dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
4308 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4309#endif
4310 /* Fall through to next case */
4311
4312#endif
4313
4314 case C_EXT:
4315 case C_WEAKEXT:
4316#if defined ARM
4317 case C_THUMBEXT:
4318 case C_THUMBEXTFUNC:
4319#endif
4320#ifdef RS6000COFF_C
4321 case C_HIDEXT:
4322#endif
4323#ifdef C_SYSTEM
4324 case C_SYSTEM: /* System Wide variable */
4325#endif
4326#ifdef COFF_WITH_PE
5d54c628 4327 /* In PE, 0x68 (104) denotes a section symbol */
252b5132 4328 case C_SECTION:
5d54c628 4329 /* In PE, 0x69 (105) denotes a weak external symbol. */
252b5132
RH
4330 case C_NT_WEAK:
4331#endif
5d54c628 4332 switch (coff_classify_symbol (abfd, &src->u.syment))
252b5132 4333 {
5d54c628 4334 case COFF_SYMBOL_GLOBAL:
252b5132 4335 dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
252b5132
RH
4336#if defined COFF_WITH_PE
4337 /* PE sets the symbol to a value relative to the
4338 start of the section. */
4339 dst->symbol.value = src->u.syment.n_value;
4340#else
4341 dst->symbol.value = (src->u.syment.n_value
4342 - dst->symbol.section->vma);
4343#endif
252b5132
RH
4344 if (ISFCN ((src->u.syment.n_type)))
4345 {
4346 /* A function ext does not go at the end of a
4347 file. */
4348 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4349 }
5d54c628
ILT
4350 break;
4351
4352 case COFF_SYMBOL_COMMON:
4353 dst->symbol.section = bfd_com_section_ptr;
4354 dst->symbol.value = src->u.syment.n_value;
4355 break;
4356
4357 case COFF_SYMBOL_UNDEFINED:
4358 dst->symbol.section = bfd_und_section_ptr;
4359 dst->symbol.value = 0;
e60b52c6 4360 break;
5d54c628
ILT
4361
4362 case COFF_SYMBOL_PE_SECTION:
4363 dst->symbol.flags |= BSF_EXPORT | BSF_SECTION_SYM;
4364 dst->symbol.value = 0;
4365 break;
4366
4367 case COFF_SYMBOL_LOCAL:
4368 dst->symbol.flags = BSF_LOCAL;
4369#if defined COFF_WITH_PE
4370 /* PE sets the symbol to a value relative to the
4371 start of the section. */
4372 dst->symbol.value = src->u.syment.n_value;
4373#else
4374 dst->symbol.value = (src->u.syment.n_value
4375 - dst->symbol.section->vma);
4376#endif
4377 if (ISFCN ((src->u.syment.n_type)))
4378 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4379 break;
252b5132
RH
4380 }
4381
4382#ifdef RS6000COFF_C
252b5132
RH
4383 /* A symbol with a csect entry should not go at the end. */
4384 if (src->u.syment.n_numaux > 0)
4385 dst->symbol.flags |= BSF_NOT_AT_END;
4386#endif
4387
4388#ifdef COFF_WITH_PE
4389 if (src->u.syment.n_sclass == C_NT_WEAK)
4390 dst->symbol.flags = BSF_WEAK;
ec0ef80e
DD
4391 if (src->u.syment.n_sclass == C_SECTION
4392 && src->u.syment.n_scnum > 0)
4393 {
4394 dst->symbol.flags = BSF_LOCAL;
4395 }
252b5132
RH
4396#endif
4397
4398 if (src->u.syment.n_sclass == C_WEAKEXT)
4399 dst->symbol.flags = BSF_WEAK;
4400
4401 break;
4402
4403 case C_STAT: /* static */
4404#ifdef I960
4405 case C_LEAFSTAT: /* static leaf procedure */
4406#endif
e60b52c6 4407#if defined ARM
252b5132
RH
4408 case C_THUMBSTAT: /* Thumb static */
4409 case C_THUMBLABEL: /* Thumb label */
4410 case C_THUMBSTATFUNC:/* Thumb static function */
4411#endif
4412 case C_LABEL: /* label */
00692651 4413 if (src->u.syment.n_scnum == N_DEBUG)
252b5132
RH
4414 dst->symbol.flags = BSF_DEBUGGING;
4415 else
4416 dst->symbol.flags = BSF_LOCAL;
4417
4418 /* Base the value as an index from the base of the
4419 section, if there is one. */
4420 if (dst->symbol.section)
4421 {
4422#if defined COFF_WITH_PE
4423 /* PE sets the symbol to a value relative to the
4424 start of the section. */
4425 dst->symbol.value = src->u.syment.n_value;
4426#else
4427 dst->symbol.value = (src->u.syment.n_value
4428 - dst->symbol.section->vma);
4429#endif
4430 }
4431 else
4432 dst->symbol.value = src->u.syment.n_value;
4433 break;
4434
4435 case C_MOS: /* member of structure */
4436 case C_EOS: /* end of structure */
4437#ifdef NOTDEF /* C_AUTOARG has the same value */
4438#ifdef C_GLBLREG
4439 case C_GLBLREG: /* A29k-specific storage class */
4440#endif
4441#endif
4442 case C_REGPARM: /* register parameter */
4443 case C_REG: /* register variable */
81635ce4
TW
4444 /* C_AUTOARG conflictes with TI COFF C_UEXT */
4445#if !defined (TIC80COFF) && !defined (TICOFF)
252b5132
RH
4446#ifdef C_AUTOARG
4447 case C_AUTOARG: /* 960-specific storage class */
4448#endif
4449#endif
4450 case C_TPDEF: /* type definition */
4451 case C_ARG:
4452 case C_AUTO: /* automatic variable */
4453 case C_FIELD: /* bit field */
4454 case C_ENTAG: /* enumeration tag */
4455 case C_MOE: /* member of enumeration */
4456 case C_MOU: /* member of union */
4457 case C_UNTAG: /* union tag */
4458 dst->symbol.flags = BSF_DEBUGGING;
4459 dst->symbol.value = (src->u.syment.n_value);
4460 break;
4461
4462 case C_FILE: /* file name */
4463 case C_STRTAG: /* structure tag */
4464#ifdef RS6000COFF_C
4465 case C_GSYM:
4466 case C_LSYM:
4467 case C_PSYM:
4468 case C_RSYM:
4469 case C_RPSYM:
4470 case C_STSYM:
4471 case C_BCOMM:
4472 case C_ECOMM:
4473 case C_DECL:
4474 case C_ENTRY:
4475 case C_FUN:
4476 case C_ESTAT:
4477#endif
4478 dst->symbol.flags = BSF_DEBUGGING;
4479 dst->symbol.value = (src->u.syment.n_value);
4480 break;
4481
4482#ifdef RS6000COFF_C
4483 case C_BINCL: /* beginning of include file */
4484 case C_EINCL: /* ending of include file */
4485 /* The value is actually a pointer into the line numbers
4486 of the file. We locate the line number entry, and
4487 set the section to the section which contains it, and
4488 the value to the index in that section. */
4489 {
4490 asection *sec;
4491
4492 dst->symbol.flags = BSF_DEBUGGING;
4493 for (sec = abfd->sections; sec != NULL; sec = sec->next)
4494 if (sec->line_filepos <= (file_ptr) src->u.syment.n_value
4495 && ((file_ptr) (sec->line_filepos
6b3b007b 4496 + sec->lineno_count * bfd_coff_linesz (abfd))
252b5132
RH
4497 > (file_ptr) src->u.syment.n_value))
4498 break;
4499 if (sec == NULL)
4500 dst->symbol.value = 0;
4501 else
4502 {
4503 dst->symbol.section = sec;
4504 dst->symbol.value = ((src->u.syment.n_value
4505 - sec->line_filepos)
6b3b007b 4506 / bfd_coff_linesz (abfd));
252b5132
RH
4507 src->fix_line = 1;
4508 }
4509 }
4510 break;
4511
4512 case C_BSTAT:
4513 dst->symbol.flags = BSF_DEBUGGING;
4514
4515 /* The value is actually a symbol index. Save a pointer
4516 to the symbol instead of the index. FIXME: This
4517 should use a union. */
4518 src->u.syment.n_value =
4519 (long) (native_symbols + src->u.syment.n_value);
4520 dst->symbol.value = src->u.syment.n_value;
4521 src->fix_value = 1;
4522 break;
4523#endif
4524
4525 case C_BLOCK: /* ".bb" or ".eb" */
60bcf0fa 4526 case C_FCN: /* ".bf" or ".ef" (or PE ".lf") */
252b5132 4527 case C_EFCN: /* physical end of function */
252b5132
RH
4528#if defined COFF_WITH_PE
4529 /* PE sets the symbol to a value relative to the start
4530 of the section. */
4531 dst->symbol.value = src->u.syment.n_value;
d510f9a6
ILT
4532 if (strcmp (dst->symbol.name, ".bf") != 0)
4533 {
4534 /* PE uses funny values for .ef and .lf; don't
4535 relocate them. */
4536 dst->symbol.flags = BSF_DEBUGGING;
4537 }
4538 else
4539 dst->symbol.flags = BSF_DEBUGGING | BSF_DEBUGGING_RELOC;
252b5132
RH
4540#else
4541 /* Base the value as an index from the base of the
4542 section. */
d510f9a6 4543 dst->symbol.flags = BSF_LOCAL;
252b5132
RH
4544 dst->symbol.value = (src->u.syment.n_value
4545 - dst->symbol.section->vma);
4546#endif
4547 break;
4548
34cbe64e
TW
4549 case C_STATLAB: /* Static load time label */
4550 dst->symbol.value = src->u.syment.n_value;
4551 dst->symbol.flags = BSF_GLOBAL;
4552 break;
4553
252b5132 4554 case C_NULL:
00692651
ILT
4555 /* PE DLLs sometimes have zeroed out symbols for some
4556 reason. Just ignore them without a warning. */
4557 if (src->u.syment.n_type == 0
4558 && src->u.syment.n_value == 0
4559 && src->u.syment.n_scnum == 0)
4560 break;
4561 /* Fall through. */
252b5132
RH
4562 case C_EXTDEF: /* external definition */
4563 case C_ULABEL: /* undefined label */
4564 case C_USTATIC: /* undefined static */
4565#ifndef COFF_WITH_PE
4566 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4567 class to represent a section symbol */
4568 case C_LINE: /* line # reformatted as symbol table entry */
4569 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4570 case C_ALIAS: /* duplicate tag */
4571#endif
e60b52c6 4572 /* New storage classes for TI COFF */
81635ce4 4573#if defined(TIC80COFF) || defined(TICOFF)
252b5132
RH
4574 case C_UEXT: /* Tentative external definition */
4575#endif
252b5132
RH
4576 case C_EXTLAB: /* External load time label */
4577 case C_HIDDEN: /* ext symbol in dmert public lib */
4578 default:
4579 (*_bfd_error_handler)
4580 (_("%s: Unrecognized storage class %d for %s symbol `%s'"),
8f615d07 4581 bfd_archive_filename (abfd), src->u.syment.n_sclass,
252b5132
RH
4582 dst->symbol.section->name, dst->symbol.name);
4583 dst->symbol.flags = BSF_DEBUGGING;
4584 dst->symbol.value = (src->u.syment.n_value);
4585 break;
4586 }
4587
4588/* BFD_ASSERT(dst->symbol.flags != 0);*/
4589
4590 dst->native = src;
4591
4592 dst->symbol.udata.i = 0;
4593 dst->lineno = (alent *) NULL;
4594 this_index += (src->u.syment.n_numaux) + 1;
4595 dst++;
4596 number_of_symbols++;
4597 } /* walk the native symtab */
4598 } /* bfdize the native symtab */
4599
4600 obj_symbols (abfd) = cached_area;
4601 obj_raw_syments (abfd) = native_symbols;
4602
4603 bfd_get_symcount (abfd) = number_of_symbols;
4604 obj_convert (abfd) = table_ptr;
4605 /* Slurp the line tables for each section too */
4606 {
4607 asection *p;
4608 p = abfd->sections;
4609 while (p)
4610 {
4611 coff_slurp_line_table (abfd, p);
4612 p = p->next;
4613 }
4614 }
4615 return true;
4616} /* coff_slurp_symbol_table() */
4617
5d54c628
ILT
4618/* Classify a COFF symbol. A couple of targets have globally visible
4619 symbols which are not class C_EXT, and this handles those. It also
4620 recognizes some special PE cases. */
252b5132 4621
5d54c628
ILT
4622static enum coff_symbol_classification
4623coff_classify_symbol (abfd, syment)
4624 bfd *abfd;
4625 struct internal_syment *syment;
4626{
4627 /* FIXME: This partially duplicates the switch in
4628 coff_slurp_symbol_table. */
4629 switch (syment->n_sclass)
4630 {
4631 case C_EXT:
4632 case C_WEAKEXT:
252b5132 4633#ifdef I960
5d54c628 4634 case C_LEAFEXT:
252b5132 4635#endif
5d54c628
ILT
4636#ifdef ARM
4637 case C_THUMBEXT:
4638 case C_THUMBEXTFUNC:
252b5132 4639#endif
5d54c628
ILT
4640#ifdef C_SYSTEM
4641 case C_SYSTEM:
252b5132 4642#endif
5d54c628
ILT
4643#ifdef COFF_WITH_PE
4644 case C_NT_WEAK:
4645#endif
4646 if (syment->n_scnum == 0)
4647 {
4648 if (syment->n_value == 0)
4649 return COFF_SYMBOL_UNDEFINED;
4650 else
4651 return COFF_SYMBOL_COMMON;
4652 }
4653 return COFF_SYMBOL_GLOBAL;
4654
4655 default:
4656 break;
4657 }
252b5132 4658
5d54c628
ILT
4659#ifdef COFF_WITH_PE
4660 if (syment->n_sclass == C_STAT)
4661 {
4662 if (syment->n_scnum == 0)
4663 {
4664 /* The Microsoft compiler sometimes generates these if a
4665 small static function is inlined every time it is used.
4666 The function is discarded, but the symbol table entry
4667 remains. */
4668 return COFF_SYMBOL_LOCAL;
4669 }
252b5132 4670
0717ebb7 4671#ifdef STRICT_PE_FORMAT
bd826630
ILT
4672 /* This is correct for Microsoft generated objects, but it
4673 breaks gas generated objects. */
4674
5d54c628
ILT
4675 if (syment->n_value == 0)
4676 {
4677 asection *sec;
4678 char buf[SYMNMLEN + 1];
4679
4680 sec = coff_section_from_bfd_index (abfd, syment->n_scnum);
4681 if (sec != NULL
4682 && (strcmp (bfd_get_section_name (abfd, sec),
4683 _bfd_coff_internal_syment_name (abfd, syment, buf))
4684 == 0))
4685 return COFF_SYMBOL_PE_SECTION;
4686 }
bd826630 4687#endif
252b5132 4688
5d54c628
ILT
4689 return COFF_SYMBOL_LOCAL;
4690 }
252b5132 4691
5d54c628
ILT
4692 if (syment->n_sclass == C_SECTION)
4693 {
4694 /* In some cases in a DLL generated by the Microsoft linker, the
4695 n_value field will contain garbage. FIXME: This should
4696 probably be handled by the swapping function instead. */
4697 syment->n_value = 0;
4698 if (syment->n_scnum == 0)
4699 return COFF_SYMBOL_UNDEFINED;
4700 return COFF_SYMBOL_PE_SECTION;
4701 }
4702#endif /* COFF_WITH_PE */
252b5132 4703
5d54c628 4704 /* If it is not a global symbol, we presume it is a local symbol. */
252b5132 4705
5d54c628
ILT
4706 if (syment->n_scnum == 0)
4707 {
4708 char buf[SYMNMLEN + 1];
252b5132 4709
5d54c628
ILT
4710 (*_bfd_error_handler)
4711 (_("warning: %s: local symbol `%s' has no section"),
8f615d07 4712 bfd_archive_filename (abfd),
5d54c628
ILT
4713 _bfd_coff_internal_syment_name (abfd, syment, buf));
4714 }
252b5132 4715
5d54c628
ILT
4716 return COFF_SYMBOL_LOCAL;
4717}
252b5132
RH
4718
4719/*
4720SUBSUBSECTION
4721 Reading relocations
4722
4723 Coff relocations are easily transformed into the internal BFD form
4724 (@code{arelent}).
4725
4726 Reading a coff relocation table is done in the following stages:
4727
4728 o Read the entire coff relocation table into memory.
4729
4730 o Process each relocation in turn; first swap it from the
4731 external to the internal form.
4732
4733 o Turn the symbol referenced in the relocation's symbol index
4734 into a pointer into the canonical symbol table.
4735 This table is the same as the one returned by a call to
4736 @code{bfd_canonicalize_symtab}. The back end will call that
4737 routine and save the result if a canonicalization hasn't been done.
4738
4739 o The reloc index is turned into a pointer to a howto
4740 structure, in a back end specific way. For instance, the 386
4741 and 960 use the @code{r_type} to directly produce an index
4742 into a howto table vector; the 88k subtracts a number from the
4743 @code{r_type} field and creates an addend field.
4744
252b5132
RH
4745*/
4746
4747#ifndef CALC_ADDEND
4748#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
4749 { \
4750 coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \
4751 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
4752 coffsym = (obj_symbols (abfd) \
4753 + (cache_ptr->sym_ptr_ptr - symbols)); \
4754 else if (ptr) \
4755 coffsym = coff_symbol_from (abfd, ptr); \
4756 if (coffsym != (coff_symbol_type *) NULL \
4757 && coffsym->native->u.syment.n_scnum == 0) \
4758 cache_ptr->addend = 0; \
4759 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
4760 && ptr->section != (asection *) NULL) \
4761 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
4762 else \
4763 cache_ptr->addend = 0; \
4764 }
4765#endif
4766
4767static boolean
4768coff_slurp_reloc_table (abfd, asect, symbols)
4769 bfd * abfd;
4770 sec_ptr asect;
4771 asymbol ** symbols;
4772{
4773 RELOC *native_relocs;
4774 arelent *reloc_cache;
4775 arelent *cache_ptr;
252b5132 4776 unsigned int idx;
dc810e39 4777 bfd_size_type amt;
252b5132
RH
4778
4779 if (asect->relocation)
4780 return true;
4781 if (asect->reloc_count == 0)
4782 return true;
4783 if (asect->flags & SEC_CONSTRUCTOR)
4784 return true;
4785 if (!coff_slurp_symbol_table (abfd))
4786 return false;
dc810e39
AM
4787 amt = (bfd_size_type) bfd_coff_relsz (abfd) * asect->reloc_count;
4788 native_relocs = (RELOC *) buy_and_read (abfd, asect->rel_filepos, amt);
4789 amt = (bfd_size_type) asect->reloc_count * sizeof (arelent);
4790 reloc_cache = (arelent *) bfd_alloc (abfd, amt);
252b5132
RH
4791
4792 if (reloc_cache == NULL)
4793 return false;
4794
252b5132
RH
4795 for (idx = 0; idx < asect->reloc_count; idx++)
4796 {
4797 struct internal_reloc dst;
4798 struct external_reloc *src;
4799#ifndef RELOC_PROCESSING
4800 asymbol *ptr;
4801#endif
4802
4803 cache_ptr = reloc_cache + idx;
4804 src = native_relocs + idx;
4805
4806 coff_swap_reloc_in (abfd, src, &dst);
4807
4808#ifdef RELOC_PROCESSING
4809 RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect);
4810#else
4811 cache_ptr->address = dst.r_vaddr;
4812
4813 if (dst.r_symndx != -1)
4814 {
4815 if (dst.r_symndx < 0 || dst.r_symndx >= obj_conv_table_size (abfd))
4816 {
4817 (*_bfd_error_handler)
4818 (_("%s: warning: illegal symbol index %ld in relocs"),
8f615d07 4819 bfd_archive_filename (abfd), dst.r_symndx);
252b5132
RH
4820 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
4821 ptr = NULL;
4822 }
4823 else
4824 {
4825 cache_ptr->sym_ptr_ptr = (symbols
4826 + obj_convert (abfd)[dst.r_symndx]);
4827 ptr = *(cache_ptr->sym_ptr_ptr);
4828 }
4829 }
4830 else
4831 {
4832 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
4833 ptr = NULL;
4834 }
4835
4836 /* The symbols definitions that we have read in have been
4837 relocated as if their sections started at 0. But the offsets
4838 refering to the symbols in the raw data have not been
4839 modified, so we have to have a negative addend to compensate.
4840
4841 Note that symbols which used to be common must be left alone */
4842
4843 /* Calculate any reloc addend by looking at the symbol */
4844 CALC_ADDEND (abfd, ptr, dst, cache_ptr);
4845
4846 cache_ptr->address -= asect->vma;
4847/* !! cache_ptr->section = (asection *) NULL;*/
4848
4849 /* Fill in the cache_ptr->howto field from dst.r_type */
4850 RTYPE2HOWTO (cache_ptr, &dst);
4851#endif /* RELOC_PROCESSING */
4852
4853 if (cache_ptr->howto == NULL)
4854 {
4855 (*_bfd_error_handler)
4856 (_("%s: illegal relocation type %d at address 0x%lx"),
8f615d07 4857 bfd_archive_filename (abfd), dst.r_type, (long) dst.r_vaddr);
252b5132
RH
4858 bfd_set_error (bfd_error_bad_value);
4859 return false;
4860 }
4861 }
4862
4863 asect->relocation = reloc_cache;
4864 return true;
4865}
4866
4867#ifndef coff_rtype_to_howto
4868#ifdef RTYPE2HOWTO
4869
4870/* Get the howto structure for a reloc. This is only used if the file
4871 including this one defines coff_relocate_section to be
4872 _bfd_coff_generic_relocate_section, so it is OK if it does not
4873 always work. It is the responsibility of the including file to
4874 make sure it is reasonable if it is needed. */
4875
4876static reloc_howto_type *coff_rtype_to_howto
4877 PARAMS ((bfd *, asection *, struct internal_reloc *,
4878 struct coff_link_hash_entry *, struct internal_syment *,
4879 bfd_vma *));
4880
4881/*ARGSUSED*/
4882static reloc_howto_type *
4883coff_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
5f771d47
ILT
4884 bfd *abfd ATTRIBUTE_UNUSED;
4885 asection *sec ATTRIBUTE_UNUSED;
252b5132 4886 struct internal_reloc *rel;
5f771d47
ILT
4887 struct coff_link_hash_entry *h ATTRIBUTE_UNUSED;
4888 struct internal_syment *sym ATTRIBUTE_UNUSED;
4889 bfd_vma *addendp ATTRIBUTE_UNUSED;
252b5132
RH
4890{
4891 arelent genrel;
4892
4893 RTYPE2HOWTO (&genrel, rel);
4894 return genrel.howto;
4895}
4896
4897#else /* ! defined (RTYPE2HOWTO) */
4898
4899#define coff_rtype_to_howto NULL
4900
4901#endif /* ! defined (RTYPE2HOWTO) */
4902#endif /* ! defined (coff_rtype_to_howto) */
4903
4904/* This is stupid. This function should be a boolean predicate. */
4905static long
4906coff_canonicalize_reloc (abfd, section, relptr, symbols)
4907 bfd * abfd;
4908 sec_ptr section;
4909 arelent ** relptr;
4910 asymbol ** symbols;
4911{
4912 arelent *tblptr = section->relocation;
4913 unsigned int count = 0;
4914
252b5132
RH
4915 if (section->flags & SEC_CONSTRUCTOR)
4916 {
4917 /* this section has relocs made up by us, they are not in the
4918 file, so take them out of their chain and place them into
4919 the data area provided */
4920 arelent_chain *chain = section->constructor_chain;
4921 for (count = 0; count < section->reloc_count; count++)
4922 {
4923 *relptr++ = &chain->relent;
4924 chain = chain->next;
4925 }
4926
4927 }
4928 else
4929 {
4930 if (! coff_slurp_reloc_table (abfd, section, symbols))
4931 return -1;
4932
4933 tblptr = section->relocation;
4934
4935 for (; count++ < section->reloc_count;)
4936 *relptr++ = tblptr++;
252b5132
RH
4937 }
4938 *relptr = 0;
4939 return section->reloc_count;
4940}
4941
4942#ifdef GNU960
4943file_ptr
4944coff_sym_filepos (abfd)
4945 bfd *abfd;
4946{
4947 return obj_sym_filepos (abfd);
4948}
4949#endif
4950
4951#ifndef coff_reloc16_estimate
4952#define coff_reloc16_estimate dummy_reloc16_estimate
4953
4954static int dummy_reloc16_estimate
4955 PARAMS ((bfd *, asection *, arelent *, unsigned int,
4956 struct bfd_link_info *));
4957
4958static int
4959dummy_reloc16_estimate (abfd, input_section, reloc, shrink, link_info)
5f771d47
ILT
4960 bfd *abfd ATTRIBUTE_UNUSED;
4961 asection *input_section ATTRIBUTE_UNUSED;
4962 arelent *reloc ATTRIBUTE_UNUSED;
4963 unsigned int shrink ATTRIBUTE_UNUSED;
4964 struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
252b5132
RH
4965{
4966 abort ();
00692651 4967 return 0;
252b5132
RH
4968}
4969
4970#endif
4971
4972#ifndef coff_reloc16_extra_cases
4973
4974#define coff_reloc16_extra_cases dummy_reloc16_extra_cases
4975
4976/* This works even if abort is not declared in any header file. */
4977
4978static void dummy_reloc16_extra_cases
4979 PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
4980 bfd_byte *, unsigned int *, unsigned int *));
4981
4982static void
4983dummy_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr,
4984 dst_ptr)
5f771d47
ILT
4985 bfd *abfd ATTRIBUTE_UNUSED;
4986 struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
4987 struct bfd_link_order *link_order ATTRIBUTE_UNUSED;
4988 arelent *reloc ATTRIBUTE_UNUSED;
4989 bfd_byte *data ATTRIBUTE_UNUSED;
4990 unsigned int *src_ptr ATTRIBUTE_UNUSED;
4991 unsigned int *dst_ptr ATTRIBUTE_UNUSED;
252b5132
RH
4992{
4993 abort ();
4994}
4995#endif
4996
4997/* If coff_relocate_section is defined, we can use the optimized COFF
4998 backend linker. Otherwise we must continue to use the old linker. */
4999#ifdef coff_relocate_section
5000#ifndef coff_bfd_link_hash_table_create
5001#define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
5002#endif
5003#ifndef coff_bfd_link_add_symbols
5004#define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
5005#endif
5006#ifndef coff_bfd_final_link
5007#define coff_bfd_final_link _bfd_coff_final_link
5008#endif
5009#else /* ! defined (coff_relocate_section) */
5010#define coff_relocate_section NULL
5011#ifndef coff_bfd_link_hash_table_create
5012#define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
5013#endif
5014#ifndef coff_bfd_link_add_symbols
5015#define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
5016#endif
5017#define coff_bfd_final_link _bfd_generic_final_link
5018#endif /* ! defined (coff_relocate_section) */
5019
5020#define coff_bfd_link_split_section _bfd_generic_link_split_section
5021
5022#ifndef coff_start_final_link
5023#define coff_start_final_link NULL
5024#endif
5025
5026#ifndef coff_adjust_symndx
5027#define coff_adjust_symndx NULL
5028#endif
5029
5030#ifndef coff_link_add_one_symbol
5031#define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
5032#endif
5033
5034#ifndef coff_link_output_has_begun
5035
5036static boolean coff_link_output_has_begun
5037 PARAMS ((bfd *, struct coff_final_link_info *));
5038
5039static boolean
5040coff_link_output_has_begun (abfd, info)
5041 bfd * abfd;
5f771d47 5042 struct coff_final_link_info * info ATTRIBUTE_UNUSED;
252b5132
RH
5043{
5044 return abfd->output_has_begun;
5045}
5046#endif
5047
5048#ifndef coff_final_link_postscript
5049
5050static boolean coff_final_link_postscript
5051 PARAMS ((bfd *, struct coff_final_link_info *));
5052
5053static boolean
5054coff_final_link_postscript (abfd, pfinfo)
5f771d47
ILT
5055 bfd * abfd ATTRIBUTE_UNUSED;
5056 struct coff_final_link_info * pfinfo ATTRIBUTE_UNUSED;
252b5132
RH
5057{
5058 return true;
5059}
5060#endif
5061
5062#ifndef coff_SWAP_aux_in
5063#define coff_SWAP_aux_in coff_swap_aux_in
5064#endif
5065#ifndef coff_SWAP_sym_in
5066#define coff_SWAP_sym_in coff_swap_sym_in
5067#endif
5068#ifndef coff_SWAP_lineno_in
5069#define coff_SWAP_lineno_in coff_swap_lineno_in
5070#endif
5071#ifndef coff_SWAP_aux_out
5072#define coff_SWAP_aux_out coff_swap_aux_out
5073#endif
5074#ifndef coff_SWAP_sym_out
5075#define coff_SWAP_sym_out coff_swap_sym_out
5076#endif
5077#ifndef coff_SWAP_lineno_out
5078#define coff_SWAP_lineno_out coff_swap_lineno_out
5079#endif
5080#ifndef coff_SWAP_reloc_out
5081#define coff_SWAP_reloc_out coff_swap_reloc_out
5082#endif
5083#ifndef coff_SWAP_filehdr_out
5084#define coff_SWAP_filehdr_out coff_swap_filehdr_out
5085#endif
5086#ifndef coff_SWAP_aouthdr_out
5087#define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
5088#endif
5089#ifndef coff_SWAP_scnhdr_out
5090#define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
5091#endif
5092#ifndef coff_SWAP_reloc_in
5093#define coff_SWAP_reloc_in coff_swap_reloc_in
5094#endif
5095#ifndef coff_SWAP_filehdr_in
5096#define coff_SWAP_filehdr_in coff_swap_filehdr_in
5097#endif
5098#ifndef coff_SWAP_aouthdr_in
5099#define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
5100#endif
5101#ifndef coff_SWAP_scnhdr_in
5102#define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
5103#endif
5104
692b7d62 5105static const bfd_coff_backend_data bfd_coff_std_swap_table =
252b5132
RH
5106{
5107 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5108 coff_SWAP_aux_out, coff_SWAP_sym_out,
5109 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5110 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5111 coff_SWAP_scnhdr_out,
692b7d62 5112 FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN,
252b5132
RH
5113#ifdef COFF_LONG_FILENAMES
5114 true,
5115#else
5116 false,
5117#endif
5118#ifdef COFF_LONG_SECTION_NAMES
5119 true,
5120#else
5121 false,
5122#endif
a022216b 5123 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
7f6d05e8
CP
5124#ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5125 true,
5126#else
5127 false,
5128#endif
5129#ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5130 4,
5131#else
5132 2,
5133#endif
252b5132
RH
5134 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5135 coff_SWAP_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook,
5136 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5137 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5138 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5d54c628 5139 coff_classify_symbol, coff_compute_section_file_positions,
252b5132
RH
5140 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5141 coff_adjust_symndx, coff_link_add_one_symbol,
5142 coff_link_output_has_begun, coff_final_link_postscript
5143};
5144
5145#ifndef coff_close_and_cleanup
5146#define coff_close_and_cleanup _bfd_generic_close_and_cleanup
5147#endif
5148
5149#ifndef coff_bfd_free_cached_info
5150#define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
5151#endif
5152
5153#ifndef coff_get_section_contents
5154#define coff_get_section_contents _bfd_generic_get_section_contents
5155#endif
5156
5157#ifndef coff_bfd_copy_private_symbol_data
5158#define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
5159#endif
5160
5161#ifndef coff_bfd_copy_private_section_data
5162#define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
5163#endif
5164
e60b52c6 5165#ifndef coff_bfd_copy_private_bfd_data
252b5132
RH
5166#define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
5167#endif
5168
5169#ifndef coff_bfd_merge_private_bfd_data
5170#define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
5171#endif
5172
5173#ifndef coff_bfd_set_private_flags
5174#define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
5175#endif
5176
e60b52c6 5177#ifndef coff_bfd_print_private_bfd_data
252b5132
RH
5178#define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
5179#endif
5180
5181#ifndef coff_bfd_is_local_label_name
5182#define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
5183#endif
5184
5185#ifndef coff_read_minisymbols
5186#define coff_read_minisymbols _bfd_generic_read_minisymbols
5187#endif
5188
5189#ifndef coff_minisymbol_to_symbol
5190#define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
5191#endif
5192
5193/* The reloc lookup routine must be supplied by each individual COFF
5194 backend. */
5195#ifndef coff_bfd_reloc_type_lookup
5196#define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5197#endif
5198
5199#ifndef coff_bfd_get_relocated_section_contents
5200#define coff_bfd_get_relocated_section_contents \
5201 bfd_generic_get_relocated_section_contents
5202#endif
5203
5204#ifndef coff_bfd_relax_section
5205#define coff_bfd_relax_section bfd_generic_relax_section
5206#endif
5207
5208#ifndef coff_bfd_gc_sections
5209#define coff_bfd_gc_sections bfd_generic_gc_sections
5210#endif
c3c89269 5211
8550eb6e
JJ
5212#ifndef coff_bfd_merge_sections
5213#define coff_bfd_merge_sections bfd_generic_merge_sections
5214#endif
5215
c3c89269 5216#define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE) \
4c117b10
ILT
5217const bfd_target VAR = \
5218{ \
5219 NAME , \
5220 bfd_target_coff_flavour, \
5221 BFD_ENDIAN_BIG, /* data byte order is big */ \
5222 BFD_ENDIAN_BIG, /* header byte order is big */ \
5223 /* object flags */ \
5224 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5225 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5226 /* section flags */ \
5227 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5228 UNDER, /* leading symbol underscore */ \
5229 '/', /* ar_pad_char */ \
5230 15, /* ar_max_namelen */ \
5231 \
5232 /* Data conversion functions. */ \
5233 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5234 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5235 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5236 \
5237 /* Header conversion functions. */ \
5238 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5239 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5240 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5241 \
5242 /* bfd_check_format */ \
5243 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5244 _bfd_dummy_target }, \
5245 /* bfd_set_format */ \
5246 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5247 /* bfd_write_contents */ \
5248 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5249 bfd_false }, \
5250 \
5251 BFD_JUMP_TABLE_GENERIC (coff), \
5252 BFD_JUMP_TABLE_COPY (coff), \
5253 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5254 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5255 BFD_JUMP_TABLE_SYMBOLS (coff), \
5256 BFD_JUMP_TABLE_RELOCS (coff), \
5257 BFD_JUMP_TABLE_WRITE (coff), \
5258 BFD_JUMP_TABLE_LINK (coff), \
5259 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5260 \
5261 ALTERNATIVE, \
5262 \
5263 COFF_SWAP_TABLE \
c3c89269
NC
5264};
5265
5266#define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE) \
4c117b10
ILT
5267const bfd_target VAR = \
5268{ \
5269 NAME , \
5270 bfd_target_coff_flavour, \
5271 BFD_ENDIAN_LITTLE, /* data byte order is little */ \
5272 BFD_ENDIAN_LITTLE, /* header byte order is little */ \
5273 /* object flags */ \
5274 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5275 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5276 /* section flags */ \
5277 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5278 UNDER, /* leading symbol underscore */ \
5279 '/', /* ar_pad_char */ \
5280 15, /* ar_max_namelen */ \
5281 \
5282 /* Data conversion functions. */ \
5283 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5284 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5285 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5286 /* Header conversion functions. */ \
5287 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5288 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5289 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5290 /* bfd_check_format */ \
5291 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5292 _bfd_dummy_target }, \
5293 /* bfd_set_format */ \
5294 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5295 /* bfd_write_contents */ \
5296 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5297 bfd_false }, \
5298 \
5299 BFD_JUMP_TABLE_GENERIC (coff), \
5300 BFD_JUMP_TABLE_COPY (coff), \
5301 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5302 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5303 BFD_JUMP_TABLE_SYMBOLS (coff), \
5304 BFD_JUMP_TABLE_RELOCS (coff), \
5305 BFD_JUMP_TABLE_WRITE (coff), \
5306 BFD_JUMP_TABLE_LINK (coff), \
5307 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5308 \
5309 ALTERNATIVE, \
5310 \
5311 COFF_SWAP_TABLE \
c3c89269 5312};
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