1 /* Support for the generic parts of most COFF variants, for BFD.
2 Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999
3 Free Software Foundation, Inc.
4 Written by Cygnus Support.
6 This file is part of BFD, the Binary File Descriptor library.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
23 Most of this hacked by Steve Chamberlain,
31 BFD supports a number of different flavours of coff format.
32 The major differences between formats are the sizes and
33 alignments of fields in structures on disk, and the occasional
36 Coff in all its varieties is implemented with a few common
37 files and a number of implementation specific files. For
38 example, The 88k bcs coff format is implemented in the file
39 @file{coff-m88k.c}. This file @code{#include}s
40 @file{coff/m88k.h} which defines the external structure of the
41 coff format for the 88k, and @file{coff/internal.h} which
42 defines the internal structure. @file{coff-m88k.c} also
43 defines the relocations used by the 88k format
46 The Intel i960 processor version of coff is implemented in
47 @file{coff-i960.c}. This file has the same structure as
48 @file{coff-m88k.c}, except that it includes @file{coff/i960.h}
49 rather than @file{coff-m88k.h}.
52 Porting to a new version of coff
54 The recommended method is to select from the existing
55 implementations the version of coff which is most like the one
56 you want to use. For example, we'll say that i386 coff is
57 the one you select, and that your coff flavour is called foo.
58 Copy @file{i386coff.c} to @file{foocoff.c}, copy
59 @file{../include/coff/i386.h} to @file{../include/coff/foo.h},
60 and add the lines to @file{targets.c} and @file{Makefile.in}
61 so that your new back end is used. Alter the shapes of the
62 structures in @file{../include/coff/foo.h} so that they match
63 what you need. You will probably also have to add
64 @code{#ifdef}s to the code in @file{coff/internal.h} and
65 @file{coffcode.h} if your version of coff is too wild.
67 You can verify that your new BFD backend works quite simply by
68 building @file{objdump} from the @file{binutils} directory,
69 and making sure that its version of what's going on and your
70 host system's idea (assuming it has the pretty standard coff
71 dump utility, usually called @code{att-dump} or just
72 @code{dump}) are the same. Then clean up your code, and send
73 what you've done to Cygnus. Then your stuff will be in the
74 next release, and you won't have to keep integrating it.
77 How the coff backend works
82 The Coff backend is split into generic routines that are
83 applicable to any Coff target and routines that are specific
84 to a particular target. The target-specific routines are
85 further split into ones which are basically the same for all
86 Coff targets except that they use the external symbol format
87 or use different values for certain constants.
89 The generic routines are in @file{coffgen.c}. These routines
90 work for any Coff target. They use some hooks into the target
91 specific code; the hooks are in a @code{bfd_coff_backend_data}
92 structure, one of which exists for each target.
94 The essentially similar target-specific routines are in
95 @file{coffcode.h}. This header file includes executable C code.
96 The various Coff targets first include the appropriate Coff
97 header file, make any special defines that are needed, and
98 then include @file{coffcode.h}.
100 Some of the Coff targets then also have additional routines in
101 the target source file itself.
103 For example, @file{coff-i960.c} includes
104 @file{coff/internal.h} and @file{coff/i960.h}. It then
105 defines a few constants, such as @code{I960}, and includes
106 @file{coffcode.h}. Since the i960 has complex relocation
107 types, @file{coff-i960.c} also includes some code to
108 manipulate the i960 relocs. This code is not in
109 @file{coffcode.h} because it would not be used by any other
115 Each flavour of coff supported in BFD has its own header file
116 describing the external layout of the structures. There is also
117 an internal description of the coff layout, in
118 @file{coff/internal.h}. A major function of the
119 coff backend is swapping the bytes and twiddling the bits to
120 translate the external form of the structures into the normal
121 internal form. This is all performed in the
122 @code{bfd_swap}_@i{thing}_@i{direction} routines. Some
123 elements are different sizes between different versions of
124 coff; it is the duty of the coff version specific include file
125 to override the definitions of various packing routines in
126 @file{coffcode.h}. E.g., the size of line number entry in coff is
127 sometimes 16 bits, and sometimes 32 bits. @code{#define}ing
128 @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the
129 correct one. No doubt, some day someone will find a version of
130 coff which has a varying field size not catered to at the
131 moment. To port BFD, that person will have to add more @code{#defines}.
132 Three of the bit twiddling routines are exported to
133 @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in}
134 and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol
135 table on its own, but uses BFD to fix things up. More of the
136 bit twiddlers are exported for @code{gas};
137 @code{coff_swap_aux_out}, @code{coff_swap_sym_out},
138 @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out},
139 @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out},
140 @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track
141 of all the symbol table and reloc drudgery itself, thereby
142 saving the internal BFD overhead, but uses BFD to swap things
143 on the way out, making cross ports much safer. Doing so also
144 allows BFD (and thus the linker) to use the same header files
145 as @code{gas}, which makes one avenue to disaster disappear.
150 The simple canonical form for symbols used by BFD is not rich
151 enough to keep all the information available in a coff symbol
152 table. The back end gets around this problem by keeping the original
153 symbol table around, "behind the scenes".
155 When a symbol table is requested (through a call to
156 @code{bfd_canonicalize_symtab}), a request gets through to
157 @code{coff_get_normalized_symtab}. This reads the symbol table from
158 the coff file and swaps all the structures inside into the
159 internal form. It also fixes up all the pointers in the table
160 (represented in the file by offsets from the first symbol in
161 the table) into physical pointers to elements in the new
162 internal table. This involves some work since the meanings of
163 fields change depending upon context: a field that is a
164 pointer to another structure in the symbol table at one moment
165 may be the size in bytes of a structure at the next. Another
166 pass is made over the table. All symbols which mark file names
167 (<<C_FILE>> symbols) are modified so that the internal
168 string points to the value in the auxent (the real filename)
169 rather than the normal text associated with the symbol
172 At this time the symbol names are moved around. Coff stores
173 all symbols less than nine characters long physically
174 within the symbol table; longer strings are kept at the end of
175 the file in the string table. This pass moves all strings
176 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 hierachy 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
252 . {* Remembers the offset from the first symbol in the file for
253 . this symbol. Generated by coff_renumber_symbols. *}
254 .unsigned int offset;
256 . {* Should the value of this symbol be renumbered. Used for
257 . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *}
258 .unsigned int fix_value : 1;
260 . {* Should the tag field of this symbol be renumbered.
261 . Created by coff_pointerize_aux. *}
262 .unsigned int fix_tag : 1;
264 . {* Should the endidx field of this symbol be renumbered.
265 . Created by coff_pointerize_aux. *}
266 .unsigned int fix_end : 1;
268 . {* Should the x_csect.x_scnlen field be renumbered.
269 . Created by coff_pointerize_aux. *}
270 .unsigned int fix_scnlen : 1;
272 . {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the
273 . index into the line number entries. Set by
274 . coff_slurp_symbol_table. *}
275 .unsigned int fix_line : 1;
277 . {* The container for the symbol structure as read and translated
281 . union internal_auxent auxent;
282 . struct internal_syment syment;
284 .} combined_entry_type;
287 .{* Each canonical asymbol really looks like this: *}
289 .typedef struct coff_symbol_struct
291 . {* The actual symbol which the rest of BFD works with *}
294 . {* A pointer to the hidden information for this symbol *}
295 .combined_entry_type *native;
297 . {* A pointer to the linenumber information for this symbol *}
298 .struct lineno_cache_entry *lineno;
300 . {* Have the line numbers been relocated yet ? *}
301 .boolean done_lineno;
310 #include "coffswap.h"
313 #define STRING_SIZE_SIZE (4)
315 static long sec_to_styp_flags
PARAMS ((const char *, flagword
));
316 static flagword styp_to_sec_flags
317 PARAMS ((bfd
*, PTR
, const char *, asection
*));
318 static boolean coff_bad_format_hook
PARAMS ((bfd
*, PTR
));
319 static void coff_set_custom_section_alignment
320 PARAMS ((bfd
*, asection
*, const struct coff_section_alignment_entry
*,
322 static boolean coff_new_section_hook
PARAMS ((bfd
*, asection
*));
323 static boolean coff_set_arch_mach_hook
PARAMS ((bfd
*, PTR
));
324 static boolean coff_write_relocs
PARAMS ((bfd
*, int));
325 static boolean coff_set_flags
326 PARAMS ((bfd
*, unsigned int *, unsigned short *));
327 static boolean coff_set_arch_mach
328 PARAMS ((bfd
*, enum bfd_architecture
, unsigned long));
329 static boolean coff_compute_section_file_positions
PARAMS ((bfd
*));
330 static boolean coff_write_object_contents
PARAMS ((bfd
*));
331 static boolean coff_set_section_contents
332 PARAMS ((bfd
*, asection
*, PTR
, file_ptr
, bfd_size_type
));
333 static PTR buy_and_read
PARAMS ((bfd
*, file_ptr
, int, size_t));
334 static boolean coff_slurp_line_table
PARAMS ((bfd
*, asection
*));
335 static boolean coff_slurp_symbol_table
PARAMS ((bfd
*));
336 static enum coff_symbol_classification coff_classify_symbol
337 PARAMS ((bfd
*, struct internal_syment
*));
338 static boolean coff_slurp_reloc_table
PARAMS ((bfd
*, asection
*, asymbol
**));
339 static long coff_canonicalize_reloc
340 PARAMS ((bfd
*, asection
*, arelent
**, asymbol
**));
341 #ifndef coff_mkobject_hook
342 static PTR coff_mkobject_hook
PARAMS ((bfd
*, PTR
, PTR
));
345 /* void warning(); */
347 /* Return a word with STYP_* (scnhdr.s_flags) flags set to represent
348 the incoming SEC_* flags. The inverse of this function is
349 styp_to_sec_flags(). NOTE: If you add to/change this routine, you
350 should probably mirror the changes in styp_to_sec_flags(). */
355 sec_to_styp_flags (sec_name
, sec_flags
)
356 CONST
char *sec_name
;
361 if (!strcmp (sec_name
, _TEXT
))
363 styp_flags
= STYP_TEXT
;
365 else if (!strcmp (sec_name
, _DATA
))
367 styp_flags
= STYP_DATA
;
369 else if (!strcmp (sec_name
, _BSS
))
371 styp_flags
= STYP_BSS
;
374 else if (!strcmp (sec_name
, _COMMENT
))
376 styp_flags
= STYP_INFO
;
377 #endif /* _COMMENT */
380 else if (!strcmp (sec_name
, _LIB
))
382 styp_flags
= STYP_LIB
;
386 else if (!strcmp (sec_name
, _LIT
))
388 styp_flags
= STYP_LIT
;
391 else if (!strcmp (sec_name
, ".debug"))
394 styp_flags
= STYP_DEBUG
;
396 styp_flags
= STYP_INFO
;
399 else if (!strncmp (sec_name
, ".stab", 5))
401 styp_flags
= STYP_INFO
;
404 else if (!strcmp (sec_name
, _PAD
))
406 styp_flags
= STYP_PAD
;
408 else if (!strcmp (sec_name
, _LOADER
))
410 styp_flags
= STYP_LOADER
;
413 /* Try and figure out what it should be */
414 else if (sec_flags
& SEC_CODE
)
416 styp_flags
= STYP_TEXT
;
418 else if (sec_flags
& SEC_DATA
)
420 styp_flags
= STYP_DATA
;
422 else if (sec_flags
& SEC_READONLY
)
424 #ifdef STYP_LIT /* 29k readonly text/data section */
425 styp_flags
= STYP_LIT
;
427 styp_flags
= STYP_TEXT
;
428 #endif /* STYP_LIT */
430 else if (sec_flags
& SEC_LOAD
)
432 styp_flags
= STYP_TEXT
;
434 else if (sec_flags
& SEC_ALLOC
)
436 styp_flags
= STYP_BSS
;
440 if ((sec_flags
& (SEC_NEVER_LOAD
| SEC_COFF_SHARED_LIBRARY
)) != 0)
441 styp_flags
|= STYP_NOLOAD
;
447 #else /* COFF_WITH_PE */
449 /* The PE version; see above for the general comments. The non-PE
450 case seems to be more guessing, and breaks PE format; specifically,
451 .rdata is readonly, but it sure ain't text. Really, all this
452 should be set up properly in gas (or whatever assembler is in use),
453 and honor whatever objcopy/strip, etc. sent us as input. */
456 sec_to_styp_flags (sec_name
, sec_flags
)
457 const char *sec_name ATTRIBUTE_UNUSED
;
462 /* caution: there are at least three groups of symbols that have
463 very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*.
464 SEC_* are the BFD internal flags, used for generic BFD
465 information. STYP_* are the COFF section flags which appear in
466 COFF files. IMAGE_SCN_* are the PE section flags which appear in
467 PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap,
468 but there are more IMAGE_SCN_* flags. */
473 if ((sec_flags
& SEC_CODE
) != 0)
474 styp_flags
|= IMAGE_SCN_CNT_CODE
;
475 if ((sec_flags
& SEC_DATA
) != 0)
476 styp_flags
|= IMAGE_SCN_CNT_INITIALIZED_DATA
;
477 if ((sec_flags
& SEC_ALLOC
) != 0 && (sec_flags
& SEC_LOAD
) == 0)
478 styp_flags
|= IMAGE_SCN_CNT_UNINITIALIZED_DATA
; /* ==STYP_BSS */
480 /* skip CONSTRUCTOR */
483 if ((sec_flags
& (SEC_NEVER_LOAD
| SEC_COFF_SHARED_LIBRARY
)) != 0)
484 styp_flags
|= STYP_NOLOAD
;
486 if ((sec_flags
& SEC_IS_COMMON
) != 0)
487 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
488 if ((sec_flags
& SEC_DEBUGGING
) != 0)
489 styp_flags
|= IMAGE_SCN_MEM_DISCARDABLE
;
490 if ((sec_flags
& SEC_EXCLUDE
) != 0)
491 styp_flags
|= IMAGE_SCN_LNK_REMOVE
;
492 if ((sec_flags
& SEC_NEVER_LOAD
) != 0)
493 styp_flags
|= IMAGE_SCN_LNK_REMOVE
;
496 if (sec_flags
& SEC_LINK_ONCE
)
497 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
498 /* skip LINK_DUPLICATES */
499 /* skip LINKER_CREATED */
501 /* For now, the read/write bits are mapped onto SEC_READONLY, even
502 though the semantics don't quite match. The bits from the input
503 are retained in pei_section_data(abfd, section)->pe_flags */
505 styp_flags
|= IMAGE_SCN_MEM_READ
; /* always readable. */
506 if ((sec_flags
& SEC_READONLY
) == 0)
507 styp_flags
|= IMAGE_SCN_MEM_WRITE
; /* Invert READONLY for write */
508 if (sec_flags
& SEC_CODE
)
509 styp_flags
|= IMAGE_SCN_MEM_EXECUTE
; /* CODE->EXECUTE */
510 if (sec_flags
& SEC_SHARED
)
511 styp_flags
|= IMAGE_SCN_MEM_SHARED
; /* Shared remains meaningful */
516 #endif /* COFF_WITH_PE */
518 /* Return a word with SEC_* flags set to represent the incoming STYP_*
519 flags (from scnhdr.s_flags). The inverse of this function is
520 sec_to_styp_flags(). NOTE: If you add to/change this routine, you
521 should probably mirror the changes in sec_to_styp_flags(). */
526 styp_to_sec_flags (abfd
, hdr
, name
, section
)
527 bfd
*abfd ATTRIBUTE_UNUSED
;
530 asection
*section ATTRIBUTE_UNUSED
;
532 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
533 long styp_flags
= internal_s
->s_flags
;
534 flagword sec_flags
= 0;
537 if (styp_flags
& STYP_NOLOAD
)
539 sec_flags
|= SEC_NEVER_LOAD
;
541 #endif /* STYP_NOLOAD */
543 /* For 386 COFF, at least, an unloadable text or data section is
544 actually a shared library section. */
545 if (styp_flags
& STYP_TEXT
)
547 if (sec_flags
& SEC_NEVER_LOAD
)
548 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
550 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
552 else if (styp_flags
& STYP_DATA
)
554 if (sec_flags
& SEC_NEVER_LOAD
)
555 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
557 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
559 else if (styp_flags
& STYP_BSS
)
561 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
562 if (sec_flags
& SEC_NEVER_LOAD
)
563 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
566 sec_flags
|= SEC_ALLOC
;
568 else if (styp_flags
& STYP_INFO
)
570 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
571 defined. coff_compute_section_file_positions uses
572 COFF_PAGE_SIZE to ensure that the low order bits of the
573 section VMA and the file offset match. If we don't know
574 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
575 and demand page loading of the file will fail. */
576 #if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS)
577 sec_flags
|= SEC_DEBUGGING
;
580 else if (styp_flags
& STYP_PAD
)
584 else if (strcmp (name
, _TEXT
) == 0)
586 if (sec_flags
& SEC_NEVER_LOAD
)
587 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
589 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
591 else if (strcmp (name
, _DATA
) == 0)
593 if (sec_flags
& SEC_NEVER_LOAD
)
594 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
596 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
598 else if (strcmp (name
, _BSS
) == 0)
600 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
601 if (sec_flags
& SEC_NEVER_LOAD
)
602 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
605 sec_flags
|= SEC_ALLOC
;
607 else if (strcmp (name
, ".debug") == 0
609 || strcmp (name
, _COMMENT
) == 0
611 || strncmp (name
, ".stab", 5) == 0)
613 #ifdef COFF_PAGE_SIZE
614 sec_flags
|= SEC_DEBUGGING
;
618 else if (strcmp (name
, _LIB
) == 0)
622 else if (strcmp (name
, _LIT
) == 0)
624 sec_flags
= SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
;
629 sec_flags
|= SEC_ALLOC
| SEC_LOAD
;
632 #ifdef STYP_LIT /* A29k readonly text/data section type */
633 if ((styp_flags
& STYP_LIT
) == STYP_LIT
)
635 sec_flags
= (SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
);
637 #endif /* STYP_LIT */
638 #ifdef STYP_OTHER_LOAD /* Other loaded sections */
639 if (styp_flags
& STYP_OTHER_LOAD
)
641 sec_flags
= (SEC_LOAD
| SEC_ALLOC
);
643 #endif /* STYP_SDATA */
645 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
646 /* As a GNU extension, if the name begins with .gnu.linkonce, we
647 only link a single copy of the section. This is used to support
648 g++. g++ will emit each template expansion in its own section.
649 The symbols will be defined as weak, so that multiple definitions
650 are permitted. The GNU linker extension is to actually discard
651 all but one of the sections. */
652 if (strncmp (name
, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0)
653 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
659 #else /* COFF_WITH_PE */
661 /* The PE version; see above for the general comments.
663 Since to set the SEC_LINK_ONCE and associated flags, we have to
664 look at the symbol table anyway, we return the symbol table index
665 of the symbol being used as the COMDAT symbol. This is admittedly
666 ugly, but there's really nowhere else that we have access to the
667 required information. FIXME: Is the COMDAT symbol index used for
668 any purpose other than objdump? */
671 styp_to_sec_flags (abfd
, hdr
, name
, section
)
672 bfd
*abfd ATTRIBUTE_UNUSED
;
677 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
678 long styp_flags
= internal_s
->s_flags
;
679 flagword sec_flags
= 0;
681 if (styp_flags
& STYP_DSECT
)
682 abort (); /* Don't know what to do */
683 #ifdef SEC_NEVER_LOAD
684 if (styp_flags
& STYP_NOLOAD
)
685 sec_flags
|= SEC_NEVER_LOAD
;
687 if (styp_flags
& STYP_GROUP
)
688 abort (); /* Don't know what to do */
689 /* skip IMAGE_SCN_TYPE_NO_PAD */
690 if (styp_flags
& STYP_COPY
)
691 abort (); /* Don't know what to do */
692 if (styp_flags
& IMAGE_SCN_CNT_CODE
)
693 sec_flags
|= SEC_CODE
| SEC_ALLOC
| SEC_LOAD
;
694 if (styp_flags
& IMAGE_SCN_CNT_INITIALIZED_DATA
)
695 sec_flags
|= SEC_DATA
| SEC_ALLOC
| SEC_LOAD
;
696 if (styp_flags
& IMAGE_SCN_CNT_UNINITIALIZED_DATA
)
697 sec_flags
|= SEC_ALLOC
;
698 if (styp_flags
& IMAGE_SCN_LNK_OTHER
)
699 abort (); /* Don't know what to do */
700 if (styp_flags
& IMAGE_SCN_LNK_INFO
)
702 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
703 defined. coff_compute_section_file_positions uses
704 COFF_PAGE_SIZE to ensure that the low order bits of the
705 section VMA and the file offset match. If we don't know
706 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
707 and demand page loading of the file will fail. */
708 #ifdef COFF_PAGE_SIZE
709 sec_flags
|= SEC_DEBUGGING
;
712 if (styp_flags
& STYP_OVER
)
713 abort (); /* Don't know what to do */
714 if (styp_flags
& IMAGE_SCN_LNK_REMOVE
)
715 sec_flags
|= SEC_EXCLUDE
;
717 if (styp_flags
& IMAGE_SCN_MEM_SHARED
)
718 sec_flags
|= SEC_SHARED
;
719 /* COMDAT: see below */
720 if (styp_flags
& IMAGE_SCN_MEM_DISCARDABLE
)
721 sec_flags
|= SEC_DEBUGGING
;
722 if (styp_flags
& IMAGE_SCN_MEM_NOT_CACHED
)
723 abort ();/* Don't know what to do */
724 if (styp_flags
& IMAGE_SCN_MEM_NOT_PAGED
)
725 abort (); /* Don't know what to do */
727 /* We infer from the distinct read/write/execute bits the settings
728 of some of the bfd flags; the actual values, should we need them,
729 are also in pei_section_data (abfd, section)->pe_flags. */
731 if (styp_flags
& IMAGE_SCN_MEM_EXECUTE
)
732 sec_flags
|= SEC_CODE
; /* Probably redundant */
733 /* IMAGE_SCN_MEM_READ is simply ignored, assuming it always to be true. */
734 if ((styp_flags
& IMAGE_SCN_MEM_WRITE
) == 0)
735 sec_flags
|= SEC_READONLY
;
737 /* COMDAT gets very special treatment. */
738 if (styp_flags
& IMAGE_SCN_LNK_COMDAT
)
740 sec_flags
|= SEC_LINK_ONCE
;
742 /* Unfortunately, the PE format stores essential information in
743 the symbol table, of all places. We need to extract that
744 information now, so that objdump and the linker will know how
745 to handle the section without worrying about the symbols. We
746 can't call slurp_symtab, because the linker doesn't want the
749 /* COMDAT sections are special. The first symbol is the section
750 symbol, which tells what kind of COMDAT section it is. The
751 second symbol is the "comdat symbol" - the one with the
752 unique name. GNU uses the section symbol for the unique
753 name; MS uses ".text" for every comdat section. Sigh. - DJ */
755 /* This is not mirrored in sec_to_styp_flags(), but there
756 doesn't seem to be a need to, either, and it would at best be
759 if (_bfd_coff_get_external_symbols (abfd
))
761 bfd_byte
*esymstart
, *esym
, *esymend
;
763 esymstart
= esym
= (bfd_byte
*) obj_coff_external_syms (abfd
);
764 esymend
= esym
+ obj_raw_syment_count (abfd
) * SYMESZ
;
766 while (esym
< esymend
)
768 struct internal_syment isym
;
769 char buf
[SYMNMLEN
+ 1];
772 bfd_coff_swap_sym_in (abfd
, (PTR
) esym
, (PTR
) &isym
);
774 if (sizeof (internal_s
->s_name
) > SYMNMLEN
)
776 /* This case implies that the matching symbol name
777 will be in the string table. */
781 /* The MS documentation is vague, but it appears to
782 require that n_sclass be C_STAT for both entries;
783 However, the Alpha compiler uses C_EXT for the one
784 with the "real" name, at least for string-pooled
786 if (isym
.n_scnum
== section
->target_index
787 && (isym
.n_sclass
== C_STAT
|| isym
.n_sclass
== C_EXT
)
788 && isym
.n_type
== T_NULL
789 && isym
.n_value
== 0)
791 /* The first TWO entries with the section # are both
792 of interest to us. The first one is the "section
793 symbol" (section name). The second is the comdat
794 symbol name. 'value' must be zero for it to
795 apply. Here, we've found a qualifying entry; we
796 distinguish the first from the second by numaux
797 (which should be 0 for the second). FIXME: We
798 should use the first one first rather than
799 counting on numaux. */
800 if (isym
.n_numaux
== 1)
802 union internal_auxent aux
;
804 symname
= _bfd_coff_internal_syment_name (abfd
, &isym
,
809 if (strcmp (name
, symname
) != 0)
812 /* This is the section symbol. */
814 bfd_coff_swap_aux_in (abfd
, (PTR
) (esym
+ SYMESZ
),
815 isym
.n_type
, isym
.n_sclass
,
816 0, isym
.n_numaux
, (PTR
) &aux
);
818 /* FIXME: Microsoft uses NODUPLICATES and
819 ASSOCIATIVE, but gnu uses ANY and SAME_SIZE.
820 Unfortunately, gnu doesn't do the comdat
821 symbols right. So, until we can fix it to do
822 the right thing, we are temporarily disabling
823 comdats for the MS types (they're used in
824 DLLs and C++, but we don't support *their*
825 C++ libraries anyway - DJ. */
827 switch (aux
.x_scn
.x_comdat
)
829 case IMAGE_COMDAT_SELECT_NODUPLICATES
:
830 /* FIXME: This is bogus. It breaks cross-compilers. */
832 sec_flags
|= SEC_LINK_DUPLICATES_ONE_ONLY
;
834 sec_flags
&= ~SEC_LINK_ONCE
;
838 case IMAGE_COMDAT_SELECT_ANY
:
839 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
842 case IMAGE_COMDAT_SELECT_SAME_SIZE
:
843 sec_flags
|= SEC_LINK_DUPLICATES_SAME_SIZE
;
846 case IMAGE_COMDAT_SELECT_EXACT_MATCH
:
847 /* Not yet fully implemented in the linker. */
848 sec_flags
|= SEC_LINK_DUPLICATES_SAME_CONTENTS
;
851 case IMAGE_COMDAT_SELECT_ASSOCIATIVE
:
852 /* FIXME: This is bogus. It breaks cross-compilers. */
854 /* FIXME: This is not currently implemented. */
855 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
857 sec_flags
&= ~SEC_LINK_ONCE
;
862 /* FIXME: Shouldn't this be at least a
864 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
872 /* This should be the the second symbol with the
873 section #. It is the actual symbol name.
874 Intel puts the two adjacent, but Alpha (at
875 least) spreads them out. */
878 bfd_alloc (abfd
, sizeof (struct bfd_comdat_info
));
879 if (section
->comdat
== NULL
)
881 section
->comdat
->symbol
= (esym
- esymstart
) / SYMESZ
;
882 symname
= _bfd_coff_internal_syment_name (abfd
, &isym
,
887 newname
= bfd_alloc (abfd
, strlen (symname
) + 1);
890 strcpy (newname
, symname
);
891 section
->comdat
->name
= newname
;
897 esym
+= (isym
.n_numaux
+ 1) * SYMESZ
;
902 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
903 /* As a GNU extension, if the name begins with .gnu.linkonce, we
904 only link a single copy of the section. This is used to support
905 g++. g++ will emit each template expansion in its own section.
906 The symbols will be defined as weak, so that multiple definitions
907 are permitted. The GNU linker extension is to actually discard
908 all but one of the sections. */
909 if (strncmp (name
, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0)
910 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
916 #endif /* COFF_WITH_PE */
918 #define get_index(symbol) ((symbol)->udata.i)
922 bfd_coff_backend_data
926 .{* COFF symbol classifications. *}
928 .enum coff_symbol_classification
930 . {* Global symbol. *}
931 . COFF_SYMBOL_GLOBAL,
932 . {* Common symbol. *}
933 . COFF_SYMBOL_COMMON,
934 . {* Undefined symbol. *}
935 . COFF_SYMBOL_UNDEFINED,
936 . {* Local symbol. *}
938 . {* PE section symbol. *}
939 . COFF_SYMBOL_PE_SECTION
942 Special entry points for gdb to swap in coff symbol table parts:
945 . void (*_bfd_coff_swap_aux_in) PARAMS ((
954 . void (*_bfd_coff_swap_sym_in) PARAMS ((
959 . void (*_bfd_coff_swap_lineno_in) PARAMS ((
965 Special entry points for gas to swap out coff parts:
967 . unsigned int (*_bfd_coff_swap_aux_out) PARAMS ((
976 . unsigned int (*_bfd_coff_swap_sym_out) PARAMS ((
981 . unsigned int (*_bfd_coff_swap_lineno_out) PARAMS ((
986 . unsigned int (*_bfd_coff_swap_reloc_out) PARAMS ((
991 . unsigned int (*_bfd_coff_swap_filehdr_out) PARAMS ((
996 . unsigned int (*_bfd_coff_swap_aouthdr_out) PARAMS ((
1001 . unsigned int (*_bfd_coff_swap_scnhdr_out) PARAMS ((
1007 Special entry points for generic COFF routines to call target
1008 dependent COFF routines:
1010 . unsigned int _bfd_filhsz;
1011 . unsigned int _bfd_aoutsz;
1012 . unsigned int _bfd_scnhsz;
1013 . unsigned int _bfd_symesz;
1014 . unsigned int _bfd_auxesz;
1015 . unsigned int _bfd_relsz;
1016 . unsigned int _bfd_linesz;
1017 . boolean _bfd_coff_long_filenames;
1018 . boolean _bfd_coff_long_section_names;
1019 . unsigned int _bfd_coff_default_section_alignment_power;
1020 . void (*_bfd_coff_swap_filehdr_in) PARAMS ((
1024 . void (*_bfd_coff_swap_aouthdr_in) PARAMS ((
1028 . void (*_bfd_coff_swap_scnhdr_in) PARAMS ((
1032 . void (*_bfd_coff_swap_reloc_in) PARAMS ((
1036 . boolean (*_bfd_coff_bad_format_hook) PARAMS ((
1038 . PTR internal_filehdr));
1039 . boolean (*_bfd_coff_set_arch_mach_hook) PARAMS ((
1041 . PTR internal_filehdr));
1042 . PTR (*_bfd_coff_mkobject_hook) PARAMS ((
1044 . PTR internal_filehdr,
1045 . PTR internal_aouthdr));
1046 . flagword (*_bfd_styp_to_sec_flags_hook) PARAMS ((
1048 . PTR internal_scnhdr,
1050 . asection *section));
1051 . void (*_bfd_set_alignment_hook) PARAMS ((
1054 . PTR internal_scnhdr));
1055 . boolean (*_bfd_coff_slurp_symbol_table) PARAMS ((
1057 . boolean (*_bfd_coff_symname_in_debug) PARAMS ((
1059 . struct internal_syment *sym));
1060 . boolean (*_bfd_coff_pointerize_aux_hook) PARAMS ((
1062 . combined_entry_type *table_base,
1063 . combined_entry_type *symbol,
1064 . unsigned int indaux,
1065 . combined_entry_type *aux));
1066 . boolean (*_bfd_coff_print_aux) PARAMS ((
1069 . combined_entry_type *table_base,
1070 . combined_entry_type *symbol,
1071 . combined_entry_type *aux,
1072 . unsigned int indaux));
1073 . void (*_bfd_coff_reloc16_extra_cases) PARAMS ((
1075 . struct bfd_link_info *link_info,
1076 . struct bfd_link_order *link_order,
1079 . unsigned int *src_ptr,
1080 . unsigned int *dst_ptr));
1081 . int (*_bfd_coff_reloc16_estimate) PARAMS ((
1083 . asection *input_section,
1085 . unsigned int shrink,
1086 . struct bfd_link_info *link_info));
1087 . enum coff_symbol_classification (*_bfd_coff_classify_symbol) PARAMS ((
1089 . struct internal_syment *));
1090 . boolean (*_bfd_coff_compute_section_file_positions) PARAMS ((
1092 . boolean (*_bfd_coff_start_final_link) PARAMS ((
1094 . struct bfd_link_info *info));
1095 . boolean (*_bfd_coff_relocate_section) PARAMS ((
1097 . struct bfd_link_info *info,
1099 . asection *input_section,
1100 . bfd_byte *contents,
1101 . struct internal_reloc *relocs,
1102 . struct internal_syment *syms,
1103 . asection **sections));
1104 . reloc_howto_type *(*_bfd_coff_rtype_to_howto) PARAMS ((
1107 . struct internal_reloc *rel,
1108 . struct coff_link_hash_entry *h,
1109 . struct internal_syment *sym,
1110 . bfd_vma *addendp));
1111 . boolean (*_bfd_coff_adjust_symndx) PARAMS ((
1113 . struct bfd_link_info *info,
1116 . struct internal_reloc *reloc,
1117 . boolean *adjustedp));
1118 . boolean (*_bfd_coff_link_add_one_symbol) PARAMS ((
1119 . struct bfd_link_info *info,
1123 . asection *section,
1125 . const char *string,
1128 . struct bfd_link_hash_entry **hashp));
1130 . boolean (*_bfd_coff_link_output_has_begun) PARAMS ((
1132 . struct coff_final_link_info * pfinfo));
1133 . boolean (*_bfd_coff_final_link_postscript) PARAMS ((
1135 . struct coff_final_link_info * pfinfo));
1137 .} bfd_coff_backend_data;
1139 .#define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
1141 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
1142 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
1144 .#define bfd_coff_swap_sym_in(a,e,i) \
1145 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
1147 .#define bfd_coff_swap_lineno_in(a,e,i) \
1148 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
1150 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
1151 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
1153 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
1154 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
1156 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
1157 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
1159 .#define bfd_coff_swap_sym_out(abfd, i,o) \
1160 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
1162 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
1163 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
1165 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
1166 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
1168 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
1169 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
1171 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1172 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1173 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1174 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1175 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1176 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1177 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
1178 .#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames)
1179 .#define bfd_coff_long_section_names(abfd) \
1180 . (coff_backend_info (abfd)->_bfd_coff_long_section_names)
1181 .#define bfd_coff_default_section_alignment_power(abfd) \
1182 . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
1183 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
1184 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
1186 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
1187 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
1189 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
1190 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
1192 .#define bfd_coff_swap_reloc_in(abfd, i, o) \
1193 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
1195 .#define bfd_coff_bad_format_hook(abfd, filehdr) \
1196 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
1198 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
1199 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
1200 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
1201 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr))
1203 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section)\
1204 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1205 . (abfd, scnhdr, name, section))
1207 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
1208 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
1210 .#define bfd_coff_slurp_symbol_table(abfd)\
1211 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
1213 .#define bfd_coff_symname_in_debug(abfd, sym)\
1214 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
1216 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
1217 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1218 . (abfd, file, base, symbol, aux, indaux))
1220 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\
1221 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1222 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
1224 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
1225 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1226 . (abfd, section, reloc, shrink, link_info))
1228 .#define bfd_coff_classify_symbol(abfd, sym)\
1229 . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1232 .#define bfd_coff_compute_section_file_positions(abfd)\
1233 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1236 .#define bfd_coff_start_final_link(obfd, info)\
1237 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1239 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
1240 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1241 . (obfd, info, ibfd, o, con, rel, isyms, secs))
1242 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
1243 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1244 . (abfd, sec, rel, h, sym, addendp))
1245 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
1246 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1247 . (obfd, info, ibfd, sec, rel, adjustedp))
1248 .#define bfd_coff_link_add_one_symbol(info,abfd,name,flags,section,value,string,cp,coll,hashp)\
1249 . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1250 . (info, abfd, name, flags, section, value, string, cp, coll, hashp))
1252 .#define bfd_coff_link_output_has_begun(a,p) \
1253 . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a,p))
1254 .#define bfd_coff_final_link_postscript(a,p) \
1255 . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a,p))
1259 /* See whether the magic number matches. */
1262 coff_bad_format_hook (abfd
, filehdr
)
1263 bfd
* abfd ATTRIBUTE_UNUSED
;
1266 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1268 if (BADMAG (*internal_f
))
1271 /* if the optional header is NULL or not the correct size then
1272 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1273 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1274 optional header is of a different size.
1276 But the mips keeps extra stuff in it's opthdr, so dont check
1280 #if defined(M88) || defined(I960)
1281 if (internal_f
->f_opthdr
!= 0 && AOUTSZ
!= internal_f
->f_opthdr
)
1288 /* Check whether this section uses an alignment other than the
1292 coff_set_custom_section_alignment (abfd
, section
, alignment_table
, table_size
)
1293 bfd
*abfd ATTRIBUTE_UNUSED
;
1295 const struct coff_section_alignment_entry
*alignment_table
;
1296 const unsigned int table_size
;
1298 const unsigned int default_alignment
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1301 for (i
= 0; i
< table_size
; ++i
)
1303 const char *secname
= bfd_get_section_name (abfd
, section
);
1304 if (alignment_table
[i
].comparison_length
== (unsigned int) -1
1305 ? strcmp (alignment_table
[i
].name
, secname
) == 0
1306 : strncmp (alignment_table
[i
].name
, secname
,
1307 alignment_table
[i
].comparison_length
) == 0)
1310 if (i
>= table_size
)
1313 if (alignment_table
[i
].default_alignment_min
!= COFF_ALIGNMENT_FIELD_EMPTY
1314 && default_alignment
< alignment_table
[i
].default_alignment_min
)
1317 if (alignment_table
[i
].default_alignment_max
!= COFF_ALIGNMENT_FIELD_EMPTY
1318 && default_alignment
> alignment_table
[i
].default_alignment_max
)
1321 section
->alignment_power
= alignment_table
[i
].alignment_power
;
1324 /* Custom section alignment records. */
1326 static const struct coff_section_alignment_entry
1327 coff_section_alignment_table
[] =
1329 #ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1330 COFF_SECTION_ALIGNMENT_ENTRIES
,
1332 /* There must not be any gaps between .stabstr sections. */
1333 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1334 1, COFF_ALIGNMENT_FIELD_EMPTY
, 0 },
1335 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1336 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1337 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1338 /* Similarly for the .ctors and .dtors sections. */
1339 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1340 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1341 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1342 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 }
1345 static const unsigned int coff_section_alignment_table_size
=
1346 sizeof coff_section_alignment_table
/ sizeof coff_section_alignment_table
[0];
1348 /* Initialize a section structure with information peculiar to this
1349 particular implementation of COFF. */
1352 coff_new_section_hook (abfd
, section
)
1356 combined_entry_type
*native
;
1358 section
->alignment_power
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1361 if (xcoff_data (abfd
)->text_align_power
!= 0
1362 && strcmp (bfd_get_section_name (abfd
, section
), ".text") == 0)
1363 section
->alignment_power
= xcoff_data (abfd
)->text_align_power
;
1364 if (xcoff_data (abfd
)->data_align_power
!= 0
1365 && strcmp (bfd_get_section_name (abfd
, section
), ".data") == 0)
1366 section
->alignment_power
= xcoff_data (abfd
)->data_align_power
;
1369 /* Allocate aux records for section symbols, to store size and
1372 @@ The 10 is a guess at a plausible maximum number of aux entries
1373 (but shouldn't be a constant). */
1374 native
= ((combined_entry_type
*)
1375 bfd_zalloc (abfd
, sizeof (combined_entry_type
) * 10));
1379 /* We don't need to set up n_name, n_value, or n_scnum in the native
1380 symbol information, since they'll be overriden by the BFD symbol
1381 anyhow. However, we do need to set the type and storage class,
1382 in case this symbol winds up getting written out. The value 0
1383 for n_numaux is already correct. */
1385 native
->u
.syment
.n_type
= T_NULL
;
1386 native
->u
.syment
.n_sclass
= C_STAT
;
1388 coffsymbol (section
->symbol
)->native
= native
;
1390 coff_set_custom_section_alignment (abfd
, section
,
1391 coff_section_alignment_table
,
1392 coff_section_alignment_table_size
);
1397 #ifdef COFF_ALIGN_IN_SECTION_HEADER
1399 /* Set the alignment of a BFD section. */
1401 static void coff_set_alignment_hook
PARAMS ((bfd
*, asection
*, PTR
));
1404 coff_set_alignment_hook (abfd
, section
, scnhdr
)
1405 bfd
* abfd ATTRIBUTE_UNUSED
;
1409 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1413 /* Extract ALIGN from 2**ALIGN stored in section header */
1414 for (i
= 0; i
< 32; i
++)
1415 if ((1 << i
) >= hdr
->s_align
)
1419 /* TI tools hijack bits 8-11 for the alignment */
1420 i
= (hdr
->s_flags
>> 8) & 0xF ;
1422 section
->alignment_power
= i
;
1425 #else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1428 /* a couple of macros to help setting the alignment power field */
1429 #define ALIGN_SET(field,x,y) \
1430 if (((field) & IMAGE_SCN_ALIGN_64BYTES) == x )\
1432 section->alignment_power = y;\
1435 #define ELIFALIGN_SET(field,x,y) \
1436 else if (( (field) & IMAGE_SCN_ALIGN_64BYTES) == x ) \
1438 section->alignment_power = y;\
1441 static void coff_set_alignment_hook
PARAMS ((bfd
*, asection
*, PTR
));
1444 coff_set_alignment_hook (abfd
, section
, scnhdr
)
1445 bfd
* abfd ATTRIBUTE_UNUSED
;
1449 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1451 ALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_64BYTES
, 6)
1452 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_32BYTES
, 5)
1453 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_16BYTES
, 4)
1454 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_8BYTES
, 3)
1455 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_4BYTES
, 2)
1456 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_2BYTES
, 1)
1457 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_1BYTES
, 0)
1459 #ifdef POWERPC_LE_PE
1460 if (strcmp (section
->name
, ".idata$2") == 0)
1462 section
->alignment_power
= 0;
1464 else if (strcmp (section
->name
, ".idata$3") == 0)
1466 section
->alignment_power
= 0;
1468 else if (strcmp (section
->name
, ".idata$4") == 0)
1470 section
->alignment_power
= 2;
1472 else if (strcmp (section
->name
, ".idata$5") == 0)
1474 section
->alignment_power
= 2;
1476 else if (strcmp (section
->name
, ".idata$6") == 0)
1478 section
->alignment_power
= 1;
1480 else if (strcmp (section
->name
, ".reloc") == 0)
1482 section
->alignment_power
= 1;
1484 else if (strncmp (section
->name
, ".stab", 5) == 0)
1486 section
->alignment_power
= 2;
1490 #ifdef COFF_IMAGE_WITH_PE
1491 /* In a PE image file, the s_paddr field holds the virtual size of a
1492 section, while the s_size field holds the raw size. */
1493 if (hdr
->s_paddr
!= 0)
1495 if (coff_section_data (abfd
, section
) == NULL
)
1497 section
->used_by_bfd
=
1498 (PTR
) bfd_zalloc (abfd
, sizeof (struct coff_section_tdata
));
1499 if (section
->used_by_bfd
== NULL
)
1501 /* FIXME: Return error. */
1505 if (pei_section_data (abfd
, section
) == NULL
)
1507 coff_section_data (abfd
, section
)->tdata
=
1508 (PTR
) bfd_zalloc (abfd
, sizeof (struct pei_section_tdata
));
1509 if (coff_section_data (abfd
, section
)->tdata
== NULL
)
1511 /* FIXME: Return error. */
1515 pei_section_data (abfd
, section
)->virt_size
= hdr
->s_paddr
;
1520 section
->lma
= hdr
->s_vaddr
;
1524 #undef ELIFALIGN_SET
1526 #else /* ! COFF_WITH_PE */
1529 /* We grossly abuse this function to handle XCOFF overflow headers.
1530 When we see one, we correct the reloc and line number counts in the
1531 real header, and remove the section we just created. */
1533 static void coff_set_alignment_hook
PARAMS ((bfd
*, asection
*, PTR
));
1536 coff_set_alignment_hook (abfd
, section
, scnhdr
)
1541 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1545 if ((hdr
->s_flags
& STYP_OVRFLO
) == 0)
1548 real_sec
= coff_section_from_bfd_index (abfd
, hdr
->s_nreloc
);
1549 if (real_sec
== NULL
)
1552 real_sec
->reloc_count
= hdr
->s_paddr
;
1553 real_sec
->lineno_count
= hdr
->s_vaddr
;
1555 for (ps
= &abfd
->sections
; *ps
!= NULL
; ps
= &(*ps
)->next
)
1560 --abfd
->section_count
;
1566 #else /* ! RS6000COFF_C */
1568 #define coff_set_alignment_hook \
1569 ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void)
1571 #endif /* ! RS6000COFF_C */
1572 #endif /* ! COFF_WITH_PE */
1573 #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
1575 #ifndef coff_mkobject
1577 static boolean coff_mkobject
PARAMS ((bfd
*));
1580 coff_mkobject (abfd
)
1583 coff_data_type
*coff
;
1585 abfd
->tdata
.coff_obj_data
= (struct coff_tdata
*) bfd_zalloc (abfd
, sizeof (coff_data_type
));
1586 if (abfd
->tdata
.coff_obj_data
== 0)
1588 coff
= coff_data (abfd
);
1589 coff
->symbols
= (coff_symbol_type
*) NULL
;
1590 coff
->conversion_table
= (unsigned int *) NULL
;
1591 coff
->raw_syments
= (struct coff_ptr_struct
*) NULL
;
1592 coff
->relocbase
= 0;
1593 coff
->local_toc_sym_map
= 0;
1595 /* make_abs_section(abfd);*/
1601 /* Create the COFF backend specific information. */
1602 #ifndef coff_mkobject_hook
1604 coff_mkobject_hook (abfd
, filehdr
, aouthdr
)
1607 PTR aouthdr ATTRIBUTE_UNUSED
;
1609 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1610 coff_data_type
*coff
;
1612 if (coff_mkobject (abfd
) == false)
1615 coff
= coff_data (abfd
);
1617 coff
->sym_filepos
= internal_f
->f_symptr
;
1619 /* These members communicate important constants about the symbol
1620 table to GDB's symbol-reading code. These `constants'
1621 unfortunately vary among coff implementations... */
1622 coff
->local_n_btmask
= N_BTMASK
;
1623 coff
->local_n_btshft
= N_BTSHFT
;
1624 coff
->local_n_tmask
= N_TMASK
;
1625 coff
->local_n_tshift
= N_TSHIFT
;
1626 coff
->local_symesz
= SYMESZ
;
1627 coff
->local_auxesz
= AUXESZ
;
1628 coff
->local_linesz
= LINESZ
;
1630 obj_raw_syment_count (abfd
) =
1631 obj_conv_table_size (abfd
) =
1632 internal_f
->f_nsyms
;
1635 if ((internal_f
->f_flags
& F_SHROBJ
) != 0)
1636 abfd
->flags
|= DYNAMIC
;
1637 if (aouthdr
!= NULL
&& internal_f
->f_opthdr
>= AOUTSZ
)
1639 struct internal_aouthdr
*internal_a
=
1640 (struct internal_aouthdr
*) aouthdr
;
1641 struct xcoff_tdata
*xcoff
;
1643 xcoff
= xcoff_data (abfd
);
1644 xcoff
->full_aouthdr
= true;
1645 xcoff
->toc
= internal_a
->o_toc
;
1646 xcoff
->sntoc
= internal_a
->o_sntoc
;
1647 xcoff
->snentry
= internal_a
->o_snentry
;
1648 xcoff
->text_align_power
= internal_a
->o_algntext
;
1649 xcoff
->data_align_power
= internal_a
->o_algndata
;
1650 xcoff
->modtype
= internal_a
->o_modtype
;
1651 xcoff
->cputype
= internal_a
->o_cputype
;
1652 xcoff
->maxdata
= internal_a
->o_maxdata
;
1653 xcoff
->maxstack
= internal_a
->o_maxstack
;
1658 /* Set the flags field from the COFF header read in */
1659 if (! _bfd_coff_arm_set_private_flags (abfd
, internal_f
->f_flags
))
1667 /* Determine the machine architecture and type. FIXME: This is target
1668 dependent because the magic numbers are defined in the target
1669 dependent header files. But there is no particular need for this.
1670 If the magic numbers were moved to a separate file, this function
1671 would be target independent and would also be much more successful
1672 at linking together COFF files for different architectures. */
1675 coff_set_arch_mach_hook (abfd
, filehdr
)
1680 enum bfd_architecture arch
;
1681 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1684 switch (internal_f
->f_magic
)
1688 arch
= bfd_arch_powerpc
;
1689 machine
= 0; /* what does this mean? (krk) */
1695 case I386AIXMAGIC
: /* Danbury PS/2 AIX C Compiler */
1696 case LYNXCOFFMAGIC
: /* shadows the m68k Lynx number below, sigh */
1697 arch
= bfd_arch_i386
;
1701 #ifdef A29K_MAGIC_BIG
1702 case A29K_MAGIC_BIG
:
1703 case A29K_MAGIC_LITTLE
:
1704 arch
= bfd_arch_a29k
;
1710 arch
= bfd_arch_arm
;
1711 switch (internal_f
->f_flags
& F_ARM_ARCHITECTURE_MASK
)
1713 case F_ARM_2
: machine
= bfd_mach_arm_2
; break;
1714 case F_ARM_2a
: machine
= bfd_mach_arm_2a
; break;
1715 case F_ARM_3
: machine
= bfd_mach_arm_3
; break;
1717 case F_ARM_3M
: machine
= bfd_mach_arm_3M
; break;
1718 case F_ARM_4
: machine
= bfd_mach_arm_4
; break;
1719 case F_ARM_4T
: machine
= bfd_mach_arm_4T
; break;
1720 case F_ARM_5
: machine
= bfd_mach_arm_5
; break;
1727 #ifdef MC68KBCSMAGIC
1730 #ifdef APOLLOM68KMAGIC
1731 case APOLLOM68KMAGIC
:
1733 #ifdef LYNXCOFFMAGIC
1736 arch
= bfd_arch_m68k
;
1737 machine
= bfd_mach_m68020
;
1744 arch
= bfd_arch_m88k
;
1750 arch
= bfd_arch_z8k
;
1751 switch (internal_f
->f_flags
& F_MACHMASK
)
1754 machine
= bfd_mach_z8001
;
1757 machine
= bfd_mach_z8002
;
1766 arch
= bfd_arch_i860
;
1773 arch
= bfd_arch_i960
;
1774 switch (F_I960TYPE
& internal_f
->f_flags
)
1778 machine
= bfd_mach_i960_core
;
1781 machine
= bfd_mach_i960_kb_sb
;
1784 machine
= bfd_mach_i960_mc
;
1787 machine
= bfd_mach_i960_xa
;
1790 machine
= bfd_mach_i960_ca
;
1793 machine
= bfd_mach_i960_ka_sa
;
1796 machine
= bfd_mach_i960_jx
;
1799 machine
= bfd_mach_i960_hx
;
1813 if (xcoff_data (abfd
)->cputype
!= -1)
1814 cputype
= xcoff_data (abfd
)->cputype
& 0xff;
1817 /* We did not get a value from the a.out header. If the
1818 file has not been stripped, we may be able to get the
1819 architecture information from the first symbol, if it
1820 is a .file symbol. */
1821 if (obj_raw_syment_count (abfd
) == 0)
1825 bfd_byte buf
[SYMESZ
];
1826 struct internal_syment sym
;
1828 if (bfd_seek (abfd
, obj_sym_filepos (abfd
), SEEK_SET
) != 0
1829 || bfd_read (buf
, 1, SYMESZ
, abfd
) != SYMESZ
)
1831 coff_swap_sym_in (abfd
, (PTR
) buf
, (PTR
) &sym
);
1832 if (sym
.n_sclass
== C_FILE
)
1833 cputype
= sym
.n_type
& 0xff;
1839 /* FIXME: We don't handle all cases here. */
1845 /* PowerPC Macs use the same magic numbers as RS/6000
1846 (because that's how they were bootstrapped originally),
1847 but they are always PowerPC architecture. */
1848 arch
= bfd_arch_powerpc
;
1851 arch
= bfd_arch_rs6000
;
1853 #endif /* POWERMAC */
1857 arch
= bfd_arch_powerpc
;
1860 case 2: /* 64 bit PowerPC */
1861 arch
= bfd_arch_powerpc
;
1865 arch
= bfd_arch_powerpc
;
1869 arch
= bfd_arch_rs6000
;
1879 arch
= bfd_arch_we32k
;
1886 arch
= bfd_arch_h8300
;
1887 machine
= bfd_mach_h8300
;
1888 /* !! FIXME this probably isn't the right place for this */
1889 abfd
->flags
|= BFD_IS_RELAXABLE
;
1895 arch
= bfd_arch_h8300
;
1896 machine
= bfd_mach_h8300h
;
1897 /* !! FIXME this probably isn't the right place for this */
1898 abfd
->flags
|= BFD_IS_RELAXABLE
;
1904 arch
= bfd_arch_h8300
;
1905 machine
= bfd_mach_h8300s
;
1906 /* !! FIXME this probably isn't the right place for this */
1907 abfd
->flags
|= BFD_IS_RELAXABLE
;
1911 #ifdef SH_ARCH_MAGIC_BIG
1912 case SH_ARCH_MAGIC_BIG
:
1913 case SH_ARCH_MAGIC_LITTLE
:
1921 arch
= bfd_arch_h8500
;
1928 #ifdef LYNXCOFFMAGIC
1931 arch
= bfd_arch_sparc
;
1938 arch
= bfd_arch_tic30
;
1942 #ifdef TIC80_ARCH_MAGIC
1943 case TIC80_ARCH_MAGIC
:
1944 arch
= bfd_arch_tic80
;
1950 arch
= bfd_arch_mcore
;
1953 default: /* Unreadable input file type */
1954 arch
= bfd_arch_obscure
;
1958 bfd_default_set_arch_mach (abfd
, arch
, machine
);
1962 #ifdef SYMNAME_IN_DEBUG
1964 static boolean symname_in_debug_hook
1965 PARAMS ((bfd
*, struct internal_syment
*));
1968 symname_in_debug_hook (abfd
, sym
)
1969 bfd
* abfd ATTRIBUTE_UNUSED
;
1970 struct internal_syment
*sym
;
1972 return SYMNAME_IN_DEBUG (sym
) ? true : false;
1977 #define symname_in_debug_hook \
1978 (boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false
1984 /* Handle the csect auxent of a C_EXT or C_HIDEXT symbol. */
1986 static boolean coff_pointerize_aux_hook
1987 PARAMS ((bfd
*, combined_entry_type
*, combined_entry_type
*,
1988 unsigned int, combined_entry_type
*));
1992 coff_pointerize_aux_hook (abfd
, table_base
, symbol
, indaux
, aux
)
1993 bfd
*abfd ATTRIBUTE_UNUSED
;
1994 combined_entry_type
*table_base
;
1995 combined_entry_type
*symbol
;
1996 unsigned int indaux
;
1997 combined_entry_type
*aux
;
1999 int class = symbol
->u
.syment
.n_sclass
;
2001 if ((class == C_EXT
|| class == C_HIDEXT
)
2002 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2004 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) == XTY_LD
)
2006 aux
->u
.auxent
.x_csect
.x_scnlen
.p
=
2007 table_base
+ aux
->u
.auxent
.x_csect
.x_scnlen
.l
;
2008 aux
->fix_scnlen
= 1;
2011 /* Return true to indicate that the caller should not do any
2012 further work on this auxent. */
2016 /* Return false to indicate that this auxent should be handled by
2024 /* We don't want to pointerize bal entries. */
2026 static boolean coff_pointerize_aux_hook
2027 PARAMS ((bfd
*, combined_entry_type
*, combined_entry_type
*,
2028 unsigned int, combined_entry_type
*));
2032 coff_pointerize_aux_hook (abfd
, table_base
, symbol
, indaux
, aux
)
2033 bfd
*abfd ATTRIBUTE_UNUSED
;
2034 combined_entry_type
*table_base ATTRIBUTE_UNUSED
;
2035 combined_entry_type
*symbol
;
2036 unsigned int indaux
;
2037 combined_entry_type
*aux ATTRIBUTE_UNUSED
;
2039 /* Return true if we don't want to pointerize this aux entry, which
2040 is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */
2042 && (symbol
->u
.syment
.n_sclass
== C_LEAFPROC
2043 || symbol
->u
.syment
.n_sclass
== C_LEAFSTAT
2044 || symbol
->u
.syment
.n_sclass
== C_LEAFEXT
));
2049 #define coff_pointerize_aux_hook 0
2052 #endif /* ! RS6000COFF_C */
2054 /* Print an aux entry. This returns true if it has printed it. */
2056 static boolean coff_print_aux
2057 PARAMS ((bfd
*, FILE *, combined_entry_type
*, combined_entry_type
*,
2058 combined_entry_type
*, unsigned int));
2061 coff_print_aux (abfd
, file
, table_base
, symbol
, aux
, indaux
)
2062 bfd
*abfd ATTRIBUTE_UNUSED
;
2063 FILE *file ATTRIBUTE_UNUSED
;
2064 combined_entry_type
*table_base ATTRIBUTE_UNUSED
;
2065 combined_entry_type
*symbol ATTRIBUTE_UNUSED
;
2066 combined_entry_type
*aux ATTRIBUTE_UNUSED
;
2067 unsigned int indaux ATTRIBUTE_UNUSED
;
2070 if ((symbol
->u
.syment
.n_sclass
== C_EXT
2071 || symbol
->u
.syment
.n_sclass
== C_HIDEXT
)
2072 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2074 /* This is a csect entry. */
2075 fprintf (file
, "AUX ");
2076 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) != XTY_LD
)
2078 BFD_ASSERT (! aux
->fix_scnlen
);
2079 fprintf (file
, "val %5ld", aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2083 fprintf (file
, "indx ");
2084 if (! aux
->fix_scnlen
)
2085 fprintf (file
, "%4ld", aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2087 fprintf (file
, "%4ld",
2088 (long) (aux
->u
.auxent
.x_csect
.x_scnlen
.p
- table_base
));
2091 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2092 aux
->u
.auxent
.x_csect
.x_parmhash
,
2093 (unsigned int) aux
->u
.auxent
.x_csect
.x_snhash
,
2094 SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
),
2095 SMTYP_ALIGN (aux
->u
.auxent
.x_csect
.x_smtyp
),
2096 (unsigned int) aux
->u
.auxent
.x_csect
.x_smclas
,
2097 aux
->u
.auxent
.x_csect
.x_stab
,
2098 (unsigned int) aux
->u
.auxent
.x_csect
.x_snstab
);
2103 /* Return false to indicate that no special action was taken. */
2111 To write relocations, the back end steps though the
2112 canonical relocation table and create an
2113 @code{internal_reloc}. The symbol index to use is removed from
2114 the @code{offset} field in the symbol table supplied. The
2115 address comes directly from the sum of the section base
2116 address and the relocation offset; the type is dug directly
2117 from the howto field. Then the @code{internal_reloc} is
2118 swapped into the shape of an @code{external_reloc} and written
2125 static int compare_arelent_ptr
PARAMS ((const PTR
, const PTR
));
2127 /* AUX's ld wants relocations to be sorted */
2129 compare_arelent_ptr (x
, y
)
2133 const arelent
**a
= (const arelent
**) x
;
2134 const arelent
**b
= (const arelent
**) y
;
2135 bfd_size_type aadr
= (*a
)->address
;
2136 bfd_size_type badr
= (*b
)->address
;
2138 return (aadr
< badr
? -1 : badr
< aadr
? 1 : 0);
2141 #endif /* TARG_AUX */
2144 coff_write_relocs (abfd
, first_undef
)
2150 for (s
= abfd
->sections
; s
!= (asection
*) NULL
; s
= s
->next
)
2153 struct external_reloc dst
;
2159 /* sort relocations before we write them out */
2160 p
= (arelent
**) bfd_malloc (s
->reloc_count
* sizeof (arelent
*));
2161 if (p
== NULL
&& s
->reloc_count
> 0)
2163 memcpy (p
, s
->orelocation
, s
->reloc_count
* sizeof (arelent
*));
2164 qsort (p
, s
->reloc_count
, sizeof (arelent
*), compare_arelent_ptr
);
2167 if (bfd_seek (abfd
, s
->rel_filepos
, SEEK_SET
) != 0)
2169 for (i
= 0; i
< s
->reloc_count
; i
++)
2171 struct internal_reloc n
;
2173 memset ((PTR
) & n
, 0, sizeof (n
));
2175 /* Now we've renumbered the symbols we know where the
2176 undefined symbols live in the table. Check the reloc
2177 entries for symbols who's output bfd isn't the right one.
2178 This is because the symbol was undefined (which means
2179 that all the pointers are never made to point to the same
2180 place). This is a bad thing,'cause the symbols attached
2181 to the output bfd are indexed, so that the relocation
2182 entries know which symbol index they point to. So we
2183 have to look up the output symbol here. */
2185 if (q
->sym_ptr_ptr
[0]->the_bfd
!= abfd
)
2188 const char *sname
= q
->sym_ptr_ptr
[0]->name
;
2189 asymbol
**outsyms
= abfd
->outsymbols
;
2190 for (i
= first_undef
; outsyms
[i
]; i
++)
2192 const char *intable
= outsyms
[i
]->name
;
2193 if (strcmp (intable
, sname
) == 0) {
2194 /* got a hit, so repoint the reloc */
2195 q
->sym_ptr_ptr
= outsyms
+ i
;
2201 n
.r_vaddr
= q
->address
+ s
->vma
;
2204 /* The 29k const/consth reloc pair is a real kludge. The consth
2205 part doesn't have a symbol; it has an offset. So rebuilt
2207 if (q
->howto
->type
== R_IHCONST
)
2208 n
.r_symndx
= q
->addend
;
2213 if (q
->sym_ptr_ptr
== bfd_abs_section_ptr
->symbol_ptr_ptr
)
2214 /* This is a relocation relative to the absolute symbol. */
2218 n
.r_symndx
= get_index ((*(q
->sym_ptr_ptr
)));
2219 /* Take notice if the symbol reloc points to a symbol
2220 we don't have in our symbol table. What should we
2222 if (n
.r_symndx
> obj_conv_table_size (abfd
))
2227 #ifdef SWAP_OUT_RELOC_OFFSET
2228 n
.r_offset
= q
->addend
;
2232 /* Work out reloc type from what is required */
2233 SELECT_RELOC (n
, q
->howto
);
2235 n
.r_type
= q
->howto
->type
;
2237 coff_swap_reloc_out (abfd
, &n
, &dst
);
2238 if (bfd_write ((PTR
) & dst
, 1, RELSZ
, abfd
) != RELSZ
)
2251 /* Set flags and magic number of a coff file from architecture and machine
2252 type. Result is true if we can represent the arch&type, false if not. */
2255 coff_set_flags (abfd
, magicp
, flagsp
)
2257 unsigned int *magicp ATTRIBUTE_UNUSED
;
2258 unsigned short *flagsp ATTRIBUTE_UNUSED
;
2260 switch (bfd_get_arch (abfd
))
2265 switch (bfd_get_mach (abfd
))
2267 case bfd_mach_z8001
:
2270 case bfd_mach_z8002
:
2284 *magicp
= I960ROMAGIC
;
2286 ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC :
2287 I960RWMAGIC); FIXME???
2289 switch (bfd_get_mach (abfd
))
2291 case bfd_mach_i960_core
:
2294 case bfd_mach_i960_kb_sb
:
2297 case bfd_mach_i960_mc
:
2300 case bfd_mach_i960_xa
:
2303 case bfd_mach_i960_ca
:
2306 case bfd_mach_i960_ka_sa
:
2309 case bfd_mach_i960_jx
:
2312 case bfd_mach_i960_hx
:
2325 case bfd_arch_tic30
:
2326 *magicp
= TIC30MAGIC
;
2329 #ifdef TIC80_ARCH_MAGIC
2330 case bfd_arch_tic80
:
2331 *magicp
= TIC80_ARCH_MAGIC
;
2336 * magicp
= ARMMAGIC
;
2338 if (APCS_SET (abfd
))
2340 if (APCS_26_FLAG (abfd
))
2341 * flagsp
|= F_APCS26
;
2343 if (APCS_FLOAT_FLAG (abfd
))
2344 * flagsp
|= F_APCS_FLOAT
;
2346 if (PIC_FLAG (abfd
))
2349 if (INTERWORK_SET (abfd
) && INTERWORK_FLAG (abfd
))
2350 * flagsp
|= F_INTERWORK
;
2351 switch (bfd_get_mach (abfd
))
2353 case bfd_mach_arm_2
: * flagsp
|= F_ARM_2
; break;
2354 case bfd_mach_arm_2a
: * flagsp
|= F_ARM_2a
; break;
2355 case bfd_mach_arm_3
: * flagsp
|= F_ARM_3
; break;
2356 case bfd_mach_arm_3M
: * flagsp
|= F_ARM_3M
; break;
2357 case bfd_mach_arm_4
: * flagsp
|= F_ARM_4
; break;
2358 case bfd_mach_arm_4T
: * flagsp
|= F_ARM_4T
; break;
2359 case bfd_mach_arm_5
: * flagsp
|= F_ARM_5
; break;
2360 case bfd_mach_arm_5T
: * flagsp
|= F_ARM_5
; break; /* XXX - we do not have an F_ARM_5T */
2365 case bfd_arch_powerpc
:
2372 *magicp
= I386MAGIC
;
2374 /* Just overwrite the usual value if we're doing Lynx. */
2375 *magicp
= LYNXCOFFMAGIC
;
2382 *magicp
= I860MAGIC
;
2388 #ifdef APOLLOM68KMAGIC
2389 *magicp
= APOLLO_COFF_VERSION_NUMBER
;
2391 /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */
2392 #ifdef NAMES_HAVE_UNDERSCORE
2393 *magicp
= MC68KBCSMAGIC
;
2395 *magicp
= MC68MAGIC
;
2399 /* Just overwrite the usual value if we're doing Lynx. */
2400 *magicp
= LYNXCOFFMAGIC
;
2408 *magicp
= MC88OMAGIC
;
2413 case bfd_arch_h8300
:
2414 switch (bfd_get_mach (abfd
))
2416 case bfd_mach_h8300
:
2417 *magicp
= H8300MAGIC
;
2419 case bfd_mach_h8300h
:
2420 *magicp
= H8300HMAGIC
;
2422 case bfd_mach_h8300s
:
2423 *magicp
= H8300SMAGIC
;
2429 #ifdef SH_ARCH_MAGIC_BIG
2431 if (bfd_big_endian (abfd
))
2432 *magicp
= SH_ARCH_MAGIC_BIG
;
2434 *magicp
= SH_ARCH_MAGIC_LITTLE
;
2440 case bfd_arch_sparc
:
2441 *magicp
= SPARCMAGIC
;
2443 /* Just overwrite the usual value if we're doing Lynx. */
2444 *magicp
= LYNXCOFFMAGIC
;
2451 case bfd_arch_h8500
:
2452 *magicp
= H8500MAGIC
;
2456 #ifdef A29K_MAGIC_BIG
2458 if (bfd_big_endian (abfd
))
2459 *magicp
= A29K_MAGIC_BIG
;
2461 *magicp
= A29K_MAGIC_LITTLE
;
2467 case bfd_arch_we32k
:
2468 *magicp
= WE32KMAGIC
;
2474 case bfd_arch_rs6000
:
2476 case bfd_arch_powerpc
:
2478 *magicp
= U802TOCMAGIC
;
2484 case bfd_arch_mcore
:
2485 * magicp
= MCOREMAGIC
;
2489 default: /* Unknown architecture */
2490 /* return false; -- fall through to "return false" below, to avoid
2491 "statement never reached" errors on the one below. */
2500 coff_set_arch_mach (abfd
, arch
, machine
)
2502 enum bfd_architecture arch
;
2503 unsigned long machine
;
2506 unsigned short dummy2
;
2508 if (! bfd_default_set_arch_mach (abfd
, arch
, machine
))
2511 if (arch
!= bfd_arch_unknown
&&
2512 coff_set_flags (abfd
, &dummy1
, &dummy2
) != true)
2513 return false; /* We can't represent this type */
2515 return true; /* We're easy ... */
2519 /* Calculate the file position for each section. */
2522 #define ALIGN_SECTIONS_IN_FILE
2525 #undef ALIGN_SECTIONS_IN_FILE
2529 coff_compute_section_file_positions (abfd
)
2533 asection
*previous
= (asection
*) NULL
;
2534 file_ptr sofar
= FILHSZ
;
2535 boolean align_adjust
;
2537 #ifdef ALIGN_SECTIONS_IN_FILE
2542 /* On XCOFF, if we have symbols, set up the .debug section. */
2543 if (bfd_get_symcount (abfd
) > 0)
2546 bfd_size_type i
, symcount
;
2550 symcount
= bfd_get_symcount (abfd
);
2551 for (symp
= abfd
->outsymbols
, i
= 0; i
< symcount
; symp
++, i
++)
2553 coff_symbol_type
*cf
;
2555 cf
= coff_symbol_from (abfd
, *symp
);
2557 && cf
->native
!= NULL
2558 && SYMNAME_IN_DEBUG (&cf
->native
->u
.syment
))
2562 len
= strlen (bfd_asymbol_name (*symp
));
2571 dsec
= bfd_make_section_old_way (abfd
, ".debug");
2574 dsec
->_raw_size
= sz
;
2575 dsec
->flags
|= SEC_HAS_CONTENTS
;
2580 #ifdef COFF_IMAGE_WITH_PE
2582 if (coff_data (abfd
)->link_info
)
2584 page_size
= pe_data (abfd
)->pe_opthdr
.FileAlignment
;
2587 page_size
= PE_DEF_FILE_ALIGNMENT
;
2589 #ifdef COFF_PAGE_SIZE
2590 int page_size
= COFF_PAGE_SIZE
;
2594 if (bfd_get_start_address (abfd
))
2596 /* A start address may have been added to the original file. In this
2597 case it will need an optional header to record it. */
2598 abfd
->flags
|= EXEC_P
;
2601 if (abfd
->flags
& EXEC_P
)
2604 else if (xcoff_data (abfd
)->full_aouthdr
)
2607 sofar
+= SMALL_AOUTSZ
;
2610 sofar
+= abfd
->section_count
* SCNHSZ
;
2613 /* XCOFF handles overflows in the reloc and line number count fields
2614 by allocating a new section header to hold the correct counts. */
2615 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
2616 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
2620 align_adjust
= false;
2621 for (current
= abfd
->sections
, count
= 1;
2622 current
!= (asection
*) NULL
;
2623 current
= current
->next
, ++count
)
2625 #ifdef COFF_IMAGE_WITH_PE
2626 /* The NT loader does not want empty section headers, so we omit
2627 them. We don't actually remove the section from the BFD,
2628 although we probably should. This matches code in
2629 coff_write_object_contents. */
2630 if (current
->_raw_size
== 0)
2632 current
->target_index
= -1;
2638 current
->target_index
= count
;
2640 /* Only deal with sections which have contents */
2641 if (!(current
->flags
& SEC_HAS_CONTENTS
))
2644 /* Align the sections in the file to the same boundary on
2645 which they are aligned in virtual memory. I960 doesn't
2646 do this (FIXME) so we can stay in sync with Intel. 960
2647 doesn't yet page from files... */
2648 #ifdef ALIGN_SECTIONS_IN_FILE
2649 if ((abfd
->flags
& EXEC_P
) != 0)
2651 /* make sure this section is aligned on the right boundary - by
2652 padding the previous section up if necessary */
2655 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
2656 if (previous
!= (asection
*) NULL
)
2658 previous
->_raw_size
+= sofar
- old_sofar
;
2664 /* In demand paged files the low order bits of the file offset
2665 must match the low order bits of the virtual address. */
2666 #ifdef COFF_PAGE_SIZE
2667 if ((abfd
->flags
& D_PAGED
) != 0
2668 && (current
->flags
& SEC_ALLOC
) != 0)
2669 sofar
+= (current
->vma
- sofar
) % page_size
;
2671 current
->filepos
= sofar
;
2673 #ifdef COFF_IMAGE_WITH_PE
2674 /* With PE we have to pad each section to be a multiple of its
2675 page size too, and remember both sizes. */
2677 if (coff_section_data (abfd
, current
) == NULL
)
2679 current
->used_by_bfd
=
2680 (PTR
) bfd_zalloc (abfd
, sizeof (struct coff_section_tdata
));
2681 if (current
->used_by_bfd
== NULL
)
2684 if (pei_section_data (abfd
, current
) == NULL
)
2686 coff_section_data (abfd
, current
)->tdata
=
2687 (PTR
) bfd_zalloc (abfd
, sizeof (struct pei_section_tdata
));
2688 if (coff_section_data (abfd
, current
)->tdata
== NULL
)
2691 if (pei_section_data (abfd
, current
)->virt_size
== 0)
2692 pei_section_data (abfd
, current
)->virt_size
= current
->_raw_size
;
2694 current
->_raw_size
= (current
->_raw_size
+ page_size
-1) & -page_size
;
2697 sofar
+= current
->_raw_size
;
2699 #ifdef ALIGN_SECTIONS_IN_FILE
2700 /* make sure that this section is of the right size too */
2701 if ((abfd
->flags
& EXEC_P
) == 0)
2703 bfd_size_type old_size
;
2705 old_size
= current
->_raw_size
;
2706 current
->_raw_size
= BFD_ALIGN (current
->_raw_size
,
2707 1 << current
->alignment_power
);
2708 align_adjust
= current
->_raw_size
!= old_size
;
2709 sofar
+= current
->_raw_size
- old_size
;
2714 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
2715 align_adjust
= sofar
!= old_sofar
;
2716 current
->_raw_size
+= sofar
- old_sofar
;
2720 #ifdef COFF_IMAGE_WITH_PE
2721 /* For PE we need to make sure we pad out to the aligned
2722 _raw_size, in case the caller only writes out data to the
2723 unaligned _raw_size. */
2724 if (pei_section_data (abfd
, current
)->virt_size
< current
->_raw_size
)
2725 align_adjust
= true;
2729 /* Force .lib sections to start at zero. The vma is then
2730 incremented in coff_set_section_contents. This is right for
2732 if (strcmp (current
->name
, _LIB
) == 0)
2733 bfd_set_section_vma (abfd
, current
, 0);
2739 /* It is now safe to write to the output file. If we needed an
2740 alignment adjustment for the last section, then make sure that
2741 there is a byte at offset sofar. If there are no symbols and no
2742 relocs, then nothing follows the last section. If we don't force
2743 the last byte out, then the file may appear to be truncated. */
2749 if (bfd_seek (abfd
, sofar
- 1, SEEK_SET
) != 0
2750 || bfd_write (&b
, 1, 1, abfd
) != 1)
2754 /* Make sure the relocations are aligned. We don't need to make
2755 sure that this byte exists, because it will only matter if there
2756 really are relocs. */
2757 sofar
= BFD_ALIGN (sofar
, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER
);
2759 obj_relocbase (abfd
) = sofar
;
2760 abfd
->output_has_begun
= true;
2767 /* This can never work, because it is called too late--after the
2768 section positions have been set. I can't figure out what it is
2769 for, so I am going to disable it--Ian Taylor 20 March 1996. */
2771 /* If .file, .text, .data, .bss symbols are missing, add them. */
2772 /* @@ Should we only be adding missing symbols, or overriding the aux
2773 values for existing section symbols? */
2775 coff_add_missing_symbols (abfd
)
2778 unsigned int nsyms
= bfd_get_symcount (abfd
);
2779 asymbol
**sympp
= abfd
->outsymbols
;
2782 int need_text
= 1, need_data
= 1, need_bss
= 1, need_file
= 1;
2784 for (i
= 0; i
< nsyms
; i
++)
2786 coff_symbol_type
*csym
= coff_symbol_from (abfd
, sympp
[i
]);
2790 /* only do this if there is a coff representation of the input
2792 if (csym
->native
&& csym
->native
->u
.syment
.n_sclass
== C_FILE
)
2797 name
= csym
->symbol
.name
;
2800 if (!strcmp (name
, _TEXT
))
2803 else if (!strcmp (name
, ".wtext"))
2806 else if (!strcmp (name
, _DATA
))
2808 else if (!strcmp (name
, _BSS
))
2812 /* Now i == bfd_get_symcount (abfd). */
2813 /* @@ For now, don't deal with .file symbol. */
2816 if (!need_text
&& !need_data
&& !need_bss
&& !need_file
)
2818 nsyms
+= need_text
+ need_data
+ need_bss
+ need_file
;
2819 sympp2
= (asymbol
**) bfd_alloc (abfd
, nsyms
* sizeof (asymbol
*));
2822 memcpy (sympp2
, sympp
, i
* sizeof (asymbol
*));
2825 /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */
2829 sympp2
[i
++] = coff_section_symbol (abfd
, _TEXT
);
2831 sympp2
[i
++] = coff_section_symbol (abfd
, _DATA
);
2833 sympp2
[i
++] = coff_section_symbol (abfd
, _BSS
);
2834 BFD_ASSERT (i
== nsyms
);
2835 bfd_set_symtab (abfd
, sympp2
, nsyms
);
2844 coff_write_object_contents (abfd
)
2848 boolean hasrelocs
= false;
2849 boolean haslinno
= false;
2851 file_ptr reloc_base
;
2852 file_ptr lineno_base
;
2854 unsigned long reloc_size
= 0;
2855 unsigned long lnno_size
= 0;
2856 boolean long_section_names
;
2857 asection
*text_sec
= NULL
;
2858 asection
*data_sec
= NULL
;
2859 asection
*bss_sec
= NULL
;
2860 struct internal_filehdr internal_f
;
2861 struct internal_aouthdr internal_a
;
2862 #ifdef COFF_LONG_SECTION_NAMES
2863 size_t string_size
= STRING_SIZE_SIZE
;
2866 bfd_set_error (bfd_error_system_call
);
2868 /* Make a pass through the symbol table to count line number entries and
2869 put them into the correct asections */
2871 lnno_size
= coff_count_linenumbers (abfd
) * LINESZ
;
2873 if (abfd
->output_has_begun
== false)
2875 if (! coff_compute_section_file_positions (abfd
))
2879 reloc_base
= obj_relocbase (abfd
);
2881 /* Work out the size of the reloc and linno areas */
2883 for (current
= abfd
->sections
; current
!= NULL
; current
=
2885 reloc_size
+= current
->reloc_count
* RELSZ
;
2887 lineno_base
= reloc_base
+ reloc_size
;
2888 sym_base
= lineno_base
+ lnno_size
;
2890 /* Indicate in each section->line_filepos its actual file address */
2891 for (current
= abfd
->sections
; current
!= NULL
; current
=
2894 if (current
->lineno_count
)
2896 current
->line_filepos
= lineno_base
;
2897 current
->moving_line_filepos
= lineno_base
;
2898 lineno_base
+= current
->lineno_count
* LINESZ
;
2902 current
->line_filepos
= 0;
2904 if (current
->reloc_count
)
2906 current
->rel_filepos
= reloc_base
;
2907 reloc_base
+= current
->reloc_count
* RELSZ
;
2911 current
->rel_filepos
= 0;
2915 /* Write section headers to the file. */
2916 internal_f
.f_nscns
= 0;
2918 if ((abfd
->flags
& EXEC_P
) != 0)
2919 scn_base
= FILHSZ
+ AOUTSZ
;
2924 if (xcoff_data (abfd
)->full_aouthdr
)
2927 scn_base
+= SMALL_AOUTSZ
;
2931 if (bfd_seek (abfd
, scn_base
, SEEK_SET
) != 0)
2934 long_section_names
= false;
2935 for (current
= abfd
->sections
;
2937 current
= current
->next
)
2939 struct internal_scnhdr section
;
2942 /* If we've got a .reloc section, remember. */
2944 #ifdef COFF_IMAGE_WITH_PE
2945 if (strcmp (current
->name
, ".reloc") == 0)
2947 pe_data (abfd
)->has_reloc_section
= 1;
2952 internal_f
.f_nscns
++;
2954 strncpy (section
.s_name
, current
->name
, SCNNMLEN
);
2956 #ifdef COFF_LONG_SECTION_NAMES
2957 /* Handle long section names as in PE. This must be compatible
2958 with the code in coff_write_symbols and _bfd_coff_final_link. */
2962 len
= strlen (current
->name
);
2965 memset (section
.s_name
, 0, SCNNMLEN
);
2966 sprintf (section
.s_name
, "/%lu", (unsigned long) string_size
);
2967 string_size
+= len
+ 1;
2968 long_section_names
= true;
2974 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
2975 Ian Taylor <ian@cygnus.com>. */
2976 if (strcmp (current
->name
, _LIB
) == 0)
2977 section
.s_vaddr
= 0;
2980 section
.s_vaddr
= current
->vma
;
2981 section
.s_paddr
= current
->lma
;
2982 section
.s_size
= current
->_raw_size
;
2985 section
.s_paddr
= 0;
2987 #ifdef COFF_IMAGE_WITH_PE
2988 /* Reminder: s_paddr holds the virtual size of the section. */
2989 if (coff_section_data (abfd
, current
) != NULL
2990 && pei_section_data (abfd
, current
) != NULL
)
2991 section
.s_paddr
= pei_section_data (abfd
, current
)->virt_size
;
2993 section
.s_paddr
= 0;
2997 If this section has no size or is unloadable then the scnptr
3000 if (current
->_raw_size
== 0 ||
3001 (current
->flags
& (SEC_LOAD
| SEC_HAS_CONTENTS
)) == 0)
3003 section
.s_scnptr
= 0;
3007 section
.s_scnptr
= current
->filepos
;
3009 section
.s_relptr
= current
->rel_filepos
;
3010 section
.s_lnnoptr
= current
->line_filepos
;
3011 section
.s_nreloc
= current
->reloc_count
;
3012 section
.s_nlnno
= current
->lineno_count
;
3013 if (current
->reloc_count
!= 0)
3015 if (current
->lineno_count
!= 0)
3019 /* Indicate the use of an XCOFF overflow section header. */
3020 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3022 section
.s_nreloc
= 0xffff;
3023 section
.s_nlnno
= 0xffff;
3027 section
.s_flags
= sec_to_styp_flags (current
->name
, current
->flags
);
3029 if (!strcmp (current
->name
, _TEXT
))
3033 else if (!strcmp (current
->name
, _DATA
))
3037 else if (!strcmp (current
->name
, _BSS
))
3043 section
.s_align
= (current
->alignment_power
3044 ? 1 << current
->alignment_power
3048 section
.s_flags
|= (current
->alignment_power
& 0xF) << 8;
3052 #ifdef COFF_IMAGE_WITH_PE
3053 /* Suppress output of the sections if they are null. ld
3054 includes the bss and data sections even if there is no size
3055 assigned to them. NT loader doesn't like it if these section
3056 headers are included if the sections themselves are not
3057 needed. See also coff_compute_section_file_positions. */
3058 if (section
.s_size
== 0)
3059 internal_f
.f_nscns
--;
3064 if (coff_swap_scnhdr_out (abfd
, §ion
, &buff
) == 0
3065 || bfd_write ((PTR
) (&buff
), 1, SCNHSZ
, abfd
) != SCNHSZ
)
3070 /* PE stores COMDAT section information in the symbol table. If
3071 this section is supposed to have some COMDAT info, track down
3072 the symbol in the symbol table and modify it. */
3073 if ((current
->flags
& SEC_LINK_ONCE
) != 0)
3075 unsigned int i
, count
;
3077 coff_symbol_type
*csym
= NULL
;
3081 count
= bfd_get_symcount (abfd
);
3082 for (i
= 0, psym
= abfd
->outsymbols
; i
< count
; i
++, psym
++)
3084 if ((*psym
)->section
!= current
)
3087 /* Remember the location of the first symbol in this
3089 if (psymsec
== NULL
)
3092 /* See if this is the section symbol. */
3093 if (strcmp ((*psym
)->name
, current
->name
) == 0)
3095 csym
= coff_symbol_from (abfd
, *psym
);
3097 || csym
->native
== NULL
3098 || csym
->native
->u
.syment
.n_numaux
< 1
3099 || csym
->native
->u
.syment
.n_sclass
!= C_STAT
3100 || csym
->native
->u
.syment
.n_type
!= T_NULL
)
3103 /* Here *PSYM is the section symbol for CURRENT. */
3110 Note that we might not if we're converting the file from
3111 some other object file format. */
3114 combined_entry_type
*aux
;
3116 /* We don't touch the x_checksum field. The
3117 x_associated field is not currently supported. */
3119 aux
= csym
->native
+ 1;
3120 switch (current
->flags
& SEC_LINK_DUPLICATES
)
3122 case SEC_LINK_DUPLICATES_DISCARD
:
3123 aux
->u
.auxent
.x_scn
.x_comdat
= IMAGE_COMDAT_SELECT_ANY
;
3126 case SEC_LINK_DUPLICATES_ONE_ONLY
:
3127 aux
->u
.auxent
.x_scn
.x_comdat
=
3128 IMAGE_COMDAT_SELECT_NODUPLICATES
;
3131 case SEC_LINK_DUPLICATES_SAME_SIZE
:
3132 aux
->u
.auxent
.x_scn
.x_comdat
=
3133 IMAGE_COMDAT_SELECT_SAME_SIZE
;
3136 case SEC_LINK_DUPLICATES_SAME_CONTENTS
:
3137 aux
->u
.auxent
.x_scn
.x_comdat
=
3138 IMAGE_COMDAT_SELECT_EXACT_MATCH
;
3142 /* The COMDAT symbol must be the first symbol from this
3143 section in the symbol table. In order to make this
3144 work, we move the COMDAT symbol before the first
3145 symbol we found in the search above. It's OK to
3146 rearrange the symbol table at this point, because
3147 coff_renumber_symbols is going to rearrange it
3148 further and fix up all the aux entries. */
3149 if (psym
!= psymsec
)
3155 for (pcopy
= psym
; pcopy
> psymsec
; pcopy
--)
3156 pcopy
[0] = pcopy
[-1];
3161 #endif /* COFF_WITH_PE */
3165 /* XCOFF handles overflows in the reloc and line number count fields
3166 by creating a new section header to hold the correct values. */
3167 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3169 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3171 struct internal_scnhdr scnhdr
;
3174 internal_f
.f_nscns
++;
3175 strncpy (&(scnhdr
.s_name
[0]), current
->name
, 8);
3176 scnhdr
.s_paddr
= current
->reloc_count
;
3177 scnhdr
.s_vaddr
= current
->lineno_count
;
3179 scnhdr
.s_scnptr
= 0;
3180 scnhdr
.s_relptr
= current
->rel_filepos
;
3181 scnhdr
.s_lnnoptr
= current
->line_filepos
;
3182 scnhdr
.s_nreloc
= current
->target_index
;
3183 scnhdr
.s_nlnno
= current
->target_index
;
3184 scnhdr
.s_flags
= STYP_OVRFLO
;
3185 if (coff_swap_scnhdr_out (abfd
, &scnhdr
, &buff
) == 0
3186 || bfd_write ((PTR
) &buff
, 1, SCNHSZ
, abfd
) != SCNHSZ
)
3192 /* OK, now set up the filehdr... */
3194 /* Don't include the internal abs section in the section count */
3197 We will NOT put a fucking timestamp in the header here. Every time you
3198 put it back, I will come in and take it out again. I'm sorry. This
3199 field does not belong here. We fill it with a 0 so it compares the
3200 same but is not a reasonable time. -- gnu@cygnus.com
3202 internal_f
.f_timdat
= 0;
3204 internal_f
.f_flags
= 0;
3206 if (abfd
->flags
& EXEC_P
)
3207 internal_f
.f_opthdr
= AOUTSZ
;
3210 internal_f
.f_opthdr
= 0;
3212 if (xcoff_data (abfd
)->full_aouthdr
)
3213 internal_f
.f_opthdr
= AOUTSZ
;
3215 internal_f
.f_opthdr
= SMALL_AOUTSZ
;
3220 internal_f
.f_flags
|= F_RELFLG
;
3222 internal_f
.f_flags
|= F_LNNO
;
3223 if (abfd
->flags
& EXEC_P
)
3224 internal_f
.f_flags
|= F_EXEC
;
3226 /* FIXME: this is wrong for PPC_PE! */
3227 if (bfd_little_endian (abfd
))
3228 internal_f
.f_flags
|= F_AR32WR
;
3230 internal_f
.f_flags
|= F_AR32W
;
3232 #ifdef TIC80_TARGET_ID
3233 internal_f
.f_target_id
= TIC80_TARGET_ID
;
3237 FIXME, should do something about the other byte orders and
3242 if ((abfd
->flags
& DYNAMIC
) != 0)
3243 internal_f
.f_flags
|= F_SHROBJ
;
3244 if (bfd_get_section_by_name (abfd
, _LOADER
) != NULL
)
3245 internal_f
.f_flags
|= F_DYNLOAD
;
3248 memset (&internal_a
, 0, sizeof internal_a
);
3250 /* Set up architecture-dependent stuff */
3253 unsigned int magic
= 0;
3254 unsigned short flags
= 0;
3255 coff_set_flags (abfd
, &magic
, &flags
);
3256 internal_f
.f_magic
= magic
;
3257 internal_f
.f_flags
|= flags
;
3258 /* ...and the "opt"hdr... */
3261 #ifdef ULTRA3 /* NYU's machine */
3262 /* FIXME: This is a bogus check. I really want to see if there
3263 * is a .shbss or a .shdata section, if so then set the magic
3264 * number to indicate a shared data executable.
3266 if (internal_f
.f_nscns
>= 7)
3267 internal_a
.magic
= SHMAGIC
; /* Shared magic */
3270 internal_a
.magic
= NMAGIC
; /* Assume separate i/d */
3271 #define __A_MAGIC_SET__
3274 internal_a
.magic
= TIC80_ARCH_MAGIC
;
3275 #define __A_MAGIC_SET__
3278 /* FIXME: What are the a.out magic numbers for the i860? */
3279 internal_a
.magic
= 0;
3280 #define __A_MAGIC_SET__
3283 internal_a
.magic
= (magic
== I960ROMAGIC
? NMAGIC
: OMAGIC
);
3284 #define __A_MAGIC_SET__
3287 #define __A_MAGIC_SET__
3288 internal_a
.magic
= PAGEMAGICBCS
;
3292 #define __A_MAGIC_SET__
3293 internal_a
.magic
= APOLLO_COFF_VERSION_NUMBER
;
3296 #if defined(M68) || defined(WE32K) || defined(M68K)
3297 #define __A_MAGIC_SET__
3299 internal_a
.magic
= LYNXCOFFMAGIC
;
3301 #if defined(TARG_AUX)
3302 internal_a
.magic
= (abfd
->flags
& D_PAGED
? PAGEMAGICPEXECPAGED
:
3303 abfd
->flags
& WP_TEXT
? PAGEMAGICPEXECSWAPPED
:
3304 PAGEMAGICEXECSWAPPED
);
3306 #if defined (PAGEMAGICPEXECPAGED)
3307 internal_a
.magic
= PAGEMAGICPEXECPAGED
;
3309 #endif /* TARG_AUX */
3311 #endif /* M68 || WE32K || M68K */
3314 #define __A_MAGIC_SET__
3315 internal_a
.magic
= ZMAGIC
;
3319 #define __A_MAGIC_SET__
3320 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
3323 #if defined MCORE_PE
3324 #define __A_MAGIC_SET__
3325 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
3329 #define __A_MAGIC_SET__
3331 internal_a
.magic
= LYNXCOFFMAGIC
;
3333 internal_a
.magic
= ZMAGIC
;
3338 #define __A_MAGIC_SET__
3340 internal_a
.magic
= LYNXCOFFMAGIC
;
3345 #define __A_MAGIC_SET__
3346 internal_a
.magic
= (abfd
->flags
& D_PAGED
) ? RS6K_AOUTHDR_ZMAGIC
:
3347 (abfd
->flags
& WP_TEXT
) ? RS6K_AOUTHDR_NMAGIC
:
3348 RS6K_AOUTHDR_OMAGIC
;
3351 #ifndef __A_MAGIC_SET__
3352 #include "Your aouthdr magic number is not being set!"
3354 #undef __A_MAGIC_SET__
3358 /* FIXME: Does anybody ever set this to another value? */
3359 internal_a
.vstamp
= 0;
3361 /* Now should write relocs, strings, syms */
3362 obj_sym_filepos (abfd
) = sym_base
;
3364 if (bfd_get_symcount (abfd
) != 0)
3368 if (!coff_add_missing_symbols (abfd
))
3371 if (!coff_renumber_symbols (abfd
, &firstundef
))
3373 coff_mangle_symbols (abfd
);
3374 if (! coff_write_symbols (abfd
))
3376 if (! coff_write_linenumbers (abfd
))
3378 if (! coff_write_relocs (abfd
, firstundef
))
3381 #ifdef COFF_LONG_SECTION_NAMES
3382 else if (long_section_names
)
3384 /* If we have long section names we have to write out the string
3385 table even if there are no symbols. */
3386 if (! coff_write_symbols (abfd
))
3390 #ifdef COFF_IMAGE_WITH_PE
3392 else if ((abfd
->flags
& EXEC_P
) != 0)
3396 /* PowerPC PE appears to require that all executable files be
3397 rounded up to the page size. */
3400 BFD_ALIGN (sym_base
, COFF_PAGE_SIZE
) - 1,
3402 || bfd_write (&b
, 1, 1, abfd
) != 1)
3408 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
3409 backend linker, and obj_raw_syment_count is not valid until after
3410 coff_write_symbols is called. */
3411 if (obj_raw_syment_count (abfd
) != 0)
3413 internal_f
.f_symptr
= sym_base
;
3415 /* AIX appears to require that F_RELFLG not be set if there are
3416 local symbols but no relocations. */
3417 internal_f
.f_flags
&=~ F_RELFLG
;
3422 if (long_section_names
)
3423 internal_f
.f_symptr
= sym_base
;
3425 internal_f
.f_symptr
= 0;
3426 internal_f
.f_flags
|= F_LSYMS
;
3431 internal_a
.tsize
= bfd_get_section_size_before_reloc (text_sec
);
3432 internal_a
.text_start
= internal_a
.tsize
? text_sec
->vma
: 0;
3436 internal_a
.dsize
= bfd_get_section_size_before_reloc (data_sec
);
3437 internal_a
.data_start
= internal_a
.dsize
? data_sec
->vma
: 0;
3441 internal_a
.bsize
= bfd_get_section_size_before_reloc (bss_sec
);
3442 if (internal_a
.bsize
&& bss_sec
->vma
< internal_a
.data_start
)
3443 internal_a
.data_start
= bss_sec
->vma
;
3446 internal_a
.entry
= bfd_get_start_address (abfd
);
3447 internal_f
.f_nsyms
= obj_raw_syment_count (abfd
);
3450 if (xcoff_data (abfd
)->full_aouthdr
)
3453 asection
*loader_sec
;
3455 internal_a
.vstamp
= 1;
3457 internal_a
.o_snentry
= xcoff_data (abfd
)->snentry
;
3458 if (internal_a
.o_snentry
== 0)
3459 internal_a
.entry
= (bfd_vma
) -1;
3461 if (text_sec
!= NULL
)
3463 internal_a
.o_sntext
= text_sec
->target_index
;
3464 internal_a
.o_algntext
= bfd_get_section_alignment (abfd
, text_sec
);
3468 internal_a
.o_sntext
= 0;
3469 internal_a
.o_algntext
= 0;
3471 if (data_sec
!= NULL
)
3473 internal_a
.o_sndata
= data_sec
->target_index
;
3474 internal_a
.o_algndata
= bfd_get_section_alignment (abfd
, data_sec
);
3478 internal_a
.o_sndata
= 0;
3479 internal_a
.o_algndata
= 0;
3481 loader_sec
= bfd_get_section_by_name (abfd
, ".loader");
3482 if (loader_sec
!= NULL
)
3483 internal_a
.o_snloader
= loader_sec
->target_index
;
3485 internal_a
.o_snloader
= 0;
3486 if (bss_sec
!= NULL
)
3487 internal_a
.o_snbss
= bss_sec
->target_index
;
3489 internal_a
.o_snbss
= 0;
3491 toc
= xcoff_data (abfd
)->toc
;
3492 internal_a
.o_toc
= toc
;
3493 internal_a
.o_sntoc
= xcoff_data (abfd
)->sntoc
;
3495 internal_a
.o_modtype
= xcoff_data (abfd
)->modtype
;
3496 if (xcoff_data (abfd
)->cputype
!= -1)
3497 internal_a
.o_cputype
= xcoff_data (abfd
)->cputype
;
3500 switch (bfd_get_arch (abfd
))
3502 case bfd_arch_rs6000
:
3503 internal_a
.o_cputype
= 4;
3505 case bfd_arch_powerpc
:
3506 if (bfd_get_mach (abfd
) == 0)
3507 internal_a
.o_cputype
= 3;
3509 internal_a
.o_cputype
= 1;
3515 internal_a
.o_maxstack
= xcoff_data (abfd
)->maxstack
;
3516 internal_a
.o_maxdata
= xcoff_data (abfd
)->maxdata
;
3520 /* now write them */
3521 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
) != 0)
3525 coff_swap_filehdr_out (abfd
, (PTR
) & internal_f
, (PTR
) buff
);
3526 if (bfd_write ((PTR
) buff
, 1, FILHSZ
, abfd
) != FILHSZ
)
3529 if (abfd
->flags
& EXEC_P
)
3531 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
3532 include/coff/pe.h sets AOUTSZ == sizeof(PEAOUTHDR)) */
3534 coff_swap_aouthdr_out (abfd
, (PTR
) & internal_a
, (PTR
) buff
);
3535 if (bfd_write ((PTR
) buff
, 1, AOUTSZ
, abfd
) != AOUTSZ
)
3544 /* XCOFF seems to always write at least a small a.out header. */
3545 coff_swap_aouthdr_out (abfd
, (PTR
) &internal_a
, (PTR
) &buff
);
3546 if (xcoff_data (abfd
)->full_aouthdr
)
3549 size
= SMALL_AOUTSZ
;
3550 if (bfd_write ((PTR
) &buff
, 1, size
, abfd
) != size
)
3559 coff_set_section_contents (abfd
, section
, location
, offset
, count
)
3564 bfd_size_type count
;
3566 if (abfd
->output_has_begun
== false) /* set by bfd.c handler */
3568 if (! coff_compute_section_file_positions (abfd
))
3572 #if defined(_LIB) && !defined(TARG_AUX)
3574 /* The physical address field of a .lib section is used to hold the
3575 number of shared libraries in the section. This code counts the
3576 number of sections being written, and increments the lma field
3579 I have found no documentation on the contents of this section.
3580 Experimentation indicates that the section contains zero or more
3581 records, each of which has the following structure:
3583 - a (four byte) word holding the length of this record, in words,
3584 - a word that always seems to be set to "2",
3585 - the path to a shared library, null-terminated and then padded
3586 to a whole word boundary.
3588 bfd_assert calls have been added to alert if an attempt is made
3589 to write a section which doesn't follow these assumptions. The
3590 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
3591 <robertl@arnet.com> (Thanks!).
3593 Gvran Uddeborg <gvran@uddeborg.pp.se> */
3595 if (strcmp (section
->name
, _LIB
) == 0)
3597 bfd_byte
*rec
, *recend
;
3599 rec
= (bfd_byte
*) location
;
3600 recend
= rec
+ count
;
3601 while (rec
< recend
)
3604 rec
+= bfd_get_32 (abfd
, rec
) * 4;
3607 BFD_ASSERT (rec
== recend
);
3612 /* Don't write out bss sections - one way to do this is to
3613 see if the filepos has not been set. */
3614 if (section
->filepos
== 0)
3617 if (bfd_seek (abfd
, (file_ptr
) (section
->filepos
+ offset
), SEEK_SET
) != 0)
3622 return (bfd_write (location
, 1, count
, abfd
) == count
) ? true : false;
3628 coff_close_and_cleanup (abfd
)
3631 if (!bfd_read_p (abfd
))
3632 switch (abfd
->format
)
3635 if (!_bfd_write_archive_contents (abfd
))
3639 if (!coff_write_object_contents (abfd
))
3643 bfd_set_error (bfd_error_invalid_operation
);
3647 /* We depend on bfd_close to free all the memory on the objalloc. */
3654 buy_and_read (abfd
, where
, seek_direction
, size
)
3660 PTR area
= (PTR
) bfd_alloc (abfd
, size
);
3663 if (bfd_seek (abfd
, where
, seek_direction
) != 0
3664 || bfd_read (area
, 1, size
, abfd
) != size
)
3667 } /* buy_and_read() */
3673 Creating the linenumber table is done by reading in the entire
3674 coff linenumber table, and creating another table for internal use.
3676 A coff linenumber table is structured so that each function
3677 is marked as having a line number of 0. Each line within the
3678 function is an offset from the first line in the function. The
3679 base of the line number information for the table is stored in
3680 the symbol associated with the function.
3682 Note: The PE format uses line number 0 for a flag indicating a
3685 The information is copied from the external to the internal
3686 table, and each symbol which marks a function is marked by
3689 How does this work ?
3694 coff_slurp_line_table (abfd
, asect
)
3698 LINENO
*native_lineno
;
3699 alent
*lineno_cache
;
3701 BFD_ASSERT (asect
->lineno
== (alent
*) NULL
);
3703 native_lineno
= (LINENO
*) buy_and_read (abfd
,
3704 asect
->line_filepos
,
3707 asect
->lineno_count
));
3709 (alent
*) bfd_alloc (abfd
, (size_t) ((asect
->lineno_count
+ 1) * sizeof (alent
)));
3710 if (lineno_cache
== NULL
)
3714 unsigned int counter
= 0;
3715 alent
*cache_ptr
= lineno_cache
;
3716 LINENO
*src
= native_lineno
;
3718 while (counter
< asect
->lineno_count
)
3720 struct internal_lineno dst
;
3721 coff_swap_lineno_in (abfd
, src
, &dst
);
3722 cache_ptr
->line_number
= dst
.l_lnno
;
3724 if (cache_ptr
->line_number
== 0)
3728 coff_symbol_type
*sym
;
3731 symndx
= dst
.l_addr
.l_symndx
;
3733 || (unsigned long) symndx
>= obj_raw_syment_count (abfd
))
3735 (*_bfd_error_handler
)
3736 (_("%s: warning: illegal symbol index %ld in line numbers"),
3737 bfd_get_filename (abfd
), dst
.l_addr
.l_symndx
);
3741 /* FIXME: We should not be casting between ints and
3742 pointers like this. */
3743 sym
= ((coff_symbol_type
*)
3744 ((symndx
+ obj_raw_syments (abfd
))
3745 ->u
.syment
._n
._n_n
._n_zeroes
));
3746 cache_ptr
->u
.sym
= (asymbol
*) sym
;
3747 if (sym
->lineno
!= NULL
&& ! warned
)
3749 (*_bfd_error_handler
)
3750 (_("%s: warning: duplicate line number information for `%s'"),
3751 bfd_get_filename (abfd
),
3752 bfd_asymbol_name (&sym
->symbol
));
3754 sym
->lineno
= cache_ptr
;
3758 cache_ptr
->u
.offset
= dst
.l_addr
.l_paddr
3759 - bfd_section_vma (abfd
, asect
);
3760 } /* If no linenumber expect a symbol index */
3766 cache_ptr
->line_number
= 0;
3769 asect
->lineno
= lineno_cache
;
3770 /* FIXME, free native_lineno here, or use alloca or something. */
3774 /* Slurp in the symbol table, converting it to generic form. Note
3775 that if coff_relocate_section is defined, the linker will read
3776 symbols via coff_link_add_symbols, rather than via this routine. */
3779 coff_slurp_symbol_table (abfd
)
3782 combined_entry_type
*native_symbols
;
3783 coff_symbol_type
*cached_area
;
3784 unsigned int *table_ptr
;
3786 unsigned int number_of_symbols
= 0;
3788 if (obj_symbols (abfd
))
3791 /* Read in the symbol table */
3792 if ((native_symbols
= coff_get_normalized_symtab (abfd
)) == NULL
)
3797 /* Allocate enough room for all the symbols in cached form */
3798 cached_area
= ((coff_symbol_type
*)
3800 (obj_raw_syment_count (abfd
)
3801 * sizeof (coff_symbol_type
))));
3803 if (cached_area
== NULL
)
3805 table_ptr
= ((unsigned int *)
3807 (obj_raw_syment_count (abfd
)
3808 * sizeof (unsigned int))));
3810 if (table_ptr
== NULL
)
3814 coff_symbol_type
*dst
= cached_area
;
3815 unsigned int last_native_index
= obj_raw_syment_count (abfd
);
3816 unsigned int this_index
= 0;
3817 while (this_index
< last_native_index
)
3819 combined_entry_type
*src
= native_symbols
+ this_index
;
3820 table_ptr
[this_index
] = number_of_symbols
;
3821 dst
->symbol
.the_bfd
= abfd
;
3823 dst
->symbol
.name
= (char *) (src
->u
.syment
._n
._n_n
._n_offset
);
3824 /* We use the native name field to point to the cached field. */
3825 src
->u
.syment
._n
._n_n
._n_zeroes
= (long) dst
;
3826 dst
->symbol
.section
= coff_section_from_bfd_index (abfd
,
3827 src
->u
.syment
.n_scnum
);
3828 dst
->symbol
.flags
= 0;
3829 dst
->done_lineno
= false;
3831 switch (src
->u
.syment
.n_sclass
)
3836 dst
->symbol
.value
= src
->u
.syment
.n_value
- dst
->symbol
.section
->vma
;
3837 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
3838 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
3840 /* Fall through to next case */
3848 case C_THUMBEXTFUNC
:
3854 case C_SYSTEM
: /* System Wide variable */
3857 /* In PE, 0x68 (104) denotes a section symbol */
3859 /* In PE, 0x69 (105) denotes a weak external symbol. */
3862 switch (coff_classify_symbol (abfd
, &src
->u
.syment
))
3864 case COFF_SYMBOL_GLOBAL
:
3865 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
3866 #if defined COFF_WITH_PE
3867 /* PE sets the symbol to a value relative to the
3868 start of the section. */
3869 dst
->symbol
.value
= src
->u
.syment
.n_value
;
3871 dst
->symbol
.value
= (src
->u
.syment
.n_value
3872 - dst
->symbol
.section
->vma
);
3874 if (ISFCN ((src
->u
.syment
.n_type
)))
3876 /* A function ext does not go at the end of a
3878 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
3882 case COFF_SYMBOL_COMMON
:
3883 dst
->symbol
.section
= bfd_com_section_ptr
;
3884 dst
->symbol
.value
= src
->u
.syment
.n_value
;
3887 case COFF_SYMBOL_UNDEFINED
:
3888 dst
->symbol
.section
= bfd_und_section_ptr
;
3889 dst
->symbol
.value
= 0;
3892 case COFF_SYMBOL_PE_SECTION
:
3893 dst
->symbol
.flags
|= BSF_EXPORT
| BSF_SECTION_SYM
;
3894 dst
->symbol
.value
= 0;
3897 case COFF_SYMBOL_LOCAL
:
3898 dst
->symbol
.flags
= BSF_LOCAL
;
3899 #if defined COFF_WITH_PE
3900 /* PE sets the symbol to a value relative to the
3901 start of the section. */
3902 dst
->symbol
.value
= src
->u
.syment
.n_value
;
3904 dst
->symbol
.value
= (src
->u
.syment
.n_value
3905 - dst
->symbol
.section
->vma
);
3907 if (ISFCN ((src
->u
.syment
.n_type
)))
3908 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
3913 /* A symbol with a csect entry should not go at the end. */
3914 if (src
->u
.syment
.n_numaux
> 0)
3915 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
3919 if (src
->u
.syment
.n_sclass
== C_NT_WEAK
)
3920 dst
->symbol
.flags
= BSF_WEAK
;
3921 if (src
->u
.syment
.n_sclass
== C_SECTION
3922 && src
->u
.syment
.n_scnum
> 0)
3924 dst
->symbol
.flags
= BSF_LOCAL
;
3928 if (src
->u
.syment
.n_sclass
== C_WEAKEXT
)
3929 dst
->symbol
.flags
= BSF_WEAK
;
3933 case C_STAT
: /* static */
3935 case C_LEAFSTAT
: /* static leaf procedure */
3938 case C_THUMBSTAT
: /* Thumb static */
3939 case C_THUMBLABEL
: /* Thumb label */
3940 case C_THUMBSTATFUNC
:/* Thumb static function */
3942 case C_LABEL
: /* label */
3943 if (src
->u
.syment
.n_scnum
== N_DEBUG
)
3944 dst
->symbol
.flags
= BSF_DEBUGGING
;
3946 dst
->symbol
.flags
= BSF_LOCAL
;
3948 /* Base the value as an index from the base of the
3949 section, if there is one. */
3950 if (dst
->symbol
.section
)
3952 #if defined COFF_WITH_PE
3953 /* PE sets the symbol to a value relative to the
3954 start of the section. */
3955 dst
->symbol
.value
= src
->u
.syment
.n_value
;
3957 dst
->symbol
.value
= (src
->u
.syment
.n_value
3958 - dst
->symbol
.section
->vma
);
3962 dst
->symbol
.value
= src
->u
.syment
.n_value
;
3965 case C_MOS
: /* member of structure */
3966 case C_EOS
: /* end of structure */
3967 #ifdef NOTDEF /* C_AUTOARG has the same value */
3969 case C_GLBLREG
: /* A29k-specific storage class */
3972 case C_REGPARM
: /* register parameter */
3973 case C_REG
: /* register variable */
3976 case C_AUTOARG
: /* 960-specific storage class */
3979 case C_TPDEF
: /* type definition */
3981 case C_AUTO
: /* automatic variable */
3982 case C_FIELD
: /* bit field */
3983 case C_ENTAG
: /* enumeration tag */
3984 case C_MOE
: /* member of enumeration */
3985 case C_MOU
: /* member of union */
3986 case C_UNTAG
: /* union tag */
3987 dst
->symbol
.flags
= BSF_DEBUGGING
;
3988 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
3991 case C_FILE
: /* file name */
3992 case C_STRTAG
: /* structure tag */
4007 dst
->symbol
.flags
= BSF_DEBUGGING
;
4008 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4012 case C_BINCL
: /* beginning of include file */
4013 case C_EINCL
: /* ending of include file */
4014 /* The value is actually a pointer into the line numbers
4015 of the file. We locate the line number entry, and
4016 set the section to the section which contains it, and
4017 the value to the index in that section. */
4021 dst
->symbol
.flags
= BSF_DEBUGGING
;
4022 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
4023 if (sec
->line_filepos
<= (file_ptr
) src
->u
.syment
.n_value
4024 && ((file_ptr
) (sec
->line_filepos
4025 + sec
->lineno_count
* LINESZ
)
4026 > (file_ptr
) src
->u
.syment
.n_value
))
4029 dst
->symbol
.value
= 0;
4032 dst
->symbol
.section
= sec
;
4033 dst
->symbol
.value
= ((src
->u
.syment
.n_value
4034 - sec
->line_filepos
)
4042 dst
->symbol
.flags
= BSF_DEBUGGING
;
4044 /* The value is actually a symbol index. Save a pointer
4045 to the symbol instead of the index. FIXME: This
4046 should use a union. */
4047 src
->u
.syment
.n_value
=
4048 (long) (native_symbols
+ src
->u
.syment
.n_value
);
4049 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4054 case C_BLOCK
: /* ".bb" or ".eb" */
4055 case C_FCN
: /* ".bf" or ".ef" */
4056 case C_EFCN
: /* physical end of function */
4057 dst
->symbol
.flags
= BSF_LOCAL
;
4058 #if defined COFF_WITH_PE
4059 /* PE sets the symbol to a value relative to the start
4061 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4063 /* Base the value as an index from the base of the
4065 dst
->symbol
.value
= (src
->u
.syment
.n_value
4066 - dst
->symbol
.section
->vma
);
4071 /* PE DLLs sometimes have zeroed out symbols for some
4072 reason. Just ignore them without a warning. */
4073 if (src
->u
.syment
.n_type
== 0
4074 && src
->u
.syment
.n_value
== 0
4075 && src
->u
.syment
.n_scnum
== 0)
4078 case C_EXTDEF
: /* external definition */
4079 case C_ULABEL
: /* undefined label */
4080 case C_USTATIC
: /* undefined static */
4081 #ifndef COFF_WITH_PE
4082 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4083 class to represent a section symbol */
4084 case C_LINE
: /* line # reformatted as symbol table entry */
4085 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4086 case C_ALIAS
: /* duplicate tag */
4088 /* New storage classes for TIc80 */
4090 case C_UEXT
: /* Tentative external definition */
4092 case C_STATLAB
: /* Static load time label */
4093 case C_EXTLAB
: /* External load time label */
4094 case C_HIDDEN
: /* ext symbol in dmert public lib */
4096 (*_bfd_error_handler
)
4097 (_("%s: Unrecognized storage class %d for %s symbol `%s'"),
4098 bfd_get_filename (abfd
), src
->u
.syment
.n_sclass
,
4099 dst
->symbol
.section
->name
, dst
->symbol
.name
);
4100 dst
->symbol
.flags
= BSF_DEBUGGING
;
4101 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4105 /* BFD_ASSERT(dst->symbol.flags != 0);*/
4109 dst
->symbol
.udata
.i
= 0;
4110 dst
->lineno
= (alent
*) NULL
;
4111 this_index
+= (src
->u
.syment
.n_numaux
) + 1;
4113 number_of_symbols
++;
4114 } /* walk the native symtab */
4115 } /* bfdize the native symtab */
4117 obj_symbols (abfd
) = cached_area
;
4118 obj_raw_syments (abfd
) = native_symbols
;
4120 bfd_get_symcount (abfd
) = number_of_symbols
;
4121 obj_convert (abfd
) = table_ptr
;
4122 /* Slurp the line tables for each section too */
4128 coff_slurp_line_table (abfd
, p
);
4133 } /* coff_slurp_symbol_table() */
4135 /* Classify a COFF symbol. A couple of targets have globally visible
4136 symbols which are not class C_EXT, and this handles those. It also
4137 recognizes some special PE cases. */
4139 static enum coff_symbol_classification
4140 coff_classify_symbol (abfd
, syment
)
4142 struct internal_syment
*syment
;
4144 /* FIXME: This partially duplicates the switch in
4145 coff_slurp_symbol_table. */
4146 switch (syment
->n_sclass
)
4155 case C_THUMBEXTFUNC
:
4163 if (syment
->n_scnum
== 0)
4165 if (syment
->n_value
== 0)
4166 return COFF_SYMBOL_UNDEFINED
;
4168 return COFF_SYMBOL_COMMON
;
4170 return COFF_SYMBOL_GLOBAL
;
4177 if (syment
->n_sclass
== C_STAT
)
4179 if (syment
->n_scnum
== 0)
4181 /* The Microsoft compiler sometimes generates these if a
4182 small static function is inlined every time it is used.
4183 The function is discarded, but the symbol table entry
4185 return COFF_SYMBOL_LOCAL
;
4189 /* This is correct for Microsoft generated objects, but it
4190 breaks gas generated objects. */
4192 if (syment
->n_value
== 0)
4195 char buf
[SYMNMLEN
+ 1];
4197 sec
= coff_section_from_bfd_index (abfd
, syment
->n_scnum
);
4199 && (strcmp (bfd_get_section_name (abfd
, sec
),
4200 _bfd_coff_internal_syment_name (abfd
, syment
, buf
))
4202 return COFF_SYMBOL_PE_SECTION
;
4206 return COFF_SYMBOL_LOCAL
;
4209 if (syment
->n_sclass
== C_SECTION
)
4211 /* In some cases in a DLL generated by the Microsoft linker, the
4212 n_value field will contain garbage. FIXME: This should
4213 probably be handled by the swapping function instead. */
4214 syment
->n_value
= 0;
4215 if (syment
->n_scnum
== 0)
4216 return COFF_SYMBOL_UNDEFINED
;
4217 return COFF_SYMBOL_PE_SECTION
;
4219 #endif /* COFF_WITH_PE */
4221 /* If it is not a global symbol, we presume it is a local symbol. */
4223 if (syment
->n_scnum
== 0)
4225 char buf
[SYMNMLEN
+ 1];
4227 (*_bfd_error_handler
)
4228 (_("warning: %s: local symbol `%s' has no section"),
4229 bfd_get_filename (abfd
),
4230 _bfd_coff_internal_syment_name (abfd
, syment
, buf
));
4233 return COFF_SYMBOL_LOCAL
;
4240 Coff relocations are easily transformed into the internal BFD form
4243 Reading a coff relocation table is done in the following stages:
4245 o Read the entire coff relocation table into memory.
4247 o Process each relocation in turn; first swap it from the
4248 external to the internal form.
4250 o Turn the symbol referenced in the relocation's symbol index
4251 into a pointer into the canonical symbol table.
4252 This table is the same as the one returned by a call to
4253 @code{bfd_canonicalize_symtab}. The back end will call that
4254 routine and save the result if a canonicalization hasn't been done.
4256 o The reloc index is turned into a pointer to a howto
4257 structure, in a back end specific way. For instance, the 386
4258 and 960 use the @code{r_type} to directly produce an index
4259 into a howto table vector; the 88k subtracts a number from the
4260 @code{r_type} field and creates an addend field.
4266 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
4268 coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \
4269 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
4270 coffsym = (obj_symbols (abfd) \
4271 + (cache_ptr->sym_ptr_ptr - symbols)); \
4273 coffsym = coff_symbol_from (abfd, ptr); \
4274 if (coffsym != (coff_symbol_type *) NULL \
4275 && coffsym->native->u.syment.n_scnum == 0) \
4276 cache_ptr->addend = 0; \
4277 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
4278 && ptr->section != (asection *) NULL) \
4279 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
4281 cache_ptr->addend = 0; \
4286 coff_slurp_reloc_table (abfd
, asect
, symbols
)
4291 RELOC
*native_relocs
;
4292 arelent
*reloc_cache
;
4297 if (asect
->relocation
)
4299 if (asect
->reloc_count
== 0)
4301 if (asect
->flags
& SEC_CONSTRUCTOR
)
4303 if (!coff_slurp_symbol_table (abfd
))
4306 (RELOC
*) buy_and_read (abfd
,
4310 asect
->reloc_count
));
4311 reloc_cache
= (arelent
*)
4312 bfd_alloc (abfd
, (size_t) (asect
->reloc_count
* sizeof (arelent
)));
4314 if (reloc_cache
== NULL
)
4318 for (idx
= 0; idx
< asect
->reloc_count
; idx
++)
4320 struct internal_reloc dst
;
4321 struct external_reloc
*src
;
4322 #ifndef RELOC_PROCESSING
4326 cache_ptr
= reloc_cache
+ idx
;
4327 src
= native_relocs
+ idx
;
4329 coff_swap_reloc_in (abfd
, src
, &dst
);
4331 #ifdef RELOC_PROCESSING
4332 RELOC_PROCESSING (cache_ptr
, &dst
, symbols
, abfd
, asect
);
4334 cache_ptr
->address
= dst
.r_vaddr
;
4336 if (dst
.r_symndx
!= -1)
4338 if (dst
.r_symndx
< 0 || dst
.r_symndx
>= obj_conv_table_size (abfd
))
4340 (*_bfd_error_handler
)
4341 (_("%s: warning: illegal symbol index %ld in relocs"),
4342 bfd_get_filename (abfd
), dst
.r_symndx
);
4343 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
4348 cache_ptr
->sym_ptr_ptr
= (symbols
4349 + obj_convert (abfd
)[dst
.r_symndx
]);
4350 ptr
= *(cache_ptr
->sym_ptr_ptr
);
4355 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
4359 /* The symbols definitions that we have read in have been
4360 relocated as if their sections started at 0. But the offsets
4361 refering to the symbols in the raw data have not been
4362 modified, so we have to have a negative addend to compensate.
4364 Note that symbols which used to be common must be left alone */
4366 /* Calculate any reloc addend by looking at the symbol */
4367 CALC_ADDEND (abfd
, ptr
, dst
, cache_ptr
);
4369 cache_ptr
->address
-= asect
->vma
;
4370 /* !! cache_ptr->section = (asection *) NULL;*/
4372 /* Fill in the cache_ptr->howto field from dst.r_type */
4373 RTYPE2HOWTO (cache_ptr
, &dst
);
4374 #endif /* RELOC_PROCESSING */
4376 if (cache_ptr
->howto
== NULL
)
4378 (*_bfd_error_handler
)
4379 (_("%s: illegal relocation type %d at address 0x%lx"),
4380 bfd_get_filename (abfd
), dst
.r_type
, (long) dst
.r_vaddr
);
4381 bfd_set_error (bfd_error_bad_value
);
4386 asect
->relocation
= reloc_cache
;
4390 #ifndef coff_rtype_to_howto
4393 /* Get the howto structure for a reloc. This is only used if the file
4394 including this one defines coff_relocate_section to be
4395 _bfd_coff_generic_relocate_section, so it is OK if it does not
4396 always work. It is the responsibility of the including file to
4397 make sure it is reasonable if it is needed. */
4399 static reloc_howto_type
*coff_rtype_to_howto
4400 PARAMS ((bfd
*, asection
*, struct internal_reloc
*,
4401 struct coff_link_hash_entry
*, struct internal_syment
*,
4405 static reloc_howto_type
*
4406 coff_rtype_to_howto (abfd
, sec
, rel
, h
, sym
, addendp
)
4407 bfd
*abfd ATTRIBUTE_UNUSED
;
4408 asection
*sec ATTRIBUTE_UNUSED
;
4409 struct internal_reloc
*rel
;
4410 struct coff_link_hash_entry
*h ATTRIBUTE_UNUSED
;
4411 struct internal_syment
*sym ATTRIBUTE_UNUSED
;
4412 bfd_vma
*addendp ATTRIBUTE_UNUSED
;
4416 RTYPE2HOWTO (&genrel
, rel
);
4417 return genrel
.howto
;
4420 #else /* ! defined (RTYPE2HOWTO) */
4422 #define coff_rtype_to_howto NULL
4424 #endif /* ! defined (RTYPE2HOWTO) */
4425 #endif /* ! defined (coff_rtype_to_howto) */
4427 /* This is stupid. This function should be a boolean predicate. */
4429 coff_canonicalize_reloc (abfd
, section
, relptr
, symbols
)
4435 arelent
*tblptr
= section
->relocation
;
4436 unsigned int count
= 0;
4439 if (section
->flags
& SEC_CONSTRUCTOR
)
4441 /* this section has relocs made up by us, they are not in the
4442 file, so take them out of their chain and place them into
4443 the data area provided */
4444 arelent_chain
*chain
= section
->constructor_chain
;
4445 for (count
= 0; count
< section
->reloc_count
; count
++)
4447 *relptr
++ = &chain
->relent
;
4448 chain
= chain
->next
;
4454 if (! coff_slurp_reloc_table (abfd
, section
, symbols
))
4457 tblptr
= section
->relocation
;
4459 for (; count
++ < section
->reloc_count
;)
4460 *relptr
++ = tblptr
++;
4465 return section
->reloc_count
;
4470 coff_sym_filepos (abfd
)
4473 return obj_sym_filepos (abfd
);
4477 #ifndef coff_reloc16_estimate
4478 #define coff_reloc16_estimate dummy_reloc16_estimate
4480 static int dummy_reloc16_estimate
4481 PARAMS ((bfd
*, asection
*, arelent
*, unsigned int,
4482 struct bfd_link_info
*));
4485 dummy_reloc16_estimate (abfd
, input_section
, reloc
, shrink
, link_info
)
4486 bfd
*abfd ATTRIBUTE_UNUSED
;
4487 asection
*input_section ATTRIBUTE_UNUSED
;
4488 arelent
*reloc ATTRIBUTE_UNUSED
;
4489 unsigned int shrink ATTRIBUTE_UNUSED
;
4490 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
;
4498 #ifndef coff_reloc16_extra_cases
4500 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
4502 /* This works even if abort is not declared in any header file. */
4504 static void dummy_reloc16_extra_cases
4505 PARAMS ((bfd
*, struct bfd_link_info
*, struct bfd_link_order
*, arelent
*,
4506 bfd_byte
*, unsigned int *, unsigned int *));
4509 dummy_reloc16_extra_cases (abfd
, link_info
, link_order
, reloc
, data
, src_ptr
,
4511 bfd
*abfd ATTRIBUTE_UNUSED
;
4512 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
;
4513 struct bfd_link_order
*link_order ATTRIBUTE_UNUSED
;
4514 arelent
*reloc ATTRIBUTE_UNUSED
;
4515 bfd_byte
*data ATTRIBUTE_UNUSED
;
4516 unsigned int *src_ptr ATTRIBUTE_UNUSED
;
4517 unsigned int *dst_ptr ATTRIBUTE_UNUSED
;
4523 /* If coff_relocate_section is defined, we can use the optimized COFF
4524 backend linker. Otherwise we must continue to use the old linker. */
4525 #ifdef coff_relocate_section
4526 #ifndef coff_bfd_link_hash_table_create
4527 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
4529 #ifndef coff_bfd_link_add_symbols
4530 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
4532 #ifndef coff_bfd_final_link
4533 #define coff_bfd_final_link _bfd_coff_final_link
4535 #else /* ! defined (coff_relocate_section) */
4536 #define coff_relocate_section NULL
4537 #ifndef coff_bfd_link_hash_table_create
4538 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
4540 #ifndef coff_bfd_link_add_symbols
4541 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
4543 #define coff_bfd_final_link _bfd_generic_final_link
4544 #endif /* ! defined (coff_relocate_section) */
4546 #define coff_bfd_link_split_section _bfd_generic_link_split_section
4548 #ifndef coff_start_final_link
4549 #define coff_start_final_link NULL
4552 #ifndef coff_adjust_symndx
4553 #define coff_adjust_symndx NULL
4556 #ifndef coff_link_add_one_symbol
4557 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
4560 #ifndef coff_link_output_has_begun
4562 static boolean coff_link_output_has_begun
4563 PARAMS ((bfd
*, struct coff_final_link_info
*));
4566 coff_link_output_has_begun (abfd
, info
)
4568 struct coff_final_link_info
* info ATTRIBUTE_UNUSED
;
4570 return abfd
->output_has_begun
;
4574 #ifndef coff_final_link_postscript
4576 static boolean coff_final_link_postscript
4577 PARAMS ((bfd
*, struct coff_final_link_info
*));
4580 coff_final_link_postscript (abfd
, pfinfo
)
4581 bfd
* abfd ATTRIBUTE_UNUSED
;
4582 struct coff_final_link_info
* pfinfo ATTRIBUTE_UNUSED
;
4588 #ifndef coff_SWAP_aux_in
4589 #define coff_SWAP_aux_in coff_swap_aux_in
4591 #ifndef coff_SWAP_sym_in
4592 #define coff_SWAP_sym_in coff_swap_sym_in
4594 #ifndef coff_SWAP_lineno_in
4595 #define coff_SWAP_lineno_in coff_swap_lineno_in
4597 #ifndef coff_SWAP_aux_out
4598 #define coff_SWAP_aux_out coff_swap_aux_out
4600 #ifndef coff_SWAP_sym_out
4601 #define coff_SWAP_sym_out coff_swap_sym_out
4603 #ifndef coff_SWAP_lineno_out
4604 #define coff_SWAP_lineno_out coff_swap_lineno_out
4606 #ifndef coff_SWAP_reloc_out
4607 #define coff_SWAP_reloc_out coff_swap_reloc_out
4609 #ifndef coff_SWAP_filehdr_out
4610 #define coff_SWAP_filehdr_out coff_swap_filehdr_out
4612 #ifndef coff_SWAP_aouthdr_out
4613 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
4615 #ifndef coff_SWAP_scnhdr_out
4616 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
4618 #ifndef coff_SWAP_reloc_in
4619 #define coff_SWAP_reloc_in coff_swap_reloc_in
4621 #ifndef coff_SWAP_filehdr_in
4622 #define coff_SWAP_filehdr_in coff_swap_filehdr_in
4624 #ifndef coff_SWAP_aouthdr_in
4625 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
4627 #ifndef coff_SWAP_scnhdr_in
4628 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
4633 static CONST bfd_coff_backend_data bfd_coff_std_swap_table
=
4635 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
4636 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
4637 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
4638 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
4639 coff_SWAP_scnhdr_out
,
4640 FILHSZ
, AOUTSZ
, SCNHSZ
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
,
4641 #ifdef COFF_LONG_FILENAMES
4646 #ifdef COFF_LONG_SECTION_NAMES
4651 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
4652 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
4653 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
4654 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
4655 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
4656 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
4657 coff_classify_symbol
, coff_compute_section_file_positions
,
4658 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
4659 coff_adjust_symndx
, coff_link_add_one_symbol
,
4660 coff_link_output_has_begun
, coff_final_link_postscript
4663 #ifndef coff_close_and_cleanup
4664 #define coff_close_and_cleanup _bfd_generic_close_and_cleanup
4667 #ifndef coff_bfd_free_cached_info
4668 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
4671 #ifndef coff_get_section_contents
4672 #define coff_get_section_contents _bfd_generic_get_section_contents
4675 #ifndef coff_bfd_copy_private_symbol_data
4676 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
4679 #ifndef coff_bfd_copy_private_section_data
4680 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
4683 #ifndef coff_bfd_copy_private_bfd_data
4684 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
4687 #ifndef coff_bfd_merge_private_bfd_data
4688 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
4691 #ifndef coff_bfd_set_private_flags
4692 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
4695 #ifndef coff_bfd_print_private_bfd_data
4696 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
4699 #ifndef coff_bfd_is_local_label_name
4700 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
4703 #ifndef coff_read_minisymbols
4704 #define coff_read_minisymbols _bfd_generic_read_minisymbols
4707 #ifndef coff_minisymbol_to_symbol
4708 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
4711 /* The reloc lookup routine must be supplied by each individual COFF
4713 #ifndef coff_bfd_reloc_type_lookup
4714 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
4717 #ifndef coff_bfd_get_relocated_section_contents
4718 #define coff_bfd_get_relocated_section_contents \
4719 bfd_generic_get_relocated_section_contents
4722 #ifndef coff_bfd_relax_section
4723 #define coff_bfd_relax_section bfd_generic_relax_section
4726 #ifndef coff_bfd_gc_sections
4727 #define coff_bfd_gc_sections bfd_generic_gc_sections
4730 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE) \
4731 const bfd_target VAR = \
4734 bfd_target_coff_flavour, \
4735 BFD_ENDIAN_BIG, /* data byte order is big */ \
4736 BFD_ENDIAN_BIG, /* header byte order is big */ \
4737 /* object flags */ \
4738 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
4739 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
4740 /* section flags */ \
4741 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS), \
4742 UNDER, /* leading symbol underscore */ \
4743 '/', /* ar_pad_char */ \
4744 15, /* ar_max_namelen */ \
4746 /* Data conversion functions. */ \
4747 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
4748 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
4749 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
4751 /* Header conversion functions. */ \
4752 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
4753 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
4754 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
4756 /* bfd_check_format */ \
4757 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, _bfd_dummy_target }, \
4758 /* bfd_set_format */ \
4759 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
4760 /* bfd_write_contents */ \
4761 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, bfd_false }, \
4763 BFD_JUMP_TABLE_GENERIC (coff), \
4764 BFD_JUMP_TABLE_COPY (coff), \
4765 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
4766 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
4767 BFD_JUMP_TABLE_SYMBOLS (coff), \
4768 BFD_JUMP_TABLE_RELOCS (coff), \
4769 BFD_JUMP_TABLE_WRITE (coff), \
4770 BFD_JUMP_TABLE_LINK (coff), \
4771 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
4778 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE) \
4779 const bfd_target VAR = \
4782 bfd_target_coff_flavour, \
4783 BFD_ENDIAN_LITTLE, /* data byte order is little */ \
4784 BFD_ENDIAN_LITTLE, /* header byte order is little */ \
4785 /* object flags */ \
4786 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
4787 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
4788 /* section flags */ \
4789 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS), \
4790 UNDER, /* leading symbol underscore */ \
4791 '/', /* ar_pad_char */ \
4792 15, /* ar_max_namelen */ \
4794 /* Data conversion functions. */ \
4795 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
4796 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
4797 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
4798 /* Header conversion functions. */ \
4799 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
4800 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
4801 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
4802 /* bfd_check_format */ \
4803 { _bfd_dummy_target, coff_object_p, bfd_generic_archive_p, _bfd_dummy_target }, \
4804 /* bfd_set_format */ \
4805 { bfd_false, coff_mkobject, _bfd_generic_mkarchive, bfd_false }, \
4806 /* bfd_write_contents */ \
4807 { bfd_false, coff_write_object_contents, _bfd_write_archive_contents, bfd_false }, \
4809 BFD_JUMP_TABLE_GENERIC (coff), \
4810 BFD_JUMP_TABLE_COPY (coff), \
4811 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
4812 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
4813 BFD_JUMP_TABLE_SYMBOLS (coff), \
4814 BFD_JUMP_TABLE_RELOCS (coff), \
4815 BFD_JUMP_TABLE_WRITE (coff), \
4816 BFD_JUMP_TABLE_LINK (coff), \
4817 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \