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, 2007, 2009,
   5    2010  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 3 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,
  20    MA 02110-1301, USA.  */
  21
  22 #ifndef GNU_COFF_INTERNAL_H
  23 #define GNU_COFF_INTERNAL_H 1
  24
  25 /* First, make "signed char" work, even on old compilers. */
  26 #ifndef signed
  27 #ifndef __STDC__
  28 #define signed                  /**/
  29 #endif
  30 #endif
  31
  32 /********************** FILE HEADER **********************/
  33
  34 /* extra stuff in a PE header. */
  35
  36 struct internal_extra_pe_filehdr
  37 {
  38   /* DOS header data follows for PE stuff */
  39   unsigned short e_magic;       /* Magic number, 0x5a4d */
  40   unsigned short e_cblp;        /* Bytes on last page of file, 0x90 */
  41   unsigned short e_cp;          /* Pages in file, 0x3 */
  42   unsigned short e_crlc;        /* Relocations, 0x0 */
  43   unsigned short e_cparhdr;     /* Size of header in paragraphs, 0x4 */
  44   unsigned short e_minalloc;    /* Minimum extra paragraphs needed, 0x0 */
  45   unsigned short e_maxalloc;    /* Maximum extra paragraphs needed, 0xFFFF */
  46   unsigned short e_ss;          /* Initial (relative) SS value, 0x0 */
  47   unsigned short e_sp;          /* Initial SP value, 0xb8 */
  48   unsigned short e_csum;        /* Checksum, 0x0 */
  49   unsigned short e_ip;          /* Initial IP value, 0x0 */
  50   unsigned short e_cs;          /* Initial (relative) CS value, 0x0 */
  51   unsigned short e_lfarlc;      /* File address of relocation table, 0x40 */
  52   unsigned short e_ovno;        /* Overlay number, 0x0 */
  53   unsigned short e_res[4];      /* Reserved words, all 0x0 */
  54   unsigned short e_oemid;       /* OEM identifier (for e_oeminfo), 0x0 */
  55   unsigned short e_oeminfo;     /* OEM information; e_oemid specific, 0x0 */
  56   unsigned short e_res2[10];    /* Reserved words, all 0x0 */
  57   bfd_vma  e_lfanew;            /* File address of new exe header, 0x80 */
  58   unsigned long dos_message[16]; /* text which always follows dos header */
  59   bfd_vma  nt_signature;        /* required NT signature, 0x4550 */
  60 };
  61
  62 #define GO32_STUBSIZE 2048
  63
  64 struct internal_filehdr
  65 {
  66   struct internal_extra_pe_filehdr pe;
  67
  68   /* coff-stgo32 EXE stub header before BFD tdata has been allocated.
  69      Its data is kept in INTERNAL_FILEHDR.GO32STUB afterwards.
  70
  71      F_GO32STUB is set iff go32stub contains a valid data.  Artifical headers
  72      created in BFD have no pre-set go32stub.  */
  73   char go32stub[GO32_STUBSIZE];
  74
  75   /* Standard coff internal info.  */
  76   unsigned short f_magic;       /* magic number                 */
  77   unsigned short f_nscns;       /* number of sections           */
  78   long f_timdat;                /* time & date stamp            */
  79   bfd_vma f_symptr;             /* file pointer to symtab       */
  80   long f_nsyms;                 /* number of symtab entries     */
  81   unsigned short f_opthdr;      /* sizeof(optional hdr)         */
  82   unsigned short f_flags;       /* flags                        */
  83   unsigned short f_target_id;   /* (TI COFF specific)           */
  84 };
  85
  86
  87 /* Bits for f_flags:
  88         F_RELFLG        relocation info stripped from file
  89         F_EXEC          file is executable (no unresolved external references)
  90         F_LNNO          line numbers stripped from file
  91         F_LSYMS         local symbols stripped from file
  92         F_AR16WR        file is 16-bit little-endian
  93         F_AR32WR        file is 32-bit little-endian
  94         F_AR32W         file is 32-bit big-endian
  95         F_DYNLOAD       rs/6000 aix: dynamically loadable w/imports & exports
  96         F_SHROBJ        rs/6000 aix: file is a shared object
  97         F_DLL           PE format DLL
  98         F_GO32STUB      Field go32stub contains valid data.  */
  99
 100 #define F_RELFLG        (0x0001)
 101 #define F_EXEC          (0x0002)
 102 #define F_LNNO          (0x0004)
 103 #define F_LSYMS         (0x0008)
 104 #define F_AR16WR        (0x0080)
 105 #define F_AR32WR        (0x0100)
 106 #define F_AR32W         (0x0200)
 107 #define F_DYNLOAD       (0x1000)
 108 #define F_SHROBJ        (0x2000)
 109 #define F_DLL           (0x2000)
 110 #define F_GO32STUB      (0x4000)
 111
 112 /* Extra structure which is used in the optional header.  */
 113 typedef struct _IMAGE_DATA_DIRECTORY
 114 {
 115   bfd_vma VirtualAddress;
 116   long    Size;
 117 }  IMAGE_DATA_DIRECTORY;
 118 #define PE_EXPORT_TABLE                 0
 119 #define PE_IMPORT_TABLE                 1
 120 #define PE_RESOURCE_TABLE               2
 121 #define PE_EXCEPTION_TABLE              3
 122 #define PE_CERTIFICATE_TABLE            4
 123 #define PE_BASE_RELOCATION_TABLE        5
 124 #define PE_DEBUG_DATA                   6
 125 #define PE_ARCHITECTURE                 7
 126 #define PE_GLOBAL_PTR                   8
 127 #define PE_TLS_TABLE                    9
 128 #define PE_LOAD_CONFIG_TABLE            10
 129 #define PE_BOUND_IMPORT_TABLE           11
 130 #define PE_IMPORT_ADDRESS_TABLE         12
 131 #define PE_DELAY_IMPORT_DESCRIPTOR      13
 132 #define PE_CLR_RUNTIME_HEADER           14
 133 /* DataDirectory[15] is currently reserved, so no define. */
 134 #define IMAGE_NUMBEROF_DIRECTORY_ENTRIES  16
 135
 136 /* Default image base for NT.  */
 137 #define NT_EXE_IMAGE_BASE 0x400000
 138 #define NT_DLL_IMAGE_BASE 0x10000000
 139
 140 /* Default image base for BeOS. */
 141 #define BEOS_EXE_IMAGE_BASE 0x80000000
 142 #define BEOS_DLL_IMAGE_BASE 0x10000000
 143
 144 /* Extra stuff in a PE aouthdr */
 145
 146 #define PE_DEF_SECTION_ALIGNMENT 0x1000
 147 #ifndef PE_DEF_FILE_ALIGNMENT
 148 # define PE_DEF_FILE_ALIGNMENT 0x200
 149 #endif
 150
 151 struct internal_extra_pe_aouthdr
 152 {
 153   /* FIXME: The following entries are in AOUTHDR.  But they aren't
 154      available internally in bfd.  We add them here so that objdump
 155      can dump them.  */
 156   /* The state of the image file  */
 157   short Magic;
 158   /* Linker major version number */
 159   char MajorLinkerVersion;
 160   /* Linker minor version number  */
 161   char MinorLinkerVersion;
 162   /* Total size of all code sections  */
 163   long SizeOfCode;
 164   /* Total size of all initialized data sections  */
 165   long SizeOfInitializedData;
 166   /* Total size of all uninitialized data sections  */
 167   long SizeOfUninitializedData;
 168   /* Address of entry point relative to image base.  */
 169   bfd_vma AddressOfEntryPoint;
 170   /* Address of the first code section relative to image base.  */
 171   bfd_vma BaseOfCode;
 172   /* Address of the first data section relative to image base.  */
 173   bfd_vma BaseOfData;
 174
 175   /* PE stuff  */
 176   bfd_vma ImageBase;            /* address of specific location in memory that
 177                                    file is located, NT default 0x10000 */
 178
 179   bfd_vma SectionAlignment;     /* section alignment default 0x1000 */
 180   bfd_vma FileAlignment;        /* file alignment default 0x200 */
 181   short   MajorOperatingSystemVersion; /* minimum version of the operating */
 182   short   MinorOperatingSystemVersion; /* system req'd for exe, default to 1*/
 183   short   MajorImageVersion;    /* user defineable field to store version of */
 184   short   MinorImageVersion;    /* exe or dll being created, default to 0 */
 185   short   MajorSubsystemVersion; /* minimum subsystem version required to */
 186   short   MinorSubsystemVersion; /* run exe; default to 3.1 */
 187   long    Reserved1;            /* seems to be 0 */
 188   long    SizeOfImage;          /* size of memory to allocate for prog */
 189   long    SizeOfHeaders;        /* size of PE header and section table */
 190   long    CheckSum;             /* set to 0 */
 191   short   Subsystem;
 192
 193   /* type of subsystem exe uses for user interface,
 194      possible values:
 195      1 - NATIVE   Doesn't require a subsystem
 196      2 - WINDOWS_GUI runs in Windows GUI subsystem
 197      3 - WINDOWS_CUI runs in Windows char sub. (console app)
 198      5 - OS2_CUI runs in OS/2 character subsystem
 199      7 - POSIX_CUI runs in Posix character subsystem */
 200   unsigned short DllCharacteristics; /* flags for DLL init  */
 201   bfd_vma SizeOfStackReserve;   /* amount of memory to reserve  */
 202   bfd_vma SizeOfStackCommit;    /* amount of memory initially committed for
 203                                    initial thread's stack, default is 0x1000 */
 204   bfd_vma SizeOfHeapReserve;    /* amount of virtual memory to reserve and */
 205   bfd_vma SizeOfHeapCommit;     /* commit, don't know what to defaut it to */
 206   long    LoaderFlags;          /* can probably set to 0 */
 207   long    NumberOfRvaAndSizes;  /* number of entries in next entry, 16 */
 208   IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES];
 209 };
 210
 211 /********************** AOUT "OPTIONAL HEADER" **********************/
 212 struct internal_aouthdr
 213 {
 214   short magic;                  /* type of file                         */
 215   short vstamp;                 /* version stamp                        */
 216   bfd_vma tsize;                /* text size in bytes, padded to FW bdry*/
 217   bfd_vma dsize;                /* initialized data "  "                */
 218   bfd_vma bsize;                /* uninitialized data "   "             */
 219   bfd_vma entry;                /* entry pt.                            */
 220   bfd_vma text_start;           /* base of text used for this file */
 221   bfd_vma data_start;           /* base of data used for this file */
 222
 223   /* i960 stuff */
 224   unsigned long tagentries;     /* number of tag entries to follow */
 225
 226   /* RS/6000 stuff */
 227   bfd_vma o_toc;                /* address of TOC                       */
 228   short o_snentry;              /* section number for entry point */
 229   short o_sntext;               /* section number for text      */
 230   short o_sndata;               /* section number for data      */
 231   short o_sntoc;                /* section number for toc       */
 232   short o_snloader;             /* section number for loader section */
 233   short o_snbss;                /* section number for bss       */
 234   short o_algntext;             /* max alignment for text       */
 235   short o_algndata;             /* max alignment for data       */
 236   short o_modtype;              /* Module type field, 1R,RE,RO  */
 237   short o_cputype;              /* Encoded CPU type             */
 238   bfd_vma o_maxstack;   /* max stack size allowed.      */
 239   bfd_vma o_maxdata;    /* max data size allowed.       */
 240
 241   /* ECOFF stuff */
 242   bfd_vma bss_start;            /* Base of bss section.         */
 243   bfd_vma gp_value;             /* GP register value.           */
 244   unsigned long gprmask;        /* General registers used.      */
 245   unsigned long cprmask[4];     /* Coprocessor registers used.  */
 246   unsigned long fprmask;        /* Floating pointer registers used.  */
 247
 248   /* Apollo stuff */
 249   long o_inlib;                 /* inlib data */
 250   long o_sri;                   /* Static Resource Information */
 251   long vid[2];                  /* Version id */
 252
 253   struct internal_extra_pe_aouthdr pe;
 254 };
 255
 256 /********************** STORAGE CLASSES **********************/
 257
 258 /* This used to be defined as -1, but now n_sclass is unsigned.  */
 259 #define C_EFCN          0xff    /* physical end of function     */
 260 #define C_NULL          0
 261 #define C_AUTO          1       /* automatic variable           */
 262 #define C_EXT           2       /* external symbol              */
 263 #define C_STAT          3       /* static                       */
 264 #define C_REG           4       /* register variable            */
 265 #define C_EXTDEF        5       /* external definition          */
 266 #define C_LABEL         6       /* label                        */
 267 #define C_ULABEL        7       /* undefined label              */
 268 #define C_MOS           8       /* member of structure          */
 269 #define C_ARG           9       /* function argument            */
 270 #define C_STRTAG        10      /* structure tag                */
 271 #define C_MOU           11      /* member of union              */
 272 #define C_UNTAG         12      /* union tag                    */
 273 #define C_TPDEF         13      /* type definition              */
 274 #define C_USTATIC       14      /* undefined static             */
 275 #define C_ENTAG         15      /* enumeration tag              */
 276 #define C_MOE           16      /* member of enumeration        */
 277 #define C_REGPARM       17      /* register parameter           */
 278 #define C_FIELD         18      /* bit field                    */
 279 #define C_AUTOARG       19      /* auto argument                */
 280 #define C_LASTENT       20      /* dummy entry (end of block)   */
 281 #define C_BLOCK         100     /* ".bb" or ".eb"               */
 282 #define C_FCN           101     /* ".bf" or ".ef"               */
 283 #define C_EOS           102     /* end of structure             */
 284 #define C_FILE          103     /* file name                    */
 285 #define C_LINE          104     /* line # reformatted as symbol table entry */
 286 #define C_ALIAS         105     /* duplicate tag                */
 287 #define C_HIDDEN        106     /* ext symbol in dmert public lib */
 288 #define C_WEAKEXT       127     /* weak symbol -- GNU extension.  */
 289
 290 /* New storage classes for TI COFF */
 291 #define C_UEXT          19      /* Tentative external definition */
 292 #define C_STATLAB       20      /* Static load time label */
 293 #define C_EXTLAB        21      /* External load time label */
 294 #define C_SYSTEM        23      /* System Wide variable */
 295
 296 /* New storage classes for WINDOWS_NT   */
 297 #define C_SECTION       104     /* section name */
 298 #define C_NT_WEAK       105     /* weak external */
 299
 300  /* New storage classes for 80960 */
 301
 302 /* C_LEAFPROC is obsolete.  Use C_LEAFEXT or C_LEAFSTAT */
 303 #define C_LEAFPROC      108     /* Leaf procedure, "call" via BAL */
 304
 305 #define C_SCALL         107     /* Procedure reachable via system call */
 306 #define C_LEAFEXT       108     /* External leaf */
 307 #define C_LEAFSTAT      113     /* Static leaf */
 308 #define C_OPTVAR        109     /* Optimized variable           */
 309 #define C_DEFINE        110     /* Preprocessor #define         */
 310 #define C_PRAGMA        111     /* Advice to compiler or linker */
 311 #define C_SEGMENT       112     /* 80960 segment name           */
 312
 313   /* Storage classes for m88k */
 314 #define C_SHADOW        107     /* shadow symbol                */
 315 #define C_VERSION       108     /* coff version symbol          */
 316
 317  /* New storage classes for RS/6000 */
 318 #define C_HIDEXT        107     /* Un-named external symbol */
 319 #define C_BINCL         108     /* Marks beginning of include file */
 320 #define C_EINCL         109     /* Marks ending of include file */
 321 #define C_AIX_WEAKEXT   111     /* AIX definition of C_WEAKEXT.  */
 322
 323 #define C_NULL_VALUE    0x00de1e00    /* Value for a C_NULL deleted entry.  */
 324
 325 #if defined _AIX52 || defined AIX_WEAK_SUPPORT
 326 #undef C_WEAKEXT
 327 #define C_WEAKEXT       C_AIX_WEAKEXT
 328 #endif
 329
 330  /* storage classes for stab symbols for RS/6000 */
 331 #define C_GSYM          (0x80)
 332 #define C_LSYM          (0x81)
 333 #define C_PSYM          (0x82)
 334 #define C_RSYM          (0x83)
 335 #define C_RPSYM         (0x84)
 336 #define C_STSYM         (0x85)
 337 #define C_TCSYM         (0x86)
 338 #define C_BCOMM         (0x87)
 339 #define C_ECOML         (0x88)
 340 #define C_ECOMM         (0x89)
 341 #define C_DECL          (0x8c)
 342 #define C_ENTRY         (0x8d)
 343 #define C_FUN           (0x8e)
 344 #define C_BSTAT         (0x8f)
 345 #define C_ESTAT         (0x90)
 346
 347 /* Storage classes for Thumb symbols */
 348 #define C_THUMBEXT      (128 + C_EXT)           /* 130 */
 349 #define C_THUMBSTAT     (128 + C_STAT)          /* 131 */
 350 #define C_THUMBLABEL    (128 + C_LABEL)         /* 134 */
 351 #define C_THUMBEXTFUNC  (C_THUMBEXT  + 20)      /* 150 */
 352 #define C_THUMBSTATFUNC (C_THUMBSTAT + 20)      /* 151 */
 353
 354 /* True if XCOFF symbols of class CLASS have auxillary csect information.  */
 355 #define CSECT_SYM_P(CLASS) \
 356   ((CLASS) == C_EXT || (CLASS) == C_AIX_WEAKEXT || (CLASS) == C_HIDEXT)
 357
 358 /********************** SECTION HEADER **********************/
 359
 360 #define SCNNMLEN (8)
 361
 362 struct internal_scnhdr
 363 {
 364   char s_name[SCNNMLEN];        /* section name                 */
 365
 366   /* Physical address, aliased s_nlib.
 367      In the pei format, this field is the virtual section size
 368      (the size of the section after being loaded int memory),
 369      NOT the physical address.  */
 370   bfd_vma s_paddr;
 371
 372   bfd_vma s_vaddr;              /* virtual address              */
 373   bfd_vma s_size;               /* section size                 */
 374   bfd_vma s_scnptr;             /* file ptr to raw data for section */
 375   bfd_vma s_relptr;             /* file ptr to relocation       */
 376   bfd_vma s_lnnoptr;            /* file ptr to line numbers     */
 377   unsigned long s_nreloc;       /* number of relocation entries */
 378   unsigned long s_nlnno;        /* number of line number entries*/
 379   long s_flags;                 /* flags                        */
 380   long s_align;                 /* used on I960                 */
 381   unsigned char s_page;         /* TI COFF load page            */
 382 };
 383
 384 /* s_flags "type".  */
 385 #define STYP_REG         (0x0000)       /* "regular": allocated, relocated, loaded */
 386 #define STYP_DSECT       (0x0001)       /* "dummy":  relocated only*/
 387 #define STYP_NOLOAD      (0x0002)       /* "noload": allocated, relocated, not loaded */
 388 #define STYP_GROUP       (0x0004)       /* "grouped": formed of input sections */
 389 #define STYP_PAD         (0x0008)       /* "padding": not allocated, not relocated, loaded */
 390 #define STYP_COPY        (0x0010)       /* "copy": for decision function used by field update;  not allocated, not relocated,
 391                                                                              loaded; reloc & lineno entries processed normally */
 392 #define STYP_TEXT        (0x0020)       /* section contains text only */
 393 #define S_SHRSEG         (0x0020)       /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile
 394                                                                              will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will
 395                                                                              update all process invocations. */
 396 #define STYP_DATA        (0x0040)       /* section contains data only */
 397 #define STYP_BSS         (0x0080)       /* section contains bss only */
 398 #define S_NEWFCN         (0x0100)       /* In a minimal file or an update file, a new function (as compared with a replaced function) */
 399 #define STYP_INFO        (0x0200)       /* comment: not allocated not relocated, not loaded */
 400 #define STYP_OVER        (0x0400)       /* overlay: relocated not allocated or loaded */
 401 #define STYP_LIB         (0x0800)       /* for .lib: same as INFO */
 402 #define STYP_MERGE       (0x2000)       /* merge section -- combines with text, data or bss sections only */
 403 #define STYP_REVERSE_PAD (0x4000)       /* section will be padded with no-op instructions
 404                                            wherever padding is necessary and there is a
 405                                            word of contiguous bytes beginning on a word
 406                                            boundary. */
 407
 408 #define STYP_LIT        0x8020  /* Literal data (like STYP_TEXT) */
 409
 410
 411 /********************** LINE NUMBERS **********************/
 412
 413 /* 1 line number entry for every "breakpointable" source line in a section.
 414    Line numbers are grouped on a per function basis; first entry in a function
 415    grouping will have l_lnno = 0 and in place of physical address will be the
 416    symbol table index of the function name.  */
 417
 418 struct internal_lineno
 419 {
 420   union
 421   {
 422     bfd_signed_vma l_symndx;            /* function name symbol index, iff l_lnno == 0*/
 423     bfd_signed_vma l_paddr;             /* (physical) address of line number    */
 424   }     l_addr;
 425   unsigned long l_lnno;         /* line number          */
 426 };
 427
 428 /********************** SYMBOLS **********************/
 429
 430 #define SYMNMLEN        8       /* # characters in a symbol name        */
 431 #define FILNMLEN        14      /* # characters in a file name          */
 432 #define DIMNUM          4       /* # array dimensions in auxiliary entry */
 433
 434 struct internal_syment
 435 {
 436   union
 437   {
 438     char _n_name[SYMNMLEN];     /* old COFF version             */
 439     struct
 440     {
 441       bfd_hostptr_t _n_zeroes;  /* new == 0                     */
 442       bfd_hostptr_t _n_offset;  /* offset into string table     */
 443     }      _n_n;
 444     char *_n_nptr[2];           /* allows for overlaying        */
 445   }     _n;
 446   bfd_vma n_value;              /* value of symbol              */
 447   short n_scnum;                /* section number               */
 448   unsigned short n_flags;       /* copy of flags from filhdr    */
 449   unsigned short n_type;        /* type and derived type        */
 450   unsigned char n_sclass;       /* storage class                */
 451   unsigned char n_numaux;       /* number of aux. entries       */
 452 };
 453
 454 #define n_name          _n._n_name
 455 #define n_zeroes        _n._n_n._n_zeroes
 456 #define n_offset        _n._n_n._n_offset
 457
 458 /* Relocatable symbols have number of the section in which they are defined,
 459    or one of the following:  */
 460
 461 #define N_UNDEF ((short)0)      /* undefined symbol */
 462 #define N_ABS   ((short)-1)     /* value of symbol is absolute */
 463 #define N_DEBUG ((short)-2)     /* debugging symbol -- value is meaningless */
 464 #define N_TV    ((short)-3)     /* indicates symbol needs preload transfer vector */
 465 #define P_TV    ((short)-4)     /* indicates symbol needs postload transfer vector*/
 466
 467 /* Type of a symbol, in low N bits of the word.  */
 468
 469 #define T_NULL          0
 470 #define T_VOID          1       /* function argument (only used by compiler) */
 471 #define T_CHAR          2       /* character            */
 472 #define T_SHORT         3       /* short integer        */
 473 #define T_INT           4       /* integer              */
 474 #define T_LONG          5       /* long integer         */
 475 #define T_FLOAT         6       /* floating point       */
 476 #define T_DOUBLE        7       /* double word          */
 477 #define T_STRUCT        8       /* structure            */
 478 #define T_UNION         9       /* union                */
 479 #define T_ENUM          10      /* enumeration          */
 480 #define T_MOE           11      /* member of enumeration*/
 481 #define T_UCHAR         12      /* unsigned character   */
 482 #define T_USHORT        13      /* unsigned short       */
 483 #define T_UINT          14      /* unsigned integer     */
 484 #define T_ULONG         15      /* unsigned long        */
 485 #define T_LNGDBL        16      /* long double          */
 486
 487 /* Derived types, in n_type.  */
 488
 489 #define DT_NON          (0)     /* no derived type */
 490 #define DT_PTR          (1)     /* pointer */
 491 #define DT_FCN          (2)     /* function */
 492 #define DT_ARY          (3)     /* array */
 493
 494 #define BTYPE(x)        ((x) & N_BTMASK)
 495 #define DTYPE(x)        (((x) & N_TMASK) >> N_BTSHFT)
 496
 497 #define ISPTR(x) \
 498   (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_PTR << N_BTSHFT))
 499 #define ISFCN(x) \
 500   (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_FCN << N_BTSHFT))
 501 #define ISARY(x) \
 502   (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_ARY << N_BTSHFT))
 503 #define ISTAG(x) \
 504   ((x) == C_STRTAG || (x) == C_UNTAG || (x) == C_ENTAG)
 505 #define DECREF(x) \
 506   ((((x) >> N_TSHIFT) & ~ N_BTMASK) | ((x) & N_BTMASK))
 507
 508 union internal_auxent
 509 {
 510   struct
 511   {
 512
 513     union
 514     {
 515       long l;                   /* str, un, or enum tag indx */
 516       struct coff_ptr_struct *p;
 517     }     x_tagndx;
 518
 519     union
 520     {
 521       struct
 522       {
 523         unsigned short x_lnno;  /* declaration line number */
 524         unsigned short x_size;  /* str/union/array size */
 525       }      x_lnsz;
 526       long x_fsize;             /* size of function */
 527     }     x_misc;
 528
 529     union
 530     {
 531       struct
 532       {                         /* if ISFCN, tag, or .bb */
 533         bfd_signed_vma x_lnnoptr;               /* ptr to fcn line # */
 534         union
 535         {                       /* entry ndx past block end */
 536           long l;
 537           struct coff_ptr_struct *p;
 538         }     x_endndx;
 539       }      x_fcn;
 540
 541       struct
 542       {                         /* if ISARY, up to 4 dimen. */
 543         unsigned short x_dimen[DIMNUM];
 544       }      x_ary;
 545     }     x_fcnary;
 546
 547     unsigned short x_tvndx;     /* tv index */
 548   }      x_sym;
 549
 550   union
 551   {
 552     char x_fname[FILNMLEN];
 553     struct
 554     {
 555       long x_zeroes;
 556       long x_offset;
 557     }      x_n;
 558   }     x_file;
 559
 560   struct
 561   {
 562     long x_scnlen;              /* section length */
 563     unsigned short x_nreloc;    /* # relocation entries */
 564     unsigned short x_nlinno;    /* # line numbers */
 565     unsigned long x_checksum;   /* section COMDAT checksum for PE */
 566     unsigned short x_associated; /* COMDAT associated section index for PE */
 567     unsigned char x_comdat;     /* COMDAT selection number for PE */
 568   }      x_scn;
 569
 570   struct
 571   {
 572     long x_tvfill;              /* tv fill value */
 573     unsigned short x_tvlen;     /* length of .tv */
 574     unsigned short x_tvran[2];  /* tv range */
 575   }      x_tv;                  /* info about .tv section (in auxent of symbol .tv)) */
 576
 577   /******************************************
 578    * RS/6000-specific auxent - last auxent for every external symbol
 579    ******************************************/
 580   struct
 581   {
 582     union
 583       {                         /* csect length or enclosing csect */
 584         bfd_signed_vma l;
 585         struct coff_ptr_struct *p;
 586       } x_scnlen;
 587     long x_parmhash;            /* parm type hash index */
 588     unsigned short x_snhash;    /* sect num with parm hash */
 589     unsigned char x_smtyp;      /* symbol align and type */
 590     /* 0-4 - Log 2 of alignment */
 591     /* 5-7 - symbol type */
 592     unsigned char x_smclas;     /* storage mapping class */
 593     long x_stab;                /* dbx stab info index */
 594     unsigned short x_snstab;    /* sect num with dbx stab */
 595   }      x_csect;               /* csect definition information */
 596
 597 /* x_smtyp values:  */
 598
 599 #define SMTYP_ALIGN(x)  ((x) >> 3)      /* log2 of alignment */
 600 #define SMTYP_SMTYP(x)  ((x) & 0x7)     /* symbol type */
 601 /* Symbol type values:  */
 602 #define XTY_ER  0               /* External reference */
 603 #define XTY_SD  1               /* Csect definition */
 604 #define XTY_LD  2               /* Label definition */
 605 #define XTY_CM  3               /* .BSS */
 606 #define XTY_EM  4               /* Error message */
 607 #define XTY_US  5               /* "Reserved for internal use" */
 608
 609 /* x_smclas values:  */
 610
 611 #define XMC_PR  0               /* Read-only program code */
 612 #define XMC_RO  1               /* Read-only constant */
 613 #define XMC_DB  2               /* Read-only debug dictionary table */
 614 #define XMC_TC  3               /* Read-write general TOC entry */
 615 #define XMC_UA  4               /* Read-write unclassified */
 616 #define XMC_RW  5               /* Read-write data */
 617 #define XMC_GL  6               /* Read-only global linkage */
 618 #define XMC_XO  7               /* Read-only extended operation */
 619 #define XMC_SV  8               /* Read-only supervisor call */
 620 #define XMC_BS  9               /* Read-write BSS */
 621 #define XMC_DS  10              /* Read-write descriptor csect */
 622 #define XMC_UC  11              /* Read-write unnamed Fortran common */
 623 #define XMC_TI  12              /* Read-only traceback index csect */
 624 #define XMC_TB  13              /* Read-only traceback table csect */
 625 /*              14      ??? */
 626 #define XMC_TC0 15              /* Read-write TOC anchor */
 627 #define XMC_TD  16              /* Read-write data in TOC */
 628
 629   /******************************************
 630    *  I960-specific *2nd* aux. entry formats
 631    ******************************************/
 632   struct
 633   {
 634     /* This is a very old typo that keeps getting propagated. */
 635 #define x_stdindx x_stindx
 636     long x_stindx;              /* sys. table entry */
 637   }      x_sc;                  /* system call entry */
 638
 639   struct
 640   {
 641     unsigned long x_balntry;    /* BAL entry point */
 642   }      x_bal;                 /* BAL-callable function */
 643
 644   struct
 645   {
 646     unsigned long x_timestamp;  /* time stamp */
 647     char x_idstring[20];        /* producer identity string */
 648   }      x_ident;               /* Producer ident info */
 649
 650 };
 651
 652 /********************** RELOCATION DIRECTIVES **********************/
 653
 654 struct internal_reloc
 655 {
 656   bfd_vma r_vaddr;              /* Virtual address of reference */
 657   long r_symndx;                /* Index into symbol table      */
 658   unsigned short r_type;        /* Relocation type              */
 659   unsigned char r_size;         /* Used by RS/6000 and ECOFF    */
 660   unsigned char r_extern;       /* Used by ECOFF                */
 661   unsigned long r_offset;       /* Used by Alpha ECOFF, SPARC, others */
 662 };
 663
 664 /* X86-64 relocations.  */
 665 #define R_AMD64_ABS              0 /* Reference is absolute, no relocation is necessary.  */
 666 #define R_AMD64_DIR64            1 /* 64-bit address (VA).  */
 667 #define R_AMD64_DIR32            2 /* 32-bit address (VA) R_DIR32.  */
 668 #define R_AMD64_IMAGEBASE        3 /* 32-bit absolute ref w/o base R_IMAGEBASE.  */
 669 #define R_AMD64_PCRLONG          4 /* 32-bit relative address from byte following reloc R_PCRLONG.  */
 670 #define R_AMD64_PCRLONG_1        5 /* 32-bit relative address from byte distance 1 from reloc.  */
 671 #define R_AMD64_PCRLONG_2        6 /* 32-bit relative address from byte distance 2 from reloc.  */
 672 #define R_AMD64_PCRLONG_3        7 /* 32-bit relative address from byte distance 3 from reloc.  */
 673 #define R_AMD64_PCRLONG_4        8 /* 32-bit relative address from byte distance 4 from reloc.  */
 674 #define R_AMD64_PCRLONG_5        9 /* 32-bit relative address from byte distance 5 from reloc.  */
 675 #define R_AMD64_SECTION         10 /* Section index.  */
 676 #define R_AMD64_SECREL          11 /* 32 bit offset from base of section containing target R_SECREL.  */
 677 #define R_AMD64_SECREL7         12 /* 7 bit unsigned offset from base of section containing target.  */
 678 #define R_AMD64_TOKEN           13 /* 32 bit metadata token.  */
 679 #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.  */
 680
 681 /* i386 Relocations.  */
 682
 683 #define R_DIR16          1
 684 #define R_REL24          5
 685 #define R_DIR32          6
 686 #define R_IMAGEBASE      7
 687 #define R_SECREL32      11
 688 #define R_RELBYTE       15
 689 #define R_RELWORD       16
 690 #define R_RELLONG       17
 691 #define R_PCRBYTE       18
 692 #define R_PCRWORD       19
 693 #define R_PCRLONG       20
 694 #define R_PCR24         21
 695 #define R_IPRSHORT      24
 696 #define R_IPRLONG       26
 697 #define R_GETSEG        29
 698 #define R_GETPA         30
 699 #define R_TAGWORD       31
 700 #define R_JUMPTARG      32      /* strange 29k 00xx00xx reloc */
 701 #define R_PARTLS16      32
 702 #define R_PARTMS8       33
 703
 704 #define R_PCR16L       128
 705 #define R_PCR26L       129
 706 #define R_VRT16        130
 707 #define R_HVRT16       131
 708 #define R_LVRT16       132
 709 #define R_VRT32        133
 710
 711
 712 /* This reloc identifies mov.b instructions with a 16bit absolute
 713    address.  The linker tries to turn insns with this reloc into
 714    an absolute 8-bit address.  */
 715 #define R_MOV16B1       0x41
 716
 717 /* This reloc identifies mov.b instructions which had a 16bit
 718    absolute address which have been shortened into a 8-bit
 719    absolute address.  */
 720 #define R_MOV16B2       0x42
 721
 722 /* This reloc identifies jmp insns with a 16bit target address;
 723    the linker tries to turn these insns into bra insns with
 724    an 8bit pc-relative target.  */
 725 #define R_JMP1          0x43
 726
 727 /* This reloc identifies a bra with an 8-bit pc-relative
 728    target that was formerly a jmp insn with a 16bit target.  */
 729 #define R_JMP2          0x44
 730
 731 /* ??? */
 732 #define R_RELLONG_NEG   0x45
 733
 734 /* This reloc identifies jmp insns with a 24bit target address;
 735    the linker tries to turn these insns into bra insns with
 736    an 8bit pc-relative target.  */
 737 #define R_JMPL1         0x46
 738
 739 /* This reloc identifies a bra with an 8-bit pc-relative
 740    target that was formerly a jmp insn with a 24bit target.  */
 741 #define R_JMPL2         0x47
 742
 743 /* This reloc identifies mov.b instructions with a 24bit absolute
 744    address.  The linker tries to turn insns with this reloc into
 745    an absolute 8-bit address.  */
 746
 747 #define R_MOV24B1       0x48
 748
 749 /* This reloc identifies mov.b instructions which had a 24bit
 750    absolute address which have been shortened into a 8-bit
 751    absolute address.  */
 752 #define R_MOV24B2       0x49
 753
 754 /* An h8300 memory indirect jump/call.  Forces the address of the jump/call
 755    target into the function vector (in page zero), and the address of the
 756    vector entry to be placed in the jump/call instruction.  */
 757 #define R_MEM_INDIRECT  0x4a
 758
 759 /* This reloc identifies a 16bit pc-relative branch target which was
 760    shortened into an 8bit pc-relative branch target.  */
 761 #define R_PCRWORD_B     0x4b
 762
 763 /* This reloc identifies mov.[wl] instructions with a 32/24 bit
 764    absolute address; the linker may turn this into a mov.[wl]
 765    insn with a 16bit absolute address.  */
 766 #define R_MOVL1         0x4c
 767
 768 /* This reloc identifies mov.[wl] insns which formerly had
 769    a 32/24bit absolute address and now have a 16bit absolute address.  */
 770 #define R_MOVL2         0x4d
 771
 772 /* This reloc identifies a bCC:8 which will have it's condition
 773    inverted and its target redirected to the target of the branch
 774    in the following insn.  */
 775 #define R_BCC_INV       0x4e
 776
 777 /* This reloc identifies a jmp instruction that has been deleted.  */
 778 #define R_JMP_DEL       0x4f
 779
 780 /* Z8k modes */
 781 #define R_IMM16   0x01          /* 16 bit abs */
 782 #define R_JR      0x02          /* jr  8 bit disp */
 783 #define R_IMM4L   0x23          /* low nibble */
 784 #define R_IMM8    0x22          /* 8 bit abs */
 785 #define R_IMM32   R_RELLONG     /* 32 bit abs */
 786 #define R_CALL    R_DA          /* Absolute address which could be a callr */
 787 #define R_JP      R_DA          /* Absolute address which could be a jp */
 788 #define R_REL16   0x04          /* 16 bit PC rel */
 789 #define R_CALLR   0x05          /* callr 12 bit disp */
 790 #define R_SEG     0x10          /* set if in segmented mode */
 791 #define R_IMM4H   0x24          /* high nibble */
 792 #define R_DISP7   0x25          /* djnz displacement */
 793
 794 /* Z80 modes */
 795 #define R_OFF8    0x32          /* 8 bit signed abs, for (i[xy]+d) */
 796 #define R_IMM24   0x33          /* 24 bit abs */
 797 /* R_JR, R_IMM8, R_IMM16, R_IMM32 - as for Z8k */
 798
 799 /* H8500 modes */
 800
 801 #define R_H8500_IMM8    1               /*  8 bit immediate     */
 802 #define R_H8500_IMM16   2               /* 16 bit immediate     */
 803 #define R_H8500_PCREL8  3               /*  8 bit pcrel         */
 804 #define R_H8500_PCREL16 4               /* 16 bit pcrel         */
 805 #define R_H8500_HIGH8   5               /* high 8 bits of 24 bit address */
 806 #define R_H8500_LOW16   7               /* low 16 bits of 24 bit immediate */
 807 #define R_H8500_IMM24   6               /* 24 bit immediate */
 808 #define R_H8500_IMM32   8               /* 32 bit immediate */
 809 #define R_H8500_HIGH16  9               /* high 16 bits of 32 bit immediate */
 810
 811 /* W65 modes */
 812
 813 #define R_W65_ABS8      1  /* addr & 0xff               */
 814 #define R_W65_ABS16     2  /* addr & 0xffff             */
 815 #define R_W65_ABS24     3  /* addr & 0xffffff           */
 816
 817 #define R_W65_ABS8S8    4  /* (addr >> 8) & 0xff        */
 818 #define R_W65_ABS8S16   5  /* (addr >> 16) & 0xff       */
 819
 820 #define R_W65_ABS16S8   6  /* (addr >> 8) & 0ffff       */
 821 #define R_W65_ABS16S16  7  /* (addr >> 16) & 0ffff      */
 822
 823 #define R_W65_PCR8      8
 824 #define R_W65_PCR16     9
 825
 826 #define R_W65_DP       10  /* direct page 8 bits only   */
 827
 828 #endif /* GNU_COFF_INTERNAL_H */