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, 2003, 2004
   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 extern void coff_obj_symbol_new_hook PARAMS ((symbolS *));
 203 #define obj_symbol_new_hook coff_obj_symbol_new_hook
 204
 205 extern void coff_obj_read_begin_hook PARAMS ((void));
 206 #define obj_read_begin_hook coff_obj_read_begin_hook
 207
 208 /* This file really contains two implementations of the COFF back end.
 209    They are in the process of being merged, but this is only a
 210    preliminary, mechanical merging.  Many definitions that are
 211    identical between the two are still found in both versions.
 212
 213    The first version, with BFD_ASSEMBLER defined, uses high-level BFD
 214    interfaces and data structures.  The second version, with
 215    BFD_ASSEMBLER not defined, also uses BFD, but mostly for swapping
 216    data structures and for doing the actual I/O.  The latter defines
 217    the preprocessor symbols BFD and BFD_HEADERS.  Try not to let this
 218    confuse you.
 219
 220    These two are in the process of being merged, and eventually the
 221    BFD_ASSEMBLER version should take over completely.  Release timing
 222    issues and namespace problems convinced me to merge the two
 223    together in this fashion, a little sooner than I would have liked.
 224    The real merge should be much better done by the time the next
 225    release comes out.
 226
 227    For now, the structure of this file is:
 228         <common>
 229         #ifdef BFD_ASSEMBLER
 230         <one version>
 231         #else
 232         <other version>
 233         #endif
 234         <common>
 235    Unfortunately, the common portions are very small at the moment,
 236    and many declarations or definitions are duplicated.  The structure
 237    of obj-coff.c is similar.
 238
 239    See doc/internals.texi for a brief discussion of the history, if
 240    you care.
 241
 242    Ken Raeburn, 5 May 1994.  */
 243
 244 #ifdef BFD_ASSEMBLER
 245
 246 #include "bfd/libcoff.h"
 247
 248 #define OUTPUT_FLAVOR bfd_target_coff_flavour
 249
 250 /* SYMBOL TABLE */
 251
 252 /* Alter the field names, for now, until we've fixed up the other
 253    references to use the new name.  */
 254 #ifdef TC_I960
 255 #define TC_SYMFIELD_TYPE        symbolS *
 256 #define sy_tc                   bal
 257 #endif
 258
 259 #define OBJ_SYMFIELD_TYPE       unsigned long
 260 #define sy_obj                  sy_flags
 261
 262 /* We can't use the predefined section symbols in bfd/section.c, as
 263    COFF symbols have extra fields.  See bfd/libcoff.h:coff_symbol_type.  */
 264 #ifndef obj_sec_sym_ok_for_reloc
 265 #define obj_sec_sym_ok_for_reloc(SEC)   ((SEC)->owner != 0)
 266 #endif
 267
 268 #define SYM_AUXENT(S) \
 269   (&coffsymbol (symbol_get_bfdsym (S))->native[1].u.auxent)
 270 #define SYM_AUXINFO(S) \
 271   (&coffsymbol (symbol_get_bfdsym (S))->native[1])
 272
 273 #define DO_NOT_STRIP    0
 274
 275 extern void obj_coff_section PARAMS ((int));
 276
 277 /* The number of auxiliary entries.  */
 278 #define S_GET_NUMBER_AUXILIARY(s) \
 279   (coffsymbol (symbol_get_bfdsym (s))->native->u.syment.n_numaux)
 280 /* The number of auxiliary entries.  */
 281 #define S_SET_NUMBER_AUXILIARY(s,v)     (S_GET_NUMBER_AUXILIARY (s) = (v))
 282
 283 /* True if a symbol name is in the string table, i.e. its length is > 8.  */
 284 #define S_IS_STRING(s)          (strlen(S_GET_NAME(s)) > 8 ? 1 : 0)
 285
 286 extern int S_SET_DATA_TYPE PARAMS ((symbolS *, int));
 287 extern int S_SET_STORAGE_CLASS PARAMS ((symbolS *, int));
 288 extern int S_GET_STORAGE_CLASS PARAMS ((symbolS *));
 289 extern void SA_SET_SYM_ENDNDX PARAMS ((symbolS *, symbolS *));
 290
 291 /* Auxiliary entry macros. SA_ stands for symbol auxiliary.  */
 292 /* Omit the tv related fields.  */
 293 /* Accessors.  */
 294
 295 #define SA_GET_SYM_TAGNDX(s)    (SYM_AUXENT (s)->x_sym.x_tagndx.l)
 296 #define SA_GET_SYM_LNNO(s)      (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno)
 297 #define SA_GET_SYM_SIZE(s)      (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size)
 298 #define SA_GET_SYM_FSIZE(s)     (SYM_AUXENT (s)->x_sym.x_misc.x_fsize)
 299 #define SA_GET_SYM_LNNOPTR(s)   (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr)
 300 #define SA_GET_SYM_ENDNDX(s)    (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx)
 301 #define SA_GET_SYM_DIMEN(s,i)   (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)])
 302 #define SA_GET_FILE_FNAME(s)    (SYM_AUXENT (s)->x_file.x_fname)
 303 #define SA_GET_SCN_SCNLEN(s)    (SYM_AUXENT (s)->x_scn.x_scnlen)
 304 #define SA_GET_SCN_NRELOC(s)    (SYM_AUXENT (s)->x_scn.x_nreloc)
 305 #define SA_GET_SCN_NLINNO(s)    (SYM_AUXENT (s)->x_scn.x_nlinno)
 306
 307 #define SA_SET_SYM_LNNO(s,v)    (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno=(v))
 308 #define SA_SET_SYM_SIZE(s,v)    (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size=(v))
 309 #define SA_SET_SYM_FSIZE(s,v)   (SYM_AUXENT (s)->x_sym.x_misc.x_fsize=(v))
 310 #define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr=(v))
 311 #define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)]=(v))
 312 #define SA_SET_FILE_FNAME(s,v)  strncpy(SYM_AUXENT (s)->x_file.x_fname,(v),FILNMLEN)
 313 #define SA_SET_SCN_SCNLEN(s,v)  (SYM_AUXENT (s)->x_scn.x_scnlen=(v))
 314 #define SA_SET_SCN_NRELOC(s,v)  (SYM_AUXENT (s)->x_scn.x_nreloc=(v))
 315 #define SA_SET_SCN_NLINNO(s,v)  (SYM_AUXENT (s)->x_scn.x_nlinno=(v))
 316
 317 /* Internal use only definitions. SF_ stands for symbol flags.
 318
 319    These values can be assigned to sy_symbol.ost_flags field of a symbolS.
 320
 321    You'll break i960 if you shift the SYSPROC bits anywhere else.  for
 322    more on the balname/callname hack, see tc-i960.h.  b.out is done
 323    differently.  */
 324
 325 #define SF_I960_MASK    (0x000001ff)    /* Bits 0-8 are used by the i960 port.  */
 326 #define SF_SYSPROC      (0x0000003f)    /* bits 0-5 are used to store the sysproc number */
 327 #define SF_IS_SYSPROC   (0x00000040)    /* bit 6 marks symbols that are sysprocs */
 328 #define SF_BALNAME      (0x00000080)    /* bit 7 marks BALNAME symbols */
 329 #define SF_CALLNAME     (0x00000100)    /* bit 8 marks CALLNAME symbols */
 330
 331 #define SF_NORMAL_MASK  (0x0000ffff)    /* bits 12-15 are general purpose.  */
 332
 333 #define SF_STATICS      (0x00001000)    /* Mark the .text & all symbols */
 334 #define SF_DEFINED      (0x00002000)    /* Symbol is defined in this file */
 335 #define SF_STRING       (0x00004000)    /* Symbol name length > 8 */
 336 #define SF_LOCAL        (0x00008000)    /* Symbol must not be emitted */
 337
 338 #define SF_DEBUG_MASK   (0xffff0000)    /* bits 16-31 are debug info */
 339
 340 #define SF_FUNCTION     (0x00010000)    /* The symbol is a function */
 341 #define SF_PROCESS      (0x00020000)    /* Process symbol before write */
 342 #define SF_TAGGED       (0x00040000)    /* Is associated with a tag */
 343 #define SF_TAG          (0x00080000)    /* Is a tag */
 344 #define SF_DEBUG        (0x00100000)    /* Is in debug or abs section */
 345 #define SF_GET_SEGMENT  (0x00200000)    /* Get the section of the forward symbol.  */
 346 /* All other bits are unused.  */
 347
 348 /* Accessors.  */
 349 #define SF_GET(s)               (*symbol_get_obj (s))
 350 #define SF_GET_DEBUG(s)         (symbol_get_bfdsym (s)->flags & BSF_DEBUGGING)
 351 #define SF_SET_DEBUG(s)         (symbol_get_bfdsym (s)->flags |= BSF_DEBUGGING)
 352 #define SF_GET_NORMAL_FIELD(s)  (SF_GET (s) & SF_NORMAL_MASK)
 353 #define SF_GET_DEBUG_FIELD(s)   (SF_GET (s) & SF_DEBUG_MASK)
 354 #define SF_GET_FILE(s)          (SF_GET (s) & SF_FILE)
 355 #define SF_GET_STATICS(s)       (SF_GET (s) & SF_STATICS)
 356 #define SF_GET_DEFINED(s)       (SF_GET (s) & SF_DEFINED)
 357 #define SF_GET_STRING(s)        (SF_GET (s) & SF_STRING)
 358 #define SF_GET_LOCAL(s)         (SF_GET (s) & SF_LOCAL)
 359 #define SF_GET_FUNCTION(s)      (SF_GET (s) & SF_FUNCTION)
 360 #define SF_GET_PROCESS(s)       (SF_GET (s) & SF_PROCESS)
 361 #define SF_GET_TAGGED(s)        (SF_GET (s) & SF_TAGGED)
 362 #define SF_GET_TAG(s)           (SF_GET (s) & SF_TAG)
 363 #define SF_GET_GET_SEGMENT(s)   (SF_GET (s) & SF_GET_SEGMENT)
 364 #define SF_GET_I960(s)          (SF_GET (s) & SF_I960_MASK)     /* used by i960 */
 365 #define SF_GET_BALNAME(s)       (SF_GET (s) & SF_BALNAME)       /* used by i960 */
 366 #define SF_GET_CALLNAME(s)      (SF_GET (s) & SF_CALLNAME)      /* used by i960 */
 367 #define SF_GET_IS_SYSPROC(s)    (SF_GET (s) & SF_IS_SYSPROC)    /* used by i960 */
 368 #define SF_GET_SYSPROC(s)       (SF_GET (s) & SF_SYSPROC)       /* used by i960 */
 369
 370 /* Modifiers.  */
 371 #define SF_SET(s,v)             (SF_GET (s) = (v))
 372 #define SF_SET_NORMAL_FIELD(s,v) (SF_GET (s) |= ((v) & SF_NORMAL_MASK))
 373 #define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK))
 374 #define SF_SET_FILE(s)          (SF_GET (s) |= SF_FILE)
 375 #define SF_SET_STATICS(s)       (SF_GET (s) |= SF_STATICS)
 376 #define SF_SET_DEFINED(s)       (SF_GET (s) |= SF_DEFINED)
 377 #define SF_SET_STRING(s)        (SF_GET (s) |= SF_STRING)
 378 #define SF_SET_LOCAL(s)         (SF_GET (s) |= SF_LOCAL)
 379 #define SF_CLEAR_LOCAL(s)       (SF_GET (s) &= ~SF_LOCAL)
 380 #define SF_SET_FUNCTION(s)      (SF_GET (s) |= SF_FUNCTION)
 381 #define SF_SET_PROCESS(s)       (SF_GET (s) |= SF_PROCESS)
 382 #define SF_SET_TAGGED(s)        (SF_GET (s) |= SF_TAGGED)
 383 #define SF_SET_TAG(s)           (SF_GET (s) |= SF_TAG)
 384 #define SF_SET_GET_SEGMENT(s)   (SF_GET (s) |= SF_GET_SEGMENT)
 385 #define SF_SET_I960(s,v)        (SF_GET (s) |= ((v) & SF_I960_MASK))    /* used by i960 */
 386 #define SF_SET_BALNAME(s)       (SF_GET (s) |= SF_BALNAME)      /* used by i960 */
 387 #define SF_SET_CALLNAME(s)      (SF_GET (s) |= SF_CALLNAME)     /* used by i960 */
 388 #define SF_SET_IS_SYSPROC(s)    (SF_GET (s) |= SF_IS_SYSPROC)   /* used by i960 */
 389 #define SF_SET_SYSPROC(s,v)     (SF_GET (s) |= ((v) & SF_SYSPROC))      /* used by i960 */
 390
 391 /* --------------  Line number handling ------- */
 392 extern int text_lineno_number;
 393 extern int coff_line_base;
 394 extern int coff_n_line_nos;
 395
 396 #define obj_emit_lineno(WHERE,LINE,FILE_START)  abort ()
 397 extern void coff_add_linesym PARAMS ((symbolS *));
 398
 399 void c_dot_file_symbol PARAMS ((const char *filename));
 400 #define obj_app_file c_dot_file_symbol
 401
 402 extern void coff_frob_symbol PARAMS ((symbolS *, int *));
 403 extern void coff_adjust_symtab PARAMS ((void));
 404 extern void coff_frob_section PARAMS ((segT));
 405 extern void coff_adjust_section_syms PARAMS ((bfd *, asection *, PTR));
 406 extern void coff_frob_file_after_relocs PARAMS ((void));
 407 #define obj_frob_symbol(S,P)    coff_frob_symbol(S,&P)
 408 #ifndef obj_adjust_symtab
 409 #define obj_adjust_symtab()     coff_adjust_symtab()
 410 #endif
 411 #define obj_frob_section(S)     coff_frob_section (S)
 412 #define obj_frob_file_after_relocs() coff_frob_file_after_relocs ()
 413
 414 extern symbolS *coff_last_function;
 415
 416 /* Forward the segment of a forwarded symbol, handle assignments that
 417    just copy symbol values, etc.  */
 418 #ifndef OBJ_COPY_SYMBOL_ATTRIBUTES
 419 #ifndef TE_I386AIX
 420 #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest,src) \
 421   (SF_GET_GET_SEGMENT (dest) \
 422    ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
 423    : 0)
 424 #else
 425 #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest,src) \
 426   (SF_GET_GET_SEGMENT (dest) && S_GET_SEGMENT (dest) == SEG_UNKNOWN \
 427    ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
 428    : 0)
 429 #endif
 430 #endif
 431
 432 /* Sanity check.  */
 433
 434 #ifdef TC_I960
 435 #ifndef C_LEAFSTAT
 436 hey ! Where is the C_LEAFSTAT definition ? i960 - coff support is depending on it.
 437 #endif /* no C_LEAFSTAT */
 438 #endif /* TC_I960 */
 439
 440 #else /* not BFD_ASSEMBLER */
 441
 442 #if defined TC_A29K || defined TC_OR32
 443 /* Allow translate from aout relocs to coff relocs.  */
 444 #define NO_RELOC 20
 445 #define RELOC_32 1
 446 #define RELOC_8 2
 447 #define RELOC_CONST 3
 448 #define RELOC_CONSTH 4
 449 #define RELOC_JUMPTARG 5
 450 #define RELOC_BASE22 6
 451 #define RELOC_HI22 7
 452 #define RELOC_LO10 8
 453 #define RELOC_BASE13 9
 454 #define RELOC_WDISP22 10
 455 #define RELOC_WDISP30 11
 456 #endif
 457
 458 extern const segT N_TYPE_seg[];
 459
 460 /* Magic number of paged executable.  */
 461 #define DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE    0x8300
 462
 463 /* SYMBOL TABLE */
 464
 465 /* Symbol table entry data type.  */
 466
 467 typedef struct
 468 {
 469   /* Basic symbol */
 470   struct internal_syment ost_entry;
 471   /* Auxiliary entry.  */
 472   union internal_auxent ost_auxent[OBJ_COFF_MAX_AUXENTRIES];
 473   /* obj_coff internal use only flags.  */
 474   unsigned int ost_flags;
 475 } obj_symbol_type;
 476
 477 #ifndef DO_NOT_STRIP
 478 #define DO_NOT_STRIP    0
 479 #endif
 480 /* Symbol table macros and constants.  */
 481
 482 /* Possible and useful section number in symbol table
 483    The values of TEXT, DATA and BSS may not be portable.  */
 484
 485 #define C_ABS_SECTION           N_ABS
 486 #define C_UNDEF_SECTION         N_UNDEF
 487 #define C_DEBUG_SECTION         N_DEBUG
 488 #define C_NTV_SECTION           N_TV
 489 #define C_PTV_SECTION           P_TV
 490 #define C_REGISTER_SECTION      50
 491
 492 /* Macros to extract information from a symbol table entry.
 493    This syntactic indirection allows independence regarding a.out or coff.
 494    The argument (s) of all these macros is a pointer to a symbol table entry.  */
 495
 496 /* Predicates.  */
 497 /* True if the symbol is external.  */
 498 #define S_IS_EXTERNAL(s)  \
 499   ((s)->sy_symbol.ost_entry.n_scnum == C_UNDEF_SECTION)
 500
 501 /* True if symbol has been defined, ie :
 502    section > 0 (DATA, TEXT or BSS)
 503    section == 0 and value > 0 (external bss symbol).  */
 504 #define S_IS_DEFINED(s) \
 505   ((s)->sy_symbol.ost_entry.n_scnum > C_UNDEF_SECTION \
 506    || ((s)->sy_symbol.ost_entry.n_scnum == C_UNDEF_SECTION \
 507        && S_GET_VALUE (s) > 0) \
 508    || ((s)->sy_symbol.ost_entry.n_scnum == C_ABS_SECTION))
 509
 510 /* Return true for symbols that should not be reduced to section
 511    symbols or eliminated from expressions, because they may be
 512    overridden by the linker.  */
 513 #define S_FORCE_RELOC(s, strict) \
 514   (!SEG_NORMAL (S_GET_SEGMENT (s)) || (strict && S_IS_WEAK (s)))
 515
 516 /* True if a debug special symbol entry.  */
 517 #define S_IS_DEBUG(s) \
 518   ((s)->sy_symbol.ost_entry.n_scnum == C_DEBUG_SECTION)
 519
 520 /* True if a symbol is local symbol name.  */
 521 /* A symbol name whose name includes ^A is a gas internal pseudo symbol.  */
 522 #define S_IS_LOCAL(s) \
 523   ((s)->sy_symbol.ost_entry.n_scnum == C_REGISTER_SECTION \
 524    || (S_LOCAL_NAME(s) && ! flag_keep_locals && ! S_IS_DEBUG (s)) \
 525    || strchr (S_GET_NAME (s), '\001') != NULL \
 526    || strchr (S_GET_NAME (s), '\002') != NULL \
 527    || (flag_strip_local_absolute \
 528        && !S_IS_EXTERNAL(s) \
 529        && (s)->sy_symbol.ost_entry.n_scnum == C_ABS_SECTION))
 530
 531 /* True if a symbol is not defined in this file.  */
 532 #define S_IS_EXTERN(s)          ((s)->sy_symbol.ost_entry.n_scnum == 0 \
 533                                  && S_GET_VALUE (s) == 0)
 534
 535 /* True if a symbol can be multiply defined (bss symbols have this def
 536    though it is bad practice).  */
 537 #define S_IS_COMMON(s)          ((s)->sy_symbol.ost_entry.n_scnum == 0 \
 538                                  && S_GET_VALUE (s) != 0)
 539
 540 /* True if a symbol name is in the string table, i.e. its length is > 8.  */
 541 #define S_IS_STRING(s)          (strlen(S_GET_NAME(s)) > 8 ? 1 : 0)
 542
 543 /* True if a symbol is defined as weak.  */
 544 #ifdef TE_PE
 545 #define S_IS_WEAK(s) \
 546   ((s)->sy_symbol.ost_entry.n_sclass == C_NT_WEAK \
 547    || (s)->sy_symbol.ost_entry.n_sclass == C_WEAKEXT)
 548 #else
 549 #define S_IS_WEAK(s) \
 550   ((s)->sy_symbol.ost_entry.n_sclass == C_WEAKEXT)
 551 #endif
 552
 553 /* Accessors.  */
 554 /* The name of the symbol.  */
 555 #define S_GET_NAME(s)           ((char*) (s)->sy_symbol.ost_entry.n_offset)
 556
 557 /* The pointer to the string table.  */
 558 #define S_GET_OFFSET(s)         ((s)->sy_symbol.ost_entry.n_offset)
 559
 560 /* The numeric value of the segment.  */
 561 #define S_GET_SEGMENT(s)   s_get_segment(s)
 562
 563 /* The data type.  */
 564 #define S_GET_DATA_TYPE(s)      ((s)->sy_symbol.ost_entry.n_type)
 565
 566 /* The storage class.  */
 567 #define S_GET_STORAGE_CLASS(s)  ((s)->sy_symbol.ost_entry.n_sclass)
 568
 569 /* The number of auxiliary entries.  */
 570 #define S_GET_NUMBER_AUXILIARY(s)       ((s)->sy_symbol.ost_entry.n_numaux)
 571
 572 /* Modifiers.  */
 573 /* Set the name of the symbol.  */
 574 #define S_SET_NAME(s,v) \
 575   ((s)->sy_symbol.ost_entry.n_offset = (unsigned long) (v))
 576
 577 /* Set the offset of the symbol.  */
 578 #define S_SET_OFFSET(s,v) \
 579   ((s)->sy_symbol.ost_entry.n_offset = (v))
 580
 581 /* The numeric value of the segment.  */
 582 #define S_SET_SEGMENT(s,v) \
 583   ((s)->sy_symbol.ost_entry.n_scnum = SEGMENT_TO_SYMBOL_TYPE(v))
 584
 585 /* The data type.  */
 586 #define S_SET_DATA_TYPE(s,v) \
 587   ((s)->sy_symbol.ost_entry.n_type = (v))
 588
 589 /* The storage class.  */
 590 #define S_SET_STORAGE_CLASS(s,v) \
 591   ((s)->sy_symbol.ost_entry.n_sclass = (v))
 592
 593 /* The number of auxiliary entries.  */
 594 #define S_SET_NUMBER_AUXILIARY(s,v) \
 595   ((s)->sy_symbol.ost_entry.n_numaux = (v))
 596
 597 /* Additional modifiers.  */
 598 /* The symbol is external (does not mean undefined).  */
 599 #define S_SET_EXTERNAL(s) \
 600   { S_SET_STORAGE_CLASS(s, C_EXT) ; SF_CLEAR_LOCAL(s); }
 601
 602 /* Auxiliary entry macros. SA_ stands for symbol auxiliary.  */
 603 /* Omit the tv related fields.  */
 604 /* Accessors.  */
 605 #define SYM_AUXENT(S)   (&(S)->sy_symbol.ost_auxent[0])
 606
 607 #define SA_GET_SYM_TAGNDX(s)    (SYM_AUXENT (s)->x_sym.x_tagndx.l)
 608 #define SA_GET_SYM_LNNO(s)      (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno)
 609 #define SA_GET_SYM_SIZE(s)      (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size)
 610 #define SA_GET_SYM_FSIZE(s)     (SYM_AUXENT (s)->x_sym.x_misc.x_fsize)
 611 #define SA_GET_SYM_LNNOPTR(s)   (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr)
 612 #define SA_GET_SYM_ENDNDX(s)    (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx.l)
 613 #define SA_GET_SYM_DIMEN(s,i)   (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)])
 614 #define SA_GET_FILE_FNAME(s)    (SYM_AUXENT (s)->x_file.x_fname)
 615 #define SA_GET_FILE_FNAME_OFFSET(s)  (SYM_AUXENT (s)->x_file.x_n.x_offset)
 616 #define SA_GET_FILE_FNAME_ZEROS(s)   (SYM_AUXENT (s)->x_file.x_n.x_zeroes)
 617 #define SA_GET_SCN_SCNLEN(s)    (SYM_AUXENT (s)->x_scn.x_scnlen)
 618 #define SA_GET_SCN_NRELOC(s)    (SYM_AUXENT (s)->x_scn.x_nreloc)
 619 #define SA_GET_SCN_NLINNO(s)    (SYM_AUXENT (s)->x_scn.x_nlinno)
 620
 621 /* Modifiers.  */
 622 #define SA_SET_SYM_TAGNDX(s,v)  (SYM_AUXENT (s)->x_sym.x_tagndx.l=(v))
 623 #define SA_SET_SYM_LNNO(s,v)    (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno=(v))
 624 #define SA_SET_SYM_SIZE(s,v)    (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size=(v))
 625 #define SA_SET_SYM_FSIZE(s,v)   (SYM_AUXENT (s)->x_sym.x_misc.x_fsize=(v))
 626 #define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr=(v))
 627 #define SA_SET_SYM_ENDNDX(s,v)  (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx.l=(v))
 628 #define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)]=(v))
 629 #define SA_SET_FILE_FNAME(s,v)  strncpy(SYM_AUXENT (s)->x_file.x_fname,(v),FILNMLEN)
 630 #define SA_SET_FILE_FNAME_OFFSET(s,v) (SYM_AUXENT (s)->x_file.x_n.x_offset=(v))
 631 #define SA_SET_FILE_FNAME_ZEROS(s,v)  (SYM_AUXENT (s)->x_file.x_n.x_zeroes=(v))
 632 #define SA_SET_SCN_SCNLEN(s,v)  (SYM_AUXENT (s)->x_scn.x_scnlen=(v))
 633 #define SA_SET_SCN_NRELOC(s,v)  (SYM_AUXENT (s)->x_scn.x_nreloc=(v))
 634 #define SA_SET_SCN_NLINNO(s,v)  (SYM_AUXENT (s)->x_scn.x_nlinno=(v))
 635
 636 /* Internal use only definitions. SF_ stands for symbol flags.
 637
 638    These values can be assigned to sy_symbol.ost_flags field of a symbolS.
 639
 640    You'll break i960 if you shift the SYSPROC bits anywhere else.  for
 641    more on the balname/callname hack, see tc-i960.h.  b.out is done
 642    differently.  */
 643
 644 #define SF_I960_MASK    (0x000001ff)    /* Bits 0-8 are used by the i960 port.  */
 645 #define SF_SYSPROC      (0x0000003f)    /* bits 0-5 are used to store the sysproc number */
 646 #define SF_IS_SYSPROC   (0x00000040)    /* bit 6 marks symbols that are sysprocs */
 647 #define SF_BALNAME      (0x00000080)    /* bit 7 marks BALNAME symbols */
 648 #define SF_CALLNAME     (0x00000100)    /* bit 8 marks CALLNAME symbols */
 649
 650 #define SF_NORMAL_MASK  (0x0000ffff)    /* bits 12-15 are general purpose.  */
 651
 652 #define SF_STATICS      (0x00001000)    /* Mark the .text & all symbols */
 653 #define SF_DEFINED      (0x00002000)    /* Symbol is defined in this file */
 654 #define SF_STRING       (0x00004000)    /* Symbol name length > 8 */
 655 #define SF_LOCAL        (0x00008000)    /* Symbol must not be emitted */
 656
 657 #define SF_DEBUG_MASK   (0xffff0000)    /* bits 16-31 are debug info */
 658
 659 #define SF_FUNCTION     (0x00010000)    /* The symbol is a function */
 660 #define SF_PROCESS      (0x00020000)    /* Process symbol before write */
 661 #define SF_TAGGED       (0x00040000)    /* Is associated with a tag */
 662 #define SF_TAG          (0x00080000)    /* Is a tag */
 663 #define SF_DEBUG        (0x00100000)    /* Is in debug or abs section */
 664 #define SF_GET_SEGMENT  (0x00200000)    /* Get the section of the forward symbol.  */
 665 #define SF_ADJ_LNNOPTR  (0x00400000)    /* Has a lnnoptr */
 666 /* All other bits are unused.  */
 667
 668 /* Accessors.  */
 669 #define SF_GET(s)               ((s)->sy_symbol.ost_flags)
 670 #define SF_GET_NORMAL_FIELD(s)  (SF_GET (s) & SF_NORMAL_MASK)
 671 #define SF_GET_DEBUG_FIELD(s)   (SF_GET (s) & SF_DEBUG_MASK)
 672 #define SF_GET_FILE(s)          (SF_GET (s) & SF_FILE)
 673 #define SF_GET_STATICS(s)       (SF_GET (s) & SF_STATICS)
 674 #define SF_GET_DEFINED(s)       (SF_GET (s) & SF_DEFINED)
 675 #define SF_GET_STRING(s)        (SF_GET (s) & SF_STRING)
 676 #define SF_GET_LOCAL(s)         (SF_GET (s) & SF_LOCAL)
 677 #define SF_GET_FUNCTION(s)      (SF_GET (s) & SF_FUNCTION)
 678 #define SF_GET_PROCESS(s)       (SF_GET (s) & SF_PROCESS)
 679 #define SF_GET_DEBUG(s)         (SF_GET (s) & SF_DEBUG)
 680 #define SF_GET_TAGGED(s)        (SF_GET (s) & SF_TAGGED)
 681 #define SF_GET_TAG(s)           (SF_GET (s) & SF_TAG)
 682 #define SF_GET_GET_SEGMENT(s)   (SF_GET (s) & SF_GET_SEGMENT)
 683 #define SF_GET_ADJ_LNNOPTR(s)   (SF_GET (s) & SF_ADJ_LNNOPTR)
 684 #define SF_GET_I960(s)          (SF_GET (s) & SF_I960_MASK)     /* used by i960 */
 685 #define SF_GET_BALNAME(s)       (SF_GET (s) & SF_BALNAME)       /* used by i960 */
 686 #define SF_GET_CALLNAME(s)      (SF_GET (s) & SF_CALLNAME)      /* used by i960 */
 687 #define SF_GET_IS_SYSPROC(s)    (SF_GET (s) & SF_IS_SYSPROC)    /* used by i960 */
 688 #define SF_GET_SYSPROC(s)       (SF_GET (s) & SF_SYSPROC)       /* used by i960 */
 689
 690 /* Modifiers.  */
 691 #define SF_SET(s,v)             (SF_GET (s) = (v))
 692 #define SF_SET_NORMAL_FIELD(s,v) (SF_GET (s) |= ((v) & SF_NORMAL_MASK))
 693 #define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK))
 694 #define SF_SET_FILE(s)          (SF_GET (s) |= SF_FILE)
 695 #define SF_SET_STATICS(s)       (SF_GET (s) |= SF_STATICS)
 696 #define SF_SET_DEFINED(s)       (SF_GET (s) |= SF_DEFINED)
 697 #define SF_SET_STRING(s)        (SF_GET (s) |= SF_STRING)
 698 #define SF_SET_LOCAL(s)         (SF_GET (s) |= SF_LOCAL)
 699 #define SF_CLEAR_LOCAL(s)       (SF_GET (s) &= ~SF_LOCAL)
 700 #define SF_SET_FUNCTION(s)      (SF_GET (s) |= SF_FUNCTION)
 701 #define SF_SET_PROCESS(s)       (SF_GET (s) |= SF_PROCESS)
 702 #define SF_SET_DEBUG(s)         (SF_GET (s) |= SF_DEBUG)
 703 #define SF_SET_TAGGED(s)        (SF_GET (s) |= SF_TAGGED)
 704 #define SF_SET_TAG(s)           (SF_GET (s) |= SF_TAG)
 705 #define SF_SET_GET_SEGMENT(s)   (SF_GET (s) |= SF_GET_SEGMENT)
 706 #define SF_SET_ADJ_LNNOPTR(s)   (SF_GET (s) |= SF_ADJ_LNNOPTR)
 707 #define SF_SET_I960(s,v)        (SF_GET (s) |= ((v) & SF_I960_MASK))    /* used by i960 */
 708 #define SF_SET_BALNAME(s)       (SF_GET (s) |= SF_BALNAME)      /* used by i960 */
 709 #define SF_SET_CALLNAME(s)      (SF_GET (s) |= SF_CALLNAME)     /* used by i960 */
 710 #define SF_SET_IS_SYSPROC(s)    (SF_GET (s) |= SF_IS_SYSPROC)   /* used by i960 */
 711 #define SF_SET_SYSPROC(s,v)     (SF_GET (s) |= ((v) & SF_SYSPROC))      /* used by i960 */
 712
 713 /* File header macro and type definition.  */
 714
 715 /* File position calculators. Beware to use them when all the
 716    appropriate fields are set in the header.  */
 717
 718 #ifdef OBJ_COFF_OMIT_OPTIONAL_HEADER
 719 #define OBJ_COFF_AOUTHDRSZ (0)
 720 #else
 721 #define OBJ_COFF_AOUTHDRSZ (AOUTHDRSZ)
 722 #endif /* OBJ_COFF_OMIT_OPTIONAL_HEADER */
 723
 724 #define H_GET_FILE_SIZE(h) \
 725     (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
 726            H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
 727            H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h) + \
 728            H_GET_RELOCATION_SIZE(h) + H_GET_LINENO_SIZE(h) + \
 729            H_GET_SYMBOL_TABLE_SIZE(h) + \
 730            (h)->string_table_size)
 731 #define H_GET_TEXT_FILE_OFFSET(h) \
 732     (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
 733            H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ)
 734 #define H_GET_DATA_FILE_OFFSET(h) \
 735     (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
 736            H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
 737            H_GET_TEXT_SIZE(h))
 738 #define H_GET_BSS_FILE_OFFSET(h) 0
 739 #define H_GET_RELOCATION_FILE_OFFSET(h) \
 740     (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
 741            H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
 742            H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h))
 743 #define H_GET_LINENO_FILE_OFFSET(h) \
 744     (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
 745            H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
 746            H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h) + \
 747            H_GET_RELOCATION_SIZE(h))
 748 #define H_GET_SYMBOL_TABLE_FILE_OFFSET(h) \
 749     (long) (FILHSZ + OBJ_COFF_AOUTHDRSZ + \
 750            H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
 751            H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h) + \
 752            H_GET_RELOCATION_SIZE(h) + H_GET_LINENO_SIZE(h))
 753
 754 /* Accessors.  */
 755 /* aouthdr.  */
 756 #define H_GET_MAGIC_NUMBER(h)           ((h)->aouthdr.magic)
 757 #define H_GET_VERSION_STAMP(h)          ((h)->aouthdr.vstamp)
 758 #define H_GET_TEXT_SIZE(h)              ((h)->aouthdr.tsize)
 759 #define H_GET_DATA_SIZE(h)              ((h)->aouthdr.dsize)
 760 #define H_GET_BSS_SIZE(h)               ((h)->aouthdr.bsize)
 761 #define H_GET_ENTRY_POINT(h)            ((h)->aouthdr.entry)
 762 #define H_GET_TEXT_START(h)             ((h)->aouthdr.text_start)
 763 #define H_GET_DATA_START(h)             ((h)->aouthdr.data_start)
 764 /* filehdr.  */
 765 #define H_GET_FILE_MAGIC_NUMBER(h)      ((h)->filehdr.f_magic)
 766 #define H_GET_NUMBER_OF_SECTIONS(h)     ((h)->filehdr.f_nscns)
 767 #define H_GET_TIME_STAMP(h)             ((h)->filehdr.f_timdat)
 768 #define H_GET_SYMBOL_TABLE_POINTER(h)   ((h)->filehdr.f_symptr)
 769 #define H_GET_SYMBOL_COUNT(h)           ((h)->filehdr.f_nsyms)
 770 #define H_GET_SYMBOL_TABLE_SIZE(h)      (H_GET_SYMBOL_COUNT(h) * SYMESZ)
 771 #define H_GET_SIZEOF_OPTIONAL_HEADER(h) ((h)->filehdr.f_opthdr)
 772 #define H_GET_FLAGS(h)                  ((h)->filehdr.f_flags)
 773 /* Extra fields to achieve bsd a.out compatibility and for convenience.  */
 774 #define H_GET_RELOCATION_SIZE(h)        ((h)->relocation_size)
 775 #define H_GET_STRING_SIZE(h)            ((h)->string_table_size)
 776 #define H_GET_LINENO_SIZE(h)            ((h)->lineno_size)
 777
 778 #ifndef OBJ_COFF_OMIT_OPTIONAL_HEADER
 779 #define H_GET_HEADER_SIZE(h)            (sizeof (FILHDR) \
 780                                          + sizeof (AOUTHDR)\
 781                                          + (H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ))
 782 #else /* OBJ_COFF_OMIT_OPTIONAL_HEADER */
 783 #define H_GET_HEADER_SIZE(h)            (sizeof (FILHDR) \
 784                                          + (H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ))
 785 #endif /* OBJ_COFF_OMIT_OPTIONAL_HEADER */
 786
 787 #define H_GET_TEXT_RELOCATION_SIZE(h)   (text_section_header.s_nreloc * RELSZ)
 788 #define H_GET_DATA_RELOCATION_SIZE(h)   (data_section_header.s_nreloc * RELSZ)
 789
 790 /* Modifiers.  */
 791 /* aouthdr.  */
 792 #define H_SET_MAGIC_NUMBER(h,v)         ((h)->aouthdr.magic = (v))
 793 #define H_SET_VERSION_STAMP(h,v)        ((h)->aouthdr.vstamp = (v))
 794 #define H_SET_TEXT_SIZE(h,v)            ((h)->aouthdr.tsize = (v))
 795 #define H_SET_DATA_SIZE(h,v)            ((h)->aouthdr.dsize = (v))
 796 #define H_SET_BSS_SIZE(h,v)             ((h)->aouthdr.bsize = (v))
 797 #define H_SET_ENTRY_POINT(h,v)          ((h)->aouthdr.entry = (v))
 798 #define H_SET_TEXT_START(h,v)           ((h)->aouthdr.text_start = (v))
 799 #define H_SET_DATA_START(h,v)           ((h)->aouthdr.data_start = (v))
 800 /* filehdr.  */
 801 #define H_SET_FILE_MAGIC_NUMBER(h,v)    ((h)->filehdr.f_magic = (v))
 802 #define H_SET_NUMBER_OF_SECTIONS(h,v)   ((h)->filehdr.f_nscns = (v))
 803 #define H_SET_TIME_STAMP(h,v)           ((h)->filehdr.f_timdat = (v))
 804 #define H_SET_SYMBOL_TABLE_POINTER(h,v) ((h)->filehdr.f_symptr = (v))
 805 #define H_SET_SYMBOL_TABLE_SIZE(h,v)    ((h)->filehdr.f_nsyms = (v))
 806 #define H_SET_SIZEOF_OPTIONAL_HEADER(h,v) ((h)->filehdr.f_opthdr = (v))
 807 #define H_SET_FLAGS(h,v)                ((h)->filehdr.f_flags = (v))
 808 /* Extra fields to achieve bsd a.out compatibility and for convenience.  */
 809 #define H_SET_RELOCATION_SIZE(h,t,d)    ((h)->relocation_size = (t)+(d))
 810 #define H_SET_STRING_SIZE(h,v)          ((h)->string_table_size = (v))
 811 #define H_SET_LINENO_SIZE(h,v)          ((h)->lineno_size = (v))
 812
 813 /* Segment flipping.  */
 814
 815 typedef struct
 816 {
 817   struct internal_aouthdr aouthdr;      /* a.out header */
 818   struct internal_filehdr filehdr;      /* File header, not machine dep.  */
 819   long string_table_size;               /* names + '\0' + sizeof (int) */
 820   long relocation_size;                 /* Cumulated size of relocation
 821                                            information for all sections in
 822                                            bytes.  */
 823   long lineno_size;                     /* Size of the line number information
 824                                            table in bytes.  */
 825 } object_headers;
 826
 827 struct lineno_list
 828 {
 829   struct bfd_internal_lineno line;
 830   char *frag;                   /* Frag to which the line number is related.  */
 831   struct lineno_list *next;     /* Forward chain pointer.  */
 832 };
 833
 834 #define obj_segment_name(i) (segment_info[(int) (i)].scnhdr.s_name)
 835
 836 #define obj_add_segment(s) obj_coff_add_segment (s)
 837
 838 extern segT obj_coff_add_segment PARAMS ((const char *));
 839
 840 extern void obj_coff_section PARAMS ((int));
 841
 842 extern void c_dot_file_symbol PARAMS ((char *filename));
 843 #define obj_app_file c_dot_file_symbol
 844 extern void obj_extra_stuff PARAMS ((object_headers * headers));
 845
 846 extern segT s_get_segment PARAMS ((symbolS *ptr));
 847
 848 extern void c_section_header PARAMS ((struct internal_scnhdr * header,
 849                                       char *name,
 850                                       long core_address,
 851                                       long size,
 852                                       long data_ptr,
 853                                       long reloc_ptr,
 854                                       long lineno_ptr,
 855                                       long reloc_number,
 856                                       long lineno_number,
 857                                       long alignment));
 858
 859 #ifndef tc_coff_symbol_emit_hook
 860 void tc_coff_symbol_emit_hook PARAMS ((symbolS *));
 861 #endif
 862
 863 /* Sanity check.  */
 864
 865 #ifdef TC_I960
 866 #ifndef C_LEAFSTAT
 867 hey ! Where is the C_LEAFSTAT definition ? i960 - coff support is depending on it.
 868 #endif /* no C_LEAFSTAT */
 869 #endif /* TC_I960 */
 870 extern struct internal_scnhdr data_section_header;
 871 extern struct internal_scnhdr text_section_header;
 872
 873 /* Forward the segment of a forwarded symbol.  */
 874 #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest,src) \
 875   (SF_GET_GET_SEGMENT (dest) \
 876    ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
 877    : 0)
 878
 879 #ifdef TE_PE
 880 #define obj_handle_link_once(t) obj_coff_pe_handle_link_once (t)
 881 extern void obj_coff_pe_handle_link_once ();
 882 #endif
 883
 884 #endif /* not BFD_ASSEMBLER */
 885
 886 extern const pseudo_typeS coff_pseudo_table[];
 887
 888 #ifndef obj_pop_insert
 889 #define obj_pop_insert() pop_insert (coff_pseudo_table)
 890 #endif
 891
 892 /* In COFF, if a symbol is defined using .def/.val SYM/.endef, it's OK
 893    to redefine the symbol later on.  This can happen if C symbols use
 894    a prefix, and a symbol is defined both with and without the prefix,
 895    as in start/_start/__start in gcc/libgcc1-test.c.  */
 896 #define RESOLVE_SYMBOL_REDEFINITION(sym)                \
 897 (SF_GET_GET_SEGMENT (sym)                               \
 898  ? (sym->sy_frag = frag_now,                            \
 899     S_SET_VALUE (sym, frag_now_fix ()),                 \
 900     S_SET_SEGMENT (sym, now_seg),                       \
 901     0)                                                  \
 902  : 0)
 903
 904 /* Stabs in a coff file go into their own section.  */
 905 #define SEPARATE_STAB_SECTIONS 1
 906
 907 /* We need 12 bytes at the start of the section to hold some initial
 908    information.  */
 909 extern void obj_coff_init_stab_section PARAMS ((segT));
 910 #define INIT_STAB_SECTION(seg) obj_coff_init_stab_section (seg)
 911
 912 /* Store the number of relocations in the section aux entry.  */
 913 #define SET_SECTION_RELOCS(sec, relocs, n) \
 914   SA_SET_SCN_NRELOC (section_symbol (sec), n)
 915
 916 #endif /* OBJ_FORMAT_H */