1 /* Support for the generic parts of most COFF variants, for BFD.
2 Copyright 1990, 91, 92, 93, 94, 1995 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"
313 /* void warning(); */
316 * Return a word with STYP_* (scnhdr.s_flags) flags set to represent the
317 * incoming SEC_* flags. The inverse of this function is styp_to_sec_flags().
318 * NOTE: If you add to/change this routine, you should mirror the changes
319 * in styp_to_sec_flags().
322 sec_to_styp_flags (sec_name
, sec_flags
)
323 CONST
char *sec_name
;
328 if (!strcmp (sec_name
, _TEXT
))
330 styp_flags
= STYP_TEXT
;
332 else if (!strcmp (sec_name
, _DATA
))
334 styp_flags
= STYP_DATA
;
336 else if (!strcmp (sec_name
, _BSS
))
338 styp_flags
= STYP_BSS
;
341 else if (!strcmp (sec_name
, _COMMENT
))
343 styp_flags
= STYP_INFO
;
344 #endif /* _COMMENT */
347 else if (!strcmp (sec_name
, _LIB
))
349 styp_flags
= STYP_LIB
;
353 else if (!strcmp (sec_name
, _LIT
))
355 styp_flags
= STYP_LIT
;
358 else if (!strcmp (sec_name
, ".debug"))
361 styp_flags
= STYP_DEBUG
;
363 styp_flags
= STYP_INFO
;
366 else if (!strncmp (sec_name
, ".stab", 5))
368 styp_flags
= STYP_INFO
;
371 else if (!strcmp (sec_name
, ".edata"))
373 styp_flags
= STYP_DATA
;
377 else if (!strcmp (sec_name
, _PAD
))
379 styp_flags
= STYP_PAD
;
381 else if (!strcmp (sec_name
, _LOADER
))
383 styp_flags
= STYP_LOADER
;
386 /* Try and figure out what it should be */
387 else if (sec_flags
& SEC_CODE
)
389 styp_flags
= STYP_TEXT
;
391 else if (sec_flags
& SEC_DATA
)
393 styp_flags
= STYP_DATA
;
395 else if (sec_flags
& SEC_READONLY
)
397 #ifdef STYP_LIT /* 29k readonly text/data section */
398 styp_flags
= STYP_LIT
;
400 styp_flags
= STYP_TEXT
;
401 #endif /* STYP_LIT */
403 else if (sec_flags
& SEC_LOAD
)
405 styp_flags
= STYP_TEXT
;
407 else if (sec_flags
& SEC_ALLOC
)
409 styp_flags
= STYP_BSS
;
413 if ((sec_flags
& (SEC_NEVER_LOAD
| SEC_COFF_SHARED_LIBRARY
)) != 0)
414 styp_flags
|= STYP_NOLOAD
;
420 * Return a word with SEC_* flags set to represent the incoming
421 * STYP_* flags (from scnhdr.s_flags). The inverse of this
422 * function is sec_to_styp_flags().
423 * NOTE: If you add to/change this routine, you should mirror the changes
424 * in sec_to_styp_flags().
427 styp_to_sec_flags (abfd
, hdr
, name
)
432 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
433 long styp_flags
= internal_s
->s_flags
;
434 flagword sec_flags
= 0;
437 if (styp_flags
& STYP_NOLOAD
)
439 sec_flags
|= SEC_NEVER_LOAD
;
441 #endif /* STYP_NOLOAD */
443 /* For 386 COFF, at least, an unloadable text or data section is
444 actually a shared library section. */
445 if (styp_flags
& STYP_TEXT
)
447 if (sec_flags
& SEC_NEVER_LOAD
)
448 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
450 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
452 else if (styp_flags
& STYP_DATA
)
454 if (sec_flags
& SEC_NEVER_LOAD
)
455 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
457 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
459 else if (styp_flags
& STYP_BSS
)
461 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
462 if (sec_flags
& SEC_NEVER_LOAD
)
463 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
466 sec_flags
|= SEC_ALLOC
;
468 else if (styp_flags
& STYP_INFO
)
470 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
471 defined. coff_compute_section_file_positions uses
472 COFF_PAGE_SIZE to ensure that the low order bits of the
473 section VMA and the file offset match. If we don't know
474 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
475 and demand page loading of the file will fail. */
476 #ifdef COFF_PAGE_SIZE
477 sec_flags
|= SEC_DEBUGGING
;
480 else if (styp_flags
& STYP_PAD
)
484 else if (strcmp (name
, _TEXT
) == 0)
486 if (sec_flags
& SEC_NEVER_LOAD
)
487 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
489 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
491 else if (strcmp (name
, _DATA
) == 0)
493 if (sec_flags
& SEC_NEVER_LOAD
)
494 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
496 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
498 else if (strcmp (name
, _BSS
) == 0)
500 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
501 if (sec_flags
& SEC_NEVER_LOAD
)
502 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
505 sec_flags
|= SEC_ALLOC
;
507 else if (strcmp (name
, ".debug") == 0
509 || strcmp (name
, _COMMENT
) == 0
511 || strncmp (name
, ".stab", 5) == 0)
513 #ifdef COFF_PAGE_SIZE
514 sec_flags
|= SEC_DEBUGGING
;
518 else if (strcmp (name
, _LIB
) == 0)
522 else if (strcmp (name
, _LIT
) == 0)
524 sec_flags
= SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
;
529 sec_flags
|= SEC_ALLOC
| SEC_LOAD
;
532 #ifdef STYP_LIT /* A29k readonly text/data section type */
533 if ((styp_flags
& STYP_LIT
) == STYP_LIT
)
535 sec_flags
= (SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
);
537 #endif /* STYP_LIT */
538 #ifdef STYP_OTHER_LOAD /* Other loaded sections */
539 if (styp_flags
& STYP_OTHER_LOAD
)
541 sec_flags
= (SEC_LOAD
| SEC_ALLOC
);
543 #endif /* STYP_SDATA */
548 #define get_index(symbol) ((symbol)->udata.i)
552 bfd_coff_backend_data
556 Special entry points for gdb to swap in coff symbol table parts:
559 . void (*_bfd_coff_swap_aux_in) PARAMS ((
568 . void (*_bfd_coff_swap_sym_in) PARAMS ((
573 . void (*_bfd_coff_swap_lineno_in) PARAMS ((
579 Special entry points for gas to swap out coff parts:
581 . unsigned int (*_bfd_coff_swap_aux_out) PARAMS ((
590 . unsigned int (*_bfd_coff_swap_sym_out) PARAMS ((
595 . unsigned int (*_bfd_coff_swap_lineno_out) PARAMS ((
600 . unsigned int (*_bfd_coff_swap_reloc_out) PARAMS ((
605 . unsigned int (*_bfd_coff_swap_filehdr_out) PARAMS ((
610 . unsigned int (*_bfd_coff_swap_aouthdr_out) PARAMS ((
615 . unsigned int (*_bfd_coff_swap_scnhdr_out) PARAMS ((
621 Special entry points for generic COFF routines to call target
622 dependent COFF routines:
624 . unsigned int _bfd_filhsz;
625 . unsigned int _bfd_aoutsz;
626 . unsigned int _bfd_scnhsz;
627 . unsigned int _bfd_symesz;
628 . unsigned int _bfd_auxesz;
629 . unsigned int _bfd_relsz;
630 . unsigned int _bfd_linesz;
631 . boolean _bfd_coff_long_filenames;
632 . void (*_bfd_coff_swap_filehdr_in) PARAMS ((
636 . void (*_bfd_coff_swap_aouthdr_in) PARAMS ((
640 . void (*_bfd_coff_swap_scnhdr_in) PARAMS ((
644 . void (*_bfd_coff_swap_reloc_in) PARAMS ((
648 . boolean (*_bfd_coff_bad_format_hook) PARAMS ((
650 . PTR internal_filehdr));
651 . boolean (*_bfd_coff_set_arch_mach_hook) PARAMS ((
653 . PTR internal_filehdr));
654 . PTR (*_bfd_coff_mkobject_hook) PARAMS ((
656 . PTR internal_filehdr,
657 . PTR internal_aouthdr));
658 . flagword (*_bfd_styp_to_sec_flags_hook) PARAMS ((
660 . PTR internal_scnhdr,
661 . const char *name));
662 . void (*_bfd_set_alignment_hook) PARAMS ((
665 . PTR internal_scnhdr));
666 . boolean (*_bfd_coff_slurp_symbol_table) PARAMS ((
668 . boolean (*_bfd_coff_symname_in_debug) PARAMS ((
670 . struct internal_syment *sym));
671 . boolean (*_bfd_coff_pointerize_aux_hook) PARAMS ((
673 . combined_entry_type *table_base,
674 . combined_entry_type *symbol,
675 . unsigned int indaux,
676 . combined_entry_type *aux));
677 . boolean (*_bfd_coff_print_aux) PARAMS ((
680 . combined_entry_type *table_base,
681 . combined_entry_type *symbol,
682 . combined_entry_type *aux,
683 . unsigned int indaux));
684 . void (*_bfd_coff_reloc16_extra_cases) PARAMS ((
686 . struct bfd_link_info *link_info,
687 . struct bfd_link_order *link_order,
690 . unsigned int *src_ptr,
691 . unsigned int *dst_ptr));
692 . int (*_bfd_coff_reloc16_estimate) PARAMS ((
694 . asection *input_section,
696 . unsigned int shrink,
697 . struct bfd_link_info *link_info));
698 . boolean (*_bfd_coff_sym_is_global) PARAMS ((
700 . struct internal_syment *));
701 . void (*_bfd_coff_compute_section_file_positions) PARAMS ((
703 . boolean (*_bfd_coff_start_final_link) PARAMS ((
705 . struct bfd_link_info *info));
706 . boolean (*_bfd_coff_relocate_section) PARAMS ((
708 . struct bfd_link_info *info,
710 . asection *input_section,
711 . bfd_byte *contents,
712 . struct internal_reloc *relocs,
713 . struct internal_syment *syms,
714 . asection **sections));
715 . reloc_howto_type *(*_bfd_coff_rtype_to_howto) PARAMS ((
718 . struct internal_reloc *rel,
719 . struct coff_link_hash_entry *h,
720 . struct internal_syment *sym,
721 . bfd_vma *addendp));
722 . boolean (*_bfd_coff_adjust_symndx) PARAMS ((
724 . struct bfd_link_info *info,
727 . struct internal_reloc *reloc,
728 . boolean *adjustedp));
730 .} bfd_coff_backend_data;
732 .#define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
734 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
735 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
737 .#define bfd_coff_swap_sym_in(a,e,i) \
738 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
740 .#define bfd_coff_swap_lineno_in(a,e,i) \
741 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
743 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
744 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
746 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
747 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
749 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
750 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
752 .#define bfd_coff_swap_sym_out(abfd, i,o) \
753 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
755 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
756 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
758 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
759 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
761 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
762 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
764 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
765 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
766 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
767 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
768 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
769 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
770 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
771 .#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames)
772 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
773 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
775 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
776 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
778 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
779 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
781 .#define bfd_coff_swap_reloc_in(abfd, i, o) \
782 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
784 .#define bfd_coff_bad_format_hook(abfd, filehdr) \
785 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
787 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
788 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
789 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
790 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr))
792 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name)\
793 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook) (abfd, scnhdr, name))
795 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
796 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
798 .#define bfd_coff_slurp_symbol_table(abfd)\
799 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
801 .#define bfd_coff_symname_in_debug(abfd, sym)\
802 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
804 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
805 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
806 . (abfd, file, base, symbol, aux, indaux))
808 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\
809 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
810 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
812 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
813 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
814 . (abfd, section, reloc, shrink, link_info))
816 .#define bfd_coff_sym_is_global(abfd, sym)\
817 . ((coff_backend_info (abfd)->_bfd_coff_sym_is_global)\
820 .#define bfd_coff_compute_section_file_positions(abfd)\
821 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
824 .#define bfd_coff_start_final_link(obfd, info)\
825 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
827 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
828 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
829 . (obfd, info, ibfd, o, con, rel, isyms, secs))
830 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
831 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
832 . (abfd, sec, rel, h, sym, addendp))
833 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
834 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
835 . (obfd, info, ibfd, sec, rel, adjustedp))
839 /* See whether the magic number matches. */
842 coff_bad_format_hook (abfd
, filehdr
)
846 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
848 if (BADMAG (*internal_f
))
851 /* if the optional header is NULL or not the correct size then
852 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
853 and Intel 960 readwrite headers (I960WRMAGIC) is that the
854 optional header is of a different size.
856 But the mips keeps extra stuff in it's opthdr, so dont check
860 #if defined(M88) || defined(I960)
861 if (internal_f
->f_opthdr
!= 0 && AOUTSZ
!= internal_f
->f_opthdr
)
869 initialize a section structure with information peculiar to this
870 particular implementation of coff
874 coff_new_section_hook (abfd
, section
)
878 section
->alignment_power
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
881 if (xcoff_data (abfd
)->text_align_power
!= 0
882 && strcmp (bfd_get_section_name (abfd
, section
), ".text") == 0)
883 section
->alignment_power
= xcoff_data (abfd
)->text_align_power
;
884 if (xcoff_data (abfd
)->data_align_power
!= 0
885 && strcmp (bfd_get_section_name (abfd
, section
), ".data") == 0)
886 section
->alignment_power
= xcoff_data (abfd
)->data_align_power
;
889 /* Allocate aux records for section symbols, to store size and
892 @@ Shouldn't use constant multiplier here! */
893 coffsymbol (section
->symbol
)->native
=
894 (combined_entry_type
*) bfd_zalloc (abfd
,
895 sizeof (combined_entry_type
) * 10);
897 /* The .stab section must be aligned to 2**2 at most, because
898 otherwise there may be gaps in the section which gdb will not
899 know how to interpret. Examining the section name is a hack, but
900 that is also how gdb locates the section.
901 We need to handle the .ctors and .dtors sections similarly, to
902 avoid introducing null words in the tables. */
903 if (COFF_DEFAULT_SECTION_ALIGNMENT_POWER
> 2
904 && (strncmp (section
->name
, ".stab", 5) == 0
905 || strcmp (section
->name
, ".ctors") == 0
906 || strcmp (section
->name
, ".dtors") == 0))
907 section
->alignment_power
= 2;
914 /* Set the alignment of a BFD section. */
917 coff_set_alignment_hook (abfd
, section
, scnhdr
)
922 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
925 for (i
= 0; i
< 32; i
++)
926 if ((1 << i
) >= hdr
->s_align
)
928 section
->alignment_power
= i
;
934 /* a couple of macros to help setting the alignment power field */
935 #define ALIGN_SET(field,x,y) \
936 if (((field) & IMAGE_SCN_ALIGN_64BYTES) == x )\
938 section->alignment_power = y;\
941 #define ELIFALIGN_SET(field,x,y) \
942 else if (( (field) & IMAGE_SCN_ALIGN_64BYTES) == x ) \
944 section->alignment_power = y;\
948 coff_set_alignment_hook (abfd
, section
, scnhdr
)
953 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
955 ALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_64BYTES
, 6)
956 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_32BYTES
, 5)
957 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_16BYTES
, 4)
958 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_8BYTES
, 3)
959 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_4BYTES
, 2)
960 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_2BYTES
, 1)
961 ELIFALIGN_SET (hdr
->s_flags
, IMAGE_SCN_ALIGN_1BYTES
, 0)
966 #else /* ! COFF_WITH_PE */
969 /* We grossly abuse this function to handle XCOFF overflow headers.
970 When we see one, we correct the reloc and line number counts in the
971 real header, and remove the section we just created. */
974 coff_set_alignment_hook (abfd
, section
, scnhdr
)
979 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
983 if ((hdr
->s_flags
& STYP_OVRFLO
) == 0)
986 real_sec
= coff_section_from_bfd_index (abfd
, hdr
->s_nreloc
);
987 if (real_sec
== NULL
)
990 real_sec
->reloc_count
= hdr
->s_paddr
;
991 real_sec
->lineno_count
= hdr
->s_vaddr
;
993 for (ps
= &abfd
->sections
; *ps
!= NULL
; ps
= &(*ps
)->next
)
998 --abfd
->section_count
;
1004 #else /* ! RS6000COFF_C */
1006 #define coff_set_alignment_hook \
1007 ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void)
1009 #endif /* ! RS6000COFF_C */
1010 #endif /* ! COFF_WITH_PE */
1013 #ifndef coff_mkobject
1015 coff_mkobject (abfd
)
1018 coff_data_type
*coff
;
1020 abfd
->tdata
.coff_obj_data
= (struct coff_tdata
*) bfd_zalloc (abfd
, sizeof (coff_data_type
));
1021 if (abfd
->tdata
.coff_obj_data
== 0)
1023 coff
= coff_data (abfd
);
1024 coff
->symbols
= (coff_symbol_type
*) NULL
;
1025 coff
->conversion_table
= (unsigned int *) NULL
;
1026 coff
->raw_syments
= (struct coff_ptr_struct
*) NULL
;
1027 coff
->relocbase
= 0;
1028 coff
->local_toc_sym_map
= 0;
1030 /* make_abs_section(abfd);*/
1036 /* Create the COFF backend specific information. */
1037 #ifndef coff_mkobject_hook
1039 coff_mkobject_hook (abfd
, filehdr
, aouthdr
)
1044 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1045 coff_data_type
*coff
;
1047 if (coff_mkobject (abfd
) == false)
1050 coff
= coff_data (abfd
);
1052 coff
->sym_filepos
= internal_f
->f_symptr
;
1054 /* These members communicate important constants about the symbol
1055 table to GDB's symbol-reading code. These `constants'
1056 unfortunately vary among coff implementations... */
1057 coff
->local_n_btmask
= N_BTMASK
;
1058 coff
->local_n_btshft
= N_BTSHFT
;
1059 coff
->local_n_tmask
= N_TMASK
;
1060 coff
->local_n_tshift
= N_TSHIFT
;
1061 coff
->local_symesz
= SYMESZ
;
1062 coff
->local_auxesz
= AUXESZ
;
1063 coff
->local_linesz
= LINESZ
;
1065 obj_raw_syment_count (abfd
) =
1066 obj_conv_table_size (abfd
) =
1067 internal_f
->f_nsyms
;
1070 if ((internal_f
->f_flags
& F_SHROBJ
) != 0)
1071 abfd
->flags
|= DYNAMIC
;
1072 if (aouthdr
!= NULL
&& internal_f
->f_opthdr
>= AOUTSZ
)
1074 struct internal_aouthdr
*internal_a
=
1075 (struct internal_aouthdr
*) aouthdr
;
1076 struct xcoff_tdata
*xcoff
;
1078 xcoff
= xcoff_data (abfd
);
1079 xcoff
->full_aouthdr
= true;
1080 xcoff
->toc
= internal_a
->o_toc
;
1081 if (internal_a
->o_sntoc
== 0)
1082 xcoff
->toc_section
= NULL
;
1084 xcoff
->toc_section
=
1085 coff_section_from_bfd_index (abfd
, internal_a
->o_sntoc
);
1086 if (internal_a
->o_snentry
== 0)
1087 xcoff
->entry_section
= NULL
;
1089 xcoff
->entry_section
=
1090 coff_section_from_bfd_index (abfd
, internal_a
->o_snentry
);
1091 xcoff
->text_align_power
= internal_a
->o_algntext
;
1092 xcoff
->data_align_power
= internal_a
->o_algndata
;
1093 xcoff
->modtype
= internal_a
->o_modtype
;
1094 xcoff
->cputype
= internal_a
->o_cputype
;
1095 xcoff
->maxdata
= internal_a
->o_maxdata
;
1096 xcoff
->maxstack
= internal_a
->o_maxstack
;
1104 /* Determine the machine architecture and type. FIXME: This is target
1105 dependent because the magic numbers are defined in the target
1106 dependent header files. But there is no particular need for this.
1107 If the magic numbers were moved to a separate file, this function
1108 would be target independent and would also be much more successful
1109 at linking together COFF files for different architectures. */
1112 coff_set_arch_mach_hook (abfd
, filehdr
)
1117 enum bfd_architecture arch
;
1118 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1121 switch (internal_f
->f_magic
)
1125 arch
= bfd_arch_powerpc
;
1126 machine
= 0; /* what does this mean? (krk) */
1132 case I386AIXMAGIC
: /* Danbury PS/2 AIX C Compiler */
1133 case LYNXCOFFMAGIC
: /* shadows the m68k Lynx number below, sigh */
1134 arch
= bfd_arch_i386
;
1138 #ifdef A29K_MAGIC_BIG
1139 case A29K_MAGIC_BIG
:
1140 case A29K_MAGIC_LITTLE
:
1141 arch
= bfd_arch_a29k
;
1147 arch
= bfd_arch_arm
;
1154 #ifdef MC68KBCSMAGIC
1157 #ifdef APOLLOM68KMAGIC
1158 case APOLLOM68KMAGIC
:
1160 #ifdef LYNXCOFFMAGIC
1163 arch
= bfd_arch_m68k
;
1171 arch
= bfd_arch_m88k
;
1177 arch
= bfd_arch_z8k
;
1178 switch (internal_f
->f_flags
& F_MACHMASK
)
1181 machine
= bfd_mach_z8001
;
1184 machine
= bfd_mach_z8002
;
1193 arch
= bfd_arch_i860
;
1200 arch
= bfd_arch_i960
;
1201 switch (F_I960TYPE
& internal_f
->f_flags
)
1205 machine
= bfd_mach_i960_core
;
1208 machine
= bfd_mach_i960_kb_sb
;
1211 machine
= bfd_mach_i960_mc
;
1214 machine
= bfd_mach_i960_xa
;
1217 machine
= bfd_mach_i960_ca
;
1220 machine
= bfd_mach_i960_ka_sa
;
1222 /* start-sanitize-i960xl */
1224 machine
= bfd_mach_i960_xl
;
1226 /* end-sanitize-i960xl */
1239 if (xcoff_data (abfd
)->cputype
!= -1)
1240 cputype
= xcoff_data (abfd
)->cputype
& 0xff;
1243 /* We did not get a value from the a.out header. If the
1244 file has not been stripped, we may be able to get the
1245 architecture information from the first symbol, if it
1246 is a .file symbol. */
1247 if (obj_raw_syment_count (abfd
) == 0)
1251 bfd_byte buf
[SYMESZ
];
1252 struct internal_syment sym
;
1254 if (bfd_seek (abfd
, obj_sym_filepos (abfd
), SEEK_SET
) != 0
1255 || bfd_read (buf
, 1, SYMESZ
, abfd
) != SYMESZ
)
1257 coff_swap_sym_in (abfd
, (PTR
) buf
, (PTR
) &sym
);
1258 if (sym
.n_sclass
== C_FILE
)
1259 cputype
= sym
.n_type
& 0xff;
1265 /* FIXME: We don't handle all cases here. */
1271 /* PowerPC Macs use the same magic numbers as RS/6000
1272 (because that's how they were bootstrapped originally),
1273 but they are always PowerPC architecture. */
1274 arch
= bfd_arch_powerpc
;
1277 arch
= bfd_arch_rs6000
;
1279 #endif /* POWERMAC */
1283 arch
= bfd_arch_powerpc
;
1286 case 2: /* 64 bit PowerPC */
1287 arch
= bfd_arch_powerpc
;
1291 arch
= bfd_arch_powerpc
;
1295 arch
= bfd_arch_rs6000
;
1305 arch
= bfd_arch_we32k
;
1312 arch
= bfd_arch_h8300
;
1313 machine
= bfd_mach_h8300
;
1314 /* !! FIXME this probably isn't the right place for this */
1315 abfd
->flags
|= BFD_IS_RELAXABLE
;
1321 arch
= bfd_arch_h8300
;
1322 machine
= bfd_mach_h8300h
;
1323 /* !! FIXME this probably isn't the right place for this */
1324 abfd
->flags
|= BFD_IS_RELAXABLE
;
1328 #ifdef SH_ARCH_MAGIC_BIG
1329 case SH_ARCH_MAGIC_BIG
:
1330 case SH_ARCH_MAGIC_LITTLE
:
1338 arch
= bfd_arch_h8500
;
1345 #ifdef LYNXCOFFMAGIC
1348 arch
= bfd_arch_sparc
;
1353 default: /* Unreadable input file type */
1354 arch
= bfd_arch_obscure
;
1358 bfd_default_set_arch_mach (abfd
, arch
, machine
);
1362 #ifdef SYMNAME_IN_DEBUG
1365 symname_in_debug_hook (abfd
, sym
)
1367 struct internal_syment
*sym
;
1369 return SYMNAME_IN_DEBUG (sym
) ? true : false;
1374 #define symname_in_debug_hook \
1375 (boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false
1381 /* Handle the csect auxent of a C_EXT or C_HIDEXT symbol. */
1383 static boolean coff_pointerize_aux_hook
1384 PARAMS ((bfd
*, combined_entry_type
*, combined_entry_type
*,
1385 unsigned int, combined_entry_type
*));
1389 coff_pointerize_aux_hook (abfd
, table_base
, symbol
, indaux
, aux
)
1391 combined_entry_type
*table_base
;
1392 combined_entry_type
*symbol
;
1393 unsigned int indaux
;
1394 combined_entry_type
*aux
;
1396 int class = symbol
->u
.syment
.n_sclass
;
1398 if ((class == C_EXT
|| class == C_HIDEXT
)
1399 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
1401 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) == XTY_LD
)
1403 aux
->u
.auxent
.x_csect
.x_scnlen
.p
=
1404 table_base
+ aux
->u
.auxent
.x_csect
.x_scnlen
.l
;
1405 aux
->fix_scnlen
= 1;
1408 /* Return true to indicate that the caller should not do any
1409 further work on this auxent. */
1413 /* Return false to indicate that this auxent should be handled by
1421 /* We don't want to pointerize bal entries. */
1423 static boolean coff_pointerize_aux_hook
1424 PARAMS ((bfd
*, combined_entry_type
*, combined_entry_type
*,
1425 unsigned int, combined_entry_type
*));
1429 coff_pointerize_aux_hook (abfd
, table_base
, symbol
, indaux
, aux
)
1431 combined_entry_type
*table_base
;
1432 combined_entry_type
*symbol
;
1433 unsigned int indaux
;
1434 combined_entry_type
*aux
;
1436 /* Return true if we don't want to pointerize this aux entry, which
1437 is the case for the lastfirst aux entry for a C_LEAFPROC symbol. */
1439 && (symbol
->u
.syment
.n_sclass
== C_LEAFPROC
1440 || symbol
->u
.syment
.n_sclass
== C_LEAFSTAT
1441 || symbol
->u
.syment
.n_sclass
== C_LEAFEXT
));
1446 #define coff_pointerize_aux_hook 0
1449 #endif /* ! RS6000COFF_C */
1451 /* Print an aux entry. This returns true if it has printed it. */
1453 static boolean coff_print_aux
1454 PARAMS ((bfd
*, FILE *, combined_entry_type
*, combined_entry_type
*,
1455 combined_entry_type
*, unsigned int));
1458 coff_print_aux (abfd
, file
, table_base
, symbol
, aux
, indaux
)
1461 combined_entry_type
*table_base
;
1462 combined_entry_type
*symbol
;
1463 combined_entry_type
*aux
;
1464 unsigned int indaux
;
1467 if ((symbol
->u
.syment
.n_sclass
== C_EXT
1468 || symbol
->u
.syment
.n_sclass
== C_HIDEXT
)
1469 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
1471 /* This is a csect entry. */
1472 fprintf (file
, "AUX ");
1473 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) != XTY_LD
)
1475 BFD_ASSERT (! aux
->fix_scnlen
);
1476 fprintf (file
, "val %5ld", aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
1480 fprintf (file
, "indx ");
1481 if (! aux
->fix_scnlen
)
1482 fprintf (file
, "%4ld", aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
1484 fprintf (file
, "%4ld",
1485 (long) (aux
->u
.auxent
.x_csect
.x_scnlen
.p
- table_base
));
1488 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
1489 aux
->u
.auxent
.x_csect
.x_parmhash
,
1490 (unsigned int) aux
->u
.auxent
.x_csect
.x_snhash
,
1491 SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
),
1492 SMTYP_ALIGN (aux
->u
.auxent
.x_csect
.x_smtyp
),
1493 (unsigned int) aux
->u
.auxent
.x_csect
.x_smclas
,
1494 aux
->u
.auxent
.x_csect
.x_stab
,
1495 (unsigned int) aux
->u
.auxent
.x_csect
.x_snstab
);
1500 /* Return false to indicate that no special action was taken. */
1508 To write relocations, the back end steps though the
1509 canonical relocation table and create an
1510 @code{internal_reloc}. The symbol index to use is removed from
1511 the @code{offset} field in the symbol table supplied. The
1512 address comes directly from the sum of the section base
1513 address and the relocation offset; the type is dug directly
1514 from the howto field. Then the @code{internal_reloc} is
1515 swapped into the shape of an @code{external_reloc} and written
1521 coff_write_relocs (abfd
, first_undef
)
1526 for (s
= abfd
->sections
; s
!= (asection
*) NULL
; s
= s
->next
)
1529 struct external_reloc dst
;
1531 arelent
**p
= s
->orelocation
;
1532 if (bfd_seek (abfd
, s
->rel_filepos
, SEEK_SET
) != 0)
1534 for (i
= 0; i
< s
->reloc_count
; i
++)
1536 struct internal_reloc n
;
1538 memset ((PTR
) & n
, 0, sizeof (n
));
1540 /* Now we've renumbered the symbols we know where the
1541 undefined symbols live in the table. Check the reloc
1542 entries for symbols who's output bfd isn't the right one.
1543 This is because the symbol was undefined (which means
1544 that all the pointers are never made to point to the same
1545 place). This is a bad thing,'cause the symbols attached
1546 to the output bfd are indexed, so that the relocation
1547 entries know which symbol index they point to. So we
1548 have to look up the output symbol here. */
1550 if (q
->sym_ptr_ptr
[0]->the_bfd
!= abfd
)
1553 const char *sname
= q
->sym_ptr_ptr
[0]->name
;
1554 asymbol
**outsyms
= abfd
->outsymbols
;
1555 for (i
= first_undef
; outsyms
[i
]; i
++)
1557 const char *intable
= outsyms
[i
]->name
;
1558 if (strcmp (intable
, sname
) == 0) {
1559 /* got a hit, so repoint the reloc */
1560 q
->sym_ptr_ptr
= outsyms
+ i
;
1566 n
.r_vaddr
= q
->address
+ s
->vma
;
1569 /* The 29k const/consth reloc pair is a real kludge. The consth
1570 part doesn't have a symbol; it has an offset. So rebuilt
1572 if (q
->howto
->type
== R_IHCONST
)
1573 n
.r_symndx
= q
->addend
;
1578 if (q
->sym_ptr_ptr
== bfd_abs_section_ptr
->symbol_ptr_ptr
)
1579 /* This is a relocation relative to the absolute symbol. */
1583 n
.r_symndx
= get_index ((*(q
->sym_ptr_ptr
)));
1584 /* Take notice if the symbol reloc points to a symbol
1585 we don't have in our symbol table. What should we
1587 if (n
.r_symndx
> obj_conv_table_size (abfd
))
1592 #ifdef SWAP_OUT_RELOC_OFFSET
1593 n
.r_offset
= q
->addend
;
1597 /* Work out reloc type from what is required */
1598 SELECT_RELOC (n
, q
->howto
);
1600 n
.r_type
= q
->howto
->type
;
1602 coff_swap_reloc_out (abfd
, &n
, &dst
);
1603 if (bfd_write ((PTR
) & dst
, 1, RELSZ
, abfd
) != RELSZ
)
1611 /* Set flags and magic number of a coff file from architecture and machine
1612 type. Result is true if we can represent the arch&type, false if not. */
1615 coff_set_flags (abfd
, magicp
, flagsp
)
1618 unsigned short *flagsp
;
1620 switch (bfd_get_arch (abfd
))
1625 switch (bfd_get_mach (abfd
))
1627 case bfd_mach_z8001
:
1630 case bfd_mach_z8002
:
1644 *magicp
= I960ROMAGIC
;
1646 ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC :
1647 I960RWMAGIC); FIXME???
1649 switch (bfd_get_mach (abfd
))
1651 case bfd_mach_i960_core
:
1654 case bfd_mach_i960_kb_sb
:
1657 case bfd_mach_i960_mc
:
1660 case bfd_mach_i960_xa
:
1663 case bfd_mach_i960_ca
:
1666 case bfd_mach_i960_ka_sa
:
1669 /* start-sanitize-i960xl */
1670 case bfd_mach_i960_xl
:
1673 /* end-sanitize-i960xl */
1688 case bfd_arch_powerpc
:
1695 *magicp
= I386MAGIC
;
1697 /* Just overwrite the usual value if we're doing Lynx. */
1698 *magicp
= LYNXCOFFMAGIC
;
1705 *magicp
= I860MAGIC
;
1711 #ifdef APOLLOM68KMAGIC
1712 *magicp
= APOLLO_COFF_VERSION_NUMBER
;
1714 *magicp
= MC68MAGIC
;
1717 /* Just overwrite the usual value if we're doing Lynx. */
1718 *magicp
= LYNXCOFFMAGIC
;
1726 *magicp
= MC88OMAGIC
;
1731 case bfd_arch_h8300
:
1732 switch (bfd_get_mach (abfd
))
1734 case bfd_mach_h8300
:
1735 *magicp
= H8300MAGIC
;
1737 case bfd_mach_h8300h
:
1738 *magicp
= H8300HMAGIC
;
1744 #ifdef SH_ARCH_MAGIC_BIG
1746 if (abfd
->xvec
->byteorder_big_p
)
1747 *magicp
= SH_ARCH_MAGIC_BIG
;
1749 *magicp
= SH_ARCH_MAGIC_LITTLE
;
1755 case bfd_arch_sparc
:
1756 *magicp
= SPARCMAGIC
;
1758 /* Just overwrite the usual value if we're doing Lynx. */
1759 *magicp
= LYNXCOFFMAGIC
;
1766 case bfd_arch_h8500
:
1767 *magicp
= H8500MAGIC
;
1771 #ifdef A29K_MAGIC_BIG
1773 if (abfd
->xvec
->byteorder_big_p
)
1774 *magicp
= A29K_MAGIC_BIG
;
1776 *magicp
= A29K_MAGIC_LITTLE
;
1782 case bfd_arch_we32k
:
1783 *magicp
= WE32KMAGIC
;
1789 case bfd_arch_rs6000
:
1791 case bfd_arch_powerpc
:
1793 *magicp
= U802TOCMAGIC
;
1798 default: /* Unknown architecture */
1799 /* return false; -- fall through to "return false" below, to avoid
1800 "statement never reached" errors on the one below. */
1809 coff_set_arch_mach (abfd
, arch
, machine
)
1811 enum bfd_architecture arch
;
1812 unsigned long machine
;
1815 unsigned short dummy2
;
1817 if (! bfd_default_set_arch_mach (abfd
, arch
, machine
))
1820 if (arch
!= bfd_arch_unknown
&&
1821 coff_set_flags (abfd
, &dummy1
, &dummy2
) != true)
1822 return false; /* We can't represent this type */
1824 return true; /* We're easy ... */
1828 /* Calculate the file position for each section. */
1831 coff_compute_section_file_positions (abfd
)
1835 asection
*previous
= (asection
*) NULL
;
1836 file_ptr sofar
= FILHSZ
;
1844 /* On XCOFF, if we have symbols, set up the .debug section. */
1845 if (bfd_get_symcount (abfd
) > 0)
1848 bfd_size_type i
, symcount
;
1852 symcount
= bfd_get_symcount (abfd
);
1853 for (symp
= abfd
->outsymbols
, i
= 0; i
< symcount
; symp
++, i
++)
1855 coff_symbol_type
*cf
;
1857 cf
= coff_symbol_from (abfd
, *symp
);
1859 && cf
->native
!= NULL
1860 && SYMNAME_IN_DEBUG (&cf
->native
->u
.syment
))
1864 len
= strlen (bfd_asymbol_name (*symp
));
1873 dsec
= bfd_make_section_old_way (abfd
, ".debug");
1876 dsec
->_raw_size
= sz
;
1877 dsec
->flags
|= SEC_HAS_CONTENTS
;
1882 #ifdef COFF_IMAGE_WITH_PE
1884 if (coff_data (abfd
)->link_info
)
1886 page_size
= pe_data (abfd
)->pe_opthdr
.FileAlignment
;
1889 page_size
= PE_DEF_FILE_ALIGNMENT
;
1891 #ifdef COFF_PAGE_SIZE
1892 int page_size
= COFF_PAGE_SIZE
;
1896 if (bfd_get_start_address (abfd
))
1898 /* A start address may have been added to the original file. In this
1899 case it will need an optional header to record it. */
1900 abfd
->flags
|= EXEC_P
;
1903 if (abfd
->flags
& EXEC_P
)
1906 else if (xcoff_data (abfd
)->full_aouthdr
)
1909 sofar
+= SMALL_AOUTSZ
;
1912 sofar
+= abfd
->section_count
* SCNHSZ
;
1915 /* XCOFF handles overflows in the reloc and line number count fields
1916 by allocating a new section header to hold the correct counts. */
1917 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
1918 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
1922 for (current
= abfd
->sections
, count
= 1;
1923 current
!= (asection
*) NULL
;
1924 current
= current
->next
, ++count
)
1926 current
->target_index
= count
;
1928 /* Only deal with sections which have contents */
1929 if (!(current
->flags
& SEC_HAS_CONTENTS
))
1933 /* Do not include the .junk section. This is where we collect section
1934 data which we don't need. This is mainly the MS .debug$ data which
1935 stores codeview debug data. */
1936 if (strcmp (current
->name
, ".junk") == 0)
1942 /* Align the sections in the file to the same boundary on
1943 which they are aligned in virtual memory. I960 doesn't
1944 do this (FIXME) so we can stay in sync with Intel. 960
1945 doesn't yet page from files... */
1947 if ((abfd
->flags
& EXEC_P
) != 0)
1949 /* make sure this section is aligned on the right boundary - by
1950 padding the previous section up if necessary */
1953 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
1954 if (previous
!= (asection
*) NULL
)
1956 previous
->_raw_size
+= sofar
- old_sofar
;
1962 /* In demand paged files the low order bits of the file offset
1963 must match the low order bits of the virtual address. */
1964 #ifdef COFF_PAGE_SIZE
1965 if ((abfd
->flags
& D_PAGED
) != 0
1966 && (current
->flags
& SEC_ALLOC
) != 0)
1967 sofar
+= (current
->vma
- sofar
) % page_size
;
1969 current
->filepos
= sofar
;
1971 #ifdef COFF_IMAGE_WITH_PE
1972 /* With PE we have to pad each section to be a multiple of its page size
1973 too, and remember both sizes. Cooked_size becomes very useful. */
1974 current
->_cooked_size
= current
->_raw_size
;
1975 current
->_raw_size
= (current
->_raw_size
+ page_size
-1) & -page_size
;
1978 sofar
+= current
->_raw_size
;
1981 /* make sure that this section is of the right size too */
1983 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
1984 current
->_raw_size
+= sofar
- old_sofar
;
1988 /* Force .lib sections to start at zero. The vma is then
1989 incremented in coff_set_section_contents. This is right for
1991 if (strcmp (current
->name
, _LIB
) == 0)
1992 bfd_set_section_vma (abfd
, current
, 0);
1998 obj_relocbase (abfd
) = sofar
;
1999 abfd
->output_has_begun
= true;
2003 #ifndef RS6000COFF_C
2005 /* If .file, .text, .data, .bss symbols are missing, add them. */
2006 /* @@ Should we only be adding missing symbols, or overriding the aux
2007 values for existing section symbols? */
2009 coff_add_missing_symbols (abfd
)
2012 unsigned int nsyms
= bfd_get_symcount (abfd
);
2013 asymbol
**sympp
= abfd
->outsymbols
;
2016 int need_text
= 1, need_data
= 1, need_bss
= 1, need_file
= 1;
2018 for (i
= 0; i
< nsyms
; i
++)
2020 coff_symbol_type
*csym
= coff_symbol_from (abfd
, sympp
[i
]);
2024 /* only do this if there is a coff representation of the input
2026 if (csym
->native
&& csym
->native
->u
.syment
.n_sclass
== C_FILE
)
2031 name
= csym
->symbol
.name
;
2034 if (!strcmp (name
, _TEXT
))
2037 else if (!strcmp (name
, ".wtext"))
2040 else if (!strcmp (name
, _DATA
))
2042 else if (!strcmp (name
, _BSS
))
2046 /* Now i == bfd_get_symcount (abfd). */
2047 /* @@ For now, don't deal with .file symbol. */
2050 if (!need_text
&& !need_data
&& !need_bss
&& !need_file
)
2052 nsyms
+= need_text
+ need_data
+ need_bss
+ need_file
;
2053 sympp2
= (asymbol
**) bfd_alloc_by_size_t (abfd
, nsyms
* sizeof (asymbol
*));
2056 memcpy (sympp2
, sympp
, i
* sizeof (asymbol
*));
2059 /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */
2063 sympp2
[i
++] = coff_section_symbol (abfd
, _TEXT
);
2065 sympp2
[i
++] = coff_section_symbol (abfd
, _DATA
);
2067 sympp2
[i
++] = coff_section_symbol (abfd
, _BSS
);
2068 BFD_ASSERT (i
== nsyms
);
2069 bfd_set_symtab (abfd
, sympp2
, nsyms
);
2073 #endif /* ! defined (RS6000COFF_C) */
2080 coff_write_object_contents (abfd
)
2084 boolean hasrelocs
= false;
2085 boolean haslinno
= false;
2087 file_ptr reloc_base
;
2088 file_ptr lineno_base
;
2090 unsigned long reloc_size
= 0;
2091 unsigned long lnno_size
= 0;
2092 asection
*text_sec
= NULL
;
2093 asection
*data_sec
= NULL
;
2094 asection
*bss_sec
= NULL
;
2096 struct internal_filehdr internal_f
;
2097 struct internal_aouthdr internal_a
;
2099 bfd_set_error (bfd_error_system_call
);
2101 /* Make a pass through the symbol table to count line number entries and
2102 put them into the correct asections */
2104 lnno_size
= coff_count_linenumbers (abfd
) * LINESZ
;
2106 if (abfd
->output_has_begun
== false)
2107 coff_compute_section_file_positions (abfd
);
2109 reloc_base
= obj_relocbase (abfd
);
2111 /* Work out the size of the reloc and linno areas */
2113 for (current
= abfd
->sections
; current
!= NULL
; current
=
2115 reloc_size
+= current
->reloc_count
* RELSZ
;
2117 lineno_base
= reloc_base
+ reloc_size
;
2118 sym_base
= lineno_base
+ lnno_size
;
2120 /* Indicate in each section->line_filepos its actual file address */
2121 for (current
= abfd
->sections
; current
!= NULL
; current
=
2124 if (current
->lineno_count
)
2126 current
->line_filepos
= lineno_base
;
2127 current
->moving_line_filepos
= lineno_base
;
2128 lineno_base
+= current
->lineno_count
* LINESZ
;
2132 current
->line_filepos
= 0;
2134 if (current
->reloc_count
)
2136 current
->rel_filepos
= reloc_base
;
2137 reloc_base
+= current
->reloc_count
* RELSZ
;
2141 current
->rel_filepos
= 0;
2145 /* Write section headers to the file. */
2146 internal_f
.f_nscns
= 0;
2148 if ((abfd
->flags
& EXEC_P
) != 0)
2149 scn_base
= FILHSZ
+ AOUTSZ
;
2154 if (xcoff_data (abfd
)->full_aouthdr
)
2157 scn_base
+= SMALL_AOUTSZ
;
2161 if (bfd_seek (abfd
, scn_base
, SEEK_SET
) != 0)
2164 for (current
= abfd
->sections
;
2166 current
= current
->next
)
2168 struct internal_scnhdr section
;
2171 /* Do not include the .junk section. This is where we collect section
2172 data which we don't need. This is mainly the MS .debug$ data which
2173 stores codeview debug data. */
2174 if (strcmp (current
->name
, ".junk") == 0)
2179 /* If we've got a .reloc section, remember. */
2181 #ifdef COFF_IMAGE_WITH_PE
2182 if (strcmp (current
->name
, ".reloc") == 0)
2184 pe_data (abfd
)->has_reloc_section
= 1;
2189 internal_f
.f_nscns
++;
2190 strncpy (&(section
.s_name
[0]), current
->name
, 8);
2192 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
2193 Ian Taylor <ian@cygnus.com>. */
2194 if (strcmp (current
->name
, _LIB
) == 0)
2195 section
.s_vaddr
= 0;
2198 section
.s_vaddr
= current
->lma
;
2199 section
.s_paddr
= current
->lma
;
2200 section
.s_size
= current
->_raw_size
;
2203 section
.s_paddr
= current
->_cooked_size
;
2207 If this section has no size or is unloadable then the scnptr
2210 if (current
->_raw_size
== 0 ||
2211 (current
->flags
& (SEC_LOAD
| SEC_HAS_CONTENTS
)) == 0)
2213 section
.s_scnptr
= 0;
2217 section
.s_scnptr
= current
->filepos
;
2219 section
.s_relptr
= current
->rel_filepos
;
2220 section
.s_lnnoptr
= current
->line_filepos
;
2221 section
.s_nreloc
= current
->reloc_count
;
2222 section
.s_nlnno
= current
->lineno_count
;
2223 if (current
->reloc_count
!= 0)
2225 if (current
->lineno_count
!= 0)
2229 /* Indicate the use of an XCOFF overflow section header. */
2230 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
2232 section
.s_nreloc
= 0xffff;
2233 section
.s_nlnno
= 0xffff;
2237 section
.s_flags
= sec_to_styp_flags (current
->name
, current
->flags
);
2239 if (!strcmp (current
->name
, _TEXT
))
2243 else if (!strcmp (current
->name
, _DATA
))
2247 else if (!strcmp (current
->name
, _BSS
))
2253 section
.s_align
= (current
->alignment_power
2254 ? 1 << current
->alignment_power
2259 #ifdef COFF_IMAGE_WITH_PE
2260 /* suppress output of the sections if they are null. ld includes
2261 the bss and data sections even if there is no size assigned
2262 to them. NT loader doesn't like it if these section headers are
2263 included if the sections themselves are not needed */
2264 if (section
.s_size
== 0)
2265 internal_f
.f_nscns
--;
2270 if (coff_swap_scnhdr_out (abfd
, §ion
, &buff
) == 0
2271 || bfd_write ((PTR
) (&buff
), 1, SCNHSZ
, abfd
) != SCNHSZ
)
2277 /* XCOFF handles overflows in the reloc and line number count fields
2278 by creating a new section header to hold the correct values. */
2279 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
2281 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
2283 struct internal_scnhdr scnhdr
;
2286 internal_f
.f_nscns
++;
2287 strncpy (&(scnhdr
.s_name
[0]), current
->name
, 8);
2288 scnhdr
.s_paddr
= current
->reloc_count
;
2289 scnhdr
.s_vaddr
= current
->lineno_count
;
2291 scnhdr
.s_scnptr
= 0;
2292 scnhdr
.s_relptr
= current
->rel_filepos
;
2293 scnhdr
.s_lnnoptr
= current
->line_filepos
;
2294 scnhdr
.s_nreloc
= current
->target_index
;
2295 scnhdr
.s_nlnno
= current
->target_index
;
2296 scnhdr
.s_flags
= STYP_OVRFLO
;
2297 if (coff_swap_scnhdr_out (abfd
, &scnhdr
, &buff
) == 0
2298 || bfd_write ((PTR
) &buff
, 1, SCNHSZ
, abfd
) != SCNHSZ
)
2304 /* OK, now set up the filehdr... */
2306 /* Don't include the internal abs section in the section count */
2309 We will NOT put a fucking timestamp in the header here. Every time you
2310 put it back, I will come in and take it out again. I'm sorry. This
2311 field does not belong here. We fill it with a 0 so it compares the
2312 same but is not a reasonable time. -- gnu@cygnus.com
2314 internal_f
.f_timdat
= 0;
2316 internal_f
.f_flags
= 0;
2318 if (abfd
->flags
& EXEC_P
)
2319 internal_f
.f_opthdr
= AOUTSZ
;
2322 internal_f
.f_opthdr
= 0;
2324 if (xcoff_data (abfd
)->full_aouthdr
)
2325 internal_f
.f_opthdr
= AOUTSZ
;
2327 internal_f
.f_opthdr
= SMALL_AOUTSZ
;
2332 internal_f
.f_flags
|= F_RELFLG
;
2334 internal_f
.f_flags
|= F_LNNO
;
2335 if (abfd
->flags
& EXEC_P
)
2336 internal_f
.f_flags
|= F_EXEC
;
2338 /* FIXME: this is wrong for PPC_PE! */
2339 if (!abfd
->xvec
->byteorder_big_p
)
2340 internal_f
.f_flags
|= F_AR32WR
;
2342 internal_f
.f_flags
|= F_AR32W
;
2345 FIXME, should do something about the other byte orders and
2350 if ((abfd
->flags
& DYNAMIC
) != 0)
2351 internal_f
.f_flags
|= F_SHROBJ
;
2352 if (bfd_get_section_by_name (abfd
, _LOADER
) != NULL
)
2353 internal_f
.f_flags
|= F_DYNLOAD
;
2356 memset (&internal_a
, 0, sizeof internal_a
);
2358 /* Set up architecture-dependent stuff */
2361 unsigned int magic
= 0;
2362 unsigned short flags
= 0;
2363 coff_set_flags (abfd
, &magic
, &flags
);
2364 internal_f
.f_magic
= magic
;
2365 internal_f
.f_flags
|= flags
;
2366 /* ...and the "opt"hdr... */
2369 #ifdef ULTRA3 /* NYU's machine */
2370 /* FIXME: This is a bogus check. I really want to see if there
2371 * is a .shbss or a .shdata section, if so then set the magic
2372 * number to indicate a shared data executable.
2374 if (internal_f
.f_nscns
>= 7)
2375 internal_a
.magic
= SHMAGIC
; /* Shared magic */
2378 internal_a
.magic
= NMAGIC
; /* Assume separate i/d */
2379 #define __A_MAGIC_SET__
2382 /* FIXME: What are the a.out magic numbers for the i860? */
2383 internal_a
.magic
= 0;
2384 #define __A_MAGIC_SET__
2387 internal_a
.magic
= (magic
== I960ROMAGIC
? NMAGIC
: OMAGIC
);
2388 #define __A_MAGIC_SET__
2391 #define __A_MAGIC_SET__
2392 internal_a
.magic
= PAGEMAGICBCS
;
2396 #define __A_MAGIC_SET__
2397 internal_a
.magic
= APOLLO_COFF_VERSION_NUMBER
;
2400 #if defined(M68) || defined(WE32K) || defined(M68K)
2401 #define __A_MAGIC_SET__
2403 internal_a
.magic
= LYNXCOFFMAGIC
;
2405 #if defined (PAGEMAGICPEXECPAGED)
2406 internal_a
.magic
= PAGEMAGICPEXECPAGED
;
2409 #endif /* M68 || WE32K || M68K */
2412 #define __A_MAGIC_SET__
2413 internal_a
.magic
= ZMAGIC
;
2416 #define __A_MAGIC_SET__
2417 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
2420 #define __A_MAGIC_SET__
2422 internal_a
.magic
= LYNXCOFFMAGIC
;
2424 internal_a
.magic
= ZMAGIC
;
2429 #define __A_MAGIC_SET__
2431 internal_a
.magic
= LYNXCOFFMAGIC
;
2436 #define __A_MAGIC_SET__
2437 internal_a
.magic
= (abfd
->flags
& D_PAGED
) ? RS6K_AOUTHDR_ZMAGIC
:
2438 (abfd
->flags
& WP_TEXT
) ? RS6K_AOUTHDR_NMAGIC
:
2439 RS6K_AOUTHDR_OMAGIC
;
2442 #ifndef __A_MAGIC_SET__
2443 #include "Your aouthdr magic number is not being set!"
2445 #undef __A_MAGIC_SET__
2449 /* FIXME: Does anybody ever set this to another value? */
2450 internal_a
.vstamp
= 0;
2452 /* Now should write relocs, strings, syms */
2453 obj_sym_filepos (abfd
) = sym_base
;
2455 if (bfd_get_symcount (abfd
) != 0)
2458 #ifndef RS6000COFF_C
2459 if (!coff_add_missing_symbols (abfd
))
2462 if (!coff_renumber_symbols (abfd
, &firstundef
))
2464 coff_mangle_symbols (abfd
);
2465 if (! coff_write_symbols (abfd
))
2467 if (! coff_write_linenumbers (abfd
))
2469 if (! coff_write_relocs (abfd
, firstundef
))
2472 #ifdef COFF_IMAGE_WITH_PE
2474 else if ((abfd
->flags
& EXEC_P
) != 0)
2478 /* PowerPC PE appears to require that all executable files be
2479 rounded up to the page size. */
2482 BFD_ALIGN (sym_base
, COFF_PAGE_SIZE
) - 1,
2484 || bfd_write (&b
, 1, 1, abfd
) != 1)
2490 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
2491 backend linker, and obj_raw_syment_count is not valid until after
2492 coff_write_symbols is called. */
2493 if (obj_raw_syment_count (abfd
) != 0)
2495 internal_f
.f_symptr
= sym_base
;
2497 /* AIX appears to require that F_RELFLG not be set if there are
2498 local symbols but no relocations. */
2499 internal_f
.f_flags
&=~ F_RELFLG
;
2504 internal_f
.f_symptr
= 0;
2505 internal_f
.f_flags
|= F_LSYMS
;
2510 internal_a
.tsize
= bfd_get_section_size_before_reloc (text_sec
);
2511 internal_a
.text_start
= internal_a
.tsize
? text_sec
->vma
: 0;
2515 internal_a
.dsize
= bfd_get_section_size_before_reloc (data_sec
);
2516 internal_a
.data_start
= internal_a
.dsize
? data_sec
->vma
: 0;
2520 internal_a
.bsize
= bfd_get_section_size_before_reloc (bss_sec
);
2521 if (internal_a
.bsize
&& bss_sec
->vma
< internal_a
.data_start
)
2522 internal_a
.data_start
= bss_sec
->vma
;
2525 internal_a
.entry
= bfd_get_start_address (abfd
);
2526 internal_f
.f_nsyms
= obj_raw_syment_count (abfd
);
2529 if (xcoff_data (abfd
)->full_aouthdr
)
2532 asection
*loader_sec
;
2534 internal_a
.vstamp
= 1;
2536 if (xcoff_data (abfd
)->entry_section
!= NULL
)
2537 internal_a
.o_snentry
= xcoff_data (abfd
)->entry_section
->target_index
;
2540 internal_a
.o_snentry
= 0;
2541 if (internal_a
.entry
== 0)
2542 internal_a
.entry
= (bfd_vma
) -1;
2545 if (text_sec
!= NULL
)
2547 internal_a
.o_sntext
= text_sec
->target_index
;
2548 internal_a
.o_algntext
= bfd_get_section_alignment (abfd
, text_sec
);
2552 internal_a
.o_sntext
= 0;
2553 internal_a
.o_algntext
= 0;
2555 if (data_sec
!= NULL
)
2557 internal_a
.o_sndata
= data_sec
->target_index
;
2558 internal_a
.o_algndata
= bfd_get_section_alignment (abfd
, data_sec
);
2562 internal_a
.o_sndata
= 0;
2563 internal_a
.o_algndata
= 0;
2565 loader_sec
= bfd_get_section_by_name (abfd
, ".loader");
2566 if (loader_sec
!= NULL
)
2567 internal_a
.o_snloader
= loader_sec
->target_index
;
2569 internal_a
.o_snloader
= 0;
2570 if (bss_sec
!= NULL
)
2571 internal_a
.o_snbss
= bss_sec
->target_index
;
2573 internal_a
.o_snbss
= 0;
2575 toc
= xcoff_data (abfd
)->toc
;
2576 internal_a
.o_toc
= toc
;
2577 if (xcoff_data (abfd
)->toc_section
== NULL
)
2578 internal_a
.o_sntoc
= 0;
2580 internal_a
.o_sntoc
= xcoff_data (abfd
)->toc_section
->target_index
;
2582 internal_a
.o_modtype
= xcoff_data (abfd
)->modtype
;
2583 if (xcoff_data (abfd
)->cputype
!= -1)
2584 internal_a
.o_cputype
= xcoff_data (abfd
)->cputype
;
2587 switch (bfd_get_arch (abfd
))
2589 case bfd_arch_rs6000
:
2590 internal_a
.o_cputype
= 4;
2592 case bfd_arch_powerpc
:
2593 if (bfd_get_mach (abfd
) == 0)
2594 internal_a
.o_cputype
= 3;
2596 internal_a
.o_cputype
= 1;
2602 internal_a
.o_maxstack
= xcoff_data (abfd
)->maxstack
;
2603 internal_a
.o_maxdata
= xcoff_data (abfd
)->maxdata
;
2607 /* now write them */
2608 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
) != 0)
2612 coff_swap_filehdr_out (abfd
, (PTR
) & internal_f
, (PTR
) & buff
);
2613 if (bfd_write ((PTR
) & buff
, 1, FILHSZ
, abfd
) != FILHSZ
)
2616 if (abfd
->flags
& EXEC_P
)
2619 coff_swap_aouthdr_out (abfd
, (PTR
) & internal_a
, (PTR
) & buff
);
2620 if (bfd_write ((PTR
) & buff
, 1, AOUTSZ
, abfd
) != AOUTSZ
)
2629 /* XCOFF seems to always write at least a small a.out header. */
2630 coff_swap_aouthdr_out (abfd
, (PTR
) &internal_a
, (PTR
) &buff
);
2631 if (xcoff_data (abfd
)->full_aouthdr
)
2634 size
= SMALL_AOUTSZ
;
2635 if (bfd_write ((PTR
) &buff
, 1, size
, abfd
) != size
)
2644 coff_set_section_contents (abfd
, section
, location
, offset
, count
)
2649 bfd_size_type count
;
2651 if (abfd
->output_has_begun
== false) /* set by bfd.c handler */
2652 coff_compute_section_file_positions (abfd
);
2655 /* If this is a .lib section, bump the vma address so that it
2656 winds up being the number of .lib sections output. This is
2657 right for SVR3.2. Shared libraries should probably get more
2658 generic support. Ian Taylor <ian@cygnus.com>. */
2659 if (strcmp (section
->name
, _LIB
) == 0)
2663 /* Don't write out bss sections - one way to do this is to
2664 see if the filepos has not been set. */
2665 if (section
->filepos
== 0)
2668 if (bfd_seek (abfd
, (file_ptr
) (section
->filepos
+ offset
), SEEK_SET
) != 0)
2673 return (bfd_write (location
, 1, count
, abfd
) == count
) ? true : false;
2679 coff_close_and_cleanup (abfd
)
2682 if (!bfd_read_p (abfd
))
2683 switch (abfd
->format
)
2686 if (!_bfd_write_archive_contents (abfd
))
2690 if (!coff_write_object_contents (abfd
))
2694 bfd_set_error (bfd_error_invalid_operation
);
2698 /* We depend on bfd_close to free all the memory on the obstack. */
2699 /* FIXME if bfd_release is not using obstacks! */
2706 buy_and_read (abfd
, where
, seek_direction
, size
)
2712 PTR area
= (PTR
) bfd_alloc (abfd
, size
);
2715 if (bfd_seek (abfd
, where
, seek_direction
) != 0
2716 || bfd_read (area
, 1, size
, abfd
) != size
)
2719 } /* buy_and_read() */
2725 Creating the linenumber table is done by reading in the entire
2726 coff linenumber table, and creating another table for internal use.
2728 A coff linenumber table is structured so that each function
2729 is marked as having a line number of 0. Each line within the
2730 function is an offset from the first line in the function. The
2731 base of the line number information for the table is stored in
2732 the symbol associated with the function.
2734 The information is copied from the external to the internal
2735 table, and each symbol which marks a function is marked by
2738 How does this work ?
2743 coff_slurp_line_table (abfd
, asect
)
2747 LINENO
*native_lineno
;
2748 alent
*lineno_cache
;
2750 BFD_ASSERT (asect
->lineno
== (alent
*) NULL
);
2752 native_lineno
= (LINENO
*) buy_and_read (abfd
,
2753 asect
->line_filepos
,
2756 asect
->lineno_count
));
2758 (alent
*) bfd_alloc (abfd
, (size_t) ((asect
->lineno_count
+ 1) * sizeof (alent
)));
2759 if (lineno_cache
== NULL
)
2763 unsigned int counter
= 0;
2764 alent
*cache_ptr
= lineno_cache
;
2765 LINENO
*src
= native_lineno
;
2767 while (counter
< asect
->lineno_count
)
2769 struct internal_lineno dst
;
2770 coff_swap_lineno_in (abfd
, src
, &dst
);
2771 cache_ptr
->line_number
= dst
.l_lnno
;
2773 if (cache_ptr
->line_number
== 0)
2775 coff_symbol_type
*sym
=
2776 (coff_symbol_type
*) (dst
.l_addr
.l_symndx
2777 + obj_raw_syments (abfd
))->u
.syment
._n
._n_n
._n_zeroes
;
2778 cache_ptr
->u
.sym
= (asymbol
*) sym
;
2779 if (sym
->lineno
!= NULL
)
2781 (*_bfd_error_handler
)
2782 ("%s: warning: duplicate line number information for `%s'",
2783 bfd_get_filename (abfd
),
2784 bfd_asymbol_name (&sym
->symbol
));
2786 sym
->lineno
= cache_ptr
;
2790 cache_ptr
->u
.offset
= dst
.l_addr
.l_paddr
2791 - bfd_section_vma (abfd
, asect
);
2792 } /* If no linenumber expect a symbol index */
2798 cache_ptr
->line_number
= 0;
2801 asect
->lineno
= lineno_cache
;
2802 /* FIXME, free native_lineno here, or use alloca or something. */
2807 coff_slurp_symbol_table (abfd
)
2810 combined_entry_type
*native_symbols
;
2811 coff_symbol_type
*cached_area
;
2812 unsigned int *table_ptr
;
2814 unsigned int number_of_symbols
= 0;
2816 if (obj_symbols (abfd
))
2819 /* Read in the symbol table */
2820 if ((native_symbols
= coff_get_normalized_symtab (abfd
)) == NULL
)
2825 /* Allocate enough room for all the symbols in cached form */
2826 cached_area
= ((coff_symbol_type
*)
2828 (obj_raw_syment_count (abfd
)
2829 * sizeof (coff_symbol_type
))));
2831 if (cached_area
== NULL
)
2833 table_ptr
= ((unsigned int *)
2835 (obj_raw_syment_count (abfd
)
2836 * sizeof (unsigned int))));
2838 if (table_ptr
== NULL
)
2842 coff_symbol_type
*dst
= cached_area
;
2843 unsigned int last_native_index
= obj_raw_syment_count (abfd
);
2844 unsigned int this_index
= 0;
2845 while (this_index
< last_native_index
)
2847 combined_entry_type
*src
= native_symbols
+ this_index
;
2848 table_ptr
[this_index
] = number_of_symbols
;
2849 dst
->symbol
.the_bfd
= abfd
;
2851 dst
->symbol
.name
= (char *) (src
->u
.syment
._n
._n_n
._n_offset
);
2852 /* We use the native name field to point to the cached field. */
2853 src
->u
.syment
._n
._n_n
._n_zeroes
= (long) dst
;
2854 dst
->symbol
.section
= coff_section_from_bfd_index (abfd
,
2855 src
->u
.syment
.n_scnum
);
2856 dst
->symbol
.flags
= 0;
2857 dst
->done_lineno
= false;
2859 switch (src
->u
.syment
.n_sclass
)
2864 dst
->symbol
.value
= src
->u
.syment
.n_value
- dst
->symbol
.section
->vma
;
2865 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
2866 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
2868 /* Fall through to next case */
2877 /* PE uses storage class 0x68 to denote a section symbol */
2879 /* PE uses storage class 0x67 for a weak external symbol. */
2882 if ((src
->u
.syment
.n_scnum
) == 0)
2884 if ((src
->u
.syment
.n_value
) == 0)
2886 dst
->symbol
.section
= bfd_und_section_ptr
;
2887 dst
->symbol
.value
= 0;
2891 dst
->symbol
.section
= bfd_com_section_ptr
;
2892 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
2897 /* Base the value as an index from the base of the
2900 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
2901 dst
->symbol
.value
= (src
->u
.syment
.n_value
2902 - dst
->symbol
.section
->vma
);
2904 if (ISFCN ((src
->u
.syment
.n_type
)))
2906 /* A function ext does not go at the end of a
2908 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
2913 /* A C_HIDEXT symbol is not global. */
2914 if (src
->u
.syment
.n_sclass
== C_HIDEXT
)
2915 dst
->symbol
.flags
= BSF_LOCAL
;
2916 /* A symbol with a csect entry should not go at the end. */
2917 if (src
->u
.syment
.n_numaux
> 0)
2918 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
2922 if (src
->u
.syment
.n_sclass
== C_NT_WEAK
)
2923 dst
->symbol
.flags
= BSF_WEAK
;
2928 case C_STAT
: /* static */
2930 case C_LEAFSTAT
: /* static leaf procedure */
2932 case C_LABEL
: /* label */
2933 if (src
->u
.syment
.n_scnum
== -2)
2934 dst
->symbol
.flags
= BSF_DEBUGGING
;
2936 dst
->symbol
.flags
= BSF_LOCAL
;
2938 Base the value as an index from the base of the section, if
2941 if (dst
->symbol
.section
)
2942 dst
->symbol
.value
= (src
->u
.syment
.n_value
) -
2943 dst
->symbol
.section
->vma
;
2945 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
2948 case C_MOS
: /* member of structure */
2949 case C_EOS
: /* end of structure */
2950 #ifdef NOTDEF /* C_AUTOARG has the same value */
2952 case C_GLBLREG
: /* A29k-specific storage class */
2955 case C_REGPARM
: /* register parameter */
2956 case C_REG
: /* register variable */
2958 case C_AUTOARG
: /* 960-specific storage class */
2960 case C_TPDEF
: /* type definition */
2962 case C_AUTO
: /* automatic variable */
2963 case C_FIELD
: /* bit field */
2964 case C_ENTAG
: /* enumeration tag */
2965 case C_MOE
: /* member of enumeration */
2966 case C_MOU
: /* member of union */
2967 case C_UNTAG
: /* union tag */
2968 dst
->symbol
.flags
= BSF_DEBUGGING
;
2969 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
2972 case C_FILE
: /* file name */
2973 case C_STRTAG
: /* structure tag */
2988 dst
->symbol
.flags
= BSF_DEBUGGING
;
2989 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
2993 case C_BINCL
: /* beginning of include file */
2994 case C_EINCL
: /* ending of include file */
2995 /* The value is actually a pointer into the line numbers
2996 of the file. We locate the line number entry, and
2997 set the section to the section which contains it, and
2998 the value to the index in that section. */
3002 dst
->symbol
.flags
= BSF_DEBUGGING
;
3003 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
3004 if (sec
->line_filepos
<= (file_ptr
) src
->u
.syment
.n_value
3005 && ((file_ptr
) (sec
->line_filepos
3006 + sec
->lineno_count
* LINESZ
)
3007 > (file_ptr
) src
->u
.syment
.n_value
))
3010 dst
->symbol
.value
= 0;
3013 dst
->symbol
.section
= sec
;
3014 dst
->symbol
.value
= ((src
->u
.syment
.n_value
3015 - sec
->line_filepos
)
3023 dst
->symbol
.flags
= BSF_DEBUGGING
;
3025 /* The value is actually a symbol index. Save a pointer
3026 to the symbol instead of the index. FIXME: This
3027 should use a union. */
3028 src
->u
.syment
.n_value
=
3029 (long) (native_symbols
+ src
->u
.syment
.n_value
);
3030 dst
->symbol
.value
= src
->u
.syment
.n_value
;
3035 case C_BLOCK
: /* ".bb" or ".eb" */
3036 case C_FCN
: /* ".bf" or ".ef" */
3037 case C_EFCN
: /* physical end of function */
3038 dst
->symbol
.flags
= BSF_LOCAL
;
3040 Base the value as an index from the base of the section
3042 dst
->symbol
.value
= (src
->u
.syment
.n_value
) - dst
->symbol
.section
->vma
;
3046 case C_EXTDEF
: /* external definition */
3047 case C_ULABEL
: /* undefined label */
3048 case C_USTATIC
: /* undefined static */
3049 #ifndef COFF_WITH_PE
3050 /* C_LINE in regular coff is 0x68. NT has taken over this storage
3051 class to represent a section symbol */
3052 case C_LINE
: /* line # reformatted as symbol table entry */
3053 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
3054 case C_ALIAS
: /* duplicate tag */
3056 case C_HIDDEN
: /* ext symbol in dmert public lib */
3058 (*_bfd_error_handler
)
3059 ("%s: Unrecognized storage class %d for %s symbol `%s'",
3060 bfd_get_filename (abfd
), src
->u
.syment
.n_sclass
,
3061 dst
->symbol
.section
->name
, dst
->symbol
.name
);
3062 dst
->symbol
.flags
= BSF_DEBUGGING
;
3063 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
3067 /* BFD_ASSERT(dst->symbol.flags != 0);*/
3071 dst
->symbol
.udata
.i
= 0;
3072 dst
->lineno
= (alent
*) NULL
;
3073 this_index
+= (src
->u
.syment
.n_numaux
) + 1;
3075 number_of_symbols
++;
3076 } /* walk the native symtab */
3077 } /* bfdize the native symtab */
3079 obj_symbols (abfd
) = cached_area
;
3080 obj_raw_syments (abfd
) = native_symbols
;
3082 bfd_get_symcount (abfd
) = number_of_symbols
;
3083 obj_convert (abfd
) = table_ptr
;
3084 /* Slurp the line tables for each section too */
3090 coff_slurp_line_table (abfd
, p
);
3095 } /* coff_slurp_symbol_table() */
3097 /* Check whether a symbol is globally visible. This is used by the
3098 COFF backend linker code in cofflink.c, since a couple of targets
3099 have globally visible symbols which are not class C_EXT. This
3100 function need not handle the case of n_class == C_EXT. */
3102 #undef OTHER_GLOBAL_CLASS
3105 #define OTHER_GLOBAL_CLASS C_LEAFEXT
3109 #define OTHER_GLOBAL_CLASS C_SECTION
3112 #ifdef OTHER_GLOBAL_CLASS
3115 coff_sym_is_global (abfd
, syment
)
3117 struct internal_syment
*syment
;
3119 if (syment
->n_sclass
== OTHER_GLOBAL_CLASS
)
3124 #undef OTHER_GLOBAL_CLASS
3126 #else /* ! defined (OTHER_GLOBAL_CLASS) */
3128 /* sym_is_global should not be defined if it has nothing to do. */
3130 #define coff_sym_is_global 0
3132 #endif /* ! defined (OTHER_GLOBAL_CLASS) */
3138 Coff relocations are easily transformed into the internal BFD form
3141 Reading a coff relocation table is done in the following stages:
3143 o Read the entire coff relocation table into memory.
3145 o Process each relocation in turn; first swap it from the
3146 external to the internal form.
3148 o Turn the symbol referenced in the relocation's symbol index
3149 into a pointer into the canonical symbol table.
3150 This table is the same as the one returned by a call to
3151 @code{bfd_canonicalize_symtab}. The back end will call that
3152 routine and save the result if a canonicalization hasn't been done.
3154 o The reloc index is turned into a pointer to a howto
3155 structure, in a back end specific way. For instance, the 386
3156 and 960 use the @code{r_type} to directly produce an index
3157 into a howto table vector; the 88k subtracts a number from the
3158 @code{r_type} field and creates an addend field.
3164 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
3166 coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \
3167 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
3168 coffsym = (obj_symbols (abfd) \
3169 + (cache_ptr->sym_ptr_ptr - symbols)); \
3171 coffsym = coff_symbol_from (abfd, ptr); \
3172 if (coffsym != (coff_symbol_type *) NULL \
3173 && coffsym->native->u.syment.n_scnum == 0) \
3174 cache_ptr->addend = 0; \
3175 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
3176 && ptr->section != (asection *) NULL) \
3177 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
3179 cache_ptr->addend = 0; \
3184 coff_slurp_reloc_table (abfd
, asect
, symbols
)
3189 RELOC
*native_relocs
;
3190 arelent
*reloc_cache
;
3195 if (asect
->relocation
)
3197 if (asect
->reloc_count
== 0)
3199 if (asect
->flags
& SEC_CONSTRUCTOR
)
3201 if (!coff_slurp_symbol_table (abfd
))
3204 (RELOC
*) buy_and_read (abfd
,
3208 asect
->reloc_count
));
3209 reloc_cache
= (arelent
*)
3210 bfd_alloc (abfd
, (size_t) (asect
->reloc_count
* sizeof (arelent
)));
3212 if (reloc_cache
== NULL
)
3216 for (idx
= 0; idx
< asect
->reloc_count
; idx
++)
3218 #ifdef RELOC_PROCESSING
3219 struct internal_reloc dst
;
3220 struct external_reloc
*src
;
3222 cache_ptr
= reloc_cache
+ idx
;
3223 src
= native_relocs
+ idx
;
3224 coff_swap_reloc_in (abfd
, src
, &dst
);
3226 RELOC_PROCESSING (cache_ptr
, &dst
, symbols
, abfd
, asect
);
3228 struct internal_reloc dst
;
3230 struct external_reloc
*src
;
3232 cache_ptr
= reloc_cache
+ idx
;
3233 src
= native_relocs
+ idx
;
3235 coff_swap_reloc_in (abfd
, src
, &dst
);
3238 cache_ptr
->address
= dst
.r_vaddr
;
3240 if (dst
.r_symndx
!= -1)
3242 /* @@ Should never be greater than count of symbols! */
3243 if (dst
.r_symndx
>= obj_conv_table_size (abfd
))
3245 cache_ptr
->sym_ptr_ptr
= symbols
+ obj_convert (abfd
)[dst
.r_symndx
];
3246 ptr
= *(cache_ptr
->sym_ptr_ptr
);
3250 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
3254 /* The symbols definitions that we have read in have been
3255 relocated as if their sections started at 0. But the offsets
3256 refering to the symbols in the raw data have not been
3257 modified, so we have to have a negative addend to compensate.
3259 Note that symbols which used to be common must be left alone */
3261 /* Calculate any reloc addend by looking at the symbol */
3262 CALC_ADDEND (abfd
, ptr
, dst
, cache_ptr
);
3264 cache_ptr
->address
-= asect
->vma
;
3265 /* !! cache_ptr->section = (asection *) NULL;*/
3267 /* Fill in the cache_ptr->howto field from dst.r_type */
3268 RTYPE2HOWTO (cache_ptr
, &dst
);
3273 asect
->relocation
= reloc_cache
;
3277 #ifndef coff_rtype_to_howto
3280 /* Get the howto structure for a reloc. This is only used if the file
3281 including this one defines coff_relocate_section to be
3282 _bfd_coff_generic_relocate_section, so it is OK if it does not
3283 always work. It is the responsibility of the including file to
3284 make sure it is reasonable if it is needed. */
3286 static reloc_howto_type
*coff_rtype_to_howto
3287 PARAMS ((bfd
*, asection
*, struct internal_reloc
*,
3288 struct coff_link_hash_entry
*, struct internal_syment
*,
3292 static reloc_howto_type
*
3293 coff_rtype_to_howto (abfd
, sec
, rel
, h
, sym
, addendp
)
3296 struct internal_reloc
*rel
;
3297 struct coff_link_hash_entry
*h
;
3298 struct internal_syment
*sym
;
3303 RTYPE2HOWTO (&genrel
, rel
);
3304 return genrel
.howto
;
3307 #else /* ! defined (RTYPE2HOWTO) */
3309 #define coff_rtype_to_howto NULL
3311 #endif /* ! defined (RTYPE2HOWTO) */
3312 #endif /* ! defined (coff_rtype_to_howto) */
3314 /* This is stupid. This function should be a boolean predicate. */
3316 coff_canonicalize_reloc (abfd
, section
, relptr
, symbols
)
3322 arelent
*tblptr
= section
->relocation
;
3323 unsigned int count
= 0;
3326 if (section
->flags
& SEC_CONSTRUCTOR
)
3328 /* this section has relocs made up by us, they are not in the
3329 file, so take them out of their chain and place them into
3330 the data area provided */
3331 arelent_chain
*chain
= section
->constructor_chain
;
3332 for (count
= 0; count
< section
->reloc_count
; count
++)
3334 *relptr
++ = &chain
->relent
;
3335 chain
= chain
->next
;
3341 if (! coff_slurp_reloc_table (abfd
, section
, symbols
))
3344 tblptr
= section
->relocation
;
3346 for (; count
++ < section
->reloc_count
;)
3347 *relptr
++ = tblptr
++;
3352 return section
->reloc_count
;
3357 coff_sym_filepos (abfd
)
3360 return obj_sym_filepos (abfd
);
3364 #ifndef coff_reloc16_estimate
3365 #define coff_reloc16_estimate dummy_reloc16_estimate
3368 dummy_reloc16_estimate (abfd
, input_section
, reloc
, shrink
, link_info
)
3370 asection
*input_section
;
3372 unsigned int shrink
;
3373 struct bfd_link_info
*link_info
;
3380 #ifndef coff_reloc16_extra_cases
3381 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
3382 /* This works even if abort is not declared in any header file. */
3384 dummy_reloc16_extra_cases (abfd
, link_info
, link_order
, reloc
, data
, src_ptr
,
3387 struct bfd_link_info
*link_info
;
3388 struct bfd_link_order
*link_order
;
3391 unsigned int *src_ptr
;
3392 unsigned int *dst_ptr
;
3398 /* If coff_relocate_section is defined, we can use the optimized COFF
3399 backend linker. Otherwise we must continue to use the old linker. */
3400 #ifdef coff_relocate_section
3401 #ifndef coff_bfd_link_hash_table_create
3402 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
3404 #ifndef coff_bfd_link_add_symbols
3405 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
3407 #ifndef coff_bfd_final_link
3408 #define coff_bfd_final_link _bfd_coff_final_link
3410 #else /* ! defined (coff_relocate_section) */
3411 #define coff_relocate_section NULL
3412 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
3413 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
3414 #define coff_bfd_final_link _bfd_generic_final_link
3415 #endif /* ! defined (coff_relocate_section) */
3416 #define coff_bfd_link_split_section _bfd_generic_link_split_section
3418 #ifndef coff_start_final_link
3419 #define coff_start_final_link NULL
3422 #ifndef coff_adjust_symndx
3423 #define coff_adjust_symndx NULL
3426 static CONST bfd_coff_backend_data bfd_coff_std_swap_table
=
3428 coff_swap_aux_in
, coff_swap_sym_in
, coff_swap_lineno_in
,
3429 coff_swap_aux_out
, coff_swap_sym_out
,
3430 coff_swap_lineno_out
, coff_swap_reloc_out
,
3431 coff_swap_filehdr_out
, coff_swap_aouthdr_out
,
3432 coff_swap_scnhdr_out
,
3433 FILHSZ
, AOUTSZ
, SCNHSZ
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
,
3434 #ifdef COFF_LONG_FILENAMES
3439 coff_swap_filehdr_in
, coff_swap_aouthdr_in
, coff_swap_scnhdr_in
,
3440 coff_swap_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
3441 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
3442 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
3443 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
3444 coff_sym_is_global
, coff_compute_section_file_positions
,
3445 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
3449 #define coff_close_and_cleanup _bfd_generic_close_and_cleanup
3450 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
3451 #define coff_get_section_contents _bfd_generic_get_section_contents
3453 #ifndef coff_bfd_copy_private_symbol_data
3454 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
3457 #ifndef coff_bfd_copy_private_section_data
3458 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
3461 #ifndef coff_bfd_copy_private_bfd_data
3462 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
3465 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
3466 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
3468 #ifndef coff_bfd_print_private_bfd_data
3469 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
3472 #ifndef coff_bfd_is_local_label
3473 #define coff_bfd_is_local_label bfd_generic_is_local_label
3475 #ifndef coff_read_minisymbols
3476 #define coff_read_minisymbols _bfd_generic_read_minisymbols
3478 #ifndef coff_minisymbol_to_symbol
3479 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
3482 /* The reloc lookup routine must be supplied by each individual COFF
3484 #ifndef coff_bfd_reloc_type_lookup
3485 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
3488 #ifndef coff_bfd_get_relocated_section_contents
3489 #define coff_bfd_get_relocated_section_contents \
3490 bfd_generic_get_relocated_section_contents
3492 #ifndef coff_bfd_relax_section
3493 #define coff_bfd_relax_section bfd_generic_relax_section