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5222 serge 1
/* coff object file format
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   Copyright (C) 1989-2015 Free Software Foundation, Inc.
5222 serge 3
 
4
   This file is part of GAS.
5
 
6
   GAS is free software; you can redistribute it and/or modify
7
   it under the terms of the GNU General Public License as published by
8
   the Free Software Foundation; either version 3, or (at your option)
9
   any later version.
10
 
11
   GAS is distributed in the hope that it will be useful,
12
   but WITHOUT ANY WARRANTY; without even the implied warranty of
13
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14
   GNU General Public License for more details.
15
 
16
   You should have received a copy of the GNU General Public License
17
   along with GAS; see the file COPYING.  If not, write to the Free
18
   Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
19
   02110-1301, USA.  */
20
 
21
#ifndef OBJ_FORMAT_H
22
#define OBJ_FORMAT_H
23
 
24
#define OBJ_COFF 1
25
 
26
#include "targ-cpu.h"
27
 
28
/* This internal_lineno crap is to stop namespace pollution from the
29
   bfd internal coff headerfile.  */
30
#define internal_lineno bfd_internal_lineno
31
#include "coff/internal.h"
32
#undef internal_lineno
33
 
34
/* CPU-specific setup:  */
35
 
36
#ifdef TC_ARM
37
#include "coff/arm.h"
38
#ifndef TARGET_FORMAT
39
#define TARGET_FORMAT "coff-arm"
40
#endif
41
#endif
42
 
43
#ifdef TC_PPC
44
#ifdef TE_PE
45
#include "coff/powerpc.h"
46
#else
47
#include "coff/rs6000.h"
48
#endif
49
#endif
50
 
51
#ifdef TC_SPARC
52
#include "coff/sparc.h"
53
#endif
54
 
55
#ifdef TC_I386
56
#ifdef TE_PEP
57
#include "coff/x86_64.h"
58
#else
59
#include "coff/i386.h"
60
#endif
61
 
62
#ifndef TARGET_FORMAT
63
#ifdef TE_PEP
64
#define TARGET_FORMAT "coff-x86-64"
65
#else
66
#define TARGET_FORMAT "coff-i386"
67
#endif
68
#endif
69
#endif
70
 
71
#ifdef TC_M68K
72
#include "coff/m68k.h"
73
#ifndef TARGET_FORMAT
74
#define TARGET_FORMAT "coff-m68k"
75
#endif
76
#endif
77
 
78
#ifdef TC_I960
79
#include "coff/i960.h"
80
#define TARGET_FORMAT "coff-Intel-little"
81
#endif
82
 
83
#ifdef TC_Z80
84
#include "coff/z80.h"
85
#define TARGET_FORMAT "coff-z80"
86
#endif
87
 
88
#ifdef TC_Z8K
89
#include "coff/z8k.h"
90
#define TARGET_FORMAT "coff-z8k"
91
#endif
92
 
93
#ifdef TC_H8300
94
#include "coff/h8300.h"
95
#define TARGET_FORMAT "coff-h8300"
96
#endif
97
 
98
#ifdef TC_H8500
99
#include "coff/h8500.h"
100
#define TARGET_FORMAT "coff-h8500"
101
#endif
102
 
103
#ifdef TC_SH
104
 
105
#ifdef TE_PE
106
#define COFF_WITH_PE
107
#endif
108
 
109
#include "coff/sh.h"
110
 
111
#ifdef TE_PE
112
#define TARGET_FORMAT "pe-shl"
113
#else
114
 
115
#define TARGET_FORMAT					\
116
  (!target_big_endian					\
117
   ? (sh_small ? "coff-shl-small" : "coff-shl")		\
118
   : (sh_small ? "coff-sh-small" : "coff-sh"))
119
 
120
#endif
121
#endif
122
 
123
#ifdef TC_MIPS
124
#define COFF_WITH_PE
125
#include "coff/mipspe.h"
126
#undef  TARGET_FORMAT
127
#define TARGET_FORMAT "pe-mips"
128
#endif
129
 
130
#ifdef TC_TIC30
131
#include "coff/tic30.h"
132
#define TARGET_FORMAT "coff-tic30"
133
#endif
134
 
135
#ifdef TC_TIC4X
136
#include "coff/tic4x.h"
137
#define TARGET_FORMAT "coff2-tic4x"
138
#endif
139
 
140
#ifdef TC_TIC54X
141
#include "coff/tic54x.h"
142
#define TARGET_FORMAT "coff1-c54x"
143
#endif
144
 
145
#ifdef TC_MCORE
146
#include "coff/mcore.h"
147
#ifndef TARGET_FORMAT
148
#define TARGET_FORMAT "pe-mcore"
149
#endif
150
#endif
151
 
152
#ifdef TE_PE
153
#define obj_set_weak_hook pecoff_obj_set_weak_hook
154
#define obj_clear_weak_hook pecoff_obj_clear_weak_hook
155
#endif
156
 
157
#ifndef OBJ_COFF_MAX_AUXENTRIES
158
#define OBJ_COFF_MAX_AUXENTRIES 1
159
#endif
160
 
161
#define obj_symbol_new_hook coff_obj_symbol_new_hook
162
#define obj_symbol_clone_hook coff_obj_symbol_clone_hook
163
#define obj_read_begin_hook coff_obj_read_begin_hook
164
 
165
#include "bfd/libcoff.h"
166
 
167
#define OUTPUT_FLAVOR bfd_target_coff_flavour
168
 
169
/* Alter the field names, for now, until we've fixed up the other
170
   references to use the new name.  */
171
#ifdef TC_I960
172
#define TC_SYMFIELD_TYPE	symbolS *
173
#define sy_tc			bal
174
#endif
175
 
176
#define OBJ_SYMFIELD_TYPE	unsigned long
177
#define sy_obj			sy_obj_flags
178
 
179
/* We can't use the predefined section symbols in bfd/section.c, as
180
   COFF symbols have extra fields.  See bfd/libcoff.h:coff_symbol_type.  */
181
#ifndef obj_sec_sym_ok_for_reloc
182
#define obj_sec_sym_ok_for_reloc(SEC)	((SEC)->owner != 0)
183
#endif
184
 
185
#define SYM_AUXENT(S) \
186
  (&coffsymbol (symbol_get_bfdsym (S))->native[1].u.auxent)
187
#define SYM_AUXINFO(S) \
188
  (&coffsymbol (symbol_get_bfdsym (S))->native[1])
189
 
190
/* The number of auxiliary entries.  */
191
#define S_GET_NUMBER_AUXILIARY(s) \
192
  (coffsymbol (symbol_get_bfdsym (s))->native->u.syment.n_numaux)
193
/* The number of auxiliary entries.  */
194
#define S_SET_NUMBER_AUXILIARY(s, v)	(S_GET_NUMBER_AUXILIARY (s) = (v))
195
 
196
/* True if a symbol name is in the string table, i.e. its length is > 8.  */
197
#define S_IS_STRING(s)		(strlen (S_GET_NAME (s)) > 8 ? 1 : 0)
198
 
199
/* Auxiliary entry macros. SA_ stands for symbol auxiliary.  */
200
/* Omit the tv related fields.  */
201
/* Accessors.  */
202
 
203
#define SA_GET_SYM_TAGNDX(s)	(SYM_AUXENT (s)->x_sym.x_tagndx.l)
204
#define SA_GET_SYM_LNNO(s)	(SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno)
205
#define SA_GET_SYM_SIZE(s)	(SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size)
206
#define SA_GET_SYM_FSIZE(s)	(SYM_AUXENT (s)->x_sym.x_misc.x_fsize)
207
#define SA_GET_SYM_LNNOPTR(s)	(SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr)
208
#define SA_GET_SYM_ENDNDX(s)	(SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx)
209
#define SA_GET_SYM_DIMEN(s,i)	(SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)])
210
#define SA_GET_FILE_FNAME(s)	(SYM_AUXENT (s)->x_file.x_fname)
211
#define SA_GET_SCN_SCNLEN(s)	(SYM_AUXENT (s)->x_scn.x_scnlen)
212
#define SA_GET_SCN_NRELOC(s)	(SYM_AUXENT (s)->x_scn.x_nreloc)
213
#define SA_GET_SCN_NLINNO(s)	(SYM_AUXENT (s)->x_scn.x_nlinno)
214
 
215
#define SA_SET_SYM_LNNO(s,v)	(SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno = (v))
216
#define SA_SET_SYM_SIZE(s,v)	(SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size = (v))
217
#define SA_SET_SYM_FSIZE(s,v)	(SYM_AUXENT (s)->x_sym.x_misc.x_fsize = (v))
218
#define SA_SET_SYM_LNNOPTR(s,v)	(SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr = (v))
219
#define SA_SET_SYM_DIMEN(s,i,v)	(SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)] = (v))
220
#define SA_SET_FILE_FNAME(s,v)	strncpy (SYM_AUXENT (s)->x_file.x_fname, (v), FILNMLEN)
221
#define SA_SET_SCN_SCNLEN(s,v)	(SYM_AUXENT (s)->x_scn.x_scnlen = (v))
222
#define SA_SET_SCN_NRELOC(s,v)	(SYM_AUXENT (s)->x_scn.x_nreloc = (v))
223
#define SA_SET_SCN_NLINNO(s,v)	(SYM_AUXENT (s)->x_scn.x_nlinno = (v))
224
 
225
/* Internal use only definitions. SF_ stands for symbol flags.
226
 
227
   These values can be assigned to sy_symbol.ost_flags field of a symbolS.
228
 
229
   You'll break i960 if you shift the SYSPROC bits anywhere else.  for
230
   more on the balname/callname hack, see tc-i960.h.  b.out is done
231
   differently.  */
232
 
233
#define SF_I960_MASK	0x000001ff	/* Bits 0-8 are used by the i960 port.  */
234
#define SF_SYSPROC	0x0000003f	/* bits 0-5 are used to store the sysproc number.  */
235
#define SF_IS_SYSPROC	0x00000040	/* bit 6 marks symbols that are sysprocs.  */
236
#define SF_BALNAME	0x00000080	/* bit 7 marks BALNAME symbols.  */
237
#define SF_CALLNAME	0x00000100	/* bit 8 marks CALLNAME symbols.  */
6324 serge 238
 
5222 serge 239
#define SF_NORMAL_MASK	0x0000ffff	/* bits 12-15 are general purpose.  */
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5222 serge 241
#define SF_STATICS	0x00001000	/* Mark the .text & all symbols.  */
242
#define SF_DEFINED	0x00002000	/* Symbol is defined in this file.  */
243
#define SF_STRING	0x00004000	/* Symbol name length > 8.  */
244
#define SF_LOCAL	0x00008000	/* Symbol must not be emitted.  */
6324 serge 245
 
5222 serge 246
#define SF_DEBUG_MASK	0xffff0000	/* bits 16-31 are debug info.  */
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5222 serge 248
#define SF_FUNCTION	0x00010000	/* The symbol is a function.  */
249
#define SF_PROCESS	0x00020000	/* Process symbol before write.  */
250
#define SF_TAGGED	0x00040000	/* Is associated with a tag.  */
251
#define SF_TAG		0x00080000	/* Is a tag.  */
252
#define SF_DEBUG	0x00100000	/* Is in debug or abs section.  */
253
#define SF_GET_SEGMENT	0x00200000	/* Get the section of the forward symbol.  */
254
/* All other bits are unused.  */
255
 
256
/* Accessors.  */
257
#define SF_GET(s)		(* symbol_get_obj (s))
258
#define SF_GET_DEBUG(s)		(symbol_get_bfdsym (s)->flags & BSF_DEBUGGING)
259
#define SF_SET_DEBUG(s)		(symbol_get_bfdsym (s)->flags |= BSF_DEBUGGING)
260
#define SF_GET_NORMAL_FIELD(s)	(SF_GET (s) & SF_NORMAL_MASK)
261
#define SF_GET_DEBUG_FIELD(s)	(SF_GET (s) & SF_DEBUG_MASK)
262
#define SF_GET_FILE(s)		(SF_GET (s) & SF_FILE)
263
#define SF_GET_STATICS(s)	(SF_GET (s) & SF_STATICS)
264
#define SF_GET_DEFINED(s)	(SF_GET (s) & SF_DEFINED)
265
#define SF_GET_STRING(s)	(SF_GET (s) & SF_STRING)
266
#define SF_GET_LOCAL(s)		(SF_GET (s) & SF_LOCAL)
267
#define SF_GET_FUNCTION(s)      (SF_GET (s) & SF_FUNCTION)
268
#define SF_GET_PROCESS(s)	(SF_GET (s) & SF_PROCESS)
269
#define SF_GET_TAGGED(s)	(SF_GET (s) & SF_TAGGED)
270
#define SF_GET_TAG(s)		(SF_GET (s) & SF_TAG)
271
#define SF_GET_GET_SEGMENT(s)	(SF_GET (s) & SF_GET_SEGMENT)
272
#define SF_GET_I960(s)		(SF_GET (s) & SF_I960_MASK)	/* Used by i960.  */
273
#define SF_GET_BALNAME(s)	(SF_GET (s) & SF_BALNAME)	/* Used by i960.  */
274
#define SF_GET_CALLNAME(s)	(SF_GET (s) & SF_CALLNAME)	/* Used by i960.  */
275
#define SF_GET_IS_SYSPROC(s)	(SF_GET (s) & SF_IS_SYSPROC)	/* Used by i960.  */
276
#define SF_GET_SYSPROC(s)	(SF_GET (s) & SF_SYSPROC)	/* Used by i960.  */
277
 
278
/* Modifiers.  */
279
#define SF_SET(s,v)		(SF_GET (s) = (v))
280
#define SF_SET_NORMAL_FIELD(s,v)(SF_GET (s) |= ((v) & SF_NORMAL_MASK))
281
#define SF_SET_DEBUG_FIELD(s,v)	(SF_GET (s) |= ((v) & SF_DEBUG_MASK))
282
#define SF_SET_FILE(s)		(SF_GET (s) |= SF_FILE)
283
#define SF_SET_STATICS(s)	(SF_GET (s) |= SF_STATICS)
284
#define SF_SET_DEFINED(s)	(SF_GET (s) |= SF_DEFINED)
285
#define SF_SET_STRING(s)	(SF_GET (s) |= SF_STRING)
286
#define SF_SET_LOCAL(s)		(SF_GET (s) |= SF_LOCAL)
287
#define SF_CLEAR_LOCAL(s)	(SF_GET (s) &= ~SF_LOCAL)
288
#define SF_SET_FUNCTION(s)      (SF_GET (s) |= SF_FUNCTION)
289
#define SF_SET_PROCESS(s)	(SF_GET (s) |= SF_PROCESS)
290
#define SF_SET_TAGGED(s)	(SF_GET (s) |= SF_TAGGED)
291
#define SF_SET_TAG(s)		(SF_GET (s) |= SF_TAG)
292
#define SF_SET_GET_SEGMENT(s)	(SF_GET (s) |= SF_GET_SEGMENT)
293
#define SF_SET_I960(s,v)	(SF_GET (s) |= ((v) & SF_I960_MASK))	/* Used by i960.  */
294
#define SF_SET_BALNAME(s)	(SF_GET (s) |= SF_BALNAME)		/* Used by i960.  */
295
#define SF_SET_CALLNAME(s)	(SF_GET (s) |= SF_CALLNAME)		/* Used by i960.  */
296
#define SF_SET_IS_SYSPROC(s)	(SF_GET (s) |= SF_IS_SYSPROC)		/* Used by i960.  */
297
#define SF_SET_SYSPROC(s,v)	(SF_GET (s) |= ((v) & SF_SYSPROC))	/* Used by i960.  */
298
 
299
 
300
/*  Line number handling.  */
301
extern int text_lineno_number;
302
extern int coff_line_base;
303
extern int coff_n_line_nos;
304
extern symbolS *coff_last_function;
305
 
306
#define obj_emit_lineno(WHERE, LINE, FILE_START)	abort ()
307
#define obj_app_file(name, app)      c_dot_file_symbol (name, app)
308
#define obj_frob_symbol(S,P) 	     coff_frob_symbol (S, & P)
309
#define obj_frob_section(S)	     coff_frob_section (S)
310
#define obj_frob_file_after_relocs() coff_frob_file_after_relocs ()
311
#ifndef obj_adjust_symtab
312
#define obj_adjust_symtab()	     coff_adjust_symtab ()
313
#endif
314
 
315
/* Forward the segment of a forwarded symbol, handle assignments that
316
   just copy symbol values, etc.  */
317
#ifndef OBJ_COPY_SYMBOL_ATTRIBUTES
318
#ifndef TE_I386AIX
319
#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \
320
  (SF_GET_GET_SEGMENT (dest) \
321
   ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
322
   : 0)
323
#else
324
#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \
325
  (SF_GET_GET_SEGMENT (dest) && S_GET_SEGMENT (dest) == SEG_UNKNOWN \
326
   ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
327
   : 0)
328
#endif
329
#endif
330
 
331
/* Sanity check.  */
332
 
333
#ifdef TC_I960
334
#ifndef C_LEAFSTAT
335
hey ! Where is the C_LEAFSTAT definition ? i960 - coff support is depending on it.
336
#endif /* no C_LEAFSTAT */
337
#endif /* TC_I960 */
338
 
339
extern const pseudo_typeS coff_pseudo_table[];
340
 
341
#ifndef obj_pop_insert
342
#define obj_pop_insert() pop_insert (coff_pseudo_table)
343
#endif
344
 
345
/* In COFF, if a symbol is defined using .def/.val SYM/.endef, it's OK
346
   to redefine the symbol later on.  This can happen if C symbols use
347
   a prefix, and a symbol is defined both with and without the prefix,
348
   as in start/_start/__start in gcc/libgcc1-test.c.  */
349
#define RESOLVE_SYMBOL_REDEFINITION(sym)		\
350
(SF_GET_GET_SEGMENT (sym)				\
351
 ? (sym->sy_frag = frag_now,				\
352
    S_SET_VALUE (sym, frag_now_fix ()),			\
353
    S_SET_SEGMENT (sym, now_seg),			\
354
    0)							\
355
 : 0)
356
 
357
/* Stabs in a coff file go into their own section.  */
358
#define SEPARATE_STAB_SECTIONS 1
359
 
360
/* We need 12 bytes at the start of the section to hold some initial
361
   information.  */
362
#define INIT_STAB_SECTION(seg) obj_coff_init_stab_section (seg)
363
 
364
/* Store the number of relocations in the section aux entry.  */
365
#define SET_SECTION_RELOCS(sec, relocs, n) \
366
  SA_SET_SCN_NRELOC (section_symbol (sec), n)
367
 
368
#define obj_app_file(name, app) c_dot_file_symbol (name, app)
369
 
370
extern int  S_SET_DATA_TYPE              (symbolS *, int);
371
extern int  S_SET_STORAGE_CLASS          (symbolS *, int);
372
extern int  S_GET_STORAGE_CLASS          (symbolS *);
373
extern void SA_SET_SYM_ENDNDX            (symbolS *, symbolS *);
374
extern void coff_add_linesym             (symbolS *);
375
extern void c_dot_file_symbol            (const char *, int);
376
extern void coff_frob_symbol             (symbolS *, int *);
377
extern void coff_adjust_symtab           (void);
378
extern void coff_frob_section            (segT);
379
extern void coff_adjust_section_syms     (bfd *, asection *, void *);
380
extern void coff_frob_file_after_relocs  (void);
381
extern void coff_obj_symbol_new_hook     (symbolS *);
382
extern void coff_obj_symbol_clone_hook   (symbolS *, symbolS *);
383
extern void coff_obj_read_begin_hook     (void);
384
#ifdef TE_PE
385
extern void pecoff_obj_set_weak_hook     (symbolS *);
386
extern void pecoff_obj_clear_weak_hook   (symbolS *);
387
#endif
388
extern void obj_coff_section             (int);
389
extern segT obj_coff_add_segment         (const char *);
390
extern void obj_coff_section             (int);
391
extern void c_dot_file_symbol            (const char *, int);
392
extern segT s_get_segment                (symbolS *);
393
#ifndef tc_coff_symbol_emit_hook
394
extern void tc_coff_symbol_emit_hook     (symbolS *);
395
#endif
396
extern void obj_coff_pe_handle_link_once (void);
397
extern void obj_coff_init_stab_section   (segT);
398
extern void c_section_header             (struct internal_scnhdr *,
399
					  char *, long, long, long, long,
400
					  long, long, long, long);
401
extern void obj_coff_seh_do_final (void);
402
 
403
#ifndef obj_coff_generate_pdata
404
#define obj_coff_generate_pdata obj_coff_seh_do_final
405
#endif
406
 
407
 
408
#endif /* OBJ_FORMAT_H */