2001-01-15 Jeff Johnston <jjohnstn@redhat.com>
[binutils.git] / gas / config / obj-coff.h
blob8cf7999d86238cee1652e696b2096d53113dc393
1 /* coff object file format
2 Copyright (C) 1989, 90, 91, 92, 94, 95, 96, 97, 98, 99, 2000
3 Free Software Foundation, Inc.
5 This file is part of GAS.
7 GAS 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, or (at your option)
10 any later version.
12 GAS is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GAS; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
20 02111-1307, USA. */
22 #ifndef OBJ_FORMAT_H
23 #define OBJ_FORMAT_H
25 #define OBJ_COFF 1
27 #ifndef BFD_ASSEMBLER
29 #define WORKING_DOT_WORD
30 #define WARN_SIGNED_OVERFLOW_WORD
31 #define OBJ_COFF_OMIT_OPTIONAL_HEADER
32 #define BFD_HEADERS
33 #define BFD
35 #endif
37 #include "targ-cpu.h"
39 #include "bfd.h"
41 /* This internal_lineno crap is to stop namespace pollution from the
42 bfd internal coff headerfile. */
43 #define internal_lineno bfd_internal_lineno
44 #include "coff/internal.h"
45 #undef internal_lineno
47 /* CPU-specific setup: */
49 #ifdef TC_ARM
50 #include "coff/arm.h"
51 #ifndef TARGET_FORMAT
52 #define TARGET_FORMAT "coff-arm"
53 #endif
54 #endif
56 #ifdef TC_PPC
57 #ifdef TE_PE
58 #include "coff/powerpc.h"
59 #else
60 #include "coff/rs6000.h"
61 #endif
62 #endif
64 #ifdef TC_SPARC
65 #include "coff/sparc.h"
66 #endif
68 #ifdef TC_I386
69 #include "coff/i386.h"
71 #ifdef TE_PE
72 #define TARGET_FORMAT "pe-i386"
73 #endif
75 #ifndef TARGET_FORMAT
76 #define TARGET_FORMAT "coff-i386"
77 #endif
78 #endif
80 #ifdef TC_M68K
81 #include "coff/m68k.h"
82 #ifndef TARGET_FORMAT
83 #define TARGET_FORMAT "coff-m68k"
84 #endif
85 #endif
87 #ifdef TC_A29K
88 #include "coff/a29k.h"
89 #define TARGET_FORMAT "coff-a29k-big"
90 #endif
92 #ifdef TC_I960
93 #include "coff/i960.h"
94 #define TARGET_FORMAT "coff-Intel-little"
95 #endif
97 #ifdef TC_Z8K
98 #include "coff/z8k.h"
99 #define TARGET_FORMAT "coff-z8k"
100 #endif
102 #ifdef TC_H8300
103 #include "coff/h8300.h"
104 #define TARGET_FORMAT "coff-h8300"
105 #endif
107 #ifdef TC_H8500
108 #include "coff/h8500.h"
109 #define TARGET_FORMAT "coff-h8500"
110 #endif
112 #ifdef TC_SH
114 #ifdef TE_PE
115 #define COFF_WITH_PE
116 #endif
118 #include "coff/sh.h"
120 #ifdef TE_PE
121 #define TARGET_FORMAT "pe-shl"
122 #else
123 #define TARGET_FORMAT \
124 (shl \
125 ? (sh_small ? "coff-shl-small" : "coff-shl") \
126 : (sh_small ? "coff-sh-small" : "coff-sh"))
127 #endif
128 #endif
130 #ifdef TC_MIPS
131 #define COFF_WITH_PE
132 #include "coff/mipspe.h"
133 #undef TARGET_FORMAT
134 #define TARGET_FORMAT "pe-mips"
135 #endif
137 #ifdef TC_M88K
138 #include "coff/m88k.h"
139 #define TARGET_FORMAT "coff-m88kbcs"
140 #endif
142 #ifdef TC_W65
143 #include "coff/w65.h"
144 #define TARGET_FORMAT "coff-w65"
145 #endif
147 #ifdef TC_TIC30
148 #include "coff/tic30.h"
149 #define TARGET_FORMAT "coff-tic30"
150 #endif
152 #ifdef TC_TIC54X
153 #include "coff/tic54x.h"
154 #define TARGET_FORMAT "coff1-c54x"
155 #endif
157 #ifdef TC_TIC80
158 #include "coff/tic80.h"
159 #define TARGET_FORMAT "coff-tic80"
160 #define ALIGNMENT_IN_S_FLAGS 1
161 #endif
163 #ifdef TC_MCORE
164 #include "coff/mcore.h"
165 #ifndef TARGET_FORMAT
166 #define TARGET_FORMAT "pe-mcore"
167 #endif
168 #endif
170 /* Targets may also set this. Also, if BFD_ASSEMBLER is defined, this
171 will already have been defined. */
172 #undef SYMBOLS_NEED_BACKPOINTERS
173 #define SYMBOLS_NEED_BACKPOINTERS 1
175 #ifndef OBJ_COFF_MAX_AUXENTRIES
176 #define OBJ_COFF_MAX_AUXENTRIES 1
177 #endif /* OBJ_COFF_MAX_AUXENTRIES */
179 extern void coff_obj_symbol_new_hook PARAMS ((symbolS *));
180 #define obj_symbol_new_hook coff_obj_symbol_new_hook
182 extern void coff_obj_read_begin_hook PARAMS ((void));
183 #define obj_read_begin_hook coff_obj_read_begin_hook
185 /* ***********************************************************************
187 This file really contains two implementations of the COFF back end.
188 They are in the process of being merged, but this is only a
189 preliminary, mechanical merging. Many definitions that are
190 identical between the two are still found in both versions.
192 The first version, with BFD_ASSEMBLER defined, uses high-level BFD
193 interfaces and data structures. The second version, with
194 BFD_ASSEMBLER not defined, also uses BFD, but mostly for swapping
195 data structures and for doing the actual I/O. The latter defines
196 the preprocessor symbols BFD and BFD_HEADERS. Try not to let this
197 confuse you.
199 These two are in the process of being merged, and eventually the
200 BFD_ASSEMBLER version should take over completely. Release timing
201 issues and namespace problems convinced me to merge the two
202 together in this fashion, a little sooner than I would have liked.
203 The real merge should be much better done by the time the next
204 release comes out.
206 For now, the structure of this file is:
207 <common>
208 #ifdef BFD_ASSEMBLER
209 <one version>
210 #else
211 <other version>
212 #endif
213 <common>
214 Unfortunately, the common portions are very small at the moment,
215 and many declarations or definitions are duplicated. The structure
216 of obj-coff.c is similar.
218 See doc/internals.texi for a brief discussion of the history, if
219 you care.
221 Ken Raeburn, 5 May 1994
223 *********************************************************************** */
225 #ifdef BFD_ASSEMBLER
227 #include "bfd/libcoff.h"
229 #define OUTPUT_FLAVOR bfd_target_coff_flavour
231 /* SYMBOL TABLE */
233 /* Alter the field names, for now, until we've fixed up the other
234 references to use the new name. */
235 #ifdef TC_I960
236 #define TC_SYMFIELD_TYPE symbolS *
237 #define sy_tc bal
238 #endif
240 #define OBJ_SYMFIELD_TYPE unsigned long
241 #define sy_obj sy_flags
243 #define SYM_AUXENT(S) \
244 (&coffsymbol (symbol_get_bfdsym (S))->native[1].u.auxent)
245 #define SYM_AUXINFO(S) \
246 (&coffsymbol (symbol_get_bfdsym (S))->native[1])
248 #define DO_NOT_STRIP 0
250 extern void obj_coff_section PARAMS ((int));
252 /* The number of auxiliary entries */
253 #define S_GET_NUMBER_AUXILIARY(s) \
254 (coffsymbol (symbol_get_bfdsym (s))->native->u.syment.n_numaux)
255 /* The number of auxiliary entries */
256 #define S_SET_NUMBER_AUXILIARY(s,v) (S_GET_NUMBER_AUXILIARY (s) = (v))
258 /* True if a symbol name is in the string table, i.e. its length is > 8. */
259 #define S_IS_STRING(s) (strlen(S_GET_NAME(s)) > 8 ? 1 : 0)
261 extern int S_SET_DATA_TYPE PARAMS ((symbolS *, int));
262 extern int S_SET_STORAGE_CLASS PARAMS ((symbolS *, int));
263 extern int S_GET_STORAGE_CLASS PARAMS ((symbolS *));
264 extern void SA_SET_SYM_ENDNDX PARAMS ((symbolS *, symbolS *));
266 /* Auxiliary entry macros. SA_ stands for symbol auxiliary */
267 /* Omit the tv related fields */
268 /* Accessors */
270 #define SA_GET_SYM_TAGNDX(s) (SYM_AUXENT (s)->x_sym.x_tagndx.l)
271 #define SA_GET_SYM_LNNO(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno)
272 #define SA_GET_SYM_SIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size)
273 #define SA_GET_SYM_FSIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize)
274 #define SA_GET_SYM_LNNOPTR(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr)
275 #define SA_GET_SYM_ENDNDX(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx)
276 #define SA_GET_SYM_DIMEN(s,i) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)])
277 #define SA_GET_FILE_FNAME(s) (SYM_AUXENT (s)->x_file.x_fname)
278 #define SA_GET_SCN_SCNLEN(s) (SYM_AUXENT (s)->x_scn.x_scnlen)
279 #define SA_GET_SCN_NRELOC(s) (SYM_AUXENT (s)->x_scn.x_nreloc)
280 #define SA_GET_SCN_NLINNO(s) (SYM_AUXENT (s)->x_scn.x_nlinno)
282 #define SA_SET_SYM_LNNO(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno=(v))
283 #define SA_SET_SYM_SIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size=(v))
284 #define SA_SET_SYM_FSIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize=(v))
285 #define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr=(v))
286 #define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)]=(v))
287 #define SA_SET_FILE_FNAME(s,v) strncpy(SYM_AUXENT (s)->x_file.x_fname,(v),FILNMLEN)
288 #define SA_SET_SCN_SCNLEN(s,v) (SYM_AUXENT (s)->x_scn.x_scnlen=(v))
289 #define SA_SET_SCN_NRELOC(s,v) (SYM_AUXENT (s)->x_scn.x_nreloc=(v))
290 #define SA_SET_SCN_NLINNO(s,v) (SYM_AUXENT (s)->x_scn.x_nlinno=(v))
293 * Internal use only definitions. SF_ stands for symbol flags.
295 * These values can be assigned to sy_symbol.ost_flags field of a symbolS.
297 * You'll break i960 if you shift the SYSPROC bits anywhere else. for
298 * more on the balname/callname hack, see tc-i960.h. b.out is done
299 * differently.
302 #define SF_I960_MASK (0x000001ff) /* Bits 0-8 are used by the i960 port. */
303 #define SF_SYSPROC (0x0000003f) /* bits 0-5 are used to store the sysproc number */
304 #define SF_IS_SYSPROC (0x00000040) /* bit 6 marks symbols that are sysprocs */
305 #define SF_BALNAME (0x00000080) /* bit 7 marks BALNAME symbols */
306 #define SF_CALLNAME (0x00000100) /* bit 8 marks CALLNAME symbols */
308 #define SF_NORMAL_MASK (0x0000ffff) /* bits 12-15 are general purpose. */
310 #define SF_STATICS (0x00001000) /* Mark the .text & all symbols */
311 #define SF_DEFINED (0x00002000) /* Symbol is defined in this file */
312 #define SF_STRING (0x00004000) /* Symbol name length > 8 */
313 #define SF_LOCAL (0x00008000) /* Symbol must not be emitted */
315 #define SF_DEBUG_MASK (0xffff0000) /* bits 16-31 are debug info */
317 #define SF_FUNCTION (0x00010000) /* The symbol is a function */
318 #define SF_PROCESS (0x00020000) /* Process symbol before write */
319 #define SF_TAGGED (0x00040000) /* Is associated with a tag */
320 #define SF_TAG (0x00080000) /* Is a tag */
321 #define SF_DEBUG (0x00100000) /* Is in debug or abs section */
322 #define SF_GET_SEGMENT (0x00200000) /* Get the section of the forward symbol. */
323 /* All other bits are unused. */
325 /* Accessors */
326 #define SF_GET(s) (*symbol_get_obj (s))
327 #define SF_GET_DEBUG(s) (symbol_get_bfdsym (s)->flags & BSF_DEBUGGING)
328 #define SF_SET_DEBUG(s) (symbol_get_bfdsym (s)->flags |= BSF_DEBUGGING)
329 #define SF_GET_NORMAL_FIELD(s) (SF_GET (s) & SF_NORMAL_MASK)
330 #define SF_GET_DEBUG_FIELD(s) (SF_GET (s) & SF_DEBUG_MASK)
331 #define SF_GET_FILE(s) (SF_GET (s) & SF_FILE)
332 #define SF_GET_STATICS(s) (SF_GET (s) & SF_STATICS)
333 #define SF_GET_DEFINED(s) (SF_GET (s) & SF_DEFINED)
334 #define SF_GET_STRING(s) (SF_GET (s) & SF_STRING)
335 #define SF_GET_LOCAL(s) (SF_GET (s) & SF_LOCAL)
336 #define SF_GET_FUNCTION(s) (SF_GET (s) & SF_FUNCTION)
337 #define SF_GET_PROCESS(s) (SF_GET (s) & SF_PROCESS)
338 #define SF_GET_TAGGED(s) (SF_GET (s) & SF_TAGGED)
339 #define SF_GET_TAG(s) (SF_GET (s) & SF_TAG)
340 #define SF_GET_GET_SEGMENT(s) (SF_GET (s) & SF_GET_SEGMENT)
341 #define SF_GET_I960(s) (SF_GET (s) & SF_I960_MASK) /* used by i960 */
342 #define SF_GET_BALNAME(s) (SF_GET (s) & SF_BALNAME) /* used by i960 */
343 #define SF_GET_CALLNAME(s) (SF_GET (s) & SF_CALLNAME) /* used by i960 */
344 #define SF_GET_IS_SYSPROC(s) (SF_GET (s) & SF_IS_SYSPROC) /* used by i960 */
345 #define SF_GET_SYSPROC(s) (SF_GET (s) & SF_SYSPROC) /* used by i960 */
347 /* Modifiers */
348 #define SF_SET(s,v) (SF_GET (s) = (v))
349 #define SF_SET_NORMAL_FIELD(s,v) (SF_GET (s) |= ((v) & SF_NORMAL_MASK))
350 #define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK))
351 #define SF_SET_FILE(s) (SF_GET (s) |= SF_FILE)
352 #define SF_SET_STATICS(s) (SF_GET (s) |= SF_STATICS)
353 #define SF_SET_DEFINED(s) (SF_GET (s) |= SF_DEFINED)
354 #define SF_SET_STRING(s) (SF_GET (s) |= SF_STRING)
355 #define SF_SET_LOCAL(s) (SF_GET (s) |= SF_LOCAL)
356 #define SF_CLEAR_LOCAL(s) (SF_GET (s) &= ~SF_LOCAL)
357 #define SF_SET_FUNCTION(s) (SF_GET (s) |= SF_FUNCTION)
358 #define SF_SET_PROCESS(s) (SF_GET (s) |= SF_PROCESS)
359 #define SF_SET_TAGGED(s) (SF_GET (s) |= SF_TAGGED)
360 #define SF_SET_TAG(s) (SF_GET (s) |= SF_TAG)
361 #define SF_SET_GET_SEGMENT(s) (SF_GET (s) |= SF_GET_SEGMENT)
362 #define SF_SET_I960(s,v) (SF_GET (s) |= ((v) & SF_I960_MASK)) /* used by i960 */
363 #define SF_SET_BALNAME(s) (SF_GET (s) |= SF_BALNAME) /* used by i960 */
364 #define SF_SET_CALLNAME(s) (SF_GET (s) |= SF_CALLNAME) /* used by i960 */
365 #define SF_SET_IS_SYSPROC(s) (SF_GET (s) |= SF_IS_SYSPROC) /* used by i960 */
366 #define SF_SET_SYSPROC(s,v) (SF_GET (s) |= ((v) & SF_SYSPROC)) /* used by i960 */
368 /* -------------- Line number handling ------- */
369 extern int text_lineno_number;
370 extern int coff_line_base;
371 extern int coff_n_line_nos;
373 #define obj_emit_lineno(WHERE,LINE,FILE_START) abort ()
374 extern void coff_add_linesym PARAMS ((symbolS *));
376 void c_dot_file_symbol PARAMS ((const char *filename));
377 #define obj_app_file c_dot_file_symbol
379 extern void coff_frob_symbol PARAMS ((symbolS *, int *));
380 extern void coff_adjust_symtab PARAMS ((void));
381 extern void coff_frob_section PARAMS ((segT));
382 extern void coff_adjust_section_syms PARAMS ((bfd *, asection *, PTR));
383 extern void coff_frob_file_after_relocs PARAMS ((void));
384 #define obj_frob_symbol(S,P) coff_frob_symbol(S,&P)
385 #ifndef obj_adjust_symtab
386 #define obj_adjust_symtab() coff_adjust_symtab()
387 #endif
388 #define obj_frob_section(S) coff_frob_section (S)
389 #define obj_frob_file_after_relocs() coff_frob_file_after_relocs ()
391 extern symbolS *coff_last_function;
393 /* Forward the segment of a forwarded symbol, handle assignments that
394 just copy symbol values, etc. */
395 #ifndef OBJ_COPY_SYMBOL_ATTRIBUTES
396 #ifndef TE_I386AIX
397 #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest,src) \
398 (SF_GET_GET_SEGMENT (dest) \
399 ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
400 : 0)
401 #else
402 #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest,src) \
403 (SF_GET_GET_SEGMENT (dest) && S_GET_SEGMENT (dest) == SEG_UNKNOWN \
404 ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
405 : 0)
406 #endif
407 #endif
409 /* sanity check */
411 #ifdef TC_I960
412 #ifndef C_LEAFSTAT
413 hey ! Where is the C_LEAFSTAT definition ? i960 - coff support is depending on it.
414 #endif /* no C_LEAFSTAT */
415 #endif /* TC_I960 */
417 #else /* not BFD_ASSEMBLER */
419 #ifdef TC_A29K
420 /* Allow translate from aout relocs to coff relocs */
421 #define NO_RELOC 20
422 #define RELOC_32 1
423 #define RELOC_8 2
424 #define RELOC_CONST 3
425 #define RELOC_CONSTH 4
426 #define RELOC_JUMPTARG 5
427 #define RELOC_BASE22 6
428 #define RELOC_HI22 7
429 #define RELOC_LO10 8
430 #define RELOC_BASE13 9
431 #define RELOC_WDISP22 10
432 #define RELOC_WDISP30 11
433 #endif
435 extern const segT N_TYPE_seg[];
437 /* Magic number of paged executable. */
438 #define DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE 0x8300
440 /* SYMBOL TABLE */
442 /* Symbol table entry data type */
444 typedef struct
446 /* Basic symbol */
447 struct internal_syment ost_entry;
448 /* Auxiliary entry. */
449 union internal_auxent ost_auxent[OBJ_COFF_MAX_AUXENTRIES];
450 /* obj_coff internal use only flags */
451 unsigned int ost_flags;
452 } obj_symbol_type;
454 #ifndef DO_NOT_STRIP
455 #define DO_NOT_STRIP 0
456 #endif
457 /* Symbol table macros and constants */
459 /* Possible and usefull section number in symbol table
460 * The values of TEXT, DATA and BSS may not be portable.
463 #define C_ABS_SECTION N_ABS
464 #define C_UNDEF_SECTION N_UNDEF
465 #define C_DEBUG_SECTION N_DEBUG
466 #define C_NTV_SECTION N_TV
467 #define C_PTV_SECTION P_TV
468 #define C_REGISTER_SECTION 50
471 * Macros to extract information from a symbol table entry.
472 * This syntaxic indirection allows independence regarding a.out or coff.
473 * The argument (s) of all these macros is a pointer to a symbol table entry.
476 /* Predicates */
477 /* True if the symbol is external */
478 #define S_IS_EXTERNAL(s) ((s)->sy_symbol.ost_entry.n_scnum == C_UNDEF_SECTION)
479 /* True if symbol has been defined, ie :
480 section > 0 (DATA, TEXT or BSS)
481 section == 0 and value > 0 (external bss symbol) */
482 #define S_IS_DEFINED(s) \
483 ((s)->sy_symbol.ost_entry.n_scnum > C_UNDEF_SECTION \
484 || ((s)->sy_symbol.ost_entry.n_scnum == C_UNDEF_SECTION \
485 && S_GET_VALUE (s) > 0) \
486 || ((s)->sy_symbol.ost_entry.n_scnum == C_ABS_SECTION))
487 /* True if a debug special symbol entry */
488 #define S_IS_DEBUG(s) ((s)->sy_symbol.ost_entry.n_scnum == C_DEBUG_SECTION)
489 /* True if a symbol is local symbol name */
490 /* A symbol name whose name includes ^A is a gas internal pseudo symbol */
491 #define S_IS_LOCAL(s) \
492 ((s)->sy_symbol.ost_entry.n_scnum == C_REGISTER_SECTION \
493 || (S_LOCAL_NAME(s) && ! flag_keep_locals && ! S_IS_DEBUG (s)) \
494 || strchr (S_GET_NAME (s), '\001') != NULL \
495 || strchr (S_GET_NAME (s), '\002') != NULL \
496 || (flag_strip_local_absolute \
497 && !S_IS_EXTERNAL(s) \
498 && (s)->sy_symbol.ost_entry.n_scnum == C_ABS_SECTION))
499 /* True if a symbol is not defined in this file */
500 #define S_IS_EXTERN(s) ((s)->sy_symbol.ost_entry.n_scnum == 0 \
501 && S_GET_VALUE (s) == 0)
503 * True if a symbol can be multiply defined (bss symbols have this def
504 * though it is bad practice)
506 #define S_IS_COMMON(s) ((s)->sy_symbol.ost_entry.n_scnum == 0 \
507 && S_GET_VALUE (s) != 0)
508 /* True if a symbol name is in the string table, i.e. its length is > 8. */
509 #define S_IS_STRING(s) (strlen(S_GET_NAME(s)) > 8 ? 1 : 0)
511 /* True if a symbol is defined as weak. */
512 #ifdef TE_PE
513 #define S_IS_WEAK(s) \
514 ((s)->sy_symbol.ost_entry.n_sclass == C_NT_WEAK \
515 || (s)->sy_symbol.ost_entry.n_sclass == C_WEAKEXT)
516 #else
517 #define S_IS_WEAK(s) \
518 ((s)->sy_symbol.ost_entry.n_sclass == C_WEAKEXT)
519 #endif
521 /* Accessors */
522 /* The name of the symbol */
523 #define S_GET_NAME(s) ((char*) (s)->sy_symbol.ost_entry.n_offset)
524 /* The pointer to the string table */
525 #define S_GET_OFFSET(s) ((s)->sy_symbol.ost_entry.n_offset)
526 /* The numeric value of the segment */
527 #define S_GET_SEGMENT(s) s_get_segment(s)
528 /* The data type */
529 #define S_GET_DATA_TYPE(s) ((s)->sy_symbol.ost_entry.n_type)
530 /* The storage class */
531 #define S_GET_STORAGE_CLASS(s) ((s)->sy_symbol.ost_entry.n_sclass)
532 /* The number of auxiliary entries */
533 #define S_GET_NUMBER_AUXILIARY(s) ((s)->sy_symbol.ost_entry.n_numaux)
535 /* Modifiers */
536 /* Set the name of the symbol */
537 #define S_SET_NAME(s,v) ((s)->sy_symbol.ost_entry.n_offset = (unsigned long) (v))
538 /* Set the offset of the symbol */
539 #define S_SET_OFFSET(s,v) ((s)->sy_symbol.ost_entry.n_offset = (v))
540 /* The numeric value of the segment */
541 #define S_SET_SEGMENT(s,v) ((s)->sy_symbol.ost_entry.n_scnum = SEGMENT_TO_SYMBOL_TYPE(v))
542 /* The data type */
543 #define S_SET_DATA_TYPE(s,v) ((s)->sy_symbol.ost_entry.n_type = (v))
544 /* The storage class */
545 #define S_SET_STORAGE_CLASS(s,v) ((s)->sy_symbol.ost_entry.n_sclass = (v))
546 /* The number of auxiliary entries */
547 #define S_SET_NUMBER_AUXILIARY(s,v) ((s)->sy_symbol.ost_entry.n_numaux = (v))
549 /* Additional modifiers */
550 /* The symbol is external (does not mean undefined) */
551 #define S_SET_EXTERNAL(s) { S_SET_STORAGE_CLASS(s, C_EXT) ; SF_CLEAR_LOCAL(s); }
553 /* Auxiliary entry macros. SA_ stands for symbol auxiliary */
554 /* Omit the tv related fields */
555 /* Accessors */
556 #define SYM_AUXENT(S) (&(S)->sy_symbol.ost_auxent[0])
558 #define SA_GET_SYM_TAGNDX(s) (SYM_AUXENT (s)->x_sym.x_tagndx.l)
559 #define SA_GET_SYM_LNNO(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno)
560 #define SA_GET_SYM_SIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size)
561 #define SA_GET_SYM_FSIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize)
562 #define SA_GET_SYM_LNNOPTR(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr)
563 #define SA_GET_SYM_ENDNDX(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx.l)
564 #define SA_GET_SYM_DIMEN(s,i) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)])
565 #define SA_GET_FILE_FNAME(s) (SYM_AUXENT (s)->x_file.x_fname)
566 #define SA_GET_FILE_FNAME_OFFSET(s) (SYM_AUXENT (s)->x_file.x_n.x_offset)
567 #define SA_GET_FILE_FNAME_ZEROS(s) (SYM_AUXENT (s)->x_file.x_n.x_zeroes)
568 #define SA_GET_SCN_SCNLEN(s) (SYM_AUXENT (s)->x_scn.x_scnlen)
569 #define SA_GET_SCN_NRELOC(s) (SYM_AUXENT (s)->x_scn.x_nreloc)
570 #define SA_GET_SCN_NLINNO(s) (SYM_AUXENT (s)->x_scn.x_nlinno)
572 /* Modifiers */
573 #define SA_SET_SYM_TAGNDX(s,v) (SYM_AUXENT (s)->x_sym.x_tagndx.l=(v))
574 #define SA_SET_SYM_LNNO(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno=(v))
575 #define SA_SET_SYM_SIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size=(v))
576 #define SA_SET_SYM_FSIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize=(v))
577 #define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr=(v))
578 #define SA_SET_SYM_ENDNDX(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx.l=(v))
579 #define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)]=(v))
580 #define SA_SET_FILE_FNAME(s,v) strncpy(SYM_AUXENT (s)->x_file.x_fname,(v),FILNMLEN)
581 #define SA_SET_FILE_FNAME_OFFSET(s,v) (SYM_AUXENT (s)->x_file.x_n.x_offset=(v))
582 #define SA_SET_FILE_FNAME_ZEROS(s,v) (SYM_AUXENT (s)->x_file.x_n.x_zeroes=(v))
583 #define SA_SET_SCN_SCNLEN(s,v) (SYM_AUXENT (s)->x_scn.x_scnlen=(v))
584 #define SA_SET_SCN_NRELOC(s,v) (SYM_AUXENT (s)->x_scn.x_nreloc=(v))
585 #define SA_SET_SCN_NLINNO(s,v) (SYM_AUXENT (s)->x_scn.x_nlinno=(v))
588 * Internal use only definitions. SF_ stands for symbol flags.
590 * These values can be assigned to sy_symbol.ost_flags field of a symbolS.
592 * You'll break i960 if you shift the SYSPROC bits anywhere else. for
593 * more on the balname/callname hack, see tc-i960.h. b.out is done
594 * differently.
597 #define SF_I960_MASK (0x000001ff) /* Bits 0-8 are used by the i960 port. */
598 #define SF_SYSPROC (0x0000003f) /* bits 0-5 are used to store the sysproc number */
599 #define SF_IS_SYSPROC (0x00000040) /* bit 6 marks symbols that are sysprocs */
600 #define SF_BALNAME (0x00000080) /* bit 7 marks BALNAME symbols */
601 #define SF_CALLNAME (0x00000100) /* bit 8 marks CALLNAME symbols */
603 #define SF_NORMAL_MASK (0x0000ffff) /* bits 12-15 are general purpose. */
605 #define SF_STATICS (0x00001000) /* Mark the .text & all symbols */
606 #define SF_DEFINED (0x00002000) /* Symbol is defined in this file */
607 #define SF_STRING (0x00004000) /* Symbol name length > 8 */
608 #define SF_LOCAL (0x00008000) /* Symbol must not be emitted */
610 #define SF_DEBUG_MASK (0xffff0000) /* bits 16-31 are debug info */
612 #define SF_FUNCTION (0x00010000) /* The symbol is a function */
613 #define SF_PROCESS (0x00020000) /* Process symbol before write */
614 #define SF_TAGGED (0x00040000) /* Is associated with a tag */
615 #define SF_TAG (0x00080000) /* Is a tag */
616 #define SF_DEBUG (0x00100000) /* Is in debug or abs section */
617 #define SF_GET_SEGMENT (0x00200000) /* Get the section of the forward symbol. */
618 #define SF_ADJ_LNNOPTR (0x00400000) /* Has a lnnoptr */
619 /* All other bits are unused. */
621 /* Accessors */
622 #define SF_GET(s) ((s)->sy_symbol.ost_flags)
623 #define SF_GET_NORMAL_FIELD(s) (SF_GET (s) & SF_NORMAL_MASK)
624 #define SF_GET_DEBUG_FIELD(s) (SF_GET (s) & SF_DEBUG_MASK)
625 #define SF_GET_FILE(s) (SF_GET (s) & SF_FILE)
626 #define SF_GET_STATICS(s) (SF_GET (s) & SF_STATICS)
627 #define SF_GET_DEFINED(s) (SF_GET (s) & SF_DEFINED)
628 #define SF_GET_STRING(s) (SF_GET (s) & SF_STRING)
629 #define SF_GET_LOCAL(s) (SF_GET (s) & SF_LOCAL)
630 #define SF_GET_FUNCTION(s) (SF_GET (s) & SF_FUNCTION)
631 #define SF_GET_PROCESS(s) (SF_GET (s) & SF_PROCESS)
632 #define SF_GET_DEBUG(s) (SF_GET (s) & SF_DEBUG)
633 #define SF_GET_TAGGED(s) (SF_GET (s) & SF_TAGGED)
634 #define SF_GET_TAG(s) (SF_GET (s) & SF_TAG)
635 #define SF_GET_GET_SEGMENT(s) (SF_GET (s) & SF_GET_SEGMENT)
636 #define SF_GET_ADJ_LNNOPTR(s) (SF_GET (s) & SF_ADJ_LNNOPTR)
637 #define SF_GET_I960(s) (SF_GET (s) & SF_I960_MASK) /* used by i960 */
638 #define SF_GET_BALNAME(s) (SF_GET (s) & SF_BALNAME) /* used by i960 */
639 #define SF_GET_CALLNAME(s) (SF_GET (s) & SF_CALLNAME) /* used by i960 */
640 #define SF_GET_IS_SYSPROC(s) (SF_GET (s) & SF_IS_SYSPROC) /* used by i960 */
641 #define SF_GET_SYSPROC(s) (SF_GET (s) & SF_SYSPROC) /* used by i960 */
643 /* Modifiers */
644 #define SF_SET(s,v) (SF_GET (s) = (v))
645 #define SF_SET_NORMAL_FIELD(s,v) (SF_GET (s) |= ((v) & SF_NORMAL_MASK))
646 #define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK))
647 #define SF_SET_FILE(s) (SF_GET (s) |= SF_FILE)
648 #define SF_SET_STATICS(s) (SF_GET (s) |= SF_STATICS)
649 #define SF_SET_DEFINED(s) (SF_GET (s) |= SF_DEFINED)
650 #define SF_SET_STRING(s) (SF_GET (s) |= SF_STRING)
651 #define SF_SET_LOCAL(s) (SF_GET (s) |= SF_LOCAL)
652 #define SF_CLEAR_LOCAL(s) (SF_GET (s) &= ~SF_LOCAL)
653 #define SF_SET_FUNCTION(s) (SF_GET (s) |= SF_FUNCTION)
654 #define SF_SET_PROCESS(s) (SF_GET (s) |= SF_PROCESS)
655 #define SF_SET_DEBUG(s) (SF_GET (s) |= SF_DEBUG)
656 #define SF_SET_TAGGED(s) (SF_GET (s) |= SF_TAGGED)
657 #define SF_SET_TAG(s) (SF_GET (s) |= SF_TAG)
658 #define SF_SET_GET_SEGMENT(s) (SF_GET (s) |= SF_GET_SEGMENT)
659 #define SF_SET_ADJ_LNNOPTR(s) (SF_GET (s) |= SF_ADJ_LNNOPTR)
660 #define SF_SET_I960(s,v) (SF_GET (s) |= ((v) & SF_I960_MASK)) /* used by i960 */
661 #define SF_SET_BALNAME(s) (SF_GET (s) |= SF_BALNAME) /* used by i960 */
662 #define SF_SET_CALLNAME(s) (SF_GET (s) |= SF_CALLNAME) /* used by i960 */
663 #define SF_SET_IS_SYSPROC(s) (SF_GET (s) |= SF_IS_SYSPROC) /* used by i960 */
664 #define SF_SET_SYSPROC(s,v) (SF_GET (s) |= ((v) & SF_SYSPROC)) /* used by i960 */
666 /* File header macro and type definition */
669 * File position calculators. Beware to use them when all the
670 * appropriate fields are set in the header.
673 #ifdef OBJ_COFF_OMIT_OPTIONAL_HEADER
674 #define OBJ_COFF_AOUTHDRSZ (0)
675 #else
676 #define OBJ_COFF_AOUTHDRSZ (AOUTHDRSZ)
677 #endif /* OBJ_COFF_OMIT_OPTIONAL_HEADER */
679 #define H_GET_FILE_SIZE(h) \
680 (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
681 H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
682 H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h) + \
683 H_GET_RELOCATION_SIZE(h) + H_GET_LINENO_SIZE(h) + \
684 H_GET_SYMBOL_TABLE_SIZE(h) + \
685 (h)->string_table_size)
686 #define H_GET_TEXT_FILE_OFFSET(h) \
687 (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
688 H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ)
689 #define H_GET_DATA_FILE_OFFSET(h) \
690 (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
691 H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
692 H_GET_TEXT_SIZE(h))
693 #define H_GET_BSS_FILE_OFFSET(h) 0
694 #define H_GET_RELOCATION_FILE_OFFSET(h) \
695 (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
696 H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
697 H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h))
698 #define H_GET_LINENO_FILE_OFFSET(h) \
699 (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
700 H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
701 H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h) + \
702 H_GET_RELOCATION_SIZE(h))
703 #define H_GET_SYMBOL_TABLE_FILE_OFFSET(h) \
704 (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
705 H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
706 H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h) + \
707 H_GET_RELOCATION_SIZE(h) + H_GET_LINENO_SIZE(h))
709 /* Accessors */
710 /* aouthdr */
711 #define H_GET_MAGIC_NUMBER(h) ((h)->aouthdr.magic)
712 #define H_GET_VERSION_STAMP(h) ((h)->aouthdr.vstamp)
713 #define H_GET_TEXT_SIZE(h) ((h)->aouthdr.tsize)
714 #define H_GET_DATA_SIZE(h) ((h)->aouthdr.dsize)
715 #define H_GET_BSS_SIZE(h) ((h)->aouthdr.bsize)
716 #define H_GET_ENTRY_POINT(h) ((h)->aouthdr.entry)
717 #define H_GET_TEXT_START(h) ((h)->aouthdr.text_start)
718 #define H_GET_DATA_START(h) ((h)->aouthdr.data_start)
719 /* filehdr */
720 #define H_GET_FILE_MAGIC_NUMBER(h) ((h)->filehdr.f_magic)
721 #define H_GET_NUMBER_OF_SECTIONS(h) ((h)->filehdr.f_nscns)
722 #define H_GET_TIME_STAMP(h) ((h)->filehdr.f_timdat)
723 #define H_GET_SYMBOL_TABLE_POINTER(h) ((h)->filehdr.f_symptr)
724 #define H_GET_SYMBOL_COUNT(h) ((h)->filehdr.f_nsyms)
725 #define H_GET_SYMBOL_TABLE_SIZE(h) (H_GET_SYMBOL_COUNT(h) * SYMESZ)
726 #define H_GET_SIZEOF_OPTIONAL_HEADER(h) ((h)->filehdr.f_opthdr)
727 #define H_GET_FLAGS(h) ((h)->filehdr.f_flags)
728 /* Extra fields to achieve bsd a.out compatibility and for convenience */
729 #define H_GET_RELOCATION_SIZE(h) ((h)->relocation_size)
730 #define H_GET_STRING_SIZE(h) ((h)->string_table_size)
731 #define H_GET_LINENO_SIZE(h) ((h)->lineno_size)
733 #ifndef OBJ_COFF_OMIT_OPTIONAL_HEADER
734 #define H_GET_HEADER_SIZE(h) (sizeof (FILHDR) \
735 + sizeof (AOUTHDR)\
736 + (H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ))
737 #else /* OBJ_COFF_OMIT_OPTIONAL_HEADER */
738 #define H_GET_HEADER_SIZE(h) (sizeof (FILHDR) \
739 + (H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ))
740 #endif /* OBJ_COFF_OMIT_OPTIONAL_HEADER */
742 #define H_GET_TEXT_RELOCATION_SIZE(h) (text_section_header.s_nreloc * RELSZ)
743 #define H_GET_DATA_RELOCATION_SIZE(h) (data_section_header.s_nreloc * RELSZ)
745 /* Modifiers */
746 /* aouthdr */
747 #define H_SET_MAGIC_NUMBER(h,v) ((h)->aouthdr.magic = (v))
748 #define H_SET_VERSION_STAMP(h,v) ((h)->aouthdr.vstamp = (v))
749 #define H_SET_TEXT_SIZE(h,v) ((h)->aouthdr.tsize = (v))
750 #define H_SET_DATA_SIZE(h,v) ((h)->aouthdr.dsize = (v))
751 #define H_SET_BSS_SIZE(h,v) ((h)->aouthdr.bsize = (v))
752 #define H_SET_ENTRY_POINT(h,v) ((h)->aouthdr.entry = (v))
753 #define H_SET_TEXT_START(h,v) ((h)->aouthdr.text_start = (v))
754 #define H_SET_DATA_START(h,v) ((h)->aouthdr.data_start = (v))
755 /* filehdr */
756 #define H_SET_FILE_MAGIC_NUMBER(h,v) ((h)->filehdr.f_magic = (v))
757 #define H_SET_NUMBER_OF_SECTIONS(h,v) ((h)->filehdr.f_nscns = (v))
758 #define H_SET_TIME_STAMP(h,v) ((h)->filehdr.f_timdat = (v))
759 #define H_SET_SYMBOL_TABLE_POINTER(h,v) ((h)->filehdr.f_symptr = (v))
760 #define H_SET_SYMBOL_TABLE_SIZE(h,v) ((h)->filehdr.f_nsyms = (v))
761 #define H_SET_SIZEOF_OPTIONAL_HEADER(h,v) ((h)->filehdr.f_opthdr = (v))
762 #define H_SET_FLAGS(h,v) ((h)->filehdr.f_flags = (v))
763 /* Extra fields to achieve bsd a.out compatibility and for convinience */
764 #define H_SET_RELOCATION_SIZE(h,t,d) ((h)->relocation_size = (t)+(d))
765 #define H_SET_STRING_SIZE(h,v) ((h)->string_table_size = (v))
766 #define H_SET_LINENO_SIZE(h,v) ((h)->lineno_size = (v))
768 /* Segment flipping */
770 typedef struct
772 struct internal_aouthdr aouthdr; /* a.out header */
773 struct internal_filehdr filehdr; /* File header, not machine dep. */
774 long string_table_size; /* names + '\0' + sizeof (int) */
775 long relocation_size; /* Cumulated size of relocation
776 information for all sections in
777 bytes. */
778 long lineno_size; /* Size of the line number information
779 table in bytes */
780 } object_headers;
782 struct lineno_list
784 struct bfd_internal_lineno line;
785 char *frag; /* Frag to which the line number is related */
786 struct lineno_list *next; /* Forward chain pointer */
789 #define obj_segment_name(i) (segment_info[(int) (i)].scnhdr.s_name)
791 #define obj_add_segment(s) obj_coff_add_segment (s)
793 extern segT obj_coff_add_segment PARAMS ((const char *));
795 extern void obj_coff_section PARAMS ((int));
797 extern void c_dot_file_symbol PARAMS ((char *filename));
798 #define obj_app_file c_dot_file_symbol
799 extern void obj_extra_stuff PARAMS ((object_headers * headers));
801 extern segT s_get_segment PARAMS ((symbolS *ptr));
803 extern void c_section_header PARAMS ((struct internal_scnhdr * header,
804 char *name,
805 long core_address,
806 long size,
807 long data_ptr,
808 long reloc_ptr,
809 long lineno_ptr,
810 long reloc_number,
811 long lineno_number,
812 long alignment));
814 #ifndef tc_coff_symbol_emit_hook
815 void tc_coff_symbol_emit_hook PARAMS ((symbolS *));
816 #endif
818 /* sanity check */
820 #ifdef TC_I960
821 #ifndef C_LEAFSTAT
822 hey ! Where is the C_LEAFSTAT definition ? i960 - coff support is depending on it.
823 #endif /* no C_LEAFSTAT */
824 #endif /* TC_I960 */
825 extern struct internal_scnhdr data_section_header;
826 extern struct internal_scnhdr text_section_header;
828 /* Forward the segment of a forwarded symbol. */
829 #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest,src) \
830 (SF_GET_GET_SEGMENT (dest) \
831 ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
832 : 0)
834 #ifdef TE_PE
835 #define obj_handle_link_once(t) obj_coff_pe_handle_link_once (t)
836 extern void obj_coff_pe_handle_link_once ();
837 #endif
839 #endif /* not BFD_ASSEMBLER */
841 extern const pseudo_typeS coff_pseudo_table[];
843 #ifndef obj_pop_insert
844 #define obj_pop_insert() pop_insert (coff_pseudo_table)
845 #endif
847 /* In COFF, if a symbol is defined using .def/.val SYM/.endef, it's OK
848 to redefine the symbol later on. This can happen if C symbols use
849 a prefix, and a symbol is defined both with and without the prefix,
850 as in start/_start/__start in gcc/libgcc1-test.c. */
851 #define RESOLVE_SYMBOL_REDEFINITION(sym) \
852 (SF_GET_GET_SEGMENT (sym) \
853 ? (sym->sy_frag = frag_now, \
854 S_SET_VALUE (sym, frag_now_fix ()), \
855 S_SET_SEGMENT (sym, now_seg), \
856 0) \
857 : 0)
859 /* Stabs in a coff file go into their own section. */
860 #define SEPARATE_STAB_SECTIONS 1
862 /* We need 12 bytes at the start of the section to hold some initial
863 information. */
864 extern void obj_coff_init_stab_section PARAMS ((segT));
865 #define INIT_STAB_SECTION(seg) obj_coff_init_stab_section (seg)
867 /* Store the number of relocations in the section aux entry. */
868 #define SET_SECTION_RELOCS(sec, relocs, n) \
869 SA_SET_SCN_NRELOC (section_symbol (sec), n)
871 #endif /* OBJ_FORMAT_H */