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 1999, 2000, 2001, 2002, 2003, 2004. 2005, 2006
   5    Free Software Foundation, Inc.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
  20
  21 #ifndef GNU_COFF_INTERNAL_H
  22 #define GNU_COFF_INTERNAL_H 1
  23
  24 /* First, make "signed char" work, even on old compilers. */
  25 #ifndef signed
  26 #ifndef __STDC__
  27 #define signed                  /**/
  28 #endif
  29 #endif
  30
  31 /********************** FILE HEADER **********************/
  32
  33 /* extra stuff in a PE header. */
  34
  35 struct internal_extra_pe_filehdr
  36 {
  37   /* DOS header data follows for PE stuff */
  38   unsigned short e_magic;       /* Magic number, 0x5a4d */
  39   unsigned short e_cblp;        /* Bytes on last page of file, 0x90 */
  40   unsigned short e_cp;          /* Pages in file, 0x3 */
  41   unsigned short e_crlc;        /* Relocations, 0x0 */
  42   unsigned short e_cparhdr;     /* Size of header in paragraphs, 0x4 */
  43   unsigned short e_minalloc;    /* Minimum extra paragraphs needed, 0x0 */
  44   unsigned short e_maxalloc;    /* Maximum extra paragraphs needed, 0xFFFF */
  45   unsigned short e_ss;          /* Initial (relative) SS value, 0x0 */
  46   unsigned short e_sp;          /* Initial SP value, 0xb8 */
  47   unsigned short e_csum;        /* Checksum, 0x0 */
  48   unsigned short e_ip;          /* Initial IP value, 0x0 */
  49   unsigned short e_cs;          /* Initial (relative) CS value, 0x0 */
  50   unsigned short e_lfarlc;      /* File address of relocation table, 0x40 */
  51   unsigned short e_ovno;        /* Overlay number, 0x0 */
  52   unsigned short e_res[4];      /* Reserved words, all 0x0 */
  53   unsigned short e_oemid;       /* OEM identifier (for e_oeminfo), 0x0 */
  54   unsigned short e_oeminfo;     /* OEM information; e_oemid specific, 0x0 */
  55   unsigned short e_res2[10];    /* Reserved words, all 0x0 */
  56   bfd_vma  e_lfanew;            /* File address of new exe header, 0x80 */
  57   unsigned long dos_message[16]; /* text which always follows dos header */
  58   bfd_vma  nt_signature;        /* required NT signature, 0x4550 */
  59 };
  60
  61 struct internal_filehdr
  62 {
  63   struct internal_extra_pe_filehdr pe;
  64
  65   /* Standard coff internal info.  */
  66   unsigned short f_magic;       /* magic number                 */
  67   unsigned short f_nscns;       /* number of sections           */
  68   long f_timdat;                /* time & date stamp            */
  69   bfd_vma f_symptr;             /* file pointer to symtab       */
  70   long f_nsyms;                 /* number of symtab entries     */
  71   unsigned short f_opthdr;      /* sizeof(optional hdr)         */
  72   unsigned short f_flags;       /* flags                        */
  73   unsigned short f_target_id;   /* (TI COFF specific)           */
  74 };
  75
  76
  77 /* Bits for f_flags:
  78         F_RELFLG        relocation info stripped from file
  79         F_EXEC          file is executable (no unresolved external references)
  80         F_LNNO          line numbers stripped from file
  81         F_LSYMS         local symbols stripped from file
  82         F_AR16WR        file is 16-bit little-endian
  83         F_AR32WR        file is 32-bit little-endian
  84         F_AR32W         file is 32-bit big-endian
  85         F_DYNLOAD       rs/6000 aix: dynamically loadable w/imports & exports
  86         F_SHROBJ        rs/6000 aix: file is a shared object
  87         F_DLL           PE format DLL.  */
  88
  89 #define F_RELFLG        (0x0001)
  90 #define F_EXEC          (0x0002)
  91 #define F_LNNO          (0x0004)
  92 #define F_LSYMS         (0x0008)
  93 #define F_AR16WR        (0x0080)
  94 #define F_AR32WR        (0x0100)
  95 #define F_AR32W         (0x0200)
  96 #define F_DYNLOAD       (0x1000)
  97 #define F_SHROBJ        (0x2000)
  98 #define F_DLL           (0x2000)
  99
 100 /* Extra structure which is used in the optional header.  */
 101 typedef struct _IMAGE_DATA_DIRECTORY
 102 {
 103   bfd_vma VirtualAddress;
 104   long    Size;
 105 }  IMAGE_DATA_DIRECTORY;
 106 #define IMAGE_NUMBEROF_DIRECTORY_ENTRIES  16
 107
 108 /* Default image base for NT.  */
 109 #define NT_EXE_IMAGE_BASE 0x400000
 110 #define NT_DLL_IMAGE_BASE 0x10000000
 111
 112 /* Default image base for BeOS. */
 113 #define BEOS_EXE_IMAGE_BASE 0x80000000
 114 #define BEOS_DLL_IMAGE_BASE 0x10000000
 115
 116 /* Extra stuff in a PE aouthdr */
 117
 118 #define PE_DEF_SECTION_ALIGNMENT 0x1000
 119 #ifndef PE_DEF_FILE_ALIGNMENT
 120 # define PE_DEF_FILE_ALIGNMENT 0x200
 121 #endif
 122
 123 struct internal_extra_pe_aouthdr
 124 {
 125   /* PE stuff  */
 126   bfd_vma ImageBase;            /* address of specific location in memory that
 127                                    file is located, NT default 0x10000 */
 128
 129   bfd_vma SectionAlignment;     /* section alignment default 0x1000 */
 130   bfd_vma FileAlignment;        /* file alignment default 0x200 */
 131   short   MajorOperatingSystemVersion; /* minimum version of the operating */
 132   short   MinorOperatingSystemVersion; /* system req'd for exe, default to 1*/
 133   short   MajorImageVersion;    /* user defineable field to store version of */
 134   short   MinorImageVersion;    /* exe or dll being created, default to 0 */
 135   short   MajorSubsystemVersion; /* minimum subsystem version required to */
 136   short   MinorSubsystemVersion; /* run exe; default to 3.1 */
 137   long    Reserved1;            /* seems to be 0 */
 138   long    SizeOfImage;          /* size of memory to allocate for prog */
 139   long    SizeOfHeaders;        /* size of PE header and section table */
 140   long    CheckSum;             /* set to 0 */
 141   short   Subsystem;
 142
 143   /* type of subsystem exe uses for user interface,
 144      possible values:
 145      1 - NATIVE   Doesn't require a subsystem
 146      2 - WINDOWS_GUI runs in Windows GUI subsystem
 147      3 - WINDOWS_CUI runs in Windows char sub. (console app)
 148      5 - OS2_CUI runs in OS/2 character subsystem
 149      7 - POSIX_CUI runs in Posix character subsystem */
 150   short   DllCharacteristics;   /* flags for DLL init, use 0 */
 151   bfd_vma SizeOfStackReserve;   /* amount of memory to reserve  */
 152   bfd_vma SizeOfStackCommit;    /* amount of memory initially committed for
 153                                    initial thread's stack, default is 0x1000 */
 154   bfd_vma SizeOfHeapReserve;    /* amount of virtual memory to reserve and */
 155   bfd_vma SizeOfHeapCommit;     /* commit, don't know what to defaut it to */
 156   long    LoaderFlags;          /* can probably set to 0 */
 157   long    NumberOfRvaAndSizes;  /* number of entries in next entry, 16 */
 158   IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES];
 159 };
 160
 161 /********************** AOUT "OPTIONAL HEADER" **********************/
 162 struct internal_aouthdr
 163 {
 164   short magic;                  /* type of file                         */
 165   short vstamp;                 /* version stamp                        */
 166   bfd_vma tsize;                /* text size in bytes, padded to FW bdry*/
 167   bfd_vma dsize;                /* initialized data "  "                */
 168   bfd_vma bsize;                /* uninitialized data "   "             */
 169   bfd_vma entry;                /* entry pt.                            */
 170   bfd_vma text_start;           /* base of text used for this file */
 171   bfd_vma data_start;           /* base of data used for this file */
 172
 173   /* i960 stuff */
 174   unsigned long tagentries;     /* number of tag entries to follow */
 175
 176   /* RS/6000 stuff */
 177   bfd_vma o_toc;                /* address of TOC                       */
 178   short o_snentry;              /* section number for entry point */
 179   short o_sntext;               /* section number for text      */
 180   short o_sndata;               /* section number for data      */
 181   short o_sntoc;                /* section number for toc       */
 182   short o_snloader;             /* section number for loader section */
 183   short o_snbss;                /* section number for bss       */
 184   short o_algntext;             /* max alignment for text       */
 185   short o_algndata;             /* max alignment for data       */
 186   short o_modtype;              /* Module type field, 1R,RE,RO  */
 187   short o_cputype;              /* Encoded CPU type             */
 188   bfd_vma o_maxstack;   /* max stack size allowed.      */
 189   bfd_vma o_maxdata;    /* max data size allowed.       */
 190
 191   /* ECOFF stuff */
 192   bfd_vma bss_start;            /* Base of bss section.         */
 193   bfd_vma gp_value;             /* GP register value.           */
 194   unsigned long gprmask;        /* General registers used.      */
 195   unsigned long cprmask[4];     /* Coprocessor registers used.  */
 196   unsigned long fprmask;        /* Floating pointer registers used.  */
 197
 198   /* Apollo stuff */
 199   long o_inlib;                 /* inlib data */
 200   long o_sri;                   /* Static Resource Information */
 201   long vid[2];                  /* Version id */
 202
 203   struct internal_extra_pe_aouthdr pe;
 204 };
 205
 206 /********************** STORAGE CLASSES **********************/
 207
 208 /* This used to be defined as -1, but now n_sclass is unsigned.  */
 209 #define C_EFCN          0xff    /* physical end of function     */
 210 #define C_NULL          0
 211 #define C_AUTO          1       /* automatic variable           */
 212 #define C_EXT           2       /* external symbol              */
 213 #define C_STAT          3       /* static                       */
 214 #define C_REG           4       /* register variable            */
 215 #define C_EXTDEF        5       /* external definition          */
 216 #define C_LABEL         6       /* label                        */
 217 #define C_ULABEL        7       /* undefined label              */
 218 #define C_MOS           8       /* member of structure          */
 219 #define C_ARG           9       /* function argument            */
 220 #define C_STRTAG        10      /* structure tag                */
 221 #define C_MOU           11      /* member of union              */
 222 #define C_UNTAG         12      /* union tag                    */
 223 #define C_TPDEF         13      /* type definition              */
 224 #define C_USTATIC       14      /* undefined static             */
 225 #define C_ENTAG         15      /* enumeration tag              */
 226 #define C_MOE           16      /* member of enumeration        */
 227 #define C_REGPARM       17      /* register parameter           */
 228 #define C_FIELD         18      /* bit field                    */
 229 #define C_AUTOARG       19      /* auto argument                */
 230 #define C_LASTENT       20      /* dummy entry (end of block)   */
 231 #define C_BLOCK         100     /* ".bb" or ".eb"               */
 232 #define C_FCN           101     /* ".bf" or ".ef"               */
 233 #define C_EOS           102     /* end of structure             */
 234 #define C_FILE          103     /* file name                    */
 235 #define C_LINE          104     /* line # reformatted as symbol table entry */
 236 #define C_ALIAS         105     /* duplicate tag                */
 237 #define C_HIDDEN        106     /* ext symbol in dmert public lib */
 238
 239 #if defined _AIX52 || defined AIX_WEAK_SUPPORT
 240 #define C_WEAKEXT       111     /* weak symbol -- AIX standard.  */
 241 #else
 242 #define C_WEAKEXT       127     /* weak symbol -- GNU extension.  */
 243 #endif
 244
 245 /* New storage classes for TI COFF */
 246 #define C_UEXT          19      /* Tentative external definition */
 247 #define C_STATLAB       20      /* Static load time label */
 248 #define C_EXTLAB        21      /* External load time label */
 249 #define C_SYSTEM        23      /* System Wide variable */
 250
 251 /* New storage classes for WINDOWS_NT   */
 252 #define C_SECTION       104     /* section name */
 253 #define C_NT_WEAK       105     /* weak external */
 254
 255  /* New storage classes for 80960 */
 256
 257 /* C_LEAFPROC is obsolete.  Use C_LEAFEXT or C_LEAFSTAT */
 258 #define C_LEAFPROC      108     /* Leaf procedure, "call" via BAL */
 259
 260 #define C_SCALL         107     /* Procedure reachable via system call */
 261 #define C_LEAFEXT       108     /* External leaf */
 262 #define C_LEAFSTAT      113     /* Static leaf */
 263 #define C_OPTVAR        109     /* Optimized variable           */
 264 #define C_DEFINE        110     /* Preprocessor #define         */
 265 #define C_PRAGMA        111     /* Advice to compiler or linker */
 266 #define C_SEGMENT       112     /* 80960 segment name           */
 267
 268   /* Storage classes for m88k */
 269 #define C_SHADOW        107     /* shadow symbol                */
 270 #define C_VERSION       108     /* coff version symbol          */
 271
 272  /* New storage classes for RS/6000 */
 273 #define C_HIDEXT        107     /* Un-named external symbol */
 274 #define C_BINCL         108     /* Marks beginning of include file */
 275 #define C_EINCL         109     /* Marks ending of include file */
 276
 277  /* storage classes for stab symbols for RS/6000 */
 278 #define C_GSYM          (0x80)
 279 #define C_LSYM          (0x81)
 280 #define C_PSYM          (0x82)
 281 #define C_RSYM          (0x83)
 282 #define C_RPSYM         (0x84)
 283 #define C_STSYM         (0x85)
 284 #define C_TCSYM         (0x86)
 285 #define C_BCOMM         (0x87)
 286 #define C_ECOML         (0x88)
 287 #define C_ECOMM         (0x89)
 288 #define C_DECL          (0x8c)
 289 #define C_ENTRY         (0x8d)
 290 #define C_FUN           (0x8e)
 291 #define C_BSTAT         (0x8f)
 292 #define C_ESTAT         (0x90)
 293
 294 /* Storage classes for Thumb symbols */
 295 #define C_THUMBEXT      (128 + C_EXT)           /* 130 */
 296 #define C_THUMBSTAT     (128 + C_STAT)          /* 131 */
 297 #define C_THUMBLABEL    (128 + C_LABEL)         /* 134 */
 298 #define C_THUMBEXTFUNC  (C_THUMBEXT  + 20)      /* 150 */
 299 #define C_THUMBSTATFUNC (C_THUMBSTAT + 20)      /* 151 */
 300
 301 /********************** SECTION HEADER **********************/
 302
 303 #define SCNNMLEN (8)
 304
 305 struct internal_scnhdr
 306 {
 307   char s_name[SCNNMLEN];        /* section name                 */
 308
 309   /* Physical address, aliased s_nlib.
 310      In the pei format, this field is the virtual section size
 311      (the size of the section after being loaded int memory),
 312      NOT the physical address.  */
 313   bfd_vma s_paddr;
 314
 315   bfd_vma s_vaddr;              /* virtual address              */
 316   bfd_vma s_size;               /* section size                 */
 317   bfd_vma s_scnptr;             /* file ptr to raw data for section */
 318   bfd_vma s_relptr;             /* file ptr to relocation       */
 319   bfd_vma s_lnnoptr;            /* file ptr to line numbers     */
 320   unsigned long s_nreloc;       /* number of relocation entries */
 321   unsigned long s_nlnno;        /* number of line number entries*/
 322   long s_flags;                 /* flags                        */
 323   long s_align;                 /* used on I960                 */
 324   unsigned char s_page;         /* TI COFF load page            */
 325 };
 326
 327 /* s_flags "type".  */
 328 #define STYP_REG         (0x0000)       /* "regular": allocated, relocated, loaded */
 329 #define STYP_DSECT       (0x0001)       /* "dummy":  relocated only*/
 330 #define STYP_NOLOAD      (0x0002)       /* "noload": allocated, relocated, not loaded */
 331 #define STYP_GROUP       (0x0004)       /* "grouped": formed of input sections */
 332 #define STYP_PAD         (0x0008)       /* "padding": not allocated, not relocated, loaded */
 333 #define STYP_COPY        (0x0010)       /* "copy": for decision function used by field update;  not allocated, not relocated,
 334                                                                              loaded; reloc & lineno entries processed normally */
 335 #define STYP_TEXT        (0x0020)       /* section contains text only */
 336 #define S_SHRSEG         (0x0020)       /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile
 337                                                                              will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will
 338                                                                              update all process invocations. */
 339 #define STYP_DATA        (0x0040)       /* section contains data only */
 340 #define STYP_BSS         (0x0080)       /* section contains bss only */
 341 #define S_NEWFCN         (0x0100)       /* In a minimal file or an update file, a new function (as compared with a replaced function) */
 342 #define STYP_INFO        (0x0200)       /* comment: not allocated not relocated, not loaded */
 343 #define STYP_OVER        (0x0400)       /* overlay: relocated not allocated or loaded */
 344 #define STYP_LIB         (0x0800)       /* for .lib: same as INFO */
 345 #define STYP_MERGE       (0x2000)       /* merge section -- combines with text, data or bss sections only */
 346 #define STYP_REVERSE_PAD (0x4000)       /* section will be padded with no-op instructions
 347                                            wherever padding is necessary and there is a
 348                                            word of contiguous bytes beginning on a word
 349                                            boundary. */
 350
 351 #define STYP_LIT        0x8020  /* Literal data (like STYP_TEXT) */
 352
 353
 354 /********************** LINE NUMBERS **********************/
 355
 356 /* 1 line number entry for every "breakpointable" source line in a section.
 357    Line numbers are grouped on a per function basis; first entry in a function
 358    grouping will have l_lnno = 0 and in place of physical address will be the
 359    symbol table index of the function name.  */
 360
 361 struct internal_lineno
 362 {
 363   union
 364   {
 365     bfd_signed_vma l_symndx;            /* function name symbol index, iff l_lnno == 0*/
 366     bfd_signed_vma l_paddr;             /* (physical) address of line number    */
 367   }     l_addr;
 368   unsigned long l_lnno;         /* line number          */
 369 };
 370
 371 /********************** SYMBOLS **********************/
 372
 373 #define SYMNMLEN        8       /* # characters in a symbol name        */
 374 #define FILNMLEN        14      /* # characters in a file name          */
 375 #define DIMNUM          4       /* # array dimensions in auxiliary entry */
 376
 377 struct internal_syment
 378 {
 379   union
 380   {
 381     char _n_name[SYMNMLEN];     /* old COFF version     */
 382     struct
 383     {
 384       long _n_zeroes;           /* new == 0             */
 385       long _n_offset;           /* offset into string table */
 386     }      _n_n;
 387     char *_n_nptr[2];           /* allows for overlaying        */
 388   }     _n;
 389   bfd_vma n_value;                      /* value of symbol              */
 390   short n_scnum;                /* section number               */
 391   unsigned short n_flags;       /* copy of flags from filhdr    */
 392   unsigned short n_type;        /* type and derived type        */
 393   unsigned char n_sclass;       /* storage class                */
 394   unsigned char n_numaux;       /* number of aux. entries       */
 395 };
 396
 397 #define n_name          _n._n_name
 398 #define n_zeroes        _n._n_n._n_zeroes
 399 #define n_offset        _n._n_n._n_offset
 400
 401 /* Relocatable symbols have number of the section in which they are defined,
 402    or one of the following:  */
 403
 404 #define N_UNDEF ((short)0)      /* undefined symbol */
 405 #define N_ABS   ((short)-1)     /* value of symbol is absolute */
 406 #define N_DEBUG ((short)-2)     /* debugging symbol -- value is meaningless */
 407 #define N_TV    ((short)-3)     /* indicates symbol needs preload transfer vector */
 408 #define P_TV    ((short)-4)     /* indicates symbol needs postload transfer vector*/
 409
 410 /* Type of a symbol, in low N bits of the word.  */
 411
 412 #define T_NULL          0
 413 #define T_VOID          1       /* function argument (only used by compiler) */
 414 #define T_CHAR          2       /* character            */
 415 #define T_SHORT         3       /* short integer        */
 416 #define T_INT           4       /* integer              */
 417 #define T_LONG          5       /* long integer         */
 418 #define T_FLOAT         6       /* floating point       */
 419 #define T_DOUBLE        7       /* double word          */
 420 #define T_STRUCT        8       /* structure            */
 421 #define T_UNION         9       /* union                */
 422 #define T_ENUM          10      /* enumeration          */
 423 #define T_MOE           11      /* member of enumeration*/
 424 #define T_UCHAR         12      /* unsigned character   */
 425 #define T_USHORT        13      /* unsigned short       */
 426 #define T_UINT          14      /* unsigned integer     */
 427 #define T_ULONG         15      /* unsigned long        */
 428 #define T_LNGDBL        16      /* long double          */
 429
 430 /* Derived types, in n_type.  */
 431
 432 #define DT_NON          (0)     /* no derived type */
 433 #define DT_PTR          (1)     /* pointer */
 434 #define DT_FCN          (2)     /* function */
 435 #define DT_ARY          (3)     /* array */
 436
 437 #define BTYPE(x)        ((x) & N_BTMASK)
 438 #define DTYPE(x)        (((x) & N_TMASK) >> N_BTSHFT)
 439
 440 #define ISPTR(x) \
 441   (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_PTR << N_BTSHFT))
 442 #define ISFCN(x) \
 443   (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_FCN << N_BTSHFT))
 444 #define ISARY(x) \
 445   (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_ARY << N_BTSHFT))
 446 #define ISTAG(x) \
 447   ((x) == C_STRTAG || (x) == C_UNTAG || (x) == C_ENTAG)
 448 #define DECREF(x) \
 449   ((((x) >> N_TSHIFT) & ~ N_BTMASK) | ((x) & N_BTMASK))
 450
 451 union internal_auxent
 452 {
 453   struct
 454   {
 455
 456     union
 457     {
 458       long l;                   /* str, un, or enum tag indx */
 459       struct coff_ptr_struct *p;
 460     }     x_tagndx;
 461
 462     union
 463     {
 464       struct
 465       {
 466         unsigned short x_lnno;  /* declaration line number */
 467         unsigned short x_size;  /* str/union/array size */
 468       }      x_lnsz;
 469       long x_fsize;             /* size of function */
 470     }     x_misc;
 471
 472     union
 473     {
 474       struct
 475       {                         /* if ISFCN, tag, or .bb */
 476         bfd_signed_vma x_lnnoptr;               /* ptr to fcn line # */
 477         union
 478         {                       /* entry ndx past block end */
 479           long l;
 480           struct coff_ptr_struct *p;
 481         }     x_endndx;
 482       }      x_fcn;
 483
 484       struct
 485       {                         /* if ISARY, up to 4 dimen. */
 486         unsigned short x_dimen[DIMNUM];
 487       }      x_ary;
 488     }     x_fcnary;
 489
 490     unsigned short x_tvndx;     /* tv index */
 491   }      x_sym;
 492
 493   union
 494   {
 495     char x_fname[FILNMLEN];
 496     struct
 497     {
 498       long x_zeroes;
 499       long x_offset;
 500     }      x_n;
 501   }     x_file;
 502
 503   struct
 504   {
 505     long x_scnlen;              /* section length */
 506     unsigned short x_nreloc;    /* # relocation entries */
 507     unsigned short x_nlinno;    /* # line numbers */
 508     unsigned long x_checksum;   /* section COMDAT checksum for PE */
 509     unsigned short x_associated; /* COMDAT associated section index for PE */
 510     unsigned char x_comdat;     /* COMDAT selection number for PE */
 511   }      x_scn;
 512
 513   struct
 514   {
 515     long x_tvfill;              /* tv fill value */
 516     unsigned short x_tvlen;     /* length of .tv */
 517     unsigned short x_tvran[2];  /* tv range */
 518   }      x_tv;                  /* info about .tv section (in auxent of symbol .tv)) */
 519
 520   /******************************************
 521    * RS/6000-specific auxent - last auxent for every external symbol
 522    ******************************************/
 523   struct
 524   {
 525     union
 526       {                         /* csect length or enclosing csect */
 527         bfd_signed_vma l;
 528         struct coff_ptr_struct *p;
 529       } x_scnlen;
 530     long x_parmhash;            /* parm type hash index */
 531     unsigned short x_snhash;    /* sect num with parm hash */
 532     unsigned char x_smtyp;      /* symbol align and type */
 533     /* 0-4 - Log 2 of alignment */
 534     /* 5-7 - symbol type */
 535     unsigned char x_smclas;     /* storage mapping class */
 536     long x_stab;                /* dbx stab info index */
 537     unsigned short x_snstab;    /* sect num with dbx stab */
 538   }      x_csect;               /* csect definition information */
 539
 540 /* x_smtyp values:  */
 541
 542 #define SMTYP_ALIGN(x)  ((x) >> 3)      /* log2 of alignment */
 543 #define SMTYP_SMTYP(x)  ((x) & 0x7)     /* symbol type */
 544 /* Symbol type values:  */
 545 #define XTY_ER  0               /* External reference */
 546 #define XTY_SD  1               /* Csect definition */
 547 #define XTY_LD  2               /* Label definition */
 548 #define XTY_CM  3               /* .BSS */
 549 #define XTY_EM  4               /* Error message */
 550 #define XTY_US  5               /* "Reserved for internal use" */
 551
 552 /* x_smclas values:  */
 553
 554 #define XMC_PR  0               /* Read-only program code */
 555 #define XMC_RO  1               /* Read-only constant */
 556 #define XMC_DB  2               /* Read-only debug dictionary table */
 557 #define XMC_TC  3               /* Read-write general TOC entry */
 558 #define XMC_UA  4               /* Read-write unclassified */
 559 #define XMC_RW  5               /* Read-write data */
 560 #define XMC_GL  6               /* Read-only global linkage */
 561 #define XMC_XO  7               /* Read-only extended operation */
 562 #define XMC_SV  8               /* Read-only supervisor call */
 563 #define XMC_BS  9               /* Read-write BSS */
 564 #define XMC_DS  10              /* Read-write descriptor csect */
 565 #define XMC_UC  11              /* Read-write unnamed Fortran common */
 566 #define XMC_TI  12              /* Read-only traceback index csect */
 567 #define XMC_TB  13              /* Read-only traceback table csect */
 568 /*              14      ??? */
 569 #define XMC_TC0 15              /* Read-write TOC anchor */
 570 #define XMC_TD  16              /* Read-write data in TOC */
 571
 572   /******************************************
 573    *  I960-specific *2nd* aux. entry formats
 574    ******************************************/
 575   struct
 576   {
 577     /* This is a very old typo that keeps getting propagated. */
 578 #define x_stdindx x_stindx
 579     long x_stindx;              /* sys. table entry */
 580   }      x_sc;                  /* system call entry */
 581
 582   struct
 583   {
 584     unsigned long x_balntry;    /* BAL entry point */
 585   }      x_bal;                 /* BAL-callable function */
 586
 587   struct
 588   {
 589     unsigned long x_timestamp;  /* time stamp */
 590     char x_idstring[20];        /* producer identity string */
 591   }      x_ident;               /* Producer ident info */
 592
 593 };
 594
 595 /********************** RELOCATION DIRECTIVES **********************/
 596
 597 struct internal_reloc
 598 {
 599   bfd_vma r_vaddr;              /* Virtual address of reference */
 600   long r_symndx;                /* Index into symbol table      */
 601   unsigned short r_type;        /* Relocation type              */
 602   unsigned char r_size;         /* Used by RS/6000 and ECOFF    */
 603   unsigned char r_extern;       /* Used by ECOFF                */
 604   unsigned long r_offset;       /* Used by Alpha ECOFF, SPARC, others */
 605 };
 606
 607 /* X86-64 relocations.  */
 608 #define R_AMD64_ABS              0 /* Reference is absolute, no relocation is necessary.  */
 609 #define R_AMD64_DIR64            1 /* 64-bit address (VA).  */
 610 #define R_AMD64_DIR32            2 /* 32-bit address (VA) R_DIR32.  */
 611 #define R_AMD64_IMAGEBASE        3 /* 32-bit absolute ref w/o base R_IMAGEBASE.  */
 612 #define R_AMD64_PCRLONG          4 /* 32-bit relative address from byte following reloc R_PCRLONG.  */
 613 #define R_AMD64_PCRLONG_1        5 /* 32-bit relative address from byte distance 1 from reloc.  */
 614 #define R_AMD64_PCRLONG_2        6 /* 32-bit relative address from byte distance 2 from reloc.  */
 615 #define R_AMD64_PCRLONG_3        7 /* 32-bit relative address from byte distance 3 from reloc.  */
 616 #define R_AMD64_PCRLONG_4        8 /* 32-bit relative address from byte distance 4 from reloc.  */
 617 #define R_AMD64_PCRLONG_5        9 /* 32-bit relative address from byte distance 5 from reloc.  */
 618 #define R_AMD64_SECTION         10 /* Section index.  */
 619 #define R_AMD64_SECREL          11 /* 32 bit offset from base of section containing target R_SECREL.  */
 620 #define R_AMD64_SECREL7         12 /* 7 bit unsigned offset from base of section containing target.  */
 621 #define R_AMD64_TOKEN           13 /* 32 bit metadata token.  */
 622 #define R_AMD64_PCRQUAD         14 /* Pseude PC64 relocation - Note: not specified by MS/AMD but need for gas pc-relative 64bit wide relocation generated by ELF.  */
 623
 624 /* i386 Relocations.  */
 625
 626 #define R_DIR16          1
 627 #define R_REL24          5
 628 #define R_DIR32          6
 629 #define R_IMAGEBASE      7
 630 #define R_SECREL32      11
 631 #define R_RELBYTE       15
 632 #define R_RELWORD       16
 633 #define R_RELLONG       17
 634 #define R_PCRBYTE       18
 635 #define R_PCRWORD       19
 636 #define R_PCRLONG       20
 637 #define R_PCR24         21
 638 #define R_IPRSHORT      24
 639 #define R_IPRLONG       26
 640 #define R_GETSEG        29
 641 #define R_GETPA         30
 642 #define R_TAGWORD       31
 643 #define R_JUMPTARG      32      /* strange 29k 00xx00xx reloc */
 644 #define R_PARTLS16      32
 645 #define R_PARTMS8       33
 646
 647 #define R_PCR16L       128
 648 #define R_PCR26L       129
 649 #define R_VRT16        130
 650 #define R_HVRT16       131
 651 #define R_LVRT16       132
 652 #define R_VRT32        133
 653
 654
 655 /* This reloc identifies mov.b instructions with a 16bit absolute
 656    address.  The linker tries to turn insns with this reloc into
 657    an absolute 8-bit address.  */
 658 #define R_MOV16B1       0x41
 659
 660 /* This reloc identifies mov.b instructions which had a 16bit
 661    absolute address which have been shortened into a 8-bit
 662    absolute address.  */
 663 #define R_MOV16B2       0x42
 664
 665 /* This reloc identifies jmp insns with a 16bit target address;
 666    the linker tries to turn these insns into bra insns with
 667    an 8bit pc-relative target.  */
 668 #define R_JMP1          0x43
 669
 670 /* This reloc identifies a bra with an 8-bit pc-relative
 671    target that was formerly a jmp insn with a 16bit target.  */
 672 #define R_JMP2          0x44
 673
 674 /* ??? */
 675 #define R_RELLONG_NEG   0x45
 676
 677 /* This reloc identifies jmp insns with a 24bit target address;
 678    the linker tries to turn these insns into bra insns with
 679    an 8bit pc-relative target.  */
 680 #define R_JMPL1         0x46
 681
 682 /* This reloc identifies a bra with an 8-bit pc-relative
 683    target that was formerly a jmp insn with a 24bit target.  */
 684 #define R_JMPL2         0x47
 685
 686 /* This reloc identifies mov.b instructions with a 24bit absolute
 687    address.  The linker tries to turn insns with this reloc into
 688    an absolute 8-bit address.  */
 689
 690 #define R_MOV24B1       0x48
 691
 692 /* This reloc identifies mov.b instructions which had a 24bit
 693    absolute address which have been shortened into a 8-bit
 694    absolute address.  */
 695 #define R_MOV24B2       0x49
 696
 697 /* An h8300 memory indirect jump/call.  Forces the address of the jump/call
 698    target into the function vector (in page zero), and the address of the
 699    vector entry to be placed in the jump/call instruction.  */
 700 #define R_MEM_INDIRECT  0x4a
 701
 702 /* This reloc identifies a 16bit pc-relative branch target which was
 703    shortened into an 8bit pc-relative branch target.  */
 704 #define R_PCRWORD_B     0x4b
 705
 706 /* This reloc identifies mov.[wl] instructions with a 32/24 bit
 707    absolute address; the linker may turn this into a mov.[wl]
 708    insn with a 16bit absolute address.  */
 709 #define R_MOVL1         0x4c
 710
 711 /* This reloc identifies mov.[wl] insns which formerly had
 712    a 32/24bit absolute address and now have a 16bit absolute address.  */
 713 #define R_MOVL2         0x4d
 714
 715 /* This reloc identifies a bCC:8 which will have it's condition
 716    inverted and its target redirected to the target of the branch
 717    in the following insn.  */
 718 #define R_BCC_INV       0x4e
 719
 720 /* This reloc identifies a jmp instruction that has been deleted.  */
 721 #define R_JMP_DEL       0x4f
 722
 723 /* Z8k modes */
 724 #define R_IMM16   0x01          /* 16 bit abs */
 725 #define R_JR      0x02          /* jr  8 bit disp */
 726 #define R_IMM4L   0x23          /* low nibble */
 727 #define R_IMM8    0x22          /* 8 bit abs */
 728 #define R_IMM32   R_RELLONG     /* 32 bit abs */
 729 #define R_CALL    R_DA          /* Absolute address which could be a callr */
 730 #define R_JP      R_DA          /* Absolute address which could be a jp */
 731 #define R_REL16   0x04          /* 16 bit PC rel */
 732 #define R_CALLR   0x05          /* callr 12 bit disp */
 733 #define R_SEG     0x10          /* set if in segmented mode */
 734 #define R_IMM4H   0x24          /* high nibble */
 735 #define R_DISP7   0x25          /* djnz displacement */
 736
 737 /* Z80 modes */
 738 #define R_OFF8    0x32          /* 8 bit signed abs, for (i[xy]+d) */
 739 #define R_IMM24   0x33          /* 24 bit abs */
 740 /* R_JR, R_IMM8, R_IMM16, R_IMM32 - as for Z8k */
 741
 742 /* H8500 modes */
 743
 744 #define R_H8500_IMM8    1               /*  8 bit immediate     */
 745 #define R_H8500_IMM16   2               /* 16 bit immediate     */
 746 #define R_H8500_PCREL8  3               /*  8 bit pcrel         */
 747 #define R_H8500_PCREL16 4               /* 16 bit pcrel         */
 748 #define R_H8500_HIGH8   5               /* high 8 bits of 24 bit address */
 749 #define R_H8500_LOW16   7               /* low 16 bits of 24 bit immediate */
 750 #define R_H8500_IMM24   6               /* 24 bit immediate */
 751 #define R_H8500_IMM32   8               /* 32 bit immediate */
 752 #define R_H8500_HIGH16  9               /* high 16 bits of 32 bit immediate */
 753
 754 /* W65 modes */
 755
 756 #define R_W65_ABS8      1  /* addr & 0xff               */
 757 #define R_W65_ABS16     2  /* addr & 0xffff             */
 758 #define R_W65_ABS24     3  /* addr & 0xffffff           */
 759
 760 #define R_W65_ABS8S8    4  /* (addr >> 8) & 0xff        */
 761 #define R_W65_ABS8S16   5  /* (addr >> 16) & 0xff       */
 762
 763 #define R_W65_ABS16S8   6  /* (addr >> 8) & 0ffff       */
 764 #define R_W65_ABS16S16  7  /* (addr >> 16) & 0ffff      */
 765
 766 #define R_W65_PCR8      8
 767 #define R_W65_PCR16     9
 768
 769 #define R_W65_DP       10  /* direct page 8 bits only   */
 770
 771 #endif /* GNU_COFF_INTERNAL_H */