include/coff/internal.h

   1 /* Internal format of COFF object file data structures, for GNU BFD.
   2    This file is part of BFD, the Binary File Descriptor library.
   3
   4    Copyright 2001 Free Software Foundation, Inc.
   5
   6    This program 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 of the License, or
   9    (at your option) any later version.
  10
  11    This program 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 this program; if not, write to the Free Software
  18    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  19
  20 #ifndef GNU_COFF_INTERNAL_H
  21 #define GNU_COFF_INTERNAL_H 1
  22
  23 /* First, make "signed char" work, even on old compilers. */
  24 #ifndef signed
  25 #ifndef __STDC__
  26 #define signed                  /**/
  27 #endif
  28 #endif
  29
  30 /********************** FILE HEADER **********************/
  31
  32 /* extra stuff in a PE header. */
  33
  34 struct internal_extra_pe_filehdr
  35 {
  36   /* DOS header data follows for PE stuff */
  37   unsigned short e_magic;       /* Magic number, 0x5a4d */
  38   unsigned short e_cblp;        /* Bytes on last page of file, 0x90 */
  39   unsigned short e_cp;          /* Pages in file, 0x3 */
  40   unsigned short e_crlc;        /* Relocations, 0x0 */
  41   unsigned short e_cparhdr;     /* Size of header in paragraphs, 0x4 */
  42   unsigned short e_minalloc;    /* Minimum extra paragraphs needed, 0x0 */
  43   unsigned short e_maxalloc;    /* Maximum extra paragraphs needed, 0xFFFF */
  44   unsigned short e_ss;          /* Initial (relative) SS value, 0x0 */
  45   unsigned short e_sp;          /* Initial SP value, 0xb8 */
  46   unsigned short e_csum;        /* Checksum, 0x0 */
  47   unsigned short e_ip;          /* Initial IP value, 0x0 */
  48   unsigned short e_cs;          /* Initial (relative) CS value, 0x0 */
  49   unsigned short e_lfarlc;      /* File address of relocation table, 0x40 */
  50   unsigned short e_ovno;        /* Overlay number, 0x0 */
  51   unsigned short e_res[4];      /* Reserved words, all 0x0 */
  52   unsigned short e_oemid;       /* OEM identifier (for e_oeminfo), 0x0 */
  53   unsigned short e_oeminfo;     /* OEM information; e_oemid specific, 0x0 */
  54   unsigned short e_res2[10];    /* Reserved words, all 0x0 */
  55   bfd_vma  e_lfanew;            /* File address of new exe header, 0x80 */
  56   unsigned long dos_message[16]; /* text which always follows dos header */
  57   bfd_vma  nt_signature;        /* required NT signature, 0x4550 */
  58 };
  59
  60 struct internal_filehdr
  61 {
  62   struct internal_extra_pe_filehdr pe;
  63
  64   /* Standard coff internal info.  */
  65   unsigned short f_magic;       /* magic number                 */
  66   unsigned short f_nscns;       /* number of sections           */
  67   long f_timdat;                /* time & date stamp            */
  68   bfd_vma f_symptr;             /* file pointer to symtab       */
  69   long f_nsyms;                 /* number of symtab entries     */
  70   unsigned short f_opthdr;      /* sizeof(optional hdr)         */
  71   unsigned short f_flags;       /* flags                        */
  72   unsigned short f_target_id;   /* (TI COFF specific)           */
  73 };
  74
  75
  76 /* Bits for f_flags:
  77         F_RELFLG        relocation info stripped from file
  78         F_EXEC          file is executable (no unresolved external references)
  79         F_LNNO          line numbers stripped from file
  80         F_LSYMS         local symbols stripped from file
  81         F_AR16WR        file is 16-bit little-endian
  82         F_AR32WR        file is 32-bit little-endian
  83         F_AR32W         file is 32-bit big-endian
  84         F_DYNLOAD       rs/6000 aix: dynamically loadable w/imports & exports
  85         F_SHROBJ        rs/6000 aix: file is a shared object
  86         F_DLL           PE format DLL.  */
  87
  88 #define F_RELFLG        (0x0001)
  89 #define F_EXEC          (0x0002)
  90 #define F_LNNO          (0x0004)
  91 #define F_LSYMS         (0x0008)
  92 #define F_AR16WR        (0x0080)
  93 #define F_AR32WR        (0x0100)
  94 #define F_AR32W         (0x0200)
  95 #define F_DYNLOAD       (0x1000)
  96 #define F_SHROBJ        (0x2000)
  97 #define F_DLL           (0x2000)
  98
  99 /* Extra structure which is used in the optional header.  */
 100 typedef struct _IMAGE_DATA_DIRECTORY
 101 {
 102   bfd_vma VirtualAddress;
 103   long    Size;
 104 }  IMAGE_DATA_DIRECTORY;
 105 #define IMAGE_NUMBEROF_DIRECTORY_ENTRIES  16
 106
 107 /* Default image base for NT.  */
 108 #define NT_EXE_IMAGE_BASE 0x400000
 109 #define NT_DLL_IMAGE_BASE 0x10000000
 110
 111 /* Default image base for BeOS. */
 112 #define BEOS_EXE_IMAGE_BASE 0x80000000
 113 #define BEOS_DLL_IMAGE_BASE 0x10000000
 114
 115 /* Extra stuff in a PE aouthdr */
 116
 117 #define PE_DEF_SECTION_ALIGNMENT 0x1000
 118 #ifndef PE_DEF_FILE_ALIGNMENT
 119 # define PE_DEF_FILE_ALIGNMENT 0x200
 120 #endif
 121
 122 struct internal_extra_pe_aouthdr
 123 {
 124   /* PE stuff  */
 125   bfd_vma ImageBase;            /* address of specific location in memory that
 126                                    file is located, NT default 0x10000 */
 127
 128   bfd_vma SectionAlignment;     /* section alignment default 0x1000 */
 129   bfd_vma FileAlignment;        /* file alignment default 0x200 */
 130   short   MajorOperatingSystemVersion; /* minimum version of the operating */
 131   short   MinorOperatingSystemVersion; /* system req'd for exe, default to 1*/
 132   short   MajorImageVersion;    /* user defineable field to store version of */
 133   short   MinorImageVersion;    /* exe or dll being created, default to 0 */
 134   short   MajorSubsystemVersion; /* minimum subsystem version required to */
 135   short   MinorSubsystemVersion; /* run exe; default to 3.1 */
 136   long    Reserved1;            /* seems to be 0 */
 137   long    SizeOfImage;          /* size of memory to allocate for prog */
 138   long    SizeOfHeaders;        /* size of PE header and section table */
 139   long    CheckSum;             /* set to 0 */
 140   short   Subsystem;
 141
 142   /* type of subsystem exe uses for user interface,
 143      possible values:
 144      1 - NATIVE   Doesn't require a subsystem
 145      2 - WINDOWS_GUI runs in Windows GUI subsystem
 146      3 - WINDOWS_CUI runs in Windows char sub. (console app)
 147      5 - OS2_CUI runs in OS/2 character subsystem
 148      7 - POSIX_CUI runs in Posix character subsystem */
 149   short   DllCharacteristics;   /* flags for DLL init, use 0 */
 150   bfd_vma SizeOfStackReserve;   /* amount of memory to reserve  */
 151   bfd_vma SizeOfStackCommit;    /* amount of memory initially committed for
 152                                    initial thread's stack, default is 0x1000 */
 153   bfd_vma SizeOfHeapReserve;    /* amount of virtual memory to reserve and */
 154   bfd_vma SizeOfHeapCommit;     /* commit, don't know what to defaut it to */
 155   long    LoaderFlags;          /* can probably set to 0 */
 156   long    NumberOfRvaAndSizes;  /* number of entries in next entry, 16 */
 157   IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES];
 158 };
 159
 160 /********************** AOUT "OPTIONAL HEADER" **********************/
 161 struct internal_aouthdr
 162 {
 163   short magic;                  /* type of file                         */
 164   short vstamp;                 /* version stamp                        */
 165   bfd_vma tsize;                /* text size in bytes, padded to FW bdry*/
 166   bfd_vma dsize;                /* initialized data "  "                */
 167   bfd_vma bsize;                /* uninitialized data "   "             */
 168   bfd_vma entry;                /* entry pt.                            */
 169   bfd_vma text_start;           /* base of text used for this file */
 170   bfd_vma data_start;           /* base of data used for this file */
 171
 172   /* i960 stuff */
 173   unsigned long tagentries;     /* number of tag entries to follow */
 174
 175   /* RS/6000 stuff */
 176   bfd_vma o_toc;                /* address of TOC                       */
 177   short o_snentry;              /* section number for entry point */
 178   short o_sntext;               /* section number for text      */
 179   short o_sndata;               /* section number for data      */
 180   short o_sntoc;                /* section number for toc       */
 181   short o_snloader;             /* section number for loader section */
 182   short o_snbss;                /* section number for bss       */
 183   short o_algntext;             /* max alignment for text       */
 184   short o_algndata;             /* max alignment for data       */
 185   short o_modtype;              /* Module type field, 1R,RE,RO  */
 186   short o_cputype;              /* Encoded CPU type             */
 187   bfd_vma o_maxstack;   /* max stack size allowed.      */
 188   bfd_vma o_maxdata;    /* max data size allowed.       */
 189
 190   /* ECOFF stuff */
 191   bfd_vma bss_start;            /* Base of bss section.         */
 192   bfd_vma gp_value;             /* GP register value.           */
 193   unsigned long gprmask;        /* General registers used.      */
 194   unsigned long cprmask[4];     /* Coprocessor registers used.  */
 195   unsigned long fprmask;        /* Floating pointer registers used.  */
 196
 197   /* Apollo stuff */
 198   long o_inlib;                 /* inlib data */
 199   long o_sri;                   /* Static Resource Information */
 200   long vid[2];                  /* Version id */
 201
 202   struct internal_extra_pe_aouthdr pe;
 203 };
 204
 205 /********************** STORAGE CLASSES **********************/
 206
 207 /* This used to be defined as -1, but now n_sclass is unsigned.  */
 208 #define C_EFCN          0xff    /* physical end of function     */
 209 #define C_NULL          0
 210 #define C_AUTO          1       /* automatic variable           */
 211 #define C_EXT           2       /* external symbol              */
 212 #define C_STAT          3       /* static                       */
 213 #define C_REG           4       /* register variable            */
 214 #define C_EXTDEF        5       /* external definition          */
 215 #define C_LABEL         6       /* label                        */
 216 #define C_ULABEL        7       /* undefined label              */
 217 #define C_MOS           8       /* member of structure          */
 218 #define C_ARG           9       /* function argument            */
 219 #define C_STRTAG        10      /* structure tag                */
 220 #define C_MOU           11      /* member of union              */
 221 #define C_UNTAG         12      /* union tag                    */
 222 #define C_TPDEF         13      /* type definition              */
 223 #define C_USTATIC       14      /* undefined static             */
 224 #define C_ENTAG         15      /* enumeration tag              */
 225 #define C_MOE           16      /* member of enumeration        */
 226 #define C_REGPARM       17      /* register parameter           */
 227 #define C_FIELD         18      /* bit field                    */
 228 #define C_AUTOARG       19      /* auto argument                */
 229 #define C_LASTENT       20      /* dummy entry (end of block)   */
 230 #define C_BLOCK         100     /* ".bb" or ".eb"               */
 231 #define C_FCN           101     /* ".bf" or ".ef"               */
 232 #define C_EOS           102     /* end of structure             */
 233 #define C_FILE          103     /* file name                    */
 234 #define C_LINE          104     /* line # reformatted as symbol table entry */
 235 #define C_ALIAS         105     /* duplicate tag                */
 236 #define C_HIDDEN        106     /* ext symbol in dmert public lib */
 237
 238 #if defined _AIX52 || defined AIX_WEAK_SUPPORT
 239 #define C_WEAKEXT       111     /* weak symbol -- AIX standard.  */
 240 #else
 241 #define C_WEAKEXT       127     /* weak symbol -- GNU extension.  */
 242 #endif
 243
 244 /* New storage classes for TI COFF */
 245 #define C_UEXT          19      /* Tentative external definition */
 246 #define C_STATLAB       20      /* Static load time label */
 247 #define C_EXTLAB        21      /* External load time label */
 248 #define C_SYSTEM        23      /* System Wide variable */
 249
 250 /* New storage classes for WINDOWS_NT   */
 251 #define C_SECTION       104     /* section name */
 252 #define C_NT_WEAK       105     /* weak external */
 253
 254  /* New storage classes for 80960 */
 255
 256 /* C_LEAFPROC is obsolete.  Use C_LEAFEXT or C_LEAFSTAT */
 257 #define C_LEAFPROC      108     /* Leaf procedure, "call" via BAL */
 258
 259 #define C_SCALL         107     /* Procedure reachable via system call */
 260 #define C_LEAFEXT       108     /* External leaf */
 261 #define C_LEAFSTAT      113     /* Static leaf */
 262 #define C_OPTVAR        109     /* Optimized variable           */
 263 #define C_DEFINE        110     /* Preprocessor #define         */
 264 #define C_PRAGMA        111     /* Advice to compiler or linker */
 265 #define C_SEGMENT       112     /* 80960 segment name           */
 266
 267   /* Storage classes for m88k */
 268 #define C_SHADOW        107     /* shadow symbol                */
 269 #define C_VERSION       108     /* coff version symbol          */
 270
 271  /* New storage classes for RS/6000 */
 272 #define C_HIDEXT        107     /* Un-named external symbol */
 273 #define C_BINCL         108     /* Marks beginning of include file */
 274 #define C_EINCL         109     /* Marks ending of include file */
 275
 276  /* storage classes for stab symbols for RS/6000 */
 277 #define C_GSYM          (0x80)
 278 #define C_LSYM          (0x81)
 279 #define C_PSYM          (0x82)
 280 #define C_RSYM          (0x83)
 281 #define C_RPSYM         (0x84)
 282 #define C_STSYM         (0x85)
 283 #define C_TCSYM         (0x86)
 284 #define C_BCOMM         (0x87)
 285 #define C_ECOML         (0x88)
 286 #define C_ECOMM         (0x89)
 287 #define C_DECL          (0x8c)
 288 #define C_ENTRY         (0x8d)
 289 #define C_FUN           (0x8e)
 290 #define C_BSTAT         (0x8f)
 291 #define C_ESTAT         (0x90)
 292
 293 /* Storage classes for Thumb symbols */
 294 #define C_THUMBEXT      (128 + C_EXT)           /* 130 */
 295 #define C_THUMBSTAT     (128 + C_STAT)          /* 131 */
 296 #define C_THUMBLABEL    (128 + C_LABEL)         /* 134 */
 297 #define C_THUMBEXTFUNC  (C_THUMBEXT  + 20)      /* 150 */
 298 #define C_THUMBSTATFUNC (C_THUMBSTAT + 20)      /* 151 */
 299
 300 /********************** SECTION HEADER **********************/
 301
 302 #define SCNNMLEN (8)
 303
 304 struct internal_scnhdr
 305 {
 306   char s_name[SCNNMLEN];        /* section name                 */
 307
 308   /* Physical address, aliased s_nlib.
 309      In the pei format, this field is the virtual section size
 310      (the size of the section after being loaded int memory),
 311      NOT the physical address.  */
 312   bfd_vma s_paddr;
 313
 314   bfd_vma s_vaddr;              /* virtual address              */
 315   bfd_vma s_size;               /* section size                 */
 316   bfd_vma s_scnptr;             /* file ptr to raw data for section */
 317   bfd_vma s_relptr;             /* file ptr to relocation       */
 318   bfd_vma s_lnnoptr;            /* file ptr to line numbers     */
 319   unsigned long s_nreloc;       /* number of relocation entries */
 320   unsigned long s_nlnno;        /* number of line number entries*/
 321   long s_flags;                 /* flags                        */
 322   long s_align;                 /* used on I960                 */
 323   unsigned char s_page;         /* TI COFF load page            */
 324 };
 325
 326 /* s_flags "type".  */
 327 #define STYP_REG         (0x0000)       /* "regular": allocated, relocated, loaded */
 328 #define STYP_DSECT       (0x0001)       /* "dummy":  relocated only*/
 329 #define STYP_NOLOAD      (0x0002)       /* "noload": allocated, relocated, not loaded */
 330 #define STYP_GROUP       (0x0004)       /* "grouped": formed of input sections */
 331 #define STYP_PAD         (0x0008)       /* "padding": not allocated, not relocated, loaded */
 332 #define STYP_COPY        (0x0010)       /* "copy": for decision function used by field update;  not allocated, not relocated,
 333                                                                              loaded; reloc & lineno entries processed normally */
 334 #define STYP_TEXT        (0x0020)       /* section contains text only */
 335 #define S_SHRSEG         (0x0020)       /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile
 336                                                                              will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will
 337                                                                              update all process invocations. */
 338 #define STYP_DATA        (0x0040)       /* section contains data only */
 339 #define STYP_BSS         (0x0080)       /* section contains bss only */
 340 #define S_NEWFCN         (0x0100)       /* In a minimal file or an update file, a new function (as compared with a replaced function) */
 341 #define STYP_INFO        (0x0200)       /* comment: not allocated not relocated, not loaded */
 342 #define STYP_OVER        (0x0400)       /* overlay: relocated not allocated or loaded */
 343 #define STYP_LIB         (0x0800)       /* for .lib: same as INFO */
 344 #define STYP_MERGE       (0x2000)       /* merge section -- combines with text, data or bss sections only */
 345 #define STYP_REVERSE_PAD (0x4000)       /* section will be padded with no-op instructions
 346                                            wherever padding is necessary and there is a
 347                                            word of contiguous bytes beginning on a word
 348                                            boundary. */
 349
 350 #define STYP_LIT        0x8020  /* Literal data (like STYP_TEXT) */
 351
 352
 353 /********************** LINE NUMBERS **********************/
 354
 355 /* 1 line number entry for every "breakpointable" source line in a section.
 356    Line numbers are grouped on a per function basis; first entry in a function
 357    grouping will have l_lnno = 0 and in place of physical address will be the
 358    symbol table index of the function name.  */
 359
 360 struct internal_lineno
 361 {
 362   union
 363   {
 364     bfd_signed_vma l_symndx;            /* function name symbol index, iff l_lnno == 0*/
 365     bfd_signed_vma l_paddr;             /* (physical) address of line number    */
 366   }     l_addr;
 367   unsigned long l_lnno;         /* line number          */
 368 };
 369
 370 /********************** SYMBOLS **********************/
 371
 372 #define SYMNMLEN        8       /* # characters in a symbol name        */
 373 #define FILNMLEN        14      /* # characters in a file name          */
 374 #define DIMNUM          4       /* # array dimensions in auxiliary entry */
 375
 376 struct internal_syment
 377 {
 378   union
 379   {
 380     char _n_name[SYMNMLEN];     /* old COFF version     */
 381     struct
 382     {
 383       long _n_zeroes;           /* new == 0             */
 384       long _n_offset;           /* offset into string table */
 385     }      _n_n;
 386     char *_n_nptr[2];           /* allows for overlaying        */
 387   }     _n;
 388   bfd_vma n_value;                      /* value of symbol              */
 389   short n_scnum;                /* section number               */
 390   unsigned short n_flags;       /* copy of flags from filhdr    */
 391   unsigned short n_type;        /* type and derived type        */
 392   unsigned char n_sclass;       /* storage class                */
 393   unsigned char n_numaux;       /* number of aux. entries       */
 394 };
 395
 396 #define n_name          _n._n_name
 397 #define n_zeroes        _n._n_n._n_zeroes
 398 #define n_offset        _n._n_n._n_offset
 399
 400 /* Relocatable symbols have number of the section in which they are defined,
 401    or one of the following:  */
 402
 403 #define N_UNDEF ((short)0)      /* undefined symbol */
 404 #define N_ABS   ((short)-1)     /* value of symbol is absolute */
 405 #define N_DEBUG ((short)-2)     /* debugging symbol -- value is meaningless */
 406 #define N_TV    ((short)-3)     /* indicates symbol needs preload transfer vector */
 407 #define P_TV    ((short)-4)     /* indicates symbol needs postload transfer vector*/
 408
 409 /* Type of a symbol, in low N bits of the word.  */
 410
 411 #define T_NULL          0
 412 #define T_VOID          1       /* function argument (only used by compiler) */
 413 #define T_CHAR          2       /* character            */
 414 #define T_SHORT         3       /* short integer        */
 415 #define T_INT           4       /* integer              */
 416 #define T_LONG          5       /* long integer         */
 417 #define T_FLOAT         6       /* floating point       */
 418 #define T_DOUBLE        7       /* double word          */
 419 #define T_STRUCT        8       /* structure            */
 420 #define T_UNION         9       /* union                */
 421 #define T_ENUM          10      /* enumeration          */
 422 #define T_MOE           11      /* member of enumeration*/
 423 #define T_UCHAR         12      /* unsigned character   */
 424 #define T_USHORT        13      /* unsigned short       */
 425 #define T_UINT          14      /* unsigned integer     */
 426 #define T_ULONG         15      /* unsigned long        */
 427 #define T_LNGDBL        16      /* long double          */
 428
 429 /* Derived types, in n_type.  */
 430
 431 #define DT_NON          (0)     /* no derived type */
 432 #define DT_PTR          (1)     /* pointer */
 433 #define DT_FCN          (2)     /* function */
 434 #define DT_ARY          (3)     /* array */
 435
 436 #define BTYPE(x)        ((x) & N_BTMASK)
 437 #define DTYPE(x)        (((x) & N_TMASK) >> N_BTSHFT)
 438
 439 #define ISPTR(x) \
 440   (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_PTR << N_BTSHFT))
 441 #define ISFCN(x) \
 442   (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_FCN << N_BTSHFT))
 443 #define ISARY(x) \
 444   (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_ARY << N_BTSHFT))
 445 #define ISTAG(x) \
 446   ((x) == C_STRTAG || (x) == C_UNTAG || (x) == C_ENTAG)
 447 #define DECREF(x) \
 448   ((((x) >> N_TSHIFT) & ~ N_BTMASK) | ((x) & N_BTMASK))
 449
 450 union internal_auxent
 451 {
 452   struct
 453   {
 454
 455     union
 456     {
 457       long l;                   /* str, un, or enum tag indx */
 458       struct coff_ptr_struct *p;
 459     }     x_tagndx;
 460
 461     union
 462     {
 463       struct
 464       {
 465         unsigned short x_lnno;  /* declaration line number */
 466         unsigned short x_size;  /* str/union/array size */
 467       }      x_lnsz;
 468       long x_fsize;             /* size of function */
 469     }     x_misc;
 470
 471     union
 472     {
 473       struct
 474       {                         /* if ISFCN, tag, or .bb */
 475         bfd_signed_vma x_lnnoptr;               /* ptr to fcn line # */
 476         union
 477         {                       /* entry ndx past block end */
 478           long l;
 479           struct coff_ptr_struct *p;
 480         }     x_endndx;
 481       }      x_fcn;
 482
 483       struct
 484       {                         /* if ISARY, up to 4 dimen. */
 485         unsigned short x_dimen[DIMNUM];
 486       }      x_ary;
 487     }     x_fcnary;
 488
 489     unsigned short x_tvndx;     /* tv index */
 490   }      x_sym;
 491
 492   union
 493   {
 494     char x_fname[FILNMLEN];
 495     struct
 496     {
 497       long x_zeroes;
 498       long x_offset;
 499     }      x_n;
 500   }     x_file;
 501
 502   struct
 503   {
 504     long x_scnlen;              /* section length */
 505     unsigned short x_nreloc;    /* # relocation entries */
 506     unsigned short x_nlinno;    /* # line numbers */
 507     unsigned long x_checksum;   /* section COMDAT checksum for PE */
 508     unsigned short x_associated; /* COMDAT associated section index for PE */
 509     unsigned char x_comdat;     /* COMDAT selection number for PE */
 510   }      x_scn;
 511
 512   struct
 513   {
 514     long x_tvfill;              /* tv fill value */
 515     unsigned short x_tvlen;     /* length of .tv */
 516     unsigned short x_tvran[2];  /* tv range */
 517   }      x_tv;                  /* info about .tv section (in auxent of symbol .tv)) */
 518
 519   /******************************************
 520    * RS/6000-specific auxent - last auxent for every external symbol
 521    ******************************************/
 522   struct
 523   {
 524     union
 525       {                         /* csect length or enclosing csect */
 526         bfd_signed_vma l;
 527         struct coff_ptr_struct *p;
 528       } x_scnlen;
 529     long x_parmhash;            /* parm type hash index */
 530     unsigned short x_snhash;    /* sect num with parm hash */
 531     unsigned char x_smtyp;      /* symbol align and type */
 532     /* 0-4 - Log 2 of alignment */
 533     /* 5-7 - symbol type */
 534     unsigned char x_smclas;     /* storage mapping class */
 535     long x_stab;                /* dbx stab info index */
 536     unsigned short x_snstab;    /* sect num with dbx stab */
 537   }      x_csect;               /* csect definition information */
 538
 539 /* x_smtyp values:  */
 540
 541 #define SMTYP_ALIGN(x)  ((x) >> 3)      /* log2 of alignment */
 542 #define SMTYP_SMTYP(x)  ((x) & 0x7)     /* symbol type */
 543 /* Symbol type values:  */
 544 #define XTY_ER  0               /* External reference */
 545 #define XTY_SD  1               /* Csect definition */
 546 #define XTY_LD  2               /* Label definition */
 547 #define XTY_CM  3               /* .BSS */
 548 #define XTY_EM  4               /* Error message */
 549 #define XTY_US  5               /* "Reserved for internal use" */
 550
 551 /* x_smclas values:  */
 552
 553 #define XMC_PR  0               /* Read-only program code */
 554 #define XMC_RO  1               /* Read-only constant */
 555 #define XMC_DB  2               /* Read-only debug dictionary table */
 556 #define XMC_TC  3               /* Read-write general TOC entry */
 557 #define XMC_UA  4               /* Read-write unclassified */
 558 #define XMC_RW  5               /* Read-write data */
 559 #define XMC_GL  6               /* Read-only global linkage */
 560 #define XMC_XO  7               /* Read-only extended operation */
 561 #define XMC_SV  8               /* Read-only supervisor call */
 562 #define XMC_BS  9               /* Read-write BSS */
 563 #define XMC_DS  10              /* Read-write descriptor csect */
 564 #define XMC_UC  11              /* Read-write unnamed Fortran common */
 565 #define XMC_TI  12              /* Read-only traceback index csect */
 566 #define XMC_TB  13              /* Read-only traceback table csect */
 567 /*              14      ??? */
 568 #define XMC_TC0 15              /* Read-write TOC anchor */
 569 #define XMC_TD  16              /* Read-write data in TOC */
 570
 571   /******************************************
 572    *  I960-specific *2nd* aux. entry formats
 573    ******************************************/
 574   struct
 575   {
 576     /* This is a very old typo that keeps getting propagated. */
 577 #define x_stdindx x_stindx
 578     long x_stindx;              /* sys. table entry */
 579   }      x_sc;                  /* system call entry */
 580
 581   struct
 582   {
 583     unsigned long x_balntry;    /* BAL entry point */
 584   }      x_bal;                 /* BAL-callable function */
 585
 586   struct
 587   {
 588     unsigned long x_timestamp;  /* time stamp */
 589     char x_idstring[20];        /* producer identity string */
 590   }      x_ident;               /* Producer ident info */
 591
 592 };
 593
 594 /********************** RELOCATION DIRECTIVES **********************/
 595
 596 struct internal_reloc
 597 {
 598   bfd_vma r_vaddr;              /* Virtual address of reference */
 599   long r_symndx;                /* Index into symbol table      */
 600   unsigned short r_type;        /* Relocation type              */
 601   unsigned char r_size;         /* Used by RS/6000 and ECOFF    */
 602   unsigned char r_extern;       /* Used by ECOFF                */
 603   unsigned long r_offset;       /* Used by Alpha ECOFF, SPARC, others */
 604 };
 605
 606 #define R_DIR16          1
 607 #define R_REL24          5
 608 #define R_DIR32          6
 609 #define R_IMAGEBASE      7
 610 #define R_SECREL32      11
 611 #define R_RELBYTE       15
 612 #define R_RELWORD       16
 613 #define R_RELLONG       17
 614 #define R_PCRBYTE       18
 615 #define R_PCRWORD       19
 616 #define R_PCRLONG       20
 617 #define R_PCR24         21
 618 #define R_IPRSHORT      24
 619 #define R_IPRLONG       26
 620 #define R_GETSEG        29
 621 #define R_GETPA         30
 622 #define R_TAGWORD       31
 623 #define R_JUMPTARG      32      /* strange 29k 00xx00xx reloc */
 624 #define R_PARTLS16      32
 625 #define R_PARTMS8       33
 626
 627 #define R_PCR16L       128
 628 #define R_PCR26L       129
 629 #define R_VRT16        130
 630 #define R_HVRT16       131
 631 #define R_LVRT16       132
 632 #define R_VRT32        133
 633
 634
 635 /* This reloc identifies mov.b instructions with a 16bit absolute
 636    address.  The linker tries to turn insns with this reloc into
 637    an absolute 8-bit address.  */
 638 #define R_MOV16B1       0x41
 639
 640 /* This reloc identifies mov.b instructions which had a 16bit
 641    absolute address which have been shortened into a 8-bit
 642    absolute address.  */
 643 #define R_MOV16B2       0x42
 644
 645 /* This reloc identifies jmp insns with a 16bit target address;
 646    the linker tries to turn these insns into bra insns with
 647    an 8bit pc-relative target.  */
 648 #define R_JMP1          0x43
 649
 650 /* This reloc identifies a bra with an 8-bit pc-relative
 651    target that was formerly a jmp insn with a 16bit target.  */
 652 #define R_JMP2          0x44
 653
 654 /* ??? */
 655 #define R_RELLONG_NEG   0x45
 656
 657 /* This reloc identifies jmp insns with a 24bit target address;
 658    the linker tries to turn these insns into bra insns with
 659    an 8bit pc-relative target.  */
 660 #define R_JMPL1         0x46
 661
 662 /* This reloc identifies a bra with an 8-bit pc-relative
 663    target that was formerly a jmp insn with a 24bit target.  */
 664 #define R_JMPL2         0x47
 665
 666 /* This reloc identifies mov.b instructions with a 24bit absolute
 667    address.  The linker tries to turn insns with this reloc into
 668    an absolute 8-bit address.  */
 669
 670 #define R_MOV24B1       0x48
 671
 672 /* This reloc identifies mov.b instructions which had a 24bit
 673    absolute address which have been shortened into a 8-bit
 674    absolute address.  */
 675 #define R_MOV24B2       0x49
 676
 677 /* An h8300 memory indirect jump/call.  Forces the address of the jump/call
 678    target into the function vector (in page zero), and the address of the
 679    vector entry to be placed in the jump/call instruction.  */
 680 #define R_MEM_INDIRECT  0x4a
 681
 682 /* This reloc identifies a 16bit pc-relative branch target which was
 683    shortened into an 8bit pc-relative branch target.  */
 684 #define R_PCRWORD_B     0x4b
 685
 686 /* This reloc identifies mov.[wl] instructions with a 32/24 bit
 687    absolute address; the linker may turn this into a mov.[wl]
 688    insn with a 16bit absolute address.  */
 689 #define R_MOVL1         0x4c
 690
 691 /* This reloc identifies mov.[wl] insns which formerly had
 692    a 32/24bit absolute address and now have a 16bit absolute address.  */
 693 #define R_MOVL2         0x4d
 694
 695 /* This reloc identifies a bCC:8 which will have it's condition
 696    inverted and its target redirected to the target of the branch
 697    in the following insn.  */
 698 #define R_BCC_INV       0x4e
 699
 700 /* This reloc identifies a jmp instruction that has been deleted.  */
 701 #define R_JMP_DEL       0x4f
 702
 703 /* Z8k modes */
 704 #define R_IMM16   0x01          /* 16 bit abs */
 705 #define R_JR      0x02          /* jr  8 bit disp */
 706 #define R_IMM4L   0x23          /* low nibble */
 707 #define R_IMM8    0x22          /* 8 bit abs */
 708 #define R_IMM32   R_RELLONG     /* 32 bit abs */
 709 #define R_CALL    R_DA          /* Absolute address which could be a callr */
 710 #define R_JP      R_DA          /* Absolute address which could be a jp */
 711 #define R_REL16   0x04          /* 16 bit PC rel */
 712 #define R_CALLR   0x05          /* callr 12 bit disp */
 713 #define R_SEG     0x10          /* set if in segmented mode */
 714 #define R_IMM4H   0x24          /* high nibble */
 715 #define R_DISP7   0x25          /* djnz displacement */
 716
 717 /* H8500 modes */
 718
 719 #define R_H8500_IMM8    1               /*  8 bit immediate     */
 720 #define R_H8500_IMM16   2               /* 16 bit immediate     */
 721 #define R_H8500_PCREL8  3               /*  8 bit pcrel         */
 722 #define R_H8500_PCREL16 4               /* 16 bit pcrel         */
 723 #define R_H8500_HIGH8   5               /* high 8 bits of 24 bit address */
 724 #define R_H8500_LOW16   7               /* low 16 bits of 24 bit immediate */
 725 #define R_H8500_IMM24   6               /* 24 bit immediate */
 726 #define R_H8500_IMM32   8               /* 32 bit immediate */
 727 #define R_H8500_HIGH16  9               /* high 16 bits of 32 bit immediate */
 728
 729 /* W65 modes */
 730
 731 #define R_W65_ABS8      1  /* addr & 0xff               */
 732 #define R_W65_ABS16     2  /* addr & 0xffff             */
 733 #define R_W65_ABS24     3  /* addr & 0xffffff           */
 734
 735 #define R_W65_ABS8S8    4  /* (addr >> 8) & 0xff        */
 736 #define R_W65_ABS8S16   5  /* (addr >> 16) & 0xff       */
 737
 738 #define R_W65_ABS16S8   6  /* (addr >> 8) & 0ffff       */
 739 #define R_W65_ABS16S16  7  /* (addr >> 16) & 0ffff      */
 740
 741 #define R_W65_PCR8      8
 742 #define R_W65_PCR16     9
 743
 744 #define R_W65_DP       10  /* direct page 8 bits only   */
 745
 746 #endif /* GNU_COFF_INTERNAL_H */