gas/config/obj-coff.h

   1 /* coff object file format
   2    Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   3    1999, 2000, 2001, 2002, 2003, 2004, 2005
   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
  20    Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  21    02111-1307, USA.  */
  22
  23 #ifndef OBJ_FORMAT_H
  24 #define OBJ_FORMAT_H
  25
  26 #define OBJ_COFF 1
  27
  28 #ifndef BFD_ASSEMBLER
  29
  30 #define WORKING_DOT_WORD
  31 #define WARN_SIGNED_OVERFLOW_WORD
  32 #define OBJ_COFF_OMIT_OPTIONAL_HEADER
  33 #define BFD_HEADERS
  34 #define BFD
  35
  36 #endif
  37
  38 #include "targ-cpu.h"
  39
  40 #include "bfd.h"
  41
  42 /* This internal_lineno crap is to stop namespace pollution from the
  43    bfd internal coff headerfile.  */
  44 #define internal_lineno bfd_internal_lineno
  45 #include "coff/internal.h"
  46 #undef internal_lineno
  47
  48 /* CPU-specific setup:  */
  49
  50 #ifdef TC_ARM
  51 #include "coff/arm.h"
  52 #ifndef TARGET_FORMAT
  53 #define TARGET_FORMAT "coff-arm"
  54 #endif
  55 #endif
  56
  57 #ifdef TC_PPC
  58 #ifdef TE_PE
  59 #include "coff/powerpc.h"
  60 #else
  61 #include "coff/rs6000.h"
  62 #endif
  63 #endif
  64
  65 #ifdef TC_SPARC
  66 #include "coff/sparc.h"
  67 #endif
  68
  69 #ifdef TC_I386
  70 #include "coff/i386.h"
  71
  72 #ifdef TE_PE
  73 #define TARGET_FORMAT "pe-i386"
  74 #endif
  75
  76 #ifndef TARGET_FORMAT
  77 #define TARGET_FORMAT "coff-i386"
  78 #endif
  79 #endif
  80
  81 #ifdef TC_M68K
  82 #include "coff/m68k.h"
  83 #ifndef TARGET_FORMAT
  84 #define TARGET_FORMAT "coff-m68k"
  85 #endif
  86 #endif
  87
  88 #ifdef TC_A29K
  89 #include "coff/a29k.h"
  90 #define TARGET_FORMAT "coff-a29k-big"
  91 #endif
  92
  93 #ifdef TC_OR32
  94 #include "coff/or32.h"
  95 #define TARGET_FORMAT "coff-or32-big"
  96 #endif
  97
  98 #ifdef TC_I960
  99 #include "coff/i960.h"
 100 #define TARGET_FORMAT "coff-Intel-little"
 101 #endif
 102
 103 #ifdef TC_Z8K
 104 #include "coff/z8k.h"
 105 #define TARGET_FORMAT "coff-z8k"
 106 #endif
 107
 108 #ifdef TC_H8300
 109 #include "coff/h8300.h"
 110 #define TARGET_FORMAT "coff-h8300"
 111 #endif
 112
 113 #ifdef TC_H8500
 114 #include "coff/h8500.h"
 115 #define TARGET_FORMAT "coff-h8500"
 116 #endif
 117
 118 #ifdef TC_MAXQ20
 119 #include "coff/maxq.h"
 120 #define TARGET_FORMAT "coff-maxq"
 121 #endif
 122
 123 #ifdef TC_SH
 124
 125 #ifdef TE_PE
 126 #define COFF_WITH_PE
 127 #endif
 128
 129 #include "coff/sh.h"
 130
 131 #ifdef TE_PE
 132 #define TARGET_FORMAT "pe-shl"
 133 #else
 134
 135 #define TARGET_FORMAT                                   \
 136   (!target_big_endian                                   \
 137    ? (sh_small ? "coff-shl-small" : "coff-shl")         \
 138    : (sh_small ? "coff-sh-small" : "coff-sh"))
 139
 140 #endif
 141 #endif
 142
 143 #ifdef TC_MIPS
 144 #define COFF_WITH_PE
 145 #include "coff/mipspe.h"
 146 #undef  TARGET_FORMAT
 147 #define TARGET_FORMAT "pe-mips"
 148 #endif
 149
 150 #ifdef TC_M88K
 151 #include "coff/m88k.h"
 152 #define TARGET_FORMAT "coff-m88kbcs"
 153 #endif
 154
 155 #ifdef TC_W65
 156 #include "coff/w65.h"
 157 #define TARGET_FORMAT "coff-w65"
 158 #endif
 159
 160 #ifdef TC_TIC30
 161 #include "coff/tic30.h"
 162 #define TARGET_FORMAT "coff-tic30"
 163 #endif
 164
 165 #ifdef TC_TIC4X
 166 #include "coff/tic4x.h"
 167 #define TARGET_FORMAT "coff2-tic4x"
 168 #endif
 169
 170 #ifdef TC_TIC54X
 171 #include "coff/tic54x.h"
 172 #define TARGET_FORMAT "coff1-c54x"
 173 #endif
 174
 175 #ifdef TC_TIC80
 176 #include "coff/tic80.h"
 177 #define TARGET_FORMAT "coff-tic80"
 178 #define ALIGNMENT_IN_S_FLAGS 1
 179 #endif
 180
 181 #ifdef TC_MCORE
 182 #include "coff/mcore.h"
 183 #ifndef TARGET_FORMAT
 184 #define TARGET_FORMAT "pe-mcore"
 185 #endif
 186 #endif
 187
 188 #ifdef TE_PE
 189 /* PE weak symbols need USE_UNIQUE.  */
 190 #define USE_UNIQUE 1
 191 #endif
 192
 193 /* Targets may also set this.  Also, if BFD_ASSEMBLER is defined, this
 194    will already have been defined.  */
 195 #undef  SYMBOLS_NEED_BACKPOINTERS
 196 #define SYMBOLS_NEED_BACKPOINTERS 1
 197
 198 #ifndef OBJ_COFF_MAX_AUXENTRIES
 199 #define OBJ_COFF_MAX_AUXENTRIES 1
 200 #endif
 201
 202 #define obj_symbol_new_hook coff_obj_symbol_new_hook
 203 #define obj_read_begin_hook coff_obj_read_begin_hook
 204
 205 /* This file really contains two implementations of the COFF back end.
 206    They are in the process of being merged, but this is only a
 207    preliminary, mechanical merging.  Many definitions that are
 208    identical between the two are still found in both versions.
 209
 210    The first version, with BFD_ASSEMBLER defined, uses high-level BFD
 211    interfaces and data structures.  The second version, with
 212    BFD_ASSEMBLER not defined, also uses BFD, but mostly for swapping
 213    data structures and for doing the actual I/O.  The latter defines
 214    the preprocessor symbols BFD and BFD_HEADERS.  Try not to let this
 215    confuse you.
 216
 217    These two are in the process of being merged, and eventually the
 218    BFD_ASSEMBLER version should take over completely.  Release timing
 219    issues and namespace problems convinced me to merge the two
 220    together in this fashion, a little sooner than I would have liked.
 221    The real merge should be much better done by the time the next
 222    release comes out.
 223
 224    For now, the structure of this file is:
 225         <common>
 226         #ifdef BFD_ASSEMBLER
 227         <one version>
 228         #else
 229         <other version>
 230         #endif
 231         <common>
 232    Unfortunately, the common portions are very small at the moment,
 233    and many declarations or definitions are duplicated.  The structure
 234    of obj-coff.c is similar.
 235
 236    See doc/internals.texi for a brief discussion of the history, if
 237    you care.
 238
 239    Ken Raeburn, 5 May 1994.  */
 240
 241 #ifdef BFD_ASSEMBLER
 242
 243 #include "bfd/libcoff.h"
 244
 245 #define OUTPUT_FLAVOR bfd_target_coff_flavour
 246
 247 /* Alter the field names, for now, until we've fixed up the other
 248    references to use the new name.  */
 249 #ifdef TC_I960
 250 #define TC_SYMFIELD_TYPE        symbolS *
 251 #define sy_tc                   bal
 252 #endif
 253
 254 #define OBJ_SYMFIELD_TYPE       unsigned long
 255 #define sy_obj                  sy_flags
 256
 257 /* We can't use the predefined section symbols in bfd/section.c, as
 258    COFF symbols have extra fields.  See bfd/libcoff.h:coff_symbol_type.  */
 259 #ifndef obj_sec_sym_ok_for_reloc
 260 #define obj_sec_sym_ok_for_reloc(SEC)   ((SEC)->owner != 0)
 261 #endif
 262
 263 #define SYM_AUXENT(S) \
 264   (&coffsymbol (symbol_get_bfdsym (S))->native[1].u.auxent)
 265 #define SYM_AUXINFO(S) \
 266   (&coffsymbol (symbol_get_bfdsym (S))->native[1])
 267
 268 #define DO_NOT_STRIP    0
 269
 270 /* The number of auxiliary entries.  */
 271 #define S_GET_NUMBER_AUXILIARY(s) \
 272   (coffsymbol (symbol_get_bfdsym (s))->native->u.syment.n_numaux)
 273 /* The number of auxiliary entries.  */
 274 #define S_SET_NUMBER_AUXILIARY(s, v)    (S_GET_NUMBER_AUXILIARY (s) = (v))
 275
 276 /* True if a symbol name is in the string table, i.e. its length is > 8.  */
 277 #define S_IS_STRING(s)          (strlen (S_GET_NAME (s)) > 8 ? 1 : 0)
 278
 279 /* Auxiliary entry macros. SA_ stands for symbol auxiliary.  */
 280 /* Omit the tv related fields.  */
 281 /* Accessors.  */
 282
 283 #define SA_GET_SYM_TAGNDX(s)    (SYM_AUXENT (s)->x_sym.x_tagndx.l)
 284 #define SA_GET_SYM_LNNO(s)      (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno)
 285 #define SA_GET_SYM_SIZE(s)      (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size)
 286 #define SA_GET_SYM_FSIZE(s)     (SYM_AUXENT (s)->x_sym.x_misc.x_fsize)
 287 #define SA_GET_SYM_LNNOPTR(s)   (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr)
 288 #define SA_GET_SYM_ENDNDX(s)    (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx)
 289 #define SA_GET_SYM_DIMEN(s,i)   (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)])
 290 #define SA_GET_FILE_FNAME(s)    (SYM_AUXENT (s)->x_file.x_fname)
 291 #define SA_GET_SCN_SCNLEN(s)    (SYM_AUXENT (s)->x_scn.x_scnlen)
 292 #define SA_GET_SCN_NRELOC(s)    (SYM_AUXENT (s)->x_scn.x_nreloc)
 293 #define SA_GET_SCN_NLINNO(s)    (SYM_AUXENT (s)->x_scn.x_nlinno)
 294
 295 #define SA_SET_SYM_LNNO(s,v)    (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno = (v))
 296 #define SA_SET_SYM_SIZE(s,v)    (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size = (v))
 297 #define SA_SET_SYM_FSIZE(s,v)   (SYM_AUXENT (s)->x_sym.x_misc.x_fsize = (v))
 298 #define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr = (v))
 299 #define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)] = (v))
 300 #define SA_SET_FILE_FNAME(s,v)  strncpy (SYM_AUXENT (s)->x_file.x_fname, (v), FILNMLEN)
 301 #define SA_SET_SCN_SCNLEN(s,v)  (SYM_AUXENT (s)->x_scn.x_scnlen = (v))
 302 #define SA_SET_SCN_NRELOC(s,v)  (SYM_AUXENT (s)->x_scn.x_nreloc = (v))
 303 #define SA_SET_SCN_NLINNO(s,v)  (SYM_AUXENT (s)->x_scn.x_nlinno = (v))
 304
 305 /* Internal use only definitions. SF_ stands for symbol flags.
 306
 307    These values can be assigned to sy_symbol.ost_flags field of a symbolS.
 308
 309    You'll break i960 if you shift the SYSPROC bits anywhere else.  for
 310    more on the balname/callname hack, see tc-i960.h.  b.out is done
 311    differently.  */
 312
 313 #define SF_I960_MASK    0x000001ff      /* Bits 0-8 are used by the i960 port.  */
 314 #define SF_SYSPROC      0x0000003f      /* bits 0-5 are used to store the sysproc number.  */
 315 #define SF_IS_SYSPROC   0x00000040      /* bit 6 marks symbols that are sysprocs.  */
 316 #define SF_BALNAME      0x00000080      /* bit 7 marks BALNAME symbols.  */
 317 #define SF_CALLNAME     0x00000100      /* bit 8 marks CALLNAME symbols.  */
 318
 319 #define SF_NORMAL_MASK  0x0000ffff      /* bits 12-15 are general purpose.  */
 320
 321 #define SF_STATICS      0x00001000      /* Mark the .text & all symbols.  */
 322 #define SF_DEFINED      0x00002000      /* Symbol is defined in this file.  */
 323 #define SF_STRING       0x00004000      /* Symbol name length > 8.  */
 324 #define SF_LOCAL        0x00008000      /* Symbol must not be emitted.  */
 325
 326 #define SF_DEBUG_MASK   0xffff0000      /* bits 16-31 are debug info.  */
 327
 328 #define SF_FUNCTION     0x00010000      /* The symbol is a function.  */
 329 #define SF_PROCESS      0x00020000      /* Process symbol before write.  */
 330 #define SF_TAGGED       0x00040000      /* Is associated with a tag.  */
 331 #define SF_TAG          0x00080000      /* Is a tag.  */
 332 #define SF_DEBUG        0x00100000      /* Is in debug or abs section.  */
 333 #define SF_GET_SEGMENT  0x00200000      /* Get the section of the forward symbol.  */
 334 /* All other bits are unused.  */
 335
 336 /* Accessors.  */
 337 #define SF_GET(s)               (* symbol_get_obj (s))
 338 #define SF_GET_DEBUG(s)         (symbol_get_bfdsym (s)->flags & BSF_DEBUGGING)
 339 #define SF_SET_DEBUG(s)         (symbol_get_bfdsym (s)->flags |= BSF_DEBUGGING)
 340 #define SF_GET_NORMAL_FIELD(s)  (SF_GET (s) & SF_NORMAL_MASK)
 341 #define SF_GET_DEBUG_FIELD(s)   (SF_GET (s) & SF_DEBUG_MASK)
 342 #define SF_GET_FILE(s)          (SF_GET (s) & SF_FILE)
 343 #define SF_GET_STATICS(s)       (SF_GET (s) & SF_STATICS)
 344 #define SF_GET_DEFINED(s)       (SF_GET (s) & SF_DEFINED)
 345 #define SF_GET_STRING(s)        (SF_GET (s) & SF_STRING)
 346 #define SF_GET_LOCAL(s)         (SF_GET (s) & SF_LOCAL)
 347 #define SF_GET_FUNCTION(s)      (SF_GET (s) & SF_FUNCTION)
 348 #define SF_GET_PROCESS(s)       (SF_GET (s) & SF_PROCESS)
 349 #define SF_GET_TAGGED(s)        (SF_GET (s) & SF_TAGGED)
 350 #define SF_GET_TAG(s)           (SF_GET (s) & SF_TAG)
 351 #define SF_GET_GET_SEGMENT(s)   (SF_GET (s) & SF_GET_SEGMENT)
 352 #define SF_GET_I960(s)          (SF_GET (s) & SF_I960_MASK)     /* Used by i960.  */
 353 #define SF_GET_BALNAME(s)       (SF_GET (s) & SF_BALNAME)       /* Used by i960.  */
 354 #define SF_GET_CALLNAME(s)      (SF_GET (s) & SF_CALLNAME)      /* Used by i960.  */
 355 #define SF_GET_IS_SYSPROC(s)    (SF_GET (s) & SF_IS_SYSPROC)    /* Used by i960.  */
 356 #define SF_GET_SYSPROC(s)       (SF_GET (s) & SF_SYSPROC)       /* Used by i960.  */
 357
 358 /* Modifiers.  */
 359 #define SF_SET(s,v)             (SF_GET (s) = (v))
 360 #define SF_SET_NORMAL_FIELD(s,v)(SF_GET (s) |= ((v) & SF_NORMAL_MASK))
 361 #define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK))
 362 #define SF_SET_FILE(s)          (SF_GET (s) |= SF_FILE)
 363 #define SF_SET_STATICS(s)       (SF_GET (s) |= SF_STATICS)
 364 #define SF_SET_DEFINED(s)       (SF_GET (s) |= SF_DEFINED)
 365 #define SF_SET_STRING(s)        (SF_GET (s) |= SF_STRING)
 366 #define SF_SET_LOCAL(s)         (SF_GET (s) |= SF_LOCAL)
 367 #define SF_CLEAR_LOCAL(s)       (SF_GET (s) &= ~SF_LOCAL)
 368 #define SF_SET_FUNCTION(s)      (SF_GET (s) |= SF_FUNCTION)
 369 #define SF_SET_PROCESS(s)       (SF_GET (s) |= SF_PROCESS)
 370 #define SF_SET_TAGGED(s)        (SF_GET (s) |= SF_TAGGED)
 371 #define SF_SET_TAG(s)           (SF_GET (s) |= SF_TAG)
 372 #define SF_SET_GET_SEGMENT(s)   (SF_GET (s) |= SF_GET_SEGMENT)
 373 #define SF_SET_I960(s,v)        (SF_GET (s) |= ((v) & SF_I960_MASK))    /* Used by i960.  */
 374 #define SF_SET_BALNAME(s)       (SF_GET (s) |= SF_BALNAME)              /* Used by i960.  */
 375 #define SF_SET_CALLNAME(s)      (SF_GET (s) |= SF_CALLNAME)             /* Used by i960.  */
 376 #define SF_SET_IS_SYSPROC(s)    (SF_GET (s) |= SF_IS_SYSPROC)           /* Used by i960.  */
 377 #define SF_SET_SYSPROC(s,v)     (SF_GET (s) |= ((v) & SF_SYSPROC))      /* Used by i960.  */
 378
 379
 380 /*  Line number handling.  */
 381 extern int text_lineno_number;
 382 extern int coff_line_base;
 383 extern int coff_n_line_nos;
 384 extern symbolS *coff_last_function;
 385
 386 #define obj_emit_lineno(WHERE, LINE, FILE_START)        abort ()
 387 #define obj_app_file(name, app)      c_dot_file_symbol (name, app)
 388 #define obj_frob_symbol(S,P)         coff_frob_symbol (S, & P)
 389 #define obj_frob_section(S)          coff_frob_section (S)
 390 #define obj_frob_file_after_relocs() coff_frob_file_after_relocs ()
 391 #ifndef obj_adjust_symtab
 392 #define obj_adjust_symtab()          coff_adjust_symtab ()
 393 #endif
 394
 395 /* Forward the segment of a forwarded symbol, handle assignments that
 396    just copy symbol values, etc.  */
 397 #ifndef OBJ_COPY_SYMBOL_ATTRIBUTES
 398 #ifndef TE_I386AIX
 399 #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \
 400   (SF_GET_GET_SEGMENT (dest) \
 401    ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
 402    : 0)
 403 #else
 404 #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \
 405   (SF_GET_GET_SEGMENT (dest) && S_GET_SEGMENT (dest) == SEG_UNKNOWN \
 406    ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
 407    : 0)
 408 #endif
 409 #endif
 410
 411 /* Sanity check.  */
 412
 413 #ifdef TC_I960
 414 #ifndef C_LEAFSTAT
 415 hey ! Where is the C_LEAFSTAT definition ? i960 - coff support is depending on it.
 416 #endif /* no C_LEAFSTAT */
 417 #endif /* TC_I960 */
 418
 419 #else /* not BFD_ASSEMBLER */
 420
 421 #if defined TC_A29K || defined TC_OR32
 422 /* Allow translate from aout relocs to coff relocs.  */
 423 #define NO_RELOC 20
 424 #define RELOC_32 1
 425 #define RELOC_8 2
 426 #define RELOC_CONST 3
 427 #define RELOC_CONSTH 4
 428 #define RELOC_JUMPTARG 5
 429 #define RELOC_BASE22 6
 430 #define RELOC_HI22 7
 431 #define RELOC_LO10 8
 432 #define RELOC_BASE13 9
 433 #define RELOC_WDISP22 10
 434 #define RELOC_WDISP30 11
 435 #endif
 436
 437 extern const segT N_TYPE_seg[];
 438
 439 /* Magic number of paged executable.  */
 440 #define DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE    0x8300
 441
 442 /* SYMBOL TABLE */
 443
 444 /* Symbol table entry data type.  */
 445
 446 typedef struct
 447 {
 448   /* Basic symbol.  */
 449   struct internal_syment ost_entry;
 450   /* Auxiliary entry.  */
 451   union internal_auxent ost_auxent[OBJ_COFF_MAX_AUXENTRIES];
 452   /* obj_coff internal use only flags.  */
 453   unsigned int ost_flags;
 454 } obj_symbol_type;
 455
 456 #ifndef DO_NOT_STRIP
 457 #define DO_NOT_STRIP    0
 458 #endif
 459 /* Symbol table macros and constants.  */
 460
 461 /* Possible and useful section number in symbol table
 462    The values of TEXT, DATA and BSS may not be portable.  */
 463
 464 #define C_ABS_SECTION           N_ABS
 465 #define C_UNDEF_SECTION         N_UNDEF
 466 #define C_DEBUG_SECTION         N_DEBUG
 467 #define C_NTV_SECTION           N_TV
 468 #define C_PTV_SECTION           P_TV
 469 #define C_REGISTER_SECTION      50
 470
 471 /* Macros to extract information from a symbol table entry.
 472    This syntactic indirection allows independence regarding a.out or coff.
 473    The argument (s) of all these macros is a pointer to a symbol table entry.  */
 474
 475 /* Predicates.  */
 476 /* True if the symbol is external.  */
 477 #define S_IS_EXTERNAL(s)  \
 478   ((s)->sy_symbol.ost_entry.n_scnum == C_UNDEF_SECTION)
 479
 480 /* True if symbol has been defined, ie :
 481    section > 0 (DATA, TEXT or BSS)
 482    section == 0 and value > 0 (external bss symbol).  */
 483 #define S_IS_DEFINED(s) \
 484   ((s)->sy_symbol.ost_entry.n_scnum > C_UNDEF_SECTION \
 485    || ((s)->sy_symbol.ost_entry.n_scnum == C_UNDEF_SECTION \
 486        && S_GET_VALUE (s) > 0) \
 487    || ((s)->sy_symbol.ost_entry.n_scnum == C_ABS_SECTION))
 488
 489 /* Return true for symbols that should not be reduced to section
 490    symbols or eliminated from expressions, because they may be
 491    overridden by the linker.  */
 492 #define S_FORCE_RELOC(s, strict) \
 493   (!SEG_NORMAL (S_GET_SEGMENT (s)) || (strict && S_IS_WEAK (s)))
 494
 495 /* True if a debug special symbol entry.  */
 496 #define S_IS_DEBUG(s) \
 497   ((s)->sy_symbol.ost_entry.n_scnum == C_DEBUG_SECTION)
 498
 499 /* True if a symbol is local symbol name.  */
 500 /* A symbol name whose name includes ^A is a gas internal pseudo symbol.  */
 501 #define S_IS_LOCAL(s) \
 502   ((s)->sy_symbol.ost_entry.n_scnum == C_REGISTER_SECTION \
 503    || (S_LOCAL_NAME(s) && ! flag_keep_locals && ! S_IS_DEBUG (s)) \
 504    || strchr (S_GET_NAME (s), '\001') != NULL \
 505    || strchr (S_GET_NAME (s), '\002') != NULL \
 506    || (flag_strip_local_absolute \
 507        && !S_IS_EXTERNAL (s) \
 508        && (s)->sy_symbol.ost_entry.n_scnum == C_ABS_SECTION))
 509
 510 /* True if a symbol is not defined in this file.  */
 511 #define S_IS_EXTERN(s)          ((s)->sy_symbol.ost_entry.n_scnum == 0 \
 512                                  && S_GET_VALUE (s) == 0)
 513
 514 /* True if a symbol can be multiply defined (bss symbols have this def
 515    though it is bad practice).  */
 516 #define S_IS_COMMON(s)          ((s)->sy_symbol.ost_entry.n_scnum == 0 \
 517                                  && S_GET_VALUE (s) != 0)
 518
 519 /* True if a symbol name is in the string table, i.e. its length is > 8.  */
 520 #define S_IS_STRING(s)          (strlen (S_GET_NAME (s)) > 8 ? 1 : 0)
 521
 522 /* True if a symbol is defined as weak.  */
 523 #ifdef TE_PE
 524 #define S_IS_WEAK(s) \
 525   (   (s)->sy_symbol.ost_entry.n_sclass == C_NT_WEAK \
 526    || (s)->sy_symbol.ost_entry.n_sclass == C_WEAKEXT)
 527 #else
 528 #define S_IS_WEAK(s) \
 529   ((s)->sy_symbol.ost_entry.n_sclass == C_WEAKEXT)
 530 #endif
 531
 532 /* Accessors.  */
 533 /* The name of the symbol.  */
 534 #define S_GET_NAME(s)           ((char *) (s)->sy_symbol.ost_entry.n_offset)
 535
 536 /* The pointer to the string table.  */
 537 #define S_GET_OFFSET(s)         ((s)->sy_symbol.ost_entry.n_offset)
 538
 539 /* The numeric value of the segment.  */
 540 #define S_GET_SEGMENT(s)        s_get_segment (s)
 541
 542 /* The data type.  */
 543 #define S_GET_DATA_TYPE(s)      ((s)->sy_symbol.ost_entry.n_type)
 544
 545 /* The storage class.  */
 546 #define S_GET_STORAGE_CLASS(s)  ((s)->sy_symbol.ost_entry.n_sclass)
 547
 548 /* The number of auxiliary entries.  */
 549 #define S_GET_NUMBER_AUXILIARY(s)       ((s)->sy_symbol.ost_entry.n_numaux)
 550
 551 /* Modifiers.  */
 552 /* Set the name of the symbol.  */
 553 #define S_SET_NAME(s, v) \
 554   ((s)->sy_symbol.ost_entry.n_offset = (unsigned long) (v))
 555
 556 /* Set the offset of the symbol.  */
 557 #define S_SET_OFFSET(s, v) \
 558   ((s)->sy_symbol.ost_entry.n_offset = (v))
 559
 560 /* The numeric value of the segment.  */
 561 #define S_SET_SEGMENT(s, v) \
 562   ((s)->sy_symbol.ost_entry.n_scnum = SEGMENT_TO_SYMBOL_TYPE (v))
 563
 564 /* The data type.  */
 565 #define S_SET_DATA_TYPE(s, v) \
 566   ((s)->sy_symbol.ost_entry.n_type = (v))
 567
 568 /* The storage class.  */
 569 #define S_SET_STORAGE_CLASS(s, v) \
 570   ((s)->sy_symbol.ost_entry.n_sclass = (v))
 571
 572 /* The number of auxiliary entries.  */
 573 #define S_SET_NUMBER_AUXILIARY(s, v) \
 574   ((s)->sy_symbol.ost_entry.n_numaux = (v))
 575
 576 /* Additional modifiers.  */
 577 /* The symbol is external (does not mean undefined).  */
 578 #define S_SET_EXTERNAL(s) \
 579   do \
 580     { \
 581       S_SET_STORAGE_CLASS (s, C_EXT); \
 582       SF_CLEAR_LOCAL (s); \
 583     } \
 584   while (0)
 585
 586 /* Auxiliary entry macros. SA_ stands for symbol auxiliary.  */
 587 /* Omit the tv related fields.  */
 588 /* Accessors.  */
 589 #define SYM_AUXENT(S)           (&(S)->sy_symbol.ost_auxent[0])
 590
 591 #define SA_GET_SYM_TAGNDX(s)    (SYM_AUXENT (s)->x_sym.x_tagndx.l)
 592 #define SA_GET_SYM_LNNO(s)      (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno)
 593 #define SA_GET_SYM_SIZE(s)      (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size)
 594 #define SA_GET_SYM_FSIZE(s)     (SYM_AUXENT (s)->x_sym.x_misc.x_fsize)
 595 #define SA_GET_SYM_LNNOPTR(s)   (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr)
 596 #define SA_GET_SYM_ENDNDX(s)    (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx.l)
 597 #define SA_GET_SYM_DIMEN(s,i)   (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)])
 598 #define SA_GET_FILE_FNAME(s)    (SYM_AUXENT (s)->x_file.x_fname)
 599 #define SA_GET_FILE_FNAME_OFFSET(s)  (SYM_AUXENT (s)->x_file.x_n.x_offset)
 600 #define SA_GET_FILE_FNAME_ZEROS(s)   (SYM_AUXENT (s)->x_file.x_n.x_zeroes)
 601 #define SA_GET_SCN_SCNLEN(s)    (SYM_AUXENT (s)->x_scn.x_scnlen)
 602 #define SA_GET_SCN_NRELOC(s)    (SYM_AUXENT (s)->x_scn.x_nreloc)
 603 #define SA_GET_SCN_NLINNO(s)    (SYM_AUXENT (s)->x_scn.x_nlinno)
 604
 605 /* Modifiers.  */
 606 #define SA_SET_SYM_TAGNDX(s,v)  (SYM_AUXENT (s)->x_sym.x_tagndx.l = (v))
 607 #define SA_SET_SYM_LNNO(s,v)    (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno = (v))
 608 #define SA_SET_SYM_SIZE(s,v)    (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size = (v))
 609 #define SA_SET_SYM_FSIZE(s,v)   (SYM_AUXENT (s)->x_sym.x_misc.x_fsize = (v))
 610 #define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr = (v))
 611 #define SA_SET_SYM_ENDNDX(s,v)  (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx.l = (v))
 612 #define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)] = (v))
 613 #define SA_SET_FILE_FNAME(s,v)  strncpy (SYM_AUXENT (s)->x_file.x_fname,(v),FILNMLEN)
 614 #define SA_SET_FILE_FNAME_OFFSET(s,v) (SYM_AUXENT (s)->x_file.x_n.x_offset = (v))
 615 #define SA_SET_FILE_FNAME_ZEROS(s,v)  (SYM_AUXENT (s)->x_file.x_n.x_zeroes = (v))
 616 #define SA_SET_SCN_SCNLEN(s,v)  (SYM_AUXENT (s)->x_scn.x_scnlen = (v))
 617 #define SA_SET_SCN_NRELOC(s,v)  (SYM_AUXENT (s)->x_scn.x_nreloc = (v))
 618 #define SA_SET_SCN_NLINNO(s,v)  (SYM_AUXENT (s)->x_scn.x_nlinno = (v))
 619
 620 /* Internal use only definitions. SF_ stands for symbol flags.
 621
 622    These values can be assigned to sy_symbol.ost_flags field of a symbolS.
 623
 624    You'll break i960 if you shift the SYSPROC bits anywhere else.  for
 625    more on the balname/callname hack, see tc-i960.h.  b.out is done
 626    differently.  */
 627
 628 #define SF_I960_MASK    0x000001ff      /* Bits 0-8 are used by the i960 port.  */
 629 #define SF_SYSPROC      0x0000003f      /* bits 0-5 are used to store the sysproc number.  */
 630 #define SF_IS_SYSPROC   0x00000040      /* bit 6 marks symbols that are sysprocs.  */
 631 #define SF_BALNAME      0x00000080      /* bit 7 marks BALNAME symbols.  */
 632 #define SF_CALLNAME     0x00000100      /* bit 8 marks CALLNAME symbols.  */
 633
 634 #define SF_NORMAL_MASK  0x0000ffff      /* bits 12-15 are general purpose.  */
 635
 636 #define SF_STATICS      0x00001000      /* Mark the .text & all symbols.  */
 637 #define SF_DEFINED      0x00002000      /* Symbol is defined in this file.  */
 638 #define SF_STRING       0x00004000      /* Symbol name length > 8.  */
 639 #define SF_LOCAL        0x00008000      /* Symbol must not be emitted.  */
 640
 641 #define SF_DEBUG_MASK   0xffff0000      /* bits 16-31 are debug info.  */
 642
 643 #define SF_FUNCTION     0x00010000      /* The symbol is a function.  */
 644 #define SF_PROCESS      0x00020000      /* Process symbol before write.  */
 645 #define SF_TAGGED       0x00040000      /* Is associated with a tag.  */
 646 #define SF_TAG          0x00080000      /* Is a tag.  */
 647 #define SF_DEBUG        0x00100000      /* Is in debug or abs section.  */
 648 #define SF_GET_SEGMENT  0x00200000      /* Get the section of the forward symbol.  */
 649 #define SF_ADJ_LNNOPTR  0x00400000      /* Has a lnnoptr.  */
 650 /* All other bits are unused.  */
 651
 652 /* Accessors.  */
 653 #define SF_GET(s)               ((s)->sy_symbol.ost_flags)
 654 #define SF_GET_NORMAL_FIELD(s)  (SF_GET (s) & SF_NORMAL_MASK)
 655 #define SF_GET_DEBUG_FIELD(s)   (SF_GET (s) & SF_DEBUG_MASK)
 656 #define SF_GET_FILE(s)          (SF_GET (s) & SF_FILE)
 657 #define SF_GET_STATICS(s)       (SF_GET (s) & SF_STATICS)
 658 #define SF_GET_DEFINED(s)       (SF_GET (s) & SF_DEFINED)
 659 #define SF_GET_STRING(s)        (SF_GET (s) & SF_STRING)
 660 #define SF_GET_LOCAL(s)         (SF_GET (s) & SF_LOCAL)
 661 #define SF_GET_FUNCTION(s)      (SF_GET (s) & SF_FUNCTION)
 662 #define SF_GET_PROCESS(s)       (SF_GET (s) & SF_PROCESS)
 663 #define SF_GET_DEBUG(s)         (SF_GET (s) & SF_DEBUG)
 664 #define SF_GET_TAGGED(s)        (SF_GET (s) & SF_TAGGED)
 665 #define SF_GET_TAG(s)           (SF_GET (s) & SF_TAG)
 666 #define SF_GET_GET_SEGMENT(s)   (SF_GET (s) & SF_GET_SEGMENT)
 667 #define SF_GET_ADJ_LNNOPTR(s)   (SF_GET (s) & SF_ADJ_LNNOPTR)
 668 #define SF_GET_I960(s)          (SF_GET (s) & SF_I960_MASK)     /* Used by i960.  */
 669 #define SF_GET_BALNAME(s)       (SF_GET (s) & SF_BALNAME)       /* Used by i960.  */
 670 #define SF_GET_CALLNAME(s)      (SF_GET (s) & SF_CALLNAME)      /* Used by i960.  */
 671 #define SF_GET_IS_SYSPROC(s)    (SF_GET (s) & SF_IS_SYSPROC)    /* Used by i960.  */
 672 #define SF_GET_SYSPROC(s)       (SF_GET (s) & SF_SYSPROC)       /* Used by i960.  */
 673
 674 /* Modifiers.  */
 675 #define SF_SET(s,v)             (SF_GET (s) = (v))
 676 #define SF_SET_NORMAL_FIELD(s,v)(SF_GET (s) |= ((v) & SF_NORMAL_MASK))
 677 #define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK))
 678 #define SF_SET_FILE(s)          (SF_GET (s) |= SF_FILE)
 679 #define SF_SET_STATICS(s)       (SF_GET (s) |= SF_STATICS)
 680 #define SF_SET_DEFINED(s)       (SF_GET (s) |= SF_DEFINED)
 681 #define SF_SET_STRING(s)        (SF_GET (s) |= SF_STRING)
 682 #define SF_SET_LOCAL(s)         (SF_GET (s) |= SF_LOCAL)
 683 #define SF_CLEAR_LOCAL(s)       (SF_GET (s) &= ~SF_LOCAL)
 684 #define SF_SET_FUNCTION(s)      (SF_GET (s) |= SF_FUNCTION)
 685 #define SF_SET_PROCESS(s)       (SF_GET (s) |= SF_PROCESS)
 686 #define SF_SET_DEBUG(s)         (SF_GET (s) |= SF_DEBUG)
 687 #define SF_SET_TAGGED(s)        (SF_GET (s) |= SF_TAGGED)
 688 #define SF_SET_TAG(s)           (SF_GET (s) |= SF_TAG)
 689 #define SF_SET_GET_SEGMENT(s)   (SF_GET (s) |= SF_GET_SEGMENT)
 690 #define SF_SET_ADJ_LNNOPTR(s)   (SF_GET (s) |= SF_ADJ_LNNOPTR)
 691 #define SF_SET_I960(s,v)        (SF_GET (s) |= ((v) & SF_I960_MASK))    /* Used by i960.  */
 692 #define SF_SET_BALNAME(s)       (SF_GET (s) |= SF_BALNAME)              /* Used by i960.  */
 693 #define SF_SET_CALLNAME(s)      (SF_GET (s) |= SF_CALLNAME)             /* Used by i960.  */
 694 #define SF_SET_IS_SYSPROC(s)    (SF_GET (s) |= SF_IS_SYSPROC)           /* Used by i960.  */
 695 #define SF_SET_SYSPROC(s,v)     (SF_GET (s) |= ((v) & SF_SYSPROC))      /* Used by i960.  */
 696
 697 /* File header macro and type definition.  */
 698
 699 /* File position calculators. Beware to use them when all the
 700    appropriate fields are set in the header.  */
 701
 702 #ifdef OBJ_COFF_OMIT_OPTIONAL_HEADER
 703 #define OBJ_COFF_AOUTHDRSZ (0)
 704 #else
 705 #define OBJ_COFF_AOUTHDRSZ (AOUTHDRSZ)
 706 #endif
 707
 708 #define H_GET_TEXT_FILE_OFFSET(h) \
 709     (long) (FILHSZ \
 710            + OBJ_COFF_AOUTHDRSZ \
 711            + H_GET_NUMBER_OF_SECTIONS (h) * SCNHSZ)
 712
 713 #define H_GET_DATA_FILE_OFFSET(h) \
 714     (long) (H_GET_TEXT_FILE_OFFSET (h) \
 715            + H_GET_TEXT_SIZE (h))
 716
 717 #define H_GET_BSS_FILE_OFFSET(h) 0
 718
 719 #define H_GET_RELOCATION_FILE_OFFSET(h) \
 720     (long) (H_GET_DATA_FILE_OFFSET (h) \
 721            + H_GET_DATA_SIZE (h))
 722
 723 #define H_GET_LINENO_FILE_OFFSET(h) \
 724     (long) (H_GET_RELOCATION_FILE_OFFSET (h) \
 725            + H_GET_RELOCATION_SIZE (h))
 726
 727 #define H_GET_SYMBOL_TABLE_FILE_OFFSET(h) \
 728     (long) (H_GET_LINENO_FILE_OFFSET (h) \
 729            + H_GET_LINENO_SIZE (h))
 730
 731 #define H_GET_FILE_SIZE(h) \
 732     (long) (H_GET_SYMBOL_TABLE_FILE_OFFSET (h) \
 733            + H_GET_SYMBOL_TABLE_SIZE (h) \
 734            + (h)->string_table_size)
 735
 736 /* Accessors.  */
 737 /* aouthdr.  */
 738 #define H_GET_MAGIC_NUMBER(h)           ((h)->aouthdr.magic)
 739 #define H_GET_VERSION_STAMP(h)          ((h)->aouthdr.vstamp)
 740 #define H_GET_TEXT_SIZE(h)              ((h)->aouthdr.tsize)
 741 #define H_GET_DATA_SIZE(h)              ((h)->aouthdr.dsize)
 742 #define H_GET_BSS_SIZE(h)               ((h)->aouthdr.bsize)
 743 #define H_GET_ENTRY_POINT(h)            ((h)->aouthdr.entry)
 744 #define H_GET_TEXT_START(h)             ((h)->aouthdr.text_start)
 745 #define H_GET_DATA_START(h)             ((h)->aouthdr.data_start)
 746 /* filehdr.  */
 747 #define H_GET_FILE_MAGIC_NUMBER(h)      ((h)->filehdr.f_magic)
 748 #define H_GET_NUMBER_OF_SECTIONS(h)     ((h)->filehdr.f_nscns)
 749 #define H_GET_TIME_STAMP(h)             ((h)->filehdr.f_timdat)
 750 #define H_GET_SYMBOL_TABLE_POINTER(h)   ((h)->filehdr.f_symptr)
 751 #define H_GET_SYMBOL_COUNT(h)           ((h)->filehdr.f_nsyms)
 752 #define H_GET_SYMBOL_TABLE_SIZE(h)      (H_GET_SYMBOL_COUNT(h) * SYMESZ)
 753 #define H_GET_SIZEOF_OPTIONAL_HEADER(h) ((h)->filehdr.f_opthdr)
 754 #define H_GET_FLAGS(h)                  ((h)->filehdr.f_flags)
 755 /* Extra fields to achieve bsd a.out compatibility and for convenience.  */
 756 #define H_GET_RELOCATION_SIZE(h)        ((h)->relocation_size)
 757 #define H_GET_STRING_SIZE(h)            ((h)->string_table_size)
 758 #define H_GET_LINENO_SIZE(h)            ((h)->lineno_size)
 759
 760 #ifndef OBJ_COFF_OMIT_OPTIONAL_HEADER
 761 #define H_GET_HEADER_SIZE(h)            (sizeof (FILHDR) \
 762                                          + sizeof (AOUTHDR)\
 763                                          + (H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ))
 764 #else /* OBJ_COFF_OMIT_OPTIONAL_HEADER */
 765 #define H_GET_HEADER_SIZE(h)            (sizeof (FILHDR) \
 766                                          + (H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ))
 767 #endif /* OBJ_COFF_OMIT_OPTIONAL_HEADER */
 768
 769 #define H_GET_TEXT_RELOCATION_SIZE(h)   (text_section_header.s_nreloc * RELSZ)
 770 #define H_GET_DATA_RELOCATION_SIZE(h)   (data_section_header.s_nreloc * RELSZ)
 771
 772 /* Modifiers.  */
 773 /* aouthdr.  */
 774 #define H_SET_MAGIC_NUMBER(h,v)         ((h)->aouthdr.magic = (v))
 775 #define H_SET_VERSION_STAMP(h,v)        ((h)->aouthdr.vstamp = (v))
 776 #define H_SET_TEXT_SIZE(h,v)            ((h)->aouthdr.tsize = (v))
 777 #define H_SET_DATA_SIZE(h,v)            ((h)->aouthdr.dsize = (v))
 778 #define H_SET_BSS_SIZE(h,v)             ((h)->aouthdr.bsize = (v))
 779 #define H_SET_ENTRY_POINT(h,v)          ((h)->aouthdr.entry = (v))
 780 #define H_SET_TEXT_START(h,v)           ((h)->aouthdr.text_start = (v))
 781 #define H_SET_DATA_START(h,v)           ((h)->aouthdr.data_start = (v))
 782 /* filehdr.  */
 783 #define H_SET_FILE_MAGIC_NUMBER(h,v)    ((h)->filehdr.f_magic = (v))
 784 #define H_SET_NUMBER_OF_SECTIONS(h,v)   ((h)->filehdr.f_nscns = (v))
 785 #define H_SET_TIME_STAMP(h,v)           ((h)->filehdr.f_timdat = (v))
 786 #define H_SET_SYMBOL_TABLE_POINTER(h,v) ((h)->filehdr.f_symptr = (v))
 787 #define H_SET_SYMBOL_TABLE_SIZE(h,v)    ((h)->filehdr.f_nsyms = (v))
 788 #define H_SET_SIZEOF_OPTIONAL_HEADER(h,v) ((h)->filehdr.f_opthdr = (v))
 789 #define H_SET_FLAGS(h,v)                ((h)->filehdr.f_flags = (v))
 790 /* Extra fields to achieve bsd a.out compatibility and for convenience.  */
 791 #define H_SET_RELOCATION_SIZE(h,t,d)    ((h)->relocation_size = (t)+(d))
 792 #define H_SET_STRING_SIZE(h,v)          ((h)->string_table_size = (v))
 793 #define H_SET_LINENO_SIZE(h,v)          ((h)->lineno_size = (v))
 794
 795 /* Segment flipping.  */
 796
 797 typedef struct
 798 {
 799   struct internal_aouthdr aouthdr;      /* a.out header.  */
 800   struct internal_filehdr filehdr;      /* File header, not machine dep.  */
 801   long string_table_size;               /* names + '\0' + sizeof (int).  */
 802   long relocation_size;                 /* Cumulated size of relocation
 803                                            information for all sections in
 804                                            bytes.  */
 805   long lineno_size;                     /* Size of the line number information
 806                                            table in bytes.  */
 807 } object_headers;
 808
 809 struct lineno_list
 810 {
 811   struct bfd_internal_lineno line;
 812   char *frag;                   /* Frag to which the line number is related.  */
 813   struct lineno_list *next;     /* Forward chain pointer.  */
 814 };
 815
 816 #define obj_segment_name(i) (segment_info[(int) (i)].scnhdr.s_name)
 817
 818 #define obj_add_segment(s) obj_coff_add_segment (s)
 819
 820 /* Sanity check.  */
 821 #ifdef TC_I960
 822 #ifndef C_LEAFSTAT
 823 hey ! Where is the C_LEAFSTAT definition ? i960 - coff support is depending on it.
 824 #endif /* no C_LEAFSTAT */
 825 #endif /* TC_I960 */
 826
 827 extern struct internal_scnhdr data_section_header;
 828 extern struct internal_scnhdr text_section_header;
 829
 830 /* Forward the segment of a forwarded symbol.  */
 831 #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest,src) \
 832   (SF_GET_GET_SEGMENT (dest) \
 833    ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
 834    : 0)
 835
 836 #ifdef TE_PE
 837 #define obj_handle_link_once(t) obj_coff_pe_handle_link_once (t)
 838 #endif
 839
 840 #endif /* not BFD_ASSEMBLER */
 841
 842 extern const pseudo_typeS coff_pseudo_table[];
 843
 844 #ifndef obj_pop_insert
 845 #define obj_pop_insert() pop_insert (coff_pseudo_table)
 846 #endif
 847
 848 /* In COFF, if a symbol is defined using .def/.val SYM/.endef, it's OK
 849    to redefine the symbol later on.  This can happen if C symbols use
 850    a prefix, and a symbol is defined both with and without the prefix,
 851    as in start/_start/__start in gcc/libgcc1-test.c.  */
 852 #define RESOLVE_SYMBOL_REDEFINITION(sym)                \
 853 (SF_GET_GET_SEGMENT (sym)                               \
 854  ? (sym->sy_frag = frag_now,                            \
 855     S_SET_VALUE (sym, frag_now_fix ()),                 \
 856     S_SET_SEGMENT (sym, now_seg),                       \
 857     0)                                                  \
 858  : 0)
 859
 860 /* Stabs in a coff file go into their own section.  */
 861 #define SEPARATE_STAB_SECTIONS 1
 862
 863 /* We need 12 bytes at the start of the section to hold some initial
 864    information.  */
 865 #define INIT_STAB_SECTION(seg) obj_coff_init_stab_section (seg)
 866
 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)
 870
 871 #define obj_app_file(name, app) c_dot_file_symbol (name, app)
 872
 873 #ifdef BFD_ASSEMBLER
 874 extern int  S_SET_DATA_TYPE              (symbolS *, int);
 875 extern int  S_SET_STORAGE_CLASS          (symbolS *, int);
 876 extern int  S_GET_STORAGE_CLASS          (symbolS *);
 877 extern void SA_SET_SYM_ENDNDX            (symbolS *, symbolS *);
 878 extern void coff_add_linesym             (symbolS *);
 879 extern void c_dot_file_symbol            (const char *, int);
 880 extern void coff_frob_symbol             (symbolS *, int *);
 881 extern void coff_adjust_symtab           (void);
 882 extern void coff_frob_section            (segT);
 883 extern void coff_adjust_section_syms     (bfd *, asection *, void *);
 884 extern void coff_frob_file_after_relocs  (void);
 885 #else
 886 extern void obj_extra_stuff              (object_headers *);
 887 #endif
 888 extern void coff_obj_symbol_new_hook     (symbolS *);
 889 extern void coff_obj_read_begin_hook     (void);
 890 extern void obj_coff_section             (int);
 891 extern segT obj_coff_add_segment         (const char *);
 892 extern void obj_coff_section             (int);
 893 extern void c_dot_file_symbol            (const char *, int);
 894 extern segT s_get_segment                (symbolS *);
 895 #ifndef tc_coff_symbol_emit_hook
 896 extern void tc_coff_symbol_emit_hook     (symbolS *);
 897 #endif
 898 extern void obj_coff_pe_handle_link_once (void);
 899 extern void obj_coff_init_stab_section   (segT);
 900 extern void c_section_header             (struct internal_scnhdr *,
 901                                           char *, long, long, long, long,
 902                                           long, long, long, long);
 903 #endif /* OBJ_FORMAT_H */