gas/config/coff_gnu.h

   1 /* coff_gnu.h
   2    Copyright (C) 1987, 1992 Free Software Foundation, Inc.
   3
   4    This file is part of GAS, the GNU Assembler.
   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 2, 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 /*
  21  * At this point I'm sure this file is right for i960 and I'm pretty sure it's
  22  * right for a29k, although it hasn't been tested rigorously.  Please feel free
  23  * to add your own machine's description here.  Without that info, it isn't
  24  * possible to build cross development tools from elsewhere nor is it easy to
  25  * continue to support your machines format.
  26  *
  27  * The TC_foo ifdef's are mine.  They are what gas uses.  The other ifdef's
  28  * remain for documentation from other scavenged files.   xoxorich.
  29  */
  30
  31 /********************** FILE HEADER **********************/
  32
  33 struct filehdr {
  34         unsigned short  f_magic;        /* magic number                 */
  35         unsigned short  f_nscns;        /* number of sections           */
  36         long            f_timdat;       /* time & date stamp            */
  37         long            f_symptr;       /* file pointer to symtab       */
  38         long            f_nsyms;        /* number of symtab entries     */
  39         unsigned short  f_opthdr;       /* sizeof(optional hdr)         */
  40         unsigned short  f_flags;        /* flags                        */
  41 };
  42
  43 /* Bits for f_flags:
  44  *      F_RELFLG        relocation info stripped from file
  45  *      F_EXEC          file is executable (no unresolved externel references)
  46  *      F_LNNO          line nunbers stripped from file
  47  *      F_LSYMS         local symbols stripped from file
  48  *      F_AR32WR        file has byte ordering of an AR32WR machine (e.g. vax)
  49  */
  50 #define F_RELFLG        (0x0001)
  51 #define F_EXEC          (0x0002)
  52 #define F_LNNO          (0x0004)
  53 #define F_LSYMS         (0x0008)
  54
  55 #ifdef TC_I960
  56 #define F_AR32WR        (0x0010) /* File has 32 bits per word, least
  57                                     significant byte first. */
  58 #else /* TC_I960 */
  59 #define F_AR32WR        (0x0100)
  60 #endif /* TC_I960 */
  61
  62 #define F_MINMAL        (0x0010) /* ??? */
  63 #define F_UPDATE        (0x0020) /* ??? */
  64 #define F_SWABD         (0x0040) /* ??? */
  65 #define F_AR16WR        (0x0080) /* File has the byte ordering used by
  66                                     the PDP*-11/70 processor. */
  67 #define F_AR32W         (0x0200) /* File has 32 bits per word, most
  68                                     significant byte first. */
  69
  70 /*
  71  *      Intel 80960 (I960) processor flags.
  72  *      F_I960TYPE == mask for processor type field.
  73  */
  74
  75 #define F_I960TYPE      (0xf000)
  76 #define F_I960CORE      (0x1000)
  77 #define F_I960KB        (0x2000)
  78 #define F_I960SB        (0x2000)
  79 #define F_I960MC        (0x3000)
  80 #define F_I960XA        (0x4000)
  81 #define F_I960CA        (0x5000)
  82 #define F_I960KA        (0x6000)
  83 #define F_I960SA        (0x6000)
  84
  85 /*
  86  * i80960 Magic Numbers
  87  */
  88
  89 #define I960ROMAGIC     (0x160) /* read-only text segments */
  90 #define I960RWMAGIC     (0x161) /* read-write text segments */
  91
  92 #define I960BADMAG(x) (((x).f_magic != I960ROMAGIC) && ((x).f_magic != I960RWMAGIC))
  93
  94 #define SIPFBOMAGIC     (0x17a) /* Am29000 (Byte 0 is MSB - Big Endian) */
  95 #define SIPRBOMAGIC     (0x17b) /* Am29000 (Byte 0 is LSB - Little Endian) */
  96
  97 #define A29KBADMAG(x)   (((x).f_magic != SIPFBOMAGIC) && ((x).f_magic != SIPRBOMAGIC))
  98
  99 #ifdef TE_I386AIX
 100 # define I386MAGIC      (0x175) /* Danbury AIX C compiler       */
 101 # define I386SVMAGIC    (0x14c) /* System V C Compiler          */
 102 # define I386BADMAG(x)  (((x).f_magic!=I386MAGIC) && \
 103                          ((x).f_magic!=I386SVMAGIC))
 104 #else /* not TE_I386AIX */
 105 # define I386MAGIC      0x14c
 106 # define I386BADMAG(x) (((x).f_magic!=I386MAGIC))
 107 #endif /* not TE_I386AIX */
 108
 109
 110 #define FILHDR  struct filehdr
 111 #define FILHSZ  sizeof(FILHDR)
 112
 113
 114 /********************** AOUT "OPTIONAL HEADER" **********************/
 115
 116 typedef struct {
 117         unsigned long   phys_addr;
 118         unsigned long   bitarray;
 119 } TAGBITS;
 120
 121 /*  These appear to be used only by exec(2).  I don't know who cares
 122     about them in a cross development environment.  In any case, this
 123     is my collection after researching the issue for a few hours.
 124     Apparently, most have these have remained essentially unchanged
 125     since v7 days, although a few new ones have been added.  xoxorich. */
 126
 127 #define BAD0MAGIC       (0401) /* (?) "lpd (UNIX/RT)" */
 128 #define BAD1MAGIC       (0405) /* (?) overlay */
 129 #define OMAGIC          (0407) /* old impure format. data immediately
 130                                   follows text. both sections are rw. */
 131 #define NMAGIC          (0410) /* split i&d, read-only text */
 132 #define A_MAGIC3        (0411) /* (?) "separated I&D" */
 133 #define ZMAGIC          (0413) /* like NMAGIC, but demand loaded */
 134 #define PAGEMAGIC2      (0414) /* (?) like ZMAGIC, but address zero
 135                                   explicitly unmapped. */
 136 #define REGMAGIC        (0414) /* (?) a PAGEMAGIC2 alias? */
 137 #define PAGEMAGIC3      (0415) /* (?) like ZMAGIC, but address zero mapped. */
 138 #define A_MAGIC5        (0437) /* (?) "system overlay, separated I&D" */
 139 /* intended for non-unix cross development */
 140 #define SASMAGIC        (010000) /* Single Address Space */
 141 #define MASMAGIC        (020000) /* (?) "Multiple (separate I & D) Address Spaces" */
 142
 143 typedef struct aouthdr {
 144         short           magic;  /* type of file                         */
 145         short           vstamp; /* version stamp                        */
 146         unsigned long   tsize;  /* text size in bytes, padded to FW bdry*/
 147         unsigned long   dsize;  /* initialized data "  "                */
 148         unsigned long   bsize;  /* uninitialized data "   "             */
 149 #if U3B
 150         unsigned long   dum1;
 151         unsigned long   dum2;   /* pad to entry point   */
 152 #endif
 153         unsigned long   entry;  /* entry pt.                            */
 154         unsigned long   text_start;     /* base of text used for this file */
 155         unsigned long   data_start;     /* base of data used for this file */
 156         /* CAREFUL: some formats omit the tagentries member. */
 157         unsigned long   tagentries;     /* number of tag entries to
 158                                            follow (always zero for i960) */
 159 } AOUTHDR;
 160
 161 /* return a pointer to the tag bits array */
 162
 163 #define TAGPTR(aout) ((TAGBITS *) (&(aout.tagentries)+1))
 164
 165 /* compute size of a header */
 166
 167 /*#define AOUTSZ(aout) (sizeof(AOUTHDR)+(aout.tagentries*sizeof(TAGBITS)))*/
 168 #define AOUTSZ (sizeof(AOUTHDR))
 169
 170
 171 /********************** STORAGE CLASSES **********************/
 172
 173 #define C_EFCN          -1      /* physical end of function */
 174 #define C_NULL          0
 175 #define C_AUTO          1       /* automatic variable */
 176 #define C_EXT           2       /* external symbol */
 177 #define C_STAT          3       /* static */
 178 #define C_REG           4       /* register variable */
 179 #define C_EXTDEF        5       /* external definition */
 180 #define C_LABEL         6       /* label */
 181 #define C_ULABEL        7       /* undefined label */
 182 #define C_MOS           8       /* member of structure */
 183 #define C_ARG           9       /* function argument */
 184 #define C_STRTAG        10      /* structure tag */
 185 #define C_MOU           11      /* member of union */
 186 #define C_UNTAG         12      /* union tag */
 187 #define C_TPDEF         13      /* type definition */
 188 #define C_USTATIC       14      /* undefined static */
 189 #define C_ENTAG         15      /* enumeration tag */
 190 #define C_MOE           16      /* member of enumeration */
 191 #define C_REGPARM       17      /* register parameter */
 192 #define C_FIELD         18      /* bit field */
 193
 194 #ifdef TC_I960
 195 #define C_AUTOARG       19      /* auto argument */
 196 #define C_LASTENT       20      /* dummy entry (end of block) */
 197 #endif /* TC_I960 */
 198
 199 #ifdef TC_A29K
 200 #define C_GLBLREG       19              /* global register */
 201 #define C_EXTREG        20              /* external global register */
 202 #define C_DEFREG        21              /* ext. def. of global register */
 203 #define C_STARTOF       22              /* as29 $SIZEOF and $STARTOF symbols */
 204 #endif /* TC_A29K */
 205
 206 #define C_BLOCK         100     /* ".bb" or ".eb" */
 207 #define C_FCN           101     /* ".bf" or ".ef" */
 208 #define C_EOS           102     /* end of structure */
 209 #define C_FILE          103     /* file name */
 210 #define C_LINE          104     /* line # reformatted as symbol table entry */
 211 #define C_ALIAS         105     /* duplicate tag */
 212 #define C_HIDDEN        106     /* ext symbol in dmert public lib. like static,
 213                                    used to avoid name conflicts. */
 214
 215 #ifdef TC_I960
 216 /* New storage classes for 80960 */
 217 #define C_SCALL         107     /* Procedure reachable via system call  */
 218 /* C_LEAFPROC is obsolete.  Use C_LEAFEXT or C_LEAFSTAT */
 219 #define C_LEAFPROC      108     /* Leaf procedure, "call" via BAL */
 220 #define C_LEAFEXT       108
 221 #define C_OPTVAR        109     /* Optimized variable */
 222 #define C_DEFINE        110     /* Preprocessor #define */
 223 #define C_PRAGMA        111     /* Advice to compiler or linker */
 224 #define C_SEGMENT       112     /* 80960 segment name */
 225 #define C_LEAFSTAT      113     /* Static leaf */
 226 #endif /* TC_I960 */
 227
 228 #ifdef TC_A29K
 229 #define C_SHADOW        107 /* shadow symbol */
 230 #endif /* TC_A29K */
 231
 232 /********************** SECTION HEADER **********************/
 233
 234 struct scnhdr {
 235         char            s_name[8];      /* section name */
 236         long            s_paddr;        /* physical address, aliased s_nlib */
 237         long            s_vaddr;        /* virtual address */
 238         long            s_size;         /* section size */
 239         long            s_scnptr;       /* file ptr to raw data for section */
 240         long            s_relptr;       /* file ptr to relocation */
 241         long            s_lnnoptr;      /* file ptr to line numbers */
 242         unsigned short  s_nreloc;       /* number of relocation entries */
 243         unsigned short  s_nlnno;        /* number of line number entries */
 244         long            s_flags;        /* flags */
 245
 246 #ifdef TC_I960
 247         unsigned long   s_align;        /* section alignment */
 248 #endif /* TC_I960 */
 249 };
 250
 251 #define SCNHDR  struct scnhdr
 252 #define SCNHSZ  sizeof(SCNHDR)
 253
 254 /*
 255  * names of "special" sections
 256  */
 257 #define _TEXT    ".text"                /* executable code section      */
 258 #define _DATA    ".data"                /* initialized data             */
 259 #define _BSS     ".bss"                 /* un-initialized data          */
 260 #define _DEBUG   ".debug"               /* special section used by dbx  */
 261 #define _COMMENT ".comment"             /* version info                 */
 262 #define _LIB     ".lib"                 /* shared lib info section      */
 263 #define _TV      ".tv"
 264
 265 /*
 266  * s_flags "type"
 267  */
 268
 269 /*
 270  * In instances where it is necessary for a linker to
 271  * produce an output file which contains text or data not
 272  * based at virtual address 0, e.g. for a ROM, then the
 273  * linker should accept address base information as command
 274  * input and use PAD sections to skip over unused addresses.
 275  * (at least for a29k.  Maybe others.)
 276  */
 277
 278 #define STYP_REG         (0x0000) /* "regular" section: allocated, relocated, loaded */
 279 #define STYP_DSECT       (0x0001) /* "dummy" section: not allocated, relocated, not loaded */
 280 #define STYP_NOLOAD      (0x0002) /* "noload" section: allocated, relocated, not loaded */
 281 #define STYP_GROUP       (0x0004) /* "grouped" section: formed of input sections */
 282 #define STYP_PAD         (0x0008) /* "padding" section: not allocated, not relocated, loaded */
 283 #define STYP_COPY        (0x0010) /* "copy" section: for decision function used by field update;  not allocated, not relocated,
 284                                      loaded; reloc & lineno entries processed normally */
 285 #define STYP_TEXT        (0x0020) /* section contains text only */
 286 #define S_SHRSEG         (0x0020) /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile
 287                                      will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will
 288                                      update all process invocations. */
 289 #define STYP_DATA        (0x0040) /* section contains data only */
 290 #define STYP_BSS         (0x0080) /* section contains bss only */
 291 #define S_NEWFCN         (0x0100) /* In a minimal file or an update file, a new function (as compared with a replaced function) */
 292 #define STYP_INFO        (0x0200) /* comment section : not allocated not relocated, not loaded */
 293 #define STYP_OVER        (0x0400) /* overlay section : relocated not allocated or loaded */
 294 #define STYP_LIB         (0x0800) /* for .lib section : same as INFO */
 295 #define STYP_MERGE       (0x2000) /* merge section -- combines with text, data or bss sections only */
 296 #define STYP_REVERSE_PAD (0x4000) /* section will be padded with no-op instructions wherever padding is necessary and there is a
 297                                      word of contiguous bytes beginning on a word boundary. */
 298
 299 #ifdef TC_A29K
 300 /* NOTE:  The use of STYP_BSSREG for relocation is not yet defined. */
 301 #define STYP_BSSREG     0x1200  /* Global register area (like STYP_INFO) */
 302 #define STYP_ENVIR      0x2200  /* Environment (like STYP_INFO) */
 303 #define STYP_ABS        0x4000  /* Absolute (allocated, not reloc, loaded) */
 304 #define STYP_LIT        0x8020  /* Literal data (like STYP_TEXT) */
 305 #endif /* TC_A29K */
 306
 307 /********************** LINE NUMBERS **********************/
 308
 309 /* 1 line number entry for every "breakpointable" source line in a section.
 310  * Line numbers are grouped on a per function basis; first entry in a function
 311  * grouping will have l_lnno = 0 and in place of physical address will be the
 312  * symbol table index of the function name.
 313  */
 314 struct lineno {
 315         union {
 316                 long l_symndx;  /* symbol index of function name, iff l_lnno == 0*/
 317                 long l_paddr;   /* (physical) address of line number */
 318         } l_addr;
 319         unsigned short  l_lnno; /* line number */
 320 #ifdef TC_I960
 321         /* not used on a29k */
 322         char padding[2];        /* force alignment */
 323 #endif /* TC_I960 */
 324 };
 325
 326 #define LINENO  struct lineno
 327 #define LINESZ  sizeof(LINENO)
 328
 329
 330 /********************** SYMBOLS **********************/
 331
 332 #define SYMNMLEN        8       /* # characters in a symbol name */
 333 #define FILNMLEN        14      /* # characters in a file name */
 334 #define DIMNUM          4       /* # array dimensions in auxiliary entry */
 335
 336 struct syment {
 337         union {
 338                 char    _n_name[SYMNMLEN];      /* old COFF version */
 339                 struct {
 340                         long    _n_zeroes;      /* new == 0 */
 341                         long    _n_offset;      /* offset into string table */
 342                 } _n_n;
 343                 char    *_n_nptr[2];    /* allows for overlaying */
 344         } _n;
 345         long            n_value;        /* value of symbol */
 346         short           n_scnum;        /* section number */
 347
 348 #ifdef TC_I960
 349         /* This isn't yet used on the i960.  In some formats this
 350            is two bytes of padding.  In others, it is missing entirely. */
 351         unsigned short  n_flags;        /* copy of flags from filhdr */
 352 #endif /* TC_I960 */
 353
 354 #ifdef TC_A29K
 355         unsigned short  n_type;         /* type and derived type */
 356 #else /* TC_A29K */
 357         /* at least i960 uses long */
 358         unsigned long   n_type;         /* type and derived type */
 359 #endif /* TC_A29K */
 360
 361         char            n_sclass;       /* storage class */
 362         char            n_numaux;       /* number of aux. entries */
 363
 364 #ifndef TC_A29K
 365         char            pad2[2];        /* force alignment */
 366 #endif /* TC_A29K */
 367 };
 368
 369 #define SYMENT  struct syment
 370 #define SYMESZ  sizeof(SYMENT) /* This had better also be sizeof(AUXENT) */
 371
 372 #define n_name          _n._n_name
 373 #define n_ptr           _n._n_nptr[1]
 374 #define n_zeroes        _n._n_n._n_zeroes
 375 #define n_offset        _n._n_n._n_offset
 376
 377     /*
 378      * Relocatable symbols have number of the section in which they are defined,
 379      * or one of the following:
 380      */
 381
 382 #define N_SCNUM ((short) 1-65535) /* section num where symbol defined */
 383 #define N_UNDEF ((short)0)  /* undefined symbol */
 384 #define N_ABS   ((short)-1) /* value of symbol is absolute */
 385 #define N_DEBUG ((short)-2) /* debugging symbol -- symbol value is meaningless */
 386 #define N_TV    ((short)-3) /* indicates symbol needs preload transfer vector */
 387 #define P_TV    ((short)-4) /* indicates symbol needs transfer vector (postload) */
 388
 389 /*
 390  * Type of a symbol, in low 4 bits of the word
 391  */
 392 #define T_NULL          0 /* type not assigned */
 393 #define T_VOID          1 /* function argument (only used by compiler) (but now real void). */
 394 #define T_CHAR          2 /* character */
 395 #define T_SHORT         3 /* short integer */
 396 #define T_INT           4 /* integer */
 397 #define T_LONG          5 /* long integer */
 398 #define T_FLOAT         6 /* floating point */
 399 #define T_DOUBLE        7 /* double word */
 400 #define T_STRUCT        8 /* structure */
 401 #define T_UNION         9 /* union */
 402 #define T_ENUM          10 /* enumeration */
 403 #define T_MOE           11 /* member of enumeration */
 404 #define T_UCHAR         12 /* unsigned character */
 405 #define T_USHORT        13 /* unsigned short */
 406 #define T_UINT          14 /* unsigned integer */
 407 #define T_ULONG         15 /* unsigned long */
 408
 409 #ifdef TC_I960
 410 #define T_LNGDBL        16      /* long double */
 411 #endif /* TC_I960 */
 412
 413 /*
 414  * derived types, in n_type
 415  */
 416 #define DT_NON          (0)     /* no derived type */
 417 #define DT_PTR          (1)     /* pointer */
 418 #define DT_FCN          (2)     /* function */
 419 #define DT_ARY          (3)     /* array */
 420
 421 #ifndef TC_I960
 422
 423 #define N_BTMASK        (0x0f)
 424 #define N_TMASK         (0x30)
 425 #define N_BTSHFT        (4)
 426 #define N_TSHIFT        (2)
 427
 428 #else /* TC_I960 */
 429
 430 #define N_BTMASK        (0x1f)
 431 #define N_TMASK         (0x60)
 432 #define N_BTSHFT        (5)
 433 #define N_TSHIFT        (2)
 434
 435 #endif /* TC_I960 */
 436
 437 #define BTYPE(x)        ((x) & N_BTMASK)
 438
 439 #define ISPTR(x)        (((x) & N_TMASK) == (DT_PTR << N_BTSHFT))
 440 #define ISFCN(x)        (((x) & N_TMASK) == (DT_FCN << N_BTSHFT))
 441 #define ISARY(x)        (((x) & N_TMASK) == (DT_ARY << N_BTSHFT))
 442
 443 #define DECREF(x) ((((x)>>N_TSHIFT)&~N_BTMASK)|((x)&N_BTMASK))
 444
 445 union auxent {
 446         struct {
 447                 long x_tagndx;  /* str, un, or enum tag indx */
 448                 union {
 449                         struct {
 450                                 unsigned short x_lnno; /* declaration line number */
 451                                 unsigned short x_size; /* str/union/array size */
 452                         } x_lnsz;
 453                         long x_fsize;   /* size of function */
 454                 } x_misc;
 455                 union {
 456                         struct {                /* if ISFCN, tag, or .bb */
 457                                 long x_lnnoptr; /* ptr to fcn line # */
 458                                 long x_endndx;  /* entry ndx past block end */
 459                         } x_fcn;
 460                         struct {                /* if ISARY, up to 4 dimen. */
 461                                 unsigned short x_dimen[DIMNUM];
 462                         } x_ary;
 463                 } x_fcnary;
 464                 unsigned short x_tvndx;         /* tv index */
 465         } x_sym;
 466
 467         /* This was just a struct x_file with x_fname only in a29k.  xoxorich. */
 468         union {
 469                 char x_fname[FILNMLEN];
 470                 struct {
 471                         long x_zeroes;
 472                         long x_offset;
 473                 } x_n;
 474         } x_file;
 475
 476         struct {
 477                 long x_scnlen;                  /* section length */
 478                 unsigned short x_nreloc;        /* # relocation entries */
 479                 unsigned short x_nlinno;        /* # line numbers */
 480         } x_scn;
 481
 482         struct {
 483                 long            x_tvfill;       /* tv fill value */
 484                 unsigned short  x_tvlen;        /* length of .tv */
 485
 486                 /* This field was typo'd x_tvrna on a29k. xoxorich. */
 487                 unsigned short  x_tvran[2];     /* tv range */
 488         } x_tv;         /* info about .tv section (in auxent of symbol .tv)) */
 489
 490 #ifdef TC_I960
 491         /******************************************
 492          *  I960-specific *2nd* aux. entry formats
 493          ******************************************/
 494         struct {
 495                 /* This is a very old typo that keeps getting propogated. */
 496 #define x_stdindx x_stindx
 497                 long x_stindx;  /* sys. table entry */
 498         } x_sc; /* system call entry */
 499
 500         struct {
 501                 unsigned long x_balntry; /* BAL entry point */
 502         } x_bal; /* BAL-callable function */
 503
 504         struct {
 505                 unsigned long   x_timestamp;            /* time stamp */
 506                 char    x_idstring[20];         /* producer identity string */
 507         } x_ident;                              /* Producer ident info */
 508
 509         char a[sizeof(struct syment)];  /* force auxent/syment sizes to match */
 510 #endif /* TC_I960 */
 511 };
 512
 513 #define AUXENT  union auxent
 514 #define AUXESZ  sizeof(AUXENT) /* This had better also be sizeof(SYMENT) */
 515
 516 #if VAX || I960
 517 #       define _ETEXT   "_etext"
 518 #else
 519 #       define _ETEXT   "etext"
 520 #endif
 521
 522 /********************** RELOCATION DIRECTIVES **********************/
 523
 524 struct reloc {
 525         long r_vaddr;           /* Virtual address of reference */
 526         long r_symndx;          /* Index into symbol table */
 527         unsigned short r_type;  /* Relocation type */
 528 #ifdef TC_I960
 529         /* not used for a29k */
 530         char pad[2];            /* Unused */
 531 #endif /* TC_I960 */
 532 };
 533
 534 #define RELOC struct reloc
 535 #define RELSZ sizeof(RELOC)
 536
 537 #define R_ABS           (0x00) /* reference is absolute */
 538
 539 #ifdef TC_I960
 540 #define R_RELLONG       (0x11)  /* Direct 32-bit relocation */
 541 #define R_IPRSHORT      (0x18)
 542 #define R_IPRMED        (0x19)  /* 24-bit ip-relative relocation */
 543 #define R_IPRLONG       (0x1a)
 544 #define R_OPTCALL       (0x1b)  /* 32-bit optimizable call (leafproc/sysproc) */
 545 #define R_OPTCALLX      (0x1c)  /* 64-bit optimizable call (leafproc/sysproc) */
 546 #define R_GETSEG        (0x1d)
 547 #define R_GETPA         (0x1e)
 548 #define R_TAGWORD       (0x1f)
 549 #endif /* TC_I960 */
 550
 551 #ifdef TC_A29K
 552 /*
 553  * NOTE: All the "I" forms refer to Am29000 instruction
 554  * formats.  The linker is expected to know how the numeric
 555  * information is split and/or aligned within the
 556  * instruction word(s).  R_BYTE works for instructions, too.
 557  *
 558  * If the parameter to a CONSTH instruction is a relocatable
 559  * type, two relocation records are written.  The first has
 560  * an r_type of R_IHIHALF (33 octal) and a normal r_vaddr
 561  * and r_symndx.  The second relocation record has an r_type
 562  * of R_IHCONST (34 octal), a normal r_vaddr (which is
 563  * redundant), and an r_symndx containing the 32-bit
 564  * constant offset to the relocation instead of the actual
 565  * symbol table index.  This second record is always
 566  * written, even if the constant offset is zero.  The
 567  * constant fields of the instruction are set to zero.
 568  */
 569
 570 #define R_IREL          (0x18) /* instruction relative (jmp/call) */
 571 #define R_IABS          (0x19) /* instruction absolute (jmp/call) */
 572 #define R_ILOHALF       (0x1a) /* instruction low half  (const)  */
 573 #define R_IHIHALF       (0x1b) /* instruction high half (consth) part 1 */
 574 #define R_IHCONST       (0x1c) /* instruction high half (consth) part 2
 575                                   constant offset of R_IHIHALF relocation */
 576 #define R_BYTE          (0x1d) /* relocatable byte value */
 577 #define R_HWORD         (0x1e) /* relocatable halfword value */
 578 #define R_WORD          (0x1f) /* relocatable word value */
 579 #define R_IGLBLRC       (0x20) /* instruction global register RC */
 580 #define R_IGLBLRA       (0x21) /* instruction global register RA */
 581 #define R_IGLBLRB       (0x22) /* instruction global register RB */
 582 #endif /* TC_A29K */
 583
 584
 585 #define DEFAULT_DATA_SECTION_ALIGNMENT 4
 586 #define DEFAULT_BSS_SECTION_ALIGNMENT 4
 587 #define DEFAULT_TEXT_SECTION_ALIGNMENT 16
 588 /* For new sections we haven't heard of before */
 589 #define DEFAULT_SECTION_ALIGNMENT 4
 590
 591 #if defined(TC_I386)
 592 /*
 593  * X86 generic
 594  *      8-bit offset reference in 8-bits
 595  *      8-bit offset reference in 16-bits
 596  *      12-bit segment reference
 597  *      auxiliary relocation entry
 598  */
 599 #define R_OFF8          07
 600 #define R_OFF16         010
 601 #define R_SEG12         011
 602 #define R_AUX           013
 603
 604 /*
 605  * B16 and X86 generics
 606  *      16-bit direct reference
 607  *      16-bit "relative" reference
 608  *      16-bit "indirect" (TV) reference
 609  */
 610 #define  R_DIR16        01
 611 #define  R_REL16        02
 612 #define  R_IND16        03
 613
 614 /*
 615  * 3B generic
 616  *      24-bit direct reference
 617  *      24-bit "relative" reference
 618  *      16-bit optimized "indirect" TV reference
 619  *      24-bit "indirect" TV reference
 620  *      32-bit "indirect" TV reference
 621  */
 622 #define  R_DIR24        04
 623 #define  R_REL24        05
 624 #define  R_OPT16        014
 625 #define  R_IND24        015
 626 #define  R_IND32        016
 627
 628 /*
 629  * XL generics
 630  *      10-bit direct reference
 631  *      10-bit "relative" reference
 632  *      32-bit "relative" reference
 633  */
 634 #define R_DIR10         025
 635 #define R_REL10         026
 636 #define R_REL32         027
 637
 638 /*
 639  * 3B and M32 generics
 640  *      32-bit direct reference
 641  */
 642 #define  R_DIR32        06
 643
 644 /*
 645  * M32 generic
 646  *      32-bit direct reference with bytes swapped
 647  */
 648 #define  R_DIR32S       012
 649
 650 #endif /* TC_I386 */
 651
 652 #if defined(TE_I386AIX)
 653
 654 #define UINFOSIZ        64      /* size of user info buffer */
 655 typedef char uinfo_t[UINFOSIZ];
 656
 657 struct env387 {
 658   unsigned short control;
 659   unsigned short r0;
 660   unsigned short status;
 661   unsigned short r1;
 662   unsigned short tag;
 663   unsigned short r2;
 664   unsigned long eip;
 665   unsigned short code_seg;
 666   unsigned short opcode;
 667   unsigned long operand;
 668   unsigned short operand_seg;
 669   unsigned short r3;
 670   unsigned char regs[8][10];
 671 };
 672
 673 #define CD_NAMELEN 16   /* length of most names in this header */
 674 #define CORHDRSIZ       2048 /* size to which header is padded out */
 675 #define MAX_CORE_SEGS   32 /* maximum segments in a core dump */
 676 #define NUM_FREGS       1 /* # of saved FP regs */
 677
 678 /*
 679  * These are defined such that 286 and 386 kernels can produce
 680  * compatible dumps.
 681  */
 682 #define CD_AX   0
 683 #define CD_BX   1
 684 #define CD_CX   2
 685 #define CD_DX   3
 686 #define CD_SI   4
 687 #define CD_DI   5
 688 #define CD_BP   6
 689 #define CD_SP   7
 690 #define CD_FL   8
 691 #define CD_IP   9
 692 #define CD_CS   10
 693 #define CD_DS   11
 694 #define CD_ES   12
 695 #define CD_FS   13
 696 #define CD_GS   14
 697 #define CD_SS   15
 698 #define NUM_REGS        16
 699
 700 #ifndef SPATHLEN
 701 # define SPATHLEN 16 /* sys/param.h */
 702 #endif
 703 #ifndef NSIG
 704 # define NSIG 63 /* sys/signal.h */
 705 # define SIGSETSZ ((NSIG+31)/32)
 706 typedef struct ksigmask {
 707         unsigned long sigs[SIGSETSZ];
 708 } ksigmask_t;
 709 #endif
 710
 711 struct corehdr {
 712         char cd_magic[4];               /* COR_MAGIC = "core" */
 713
 714         /* general information about the dump itself */
 715         struct dumpseg { /* table of contents for dump */
 716                 long cs_type; /* seg. type; see below */
 717                 long cs_len; /* length (in bytes) of segment */
 718                 long cs_offset; /* offset (in dump) of segment */
 719                 long cs_address; /* address segment had in mem */
 720         } cd_segs[MAX_CORE_SEGS];
 721
 722         /* general information about the process */
 723         char cd_comm[CD_NAMELEN]; /* command being run */
 724         char cd_mach[CD_NAMELEN]; /* type of machine it ran on */
 725         char cd_site[CD_NAMELEN]; /* name of site it ran on */
 726         long cd_ldtype; /* type of load module running */
 727         char cd_intsize; /* sizeof(int) */
 728         char cd_dptrsize; /* sizeof(char *) */
 729         char cd_tptrsize; /* sizeof(int (*)()) */
 730         char cd_unused;
 731
 732         /* user-mode program state */
 733         long cd_regs[NUM_REGS]; /* user-mode general registers  */
 734         struct env387 cd_fpregs; /* user-mode floating-point state */
 735
 736         /* kernel-mode program state */
 737         int (*cd_sig[NSIG])(); /* disposition of signals */
 738         ksigmask_t cd_sigmask; /* signals to be blocked */
 739         ksigmask_t cd_sigpend; /* signals currently pending */
 740         long cd_cursig; /* signal that caused the dump */
 741
 742         long cd_pid; /* process ID of the corpse */
 743         long cd_ppid; /* parent process ID of corpse */
 744         short cd_uid; /* process effective user ID */
 745         short cd_ruid; /* process real user ID */
 746         short cd_gid; /* process effective group ID */
 747         short cd_rgid; /* process real group ID */
 748
 749         uinfo_t cd_uinfo; /* buffer of user information */
 750         char cd_locname[32]; /* name of /local */
 751         char cd_uvers[CD_NAMELEN]; /* user version string */
 752         unsigned short cd_spath[SPATHLEN]; /* sitepath */
 753 };
 754
 755 #ifndef NOCHECKS
 756 /* this will generate an error if sizeof(struct corehdr) > CORHDRSIZ */
 757 struct { char xxcdxx[CORHDRSIZ+1-sizeof(struct corehdr)]; };
 758 #endif  /* ! NOCHECKS */
 759
 760 /*
 761  * segment types (in cs_type)
 762  *      each segment in the address space appears here, whether or not it
 763  *      is actually dumped.  Read/only segments will not actually be dumped.
 764  *      A segment that is not in the dump will have a cs_offset of zero.
 765  */
 766 #define COR_TYPE_CODE           'x'     /* process code - NOT IN DUMP   */
 767 #define COR_TYPE_DATA           'd'     /* process data segment         */
 768 #define COR_TYPE_STACK          's'     /* process stack segment        */
 769 #define COR_TYPE_LIBCODE        'X'     /* shared lib code - NOT IN DUMP*/
 770 #define COR_TYPE_LIBDATA        'D'     /* shared lib data              */
 771 #define COR_TYPE_READ           'r'     /* other read/only - NOT IN DUMP*/
 772 #define COR_TYPE_WRITE          'w'     /* other writeable              */
 773 #define COR_TYPE_MSC            '?'     /* other, mapped in segment     */
 774
 775 #endif /* TE_I386AIX */
 776
 777 /*
 778  * Local Variables:
 779  * comment-column: 0
 780  * End:
 781  */
 782
 783 /* end of coff_gnu.h */