gas/config/obj-coff.h

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