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[binutils.git] / gas / config / obj-coff.h
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1 /* coff object file format
2 Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000
4 Free Software Foundation, Inc.
6 This file is part of GAS.
8 GAS is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
11 any later version.
13 GAS is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GAS; see the file COPYING. If not, write to the Free
20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
21 02111-1307, USA. */
23 #ifndef OBJ_FORMAT_H
24 #define OBJ_FORMAT_H
26 #define OBJ_COFF 1
28 #ifndef BFD_ASSEMBLER
30 #define WORKING_DOT_WORD
31 #define WARN_SIGNED_OVERFLOW_WORD
32 #define OBJ_COFF_OMIT_OPTIONAL_HEADER
33 #define BFD_HEADERS
34 #define BFD
36 #endif
38 #include "targ-cpu.h"
40 #include "bfd.h"
42 /* This internal_lineno crap is to stop namespace pollution from the
43 bfd internal coff headerfile. */
44 #define internal_lineno bfd_internal_lineno
45 #include "coff/internal.h"
46 #undef internal_lineno
48 /* CPU-specific setup: */
50 #ifdef TC_ARM
51 #include "coff/arm.h"
52 #ifndef TARGET_FORMAT
53 #define TARGET_FORMAT "coff-arm"
54 #endif
55 #endif
57 #ifdef TC_PPC
58 #ifdef TE_PE
59 #include "coff/powerpc.h"
60 #else
61 #include "coff/rs6000.h"
62 #endif
63 #endif
65 #ifdef TC_SPARC
66 #include "coff/sparc.h"
67 #endif
69 #ifdef TC_I386
70 #include "coff/i386.h"
72 #ifdef TE_PE
73 #define TARGET_FORMAT "pe-i386"
74 #endif
76 #ifndef TARGET_FORMAT
77 #define TARGET_FORMAT "coff-i386"
78 #endif
79 #endif
81 #ifdef TC_M68K
82 #include "coff/m68k.h"
83 #ifndef TARGET_FORMAT
84 #define TARGET_FORMAT "coff-m68k"
85 #endif
86 #endif
88 #ifdef TC_A29K
89 #include "coff/a29k.h"
90 #define TARGET_FORMAT "coff-a29k-big"
91 #endif
93 #ifdef TC_I960
94 #include "coff/i960.h"
95 #define TARGET_FORMAT "coff-Intel-little"
96 #endif
98 #ifdef TC_Z8K
99 #include "coff/z8k.h"
100 #define TARGET_FORMAT "coff-z8k"
101 #endif
103 #ifdef TC_H8300
104 #include "coff/h8300.h"
105 #define TARGET_FORMAT "coff-h8300"
106 #endif
108 #ifdef TC_H8500
109 #include "coff/h8500.h"
110 #define TARGET_FORMAT "coff-h8500"
111 #endif
113 #ifdef TC_SH
115 #ifdef TE_PE
116 #define COFF_WITH_PE
117 #endif
119 #include "coff/sh.h"
121 #ifdef TE_PE
122 #define TARGET_FORMAT "pe-shl"
123 #else
124 #define TARGET_FORMAT \
125 (shl \
126 ? (sh_small ? "coff-shl-small" : "coff-shl") \
127 : (sh_small ? "coff-sh-small" : "coff-sh"))
128 #endif
129 #endif
131 #ifdef TC_MIPS
132 #define COFF_WITH_PE
133 #include "coff/mipspe.h"
134 #undef TARGET_FORMAT
135 #define TARGET_FORMAT "pe-mips"
136 #endif
138 #ifdef TC_M88K
139 #include "coff/m88k.h"
140 #define TARGET_FORMAT "coff-m88kbcs"
141 #endif
143 #ifdef TC_W65
144 #include "coff/w65.h"
145 #define TARGET_FORMAT "coff-w65"
146 #endif
148 #ifdef TC_TIC30
149 #include "coff/tic30.h"
150 #define TARGET_FORMAT "coff-tic30"
151 #endif
153 #ifdef TC_TIC54X
154 #include "coff/tic54x.h"
155 #define TARGET_FORMAT "coff1-c54x"
156 #endif
158 #ifdef TC_TIC80
159 #include "coff/tic80.h"
160 #define TARGET_FORMAT "coff-tic80"
161 #define ALIGNMENT_IN_S_FLAGS 1
162 #endif
164 #ifdef TC_MCORE
165 #include "coff/mcore.h"
166 #ifndef TARGET_FORMAT
167 #define TARGET_FORMAT "pe-mcore"
168 #endif
169 #endif
171 /* Targets may also set this. Also, if BFD_ASSEMBLER is defined, this
172 will already have been defined. */
173 #undef SYMBOLS_NEED_BACKPOINTERS
174 #define SYMBOLS_NEED_BACKPOINTERS 1
176 #ifndef OBJ_COFF_MAX_AUXENTRIES
177 #define OBJ_COFF_MAX_AUXENTRIES 1
178 #endif /* OBJ_COFF_MAX_AUXENTRIES */
180 extern void coff_obj_symbol_new_hook PARAMS ((symbolS *));
181 #define obj_symbol_new_hook coff_obj_symbol_new_hook
183 extern void coff_obj_read_begin_hook PARAMS ((void));
184 #define obj_read_begin_hook coff_obj_read_begin_hook
186 /* ***********************************************************************
188 This file really contains two implementations of the COFF back end.
189 They are in the process of being merged, but this is only a
190 preliminary, mechanical merging. Many definitions that are
191 identical between the two are still found in both versions.
193 The first version, with BFD_ASSEMBLER defined, uses high-level BFD
194 interfaces and data structures. The second version, with
195 BFD_ASSEMBLER not defined, also uses BFD, but mostly for swapping
196 data structures and for doing the actual I/O. The latter defines
197 the preprocessor symbols BFD and BFD_HEADERS. Try not to let this
198 confuse you.
200 These two are in the process of being merged, and eventually the
201 BFD_ASSEMBLER version should take over completely. Release timing
202 issues and namespace problems convinced me to merge the two
203 together in this fashion, a little sooner than I would have liked.
204 The real merge should be much better done by the time the next
205 release comes out.
207 For now, the structure of this file is:
208 <common>
209 #ifdef BFD_ASSEMBLER
210 <one version>
211 #else
212 <other version>
213 #endif
214 <common>
215 Unfortunately, the common portions are very small at the moment,
216 and many declarations or definitions are duplicated. The structure
217 of obj-coff.c is similar.
219 See doc/internals.texi for a brief discussion of the history, if
220 you care.
222 Ken Raeburn, 5 May 1994
224 *********************************************************************** */
226 #ifdef BFD_ASSEMBLER
228 #include "bfd/libcoff.h"
230 #define OUTPUT_FLAVOR bfd_target_coff_flavour
232 /* SYMBOL TABLE */
234 /* Alter the field names, for now, until we've fixed up the other
235 references to use the new name. */
236 #ifdef TC_I960
237 #define TC_SYMFIELD_TYPE symbolS *
238 #define sy_tc bal
239 #endif
241 #define OBJ_SYMFIELD_TYPE unsigned long
242 #define sy_obj sy_flags
244 #define SYM_AUXENT(S) \
245 (&coffsymbol (symbol_get_bfdsym (S))->native[1].u.auxent)
246 #define SYM_AUXINFO(S) \
247 (&coffsymbol (symbol_get_bfdsym (S))->native[1])
249 #define DO_NOT_STRIP 0
251 extern void obj_coff_section PARAMS ((int));
253 /* The number of auxiliary entries */
254 #define S_GET_NUMBER_AUXILIARY(s) \
255 (coffsymbol (symbol_get_bfdsym (s))->native->u.syment.n_numaux)
256 /* The number of auxiliary entries */
257 #define S_SET_NUMBER_AUXILIARY(s,v) (S_GET_NUMBER_AUXILIARY (s) = (v))
259 /* True if a symbol name is in the string table, i.e. its length is > 8. */
260 #define S_IS_STRING(s) (strlen(S_GET_NAME(s)) > 8 ? 1 : 0)
262 extern int S_SET_DATA_TYPE PARAMS ((symbolS *, int));
263 extern int S_SET_STORAGE_CLASS PARAMS ((symbolS *, int));
264 extern int S_GET_STORAGE_CLASS PARAMS ((symbolS *));
265 extern void SA_SET_SYM_ENDNDX PARAMS ((symbolS *, symbolS *));
267 /* Auxiliary entry macros. SA_ stands for symbol auxiliary */
268 /* Omit the tv related fields */
269 /* Accessors */
271 #define SA_GET_SYM_TAGNDX(s) (SYM_AUXENT (s)->x_sym.x_tagndx.l)
272 #define SA_GET_SYM_LNNO(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno)
273 #define SA_GET_SYM_SIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size)
274 #define SA_GET_SYM_FSIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize)
275 #define SA_GET_SYM_LNNOPTR(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr)
276 #define SA_GET_SYM_ENDNDX(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx)
277 #define SA_GET_SYM_DIMEN(s,i) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)])
278 #define SA_GET_FILE_FNAME(s) (SYM_AUXENT (s)->x_file.x_fname)
279 #define SA_GET_SCN_SCNLEN(s) (SYM_AUXENT (s)->x_scn.x_scnlen)
280 #define SA_GET_SCN_NRELOC(s) (SYM_AUXENT (s)->x_scn.x_nreloc)
281 #define SA_GET_SCN_NLINNO(s) (SYM_AUXENT (s)->x_scn.x_nlinno)
283 #define SA_SET_SYM_LNNO(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno=(v))
284 #define SA_SET_SYM_SIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size=(v))
285 #define SA_SET_SYM_FSIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize=(v))
286 #define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr=(v))
287 #define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)]=(v))
288 #define SA_SET_FILE_FNAME(s,v) strncpy(SYM_AUXENT (s)->x_file.x_fname,(v),FILNMLEN)
289 #define SA_SET_SCN_SCNLEN(s,v) (SYM_AUXENT (s)->x_scn.x_scnlen=(v))
290 #define SA_SET_SCN_NRELOC(s,v) (SYM_AUXENT (s)->x_scn.x_nreloc=(v))
291 #define SA_SET_SCN_NLINNO(s,v) (SYM_AUXENT (s)->x_scn.x_nlinno=(v))
294 * Internal use only definitions. SF_ stands for symbol flags.
296 * These values can be assigned to sy_symbol.ost_flags field of a symbolS.
298 * You'll break i960 if you shift the SYSPROC bits anywhere else. for
299 * more on the balname/callname hack, see tc-i960.h. b.out is done
300 * differently.
303 #define SF_I960_MASK (0x000001ff) /* Bits 0-8 are used by the i960 port. */
304 #define SF_SYSPROC (0x0000003f) /* bits 0-5 are used to store the sysproc number */
305 #define SF_IS_SYSPROC (0x00000040) /* bit 6 marks symbols that are sysprocs */
306 #define SF_BALNAME (0x00000080) /* bit 7 marks BALNAME symbols */
307 #define SF_CALLNAME (0x00000100) /* bit 8 marks CALLNAME symbols */
309 #define SF_NORMAL_MASK (0x0000ffff) /* bits 12-15 are general purpose. */
311 #define SF_STATICS (0x00001000) /* Mark the .text & all symbols */
312 #define SF_DEFINED (0x00002000) /* Symbol is defined in this file */
313 #define SF_STRING (0x00004000) /* Symbol name length > 8 */
314 #define SF_LOCAL (0x00008000) /* Symbol must not be emitted */
316 #define SF_DEBUG_MASK (0xffff0000) /* bits 16-31 are debug info */
318 #define SF_FUNCTION (0x00010000) /* The symbol is a function */
319 #define SF_PROCESS (0x00020000) /* Process symbol before write */
320 #define SF_TAGGED (0x00040000) /* Is associated with a tag */
321 #define SF_TAG (0x00080000) /* Is a tag */
322 #define SF_DEBUG (0x00100000) /* Is in debug or abs section */
323 #define SF_GET_SEGMENT (0x00200000) /* Get the section of the forward symbol. */
324 /* All other bits are unused. */
326 /* Accessors */
327 #define SF_GET(s) (*symbol_get_obj (s))
328 #define SF_GET_DEBUG(s) (symbol_get_bfdsym (s)->flags & BSF_DEBUGGING)
329 #define SF_SET_DEBUG(s) (symbol_get_bfdsym (s)->flags |= BSF_DEBUGGING)
330 #define SF_GET_NORMAL_FIELD(s) (SF_GET (s) & SF_NORMAL_MASK)
331 #define SF_GET_DEBUG_FIELD(s) (SF_GET (s) & SF_DEBUG_MASK)
332 #define SF_GET_FILE(s) (SF_GET (s) & SF_FILE)
333 #define SF_GET_STATICS(s) (SF_GET (s) & SF_STATICS)
334 #define SF_GET_DEFINED(s) (SF_GET (s) & SF_DEFINED)
335 #define SF_GET_STRING(s) (SF_GET (s) & SF_STRING)
336 #define SF_GET_LOCAL(s) (SF_GET (s) & SF_LOCAL)
337 #define SF_GET_FUNCTION(s) (SF_GET (s) & SF_FUNCTION)
338 #define SF_GET_PROCESS(s) (SF_GET (s) & SF_PROCESS)
339 #define SF_GET_TAGGED(s) (SF_GET (s) & SF_TAGGED)
340 #define SF_GET_TAG(s) (SF_GET (s) & SF_TAG)
341 #define SF_GET_GET_SEGMENT(s) (SF_GET (s) & SF_GET_SEGMENT)
342 #define SF_GET_I960(s) (SF_GET (s) & SF_I960_MASK) /* used by i960 */
343 #define SF_GET_BALNAME(s) (SF_GET (s) & SF_BALNAME) /* used by i960 */
344 #define SF_GET_CALLNAME(s) (SF_GET (s) & SF_CALLNAME) /* used by i960 */
345 #define SF_GET_IS_SYSPROC(s) (SF_GET (s) & SF_IS_SYSPROC) /* used by i960 */
346 #define SF_GET_SYSPROC(s) (SF_GET (s) & SF_SYSPROC) /* used by i960 */
348 /* Modifiers */
349 #define SF_SET(s,v) (SF_GET (s) = (v))
350 #define SF_SET_NORMAL_FIELD(s,v) (SF_GET (s) |= ((v) & SF_NORMAL_MASK))
351 #define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK))
352 #define SF_SET_FILE(s) (SF_GET (s) |= SF_FILE)
353 #define SF_SET_STATICS(s) (SF_GET (s) |= SF_STATICS)
354 #define SF_SET_DEFINED(s) (SF_GET (s) |= SF_DEFINED)
355 #define SF_SET_STRING(s) (SF_GET (s) |= SF_STRING)
356 #define SF_SET_LOCAL(s) (SF_GET (s) |= SF_LOCAL)
357 #define SF_CLEAR_LOCAL(s) (SF_GET (s) &= ~SF_LOCAL)
358 #define SF_SET_FUNCTION(s) (SF_GET (s) |= SF_FUNCTION)
359 #define SF_SET_PROCESS(s) (SF_GET (s) |= SF_PROCESS)
360 #define SF_SET_TAGGED(s) (SF_GET (s) |= SF_TAGGED)
361 #define SF_SET_TAG(s) (SF_GET (s) |= SF_TAG)
362 #define SF_SET_GET_SEGMENT(s) (SF_GET (s) |= SF_GET_SEGMENT)
363 #define SF_SET_I960(s,v) (SF_GET (s) |= ((v) & SF_I960_MASK)) /* used by i960 */
364 #define SF_SET_BALNAME(s) (SF_GET (s) |= SF_BALNAME) /* used by i960 */
365 #define SF_SET_CALLNAME(s) (SF_GET (s) |= SF_CALLNAME) /* used by i960 */
366 #define SF_SET_IS_SYSPROC(s) (SF_GET (s) |= SF_IS_SYSPROC) /* used by i960 */
367 #define SF_SET_SYSPROC(s,v) (SF_GET (s) |= ((v) & SF_SYSPROC)) /* used by i960 */
369 /* -------------- Line number handling ------- */
370 extern int text_lineno_number;
371 extern int coff_line_base;
372 extern int coff_n_line_nos;
374 #define obj_emit_lineno(WHERE,LINE,FILE_START) abort ()
375 extern void coff_add_linesym PARAMS ((symbolS *));
377 void c_dot_file_symbol PARAMS ((const char *filename));
378 #define obj_app_file c_dot_file_symbol
380 extern void coff_frob_symbol PARAMS ((symbolS *, int *));
381 extern void coff_adjust_symtab PARAMS ((void));
382 extern void coff_frob_section PARAMS ((segT));
383 extern void coff_adjust_section_syms PARAMS ((bfd *, asection *, PTR));
384 extern void coff_frob_file_after_relocs PARAMS ((void));
385 #define obj_frob_symbol(S,P) coff_frob_symbol(S,&P)
386 #ifndef obj_adjust_symtab
387 #define obj_adjust_symtab() coff_adjust_symtab()
388 #endif
389 #define obj_frob_section(S) coff_frob_section (S)
390 #define obj_frob_file_after_relocs() coff_frob_file_after_relocs ()
392 extern symbolS *coff_last_function;
394 /* Forward the segment of a forwarded symbol, handle assignments that
395 just copy symbol values, etc. */
396 #ifndef OBJ_COPY_SYMBOL_ATTRIBUTES
397 #ifndef TE_I386AIX
398 #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest,src) \
399 (SF_GET_GET_SEGMENT (dest) \
400 ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
401 : 0)
402 #else
403 #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest,src) \
404 (SF_GET_GET_SEGMENT (dest) && S_GET_SEGMENT (dest) == SEG_UNKNOWN \
405 ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
406 : 0)
407 #endif
408 #endif
410 /* sanity check */
412 #ifdef TC_I960
413 #ifndef C_LEAFSTAT
414 hey ! Where is the C_LEAFSTAT definition ? i960 - coff support is depending on it.
415 #endif /* no C_LEAFSTAT */
416 #endif /* TC_I960 */
418 #else /* not BFD_ASSEMBLER */
420 #ifdef TC_A29K
421 /* Allow translate from aout relocs to coff relocs */
422 #define NO_RELOC 20
423 #define RELOC_32 1
424 #define RELOC_8 2
425 #define RELOC_CONST 3
426 #define RELOC_CONSTH 4
427 #define RELOC_JUMPTARG 5
428 #define RELOC_BASE22 6
429 #define RELOC_HI22 7
430 #define RELOC_LO10 8
431 #define RELOC_BASE13 9
432 #define RELOC_WDISP22 10
433 #define RELOC_WDISP30 11
434 #endif
436 extern const segT N_TYPE_seg[];
438 /* Magic number of paged executable. */
439 #define DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE 0x8300
441 /* SYMBOL TABLE */
443 /* Symbol table entry data type */
445 typedef struct
447 /* Basic symbol */
448 struct internal_syment ost_entry;
449 /* Auxiliary entry. */
450 union internal_auxent ost_auxent[OBJ_COFF_MAX_AUXENTRIES];
451 /* obj_coff internal use only flags */
452 unsigned int ost_flags;
453 } obj_symbol_type;
455 #ifndef DO_NOT_STRIP
456 #define DO_NOT_STRIP 0
457 #endif
458 /* Symbol table macros and constants */
460 /* Possible and usefull section number in symbol table
461 * The values of TEXT, DATA and BSS may not be portable.
464 #define C_ABS_SECTION N_ABS
465 #define C_UNDEF_SECTION N_UNDEF
466 #define C_DEBUG_SECTION N_DEBUG
467 #define C_NTV_SECTION N_TV
468 #define C_PTV_SECTION P_TV
469 #define C_REGISTER_SECTION 50
472 * Macros to extract information from a symbol table entry.
473 * This syntaxic indirection allows independence regarding a.out or coff.
474 * The argument (s) of all these macros is a pointer to a symbol table entry.
477 /* Predicates */
478 /* True if the symbol is external */
479 #define S_IS_EXTERNAL(s) ((s)->sy_symbol.ost_entry.n_scnum == C_UNDEF_SECTION)
480 /* True if symbol has been defined, ie :
481 section > 0 (DATA, TEXT or BSS)
482 section == 0 and value > 0 (external bss symbol) */
483 #define S_IS_DEFINED(s) \
484 ((s)->sy_symbol.ost_entry.n_scnum > C_UNDEF_SECTION \
485 || ((s)->sy_symbol.ost_entry.n_scnum == C_UNDEF_SECTION \
486 && S_GET_VALUE (s) > 0) \
487 || ((s)->sy_symbol.ost_entry.n_scnum == C_ABS_SECTION))
488 /* True if a debug special symbol entry */
489 #define S_IS_DEBUG(s) ((s)->sy_symbol.ost_entry.n_scnum == C_DEBUG_SECTION)
490 /* True if a symbol is local symbol name */
491 /* A symbol name whose name includes ^A is a gas internal pseudo symbol */
492 #define S_IS_LOCAL(s) \
493 ((s)->sy_symbol.ost_entry.n_scnum == C_REGISTER_SECTION \
494 || (S_LOCAL_NAME(s) && ! flag_keep_locals && ! S_IS_DEBUG (s)) \
495 || strchr (S_GET_NAME (s), '\001') != NULL \
496 || strchr (S_GET_NAME (s), '\002') != NULL \
497 || (flag_strip_local_absolute \
498 && !S_IS_EXTERNAL(s) \
499 && (s)->sy_symbol.ost_entry.n_scnum == C_ABS_SECTION))
500 /* True if a symbol is not defined in this file */
501 #define S_IS_EXTERN(s) ((s)->sy_symbol.ost_entry.n_scnum == 0 \
502 && S_GET_VALUE (s) == 0)
504 * True if a symbol can be multiply defined (bss symbols have this def
505 * though it is bad practice)
507 #define S_IS_COMMON(s) ((s)->sy_symbol.ost_entry.n_scnum == 0 \
508 && S_GET_VALUE (s) != 0)
509 /* True if a symbol name is in the string table, i.e. its length is > 8. */
510 #define S_IS_STRING(s) (strlen(S_GET_NAME(s)) > 8 ? 1 : 0)
512 /* True if a symbol is defined as weak. */
513 #ifdef TE_PE
514 #define S_IS_WEAK(s) \
515 ((s)->sy_symbol.ost_entry.n_sclass == C_NT_WEAK \
516 || (s)->sy_symbol.ost_entry.n_sclass == C_WEAKEXT)
517 #else
518 #define S_IS_WEAK(s) \
519 ((s)->sy_symbol.ost_entry.n_sclass == C_WEAKEXT)
520 #endif
522 /* Accessors */
523 /* The name of the symbol */
524 #define S_GET_NAME(s) ((char*) (s)->sy_symbol.ost_entry.n_offset)
525 /* The pointer to the string table */
526 #define S_GET_OFFSET(s) ((s)->sy_symbol.ost_entry.n_offset)
527 /* The numeric value of the segment */
528 #define S_GET_SEGMENT(s) s_get_segment(s)
529 /* The data type */
530 #define S_GET_DATA_TYPE(s) ((s)->sy_symbol.ost_entry.n_type)
531 /* The storage class */
532 #define S_GET_STORAGE_CLASS(s) ((s)->sy_symbol.ost_entry.n_sclass)
533 /* The number of auxiliary entries */
534 #define S_GET_NUMBER_AUXILIARY(s) ((s)->sy_symbol.ost_entry.n_numaux)
536 /* Modifiers */
537 /* Set the name of the symbol */
538 #define S_SET_NAME(s,v) ((s)->sy_symbol.ost_entry.n_offset = (unsigned long) (v))
539 /* Set the offset of the symbol */
540 #define S_SET_OFFSET(s,v) ((s)->sy_symbol.ost_entry.n_offset = (v))
541 /* The numeric value of the segment */
542 #define S_SET_SEGMENT(s,v) ((s)->sy_symbol.ost_entry.n_scnum = SEGMENT_TO_SYMBOL_TYPE(v))
543 /* The data type */
544 #define S_SET_DATA_TYPE(s,v) ((s)->sy_symbol.ost_entry.n_type = (v))
545 /* The storage class */
546 #define S_SET_STORAGE_CLASS(s,v) ((s)->sy_symbol.ost_entry.n_sclass = (v))
547 /* The number of auxiliary entries */
548 #define S_SET_NUMBER_AUXILIARY(s,v) ((s)->sy_symbol.ost_entry.n_numaux = (v))
550 /* Additional modifiers */
551 /* The symbol is external (does not mean undefined) */
552 #define S_SET_EXTERNAL(s) { S_SET_STORAGE_CLASS(s, C_EXT) ; SF_CLEAR_LOCAL(s); }
554 /* Auxiliary entry macros. SA_ stands for symbol auxiliary */
555 /* Omit the tv related fields */
556 /* Accessors */
557 #define SYM_AUXENT(S) (&(S)->sy_symbol.ost_auxent[0])
559 #define SA_GET_SYM_TAGNDX(s) (SYM_AUXENT (s)->x_sym.x_tagndx.l)
560 #define SA_GET_SYM_LNNO(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno)
561 #define SA_GET_SYM_SIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size)
562 #define SA_GET_SYM_FSIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize)
563 #define SA_GET_SYM_LNNOPTR(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr)
564 #define SA_GET_SYM_ENDNDX(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx.l)
565 #define SA_GET_SYM_DIMEN(s,i) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)])
566 #define SA_GET_FILE_FNAME(s) (SYM_AUXENT (s)->x_file.x_fname)
567 #define SA_GET_FILE_FNAME_OFFSET(s) (SYM_AUXENT (s)->x_file.x_n.x_offset)
568 #define SA_GET_FILE_FNAME_ZEROS(s) (SYM_AUXENT (s)->x_file.x_n.x_zeroes)
569 #define SA_GET_SCN_SCNLEN(s) (SYM_AUXENT (s)->x_scn.x_scnlen)
570 #define SA_GET_SCN_NRELOC(s) (SYM_AUXENT (s)->x_scn.x_nreloc)
571 #define SA_GET_SCN_NLINNO(s) (SYM_AUXENT (s)->x_scn.x_nlinno)
573 /* Modifiers */
574 #define SA_SET_SYM_TAGNDX(s,v) (SYM_AUXENT (s)->x_sym.x_tagndx.l=(v))
575 #define SA_SET_SYM_LNNO(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno=(v))
576 #define SA_SET_SYM_SIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size=(v))
577 #define SA_SET_SYM_FSIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize=(v))
578 #define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr=(v))
579 #define SA_SET_SYM_ENDNDX(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx.l=(v))
580 #define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)]=(v))
581 #define SA_SET_FILE_FNAME(s,v) strncpy(SYM_AUXENT (s)->x_file.x_fname,(v),FILNMLEN)
582 #define SA_SET_FILE_FNAME_OFFSET(s,v) (SYM_AUXENT (s)->x_file.x_n.x_offset=(v))
583 #define SA_SET_FILE_FNAME_ZEROS(s,v) (SYM_AUXENT (s)->x_file.x_n.x_zeroes=(v))
584 #define SA_SET_SCN_SCNLEN(s,v) (SYM_AUXENT (s)->x_scn.x_scnlen=(v))
585 #define SA_SET_SCN_NRELOC(s,v) (SYM_AUXENT (s)->x_scn.x_nreloc=(v))
586 #define SA_SET_SCN_NLINNO(s,v) (SYM_AUXENT (s)->x_scn.x_nlinno=(v))
589 * Internal use only definitions. SF_ stands for symbol flags.
591 * These values can be assigned to sy_symbol.ost_flags field of a symbolS.
593 * You'll break i960 if you shift the SYSPROC bits anywhere else. for
594 * more on the balname/callname hack, see tc-i960.h. b.out is done
595 * differently.
598 #define SF_I960_MASK (0x000001ff) /* Bits 0-8 are used by the i960 port. */
599 #define SF_SYSPROC (0x0000003f) /* bits 0-5 are used to store the sysproc number */
600 #define SF_IS_SYSPROC (0x00000040) /* bit 6 marks symbols that are sysprocs */
601 #define SF_BALNAME (0x00000080) /* bit 7 marks BALNAME symbols */
602 #define SF_CALLNAME (0x00000100) /* bit 8 marks CALLNAME symbols */
604 #define SF_NORMAL_MASK (0x0000ffff) /* bits 12-15 are general purpose. */
606 #define SF_STATICS (0x00001000) /* Mark the .text & all symbols */
607 #define SF_DEFINED (0x00002000) /* Symbol is defined in this file */
608 #define SF_STRING (0x00004000) /* Symbol name length > 8 */
609 #define SF_LOCAL (0x00008000) /* Symbol must not be emitted */
611 #define SF_DEBUG_MASK (0xffff0000) /* bits 16-31 are debug info */
613 #define SF_FUNCTION (0x00010000) /* The symbol is a function */
614 #define SF_PROCESS (0x00020000) /* Process symbol before write */
615 #define SF_TAGGED (0x00040000) /* Is associated with a tag */
616 #define SF_TAG (0x00080000) /* Is a tag */
617 #define SF_DEBUG (0x00100000) /* Is in debug or abs section */
618 #define SF_GET_SEGMENT (0x00200000) /* Get the section of the forward symbol. */
619 #define SF_ADJ_LNNOPTR (0x00400000) /* Has a lnnoptr */
620 /* All other bits are unused. */
622 /* Accessors */
623 #define SF_GET(s) ((s)->sy_symbol.ost_flags)
624 #define SF_GET_NORMAL_FIELD(s) (SF_GET (s) & SF_NORMAL_MASK)
625 #define SF_GET_DEBUG_FIELD(s) (SF_GET (s) & SF_DEBUG_MASK)
626 #define SF_GET_FILE(s) (SF_GET (s) & SF_FILE)
627 #define SF_GET_STATICS(s) (SF_GET (s) & SF_STATICS)
628 #define SF_GET_DEFINED(s) (SF_GET (s) & SF_DEFINED)
629 #define SF_GET_STRING(s) (SF_GET (s) & SF_STRING)
630 #define SF_GET_LOCAL(s) (SF_GET (s) & SF_LOCAL)
631 #define SF_GET_FUNCTION(s) (SF_GET (s) & SF_FUNCTION)
632 #define SF_GET_PROCESS(s) (SF_GET (s) & SF_PROCESS)
633 #define SF_GET_DEBUG(s) (SF_GET (s) & SF_DEBUG)
634 #define SF_GET_TAGGED(s) (SF_GET (s) & SF_TAGGED)
635 #define SF_GET_TAG(s) (SF_GET (s) & SF_TAG)
636 #define SF_GET_GET_SEGMENT(s) (SF_GET (s) & SF_GET_SEGMENT)
637 #define SF_GET_ADJ_LNNOPTR(s) (SF_GET (s) & SF_ADJ_LNNOPTR)
638 #define SF_GET_I960(s) (SF_GET (s) & SF_I960_MASK) /* used by i960 */
639 #define SF_GET_BALNAME(s) (SF_GET (s) & SF_BALNAME) /* used by i960 */
640 #define SF_GET_CALLNAME(s) (SF_GET (s) & SF_CALLNAME) /* used by i960 */
641 #define SF_GET_IS_SYSPROC(s) (SF_GET (s) & SF_IS_SYSPROC) /* used by i960 */
642 #define SF_GET_SYSPROC(s) (SF_GET (s) & SF_SYSPROC) /* used by i960 */
644 /* Modifiers */
645 #define SF_SET(s,v) (SF_GET (s) = (v))
646 #define SF_SET_NORMAL_FIELD(s,v) (SF_GET (s) |= ((v) & SF_NORMAL_MASK))
647 #define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK))
648 #define SF_SET_FILE(s) (SF_GET (s) |= SF_FILE)
649 #define SF_SET_STATICS(s) (SF_GET (s) |= SF_STATICS)
650 #define SF_SET_DEFINED(s) (SF_GET (s) |= SF_DEFINED)
651 #define SF_SET_STRING(s) (SF_GET (s) |= SF_STRING)
652 #define SF_SET_LOCAL(s) (SF_GET (s) |= SF_LOCAL)
653 #define SF_CLEAR_LOCAL(s) (SF_GET (s) &= ~SF_LOCAL)
654 #define SF_SET_FUNCTION(s) (SF_GET (s) |= SF_FUNCTION)
655 #define SF_SET_PROCESS(s) (SF_GET (s) |= SF_PROCESS)
656 #define SF_SET_DEBUG(s) (SF_GET (s) |= SF_DEBUG)
657 #define SF_SET_TAGGED(s) (SF_GET (s) |= SF_TAGGED)
658 #define SF_SET_TAG(s) (SF_GET (s) |= SF_TAG)
659 #define SF_SET_GET_SEGMENT(s) (SF_GET (s) |= SF_GET_SEGMENT)
660 #define SF_SET_ADJ_LNNOPTR(s) (SF_GET (s) |= SF_ADJ_LNNOPTR)
661 #define SF_SET_I960(s,v) (SF_GET (s) |= ((v) & SF_I960_MASK)) /* used by i960 */
662 #define SF_SET_BALNAME(s) (SF_GET (s) |= SF_BALNAME) /* used by i960 */
663 #define SF_SET_CALLNAME(s) (SF_GET (s) |= SF_CALLNAME) /* used by i960 */
664 #define SF_SET_IS_SYSPROC(s) (SF_GET (s) |= SF_IS_SYSPROC) /* used by i960 */
665 #define SF_SET_SYSPROC(s,v) (SF_GET (s) |= ((v) & SF_SYSPROC)) /* used by i960 */
667 /* File header macro and type definition */
670 * File position calculators. Beware to use them when all the
671 * appropriate fields are set in the header.
674 #ifdef OBJ_COFF_OMIT_OPTIONAL_HEADER
675 #define OBJ_COFF_AOUTHDRSZ (0)
676 #else
677 #define OBJ_COFF_AOUTHDRSZ (AOUTHDRSZ)
678 #endif /* OBJ_COFF_OMIT_OPTIONAL_HEADER */
680 #define H_GET_FILE_SIZE(h) \
681 (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
682 H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
683 H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h) + \
684 H_GET_RELOCATION_SIZE(h) + H_GET_LINENO_SIZE(h) + \
685 H_GET_SYMBOL_TABLE_SIZE(h) + \
686 (h)->string_table_size)
687 #define H_GET_TEXT_FILE_OFFSET(h) \
688 (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
689 H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ)
690 #define H_GET_DATA_FILE_OFFSET(h) \
691 (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
692 H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
693 H_GET_TEXT_SIZE(h))
694 #define H_GET_BSS_FILE_OFFSET(h) 0
695 #define H_GET_RELOCATION_FILE_OFFSET(h) \
696 (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
697 H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
698 H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h))
699 #define H_GET_LINENO_FILE_OFFSET(h) \
700 (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
701 H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
702 H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h) + \
703 H_GET_RELOCATION_SIZE(h))
704 #define H_GET_SYMBOL_TABLE_FILE_OFFSET(h) \
705 (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
706 H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
707 H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h) + \
708 H_GET_RELOCATION_SIZE(h) + H_GET_LINENO_SIZE(h))
710 /* Accessors */
711 /* aouthdr */
712 #define H_GET_MAGIC_NUMBER(h) ((h)->aouthdr.magic)
713 #define H_GET_VERSION_STAMP(h) ((h)->aouthdr.vstamp)
714 #define H_GET_TEXT_SIZE(h) ((h)->aouthdr.tsize)
715 #define H_GET_DATA_SIZE(h) ((h)->aouthdr.dsize)
716 #define H_GET_BSS_SIZE(h) ((h)->aouthdr.bsize)
717 #define H_GET_ENTRY_POINT(h) ((h)->aouthdr.entry)
718 #define H_GET_TEXT_START(h) ((h)->aouthdr.text_start)
719 #define H_GET_DATA_START(h) ((h)->aouthdr.data_start)
720 /* filehdr */
721 #define H_GET_FILE_MAGIC_NUMBER(h) ((h)->filehdr.f_magic)
722 #define H_GET_NUMBER_OF_SECTIONS(h) ((h)->filehdr.f_nscns)
723 #define H_GET_TIME_STAMP(h) ((h)->filehdr.f_timdat)
724 #define H_GET_SYMBOL_TABLE_POINTER(h) ((h)->filehdr.f_symptr)
725 #define H_GET_SYMBOL_COUNT(h) ((h)->filehdr.f_nsyms)
726 #define H_GET_SYMBOL_TABLE_SIZE(h) (H_GET_SYMBOL_COUNT(h) * SYMESZ)
727 #define H_GET_SIZEOF_OPTIONAL_HEADER(h) ((h)->filehdr.f_opthdr)
728 #define H_GET_FLAGS(h) ((h)->filehdr.f_flags)
729 /* Extra fields to achieve bsd a.out compatibility and for convenience */
730 #define H_GET_RELOCATION_SIZE(h) ((h)->relocation_size)
731 #define H_GET_STRING_SIZE(h) ((h)->string_table_size)
732 #define H_GET_LINENO_SIZE(h) ((h)->lineno_size)
734 #ifndef OBJ_COFF_OMIT_OPTIONAL_HEADER
735 #define H_GET_HEADER_SIZE(h) (sizeof (FILHDR) \
736 + sizeof (AOUTHDR)\
737 + (H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ))
738 #else /* OBJ_COFF_OMIT_OPTIONAL_HEADER */
739 #define H_GET_HEADER_SIZE(h) (sizeof (FILHDR) \
740 + (H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ))
741 #endif /* OBJ_COFF_OMIT_OPTIONAL_HEADER */
743 #define H_GET_TEXT_RELOCATION_SIZE(h) (text_section_header.s_nreloc * RELSZ)
744 #define H_GET_DATA_RELOCATION_SIZE(h) (data_section_header.s_nreloc * RELSZ)
746 /* Modifiers */
747 /* aouthdr */
748 #define H_SET_MAGIC_NUMBER(h,v) ((h)->aouthdr.magic = (v))
749 #define H_SET_VERSION_STAMP(h,v) ((h)->aouthdr.vstamp = (v))
750 #define H_SET_TEXT_SIZE(h,v) ((h)->aouthdr.tsize = (v))
751 #define H_SET_DATA_SIZE(h,v) ((h)->aouthdr.dsize = (v))
752 #define H_SET_BSS_SIZE(h,v) ((h)->aouthdr.bsize = (v))
753 #define H_SET_ENTRY_POINT(h,v) ((h)->aouthdr.entry = (v))
754 #define H_SET_TEXT_START(h,v) ((h)->aouthdr.text_start = (v))
755 #define H_SET_DATA_START(h,v) ((h)->aouthdr.data_start = (v))
756 /* filehdr */
757 #define H_SET_FILE_MAGIC_NUMBER(h,v) ((h)->filehdr.f_magic = (v))
758 #define H_SET_NUMBER_OF_SECTIONS(h,v) ((h)->filehdr.f_nscns = (v))
759 #define H_SET_TIME_STAMP(h,v) ((h)->filehdr.f_timdat = (v))
760 #define H_SET_SYMBOL_TABLE_POINTER(h,v) ((h)->filehdr.f_symptr = (v))
761 #define H_SET_SYMBOL_TABLE_SIZE(h,v) ((h)->filehdr.f_nsyms = (v))
762 #define H_SET_SIZEOF_OPTIONAL_HEADER(h,v) ((h)->filehdr.f_opthdr = (v))
763 #define H_SET_FLAGS(h,v) ((h)->filehdr.f_flags = (v))
764 /* Extra fields to achieve bsd a.out compatibility and for convinience */
765 #define H_SET_RELOCATION_SIZE(h,t,d) ((h)->relocation_size = (t)+(d))
766 #define H_SET_STRING_SIZE(h,v) ((h)->string_table_size = (v))
767 #define H_SET_LINENO_SIZE(h,v) ((h)->lineno_size = (v))
769 /* Segment flipping */
771 typedef struct
773 struct internal_aouthdr aouthdr; /* a.out header */
774 struct internal_filehdr filehdr; /* File header, not machine dep. */
775 long string_table_size; /* names + '\0' + sizeof (int) */
776 long relocation_size; /* Cumulated size of relocation
777 information for all sections in
778 bytes. */
779 long lineno_size; /* Size of the line number information
780 table in bytes */
781 } object_headers;
783 struct lineno_list
785 struct bfd_internal_lineno line;
786 char *frag; /* Frag to which the line number is related */
787 struct lineno_list *next; /* Forward chain pointer */
790 #define obj_segment_name(i) (segment_info[(int) (i)].scnhdr.s_name)
792 #define obj_add_segment(s) obj_coff_add_segment (s)
794 extern segT obj_coff_add_segment PARAMS ((const char *));
796 extern void obj_coff_section PARAMS ((int));
798 extern void c_dot_file_symbol PARAMS ((char *filename));
799 #define obj_app_file c_dot_file_symbol
800 extern void obj_extra_stuff PARAMS ((object_headers * headers));
802 extern segT s_get_segment PARAMS ((symbolS *ptr));
804 extern void c_section_header PARAMS ((struct internal_scnhdr * header,
805 char *name,
806 long core_address,
807 long size,
808 long data_ptr,
809 long reloc_ptr,
810 long lineno_ptr,
811 long reloc_number,
812 long lineno_number,
813 long alignment));
815 #ifndef tc_coff_symbol_emit_hook
816 void tc_coff_symbol_emit_hook PARAMS ((symbolS *));
817 #endif
819 /* sanity check */
821 #ifdef TC_I960
822 #ifndef C_LEAFSTAT
823 hey ! Where is the C_LEAFSTAT definition ? i960 - coff support is depending on it.
824 #endif /* no C_LEAFSTAT */
825 #endif /* TC_I960 */
826 extern struct internal_scnhdr data_section_header;
827 extern struct internal_scnhdr text_section_header;
829 /* Forward the segment of a forwarded symbol. */
830 #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest,src) \
831 (SF_GET_GET_SEGMENT (dest) \
832 ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
833 : 0)
835 #ifdef TE_PE
836 #define obj_handle_link_once(t) obj_coff_pe_handle_link_once (t)
837 extern void obj_coff_pe_handle_link_once ();
838 #endif
840 #endif /* not BFD_ASSEMBLER */
842 extern const pseudo_typeS coff_pseudo_table[];
844 #ifndef obj_pop_insert
845 #define obj_pop_insert() pop_insert (coff_pseudo_table)
846 #endif
848 /* In COFF, if a symbol is defined using .def/.val SYM/.endef, it's OK
849 to redefine the symbol later on. This can happen if C symbols use
850 a prefix, and a symbol is defined both with and without the prefix,
851 as in start/_start/__start in gcc/libgcc1-test.c. */
852 #define RESOLVE_SYMBOL_REDEFINITION(sym) \
853 (SF_GET_GET_SEGMENT (sym) \
854 ? (sym->sy_frag = frag_now, \
855 S_SET_VALUE (sym, frag_now_fix ()), \
856 S_SET_SEGMENT (sym, now_seg), \
857 0) \
858 : 0)
860 /* Stabs in a coff file go into their own section. */
861 #define SEPARATE_STAB_SECTIONS 1
863 /* We need 12 bytes at the start of the section to hold some initial
864 information. */
865 extern void obj_coff_init_stab_section PARAMS ((segT));
866 #define INIT_STAB_SECTION(seg) obj_coff_init_stab_section (seg)
868 /* Store the number of relocations in the section aux entry. */
869 #define SET_SECTION_RELOCS(sec, relocs, n) \
870 SA_SET_SCN_NRELOC (section_symbol (sec), n)
872 #endif /* OBJ_FORMAT_H */