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[/] [openrisc/] [trunk/] [gnu-old/] [binutils-2.18.50/] [gas/] [config/] [obj-coff.h] - Blame information for rev 816

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1 38 julius
/* coff object file format
2
   Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3
   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
4
   Free Software Foundation, Inc.
5
 
6
   This file is part of GAS.
7
 
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 3, or (at your option)
11
   any later version.
12
 
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.
17
 
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, 51 Franklin Street - Fifth Floor, Boston, MA
21
   02110-1301, USA.  */
22
 
23
#ifndef OBJ_FORMAT_H
24
#define OBJ_FORMAT_H
25
 
26
#define OBJ_COFF 1
27
 
28
#include "targ-cpu.h"
29
 
30
/* This internal_lineno crap is to stop namespace pollution from the
31
   bfd internal coff headerfile.  */
32
#define internal_lineno bfd_internal_lineno
33
#include "coff/internal.h"
34
#undef internal_lineno
35
 
36
/* CPU-specific setup:  */
37
 
38
#ifdef TC_ARM
39
#include "coff/arm.h"
40
#ifndef TARGET_FORMAT
41
#define TARGET_FORMAT "coff-arm"
42
#endif
43
#endif
44
 
45
#ifdef TC_PPC
46
#ifdef TE_PE
47
#include "coff/powerpc.h"
48
#else
49
#include "coff/rs6000.h"
50
#endif
51
#endif
52
 
53
#ifdef TC_SPARC
54
#include "coff/sparc.h"
55
#endif
56
 
57
#ifdef TC_I386
58
#ifndef TE_PEP
59
#include "coff/x86_64.h"
60
#else
61
#include "coff/i386.h"
62
#endif
63
 
64
#ifdef TE_PE
65
#ifdef TE_PEP
66
extern const char *i386_target_format (void);
67
#define TARGET_FORMAT i386_target_format ()
68
#define COFF_TARGET_FORMAT "pe-x86-64"
69
#else
70
#define TARGET_FORMAT "pe-i386"
71
#endif
72
#endif
73
 
74
#ifndef TARGET_FORMAT
75
#ifdef TE_PEP
76
#define TARGET_FORMAT "coff-x86-64"
77
#else
78
#define TARGET_FORMAT "coff-i386"
79
#endif
80
#endif
81
#endif
82
 
83
#ifdef TC_M68K
84
#include "coff/m68k.h"
85
#ifndef TARGET_FORMAT
86
#define TARGET_FORMAT "coff-m68k"
87
#endif
88
#endif
89
 
90
#ifdef TC_OR32
91
#include "coff/or32.h"
92
#define TARGET_FORMAT "coff-or32-big"
93
#endif
94
 
95
#ifdef TC_I960
96
#include "coff/i960.h"
97
#define TARGET_FORMAT "coff-Intel-little"
98
#endif
99
 
100
#ifdef TC_Z80
101
#include "coff/z80.h"
102
#define TARGET_FORMAT "coff-z80"
103
#endif
104
 
105
#ifdef TC_Z8K
106
#include "coff/z8k.h"
107
#define TARGET_FORMAT "coff-z8k"
108
#endif
109
 
110
#ifdef TC_H8300
111
#include "coff/h8300.h"
112
#define TARGET_FORMAT "coff-h8300"
113
#endif
114
 
115
#ifdef TC_H8500
116
#include "coff/h8500.h"
117
#define TARGET_FORMAT "coff-h8500"
118
#endif
119
 
120
#ifdef TC_MAXQ20
121
#include "coff/maxq.h"
122
#define TARGET_FORMAT "coff-maxq"
123
#endif
124
 
125
#ifdef TC_SH
126
 
127
#ifdef TE_PE
128
#define COFF_WITH_PE
129
#endif
130
 
131
#include "coff/sh.h"
132
 
133
#ifdef TE_PE
134
#define TARGET_FORMAT "pe-shl"
135
#else
136
 
137
#define TARGET_FORMAT                                   \
138
  (!target_big_endian                                   \
139
   ? (sh_small ? "coff-shl-small" : "coff-shl")         \
140
   : (sh_small ? "coff-sh-small" : "coff-sh"))
141
 
142
#endif
143
#endif
144
 
145
#ifdef TC_MIPS
146
#define COFF_WITH_PE
147
#include "coff/mipspe.h"
148
#undef  TARGET_FORMAT
149
#define TARGET_FORMAT "pe-mips"
150
#endif
151
 
152
#ifdef TC_TIC30
153
#include "coff/tic30.h"
154
#define TARGET_FORMAT "coff-tic30"
155
#endif
156
 
157
#ifdef TC_TIC4X
158
#include "coff/tic4x.h"
159
#define TARGET_FORMAT "coff2-tic4x"
160
#endif
161
 
162
#ifdef TC_TIC54X
163
#include "coff/tic54x.h"
164
#define TARGET_FORMAT "coff1-c54x"
165
#endif
166
 
167
#ifdef TC_MCORE
168
#include "coff/mcore.h"
169
#ifndef TARGET_FORMAT
170
#define TARGET_FORMAT "pe-mcore"
171
#endif
172
#endif
173
 
174
#ifdef TE_PE
175
/* PE weak symbols need USE_UNIQUE.  */
176
#define USE_UNIQUE 1
177
 
178
#define obj_set_weak_hook pecoff_obj_set_weak_hook
179
#define obj_clear_weak_hook pecoff_obj_clear_weak_hook
180
#endif
181
 
182
#ifndef OBJ_COFF_MAX_AUXENTRIES
183
#define OBJ_COFF_MAX_AUXENTRIES 1
184
#endif
185
 
186
#define obj_symbol_new_hook coff_obj_symbol_new_hook
187
#define obj_symbol_clone_hook coff_obj_symbol_clone_hook
188
#define obj_read_begin_hook coff_obj_read_begin_hook
189
 
190
#include "bfd/libcoff.h"
191
 
192
#define OUTPUT_FLAVOR bfd_target_coff_flavour
193
 
194
/* Alter the field names, for now, until we've fixed up the other
195
   references to use the new name.  */
196
#ifdef TC_I960
197
#define TC_SYMFIELD_TYPE        symbolS *
198
#define sy_tc                   bal
199
#endif
200
 
201
#define OBJ_SYMFIELD_TYPE       unsigned long
202
#define sy_obj                  sy_flags
203
 
204
/* We can't use the predefined section symbols in bfd/section.c, as
205
   COFF symbols have extra fields.  See bfd/libcoff.h:coff_symbol_type.  */
206
#ifndef obj_sec_sym_ok_for_reloc
207
#define obj_sec_sym_ok_for_reloc(SEC)   ((SEC)->owner != 0)
208
#endif
209
 
210
#define SYM_AUXENT(S) \
211
  (&coffsymbol (symbol_get_bfdsym (S))->native[1].u.auxent)
212
#define SYM_AUXINFO(S) \
213
  (&coffsymbol (symbol_get_bfdsym (S))->native[1])
214
 
215
/* The number of auxiliary entries.  */
216
#define S_GET_NUMBER_AUXILIARY(s) \
217
  (coffsymbol (symbol_get_bfdsym (s))->native->u.syment.n_numaux)
218
/* The number of auxiliary entries.  */
219
#define S_SET_NUMBER_AUXILIARY(s, v)    (S_GET_NUMBER_AUXILIARY (s) = (v))
220
 
221
/* True if a symbol name is in the string table, i.e. its length is > 8.  */
222
#define S_IS_STRING(s)          (strlen (S_GET_NAME (s)) > 8 ? 1 : 0)
223
 
224
/* Auxiliary entry macros. SA_ stands for symbol auxiliary.  */
225
/* Omit the tv related fields.  */
226
/* Accessors.  */
227
 
228
#define SA_GET_SYM_TAGNDX(s)    (SYM_AUXENT (s)->x_sym.x_tagndx.l)
229
#define SA_GET_SYM_LNNO(s)      (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno)
230
#define SA_GET_SYM_SIZE(s)      (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size)
231
#define SA_GET_SYM_FSIZE(s)     (SYM_AUXENT (s)->x_sym.x_misc.x_fsize)
232
#define SA_GET_SYM_LNNOPTR(s)   (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr)
233
#define SA_GET_SYM_ENDNDX(s)    (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx)
234
#define SA_GET_SYM_DIMEN(s,i)   (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)])
235
#define SA_GET_FILE_FNAME(s)    (SYM_AUXENT (s)->x_file.x_fname)
236
#define SA_GET_SCN_SCNLEN(s)    (SYM_AUXENT (s)->x_scn.x_scnlen)
237
#define SA_GET_SCN_NRELOC(s)    (SYM_AUXENT (s)->x_scn.x_nreloc)
238
#define SA_GET_SCN_NLINNO(s)    (SYM_AUXENT (s)->x_scn.x_nlinno)
239
 
240
#define SA_SET_SYM_LNNO(s,v)    (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno = (v))
241
#define SA_SET_SYM_SIZE(s,v)    (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size = (v))
242
#define SA_SET_SYM_FSIZE(s,v)   (SYM_AUXENT (s)->x_sym.x_misc.x_fsize = (v))
243
#define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr = (v))
244
#define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)] = (v))
245
#define SA_SET_FILE_FNAME(s,v)  strncpy (SYM_AUXENT (s)->x_file.x_fname, (v), FILNMLEN)
246
#define SA_SET_SCN_SCNLEN(s,v)  (SYM_AUXENT (s)->x_scn.x_scnlen = (v))
247
#define SA_SET_SCN_NRELOC(s,v)  (SYM_AUXENT (s)->x_scn.x_nreloc = (v))
248
#define SA_SET_SCN_NLINNO(s,v)  (SYM_AUXENT (s)->x_scn.x_nlinno = (v))
249
 
250
/* Internal use only definitions. SF_ stands for symbol flags.
251
 
252
   These values can be assigned to sy_symbol.ost_flags field of a symbolS.
253
 
254
   You'll break i960 if you shift the SYSPROC bits anywhere else.  for
255
   more on the balname/callname hack, see tc-i960.h.  b.out is done
256
   differently.  */
257
 
258
#define SF_I960_MASK    0x000001ff      /* Bits 0-8 are used by the i960 port.  */
259
#define SF_SYSPROC      0x0000003f      /* bits 0-5 are used to store the sysproc number.  */
260
#define SF_IS_SYSPROC   0x00000040      /* bit 6 marks symbols that are sysprocs.  */
261
#define SF_BALNAME      0x00000080      /* bit 7 marks BALNAME symbols.  */
262
#define SF_CALLNAME     0x00000100      /* bit 8 marks CALLNAME symbols.  */
263
 
264
#define SF_NORMAL_MASK  0x0000ffff      /* bits 12-15 are general purpose.  */
265
 
266
#define SF_STATICS      0x00001000      /* Mark the .text & all symbols.  */
267
#define SF_DEFINED      0x00002000      /* Symbol is defined in this file.  */
268
#define SF_STRING       0x00004000      /* Symbol name length > 8.  */
269
#define SF_LOCAL        0x00008000      /* Symbol must not be emitted.  */
270
 
271
#define SF_DEBUG_MASK   0xffff0000      /* bits 16-31 are debug info.  */
272
 
273
#define SF_FUNCTION     0x00010000      /* The symbol is a function.  */
274
#define SF_PROCESS      0x00020000      /* Process symbol before write.  */
275
#define SF_TAGGED       0x00040000      /* Is associated with a tag.  */
276
#define SF_TAG          0x00080000      /* Is a tag.  */
277
#define SF_DEBUG        0x00100000      /* Is in debug or abs section.  */
278
#define SF_GET_SEGMENT  0x00200000      /* Get the section of the forward symbol.  */
279
/* All other bits are unused.  */
280
 
281
/* Accessors.  */
282
#define SF_GET(s)               (* symbol_get_obj (s))
283
#define SF_GET_DEBUG(s)         (symbol_get_bfdsym (s)->flags & BSF_DEBUGGING)
284
#define SF_SET_DEBUG(s)         (symbol_get_bfdsym (s)->flags |= BSF_DEBUGGING)
285
#define SF_GET_NORMAL_FIELD(s)  (SF_GET (s) & SF_NORMAL_MASK)
286
#define SF_GET_DEBUG_FIELD(s)   (SF_GET (s) & SF_DEBUG_MASK)
287
#define SF_GET_FILE(s)          (SF_GET (s) & SF_FILE)
288
#define SF_GET_STATICS(s)       (SF_GET (s) & SF_STATICS)
289
#define SF_GET_DEFINED(s)       (SF_GET (s) & SF_DEFINED)
290
#define SF_GET_STRING(s)        (SF_GET (s) & SF_STRING)
291
#define SF_GET_LOCAL(s)         (SF_GET (s) & SF_LOCAL)
292
#define SF_GET_FUNCTION(s)      (SF_GET (s) & SF_FUNCTION)
293
#define SF_GET_PROCESS(s)       (SF_GET (s) & SF_PROCESS)
294
#define SF_GET_TAGGED(s)        (SF_GET (s) & SF_TAGGED)
295
#define SF_GET_TAG(s)           (SF_GET (s) & SF_TAG)
296
#define SF_GET_GET_SEGMENT(s)   (SF_GET (s) & SF_GET_SEGMENT)
297
#define SF_GET_I960(s)          (SF_GET (s) & SF_I960_MASK)     /* Used by i960.  */
298
#define SF_GET_BALNAME(s)       (SF_GET (s) & SF_BALNAME)       /* Used by i960.  */
299
#define SF_GET_CALLNAME(s)      (SF_GET (s) & SF_CALLNAME)      /* Used by i960.  */
300
#define SF_GET_IS_SYSPROC(s)    (SF_GET (s) & SF_IS_SYSPROC)    /* Used by i960.  */
301
#define SF_GET_SYSPROC(s)       (SF_GET (s) & SF_SYSPROC)       /* Used by i960.  */
302
 
303
/* Modifiers.  */
304
#define SF_SET(s,v)             (SF_GET (s) = (v))
305
#define SF_SET_NORMAL_FIELD(s,v)(SF_GET (s) |= ((v) & SF_NORMAL_MASK))
306
#define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK))
307
#define SF_SET_FILE(s)          (SF_GET (s) |= SF_FILE)
308
#define SF_SET_STATICS(s)       (SF_GET (s) |= SF_STATICS)
309
#define SF_SET_DEFINED(s)       (SF_GET (s) |= SF_DEFINED)
310
#define SF_SET_STRING(s)        (SF_GET (s) |= SF_STRING)
311
#define SF_SET_LOCAL(s)         (SF_GET (s) |= SF_LOCAL)
312
#define SF_CLEAR_LOCAL(s)       (SF_GET (s) &= ~SF_LOCAL)
313
#define SF_SET_FUNCTION(s)      (SF_GET (s) |= SF_FUNCTION)
314
#define SF_SET_PROCESS(s)       (SF_GET (s) |= SF_PROCESS)
315
#define SF_SET_TAGGED(s)        (SF_GET (s) |= SF_TAGGED)
316
#define SF_SET_TAG(s)           (SF_GET (s) |= SF_TAG)
317
#define SF_SET_GET_SEGMENT(s)   (SF_GET (s) |= SF_GET_SEGMENT)
318
#define SF_SET_I960(s,v)        (SF_GET (s) |= ((v) & SF_I960_MASK))    /* Used by i960.  */
319
#define SF_SET_BALNAME(s)       (SF_GET (s) |= SF_BALNAME)              /* Used by i960.  */
320
#define SF_SET_CALLNAME(s)      (SF_GET (s) |= SF_CALLNAME)             /* Used by i960.  */
321
#define SF_SET_IS_SYSPROC(s)    (SF_GET (s) |= SF_IS_SYSPROC)           /* Used by i960.  */
322
#define SF_SET_SYSPROC(s,v)     (SF_GET (s) |= ((v) & SF_SYSPROC))      /* Used by i960.  */
323
 
324
 
325
/*  Line number handling.  */
326
extern int text_lineno_number;
327
extern int coff_line_base;
328
extern int coff_n_line_nos;
329
extern symbolS *coff_last_function;
330
 
331
#define obj_emit_lineno(WHERE, LINE, FILE_START)        abort ()
332
#define obj_app_file(name, app)      c_dot_file_symbol (name, app)
333
#define obj_frob_symbol(S,P)         coff_frob_symbol (S, & P)
334
#define obj_frob_section(S)          coff_frob_section (S)
335
#define obj_frob_file_after_relocs() coff_frob_file_after_relocs ()
336
#ifndef obj_adjust_symtab
337
#define obj_adjust_symtab()          coff_adjust_symtab ()
338
#endif
339
 
340
/* Forward the segment of a forwarded symbol, handle assignments that
341
   just copy symbol values, etc.  */
342
#ifndef OBJ_COPY_SYMBOL_ATTRIBUTES
343
#ifndef TE_I386AIX
344
#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \
345
  (SF_GET_GET_SEGMENT (dest) \
346
   ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
347
   : 0)
348
#else
349
#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \
350
  (SF_GET_GET_SEGMENT (dest) && S_GET_SEGMENT (dest) == SEG_UNKNOWN \
351
   ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
352
   : 0)
353
#endif
354
#endif
355
 
356
/* Sanity check.  */
357
 
358
#ifdef TC_I960
359
#ifndef C_LEAFSTAT
360
hey ! Where is the C_LEAFSTAT definition ? i960 - coff support is depending on it.
361
#endif /* no C_LEAFSTAT */
362
#endif /* TC_I960 */
363
 
364
extern const pseudo_typeS coff_pseudo_table[];
365
 
366
#ifndef obj_pop_insert
367
#define obj_pop_insert() pop_insert (coff_pseudo_table)
368
#endif
369
 
370
/* In COFF, if a symbol is defined using .def/.val SYM/.endef, it's OK
371
   to redefine the symbol later on.  This can happen if C symbols use
372
   a prefix, and a symbol is defined both with and without the prefix,
373
   as in start/_start/__start in gcc/libgcc1-test.c.  */
374
#define RESOLVE_SYMBOL_REDEFINITION(sym)                \
375
(SF_GET_GET_SEGMENT (sym)                               \
376
 ? (sym->sy_frag = frag_now,                            \
377
    S_SET_VALUE (sym, frag_now_fix ()),                 \
378
    S_SET_SEGMENT (sym, now_seg),                       \
379
    0)                                                   \
380
 : 0)
381
 
382
/* Stabs in a coff file go into their own section.  */
383
#define SEPARATE_STAB_SECTIONS 1
384
 
385
/* We need 12 bytes at the start of the section to hold some initial
386
   information.  */
387
#define INIT_STAB_SECTION(seg) obj_coff_init_stab_section (seg)
388
 
389
/* Store the number of relocations in the section aux entry.  */
390
#define SET_SECTION_RELOCS(sec, relocs, n) \
391
  SA_SET_SCN_NRELOC (section_symbol (sec), n)
392
 
393
#define obj_app_file(name, app) c_dot_file_symbol (name, app)
394
 
395
extern int  S_SET_DATA_TYPE              (symbolS *, int);
396
extern int  S_SET_STORAGE_CLASS          (symbolS *, int);
397
extern int  S_GET_STORAGE_CLASS          (symbolS *);
398
extern void SA_SET_SYM_ENDNDX            (symbolS *, symbolS *);
399
extern void coff_add_linesym             (symbolS *);
400
extern void c_dot_file_symbol            (const char *, int);
401
extern void coff_frob_symbol             (symbolS *, int *);
402
extern void coff_adjust_symtab           (void);
403
extern void coff_frob_section            (segT);
404
extern void coff_adjust_section_syms     (bfd *, asection *, void *);
405
extern void coff_frob_file_after_relocs  (void);
406
extern void coff_obj_symbol_new_hook     (symbolS *);
407
extern void coff_obj_symbol_clone_hook   (symbolS *, symbolS *);
408
extern void coff_obj_read_begin_hook     (void);
409
#ifdef TE_PE
410
extern void pecoff_obj_set_weak_hook     (symbolS *);
411
extern void pecoff_obj_clear_weak_hook   (symbolS *);
412
#endif
413
extern void obj_coff_section             (int);
414
extern segT obj_coff_add_segment         (const char *);
415
extern void obj_coff_section             (int);
416
extern void c_dot_file_symbol            (const char *, int);
417
extern segT s_get_segment                (symbolS *);
418
#ifndef tc_coff_symbol_emit_hook
419
extern void tc_coff_symbol_emit_hook     (symbolS *);
420
#endif
421
extern void obj_coff_pe_handle_link_once (void);
422
extern void obj_coff_init_stab_section   (segT);
423
extern void c_section_header             (struct internal_scnhdr *,
424
                                          char *, long, long, long, long,
425
                                          long, long, long, long);
426
#endif /* OBJ_FORMAT_H */

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