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  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 (C) 1999-2015 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 3 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., 51 Franklin Street - Fifth Floor, Boston,
  19.    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. #define GO32_STUBSIZE 2048
  62.  
  63. struct internal_filehdr
  64. {
  65.   struct internal_extra_pe_filehdr pe;
  66.  
  67.   /* coff-stgo32 EXE stub header before BFD tdata has been allocated.
  68.      Its data is kept in INTERNAL_FILEHDR.GO32STUB afterwards.
  69.  
  70.      F_GO32STUB is set iff go32stub contains a valid data.  Artifical headers
  71.      created in BFD have no pre-set go32stub.  */
  72.   char go32stub[GO32_STUBSIZE];
  73.  
  74.   /* Standard coff internal info.  */
  75.   unsigned short f_magic;       /* magic number                 */
  76.   unsigned int   f_nscns;       /* number of sections           */
  77.   long f_timdat;                /* time & date stamp            */
  78.   bfd_vma f_symptr;             /* file pointer to symtab       */
  79.   long f_nsyms;                 /* number of symtab entries     */
  80.   unsigned short f_opthdr;      /* sizeof(optional hdr)         */
  81.   unsigned short f_flags;       /* flags                        */
  82.   unsigned short f_target_id;   /* (TI COFF specific)           */
  83. };
  84.  
  85.  
  86. /* Bits for f_flags:
  87.         F_RELFLG        relocation info stripped from file
  88.         F_EXEC          file is executable (no unresolved external references)
  89.         F_LNNO          line numbers stripped from file
  90.         F_LSYMS         local symbols stripped from file
  91.         F_AR16WR        file is 16-bit little-endian
  92.         F_AR32WR        file is 32-bit little-endian
  93.         F_AR32W         file is 32-bit big-endian
  94.         F_DYNLOAD       rs/6000 aix: dynamically loadable w/imports & exports
  95.         F_SHROBJ        rs/6000 aix: file is a shared object
  96.         F_DLL           PE format DLL
  97.         F_GO32STUB      Field go32stub contains valid data.  */
  98.  
  99. #define F_RELFLG        (0x0001)
  100. #define F_EXEC          (0x0002)
  101. #define F_LNNO          (0x0004)
  102. #define F_LSYMS         (0x0008)
  103. #define F_AR16WR        (0x0080)
  104. #define F_AR32WR        (0x0100)
  105. #define F_AR32W         (0x0200)
  106. #define F_DYNLOAD       (0x1000)
  107. #define F_SHROBJ        (0x2000)
  108. #define F_DLL           (0x2000)
  109. #define F_GO32STUB      (0x4000)
  110.  
  111. /* Extra structure which is used in the optional header.  */
  112. typedef struct _IMAGE_DATA_DIRECTORY
  113. {
  114.   bfd_vma VirtualAddress;
  115.   long    Size;
  116. }  IMAGE_DATA_DIRECTORY;
  117. #define PE_EXPORT_TABLE                 0
  118. #define PE_IMPORT_TABLE                 1
  119. #define PE_RESOURCE_TABLE               2
  120. #define PE_EXCEPTION_TABLE              3
  121. #define PE_CERTIFICATE_TABLE            4
  122. #define PE_BASE_RELOCATION_TABLE        5
  123. #define PE_DEBUG_DATA                   6
  124. #define PE_ARCHITECTURE                 7
  125. #define PE_GLOBAL_PTR                   8
  126. #define PE_TLS_TABLE                    9
  127. #define PE_LOAD_CONFIG_TABLE            10
  128. #define PE_BOUND_IMPORT_TABLE           11
  129. #define PE_IMPORT_ADDRESS_TABLE         12
  130. #define PE_DELAY_IMPORT_DESCRIPTOR      13
  131. #define PE_CLR_RUNTIME_HEADER           14
  132. /* DataDirectory[15] is currently reserved, so no define. */
  133. #define IMAGE_NUMBEROF_DIRECTORY_ENTRIES  16
  134.  
  135. /* Extra structure used in debug directory.  */
  136. struct internal_IMAGE_DEBUG_DIRECTORY
  137. {
  138.   unsigned long  Characteristics;
  139.   unsigned long  TimeDateStamp;
  140.   unsigned short MajorVersion;
  141.   unsigned short MinorVersion;
  142.   unsigned long  Type;
  143.   unsigned long  SizeOfData;
  144.   unsigned long  AddressOfRawData;
  145.   unsigned long  PointerToRawData;
  146. };
  147.  
  148. #define PE_IMAGE_DEBUG_TYPE_UNKNOWN          0
  149. #define PE_IMAGE_DEBUG_TYPE_COFF             1
  150. #define PE_IMAGE_DEBUG_TYPE_CODEVIEW         2
  151. #define PE_IMAGE_DEBUG_TYPE_FPO              3
  152. #define PE_IMAGE_DEBUG_TYPE_MISC             4
  153. #define PE_IMAGE_DEBUG_TYPE_EXCEPTION        5
  154. #define PE_IMAGE_DEBUG_TYPE_FIXUP            6
  155. #define PE_IMAGE_DEBUG_TYPE_OMAP_TO_SRC      7
  156. #define PE_IMAGE_DEBUG_TYPE_OMAP_FROM_SRC    8
  157. #define PE_IMAGE_DEBUG_TYPE_BORLAND          9
  158. #define PE_IMAGE_DEBUG_TYPE_RESERVED10       10
  159. #define PE_IMAGE_DEBUG_TYPE_CLSID            11
  160.  
  161. /* Extra structure for a codeview debug record */
  162. #define CV_INFO_SIGNATURE_LENGTH 16
  163.  
  164. typedef struct _CODEVIEW_INFO
  165. {
  166.   unsigned long CVSignature;
  167.   char          Signature[CV_INFO_SIGNATURE_LENGTH];
  168.   unsigned int  SignatureLength;
  169.   unsigned long Age;
  170.   // char PdbFileName[];
  171. } CODEVIEW_INFO;
  172.  
  173. /* Default image base for NT.  */
  174. #define NT_EXE_IMAGE_BASE 0x400000
  175. #define NT_DLL_IMAGE_BASE 0x10000000
  176.  
  177. /* Default image base for BeOS. */
  178. #define BEOS_EXE_IMAGE_BASE 0x80000000
  179. #define BEOS_DLL_IMAGE_BASE 0x10000000
  180.  
  181. /* Extra stuff in a PE aouthdr */
  182.  
  183. #define PE_DEF_SECTION_ALIGNMENT 0x1000
  184. #ifndef PE_DEF_FILE_ALIGNMENT
  185. # define PE_DEF_FILE_ALIGNMENT 0x200
  186. #endif
  187.  
  188. struct internal_extra_pe_aouthdr
  189. {
  190.   /* FIXME: The following entries are in AOUTHDR.  But they aren't
  191.      available internally in bfd.  We add them here so that objdump
  192.      can dump them.  */
  193.   /* The state of the image file.  */
  194.   short Magic;
  195.   /* Linker major version number.  */
  196.   char MajorLinkerVersion;
  197.   /* Linker minor version number.  */
  198.   char MinorLinkerVersion;     
  199.   /* Total size of all code sections.  */
  200.   long SizeOfCode;
  201.   /* Total size of all initialized data sections.  */
  202.   long SizeOfInitializedData;
  203.   /* Total size of all uninitialized data sections.  */
  204.   long SizeOfUninitializedData;
  205.   /* Address of entry point relative to image base.  */
  206.   bfd_vma AddressOfEntryPoint;
  207.   /* Address of the first code section relative to image base.  */
  208.   bfd_vma BaseOfCode;
  209.   /* Address of the first data section relative to image base.  */
  210.   bfd_vma BaseOfData;
  211.  
  212.   /* PE stuff  */
  213.   bfd_vma ImageBase;            /* Address of specific location in memory that
  214.                                     file is located, NT default 0x10000.  */
  215.  
  216.   bfd_vma SectionAlignment;     /* Section alignment default 0x1000.  */
  217.   bfd_vma FileAlignment;        /* File alignment default 0x200.  */
  218.   short   MajorOperatingSystemVersion; /* Minimum version of the operating.  */
  219.   short   MinorOperatingSystemVersion; /* System req'd for exe, default to 1.  */
  220.   short   MajorImageVersion;    /* User defineable field to store version of */
  221.   short   MinorImageVersion;    /*  exe or dll being created, default to 0.  */
  222.   short   MajorSubsystemVersion; /* Minimum subsystem version required to */
  223.   short   MinorSubsystemVersion; /*  run exe; default to 3.1.  */
  224.   long    Reserved1;            /* Seems to be 0.  */
  225.   long    SizeOfImage;          /* Size of memory to allocate for prog.  */
  226.   long    SizeOfHeaders;        /* Size of PE header and section table.  */
  227.   long    CheckSum;             /* Set to 0.  */
  228.   short   Subsystem;   
  229.  
  230.   /* Type of subsystem exe uses for user interface,
  231.      possible values:
  232.      1 - NATIVE   Doesn't require a subsystem
  233.      2 - WINDOWS_GUI runs in Windows GUI subsystem
  234.      3 - WINDOWS_CUI runs in Windows char sub. (console app)
  235.      5 - OS2_CUI runs in OS/2 character subsystem
  236.      7 - POSIX_CUI runs in Posix character subsystem.  */
  237.   unsigned short DllCharacteristics; /* flags for DLL init.  */
  238.   bfd_vma SizeOfStackReserve;   /* Amount of memory to reserve.  */
  239.   bfd_vma SizeOfStackCommit;    /* Amount of memory initially committed for
  240.                                     initial thread's stack, default is 0x1000.  */
  241.   bfd_vma SizeOfHeapReserve;    /* Amount of virtual memory to reserve and */
  242.   bfd_vma SizeOfHeapCommit;     /*  commit, don't know what to defaut it to.  */
  243.   long    LoaderFlags;          /* Can probably set to 0.  */
  244.   long    NumberOfRvaAndSizes;  /* Number of entries in next entry, 16.  */
  245.   IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES];
  246. };
  247.  
  248. /********************** AOUT "OPTIONAL HEADER" **********************/
  249. struct internal_aouthdr
  250. {
  251.   short magic;                  /* type of file                         */
  252.   short vstamp;                 /* version stamp                        */
  253.   bfd_vma tsize;                /* text size in bytes, padded to FW bdry*/
  254.   bfd_vma dsize;                /* initialized data "  "                */
  255.   bfd_vma bsize;                /* uninitialized data "   "             */
  256.   bfd_vma entry;                /* entry pt.                            */
  257.   bfd_vma text_start;           /* base of text used for this file */
  258.   bfd_vma data_start;           /* base of data used for this file */
  259.  
  260.   /* i960 stuff */
  261.   unsigned long tagentries;     /* number of tag entries to follow */
  262.  
  263.   /* RS/6000 stuff */
  264.   bfd_vma o_toc;                /* address of TOC                       */
  265.   short o_snentry;              /* section number for entry point */
  266.   short o_sntext;               /* section number for text      */
  267.   short o_sndata;               /* section number for data      */
  268.   short o_sntoc;                /* section number for toc       */
  269.   short o_snloader;             /* section number for loader section */
  270.   short o_snbss;                /* section number for bss       */
  271.   short o_algntext;             /* max alignment for text       */
  272.   short o_algndata;             /* max alignment for data       */
  273.   short o_modtype;              /* Module type field, 1R,RE,RO  */
  274.   short o_cputype;              /* Encoded CPU type             */
  275.   bfd_vma o_maxstack;   /* max stack size allowed.      */
  276.   bfd_vma o_maxdata;    /* max data size allowed.       */
  277.  
  278.   /* ECOFF stuff */
  279.   bfd_vma bss_start;            /* Base of bss section.         */
  280.   bfd_vma gp_value;             /* GP register value.           */
  281.   unsigned long gprmask;        /* General registers used.      */
  282.   unsigned long cprmask[4];     /* Coprocessor registers used.  */
  283.   unsigned long fprmask;        /* Floating pointer registers used.  */
  284.  
  285.   /* Apollo stuff */
  286.   long o_inlib;                 /* inlib data */
  287.   long o_sri;                   /* Static Resource Information */
  288.   long vid[2];                  /* Version id */
  289.  
  290.   struct internal_extra_pe_aouthdr pe;
  291. };
  292.  
  293. /********************** STORAGE CLASSES **********************/
  294.  
  295. /* This used to be defined as -1, but now n_sclass is unsigned.  */
  296. #define C_EFCN          0xff    /* physical end of function     */
  297. #define C_NULL          0
  298. #define C_AUTO          1       /* automatic variable           */
  299. #define C_EXT           2       /* external symbol              */
  300. #define C_STAT          3       /* static                       */
  301. #define C_REG           4       /* register variable            */
  302. #define C_EXTDEF        5       /* external definition          */
  303. #define C_LABEL         6       /* label                        */
  304. #define C_ULABEL        7       /* undefined label              */
  305. #define C_MOS           8       /* member of structure          */
  306. #define C_ARG           9       /* function argument            */
  307. #define C_STRTAG        10      /* structure tag                */
  308. #define C_MOU           11      /* member of union              */
  309. #define C_UNTAG         12      /* union tag                    */
  310. #define C_TPDEF         13      /* type definition              */
  311. #define C_USTATIC       14      /* undefined static             */
  312. #define C_ENTAG         15      /* enumeration tag              */
  313. #define C_MOE           16      /* member of enumeration        */
  314. #define C_REGPARM       17      /* register parameter           */
  315. #define C_FIELD         18      /* bit field                    */
  316. #define C_AUTOARG       19      /* auto argument                */
  317. #define C_LASTENT       20      /* dummy entry (end of block)   */
  318. #define C_BLOCK         100     /* ".bb" or ".eb"               */
  319. #define C_FCN           101     /* ".bf" or ".ef"               */
  320. #define C_EOS           102     /* end of structure             */
  321. #define C_FILE          103     /* file name                    */
  322. #define C_LINE          104     /* line # reformatted as symbol table entry */
  323. #define C_ALIAS         105     /* duplicate tag                */
  324. #define C_HIDDEN        106     /* ext symbol in dmert public lib */
  325. #define C_WEAKEXT       127     /* weak symbol -- GNU extension.  */
  326.  
  327. /* New storage classes for TI COFF */
  328. #define C_UEXT          19      /* Tentative external definition */
  329. #define C_STATLAB       20      /* Static load time label */
  330. #define C_EXTLAB        21      /* External load time label */
  331. #define C_SYSTEM        23      /* System Wide variable */
  332.  
  333. /* New storage classes for WINDOWS_NT   */
  334. #define C_SECTION       104     /* section name */
  335. #define C_NT_WEAK       105     /* weak external */
  336.  
  337.  /* New storage classes for 80960 */
  338.  
  339. /* C_LEAFPROC is obsolete.  Use C_LEAFEXT or C_LEAFSTAT */
  340. #define C_LEAFPROC      108     /* Leaf procedure, "call" via BAL */
  341.  
  342. #define C_SCALL         107     /* Procedure reachable via system call */
  343. #define C_LEAFEXT       108     /* External leaf */
  344. #define C_LEAFSTAT      113     /* Static leaf */
  345. #define C_OPTVAR        109     /* Optimized variable           */
  346. #define C_DEFINE        110     /* Preprocessor #define         */
  347. #define C_PRAGMA        111     /* Advice to compiler or linker */
  348. #define C_SEGMENT       112     /* 80960 segment name           */
  349.  
  350.   /* Storage classes for m88k */
  351. #define C_SHADOW        107     /* shadow symbol                */
  352. #define C_VERSION       108     /* coff version symbol          */
  353.  
  354.  /* New storage classes for RS/6000 */
  355. #define C_HIDEXT        107     /* Un-named external symbol */
  356. #define C_BINCL         108     /* Marks beginning of include file */
  357. #define C_EINCL         109     /* Marks ending of include file */
  358. #define C_AIX_WEAKEXT   111     /* AIX definition of C_WEAKEXT.  */
  359.  
  360. #define C_NULL_VALUE    0x00de1e00    /* Value for a C_NULL deleted entry.  */
  361.  
  362. #if defined _AIX52 || defined AIX_WEAK_SUPPORT
  363. #undef C_WEAKEXT
  364. #define C_WEAKEXT       C_AIX_WEAKEXT
  365. #endif
  366.  
  367.  /* storage classes for stab symbols for RS/6000 */
  368. #define C_GSYM          (0x80)
  369. #define C_LSYM          (0x81)
  370. #define C_PSYM          (0x82)
  371. #define C_RSYM          (0x83)
  372. #define C_RPSYM         (0x84)
  373. #define C_STSYM         (0x85)
  374. #define C_TCSYM         (0x86)
  375. #define C_BCOMM         (0x87)
  376. #define C_ECOML         (0x88)
  377. #define C_ECOMM         (0x89)
  378. #define C_DECL          (0x8c)
  379. #define C_ENTRY         (0x8d)
  380. #define C_FUN           (0x8e)
  381. #define C_BSTAT         (0x8f)
  382. #define C_ESTAT         (0x90)
  383. #define C_GTLS          (0x97)
  384. #define C_STTLS         (0x98)
  385.  
  386. /* Storage classes for Thumb symbols */
  387. #define C_THUMBEXT      (128 + C_EXT)           /* 130 */
  388. #define C_THUMBSTAT     (128 + C_STAT)          /* 131 */
  389. #define C_THUMBLABEL    (128 + C_LABEL)         /* 134 */
  390. #define C_THUMBEXTFUNC  (C_THUMBEXT  + 20)      /* 150 */
  391. #define C_THUMBSTATFUNC (C_THUMBSTAT + 20)      /* 151 */
  392.  
  393. /* True if XCOFF symbols of class CLASS have auxillary csect information.  */
  394. #define CSECT_SYM_P(CLASS) \
  395.   ((CLASS) == C_EXT || (CLASS) == C_AIX_WEAKEXT || (CLASS) == C_HIDEXT)
  396.  
  397. /********************** SECTION HEADER **********************/
  398.  
  399. #define SCNNMLEN (8)
  400.  
  401. struct internal_scnhdr
  402. {
  403.   char s_name[SCNNMLEN];        /* section name                 */
  404.  
  405.   /* Physical address, aliased s_nlib.
  406.      In the pei format, this field is the virtual section size
  407.      (the size of the section after being loaded int memory),
  408.      NOT the physical address.  */
  409.   bfd_vma s_paddr;
  410.  
  411.   bfd_vma s_vaddr;              /* virtual address              */
  412.   bfd_vma s_size;               /* section size                 */
  413.   bfd_vma s_scnptr;             /* file ptr to raw data for section */
  414.   bfd_vma s_relptr;             /* file ptr to relocation       */
  415.   bfd_vma s_lnnoptr;            /* file ptr to line numbers     */
  416.   unsigned long s_nreloc;       /* number of relocation entries */
  417.   unsigned long s_nlnno;        /* number of line number entries*/
  418.   long s_flags;                 /* flags                        */
  419.   long s_align;                 /* used on I960                 */
  420.   unsigned char s_page;         /* TI COFF load page            */
  421. };
  422.  
  423. /* s_flags "type".  */
  424. #define STYP_REG         (0x0000)       /* "regular": allocated, relocated, loaded */
  425. #define STYP_DSECT       (0x0001)       /* "dummy":  relocated only*/
  426. #define STYP_NOLOAD      (0x0002)       /* "noload": allocated, relocated, not loaded */
  427. #define STYP_GROUP       (0x0004)       /* "grouped": formed of input sections */
  428. #define STYP_PAD         (0x0008)       /* "padding": not allocated, not relocated, loaded */
  429. #define STYP_COPY        (0x0010)       /* "copy": for decision function used by field update;  not allocated, not relocated,
  430.                                                                              loaded; reloc & lineno entries processed normally */
  431. #define STYP_TEXT        (0x0020)       /* section contains text only */
  432. #define S_SHRSEG         (0x0020)       /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile
  433.                                                                              will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will
  434.                                                                              update all process invocations. */
  435. #define STYP_DATA        (0x0040)       /* section contains data only */
  436. #define STYP_BSS         (0x0080)       /* section contains bss only */
  437. #define S_NEWFCN         (0x0100)       /* In a minimal file or an update file, a new function (as compared with a replaced function) */
  438. #define STYP_INFO        (0x0200)       /* comment: not allocated not relocated, not loaded */
  439. #define STYP_OVER        (0x0400)       /* overlay: relocated not allocated or loaded */
  440. #define STYP_LIB         (0x0800)       /* for .lib: same as INFO */
  441. #define STYP_MERGE       (0x2000)       /* merge section -- combines with text, data or bss sections only */
  442. #define STYP_REVERSE_PAD (0x4000)       /* section will be padded with no-op instructions
  443.                                            wherever padding is necessary and there is a
  444.                                            word of contiguous bytes beginning on a word
  445.                                            boundary. */
  446.  
  447. #define STYP_LIT        0x8020  /* Literal data (like STYP_TEXT) */
  448.  
  449.  
  450. /********************** LINE NUMBERS **********************/
  451.  
  452. /* 1 line number entry for every "breakpointable" source line in a section.
  453.    Line numbers are grouped on a per function basis; first entry in a function
  454.    grouping will have l_lnno = 0 and in place of physical address will be the
  455.    symbol table index of the function name.  */
  456.  
  457. struct internal_lineno
  458. {
  459.   union
  460.   {
  461.     bfd_signed_vma l_symndx;            /* function name symbol index, iff l_lnno == 0*/
  462.     bfd_signed_vma l_paddr;             /* (physical) address of line number    */
  463.   }     l_addr;
  464.   unsigned long l_lnno;         /* line number          */
  465. };
  466.  
  467. /********************** SYMBOLS **********************/
  468.  
  469. #define SYMNMLEN        8       /* # characters in a symbol name        */
  470. #define FILNMLEN        14      /* # characters in a file name          */
  471. #define DIMNUM          4       /* # array dimensions in auxiliary entry */
  472.  
  473. struct internal_syment
  474. {
  475.   union
  476.   {
  477.     char _n_name[SYMNMLEN];     /* old COFF version             */
  478.     struct
  479.     {
  480.       bfd_hostptr_t _n_zeroes;  /* new == 0                     */
  481.       bfd_hostptr_t _n_offset;  /* offset into string table     */
  482.     }      _n_n;
  483.     char *_n_nptr[2];           /* allows for overlaying        */
  484.   }     _n;
  485.   bfd_vma n_value;              /* value of symbol              */
  486.   short n_scnum;                /* section number               */
  487.   unsigned short n_flags;       /* copy of flags from filhdr    */
  488.   unsigned short n_type;        /* type and derived type        */
  489.   unsigned char n_sclass;       /* storage class                */
  490.   unsigned char n_numaux;       /* number of aux. entries       */
  491. };
  492.  
  493. #define n_name          _n._n_name
  494. #define n_zeroes        _n._n_n._n_zeroes
  495. #define n_offset        _n._n_n._n_offset
  496.  
  497. /* Relocatable symbols have number of the section in which they are defined,
  498.    or one of the following:  */
  499.  
  500. #define N_UNDEF ((short)0)      /* undefined symbol */
  501. #define N_ABS   ((short)-1)     /* value of symbol is absolute */
  502. #define N_DEBUG ((short)-2)     /* debugging symbol -- value is meaningless */
  503. #define N_TV    ((short)-3)     /* indicates symbol needs preload transfer vector */
  504. #define P_TV    ((short)-4)     /* indicates symbol needs postload transfer vector*/
  505.  
  506. /* Type of a symbol, in low N bits of the word.  */
  507.  
  508. #define T_NULL          0
  509. #define T_VOID          1       /* function argument (only used by compiler) */
  510. #define T_CHAR          2       /* character            */
  511. #define T_SHORT         3       /* short integer        */
  512. #define T_INT           4       /* integer              */
  513. #define T_LONG          5       /* long integer         */
  514. #define T_FLOAT         6       /* floating point       */
  515. #define T_DOUBLE        7       /* double word          */
  516. #define T_STRUCT        8       /* structure            */
  517. #define T_UNION         9       /* union                */
  518. #define T_ENUM          10      /* enumeration          */
  519. #define T_MOE           11      /* member of enumeration*/
  520. #define T_UCHAR         12      /* unsigned character   */
  521. #define T_USHORT        13      /* unsigned short       */
  522. #define T_UINT          14      /* unsigned integer     */
  523. #define T_ULONG         15      /* unsigned long        */
  524. #define T_LNGDBL        16      /* long double          */
  525.  
  526. /* Derived types, in n_type.  */
  527.  
  528. #define DT_NON          (0)     /* no derived type */
  529. #define DT_PTR          (1)     /* pointer */
  530. #define DT_FCN          (2)     /* function */
  531. #define DT_ARY          (3)     /* array */
  532.  
  533. #define BTYPE(x)        ((x) & N_BTMASK)
  534. #define DTYPE(x)        (((x) & N_TMASK) >> N_BTSHFT)
  535.  
  536. #define ISPTR(x) \
  537.   (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_PTR << N_BTSHFT))
  538. #define ISFCN(x) \
  539.   (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_FCN << N_BTSHFT))
  540. #define ISARY(x) \
  541.   (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_ARY << N_BTSHFT))
  542. #define ISTAG(x) \
  543.   ((x) == C_STRTAG || (x) == C_UNTAG || (x) == C_ENTAG)
  544. #define DECREF(x) \
  545.   ((((x) >> N_TSHIFT) & ~ N_BTMASK) | ((x) & N_BTMASK))
  546.  
  547. union internal_auxent
  548. {
  549.   struct
  550.   {
  551.  
  552.     union
  553.     {
  554.       long l;                   /* str, un, or enum tag indx */
  555.       struct coff_ptr_struct *p;
  556.     }     x_tagndx;
  557.  
  558.     union
  559.     {
  560.       struct
  561.       {
  562.         unsigned short x_lnno;  /* declaration line number */
  563.         unsigned short x_size;  /* str/union/array size */
  564.       }      x_lnsz;
  565.       long x_fsize;             /* size of function */
  566.     }     x_misc;
  567.  
  568.     union
  569.     {
  570.       struct
  571.       {                         /* if ISFCN, tag, or .bb */
  572.         bfd_signed_vma x_lnnoptr;               /* ptr to fcn line # */
  573.         union
  574.         {                       /* entry ndx past block end */
  575.           long l;
  576.           struct coff_ptr_struct *p;
  577.         }     x_endndx;
  578.       }      x_fcn;
  579.  
  580.       struct
  581.       {                         /* if ISARY, up to 4 dimen. */
  582.         unsigned short x_dimen[DIMNUM];
  583.       }      x_ary;
  584.     }     x_fcnary;
  585.  
  586.     unsigned short x_tvndx;     /* tv index */
  587.   }      x_sym;
  588.  
  589.   union
  590.   {
  591.     /* PR 17754: We use to FILNMLEN for the size of the x_fname
  592.        array, but that cause problems as PE targets use a larger
  593.        value.  We cannot use their definition of EFILNMLEN as this
  594.        header can be used without including any PE headers.  */
  595.     char x_fname[20];
  596.     struct
  597.     {
  598.       long x_zeroes;
  599.       long x_offset;
  600.     }      x_n;
  601.   }     x_file;
  602.  
  603.   struct
  604.   {
  605.     long x_scnlen;              /* section length */
  606.     unsigned short x_nreloc;    /* # relocation entries */
  607.     unsigned short x_nlinno;    /* # line numbers */
  608.     unsigned long x_checksum;   /* section COMDAT checksum for PE */
  609.     unsigned short x_associated; /* COMDAT associated section index for PE */
  610.     unsigned char x_comdat;     /* COMDAT selection number for PE */
  611.   }      x_scn;
  612.  
  613.   struct
  614.   {
  615.     long x_tvfill;              /* tv fill value */
  616.     unsigned short x_tvlen;     /* length of .tv */
  617.     unsigned short x_tvran[2];  /* tv range */
  618.   }      x_tv;                  /* info about .tv section (in auxent of symbol .tv)) */
  619.  
  620.   /******************************************
  621.    * RS/6000-specific auxent - last auxent for every external symbol
  622.    ******************************************/
  623.   struct
  624.   {
  625.     union
  626.       {                         /* csect length or enclosing csect */
  627.         bfd_signed_vma l;
  628.         struct coff_ptr_struct *p;
  629.       } x_scnlen;
  630.     long x_parmhash;            /* parm type hash index */
  631.     unsigned short x_snhash;    /* sect num with parm hash */
  632.     unsigned char x_smtyp;      /* symbol align and type */
  633.     /* 0-4 - Log 2 of alignment */
  634.     /* 5-7 - symbol type */
  635.     unsigned char x_smclas;     /* storage mapping class */
  636.     long x_stab;                /* dbx stab info index */
  637.     unsigned short x_snstab;    /* sect num with dbx stab */
  638.   }      x_csect;               /* csect definition information */
  639.  
  640. /* x_smtyp values:  */
  641.  
  642. #define SMTYP_ALIGN(x)  ((x) >> 3)      /* log2 of alignment */
  643. #define SMTYP_SMTYP(x)  ((x) & 0x7)     /* symbol type */
  644. /* Symbol type values:  */
  645. #define XTY_ER  0               /* External reference */
  646. #define XTY_SD  1               /* Csect definition */
  647. #define XTY_LD  2               /* Label definition */
  648. #define XTY_CM  3               /* .BSS */
  649. #define XTY_EM  4               /* Error message */
  650. #define XTY_US  5               /* "Reserved for internal use" */
  651.  
  652. /* x_smclas values:  */
  653.  
  654. #define XMC_PR  0               /* Read-only program code */
  655. #define XMC_RO  1               /* Read-only constant */
  656. #define XMC_DB  2               /* Read-only debug dictionary table */
  657. #define XMC_TC  3               /* Read-write general TOC entry */
  658. #define XMC_UA  4               /* Read-write unclassified */
  659. #define XMC_RW  5               /* Read-write data */
  660. #define XMC_GL  6               /* Read-only global linkage */
  661. #define XMC_XO  7               /* Read-only extended operation */
  662. #define XMC_SV  8               /* Read-only supervisor call */
  663. #define XMC_BS  9               /* Read-write BSS */
  664. #define XMC_DS  10              /* Read-write descriptor csect */
  665. #define XMC_UC  11              /* Read-write unnamed Fortran common */
  666. #define XMC_TI  12              /* Read-only traceback index csect */
  667. #define XMC_TB  13              /* Read-only traceback table csect */
  668. /*              14      ??? */
  669. #define XMC_TC0 15              /* Read-write TOC anchor */
  670. #define XMC_TD  16              /* Read-write data in TOC */
  671.  
  672.   /******************************************
  673.    *  I960-specific *2nd* aux. entry formats
  674.    ******************************************/
  675.   struct
  676.   {
  677.     /* This is a very old typo that keeps getting propagated. */
  678. #define x_stdindx x_stindx
  679.     long x_stindx;              /* sys. table entry */
  680.   }      x_sc;                  /* system call entry */
  681.  
  682.   struct
  683.   {
  684.     unsigned long x_balntry;    /* BAL entry point */
  685.   }      x_bal;                 /* BAL-callable function */
  686.  
  687.   struct
  688.   {
  689.     unsigned long x_timestamp;  /* time stamp */
  690.     char x_idstring[20];        /* producer identity string */
  691.   }      x_ident;               /* Producer ident info */
  692.  
  693. };
  694.  
  695. /********************** RELOCATION DIRECTIVES **********************/
  696.  
  697. struct internal_reloc
  698. {
  699.   bfd_vma r_vaddr;              /* Virtual address of reference */
  700.   long r_symndx;                /* Index into symbol table      */
  701.   unsigned short r_type;        /* Relocation type              */
  702.   unsigned char r_size;         /* Used by RS/6000 and ECOFF    */
  703.   unsigned char r_extern;       /* Used by ECOFF                */
  704.   unsigned long r_offset;       /* Used by Alpha ECOFF, SPARC, others */
  705. };
  706.  
  707. /* X86-64 relocations.  */
  708. #define R_AMD64_ABS              0 /* Reference is absolute, no relocation is necessary.  */
  709. #define R_AMD64_DIR64            1 /* 64-bit address (VA).  */
  710. #define R_AMD64_DIR32            2 /* 32-bit address (VA) R_DIR32.  */
  711. #define R_AMD64_IMAGEBASE        3 /* 32-bit absolute ref w/o base R_IMAGEBASE.  */
  712. #define R_AMD64_PCRLONG          4 /* 32-bit relative address from byte following reloc R_PCRLONG.  */
  713. #define R_AMD64_PCRLONG_1        5 /* 32-bit relative address from byte distance 1 from reloc.  */
  714. #define R_AMD64_PCRLONG_2        6 /* 32-bit relative address from byte distance 2 from reloc.  */
  715. #define R_AMD64_PCRLONG_3        7 /* 32-bit relative address from byte distance 3 from reloc.  */
  716. #define R_AMD64_PCRLONG_4        8 /* 32-bit relative address from byte distance 4 from reloc.  */
  717. #define R_AMD64_PCRLONG_5        9 /* 32-bit relative address from byte distance 5 from reloc.  */
  718. #define R_AMD64_SECTION         10 /* Section index.  */
  719. #define R_AMD64_SECREL          11 /* 32 bit offset from base of section containing target R_SECREL.  */
  720. #define R_AMD64_SECREL7         12 /* 7 bit unsigned offset from base of section containing target.  */
  721. #define R_AMD64_TOKEN           13 /* 32 bit metadata token.  */
  722. #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.  */
  723.  
  724. /* i386 Relocations.  */
  725.  
  726. #define R_DIR16          1
  727. #define R_REL24          5
  728. #define R_DIR32          6
  729. #define R_IMAGEBASE      7
  730. #define R_SECREL32      11
  731. #define R_RELBYTE       15
  732. #define R_RELWORD       16
  733. #define R_RELLONG       17
  734. #define R_PCRBYTE       18
  735. #define R_PCRWORD       19
  736. #define R_PCRLONG       20
  737. #define R_PCR24         21
  738. #define R_IPRSHORT      24
  739. #define R_IPRLONG       26
  740. #define R_GETSEG        29
  741. #define R_GETPA         30
  742. #define R_TAGWORD       31
  743. #define R_JUMPTARG      32      /* strange 29k 00xx00xx reloc */
  744. #define R_PARTLS16      32
  745. #define R_PARTMS8       33
  746.  
  747. #define R_PCR16L       128
  748. #define R_PCR26L       129
  749. #define R_VRT16        130
  750. #define R_HVRT16       131
  751. #define R_LVRT16       132
  752. #define R_VRT32        133
  753.  
  754.  
  755. /* This reloc identifies mov.b instructions with a 16bit absolute
  756.    address.  The linker tries to turn insns with this reloc into
  757.    an absolute 8-bit address.  */
  758. #define R_MOV16B1       0x41
  759.  
  760. /* This reloc identifies mov.b instructions which had a 16bit
  761.    absolute address which have been shortened into a 8-bit
  762.    absolute address.  */
  763. #define R_MOV16B2       0x42
  764.  
  765. /* This reloc identifies jmp insns with a 16bit target address;
  766.    the linker tries to turn these insns into bra insns with
  767.    an 8bit pc-relative target.  */
  768. #define R_JMP1          0x43
  769.  
  770. /* This reloc identifies a bra with an 8-bit pc-relative
  771.    target that was formerly a jmp insn with a 16bit target.  */
  772. #define R_JMP2          0x44
  773.  
  774. /* ??? */
  775. #define R_RELLONG_NEG   0x45
  776.  
  777. /* This reloc identifies jmp insns with a 24bit target address;
  778.    the linker tries to turn these insns into bra insns with
  779.    an 8bit pc-relative target.  */
  780. #define R_JMPL1         0x46
  781.  
  782. /* This reloc identifies a bra with an 8-bit pc-relative
  783.    target that was formerly a jmp insn with a 24bit target.  */
  784. #define R_JMPL2         0x47
  785.  
  786. /* This reloc identifies mov.b instructions with a 24bit absolute
  787.    address.  The linker tries to turn insns with this reloc into
  788.    an absolute 8-bit address.  */
  789.  
  790. #define R_MOV24B1       0x48
  791.  
  792. /* This reloc identifies mov.b instructions which had a 24bit
  793.    absolute address which have been shortened into a 8-bit
  794.    absolute address.  */
  795. #define R_MOV24B2       0x49
  796.  
  797. /* An h8300 memory indirect jump/call.  Forces the address of the jump/call
  798.    target into the function vector (in page zero), and the address of the
  799.    vector entry to be placed in the jump/call instruction.  */
  800. #define R_MEM_INDIRECT  0x4a
  801.  
  802. /* This reloc identifies a 16bit pc-relative branch target which was
  803.    shortened into an 8bit pc-relative branch target.  */
  804. #define R_PCRWORD_B     0x4b
  805.  
  806. /* This reloc identifies mov.[wl] instructions with a 32/24 bit
  807.    absolute address; the linker may turn this into a mov.[wl]
  808.    insn with a 16bit absolute address.  */
  809. #define R_MOVL1         0x4c
  810.  
  811. /* This reloc identifies mov.[wl] insns which formerly had
  812.    a 32/24bit absolute address and now have a 16bit absolute address.  */
  813. #define R_MOVL2         0x4d
  814.  
  815. /* This reloc identifies a bCC:8 which will have it's condition
  816.    inverted and its target redirected to the target of the branch
  817.    in the following insn.  */
  818. #define R_BCC_INV       0x4e
  819.  
  820. /* This reloc identifies a jmp instruction that has been deleted.  */
  821. #define R_JMP_DEL       0x4f
  822.  
  823. /* Z8k modes */
  824. #define R_IMM16   0x01          /* 16 bit abs */
  825. #define R_JR      0x02          /* jr  8 bit disp */
  826. #define R_IMM4L   0x23          /* low nibble */
  827. #define R_IMM8    0x22          /* 8 bit abs */
  828. #define R_IMM32   R_RELLONG     /* 32 bit abs */
  829. #define R_CALL    R_DA          /* Absolute address which could be a callr */
  830. #define R_JP      R_DA          /* Absolute address which could be a jp */
  831. #define R_REL16   0x04          /* 16 bit PC rel */
  832. #define R_CALLR   0x05          /* callr 12 bit disp */
  833. #define R_SEG     0x10          /* set if in segmented mode */
  834. #define R_IMM4H   0x24          /* high nibble */
  835. #define R_DISP7   0x25          /* djnz displacement */
  836.  
  837. /* Z80 modes */
  838. #define R_OFF8    0x32          /* 8 bit signed abs, for (i[xy]+d) */
  839. #define R_IMM24   0x33          /* 24 bit abs */
  840. /* R_JR, R_IMM8, R_IMM16, R_IMM32 - as for Z8k */
  841.  
  842. /* H8500 modes */
  843.  
  844. #define R_H8500_IMM8    1               /*  8 bit immediate     */
  845. #define R_H8500_IMM16   2               /* 16 bit immediate     */
  846. #define R_H8500_PCREL8  3               /*  8 bit pcrel         */
  847. #define R_H8500_PCREL16 4               /* 16 bit pcrel         */
  848. #define R_H8500_HIGH8   5               /* high 8 bits of 24 bit address */
  849. #define R_H8500_LOW16   7               /* low 16 bits of 24 bit immediate */
  850. #define R_H8500_IMM24   6               /* 24 bit immediate */
  851. #define R_H8500_IMM32   8               /* 32 bit immediate */
  852. #define R_H8500_HIGH16  9               /* high 16 bits of 32 bit immediate */
  853.  
  854. /* W65 modes */
  855.  
  856. #define R_W65_ABS8      1  /* addr & 0xff               */
  857. #define R_W65_ABS16     2  /* addr & 0xffff             */
  858. #define R_W65_ABS24     3  /* addr & 0xffffff           */
  859.  
  860. #define R_W65_ABS8S8    4  /* (addr >> 8) & 0xff        */
  861. #define R_W65_ABS8S16   5  /* (addr >> 16) & 0xff       */
  862.  
  863. #define R_W65_ABS16S8   6  /* (addr >> 8) & 0ffff       */
  864. #define R_W65_ABS16S16  7  /* (addr >> 16) & 0ffff      */
  865.  
  866. #define R_W65_PCR8      8
  867. #define R_W65_PCR16     9
  868.  
  869. #define R_W65_DP       10  /* direct page 8 bits only   */
  870.  
  871. #endif /* GNU_COFF_INTERNAL_H */
  872.