Fixed the whitespace
[deliverable/binutils-gdb.git] / bfd / coffcode.h
1 /* Support for the generic parts of most COFF variants, for BFD.
2 Copyright (C) 1990-1991 Free Software Foundation, Inc.
3 Written by Cygnus Support.
4
5 This file is part of BFD, the Binary File Descriptor library.
6
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.
11
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.
16
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. */
20
21 /*
22 Most of this hacked by Steve Chamberlain,
23 sac@cygnus.com
24 */
25 /*
26
27 SECTION
28 coff backends
29
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
33 extra field.
34
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}.
47
48
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}.
53
54 SUBSECTION
55 Porting To A New Version of Coff
56
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.
69
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.
78
79 SUBSECTION
80 How The Coff Backend Works
81
82 SUBSUBSECTION
83 Bit Twiddling
84
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.
116
117 SUBSUBSECTION
118 Symbol Reading
119
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".
124
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
140 (@code{".file"}).
141
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.
147
148
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.
155
156 Any linenumbers are read from the coff file too, and attached
157 to the symbols which own the functions the linenumbers belong to.
158
159 SUBSUBSECTION
160 Symbol Writing
161
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.
167
168 When the symbols have come from a coff file then all the
169 debugging information is preserved.
170
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.
175
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.
181
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}.
192
193 o coff_mangle_symbols
194
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
200 being referenced.
201
202 o coff_write_symbols
203
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.
207
208 */
209
210 /*
211 INTERNAL_DEFINITION
212 coff_symbol_type
213
214 DESCRIPTION
215 The hidden information for an asymbol is described in a
216 coff_ptr_struct, which is typedefed to a combined_entry_type
217
218 CODE_FRAGMENT
219 .
220 .typedef struct coff_ptr_struct
221 .{
222 .
223 . {* Remembers the offset from the first symbol in the file for
224 . this symbol. Generated by coff_renumber_symbols. *}
225 .unsigned int offset;
226 .
227 . {* Should the tag field of this symbol be renumbered.
228 . Created by coff_pointerize_aux. *}
229 .char fix_tag;
230 .
231 . {* Should the endidx field of this symbol be renumbered.
232 . Created by coff_pointerize_aux. *}
233 .char fix_end;
234 .
235 . {* The container for the symbol structure as read and translated
236 . from the file. *}
237 .
238 .union {
239 . union internal_auxent auxent;
240 . struct internal_syment syment;
241 . } u;
242 .} combined_entry_type;
243 .
244 .
245 .{* Each canonical asymbol really looks like this: *}
246 .
247 .typedef struct coff_symbol_struct
248 .{
249 . {* The actual symbol which the rest of BFD works with *}
250 .asymbol symbol;
251 .
252 . {* A pointer to the hidden information for this symbol *}
253 .combined_entry_type *native;
254 .
255 . {* A pointer to the linenumber information for this symbol *}
256 .struct lineno_cache_entry *lineno;
257 .
258 . {* Have the line numbers been relocated yet ? *}
259 .boolean done_lineno;
260 .} coff_symbol_type;
261
262
263 */
264
265 #include "seclet.h"
266 extern bfd_error_vector_type bfd_error_vector;
267
268
269
270
271 #define PUTWORD bfd_h_put_32
272 #define PUTHALF bfd_h_put_16
273 #define PUTBYTE bfd_h_put_8
274
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)
277 #endif
278
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)
281 #endif
282
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)
285 #endif
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)
288 #endif
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)
291 #endif
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)
294 #endif
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)
297 #endif
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)
300 #endif
301 #ifndef GET_SCN_SCNLEN
302 #define GET_SCN_SCNLEN(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_scnlen)
303 #endif
304 #ifndef GET_SCN_NRELOC
305 #define GET_SCN_NRELOC(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nreloc)
306 #endif
307 #ifndef GET_SCN_NLINNO
308 #define GET_SCN_NLINNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nlinno)
309 #endif
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)
312 #endif
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)
315 #endif
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)
318 #endif
319 #ifndef GET_LINENO_LNNO
320 #define GET_LINENO_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) (ext->l_lnno));
321 #endif
322 #ifndef PUT_LINENO_LNNO
323 #define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_16(abfd,val, (bfd_byte *) (ext->l_lnno));
324 #endif
325
326 \f
327 /* void warning(); */
328
329 /*
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().
334 */
335 static long
336 DEFUN(sec_to_styp_flags, (sec_name, sec_flags),
337 CONST char * sec_name AND
338 flagword sec_flags)
339 {
340 long styp_flags = 0;
341
342 if (!strcmp(sec_name, _TEXT)) {
343 return((long)STYP_TEXT);
344 } else if (!strcmp(sec_name, _DATA)) {
345 return((long)STYP_DATA);
346 } else if (!strcmp(sec_name, _BSS)) {
347 return((long)STYP_BSS);
348 #ifdef _COMMENT
349 } else if (!strcmp(sec_name, _COMMENT)) {
350 return((long)STYP_INFO);
351 #endif /* _COMMENT */
352 }
353
354 /* Try and figure out what it should be */
355 if (sec_flags & SEC_CODE) styp_flags = STYP_TEXT;
356 if (sec_flags & SEC_DATA) styp_flags = STYP_DATA;
357 else if (sec_flags & SEC_READONLY)
358 #ifdef STYP_LIT /* 29k readonly text/data section */
359 styp_flags = STYP_LIT;
360 #else
361 styp_flags = STYP_TEXT;
362 #endif /* STYP_LIT */
363 else if (sec_flags & SEC_LOAD) styp_flags = STYP_TEXT;
364
365 if (styp_flags == 0) styp_flags = STYP_BSS;
366
367 return(styp_flags);
368 }
369 /*
370 * Return a word with SEC_* flags set to represent the incoming
371 * STYP_* flags (from scnhdr.s_flags). The inverse of this
372 * function is sec_to_styp_flags().
373 * NOTE: If you add to/change this routine, you should mirror the changes
374 * in sec_to_styp_flags().
375 */
376 static flagword
377 DEFUN(styp_to_sec_flags, (styp_flags),
378 long styp_flags)
379 {
380 flagword sec_flags=0;
381
382 if ((styp_flags & STYP_TEXT) || (styp_flags & STYP_DATA))
383 sec_flags = (SEC_LOAD | SEC_ALLOC);
384 else if (styp_flags & STYP_BSS)
385 sec_flags = SEC_ALLOC;
386
387 #ifdef STYP_LIT /* A29k readonly text/data section type */
388 if ((styp_flags & STYP_LIT) == STYP_LIT)
389 sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY);
390 #endif /* STYP_LIT */
391 #ifdef STYP_OTHER_LOAD /* Other loaded sections */
392 if (styp_flags & STYP_OTHER_LOAD)
393 sec_flags = (SEC_LOAD | SEC_ALLOC);
394 #endif /* STYP_SDATA */
395
396 return(sec_flags);
397 }
398
399 #define get_index(symbol) ((int) (symbol)->value)
400 #define set_index(symbol, idx) ((symbol)->value = (idx))
401
402 /* **********************************************************************
403 Here are all the routines for swapping the structures seen in the
404 outside world into the internal forms.
405 */
406
407
408 static void
409 DEFUN(bfd_swap_reloc_in,(abfd, reloc_src, reloc_dst),
410 bfd *abfd AND
411 RELOC *reloc_src AND
412 struct internal_reloc *reloc_dst)
413 {
414 reloc_dst->r_vaddr = bfd_h_get_32(abfd, (bfd_byte *)reloc_src->r_vaddr);
415 reloc_dst->r_symndx = bfd_h_get_32(abfd, (bfd_byte *) reloc_src->r_symndx);
416
417 #ifdef RS6000COFF_C
418 reloc_dst->r_type = bfd_h_get_8(abfd, reloc_src->r_type);
419 reloc_dst->r_size = bfd_h_get_8(abfd, reloc_src->r_size);
420 #else
421 reloc_dst->r_type = bfd_h_get_16(abfd, (bfd_byte *) reloc_src->r_type);
422 #endif
423
424 #ifdef SWAP_IN_RELOC_OFFSET
425 reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET(abfd,
426 (bfd_byte *) reloc_src->r_offset);
427 #endif
428 }
429
430
431 static unsigned int
432 DEFUN(coff_swap_reloc_out,(abfd, src, dst),
433 bfd *abfd AND
434 PTR src AND
435 PTR dst)
436 {
437 struct internal_reloc *reloc_src = (struct internal_reloc *)src;
438 struct external_reloc *reloc_dst = (struct external_reloc *)dst;
439 bfd_h_put_32(abfd, reloc_src->r_vaddr, (bfd_byte *) reloc_dst->r_vaddr);
440 bfd_h_put_32(abfd, reloc_src->r_symndx, (bfd_byte *) reloc_dst->r_symndx);
441 bfd_h_put_16(abfd, reloc_src->r_type, (bfd_byte *)
442 reloc_dst->r_type);
443
444 #ifdef SWAP_OUT_RELOC_OFFSET
445 SWAP_OUT_RELOC_OFFSET(abfd,
446 reloc_src->r_offset,
447 (bfd_byte *) reloc_dst->r_offset);
448 #endif
449 #ifdef SWAP_OUT_RELOC_EXTRA
450 SWAP_OUT_RELOC_EXTRA(abfd,reloc_src, reloc_dst);
451 #endif
452
453 return sizeof(struct external_reloc);
454 }
455
456 static void
457 DEFUN(bfd_swap_filehdr_in,(abfd, filehdr_src, filehdr_dst),
458 bfd *abfd AND
459 FILHDR *filehdr_src AND
460 struct internal_filehdr *filehdr_dst)
461 {
462 filehdr_dst->f_magic = bfd_h_get_16(abfd, (bfd_byte *) filehdr_src->f_magic);
463 filehdr_dst->f_nscns = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_nscns);
464 filehdr_dst->f_timdat = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_timdat);
465 filehdr_dst->f_symptr = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_symptr);
466 filehdr_dst->f_nsyms = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_nsyms);
467 filehdr_dst->f_opthdr = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_opthdr);
468 filehdr_dst->f_flags = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_flags);
469 }
470
471 static unsigned int
472 DEFUN(coff_swap_filehdr_out,(abfd, in, out),
473 bfd *abfd AND
474 PTR in AND
475 PTR out)
476 {
477 struct internal_filehdr *filehdr_in = (struct internal_filehdr *)in;
478 FILHDR *filehdr_out = (FILHDR *)out;
479 bfd_h_put_16(abfd, filehdr_in->f_magic, (bfd_byte *) filehdr_out->f_magic);
480 bfd_h_put_16(abfd, filehdr_in->f_nscns, (bfd_byte *) filehdr_out->f_nscns);
481 bfd_h_put_32(abfd, filehdr_in->f_timdat, (bfd_byte *) filehdr_out->f_timdat);
482 bfd_h_put_32(abfd, filehdr_in->f_symptr, (bfd_byte *) filehdr_out->f_symptr);
483 bfd_h_put_32(abfd, filehdr_in->f_nsyms, (bfd_byte *) filehdr_out->f_nsyms);
484 bfd_h_put_16(abfd, filehdr_in->f_opthdr, (bfd_byte *) filehdr_out->f_opthdr);
485 bfd_h_put_16(abfd, filehdr_in->f_flags, (bfd_byte *) filehdr_out->f_flags);
486 return sizeof(FILHDR);
487 }
488
489
490 #ifndef NO_COFF_SYMBOLS
491
492 static void
493 DEFUN(coff_swap_sym_in,(abfd, ext1, in1),
494 bfd *abfd AND
495 PTR ext1 AND
496 PTR in1)
497 {
498 SYMENT *ext = (SYMENT *)ext1;
499 struct internal_syment *in = (struct internal_syment *)in1;
500
501 if( ext->e.e_name[0] == 0) {
502 in->_n._n_n._n_zeroes = 0;
503 in->_n._n_n._n_offset = bfd_h_get_32(abfd, (bfd_byte *) ext->e.e.e_offset);
504 }
505 else {
506 #if SYMNMLEN != E_SYMNMLEN
507 -> Error, we need to cope with truncating or extending SYMNMLEN!;
508 #else
509 memcpy(in->_n._n_name, ext->e.e_name, SYMNMLEN);
510 #endif
511 }
512 in->n_value = bfd_h_get_32(abfd, (bfd_byte *) ext->e_value);
513 in->n_scnum = bfd_h_get_16(abfd, (bfd_byte *) ext->e_scnum);
514 if (sizeof(ext->e_type) == 2){
515 in->n_type = bfd_h_get_16(abfd, (bfd_byte *) ext->e_type);
516 }
517 else {
518 in->n_type = bfd_h_get_32(abfd, (bfd_byte *) ext->e_type);
519 }
520 in->n_sclass = bfd_h_get_8(abfd, ext->e_sclass);
521 in->n_numaux = bfd_h_get_8(abfd, ext->e_numaux);
522 }
523
524 static unsigned int
525 DEFUN(coff_swap_sym_out,(abfd, inp, extp),
526 bfd *abfd AND
527 PTR inp AND
528 PTR extp)
529 {
530 struct internal_syment *in = (struct internal_syment *)inp;
531 SYMENT *ext =(SYMENT *)extp;
532 if(in->_n._n_name[0] == 0) {
533 bfd_h_put_32(abfd, 0, (bfd_byte *) ext->e.e.e_zeroes);
534 bfd_h_put_32(abfd, in->_n._n_n._n_offset, (bfd_byte *) ext->e.e.e_offset);
535 }
536 else {
537 #if SYMNMLEN != E_SYMNMLEN
538 -> Error, we need to cope with truncating or extending SYMNMLEN!;
539 #else
540 memcpy(ext->e.e_name, in->_n._n_name, SYMNMLEN);
541 #endif
542 }
543 bfd_h_put_32(abfd, in->n_value , (bfd_byte *) ext->e_value);
544 bfd_h_put_16(abfd, in->n_scnum , (bfd_byte *) ext->e_scnum);
545 if (sizeof(ext->e_type) == 2)
546 {
547 bfd_h_put_16(abfd, in->n_type , (bfd_byte *) ext->e_type);
548 }
549 else
550 {
551 bfd_h_put_32(abfd, in->n_type , (bfd_byte *) ext->e_type);
552 }
553 bfd_h_put_8(abfd, in->n_sclass , ext->e_sclass);
554 bfd_h_put_8(abfd, in->n_numaux , ext->e_numaux);
555 return sizeof(SYMENT);
556 }
557
558 static void
559 DEFUN(coff_swap_aux_in,(abfd, ext1, type, class, in),
560 bfd *abfd AND
561 PTR ext1 AND
562 int type AND
563 int class AND
564 union internal_auxent *in)
565 {
566 AUXENT *ext = (AUXENT *)ext1;
567
568 switch (class) {
569 case C_FILE:
570 if (ext->x_file.x_fname[0] == 0) {
571 in->x_file.x_n.x_zeroes = 0;
572 in->x_file.x_n.x_offset =
573 bfd_h_get_32(abfd, (bfd_byte *) ext->x_file.x_n.x_offset);
574 } else {
575 #if FILNMLEN != E_FILNMLEN
576 -> Error, we need to cope with truncating or extending FILNMLEN!;
577 #else
578 memcpy (in->x_file.x_fname, ext->x_file.x_fname, FILNMLEN);
579 #endif
580 }
581 break;
582
583 /* RS/6000 "csect" auxents */
584 #ifdef RS6000COFF_C
585 case C_EXT:
586 case C_HIDEXT:
587 in->x_csect.x_scnlen = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_scnlen);
588 in->x_csect.x_parmhash = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_parmhash);
589 in->x_csect.x_snhash = bfd_h_get_16 (abfd, (bfd_byte *) ext->x_csect.x_snhash);
590 /* We don't have to hack bitfields in x_smtyp because it's defined by
591 shifts-and-ands, which are equivalent on all byte orders. */
592 in->x_csect.x_smtyp = bfd_h_get_8 (abfd, (bfd_byte *) ext->x_csect.x_smtyp);
593 in->x_csect.x_smclas = bfd_h_get_8 (abfd, (bfd_byte *) ext->x_csect.x_smclas);
594 in->x_csect.x_stab = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_stab);
595 in->x_csect.x_snstab = bfd_h_get_16 (abfd, (bfd_byte *) ext->x_csect.x_snstab);
596 break;
597 #endif
598
599 case C_STAT:
600 #ifdef C_LEAFSTAT
601 case C_LEAFSTAT:
602 #endif
603 case C_HIDDEN:
604 if (type == T_NULL) {
605 in->x_scn.x_scnlen = GET_SCN_SCNLEN(abfd, ext);
606 in->x_scn.x_nreloc = GET_SCN_NRELOC(abfd, ext);
607 in->x_scn.x_nlinno = GET_SCN_NLINNO(abfd, ext);
608 break;
609 }
610 default:
611 in->x_sym.x_tagndx.l = bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_tagndx);
612 #ifndef NO_TVNDX
613 in->x_sym.x_tvndx = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_tvndx);
614 #endif
615
616 if (ISARY(type) || class == C_BLOCK) {
617 #if DIMNUM != E_DIMNUM
618 -> Error, we need to cope with truncating or extending DIMNUM!;
619 #else
620 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]);
621 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]);
622 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]);
623 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]);
624 #endif
625 }
626 in->x_sym.x_fcnary.x_fcn.x_lnnoptr = GET_FCN_LNNOPTR(abfd, ext);
627 in->x_sym.x_fcnary.x_fcn.x_endndx.l = GET_FCN_ENDNDX(abfd, ext);
628
629 if (ISFCN(type)) {
630 in->x_sym.x_misc.x_fsize = bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_misc.x_fsize);
631 }
632 else {
633 in->x_sym.x_misc.x_lnsz.x_lnno = GET_LNSZ_LNNO(abfd, ext);
634 in->x_sym.x_misc.x_lnsz.x_size = GET_LNSZ_SIZE(abfd, ext);
635 }
636 }
637 }
638
639 static unsigned int
640 DEFUN(coff_swap_aux_out,(abfd, inp, type, class, extp),
641 bfd *abfd AND
642 PTR inp AND
643 int type AND
644 int class AND
645 PTR extp)
646 {
647 union internal_auxent *in = (union internal_auxent *)inp;
648 AUXENT *ext = (AUXENT *)extp;
649 switch (class) {
650 case C_FILE:
651 if (in->x_file.x_fname[0] == 0) {
652 PUTWORD(abfd, 0, (bfd_byte *) ext->x_file.x_n.x_zeroes);
653 PUTWORD(abfd,
654 in->x_file.x_n.x_offset,
655 (bfd_byte *) ext->x_file.x_n.x_offset);
656 }
657 else {
658 #if FILNMLEN != E_FILNMLEN
659 -> Error, we need to cope with truncating or extending FILNMLEN!;
660 #else
661 memcpy (ext->x_file.x_fname, in->x_file.x_fname, FILNMLEN);
662 #endif
663 }
664 break;
665
666 #ifdef RS6000COFF_C
667 /* RS/6000 "csect" auxents */
668 case C_EXT:
669 case C_HIDEXT:
670 PUTWORD (abfd, in->x_csect.x_scnlen, ext->x_csect.x_scnlen);
671 PUTWORD (abfd, in->x_csect.x_parmhash, ext->x_csect.x_parmhash);
672 PUTHALF (abfd, in->x_csect.x_snhash, ext->x_csect.x_snhash);
673 /* We don't have to hack bitfields in x_smtyp because it's defined by
674 shifts-and-ands, which are equivalent on all byte orders. */
675 PUTBYTE (abfd, in->x_csect.x_smtyp, ext->x_csect.x_smtyp);
676 PUTBYTE (abfd, in->x_csect.x_smclas, ext->x_csect.x_smclas);
677 PUTWORD (abfd, in->x_csect.x_stab, ext->x_csect.x_stab);
678 PUTHALF (abfd, in->x_csect.x_snstab, ext->x_csect.x_snstab);
679 break;
680 #endif
681
682 case C_STAT:
683 #ifdef C_LEAFSTAT
684 case C_LEAFSTAT:
685 #endif
686 case C_HIDDEN:
687 if (type == T_NULL) {
688 PUT_SCN_SCNLEN(abfd, in->x_scn.x_scnlen, ext);
689 PUT_SCN_NRELOC(abfd, in->x_scn.x_nreloc, ext);
690 PUT_SCN_NLINNO(abfd, in->x_scn.x_nlinno, ext);
691 break;
692 }
693 default:
694 PUTWORD(abfd, in->x_sym.x_tagndx.l, (bfd_byte *) ext->x_sym.x_tagndx);
695 #ifndef NO_TVNDX
696 PUTWORD(abfd, in->x_sym.x_tvndx , (bfd_byte *) ext->x_sym.x_tvndx);
697 #endif
698
699 if (ISFCN(type)) {
700 PUTWORD(abfd, in->x_sym.x_misc.x_fsize, (bfd_byte *) ext->x_sym.x_misc.x_fsize);
701 PUT_FCN_LNNOPTR(abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr, ext);
702 PUT_FCN_ENDNDX(abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l, ext);
703 }
704 else {
705
706 if (ISARY(type) || class == C_BLOCK) {
707 #if DIMNUM != E_DIMNUM
708 -> Error, we need to cope with truncating or extending DIMNUM!;
709 #else
710 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]);
711 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]);
712 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]);
713 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]);
714 #endif
715 }
716 PUT_LNSZ_LNNO(abfd, in->x_sym.x_misc.x_lnsz.x_lnno, ext);
717 PUT_LNSZ_SIZE(abfd, in->x_sym.x_misc.x_lnsz.x_size, ext);
718
719 PUT_FCN_LNNOPTR(abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr, ext);
720 PUT_FCN_ENDNDX(abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l, ext);
721
722
723 }
724 }
725 return sizeof(AUXENT);
726 }
727
728 #endif /* NO_COFF_SYMBOLS */
729
730 #ifndef NO_COFF_LINENOS
731
732 static void
733 DEFUN(coff_swap_lineno_in,(abfd, ext1, in1),
734 bfd *abfd AND
735 PTR ext1 AND
736 PTR in1)
737 {
738 LINENO *ext = (LINENO *)ext1;
739 struct internal_lineno *in = (struct internal_lineno *)in1;
740
741 in->l_addr.l_symndx = bfd_h_get_32(abfd, (bfd_byte *) ext->l_addr.l_symndx);
742 in->l_lnno = GET_LINENO_LNNO(abfd, ext);
743 }
744
745 static unsigned int
746 DEFUN(coff_swap_lineno_out,(abfd, inp, outp),
747 bfd *abfd AND
748 PTR inp AND
749 PTR outp)
750 {
751 struct internal_lineno *in = (struct internal_lineno *)inp;
752 struct external_lineno *ext = (struct external_lineno *)outp;
753 PUTWORD(abfd, in->l_addr.l_symndx, (bfd_byte *)
754 ext->l_addr.l_symndx);
755
756 PUT_LINENO_LNNO (abfd, in->l_lnno, ext);
757 return sizeof(struct external_lineno);
758 }
759
760 #endif /* NO_COFF_LINENOS */
761
762
763 static void
764 DEFUN(bfd_swap_aouthdr_in,(abfd, aouthdr_ext1, aouthdr_int1),
765 bfd *abfd AND
766 PTR aouthdr_ext1 AND
767 PTR aouthdr_int1)
768 {
769 AOUTHDR *aouthdr_ext = (AOUTHDR *) aouthdr_ext1;
770 struct internal_aouthdr *aouthdr_int = (struct internal_aouthdr *)aouthdr_int1;
771
772 aouthdr_int->magic = bfd_h_get_16(abfd, (bfd_byte *) aouthdr_ext->magic);
773 aouthdr_int->vstamp = bfd_h_get_16(abfd, (bfd_byte *) aouthdr_ext->vstamp);
774 aouthdr_int->tsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->tsize);
775 aouthdr_int->dsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->dsize);
776 aouthdr_int->bsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->bsize);
777 aouthdr_int->entry = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->entry);
778 aouthdr_int->text_start = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->text_start);
779 aouthdr_int->data_start = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->data_start);
780 #ifdef I960
781 aouthdr_int->tagentries = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->tagentries);
782 #endif
783
784 #ifdef RS6000COFF_C
785 aouthdr_int->o_toc = bfd_h_get_32(abfd, aouthdr_ext->o_toc);
786 aouthdr_int->o_snentry = bfd_h_get_16(abfd, aouthdr_ext->o_snentry);
787 aouthdr_int->o_sntext = bfd_h_get_16(abfd, aouthdr_ext->o_sntext);
788 aouthdr_int->o_sndata = bfd_h_get_16(abfd, aouthdr_ext->o_sndata);
789 aouthdr_int->o_sntoc = bfd_h_get_16(abfd, aouthdr_ext->o_sntoc);
790 aouthdr_int->o_snloader = bfd_h_get_16(abfd, aouthdr_ext->o_snloader);
791 aouthdr_int->o_snbss = bfd_h_get_16(abfd, aouthdr_ext->o_snbss);
792 aouthdr_int->o_algntext = bfd_h_get_16(abfd, aouthdr_ext->o_algntext);
793 aouthdr_int->o_algndata = bfd_h_get_16(abfd, aouthdr_ext->o_algndata);
794 aouthdr_int->o_modtype = bfd_h_get_16(abfd, aouthdr_ext->o_modtype);
795 aouthdr_int->o_maxstack = bfd_h_get_32(abfd, aouthdr_ext->o_maxstack);
796 #endif
797 }
798
799 static unsigned int
800 DEFUN(coff_swap_aouthdr_out,(abfd, in, out),
801 bfd *abfd AND
802 PTR in AND
803 PTR out)
804 {
805 struct internal_aouthdr *aouthdr_in = (struct internal_aouthdr *)in;
806 AOUTHDR *aouthdr_out = (AOUTHDR *)out;
807 bfd_h_put_16(abfd, aouthdr_in->magic, (bfd_byte *) aouthdr_out->magic);
808 bfd_h_put_16(abfd, aouthdr_in->vstamp, (bfd_byte *) aouthdr_out->vstamp);
809 bfd_h_put_32(abfd, aouthdr_in->tsize, (bfd_byte *) aouthdr_out->tsize);
810 bfd_h_put_32(abfd, aouthdr_in->dsize, (bfd_byte *) aouthdr_out->dsize);
811 bfd_h_put_32(abfd, aouthdr_in->bsize, (bfd_byte *) aouthdr_out->bsize);
812 bfd_h_put_32(abfd, aouthdr_in->entry, (bfd_byte *) aouthdr_out->entry);
813 bfd_h_put_32(abfd, aouthdr_in->text_start,
814 (bfd_byte *) aouthdr_out->text_start);
815 bfd_h_put_32(abfd, aouthdr_in->data_start, (bfd_byte *) aouthdr_out->data_start);
816 #ifdef I960
817 bfd_h_put_32(abfd, aouthdr_in->tagentries, (bfd_byte *) aouthdr_out->tagentries);
818 #endif
819 return sizeof(AOUTHDR);
820 }
821
822 static void
823 DEFUN(coff_swap_scnhdr_in,(abfd, scnhdr_ext, scnhdr_int),
824 bfd *abfd AND
825 SCNHDR *scnhdr_ext AND
826 struct internal_scnhdr *scnhdr_int)
827 {
828 memcpy(scnhdr_int->s_name, scnhdr_ext->s_name, sizeof(scnhdr_int->s_name));
829 scnhdr_int->s_vaddr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_vaddr);
830 scnhdr_int->s_paddr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_paddr);
831 scnhdr_int->s_size = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_size);
832
833 scnhdr_int->s_scnptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_scnptr);
834 scnhdr_int->s_relptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_relptr);
835 scnhdr_int->s_lnnoptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_lnnoptr);
836 scnhdr_int->s_flags = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_flags);
837 #if defined(M88)
838 scnhdr_int->s_nreloc = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_nreloc);
839 scnhdr_int->s_nlnno = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_nlnno);
840 #else
841 scnhdr_int->s_nreloc = bfd_h_get_16(abfd, (bfd_byte *) scnhdr_ext->s_nreloc);
842 scnhdr_int->s_nlnno = bfd_h_get_16(abfd, (bfd_byte *) scnhdr_ext->s_nlnno);
843 #endif
844 #ifdef I960
845 scnhdr_int->s_align = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_align);
846 #endif
847 }
848
849 static unsigned int
850 DEFUN(coff_swap_scnhdr_out,(abfd, in, out),
851 bfd *abfd AND
852 PTR in AND
853 PTR out)
854 {
855 struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *)in;
856 SCNHDR *scnhdr_ext = (SCNHDR *)out;
857 memcpy(scnhdr_ext->s_name, scnhdr_int->s_name, sizeof(scnhdr_int->s_name));
858 PUTWORD(abfd, scnhdr_int->s_vaddr, (bfd_byte *) scnhdr_ext->s_vaddr);
859 PUTWORD(abfd, scnhdr_int->s_paddr, (bfd_byte *) scnhdr_ext->s_paddr);
860 PUTWORD(abfd, scnhdr_int->s_size, (bfd_byte *) scnhdr_ext->s_size);
861 PUTWORD(abfd, scnhdr_int->s_scnptr, (bfd_byte *) scnhdr_ext->s_scnptr);
862 PUTWORD(abfd, scnhdr_int->s_relptr, (bfd_byte *) scnhdr_ext->s_relptr);
863 PUTWORD(abfd, scnhdr_int->s_lnnoptr, (bfd_byte *) scnhdr_ext->s_lnnoptr);
864 PUTWORD(abfd, scnhdr_int->s_flags, (bfd_byte *) scnhdr_ext->s_flags);
865 #if defined(M88)
866 PUTWORD(abfd, scnhdr_int->s_nlnno, (bfd_byte *) scnhdr_ext->s_nlnno);
867 PUTWORD(abfd, scnhdr_int->s_nreloc, (bfd_byte *) scnhdr_ext->s_nreloc);
868 #else
869 PUTHALF(abfd, scnhdr_int->s_nlnno, (bfd_byte *) scnhdr_ext->s_nlnno);
870 PUTHALF(abfd, scnhdr_int->s_nreloc, (bfd_byte *) scnhdr_ext->s_nreloc);
871 #endif
872
873 #if defined(I960)
874 PUTWORD(abfd, scnhdr_int->s_align, (bfd_byte *) scnhdr_ext->s_align);
875 #endif
876 return sizeof(SCNHDR);
877 }
878
879
880 /*
881 initialize a section structure with information peculiar to this
882 particular implementation of coff
883 */
884
885 static boolean
886 DEFUN(coff_new_section_hook,(abfd_ignore, section),
887 bfd *abfd_ignore AND
888 asection *section)
889 {
890 section->alignment_power = abfd_ignore->xvec->align_power_min;
891 return true;
892 }
893
894 static asection bfd_debug_section =
895 { "*DEBUG*" };
896
897
898
899 static void
900 DEFUN(make_abs_section,(abfd),
901 bfd *abfd)
902 {
903
904
905
906 }
907
908 /* Take a section header read from a coff file (in HOST byte order),
909 and make a BFD "section" out of it. */
910 static boolean
911 DEFUN(make_a_section_from_file,(abfd, hdr, target_index),
912 bfd *abfd AND
913 struct internal_scnhdr *hdr AND
914 unsigned int target_index)
915 {
916 asection *return_section;
917 char *name;
918
919 /* Assorted wastage to null-terminate the name, thanks AT&T! */
920 name = bfd_alloc(abfd, sizeof (hdr->s_name)+1);
921 if (name == NULL) {
922 bfd_error = no_memory;
923 return false;
924 }
925 strncpy(name, (char *) &hdr->s_name[0], sizeof (hdr->s_name));
926 name[sizeof (hdr->s_name)] = 0;
927
928 return_section = bfd_make_section(abfd, name);
929 if (return_section == NULL)
930 return false;
931
932 /* s_paddr is presumed to be = to s_vaddr */
933
934 return_section->vma = hdr->s_vaddr;
935 return_section->_raw_size = hdr->s_size;
936 return_section->filepos = hdr->s_scnptr;
937 return_section->rel_filepos = hdr->s_relptr;
938 return_section->reloc_count = hdr->s_nreloc;
939 #ifdef I960
940
941 /* FIXME, use a temp var rather than alignment_power */
942 return_section->alignment_power = hdr->s_align;
943 {
944 unsigned int i;
945 for (i = 0; i < 32; i++) {
946 if ((1 << i) >= (int) (return_section->alignment_power)) {
947 return_section->alignment_power = i;
948 break;
949 }
950 }
951 }
952
953 #endif
954 return_section->line_filepos = hdr->s_lnnoptr;
955 /*
956 return_section->linesize = hdr->s_nlnno * sizeof (struct lineno);
957 */
958
959 return_section->lineno_count = hdr->s_nlnno;
960 return_section->userdata = NULL;
961 return_section->next = (asection *) NULL;
962 return_section->flags = styp_to_sec_flags(hdr->s_flags);
963
964 return_section->target_index = target_index;
965
966 if (hdr->s_nreloc != 0)
967 return_section->flags |= SEC_RELOC;
968 /* FIXME: should this check 'hdr->s_size > 0' */
969 if (hdr->s_scnptr != 0)
970 return_section->flags |= SEC_HAS_CONTENTS;
971 return true;
972 }
973 static boolean
974 DEFUN(coff_mkobject,(abfd),
975 bfd *abfd)
976 {
977 abfd->tdata.coff_obj_data = (struct coff_tdata *)bfd_zalloc (abfd,sizeof(coff_data_type));
978 if (abfd->tdata.coff_obj_data == 0){
979 bfd_error = no_memory;
980 return false;
981 }
982 coff_data(abfd)->relocbase = 0;
983 /* make_abs_section(abfd);*/
984 return true;
985 }
986
987 static
988 bfd_target *
989 DEFUN(coff_real_object_p,(abfd, nscns, internal_f, internal_a),
990 bfd *abfd AND
991 unsigned nscns AND
992 struct internal_filehdr *internal_f AND
993 struct internal_aouthdr *internal_a)
994 {
995 coff_data_type *coff;
996 enum bfd_architecture arch;
997 long machine;
998 size_t readsize; /* length of file_info */
999 SCNHDR *external_sections;
1000
1001 /* Build a play area */
1002 if (coff_mkobject(abfd) != true)
1003 return 0;
1004
1005 coff = coff_data(abfd);
1006
1007
1008 external_sections = (SCNHDR *)bfd_alloc(abfd, readsize = (nscns * SCNHSZ));
1009
1010 if (bfd_read((PTR)external_sections, 1, readsize, abfd) != readsize) {
1011 goto fail;
1012 }
1013
1014
1015 /* Now copy data as required; construct all asections etc */
1016 coff->symbol_index_slew = 0;
1017 coff->relocbase =0;
1018 coff->raw_syment_count = 0;
1019 coff->raw_linenos = 0;
1020 coff->raw_syments = 0;
1021 coff->sym_filepos =0;
1022 coff->flags = internal_f->f_flags;
1023 if (nscns != 0) {
1024 unsigned int i;
1025 for (i = 0; i < nscns; i++) {
1026 struct internal_scnhdr tmp;
1027 coff_swap_scnhdr_in(abfd, external_sections + i, &tmp);
1028 make_a_section_from_file(abfd,&tmp, i+1);
1029 }
1030 }
1031
1032 /* make_abs_section(abfd);*/
1033
1034 /* Determine the machine architecture and type. */
1035 machine = 0;
1036 switch (internal_f->f_magic) {
1037 #ifdef I386MAGIC
1038 case I386MAGIC:
1039 arch = bfd_arch_i386;
1040 machine = 0;
1041 break;
1042 #endif
1043
1044 #ifdef A29K_MAGIC_BIG
1045 case A29K_MAGIC_BIG:
1046 case A29K_MAGIC_LITTLE:
1047 arch = bfd_arch_a29k;
1048 machine = 0;
1049 break;
1050 #endif
1051
1052 #ifdef MIPS
1053 case MIPS_MAGIC_1:
1054 case MIPS_MAGIC_2:
1055 case MIPS_MAGIC_3:
1056 arch = bfd_arch_mips;
1057 machine = 0;
1058 break;
1059 #endif
1060
1061 #ifdef MC68MAGIC
1062 case MC68MAGIC:
1063 case M68MAGIC:
1064 arch = bfd_arch_m68k;
1065 machine = 68020;
1066 break;
1067 #endif
1068 #ifdef MC88MAGIC
1069 case MC88MAGIC:
1070 case MC88DMAGIC:
1071 case MC88OMAGIC:
1072 arch = bfd_arch_m88k;
1073 machine = 88100;
1074 break;
1075 #endif
1076 #ifdef I960
1077 #ifdef I960ROMAGIC
1078 case I960ROMAGIC:
1079 case I960RWMAGIC:
1080 arch = bfd_arch_i960;
1081 switch (F_I960TYPE & internal_f->f_flags)
1082 {
1083 default:
1084 case F_I960CORE:
1085 machine = bfd_mach_i960_core;
1086 break;
1087 case F_I960KB:
1088 machine = bfd_mach_i960_kb_sb;
1089 break;
1090 case F_I960MC:
1091 machine = bfd_mach_i960_mc;
1092 break;
1093 case F_I960XA:
1094 machine = bfd_mach_i960_xa;
1095 break;
1096 case F_I960CA:
1097 machine = bfd_mach_i960_ca;
1098 break;
1099 case F_I960KA:
1100 machine = bfd_mach_i960_ka_sa;
1101 break;
1102 }
1103 break;
1104 #endif
1105 #endif
1106
1107 #ifdef U802ROMAGIC
1108 case U802ROMAGIC:
1109 case U802WRMAGIC:
1110 case U802TOCMAGIC:
1111 arch = bfd_arch_rs6000;
1112 machine = 6000;
1113 break;
1114 #endif
1115
1116 #ifdef H8300MAGIC
1117 case H8300MAGIC:
1118 arch = bfd_arch_h8300;
1119 machine = 0;
1120 break;
1121 #endif
1122
1123 default: /* Unreadable input file type */
1124 arch = bfd_arch_obscure;
1125 break;
1126 }
1127
1128 bfd_default_set_arch_mach(abfd, arch, machine);
1129 if (!(internal_f->f_flags & F_RELFLG))
1130 abfd->flags |= HAS_RELOC;
1131 if ((internal_f->f_flags & F_EXEC))
1132 abfd->flags |= EXEC_P;
1133 if (!(internal_f->f_flags & F_LNNO))
1134 abfd->flags |= HAS_LINENO;
1135 if (!(internal_f->f_flags & F_LSYMS))
1136 abfd->flags |= HAS_LOCALS;
1137
1138
1139 bfd_get_symcount(abfd) = internal_f->f_nsyms;
1140 if (internal_f->f_nsyms)
1141 abfd->flags |= HAS_SYMS;
1142
1143 coff->sym_filepos = internal_f->f_symptr;
1144
1145 /* These members communicate important constants about the symbol table
1146 to GDB's symbol-reading code. These `constants' unfortunately vary
1147 from coff implementation to implementation... */
1148 #ifndef NO_COFF_SYMBOLS
1149 coff->local_n_btmask = N_BTMASK;
1150 coff->local_n_btshft = N_BTSHFT;
1151 coff->local_n_tmask = N_TMASK;
1152 coff->local_n_tshift = N_TSHIFT;
1153 coff->local_symesz = SYMESZ;
1154 coff->local_auxesz = AUXESZ;
1155 coff->local_linesz = LINESZ;
1156 #endif
1157
1158 coff->symbols = (coff_symbol_type *) NULL;
1159 bfd_get_start_address(abfd) = internal_f->f_opthdr ? internal_a->entry : 0;
1160
1161 return abfd->xvec;
1162 fail:
1163 bfd_release(abfd, coff);
1164 return (bfd_target *)NULL;
1165 }
1166
1167 static bfd_target *
1168 DEFUN(coff_object_p,(abfd),
1169 bfd *abfd)
1170 {
1171 int nscns;
1172 FILHDR filehdr;
1173 AOUTHDR opthdr;
1174 struct internal_filehdr internal_f;
1175 struct internal_aouthdr internal_a;
1176
1177 bfd_error = system_call_error;
1178
1179 /* figure out how much to read */
1180 if (bfd_read((PTR) &filehdr, 1, FILHSZ, abfd) != FILHSZ)
1181 return 0;
1182
1183 bfd_swap_filehdr_in(abfd, &filehdr, &internal_f);
1184
1185 if (BADMAG(internal_f)) {
1186 bfd_error = wrong_format;
1187 return 0;
1188 }
1189 nscns =internal_f.f_nscns;
1190
1191 if (internal_f.f_opthdr) {
1192 if (bfd_read((PTR) &opthdr, 1,AOUTSZ, abfd) != AOUTSZ) {
1193 return 0;
1194 }
1195 bfd_swap_aouthdr_in(abfd, (char *)&opthdr, (char *)&internal_a);
1196 }
1197
1198 /* Seek past the opt hdr stuff */
1199 bfd_seek(abfd, internal_f.f_opthdr + FILHSZ, SEEK_SET);
1200
1201 /* if the optional header is NULL or not the correct size then
1202 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1203 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1204 optional header is of a different size.
1205
1206 But the mips keeps extra stuff in it's opthdr, so dont check
1207 when doing that
1208 */
1209
1210 #if defined(M88) || defined(I960)
1211 if (internal_f.f_opthdr != 0 && AOUTSZ != internal_f.f_opthdr)
1212 return (bfd_target *)NULL;
1213 #endif
1214
1215 return coff_real_object_p(abfd, nscns, &internal_f, &internal_a);
1216 }
1217
1218
1219
1220 #ifndef NO_COFF_LINENOS
1221
1222 static void
1223 DEFUN(coff_count_linenumbers,(abfd),
1224 bfd *abfd)
1225 {
1226 unsigned int limit = bfd_get_symcount(abfd);
1227 unsigned int i;
1228 asymbol **p;
1229 {
1230 asection *s = abfd->sections->output_section;
1231 while (s) {
1232 BFD_ASSERT(s->lineno_count == 0);
1233 s = s->next;
1234 }
1235 }
1236
1237
1238 for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) {
1239 asymbol *q_maybe = *p;
1240 if (q_maybe->the_bfd->xvec->flavour == bfd_target_coff_flavour) {
1241 coff_symbol_type *q = coffsymbol(q_maybe);
1242 if (q->lineno) {
1243 /*
1244 This symbol has a linenumber, increment the owning
1245 section's linenumber count
1246 */
1247 alent *l = q->lineno;
1248 q->symbol.section->output_section->lineno_count++;
1249 l++;
1250 while (l->line_number) {
1251 q->symbol.section->output_section->lineno_count++;
1252 l++;
1253 }
1254 }
1255 }
1256 }
1257 }
1258
1259 #endif /* NO_COFF_LINENOS */
1260
1261 #ifndef NO_COFF_SYMBOLS
1262
1263 /*
1264 Takes a bfd and a symbol, returns a pointer to the coff specific area
1265 of the symbol if there is one.
1266 */
1267 static coff_symbol_type *
1268 DEFUN(coff_symbol_from,(ignore_abfd, symbol),
1269 bfd *ignore_abfd AND
1270 asymbol *symbol)
1271 {
1272 if (symbol->the_bfd->xvec->flavour != bfd_target_coff_flavour)
1273 return (coff_symbol_type *)NULL;
1274
1275 if (symbol->the_bfd->tdata.coff_obj_data == (coff_data_type*)NULL)
1276 return (coff_symbol_type *)NULL;
1277
1278 return (coff_symbol_type *) symbol;
1279 }
1280
1281
1282
1283 static void
1284 DEFUN(fixup_symbol_value,(coff_symbol_ptr, syment),
1285 coff_symbol_type *coff_symbol_ptr AND
1286 struct internal_syment *syment)
1287 {
1288
1289 /* Normalize the symbol flags */
1290 if (coff_symbol_ptr->symbol.section == &bfd_com_section) {
1291 /* a common symbol is undefined with a value */
1292 syment->n_scnum = N_UNDEF;
1293 syment->n_value = coff_symbol_ptr->symbol.value;
1294 }
1295 else if (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) {
1296 syment->n_value = coff_symbol_ptr->symbol.value;
1297 }
1298 else if (coff_symbol_ptr->symbol.section == & bfd_und_section) {
1299 syment->n_scnum = N_UNDEF;
1300 syment->n_value = 0;
1301 }
1302 else {
1303 if (coff_symbol_ptr->symbol.section) {
1304 syment->n_scnum =
1305 coff_symbol_ptr->symbol.section->output_section->target_index;
1306
1307 syment->n_value =
1308 coff_symbol_ptr->symbol.value +
1309 coff_symbol_ptr->symbol.section->output_offset +
1310 coff_symbol_ptr->symbol.section->output_section->vma;
1311 }
1312 else {
1313 BFD_ASSERT(0);
1314 /* This can happen, but I don't know why yet (steve@cygnus.com) */
1315 syment->n_scnum = N_ABS;
1316 syment->n_value = coff_symbol_ptr->symbol.value;
1317 }
1318 }
1319 }
1320
1321 /* run through all the symbols in the symbol table and work out what
1322 their indexes into the symbol table will be when output
1323
1324 Coff requires that each C_FILE symbol points to the next one in the
1325 chain, and that the last one points to the first external symbol. We
1326 do that here too.
1327
1328 */
1329 static void
1330 DEFUN(coff_renumber_symbols,(bfd_ptr),
1331 bfd *bfd_ptr)
1332 {
1333 unsigned int symbol_count = bfd_get_symcount(bfd_ptr);
1334 asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols;
1335 unsigned int native_index = 0;
1336 struct internal_syment *last_file = (struct internal_syment *)NULL;
1337 unsigned int symbol_index;
1338 for (symbol_index = 0; symbol_index < symbol_count; symbol_index++)
1339 {
1340 coff_symbol_type *coff_symbol_ptr = coff_symbol_from(bfd_ptr, symbol_ptr_ptr[symbol_index]);
1341 if (coff_symbol_ptr && coff_symbol_ptr->native) {
1342 combined_entry_type *s = coff_symbol_ptr->native;
1343 int i;
1344
1345 if (s->u.syment.n_sclass == C_FILE)
1346 {
1347 if (last_file != (struct internal_syment *)NULL) {
1348 last_file->n_value = native_index;
1349 }
1350 last_file = &(s->u.syment);
1351 }
1352 else {
1353
1354 /* Modify the symbol values according to their section and
1355 type */
1356
1357 fixup_symbol_value(coff_symbol_ptr, &(s->u.syment));
1358 }
1359 for (i = 0; i < s->u.syment.n_numaux + 1; i++) {
1360 s[i].offset = native_index ++;
1361 }
1362 }
1363 else {
1364 native_index++;
1365 }
1366 }
1367 }
1368
1369
1370 /*
1371 Run thorough the symbol table again, and fix it so that all pointers to
1372 entries are changed to the entries' index in the output symbol table.
1373
1374 */
1375 static void
1376 DEFUN(coff_mangle_symbols,(bfd_ptr),
1377 bfd *bfd_ptr)
1378 {
1379 unsigned int symbol_count = bfd_get_symcount(bfd_ptr);
1380 asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols;
1381 unsigned int symbol_index;
1382
1383 for (symbol_index = 0; symbol_index < symbol_count; symbol_index++)
1384 {
1385 coff_symbol_type *coff_symbol_ptr =
1386 coff_symbol_from(bfd_ptr, symbol_ptr_ptr[symbol_index]);
1387
1388 if (coff_symbol_ptr && coff_symbol_ptr->native) {
1389 int i;
1390 combined_entry_type *s = coff_symbol_ptr->native;
1391
1392 for (i = 0; i < s->u.syment.n_numaux ; i++) {
1393 combined_entry_type *a = s + i + 1;
1394 if (a->fix_tag) {
1395 a->u.auxent.x_sym.x_tagndx.l =
1396 a->u.auxent.x_sym.x_tagndx.p->offset;
1397 a->fix_tag = 0;
1398 }
1399 if (a->fix_end) {
1400 a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l =
1401 a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p->offset;
1402 a->fix_end = 0;
1403
1404 }
1405
1406 }
1407 }
1408 }
1409 }
1410
1411 static int string_size;
1412 static void
1413 DEFUN(coff_fix_symbol_name,(ignore_abfd, symbol, native),
1414 bfd *ignore_abfd AND
1415 asymbol *symbol AND
1416 combined_entry_type *native)
1417 {
1418 unsigned int name_length;
1419 union internal_auxent *auxent;
1420 char * name = ( char *)(symbol->name);
1421
1422 if (name == (char *) NULL) {
1423 /* coff symbols always have names, so we'll make one up */
1424 symbol->name = "strange";
1425 name = (char *)symbol->name;
1426 }
1427 name_length = strlen(name);
1428
1429 if (native->u.syment.n_sclass == C_FILE) {
1430 strncpy(native->u.syment._n._n_name, ".file", SYMNMLEN);
1431 auxent = &(native+1)->u.auxent;
1432
1433 #ifdef COFF_LONG_FILENAMES
1434 if (name_length <= FILNMLEN) {
1435 strncpy(auxent->x_file.x_fname, name, FILNMLEN);
1436 }
1437 else {
1438 auxent->x_file.x_n.x_offset = string_size + 4;
1439 auxent->x_file.x_n.x_zeroes = 0;
1440 string_size += name_length + 1;
1441 }
1442 #else
1443 strncpy(auxent->x_file.x_fname, name, FILNMLEN);
1444 if (name_length > FILNMLEN) {
1445 name[FILNMLEN] = '\0';
1446 }
1447 #endif
1448 }
1449 else
1450 { /* NOT A C_FILE SYMBOL */
1451 if (name_length <= SYMNMLEN) {
1452 /* This name will fit into the symbol neatly */
1453 strncpy(native->u.syment._n._n_name, symbol->name, SYMNMLEN);
1454 }
1455 else {
1456 native->u.syment._n._n_n._n_offset = string_size + 4;
1457 native->u.syment._n._n_n._n_zeroes = 0;
1458 string_size += name_length + 1;
1459 }
1460 }
1461 }
1462
1463
1464
1465 static unsigned int
1466 DEFUN(coff_write_symbol,(abfd, symbol, native, written),
1467 bfd *abfd AND
1468 asymbol *symbol AND
1469 combined_entry_type *native AND
1470 unsigned int written)
1471 {
1472 unsigned int numaux = native->u.syment.n_numaux;
1473 int type = native->u.syment.n_type;
1474 int class = native->u.syment.n_sclass;
1475 SYMENT buf;
1476 unsigned int j;
1477 if (symbol->section == &bfd_abs_section)
1478 {
1479 native->u.syment.n_scnum = N_ABS;
1480 }
1481 else if (symbol->section == &bfd_debug_section)
1482 {
1483 native->u.syment.n_scnum = N_DEBUG;
1484 }
1485 else if (symbol->section == &bfd_und_section)
1486 {
1487 native->u.syment.n_scnum = N_UNDEF;
1488 }
1489 else
1490 {
1491 native->u.syment.n_scnum =
1492 symbol->section->output_section->target_index;
1493 }
1494
1495
1496 coff_fix_symbol_name(abfd, symbol, native);
1497
1498 coff_swap_sym_out(abfd, &native->u.syment, &buf);
1499 bfd_write((PTR)& buf, 1, SYMESZ, abfd);
1500 for (j = 0; j <= native->u.syment.n_numaux; j++)
1501 {
1502 AUXENT buf1;
1503 bzero((PTR)&buf, AUXESZ);
1504 coff_swap_aux_out(abfd,
1505 &( (native + j + 1)->u.auxent), type, class, &buf1);
1506 bfd_write((PTR) (&buf1), 1, AUXESZ, abfd);
1507 }
1508 /*
1509 Reuse somewhere in the symbol to keep the index
1510 */
1511 set_index(symbol, written);
1512 return written + 1 + numaux;
1513 }
1514
1515
1516 static unsigned int
1517 DEFUN(coff_write_alien_symbol,(abfd, symbol, written),
1518 bfd *abfd AND
1519 asymbol *symbol AND
1520 unsigned int written)
1521 {
1522 /*
1523 This symbol has been created by the loader, or come from a non
1524 coff format. It has no native element to inherit, make our
1525 own
1526 */
1527 combined_entry_type *native;
1528 combined_entry_type dummy;
1529 native = &dummy;
1530 native->u.syment.n_type = T_NULL;
1531 #ifdef I960
1532 native->u.syment.n_flags = 0;
1533 #endif
1534 if (symbol->section == &bfd_und_section)
1535 {
1536 native->u.syment.n_scnum = N_UNDEF;
1537 native->u.syment.n_value = symbol->value;
1538 }
1539 else if (symbol->section == &bfd_com_section)
1540 {
1541 native->u.syment.n_scnum = N_UNDEF;
1542 native->u.syment.n_value = symbol->value;
1543
1544 }
1545
1546 else if (symbol->flags & BSF_DEBUGGING) {
1547 /*
1548 remove name so it doesn't take up any space
1549 */
1550 symbol->name = "";
1551 }
1552 else {
1553 native->u.syment.n_scnum = symbol->section->output_section->target_index;
1554 native->u.syment.n_value = symbol->value +
1555 symbol->section->output_section->vma +
1556 symbol->section->output_offset;
1557 #ifdef I960
1558 /* Copy the any flags from the the file hdr into the symbol */
1559 {
1560 coff_symbol_type *c = coff_symbol_from(abfd, symbol);
1561 if (c != (coff_symbol_type *)NULL) {
1562 native->u.syment.n_flags = c->symbol.the_bfd->flags;
1563 }
1564 }
1565 #endif
1566 }
1567
1568 #ifdef HASPAD1
1569 native->u.syment.pad1[0] = 0;
1570 native->u.syment.pad1[0] = 0;
1571 #endif
1572
1573 native->u.syment.n_type = 0;
1574 if (symbol->flags & BSF_LOCAL)
1575 native->u.syment.n_sclass = C_STAT;
1576 else
1577 native->u.syment.n_sclass = C_EXT;
1578 native->u.syment.n_numaux = 0;
1579
1580 return coff_write_symbol(abfd, symbol, native, written);
1581 }
1582
1583 static unsigned int
1584 DEFUN(coff_write_native_symbol,(abfd, symbol, written),
1585 bfd *abfd AND
1586 coff_symbol_type *symbol AND
1587 unsigned int written)
1588 {
1589 /*
1590 Does this symbol have an ascociated line number - if so then
1591 make it remember this symbol index. Also tag the auxent of
1592 this symbol to point to the right place in the lineno table
1593 */
1594 combined_entry_type *native = symbol->native;
1595
1596 alent *lineno = symbol->lineno;
1597
1598 if (lineno && !symbol->done_lineno) {
1599 unsigned int count = 0;
1600 lineno[count].u.offset = written;
1601 if (native->u.syment.n_numaux) {
1602 union internal_auxent *a = &((native+1)->u.auxent);
1603
1604 a->x_sym.x_fcnary.x_fcn.x_lnnoptr =
1605 symbol->symbol.section->output_section->moving_line_filepos;
1606 }
1607 /*
1608 And count and relocate all other linenumbers
1609 */
1610
1611 count++;
1612 while (lineno[count].line_number) {
1613 lineno[count].u.offset +=
1614 symbol->symbol.section->output_section->vma +
1615 symbol->symbol.section->output_offset;
1616 count++;
1617 }
1618 symbol->done_lineno = true;
1619
1620 symbol->symbol.section->output_section->moving_line_filepos +=
1621 count * LINESZ;
1622 }
1623 return coff_write_symbol(abfd, &( symbol->symbol), native,written);
1624 }
1625
1626 static void
1627 DEFUN(coff_write_symbols,(abfd),
1628 bfd *abfd)
1629 {
1630 unsigned int i;
1631 unsigned int limit = bfd_get_symcount(abfd);
1632 unsigned int written = 0;
1633
1634 asymbol **p;
1635
1636 string_size = 0;
1637
1638
1639 /* Seek to the right place */
1640 bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET);
1641
1642 /* Output all the symbols we have */
1643
1644 written = 0;
1645 for (p = abfd->outsymbols, i = 0; i < limit; i++, p++)
1646 {
1647 asymbol *symbol = *p;
1648 coff_symbol_type *c_symbol = coff_symbol_from(abfd, symbol);
1649
1650 if (c_symbol == (coff_symbol_type *) NULL ||
1651 c_symbol->native == (combined_entry_type *)NULL)
1652 {
1653 written = coff_write_alien_symbol(abfd, symbol, written);
1654 }
1655 else
1656 {
1657 written = coff_write_native_symbol(abfd, c_symbol, written);
1658 }
1659
1660 }
1661
1662 bfd_get_symcount(abfd) = written;
1663
1664 /* Now write out strings */
1665
1666 if (string_size != 0)
1667 {
1668 unsigned int size = string_size + 4;
1669 bfd_byte buffer[4];
1670
1671 bfd_h_put_32(abfd, size, buffer);
1672 bfd_write((PTR) buffer, 1, sizeof(buffer), abfd);
1673 for (p = abfd->outsymbols, i = 0;
1674 i < limit;
1675 i++, p++)
1676 {
1677 asymbol *q = *p;
1678 size_t name_length = strlen(q->name);
1679 int maxlen;
1680 coff_symbol_type* c_symbol = coff_symbol_from(abfd, q);
1681 maxlen = ((c_symbol != NULL && c_symbol->native != NULL) &&
1682 (c_symbol->native->u.syment.n_sclass == C_FILE)) ?
1683 FILNMLEN : SYMNMLEN;
1684
1685 if (name_length > maxlen) {
1686 bfd_write((PTR) (q->name), 1, name_length + 1, abfd);
1687 }
1688 }
1689 }
1690 else {
1691 /* We would normally not write anything here, but we'll write
1692 out 4 so that any stupid coff reader which tries to read
1693 the string table even when there isn't one won't croak.
1694 */
1695
1696 uint32e_type size = 4;
1697 size = size;
1698 bfd_write((PTR)&size, 1, sizeof(size), abfd);
1699
1700 }
1701 }
1702
1703 /*
1704 SUBSUBSECTION
1705 Writing Relocations
1706
1707 To write relocations, all the back end does is step though the
1708 canonical relocation table, and create an
1709 @code{internal_reloc}. The symbol index to use is removed from
1710 the @code{offset} field in the symbol table supplied, the
1711 address comes directly from the sum of the section base
1712 address and the relocation offset and the type is dug directly
1713 from the howto field. Then the @code{internal_reloc} is
1714 swapped into the shape of an @code{external_reloc} and written
1715 out to disk.
1716
1717 */
1718
1719 static void
1720 DEFUN(coff_write_relocs,(abfd),
1721 bfd *abfd)
1722 {
1723 asection *s;
1724 for (s = abfd->sections; s != (asection *) NULL; s = s->next) {
1725 unsigned int i;
1726 struct external_reloc dst;
1727
1728 arelent **p = s->orelocation;
1729 bfd_seek(abfd, s->rel_filepos, SEEK_SET);
1730 for (i = 0; i < s->reloc_count; i++) {
1731 struct internal_reloc n;
1732 arelent *q = p[i];
1733 memset((PTR)&n, 0, sizeof(n));
1734 n.r_vaddr = q->address + s->vma;
1735 if (q->sym_ptr_ptr) {
1736 n.r_symndx = get_index((*(q->sym_ptr_ptr)));
1737 }
1738 #ifdef SELECT_RELOC
1739 /* Work out reloc type from what is required */
1740 SELECT_RELOC(n.r_type, q->howto);
1741 #else
1742 n.r_type = q->howto->type;
1743 #endif
1744 coff_swap_reloc_out(abfd, &n, &dst);
1745 bfd_write((PTR) &n, 1, RELSZ, abfd);
1746 }
1747 }
1748 }
1749 #endif /* NO_COFF_SYMBOLS */
1750
1751 #ifndef NO_COFF_LINENOS
1752
1753 static void
1754 DEFUN(coff_write_linenumbers,(abfd),
1755 bfd *abfd)
1756 {
1757 asection *s;
1758 for (s = abfd->sections; s != (asection *) NULL; s = s->next) {
1759 if (s->lineno_count) {
1760 asymbol **q = abfd->outsymbols;
1761 bfd_seek(abfd, s->line_filepos, SEEK_SET);
1762 /* Find all the linenumbers in this section */
1763 while (*q) {
1764 asymbol *p = *q;
1765 alent *l = BFD_SEND(p->the_bfd, _get_lineno, (p->the_bfd, p));
1766 if (l) {
1767 /* Found a linenumber entry, output */
1768 struct internal_lineno out;
1769 LINENO buff;
1770 memset( (PTR)&out, 0, sizeof(out));
1771 out.l_lnno = 0;
1772 out.l_addr.l_symndx = l->u.offset;
1773 coff_swap_lineno_out(abfd, &out, &buff);
1774 bfd_write((PTR) &buff, 1, LINESZ, abfd);
1775 l++;
1776 while (l->line_number) {
1777 out.l_lnno = l->line_number;
1778 out.l_addr.l_symndx = l->u.offset;
1779 coff_swap_lineno_out(abfd, &out, &buff);
1780 bfd_write((PTR) &buff, 1, LINESZ, abfd);
1781 l++;
1782 }
1783 }
1784 q++;
1785 }
1786 }
1787 }
1788 }
1789
1790 static alent *
1791 DEFUN(coff_get_lineno,(ignore_abfd, symbol),
1792 bfd *ignore_abfd AND
1793 asymbol *symbol)
1794 {
1795 return coffsymbol(symbol)->lineno;
1796 }
1797
1798 #endif /* NO_COFF_LINENOS */
1799
1800 static asymbol *
1801 coff_make_empty_symbol(abfd)
1802 bfd *abfd;
1803 {
1804 coff_symbol_type *new = (coff_symbol_type *) bfd_alloc(abfd, sizeof(coff_symbol_type));
1805 if (new == NULL) {
1806 bfd_error = no_memory;
1807 return (NULL);
1808 } /* on error */
1809 new->native = 0;
1810 new->lineno = (alent *) NULL;
1811 new->done_lineno = false;
1812 new->symbol.the_bfd = abfd;
1813 return &new->symbol;
1814 }
1815
1816 #ifndef NO_COFF_SYMBOLS
1817
1818 static void
1819 DEFUN(coff_print_symbol,(ignore_abfd, filep, symbol, how),
1820 bfd *ignore_abfd AND
1821 PTR filep AND
1822 asymbol *symbol AND
1823 bfd_print_symbol_type how)
1824 {
1825 FILE *file = (FILE *)filep;
1826 switch (how) {
1827 case bfd_print_symbol_name:
1828 fprintf(file, "%s", symbol->name);
1829 break;
1830 case bfd_print_symbol_more:
1831 fprintf(file, "coff %lx %lx", (unsigned long) coffsymbol(symbol)->native,
1832 (unsigned long) coffsymbol(symbol)->lineno);
1833 break;
1834 case bfd_print_symbol_nm:
1835
1836 {
1837 CONST char *section_name = symbol->section->name;
1838 bfd_print_symbol_vandf((PTR) file, symbol);
1839
1840
1841 fprintf(file, " %-5s %s %s %s",
1842 section_name,
1843 coffsymbol(symbol)->native ? "n" : "g",
1844 coffsymbol(symbol)->lineno ? "l" : " ",
1845 symbol->name);
1846 }
1847
1848
1849 break;
1850 case bfd_print_symbol_all:
1851 /* Print out the symbols in a reasonable way */
1852 {
1853 CONST char *section_name = symbol->section->name;
1854
1855
1856 if (coffsymbol(symbol)->native)
1857 {
1858 unsigned int aux;
1859 combined_entry_type *combined = coffsymbol(symbol)->native;
1860 combined_entry_type *root = obj_raw_syments(ignore_abfd);
1861
1862 fprintf(file,"[%3d]",
1863 combined - root);
1864
1865
1866 fprintf(file, "(sc %2d)(fl%4x)(ty%3x)(sc%3d) nx(%d) %08x %s",
1867 combined->u.syment.n_scnum,
1868 combined->u.syment.n_flags,
1869 combined->u.syment.n_type,
1870 combined->u.syment.n_sclass,
1871 combined->u.syment.n_numaux,
1872 combined->u.syment.n_value,
1873 symbol->name
1874 );
1875 for (aux = 0; aux < combined->u.syment.n_numaux; aux++)
1876 {
1877 fprintf(file,"\n");
1878 switch (combined->u.syment.n_sclass) {
1879 case C_FILE:
1880 fprintf(file, "File ");
1881 break;
1882 default:
1883 fprintf(file, "AUX lnno %x size %x tagndx %x",
1884 combined[aux+1].u.auxent.x_sym.x_misc.x_lnsz.x_lnno,
1885 combined[aux+1].u.auxent.x_sym.x_misc.x_lnsz.x_size,
1886 combined[aux+1].u.auxent.x_sym.x_tagndx.l);
1887 break;
1888
1889 }
1890
1891 }
1892
1893 {
1894 struct lineno_cache_entry *l = coffsymbol(symbol)->lineno;
1895 if (l)
1896 {
1897 printf("\n%s :", l->u.sym->name);
1898 l++;
1899 while (l->line_number)
1900 {
1901 printf("\n%4d : %x",
1902 l->line_number,
1903 l->u.offset);
1904 l++;
1905
1906 }
1907 }
1908 }
1909
1910
1911
1912 }
1913
1914 else {
1915 bfd_print_symbol_vandf((PTR) file, symbol);
1916 fprintf(file, " %-5s %s %s %s",
1917 section_name,
1918 coffsymbol(symbol)->native ? "n" : "g",
1919 coffsymbol(symbol)->lineno ? "l" : " ",
1920 symbol->name);
1921 }
1922
1923 }
1924
1925 }
1926 }
1927
1928 #endif /* NO_COFF_SYMBOLS */
1929
1930 /* Set flags and magic number of a coff file from architecture and machine
1931 type. Result is true if we can represent the arch&type, false if not. */
1932
1933 static boolean
1934 DEFUN(coff_set_flags,(abfd, magicp, flagsp),
1935 bfd *abfd AND
1936 unsigned *magicp AND
1937 unsigned short *flagsp)
1938 {
1939 switch (bfd_get_arch(abfd)) {
1940
1941 #ifdef I960ROMAGIC
1942
1943 case bfd_arch_i960:
1944
1945 {
1946 unsigned flags;
1947 *magicp = I960ROMAGIC;
1948 /*
1949 ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC :
1950 I960RWMAGIC); FIXME???
1951 */
1952 switch (bfd_get_mach(abfd)) {
1953 case bfd_mach_i960_core:
1954 flags = F_I960CORE;
1955 break;
1956 case bfd_mach_i960_kb_sb:
1957 flags = F_I960KB;
1958 break;
1959 case bfd_mach_i960_mc:
1960 flags = F_I960MC;
1961 break;
1962 case bfd_mach_i960_xa:
1963 flags = F_I960XA;
1964 break;
1965 case bfd_mach_i960_ca:
1966 flags = F_I960CA;
1967 break;
1968 case bfd_mach_i960_ka_sa:
1969 flags = F_I960KA;
1970 break;
1971 default:
1972 return false;
1973 }
1974 *flagsp = flags;
1975 return true;
1976 }
1977 break;
1978 #endif
1979 #ifdef MIPS
1980 case bfd_arch_mips:
1981 *magicp = MIPS_MAGIC_2;
1982 return true;
1983 break;
1984 #endif
1985 #ifdef I386MAGIC
1986 case bfd_arch_i386:
1987 *magicp = I386MAGIC;
1988 return true;
1989 #endif
1990 #ifdef MC68MAGIC
1991 case bfd_arch_m68k:
1992 *magicp = MC68MAGIC;
1993 return true;
1994 #endif
1995
1996 #ifdef MC88MAGIC
1997 case bfd_arch_m88k:
1998 *magicp = MC88OMAGIC;
1999 return true;
2000 break;
2001 #endif
2002 #ifdef H8300MAGIC
2003 case bfd_arch_h8300:
2004 *magicp = H8300MAGIC;
2005 return true;
2006 break;
2007 #endif
2008 #ifdef A29K_MAGIC_BIG
2009 case bfd_arch_a29k:
2010 if (abfd->xvec->byteorder_big_p)
2011 *magicp = A29K_MAGIC_BIG;
2012 else
2013 *magicp = A29K_MAGIC_LITTLE;
2014 return true;
2015 break;
2016 #endif
2017
2018 #ifdef U802TOCMAGIC
2019 case bfd_arch_rs6000:
2020 *magicp = U802TOCMAGIC;
2021 break;
2022 #endif
2023
2024 default: /* Unknown architecture */
2025 /* return false; -- fall through to "return false" below, to avoid
2026 "statement never reached" errors on the one below. */
2027 break;
2028 }
2029
2030 return false;
2031 }
2032
2033
2034 static boolean
2035 DEFUN(coff_set_arch_mach,(abfd, arch, machine),
2036 bfd *abfd AND
2037 enum bfd_architecture arch AND
2038 unsigned long machine)
2039 {
2040 unsigned dummy1;
2041 unsigned short dummy2;
2042 bfd_default_set_arch_mach(abfd, arch, machine);
2043
2044 if (arch != bfd_arch_unknown &&
2045 coff_set_flags(abfd, &dummy1, &dummy2) != true)
2046 return false; /* We can't represent this type */
2047 return true; /* We're easy ... */
2048 }
2049
2050
2051 /* Calculate the file position for each section. */
2052
2053 static void
2054 DEFUN(coff_compute_section_file_positions,(abfd),
2055 bfd *abfd)
2056 {
2057 asection *current;
2058 asection *previous = (asection *)NULL;
2059 file_ptr sofar = FILHSZ;
2060 file_ptr old_sofar;
2061 if (bfd_get_start_address(abfd))
2062 {
2063 /* A start address may have been added to the original file. In this
2064 case it will need an optional header to record it. */
2065 abfd->flags |= EXEC_P;
2066 }
2067
2068 if (abfd->flags & EXEC_P)
2069 sofar += AOUTSZ;
2070
2071 sofar += abfd->section_count * SCNHSZ;
2072 for (current = abfd->sections;
2073 current != (asection *)NULL;
2074 current = current->next) {
2075
2076 /* Only deal with sections which have contents */
2077 if (!(current->flags & SEC_HAS_CONTENTS))
2078 continue;
2079
2080 /* Align the sections in the file to the same boundary on
2081 which they are aligned in virtual memory. I960 doesn't
2082 do this (FIXME) so we can stay in sync with Intel. 960
2083 doesn't yet page from files... */
2084 #ifndef I960
2085 {
2086 /* make sure this section is aligned on the right boundary - by
2087 padding the previous section up if necessary */
2088
2089 old_sofar= sofar;
2090 sofar = BFD_ALIGN(sofar, 1 << current->alignment_power);
2091 if (previous != (asection *)NULL) {
2092 previous->_raw_size += sofar - old_sofar;
2093 }
2094 }
2095
2096 #endif
2097 /* FIXME, in demand paged files, the low order bits of the file
2098 offset must match the low order bits of the virtual address.
2099 "Low order" is apparently implementation defined. Add code
2100 here to round sofar up to match the virtual address. */
2101
2102 current->filepos = sofar;
2103
2104 /* make sure that this section is of the right size too */
2105 old_sofar = sofar += current->_raw_size;
2106 sofar = BFD_ALIGN(sofar, 1 << current->alignment_power);
2107 current->_raw_size += sofar - old_sofar ;
2108
2109 previous = current;
2110 }
2111 obj_relocbase(abfd) = sofar;
2112 }
2113
2114
2115
2116
2117 /* SUPPRESS 558 */
2118 /* SUPPRESS 529 */
2119 static boolean
2120 DEFUN(coff_write_object_contents,(abfd),
2121 bfd *abfd)
2122 {
2123 asection *current;
2124 unsigned int count;
2125
2126 boolean hasrelocs = false;
2127 boolean haslinno = false;
2128 file_ptr reloc_base;
2129 file_ptr lineno_base;
2130 file_ptr sym_base;
2131 file_ptr scn_base;
2132 file_ptr data_base;
2133 unsigned long reloc_size = 0;
2134 unsigned long lnno_size = 0;
2135 asection *text_sec = NULL;
2136 asection *data_sec = NULL;
2137 asection *bss_sec = NULL;
2138
2139 struct internal_filehdr internal_f;
2140 struct internal_aouthdr internal_a;
2141
2142
2143 bfd_error = system_call_error;
2144 /* Number the output sections, starting from one on the first section
2145 with a name which doesn't start with a * */
2146 count = 1;
2147 for (current = abfd->sections; current != (asection *)NULL;
2148 current = current->next)
2149 {
2150 current->target_index = count;
2151 }
2152
2153
2154
2155
2156
2157 if(abfd->output_has_begun == false) {
2158 coff_compute_section_file_positions(abfd);
2159 }
2160
2161 if (abfd->sections != (asection *)NULL) {
2162 scn_base = abfd->sections->filepos;
2163 }
2164 else {
2165 scn_base = 0;
2166 }
2167 if (bfd_seek(abfd, scn_base, SEEK_SET) != 0)
2168 return false;
2169 reloc_base = obj_relocbase(abfd);
2170
2171 /* Make a pass through the symbol table to count line number entries and
2172 put them into the correct asections */
2173
2174 #ifndef NO_COFF_LINENOS
2175 coff_count_linenumbers(abfd);
2176 #endif
2177 data_base = scn_base;
2178
2179 /* Work out the size of the reloc and linno areas */
2180
2181 for (current = abfd->sections; current != NULL; current =
2182 current->next)
2183 {
2184 /* We give section headers to +ve indexes */
2185 if (current->target_index > 0)
2186 {
2187
2188 reloc_size += current->reloc_count * RELSZ;
2189 #ifndef NO_COFF_LINENOS
2190 lnno_size += current->lineno_count * LINESZ;
2191 #endif
2192 data_base += SCNHSZ;
2193 }
2194
2195 }
2196
2197 lineno_base = reloc_base + reloc_size;
2198 sym_base = lineno_base + lnno_size;
2199
2200 /* Indicate in each section->line_filepos its actual file address */
2201 for (current = abfd->sections; current != NULL; current =
2202 current->next)
2203 {
2204 if (current->target_index > 0)
2205 {
2206
2207 if (current->lineno_count) {
2208 current->line_filepos = lineno_base;
2209 current->moving_line_filepos = lineno_base;
2210 #ifndef NO_COFF_LINENOS
2211 lineno_base += current->lineno_count * LINESZ;
2212 #endif
2213 }
2214 else {
2215 current->line_filepos = 0;
2216 }
2217 if (current->reloc_count) {
2218 current->rel_filepos = reloc_base;
2219 reloc_base += current->reloc_count * sizeof(struct internal_reloc);
2220 }
2221 else {
2222 current->rel_filepos = 0;
2223 }
2224 }
2225 }
2226
2227
2228
2229 /* Write section headers to the file. */
2230 internal_f.f_nscns = 0;
2231 bfd_seek(abfd,
2232 (file_ptr) ((abfd->flags & EXEC_P) ?
2233 (FILHSZ + AOUTSZ) : FILHSZ),
2234 SEEK_SET);
2235
2236 {
2237 #if 0
2238 unsigned int pad = abfd->flags & D_PAGED ? data_base : 0;
2239 #endif
2240 unsigned int pad = 0;
2241
2242 for (current = abfd->sections;
2243 current != NULL;
2244 current = current->next) {
2245 struct internal_scnhdr section;
2246 if (current->target_index > 0)
2247 {
2248 internal_f.f_nscns ++;
2249 strncpy(&(section.s_name[0]), current->name, 8);
2250 section.s_vaddr = current->vma + pad;
2251 section.s_paddr = current->vma + pad;
2252 section.s_size = current->_raw_size - pad;
2253 /*
2254 If this section has no size or is unloadable then the scnptr
2255 will be 0 too
2256 */
2257 if (current->_raw_size - pad == 0 ||
2258 (current->flags & SEC_LOAD) == 0) {
2259 section.s_scnptr = 0;
2260 }
2261 else {
2262 section.s_scnptr = current->filepos;
2263 }
2264 section.s_relptr = current->rel_filepos;
2265 section.s_lnnoptr = current->line_filepos;
2266 section.s_nreloc = current->reloc_count;
2267 section.s_nlnno = current->lineno_count;
2268 if (current->reloc_count != 0)
2269 hasrelocs = true;
2270 if (current->lineno_count != 0)
2271 haslinno = true;
2272
2273 section.s_flags = sec_to_styp_flags(current->name,current->flags);
2274
2275 if (!strcmp(current->name, _TEXT)) {
2276 text_sec = current;
2277 } else if (!strcmp(current->name, _DATA)) {
2278 data_sec = current;
2279 } else if (!strcmp(current->name, _BSS)) {
2280 bss_sec = current;
2281 }
2282
2283 #ifdef I960
2284 section.s_align = (current->alignment_power
2285 ? 1 << current->alignment_power
2286 : 0);
2287
2288 #endif
2289 {
2290 SCNHDR buff;
2291
2292 coff_swap_scnhdr_out(abfd, &section, &buff);
2293 bfd_write((PTR) (&buff), 1, SCNHSZ, abfd);
2294
2295 }
2296
2297 pad = 0;
2298 }
2299 }
2300 }
2301
2302
2303 /* OK, now set up the filehdr... */
2304
2305 /* Don't include the internal abs section in the section count */
2306
2307 /*
2308 We will NOT put a fucking timestamp in the header here. Every time you
2309 put it back, I will come in and take it out again. I'm sorry. This
2310 field does not belong here. We fill it with a 0 so it compares the
2311 same but is not a reasonable time. -- gnu@cygnus.com
2312 */
2313 /*
2314 Well, I like it, and now we have *customers* who have requested it,
2315 so I'm conditionally compiling it in.
2316
2317 sac@cygnus.com
2318 */
2319 #ifndef NOCOFF_TIMESTAMP
2320 internal_f.f_timdat = time(0);
2321 #else
2322 internal_f.f_timdat = 0;
2323 #endif
2324
2325 if (bfd_get_symcount(abfd) != 0)
2326 internal_f.f_symptr = sym_base;
2327 else
2328 internal_f.f_symptr = 0;
2329
2330 internal_f.f_flags = 0;
2331
2332 if (abfd->flags & EXEC_P)
2333 internal_f.f_opthdr = AOUTSZ;
2334 else
2335 internal_f.f_opthdr = 0;
2336
2337 if (!hasrelocs)
2338 internal_f.f_flags |= F_RELFLG;
2339 if (!haslinno)
2340 internal_f.f_flags |= F_LNNO;
2341 if (0 == bfd_get_symcount(abfd))
2342 internal_f.f_flags |= F_LSYMS;
2343 if (abfd->flags & EXEC_P)
2344 internal_f.f_flags |= F_EXEC;
2345
2346 if (!abfd->xvec->byteorder_big_p)
2347 internal_f.f_flags |= F_AR32WR;
2348 else
2349 internal_f.f_flags |= F_AR32W;
2350
2351 /*
2352 FIXME, should do something about the other byte orders and
2353 architectures.
2354 */
2355
2356 /* Set up architecture-dependent stuff */
2357
2358 { unsigned int magic = 0;
2359 unsigned short flags = 0;
2360 coff_set_flags(abfd, &magic, &flags);
2361 internal_f.f_magic = magic;
2362 internal_f.f_flags |= flags;
2363 /* ...and the "opt"hdr... */
2364
2365 #ifdef A29K
2366 # ifdef ULTRA3 /* NYU's machine */
2367 /* FIXME: This is a bogus check. I really want to see if there
2368 * is a .shbss or a .shdata section, if so then set the magic
2369 * number to indicate a shared data executable.
2370 */
2371 if (internal_f.f_nscns >= 7)
2372 internal_a.magic = SHMAGIC; /* Shared magic */
2373 else
2374 # endif /* ULTRA3 */
2375 internal_a.magic = NMAGIC; /* Assume separate i/d */
2376 #define __A_MAGIC_SET__
2377 #endif /* A29K */
2378 #ifdef I960
2379 internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC);
2380 #define __A_MAGIC_SET__
2381 #endif /* I960 */
2382 #if M88
2383 #define __A_MAGIC_SET__
2384 internal_a.magic = PAGEMAGICBCS;
2385 #endif /* M88 */
2386
2387 #if M68 || I386 || MIPS
2388 #define __A_MAGIC_SET__
2389 /* Never was anything here for the 68k */
2390 #endif /* M88 */
2391
2392 #if RS6000COFF_C
2393 #define __A_MAGIC_SET__
2394 internal_a.magic = (abfd->flags & D_PAGED)? RS6K_AOUTHDR_ZMAGIC:
2395 (abfd->flags & WP_TEXT)? RS6K_AOUTHDR_NMAGIC:
2396 RS6K_AOUTHDR_OMAGIC;
2397 #endif
2398
2399 #ifndef __A_MAGIC_SET__
2400 # include "Your aouthdr magic number is not being set!"
2401 #else
2402 # undef __A_MAGIC_SET__
2403 #endif
2404 }
2405 /* Now should write relocs, strings, syms */
2406 obj_sym_filepos(abfd) = sym_base;
2407
2408 #ifndef NO_COFF_SYMBOLS
2409 if (bfd_get_symcount(abfd) != 0) {
2410 coff_renumber_symbols(abfd);
2411 coff_mangle_symbols(abfd);
2412 coff_write_symbols(abfd);
2413 coff_write_linenumbers(abfd);
2414 coff_write_relocs(abfd);
2415 }
2416 #endif /* NO_COFF_SYMBOLS */
2417 if (text_sec) {
2418 internal_a.tsize = bfd_get_section_size_before_reloc(text_sec);
2419 internal_a.text_start = internal_a.tsize ? text_sec->vma : 0;
2420 }
2421 if (data_sec) {
2422 internal_a.dsize = bfd_get_section_size_before_reloc(data_sec);
2423 internal_a.data_start = internal_a.dsize ? data_sec->vma : 0;
2424 }
2425 if (bss_sec) {
2426 internal_a.bsize = bfd_get_section_size_before_reloc(bss_sec);
2427 }
2428
2429 internal_a.entry = bfd_get_start_address(abfd);
2430 internal_f.f_nsyms = bfd_get_symcount(abfd);
2431
2432 /* now write them */
2433 if (bfd_seek(abfd, 0L, SEEK_SET) != 0)
2434 return false;
2435 {
2436 FILHDR buff;
2437 coff_swap_filehdr_out(abfd, &internal_f, &buff);
2438 bfd_write((PTR) &buff, 1, FILHSZ, abfd);
2439 }
2440 if (abfd->flags & EXEC_P) {
2441 AOUTHDR buff;
2442 coff_swap_aouthdr_out(abfd, &internal_a, &buff);
2443 bfd_write((PTR) &buff, 1, AOUTSZ, abfd);
2444 }
2445 return true;
2446 }
2447
2448 #ifndef NO_COFF_SYMBOLS
2449
2450 /*
2451 this function transforms the offsets into the symbol table into
2452 pointers to syments.
2453 */
2454
2455
2456 static void
2457 DEFUN(coff_pointerize_aux,(ignore_abfd, table_base, type, class, auxent),
2458 bfd *ignore_abfd AND
2459 combined_entry_type *table_base AND
2460 int type AND
2461 int class AND
2462 combined_entry_type *auxent)
2463 {
2464 /* Don't bother if this is a file or a section */
2465 if (class == C_STAT && type == T_NULL) return;
2466 if (class == C_FILE) return;
2467
2468 /* Otherwise patch up */
2469 if (ISFCN(type) || ISTAG(class) || class == C_BLOCK) {
2470 auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = table_base +
2471 auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l;
2472 auxent->fix_end = 1;
2473 }
2474 if (auxent->u.auxent.x_sym.x_tagndx.l != 0) {
2475 auxent->u.auxent.x_sym.x_tagndx.p =
2476 table_base + auxent->u.auxent.x_sym.x_tagndx.l;
2477 auxent->fix_tag = 1;
2478 }
2479 }
2480
2481 #endif /* NO_COFF_SYMBOLS */
2482
2483 static boolean
2484 DEFUN(coff_set_section_contents,(abfd, section, location, offset, count),
2485 bfd *abfd AND
2486 sec_ptr section AND
2487 PTR location AND
2488 file_ptr offset AND
2489 bfd_size_type count)
2490 {
2491 if (abfd->output_has_begun == false) /* set by bfd.c handler */
2492 coff_compute_section_file_positions(abfd);
2493
2494 bfd_seek(abfd, (file_ptr) (section->filepos + offset), SEEK_SET);
2495
2496 if (count != 0) {
2497 return (bfd_write(location, 1, count, abfd) == count) ? true : false;
2498 }
2499 return true;
2500 }
2501 #if 0
2502 static boolean
2503 coff_close_and_cleanup(abfd)
2504 bfd *abfd;
2505 {
2506 if (!bfd_read_p(abfd))
2507 switch (abfd->format) {
2508 case bfd_archive:
2509 if (!_bfd_write_archive_contents(abfd))
2510 return false;
2511 break;
2512 case bfd_object:
2513 if (!coff_write_object_contents(abfd))
2514 return false;
2515 break;
2516 default:
2517 bfd_error = invalid_operation;
2518 return false;
2519 }
2520
2521 /* We depend on bfd_close to free all the memory on the obstack. */
2522 /* FIXME if bfd_release is not using obstacks! */
2523 return true;
2524 }
2525
2526 #endif
2527 static PTR
2528 buy_and_read(abfd, where, seek_direction, size)
2529 bfd *abfd;
2530 file_ptr where;
2531 int seek_direction;
2532 size_t size;
2533 {
2534 PTR area = (PTR) bfd_alloc(abfd, size);
2535 if (!area) {
2536 bfd_error = no_memory;
2537 return (NULL);
2538 }
2539 bfd_seek(abfd, where, seek_direction);
2540 if (bfd_read(area, 1, size, abfd) != size) {
2541 bfd_error = system_call_error;
2542 return (NULL);
2543 } /* on error */
2544 return (area);
2545 } /* buy_and_read() */
2546
2547
2548 #ifndef NO_COFF_SYMBOLS
2549
2550 static char *
2551 DEFUN(build_string_table,(abfd),
2552 bfd *abfd)
2553 {
2554 char string_table_size_buffer[4];
2555 unsigned int string_table_size;
2556 char *string_table;
2557
2558 /* At this point we should be "seek"'d to the end of the
2559 symbols === the symbol table size. */
2560 if (bfd_read((char *) string_table_size_buffer,
2561 sizeof(string_table_size_buffer),
2562 1, abfd) != sizeof(string_table_size)) {
2563 bfd_error = system_call_error;
2564 return (NULL);
2565 } /* on error */
2566
2567 string_table_size = bfd_h_get_32(abfd, (bfd_byte *) string_table_size_buffer);
2568
2569 if ((string_table = (PTR) bfd_alloc(abfd, string_table_size -= 4)) == NULL) {
2570 bfd_error = no_memory;
2571 return (NULL);
2572 } /* on mallocation error */
2573 if (bfd_read(string_table, string_table_size, 1, abfd) != string_table_size) {
2574 bfd_error = system_call_error;
2575 return (NULL);
2576 }
2577 return string_table;
2578 }
2579
2580 /* Allocate space for the ".debug" section, and read it.
2581 We did not read the debug section until now, because
2582 we didn't want to go to the trouble until someone needed it. */
2583
2584 static char *
2585 DEFUN(build_debug_section,(abfd),
2586 bfd *abfd)
2587 {
2588 char *debug_section;
2589 long position;
2590
2591 asection *sect = bfd_get_section_by_name (abfd, ".debug");
2592
2593 if (!sect) {
2594 bfd_error = no_debug_section;
2595 return NULL;
2596 }
2597
2598 debug_section = (PTR) bfd_alloc (abfd,
2599 bfd_get_section_size_before_reloc (sect));
2600 if (debug_section == NULL) {
2601 bfd_error = no_memory;
2602 return NULL;
2603 }
2604
2605 /* Seek to the beginning of the `.debug' section and read it.
2606 Save the current position first; it is needed by our caller.
2607 Then read debug section and reset the file pointer. */
2608
2609 position = bfd_tell (abfd);
2610 bfd_seek (abfd, sect->filepos, SEEK_SET);
2611 if (bfd_read (debug_section,
2612 bfd_get_section_size_before_reloc (sect), 1, abfd)
2613 != bfd_get_section_size_before_reloc(sect)) {
2614 bfd_error = system_call_error;
2615 return NULL;
2616 }
2617 bfd_seek (abfd, position, SEEK_SET);
2618 return debug_section;
2619 }
2620
2621
2622 /* Return a pointer to a malloc'd copy of 'name'. 'name' may not be
2623 \0-terminated, but will not exceed 'maxlen' characters. The copy *will*
2624 be \0-terminated. */
2625 static char *
2626 DEFUN(copy_name,(abfd, name, maxlen),
2627 bfd *abfd AND
2628 char *name AND
2629 int maxlen)
2630 {
2631 int len;
2632 char *newname;
2633
2634 for (len = 0; len < maxlen; ++len) {
2635 if (name[len] == '\0') {
2636 break;
2637 }
2638 }
2639
2640 if ((newname = (PTR) bfd_alloc(abfd, len+1)) == NULL) {
2641 bfd_error = no_memory;
2642 return (NULL);
2643 }
2644 strncpy(newname, name, len);
2645 newname[len] = '\0';
2646 return newname;
2647 }
2648
2649
2650 /* Read a symbol table into freshly bfd_allocated memory, swap it, and
2651 knit the symbol names into a normalized form. By normalized here I
2652 mean that all symbols have an n_offset pointer that points to a null-
2653 terminated string. */
2654
2655 #ifndef SYMNAME_IN_DEBUG
2656 #define SYMNAME_IN_DEBUG(x) 0
2657 #endif
2658
2659 static combined_entry_type *
2660 DEFUN(get_normalized_symtab,(abfd),
2661 bfd *abfd)
2662 {
2663 combined_entry_type *internal;
2664 combined_entry_type *internal_ptr;
2665 combined_entry_type *symbol_ptr;
2666 combined_entry_type *internal_end;
2667 SYMENT *raw;
2668 SYMENT *raw_src;
2669 SYMENT *raw_end;
2670 char *string_table = NULL;
2671 char *debug_section = NULL;
2672 unsigned long size;
2673
2674 unsigned int raw_size;
2675 if (obj_raw_syments(abfd) != (combined_entry_type *)NULL) {
2676 return obj_raw_syments(abfd);
2677 }
2678 if ((size = bfd_get_symcount(abfd) * sizeof(combined_entry_type)) == 0) {
2679 bfd_error = no_symbols;
2680 return (NULL);
2681 }
2682
2683 internal = (combined_entry_type *)bfd_alloc(abfd, size);
2684 internal_end = internal + bfd_get_symcount(abfd);
2685
2686 raw_size = bfd_get_symcount(abfd) * SYMESZ;
2687 raw = (SYMENT *)bfd_alloc(abfd,raw_size);
2688
2689 if (bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET) == -1
2690 || bfd_read((PTR)raw, raw_size, 1, abfd) != raw_size) {
2691 bfd_error = system_call_error;
2692 return (NULL);
2693 }
2694 /* mark the end of the symbols */
2695 raw_end = raw + bfd_get_symcount(abfd);
2696 /*
2697 FIXME SOMEDAY. A string table size of zero is very weird, but
2698 probably possible. If one shows up, it will probably kill us.
2699 */
2700
2701 /* Swap all the raw entries */
2702 for (raw_src = raw, internal_ptr = internal;
2703 raw_src < raw_end;
2704 raw_src++, internal_ptr++) {
2705
2706 unsigned int i;
2707 coff_swap_sym_in(abfd, (char *)raw_src, (char *)&internal_ptr->u.syment);
2708 internal_ptr->fix_tag = 0;
2709 internal_ptr->fix_end = 0;
2710 symbol_ptr = internal_ptr;
2711
2712 for (i = 0;
2713 i < symbol_ptr->u.syment.n_numaux;
2714 i++)
2715 {
2716 internal_ptr++;
2717 raw_src++;
2718
2719 internal_ptr->fix_tag = 0;
2720 internal_ptr->fix_end = 0;
2721 coff_swap_aux_in(abfd, (char *)(raw_src),
2722 symbol_ptr->u.syment.n_type,
2723 symbol_ptr->u.syment.n_sclass,
2724 &(internal_ptr->u.auxent));
2725
2726 coff_pointerize_aux(abfd,
2727 internal,
2728 symbol_ptr->u.syment.n_type,
2729 symbol_ptr->u.syment.n_sclass,
2730 internal_ptr);
2731 }
2732 }
2733
2734 /* Free all the raw stuff */
2735 bfd_release(abfd, raw);
2736
2737 for (internal_ptr = internal; internal_ptr < internal_end;
2738 internal_ptr ++)
2739 {
2740 if (internal_ptr->u.syment.n_sclass == C_FILE) {
2741 /* make a file symbol point to the name in the auxent, since
2742 the text ".file" is redundant */
2743 if ((internal_ptr+1)->u.auxent.x_file.x_n.x_zeroes == 0) {
2744 /* the filename is a long one, point into the string table */
2745 if (string_table == NULL) {
2746 string_table = build_string_table(abfd);
2747 }
2748
2749 internal_ptr->u.syment._n._n_n._n_offset =
2750 (int) (string_table - 4 +
2751 (internal_ptr+1)->u.auxent.x_file.x_n.x_offset);
2752 }
2753 else {
2754 /* ordinary short filename, put into memory anyway */
2755 internal_ptr->u.syment._n._n_n._n_offset = (int)
2756 copy_name(abfd, (internal_ptr+1)->u.auxent.x_file.x_fname,
2757 FILNMLEN);
2758 }
2759 }
2760 else {
2761 if (internal_ptr->u.syment._n._n_n._n_zeroes != 0) {
2762 /* This is a "short" name. Make it long. */
2763 unsigned long i = 0;
2764 char *newstring = NULL;
2765
2766 /* find the length of this string without walking into memory
2767 that isn't ours. */
2768 for (i = 0; i < 8; ++i) {
2769 if (internal_ptr->u.syment._n._n_name[i] == '\0') {
2770 break;
2771 } /* if end of string */
2772 } /* possible lengths of this string. */
2773
2774 if ((newstring = (PTR) bfd_alloc(abfd, ++i)) == NULL) {
2775 bfd_error = no_memory;
2776 return (NULL);
2777 } /* on error */
2778 bzero(newstring, i);
2779 strncpy(newstring, internal_ptr->u.syment._n._n_name, i-1);
2780 internal_ptr->u.syment._n._n_n._n_offset = (int) newstring;
2781 internal_ptr->u.syment._n._n_n._n_zeroes = 0;
2782 }
2783 else if (!SYMNAME_IN_DEBUG(&internal_ptr->u.syment)) {
2784 /* Long name already. Point symbol at the string in the table. */
2785 if (string_table == NULL) {
2786 string_table = build_string_table(abfd);
2787 }
2788 internal_ptr->u.syment._n._n_n._n_offset = (int)
2789 (string_table - 4 + internal_ptr->u.syment._n._n_n._n_offset);
2790 }
2791 else {
2792 /* Long name in debug section. Very similar. */
2793 if (debug_section == NULL) {
2794 debug_section = build_debug_section(abfd);
2795 }
2796 internal_ptr->u.syment._n._n_n._n_offset = (int)
2797 (debug_section + internal_ptr->u.syment._n._n_n._n_offset);
2798 }
2799 }
2800 internal_ptr += internal_ptr->u.syment.n_numaux;
2801 }
2802
2803 obj_raw_syments(abfd) = internal;
2804
2805 return (internal);
2806 } /* get_normalized_symtab() */
2807
2808 #endif /* NO_COFF_SYMBOLS */
2809
2810 static
2811 struct sec *
2812 DEFUN(section_from_bfd_index,(abfd, index),
2813 bfd *abfd AND
2814 int index)
2815 {
2816 struct sec *answer = abfd->sections;
2817
2818 if (index == N_ABS)
2819 {
2820 return &bfd_abs_section;
2821 }
2822 if (index == N_UNDEF)
2823 {
2824 return &bfd_und_section;
2825 }
2826 if(index == N_DEBUG)
2827 {
2828 return &bfd_debug_section;
2829
2830 }
2831
2832 while (answer) {
2833 if (answer->target_index == index)
2834 return answer;
2835 answer = answer->next;
2836 }
2837 BFD_ASSERT(0);
2838 }
2839
2840 #ifndef NO_COFF_LINENOS
2841
2842 /*
2843 SUBSUBSECTION
2844 Reading Linenumbers
2845
2846 Creating the linenumber table is done by reading in the entire
2847 coff linenumber table, and creating another table for internal use.
2848
2849 A coff line number table is structured so that each function
2850 is marked as having a line number of 0. Each line within the
2851 function is an offset from the first line in the function. The
2852 base of the line number information for the table is stored in
2853 the symbol associated with the function.
2854
2855 The information is copied from the external to the internal
2856 table, and each symbol which marks a function is marked by
2857 pointing its...
2858
2859 How does this work ?
2860
2861 */
2862
2863 static boolean
2864 coff_slurp_line_table(abfd, asect)
2865 bfd *abfd;
2866 asection *asect;
2867 {
2868 LINENO *native_lineno;
2869 alent *lineno_cache;
2870
2871 BFD_ASSERT(asect->lineno == (alent *) NULL);
2872
2873 native_lineno = (LINENO *) buy_and_read(abfd,
2874 asect->line_filepos,
2875 SEEK_SET,
2876 (size_t) (LINESZ *
2877 asect->lineno_count));
2878 lineno_cache =
2879 (alent *) bfd_alloc(abfd, (size_t) ((asect->lineno_count + 1) * sizeof(alent)));
2880 if (lineno_cache == NULL) {
2881 bfd_error = no_memory;
2882 return false;
2883 } else {
2884 unsigned int counter = 0;
2885 alent *cache_ptr = lineno_cache;
2886 LINENO *src = native_lineno;
2887
2888 while (counter < asect->lineno_count) {
2889 struct internal_lineno dst;
2890 coff_swap_lineno_in(abfd, src, &dst);
2891 cache_ptr->line_number = dst.l_lnno;
2892
2893 if (cache_ptr->line_number == 0) {
2894 coff_symbol_type *sym =
2895 (coff_symbol_type *) (dst.l_addr.l_symndx
2896 + obj_raw_syments(abfd))->u.syment._n._n_n._n_zeroes;
2897 cache_ptr->u.sym = (asymbol *) sym;
2898 sym->lineno = cache_ptr;
2899 }
2900 else {
2901 cache_ptr->u.offset = dst.l_addr.l_paddr
2902 - bfd_section_vma(abfd, asect);
2903 } /* If no linenumber expect a symbol index */
2904
2905 cache_ptr++;
2906 src++;
2907 counter++;
2908 }
2909 cache_ptr->line_number = 0;
2910
2911 }
2912 asect->lineno = lineno_cache;
2913 /* FIXME, free native_lineno here, or use alloca or something. */
2914 return true;
2915 } /* coff_slurp_line_table() */
2916
2917 #endif /* NO_COFF_LINENOS */
2918
2919 #ifndef NO_COFF_LINENOS
2920
2921 static boolean
2922 DEFUN(coff_slurp_symbol_table,(abfd),
2923 bfd *abfd)
2924 {
2925 combined_entry_type *native_symbols;
2926 coff_symbol_type *cached_area;
2927 unsigned int *table_ptr;
2928
2929 unsigned int number_of_symbols = 0;
2930 if (obj_symbols(abfd))
2931 return true;
2932 bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET);
2933
2934 /* Read in the symbol table */
2935 if ((native_symbols = get_normalized_symtab(abfd)) == NULL) {
2936 return (false);
2937 } /* on error */
2938
2939 /* Allocate enough room for all the symbols in cached form */
2940 cached_area =
2941 (coff_symbol_type *)
2942 bfd_alloc(abfd, (size_t) (bfd_get_symcount(abfd) * sizeof(coff_symbol_type)));
2943
2944 if (cached_area == NULL) {
2945 bfd_error = no_memory;
2946 return false;
2947 } /* on error */
2948 table_ptr =
2949 (unsigned int *)
2950 bfd_alloc(abfd, (size_t) (bfd_get_symcount(abfd) * sizeof(unsigned int)));
2951
2952 if (table_ptr == NULL) {
2953 bfd_error = no_memory;
2954 return false;
2955 }
2956 else
2957 {
2958 coff_symbol_type *dst = cached_area;
2959 unsigned int last_native_index = bfd_get_symcount(abfd);
2960 unsigned int this_index = 0;
2961 while (this_index < last_native_index) {
2962 combined_entry_type *src = native_symbols + this_index;
2963 table_ptr[this_index] = number_of_symbols;
2964 dst->symbol.the_bfd = abfd;
2965
2966 dst->symbol.name = (char *)(src->u.syment._n._n_n._n_offset);
2967 /*
2968 We use the native name field to point to the cached field
2969 */
2970 src->u.syment._n._n_n._n_zeroes = (int) dst;
2971 dst->symbol.section = section_from_bfd_index(abfd,
2972 src->u.syment.n_scnum);
2973 switch (src->u.syment.n_sclass) {
2974 #ifdef I960
2975 case C_LEAFEXT:
2976 #if 0
2977 dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma;
2978 dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
2979 dst->symbol.flags |= BSF_NOT_AT_END;
2980 #endif
2981 /* Fall through to next case */
2982
2983 #endif
2984
2985 case C_EXT:
2986 #ifdef RS6000COFF_C
2987 case C_HIDEXT:
2988 #endif
2989 if ((src->u.syment.n_scnum) == 0) {
2990 if ((src->u.syment.n_value) == 0) {
2991 dst->symbol.section = &bfd_und_section;
2992 dst->symbol.value= 0;
2993 }
2994 else {
2995 dst->symbol.section = &bfd_com_section;
2996 dst->symbol.value = (src->u.syment.n_value);
2997 }
2998 }
2999 else {
3000 /*
3001 Base the value as an index from the base of the
3002 section
3003 */
3004
3005 dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
3006 dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma;
3007
3008 if (ISFCN((src->u.syment.n_type))) {
3009 /*
3010 A function ext does not go at the end of a file
3011 */
3012 dst->symbol.flags |= BSF_NOT_AT_END;
3013 }
3014 }
3015
3016
3017 break;
3018
3019 case C_STAT: /* static */
3020 #ifdef I960
3021 case C_LEAFSTAT: /* static leaf procedure */
3022 #endif
3023 case C_LABEL: /* label */
3024 if (src->u.syment.n_scnum == -2)
3025 dst->symbol.flags = BSF_DEBUGGING;
3026 else
3027 dst->symbol.flags = BSF_LOCAL;
3028 /*
3029 Base the value as an index from the base of the section, if
3030 there is one
3031 */
3032 if (dst->symbol.section)
3033 dst->symbol.value = (src->u.syment.n_value) -
3034 dst->symbol.section->vma;
3035 else
3036 dst->symbol.value = (src->u.syment.n_value) ;
3037 break;
3038
3039 case C_MOS: /* member of structure */
3040 case C_EOS: /* end of structure */
3041 #ifdef NOTDEF /* C_AUTOARG has the same value */
3042 #ifdef C_GLBLREG
3043 case C_GLBLREG: /* A29k-specific storage class */
3044 #endif
3045 #endif
3046 case C_REGPARM: /* register parameter */
3047 case C_REG: /* register variable */
3048 #ifdef C_AUTOARG
3049 case C_AUTOARG: /* 960-specific storage class */
3050 #endif
3051 case C_TPDEF: /* type definition */
3052 case C_ARG:
3053 case C_AUTO: /* automatic variable */
3054 case C_FIELD: /* bit field */
3055 case C_ENTAG: /* enumeration tag */
3056 case C_MOE: /* member of enumeration */
3057 case C_MOU: /* member of union */
3058 case C_UNTAG: /* union tag */
3059 dst->symbol.flags = BSF_DEBUGGING;
3060 dst->symbol.value = (src->u.syment.n_value);
3061 break;
3062
3063 case C_FILE: /* file name */
3064 case C_STRTAG: /* structure tag */
3065 #ifdef RS6000COFF_C
3066 case C_BINCL: /* beginning of include file */
3067 case C_EINCL: /* ending of include file */
3068 case C_GSYM:
3069 case C_LSYM:
3070 case C_PSYM:
3071 case C_RSYM:
3072 case C_RPSYM:
3073 case C_STSYM:
3074 case C_DECL:
3075 case C_ENTRY:
3076 case C_FUN:
3077 case C_BSTAT:
3078 case C_ESTAT:
3079 #endif
3080 dst->symbol.flags = BSF_DEBUGGING;
3081 dst->symbol.value = (src->u.syment.n_value);
3082 break;
3083
3084 case C_BLOCK: /* ".bb" or ".eb" */
3085 case C_FCN: /* ".bf" or ".ef" */
3086 case C_EFCN: /* physical end of function */
3087 dst->symbol.flags = BSF_LOCAL;
3088 /*
3089 Base the value as an index from the base of the section
3090 */
3091 dst->symbol.value = (src->u.syment.n_value) - dst->symbol.section->vma;
3092 break;
3093
3094 case C_NULL:
3095 case C_EXTDEF: /* external definition */
3096 case C_ULABEL: /* undefined label */
3097 case C_USTATIC: /* undefined static */
3098 case C_LINE: /* line # reformatted as symbol table entry */
3099 case C_ALIAS: /* duplicate tag */
3100 case C_HIDDEN: /* ext symbol in dmert public lib */
3101 default:
3102
3103 fprintf(stderr,"Unrecognized storage class %d\n",
3104 src->u.syment.n_sclass);
3105 abort();
3106 dst->symbol.flags = BSF_DEBUGGING;
3107 dst->symbol.value = (src->u.syment.n_value);
3108 break;
3109 }
3110
3111 /* BFD_ASSERT(dst->symbol.flags != 0);*/
3112
3113 dst->native = src;
3114
3115 dst->symbol.udata = 0;
3116 dst->lineno = (alent *) NULL;
3117 this_index += (src->u.syment.n_numaux) + 1;
3118 dst++;
3119 number_of_symbols++;
3120 } /* walk the native symtab */
3121 } /* bfdize the native symtab */
3122
3123 obj_symbols(abfd) = cached_area;
3124 obj_raw_syments(abfd) = native_symbols;
3125
3126 bfd_get_symcount(abfd) = number_of_symbols;
3127 obj_convert(abfd) = table_ptr;
3128 /* Slurp the line tables for each section too */
3129 {
3130 asection *p;
3131 p = abfd->sections;
3132 while (p) {
3133 coff_slurp_line_table(abfd, p);
3134 p = p->next;
3135 }
3136 }
3137 return true;
3138 } /* coff_slurp_symbol_table() */
3139
3140 static unsigned int
3141 coff_get_symtab_upper_bound(abfd)
3142 bfd *abfd;
3143 {
3144 if (!coff_slurp_symbol_table(abfd))
3145 return 0;
3146
3147 return (bfd_get_symcount(abfd) + 1) * (sizeof(coff_symbol_type *));
3148 }
3149
3150
3151 static unsigned int
3152 DEFUN(coff_get_symtab, (abfd, alocation),
3153 bfd *abfd AND
3154 asymbol **alocation)
3155 {
3156 unsigned int counter = 0;
3157 coff_symbol_type *symbase;
3158 coff_symbol_type **location = (coff_symbol_type **) (alocation);
3159 if (!coff_slurp_symbol_table(abfd))
3160 return 0;
3161
3162 symbase = obj_symbols(abfd);
3163 while (counter < bfd_get_symcount(abfd))
3164 {
3165 /* This nasty code looks at the symbol to decide whether or
3166 not it is descibes a constructor/destructor entry point. It
3167 is structured this way to (hopefully) speed non matches */
3168 #if 0
3169 if (0 && symbase->symbol.name[9] == '$')
3170 {
3171 bfd_constructor_entry(abfd,
3172 (asymbol **)location,
3173 symbase->symbol.name[10] == 'I' ?
3174 "CTOR" : "DTOR");
3175 }
3176 #endif
3177 *(location++) = symbase++;
3178 counter++;
3179 }
3180 *location++ = 0;
3181 return bfd_get_symcount(abfd);
3182 }
3183
3184 #endif /* NO_COFF_SYMBOLS */
3185
3186 static unsigned int
3187 coff_get_reloc_upper_bound(abfd, asect)
3188 bfd *abfd;
3189 sec_ptr asect;
3190 {
3191 if (bfd_get_format(abfd) != bfd_object) {
3192 bfd_error = invalid_operation;
3193 return 0;
3194 }
3195 return (asect->reloc_count + 1) * sizeof(arelent *);
3196 }
3197
3198 /*
3199 SUBSUBSECTION
3200 Reading Relocations
3201
3202 Coff relocations are easily transformed into the internal BFD form
3203 (@code{arelent}).
3204
3205 Reading a coff relocation table is done in the following stages:
3206
3207 o The entire coff relocation table is read into memory.
3208
3209 o Each relocation is processed in turn, first it is swapped from the
3210 external to the internal form.
3211
3212 o The symbol referenced in the relocation's symbol index is
3213 turned intoa pointer into the canonical symbol table. Note
3214 that this table is the same as the one returned by a call to
3215 @code{bfd_canonicalize_symtab}. The back end will call the
3216 routine and save the result if a canonicalization hasn't been done.
3217
3218 o The reloc index is turned into a pointer to a howto
3219 structure, in a back end specific way. For instance, the 386
3220 and 960 use the @code{r_type} to directly produce an index
3221 into a howto table vector; the 88k subtracts a number from the
3222 @code{r_type} field and creates an addend field.
3223
3224
3225 */
3226
3227 #ifndef CALC_ADDEND
3228 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
3229 if (ptr && ptr->the_bfd == abfd \
3230 && ptr->section != (asection *) NULL \
3231 && ((ptr->flags & BSF_OLD_COMMON)== 0)) \
3232 { \
3233 cache_ptr->addend = -(ptr->section->vma + ptr->value); \
3234 } \
3235 else { \
3236 cache_ptr->addend = 0; \
3237 }
3238 #endif
3239
3240 static boolean
3241 DEFUN(coff_slurp_reloc_table,(abfd, asect, symbols),
3242 bfd *abfd AND
3243 sec_ptr asect AND
3244 asymbol **symbols)
3245 {
3246 RELOC *native_relocs;
3247 arelent *reloc_cache;
3248 arelent *cache_ptr;
3249
3250 unsigned int idx;
3251
3252 if (asect->relocation)
3253 return true;
3254 if (asect->reloc_count == 0)
3255 return true;
3256 if (asect->flags & SEC_CONSTRUCTOR)
3257 return true;
3258 #ifndef NO_COFF_SYMBOLS
3259 if (!coff_slurp_symbol_table(abfd))
3260 return false;
3261 #endif
3262 native_relocs =
3263 (RELOC *) buy_and_read(abfd,
3264 asect->rel_filepos,
3265 SEEK_SET,
3266 (size_t) (RELSZ *
3267 asect->reloc_count));
3268 reloc_cache = (arelent *)
3269 bfd_alloc(abfd, (size_t) (asect->reloc_count * sizeof(arelent)));
3270
3271 if (reloc_cache == NULL) {
3272 bfd_error = no_memory;
3273 return false;
3274 }
3275
3276
3277 for (idx = 0; idx < asect->reloc_count; idx ++)
3278 {
3279 #ifdef RELOC_PROCESSING
3280 struct internal_reloc dst;
3281 struct external_reloc *src;
3282
3283 cache_ptr = reloc_cache + idx;
3284 src = native_relocs + idx;
3285 bfd_swap_reloc_in(abfd, src, &dst);
3286
3287 RELOC_PROCESSING(cache_ptr, &dst, symbols, abfd, asect);
3288 #else
3289 struct internal_reloc dst;
3290 asymbol *ptr;
3291 struct external_reloc *src;
3292
3293 cache_ptr = reloc_cache + idx;
3294 src = native_relocs + idx;
3295
3296 bfd_swap_reloc_in(abfd, src, &dst);
3297
3298
3299 cache_ptr->address = dst.r_vaddr;
3300
3301 if (dst.r_symndx != -1)
3302 {
3303 cache_ptr->sym_ptr_ptr = symbols + obj_convert(abfd)[dst.r_symndx];
3304 ptr = *(cache_ptr->sym_ptr_ptr);
3305 }
3306 else
3307 {
3308 cache_ptr->sym_ptr_ptr = 0;
3309 ptr = 0;
3310
3311 }
3312
3313 /*
3314 The symbols definitions that we have read in have been
3315 relocated as if their sections started at 0. But the offsets
3316 refering to the symbols in the raw data have not been
3317 modified, so we have to have a negative addend to compensate.
3318
3319 Note that symbols which used to be common must be left alone */
3320
3321 /* Calculate any reloc addend by looking at the symbol */
3322 CALC_ADDEND(abfd, ptr, dst, cache_ptr);
3323
3324 cache_ptr->address -= asect->vma;
3325 /* !! cache_ptr->section = (asection *) NULL;*/
3326
3327 /* Fill in the cache_ptr->howto field from dst.r_type */
3328 RTYPE2HOWTO(cache_ptr, &dst);
3329 #endif
3330
3331 }
3332
3333 asect->relocation = reloc_cache;
3334 return true;
3335 }
3336
3337
3338 /* This is stupid. This function should be a boolean predicate */
3339 static unsigned int
3340 DEFUN(coff_canonicalize_reloc, (abfd, section, relptr, symbols),
3341 bfd *abfd AND
3342 sec_ptr section AND
3343 arelent **relptr AND
3344 asymbol **symbols)
3345 {
3346 arelent *tblptr = section->relocation;
3347 unsigned int count = 0;
3348
3349
3350 if (section->flags & SEC_CONSTRUCTOR)
3351 {
3352 /* this section has relocs made up by us, they are not in the
3353 file, so take them out of their chain and place them into
3354 the data area provided */
3355 arelent_chain *chain = section->constructor_chain;
3356 for (count = 0; count < section->reloc_count; count ++)
3357 {
3358 *relptr ++ = &chain->relent;
3359 chain = chain->next;
3360 }
3361
3362 }
3363 else
3364 {
3365 coff_slurp_reloc_table(abfd, section, symbols);
3366
3367
3368 tblptr = section->relocation;
3369 if (!tblptr)
3370 return 0;
3371
3372 for (; count++ < section->reloc_count;)
3373 *relptr++ = tblptr++;
3374
3375
3376 }
3377 *relptr = 0;
3378 return section->reloc_count;
3379 }
3380
3381 #ifndef NO_COFF_SYMBOLS
3382
3383 /*
3384 provided a BFD, a section and an offset into the section, calculate and
3385 return the name of the source file and the line nearest to the wanted
3386 location.
3387 */
3388
3389 static boolean
3390 DEFUN(coff_find_nearest_line,(abfd,
3391 section,
3392 ignore_symbols,
3393 offset,
3394 filename_ptr,
3395 functionname_ptr,
3396 line_ptr),
3397 bfd *abfd AND
3398 asection *section AND
3399 asymbol **ignore_symbols AND
3400 bfd_vma offset AND
3401 CONST char **filename_ptr AND
3402 CONST char **functionname_ptr AND
3403 unsigned int *line_ptr)
3404 {
3405 static bfd *cache_abfd;
3406 static asection *cache_section;
3407 static bfd_vma cache_offset;
3408 static unsigned int cache_i;
3409 static alent *cache_l;
3410
3411 unsigned int i = 0;
3412 coff_data_type *cof = coff_data(abfd);
3413 /* Run through the raw syments if available */
3414 combined_entry_type *p;
3415 alent *l;
3416 unsigned int line_base = 0;
3417
3418
3419 *filename_ptr = 0;
3420 *functionname_ptr = 0;
3421 *line_ptr = 0;
3422
3423 /* Don't try and find line numbers in a non coff file */
3424 if (abfd->xvec->flavour != bfd_target_coff_flavour)
3425 return false;
3426
3427 if (cof == NULL)
3428 return false;
3429
3430 p = cof->raw_syments;
3431
3432 for (i = 0; i < cof->raw_syment_count; i++) {
3433 if (p->u.syment.n_sclass == C_FILE) {
3434 /* File name has been moved into symbol */
3435 *filename_ptr = (char *) p->u.syment._n._n_n._n_offset;
3436 break;
3437 }
3438 p += 1 + p->u.syment.n_numaux;
3439 }
3440 /* Now wander though the raw linenumbers of the section */
3441 /*
3442 If this is the same BFD as we were previously called with and this is
3443 the same section, and the offset we want is further down then we can
3444 prime the lookup loop
3445 */
3446 if (abfd == cache_abfd &&
3447 section == cache_section &&
3448 offset >= cache_offset) {
3449 i = cache_i;
3450 l = cache_l;
3451 }
3452 else {
3453 i = 0;
3454 l = section->lineno;
3455 }
3456
3457 for (; i < section->lineno_count; i++) {
3458 if (l->line_number == 0) {
3459 /* Get the symbol this line number points at */
3460 coff_symbol_type *coff = (coff_symbol_type *) (l->u.sym);
3461 *functionname_ptr = coff->symbol.name;
3462 if (coff->native) {
3463 combined_entry_type *s = coff->native;
3464 s = s + 1 + s->u.syment.n_numaux;
3465 /*
3466 S should now point to the .bf of the function
3467 */
3468 if (s->u.syment.n_numaux) {
3469 /*
3470 The linenumber is stored in the auxent
3471 */
3472 union internal_auxent *a = &((s + 1)->u.auxent);
3473 line_base = a->x_sym.x_misc.x_lnsz.x_lnno;
3474 }
3475 }
3476 }
3477 else {
3478 if (l->u.offset > offset)
3479 break;
3480 *line_ptr = l->line_number + line_base + 1;
3481 }
3482 l++;
3483 }
3484
3485 cache_abfd = abfd;
3486 cache_section = section;
3487 cache_offset = offset;
3488 cache_i = i;
3489 cache_l = l;
3490
3491 return true;
3492 }
3493
3494 #ifdef GNU960
3495 file_ptr
3496 coff_sym_filepos(abfd)
3497 bfd *abfd;
3498 {
3499 return obj_sym_filepos(abfd);
3500 }
3501 #endif
3502
3503 #endif /* NO_COFF_SYMBOLS */
3504
3505
3506 static int
3507 DEFUN(coff_sizeof_headers,(abfd, reloc),
3508 bfd *abfd AND
3509 boolean reloc)
3510 {
3511 size_t size;
3512
3513 if (reloc == false) {
3514 size = FILHSZ + AOUTSZ;
3515 }
3516 else {
3517 size = FILHSZ;
3518 }
3519
3520 size += abfd->section_count * SCNHSZ;
3521 return size;
3522 }
3523
3524 static bfd_vma
3525 DEFUN(get_value,(reloc, seclet),
3526 arelent *reloc AND
3527 bfd_seclet_type *seclet)
3528 {
3529 bfd_vma value;
3530 asymbol *symbol = *(reloc->sym_ptr_ptr);
3531 /* A symbol holds a pointer to a section, and an offset from the
3532 base of the section. To relocate, we find where the section will
3533 live in the output and add that in */
3534
3535 if (symbol->section == &bfd_und_section)
3536 {
3537 /* Ouch, this is an undefined symbol.. */
3538 bfd_error_vector.undefined_symbol(reloc, seclet);
3539 value = symbol->value;
3540 }
3541 else
3542 {
3543 value = symbol->value +
3544 symbol->section->output_offset +
3545 symbol->section->output_section->vma;
3546 }
3547
3548
3549 /* Add the value contained in the relocation */
3550 value += (short)((reloc->addend) & 0xffff);
3551
3552 return value;
3553 }
3554
3555 static void
3556 DEFUN(perform_slip,(s, slip, input_section, value),
3557 asymbol **s AND
3558 unsigned int slip AND
3559 asection *input_section AND
3560 bfd_vma value)
3561 {
3562
3563 /* Find all symbols past this point, and make them know
3564 what's happened */
3565 while (*s)
3566 {
3567 asymbol *p = *s;
3568 if (p->section == input_section)
3569 {
3570 /* This was pointing into this section, so mangle it */
3571 if (p->value > value)
3572 {
3573 p->value -=2;
3574 }
3575 }
3576 s++;
3577
3578 }
3579 }
3580 static int
3581 DEFUN(movb1,(input_section, symbols, r, shrink),
3582 asection *input_section AND
3583 asymbol **symbols AND
3584 arelent *r AND
3585 unsigned int shrink)
3586 {
3587 bfd_vma value = get_value(r,0);
3588
3589 if (value >= 0xff00)
3590 {
3591
3592 /* Change the reloc type from 16bit, possible 8 to 8bit
3593 possible 16 */
3594 r->howto = r->howto + 1;
3595 /* The place to relc moves back by one */
3596 r->address -=1;
3597
3598 /* This will be two bytes smaller in the long run */
3599 shrink +=2 ;
3600 perform_slip(symbols, 2, input_section, r->address - shrink +1);
3601
3602
3603 }
3604 return shrink;
3605 }
3606
3607 static int
3608 DEFUN(jmp1,(input_section, symbols, r, shrink),
3609 asection *input_section AND
3610 asymbol **symbols AND
3611 arelent *r AND
3612 unsigned int shrink)
3613 {
3614
3615
3616 bfd_vma value = get_value(r, 0);
3617
3618 bfd_vma dot = input_section->output_section->vma +
3619 input_section->output_offset + r->address;
3620 bfd_vma gap;
3621
3622 /* See if the address we're looking at within 127 bytes of where
3623 we are, if so then we can use a small branch rather than the
3624 jump we were going to */
3625
3626 gap = value - (dot - shrink);
3627
3628
3629 if (-120 < (long)gap && (long)gap < 120 )
3630 {
3631
3632 /* Change the reloc type from 16bit, possible 8 to 8bit
3633 possible 16 */
3634 r->howto = r->howto + 1;
3635 /* The place to relc moves back by one */
3636 r->address -=1;
3637
3638 /* This will be two bytes smaller in the long run */
3639 shrink +=2 ;
3640 perform_slip(symbols, 2, input_section, r->address-shrink +1);
3641
3642
3643 }
3644 return shrink;
3645 }
3646
3647 static boolean
3648 DEFUN(bfd_coff_relax_section,(abfd, i, symbols),
3649 bfd *abfd AND
3650 asection *i AND
3651 asymbol **symbols)
3652 {
3653
3654 /* Get enough memory to hold the stuff */
3655 bfd *input_bfd = i->owner;
3656 asection *input_section = i;
3657 int shrink = 0 ;
3658 boolean new = false;
3659
3660 bfd_size_type reloc_size = bfd_get_reloc_upper_bound(input_bfd,
3661 input_section);
3662 arelent **reloc_vector = (arelent **)bfd_xmalloc(reloc_size);
3663
3664 /* Get the relocs and think about them */
3665 if (bfd_canonicalize_reloc(input_bfd,
3666 input_section,
3667 reloc_vector,
3668 symbols))
3669 {
3670 arelent **parent;
3671 for (parent = reloc_vector; *parent; parent++)
3672 {
3673 arelent *r = *parent;
3674 switch (r->howto->type) {
3675 case R_MOVB2:
3676 case R_JMP2:
3677
3678 shrink+=2;
3679 break;
3680
3681 case R_MOVB1:
3682 shrink = movb1(input_section, symbols, r, shrink);
3683 new = true;
3684
3685 break;
3686 case R_JMP1:
3687 shrink = jmp1(input_section, symbols, r, shrink);
3688 new = true;
3689
3690 break;
3691 }
3692 }
3693
3694 }
3695 input_section->_cooked_size -= shrink;
3696 free((char *)reloc_vector);
3697 return new;
3698 }
3699
3700 static bfd_byte *
3701 DEFUN(bfd_coff_get_relocated_section_contents,(in_abfd, seclet),
3702 bfd *in_abfd AND
3703 bfd_seclet_type *seclet)
3704
3705 {
3706 asymbol **symbols = 0;
3707 extern bfd *output_bfd;
3708
3709 /* Get enough memory to hold the stuff */
3710 bfd *input_bfd = seclet->u.indirect.section->owner;
3711 asection *input_section = seclet->u.indirect.section;
3712
3713 bfd_byte *data = (bfd_byte *)malloc(input_section->_raw_size);
3714 bfd_byte *dst = data;
3715 bfd_byte *prev_dst = data;
3716
3717 unsigned int gap = 0;
3718
3719 bfd_size_type reloc_size = bfd_get_reloc_upper_bound(input_bfd,
3720 input_section);
3721 arelent **reloc_vector = (arelent **)bfd_xmalloc(reloc_size);
3722
3723 /* read in the section */
3724 bfd_get_section_contents(input_bfd,
3725 input_section,
3726 data,
3727 0,
3728 input_section->_raw_size);
3729
3730
3731 if (bfd_canonicalize_reloc(input_bfd,
3732 input_section,
3733 reloc_vector,
3734 seclet->u.indirect.symbols) )
3735 {
3736 arelent **parent = reloc_vector;
3737 arelent *reloc ;
3738
3739
3740
3741 unsigned int dst_address = 0;
3742 unsigned int src_address = 0;
3743 unsigned int run;
3744 unsigned int idx;
3745
3746 /* Find how long a run we can do */
3747 while (dst_address < seclet->size)
3748 {
3749
3750 reloc = *parent;
3751 if (reloc)
3752 {
3753 /* Note that the relaxing didn't tie up the addresses in the
3754 relocation, so we use the original address to work out the
3755 run of non-relocated data */
3756 run = reloc->address - src_address;
3757 parent++;
3758
3759 }
3760 else
3761 {
3762 run = seclet->size - dst_address;
3763 }
3764 /* Copy the bytes */
3765 for (idx = 0; idx < run; idx++)
3766 {
3767 data[dst_address++] = data[src_address++];
3768 }
3769
3770 /* Now do the relocation */
3771
3772 if (reloc)
3773 {
3774 switch (reloc->howto->type)
3775 {
3776 case R_JMP2:
3777 /* Speciial relaxed type */
3778 {
3779 bfd_vma dot = seclet->offset + dst_address + seclet->u.indirect.section->output_section->vma;
3780 int gap = get_value(reloc,seclet)-dot-1;
3781 if ((gap & ~0xff ) != 0 &&((gap & 0xff00)!= 0xff00)) abort();
3782
3783 bfd_put_8(in_abfd,gap, data+dst_address);
3784
3785 switch (data[dst_address-1])
3786 {
3787
3788 case 0x5e:
3789 /* jsr -> bsr */
3790 bfd_put_8(in_abfd, 0x55, data+dst_address-1);
3791 break;
3792 case 0x5a:
3793 /* jmp ->bra */
3794 bfd_put_8(in_abfd, 0x40, data+dst_address-1);
3795 break;
3796
3797 default:
3798 abort();
3799
3800 }
3801
3802
3803
3804
3805 dst_address++;
3806 src_address+=3;
3807
3808 break;
3809 }
3810
3811
3812 case R_MOVB2:
3813 /* Special relaxed type, there will be a gap between where we
3814 get stuff from and where we put stuff to now
3815
3816 for a mov.b @aa:16 -> mov.b @aa:8
3817 opcode 0x6a 0x0y offset
3818 -> 0x2y off
3819 */
3820 if (data[dst_address-1] != 0x6a)
3821 abort();
3822 switch (data[dst_address] & 0xf0)
3823 {
3824 case 0x00:
3825 /* Src is memory */
3826 data[dst_address-1] = (data[src_address] & 0xf) | 0x20;
3827 break;
3828 case 0x80:
3829 /* Src is reg */
3830 data[dst_address-1] = (data[src_address] & 0xf) | 0x30;
3831 break;
3832 default:
3833 abort();
3834 }
3835
3836 /* the offset must fit ! after all, what was all the relaxing
3837 about ? */
3838
3839 bfd_put_8(in_abfd, get_value(reloc, seclet), data + dst_address);
3840
3841 /* Note the magic - src goes up by two bytes, but dst by only
3842 one */
3843 dst_address+=1;
3844 src_address+=3;
3845
3846 break;
3847 /* PCrel 8 bits */
3848 case R_PCRBYTE:
3849 {
3850 bfd_vma dot = seclet->offset + dst_address + seclet->u.indirect.section->output_section->vma;
3851 int gap = get_value(reloc,seclet)-dot;
3852 if (gap > 127 || gap < -128)
3853 {
3854 bfd_error_vector.reloc_value_truncated(reloc, seclet);
3855 }
3856
3857 bfd_put_8(in_abfd,gap, data+dst_address);
3858 dst_address++;
3859 src_address++;
3860
3861 break;
3862 }
3863
3864 case R_RELBYTE:
3865 {
3866 unsigned int gap =get_value(reloc,seclet);
3867 if (gap > 256)
3868 {
3869 bfd_error_vector.reloc_value_truncated(reloc, seclet);
3870 }
3871
3872 bfd_put_8(in_abfd, gap, data+dst_address);
3873 dst_address+=1;
3874 src_address+=1;
3875
3876
3877 }
3878 break;
3879 case R_JMP1:
3880 /* A relword which would have like to have been a pcrel */
3881 case R_MOVB1:
3882 /* A relword which would like to have been modified but
3883 didn't make it */
3884 case R_RELWORD:
3885 bfd_put_16(in_abfd, get_value(reloc,seclet), data+dst_address);
3886 dst_address+=2;
3887 src_address+=2;
3888 break;
3889
3890 default:
3891 abort();
3892 }
3893 }
3894 }
3895 }
3896 free((char *)reloc_vector);
3897 return data;
3898
3899 }
3900
3901
3902 #define coff_core_file_failing_command _bfd_dummy_core_file_failing_command
3903 #define coff_core_file_failing_signal _bfd_dummy_core_file_failing_signal
3904 #define coff_core_file_matches_executable_p _bfd_dummy_core_file_matches_executable_p
3905 #define coff_slurp_armap bfd_slurp_coff_armap
3906 #define coff_slurp_extended_name_table _bfd_slurp_extended_name_table
3907 #define coff_truncate_arname bfd_dont_truncate_arname
3908 #define coff_openr_next_archived_file bfd_generic_openr_next_archived_file
3909 #define coff_generic_stat_arch_elt bfd_generic_stat_arch_elt
3910 #define coff_get_section_contents bfd_generic_get_section_contents
3911 #define coff_close_and_cleanup bfd_generic_close_and_cleanup
3912
3913 #define coff_bfd_debug_info_start bfd_void
3914 #define coff_bfd_debug_info_end bfd_void
3915 #define coff_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
3916 #define coff_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
3917 #define coff_bfd_relax_section bfd_generic_relax_section
3918
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