1 /* Support for the generic parts of most COFF variants, for BFD.
2 Copyright 1990, 1991, 1992 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
);
347 } else if (!strcmp(sec_name
, ".data2")) {
348 return((long)STYP_DATA
);
349 #endif /* TWO_DATA_SECS */
350 } else if (!strcmp(sec_name
, _BSS
)) {
351 return((long)STYP_BSS
);
353 } else if (!strcmp(sec_name
, _COMMENT
)) {
354 return((long)STYP_INFO
);
355 #endif /* _COMMENT */
357 } else if (!strcmp(sec_name
, _LIB
)) {
358 return((long)STYP_LIB
);
362 /* Try and figure out what it should be */
363 if (sec_flags
& SEC_CODE
) styp_flags
= STYP_TEXT
;
364 if (sec_flags
& SEC_DATA
) styp_flags
= STYP_DATA
;
365 else if (sec_flags
& SEC_READONLY
)
366 #ifdef STYP_LIT /* 29k readonly text/data section */
367 styp_flags
= STYP_LIT
;
369 styp_flags
= STYP_TEXT
;
370 #endif /* STYP_LIT */
371 else if (sec_flags
& SEC_LOAD
) styp_flags
= STYP_TEXT
;
373 if (styp_flags
== 0) styp_flags
= STYP_BSS
;
376 if (sec_flags
& SEC_NEVER_LOAD
)
377 styp_flags
|= STYP_NOLOAD
;
383 * Return a word with SEC_* flags set to represent the incoming
384 * STYP_* flags (from scnhdr.s_flags). The inverse of this
385 * function is sec_to_styp_flags().
386 * NOTE: If you add to/change this routine, you should mirror the changes
387 * in sec_to_styp_flags().
390 DEFUN(styp_to_sec_flags
, (styp_flags
),
393 flagword sec_flags
=0;
396 if (styp_flags
& STYP_NOLOAD
)
398 sec_flags
|= SEC_NEVER_LOAD
;
400 #endif /* STYP_NOLOAD */
402 if ((styp_flags
& STYP_TEXT
) || (styp_flags
& STYP_DATA
))
404 sec_flags
|= SEC_LOAD
| SEC_ALLOC
;
406 else if (styp_flags
& STYP_BSS
)
408 sec_flags
|= SEC_ALLOC
;
410 else if (styp_flags
& STYP_INFO
)
412 sec_flags
|= SEC_NEVER_LOAD
;
416 sec_flags
|= SEC_ALLOC
| SEC_LOAD
;
419 #ifdef STYP_LIT /* A29k readonly text/data section type */
420 if ((styp_flags
& STYP_LIT
) == STYP_LIT
)
422 sec_flags
= (SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
);
424 #endif /* STYP_LIT */
425 #ifdef STYP_OTHER_LOAD /* Other loaded sections */
426 if (styp_flags
& STYP_OTHER_LOAD
)
428 sec_flags
= (SEC_LOAD
| SEC_ALLOC
);
430 #endif /* STYP_SDATA */
435 #define get_index(symbol) ((int) (symbol)->udata)
436 #define set_index(symbol, idx) ((symbol)->udata =(PTR) (idx))
438 /* **********************************************************************
439 Here are all the routines for swapping the structures seen in the
440 outside world into the internal forms.
445 DEFUN(bfd_swap_reloc_in
,(abfd
, reloc_src
, reloc_dst
),
448 struct internal_reloc
*reloc_dst
)
450 reloc_dst
->r_vaddr
= bfd_h_get_32(abfd
, (bfd_byte
*)reloc_src
->r_vaddr
);
451 reloc_dst
->r_symndx
= bfd_h_get_32(abfd
, (bfd_byte
*) reloc_src
->r_symndx
);
454 reloc_dst
->r_type
= bfd_h_get_8(abfd
, reloc_src
->r_type
);
455 reloc_dst
->r_size
= bfd_h_get_8(abfd
, reloc_src
->r_size
);
457 reloc_dst
->r_type
= bfd_h_get_16(abfd
, (bfd_byte
*) reloc_src
->r_type
);
460 #ifdef SWAP_IN_RELOC_OFFSET
461 reloc_dst
->r_offset
= SWAP_IN_RELOC_OFFSET(abfd
,
462 (bfd_byte
*) reloc_src
->r_offset
);
468 DEFUN(coff_swap_reloc_out
,(abfd
, src
, dst
),
473 struct internal_reloc
*reloc_src
= (struct internal_reloc
*)src
;
474 struct external_reloc
*reloc_dst
= (struct external_reloc
*)dst
;
475 bfd_h_put_32(abfd
, reloc_src
->r_vaddr
, (bfd_byte
*) reloc_dst
->r_vaddr
);
476 bfd_h_put_32(abfd
, reloc_src
->r_symndx
, (bfd_byte
*) reloc_dst
->r_symndx
);
477 bfd_h_put_16(abfd
, reloc_src
->r_type
, (bfd_byte
*)
480 #ifdef SWAP_OUT_RELOC_OFFSET
481 SWAP_OUT_RELOC_OFFSET(abfd
,
483 (bfd_byte
*) reloc_dst
->r_offset
);
485 #ifdef SWAP_OUT_RELOC_EXTRA
486 SWAP_OUT_RELOC_EXTRA(abfd
,reloc_src
, reloc_dst
);
489 return sizeof(struct external_reloc
);
493 DEFUN(bfd_swap_filehdr_in
,(abfd
, filehdr_src
, filehdr_dst
),
495 FILHDR
*filehdr_src AND
496 struct internal_filehdr
*filehdr_dst
)
498 filehdr_dst
->f_magic
= bfd_h_get_16(abfd
, (bfd_byte
*) filehdr_src
->f_magic
);
499 filehdr_dst
->f_nscns
= bfd_h_get_16(abfd
, (bfd_byte
*)filehdr_src
-> f_nscns
);
500 filehdr_dst
->f_timdat
= bfd_h_get_32(abfd
, (bfd_byte
*)filehdr_src
-> f_timdat
);
501 filehdr_dst
->f_symptr
= bfd_h_get_32(abfd
, (bfd_byte
*)filehdr_src
-> f_symptr
);
502 filehdr_dst
->f_nsyms
= bfd_h_get_32(abfd
, (bfd_byte
*)filehdr_src
-> f_nsyms
);
503 filehdr_dst
->f_opthdr
= bfd_h_get_16(abfd
, (bfd_byte
*)filehdr_src
-> f_opthdr
);
504 filehdr_dst
->f_flags
= bfd_h_get_16(abfd
, (bfd_byte
*)filehdr_src
-> f_flags
);
508 DEFUN(coff_swap_filehdr_out
,(abfd
, in
, out
),
513 struct internal_filehdr
*filehdr_in
= (struct internal_filehdr
*)in
;
514 FILHDR
*filehdr_out
= (FILHDR
*)out
;
515 bfd_h_put_16(abfd
, filehdr_in
->f_magic
, (bfd_byte
*) filehdr_out
->f_magic
);
516 bfd_h_put_16(abfd
, filehdr_in
->f_nscns
, (bfd_byte
*) filehdr_out
->f_nscns
);
517 bfd_h_put_32(abfd
, filehdr_in
->f_timdat
, (bfd_byte
*) filehdr_out
->f_timdat
);
518 bfd_h_put_32(abfd
, filehdr_in
->f_symptr
, (bfd_byte
*) filehdr_out
->f_symptr
);
519 bfd_h_put_32(abfd
, filehdr_in
->f_nsyms
, (bfd_byte
*) filehdr_out
->f_nsyms
);
520 bfd_h_put_16(abfd
, filehdr_in
->f_opthdr
, (bfd_byte
*) filehdr_out
->f_opthdr
);
521 bfd_h_put_16(abfd
, filehdr_in
->f_flags
, (bfd_byte
*) filehdr_out
->f_flags
);
522 return sizeof(FILHDR
);
526 #ifndef NO_COFF_SYMBOLS
529 DEFUN(coff_swap_sym_in
,(abfd
, ext1
, in1
),
534 SYMENT
*ext
= (SYMENT
*)ext1
;
535 struct internal_syment
*in
= (struct internal_syment
*)in1
;
537 if( ext
->e
.e_name
[0] == 0) {
538 in
->_n
._n_n
._n_zeroes
= 0;
539 in
->_n
._n_n
._n_offset
= bfd_h_get_32(abfd
, (bfd_byte
*) ext
->e
.e
.e_offset
);
542 #if SYMNMLEN != E_SYMNMLEN
543 -> Error
, we need to cope with truncating
or extending SYMNMLEN
!;
545 memcpy(in
->_n
._n_name
, ext
->e
.e_name
, SYMNMLEN
);
548 in
->n_value
= bfd_h_get_32(abfd
, (bfd_byte
*) ext
->e_value
);
549 in
->n_scnum
= bfd_h_get_16(abfd
, (bfd_byte
*) ext
->e_scnum
);
550 if (sizeof(ext
->e_type
) == 2){
551 in
->n_type
= bfd_h_get_16(abfd
, (bfd_byte
*) ext
->e_type
);
554 in
->n_type
= bfd_h_get_32(abfd
, (bfd_byte
*) ext
->e_type
);
556 in
->n_sclass
= bfd_h_get_8(abfd
, ext
->e_sclass
);
557 in
->n_numaux
= bfd_h_get_8(abfd
, ext
->e_numaux
);
561 DEFUN(coff_swap_sym_out
,(abfd
, inp
, extp
),
566 struct internal_syment
*in
= (struct internal_syment
*)inp
;
567 SYMENT
*ext
=(SYMENT
*)extp
;
568 if(in
->_n
._n_name
[0] == 0) {
569 bfd_h_put_32(abfd
, 0, (bfd_byte
*) ext
->e
.e
.e_zeroes
);
570 bfd_h_put_32(abfd
, in
->_n
._n_n
._n_offset
, (bfd_byte
*) ext
->e
.e
.e_offset
);
573 #if SYMNMLEN != E_SYMNMLEN
574 -> Error
, we need to cope with truncating
or extending SYMNMLEN
!;
576 memcpy(ext
->e
.e_name
, in
->_n
._n_name
, SYMNMLEN
);
579 bfd_h_put_32(abfd
, in
->n_value
, (bfd_byte
*) ext
->e_value
);
580 bfd_h_put_16(abfd
, in
->n_scnum
, (bfd_byte
*) ext
->e_scnum
);
581 if (sizeof(ext
->e_type
) == 2)
583 bfd_h_put_16(abfd
, in
->n_type
, (bfd_byte
*) ext
->e_type
);
587 bfd_h_put_32(abfd
, in
->n_type
, (bfd_byte
*) ext
->e_type
);
589 bfd_h_put_8(abfd
, in
->n_sclass
, ext
->e_sclass
);
590 bfd_h_put_8(abfd
, in
->n_numaux
, ext
->e_numaux
);
591 return sizeof(SYMENT
);
595 DEFUN(coff_swap_aux_in
,(abfd
, ext1
, type
, class, in1
),
602 AUXENT
*ext
= (AUXENT
*)ext1
;
603 union internal_auxent
*in
= (union internal_auxent
*)in1
;
607 if (ext
->x_file
.x_fname
[0] == 0) {
608 in
->x_file
.x_n
.x_zeroes
= 0;
609 in
->x_file
.x_n
.x_offset
=
610 bfd_h_get_32(abfd
, (bfd_byte
*) ext
->x_file
.x_n
.x_offset
);
612 #if FILNMLEN != E_FILNMLEN
613 -> Error
, we need to cope with truncating
or extending FILNMLEN
!;
615 memcpy (in
->x_file
.x_fname
, ext
->x_file
.x_fname
, FILNMLEN
);
620 /* RS/6000 "csect" auxents */
624 in
->x_csect
.x_scnlen
= bfd_h_get_32 (abfd
, (bfd_byte
*) ext
->x_csect
.x_scnlen
);
625 in
->x_csect
.x_parmhash
= bfd_h_get_32 (abfd
, (bfd_byte
*) ext
->x_csect
.x_parmhash
);
626 in
->x_csect
.x_snhash
= bfd_h_get_16 (abfd
, (bfd_byte
*) ext
->x_csect
.x_snhash
);
627 /* We don't have to hack bitfields in x_smtyp because it's defined by
628 shifts-and-ands, which are equivalent on all byte orders. */
629 in
->x_csect
.x_smtyp
= bfd_h_get_8 (abfd
, (bfd_byte
*) ext
->x_csect
.x_smtyp
);
630 in
->x_csect
.x_smclas
= bfd_h_get_8 (abfd
, (bfd_byte
*) ext
->x_csect
.x_smclas
);
631 in
->x_csect
.x_stab
= bfd_h_get_32 (abfd
, (bfd_byte
*) ext
->x_csect
.x_stab
);
632 in
->x_csect
.x_snstab
= bfd_h_get_16 (abfd
, (bfd_byte
*) ext
->x_csect
.x_snstab
);
641 if (type
== T_NULL
) {
642 in
->x_scn
.x_scnlen
= GET_SCN_SCNLEN(abfd
, ext
);
643 in
->x_scn
.x_nreloc
= GET_SCN_NRELOC(abfd
, ext
);
644 in
->x_scn
.x_nlinno
= GET_SCN_NLINNO(abfd
, ext
);
648 in
->x_sym
.x_tagndx
.l
= bfd_h_get_32(abfd
, (bfd_byte
*) ext
->x_sym
.x_tagndx
);
650 in
->x_sym
.x_tvndx
= bfd_h_get_16(abfd
, (bfd_byte
*) ext
->x_sym
.x_tvndx
);
654 #if DIMNUM != E_DIMNUM
655 -> Error
, we need to cope with truncating
or extending DIMNUM
!;
657 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]);
658 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]);
659 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]);
660 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]);
663 if (class == C_BLOCK
|| ISFCN(type
) || ISTAG(type
)) {
664 in
->x_sym
.x_fcnary
.x_fcn
.x_lnnoptr
= GET_FCN_LNNOPTR(abfd
, ext
);
665 in
->x_sym
.x_fcnary
.x_fcn
.x_endndx
.l
= GET_FCN_ENDNDX(abfd
, ext
);
669 in
->x_sym
.x_misc
.x_fsize
= bfd_h_get_32(abfd
, (bfd_byte
*) ext
->x_sym
.x_misc
.x_fsize
);
672 in
->x_sym
.x_misc
.x_lnsz
.x_lnno
= GET_LNSZ_LNNO(abfd
, ext
);
673 in
->x_sym
.x_misc
.x_lnsz
.x_size
= GET_LNSZ_SIZE(abfd
, ext
);
679 DEFUN(coff_swap_aux_out
,(abfd
, inp
, type
, class, extp
),
686 union internal_auxent
*in
= (union internal_auxent
*)inp
;
687 AUXENT
*ext
= (AUXENT
*)extp
;
689 memset((PTR
)ext
, 0, AUXESZ
);
692 if (in
->x_file
.x_fname
[0] == 0) {
693 PUTWORD(abfd
, 0, (bfd_byte
*) ext
->x_file
.x_n
.x_zeroes
);
695 in
->x_file
.x_n
.x_offset
,
696 (bfd_byte
*) ext
->x_file
.x_n
.x_offset
);
699 #if FILNMLEN != E_FILNMLEN
700 -> Error
, we need to cope with truncating
or extending FILNMLEN
!;
702 memcpy (ext
->x_file
.x_fname
, in
->x_file
.x_fname
, FILNMLEN
);
708 /* RS/6000 "csect" auxents */
711 PUTWORD (abfd
, in
->x_csect
.x_scnlen
, ext
->x_csect
.x_scnlen
);
712 PUTWORD (abfd
, in
->x_csect
.x_parmhash
, ext
->x_csect
.x_parmhash
);
713 PUTHALF (abfd
, in
->x_csect
.x_snhash
, ext
->x_csect
.x_snhash
);
714 /* We don't have to hack bitfields in x_smtyp because it's defined by
715 shifts-and-ands, which are equivalent on all byte orders. */
716 PUTBYTE (abfd
, in
->x_csect
.x_smtyp
, ext
->x_csect
.x_smtyp
);
717 PUTBYTE (abfd
, in
->x_csect
.x_smclas
, ext
->x_csect
.x_smclas
);
718 PUTWORD (abfd
, in
->x_csect
.x_stab
, ext
->x_csect
.x_stab
);
719 PUTHALF (abfd
, in
->x_csect
.x_snstab
, ext
->x_csect
.x_snstab
);
728 if (type
== T_NULL
) {
729 PUT_SCN_SCNLEN(abfd
, in
->x_scn
.x_scnlen
, ext
);
730 PUT_SCN_NRELOC(abfd
, in
->x_scn
.x_nreloc
, ext
);
731 PUT_SCN_NLINNO(abfd
, in
->x_scn
.x_nlinno
, ext
);
735 PUTWORD(abfd
, in
->x_sym
.x_tagndx
.l
, (bfd_byte
*) ext
->x_sym
.x_tagndx
);
737 bfd_h_put_16(abfd
, in
->x_sym
.x_tvndx
, (bfd_byte
*) ext
->x_sym
.x_tvndx
);
740 if (class == C_BLOCK
|| ISFCN(type
) || ISTAG(type
)) {
741 PUT_FCN_LNNOPTR(abfd
, in
->x_sym
.x_fcnary
.x_fcn
.x_lnnoptr
, ext
);
742 PUT_FCN_ENDNDX(abfd
, in
->x_sym
.x_fcnary
.x_fcn
.x_endndx
.l
, ext
);
746 PUTWORD(abfd
, in
->x_sym
.x_misc
.x_fsize
, (bfd_byte
*) ext
->x_sym
.x_misc
.x_fsize
);
750 #if DIMNUM != E_DIMNUM
751 -> Error
, we need to cope with truncating
or extending DIMNUM
!;
753 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]);
754 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]);
755 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]);
756 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]);
759 PUT_LNSZ_LNNO(abfd
, in
->x_sym
.x_misc
.x_lnsz
.x_lnno
, ext
);
760 PUT_LNSZ_SIZE(abfd
, in
->x_sym
.x_misc
.x_lnsz
.x_size
, ext
);
763 return sizeof(AUXENT
);
766 #endif /* NO_COFF_SYMBOLS */
768 #ifndef NO_COFF_LINENOS
771 DEFUN(coff_swap_lineno_in
,(abfd
, ext1
, in1
),
776 LINENO
*ext
= (LINENO
*)ext1
;
777 struct internal_lineno
*in
= (struct internal_lineno
*)in1
;
779 in
->l_addr
.l_symndx
= bfd_h_get_32(abfd
, (bfd_byte
*) ext
->l_addr
.l_symndx
);
780 in
->l_lnno
= GET_LINENO_LNNO(abfd
, ext
);
784 DEFUN(coff_swap_lineno_out
,(abfd
, inp
, outp
),
789 struct internal_lineno
*in
= (struct internal_lineno
*)inp
;
790 struct external_lineno
*ext
= (struct external_lineno
*)outp
;
791 PUTWORD(abfd
, in
->l_addr
.l_symndx
, (bfd_byte
*)
792 ext
->l_addr
.l_symndx
);
794 PUT_LINENO_LNNO (abfd
, in
->l_lnno
, ext
);
795 return sizeof(struct external_lineno
);
798 #endif /* NO_COFF_LINENOS */
802 DEFUN(bfd_swap_aouthdr_in
,(abfd
, aouthdr_ext1
, aouthdr_int1
),
807 AOUTHDR
*aouthdr_ext
= (AOUTHDR
*) aouthdr_ext1
;
808 struct internal_aouthdr
*aouthdr_int
= (struct internal_aouthdr
*)aouthdr_int1
;
810 aouthdr_int
->magic
= bfd_h_get_16(abfd
, (bfd_byte
*) aouthdr_ext
->magic
);
811 aouthdr_int
->vstamp
= bfd_h_get_16(abfd
, (bfd_byte
*) aouthdr_ext
->vstamp
);
812 aouthdr_int
->tsize
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->tsize
);
813 aouthdr_int
->dsize
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->dsize
);
814 aouthdr_int
->bsize
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->bsize
);
815 aouthdr_int
->entry
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->entry
);
816 aouthdr_int
->text_start
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->text_start
);
817 aouthdr_int
->data_start
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->data_start
);
819 aouthdr_int
->tagentries
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->tagentries
);
823 aouthdr_int
->o_toc
= bfd_h_get_32(abfd
, aouthdr_ext
->o_toc
);
824 aouthdr_int
->o_snentry
= bfd_h_get_16(abfd
, aouthdr_ext
->o_snentry
);
825 aouthdr_int
->o_sntext
= bfd_h_get_16(abfd
, aouthdr_ext
->o_sntext
);
826 aouthdr_int
->o_sndata
= bfd_h_get_16(abfd
, aouthdr_ext
->o_sndata
);
827 aouthdr_int
->o_sntoc
= bfd_h_get_16(abfd
, aouthdr_ext
->o_sntoc
);
828 aouthdr_int
->o_snloader
= bfd_h_get_16(abfd
, aouthdr_ext
->o_snloader
);
829 aouthdr_int
->o_snbss
= bfd_h_get_16(abfd
, aouthdr_ext
->o_snbss
);
830 aouthdr_int
->o_algntext
= bfd_h_get_16(abfd
, aouthdr_ext
->o_algntext
);
831 aouthdr_int
->o_algndata
= bfd_h_get_16(abfd
, aouthdr_ext
->o_algndata
);
832 aouthdr_int
->o_modtype
= bfd_h_get_16(abfd
, aouthdr_ext
->o_modtype
);
833 aouthdr_int
->o_maxstack
= bfd_h_get_32(abfd
, aouthdr_ext
->o_maxstack
);
838 DEFUN(coff_swap_aouthdr_out
,(abfd
, in
, out
),
843 struct internal_aouthdr
*aouthdr_in
= (struct internal_aouthdr
*)in
;
844 AOUTHDR
*aouthdr_out
= (AOUTHDR
*)out
;
845 bfd_h_put_16(abfd
, aouthdr_in
->magic
, (bfd_byte
*) aouthdr_out
->magic
);
846 bfd_h_put_16(abfd
, aouthdr_in
->vstamp
, (bfd_byte
*) aouthdr_out
->vstamp
);
847 bfd_h_put_32(abfd
, aouthdr_in
->tsize
, (bfd_byte
*) aouthdr_out
->tsize
);
848 bfd_h_put_32(abfd
, aouthdr_in
->dsize
, (bfd_byte
*) aouthdr_out
->dsize
);
849 bfd_h_put_32(abfd
, aouthdr_in
->bsize
, (bfd_byte
*) aouthdr_out
->bsize
);
850 bfd_h_put_32(abfd
, aouthdr_in
->entry
, (bfd_byte
*) aouthdr_out
->entry
);
851 bfd_h_put_32(abfd
, aouthdr_in
->text_start
,
852 (bfd_byte
*) aouthdr_out
->text_start
);
853 bfd_h_put_32(abfd
, aouthdr_in
->data_start
, (bfd_byte
*) aouthdr_out
->data_start
);
855 bfd_h_put_32(abfd
, aouthdr_in
->tagentries
, (bfd_byte
*) aouthdr_out
->tagentries
);
857 return sizeof(AOUTHDR
);
861 DEFUN(coff_swap_scnhdr_in
,(abfd
, scnhdr_ext
, scnhdr_int
),
863 SCNHDR
*scnhdr_ext AND
864 struct internal_scnhdr
*scnhdr_int
)
866 memcpy(scnhdr_int
->s_name
, scnhdr_ext
->s_name
, sizeof(scnhdr_int
->s_name
));
867 scnhdr_int
->s_vaddr
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_vaddr
);
868 scnhdr_int
->s_paddr
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_paddr
);
869 scnhdr_int
->s_size
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_size
);
871 scnhdr_int
->s_scnptr
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_scnptr
);
872 scnhdr_int
->s_relptr
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_relptr
);
873 scnhdr_int
->s_lnnoptr
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_lnnoptr
);
874 scnhdr_int
->s_flags
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_flags
);
876 scnhdr_int
->s_nreloc
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_nreloc
);
877 scnhdr_int
->s_nlnno
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_nlnno
);
879 scnhdr_int
->s_nreloc
= bfd_h_get_16(abfd
, (bfd_byte
*) scnhdr_ext
->s_nreloc
);
880 scnhdr_int
->s_nlnno
= bfd_h_get_16(abfd
, (bfd_byte
*) scnhdr_ext
->s_nlnno
);
883 scnhdr_int
->s_align
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_align
);
888 DEFUN(coff_swap_scnhdr_out
,(abfd
, in
, out
),
893 struct internal_scnhdr
*scnhdr_int
= (struct internal_scnhdr
*)in
;
894 SCNHDR
*scnhdr_ext
= (SCNHDR
*)out
;
895 memcpy(scnhdr_ext
->s_name
, scnhdr_int
->s_name
, sizeof(scnhdr_int
->s_name
));
896 PUTWORD(abfd
, scnhdr_int
->s_vaddr
, (bfd_byte
*) scnhdr_ext
->s_vaddr
);
897 PUTWORD(abfd
, scnhdr_int
->s_paddr
, (bfd_byte
*) scnhdr_ext
->s_paddr
);
898 PUTWORD(abfd
, scnhdr_int
->s_size
, (bfd_byte
*) scnhdr_ext
->s_size
);
899 PUTWORD(abfd
, scnhdr_int
->s_scnptr
, (bfd_byte
*) scnhdr_ext
->s_scnptr
);
900 PUTWORD(abfd
, scnhdr_int
->s_relptr
, (bfd_byte
*) scnhdr_ext
->s_relptr
);
901 PUTWORD(abfd
, scnhdr_int
->s_lnnoptr
, (bfd_byte
*) scnhdr_ext
->s_lnnoptr
);
902 PUTWORD(abfd
, scnhdr_int
->s_flags
, (bfd_byte
*) scnhdr_ext
->s_flags
);
904 PUTWORD(abfd
, scnhdr_int
->s_nlnno
, (bfd_byte
*) scnhdr_ext
->s_nlnno
);
905 PUTWORD(abfd
, scnhdr_int
->s_nreloc
, (bfd_byte
*) scnhdr_ext
->s_nreloc
);
907 PUTHALF(abfd
, scnhdr_int
->s_nlnno
, (bfd_byte
*) scnhdr_ext
->s_nlnno
);
908 PUTHALF(abfd
, scnhdr_int
->s_nreloc
, (bfd_byte
*) scnhdr_ext
->s_nreloc
);
912 PUTWORD(abfd
, scnhdr_int
->s_align
, (bfd_byte
*) scnhdr_ext
->s_align
);
914 return sizeof(SCNHDR
);
919 initialize a section structure with information peculiar to this
920 particular implementation of coff
924 DEFUN(coff_new_section_hook
,(abfd
, section
),
928 section
->alignment_power
= abfd
->xvec
->align_power_min
;
929 /* Allocate aux records for section symbols, to store size and
932 @@ Shouldn't use constant multiplier here! */
933 coffsymbol (section
->symbol
)->native
=
934 (combined_entry_type
*) bfd_zalloc (abfd
,
935 sizeof (combined_entry_type
) * 10);
939 static asection bfd_debug_section
= { "*DEBUG*" };
941 /* Take a section header read from a coff file (in HOST byte order),
942 and make a BFD "section" out of it. */
944 DEFUN(make_a_section_from_file
,(abfd
, hdr
, target_index
),
946 struct internal_scnhdr
*hdr AND
947 unsigned int target_index
)
949 asection
*return_section
;
952 /* Assorted wastage to null-terminate the name, thanks AT&T! */
953 name
= bfd_alloc(abfd
, sizeof (hdr
->s_name
)+1);
955 bfd_error
= no_memory
;
958 strncpy(name
, (char *) &hdr
->s_name
[0], sizeof (hdr
->s_name
));
959 name
[sizeof (hdr
->s_name
)] = 0;
961 return_section
= bfd_make_section(abfd
, name
);
963 /* On SCO a file created by the Microsoft assembler can have two
964 .data sections. We use .data2 for the second one. */
965 if (return_section
== NULL
&& strcmp(name
, _DATA
) == 0)
966 return_section
= bfd_make_section(abfd
, ".data2");
967 #endif /* TWO_DATA_SECS */
968 if (return_section
== NULL
)
971 /* s_paddr is presumed to be = to s_vaddr */
973 return_section
->vma
= hdr
->s_vaddr
;
974 return_section
->_raw_size
= hdr
->s_size
;
975 return_section
->filepos
= hdr
->s_scnptr
;
976 return_section
->rel_filepos
= hdr
->s_relptr
;
977 return_section
->reloc_count
= hdr
->s_nreloc
;
980 /* FIXME, use a temp var rather than alignment_power */
981 return_section
->alignment_power
= hdr
->s_align
;
984 for (i
= 0; i
< 32; i
++) {
985 if ((1 << i
) >= (int) (return_section
->alignment_power
)) {
986 return_section
->alignment_power
= i
;
993 return_section
->line_filepos
= hdr
->s_lnnoptr
;
995 return_section->linesize = hdr->s_nlnno * sizeof (struct lineno);
998 return_section
->lineno_count
= hdr
->s_nlnno
;
999 return_section
->userdata
= NULL
;
1000 return_section
->next
= (asection
*) NULL
;
1001 return_section
->flags
= styp_to_sec_flags(hdr
->s_flags
);
1003 return_section
->target_index
= target_index
;
1005 if (hdr
->s_nreloc
!= 0)
1006 return_section
->flags
|= SEC_RELOC
;
1007 /* FIXME: should this check 'hdr->s_size > 0' */
1008 if (hdr
->s_scnptr
!= 0)
1009 return_section
->flags
|= SEC_HAS_CONTENTS
;
1013 DEFUN(coff_mkobject
,(abfd
),
1016 abfd
->tdata
.coff_obj_data
= (struct coff_tdata
*)bfd_zalloc (abfd
,sizeof(coff_data_type
));
1017 if (abfd
->tdata
.coff_obj_data
== 0){
1018 bfd_error
= no_memory
;
1021 coff_data(abfd
)->relocbase
= 0;
1022 /* make_abs_section(abfd);*/
1028 DEFUN(coff_real_object_p
,(abfd
, nscns
, internal_f
, internal_a
),
1031 struct internal_filehdr
*internal_f AND
1032 struct internal_aouthdr
*internal_a
)
1034 coff_data_type
*coff
;
1035 enum bfd_architecture arch
;
1037 size_t readsize
; /* length of file_info */
1038 SCNHDR
*external_sections
;
1040 /* Build a play area */
1041 if (coff_mkobject(abfd
) != true)
1044 coff
= coff_data(abfd
);
1047 external_sections
= (SCNHDR
*)bfd_alloc(abfd
, readsize
= (nscns
* SCNHSZ
));
1049 if (bfd_read((PTR
)external_sections
, 1, readsize
, abfd
) != readsize
) {
1054 /* Now copy data as required; construct all asections etc */
1055 coff
->symbol_index_slew
= 0;
1057 coff
->raw_syment_count
= 0;
1058 coff
->raw_linenos
= 0;
1059 coff
->raw_syments
= 0;
1060 coff
->sym_filepos
=0;
1061 coff
->flags
= internal_f
->f_flags
;
1064 for (i
= 0; i
< nscns
; i
++) {
1065 struct internal_scnhdr tmp
;
1066 coff_swap_scnhdr_in(abfd
, external_sections
+ i
, &tmp
);
1067 make_a_section_from_file(abfd
,&tmp
, i
+1);
1071 /* make_abs_section(abfd);*/
1073 /* Determine the machine architecture and type. */
1075 switch (internal_f
->f_magic
) {
1078 arch
= bfd_arch_i386
;
1083 #ifdef A29K_MAGIC_BIG
1084 case A29K_MAGIC_BIG
:
1085 case A29K_MAGIC_LITTLE
:
1086 arch
= bfd_arch_a29k
;
1095 arch
= bfd_arch_mips
;
1103 arch
= bfd_arch_m68k
;
1111 arch
= bfd_arch_m88k
;
1117 arch
= bfd_arch_z8k
;
1118 switch (internal_f
->f_flags
& F_MACHMASK
)
1121 machine
= bfd_mach_z8001
;
1124 machine
= bfd_mach_z8002
;
1135 arch
= bfd_arch_i960
;
1136 switch (F_I960TYPE
& internal_f
->f_flags
)
1140 machine
= bfd_mach_i960_core
;
1143 machine
= bfd_mach_i960_kb_sb
;
1146 machine
= bfd_mach_i960_mc
;
1149 machine
= bfd_mach_i960_xa
;
1152 machine
= bfd_mach_i960_ca
;
1155 machine
= bfd_mach_i960_ka_sa
;
1166 arch
= bfd_arch_rs6000
;
1173 arch
= bfd_arch_we32k
;
1180 arch
= bfd_arch_h8300
;
1185 default: /* Unreadable input file type */
1186 arch
= bfd_arch_obscure
;
1190 bfd_default_set_arch_mach(abfd
, arch
, machine
);
1191 if (!(internal_f
->f_flags
& F_RELFLG
))
1192 abfd
->flags
|= HAS_RELOC
;
1193 if ((internal_f
->f_flags
& F_EXEC
))
1194 abfd
->flags
|= EXEC_P
;
1195 if (!(internal_f
->f_flags
& F_LNNO
))
1196 abfd
->flags
|= HAS_LINENO
;
1197 if (!(internal_f
->f_flags
& F_LSYMS
))
1198 abfd
->flags
|= HAS_LOCALS
;
1201 bfd_get_symcount(abfd
) = internal_f
->f_nsyms
;
1202 if (internal_f
->f_nsyms
)
1203 abfd
->flags
|= HAS_SYMS
;
1205 coff
->sym_filepos
= internal_f
->f_symptr
;
1207 /* These members communicate important constants about the symbol table
1208 to GDB's symbol-reading code. These `constants' unfortunately vary
1209 from coff implementation to implementation... */
1210 #ifndef NO_COFF_SYMBOLS
1211 coff
->local_n_btmask
= N_BTMASK
;
1212 coff
->local_n_btshft
= N_BTSHFT
;
1213 coff
->local_n_tmask
= N_TMASK
;
1214 coff
->local_n_tshift
= N_TSHIFT
;
1215 coff
->local_symesz
= SYMESZ
;
1216 coff
->local_auxesz
= AUXESZ
;
1217 coff
->local_linesz
= LINESZ
;
1220 coff
->symbols
= (coff_symbol_type
*) NULL
;
1221 bfd_get_start_address(abfd
) = internal_f
->f_opthdr
? internal_a
->entry
: 0;
1225 bfd_release(abfd
, coff
);
1226 return (bfd_target
*)NULL
;
1230 DEFUN(coff_object_p
,(abfd
),
1236 struct internal_filehdr internal_f
;
1237 struct internal_aouthdr internal_a
;
1239 bfd_error
= system_call_error
;
1241 /* figure out how much to read */
1242 if (bfd_read((PTR
) &filehdr
, 1, FILHSZ
, abfd
) != FILHSZ
)
1245 bfd_swap_filehdr_in(abfd
, &filehdr
, &internal_f
);
1247 if (BADMAG(internal_f
)) {
1248 bfd_error
= wrong_format
;
1251 nscns
=internal_f
.f_nscns
;
1253 if (internal_f
.f_opthdr
) {
1254 if (bfd_read((PTR
) &opthdr
, 1,AOUTSZ
, abfd
) != AOUTSZ
) {
1257 bfd_swap_aouthdr_in(abfd
, (char *)&opthdr
, (char *)&internal_a
);
1260 /* Seek past the opt hdr stuff */
1261 bfd_seek(abfd
, (file_ptr
) (internal_f
.f_opthdr
+ FILHSZ
), SEEK_SET
);
1263 /* if the optional header is NULL or not the correct size then
1264 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1265 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1266 optional header is of a different size.
1268 But the mips keeps extra stuff in it's opthdr, so dont check
1272 #if defined(M88) || defined(I960)
1273 if (internal_f
.f_opthdr
!= 0 && AOUTSZ
!= internal_f
.f_opthdr
)
1274 return (bfd_target
*)NULL
;
1277 return coff_real_object_p(abfd
, nscns
, &internal_f
, &internal_a
);
1282 #ifndef NO_COFF_LINENOS
1285 DEFUN(coff_count_linenumbers
,(abfd
),
1288 unsigned int limit
= bfd_get_symcount(abfd
);
1292 asection
*s
= abfd
->sections
->output_section
;
1294 BFD_ASSERT(s
->lineno_count
== 0);
1300 for (p
= abfd
->outsymbols
, i
= 0; i
< limit
; i
++, p
++) {
1301 asymbol
*q_maybe
= *p
;
1302 if (q_maybe
->the_bfd
->xvec
->flavour
== bfd_target_coff_flavour
) {
1303 coff_symbol_type
*q
= coffsymbol(q_maybe
);
1306 This symbol has a linenumber, increment the owning
1307 section's linenumber count
1309 alent
*l
= q
->lineno
;
1310 q
->symbol
.section
->output_section
->lineno_count
++;
1312 while (l
->line_number
) {
1313 q
->symbol
.section
->output_section
->lineno_count
++;
1321 #endif /* NO_COFF_LINENOS */
1323 #ifndef NO_COFF_SYMBOLS
1326 Takes a bfd and a symbol, returns a pointer to the coff specific area
1327 of the symbol if there is one.
1329 static coff_symbol_type
*
1330 DEFUN(coff_symbol_from
,(ignore_abfd
, symbol
),
1331 bfd
*ignore_abfd AND
1334 if (symbol
->the_bfd
->xvec
->flavour
!= bfd_target_coff_flavour
)
1335 return (coff_symbol_type
*)NULL
;
1337 if (symbol
->the_bfd
->tdata
.coff_obj_data
== (coff_data_type
*)NULL
)
1338 return (coff_symbol_type
*)NULL
;
1340 return (coff_symbol_type
*) symbol
;
1346 DEFUN(fixup_symbol_value
,(coff_symbol_ptr
, syment
),
1347 coff_symbol_type
*coff_symbol_ptr AND
1348 struct internal_syment
*syment
)
1351 /* Normalize the symbol flags */
1352 if (coff_symbol_ptr
->symbol
.section
== &bfd_com_section
) {
1353 /* a common symbol is undefined with a value */
1354 syment
->n_scnum
= N_UNDEF
;
1355 syment
->n_value
= coff_symbol_ptr
->symbol
.value
;
1357 else if (coff_symbol_ptr
->symbol
.flags
& BSF_DEBUGGING
) {
1358 syment
->n_value
= coff_symbol_ptr
->symbol
.value
;
1360 else if (coff_symbol_ptr
->symbol
.section
== & bfd_und_section
) {
1361 syment
->n_scnum
= N_UNDEF
;
1362 syment
->n_value
= 0;
1365 if (coff_symbol_ptr
->symbol
.section
) {
1367 coff_symbol_ptr
->symbol
.section
->output_section
->target_index
;
1370 coff_symbol_ptr
->symbol
.value
+
1371 coff_symbol_ptr
->symbol
.section
->output_offset
+
1372 coff_symbol_ptr
->symbol
.section
->output_section
->vma
;
1376 /* This can happen, but I don't know why yet (steve@cygnus.com) */
1377 syment
->n_scnum
= N_ABS
;
1378 syment
->n_value
= coff_symbol_ptr
->symbol
.value
;
1383 /* run through all the symbols in the symbol table and work out what
1384 their indexes into the symbol table will be when output
1386 Coff requires that each C_FILE symbol points to the next one in the
1387 chain, and that the last one points to the first external symbol. We
1392 DEFUN(coff_renumber_symbols
,(bfd_ptr
),
1395 unsigned int symbol_count
= bfd_get_symcount(bfd_ptr
);
1396 asymbol
**symbol_ptr_ptr
= bfd_ptr
->outsymbols
;
1397 unsigned int native_index
= 0;
1398 struct internal_syment
*last_file
= (struct internal_syment
*)NULL
;
1399 unsigned int symbol_index
;
1401 /* COFF demands that undefined symbols come after all other symbols.
1402 Since we don't need to impose this extra knowledge on all our client
1403 programs, deal with that here. Sort the symbol table; just move the
1404 undefined symbols to the end, leaving the rest alone. */
1405 /* @@ Do we have some condition we could test for, so we don't always
1406 have to do this? I don't think relocatability is quite right, but
1407 I'm not certain. [raeburn:19920508.1711EST] */
1412 newsyms
= (asymbol
**) bfd_alloc_by_size_t (bfd_ptr
,
1414 * (symbol_count
+ 1));
1415 bfd_ptr
->outsymbols
= newsyms
;
1416 for (i
= 0; i
< symbol_count
; i
++)
1417 if (symbol_ptr_ptr
[i
]->section
!= &bfd_und_section
)
1418 *newsyms
++ = symbol_ptr_ptr
[i
];
1419 for (i
= 0; i
< symbol_count
; i
++)
1420 if (symbol_ptr_ptr
[i
]->section
== &bfd_und_section
)
1421 *newsyms
++ = symbol_ptr_ptr
[i
];
1422 *newsyms
= (asymbol
*) NULL
;
1423 symbol_ptr_ptr
= bfd_ptr
->outsymbols
;
1426 for (symbol_index
= 0; symbol_index
< symbol_count
; symbol_index
++)
1428 coff_symbol_type
*coff_symbol_ptr
= coff_symbol_from(bfd_ptr
, symbol_ptr_ptr
[symbol_index
]);
1429 if (coff_symbol_ptr
&& coff_symbol_ptr
->native
) {
1430 combined_entry_type
*s
= coff_symbol_ptr
->native
;
1433 if (s
->u
.syment
.n_sclass
== C_FILE
)
1435 if (last_file
!= (struct internal_syment
*)NULL
) {
1436 last_file
->n_value
= native_index
;
1438 last_file
= &(s
->u
.syment
);
1442 /* Modify the symbol values according to their section and
1445 fixup_symbol_value(coff_symbol_ptr
, &(s
->u
.syment
));
1447 for (i
= 0; i
< s
->u
.syment
.n_numaux
+ 1; i
++) {
1448 s
[i
].offset
= native_index
++;
1455 obj_conv_table_size (bfd_ptr
) = native_index
;
1460 Run thorough the symbol table again, and fix it so that all pointers to
1461 entries are changed to the entries' index in the output symbol table.
1465 DEFUN(coff_mangle_symbols
,(bfd_ptr
),
1468 unsigned int symbol_count
= bfd_get_symcount(bfd_ptr
);
1469 asymbol
**symbol_ptr_ptr
= bfd_ptr
->outsymbols
;
1470 unsigned int symbol_index
;
1472 for (symbol_index
= 0; symbol_index
< symbol_count
; symbol_index
++)
1474 coff_symbol_type
*coff_symbol_ptr
=
1475 coff_symbol_from(bfd_ptr
, symbol_ptr_ptr
[symbol_index
]);
1477 if (coff_symbol_ptr
&& coff_symbol_ptr
->native
) {
1479 combined_entry_type
*s
= coff_symbol_ptr
->native
;
1481 for (i
= 0; i
< s
->u
.syment
.n_numaux
; i
++) {
1482 combined_entry_type
*a
= s
+ i
+ 1;
1484 a
->u
.auxent
.x_sym
.x_tagndx
.l
=
1485 a
->u
.auxent
.x_sym
.x_tagndx
.p
->offset
;
1489 a
->u
.auxent
.x_sym
.x_fcnary
.x_fcn
.x_endndx
.l
=
1490 a
->u
.auxent
.x_sym
.x_fcnary
.x_fcn
.x_endndx
.p
->offset
;
1500 static int string_size
;
1502 DEFUN(coff_fix_symbol_name
,(ignore_abfd
, symbol
, native
),
1503 bfd
*ignore_abfd AND
1505 combined_entry_type
*native
)
1507 unsigned int name_length
;
1508 union internal_auxent
*auxent
;
1509 char * name
= ( char *)(symbol
->name
);
1511 if (name
== (char *) NULL
) {
1512 /* coff symbols always have names, so we'll make one up */
1513 symbol
->name
= "strange";
1514 name
= (char *)symbol
->name
;
1516 name_length
= strlen(name
);
1518 if (native
->u
.syment
.n_sclass
== C_FILE
) {
1519 strncpy(native
->u
.syment
._n
._n_name
, ".file", SYMNMLEN
);
1520 auxent
= &(native
+1)->u
.auxent
;
1522 #ifdef COFF_LONG_FILENAMES
1523 if (name_length
<= FILNMLEN
) {
1524 strncpy(auxent
->x_file
.x_fname
, name
, FILNMLEN
);
1527 auxent
->x_file
.x_n
.x_offset
= string_size
+ 4;
1528 auxent
->x_file
.x_n
.x_zeroes
= 0;
1529 string_size
+= name_length
+ 1;
1532 strncpy(auxent
->x_file
.x_fname
, name
, FILNMLEN
);
1533 if (name_length
> FILNMLEN
) {
1534 name
[FILNMLEN
] = '\0';
1539 { /* NOT A C_FILE SYMBOL */
1540 if (name_length
<= SYMNMLEN
) {
1541 /* This name will fit into the symbol neatly */
1542 strncpy(native
->u
.syment
._n
._n_name
, symbol
->name
, SYMNMLEN
);
1545 native
->u
.syment
._n
._n_n
._n_offset
= string_size
+ 4;
1546 native
->u
.syment
._n
._n_n
._n_zeroes
= 0;
1547 string_size
+= name_length
+ 1;
1555 DEFUN(coff_write_symbol
,(abfd
, symbol
, native
, written
),
1558 combined_entry_type
*native AND
1559 unsigned int written
)
1561 unsigned int numaux
= native
->u
.syment
.n_numaux
;
1562 int type
= native
->u
.syment
.n_type
;
1563 int class = native
->u
.syment
.n_sclass
;
1567 /* @@ bfd_debug_section isn't accessible outside this file, but we know
1568 that C_FILE symbols belong there. So move them. */
1569 if (native
->u
.syment
.n_sclass
== C_FILE
)
1570 symbol
->section
= &bfd_debug_section
;
1572 if (symbol
->section
== &bfd_abs_section
)
1574 native
->u
.syment
.n_scnum
= N_ABS
;
1576 else if (symbol
->section
== &bfd_debug_section
)
1578 native
->u
.syment
.n_scnum
= N_DEBUG
;
1580 else if (symbol
->section
== &bfd_und_section
)
1582 native
->u
.syment
.n_scnum
= N_UNDEF
;
1586 native
->u
.syment
.n_scnum
=
1587 symbol
->section
->output_section
->target_index
;
1591 coff_fix_symbol_name(abfd
, symbol
, native
);
1593 coff_swap_sym_out(abfd
, &native
->u
.syment
, &buf
);
1594 bfd_write((PTR
)& buf
, 1, SYMESZ
, abfd
);
1595 for (j
= 0; j
< native
->u
.syment
.n_numaux
; j
++)
1598 coff_swap_aux_out(abfd
,
1599 &( (native
+ j
+ 1)->u
.auxent
), type
, class, &buf1
);
1600 bfd_write((PTR
) (&buf1
), 1, AUXESZ
, abfd
);
1603 Reuse somewhere in the symbol to keep the index
1605 set_index(symbol
, written
);
1606 return written
+ 1 + numaux
;
1611 DEFUN(coff_write_alien_symbol
,(abfd
, symbol
, written
),
1614 unsigned int written
)
1617 This symbol has been created by the loader, or come from a non
1618 coff format. It has no native element to inherit, make our
1621 combined_entry_type
*native
;
1622 combined_entry_type dummy
;
1624 native
->u
.syment
.n_type
= T_NULL
;
1626 native
->u
.syment
.n_flags
= 0;
1628 if (symbol
->section
== &bfd_und_section
)
1630 native
->u
.syment
.n_scnum
= N_UNDEF
;
1631 native
->u
.syment
.n_value
= symbol
->value
;
1633 else if (symbol
->section
== &bfd_com_section
)
1635 native
->u
.syment
.n_scnum
= N_UNDEF
;
1636 native
->u
.syment
.n_value
= symbol
->value
;
1640 else if (symbol
->flags
& BSF_DEBUGGING
) {
1642 remove name so it doesn't take up any space
1647 native
->u
.syment
.n_scnum
= symbol
->section
->output_section
->target_index
;
1648 native
->u
.syment
.n_value
= symbol
->value
+
1649 symbol
->section
->output_section
->vma
+
1650 symbol
->section
->output_offset
;
1652 /* Copy the any flags from the the file hdr into the symbol */
1654 coff_symbol_type
*c
= coff_symbol_from(abfd
, symbol
);
1655 if (c
!= (coff_symbol_type
*)NULL
) {
1656 native
->u
.syment
.n_flags
= c
->symbol
.the_bfd
->flags
;
1663 native
->u
.syment
.pad1
[0] = 0;
1664 native
->u
.syment
.pad1
[0] = 0;
1667 native
->u
.syment
.n_type
= 0;
1668 if (symbol
->flags
& BSF_LOCAL
)
1669 native
->u
.syment
.n_sclass
= C_STAT
;
1671 native
->u
.syment
.n_sclass
= C_EXT
;
1672 native
->u
.syment
.n_numaux
= 0;
1674 return coff_write_symbol(abfd
, symbol
, native
, written
);
1678 DEFUN(coff_write_native_symbol
,(abfd
, symbol
, written
),
1680 coff_symbol_type
*symbol AND
1681 unsigned int written
)
1684 Does this symbol have an ascociated line number - if so then
1685 make it remember this symbol index. Also tag the auxent of
1686 this symbol to point to the right place in the lineno table
1688 combined_entry_type
*native
= symbol
->native
;
1690 alent
*lineno
= symbol
->lineno
;
1692 if (lineno
&& !symbol
->done_lineno
) {
1693 unsigned int count
= 0;
1694 lineno
[count
].u
.offset
= written
;
1695 if (native
->u
.syment
.n_numaux
) {
1696 union internal_auxent
*a
= &((native
+1)->u
.auxent
);
1698 a
->x_sym
.x_fcnary
.x_fcn
.x_lnnoptr
=
1699 symbol
->symbol
.section
->output_section
->moving_line_filepos
;
1702 And count and relocate all other linenumbers
1706 while (lineno
[count
].line_number
) {
1709 I've been told this, but still need proof:
1710 > The second bug is also in `bfd/coffcode.h'. This bug causes the linker to screw
1711 > up the pc-relocations for all the line numbers in COFF code. This bug isn't
1712 > only specific to A29K implementations, but affects all systems using COFF
1713 > format binaries. Note that in COFF object files, the line number core offsets
1714 > output by the assembler are relative to the start of each procedure, not
1715 > to the start of the .text section. This patch relocates the line numbers
1716 > relative to the `native->u.syment.n_value' instead of the section virtual
1717 > address. modular!olson@cs.arizona.edu (Jon Olson)
1719 lineno
[count
].u
.offset
+= native
->u
.syment
.n_value
;
1722 lineno
[count
].u
.offset
+=
1723 symbol
->symbol
.section
->output_section
->vma
+
1724 symbol
->symbol
.section
->output_offset
;
1728 symbol
->done_lineno
= true;
1730 symbol
->symbol
.section
->output_section
->moving_line_filepos
+=
1733 return coff_write_symbol(abfd
, &( symbol
->symbol
), native
,written
);
1737 DEFUN(coff_write_symbols
,(abfd
),
1741 unsigned int limit
= bfd_get_symcount(abfd
);
1742 unsigned int written
= 0;
1749 /* Seek to the right place */
1750 bfd_seek(abfd
, obj_sym_filepos(abfd
), SEEK_SET
);
1752 /* Output all the symbols we have */
1755 for (p
= abfd
->outsymbols
, i
= 0; i
< limit
; i
++, p
++)
1757 asymbol
*symbol
= *p
;
1758 coff_symbol_type
*c_symbol
= coff_symbol_from(abfd
, symbol
);
1760 if (c_symbol
== (coff_symbol_type
*) NULL
||
1761 c_symbol
->native
== (combined_entry_type
*)NULL
)
1763 written
= coff_write_alien_symbol(abfd
, symbol
, written
);
1767 written
= coff_write_native_symbol(abfd
, c_symbol
, written
);
1772 bfd_get_symcount(abfd
) = written
;
1774 /* Now write out strings */
1776 if (string_size
!= 0)
1778 unsigned int size
= string_size
+ 4;
1781 bfd_h_put_32(abfd
, size
, buffer
);
1782 bfd_write((PTR
) buffer
, 1, sizeof(buffer
), abfd
);
1783 for (p
= abfd
->outsymbols
, i
= 0;
1788 size_t name_length
= strlen(q
->name
);
1790 coff_symbol_type
* c_symbol
= coff_symbol_from(abfd
, q
);
1791 maxlen
= ((c_symbol
!= NULL
&& c_symbol
->native
!= NULL
) &&
1792 (c_symbol
->native
->u
.syment
.n_sclass
== C_FILE
)) ?
1793 FILNMLEN
: SYMNMLEN
;
1795 if (name_length
> maxlen
) {
1796 bfd_write((PTR
) (q
->name
), 1, name_length
+ 1, abfd
);
1801 /* We would normally not write anything here, but we'll write
1802 out 4 so that any stupid coff reader which tries to read
1803 the string table even when there isn't one won't croak.
1806 uint32e_type size
= 4;
1808 bfd_write((PTR
)&size
, 1, sizeof(size
), abfd
);
1817 To write relocations, all the back end does is step though the
1818 canonical relocation table, and create an
1819 @code{internal_reloc}. The symbol index to use is removed from
1820 the @code{offset} field in the symbol table supplied, the
1821 address comes directly from the sum of the section base
1822 address and the relocation offset and the type is dug directly
1823 from the howto field. Then the @code{internal_reloc} is
1824 swapped into the shape of an @code{external_reloc} and written
1830 DEFUN(coff_write_relocs
,(abfd
),
1834 for (s
= abfd
->sections
; s
!= (asection
*) NULL
; s
= s
->next
) {
1836 struct external_reloc dst
;
1838 arelent
**p
= s
->orelocation
;
1839 bfd_seek(abfd
, s
->rel_filepos
, SEEK_SET
);
1840 for (i
= 0; i
< s
->reloc_count
; i
++) {
1841 struct internal_reloc n
;
1843 memset((PTR
)&n
, 0, sizeof(n
));
1845 n
.r_vaddr
= q
->address
+ s
->vma
;
1846 /* The 29k const/consth reloc pair is a real kludge - the consth
1847 part doesn't have a symbol - it has an offset. So rebuilt
1850 if (q
->howto
->type
== R_IHCONST
)
1851 n
.r_symndx
= q
->addend
;
1858 if (q
->sym_ptr_ptr
== bfd_abs_section
.symbol_ptr_ptr
)
1860 /* This is a relocation relative to the absolute symbol */
1865 n
.r_symndx
= get_index((*(q
->sym_ptr_ptr
)));
1866 /* Take notice if the symbol reloc points to a symbol we don't have
1867 in our symbol table. What should we do for this?? */
1868 if (n
.r_symndx
> obj_conv_table_size (abfd
))
1876 /* Work out reloc type from what is required */
1877 SELECT_RELOC(n
.r_type
, q
->howto
);
1879 n
.r_type
= q
->howto
->type
;
1881 coff_swap_reloc_out(abfd
, &n
, &dst
);
1882 bfd_write((PTR
) &dst
, 1, RELSZ
, abfd
);
1886 #endif /* NO_COFF_SYMBOLS */
1888 #ifndef NO_COFF_LINENOS
1891 DEFUN(coff_write_linenumbers
,(abfd
),
1895 for (s
= abfd
->sections
; s
!= (asection
*) NULL
; s
= s
->next
) {
1896 if (s
->lineno_count
) {
1897 asymbol
**q
= abfd
->outsymbols
;
1898 bfd_seek(abfd
, s
->line_filepos
, SEEK_SET
);
1899 /* Find all the linenumbers in this section */
1902 alent
*l
= BFD_SEND(p
->the_bfd
, _get_lineno
, (p
->the_bfd
, p
));
1904 /* Found a linenumber entry, output */
1905 struct internal_lineno out
;
1907 memset( (PTR
)&out
, 0, sizeof(out
));
1909 out
.l_addr
.l_symndx
= l
->u
.offset
;
1910 coff_swap_lineno_out(abfd
, &out
, &buff
);
1911 bfd_write((PTR
) &buff
, 1, LINESZ
, abfd
);
1913 while (l
->line_number
) {
1914 out
.l_lnno
= l
->line_number
;
1915 out
.l_addr
.l_symndx
= l
->u
.offset
;
1916 coff_swap_lineno_out(abfd
, &out
, &buff
);
1917 bfd_write((PTR
) &buff
, 1, LINESZ
, abfd
);
1928 DEFUN(coff_get_lineno
,(ignore_abfd
, symbol
),
1929 bfd
*ignore_abfd AND
1932 return coffsymbol(symbol
)->lineno
;
1935 #endif /* NO_COFF_LINENOS */
1938 coff_make_empty_symbol(abfd
)
1941 coff_symbol_type
*new = (coff_symbol_type
*) bfd_alloc(abfd
, sizeof(coff_symbol_type
));
1943 bfd_error
= no_memory
;
1946 new->symbol
.section
= 0;
1948 new->lineno
= (alent
*) NULL
;
1949 new->done_lineno
= false;
1950 new->symbol
.the_bfd
= abfd
;
1951 return &new->symbol
;
1954 #ifndef NO_COFF_SYMBOLS
1957 DEFUN (coff_make_debug_symbol
, (abfd
, ptr
, sz
),
1962 coff_symbol_type
*new = (coff_symbol_type
*) bfd_alloc(abfd
, sizeof(coff_symbol_type
));
1964 bfd_error
= no_memory
;
1967 /* @@ This shouldn't be using a constant multiplier. */
1968 new->native
= (combined_entry_type
*) bfd_zalloc (abfd
, sizeof (combined_entry_type
) * 10);
1969 new->symbol
.section
= &bfd_debug_section
;
1970 new->lineno
= (alent
*) NULL
;
1971 new->done_lineno
= false;
1972 new->symbol
.the_bfd
= abfd
;
1973 return &new->symbol
;
1977 DEFUN(coff_print_symbol
,(ignore_abfd
, filep
, symbol
, how
),
1978 bfd
*ignore_abfd AND
1981 bfd_print_symbol_type how
)
1983 FILE *file
= (FILE *)filep
;
1985 case bfd_print_symbol_name
:
1986 fprintf(file
, "%s", symbol
->name
);
1988 case bfd_print_symbol_more
:
1989 fprintf(file
, "coff %lx %lx", (unsigned long) coffsymbol(symbol
)->native
,
1990 (unsigned long) coffsymbol(symbol
)->lineno
);
1992 case bfd_print_symbol_nm
:
1995 CONST
char *section_name
= symbol
->section
->name
;
1996 bfd_print_symbol_vandf((PTR
) file
, symbol
);
1999 fprintf(file
, " %-5s %s %s %s",
2001 coffsymbol(symbol
)->native
? "n" : "g",
2002 coffsymbol(symbol
)->lineno
? "l" : " ",
2008 case bfd_print_symbol_all
:
2009 /* Print out the symbols in a reasonable way */
2011 CONST
char *section_name
= symbol
->section
->name
;
2014 if (coffsymbol(symbol
)->native
)
2017 combined_entry_type
*combined
= coffsymbol(symbol
)->native
;
2018 combined_entry_type
*root
= obj_raw_syments(ignore_abfd
);
2020 fprintf(file
,"[%3d]",
2024 fprintf(file
, "(sc %2d)(fl%4x)(ty%3x)(sc%3d) nx(%d) %08x %s",
2025 combined
->u
.syment
.n_scnum
,
2026 combined
->u
.syment
.n_flags
,
2027 combined
->u
.syment
.n_type
,
2028 combined
->u
.syment
.n_sclass
,
2029 combined
->u
.syment
.n_numaux
,
2030 combined
->u
.syment
.n_value
,
2033 for (aux
= 0; aux
< combined
->u
.syment
.n_numaux
; aux
++)
2036 switch (combined
->u
.syment
.n_sclass
) {
2038 fprintf(file
, "File ");
2041 fprintf(file
, "AUX lnno %x size %x tagndx %x",
2042 combined
[aux
+1].u
.auxent
.x_sym
.x_misc
.x_lnsz
.x_lnno
,
2043 combined
[aux
+1].u
.auxent
.x_sym
.x_misc
.x_lnsz
.x_size
,
2044 combined
[aux
+1].u
.auxent
.x_sym
.x_tagndx
.l
);
2052 struct lineno_cache_entry
*l
= coffsymbol(symbol
)->lineno
;
2055 printf("\n%s :", l
->u
.sym
->name
);
2057 while (l
->line_number
)
2059 printf("\n%4d : %x",
2073 bfd_print_symbol_vandf((PTR
) file
, symbol
);
2074 fprintf(file
, " %-5s %s %s %s",
2076 coffsymbol(symbol
)->native
? "n" : "g",
2077 coffsymbol(symbol
)->lineno
? "l" : " ",
2086 #endif /* NO_COFF_SYMBOLS */
2088 /* Set flags and magic number of a coff file from architecture and machine
2089 type. Result is true if we can represent the arch&type, false if not. */
2092 DEFUN(coff_set_flags
,(abfd
, magicp
, flagsp
),
2094 unsigned *magicp AND
2095 unsigned short *flagsp
)
2097 switch (bfd_get_arch(abfd
)) {
2101 switch (bfd_get_mach(abfd
))
2103 case bfd_mach_z8001
:
2106 case bfd_mach_z8002
:
2120 *magicp
= I960ROMAGIC
;
2122 ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC :
2123 I960RWMAGIC); FIXME???
2125 switch (bfd_get_mach(abfd
)) {
2126 case bfd_mach_i960_core
:
2129 case bfd_mach_i960_kb_sb
:
2132 case bfd_mach_i960_mc
:
2135 case bfd_mach_i960_xa
:
2138 case bfd_mach_i960_ca
:
2141 case bfd_mach_i960_ka_sa
:
2154 *magicp
= MIPS_MAGIC_2
;
2160 *magicp
= I386MAGIC
;
2166 *magicp
= MC68MAGIC
;
2173 *magicp
= MC88OMAGIC
;
2178 case bfd_arch_h8300
:
2179 *magicp
= H8300MAGIC
;
2183 #ifdef A29K_MAGIC_BIG
2185 if (abfd
->xvec
->byteorder_big_p
)
2186 *magicp
= A29K_MAGIC_BIG
;
2188 *magicp
= A29K_MAGIC_LITTLE
;
2194 case bfd_arch_we32k
:
2195 *magicp
= WE32KMAGIC
;
2201 case bfd_arch_rs6000
:
2202 *magicp
= U802TOCMAGIC
;
2207 default: /* Unknown architecture */
2208 /* return false; -- fall through to "return false" below, to avoid
2209 "statement never reached" errors on the one below. */
2218 DEFUN(coff_set_arch_mach
,(abfd
, arch
, machine
),
2220 enum bfd_architecture arch AND
2221 unsigned long machine
)
2224 unsigned short dummy2
;
2225 bfd_default_set_arch_mach(abfd
, arch
, machine
);
2227 if (arch
!= bfd_arch_unknown
&&
2228 coff_set_flags(abfd
, &dummy1
, &dummy2
) != true)
2229 return false; /* We can't represent this type */
2230 return true; /* We're easy ... */
2234 /* Calculate the file position for each section. */
2237 DEFUN(coff_compute_section_file_positions
,(abfd
),
2241 asection
*previous
= (asection
*)NULL
;
2242 file_ptr sofar
= FILHSZ
;
2244 if (bfd_get_start_address(abfd
))
2246 /* A start address may have been added to the original file. In this
2247 case it will need an optional header to record it. */
2248 abfd
->flags
|= EXEC_P
;
2251 if (abfd
->flags
& EXEC_P
)
2254 sofar
+= abfd
->section_count
* SCNHSZ
;
2255 for (current
= abfd
->sections
;
2256 current
!= (asection
*)NULL
;
2257 current
= current
->next
) {
2259 /* Only deal with sections which have contents */
2260 if (!(current
->flags
& SEC_HAS_CONTENTS
))
2263 /* Align the sections in the file to the same boundary on
2264 which they are aligned in virtual memory. I960 doesn't
2265 do this (FIXME) so we can stay in sync with Intel. 960
2266 doesn't yet page from files... */
2269 /* make sure this section is aligned on the right boundary - by
2270 padding the previous section up if necessary */
2273 sofar
= BFD_ALIGN(sofar
, 1 << current
->alignment_power
);
2274 if (previous
!= (asection
*)NULL
) {
2275 previous
->_raw_size
+= sofar
- old_sofar
;
2280 /* FIXME, in demand paged files, the low order bits of the file
2281 offset must match the low order bits of the virtual address.
2282 "Low order" is apparently implementation defined. Add code
2283 here to round sofar up to match the virtual address. */
2285 current
->filepos
= sofar
;
2287 sofar
+= current
->_raw_size
;
2289 /* make sure that this section is of the right size too */
2291 sofar
= BFD_ALIGN(sofar
, 1 << current
->alignment_power
);
2292 current
->_raw_size
+= sofar
- old_sofar
;
2297 obj_relocbase(abfd
) = sofar
;
2300 #ifndef NO_COFF_SYMBOLS
2302 coff_section_symbol (abfd
, name
)
2306 asection
*sec
= bfd_make_section_old_way (abfd
, name
);
2308 combined_entry_type
*csym
;
2311 if (coff_symbol_from (abfd
, sym
))
2312 csym
= coff_symbol_from (abfd
, sym
)->native
;
2315 /* Make sure back-end COFF stuff is there. */
2319 coff_symbol_type sym
;
2320 /* @@FIXME This shouldn't use a fixed size!! */
2321 combined_entry_type e
[10];
2324 f
= (struct foo
*) bfd_alloc_by_size_t (abfd
, sizeof (*f
));
2325 memset ((char *) f
, 0, sizeof (*f
));
2326 coff_symbol_from (abfd
, sym
)->native
= csym
= f
->e
;
2328 csym
[0].u
.syment
.n_sclass
= C_STAT
;
2329 csym
[0].u
.syment
.n_numaux
= 1;
2330 /* SF_SET_STATICS (sym); @@ ??? */
2333 csym
[1].u
.auxent
.x_scn
.x_scnlen
= sec
->_raw_size
;
2334 csym
[1].u
.auxent
.x_scn
.x_nreloc
= sec
->reloc_count
;
2335 csym
[1].u
.auxent
.x_scn
.x_nlinno
= sec
->lineno_count
;
2339 csym
[1].u
.auxent
.x_scn
.x_scnlen
= 0;
2340 csym
[1].u
.auxent
.x_scn
.x_nreloc
= 0;
2341 csym
[1].u
.auxent
.x_scn
.x_nlinno
= 0;
2346 /* If .file, .text, .data, .bss symbols are missing, add them. */
2347 /* @@ Should we only be adding missing symbols, or overriding the aux
2348 values for existing section symbols? */
2350 coff_add_missing_symbols (abfd
)
2353 unsigned int nsyms
= bfd_get_symcount (abfd
);
2354 asymbol
**sympp
= abfd
->outsymbols
;
2357 int need_text
= 1, need_data
= 1, need_bss
= 1, need_file
= 1;
2359 for (i
= 0; i
< nsyms
; i
++)
2361 coff_symbol_type
*csym
= coff_symbol_from (abfd
, sympp
[i
]);
2365 /* only do this if there is a coff representation of the input
2367 if (csym
->native
&& csym
->native
->u
.syment
.n_sclass
== C_FILE
)
2372 name
= csym
->symbol
.name
;
2375 if (!strcmp (name
, _TEXT
))
2377 else if (!strcmp (name
, _DATA
))
2379 else if (!strcmp (name
, _BSS
))
2383 /* Now i == bfd_get_symcount (abfd). */
2384 /* @@ For now, don't deal with .file symbol. */
2387 if (!need_text
&& !need_data
&& !need_bss
&& !need_file
)
2389 nsyms
+= need_text
+ need_data
+ need_bss
+ need_file
;
2390 sympp2
= (asymbol
**) bfd_alloc_by_size_t (abfd
, nsyms
* sizeof (asymbol
*));
2391 memcpy (sympp2
, sympp
, i
* sizeof (asymbol
*));
2394 /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */
2398 sympp2
[i
++] = coff_section_symbol (abfd
, _TEXT
);
2400 sympp2
[i
++] = coff_section_symbol (abfd
, _DATA
);
2402 sympp2
[i
++] = coff_section_symbol (abfd
, _BSS
);
2403 BFD_ASSERT (i
== nsyms
);
2404 bfd_set_symtab (abfd
, sympp2
, nsyms
);
2406 #endif /* NO_COFF_SYMBOLS */
2411 DEFUN(coff_write_object_contents
,(abfd
),
2417 boolean hasrelocs
= false;
2418 boolean haslinno
= false;
2419 file_ptr reloc_base
;
2420 file_ptr lineno_base
;
2424 unsigned long reloc_size
= 0;
2425 unsigned long lnno_size
= 0;
2426 asection
*text_sec
= NULL
;
2427 asection
*data_sec
= NULL
;
2428 asection
*bss_sec
= NULL
;
2430 struct internal_filehdr internal_f
;
2431 struct internal_aouthdr internal_a
;
2434 bfd_error
= system_call_error
;
2435 /* Number the output sections, starting from one on the first section
2436 with a name which doesn't start with a *.
2437 @@ The code doesn't make this check. Is it supposed to be done,
2440 for (current
= abfd
->sections
; current
!= (asection
*)NULL
;
2441 current
= current
->next
)
2443 current
->target_index
= count
;
2447 if(abfd
->output_has_begun
== false) {
2448 coff_compute_section_file_positions(abfd
);
2451 if (abfd
->sections
!= (asection
*)NULL
) {
2452 scn_base
= abfd
->sections
->filepos
;
2457 if (bfd_seek(abfd
, scn_base
, SEEK_SET
) != 0)
2459 reloc_base
= obj_relocbase(abfd
);
2461 /* Make a pass through the symbol table to count line number entries and
2462 put them into the correct asections */
2464 #ifndef NO_COFF_LINENOS
2465 coff_count_linenumbers(abfd
);
2467 data_base
= scn_base
;
2469 /* Work out the size of the reloc and linno areas */
2471 for (current
= abfd
->sections
; current
!= NULL
; current
=
2474 /* We give section headers to +ve indexes */
2475 if (current
->target_index
> 0)
2478 reloc_size
+= current
->reloc_count
* RELSZ
;
2479 #ifndef NO_COFF_LINENOS
2480 lnno_size
+= current
->lineno_count
* LINESZ
;
2482 data_base
+= SCNHSZ
;
2487 lineno_base
= reloc_base
+ reloc_size
;
2488 sym_base
= lineno_base
+ lnno_size
;
2490 /* Indicate in each section->line_filepos its actual file address */
2491 for (current
= abfd
->sections
; current
!= NULL
; current
=
2494 if (current
->target_index
> 0)
2497 if (current
->lineno_count
) {
2498 current
->line_filepos
= lineno_base
;
2499 current
->moving_line_filepos
= lineno_base
;
2500 #ifndef NO_COFF_LINENOS
2501 lineno_base
+= current
->lineno_count
* LINESZ
;
2505 current
->line_filepos
= 0;
2507 if (current
->reloc_count
) {
2508 current
->rel_filepos
= reloc_base
;
2509 reloc_base
+= current
->reloc_count
* RELSZ
;
2512 current
->rel_filepos
= 0;
2519 /* Write section headers to the file. */
2520 internal_f
.f_nscns
= 0;
2522 (file_ptr
) ((abfd
->flags
& EXEC_P
) ?
2523 (FILHSZ
+ AOUTSZ
) : FILHSZ
),
2528 unsigned int pad
= abfd
->flags
& D_PAGED
? data_base
: 0;
2530 unsigned int pad
= 0;
2532 for (current
= abfd
->sections
;
2534 current
= current
->next
) {
2535 struct internal_scnhdr section
;
2536 if (current
->target_index
> 0)
2538 internal_f
.f_nscns
++;
2539 strncpy(&(section
.s_name
[0]), current
->name
, 8);
2541 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
2542 Ian Taylor <ian@cygnus.com>. */
2543 if (strcmp (current
->name
, _LIB
) == 0)
2544 section
.s_vaddr
= 0;
2547 section
.s_vaddr
= current
->vma
+ pad
;
2548 section
.s_paddr
= current
->vma
+ pad
;
2549 section
.s_size
= current
->_raw_size
- pad
;
2551 If this section has no size or is unloadable then the scnptr
2554 if (current
->_raw_size
- pad
== 0 ||
2555 (current
->flags
& (SEC_LOAD
| SEC_HAS_CONTENTS
)) == 0) {
2556 section
.s_scnptr
= 0;
2559 section
.s_scnptr
= current
->filepos
;
2561 section
.s_relptr
= current
->rel_filepos
;
2562 section
.s_lnnoptr
= current
->line_filepos
;
2563 section
.s_nreloc
= current
->reloc_count
;
2564 section
.s_nlnno
= current
->lineno_count
;
2565 if (current
->reloc_count
!= 0)
2567 if (current
->lineno_count
!= 0)
2570 section
.s_flags
= sec_to_styp_flags(current
->name
,current
->flags
);
2572 if (!strcmp(current
->name
, _TEXT
)) {
2574 } else if (!strcmp(current
->name
, _DATA
)) {
2576 #ifdef TWO_DATA_SECS
2577 } else if (!strcmp(current
->name
, ".data2")) {
2579 #endif /* TWO_DATA_SECS */
2580 } else if (!strcmp(current
->name
, _BSS
)) {
2585 section
.s_align
= (current
->alignment_power
2586 ? 1 << current
->alignment_power
2593 coff_swap_scnhdr_out(abfd
, §ion
, &buff
);
2594 bfd_write((PTR
) (&buff
), 1, SCNHSZ
, abfd
);
2604 /* OK, now set up the filehdr... */
2606 /* Don't include the internal abs section in the section count */
2609 We will NOT put a fucking timestamp in the header here. Every time you
2610 put it back, I will come in and take it out again. I'm sorry. This
2611 field does not belong here. We fill it with a 0 so it compares the
2612 same but is not a reasonable time. -- gnu@cygnus.com
2614 internal_f
.f_timdat
= 0;
2616 if (bfd_get_symcount(abfd
) != 0)
2617 internal_f
.f_symptr
= sym_base
;
2619 internal_f
.f_symptr
= 0;
2621 internal_f
.f_flags
= 0;
2623 if (abfd
->flags
& EXEC_P
)
2624 internal_f
.f_opthdr
= AOUTSZ
;
2626 internal_f
.f_opthdr
= 0;
2629 internal_f
.f_flags
|= F_RELFLG
;
2631 internal_f
.f_flags
|= F_LNNO
;
2632 if (0 == bfd_get_symcount(abfd
))
2633 internal_f
.f_flags
|= F_LSYMS
;
2634 if (abfd
->flags
& EXEC_P
)
2635 internal_f
.f_flags
|= F_EXEC
;
2637 if (!abfd
->xvec
->byteorder_big_p
)
2638 internal_f
.f_flags
|= F_AR32WR
;
2640 internal_f
.f_flags
|= F_AR32W
;
2643 FIXME, should do something about the other byte orders and
2647 /* Set up architecture-dependent stuff */
2649 { unsigned int magic
= 0;
2650 unsigned short flags
= 0;
2651 coff_set_flags(abfd
, &magic
, &flags
);
2652 internal_f
.f_magic
= magic
;
2653 internal_f
.f_flags
|= flags
;
2654 /* ...and the "opt"hdr... */
2657 # ifdef ULTRA3 /* NYU's machine */
2658 /* FIXME: This is a bogus check. I really want to see if there
2659 * is a .shbss or a .shdata section, if so then set the magic
2660 * number to indicate a shared data executable.
2662 if (internal_f
.f_nscns
>= 7)
2663 internal_a
.magic
= SHMAGIC
; /* Shared magic */
2665 # endif /* ULTRA3 */
2666 internal_a
.magic
= NMAGIC
; /* Assume separate i/d */
2667 #define __A_MAGIC_SET__
2670 internal_a
.magic
= (magic
== I960ROMAGIC
? NMAGIC
: OMAGIC
);
2671 #define __A_MAGIC_SET__
2674 #define __A_MAGIC_SET__
2675 internal_a
.magic
= PAGEMAGICBCS
;
2678 #if M68 || MIPS || WE32K
2679 #define __A_MAGIC_SET__
2680 /* Never was anything here for the 68k */
2681 #endif /* M68 || MIPS || WE32K */
2684 # define __A_MAGIC_SET__
2685 internal_a
.magic
= ZMAGIC
;
2689 #define __A_MAGIC_SET__
2690 internal_a
.magic
= (abfd
->flags
& D_PAGED
)? RS6K_AOUTHDR_ZMAGIC
:
2691 (abfd
->flags
& WP_TEXT
)? RS6K_AOUTHDR_NMAGIC
:
2692 RS6K_AOUTHDR_OMAGIC
;
2695 #ifndef __A_MAGIC_SET__
2696 # include "Your aouthdr magic number is not being set!"
2698 # undef __A_MAGIC_SET__
2701 /* Now should write relocs, strings, syms */
2702 obj_sym_filepos(abfd
) = sym_base
;
2704 #ifndef NO_COFF_SYMBOLS
2705 if (bfd_get_symcount(abfd
) != 0) {
2706 coff_add_missing_symbols (abfd
);
2707 coff_renumber_symbols(abfd
);
2708 coff_mangle_symbols(abfd
);
2709 coff_write_symbols(abfd
);
2710 coff_write_linenumbers(abfd
);
2711 coff_write_relocs(abfd
);
2713 #endif /* NO_COFF_SYMBOLS */
2715 internal_a
.tsize
= bfd_get_section_size_before_reloc(text_sec
);
2716 internal_a
.text_start
= internal_a
.tsize
? text_sec
->vma
: 0;
2719 internal_a
.dsize
= bfd_get_section_size_before_reloc(data_sec
);
2720 internal_a
.data_start
= internal_a
.dsize
? data_sec
->vma
: 0;
2723 internal_a
.bsize
= bfd_get_section_size_before_reloc(bss_sec
);
2726 internal_a
.entry
= bfd_get_start_address(abfd
);
2727 internal_f
.f_nsyms
= bfd_get_symcount(abfd
);
2729 /* now write them */
2730 if (bfd_seek(abfd
, (file_ptr
) 0, SEEK_SET
) != 0)
2734 coff_swap_filehdr_out(abfd
, (PTR
)&internal_f
, (PTR
)&buff
);
2735 bfd_write((PTR
) &buff
, 1, FILHSZ
, abfd
);
2737 if (abfd
->flags
& EXEC_P
) {
2739 coff_swap_aouthdr_out(abfd
, (PTR
)&internal_a
, (PTR
)&buff
);
2740 bfd_write((PTR
) &buff
, 1, AOUTSZ
, abfd
);
2745 #ifndef NO_COFF_SYMBOLS
2748 this function transforms the offsets into the symbol table into
2749 pointers to syments.
2754 DEFUN(coff_pointerize_aux
,(ignore_abfd
, table_base
, type
, class, auxent
),
2755 bfd
*ignore_abfd AND
2756 combined_entry_type
*table_base AND
2759 combined_entry_type
*auxent
)
2761 /* Don't bother if this is a file or a section */
2762 if (class == C_STAT
&& type
== T_NULL
) return;
2763 if (class == C_FILE
) return;
2765 /* Otherwise patch up */
2766 if (ISFCN(type
) || ISTAG(class) || class == C_BLOCK
) {
2767 auxent
->u
.auxent
.x_sym
.x_fcnary
.x_fcn
.x_endndx
.p
= table_base
+
2768 auxent
->u
.auxent
.x_sym
.x_fcnary
.x_fcn
.x_endndx
.l
;
2769 auxent
->fix_end
= 1;
2771 if (auxent
->u
.auxent
.x_sym
.x_tagndx
.l
!= 0) {
2772 auxent
->u
.auxent
.x_sym
.x_tagndx
.p
=
2773 table_base
+ auxent
->u
.auxent
.x_sym
.x_tagndx
.l
;
2774 auxent
->fix_tag
= 1;
2778 #endif /* NO_COFF_SYMBOLS */
2781 DEFUN(coff_set_section_contents
,(abfd
, section
, location
, offset
, count
),
2786 bfd_size_type count
)
2788 if (abfd
->output_has_begun
== false) /* set by bfd.c handler */
2789 coff_compute_section_file_positions(abfd
);
2792 /* If this is a .lib section, bump the vma address so that it
2793 winds up being the number of .lib sections output. This is
2794 right for SVR3.2. Shared libraries should probably get more
2795 generic support. Ian Taylor <ian@cygnus.com>. */
2796 if (strcmp (section
->name
, _LIB
) == 0)
2800 bfd_seek(abfd
, (file_ptr
) (section
->filepos
+ offset
), SEEK_SET
);
2803 return (bfd_write(location
, 1, count
, abfd
) == count
) ? true : false;
2809 coff_close_and_cleanup(abfd
)
2812 if (!bfd_read_p(abfd
))
2813 switch (abfd
->format
) {
2815 if (!_bfd_write_archive_contents(abfd
))
2819 if (!coff_write_object_contents(abfd
))
2823 bfd_error
= invalid_operation
;
2827 /* We depend on bfd_close to free all the memory on the obstack. */
2828 /* FIXME if bfd_release is not using obstacks! */
2834 buy_and_read(abfd
, where
, seek_direction
, size
)
2840 PTR area
= (PTR
) bfd_alloc(abfd
, size
);
2842 bfd_error
= no_memory
;
2845 bfd_seek(abfd
, where
, seek_direction
);
2846 if (bfd_read(area
, 1, size
, abfd
) != size
) {
2847 bfd_error
= system_call_error
;
2851 } /* buy_and_read() */
2854 #ifndef NO_COFF_SYMBOLS
2857 DEFUN(build_string_table
,(abfd
),
2860 char string_table_size_buffer
[4];
2861 unsigned int string_table_size
;
2864 /* At this point we should be "seek"'d to the end of the
2865 symbols === the symbol table size. */
2866 if (bfd_read((char *) string_table_size_buffer
,
2867 sizeof(string_table_size_buffer
),
2868 1, abfd
) != sizeof(string_table_size
)) {
2869 bfd_error
= system_call_error
;
2873 string_table_size
= bfd_h_get_32(abfd
, (bfd_byte
*) string_table_size_buffer
);
2875 if ((string_table
= (PTR
) bfd_alloc(abfd
, string_table_size
-= 4)) == NULL
) {
2876 bfd_error
= no_memory
;
2878 } /* on mallocation error */
2879 if (bfd_read(string_table
, string_table_size
, 1, abfd
) != string_table_size
) {
2880 bfd_error
= system_call_error
;
2883 return string_table
;
2886 /* Allocate space for the ".debug" section, and read it.
2887 We did not read the debug section until now, because
2888 we didn't want to go to the trouble until someone needed it. */
2891 DEFUN(build_debug_section
,(abfd
),
2894 char *debug_section
;
2897 asection
*sect
= bfd_get_section_by_name (abfd
, ".debug");
2900 bfd_error
= no_debug_section
;
2904 debug_section
= (PTR
) bfd_alloc (abfd
,
2905 bfd_get_section_size_before_reloc (sect
));
2906 if (debug_section
== NULL
) {
2907 bfd_error
= no_memory
;
2911 /* Seek to the beginning of the `.debug' section and read it.
2912 Save the current position first; it is needed by our caller.
2913 Then read debug section and reset the file pointer. */
2915 position
= bfd_tell (abfd
);
2916 bfd_seek (abfd
, sect
->filepos
, SEEK_SET
);
2917 if (bfd_read (debug_section
,
2918 bfd_get_section_size_before_reloc (sect
), 1, abfd
)
2919 != bfd_get_section_size_before_reloc(sect
)) {
2920 bfd_error
= system_call_error
;
2923 bfd_seek (abfd
, position
, SEEK_SET
);
2924 return debug_section
;
2928 /* Return a pointer to a malloc'd copy of 'name'. 'name' may not be
2929 \0-terminated, but will not exceed 'maxlen' characters. The copy *will*
2930 be \0-terminated. */
2932 DEFUN(copy_name
,(abfd
, name
, maxlen
),
2940 for (len
= 0; len
< maxlen
; ++len
) {
2941 if (name
[len
] == '\0') {
2946 if ((newname
= (PTR
) bfd_alloc(abfd
, len
+1)) == NULL
) {
2947 bfd_error
= no_memory
;
2950 strncpy(newname
, name
, len
);
2951 newname
[len
] = '\0';
2956 /* Read a symbol table into freshly bfd_allocated memory, swap it, and
2957 knit the symbol names into a normalized form. By normalized here I
2958 mean that all symbols have an n_offset pointer that points to a null-
2959 terminated string. */
2961 #ifndef SYMNAME_IN_DEBUG
2962 #define SYMNAME_IN_DEBUG(x) 0
2965 static combined_entry_type
*
2966 DEFUN(get_normalized_symtab
,(abfd
),
2969 combined_entry_type
*internal
;
2970 combined_entry_type
*internal_ptr
;
2971 combined_entry_type
*symbol_ptr
;
2972 combined_entry_type
*internal_end
;
2976 char *string_table
= NULL
;
2977 char *debug_section
= NULL
;
2980 unsigned int raw_size
;
2981 if (obj_raw_syments(abfd
) != (combined_entry_type
*)NULL
) {
2982 return obj_raw_syments(abfd
);
2984 if ((size
= bfd_get_symcount(abfd
) * sizeof(combined_entry_type
)) == 0) {
2985 bfd_error
= no_symbols
;
2989 internal
= (combined_entry_type
*)bfd_alloc(abfd
, size
);
2990 internal_end
= internal
+ bfd_get_symcount(abfd
);
2992 raw_size
= bfd_get_symcount(abfd
) * SYMESZ
;
2993 raw
= (SYMENT
*)bfd_alloc(abfd
,raw_size
);
2995 if (bfd_seek(abfd
, obj_sym_filepos(abfd
), SEEK_SET
) == -1
2996 || bfd_read((PTR
)raw
, raw_size
, 1, abfd
) != raw_size
) {
2997 bfd_error
= system_call_error
;
3000 /* mark the end of the symbols */
3001 raw_end
= raw
+ bfd_get_symcount(abfd
);
3003 FIXME SOMEDAY. A string table size of zero is very weird, but
3004 probably possible. If one shows up, it will probably kill us.
3007 /* Swap all the raw entries */
3008 for (raw_src
= raw
, internal_ptr
= internal
;
3010 raw_src
++, internal_ptr
++) {
3013 coff_swap_sym_in(abfd
, (PTR
)raw_src
, (PTR
)&internal_ptr
->u
.syment
);
3014 internal_ptr
->fix_tag
= 0;
3015 internal_ptr
->fix_end
= 0;
3016 symbol_ptr
= internal_ptr
;
3019 i
< symbol_ptr
->u
.syment
.n_numaux
;
3025 internal_ptr
->fix_tag
= 0;
3026 internal_ptr
->fix_end
= 0;
3027 coff_swap_aux_in(abfd
, (char *)(raw_src
),
3028 symbol_ptr
->u
.syment
.n_type
,
3029 symbol_ptr
->u
.syment
.n_sclass
,
3030 &(internal_ptr
->u
.auxent
));
3031 /* Remember that bal entries arn't pointerized */
3032 if (i
!= 1 || symbol_ptr
->u
.syment
.n_sclass
!= C_LEAFPROC
)
3035 coff_pointerize_aux(abfd
,
3037 symbol_ptr
->u
.syment
.n_type
,
3038 symbol_ptr
->u
.syment
.n_sclass
,
3045 /* Free all the raw stuff */
3046 bfd_release(abfd
, raw
);
3048 for (internal_ptr
= internal
; internal_ptr
< internal_end
;
3051 if (internal_ptr
->u
.syment
.n_sclass
== C_FILE
) {
3052 /* make a file symbol point to the name in the auxent, since
3053 the text ".file" is redundant */
3054 if ((internal_ptr
+1)->u
.auxent
.x_file
.x_n
.x_zeroes
== 0) {
3055 /* the filename is a long one, point into the string table */
3056 if (string_table
== NULL
) {
3057 string_table
= build_string_table(abfd
);
3060 internal_ptr
->u
.syment
._n
._n_n
._n_offset
=
3061 (int) (string_table
- 4 +
3062 (internal_ptr
+1)->u
.auxent
.x_file
.x_n
.x_offset
);
3065 /* ordinary short filename, put into memory anyway */
3066 internal_ptr
->u
.syment
._n
._n_n
._n_offset
= (int)
3067 copy_name(abfd
, (internal_ptr
+1)->u
.auxent
.x_file
.x_fname
,
3072 if (internal_ptr
->u
.syment
._n
._n_n
._n_zeroes
!= 0) {
3073 /* This is a "short" name. Make it long. */
3074 unsigned long i
= 0;
3075 char *newstring
= NULL
;
3077 /* find the length of this string without walking into memory
3079 for (i
= 0; i
< 8; ++i
) {
3080 if (internal_ptr
->u
.syment
._n
._n_name
[i
] == '\0') {
3082 } /* if end of string */
3083 } /* possible lengths of this string. */
3085 if ((newstring
= (PTR
) bfd_alloc(abfd
, ++i
)) == NULL
) {
3086 bfd_error
= no_memory
;
3089 memset(newstring
, 0, i
);
3090 strncpy(newstring
, internal_ptr
->u
.syment
._n
._n_name
, i
-1);
3091 internal_ptr
->u
.syment
._n
._n_n
._n_offset
= (int) newstring
;
3092 internal_ptr
->u
.syment
._n
._n_n
._n_zeroes
= 0;
3094 else if (!SYMNAME_IN_DEBUG(&internal_ptr
->u
.syment
)) {
3095 /* Long name already. Point symbol at the string in the table. */
3096 if (string_table
== NULL
) {
3097 string_table
= build_string_table(abfd
);
3099 internal_ptr
->u
.syment
._n
._n_n
._n_offset
= (int)
3100 (string_table
- 4 + internal_ptr
->u
.syment
._n
._n_n
._n_offset
);
3103 /* Long name in debug section. Very similar. */
3104 if (debug_section
== NULL
) {
3105 debug_section
= build_debug_section(abfd
);
3107 internal_ptr
->u
.syment
._n
._n_n
._n_offset
= (int)
3108 (debug_section
+ internal_ptr
->u
.syment
._n
._n_n
._n_offset
);
3111 internal_ptr
+= internal_ptr
->u
.syment
.n_numaux
;
3114 obj_raw_syments(abfd
) = internal
;
3117 } /* get_normalized_symtab() */
3119 #endif /* NO_COFF_SYMBOLS */
3123 DEFUN(section_from_bfd_index
,(abfd
, index
),
3127 struct sec
*answer
= abfd
->sections
;
3131 return &bfd_abs_section
;
3133 if (index
== N_UNDEF
)
3135 return &bfd_und_section
;
3137 if(index
== N_DEBUG
)
3139 return &bfd_debug_section
;
3144 if (answer
->target_index
== index
)
3146 answer
= answer
->next
;
3149 return &bfd_und_section
; /* For gcc -W and lint. Never executed. */
3152 #ifndef NO_COFF_LINENOS
3158 Creating the linenumber table is done by reading in the entire
3159 coff linenumber table, and creating another table for internal use.
3161 A coff line number table is structured so that each function
3162 is marked as having a line number of 0. Each line within the
3163 function is an offset from the first line in the function. The
3164 base of the line number information for the table is stored in
3165 the symbol associated with the function.
3167 The information is copied from the external to the internal
3168 table, and each symbol which marks a function is marked by
3171 How does this work ?
3176 coff_slurp_line_table(abfd
, asect
)
3180 LINENO
*native_lineno
;
3181 alent
*lineno_cache
;
3183 BFD_ASSERT(asect
->lineno
== (alent
*) NULL
);
3185 native_lineno
= (LINENO
*) buy_and_read(abfd
,
3186 asect
->line_filepos
,
3189 asect
->lineno_count
));
3191 (alent
*) bfd_alloc(abfd
, (size_t) ((asect
->lineno_count
+ 1) * sizeof(alent
)));
3192 if (lineno_cache
== NULL
) {
3193 bfd_error
= no_memory
;
3196 unsigned int counter
= 0;
3197 alent
*cache_ptr
= lineno_cache
;
3198 LINENO
*src
= native_lineno
;
3200 while (counter
< asect
->lineno_count
) {
3201 struct internal_lineno dst
;
3202 coff_swap_lineno_in(abfd
, src
, &dst
);
3203 cache_ptr
->line_number
= dst
.l_lnno
;
3205 if (cache_ptr
->line_number
== 0) {
3206 coff_symbol_type
*sym
=
3207 (coff_symbol_type
*) (dst
.l_addr
.l_symndx
3208 + obj_raw_syments(abfd
))->u
.syment
._n
._n_n
._n_zeroes
;
3209 cache_ptr
->u
.sym
= (asymbol
*) sym
;
3210 sym
->lineno
= cache_ptr
;
3213 cache_ptr
->u
.offset
= dst
.l_addr
.l_paddr
3214 - bfd_section_vma(abfd
, asect
);
3215 } /* If no linenumber expect a symbol index */
3221 cache_ptr
->line_number
= 0;
3224 asect
->lineno
= lineno_cache
;
3225 /* FIXME, free native_lineno here, or use alloca or something. */
3227 } /* coff_slurp_line_table() */
3229 #endif /* NO_COFF_LINENOS */
3231 #ifndef NO_COFF_LINENOS
3234 DEFUN(coff_slurp_symbol_table
,(abfd
),
3237 combined_entry_type
*native_symbols
;
3238 coff_symbol_type
*cached_area
;
3239 unsigned int *table_ptr
;
3241 unsigned int number_of_symbols
= 0;
3242 if (obj_symbols(abfd
))
3244 bfd_seek(abfd
, obj_sym_filepos(abfd
), SEEK_SET
);
3246 /* Read in the symbol table */
3247 if ((native_symbols
= get_normalized_symtab(abfd
)) == NULL
) {
3251 /* Allocate enough room for all the symbols in cached form */
3253 (coff_symbol_type
*)
3254 bfd_alloc(abfd
, (size_t) (bfd_get_symcount(abfd
) * sizeof(coff_symbol_type
)));
3256 if (cached_area
== NULL
) {
3257 bfd_error
= no_memory
;
3262 bfd_alloc(abfd
, (size_t) (bfd_get_symcount(abfd
) * sizeof(unsigned int)));
3264 if (table_ptr
== NULL
) {
3265 bfd_error
= no_memory
;
3270 coff_symbol_type
*dst
= cached_area
;
3271 unsigned int last_native_index
= bfd_get_symcount(abfd
);
3272 unsigned int this_index
= 0;
3273 while (this_index
< last_native_index
) {
3274 combined_entry_type
*src
= native_symbols
+ this_index
;
3275 table_ptr
[this_index
] = number_of_symbols
;
3276 dst
->symbol
.the_bfd
= abfd
;
3278 dst
->symbol
.name
= (char *)(src
->u
.syment
._n
._n_n
._n_offset
);
3280 We use the native name field to point to the cached field
3282 src
->u
.syment
._n
._n_n
._n_zeroes
= (int) dst
;
3283 dst
->symbol
.section
= section_from_bfd_index(abfd
,
3284 src
->u
.syment
.n_scnum
);
3285 dst
->symbol
.flags
= 0;
3286 dst
->done_lineno
= false;
3288 switch (src
->u
.syment
.n_sclass
) {
3292 dst
->symbol
.value
= src
->u
.syment
.n_value
- dst
->symbol
.section
->vma
;
3293 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
3294 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
3296 /* Fall through to next case */
3304 if ((src
->u
.syment
.n_scnum
) == 0) {
3305 if ((src
->u
.syment
.n_value
) == 0) {
3306 dst
->symbol
.section
= &bfd_und_section
;
3307 dst
->symbol
.value
= 0;
3310 dst
->symbol
.section
= &bfd_com_section
;
3311 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
3316 Base the value as an index from the base of the
3320 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
3321 dst
->symbol
.value
= src
->u
.syment
.n_value
- dst
->symbol
.section
->vma
;
3323 if (ISFCN((src
->u
.syment
.n_type
))) {
3325 A function ext does not go at the end of a file
3327 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
3334 case C_STAT
: /* static */
3336 case C_LEAFSTAT
: /* static leaf procedure */
3338 case C_LABEL
: /* label */
3339 if (src
->u
.syment
.n_scnum
== -2)
3340 dst
->symbol
.flags
= BSF_DEBUGGING
;
3342 dst
->symbol
.flags
= BSF_LOCAL
;
3344 Base the value as an index from the base of the section, if
3347 if (dst
->symbol
.section
)
3348 dst
->symbol
.value
= (src
->u
.syment
.n_value
) -
3349 dst
->symbol
.section
->vma
;
3351 dst
->symbol
.value
= (src
->u
.syment
.n_value
) ;
3354 case C_MOS
: /* member of structure */
3355 case C_EOS
: /* end of structure */
3356 #ifdef NOTDEF /* C_AUTOARG has the same value */
3358 case C_GLBLREG
: /* A29k-specific storage class */
3361 case C_REGPARM
: /* register parameter */
3362 case C_REG
: /* register variable */
3364 case C_AUTOARG
: /* 960-specific storage class */
3366 case C_TPDEF
: /* type definition */
3368 case C_AUTO
: /* automatic variable */
3369 case C_FIELD
: /* bit field */
3370 case C_ENTAG
: /* enumeration tag */
3371 case C_MOE
: /* member of enumeration */
3372 case C_MOU
: /* member of union */
3373 case C_UNTAG
: /* union tag */
3374 dst
->symbol
.flags
= BSF_DEBUGGING
;
3375 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
3378 case C_FILE
: /* file name */
3379 case C_STRTAG
: /* structure tag */
3381 case C_BINCL
: /* beginning of include file */
3382 case C_EINCL
: /* ending of include file */
3395 dst
->symbol
.flags
= BSF_DEBUGGING
;
3396 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
3399 case C_BLOCK
: /* ".bb" or ".eb" */
3400 case C_FCN
: /* ".bf" or ".ef" */
3401 case C_EFCN
: /* physical end of function */
3402 dst
->symbol
.flags
= BSF_LOCAL
;
3404 Base the value as an index from the base of the section
3406 dst
->symbol
.value
= (src
->u
.syment
.n_value
) - dst
->symbol
.section
->vma
;
3410 case C_EXTDEF
: /* external definition */
3411 case C_ULABEL
: /* undefined label */
3412 case C_USTATIC
: /* undefined static */
3413 case C_LINE
: /* line # reformatted as symbol table entry */
3414 case C_ALIAS
: /* duplicate tag */
3415 case C_HIDDEN
: /* ext symbol in dmert public lib */
3418 fprintf(stderr
,"Unrecognized storage class %d\n",
3419 src
->u
.syment
.n_sclass
);
3421 dst
->symbol
.flags
= BSF_DEBUGGING
;
3422 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
3426 /* BFD_ASSERT(dst->symbol.flags != 0);*/
3430 dst
->symbol
.udata
= 0;
3431 dst
->lineno
= (alent
*) NULL
;
3432 this_index
+= (src
->u
.syment
.n_numaux
) + 1;
3434 number_of_symbols
++;
3435 } /* walk the native symtab */
3436 } /* bfdize the native symtab */
3438 obj_symbols(abfd
) = cached_area
;
3439 obj_raw_syments(abfd
) = native_symbols
;
3441 obj_conv_table_size (abfd
) = bfd_get_symcount (abfd
);
3442 bfd_get_symcount(abfd
) = number_of_symbols
;
3443 obj_convert(abfd
) = table_ptr
;
3444 /* Slurp the line tables for each section too */
3449 coff_slurp_line_table(abfd
, p
);
3454 } /* coff_slurp_symbol_table() */
3457 coff_get_symtab_upper_bound(abfd
)
3460 if (!coff_slurp_symbol_table(abfd
))
3463 return (bfd_get_symcount(abfd
) + 1) * (sizeof(coff_symbol_type
*));
3468 DEFUN(coff_get_symtab
, (abfd
, alocation
),
3470 asymbol
**alocation
)
3472 unsigned int counter
= 0;
3473 coff_symbol_type
*symbase
;
3474 coff_symbol_type
**location
= (coff_symbol_type
**) (alocation
);
3475 if (!coff_slurp_symbol_table(abfd
))
3478 symbase
= obj_symbols(abfd
);
3479 while (counter
< bfd_get_symcount(abfd
))
3481 /* This nasty code looks at the symbol to decide whether or
3482 not it is descibes a constructor/destructor entry point. It
3483 is structured this way to (hopefully) speed non matches */
3485 if (0 && symbase
->symbol
.name
[9] == '$')
3487 bfd_constructor_entry(abfd
,
3488 (asymbol
**)location
,
3489 symbase
->symbol
.name
[10] == 'I' ?
3493 *(location
++) = symbase
++;
3497 return bfd_get_symcount(abfd
);
3500 #endif /* NO_COFF_SYMBOLS */
3503 coff_get_reloc_upper_bound(abfd
, asect
)
3507 if (bfd_get_format(abfd
) != bfd_object
) {
3508 bfd_error
= invalid_operation
;
3511 return (asect
->reloc_count
+ 1) * sizeof(arelent
*);
3518 Coff relocations are easily transformed into the internal BFD form
3521 Reading a coff relocation table is done in the following stages:
3523 o The entire coff relocation table is read into memory.
3525 o Each relocation is processed in turn, first it is swapped from the
3526 external to the internal form.
3528 o The symbol referenced in the relocation's symbol index is
3529 turned intoa pointer into the canonical symbol table. Note
3530 that this table is the same as the one returned by a call to
3531 @code{bfd_canonicalize_symtab}. The back end will call the
3532 routine and save the result if a canonicalization hasn't been done.
3534 o The reloc index is turned into a pointer to a howto
3535 structure, in a back end specific way. For instance, the 386
3536 and 960 use the @code{r_type} to directly produce an index
3537 into a howto table vector; the 88k subtracts a number from the
3538 @code{r_type} field and creates an addend field.
3544 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
3545 if (ptr && ptr->the_bfd == abfd \
3546 && ((ptr->flags & BSF_OLD_COMMON)== 0)) \
3548 cache_ptr->addend = -(ptr->section->vma + ptr->value); \
3551 cache_ptr->addend = 0; \
3556 DEFUN(coff_slurp_reloc_table
,(abfd
, asect
, symbols
),
3561 RELOC
*native_relocs
;
3562 arelent
*reloc_cache
;
3567 if (asect
->relocation
)
3569 if (asect
->reloc_count
== 0)
3571 if (asect
->flags
& SEC_CONSTRUCTOR
)
3573 #ifndef NO_COFF_SYMBOLS
3574 if (!coff_slurp_symbol_table(abfd
))
3578 (RELOC
*) buy_and_read(abfd
,
3582 asect
->reloc_count
));
3583 reloc_cache
= (arelent
*)
3584 bfd_alloc(abfd
, (size_t) (asect
->reloc_count
* sizeof(arelent
)));
3586 if (reloc_cache
== NULL
) {
3587 bfd_error
= no_memory
;
3592 for (idx
= 0; idx
< asect
->reloc_count
; idx
++)
3594 #ifdef RELOC_PROCESSING
3595 struct internal_reloc dst
;
3596 struct external_reloc
*src
;
3598 cache_ptr
= reloc_cache
+ idx
;
3599 src
= native_relocs
+ idx
;
3600 bfd_swap_reloc_in(abfd
, src
, &dst
);
3602 RELOC_PROCESSING(cache_ptr
, &dst
, symbols
, abfd
, asect
);
3604 struct internal_reloc dst
;
3606 struct external_reloc
*src
;
3608 cache_ptr
= reloc_cache
+ idx
;
3609 src
= native_relocs
+ idx
;
3611 bfd_swap_reloc_in(abfd
, src
, &dst
);
3614 cache_ptr
->address
= dst
.r_vaddr
;
3616 if (dst
.r_symndx
!= -1)
3618 /* @@ Should never be greater than count of symbols! */
3619 if (dst
.r_symndx
>= obj_conv_table_size (abfd
))
3621 cache_ptr
->sym_ptr_ptr
= symbols
+ obj_convert(abfd
)[dst
.r_symndx
];
3622 ptr
= *(cache_ptr
->sym_ptr_ptr
);
3626 cache_ptr
->sym_ptr_ptr
= bfd_abs_section
.symbol_ptr_ptr
;
3631 The symbols definitions that we have read in have been
3632 relocated as if their sections started at 0. But the offsets
3633 refering to the symbols in the raw data have not been
3634 modified, so we have to have a negative addend to compensate.
3636 Note that symbols which used to be common must be left alone */
3638 /* Calculate any reloc addend by looking at the symbol */
3639 CALC_ADDEND(abfd
, ptr
, dst
, cache_ptr
);
3641 cache_ptr
->address
-= asect
->vma
;
3642 /* !! cache_ptr->section = (asection *) NULL;*/
3644 /* Fill in the cache_ptr->howto field from dst.r_type */
3645 RTYPE2HOWTO(cache_ptr
, &dst
);
3650 asect
->relocation
= reloc_cache
;
3655 /* This is stupid. This function should be a boolean predicate */
3657 DEFUN(coff_canonicalize_reloc
, (abfd
, section
, relptr
, symbols
),
3660 arelent
**relptr AND
3663 arelent
*tblptr
= section
->relocation
;
3664 unsigned int count
= 0;
3667 if (section
->flags
& SEC_CONSTRUCTOR
)
3669 /* this section has relocs made up by us, they are not in the
3670 file, so take them out of their chain and place them into
3671 the data area provided */
3672 arelent_chain
*chain
= section
->constructor_chain
;
3673 for (count
= 0; count
< section
->reloc_count
; count
++)
3675 *relptr
++ = &chain
->relent
;
3676 chain
= chain
->next
;
3682 coff_slurp_reloc_table(abfd
, section
, symbols
);
3685 tblptr
= section
->relocation
;
3689 for (; count
++ < section
->reloc_count
;)
3690 *relptr
++ = tblptr
++;
3695 return section
->reloc_count
;
3698 #ifndef NO_COFF_SYMBOLS
3701 provided a BFD, a section and an offset into the section, calculate and
3702 return the name of the source file and the line nearest to the wanted
3707 DEFUN(coff_find_nearest_line
,(abfd
,
3715 asection
*section AND
3716 asymbol
**ignore_symbols AND
3718 CONST
char **filename_ptr AND
3719 CONST
char **functionname_ptr AND
3720 unsigned int *line_ptr
)
3722 static bfd
*cache_abfd
;
3723 static asection
*cache_section
;
3724 static bfd_vma cache_offset
;
3725 static unsigned int cache_i
;
3726 static alent
*cache_l
;
3729 coff_data_type
*cof
= coff_data(abfd
);
3730 /* Run through the raw syments if available */
3731 combined_entry_type
*p
;
3733 unsigned int line_base
= 0;
3737 *functionname_ptr
= 0;
3740 /* Don't try and find line numbers in a non coff file */
3741 if (abfd
->xvec
->flavour
!= bfd_target_coff_flavour
)
3747 p
= cof
->raw_syments
;
3749 for (i
= 0; i
< cof
->raw_syment_count
; i
++) {
3750 if (p
->u
.syment
.n_sclass
== C_FILE
) {
3751 /* File name has been moved into symbol */
3752 *filename_ptr
= (char *) p
->u
.syment
._n
._n_n
._n_offset
;
3755 p
+= 1 + p
->u
.syment
.n_numaux
;
3757 /* Now wander though the raw linenumbers of the section */
3759 If this is the same BFD as we were previously called with and this is
3760 the same section, and the offset we want is further down then we can
3761 prime the lookup loop
3763 if (abfd
== cache_abfd
&&
3764 section
== cache_section
&&
3765 offset
>= cache_offset
) {
3771 l
= section
->lineno
;
3774 for (; i
< section
->lineno_count
; i
++) {
3775 if (l
->line_number
== 0) {
3776 /* Get the symbol this line number points at */
3777 coff_symbol_type
*coff
= (coff_symbol_type
*) (l
->u
.sym
);
3778 *functionname_ptr
= coff
->symbol
.name
;
3780 combined_entry_type
*s
= coff
->native
;
3781 s
= s
+ 1 + s
->u
.syment
.n_numaux
;
3783 S should now point to the .bf of the function
3785 if (s
->u
.syment
.n_numaux
) {
3787 The linenumber is stored in the auxent
3789 union internal_auxent
*a
= &((s
+ 1)->u
.auxent
);
3790 line_base
= a
->x_sym
.x_misc
.x_lnsz
.x_lnno
;
3795 if (l
->u
.offset
> offset
)
3797 *line_ptr
= l
->line_number
+ line_base
+ 1;
3803 cache_section
= section
;
3804 cache_offset
= offset
;
3813 coff_sym_filepos(abfd
)
3816 return obj_sym_filepos(abfd
);
3820 #endif /* NO_COFF_SYMBOLS */
3824 DEFUN(coff_sizeof_headers
,(abfd
, reloc
),
3830 if (reloc
== false) {
3831 size
= FILHSZ
+ AOUTSZ
;
3837 size
+= abfd
->section_count
* SCNHSZ
;
3842 DEFUN(get_value
,(reloc
, seclet
),
3844 bfd_seclet_type
*seclet
)
3847 asymbol
*symbol
= *(reloc
->sym_ptr_ptr
);
3848 /* A symbol holds a pointer to a section, and an offset from the
3849 base of the section. To relocate, we find where the section will
3850 live in the output and add that in */
3852 if (symbol
->section
== &bfd_und_section
)
3854 /* Ouch, this is an undefined symbol.. */
3855 bfd_error_vector
.undefined_symbol(reloc
, seclet
);
3856 value
= symbol
->value
;
3860 value
= symbol
->value
+
3861 symbol
->section
->output_offset
+
3862 symbol
->section
->output_section
->vma
;
3866 /* Add the value contained in the relocation */
3867 value
+= (short)((reloc
->addend
) & 0xffff);
3873 DEFUN(perform_slip
,(s
, slip
, input_section
, value
),
3875 unsigned int slip AND
3876 asection
*input_section AND
3880 /* Find all symbols past this point, and make them know
3885 if (p
->section
== input_section
)
3887 /* This was pointing into this section, so mangle it */
3888 if (p
->value
> value
)
3898 DEFUN(movb1
,(input_section
, symbols
, r
, shrink
),
3899 asection
*input_section AND
3900 asymbol
**symbols AND
3902 unsigned int shrink
)
3904 bfd_vma value
= get_value(r
,0);
3906 if (value
>= 0xff00)
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(jmp1
,(input_section
, symbols
, r
, shrink
),
3926 asection
*input_section AND
3927 asymbol
**symbols AND
3929 unsigned int shrink
)
3933 bfd_vma value
= get_value(r
, 0);
3935 bfd_vma dot
= input_section
->output_section
->vma
+
3936 input_section
->output_offset
+ r
->address
;
3939 /* See if the address we're looking at within 127 bytes of where
3940 we are, if so then we can use a small branch rather than the
3941 jump we were going to */
3943 gap
= value
- (dot
- shrink
);
3946 if (-120 < (long)gap
&& (long)gap
< 120 )
3949 /* Change the reloc type from 16bit, possible 8 to 8bit
3951 r
->howto
= r
->howto
+ 1;
3952 /* The place to relc moves back by one */
3955 /* This will be two bytes smaller in the long run */
3957 perform_slip(symbols
, 2, input_section
, r
->address
-shrink
+1);
3965 DEFUN(bfd_coff_relax_section
,(abfd
, i
, symbols
),
3971 /* Get enough memory to hold the stuff */
3972 bfd
*input_bfd
= i
->owner
;
3973 asection
*input_section
= i
;
3975 boolean
new = false;
3977 bfd_size_type reloc_size
= bfd_get_reloc_upper_bound(input_bfd
,
3979 arelent
**reloc_vector
= (arelent
**)bfd_xmalloc(reloc_size
);
3981 /* Get the relocs and think about them */
3982 if (bfd_canonicalize_reloc(input_bfd
,
3988 for (parent
= reloc_vector
; *parent
; parent
++)
3990 arelent
*r
= *parent
;
3991 switch (r
->howto
->type
) {
3999 shrink
= movb1(input_section
, symbols
, r
, shrink
);
4004 shrink
= jmp1(input_section
, symbols
, r
, shrink
);
4012 input_section
->_cooked_size
-= shrink
;
4013 free((char *)reloc_vector
);
4018 DEFUN(bfd_coff_get_relocated_section_contents
,(in_abfd
, seclet
, data
),
4020 bfd_seclet_type
*seclet AND
4024 /* Get enough memory to hold the stuff */
4025 bfd
*input_bfd
= seclet
->u
.indirect
.section
->owner
;
4026 asection
*input_section
= seclet
->u
.indirect
.section
;
4027 bfd_size_type reloc_size
= bfd_get_reloc_upper_bound(input_bfd
,
4029 arelent
**reloc_vector
= (arelent
**)bfd_xmalloc(reloc_size
);
4031 /* read in the section */
4032 bfd_get_section_contents(input_bfd
,
4036 input_section
->_raw_size
);
4039 if (bfd_canonicalize_reloc(input_bfd
,
4042 seclet
->u
.indirect
.symbols
) )
4044 arelent
**parent
= reloc_vector
;
4049 unsigned int dst_address
= 0;
4050 unsigned int src_address
= 0;
4054 /* Find how long a run we can do */
4055 while (dst_address
< seclet
->size
)
4061 /* Note that the relaxing didn't tie up the addresses in the
4062 relocation, so we use the original address to work out the
4063 run of non-relocated data */
4064 run
= reloc
->address
- src_address
;
4070 run
= seclet
->size
- dst_address
;
4072 /* Copy the bytes */
4073 for (idx
= 0; idx
< run
; idx
++)
4075 data
[dst_address
++] = data
[src_address
++];
4078 /* Now do the relocation */
4082 switch (reloc
->howto
->type
)
4085 /* Speciial relaxed type */
4087 bfd_vma dot
= seclet
->offset
+ dst_address
+ seclet
->u
.indirect
.section
->output_section
->vma
;
4088 int gap
= get_value(reloc
,seclet
)-dot
-1;
4089 if ((gap
& ~0xff ) != 0 &&((gap
& 0xff00)!= 0xff00)) abort();
4091 bfd_put_8(in_abfd
,gap
, data
+dst_address
);
4093 switch (data
[dst_address
-1])
4098 bfd_put_8(in_abfd
, 0x55, data
+dst_address
-1);
4102 bfd_put_8(in_abfd
, 0x40, data
+dst_address
-1);
4121 /* Special relaxed type, there will be a gap between where we
4122 get stuff from and where we put stuff to now
4124 for a mov.b @aa:16 -> mov.b @aa:8
4125 opcode 0x6a 0x0y offset
4128 if (data
[dst_address
-1] != 0x6a)
4130 switch (data
[src_address
] & 0xf0)
4134 data
[dst_address
-1] = (data
[src_address
] & 0xf) | 0x20;
4138 data
[dst_address
-1] = (data
[src_address
] & 0xf) | 0x30;
4144 /* the offset must fit ! after all, what was all the relaxing
4147 bfd_put_8(in_abfd
, get_value(reloc
, seclet
), data
+ dst_address
);
4149 /* Note the magic - src goes up by two bytes, but dst by only
4158 bfd_vma dot
= seclet
->offset
+ dst_address
+ seclet
->u
.indirect
.section
->output_section
->vma
;
4159 int gap
= get_value(reloc
,seclet
)-dot
;
4160 if (gap
> 127 || gap
< -128)
4162 bfd_error_vector
.reloc_value_truncated(reloc
, seclet
);
4165 bfd_put_8(in_abfd
,gap
, data
+dst_address
);
4174 unsigned int gap
=get_value(reloc
,seclet
);
4175 if (gap
> 0xff && gap
< ~0xff)
4177 bfd_error_vector
.reloc_value_truncated(reloc
, seclet
);
4180 bfd_put_8(in_abfd
, gap
, data
+dst_address
);
4188 /* A relword which would have like to have been a pcrel */
4190 /* A relword which would like to have been modified but
4193 bfd_put_16(in_abfd
, get_value(reloc
,seclet
), data
+dst_address
);
4208 free((char *)reloc_vector
);
4214 #define coff_core_file_failing_command _bfd_dummy_core_file_failing_command
4215 #define coff_core_file_failing_signal _bfd_dummy_core_file_failing_signal
4216 #define coff_core_file_matches_executable_p _bfd_dummy_core_file_matches_executable_p
4217 #define coff_slurp_armap bfd_slurp_coff_armap
4218 #define coff_slurp_extended_name_table _bfd_slurp_extended_name_table
4219 #define coff_truncate_arname bfd_dont_truncate_arname
4220 #define coff_openr_next_archived_file bfd_generic_openr_next_archived_file
4221 #define coff_generic_stat_arch_elt bfd_generic_stat_arch_elt
4222 #define coff_get_section_contents bfd_generic_get_section_contents
4223 #define coff_close_and_cleanup bfd_generic_close_and_cleanup
4225 #define coff_bfd_debug_info_start bfd_void
4226 #define coff_bfd_debug_info_end bfd_void
4227 #define coff_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
4228 #define coff_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
4229 #define coff_bfd_relax_section bfd_generic_relax_section