gas/config/coff.gnu.h

   1 /*** coff information for 80960.  Origins: Intel, AMD, etc., natch. */
   2
   3 /*
   4  * At this point I'm sure this file is right for i960 and I'm pretty sure it's
   5  * right for a29k, although it hasn't been tested rigorously.  Please feel free
   6  * to add your own machine's description here.  Without that info, it isn't
   7  * possible to build cross development tools from elsewhere nor is it easy to
   8  * continue to support your machines format.
   9  *
  10  * The TC_foo ifdef's are mine.  They are what gas uses.  The other ifdef's
  11  * remain for documentation from other scavenged files.   xoxorich.
  12  */
  13
  14 /* $Id$ */
  15
  16 /********************** FILE HEADER **********************/
  17
  18 struct filehdr {
  19         unsigned short  f_magic;        /* magic number                 */
  20         unsigned short  f_nscns;        /* number of sections           */
  21         long            f_timdat;       /* time & date stamp            */
  22         long            f_symptr;       /* file pointer to symtab       */
  23         long            f_nsyms;        /* number of symtab entries     */
  24         unsigned short  f_opthdr;       /* sizeof(optional hdr)         */
  25         unsigned short  f_flags;        /* flags                        */
  26 };
  27
  28 /* Bits for f_flags:
  29  *      F_RELFLG        relocation info stripped from file
  30  *      F_EXEC          file is executable (no unresolved externel references)
  31  *      F_LNNO          line nunbers stripped from file
  32  *      F_LSYMS         local symbols stripped from file
  33  *      F_AR32WR        file has byte ordering of an AR32WR machine (e.g. vax)
  34  */
  35 #define F_RELFLG        (0x0001)
  36 #define F_EXEC          (0x0002)
  37 #define F_LNNO          (0x0004)
  38 #define F_LSYMS         (0x0008)
  39
  40 #ifdef TC_I960
  41 #define F_AR32WR        (0x0010) /* File has 32 bits per word, least
  42                                     significant byte first. */
  43 #else /* TC_I960 */
  44 #define F_AR32WR        (0x0100)
  45 #endif /* TC_I960 */
  46
  47 #define F_MINMAL        (0x0010) /* ??? */
  48 #define F_UPDATE        (0x0020) /* ??? */
  49 #define F_SWABD         (0x0040) /* ??? */
  50 #define F_AR16WR        (0x0080) /* File has the byte ordering used by
  51                                     the PDP*-11/70 processor. */
  52 #define F_AR32W         (0x0200) /* File has 32 bits per word, most
  53                                     significant byte first. */
  54
  55 /*
  56  *      Intel 80960 (I960) processor flags.
  57  *      F_I960TYPE == mask for processor type field.
  58  */
  59
  60 #define F_I960TYPE      (0xf000)
  61 #define F_I960CORE      (0x1000)
  62 #define F_I960KB        (0x2000)
  63 #define F_I960SB        (0x2000)
  64 #define F_I960MC        (0x3000)
  65 #define F_I960XA        (0x4000)
  66 #define F_I960CA        (0x5000)
  67 #define F_I960KA        (0x6000)
  68 #define F_I960SA        (0x6000)
  69
  70 /*
  71  * i80960 Magic Numbers
  72  */
  73
  74 #define I960ROMAGIC     (0x160) /* read-only text segments */
  75 #define I960RWMAGIC     (0x161) /* read-write text segments */
  76
  77 #define I960BADMAG(x) (((x).f_magic != I960ROMAGIC) && ((x).f_magic != I960RWMAGIC))
  78
  79 #define SIPFBOMAGIC     (0x17a) /* Am29000 (Byte 0 is MSB - Big Endian) */
  80 #define SIPRBOMAGIC     (0x17b) /* Am29000 (Byte 0 is LSB - Little Endian) */
  81
  82 #define A29KBADMAG(x)   (((x).f_magic != SIPFBOMAGIC) && ((x).f_magic != SIPRBOMAGIC))
  83
  84 #define FILHDR  struct filehdr
  85 #define FILHSZ  sizeof(FILHDR)
  86
  87
  88 /********************** AOUT "OPTIONAL HEADER" **********************/
  89
  90 typedef struct {
  91         unsigned long   phys_addr;
  92         unsigned long   bitarray;
  93 } TAGBITS;
  94
  95 /*  These appear to be used only by exec(2).  I don't know who cares
  96     about them in a cross development environment.  In any case, this
  97     is my collection after researching the issue for a few hours.
  98     Apparently, most have these have remained essentially unchanged
  99     since v7 days, although a few new ones have been added.  xoxorich. */
 100
 101 #define BAD0MAGIC       (0401) /* (?) "lpd (UNIX/RT)" */
 102 #define BAD1MAGIC       (0405) /* (?) overlay */
 103 #define OMAGIC          (0407) /* old impure format. data immediately
 104                                   follows text. both sections are rw. */
 105 #define NMAGIC          (0410) /* split i&d, read-only text */
 106 #define A_MAGIC3        (0411) /* (?) "separated I&D" */
 107 #define ZMAGIC          (0413) /* like NMAGIC, but demand loaded */
 108 #define PAGEMAGIC2      (0414) /* (?) like ZMAGIC, but address zero
 109                                   explicitly unmapped. */
 110 #define REGMAGIC        (0414) /* (?) a PAGEMAGIC2 alias? */
 111 #define PAGEMAGIC3      (0415) /* (?) like ZMAGIC, but address zero mapped. */
 112 #define A_MAGIC5        (0437) /* (?) "system overlay, separated I&D" */
 113  /* intended for non-unix cross development */
 114 #define SASMAGIC        (010000) /* Single Address Space */
 115 #define MASMAGIC        (020000) /* (?) "Multiple (separate I & D) Address Spaces" */
 116
 117 typedef struct aouthdr {
 118         short           magic;  /* type of file                         */
 119         short           vstamp; /* version stamp                        */
 120         unsigned long   tsize;  /* text size in bytes, padded to FW bdry*/
 121         unsigned long   dsize;  /* initialized data "  "                */
 122         unsigned long   bsize;  /* uninitialized data "   "             */
 123 #if U3B
 124         unsigned long   dum1;
 125         unsigned long   dum2;   /* pad to entry point   */
 126 #endif
 127         unsigned long   entry;  /* entry pt.                            */
 128         unsigned long   text_start;     /* base of text used for this file */
 129         unsigned long   data_start;     /* base of data used for this file */
 130  /* CAREFUL: some formats omit the tagentries member. */
 131         unsigned long   tagentries;     /* number of tag entries to
 132                                            follow (always zero for i960) */
 133 } AOUTHDR;
 134
 135 /* return a pointer to the tag bits array */
 136
 137 #define TAGPTR(aout) ((TAGBITS *) (&(aout.tagentries)+1))
 138
 139 /* compute size of a header */
 140
 141 /*#define AOUTSZ(aout) (sizeof(AOUTHDR)+(aout.tagentries*sizeof(TAGBITS)))*/
 142 #define AOUTSZ (sizeof(AOUTHDR))
 143
 144
 145 /********************** STORAGE CLASSES **********************/
 146
 147 #define C_EFCN          -1      /* physical end of function */
 148 #define C_NULL          0
 149 #define C_AUTO          1       /* automatic variable */
 150 #define C_EXT           2       /* external symbol */
 151 #define C_STAT          3       /* static */
 152 #define C_REG           4       /* register variable */
 153 #define C_EXTDEF        5       /* external definition */
 154 #define C_LABEL         6       /* label */
 155 #define C_ULABEL        7       /* undefined label */
 156 #define C_MOS           8       /* member of structure */
 157 #define C_ARG           9       /* function argument */
 158 #define C_STRTAG        10      /* structure tag */
 159 #define C_MOU           11      /* member of union */
 160 #define C_UNTAG         12      /* union tag */
 161 #define C_TPDEF         13      /* type definition */
 162 #define C_USTATIC       14      /* undefined static */
 163 #define C_ENTAG         15      /* enumeration tag */
 164 #define C_MOE           16      /* member of enumeration */
 165 #define C_REGPARM       17      /* register parameter */
 166 #define C_FIELD         18      /* bit field */
 167
 168 #ifdef TC_I960
 169 #define C_AUTOARG       19      /* auto argument */
 170 #define C_LASTENT       20      /* dummy entry (end of block) */
 171 #endif /* TC_I960 */
 172
 173 #ifdef TC_A29K
 174 #define C_GLBLREG       19              /* global register */
 175 #define C_EXTREG        20              /* external global register */
 176 #define C_DEFREG        21              /* ext. def. of global register */
 177 #define C_STARTOF       22              /* as29 $SIZEOF and $STARTOF symbols */
 178 #endif /* TC_A29K */
 179
 180 #define C_BLOCK         100     /* ".bb" or ".eb" */
 181 #define C_FCN           101     /* ".bf" or ".ef" */
 182 #define C_EOS           102     /* end of structure */
 183 #define C_FILE          103     /* file name */
 184 #define C_LINE          104     /* line # reformatted as symbol table entry */
 185 #define C_ALIAS         105     /* duplicate tag */
 186 #define C_HIDDEN        106     /* ext symbol in dmert public lib. like static,
 187                                    used to avoid name conflicts. */
 188
 189 #ifdef TC_I960
 190         /* New storage classes for 80960 */
 191 #define C_SCALL         107     /* Procedure reachable via system call  */
 192  /* C_LEAFPROC is obsolete.  Use C_LEAFEXT or C_LEAFSTAT */
 193 #define C_LEAFPROC      108     /* Leaf procedure, "call" via BAL */
 194 #define C_LEAFEXT       108
 195 #define C_OPTVAR        109     /* Optimized variable */
 196 #define C_DEFINE        110     /* Preprocessor #define */
 197 #define C_PRAGMA        111     /* Advice to compiler or linker */
 198 #define C_SEGMENT       112     /* 80960 segment name */
 199 #define C_LEAFSTAT      113     /* Static leaf */
 200 #endif /* TC_I960 */
 201
 202 #ifdef TC_A29K
 203 #define C_SHADOW        107 /* shadow symbol */
 204 #endif /* TC_A29K */
 205
 206 /********************** SECTION HEADER **********************/
 207
 208 struct scnhdr {
 209         char            s_name[8];      /* section name */
 210         long            s_paddr;        /* physical address, aliased s_nlib */
 211         long            s_vaddr;        /* virtual address */
 212         long            s_size;         /* section size */
 213         long            s_scnptr;       /* file ptr to raw data for section */
 214         long            s_relptr;       /* file ptr to relocation */
 215         long            s_lnnoptr;      /* file ptr to line numbers */
 216         unsigned short  s_nreloc;       /* number of relocation entries */
 217         unsigned short  s_nlnno;        /* number of line number entries */
 218         long            s_flags;        /* flags */
 219
 220 #ifdef TC_I960
 221         unsigned long   s_align;        /* section alignment */
 222 #endif /* TC_I960 */
 223 };
 224
 225 #define SCNHDR  struct scnhdr
 226 #define SCNHSZ  sizeof(SCNHDR)
 227
 228 /*
 229  * names of "special" sections
 230  */
 231 #define _TEXT   ".text"
 232 #define _DATA   ".data"
 233 #define _BSS    ".bss"
 234
 235 /*
 236  * s_flags "type"
 237  */
 238
 239 /*
 240  * In instances where it is necessary for a linker to
 241  * produce an output file which contains text or data not
 242  * based at virtual address 0, e.g. for a ROM, then the
 243  * linker should accept address base information as command
 244  * input and use PAD sections to skip over unused addresses.
 245  * (at least for a29k.  Maybe others.)
 246  */
 247
 248 #define STYP_REG         (0x0000) /* "regular" section: allocated, relocated, loaded */
 249 #define STYP_DSECT       (0x0001) /* "dummy" section: not allocated, relocated, not loaded */
 250 #define STYP_NOLOAD      (0x0002) /* "noload" section: allocated, relocated, not loaded */
 251 #define STYP_GROUP       (0x0004) /* "grouped" section: formed of input sections */
 252 #define STYP_PAD         (0x0008) /* "padding" section: not allocated, not relocated, loaded */
 253 #define STYP_COPY        (0x0010) /* "copy" section: for decision function used by field update;  not allocated, not relocated,
 254                                      loaded; reloc & lineno entries processed normally */
 255 #define STYP_TEXT        (0x0020) /* section contains text only */
 256 #define S_SHRSEG         (0x0020) /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile
 257                                      will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will
 258                                      update all process invocations. */
 259 #define STYP_DATA        (0x0040) /* section contains data only */
 260 #define STYP_BSS         (0x0080) /* section contains bss only */
 261 #define S_NEWFCN         (0x0100) /* In a minimal file or an update file, a new function (as compared with a replaced function) */
 262 #define STYP_INFO        (0x0200) /* comment section : not allocated not relocated, not loaded */
 263 #define STYP_OVER        (0x0400) /* overlay section : relocated not allocated or loaded */
 264 #define STYP_LIB         (0x0800) /* for .lib section : same as INFO */
 265 #define STYP_MERGE       (0x2000) /* merge section -- combines with text, data or bss sections only */
 266 #define STYP_REVERSE_PAD (0x4000) /* section will be padded with no-op instructions wherever padding is necessary and there is a
 267                                      word of contiguous bytes beginning on a word boundary. */
 268
 269 #ifdef TC_A29K
 270 /* NOTE:  The use of STYP_BSSREG for relocation is not yet defined. */
 271 #define STYP_BSSREG     0x1200  /* Global register area (like STYP_INFO) */
 272 #define STYP_ENVIR      0x2200  /* Environment (like STYP_INFO) */
 273 #define STYP_ABS        0x4000  /* Absolute (allocated, not reloc, loaded) */
 274 #define STYP_LIT        0x8020  /* Literal data (like STYP_TEXT) */
 275 #endif /* TC_A29K */
 276
 277 /********************** LINE NUMBERS **********************/
 278
 279 /* 1 line number entry for every "breakpointable" source line in a section.
 280  * Line numbers are grouped on a per function basis; first entry in a function
 281  * grouping will have l_lnno = 0 and in place of physical address will be the
 282  * symbol table index of the function name.
 283  */
 284 struct lineno {
 285         union {
 286                 long l_symndx;  /* symbol index of function name, iff l_lnno == 0*/
 287                 long l_paddr;   /* (physical) address of line number */
 288         } l_addr;
 289         unsigned short  l_lnno; /* line number */
 290 #ifdef TC_I960
 291  /* not used on a29k */
 292         char padding[2];        /* force alignment */
 293 #endif /* TC_I960 */
 294 };
 295
 296 #define LINENO  struct lineno
 297 #define LINESZ  sizeof(LINENO)
 298
 299
 300 /********************** SYMBOLS **********************/
 301
 302 #define SYMNMLEN        8       /* # characters in a symbol name        */
 303 #define FILNMLEN        14      /* # characters in a file name          */
 304 #define DIMNUM          4       /* # array dimensions in auxiliary entry */
 305
 306 struct syment {
 307         union {
 308                 char    _n_name[SYMNMLEN];      /* old COFF version     */
 309                 struct {
 310                         long    _n_zeroes;      /* new == 0             */
 311                         long    _n_offset;      /* offset into string table */
 312                 } _n_n;
 313                 char    *_n_nptr[2];    /* allows for overlaying        */
 314         } _n;
 315         long            n_value;        /* value of symbol              */
 316         short           n_scnum;        /* section number               */
 317
 318 #ifdef TC_I960
 319  /* This isn't yet used on the i960.  In some formats this
 320     is two bytes of padding.  In others, it is missing entirely. */
 321         unsigned short  n_flags;        /* copy of flags from filhdr    */
 322 #endif /* TC_I960 */
 323
 324 #ifdef TC_A29K
 325         unsigned short  n_type;         /* type and derived type        */
 326 #else /* TC_A29K */
 327  /* at least i960 uses long */
 328         unsigned long   n_type;         /* type and derived type        */
 329 #endif /* TC_A29K */
 330
 331         char            n_sclass;       /* storage class                */
 332         char            n_numaux;       /* number of aux. entries       */
 333
 334 #ifndef TC_A29K
 335         char            pad2[2];        /* force alignment              */
 336 #endif /* TC_A29K */
 337 };
 338
 339 #define SYMENT  struct syment
 340 #define SYMESZ  sizeof(SYMENT) /* This had better also be sizeof(AUXENT) */
 341
 342 #define n_name          _n._n_name
 343 #define n_ptr           _n._n_nptr[1]
 344 #define n_zeroes        _n._n_n._n_zeroes
 345 #define n_offset        _n._n_n._n_offset
 346
 347 /*
 348  * Relocatable symbols have number of the section in which they are defined,
 349  * or one of the following:
 350  */
 351
 352 #define N_SCNUM ((short) 1-65535) /* section num where symbol defined */
 353 #define N_UNDEF ((short)0)  /* undefined symbol */
 354 #define N_ABS   ((short)-1) /* value of symbol is absolute */
 355 #define N_DEBUG ((short)-2) /* debugging symbol -- symbol value is meaningless */
 356 #define N_TV    ((short)-3) /* indicates symbol needs preload transfer vector */
 357 #define P_TV    ((short)-4) /* indicates symbol needs transfer vector (postload) */
 358
 359 /*
 360  * Type of a symbol, in low 4 bits of the word
 361  */
 362 #define T_NULL          0 /* type not assigned */
 363 #define T_VOID          1 /* function argument (only used by compiler) (but now
 364                              real void). */
 365 #define T_CHAR          2 /* character */
 366 #define T_SHORT         3 /* short integer */
 367 #define T_INT           4 /* integer */
 368 #define T_LONG          5 /* long integer */
 369 #define T_FLOAT         6 /* floating point */
 370 #define T_DOUBLE        7 /* double word */
 371 #define T_STRUCT        8 /* structure */
 372 #define T_UNION         9 /* union */
 373 #define T_ENUM          10 /* enumeration */
 374 #define T_MOE           11 /* member of enumeration */
 375 #define T_UCHAR         12 /* unsigned character */
 376 #define T_USHORT        13 /* unsigned short */
 377 #define T_UINT          14 /* unsigned integer */
 378 #define T_ULONG         15 /* unsigned long */
 379
 380 #ifdef TC_I960
 381 #define T_LNGDBL        16      /* long double */
 382 #endif /* TC_I960 */
 383
 384 /*
 385  * derived types, in n_type
 386  */
 387 #define DT_NON          (0)     /* no derived type */
 388 #define DT_PTR          (1)     /* pointer */
 389 #define DT_FCN          (2)     /* function */
 390 #define DT_ARY          (3)     /* array */
 391
 392 #ifndef TC_I960
 393
 394 #define N_BTMASK        (0x0f)
 395 #define N_TMASK         (0x30)
 396 #define N_BTSHFT        (4)
 397 #define N_TSHIFT        (2)
 398
 399 #else /* TC_I960 */
 400
 401 #define N_BTMASK        (0x1f)
 402 #define N_TMASK         (0x60)
 403 #define N_BTSHFT        (5)
 404 #define N_TSHIFT        (2)
 405
 406 #endif /* TC_I960 */
 407
 408 #define BTYPE(x)        ((x) & N_BTMASK)
 409
 410 #define ISPTR(x)        (((x) & N_TMASK) == (DT_PTR << N_BTSHFT))
 411 #define ISFCN(x)        (((x) & N_TMASK) == (DT_FCN << N_BTSHFT))
 412 #define ISARY(x)        (((x) & N_TMASK) == (DT_ARY << N_BTSHFT))
 413
 414 #define DECREF(x) ((((x)>>N_TSHIFT)&~N_BTMASK)|((x)&N_BTMASK))
 415
 416 union auxent {
 417         struct {
 418                 long x_tagndx;  /* str, un, or enum tag indx */
 419                 union {
 420                         struct {
 421                             unsigned short x_lnno; /* declaration line number */
 422                             unsigned short x_size; /* str/union/array size */
 423                         } x_lnsz;
 424                         long x_fsize;   /* size of function */
 425                 } x_misc;
 426                 union {
 427                         struct {                /* if ISFCN, tag, or .bb */
 428                             long x_lnnoptr;     /* ptr to fcn line # */
 429                             long x_endndx;      /* entry ndx past block end */
 430                         } x_fcn;
 431                         struct {                /* if ISARY, up to 4 dimen. */
 432                             unsigned short x_dimen[DIMNUM];
 433                         } x_ary;
 434                 } x_fcnary;
 435                 unsigned short x_tvndx;         /* tv index */
 436         } x_sym;
 437
 438  /* This was just a struct x_file with x_fname only in a29k.  xoxorich. */
 439         union {
 440                 char x_fname[FILNMLEN];
 441                 struct {
 442                         long x_zeroes;
 443                         long x_offset;
 444                 } x_n;
 445         } x_file;
 446
 447         struct {
 448                 long x_scnlen;                  /* section length */
 449                 unsigned short x_nreloc;        /* # relocation entries */
 450                 unsigned short x_nlinno;        /* # line numbers */
 451         } x_scn;
 452
 453         struct {
 454                 long            x_tvfill;       /* tv fill value */
 455                 unsigned short  x_tvlen;        /* length of .tv */
 456
 457  /* This field was typo'd x_tvrna on a29k. xoxorich. */
 458                 unsigned short  x_tvran[2];     /* tv range */
 459         } x_tv;         /* info about .tv section (in auxent of symbol .tv)) */
 460
 461 #ifdef TC_I960
 462         /******************************************
 463          *  I960-specific *2nd* aux. entry formats
 464          ******************************************/
 465         struct {
 466  /* This is a very old typo that keeps getting propogated. */
 467 #define x_stdindx x_stindx
 468                 long x_stindx;  /* sys. table entry */
 469         } x_sc; /* system call entry */
 470
 471         struct {
 472                 unsigned long x_balntry; /* BAL entry point */
 473         } x_bal; /* BAL-callable function */
 474
 475         struct {
 476                 unsigned long   x_timestamp;            /* time stamp */
 477                 char    x_idstring[20];         /* producer identity string */
 478         } x_ident;                              /* Producer ident info */
 479
 480         char a[sizeof(struct syment)];  /* force auxent/syment sizes to match */
 481 #endif /* TC_I960 */
 482 };
 483
 484 #define AUXENT  union auxent
 485 #define AUXESZ  sizeof(AUXENT) /* This had better also be sizeof(SYMENT) */
 486
 487 #if VAX || I960
 488 #       define _ETEXT   "_etext"
 489 #else
 490 #       define _ETEXT   "etext"
 491 #endif
 492
 493 /********************** RELOCATION DIRECTIVES **********************/
 494
 495 struct reloc {
 496         long r_vaddr;           /* Virtual address of reference */
 497         long r_symndx;          /* Index into symbol table */
 498         unsigned short r_type;  /* Relocation type */
 499 #ifdef TC_I960
 500  /* not used for a29k */
 501         char pad[2];            /* Unused */
 502 #endif /* TC_I960 */
 503 };
 504
 505 #define RELOC struct reloc
 506 #define RELSZ sizeof(RELOC)
 507
 508 #ifdef TC_I960
 509 #define R_RELLONG       (0x11)  /* Direct 32-bit relocation */
 510 #define R_IPRSHORT      (0x18)
 511 #define R_IPRMED        (0x19)  /* 24-bit ip-relative relocation */
 512 #define R_IPRLONG       (0x1a)
 513 #define R_OPTCALL       (0x1b)  /* 32-bit optimizable call (leafproc/sysproc) */
 514 #define R_OPTCALLX      (0x1c)  /* 64-bit optimizable call (leafproc/sysproc) */
 515 #define R_GETSEG        (0x1d)
 516 #define R_GETPA         (0x1e)
 517 #define R_TAGWORD       (0x1f)
 518 #endif /* TC_I960 */
 519
 520 #ifdef TC_A29K
 521 /*
 522  * NOTE: All the "I" forms refer to Am29000 instruction
 523  * formats.  The linker is expected to know how the numeric
 524  * information is split and/or aligned within the
 525  * instruction word(s).  R_BYTE works for instructions, too.
 526  *
 527  * If the parameter to a CONSTH instruction is a relocatable
 528  * type, two relocation records are written.  The first has
 529  * an r_type of R_IHIHALF (33 octal) and a normal r_vaddr
 530  * and r_symndx.  The second relocation record has an r_type
 531  * of R_IHCONST (34 octal), a normal r_vaddr (which is
 532  * redundant), and an r_symndx containing the 32-bit
 533  * constant offset to the relocation instead of the actual
 534  * symbol table index.  This second record is always
 535  * written, even if the constant offset is zero.  The
 536  * constant fields of the instruction are set to zero.
 537  */
 538
 539 #define R_ABS           (0x00) /* reference is absolute */
 540 #define R_IREL          (0x18) /* instruction relative (jmp/call) */
 541 #define R_IABS          (0x19) /* instruction absolute (jmp/call) */
 542 #define R_ILOHALF       (0x1a) /* instruction low half  (const)  */
 543 #define R_IHIHALF       (0x1b) /* instruction high half (consth) part 1 */
 544 #define R_IHCONST       (0x1c) /* instruction high half (consth) part 2
 545                                   constant offset of R_IHIHALF relocation */
 546 #define R_BYTE          (0x1d) /* relocatable byte value */
 547 #define R_HWORD         (0x1e) /* relocatable halfword value */
 548 #define R_WORD          (0x1f) /* relocatable word value */
 549 #define R_IGLBLRC       (0x20) /* instruction global register RC */
 550 #define R_IGLBLRA       (0x21) /* instruction global register RA */
 551 #define R_IGLBLRB       (0x22) /* instruction global register RB */
 552 #endif /* TC_A29K */
 553
 554
 555 #define DEFAULT_DATA_SECTION_ALIGNMENT 4
 556 #define DEFAULT_BSS_SECTION_ALIGNMENT 4
 557 #define DEFAULT_TEXT_SECTION_ALIGNMENT 16
 558 /* For new sections we havn't heard of before */
 559 #define DEFAULT_SECTION_ALIGNMENT 4
 560
 561
 562 /*
 563  * Local Variables:
 564  * comment-column: 0
 565  * End:
 566  */
 567
 568 /* end of coff.gnu.h */