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, 2002
   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_SH
 119
 120 #ifdef TE_PE
 121 #define COFF_WITH_PE
 122 #endif
 123
 124 #include "coff/sh.h"
 125
 126 #ifdef TE_PE
 127 #define TARGET_FORMAT "pe-shl"
 128 #else
 129
 130 #define TARGET_FORMAT                                   \
 131   (!target_big_endian                                   \
 132    ? (sh_small ? "coff-shl-small" : "coff-shl")         \
 133    : (sh_small ? "coff-sh-small" : "coff-sh"))
 134
 135 #endif
 136 #endif
 137
 138 #ifdef TC_MIPS
 139 #define COFF_WITH_PE
 140 #include "coff/mipspe.h"
 141 #undef  TARGET_FORMAT
 142 #define TARGET_FORMAT "pe-mips"
 143 #endif
 144
 145 #ifdef TC_M88K
 146 #include "coff/m88k.h"
 147 #define TARGET_FORMAT "coff-m88kbcs"
 148 #endif
 149
 150 #ifdef TC_W65
 151 #include "coff/w65.h"
 152 #define TARGET_FORMAT "coff-w65"
 153 #endif
 154
 155 #ifdef TC_TIC30
 156 #include "coff/tic30.h"
 157 #define TARGET_FORMAT "coff-tic30"
 158 #endif
 159
 160 #ifdef TC_TIC4X
 161 #include "coff/tic4x.h"
 162 #define TARGET_FORMAT "coff2-c4x"
 163 #endif
 164
 165 #ifdef TC_TIC54X
 166 #include "coff/tic54x.h"
 167 #define TARGET_FORMAT "coff1-c54x"
 168 #endif
 169
 170 #ifdef TC_TIC80
 171 #include "coff/tic80.h"
 172 #define TARGET_FORMAT "coff-tic80"
 173 #define ALIGNMENT_IN_S_FLAGS 1
 174 #endif
 175
 176 #ifdef TC_MCORE
 177 #include "coff/mcore.h"
 178 #ifndef TARGET_FORMAT
 179 #define TARGET_FORMAT "pe-mcore"
 180 #endif
 181 #endif
 182
 183 /* Targets may also set this.  Also, if BFD_ASSEMBLER is defined, this
 184    will already have been defined.  */
 185 #undef SYMBOLS_NEED_BACKPOINTERS
 186 #define SYMBOLS_NEED_BACKPOINTERS 1
 187
 188 #ifndef OBJ_COFF_MAX_AUXENTRIES
 189 #define OBJ_COFF_MAX_AUXENTRIES 1
 190 #endif /* OBJ_COFF_MAX_AUXENTRIES */
 191
 192 extern void coff_obj_symbol_new_hook PARAMS ((symbolS *));
 193 #define obj_symbol_new_hook coff_obj_symbol_new_hook
 194
 195 extern void coff_obj_read_begin_hook PARAMS ((void));
 196 #define obj_read_begin_hook coff_obj_read_begin_hook
 197
 198 /* This file really contains two implementations of the COFF back end.
 199    They are in the process of being merged, but this is only a
 200    preliminary, mechanical merging.  Many definitions that are
 201    identical between the two are still found in both versions.
 202
 203    The first version, with BFD_ASSEMBLER defined, uses high-level BFD
 204    interfaces and data structures.  The second version, with
 205    BFD_ASSEMBLER not defined, also uses BFD, but mostly for swapping
 206    data structures and for doing the actual I/O.  The latter defines
 207    the preprocessor symbols BFD and BFD_HEADERS.  Try not to let this
 208    confuse you.
 209
 210    These two are in the process of being merged, and eventually the
 211    BFD_ASSEMBLER version should take over completely.  Release timing
 212    issues and namespace problems convinced me to merge the two
 213    together in this fashion, a little sooner than I would have liked.
 214    The real merge should be much better done by the time the next
 215    release comes out.
 216
 217    For now, the structure of this file is:
 218         <common>
 219         #ifdef BFD_ASSEMBLER
 220         <one version>
 221         #else
 222         <other version>
 223         #endif
 224         <common>
 225    Unfortunately, the common portions are very small at the moment,
 226    and many declarations or definitions are duplicated.  The structure
 227    of obj-coff.c is similar.
 228
 229    See doc/internals.texi for a brief discussion of the history, if
 230    you care.
 231
 232    Ken Raeburn, 5 May 1994.  */
 233
 234 #ifdef BFD_ASSEMBLER
 235
 236 #include "bfd/libcoff.h"
 237
 238 #define OUTPUT_FLAVOR bfd_target_coff_flavour
 239
 240 /* SYMBOL TABLE */
 241
 242 /* Alter the field names, for now, until we've fixed up the other
 243    references to use the new name.  */
 244 #ifdef TC_I960
 245 #define TC_SYMFIELD_TYPE        symbolS *
 246 #define sy_tc                   bal
 247 #endif
 248
 249 #define OBJ_SYMFIELD_TYPE       unsigned long
 250 #define sy_obj                  sy_flags
 251
 252 /* We can't use the predefined section symbols in bfd/section.c, as
 253    COFF symbols have extra fields.  See bfd/libcoff.h:coff_symbol_type.  */
 254 #ifndef obj_sec_sym_ok_for_reloc
 255 #define obj_sec_sym_ok_for_reloc(SEC)   ((SEC)->owner != 0)
 256 #endif
 257
 258 #define SYM_AUXENT(S) \
 259   (&coffsymbol (symbol_get_bfdsym (S))->native[1].u.auxent)
 260 #define SYM_AUXINFO(S) \
 261   (&coffsymbol (symbol_get_bfdsym (S))->native[1])
 262
 263 #define DO_NOT_STRIP    0
 264
 265 extern void obj_coff_section PARAMS ((int));
 266
 267 /* The number of auxiliary entries.  */
 268 #define S_GET_NUMBER_AUXILIARY(s) \
 269   (coffsymbol (symbol_get_bfdsym (s))->native->u.syment.n_numaux)
 270 /* The number of auxiliary entries.  */
 271 #define S_SET_NUMBER_AUXILIARY(s,v)     (S_GET_NUMBER_AUXILIARY (s) = (v))
 272
 273 /* True if a symbol name is in the string table, i.e. its length is > 8.  */
 274 #define S_IS_STRING(s)          (strlen(S_GET_NAME(s)) > 8 ? 1 : 0)
 275
 276 extern int S_SET_DATA_TYPE PARAMS ((symbolS *, int));
 277 extern int S_SET_STORAGE_CLASS PARAMS ((symbolS *, int));
 278 extern int S_GET_STORAGE_CLASS PARAMS ((symbolS *));
 279 extern void SA_SET_SYM_ENDNDX PARAMS ((symbolS *, symbolS *));
 280
 281 /* Auxiliary entry macros. SA_ stands for symbol auxiliary.  */
 282 /* Omit the tv related fields.  */
 283 /* Accessors.  */
 284
 285 #define SA_GET_SYM_TAGNDX(s)    (SYM_AUXENT (s)->x_sym.x_tagndx.l)
 286 #define SA_GET_SYM_LNNO(s)      (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno)
 287 #define SA_GET_SYM_SIZE(s)      (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size)
 288 #define SA_GET_SYM_FSIZE(s)     (SYM_AUXENT (s)->x_sym.x_misc.x_fsize)
 289 #define SA_GET_SYM_LNNOPTR(s)   (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr)
 290 #define SA_GET_SYM_ENDNDX(s)    (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx)
 291 #define SA_GET_SYM_DIMEN(s,i)   (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)])
 292 #define SA_GET_FILE_FNAME(s)    (SYM_AUXENT (s)->x_file.x_fname)
 293 #define SA_GET_SCN_SCNLEN(s)    (SYM_AUXENT (s)->x_scn.x_scnlen)
 294 #define SA_GET_SCN_NRELOC(s)    (SYM_AUXENT (s)->x_scn.x_nreloc)
 295 #define SA_GET_SCN_NLINNO(s)    (SYM_AUXENT (s)->x_scn.x_nlinno)
 296
 297 #define SA_SET_SYM_LNNO(s,v)    (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno=(v))
 298 #define SA_SET_SYM_SIZE(s,v)    (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size=(v))
 299 #define SA_SET_SYM_FSIZE(s,v)   (SYM_AUXENT (s)->x_sym.x_misc.x_fsize=(v))
 300 #define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr=(v))
 301 #define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)]=(v))
 302 #define SA_SET_FILE_FNAME(s,v)  strncpy(SYM_AUXENT (s)->x_file.x_fname,(v),FILNMLEN)
 303 #define SA_SET_SCN_SCNLEN(s,v)  (SYM_AUXENT (s)->x_scn.x_scnlen=(v))
 304 #define SA_SET_SCN_NRELOC(s,v)  (SYM_AUXENT (s)->x_scn.x_nreloc=(v))
 305 #define SA_SET_SCN_NLINNO(s,v)  (SYM_AUXENT (s)->x_scn.x_nlinno=(v))
 306
 307 /* Internal use only definitions. SF_ stands for symbol flags.
 308
 309    These values can be assigned to sy_symbol.ost_flags field of a symbolS.
 310
 311    You'll break i960 if you shift the SYSPROC bits anywhere else.  for
 312    more on the balname/callname hack, see tc-i960.h.  b.out is done
 313    differently.  */
 314
 315 #define SF_I960_MASK    (0x000001ff)    /* Bits 0-8 are used by the i960 port.  */
 316 #define SF_SYSPROC      (0x0000003f)    /* bits 0-5 are used to store the sysproc number */
 317 #define SF_IS_SYSPROC   (0x00000040)    /* bit 6 marks symbols that are sysprocs */
 318 #define SF_BALNAME      (0x00000080)    /* bit 7 marks BALNAME symbols */
 319 #define SF_CALLNAME     (0x00000100)    /* bit 8 marks CALLNAME symbols */
 320
 321 #define SF_NORMAL_MASK  (0x0000ffff)    /* bits 12-15 are general purpose.  */
 322
 323 #define SF_STATICS      (0x00001000)    /* Mark the .text & all symbols */
 324 #define SF_DEFINED      (0x00002000)    /* Symbol is defined in this file */
 325 #define SF_STRING       (0x00004000)    /* Symbol name length > 8 */
 326 #define SF_LOCAL        (0x00008000)    /* Symbol must not be emitted */
 327
 328 #define SF_DEBUG_MASK   (0xffff0000)    /* bits 16-31 are debug info */
 329
 330 #define SF_FUNCTION     (0x00010000)    /* The symbol is a function */
 331 #define SF_PROCESS      (0x00020000)    /* Process symbol before write */
 332 #define SF_TAGGED       (0x00040000)    /* Is associated with a tag */
 333 #define SF_TAG          (0x00080000)    /* Is a tag */
 334 #define SF_DEBUG        (0x00100000)    /* Is in debug or abs section */
 335 #define SF_GET_SEGMENT  (0x00200000)    /* Get the section of the forward symbol.  */
 336 /* All other bits are unused.  */
 337
 338 /* Accessors.  */
 339 #define SF_GET(s)               (*symbol_get_obj (s))
 340 #define SF_GET_DEBUG(s)         (symbol_get_bfdsym (s)->flags & BSF_DEBUGGING)
 341 #define SF_SET_DEBUG(s)         (symbol_get_bfdsym (s)->flags |= BSF_DEBUGGING)
 342 #define SF_GET_NORMAL_FIELD(s)  (SF_GET (s) & SF_NORMAL_MASK)
 343 #define SF_GET_DEBUG_FIELD(s)   (SF_GET (s) & SF_DEBUG_MASK)
 344 #define SF_GET_FILE(s)          (SF_GET (s) & SF_FILE)
 345 #define SF_GET_STATICS(s)       (SF_GET (s) & SF_STATICS)
 346 #define SF_GET_DEFINED(s)       (SF_GET (s) & SF_DEFINED)
 347 #define SF_GET_STRING(s)        (SF_GET (s) & SF_STRING)
 348 #define SF_GET_LOCAL(s)         (SF_GET (s) & SF_LOCAL)
 349 #define SF_GET_FUNCTION(s)      (SF_GET (s) & SF_FUNCTION)
 350 #define SF_GET_PROCESS(s)       (SF_GET (s) & SF_PROCESS)
 351 #define SF_GET_TAGGED(s)        (SF_GET (s) & SF_TAGGED)
 352 #define SF_GET_TAG(s)           (SF_GET (s) & SF_TAG)
 353 #define SF_GET_GET_SEGMENT(s)   (SF_GET (s) & SF_GET_SEGMENT)
 354 #define SF_GET_I960(s)          (SF_GET (s) & SF_I960_MASK)     /* used by i960 */
 355 #define SF_GET_BALNAME(s)       (SF_GET (s) & SF_BALNAME)       /* used by i960 */
 356 #define SF_GET_CALLNAME(s)      (SF_GET (s) & SF_CALLNAME)      /* used by i960 */
 357 #define SF_GET_IS_SYSPROC(s)    (SF_GET (s) & SF_IS_SYSPROC)    /* used by i960 */
 358 #define SF_GET_SYSPROC(s)       (SF_GET (s) & SF_SYSPROC)       /* used by i960 */
 359
 360 /* Modifiers.  */
 361 #define SF_SET(s,v)             (SF_GET (s) = (v))
 362 #define SF_SET_NORMAL_FIELD(s,v) (SF_GET (s) |= ((v) & SF_NORMAL_MASK))
 363 #define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK))
 364 #define SF_SET_FILE(s)          (SF_GET (s) |= SF_FILE)
 365 #define SF_SET_STATICS(s)       (SF_GET (s) |= SF_STATICS)
 366 #define SF_SET_DEFINED(s)       (SF_GET (s) |= SF_DEFINED)
 367 #define SF_SET_STRING(s)        (SF_GET (s) |= SF_STRING)
 368 #define SF_SET_LOCAL(s)         (SF_GET (s) |= SF_LOCAL)
 369 #define SF_CLEAR_LOCAL(s)       (SF_GET (s) &= ~SF_LOCAL)
 370 #define SF_SET_FUNCTION(s)      (SF_GET (s) |= SF_FUNCTION)
 371 #define SF_SET_PROCESS(s)       (SF_GET (s) |= SF_PROCESS)
 372 #define SF_SET_TAGGED(s)        (SF_GET (s) |= SF_TAGGED)
 373 #define SF_SET_TAG(s)           (SF_GET (s) |= SF_TAG)
 374 #define SF_SET_GET_SEGMENT(s)   (SF_GET (s) |= SF_GET_SEGMENT)
 375 #define SF_SET_I960(s,v)        (SF_GET (s) |= ((v) & SF_I960_MASK))    /* used by i960 */
 376 #define SF_SET_BALNAME(s)       (SF_GET (s) |= SF_BALNAME)      /* used by i960 */
 377 #define SF_SET_CALLNAME(s)      (SF_GET (s) |= SF_CALLNAME)     /* used by i960 */
 378 #define SF_SET_IS_SYSPROC(s)    (SF_GET (s) |= SF_IS_SYSPROC)   /* used by i960 */
 379 #define SF_SET_SYSPROC(s,v)     (SF_GET (s) |= ((v) & SF_SYSPROC))      /* used by i960 */
 380
 381 /* --------------  Line number handling ------- */
 382 extern int text_lineno_number;
 383 extern int coff_line_base;
 384 extern int coff_n_line_nos;
 385
 386 #define obj_emit_lineno(WHERE,LINE,FILE_START)  abort ()
 387 extern void coff_add_linesym PARAMS ((symbolS *));
 388
 389 void c_dot_file_symbol PARAMS ((const char *filename));
 390 #define obj_app_file c_dot_file_symbol
 391
 392 extern void coff_frob_symbol PARAMS ((symbolS *, int *));
 393 extern void coff_adjust_symtab PARAMS ((void));
 394 extern void coff_frob_section PARAMS ((segT));
 395 extern void coff_adjust_section_syms PARAMS ((bfd *, asection *, PTR));
 396 extern void coff_frob_file_after_relocs PARAMS ((void));
 397 #define obj_frob_symbol(S,P)    coff_frob_symbol(S,&P)
 398 #ifndef obj_adjust_symtab
 399 #define obj_adjust_symtab()     coff_adjust_symtab()
 400 #endif
 401 #define obj_frob_section(S)     coff_frob_section (S)
 402 #define obj_frob_file_after_relocs() coff_frob_file_after_relocs ()
 403
 404 extern symbolS *coff_last_function;
 405
 406 /* Forward the segment of a forwarded symbol, handle assignments that
 407    just copy symbol values, etc.  */
 408 #ifndef OBJ_COPY_SYMBOL_ATTRIBUTES
 409 #ifndef TE_I386AIX
 410 #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest,src) \
 411   (SF_GET_GET_SEGMENT (dest) \
 412    ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
 413    : 0)
 414 #else
 415 #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest,src) \
 416   (SF_GET_GET_SEGMENT (dest) && S_GET_SEGMENT (dest) == SEG_UNKNOWN \
 417    ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
 418    : 0)
 419 #endif
 420 #endif
 421
 422 /* Sanity check.  */
 423
 424 #ifdef TC_I960
 425 #ifndef C_LEAFSTAT
 426 hey ! Where is the C_LEAFSTAT definition ? i960 - coff support is depending on it.
 427 #endif /* no C_LEAFSTAT */
 428 #endif /* TC_I960 */
 429
 430 #else /* not BFD_ASSEMBLER */
 431
 432 #if defined TC_A29K || defined TC_OR32
 433 /* Allow translate from aout relocs to coff relocs.  */
 434 #define NO_RELOC 20
 435 #define RELOC_32 1
 436 #define RELOC_8 2
 437 #define RELOC_CONST 3
 438 #define RELOC_CONSTH 4
 439 #define RELOC_JUMPTARG 5
 440 #define RELOC_BASE22 6
 441 #define RELOC_HI22 7
 442 #define RELOC_LO10 8
 443 #define RELOC_BASE13 9
 444 #define RELOC_WDISP22 10
 445 #define RELOC_WDISP30 11
 446 #endif
 447
 448 extern const segT N_TYPE_seg[];
 449
 450 /* Magic number of paged executable.  */
 451 #define DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE    0x8300
 452
 453 /* SYMBOL TABLE */
 454
 455 /* Symbol table entry data type.  */
 456
 457 typedef struct
 458 {
 459   /* Basic symbol */
 460   struct internal_syment ost_entry;
 461   /* Auxiliary entry.  */
 462   union internal_auxent ost_auxent[OBJ_COFF_MAX_AUXENTRIES];
 463   /* obj_coff internal use only flags.  */
 464   unsigned int ost_flags;
 465 } obj_symbol_type;
 466
 467 #ifndef DO_NOT_STRIP
 468 #define DO_NOT_STRIP    0
 469 #endif
 470 /* Symbol table macros and constants.  */
 471
 472 /* Possible and usefull section number in symbol table
 473    The values of TEXT, DATA and BSS may not be portable.  */
 474
 475 #define C_ABS_SECTION           N_ABS
 476 #define C_UNDEF_SECTION         N_UNDEF
 477 #define C_DEBUG_SECTION         N_DEBUG
 478 #define C_NTV_SECTION           N_TV
 479 #define C_PTV_SECTION           P_TV
 480 #define C_REGISTER_SECTION      50
 481
 482 /* Macros to extract information from a symbol table entry.
 483    This syntaxic indirection allows independence regarding a.out or coff.
 484    The argument (s) of all these macros is a pointer to a symbol table entry.  */
 485
 486 /* Predicates.  */
 487 /* True if the symbol is external.  */
 488 #define S_IS_EXTERNAL(s)  \
 489   ((s)->sy_symbol.ost_entry.n_scnum == C_UNDEF_SECTION)
 490
 491 /* True if symbol has been defined, ie :
 492    section > 0 (DATA, TEXT or BSS)
 493    section == 0 and value > 0 (external bss symbol).  */
 494 #define S_IS_DEFINED(s) \
 495   ((s)->sy_symbol.ost_entry.n_scnum > C_UNDEF_SECTION \
 496    || ((s)->sy_symbol.ost_entry.n_scnum == C_UNDEF_SECTION \
 497        && S_GET_VALUE (s) > 0) \
 498    || ((s)->sy_symbol.ost_entry.n_scnum == C_ABS_SECTION))
 499
 500 /* Return true for symbols that should not be reduced to section
 501    symbols or eliminated from expressions, because they may be
 502    overridden by the linker.  */
 503 #define S_FORCE_RELOC(s) \
 504   (!SEG_NORMAL (S_GET_SEGMENT (s)) || S_IS_WEAK (s))
 505
 506 /* True if a debug special symbol entry.  */
 507 #define S_IS_DEBUG(s) \
 508   ((s)->sy_symbol.ost_entry.n_scnum == C_DEBUG_SECTION)
 509
 510 /* True if a symbol is local symbol name.  */
 511 /* A symbol name whose name includes ^A is a gas internal pseudo symbol.  */
 512 #define S_IS_LOCAL(s) \
 513   ((s)->sy_symbol.ost_entry.n_scnum == C_REGISTER_SECTION \
 514    || (S_LOCAL_NAME(s) && ! flag_keep_locals && ! S_IS_DEBUG (s)) \
 515    || strchr (S_GET_NAME (s), '\001') != NULL \
 516    || strchr (S_GET_NAME (s), '\002') != NULL \
 517    || (flag_strip_local_absolute \
 518        && !S_IS_EXTERNAL(s) \
 519        && (s)->sy_symbol.ost_entry.n_scnum == C_ABS_SECTION))
 520
 521 /* True if a symbol is not defined in this file.  */
 522 #define S_IS_EXTERN(s)          ((s)->sy_symbol.ost_entry.n_scnum == 0 \
 523                                  && S_GET_VALUE (s) == 0)
 524
 525 /* True if a symbol can be multiply defined (bss symbols have this def
 526    though it is bad practice).  */
 527 #define S_IS_COMMON(s)          ((s)->sy_symbol.ost_entry.n_scnum == 0 \
 528                                  && S_GET_VALUE (s) != 0)
 529
 530 /* True if a symbol name is in the string table, i.e. its length is > 8.  */
 531 #define S_IS_STRING(s)          (strlen(S_GET_NAME(s)) > 8 ? 1 : 0)
 532
 533 /* True if a symbol is defined as weak.  */
 534 #ifdef TE_PE
 535 #define S_IS_WEAK(s) \
 536   ((s)->sy_symbol.ost_entry.n_sclass == C_NT_WEAK \
 537    || (s)->sy_symbol.ost_entry.n_sclass == C_WEAKEXT)
 538 #else
 539 #define S_IS_WEAK(s) \
 540   ((s)->sy_symbol.ost_entry.n_sclass == C_WEAKEXT)
 541 #endif
 542
 543 /* Accessors.  */
 544 /* The name of the symbol.  */
 545 #define S_GET_NAME(s)           ((char*) (s)->sy_symbol.ost_entry.n_offset)
 546
 547 /* The pointer to the string table.  */
 548 #define S_GET_OFFSET(s)         ((s)->sy_symbol.ost_entry.n_offset)
 549
 550 /* The numeric value of the segment.  */
 551 #define S_GET_SEGMENT(s)   s_get_segment(s)
 552
 553 /* The data type.  */
 554 #define S_GET_DATA_TYPE(s)      ((s)->sy_symbol.ost_entry.n_type)
 555
 556 /* The storage class.  */
 557 #define S_GET_STORAGE_CLASS(s)  ((s)->sy_symbol.ost_entry.n_sclass)
 558
 559 /* The number of auxiliary entries.  */
 560 #define S_GET_NUMBER_AUXILIARY(s)       ((s)->sy_symbol.ost_entry.n_numaux)
 561
 562 /* Modifiers.  */
 563 /* Set the name of the symbol.  */
 564 #define S_SET_NAME(s,v) \
 565   ((s)->sy_symbol.ost_entry.n_offset = (unsigned long) (v))
 566
 567 /* Set the offset of the symbol.  */
 568 #define S_SET_OFFSET(s,v) \
 569   ((s)->sy_symbol.ost_entry.n_offset = (v))
 570
 571 /* The numeric value of the segment.  */
 572 #define S_SET_SEGMENT(s,v) \
 573   ((s)->sy_symbol.ost_entry.n_scnum = SEGMENT_TO_SYMBOL_TYPE(v))
 574
 575 /* The data type.  */
 576 #define S_SET_DATA_TYPE(s,v) \
 577   ((s)->sy_symbol.ost_entry.n_type = (v))
 578
 579 /* The storage class.  */
 580 #define S_SET_STORAGE_CLASS(s,v) \
 581   ((s)->sy_symbol.ost_entry.n_sclass = (v))
 582
 583 /* The number of auxiliary entries.  */
 584 #define S_SET_NUMBER_AUXILIARY(s,v) \
 585   ((s)->sy_symbol.ost_entry.n_numaux = (v))
 586
 587 /* Additional modifiers.  */
 588 /* The symbol is external (does not mean undefined).  */
 589 #define S_SET_EXTERNAL(s) \
 590   { S_SET_STORAGE_CLASS(s, C_EXT) ; SF_CLEAR_LOCAL(s); }
 591
 592 /* Auxiliary entry macros. SA_ stands for symbol auxiliary.  */
 593 /* Omit the tv related fields.  */
 594 /* Accessors.  */
 595 #define SYM_AUXENT(S)   (&(S)->sy_symbol.ost_auxent[0])
 596
 597 #define SA_GET_SYM_TAGNDX(s)    (SYM_AUXENT (s)->x_sym.x_tagndx.l)
 598 #define SA_GET_SYM_LNNO(s)      (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno)
 599 #define SA_GET_SYM_SIZE(s)      (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size)
 600 #define SA_GET_SYM_FSIZE(s)     (SYM_AUXENT (s)->x_sym.x_misc.x_fsize)
 601 #define SA_GET_SYM_LNNOPTR(s)   (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr)
 602 #define SA_GET_SYM_ENDNDX(s)    (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx.l)
 603 #define SA_GET_SYM_DIMEN(s,i)   (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)])
 604 #define SA_GET_FILE_FNAME(s)    (SYM_AUXENT (s)->x_file.x_fname)
 605 #define SA_GET_FILE_FNAME_OFFSET(s)  (SYM_AUXENT (s)->x_file.x_n.x_offset)
 606 #define SA_GET_FILE_FNAME_ZEROS(s)   (SYM_AUXENT (s)->x_file.x_n.x_zeroes)
 607 #define SA_GET_SCN_SCNLEN(s)    (SYM_AUXENT (s)->x_scn.x_scnlen)
 608 #define SA_GET_SCN_NRELOC(s)    (SYM_AUXENT (s)->x_scn.x_nreloc)
 609 #define SA_GET_SCN_NLINNO(s)    (SYM_AUXENT (s)->x_scn.x_nlinno)
 610
 611 /* Modifiers.  */
 612 #define SA_SET_SYM_TAGNDX(s,v)  (SYM_AUXENT (s)->x_sym.x_tagndx.l=(v))
 613 #define SA_SET_SYM_LNNO(s,v)    (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno=(v))
 614 #define SA_SET_SYM_SIZE(s,v)    (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size=(v))
 615 #define SA_SET_SYM_FSIZE(s,v)   (SYM_AUXENT (s)->x_sym.x_misc.x_fsize=(v))
 616 #define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr=(v))
 617 #define SA_SET_SYM_ENDNDX(s,v)  (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx.l=(v))
 618 #define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)]=(v))
 619 #define SA_SET_FILE_FNAME(s,v)  strncpy(SYM_AUXENT (s)->x_file.x_fname,(v),FILNMLEN)
 620 #define SA_SET_FILE_FNAME_OFFSET(s,v) (SYM_AUXENT (s)->x_file.x_n.x_offset=(v))
 621 #define SA_SET_FILE_FNAME_ZEROS(s,v)  (SYM_AUXENT (s)->x_file.x_n.x_zeroes=(v))
 622 #define SA_SET_SCN_SCNLEN(s,v)  (SYM_AUXENT (s)->x_scn.x_scnlen=(v))
 623 #define SA_SET_SCN_NRELOC(s,v)  (SYM_AUXENT (s)->x_scn.x_nreloc=(v))
 624 #define SA_SET_SCN_NLINNO(s,v)  (SYM_AUXENT (s)->x_scn.x_nlinno=(v))
 625
 626 /* Internal use only definitions. SF_ stands for symbol flags.
 627
 628    These values can be assigned to sy_symbol.ost_flags field of a symbolS.
 629
 630    You'll break i960 if you shift the SYSPROC bits anywhere else.  for
 631    more on the balname/callname hack, see tc-i960.h.  b.out is done
 632    differently.  */
 633
 634 #define SF_I960_MASK    (0x000001ff)    /* Bits 0-8 are used by the i960 port.  */
 635 #define SF_SYSPROC      (0x0000003f)    /* bits 0-5 are used to store the sysproc number */
 636 #define SF_IS_SYSPROC   (0x00000040)    /* bit 6 marks symbols that are sysprocs */
 637 #define SF_BALNAME      (0x00000080)    /* bit 7 marks BALNAME symbols */
 638 #define SF_CALLNAME     (0x00000100)    /* bit 8 marks CALLNAME symbols */
 639
 640 #define SF_NORMAL_MASK  (0x0000ffff)    /* bits 12-15 are general purpose.  */
 641
 642 #define SF_STATICS      (0x00001000)    /* Mark the .text & all symbols */
 643 #define SF_DEFINED      (0x00002000)    /* Symbol is defined in this file */
 644 #define SF_STRING       (0x00004000)    /* Symbol name length > 8 */
 645 #define SF_LOCAL        (0x00008000)    /* Symbol must not be emitted */
 646
 647 #define SF_DEBUG_MASK   (0xffff0000)    /* bits 16-31 are debug info */
 648
 649 #define SF_FUNCTION     (0x00010000)    /* The symbol is a function */
 650 #define SF_PROCESS      (0x00020000)    /* Process symbol before write */
 651 #define SF_TAGGED       (0x00040000)    /* Is associated with a tag */
 652 #define SF_TAG          (0x00080000)    /* Is a tag */
 653 #define SF_DEBUG        (0x00100000)    /* Is in debug or abs section */
 654 #define SF_GET_SEGMENT  (0x00200000)    /* Get the section of the forward symbol.  */
 655 #define SF_ADJ_LNNOPTR  (0x00400000)    /* Has a lnnoptr */
 656 /* All other bits are unused.  */
 657
 658 /* Accessors.  */
 659 #define SF_GET(s)               ((s)->sy_symbol.ost_flags)
 660 #define SF_GET_NORMAL_FIELD(s)  (SF_GET (s) & SF_NORMAL_MASK)
 661 #define SF_GET_DEBUG_FIELD(s)   (SF_GET (s) & SF_DEBUG_MASK)
 662 #define SF_GET_FILE(s)          (SF_GET (s) & SF_FILE)
 663 #define SF_GET_STATICS(s)       (SF_GET (s) & SF_STATICS)
 664 #define SF_GET_DEFINED(s)       (SF_GET (s) & SF_DEFINED)
 665 #define SF_GET_STRING(s)        (SF_GET (s) & SF_STRING)
 666 #define SF_GET_LOCAL(s)         (SF_GET (s) & SF_LOCAL)
 667 #define SF_GET_FUNCTION(s)      (SF_GET (s) & SF_FUNCTION)
 668 #define SF_GET_PROCESS(s)       (SF_GET (s) & SF_PROCESS)
 669 #define SF_GET_DEBUG(s)         (SF_GET (s) & SF_DEBUG)
 670 #define SF_GET_TAGGED(s)        (SF_GET (s) & SF_TAGGED)
 671 #define SF_GET_TAG(s)           (SF_GET (s) & SF_TAG)
 672 #define SF_GET_GET_SEGMENT(s)   (SF_GET (s) & SF_GET_SEGMENT)
 673 #define SF_GET_ADJ_LNNOPTR(s)   (SF_GET (s) & SF_ADJ_LNNOPTR)
 674 #define SF_GET_I960(s)          (SF_GET (s) & SF_I960_MASK)     /* used by i960 */
 675 #define SF_GET_BALNAME(s)       (SF_GET (s) & SF_BALNAME)       /* used by i960 */
 676 #define SF_GET_CALLNAME(s)      (SF_GET (s) & SF_CALLNAME)      /* used by i960 */
 677 #define SF_GET_IS_SYSPROC(s)    (SF_GET (s) & SF_IS_SYSPROC)    /* used by i960 */
 678 #define SF_GET_SYSPROC(s)       (SF_GET (s) & SF_SYSPROC)       /* used by i960 */
 679
 680 /* Modifiers.  */
 681 #define SF_SET(s,v)             (SF_GET (s) = (v))
 682 #define SF_SET_NORMAL_FIELD(s,v) (SF_GET (s) |= ((v) & SF_NORMAL_MASK))
 683 #define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK))
 684 #define SF_SET_FILE(s)          (SF_GET (s) |= SF_FILE)
 685 #define SF_SET_STATICS(s)       (SF_GET (s) |= SF_STATICS)
 686 #define SF_SET_DEFINED(s)       (SF_GET (s) |= SF_DEFINED)
 687 #define SF_SET_STRING(s)        (SF_GET (s) |= SF_STRING)
 688 #define SF_SET_LOCAL(s)         (SF_GET (s) |= SF_LOCAL)
 689 #define SF_CLEAR_LOCAL(s)       (SF_GET (s) &= ~SF_LOCAL)
 690 #define SF_SET_FUNCTION(s)      (SF_GET (s) |= SF_FUNCTION)
 691 #define SF_SET_PROCESS(s)       (SF_GET (s) |= SF_PROCESS)
 692 #define SF_SET_DEBUG(s)         (SF_GET (s) |= SF_DEBUG)
 693 #define SF_SET_TAGGED(s)        (SF_GET (s) |= SF_TAGGED)
 694 #define SF_SET_TAG(s)           (SF_GET (s) |= SF_TAG)
 695 #define SF_SET_GET_SEGMENT(s)   (SF_GET (s) |= SF_GET_SEGMENT)
 696 #define SF_SET_ADJ_LNNOPTR(s)   (SF_GET (s) |= SF_ADJ_LNNOPTR)
 697 #define SF_SET_I960(s,v)        (SF_GET (s) |= ((v) & SF_I960_MASK))    /* used by i960 */
 698 #define SF_SET_BALNAME(s)       (SF_GET (s) |= SF_BALNAME)      /* used by i960 */
 699 #define SF_SET_CALLNAME(s)      (SF_GET (s) |= SF_CALLNAME)     /* used by i960 */
 700 #define SF_SET_IS_SYSPROC(s)    (SF_GET (s) |= SF_IS_SYSPROC)   /* used by i960 */
 701 #define SF_SET_SYSPROC(s,v)     (SF_GET (s) |= ((v) & SF_SYSPROC))      /* used by i960 */
 702
 703 /* File header macro and type definition.  */
 704
 705 /* File position calculators. Beware to use them when all the
 706    appropriate fields are set in the header.  */
 707
 708 #ifdef OBJ_COFF_OMIT_OPTIONAL_HEADER
 709 #define OBJ_COFF_AOUTHDRSZ (0)
 710 #else
 711 #define OBJ_COFF_AOUTHDRSZ (AOUTHDRSZ)
 712 #endif /* OBJ_COFF_OMIT_OPTIONAL_HEADER */
 713
 714 #define H_GET_FILE_SIZE(h) \
 715     (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
 716            H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
 717            H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h) + \
 718            H_GET_RELOCATION_SIZE(h) + H_GET_LINENO_SIZE(h) + \
 719            H_GET_SYMBOL_TABLE_SIZE(h) + \
 720            (h)->string_table_size)
 721 #define H_GET_TEXT_FILE_OFFSET(h) \
 722     (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
 723            H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ)
 724 #define H_GET_DATA_FILE_OFFSET(h) \
 725     (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
 726            H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
 727            H_GET_TEXT_SIZE(h))
 728 #define H_GET_BSS_FILE_OFFSET(h) 0
 729 #define H_GET_RELOCATION_FILE_OFFSET(h) \
 730     (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
 731            H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
 732            H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h))
 733 #define H_GET_LINENO_FILE_OFFSET(h) \
 734     (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
 735            H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
 736            H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h) + \
 737            H_GET_RELOCATION_SIZE(h))
 738 #define H_GET_SYMBOL_TABLE_FILE_OFFSET(h) \
 739     (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
 740            H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
 741            H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h) + \
 742            H_GET_RELOCATION_SIZE(h) + H_GET_LINENO_SIZE(h))
 743
 744 /* Accessors.  */
 745 /* aouthdr.  */
 746 #define H_GET_MAGIC_NUMBER(h)           ((h)->aouthdr.magic)
 747 #define H_GET_VERSION_STAMP(h)          ((h)->aouthdr.vstamp)
 748 #define H_GET_TEXT_SIZE(h)              ((h)->aouthdr.tsize)
 749 #define H_GET_DATA_SIZE(h)              ((h)->aouthdr.dsize)
 750 #define H_GET_BSS_SIZE(h)               ((h)->aouthdr.bsize)
 751 #define H_GET_ENTRY_POINT(h)            ((h)->aouthdr.entry)
 752 #define H_GET_TEXT_START(h)             ((h)->aouthdr.text_start)
 753 #define H_GET_DATA_START(h)             ((h)->aouthdr.data_start)
 754 /* filehdr.  */
 755 #define H_GET_FILE_MAGIC_NUMBER(h)      ((h)->filehdr.f_magic)
 756 #define H_GET_NUMBER_OF_SECTIONS(h)     ((h)->filehdr.f_nscns)
 757 #define H_GET_TIME_STAMP(h)             ((h)->filehdr.f_timdat)
 758 #define H_GET_SYMBOL_TABLE_POINTER(h)   ((h)->filehdr.f_symptr)
 759 #define H_GET_SYMBOL_COUNT(h)           ((h)->filehdr.f_nsyms)
 760 #define H_GET_SYMBOL_TABLE_SIZE(h)      (H_GET_SYMBOL_COUNT(h) * SYMESZ)
 761 #define H_GET_SIZEOF_OPTIONAL_HEADER(h) ((h)->filehdr.f_opthdr)
 762 #define H_GET_FLAGS(h)                  ((h)->filehdr.f_flags)
 763 /* Extra fields to achieve bsd a.out compatibility and for convenience.  */
 764 #define H_GET_RELOCATION_SIZE(h)        ((h)->relocation_size)
 765 #define H_GET_STRING_SIZE(h)            ((h)->string_table_size)
 766 #define H_GET_LINENO_SIZE(h)            ((h)->lineno_size)
 767
 768 #ifndef OBJ_COFF_OMIT_OPTIONAL_HEADER
 769 #define H_GET_HEADER_SIZE(h)            (sizeof (FILHDR) \
 770                                          + sizeof (AOUTHDR)\
 771                                          + (H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ))
 772 #else /* OBJ_COFF_OMIT_OPTIONAL_HEADER */
 773 #define H_GET_HEADER_SIZE(h)            (sizeof (FILHDR) \
 774                                          + (H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ))
 775 #endif /* OBJ_COFF_OMIT_OPTIONAL_HEADER */
 776
 777 #define H_GET_TEXT_RELOCATION_SIZE(h)   (text_section_header.s_nreloc * RELSZ)
 778 #define H_GET_DATA_RELOCATION_SIZE(h)   (data_section_header.s_nreloc * RELSZ)
 779
 780 /* Modifiers.  */
 781 /* aouthdr.  */
 782 #define H_SET_MAGIC_NUMBER(h,v)         ((h)->aouthdr.magic = (v))
 783 #define H_SET_VERSION_STAMP(h,v)        ((h)->aouthdr.vstamp = (v))
 784 #define H_SET_TEXT_SIZE(h,v)            ((h)->aouthdr.tsize = (v))
 785 #define H_SET_DATA_SIZE(h,v)            ((h)->aouthdr.dsize = (v))
 786 #define H_SET_BSS_SIZE(h,v)             ((h)->aouthdr.bsize = (v))
 787 #define H_SET_ENTRY_POINT(h,v)          ((h)->aouthdr.entry = (v))
 788 #define H_SET_TEXT_START(h,v)           ((h)->aouthdr.text_start = (v))
 789 #define H_SET_DATA_START(h,v)           ((h)->aouthdr.data_start = (v))
 790 /* filehdr.  */
 791 #define H_SET_FILE_MAGIC_NUMBER(h,v)    ((h)->filehdr.f_magic = (v))
 792 #define H_SET_NUMBER_OF_SECTIONS(h,v)   ((h)->filehdr.f_nscns = (v))
 793 #define H_SET_TIME_STAMP(h,v)           ((h)->filehdr.f_timdat = (v))
 794 #define H_SET_SYMBOL_TABLE_POINTER(h,v) ((h)->filehdr.f_symptr = (v))
 795 #define H_SET_SYMBOL_TABLE_SIZE(h,v)    ((h)->filehdr.f_nsyms = (v))
 796 #define H_SET_SIZEOF_OPTIONAL_HEADER(h,v) ((h)->filehdr.f_opthdr = (v))
 797 #define H_SET_FLAGS(h,v)                ((h)->filehdr.f_flags = (v))
 798 /* Extra fields to achieve bsd a.out compatibility and for convinience.  */
 799 #define H_SET_RELOCATION_SIZE(h,t,d)    ((h)->relocation_size = (t)+(d))
 800 #define H_SET_STRING_SIZE(h,v)          ((h)->string_table_size = (v))
 801 #define H_SET_LINENO_SIZE(h,v)          ((h)->lineno_size = (v))
 802
 803 /* Segment flipping.  */
 804
 805 typedef struct
 806 {
 807   struct internal_aouthdr aouthdr;      /* a.out header */
 808   struct internal_filehdr filehdr;      /* File header, not machine dep.  */
 809   long string_table_size;               /* names + '\0' + sizeof (int) */
 810   long relocation_size;                 /* Cumulated size of relocation
 811                                            information for all sections in
 812                                            bytes.  */
 813   long lineno_size;                     /* Size of the line number information
 814                                            table in bytes.  */
 815 } object_headers;
 816
 817 struct lineno_list
 818 {
 819   struct bfd_internal_lineno line;
 820   char *frag;                   /* Frag to which the line number is related.  */
 821   struct lineno_list *next;     /* Forward chain pointer.  */
 822 };
 823
 824 #define obj_segment_name(i) (segment_info[(int) (i)].scnhdr.s_name)
 825
 826 #define obj_add_segment(s) obj_coff_add_segment (s)
 827
 828 extern segT obj_coff_add_segment PARAMS ((const char *));
 829
 830 extern void obj_coff_section PARAMS ((int));
 831
 832 extern void c_dot_file_symbol PARAMS ((char *filename));
 833 #define obj_app_file c_dot_file_symbol
 834 extern void obj_extra_stuff PARAMS ((object_headers * headers));
 835
 836 extern segT s_get_segment PARAMS ((symbolS *ptr));
 837
 838 extern void c_section_header PARAMS ((struct internal_scnhdr * header,
 839                                       char *name,
 840                                       long core_address,
 841                                       long size,
 842                                       long data_ptr,
 843                                       long reloc_ptr,
 844                                       long lineno_ptr,
 845                                       long reloc_number,
 846                                       long lineno_number,
 847                                       long alignment));
 848
 849 #ifndef tc_coff_symbol_emit_hook
 850 void tc_coff_symbol_emit_hook PARAMS ((symbolS *));
 851 #endif
 852
 853 /* Sanity check.  */
 854
 855 #ifdef TC_I960
 856 #ifndef C_LEAFSTAT
 857 hey ! Where is the C_LEAFSTAT definition ? i960 - coff support is depending on it.
 858 #endif /* no C_LEAFSTAT */
 859 #endif /* TC_I960 */
 860 extern struct internal_scnhdr data_section_header;
 861 extern struct internal_scnhdr text_section_header;
 862
 863 /* Forward the segment of a forwarded symbol.  */
 864 #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest,src) \
 865   (SF_GET_GET_SEGMENT (dest) \
 866    ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
 867    : 0)
 868
 869 #ifdef TE_PE
 870 #define obj_handle_link_once(t) obj_coff_pe_handle_link_once (t)
 871 extern void obj_coff_pe_handle_link_once ();
 872 #endif
 873
 874 #endif /* not BFD_ASSEMBLER */
 875
 876 extern const pseudo_typeS coff_pseudo_table[];
 877
 878 #ifndef obj_pop_insert
 879 #define obj_pop_insert() pop_insert (coff_pseudo_table)
 880 #endif
 881
 882 /* In COFF, if a symbol is defined using .def/.val SYM/.endef, it's OK
 883    to redefine the symbol later on.  This can happen if C symbols use
 884    a prefix, and a symbol is defined both with and without the prefix,
 885    as in start/_start/__start in gcc/libgcc1-test.c.  */
 886 #define RESOLVE_SYMBOL_REDEFINITION(sym)                \
 887 (SF_GET_GET_SEGMENT (sym)                               \
 888  ? (sym->sy_frag = frag_now,                            \
 889     S_SET_VALUE (sym, frag_now_fix ()),                 \
 890     S_SET_SEGMENT (sym, now_seg),                       \
 891     0)                                                  \
 892  : 0)
 893
 894 /* Stabs in a coff file go into their own section.  */
 895 #define SEPARATE_STAB_SECTIONS 1
 896
 897 /* We need 12 bytes at the start of the section to hold some initial
 898    information.  */
 899 extern void obj_coff_init_stab_section PARAMS ((segT));
 900 #define INIT_STAB_SECTION(seg) obj_coff_init_stab_section (seg)
 901
 902 /* Store the number of relocations in the section aux entry.  */
 903 #define SET_SECTION_RELOCS(sec, relocs, n) \
 904   SA_SET_SCN_NRELOC (section_symbol (sec), n)
 905
 906 #endif /* OBJ_FORMAT_H */