gas/config/obj-coff.h

   1 /* coff object file format
   2    Copyright (C) 1989, 1990, 1991 Free Software Foundation, Inc.
   3
   4 This file is part of GAS.
   5
   6 GAS is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 1, or (at your option)
   9 any later version.
  10
  11 GAS is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GAS; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20 /* $Id$ */
  21
  22 #define OBJ_COFF 1
  23
  24 #include "targ-cpu.h"
  25
  26 #include "coff.gnu.h"
  27
  28 #ifdef USE_NATIVE_HEADERS
  29 #include <filehdr.h>
  30 #include <aouthdr.h>
  31 #include <scnhdr.h>
  32 #include <storclass.h>
  33 #include <linenum.h>
  34 #include <syms.h>
  35 #include <reloc.h>
  36 #include <sys/types.h>
  37 #endif /* USE_NATIVE_HEADERS */
  38
  39 /* Define some processor dependent values according to the processor we are
  40    on. */
  41 #ifdef TC_M68K
  42
  43 #define BYTE_ORDERING           F_AR32W    /* See filehdr.h for more info. */
  44 #ifndef FILE_HEADER_MAGIC
  45 #define FILE_HEADER_MAGIC       MC68MAGIC  /* ... */
  46 #endif /* FILE_HEADER_MAGIC */
  47
  48 #elif defined(TC_I386)
  49
  50 #define BYTE_ORDERING           F_AR32WR   /* See filehdr.h for more info. */
  51 #ifndef FILE_HEADER_MAGIC
  52 #define FILE_HEADER_MAGIC       I386MAGIC  /* ... */
  53 #endif /* FILE_HEADER_MAGIC */
  54
  55 #elif defined(TC_I960)
  56
  57 #define BYTE_ORDERING           F_AR32WR   /* See filehdr.h for more info. */
  58 #ifndef FILE_HEADER_MAGIC
  59 #define FILE_HEADER_MAGIC       I960ROMAGIC  /* ... */
  60 #endif /* FILE_HEADER_MAGIC */
  61
  62 #elif defined(TC_A29K)
  63
  64 #define BYTE_ORDERING           F_AR32W /* big endian. */
  65 #ifndef FILE_HEADER_MAGIC
  66 #define FILE_HEADER_MAGIC       SIPFBOMAGIC
  67 #endif /* FILE_HEADER_MAGIC */
  68
  69 #else
  70 you lose
  71 #endif
  72
  73 #ifndef OBJ_COFF_MAX_AUXENTRIES
  74 #define OBJ_COFF_MAX_AUXENTRIES 1
  75 #endif /* OBJ_COFF_MAX_AUXENTRIES */
  76
  77 extern const short seg_N_TYPE[];
  78 extern const segT  N_TYPE_seg[];
  79
  80 /* Magic number of paged executable. */
  81 #define DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE    (OMAGIC)
  82
  83 /* Add these definitions to have a consistent convention for all the
  84    types used in COFF format. */
  85 #define AOUTHDR                 struct aouthdr
  86 #define AOUTHDRSZ               sizeof(AOUTHDR)
  87
  88 /* SYMBOL TABLE */
  89
  90  /* targets may also set this */
  91 #ifndef SYMBOLS_NEED_BACKPOINTERS
  92 #define SYMBOLS_NEED_BACKPOINTERS 1
  93 #endif /* SYMBOLS_NEED_BACKPOINTERS */
  94
  95 /* Symbol table entry data type */
  96
  97 typedef struct {
  98         SYMENT ost_entry;       /* Basic symbol */
  99         AUXENT ost_auxent[OBJ_COFF_MAX_AUXENTRIES];      /* Auxiliary entry. */
 100         unsigned int ost_flags; /* obj_coff internal use only flags */
 101 } obj_symbol_type;
 102
 103 /* If compiler generate leading underscores, remove them. */
 104
 105 #ifndef STRIP_UNDERSCORE
 106 #define STRIP_UNDERSCORE 0
 107 #endif /* STRIP_UNDERSCORE */
 108 #define DO_NOT_STRIP    0
 109 #define DO_STRIP        1
 110
 111 /* Symbol table macros and constants */
 112
 113 /* Possible and usefull section number in symbol table
 114  * The values of TEXT, DATA and BSS may not be portable.
 115  */
 116
 117 #define C_TEXT_SECTION          ((short)1)
 118 #define C_DATA_SECTION          ((short)2)
 119 #define C_BSS_SECTION           ((short)3)
 120 #define C_ABS_SECTION           N_ABS
 121 #define C_UNDEF_SECTION         N_UNDEF
 122 #define C_DEBUG_SECTION         N_DEBUG
 123 #define C_NTV_SECTION           N_TV
 124 #define C_PTV_SECTION           P_TV
 125
 126 /*
 127  *  Macros to extract information from a symbol table entry.
 128  *  This syntaxic indirection allows independence regarding a.out or coff.
 129  *  The argument (s) of all these macros is a pointer to a symbol table entry.
 130  */
 131
 132 /* Predicates */
 133 /* True if the symbol is external */
 134 #define S_IS_EXTERNAL(s)        ((s)->sy_symbol.ost_entry.n_scnum == C_UNDEF_SECTION)
 135 /* True if symbol has been defined, ie :
 136   section > 0 (DATA, TEXT or BSS)
 137   section == 0 and value > 0 (external bss symbol) */
 138 #define S_IS_DEFINED(s)         ((s)->sy_symbol.ost_entry.n_scnum > C_UNDEF_SECTION || \
 139                                  ((s)->sy_symbol.ost_entry.n_scnum == C_UNDEF_SECTION && \
 140                                   (s)->sy_symbol.ost_entry.n_value > 0))
 141 /* True if a debug special symbol entry */
 142 #define S_IS_DEBUG(s)           ((s)->sy_symbol.ost_entry.n_scnum == C_DEBUG_SECTION)
 143 /* True if a symbol is local symbol name */
 144 /* A symbol name whose name begin with ^A is a gas internal pseudo symbol */
 145 #define S_IS_LOCAL(s)           (S_GET_NAME(s)[0] == '\001' || \
 146                                  (S_LOCAL_NAME(s) && !flagseen['L']))
 147 /* True if a symbol is not defined in this file */
 148 #define S_IS_EXTERN(s)          ((s)->sy_symbol.ost_entry.n_scnum == 0 && (s)->sy_symbol.ost_entry.n_value == 0)
 149 /*
 150  * True if a symbol can be multiply defined (bss symbols have this def
 151  * though it is bad practice)
 152  */
 153 #define S_IS_COMMON(s)          ((s)->sy_symbol.ost_entry.n_scnum == 0 && (s)->sy_symbol.ost_entry.n_value != 0)
 154 /* True if a symbol name is in the string table, i.e. its length is > 8. */
 155 #define S_IS_STRING(s)          (strlen(S_GET_NAME(s)) > 8 ? 1 : 0)
 156
 157 /* Accessors */
 158 /* The name of the symbol */
 159 #define S_GET_NAME(s)           ((char*)(s)->sy_symbol.ost_entry.n_offset)
 160 /* The pointer to the string table */
 161 #define S_GET_OFFSET(s)         ((s)->sy_symbol.ost_entry.n_offset)
 162 /* The zeroes if symbol name is longer than 8 chars */
 163 #define S_GET_ZEROES(s)         ((s)->sy_symbol.ost_entry.n_zeroes)
 164 /* The value of the symbol */
 165 #define S_GET_VALUE(s)          ((s)->sy_symbol.ost_entry.n_value)
 166 /* The numeric value of the segment */
 167 #define S_GET_SEGMENT(s)        (N_TYPE_seg[(s)->sy_symbol.ost_entry.n_scnum+4])
 168 /* The data type */
 169 #define S_GET_DATA_TYPE(s)      ((s)->sy_symbol.ost_entry.n_type)
 170 /* The storage class */
 171 #define S_GET_STORAGE_CLASS(s)  ((s)->sy_symbol.ost_entry.n_sclass)
 172 /* The number of auxiliary entries */
 173 #define S_GET_NUMBER_AUXILIARY(s)       ((s)->sy_symbol.ost_entry.n_numaux)
 174
 175 /* Modifiers */
 176 /* Set the name of the symbol */
 177 #define S_SET_NAME(s,v)         ((s)->sy_symbol.ost_entry.n_offset = (unsigned long)(v))
 178 /* Set the offset of the symbol */
 179 #define S_SET_OFFSET(s,v)       ((s)->sy_symbol.ost_entry.n_offset = (v))
 180 /* The zeroes if symbol name is longer than 8 chars */
 181 #define S_SET_ZEROES(s,v)               ((s)->sy_symbol.ost_entry.n_zeroes = (v))
 182 /* Set the value of the symbol */
 183 #define S_SET_VALUE(s,v)        ((s)->sy_symbol.ost_entry.n_value = (v))
 184 /* The numeric value of the segment */
 185 #define S_SET_SEGMENT(s,v)      ((s)->sy_symbol.ost_entry.n_scnum = SEGMENT_TO_SYMBOL_TYPE(v))
 186 /* The data type */
 187 #define S_SET_DATA_TYPE(s,v)    ((s)->sy_symbol.ost_entry.n_type = (v))
 188 /* The storage class */
 189 #define S_SET_STORAGE_CLASS(s,v)        ((s)->sy_symbol.ost_entry.n_sclass = (v))
 190 /* The number of auxiliary entries */
 191 #define S_SET_NUMBER_AUXILIARY(s,v)     ((s)->sy_symbol.ost_entry.n_numaux = (v))
 192
 193 /* Additional modifiers */
 194 /* The symbol is external (does not mean undefined) */
 195 #define S_SET_EXTERNAL(s)       { S_SET_STORAGE_CLASS(s, C_EXT) ; SF_CLEAR_LOCAL(s); }
 196
 197 /* Auxiliary entry macros. SA_ stands for symbol auxiliary */
 198 /* Omit the tv related fields */
 199 /* Accessors */
 200 #define SA_GET_SYM_TAGNDX(s)    ((s)->sy_symbol.ost_auxent[0].x_sym.x_tagndx)
 201 #define SA_GET_SYM_LNNO(s)      ((s)->sy_symbol.ost_auxent[0].x_sym.x_misc.x_lnsz.x_lnno)
 202 #define SA_GET_SYM_SIZE(s)      ((s)->sy_symbol.ost_auxent[0].x_sym.x_misc.x_lnsz.x_size)
 203 #define SA_GET_SYM_FSIZE(s)     ((s)->sy_symbol.ost_auxent[0].x_sym.x_misc.x_fsize)
 204 #define SA_GET_SYM_LNNOPTR(s)   ((s)->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_fcn.x_lnnoptr)
 205 #define SA_GET_SYM_ENDNDX(s)    ((s)->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_fcn.x_endndx)
 206 #define SA_GET_SYM_DIMEN(s,i)   ((s)->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_ary.x_dimen[(i)])
 207 #define SA_GET_FILE_FNAME(s)    ((s)->sy_symbol.ost_auxent[0].x_file.x_fname)
 208 #define SA_GET_SCN_SCNLEN(s)    ((s)->sy_symbol.ost_auxent[0].x_scn.x_scnlen)
 209 #define SA_GET_SCN_NRELOC(s)    ((s)->sy_symbol.ost_auxent[0].x_scn.x_nreloc)
 210 #define SA_GET_SCN_NLINNO(s)    ((s)->sy_symbol.ost_auxent[0].x_scn.x_nlinno)
 211
 212 /* Modifiers */
 213 #define SA_SET_SYM_TAGNDX(s,v)  ((s)->sy_symbol.ost_auxent[0].x_sym.x_tagndx=(v))
 214 #define SA_SET_SYM_LNNO(s,v)    ((s)->sy_symbol.ost_auxent[0].x_sym.x_misc.x_lnsz.x_lnno=(v))
 215 #define SA_SET_SYM_SIZE(s,v)    ((s)->sy_symbol.ost_auxent[0].x_sym.x_misc.x_lnsz.x_size=(v))
 216 #define SA_SET_SYM_FSIZE(s,v)   ((s)->sy_symbol.ost_auxent[0].x_sym.x_misc.x_fsize=(v))
 217 #define SA_SET_SYM_LNNOPTR(s,v) ((s)->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_fcn.x_lnnoptr=(v))
 218 #define SA_SET_SYM_ENDNDX(s,v)  ((s)->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_fcn.x_endndx=(v))
 219 #define SA_SET_SYM_DIMEN(s,i,v) ((s)->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_ary.x_dimen[(i)]=(v))
 220 #define SA_SET_FILE_FNAME(s,v)  strncpy((s)->sy_symbol.ost_auxent[0].x_file.x_fname,(v),FILNMLEN)
 221 #define SA_SET_SCN_SCNLEN(s,v)  ((s)->sy_symbol.ost_auxent[0].x_scn.x_scnlen=(v))
 222 #define SA_SET_SCN_NRELOC(s,v)  ((s)->sy_symbol.ost_auxent[0].x_scn.x_nreloc=(v))
 223 #define SA_SET_SCN_NLINNO(s,v)  ((s)->sy_symbol.ost_auxent[0].x_scn.x_nlinno=(v))
 224
 225 /*
 226  * Internal use only definitions. SF_ stands for symbol flags.
 227  *
 228  * These values can be assigned to sy_symbol.ost_flags field of a symbolS.
 229  *
 230  * You'll break i960 if you shift the SYSPROC bits anywhere else.  for
 231  * more on the balname/callname hack, see tc-i960.h.  b.out is done
 232  * differently.
 233  */
 234
 235 #define SF_I960_MASK    (0x000001ff) /* Bits 0-8 are used by the i960 port. */
 236 #define SF_SYSPROC      (0x0000003f)         /* bits 0-5 are used to store the sysproc number */
 237 #define SF_IS_SYSPROC   (0x00000040)         /* bit 6 marks symbols that are sysprocs */
 238 #define SF_BALNAME      (0x00000080)         /* bit 7 marks BALNAME symbols */
 239 #define SF_CALLNAME     (0x00000100)         /* bit 8 marks CALLNAME symbols */
 240
 241 #define SF_NORMAL_MASK  (0x0000ffff) /* bits 12-15 are general purpose. */
 242
 243 #define SF_STATICS      (0x00001000)         /* Mark the .text & all symbols */
 244 #define SF_DEFINED      (0x00002000)         /* Symbol is defined in this file */
 245 #define SF_STRING       (0x00004000)         /* Symbol name length > 8 */
 246 #define SF_LOCAL        (0x00008000)         /* Symbol must not be emitted */
 247
 248 #define SF_DEBUG_MASK   (0xffff0000) /* bits 16-31 are debug info */
 249
 250 #define SF_FUNCTION     (0x00010000)         /* The symbol is a function */
 251 #define SF_PROCESS      (0x00020000)         /* Process symbol before write */
 252 #define SF_TAGGED       (0x00040000)         /* Is associated with a tag */
 253 #define SF_TAG          (0x00080000)         /* Is a tag */
 254 #define SF_DEBUG        (0x00100000)         /* Is in debug or abs section */
 255 #define SF_GET_SEGMENT  (0x00200000)         /* Get the section of the forward symbol. */
 256  /* All other bits are unused. */
 257
 258 /* Accessors */
 259 #define SF_GET(s)               ((s)->sy_symbol.ost_flags)
 260 #define SF_GET_NORMAL_FIELD(s)  ((s)->sy_symbol.ost_flags & SF_NORMAL_MASK)
 261 #define SF_GET_DEBUG_FIELD(s)   ((s)->sy_symbol.ost_flags & SF_DEBUG_MASK)
 262 #define SF_GET_FILE(s)          ((s)->sy_symbol.ost_flags & SF_FILE)
 263 #define SF_GET_STATICS(s)       ((s)->sy_symbol.ost_flags & SF_STATICS)
 264 #define SF_GET_DEFINED(s)       ((s)->sy_symbol.ost_flags & SF_DEFINED)
 265 #define SF_GET_STRING(s)        ((s)->sy_symbol.ost_flags & SF_STRING)
 266 #define SF_GET_LOCAL(s)         ((s)->sy_symbol.ost_flags & SF_LOCAL)
 267 #define SF_GET_FUNCTION(s)      ((s)->sy_symbol.ost_flags & SF_FUNCTION)
 268 #define SF_GET_PROCESS(s)       ((s)->sy_symbol.ost_flags & SF_PROCESS)
 269 #define SF_GET_DEBUG(s)         ((s)->sy_symbol.ost_flags & SF_DEBUG)
 270 #define SF_GET_TAGGED(s)        ((s)->sy_symbol.ost_flags & SF_TAGGED)
 271 #define SF_GET_TAG(s)           ((s)->sy_symbol.ost_flags & SF_TAG)
 272 #define SF_GET_GET_SEGMENT(s)   ((s)->sy_symbol.ost_flags & SF_GET_SEGMENT)
 273 #define SF_GET_I960(s)          ((s)->sy_symbol.ost_flags & SF_I960_MASK) /* used by i960 */
 274 #define SF_GET_BALNAME(s)       ((s)->sy_symbol.ost_flags & SF_BALNAME) /* used by i960 */
 275 #define SF_GET_CALLNAME(s)      ((s)->sy_symbol.ost_flags & SF_CALLNAME) /* used by i960 */
 276 #define SF_GET_IS_SYSPROC(s)    ((s)->sy_symbol.ost_flags & SF_IS_SYSPROC) /* used by i960 */
 277 #define SF_GET_SYSPROC(s)       ((s)->sy_symbol.ost_flags & SF_SYSPROC) /* used by i960 */
 278
 279 /* Modifiers */
 280 #define SF_SET(s,v)             ((s)->sy_symbol.ost_flags = (v))
 281 #define SF_SET_NORMAL_FIELD(s,v)((s)->sy_symbol.ost_flags |= ((v) & SF_NORMAL_MASK))
 282 #define SF_SET_DEBUG_FIELD(s,v) ((s)->sy_symbol.ost_flags |= ((v) & SF_DEBUG_MASK))
 283 #define SF_SET_FILE(s)          ((s)->sy_symbol.ost_flags |= SF_FILE)
 284 #define SF_SET_STATICS(s)       ((s)->sy_symbol.ost_flags |= SF_STATICS)
 285 #define SF_SET_DEFINED(s)       ((s)->sy_symbol.ost_flags |= SF_DEFINED)
 286 #define SF_SET_STRING(s)        ((s)->sy_symbol.ost_flags |= SF_STRING)
 287 #define SF_SET_LOCAL(s)         ((s)->sy_symbol.ost_flags |= SF_LOCAL)
 288 #define SF_CLEAR_LOCAL(s)       ((s)->sy_symbol.ost_flags &= ~SF_LOCAL)
 289 #define SF_SET_FUNCTION(s)      ((s)->sy_symbol.ost_flags |= SF_FUNCTION)
 290 #define SF_SET_PROCESS(s)       ((s)->sy_symbol.ost_flags |= SF_PROCESS)
 291 #define SF_SET_DEBUG(s)         ((s)->sy_symbol.ost_flags |= SF_DEBUG)
 292 #define SF_SET_TAGGED(s)        ((s)->sy_symbol.ost_flags |= SF_TAGGED)
 293 #define SF_SET_TAG(s)           ((s)->sy_symbol.ost_flags |= SF_TAG)
 294 #define SF_SET_GET_SEGMENT(s)   ((s)->sy_symbol.ost_flags |= SF_GET_SEGMENT)
 295 #define SF_SET_I960(s,v)        ((s)->sy_symbol.ost_flags |= ((v) & SF_I960_MASK)) /* used by i960 */
 296 #define SF_SET_BALNAME(s)       ((s)->sy_symbol.ost_flags |= SF_BALNAME) /* used by i960 */
 297 #define SF_SET_CALLNAME(s)      ((s)->sy_symbol.ost_flags |= SF_CALLNAME) /* used by i960 */
 298 #define SF_SET_IS_SYSPROC(s)    ((s)->sy_symbol.ost_flags |= SF_IS_SYSPROC) /* used by i960 */
 299 #define SF_SET_SYSPROC(s,v)     ((s)->sy_symbol.ost_flags |= ((v) & SF_SYSPROC)) /* used by i960 */
 300
 301 /* File header macro and type definition */
 302
 303 /*
 304  * File position calculators. Beware to use them when all the
 305  * appropriate fields are set in the header.
 306  */
 307
 308 #ifdef OBJ_COFF_OMIT_OPTIONAL_HEADER
 309 #define OBJ_COFF_AOUTHDRSZ (0)
 310 #else
 311 #define OBJ_COFF_AOUTHDRSZ (AOUTHDRSZ)
 312 #endif /* OBJ_COFF_OMIT_OPTIONAL_HEADER */
 313
 314 #define H_GET_FILE_SIZE(h) \
 315     (long)(FILHSZ + OBJ_COFF_AOUTHDRSZ + \
 316            H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
 317            H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h) + \
 318            H_GET_RELOCATION_SIZE(h) + H_GET_LINENO_SIZE(h) + \
 319            H_GET_SYMBOL_TABLE_SIZE(h) * SYMESZ + \
 320            (h)->string_table_size)
 321 #define H_GET_TEXT_FILE_OFFSET(h) \
 322     (long)(FILHSZ + OBJ_COFF_AOUTHDRSZ + \
 323            H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ)
 324 #define H_GET_DATA_FILE_OFFSET(h) \
 325     (long)(FILHSZ + OBJ_COFF_AOUTHDRSZ + \
 326            H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
 327            H_GET_TEXT_SIZE(h))
 328 #define H_GET_BSS_FILE_OFFSET(h) 0
 329 #define H_GET_RELOCATION_FILE_OFFSET(h) \
 330     (long)(FILHSZ + OBJ_COFF_AOUTHDRSZ + \
 331            H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
 332            H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h))
 333 #define H_GET_LINENO_FILE_OFFSET(h) \
 334     (long)(FILHSZ + OBJ_COFF_AOUTHDRSZ + \
 335            H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
 336            H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h) + \
 337            H_GET_RELOCATION_SIZE(h))
 338 #define H_GET_SYMBOL_TABLE_FILE_OFFSET(h) \
 339     (long)(FILHSZ + OBJ_COFF_AOUTHDRSZ + \
 340            H_GET_NUMBER_OF_SECTIONS(h) * SCNHSZ + \
 341            H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h) + \
 342            H_GET_RELOCATION_SIZE(h) + H_GET_LINENO_SIZE(h))
 343
 344 /* Accessors */
 345 /* aouthdr */
 346 #define H_GET_MAGIC_NUMBER(h)           ((h)->aouthdr.magic)
 347 #define H_GET_VERSION_STAMP(h)          ((h)->aouthdr.vstamp)
 348 #define H_GET_TEXT_SIZE(h)              ((h)->aouthdr.tsize)
 349 #define H_GET_DATA_SIZE(h)              ((h)->aouthdr.dsize)
 350 #define H_GET_BSS_SIZE(h)               ((h)->aouthdr.bsize)
 351 #define H_GET_ENTRY_POINT(h)            ((h)->aouthdr.entry)
 352 #define H_GET_TEXT_START(h)             ((h)->aouthdr.text_start)
 353 #define H_GET_DATA_START(h)             ((h)->aouthdr.data_start)
 354 /* filehdr */
 355 #define H_GET_FILE_MAGIC_NUMBER(h)      ((h)->filehdr.f_magic)
 356 #define H_GET_NUMBER_OF_SECTIONS(h)     ((h)->filehdr.f_nscns)
 357 #define H_GET_TIME_STAMP(h)             ((h)->filehdr.f_timdat)
 358 #define H_GET_SYMBOL_TABLE_POINTER(h)   ((h)->filehdr.f_symptr)
 359 #define H_GET_SYMBOL_TABLE_SIZE(h)      ((h)->filehdr.f_nsyms)
 360 #define H_GET_SIZEOF_OPTIONAL_HEADER(h) ((h)->filehdr.f_opthdr)
 361 #define H_GET_FLAGS(h)                  ((h)->filehdr.f_flags)
 362 /* Extra fields to achieve bsd a.out compatibility and for convenience */
 363 #define H_GET_RELOCATION_SIZE(h)        ((h)->relocation_size)
 364 #define H_GET_STRING_SIZE(h)            ((h)->string_table_size)
 365 #define H_GET_LINENO_SIZE(h)            ((h)->lineno_size)
 366
 367 /* Modifiers */
 368 /* aouthdr */
 369 #define H_SET_MAGIC_NUMBER(h,v)         ((h)->aouthdr.magic = (v))
 370 #define H_SET_VERSION_STAMP(h,v)        ((h)->aouthdr.vstamp = (v))
 371 #define H_SET_TEXT_SIZE(h,v)            ((h)->aouthdr.tsize = (v))
 372 #define H_SET_DATA_SIZE(h,v)            ((h)->aouthdr.dsize = (v))
 373 #define H_SET_BSS_SIZE(h,v)             ((h)->aouthdr.bsize = (v))
 374 #define H_SET_ENTRY_POINT(h,v)          ((h)->aouthdr.entry = (v))
 375 #define H_SET_TEXT_START(h,v)           ((h)->aouthdr.text_start = (v))
 376 #define H_SET_DATA_START(h,v)           ((h)->aouthdr.data_start = (v))
 377 /* filehdr */
 378 #define H_SET_FILE_MAGIC_NUMBER(h,v)    ((h)->filehdr.f_magic = (v))
 379 #define H_SET_NUMBER_OF_SECTIONS(h,v)   ((h)->filehdr.f_nscns = (v))
 380 #define H_SET_TIME_STAMP(h,v)           ((h)->filehdr.f_timdat = (v))
 381 #define H_SET_SYMBOL_TABLE_POINTER(h,v) ((h)->filehdr.f_symptr = (v))
 382 #define H_SET_SYMBOL_TABLE_SIZE(h,v)    ((h)->filehdr.f_nsyms = (v))
 383 #define H_SET_SIZEOF_OPTIONAL_HEADER(h,v) ((h)->filehdr.f_opthdr = (v))
 384 #define H_SET_FLAGS(h,v)                ((h)->filehdr.f_flags = (v))
 385 /* Extra fields to achieve bsd a.out compatibility and for convinience */
 386 #define H_SET_RELOCATION_SIZE(h,t,d)    ((h)->relocation_size = (t)+(d))
 387 #define H_SET_STRING_SIZE(h,v)          ((h)->string_table_size = (v))
 388 #define H_SET_LINENO_SIZE(h,v)          ((h)->lineno_size = (v))
 389
 390  /* Segment flipping */
 391 #define segment_name(v) (seg_name[(int) (v)])
 392
 393 typedef struct {
 394     AOUTHDR        aouthdr;             /* a.out header */
 395     FILHDR         filehdr;             /* File header, not machine dep. */
 396     long       string_table_size;   /* names + '\0' + sizeof(int) */
 397     long           relocation_size;     /* Cumulated size of relocation
 398                                            information for all sections in
 399                                            bytes. */
 400     long           lineno_size;         /* Size of the line number information
 401                                            table in bytes */
 402 } object_headers;
 403
 404 /* --------------  Line number handling ------- */
 405 extern int              text_lineno_number;
 406
 407 /* line numbering stuff. */
 408
 409 typedef struct internal_lineno {
 410     LINENO line;                        /* The lineno structure itself */
 411     char* frag;                         /* Frag to which the line number is related */
 412     struct internal_lineno* next;       /* Forward chain pointer */
 413 } lineno;
 414
 415 extern lineno *lineno_lastP;
 416 extern lineno *lineno_rootP;
 417 #define OBJ_EMIT_LINENO(a, b, c)        obj_emit_lineno((a),(b),(c))
 418
 419 #ifdef __STDC__
 420 void obj_emit_lineno(char **where, lineno *line, char *file_start);
 421 #else /* __STDC__ */
 422 void obj_emit_lineno();
 423 #endif /* __STDC__ */
 424
 425  /* stack stuff */
 426 typedef struct {
 427     unsigned long chunk_size;
 428     unsigned long element_size;
 429     unsigned long size;
 430     char*         data;
 431     unsigned long pointer;
 432 } stack;
 433
 434 #ifdef __STDC__
 435
 436 char *stack_pop(stack *st);
 437 char *stack_push(stack *st, char *element);
 438 char *stack_top(stack *st);
 439 stack *stack_init(unsigned long chunk_size, unsigned long element_size);
 440 void c_dot_file_symbol(char *filename);
 441 void obj_extra_stuff(object_headers *headers);
 442 void stack_delete(stack *st);
 443
 444 #ifndef tc_headers_hook
 445 void tc_headers_hook(object_headers *headers);
 446 #endif /* tc_headers_hook */
 447
 448 #ifndef tc_coff_symbol_emit_hook
 449 void tc_coff_symbol_emit_hook(); /* really tc_coff_symbol_emit_hook(symbolS *symbolP) */
 450 #endif /* tc_coff_symbol_emit_hook */
 451
 452 void c_section_header(SCNHDR *header,
 453                       char *name,
 454                       long core_address,
 455                       long size,
 456                       long data_ptr,
 457                       long reloc_ptr,
 458                       long lineno_ptr,
 459                       long reloc_number,
 460                       long lineno_number,
 461                       long alignment);
 462
 463 #else /* __STDC__ */
 464
 465 char *stack_pop();
 466 char *stack_push();
 467 char *stack_top();
 468 stack *stack_init();
 469 void c_dot_file_symbol();
 470 void c_section_header();
 471 void obj_extra_stuff();
 472 void stack_delete();
 473 void tc_headers_hook();
 474 void tc_coff_symbol_emit_hook();
 475
 476 #endif /* __STDC__ */
 477
 478
 479  /* sanity check */
 480
 481 #ifdef TC_I960
 482 #ifndef C_LEAFSTAT
 483 hey!  Where is the C_LEAFSTAT definition?  i960-coff support is depending on it.
 484 #endif /* no C_LEAFSTAT */
 485 #endif /* TC_I960 */
 486
 487 /*
 488  * Local Variables:
 489  * comment-column: 0
 490  * fill-column: 131
 491  * End:
 492  */
 493
 494 /* end of obj-coff.h */