gas/
[deliverable/binutils-gdb.git] / gas / config / obj-coff.h
CommitLineData
252b5132 1/* coff object file format
f7e42eb4 2 Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
a5324a3e 3 1999, 2000, 2001, 2002, 2003, 2004, 2005
252b5132
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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 2, 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
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NC
20 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
21 02110-1301, USA. */
252b5132
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22
23#ifndef OBJ_FORMAT_H
24#define OBJ_FORMAT_H
25
26#define OBJ_COFF 1
27
252b5132
RH
28#include "targ-cpu.h"
29
30#include "bfd.h"
31
32/* This internal_lineno crap is to stop namespace pollution from the
dcd619be 33 bfd internal coff headerfile. */
252b5132
RH
34#define internal_lineno bfd_internal_lineno
35#include "coff/internal.h"
36#undef internal_lineno
37
38/* CPU-specific setup: */
39
40#ifdef TC_ARM
41#include "coff/arm.h"
42#ifndef TARGET_FORMAT
43#define TARGET_FORMAT "coff-arm"
44#endif
45#endif
46
47#ifdef TC_PPC
48#ifdef TE_PE
49#include "coff/powerpc.h"
50#else
51#include "coff/rs6000.h"
52#endif
53#endif
54
55#ifdef TC_SPARC
56#include "coff/sparc.h"
57#endif
58
59#ifdef TC_I386
60#include "coff/i386.h"
61
62#ifdef TE_PE
63#define TARGET_FORMAT "pe-i386"
64#endif
65
66#ifndef TARGET_FORMAT
67#define TARGET_FORMAT "coff-i386"
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
3b16e843
NC
78#ifdef TC_OR32
79#include "coff/or32.h"
80#define TARGET_FORMAT "coff-or32-big"
81#endif
82
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83#ifdef TC_I960
84#include "coff/i960.h"
85#define TARGET_FORMAT "coff-Intel-little"
86#endif
87
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88#ifdef TC_Z80
89#include "coff/z80.h"
90#define TARGET_FORMAT "coff-z80"
91#endif
92
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93#ifdef TC_Z8K
94#include "coff/z8k.h"
95#define TARGET_FORMAT "coff-z8k"
96#endif
97
98#ifdef TC_H8300
99#include "coff/h8300.h"
100#define TARGET_FORMAT "coff-h8300"
101#endif
102
103#ifdef TC_H8500
104#include "coff/h8500.h"
105#define TARGET_FORMAT "coff-h8500"
106#endif
107
7499d566
NC
108#ifdef TC_MAXQ20
109#include "coff/maxq.h"
110#define TARGET_FORMAT "coff-maxq"
111#endif
112
252b5132 113#ifdef TC_SH
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114
115#ifdef TE_PE
116#define COFF_WITH_PE
117#endif
118
252b5132 119#include "coff/sh.h"
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120
121#ifdef TE_PE
122#define TARGET_FORMAT "pe-shl"
123#else
94f592af 124
252b5132 125#define TARGET_FORMAT \
a245a9aa 126 (!target_big_endian \
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127 ? (sh_small ? "coff-shl-small" : "coff-shl") \
128 : (sh_small ? "coff-sh-small" : "coff-sh"))
94f592af 129
252b5132 130#endif
056350c6
NC
131#endif
132
133#ifdef TC_MIPS
134#define COFF_WITH_PE
135#include "coff/mipspe.h"
136#undef TARGET_FORMAT
137#define TARGET_FORMAT "pe-mips"
138#endif
252b5132 139
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140#ifdef TC_TIC30
141#include "coff/tic30.h"
142#define TARGET_FORMAT "coff-tic30"
143#endif
144
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145#ifdef TC_TIC4X
146#include "coff/tic4x.h"
be33c5dd 147#define TARGET_FORMAT "coff2-tic4x"
026df7c5
NC
148#endif
149
39bec121
TW
150#ifdef TC_TIC54X
151#include "coff/tic54x.h"
152#define TARGET_FORMAT "coff1-c54x"
153#endif
154
252b5132
RH
155#ifdef TC_MCORE
156#include "coff/mcore.h"
157#ifndef TARGET_FORMAT
158#define TARGET_FORMAT "pe-mcore"
159#endif
160#endif
161
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162#ifdef TE_PE
163/* PE weak symbols need USE_UNIQUE. */
164#define USE_UNIQUE 1
06e77878
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165
166#define obj_set_weak_hook pecoff_obj_set_weak_hook
167#define obj_clear_weak_hook pecoff_obj_clear_weak_hook
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NC
168#endif
169
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170#ifndef OBJ_COFF_MAX_AUXENTRIES
171#define OBJ_COFF_MAX_AUXENTRIES 1
977cdf5a 172#endif
252b5132 173
252b5132 174#define obj_symbol_new_hook coff_obj_symbol_new_hook
6a2b6326 175#define obj_symbol_clone_hook coff_obj_symbol_clone_hook
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176#define obj_read_begin_hook coff_obj_read_begin_hook
177
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178#include "bfd/libcoff.h"
179
180#define OUTPUT_FLAVOR bfd_target_coff_flavour
181
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182/* Alter the field names, for now, until we've fixed up the other
183 references to use the new name. */
184#ifdef TC_I960
49309057 185#define TC_SYMFIELD_TYPE symbolS *
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RH
186#define sy_tc bal
187#endif
188
189#define OBJ_SYMFIELD_TYPE unsigned long
190#define sy_obj sy_flags
191
a161fe53
AM
192/* We can't use the predefined section symbols in bfd/section.c, as
193 COFF symbols have extra fields. See bfd/libcoff.h:coff_symbol_type. */
194#ifndef obj_sec_sym_ok_for_reloc
195#define obj_sec_sym_ok_for_reloc(SEC) ((SEC)->owner != 0)
196#endif
197
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198#define SYM_AUXENT(S) \
199 (&coffsymbol (symbol_get_bfdsym (S))->native[1].u.auxent)
200#define SYM_AUXINFO(S) \
201 (&coffsymbol (symbol_get_bfdsym (S))->native[1])
252b5132 202
3b16e843 203/* The number of auxiliary entries. */
49309057
ILT
204#define S_GET_NUMBER_AUXILIARY(s) \
205 (coffsymbol (symbol_get_bfdsym (s))->native->u.syment.n_numaux)
3b16e843 206/* The number of auxiliary entries. */
a5324a3e 207#define S_SET_NUMBER_AUXILIARY(s, v) (S_GET_NUMBER_AUXILIARY (s) = (v))
252b5132 208
dcd619be 209/* True if a symbol name is in the string table, i.e. its length is > 8. */
a5324a3e 210#define S_IS_STRING(s) (strlen (S_GET_NAME (s)) > 8 ? 1 : 0)
252b5132 211
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NC
212/* Auxiliary entry macros. SA_ stands for symbol auxiliary. */
213/* Omit the tv related fields. */
214/* Accessors. */
252b5132
RH
215
216#define SA_GET_SYM_TAGNDX(s) (SYM_AUXENT (s)->x_sym.x_tagndx.l)
217#define SA_GET_SYM_LNNO(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno)
218#define SA_GET_SYM_SIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size)
219#define SA_GET_SYM_FSIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize)
220#define SA_GET_SYM_LNNOPTR(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr)
221#define SA_GET_SYM_ENDNDX(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx)
222#define SA_GET_SYM_DIMEN(s,i) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)])
223#define SA_GET_FILE_FNAME(s) (SYM_AUXENT (s)->x_file.x_fname)
224#define SA_GET_SCN_SCNLEN(s) (SYM_AUXENT (s)->x_scn.x_scnlen)
225#define SA_GET_SCN_NRELOC(s) (SYM_AUXENT (s)->x_scn.x_nreloc)
226#define SA_GET_SCN_NLINNO(s) (SYM_AUXENT (s)->x_scn.x_nlinno)
227
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228#define SA_SET_SYM_LNNO(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno = (v))
229#define SA_SET_SYM_SIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size = (v))
230#define SA_SET_SYM_FSIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize = (v))
231#define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr = (v))
232#define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)] = (v))
233#define SA_SET_FILE_FNAME(s,v) strncpy (SYM_AUXENT (s)->x_file.x_fname, (v), FILNMLEN)
234#define SA_SET_SCN_SCNLEN(s,v) (SYM_AUXENT (s)->x_scn.x_scnlen = (v))
235#define SA_SET_SCN_NRELOC(s,v) (SYM_AUXENT (s)->x_scn.x_nreloc = (v))
236#define SA_SET_SCN_NLINNO(s,v) (SYM_AUXENT (s)->x_scn.x_nlinno = (v))
252b5132 237
3b16e843 238/* Internal use only definitions. SF_ stands for symbol flags.
5d6255fe 239
3b16e843 240 These values can be assigned to sy_symbol.ost_flags field of a symbolS.
5d6255fe 241
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NC
242 You'll break i960 if you shift the SYSPROC bits anywhere else. for
243 more on the balname/callname hack, see tc-i960.h. b.out is done
244 differently. */
252b5132 245
a5324a3e
NC
246#define SF_I960_MASK 0x000001ff /* Bits 0-8 are used by the i960 port. */
247#define SF_SYSPROC 0x0000003f /* bits 0-5 are used to store the sysproc number. */
248#define SF_IS_SYSPROC 0x00000040 /* bit 6 marks symbols that are sysprocs. */
249#define SF_BALNAME 0x00000080 /* bit 7 marks BALNAME symbols. */
250#define SF_CALLNAME 0x00000100 /* bit 8 marks CALLNAME symbols. */
251
252#define SF_NORMAL_MASK 0x0000ffff /* bits 12-15 are general purpose. */
253
254#define SF_STATICS 0x00001000 /* Mark the .text & all symbols. */
255#define SF_DEFINED 0x00002000 /* Symbol is defined in this file. */
256#define SF_STRING 0x00004000 /* Symbol name length > 8. */
257#define SF_LOCAL 0x00008000 /* Symbol must not be emitted. */
258
259#define SF_DEBUG_MASK 0xffff0000 /* bits 16-31 are debug info. */
260
261#define SF_FUNCTION 0x00010000 /* The symbol is a function. */
262#define SF_PROCESS 0x00020000 /* Process symbol before write. */
263#define SF_TAGGED 0x00040000 /* Is associated with a tag. */
264#define SF_TAG 0x00080000 /* Is a tag. */
265#define SF_DEBUG 0x00100000 /* Is in debug or abs section. */
266#define SF_GET_SEGMENT 0x00200000 /* Get the section of the forward symbol. */
dcd619be 267/* All other bits are unused. */
252b5132 268
3b16e843 269/* Accessors. */
a5324a3e 270#define SF_GET(s) (* symbol_get_obj (s))
49309057
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271#define SF_GET_DEBUG(s) (symbol_get_bfdsym (s)->flags & BSF_DEBUGGING)
272#define SF_SET_DEBUG(s) (symbol_get_bfdsym (s)->flags |= BSF_DEBUGGING)
252b5132
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273#define SF_GET_NORMAL_FIELD(s) (SF_GET (s) & SF_NORMAL_MASK)
274#define SF_GET_DEBUG_FIELD(s) (SF_GET (s) & SF_DEBUG_MASK)
275#define SF_GET_FILE(s) (SF_GET (s) & SF_FILE)
276#define SF_GET_STATICS(s) (SF_GET (s) & SF_STATICS)
277#define SF_GET_DEFINED(s) (SF_GET (s) & SF_DEFINED)
278#define SF_GET_STRING(s) (SF_GET (s) & SF_STRING)
279#define SF_GET_LOCAL(s) (SF_GET (s) & SF_LOCAL)
280#define SF_GET_FUNCTION(s) (SF_GET (s) & SF_FUNCTION)
281#define SF_GET_PROCESS(s) (SF_GET (s) & SF_PROCESS)
282#define SF_GET_TAGGED(s) (SF_GET (s) & SF_TAGGED)
283#define SF_GET_TAG(s) (SF_GET (s) & SF_TAG)
284#define SF_GET_GET_SEGMENT(s) (SF_GET (s) & SF_GET_SEGMENT)
a5324a3e
NC
285#define SF_GET_I960(s) (SF_GET (s) & SF_I960_MASK) /* Used by i960. */
286#define SF_GET_BALNAME(s) (SF_GET (s) & SF_BALNAME) /* Used by i960. */
287#define SF_GET_CALLNAME(s) (SF_GET (s) & SF_CALLNAME) /* Used by i960. */
288#define SF_GET_IS_SYSPROC(s) (SF_GET (s) & SF_IS_SYSPROC) /* Used by i960. */
289#define SF_GET_SYSPROC(s) (SF_GET (s) & SF_SYSPROC) /* Used by i960. */
252b5132 290
3b16e843 291/* Modifiers. */
252b5132 292#define SF_SET(s,v) (SF_GET (s) = (v))
a5324a3e 293#define SF_SET_NORMAL_FIELD(s,v)(SF_GET (s) |= ((v) & SF_NORMAL_MASK))
252b5132
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294#define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK))
295#define SF_SET_FILE(s) (SF_GET (s) |= SF_FILE)
296#define SF_SET_STATICS(s) (SF_GET (s) |= SF_STATICS)
297#define SF_SET_DEFINED(s) (SF_GET (s) |= SF_DEFINED)
298#define SF_SET_STRING(s) (SF_GET (s) |= SF_STRING)
299#define SF_SET_LOCAL(s) (SF_GET (s) |= SF_LOCAL)
300#define SF_CLEAR_LOCAL(s) (SF_GET (s) &= ~SF_LOCAL)
301#define SF_SET_FUNCTION(s) (SF_GET (s) |= SF_FUNCTION)
302#define SF_SET_PROCESS(s) (SF_GET (s) |= SF_PROCESS)
303#define SF_SET_TAGGED(s) (SF_GET (s) |= SF_TAGGED)
304#define SF_SET_TAG(s) (SF_GET (s) |= SF_TAG)
305#define SF_SET_GET_SEGMENT(s) (SF_GET (s) |= SF_GET_SEGMENT)
a5324a3e
NC
306#define SF_SET_I960(s,v) (SF_GET (s) |= ((v) & SF_I960_MASK)) /* Used by i960. */
307#define SF_SET_BALNAME(s) (SF_GET (s) |= SF_BALNAME) /* Used by i960. */
308#define SF_SET_CALLNAME(s) (SF_GET (s) |= SF_CALLNAME) /* Used by i960. */
309#define SF_SET_IS_SYSPROC(s) (SF_GET (s) |= SF_IS_SYSPROC) /* Used by i960. */
310#define SF_SET_SYSPROC(s,v) (SF_GET (s) |= ((v) & SF_SYSPROC)) /* Used by i960. */
252b5132 311
a5324a3e
NC
312
313/* Line number handling. */
252b5132
RH
314extern int text_lineno_number;
315extern int coff_line_base;
316extern int coff_n_line_nos;
a5324a3e 317extern symbolS *coff_last_function;
252b5132 318
a5324a3e
NC
319#define obj_emit_lineno(WHERE, LINE, FILE_START) abort ()
320#define obj_app_file(name, app) c_dot_file_symbol (name, app)
321#define obj_frob_symbol(S,P) coff_frob_symbol (S, & P)
322#define obj_frob_section(S) coff_frob_section (S)
323#define obj_frob_file_after_relocs() coff_frob_file_after_relocs ()
252b5132 324#ifndef obj_adjust_symtab
a5324a3e 325#define obj_adjust_symtab() coff_adjust_symtab ()
252b5132 326#endif
252b5132
RH
327
328/* Forward the segment of a forwarded symbol, handle assignments that
329 just copy symbol values, etc. */
2c1c4c62 330#ifndef OBJ_COPY_SYMBOL_ATTRIBUTES
252b5132 331#ifndef TE_I386AIX
a5324a3e 332#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \
252b5132
RH
333 (SF_GET_GET_SEGMENT (dest) \
334 ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
335 : 0)
336#else
a5324a3e 337#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \
252b5132
RH
338 (SF_GET_GET_SEGMENT (dest) && S_GET_SEGMENT (dest) == SEG_UNKNOWN \
339 ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
340 : 0)
341#endif
2c1c4c62 342#endif
252b5132 343
3b16e843 344/* Sanity check. */
252b5132
RH
345
346#ifdef TC_I960
347#ifndef C_LEAFSTAT
348hey ! Where is the C_LEAFSTAT definition ? i960 - coff support is depending on it.
349#endif /* no C_LEAFSTAT */
350#endif /* TC_I960 */
351
4c63da97
AM
352extern const pseudo_typeS coff_pseudo_table[];
353
354#ifndef obj_pop_insert
355#define obj_pop_insert() pop_insert (coff_pseudo_table)
356#endif
357
252b5132
RH
358/* In COFF, if a symbol is defined using .def/.val SYM/.endef, it's OK
359 to redefine the symbol later on. This can happen if C symbols use
360 a prefix, and a symbol is defined both with and without the prefix,
361 as in start/_start/__start in gcc/libgcc1-test.c. */
362#define RESOLVE_SYMBOL_REDEFINITION(sym) \
363(SF_GET_GET_SEGMENT (sym) \
364 ? (sym->sy_frag = frag_now, \
365 S_SET_VALUE (sym, frag_now_fix ()), \
366 S_SET_SEGMENT (sym, now_seg), \
367 0) \
368 : 0)
369
370/* Stabs in a coff file go into their own section. */
371#define SEPARATE_STAB_SECTIONS 1
372
373/* We need 12 bytes at the start of the section to hold some initial
374 information. */
252b5132
RH
375#define INIT_STAB_SECTION(seg) obj_coff_init_stab_section (seg)
376
945a1a6b
ILT
377/* Store the number of relocations in the section aux entry. */
378#define SET_SECTION_RELOCS(sec, relocs, n) \
379 SA_SET_SCN_NRELOC (section_symbol (sec), n)
380
a5324a3e
NC
381#define obj_app_file(name, app) c_dot_file_symbol (name, app)
382
a5324a3e
NC
383extern int S_SET_DATA_TYPE (symbolS *, int);
384extern int S_SET_STORAGE_CLASS (symbolS *, int);
385extern int S_GET_STORAGE_CLASS (symbolS *);
386extern void SA_SET_SYM_ENDNDX (symbolS *, symbolS *);
387extern void coff_add_linesym (symbolS *);
388extern void c_dot_file_symbol (const char *, int);
389extern void coff_frob_symbol (symbolS *, int *);
390extern void coff_adjust_symtab (void);
391extern void coff_frob_section (segT);
392extern void coff_adjust_section_syms (bfd *, asection *, void *);
393extern void coff_frob_file_after_relocs (void);
a5324a3e 394extern void coff_obj_symbol_new_hook (symbolS *);
6a2b6326 395extern void coff_obj_symbol_clone_hook (symbolS *, symbolS *);
a5324a3e 396extern void coff_obj_read_begin_hook (void);
06e77878
AO
397#ifdef TE_PE
398extern void pecoff_obj_set_weak_hook (symbolS *);
399extern void pecoff_obj_clear_weak_hook (symbolS *);
400#endif
a5324a3e
NC
401extern void obj_coff_section (int);
402extern segT obj_coff_add_segment (const char *);
403extern void obj_coff_section (int);
404extern void c_dot_file_symbol (const char *, int);
405extern segT s_get_segment (symbolS *);
36bfbdd3 406#ifndef tc_coff_symbol_emit_hook
a5324a3e 407extern void tc_coff_symbol_emit_hook (symbolS *);
36bfbdd3 408#endif
a5324a3e
NC
409extern void obj_coff_pe_handle_link_once (void);
410extern void obj_coff_init_stab_section (segT);
411extern void c_section_header (struct internal_scnhdr *,
412 char *, long, long, long, long,
413 long, long, long, long);
252b5132 414#endif /* OBJ_FORMAT_H */
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