1 /* Support for the generic parts of most COFF variants, for BFD.
2 Copyright (C) 1990-1991 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
22 Most of this hacked by Steve Chamberlain,
30 BFD supports a number of different flavours of coff format.
31 The major difference between formats are the sizes and
32 alignments of fields in structures on disk, and the occasional
35 Coff in all its varieties is implimented 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 @code{coff-m88k.c}. This file @code{#include}s
39 @code{coff-m88k.h} which defines the external structure of the
40 coff format for the 88k, and @code{internalcoff.h} which
41 defines the internal structure. @code{coff-m88k.c} also
42 defines pthe relocations used by the 88k format
43 @xref{Relocations}. Then the major portion of coff code is
44 included (@code{coffcode.h}) which defines the methods used to
45 act upon the types defined in @code{coff-m88k.h} and
46 @code{internalcoff.h}.
49 The Intel i960 processor version of coff is implemented in
50 @code{coff-i960.c}. This file has the same structure as
51 @code{coff-m88k.c}, except that it includes @code{coff-i960.h}
52 rather than @code{coff-m88k.h}.
55 Porting To A New Version of Coff
57 The recommended method is to select from the existing
58 implimentations the version of coff which is most like the one
59 you want to use, for our purposes, we'll say that i386 coff is
60 the one you select, and that your coff flavour is called foo.
61 Copy the @code{i386coff.c} to @code{foocoff.c}, copy
62 @code{../include/i386coff.h} to @code{../include/foocoff.h}
63 and add the lines to @code{targets.c} and @code{Makefile.in}
64 so that your new back end is used. Alter the shapes of the
65 structures in @code{../include/foocoff.h} so that they match
66 what you need. You will probably also have to add
67 @code{#ifdef}s to the code in @code{internalcoff.h} and
68 @code{coffcode.h} if your version of coff is too wild.
70 You can verify that your new BFD backend works quite simply by
71 building @code{objdump} from the @code{binutils} directory,
72 and making sure that its version of what's going on at your
73 host systems idea (assuming it has the pretty standard coff
74 dump utility (usually called @code{att-dump} or just
75 @code{dump})) are the same. Then clean up your code, and send
76 what you've done to Cygnus. Then your stuff will be in the
77 next release, and you won't have to keep integrating it.
80 How The Coff Backend Works
85 Each flavour of coff supported in BFD has its own header file
86 descibing the external layout of the structures. There is also
87 an internal description of the coff layout (in
88 @code{internalcoff.h}) file (@code{}). A major function of the
89 coff backend is swapping the bytes and twiddling the bits to
90 translate the external form of the structures into the normal
91 internal form. This is all performed in the
92 @code{bfd_swap}_@i{thing}_@i{direction} routines. Some
93 elements are different sizes between different versions of
94 coff, it is the duty of the coff version specific include file
95 to override the definitions of various packing routines in
96 @code{coffcode.h}. Eg the size of line number entry in coff is
97 sometimes 16 bits, and sometimes 32 bits. @code{#define}ing
98 @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the
99 correct one. No doubt, some day someone will find a version of
100 coff which has a varying field size not catered for at the
101 moment. To port BFD, that person will have to add more @code{#defines}.
102 Three of the bit twiddling routines are exported to
103 @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in}
104 and @code{coff_swap_linno_in}. @code{GDB} reads the symbol
105 table on its own, but uses BFD to fix things up. More of the
106 bit twiddlers are exported for @code{gas};
107 @code{coff_swap_aux_out}, @code{coff_swap_sym_out},
108 @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out},
109 @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out},
110 @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track
111 of all the symbol table and reloc drudgery itself, thereby
112 saving the internal BFD overhead, but uses BFD to swap things
113 on the way out, making cross ports much safer. This also
114 allows BFD (and thus the linker) to use the same header files
115 as @code{gas}, which makes one avenue to disaster disappear.
120 The simple canonical form for symbols used by BFD is not rich
121 enough to keep all the information available in a coff symbol
122 table. The back end gets around this by keeping the original
123 symbol table around, "behind the scenes".
125 When a symbol table is requested (through a call to
126 @code{bfd_canonicalize_symtab}, a request gets through to
127 @code{get_normalized_symtab}. This reads the symbol table from
128 the coff file and swaps all the structures inside into the
129 internal form. It also fixes up all the pointers in the table
130 (represented in the file by offsets from the first symbol in
131 the table) into physical pointers to elements in the new
132 internal table. This involves some work since the meanings of
133 fields changes depending upon context; a field that is a
134 pointer to another structure in the symbol table at one moment
135 may be the size in bytes of a structure in the next. Another
136 pass is made over the table. All symbols which mark file names
137 (<<C_FILE>> symbols) are modified so that the internal
138 string points to the value in the auxent (the real filename)
139 rather than the normal text associated with the symbol
142 At this time the symbol names are moved around. Coff stores
143 all symbols less than nine characters long physically
144 within the symbol table, longer strings are kept at the end of
145 the file in the string table. This pass moves all strings
146 into memory, and replaces them with pointers to the strings.
149 The symbol table is massaged once again, this time to create
150 the canonical table used by the BFD application. Each symbol
151 is inspected in turn, and a decision made (using the
152 @code{sclass} field) about the various flags to set in the
153 @code{asymbol} @xref{Symbols}. The generated canonical table
154 shares strings with the hidden internal symbol table.
156 Any linenumbers are read from the coff file too, and attached
157 to the symbols which own the functions the linenumbers belong to.
162 Writing a symbol to a coff file which didn't come from a coff
163 file will lose any debugging information. The @code{asymbol}
164 structure remembers the BFD from which was born, and on output
165 the back end makes sure that the same destination target as
166 source target is present.
168 When the symbols have come from a coff file then all the
169 debugging information is preserved.
171 Symbol tables are provided for writing to the back end in a
172 vector of pointers to pointers. This allows applications like
173 the linker to accumulate and output large symbol tables
174 without having to do too much byte copying.
176 This function runs through the provided symbol table and
177 patches each symbol marked as a file place holder
178 (@code{C_FILE}) to point to the next file place holder in the
179 list. It also marks each @code{offset} field in the list with
180 the offset from the first symbol of the current symbol.
182 Another function of this procedure is to turn the canonical
183 value form of BFD into the form used by coff. Internally, BFD
184 expects symbol values to be offsets from a section base; so a
185 symbol physically at 0x120, but in a section starting at
186 0x100, would have the value 0x20. Coff expects symbols to
187 contain their final value, so symbols have their values
188 changed at this point to reflect their sum with their owning
189 section. Note that this transformation uses the
190 <<output_section>> field of the @code{asymbol}'s
191 @code{asection} @xref{Sections}.
193 o coff_mangle_symbols
195 This routine runs though the provided symbol table and uses
196 the offsets generated by the previous pass and the pointers
197 generated when the symbol table was read in to create the
198 structured hierachy required by coff. It changes each pointer
199 to a symbol to an index into the symbol table of the symbol
204 This routine runs through the symbol table and patches up the
205 symbols from their internal form into the coff way, calls the
206 bit twiddlers and writes out the tabel to the file.
215 The hidden information for an asymbol is described in a
216 coff_ptr_struct, which is typedefed to a combined_entry_type
220 .typedef struct coff_ptr_struct
223 . {* Remembers the offset from the first symbol in the file for
224 . this symbol. Generated by coff_renumber_symbols. *}
225 .unsigned int offset;
227 . {* Should the tag field of this symbol be renumbered.
228 . Created by coff_pointerize_aux. *}
231 . {* Should the endidx field of this symbol be renumbered.
232 . Created by coff_pointerize_aux. *}
235 . {* The container for the symbol structure as read and translated
239 . union internal_auxent auxent;
240 . struct internal_syment syment;
242 .} combined_entry_type;
245 .{* Each canonical asymbol really looks like this: *}
247 .typedef struct coff_symbol_struct
249 . {* The actual symbol which the rest of BFD works with *}
252 . {* A pointer to the hidden information for this symbol *}
253 .combined_entry_type *native;
255 . {* A pointer to the linenumber information for this symbol *}
256 .struct lineno_cache_entry *lineno;
258 . {* Have the line numbers been relocated yet ? *}
259 .boolean done_lineno;
266 extern bfd_error_vector_type bfd_error_vector
;
271 #define PUTWORD bfd_h_put_32
272 #define PUTHALF bfd_h_put_16
273 #define PUTBYTE bfd_h_put_8
275 #ifndef GET_FCN_LNNOPTR
276 #define GET_FCN_LNNOPTR(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr)
279 #ifndef GET_FCN_ENDNDX
280 #define GET_FCN_ENDNDX(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx)
283 #ifndef PUT_FCN_LNNOPTR
284 #define PUT_FCN_LNNOPTR(abfd, in, ext) PUTWORD(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr)
286 #ifndef PUT_FCN_ENDNDX
287 #define PUT_FCN_ENDNDX(abfd, in, ext) PUTWORD(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx)
289 #ifndef GET_LNSZ_LNNO
290 #define GET_LNSZ_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_lnno)
292 #ifndef GET_LNSZ_SIZE
293 #define GET_LNSZ_SIZE(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_size)
295 #ifndef PUT_LNSZ_LNNO
296 #define PUT_LNSZ_LNNO(abfd, in, ext) bfd_h_put_16(abfd, in, (bfd_byte *)ext->x_sym.x_misc.x_lnsz.x_lnno)
298 #ifndef PUT_LNSZ_SIZE
299 #define PUT_LNSZ_SIZE(abfd, in, ext) bfd_h_put_16(abfd, in, (bfd_byte*) ext->x_sym.x_misc.x_lnsz.x_size)
301 #ifndef GET_SCN_SCNLEN
302 #define GET_SCN_SCNLEN(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_scnlen)
304 #ifndef GET_SCN_NRELOC
305 #define GET_SCN_NRELOC(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nreloc)
307 #ifndef GET_SCN_NLINNO
308 #define GET_SCN_NLINNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nlinno)
310 #ifndef PUT_SCN_SCNLEN
311 #define PUT_SCN_SCNLEN(abfd,in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_scn.x_scnlen)
313 #ifndef PUT_SCN_NRELOC
314 #define PUT_SCN_NRELOC(abfd,in, ext) bfd_h_put_16(abfd, in, (bfd_byte *)ext->x_scn.x_nreloc)
316 #ifndef PUT_SCN_NLINNO
317 #define PUT_SCN_NLINNO(abfd,in, ext) bfd_h_put_16(abfd,in, (bfd_byte *) ext->x_scn.x_nlinno)
319 #ifndef GET_LINENO_LNNO
320 #define GET_LINENO_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) (ext->l_lnno));
322 #ifndef PUT_LINENO_LNNO
323 #define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_16(abfd,val, (bfd_byte *) (ext->l_lnno));
327 /* void warning(); */
330 * Return a word with STYP_* (scnhdr.s_flags) flags set to represent the
331 * incoming SEC_* flags. The inverse of this function is styp_to_sec_flags().
332 * NOTE: If you add to/change this routine, you should mirror the changes
333 * in styp_to_sec_flags().
336 DEFUN(sec_to_styp_flags
, (sec_name
, sec_flags
),
337 CONST
char * sec_name AND
342 if (!strcmp(sec_name
, _TEXT
)) {
343 return((long)STYP_TEXT
);
344 } else if (!strcmp(sec_name
, _DATA
)) {
345 return((long)STYP_DATA
);
346 } else if (!strcmp(sec_name
, _BSS
)) {
347 return((long)STYP_BSS
);
349 } else if (!strcmp(sec_name
, _COMMENT
)) {
350 return((long)STYP_INFO
);
351 #endif /* _COMMENT */
354 /* Try and figure out what it should be */
355 if (sec_flags
& SEC_CODE
) styp_flags
= STYP_TEXT
;
356 if (sec_flags
& SEC_DATA
) styp_flags
= STYP_DATA
;
357 else if (sec_flags
& SEC_READONLY
)
358 #ifdef STYP_LIT /* 29k readonly text/data section */
359 styp_flags
= STYP_LIT
;
361 styp_flags
= STYP_TEXT
;
362 #endif /* STYP_LIT */
363 else if (sec_flags
& SEC_LOAD
) styp_flags
= STYP_TEXT
;
365 if (styp_flags
== 0) styp_flags
= STYP_BSS
;
370 * Return a word with SEC_* flags set to represent the incoming
371 * STYP_* flags (from scnhdr.s_flags). The inverse of this
372 * function is sec_to_styp_flags().
373 * NOTE: If you add to/change this routine, you should mirror the changes
374 * in sec_to_styp_flags().
377 DEFUN(styp_to_sec_flags
, (styp_flags
),
380 flagword sec_flags
=0;
382 if ((styp_flags
& STYP_TEXT
) || (styp_flags
& STYP_DATA
))
384 sec_flags
= SEC_LOAD
| SEC_ALLOC
;
386 else if (styp_flags
& STYP_BSS
)
388 sec_flags
= SEC_ALLOC
;
390 else if (styp_flags
& STYP_INFO
)
392 sec_flags
= SEC_NEVER_LOAD
;
396 sec_flags
= SEC_ALLOC
| SEC_LOAD
;
398 #ifdef STYP_LIT /* A29k readonly text/data section type */
399 if ((styp_flags
& STYP_LIT
) == STYP_LIT
)
401 sec_flags
= (SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
);
403 #endif /* STYP_LIT */
404 #ifdef STYP_OTHER_LOAD /* Other loaded sections */
405 if (styp_flags
& STYP_OTHER_LOAD
)
407 sec_flags
= (SEC_LOAD
| SEC_ALLOC
);
409 #endif /* STYP_SDATA */
414 #define get_index(symbol) ((int) (symbol)->udata)
415 #define set_index(symbol, idx) ((symbol)->udata =(PTR) (idx))
417 /* **********************************************************************
418 Here are all the routines for swapping the structures seen in the
419 outside world into the internal forms.
424 DEFUN(bfd_swap_reloc_in
,(abfd
, reloc_src
, reloc_dst
),
427 struct internal_reloc
*reloc_dst
)
429 reloc_dst
->r_vaddr
= bfd_h_get_32(abfd
, (bfd_byte
*)reloc_src
->r_vaddr
);
430 reloc_dst
->r_symndx
= bfd_h_get_32(abfd
, (bfd_byte
*) reloc_src
->r_symndx
);
433 reloc_dst
->r_type
= bfd_h_get_8(abfd
, reloc_src
->r_type
);
434 reloc_dst
->r_size
= bfd_h_get_8(abfd
, reloc_src
->r_size
);
436 reloc_dst
->r_type
= bfd_h_get_16(abfd
, (bfd_byte
*) reloc_src
->r_type
);
439 #ifdef SWAP_IN_RELOC_OFFSET
440 reloc_dst
->r_offset
= SWAP_IN_RELOC_OFFSET(abfd
,
441 (bfd_byte
*) reloc_src
->r_offset
);
447 DEFUN(coff_swap_reloc_out
,(abfd
, src
, dst
),
452 struct internal_reloc
*reloc_src
= (struct internal_reloc
*)src
;
453 struct external_reloc
*reloc_dst
= (struct external_reloc
*)dst
;
454 bfd_h_put_32(abfd
, reloc_src
->r_vaddr
, (bfd_byte
*) reloc_dst
->r_vaddr
);
455 bfd_h_put_32(abfd
, reloc_src
->r_symndx
, (bfd_byte
*) reloc_dst
->r_symndx
);
456 bfd_h_put_16(abfd
, reloc_src
->r_type
, (bfd_byte
*)
459 #ifdef SWAP_OUT_RELOC_OFFSET
460 SWAP_OUT_RELOC_OFFSET(abfd
,
462 (bfd_byte
*) reloc_dst
->r_offset
);
464 #ifdef SWAP_OUT_RELOC_EXTRA
465 SWAP_OUT_RELOC_EXTRA(abfd
,reloc_src
, reloc_dst
);
468 return sizeof(struct external_reloc
);
472 DEFUN(bfd_swap_filehdr_in
,(abfd
, filehdr_src
, filehdr_dst
),
474 FILHDR
*filehdr_src AND
475 struct internal_filehdr
*filehdr_dst
)
477 filehdr_dst
->f_magic
= bfd_h_get_16(abfd
, (bfd_byte
*) filehdr_src
->f_magic
);
478 filehdr_dst
->f_nscns
= bfd_h_get_16(abfd
, (bfd_byte
*)filehdr_src
-> f_nscns
);
479 filehdr_dst
->f_timdat
= bfd_h_get_32(abfd
, (bfd_byte
*)filehdr_src
-> f_timdat
);
480 filehdr_dst
->f_symptr
= bfd_h_get_32(abfd
, (bfd_byte
*)filehdr_src
-> f_symptr
);
481 filehdr_dst
->f_nsyms
= bfd_h_get_32(abfd
, (bfd_byte
*)filehdr_src
-> f_nsyms
);
482 filehdr_dst
->f_opthdr
= bfd_h_get_16(abfd
, (bfd_byte
*)filehdr_src
-> f_opthdr
);
483 filehdr_dst
->f_flags
= bfd_h_get_16(abfd
, (bfd_byte
*)filehdr_src
-> f_flags
);
487 DEFUN(coff_swap_filehdr_out
,(abfd
, in
, out
),
492 struct internal_filehdr
*filehdr_in
= (struct internal_filehdr
*)in
;
493 FILHDR
*filehdr_out
= (FILHDR
*)out
;
494 bfd_h_put_16(abfd
, filehdr_in
->f_magic
, (bfd_byte
*) filehdr_out
->f_magic
);
495 bfd_h_put_16(abfd
, filehdr_in
->f_nscns
, (bfd_byte
*) filehdr_out
->f_nscns
);
496 bfd_h_put_32(abfd
, filehdr_in
->f_timdat
, (bfd_byte
*) filehdr_out
->f_timdat
);
497 bfd_h_put_32(abfd
, filehdr_in
->f_symptr
, (bfd_byte
*) filehdr_out
->f_symptr
);
498 bfd_h_put_32(abfd
, filehdr_in
->f_nsyms
, (bfd_byte
*) filehdr_out
->f_nsyms
);
499 bfd_h_put_16(abfd
, filehdr_in
->f_opthdr
, (bfd_byte
*) filehdr_out
->f_opthdr
);
500 bfd_h_put_16(abfd
, filehdr_in
->f_flags
, (bfd_byte
*) filehdr_out
->f_flags
);
501 return sizeof(FILHDR
);
505 #ifndef NO_COFF_SYMBOLS
508 DEFUN(coff_swap_sym_in
,(abfd
, ext1
, in1
),
513 SYMENT
*ext
= (SYMENT
*)ext1
;
514 struct internal_syment
*in
= (struct internal_syment
*)in1
;
516 if( ext
->e
.e_name
[0] == 0) {
517 in
->_n
._n_n
._n_zeroes
= 0;
518 in
->_n
._n_n
._n_offset
= bfd_h_get_32(abfd
, (bfd_byte
*) ext
->e
.e
.e_offset
);
521 #if SYMNMLEN != E_SYMNMLEN
522 -> Error
, we need to cope with truncating
or extending SYMNMLEN
!;
524 memcpy(in
->_n
._n_name
, ext
->e
.e_name
, SYMNMLEN
);
527 in
->n_value
= bfd_h_get_32(abfd
, (bfd_byte
*) ext
->e_value
);
528 in
->n_scnum
= bfd_h_get_16(abfd
, (bfd_byte
*) ext
->e_scnum
);
529 if (sizeof(ext
->e_type
) == 2){
530 in
->n_type
= bfd_h_get_16(abfd
, (bfd_byte
*) ext
->e_type
);
533 in
->n_type
= bfd_h_get_32(abfd
, (bfd_byte
*) ext
->e_type
);
535 in
->n_sclass
= bfd_h_get_8(abfd
, ext
->e_sclass
);
536 in
->n_numaux
= bfd_h_get_8(abfd
, ext
->e_numaux
);
540 DEFUN(coff_swap_sym_out
,(abfd
, inp
, extp
),
545 struct internal_syment
*in
= (struct internal_syment
*)inp
;
546 SYMENT
*ext
=(SYMENT
*)extp
;
547 if(in
->_n
._n_name
[0] == 0) {
548 bfd_h_put_32(abfd
, 0, (bfd_byte
*) ext
->e
.e
.e_zeroes
);
549 bfd_h_put_32(abfd
, in
->_n
._n_n
._n_offset
, (bfd_byte
*) ext
->e
.e
.e_offset
);
552 #if SYMNMLEN != E_SYMNMLEN
553 -> Error
, we need to cope with truncating
or extending SYMNMLEN
!;
555 memcpy(ext
->e
.e_name
, in
->_n
._n_name
, SYMNMLEN
);
558 bfd_h_put_32(abfd
, in
->n_value
, (bfd_byte
*) ext
->e_value
);
559 bfd_h_put_16(abfd
, in
->n_scnum
, (bfd_byte
*) ext
->e_scnum
);
560 if (sizeof(ext
->e_type
) == 2)
562 bfd_h_put_16(abfd
, in
->n_type
, (bfd_byte
*) ext
->e_type
);
566 bfd_h_put_32(abfd
, in
->n_type
, (bfd_byte
*) ext
->e_type
);
568 bfd_h_put_8(abfd
, in
->n_sclass
, ext
->e_sclass
);
569 bfd_h_put_8(abfd
, in
->n_numaux
, ext
->e_numaux
);
570 return sizeof(SYMENT
);
574 DEFUN(coff_swap_aux_in
,(abfd
, ext1
, type
, class, in1
),
581 AUXENT
*ext
= (AUXENT
*)ext1
;
582 union internal_auxent
*in
= (union internal_auxent
*)in1
;
586 if (ext
->x_file
.x_fname
[0] == 0) {
587 in
->x_file
.x_n
.x_zeroes
= 0;
588 in
->x_file
.x_n
.x_offset
=
589 bfd_h_get_32(abfd
, (bfd_byte
*) ext
->x_file
.x_n
.x_offset
);
591 #if FILNMLEN != E_FILNMLEN
592 -> Error
, we need to cope with truncating
or extending FILNMLEN
!;
594 memcpy (in
->x_file
.x_fname
, ext
->x_file
.x_fname
, FILNMLEN
);
599 /* RS/6000 "csect" auxents */
603 in
->x_csect
.x_scnlen
= bfd_h_get_32 (abfd
, (bfd_byte
*) ext
->x_csect
.x_scnlen
);
604 in
->x_csect
.x_parmhash
= bfd_h_get_32 (abfd
, (bfd_byte
*) ext
->x_csect
.x_parmhash
);
605 in
->x_csect
.x_snhash
= bfd_h_get_16 (abfd
, (bfd_byte
*) ext
->x_csect
.x_snhash
);
606 /* We don't have to hack bitfields in x_smtyp because it's defined by
607 shifts-and-ands, which are equivalent on all byte orders. */
608 in
->x_csect
.x_smtyp
= bfd_h_get_8 (abfd
, (bfd_byte
*) ext
->x_csect
.x_smtyp
);
609 in
->x_csect
.x_smclas
= bfd_h_get_8 (abfd
, (bfd_byte
*) ext
->x_csect
.x_smclas
);
610 in
->x_csect
.x_stab
= bfd_h_get_32 (abfd
, (bfd_byte
*) ext
->x_csect
.x_stab
);
611 in
->x_csect
.x_snstab
= bfd_h_get_16 (abfd
, (bfd_byte
*) ext
->x_csect
.x_snstab
);
620 if (type
== T_NULL
) {
621 in
->x_scn
.x_scnlen
= GET_SCN_SCNLEN(abfd
, ext
);
622 in
->x_scn
.x_nreloc
= GET_SCN_NRELOC(abfd
, ext
);
623 in
->x_scn
.x_nlinno
= GET_SCN_NLINNO(abfd
, ext
);
627 in
->x_sym
.x_tagndx
.l
= bfd_h_get_32(abfd
, (bfd_byte
*) ext
->x_sym
.x_tagndx
);
629 in
->x_sym
.x_tvndx
= bfd_h_get_16(abfd
, (bfd_byte
*) ext
->x_sym
.x_tvndx
);
632 if (ISARY(type
) || class == C_BLOCK
) {
633 #if DIMNUM != E_DIMNUM
634 -> Error
, we need to cope with truncating
or extending DIMNUM
!;
636 in
->x_sym
.x_fcnary
.x_ary
.x_dimen
[0] = bfd_h_get_16(abfd
, (bfd_byte
*) ext
->x_sym
.x_fcnary
.x_ary
.x_dimen
[0]);
637 in
->x_sym
.x_fcnary
.x_ary
.x_dimen
[1] = bfd_h_get_16(abfd
, (bfd_byte
*) ext
->x_sym
.x_fcnary
.x_ary
.x_dimen
[1]);
638 in
->x_sym
.x_fcnary
.x_ary
.x_dimen
[2] = bfd_h_get_16(abfd
, (bfd_byte
*) ext
->x_sym
.x_fcnary
.x_ary
.x_dimen
[2]);
639 in
->x_sym
.x_fcnary
.x_ary
.x_dimen
[3] = bfd_h_get_16(abfd
, (bfd_byte
*) ext
->x_sym
.x_fcnary
.x_ary
.x_dimen
[3]);
642 in
->x_sym
.x_fcnary
.x_fcn
.x_lnnoptr
= GET_FCN_LNNOPTR(abfd
, ext
);
643 in
->x_sym
.x_fcnary
.x_fcn
.x_endndx
.l
= GET_FCN_ENDNDX(abfd
, ext
);
646 in
->x_sym
.x_misc
.x_fsize
= bfd_h_get_32(abfd
, (bfd_byte
*) ext
->x_sym
.x_misc
.x_fsize
);
649 in
->x_sym
.x_misc
.x_lnsz
.x_lnno
= GET_LNSZ_LNNO(abfd
, ext
);
650 in
->x_sym
.x_misc
.x_lnsz
.x_size
= GET_LNSZ_SIZE(abfd
, ext
);
656 DEFUN(coff_swap_aux_out
,(abfd
, inp
, type
, class, extp
),
663 union internal_auxent
*in
= (union internal_auxent
*)inp
;
664 AUXENT
*ext
= (AUXENT
*)extp
;
667 if (in
->x_file
.x_fname
[0] == 0) {
668 PUTWORD(abfd
, 0, (bfd_byte
*) ext
->x_file
.x_n
.x_zeroes
);
670 in
->x_file
.x_n
.x_offset
,
671 (bfd_byte
*) ext
->x_file
.x_n
.x_offset
);
674 #if FILNMLEN != E_FILNMLEN
675 -> Error
, we need to cope with truncating
or extending FILNMLEN
!;
677 memcpy (ext
->x_file
.x_fname
, in
->x_file
.x_fname
, FILNMLEN
);
683 /* RS/6000 "csect" auxents */
686 PUTWORD (abfd
, in
->x_csect
.x_scnlen
, ext
->x_csect
.x_scnlen
);
687 PUTWORD (abfd
, in
->x_csect
.x_parmhash
, ext
->x_csect
.x_parmhash
);
688 PUTHALF (abfd
, in
->x_csect
.x_snhash
, ext
->x_csect
.x_snhash
);
689 /* We don't have to hack bitfields in x_smtyp because it's defined by
690 shifts-and-ands, which are equivalent on all byte orders. */
691 PUTBYTE (abfd
, in
->x_csect
.x_smtyp
, ext
->x_csect
.x_smtyp
);
692 PUTBYTE (abfd
, in
->x_csect
.x_smclas
, ext
->x_csect
.x_smclas
);
693 PUTWORD (abfd
, in
->x_csect
.x_stab
, ext
->x_csect
.x_stab
);
694 PUTHALF (abfd
, in
->x_csect
.x_snstab
, ext
->x_csect
.x_snstab
);
703 if (type
== T_NULL
) {
704 PUT_SCN_SCNLEN(abfd
, in
->x_scn
.x_scnlen
, ext
);
705 PUT_SCN_NRELOC(abfd
, in
->x_scn
.x_nreloc
, ext
);
706 PUT_SCN_NLINNO(abfd
, in
->x_scn
.x_nlinno
, ext
);
710 PUTWORD(abfd
, in
->x_sym
.x_tagndx
.l
, (bfd_byte
*) ext
->x_sym
.x_tagndx
);
712 bfd_h_put_16(abfd
, in
->x_sym
.x_tvndx
, (bfd_byte
*) ext
->x_sym
.x_tvndx
);
716 PUTWORD(abfd
, in
->x_sym
.x_misc
.x_fsize
, (bfd_byte
*) ext
->x_sym
.x_misc
.x_fsize
);
717 PUT_FCN_LNNOPTR(abfd
, in
->x_sym
.x_fcnary
.x_fcn
.x_lnnoptr
, ext
);
718 PUT_FCN_ENDNDX(abfd
, in
->x_sym
.x_fcnary
.x_fcn
.x_endndx
.l
, ext
);
722 if (ISARY(type
) || class == C_BLOCK
) {
723 #if DIMNUM != E_DIMNUM
724 -> Error
, we need to cope with truncating
or extending DIMNUM
!;
726 bfd_h_put_16(abfd
, in
->x_sym
.x_fcnary
.x_ary
.x_dimen
[0], (bfd_byte
*)ext
->x_sym
.x_fcnary
.x_ary
.x_dimen
[0]);
727 bfd_h_put_16(abfd
, in
->x_sym
.x_fcnary
.x_ary
.x_dimen
[1], (bfd_byte
*)ext
->x_sym
.x_fcnary
.x_ary
.x_dimen
[1]);
728 bfd_h_put_16(abfd
, in
->x_sym
.x_fcnary
.x_ary
.x_dimen
[2], (bfd_byte
*)ext
->x_sym
.x_fcnary
.x_ary
.x_dimen
[2]);
729 bfd_h_put_16(abfd
, in
->x_sym
.x_fcnary
.x_ary
.x_dimen
[3], (bfd_byte
*)ext
->x_sym
.x_fcnary
.x_ary
.x_dimen
[3]);
732 PUT_LNSZ_LNNO(abfd
, in
->x_sym
.x_misc
.x_lnsz
.x_lnno
, ext
);
733 PUT_LNSZ_SIZE(abfd
, in
->x_sym
.x_misc
.x_lnsz
.x_size
, ext
);
735 PUT_FCN_LNNOPTR(abfd
, in
->x_sym
.x_fcnary
.x_fcn
.x_lnnoptr
, ext
);
736 PUT_FCN_ENDNDX(abfd
, in
->x_sym
.x_fcnary
.x_fcn
.x_endndx
.l
, ext
);
741 return sizeof(AUXENT
);
744 #endif /* NO_COFF_SYMBOLS */
746 #ifndef NO_COFF_LINENOS
749 DEFUN(coff_swap_lineno_in
,(abfd
, ext1
, in1
),
754 LINENO
*ext
= (LINENO
*)ext1
;
755 struct internal_lineno
*in
= (struct internal_lineno
*)in1
;
757 in
->l_addr
.l_symndx
= bfd_h_get_32(abfd
, (bfd_byte
*) ext
->l_addr
.l_symndx
);
758 in
->l_lnno
= GET_LINENO_LNNO(abfd
, ext
);
762 DEFUN(coff_swap_lineno_out
,(abfd
, inp
, outp
),
767 struct internal_lineno
*in
= (struct internal_lineno
*)inp
;
768 struct external_lineno
*ext
= (struct external_lineno
*)outp
;
769 PUTWORD(abfd
, in
->l_addr
.l_symndx
, (bfd_byte
*)
770 ext
->l_addr
.l_symndx
);
772 PUT_LINENO_LNNO (abfd
, in
->l_lnno
, ext
);
773 return sizeof(struct external_lineno
);
776 #endif /* NO_COFF_LINENOS */
780 DEFUN(bfd_swap_aouthdr_in
,(abfd
, aouthdr_ext1
, aouthdr_int1
),
785 AOUTHDR
*aouthdr_ext
= (AOUTHDR
*) aouthdr_ext1
;
786 struct internal_aouthdr
*aouthdr_int
= (struct internal_aouthdr
*)aouthdr_int1
;
788 aouthdr_int
->magic
= bfd_h_get_16(abfd
, (bfd_byte
*) aouthdr_ext
->magic
);
789 aouthdr_int
->vstamp
= bfd_h_get_16(abfd
, (bfd_byte
*) aouthdr_ext
->vstamp
);
790 aouthdr_int
->tsize
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->tsize
);
791 aouthdr_int
->dsize
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->dsize
);
792 aouthdr_int
->bsize
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->bsize
);
793 aouthdr_int
->entry
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->entry
);
794 aouthdr_int
->text_start
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->text_start
);
795 aouthdr_int
->data_start
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->data_start
);
797 aouthdr_int
->tagentries
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->tagentries
);
801 aouthdr_int
->o_toc
= bfd_h_get_32(abfd
, aouthdr_ext
->o_toc
);
802 aouthdr_int
->o_snentry
= bfd_h_get_16(abfd
, aouthdr_ext
->o_snentry
);
803 aouthdr_int
->o_sntext
= bfd_h_get_16(abfd
, aouthdr_ext
->o_sntext
);
804 aouthdr_int
->o_sndata
= bfd_h_get_16(abfd
, aouthdr_ext
->o_sndata
);
805 aouthdr_int
->o_sntoc
= bfd_h_get_16(abfd
, aouthdr_ext
->o_sntoc
);
806 aouthdr_int
->o_snloader
= bfd_h_get_16(abfd
, aouthdr_ext
->o_snloader
);
807 aouthdr_int
->o_snbss
= bfd_h_get_16(abfd
, aouthdr_ext
->o_snbss
);
808 aouthdr_int
->o_algntext
= bfd_h_get_16(abfd
, aouthdr_ext
->o_algntext
);
809 aouthdr_int
->o_algndata
= bfd_h_get_16(abfd
, aouthdr_ext
->o_algndata
);
810 aouthdr_int
->o_modtype
= bfd_h_get_16(abfd
, aouthdr_ext
->o_modtype
);
811 aouthdr_int
->o_maxstack
= bfd_h_get_32(abfd
, aouthdr_ext
->o_maxstack
);
816 DEFUN(coff_swap_aouthdr_out
,(abfd
, in
, out
),
821 struct internal_aouthdr
*aouthdr_in
= (struct internal_aouthdr
*)in
;
822 AOUTHDR
*aouthdr_out
= (AOUTHDR
*)out
;
823 bfd_h_put_16(abfd
, aouthdr_in
->magic
, (bfd_byte
*) aouthdr_out
->magic
);
824 bfd_h_put_16(abfd
, aouthdr_in
->vstamp
, (bfd_byte
*) aouthdr_out
->vstamp
);
825 bfd_h_put_32(abfd
, aouthdr_in
->tsize
, (bfd_byte
*) aouthdr_out
->tsize
);
826 bfd_h_put_32(abfd
, aouthdr_in
->dsize
, (bfd_byte
*) aouthdr_out
->dsize
);
827 bfd_h_put_32(abfd
, aouthdr_in
->bsize
, (bfd_byte
*) aouthdr_out
->bsize
);
828 bfd_h_put_32(abfd
, aouthdr_in
->entry
, (bfd_byte
*) aouthdr_out
->entry
);
829 bfd_h_put_32(abfd
, aouthdr_in
->text_start
,
830 (bfd_byte
*) aouthdr_out
->text_start
);
831 bfd_h_put_32(abfd
, aouthdr_in
->data_start
, (bfd_byte
*) aouthdr_out
->data_start
);
833 bfd_h_put_32(abfd
, aouthdr_in
->tagentries
, (bfd_byte
*) aouthdr_out
->tagentries
);
835 return sizeof(AOUTHDR
);
839 DEFUN(coff_swap_scnhdr_in
,(abfd
, scnhdr_ext
, scnhdr_int
),
841 SCNHDR
*scnhdr_ext AND
842 struct internal_scnhdr
*scnhdr_int
)
844 memcpy(scnhdr_int
->s_name
, scnhdr_ext
->s_name
, sizeof(scnhdr_int
->s_name
));
845 scnhdr_int
->s_vaddr
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_vaddr
);
846 scnhdr_int
->s_paddr
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_paddr
);
847 scnhdr_int
->s_size
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_size
);
849 scnhdr_int
->s_scnptr
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_scnptr
);
850 scnhdr_int
->s_relptr
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_relptr
);
851 scnhdr_int
->s_lnnoptr
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_lnnoptr
);
852 scnhdr_int
->s_flags
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_flags
);
854 scnhdr_int
->s_nreloc
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_nreloc
);
855 scnhdr_int
->s_nlnno
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_nlnno
);
857 scnhdr_int
->s_nreloc
= bfd_h_get_16(abfd
, (bfd_byte
*) scnhdr_ext
->s_nreloc
);
858 scnhdr_int
->s_nlnno
= bfd_h_get_16(abfd
, (bfd_byte
*) scnhdr_ext
->s_nlnno
);
861 scnhdr_int
->s_align
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_align
);
866 DEFUN(coff_swap_scnhdr_out
,(abfd
, in
, out
),
871 struct internal_scnhdr
*scnhdr_int
= (struct internal_scnhdr
*)in
;
872 SCNHDR
*scnhdr_ext
= (SCNHDR
*)out
;
873 memcpy(scnhdr_ext
->s_name
, scnhdr_int
->s_name
, sizeof(scnhdr_int
->s_name
));
874 PUTWORD(abfd
, scnhdr_int
->s_vaddr
, (bfd_byte
*) scnhdr_ext
->s_vaddr
);
875 PUTWORD(abfd
, scnhdr_int
->s_paddr
, (bfd_byte
*) scnhdr_ext
->s_paddr
);
876 PUTWORD(abfd
, scnhdr_int
->s_size
, (bfd_byte
*) scnhdr_ext
->s_size
);
877 PUTWORD(abfd
, scnhdr_int
->s_scnptr
, (bfd_byte
*) scnhdr_ext
->s_scnptr
);
878 PUTWORD(abfd
, scnhdr_int
->s_relptr
, (bfd_byte
*) scnhdr_ext
->s_relptr
);
879 PUTWORD(abfd
, scnhdr_int
->s_lnnoptr
, (bfd_byte
*) scnhdr_ext
->s_lnnoptr
);
880 PUTWORD(abfd
, scnhdr_int
->s_flags
, (bfd_byte
*) scnhdr_ext
->s_flags
);
882 PUTWORD(abfd
, scnhdr_int
->s_nlnno
, (bfd_byte
*) scnhdr_ext
->s_nlnno
);
883 PUTWORD(abfd
, scnhdr_int
->s_nreloc
, (bfd_byte
*) scnhdr_ext
->s_nreloc
);
885 PUTHALF(abfd
, scnhdr_int
->s_nlnno
, (bfd_byte
*) scnhdr_ext
->s_nlnno
);
886 PUTHALF(abfd
, scnhdr_int
->s_nreloc
, (bfd_byte
*) scnhdr_ext
->s_nreloc
);
890 PUTWORD(abfd
, scnhdr_int
->s_align
, (bfd_byte
*) scnhdr_ext
->s_align
);
892 return sizeof(SCNHDR
);
897 initialize a section structure with information peculiar to this
898 particular implementation of coff
902 DEFUN(coff_new_section_hook
,(abfd
, section
),
906 section
->alignment_power
= abfd
->xvec
->align_power_min
;
907 /* Allocate aux records for section symbols, to store size and
910 @@ Shouldn't use constant multiplier here! */
911 coffsymbol (section
->symbol
)->native
=
912 (combined_entry_type
*) bfd_zalloc (abfd
,
913 sizeof (combined_entry_type
) * 10);
917 static asection bfd_debug_section
= { "*DEBUG*" };
919 /* Take a section header read from a coff file (in HOST byte order),
920 and make a BFD "section" out of it. */
922 DEFUN(make_a_section_from_file
,(abfd
, hdr
, target_index
),
924 struct internal_scnhdr
*hdr AND
925 unsigned int target_index
)
927 asection
*return_section
;
930 /* Assorted wastage to null-terminate the name, thanks AT&T! */
931 name
= bfd_alloc(abfd
, sizeof (hdr
->s_name
)+1);
933 bfd_error
= no_memory
;
936 strncpy(name
, (char *) &hdr
->s_name
[0], sizeof (hdr
->s_name
));
937 name
[sizeof (hdr
->s_name
)] = 0;
939 return_section
= bfd_make_section(abfd
, name
);
940 if (return_section
== NULL
)
943 /* s_paddr is presumed to be = to s_vaddr */
945 return_section
->vma
= hdr
->s_vaddr
;
946 return_section
->_raw_size
= hdr
->s_size
;
947 return_section
->filepos
= hdr
->s_scnptr
;
948 return_section
->rel_filepos
= hdr
->s_relptr
;
949 return_section
->reloc_count
= hdr
->s_nreloc
;
952 /* FIXME, use a temp var rather than alignment_power */
953 return_section
->alignment_power
= hdr
->s_align
;
956 for (i
= 0; i
< 32; i
++) {
957 if ((1 << i
) >= (int) (return_section
->alignment_power
)) {
958 return_section
->alignment_power
= i
;
965 return_section
->line_filepos
= hdr
->s_lnnoptr
;
967 return_section->linesize = hdr->s_nlnno * sizeof (struct lineno);
970 return_section
->lineno_count
= hdr
->s_nlnno
;
971 return_section
->userdata
= NULL
;
972 return_section
->next
= (asection
*) NULL
;
973 return_section
->flags
= styp_to_sec_flags(hdr
->s_flags
);
975 return_section
->target_index
= target_index
;
977 if (hdr
->s_nreloc
!= 0)
978 return_section
->flags
|= SEC_RELOC
;
979 /* FIXME: should this check 'hdr->s_size > 0' */
980 if (hdr
->s_scnptr
!= 0)
981 return_section
->flags
|= SEC_HAS_CONTENTS
;
985 DEFUN(coff_mkobject
,(abfd
),
988 abfd
->tdata
.coff_obj_data
= (struct coff_tdata
*)bfd_zalloc (abfd
,sizeof(coff_data_type
));
989 if (abfd
->tdata
.coff_obj_data
== 0){
990 bfd_error
= no_memory
;
993 coff_data(abfd
)->relocbase
= 0;
994 /* make_abs_section(abfd);*/
1000 DEFUN(coff_real_object_p
,(abfd
, nscns
, internal_f
, internal_a
),
1003 struct internal_filehdr
*internal_f AND
1004 struct internal_aouthdr
*internal_a
)
1006 coff_data_type
*coff
;
1007 enum bfd_architecture arch
;
1009 size_t readsize
; /* length of file_info */
1010 SCNHDR
*external_sections
;
1012 /* Build a play area */
1013 if (coff_mkobject(abfd
) != true)
1016 coff
= coff_data(abfd
);
1019 external_sections
= (SCNHDR
*)bfd_alloc(abfd
, readsize
= (nscns
* SCNHSZ
));
1021 if (bfd_read((PTR
)external_sections
, 1, readsize
, abfd
) != readsize
) {
1026 /* Now copy data as required; construct all asections etc */
1027 coff
->symbol_index_slew
= 0;
1029 coff
->raw_syment_count
= 0;
1030 coff
->raw_linenos
= 0;
1031 coff
->raw_syments
= 0;
1032 coff
->sym_filepos
=0;
1033 coff
->flags
= internal_f
->f_flags
;
1036 for (i
= 0; i
< nscns
; i
++) {
1037 struct internal_scnhdr tmp
;
1038 coff_swap_scnhdr_in(abfd
, external_sections
+ i
, &tmp
);
1039 make_a_section_from_file(abfd
,&tmp
, i
+1);
1043 /* make_abs_section(abfd);*/
1045 /* Determine the machine architecture and type. */
1047 switch (internal_f
->f_magic
) {
1050 arch
= bfd_arch_i386
;
1055 #ifdef A29K_MAGIC_BIG
1056 case A29K_MAGIC_BIG
:
1057 case A29K_MAGIC_LITTLE
:
1058 arch
= bfd_arch_a29k
;
1067 arch
= bfd_arch_mips
;
1075 arch
= bfd_arch_m68k
;
1083 arch
= bfd_arch_m88k
;
1089 arch
= bfd_arch_z8k
;
1090 switch (internal_f
->f_flags
& F_MACHMASK
)
1093 machine
= bfd_mach_z8001
;
1096 machine
= bfd_mach_z8002
;
1107 arch
= bfd_arch_i960
;
1108 switch (F_I960TYPE
& internal_f
->f_flags
)
1112 machine
= bfd_mach_i960_core
;
1115 machine
= bfd_mach_i960_kb_sb
;
1118 machine
= bfd_mach_i960_mc
;
1121 machine
= bfd_mach_i960_xa
;
1124 machine
= bfd_mach_i960_ca
;
1127 machine
= bfd_mach_i960_ka_sa
;
1138 arch
= bfd_arch_rs6000
;
1145 arch
= bfd_arch_we32k
;
1152 arch
= bfd_arch_h8300
;
1157 default: /* Unreadable input file type */
1158 arch
= bfd_arch_obscure
;
1162 bfd_default_set_arch_mach(abfd
, arch
, machine
);
1163 if (!(internal_f
->f_flags
& F_RELFLG
))
1164 abfd
->flags
|= HAS_RELOC
;
1165 if ((internal_f
->f_flags
& F_EXEC
))
1166 abfd
->flags
|= EXEC_P
;
1167 if (!(internal_f
->f_flags
& F_LNNO
))
1168 abfd
->flags
|= HAS_LINENO
;
1169 if (!(internal_f
->f_flags
& F_LSYMS
))
1170 abfd
->flags
|= HAS_LOCALS
;
1173 bfd_get_symcount(abfd
) = internal_f
->f_nsyms
;
1174 if (internal_f
->f_nsyms
)
1175 abfd
->flags
|= HAS_SYMS
;
1177 coff
->sym_filepos
= internal_f
->f_symptr
;
1179 /* These members communicate important constants about the symbol table
1180 to GDB's symbol-reading code. These `constants' unfortunately vary
1181 from coff implementation to implementation... */
1182 #ifndef NO_COFF_SYMBOLS
1183 coff
->local_n_btmask
= N_BTMASK
;
1184 coff
->local_n_btshft
= N_BTSHFT
;
1185 coff
->local_n_tmask
= N_TMASK
;
1186 coff
->local_n_tshift
= N_TSHIFT
;
1187 coff
->local_symesz
= SYMESZ
;
1188 coff
->local_auxesz
= AUXESZ
;
1189 coff
->local_linesz
= LINESZ
;
1192 coff
->symbols
= (coff_symbol_type
*) NULL
;
1193 bfd_get_start_address(abfd
) = internal_f
->f_opthdr
? internal_a
->entry
: 0;
1197 bfd_release(abfd
, coff
);
1198 return (bfd_target
*)NULL
;
1202 DEFUN(coff_object_p
,(abfd
),
1208 struct internal_filehdr internal_f
;
1209 struct internal_aouthdr internal_a
;
1211 bfd_error
= system_call_error
;
1213 /* figure out how much to read */
1214 if (bfd_read((PTR
) &filehdr
, 1, FILHSZ
, abfd
) != FILHSZ
)
1217 bfd_swap_filehdr_in(abfd
, &filehdr
, &internal_f
);
1219 if (BADMAG(internal_f
)) {
1220 bfd_error
= wrong_format
;
1223 nscns
=internal_f
.f_nscns
;
1225 if (internal_f
.f_opthdr
) {
1226 if (bfd_read((PTR
) &opthdr
, 1,AOUTSZ
, abfd
) != AOUTSZ
) {
1229 bfd_swap_aouthdr_in(abfd
, (char *)&opthdr
, (char *)&internal_a
);
1232 /* Seek past the opt hdr stuff */
1233 bfd_seek(abfd
, internal_f
.f_opthdr
+ FILHSZ
, SEEK_SET
);
1235 /* if the optional header is NULL or not the correct size then
1236 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1237 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1238 optional header is of a different size.
1240 But the mips keeps extra stuff in it's opthdr, so dont check
1244 #if defined(M88) || defined(I960)
1245 if (internal_f
.f_opthdr
!= 0 && AOUTSZ
!= internal_f
.f_opthdr
)
1246 return (bfd_target
*)NULL
;
1249 return coff_real_object_p(abfd
, nscns
, &internal_f
, &internal_a
);
1254 #ifndef NO_COFF_LINENOS
1257 DEFUN(coff_count_linenumbers
,(abfd
),
1260 unsigned int limit
= bfd_get_symcount(abfd
);
1264 asection
*s
= abfd
->sections
->output_section
;
1266 BFD_ASSERT(s
->lineno_count
== 0);
1272 for (p
= abfd
->outsymbols
, i
= 0; i
< limit
; i
++, p
++) {
1273 asymbol
*q_maybe
= *p
;
1274 if (q_maybe
->the_bfd
->xvec
->flavour
== bfd_target_coff_flavour
) {
1275 coff_symbol_type
*q
= coffsymbol(q_maybe
);
1278 This symbol has a linenumber, increment the owning
1279 section's linenumber count
1281 alent
*l
= q
->lineno
;
1282 q
->symbol
.section
->output_section
->lineno_count
++;
1284 while (l
->line_number
) {
1285 q
->symbol
.section
->output_section
->lineno_count
++;
1293 #endif /* NO_COFF_LINENOS */
1295 #ifndef NO_COFF_SYMBOLS
1298 Takes a bfd and a symbol, returns a pointer to the coff specific area
1299 of the symbol if there is one.
1301 static coff_symbol_type
*
1302 DEFUN(coff_symbol_from
,(ignore_abfd
, symbol
),
1303 bfd
*ignore_abfd AND
1306 if (symbol
->the_bfd
->xvec
->flavour
!= bfd_target_coff_flavour
)
1307 return (coff_symbol_type
*)NULL
;
1309 if (symbol
->the_bfd
->tdata
.coff_obj_data
== (coff_data_type
*)NULL
)
1310 return (coff_symbol_type
*)NULL
;
1312 return (coff_symbol_type
*) symbol
;
1318 DEFUN(fixup_symbol_value
,(coff_symbol_ptr
, syment
),
1319 coff_symbol_type
*coff_symbol_ptr AND
1320 struct internal_syment
*syment
)
1323 /* Normalize the symbol flags */
1324 if (coff_symbol_ptr
->symbol
.section
== &bfd_com_section
) {
1325 /* a common symbol is undefined with a value */
1326 syment
->n_scnum
= N_UNDEF
;
1327 syment
->n_value
= coff_symbol_ptr
->symbol
.value
;
1329 else if (coff_symbol_ptr
->symbol
.flags
& BSF_DEBUGGING
) {
1330 syment
->n_value
= coff_symbol_ptr
->symbol
.value
;
1332 else if (coff_symbol_ptr
->symbol
.section
== & bfd_und_section
) {
1333 syment
->n_scnum
= N_UNDEF
;
1334 syment
->n_value
= 0;
1337 if (coff_symbol_ptr
->symbol
.section
) {
1339 coff_symbol_ptr
->symbol
.section
->output_section
->target_index
;
1342 coff_symbol_ptr
->symbol
.value
+
1343 coff_symbol_ptr
->symbol
.section
->output_offset
+
1344 coff_symbol_ptr
->symbol
.section
->output_section
->vma
;
1348 /* This can happen, but I don't know why yet (steve@cygnus.com) */
1349 syment
->n_scnum
= N_ABS
;
1350 syment
->n_value
= coff_symbol_ptr
->symbol
.value
;
1355 /* run through all the symbols in the symbol table and work out what
1356 their indexes into the symbol table will be when output
1358 Coff requires that each C_FILE symbol points to the next one in the
1359 chain, and that the last one points to the first external symbol. We
1364 DEFUN(coff_renumber_symbols
,(bfd_ptr
),
1367 unsigned int symbol_count
= bfd_get_symcount(bfd_ptr
);
1368 asymbol
**symbol_ptr_ptr
= bfd_ptr
->outsymbols
;
1369 unsigned int native_index
= 0;
1370 struct internal_syment
*last_file
= (struct internal_syment
*)NULL
;
1371 unsigned int symbol_index
;
1373 /* COFF demands that undefined symbols come after all other symbols.
1374 Since we don't need to impose this extra knowledge on all our client
1375 programs, deal with that here. Sort the symbol table; just move the
1376 undefined symbols to the end, leaving the rest alone. */
1377 /* @@ Do we have some condition we could test for, so we don't always
1378 have to do this? I don't think relocatability is quite right, but
1379 I'm not certain. [raeburn:19920508.1711EST] */
1384 newsyms
= (asymbol
**) bfd_alloc_by_size_t (bfd_ptr
,
1386 * (symbol_count
+ 1));
1387 bfd_ptr
->outsymbols
= newsyms
;
1388 for (i
= 0; i
< symbol_count
; i
++)
1389 if (symbol_ptr_ptr
[i
]->section
!= &bfd_und_section
)
1390 *newsyms
++ = symbol_ptr_ptr
[i
];
1391 for (i
= 0; i
< symbol_count
; i
++)
1392 if (symbol_ptr_ptr
[i
]->section
== &bfd_und_section
)
1393 *newsyms
++ = symbol_ptr_ptr
[i
];
1394 *newsyms
= (asymbol
*) NULL
;
1395 symbol_ptr_ptr
= bfd_ptr
->outsymbols
;
1398 for (symbol_index
= 0; symbol_index
< symbol_count
; symbol_index
++)
1400 coff_symbol_type
*coff_symbol_ptr
= coff_symbol_from(bfd_ptr
, symbol_ptr_ptr
[symbol_index
]);
1401 if (coff_symbol_ptr
&& coff_symbol_ptr
->native
) {
1402 combined_entry_type
*s
= coff_symbol_ptr
->native
;
1405 if (s
->u
.syment
.n_sclass
== C_FILE
)
1407 if (last_file
!= (struct internal_syment
*)NULL
) {
1408 last_file
->n_value
= native_index
;
1410 last_file
= &(s
->u
.syment
);
1414 /* Modify the symbol values according to their section and
1417 fixup_symbol_value(coff_symbol_ptr
, &(s
->u
.syment
));
1419 for (i
= 0; i
< s
->u
.syment
.n_numaux
+ 1; i
++) {
1420 s
[i
].offset
= native_index
++;
1427 obj_conv_table_size (bfd_ptr
) = native_index
;
1432 Run thorough the symbol table again, and fix it so that all pointers to
1433 entries are changed to the entries' index in the output symbol table.
1437 DEFUN(coff_mangle_symbols
,(bfd_ptr
),
1440 unsigned int symbol_count
= bfd_get_symcount(bfd_ptr
);
1441 asymbol
**symbol_ptr_ptr
= bfd_ptr
->outsymbols
;
1442 unsigned int symbol_index
;
1444 for (symbol_index
= 0; symbol_index
< symbol_count
; symbol_index
++)
1446 coff_symbol_type
*coff_symbol_ptr
=
1447 coff_symbol_from(bfd_ptr
, symbol_ptr_ptr
[symbol_index
]);
1449 if (coff_symbol_ptr
&& coff_symbol_ptr
->native
) {
1451 combined_entry_type
*s
= coff_symbol_ptr
->native
;
1453 for (i
= 0; i
< s
->u
.syment
.n_numaux
; i
++) {
1454 combined_entry_type
*a
= s
+ i
+ 1;
1456 a
->u
.auxent
.x_sym
.x_tagndx
.l
=
1457 a
->u
.auxent
.x_sym
.x_tagndx
.p
->offset
;
1461 a
->u
.auxent
.x_sym
.x_fcnary
.x_fcn
.x_endndx
.l
=
1462 a
->u
.auxent
.x_sym
.x_fcnary
.x_fcn
.x_endndx
.p
->offset
;
1472 static int string_size
;
1474 DEFUN(coff_fix_symbol_name
,(ignore_abfd
, symbol
, native
),
1475 bfd
*ignore_abfd AND
1477 combined_entry_type
*native
)
1479 unsigned int name_length
;
1480 union internal_auxent
*auxent
;
1481 char * name
= ( char *)(symbol
->name
);
1483 if (name
== (char *) NULL
) {
1484 /* coff symbols always have names, so we'll make one up */
1485 symbol
->name
= "strange";
1486 name
= (char *)symbol
->name
;
1488 name_length
= strlen(name
);
1490 if (native
->u
.syment
.n_sclass
== C_FILE
) {
1491 strncpy(native
->u
.syment
._n
._n_name
, ".file", SYMNMLEN
);
1492 auxent
= &(native
+1)->u
.auxent
;
1494 #ifdef COFF_LONG_FILENAMES
1495 if (name_length
<= FILNMLEN
) {
1496 strncpy(auxent
->x_file
.x_fname
, name
, FILNMLEN
);
1499 auxent
->x_file
.x_n
.x_offset
= string_size
+ 4;
1500 auxent
->x_file
.x_n
.x_zeroes
= 0;
1501 string_size
+= name_length
+ 1;
1504 strncpy(auxent
->x_file
.x_fname
, name
, FILNMLEN
);
1505 if (name_length
> FILNMLEN
) {
1506 name
[FILNMLEN
] = '\0';
1511 { /* NOT A C_FILE SYMBOL */
1512 if (name_length
<= SYMNMLEN
) {
1513 /* This name will fit into the symbol neatly */
1514 strncpy(native
->u
.syment
._n
._n_name
, symbol
->name
, SYMNMLEN
);
1517 native
->u
.syment
._n
._n_n
._n_offset
= string_size
+ 4;
1518 native
->u
.syment
._n
._n_n
._n_zeroes
= 0;
1519 string_size
+= name_length
+ 1;
1527 DEFUN(coff_write_symbol
,(abfd
, symbol
, native
, written
),
1530 combined_entry_type
*native AND
1531 unsigned int written
)
1533 unsigned int numaux
= native
->u
.syment
.n_numaux
;
1534 int type
= native
->u
.syment
.n_type
;
1535 int class = native
->u
.syment
.n_sclass
;
1539 /* @@ bfd_debug_section isn't accessible outside this file, but we know
1540 that C_FILE symbols belong there. So move them. */
1541 if (native
->u
.syment
.n_sclass
== C_FILE
)
1542 symbol
->section
= &bfd_debug_section
;
1544 if (symbol
->section
== &bfd_abs_section
)
1546 native
->u
.syment
.n_scnum
= N_ABS
;
1548 else if (symbol
->section
== &bfd_debug_section
)
1550 native
->u
.syment
.n_scnum
= N_DEBUG
;
1552 else if (symbol
->section
== &bfd_und_section
)
1554 native
->u
.syment
.n_scnum
= N_UNDEF
;
1558 native
->u
.syment
.n_scnum
=
1559 symbol
->section
->output_section
->target_index
;
1563 coff_fix_symbol_name(abfd
, symbol
, native
);
1565 coff_swap_sym_out(abfd
, &native
->u
.syment
, &buf
);
1566 bfd_write((PTR
)& buf
, 1, SYMESZ
, abfd
);
1567 for (j
= 0; j
< native
->u
.syment
.n_numaux
; j
++)
1570 memset((PTR
)&buf
, 0, AUXESZ
);
1571 coff_swap_aux_out(abfd
,
1572 &( (native
+ j
+ 1)->u
.auxent
), type
, class, &buf1
);
1573 bfd_write((PTR
) (&buf1
), 1, AUXESZ
, abfd
);
1576 Reuse somewhere in the symbol to keep the index
1578 set_index(symbol
, written
);
1579 return written
+ 1 + numaux
;
1584 DEFUN(coff_write_alien_symbol
,(abfd
, symbol
, written
),
1587 unsigned int written
)
1590 This symbol has been created by the loader, or come from a non
1591 coff format. It has no native element to inherit, make our
1594 combined_entry_type
*native
;
1595 combined_entry_type dummy
;
1597 native
->u
.syment
.n_type
= T_NULL
;
1599 native
->u
.syment
.n_flags
= 0;
1601 if (symbol
->section
== &bfd_und_section
)
1603 native
->u
.syment
.n_scnum
= N_UNDEF
;
1604 native
->u
.syment
.n_value
= symbol
->value
;
1606 else if (symbol
->section
== &bfd_com_section
)
1608 native
->u
.syment
.n_scnum
= N_UNDEF
;
1609 native
->u
.syment
.n_value
= symbol
->value
;
1613 else if (symbol
->flags
& BSF_DEBUGGING
) {
1615 remove name so it doesn't take up any space
1620 native
->u
.syment
.n_scnum
= symbol
->section
->output_section
->target_index
;
1621 native
->u
.syment
.n_value
= symbol
->value
+
1622 symbol
->section
->output_section
->vma
+
1623 symbol
->section
->output_offset
;
1625 /* Copy the any flags from the the file hdr into the symbol */
1627 coff_symbol_type
*c
= coff_symbol_from(abfd
, symbol
);
1628 if (c
!= (coff_symbol_type
*)NULL
) {
1629 native
->u
.syment
.n_flags
= c
->symbol
.the_bfd
->flags
;
1636 native
->u
.syment
.pad1
[0] = 0;
1637 native
->u
.syment
.pad1
[0] = 0;
1640 native
->u
.syment
.n_type
= 0;
1641 if (symbol
->flags
& BSF_LOCAL
)
1642 native
->u
.syment
.n_sclass
= C_STAT
;
1644 native
->u
.syment
.n_sclass
= C_EXT
;
1645 native
->u
.syment
.n_numaux
= 0;
1647 return coff_write_symbol(abfd
, symbol
, native
, written
);
1651 DEFUN(coff_write_native_symbol
,(abfd
, symbol
, written
),
1653 coff_symbol_type
*symbol AND
1654 unsigned int written
)
1657 Does this symbol have an ascociated line number - if so then
1658 make it remember this symbol index. Also tag the auxent of
1659 this symbol to point to the right place in the lineno table
1661 combined_entry_type
*native
= symbol
->native
;
1663 alent
*lineno
= symbol
->lineno
;
1665 if (lineno
&& !symbol
->done_lineno
) {
1666 unsigned int count
= 0;
1667 lineno
[count
].u
.offset
= written
;
1668 if (native
->u
.syment
.n_numaux
) {
1669 union internal_auxent
*a
= &((native
+1)->u
.auxent
);
1671 a
->x_sym
.x_fcnary
.x_fcn
.x_lnnoptr
=
1672 symbol
->symbol
.section
->output_section
->moving_line_filepos
;
1675 And count and relocate all other linenumbers
1679 while (lineno
[count
].line_number
) {
1682 I've been told this, but still need proof:
1683 > The second bug is also in `bfd/coffcode.h'. This bug causes the linker to screw
1684 > up the pc-relocations for all the line numbers in COFF code. This bug isn't
1685 > only specific to A29K implementations, but affects all systems using COFF
1686 > format binaries. Note that in COFF object files, the line number core offsets
1687 > output by the assembler are relative to the start of each procedure, not
1688 > to the start of the .text section. This patch relocates the line numbers
1689 > relative to the `native->u.syment.n_value' instead of the section virtual
1690 > address. modular!olson@cs.arizona.edu (Jon Olson)
1692 lineno
[count
].u
.offset
+= native
->u
.syment
.n_value
;
1695 lineno
[count
].u
.offset
+=
1696 symbol
->symbol
.section
->output_section
->vma
+
1697 symbol
->symbol
.section
->output_offset
;
1701 symbol
->done_lineno
= true;
1703 symbol
->symbol
.section
->output_section
->moving_line_filepos
+=
1706 return coff_write_symbol(abfd
, &( symbol
->symbol
), native
,written
);
1710 DEFUN(coff_write_symbols
,(abfd
),
1714 unsigned int limit
= bfd_get_symcount(abfd
);
1715 unsigned int written
= 0;
1722 /* Seek to the right place */
1723 bfd_seek(abfd
, obj_sym_filepos(abfd
), SEEK_SET
);
1725 /* Output all the symbols we have */
1728 for (p
= abfd
->outsymbols
, i
= 0; i
< limit
; i
++, p
++)
1730 asymbol
*symbol
= *p
;
1731 coff_symbol_type
*c_symbol
= coff_symbol_from(abfd
, symbol
);
1733 if (c_symbol
== (coff_symbol_type
*) NULL
||
1734 c_symbol
->native
== (combined_entry_type
*)NULL
)
1736 written
= coff_write_alien_symbol(abfd
, symbol
, written
);
1740 written
= coff_write_native_symbol(abfd
, c_symbol
, written
);
1745 bfd_get_symcount(abfd
) = written
;
1747 /* Now write out strings */
1749 if (string_size
!= 0)
1751 unsigned int size
= string_size
+ 4;
1754 bfd_h_put_32(abfd
, size
, buffer
);
1755 bfd_write((PTR
) buffer
, 1, sizeof(buffer
), abfd
);
1756 for (p
= abfd
->outsymbols
, i
= 0;
1761 size_t name_length
= strlen(q
->name
);
1763 coff_symbol_type
* c_symbol
= coff_symbol_from(abfd
, q
);
1764 maxlen
= ((c_symbol
!= NULL
&& c_symbol
->native
!= NULL
) &&
1765 (c_symbol
->native
->u
.syment
.n_sclass
== C_FILE
)) ?
1766 FILNMLEN
: SYMNMLEN
;
1768 if (name_length
> maxlen
) {
1769 bfd_write((PTR
) (q
->name
), 1, name_length
+ 1, abfd
);
1774 /* We would normally not write anything here, but we'll write
1775 out 4 so that any stupid coff reader which tries to read
1776 the string table even when there isn't one won't croak.
1779 uint32e_type size
= 4;
1781 bfd_write((PTR
)&size
, 1, sizeof(size
), abfd
);
1790 To write relocations, all the back end does is step though the
1791 canonical relocation table, and create an
1792 @code{internal_reloc}. The symbol index to use is removed from
1793 the @code{offset} field in the symbol table supplied, the
1794 address comes directly from the sum of the section base
1795 address and the relocation offset and the type is dug directly
1796 from the howto field. Then the @code{internal_reloc} is
1797 swapped into the shape of an @code{external_reloc} and written
1803 DEFUN(coff_write_relocs
,(abfd
),
1807 for (s
= abfd
->sections
; s
!= (asection
*) NULL
; s
= s
->next
) {
1809 struct external_reloc dst
;
1811 arelent
**p
= s
->orelocation
;
1812 bfd_seek(abfd
, s
->rel_filepos
, SEEK_SET
);
1813 for (i
= 0; i
< s
->reloc_count
; i
++) {
1814 struct internal_reloc n
;
1816 memset((PTR
)&n
, 0, sizeof(n
));
1818 n
.r_vaddr
= q
->address
+ s
->vma
;
1819 /* The 29k const/consth reloc pair is a real kludge - the consth
1820 part doesn't have a symbol - it has an offset. So rebuilt
1823 if (q
->howto
->type
== R_IHCONST
)
1824 n
.r_symndx
= q
->addend
;
1828 if (q
->sym_ptr_ptr
) {
1829 n
.r_symndx
= get_index((*(q
->sym_ptr_ptr
)));
1830 /* Take notice if the symbol reloc points to a symbol we don't have
1831 in our symbol table. What should we do for this?? */
1832 if (n
.r_symndx
> obj_conv_table_size (abfd
))
1836 /* Work out reloc type from what is required */
1837 SELECT_RELOC(n
.r_type
, q
->howto
);
1839 n
.r_type
= q
->howto
->type
;
1841 coff_swap_reloc_out(abfd
, &n
, &dst
);
1842 bfd_write((PTR
) &dst
, 1, RELSZ
, abfd
);
1846 #endif /* NO_COFF_SYMBOLS */
1848 #ifndef NO_COFF_LINENOS
1851 DEFUN(coff_write_linenumbers
,(abfd
),
1855 for (s
= abfd
->sections
; s
!= (asection
*) NULL
; s
= s
->next
) {
1856 if (s
->lineno_count
) {
1857 asymbol
**q
= abfd
->outsymbols
;
1858 bfd_seek(abfd
, s
->line_filepos
, SEEK_SET
);
1859 /* Find all the linenumbers in this section */
1862 alent
*l
= BFD_SEND(p
->the_bfd
, _get_lineno
, (p
->the_bfd
, p
));
1864 /* Found a linenumber entry, output */
1865 struct internal_lineno out
;
1867 memset( (PTR
)&out
, 0, sizeof(out
));
1869 out
.l_addr
.l_symndx
= l
->u
.offset
;
1870 coff_swap_lineno_out(abfd
, &out
, &buff
);
1871 bfd_write((PTR
) &buff
, 1, LINESZ
, abfd
);
1873 while (l
->line_number
) {
1874 out
.l_lnno
= l
->line_number
;
1875 out
.l_addr
.l_symndx
= l
->u
.offset
;
1876 coff_swap_lineno_out(abfd
, &out
, &buff
);
1877 bfd_write((PTR
) &buff
, 1, LINESZ
, abfd
);
1888 DEFUN(coff_get_lineno
,(ignore_abfd
, symbol
),
1889 bfd
*ignore_abfd AND
1892 return coffsymbol(symbol
)->lineno
;
1895 #endif /* NO_COFF_LINENOS */
1898 coff_make_empty_symbol(abfd
)
1901 coff_symbol_type
*new = (coff_symbol_type
*) bfd_alloc(abfd
, sizeof(coff_symbol_type
));
1903 bfd_error
= no_memory
;
1906 new->symbol
.section
= 0;
1908 new->lineno
= (alent
*) NULL
;
1909 new->done_lineno
= false;
1910 new->symbol
.the_bfd
= abfd
;
1911 return &new->symbol
;
1914 #ifndef NO_COFF_SYMBOLS
1917 DEFUN (coff_make_debug_symbol
, (abfd
, ptr
, sz
),
1922 coff_symbol_type
*new = (coff_symbol_type
*) bfd_alloc(abfd
, sizeof(coff_symbol_type
));
1924 bfd_error
= no_memory
;
1927 /* @@ This shouldn't be using a constant multiplier. */
1928 new->native
= (combined_entry_type
*) bfd_zalloc (abfd
, sizeof (combined_entry_type
) * 10);
1929 new->symbol
.section
= &bfd_debug_section
;
1930 new->lineno
= (alent
*) NULL
;
1931 new->done_lineno
= false;
1932 new->symbol
.the_bfd
= abfd
;
1933 return &new->symbol
;
1937 DEFUN(coff_print_symbol
,(ignore_abfd
, filep
, symbol
, how
),
1938 bfd
*ignore_abfd AND
1941 bfd_print_symbol_type how
)
1943 FILE *file
= (FILE *)filep
;
1945 case bfd_print_symbol_name
:
1946 fprintf(file
, "%s", symbol
->name
);
1948 case bfd_print_symbol_more
:
1949 fprintf(file
, "coff %lx %lx", (unsigned long) coffsymbol(symbol
)->native
,
1950 (unsigned long) coffsymbol(symbol
)->lineno
);
1952 case bfd_print_symbol_nm
:
1955 CONST
char *section_name
= symbol
->section
->name
;
1956 bfd_print_symbol_vandf((PTR
) file
, symbol
);
1959 fprintf(file
, " %-5s %s %s %s",
1961 coffsymbol(symbol
)->native
? "n" : "g",
1962 coffsymbol(symbol
)->lineno
? "l" : " ",
1968 case bfd_print_symbol_all
:
1969 /* Print out the symbols in a reasonable way */
1971 CONST
char *section_name
= symbol
->section
->name
;
1974 if (coffsymbol(symbol
)->native
)
1977 combined_entry_type
*combined
= coffsymbol(symbol
)->native
;
1978 combined_entry_type
*root
= obj_raw_syments(ignore_abfd
);
1980 fprintf(file
,"[%3d]",
1984 fprintf(file
, "(sc %2d)(fl%4x)(ty%3x)(sc%3d) nx(%d) %08x %s",
1985 combined
->u
.syment
.n_scnum
,
1986 combined
->u
.syment
.n_flags
,
1987 combined
->u
.syment
.n_type
,
1988 combined
->u
.syment
.n_sclass
,
1989 combined
->u
.syment
.n_numaux
,
1990 combined
->u
.syment
.n_value
,
1993 for (aux
= 0; aux
< combined
->u
.syment
.n_numaux
; aux
++)
1996 switch (combined
->u
.syment
.n_sclass
) {
1998 fprintf(file
, "File ");
2001 fprintf(file
, "AUX lnno %x size %x tagndx %x",
2002 combined
[aux
+1].u
.auxent
.x_sym
.x_misc
.x_lnsz
.x_lnno
,
2003 combined
[aux
+1].u
.auxent
.x_sym
.x_misc
.x_lnsz
.x_size
,
2004 combined
[aux
+1].u
.auxent
.x_sym
.x_tagndx
.l
);
2012 struct lineno_cache_entry
*l
= coffsymbol(symbol
)->lineno
;
2015 printf("\n%s :", l
->u
.sym
->name
);
2017 while (l
->line_number
)
2019 printf("\n%4d : %x",
2033 bfd_print_symbol_vandf((PTR
) file
, symbol
);
2034 fprintf(file
, " %-5s %s %s %s",
2036 coffsymbol(symbol
)->native
? "n" : "g",
2037 coffsymbol(symbol
)->lineno
? "l" : " ",
2046 #endif /* NO_COFF_SYMBOLS */
2048 /* Set flags and magic number of a coff file from architecture and machine
2049 type. Result is true if we can represent the arch&type, false if not. */
2052 DEFUN(coff_set_flags
,(abfd
, magicp
, flagsp
),
2054 unsigned *magicp AND
2055 unsigned short *flagsp
)
2057 switch (bfd_get_arch(abfd
)) {
2061 switch (bfd_get_mach(abfd
))
2063 case bfd_mach_z8001
:
2066 case bfd_mach_z8002
:
2080 *magicp
= I960ROMAGIC
;
2082 ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC :
2083 I960RWMAGIC); FIXME???
2085 switch (bfd_get_mach(abfd
)) {
2086 case bfd_mach_i960_core
:
2089 case bfd_mach_i960_kb_sb
:
2092 case bfd_mach_i960_mc
:
2095 case bfd_mach_i960_xa
:
2098 case bfd_mach_i960_ca
:
2101 case bfd_mach_i960_ka_sa
:
2114 *magicp
= MIPS_MAGIC_2
;
2120 *magicp
= I386MAGIC
;
2126 *magicp
= MC68MAGIC
;
2133 *magicp
= MC88OMAGIC
;
2138 case bfd_arch_h8300
:
2139 *magicp
= H8300MAGIC
;
2143 #ifdef A29K_MAGIC_BIG
2145 if (abfd
->xvec
->byteorder_big_p
)
2146 *magicp
= A29K_MAGIC_BIG
;
2148 *magicp
= A29K_MAGIC_LITTLE
;
2154 case bfd_arch_we32k
:
2155 *magicp
= WE32KMAGIC
;
2161 case bfd_arch_rs6000
:
2162 *magicp
= U802TOCMAGIC
;
2167 default: /* Unknown architecture */
2168 /* return false; -- fall through to "return false" below, to avoid
2169 "statement never reached" errors on the one below. */
2178 DEFUN(coff_set_arch_mach
,(abfd
, arch
, machine
),
2180 enum bfd_architecture arch AND
2181 unsigned long machine
)
2184 unsigned short dummy2
;
2185 bfd_default_set_arch_mach(abfd
, arch
, machine
);
2187 if (arch
!= bfd_arch_unknown
&&
2188 coff_set_flags(abfd
, &dummy1
, &dummy2
) != true)
2189 return false; /* We can't represent this type */
2190 return true; /* We're easy ... */
2194 /* Calculate the file position for each section. */
2197 DEFUN(coff_compute_section_file_positions
,(abfd
),
2201 asection
*previous
= (asection
*)NULL
;
2202 file_ptr sofar
= FILHSZ
;
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 sofar
+= abfd
->section_count
* SCNHSZ
;
2215 for (current
= abfd
->sections
;
2216 current
!= (asection
*)NULL
;
2217 current
= current
->next
) {
2219 /* Only deal with sections which have contents */
2220 if (!(current
->flags
& SEC_HAS_CONTENTS
))
2223 /* Align the sections in the file to the same boundary on
2224 which they are aligned in virtual memory. I960 doesn't
2225 do this (FIXME) so we can stay in sync with Intel. 960
2226 doesn't yet page from files... */
2229 /* make sure this section is aligned on the right boundary - by
2230 padding the previous section up if necessary */
2233 sofar
= BFD_ALIGN(sofar
, 1 << current
->alignment_power
);
2234 if (previous
!= (asection
*)NULL
) {
2235 previous
->_raw_size
+= sofar
- old_sofar
;
2240 /* FIXME, in demand paged files, the low order bits of the file
2241 offset must match the low order bits of the virtual address.
2242 "Low order" is apparently implementation defined. Add code
2243 here to round sofar up to match the virtual address. */
2245 current
->filepos
= sofar
;
2247 sofar
+= current
->_raw_size
;
2249 /* make sure that this section is of the right size too */
2251 sofar
= BFD_ALIGN(sofar
, 1 << current
->alignment_power
);
2252 current
->_raw_size
+= sofar
- old_sofar
;
2257 obj_relocbase(abfd
) = sofar
;
2260 #ifndef NO_COFF_SYMBOLS
2262 coff_section_symbol (abfd
, name
)
2266 asection
*sec
= bfd_get_section_by_name (abfd
, name
);
2268 combined_entry_type
*csym
;
2272 /* create empty symbol */
2276 if (coff_symbol_from (abfd
, sym
))
2277 csym
= coff_symbol_from (abfd
, sym
)->native
;
2280 /* Make sure back-end COFF stuff is there. */
2284 coff_symbol_type sym
;
2285 /* @@FIXME This shouldn't use a fixed size!! */
2286 combined_entry_type e
[10];
2289 f
= (struct foo
*) bfd_alloc_by_size_t (abfd
, sizeof (*f
));
2290 memset ((char *) f
, 0, sizeof (*f
));
2291 coff_symbol_from (abfd
, sym
)->native
= csym
= f
->e
;
2293 csym
[0].u
.syment
.n_sclass
= C_STAT
;
2294 csym
[0].u
.syment
.n_numaux
= 1;
2295 /* SF_SET_STATICS (sym); @@ ??? */
2298 csym
[1].u
.auxent
.x_scn
.x_scnlen
= sec
->_raw_size
;
2299 csym
[1].u
.auxent
.x_scn
.x_nreloc
= sec
->reloc_count
;
2300 csym
[1].u
.auxent
.x_scn
.x_nlinno
= sec
->lineno_count
;
2304 csym
[1].u
.auxent
.x_scn
.x_scnlen
= 0;
2305 csym
[1].u
.auxent
.x_scn
.x_nreloc
= 0;
2306 csym
[1].u
.auxent
.x_scn
.x_nlinno
= 0;
2311 /* If .file, .text, .data, .bss symbols are missing, add them. */
2312 /* @@ Should we only be adding missing symbols, or overriding the aux
2313 values for existing section symbols? */
2315 coff_add_missing_symbols (abfd
)
2318 unsigned int nsyms
= bfd_get_symcount (abfd
);
2319 asymbol
**sympp
= abfd
->outsymbols
;
2322 int need_text
= 1, need_data
= 1, need_bss
= 1, need_file
= 1;
2323 coff_data_type
*cdata
= coff_data (abfd
);
2325 for (i
= 0; i
< nsyms
; i
++)
2327 coff_symbol_type
*csym
= coff_symbol_from (abfd
, sympp
[i
]);
2331 /* only do this if there is a coff representation of the input
2333 if (csym
->native
&& csym
->native
->u
.syment
.n_sclass
== C_FILE
)
2338 name
= csym
->symbol
.name
;
2341 if (!strcmp (name
, _TEXT
))
2343 else if (!strcmp (name
, _DATA
))
2345 else if (!strcmp (name
, _BSS
))
2349 /* Now i == bfd_get_symcount (abfd). */
2350 /* @@ For now, don't deal with .file symbol. */
2353 if (!need_text
&& !need_data
&& !need_bss
&& !need_file
)
2355 nsyms
+= need_text
+ need_data
+ need_bss
+ need_file
;
2356 sympp2
= (asymbol
**) bfd_alloc_by_size_t (abfd
, nsyms
* sizeof (asymbol
*));
2357 memcpy (sympp2
, sympp
, i
* sizeof (asymbol
*));
2360 /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */
2364 sympp2
[i
++] = coff_section_symbol (abfd
, _TEXT
);
2366 sympp2
[i
++] = coff_section_symbol (abfd
, _DATA
);
2368 sympp2
[i
++] = coff_section_symbol (abfd
, _BSS
);
2369 BFD_ASSERT (i
== nsyms
);
2370 bfd_set_symtab (abfd
, sympp2
, nsyms
);
2372 #endif /* NO_COFF_SYMBOLS */
2377 DEFUN(coff_write_object_contents
,(abfd
),
2383 boolean hasrelocs
= false;
2384 boolean haslinno
= false;
2385 file_ptr reloc_base
;
2386 file_ptr lineno_base
;
2390 unsigned long reloc_size
= 0;
2391 unsigned long lnno_size
= 0;
2392 asection
*text_sec
= NULL
;
2393 asection
*data_sec
= NULL
;
2394 asection
*bss_sec
= NULL
;
2396 struct internal_filehdr internal_f
;
2397 struct internal_aouthdr internal_a
;
2400 bfd_error
= system_call_error
;
2401 /* Number the output sections, starting from one on the first section
2402 with a name which doesn't start with a *.
2403 @@ The code doesn't make this check. Is it supposed to be done,
2406 for (current
= abfd
->sections
; current
!= (asection
*)NULL
;
2407 current
= current
->next
)
2409 current
->target_index
= count
;
2417 if(abfd
->output_has_begun
== false) {
2418 coff_compute_section_file_positions(abfd
);
2421 if (abfd
->sections
!= (asection
*)NULL
) {
2422 scn_base
= abfd
->sections
->filepos
;
2427 if (bfd_seek(abfd
, scn_base
, SEEK_SET
) != 0)
2429 reloc_base
= obj_relocbase(abfd
);
2431 /* Make a pass through the symbol table to count line number entries and
2432 put them into the correct asections */
2434 #ifndef NO_COFF_LINENOS
2435 coff_count_linenumbers(abfd
);
2437 data_base
= scn_base
;
2439 /* Work out the size of the reloc and linno areas */
2441 for (current
= abfd
->sections
; current
!= NULL
; current
=
2444 /* We give section headers to +ve indexes */
2445 if (current
->target_index
> 0)
2448 reloc_size
+= current
->reloc_count
* RELSZ
;
2449 #ifndef NO_COFF_LINENOS
2450 lnno_size
+= current
->lineno_count
* LINESZ
;
2452 data_base
+= SCNHSZ
;
2457 lineno_base
= reloc_base
+ reloc_size
;
2458 sym_base
= lineno_base
+ lnno_size
;
2460 /* Indicate in each section->line_filepos its actual file address */
2461 for (current
= abfd
->sections
; current
!= NULL
; current
=
2464 if (current
->target_index
> 0)
2467 if (current
->lineno_count
) {
2468 current
->line_filepos
= lineno_base
;
2469 current
->moving_line_filepos
= lineno_base
;
2470 #ifndef NO_COFF_LINENOS
2471 lineno_base
+= current
->lineno_count
* LINESZ
;
2475 current
->line_filepos
= 0;
2477 if (current
->reloc_count
) {
2478 current
->rel_filepos
= reloc_base
;
2479 reloc_base
+= current
->reloc_count
* RELSZ
;
2482 current
->rel_filepos
= 0;
2489 /* Write section headers to the file. */
2490 internal_f
.f_nscns
= 0;
2492 (file_ptr
) ((abfd
->flags
& EXEC_P
) ?
2493 (FILHSZ
+ AOUTSZ
) : FILHSZ
),
2498 unsigned int pad
= abfd
->flags
& D_PAGED
? data_base
: 0;
2500 unsigned int pad
= 0;
2502 for (current
= abfd
->sections
;
2504 current
= current
->next
) {
2505 struct internal_scnhdr section
;
2506 if (current
->target_index
> 0)
2508 internal_f
.f_nscns
++;
2509 strncpy(&(section
.s_name
[0]), current
->name
, 8);
2510 section
.s_vaddr
= current
->vma
+ pad
;
2511 section
.s_paddr
= current
->vma
+ pad
;
2512 section
.s_size
= current
->_raw_size
- pad
;
2514 If this section has no size or is unloadable then the scnptr
2517 if (current
->_raw_size
- pad
== 0 ||
2518 (current
->flags
& SEC_LOAD
) == 0) {
2519 section
.s_scnptr
= 0;
2522 section
.s_scnptr
= current
->filepos
;
2524 section
.s_relptr
= current
->rel_filepos
;
2525 section
.s_lnnoptr
= current
->line_filepos
;
2526 section
.s_nreloc
= current
->reloc_count
;
2527 section
.s_nlnno
= current
->lineno_count
;
2528 if (current
->reloc_count
!= 0)
2530 if (current
->lineno_count
!= 0)
2533 section
.s_flags
= sec_to_styp_flags(current
->name
,current
->flags
);
2535 if (!strcmp(current
->name
, _TEXT
)) {
2537 } else if (!strcmp(current
->name
, _DATA
)) {
2539 } else if (!strcmp(current
->name
, _BSS
)) {
2544 section
.s_align
= (current
->alignment_power
2545 ? 1 << current
->alignment_power
2552 coff_swap_scnhdr_out(abfd
, §ion
, &buff
);
2553 bfd_write((PTR
) (&buff
), 1, SCNHSZ
, abfd
);
2563 /* OK, now set up the filehdr... */
2565 /* Don't include the internal abs section in the section count */
2568 We will NOT put a fucking timestamp in the header here. Every time you
2569 put it back, I will come in and take it out again. I'm sorry. This
2570 field does not belong here. We fill it with a 0 so it compares the
2571 same but is not a reasonable time. -- gnu@cygnus.com
2574 Well, I like it, and now we have *customers* who have requested it,
2575 so I'm conditionally compiling it in.
2579 #ifndef NOCOFF_TIMESTAMP
2580 internal_f
.f_timdat
= time(0);
2582 internal_f
.f_timdat
= 0;
2585 if (bfd_get_symcount(abfd
) != 0)
2586 internal_f
.f_symptr
= sym_base
;
2588 internal_f
.f_symptr
= 0;
2590 internal_f
.f_flags
= 0;
2592 if (abfd
->flags
& EXEC_P
)
2593 internal_f
.f_opthdr
= AOUTSZ
;
2595 internal_f
.f_opthdr
= 0;
2598 internal_f
.f_flags
|= F_RELFLG
;
2600 internal_f
.f_flags
|= F_LNNO
;
2601 if (0 == bfd_get_symcount(abfd
))
2602 internal_f
.f_flags
|= F_LSYMS
;
2603 if (abfd
->flags
& EXEC_P
)
2604 internal_f
.f_flags
|= F_EXEC
;
2606 if (!abfd
->xvec
->byteorder_big_p
)
2607 internal_f
.f_flags
|= F_AR32WR
;
2609 internal_f
.f_flags
|= F_AR32W
;
2612 FIXME, should do something about the other byte orders and
2616 /* Set up architecture-dependent stuff */
2618 { unsigned int magic
= 0;
2619 unsigned short flags
= 0;
2620 coff_set_flags(abfd
, &magic
, &flags
);
2621 internal_f
.f_magic
= magic
;
2622 internal_f
.f_flags
|= flags
;
2623 /* ...and the "opt"hdr... */
2626 # ifdef ULTRA3 /* NYU's machine */
2627 /* FIXME: This is a bogus check. I really want to see if there
2628 * is a .shbss or a .shdata section, if so then set the magic
2629 * number to indicate a shared data executable.
2631 if (internal_f
.f_nscns
>= 7)
2632 internal_a
.magic
= SHMAGIC
; /* Shared magic */
2634 # endif /* ULTRA3 */
2635 internal_a
.magic
= NMAGIC
; /* Assume separate i/d */
2636 #define __A_MAGIC_SET__
2639 internal_a
.magic
= (magic
== I960ROMAGIC
? NMAGIC
: OMAGIC
);
2640 #define __A_MAGIC_SET__
2643 #define __A_MAGIC_SET__
2644 internal_a
.magic
= PAGEMAGICBCS
;
2647 #if M68 || MIPS || WE32K
2648 #define __A_MAGIC_SET__
2649 /* Never was anything here for the 68k */
2650 #endif /* M68 || MIPS || WE32K */
2653 # define __A_MAGIC_SET__
2654 internal_a
.magic
= ZMAGIC
;
2658 #define __A_MAGIC_SET__
2659 internal_a
.magic
= (abfd
->flags
& D_PAGED
)? RS6K_AOUTHDR_ZMAGIC
:
2660 (abfd
->flags
& WP_TEXT
)? RS6K_AOUTHDR_NMAGIC
:
2661 RS6K_AOUTHDR_OMAGIC
;
2664 #ifndef __A_MAGIC_SET__
2665 # include "Your aouthdr magic number is not being set!"
2667 # undef __A_MAGIC_SET__
2670 /* Now should write relocs, strings, syms */
2671 obj_sym_filepos(abfd
) = sym_base
;
2673 #ifndef NO_COFF_SYMBOLS
2674 if (bfd_get_symcount(abfd
) != 0) {
2675 coff_add_missing_symbols (abfd
);
2676 coff_renumber_symbols(abfd
);
2677 coff_mangle_symbols(abfd
);
2678 coff_write_symbols(abfd
);
2679 coff_write_linenumbers(abfd
);
2680 coff_write_relocs(abfd
);
2682 #endif /* NO_COFF_SYMBOLS */
2684 internal_a
.tsize
= bfd_get_section_size_before_reloc(text_sec
);
2685 internal_a
.text_start
= internal_a
.tsize
? text_sec
->vma
: 0;
2688 internal_a
.dsize
= bfd_get_section_size_before_reloc(data_sec
);
2689 internal_a
.data_start
= internal_a
.dsize
? data_sec
->vma
: 0;
2692 internal_a
.bsize
= bfd_get_section_size_before_reloc(bss_sec
);
2695 internal_a
.entry
= bfd_get_start_address(abfd
);
2696 internal_f
.f_nsyms
= bfd_get_symcount(abfd
);
2698 /* now write them */
2699 if (bfd_seek(abfd
, 0L, SEEK_SET
) != 0)
2703 coff_swap_filehdr_out(abfd
, (PTR
)&internal_f
, (PTR
)&buff
);
2704 bfd_write((PTR
) &buff
, 1, FILHSZ
, abfd
);
2706 if (abfd
->flags
& EXEC_P
) {
2708 coff_swap_aouthdr_out(abfd
, (PTR
)&internal_a
, (PTR
)&buff
);
2709 bfd_write((PTR
) &buff
, 1, AOUTSZ
, abfd
);
2714 #ifndef NO_COFF_SYMBOLS
2717 this function transforms the offsets into the symbol table into
2718 pointers to syments.
2723 DEFUN(coff_pointerize_aux
,(ignore_abfd
, table_base
, type
, class, auxent
),
2724 bfd
*ignore_abfd AND
2725 combined_entry_type
*table_base AND
2728 combined_entry_type
*auxent
)
2730 /* Don't bother if this is a file or a section */
2731 if (class == C_STAT
&& type
== T_NULL
) return;
2732 if (class == C_FILE
) return;
2734 /* Otherwise patch up */
2735 if (ISFCN(type
) || ISTAG(class) || class == C_BLOCK
) {
2736 auxent
->u
.auxent
.x_sym
.x_fcnary
.x_fcn
.x_endndx
.p
= table_base
+
2737 auxent
->u
.auxent
.x_sym
.x_fcnary
.x_fcn
.x_endndx
.l
;
2738 auxent
->fix_end
= 1;
2740 if (auxent
->u
.auxent
.x_sym
.x_tagndx
.l
!= 0) {
2741 auxent
->u
.auxent
.x_sym
.x_tagndx
.p
=
2742 table_base
+ auxent
->u
.auxent
.x_sym
.x_tagndx
.l
;
2743 auxent
->fix_tag
= 1;
2747 #endif /* NO_COFF_SYMBOLS */
2750 DEFUN(coff_set_section_contents
,(abfd
, section
, location
, offset
, count
),
2755 bfd_size_type count
)
2757 if (abfd
->output_has_begun
== false) /* set by bfd.c handler */
2758 coff_compute_section_file_positions(abfd
);
2760 bfd_seek(abfd
, (file_ptr
) (section
->filepos
+ offset
), SEEK_SET
);
2763 return (bfd_write(location
, 1, count
, abfd
) == count
) ? true : false;
2769 coff_close_and_cleanup(abfd
)
2772 if (!bfd_read_p(abfd
))
2773 switch (abfd
->format
) {
2775 if (!_bfd_write_archive_contents(abfd
))
2779 if (!coff_write_object_contents(abfd
))
2783 bfd_error
= invalid_operation
;
2787 /* We depend on bfd_close to free all the memory on the obstack. */
2788 /* FIXME if bfd_release is not using obstacks! */
2794 buy_and_read(abfd
, where
, seek_direction
, size
)
2800 PTR area
= (PTR
) bfd_alloc(abfd
, size
);
2802 bfd_error
= no_memory
;
2805 bfd_seek(abfd
, where
, seek_direction
);
2806 if (bfd_read(area
, 1, size
, abfd
) != size
) {
2807 bfd_error
= system_call_error
;
2811 } /* buy_and_read() */
2814 #ifndef NO_COFF_SYMBOLS
2817 DEFUN(build_string_table
,(abfd
),
2820 char string_table_size_buffer
[4];
2821 unsigned int string_table_size
;
2824 /* At this point we should be "seek"'d to the end of the
2825 symbols === the symbol table size. */
2826 if (bfd_read((char *) string_table_size_buffer
,
2827 sizeof(string_table_size_buffer
),
2828 1, abfd
) != sizeof(string_table_size
)) {
2829 bfd_error
= system_call_error
;
2833 string_table_size
= bfd_h_get_32(abfd
, (bfd_byte
*) string_table_size_buffer
);
2835 if ((string_table
= (PTR
) bfd_alloc(abfd
, string_table_size
-= 4)) == NULL
) {
2836 bfd_error
= no_memory
;
2838 } /* on mallocation error */
2839 if (bfd_read(string_table
, string_table_size
, 1, abfd
) != string_table_size
) {
2840 bfd_error
= system_call_error
;
2843 return string_table
;
2846 /* Allocate space for the ".debug" section, and read it.
2847 We did not read the debug section until now, because
2848 we didn't want to go to the trouble until someone needed it. */
2851 DEFUN(build_debug_section
,(abfd
),
2854 char *debug_section
;
2857 asection
*sect
= bfd_get_section_by_name (abfd
, ".debug");
2860 bfd_error
= no_debug_section
;
2864 debug_section
= (PTR
) bfd_alloc (abfd
,
2865 bfd_get_section_size_before_reloc (sect
));
2866 if (debug_section
== NULL
) {
2867 bfd_error
= no_memory
;
2871 /* Seek to the beginning of the `.debug' section and read it.
2872 Save the current position first; it is needed by our caller.
2873 Then read debug section and reset the file pointer. */
2875 position
= bfd_tell (abfd
);
2876 bfd_seek (abfd
, sect
->filepos
, SEEK_SET
);
2877 if (bfd_read (debug_section
,
2878 bfd_get_section_size_before_reloc (sect
), 1, abfd
)
2879 != bfd_get_section_size_before_reloc(sect
)) {
2880 bfd_error
= system_call_error
;
2883 bfd_seek (abfd
, position
, SEEK_SET
);
2884 return debug_section
;
2888 /* Return a pointer to a malloc'd copy of 'name'. 'name' may not be
2889 \0-terminated, but will not exceed 'maxlen' characters. The copy *will*
2890 be \0-terminated. */
2892 DEFUN(copy_name
,(abfd
, name
, maxlen
),
2900 for (len
= 0; len
< maxlen
; ++len
) {
2901 if (name
[len
] == '\0') {
2906 if ((newname
= (PTR
) bfd_alloc(abfd
, len
+1)) == NULL
) {
2907 bfd_error
= no_memory
;
2910 strncpy(newname
, name
, len
);
2911 newname
[len
] = '\0';
2916 /* Read a symbol table into freshly bfd_allocated memory, swap it, and
2917 knit the symbol names into a normalized form. By normalized here I
2918 mean that all symbols have an n_offset pointer that points to a null-
2919 terminated string. */
2921 #ifndef SYMNAME_IN_DEBUG
2922 #define SYMNAME_IN_DEBUG(x) 0
2925 static combined_entry_type
*
2926 DEFUN(get_normalized_symtab
,(abfd
),
2929 combined_entry_type
*internal
;
2930 combined_entry_type
*internal_ptr
;
2931 combined_entry_type
*symbol_ptr
;
2932 combined_entry_type
*internal_end
;
2936 char *string_table
= NULL
;
2937 char *debug_section
= NULL
;
2940 unsigned int raw_size
;
2941 if (obj_raw_syments(abfd
) != (combined_entry_type
*)NULL
) {
2942 return obj_raw_syments(abfd
);
2944 if ((size
= bfd_get_symcount(abfd
) * sizeof(combined_entry_type
)) == 0) {
2945 bfd_error
= no_symbols
;
2949 internal
= (combined_entry_type
*)bfd_alloc(abfd
, size
);
2950 internal_end
= internal
+ bfd_get_symcount(abfd
);
2952 raw_size
= bfd_get_symcount(abfd
) * SYMESZ
;
2953 raw
= (SYMENT
*)bfd_alloc(abfd
,raw_size
);
2955 if (bfd_seek(abfd
, obj_sym_filepos(abfd
), SEEK_SET
) == -1
2956 || bfd_read((PTR
)raw
, raw_size
, 1, abfd
) != raw_size
) {
2957 bfd_error
= system_call_error
;
2960 /* mark the end of the symbols */
2961 raw_end
= raw
+ bfd_get_symcount(abfd
);
2963 FIXME SOMEDAY. A string table size of zero is very weird, but
2964 probably possible. If one shows up, it will probably kill us.
2967 /* Swap all the raw entries */
2968 for (raw_src
= raw
, internal_ptr
= internal
;
2970 raw_src
++, internal_ptr
++) {
2973 coff_swap_sym_in(abfd
, (PTR
)raw_src
, (PTR
)&internal_ptr
->u
.syment
);
2974 internal_ptr
->fix_tag
= 0;
2975 internal_ptr
->fix_end
= 0;
2976 symbol_ptr
= internal_ptr
;
2979 i
< symbol_ptr
->u
.syment
.n_numaux
;
2985 internal_ptr
->fix_tag
= 0;
2986 internal_ptr
->fix_end
= 0;
2987 coff_swap_aux_in(abfd
, (char *)(raw_src
),
2988 symbol_ptr
->u
.syment
.n_type
,
2989 symbol_ptr
->u
.syment
.n_sclass
,
2990 &(internal_ptr
->u
.auxent
));
2991 /* Remember that bal entries arn't pointerized */
2992 if (i
!= 1 || symbol_ptr
->u
.syment
.n_sclass
!= C_LEAFPROC
)
2995 coff_pointerize_aux(abfd
,
2997 symbol_ptr
->u
.syment
.n_type
,
2998 symbol_ptr
->u
.syment
.n_sclass
,
3005 /* Free all the raw stuff */
3006 bfd_release(abfd
, raw
);
3008 for (internal_ptr
= internal
; internal_ptr
< internal_end
;
3011 if (internal_ptr
->u
.syment
.n_sclass
== C_FILE
) {
3012 /* make a file symbol point to the name in the auxent, since
3013 the text ".file" is redundant */
3014 if ((internal_ptr
+1)->u
.auxent
.x_file
.x_n
.x_zeroes
== 0) {
3015 /* the filename is a long one, point into the string table */
3016 if (string_table
== NULL
) {
3017 string_table
= build_string_table(abfd
);
3020 internal_ptr
->u
.syment
._n
._n_n
._n_offset
=
3021 (int) (string_table
- 4 +
3022 (internal_ptr
+1)->u
.auxent
.x_file
.x_n
.x_offset
);
3025 /* ordinary short filename, put into memory anyway */
3026 internal_ptr
->u
.syment
._n
._n_n
._n_offset
= (int)
3027 copy_name(abfd
, (internal_ptr
+1)->u
.auxent
.x_file
.x_fname
,
3032 if (internal_ptr
->u
.syment
._n
._n_n
._n_zeroes
!= 0) {
3033 /* This is a "short" name. Make it long. */
3034 unsigned long i
= 0;
3035 char *newstring
= NULL
;
3037 /* find the length of this string without walking into memory
3039 for (i
= 0; i
< 8; ++i
) {
3040 if (internal_ptr
->u
.syment
._n
._n_name
[i
] == '\0') {
3042 } /* if end of string */
3043 } /* possible lengths of this string. */
3045 if ((newstring
= (PTR
) bfd_alloc(abfd
, ++i
)) == NULL
) {
3046 bfd_error
= no_memory
;
3049 memset(newstring
, 0, i
);
3050 strncpy(newstring
, internal_ptr
->u
.syment
._n
._n_name
, i
-1);
3051 internal_ptr
->u
.syment
._n
._n_n
._n_offset
= (int) newstring
;
3052 internal_ptr
->u
.syment
._n
._n_n
._n_zeroes
= 0;
3054 else if (!SYMNAME_IN_DEBUG(&internal_ptr
->u
.syment
)) {
3055 /* Long name already. Point symbol at the string in the table. */
3056 if (string_table
== NULL
) {
3057 string_table
= build_string_table(abfd
);
3059 internal_ptr
->u
.syment
._n
._n_n
._n_offset
= (int)
3060 (string_table
- 4 + internal_ptr
->u
.syment
._n
._n_n
._n_offset
);
3063 /* Long name in debug section. Very similar. */
3064 if (debug_section
== NULL
) {
3065 debug_section
= build_debug_section(abfd
);
3067 internal_ptr
->u
.syment
._n
._n_n
._n_offset
= (int)
3068 (debug_section
+ internal_ptr
->u
.syment
._n
._n_n
._n_offset
);
3071 internal_ptr
+= internal_ptr
->u
.syment
.n_numaux
;
3074 obj_raw_syments(abfd
) = internal
;
3077 } /* get_normalized_symtab() */
3079 #endif /* NO_COFF_SYMBOLS */
3083 DEFUN(section_from_bfd_index
,(abfd
, index
),
3087 struct sec
*answer
= abfd
->sections
;
3091 return &bfd_abs_section
;
3093 if (index
== N_UNDEF
)
3095 return &bfd_und_section
;
3097 if(index
== N_DEBUG
)
3099 return &bfd_debug_section
;
3104 if (answer
->target_index
== index
)
3106 answer
= answer
->next
;
3109 return &bfd_und_section
; /* For gcc -W and lint. Never executed. */
3112 #ifndef NO_COFF_LINENOS
3118 Creating the linenumber table is done by reading in the entire
3119 coff linenumber table, and creating another table for internal use.
3121 A coff line number table is structured so that each function
3122 is marked as having a line number of 0. Each line within the
3123 function is an offset from the first line in the function. The
3124 base of the line number information for the table is stored in
3125 the symbol associated with the function.
3127 The information is copied from the external to the internal
3128 table, and each symbol which marks a function is marked by
3131 How does this work ?
3136 coff_slurp_line_table(abfd
, asect
)
3140 LINENO
*native_lineno
;
3141 alent
*lineno_cache
;
3143 BFD_ASSERT(asect
->lineno
== (alent
*) NULL
);
3145 native_lineno
= (LINENO
*) buy_and_read(abfd
,
3146 asect
->line_filepos
,
3149 asect
->lineno_count
));
3151 (alent
*) bfd_alloc(abfd
, (size_t) ((asect
->lineno_count
+ 1) * sizeof(alent
)));
3152 if (lineno_cache
== NULL
) {
3153 bfd_error
= no_memory
;
3156 unsigned int counter
= 0;
3157 alent
*cache_ptr
= lineno_cache
;
3158 LINENO
*src
= native_lineno
;
3160 while (counter
< asect
->lineno_count
) {
3161 struct internal_lineno dst
;
3162 coff_swap_lineno_in(abfd
, src
, &dst
);
3163 cache_ptr
->line_number
= dst
.l_lnno
;
3165 if (cache_ptr
->line_number
== 0) {
3166 coff_symbol_type
*sym
=
3167 (coff_symbol_type
*) (dst
.l_addr
.l_symndx
3168 + obj_raw_syments(abfd
))->u
.syment
._n
._n_n
._n_zeroes
;
3169 cache_ptr
->u
.sym
= (asymbol
*) sym
;
3170 sym
->lineno
= cache_ptr
;
3173 cache_ptr
->u
.offset
= dst
.l_addr
.l_paddr
3174 - bfd_section_vma(abfd
, asect
);
3175 } /* If no linenumber expect a symbol index */
3181 cache_ptr
->line_number
= 0;
3184 asect
->lineno
= lineno_cache
;
3185 /* FIXME, free native_lineno here, or use alloca or something. */
3187 } /* coff_slurp_line_table() */
3189 #endif /* NO_COFF_LINENOS */
3191 #ifndef NO_COFF_LINENOS
3194 DEFUN(coff_slurp_symbol_table
,(abfd
),
3197 combined_entry_type
*native_symbols
;
3198 coff_symbol_type
*cached_area
;
3199 unsigned int *table_ptr
;
3201 unsigned int number_of_symbols
= 0;
3202 if (obj_symbols(abfd
))
3204 bfd_seek(abfd
, obj_sym_filepos(abfd
), SEEK_SET
);
3206 /* Read in the symbol table */
3207 if ((native_symbols
= get_normalized_symtab(abfd
)) == NULL
) {
3211 /* Allocate enough room for all the symbols in cached form */
3213 (coff_symbol_type
*)
3214 bfd_alloc(abfd
, (size_t) (bfd_get_symcount(abfd
) * sizeof(coff_symbol_type
)));
3216 if (cached_area
== NULL
) {
3217 bfd_error
= no_memory
;
3222 bfd_alloc(abfd
, (size_t) (bfd_get_symcount(abfd
) * sizeof(unsigned int)));
3224 if (table_ptr
== NULL
) {
3225 bfd_error
= no_memory
;
3230 coff_symbol_type
*dst
= cached_area
;
3231 unsigned int last_native_index
= bfd_get_symcount(abfd
);
3232 unsigned int this_index
= 0;
3233 while (this_index
< last_native_index
) {
3234 combined_entry_type
*src
= native_symbols
+ this_index
;
3235 table_ptr
[this_index
] = number_of_symbols
;
3236 dst
->symbol
.the_bfd
= abfd
;
3238 dst
->symbol
.name
= (char *)(src
->u
.syment
._n
._n_n
._n_offset
);
3240 We use the native name field to point to the cached field
3242 src
->u
.syment
._n
._n_n
._n_zeroes
= (int) dst
;
3243 dst
->symbol
.section
= section_from_bfd_index(abfd
,
3244 src
->u
.syment
.n_scnum
);
3245 dst
->symbol
.flags
= 0;
3246 dst
->done_lineno
= false;
3248 switch (src
->u
.syment
.n_sclass
) {
3252 dst
->symbol
.value
= src
->u
.syment
.n_value
- dst
->symbol
.section
->vma
;
3253 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
3254 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
3256 /* Fall through to next case */
3264 if ((src
->u
.syment
.n_scnum
) == 0) {
3265 if ((src
->u
.syment
.n_value
) == 0) {
3266 dst
->symbol
.section
= &bfd_und_section
;
3267 dst
->symbol
.value
= 0;
3270 dst
->symbol
.section
= &bfd_com_section
;
3271 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
3276 Base the value as an index from the base of the
3280 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
3281 dst
->symbol
.value
= src
->u
.syment
.n_value
- dst
->symbol
.section
->vma
;
3283 if (ISFCN((src
->u
.syment
.n_type
))) {
3285 A function ext does not go at the end of a file
3287 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
3294 case C_STAT
: /* static */
3296 case C_LEAFSTAT
: /* static leaf procedure */
3298 case C_LABEL
: /* label */
3299 if (src
->u
.syment
.n_scnum
== -2)
3300 dst
->symbol
.flags
= BSF_DEBUGGING
;
3302 dst
->symbol
.flags
= BSF_LOCAL
;
3304 Base the value as an index from the base of the section, if
3307 if (dst
->symbol
.section
)
3308 dst
->symbol
.value
= (src
->u
.syment
.n_value
) -
3309 dst
->symbol
.section
->vma
;
3311 dst
->symbol
.value
= (src
->u
.syment
.n_value
) ;
3314 case C_MOS
: /* member of structure */
3315 case C_EOS
: /* end of structure */
3316 #ifdef NOTDEF /* C_AUTOARG has the same value */
3318 case C_GLBLREG
: /* A29k-specific storage class */
3321 case C_REGPARM
: /* register parameter */
3322 case C_REG
: /* register variable */
3324 case C_AUTOARG
: /* 960-specific storage class */
3326 case C_TPDEF
: /* type definition */
3328 case C_AUTO
: /* automatic variable */
3329 case C_FIELD
: /* bit field */
3330 case C_ENTAG
: /* enumeration tag */
3331 case C_MOE
: /* member of enumeration */
3332 case C_MOU
: /* member of union */
3333 case C_UNTAG
: /* union tag */
3334 dst
->symbol
.flags
= BSF_DEBUGGING
;
3335 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
3338 case C_FILE
: /* file name */
3339 case C_STRTAG
: /* structure tag */
3341 case C_BINCL
: /* beginning of include file */
3342 case C_EINCL
: /* ending of include file */
3355 dst
->symbol
.flags
= BSF_DEBUGGING
;
3356 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
3359 case C_BLOCK
: /* ".bb" or ".eb" */
3360 case C_FCN
: /* ".bf" or ".ef" */
3361 case C_EFCN
: /* physical end of function */
3362 dst
->symbol
.flags
= BSF_LOCAL
;
3364 Base the value as an index from the base of the section
3366 dst
->symbol
.value
= (src
->u
.syment
.n_value
) - dst
->symbol
.section
->vma
;
3370 case C_EXTDEF
: /* external definition */
3371 case C_ULABEL
: /* undefined label */
3372 case C_USTATIC
: /* undefined static */
3373 case C_LINE
: /* line # reformatted as symbol table entry */
3374 case C_ALIAS
: /* duplicate tag */
3375 case C_HIDDEN
: /* ext symbol in dmert public lib */
3378 fprintf(stderr
,"Unrecognized storage class %d\n",
3379 src
->u
.syment
.n_sclass
);
3381 dst
->symbol
.flags
= BSF_DEBUGGING
;
3382 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
3386 /* BFD_ASSERT(dst->symbol.flags != 0);*/
3390 dst
->symbol
.udata
= 0;
3391 dst
->lineno
= (alent
*) NULL
;
3392 this_index
+= (src
->u
.syment
.n_numaux
) + 1;
3394 number_of_symbols
++;
3395 } /* walk the native symtab */
3396 } /* bfdize the native symtab */
3398 obj_symbols(abfd
) = cached_area
;
3399 obj_raw_syments(abfd
) = native_symbols
;
3401 obj_conv_table_size (abfd
) = bfd_get_symcount (abfd
);
3402 bfd_get_symcount(abfd
) = number_of_symbols
;
3403 obj_convert(abfd
) = table_ptr
;
3404 /* Slurp the line tables for each section too */
3409 coff_slurp_line_table(abfd
, p
);
3414 } /* coff_slurp_symbol_table() */
3417 coff_get_symtab_upper_bound(abfd
)
3420 if (!coff_slurp_symbol_table(abfd
))
3423 return (bfd_get_symcount(abfd
) + 1) * (sizeof(coff_symbol_type
*));
3428 DEFUN(coff_get_symtab
, (abfd
, alocation
),
3430 asymbol
**alocation
)
3432 unsigned int counter
= 0;
3433 coff_symbol_type
*symbase
;
3434 coff_symbol_type
**location
= (coff_symbol_type
**) (alocation
);
3435 if (!coff_slurp_symbol_table(abfd
))
3438 symbase
= obj_symbols(abfd
);
3439 while (counter
< bfd_get_symcount(abfd
))
3441 /* This nasty code looks at the symbol to decide whether or
3442 not it is descibes a constructor/destructor entry point. It
3443 is structured this way to (hopefully) speed non matches */
3445 if (0 && symbase
->symbol
.name
[9] == '$')
3447 bfd_constructor_entry(abfd
,
3448 (asymbol
**)location
,
3449 symbase
->symbol
.name
[10] == 'I' ?
3453 *(location
++) = symbase
++;
3457 return bfd_get_symcount(abfd
);
3460 #endif /* NO_COFF_SYMBOLS */
3463 coff_get_reloc_upper_bound(abfd
, asect
)
3467 if (bfd_get_format(abfd
) != bfd_object
) {
3468 bfd_error
= invalid_operation
;
3471 return (asect
->reloc_count
+ 1) * sizeof(arelent
*);
3478 Coff relocations are easily transformed into the internal BFD form
3481 Reading a coff relocation table is done in the following stages:
3483 o The entire coff relocation table is read into memory.
3485 o Each relocation is processed in turn, first it is swapped from the
3486 external to the internal form.
3488 o The symbol referenced in the relocation's symbol index is
3489 turned intoa pointer into the canonical symbol table. Note
3490 that this table is the same as the one returned by a call to
3491 @code{bfd_canonicalize_symtab}. The back end will call the
3492 routine and save the result if a canonicalization hasn't been done.
3494 o The reloc index is turned into a pointer to a howto
3495 structure, in a back end specific way. For instance, the 386
3496 and 960 use the @code{r_type} to directly produce an index
3497 into a howto table vector; the 88k subtracts a number from the
3498 @code{r_type} field and creates an addend field.
3504 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
3505 if (ptr && ptr->the_bfd == abfd \
3506 && ((ptr->flags & BSF_OLD_COMMON)== 0)) \
3508 cache_ptr->addend = -(ptr->section->vma + ptr->value); \
3511 cache_ptr->addend = 0; \
3516 DEFUN(coff_slurp_reloc_table
,(abfd
, asect
, symbols
),
3521 RELOC
*native_relocs
;
3522 arelent
*reloc_cache
;
3527 if (asect
->relocation
)
3529 if (asect
->reloc_count
== 0)
3531 if (asect
->flags
& SEC_CONSTRUCTOR
)
3533 #ifndef NO_COFF_SYMBOLS
3534 if (!coff_slurp_symbol_table(abfd
))
3538 (RELOC
*) buy_and_read(abfd
,
3542 asect
->reloc_count
));
3543 reloc_cache
= (arelent
*)
3544 bfd_alloc(abfd
, (size_t) (asect
->reloc_count
* sizeof(arelent
)));
3546 if (reloc_cache
== NULL
) {
3547 bfd_error
= no_memory
;
3552 for (idx
= 0; idx
< asect
->reloc_count
; idx
++)
3554 #ifdef RELOC_PROCESSING
3555 struct internal_reloc dst
;
3556 struct external_reloc
*src
;
3558 cache_ptr
= reloc_cache
+ idx
;
3559 src
= native_relocs
+ idx
;
3560 bfd_swap_reloc_in(abfd
, src
, &dst
);
3562 RELOC_PROCESSING(cache_ptr
, &dst
, symbols
, abfd
, asect
);
3564 struct internal_reloc dst
;
3566 struct external_reloc
*src
;
3568 cache_ptr
= reloc_cache
+ idx
;
3569 src
= native_relocs
+ idx
;
3571 bfd_swap_reloc_in(abfd
, src
, &dst
);
3574 cache_ptr
->address
= dst
.r_vaddr
;
3576 if (dst
.r_symndx
!= -1)
3578 /* @@ Should never be greater than count of symbols! */
3579 if (dst
.r_symndx
>= obj_conv_table_size (abfd
))
3581 cache_ptr
->sym_ptr_ptr
= symbols
+ obj_convert(abfd
)[dst
.r_symndx
];
3582 ptr
= *(cache_ptr
->sym_ptr_ptr
);
3586 cache_ptr
->sym_ptr_ptr
= bfd_abs_section
.symbol_ptr_ptr
;
3591 The symbols definitions that we have read in have been
3592 relocated as if their sections started at 0. But the offsets
3593 refering to the symbols in the raw data have not been
3594 modified, so we have to have a negative addend to compensate.
3596 Note that symbols which used to be common must be left alone */
3598 /* Calculate any reloc addend by looking at the symbol */
3599 CALC_ADDEND(abfd
, ptr
, dst
, cache_ptr
);
3601 cache_ptr
->address
-= asect
->vma
;
3602 /* !! cache_ptr->section = (asection *) NULL;*/
3604 /* Fill in the cache_ptr->howto field from dst.r_type */
3605 RTYPE2HOWTO(cache_ptr
, &dst
);
3610 asect
->relocation
= reloc_cache
;
3615 /* This is stupid. This function should be a boolean predicate */
3617 DEFUN(coff_canonicalize_reloc
, (abfd
, section
, relptr
, symbols
),
3620 arelent
**relptr AND
3623 arelent
*tblptr
= section
->relocation
;
3624 unsigned int count
= 0;
3627 if (section
->flags
& SEC_CONSTRUCTOR
)
3629 /* this section has relocs made up by us, they are not in the
3630 file, so take them out of their chain and place them into
3631 the data area provided */
3632 arelent_chain
*chain
= section
->constructor_chain
;
3633 for (count
= 0; count
< section
->reloc_count
; count
++)
3635 *relptr
++ = &chain
->relent
;
3636 chain
= chain
->next
;
3642 coff_slurp_reloc_table(abfd
, section
, symbols
);
3645 tblptr
= section
->relocation
;
3649 for (; count
++ < section
->reloc_count
;)
3650 *relptr
++ = tblptr
++;
3655 return section
->reloc_count
;
3658 #ifndef NO_COFF_SYMBOLS
3661 provided a BFD, a section and an offset into the section, calculate and
3662 return the name of the source file and the line nearest to the wanted
3667 DEFUN(coff_find_nearest_line
,(abfd
,
3675 asection
*section AND
3676 asymbol
**ignore_symbols AND
3678 CONST
char **filename_ptr AND
3679 CONST
char **functionname_ptr AND
3680 unsigned int *line_ptr
)
3682 static bfd
*cache_abfd
;
3683 static asection
*cache_section
;
3684 static bfd_vma cache_offset
;
3685 static unsigned int cache_i
;
3686 static alent
*cache_l
;
3689 coff_data_type
*cof
= coff_data(abfd
);
3690 /* Run through the raw syments if available */
3691 combined_entry_type
*p
;
3693 unsigned int line_base
= 0;
3697 *functionname_ptr
= 0;
3700 /* Don't try and find line numbers in a non coff file */
3701 if (abfd
->xvec
->flavour
!= bfd_target_coff_flavour
)
3707 p
= cof
->raw_syments
;
3709 for (i
= 0; i
< cof
->raw_syment_count
; i
++) {
3710 if (p
->u
.syment
.n_sclass
== C_FILE
) {
3711 /* File name has been moved into symbol */
3712 *filename_ptr
= (char *) p
->u
.syment
._n
._n_n
._n_offset
;
3715 p
+= 1 + p
->u
.syment
.n_numaux
;
3717 /* Now wander though the raw linenumbers of the section */
3719 If this is the same BFD as we were previously called with and this is
3720 the same section, and the offset we want is further down then we can
3721 prime the lookup loop
3723 if (abfd
== cache_abfd
&&
3724 section
== cache_section
&&
3725 offset
>= cache_offset
) {
3731 l
= section
->lineno
;
3734 for (; i
< section
->lineno_count
; i
++) {
3735 if (l
->line_number
== 0) {
3736 /* Get the symbol this line number points at */
3737 coff_symbol_type
*coff
= (coff_symbol_type
*) (l
->u
.sym
);
3738 *functionname_ptr
= coff
->symbol
.name
;
3740 combined_entry_type
*s
= coff
->native
;
3741 s
= s
+ 1 + s
->u
.syment
.n_numaux
;
3743 S should now point to the .bf of the function
3745 if (s
->u
.syment
.n_numaux
) {
3747 The linenumber is stored in the auxent
3749 union internal_auxent
*a
= &((s
+ 1)->u
.auxent
);
3750 line_base
= a
->x_sym
.x_misc
.x_lnsz
.x_lnno
;
3755 if (l
->u
.offset
> offset
)
3757 *line_ptr
= l
->line_number
+ line_base
+ 1;
3763 cache_section
= section
;
3764 cache_offset
= offset
;
3773 coff_sym_filepos(abfd
)
3776 return obj_sym_filepos(abfd
);
3780 #endif /* NO_COFF_SYMBOLS */
3784 DEFUN(coff_sizeof_headers
,(abfd
, reloc
),
3790 if (reloc
== false) {
3791 size
= FILHSZ
+ AOUTSZ
;
3797 size
+= abfd
->section_count
* SCNHSZ
;
3802 DEFUN(get_value
,(reloc
, seclet
),
3804 bfd_seclet_type
*seclet
)
3807 asymbol
*symbol
= *(reloc
->sym_ptr_ptr
);
3808 /* A symbol holds a pointer to a section, and an offset from the
3809 base of the section. To relocate, we find where the section will
3810 live in the output and add that in */
3812 if (symbol
->section
== &bfd_und_section
)
3814 /* Ouch, this is an undefined symbol.. */
3815 bfd_error_vector
.undefined_symbol(reloc
, seclet
);
3816 value
= symbol
->value
;
3820 value
= symbol
->value
+
3821 symbol
->section
->output_offset
+
3822 symbol
->section
->output_section
->vma
;
3826 /* Add the value contained in the relocation */
3827 value
+= (short)((reloc
->addend
) & 0xffff);
3833 DEFUN(perform_slip
,(s
, slip
, input_section
, value
),
3835 unsigned int slip AND
3836 asection
*input_section AND
3840 /* Find all symbols past this point, and make them know
3845 if (p
->section
== input_section
)
3847 /* This was pointing into this section, so mangle it */
3848 if (p
->value
> value
)
3858 DEFUN(movb1
,(input_section
, symbols
, r
, shrink
),
3859 asection
*input_section AND
3860 asymbol
**symbols AND
3862 unsigned int shrink
)
3864 bfd_vma value
= get_value(r
,0);
3866 if (value
>= 0xff00)
3869 /* Change the reloc type from 16bit, possible 8 to 8bit
3871 r
->howto
= r
->howto
+ 1;
3872 /* The place to relc moves back by one */
3875 /* This will be two bytes smaller in the long run */
3877 perform_slip(symbols
, 2, input_section
, r
->address
- shrink
+1);
3885 DEFUN(jmp1
,(input_section
, symbols
, r
, shrink
),
3886 asection
*input_section AND
3887 asymbol
**symbols AND
3889 unsigned int shrink
)
3893 bfd_vma value
= get_value(r
, 0);
3895 bfd_vma dot
= input_section
->output_section
->vma
+
3896 input_section
->output_offset
+ r
->address
;
3899 /* See if the address we're looking at within 127 bytes of where
3900 we are, if so then we can use a small branch rather than the
3901 jump we were going to */
3903 gap
= value
- (dot
- shrink
);
3906 if (-120 < (long)gap
&& (long)gap
< 120 )
3909 /* Change the reloc type from 16bit, possible 8 to 8bit
3911 r
->howto
= r
->howto
+ 1;
3912 /* The place to relc moves back by one */
3915 /* This will be two bytes smaller in the long run */
3917 perform_slip(symbols
, 2, input_section
, r
->address
-shrink
+1);
3925 DEFUN(bfd_coff_relax_section
,(abfd
, i
, symbols
),
3931 /* Get enough memory to hold the stuff */
3932 bfd
*input_bfd
= i
->owner
;
3933 asection
*input_section
= i
;
3935 boolean
new = false;
3937 bfd_size_type reloc_size
= bfd_get_reloc_upper_bound(input_bfd
,
3939 arelent
**reloc_vector
= (arelent
**)bfd_xmalloc(reloc_size
);
3941 /* Get the relocs and think about them */
3942 if (bfd_canonicalize_reloc(input_bfd
,
3948 for (parent
= reloc_vector
; *parent
; parent
++)
3950 arelent
*r
= *parent
;
3951 switch (r
->howto
->type
) {
3959 shrink
= movb1(input_section
, symbols
, r
, shrink
);
3964 shrink
= jmp1(input_section
, symbols
, r
, shrink
);
3972 input_section
->_cooked_size
-= shrink
;
3973 free((char *)reloc_vector
);
3978 DEFUN(bfd_coff_get_relocated_section_contents
,(in_abfd
, seclet
, data
),
3980 bfd_seclet_type
*seclet AND
3984 /* Get enough memory to hold the stuff */
3985 bfd
*input_bfd
= seclet
->u
.indirect
.section
->owner
;
3986 asection
*input_section
= seclet
->u
.indirect
.section
;
3987 bfd_size_type reloc_size
= bfd_get_reloc_upper_bound(input_bfd
,
3989 arelent
**reloc_vector
= (arelent
**)bfd_xmalloc(reloc_size
);
3991 /* read in the section */
3992 bfd_get_section_contents(input_bfd
,
3996 input_section
->_raw_size
);
3999 if (bfd_canonicalize_reloc(input_bfd
,
4002 seclet
->u
.indirect
.symbols
) )
4004 arelent
**parent
= reloc_vector
;
4009 unsigned int dst_address
= 0;
4010 unsigned int src_address
= 0;
4014 /* Find how long a run we can do */
4015 while (dst_address
< seclet
->size
)
4021 /* Note that the relaxing didn't tie up the addresses in the
4022 relocation, so we use the original address to work out the
4023 run of non-relocated data */
4024 run
= reloc
->address
- src_address
;
4030 run
= seclet
->size
- dst_address
;
4032 /* Copy the bytes */
4033 for (idx
= 0; idx
< run
; idx
++)
4035 data
[dst_address
++] = data
[src_address
++];
4038 /* Now do the relocation */
4042 switch (reloc
->howto
->type
)
4045 /* Speciial relaxed type */
4047 bfd_vma dot
= seclet
->offset
+ dst_address
+ seclet
->u
.indirect
.section
->output_section
->vma
;
4048 int gap
= get_value(reloc
,seclet
)-dot
-1;
4049 if ((gap
& ~0xff ) != 0 &&((gap
& 0xff00)!= 0xff00)) abort();
4051 bfd_put_8(in_abfd
,gap
, data
+dst_address
);
4053 switch (data
[dst_address
-1])
4058 bfd_put_8(in_abfd
, 0x55, data
+dst_address
-1);
4062 bfd_put_8(in_abfd
, 0x40, data
+dst_address
-1);
4081 /* Special relaxed type, there will be a gap between where we
4082 get stuff from and where we put stuff to now
4084 for a mov.b @aa:16 -> mov.b @aa:8
4085 opcode 0x6a 0x0y offset
4088 if (data
[dst_address
-1] != 0x6a)
4090 switch (data
[src_address
] & 0xf0)
4094 data
[dst_address
-1] = (data
[src_address
] & 0xf) | 0x20;
4098 data
[dst_address
-1] = (data
[src_address
] & 0xf) | 0x30;
4104 /* the offset must fit ! after all, what was all the relaxing
4107 bfd_put_8(in_abfd
, get_value(reloc
, seclet
), data
+ dst_address
);
4109 /* Note the magic - src goes up by two bytes, but dst by only
4118 bfd_vma dot
= seclet
->offset
+ dst_address
+ seclet
->u
.indirect
.section
->output_section
->vma
;
4119 int gap
= get_value(reloc
,seclet
)-dot
;
4120 if (gap
> 127 || gap
< -128)
4122 bfd_error_vector
.reloc_value_truncated(reloc
, seclet
);
4125 bfd_put_8(in_abfd
,gap
, data
+dst_address
);
4134 unsigned int gap
=get_value(reloc
,seclet
);
4135 if (gap
> 0xff && gap
< ~0xff)
4137 bfd_error_vector
.reloc_value_truncated(reloc
, seclet
);
4140 bfd_put_8(in_abfd
, gap
, data
+dst_address
);
4148 /* A relword which would have like to have been a pcrel */
4150 /* A relword which would like to have been modified but
4153 bfd_put_16(in_abfd
, get_value(reloc
,seclet
), data
+dst_address
);
4168 free((char *)reloc_vector
);
4174 #define coff_core_file_failing_command _bfd_dummy_core_file_failing_command
4175 #define coff_core_file_failing_signal _bfd_dummy_core_file_failing_signal
4176 #define coff_core_file_matches_executable_p _bfd_dummy_core_file_matches_executable_p
4177 #define coff_slurp_armap bfd_slurp_coff_armap
4178 #define coff_slurp_extended_name_table _bfd_slurp_extended_name_table
4179 #define coff_truncate_arname bfd_dont_truncate_arname
4180 #define coff_openr_next_archived_file bfd_generic_openr_next_archived_file
4181 #define coff_generic_stat_arch_elt bfd_generic_stat_arch_elt
4182 #define coff_get_section_contents bfd_generic_get_section_contents
4183 #define coff_close_and_cleanup bfd_generic_close_and_cleanup
4185 #define coff_bfd_debug_info_start bfd_void
4186 #define coff_bfd_debug_info_end bfd_void
4187 #define coff_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
4188 #define coff_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
4189 #define coff_bfd_relax_section bfd_generic_relax_section