fix set but unused variable warnings
[binutils-gdb.git] / bfd / coffcode.h
1 /* Support for the generic parts of most COFF variants, for BFD.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
4 Free Software Foundation, Inc.
5 Written by Cygnus Support.
6
7 This file is part of BFD, the Binary File Descriptor library.
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
23
24 /* Most of this hacked by Steve Chamberlain,
25 sac@cygnus.com. */
26 /*
27 SECTION
28 coff backends
29
30 BFD supports a number of different flavours of coff format.
31 The major differences between formats are the sizes and
32 alignments of fields in structures on disk, and the occasional
33 extra field.
34
35 Coff in all its varieties is implemented with a few common
36 files and a number of implementation specific files. For
37 example, The 88k bcs coff format is implemented in the file
38 @file{coff-m88k.c}. This file @code{#include}s
39 @file{coff/m88k.h} which defines the external structure of the
40 coff format for the 88k, and @file{coff/internal.h} which
41 defines the internal structure. @file{coff-m88k.c} also
42 defines the relocations used by the 88k format
43 @xref{Relocations}.
44
45 The Intel i960 processor version of coff is implemented in
46 @file{coff-i960.c}. This file has the same structure as
47 @file{coff-m88k.c}, except that it includes @file{coff/i960.h}
48 rather than @file{coff-m88k.h}.
49
50 SUBSECTION
51 Porting to a new version of coff
52
53 The recommended method is to select from the existing
54 implementations the version of coff which is most like the one
55 you want to use. For example, we'll say that i386 coff is
56 the one you select, and that your coff flavour is called foo.
57 Copy @file{i386coff.c} to @file{foocoff.c}, copy
58 @file{../include/coff/i386.h} to @file{../include/coff/foo.h},
59 and add the lines to @file{targets.c} and @file{Makefile.in}
60 so that your new back end is used. Alter the shapes of the
61 structures in @file{../include/coff/foo.h} so that they match
62 what you need. You will probably also have to add
63 @code{#ifdef}s to the code in @file{coff/internal.h} and
64 @file{coffcode.h} if your version of coff is too wild.
65
66 You can verify that your new BFD backend works quite simply by
67 building @file{objdump} from the @file{binutils} directory,
68 and making sure that its version of what's going on and your
69 host system's idea (assuming it has the pretty standard coff
70 dump utility, usually called @code{att-dump} or just
71 @code{dump}) are the same. Then clean up your code, and send
72 what you've done to Cygnus. Then your stuff will be in the
73 next release, and you won't have to keep integrating it.
74
75 SUBSECTION
76 How the coff backend works
77
78 SUBSUBSECTION
79 File layout
80
81 The Coff backend is split into generic routines that are
82 applicable to any Coff target and routines that are specific
83 to a particular target. The target-specific routines are
84 further split into ones which are basically the same for all
85 Coff targets except that they use the external symbol format
86 or use different values for certain constants.
87
88 The generic routines are in @file{coffgen.c}. These routines
89 work for any Coff target. They use some hooks into the target
90 specific code; the hooks are in a @code{bfd_coff_backend_data}
91 structure, one of which exists for each target.
92
93 The essentially similar target-specific routines are in
94 @file{coffcode.h}. This header file includes executable C code.
95 The various Coff targets first include the appropriate Coff
96 header file, make any special defines that are needed, and
97 then include @file{coffcode.h}.
98
99 Some of the Coff targets then also have additional routines in
100 the target source file itself.
101
102 For example, @file{coff-i960.c} includes
103 @file{coff/internal.h} and @file{coff/i960.h}. It then
104 defines a few constants, such as @code{I960}, and includes
105 @file{coffcode.h}. Since the i960 has complex relocation
106 types, @file{coff-i960.c} also includes some code to
107 manipulate the i960 relocs. This code is not in
108 @file{coffcode.h} because it would not be used by any other
109 target.
110
111 SUBSUBSECTION
112 Coff long section names
113
114 In the standard Coff object format, section names are limited to
115 the eight bytes available in the @code{s_name} field of the
116 @code{SCNHDR} section header structure. The format requires the
117 field to be NUL-padded, but not necessarily NUL-terminated, so
118 the longest section names permitted are a full eight characters.
119
120 The Microsoft PE variants of the Coff object file format add
121 an extension to support the use of long section names. This
122 extension is defined in section 4 of the Microsoft PE/COFF
123 specification (rev 8.1). If a section name is too long to fit
124 into the section header's @code{s_name} field, it is instead
125 placed into the string table, and the @code{s_name} field is
126 filled with a slash ("/") followed by the ASCII decimal
127 representation of the offset of the full name relative to the
128 string table base.
129
130 Note that this implies that the extension can only be used in object
131 files, as executables do not contain a string table. The standard
132 specifies that long section names from objects emitted into executable
133 images are to be truncated.
134
135 However, as a GNU extension, BFD can generate executable images
136 that contain a string table and long section names. This
137 would appear to be technically valid, as the standard only says
138 that Coff debugging information is deprecated, not forbidden,
139 and in practice it works, although some tools that parse PE files
140 expecting the MS standard format may become confused; @file{PEview} is
141 one known example.
142
143 The functionality is supported in BFD by code implemented under
144 the control of the macro @code{COFF_LONG_SECTION_NAMES}. If not
145 defined, the format does not support long section names in any way.
146 If defined, it is used to initialise a flag,
147 @code{_bfd_coff_long_section_names}, and a hook function pointer,
148 @code{_bfd_coff_set_long_section_names}, in the Coff backend data
149 structure. The flag controls the generation of long section names
150 in output BFDs at runtime; if it is false, as it will be by default
151 when generating an executable image, long section names are truncated;
152 if true, the long section names extension is employed. The hook
153 points to a function that allows the value of the flag to be altered
154 at runtime, on formats that support long section names at all; on
155 other formats it points to a stub that returns an error indication.
156
157 With input BFDs, the flag is set according to whether any long section
158 names are detected while reading the section headers. For a completely
159 new BFD, the flag is set to the default for the target format. This
160 information can be used by a client of the BFD library when deciding
161 what output format to generate, and means that a BFD that is opened
162 for read and subsequently converted to a writeable BFD and modified
163 in-place will retain whatever format it had on input.
164
165 If @code{COFF_LONG_SECTION_NAMES} is simply defined (blank), or is
166 defined to the value "1", then long section names are enabled by
167 default; if it is defined to the value zero, they are disabled by
168 default (but still accepted in input BFDs). The header @file{coffcode.h}
169 defines a macro, @code{COFF_DEFAULT_LONG_SECTION_NAMES}, which is
170 used in the backends to initialise the backend data structure fields
171 appropriately; see the comments for further detail.
172
173 SUBSUBSECTION
174 Bit twiddling
175
176 Each flavour of coff supported in BFD has its own header file
177 describing the external layout of the structures. There is also
178 an internal description of the coff layout, in
179 @file{coff/internal.h}. A major function of the
180 coff backend is swapping the bytes and twiddling the bits to
181 translate the external form of the structures into the normal
182 internal form. This is all performed in the
183 @code{bfd_swap}_@i{thing}_@i{direction} routines. Some
184 elements are different sizes between different versions of
185 coff; it is the duty of the coff version specific include file
186 to override the definitions of various packing routines in
187 @file{coffcode.h}. E.g., the size of line number entry in coff is
188 sometimes 16 bits, and sometimes 32 bits. @code{#define}ing
189 @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the
190 correct one. No doubt, some day someone will find a version of
191 coff which has a varying field size not catered to at the
192 moment. To port BFD, that person will have to add more @code{#defines}.
193 Three of the bit twiddling routines are exported to
194 @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in}
195 and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol
196 table on its own, but uses BFD to fix things up. More of the
197 bit twiddlers are exported for @code{gas};
198 @code{coff_swap_aux_out}, @code{coff_swap_sym_out},
199 @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out},
200 @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out},
201 @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track
202 of all the symbol table and reloc drudgery itself, thereby
203 saving the internal BFD overhead, but uses BFD to swap things
204 on the way out, making cross ports much safer. Doing so also
205 allows BFD (and thus the linker) to use the same header files
206 as @code{gas}, which makes one avenue to disaster disappear.
207
208 SUBSUBSECTION
209 Symbol reading
210
211 The simple canonical form for symbols used by BFD is not rich
212 enough to keep all the information available in a coff symbol
213 table. The back end gets around this problem by keeping the original
214 symbol table around, "behind the scenes".
215
216 When a symbol table is requested (through a call to
217 @code{bfd_canonicalize_symtab}), a request gets through to
218 @code{coff_get_normalized_symtab}. This reads the symbol table from
219 the coff file and swaps all the structures inside into the
220 internal form. It also fixes up all the pointers in the table
221 (represented in the file by offsets from the first symbol in
222 the table) into physical pointers to elements in the new
223 internal table. This involves some work since the meanings of
224 fields change depending upon context: a field that is a
225 pointer to another structure in the symbol table at one moment
226 may be the size in bytes of a structure at the next. Another
227 pass is made over the table. All symbols which mark file names
228 (<<C_FILE>> symbols) are modified so that the internal
229 string points to the value in the auxent (the real filename)
230 rather than the normal text associated with the symbol
231 (@code{".file"}).
232
233 At this time the symbol names are moved around. Coff stores
234 all symbols less than nine characters long physically
235 within the symbol table; longer strings are kept at the end of
236 the file in the string table. This pass moves all strings
237 into memory and replaces them with pointers to the strings.
238
239 The symbol table is massaged once again, this time to create
240 the canonical table used by the BFD application. Each symbol
241 is inspected in turn, and a decision made (using the
242 @code{sclass} field) about the various flags to set in the
243 @code{asymbol}. @xref{Symbols}. The generated canonical table
244 shares strings with the hidden internal symbol table.
245
246 Any linenumbers are read from the coff file too, and attached
247 to the symbols which own the functions the linenumbers belong to.
248
249 SUBSUBSECTION
250 Symbol writing
251
252 Writing a symbol to a coff file which didn't come from a coff
253 file will lose any debugging information. The @code{asymbol}
254 structure remembers the BFD from which the symbol was taken, and on
255 output the back end makes sure that the same destination target as
256 source target is present.
257
258 When the symbols have come from a coff file then all the
259 debugging information is preserved.
260
261 Symbol tables are provided for writing to the back end in a
262 vector of pointers to pointers. This allows applications like
263 the linker to accumulate and output large symbol tables
264 without having to do too much byte copying.
265
266 This function runs through the provided symbol table and
267 patches each symbol marked as a file place holder
268 (@code{C_FILE}) to point to the next file place holder in the
269 list. It also marks each @code{offset} field in the list with
270 the offset from the first symbol of the current symbol.
271
272 Another function of this procedure is to turn the canonical
273 value form of BFD into the form used by coff. Internally, BFD
274 expects symbol values to be offsets from a section base; so a
275 symbol physically at 0x120, but in a section starting at
276 0x100, would have the value 0x20. Coff expects symbols to
277 contain their final value, so symbols have their values
278 changed at this point to reflect their sum with their owning
279 section. This transformation uses the
280 <<output_section>> field of the @code{asymbol}'s
281 @code{asection} @xref{Sections}.
282
283 o <<coff_mangle_symbols>>
284
285 This routine runs though the provided symbol table and uses
286 the offsets generated by the previous pass and the pointers
287 generated when the symbol table was read in to create the
288 structured hierarchy required by coff. It changes each pointer
289 to a symbol into the index into the symbol table of the asymbol.
290
291 o <<coff_write_symbols>>
292
293 This routine runs through the symbol table and patches up the
294 symbols from their internal form into the coff way, calls the
295 bit twiddlers, and writes out the table to the file.
296
297 */
298
299 /*
300 INTERNAL_DEFINITION
301 coff_symbol_type
302
303 DESCRIPTION
304 The hidden information for an <<asymbol>> is described in a
305 <<combined_entry_type>>:
306
307 CODE_FRAGMENT
308 .
309 .typedef struct coff_ptr_struct
310 .{
311 . {* Remembers the offset from the first symbol in the file for
312 . this symbol. Generated by coff_renumber_symbols. *}
313 . unsigned int offset;
314 .
315 . {* Should the value of this symbol be renumbered. Used for
316 . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *}
317 . unsigned int fix_value : 1;
318 .
319 . {* Should the tag field of this symbol be renumbered.
320 . Created by coff_pointerize_aux. *}
321 . unsigned int fix_tag : 1;
322 .
323 . {* Should the endidx field of this symbol be renumbered.
324 . Created by coff_pointerize_aux. *}
325 . unsigned int fix_end : 1;
326 .
327 . {* Should the x_csect.x_scnlen field be renumbered.
328 . Created by coff_pointerize_aux. *}
329 . unsigned int fix_scnlen : 1;
330 .
331 . {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the
332 . index into the line number entries. Set by coff_slurp_symbol_table. *}
333 . unsigned int fix_line : 1;
334 .
335 . {* The container for the symbol structure as read and translated
336 . from the file. *}
337 . union
338 . {
339 . union internal_auxent auxent;
340 . struct internal_syment syment;
341 . } u;
342 .} combined_entry_type;
343 .
344 .
345 .{* Each canonical asymbol really looks like this: *}
346 .
347 .typedef struct coff_symbol_struct
348 .{
349 . {* The actual symbol which the rest of BFD works with *}
350 . asymbol symbol;
351 .
352 . {* A pointer to the hidden information for this symbol *}
353 . combined_entry_type *native;
354 .
355 . {* A pointer to the linenumber information for this symbol *}
356 . struct lineno_cache_entry *lineno;
357 .
358 . {* Have the line numbers been relocated yet ? *}
359 . bfd_boolean done_lineno;
360 .} coff_symbol_type;
361
362 */
363
364 #include "libiberty.h"
365
366 #ifdef COFF_WITH_PE
367 #include "peicode.h"
368 #else
369 #include "coffswap.h"
370 #endif
371
372 #define STRING_SIZE_SIZE 4
373
374 #define DOT_DEBUG ".debug"
375 #define GNU_LINKONCE_WI ".gnu.linkonce.wi."
376 #define DOT_RELOC ".reloc"
377
378 #if defined (COFF_LONG_SECTION_NAMES)
379 /* Needed to expand the inputs to BLANKOR1TOODD. */
380 #define COFFLONGSECTIONCATHELPER(x,y) x ## y
381 /* If the input macro Y is blank or '1', return an odd number; if it is
382 '0', return an even number. Result undefined in all other cases. */
383 #define BLANKOR1TOODD(y) COFFLONGSECTIONCATHELPER(1,y)
384 /* Defined to numerical 0 or 1 according to whether generation of long
385 section names is disabled or enabled by default. */
386 #define COFF_ENABLE_LONG_SECTION_NAMES (BLANKOR1TOODD(COFF_LONG_SECTION_NAMES) & 1)
387 /* Where long section names are supported, we allow them to be enabled
388 and disabled at runtime, so select an appropriate hook function for
389 _bfd_coff_set_long_section_names. */
390 #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_allowed
391 #else /* !defined (COFF_LONG_SECTION_NAMES) */
392 /* If long section names are not supported, this stub disallows any
393 attempt to enable them at run-time. */
394 #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_disallowed
395 #endif /* defined (COFF_LONG_SECTION_NAMES) */
396
397 /* Define a macro that can be used to initialise both the fields relating
398 to long section names in the backend data struct simultaneously. */
399 #if COFF_ENABLE_LONG_SECTION_NAMES
400 #define COFF_DEFAULT_LONG_SECTION_NAMES (TRUE), COFF_LONG_SECTION_NAMES_SETTER
401 #else /* !COFF_ENABLE_LONG_SECTION_NAMES */
402 #define COFF_DEFAULT_LONG_SECTION_NAMES (FALSE), COFF_LONG_SECTION_NAMES_SETTER
403 #endif /* COFF_ENABLE_LONG_SECTION_NAMES */
404
405 #if defined (COFF_LONG_SECTION_NAMES)
406 static bfd_boolean bfd_coff_set_long_section_names_allowed
407 (bfd *, int);
408 #else /* !defined (COFF_LONG_SECTION_NAMES) */
409 static bfd_boolean bfd_coff_set_long_section_names_disallowed
410 (bfd *, int);
411 #endif /* defined (COFF_LONG_SECTION_NAMES) */
412 static long sec_to_styp_flags
413 (const char *, flagword);
414 static bfd_boolean styp_to_sec_flags
415 (bfd *, void *, const char *, asection *, flagword *);
416 static bfd_boolean coff_bad_format_hook
417 (bfd *, void *);
418 static void coff_set_custom_section_alignment
419 (bfd *, asection *, const struct coff_section_alignment_entry *,
420 const unsigned int);
421 static bfd_boolean coff_new_section_hook
422 (bfd *, asection *);
423 static bfd_boolean coff_set_arch_mach_hook
424 (bfd *, void *);
425 static bfd_boolean coff_write_relocs
426 (bfd *, int);
427 static bfd_boolean coff_set_flags
428 (bfd *, unsigned int *, unsigned short *);
429 static bfd_boolean coff_set_arch_mach
430 (bfd *, enum bfd_architecture, unsigned long) ATTRIBUTE_UNUSED;
431 static bfd_boolean coff_compute_section_file_positions
432 (bfd *);
433 static bfd_boolean coff_write_object_contents
434 (bfd *) ATTRIBUTE_UNUSED;
435 static bfd_boolean coff_set_section_contents
436 (bfd *, asection *, const void *, file_ptr, bfd_size_type);
437 static void * buy_and_read
438 (bfd *, file_ptr, bfd_size_type);
439 static bfd_boolean coff_slurp_line_table
440 (bfd *, asection *);
441 static bfd_boolean coff_slurp_symbol_table
442 (bfd *);
443 static enum coff_symbol_classification coff_classify_symbol
444 (bfd *, struct internal_syment *);
445 static bfd_boolean coff_slurp_reloc_table
446 (bfd *, asection *, asymbol **);
447 static long coff_canonicalize_reloc
448 (bfd *, asection *, arelent **, asymbol **);
449 #ifndef coff_mkobject_hook
450 static void * coff_mkobject_hook
451 (bfd *, void *, void *);
452 #endif
453 #ifdef COFF_WITH_PE
454 static flagword handle_COMDAT
455 (bfd *, flagword, void *, const char *, asection *);
456 #endif
457 #ifdef COFF_IMAGE_WITH_PE
458 static bfd_boolean coff_read_word
459 (bfd *, unsigned int *);
460 static unsigned int coff_compute_checksum
461 (bfd *);
462 static bfd_boolean coff_apply_checksum
463 (bfd *);
464 #endif
465 #ifdef TICOFF
466 static bfd_boolean ticoff0_bad_format_hook
467 (bfd *, void * );
468 static bfd_boolean ticoff1_bad_format_hook
469 (bfd *, void * );
470 #endif
471 \f
472 /* void warning(); */
473
474 #if defined (COFF_LONG_SECTION_NAMES)
475 static bfd_boolean
476 bfd_coff_set_long_section_names_allowed (bfd *abfd, int enable)
477 {
478 coff_backend_info (abfd)->_bfd_coff_long_section_names = enable;
479 return TRUE;
480 }
481 #else /* !defined (COFF_LONG_SECTION_NAMES) */
482 static bfd_boolean
483 bfd_coff_set_long_section_names_disallowed (bfd *abfd, int enable)
484 {
485 (void) abfd;
486 (void) enable;
487 return FALSE;
488 }
489 #endif /* defined (COFF_LONG_SECTION_NAMES) */
490
491 /* Return a word with STYP_* (scnhdr.s_flags) flags set to represent
492 the incoming SEC_* flags. The inverse of this function is
493 styp_to_sec_flags(). NOTE: If you add to/change this routine, you
494 should probably mirror the changes in styp_to_sec_flags(). */
495
496 #ifndef COFF_WITH_PE
497
498 /* Macros for setting debugging flags. */
499
500 #ifdef STYP_DEBUG
501 #define STYP_XCOFF_DEBUG STYP_DEBUG
502 #else
503 #define STYP_XCOFF_DEBUG STYP_INFO
504 #endif
505
506 #ifdef COFF_ALIGN_IN_S_FLAGS
507 #define STYP_DEBUG_INFO STYP_DSECT
508 #else
509 #define STYP_DEBUG_INFO STYP_INFO
510 #endif
511
512 static long
513 sec_to_styp_flags (const char *sec_name, flagword sec_flags)
514 {
515 long styp_flags = 0;
516
517 if (!strcmp (sec_name, _TEXT))
518 {
519 styp_flags = STYP_TEXT;
520 }
521 else if (!strcmp (sec_name, _DATA))
522 {
523 styp_flags = STYP_DATA;
524 }
525 else if (!strcmp (sec_name, _BSS))
526 {
527 styp_flags = STYP_BSS;
528 #ifdef _COMMENT
529 }
530 else if (!strcmp (sec_name, _COMMENT))
531 {
532 styp_flags = STYP_INFO;
533 #endif /* _COMMENT */
534 #ifdef _LIB
535 }
536 else if (!strcmp (sec_name, _LIB))
537 {
538 styp_flags = STYP_LIB;
539 #endif /* _LIB */
540 #ifdef _LIT
541 }
542 else if (!strcmp (sec_name, _LIT))
543 {
544 styp_flags = STYP_LIT;
545 #endif /* _LIT */
546 }
547 else if (CONST_STRNEQ (sec_name, DOT_DEBUG))
548 {
549 /* Handle the XCOFF debug section and DWARF2 debug sections. */
550 if (!sec_name[6])
551 styp_flags = STYP_XCOFF_DEBUG;
552 else
553 styp_flags = STYP_DEBUG_INFO;
554 }
555 else if (CONST_STRNEQ (sec_name, ".stab"))
556 {
557 styp_flags = STYP_DEBUG_INFO;
558 }
559 #ifdef COFF_LONG_SECTION_NAMES
560 else if (CONST_STRNEQ (sec_name, GNU_LINKONCE_WI))
561 {
562 styp_flags = STYP_DEBUG_INFO;
563 }
564 #endif
565 #ifdef RS6000COFF_C
566 else if (!strcmp (sec_name, _PAD))
567 {
568 styp_flags = STYP_PAD;
569 }
570 else if (!strcmp (sec_name, _LOADER))
571 {
572 styp_flags = STYP_LOADER;
573 }
574 else if (!strcmp (sec_name, _EXCEPT))
575 {
576 styp_flags = STYP_EXCEPT;
577 }
578 else if (!strcmp (sec_name, _TYPCHK))
579 {
580 styp_flags = STYP_TYPCHK;
581 }
582 #endif
583 /* Try and figure out what it should be */
584 else if (sec_flags & SEC_CODE)
585 {
586 styp_flags = STYP_TEXT;
587 }
588 else if (sec_flags & SEC_DATA)
589 {
590 styp_flags = STYP_DATA;
591 }
592 else if (sec_flags & SEC_READONLY)
593 {
594 #ifdef STYP_LIT /* 29k readonly text/data section */
595 styp_flags = STYP_LIT;
596 #else
597 styp_flags = STYP_TEXT;
598 #endif /* STYP_LIT */
599 }
600 else if (sec_flags & SEC_LOAD)
601 {
602 styp_flags = STYP_TEXT;
603 }
604 else if (sec_flags & SEC_ALLOC)
605 {
606 styp_flags = STYP_BSS;
607 }
608
609 #ifdef STYP_CLINK
610 if (sec_flags & SEC_TIC54X_CLINK)
611 styp_flags |= STYP_CLINK;
612 #endif
613
614 #ifdef STYP_BLOCK
615 if (sec_flags & SEC_TIC54X_BLOCK)
616 styp_flags |= STYP_BLOCK;
617 #endif
618
619 #ifdef STYP_NOLOAD
620 if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0)
621 styp_flags |= STYP_NOLOAD;
622 #endif
623
624 return styp_flags;
625 }
626
627 #else /* COFF_WITH_PE */
628
629 /* The PE version; see above for the general comments. The non-PE
630 case seems to be more guessing, and breaks PE format; specifically,
631 .rdata is readonly, but it sure ain't text. Really, all this
632 should be set up properly in gas (or whatever assembler is in use),
633 and honor whatever objcopy/strip, etc. sent us as input. */
634
635 static long
636 sec_to_styp_flags (const char *sec_name, flagword sec_flags)
637 {
638 long styp_flags = 0;
639
640 /* caution: there are at least three groups of symbols that have
641 very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*.
642 SEC_* are the BFD internal flags, used for generic BFD
643 information. STYP_* are the COFF section flags which appear in
644 COFF files. IMAGE_SCN_* are the PE section flags which appear in
645 PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap,
646 but there are more IMAGE_SCN_* flags. */
647
648 /* FIXME: There is no gas syntax to specify the debug section flag. */
649 if (CONST_STRNEQ (sec_name, DOT_DEBUG)
650 || CONST_STRNEQ (sec_name, GNU_LINKONCE_WI))
651 sec_flags = SEC_DEBUGGING | SEC_READONLY;
652
653 /* skip LOAD */
654 /* READONLY later */
655 /* skip RELOC */
656 if ((sec_flags & SEC_CODE) != 0)
657 styp_flags |= IMAGE_SCN_CNT_CODE;
658 if ((sec_flags & SEC_DATA) != 0)
659 styp_flags |= IMAGE_SCN_CNT_INITIALIZED_DATA;
660 if ((sec_flags & SEC_ALLOC) != 0 && (sec_flags & SEC_LOAD) == 0)
661 styp_flags |= IMAGE_SCN_CNT_UNINITIALIZED_DATA; /* ==STYP_BSS */
662 /* skip ROM */
663 /* skip constRUCTOR */
664 /* skip CONTENTS */
665 if ((sec_flags & SEC_IS_COMMON) != 0)
666 styp_flags |= IMAGE_SCN_LNK_COMDAT;
667 if ((sec_flags & SEC_DEBUGGING) != 0)
668 styp_flags |= IMAGE_SCN_MEM_DISCARDABLE;
669 if ((sec_flags & SEC_EXCLUDE) != 0)
670 styp_flags |= IMAGE_SCN_LNK_REMOVE;
671 if ((sec_flags & SEC_NEVER_LOAD) != 0)
672 styp_flags |= IMAGE_SCN_LNK_REMOVE;
673 /* skip IN_MEMORY */
674 /* skip SORT */
675 if (sec_flags & SEC_LINK_ONCE)
676 styp_flags |= IMAGE_SCN_LNK_COMDAT;
677 /* skip LINK_DUPLICATES */
678 /* skip LINKER_CREATED */
679
680 if ((sec_flags & SEC_COFF_NOREAD) == 0)
681 styp_flags |= IMAGE_SCN_MEM_READ; /* Invert NOREAD for read. */
682 if ((sec_flags & SEC_READONLY) == 0)
683 styp_flags |= IMAGE_SCN_MEM_WRITE; /* Invert READONLY for write. */
684 if (sec_flags & SEC_CODE)
685 styp_flags |= IMAGE_SCN_MEM_EXECUTE; /* CODE->EXECUTE. */
686 if (sec_flags & SEC_COFF_SHARED)
687 styp_flags |= IMAGE_SCN_MEM_SHARED; /* Shared remains meaningful. */
688
689 return styp_flags;
690 }
691
692 #endif /* COFF_WITH_PE */
693
694 /* Return a word with SEC_* flags set to represent the incoming STYP_*
695 flags (from scnhdr.s_flags). The inverse of this function is
696 sec_to_styp_flags(). NOTE: If you add to/change this routine, you
697 should probably mirror the changes in sec_to_styp_flags(). */
698
699 #ifndef COFF_WITH_PE
700
701 static bfd_boolean
702 styp_to_sec_flags (bfd *abfd ATTRIBUTE_UNUSED,
703 void * hdr,
704 const char *name,
705 asection *section ATTRIBUTE_UNUSED,
706 flagword *flags_ptr)
707 {
708 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
709 long styp_flags = internal_s->s_flags;
710 flagword sec_flags = 0;
711
712 #ifdef STYP_BLOCK
713 if (styp_flags & STYP_BLOCK)
714 sec_flags |= SEC_TIC54X_BLOCK;
715 #endif
716
717 #ifdef STYP_CLINK
718 if (styp_flags & STYP_CLINK)
719 sec_flags |= SEC_TIC54X_CLINK;
720 #endif
721
722 #ifdef STYP_NOLOAD
723 if (styp_flags & STYP_NOLOAD)
724 sec_flags |= SEC_NEVER_LOAD;
725 #endif /* STYP_NOLOAD */
726
727 /* For 386 COFF, at least, an unloadable text or data section is
728 actually a shared library section. */
729 if (styp_flags & STYP_TEXT)
730 {
731 if (sec_flags & SEC_NEVER_LOAD)
732 sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY;
733 else
734 sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
735 }
736 else if (styp_flags & STYP_DATA)
737 {
738 if (sec_flags & SEC_NEVER_LOAD)
739 sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
740 else
741 sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
742 }
743 else if (styp_flags & STYP_BSS)
744 {
745 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
746 if (sec_flags & SEC_NEVER_LOAD)
747 sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY;
748 else
749 #endif
750 sec_flags |= SEC_ALLOC;
751 }
752 else if (styp_flags & STYP_INFO)
753 {
754 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
755 defined. coff_compute_section_file_positions uses
756 COFF_PAGE_SIZE to ensure that the low order bits of the
757 section VMA and the file offset match. If we don't know
758 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
759 and demand page loading of the file will fail. */
760 #if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS)
761 sec_flags |= SEC_DEBUGGING;
762 #endif
763 }
764 else if (styp_flags & STYP_PAD)
765 sec_flags = 0;
766 else if (strcmp (name, _TEXT) == 0)
767 {
768 if (sec_flags & SEC_NEVER_LOAD)
769 sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY;
770 else
771 sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
772 }
773 else if (strcmp (name, _DATA) == 0)
774 {
775 if (sec_flags & SEC_NEVER_LOAD)
776 sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
777 else
778 sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
779 }
780 else if (strcmp (name, _BSS) == 0)
781 {
782 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
783 if (sec_flags & SEC_NEVER_LOAD)
784 sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY;
785 else
786 #endif
787 sec_flags |= SEC_ALLOC;
788 }
789 else if (CONST_STRNEQ (name, DOT_DEBUG)
790 #ifdef _COMMENT
791 || strcmp (name, _COMMENT) == 0
792 #endif
793 #ifdef COFF_LONG_SECTION_NAMES
794 || CONST_STRNEQ (name, GNU_LINKONCE_WI)
795 #endif
796 || CONST_STRNEQ (name, ".stab"))
797 {
798 #ifdef COFF_PAGE_SIZE
799 sec_flags |= SEC_DEBUGGING;
800 #endif
801 }
802 #ifdef _LIB
803 else if (strcmp (name, _LIB) == 0)
804 ;
805 #endif
806 #ifdef _LIT
807 else if (strcmp (name, _LIT) == 0)
808 sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY;
809 #endif
810 else
811 sec_flags |= SEC_ALLOC | SEC_LOAD;
812
813 #ifdef STYP_LIT /* A29k readonly text/data section type. */
814 if ((styp_flags & STYP_LIT) == STYP_LIT)
815 sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY);
816 #endif /* STYP_LIT */
817
818 #ifdef STYP_OTHER_LOAD /* Other loaded sections. */
819 if (styp_flags & STYP_OTHER_LOAD)
820 sec_flags = (SEC_LOAD | SEC_ALLOC);
821 #endif /* STYP_SDATA */
822
823 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
824 /* As a GNU extension, if the name begins with .gnu.linkonce, we
825 only link a single copy of the section. This is used to support
826 g++. g++ will emit each template expansion in its own section.
827 The symbols will be defined as weak, so that multiple definitions
828 are permitted. The GNU linker extension is to actually discard
829 all but one of the sections. */
830 if (CONST_STRNEQ (name, ".gnu.linkonce"))
831 sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
832 #endif
833
834 if (flags_ptr == NULL)
835 return FALSE;
836
837 * flags_ptr = sec_flags;
838 return TRUE;
839 }
840
841 #else /* COFF_WITH_PE */
842
843 static flagword
844 handle_COMDAT (bfd * abfd,
845 flagword sec_flags,
846 void * hdr,
847 const char *name,
848 asection *section)
849 {
850 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
851 bfd_byte *esymstart, *esym, *esymend;
852 int seen_state = 0;
853 char *target_name = NULL;
854
855 sec_flags |= SEC_LINK_ONCE;
856
857 /* Unfortunately, the PE format stores essential information in
858 the symbol table, of all places. We need to extract that
859 information now, so that objdump and the linker will know how
860 to handle the section without worrying about the symbols. We
861 can't call slurp_symtab, because the linker doesn't want the
862 swapped symbols. */
863
864 /* COMDAT sections are special. The first symbol is the section
865 symbol, which tells what kind of COMDAT section it is. The
866 second symbol is the "comdat symbol" - the one with the
867 unique name. GNU uses the section symbol for the unique
868 name; MS uses ".text" for every comdat section. Sigh. - DJ */
869
870 /* This is not mirrored in sec_to_styp_flags(), but there
871 doesn't seem to be a need to, either, and it would at best be
872 rather messy. */
873
874 if (! _bfd_coff_get_external_symbols (abfd))
875 return sec_flags;
876
877 esymstart = esym = (bfd_byte *) obj_coff_external_syms (abfd);
878 esymend = esym + obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd);
879
880 while (esym < esymend)
881 {
882 struct internal_syment isym;
883 char buf[SYMNMLEN + 1];
884 const char *symname;
885
886 bfd_coff_swap_sym_in (abfd, esym, & isym);
887
888 if (sizeof (internal_s->s_name) > SYMNMLEN)
889 {
890 /* This case implies that the matching
891 symbol name will be in the string table. */
892 abort ();
893 }
894
895 if (isym.n_scnum == section->target_index)
896 {
897 /* According to the MSVC documentation, the first
898 TWO entries with the section # are both of
899 interest to us. The first one is the "section
900 symbol" (section name). The second is the comdat
901 symbol name. Here, we've found the first
902 qualifying entry; we distinguish it from the
903 second with a state flag.
904
905 In the case of gas-generated (at least until that
906 is fixed) .o files, it isn't necessarily the
907 second one. It may be some other later symbol.
908
909 Since gas also doesn't follow MS conventions and
910 emits the section similar to .text$<name>, where
911 <something> is the name we're looking for, we
912 distinguish the two as follows:
913
914 If the section name is simply a section name (no
915 $) we presume it's MS-generated, and look at
916 precisely the second symbol for the comdat name.
917 If the section name has a $, we assume it's
918 gas-generated, and look for <something> (whatever
919 follows the $) as the comdat symbol. */
920
921 /* All 3 branches use this. */
922 symname = _bfd_coff_internal_syment_name (abfd, &isym, buf);
923
924 if (symname == NULL)
925 abort ();
926
927 switch (seen_state)
928 {
929 case 0:
930 {
931 /* The first time we've seen the symbol. */
932 union internal_auxent aux;
933
934 /* If it isn't the stuff we're expecting, die;
935 The MS documentation is vague, but it
936 appears that the second entry serves BOTH
937 as the comdat symbol and the defining
938 symbol record (either C_STAT or C_EXT,
939 possibly with an aux entry with debug
940 information if it's a function.) It
941 appears the only way to find the second one
942 is to count. (On Intel, they appear to be
943 adjacent, but on Alpha, they have been
944 found separated.)
945
946 Here, we think we've found the first one,
947 but there's some checking we can do to be
948 sure. */
949
950 if (! ((isym.n_sclass == C_STAT
951 || isym.n_sclass == C_EXT)
952 && isym.n_type == T_NULL
953 && isym.n_value == 0))
954 abort ();
955
956 /* FIXME LATER: MSVC generates section names
957 like .text for comdats. Gas generates
958 names like .text$foo__Fv (in the case of a
959 function). See comment above for more. */
960
961 if (isym.n_sclass == C_STAT && strcmp (name, symname) != 0)
962 _bfd_error_handler (_("%B: warning: COMDAT symbol '%s' does not match section name '%s'"),
963 abfd, symname, name);
964
965 seen_state = 1;
966
967 /* This is the section symbol. */
968 bfd_coff_swap_aux_in (abfd, (esym + bfd_coff_symesz (abfd)),
969 isym.n_type, isym.n_sclass,
970 0, isym.n_numaux, & aux);
971
972 target_name = strchr (name, '$');
973 if (target_name != NULL)
974 {
975 /* Gas mode. */
976 seen_state = 2;
977 /* Skip the `$'. */
978 target_name += 1;
979 }
980
981 /* FIXME: Microsoft uses NODUPLICATES and
982 ASSOCIATIVE, but gnu uses ANY and
983 SAME_SIZE. Unfortunately, gnu doesn't do
984 the comdat symbols right. So, until we can
985 fix it to do the right thing, we are
986 temporarily disabling comdats for the MS
987 types (they're used in DLLs and C++, but we
988 don't support *their* C++ libraries anyway
989 - DJ. */
990
991 /* Cygwin does not follow the MS style, and
992 uses ANY and SAME_SIZE where NODUPLICATES
993 and ASSOCIATIVE should be used. For
994 Interix, we just do the right thing up
995 front. */
996
997 switch (aux.x_scn.x_comdat)
998 {
999 case IMAGE_COMDAT_SELECT_NODUPLICATES:
1000 #ifdef STRICT_PE_FORMAT
1001 sec_flags |= SEC_LINK_DUPLICATES_ONE_ONLY;
1002 #else
1003 sec_flags &= ~SEC_LINK_ONCE;
1004 #endif
1005 break;
1006
1007 case IMAGE_COMDAT_SELECT_ANY:
1008 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
1009 break;
1010
1011 case IMAGE_COMDAT_SELECT_SAME_SIZE:
1012 sec_flags |= SEC_LINK_DUPLICATES_SAME_SIZE;
1013 break;
1014
1015 case IMAGE_COMDAT_SELECT_EXACT_MATCH:
1016 /* Not yet fully implemented ??? */
1017 sec_flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS;
1018 break;
1019
1020 /* debug$S gets this case; other
1021 implications ??? */
1022
1023 /* There may be no symbol... we'll search
1024 the whole table... Is this the right
1025 place to play this game? Or should we do
1026 it when reading it in. */
1027 case IMAGE_COMDAT_SELECT_ASSOCIATIVE:
1028 #ifdef STRICT_PE_FORMAT
1029 /* FIXME: This is not currently implemented. */
1030 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
1031 #else
1032 sec_flags &= ~SEC_LINK_ONCE;
1033 #endif
1034 break;
1035
1036 default: /* 0 means "no symbol" */
1037 /* debug$F gets this case; other
1038 implications ??? */
1039 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
1040 break;
1041 }
1042 }
1043 break;
1044
1045 case 2:
1046 /* Gas mode: the first matching on partial name. */
1047
1048 #ifndef TARGET_UNDERSCORE
1049 #define TARGET_UNDERSCORE 0
1050 #endif
1051 /* Is this the name we're looking for ? */
1052 if (strcmp (target_name,
1053 symname + (TARGET_UNDERSCORE ? 1 : 0)) != 0)
1054 {
1055 /* Not the name we're looking for */
1056 esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd);
1057 continue;
1058 }
1059 /* Fall through. */
1060 case 1:
1061 /* MSVC mode: the lexically second symbol (or
1062 drop through from the above). */
1063 {
1064 char *newname;
1065 bfd_size_type amt;
1066
1067 /* This must the second symbol with the
1068 section #. It is the actual symbol name.
1069 Intel puts the two adjacent, but Alpha (at
1070 least) spreads them out. */
1071
1072 amt = sizeof (struct coff_comdat_info);
1073 coff_section_data (abfd, section)->comdat
1074 = (struct coff_comdat_info *) bfd_alloc (abfd, amt);
1075 if (coff_section_data (abfd, section)->comdat == NULL)
1076 abort ();
1077
1078 coff_section_data (abfd, section)->comdat->symbol =
1079 (esym - esymstart) / bfd_coff_symesz (abfd);
1080
1081 amt = strlen (symname) + 1;
1082 newname = (char *) bfd_alloc (abfd, amt);
1083 if (newname == NULL)
1084 abort ();
1085
1086 strcpy (newname, symname);
1087 coff_section_data (abfd, section)->comdat->name
1088 = newname;
1089 }
1090
1091 goto breakloop;
1092 }
1093 }
1094
1095 esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd);
1096 }
1097
1098 breakloop:
1099 return sec_flags;
1100 }
1101
1102
1103 /* The PE version; see above for the general comments.
1104
1105 Since to set the SEC_LINK_ONCE and associated flags, we have to
1106 look at the symbol table anyway, we return the symbol table index
1107 of the symbol being used as the COMDAT symbol. This is admittedly
1108 ugly, but there's really nowhere else that we have access to the
1109 required information. FIXME: Is the COMDAT symbol index used for
1110 any purpose other than objdump? */
1111
1112 static bfd_boolean
1113 styp_to_sec_flags (bfd *abfd,
1114 void * hdr,
1115 const char *name,
1116 asection *section,
1117 flagword *flags_ptr)
1118 {
1119 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
1120 long styp_flags = internal_s->s_flags;
1121 flagword sec_flags;
1122 bfd_boolean result = TRUE;
1123
1124 /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */
1125 sec_flags = SEC_READONLY;
1126
1127 /* If section disallows read, then set the NOREAD flag. */
1128 if ((styp_flags & IMAGE_SCN_MEM_READ) == 0)
1129 sec_flags |= SEC_COFF_NOREAD;
1130
1131 /* Process each flag bit in styp_flags in turn. */
1132 while (styp_flags)
1133 {
1134 long flag = styp_flags & - styp_flags;
1135 char * unhandled = NULL;
1136
1137 styp_flags &= ~ flag;
1138
1139 /* We infer from the distinct read/write/execute bits the settings
1140 of some of the bfd flags; the actual values, should we need them,
1141 are also in pei_section_data (abfd, section)->pe_flags. */
1142
1143 switch (flag)
1144 {
1145 case STYP_DSECT:
1146 unhandled = "STYP_DSECT";
1147 break;
1148 case STYP_GROUP:
1149 unhandled = "STYP_GROUP";
1150 break;
1151 case STYP_COPY:
1152 unhandled = "STYP_COPY";
1153 break;
1154 case STYP_OVER:
1155 unhandled = "STYP_OVER";
1156 break;
1157 #ifdef SEC_NEVER_LOAD
1158 case STYP_NOLOAD:
1159 sec_flags |= SEC_NEVER_LOAD;
1160 break;
1161 #endif
1162 case IMAGE_SCN_MEM_READ:
1163 sec_flags &= ~SEC_COFF_NOREAD;
1164 break;
1165 case IMAGE_SCN_TYPE_NO_PAD:
1166 /* Skip. */
1167 break;
1168 case IMAGE_SCN_LNK_OTHER:
1169 unhandled = "IMAGE_SCN_LNK_OTHER";
1170 break;
1171 case IMAGE_SCN_MEM_NOT_CACHED:
1172 unhandled = "IMAGE_SCN_MEM_NOT_CACHED";
1173 break;
1174 case IMAGE_SCN_MEM_NOT_PAGED:
1175 /* Generate a warning message rather using the 'unhandled'
1176 variable as this will allow some .sys files generate by
1177 other toolchains to be processed. See bugzilla issue 196. */
1178 _bfd_error_handler (_("%B: Warning: Ignoring section flag IMAGE_SCN_MEM_NOT_PAGED in section %s"),
1179 abfd, name);
1180 break;
1181 case IMAGE_SCN_MEM_EXECUTE:
1182 sec_flags |= SEC_CODE;
1183 break;
1184 case IMAGE_SCN_MEM_WRITE:
1185 sec_flags &= ~ SEC_READONLY;
1186 break;
1187 case IMAGE_SCN_MEM_DISCARDABLE:
1188 /* The MS PE spec says that debug sections are DISCARDABLE,
1189 but the presence of a DISCARDABLE flag does not necessarily
1190 mean that a given section contains debug information. Thus
1191 we only set the SEC_DEBUGGING flag on sections that we
1192 recognise as containing debug information. */
1193 if (CONST_STRNEQ (name, DOT_DEBUG)
1194 #ifdef _COMMENT
1195 || strcmp (name, _COMMENT) == 0
1196 #endif
1197 #ifdef COFF_LONG_SECTION_NAMES
1198 || CONST_STRNEQ (name, GNU_LINKONCE_WI)
1199 #endif
1200 || CONST_STRNEQ (name, ".stab"))
1201 sec_flags |= SEC_DEBUGGING;
1202 break;
1203 case IMAGE_SCN_MEM_SHARED:
1204 sec_flags |= SEC_COFF_SHARED;
1205 break;
1206 case IMAGE_SCN_LNK_REMOVE:
1207 sec_flags |= SEC_EXCLUDE;
1208 break;
1209 case IMAGE_SCN_CNT_CODE:
1210 sec_flags |= SEC_CODE | SEC_ALLOC | SEC_LOAD;
1211 break;
1212 case IMAGE_SCN_CNT_INITIALIZED_DATA:
1213 sec_flags |= SEC_DATA | SEC_ALLOC | SEC_LOAD;
1214 break;
1215 case IMAGE_SCN_CNT_UNINITIALIZED_DATA:
1216 sec_flags |= SEC_ALLOC;
1217 break;
1218 case IMAGE_SCN_LNK_INFO:
1219 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
1220 defined. coff_compute_section_file_positions uses
1221 COFF_PAGE_SIZE to ensure that the low order bits of the
1222 section VMA and the file offset match. If we don't know
1223 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
1224 and demand page loading of the file will fail. */
1225 #ifdef COFF_PAGE_SIZE
1226 sec_flags |= SEC_DEBUGGING;
1227 #endif
1228 break;
1229 case IMAGE_SCN_LNK_COMDAT:
1230 /* COMDAT gets very special treatment. */
1231 sec_flags = handle_COMDAT (abfd, sec_flags, hdr, name, section);
1232 break;
1233 default:
1234 /* Silently ignore for now. */
1235 break;
1236 }
1237
1238 /* If the section flag was not handled, report it here. */
1239 if (unhandled != NULL)
1240 {
1241 (*_bfd_error_handler)
1242 (_("%B (%s): Section flag %s (0x%x) ignored"),
1243 abfd, name, unhandled, flag);
1244 result = FALSE;
1245 }
1246 }
1247
1248 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
1249 /* As a GNU extension, if the name begins with .gnu.linkonce, we
1250 only link a single copy of the section. This is used to support
1251 g++. g++ will emit each template expansion in its own section.
1252 The symbols will be defined as weak, so that multiple definitions
1253 are permitted. The GNU linker extension is to actually discard
1254 all but one of the sections. */
1255 if (CONST_STRNEQ (name, ".gnu.linkonce"))
1256 sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
1257 #endif
1258
1259 if (flags_ptr)
1260 * flags_ptr = sec_flags;
1261
1262 return result;
1263 }
1264
1265 #endif /* COFF_WITH_PE */
1266
1267 #define get_index(symbol) ((symbol)->udata.i)
1268
1269 /*
1270 INTERNAL_DEFINITION
1271 bfd_coff_backend_data
1272
1273 CODE_FRAGMENT
1274
1275 .{* COFF symbol classifications. *}
1276 .
1277 .enum coff_symbol_classification
1278 .{
1279 . {* Global symbol. *}
1280 . COFF_SYMBOL_GLOBAL,
1281 . {* Common symbol. *}
1282 . COFF_SYMBOL_COMMON,
1283 . {* Undefined symbol. *}
1284 . COFF_SYMBOL_UNDEFINED,
1285 . {* Local symbol. *}
1286 . COFF_SYMBOL_LOCAL,
1287 . {* PE section symbol. *}
1288 . COFF_SYMBOL_PE_SECTION
1289 .};
1290 .
1291 Special entry points for gdb to swap in coff symbol table parts:
1292 .typedef struct
1293 .{
1294 . void (*_bfd_coff_swap_aux_in)
1295 . (bfd *, void *, int, int, int, int, void *);
1296 .
1297 . void (*_bfd_coff_swap_sym_in)
1298 . (bfd *, void *, void *);
1299 .
1300 . void (*_bfd_coff_swap_lineno_in)
1301 . (bfd *, void *, void *);
1302 .
1303 . unsigned int (*_bfd_coff_swap_aux_out)
1304 . (bfd *, void *, int, int, int, int, void *);
1305 .
1306 . unsigned int (*_bfd_coff_swap_sym_out)
1307 . (bfd *, void *, void *);
1308 .
1309 . unsigned int (*_bfd_coff_swap_lineno_out)
1310 . (bfd *, void *, void *);
1311 .
1312 . unsigned int (*_bfd_coff_swap_reloc_out)
1313 . (bfd *, void *, void *);
1314 .
1315 . unsigned int (*_bfd_coff_swap_filehdr_out)
1316 . (bfd *, void *, void *);
1317 .
1318 . unsigned int (*_bfd_coff_swap_aouthdr_out)
1319 . (bfd *, void *, void *);
1320 .
1321 . unsigned int (*_bfd_coff_swap_scnhdr_out)
1322 . (bfd *, void *, void *);
1323 .
1324 . unsigned int _bfd_filhsz;
1325 . unsigned int _bfd_aoutsz;
1326 . unsigned int _bfd_scnhsz;
1327 . unsigned int _bfd_symesz;
1328 . unsigned int _bfd_auxesz;
1329 . unsigned int _bfd_relsz;
1330 . unsigned int _bfd_linesz;
1331 . unsigned int _bfd_filnmlen;
1332 . bfd_boolean _bfd_coff_long_filenames;
1333 .
1334 . bfd_boolean _bfd_coff_long_section_names;
1335 . bfd_boolean (*_bfd_coff_set_long_section_names)
1336 . (bfd *, int);
1337 .
1338 . unsigned int _bfd_coff_default_section_alignment_power;
1339 . bfd_boolean _bfd_coff_force_symnames_in_strings;
1340 . unsigned int _bfd_coff_debug_string_prefix_length;
1341 .
1342 . void (*_bfd_coff_swap_filehdr_in)
1343 . (bfd *, void *, void *);
1344 .
1345 . void (*_bfd_coff_swap_aouthdr_in)
1346 . (bfd *, void *, void *);
1347 .
1348 . void (*_bfd_coff_swap_scnhdr_in)
1349 . (bfd *, void *, void *);
1350 .
1351 . void (*_bfd_coff_swap_reloc_in)
1352 . (bfd *abfd, void *, void *);
1353 .
1354 . bfd_boolean (*_bfd_coff_bad_format_hook)
1355 . (bfd *, void *);
1356 .
1357 . bfd_boolean (*_bfd_coff_set_arch_mach_hook)
1358 . (bfd *, void *);
1359 .
1360 . void * (*_bfd_coff_mkobject_hook)
1361 . (bfd *, void *, void *);
1362 .
1363 . bfd_boolean (*_bfd_styp_to_sec_flags_hook)
1364 . (bfd *, void *, const char *, asection *, flagword *);
1365 .
1366 . void (*_bfd_set_alignment_hook)
1367 . (bfd *, asection *, void *);
1368 .
1369 . bfd_boolean (*_bfd_coff_slurp_symbol_table)
1370 . (bfd *);
1371 .
1372 . bfd_boolean (*_bfd_coff_symname_in_debug)
1373 . (bfd *, struct internal_syment *);
1374 .
1375 . bfd_boolean (*_bfd_coff_pointerize_aux_hook)
1376 . (bfd *, combined_entry_type *, combined_entry_type *,
1377 . unsigned int, combined_entry_type *);
1378 .
1379 . bfd_boolean (*_bfd_coff_print_aux)
1380 . (bfd *, FILE *, combined_entry_type *, combined_entry_type *,
1381 . combined_entry_type *, unsigned int);
1382 .
1383 . void (*_bfd_coff_reloc16_extra_cases)
1384 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
1385 . bfd_byte *, unsigned int *, unsigned int *);
1386 .
1387 . int (*_bfd_coff_reloc16_estimate)
1388 . (bfd *, asection *, arelent *, unsigned int,
1389 . struct bfd_link_info *);
1390 .
1391 . enum coff_symbol_classification (*_bfd_coff_classify_symbol)
1392 . (bfd *, struct internal_syment *);
1393 .
1394 . bfd_boolean (*_bfd_coff_compute_section_file_positions)
1395 . (bfd *);
1396 .
1397 . bfd_boolean (*_bfd_coff_start_final_link)
1398 . (bfd *, struct bfd_link_info *);
1399 .
1400 . bfd_boolean (*_bfd_coff_relocate_section)
1401 . (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
1402 . struct internal_reloc *, struct internal_syment *, asection **);
1403 .
1404 . reloc_howto_type *(*_bfd_coff_rtype_to_howto)
1405 . (bfd *, asection *, struct internal_reloc *,
1406 . struct coff_link_hash_entry *, struct internal_syment *,
1407 . bfd_vma *);
1408 .
1409 . bfd_boolean (*_bfd_coff_adjust_symndx)
1410 . (bfd *, struct bfd_link_info *, bfd *, asection *,
1411 . struct internal_reloc *, bfd_boolean *);
1412 .
1413 . bfd_boolean (*_bfd_coff_link_add_one_symbol)
1414 . (struct bfd_link_info *, bfd *, const char *, flagword,
1415 . asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
1416 . struct bfd_link_hash_entry **);
1417 .
1418 . bfd_boolean (*_bfd_coff_link_output_has_begun)
1419 . (bfd *, struct coff_final_link_info *);
1420 .
1421 . bfd_boolean (*_bfd_coff_final_link_postscript)
1422 . (bfd *, struct coff_final_link_info *);
1423 .
1424 . bfd_boolean (*_bfd_coff_print_pdata)
1425 . (bfd *, void *);
1426 .
1427 .} bfd_coff_backend_data;
1428 .
1429 .#define coff_backend_info(abfd) \
1430 . ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
1431 .
1432 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
1433 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
1434 .
1435 .#define bfd_coff_swap_sym_in(a,e,i) \
1436 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
1437 .
1438 .#define bfd_coff_swap_lineno_in(a,e,i) \
1439 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
1440 .
1441 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
1442 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
1443 .
1444 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
1445 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
1446 .
1447 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
1448 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
1449 .
1450 .#define bfd_coff_swap_sym_out(abfd, i,o) \
1451 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
1452 .
1453 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
1454 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
1455 .
1456 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
1457 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
1458 .
1459 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
1460 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
1461 .
1462 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1463 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1464 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1465 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1466 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1467 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1468 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
1469 .#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
1470 .#define bfd_coff_long_filenames(abfd) \
1471 . (coff_backend_info (abfd)->_bfd_coff_long_filenames)
1472 .#define bfd_coff_long_section_names(abfd) \
1473 . (coff_backend_info (abfd)->_bfd_coff_long_section_names)
1474 .#define bfd_coff_set_long_section_names(abfd, enable) \
1475 . ((coff_backend_info (abfd)->_bfd_coff_set_long_section_names) (abfd, enable))
1476 .#define bfd_coff_default_section_alignment_power(abfd) \
1477 . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
1478 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
1479 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
1480 .
1481 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
1482 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
1483 .
1484 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
1485 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
1486 .
1487 .#define bfd_coff_swap_reloc_in(abfd, i, o) \
1488 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
1489 .
1490 .#define bfd_coff_bad_format_hook(abfd, filehdr) \
1491 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
1492 .
1493 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
1494 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
1495 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
1496 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\
1497 . (abfd, filehdr, aouthdr))
1498 .
1499 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
1500 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1501 . (abfd, scnhdr, name, section, flags_ptr))
1502 .
1503 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
1504 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
1505 .
1506 .#define bfd_coff_slurp_symbol_table(abfd)\
1507 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
1508 .
1509 .#define bfd_coff_symname_in_debug(abfd, sym)\
1510 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
1511 .
1512 .#define bfd_coff_force_symnames_in_strings(abfd)\
1513 . (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
1514 .
1515 .#define bfd_coff_debug_string_prefix_length(abfd)\
1516 . (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
1517 .
1518 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
1519 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1520 . (abfd, file, base, symbol, aux, indaux))
1521 .
1522 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\
1523 . reloc, data, src_ptr, dst_ptr)\
1524 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1525 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
1526 .
1527 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
1528 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1529 . (abfd, section, reloc, shrink, link_info))
1530 .
1531 .#define bfd_coff_classify_symbol(abfd, sym)\
1532 . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1533 . (abfd, sym))
1534 .
1535 .#define bfd_coff_compute_section_file_positions(abfd)\
1536 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1537 . (abfd))
1538 .
1539 .#define bfd_coff_start_final_link(obfd, info)\
1540 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1541 . (obfd, info))
1542 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
1543 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1544 . (obfd, info, ibfd, o, con, rel, isyms, secs))
1545 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
1546 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1547 . (abfd, sec, rel, h, sym, addendp))
1548 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
1549 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1550 . (obfd, info, ibfd, sec, rel, adjustedp))
1551 .#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\
1552 . value, string, cp, coll, hashp)\
1553 . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1554 . (info, abfd, name, flags, section, value, string, cp, coll, hashp))
1555 .
1556 .#define bfd_coff_link_output_has_begun(a,p) \
1557 . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a, p))
1558 .#define bfd_coff_final_link_postscript(a,p) \
1559 . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a, p))
1560 .
1561 .#define bfd_coff_have_print_pdata(a) \
1562 . (coff_backend_info (a)->_bfd_coff_print_pdata)
1563 .#define bfd_coff_print_pdata(a,p) \
1564 . ((coff_backend_info (a)->_bfd_coff_print_pdata) (a, p))
1565 .
1566 .{* Macro: Returns true if the bfd is a PE executable as opposed to a
1567 . PE object file. *}
1568 .#define bfd_pei_p(abfd) \
1569 . (CONST_STRNEQ ((abfd)->xvec->name, "pei-"))
1570 */
1571
1572 /* See whether the magic number matches. */
1573
1574 static bfd_boolean
1575 coff_bad_format_hook (bfd * abfd ATTRIBUTE_UNUSED, void * filehdr)
1576 {
1577 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1578
1579 if (BADMAG (*internal_f))
1580 return FALSE;
1581
1582 /* If the optional header is NULL or not the correct size then
1583 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1584 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1585 optional header is of a different size.
1586
1587 But the mips keeps extra stuff in it's opthdr, so dont check
1588 when doing that. */
1589
1590 #if defined(M88) || defined(I960)
1591 if (internal_f->f_opthdr != 0 && bfd_coff_aoutsz (abfd) != internal_f->f_opthdr)
1592 return FALSE;
1593 #endif
1594
1595 return TRUE;
1596 }
1597
1598 #ifdef TICOFF
1599 static bfd_boolean
1600 ticoff0_bad_format_hook (bfd *abfd ATTRIBUTE_UNUSED, void * filehdr)
1601 {
1602 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1603
1604 if (COFF0_BADMAG (*internal_f))
1605 return FALSE;
1606
1607 return TRUE;
1608 }
1609 #endif
1610
1611 #ifdef TICOFF
1612 static bfd_boolean
1613 ticoff1_bad_format_hook (bfd *abfd ATTRIBUTE_UNUSED, void * filehdr)
1614 {
1615 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1616
1617 if (COFF1_BADMAG (*internal_f))
1618 return FALSE;
1619
1620 return TRUE;
1621 }
1622 #endif
1623
1624 /* Check whether this section uses an alignment other than the
1625 default. */
1626
1627 static void
1628 coff_set_custom_section_alignment (bfd *abfd ATTRIBUTE_UNUSED,
1629 asection *section,
1630 const struct coff_section_alignment_entry *alignment_table,
1631 const unsigned int table_size)
1632 {
1633 const unsigned int default_alignment = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
1634 unsigned int i;
1635
1636 for (i = 0; i < table_size; ++i)
1637 {
1638 const char *secname = bfd_get_section_name (abfd, section);
1639
1640 if (alignment_table[i].comparison_length == (unsigned int) -1
1641 ? strcmp (alignment_table[i].name, secname) == 0
1642 : strncmp (alignment_table[i].name, secname,
1643 alignment_table[i].comparison_length) == 0)
1644 break;
1645 }
1646 if (i >= table_size)
1647 return;
1648
1649 if (alignment_table[i].default_alignment_min != COFF_ALIGNMENT_FIELD_EMPTY
1650 && default_alignment < alignment_table[i].default_alignment_min)
1651 return;
1652
1653 if (alignment_table[i].default_alignment_max != COFF_ALIGNMENT_FIELD_EMPTY
1654 #if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0
1655 && default_alignment > alignment_table[i].default_alignment_max
1656 #endif
1657 )
1658 return;
1659
1660 section->alignment_power = alignment_table[i].alignment_power;
1661 }
1662
1663 /* Custom section alignment records. */
1664
1665 static const struct coff_section_alignment_entry
1666 coff_section_alignment_table[] =
1667 {
1668 #ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1669 COFF_SECTION_ALIGNMENT_ENTRIES,
1670 #endif
1671 /* There must not be any gaps between .stabstr sections. */
1672 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1673 1, COFF_ALIGNMENT_FIELD_EMPTY, 0 },
1674 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1675 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1676 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 },
1677 /* Similarly for the .ctors and .dtors sections. */
1678 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1679 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 },
1680 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1681 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 }
1682 };
1683
1684 static const unsigned int coff_section_alignment_table_size =
1685 sizeof coff_section_alignment_table / sizeof coff_section_alignment_table[0];
1686
1687 /* Initialize a section structure with information peculiar to this
1688 particular implementation of COFF. */
1689
1690 static bfd_boolean
1691 coff_new_section_hook (bfd * abfd, asection * section)
1692 {
1693 combined_entry_type *native;
1694 bfd_size_type amt;
1695
1696 section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
1697
1698 #ifdef RS6000COFF_C
1699 if (bfd_xcoff_text_align_power (abfd) != 0
1700 && strcmp (bfd_get_section_name (abfd, section), ".text") == 0)
1701 section->alignment_power = bfd_xcoff_text_align_power (abfd);
1702 if (bfd_xcoff_data_align_power (abfd) != 0
1703 && strcmp (bfd_get_section_name (abfd, section), ".data") == 0)
1704 section->alignment_power = bfd_xcoff_data_align_power (abfd);
1705 #endif
1706
1707 /* Set up the section symbol. */
1708 if (!_bfd_generic_new_section_hook (abfd, section))
1709 return FALSE;
1710
1711 /* Allocate aux records for section symbols, to store size and
1712 related info.
1713
1714 @@ The 10 is a guess at a plausible maximum number of aux entries
1715 (but shouldn't be a constant). */
1716 amt = sizeof (combined_entry_type) * 10;
1717 native = (combined_entry_type *) bfd_zalloc (abfd, amt);
1718 if (native == NULL)
1719 return FALSE;
1720
1721 /* We don't need to set up n_name, n_value, or n_scnum in the native
1722 symbol information, since they'll be overridden by the BFD symbol
1723 anyhow. However, we do need to set the type and storage class,
1724 in case this symbol winds up getting written out. The value 0
1725 for n_numaux is already correct. */
1726
1727 native->u.syment.n_type = T_NULL;
1728 native->u.syment.n_sclass = C_STAT;
1729
1730 coffsymbol (section->symbol)->native = native;
1731
1732 coff_set_custom_section_alignment (abfd, section,
1733 coff_section_alignment_table,
1734 coff_section_alignment_table_size);
1735
1736 return TRUE;
1737 }
1738
1739 #ifdef COFF_ALIGN_IN_SECTION_HEADER
1740
1741 /* Set the alignment of a BFD section. */
1742
1743 static void
1744 coff_set_alignment_hook (bfd * abfd ATTRIBUTE_UNUSED,
1745 asection * section,
1746 void * scnhdr)
1747 {
1748 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1749 unsigned int i;
1750
1751 #ifdef I960
1752 /* Extract ALIGN from 2**ALIGN stored in section header. */
1753 for (i = 0; i < 32; i++)
1754 if ((1 << i) >= hdr->s_align)
1755 break;
1756 #endif
1757 #ifdef TIC80COFF
1758 /* TI tools puts the alignment power in bits 8-11. */
1759 i = (hdr->s_flags >> 8) & 0xF ;
1760 #endif
1761 #ifdef COFF_DECODE_ALIGNMENT
1762 i = COFF_DECODE_ALIGNMENT(hdr->s_flags);
1763 #endif
1764 section->alignment_power = i;
1765
1766 #ifdef coff_set_section_load_page
1767 coff_set_section_load_page (section, hdr->s_page);
1768 #endif
1769 }
1770
1771 #else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1772 #ifdef COFF_WITH_PE
1773
1774 static void
1775 coff_set_alignment_hook (bfd * abfd ATTRIBUTE_UNUSED,
1776 asection * section,
1777 void * scnhdr)
1778 {
1779 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1780 bfd_size_type amt;
1781 unsigned int alignment_power_const
1782 = hdr->s_flags & IMAGE_SCN_ALIGN_POWER_BIT_MASK;
1783
1784 switch (alignment_power_const)
1785 {
1786 case IMAGE_SCN_ALIGN_8192BYTES:
1787 case IMAGE_SCN_ALIGN_4096BYTES:
1788 case IMAGE_SCN_ALIGN_2048BYTES:
1789 case IMAGE_SCN_ALIGN_1024BYTES:
1790 case IMAGE_SCN_ALIGN_512BYTES:
1791 case IMAGE_SCN_ALIGN_256BYTES:
1792 case IMAGE_SCN_ALIGN_128BYTES:
1793 case IMAGE_SCN_ALIGN_64BYTES:
1794 case IMAGE_SCN_ALIGN_32BYTES:
1795 case IMAGE_SCN_ALIGN_16BYTES:
1796 case IMAGE_SCN_ALIGN_8BYTES:
1797 case IMAGE_SCN_ALIGN_4BYTES:
1798 case IMAGE_SCN_ALIGN_2BYTES:
1799 case IMAGE_SCN_ALIGN_1BYTES:
1800 section->alignment_power
1801 = IMAGE_SCN_ALIGN_POWER_NUM (alignment_power_const);
1802 break;
1803 default:
1804 break;
1805 }
1806
1807 /* In a PE image file, the s_paddr field holds the virtual size of a
1808 section, while the s_size field holds the raw size. We also keep
1809 the original section flag value, since not every bit can be
1810 mapped onto a generic BFD section bit. */
1811 if (coff_section_data (abfd, section) == NULL)
1812 {
1813 amt = sizeof (struct coff_section_tdata);
1814 section->used_by_bfd = bfd_zalloc (abfd, amt);
1815 if (section->used_by_bfd == NULL)
1816 /* FIXME: Return error. */
1817 abort ();
1818 }
1819
1820 if (pei_section_data (abfd, section) == NULL)
1821 {
1822 amt = sizeof (struct pei_section_tdata);
1823 coff_section_data (abfd, section)->tdata = bfd_zalloc (abfd, amt);
1824 if (coff_section_data (abfd, section)->tdata == NULL)
1825 /* FIXME: Return error. */
1826 abort ();
1827 }
1828 pei_section_data (abfd, section)->virt_size = hdr->s_paddr;
1829 pei_section_data (abfd, section)->pe_flags = hdr->s_flags;
1830
1831 section->lma = hdr->s_vaddr;
1832
1833 /* Check for extended relocs. */
1834 if (hdr->s_flags & IMAGE_SCN_LNK_NRELOC_OVFL)
1835 {
1836 struct external_reloc dst;
1837 struct internal_reloc n;
1838 file_ptr oldpos = bfd_tell (abfd);
1839 bfd_size_type relsz = bfd_coff_relsz (abfd);
1840
1841 bfd_seek (abfd, (file_ptr) hdr->s_relptr, 0);
1842 if (bfd_bread (& dst, relsz, abfd) != relsz)
1843 return;
1844
1845 coff_swap_reloc_in (abfd, &dst, &n);
1846 bfd_seek (abfd, oldpos, 0);
1847 section->reloc_count = hdr->s_nreloc = n.r_vaddr - 1;
1848 section->rel_filepos += relsz;
1849 }
1850 else if (hdr->s_nreloc == 0xffff)
1851 (*_bfd_error_handler)
1852 ("%s: warning: claims to have 0xffff relocs, without overflow",
1853 bfd_get_filename (abfd));
1854 }
1855 #undef ALIGN_SET
1856 #undef ELIFALIGN_SET
1857
1858 #else /* ! COFF_WITH_PE */
1859 #ifdef RS6000COFF_C
1860
1861 /* We grossly abuse this function to handle XCOFF overflow headers.
1862 When we see one, we correct the reloc and line number counts in the
1863 real header, and remove the section we just created. */
1864
1865 static void
1866 coff_set_alignment_hook (bfd *abfd, asection *section, void * scnhdr)
1867 {
1868 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1869 asection *real_sec;
1870
1871 if ((hdr->s_flags & STYP_OVRFLO) == 0)
1872 return;
1873
1874 real_sec = coff_section_from_bfd_index (abfd, (int) hdr->s_nreloc);
1875 if (real_sec == NULL)
1876 return;
1877
1878 real_sec->reloc_count = hdr->s_paddr;
1879 real_sec->lineno_count = hdr->s_vaddr;
1880
1881 if (!bfd_section_removed_from_list (abfd, section))
1882 {
1883 bfd_section_list_remove (abfd, section);
1884 --abfd->section_count;
1885 }
1886 }
1887
1888 #else /* ! RS6000COFF_C */
1889
1890 #define coff_set_alignment_hook \
1891 ((void (*) (bfd *, asection *, void *)) bfd_void)
1892
1893 #endif /* ! RS6000COFF_C */
1894 #endif /* ! COFF_WITH_PE */
1895 #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
1896
1897 #ifndef coff_mkobject
1898
1899 static bfd_boolean
1900 coff_mkobject (bfd * abfd)
1901 {
1902 coff_data_type *coff;
1903 bfd_size_type amt = sizeof (coff_data_type);
1904
1905 abfd->tdata.coff_obj_data = bfd_zalloc (abfd, amt);
1906 if (abfd->tdata.coff_obj_data == NULL)
1907 return FALSE;
1908 coff = coff_data (abfd);
1909 coff->symbols = NULL;
1910 coff->conversion_table = NULL;
1911 coff->raw_syments = NULL;
1912 coff->relocbase = 0;
1913 coff->local_toc_sym_map = 0;
1914
1915 /* make_abs_section(abfd);*/
1916
1917 return TRUE;
1918 }
1919 #endif
1920
1921 /* Create the COFF backend specific information. */
1922
1923 #ifndef coff_mkobject_hook
1924 static void *
1925 coff_mkobject_hook (bfd * abfd,
1926 void * filehdr,
1927 void * aouthdr ATTRIBUTE_UNUSED)
1928 {
1929 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1930 coff_data_type *coff;
1931
1932 if (! coff_mkobject (abfd))
1933 return NULL;
1934
1935 coff = coff_data (abfd);
1936
1937 coff->sym_filepos = internal_f->f_symptr;
1938
1939 /* These members communicate important constants about the symbol
1940 table to GDB's symbol-reading code. These `constants'
1941 unfortunately vary among coff implementations... */
1942 coff->local_n_btmask = N_BTMASK;
1943 coff->local_n_btshft = N_BTSHFT;
1944 coff->local_n_tmask = N_TMASK;
1945 coff->local_n_tshift = N_TSHIFT;
1946 coff->local_symesz = bfd_coff_symesz (abfd);
1947 coff->local_auxesz = bfd_coff_auxesz (abfd);
1948 coff->local_linesz = bfd_coff_linesz (abfd);
1949
1950 coff->timestamp = internal_f->f_timdat;
1951
1952 obj_raw_syment_count (abfd) =
1953 obj_conv_table_size (abfd) =
1954 internal_f->f_nsyms;
1955
1956 #ifdef RS6000COFF_C
1957 if ((internal_f->f_flags & F_SHROBJ) != 0)
1958 abfd->flags |= DYNAMIC;
1959 if (aouthdr != NULL && internal_f->f_opthdr >= bfd_coff_aoutsz (abfd))
1960 {
1961 struct internal_aouthdr *internal_a =
1962 (struct internal_aouthdr *) aouthdr;
1963 struct xcoff_tdata *xcoff;
1964
1965 xcoff = xcoff_data (abfd);
1966 # ifdef U803XTOCMAGIC
1967 xcoff->xcoff64 = internal_f->f_magic == U803XTOCMAGIC;
1968 # else
1969 xcoff->xcoff64 = 0;
1970 # endif
1971 xcoff->full_aouthdr = TRUE;
1972 xcoff->toc = internal_a->o_toc;
1973 xcoff->sntoc = internal_a->o_sntoc;
1974 xcoff->snentry = internal_a->o_snentry;
1975 bfd_xcoff_text_align_power (abfd) = internal_a->o_algntext;
1976 bfd_xcoff_data_align_power (abfd) = internal_a->o_algndata;
1977 xcoff->modtype = internal_a->o_modtype;
1978 xcoff->cputype = internal_a->o_cputype;
1979 xcoff->maxdata = internal_a->o_maxdata;
1980 xcoff->maxstack = internal_a->o_maxstack;
1981 }
1982 #endif
1983
1984 #ifdef ARM
1985 /* Set the flags field from the COFF header read in. */
1986 if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags))
1987 coff->flags = 0;
1988 #endif
1989
1990 #ifdef COFF_WITH_PE
1991 /* FIXME: I'm not sure this is ever executed, since peicode.h
1992 defines coff_mkobject_hook. */
1993 if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0)
1994 abfd->flags |= HAS_DEBUG;
1995 #endif
1996
1997 if ((internal_f->f_flags & F_GO32STUB) != 0)
1998 coff->go32stub = (char *) bfd_alloc (abfd, (bfd_size_type) GO32_STUBSIZE);
1999 if (coff->go32stub != NULL)
2000 memcpy (coff->go32stub, internal_f->go32stub, GO32_STUBSIZE);
2001
2002 return coff;
2003 }
2004 #endif
2005
2006 /* Determine the machine architecture and type. FIXME: This is target
2007 dependent because the magic numbers are defined in the target
2008 dependent header files. But there is no particular need for this.
2009 If the magic numbers were moved to a separate file, this function
2010 would be target independent and would also be much more successful
2011 at linking together COFF files for different architectures. */
2012
2013 static bfd_boolean
2014 coff_set_arch_mach_hook (bfd *abfd, void * filehdr)
2015 {
2016 unsigned long machine;
2017 enum bfd_architecture arch;
2018 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
2019
2020 /* Zero selects the default machine for an arch. */
2021 machine = 0;
2022 switch (internal_f->f_magic)
2023 {
2024 #ifdef OR32_MAGIC_BIG
2025 case OR32_MAGIC_BIG:
2026 case OR32_MAGIC_LITTLE:
2027 arch = bfd_arch_or32;
2028 break;
2029 #endif
2030 #ifdef PPCMAGIC
2031 case PPCMAGIC:
2032 arch = bfd_arch_powerpc;
2033 break;
2034 #endif
2035 #ifdef I386MAGIC
2036 case I386MAGIC:
2037 case I386PTXMAGIC:
2038 case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler. */
2039 case LYNXCOFFMAGIC: /* Shadows the m68k Lynx number below, sigh. */
2040 arch = bfd_arch_i386;
2041 break;
2042 #endif
2043 #ifdef AMD64MAGIC
2044 case AMD64MAGIC:
2045 arch = bfd_arch_i386;
2046 machine = bfd_mach_x86_64;
2047 break;
2048 #endif
2049 #ifdef IA64MAGIC
2050 case IA64MAGIC:
2051 arch = bfd_arch_ia64;
2052 break;
2053 #endif
2054 #ifdef ARMMAGIC
2055 case ARMMAGIC:
2056 case ARMPEMAGIC:
2057 case THUMBPEMAGIC:
2058 arch = bfd_arch_arm;
2059 machine = bfd_arm_get_mach_from_notes (abfd, ARM_NOTE_SECTION);
2060 if (machine == bfd_mach_arm_unknown)
2061 {
2062 switch (internal_f->f_flags & F_ARM_ARCHITECTURE_MASK)
2063 {
2064 case F_ARM_2: machine = bfd_mach_arm_2; break;
2065 case F_ARM_2a: machine = bfd_mach_arm_2a; break;
2066 case F_ARM_3: machine = bfd_mach_arm_3; break;
2067 default:
2068 case F_ARM_3M: machine = bfd_mach_arm_3M; break;
2069 case F_ARM_4: machine = bfd_mach_arm_4; break;
2070 case F_ARM_4T: machine = bfd_mach_arm_4T; break;
2071 /* The COFF header does not have enough bits available
2072 to cover all the different ARM architectures. So
2073 we interpret F_ARM_5, the highest flag value to mean
2074 "the highest ARM architecture known to BFD" which is
2075 currently the XScale. */
2076 case F_ARM_5: machine = bfd_mach_arm_XScale; break;
2077 }
2078 }
2079 break;
2080 #endif
2081 #ifdef MC68MAGIC
2082 case MC68MAGIC:
2083 case M68MAGIC:
2084 #ifdef MC68KBCSMAGIC
2085 case MC68KBCSMAGIC:
2086 #endif
2087 #ifdef APOLLOM68KMAGIC
2088 case APOLLOM68KMAGIC:
2089 #endif
2090 #ifdef LYNXCOFFMAGIC
2091 case LYNXCOFFMAGIC:
2092 #endif
2093 arch = bfd_arch_m68k;
2094 machine = bfd_mach_m68020;
2095 break;
2096 #endif
2097 #ifdef MAXQ20MAGIC
2098 case MAXQ20MAGIC:
2099 arch = bfd_arch_maxq;
2100 switch (internal_f->f_flags & F_MACHMASK)
2101 {
2102 case F_MAXQ10:
2103 machine = bfd_mach_maxq10;
2104 break;
2105 case F_MAXQ20:
2106 machine = bfd_mach_maxq20;
2107 break;
2108 default:
2109 return FALSE;
2110 }
2111 break;
2112 #endif
2113 #ifdef MC88MAGIC
2114 case MC88MAGIC:
2115 case MC88DMAGIC:
2116 case MC88OMAGIC:
2117 arch = bfd_arch_m88k;
2118 machine = 88100;
2119 break;
2120 #endif
2121 #ifdef Z80MAGIC
2122 case Z80MAGIC:
2123 arch = bfd_arch_z80;
2124 switch (internal_f->f_flags & F_MACHMASK)
2125 {
2126 case 0:
2127 case bfd_mach_z80strict << 12:
2128 case bfd_mach_z80 << 12:
2129 case bfd_mach_z80full << 12:
2130 case bfd_mach_r800 << 12:
2131 machine = ((unsigned)internal_f->f_flags & F_MACHMASK) >> 12;
2132 break;
2133 default:
2134 return FALSE;
2135 }
2136 break;
2137 #endif
2138 #ifdef Z8KMAGIC
2139 case Z8KMAGIC:
2140 arch = bfd_arch_z8k;
2141 switch (internal_f->f_flags & F_MACHMASK)
2142 {
2143 case F_Z8001:
2144 machine = bfd_mach_z8001;
2145 break;
2146 case F_Z8002:
2147 machine = bfd_mach_z8002;
2148 break;
2149 default:
2150 return FALSE;
2151 }
2152 break;
2153 #endif
2154 #ifdef I860
2155 case I860MAGIC:
2156 arch = bfd_arch_i860;
2157 break;
2158 #endif
2159 #ifdef I960
2160 #ifdef I960ROMAGIC
2161 case I960ROMAGIC:
2162 case I960RWMAGIC:
2163 arch = bfd_arch_i960;
2164 switch (F_I960TYPE & internal_f->f_flags)
2165 {
2166 default:
2167 case F_I960CORE:
2168 machine = bfd_mach_i960_core;
2169 break;
2170 case F_I960KB:
2171 machine = bfd_mach_i960_kb_sb;
2172 break;
2173 case F_I960MC:
2174 machine = bfd_mach_i960_mc;
2175 break;
2176 case F_I960XA:
2177 machine = bfd_mach_i960_xa;
2178 break;
2179 case F_I960CA:
2180 machine = bfd_mach_i960_ca;
2181 break;
2182 case F_I960KA:
2183 machine = bfd_mach_i960_ka_sa;
2184 break;
2185 case F_I960JX:
2186 machine = bfd_mach_i960_jx;
2187 break;
2188 case F_I960HX:
2189 machine = bfd_mach_i960_hx;
2190 break;
2191 }
2192 break;
2193 #endif
2194 #endif
2195
2196 #ifdef RS6000COFF_C
2197 #ifdef XCOFF64
2198 case U64_TOCMAGIC:
2199 case U803XTOCMAGIC:
2200 #else
2201 case U802ROMAGIC:
2202 case U802WRMAGIC:
2203 case U802TOCMAGIC:
2204 #endif
2205 {
2206 int cputype;
2207
2208 if (xcoff_data (abfd)->cputype != -1)
2209 cputype = xcoff_data (abfd)->cputype & 0xff;
2210 else
2211 {
2212 /* We did not get a value from the a.out header. If the
2213 file has not been stripped, we may be able to get the
2214 architecture information from the first symbol, if it
2215 is a .file symbol. */
2216 if (obj_raw_syment_count (abfd) == 0)
2217 cputype = 0;
2218 else
2219 {
2220 bfd_byte *buf;
2221 struct internal_syment sym;
2222 bfd_size_type amt = bfd_coff_symesz (abfd);
2223
2224 buf = bfd_malloc (amt);
2225 if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
2226 || bfd_bread (buf, amt, abfd) != amt)
2227 {
2228 free (buf);
2229 return FALSE;
2230 }
2231 bfd_coff_swap_sym_in (abfd, buf, & sym);
2232 if (sym.n_sclass == C_FILE)
2233 cputype = sym.n_type & 0xff;
2234 else
2235 cputype = 0;
2236 free (buf);
2237 }
2238 }
2239
2240 /* FIXME: We don't handle all cases here. */
2241 switch (cputype)
2242 {
2243 default:
2244 case 0:
2245 arch = bfd_xcoff_architecture (abfd);
2246 machine = bfd_xcoff_machine (abfd);
2247 break;
2248
2249 case 1:
2250 arch = bfd_arch_powerpc;
2251 machine = bfd_mach_ppc_601;
2252 break;
2253 case 2: /* 64 bit PowerPC */
2254 arch = bfd_arch_powerpc;
2255 machine = bfd_mach_ppc_620;
2256 break;
2257 case 3:
2258 arch = bfd_arch_powerpc;
2259 machine = bfd_mach_ppc;
2260 break;
2261 case 4:
2262 arch = bfd_arch_rs6000;
2263 machine = bfd_mach_rs6k;
2264 break;
2265 }
2266 }
2267 break;
2268 #endif
2269
2270 #ifdef WE32KMAGIC
2271 case WE32KMAGIC:
2272 arch = bfd_arch_we32k;
2273 break;
2274 #endif
2275
2276 #ifdef H8300MAGIC
2277 case H8300MAGIC:
2278 arch = bfd_arch_h8300;
2279 machine = bfd_mach_h8300;
2280 /* !! FIXME this probably isn't the right place for this. */
2281 abfd->flags |= BFD_IS_RELAXABLE;
2282 break;
2283 #endif
2284
2285 #ifdef H8300HMAGIC
2286 case H8300HMAGIC:
2287 arch = bfd_arch_h8300;
2288 machine = bfd_mach_h8300h;
2289 /* !! FIXME this probably isn't the right place for this. */
2290 abfd->flags |= BFD_IS_RELAXABLE;
2291 break;
2292 #endif
2293
2294 #ifdef H8300SMAGIC
2295 case H8300SMAGIC:
2296 arch = bfd_arch_h8300;
2297 machine = bfd_mach_h8300s;
2298 /* !! FIXME this probably isn't the right place for this. */
2299 abfd->flags |= BFD_IS_RELAXABLE;
2300 break;
2301 #endif
2302
2303 #ifdef H8300HNMAGIC
2304 case H8300HNMAGIC:
2305 arch = bfd_arch_h8300;
2306 machine = bfd_mach_h8300hn;
2307 /* !! FIXME this probably isn't the right place for this. */
2308 abfd->flags |= BFD_IS_RELAXABLE;
2309 break;
2310 #endif
2311
2312 #ifdef H8300SNMAGIC
2313 case H8300SNMAGIC:
2314 arch = bfd_arch_h8300;
2315 machine = bfd_mach_h8300sn;
2316 /* !! FIXME this probably isn't the right place for this. */
2317 abfd->flags |= BFD_IS_RELAXABLE;
2318 break;
2319 #endif
2320
2321 #ifdef SH_ARCH_MAGIC_BIG
2322 case SH_ARCH_MAGIC_BIG:
2323 case SH_ARCH_MAGIC_LITTLE:
2324 #ifdef COFF_WITH_PE
2325 case SH_ARCH_MAGIC_WINCE:
2326 #endif
2327 arch = bfd_arch_sh;
2328 break;
2329 #endif
2330
2331 #ifdef MIPS_ARCH_MAGIC_WINCE
2332 case MIPS_ARCH_MAGIC_WINCE:
2333 arch = bfd_arch_mips;
2334 break;
2335 #endif
2336
2337 #ifdef H8500MAGIC
2338 case H8500MAGIC:
2339 arch = bfd_arch_h8500;
2340 break;
2341 #endif
2342
2343 #ifdef SPARCMAGIC
2344 case SPARCMAGIC:
2345 #ifdef LYNXCOFFMAGIC
2346 case LYNXCOFFMAGIC:
2347 #endif
2348 arch = bfd_arch_sparc;
2349 break;
2350 #endif
2351
2352 #ifdef TIC30MAGIC
2353 case TIC30MAGIC:
2354 arch = bfd_arch_tic30;
2355 break;
2356 #endif
2357
2358 #ifdef TICOFF0MAGIC
2359 #ifdef TICOFF_TARGET_ARCH
2360 /* This TI COFF section should be used by all new TI COFF v0 targets. */
2361 case TICOFF0MAGIC:
2362 arch = TICOFF_TARGET_ARCH;
2363 machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags);
2364 break;
2365 #endif
2366 #endif
2367
2368 #ifdef TICOFF1MAGIC
2369 /* This TI COFF section should be used by all new TI COFF v1/2 targets. */
2370 /* TI COFF1 and COFF2 use the target_id field to specify which arch. */
2371 case TICOFF1MAGIC:
2372 case TICOFF2MAGIC:
2373 switch (internal_f->f_target_id)
2374 {
2375 #ifdef TI_TARGET_ID
2376 case TI_TARGET_ID:
2377 arch = TICOFF_TARGET_ARCH;
2378 machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags);
2379 break;
2380 #endif
2381 default:
2382 arch = bfd_arch_obscure;
2383 (*_bfd_error_handler)
2384 (_("Unrecognized TI COFF target id '0x%x'"),
2385 internal_f->f_target_id);
2386 break;
2387 }
2388 break;
2389 #endif
2390
2391 #ifdef TIC80_ARCH_MAGIC
2392 case TIC80_ARCH_MAGIC:
2393 arch = bfd_arch_tic80;
2394 break;
2395 #endif
2396
2397 #ifdef MCOREMAGIC
2398 case MCOREMAGIC:
2399 arch = bfd_arch_mcore;
2400 break;
2401 #endif
2402
2403 #ifdef W65MAGIC
2404 case W65MAGIC:
2405 arch = bfd_arch_w65;
2406 break;
2407 #endif
2408
2409 default: /* Unreadable input file type. */
2410 arch = bfd_arch_obscure;
2411 break;
2412 }
2413
2414 bfd_default_set_arch_mach (abfd, arch, machine);
2415 return TRUE;
2416 }
2417
2418 #ifdef SYMNAME_IN_DEBUG
2419
2420 static bfd_boolean
2421 symname_in_debug_hook (bfd * abfd ATTRIBUTE_UNUSED, struct internal_syment *sym)
2422 {
2423 return SYMNAME_IN_DEBUG (sym) != 0;
2424 }
2425
2426 #else
2427
2428 #define symname_in_debug_hook \
2429 (bfd_boolean (*) (bfd *, struct internal_syment *)) bfd_false
2430
2431 #endif
2432
2433 #ifdef RS6000COFF_C
2434
2435 #ifdef XCOFF64
2436 #define FORCE_SYMNAMES_IN_STRINGS
2437 #endif
2438
2439 /* Handle the csect auxent of a C_EXT, C_AIX_WEAKEXT or C_HIDEXT symbol. */
2440
2441 static bfd_boolean
2442 coff_pointerize_aux_hook (bfd *abfd ATTRIBUTE_UNUSED,
2443 combined_entry_type *table_base,
2444 combined_entry_type *symbol,
2445 unsigned int indaux,
2446 combined_entry_type *aux)
2447 {
2448 int n_sclass = symbol->u.syment.n_sclass;
2449
2450 if (CSECT_SYM_P (n_sclass)
2451 && indaux + 1 == symbol->u.syment.n_numaux)
2452 {
2453 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD)
2454 {
2455 aux->u.auxent.x_csect.x_scnlen.p =
2456 table_base + aux->u.auxent.x_csect.x_scnlen.l;
2457 aux->fix_scnlen = 1;
2458 }
2459
2460 /* Return TRUE to indicate that the caller should not do any
2461 further work on this auxent. */
2462 return TRUE;
2463 }
2464
2465 /* Return FALSE to indicate that this auxent should be handled by
2466 the caller. */
2467 return FALSE;
2468 }
2469
2470 #else
2471 #ifdef I960
2472
2473 /* We don't want to pointerize bal entries. */
2474
2475 static bfd_boolean
2476 coff_pointerize_aux_hook (bfd *abfd ATTRIBUTE_UNUSED,
2477 combined_entry_type *table_base ATTRIBUTE_UNUSED,
2478 combined_entry_type *symbol,
2479 unsigned int indaux,
2480 combined_entry_type *aux ATTRIBUTE_UNUSED)
2481 {
2482 /* Return TRUE if we don't want to pointerize this aux entry, which
2483 is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */
2484 return (indaux == 1
2485 && (symbol->u.syment.n_sclass == C_LEAFPROC
2486 || symbol->u.syment.n_sclass == C_LEAFSTAT
2487 || symbol->u.syment.n_sclass == C_LEAFEXT));
2488 }
2489
2490 #else /* ! I960 */
2491
2492 #define coff_pointerize_aux_hook 0
2493
2494 #endif /* ! I960 */
2495 #endif /* ! RS6000COFF_C */
2496
2497 /* Print an aux entry. This returns TRUE if it has printed it. */
2498
2499 static bfd_boolean
2500 coff_print_aux (bfd *abfd ATTRIBUTE_UNUSED,
2501 FILE *file ATTRIBUTE_UNUSED,
2502 combined_entry_type *table_base ATTRIBUTE_UNUSED,
2503 combined_entry_type *symbol ATTRIBUTE_UNUSED,
2504 combined_entry_type *aux ATTRIBUTE_UNUSED,
2505 unsigned int indaux ATTRIBUTE_UNUSED)
2506 {
2507 #ifdef RS6000COFF_C
2508 if (CSECT_SYM_P (symbol->u.syment.n_sclass)
2509 && indaux + 1 == symbol->u.syment.n_numaux)
2510 {
2511 /* This is a csect entry. */
2512 fprintf (file, "AUX ");
2513 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) != XTY_LD)
2514 {
2515 BFD_ASSERT (! aux->fix_scnlen);
2516 #ifdef XCOFF64
2517 fprintf (file, "val %5lld",
2518 (long long) aux->u.auxent.x_csect.x_scnlen.l);
2519 #else
2520 fprintf (file, "val %5ld", (long) aux->u.auxent.x_csect.x_scnlen.l);
2521 #endif
2522 }
2523 else
2524 {
2525 fprintf (file, "indx ");
2526 if (! aux->fix_scnlen)
2527 #ifdef XCOFF64
2528 fprintf (file, "%4lld",
2529 (long long) aux->u.auxent.x_csect.x_scnlen.l);
2530 #else
2531 fprintf (file, "%4ld", (long) aux->u.auxent.x_csect.x_scnlen.l);
2532 #endif
2533 else
2534 fprintf (file, "%4ld",
2535 (long) (aux->u.auxent.x_csect.x_scnlen.p - table_base));
2536 }
2537 fprintf (file,
2538 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2539 aux->u.auxent.x_csect.x_parmhash,
2540 (unsigned int) aux->u.auxent.x_csect.x_snhash,
2541 SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp),
2542 SMTYP_ALIGN (aux->u.auxent.x_csect.x_smtyp),
2543 (unsigned int) aux->u.auxent.x_csect.x_smclas,
2544 aux->u.auxent.x_csect.x_stab,
2545 (unsigned int) aux->u.auxent.x_csect.x_snstab);
2546 return TRUE;
2547 }
2548 #endif
2549
2550 /* Return FALSE to indicate that no special action was taken. */
2551 return FALSE;
2552 }
2553
2554 /*
2555 SUBSUBSECTION
2556 Writing relocations
2557
2558 To write relocations, the back end steps though the
2559 canonical relocation table and create an
2560 @code{internal_reloc}. The symbol index to use is removed from
2561 the @code{offset} field in the symbol table supplied. The
2562 address comes directly from the sum of the section base
2563 address and the relocation offset; the type is dug directly
2564 from the howto field. Then the @code{internal_reloc} is
2565 swapped into the shape of an @code{external_reloc} and written
2566 out to disk.
2567
2568 */
2569
2570 #ifdef TARG_AUX
2571
2572
2573 /* AUX's ld wants relocations to be sorted. */
2574 static int
2575 compare_arelent_ptr (const void * x, const void * y)
2576 {
2577 const arelent **a = (const arelent **) x;
2578 const arelent **b = (const arelent **) y;
2579 bfd_size_type aadr = (*a)->address;
2580 bfd_size_type badr = (*b)->address;
2581
2582 return (aadr < badr ? -1 : badr < aadr ? 1 : 0);
2583 }
2584
2585 #endif /* TARG_AUX */
2586
2587 static bfd_boolean
2588 coff_write_relocs (bfd * abfd, int first_undef)
2589 {
2590 asection *s;
2591
2592 for (s = abfd->sections; s != NULL; s = s->next)
2593 {
2594 unsigned int i;
2595 struct external_reloc dst;
2596 arelent **p;
2597
2598 #ifndef TARG_AUX
2599 p = s->orelocation;
2600 #else
2601 {
2602 /* Sort relocations before we write them out. */
2603 bfd_size_type amt;
2604
2605 amt = s->reloc_count;
2606 amt *= sizeof (arelent *);
2607 p = bfd_malloc (amt);
2608 if (p == NULL && s->reloc_count > 0)
2609 return FALSE;
2610 memcpy (p, s->orelocation, (size_t) amt);
2611 qsort (p, s->reloc_count, sizeof (arelent *), compare_arelent_ptr);
2612 }
2613 #endif
2614
2615 if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0)
2616 return FALSE;
2617
2618 #ifdef COFF_WITH_PE
2619 if (obj_pe (abfd) && s->reloc_count >= 0xffff)
2620 {
2621 /* Encode real count here as first reloc. */
2622 struct internal_reloc n;
2623
2624 memset (& n, 0, sizeof (n));
2625 /* Add one to count *this* reloc (grr). */
2626 n.r_vaddr = s->reloc_count + 1;
2627 coff_swap_reloc_out (abfd, &n, &dst);
2628 if (bfd_bwrite (& dst, (bfd_size_type) bfd_coff_relsz (abfd),
2629 abfd) != bfd_coff_relsz (abfd))
2630 return FALSE;
2631 }
2632 #endif
2633
2634 for (i = 0; i < s->reloc_count; i++)
2635 {
2636 struct internal_reloc n;
2637 arelent *q = p[i];
2638
2639 memset (& n, 0, sizeof (n));
2640
2641 /* Now we've renumbered the symbols we know where the
2642 undefined symbols live in the table. Check the reloc
2643 entries for symbols who's output bfd isn't the right one.
2644 This is because the symbol was undefined (which means
2645 that all the pointers are never made to point to the same
2646 place). This is a bad thing,'cause the symbols attached
2647 to the output bfd are indexed, so that the relocation
2648 entries know which symbol index they point to. So we
2649 have to look up the output symbol here. */
2650
2651 if (q->sym_ptr_ptr[0] != NULL && q->sym_ptr_ptr[0]->the_bfd != abfd)
2652 {
2653 int j;
2654 const char *sname = q->sym_ptr_ptr[0]->name;
2655 asymbol **outsyms = abfd->outsymbols;
2656
2657 for (j = first_undef; outsyms[j]; j++)
2658 {
2659 const char *intable = outsyms[j]->name;
2660
2661 if (strcmp (intable, sname) == 0)
2662 {
2663 /* Got a hit, so repoint the reloc. */
2664 q->sym_ptr_ptr = outsyms + j;
2665 break;
2666 }
2667 }
2668 }
2669
2670 n.r_vaddr = q->address + s->vma;
2671
2672 #ifdef R_IHCONST
2673 /* The 29k const/consth reloc pair is a real kludge. The consth
2674 part doesn't have a symbol; it has an offset. So rebuilt
2675 that here. */
2676 if (q->howto->type == R_IHCONST)
2677 n.r_symndx = q->addend;
2678 else
2679 #endif
2680 if (q->sym_ptr_ptr && q->sym_ptr_ptr[0] != NULL)
2681 {
2682 #ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P
2683 if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q, s))
2684 #else
2685 if ((*q->sym_ptr_ptr)->section == bfd_abs_section_ptr
2686 && ((*q->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0)
2687 #endif
2688 /* This is a relocation relative to the absolute symbol. */
2689 n.r_symndx = -1;
2690 else
2691 {
2692 n.r_symndx = get_index ((*(q->sym_ptr_ptr)));
2693 /* Check to see if the symbol reloc points to a symbol
2694 we don't have in our symbol table. */
2695 if (n.r_symndx > obj_conv_table_size (abfd))
2696 {
2697 bfd_set_error (bfd_error_bad_value);
2698 _bfd_error_handler (_("%B: reloc against a non-existant symbol index: %ld"),
2699 abfd, n.r_symndx);
2700 return FALSE;
2701 }
2702 }
2703 }
2704
2705 #ifdef SWAP_OUT_RELOC_OFFSET
2706 n.r_offset = q->addend;
2707 #endif
2708
2709 #ifdef SELECT_RELOC
2710 /* Work out reloc type from what is required. */
2711 SELECT_RELOC (n, q->howto);
2712 #else
2713 n.r_type = q->howto->type;
2714 #endif
2715 coff_swap_reloc_out (abfd, &n, &dst);
2716
2717 if (bfd_bwrite (& dst, (bfd_size_type) bfd_coff_relsz (abfd),
2718 abfd) != bfd_coff_relsz (abfd))
2719 return FALSE;
2720 }
2721
2722 #ifdef TARG_AUX
2723 if (p != NULL)
2724 free (p);
2725 #endif
2726 }
2727
2728 return TRUE;
2729 }
2730
2731 /* Set flags and magic number of a coff file from architecture and machine
2732 type. Result is TRUE if we can represent the arch&type, FALSE if not. */
2733
2734 static bfd_boolean
2735 coff_set_flags (bfd * abfd,
2736 unsigned int *magicp ATTRIBUTE_UNUSED,
2737 unsigned short *flagsp ATTRIBUTE_UNUSED)
2738 {
2739 switch (bfd_get_arch (abfd))
2740 {
2741 #ifdef Z80MAGIC
2742 case bfd_arch_z80:
2743 *magicp = Z80MAGIC;
2744 switch (bfd_get_mach (abfd))
2745 {
2746 case 0:
2747 case bfd_mach_z80strict:
2748 case bfd_mach_z80:
2749 case bfd_mach_z80full:
2750 case bfd_mach_r800:
2751 *flagsp = bfd_get_mach (abfd) << 12;
2752 break;
2753 default:
2754 return FALSE;
2755 }
2756 return TRUE;
2757 #endif
2758
2759 #ifdef Z8KMAGIC
2760 case bfd_arch_z8k:
2761 *magicp = Z8KMAGIC;
2762
2763 switch (bfd_get_mach (abfd))
2764 {
2765 case bfd_mach_z8001: *flagsp = F_Z8001; break;
2766 case bfd_mach_z8002: *flagsp = F_Z8002; break;
2767 default: return FALSE;
2768 }
2769 return TRUE;
2770 #endif
2771
2772 #ifdef I960ROMAGIC
2773 case bfd_arch_i960:
2774
2775 {
2776 unsigned flags;
2777
2778 *magicp = I960ROMAGIC;
2779
2780 switch (bfd_get_mach (abfd))
2781 {
2782 case bfd_mach_i960_core: flags = F_I960CORE; break;
2783 case bfd_mach_i960_kb_sb: flags = F_I960KB; break;
2784 case bfd_mach_i960_mc: flags = F_I960MC; break;
2785 case bfd_mach_i960_xa: flags = F_I960XA; break;
2786 case bfd_mach_i960_ca: flags = F_I960CA; break;
2787 case bfd_mach_i960_ka_sa: flags = F_I960KA; break;
2788 case bfd_mach_i960_jx: flags = F_I960JX; break;
2789 case bfd_mach_i960_hx: flags = F_I960HX; break;
2790 default: return FALSE;
2791 }
2792 *flagsp = flags;
2793 return TRUE;
2794 }
2795 break;
2796 #endif
2797
2798 #ifdef TIC30MAGIC
2799 case bfd_arch_tic30:
2800 *magicp = TIC30MAGIC;
2801 return TRUE;
2802 #endif
2803
2804 #ifdef TICOFF_DEFAULT_MAGIC
2805 case TICOFF_TARGET_ARCH:
2806 /* If there's no indication of which version we want, use the default. */
2807 if (!abfd->xvec )
2808 *magicp = TICOFF_DEFAULT_MAGIC;
2809 else
2810 {
2811 /* We may want to output in a different COFF version. */
2812 switch (abfd->xvec->name[4])
2813 {
2814 case '0':
2815 *magicp = TICOFF0MAGIC;
2816 break;
2817 case '1':
2818 *magicp = TICOFF1MAGIC;
2819 break;
2820 case '2':
2821 *magicp = TICOFF2MAGIC;
2822 break;
2823 default:
2824 return FALSE;
2825 }
2826 }
2827 TICOFF_TARGET_MACHINE_SET (flagsp, bfd_get_mach (abfd));
2828 return TRUE;
2829 #endif
2830
2831 #ifdef TIC80_ARCH_MAGIC
2832 case bfd_arch_tic80:
2833 *magicp = TIC80_ARCH_MAGIC;
2834 return TRUE;
2835 #endif
2836
2837 #ifdef ARMMAGIC
2838 case bfd_arch_arm:
2839 #ifdef ARM_WINCE
2840 * magicp = ARMPEMAGIC;
2841 #else
2842 * magicp = ARMMAGIC;
2843 #endif
2844 * flagsp = 0;
2845 if (APCS_SET (abfd))
2846 {
2847 if (APCS_26_FLAG (abfd))
2848 * flagsp |= F_APCS26;
2849
2850 if (APCS_FLOAT_FLAG (abfd))
2851 * flagsp |= F_APCS_FLOAT;
2852
2853 if (PIC_FLAG (abfd))
2854 * flagsp |= F_PIC;
2855 }
2856 if (INTERWORK_SET (abfd) && INTERWORK_FLAG (abfd))
2857 * flagsp |= F_INTERWORK;
2858 switch (bfd_get_mach (abfd))
2859 {
2860 case bfd_mach_arm_2: * flagsp |= F_ARM_2; break;
2861 case bfd_mach_arm_2a: * flagsp |= F_ARM_2a; break;
2862 case bfd_mach_arm_3: * flagsp |= F_ARM_3; break;
2863 case bfd_mach_arm_3M: * flagsp |= F_ARM_3M; break;
2864 case bfd_mach_arm_4: * flagsp |= F_ARM_4; break;
2865 case bfd_mach_arm_4T: * flagsp |= F_ARM_4T; break;
2866 case bfd_mach_arm_5: * flagsp |= F_ARM_5; break;
2867 /* FIXME: we do not have F_ARM vaues greater than F_ARM_5.
2868 See also the comment in coff_set_arch_mach_hook(). */
2869 case bfd_mach_arm_5T: * flagsp |= F_ARM_5; break;
2870 case bfd_mach_arm_5TE: * flagsp |= F_ARM_5; break;
2871 case bfd_mach_arm_XScale: * flagsp |= F_ARM_5; break;
2872 }
2873 return TRUE;
2874 #endif
2875
2876 #ifdef PPCMAGIC
2877 case bfd_arch_powerpc:
2878 *magicp = PPCMAGIC;
2879 return TRUE;
2880 #endif
2881
2882 #if defined(I386MAGIC) || defined(AMD64MAGIC)
2883 case bfd_arch_i386:
2884 #if defined(I386MAGIC)
2885 *magicp = I386MAGIC;
2886 #endif
2887 #if defined LYNXOS
2888 /* Just overwrite the usual value if we're doing Lynx. */
2889 *magicp = LYNXCOFFMAGIC;
2890 #endif
2891 #if defined AMD64MAGIC
2892 *magicp = AMD64MAGIC;
2893 #endif
2894 return TRUE;
2895 #endif
2896
2897 #ifdef I860MAGIC
2898 case bfd_arch_i860:
2899 *magicp = I860MAGIC;
2900 return TRUE;
2901 #endif
2902
2903 #ifdef IA64MAGIC
2904 case bfd_arch_ia64:
2905 *magicp = IA64MAGIC;
2906 return TRUE;
2907 #endif
2908
2909 #ifdef MC68MAGIC
2910 case bfd_arch_m68k:
2911 #ifdef APOLLOM68KMAGIC
2912 *magicp = APOLLO_COFF_VERSION_NUMBER;
2913 #else
2914 /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */
2915 #ifdef NAMES_HAVE_UNDERSCORE
2916 *magicp = MC68KBCSMAGIC;
2917 #else
2918 *magicp = MC68MAGIC;
2919 #endif
2920 #endif
2921 #ifdef LYNXOS
2922 /* Just overwrite the usual value if we're doing Lynx. */
2923 *magicp = LYNXCOFFMAGIC;
2924 #endif
2925 return TRUE;
2926 #endif
2927
2928 #ifdef MC88MAGIC
2929 case bfd_arch_m88k:
2930 *magicp = MC88OMAGIC;
2931 return TRUE;
2932 #endif
2933
2934 #ifdef H8300MAGIC
2935 case bfd_arch_h8300:
2936 switch (bfd_get_mach (abfd))
2937 {
2938 case bfd_mach_h8300: *magicp = H8300MAGIC; return TRUE;
2939 case bfd_mach_h8300h: *magicp = H8300HMAGIC; return TRUE;
2940 case bfd_mach_h8300s: *magicp = H8300SMAGIC; return TRUE;
2941 case bfd_mach_h8300hn: *magicp = H8300HNMAGIC; return TRUE;
2942 case bfd_mach_h8300sn: *magicp = H8300SNMAGIC; return TRUE;
2943 default: break;
2944 }
2945 break;
2946 #endif
2947
2948 #ifdef SH_ARCH_MAGIC_BIG
2949 case bfd_arch_sh:
2950 #ifdef COFF_IMAGE_WITH_PE
2951 *magicp = SH_ARCH_MAGIC_WINCE;
2952 #else
2953 if (bfd_big_endian (abfd))
2954 *magicp = SH_ARCH_MAGIC_BIG;
2955 else
2956 *magicp = SH_ARCH_MAGIC_LITTLE;
2957 #endif
2958 return TRUE;
2959 #endif
2960
2961 #ifdef MIPS_ARCH_MAGIC_WINCE
2962 case bfd_arch_mips:
2963 *magicp = MIPS_ARCH_MAGIC_WINCE;
2964 return TRUE;
2965 #endif
2966
2967 #ifdef SPARCMAGIC
2968 case bfd_arch_sparc:
2969 *magicp = SPARCMAGIC;
2970 #ifdef LYNXOS
2971 /* Just overwrite the usual value if we're doing Lynx. */
2972 *magicp = LYNXCOFFMAGIC;
2973 #endif
2974 return TRUE;
2975 #endif
2976
2977 #ifdef H8500MAGIC
2978 case bfd_arch_h8500:
2979 *magicp = H8500MAGIC;
2980 return TRUE;
2981 break;
2982 #endif
2983
2984 #ifdef WE32KMAGIC
2985 case bfd_arch_we32k:
2986 *magicp = WE32KMAGIC;
2987 return TRUE;
2988 #endif
2989
2990 #ifdef RS6000COFF_C
2991 case bfd_arch_rs6000:
2992 #ifndef PPCMAGIC
2993 case bfd_arch_powerpc:
2994 #endif
2995 BFD_ASSERT (bfd_get_flavour (abfd) == bfd_target_xcoff_flavour);
2996 *magicp = bfd_xcoff_magic_number (abfd);
2997 return TRUE;
2998 #endif
2999
3000 #ifdef MCOREMAGIC
3001 case bfd_arch_mcore:
3002 * magicp = MCOREMAGIC;
3003 return TRUE;
3004 #endif
3005
3006 #ifdef W65MAGIC
3007 case bfd_arch_w65:
3008 *magicp = W65MAGIC;
3009 return TRUE;
3010 #endif
3011
3012 #ifdef OR32_MAGIC_BIG
3013 case bfd_arch_or32:
3014 if (bfd_big_endian (abfd))
3015 * magicp = OR32_MAGIC_BIG;
3016 else
3017 * magicp = OR32_MAGIC_LITTLE;
3018 return TRUE;
3019 #endif
3020
3021 #ifdef MAXQ20MAGIC
3022 case bfd_arch_maxq:
3023 * magicp = MAXQ20MAGIC;
3024 switch (bfd_get_mach (abfd))
3025 {
3026 case bfd_mach_maxq10: * flagsp = F_MAXQ10; return TRUE;
3027 case bfd_mach_maxq20: * flagsp = F_MAXQ20; return TRUE;
3028 default: return FALSE;
3029 }
3030 #endif
3031
3032 default: /* Unknown architecture. */
3033 /* Fall through to "return FALSE" below, to avoid
3034 "statement never reached" errors on the one below. */
3035 break;
3036 }
3037
3038 return FALSE;
3039 }
3040
3041 static bfd_boolean
3042 coff_set_arch_mach (bfd * abfd,
3043 enum bfd_architecture arch,
3044 unsigned long machine)
3045 {
3046 unsigned dummy1;
3047 unsigned short dummy2;
3048
3049 if (! bfd_default_set_arch_mach (abfd, arch, machine))
3050 return FALSE;
3051
3052 if (arch != bfd_arch_unknown
3053 && ! coff_set_flags (abfd, &dummy1, &dummy2))
3054 return FALSE; /* We can't represent this type. */
3055
3056 return TRUE; /* We're easy... */
3057 }
3058
3059 #ifdef COFF_IMAGE_WITH_PE
3060
3061 /* This is used to sort sections by VMA, as required by PE image
3062 files. */
3063
3064 static int
3065 sort_by_secaddr (const void * arg1, const void * arg2)
3066 {
3067 const asection *a = *(const asection **) arg1;
3068 const asection *b = *(const asection **) arg2;
3069
3070 if (a->vma < b->vma)
3071 return -1;
3072 else if (a->vma > b->vma)
3073 return 1;
3074
3075 return 0;
3076 }
3077
3078 #endif /* COFF_IMAGE_WITH_PE */
3079
3080 /* Calculate the file position for each section. */
3081
3082 #ifndef I960
3083 #define ALIGN_SECTIONS_IN_FILE
3084 #endif
3085 #if defined(TIC80COFF) || defined(TICOFF)
3086 #undef ALIGN_SECTIONS_IN_FILE
3087 #endif
3088
3089 static bfd_boolean
3090 coff_compute_section_file_positions (bfd * abfd)
3091 {
3092 asection *current;
3093 file_ptr sofar = bfd_coff_filhsz (abfd);
3094 bfd_boolean align_adjust;
3095 int target_index;
3096 #ifdef ALIGN_SECTIONS_IN_FILE
3097 asection *previous = NULL;
3098 file_ptr old_sofar;
3099 #endif
3100
3101 #ifdef COFF_IMAGE_WITH_PE
3102 int page_size;
3103
3104 if (coff_data (abfd)->link_info)
3105 {
3106 page_size = pe_data (abfd)->pe_opthdr.FileAlignment;
3107
3108 /* If no file alignment has been set, default to one.
3109 This repairs 'ld -r' for arm-wince-pe target. */
3110 if (page_size == 0)
3111 page_size = 1;
3112 }
3113 else
3114 page_size = PE_DEF_FILE_ALIGNMENT;
3115 #else
3116 #ifdef COFF_PAGE_SIZE
3117 int page_size = COFF_PAGE_SIZE;
3118 #endif
3119 #endif
3120
3121 #ifdef RS6000COFF_C
3122 /* On XCOFF, if we have symbols, set up the .debug section. */
3123 if (bfd_get_symcount (abfd) > 0)
3124 {
3125 bfd_size_type sz;
3126 bfd_size_type i, symcount;
3127 asymbol **symp;
3128
3129 sz = 0;
3130 symcount = bfd_get_symcount (abfd);
3131 for (symp = abfd->outsymbols, i = 0; i < symcount; symp++, i++)
3132 {
3133 coff_symbol_type *cf;
3134
3135 cf = coff_symbol_from (abfd, *symp);
3136 if (cf != NULL
3137 && cf->native != NULL
3138 && SYMNAME_IN_DEBUG (&cf->native->u.syment))
3139 {
3140 size_t len;
3141
3142 len = strlen (bfd_asymbol_name (*symp));
3143 if (len > SYMNMLEN || bfd_coff_force_symnames_in_strings (abfd))
3144 sz += len + 1 + bfd_coff_debug_string_prefix_length (abfd);
3145 }
3146 }
3147 if (sz > 0)
3148 {
3149 asection *dsec;
3150
3151 dsec = bfd_make_section_old_way (abfd, DOT_DEBUG);
3152 if (dsec == NULL)
3153 abort ();
3154 dsec->size = sz;
3155 dsec->flags |= SEC_HAS_CONTENTS;
3156 }
3157 }
3158 #endif
3159
3160 if (bfd_get_start_address (abfd))
3161 /* A start address may have been added to the original file. In this
3162 case it will need an optional header to record it. */
3163 abfd->flags |= EXEC_P;
3164
3165 if (abfd->flags & EXEC_P)
3166 sofar += bfd_coff_aoutsz (abfd);
3167 #ifdef RS6000COFF_C
3168 else if (xcoff_data (abfd)->full_aouthdr)
3169 sofar += bfd_coff_aoutsz (abfd);
3170 else
3171 sofar += SMALL_AOUTSZ;
3172 #endif
3173
3174 sofar += abfd->section_count * bfd_coff_scnhsz (abfd);
3175
3176 #ifdef RS6000COFF_C
3177 /* XCOFF handles overflows in the reloc and line number count fields
3178 by allocating a new section header to hold the correct counts. */
3179 for (current = abfd->sections; current != NULL; current = current->next)
3180 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3181 sofar += bfd_coff_scnhsz (abfd);
3182 #endif
3183
3184 #ifdef COFF_IMAGE_WITH_PE
3185 {
3186 /* PE requires the sections to be in memory order when listed in
3187 the section headers. It also does not like empty loadable
3188 sections. The sections apparently do not have to be in the
3189 right order in the image file itself, but we do need to get the
3190 target_index values right. */
3191
3192 unsigned int count;
3193 asection **section_list;
3194 unsigned int i;
3195 bfd_size_type amt;
3196
3197 #ifdef COFF_PAGE_SIZE
3198 /* Clear D_PAGED if section alignment is smaller than
3199 COFF_PAGE_SIZE. */
3200 if (pe_data (abfd)->pe_opthdr.SectionAlignment < COFF_PAGE_SIZE)
3201 abfd->flags &= ~D_PAGED;
3202 #endif
3203
3204 count = 0;
3205 for (current = abfd->sections; current != NULL; current = current->next)
3206 ++count;
3207
3208 /* We allocate an extra cell to simplify the final loop. */
3209 amt = sizeof (struct asection *) * (count + 1);
3210 section_list = (asection **) bfd_malloc (amt);
3211 if (section_list == NULL)
3212 return FALSE;
3213
3214 i = 0;
3215 for (current = abfd->sections; current != NULL; current = current->next)
3216 {
3217 section_list[i] = current;
3218 ++i;
3219 }
3220 section_list[i] = NULL;
3221
3222 qsort (section_list, count, sizeof (asection *), sort_by_secaddr);
3223
3224 /* Rethread the linked list into sorted order; at the same time,
3225 assign target_index values. */
3226 target_index = 1;
3227 abfd->sections = NULL;
3228 abfd->section_last = NULL;
3229 for (i = 0; i < count; i++)
3230 {
3231 current = section_list[i];
3232 bfd_section_list_append (abfd, current);
3233
3234 /* Later, if the section has zero size, we'll be throwing it
3235 away, so we don't want to number it now. Note that having
3236 a zero size and having real contents are different
3237 concepts: .bss has no contents, but (usually) non-zero
3238 size. */
3239 if (current->size == 0)
3240 {
3241 /* Discard. However, it still might have (valid) symbols
3242 in it, so arbitrarily set it to section 1 (indexing is
3243 1-based here; usually .text). __end__ and other
3244 contents of .endsection really have this happen.
3245 FIXME: This seems somewhat dubious. */
3246 current->target_index = 1;
3247 }
3248 else
3249 current->target_index = target_index++;
3250 }
3251
3252 free (section_list);
3253 }
3254 #else /* ! COFF_IMAGE_WITH_PE */
3255 {
3256 /* Set the target_index field. */
3257 target_index = 1;
3258 for (current = abfd->sections; current != NULL; current = current->next)
3259 current->target_index = target_index++;
3260 }
3261 #endif /* ! COFF_IMAGE_WITH_PE */
3262
3263 if (target_index >= 32768)
3264 {
3265 bfd_set_error (bfd_error_file_too_big);
3266 (*_bfd_error_handler)
3267 (_("%B: too many sections (%d)"), abfd, target_index);
3268 return FALSE;
3269 }
3270
3271 align_adjust = FALSE;
3272 for (current = abfd->sections;
3273 current != NULL;
3274 current = current->next)
3275 {
3276 #ifdef COFF_IMAGE_WITH_PE
3277 /* With PE we have to pad each section to be a multiple of its
3278 page size too, and remember both sizes. */
3279 if (coff_section_data (abfd, current) == NULL)
3280 {
3281 bfd_size_type amt = sizeof (struct coff_section_tdata);
3282
3283 current->used_by_bfd = bfd_zalloc (abfd, amt);
3284 if (current->used_by_bfd == NULL)
3285 return FALSE;
3286 }
3287 if (pei_section_data (abfd, current) == NULL)
3288 {
3289 bfd_size_type amt = sizeof (struct pei_section_tdata);
3290
3291 coff_section_data (abfd, current)->tdata = bfd_zalloc (abfd, amt);
3292 if (coff_section_data (abfd, current)->tdata == NULL)
3293 return FALSE;
3294 }
3295 if (pei_section_data (abfd, current)->virt_size == 0)
3296 pei_section_data (abfd, current)->virt_size = current->size;
3297 #endif
3298
3299 /* Only deal with sections which have contents. */
3300 if (!(current->flags & SEC_HAS_CONTENTS))
3301 continue;
3302
3303 #ifdef COFF_IMAGE_WITH_PE
3304 /* Make sure we skip empty sections in a PE image. */
3305 if (current->size == 0)
3306 continue;
3307 #endif
3308
3309 /* Align the sections in the file to the same boundary on
3310 which they are aligned in virtual memory. I960 doesn't
3311 do this (FIXME) so we can stay in sync with Intel. 960
3312 doesn't yet page from files... */
3313 #ifdef ALIGN_SECTIONS_IN_FILE
3314 if ((abfd->flags & EXEC_P) != 0)
3315 {
3316 /* Make sure this section is aligned on the right boundary - by
3317 padding the previous section up if necessary. */
3318 old_sofar = sofar;
3319
3320 #ifdef RS6000COFF_C
3321 /* AIX loader checks the text section alignment of (vma - filepos)
3322 So even though the filepos may be aligned wrt the o_algntext, for
3323 AIX executables, this check fails. This shows up when a native
3324 AIX executable is stripped with gnu strip because the default vma
3325 of native is 0x10000150 but default for gnu is 0x10000140. Gnu
3326 stripped gnu excutable passes this check because the filepos is
3327 0x0140. This problem also show up with 64 bit shared objects. The
3328 data section must also be aligned. */
3329 if (!strcmp (current->name, _TEXT)
3330 || !strcmp (current->name, _DATA))
3331 {
3332 bfd_vma pad;
3333 bfd_vma align;
3334
3335 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3336
3337 align = 1 << current->alignment_power;
3338 pad = abs (current->vma - sofar) % align;
3339
3340 if (pad)
3341 {
3342 pad = align - pad;
3343 sofar += pad;
3344 }
3345 }
3346 else
3347 #else
3348 {
3349 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3350 }
3351 #endif
3352 if (previous != NULL)
3353 previous->size += sofar - old_sofar;
3354 }
3355
3356 #endif
3357
3358 /* In demand paged files the low order bits of the file offset
3359 must match the low order bits of the virtual address. */
3360 #ifdef COFF_PAGE_SIZE
3361 if ((abfd->flags & D_PAGED) != 0
3362 && (current->flags & SEC_ALLOC) != 0)
3363 sofar += (current->vma - (bfd_vma) sofar) % page_size;
3364 #endif
3365 current->filepos = sofar;
3366
3367 #ifdef COFF_IMAGE_WITH_PE
3368 /* Set the padded size. */
3369 current->size = (current->size + page_size -1) & -page_size;
3370 #endif
3371
3372 sofar += current->size;
3373
3374 #ifdef ALIGN_SECTIONS_IN_FILE
3375 /* Make sure that this section is of the right size too. */
3376 if ((abfd->flags & EXEC_P) == 0)
3377 {
3378 bfd_size_type old_size;
3379
3380 old_size = current->size;
3381 current->size = BFD_ALIGN (current->size,
3382 1 << current->alignment_power);
3383 align_adjust = current->size != old_size;
3384 sofar += current->size - old_size;
3385 }
3386 else
3387 {
3388 old_sofar = sofar;
3389 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3390 align_adjust = sofar != old_sofar;
3391 current->size += sofar - old_sofar;
3392 }
3393 #endif
3394
3395 #ifdef COFF_IMAGE_WITH_PE
3396 /* For PE we need to make sure we pad out to the aligned
3397 size, in case the caller only writes out data to the
3398 unaligned size. */
3399 if (pei_section_data (abfd, current)->virt_size < current->size)
3400 align_adjust = TRUE;
3401 #endif
3402
3403 #ifdef _LIB
3404 /* Force .lib sections to start at zero. The vma is then
3405 incremented in coff_set_section_contents. This is right for
3406 SVR3.2. */
3407 if (strcmp (current->name, _LIB) == 0)
3408 bfd_set_section_vma (abfd, current, 0);
3409 #endif
3410
3411 #ifdef ALIGN_SECTIONS_IN_FILE
3412 previous = current;
3413 #endif
3414 }
3415
3416 /* It is now safe to write to the output file. If we needed an
3417 alignment adjustment for the last section, then make sure that
3418 there is a byte at offset sofar. If there are no symbols and no
3419 relocs, then nothing follows the last section. If we don't force
3420 the last byte out, then the file may appear to be truncated. */
3421 if (align_adjust)
3422 {
3423 bfd_byte b;
3424
3425 b = 0;
3426 if (bfd_seek (abfd, sofar - 1, SEEK_SET) != 0
3427 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
3428 return FALSE;
3429 }
3430
3431 /* Make sure the relocations are aligned. We don't need to make
3432 sure that this byte exists, because it will only matter if there
3433 really are relocs. */
3434 sofar = BFD_ALIGN (sofar, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER);
3435
3436 obj_relocbase (abfd) = sofar;
3437 abfd->output_has_begun = TRUE;
3438
3439 return TRUE;
3440 }
3441
3442 #ifdef COFF_IMAGE_WITH_PE
3443
3444 static unsigned int pelength;
3445 static unsigned int peheader;
3446
3447 static bfd_boolean
3448 coff_read_word (bfd *abfd, unsigned int *value)
3449 {
3450 unsigned char b[2];
3451 int status;
3452
3453 status = bfd_bread (b, (bfd_size_type) 2, abfd);
3454 if (status < 1)
3455 {
3456 *value = 0;
3457 return FALSE;
3458 }
3459
3460 if (status == 1)
3461 *value = (unsigned int) b[0];
3462 else
3463 *value = (unsigned int) (b[0] + (b[1] << 8));
3464
3465 pelength += (unsigned int) status;
3466
3467 return TRUE;
3468 }
3469
3470 static unsigned int
3471 coff_compute_checksum (bfd *abfd)
3472 {
3473 bfd_boolean more_data;
3474 file_ptr filepos;
3475 unsigned int value;
3476 unsigned int total;
3477
3478 total = 0;
3479 pelength = 0;
3480 filepos = (file_ptr) 0;
3481
3482 do
3483 {
3484 if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
3485 return 0;
3486
3487 more_data = coff_read_word (abfd, &value);
3488 total += value;
3489 total = 0xffff & (total + (total >> 0x10));
3490 filepos += 2;
3491 }
3492 while (more_data);
3493
3494 return (0xffff & (total + (total >> 0x10)));
3495 }
3496
3497 static bfd_boolean
3498 coff_apply_checksum (bfd *abfd)
3499 {
3500 unsigned int computed;
3501 unsigned int checksum = 0;
3502
3503 if (bfd_seek (abfd, 0x3c, SEEK_SET) != 0)
3504 return FALSE;
3505
3506 if (!coff_read_word (abfd, &peheader))
3507 return FALSE;
3508
3509 if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0)
3510 return FALSE;
3511
3512 checksum = 0;
3513 bfd_bwrite (&checksum, (bfd_size_type) 4, abfd);
3514
3515 if (bfd_seek (abfd, peheader, SEEK_SET) != 0)
3516 return FALSE;
3517
3518 computed = coff_compute_checksum (abfd);
3519
3520 checksum = computed + pelength;
3521
3522 if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0)
3523 return FALSE;
3524
3525 bfd_bwrite (&checksum, (bfd_size_type) 4, abfd);
3526
3527 return TRUE;
3528 }
3529
3530 #endif /* COFF_IMAGE_WITH_PE */
3531
3532 static bfd_boolean
3533 coff_write_object_contents (bfd * abfd)
3534 {
3535 asection *current;
3536 bfd_boolean hasrelocs = FALSE;
3537 bfd_boolean haslinno = FALSE;
3538 #ifdef COFF_IMAGE_WITH_PE
3539 bfd_boolean hasdebug = FALSE;
3540 #endif
3541 file_ptr scn_base;
3542 file_ptr reloc_base;
3543 file_ptr lineno_base;
3544 file_ptr sym_base;
3545 unsigned long reloc_size = 0, reloc_count = 0;
3546 unsigned long lnno_size = 0;
3547 bfd_boolean long_section_names;
3548 asection *text_sec = NULL;
3549 asection *data_sec = NULL;
3550 asection *bss_sec = NULL;
3551 struct internal_filehdr internal_f;
3552 struct internal_aouthdr internal_a;
3553 #ifdef COFF_LONG_SECTION_NAMES
3554 size_t string_size = STRING_SIZE_SIZE;
3555 #endif
3556
3557 bfd_set_error (bfd_error_system_call);
3558
3559 /* Make a pass through the symbol table to count line number entries and
3560 put them into the correct asections. */
3561 lnno_size = coff_count_linenumbers (abfd) * bfd_coff_linesz (abfd);
3562
3563 if (! abfd->output_has_begun)
3564 {
3565 if (! coff_compute_section_file_positions (abfd))
3566 return FALSE;
3567 }
3568
3569 reloc_base = obj_relocbase (abfd);
3570
3571 /* Work out the size of the reloc and linno areas. */
3572
3573 for (current = abfd->sections; current != NULL; current =
3574 current->next)
3575 {
3576 #ifdef COFF_WITH_PE
3577 /* We store the actual reloc count in the first reloc's addr. */
3578 if (obj_pe (abfd) && current->reloc_count >= 0xffff)
3579 reloc_count ++;
3580 #endif
3581 reloc_count += current->reloc_count;
3582 }
3583
3584 reloc_size = reloc_count * bfd_coff_relsz (abfd);
3585
3586 lineno_base = reloc_base + reloc_size;
3587 sym_base = lineno_base + lnno_size;
3588
3589 /* Indicate in each section->line_filepos its actual file address. */
3590 for (current = abfd->sections; current != NULL; current =
3591 current->next)
3592 {
3593 if (current->lineno_count)
3594 {
3595 current->line_filepos = lineno_base;
3596 current->moving_line_filepos = lineno_base;
3597 lineno_base += current->lineno_count * bfd_coff_linesz (abfd);
3598 }
3599 else
3600 current->line_filepos = 0;
3601
3602 if (current->reloc_count)
3603 {
3604 current->rel_filepos = reloc_base;
3605 reloc_base += current->reloc_count * bfd_coff_relsz (abfd);
3606 #ifdef COFF_WITH_PE
3607 /* Extra reloc to hold real count. */
3608 if (obj_pe (abfd) && current->reloc_count >= 0xffff)
3609 reloc_base += bfd_coff_relsz (abfd);
3610 #endif
3611 }
3612 else
3613 current->rel_filepos = 0;
3614 }
3615
3616 /* Write section headers to the file. */
3617 internal_f.f_nscns = 0;
3618
3619 if ((abfd->flags & EXEC_P) != 0)
3620 scn_base = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd);
3621 else
3622 {
3623 scn_base = bfd_coff_filhsz (abfd);
3624 #ifdef RS6000COFF_C
3625 #ifndef XCOFF64
3626 if (xcoff_data (abfd)->full_aouthdr)
3627 scn_base += bfd_coff_aoutsz (abfd);
3628 else
3629 scn_base += SMALL_AOUTSZ;
3630 #endif
3631 #endif
3632 }
3633
3634 if (bfd_seek (abfd, scn_base, SEEK_SET) != 0)
3635 return FALSE;
3636
3637 long_section_names = FALSE;
3638 for (current = abfd->sections;
3639 current != NULL;
3640 current = current->next)
3641 {
3642 struct internal_scnhdr section;
3643 #ifdef COFF_IMAGE_WITH_PE
3644 bfd_boolean is_reloc_section = FALSE;
3645
3646 if (strcmp (current->name, DOT_RELOC) == 0)
3647 {
3648 is_reloc_section = TRUE;
3649 hasrelocs = TRUE;
3650 pe_data (abfd)->has_reloc_section = 1;
3651 }
3652 #endif
3653
3654 internal_f.f_nscns++;
3655
3656 strncpy (section.s_name, current->name, SCNNMLEN);
3657
3658 #ifdef COFF_LONG_SECTION_NAMES
3659 /* Handle long section names as in PE. This must be compatible
3660 with the code in coff_write_symbols and _bfd_coff_final_link. */
3661 if (bfd_coff_long_section_names (abfd))
3662 {
3663 size_t len;
3664
3665 len = strlen (current->name);
3666 if (len > SCNNMLEN)
3667 {
3668 /* The s_name field is defined to be NUL-padded but need not be
3669 NUL-terminated. We use a temporary buffer so that we can still
3670 sprintf all eight chars without splatting a terminating NUL
3671 over the first byte of the following member (s_paddr). */
3672 char s_name_buf[SCNNMLEN + 1];
3673
3674 /* An inherent limitation of the /nnnnnnn notation used to indicate
3675 the offset of the long name in the string table is that we
3676 cannot address entries beyone the ten million byte boundary. */
3677 if (string_size >= 10000000)
3678 {
3679 bfd_set_error (bfd_error_file_too_big);
3680 (*_bfd_error_handler)
3681 (_("%B: section %s: string table overflow at offset %ld"),
3682 abfd, current->name, string_size);
3683 return FALSE;
3684 }
3685
3686 /* snprintf not strictly necessary now we've verified the value
3687 has less than eight ASCII digits, but never mind. */
3688 snprintf (s_name_buf, SCNNMLEN + 1, "/%lu", (unsigned long) string_size);
3689 /* Then strncpy takes care of any padding for us. */
3690 strncpy (section.s_name, s_name_buf, SCNNMLEN);
3691 string_size += len + 1;
3692 long_section_names = TRUE;
3693 }
3694 }
3695 #endif
3696
3697 #ifdef _LIB
3698 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3699 Ian Taylor <ian@cygnus.com>. */
3700 if (strcmp (current->name, _LIB) == 0)
3701 section.s_vaddr = 0;
3702 else
3703 #endif
3704 section.s_vaddr = current->vma;
3705 section.s_paddr = current->lma;
3706 section.s_size = current->size;
3707 #ifdef coff_get_section_load_page
3708 section.s_page = coff_get_section_load_page (current);
3709 #else
3710 section.s_page = 0;
3711 #endif
3712
3713 #ifdef COFF_WITH_PE
3714 section.s_paddr = 0;
3715 #endif
3716 #ifdef COFF_IMAGE_WITH_PE
3717 /* Reminder: s_paddr holds the virtual size of the section. */
3718 if (coff_section_data (abfd, current) != NULL
3719 && pei_section_data (abfd, current) != NULL)
3720 section.s_paddr = pei_section_data (abfd, current)->virt_size;
3721 else
3722 section.s_paddr = 0;
3723 #endif
3724
3725 /* If this section has no size or is unloadable then the scnptr
3726 will be 0 too. */
3727 if (current->size == 0
3728 || (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
3729 section.s_scnptr = 0;
3730 else
3731 section.s_scnptr = current->filepos;
3732
3733 section.s_relptr = current->rel_filepos;
3734 section.s_lnnoptr = current->line_filepos;
3735 section.s_nreloc = current->reloc_count;
3736 section.s_nlnno = current->lineno_count;
3737 #ifndef COFF_IMAGE_WITH_PE
3738 /* In PEI, relocs come in the .reloc section. */
3739 if (current->reloc_count != 0)
3740 hasrelocs = TRUE;
3741 #endif
3742 if (current->lineno_count != 0)
3743 haslinno = TRUE;
3744 #ifdef COFF_IMAGE_WITH_PE
3745 if ((current->flags & SEC_DEBUGGING) != 0
3746 && ! is_reloc_section)
3747 hasdebug = TRUE;
3748 #endif
3749
3750 #ifdef RS6000COFF_C
3751 #ifndef XCOFF64
3752 /* Indicate the use of an XCOFF overflow section header. */
3753 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3754 {
3755 section.s_nreloc = 0xffff;
3756 section.s_nlnno = 0xffff;
3757 }
3758 #endif
3759 #endif
3760
3761 section.s_flags = sec_to_styp_flags (current->name, current->flags);
3762
3763 if (!strcmp (current->name, _TEXT))
3764 text_sec = current;
3765 else if (!strcmp (current->name, _DATA))
3766 data_sec = current;
3767 else if (!strcmp (current->name, _BSS))
3768 bss_sec = current;
3769
3770 #ifdef I960
3771 section.s_align = (current->alignment_power
3772 ? 1 << current->alignment_power
3773 : 0);
3774 #endif
3775 #ifdef TIC80COFF
3776 /* TI COFF puts the alignment power in bits 8-11 of the flags. */
3777 section.s_flags |= (current->alignment_power & 0xF) << 8;
3778 #endif
3779 #ifdef COFF_ENCODE_ALIGNMENT
3780 COFF_ENCODE_ALIGNMENT(section, current->alignment_power);
3781 #endif
3782
3783 #ifdef COFF_IMAGE_WITH_PE
3784 /* Suppress output of the sections if they are null. ld
3785 includes the bss and data sections even if there is no size
3786 assigned to them. NT loader doesn't like it if these section
3787 headers are included if the sections themselves are not
3788 needed. See also coff_compute_section_file_positions. */
3789 if (section.s_size == 0)
3790 internal_f.f_nscns--;
3791 else
3792 #endif
3793 {
3794 SCNHDR buff;
3795 bfd_size_type amt = bfd_coff_scnhsz (abfd);
3796
3797 if (coff_swap_scnhdr_out (abfd, &section, &buff) == 0
3798 || bfd_bwrite (& buff, amt, abfd) != amt)
3799 return FALSE;
3800 }
3801
3802 #ifdef COFF_WITH_PE
3803 /* PE stores COMDAT section information in the symbol table. If
3804 this section is supposed to have some COMDAT info, track down
3805 the symbol in the symbol table and modify it. */
3806 if ((current->flags & SEC_LINK_ONCE) != 0)
3807 {
3808 unsigned int i, count;
3809 asymbol **psym;
3810 coff_symbol_type *csym = NULL;
3811 asymbol **psymsec;
3812
3813 psymsec = NULL;
3814 count = bfd_get_symcount (abfd);
3815 for (i = 0, psym = abfd->outsymbols; i < count; i++, psym++)
3816 {
3817 if ((*psym)->section != current)
3818 continue;
3819
3820 /* Remember the location of the first symbol in this
3821 section. */
3822 if (psymsec == NULL)
3823 psymsec = psym;
3824
3825 /* See if this is the section symbol. */
3826 if (strcmp ((*psym)->name, current->name) == 0)
3827 {
3828 csym = coff_symbol_from (abfd, *psym);
3829 if (csym == NULL
3830 || csym->native == NULL
3831 || csym->native->u.syment.n_numaux < 1
3832 || csym->native->u.syment.n_sclass != C_STAT
3833 || csym->native->u.syment.n_type != T_NULL)
3834 continue;
3835
3836 /* Here *PSYM is the section symbol for CURRENT. */
3837
3838 break;
3839 }
3840 }
3841
3842 /* Did we find it?
3843 Note that we might not if we're converting the file from
3844 some other object file format. */
3845 if (i < count)
3846 {
3847 combined_entry_type *aux;
3848
3849 /* We don't touch the x_checksum field. The
3850 x_associated field is not currently supported. */
3851
3852 aux = csym->native + 1;
3853 switch (current->flags & SEC_LINK_DUPLICATES)
3854 {
3855 case SEC_LINK_DUPLICATES_DISCARD:
3856 aux->u.auxent.x_scn.x_comdat = IMAGE_COMDAT_SELECT_ANY;
3857 break;
3858
3859 case SEC_LINK_DUPLICATES_ONE_ONLY:
3860 aux->u.auxent.x_scn.x_comdat =
3861 IMAGE_COMDAT_SELECT_NODUPLICATES;
3862 break;
3863
3864 case SEC_LINK_DUPLICATES_SAME_SIZE:
3865 aux->u.auxent.x_scn.x_comdat =
3866 IMAGE_COMDAT_SELECT_SAME_SIZE;
3867 break;
3868
3869 case SEC_LINK_DUPLICATES_SAME_CONTENTS:
3870 aux->u.auxent.x_scn.x_comdat =
3871 IMAGE_COMDAT_SELECT_EXACT_MATCH;
3872 break;
3873 }
3874
3875 /* The COMDAT symbol must be the first symbol from this
3876 section in the symbol table. In order to make this
3877 work, we move the COMDAT symbol before the first
3878 symbol we found in the search above. It's OK to
3879 rearrange the symbol table at this point, because
3880 coff_renumber_symbols is going to rearrange it
3881 further and fix up all the aux entries. */
3882 if (psym != psymsec)
3883 {
3884 asymbol *hold;
3885 asymbol **pcopy;
3886
3887 hold = *psym;
3888 for (pcopy = psym; pcopy > psymsec; pcopy--)
3889 pcopy[0] = pcopy[-1];
3890 *psymsec = hold;
3891 }
3892 }
3893 }
3894 #endif /* COFF_WITH_PE */
3895 }
3896
3897 #ifdef RS6000COFF_C
3898 #ifndef XCOFF64
3899 /* XCOFF handles overflows in the reloc and line number count fields
3900 by creating a new section header to hold the correct values. */
3901 for (current = abfd->sections; current != NULL; current = current->next)
3902 {
3903 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3904 {
3905 struct internal_scnhdr scnhdr;
3906 SCNHDR buff;
3907 bfd_size_type amt;
3908
3909 internal_f.f_nscns++;
3910 strncpy (&(scnhdr.s_name[0]), current->name, 8);
3911 scnhdr.s_paddr = current->reloc_count;
3912 scnhdr.s_vaddr = current->lineno_count;
3913 scnhdr.s_size = 0;
3914 scnhdr.s_scnptr = 0;
3915 scnhdr.s_relptr = current->rel_filepos;
3916 scnhdr.s_lnnoptr = current->line_filepos;
3917 scnhdr.s_nreloc = current->target_index;
3918 scnhdr.s_nlnno = current->target_index;
3919 scnhdr.s_flags = STYP_OVRFLO;
3920 amt = bfd_coff_scnhsz (abfd);
3921 if (coff_swap_scnhdr_out (abfd, &scnhdr, &buff) == 0
3922 || bfd_bwrite (& buff, amt, abfd) != amt)
3923 return FALSE;
3924 }
3925 }
3926 #endif
3927 #endif
3928
3929 /* OK, now set up the filehdr... */
3930
3931 /* Don't include the internal abs section in the section count */
3932
3933 /* We will NOT put a fucking timestamp in the header here. Every time you
3934 put it back, I will come in and take it out again. I'm sorry. This
3935 field does not belong here. We fill it with a 0 so it compares the
3936 same but is not a reasonable time. -- gnu@cygnus.com */
3937 internal_f.f_timdat = 0;
3938 internal_f.f_flags = 0;
3939
3940 if (abfd->flags & EXEC_P)
3941 internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
3942 else
3943 {
3944 internal_f.f_opthdr = 0;
3945 #ifdef RS6000COFF_C
3946 #ifndef XCOFF64
3947 if (xcoff_data (abfd)->full_aouthdr)
3948 internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
3949 else
3950 internal_f.f_opthdr = SMALL_AOUTSZ;
3951 #endif
3952 #endif
3953 }
3954
3955 if (!hasrelocs)
3956 internal_f.f_flags |= F_RELFLG;
3957 if (!haslinno)
3958 internal_f.f_flags |= F_LNNO;
3959 if (abfd->flags & EXEC_P)
3960 internal_f.f_flags |= F_EXEC;
3961 #ifdef COFF_IMAGE_WITH_PE
3962 if (! hasdebug)
3963 internal_f.f_flags |= IMAGE_FILE_DEBUG_STRIPPED;
3964 if (pe_data (abfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE)
3965 internal_f.f_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
3966 #endif
3967
3968 #ifndef COFF_WITH_pex64
3969 #ifdef COFF_WITH_PE
3970 internal_f.f_flags |= IMAGE_FILE_32BIT_MACHINE;
3971 #else
3972 if (bfd_little_endian (abfd))
3973 internal_f.f_flags |= F_AR32WR;
3974 else
3975 internal_f.f_flags |= F_AR32W;
3976 #endif
3977 #endif
3978
3979 #ifdef TI_TARGET_ID
3980 /* Target id is used in TI COFF v1 and later; COFF0 won't use this field,
3981 but it doesn't hurt to set it internally. */
3982 internal_f.f_target_id = TI_TARGET_ID;
3983 #endif
3984 #ifdef TIC80_TARGET_ID
3985 internal_f.f_target_id = TIC80_TARGET_ID;
3986 #endif
3987
3988 /* FIXME, should do something about the other byte orders and
3989 architectures. */
3990
3991 #ifdef RS6000COFF_C
3992 if ((abfd->flags & DYNAMIC) != 0)
3993 internal_f.f_flags |= F_SHROBJ;
3994 if (bfd_get_section_by_name (abfd, _LOADER) != NULL)
3995 internal_f.f_flags |= F_DYNLOAD;
3996 #endif
3997
3998 memset (&internal_a, 0, sizeof internal_a);
3999
4000 /* Set up architecture-dependent stuff. */
4001 {
4002 unsigned int magic = 0;
4003 unsigned short flags = 0;
4004
4005 coff_set_flags (abfd, &magic, &flags);
4006 internal_f.f_magic = magic;
4007 internal_f.f_flags |= flags;
4008 /* ...and the "opt"hdr... */
4009
4010 #ifdef TICOFF_AOUT_MAGIC
4011 internal_a.magic = TICOFF_AOUT_MAGIC;
4012 #define __A_MAGIC_SET__
4013 #endif
4014 #ifdef TIC80COFF
4015 internal_a.magic = TIC80_ARCH_MAGIC;
4016 #define __A_MAGIC_SET__
4017 #endif /* TIC80 */
4018 #ifdef I860
4019 /* FIXME: What are the a.out magic numbers for the i860? */
4020 internal_a.magic = 0;
4021 #define __A_MAGIC_SET__
4022 #endif /* I860 */
4023 #ifdef I960
4024 internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC);
4025 #define __A_MAGIC_SET__
4026 #endif /* I960 */
4027 #if M88
4028 #define __A_MAGIC_SET__
4029 internal_a.magic = PAGEMAGICBCS;
4030 #endif /* M88 */
4031
4032 #if APOLLO_M68
4033 #define __A_MAGIC_SET__
4034 internal_a.magic = APOLLO_COFF_VERSION_NUMBER;
4035 #endif
4036
4037 #if defined(M68) || defined(WE32K) || defined(M68K)
4038 #define __A_MAGIC_SET__
4039 #if defined(LYNXOS)
4040 internal_a.magic = LYNXCOFFMAGIC;
4041 #else
4042 #if defined(TARG_AUX)
4043 internal_a.magic = (abfd->flags & D_PAGED ? PAGEMAGICPEXECPAGED :
4044 abfd->flags & WP_TEXT ? PAGEMAGICPEXECSWAPPED :
4045 PAGEMAGICEXECSWAPPED);
4046 #else
4047 #if defined (PAGEMAGICPEXECPAGED)
4048 internal_a.magic = PAGEMAGICPEXECPAGED;
4049 #endif
4050 #endif /* TARG_AUX */
4051 #endif /* LYNXOS */
4052 #endif /* M68 || WE32K || M68K */
4053
4054 #if defined(ARM)
4055 #define __A_MAGIC_SET__
4056 internal_a.magic = ZMAGIC;
4057 #endif
4058
4059 #if defined(PPC_PE)
4060 #define __A_MAGIC_SET__
4061 internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
4062 #endif
4063
4064 #if defined MCORE_PE
4065 #define __A_MAGIC_SET__
4066 internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
4067 #endif
4068
4069 #if defined(I386)
4070 #define __A_MAGIC_SET__
4071 #if defined LYNXOS
4072 internal_a.magic = LYNXCOFFMAGIC;
4073 #elif defined AMD64
4074 internal_a.magic = IMAGE_NT_OPTIONAL_HDR64_MAGIC;
4075 #else
4076 internal_a.magic = ZMAGIC;
4077 #endif
4078 #endif /* I386 */
4079
4080 #if defined(IA64)
4081 #define __A_MAGIC_SET__
4082 internal_a.magic = PE32PMAGIC;
4083 #endif /* IA64 */
4084
4085 #if defined(SPARC)
4086 #define __A_MAGIC_SET__
4087 #if defined(LYNXOS)
4088 internal_a.magic = LYNXCOFFMAGIC;
4089 #endif /* LYNXOS */
4090 #endif /* SPARC */
4091
4092 #ifdef RS6000COFF_C
4093 #define __A_MAGIC_SET__
4094 internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC :
4095 (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC :
4096 RS6K_AOUTHDR_OMAGIC;
4097 #endif
4098
4099 #if defined(SH) && defined(COFF_WITH_PE)
4100 #define __A_MAGIC_SET__
4101 internal_a.magic = SH_PE_MAGIC;
4102 #endif
4103
4104 #if defined(MIPS) && defined(COFF_WITH_PE)
4105 #define __A_MAGIC_SET__
4106 internal_a.magic = MIPS_PE_MAGIC;
4107 #endif
4108
4109 #ifdef OR32
4110 #define __A_MAGIC_SET__
4111 internal_a.magic = NMAGIC; /* Assume separate i/d. */
4112 #endif
4113
4114 #ifdef MAXQ20MAGIC
4115 #define __A_MAGIC_SET__
4116 internal_a.magic = MAXQ20MAGIC;
4117 #endif
4118
4119 #ifndef __A_MAGIC_SET__
4120 #include "Your aouthdr magic number is not being set!"
4121 #else
4122 #undef __A_MAGIC_SET__
4123 #endif
4124 }
4125
4126 /* FIXME: Does anybody ever set this to another value? */
4127 internal_a.vstamp = 0;
4128
4129 /* Now should write relocs, strings, syms. */
4130 obj_sym_filepos (abfd) = sym_base;
4131
4132 if (bfd_get_symcount (abfd) != 0)
4133 {
4134 int firstundef;
4135
4136 if (!coff_renumber_symbols (abfd, &firstundef))
4137 return FALSE;
4138 coff_mangle_symbols (abfd);
4139 if (! coff_write_symbols (abfd))
4140 return FALSE;
4141 if (! coff_write_linenumbers (abfd))
4142 return FALSE;
4143 if (! coff_write_relocs (abfd, firstundef))
4144 return FALSE;
4145 }
4146 #ifdef COFF_LONG_SECTION_NAMES
4147 else if (long_section_names && ! obj_coff_strings_written (abfd))
4148 {
4149 /* If we have long section names we have to write out the string
4150 table even if there are no symbols. */
4151 if (! coff_write_symbols (abfd))
4152 return FALSE;
4153 }
4154 #endif
4155 #ifdef COFF_IMAGE_WITH_PE
4156 #ifdef PPC_PE
4157 else if ((abfd->flags & EXEC_P) != 0)
4158 {
4159 bfd_byte b;
4160
4161 /* PowerPC PE appears to require that all executable files be
4162 rounded up to the page size. */
4163 b = 0;
4164 if (bfd_seek (abfd,
4165 (file_ptr) BFD_ALIGN (sym_base, COFF_PAGE_SIZE) - 1,
4166 SEEK_SET) != 0
4167 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
4168 return FALSE;
4169 }
4170 #endif
4171 #endif
4172
4173 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
4174 backend linker, and obj_raw_syment_count is not valid until after
4175 coff_write_symbols is called. */
4176 if (obj_raw_syment_count (abfd) != 0)
4177 {
4178 internal_f.f_symptr = sym_base;
4179 #ifdef RS6000COFF_C
4180 /* AIX appears to require that F_RELFLG not be set if there are
4181 local symbols but no relocations. */
4182 internal_f.f_flags &=~ F_RELFLG;
4183 #endif
4184 }
4185 else
4186 {
4187 if (long_section_names)
4188 internal_f.f_symptr = sym_base;
4189 else
4190 internal_f.f_symptr = 0;
4191 internal_f.f_flags |= F_LSYMS;
4192 }
4193
4194 if (text_sec)
4195 {
4196 internal_a.tsize = text_sec->size;
4197 internal_a.text_start = internal_a.tsize ? text_sec->vma : 0;
4198 }
4199 if (data_sec)
4200 {
4201 internal_a.dsize = data_sec->size;
4202 internal_a.data_start = internal_a.dsize ? data_sec->vma : 0;
4203 }
4204 if (bss_sec)
4205 {
4206 internal_a.bsize = bss_sec->size;
4207 if (internal_a.bsize && bss_sec->vma < internal_a.data_start)
4208 internal_a.data_start = bss_sec->vma;
4209 }
4210
4211 internal_a.entry = bfd_get_start_address (abfd);
4212 internal_f.f_nsyms = obj_raw_syment_count (abfd);
4213
4214 #ifdef RS6000COFF_C
4215 if (xcoff_data (abfd)->full_aouthdr)
4216 {
4217 bfd_vma toc;
4218 asection *loader_sec;
4219
4220 internal_a.vstamp = 1;
4221
4222 internal_a.o_snentry = xcoff_data (abfd)->snentry;
4223 if (internal_a.o_snentry == 0)
4224 internal_a.entry = (bfd_vma) -1;
4225
4226 if (text_sec != NULL)
4227 {
4228 internal_a.o_sntext = text_sec->target_index;
4229 internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec);
4230 }
4231 else
4232 {
4233 internal_a.o_sntext = 0;
4234 internal_a.o_algntext = 0;
4235 }
4236 if (data_sec != NULL)
4237 {
4238 internal_a.o_sndata = data_sec->target_index;
4239 internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec);
4240 }
4241 else
4242 {
4243 internal_a.o_sndata = 0;
4244 internal_a.o_algndata = 0;
4245 }
4246 loader_sec = bfd_get_section_by_name (abfd, ".loader");
4247 if (loader_sec != NULL)
4248 internal_a.o_snloader = loader_sec->target_index;
4249 else
4250 internal_a.o_snloader = 0;
4251 if (bss_sec != NULL)
4252 internal_a.o_snbss = bss_sec->target_index;
4253 else
4254 internal_a.o_snbss = 0;
4255
4256 toc = xcoff_data (abfd)->toc;
4257 internal_a.o_toc = toc;
4258 internal_a.o_sntoc = xcoff_data (abfd)->sntoc;
4259
4260 internal_a.o_modtype = xcoff_data (abfd)->modtype;
4261 if (xcoff_data (abfd)->cputype != -1)
4262 internal_a.o_cputype = xcoff_data (abfd)->cputype;
4263 else
4264 {
4265 switch (bfd_get_arch (abfd))
4266 {
4267 case bfd_arch_rs6000:
4268 internal_a.o_cputype = 4;
4269 break;
4270 case bfd_arch_powerpc:
4271 if (bfd_get_mach (abfd) == bfd_mach_ppc)
4272 internal_a.o_cputype = 3;
4273 else
4274 internal_a.o_cputype = 1;
4275 break;
4276 default:
4277 abort ();
4278 }
4279 }
4280 internal_a.o_maxstack = xcoff_data (abfd)->maxstack;
4281 internal_a.o_maxdata = xcoff_data (abfd)->maxdata;
4282 }
4283 #endif
4284
4285 /* Now write them. */
4286 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
4287 return FALSE;
4288
4289 {
4290 char * buff;
4291 bfd_size_type amount = bfd_coff_filhsz (abfd);
4292
4293 buff = (char *) bfd_malloc (amount);
4294 if (buff == NULL)
4295 return FALSE;
4296
4297 bfd_coff_swap_filehdr_out (abfd, & internal_f, buff);
4298 amount = bfd_bwrite (buff, amount, abfd);
4299
4300 free (buff);
4301
4302 if (amount != bfd_coff_filhsz (abfd))
4303 return FALSE;
4304 }
4305
4306 if (abfd->flags & EXEC_P)
4307 {
4308 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
4309 include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */
4310 char * buff;
4311 bfd_size_type amount = bfd_coff_aoutsz (abfd);
4312
4313 buff = (char *) bfd_malloc (amount);
4314 if (buff == NULL)
4315 return FALSE;
4316
4317 coff_swap_aouthdr_out (abfd, & internal_a, buff);
4318 amount = bfd_bwrite (buff, amount, abfd);
4319
4320 free (buff);
4321
4322 if (amount != bfd_coff_aoutsz (abfd))
4323 return FALSE;
4324
4325 #ifdef COFF_IMAGE_WITH_PE
4326 if (! coff_apply_checksum (abfd))
4327 return FALSE;
4328 #endif
4329 }
4330 #ifdef RS6000COFF_C
4331 else
4332 {
4333 AOUTHDR buff;
4334 size_t size;
4335
4336 /* XCOFF seems to always write at least a small a.out header. */
4337 coff_swap_aouthdr_out (abfd, & internal_a, & buff);
4338 if (xcoff_data (abfd)->full_aouthdr)
4339 size = bfd_coff_aoutsz (abfd);
4340 else
4341 size = SMALL_AOUTSZ;
4342 if (bfd_bwrite (& buff, (bfd_size_type) size, abfd) != size)
4343 return FALSE;
4344 }
4345 #endif
4346
4347 return TRUE;
4348 }
4349
4350 static bfd_boolean
4351 coff_set_section_contents (bfd * abfd,
4352 sec_ptr section,
4353 const void * location,
4354 file_ptr offset,
4355 bfd_size_type count)
4356 {
4357 if (! abfd->output_has_begun) /* Set by bfd.c handler. */
4358 {
4359 if (! coff_compute_section_file_positions (abfd))
4360 return FALSE;
4361 }
4362
4363 #if defined(_LIB) && !defined(TARG_AUX)
4364 /* The physical address field of a .lib section is used to hold the
4365 number of shared libraries in the section. This code counts the
4366 number of sections being written, and increments the lma field
4367 with the number.
4368
4369 I have found no documentation on the contents of this section.
4370 Experimentation indicates that the section contains zero or more
4371 records, each of which has the following structure:
4372
4373 - a (four byte) word holding the length of this record, in words,
4374 - a word that always seems to be set to "2",
4375 - the path to a shared library, null-terminated and then padded
4376 to a whole word boundary.
4377
4378 bfd_assert calls have been added to alert if an attempt is made
4379 to write a section which doesn't follow these assumptions. The
4380 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
4381 <robertl@arnet.com> (Thanks!).
4382
4383 Gvran Uddeborg <gvran@uddeborg.pp.se>. */
4384 if (strcmp (section->name, _LIB) == 0)
4385 {
4386 bfd_byte *rec, *recend;
4387
4388 rec = (bfd_byte *) location;
4389 recend = rec + count;
4390 while (rec < recend)
4391 {
4392 ++section->lma;
4393 rec += bfd_get_32 (abfd, rec) * 4;
4394 }
4395
4396 BFD_ASSERT (rec == recend);
4397 }
4398 #endif
4399
4400 /* Don't write out bss sections - one way to do this is to
4401 see if the filepos has not been set. */
4402 if (section->filepos == 0)
4403 return TRUE;
4404
4405 if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0)
4406 return FALSE;
4407
4408 if (count == 0)
4409 return TRUE;
4410
4411 return bfd_bwrite (location, count, abfd) == count;
4412 }
4413
4414 static void *
4415 buy_and_read (bfd *abfd, file_ptr where, bfd_size_type size)
4416 {
4417 void * area = bfd_alloc (abfd, size);
4418
4419 if (!area)
4420 return (NULL);
4421 if (bfd_seek (abfd, where, SEEK_SET) != 0
4422 || bfd_bread (area, size, abfd) != size)
4423 return (NULL);
4424 return (area);
4425 }
4426
4427 /*
4428 SUBSUBSECTION
4429 Reading linenumbers
4430
4431 Creating the linenumber table is done by reading in the entire
4432 coff linenumber table, and creating another table for internal use.
4433
4434 A coff linenumber table is structured so that each function
4435 is marked as having a line number of 0. Each line within the
4436 function is an offset from the first line in the function. The
4437 base of the line number information for the table is stored in
4438 the symbol associated with the function.
4439
4440 Note: The PE format uses line number 0 for a flag indicating a
4441 new source file.
4442
4443 The information is copied from the external to the internal
4444 table, and each symbol which marks a function is marked by
4445 pointing its...
4446
4447 How does this work ?
4448 */
4449
4450 static int
4451 coff_sort_func_alent (const void * arg1, const void * arg2)
4452 {
4453 const alent *al1 = *(const alent **) arg1;
4454 const alent *al2 = *(const alent **) arg2;
4455 const coff_symbol_type *s1 = (const coff_symbol_type *) (al1->u.sym);
4456 const coff_symbol_type *s2 = (const coff_symbol_type *) (al2->u.sym);
4457
4458 if (s1->symbol.value < s2->symbol.value)
4459 return -1;
4460 else if (s1->symbol.value > s2->symbol.value)
4461 return 1;
4462
4463 return 0;
4464 }
4465
4466 static bfd_boolean
4467 coff_slurp_line_table (bfd *abfd, asection *asect)
4468 {
4469 LINENO *native_lineno;
4470 alent *lineno_cache;
4471 bfd_size_type amt;
4472 unsigned int counter;
4473 alent *cache_ptr;
4474 bfd_vma prev_offset = 0;
4475 int ordered = 1;
4476 unsigned int nbr_func;
4477 LINENO *src;
4478
4479 BFD_ASSERT (asect->lineno == NULL);
4480
4481 amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent);
4482 lineno_cache = (alent *) bfd_alloc (abfd, amt);
4483 if (lineno_cache == NULL)
4484 return FALSE;
4485
4486 amt = (bfd_size_type) bfd_coff_linesz (abfd) * asect->lineno_count;
4487 native_lineno = (LINENO *) buy_and_read (abfd, asect->line_filepos, amt);
4488 if (native_lineno == NULL)
4489 {
4490 (*_bfd_error_handler)
4491 (_("%B: warning: line number table read failed"), abfd);
4492 bfd_release (abfd, lineno_cache);
4493 return FALSE;
4494 }
4495
4496 cache_ptr = lineno_cache;
4497 asect->lineno = lineno_cache;
4498 src = native_lineno;
4499 nbr_func = 0;
4500
4501 for (counter = 0; counter < asect->lineno_count; counter++)
4502 {
4503 struct internal_lineno dst;
4504
4505 bfd_coff_swap_lineno_in (abfd, src, &dst);
4506 cache_ptr->line_number = dst.l_lnno;
4507
4508 if (cache_ptr->line_number == 0)
4509 {
4510 bfd_boolean warned;
4511 bfd_signed_vma symndx;
4512 coff_symbol_type *sym;
4513
4514 nbr_func++;
4515 warned = FALSE;
4516 symndx = dst.l_addr.l_symndx;
4517 if (symndx < 0
4518 || (bfd_vma) symndx >= obj_raw_syment_count (abfd))
4519 {
4520 (*_bfd_error_handler)
4521 (_("%B: warning: illegal symbol index %ld in line numbers"),
4522 abfd, dst.l_addr.l_symndx);
4523 symndx = 0;
4524 warned = TRUE;
4525 }
4526
4527 /* FIXME: We should not be casting between ints and
4528 pointers like this. */
4529 sym = ((coff_symbol_type *)
4530 ((symndx + obj_raw_syments (abfd))
4531 ->u.syment._n._n_n._n_zeroes));
4532 cache_ptr->u.sym = (asymbol *) sym;
4533 if (sym->lineno != NULL && ! warned)
4534 (*_bfd_error_handler)
4535 (_("%B: warning: duplicate line number information for `%s'"),
4536 abfd, bfd_asymbol_name (&sym->symbol));
4537
4538 sym->lineno = cache_ptr;
4539 if (sym->symbol.value < prev_offset)
4540 ordered = 0;
4541 prev_offset = sym->symbol.value;
4542 }
4543 else
4544 cache_ptr->u.offset = dst.l_addr.l_paddr
4545 - bfd_section_vma (abfd, asect);
4546
4547 cache_ptr++;
4548 src++;
4549 }
4550 cache_ptr->line_number = 0;
4551 bfd_release (abfd, native_lineno);
4552
4553 /* On some systems (eg AIX5.3) the lineno table may not be sorted. */
4554 if (!ordered)
4555 {
4556 /* Sort the table. */
4557 alent **func_table;
4558 alent *n_lineno_cache;
4559
4560 /* Create a table of functions. */
4561 func_table = (alent **) bfd_alloc (abfd, nbr_func * sizeof (alent *));
4562 if (func_table != NULL)
4563 {
4564 alent **p = func_table;
4565 unsigned int i;
4566
4567 for (i = 0; i < counter; i++)
4568 if (lineno_cache[i].line_number == 0)
4569 *p++ = &lineno_cache[i];
4570
4571 /* Sort by functions. */
4572 qsort (func_table, nbr_func, sizeof (alent *), coff_sort_func_alent);
4573
4574 /* Create the new sorted table. */
4575 amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent);
4576 n_lineno_cache = (alent *) bfd_alloc (abfd, amt);
4577 if (n_lineno_cache != NULL)
4578 {
4579 alent *n_cache_ptr = n_lineno_cache;
4580
4581 for (i = 0; i < nbr_func; i++)
4582 {
4583 coff_symbol_type *sym;
4584 alent *old_ptr = func_table[i];
4585
4586 /* Copy the function entry and update it. */
4587 *n_cache_ptr = *old_ptr;
4588 sym = (coff_symbol_type *)n_cache_ptr->u.sym;
4589 sym->lineno = n_cache_ptr;
4590 n_cache_ptr++;
4591 old_ptr++;
4592
4593 /* Copy the line number entries. */
4594 while (old_ptr->line_number != 0)
4595 *n_cache_ptr++ = *old_ptr++;
4596 }
4597 n_cache_ptr->line_number = 0;
4598 memcpy (lineno_cache, n_lineno_cache, amt);
4599 }
4600 bfd_release (abfd, func_table);
4601 }
4602 }
4603
4604 return TRUE;
4605 }
4606
4607 /* Slurp in the symbol table, converting it to generic form. Note
4608 that if coff_relocate_section is defined, the linker will read
4609 symbols via coff_link_add_symbols, rather than via this routine. */
4610
4611 static bfd_boolean
4612 coff_slurp_symbol_table (bfd * abfd)
4613 {
4614 combined_entry_type *native_symbols;
4615 coff_symbol_type *cached_area;
4616 unsigned int *table_ptr;
4617 bfd_size_type amt;
4618 unsigned int number_of_symbols = 0;
4619
4620 if (obj_symbols (abfd))
4621 return TRUE;
4622
4623 /* Read in the symbol table. */
4624 if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL)
4625 return FALSE;
4626
4627 /* Allocate enough room for all the symbols in cached form. */
4628 amt = obj_raw_syment_count (abfd);
4629 amt *= sizeof (coff_symbol_type);
4630 cached_area = (coff_symbol_type *) bfd_alloc (abfd, amt);
4631 if (cached_area == NULL)
4632 return FALSE;
4633
4634 amt = obj_raw_syment_count (abfd);
4635 amt *= sizeof (unsigned int);
4636 table_ptr = (unsigned int *) bfd_alloc (abfd, amt);
4637
4638 if (table_ptr == NULL)
4639 return FALSE;
4640 else
4641 {
4642 coff_symbol_type *dst = cached_area;
4643 unsigned int last_native_index = obj_raw_syment_count (abfd);
4644 unsigned int this_index = 0;
4645
4646 while (this_index < last_native_index)
4647 {
4648 combined_entry_type *src = native_symbols + this_index;
4649 table_ptr[this_index] = number_of_symbols;
4650 dst->symbol.the_bfd = abfd;
4651
4652 dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset);
4653 /* We use the native name field to point to the cached field. */
4654 src->u.syment._n._n_n._n_zeroes = (bfd_hostptr_t) dst;
4655 dst->symbol.section = coff_section_from_bfd_index (abfd,
4656 src->u.syment.n_scnum);
4657 dst->symbol.flags = 0;
4658 dst->done_lineno = FALSE;
4659
4660 switch (src->u.syment.n_sclass)
4661 {
4662 #ifdef I960
4663 case C_LEAFEXT:
4664 /* Fall through to next case. */
4665 #endif
4666
4667 case C_EXT:
4668 case C_WEAKEXT:
4669 #if defined ARM
4670 case C_THUMBEXT:
4671 case C_THUMBEXTFUNC:
4672 #endif
4673 #ifdef RS6000COFF_C
4674 case C_HIDEXT:
4675 #endif
4676 #ifdef C_SYSTEM
4677 case C_SYSTEM: /* System Wide variable. */
4678 #endif
4679 #ifdef COFF_WITH_PE
4680 /* In PE, 0x68 (104) denotes a section symbol. */
4681 case C_SECTION:
4682 /* In PE, 0x69 (105) denotes a weak external symbol. */
4683 case C_NT_WEAK:
4684 #endif
4685 switch (coff_classify_symbol (abfd, &src->u.syment))
4686 {
4687 case COFF_SYMBOL_GLOBAL:
4688 dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
4689 #if defined COFF_WITH_PE
4690 /* PE sets the symbol to a value relative to the
4691 start of the section. */
4692 dst->symbol.value = src->u.syment.n_value;
4693 #else
4694 dst->symbol.value = (src->u.syment.n_value
4695 - dst->symbol.section->vma);
4696 #endif
4697 if (ISFCN ((src->u.syment.n_type)))
4698 /* A function ext does not go at the end of a
4699 file. */
4700 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4701 break;
4702
4703 case COFF_SYMBOL_COMMON:
4704 dst->symbol.section = bfd_com_section_ptr;
4705 dst->symbol.value = src->u.syment.n_value;
4706 break;
4707
4708 case COFF_SYMBOL_UNDEFINED:
4709 dst->symbol.section = bfd_und_section_ptr;
4710 dst->symbol.value = 0;
4711 break;
4712
4713 case COFF_SYMBOL_PE_SECTION:
4714 dst->symbol.flags |= BSF_EXPORT | BSF_SECTION_SYM;
4715 dst->symbol.value = 0;
4716 break;
4717
4718 case COFF_SYMBOL_LOCAL:
4719 dst->symbol.flags = BSF_LOCAL;
4720 #if defined COFF_WITH_PE
4721 /* PE sets the symbol to a value relative to the
4722 start of the section. */
4723 dst->symbol.value = src->u.syment.n_value;
4724 #else
4725 dst->symbol.value = (src->u.syment.n_value
4726 - dst->symbol.section->vma);
4727 #endif
4728 if (ISFCN ((src->u.syment.n_type)))
4729 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4730 break;
4731 }
4732
4733 #ifdef RS6000COFF_C
4734 /* A symbol with a csect entry should not go at the end. */
4735 if (src->u.syment.n_numaux > 0)
4736 dst->symbol.flags |= BSF_NOT_AT_END;
4737 #endif
4738
4739 #ifdef COFF_WITH_PE
4740 if (src->u.syment.n_sclass == C_NT_WEAK)
4741 dst->symbol.flags |= BSF_WEAK;
4742
4743 if (src->u.syment.n_sclass == C_SECTION
4744 && src->u.syment.n_scnum > 0)
4745 dst->symbol.flags = BSF_LOCAL;
4746 #endif
4747 if (src->u.syment.n_sclass == C_WEAKEXT)
4748 dst->symbol.flags |= BSF_WEAK;
4749
4750 break;
4751
4752 case C_STAT: /* Static. */
4753 #ifdef I960
4754 case C_LEAFSTAT: /* Static leaf procedure. */
4755 #endif
4756 #if defined ARM
4757 case C_THUMBSTAT: /* Thumb static. */
4758 case C_THUMBLABEL: /* Thumb label. */
4759 case C_THUMBSTATFUNC:/* Thumb static function. */
4760 #endif
4761 case C_LABEL: /* Label. */
4762 if (src->u.syment.n_scnum == N_DEBUG)
4763 dst->symbol.flags = BSF_DEBUGGING;
4764 else
4765 dst->symbol.flags = BSF_LOCAL;
4766
4767 /* Base the value as an index from the base of the
4768 section, if there is one. */
4769 if (dst->symbol.section)
4770 {
4771 #if defined COFF_WITH_PE
4772 /* PE sets the symbol to a value relative to the
4773 start of the section. */
4774 dst->symbol.value = src->u.syment.n_value;
4775 #else
4776 dst->symbol.value = (src->u.syment.n_value
4777 - dst->symbol.section->vma);
4778 #endif
4779 }
4780 else
4781 dst->symbol.value = src->u.syment.n_value;
4782 break;
4783
4784 case C_MOS: /* Member of structure. */
4785 case C_EOS: /* End of structure. */
4786 case C_REGPARM: /* Register parameter. */
4787 case C_REG: /* register variable. */
4788 /* C_AUTOARG conflicts with TI COFF C_UEXT. */
4789 #if !defined (TIC80COFF) && !defined (TICOFF)
4790 #ifdef C_AUTOARG
4791 case C_AUTOARG: /* 960-specific storage class. */
4792 #endif
4793 #endif
4794 case C_TPDEF: /* Type definition. */
4795 case C_ARG:
4796 case C_AUTO: /* Automatic variable. */
4797 case C_FIELD: /* Bit field. */
4798 case C_ENTAG: /* Enumeration tag. */
4799 case C_MOE: /* Member of enumeration. */
4800 case C_MOU: /* Member of union. */
4801 case C_UNTAG: /* Union tag. */
4802 dst->symbol.flags = BSF_DEBUGGING;
4803 dst->symbol.value = (src->u.syment.n_value);
4804 break;
4805
4806 case C_FILE: /* File name. */
4807 case C_STRTAG: /* Structure tag. */
4808 #ifdef RS6000COFF_C
4809 case C_GSYM:
4810 case C_LSYM:
4811 case C_PSYM:
4812 case C_RSYM:
4813 case C_RPSYM:
4814 case C_STSYM:
4815 case C_TCSYM:
4816 case C_BCOMM:
4817 case C_ECOML:
4818 case C_ECOMM:
4819 case C_DECL:
4820 case C_ENTRY:
4821 case C_FUN:
4822 case C_ESTAT:
4823 #endif
4824 dst->symbol.flags = BSF_DEBUGGING;
4825 dst->symbol.value = (src->u.syment.n_value);
4826 break;
4827
4828 #ifdef RS6000COFF_C
4829 case C_BINCL: /* Beginning of include file. */
4830 case C_EINCL: /* Ending of include file. */
4831 /* The value is actually a pointer into the line numbers
4832 of the file. We locate the line number entry, and
4833 set the section to the section which contains it, and
4834 the value to the index in that section. */
4835 {
4836 asection *sec;
4837
4838 dst->symbol.flags = BSF_DEBUGGING;
4839 for (sec = abfd->sections; sec != NULL; sec = sec->next)
4840 if (sec->line_filepos <= (file_ptr) src->u.syment.n_value
4841 && ((file_ptr) (sec->line_filepos
4842 + sec->lineno_count * bfd_coff_linesz (abfd))
4843 > (file_ptr) src->u.syment.n_value))
4844 break;
4845 if (sec == NULL)
4846 dst->symbol.value = 0;
4847 else
4848 {
4849 dst->symbol.section = sec;
4850 dst->symbol.value = ((src->u.syment.n_value
4851 - sec->line_filepos)
4852 / bfd_coff_linesz (abfd));
4853 src->fix_line = 1;
4854 }
4855 }
4856 break;
4857
4858 case C_BSTAT:
4859 dst->symbol.flags = BSF_DEBUGGING;
4860
4861 /* The value is actually a symbol index. Save a pointer
4862 to the symbol instead of the index. FIXME: This
4863 should use a union. */
4864 src->u.syment.n_value =
4865 (long) (native_symbols + src->u.syment.n_value);
4866 dst->symbol.value = src->u.syment.n_value;
4867 src->fix_value = 1;
4868 break;
4869 #endif
4870
4871 case C_BLOCK: /* ".bb" or ".eb". */
4872 case C_FCN: /* ".bf" or ".ef" (or PE ".lf"). */
4873 case C_EFCN: /* Physical end of function. */
4874 #if defined COFF_WITH_PE
4875 /* PE sets the symbol to a value relative to the start
4876 of the section. */
4877 dst->symbol.value = src->u.syment.n_value;
4878 if (strcmp (dst->symbol.name, ".bf") != 0)
4879 {
4880 /* PE uses funny values for .ef and .lf; don't
4881 relocate them. */
4882 dst->symbol.flags = BSF_DEBUGGING;
4883 }
4884 else
4885 dst->symbol.flags = BSF_DEBUGGING | BSF_DEBUGGING_RELOC;
4886 #else
4887 /* Base the value as an index from the base of the
4888 section. */
4889 dst->symbol.flags = BSF_LOCAL;
4890 dst->symbol.value = (src->u.syment.n_value
4891 - dst->symbol.section->vma);
4892 #endif
4893 break;
4894
4895 case C_STATLAB: /* Static load time label. */
4896 dst->symbol.value = src->u.syment.n_value;
4897 dst->symbol.flags = BSF_GLOBAL;
4898 break;
4899
4900 case C_NULL:
4901 /* PE DLLs sometimes have zeroed out symbols for some
4902 reason. Just ignore them without a warning. */
4903 if (src->u.syment.n_type == 0
4904 && src->u.syment.n_value == 0
4905 && src->u.syment.n_scnum == 0)
4906 break;
4907 /* Fall through. */
4908 case C_EXTDEF: /* External definition. */
4909 case C_ULABEL: /* Undefined label. */
4910 case C_USTATIC: /* Undefined static. */
4911 #ifndef COFF_WITH_PE
4912 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4913 class to represent a section symbol. */
4914 case C_LINE: /* line # reformatted as symbol table entry. */
4915 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4916 case C_ALIAS: /* Duplicate tag. */
4917 #endif
4918 /* New storage classes for TI COFF. */
4919 #if defined(TIC80COFF) || defined(TICOFF)
4920 case C_UEXT: /* Tentative external definition. */
4921 #endif
4922 case C_EXTLAB: /* External load time label. */
4923 case C_HIDDEN: /* Ext symbol in dmert public lib. */
4924 default:
4925 (*_bfd_error_handler)
4926 (_("%B: Unrecognized storage class %d for %s symbol `%s'"),
4927 abfd, src->u.syment.n_sclass,
4928 dst->symbol.section->name, dst->symbol.name);
4929 dst->symbol.flags = BSF_DEBUGGING;
4930 dst->symbol.value = (src->u.syment.n_value);
4931 break;
4932 }
4933
4934 dst->native = src;
4935
4936 dst->symbol.udata.i = 0;
4937 dst->lineno = NULL;
4938 this_index += (src->u.syment.n_numaux) + 1;
4939 dst++;
4940 number_of_symbols++;
4941 }
4942 }
4943
4944 obj_symbols (abfd) = cached_area;
4945 obj_raw_syments (abfd) = native_symbols;
4946
4947 bfd_get_symcount (abfd) = number_of_symbols;
4948 obj_convert (abfd) = table_ptr;
4949 /* Slurp the line tables for each section too. */
4950 {
4951 asection *p;
4952
4953 p = abfd->sections;
4954 while (p)
4955 {
4956 coff_slurp_line_table (abfd, p);
4957 p = p->next;
4958 }
4959 }
4960
4961 return TRUE;
4962 }
4963
4964 /* Classify a COFF symbol. A couple of targets have globally visible
4965 symbols which are not class C_EXT, and this handles those. It also
4966 recognizes some special PE cases. */
4967
4968 static enum coff_symbol_classification
4969 coff_classify_symbol (bfd *abfd,
4970 struct internal_syment *syment)
4971 {
4972 /* FIXME: This partially duplicates the switch in
4973 coff_slurp_symbol_table. */
4974 switch (syment->n_sclass)
4975 {
4976 case C_EXT:
4977 case C_WEAKEXT:
4978 #ifdef I960
4979 case C_LEAFEXT:
4980 #endif
4981 #ifdef ARM
4982 case C_THUMBEXT:
4983 case C_THUMBEXTFUNC:
4984 #endif
4985 #ifdef C_SYSTEM
4986 case C_SYSTEM:
4987 #endif
4988 #ifdef COFF_WITH_PE
4989 case C_NT_WEAK:
4990 #endif
4991 if (syment->n_scnum == 0)
4992 {
4993 if (syment->n_value == 0)
4994 return COFF_SYMBOL_UNDEFINED;
4995 else
4996 return COFF_SYMBOL_COMMON;
4997 }
4998 return COFF_SYMBOL_GLOBAL;
4999
5000 default:
5001 break;
5002 }
5003
5004 #ifdef COFF_WITH_PE
5005 if (syment->n_sclass == C_STAT)
5006 {
5007 if (syment->n_scnum == 0)
5008 /* The Microsoft compiler sometimes generates these if a
5009 small static function is inlined every time it is used.
5010 The function is discarded, but the symbol table entry
5011 remains. */
5012 return COFF_SYMBOL_LOCAL;
5013
5014 #ifdef STRICT_PE_FORMAT
5015 /* This is correct for Microsoft generated objects, but it
5016 breaks gas generated objects. */
5017 if (syment->n_value == 0)
5018 {
5019 asection *sec;
5020 char buf[SYMNMLEN + 1];
5021
5022 sec = coff_section_from_bfd_index (abfd, syment->n_scnum);
5023 if (sec != NULL
5024 && (strcmp (bfd_get_section_name (abfd, sec),
5025 _bfd_coff_internal_syment_name (abfd, syment, buf))
5026 == 0))
5027 return COFF_SYMBOL_PE_SECTION;
5028 }
5029 #endif
5030
5031 return COFF_SYMBOL_LOCAL;
5032 }
5033
5034 if (syment->n_sclass == C_SECTION)
5035 {
5036 /* In some cases in a DLL generated by the Microsoft linker, the
5037 n_value field will contain garbage. FIXME: This should
5038 probably be handled by the swapping function instead. */
5039 syment->n_value = 0;
5040 if (syment->n_scnum == 0)
5041 return COFF_SYMBOL_UNDEFINED;
5042 return COFF_SYMBOL_PE_SECTION;
5043 }
5044 #endif /* COFF_WITH_PE */
5045
5046 /* If it is not a global symbol, we presume it is a local symbol. */
5047 if (syment->n_scnum == 0)
5048 {
5049 char buf[SYMNMLEN + 1];
5050
5051 (*_bfd_error_handler)
5052 (_("warning: %B: local symbol `%s' has no section"),
5053 abfd, _bfd_coff_internal_syment_name (abfd, syment, buf));
5054 }
5055
5056 return COFF_SYMBOL_LOCAL;
5057 }
5058
5059 /*
5060 SUBSUBSECTION
5061 Reading relocations
5062
5063 Coff relocations are easily transformed into the internal BFD form
5064 (@code{arelent}).
5065
5066 Reading a coff relocation table is done in the following stages:
5067
5068 o Read the entire coff relocation table into memory.
5069
5070 o Process each relocation in turn; first swap it from the
5071 external to the internal form.
5072
5073 o Turn the symbol referenced in the relocation's symbol index
5074 into a pointer into the canonical symbol table.
5075 This table is the same as the one returned by a call to
5076 @code{bfd_canonicalize_symtab}. The back end will call that
5077 routine and save the result if a canonicalization hasn't been done.
5078
5079 o The reloc index is turned into a pointer to a howto
5080 structure, in a back end specific way. For instance, the 386
5081 and 960 use the @code{r_type} to directly produce an index
5082 into a howto table vector; the 88k subtracts a number from the
5083 @code{r_type} field and creates an addend field.
5084 */
5085
5086 #ifndef CALC_ADDEND
5087 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
5088 { \
5089 coff_symbol_type *coffsym = NULL; \
5090 \
5091 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
5092 coffsym = (obj_symbols (abfd) \
5093 + (cache_ptr->sym_ptr_ptr - symbols)); \
5094 else if (ptr) \
5095 coffsym = coff_symbol_from (abfd, ptr); \
5096 if (coffsym != NULL \
5097 && coffsym->native->u.syment.n_scnum == 0) \
5098 cache_ptr->addend = 0; \
5099 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
5100 && ptr->section != NULL) \
5101 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
5102 else \
5103 cache_ptr->addend = 0; \
5104 }
5105 #endif
5106
5107 static bfd_boolean
5108 coff_slurp_reloc_table (bfd * abfd, sec_ptr asect, asymbol ** symbols)
5109 {
5110 RELOC *native_relocs;
5111 arelent *reloc_cache;
5112 arelent *cache_ptr;
5113 unsigned int idx;
5114 bfd_size_type amt;
5115
5116 if (asect->relocation)
5117 return TRUE;
5118 if (asect->reloc_count == 0)
5119 return TRUE;
5120 if (asect->flags & SEC_CONSTRUCTOR)
5121 return TRUE;
5122 if (!coff_slurp_symbol_table (abfd))
5123 return FALSE;
5124
5125 amt = (bfd_size_type) bfd_coff_relsz (abfd) * asect->reloc_count;
5126 native_relocs = (RELOC *) buy_and_read (abfd, asect->rel_filepos, amt);
5127 amt = (bfd_size_type) asect->reloc_count * sizeof (arelent);
5128 reloc_cache = (arelent *) bfd_alloc (abfd, amt);
5129
5130 if (reloc_cache == NULL || native_relocs == NULL)
5131 return FALSE;
5132
5133 for (idx = 0; idx < asect->reloc_count; idx++)
5134 {
5135 struct internal_reloc dst;
5136 struct external_reloc *src;
5137 #ifndef RELOC_PROCESSING
5138 asymbol *ptr;
5139 #endif
5140
5141 cache_ptr = reloc_cache + idx;
5142 src = native_relocs + idx;
5143
5144 dst.r_offset = 0;
5145 coff_swap_reloc_in (abfd, src, &dst);
5146
5147 #ifdef RELOC_PROCESSING
5148 RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect);
5149 #else
5150 cache_ptr->address = dst.r_vaddr;
5151
5152 if (dst.r_symndx != -1)
5153 {
5154 if (dst.r_symndx < 0 || dst.r_symndx >= obj_conv_table_size (abfd))
5155 {
5156 (*_bfd_error_handler)
5157 (_("%B: warning: illegal symbol index %ld in relocs"),
5158 abfd, dst.r_symndx);
5159 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
5160 ptr = NULL;
5161 }
5162 else
5163 {
5164 cache_ptr->sym_ptr_ptr = (symbols
5165 + obj_convert (abfd)[dst.r_symndx]);
5166 ptr = *(cache_ptr->sym_ptr_ptr);
5167 }
5168 }
5169 else
5170 {
5171 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
5172 ptr = NULL;
5173 }
5174
5175 /* The symbols definitions that we have read in have been
5176 relocated as if their sections started at 0. But the offsets
5177 refering to the symbols in the raw data have not been
5178 modified, so we have to have a negative addend to compensate.
5179
5180 Note that symbols which used to be common must be left alone. */
5181
5182 /* Calculate any reloc addend by looking at the symbol. */
5183 CALC_ADDEND (abfd, ptr, dst, cache_ptr);
5184 (void) ptr;
5185
5186 cache_ptr->address -= asect->vma;
5187 /* !! cache_ptr->section = NULL;*/
5188
5189 /* Fill in the cache_ptr->howto field from dst.r_type. */
5190 RTYPE2HOWTO (cache_ptr, &dst);
5191 #endif /* RELOC_PROCESSING */
5192
5193 if (cache_ptr->howto == NULL)
5194 {
5195 (*_bfd_error_handler)
5196 (_("%B: illegal relocation type %d at address 0x%lx"),
5197 abfd, dst.r_type, (long) dst.r_vaddr);
5198 bfd_set_error (bfd_error_bad_value);
5199 return FALSE;
5200 }
5201 }
5202
5203 asect->relocation = reloc_cache;
5204 return TRUE;
5205 }
5206
5207 #ifndef coff_rtype_to_howto
5208 #ifdef RTYPE2HOWTO
5209
5210 /* Get the howto structure for a reloc. This is only used if the file
5211 including this one defines coff_relocate_section to be
5212 _bfd_coff_generic_relocate_section, so it is OK if it does not
5213 always work. It is the responsibility of the including file to
5214 make sure it is reasonable if it is needed. */
5215
5216 static reloc_howto_type *
5217 coff_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
5218 asection *sec ATTRIBUTE_UNUSED,
5219 struct internal_reloc *rel,
5220 struct coff_link_hash_entry *h ATTRIBUTE_UNUSED,
5221 struct internal_syment *sym ATTRIBUTE_UNUSED,
5222 bfd_vma *addendp ATTRIBUTE_UNUSED)
5223 {
5224 arelent genrel;
5225
5226 genrel.howto = NULL;
5227 RTYPE2HOWTO (&genrel, rel);
5228 return genrel.howto;
5229 }
5230
5231 #else /* ! defined (RTYPE2HOWTO) */
5232
5233 #define coff_rtype_to_howto NULL
5234
5235 #endif /* ! defined (RTYPE2HOWTO) */
5236 #endif /* ! defined (coff_rtype_to_howto) */
5237
5238 /* This is stupid. This function should be a boolean predicate. */
5239
5240 static long
5241 coff_canonicalize_reloc (bfd * abfd,
5242 sec_ptr section,
5243 arelent ** relptr,
5244 asymbol ** symbols)
5245 {
5246 arelent *tblptr = section->relocation;
5247 unsigned int count = 0;
5248
5249 if (section->flags & SEC_CONSTRUCTOR)
5250 {
5251 /* This section has relocs made up by us, they are not in the
5252 file, so take them out of their chain and place them into
5253 the data area provided. */
5254 arelent_chain *chain = section->constructor_chain;
5255
5256 for (count = 0; count < section->reloc_count; count++)
5257 {
5258 *relptr++ = &chain->relent;
5259 chain = chain->next;
5260 }
5261 }
5262 else
5263 {
5264 if (! coff_slurp_reloc_table (abfd, section, symbols))
5265 return -1;
5266
5267 tblptr = section->relocation;
5268
5269 for (; count++ < section->reloc_count;)
5270 *relptr++ = tblptr++;
5271 }
5272 *relptr = 0;
5273 return section->reloc_count;
5274 }
5275
5276 #ifndef coff_reloc16_estimate
5277 #define coff_reloc16_estimate dummy_reloc16_estimate
5278
5279 static int
5280 dummy_reloc16_estimate (bfd *abfd ATTRIBUTE_UNUSED,
5281 asection *input_section ATTRIBUTE_UNUSED,
5282 arelent *reloc ATTRIBUTE_UNUSED,
5283 unsigned int shrink ATTRIBUTE_UNUSED,
5284 struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
5285 {
5286 abort ();
5287 return 0;
5288 }
5289
5290 #endif
5291
5292 #ifndef coff_reloc16_extra_cases
5293
5294 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
5295
5296 /* This works even if abort is not declared in any header file. */
5297
5298 static void
5299 dummy_reloc16_extra_cases (bfd *abfd ATTRIBUTE_UNUSED,
5300 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
5301 struct bfd_link_order *link_order ATTRIBUTE_UNUSED,
5302 arelent *reloc ATTRIBUTE_UNUSED,
5303 bfd_byte *data ATTRIBUTE_UNUSED,
5304 unsigned int *src_ptr ATTRIBUTE_UNUSED,
5305 unsigned int *dst_ptr ATTRIBUTE_UNUSED)
5306 {
5307 abort ();
5308 }
5309 #endif
5310
5311 #ifndef coff_bfd_link_hash_table_free
5312 #define coff_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
5313 #endif
5314
5315 /* If coff_relocate_section is defined, we can use the optimized COFF
5316 backend linker. Otherwise we must continue to use the old linker. */
5317
5318 #ifdef coff_relocate_section
5319
5320 #ifndef coff_bfd_link_hash_table_create
5321 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
5322 #endif
5323 #ifndef coff_bfd_link_add_symbols
5324 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
5325 #endif
5326 #ifndef coff_bfd_final_link
5327 #define coff_bfd_final_link _bfd_coff_final_link
5328 #endif
5329
5330 #else /* ! defined (coff_relocate_section) */
5331
5332 #define coff_relocate_section NULL
5333 #ifndef coff_bfd_link_hash_table_create
5334 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
5335 #endif
5336 #ifndef coff_bfd_link_add_symbols
5337 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
5338 #endif
5339 #define coff_bfd_final_link _bfd_generic_final_link
5340
5341 #endif /* ! defined (coff_relocate_section) */
5342
5343 #define coff_bfd_link_just_syms _bfd_generic_link_just_syms
5344 #define coff_bfd_copy_link_hash_symbol_type \
5345 _bfd_generic_copy_link_hash_symbol_type
5346 #define coff_bfd_link_split_section _bfd_generic_link_split_section
5347
5348 #ifndef coff_start_final_link
5349 #define coff_start_final_link NULL
5350 #endif
5351
5352 #ifndef coff_adjust_symndx
5353 #define coff_adjust_symndx NULL
5354 #endif
5355
5356 #ifndef coff_link_add_one_symbol
5357 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
5358 #endif
5359
5360 #ifndef coff_link_output_has_begun
5361
5362 static bfd_boolean
5363 coff_link_output_has_begun (bfd * abfd,
5364 struct coff_final_link_info * info ATTRIBUTE_UNUSED)
5365 {
5366 return abfd->output_has_begun;
5367 }
5368 #endif
5369
5370 #ifndef coff_final_link_postscript
5371
5372 static bfd_boolean
5373 coff_final_link_postscript (bfd * abfd ATTRIBUTE_UNUSED,
5374 struct coff_final_link_info * pfinfo ATTRIBUTE_UNUSED)
5375 {
5376 return TRUE;
5377 }
5378 #endif
5379
5380 #ifndef coff_SWAP_aux_in
5381 #define coff_SWAP_aux_in coff_swap_aux_in
5382 #endif
5383 #ifndef coff_SWAP_sym_in
5384 #define coff_SWAP_sym_in coff_swap_sym_in
5385 #endif
5386 #ifndef coff_SWAP_lineno_in
5387 #define coff_SWAP_lineno_in coff_swap_lineno_in
5388 #endif
5389 #ifndef coff_SWAP_aux_out
5390 #define coff_SWAP_aux_out coff_swap_aux_out
5391 #endif
5392 #ifndef coff_SWAP_sym_out
5393 #define coff_SWAP_sym_out coff_swap_sym_out
5394 #endif
5395 #ifndef coff_SWAP_lineno_out
5396 #define coff_SWAP_lineno_out coff_swap_lineno_out
5397 #endif
5398 #ifndef coff_SWAP_reloc_out
5399 #define coff_SWAP_reloc_out coff_swap_reloc_out
5400 #endif
5401 #ifndef coff_SWAP_filehdr_out
5402 #define coff_SWAP_filehdr_out coff_swap_filehdr_out
5403 #endif
5404 #ifndef coff_SWAP_aouthdr_out
5405 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
5406 #endif
5407 #ifndef coff_SWAP_scnhdr_out
5408 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
5409 #endif
5410 #ifndef coff_SWAP_reloc_in
5411 #define coff_SWAP_reloc_in coff_swap_reloc_in
5412 #endif
5413 #ifndef coff_SWAP_filehdr_in
5414 #define coff_SWAP_filehdr_in coff_swap_filehdr_in
5415 #endif
5416 #ifndef coff_SWAP_aouthdr_in
5417 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
5418 #endif
5419 #ifndef coff_SWAP_scnhdr_in
5420 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
5421 #endif
5422
5423 static bfd_coff_backend_data bfd_coff_std_swap_table ATTRIBUTE_UNUSED =
5424 {
5425 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5426 coff_SWAP_aux_out, coff_SWAP_sym_out,
5427 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5428 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5429 coff_SWAP_scnhdr_out,
5430 FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN,
5431 #ifdef COFF_LONG_FILENAMES
5432 TRUE,
5433 #else
5434 FALSE,
5435 #endif
5436 COFF_DEFAULT_LONG_SECTION_NAMES,
5437 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5438 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5439 TRUE,
5440 #else
5441 FALSE,
5442 #endif
5443 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5444 4,
5445 #else
5446 2,
5447 #endif
5448 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5449 coff_SWAP_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook,
5450 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5451 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5452 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5453 coff_classify_symbol, coff_compute_section_file_positions,
5454 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5455 coff_adjust_symndx, coff_link_add_one_symbol,
5456 coff_link_output_has_begun, coff_final_link_postscript,
5457 bfd_pe_print_pdata
5458 };
5459
5460 #ifdef TICOFF
5461 /* COFF0 differs in file/section header size and relocation entry size. */
5462
5463 static bfd_coff_backend_data ticoff0_swap_table =
5464 {
5465 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5466 coff_SWAP_aux_out, coff_SWAP_sym_out,
5467 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5468 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5469 coff_SWAP_scnhdr_out,
5470 FILHSZ_V0, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ_V0, LINESZ, FILNMLEN,
5471 #ifdef COFF_LONG_FILENAMES
5472 TRUE,
5473 #else
5474 FALSE,
5475 #endif
5476 COFF_DEFAULT_LONG_SECTION_NAMES,
5477 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5478 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5479 TRUE,
5480 #else
5481 FALSE,
5482 #endif
5483 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5484 4,
5485 #else
5486 2,
5487 #endif
5488 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5489 coff_SWAP_reloc_in, ticoff0_bad_format_hook, coff_set_arch_mach_hook,
5490 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5491 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5492 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5493 coff_classify_symbol, coff_compute_section_file_positions,
5494 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5495 coff_adjust_symndx, coff_link_add_one_symbol,
5496 coff_link_output_has_begun, coff_final_link_postscript,
5497 bfd_pe_print_pdata
5498 };
5499 #endif
5500
5501 #ifdef TICOFF
5502 /* COFF1 differs in section header size. */
5503
5504 static bfd_coff_backend_data ticoff1_swap_table =
5505 {
5506 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5507 coff_SWAP_aux_out, coff_SWAP_sym_out,
5508 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5509 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5510 coff_SWAP_scnhdr_out,
5511 FILHSZ, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN,
5512 #ifdef COFF_LONG_FILENAMES
5513 TRUE,
5514 #else
5515 FALSE,
5516 #endif
5517 COFF_DEFAULT_LONG_SECTION_NAMES,
5518 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5519 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5520 TRUE,
5521 #else
5522 FALSE,
5523 #endif
5524 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5525 4,
5526 #else
5527 2,
5528 #endif
5529 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5530 coff_SWAP_reloc_in, ticoff1_bad_format_hook, coff_set_arch_mach_hook,
5531 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5532 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5533 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5534 coff_classify_symbol, coff_compute_section_file_positions,
5535 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5536 coff_adjust_symndx, coff_link_add_one_symbol,
5537 coff_link_output_has_begun, coff_final_link_postscript,
5538 bfd_pe_print_pdata /* huh */
5539 };
5540 #endif
5541
5542 #ifndef coff_close_and_cleanup
5543 #define coff_close_and_cleanup _bfd_generic_close_and_cleanup
5544 #endif
5545
5546 #ifndef coff_bfd_free_cached_info
5547 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
5548 #endif
5549
5550 #ifndef coff_get_section_contents
5551 #define coff_get_section_contents _bfd_generic_get_section_contents
5552 #endif
5553
5554 #ifndef coff_bfd_copy_private_symbol_data
5555 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
5556 #endif
5557
5558 #ifndef coff_bfd_copy_private_header_data
5559 #define coff_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
5560 #endif
5561
5562 #ifndef coff_bfd_copy_private_section_data
5563 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
5564 #endif
5565
5566 #ifndef coff_bfd_copy_private_bfd_data
5567 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
5568 #endif
5569
5570 #ifndef coff_bfd_merge_private_bfd_data
5571 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
5572 #endif
5573
5574 #ifndef coff_bfd_set_private_flags
5575 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
5576 #endif
5577
5578 #ifndef coff_bfd_print_private_bfd_data
5579 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
5580 #endif
5581
5582 #ifndef coff_bfd_is_local_label_name
5583 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
5584 #endif
5585
5586 #ifndef coff_bfd_is_target_special_symbol
5587 #define coff_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
5588 #endif
5589
5590 #ifndef coff_read_minisymbols
5591 #define coff_read_minisymbols _bfd_generic_read_minisymbols
5592 #endif
5593
5594 #ifndef coff_minisymbol_to_symbol
5595 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
5596 #endif
5597
5598 /* The reloc lookup routine must be supplied by each individual COFF
5599 backend. */
5600 #ifndef coff_bfd_reloc_type_lookup
5601 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5602 #endif
5603 #ifndef coff_bfd_reloc_name_lookup
5604 #define coff_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5605 #endif
5606
5607 #ifndef coff_bfd_get_relocated_section_contents
5608 #define coff_bfd_get_relocated_section_contents \
5609 bfd_generic_get_relocated_section_contents
5610 #endif
5611
5612 #ifndef coff_bfd_relax_section
5613 #define coff_bfd_relax_section bfd_generic_relax_section
5614 #endif
5615
5616 #ifndef coff_bfd_gc_sections
5617 #define coff_bfd_gc_sections bfd_generic_gc_sections
5618 #endif
5619
5620 #ifndef coff_bfd_merge_sections
5621 #define coff_bfd_merge_sections bfd_generic_merge_sections
5622 #endif
5623
5624 #ifndef coff_bfd_is_group_section
5625 #define coff_bfd_is_group_section bfd_generic_is_group_section
5626 #endif
5627
5628 #ifndef coff_bfd_discard_group
5629 #define coff_bfd_discard_group bfd_generic_discard_group
5630 #endif
5631
5632 #ifndef coff_section_already_linked
5633 #define coff_section_already_linked \
5634 _bfd_generic_section_already_linked
5635 #endif
5636
5637 #ifndef coff_bfd_define_common_symbol
5638 #define coff_bfd_define_common_symbol bfd_generic_define_common_symbol
5639 #endif
5640
5641 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5642 const bfd_target VAR = \
5643 { \
5644 NAME , \
5645 bfd_target_coff_flavour, \
5646 BFD_ENDIAN_BIG, /* Data byte order is big. */ \
5647 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5648 /* object flags */ \
5649 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5650 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5651 /* section flags */ \
5652 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5653 UNDER, /* Leading symbol underscore. */ \
5654 '/', /* AR_pad_char. */ \
5655 15, /* AR_max_namelen. */ \
5656 \
5657 /* Data conversion functions. */ \
5658 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5659 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5660 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5661 \
5662 /* Header conversion functions. */ \
5663 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5664 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5665 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5666 \
5667 /* bfd_check_format. */ \
5668 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5669 _bfd_dummy_target }, \
5670 /* bfd_set_format. */ \
5671 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5672 /* bfd_write_contents. */ \
5673 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5674 bfd_false }, \
5675 \
5676 BFD_JUMP_TABLE_GENERIC (coff), \
5677 BFD_JUMP_TABLE_COPY (coff), \
5678 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5679 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5680 BFD_JUMP_TABLE_SYMBOLS (coff), \
5681 BFD_JUMP_TABLE_RELOCS (coff), \
5682 BFD_JUMP_TABLE_WRITE (coff), \
5683 BFD_JUMP_TABLE_LINK (coff), \
5684 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5685 \
5686 ALTERNATIVE, \
5687 \
5688 SWAP_TABLE \
5689 };
5690
5691 #define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5692 const bfd_target VAR = \
5693 { \
5694 NAME , \
5695 bfd_target_coff_flavour, \
5696 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5697 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5698 /* object flags */ \
5699 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5700 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5701 /* section flags */ \
5702 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5703 UNDER, /* Leading symbol underscore. */ \
5704 '/', /* AR_pad_char. */ \
5705 15, /* AR_max_namelen. */ \
5706 \
5707 /* Data conversion functions. */ \
5708 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5709 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5710 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5711 \
5712 /* Header conversion functions. */ \
5713 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5714 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5715 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5716 \
5717 /* bfd_check_format. */ \
5718 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5719 _bfd_dummy_target }, \
5720 /* bfd_set_format. */ \
5721 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5722 /* bfd_write_contents. */ \
5723 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5724 bfd_false }, \
5725 \
5726 BFD_JUMP_TABLE_GENERIC (coff), \
5727 BFD_JUMP_TABLE_COPY (coff), \
5728 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5729 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5730 BFD_JUMP_TABLE_SYMBOLS (coff), \
5731 BFD_JUMP_TABLE_RELOCS (coff), \
5732 BFD_JUMP_TABLE_WRITE (coff), \
5733 BFD_JUMP_TABLE_LINK (coff), \
5734 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5735 \
5736 ALTERNATIVE, \
5737 \
5738 SWAP_TABLE \
5739 };
5740
5741 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5742 const bfd_target VAR = \
5743 { \
5744 NAME , \
5745 bfd_target_coff_flavour, \
5746 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5747 BFD_ENDIAN_LITTLE, /* Header byte order is little. */ \
5748 /* object flags */ \
5749 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5750 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5751 /* section flags */ \
5752 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5753 UNDER, /* Leading symbol underscore. */ \
5754 '/', /* AR_pad_char. */ \
5755 15, /* AR_max_namelen. */ \
5756 \
5757 /* Data conversion functions. */ \
5758 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5759 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5760 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5761 /* Header conversion functions. */ \
5762 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5763 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5764 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5765 /* bfd_check_format. */ \
5766 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5767 _bfd_dummy_target }, \
5768 /* bfd_set_format. */ \
5769 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5770 /* bfd_write_contents. */ \
5771 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5772 bfd_false }, \
5773 \
5774 BFD_JUMP_TABLE_GENERIC (coff), \
5775 BFD_JUMP_TABLE_COPY (coff), \
5776 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5777 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5778 BFD_JUMP_TABLE_SYMBOLS (coff), \
5779 BFD_JUMP_TABLE_RELOCS (coff), \
5780 BFD_JUMP_TABLE_WRITE (coff), \
5781 BFD_JUMP_TABLE_LINK (coff), \
5782 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5783 \
5784 ALTERNATIVE, \
5785 \
5786 SWAP_TABLE \
5787 };