1 /* Support for the generic parts of most COFF variants, for BFD.
2 Copyright 1990, 91, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
3 Written by Cygnus Support.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
22 Most of this hacked by Steve Chamberlain,
30 BFD supports a number of different flavours of coff format.
31 The major differences between formats are the sizes and
32 alignments of fields in structures on disk, and the occasional
35 Coff in all its varieties is implemented with a few common
36 files and a number of implementation specific files. For
37 example, The 88k bcs coff format is implemented in the file
38 @file{coff-m88k.c}. This file @code{#include}s
39 @file{coff/m88k.h} which defines the external structure of the
40 coff format for the 88k, and @file{coff/internal.h} which
41 defines the internal structure. @file{coff-m88k.c} also
42 defines the relocations used by the 88k format
45 The Intel i960 processor version of coff is implemented in
46 @file{coff-i960.c}. This file has the same structure as
47 @file{coff-m88k.c}, except that it includes @file{coff/i960.h}
48 rather than @file{coff-m88k.h}.
51 Porting to a new version of coff
53 The recommended method is to select from the existing
54 implementations the version of coff which is most like the one
55 you want to use. For example, we'll say that i386 coff is
56 the one you select, and that your coff flavour is called foo.
57 Copy @file{i386coff.c} to @file{foocoff.c}, copy
58 @file{../include/coff/i386.h} to @file{../include/coff/foo.h},
59 and add the lines to @file{targets.c} and @file{Makefile.in}
60 so that your new back end is used. Alter the shapes of the
61 structures in @file{../include/coff/foo.h} so that they match
62 what you need. You will probably also have to add
63 @code{#ifdef}s to the code in @file{coff/internal.h} and
64 @file{coffcode.h} if your version of coff is too wild.
66 You can verify that your new BFD backend works quite simply by
67 building @file{objdump} from the @file{binutils} directory,
68 and making sure that its version of what's going on and your
69 host system's idea (assuming it has the pretty standard coff
70 dump utility, usually called @code{att-dump} or just
71 @code{dump}) are the same. Then clean up your code, and send
72 what you've done to Cygnus. Then your stuff will be in the
73 next release, and you won't have to keep integrating it.
76 How the coff backend works
81 The Coff backend is split into generic routines that are
82 applicable to any Coff target and routines that are specific
83 to a particular target. The target-specific routines are
84 further split into ones which are basically the same for all
85 Coff targets except that they use the external symbol format
86 or use different values for certain constants.
88 The generic routines are in @file{coffgen.c}. These routines
89 work for any Coff target. They use some hooks into the target
90 specific code; the hooks are in a @code{bfd_coff_backend_data}
91 structure, one of which exists for each target.
93 The essentially similar target-specific routines are in
94 @file{coffcode.h}. This header file includes executable C code.
95 The various Coff targets first include the appropriate Coff
96 header file, make any special defines that are needed, and
97 then include @file{coffcode.h}.
99 Some of the Coff targets then also have additional routines in
100 the target source file itself.
102 For example, @file{coff-i960.c} includes
103 @file{coff/internal.h} and @file{coff/i960.h}. It then
104 defines a few constants, such as @code{I960}, and includes
105 @file{coffcode.h}. Since the i960 has complex relocation
106 types, @file{coff-i960.c} also includes some code to
107 manipulate the i960 relocs. This code is not in
108 @file{coffcode.h} because it would not be used by any other
114 Each flavour of coff supported in BFD has its own header file
115 describing the external layout of the structures. There is also
116 an internal description of the coff layout, in
117 @file{coff/internal.h}. A major function of the
118 coff backend is swapping the bytes and twiddling the bits to
119 translate the external form of the structures into the normal
120 internal form. This is all performed in the
121 @code{bfd_swap}_@i{thing}_@i{direction} routines. Some
122 elements are different sizes between different versions of
123 coff; it is the duty of the coff version specific include file
124 to override the definitions of various packing routines in
125 @file{coffcode.h}. E.g., the size of line number entry in coff is
126 sometimes 16 bits, and sometimes 32 bits. @code{#define}ing
127 @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the
128 correct one. No doubt, some day someone will find a version of
129 coff which has a varying field size not catered to at the
130 moment. To port BFD, that person will have to add more @code{#defines}.
131 Three of the bit twiddling routines are exported to
132 @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in}
133 and @code{coff_swap_linno_in}. @code{GDB} reads the symbol
134 table on its own, but uses BFD to fix things up. More of the
135 bit twiddlers are exported for @code{gas};
136 @code{coff_swap_aux_out}, @code{coff_swap_sym_out},
137 @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out},
138 @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out},
139 @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track
140 of all the symbol table and reloc drudgery itself, thereby
141 saving the internal BFD overhead, but uses BFD to swap things
142 on the way out, making cross ports much safer. Doing so also
143 allows BFD (and thus the linker) to use the same header files
144 as @code{gas}, which makes one avenue to disaster disappear.
149 The simple canonical form for symbols used by BFD is not rich
150 enough to keep all the information available in a coff symbol
151 table. The back end gets around this problem by keeping the original
152 symbol table around, "behind the scenes".
154 When a symbol table is requested (through a call to
155 @code{bfd_canonicalize_symtab}), a request gets through to
156 @code{coff_get_normalized_symtab}. This reads the symbol table from
157 the coff file and swaps all the structures inside into the
158 internal form. It also fixes up all the pointers in the table
159 (represented in the file by offsets from the first symbol in
160 the table) into physical pointers to elements in the new
161 internal table. This involves some work since the meanings of
162 fields change depending upon context: a field that is a
163 pointer to another structure in the symbol table at one moment
164 may be the size in bytes of a structure at the next. Another
165 pass is made over the table. All symbols which mark file names
166 (<<C_FILE>> symbols) are modified so that the internal
167 string points to the value in the auxent (the real filename)
168 rather than the normal text associated with the symbol
171 At this time the symbol names are moved around. Coff stores
172 all symbols less than nine characters long physically
173 within the symbol table; longer strings are kept at the end of
174 the file in the string table. This pass moves all strings
175 into memory and replaces them with pointers to the strings.
178 The symbol table is massaged once again, this time to create
179 the canonical table used by the BFD application. Each symbol
180 is inspected in turn, and a decision made (using the
181 @code{sclass} field) about the various flags to set in the
182 @code{asymbol}. @xref{Symbols}. The generated canonical table
183 shares strings with the hidden internal symbol table.
185 Any linenumbers are read from the coff file too, and attached
186 to the symbols which own the functions the linenumbers belong to.
191 Writing a symbol to a coff file which didn't come from a coff
192 file will lose any debugging information. The @code{asymbol}
193 structure remembers the BFD from which the symbol was taken, and on
194 output the back end makes sure that the same destination target as
195 source target is present.
197 When the symbols have come from a coff file then all the
198 debugging information is preserved.
200 Symbol tables are provided for writing to the back end in a
201 vector of pointers to pointers. This allows applications like
202 the linker to accumulate and output large symbol tables
203 without having to do too much byte copying.
205 This function runs through the provided symbol table and
206 patches each symbol marked as a file place holder
207 (@code{C_FILE}) to point to the next file place holder in the
208 list. It also marks each @code{offset} field in the list with
209 the offset from the first symbol of the current symbol.
211 Another function of this procedure is to turn the canonical
212 value form of BFD into the form used by coff. Internally, BFD
213 expects symbol values to be offsets from a section base; so a
214 symbol physically at 0x120, but in a section starting at
215 0x100, would have the value 0x20. Coff expects symbols to
216 contain their final value, so symbols have their values
217 changed at this point to reflect their sum with their owning
218 section. This transformation uses the
219 <<output_section>> field of the @code{asymbol}'s
220 @code{asection} @xref{Sections}.
222 o <<coff_mangle_symbols>>
224 This routine runs though the provided symbol table and uses
225 the offsets generated by the previous pass and the pointers
226 generated when the symbol table was read in to create the
227 structured hierachy required by coff. It changes each pointer
228 to a symbol into the index into the symbol table of the asymbol.
230 o <<coff_write_symbols>>
232 This routine runs through the symbol table and patches up the
233 symbols from their internal form into the coff way, calls the
234 bit twiddlers, and writes out the table to the file.
243 The hidden information for an <<asymbol>> is described in a
244 <<combined_entry_type>>:
248 .typedef struct coff_ptr_struct
251 . {* Remembers the offset from the first symbol in the file for
252 . this symbol. Generated by coff_renumber_symbols. *}
253 .unsigned int offset;
255 . {* Should the value of this symbol be renumbered. Used for
256 . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *}
257 .unsigned int fix_value : 1;
259 . {* Should the tag field of this symbol be renumbered.
260 . Created by coff_pointerize_aux. *}
261 .unsigned int fix_tag : 1;
263 . {* Should the endidx field of this symbol be renumbered.
264 . Created by coff_pointerize_aux. *}
265 .unsigned int fix_end : 1;
267 . {* Should the x_csect.x_scnlen field be renumbered.
268 . Created by coff_pointerize_aux. *}
269 .unsigned int fix_scnlen : 1;
271 . {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the
272 . index into the line number entries. Set by
273 . coff_slurp_symbol_table. *}
274 .unsigned int fix_line : 1;
276 . {* The container for the symbol structure as read and translated
280 . union internal_auxent auxent;
281 . struct internal_syment syment;
283 .} combined_entry_type;
286 .{* Each canonical asymbol really looks like this: *}
288 .typedef struct coff_symbol_struct
290 . {* The actual symbol which the rest of BFD works with *}
293 . {* A pointer to the hidden information for this symbol *}
294 .combined_entry_type *native;
296 . {* A pointer to the linenumber information for this symbol *}
297 .struct lineno_cache_entry *lineno;
299 . {* Have the line numbers been relocated yet ? *}
300 .boolean done_lineno;
309 #include "coffswap.h"
312 #define STRING_SIZE_SIZE (4)
314 static long sec_to_styp_flags
PARAMS ((const char *, flagword
));
315 static flagword styp_to_sec_flags
PARAMS ((bfd
*, PTR
, const char *));
316 static boolean coff_bad_format_hook
PARAMS ((bfd
*, PTR
));
317 static boolean coff_new_section_hook
PARAMS ((bfd
*, asection
*));
318 static boolean coff_set_arch_mach_hook
PARAMS ((bfd
*, PTR
));
319 static boolean coff_write_relocs
PARAMS ((bfd
*, int));
320 static boolean coff_set_flags
321 PARAMS ((bfd
*, unsigned int *, unsigned short *));
322 static boolean coff_set_arch_mach
323 PARAMS ((bfd
*, enum bfd_architecture
, unsigned long));
324 static boolean coff_compute_section_file_positions
PARAMS ((bfd
*));
325 static boolean coff_write_object_contents
PARAMS ((bfd
*));
326 static boolean coff_set_section_contents
327 PARAMS ((bfd
*, asection
*, PTR
, file_ptr
, bfd_size_type
));
328 static PTR buy_and_read
PARAMS ((bfd
*, file_ptr
, int, size_t));
329 static boolean coff_slurp_line_table
PARAMS ((bfd
*, asection
*));
330 static boolean coff_slurp_symbol_table
PARAMS ((bfd
*));
331 static boolean coff_slurp_reloc_table
PARAMS ((bfd
*, asection
*, asymbol
**));
332 static long coff_canonicalize_reloc
333 PARAMS ((bfd
*, asection
*, arelent
**, asymbol
**));
334 #ifndef coff_mkobject_hook
335 static PTR coff_mkobject_hook
PARAMS ((bfd
*, PTR
, PTR
));
338 /* void warning(); */
341 * Return a word with STYP_* (scnhdr.s_flags) flags set to represent the
342 * incoming SEC_* flags. The inverse of this function is styp_to_sec_flags().
343 * NOTE: If you add to/change this routine, you should mirror the changes
344 * in styp_to_sec_flags().
347 sec_to_styp_flags (sec_name
, sec_flags
)
348 CONST
char *sec_name
;
353 if (!strcmp (sec_name
, _TEXT
))
355 styp_flags
= STYP_TEXT
;
357 else if (!strcmp (sec_name
, _DATA
))
359 styp_flags
= STYP_DATA
;
361 else if (!strcmp (sec_name
, _BSS
))
363 styp_flags
= STYP_BSS
;
366 else if (!strcmp (sec_name
, _COMMENT
))
368 styp_flags
= STYP_INFO
;
369 #endif /* _COMMENT */
372 else if (!strcmp (sec_name
, _LIB
))
374 styp_flags
= STYP_LIB
;
378 else if (!strcmp (sec_name
, _LIT
))
380 styp_flags
= STYP_LIT
;
383 else if (!strcmp (sec_name
, ".debug"))
386 styp_flags
= STYP_DEBUG
;
388 styp_flags
= STYP_INFO
;
391 else if (!strncmp (sec_name
, ".stab", 5))
393 styp_flags
= STYP_INFO
;
396 else if (!strcmp (sec_name
, ".edata"))
398 styp_flags
= STYP_DATA
;
402 else if (!strcmp (sec_name
, _PAD
))
404 styp_flags
= STYP_PAD
;
406 else if (!strcmp (sec_name
, _LOADER
))
408 styp_flags
= STYP_LOADER
;
411 /* Try and figure out what it should be */
412 else if (sec_flags
& SEC_CODE
)
414 styp_flags
= STYP_TEXT
;
416 else if (sec_flags
& SEC_DATA
)
418 styp_flags
= STYP_DATA
;
420 else if (sec_flags
& SEC_READONLY
)
422 #ifdef STYP_LIT /* 29k readonly text/data section */
423 styp_flags
= STYP_LIT
;
425 styp_flags
= STYP_TEXT
;
426 #endif /* STYP_LIT */
428 else if (sec_flags
& SEC_LOAD
)
430 styp_flags
= STYP_TEXT
;
432 else if (sec_flags
& SEC_ALLOC
)
434 styp_flags
= STYP_BSS
;
438 if ((sec_flags
& (SEC_NEVER_LOAD
| SEC_COFF_SHARED_LIBRARY
)) != 0)
439 styp_flags
|= STYP_NOLOAD
;
443 if (sec_flags
& SEC_LINK_ONCE
)
444 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
450 * Return a word with SEC_* flags set to represent the incoming
451 * STYP_* flags (from scnhdr.s_flags). The inverse of this
452 * function is sec_to_styp_flags().
453 * NOTE: If you add to/change this routine, you should mirror the changes
454 * in sec_to_styp_flags().
457 styp_to_sec_flags (abfd
, hdr
, name
)
462 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
463 long styp_flags
= internal_s
->s_flags
;
464 flagword sec_flags
= 0;
467 if (styp_flags
& STYP_NOLOAD
)
469 sec_flags
|= SEC_NEVER_LOAD
;
471 #endif /* STYP_NOLOAD */
473 /* For 386 COFF, at least, an unloadable text or data section is
474 actually a shared library section. */
475 if (styp_flags
& STYP_TEXT
)
477 if (sec_flags
& SEC_NEVER_LOAD
)
478 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
480 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
482 else if (styp_flags
& STYP_DATA
)
484 if (sec_flags
& SEC_NEVER_LOAD
)
485 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
487 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
489 else if (styp_flags
& STYP_BSS
)
491 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
492 if (sec_flags
& SEC_NEVER_LOAD
)
493 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
496 sec_flags
|= SEC_ALLOC
;
498 else if (styp_flags
& STYP_INFO
)
500 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
501 defined. coff_compute_section_file_positions uses
502 COFF_PAGE_SIZE to ensure that the low order bits of the
503 section VMA and the file offset match. If we don't know
504 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
505 and demand page loading of the file will fail. */
506 #ifdef COFF_PAGE_SIZE
507 sec_flags
|= SEC_DEBUGGING
;
510 else if (styp_flags
& STYP_PAD
)
514 else if (strcmp (name
, _TEXT
) == 0)
516 if (sec_flags
& SEC_NEVER_LOAD
)
517 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
519 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
521 else if (strcmp (name
, _DATA
) == 0)
523 if (sec_flags
& SEC_NEVER_LOAD
)
524 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
526 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
528 else if (strcmp (name
, _BSS
) == 0)
530 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
531 if (sec_flags
& SEC_NEVER_LOAD
)
532 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
535 sec_flags
|= SEC_ALLOC
;
537 else if (strcmp (name
, ".debug") == 0
539 || strcmp (name
, _COMMENT
) == 0
541 || strncmp (name
, ".stab", 5) == 0)
543 #ifdef COFF_PAGE_SIZE
544 sec_flags
|= SEC_DEBUGGING
;
548 else if (strcmp (name
, _LIB
) == 0)
552 else if (strcmp (name
, _LIT
) == 0)
554 sec_flags
= SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
;
559 sec_flags
|= SEC_ALLOC
| SEC_LOAD
;
562 #ifdef STYP_LIT /* A29k readonly text/data section type */
563 if ((styp_flags
& STYP_LIT
) == STYP_LIT
)
565 sec_flags
= (SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
);
567 #endif /* STYP_LIT */
568 #ifdef STYP_OTHER_LOAD /* Other loaded sections */
569 if (styp_flags
& STYP_OTHER_LOAD
)
571 sec_flags
= (SEC_LOAD
| SEC_ALLOC
);
573 #endif /* STYP_SDATA */
576 if (styp_flags
& IMAGE_SCN_LNK_REMOVE
)
577 sec_flags
|= SEC_EXCLUDE
;
579 if (styp_flags
& IMAGE_SCN_LNK_COMDAT
)
581 sec_flags
|= SEC_LINK_ONCE
;
583 /* Unfortunately, the PE format stores essential information in
584 the symbol table, of all places. We need to extract that
585 information now, so that objdump and the linker will know how
586 to handle the section without worrying about the symbols. We
587 can't call slurp_symtab, because the linker doesn't want the
590 if (_bfd_coff_get_external_symbols (abfd
))
592 bfd_byte
*esym
, *esymend
;
594 esym
= (bfd_byte
*) obj_coff_external_syms (abfd
);
595 esymend
= esym
+ obj_raw_syment_count (abfd
) * SYMESZ
;
597 while (esym
< esymend
)
599 struct internal_syment isym
;
601 bfd_coff_swap_sym_in (abfd
, (PTR
) esym
, (PTR
) &isym
);
603 if (sizeof (internal_s
->s_name
) > SYMNMLEN
)
605 /* This case implies that the matching symbol name
606 will be in the string table. */
610 if (isym
.n_sclass
== C_STAT
611 && isym
.n_type
== T_NULL
612 && isym
.n_numaux
== 1)
614 char buf
[SYMNMLEN
+ 1];
617 symname
= _bfd_coff_internal_syment_name (abfd
, &isym
, buf
);
621 if (strcmp (name
, symname
) == 0)
623 union internal_auxent aux
;
625 /* This is the section symbol. */
627 bfd_coff_swap_aux_in (abfd
, (PTR
) (esym
+ SYMESZ
),
628 isym
.n_type
, isym
.n_sclass
,
629 0, isym
.n_numaux
, (PTR
) &aux
);
631 switch (aux
.x_scn
.x_comdat
)
633 case IMAGE_COMDAT_SELECT_NODUPLICATES
:
634 sec_flags
|= SEC_LINK_DUPLICATES_ONE_ONLY
;
638 case IMAGE_COMDAT_SELECT_ANY
:
639 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
642 case IMAGE_COMDAT_SELECT_SAME_SIZE
:
643 sec_flags
|= SEC_LINK_DUPLICATES_SAME_SIZE
;
646 case IMAGE_COMDAT_SELECT_EXACT_MATCH
:
647 sec_flags
|= SEC_LINK_DUPLICATES_SAME_CONTENTS
;
650 case IMAGE_COMDAT_SELECT_ASSOCIATIVE
:
651 /* FIXME: This is not currently implemented. */
652 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
660 esym
+= (isym
.n_numaux
+ 1) * SYMESZ
;
669 #define get_index(symbol) ((symbol)->udata.i)
673 bfd_coff_backend_data
677 Special entry points for gdb to swap in coff symbol table parts:
680 . void (*_bfd_coff_swap_aux_in) PARAMS ((
689 . void (*_bfd_coff_swap_sym_in) PARAMS ((
694 . void (*_bfd_coff_swap_lineno_in) PARAMS ((
700 Special entry points for gas to swap out coff parts:
702 . unsigned int (*_bfd_coff_swap_aux_out) PARAMS ((
711 . unsigned int (*_bfd_coff_swap_sym_out) PARAMS ((
716 . unsigned int (*_bfd_coff_swap_lineno_out) PARAMS ((
721 . unsigned int (*_bfd_coff_swap_reloc_out) PARAMS ((
726 . unsigned int (*_bfd_coff_swap_filehdr_out) PARAMS ((
731 . unsigned int (*_bfd_coff_swap_aouthdr_out) PARAMS ((
736 . unsigned int (*_bfd_coff_swap_scnhdr_out) PARAMS ((
742 Special entry points for generic COFF routines to call target
743 dependent COFF routines:
745 . unsigned int _bfd_filhsz;
746 . unsigned int _bfd_aoutsz;
747 . unsigned int _bfd_scnhsz;
748 . unsigned int _bfd_symesz;
749 . unsigned int _bfd_auxesz;
750 . unsigned int _bfd_relsz;
751 . unsigned int _bfd_linesz;
752 . boolean _bfd_coff_long_filenames;
753 . boolean _bfd_coff_long_section_names;
754 . unsigned int _bfd_coff_default_section_alignment_power;
755 . void (*_bfd_coff_swap_filehdr_in) PARAMS ((
759 . void (*_bfd_coff_swap_aouthdr_in) PARAMS ((
763 . void (*_bfd_coff_swap_scnhdr_in) PARAMS ((
767 . void (*_bfd_coff_swap_reloc_in) PARAMS ((
771 . boolean (*_bfd_coff_bad_format_hook) PARAMS ((
773 . PTR internal_filehdr));
774 . boolean (*_bfd_coff_set_arch_mach_hook) PARAMS ((
776 . PTR internal_filehdr));
777 . PTR (*_bfd_coff_mkobject_hook) PARAMS ((
779 . PTR internal_filehdr,
780 . PTR internal_aouthdr));
781 . flagword (*_bfd_styp_to_sec_flags_hook) PARAMS ((
783 . PTR internal_scnhdr,
784 . const char *name));
785 . void (*_bfd_set_alignment_hook) PARAMS ((
788 . PTR internal_scnhdr));
789 . boolean (*_bfd_coff_slurp_symbol_table) PARAMS ((
791 . boolean (*_bfd_coff_symname_in_debug) PARAMS ((
793 . struct internal_syment *sym));
794 . boolean (*_bfd_coff_pointerize_aux_hook) PARAMS ((
796 . combined_entry_type *table_base,
797 . combined_entry_type *symbol,
798 . unsigned int indaux,
799 . combined_entry_type *aux));
800 . boolean (*_bfd_coff_print_aux) PARAMS ((
803 . combined_entry_type *table_base,
804 . combined_entry_type *symbol,
805 . combined_entry_type *aux,
806 . unsigned int indaux));
807 . void (*_bfd_coff_reloc16_extra_cases) PARAMS ((
809 . struct bfd_link_info *link_info,
810 . struct bfd_link_order *link_order,
813 . unsigned int *src_ptr,
814 . unsigned int *dst_ptr));
815 . int (*_bfd_coff_reloc16_estimate) PARAMS ((
817 . asection *input_section,
819 . unsigned int shrink,
820 . struct bfd_link_info *link_info));
821 . boolean (*_bfd_coff_sym_is_global) PARAMS ((
823 . struct internal_syment *));
824 . boolean (*_bfd_coff_compute_section_file_positions) PARAMS ((
826 . boolean (*_bfd_coff_start_final_link) PARAMS ((
828 . struct bfd_link_info *info));
829 . boolean (*_bfd_coff_relocate_section) PARAMS ((
831 . struct bfd_link_info *info,
833 . asection *input_section,
834 . bfd_byte *contents,
835 . struct internal_reloc *relocs,
836 . struct internal_syment *syms,
837 . asection **sections));
838 . reloc_howto_type *(*_bfd_coff_rtype_to_howto) PARAMS ((
841 . struct internal_reloc *rel,
842 . struct coff_link_hash_entry *h,
843 . struct internal_syment *sym,
844 . bfd_vma *addendp));
845 . boolean (*_bfd_coff_adjust_symndx) PARAMS ((
847 . struct bfd_link_info *info,
850 . struct internal_reloc *reloc,
851 . boolean *adjustedp));
852 . boolean (*_bfd_coff_link_add_one_symbol) PARAMS ((
853 . struct bfd_link_info *info,
859 . const char *string,
862 . struct bfd_link_hash_entry **hashp));
864 .} bfd_coff_backend_data;
866 .#define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
868 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
869 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
871 .#define bfd_coff_swap_sym_in(a,e,i) \
872 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
874 .#define bfd_coff_swap_lineno_in(a,e,i) \
875 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
877 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
878 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
880 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
881 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
883 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
884 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
886 .#define bfd_coff_swap_sym_out(abfd, i,o) \
887 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
889 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
890 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
892 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
893 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
895 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
896 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
898 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
899 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
900 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
901 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
902 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
903 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
904 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
905 .#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames)
906 .#define bfd_coff_long_section_names(abfd) \
907 . (coff_backend_info (abfd)->_bfd_coff_long_section_names)
908 .#define bfd_coff_default_section_alignment_power(abfd) \
909 . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
910 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
911 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
913 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
914 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
916 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
917 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
919 .#define bfd_coff_swap_reloc_in(abfd, i, o) \
920 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
922 .#define bfd_coff_bad_format_hook(abfd, filehdr) \
923 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
925 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
926 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
927 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
928 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr))
930 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name)\
931 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook) (abfd, scnhdr, name))
933 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
934 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
936 .#define bfd_coff_slurp_symbol_table(abfd)\
937 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
939 .#define bfd_coff_symname_in_debug(abfd, sym)\
940 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
942 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
943 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
944 . (abfd, file, base, symbol, aux, indaux))
946 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\
947 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
948 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
950 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
951 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
952 . (abfd, section, reloc, shrink, link_info))
954 .#define bfd_coff_sym_is_global(abfd, sym)\
955 . ((coff_backend_info (abfd)->_bfd_coff_sym_is_global)\
958 .#define bfd_coff_compute_section_file_positions(abfd)\
959 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
962 .#define bfd_coff_start_final_link(obfd, info)\
963 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
965 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
966 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
967 . (obfd, info, ibfd, o, con, rel, isyms, secs))
968 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
969 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
970 . (abfd, sec, rel, h, sym, addendp))
971 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
972 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
973 . (obfd, info, ibfd, sec, rel, adjustedp))
974 .#define bfd_coff_link_add_one_symbol(info,abfd,name,flags,section,value,string,cp,coll,hashp)\
975 . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
976 . (info, abfd, name, flags, section, value, string, cp, coll, hashp))
980 /* See whether the magic number matches. */
983 coff_bad_format_hook (abfd
, filehdr
)
987 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
989 if (BADMAG (*internal_f
))
992 /* if the optional header is NULL or not the correct size then
993 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
994 and Intel 960 readwrite headers (I960WRMAGIC) is that the
995 optional header is of a different size.
997 But the mips keeps extra stuff in it's opthdr, so dont check
1001 #if defined(M88) || defined(I960)
1002 if (internal_f
->f_opthdr
!= 0 && AOUTSZ
!= internal_f
->f_opthdr
)
1010 initialize a section structure with information peculiar to this
1011 particular implementation of coff
1015 coff_new_section_hook (abfd
, section
)
1019 section
->alignment_power
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1022 if (xcoff_data (abfd
)->text_align_power
!= 0
1023 && strcmp (bfd_get_section_name (abfd
, section
), ".text") == 0)
1024 section
->alignment_power
= xcoff_data (abfd
)->text_align_power
;
1025 if (xcoff_data (abfd
)->data_align_power
!= 0
1026 && strcmp (bfd_get_section_name (abfd
, section
), ".data") == 0)
1027 section
->alignment_power
= xcoff_data (abfd
)->data_align_power
;
1030 /* Allocate aux records for section symbols, to store size and
1033 @@ The 10 is a guess at a plausible maximum number of aux entries
1034 (but shouldn't be a constant). */
1035 coffsymbol (section
->symbol
)->native
=
1036 (combined_entry_type
*) bfd_zalloc (abfd
,
1037 sizeof (combined_entry_type
) * 10);
1039 /* The .stab section must be aligned to 2**2 at most, because
1040 otherwise there may be gaps in the section which gdb will not
1041 know how to interpret. Examining the section name is a hack, but
1042 that is also how gdb locates the section.
1043 We need to handle the .ctors and .dtors sections similarly, to
1044 avoid introducing null words in the tables. */
1045 if (COFF_DEFAULT_SECTION_ALIGNMENT_POWER
> 2
1046 && (strncmp (section
->name
, ".stab", 5) == 0
1047 || strcmp (section
->name
, ".ctors") == 0
1048 || strcmp (section
->name
, ".dtors") == 0))
1049 section
->alignment_power
= 2;
1051 /* Similarly, the .stabstr section must be aligned to 2**0 at most. */
1052 if (COFF_DEFAULT_SECTION_ALIGNMENT_POWER
> 0
1053 && strncmp (section
->name
, ".stabstr", 8) == 0)
1054 section
->alignment_power
= 0;
1061 /* Set the alignment of a BFD section. */
1063 static void coff_set_alignment_hook
PARAMS ((bfd
*, asection
*, PTR
));
1066 coff_set_alignment_hook (abfd
, section
, scnhdr
)
1071 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1074 for (i
= 0; i
< 32; i
++)
1075 if ((1 << i
) >= hdr
->s_align
)
1077 section
->alignment_power
= i
;
1083 /* a couple of macros to help setting the alignment power field */
1084 #define ALIGN_SET(field,x,y) \
1085 if (((field) & IMAGE_SCN_ALIGN_64BYTES) == x )\
1087 section->alignment_power = y;\
1090 #define ELIFALIGN_SET(field,x,y) \
1091 else if (( (field) & IMAGE_SCN_ALIGN_64BYTES) == x ) \
1093 section->alignment_power = y;\
1096 static void coff_set_alignment_hook
PARAMS ((bfd
*, asection
*, PTR
));
1099 coff_set_alignment_hook (abfd
, section
, scnhdr
)
1104 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1106 ALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_64BYTES
, 6)
1107 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_32BYTES
, 5)
1108 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_16BYTES
, 4)
1109 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_8BYTES
, 3)
1110 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_4BYTES
, 2)
1111 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_2BYTES
, 1)
1112 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_1BYTES
, 0)
1114 #ifdef POWERPC_LE_PE
1115 if (strcmp (section
->name
, ".idata$2") == 0)
1117 section
->alignment_power
= 0;
1119 else if (strcmp (section
->name
, ".idata$3") == 0)
1121 section
->alignment_power
= 0;
1123 else if (strcmp (section
->name
, ".idata$4") == 0)
1125 section
->alignment_power
= 2;
1127 else if (strcmp (section
->name
, ".idata$5") == 0)
1129 section
->alignment_power
= 2;
1131 else if (strcmp (section
->name
, ".idata$6") == 0)
1133 section
->alignment_power
= 1;
1135 else if (strcmp (section
->name
, ".reloc") == 0)
1137 section
->alignment_power
= 1;
1139 else if (strncmp (section
->name
, ".stab", 5) == 0)
1141 section
->alignment_power
= 2;
1145 #ifdef COFF_IMAGE_WITH_PE
1146 /* In a PE image file, the s_paddr field holds the virtual size of a
1147 section, while the s_size field holds the raw size. */
1148 if (hdr
->s_paddr
!= 0)
1150 if (coff_section_data (abfd
, section
) == NULL
)
1152 section
->used_by_bfd
=
1153 (PTR
) bfd_zalloc (abfd
, sizeof (struct coff_section_tdata
));
1154 if (section
->used_by_bfd
== NULL
)
1156 /* FIXME: Return error. */
1160 if (pei_section_data (abfd
, section
) == NULL
)
1162 coff_section_data (abfd
, section
)->tdata
=
1163 (PTR
) bfd_zalloc (abfd
, sizeof (struct pei_section_tdata
));
1164 if (coff_section_data (abfd
, section
)->tdata
== NULL
)
1166 /* FIXME: Return error. */
1170 pei_section_data (abfd
, section
)->virt_size
= hdr
->s_paddr
;
1176 #undef ELIFALIGN_SET
1178 #else /* ! COFF_WITH_PE */
1181 /* We grossly abuse this function to handle XCOFF overflow headers.
1182 When we see one, we correct the reloc and line number counts in the
1183 real header, and remove the section we just created. */
1185 static void coff_set_alignment_hook
PARAMS ((bfd
*, asection
*, PTR
));
1188 coff_set_alignment_hook (abfd
, section
, scnhdr
)
1193 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1197 if ((hdr
->s_flags
& STYP_OVRFLO
) == 0)
1200 real_sec
= coff_section_from_bfd_index (abfd
, hdr
->s_nreloc
);
1201 if (real_sec
== NULL
)
1204 real_sec
->reloc_count
= hdr
->s_paddr
;
1205 real_sec
->lineno_count
= hdr
->s_vaddr
;
1207 for (ps
= &abfd
->sections
; *ps
!= NULL
; ps
= &(*ps
)->next
)
1212 --abfd
->section_count
;
1218 #else /* ! RS6000COFF_C */
1220 #define coff_set_alignment_hook \
1221 ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void)
1223 #endif /* ! RS6000COFF_C */
1224 #endif /* ! COFF_WITH_PE */
1227 #ifndef coff_mkobject
1229 static boolean coff_mkobject
PARAMS ((bfd
*));
1232 coff_mkobject (abfd
)
1235 coff_data_type
*coff
;
1237 abfd
->tdata
.coff_obj_data
= (struct coff_tdata
*) bfd_zalloc (abfd
, sizeof (coff_data_type
));
1238 if (abfd
->tdata
.coff_obj_data
== 0)
1240 coff
= coff_data (abfd
);
1241 coff
->symbols
= (coff_symbol_type
*) NULL
;
1242 coff
->conversion_table
= (unsigned int *) NULL
;
1243 coff
->raw_syments
= (struct coff_ptr_struct
*) NULL
;
1244 coff
->relocbase
= 0;
1245 coff
->local_toc_sym_map
= 0;
1247 /* make_abs_section(abfd);*/
1253 /* Create the COFF backend specific information. */
1254 #ifndef coff_mkobject_hook
1256 coff_mkobject_hook (abfd
, filehdr
, aouthdr
)
1261 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1262 coff_data_type
*coff
;
1264 if (coff_mkobject (abfd
) == false)
1267 coff
= coff_data (abfd
);
1269 coff
->sym_filepos
= internal_f
->f_symptr
;
1271 /* These members communicate important constants about the symbol
1272 table to GDB's symbol-reading code. These `constants'
1273 unfortunately vary among coff implementations... */
1274 coff
->local_n_btmask
= N_BTMASK
;
1275 coff
->local_n_btshft
= N_BTSHFT
;
1276 coff
->local_n_tmask
= N_TMASK
;
1277 coff
->local_n_tshift
= N_TSHIFT
;
1278 coff
->local_symesz
= SYMESZ
;
1279 coff
->local_auxesz
= AUXESZ
;
1280 coff
->local_linesz
= LINESZ
;
1282 obj_raw_syment_count (abfd
) =
1283 obj_conv_table_size (abfd
) =
1284 internal_f
->f_nsyms
;
1287 if ((internal_f
->f_flags
& F_SHROBJ
) != 0)
1288 abfd
->flags
|= DYNAMIC
;
1289 if (aouthdr
!= NULL
&& internal_f
->f_opthdr
>= AOUTSZ
)
1291 struct internal_aouthdr
*internal_a
=
1292 (struct internal_aouthdr
*) aouthdr
;
1293 struct xcoff_tdata
*xcoff
;
1295 xcoff
= xcoff_data (abfd
);
1296 xcoff
->full_aouthdr
= true;
1297 xcoff
->toc
= internal_a
->o_toc
;
1298 xcoff
->sntoc
= internal_a
->o_sntoc
;
1299 xcoff
->snentry
= internal_a
->o_snentry
;
1300 xcoff
->text_align_power
= internal_a
->o_algntext
;
1301 xcoff
->data_align_power
= internal_a
->o_algndata
;
1302 xcoff
->modtype
= internal_a
->o_modtype
;
1303 xcoff
->cputype
= internal_a
->o_cputype
;
1304 xcoff
->maxdata
= internal_a
->o_maxdata
;
1305 xcoff
->maxstack
= internal_a
->o_maxstack
;
1310 /* Set the flags field from the COFF header read in */
1311 if (! coff_arm_bfd_set_private_flags (abfd
, internal_f
->f_flags
))
1319 /* Determine the machine architecture and type. FIXME: This is target
1320 dependent because the magic numbers are defined in the target
1321 dependent header files. But there is no particular need for this.
1322 If the magic numbers were moved to a separate file, this function
1323 would be target independent and would also be much more successful
1324 at linking together COFF files for different architectures. */
1327 coff_set_arch_mach_hook (abfd
, filehdr
)
1332 enum bfd_architecture arch
;
1333 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1336 switch (internal_f
->f_magic
)
1340 arch
= bfd_arch_powerpc
;
1341 machine
= 0; /* what does this mean? (krk) */
1347 case I386AIXMAGIC
: /* Danbury PS/2 AIX C Compiler */
1348 case LYNXCOFFMAGIC
: /* shadows the m68k Lynx number below, sigh */
1349 arch
= bfd_arch_i386
;
1353 #ifdef A29K_MAGIC_BIG
1354 case A29K_MAGIC_BIG
:
1355 case A29K_MAGIC_LITTLE
:
1356 arch
= bfd_arch_a29k
;
1362 arch
= bfd_arch_arm
;
1363 switch (internal_f
->f_flags
& F_ARM_ARCHITECTURE_MASK
)
1365 case F_ARM_2
: machine
= bfd_mach_arm_2
; break;
1366 case F_ARM_2a
: machine
= bfd_mach_arm_2a
; break;
1367 case F_ARM_3
: machine
= bfd_mach_arm_3
; break;
1369 case F_ARM_3M
: machine
= bfd_mach_arm_3M
; break;
1370 case F_ARM_4
: machine
= bfd_mach_arm_4
; break;
1371 case F_ARM_4T
: machine
= bfd_mach_arm_4T
; break;
1378 #ifdef MC68KBCSMAGIC
1381 #ifdef APOLLOM68KMAGIC
1382 case APOLLOM68KMAGIC
:
1384 #ifdef LYNXCOFFMAGIC
1387 arch
= bfd_arch_m68k
;
1395 arch
= bfd_arch_m88k
;
1401 arch
= bfd_arch_z8k
;
1402 switch (internal_f
->f_flags
& F_MACHMASK
)
1405 machine
= bfd_mach_z8001
;
1408 machine
= bfd_mach_z8002
;
1417 arch
= bfd_arch_i860
;
1424 arch
= bfd_arch_i960
;
1425 switch (F_I960TYPE
& internal_f
->f_flags
)
1429 machine
= bfd_mach_i960_core
;
1432 machine
= bfd_mach_i960_kb_sb
;
1435 machine
= bfd_mach_i960_mc
;
1438 machine
= bfd_mach_i960_xa
;
1441 machine
= bfd_mach_i960_ca
;
1444 machine
= bfd_mach_i960_ka_sa
;
1447 machine
= bfd_mach_i960_jx
;
1450 machine
= bfd_mach_i960_hx
;
1464 if (xcoff_data (abfd
)->cputype
!= -1)
1465 cputype
= xcoff_data (abfd
)->cputype
& 0xff;
1468 /* We did not get a value from the a.out header. If the
1469 file has not been stripped, we may be able to get the
1470 architecture information from the first symbol, if it
1471 is a .file symbol. */
1472 if (obj_raw_syment_count (abfd
) == 0)
1476 bfd_byte buf
[SYMESZ
];
1477 struct internal_syment sym
;
1479 if (bfd_seek (abfd
, obj_sym_filepos (abfd
), SEEK_SET
) != 0
1480 || bfd_read (buf
, 1, SYMESZ
, abfd
) != SYMESZ
)
1482 coff_swap_sym_in (abfd
, (PTR
) buf
, (PTR
) &sym
);
1483 if (sym
.n_sclass
== C_FILE
)
1484 cputype
= sym
.n_type
& 0xff;
1490 /* FIXME: We don't handle all cases here. */
1496 /* PowerPC Macs use the same magic numbers as RS/6000
1497 (because that's how they were bootstrapped originally),
1498 but they are always PowerPC architecture. */
1499 arch
= bfd_arch_powerpc
;
1502 arch
= bfd_arch_rs6000
;
1504 #endif /* POWERMAC */
1508 arch
= bfd_arch_powerpc
;
1511 case 2: /* 64 bit PowerPC */
1512 arch
= bfd_arch_powerpc
;
1516 arch
= bfd_arch_powerpc
;
1520 arch
= bfd_arch_rs6000
;
1530 arch
= bfd_arch_we32k
;
1537 arch
= bfd_arch_h8300
;
1538 machine
= bfd_mach_h8300
;
1539 /* !! FIXME this probably isn't the right place for this */
1540 abfd
->flags
|= BFD_IS_RELAXABLE
;
1546 arch
= bfd_arch_h8300
;
1547 machine
= bfd_mach_h8300h
;
1548 /* !! FIXME this probably isn't the right place for this */
1549 abfd
->flags
|= BFD_IS_RELAXABLE
;
1555 arch
= bfd_arch_h8300
;
1556 machine
= bfd_mach_h8300s
;
1557 /* !! FIXME this probably isn't the right place for this */
1558 abfd
->flags
|= BFD_IS_RELAXABLE
;
1562 #ifdef SH_ARCH_MAGIC_BIG
1563 case SH_ARCH_MAGIC_BIG
:
1564 case SH_ARCH_MAGIC_LITTLE
:
1572 arch
= bfd_arch_h8500
;
1579 #ifdef LYNXCOFFMAGIC
1582 arch
= bfd_arch_sparc
;
1587 #ifdef TIC80_ARCH_MAGIC
1588 case TIC80_ARCH_MAGIC
:
1589 arch
= bfd_arch_tic80
;
1593 default: /* Unreadable input file type */
1594 arch
= bfd_arch_obscure
;
1598 bfd_default_set_arch_mach (abfd
, arch
, machine
);
1602 #ifdef SYMNAME_IN_DEBUG
1604 static boolean symname_in_debug_hook
1605 PARAMS ((bfd
*, struct internal_syment
*));
1608 symname_in_debug_hook (abfd
, sym
)
1610 struct internal_syment
*sym
;
1612 return SYMNAME_IN_DEBUG (sym
) ? true : false;
1617 #define symname_in_debug_hook \
1618 (boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false
1624 /* Handle the csect auxent of a C_EXT or C_HIDEXT symbol. */
1626 static boolean coff_pointerize_aux_hook
1627 PARAMS ((bfd
*, combined_entry_type
*, combined_entry_type
*,
1628 unsigned int, combined_entry_type
*));
1632 coff_pointerize_aux_hook (abfd
, table_base
, symbol
, indaux
, aux
)
1634 combined_entry_type
*table_base
;
1635 combined_entry_type
*symbol
;
1636 unsigned int indaux
;
1637 combined_entry_type
*aux
;
1639 int class = symbol
->u
.syment
.n_sclass
;
1641 if ((class == C_EXT
|| class == C_HIDEXT
)
1642 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
1644 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) == XTY_LD
)
1646 aux
->u
.auxent
.x_csect
.x_scnlen
.p
=
1647 table_base
+ aux
->u
.auxent
.x_csect
.x_scnlen
.l
;
1648 aux
->fix_scnlen
= 1;
1651 /* Return true to indicate that the caller should not do any
1652 further work on this auxent. */
1656 /* Return false to indicate that this auxent should be handled by
1664 /* We don't want to pointerize bal entries. */
1666 static boolean coff_pointerize_aux_hook
1667 PARAMS ((bfd
*, combined_entry_type
*, combined_entry_type
*,
1668 unsigned int, combined_entry_type
*));
1672 coff_pointerize_aux_hook (abfd
, table_base
, symbol
, indaux
, aux
)
1674 combined_entry_type
*table_base
;
1675 combined_entry_type
*symbol
;
1676 unsigned int indaux
;
1677 combined_entry_type
*aux
;
1679 /* Return true if we don't want to pointerize this aux entry, which
1680 is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */
1682 && (symbol
->u
.syment
.n_sclass
== C_LEAFPROC
1683 || symbol
->u
.syment
.n_sclass
== C_LEAFSTAT
1684 || symbol
->u
.syment
.n_sclass
== C_LEAFEXT
));
1689 #define coff_pointerize_aux_hook 0
1692 #endif /* ! RS6000COFF_C */
1694 /* Print an aux entry. This returns true if it has printed it. */
1696 static boolean coff_print_aux
1697 PARAMS ((bfd
*, FILE *, combined_entry_type
*, combined_entry_type
*,
1698 combined_entry_type
*, unsigned int));
1701 coff_print_aux (abfd
, file
, table_base
, symbol
, aux
, indaux
)
1704 combined_entry_type
*table_base
;
1705 combined_entry_type
*symbol
;
1706 combined_entry_type
*aux
;
1707 unsigned int indaux
;
1710 if ((symbol
->u
.syment
.n_sclass
== C_EXT
1711 || symbol
->u
.syment
.n_sclass
== C_HIDEXT
)
1712 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
1714 /* This is a csect entry. */
1715 fprintf (file
, "AUX ");
1716 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) != XTY_LD
)
1718 BFD_ASSERT (! aux
->fix_scnlen
);
1719 fprintf (file
, "val %5ld", aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
1723 fprintf (file
, "indx ");
1724 if (! aux
->fix_scnlen
)
1725 fprintf (file
, "%4ld", aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
1727 fprintf (file
, "%4ld",
1728 (long) (aux
->u
.auxent
.x_csect
.x_scnlen
.p
- table_base
));
1731 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
1732 aux
->u
.auxent
.x_csect
.x_parmhash
,
1733 (unsigned int) aux
->u
.auxent
.x_csect
.x_snhash
,
1734 SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
),
1735 SMTYP_ALIGN (aux
->u
.auxent
.x_csect
.x_smtyp
),
1736 (unsigned int) aux
->u
.auxent
.x_csect
.x_smclas
,
1737 aux
->u
.auxent
.x_csect
.x_stab
,
1738 (unsigned int) aux
->u
.auxent
.x_csect
.x_snstab
);
1743 /* Return false to indicate that no special action was taken. */
1751 To write relocations, the back end steps though the
1752 canonical relocation table and create an
1753 @code{internal_reloc}. The symbol index to use is removed from
1754 the @code{offset} field in the symbol table supplied. The
1755 address comes directly from the sum of the section base
1756 address and the relocation offset; the type is dug directly
1757 from the howto field. Then the @code{internal_reloc} is
1758 swapped into the shape of an @code{external_reloc} and written
1765 static int compare_arelent_ptr
PARAMS ((const PTR
, const PTR
));
1767 /* AUX's ld wants relocations to be sorted */
1769 compare_arelent_ptr (x
, y
)
1773 const arelent
**a
= (const arelent
**) x
;
1774 const arelent
**b
= (const arelent
**) y
;
1775 bfd_size_type aadr
= (*a
)->address
;
1776 bfd_size_type badr
= (*b
)->address
;
1778 return (aadr
< badr
? -1 : badr
< aadr
? 1 : 0);
1781 #endif /* TARG_AUX */
1784 coff_write_relocs (abfd
, first_undef
)
1790 for (s
= abfd
->sections
; s
!= (asection
*) NULL
; s
= s
->next
)
1793 struct external_reloc dst
;
1799 /* sort relocations before we write them out */
1800 p
= (arelent
**) bfd_malloc (s
->reloc_count
* sizeof (arelent
*));
1801 if (p
== NULL
&& s
->reloc_count
> 0)
1803 memcpy (p
, s
->orelocation
, s
->reloc_count
* sizeof (arelent
*));
1804 qsort (p
, s
->reloc_count
, sizeof (arelent
*), compare_arelent_ptr
);
1807 if (bfd_seek (abfd
, s
->rel_filepos
, SEEK_SET
) != 0)
1809 for (i
= 0; i
< s
->reloc_count
; i
++)
1811 struct internal_reloc n
;
1813 memset ((PTR
) & n
, 0, sizeof (n
));
1815 /* Now we've renumbered the symbols we know where the
1816 undefined symbols live in the table. Check the reloc
1817 entries for symbols who's output bfd isn't the right one.
1818 This is because the symbol was undefined (which means
1819 that all the pointers are never made to point to the same
1820 place). This is a bad thing,'cause the symbols attached
1821 to the output bfd are indexed, so that the relocation
1822 entries know which symbol index they point to. So we
1823 have to look up the output symbol here. */
1825 if (q
->sym_ptr_ptr
[0]->the_bfd
!= abfd
)
1828 const char *sname
= q
->sym_ptr_ptr
[0]->name
;
1829 asymbol
**outsyms
= abfd
->outsymbols
;
1830 for (i
= first_undef
; outsyms
[i
]; i
++)
1832 const char *intable
= outsyms
[i
]->name
;
1833 if (strcmp (intable
, sname
) == 0) {
1834 /* got a hit, so repoint the reloc */
1835 q
->sym_ptr_ptr
= outsyms
+ i
;
1841 n
.r_vaddr
= q
->address
+ s
->vma
;
1844 /* The 29k const/consth reloc pair is a real kludge. The consth
1845 part doesn't have a symbol; it has an offset. So rebuilt
1847 if (q
->howto
->type
== R_IHCONST
)
1848 n
.r_symndx
= q
->addend
;
1853 if (q
->sym_ptr_ptr
== bfd_abs_section_ptr
->symbol_ptr_ptr
)
1854 /* This is a relocation relative to the absolute symbol. */
1858 n
.r_symndx
= get_index ((*(q
->sym_ptr_ptr
)));
1859 /* Take notice if the symbol reloc points to a symbol
1860 we don't have in our symbol table. What should we
1862 if (n
.r_symndx
> obj_conv_table_size (abfd
))
1867 #ifdef SWAP_OUT_RELOC_OFFSET
1868 n
.r_offset
= q
->addend
;
1872 /* Work out reloc type from what is required */
1873 SELECT_RELOC (n
, q
->howto
);
1875 n
.r_type
= q
->howto
->type
;
1877 coff_swap_reloc_out (abfd
, &n
, &dst
);
1878 if (bfd_write ((PTR
) & dst
, 1, RELSZ
, abfd
) != RELSZ
)
1891 /* Set flags and magic number of a coff file from architecture and machine
1892 type. Result is true if we can represent the arch&type, false if not. */
1895 coff_set_flags (abfd
, magicp
, flagsp
)
1897 unsigned int *magicp
;
1898 unsigned short *flagsp
;
1900 switch (bfd_get_arch (abfd
))
1905 switch (bfd_get_mach (abfd
))
1907 case bfd_mach_z8001
:
1910 case bfd_mach_z8002
:
1924 *magicp
= I960ROMAGIC
;
1926 ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC :
1927 I960RWMAGIC); FIXME???
1929 switch (bfd_get_mach (abfd
))
1931 case bfd_mach_i960_core
:
1934 case bfd_mach_i960_kb_sb
:
1937 case bfd_mach_i960_mc
:
1940 case bfd_mach_i960_xa
:
1943 case bfd_mach_i960_ca
:
1946 case bfd_mach_i960_ka_sa
:
1949 case bfd_mach_i960_jx
:
1952 case bfd_mach_i960_hx
:
1963 /* start-sanitize-tic80 */
1964 #ifdef TIC80_ARCH_MAGIC
1965 case bfd_arch_tic80
:
1966 *magicp
= TIC80_ARCH_MAGIC
;
1969 /* end-sanitize-tic80 */
1972 * magicp
= ARMMAGIC
;
1973 if (coff_data (abfd
)->flags
& F_APCS_26
)
1974 * flagsp
= F_APCS26
;
1975 switch (bfd_get_mach (abfd
))
1977 case bfd_mach_arm_2
: * flagsp
|= F_ARM_2
; break;
1978 case bfd_mach_arm_2a
: * flagsp
|= F_ARM_2a
; break;
1979 case bfd_mach_arm_3
: * flagsp
|= F_ARM_3
; break;
1980 case bfd_mach_arm_3M
: * flagsp
|= F_ARM_3M
; break;
1981 case bfd_mach_arm_4
: * flagsp
|= F_ARM_4
; break;
1982 case bfd_mach_arm_4T
: * flagsp
|= F_ARM_4T
; break;
1987 case bfd_arch_powerpc
:
1994 *magicp
= I386MAGIC
;
1996 /* Just overwrite the usual value if we're doing Lynx. */
1997 *magicp
= LYNXCOFFMAGIC
;
2004 *magicp
= I860MAGIC
;
2010 #ifdef APOLLOM68KMAGIC
2011 *magicp
= APOLLO_COFF_VERSION_NUMBER
;
2013 /* NAMES_HAVE_UNDERSCORE may be defined by coff-u68k.c. */
2014 #ifdef NAMES_HAVE_UNDERSCORE
2015 *magicp
= MC68KBCSMAGIC
;
2017 *magicp
= MC68MAGIC
;
2021 /* Just overwrite the usual value if we're doing Lynx. */
2022 *magicp
= LYNXCOFFMAGIC
;
2030 *magicp
= MC88OMAGIC
;
2035 case bfd_arch_h8300
:
2036 switch (bfd_get_mach (abfd
))
2038 case bfd_mach_h8300
:
2039 *magicp
= H8300MAGIC
;
2041 case bfd_mach_h8300h
:
2042 *magicp
= H8300HMAGIC
;
2044 case bfd_mach_h8300s
:
2045 *magicp
= H8300SMAGIC
;
2051 #ifdef SH_ARCH_MAGIC_BIG
2053 if (bfd_big_endian (abfd
))
2054 *magicp
= SH_ARCH_MAGIC_BIG
;
2056 *magicp
= SH_ARCH_MAGIC_LITTLE
;
2062 case bfd_arch_sparc
:
2063 *magicp
= SPARCMAGIC
;
2065 /* Just overwrite the usual value if we're doing Lynx. */
2066 *magicp
= LYNXCOFFMAGIC
;
2073 case bfd_arch_h8500
:
2074 *magicp
= H8500MAGIC
;
2078 #ifdef A29K_MAGIC_BIG
2080 if (bfd_big_endian (abfd
))
2081 *magicp
= A29K_MAGIC_BIG
;
2083 *magicp
= A29K_MAGIC_LITTLE
;
2089 case bfd_arch_we32k
:
2090 *magicp
= WE32KMAGIC
;
2096 case bfd_arch_rs6000
:
2098 case bfd_arch_powerpc
:
2100 *magicp
= U802TOCMAGIC
;
2105 default: /* Unknown architecture */
2106 /* return false; -- fall through to "return false" below, to avoid
2107 "statement never reached" errors on the one below. */
2116 coff_set_arch_mach (abfd
, arch
, machine
)
2118 enum bfd_architecture arch
;
2119 unsigned long machine
;
2122 unsigned short dummy2
;
2124 if (! bfd_default_set_arch_mach (abfd
, arch
, machine
))
2127 if (arch
!= bfd_arch_unknown
&&
2128 coff_set_flags (abfd
, &dummy1
, &dummy2
) != true)
2129 return false; /* We can't represent this type */
2131 return true; /* We're easy ... */
2135 /* Calculate the file position for each section. */
2138 coff_compute_section_file_positions (abfd
)
2142 asection
*previous
= (asection
*) NULL
;
2143 file_ptr sofar
= FILHSZ
;
2144 boolean align_adjust
;
2152 /* On XCOFF, if we have symbols, set up the .debug section. */
2153 if (bfd_get_symcount (abfd
) > 0)
2156 bfd_size_type i
, symcount
;
2160 symcount
= bfd_get_symcount (abfd
);
2161 for (symp
= abfd
->outsymbols
, i
= 0; i
< symcount
; symp
++, i
++)
2163 coff_symbol_type
*cf
;
2165 cf
= coff_symbol_from (abfd
, *symp
);
2167 && cf
->native
!= NULL
2168 && SYMNAME_IN_DEBUG (&cf
->native
->u
.syment
))
2172 len
= strlen (bfd_asymbol_name (*symp
));
2181 dsec
= bfd_make_section_old_way (abfd
, ".debug");
2184 dsec
->_raw_size
= sz
;
2185 dsec
->flags
|= SEC_HAS_CONTENTS
;
2190 #ifdef COFF_IMAGE_WITH_PE
2192 if (coff_data (abfd
)->link_info
)
2194 page_size
= pe_data (abfd
)->pe_opthdr
.FileAlignment
;
2197 page_size
= PE_DEF_FILE_ALIGNMENT
;
2199 #ifdef COFF_PAGE_SIZE
2200 int page_size
= COFF_PAGE_SIZE
;
2204 if (bfd_get_start_address (abfd
))
2206 /* A start address may have been added to the original file. In this
2207 case it will need an optional header to record it. */
2208 abfd
->flags
|= EXEC_P
;
2211 if (abfd
->flags
& EXEC_P
)
2214 else if (xcoff_data (abfd
)->full_aouthdr
)
2217 sofar
+= SMALL_AOUTSZ
;
2220 sofar
+= abfd
->section_count
* SCNHSZ
;
2223 /* XCOFF handles overflows in the reloc and line number count fields
2224 by allocating a new section header to hold the correct counts. */
2225 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
2226 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
2230 align_adjust
= false;
2231 for (current
= abfd
->sections
, count
= 1;
2232 current
!= (asection
*) NULL
;
2233 current
= current
->next
, ++count
)
2235 current
->target_index
= count
;
2237 /* Only deal with sections which have contents */
2238 if (!(current
->flags
& SEC_HAS_CONTENTS
))
2241 /* Align the sections in the file to the same boundary on
2242 which they are aligned in virtual memory. I960 doesn't
2243 do this (FIXME) so we can stay in sync with Intel. 960
2244 doesn't yet page from files... */
2246 if ((abfd
->flags
& EXEC_P
) != 0)
2248 /* make sure this section is aligned on the right boundary - by
2249 padding the previous section up if necessary */
2252 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
2253 if (previous
!= (asection
*) NULL
)
2255 previous
->_raw_size
+= sofar
- old_sofar
;
2261 /* In demand paged files the low order bits of the file offset
2262 must match the low order bits of the virtual address. */
2263 #ifdef COFF_PAGE_SIZE
2264 if ((abfd
->flags
& D_PAGED
) != 0
2265 && (current
->flags
& SEC_ALLOC
) != 0)
2266 sofar
+= (current
->vma
- sofar
) % page_size
;
2268 current
->filepos
= sofar
;
2270 #ifdef COFF_IMAGE_WITH_PE
2271 /* With PE we have to pad each section to be a multiple of its
2272 page size too, and remember both sizes. */
2274 if (coff_section_data (abfd
, current
) == NULL
)
2276 current
->used_by_bfd
=
2277 (PTR
) bfd_zalloc (abfd
, sizeof (struct coff_section_tdata
));
2278 if (current
->used_by_bfd
== NULL
)
2281 if (pei_section_data (abfd
, current
) == NULL
)
2283 coff_section_data (abfd
, current
)->tdata
=
2284 (PTR
) bfd_zalloc (abfd
, sizeof (struct pei_section_tdata
));
2285 if (coff_section_data (abfd
, current
)->tdata
== NULL
)
2288 if (pei_section_data (abfd
, current
)->virt_size
== 0)
2289 pei_section_data (abfd
, current
)->virt_size
= current
->_raw_size
;
2291 current
->_raw_size
= (current
->_raw_size
+ page_size
-1) & -page_size
;
2294 sofar
+= current
->_raw_size
;
2297 /* make sure that this section is of the right size too */
2298 if ((abfd
->flags
& EXEC_P
) == 0)
2300 bfd_size_type old_size
;
2302 old_size
= current
->_raw_size
;
2303 current
->_raw_size
= BFD_ALIGN (current
->_raw_size
,
2304 1 << current
->alignment_power
);
2305 align_adjust
= current
->_raw_size
!= old_size
;
2306 sofar
+= current
->_raw_size
- old_size
;
2311 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
2312 align_adjust
= sofar
!= old_sofar
;
2313 current
->_raw_size
+= sofar
- old_sofar
;
2317 #ifdef COFF_IMAGE_WITH_PE
2318 /* For PE we need to make sure we pad out to the aligned
2319 _raw_size, in case the caller only writes out data to the
2320 unaligned _raw_size. */
2321 if (pei_section_data (abfd
, current
)->virt_size
< current
->_raw_size
)
2322 align_adjust
= true;
2326 /* Force .lib sections to start at zero. The vma is then
2327 incremented in coff_set_section_contents. This is right for
2329 if (strcmp (current
->name
, _LIB
) == 0)
2330 bfd_set_section_vma (abfd
, current
, 0);
2336 /* It is now safe to write to the output file. If we needed an
2337 alignment adjustment for the last section, then make sure that
2338 there is a byte at offset sofar. If there are no symbols and no
2339 relocs, then nothing follows the last section. If we don't force
2340 the last byte out, then the file may appear to be truncated. */
2346 if (bfd_seek (abfd
, sofar
- 1, SEEK_SET
) != 0
2347 || bfd_write (&b
, 1, 1, abfd
) != 1)
2351 /* Make sure the relocations are aligned. We don't need to make
2352 sure that this byte exists, because it will only matter if there
2353 really are relocs. */
2354 sofar
= BFD_ALIGN (sofar
, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER
);
2356 obj_relocbase (abfd
) = sofar
;
2357 abfd
->output_has_begun
= true;
2364 /* This can never work, because it is called too late--after the
2365 section positions have been set. I can't figure out what it is
2366 for, so I am going to disable it--Ian Taylor 20 March 1996. */
2368 /* If .file, .text, .data, .bss symbols are missing, add them. */
2369 /* @@ Should we only be adding missing symbols, or overriding the aux
2370 values for existing section symbols? */
2372 coff_add_missing_symbols (abfd
)
2375 unsigned int nsyms
= bfd_get_symcount (abfd
);
2376 asymbol
**sympp
= abfd
->outsymbols
;
2379 int need_text
= 1, need_data
= 1, need_bss
= 1, need_file
= 1;
2381 for (i
= 0; i
< nsyms
; i
++)
2383 coff_symbol_type
*csym
= coff_symbol_from (abfd
, sympp
[i
]);
2387 /* only do this if there is a coff representation of the input
2389 if (csym
->native
&& csym
->native
->u
.syment
.n_sclass
== C_FILE
)
2394 name
= csym
->symbol
.name
;
2397 if (!strcmp (name
, _TEXT
))
2400 else if (!strcmp (name
, ".wtext"))
2403 else if (!strcmp (name
, _DATA
))
2405 else if (!strcmp (name
, _BSS
))
2409 /* Now i == bfd_get_symcount (abfd). */
2410 /* @@ For now, don't deal with .file symbol. */
2413 if (!need_text
&& !need_data
&& !need_bss
&& !need_file
)
2415 nsyms
+= need_text
+ need_data
+ need_bss
+ need_file
;
2416 sympp2
= (asymbol
**) bfd_alloc (abfd
, nsyms
* sizeof (asymbol
*));
2419 memcpy (sympp2
, sympp
, i
* sizeof (asymbol
*));
2422 /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */
2426 sympp2
[i
++] = coff_section_symbol (abfd
, _TEXT
);
2428 sympp2
[i
++] = coff_section_symbol (abfd
, _DATA
);
2430 sympp2
[i
++] = coff_section_symbol (abfd
, _BSS
);
2431 BFD_ASSERT (i
== nsyms
);
2432 bfd_set_symtab (abfd
, sympp2
, nsyms
);
2441 coff_write_object_contents (abfd
)
2445 boolean hasrelocs
= false;
2446 boolean haslinno
= false;
2448 file_ptr reloc_base
;
2449 file_ptr lineno_base
;
2451 unsigned long reloc_size
= 0;
2452 unsigned long lnno_size
= 0;
2453 boolean long_section_names
;
2454 asection
*text_sec
= NULL
;
2455 asection
*data_sec
= NULL
;
2456 asection
*bss_sec
= NULL
;
2457 struct internal_filehdr internal_f
;
2458 struct internal_aouthdr internal_a
;
2459 #ifdef COFF_LONG_SECTION_NAMES
2460 size_t string_size
= STRING_SIZE_SIZE
;
2463 bfd_set_error (bfd_error_system_call
);
2465 /* Make a pass through the symbol table to count line number entries and
2466 put them into the correct asections */
2468 lnno_size
= coff_count_linenumbers (abfd
) * LINESZ
;
2470 if (abfd
->output_has_begun
== false)
2472 if (! coff_compute_section_file_positions (abfd
))
2476 reloc_base
= obj_relocbase (abfd
);
2478 /* Work out the size of the reloc and linno areas */
2480 for (current
= abfd
->sections
; current
!= NULL
; current
=
2482 reloc_size
+= current
->reloc_count
* RELSZ
;
2484 lineno_base
= reloc_base
+ reloc_size
;
2485 sym_base
= lineno_base
+ lnno_size
;
2487 /* Indicate in each section->line_filepos its actual file address */
2488 for (current
= abfd
->sections
; current
!= NULL
; current
=
2491 if (current
->lineno_count
)
2493 current
->line_filepos
= lineno_base
;
2494 current
->moving_line_filepos
= lineno_base
;
2495 lineno_base
+= current
->lineno_count
* LINESZ
;
2499 current
->line_filepos
= 0;
2501 if (current
->reloc_count
)
2503 current
->rel_filepos
= reloc_base
;
2504 reloc_base
+= current
->reloc_count
* RELSZ
;
2508 current
->rel_filepos
= 0;
2512 /* Write section headers to the file. */
2513 internal_f
.f_nscns
= 0;
2515 if ((abfd
->flags
& EXEC_P
) != 0)
2516 scn_base
= FILHSZ
+ AOUTSZ
;
2521 if (xcoff_data (abfd
)->full_aouthdr
)
2524 scn_base
+= SMALL_AOUTSZ
;
2528 if (bfd_seek (abfd
, scn_base
, SEEK_SET
) != 0)
2531 long_section_names
= false;
2532 for (current
= abfd
->sections
;
2534 current
= current
->next
)
2536 struct internal_scnhdr section
;
2539 /* If we've got a .reloc section, remember. */
2541 #ifdef COFF_IMAGE_WITH_PE
2542 if (strcmp (current
->name
, ".reloc") == 0)
2544 pe_data (abfd
)->has_reloc_section
= 1;
2549 internal_f
.f_nscns
++;
2551 strncpy (section
.s_name
, current
->name
, SCNNMLEN
);
2553 #ifdef COFF_LONG_SECTION_NAMES
2554 /* Handle long section names as in PE. This must be compatible
2555 with the code in coff_write_symbols. */
2559 len
= strlen (current
->name
);
2562 memset (section
.s_name
, 0, SCNNMLEN
);
2563 sprintf (section
.s_name
, "/%lu", (unsigned long) string_size
);
2564 string_size
+= len
+ 1;
2565 long_section_names
= true;
2571 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
2572 Ian Taylor <ian@cygnus.com>. */
2573 if (strcmp (current
->name
, _LIB
) == 0)
2574 section
.s_vaddr
= 0;
2577 section
.s_vaddr
= current
->vma
;
2578 section
.s_paddr
= current
->lma
;
2579 section
.s_size
= current
->_raw_size
;
2582 section
.s_paddr
= 0;
2584 #ifdef COFF_IMAGE_WITH_PE
2585 /* Reminder: s_paddr holds the virtual size of the section. */
2586 if (coff_section_data (abfd
, current
) != NULL
2587 && pei_section_data (abfd
, current
) != NULL
)
2588 section
.s_paddr
= pei_section_data (abfd
, current
)->virt_size
;
2590 section
.s_paddr
= 0;
2594 If this section has no size or is unloadable then the scnptr
2597 if (current
->_raw_size
== 0 ||
2598 (current
->flags
& (SEC_LOAD
| SEC_HAS_CONTENTS
)) == 0)
2600 section
.s_scnptr
= 0;
2604 section
.s_scnptr
= current
->filepos
;
2606 section
.s_relptr
= current
->rel_filepos
;
2607 section
.s_lnnoptr
= current
->line_filepos
;
2608 section
.s_nreloc
= current
->reloc_count
;
2609 section
.s_nlnno
= current
->lineno_count
;
2610 if (current
->reloc_count
!= 0)
2612 if (current
->lineno_count
!= 0)
2616 /* Indicate the use of an XCOFF overflow section header. */
2617 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
2619 section
.s_nreloc
= 0xffff;
2620 section
.s_nlnno
= 0xffff;
2624 section
.s_flags
= sec_to_styp_flags (current
->name
, current
->flags
);
2626 if (!strcmp (current
->name
, _TEXT
))
2630 else if (!strcmp (current
->name
, _DATA
))
2634 else if (!strcmp (current
->name
, _BSS
))
2640 section
.s_align
= (current
->alignment_power
2641 ? 1 << current
->alignment_power
2646 #ifdef COFF_IMAGE_WITH_PE
2647 /* suppress output of the sections if they are null. ld includes
2648 the bss and data sections even if there is no size assigned
2649 to them. NT loader doesn't like it if these section headers are
2650 included if the sections themselves are not needed */
2651 if (section
.s_size
== 0)
2652 internal_f
.f_nscns
--;
2657 if (coff_swap_scnhdr_out (abfd
, §ion
, &buff
) == 0
2658 || bfd_write ((PTR
) (&buff
), 1, SCNHSZ
, abfd
) != SCNHSZ
)
2663 /* PE stores COMDAT section information in the symbol table. If
2664 this section is supposed to have some COMDAT info, track down
2665 the symbol in the symbol table and modify it. */
2666 if ((current
->flags
& SEC_LINK_ONCE
) != 0)
2668 unsigned int i
, count
;
2670 coff_symbol_type
*csym
;
2672 count
= bfd_get_symcount (abfd
);
2673 for (i
= 0, psym
= abfd
->outsymbols
; i
< count
; i
++, psym
++)
2675 /* Here *PSYM is the section symbol for CURRENT. */
2677 if (strcmp ((*psym
)->name
, current
->name
) == 0)
2679 csym
= coff_symbol_from (abfd
, *psym
);
2681 || csym
->native
== NULL
2682 || csym
->native
->u
.syment
.n_numaux
< 1
2683 || csym
->native
->u
.syment
.n_sclass
!= C_STAT
2684 || csym
->native
->u
.syment
.n_type
!= T_NULL
)
2691 Note that we might not if we're converting the file from
2692 some other object file format. */
2695 combined_entry_type
*aux
;
2697 /* We don't touch the x_checksum field. The
2698 x_associated field is not currently supported. */
2700 aux
= csym
->native
+ 1;
2701 switch (current
->flags
& SEC_LINK_DUPLICATES
)
2703 case SEC_LINK_DUPLICATES_DISCARD
:
2704 aux
->u
.auxent
.x_scn
.x_comdat
= IMAGE_COMDAT_SELECT_ANY
;
2707 case SEC_LINK_DUPLICATES_ONE_ONLY
:
2708 aux
->u
.auxent
.x_scn
.x_comdat
=
2709 IMAGE_COMDAT_SELECT_NODUPLICATES
;
2712 case SEC_LINK_DUPLICATES_SAME_SIZE
:
2713 aux
->u
.auxent
.x_scn
.x_comdat
=
2714 IMAGE_COMDAT_SELECT_SAME_SIZE
;
2717 case SEC_LINK_DUPLICATES_SAME_CONTENTS
:
2718 aux
->u
.auxent
.x_scn
.x_comdat
=
2719 IMAGE_COMDAT_SELECT_EXACT_MATCH
;
2724 #endif /* COFF_WITH_PE */
2728 /* XCOFF handles overflows in the reloc and line number count fields
2729 by creating a new section header to hold the correct values. */
2730 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
2732 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
2734 struct internal_scnhdr scnhdr
;
2737 internal_f
.f_nscns
++;
2738 strncpy (&(scnhdr
.s_name
[0]), current
->name
, 8);
2739 scnhdr
.s_paddr
= current
->reloc_count
;
2740 scnhdr
.s_vaddr
= current
->lineno_count
;
2742 scnhdr
.s_scnptr
= 0;
2743 scnhdr
.s_relptr
= current
->rel_filepos
;
2744 scnhdr
.s_lnnoptr
= current
->line_filepos
;
2745 scnhdr
.s_nreloc
= current
->target_index
;
2746 scnhdr
.s_nlnno
= current
->target_index
;
2747 scnhdr
.s_flags
= STYP_OVRFLO
;
2748 if (coff_swap_scnhdr_out (abfd
, &scnhdr
, &buff
) == 0
2749 || bfd_write ((PTR
) &buff
, 1, SCNHSZ
, abfd
) != SCNHSZ
)
2755 /* OK, now set up the filehdr... */
2757 /* Don't include the internal abs section in the section count */
2760 We will NOT put a fucking timestamp in the header here. Every time you
2761 put it back, I will come in and take it out again. I'm sorry. This
2762 field does not belong here. We fill it with a 0 so it compares the
2763 same but is not a reasonable time. -- gnu@cygnus.com
2765 internal_f
.f_timdat
= 0;
2767 internal_f
.f_flags
= 0;
2769 if (abfd
->flags
& EXEC_P
)
2770 internal_f
.f_opthdr
= AOUTSZ
;
2773 internal_f
.f_opthdr
= 0;
2775 if (xcoff_data (abfd
)->full_aouthdr
)
2776 internal_f
.f_opthdr
= AOUTSZ
;
2778 internal_f
.f_opthdr
= SMALL_AOUTSZ
;
2783 internal_f
.f_flags
|= F_RELFLG
;
2785 internal_f
.f_flags
|= F_LNNO
;
2786 if (abfd
->flags
& EXEC_P
)
2787 internal_f
.f_flags
|= F_EXEC
;
2789 /* FIXME: this is wrong for PPC_PE! */
2790 if (bfd_little_endian (abfd
))
2791 internal_f
.f_flags
|= F_AR32WR
;
2793 internal_f
.f_flags
|= F_AR32W
;
2796 FIXME, should do something about the other byte orders and
2801 if ((abfd
->flags
& DYNAMIC
) != 0)
2802 internal_f
.f_flags
|= F_SHROBJ
;
2803 if (bfd_get_section_by_name (abfd
, _LOADER
) != NULL
)
2804 internal_f
.f_flags
|= F_DYNLOAD
;
2807 memset (&internal_a
, 0, sizeof internal_a
);
2809 /* Set up architecture-dependent stuff */
2812 unsigned int magic
= 0;
2813 unsigned short flags
= 0;
2814 coff_set_flags (abfd
, &magic
, &flags
);
2815 internal_f
.f_magic
= magic
;
2816 internal_f
.f_flags
|= flags
;
2817 /* ...and the "opt"hdr... */
2820 #ifdef ULTRA3 /* NYU's machine */
2821 /* FIXME: This is a bogus check. I really want to see if there
2822 * is a .shbss or a .shdata section, if so then set the magic
2823 * number to indicate a shared data executable.
2825 if (internal_f
.f_nscns
>= 7)
2826 internal_a
.magic
= SHMAGIC
; /* Shared magic */
2829 internal_a
.magic
= NMAGIC
; /* Assume separate i/d */
2830 #define __A_MAGIC_SET__
2833 internal_a
.magic
= TIC80_ARCH_MAGIC
;
2834 #define __A_MAGIC_SET__
2837 /* FIXME: What are the a.out magic numbers for the i860? */
2838 internal_a
.magic
= 0;
2839 #define __A_MAGIC_SET__
2842 internal_a
.magic
= (magic
== I960ROMAGIC
? NMAGIC
: OMAGIC
);
2843 #define __A_MAGIC_SET__
2846 #define __A_MAGIC_SET__
2847 internal_a
.magic
= PAGEMAGICBCS
;
2851 #define __A_MAGIC_SET__
2852 internal_a
.magic
= APOLLO_COFF_VERSION_NUMBER
;
2855 #if defined(M68) || defined(WE32K) || defined(M68K)
2856 #define __A_MAGIC_SET__
2858 internal_a
.magic
= LYNXCOFFMAGIC
;
2860 #if defined(TARG_AUX)
2861 internal_a
.magic
= (abfd
->flags
& D_PAGED
? PAGEMAGICPEXECPAGED
:
2862 abfd
->flags
& WP_TEXT
? PAGEMAGICPEXECSWAPPED
:
2863 PAGEMAGICEXECSWAPPED
);
2865 #if defined (PAGEMAGICPEXECPAGED)
2866 internal_a
.magic
= PAGEMAGICPEXECPAGED
;
2868 #endif /* TARG_AUX */
2870 #endif /* M68 || WE32K || M68K */
2873 #define __A_MAGIC_SET__
2874 internal_a
.magic
= ZMAGIC
;
2878 #define __A_MAGIC_SET__
2879 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
2883 #define __A_MAGIC_SET__
2885 internal_a
.magic
= LYNXCOFFMAGIC
;
2887 internal_a
.magic
= ZMAGIC
;
2892 #define __A_MAGIC_SET__
2894 internal_a
.magic
= LYNXCOFFMAGIC
;
2899 #define __A_MAGIC_SET__
2900 internal_a
.magic
= (abfd
->flags
& D_PAGED
) ? RS6K_AOUTHDR_ZMAGIC
:
2901 (abfd
->flags
& WP_TEXT
) ? RS6K_AOUTHDR_NMAGIC
:
2902 RS6K_AOUTHDR_OMAGIC
;
2905 #ifndef __A_MAGIC_SET__
2906 #include "Your aouthdr magic number is not being set!"
2908 #undef __A_MAGIC_SET__
2912 /* FIXME: Does anybody ever set this to another value? */
2913 internal_a
.vstamp
= 0;
2915 /* Now should write relocs, strings, syms */
2916 obj_sym_filepos (abfd
) = sym_base
;
2918 if (bfd_get_symcount (abfd
) != 0)
2922 if (!coff_add_missing_symbols (abfd
))
2925 if (!coff_renumber_symbols (abfd
, &firstundef
))
2927 coff_mangle_symbols (abfd
);
2928 if (! coff_write_symbols (abfd
))
2930 if (! coff_write_linenumbers (abfd
))
2932 if (! coff_write_relocs (abfd
, firstundef
))
2935 #ifdef COFF_IMAGE_WITH_PE
2937 else if ((abfd
->flags
& EXEC_P
) != 0)
2941 /* PowerPC PE appears to require that all executable files be
2942 rounded up to the page size. */
2945 BFD_ALIGN (sym_base
, COFF_PAGE_SIZE
) - 1,
2947 || bfd_write (&b
, 1, 1, abfd
) != 1)
2953 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
2954 backend linker, and obj_raw_syment_count is not valid until after
2955 coff_write_symbols is called. */
2956 if (obj_raw_syment_count (abfd
) != 0)
2958 internal_f
.f_symptr
= sym_base
;
2960 /* AIX appears to require that F_RELFLG not be set if there are
2961 local symbols but no relocations. */
2962 internal_f
.f_flags
&=~ F_RELFLG
;
2967 if (long_section_names
)
2968 internal_f
.f_symptr
= sym_base
;
2970 internal_f
.f_symptr
= 0;
2971 internal_f
.f_flags
|= F_LSYMS
;
2976 internal_a
.tsize
= bfd_get_section_size_before_reloc (text_sec
);
2977 internal_a
.text_start
= internal_a
.tsize
? text_sec
->vma
: 0;
2981 internal_a
.dsize
= bfd_get_section_size_before_reloc (data_sec
);
2982 internal_a
.data_start
= internal_a
.dsize
? data_sec
->vma
: 0;
2986 internal_a
.bsize
= bfd_get_section_size_before_reloc (bss_sec
);
2987 if (internal_a
.bsize
&& bss_sec
->vma
< internal_a
.data_start
)
2988 internal_a
.data_start
= bss_sec
->vma
;
2991 internal_a
.entry
= bfd_get_start_address (abfd
);
2992 internal_f
.f_nsyms
= obj_raw_syment_count (abfd
);
2995 if (xcoff_data (abfd
)->full_aouthdr
)
2998 asection
*loader_sec
;
3000 internal_a
.vstamp
= 1;
3002 internal_a
.o_snentry
= xcoff_data (abfd
)->snentry
;
3003 if (internal_a
.o_snentry
== 0)
3004 internal_a
.entry
= (bfd_vma
) -1;
3006 if (text_sec
!= NULL
)
3008 internal_a
.o_sntext
= text_sec
->target_index
;
3009 internal_a
.o_algntext
= bfd_get_section_alignment (abfd
, text_sec
);
3013 internal_a
.o_sntext
= 0;
3014 internal_a
.o_algntext
= 0;
3016 if (data_sec
!= NULL
)
3018 internal_a
.o_sndata
= data_sec
->target_index
;
3019 internal_a
.o_algndata
= bfd_get_section_alignment (abfd
, data_sec
);
3023 internal_a
.o_sndata
= 0;
3024 internal_a
.o_algndata
= 0;
3026 loader_sec
= bfd_get_section_by_name (abfd
, ".loader");
3027 if (loader_sec
!= NULL
)
3028 internal_a
.o_snloader
= loader_sec
->target_index
;
3030 internal_a
.o_snloader
= 0;
3031 if (bss_sec
!= NULL
)
3032 internal_a
.o_snbss
= bss_sec
->target_index
;
3034 internal_a
.o_snbss
= 0;
3036 toc
= xcoff_data (abfd
)->toc
;
3037 internal_a
.o_toc
= toc
;
3038 internal_a
.o_sntoc
= xcoff_data (abfd
)->sntoc
;
3040 internal_a
.o_modtype
= xcoff_data (abfd
)->modtype
;
3041 if (xcoff_data (abfd
)->cputype
!= -1)
3042 internal_a
.o_cputype
= xcoff_data (abfd
)->cputype
;
3045 switch (bfd_get_arch (abfd
))
3047 case bfd_arch_rs6000
:
3048 internal_a
.o_cputype
= 4;
3050 case bfd_arch_powerpc
:
3051 if (bfd_get_mach (abfd
) == 0)
3052 internal_a
.o_cputype
= 3;
3054 internal_a
.o_cputype
= 1;
3060 internal_a
.o_maxstack
= xcoff_data (abfd
)->maxstack
;
3061 internal_a
.o_maxdata
= xcoff_data (abfd
)->maxdata
;
3065 /* now write them */
3066 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
) != 0)
3070 coff_swap_filehdr_out (abfd
, (PTR
) & internal_f
, (PTR
) buff
);
3071 if (bfd_write ((PTR
) buff
, 1, FILHSZ
, abfd
) != FILHSZ
)
3074 if (abfd
->flags
& EXEC_P
)
3076 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
3077 include/coff/pe.h sets AOUTSZ == sizeof(PEAOUTHDR)) */
3079 coff_swap_aouthdr_out (abfd
, (PTR
) & internal_a
, (PTR
) buff
);
3080 if (bfd_write ((PTR
) buff
, 1, AOUTSZ
, abfd
) != AOUTSZ
)
3089 /* XCOFF seems to always write at least a small a.out header. */
3090 coff_swap_aouthdr_out (abfd
, (PTR
) &internal_a
, (PTR
) &buff
);
3091 if (xcoff_data (abfd
)->full_aouthdr
)
3094 size
= SMALL_AOUTSZ
;
3095 if (bfd_write ((PTR
) &buff
, 1, size
, abfd
) != size
)
3104 coff_set_section_contents (abfd
, section
, location
, offset
, count
)
3109 bfd_size_type count
;
3111 if (abfd
->output_has_begun
== false) /* set by bfd.c handler */
3113 if (! coff_compute_section_file_positions (abfd
))
3117 #if defined(_LIB) && !defined(TARG_AUX)
3119 /* The physical address field of a .lib section is used to hold the
3120 number of shared libraries in the section. This code counts the
3121 number of sections being written, and increments the lma field
3124 I have found no documentation on the contents of this section.
3125 Experimentation indicates that the section contains zero or more
3126 records, each of which has the following structure:
3128 - a (four byte) word holding the length of this record, in words,
3129 - a word that always seems to be set to "2",
3130 - the path to a shared library, null-terminated and then padded
3131 to a whole word boundary.
3133 bfd_assert calls have been added to alert if an attempt is made
3134 to write a section which doesn't follow these assumptions. The
3135 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
3136 <robertl@arnet.com> (Thanks!).
3138 Gvran Uddeborg <gvran@uddeborg.pp.se> */
3140 if (strcmp (section
->name
, _LIB
) == 0)
3142 bfd_byte
*rec
, *recend
;
3144 rec
= (bfd_byte
*) location
;
3145 recend
= rec
+ count
;
3146 while (rec
< recend
)
3149 rec
+= bfd_get_32 (abfd
, rec
) * 4;
3152 BFD_ASSERT (rec
== recend
);
3157 /* Don't write out bss sections - one way to do this is to
3158 see if the filepos has not been set. */
3159 if (section
->filepos
== 0)
3162 if (bfd_seek (abfd
, (file_ptr
) (section
->filepos
+ offset
), SEEK_SET
) != 0)
3167 return (bfd_write (location
, 1, count
, abfd
) == count
) ? true : false;
3173 coff_close_and_cleanup (abfd
)
3176 if (!bfd_read_p (abfd
))
3177 switch (abfd
->format
)
3180 if (!_bfd_write_archive_contents (abfd
))
3184 if (!coff_write_object_contents (abfd
))
3188 bfd_set_error (bfd_error_invalid_operation
);
3192 /* We depend on bfd_close to free all the memory on the objalloc. */
3199 buy_and_read (abfd
, where
, seek_direction
, size
)
3205 PTR area
= (PTR
) bfd_alloc (abfd
, size
);
3208 if (bfd_seek (abfd
, where
, seek_direction
) != 0
3209 || bfd_read (area
, 1, size
, abfd
) != size
)
3212 } /* buy_and_read() */
3218 Creating the linenumber table is done by reading in the entire
3219 coff linenumber table, and creating another table for internal use.
3221 A coff linenumber table is structured so that each function
3222 is marked as having a line number of 0. Each line within the
3223 function is an offset from the first line in the function. The
3224 base of the line number information for the table is stored in
3225 the symbol associated with the function.
3227 The information is copied from the external to the internal
3228 table, and each symbol which marks a function is marked by
3231 How does this work ?
3236 coff_slurp_line_table (abfd
, asect
)
3240 LINENO
*native_lineno
;
3241 alent
*lineno_cache
;
3243 BFD_ASSERT (asect
->lineno
== (alent
*) NULL
);
3245 native_lineno
= (LINENO
*) buy_and_read (abfd
,
3246 asect
->line_filepos
,
3249 asect
->lineno_count
));
3251 (alent
*) bfd_alloc (abfd
, (size_t) ((asect
->lineno_count
+ 1) * sizeof (alent
)));
3252 if (lineno_cache
== NULL
)
3256 unsigned int counter
= 0;
3257 alent
*cache_ptr
= lineno_cache
;
3258 LINENO
*src
= native_lineno
;
3260 while (counter
< asect
->lineno_count
)
3262 struct internal_lineno dst
;
3263 coff_swap_lineno_in (abfd
, src
, &dst
);
3264 cache_ptr
->line_number
= dst
.l_lnno
;
3266 if (cache_ptr
->line_number
== 0)
3270 coff_symbol_type
*sym
;
3273 symndx
= dst
.l_addr
.l_symndx
;
3274 if (symndx
< 0 || symndx
>= obj_raw_syment_count (abfd
))
3276 (*_bfd_error_handler
)
3277 ("%s: warning: illegal symbol index %ld in line numbers",
3278 bfd_get_filename (abfd
), dst
.l_addr
.l_symndx
);
3282 /* FIXME: We should not be casting between ints and
3283 pointers like this. */
3284 sym
= ((coff_symbol_type
*)
3285 ((symndx
+ obj_raw_syments (abfd
))
3286 ->u
.syment
._n
._n_n
._n_zeroes
));
3287 cache_ptr
->u
.sym
= (asymbol
*) sym
;
3288 if (sym
->lineno
!= NULL
&& ! warned
)
3290 (*_bfd_error_handler
)
3291 ("%s: warning: duplicate line number information for `%s'",
3292 bfd_get_filename (abfd
),
3293 bfd_asymbol_name (&sym
->symbol
));
3295 sym
->lineno
= cache_ptr
;
3299 cache_ptr
->u
.offset
= dst
.l_addr
.l_paddr
3300 - bfd_section_vma (abfd
, asect
);
3301 } /* If no linenumber expect a symbol index */
3307 cache_ptr
->line_number
= 0;
3310 asect
->lineno
= lineno_cache
;
3311 /* FIXME, free native_lineno here, or use alloca or something. */
3316 coff_slurp_symbol_table (abfd
)
3319 combined_entry_type
*native_symbols
;
3320 coff_symbol_type
*cached_area
;
3321 unsigned int *table_ptr
;
3323 unsigned int number_of_symbols
= 0;
3325 if (obj_symbols (abfd
))
3328 /* Read in the symbol table */
3329 if ((native_symbols
= coff_get_normalized_symtab (abfd
)) == NULL
)
3334 /* Allocate enough room for all the symbols in cached form */
3335 cached_area
= ((coff_symbol_type
*)
3337 (obj_raw_syment_count (abfd
)
3338 * sizeof (coff_symbol_type
))));
3340 if (cached_area
== NULL
)
3342 table_ptr
= ((unsigned int *)
3344 (obj_raw_syment_count (abfd
)
3345 * sizeof (unsigned int))));
3347 if (table_ptr
== NULL
)
3351 coff_symbol_type
*dst
= cached_area
;
3352 unsigned int last_native_index
= obj_raw_syment_count (abfd
);
3353 unsigned int this_index
= 0;
3354 while (this_index
< last_native_index
)
3356 combined_entry_type
*src
= native_symbols
+ this_index
;
3357 table_ptr
[this_index
] = number_of_symbols
;
3358 dst
->symbol
.the_bfd
= abfd
;
3360 dst
->symbol
.name
= (char *) (src
->u
.syment
._n
._n_n
._n_offset
);
3361 /* We use the native name field to point to the cached field. */
3362 src
->u
.syment
._n
._n_n
._n_zeroes
= (long) dst
;
3363 dst
->symbol
.section
= coff_section_from_bfd_index (abfd
,
3364 src
->u
.syment
.n_scnum
);
3365 dst
->symbol
.flags
= 0;
3366 dst
->done_lineno
= false;
3368 switch (src
->u
.syment
.n_sclass
)
3373 dst
->symbol
.value
= src
->u
.syment
.n_value
- dst
->symbol
.section
->vma
;
3374 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
3375 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
3377 /* Fall through to next case */
3386 /* PE uses storage class 0x68 to denote a section symbol */
3388 /* PE uses storage class 0x67 for a weak external symbol. */
3391 if ((src
->u
.syment
.n_scnum
) == 0)
3393 if ((src
->u
.syment
.n_value
) == 0)
3395 dst
->symbol
.section
= bfd_und_section_ptr
;
3396 dst
->symbol
.value
= 0;
3400 dst
->symbol
.section
= bfd_com_section_ptr
;
3401 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
3406 /* Base the value as an index from the base of the
3409 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
3410 dst
->symbol
.value
= (src
->u
.syment
.n_value
3411 - dst
->symbol
.section
->vma
);
3413 if (ISFCN ((src
->u
.syment
.n_type
)))
3415 /* A function ext does not go at the end of a
3417 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
3422 /* A C_HIDEXT symbol is not global. */
3423 if (src
->u
.syment
.n_sclass
== C_HIDEXT
)
3424 dst
->symbol
.flags
= BSF_LOCAL
;
3425 /* A symbol with a csect entry should not go at the end. */
3426 if (src
->u
.syment
.n_numaux
> 0)
3427 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
3431 if (src
->u
.syment
.n_sclass
== C_NT_WEAK
)
3432 dst
->symbol
.flags
= BSF_WEAK
;
3437 case C_STAT
: /* static */
3439 case C_LEAFSTAT
: /* static leaf procedure */
3441 case C_LABEL
: /* label */
3442 if (src
->u
.syment
.n_scnum
== -2)
3443 dst
->symbol
.flags
= BSF_DEBUGGING
;
3445 dst
->symbol
.flags
= BSF_LOCAL
;
3447 /* Base the value as an index from the base of the
3448 section, if there is one. */
3449 if (dst
->symbol
.section
)
3450 dst
->symbol
.value
= (src
->u
.syment
.n_value
3451 - dst
->symbol
.section
->vma
);
3453 dst
->symbol
.value
= src
->u
.syment
.n_value
;
3456 case C_MOS
: /* member of structure */
3457 case C_EOS
: /* end of structure */
3458 #ifdef NOTDEF /* C_AUTOARG has the same value */
3460 case C_GLBLREG
: /* A29k-specific storage class */
3463 case C_REGPARM
: /* register parameter */
3464 case C_REG
: /* register variable */
3466 case C_AUTOARG
: /* 960-specific storage class */
3468 case C_TPDEF
: /* type definition */
3470 case C_AUTO
: /* automatic variable */
3471 case C_FIELD
: /* bit field */
3472 case C_ENTAG
: /* enumeration tag */
3473 case C_MOE
: /* member of enumeration */
3474 case C_MOU
: /* member of union */
3475 case C_UNTAG
: /* union tag */
3476 dst
->symbol
.flags
= BSF_DEBUGGING
;
3477 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
3480 case C_FILE
: /* file name */
3481 case C_STRTAG
: /* structure tag */
3496 dst
->symbol
.flags
= BSF_DEBUGGING
;
3497 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
3501 case C_BINCL
: /* beginning of include file */
3502 case C_EINCL
: /* ending of include file */
3503 /* The value is actually a pointer into the line numbers
3504 of the file. We locate the line number entry, and
3505 set the section to the section which contains it, and
3506 the value to the index in that section. */
3510 dst
->symbol
.flags
= BSF_DEBUGGING
;
3511 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
3512 if (sec
->line_filepos
<= (file_ptr
) src
->u
.syment
.n_value
3513 && ((file_ptr
) (sec
->line_filepos
3514 + sec
->lineno_count
* LINESZ
)
3515 > (file_ptr
) src
->u
.syment
.n_value
))
3518 dst
->symbol
.value
= 0;
3521 dst
->symbol
.section
= sec
;
3522 dst
->symbol
.value
= ((src
->u
.syment
.n_value
3523 - sec
->line_filepos
)
3531 dst
->symbol
.flags
= BSF_DEBUGGING
;
3533 /* The value is actually a symbol index. Save a pointer
3534 to the symbol instead of the index. FIXME: This
3535 should use a union. */
3536 src
->u
.syment
.n_value
=
3537 (long) (native_symbols
+ src
->u
.syment
.n_value
);
3538 dst
->symbol
.value
= src
->u
.syment
.n_value
;
3543 case C_BLOCK
: /* ".bb" or ".eb" */
3544 case C_FCN
: /* ".bf" or ".ef" */
3545 case C_EFCN
: /* physical end of function */
3546 dst
->symbol
.flags
= BSF_LOCAL
;
3547 /* Base the value as an index from the base of the
3549 dst
->symbol
.value
= (src
->u
.syment
.n_value
3550 - dst
->symbol
.section
->vma
);
3554 case C_EXTDEF
: /* external definition */
3555 case C_ULABEL
: /* undefined label */
3556 case C_USTATIC
: /* undefined static */
3557 #ifndef COFF_WITH_PE
3558 /* C_LINE in regular coff is 0x68. NT has taken over this storage
3559 class to represent a section symbol */
3560 case C_LINE
: /* line # reformatted as symbol table entry */
3561 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
3562 case C_ALIAS
: /* duplicate tag */
3564 case C_HIDDEN
: /* ext symbol in dmert public lib */
3566 (*_bfd_error_handler
)
3567 ("%s: Unrecognized storage class %d for %s symbol `%s'",
3568 bfd_get_filename (abfd
), src
->u
.syment
.n_sclass
,
3569 dst
->symbol
.section
->name
, dst
->symbol
.name
);
3570 dst
->symbol
.flags
= BSF_DEBUGGING
;
3571 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
3575 /* BFD_ASSERT(dst->symbol.flags != 0);*/
3579 dst
->symbol
.udata
.i
= 0;
3580 dst
->lineno
= (alent
*) NULL
;
3581 this_index
+= (src
->u
.syment
.n_numaux
) + 1;
3583 number_of_symbols
++;
3584 } /* walk the native symtab */
3585 } /* bfdize the native symtab */
3587 obj_symbols (abfd
) = cached_area
;
3588 obj_raw_syments (abfd
) = native_symbols
;
3590 bfd_get_symcount (abfd
) = number_of_symbols
;
3591 obj_convert (abfd
) = table_ptr
;
3592 /* Slurp the line tables for each section too */
3598 coff_slurp_line_table (abfd
, p
);
3603 } /* coff_slurp_symbol_table() */
3605 /* Check whether a symbol is globally visible. This is used by the
3606 COFF backend linker code in cofflink.c, since a couple of targets
3607 have globally visible symbols which are not class C_EXT. This
3608 function need not handle the case of n_class == C_EXT. */
3610 #undef OTHER_GLOBAL_CLASS
3613 #define OTHER_GLOBAL_CLASS C_LEAFEXT
3617 #define OTHER_GLOBAL_CLASS C_SECTION
3620 #ifdef OTHER_GLOBAL_CLASS
3622 static boolean coff_sym_is_global
PARAMS ((bfd
*, struct internal_syment
*));
3625 coff_sym_is_global (abfd
, syment
)
3627 struct internal_syment
*syment
;
3629 if (syment
->n_sclass
== OTHER_GLOBAL_CLASS
)
3634 #undef OTHER_GLOBAL_CLASS
3636 #else /* ! defined (OTHER_GLOBAL_CLASS) */
3638 /* sym_is_global should not be defined if it has nothing to do. */
3640 #define coff_sym_is_global 0
3642 #endif /* ! defined (OTHER_GLOBAL_CLASS) */
3648 Coff relocations are easily transformed into the internal BFD form
3651 Reading a coff relocation table is done in the following stages:
3653 o Read the entire coff relocation table into memory.
3655 o Process each relocation in turn; first swap it from the
3656 external to the internal form.
3658 o Turn the symbol referenced in the relocation's symbol index
3659 into a pointer into the canonical symbol table.
3660 This table is the same as the one returned by a call to
3661 @code{bfd_canonicalize_symtab}. The back end will call that
3662 routine and save the result if a canonicalization hasn't been done.
3664 o The reloc index is turned into a pointer to a howto
3665 structure, in a back end specific way. For instance, the 386
3666 and 960 use the @code{r_type} to directly produce an index
3667 into a howto table vector; the 88k subtracts a number from the
3668 @code{r_type} field and creates an addend field.
3674 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
3676 coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \
3677 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
3678 coffsym = (obj_symbols (abfd) \
3679 + (cache_ptr->sym_ptr_ptr - symbols)); \
3681 coffsym = coff_symbol_from (abfd, ptr); \
3682 if (coffsym != (coff_symbol_type *) NULL \
3683 && coffsym->native->u.syment.n_scnum == 0) \
3684 cache_ptr->addend = 0; \
3685 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
3686 && ptr->section != (asection *) NULL) \
3687 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
3689 cache_ptr->addend = 0; \
3694 coff_slurp_reloc_table (abfd
, asect
, symbols
)
3699 RELOC
*native_relocs
;
3700 arelent
*reloc_cache
;
3705 if (asect
->relocation
)
3707 if (asect
->reloc_count
== 0)
3709 if (asect
->flags
& SEC_CONSTRUCTOR
)
3711 if (!coff_slurp_symbol_table (abfd
))
3714 (RELOC
*) buy_and_read (abfd
,
3718 asect
->reloc_count
));
3719 reloc_cache
= (arelent
*)
3720 bfd_alloc (abfd
, (size_t) (asect
->reloc_count
* sizeof (arelent
)));
3722 if (reloc_cache
== NULL
)
3726 for (idx
= 0; idx
< asect
->reloc_count
; idx
++)
3728 struct internal_reloc dst
;
3729 struct external_reloc
*src
;
3730 #ifndef RELOC_PROCESSING
3734 cache_ptr
= reloc_cache
+ idx
;
3735 src
= native_relocs
+ idx
;
3737 coff_swap_reloc_in (abfd
, src
, &dst
);
3739 #ifdef RELOC_PROCESSING
3740 RELOC_PROCESSING (cache_ptr
, &dst
, symbols
, abfd
, asect
);
3742 cache_ptr
->address
= dst
.r_vaddr
;
3744 if (dst
.r_symndx
!= -1)
3746 if (dst
.r_symndx
< 0 || dst
.r_symndx
>= obj_conv_table_size (abfd
))
3748 (*_bfd_error_handler
)
3749 ("%s: warning: illegal symbol index %ld in relocs",
3750 bfd_get_filename (abfd
), dst
.r_symndx
);
3751 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
3756 cache_ptr
->sym_ptr_ptr
= (symbols
3757 + obj_convert (abfd
)[dst
.r_symndx
]);
3758 ptr
= *(cache_ptr
->sym_ptr_ptr
);
3763 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
3767 /* The symbols definitions that we have read in have been
3768 relocated as if their sections started at 0. But the offsets
3769 refering to the symbols in the raw data have not been
3770 modified, so we have to have a negative addend to compensate.
3772 Note that symbols which used to be common must be left alone */
3774 /* Calculate any reloc addend by looking at the symbol */
3775 CALC_ADDEND (abfd
, ptr
, dst
, cache_ptr
);
3777 cache_ptr
->address
-= asect
->vma
;
3778 /* !! cache_ptr->section = (asection *) NULL;*/
3780 /* Fill in the cache_ptr->howto field from dst.r_type */
3781 RTYPE2HOWTO (cache_ptr
, &dst
);
3782 #endif /* RELOC_PROCESSING */
3784 if (cache_ptr
->howto
== NULL
)
3786 (*_bfd_error_handler
)
3787 ("%s: illegal relocation type %d at address 0x%lx",
3788 bfd_get_filename (abfd
), dst
.r_type
, (long) dst
.r_vaddr
);
3789 bfd_set_error (bfd_error_bad_value
);
3794 asect
->relocation
= reloc_cache
;
3798 #ifndef coff_rtype_to_howto
3801 /* Get the howto structure for a reloc. This is only used if the file
3802 including this one defines coff_relocate_section to be
3803 _bfd_coff_generic_relocate_section, so it is OK if it does not
3804 always work. It is the responsibility of the including file to
3805 make sure it is reasonable if it is needed. */
3807 static reloc_howto_type
*coff_rtype_to_howto
3808 PARAMS ((bfd
*, asection
*, struct internal_reloc
*,
3809 struct coff_link_hash_entry
*, struct internal_syment
*,
3813 static reloc_howto_type
*
3814 coff_rtype_to_howto (abfd
, sec
, rel
, h
, sym
, addendp
)
3817 struct internal_reloc
*rel
;
3818 struct coff_link_hash_entry
*h
;
3819 struct internal_syment
*sym
;
3824 RTYPE2HOWTO (&genrel
, rel
);
3825 return genrel
.howto
;
3828 #else /* ! defined (RTYPE2HOWTO) */
3830 #define coff_rtype_to_howto NULL
3832 #endif /* ! defined (RTYPE2HOWTO) */
3833 #endif /* ! defined (coff_rtype_to_howto) */
3835 /* This is stupid. This function should be a boolean predicate. */
3837 coff_canonicalize_reloc (abfd
, section
, relptr
, symbols
)
3843 arelent
*tblptr
= section
->relocation
;
3844 unsigned int count
= 0;
3847 if (section
->flags
& SEC_CONSTRUCTOR
)
3849 /* this section has relocs made up by us, they are not in the
3850 file, so take them out of their chain and place them into
3851 the data area provided */
3852 arelent_chain
*chain
= section
->constructor_chain
;
3853 for (count
= 0; count
< section
->reloc_count
; count
++)
3855 *relptr
++ = &chain
->relent
;
3856 chain
= chain
->next
;
3862 if (! coff_slurp_reloc_table (abfd
, section
, symbols
))
3865 tblptr
= section
->relocation
;
3867 for (; count
++ < section
->reloc_count
;)
3868 *relptr
++ = tblptr
++;
3873 return section
->reloc_count
;
3878 coff_sym_filepos (abfd
)
3881 return obj_sym_filepos (abfd
);
3885 #ifndef coff_reloc16_estimate
3886 #define coff_reloc16_estimate dummy_reloc16_estimate
3888 static int dummy_reloc16_estimate
3889 PARAMS ((bfd
*, asection
*, arelent
*, unsigned int,
3890 struct bfd_link_info
*));
3893 dummy_reloc16_estimate (abfd
, input_section
, reloc
, shrink
, link_info
)
3895 asection
*input_section
;
3897 unsigned int shrink
;
3898 struct bfd_link_info
*link_info
;
3905 #ifndef coff_reloc16_extra_cases
3907 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
3909 /* This works even if abort is not declared in any header file. */
3911 static void dummy_reloc16_extra_cases
3912 PARAMS ((bfd
*, struct bfd_link_info
*, struct bfd_link_order
*, arelent
*,
3913 bfd_byte
*, unsigned int *, unsigned int *));
3916 dummy_reloc16_extra_cases (abfd
, link_info
, link_order
, reloc
, data
, src_ptr
,
3919 struct bfd_link_info
*link_info
;
3920 struct bfd_link_order
*link_order
;
3923 unsigned int *src_ptr
;
3924 unsigned int *dst_ptr
;
3930 /* If coff_relocate_section is defined, we can use the optimized COFF
3931 backend linker. Otherwise we must continue to use the old linker. */
3932 #ifdef coff_relocate_section
3933 #ifndef coff_bfd_link_hash_table_create
3934 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
3936 #ifndef coff_bfd_link_add_symbols
3937 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
3939 #ifndef coff_bfd_final_link
3940 #define coff_bfd_final_link _bfd_coff_final_link
3942 #else /* ! defined (coff_relocate_section) */
3943 #define coff_relocate_section NULL
3944 #ifndef coff_bfd_link_hash_table_create
3945 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
3947 #ifndef coff_bfd_link_add_symbols
3948 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
3950 #define coff_bfd_final_link _bfd_generic_final_link
3951 #endif /* ! defined (coff_relocate_section) */
3953 #define coff_bfd_link_split_section _bfd_generic_link_split_section
3955 #ifndef coff_start_final_link
3956 #define coff_start_final_link NULL
3959 #ifndef coff_adjust_symndx
3960 #define coff_adjust_symndx NULL
3963 #ifndef coff_link_add_one_symbol
3964 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
3967 static CONST bfd_coff_backend_data bfd_coff_std_swap_table
=
3969 coff_swap_aux_in
, coff_swap_sym_in
, coff_swap_lineno_in
,
3970 coff_swap_aux_out
, coff_swap_sym_out
,
3971 coff_swap_lineno_out
, coff_swap_reloc_out
,
3972 coff_swap_filehdr_out
, coff_swap_aouthdr_out
,
3973 coff_swap_scnhdr_out
,
3974 FILHSZ
, AOUTSZ
, SCNHSZ
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
,
3975 #ifdef COFF_LONG_FILENAMES
3980 #ifdef COFF_LONG_SECTION_NAMES
3985 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
3986 coff_swap_filehdr_in
, coff_swap_aouthdr_in
, coff_swap_scnhdr_in
,
3987 coff_swap_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
3988 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
3989 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
3990 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
3991 coff_sym_is_global
, coff_compute_section_file_positions
,
3992 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
3993 coff_adjust_symndx
, coff_link_add_one_symbol
3996 #ifndef coff_close_and_cleanup
3997 #define coff_close_and_cleanup _bfd_generic_close_and_cleanup
4000 #ifndef coff_bfd_free_cached_info
4001 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
4004 #ifndef coff_get_section_contents
4005 #define coff_get_section_contents _bfd_generic_get_section_contents
4008 #ifndef coff_bfd_copy_private_symbol_data
4009 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
4012 #ifndef coff_bfd_copy_private_section_data
4013 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
4016 #ifndef coff_bfd_copy_private_bfd_data
4017 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
4020 #ifndef coff_bfd_merge_private_bfd_data
4021 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
4024 #ifndef coff_bfd_set_private_flags
4025 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
4028 #ifndef coff_bfd_print_private_bfd_data
4029 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
4032 #ifndef coff_bfd_is_local_label_name
4033 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
4036 #ifndef coff_read_minisymbols
4037 #define coff_read_minisymbols _bfd_generic_read_minisymbols
4040 #ifndef coff_minisymbol_to_symbol
4041 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
4044 /* The reloc lookup routine must be supplied by each individual COFF
4046 #ifndef coff_bfd_reloc_type_lookup
4047 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
4050 #ifndef coff_bfd_get_relocated_section_contents
4051 #define coff_bfd_get_relocated_section_contents \
4052 bfd_generic_get_relocated_section_contents
4055 #ifndef coff_bfd_relax_section
4056 #define coff_bfd_relax_section bfd_generic_relax_section