PR ld/1540
[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
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RH
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. */
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22
23#ifndef OBJ_FORMAT_H
24#define OBJ_FORMAT_H
25
26#define OBJ_COFF 1
27
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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. */
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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
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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
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
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103#ifdef TC_MAXQ20
104#include "coff/maxq.h"
105#define TARGET_FORMAT "coff-maxq"
106#endif
107
252b5132 108#ifdef TC_SH
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109
110#ifdef TE_PE
111#define COFF_WITH_PE
112#endif
113
252b5132 114#include "coff/sh.h"
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115
116#ifdef TE_PE
117#define TARGET_FORMAT "pe-shl"
118#else
94f592af 119
252b5132 120#define TARGET_FORMAT \
a245a9aa 121 (!target_big_endian \
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122 ? (sh_small ? "coff-shl-small" : "coff-shl") \
123 : (sh_small ? "coff-sh-small" : "coff-sh"))
94f592af 124
252b5132 125#endif
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126#endif
127
128#ifdef TC_MIPS
129#define COFF_WITH_PE
130#include "coff/mipspe.h"
131#undef TARGET_FORMAT
132#define TARGET_FORMAT "pe-mips"
133#endif
252b5132 134
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135#ifdef TC_TIC30
136#include "coff/tic30.h"
137#define TARGET_FORMAT "coff-tic30"
138#endif
139
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140#ifdef TC_TIC4X
141#include "coff/tic4x.h"
be33c5dd 142#define TARGET_FORMAT "coff2-tic4x"
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143#endif
144
39bec121
TW
145#ifdef TC_TIC54X
146#include "coff/tic54x.h"
147#define TARGET_FORMAT "coff1-c54x"
148#endif
149
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RH
150#ifdef TC_MCORE
151#include "coff/mcore.h"
152#ifndef TARGET_FORMAT
153#define TARGET_FORMAT "pe-mcore"
154#endif
155#endif
156
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157#ifdef TE_PE
158/* PE weak symbols need USE_UNIQUE. */
159#define USE_UNIQUE 1
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160
161#define obj_set_weak_hook pecoff_obj_set_weak_hook
162#define obj_clear_weak_hook pecoff_obj_clear_weak_hook
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163#endif
164
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165#ifndef OBJ_COFF_MAX_AUXENTRIES
166#define OBJ_COFF_MAX_AUXENTRIES 1
977cdf5a 167#endif
252b5132 168
252b5132 169#define obj_symbol_new_hook coff_obj_symbol_new_hook
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170#define obj_read_begin_hook coff_obj_read_begin_hook
171
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172#include "bfd/libcoff.h"
173
174#define OUTPUT_FLAVOR bfd_target_coff_flavour
175
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176/* Alter the field names, for now, until we've fixed up the other
177 references to use the new name. */
178#ifdef TC_I960
49309057 179#define TC_SYMFIELD_TYPE symbolS *
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180#define sy_tc bal
181#endif
182
183#define OBJ_SYMFIELD_TYPE unsigned long
184#define sy_obj sy_flags
185
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186/* We can't use the predefined section symbols in bfd/section.c, as
187 COFF symbols have extra fields. See bfd/libcoff.h:coff_symbol_type. */
188#ifndef obj_sec_sym_ok_for_reloc
189#define obj_sec_sym_ok_for_reloc(SEC) ((SEC)->owner != 0)
190#endif
191
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192#define SYM_AUXENT(S) \
193 (&coffsymbol (symbol_get_bfdsym (S))->native[1].u.auxent)
194#define SYM_AUXINFO(S) \
195 (&coffsymbol (symbol_get_bfdsym (S))->native[1])
252b5132 196
3b16e843 197/* The number of auxiliary entries. */
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ILT
198#define S_GET_NUMBER_AUXILIARY(s) \
199 (coffsymbol (symbol_get_bfdsym (s))->native->u.syment.n_numaux)
3b16e843 200/* The number of auxiliary entries. */
a5324a3e 201#define S_SET_NUMBER_AUXILIARY(s, v) (S_GET_NUMBER_AUXILIARY (s) = (v))
252b5132 202
dcd619be 203/* True if a symbol name is in the string table, i.e. its length is > 8. */
a5324a3e 204#define S_IS_STRING(s) (strlen (S_GET_NAME (s)) > 8 ? 1 : 0)
252b5132 205
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NC
206/* Auxiliary entry macros. SA_ stands for symbol auxiliary. */
207/* Omit the tv related fields. */
208/* Accessors. */
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209
210#define SA_GET_SYM_TAGNDX(s) (SYM_AUXENT (s)->x_sym.x_tagndx.l)
211#define SA_GET_SYM_LNNO(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno)
212#define SA_GET_SYM_SIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size)
213#define SA_GET_SYM_FSIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize)
214#define SA_GET_SYM_LNNOPTR(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr)
215#define SA_GET_SYM_ENDNDX(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx)
216#define SA_GET_SYM_DIMEN(s,i) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)])
217#define SA_GET_FILE_FNAME(s) (SYM_AUXENT (s)->x_file.x_fname)
218#define SA_GET_SCN_SCNLEN(s) (SYM_AUXENT (s)->x_scn.x_scnlen)
219#define SA_GET_SCN_NRELOC(s) (SYM_AUXENT (s)->x_scn.x_nreloc)
220#define SA_GET_SCN_NLINNO(s) (SYM_AUXENT (s)->x_scn.x_nlinno)
221
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222#define SA_SET_SYM_LNNO(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno = (v))
223#define SA_SET_SYM_SIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size = (v))
224#define SA_SET_SYM_FSIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize = (v))
225#define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr = (v))
226#define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)] = (v))
227#define SA_SET_FILE_FNAME(s,v) strncpy (SYM_AUXENT (s)->x_file.x_fname, (v), FILNMLEN)
228#define SA_SET_SCN_SCNLEN(s,v) (SYM_AUXENT (s)->x_scn.x_scnlen = (v))
229#define SA_SET_SCN_NRELOC(s,v) (SYM_AUXENT (s)->x_scn.x_nreloc = (v))
230#define SA_SET_SCN_NLINNO(s,v) (SYM_AUXENT (s)->x_scn.x_nlinno = (v))
252b5132 231
3b16e843 232/* Internal use only definitions. SF_ stands for symbol flags.
5d6255fe 233
3b16e843 234 These values can be assigned to sy_symbol.ost_flags field of a symbolS.
5d6255fe 235
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NC
236 You'll break i960 if you shift the SYSPROC bits anywhere else. for
237 more on the balname/callname hack, see tc-i960.h. b.out is done
238 differently. */
252b5132 239
a5324a3e
NC
240#define SF_I960_MASK 0x000001ff /* Bits 0-8 are used by the i960 port. */
241#define SF_SYSPROC 0x0000003f /* bits 0-5 are used to store the sysproc number. */
242#define SF_IS_SYSPROC 0x00000040 /* bit 6 marks symbols that are sysprocs. */
243#define SF_BALNAME 0x00000080 /* bit 7 marks BALNAME symbols. */
244#define SF_CALLNAME 0x00000100 /* bit 8 marks CALLNAME symbols. */
245
246#define SF_NORMAL_MASK 0x0000ffff /* bits 12-15 are general purpose. */
247
248#define SF_STATICS 0x00001000 /* Mark the .text & all symbols. */
249#define SF_DEFINED 0x00002000 /* Symbol is defined in this file. */
250#define SF_STRING 0x00004000 /* Symbol name length > 8. */
251#define SF_LOCAL 0x00008000 /* Symbol must not be emitted. */
252
253#define SF_DEBUG_MASK 0xffff0000 /* bits 16-31 are debug info. */
254
255#define SF_FUNCTION 0x00010000 /* The symbol is a function. */
256#define SF_PROCESS 0x00020000 /* Process symbol before write. */
257#define SF_TAGGED 0x00040000 /* Is associated with a tag. */
258#define SF_TAG 0x00080000 /* Is a tag. */
259#define SF_DEBUG 0x00100000 /* Is in debug or abs section. */
260#define SF_GET_SEGMENT 0x00200000 /* Get the section of the forward symbol. */
dcd619be 261/* All other bits are unused. */
252b5132 262
3b16e843 263/* Accessors. */
a5324a3e 264#define SF_GET(s) (* symbol_get_obj (s))
49309057
ILT
265#define SF_GET_DEBUG(s) (symbol_get_bfdsym (s)->flags & BSF_DEBUGGING)
266#define SF_SET_DEBUG(s) (symbol_get_bfdsym (s)->flags |= BSF_DEBUGGING)
252b5132
RH
267#define SF_GET_NORMAL_FIELD(s) (SF_GET (s) & SF_NORMAL_MASK)
268#define SF_GET_DEBUG_FIELD(s) (SF_GET (s) & SF_DEBUG_MASK)
269#define SF_GET_FILE(s) (SF_GET (s) & SF_FILE)
270#define SF_GET_STATICS(s) (SF_GET (s) & SF_STATICS)
271#define SF_GET_DEFINED(s) (SF_GET (s) & SF_DEFINED)
272#define SF_GET_STRING(s) (SF_GET (s) & SF_STRING)
273#define SF_GET_LOCAL(s) (SF_GET (s) & SF_LOCAL)
274#define SF_GET_FUNCTION(s) (SF_GET (s) & SF_FUNCTION)
275#define SF_GET_PROCESS(s) (SF_GET (s) & SF_PROCESS)
276#define SF_GET_TAGGED(s) (SF_GET (s) & SF_TAGGED)
277#define SF_GET_TAG(s) (SF_GET (s) & SF_TAG)
278#define SF_GET_GET_SEGMENT(s) (SF_GET (s) & SF_GET_SEGMENT)
a5324a3e
NC
279#define SF_GET_I960(s) (SF_GET (s) & SF_I960_MASK) /* Used by i960. */
280#define SF_GET_BALNAME(s) (SF_GET (s) & SF_BALNAME) /* Used by i960. */
281#define SF_GET_CALLNAME(s) (SF_GET (s) & SF_CALLNAME) /* Used by i960. */
282#define SF_GET_IS_SYSPROC(s) (SF_GET (s) & SF_IS_SYSPROC) /* Used by i960. */
283#define SF_GET_SYSPROC(s) (SF_GET (s) & SF_SYSPROC) /* Used by i960. */
252b5132 284
3b16e843 285/* Modifiers. */
252b5132 286#define SF_SET(s,v) (SF_GET (s) = (v))
a5324a3e 287#define SF_SET_NORMAL_FIELD(s,v)(SF_GET (s) |= ((v) & SF_NORMAL_MASK))
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288#define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK))
289#define SF_SET_FILE(s) (SF_GET (s) |= SF_FILE)
290#define SF_SET_STATICS(s) (SF_GET (s) |= SF_STATICS)
291#define SF_SET_DEFINED(s) (SF_GET (s) |= SF_DEFINED)
292#define SF_SET_STRING(s) (SF_GET (s) |= SF_STRING)
293#define SF_SET_LOCAL(s) (SF_GET (s) |= SF_LOCAL)
294#define SF_CLEAR_LOCAL(s) (SF_GET (s) &= ~SF_LOCAL)
295#define SF_SET_FUNCTION(s) (SF_GET (s) |= SF_FUNCTION)
296#define SF_SET_PROCESS(s) (SF_GET (s) |= SF_PROCESS)
297#define SF_SET_TAGGED(s) (SF_GET (s) |= SF_TAGGED)
298#define SF_SET_TAG(s) (SF_GET (s) |= SF_TAG)
299#define SF_SET_GET_SEGMENT(s) (SF_GET (s) |= SF_GET_SEGMENT)
a5324a3e
NC
300#define SF_SET_I960(s,v) (SF_GET (s) |= ((v) & SF_I960_MASK)) /* Used by i960. */
301#define SF_SET_BALNAME(s) (SF_GET (s) |= SF_BALNAME) /* Used by i960. */
302#define SF_SET_CALLNAME(s) (SF_GET (s) |= SF_CALLNAME) /* Used by i960. */
303#define SF_SET_IS_SYSPROC(s) (SF_GET (s) |= SF_IS_SYSPROC) /* Used by i960. */
304#define SF_SET_SYSPROC(s,v) (SF_GET (s) |= ((v) & SF_SYSPROC)) /* Used by i960. */
252b5132 305
a5324a3e
NC
306
307/* Line number handling. */
252b5132
RH
308extern int text_lineno_number;
309extern int coff_line_base;
310extern int coff_n_line_nos;
a5324a3e 311extern symbolS *coff_last_function;
252b5132 312
a5324a3e
NC
313#define obj_emit_lineno(WHERE, LINE, FILE_START) abort ()
314#define obj_app_file(name, app) c_dot_file_symbol (name, app)
315#define obj_frob_symbol(S,P) coff_frob_symbol (S, & P)
316#define obj_frob_section(S) coff_frob_section (S)
317#define obj_frob_file_after_relocs() coff_frob_file_after_relocs ()
252b5132 318#ifndef obj_adjust_symtab
a5324a3e 319#define obj_adjust_symtab() coff_adjust_symtab ()
252b5132 320#endif
252b5132
RH
321
322/* Forward the segment of a forwarded symbol, handle assignments that
323 just copy symbol values, etc. */
2c1c4c62 324#ifndef OBJ_COPY_SYMBOL_ATTRIBUTES
252b5132 325#ifndef TE_I386AIX
a5324a3e 326#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \
252b5132
RH
327 (SF_GET_GET_SEGMENT (dest) \
328 ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
329 : 0)
330#else
a5324a3e 331#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \
252b5132
RH
332 (SF_GET_GET_SEGMENT (dest) && S_GET_SEGMENT (dest) == SEG_UNKNOWN \
333 ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
334 : 0)
335#endif
2c1c4c62 336#endif
252b5132 337
3b16e843 338/* Sanity check. */
252b5132
RH
339
340#ifdef TC_I960
341#ifndef C_LEAFSTAT
342hey ! Where is the C_LEAFSTAT definition ? i960 - coff support is depending on it.
343#endif /* no C_LEAFSTAT */
344#endif /* TC_I960 */
345
4c63da97
AM
346extern const pseudo_typeS coff_pseudo_table[];
347
348#ifndef obj_pop_insert
349#define obj_pop_insert() pop_insert (coff_pseudo_table)
350#endif
351
252b5132
RH
352/* In COFF, if a symbol is defined using .def/.val SYM/.endef, it's OK
353 to redefine the symbol later on. This can happen if C symbols use
354 a prefix, and a symbol is defined both with and without the prefix,
355 as in start/_start/__start in gcc/libgcc1-test.c. */
356#define RESOLVE_SYMBOL_REDEFINITION(sym) \
357(SF_GET_GET_SEGMENT (sym) \
358 ? (sym->sy_frag = frag_now, \
359 S_SET_VALUE (sym, frag_now_fix ()), \
360 S_SET_SEGMENT (sym, now_seg), \
361 0) \
362 : 0)
363
364/* Stabs in a coff file go into their own section. */
365#define SEPARATE_STAB_SECTIONS 1
366
367/* We need 12 bytes at the start of the section to hold some initial
368 information. */
252b5132
RH
369#define INIT_STAB_SECTION(seg) obj_coff_init_stab_section (seg)
370
945a1a6b
ILT
371/* Store the number of relocations in the section aux entry. */
372#define SET_SECTION_RELOCS(sec, relocs, n) \
373 SA_SET_SCN_NRELOC (section_symbol (sec), n)
374
a5324a3e
NC
375#define obj_app_file(name, app) c_dot_file_symbol (name, app)
376
a5324a3e
NC
377extern int S_SET_DATA_TYPE (symbolS *, int);
378extern int S_SET_STORAGE_CLASS (symbolS *, int);
379extern int S_GET_STORAGE_CLASS (symbolS *);
380extern void SA_SET_SYM_ENDNDX (symbolS *, symbolS *);
381extern void coff_add_linesym (symbolS *);
382extern void c_dot_file_symbol (const char *, int);
383extern void coff_frob_symbol (symbolS *, int *);
384extern void coff_adjust_symtab (void);
385extern void coff_frob_section (segT);
386extern void coff_adjust_section_syms (bfd *, asection *, void *);
387extern void coff_frob_file_after_relocs (void);
a5324a3e
NC
388extern void coff_obj_symbol_new_hook (symbolS *);
389extern void coff_obj_read_begin_hook (void);
06e77878
AO
390#ifdef TE_PE
391extern void pecoff_obj_set_weak_hook (symbolS *);
392extern void pecoff_obj_clear_weak_hook (symbolS *);
393#endif
a5324a3e
NC
394extern void obj_coff_section (int);
395extern segT obj_coff_add_segment (const char *);
396extern void obj_coff_section (int);
397extern void c_dot_file_symbol (const char *, int);
398extern segT s_get_segment (symbolS *);
36bfbdd3 399#ifndef tc_coff_symbol_emit_hook
a5324a3e 400extern void tc_coff_symbol_emit_hook (symbolS *);
36bfbdd3 401#endif
a5324a3e
NC
402extern void obj_coff_pe_handle_link_once (void);
403extern void obj_coff_init_stab_section (segT);
404extern void c_section_header (struct internal_scnhdr *,
405 char *, long, long, long, long,
406 long, long, long, long);
252b5132 407#endif /* OBJ_FORMAT_H */
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