1 /* Support for the generic parts of most COFF variants, for BFD.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004
4 Free Software Foundation, Inc.
5 Written by Cygnus Support.
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
24 Most of this hacked by Steve Chamberlain,
32 BFD supports a number of different flavours of coff format.
33 The major differences between formats are the sizes and
34 alignments of fields in structures on disk, and the occasional
37 Coff in all its varieties is implemented with a few common
38 files and a number of implementation specific files. For
39 example, The 88k bcs coff format is implemented in the file
40 @file{coff-m88k.c}. This file @code{#include}s
41 @file{coff/m88k.h} which defines the external structure of the
42 coff format for the 88k, and @file{coff/internal.h} which
43 defines the internal structure. @file{coff-m88k.c} also
44 defines the relocations used by the 88k format
47 The Intel i960 processor version of coff is implemented in
48 @file{coff-i960.c}. This file has the same structure as
49 @file{coff-m88k.c}, except that it includes @file{coff/i960.h}
50 rather than @file{coff-m88k.h}.
53 Porting to a new version of coff
55 The recommended method is to select from the existing
56 implementations the version of coff which is most like the one
57 you want to use. For example, we'll say that i386 coff is
58 the one you select, and that your coff flavour is called foo.
59 Copy @file{i386coff.c} to @file{foocoff.c}, copy
60 @file{../include/coff/i386.h} to @file{../include/coff/foo.h},
61 and add the lines to @file{targets.c} and @file{Makefile.in}
62 so that your new back end is used. Alter the shapes of the
63 structures in @file{../include/coff/foo.h} so that they match
64 what you need. You will probably also have to add
65 @code{#ifdef}s to the code in @file{coff/internal.h} and
66 @file{coffcode.h} if your version of coff is too wild.
68 You can verify that your new BFD backend works quite simply by
69 building @file{objdump} from the @file{binutils} directory,
70 and making sure that its version of what's going on and your
71 host system's idea (assuming it has the pretty standard coff
72 dump utility, usually called @code{att-dump} or just
73 @code{dump}) are the same. Then clean up your code, and send
74 what you've done to Cygnus. Then your stuff will be in the
75 next release, and you won't have to keep integrating it.
78 How the coff backend works
83 The Coff backend is split into generic routines that are
84 applicable to any Coff target and routines that are specific
85 to a particular target. The target-specific routines are
86 further split into ones which are basically the same for all
87 Coff targets except that they use the external symbol format
88 or use different values for certain constants.
90 The generic routines are in @file{coffgen.c}. These routines
91 work for any Coff target. They use some hooks into the target
92 specific code; the hooks are in a @code{bfd_coff_backend_data}
93 structure, one of which exists for each target.
95 The essentially similar target-specific routines are in
96 @file{coffcode.h}. This header file includes executable C code.
97 The various Coff targets first include the appropriate Coff
98 header file, make any special defines that are needed, and
99 then include @file{coffcode.h}.
101 Some of the Coff targets then also have additional routines in
102 the target source file itself.
104 For example, @file{coff-i960.c} includes
105 @file{coff/internal.h} and @file{coff/i960.h}. It then
106 defines a few constants, such as @code{I960}, and includes
107 @file{coffcode.h}. Since the i960 has complex relocation
108 types, @file{coff-i960.c} also includes some code to
109 manipulate the i960 relocs. This code is not in
110 @file{coffcode.h} because it would not be used by any other
116 Each flavour of coff supported in BFD has its own header file
117 describing the external layout of the structures. There is also
118 an internal description of the coff layout, in
119 @file{coff/internal.h}. A major function of the
120 coff backend is swapping the bytes and twiddling the bits to
121 translate the external form of the structures into the normal
122 internal form. This is all performed in the
123 @code{bfd_swap}_@i{thing}_@i{direction} routines. Some
124 elements are different sizes between different versions of
125 coff; it is the duty of the coff version specific include file
126 to override the definitions of various packing routines in
127 @file{coffcode.h}. E.g., the size of line number entry in coff is
128 sometimes 16 bits, and sometimes 32 bits. @code{#define}ing
129 @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the
130 correct one. No doubt, some day someone will find a version of
131 coff which has a varying field size not catered to at the
132 moment. To port BFD, that person will have to add more @code{#defines}.
133 Three of the bit twiddling routines are exported to
134 @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in}
135 and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol
136 table on its own, but uses BFD to fix things up. More of the
137 bit twiddlers are exported for @code{gas};
138 @code{coff_swap_aux_out}, @code{coff_swap_sym_out},
139 @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out},
140 @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out},
141 @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track
142 of all the symbol table and reloc drudgery itself, thereby
143 saving the internal BFD overhead, but uses BFD to swap things
144 on the way out, making cross ports much safer. Doing so also
145 allows BFD (and thus the linker) to use the same header files
146 as @code{gas}, which makes one avenue to disaster disappear.
151 The simple canonical form for symbols used by BFD is not rich
152 enough to keep all the information available in a coff symbol
153 table. The back end gets around this problem by keeping the original
154 symbol table around, "behind the scenes".
156 When a symbol table is requested (through a call to
157 @code{bfd_canonicalize_symtab}), a request gets through to
158 @code{coff_get_normalized_symtab}. This reads the symbol table from
159 the coff file and swaps all the structures inside into the
160 internal form. It also fixes up all the pointers in the table
161 (represented in the file by offsets from the first symbol in
162 the table) into physical pointers to elements in the new
163 internal table. This involves some work since the meanings of
164 fields change depending upon context: a field that is a
165 pointer to another structure in the symbol table at one moment
166 may be the size in bytes of a structure at the next. Another
167 pass is made over the table. All symbols which mark file names
168 (<<C_FILE>> symbols) are modified so that the internal
169 string points to the value in the auxent (the real filename)
170 rather than the normal text associated with the symbol
173 At this time the symbol names are moved around. Coff stores
174 all symbols less than nine characters long physically
175 within the symbol table; longer strings are kept at the end of
176 the file in the string table. This pass moves all strings
177 into memory and replaces them with pointers to the strings.
179 The symbol table is massaged once again, this time to create
180 the canonical table used by the BFD application. Each symbol
181 is inspected in turn, and a decision made (using the
182 @code{sclass} field) about the various flags to set in the
183 @code{asymbol}. @xref{Symbols}. The generated canonical table
184 shares strings with the hidden internal symbol table.
186 Any linenumbers are read from the coff file too, and attached
187 to the symbols which own the functions the linenumbers belong to.
192 Writing a symbol to a coff file which didn't come from a coff
193 file will lose any debugging information. The @code{asymbol}
194 structure remembers the BFD from which the symbol was taken, and on
195 output the back end makes sure that the same destination target as
196 source target is present.
198 When the symbols have come from a coff file then all the
199 debugging information is preserved.
201 Symbol tables are provided for writing to the back end in a
202 vector of pointers to pointers. This allows applications like
203 the linker to accumulate and output large symbol tables
204 without having to do too much byte copying.
206 This function runs through the provided symbol table and
207 patches each symbol marked as a file place holder
208 (@code{C_FILE}) to point to the next file place holder in the
209 list. It also marks each @code{offset} field in the list with
210 the offset from the first symbol of the current symbol.
212 Another function of this procedure is to turn the canonical
213 value form of BFD into the form used by coff. Internally, BFD
214 expects symbol values to be offsets from a section base; so a
215 symbol physically at 0x120, but in a section starting at
216 0x100, would have the value 0x20. Coff expects symbols to
217 contain their final value, so symbols have their values
218 changed at this point to reflect their sum with their owning
219 section. This transformation uses the
220 <<output_section>> field of the @code{asymbol}'s
221 @code{asection} @xref{Sections}.
223 o <<coff_mangle_symbols>>
225 This routine runs though the provided symbol table and uses
226 the offsets generated by the previous pass and the pointers
227 generated when the symbol table was read in to create the
228 structured hierarchy required by coff. It changes each pointer
229 to a symbol into the index into the symbol table of the asymbol.
231 o <<coff_write_symbols>>
233 This routine runs through the symbol table and patches up the
234 symbols from their internal form into the coff way, calls the
235 bit twiddlers, and writes out the table to the file.
244 The hidden information for an <<asymbol>> is described in a
245 <<combined_entry_type>>:
249 .typedef struct coff_ptr_struct
251 . {* Remembers the offset from the first symbol in the file for
252 . this symbol. Generated by coff_renumber_symbols. *}
253 . unsigned int offset;
255 . {* Should the value of this symbol be renumbered. Used for
256 . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *}
257 . unsigned int fix_value : 1;
259 . {* Should the tag field of this symbol be renumbered.
260 . Created by coff_pointerize_aux. *}
261 . unsigned int fix_tag : 1;
263 . {* Should the endidx field of this symbol be renumbered.
264 . Created by coff_pointerize_aux. *}
265 . unsigned int fix_end : 1;
267 . {* Should the x_csect.x_scnlen field be renumbered.
268 . Created by coff_pointerize_aux. *}
269 . unsigned int fix_scnlen : 1;
271 . {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the
272 . index into the line number entries. Set by coff_slurp_symbol_table. *}
273 . unsigned int fix_line : 1;
275 . {* The container for the symbol structure as read and translated
279 . union internal_auxent auxent;
280 . struct internal_syment syment;
282 .} combined_entry_type;
285 .{* Each canonical asymbol really looks like this: *}
287 .typedef struct coff_symbol_struct
289 . {* The actual symbol which the rest of BFD works with *}
292 . {* A pointer to the hidden information for this symbol *}
293 . combined_entry_type *native;
295 . {* A pointer to the linenumber information for this symbol *}
296 . struct lineno_cache_entry *lineno;
298 . {* Have the line numbers been relocated yet ? *}
299 . bfd_boolean done_lineno;
307 #include "coffswap.h"
310 #define STRING_SIZE_SIZE (4)
312 #define DOT_DEBUG ".debug"
313 #define GNU_LINKONCE_WI ".gnu.linkonce.wi."
315 static long sec_to_styp_flags
316 PARAMS ((const char *, flagword));
317 static bfd_boolean styp_to_sec_flags
318 PARAMS ((bfd *, PTR, const char *, asection *, flagword *));
319 static bfd_boolean coff_bad_format_hook
320 PARAMS ((bfd *, PTR));
321 static void coff_set_custom_section_alignment
322 PARAMS ((bfd *, asection *, const struct coff_section_alignment_entry *,
323 const unsigned int));
324 static bfd_boolean coff_new_section_hook
325 PARAMS ((bfd *, asection *));
326 static bfd_boolean coff_set_arch_mach_hook
327 PARAMS ((bfd *, PTR));
328 static bfd_boolean coff_write_relocs
329 PARAMS ((bfd *, int));
330 static bfd_boolean coff_set_flags
331 PARAMS ((bfd *, unsigned int *, unsigned short *));
332 static bfd_boolean coff_set_arch_mach
333 PARAMS ((bfd *, enum bfd_architecture, unsigned long)) ATTRIBUTE_UNUSED;
334 static bfd_boolean coff_compute_section_file_positions
336 static bfd_boolean coff_write_object_contents
337 PARAMS ((bfd *)) ATTRIBUTE_UNUSED;
338 static bfd_boolean coff_set_section_contents
339 PARAMS ((bfd *, asection *, const PTR, file_ptr, bfd_size_type));
340 static PTR buy_and_read
341 PARAMS ((bfd *, file_ptr, bfd_size_type));
342 static bfd_boolean coff_slurp_line_table
343 PARAMS ((bfd *, asection *));
344 static bfd_boolean coff_slurp_symbol_table
346 static enum coff_symbol_classification coff_classify_symbol
347 PARAMS ((bfd *, struct internal_syment *));
348 static bfd_boolean coff_slurp_reloc_table
349 PARAMS ((bfd *, asection *, asymbol **));
350 static long coff_canonicalize_reloc
351 PARAMS ((bfd *, asection *, arelent **, asymbol **));
352 #ifndef coff_mkobject_hook
353 static PTR coff_mkobject_hook
354 PARAMS ((bfd *, PTR, PTR));
357 static flagword handle_COMDAT
358 PARAMS ((bfd *, flagword, PTR, const char *, asection *));
360 #ifdef COFF_IMAGE_WITH_PE
361 static bfd_boolean coff_read_word
362 PARAMS ((bfd *, unsigned int *));
363 static unsigned int coff_compute_checksum
365 static bfd_boolean coff_apply_checksum
369 static bfd_boolean ticoff0_bad_format_hook
370 PARAMS ((bfd *, PTR ));
371 static bfd_boolean ticoff1_bad_format_hook
372 PARAMS ((bfd *, PTR ));
375 /* void warning(); */
377 /* Return a word with STYP_* (scnhdr.s_flags) flags set to represent
378 the incoming SEC_* flags. The inverse of this function is
379 styp_to_sec_flags(). NOTE: If you add to/change this routine, you
380 should probably mirror the changes in styp_to_sec_flags(). */
384 /* Macros for setting debugging flags. */
386 #define STYP_XCOFF_DEBUG STYP_DEBUG
388 #define STYP_XCOFF_DEBUG STYP_INFO
391 #ifdef COFF_ALIGN_IN_S_FLAGS
392 #define STYP_DEBUG_INFO STYP_DSECT
394 #define STYP_DEBUG_INFO STYP_INFO
398 sec_to_styp_flags (sec_name, sec_flags)
399 const char *sec_name;
404 if (!strcmp (sec_name, _TEXT))
406 styp_flags = STYP_TEXT;
408 else if (!strcmp (sec_name, _DATA))
410 styp_flags = STYP_DATA;
412 else if (!strcmp (sec_name, _BSS))
414 styp_flags = STYP_BSS;
417 else if (!strcmp (sec_name, _COMMENT))
419 styp_flags = STYP_INFO;
420 #endif /* _COMMENT */
423 else if (!strcmp (sec_name, _LIB))
425 styp_flags = STYP_LIB;
429 else if (!strcmp (sec_name, _LIT))
431 styp_flags = STYP_LIT;
434 else if (!strncmp (sec_name, DOT_DEBUG, sizeof (DOT_DEBUG) - 1))
436 /* Handle the XCOFF debug section and DWARF2 debug sections. */
438 styp_flags = STYP_XCOFF_DEBUG;
440 styp_flags = STYP_DEBUG_INFO;
442 else if (!strncmp (sec_name, ".stab", 5))
444 styp_flags = STYP_DEBUG_INFO;
446 #ifdef COFF_LONG_SECTION_NAMES
447 else if (!strncmp (sec_name, GNU_LINKONCE_WI, sizeof (GNU_LINKONCE_WI) - 1))
449 styp_flags = STYP_DEBUG_INFO;
453 else if (!strcmp (sec_name, _PAD))
455 styp_flags = STYP_PAD;
457 else if (!strcmp (sec_name, _LOADER))
459 styp_flags = STYP_LOADER;
461 else if (!strcmp (sec_name, _EXCEPT))
463 styp_flags = STYP_EXCEPT;
465 else if (!strcmp (sec_name, _TYPCHK))
467 styp_flags = STYP_TYPCHK;
470 /* Try and figure out what it should be */
471 else if (sec_flags & SEC_CODE)
473 styp_flags = STYP_TEXT;
475 else if (sec_flags & SEC_DATA)
477 styp_flags = STYP_DATA;
479 else if (sec_flags & SEC_READONLY)
481 #ifdef STYP_LIT /* 29k readonly text/data section */
482 styp_flags = STYP_LIT;
484 styp_flags = STYP_TEXT;
485 #endif /* STYP_LIT */
487 else if (sec_flags & SEC_LOAD)
489 styp_flags = STYP_TEXT;
491 else if (sec_flags & SEC_ALLOC)
493 styp_flags = STYP_BSS;
497 if (sec_flags & SEC_CLINK)
498 styp_flags |= STYP_CLINK;
502 if (sec_flags & SEC_BLOCK)
503 styp_flags |= STYP_BLOCK;
507 if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0)
508 styp_flags |= STYP_NOLOAD;
514 #else /* COFF_WITH_PE */
516 /* The PE version; see above for the general comments. The non-PE
517 case seems to be more guessing, and breaks PE format; specifically,
518 .rdata is readonly, but it sure ain't text. Really, all this
519 should be set up properly in gas (or whatever assembler is in use),
520 and honor whatever objcopy/strip, etc. sent us as input. */
523 sec_to_styp_flags (sec_name, sec_flags)
524 const char *sec_name;
529 /* caution: there are at least three groups of symbols that have
530 very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*.
531 SEC_* are the BFD internal flags, used for generic BFD
532 information. STYP_* are the COFF section flags which appear in
533 COFF files. IMAGE_SCN_* are the PE section flags which appear in
534 PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap,
535 but there are more IMAGE_SCN_* flags. */
537 /* FIXME: There is no gas syntax to specify the debug section flag. */
538 if (strncmp (sec_name, DOT_DEBUG, sizeof (DOT_DEBUG) - 1) == 0
539 || strncmp (sec_name, GNU_LINKONCE_WI, sizeof (GNU_LINKONCE_WI) - 1) == 0)
540 sec_flags = SEC_READONLY | SEC_DEBUGGING;
545 if ((sec_flags & SEC_CODE) != 0)
546 styp_flags |= IMAGE_SCN_CNT_CODE;
547 if ((sec_flags & SEC_DATA) != 0)
548 styp_flags |= IMAGE_SCN_CNT_INITIALIZED_DATA;
549 if ((sec_flags & SEC_ALLOC) != 0 && (sec_flags & SEC_LOAD) == 0)
550 styp_flags |= IMAGE_SCN_CNT_UNINITIALIZED_DATA; /* ==STYP_BSS */
552 /* skip constRUCTOR */
555 if ((sec_flags & (SEC_NEVER_LOAD | SEC_COFF_SHARED_LIBRARY)) != 0)
556 styp_flags |= STYP_NOLOAD;
558 if ((sec_flags & SEC_IS_COMMON) != 0)
559 styp_flags |= IMAGE_SCN_LNK_COMDAT;
560 if ((sec_flags & SEC_DEBUGGING) != 0)
561 styp_flags |= IMAGE_SCN_MEM_DISCARDABLE;
562 if ((sec_flags & SEC_EXCLUDE) != 0)
563 styp_flags |= IMAGE_SCN_LNK_REMOVE;
564 if ((sec_flags & SEC_NEVER_LOAD) != 0)
565 styp_flags |= IMAGE_SCN_LNK_REMOVE;
568 if (sec_flags & SEC_LINK_ONCE)
569 styp_flags |= IMAGE_SCN_LNK_COMDAT;
570 /* skip LINK_DUPLICATES */
571 /* skip LINKER_CREATED */
573 /* For now, the read/write bits are mapped onto SEC_READONLY, even
574 though the semantics don't quite match. The bits from the input
575 are retained in pei_section_data(abfd, section)->pe_flags. */
577 styp_flags |= IMAGE_SCN_MEM_READ; /* Always readable. */
578 if ((sec_flags & SEC_READONLY) == 0)
579 styp_flags |= IMAGE_SCN_MEM_WRITE; /* Invert READONLY for write. */
580 if (sec_flags & SEC_CODE)
581 styp_flags |= IMAGE_SCN_MEM_EXECUTE; /* CODE->EXECUTE. */
582 if (sec_flags & SEC_SHARED)
583 styp_flags |= IMAGE_SCN_MEM_SHARED; /* Shared remains meaningful. */
588 #endif /* COFF_WITH_PE */
590 /* Return a word with SEC_* flags set to represent the incoming STYP_*
591 flags (from scnhdr.s_flags). The inverse of this function is
592 sec_to_styp_flags(). NOTE: If you add to/change this routine, you
593 should probably mirror the changes in sec_to_styp_flags(). */
598 styp_to_sec_flags (abfd, hdr, name, section, flags_ptr)
599 bfd *abfd ATTRIBUTE_UNUSED;
602 asection *section ATTRIBUTE_UNUSED;
605 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
606 long styp_flags = internal_s->s_flags;
607 flagword sec_flags = 0;
610 if (styp_flags & STYP_BLOCK)
611 sec_flags |= SEC_BLOCK;
615 if (styp_flags & STYP_CLINK)
616 sec_flags |= SEC_CLINK;
620 if (styp_flags & STYP_NOLOAD)
621 sec_flags |= SEC_NEVER_LOAD;
622 #endif /* STYP_NOLOAD */
624 /* For 386 COFF, at least, an unloadable text or data section is
625 actually a shared library section. */
626 if (styp_flags & STYP_TEXT)
628 if (sec_flags & SEC_NEVER_LOAD)
629 sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY;
631 sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
633 else if (styp_flags & STYP_DATA)
635 if (sec_flags & SEC_NEVER_LOAD)
636 sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
638 sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
640 else if (styp_flags & STYP_BSS)
642 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
643 if (sec_flags & SEC_NEVER_LOAD)
644 sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY;
647 sec_flags |= SEC_ALLOC;
649 else if (styp_flags & STYP_INFO)
651 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
652 defined. coff_compute_section_file_positions uses
653 COFF_PAGE_SIZE to ensure that the low order bits of the
654 section VMA and the file offset match. If we don't know
655 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
656 and demand page loading of the file will fail. */
657 #if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS)
658 sec_flags |= SEC_DEBUGGING;
661 else if (styp_flags & STYP_PAD)
663 else if (strcmp (name, _TEXT) == 0)
665 if (sec_flags & SEC_NEVER_LOAD)
666 sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY;
668 sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
670 else if (strcmp (name, _DATA) == 0)
672 if (sec_flags & SEC_NEVER_LOAD)
673 sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
675 sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
677 else if (strcmp (name, _BSS) == 0)
679 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
680 if (sec_flags & SEC_NEVER_LOAD)
681 sec_flags |= SEC_ALLOC | SEC_COFF_SHARED_LIBRARY;
684 sec_flags |= SEC_ALLOC;
686 else if (strncmp (name, DOT_DEBUG, sizeof (DOT_DEBUG) - 1) == 0
688 || strcmp (name, _COMMENT) == 0
690 #ifdef COFF_LONG_SECTION_NAMES
691 || strncmp (name, GNU_LINKONCE_WI, sizeof (GNU_LINKONCE_WI) - 1) == 0
693 || strncmp (name, ".stab", 5) == 0)
695 #ifdef COFF_PAGE_SIZE
696 sec_flags |= SEC_DEBUGGING;
700 else if (strcmp (name, _LIB) == 0)
704 else if (strcmp (name, _LIT) == 0)
705 sec_flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY;
708 sec_flags |= SEC_ALLOC | SEC_LOAD;
710 #ifdef STYP_LIT /* A29k readonly text/data section type. */
711 if ((styp_flags & STYP_LIT) == STYP_LIT)
712 sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY);
713 #endif /* STYP_LIT */
715 #ifdef STYP_OTHER_LOAD /* Other loaded sections. */
716 if (styp_flags & STYP_OTHER_LOAD)
717 sec_flags = (SEC_LOAD | SEC_ALLOC);
718 #endif /* STYP_SDATA */
720 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
721 /* As a GNU extension, if the name begins with .gnu.linkonce, we
722 only link a single copy of the section. This is used to support
723 g++. g++ will emit each template expansion in its own section.
724 The symbols will be defined as weak, so that multiple definitions
725 are permitted. The GNU linker extension is to actually discard
726 all but one of the sections. */
727 if (strncmp (name, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0)
728 sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
731 if (flags_ptr == NULL)
734 * flags_ptr = sec_flags;
738 #else /* COFF_WITH_PE */
741 handle_COMDAT (abfd, sec_flags, hdr, name, section)
748 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
749 bfd_byte *esymstart, *esym, *esymend;
751 char *target_name = NULL;
753 sec_flags |= SEC_LINK_ONCE;
755 /* Unfortunately, the PE format stores essential information in
756 the symbol table, of all places. We need to extract that
757 information now, so that objdump and the linker will know how
758 to handle the section without worrying about the symbols. We
759 can't call slurp_symtab, because the linker doesn't want the
762 /* COMDAT sections are special. The first symbol is the section
763 symbol, which tells what kind of COMDAT section it is. The
764 second symbol is the "comdat symbol" - the one with the
765 unique name. GNU uses the section symbol for the unique
766 name; MS uses ".text" for every comdat section. Sigh. - DJ */
768 /* This is not mirrored in sec_to_styp_flags(), but there
769 doesn't seem to be a need to, either, and it would at best be
772 if (! _bfd_coff_get_external_symbols (abfd))
775 esymstart = esym = (bfd_byte *) obj_coff_external_syms (abfd);
776 esymend = esym + obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd);
778 while (esym < esymend)
780 struct internal_syment isym;
781 char buf[SYMNMLEN + 1];
784 bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &isym);
786 if (sizeof (internal_s->s_name) > SYMNMLEN)
788 /* This case implies that the matching
789 symbol name will be in the string table. */
793 if (isym.n_scnum == section->target_index)
795 /* According to the MSVC documentation, the first
796 TWO entries with the section # are both of
797 interest to us. The first one is the "section
798 symbol" (section name). The second is the comdat
799 symbol name. Here, we've found the first
800 qualifying entry; we distinguish it from the
801 second with a state flag.
803 In the case of gas-generated (at least until that
804 is fixed) .o files, it isn't necessarily the
805 second one. It may be some other later symbol.
807 Since gas also doesn't follow MS conventions and
808 emits the section similar to .text$<name>, where
809 <something> is the name we're looking for, we
810 distinguish the two as follows:
812 If the section name is simply a section name (no
813 $) we presume it's MS-generated, and look at
814 precisely the second symbol for the comdat name.
815 If the section name has a $, we assume it's
816 gas-generated, and look for <something> (whatever
817 follows the $) as the comdat symbol. */
819 /* All 3 branches use this. */
820 symname = _bfd_coff_internal_syment_name (abfd, &isym, buf);
829 /* The first time we've seen the symbol. */
830 union internal_auxent aux;
832 /* If it isn't the stuff we're expecting, die;
833 The MS documentation is vague, but it
834 appears that the second entry serves BOTH
835 as the comdat symbol and the defining
836 symbol record (either C_STAT or C_EXT,
837 possibly with an aux entry with debug
838 information if it's a function.) It
839 appears the only way to find the second one
840 is to count. (On Intel, they appear to be
841 adjacent, but on Alpha, they have been
844 Here, we think we've found the first one,
845 but there's some checking we can do to be
848 if (! (isym.n_sclass == C_STAT
849 && isym.n_type == T_NULL
850 && isym.n_value == 0))
853 /* FIXME LATER: MSVC generates section names
854 like .text for comdats. Gas generates
855 names like .text$foo__Fv (in the case of a
856 function). See comment above for more. */
858 if (strcmp (name, symname) != 0)
859 _bfd_error_handler (_("%B: warning: COMDAT symbol '%s' does not match section name '%s'"),
860 abfd, symname, name);
864 /* This is the section symbol. */
865 bfd_coff_swap_aux_in (abfd, (PTR) (esym + bfd_coff_symesz (abfd)),
866 isym.n_type, isym.n_sclass,
867 0, isym.n_numaux, (PTR) &aux);
869 target_name = strchr (name, '$');
870 if (target_name != NULL)
878 /* FIXME: Microsoft uses NODUPLICATES and
879 ASSOCIATIVE, but gnu uses ANY and
880 SAME_SIZE. Unfortunately, gnu doesn't do
881 the comdat symbols right. So, until we can
882 fix it to do the right thing, we are
883 temporarily disabling comdats for the MS
884 types (they're used in DLLs and C++, but we
885 don't support *their* C++ libraries anyway
888 /* Cygwin does not follow the MS style, and
889 uses ANY and SAME_SIZE where NODUPLICATES
890 and ASSOCIATIVE should be used. For
891 Interix, we just do the right thing up
894 switch (aux.x_scn.x_comdat)
896 case IMAGE_COMDAT_SELECT_NODUPLICATES:
897 #ifdef STRICT_PE_FORMAT
898 sec_flags |= SEC_LINK_DUPLICATES_ONE_ONLY;
900 sec_flags &= ~SEC_LINK_ONCE;
904 case IMAGE_COMDAT_SELECT_ANY:
905 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
908 case IMAGE_COMDAT_SELECT_SAME_SIZE:
909 sec_flags |= SEC_LINK_DUPLICATES_SAME_SIZE;
912 case IMAGE_COMDAT_SELECT_EXACT_MATCH:
913 /* Not yet fully implemented ??? */
914 sec_flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS;
917 /* debug$S gets this case; other
920 /* There may be no symbol... we'll search
921 the whole table... Is this the right
922 place to play this game? Or should we do
923 it when reading it in. */
924 case IMAGE_COMDAT_SELECT_ASSOCIATIVE:
925 #ifdef STRICT_PE_FORMAT
926 /* FIXME: This is not currently implemented. */
927 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
929 sec_flags &= ~SEC_LINK_ONCE;
933 default: /* 0 means "no symbol" */
934 /* debug$F gets this case; other
936 sec_flags |= SEC_LINK_DUPLICATES_DISCARD;
943 /* Gas mode: the first matching on partial name. */
945 #ifndef TARGET_UNDERSCORE
946 #define TARGET_UNDERSCORE 0
948 /* Is this the name we're looking for ? */
949 if (strcmp (target_name,
950 symname + (TARGET_UNDERSCORE ? 1 : 0)) != 0)
952 /* Not the name we're looking for */
953 esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd);
958 /* MSVC mode: the lexically second symbol (or
959 drop through from the above). */
964 /* This must the second symbol with the
965 section #. It is the actual symbol name.
966 Intel puts the two adjacent, but Alpha (at
967 least) spreads them out. */
969 amt = sizeof (struct coff_comdat_info);
970 coff_section_data (abfd, section)->comdat
971 = bfd_alloc (abfd, amt);
972 if (coff_section_data (abfd, section)->comdat == NULL)
975 coff_section_data (abfd, section)->comdat->symbol =
976 (esym - esymstart) / bfd_coff_symesz (abfd);
978 amt = strlen (symname) + 1;
979 newname = bfd_alloc (abfd, amt);
983 strcpy (newname, symname);
984 coff_section_data (abfd, section)->comdat->name
992 esym += (isym.n_numaux + 1) * bfd_coff_symesz (abfd);
1000 /* The PE version; see above for the general comments.
1002 Since to set the SEC_LINK_ONCE and associated flags, we have to
1003 look at the symbol table anyway, we return the symbol table index
1004 of the symbol being used as the COMDAT symbol. This is admittedly
1005 ugly, but there's really nowhere else that we have access to the
1006 required information. FIXME: Is the COMDAT symbol index used for
1007 any purpose other than objdump? */
1010 styp_to_sec_flags (abfd, hdr, name, section, flags_ptr)
1015 flagword *flags_ptr;
1017 struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
1018 long styp_flags = internal_s->s_flags;
1020 bfd_boolean result = TRUE;
1022 /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */
1023 sec_flags = SEC_READONLY;
1025 /* Process each flag bit in styp_flags in turn. */
1028 long flag = styp_flags & - styp_flags;
1029 char * unhandled = NULL;
1031 styp_flags &= ~ flag;
1033 /* We infer from the distinct read/write/execute bits the settings
1034 of some of the bfd flags; the actual values, should we need them,
1035 are also in pei_section_data (abfd, section)->pe_flags. */
1040 unhandled = "STYP_DSECT";
1043 unhandled = "STYP_GROUP";
1046 unhandled = "STYP_COPY";
1049 unhandled = "STYP_OVER";
1051 #ifdef SEC_NEVER_LOAD
1053 sec_flags |= SEC_NEVER_LOAD;
1056 case IMAGE_SCN_MEM_READ:
1057 /* Ignored, assume it always to be true. */
1059 case IMAGE_SCN_TYPE_NO_PAD:
1062 case IMAGE_SCN_LNK_OTHER:
1063 unhandled = "IMAGE_SCN_LNK_OTHER";
1065 case IMAGE_SCN_MEM_NOT_CACHED:
1066 unhandled = "IMAGE_SCN_MEM_NOT_CACHED";
1068 case IMAGE_SCN_MEM_NOT_PAGED:
1070 unhandled = "IMAGE_SCN_MEM_NOT_PAGED";
1072 /* Generate a warning message rather using the 'unhandled'
1073 variable as this will allow some .sys files generate by
1074 other toolchains to be processed. See bugzilla issue 196. */
1075 _bfd_error_handler (_("%B: Warning: Ignoring section flag IMAGE_SCN_MEM_NOT_PAGED in section %s"),
1079 case IMAGE_SCN_MEM_EXECUTE:
1080 sec_flags |= SEC_CODE;
1082 case IMAGE_SCN_MEM_WRITE:
1083 sec_flags &= ~ SEC_READONLY;
1085 case IMAGE_SCN_MEM_DISCARDABLE:
1086 /* The MS PE spec sets the DISCARDABLE flag on .reloc sections
1087 but we do not want them to be labelled as debug section, since
1088 then strip would remove them. */
1089 if (strncmp (name, ".reloc", sizeof ".reloc" - 1) != 0)
1090 sec_flags |= SEC_DEBUGGING;
1092 case IMAGE_SCN_MEM_SHARED:
1093 sec_flags |= SEC_SHARED;
1095 case IMAGE_SCN_LNK_REMOVE:
1096 sec_flags |= SEC_EXCLUDE;
1098 case IMAGE_SCN_CNT_CODE:
1099 sec_flags |= SEC_CODE | SEC_ALLOC | SEC_LOAD;
1101 case IMAGE_SCN_CNT_INITIALIZED_DATA:
1102 sec_flags |= SEC_DATA | SEC_ALLOC | SEC_LOAD;
1104 case IMAGE_SCN_CNT_UNINITIALIZED_DATA:
1105 sec_flags |= SEC_ALLOC;
1107 case IMAGE_SCN_LNK_INFO:
1108 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
1109 defined. coff_compute_section_file_positions uses
1110 COFF_PAGE_SIZE to ensure that the low order bits of the
1111 section VMA and the file offset match. If we don't know
1112 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
1113 and demand page loading of the file will fail. */
1114 #ifdef COFF_PAGE_SIZE
1115 sec_flags |= SEC_DEBUGGING;
1118 case IMAGE_SCN_LNK_COMDAT:
1119 /* COMDAT gets very special treatment. */
1120 sec_flags = handle_COMDAT (abfd, sec_flags, hdr, name, section);
1123 /* Silently ignore for now. */
1127 /* If the section flag was not handled, report it here. */
1128 if (unhandled != NULL)
1130 (*_bfd_error_handler)
1131 (_("%B (%s): Section flag %s (0x%x) ignored"),
1132 abfd, name, unhandled, flag);
1137 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
1138 /* As a GNU extension, if the name begins with .gnu.linkonce, we
1139 only link a single copy of the section. This is used to support
1140 g++. g++ will emit each template expansion in its own section.
1141 The symbols will be defined as weak, so that multiple definitions
1142 are permitted. The GNU linker extension is to actually discard
1143 all but one of the sections. */
1144 if (strncmp (name, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0)
1145 sec_flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
1149 * flags_ptr = sec_flags;
1154 #endif /* COFF_WITH_PE */
1156 #define get_index(symbol) ((symbol)->udata.i)
1160 bfd_coff_backend_data
1164 .{* COFF symbol classifications. *}
1166 .enum coff_symbol_classification
1168 . {* Global symbol. *}
1169 . COFF_SYMBOL_GLOBAL,
1170 . {* Common symbol. *}
1171 . COFF_SYMBOL_COMMON,
1172 . {* Undefined symbol. *}
1173 . COFF_SYMBOL_UNDEFINED,
1174 . {* Local symbol. *}
1175 . COFF_SYMBOL_LOCAL,
1176 . {* PE section symbol. *}
1177 . COFF_SYMBOL_PE_SECTION
1180 Special entry points for gdb to swap in coff symbol table parts:
1183 . void (*_bfd_coff_swap_aux_in)
1184 . PARAMS ((bfd *, PTR, int, int, int, int, PTR));
1186 . void (*_bfd_coff_swap_sym_in)
1187 . PARAMS ((bfd *, PTR, PTR));
1189 . void (*_bfd_coff_swap_lineno_in)
1190 . PARAMS ((bfd *, PTR, PTR));
1192 . unsigned int (*_bfd_coff_swap_aux_out)
1193 . PARAMS ((bfd *, PTR, int, int, int, int, PTR));
1195 . unsigned int (*_bfd_coff_swap_sym_out)
1196 . PARAMS ((bfd *, PTR, PTR));
1198 . unsigned int (*_bfd_coff_swap_lineno_out)
1199 . PARAMS ((bfd *, PTR, PTR));
1201 . unsigned int (*_bfd_coff_swap_reloc_out)
1202 . PARAMS ((bfd *, PTR, PTR));
1204 . unsigned int (*_bfd_coff_swap_filehdr_out)
1205 . PARAMS ((bfd *, PTR, PTR));
1207 . unsigned int (*_bfd_coff_swap_aouthdr_out)
1208 . PARAMS ((bfd *, PTR, PTR));
1210 . unsigned int (*_bfd_coff_swap_scnhdr_out)
1211 . PARAMS ((bfd *, PTR, PTR));
1213 . unsigned int _bfd_filhsz;
1214 . unsigned int _bfd_aoutsz;
1215 . unsigned int _bfd_scnhsz;
1216 . unsigned int _bfd_symesz;
1217 . unsigned int _bfd_auxesz;
1218 . unsigned int _bfd_relsz;
1219 . unsigned int _bfd_linesz;
1220 . unsigned int _bfd_filnmlen;
1221 . bfd_boolean _bfd_coff_long_filenames;
1222 . bfd_boolean _bfd_coff_long_section_names;
1223 . unsigned int _bfd_coff_default_section_alignment_power;
1224 . bfd_boolean _bfd_coff_force_symnames_in_strings;
1225 . unsigned int _bfd_coff_debug_string_prefix_length;
1227 . void (*_bfd_coff_swap_filehdr_in)
1228 . PARAMS ((bfd *, PTR, PTR));
1230 . void (*_bfd_coff_swap_aouthdr_in)
1231 . PARAMS ((bfd *, PTR, PTR));
1233 . void (*_bfd_coff_swap_scnhdr_in)
1234 . PARAMS ((bfd *, PTR, PTR));
1236 . void (*_bfd_coff_swap_reloc_in)
1237 . PARAMS ((bfd *abfd, PTR, PTR));
1239 . bfd_boolean (*_bfd_coff_bad_format_hook)
1240 . PARAMS ((bfd *, PTR));
1242 . bfd_boolean (*_bfd_coff_set_arch_mach_hook)
1243 . PARAMS ((bfd *, PTR));
1245 . PTR (*_bfd_coff_mkobject_hook)
1246 . PARAMS ((bfd *, PTR, PTR));
1248 . bfd_boolean (*_bfd_styp_to_sec_flags_hook)
1249 . PARAMS ((bfd *, PTR, const char *, asection *, flagword *));
1251 . void (*_bfd_set_alignment_hook)
1252 . PARAMS ((bfd *, asection *, PTR));
1254 . bfd_boolean (*_bfd_coff_slurp_symbol_table)
1257 . bfd_boolean (*_bfd_coff_symname_in_debug)
1258 . PARAMS ((bfd *, struct internal_syment *));
1260 . bfd_boolean (*_bfd_coff_pointerize_aux_hook)
1261 . PARAMS ((bfd *, combined_entry_type *, combined_entry_type *,
1262 . unsigned int, combined_entry_type *));
1264 . bfd_boolean (*_bfd_coff_print_aux)
1265 . PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *,
1266 . combined_entry_type *, unsigned int));
1268 . void (*_bfd_coff_reloc16_extra_cases)
1269 . PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
1270 . bfd_byte *, unsigned int *, unsigned int *));
1272 . int (*_bfd_coff_reloc16_estimate)
1273 . PARAMS ((bfd *, asection *, arelent *, unsigned int,
1274 . struct bfd_link_info *));
1276 . enum coff_symbol_classification (*_bfd_coff_classify_symbol)
1277 . PARAMS ((bfd *, struct internal_syment *));
1279 . bfd_boolean (*_bfd_coff_compute_section_file_positions)
1282 . bfd_boolean (*_bfd_coff_start_final_link)
1283 . PARAMS ((bfd *, struct bfd_link_info *));
1285 . bfd_boolean (*_bfd_coff_relocate_section)
1286 . PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
1287 . struct internal_reloc *, struct internal_syment *, asection **));
1289 . reloc_howto_type *(*_bfd_coff_rtype_to_howto)
1290 . PARAMS ((bfd *, asection *, struct internal_reloc *,
1291 . struct coff_link_hash_entry *, struct internal_syment *,
1294 . bfd_boolean (*_bfd_coff_adjust_symndx)
1295 . PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *,
1296 . struct internal_reloc *, bfd_boolean *));
1298 . bfd_boolean (*_bfd_coff_link_add_one_symbol)
1299 . PARAMS ((struct bfd_link_info *, bfd *, const char *, flagword,
1300 . asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
1301 . struct bfd_link_hash_entry **));
1303 . bfd_boolean (*_bfd_coff_link_output_has_begun)
1304 . PARAMS ((bfd *, struct coff_final_link_info *));
1306 . bfd_boolean (*_bfd_coff_final_link_postscript)
1307 . PARAMS ((bfd *, struct coff_final_link_info *));
1309 .} bfd_coff_backend_data;
1311 .#define coff_backend_info(abfd) \
1312 . ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
1314 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
1315 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
1317 .#define bfd_coff_swap_sym_in(a,e,i) \
1318 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
1320 .#define bfd_coff_swap_lineno_in(a,e,i) \
1321 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
1323 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
1324 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
1326 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
1327 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
1329 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
1330 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
1332 .#define bfd_coff_swap_sym_out(abfd, i,o) \
1333 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
1335 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
1336 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
1338 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
1339 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
1341 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
1342 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
1344 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1345 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1346 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1347 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1348 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1349 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1350 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
1351 .#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
1352 .#define bfd_coff_long_filenames(abfd) \
1353 . (coff_backend_info (abfd)->_bfd_coff_long_filenames)
1354 .#define bfd_coff_long_section_names(abfd) \
1355 . (coff_backend_info (abfd)->_bfd_coff_long_section_names)
1356 .#define bfd_coff_default_section_alignment_power(abfd) \
1357 . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
1358 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
1359 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
1361 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
1362 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
1364 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
1365 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
1367 .#define bfd_coff_swap_reloc_in(abfd, i, o) \
1368 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
1370 .#define bfd_coff_bad_format_hook(abfd, filehdr) \
1371 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
1373 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
1374 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
1375 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
1376 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\
1377 . (abfd, filehdr, aouthdr))
1379 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
1380 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1381 . (abfd, scnhdr, name, section, flags_ptr))
1383 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
1384 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
1386 .#define bfd_coff_slurp_symbol_table(abfd)\
1387 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
1389 .#define bfd_coff_symname_in_debug(abfd, sym)\
1390 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
1392 .#define bfd_coff_force_symnames_in_strings(abfd)\
1393 . (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
1395 .#define bfd_coff_debug_string_prefix_length(abfd)\
1396 . (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
1398 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
1399 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1400 . (abfd, file, base, symbol, aux, indaux))
1402 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\
1403 . reloc, data, src_ptr, dst_ptr)\
1404 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1405 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
1407 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
1408 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1409 . (abfd, section, reloc, shrink, link_info))
1411 .#define bfd_coff_classify_symbol(abfd, sym)\
1412 . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1415 .#define bfd_coff_compute_section_file_positions(abfd)\
1416 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1419 .#define bfd_coff_start_final_link(obfd, info)\
1420 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1422 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
1423 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1424 . (obfd, info, ibfd, o, con, rel, isyms, secs))
1425 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
1426 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1427 . (abfd, sec, rel, h, sym, addendp))
1428 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
1429 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1430 . (obfd, info, ibfd, sec, rel, adjustedp))
1431 .#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\
1432 . value, string, cp, coll, hashp)\
1433 . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1434 . (info, abfd, name, flags, section, value, string, cp, coll, hashp))
1436 .#define bfd_coff_link_output_has_begun(a,p) \
1437 . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a,p))
1438 .#define bfd_coff_final_link_postscript(a,p) \
1439 . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a,p))
1443 /* See whether the magic number matches. */
1446 coff_bad_format_hook (abfd, filehdr)
1447 bfd * abfd ATTRIBUTE_UNUSED;
1450 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1452 if (BADMAG (*internal_f))
1455 /* If the optional header is NULL or not the correct size then
1456 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1457 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1458 optional header is of a different size.
1460 But the mips keeps extra stuff in it's opthdr, so dont check
1463 #if defined(M88) || defined(I960)
1464 if (internal_f->f_opthdr != 0 && bfd_coff_aoutsz (abfd) != internal_f->f_opthdr)
1473 ticoff0_bad_format_hook (abfd, filehdr)
1474 bfd *abfd ATTRIBUTE_UNUSED;
1477 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1479 if (COFF0_BADMAG (*internal_f))
1488 ticoff1_bad_format_hook (abfd, filehdr)
1489 bfd *abfd ATTRIBUTE_UNUSED;
1492 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1494 if (COFF1_BADMAG (*internal_f))
1501 /* Check whether this section uses an alignment other than the
1505 coff_set_custom_section_alignment (abfd, section, alignment_table, table_size)
1506 bfd *abfd ATTRIBUTE_UNUSED;
1508 const struct coff_section_alignment_entry *alignment_table;
1509 const unsigned int table_size;
1511 const unsigned int default_alignment = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
1514 for (i = 0; i < table_size; ++i)
1516 const char *secname = bfd_get_section_name (abfd, section);
1518 if (alignment_table[i].comparison_length == (unsigned int) -1
1519 ? strcmp (alignment_table[i].name, secname) == 0
1520 : strncmp (alignment_table[i].name, secname,
1521 alignment_table[i].comparison_length) == 0)
1524 if (i >= table_size)
1527 if (alignment_table[i].default_alignment_min != COFF_ALIGNMENT_FIELD_EMPTY
1528 && default_alignment < alignment_table[i].default_alignment_min)
1531 if (alignment_table[i].default_alignment_max != COFF_ALIGNMENT_FIELD_EMPTY
1532 #if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0
1533 && default_alignment > alignment_table[i].default_alignment_max
1538 section->alignment_power = alignment_table[i].alignment_power;
1541 /* Custom section alignment records. */
1543 static const struct coff_section_alignment_entry
1544 coff_section_alignment_table[] =
1546 #ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1547 COFF_SECTION_ALIGNMENT_ENTRIES,
1549 /* There must not be any gaps between .stabstr sections. */
1550 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1551 1, COFF_ALIGNMENT_FIELD_EMPTY, 0 },
1552 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1553 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1554 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 },
1555 /* Similarly for the .ctors and .dtors sections. */
1556 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1557 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 },
1558 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1559 3, COFF_ALIGNMENT_FIELD_EMPTY, 2 }
1562 static const unsigned int coff_section_alignment_table_size =
1563 sizeof coff_section_alignment_table / sizeof coff_section_alignment_table[0];
1565 /* Initialize a section structure with information peculiar to this
1566 particular implementation of COFF. */
1569 coff_new_section_hook (abfd, section)
1573 combined_entry_type *native;
1576 section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
1579 if (bfd_xcoff_text_align_power (abfd) != 0
1580 && strcmp (bfd_get_section_name (abfd, section), ".text") == 0)
1581 section->alignment_power = bfd_xcoff_text_align_power (abfd);
1582 if (bfd_xcoff_data_align_power (abfd) != 0
1583 && strcmp (bfd_get_section_name (abfd, section), ".data") == 0)
1584 section->alignment_power = bfd_xcoff_data_align_power (abfd);
1587 /* Allocate aux records for section symbols, to store size and
1590 @@ The 10 is a guess at a plausible maximum number of aux entries
1591 (but shouldn't be a constant). */
1592 amt = sizeof (combined_entry_type) * 10;
1593 native = (combined_entry_type *) bfd_zalloc (abfd, amt);
1597 /* We don't need to set up n_name, n_value, or n_scnum in the native
1598 symbol information, since they'll be overridden by the BFD symbol
1599 anyhow. However, we do need to set the type and storage class,
1600 in case this symbol winds up getting written out. The value 0
1601 for n_numaux is already correct. */
1603 native->u.syment.n_type = T_NULL;
1604 native->u.syment.n_sclass = C_STAT;
1606 coffsymbol (section->symbol)->native = native;
1608 coff_set_custom_section_alignment (abfd, section,
1609 coff_section_alignment_table,
1610 coff_section_alignment_table_size);
1615 #ifdef COFF_ALIGN_IN_SECTION_HEADER
1617 /* Set the alignment of a BFD section. */
1619 static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR));
1622 coff_set_alignment_hook (abfd, section, scnhdr)
1623 bfd * abfd ATTRIBUTE_UNUSED;
1627 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1631 /* Extract ALIGN from 2**ALIGN stored in section header. */
1632 for (i = 0; i < 32; i++)
1633 if ((1 << i) >= hdr->s_align)
1637 /* TI tools puts the alignment power in bits 8-11. */
1638 i = (hdr->s_flags >> 8) & 0xF ;
1640 #ifdef COFF_DECODE_ALIGNMENT
1641 i = COFF_DECODE_ALIGNMENT(hdr->s_flags);
1643 section->alignment_power = i;
1645 #ifdef coff_set_section_load_page
1646 coff_set_section_load_page (section, hdr->s_page);
1650 #else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1653 /* A couple of macros to help setting the alignment power field. */
1654 #define ALIGN_SET(field,x,y) \
1655 if (((field) & IMAGE_SCN_ALIGN_64BYTES) == x )\
1657 section->alignment_power = y;\
1660 #define ELIFALIGN_SET(field,x,y) \
1661 else if (( (field) & IMAGE_SCN_ALIGN_64BYTES) == x ) \
1663 section->alignment_power = y;\
1666 static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR));
1669 coff_set_alignment_hook (abfd, section, scnhdr)
1670 bfd * abfd ATTRIBUTE_UNUSED;
1674 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1677 ALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_64BYTES, 6)
1678 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_32BYTES, 5)
1679 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_16BYTES, 4)
1680 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_8BYTES, 3)
1681 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_4BYTES, 2)
1682 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_2BYTES, 1)
1683 ELIFALIGN_SET (hdr->s_flags, IMAGE_SCN_ALIGN_1BYTES, 0)
1685 /* In a PE image file, the s_paddr field holds the virtual size of a
1686 section, while the s_size field holds the raw size. We also keep
1687 the original section flag value, since not every bit can be
1688 mapped onto a generic BFD section bit. */
1689 if (coff_section_data (abfd, section) == NULL)
1691 amt = sizeof (struct coff_section_tdata);
1692 section->used_by_bfd = (PTR) bfd_zalloc (abfd, amt);
1693 if (section->used_by_bfd == NULL)
1695 /* FIXME: Return error. */
1699 if (pei_section_data (abfd, section) == NULL)
1701 amt = sizeof (struct pei_section_tdata);
1702 coff_section_data (abfd, section)->tdata = (PTR) bfd_zalloc (abfd, amt);
1703 if (coff_section_data (abfd, section)->tdata == NULL)
1705 /* FIXME: Return error. */
1709 pei_section_data (abfd, section)->virt_size = hdr->s_paddr;
1710 pei_section_data (abfd, section)->pe_flags = hdr->s_flags;
1712 section->lma = hdr->s_vaddr;
1714 /* Check for extended relocs. */
1715 if (hdr->s_flags & IMAGE_SCN_LNK_NRELOC_OVFL)
1717 struct external_reloc dst;
1718 struct internal_reloc n;
1719 file_ptr oldpos = bfd_tell (abfd);
1720 bfd_size_type relsz = bfd_coff_relsz (abfd);
1722 bfd_seek (abfd, (file_ptr) hdr->s_relptr, 0);
1723 if (bfd_bread ((PTR) &dst, relsz, abfd) != relsz)
1726 coff_swap_reloc_in (abfd, &dst, &n);
1727 bfd_seek (abfd, oldpos, 0);
1728 section->reloc_count = hdr->s_nreloc = n.r_vaddr - 1;
1729 section->rel_filepos += relsz;
1731 else if (hdr->s_nreloc == 0xffff)
1732 (*_bfd_error_handler)
1733 ("%s: warning: claims to have 0xffff relocs, without overflow",
1734 bfd_get_filename (abfd));
1737 #undef ELIFALIGN_SET
1739 #else /* ! COFF_WITH_PE */
1742 /* We grossly abuse this function to handle XCOFF overflow headers.
1743 When we see one, we correct the reloc and line number counts in the
1744 real header, and remove the section we just created. */
1746 static void coff_set_alignment_hook PARAMS ((bfd *, asection *, PTR));
1749 coff_set_alignment_hook (abfd, section, scnhdr)
1754 struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
1758 if ((hdr->s_flags & STYP_OVRFLO) == 0)
1761 real_sec = coff_section_from_bfd_index (abfd, (int) hdr->s_nreloc);
1762 if (real_sec == NULL)
1765 real_sec->reloc_count = hdr->s_paddr;
1766 real_sec->lineno_count = hdr->s_vaddr;
1768 for (ps = &abfd->sections; *ps != NULL; ps = &(*ps)->next)
1772 bfd_section_list_remove (abfd, ps);
1773 --abfd->section_count;
1779 #else /* ! RS6000COFF_C */
1781 #define coff_set_alignment_hook \
1782 ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void)
1784 #endif /* ! RS6000COFF_C */
1785 #endif /* ! COFF_WITH_PE */
1786 #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
1788 #ifndef coff_mkobject
1790 static bfd_boolean coff_mkobject PARAMS ((bfd *));
1793 coff_mkobject (abfd)
1796 coff_data_type *coff;
1797 bfd_size_type amt = sizeof (coff_data_type);
1799 abfd->tdata.coff_obj_data = (struct coff_tdata *) bfd_zalloc (abfd, amt);
1800 if (abfd->tdata.coff_obj_data == 0)
1802 coff = coff_data (abfd);
1803 coff->symbols = (coff_symbol_type *) NULL;
1804 coff->conversion_table = (unsigned int *) NULL;
1805 coff->raw_syments = (struct coff_ptr_struct *) NULL;
1806 coff->relocbase = 0;
1807 coff->local_toc_sym_map = 0;
1809 /* make_abs_section(abfd);*/
1815 /* Create the COFF backend specific information. */
1817 #ifndef coff_mkobject_hook
1819 coff_mkobject_hook (abfd, filehdr, aouthdr)
1822 PTR aouthdr ATTRIBUTE_UNUSED;
1824 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1825 coff_data_type *coff;
1827 if (! coff_mkobject (abfd))
1830 coff = coff_data (abfd);
1832 coff->sym_filepos = internal_f->f_symptr;
1834 /* These members communicate important constants about the symbol
1835 table to GDB's symbol-reading code. These `constants'
1836 unfortunately vary among coff implementations... */
1837 coff->local_n_btmask = N_BTMASK;
1838 coff->local_n_btshft = N_BTSHFT;
1839 coff->local_n_tmask = N_TMASK;
1840 coff->local_n_tshift = N_TSHIFT;
1841 coff->local_symesz = bfd_coff_symesz (abfd);
1842 coff->local_auxesz = bfd_coff_auxesz (abfd);
1843 coff->local_linesz = bfd_coff_linesz (abfd);
1845 coff->timestamp = internal_f->f_timdat;
1847 obj_raw_syment_count (abfd) =
1848 obj_conv_table_size (abfd) =
1849 internal_f->f_nsyms;
1852 if ((internal_f->f_flags & F_SHROBJ) != 0)
1853 abfd->flags |= DYNAMIC;
1854 if (aouthdr != NULL && internal_f->f_opthdr >= bfd_coff_aoutsz (abfd))
1856 struct internal_aouthdr *internal_a =
1857 (struct internal_aouthdr *) aouthdr;
1858 struct xcoff_tdata *xcoff;
1860 xcoff = xcoff_data (abfd);
1861 # ifdef U803XTOCMAGIC
1862 xcoff->xcoff64 = internal_f->f_magic == U803XTOCMAGIC;
1866 xcoff->full_aouthdr = TRUE;
1867 xcoff->toc = internal_a->o_toc;
1868 xcoff->sntoc = internal_a->o_sntoc;
1869 xcoff->snentry = internal_a->o_snentry;
1870 bfd_xcoff_text_align_power (abfd) = internal_a->o_algntext;
1871 bfd_xcoff_data_align_power (abfd) = internal_a->o_algndata;
1872 xcoff->modtype = internal_a->o_modtype;
1873 xcoff->cputype = internal_a->o_cputype;
1874 xcoff->maxdata = internal_a->o_maxdata;
1875 xcoff->maxstack = internal_a->o_maxstack;
1880 /* Set the flags field from the COFF header read in. */
1881 if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags))
1886 /* FIXME: I'm not sure this is ever executed, since peicode.h
1887 defines coff_mkobject_hook. */
1888 if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0)
1889 abfd->flags |= HAS_DEBUG;
1896 /* Determine the machine architecture and type. FIXME: This is target
1897 dependent because the magic numbers are defined in the target
1898 dependent header files. But there is no particular need for this.
1899 If the magic numbers were moved to a separate file, this function
1900 would be target independent and would also be much more successful
1901 at linking together COFF files for different architectures. */
1904 coff_set_arch_mach_hook (abfd, filehdr)
1908 unsigned long machine;
1909 enum bfd_architecture arch;
1910 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
1912 /* Zero selects the default machine for an arch. */
1914 switch (internal_f->f_magic)
1916 #ifdef OR32_MAGIC_BIG
1917 case OR32_MAGIC_BIG:
1918 case OR32_MAGIC_LITTLE:
1919 arch = bfd_arch_or32;
1924 arch = bfd_arch_powerpc;
1930 case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler */
1931 case LYNXCOFFMAGIC: /* shadows the m68k Lynx number below, sigh */
1932 arch = bfd_arch_i386;
1937 arch = bfd_arch_ia64;
1940 #ifdef A29K_MAGIC_BIG
1941 case A29K_MAGIC_BIG:
1942 case A29K_MAGIC_LITTLE:
1943 arch = bfd_arch_a29k;
1950 arch = bfd_arch_arm;
1951 machine = bfd_arm_get_mach_from_notes (abfd, ARM_NOTE_SECTION);
1952 if (machine == bfd_mach_arm_unknown)
1954 switch (internal_f->f_flags & F_ARM_ARCHITECTURE_MASK)
1956 case F_ARM_2: machine = bfd_mach_arm_2; break;
1957 case F_ARM_2a: machine = bfd_mach_arm_2a; break;
1958 case F_ARM_3: machine = bfd_mach_arm_3; break;
1960 case F_ARM_3M: machine = bfd_mach_arm_3M; break;
1961 case F_ARM_4: machine = bfd_mach_arm_4; break;
1962 case F_ARM_4T: machine = bfd_mach_arm_4T; break;
1963 /* The COFF header does not have enough bits available
1964 to cover all the different ARM architectures. So
1965 we interpret F_ARM_5, the highest flag value to mean
1966 "the highest ARM architecture known to BFD" which is
1967 currently the XScale. */
1968 case F_ARM_5: machine = bfd_mach_arm_XScale; break;
1976 #ifdef MC68KBCSMAGIC
1979 #ifdef APOLLOM68KMAGIC
1980 case APOLLOM68KMAGIC:
1982 #ifdef LYNXCOFFMAGIC
1985 arch = bfd_arch_m68k;
1986 machine = bfd_mach_m68020;
1993 arch = bfd_arch_m88k;
1999 arch = bfd_arch_z8k;
2000 switch (internal_f->f_flags & F_MACHMASK)
2003 machine = bfd_mach_z8001;
2006 machine = bfd_mach_z8002;
2015 arch = bfd_arch_i860;
2022 arch = bfd_arch_i960;
2023 switch (F_I960TYPE & internal_f->f_flags)
2027 machine = bfd_mach_i960_core;
2030 machine = bfd_mach_i960_kb_sb;
2033 machine = bfd_mach_i960_mc;
2036 machine = bfd_mach_i960_xa;
2039 machine = bfd_mach_i960_ca;
2042 machine = bfd_mach_i960_ka_sa;
2045 machine = bfd_mach_i960_jx;
2048 machine = bfd_mach_i960_hx;
2067 if (xcoff_data (abfd)->cputype != -1)
2068 cputype = xcoff_data (abfd)->cputype & 0xff;
2071 /* We did not get a value from the a.out header. If the
2072 file has not been stripped, we may be able to get the
2073 architecture information from the first symbol, if it
2074 is a .file symbol. */
2075 if (obj_raw_syment_count (abfd) == 0)
2080 struct internal_syment sym;
2081 bfd_size_type amt = bfd_coff_symesz (abfd);
2083 buf = (bfd_byte *) bfd_malloc (amt);
2084 if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
2085 || bfd_bread (buf, amt, abfd) != amt)
2090 bfd_coff_swap_sym_in (abfd, (PTR) buf, (PTR) &sym);
2091 if (sym.n_sclass == C_FILE)
2092 cputype = sym.n_type & 0xff;
2099 /* FIXME: We don't handle all cases here. */
2104 arch = bfd_xcoff_architecture (abfd);
2105 machine = bfd_xcoff_machine (abfd);
2109 arch = bfd_arch_powerpc;
2110 machine = bfd_mach_ppc_601;
2112 case 2: /* 64 bit PowerPC */
2113 arch = bfd_arch_powerpc;
2114 machine = bfd_mach_ppc_620;
2117 arch = bfd_arch_powerpc;
2118 machine = bfd_mach_ppc;
2121 arch = bfd_arch_rs6000;
2122 machine = bfd_mach_rs6k;
2131 arch = bfd_arch_we32k;
2137 arch = bfd_arch_h8300;
2138 machine = bfd_mach_h8300;
2139 /* !! FIXME this probably isn't the right place for this. */
2140 abfd->flags |= BFD_IS_RELAXABLE;
2146 arch = bfd_arch_h8300;
2147 machine = bfd_mach_h8300h;
2148 /* !! FIXME this probably isn't the right place for this. */
2149 abfd->flags |= BFD_IS_RELAXABLE;
2155 arch = bfd_arch_h8300;
2156 machine = bfd_mach_h8300s;
2157 /* !! FIXME this probably isn't the right place for this. */
2158 abfd->flags |= BFD_IS_RELAXABLE;
2164 arch = bfd_arch_h8300;
2165 machine = bfd_mach_h8300hn;
2166 /* !! FIXME this probably isn't the right place for this. */
2167 abfd->flags |= BFD_IS_RELAXABLE;
2173 arch = bfd_arch_h8300;
2174 machine = bfd_mach_h8300sn;
2175 /* !! FIXME this probably isn't the right place for this. */
2176 abfd->flags |= BFD_IS_RELAXABLE;
2180 #ifdef SH_ARCH_MAGIC_BIG
2181 case SH_ARCH_MAGIC_BIG:
2182 case SH_ARCH_MAGIC_LITTLE:
2184 case SH_ARCH_MAGIC_WINCE:
2190 #ifdef MIPS_ARCH_MAGIC_WINCE
2191 case MIPS_ARCH_MAGIC_WINCE:
2192 arch = bfd_arch_mips;
2198 arch = bfd_arch_h8500;
2204 #ifdef LYNXCOFFMAGIC
2207 arch = bfd_arch_sparc;
2213 arch = bfd_arch_tic30;
2218 #ifdef TICOFF_TARGET_ARCH
2219 /* This TI COFF section should be used by all new TI COFF v0 targets. */
2221 arch = TICOFF_TARGET_ARCH;
2222 machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags);
2228 /* This TI COFF section should be used by all new TI COFF v1/2 targets. */
2229 /* TI COFF1 and COFF2 use the target_id field to specify which arch. */
2232 switch (internal_f->f_target_id)
2236 arch = TICOFF_TARGET_ARCH;
2237 machine = TICOFF_TARGET_MACHINE_GET (internal_f->f_flags);
2241 arch = bfd_arch_obscure;
2242 (*_bfd_error_handler)
2243 (_("Unrecognized TI COFF target id '0x%x'"),
2244 internal_f->f_target_id);
2250 #ifdef TIC80_ARCH_MAGIC
2251 case TIC80_ARCH_MAGIC:
2252 arch = bfd_arch_tic80;
2258 arch = bfd_arch_mcore;
2264 arch = bfd_arch_w65;
2268 default: /* Unreadable input file type. */
2269 arch = bfd_arch_obscure;
2273 bfd_default_set_arch_mach (abfd, arch, machine);
2277 #ifdef SYMNAME_IN_DEBUG
2279 static bfd_boolean symname_in_debug_hook
2280 PARAMS ((bfd *, struct internal_syment *));
2283 symname_in_debug_hook (abfd, sym)
2284 bfd * abfd ATTRIBUTE_UNUSED;
2285 struct internal_syment *sym;
2287 return SYMNAME_IN_DEBUG (sym) != 0;
2292 #define symname_in_debug_hook \
2293 (bfd_boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false
2300 #define FORCE_SYMNAMES_IN_STRINGS
2303 /* Handle the csect auxent of a C_EXT or C_HIDEXT symbol. */
2305 static bfd_boolean coff_pointerize_aux_hook
2306 PARAMS ((bfd *, combined_entry_type *, combined_entry_type *,
2307 unsigned int, combined_entry_type *));
2310 coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux)
2311 bfd *abfd ATTRIBUTE_UNUSED;
2312 combined_entry_type *table_base;
2313 combined_entry_type *symbol;
2314 unsigned int indaux;
2315 combined_entry_type *aux;
2317 int class = symbol->u.syment.n_sclass;
2319 if ((class == C_EXT || class == C_HIDEXT)
2320 && indaux + 1 == symbol->u.syment.n_numaux)
2322 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD)
2324 aux->u.auxent.x_csect.x_scnlen.p =
2325 table_base + aux->u.auxent.x_csect.x_scnlen.l;
2326 aux->fix_scnlen = 1;
2329 /* Return TRUE to indicate that the caller should not do any
2330 further work on this auxent. */
2334 /* Return FALSE to indicate that this auxent should be handled by
2342 /* We don't want to pointerize bal entries. */
2344 static bfd_boolean coff_pointerize_aux_hook
2345 PARAMS ((bfd *, combined_entry_type *, combined_entry_type *,
2346 unsigned int, combined_entry_type *));
2349 coff_pointerize_aux_hook (abfd, table_base, symbol, indaux, aux)
2350 bfd *abfd ATTRIBUTE_UNUSED;
2351 combined_entry_type *table_base ATTRIBUTE_UNUSED;
2352 combined_entry_type *symbol;
2353 unsigned int indaux;
2354 combined_entry_type *aux ATTRIBUTE_UNUSED;
2356 /* Return TRUE if we don't want to pointerize this aux entry, which
2357 is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */
2359 && (symbol->u.syment.n_sclass == C_LEAFPROC
2360 || symbol->u.syment.n_sclass == C_LEAFSTAT
2361 || symbol->u.syment.n_sclass == C_LEAFEXT));
2366 #define coff_pointerize_aux_hook 0
2369 #endif /* ! RS6000COFF_C */
2371 /* Print an aux entry. This returns TRUE if it has printed it. */
2373 static bfd_boolean coff_print_aux
2374 PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *,
2375 combined_entry_type *, unsigned int));
2378 coff_print_aux (abfd, file, table_base, symbol, aux, indaux)
2379 bfd *abfd ATTRIBUTE_UNUSED;
2380 FILE *file ATTRIBUTE_UNUSED;
2381 combined_entry_type *table_base ATTRIBUTE_UNUSED;
2382 combined_entry_type *symbol ATTRIBUTE_UNUSED;
2383 combined_entry_type *aux ATTRIBUTE_UNUSED;
2384 unsigned int indaux ATTRIBUTE_UNUSED;
2387 if ((symbol->u.syment.n_sclass == C_EXT
2388 || symbol->u.syment.n_sclass == C_HIDEXT)
2389 && indaux + 1 == symbol->u.syment.n_numaux)
2391 /* This is a csect entry. */
2392 fprintf (file, "AUX ");
2393 if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) != XTY_LD)
2395 BFD_ASSERT (! aux->fix_scnlen);
2397 fprintf (file, "val %5lld", aux->u.auxent.x_csect.x_scnlen.l);
2399 fprintf (file, "val %5ld", (long) aux->u.auxent.x_csect.x_scnlen.l);
2404 fprintf (file, "indx ");
2405 if (! aux->fix_scnlen)
2407 fprintf (file, "%4lld", aux->u.auxent.x_csect.x_scnlen.l);
2409 fprintf (file, "%4ld", (long) aux->u.auxent.x_csect.x_scnlen.l);
2412 fprintf (file, "%4ld",
2413 (long) (aux->u.auxent.x_csect.x_scnlen.p - table_base));
2416 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2417 aux->u.auxent.x_csect.x_parmhash,
2418 (unsigned int) aux->u.auxent.x_csect.x_snhash,
2419 SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp),
2420 SMTYP_ALIGN (aux->u.auxent.x_csect.x_smtyp),
2421 (unsigned int) aux->u.auxent.x_csect.x_smclas,
2422 aux->u.auxent.x_csect.x_stab,
2423 (unsigned int) aux->u.auxent.x_csect.x_snstab);
2428 /* Return FALSE to indicate that no special action was taken. */
2436 To write relocations, the back end steps though the
2437 canonical relocation table and create an
2438 @code{internal_reloc}. The symbol index to use is removed from
2439 the @code{offset} field in the symbol table supplied. The
2440 address comes directly from the sum of the section base
2441 address and the relocation offset; the type is dug directly
2442 from the howto field. Then the @code{internal_reloc} is
2443 swapped into the shape of an @code{external_reloc} and written
2450 static int compare_arelent_ptr PARAMS ((const PTR, const PTR));
2452 /* AUX's ld wants relocations to be sorted. */
2454 compare_arelent_ptr (x, y)
2458 const arelent **a = (const arelent **) x;
2459 const arelent **b = (const arelent **) y;
2460 bfd_size_type aadr = (*a)->address;
2461 bfd_size_type badr = (*b)->address;
2463 return (aadr < badr ? -1 : badr < aadr ? 1 : 0);
2466 #endif /* TARG_AUX */
2469 coff_write_relocs (abfd, first_undef)
2475 for (s = abfd->sections; s != (asection *) NULL; s = s->next)
2478 struct external_reloc dst;
2485 /* Sort relocations before we write them out. */
2488 amt = s->reloc_count;
2489 amt *= sizeof (arelent *);
2490 p = (arelent **) bfd_malloc (amt);
2491 if (p == NULL && s->reloc_count > 0)
2493 memcpy (p, s->orelocation, (size_t) amt);
2494 qsort (p, s->reloc_count, sizeof (arelent *), compare_arelent_ptr);
2498 if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0)
2502 if (obj_pe (abfd) && s->reloc_count >= 0xffff)
2504 /* Encode real count here as first reloc. */
2505 struct internal_reloc n;
2507 memset ((PTR) & n, 0, sizeof (n));
2508 /* Add one to count *this* reloc (grr). */
2509 n.r_vaddr = s->reloc_count + 1;
2510 coff_swap_reloc_out (abfd, &n, &dst);
2511 if (bfd_bwrite ((PTR) & dst, (bfd_size_type) bfd_coff_relsz (abfd),
2512 abfd) != bfd_coff_relsz (abfd))
2517 for (i = 0; i < s->reloc_count; i++)
2519 struct internal_reloc n;
2522 memset ((PTR) & n, 0, sizeof (n));
2524 /* Now we've renumbered the symbols we know where the
2525 undefined symbols live in the table. Check the reloc
2526 entries for symbols who's output bfd isn't the right one.
2527 This is because the symbol was undefined (which means
2528 that all the pointers are never made to point to the same
2529 place). This is a bad thing,'cause the symbols attached
2530 to the output bfd are indexed, so that the relocation
2531 entries know which symbol index they point to. So we
2532 have to look up the output symbol here. */
2534 if (q->sym_ptr_ptr[0]->the_bfd != abfd)
2537 const char *sname = q->sym_ptr_ptr[0]->name;
2538 asymbol **outsyms = abfd->outsymbols;
2540 for (j = first_undef; outsyms[j]; j++)
2542 const char *intable = outsyms[j]->name;
2544 if (strcmp (intable, sname) == 0) {
2545 /* Got a hit, so repoint the reloc. */
2546 q->sym_ptr_ptr = outsyms + j;
2552 n.r_vaddr = q->address + s->vma;
2555 /* The 29k const/consth reloc pair is a real kludge. The consth
2556 part doesn't have a symbol; it has an offset. So rebuilt
2558 if (q->howto->type == R_IHCONST)
2559 n.r_symndx = q->addend;
2564 #ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P
2565 if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q,s))
2567 if ((*q->sym_ptr_ptr)->section == bfd_abs_section_ptr
2568 && ((*q->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0)
2570 /* This is a relocation relative to the absolute symbol. */
2574 n.r_symndx = get_index ((*(q->sym_ptr_ptr)));
2575 /* Take notice if the symbol reloc points to a symbol
2576 we don't have in our symbol table. What should we
2578 if (n.r_symndx > obj_conv_table_size (abfd))
2583 #ifdef SWAP_OUT_RELOC_OFFSET
2584 n.r_offset = q->addend;
2588 /* Work out reloc type from what is required. */
2589 SELECT_RELOC (n, q->howto);
2591 n.r_type = q->howto->type;
2593 coff_swap_reloc_out (abfd, &n, &dst);
2595 if (bfd_bwrite ((PTR) & dst, (bfd_size_type) bfd_coff_relsz (abfd),
2596 abfd) != bfd_coff_relsz (abfd))
2609 /* Set flags and magic number of a coff file from architecture and machine
2610 type. Result is TRUE if we can represent the arch&type, FALSE if not. */
2613 coff_set_flags (abfd, magicp, flagsp)
2615 unsigned int *magicp ATTRIBUTE_UNUSED;
2616 unsigned short *flagsp ATTRIBUTE_UNUSED;
2618 switch (bfd_get_arch (abfd))
2623 switch (bfd_get_mach (abfd))
2625 case bfd_mach_z8001:
2628 case bfd_mach_z8002:
2642 *magicp = I960ROMAGIC;
2644 ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC :
2645 I960RWMAGIC); FIXME???
2647 switch (bfd_get_mach (abfd))
2649 case bfd_mach_i960_core:
2652 case bfd_mach_i960_kb_sb:
2655 case bfd_mach_i960_mc:
2658 case bfd_mach_i960_xa:
2661 case bfd_mach_i960_ca:
2664 case bfd_mach_i960_ka_sa:
2667 case bfd_mach_i960_jx:
2670 case bfd_mach_i960_hx:
2683 case bfd_arch_tic30:
2684 *magicp = TIC30MAGIC;
2688 #ifdef TICOFF_DEFAULT_MAGIC
2689 case TICOFF_TARGET_ARCH:
2690 /* If there's no indication of which version we want, use the default. */
2692 *magicp = TICOFF_DEFAULT_MAGIC;
2695 /* We may want to output in a different COFF version. */
2696 switch (abfd->xvec->name[4])
2699 *magicp = TICOFF0MAGIC;
2702 *magicp = TICOFF1MAGIC;
2705 *magicp = TICOFF2MAGIC;
2711 TICOFF_TARGET_MACHINE_SET (flagsp, bfd_get_mach (abfd));
2715 #ifdef TIC80_ARCH_MAGIC
2716 case bfd_arch_tic80:
2717 *magicp = TIC80_ARCH_MAGIC;
2723 * magicp = ARMPEMAGIC;
2725 * magicp = ARMMAGIC;
2728 if (APCS_SET (abfd))
2730 if (APCS_26_FLAG (abfd))
2731 * flagsp |= F_APCS26;
2733 if (APCS_FLOAT_FLAG (abfd))
2734 * flagsp |= F_APCS_FLOAT;
2736 if (PIC_FLAG (abfd))
2739 if (INTERWORK_SET (abfd) && INTERWORK_FLAG (abfd))
2740 * flagsp |= F_INTERWORK;
2741 switch (bfd_get_mach (abfd))
2743 case bfd_mach_arm_2: * flagsp |= F_ARM_2; break;
2744 case bfd_mach_arm_2a: * flagsp |= F_ARM_2a; break;
2745 case bfd_mach_arm_3: * flagsp |= F_ARM_3; break;
2746 case bfd_mach_arm_3M: * flagsp |= F_ARM_3M; break;
2747 case bfd_mach_arm_4: * flagsp |= F_ARM_4; break;
2748 case bfd_mach_arm_4T: * flagsp |= F_ARM_4T; break;
2749 case bfd_mach_arm_5: * flagsp |= F_ARM_5; break;
2750 /* FIXME: we do not have F_ARM vaues greater than F_ARM_5.
2751 See also the comment in coff_set_arch_mach_hook(). */
2752 case bfd_mach_arm_5T: * flagsp |= F_ARM_5; break;
2753 case bfd_mach_arm_5TE: * flagsp |= F_ARM_5; break;
2754 case bfd_mach_arm_XScale: * flagsp |= F_ARM_5; break;
2759 case bfd_arch_powerpc:
2766 *magicp = I386MAGIC;
2768 /* Just overwrite the usual value if we're doing Lynx. */
2769 *magicp = LYNXCOFFMAGIC;
2776 *magicp = I860MAGIC;
2782 *magicp = IA64MAGIC;
2788 #ifdef APOLLOM68KMAGIC
2789 *magicp = APOLLO_COFF_VERSION_NUMBER;
2791 /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */
2792 #ifdef NAMES_HAVE_UNDERSCORE
2793 *magicp = MC68KBCSMAGIC;
2795 *magicp = MC68MAGIC;
2799 /* Just overwrite the usual value if we're doing Lynx. */
2800 *magicp = LYNXCOFFMAGIC;
2808 *magicp = MC88OMAGIC;
2813 case bfd_arch_h8300:
2814 switch (bfd_get_mach (abfd))
2816 case bfd_mach_h8300:
2817 *magicp = H8300MAGIC;
2819 case bfd_mach_h8300h:
2820 *magicp = H8300HMAGIC;
2822 case bfd_mach_h8300s:
2823 *magicp = H8300SMAGIC;
2825 case bfd_mach_h8300hn:
2826 *magicp = H8300HNMAGIC;
2828 case bfd_mach_h8300sn:
2829 *magicp = H8300SNMAGIC;
2835 #ifdef SH_ARCH_MAGIC_BIG
2837 #ifdef COFF_IMAGE_WITH_PE
2838 *magicp = SH_ARCH_MAGIC_WINCE;
2840 if (bfd_big_endian (abfd))
2841 *magicp = SH_ARCH_MAGIC_BIG;
2843 *magicp = SH_ARCH_MAGIC_LITTLE;
2849 #ifdef MIPS_ARCH_MAGIC_WINCE
2851 *magicp = MIPS_ARCH_MAGIC_WINCE;
2857 case bfd_arch_sparc:
2858 *magicp = SPARCMAGIC;
2860 /* Just overwrite the usual value if we're doing Lynx. */
2861 *magicp = LYNXCOFFMAGIC;
2868 case bfd_arch_h8500:
2869 *magicp = H8500MAGIC;
2873 #ifdef A29K_MAGIC_BIG
2875 if (bfd_big_endian (abfd))
2876 *magicp = A29K_MAGIC_BIG;
2878 *magicp = A29K_MAGIC_LITTLE;
2884 case bfd_arch_we32k:
2885 *magicp = WE32KMAGIC;
2891 case bfd_arch_rs6000:
2893 case bfd_arch_powerpc:
2895 BFD_ASSERT (bfd_get_flavour (abfd) == bfd_target_xcoff_flavour);
2896 *magicp = bfd_xcoff_magic_number (abfd);
2902 case bfd_arch_mcore:
2903 * magicp = MCOREMAGIC;
2913 #ifdef OR32_MAGIC_BIG
2915 if (bfd_big_endian (abfd))
2916 * magicp = OR32_MAGIC_BIG;
2918 * magicp = OR32_MAGIC_LITTLE;
2922 default: /* Unknown architecture. */
2923 /* Fall through to "return FALSE" below, to avoid
2924 "statement never reached" errors on the one below. */
2932 coff_set_arch_mach (abfd, arch, machine)
2934 enum bfd_architecture arch;
2935 unsigned long machine;
2938 unsigned short dummy2;
2940 if (! bfd_default_set_arch_mach (abfd, arch, machine))
2943 if (arch != bfd_arch_unknown
2944 && ! coff_set_flags (abfd, &dummy1, &dummy2))
2945 return FALSE; /* We can't represent this type */
2947 return TRUE; /* We're easy ... */
2950 #ifdef COFF_IMAGE_WITH_PE
2952 /* This is used to sort sections by VMA, as required by PE image
2955 static int sort_by_secaddr PARAMS ((const PTR, const PTR));
2958 sort_by_secaddr (arg1, arg2)
2962 const asection *a = *(const asection **) arg1;
2963 const asection *b = *(const asection **) arg2;
2965 if (a->vma < b->vma)
2967 else if (a->vma > b->vma)
2973 #endif /* COFF_IMAGE_WITH_PE */
2975 /* Calculate the file position for each section. */
2978 #define ALIGN_SECTIONS_IN_FILE
2980 #if defined(TIC80COFF) || defined(TICOFF)
2981 #undef ALIGN_SECTIONS_IN_FILE
2985 coff_compute_section_file_positions (abfd)
2989 asection *previous = (asection *) NULL;
2990 file_ptr sofar = bfd_coff_filhsz (abfd);
2991 bfd_boolean align_adjust;
2992 #ifdef ALIGN_SECTIONS_IN_FILE
2997 /* On XCOFF, if we have symbols, set up the .debug section. */
2998 if (bfd_get_symcount (abfd) > 0)
3001 bfd_size_type i, symcount;
3005 symcount = bfd_get_symcount (abfd);
3006 for (symp = abfd->outsymbols, i = 0; i < symcount; symp++, i++)
3008 coff_symbol_type *cf;
3010 cf = coff_symbol_from (abfd, *symp);
3012 && cf->native != NULL
3013 && SYMNAME_IN_DEBUG (&cf->native->u.syment))
3017 len = strlen (bfd_asymbol_name (*symp));
3018 if (len > SYMNMLEN || bfd_coff_force_symnames_in_strings (abfd))
3019 sz += len + 1 + bfd_coff_debug_string_prefix_length (abfd);
3026 dsec = bfd_make_section_old_way (abfd, DOT_DEBUG);
3030 dsec->flags |= SEC_HAS_CONTENTS;
3035 #ifdef COFF_IMAGE_WITH_PE
3037 if (coff_data (abfd)->link_info)
3039 page_size = pe_data (abfd)->pe_opthdr.FileAlignment;
3041 /* If no file alignment has been set, default to one.
3042 This repairs 'ld -r' for arm-wince-pe target. */
3047 page_size = PE_DEF_FILE_ALIGNMENT;
3049 #ifdef COFF_PAGE_SIZE
3050 int page_size = COFF_PAGE_SIZE;
3054 if (bfd_get_start_address (abfd))
3056 /* A start address may have been added to the original file. In this
3057 case it will need an optional header to record it. */
3058 abfd->flags |= EXEC_P;
3061 if (abfd->flags & EXEC_P)
3062 sofar += bfd_coff_aoutsz (abfd);
3064 else if (xcoff_data (abfd)->full_aouthdr)
3065 sofar += bfd_coff_aoutsz (abfd);
3067 sofar += SMALL_AOUTSZ;
3070 sofar += abfd->section_count * bfd_coff_scnhsz (abfd);
3073 /* XCOFF handles overflows in the reloc and line number count fields
3074 by allocating a new section header to hold the correct counts. */
3075 for (current = abfd->sections; current != NULL; current = current->next)
3076 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3077 sofar += bfd_coff_scnhsz (abfd);
3080 #ifdef COFF_IMAGE_WITH_PE
3082 /* PE requires the sections to be in memory order when listed in
3083 the section headers. It also does not like empty loadable
3084 sections. The sections apparently do not have to be in the
3085 right order in the image file itself, but we do need to get the
3086 target_index values right. */
3089 asection **section_list;
3095 for (current = abfd->sections; current != NULL; current = current->next)
3098 /* We allocate an extra cell to simplify the final loop. */
3099 amt = sizeof (struct asection *) * (count + 1);
3100 section_list = bfd_malloc (amt);
3101 if (section_list == NULL)
3105 for (current = abfd->sections; current != NULL; current = current->next)
3107 section_list[i] = current;
3110 section_list[i] = NULL;
3112 qsort (section_list, count, sizeof (asection *), sort_by_secaddr);
3114 /* Rethread the linked list into sorted order; at the same time,
3115 assign target_index values. */
3117 abfd->sections = section_list[0];
3118 for (i = 0; i < count; i++)
3120 current = section_list[i];
3121 current->next = section_list[i + 1];
3123 /* Later, if the section has zero size, we'll be throwing it
3124 away, so we don't want to number it now. Note that having
3125 a zero size and having real contents are different
3126 concepts: .bss has no contents, but (usually) non-zero
3128 if (current->size == 0)
3130 /* Discard. However, it still might have (valid) symbols
3131 in it, so arbitrarily set it to section 1 (indexing is
3132 1-based here; usually .text). __end__ and other
3133 contents of .endsection really have this happen.
3134 FIXME: This seems somewhat dubious. */
3135 current->target_index = 1;
3138 current->target_index = target_index++;
3140 abfd->section_tail = ¤t->next;
3142 free (section_list);
3144 #else /* ! COFF_IMAGE_WITH_PE */
3146 /* Set the target_index field. */
3150 for (current = abfd->sections; current != NULL; current = current->next)
3151 current->target_index = target_index++;
3153 #endif /* ! COFF_IMAGE_WITH_PE */
3155 align_adjust = FALSE;
3156 for (current = abfd->sections;
3157 current != (asection *) NULL;
3158 current = current->next)
3160 #ifdef COFF_IMAGE_WITH_PE
3161 /* With PE we have to pad each section to be a multiple of its
3162 page size too, and remember both sizes. */
3163 if (coff_section_data (abfd, current) == NULL)
3165 bfd_size_type amt = sizeof (struct coff_section_tdata);
3166 current->used_by_bfd = (PTR) bfd_zalloc (abfd, amt);
3167 if (current->used_by_bfd == NULL)
3170 if (pei_section_data (abfd, current) == NULL)
3172 bfd_size_type amt = sizeof (struct pei_section_tdata);
3173 coff_section_data (abfd, current)->tdata
3174 = (PTR) bfd_zalloc (abfd, amt);
3175 if (coff_section_data (abfd, current)->tdata == NULL)
3178 if (pei_section_data (abfd, current)->virt_size == 0)
3179 pei_section_data (abfd, current)->virt_size = current->size;
3182 /* Only deal with sections which have contents. */
3183 if (!(current->flags & SEC_HAS_CONTENTS))
3186 #ifdef COFF_IMAGE_WITH_PE
3187 /* Make sure we skip empty sections in a PE image. */
3188 if (current->size == 0)
3192 /* Align the sections in the file to the same boundary on
3193 which they are aligned in virtual memory. I960 doesn't
3194 do this (FIXME) so we can stay in sync with Intel. 960
3195 doesn't yet page from files... */
3196 #ifdef ALIGN_SECTIONS_IN_FILE
3197 if ((abfd->flags & EXEC_P) != 0)
3199 /* Make sure this section is aligned on the right boundary - by
3200 padding the previous section up if necessary. */
3204 /* AIX loader checks the text section alignment of (vma - filepos)
3205 So even though the filepos may be aligned wrt the o_algntext, for
3206 AIX executables, this check fails. This shows up when a native
3207 AIX executable is stripped with gnu strip because the default vma
3208 of native is 0x10000150 but default for gnu is 0x10000140. Gnu
3209 stripped gnu excutable passes this check because the filepos is
3210 0x0140. This problem also show up with 64 bit shared objects. The
3211 data section must also be aligned. */
3212 if (!strcmp (current->name, _TEXT)
3213 || !strcmp (current->name, _DATA))
3218 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3220 align = 1 << current->alignment_power;
3221 pad = abs (current->vma - sofar) % align;
3232 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3235 if (previous != (asection *) NULL)
3236 previous->size += sofar - old_sofar;
3241 /* In demand paged files the low order bits of the file offset
3242 must match the low order bits of the virtual address. */
3243 #ifdef COFF_PAGE_SIZE
3244 if ((abfd->flags & D_PAGED) != 0
3245 && (current->flags & SEC_ALLOC) != 0)
3246 sofar += (current->vma - (bfd_vma) sofar) % page_size;
3248 current->filepos = sofar;
3250 #ifdef COFF_IMAGE_WITH_PE
3251 /* Set the padded size. */
3252 current->size = (current->size + page_size -1) & -page_size;
3255 sofar += current->size;
3257 #ifdef ALIGN_SECTIONS_IN_FILE
3258 /* Make sure that this section is of the right size too. */
3259 if ((abfd->flags & EXEC_P) == 0)
3261 bfd_size_type old_size;
3263 old_size = current->size;
3264 current->size = BFD_ALIGN (current->size,
3265 1 << current->alignment_power);
3266 align_adjust = current->size != old_size;
3267 sofar += current->size - old_size;
3272 sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
3273 align_adjust = sofar != old_sofar;
3274 current->size += sofar - old_sofar;
3278 #ifdef COFF_IMAGE_WITH_PE
3279 /* For PE we need to make sure we pad out to the aligned
3280 size, in case the caller only writes out data to the
3282 if (pei_section_data (abfd, current)->virt_size < current->size)
3283 align_adjust = TRUE;
3287 /* Force .lib sections to start at zero. The vma is then
3288 incremented in coff_set_section_contents. This is right for
3290 if (strcmp (current->name, _LIB) == 0)
3291 bfd_set_section_vma (abfd, current, 0);
3297 /* It is now safe to write to the output file. If we needed an
3298 alignment adjustment for the last section, then make sure that
3299 there is a byte at offset sofar. If there are no symbols and no
3300 relocs, then nothing follows the last section. If we don't force
3301 the last byte out, then the file may appear to be truncated. */
3307 if (bfd_seek (abfd, sofar - 1, SEEK_SET) != 0
3308 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
3312 /* Make sure the relocations are aligned. We don't need to make
3313 sure that this byte exists, because it will only matter if there
3314 really are relocs. */
3315 sofar = BFD_ALIGN (sofar, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER);
3317 obj_relocbase (abfd) = sofar;
3318 abfd->output_has_begun = TRUE;
3325 /* This can never work, because it is called too late--after the
3326 section positions have been set. I can't figure out what it is
3327 for, so I am going to disable it--Ian Taylor 20 March 1996. */
3329 /* If .file, .text, .data, .bss symbols are missing, add them. */
3330 /* @@ Should we only be adding missing symbols, or overriding the aux
3331 values for existing section symbols? */
3333 coff_add_missing_symbols (abfd)
3336 unsigned int nsyms = bfd_get_symcount (abfd);
3337 asymbol **sympp = abfd->outsymbols;
3340 int need_text = 1, need_data = 1, need_bss = 1, need_file = 1;
3343 for (i = 0; i < nsyms; i++)
3345 coff_symbol_type *csym = coff_symbol_from (abfd, sympp[i]);
3350 /* Only do this if there is a coff representation of the input
3352 if (csym->native && csym->native->u.syment.n_sclass == C_FILE)
3357 name = csym->symbol.name;
3360 if (!strcmp (name, _TEXT))
3363 else if (!strcmp (name, ".wtext"))
3366 else if (!strcmp (name, _DATA))
3368 else if (!strcmp (name, _BSS))
3372 /* Now i == bfd_get_symcount (abfd). */
3373 /* @@ For now, don't deal with .file symbol. */
3376 if (!need_text && !need_data && !need_bss && !need_file)
3378 nsyms += need_text + need_data + need_bss + need_file;
3380 amt *= sizeof (asymbol *);
3381 sympp2 = (asymbol **) bfd_alloc (abfd, amt);
3384 memcpy (sympp2, sympp, i * sizeof (asymbol *));
3387 /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */
3391 sympp2[i++] = coff_section_symbol (abfd, _TEXT);
3393 sympp2[i++] = coff_section_symbol (abfd, _DATA);
3395 sympp2[i++] = coff_section_symbol (abfd, _BSS);
3396 BFD_ASSERT (i == nsyms);
3397 bfd_set_symtab (abfd, sympp2, nsyms);
3403 #ifdef COFF_IMAGE_WITH_PE
3405 static unsigned int pelength;
3406 static unsigned int peheader;
3409 coff_read_word (abfd, value)
3411 unsigned int *value;
3416 status = bfd_bread (b, (bfd_size_type) 2, abfd);
3424 *value = (unsigned int) b[0];
3426 *value = (unsigned int) (b[0] + (b[1] << 8));
3428 pelength += (unsigned int) status;
3434 coff_compute_checksum (abfd)
3437 bfd_boolean more_data;
3444 filepos = (file_ptr) 0;
3448 if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
3451 more_data = coff_read_word (abfd, &value);
3453 total = 0xffff & (total + (total >> 0x10));
3458 return (0xffff & (total + (total >> 0x10)));
3462 coff_apply_checksum (abfd)
3465 unsigned int computed;
3466 unsigned int checksum = 0;
3468 if (bfd_seek (abfd, 0x3c, SEEK_SET) != 0)
3471 if (!coff_read_word (abfd, &peheader))
3474 if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0)
3478 bfd_bwrite (&checksum, (bfd_size_type) 4, abfd);
3480 if (bfd_seek (abfd, peheader, SEEK_SET) != 0)
3483 computed = coff_compute_checksum (abfd);
3485 checksum = computed + pelength;
3487 if (bfd_seek (abfd, peheader + 0x58, SEEK_SET) != 0)
3490 bfd_bwrite (&checksum, (bfd_size_type) 4, abfd);
3495 #endif /* COFF_IMAGE_WITH_PE */
3500 coff_write_object_contents (abfd)
3504 bfd_boolean hasrelocs = FALSE;
3505 bfd_boolean haslinno = FALSE;
3506 bfd_boolean hasdebug = FALSE;
3508 file_ptr reloc_base;
3509 file_ptr lineno_base;
3511 unsigned long reloc_size = 0, reloc_count = 0;
3512 unsigned long lnno_size = 0;
3513 bfd_boolean long_section_names;
3514 asection *text_sec = NULL;
3515 asection *data_sec = NULL;
3516 asection *bss_sec = NULL;
3517 struct internal_filehdr internal_f;
3518 struct internal_aouthdr internal_a;
3519 #ifdef COFF_LONG_SECTION_NAMES
3520 size_t string_size = STRING_SIZE_SIZE;
3523 bfd_set_error (bfd_error_system_call);
3525 /* Make a pass through the symbol table to count line number entries and
3526 put them into the correct asections. */
3528 lnno_size = coff_count_linenumbers (abfd) * bfd_coff_linesz (abfd);
3530 if (! abfd->output_has_begun)
3532 if (! coff_compute_section_file_positions (abfd))
3536 reloc_base = obj_relocbase (abfd);
3538 /* Work out the size of the reloc and linno areas. */
3540 for (current = abfd->sections; current != NULL; current =
3544 /* We store the actual reloc count in the first reloc's addr. */
3545 if (obj_pe (abfd) && current->reloc_count >= 0xffff)
3548 reloc_count += current->reloc_count;
3551 reloc_size = reloc_count * bfd_coff_relsz (abfd);
3553 lineno_base = reloc_base + reloc_size;
3554 sym_base = lineno_base + lnno_size;
3556 /* Indicate in each section->line_filepos its actual file address. */
3557 for (current = abfd->sections; current != NULL; current =
3560 if (current->lineno_count)
3562 current->line_filepos = lineno_base;
3563 current->moving_line_filepos = lineno_base;
3564 lineno_base += current->lineno_count * bfd_coff_linesz (abfd);
3568 current->line_filepos = 0;
3570 if (current->reloc_count)
3572 current->rel_filepos = reloc_base;
3573 reloc_base += current->reloc_count * bfd_coff_relsz (abfd);
3575 /* Extra reloc to hold real count. */
3576 if (obj_pe (abfd) && current->reloc_count >= 0xffff)
3577 reloc_base += bfd_coff_relsz (abfd);
3582 current->rel_filepos = 0;
3586 /* Write section headers to the file. */
3587 internal_f.f_nscns = 0;
3589 if ((abfd->flags & EXEC_P) != 0)
3590 scn_base = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd);
3593 scn_base = bfd_coff_filhsz (abfd);
3596 if (xcoff_data (abfd)->full_aouthdr)
3597 scn_base += bfd_coff_aoutsz (abfd);
3599 scn_base += SMALL_AOUTSZ;
3604 if (bfd_seek (abfd, scn_base, SEEK_SET) != 0)
3607 long_section_names = FALSE;
3608 for (current = abfd->sections;
3610 current = current->next)
3612 struct internal_scnhdr section;
3613 bfd_boolean is_reloc_section = FALSE;
3615 #ifdef COFF_IMAGE_WITH_PE
3616 if (strcmp (current->name, ".reloc") == 0)
3618 is_reloc_section = TRUE;
3620 pe_data (abfd)->has_reloc_section = 1;
3624 internal_f.f_nscns++;
3626 strncpy (section.s_name, current->name, SCNNMLEN);
3628 #ifdef COFF_LONG_SECTION_NAMES
3629 /* Handle long section names as in PE. This must be compatible
3630 with the code in coff_write_symbols and _bfd_coff_final_link. */
3634 len = strlen (current->name);
3637 memset (section.s_name, 0, SCNNMLEN);
3638 sprintf (section.s_name, "/%lu", (unsigned long) string_size);
3639 string_size += len + 1;
3640 long_section_names = TRUE;
3646 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3647 Ian Taylor <ian@cygnus.com>. */
3648 if (strcmp (current->name, _LIB) == 0)
3649 section.s_vaddr = 0;
3652 section.s_vaddr = current->vma;
3653 section.s_paddr = current->lma;
3654 section.s_size = current->size;
3655 #ifdef coff_get_section_load_page
3656 section.s_page = coff_get_section_load_page (current);
3660 section.s_paddr = 0;
3662 #ifdef COFF_IMAGE_WITH_PE
3663 /* Reminder: s_paddr holds the virtual size of the section. */
3664 if (coff_section_data (abfd, current) != NULL
3665 && pei_section_data (abfd, current) != NULL)
3666 section.s_paddr = pei_section_data (abfd, current)->virt_size;
3668 section.s_paddr = 0;
3671 /* If this section has no size or is unloadable then the scnptr
3673 if (current->size == 0
3674 || (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
3675 section.s_scnptr = 0;
3677 section.s_scnptr = current->filepos;
3679 section.s_relptr = current->rel_filepos;
3680 section.s_lnnoptr = current->line_filepos;
3681 section.s_nreloc = current->reloc_count;
3682 section.s_nlnno = current->lineno_count;
3683 #ifndef COFF_IMAGE_WITH_PE
3684 /* In PEI, relocs come in the .reloc section. */
3685 if (current->reloc_count != 0)
3688 if (current->lineno_count != 0)
3690 if ((current->flags & SEC_DEBUGGING) != 0
3691 && ! is_reloc_section)
3696 /* Indicate the use of an XCOFF overflow section header. */
3697 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3699 section.s_nreloc = 0xffff;
3700 section.s_nlnno = 0xffff;
3705 section.s_flags = sec_to_styp_flags (current->name, current->flags);
3707 if (!strcmp (current->name, _TEXT))
3709 else if (!strcmp (current->name, _DATA))
3711 else if (!strcmp (current->name, _BSS))
3715 section.s_align = (current->alignment_power
3716 ? 1 << current->alignment_power
3720 /* TI COFF puts the alignment power in bits 8-11 of the flags. */
3721 section.s_flags |= (current->alignment_power & 0xF) << 8;
3723 #ifdef COFF_ENCODE_ALIGNMENT
3724 COFF_ENCODE_ALIGNMENT(section, current->alignment_power);
3727 #ifdef COFF_IMAGE_WITH_PE
3728 /* Suppress output of the sections if they are null. ld
3729 includes the bss and data sections even if there is no size
3730 assigned to them. NT loader doesn't like it if these section
3731 headers are included if the sections themselves are not
3732 needed. See also coff_compute_section_file_positions. */
3733 if (section.s_size == 0)
3734 internal_f.f_nscns--;
3739 bfd_size_type amt = bfd_coff_scnhsz (abfd);
3741 if (coff_swap_scnhdr_out (abfd, §ion, &buff) == 0
3742 || bfd_bwrite ((PTR) &buff, amt, abfd) != amt)
3747 /* PE stores COMDAT section information in the symbol table. If
3748 this section is supposed to have some COMDAT info, track down
3749 the symbol in the symbol table and modify it. */
3750 if ((current->flags & SEC_LINK_ONCE) != 0)
3752 unsigned int i, count;
3754 coff_symbol_type *csym = NULL;
3758 count = bfd_get_symcount (abfd);
3759 for (i = 0, psym = abfd->outsymbols; i < count; i++, psym++)
3761 if ((*psym)->section != current)
3764 /* Remember the location of the first symbol in this
3766 if (psymsec == NULL)
3769 /* See if this is the section symbol. */
3770 if (strcmp ((*psym)->name, current->name) == 0)
3772 csym = coff_symbol_from (abfd, *psym);
3774 || csym->native == NULL
3775 || csym->native->u.syment.n_numaux < 1
3776 || csym->native->u.syment.n_sclass != C_STAT
3777 || csym->native->u.syment.n_type != T_NULL)
3780 /* Here *PSYM is the section symbol for CURRENT. */
3787 Note that we might not if we're converting the file from
3788 some other object file format. */
3791 combined_entry_type *aux;
3793 /* We don't touch the x_checksum field. The
3794 x_associated field is not currently supported. */
3796 aux = csym->native + 1;
3797 switch (current->flags & SEC_LINK_DUPLICATES)
3799 case SEC_LINK_DUPLICATES_DISCARD:
3800 aux->u.auxent.x_scn.x_comdat = IMAGE_COMDAT_SELECT_ANY;
3803 case SEC_LINK_DUPLICATES_ONE_ONLY:
3804 aux->u.auxent.x_scn.x_comdat =
3805 IMAGE_COMDAT_SELECT_NODUPLICATES;
3808 case SEC_LINK_DUPLICATES_SAME_SIZE:
3809 aux->u.auxent.x_scn.x_comdat =
3810 IMAGE_COMDAT_SELECT_SAME_SIZE;
3813 case SEC_LINK_DUPLICATES_SAME_CONTENTS:
3814 aux->u.auxent.x_scn.x_comdat =
3815 IMAGE_COMDAT_SELECT_EXACT_MATCH;
3819 /* The COMDAT symbol must be the first symbol from this
3820 section in the symbol table. In order to make this
3821 work, we move the COMDAT symbol before the first
3822 symbol we found in the search above. It's OK to
3823 rearrange the symbol table at this point, because
3824 coff_renumber_symbols is going to rearrange it
3825 further and fix up all the aux entries. */
3826 if (psym != psymsec)
3832 for (pcopy = psym; pcopy > psymsec; pcopy--)
3833 pcopy[0] = pcopy[-1];
3838 #endif /* COFF_WITH_PE */
3843 /* XCOFF handles overflows in the reloc and line number count fields
3844 by creating a new section header to hold the correct values. */
3845 for (current = abfd->sections; current != NULL; current = current->next)
3847 if (current->reloc_count >= 0xffff || current->lineno_count >= 0xffff)
3849 struct internal_scnhdr scnhdr;
3853 internal_f.f_nscns++;
3854 strncpy (&(scnhdr.s_name[0]), current->name, 8);
3855 scnhdr.s_paddr = current->reloc_count;
3856 scnhdr.s_vaddr = current->lineno_count;
3858 scnhdr.s_scnptr = 0;
3859 scnhdr.s_relptr = current->rel_filepos;
3860 scnhdr.s_lnnoptr = current->line_filepos;
3861 scnhdr.s_nreloc = current->target_index;
3862 scnhdr.s_nlnno = current->target_index;
3863 scnhdr.s_flags = STYP_OVRFLO;
3864 amt = bfd_coff_scnhsz (abfd);
3865 if (coff_swap_scnhdr_out (abfd, &scnhdr, &buff) == 0
3866 || bfd_bwrite ((PTR) &buff, amt, abfd) != amt)
3873 /* OK, now set up the filehdr... */
3875 /* Don't include the internal abs section in the section count */
3877 /* We will NOT put a fucking timestamp in the header here. Every time you
3878 put it back, I will come in and take it out again. I'm sorry. This
3879 field does not belong here. We fill it with a 0 so it compares the
3880 same but is not a reasonable time. -- gnu@cygnus.com */
3881 internal_f.f_timdat = 0;
3882 internal_f.f_flags = 0;
3884 if (abfd->flags & EXEC_P)
3885 internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
3888 internal_f.f_opthdr = 0;
3891 if (xcoff_data (abfd)->full_aouthdr)
3892 internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
3894 internal_f.f_opthdr = SMALL_AOUTSZ;
3900 internal_f.f_flags |= F_RELFLG;
3902 internal_f.f_flags |= F_LNNO;
3903 if (abfd->flags & EXEC_P)
3904 internal_f.f_flags |= F_EXEC;
3905 #ifdef COFF_IMAGE_WITH_PE
3907 internal_f.f_flags |= IMAGE_FILE_DEBUG_STRIPPED;
3908 if (pe_data (abfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE)
3909 internal_f.f_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
3913 internal_f.f_flags |= IMAGE_FILE_32BIT_MACHINE;
3915 if (bfd_little_endian (abfd))
3916 internal_f.f_flags |= F_AR32WR;
3918 internal_f.f_flags |= F_AR32W;
3922 /* Target id is used in TI COFF v1 and later; COFF0 won't use this field,
3923 but it doesn't hurt to set it internally. */
3924 internal_f.f_target_id = TI_TARGET_ID;
3926 #ifdef TIC80_TARGET_ID
3927 internal_f.f_target_id = TIC80_TARGET_ID;
3930 /* FIXME, should do something about the other byte orders and
3934 if ((abfd->flags & DYNAMIC) != 0)
3935 internal_f.f_flags |= F_SHROBJ;
3936 if (bfd_get_section_by_name (abfd, _LOADER) != NULL)
3937 internal_f.f_flags |= F_DYNLOAD;
3940 memset (&internal_a, 0, sizeof internal_a);
3942 /* Set up architecture-dependent stuff. */
3944 unsigned int magic = 0;
3945 unsigned short flags = 0;
3947 coff_set_flags (abfd, &magic, &flags);
3948 internal_f.f_magic = magic;
3949 internal_f.f_flags |= flags;
3950 /* ...and the "opt"hdr... */
3953 #ifdef ULTRA3 /* NYU's machine */
3954 /* FIXME: This is a bogus check. I really want to see if there
3955 is a .shbss or a .shdata section, if so then set the magic
3956 number to indicate a shared data executable. */
3957 if (internal_f.f_nscns >= 7)
3958 internal_a.magic = SHMAGIC; /* Shared magic. */
3961 internal_a.magic = NMAGIC; /* Assume separate i/d. */
3962 #define __A_MAGIC_SET__
3964 #ifdef TICOFF_AOUT_MAGIC
3965 internal_a.magic = TICOFF_AOUT_MAGIC;
3966 #define __A_MAGIC_SET__
3969 internal_a.magic = TIC80_ARCH_MAGIC;
3970 #define __A_MAGIC_SET__
3973 /* FIXME: What are the a.out magic numbers for the i860? */
3974 internal_a.magic = 0;
3975 #define __A_MAGIC_SET__
3978 internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC);
3979 #define __A_MAGIC_SET__
3982 #define __A_MAGIC_SET__
3983 internal_a.magic = PAGEMAGICBCS;
3987 #define __A_MAGIC_SET__
3988 internal_a.magic = APOLLO_COFF_VERSION_NUMBER;
3991 #if defined(M68) || defined(WE32K) || defined(M68K)
3992 #define __A_MAGIC_SET__
3994 internal_a.magic = LYNXCOFFMAGIC;
3996 #if defined(TARG_AUX)
3997 internal_a.magic = (abfd->flags & D_PAGED ? PAGEMAGICPEXECPAGED :
3998 abfd->flags & WP_TEXT ? PAGEMAGICPEXECSWAPPED :
3999 PAGEMAGICEXECSWAPPED);
4001 #if defined (PAGEMAGICPEXECPAGED)
4002 internal_a.magic = PAGEMAGICPEXECPAGED;
4004 #endif /* TARG_AUX */
4006 #endif /* M68 || WE32K || M68K */
4009 #define __A_MAGIC_SET__
4010 internal_a.magic = ZMAGIC;
4014 #define __A_MAGIC_SET__
4015 internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
4018 #if defined MCORE_PE
4019 #define __A_MAGIC_SET__
4020 internal_a.magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
4024 #define __A_MAGIC_SET__
4026 internal_a.magic = LYNXCOFFMAGIC;
4028 internal_a.magic = ZMAGIC;
4033 #define __A_MAGIC_SET__
4034 internal_a.magic = ZMAGIC;
4038 #define __A_MAGIC_SET__
4040 internal_a.magic = LYNXCOFFMAGIC;
4045 #define __A_MAGIC_SET__
4046 internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC :
4047 (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC :
4048 RS6K_AOUTHDR_OMAGIC;
4051 #if defined(SH) && defined(COFF_WITH_PE)
4052 #define __A_MAGIC_SET__
4053 internal_a.magic = SH_PE_MAGIC;
4056 #if defined(MIPS) && defined(COFF_WITH_PE)
4057 #define __A_MAGIC_SET__
4058 internal_a.magic = MIPS_PE_MAGIC;
4062 #define __A_MAGIC_SET__
4063 internal_a.magic = NMAGIC; /* Assume separate i/d. */
4066 #ifndef __A_MAGIC_SET__
4067 #include "Your aouthdr magic number is not being set!"
4069 #undef __A_MAGIC_SET__
4073 /* FIXME: Does anybody ever set this to another value? */
4074 internal_a.vstamp = 0;
4076 /* Now should write relocs, strings, syms. */
4077 obj_sym_filepos (abfd) = sym_base;
4079 if (bfd_get_symcount (abfd) != 0)
4083 if (!coff_add_missing_symbols (abfd))
4086 if (!coff_renumber_symbols (abfd, &firstundef))
4088 coff_mangle_symbols (abfd);
4089 if (! coff_write_symbols (abfd))
4091 if (! coff_write_linenumbers (abfd))
4093 if (! coff_write_relocs (abfd, firstundef))
4096 #ifdef COFF_LONG_SECTION_NAMES
4097 else if (long_section_names && ! obj_coff_strings_written (abfd))
4099 /* If we have long section names we have to write out the string
4100 table even if there are no symbols. */
4101 if (! coff_write_symbols (abfd))
4105 #ifdef COFF_IMAGE_WITH_PE
4107 else if ((abfd->flags & EXEC_P) != 0)
4111 /* PowerPC PE appears to require that all executable files be
4112 rounded up to the page size. */
4115 (file_ptr) BFD_ALIGN (sym_base, COFF_PAGE_SIZE) - 1,
4117 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
4123 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
4124 backend linker, and obj_raw_syment_count is not valid until after
4125 coff_write_symbols is called. */
4126 if (obj_raw_syment_count (abfd) != 0)
4128 internal_f.f_symptr = sym_base;
4130 /* AIX appears to require that F_RELFLG not be set if there are
4131 local symbols but no relocations. */
4132 internal_f.f_flags &=~ F_RELFLG;
4137 if (long_section_names)
4138 internal_f.f_symptr = sym_base;
4140 internal_f.f_symptr = 0;
4141 internal_f.f_flags |= F_LSYMS;
4146 internal_a.tsize = text_sec->size;
4147 internal_a.text_start = internal_a.tsize ? text_sec->vma : 0;
4151 internal_a.dsize = data_sec->size;
4152 internal_a.data_start = internal_a.dsize ? data_sec->vma : 0;
4156 internal_a.bsize = bss_sec->size;
4157 if (internal_a.bsize && bss_sec->vma < internal_a.data_start)
4158 internal_a.data_start = bss_sec->vma;
4161 internal_a.entry = bfd_get_start_address (abfd);
4162 internal_f.f_nsyms = obj_raw_syment_count (abfd);
4165 if (xcoff_data (abfd)->full_aouthdr)
4168 asection *loader_sec;
4170 internal_a.vstamp = 1;
4172 internal_a.o_snentry = xcoff_data (abfd)->snentry;
4173 if (internal_a.o_snentry == 0)
4174 internal_a.entry = (bfd_vma) -1;
4176 if (text_sec != NULL)
4178 internal_a.o_sntext = text_sec->target_index;
4179 internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec);
4183 internal_a.o_sntext = 0;
4184 internal_a.o_algntext = 0;
4186 if (data_sec != NULL)
4188 internal_a.o_sndata = data_sec->target_index;
4189 internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec);
4193 internal_a.o_sndata = 0;
4194 internal_a.o_algndata = 0;
4196 loader_sec = bfd_get_section_by_name (abfd, ".loader");
4197 if (loader_sec != NULL)
4198 internal_a.o_snloader = loader_sec->target_index;
4200 internal_a.o_snloader = 0;
4201 if (bss_sec != NULL)
4202 internal_a.o_snbss = bss_sec->target_index;
4204 internal_a.o_snbss = 0;
4206 toc = xcoff_data (abfd)->toc;
4207 internal_a.o_toc = toc;
4208 internal_a.o_sntoc = xcoff_data (abfd)->sntoc;
4210 internal_a.o_modtype = xcoff_data (abfd)->modtype;
4211 if (xcoff_data (abfd)->cputype != -1)
4212 internal_a.o_cputype = xcoff_data (abfd)->cputype;
4215 switch (bfd_get_arch (abfd))
4217 case bfd_arch_rs6000:
4218 internal_a.o_cputype = 4;
4220 case bfd_arch_powerpc:
4221 if (bfd_get_mach (abfd) == bfd_mach_ppc)
4222 internal_a.o_cputype = 3;
4224 internal_a.o_cputype = 1;
4230 internal_a.o_maxstack = xcoff_data (abfd)->maxstack;
4231 internal_a.o_maxdata = xcoff_data (abfd)->maxdata;
4235 /* now write them */
4236 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
4241 bfd_size_type amount = bfd_coff_filhsz (abfd);
4243 buff = bfd_malloc (amount);
4247 bfd_coff_swap_filehdr_out (abfd, (PTR) &internal_f, (PTR) buff);
4248 amount = bfd_bwrite ((PTR) buff, amount, abfd);
4252 if (amount != bfd_coff_filhsz (abfd))
4256 if (abfd->flags & EXEC_P)
4258 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
4259 include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */
4261 bfd_size_type amount = bfd_coff_aoutsz (abfd);
4263 buff = bfd_malloc (amount);
4267 coff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) buff);
4268 amount = bfd_bwrite ((PTR) buff, amount, abfd);
4272 if (amount != bfd_coff_aoutsz (abfd))
4275 #ifdef COFF_IMAGE_WITH_PE
4276 if (! coff_apply_checksum (abfd))
4286 /* XCOFF seems to always write at least a small a.out header. */
4287 coff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) &buff);
4288 if (xcoff_data (abfd)->full_aouthdr)
4289 size = bfd_coff_aoutsz (abfd);
4291 size = SMALL_AOUTSZ;
4292 if (bfd_bwrite ((PTR) &buff, (bfd_size_type) size, abfd) != size)
4301 coff_set_section_contents (abfd, section, location, offset, count)
4306 bfd_size_type count;
4308 if (! abfd->output_has_begun) /* Set by bfd.c handler. */
4310 if (! coff_compute_section_file_positions (abfd))
4314 #if defined(_LIB) && !defined(TARG_AUX)
4316 /* The physical address field of a .lib section is used to hold the
4317 number of shared libraries in the section. This code counts the
4318 number of sections being written, and increments the lma field
4321 I have found no documentation on the contents of this section.
4322 Experimentation indicates that the section contains zero or more
4323 records, each of which has the following structure:
4325 - a (four byte) word holding the length of this record, in words,
4326 - a word that always seems to be set to "2",
4327 - the path to a shared library, null-terminated and then padded
4328 to a whole word boundary.
4330 bfd_assert calls have been added to alert if an attempt is made
4331 to write a section which doesn't follow these assumptions. The
4332 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
4333 <robertl@arnet.com> (Thanks!).
4335 Gvran Uddeborg <gvran@uddeborg.pp.se>. */
4337 if (strcmp (section->name, _LIB) == 0)
4339 bfd_byte *rec, *recend;
4341 rec = (bfd_byte *) location;
4342 recend = rec + count;
4343 while (rec < recend)
4346 rec += bfd_get_32 (abfd, rec) * 4;
4349 BFD_ASSERT (rec == recend);
4354 /* Don't write out bss sections - one way to do this is to
4355 see if the filepos has not been set. */
4356 if (section->filepos == 0)
4359 if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0)
4365 return bfd_bwrite (location, count, abfd) == count;
4369 coff_close_and_cleanup (abfd)
4372 if (!bfd_read_p (abfd))
4373 switch (abfd->format)
4376 if (!_bfd_write_archive_contents (abfd))
4380 if (!coff_write_object_contents (abfd))
4384 bfd_set_error (bfd_error_invalid_operation);
4388 /* We depend on bfd_close to free all the memory on the objalloc. */
4395 buy_and_read (abfd, where, size)
4400 PTR area = (PTR) bfd_alloc (abfd, size);
4403 if (bfd_seek (abfd, where, SEEK_SET) != 0
4404 || bfd_bread (area, size, abfd) != size)
4407 } /* buy_and_read() */
4413 Creating the linenumber table is done by reading in the entire
4414 coff linenumber table, and creating another table for internal use.
4416 A coff linenumber table is structured so that each function
4417 is marked as having a line number of 0. Each line within the
4418 function is an offset from the first line in the function. The
4419 base of the line number information for the table is stored in
4420 the symbol associated with the function.
4422 Note: The PE format uses line number 0 for a flag indicating a
4425 The information is copied from the external to the internal
4426 table, and each symbol which marks a function is marked by
4429 How does this work ?
4434 coff_slurp_line_table (abfd, asect)
4438 LINENO *native_lineno;
4439 alent *lineno_cache;
4442 BFD_ASSERT (asect->lineno == (alent *) NULL);
4444 amt = (bfd_size_type) bfd_coff_linesz (abfd) * asect->lineno_count;
4445 native_lineno = (LINENO *) buy_and_read (abfd, asect->line_filepos, amt);
4446 if (native_lineno == NULL)
4448 (*_bfd_error_handler)
4449 (_("%B: warning: line number table read failed"), abfd);
4452 amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent);
4453 lineno_cache = (alent *) bfd_alloc (abfd, amt);
4454 if (lineno_cache == NULL)
4458 unsigned int counter = 0;
4459 alent *cache_ptr = lineno_cache;
4460 LINENO *src = native_lineno;
4462 while (counter < asect->lineno_count)
4464 struct internal_lineno dst;
4466 bfd_coff_swap_lineno_in (abfd, src, &dst);
4467 cache_ptr->line_number = dst.l_lnno;
4469 if (cache_ptr->line_number == 0)
4472 bfd_signed_vma symndx;
4473 coff_symbol_type *sym;
4476 symndx = dst.l_addr.l_symndx;
4478 || (bfd_vma) symndx >= obj_raw_syment_count (abfd))
4480 (*_bfd_error_handler)
4481 (_("%B: warning: illegal symbol index %ld in line numbers"),
4482 abfd, dst.l_addr.l_symndx);
4486 /* FIXME: We should not be casting between ints and
4487 pointers like this. */
4488 sym = ((coff_symbol_type *)
4489 ((symndx + obj_raw_syments (abfd))
4490 ->u.syment._n._n_n._n_zeroes));
4491 cache_ptr->u.sym = (asymbol *) sym;
4492 if (sym->lineno != NULL && ! warned)
4494 (*_bfd_error_handler)
4495 (_("%B: warning: duplicate line number information for `%s'"),
4496 abfd, bfd_asymbol_name (&sym->symbol));
4498 sym->lineno = cache_ptr;
4502 cache_ptr->u.offset = dst.l_addr.l_paddr
4503 - bfd_section_vma (abfd, asect);
4504 } /* If no linenumber expect a symbol index */
4510 cache_ptr->line_number = 0;
4513 asect->lineno = lineno_cache;
4514 /* FIXME, free native_lineno here, or use alloca or something. */
4518 /* Slurp in the symbol table, converting it to generic form. Note
4519 that if coff_relocate_section is defined, the linker will read
4520 symbols via coff_link_add_symbols, rather than via this routine. */
4523 coff_slurp_symbol_table (abfd)
4526 combined_entry_type *native_symbols;
4527 coff_symbol_type *cached_area;
4528 unsigned int *table_ptr;
4530 unsigned int number_of_symbols = 0;
4532 if (obj_symbols (abfd))
4535 /* Read in the symbol table. */
4536 if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL)
4539 /* Allocate enough room for all the symbols in cached form. */
4540 amt = obj_raw_syment_count (abfd);
4541 amt *= sizeof (coff_symbol_type);
4542 cached_area = (coff_symbol_type *) bfd_alloc (abfd, amt);
4543 if (cached_area == NULL)
4546 amt = obj_raw_syment_count (abfd);
4547 amt *= sizeof (unsigned int);
4548 table_ptr = (unsigned int *) bfd_alloc (abfd, amt);
4550 if (table_ptr == NULL)
4554 coff_symbol_type *dst = cached_area;
4555 unsigned int last_native_index = obj_raw_syment_count (abfd);
4556 unsigned int this_index = 0;
4558 while (this_index < last_native_index)
4560 combined_entry_type *src = native_symbols + this_index;
4561 table_ptr[this_index] = number_of_symbols;
4562 dst->symbol.the_bfd = abfd;
4564 dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset);
4565 /* We use the native name field to point to the cached field. */
4566 src->u.syment._n._n_n._n_zeroes = (long) dst;
4567 dst->symbol.section = coff_section_from_bfd_index (abfd,
4568 src->u.syment.n_scnum);
4569 dst->symbol.flags = 0;
4570 dst->done_lineno = FALSE;
4572 switch (src->u.syment.n_sclass)
4577 dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma;
4578 dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
4579 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4581 /* Fall through to next case. */
4588 case C_THUMBEXTFUNC:
4594 case C_SYSTEM: /* System Wide variable. */
4597 /* In PE, 0x68 (104) denotes a section symbol. */
4599 /* In PE, 0x69 (105) denotes a weak external symbol. */
4602 switch (coff_classify_symbol (abfd, &src->u.syment))
4604 case COFF_SYMBOL_GLOBAL:
4605 dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
4606 #if defined COFF_WITH_PE
4607 /* PE sets the symbol to a value relative to the
4608 start of the section. */
4609 dst->symbol.value = src->u.syment.n_value;
4611 dst->symbol.value = (src->u.syment.n_value
4612 - dst->symbol.section->vma);
4614 if (ISFCN ((src->u.syment.n_type)))
4616 /* A function ext does not go at the end of a
4618 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4622 case COFF_SYMBOL_COMMON:
4623 dst->symbol.section = bfd_com_section_ptr;
4624 dst->symbol.value = src->u.syment.n_value;
4627 case COFF_SYMBOL_UNDEFINED:
4628 dst->symbol.section = bfd_und_section_ptr;
4629 dst->symbol.value = 0;
4632 case COFF_SYMBOL_PE_SECTION:
4633 dst->symbol.flags |= BSF_EXPORT | BSF_SECTION_SYM;
4634 dst->symbol.value = 0;
4637 case COFF_SYMBOL_LOCAL:
4638 dst->symbol.flags = BSF_LOCAL;
4639 #if defined COFF_WITH_PE
4640 /* PE sets the symbol to a value relative to the
4641 start of the section. */
4642 dst->symbol.value = src->u.syment.n_value;
4644 dst->symbol.value = (src->u.syment.n_value
4645 - dst->symbol.section->vma);
4647 if (ISFCN ((src->u.syment.n_type)))
4648 dst->symbol.flags |= BSF_NOT_AT_END | BSF_FUNCTION;
4653 /* A symbol with a csect entry should not go at the end. */
4654 if (src->u.syment.n_numaux > 0)
4655 dst->symbol.flags |= BSF_NOT_AT_END;
4659 if (src->u.syment.n_sclass == C_NT_WEAK)
4660 dst->symbol.flags |= BSF_WEAK;
4662 if (src->u.syment.n_sclass == C_SECTION
4663 && src->u.syment.n_scnum > 0)
4664 dst->symbol.flags = BSF_LOCAL;
4666 if (src->u.syment.n_sclass == C_WEAKEXT)
4667 dst->symbol.flags |= BSF_WEAK;
4671 case C_STAT: /* Static. */
4673 case C_LEAFSTAT: /* Static leaf procedure. */
4676 case C_THUMBSTAT: /* Thumb static. */
4677 case C_THUMBLABEL: /* Thumb label. */
4678 case C_THUMBSTATFUNC:/* Thumb static function. */
4680 case C_LABEL: /* Label. */
4681 if (src->u.syment.n_scnum == N_DEBUG)
4682 dst->symbol.flags = BSF_DEBUGGING;
4684 dst->symbol.flags = BSF_LOCAL;
4686 /* Base the value as an index from the base of the
4687 section, if there is one. */
4688 if (dst->symbol.section)
4690 #if defined COFF_WITH_PE
4691 /* PE sets the symbol to a value relative to the
4692 start of the section. */
4693 dst->symbol.value = src->u.syment.n_value;
4695 dst->symbol.value = (src->u.syment.n_value
4696 - dst->symbol.section->vma);
4700 dst->symbol.value = src->u.syment.n_value;
4703 case C_MOS: /* Member of structure. */
4704 case C_EOS: /* End of structure. */
4705 #ifdef NOTDEF /* C_AUTOARG has the same value. */
4707 case C_GLBLREG: /* A29k-specific storage class. */
4710 case C_REGPARM: /* Register parameter. */
4711 case C_REG: /* register variable. */
4712 /* C_AUTOARG conflicts with TI COFF C_UEXT. */
4713 #if !defined (TIC80COFF) && !defined (TICOFF)
4715 case C_AUTOARG: /* 960-specific storage class. */
4718 case C_TPDEF: /* Type definition. */
4720 case C_AUTO: /* Automatic variable. */
4721 case C_FIELD: /* Bit field. */
4722 case C_ENTAG: /* Enumeration tag. */
4723 case C_MOE: /* Member of enumeration. */
4724 case C_MOU: /* Member of union. */
4725 case C_UNTAG: /* Union tag. */
4726 dst->symbol.flags = BSF_DEBUGGING;
4727 dst->symbol.value = (src->u.syment.n_value);
4730 case C_FILE: /* File name. */
4731 case C_STRTAG: /* Structure tag. */
4748 dst->symbol.flags = BSF_DEBUGGING;
4749 dst->symbol.value = (src->u.syment.n_value);
4753 case C_BINCL: /* Beginning of include file. */
4754 case C_EINCL: /* Ending of include file. */
4755 /* The value is actually a pointer into the line numbers
4756 of the file. We locate the line number entry, and
4757 set the section to the section which contains it, and
4758 the value to the index in that section. */
4762 dst->symbol.flags = BSF_DEBUGGING;
4763 for (sec = abfd->sections; sec != NULL; sec = sec->next)
4764 if (sec->line_filepos <= (file_ptr) src->u.syment.n_value
4765 && ((file_ptr) (sec->line_filepos
4766 + sec->lineno_count * bfd_coff_linesz (abfd))
4767 > (file_ptr) src->u.syment.n_value))
4770 dst->symbol.value = 0;
4773 dst->symbol.section = sec;
4774 dst->symbol.value = ((src->u.syment.n_value
4775 - sec->line_filepos)
4776 / bfd_coff_linesz (abfd));
4783 dst->symbol.flags = BSF_DEBUGGING;
4785 /* The value is actually a symbol index. Save a pointer
4786 to the symbol instead of the index. FIXME: This
4787 should use a union. */
4788 src->u.syment.n_value =
4789 (long) (native_symbols + src->u.syment.n_value);
4790 dst->symbol.value = src->u.syment.n_value;
4795 case C_BLOCK: /* ".bb" or ".eb". */
4796 case C_FCN: /* ".bf" or ".ef" (or PE ".lf"). */
4797 case C_EFCN: /* Physical end of function. */
4798 #if defined COFF_WITH_PE
4799 /* PE sets the symbol to a value relative to the start
4801 dst->symbol.value = src->u.syment.n_value;
4802 if (strcmp (dst->symbol.name, ".bf") != 0)
4804 /* PE uses funny values for .ef and .lf; don't
4806 dst->symbol.flags = BSF_DEBUGGING;
4809 dst->symbol.flags = BSF_DEBUGGING | BSF_DEBUGGING_RELOC;
4811 /* Base the value as an index from the base of the
4813 dst->symbol.flags = BSF_LOCAL;
4814 dst->symbol.value = (src->u.syment.n_value
4815 - dst->symbol.section->vma);
4819 case C_STATLAB: /* Static load time label. */
4820 dst->symbol.value = src->u.syment.n_value;
4821 dst->symbol.flags = BSF_GLOBAL;
4825 /* PE DLLs sometimes have zeroed out symbols for some
4826 reason. Just ignore them without a warning. */
4827 if (src->u.syment.n_type == 0
4828 && src->u.syment.n_value == 0
4829 && src->u.syment.n_scnum == 0)
4832 case C_EXTDEF: /* External definition. */
4833 case C_ULABEL: /* Undefined label. */
4834 case C_USTATIC: /* Undefined static. */
4835 #ifndef COFF_WITH_PE
4836 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4837 class to represent a section symbol. */
4838 case C_LINE: /* line # reformatted as symbol table entry. */
4839 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4840 case C_ALIAS: /* Duplicate tag. */
4842 /* New storage classes for TI COFF. */
4843 #if defined(TIC80COFF) || defined(TICOFF)
4844 case C_UEXT: /* Tentative external definition. */
4846 case C_EXTLAB: /* External load time label. */
4847 case C_HIDDEN: /* Ext symbol in dmert public lib. */
4849 (*_bfd_error_handler)
4850 (_("%B: Unrecognized storage class %d for %s symbol `%s'"),
4851 abfd, src->u.syment.n_sclass,
4852 dst->symbol.section->name, dst->symbol.name);
4853 dst->symbol.flags = BSF_DEBUGGING;
4854 dst->symbol.value = (src->u.syment.n_value);
4858 /* BFD_ASSERT(dst->symbol.flags != 0);*/
4862 dst->symbol.udata.i = 0;
4863 dst->lineno = (alent *) NULL;
4864 this_index += (src->u.syment.n_numaux) + 1;
4866 number_of_symbols++;
4870 obj_symbols (abfd) = cached_area;
4871 obj_raw_syments (abfd) = native_symbols;
4873 bfd_get_symcount (abfd) = number_of_symbols;
4874 obj_convert (abfd) = table_ptr;
4875 /* Slurp the line tables for each section too. */
4882 coff_slurp_line_table (abfd, p);
4888 } /* coff_slurp_symbol_table() */
4890 /* Classify a COFF symbol. A couple of targets have globally visible
4891 symbols which are not class C_EXT, and this handles those. It also
4892 recognizes some special PE cases. */
4894 static enum coff_symbol_classification
4895 coff_classify_symbol (abfd, syment)
4897 struct internal_syment *syment;
4899 /* FIXME: This partially duplicates the switch in
4900 coff_slurp_symbol_table. */
4901 switch (syment->n_sclass)
4910 case C_THUMBEXTFUNC:
4918 if (syment->n_scnum == 0)
4920 if (syment->n_value == 0)
4921 return COFF_SYMBOL_UNDEFINED;
4923 return COFF_SYMBOL_COMMON;
4925 return COFF_SYMBOL_GLOBAL;
4932 if (syment->n_sclass == C_STAT)
4934 if (syment->n_scnum == 0)
4936 /* The Microsoft compiler sometimes generates these if a
4937 small static function is inlined every time it is used.
4938 The function is discarded, but the symbol table entry
4940 return COFF_SYMBOL_LOCAL;
4943 #ifdef STRICT_PE_FORMAT
4944 /* This is correct for Microsoft generated objects, but it
4945 breaks gas generated objects. */
4947 if (syment->n_value == 0)
4950 char buf[SYMNMLEN + 1];
4952 sec = coff_section_from_bfd_index (abfd, syment->n_scnum);
4954 && (strcmp (bfd_get_section_name (abfd, sec),
4955 _bfd_coff_internal_syment_name (abfd, syment, buf))
4957 return COFF_SYMBOL_PE_SECTION;
4961 return COFF_SYMBOL_LOCAL;
4964 if (syment->n_sclass == C_SECTION)
4966 /* In some cases in a DLL generated by the Microsoft linker, the
4967 n_value field will contain garbage. FIXME: This should
4968 probably be handled by the swapping function instead. */
4969 syment->n_value = 0;
4970 if (syment->n_scnum == 0)
4971 return COFF_SYMBOL_UNDEFINED;
4972 return COFF_SYMBOL_PE_SECTION;
4974 #endif /* COFF_WITH_PE */
4976 /* If it is not a global symbol, we presume it is a local symbol. */
4978 if (syment->n_scnum == 0)
4980 char buf[SYMNMLEN + 1];
4982 (*_bfd_error_handler)
4983 (_("warning: %B: local symbol `%s' has no section"),
4984 abfd, _bfd_coff_internal_syment_name (abfd, syment, buf));
4987 return COFF_SYMBOL_LOCAL;
4994 Coff relocations are easily transformed into the internal BFD form
4997 Reading a coff relocation table is done in the following stages:
4999 o Read the entire coff relocation table into memory.
5001 o Process each relocation in turn; first swap it from the
5002 external to the internal form.
5004 o Turn the symbol referenced in the relocation's symbol index
5005 into a pointer into the canonical symbol table.
5006 This table is the same as the one returned by a call to
5007 @code{bfd_canonicalize_symtab}. The back end will call that
5008 routine and save the result if a canonicalization hasn't been done.
5010 o The reloc index is turned into a pointer to a howto
5011 structure, in a back end specific way. For instance, the 386
5012 and 960 use the @code{r_type} to directly produce an index
5013 into a howto table vector; the 88k subtracts a number from the
5014 @code{r_type} field and creates an addend field.
5019 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
5021 coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \
5022 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
5023 coffsym = (obj_symbols (abfd) \
5024 + (cache_ptr->sym_ptr_ptr - symbols)); \
5026 coffsym = coff_symbol_from (abfd, ptr); \
5027 if (coffsym != (coff_symbol_type *) NULL \
5028 && coffsym->native->u.syment.n_scnum == 0) \
5029 cache_ptr->addend = 0; \
5030 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
5031 && ptr->section != (asection *) NULL) \
5032 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
5034 cache_ptr->addend = 0; \
5039 coff_slurp_reloc_table (abfd, asect, symbols)
5044 RELOC *native_relocs;
5045 arelent *reloc_cache;
5050 if (asect->relocation)
5052 if (asect->reloc_count == 0)
5054 if (asect->flags & SEC_CONSTRUCTOR)
5056 if (!coff_slurp_symbol_table (abfd))
5058 amt = (bfd_size_type) bfd_coff_relsz (abfd) * asect->reloc_count;
5059 native_relocs = (RELOC *) buy_and_read (abfd, asect->rel_filepos, amt);
5060 amt = (bfd_size_type) asect->reloc_count * sizeof (arelent);
5061 reloc_cache = (arelent *) bfd_alloc (abfd, amt);
5063 if (reloc_cache == NULL)
5066 for (idx = 0; idx < asect->reloc_count; idx++)
5068 struct internal_reloc dst;
5069 struct external_reloc *src;
5070 #ifndef RELOC_PROCESSING
5074 cache_ptr = reloc_cache + idx;
5075 src = native_relocs + idx;
5077 coff_swap_reloc_in (abfd, src, &dst);
5079 #ifdef RELOC_PROCESSING
5080 RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect);
5082 cache_ptr->address = dst.r_vaddr;
5084 if (dst.r_symndx != -1)
5086 if (dst.r_symndx < 0 || dst.r_symndx >= obj_conv_table_size (abfd))
5088 (*_bfd_error_handler)
5089 (_("%B: warning: illegal symbol index %ld in relocs"),
5090 abfd, dst.r_symndx);
5091 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
5096 cache_ptr->sym_ptr_ptr = (symbols
5097 + obj_convert (abfd)[dst.r_symndx]);
5098 ptr = *(cache_ptr->sym_ptr_ptr);
5103 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
5107 /* The symbols definitions that we have read in have been
5108 relocated as if their sections started at 0. But the offsets
5109 refering to the symbols in the raw data have not been
5110 modified, so we have to have a negative addend to compensate.
5112 Note that symbols which used to be common must be left alone. */
5114 /* Calculate any reloc addend by looking at the symbol. */
5115 CALC_ADDEND (abfd, ptr, dst, cache_ptr);
5117 cache_ptr->address -= asect->vma;
5118 /* !! cache_ptr->section = (asection *) NULL;*/
5120 /* Fill in the cache_ptr->howto field from dst.r_type. */
5121 RTYPE2HOWTO (cache_ptr, &dst);
5122 #endif /* RELOC_PROCESSING */
5124 if (cache_ptr->howto == NULL)
5126 (*_bfd_error_handler)
5127 (_("%B: illegal relocation type %d at address 0x%lx"),
5128 abfd, dst.r_type, (long) dst.r_vaddr);
5129 bfd_set_error (bfd_error_bad_value);
5134 asect->relocation = reloc_cache;
5138 #ifndef coff_rtype_to_howto
5141 /* Get the howto structure for a reloc. This is only used if the file
5142 including this one defines coff_relocate_section to be
5143 _bfd_coff_generic_relocate_section, so it is OK if it does not
5144 always work. It is the responsibility of the including file to
5145 make sure it is reasonable if it is needed. */
5147 static reloc_howto_type *coff_rtype_to_howto
5148 PARAMS ((bfd *, asection *, struct internal_reloc *,
5149 struct coff_link_hash_entry *, struct internal_syment *,
5152 static reloc_howto_type *
5153 coff_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
5154 bfd *abfd ATTRIBUTE_UNUSED;
5155 asection *sec ATTRIBUTE_UNUSED;
5156 struct internal_reloc *rel;
5157 struct coff_link_hash_entry *h ATTRIBUTE_UNUSED;
5158 struct internal_syment *sym ATTRIBUTE_UNUSED;
5159 bfd_vma *addendp ATTRIBUTE_UNUSED;
5163 RTYPE2HOWTO (&genrel, rel);
5164 return genrel.howto;
5167 #else /* ! defined (RTYPE2HOWTO) */
5169 #define coff_rtype_to_howto NULL
5171 #endif /* ! defined (RTYPE2HOWTO) */
5172 #endif /* ! defined (coff_rtype_to_howto) */
5174 /* This is stupid. This function should be a boolean predicate. */
5176 coff_canonicalize_reloc (abfd, section, relptr, symbols)
5182 arelent *tblptr = section->relocation;
5183 unsigned int count = 0;
5185 if (section->flags & SEC_CONSTRUCTOR)
5187 /* This section has relocs made up by us, they are not in the
5188 file, so take them out of their chain and place them into
5189 the data area provided. */
5190 arelent_chain *chain = section->constructor_chain;
5192 for (count = 0; count < section->reloc_count; count++)
5194 *relptr++ = &chain->relent;
5195 chain = chain->next;
5200 if (! coff_slurp_reloc_table (abfd, section, symbols))
5203 tblptr = section->relocation;
5205 for (; count++ < section->reloc_count;)
5206 *relptr++ = tblptr++;
5209 return section->reloc_count;
5214 coff_sym_filepos (abfd)
5217 return obj_sym_filepos (abfd);
5221 #ifndef coff_reloc16_estimate
5222 #define coff_reloc16_estimate dummy_reloc16_estimate
5224 static int dummy_reloc16_estimate
5225 PARAMS ((bfd *, asection *, arelent *, unsigned int,
5226 struct bfd_link_info *));
5229 dummy_reloc16_estimate (abfd, input_section, reloc, shrink, link_info)
5230 bfd *abfd ATTRIBUTE_UNUSED;
5231 asection *input_section ATTRIBUTE_UNUSED;
5232 arelent *reloc ATTRIBUTE_UNUSED;
5233 unsigned int shrink ATTRIBUTE_UNUSED;
5234 struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
5242 #ifndef coff_reloc16_extra_cases
5244 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
5246 /* This works even if abort is not declared in any header file. */
5248 static void dummy_reloc16_extra_cases
5249 PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
5250 bfd_byte *, unsigned int *, unsigned int *));
5253 dummy_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr,
5255 bfd *abfd ATTRIBUTE_UNUSED;
5256 struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
5257 struct bfd_link_order *link_order ATTRIBUTE_UNUSED;
5258 arelent *reloc ATTRIBUTE_UNUSED;
5259 bfd_byte *data ATTRIBUTE_UNUSED;
5260 unsigned int *src_ptr ATTRIBUTE_UNUSED;
5261 unsigned int *dst_ptr ATTRIBUTE_UNUSED;
5267 #ifndef coff_bfd_link_hash_table_free
5268 #define coff_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
5271 /* If coff_relocate_section is defined, we can use the optimized COFF
5272 backend linker. Otherwise we must continue to use the old linker. */
5273 #ifdef coff_relocate_section
5274 #ifndef coff_bfd_link_hash_table_create
5275 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
5277 #ifndef coff_bfd_link_add_symbols
5278 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
5280 #ifndef coff_bfd_final_link
5281 #define coff_bfd_final_link _bfd_coff_final_link
5283 #else /* ! defined (coff_relocate_section) */
5284 #define coff_relocate_section NULL
5285 #ifndef coff_bfd_link_hash_table_create
5286 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
5288 #ifndef coff_bfd_link_add_symbols
5289 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
5291 #define coff_bfd_final_link _bfd_generic_final_link
5292 #endif /* ! defined (coff_relocate_section) */
5294 #define coff_bfd_link_just_syms _bfd_generic_link_just_syms
5295 #define coff_bfd_link_split_section _bfd_generic_link_split_section
5297 #ifndef coff_start_final_link
5298 #define coff_start_final_link NULL
5301 #ifndef coff_adjust_symndx
5302 #define coff_adjust_symndx NULL
5305 #ifndef coff_link_add_one_symbol
5306 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
5309 #ifndef coff_link_output_has_begun
5311 static bfd_boolean coff_link_output_has_begun
5312 PARAMS ((bfd *, struct coff_final_link_info *));
5315 coff_link_output_has_begun (abfd, info)
5317 struct coff_final_link_info * info ATTRIBUTE_UNUSED;
5319 return abfd->output_has_begun;
5323 #ifndef coff_final_link_postscript
5325 static bfd_boolean coff_final_link_postscript
5326 PARAMS ((bfd *, struct coff_final_link_info *));
5329 coff_final_link_postscript (abfd, pfinfo)
5330 bfd * abfd ATTRIBUTE_UNUSED;
5331 struct coff_final_link_info * pfinfo ATTRIBUTE_UNUSED;
5337 #ifndef coff_SWAP_aux_in
5338 #define coff_SWAP_aux_in coff_swap_aux_in
5340 #ifndef coff_SWAP_sym_in
5341 #define coff_SWAP_sym_in coff_swap_sym_in
5343 #ifndef coff_SWAP_lineno_in
5344 #define coff_SWAP_lineno_in coff_swap_lineno_in
5346 #ifndef coff_SWAP_aux_out
5347 #define coff_SWAP_aux_out coff_swap_aux_out
5349 #ifndef coff_SWAP_sym_out
5350 #define coff_SWAP_sym_out coff_swap_sym_out
5352 #ifndef coff_SWAP_lineno_out
5353 #define coff_SWAP_lineno_out coff_swap_lineno_out
5355 #ifndef coff_SWAP_reloc_out
5356 #define coff_SWAP_reloc_out coff_swap_reloc_out
5358 #ifndef coff_SWAP_filehdr_out
5359 #define coff_SWAP_filehdr_out coff_swap_filehdr_out
5361 #ifndef coff_SWAP_aouthdr_out
5362 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
5364 #ifndef coff_SWAP_scnhdr_out
5365 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
5367 #ifndef coff_SWAP_reloc_in
5368 #define coff_SWAP_reloc_in coff_swap_reloc_in
5370 #ifndef coff_SWAP_filehdr_in
5371 #define coff_SWAP_filehdr_in coff_swap_filehdr_in
5373 #ifndef coff_SWAP_aouthdr_in
5374 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
5376 #ifndef coff_SWAP_scnhdr_in
5377 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
5380 static const bfd_coff_backend_data bfd_coff_std_swap_table =
5382 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5383 coff_SWAP_aux_out, coff_SWAP_sym_out,
5384 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5385 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5386 coff_SWAP_scnhdr_out,
5387 FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN,
5388 #ifdef COFF_LONG_FILENAMES
5393 #ifdef COFF_LONG_SECTION_NAMES
5398 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5399 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5404 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5409 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5410 coff_SWAP_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook,
5411 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5412 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5413 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5414 coff_classify_symbol, coff_compute_section_file_positions,
5415 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5416 coff_adjust_symndx, coff_link_add_one_symbol,
5417 coff_link_output_has_begun, coff_final_link_postscript
5421 /* COFF0 differs in file/section header size and relocation entry size. */
5422 static const bfd_coff_backend_data ticoff0_swap_table =
5424 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5425 coff_SWAP_aux_out, coff_SWAP_sym_out,
5426 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5427 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5428 coff_SWAP_scnhdr_out,
5429 FILHSZ_V0, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ_V0, LINESZ, FILNMLEN,
5430 #ifdef COFF_LONG_FILENAMES
5435 #ifdef COFF_LONG_SECTION_NAMES
5440 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5441 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5446 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5451 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5452 coff_SWAP_reloc_in, ticoff0_bad_format_hook, coff_set_arch_mach_hook,
5453 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5454 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5455 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5456 coff_classify_symbol, coff_compute_section_file_positions,
5457 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5458 coff_adjust_symndx, coff_link_add_one_symbol,
5459 coff_link_output_has_begun, coff_final_link_postscript
5464 /* COFF1 differs in section header size. */
5465 static const bfd_coff_backend_data ticoff1_swap_table =
5467 coff_SWAP_aux_in, coff_SWAP_sym_in, coff_SWAP_lineno_in,
5468 coff_SWAP_aux_out, coff_SWAP_sym_out,
5469 coff_SWAP_lineno_out, coff_SWAP_reloc_out,
5470 coff_SWAP_filehdr_out, coff_SWAP_aouthdr_out,
5471 coff_SWAP_scnhdr_out,
5472 FILHSZ, AOUTSZ, SCNHSZ_V01, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN,
5473 #ifdef COFF_LONG_FILENAMES
5478 #ifdef COFF_LONG_SECTION_NAMES
5483 COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
5484 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5489 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5494 coff_SWAP_filehdr_in, coff_SWAP_aouthdr_in, coff_SWAP_scnhdr_in,
5495 coff_SWAP_reloc_in, ticoff1_bad_format_hook, coff_set_arch_mach_hook,
5496 coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
5497 coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
5498 coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
5499 coff_classify_symbol, coff_compute_section_file_positions,
5500 coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
5501 coff_adjust_symndx, coff_link_add_one_symbol,
5502 coff_link_output_has_begun, coff_final_link_postscript
5506 #ifndef coff_close_and_cleanup
5507 #define coff_close_and_cleanup _bfd_generic_close_and_cleanup
5510 #ifndef coff_bfd_free_cached_info
5511 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
5514 #ifndef coff_get_section_contents
5515 #define coff_get_section_contents _bfd_generic_get_section_contents
5518 #ifndef coff_bfd_copy_private_symbol_data
5519 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
5522 #ifndef coff_bfd_copy_private_header_data
5523 #define coff_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
5526 #ifndef coff_bfd_copy_private_section_data
5527 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
5530 #ifndef coff_bfd_copy_private_bfd_data
5531 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
5534 #ifndef coff_bfd_merge_private_bfd_data
5535 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
5538 #ifndef coff_bfd_set_private_flags
5539 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
5542 #ifndef coff_bfd_print_private_bfd_data
5543 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
5546 #ifndef coff_bfd_is_local_label_name
5547 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
5550 #ifndef coff_bfd_is_target_special_symbol
5551 #define coff_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
5554 #ifndef coff_read_minisymbols
5555 #define coff_read_minisymbols _bfd_generic_read_minisymbols
5558 #ifndef coff_minisymbol_to_symbol
5559 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
5562 /* The reloc lookup routine must be supplied by each individual COFF
5564 #ifndef coff_bfd_reloc_type_lookup
5565 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5568 #ifndef coff_bfd_get_relocated_section_contents
5569 #define coff_bfd_get_relocated_section_contents \
5570 bfd_generic_get_relocated_section_contents
5573 #ifndef coff_bfd_relax_section
5574 #define coff_bfd_relax_section bfd_generic_relax_section
5577 #ifndef coff_bfd_gc_sections
5578 #define coff_bfd_gc_sections bfd_generic_gc_sections
5581 #ifndef coff_bfd_merge_sections
5582 #define coff_bfd_merge_sections bfd_generic_merge_sections
5585 #ifndef coff_bfd_is_group_section
5586 #define coff_bfd_is_group_section bfd_generic_is_group_section
5589 #ifndef coff_bfd_discard_group
5590 #define coff_bfd_discard_group bfd_generic_discard_group
5593 #ifndef coff_section_already_linked
5594 #define coff_section_already_linked \
5595 _bfd_generic_section_already_linked
5598 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5599 const bfd_target VAR = \
5602 bfd_target_coff_flavour, \
5603 BFD_ENDIAN_BIG, /* data byte order is big */ \
5604 BFD_ENDIAN_BIG, /* header byte order is big */ \
5605 /* object flags */ \
5606 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5607 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5608 /* section flags */ \
5609 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5610 UNDER, /* leading symbol underscore */ \
5611 '/', /* ar_pad_char */ \
5612 15, /* ar_max_namelen */ \
5614 /* Data conversion functions. */ \
5615 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5616 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5617 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5619 /* Header conversion functions. */ \
5620 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5621 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5622 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5624 /* bfd_check_format */ \
5625 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5626 _bfd_dummy_target }, \
5627 /* bfd_set_format */ \
5628 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5629 /* bfd_write_contents */ \
5630 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5633 BFD_JUMP_TABLE_GENERIC (coff), \
5634 BFD_JUMP_TABLE_COPY (coff), \
5635 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5636 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5637 BFD_JUMP_TABLE_SYMBOLS (coff), \
5638 BFD_JUMP_TABLE_RELOCS (coff), \
5639 BFD_JUMP_TABLE_WRITE (coff), \
5640 BFD_JUMP_TABLE_LINK (coff), \
5641 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5648 #define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5649 const bfd_target VAR = \
5652 bfd_target_coff_flavour, \
5653 BFD_ENDIAN_LITTLE, /* data byte order is little */ \
5654 BFD_ENDIAN_BIG, /* header byte order is big */ \
5655 /* object flags */ \
5656 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5657 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5658 /* section flags */ \
5659 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5660 UNDER, /* leading symbol underscore */ \
5661 '/', /* ar_pad_char */ \
5662 15, /* ar_max_namelen */ \
5664 /* Data conversion functions. */ \
5665 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5666 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5667 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5669 /* Header conversion functions. */ \
5670 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5671 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5672 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5674 /* bfd_check_format */ \
5675 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5676 _bfd_dummy_target }, \
5677 /* bfd_set_format */ \
5678 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5679 /* bfd_write_contents */ \
5680 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5683 BFD_JUMP_TABLE_GENERIC (coff), \
5684 BFD_JUMP_TABLE_COPY (coff), \
5685 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5686 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5687 BFD_JUMP_TABLE_SYMBOLS (coff), \
5688 BFD_JUMP_TABLE_RELOCS (coff), \
5689 BFD_JUMP_TABLE_WRITE (coff), \
5690 BFD_JUMP_TABLE_LINK (coff), \
5691 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5698 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5699 const bfd_target VAR = \
5702 bfd_target_coff_flavour, \
5703 BFD_ENDIAN_LITTLE, /* data byte order is little */ \
5704 BFD_ENDIAN_LITTLE, /* header byte order is little */ \
5705 /* object flags */ \
5706 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5707 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5708 /* section flags */ \
5709 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5710 UNDER, /* leading symbol underscore */ \
5711 '/', /* ar_pad_char */ \
5712 15, /* ar_max_namelen */ \
5714 /* Data conversion functions. */ \
5715 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5716 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5717 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5718 /* Header conversion functions. */ \
5719 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5720 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5721 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5722 /* bfd_check_format */ \
5723 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, \
5724 _bfd_dummy_target }, \
5725 /* bfd_set_format */ \
5726 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
5727 /* bfd_write_contents */ \
5728 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, \
5731 BFD_JUMP_TABLE_GENERIC (coff), \
5732 BFD_JUMP_TABLE_COPY (coff), \
5733 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5734 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5735 BFD_JUMP_TABLE_SYMBOLS (coff), \
5736 BFD_JUMP_TABLE_RELOCS (coff), \
5737 BFD_JUMP_TABLE_WRITE (coff), \
5738 BFD_JUMP_TABLE_LINK (coff), \
5739 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \