* coffcode.h (get_normalized_symtab): fixed bug where symbols
[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, in1),
560 bfd *abfd AND
561 PTR ext1 AND
562 int type AND
563 int class AND
564 PTR in1)
565 {
566 AUXENT *ext = (AUXENT *)ext1;
567 union internal_auxent *in = (union internal_auxent *)in1;
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
611 default:
612 in->x_sym.x_tagndx.l = bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_tagndx);
613 #ifndef NO_TVNDX
614 in->x_sym.x_tvndx = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_tvndx);
615 #endif
616
617 if (ISARY(type) || class == C_BLOCK) {
618 #if DIMNUM != E_DIMNUM
619 -> Error, we need to cope with truncating or extending DIMNUM!;
620 #else
621 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]);
622 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]);
623 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]);
624 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]);
625 #endif
626 }
627 in->x_sym.x_fcnary.x_fcn.x_lnnoptr = GET_FCN_LNNOPTR(abfd, ext);
628 in->x_sym.x_fcnary.x_fcn.x_endndx.l = GET_FCN_ENDNDX(abfd, ext);
629
630 if (ISFCN(type)) {
631 in->x_sym.x_misc.x_fsize = bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_misc.x_fsize);
632 }
633 else {
634 in->x_sym.x_misc.x_lnsz.x_lnno = GET_LNSZ_LNNO(abfd, ext);
635 in->x_sym.x_misc.x_lnsz.x_size = GET_LNSZ_SIZE(abfd, ext);
636 }
637 }
638 }
639
640 static unsigned int
641 DEFUN(coff_swap_aux_out,(abfd, inp, type, class, extp),
642 bfd *abfd AND
643 PTR inp AND
644 int type AND
645 int class AND
646 PTR extp)
647 {
648 union internal_auxent *in = (union internal_auxent *)inp;
649 AUXENT *ext = (AUXENT *)extp;
650 switch (class) {
651 case C_FILE:
652 if (in->x_file.x_fname[0] == 0) {
653 PUTWORD(abfd, 0, (bfd_byte *) ext->x_file.x_n.x_zeroes);
654 PUTWORD(abfd,
655 in->x_file.x_n.x_offset,
656 (bfd_byte *) ext->x_file.x_n.x_offset);
657 }
658 else {
659 #if FILNMLEN != E_FILNMLEN
660 -> Error, we need to cope with truncating or extending FILNMLEN!;
661 #else
662 memcpy (ext->x_file.x_fname, in->x_file.x_fname, FILNMLEN);
663 #endif
664 }
665 break;
666
667 #ifdef RS6000COFF_C
668 /* RS/6000 "csect" auxents */
669 case C_EXT:
670 case C_HIDEXT:
671 PUTWORD (abfd, in->x_csect.x_scnlen, ext->x_csect.x_scnlen);
672 PUTWORD (abfd, in->x_csect.x_parmhash, ext->x_csect.x_parmhash);
673 PUTHALF (abfd, in->x_csect.x_snhash, ext->x_csect.x_snhash);
674 /* We don't have to hack bitfields in x_smtyp because it's defined by
675 shifts-and-ands, which are equivalent on all byte orders. */
676 PUTBYTE (abfd, in->x_csect.x_smtyp, ext->x_csect.x_smtyp);
677 PUTBYTE (abfd, in->x_csect.x_smclas, ext->x_csect.x_smclas);
678 PUTWORD (abfd, in->x_csect.x_stab, ext->x_csect.x_stab);
679 PUTHALF (abfd, in->x_csect.x_snstab, ext->x_csect.x_snstab);
680 break;
681 #endif
682
683 case C_STAT:
684 #ifdef C_LEAFSTAT
685 case C_LEAFSTAT:
686 #endif
687 case C_HIDDEN:
688 if (type == T_NULL) {
689 PUT_SCN_SCNLEN(abfd, in->x_scn.x_scnlen, ext);
690 PUT_SCN_NRELOC(abfd, in->x_scn.x_nreloc, ext);
691 PUT_SCN_NLINNO(abfd, in->x_scn.x_nlinno, ext);
692 break;
693 }
694 default:
695 PUTWORD(abfd, in->x_sym.x_tagndx.l, (bfd_byte *) ext->x_sym.x_tagndx);
696 #ifndef NO_TVNDX
697 PUTWORD(abfd, in->x_sym.x_tvndx , (bfd_byte *) ext->x_sym.x_tvndx);
698 #endif
699
700 if (ISFCN(type)) {
701 PUTWORD(abfd, in->x_sym.x_misc.x_fsize, (bfd_byte *) ext->x_sym.x_misc.x_fsize);
702 PUT_FCN_LNNOPTR(abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr, ext);
703 PUT_FCN_ENDNDX(abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l, ext);
704 }
705 else {
706
707 if (ISARY(type) || class == C_BLOCK) {
708 #if DIMNUM != E_DIMNUM
709 -> Error, we need to cope with truncating or extending DIMNUM!;
710 #else
711 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]);
712 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]);
713 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]);
714 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]);
715 #endif
716 }
717 PUT_LNSZ_LNNO(abfd, in->x_sym.x_misc.x_lnsz.x_lnno, ext);
718 PUT_LNSZ_SIZE(abfd, in->x_sym.x_misc.x_lnsz.x_size, ext);
719
720 PUT_FCN_LNNOPTR(abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr, ext);
721 PUT_FCN_ENDNDX(abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l, ext);
722
723
724 }
725 }
726 return sizeof(AUXENT);
727 }
728
729 #endif /* NO_COFF_SYMBOLS */
730
731 #ifndef NO_COFF_LINENOS
732
733 static void
734 DEFUN(coff_swap_lineno_in,(abfd, ext1, in1),
735 bfd *abfd AND
736 PTR ext1 AND
737 PTR in1)
738 {
739 LINENO *ext = (LINENO *)ext1;
740 struct internal_lineno *in = (struct internal_lineno *)in1;
741
742 in->l_addr.l_symndx = bfd_h_get_32(abfd, (bfd_byte *) ext->l_addr.l_symndx);
743 in->l_lnno = GET_LINENO_LNNO(abfd, ext);
744 }
745
746 static unsigned int
747 DEFUN(coff_swap_lineno_out,(abfd, inp, outp),
748 bfd *abfd AND
749 PTR inp AND
750 PTR outp)
751 {
752 struct internal_lineno *in = (struct internal_lineno *)inp;
753 struct external_lineno *ext = (struct external_lineno *)outp;
754 PUTWORD(abfd, in->l_addr.l_symndx, (bfd_byte *)
755 ext->l_addr.l_symndx);
756
757 PUT_LINENO_LNNO (abfd, in->l_lnno, ext);
758 return sizeof(struct external_lineno);
759 }
760
761 #endif /* NO_COFF_LINENOS */
762
763
764 static void
765 DEFUN(bfd_swap_aouthdr_in,(abfd, aouthdr_ext1, aouthdr_int1),
766 bfd *abfd AND
767 PTR aouthdr_ext1 AND
768 PTR aouthdr_int1)
769 {
770 AOUTHDR *aouthdr_ext = (AOUTHDR *) aouthdr_ext1;
771 struct internal_aouthdr *aouthdr_int = (struct internal_aouthdr *)aouthdr_int1;
772
773 aouthdr_int->magic = bfd_h_get_16(abfd, (bfd_byte *) aouthdr_ext->magic);
774 aouthdr_int->vstamp = bfd_h_get_16(abfd, (bfd_byte *) aouthdr_ext->vstamp);
775 aouthdr_int->tsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->tsize);
776 aouthdr_int->dsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->dsize);
777 aouthdr_int->bsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->bsize);
778 aouthdr_int->entry = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->entry);
779 aouthdr_int->text_start = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->text_start);
780 aouthdr_int->data_start = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->data_start);
781 #ifdef I960
782 aouthdr_int->tagentries = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->tagentries);
783 #endif
784
785 #ifdef RS6000COFF_C
786 aouthdr_int->o_toc = bfd_h_get_32(abfd, aouthdr_ext->o_toc);
787 aouthdr_int->o_snentry = bfd_h_get_16(abfd, aouthdr_ext->o_snentry);
788 aouthdr_int->o_sntext = bfd_h_get_16(abfd, aouthdr_ext->o_sntext);
789 aouthdr_int->o_sndata = bfd_h_get_16(abfd, aouthdr_ext->o_sndata);
790 aouthdr_int->o_sntoc = bfd_h_get_16(abfd, aouthdr_ext->o_sntoc);
791 aouthdr_int->o_snloader = bfd_h_get_16(abfd, aouthdr_ext->o_snloader);
792 aouthdr_int->o_snbss = bfd_h_get_16(abfd, aouthdr_ext->o_snbss);
793 aouthdr_int->o_algntext = bfd_h_get_16(abfd, aouthdr_ext->o_algntext);
794 aouthdr_int->o_algndata = bfd_h_get_16(abfd, aouthdr_ext->o_algndata);
795 aouthdr_int->o_modtype = bfd_h_get_16(abfd, aouthdr_ext->o_modtype);
796 aouthdr_int->o_maxstack = bfd_h_get_32(abfd, aouthdr_ext->o_maxstack);
797 #endif
798 }
799
800 static unsigned int
801 DEFUN(coff_swap_aouthdr_out,(abfd, in, out),
802 bfd *abfd AND
803 PTR in AND
804 PTR out)
805 {
806 struct internal_aouthdr *aouthdr_in = (struct internal_aouthdr *)in;
807 AOUTHDR *aouthdr_out = (AOUTHDR *)out;
808 bfd_h_put_16(abfd, aouthdr_in->magic, (bfd_byte *) aouthdr_out->magic);
809 bfd_h_put_16(abfd, aouthdr_in->vstamp, (bfd_byte *) aouthdr_out->vstamp);
810 bfd_h_put_32(abfd, aouthdr_in->tsize, (bfd_byte *) aouthdr_out->tsize);
811 bfd_h_put_32(abfd, aouthdr_in->dsize, (bfd_byte *) aouthdr_out->dsize);
812 bfd_h_put_32(abfd, aouthdr_in->bsize, (bfd_byte *) aouthdr_out->bsize);
813 bfd_h_put_32(abfd, aouthdr_in->entry, (bfd_byte *) aouthdr_out->entry);
814 bfd_h_put_32(abfd, aouthdr_in->text_start,
815 (bfd_byte *) aouthdr_out->text_start);
816 bfd_h_put_32(abfd, aouthdr_in->data_start, (bfd_byte *) aouthdr_out->data_start);
817 #ifdef I960
818 bfd_h_put_32(abfd, aouthdr_in->tagentries, (bfd_byte *) aouthdr_out->tagentries);
819 #endif
820 return sizeof(AOUTHDR);
821 }
822
823 static void
824 DEFUN(coff_swap_scnhdr_in,(abfd, scnhdr_ext, scnhdr_int),
825 bfd *abfd AND
826 SCNHDR *scnhdr_ext AND
827 struct internal_scnhdr *scnhdr_int)
828 {
829 memcpy(scnhdr_int->s_name, scnhdr_ext->s_name, sizeof(scnhdr_int->s_name));
830 scnhdr_int->s_vaddr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_vaddr);
831 scnhdr_int->s_paddr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_paddr);
832 scnhdr_int->s_size = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_size);
833
834 scnhdr_int->s_scnptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_scnptr);
835 scnhdr_int->s_relptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_relptr);
836 scnhdr_int->s_lnnoptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_lnnoptr);
837 scnhdr_int->s_flags = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_flags);
838 #if defined(M88)
839 scnhdr_int->s_nreloc = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_nreloc);
840 scnhdr_int->s_nlnno = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_nlnno);
841 #else
842 scnhdr_int->s_nreloc = bfd_h_get_16(abfd, (bfd_byte *) scnhdr_ext->s_nreloc);
843 scnhdr_int->s_nlnno = bfd_h_get_16(abfd, (bfd_byte *) scnhdr_ext->s_nlnno);
844 #endif
845 #ifdef I960
846 scnhdr_int->s_align = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_align);
847 #endif
848 }
849
850 static unsigned int
851 DEFUN(coff_swap_scnhdr_out,(abfd, in, out),
852 bfd *abfd AND
853 PTR in AND
854 PTR out)
855 {
856 struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *)in;
857 SCNHDR *scnhdr_ext = (SCNHDR *)out;
858 memcpy(scnhdr_ext->s_name, scnhdr_int->s_name, sizeof(scnhdr_int->s_name));
859 PUTWORD(abfd, scnhdr_int->s_vaddr, (bfd_byte *) scnhdr_ext->s_vaddr);
860 PUTWORD(abfd, scnhdr_int->s_paddr, (bfd_byte *) scnhdr_ext->s_paddr);
861 PUTWORD(abfd, scnhdr_int->s_size, (bfd_byte *) scnhdr_ext->s_size);
862 PUTWORD(abfd, scnhdr_int->s_scnptr, (bfd_byte *) scnhdr_ext->s_scnptr);
863 PUTWORD(abfd, scnhdr_int->s_relptr, (bfd_byte *) scnhdr_ext->s_relptr);
864 PUTWORD(abfd, scnhdr_int->s_lnnoptr, (bfd_byte *) scnhdr_ext->s_lnnoptr);
865 PUTWORD(abfd, scnhdr_int->s_flags, (bfd_byte *) scnhdr_ext->s_flags);
866 #if defined(M88)
867 PUTWORD(abfd, scnhdr_int->s_nlnno, (bfd_byte *) scnhdr_ext->s_nlnno);
868 PUTWORD(abfd, scnhdr_int->s_nreloc, (bfd_byte *) scnhdr_ext->s_nreloc);
869 #else
870 PUTHALF(abfd, scnhdr_int->s_nlnno, (bfd_byte *) scnhdr_ext->s_nlnno);
871 PUTHALF(abfd, scnhdr_int->s_nreloc, (bfd_byte *) scnhdr_ext->s_nreloc);
872 #endif
873
874 #if defined(I960)
875 PUTWORD(abfd, scnhdr_int->s_align, (bfd_byte *) scnhdr_ext->s_align);
876 #endif
877 return sizeof(SCNHDR);
878 }
879
880
881 /*
882 initialize a section structure with information peculiar to this
883 particular implementation of coff
884 */
885
886 static boolean
887 DEFUN(coff_new_section_hook,(abfd_ignore, section),
888 bfd *abfd_ignore AND
889 asection *section)
890 {
891 section->alignment_power = abfd_ignore->xvec->align_power_min;
892 return true;
893 }
894
895 static asection bfd_debug_section =
896 { "*DEBUG*" };
897
898
899
900 static void
901 DEFUN(make_abs_section,(abfd),
902 bfd *abfd)
903 {
904
905
906
907 }
908
909 /* Take a section header read from a coff file (in HOST byte order),
910 and make a BFD "section" out of it. */
911 static boolean
912 DEFUN(make_a_section_from_file,(abfd, hdr, target_index),
913 bfd *abfd AND
914 struct internal_scnhdr *hdr AND
915 unsigned int target_index)
916 {
917 asection *return_section;
918 char *name;
919
920 /* Assorted wastage to null-terminate the name, thanks AT&T! */
921 name = bfd_alloc(abfd, sizeof (hdr->s_name)+1);
922 if (name == NULL) {
923 bfd_error = no_memory;
924 return false;
925 }
926 strncpy(name, (char *) &hdr->s_name[0], sizeof (hdr->s_name));
927 name[sizeof (hdr->s_name)] = 0;
928
929 return_section = bfd_make_section(abfd, name);
930 if (return_section == NULL)
931 return false;
932
933 /* s_paddr is presumed to be = to s_vaddr */
934
935 return_section->vma = hdr->s_vaddr;
936 return_section->_raw_size = hdr->s_size;
937 return_section->filepos = hdr->s_scnptr;
938 return_section->rel_filepos = hdr->s_relptr;
939 return_section->reloc_count = hdr->s_nreloc;
940 #ifdef I960
941
942 /* FIXME, use a temp var rather than alignment_power */
943 return_section->alignment_power = hdr->s_align;
944 {
945 unsigned int i;
946 for (i = 0; i < 32; i++) {
947 if ((1 << i) >= (int) (return_section->alignment_power)) {
948 return_section->alignment_power = i;
949 break;
950 }
951 }
952 }
953
954 #endif
955 return_section->line_filepos = hdr->s_lnnoptr;
956 /*
957 return_section->linesize = hdr->s_nlnno * sizeof (struct lineno);
958 */
959
960 return_section->lineno_count = hdr->s_nlnno;
961 return_section->userdata = NULL;
962 return_section->next = (asection *) NULL;
963 return_section->flags = styp_to_sec_flags(hdr->s_flags);
964
965 return_section->target_index = target_index;
966
967 if (hdr->s_nreloc != 0)
968 return_section->flags |= SEC_RELOC;
969 /* FIXME: should this check 'hdr->s_size > 0' */
970 if (hdr->s_scnptr != 0)
971 return_section->flags |= SEC_HAS_CONTENTS;
972 return true;
973 }
974 static boolean
975 DEFUN(coff_mkobject,(abfd),
976 bfd *abfd)
977 {
978 abfd->tdata.coff_obj_data = (struct coff_tdata *)bfd_zalloc (abfd,sizeof(coff_data_type));
979 if (abfd->tdata.coff_obj_data == 0){
980 bfd_error = no_memory;
981 return false;
982 }
983 coff_data(abfd)->relocbase = 0;
984 /* make_abs_section(abfd);*/
985 return true;
986 }
987
988 static
989 bfd_target *
990 DEFUN(coff_real_object_p,(abfd, nscns, internal_f, internal_a),
991 bfd *abfd AND
992 unsigned nscns AND
993 struct internal_filehdr *internal_f AND
994 struct internal_aouthdr *internal_a)
995 {
996 coff_data_type *coff;
997 enum bfd_architecture arch;
998 long machine;
999 size_t readsize; /* length of file_info */
1000 SCNHDR *external_sections;
1001
1002 /* Build a play area */
1003 if (coff_mkobject(abfd) != true)
1004 return 0;
1005
1006 coff = coff_data(abfd);
1007
1008
1009 external_sections = (SCNHDR *)bfd_alloc(abfd, readsize = (nscns * SCNHSZ));
1010
1011 if (bfd_read((PTR)external_sections, 1, readsize, abfd) != readsize) {
1012 goto fail;
1013 }
1014
1015
1016 /* Now copy data as required; construct all asections etc */
1017 coff->symbol_index_slew = 0;
1018 coff->relocbase =0;
1019 coff->raw_syment_count = 0;
1020 coff->raw_linenos = 0;
1021 coff->raw_syments = 0;
1022 coff->sym_filepos =0;
1023 coff->flags = internal_f->f_flags;
1024 if (nscns != 0) {
1025 unsigned int i;
1026 for (i = 0; i < nscns; i++) {
1027 struct internal_scnhdr tmp;
1028 coff_swap_scnhdr_in(abfd, external_sections + i, &tmp);
1029 make_a_section_from_file(abfd,&tmp, i+1);
1030 }
1031 }
1032
1033 /* make_abs_section(abfd);*/
1034
1035 /* Determine the machine architecture and type. */
1036 machine = 0;
1037 switch (internal_f->f_magic) {
1038 #ifdef I386MAGIC
1039 case I386MAGIC:
1040 arch = bfd_arch_i386;
1041 machine = 0;
1042 break;
1043 #endif
1044
1045 #ifdef A29K_MAGIC_BIG
1046 case A29K_MAGIC_BIG:
1047 case A29K_MAGIC_LITTLE:
1048 arch = bfd_arch_a29k;
1049 machine = 0;
1050 break;
1051 #endif
1052
1053 #ifdef MIPS
1054 case MIPS_MAGIC_1:
1055 case MIPS_MAGIC_2:
1056 case MIPS_MAGIC_3:
1057 arch = bfd_arch_mips;
1058 machine = 0;
1059 break;
1060 #endif
1061
1062 #ifdef MC68MAGIC
1063 case MC68MAGIC:
1064 case M68MAGIC:
1065 arch = bfd_arch_m68k;
1066 machine = 68020;
1067 break;
1068 #endif
1069 #ifdef MC88MAGIC
1070 case MC88MAGIC:
1071 case MC88DMAGIC:
1072 case MC88OMAGIC:
1073 arch = bfd_arch_m88k;
1074 machine = 88100;
1075 break;
1076 #endif
1077 #ifdef I960
1078 #ifdef I960ROMAGIC
1079 case I960ROMAGIC:
1080 case I960RWMAGIC:
1081 arch = bfd_arch_i960;
1082 switch (F_I960TYPE & internal_f->f_flags)
1083 {
1084 default:
1085 case F_I960CORE:
1086 machine = bfd_mach_i960_core;
1087 break;
1088 case F_I960KB:
1089 machine = bfd_mach_i960_kb_sb;
1090 break;
1091 case F_I960MC:
1092 machine = bfd_mach_i960_mc;
1093 break;
1094 case F_I960XA:
1095 machine = bfd_mach_i960_xa;
1096 break;
1097 case F_I960CA:
1098 machine = bfd_mach_i960_ca;
1099 break;
1100 case F_I960KA:
1101 machine = bfd_mach_i960_ka_sa;
1102 break;
1103 }
1104 break;
1105 #endif
1106 #endif
1107
1108 #ifdef U802ROMAGIC
1109 case U802ROMAGIC:
1110 case U802WRMAGIC:
1111 case U802TOCMAGIC:
1112 arch = bfd_arch_rs6000;
1113 machine = 6000;
1114 break;
1115 #endif
1116
1117 #ifdef H8300MAGIC
1118 case H8300MAGIC:
1119 arch = bfd_arch_h8300;
1120 machine = 0;
1121 break;
1122 #endif
1123
1124 default: /* Unreadable input file type */
1125 arch = bfd_arch_obscure;
1126 break;
1127 }
1128
1129 bfd_default_set_arch_mach(abfd, arch, machine);
1130 if (!(internal_f->f_flags & F_RELFLG))
1131 abfd->flags |= HAS_RELOC;
1132 if ((internal_f->f_flags & F_EXEC))
1133 abfd->flags |= EXEC_P;
1134 if (!(internal_f->f_flags & F_LNNO))
1135 abfd->flags |= HAS_LINENO;
1136 if (!(internal_f->f_flags & F_LSYMS))
1137 abfd->flags |= HAS_LOCALS;
1138
1139
1140 bfd_get_symcount(abfd) = internal_f->f_nsyms;
1141 if (internal_f->f_nsyms)
1142 abfd->flags |= HAS_SYMS;
1143
1144 coff->sym_filepos = internal_f->f_symptr;
1145
1146 /* These members communicate important constants about the symbol table
1147 to GDB's symbol-reading code. These `constants' unfortunately vary
1148 from coff implementation to implementation... */
1149 #ifndef NO_COFF_SYMBOLS
1150 coff->local_n_btmask = N_BTMASK;
1151 coff->local_n_btshft = N_BTSHFT;
1152 coff->local_n_tmask = N_TMASK;
1153 coff->local_n_tshift = N_TSHIFT;
1154 coff->local_symesz = SYMESZ;
1155 coff->local_auxesz = AUXESZ;
1156 coff->local_linesz = LINESZ;
1157 #endif
1158
1159 coff->symbols = (coff_symbol_type *) NULL;
1160 bfd_get_start_address(abfd) = internal_f->f_opthdr ? internal_a->entry : 0;
1161
1162 return abfd->xvec;
1163 fail:
1164 bfd_release(abfd, coff);
1165 return (bfd_target *)NULL;
1166 }
1167
1168 static bfd_target *
1169 DEFUN(coff_object_p,(abfd),
1170 bfd *abfd)
1171 {
1172 int nscns;
1173 FILHDR filehdr;
1174 AOUTHDR opthdr;
1175 struct internal_filehdr internal_f;
1176 struct internal_aouthdr internal_a;
1177
1178 bfd_error = system_call_error;
1179
1180 /* figure out how much to read */
1181 if (bfd_read((PTR) &filehdr, 1, FILHSZ, abfd) != FILHSZ)
1182 return 0;
1183
1184 bfd_swap_filehdr_in(abfd, &filehdr, &internal_f);
1185
1186 if (BADMAG(internal_f)) {
1187 bfd_error = wrong_format;
1188 return 0;
1189 }
1190 nscns =internal_f.f_nscns;
1191
1192 if (internal_f.f_opthdr) {
1193 if (bfd_read((PTR) &opthdr, 1,AOUTSZ, abfd) != AOUTSZ) {
1194 return 0;
1195 }
1196 bfd_swap_aouthdr_in(abfd, (char *)&opthdr, (char *)&internal_a);
1197 }
1198
1199 /* Seek past the opt hdr stuff */
1200 bfd_seek(abfd, internal_f.f_opthdr + FILHSZ, SEEK_SET);
1201
1202 /* if the optional header is NULL or not the correct size then
1203 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1204 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1205 optional header is of a different size.
1206
1207 But the mips keeps extra stuff in it's opthdr, so dont check
1208 when doing that
1209 */
1210
1211 #if defined(M88) || defined(I960)
1212 if (internal_f.f_opthdr != 0 && AOUTSZ != internal_f.f_opthdr)
1213 return (bfd_target *)NULL;
1214 #endif
1215
1216 return coff_real_object_p(abfd, nscns, &internal_f, &internal_a);
1217 }
1218
1219
1220
1221 #ifndef NO_COFF_LINENOS
1222
1223 static void
1224 DEFUN(coff_count_linenumbers,(abfd),
1225 bfd *abfd)
1226 {
1227 unsigned int limit = bfd_get_symcount(abfd);
1228 unsigned int i;
1229 asymbol **p;
1230 {
1231 asection *s = abfd->sections->output_section;
1232 while (s) {
1233 BFD_ASSERT(s->lineno_count == 0);
1234 s = s->next;
1235 }
1236 }
1237
1238
1239 for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) {
1240 asymbol *q_maybe = *p;
1241 if (q_maybe->the_bfd->xvec->flavour == bfd_target_coff_flavour) {
1242 coff_symbol_type *q = coffsymbol(q_maybe);
1243 if (q->lineno) {
1244 /*
1245 This symbol has a linenumber, increment the owning
1246 section's linenumber count
1247 */
1248 alent *l = q->lineno;
1249 q->symbol.section->output_section->lineno_count++;
1250 l++;
1251 while (l->line_number) {
1252 q->symbol.section->output_section->lineno_count++;
1253 l++;
1254 }
1255 }
1256 }
1257 }
1258 }
1259
1260 #endif /* NO_COFF_LINENOS */
1261
1262 #ifndef NO_COFF_SYMBOLS
1263
1264 /*
1265 Takes a bfd and a symbol, returns a pointer to the coff specific area
1266 of the symbol if there is one.
1267 */
1268 static coff_symbol_type *
1269 DEFUN(coff_symbol_from,(ignore_abfd, symbol),
1270 bfd *ignore_abfd AND
1271 asymbol *symbol)
1272 {
1273 if (symbol->the_bfd->xvec->flavour != bfd_target_coff_flavour)
1274 return (coff_symbol_type *)NULL;
1275
1276 if (symbol->the_bfd->tdata.coff_obj_data == (coff_data_type*)NULL)
1277 return (coff_symbol_type *)NULL;
1278
1279 return (coff_symbol_type *) symbol;
1280 }
1281
1282
1283
1284 static void
1285 DEFUN(fixup_symbol_value,(coff_symbol_ptr, syment),
1286 coff_symbol_type *coff_symbol_ptr AND
1287 struct internal_syment *syment)
1288 {
1289
1290 /* Normalize the symbol flags */
1291 if (coff_symbol_ptr->symbol.section == &bfd_com_section) {
1292 /* a common symbol is undefined with a value */
1293 syment->n_scnum = N_UNDEF;
1294 syment->n_value = coff_symbol_ptr->symbol.value;
1295 }
1296 else if (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) {
1297 syment->n_value = coff_symbol_ptr->symbol.value;
1298 }
1299 else if (coff_symbol_ptr->symbol.section == & bfd_und_section) {
1300 syment->n_scnum = N_UNDEF;
1301 syment->n_value = 0;
1302 }
1303 else {
1304 if (coff_symbol_ptr->symbol.section) {
1305 syment->n_scnum =
1306 coff_symbol_ptr->symbol.section->output_section->target_index;
1307
1308 syment->n_value =
1309 coff_symbol_ptr->symbol.value +
1310 coff_symbol_ptr->symbol.section->output_offset +
1311 coff_symbol_ptr->symbol.section->output_section->vma;
1312 }
1313 else {
1314 BFD_ASSERT(0);
1315 /* This can happen, but I don't know why yet (steve@cygnus.com) */
1316 syment->n_scnum = N_ABS;
1317 syment->n_value = coff_symbol_ptr->symbol.value;
1318 }
1319 }
1320 }
1321
1322 /* run through all the symbols in the symbol table and work out what
1323 their indexes into the symbol table will be when output
1324
1325 Coff requires that each C_FILE symbol points to the next one in the
1326 chain, and that the last one points to the first external symbol. We
1327 do that here too.
1328
1329 */
1330 static void
1331 DEFUN(coff_renumber_symbols,(bfd_ptr),
1332 bfd *bfd_ptr)
1333 {
1334 unsigned int symbol_count = bfd_get_symcount(bfd_ptr);
1335 asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols;
1336 unsigned int native_index = 0;
1337 struct internal_syment *last_file = (struct internal_syment *)NULL;
1338 unsigned int symbol_index;
1339 for (symbol_index = 0; symbol_index < symbol_count; symbol_index++)
1340 {
1341 coff_symbol_type *coff_symbol_ptr = coff_symbol_from(bfd_ptr, symbol_ptr_ptr[symbol_index]);
1342 if (coff_symbol_ptr && coff_symbol_ptr->native) {
1343 combined_entry_type *s = coff_symbol_ptr->native;
1344 int i;
1345
1346 if (s->u.syment.n_sclass == C_FILE)
1347 {
1348 if (last_file != (struct internal_syment *)NULL) {
1349 last_file->n_value = native_index;
1350 }
1351 last_file = &(s->u.syment);
1352 }
1353 else {
1354
1355 /* Modify the symbol values according to their section and
1356 type */
1357
1358 fixup_symbol_value(coff_symbol_ptr, &(s->u.syment));
1359 }
1360 for (i = 0; i < s->u.syment.n_numaux + 1; i++) {
1361 s[i].offset = native_index ++;
1362 }
1363 }
1364 else {
1365 native_index++;
1366 }
1367 }
1368 }
1369
1370
1371 /*
1372 Run thorough the symbol table again, and fix it so that all pointers to
1373 entries are changed to the entries' index in the output symbol table.
1374
1375 */
1376 static void
1377 DEFUN(coff_mangle_symbols,(bfd_ptr),
1378 bfd *bfd_ptr)
1379 {
1380 unsigned int symbol_count = bfd_get_symcount(bfd_ptr);
1381 asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols;
1382 unsigned int symbol_index;
1383
1384 for (symbol_index = 0; symbol_index < symbol_count; symbol_index++)
1385 {
1386 coff_symbol_type *coff_symbol_ptr =
1387 coff_symbol_from(bfd_ptr, symbol_ptr_ptr[symbol_index]);
1388
1389 if (coff_symbol_ptr && coff_symbol_ptr->native) {
1390 int i;
1391 combined_entry_type *s = coff_symbol_ptr->native;
1392
1393 for (i = 0; i < s->u.syment.n_numaux ; i++) {
1394 combined_entry_type *a = s + i + 1;
1395 if (a->fix_tag) {
1396 a->u.auxent.x_sym.x_tagndx.l =
1397 a->u.auxent.x_sym.x_tagndx.p->offset;
1398 a->fix_tag = 0;
1399 }
1400 if (a->fix_end) {
1401 a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l =
1402 a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p->offset;
1403 a->fix_end = 0;
1404
1405 }
1406
1407 }
1408 }
1409 }
1410 }
1411
1412 static int string_size;
1413 static void
1414 DEFUN(coff_fix_symbol_name,(ignore_abfd, symbol, native),
1415 bfd *ignore_abfd AND
1416 asymbol *symbol AND
1417 combined_entry_type *native)
1418 {
1419 unsigned int name_length;
1420 union internal_auxent *auxent;
1421 char * name = ( char *)(symbol->name);
1422
1423 if (name == (char *) NULL) {
1424 /* coff symbols always have names, so we'll make one up */
1425 symbol->name = "strange";
1426 name = (char *)symbol->name;
1427 }
1428 name_length = strlen(name);
1429
1430 if (native->u.syment.n_sclass == C_FILE) {
1431 strncpy(native->u.syment._n._n_name, ".file", SYMNMLEN);
1432 auxent = &(native+1)->u.auxent;
1433
1434 #ifdef COFF_LONG_FILENAMES
1435 if (name_length <= FILNMLEN) {
1436 strncpy(auxent->x_file.x_fname, name, FILNMLEN);
1437 }
1438 else {
1439 auxent->x_file.x_n.x_offset = string_size + 4;
1440 auxent->x_file.x_n.x_zeroes = 0;
1441 string_size += name_length + 1;
1442 }
1443 #else
1444 strncpy(auxent->x_file.x_fname, name, FILNMLEN);
1445 if (name_length > FILNMLEN) {
1446 name[FILNMLEN] = '\0';
1447 }
1448 #endif
1449 }
1450 else
1451 { /* NOT A C_FILE SYMBOL */
1452 if (name_length <= SYMNMLEN) {
1453 /* This name will fit into the symbol neatly */
1454 strncpy(native->u.syment._n._n_name, symbol->name, SYMNMLEN);
1455 }
1456 else {
1457 native->u.syment._n._n_n._n_offset = string_size + 4;
1458 native->u.syment._n._n_n._n_zeroes = 0;
1459 string_size += name_length + 1;
1460 }
1461 }
1462 }
1463
1464
1465
1466 static unsigned int
1467 DEFUN(coff_write_symbol,(abfd, symbol, native, written),
1468 bfd *abfd AND
1469 asymbol *symbol AND
1470 combined_entry_type *native AND
1471 unsigned int written)
1472 {
1473 unsigned int numaux = native->u.syment.n_numaux;
1474 int type = native->u.syment.n_type;
1475 int class = native->u.syment.n_sclass;
1476 SYMENT buf;
1477 unsigned int j;
1478 if (symbol->section == &bfd_abs_section)
1479 {
1480 native->u.syment.n_scnum = N_ABS;
1481 }
1482 else if (symbol->section == &bfd_debug_section)
1483 {
1484 native->u.syment.n_scnum = N_DEBUG;
1485 }
1486 else if (symbol->section == &bfd_und_section)
1487 {
1488 native->u.syment.n_scnum = N_UNDEF;
1489 }
1490 else
1491 {
1492 native->u.syment.n_scnum =
1493 symbol->section->output_section->target_index;
1494 }
1495
1496
1497 coff_fix_symbol_name(abfd, symbol, native);
1498
1499 coff_swap_sym_out(abfd, &native->u.syment, &buf);
1500 bfd_write((PTR)& buf, 1, SYMESZ, abfd);
1501 for (j = 0; j != native->u.syment.n_numaux; j++)
1502 {
1503 AUXENT buf1;
1504 bzero((PTR)&buf, AUXESZ);
1505 coff_swap_aux_out(abfd,
1506 &( (native + j + 1)->u.auxent), type, class, &buf1);
1507 bfd_write((PTR) (&buf1), 1, AUXESZ, abfd);
1508 }
1509 /*
1510 Reuse somewhere in the symbol to keep the index
1511 */
1512 set_index(symbol, written);
1513 return written + 1 + numaux;
1514 }
1515
1516
1517 static unsigned int
1518 DEFUN(coff_write_alien_symbol,(abfd, symbol, written),
1519 bfd *abfd AND
1520 asymbol *symbol AND
1521 unsigned int written)
1522 {
1523 /*
1524 This symbol has been created by the loader, or come from a non
1525 coff format. It has no native element to inherit, make our
1526 own
1527 */
1528 combined_entry_type *native;
1529 combined_entry_type dummy;
1530 native = &dummy;
1531 native->u.syment.n_type = T_NULL;
1532 #ifdef I960
1533 native->u.syment.n_flags = 0;
1534 #endif
1535 if (symbol->section == &bfd_und_section)
1536 {
1537 native->u.syment.n_scnum = N_UNDEF;
1538 native->u.syment.n_value = symbol->value;
1539 }
1540 else if (symbol->section == &bfd_com_section)
1541 {
1542 native->u.syment.n_scnum = N_UNDEF;
1543 native->u.syment.n_value = symbol->value;
1544
1545 }
1546
1547 else if (symbol->flags & BSF_DEBUGGING) {
1548 /*
1549 remove name so it doesn't take up any space
1550 */
1551 symbol->name = "";
1552 }
1553 else {
1554 native->u.syment.n_scnum = symbol->section->output_section->target_index;
1555 native->u.syment.n_value = symbol->value +
1556 symbol->section->output_section->vma +
1557 symbol->section->output_offset;
1558 #ifdef I960
1559 /* Copy the any flags from the the file hdr into the symbol */
1560 {
1561 coff_symbol_type *c = coff_symbol_from(abfd, symbol);
1562 if (c != (coff_symbol_type *)NULL) {
1563 native->u.syment.n_flags = c->symbol.the_bfd->flags;
1564 }
1565 }
1566 #endif
1567 }
1568
1569 #ifdef HASPAD1
1570 native->u.syment.pad1[0] = 0;
1571 native->u.syment.pad1[0] = 0;
1572 #endif
1573
1574 native->u.syment.n_type = 0;
1575 if (symbol->flags & BSF_LOCAL)
1576 native->u.syment.n_sclass = C_STAT;
1577 else
1578 native->u.syment.n_sclass = C_EXT;
1579 native->u.syment.n_numaux = 0;
1580
1581 return coff_write_symbol(abfd, symbol, native, written);
1582 }
1583
1584 static unsigned int
1585 DEFUN(coff_write_native_symbol,(abfd, symbol, written),
1586 bfd *abfd AND
1587 coff_symbol_type *symbol AND
1588 unsigned int written)
1589 {
1590 /*
1591 Does this symbol have an ascociated line number - if so then
1592 make it remember this symbol index. Also tag the auxent of
1593 this symbol to point to the right place in the lineno table
1594 */
1595 combined_entry_type *native = symbol->native;
1596
1597 alent *lineno = symbol->lineno;
1598
1599 if (lineno && !symbol->done_lineno) {
1600 unsigned int count = 0;
1601 lineno[count].u.offset = written;
1602 if (native->u.syment.n_numaux) {
1603 union internal_auxent *a = &((native+1)->u.auxent);
1604
1605 a->x_sym.x_fcnary.x_fcn.x_lnnoptr =
1606 symbol->symbol.section->output_section->moving_line_filepos;
1607 }
1608 /*
1609 And count and relocate all other linenumbers
1610 */
1611
1612 count++;
1613 while (lineno[count].line_number) {
1614 lineno[count].u.offset +=
1615 symbol->symbol.section->output_section->vma +
1616 symbol->symbol.section->output_offset;
1617 count++;
1618 }
1619 symbol->done_lineno = true;
1620
1621 symbol->symbol.section->output_section->moving_line_filepos +=
1622 count * LINESZ;
1623 }
1624 return coff_write_symbol(abfd, &( symbol->symbol), native,written);
1625 }
1626
1627 static void
1628 DEFUN(coff_write_symbols,(abfd),
1629 bfd *abfd)
1630 {
1631 unsigned int i;
1632 unsigned int limit = bfd_get_symcount(abfd);
1633 unsigned int written = 0;
1634
1635 asymbol **p;
1636
1637 string_size = 0;
1638
1639
1640 /* Seek to the right place */
1641 bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET);
1642
1643 /* Output all the symbols we have */
1644
1645 written = 0;
1646 for (p = abfd->outsymbols, i = 0; i < limit; i++, p++)
1647 {
1648 asymbol *symbol = *p;
1649 coff_symbol_type *c_symbol = coff_symbol_from(abfd, symbol);
1650
1651 if (c_symbol == (coff_symbol_type *) NULL ||
1652 c_symbol->native == (combined_entry_type *)NULL)
1653 {
1654 written = coff_write_alien_symbol(abfd, symbol, written);
1655 }
1656 else
1657 {
1658 written = coff_write_native_symbol(abfd, c_symbol, written);
1659 }
1660
1661 }
1662
1663 bfd_get_symcount(abfd) = written;
1664
1665 /* Now write out strings */
1666
1667 if (string_size != 0)
1668 {
1669 unsigned int size = string_size + 4;
1670 bfd_byte buffer[4];
1671
1672 bfd_h_put_32(abfd, size, buffer);
1673 bfd_write((PTR) buffer, 1, sizeof(buffer), abfd);
1674 for (p = abfd->outsymbols, i = 0;
1675 i < limit;
1676 i++, p++)
1677 {
1678 asymbol *q = *p;
1679 size_t name_length = strlen(q->name);
1680 int maxlen;
1681 coff_symbol_type* c_symbol = coff_symbol_from(abfd, q);
1682 maxlen = ((c_symbol != NULL && c_symbol->native != NULL) &&
1683 (c_symbol->native->u.syment.n_sclass == C_FILE)) ?
1684 FILNMLEN : SYMNMLEN;
1685
1686 if (name_length > maxlen) {
1687 bfd_write((PTR) (q->name), 1, name_length + 1, abfd);
1688 }
1689 }
1690 }
1691 else {
1692 /* We would normally not write anything here, but we'll write
1693 out 4 so that any stupid coff reader which tries to read
1694 the string table even when there isn't one won't croak.
1695 */
1696
1697 uint32e_type size = 4;
1698 size = size;
1699 bfd_write((PTR)&size, 1, sizeof(size), abfd);
1700
1701 }
1702 }
1703
1704 /*
1705 SUBSUBSECTION
1706 Writing Relocations
1707
1708 To write relocations, all the back end does is step though the
1709 canonical relocation table, and create an
1710 @code{internal_reloc}. The symbol index to use is removed from
1711 the @code{offset} field in the symbol table supplied, the
1712 address comes directly from the sum of the section base
1713 address and the relocation offset and the type is dug directly
1714 from the howto field. Then the @code{internal_reloc} is
1715 swapped into the shape of an @code{external_reloc} and written
1716 out to disk.
1717
1718 */
1719
1720 static void
1721 DEFUN(coff_write_relocs,(abfd),
1722 bfd *abfd)
1723 {
1724 asection *s;
1725 for (s = abfd->sections; s != (asection *) NULL; s = s->next) {
1726 unsigned int i;
1727 struct external_reloc dst;
1728
1729 arelent **p = s->orelocation;
1730 bfd_seek(abfd, s->rel_filepos, SEEK_SET);
1731 for (i = 0; i < s->reloc_count; i++) {
1732 struct internal_reloc n;
1733 arelent *q = p[i];
1734 memset((PTR)&n, 0, sizeof(n));
1735 n.r_vaddr = q->address + s->vma;
1736 if (q->sym_ptr_ptr) {
1737 n.r_symndx = get_index((*(q->sym_ptr_ptr)));
1738 }
1739 #ifdef SELECT_RELOC
1740 /* Work out reloc type from what is required */
1741 SELECT_RELOC(n.r_type, q->howto);
1742 #else
1743 n.r_type = q->howto->type;
1744 #endif
1745 coff_swap_reloc_out(abfd, &n, &dst);
1746 bfd_write((PTR) &n, 1, RELSZ, abfd);
1747 }
1748 }
1749 }
1750 #endif /* NO_COFF_SYMBOLS */
1751
1752 #ifndef NO_COFF_LINENOS
1753
1754 static void
1755 DEFUN(coff_write_linenumbers,(abfd),
1756 bfd *abfd)
1757 {
1758 asection *s;
1759 for (s = abfd->sections; s != (asection *) NULL; s = s->next) {
1760 if (s->lineno_count) {
1761 asymbol **q = abfd->outsymbols;
1762 bfd_seek(abfd, s->line_filepos, SEEK_SET);
1763 /* Find all the linenumbers in this section */
1764 while (*q) {
1765 asymbol *p = *q;
1766 alent *l = BFD_SEND(p->the_bfd, _get_lineno, (p->the_bfd, p));
1767 if (l) {
1768 /* Found a linenumber entry, output */
1769 struct internal_lineno out;
1770 LINENO buff;
1771 memset( (PTR)&out, 0, sizeof(out));
1772 out.l_lnno = 0;
1773 out.l_addr.l_symndx = l->u.offset;
1774 coff_swap_lineno_out(abfd, &out, &buff);
1775 bfd_write((PTR) &buff, 1, LINESZ, abfd);
1776 l++;
1777 while (l->line_number) {
1778 out.l_lnno = l->line_number;
1779 out.l_addr.l_symndx = l->u.offset;
1780 coff_swap_lineno_out(abfd, &out, &buff);
1781 bfd_write((PTR) &buff, 1, LINESZ, abfd);
1782 l++;
1783 }
1784 }
1785 q++;
1786 }
1787 }
1788 }
1789 }
1790
1791 static alent *
1792 DEFUN(coff_get_lineno,(ignore_abfd, symbol),
1793 bfd *ignore_abfd AND
1794 asymbol *symbol)
1795 {
1796 return coffsymbol(symbol)->lineno;
1797 }
1798
1799 #endif /* NO_COFF_LINENOS */
1800
1801 static asymbol *
1802 coff_make_empty_symbol(abfd)
1803 bfd *abfd;
1804 {
1805 coff_symbol_type *new = (coff_symbol_type *) bfd_alloc(abfd, sizeof(coff_symbol_type));
1806 if (new == NULL) {
1807 bfd_error = no_memory;
1808 return (NULL);
1809 } /* on error */
1810 new->native = 0;
1811 new->lineno = (alent *) NULL;
1812 new->done_lineno = false;
1813 new->symbol.the_bfd = abfd;
1814 return &new->symbol;
1815 }
1816
1817 #ifndef NO_COFF_SYMBOLS
1818
1819 static void
1820 DEFUN(coff_print_symbol,(ignore_abfd, filep, symbol, how),
1821 bfd *ignore_abfd AND
1822 PTR filep AND
1823 asymbol *symbol AND
1824 bfd_print_symbol_type how)
1825 {
1826 FILE *file = (FILE *)filep;
1827 switch (how) {
1828 case bfd_print_symbol_name:
1829 fprintf(file, "%s", symbol->name);
1830 break;
1831 case bfd_print_symbol_more:
1832 fprintf(file, "coff %lx %lx", (unsigned long) coffsymbol(symbol)->native,
1833 (unsigned long) coffsymbol(symbol)->lineno);
1834 break;
1835 case bfd_print_symbol_nm:
1836
1837 {
1838 CONST char *section_name = symbol->section->name;
1839 bfd_print_symbol_vandf((PTR) file, symbol);
1840
1841
1842 fprintf(file, " %-5s %s %s %s",
1843 section_name,
1844 coffsymbol(symbol)->native ? "n" : "g",
1845 coffsymbol(symbol)->lineno ? "l" : " ",
1846 symbol->name);
1847 }
1848
1849
1850 break;
1851 case bfd_print_symbol_all:
1852 /* Print out the symbols in a reasonable way */
1853 {
1854 CONST char *section_name = symbol->section->name;
1855
1856
1857 if (coffsymbol(symbol)->native)
1858 {
1859 unsigned int aux;
1860 combined_entry_type *combined = coffsymbol(symbol)->native;
1861 combined_entry_type *root = obj_raw_syments(ignore_abfd);
1862
1863 fprintf(file,"[%3d]",
1864 combined - root);
1865
1866
1867 fprintf(file, "(sc %2d)(fl%4x)(ty%3x)(sc%3d) nx(%d) %08x %s",
1868 combined->u.syment.n_scnum,
1869 combined->u.syment.n_flags,
1870 combined->u.syment.n_type,
1871 combined->u.syment.n_sclass,
1872 combined->u.syment.n_numaux,
1873 combined->u.syment.n_value,
1874 symbol->name
1875 );
1876 for (aux = 0; aux < combined->u.syment.n_numaux; aux++)
1877 {
1878 fprintf(file,"\n");
1879 switch (combined->u.syment.n_sclass) {
1880 case C_FILE:
1881 fprintf(file, "File ");
1882 break;
1883 default:
1884 fprintf(file, "AUX lnno %x size %x",
1885 combined[aux+1].u.auxent.x_sym.x_misc.x_lnsz.x_lnno,
1886 combined[aux+1].u.auxent.x_sym.x_misc.x_lnsz.x_size);
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
2722 coff_swap_aux_in(abfd, (char *)(raw_src),
2723 symbol_ptr->u.syment.n_type,
2724 symbol_ptr->u.syment.n_sclass,
2725 internal_ptr->u.auxent);
2726
2727 coff_pointerize_aux(abfd,
2728 internal,
2729 symbol_ptr->u.syment.n_type,
2730 symbol_ptr->u.syment.n_sclass,
2731 internal_ptr);
2732 }
2733 }
2734
2735 /* Free all the raw stuff */
2736 bfd_release(abfd, raw);
2737
2738 for (internal_ptr = internal; internal_ptr < internal_end;
2739 internal_ptr ++)
2740 {
2741 if (internal_ptr->u.syment.n_sclass == C_FILE) {
2742 /* make a file symbol point to the name in the auxent, since
2743 the text ".file" is redundant */
2744 if ((internal_ptr+1)->u.auxent.x_file.x_n.x_zeroes == 0) {
2745 /* the filename is a long one, point into the string table */
2746 if (string_table == NULL) {
2747 string_table = build_string_table(abfd);
2748 }
2749
2750 internal_ptr->u.syment._n._n_n._n_offset =
2751 (int) (string_table - 4 +
2752 (internal_ptr+1)->u.auxent.x_file.x_n.x_offset);
2753 }
2754 else {
2755 /* ordinary short filename, put into memory anyway */
2756 internal_ptr->u.syment._n._n_n._n_offset = (int)
2757 copy_name(abfd, (internal_ptr+1)->u.auxent.x_file.x_fname,
2758 FILNMLEN);
2759 }
2760 }
2761 else {
2762 if (internal_ptr->u.syment._n._n_n._n_zeroes != 0) {
2763 /* This is a "short" name. Make it long. */
2764 unsigned long i = 0;
2765 char *newstring = NULL;
2766
2767 /* find the length of this string without walking into memory
2768 that isn't ours. */
2769 for (i = 0; i < 8; ++i) {
2770 if (internal_ptr->u.syment._n._n_name[i] == '\0') {
2771 break;
2772 } /* if end of string */
2773 } /* possible lengths of this string. */
2774
2775 if ((newstring = (PTR) bfd_alloc(abfd, ++i)) == NULL) {
2776 bfd_error = no_memory;
2777 return (NULL);
2778 } /* on error */
2779 bzero(newstring, i);
2780 strncpy(newstring, internal_ptr->u.syment._n._n_name, i-1);
2781 internal_ptr->u.syment._n._n_n._n_offset = (int) newstring;
2782 internal_ptr->u.syment._n._n_n._n_zeroes = 0;
2783 }
2784 else if (!SYMNAME_IN_DEBUG(&internal_ptr->u.syment)) {
2785 /* Long name already. Point symbol at the string in the table. */
2786 if (string_table == NULL) {
2787 string_table = build_string_table(abfd);
2788 }
2789 internal_ptr->u.syment._n._n_n._n_offset = (int)
2790 (string_table - 4 + internal_ptr->u.syment._n._n_n._n_offset);
2791 }
2792 else {
2793 /* Long name in debug section. Very similar. */
2794 if (debug_section == NULL) {
2795 debug_section = build_debug_section(abfd);
2796 }
2797 internal_ptr->u.syment._n._n_n._n_offset = (int)
2798 (debug_section + internal_ptr->u.syment._n._n_n._n_offset);
2799 }
2800 }
2801 internal_ptr += internal_ptr->u.syment.n_numaux;
2802 }
2803
2804 obj_raw_syments(abfd) = internal;
2805
2806 return (internal);
2807 } /* get_normalized_symtab() */
2808
2809 #endif /* NO_COFF_SYMBOLS */
2810
2811 static
2812 struct sec *
2813 DEFUN(section_from_bfd_index,(abfd, index),
2814 bfd *abfd AND
2815 int index)
2816 {
2817 struct sec *answer = abfd->sections;
2818
2819 if (index == N_ABS)
2820 {
2821 return &bfd_abs_section;
2822 }
2823 if (index == N_UNDEF)
2824 {
2825 return &bfd_und_section;
2826 }
2827 if(index == N_DEBUG)
2828 {
2829 return &bfd_debug_section;
2830
2831 }
2832
2833 while (answer) {
2834 if (answer->target_index == index)
2835 return answer;
2836 answer = answer->next;
2837 }
2838 BFD_ASSERT(0);
2839 }
2840
2841 #ifndef NO_COFF_LINENOS
2842
2843 /*
2844 SUBSUBSECTION
2845 Reading Linenumbers
2846
2847 Creating the linenumber table is done by reading in the entire
2848 coff linenumber table, and creating another table for internal use.
2849
2850 A coff line number table is structured so that each function
2851 is marked as having a line number of 0. Each line within the
2852 function is an offset from the first line in the function. The
2853 base of the line number information for the table is stored in
2854 the symbol associated with the function.
2855
2856 The information is copied from the external to the internal
2857 table, and each symbol which marks a function is marked by
2858 pointing its...
2859
2860 How does this work ?
2861
2862 */
2863
2864 static boolean
2865 coff_slurp_line_table(abfd, asect)
2866 bfd *abfd;
2867 asection *asect;
2868 {
2869 LINENO *native_lineno;
2870 alent *lineno_cache;
2871
2872 BFD_ASSERT(asect->lineno == (alent *) NULL);
2873
2874 native_lineno = (LINENO *) buy_and_read(abfd,
2875 asect->line_filepos,
2876 SEEK_SET,
2877 (size_t) (LINESZ *
2878 asect->lineno_count));
2879 lineno_cache =
2880 (alent *) bfd_alloc(abfd, (size_t) ((asect->lineno_count + 1) * sizeof(alent)));
2881 if (lineno_cache == NULL) {
2882 bfd_error = no_memory;
2883 return false;
2884 } else {
2885 unsigned int counter = 0;
2886 alent *cache_ptr = lineno_cache;
2887 LINENO *src = native_lineno;
2888
2889 while (counter < asect->lineno_count) {
2890 struct internal_lineno dst;
2891 coff_swap_lineno_in(abfd, src, &dst);
2892 cache_ptr->line_number = dst.l_lnno;
2893
2894 if (cache_ptr->line_number == 0) {
2895 coff_symbol_type *sym =
2896 (coff_symbol_type *) (dst.l_addr.l_symndx
2897 + obj_raw_syments(abfd))->u.syment._n._n_n._n_zeroes;
2898 cache_ptr->u.sym = (asymbol *) sym;
2899 sym->lineno = cache_ptr;
2900 }
2901 else {
2902 cache_ptr->u.offset = dst.l_addr.l_paddr
2903 - bfd_section_vma(abfd, asect);
2904 } /* If no linenumber expect a symbol index */
2905
2906 cache_ptr++;
2907 src++;
2908 counter++;
2909 }
2910 cache_ptr->line_number = 0;
2911
2912 }
2913 asect->lineno = lineno_cache;
2914 /* FIXME, free native_lineno here, or use alloca or something. */
2915 return true;
2916 } /* coff_slurp_line_table() */
2917
2918 #endif /* NO_COFF_LINENOS */
2919
2920 #ifndef NO_COFF_LINENOS
2921
2922 static boolean
2923 DEFUN(coff_slurp_symbol_table,(abfd),
2924 bfd *abfd)
2925 {
2926 combined_entry_type *native_symbols;
2927 coff_symbol_type *cached_area;
2928 unsigned int *table_ptr;
2929
2930 unsigned int number_of_symbols = 0;
2931 if (obj_symbols(abfd))
2932 return true;
2933 bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET);
2934
2935 /* Read in the symbol table */
2936 if ((native_symbols = get_normalized_symtab(abfd)) == NULL) {
2937 return (false);
2938 } /* on error */
2939
2940 /* Allocate enough room for all the symbols in cached form */
2941 cached_area =
2942 (coff_symbol_type *)
2943 bfd_alloc(abfd, (size_t) (bfd_get_symcount(abfd) * sizeof(coff_symbol_type)));
2944
2945 if (cached_area == NULL) {
2946 bfd_error = no_memory;
2947 return false;
2948 } /* on error */
2949 table_ptr =
2950 (unsigned int *)
2951 bfd_alloc(abfd, (size_t) (bfd_get_symcount(abfd) * sizeof(unsigned int)));
2952
2953 if (table_ptr == NULL) {
2954 bfd_error = no_memory;
2955 return false;
2956 }
2957 else
2958 {
2959 coff_symbol_type *dst = cached_area;
2960 unsigned int last_native_index = bfd_get_symcount(abfd);
2961 unsigned int this_index = 0;
2962 while (this_index < last_native_index) {
2963 combined_entry_type *src = native_symbols + this_index;
2964 table_ptr[this_index] = number_of_symbols;
2965 dst->symbol.the_bfd = abfd;
2966
2967 dst->symbol.name = (char *)(src->u.syment._n._n_n._n_offset);
2968 /*
2969 We use the native name field to point to the cached field
2970 */
2971 src->u.syment._n._n_n._n_zeroes = (int) dst;
2972 dst->symbol.section = section_from_bfd_index(abfd,
2973 src->u.syment.n_scnum);
2974 switch (src->u.syment.n_sclass) {
2975 #ifdef I960
2976 case C_LEAFEXT:
2977 #if 0
2978 dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma;
2979 dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
2980 dst->symbol.flags |= BSF_NOT_AT_END;
2981 #endif
2982 /* Fall through to next case */
2983
2984 #endif
2985
2986 case C_EXT:
2987 #ifdef RS6000COFF_C
2988 case C_HIDEXT:
2989 #endif
2990 if ((src->u.syment.n_scnum) == 0) {
2991 if ((src->u.syment.n_value) == 0) {
2992 dst->symbol.section = &bfd_und_section;
2993 dst->symbol.value= 0;
2994 }
2995 else {
2996 dst->symbol.section = &bfd_com_section;
2997 dst->symbol.value = (src->u.syment.n_value);
2998 }
2999 }
3000 else {
3001 /*
3002 Base the value as an index from the base of the
3003 section
3004 */
3005
3006 dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
3007 dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma;
3008
3009 if (ISFCN((src->u.syment.n_type))) {
3010 /*
3011 A function ext does not go at the end of a file
3012 */
3013 dst->symbol.flags |= BSF_NOT_AT_END;
3014 }
3015 }
3016
3017
3018 break;
3019
3020 case C_STAT: /* static */
3021 #ifdef I960
3022 case C_LEAFSTAT: /* static leaf procedure */
3023 #endif
3024 case C_LABEL: /* label */
3025 if (src->u.syment.n_scnum == -2)
3026 dst->symbol.flags = BSF_DEBUGGING;
3027 else
3028 dst->symbol.flags = BSF_LOCAL;
3029 /*
3030 Base the value as an index from the base of the section, if
3031 there is one
3032 */
3033 if (dst->symbol.section)
3034 dst->symbol.value = (src->u.syment.n_value) -
3035 dst->symbol.section->vma;
3036 else
3037 dst->symbol.value = (src->u.syment.n_value) ;
3038 break;
3039
3040 case C_MOS: /* member of structure */
3041 case C_EOS: /* end of structure */
3042 #ifdef NOTDEF /* C_AUTOARG has the same value */
3043 #ifdef C_GLBLREG
3044 case C_GLBLREG: /* A29k-specific storage class */
3045 #endif
3046 #endif
3047 case C_REGPARM: /* register parameter */
3048 case C_REG: /* register variable */
3049 #ifdef C_AUTOARG
3050 case C_AUTOARG: /* 960-specific storage class */
3051 #endif
3052 case C_TPDEF: /* type definition */
3053 case C_ARG:
3054 case C_AUTO: /* automatic variable */
3055 case C_FIELD: /* bit field */
3056 case C_ENTAG: /* enumeration tag */
3057 case C_MOE: /* member of enumeration */
3058 case C_MOU: /* member of union */
3059 case C_UNTAG: /* union tag */
3060 dst->symbol.flags = BSF_DEBUGGING;
3061 dst->symbol.value = (src->u.syment.n_value);
3062 break;
3063
3064 case C_FILE: /* file name */
3065 case C_STRTAG: /* structure tag */
3066 #ifdef RS6000COFF_C
3067 case C_BINCL: /* beginning of include file */
3068 case C_EINCL: /* ending of include file */
3069 case C_GSYM:
3070 case C_LSYM:
3071 case C_PSYM:
3072 case C_RSYM:
3073 case C_RPSYM:
3074 case C_STSYM:
3075 case C_DECL:
3076 case C_ENTRY:
3077 case C_FUN:
3078 case C_BSTAT:
3079 case C_ESTAT:
3080 #endif
3081 dst->symbol.flags = BSF_DEBUGGING;
3082 dst->symbol.value = (src->u.syment.n_value);
3083 break;
3084
3085 case C_BLOCK: /* ".bb" or ".eb" */
3086 case C_FCN: /* ".bf" or ".ef" */
3087 case C_EFCN: /* physical end of function */
3088 dst->symbol.flags = BSF_LOCAL;
3089 /*
3090 Base the value as an index from the base of the section
3091 */
3092 dst->symbol.value = (src->u.syment.n_value) - dst->symbol.section->vma;
3093 break;
3094
3095 case C_NULL:
3096 case C_EXTDEF: /* external definition */
3097 case C_ULABEL: /* undefined label */
3098 case C_USTATIC: /* undefined static */
3099 case C_LINE: /* line # reformatted as symbol table entry */
3100 case C_ALIAS: /* duplicate tag */
3101 case C_HIDDEN: /* ext symbol in dmert public lib */
3102 default:
3103
3104 fprintf(stderr,"Unrecognized storage class %d\n",
3105 src->u.syment.n_sclass);
3106 abort();
3107 dst->symbol.flags = BSF_DEBUGGING;
3108 dst->symbol.value = (src->u.syment.n_value);
3109 break;
3110 }
3111
3112 /* BFD_ASSERT(dst->symbol.flags != 0);*/
3113
3114 dst->native = src;
3115
3116 dst->symbol.udata = 0;
3117 dst->lineno = (alent *) NULL;
3118 this_index += (src->u.syment.n_numaux) + 1;
3119 dst++;
3120 number_of_symbols++;
3121 } /* walk the native symtab */
3122 } /* bfdize the native symtab */
3123
3124 obj_symbols(abfd) = cached_area;
3125 obj_raw_syments(abfd) = native_symbols;
3126
3127 bfd_get_symcount(abfd) = number_of_symbols;
3128 obj_convert(abfd) = table_ptr;
3129 /* Slurp the line tables for each section too */
3130 {
3131 asection *p;
3132 p = abfd->sections;
3133 while (p) {
3134 coff_slurp_line_table(abfd, p);
3135 p = p->next;
3136 }
3137 }
3138 return true;
3139 } /* coff_slurp_symbol_table() */
3140
3141 static unsigned int
3142 coff_get_symtab_upper_bound(abfd)
3143 bfd *abfd;
3144 {
3145 if (!coff_slurp_symbol_table(abfd))
3146 return 0;
3147
3148 return (bfd_get_symcount(abfd) + 1) * (sizeof(coff_symbol_type *));
3149 }
3150
3151
3152 static unsigned int
3153 DEFUN(coff_get_symtab, (abfd, alocation),
3154 bfd *abfd AND
3155 asymbol **alocation)
3156 {
3157 unsigned int counter = 0;
3158 coff_symbol_type *symbase;
3159 coff_symbol_type **location = (coff_symbol_type **) (alocation);
3160 if (!coff_slurp_symbol_table(abfd))
3161 return 0;
3162
3163 symbase = obj_symbols(abfd);
3164 while (counter < bfd_get_symcount(abfd))
3165 {
3166 /* This nasty code looks at the symbol to decide whether or
3167 not it is descibes a constructor/destructor entry point. It
3168 is structured this way to (hopefully) speed non matches */
3169 #if 0
3170 if (0 && symbase->symbol.name[9] == '$')
3171 {
3172 bfd_constructor_entry(abfd,
3173 (asymbol **)location,
3174 symbase->symbol.name[10] == 'I' ?
3175 "CTOR" : "DTOR");
3176 }
3177 #endif
3178 *(location++) = symbase++;
3179 counter++;
3180 }
3181 *location++ = 0;
3182 return bfd_get_symcount(abfd);
3183 }
3184
3185 #endif /* NO_COFF_SYMBOLS */
3186
3187 static unsigned int
3188 coff_get_reloc_upper_bound(abfd, asect)
3189 bfd *abfd;
3190 sec_ptr asect;
3191 {
3192 if (bfd_get_format(abfd) != bfd_object) {
3193 bfd_error = invalid_operation;
3194 return 0;
3195 }
3196 return (asect->reloc_count + 1) * sizeof(arelent *);
3197 }
3198
3199 /*
3200 SUBSUBSECTION
3201 Reading Relocations
3202
3203 Coff relocations are easily transformed into the internal BFD form
3204 (@code{arelent}).
3205
3206 Reading a coff relocation table is done in the following stages:
3207
3208 o The entire coff relocation table is read into memory.
3209
3210 o Each relocation is processed in turn, first it is swapped from the
3211 external to the internal form.
3212
3213 o The symbol referenced in the relocation's symbol index is
3214 turned intoa pointer into the canonical symbol table. Note
3215 that this table is the same as the one returned by a call to
3216 @code{bfd_canonicalize_symtab}. The back end will call the
3217 routine and save the result if a canonicalization hasn't been done.
3218
3219 o The reloc index is turned into a pointer to a howto
3220 structure, in a back end specific way. For instance, the 386
3221 and 960 use the @code{r_type} to directly produce an index
3222 into a howto table vector; the 88k subtracts a number from the
3223 @code{r_type} field and creates an addend field.
3224
3225
3226 */
3227
3228 #ifndef CALC_ADDEND
3229 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
3230 if (ptr && ptr->the_bfd == abfd \
3231 && ptr->section != (asection *) NULL \
3232 && ((ptr->flags & BSF_OLD_COMMON)== 0)) \
3233 { \
3234 cache_ptr->addend = -(ptr->section->vma + ptr->value); \
3235 } \
3236 else { \
3237 cache_ptr->addend = 0; \
3238 }
3239 #endif
3240
3241 static boolean
3242 DEFUN(coff_slurp_reloc_table,(abfd, asect, symbols),
3243 bfd *abfd AND
3244 sec_ptr asect AND
3245 asymbol **symbols)
3246 {
3247 RELOC *native_relocs;
3248 arelent *reloc_cache;
3249 arelent *cache_ptr;
3250
3251 unsigned int idx;
3252
3253 if (asect->relocation)
3254 return true;
3255 if (asect->reloc_count == 0)
3256 return true;
3257 if (asect->flags & SEC_CONSTRUCTOR)
3258 return true;
3259 #ifndef NO_COFF_SYMBOLS
3260 if (!coff_slurp_symbol_table(abfd))
3261 return false;
3262 #endif
3263 native_relocs =
3264 (RELOC *) buy_and_read(abfd,
3265 asect->rel_filepos,
3266 SEEK_SET,
3267 (size_t) (RELSZ *
3268 asect->reloc_count));
3269 reloc_cache = (arelent *)
3270 bfd_alloc(abfd, (size_t) (asect->reloc_count * sizeof(arelent)));
3271
3272 if (reloc_cache == NULL) {
3273 bfd_error = no_memory;
3274 return false;
3275 }
3276
3277
3278 for (idx = 0; idx < asect->reloc_count; idx ++)
3279 {
3280 #ifdef RELOC_PROCESSING
3281 struct internal_reloc dst;
3282 struct external_reloc *src;
3283
3284 cache_ptr = reloc_cache + idx;
3285 src = native_relocs + idx;
3286 bfd_swap_reloc_in(abfd, src, &dst);
3287
3288 RELOC_PROCESSING(cache_ptr, &dst, symbols, abfd, asect);
3289 #else
3290 struct internal_reloc dst;
3291 asymbol *ptr;
3292 struct external_reloc *src;
3293
3294 cache_ptr = reloc_cache + idx;
3295 src = native_relocs + idx;
3296
3297 bfd_swap_reloc_in(abfd, src, &dst);
3298
3299
3300 cache_ptr->address = dst.r_vaddr;
3301
3302 if (dst.r_symndx != -1)
3303 {
3304 cache_ptr->sym_ptr_ptr = symbols + obj_convert(abfd)[dst.r_symndx];
3305 ptr = *(cache_ptr->sym_ptr_ptr);
3306 }
3307 else
3308 {
3309 cache_ptr->sym_ptr_ptr = 0;
3310 ptr = 0;
3311
3312 }
3313
3314 /*
3315 The symbols definitions that we have read in have been
3316 relocated as if their sections started at 0. But the offsets
3317 refering to the symbols in the raw data have not been
3318 modified, so we have to have a negative addend to compensate.
3319
3320 Note that symbols which used to be common must be left alone */
3321
3322 /* Calculate any reloc addend by looking at the symbol */
3323 CALC_ADDEND(abfd, ptr, dst, cache_ptr);
3324
3325 cache_ptr->address -= asect->vma;
3326 /* !! cache_ptr->section = (asection *) NULL;*/
3327
3328 /* Fill in the cache_ptr->howto field from dst.r_type */
3329 RTYPE2HOWTO(cache_ptr, &dst);
3330 #endif
3331
3332 }
3333
3334 asect->relocation = reloc_cache;
3335 return true;
3336 }
3337
3338
3339 /* This is stupid. This function should be a boolean predicate */
3340 static unsigned int
3341 DEFUN(coff_canonicalize_reloc, (abfd, section, relptr, symbols),
3342 bfd *abfd AND
3343 sec_ptr section AND
3344 arelent **relptr AND
3345 asymbol **symbols)
3346 {
3347 arelent *tblptr = section->relocation;
3348 unsigned int count = 0;
3349
3350
3351 if (section->flags & SEC_CONSTRUCTOR)
3352 {
3353 /* this section has relocs made up by us, they are not in the
3354 file, so take them out of their chain and place them into
3355 the data area provided */
3356 arelent_chain *chain = section->constructor_chain;
3357 for (count = 0; count < section->reloc_count; count ++)
3358 {
3359 *relptr ++ = &chain->relent;
3360 chain = chain->next;
3361 }
3362
3363 }
3364 else
3365 {
3366 coff_slurp_reloc_table(abfd, section, symbols);
3367
3368
3369 tblptr = section->relocation;
3370 if (!tblptr)
3371 return 0;
3372
3373 for (; count++ < section->reloc_count;)
3374 *relptr++ = tblptr++;
3375
3376
3377 }
3378 *relptr = 0;
3379 return section->reloc_count;
3380 }
3381
3382 #ifndef NO_COFF_SYMBOLS
3383
3384 /*
3385 provided a BFD, a section and an offset into the section, calculate and
3386 return the name of the source file and the line nearest to the wanted
3387 location.
3388 */
3389
3390 static boolean
3391 DEFUN(coff_find_nearest_line,(abfd,
3392 section,
3393 ignore_symbols,
3394 offset,
3395 filename_ptr,
3396 functionname_ptr,
3397 line_ptr),
3398 bfd *abfd AND
3399 asection *section AND
3400 asymbol **ignore_symbols AND
3401 bfd_vma offset AND
3402 CONST char **filename_ptr AND
3403 CONST char **functionname_ptr AND
3404 unsigned int *line_ptr)
3405 {
3406 static bfd *cache_abfd;
3407 static asection *cache_section;
3408 static bfd_vma cache_offset;
3409 static unsigned int cache_i;
3410 static alent *cache_l;
3411
3412 unsigned int i = 0;
3413 coff_data_type *cof = coff_data(abfd);
3414 /* Run through the raw syments if available */
3415 combined_entry_type *p;
3416 alent *l;
3417 unsigned int line_base = 0;
3418
3419
3420 *filename_ptr = 0;
3421 *functionname_ptr = 0;
3422 *line_ptr = 0;
3423
3424 /* Don't try and find line numbers in a non coff file */
3425 if (abfd->xvec->flavour != bfd_target_coff_flavour)
3426 return false;
3427
3428 if (cof == NULL)
3429 return false;
3430
3431 p = cof->raw_syments;
3432
3433 for (i = 0; i < cof->raw_syment_count; i++) {
3434 if (p->u.syment.n_sclass == C_FILE) {
3435 /* File name has been moved into symbol */
3436 *filename_ptr = (char *) p->u.syment._n._n_n._n_offset;
3437 break;
3438 }
3439 p += 1 + p->u.syment.n_numaux;
3440 }
3441 /* Now wander though the raw linenumbers of the section */
3442 /*
3443 If this is the same BFD as we were previously called with and this is
3444 the same section, and the offset we want is further down then we can
3445 prime the lookup loop
3446 */
3447 if (abfd == cache_abfd &&
3448 section == cache_section &&
3449 offset >= cache_offset) {
3450 i = cache_i;
3451 l = cache_l;
3452 }
3453 else {
3454 i = 0;
3455 l = section->lineno;
3456 }
3457
3458 for (; i < section->lineno_count; i++) {
3459 if (l->line_number == 0) {
3460 /* Get the symbol this line number points at */
3461 coff_symbol_type *coff = (coff_symbol_type *) (l->u.sym);
3462 *functionname_ptr = coff->symbol.name;
3463 if (coff->native) {
3464 combined_entry_type *s = coff->native;
3465 s = s + 1 + s->u.syment.n_numaux;
3466 /*
3467 S should now point to the .bf of the function
3468 */
3469 if (s->u.syment.n_numaux) {
3470 /*
3471 The linenumber is stored in the auxent
3472 */
3473 union internal_auxent *a = &((s + 1)->u.auxent);
3474 line_base = a->x_sym.x_misc.x_lnsz.x_lnno;
3475 }
3476 }
3477 }
3478 else {
3479 if (l->u.offset > offset)
3480 break;
3481 *line_ptr = l->line_number + line_base + 1;
3482 }
3483 l++;
3484 }
3485
3486 cache_abfd = abfd;
3487 cache_section = section;
3488 cache_offset = offset;
3489 cache_i = i;
3490 cache_l = l;
3491
3492 return true;
3493 }
3494
3495 #ifdef GNU960
3496 file_ptr
3497 coff_sym_filepos(abfd)
3498 bfd *abfd;
3499 {
3500 return obj_sym_filepos(abfd);
3501 }
3502 #endif
3503
3504 #endif /* NO_COFF_SYMBOLS */
3505
3506
3507 static int
3508 DEFUN(coff_sizeof_headers,(abfd, reloc),
3509 bfd *abfd AND
3510 boolean reloc)
3511 {
3512 size_t size;
3513
3514 if (reloc == false) {
3515 size = FILHSZ + AOUTSZ;
3516 }
3517 else {
3518 size = FILHSZ;
3519 }
3520
3521 size += abfd->section_count * SCNHSZ;
3522 return size;
3523 }
3524
3525 static bfd_vma
3526 DEFUN(get_value,(reloc, seclet),
3527 arelent *reloc AND
3528 bfd_seclet_type *seclet)
3529 {
3530 bfd_vma value;
3531 asymbol *symbol = *(reloc->sym_ptr_ptr);
3532 /* A symbol holds a pointer to a section, and an offset from the
3533 base of the section. To relocate, we find where the section will
3534 live in the output and add that in */
3535
3536 if (symbol->section == &bfd_und_section)
3537 {
3538 /* Ouch, this is an undefined symbol.. */
3539 bfd_error_vector.undefined_symbol(reloc, seclet);
3540 value = symbol->value;
3541 }
3542 else
3543 {
3544 value = symbol->value +
3545 symbol->section->output_offset +
3546 symbol->section->output_section->vma;
3547 }
3548
3549
3550 /* Add the value contained in the relocation */
3551 value += (short)((reloc->addend) & 0xffff);
3552
3553 return value;
3554 }
3555
3556 static void
3557 DEFUN(perform_slip,(s, slip, input_section, value),
3558 asymbol **s AND
3559 unsigned int slip AND
3560 asection *input_section AND
3561 bfd_vma value)
3562 {
3563
3564 /* Find all symbols past this point, and make them know
3565 what's happened */
3566 while (*s)
3567 {
3568 asymbol *p = *s;
3569 if (p->section == input_section)
3570 {
3571 /* This was pointing into this section, so mangle it */
3572 if (p->value > value)
3573 {
3574 p->value -=2;
3575 }
3576 }
3577 s++;
3578
3579 }
3580 }
3581 static int
3582 DEFUN(movb1,(input_section, symbols, r, shrink),
3583 asection *input_section AND
3584 asymbol **symbols AND
3585 arelent *r AND
3586 unsigned int shrink)
3587 {
3588 bfd_vma value = get_value(r,0);
3589
3590 if (value >= 0xff00)
3591 {
3592
3593 /* Change the reloc type from 16bit, possible 8 to 8bit
3594 possible 16 */
3595 r->howto = r->howto + 1;
3596 /* The place to relc moves back by one */
3597 r->address -=1;
3598
3599 /* This will be two bytes smaller in the long run */
3600 shrink +=2 ;
3601 perform_slip(symbols, 2, input_section, r->address - shrink +1);
3602
3603
3604 }
3605 return shrink;
3606 }
3607
3608 static int
3609 DEFUN(jmp1,(input_section, symbols, r, shrink),
3610 asection *input_section AND
3611 asymbol **symbols AND
3612 arelent *r AND
3613 unsigned int shrink)
3614 {
3615
3616
3617 bfd_vma value = get_value(r, 0);
3618
3619 bfd_vma dot = input_section->output_section->vma +
3620 input_section->output_offset + r->address;
3621 bfd_vma gap;
3622
3623 /* See if the address we're looking at within 127 bytes of where
3624 we are, if so then we can use a small branch rather than the
3625 jump we were going to */
3626
3627 gap = value - (dot - shrink);
3628
3629
3630 if (-120 < (long)gap && (long)gap < 120 )
3631 {
3632
3633 /* Change the reloc type from 16bit, possible 8 to 8bit
3634 possible 16 */
3635 r->howto = r->howto + 1;
3636 /* The place to relc moves back by one */
3637 r->address -=1;
3638
3639 /* This will be two bytes smaller in the long run */
3640 shrink +=2 ;
3641 perform_slip(symbols, 2, input_section, r->address-shrink +1);
3642
3643
3644 }
3645 return shrink;
3646 }
3647
3648 static boolean
3649 DEFUN(bfd_coff_relax_section,(abfd, i, symbols),
3650 bfd *abfd AND
3651 asection *i AND
3652 asymbol **symbols)
3653 {
3654
3655 /* Get enough memory to hold the stuff */
3656 bfd *input_bfd = i->owner;
3657 asection *input_section = i;
3658 int shrink = 0 ;
3659 boolean new = false;
3660
3661 bfd_size_type reloc_size = bfd_get_reloc_upper_bound(input_bfd,
3662 input_section);
3663 arelent **reloc_vector = (arelent **)bfd_xmalloc(reloc_size);
3664
3665 /* Get the relocs and think about them */
3666 if (bfd_canonicalize_reloc(input_bfd,
3667 input_section,
3668 reloc_vector,
3669 symbols))
3670 {
3671 arelent **parent;
3672 for (parent = reloc_vector; *parent; parent++)
3673 {
3674 arelent *r = *parent;
3675 switch (r->howto->type) {
3676 case R_MOVB2:
3677 case R_JMP2:
3678
3679 shrink+=2;
3680 break;
3681
3682 case R_MOVB1:
3683 shrink = movb1(input_section, symbols, r, shrink);
3684 new = true;
3685
3686 break;
3687 case R_JMP1:
3688 shrink = jmp1(input_section, symbols, r, shrink);
3689 new = true;
3690
3691 break;
3692 }
3693 }
3694
3695 }
3696 input_section->_cooked_size -= shrink;
3697 free((char *)reloc_vector);
3698 return new;
3699 }
3700
3701 static bfd_byte *
3702 DEFUN(bfd_coff_get_relocated_section_contents,(in_abfd, seclet),
3703 bfd *in_abfd AND
3704 bfd_seclet_type *seclet)
3705
3706 {
3707 asymbol **symbols = 0;
3708 extern bfd *output_bfd;
3709
3710 /* Get enough memory to hold the stuff */
3711 bfd *input_bfd = seclet->u.indirect.section->owner;
3712 asection *input_section = seclet->u.indirect.section;
3713
3714 bfd_byte *data = (bfd_byte *)malloc(input_section->_raw_size);
3715 bfd_byte *dst = data;
3716 bfd_byte *prev_dst = data;
3717
3718 unsigned int gap = 0;
3719
3720 bfd_size_type reloc_size = bfd_get_reloc_upper_bound(input_bfd,
3721 input_section);
3722 arelent **reloc_vector = (arelent **)bfd_xmalloc(reloc_size);
3723
3724 /* read in the section */
3725 bfd_get_section_contents(input_bfd,
3726 input_section,
3727 data,
3728 0,
3729 input_section->_raw_size);
3730
3731
3732 if (bfd_canonicalize_reloc(input_bfd,
3733 input_section,
3734 reloc_vector,
3735 seclet->u.indirect.symbols) )
3736 {
3737 arelent **parent = reloc_vector;
3738 arelent *reloc ;
3739
3740
3741
3742 unsigned int dst_address = 0;
3743 unsigned int src_address = 0;
3744 unsigned int run;
3745 unsigned int idx;
3746
3747 /* Find how long a run we can do */
3748 while (dst_address < seclet->size)
3749 {
3750
3751 reloc = *parent;
3752 if (reloc)
3753 {
3754 /* Note that the relaxing didn't tie up the addresses in the
3755 relocation, so we use the original address to work out the
3756 run of non-relocated data */
3757 run = reloc->address - src_address;
3758 parent++;
3759
3760 }
3761 else
3762 {
3763 run = seclet->size - dst_address;
3764 }
3765 /* Copy the bytes */
3766 for (idx = 0; idx < run; idx++)
3767 {
3768 data[dst_address++] = data[src_address++];
3769 }
3770
3771 /* Now do the relocation */
3772
3773 if (reloc)
3774 {
3775 switch (reloc->howto->type)
3776 {
3777 case R_JMP2:
3778 /* Speciial relaxed type */
3779 {
3780 bfd_vma dot = seclet->offset + dst_address + seclet->u.indirect.section->output_section->vma;
3781 int gap = get_value(reloc,seclet)-dot-1;
3782 if ((gap & ~0xff ) != 0 &&((gap & 0xff00)!= 0xff00)) abort();
3783
3784 bfd_put_8(in_abfd,gap, data+dst_address);
3785
3786 switch (data[dst_address-1])
3787 {
3788
3789 case 0x5e:
3790 /* jsr -> bsr */
3791 bfd_put_8(in_abfd, 0x55, data+dst_address-1);
3792 break;
3793 case 0x5a:
3794 /* jmp ->bra */
3795 bfd_put_8(in_abfd, 0x40, data+dst_address-1);
3796 break;
3797
3798 default:
3799 abort();
3800
3801 }
3802
3803
3804
3805
3806 dst_address++;
3807 src_address+=3;
3808
3809 break;
3810 }
3811
3812
3813 case R_MOVB2:
3814 /* Special relaxed type, there will be a gap between where we
3815 get stuff from and where we put stuff to now
3816
3817 for a mov.b @aa:16 -> mov.b @aa:8
3818 opcode 0x6a 0x0y offset
3819 -> 0x2y off
3820 */
3821 if (data[dst_address-1] != 0x6a)
3822 abort();
3823 switch (data[dst_address] & 0xf0)
3824 {
3825 case 0x00:
3826 /* Src is memory */
3827 data[dst_address-1] = (data[src_address] & 0xf) | 0x20;
3828 break;
3829 case 0x80:
3830 /* Src is reg */
3831 data[dst_address-1] = (data[src_address] & 0xf) | 0x30;
3832 break;
3833 default:
3834 abort();
3835 }
3836
3837 /* the offset must fit ! after all, what was all the relaxing
3838 about ? */
3839
3840 bfd_put_8(in_abfd, get_value(reloc, seclet), data + dst_address);
3841
3842 /* Note the magic - src goes up by two bytes, but dst by only
3843 one */
3844 dst_address+=1;
3845 src_address+=3;
3846
3847 break;
3848 /* PCrel 8 bits */
3849 case R_PCRBYTE:
3850 {
3851 bfd_vma dot = seclet->offset + dst_address + seclet->u.indirect.section->output_section->vma;
3852 int gap = get_value(reloc,seclet)-dot;
3853 if (gap > 127 || gap < -128)
3854 {
3855 bfd_error_vector.reloc_value_truncated(reloc, seclet);
3856 }
3857
3858 bfd_put_8(in_abfd,gap, data+dst_address);
3859 dst_address++;
3860 src_address++;
3861
3862 break;
3863 }
3864
3865 case R_RELBYTE:
3866 {
3867 unsigned int gap =get_value(reloc,seclet);
3868 if (gap > 256)
3869 {
3870 bfd_error_vector.reloc_value_truncated(reloc, seclet);
3871 }
3872
3873 bfd_put_8(in_abfd, gap, data+dst_address);
3874 dst_address+=1;
3875 src_address+=1;
3876
3877
3878 }
3879 break;
3880 case R_JMP1:
3881 /* A relword which would have like to have been a pcrel */
3882 case R_MOVB1:
3883 /* A relword which would like to have been modified but
3884 didn't make it */
3885 case R_RELWORD:
3886 bfd_put_16(in_abfd, get_value(reloc,seclet), data+dst_address);
3887 dst_address+=2;
3888 src_address+=2;
3889 break;
3890
3891 default:
3892 abort();
3893 }
3894 }
3895 }
3896 }
3897 free((char *)reloc_vector);
3898 return data;
3899
3900 }
3901
3902
3903 #define coff_core_file_failing_command _bfd_dummy_core_file_failing_command
3904 #define coff_core_file_failing_signal _bfd_dummy_core_file_failing_signal
3905 #define coff_core_file_matches_executable_p _bfd_dummy_core_file_matches_executable_p
3906 #define coff_slurp_armap bfd_slurp_coff_armap
3907 #define coff_slurp_extended_name_table _bfd_slurp_extended_name_table
3908 #define coff_truncate_arname bfd_dont_truncate_arname
3909 #define coff_openr_next_archived_file bfd_generic_openr_next_archived_file
3910 #define coff_generic_stat_arch_elt bfd_generic_stat_arch_elt
3911 #define coff_get_section_contents bfd_generic_get_section_contents
3912 #define coff_close_and_cleanup bfd_generic_close_and_cleanup
3913
3914 #define coff_bfd_debug_info_start bfd_void
3915 #define coff_bfd_debug_info_end bfd_void
3916 #define coff_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
3917 #define coff_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
3918 #define coff_bfd_relax_section bfd_generic_relax_section
3919
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