/* MS has stored all its debug information in a set of structures
 * which has been rather consistent across the years (ie you can grasp
 * some continuity, and not so many drastic changes).
 *
 * A bit of history on the various formats
 *      MSVC 1.0        PDB v1 (new format for debug info)
 *      MSVC 2.0        Inclusion in link of debug info (PDB v2)
 *      MSVC 5.0        Types are 24 bits (instead of 16 for <= 4.x)
 *      MSVC x.0        PDB (change in internal streams layout)
 *
 *      .DBG            Contains COFF, FPO and Codeview info
 *      .PDB            New format for debug info (information is
 *                      derived from Codeview information)
 *      VCx0.PDB        x major MSVC number, stores types, while
 *                      <project>.PDB stores symbols.
 *
 * Debug information can either be found in the debug section of a PE
 * module (in something close to a .DBG file), or the debug section
 * can actually refer to an external file, which can be in turn,
 * either a .DBG or .PDB file.
 *
 * Regarding PDB files:
 * -------------------
 * They are implemented as a set of internal files (as a small file
 * system). The file is split into blocks, an internal file is made
 * of a set of blocks. Internal files are accessed through
 * numbers. For example,
 * 1/ is the ROOT (basic information on the file)
 * 2/ is the Symbol information (global symbols, local variables...)
 * 3/ is the Type internal file (each the symbols can have type
 * information associated with it).
 *
 * Over the years, three formats existed for the PDB:
 * - ?? was rather linked to 16 bit code (our support shall be rather
 *   bad)
 * - JG: it's the signature embedded in the file header. This format
 *   has been used in MSVC 2.0 => 5.0.
 * - DS: it's the signature embedded in the file header. It's the
 *   current format supported my MS.
 *
 * Types internal stream
 * ---------------------
 * Types (from the Type internal file) have existed in three flavors
 * (note that those flavors came as historical evolution, but there
 * isn't a one to one link between types evolution and PDB formats'
 * evolutions:
 * - the first flavor (suffixed by V1 in this file), where the types
 *   and subtypes are 16 bit entities; and where strings are in Pascal
 *   format (first char is their length and are not 0 terminated)
 * - the second flavor (suffixed by V2) differs from first flavor with
 *   types and subtypes as 32 bit entities. This forced some
 *   reordering of fields in some types
 * - the third flavor (suffixed by V3) differs from second flavor with
 *   strings stored as C strings (ie are 0 terminated, instead of
 *   length prefixed)
 * The different flavors can coexist in the same file (is this really
 * true ??)
 *
 * For the evolution of types, the need of the second flavor was the
 * number of types to be defined (limited to 0xFFFF, including the C
 * basic types); the need of the third flavor is the increase of
 * symbol size (to be greater than 256), which was likely needed for
 * complex C++ types (nested + templates).
 *
 * It's somehow difficult to represent the layout of those types on
 * disk because:
 * - some integral values are stored as numeric leaf, which size is
 *   variable depending on its value
 *
 * Symbols internal stream
 * -----------------------
 * Here also we find three flavors (that we've suffixed with _V1, _V2
 * and _V3) even if their evolution is closer to the evolution of
 * types, they are not completely linked together.
 */

#pragma pack(push, 1)

/* ======================================== *
 *             Type information
 * ======================================== */

struct p_string
{
    unsigned char               namelen;
    char                        name[1];
};

union codeview_type
{
    struct
    {
        unsigned short int      len;
        short int               id;
    } generic;

    struct
    {
        unsigned short int      len;
        short int               id;
        short int               attribute;
        short int               type;
    } modifier_v1;

    struct
    {
        unsigned short int      len;
        short int               id;
        int                     type;
        short int               attribute;
    } modifier_v2;

    struct
    {
        unsigned short int      len;
        short int               id;
        short int               attribute;
        short int               datatype;
        struct p_string         p_name;
    } pointer_v1;

    struct
    {
        unsigned short int      len;
        short int               id;
        unsigned int            datatype;
        unsigned int            attribute;
        struct p_string         p_name;
    } pointer_v2;

    struct
    {
        unsigned short int      len;
        short int               id;
        short int               elemtype;
        short int               idxtype;
        unsigned short int      arrlen;     /* numeric leaf */
#if 0
        struct p_string         p_name;
#endif
    } array_v1;

    struct
    {
        unsigned short int      len;
        short int               id;
        unsigned int            elemtype;
        unsigned int            idxtype;
        unsigned short int      arrlen;    /* numeric leaf */
#if 0
        struct p_string         p_name;
#endif
    } array_v2;

    struct
    {
        unsigned short int      len;
        short int               id;
        unsigned int            elemtype;
        unsigned int            idxtype;
        unsigned short int      arrlen;    /* numeric leaf */
#if 0
        char                    name[1];
#endif
    } array_v3;

    struct
    {
        unsigned short int      len;
        short int               id;
        short int               n_element;
        short int               fieldlist;
        short int               property;
        short int               derived;
        short int               vshape;
        unsigned short int      structlen;  /* numeric leaf */
#if 0
        struct p_string         p_name;
#endif
    } struct_v1;

    struct
    {
        unsigned short int      len;
        short int               id;
        short int               n_element;
        short int               property;
        unsigned int            fieldlist;
        unsigned int            derived;
        unsigned int            vshape;
        unsigned short int      structlen;  /* numeric leaf */
#if 0
        struct p_string         p_name;
#endif
    } struct_v2;

    struct
    {
        unsigned short int      len;
        short int               id;
        short int               n_element;
        short int               property;
        unsigned int            fieldlist;
        unsigned int            derived;
        unsigned int            vshape;
        unsigned short int      structlen;  /* numeric leaf */
#if 0
        char                    name[1];
#endif
    } struct_v3;

    struct
    {
        unsigned short int      len;
        short int               id;
        short int               count;
        short int               fieldlist;
        short int               property;
        unsigned short int      un_len;     /* numeric leaf */
#if 0
        struct p_string         p_name;
#endif
    } union_v1;

    struct
    {
        unsigned short int      len;
        short int               id;
        short int               count;
        short int               property;
        unsigned int            fieldlist;
        unsigned short int      un_len;     /* numeric leaf */
#if 0
        struct p_string         p_name;
#endif
    } union_v2;

    struct
    {
        unsigned short int      len;
        short int               id;
        short int               count;
        short int               property;
        unsigned int            fieldlist;
        unsigned short int      un_len;     /* numeric leaf */
#if 0
        char                    name[1];
#endif
    } union_v3;

    struct
    {
        unsigned short int      len;
        short int               id;
        short int               count;
        short int               type;
        short int               fieldlist;
        short int               property;
        struct p_string         p_name;
    } enumeration_v1;

    struct
    {
        unsigned short int      len;
        short int               id;
        short int               count;
        short int               property;
        unsigned int            type;
        unsigned int            fieldlist;
        struct p_string         p_name;
    } enumeration_v2;

    struct
    {
        unsigned short int      len;
        short int               id;
        short int               count;
        short int               property;
        unsigned int            type;
        unsigned int            fieldlist;
        char                    name[1];
    } enumeration_v3;

    struct
    {
        unsigned short int      len;
        short int               id;
        unsigned short int      rvtype;
        unsigned char           call;
        unsigned char           reserved;
        unsigned short int      params;
        unsigned short int      arglist;
    } procedure_v1;

    struct
    {
        unsigned short int      len;
        short int               id;
        unsigned int            rvtype;
        unsigned char           call;
        unsigned char           reserved;
        unsigned short int      params;
        unsigned int            arglist;
    } procedure_v2;

    struct
    {
        unsigned short int      len;
        short int               id;
        unsigned short int      rvtype;
        unsigned short int      class_type;
        unsigned short int      this_type;
        unsigned char           call;
        unsigned char           reserved;
        unsigned short int      params;
        unsigned short int      arglist;
        unsigned int            this_adjust;
    } mfunction_v1;

    struct
    {
        unsigned short int      len;
        short int               id;
        unsigned int            rvtype;
        unsigned int            class_type;
        unsigned                this_type;
        unsigned char           call;
        unsigned char           reserved;
        unsigned short          params;
        unsigned int            arglist;
        unsigned int            this_adjust;
    } mfunction_v2;
};

union codeview_reftype
{
    struct
    {
        unsigned short int      len;
        short int               id;
    } generic;

    struct
    {
        unsigned short int      len;
        short int               id;
        unsigned char           list[1];
    } fieldlist;

    struct
    {
        unsigned short int      len;
        short int               id;
        unsigned char           nbits;
        unsigned char           bitoff;
        unsigned short          type;
    } bitfield_v1;

    struct
    {
        unsigned short int      len;
        short int               id;
        unsigned int            type;
        unsigned char           nbits;
        unsigned char           bitoff;
    } bitfield_v2;

    struct
    {
        unsigned short int      len;
        short int               id;
        unsigned short          num;
        unsigned short          args[1];
    } arglist_v1;

    struct
    {
        unsigned short int      len;
        short int               id;
        unsigned                num;
        unsigned                args[1];
    } arglist_v2;

    struct
    {
        unsigned short int      len;
        short int               id;
        unsigned short          num;
        unsigned short          drvdcls[1];
    } derived_v1;

    struct
    {
        unsigned short int      len;
        short int               id;
        unsigned                num;
        unsigned                drvdcls[1];
    } derived_v2;
};

union codeview_fieldtype
{
    struct
    {
        short int		id;
    } generic;

    struct
    {
        short int		id;
        short int		type;
        short int		attribute;
        unsigned short int	offset;     /* numeric leaf */
    } bclass_v1;

    struct
    {
        short int		id;
        short int		attribute;
        unsigned int	        type;
        unsigned short int	offset;     /* numeric leaf */
    } bclass_v2;

    struct
    {
        short int		id;
        short int		btype;
        short int		vbtype;
        short int		attribute;
        unsigned short int	vbpoff;     /* numeric leaf */
#if 0
        unsigned short int	vboff;      /* numeric leaf */
#endif
    } vbclass_v1;

    struct
    {
        short int		id;
        short int		attribute;
        unsigned int	        btype;
        unsigned int	        vbtype;
        unsigned short int	vbpoff;     /* numeric leaf */
#if 0
        unsigned short int	vboff;      /* numeric leaf */
#endif
    } vbclass_v2;

    struct
    {
        short int		id;
        short int		attribute;
        unsigned short int	value;     /* numeric leaf */
#if 0
        struct p_string         p_name;
#endif
    } enumerate_v1;

   struct
    {
        short int               id;
        short int               attribute;
        unsigned short int      value;     /* numeric leaf */
#if 0
        char                    name[1];
#endif
    } enumerate_v3;

    struct
    {
        short int		id;
        short int		type;
        struct p_string         p_name;
    } friendfcn_v1;

    struct
    {
        short int		id;
        short int		_pad0;
        unsigned int	        type;
        struct p_string         p_name;
    } friendfcn_v2;

    struct
    {
        short int		id;
        short int		type;
        short int		attribute;
        unsigned short int	offset;    /* numeric leaf */
#if 0
        struct p_string         p_name;
#endif
    } member_v1;

    struct
    {
        short int		id;
        short int		attribute;
        unsigned int	        type;
        unsigned short int	offset;    /* numeric leaf */
#if 0
        struct p_string         p_name;
#endif
    } member_v2;

    struct
    {
        short int               id;
        short int               attribute;
        unsigned int            type;
        unsigned short int      offset; /* numeric leaf */
#if 0
        unsigned char           name[1];
#endif
    }
    member_v3;

    struct
    {
        short int		id;
        short int		type;
        short int		attribute;
        struct p_string         p_name;
    } stmember_v1;

    struct
    {
        short int		id;
        short int		attribute;
        unsigned int	        type;
        struct p_string         p_name;
    } stmember_v2;

    struct
    {
        short int		id;
        short int		attribute;
        unsigned int	        type;
        char                    name[1];
    } stmember_v3;

    struct
    {
        short int		id;
        short int		count;
        short int		mlist;
        struct p_string         p_name;
    } method_v1;

    struct
    {
        short int		id;
        short int		count;
        unsigned int	        mlist;
        struct p_string         p_name;
    } method_v2;

    struct
    {
        short int		id;
        short int		count;
        unsigned int	        mlist;
        char                    name[1];
    } method_v3;

    struct
    {
        short int		id;
        short int		type;
        struct p_string         p_name;
    } nesttype_v1;

    struct
    {
        short int		id;
        short int		_pad0;
        unsigned int	        type;
        struct p_string         p_name;
    } nesttype_v2;

    struct
    {
        short int		id;
        short int		_pad0;
        unsigned int	        type;
        char                    name[1];
    } nesttype_v3;

    struct
    {
        short int		id;
        short int		type;
    } vfunctab_v1;

    struct
    {
        short int		id;
        short int		_pad0;
        unsigned int	        type;
    } vfunctab_v2;

    struct
    {
        short int		id;
        short int		type;
    } friendcls_v1;

    struct
    {
        short int		id;
        short int		_pad0;
        unsigned int	        type;
    } friendcls_v2;

    struct
    {
        short int		id;
        short int		attribute;
        short int		type;
        struct p_string         p_name;
    } onemethod_v1;

    struct
    {
        short int		id;
        short int		attribute;
        unsigned int 	        type;
        struct p_string         p_name;
    } onemethod_v2;

    struct
    {
        short int		id;
        short int		attribute;
        unsigned int 	        type;
        char                    name[1];
    } onemethod_v3;

    struct
    {
        short int		id;
        short int		attribute;
        short int		type;
        unsigned int	        vtab_offset;
        struct p_string         p_name;
    } onemethod_virt_v1;

    struct
    {
        short int		id;
        short int		attribute;
        unsigned int	        type;
        unsigned int	        vtab_offset;
        struct p_string         p_name;
    } onemethod_virt_v2;

    struct
    {
        short int		id;
        short int		attribute;
        unsigned int	        type;
        unsigned int	        vtab_offset;
        char                    name[1];
    } onemethod_virt_v3;

    struct
    {
        short int		id;
        short int		type;
        unsigned int	        offset;
    } vfuncoff_v1;

    struct
    {
        short int		id;
        short int		_pad0;
        unsigned int	        type;
        unsigned int	        offset;
    } vfuncoff_v2;

    struct
    {
        short int		id;
        short int		attribute;
        short int		type;
        struct p_string         p_name;
    } nesttypeex_v1;

    struct
    {
        short int		id;
        short int		attribute;
        unsigned int	        type;
        struct p_string         p_name;
    } nesttypeex_v2;

    struct
    {
        short int		id;
        short int		attribute;
        unsigned int	        type;
        struct p_string         p_name;
    } membermodify_v2;

    struct
    {
        short int               id;
        short int               ref;
    } index_v1;

    struct
    {
        short int               id;
        short int               unk;
        unsigned int            ref;
    } index_v2;
};


/*
 * This covers the basic datatypes that VC++ seems to be using these days.
 * 32 bit mode only.  There are additional numbers for the pointers in 16
 * bit mode.  There are many other types listed in the documents, but these
 * are apparently not used by the compiler, or represent pointer types
 * that are not used.
 *
 * Official MS documentation says that type (< 0x4000, so 12 bits) is made of:
 *        +----------+------+------+----------+------+
 *        |    11    | 10-8 | 7-4  |     3    | 2-0  |
 *        +----------+------+------+----------+------+
 *        | reserved | mode | type | reserved | size |
 *        +----------+------+------+----------+------+
 * In recent PDB files, type 8 exists, and is seen as an HRESULT... So we've
 * added this basic type... as if bit 3 had been integrated into the size field
 */

/* the type number of a built-in type is a 16-bit value specified in the following format:
    bit #   |   11     |   10-8   |   7-4    |    3     |    2-0   |
    field   | reserved |   mode   |   type   | reserved |   size   |

    where
        <type> is one of the following types:
                0x00 Special
                0x01 Signed integral value
                0x02 Unsigned integral value
                0x03 Boolean
                0x04 Real
                0x05 Complex
                0x06 Special2
                0x07 Real int value
                0x08 Reserved
                0x09 Reserved
                0x0a Reserved
                0x0b Reserved
                0x0c Reserved
                0x0d Reserved
                0x0e Reserved
                0x0f Reserved for debugger expression evaluator

        <size> is an enumerated value for each of the types.
                Type = special
                    0x00 No type
                    0x01 Absolute symbol
                    0x02 Segment
                    0x03 Void
                    0x04 Basic 8-byte currency value
                    0x05 Near Basic string
                    0x06 Far Basic string
                    0x07 Untranslated type from previous Microsoft symbol formats
                Type = signed/unsigned integral and Boolean values
                    0x00 1 byte
                    0x01 2 byte
                    0x02 4 byte
                    0x03 8 byte
                    0x04 Reserved
                    0x05 Reserved
                    0x06 Reserved
                    0x07 Reserved
                Type = real and complex
                    0x00 32 bit
                    0x01 64 bit
                    0x02 80 bit
                    0x03 128 bit
                    0x04 48 bit
                    0x05 Reserved
                    0x06 Reserved
                    0x07 Reserved
                Type = special2
                    0x00 Bit
                    0x01 Pascal CHAR
                Type = Real int
                    0x00 Char
                    0x01 Wide character
                    0x02 2-byte signed integer
                    0x03 2-byte unsigned integer
                    0x04 4-byte signed integer
                    0x05 4-byte unsigned integer
                    0x06 8-byte signed integer
                    0x07 8-byte unsigned integer

            <mode> is the pointer mode:
                0x00 Direct; not a pointer
                0x01 Near pointer
                0x02 Far pointer
                0x03 Huge pointer
                0x04 32-bit near pointer
                0x05 32-bit far pointer
                0x06 64-bit near pointer
                0x07 Reserved
*/

/* basic types */
#define T_NOTYPE            0x0000  /* Notype */
#define T_ABS               0x0001  /* Abs */
#define T_SEGMENT           0x0002  /* segment type */
#define T_VOID              0x0003  /* Void */
#define T_CURRENCY          0x0004  /* basic 8-byte currency value */
#define T_NBASICSTR         0x0005  /* near basic string */
#define T_FBASICSTR         0x0006  /* far basic string */
#define T_NOTTRANS          0x0007  /* untranslated type record from MS symbol format */
#define T_HRESULT           0x0008  /* HRESULT - or error code ??? */
#define T_CHAR              0x0010  /* signed char */
#define T_SHORT             0x0011  /* short */
#define T_LONG              0x0012  /* long */
#define T_QUAD              0x0013  /* long long */
#define T_UCHAR             0x0020  /* unsigned  char */
#define T_USHORT            0x0021  /* unsigned short */
#define T_ULONG             0x0022  /* unsigned long */
#define T_UQUAD             0x0023  /* unsigned long long */
#define T_BOOL08            0x0030  /* 8-bit boolean */
#define T_BOOL16            0x0031  /* 16-bit boolean */
#define T_BOOL32            0x0032  /* 32-bit boolean */
#define T_BOOL64            0x0033  /* 64-bit boolean */
#define T_REAL32            0x0040  /* float */
#define T_REAL64            0x0041  /* double */
#define T_REAL80            0x0042  /* 80-bit real */
#define T_REAL128           0x0043  /* 128-bit real */
#define T_REAL48            0x0044  /* 48-bit real */
#define T_CPLX32            0x0050  /* 32-bit complex number */
#define T_CPLX64            0x0051  /* 64-bit complex number */
#define T_CPLX80            0x0052  /* 80-bit complex number */
#define T_CPLX128           0x0053  /* 128-bit complex number */
#define T_BIT               0x0060  /* bit */
#define T_PASCHAR           0x0061  /* pascal CHAR */
#define T_RCHAR             0x0070  /* real char */
#define T_WCHAR             0x0071  /* wide char */
#define T_INT2              0x0072  /* real 16-bit signed int */
#define T_UINT2             0x0073  /* real 16-bit unsigned int */
#define T_INT4              0x0074  /* int */
#define T_UINT4             0x0075  /* unsigned int */
#define T_INT8              0x0076  /* 64-bit signed int */
#define T_UINT8             0x0077  /* 64-bit unsigned int */
#define T_CHAR16            0x007a  /* 16-bit unicode char */
#define T_CHAR32            0x007b  /* 32-bit unicode char */

/* near pointers to basic types */
#define T_PVOID             0x0103  /* near pointer to void */
#define T_PCHAR             0x0110  /* Near pointer to 8-bit signed */
#define T_PSHORT            0x0111  /* Near pointer to 16-bit signed */
#define T_PLONG             0x0112  /* Near pointer to 32-bit signed */
#define T_PQUAD             0x0113  /* Near pointer to 64-bit signed */
#define T_PUCHAR            0x0120  /* Near pointer to 8-bit unsigned */
#define T_PUSHORT           0x0121  /* Near pointer to 16-bit unsigned */
#define T_PULONG            0x0122  /* Near pointer to 32-bit unsigned */
#define T_PUQUAD            0x0123  /* Near pointer to 64-bit unsigned */
#define T_PBOOL08           0x0130  /* Near pointer to 8-bit Boolean */
#define T_PBOOL16           0x0131  /* Near pointer to 16-bit Boolean */
#define T_PBOOL32           0x0132  /* Near pointer to 32-bit Boolean */
#define T_PBOOL64           0x0133  /* Near pointer to 64-bit Boolean */
#define T_PREAL32           0x0140  /* Near pointer to 32-bit real */
#define T_PREAL64           0x0141  /* Near pointer to 64-bit real */
#define T_PREAL80           0x0142  /* Near pointer to 80-bit real */
#define T_PREAL128          0x0143  /* Near pointer to 128-bit real */
#define T_PREAL48           0x0144  /* Near pointer to 48-bit real */
#define T_PCPLX32           0x0150  /* Near pointer to 32-bit complex */
#define T_PCPLX64           0x0151  /* Near pointer to 64-bit complex */
#define T_PCPLX80           0x0152  /* Near pointer to 80-bit complex */
#define T_PCPLX128          0x0153  /* Near pointer to 128-bit complex */
#define T_PRCHAR            0x0170  /* Near pointer to a real char */
#define T_PWCHAR            0x0171  /* Near pointer to a wide char */
#define T_PINT2             0x0172  /* Near pointer to 16-bit signed int */
#define T_PUINT2            0x0173  /* Near pointer to 16-bit unsigned int */
#define T_PINT4             0x0174  /* Near pointer to 32-bit signed int */
#define T_PUINT4            0x0175  /* Near pointer to 32-bit unsigned int */
#define T_PINT8             0x0176  /* Near pointer to 64-bit signed int */
#define T_PUINT8            0x0177  /* Near pointer to 64-bit unsigned int */
#define T_PCHAR16           0x017a  /* Near pointer to 16-bit unicode char */
#define T_PCHAR32           0x017b  /* Near pointer to 32-bit unicode char */

/* far pointers to basic types */
#define T_PFVOID            0x0203  /* Far pointer to void */
#define T_PFCHAR            0x0210  /* Far pointer to 8-bit signed */
#define T_PFSHORT           0x0211  /* Far pointer to 16-bit signed */
#define T_PFLONG            0x0212  /* Far pointer to 32-bit signed */
#define T_PFQUAD            0x0213  /* Far pointer to 64-bit signed */
#define T_PFUCHAR           0x0220  /* Far pointer to 8-bit unsigned */
#define T_PFUSHORT          0x0221  /* Far pointer to 16-bit unsigned */
#define T_PFULONG           0x0222  /* Far pointer to 32-bit unsigned */
#define T_PFUQUAD           0x0223  /* Far pointer to 64-bit unsigned */
#define T_PFBOOL08          0x0230  /* Far pointer to 8-bit Boolean */
#define T_PFBOOL16          0x0231  /* Far pointer to 16-bit Boolean */
#define T_PFBOOL32          0x0232  /* Far pointer to 32-bit Boolean */
#define T_PFBOOL64          0x0233  /* Far pointer to 64-bit Boolean */
#define T_PFREAL32          0x0240  /* Far pointer to 32-bit real */
#define T_PFREAL64          0x0241  /* Far pointer to 64-bit real */
#define T_PFREAL80          0x0242  /* Far pointer to 80-bit real */
#define T_PFREAL128         0x0243  /* Far pointer to 128-bit real */
#define T_PFREAL48          0x0244  /* Far pointer to 48-bit real */
#define T_PFCPLX32          0x0250  /* Far pointer to 32-bit complex */
#define T_PFCPLX64          0x0251  /* Far pointer to 64-bit complex */
#define T_PFCPLX80          0x0252  /* Far pointer to 80-bit complex */
#define T_PFCPLX128         0x0253  /* Far pointer to 128-bit complex */
#define T_PFRCHAR           0x0270  /* Far pointer to a real char */
#define T_PFWCHAR           0x0271  /* Far pointer to a wide char */
#define T_PFINT2            0x0272  /* Far pointer to 16-bit signed int */
#define T_PFUINT2           0x0273  /* Far pointer to 16-bit unsigned int */
#define T_PFINT4            0x0274  /* Far pointer to 32-bit signed int */
#define T_PFUINT4           0x0275  /* Far pointer to 32-bit unsigned int */
#define T_PFINT8            0x0276  /* Far pointer to 64-bit signed int */
#define T_PFUINT8           0x0277  /* Far pointer to 64-bit unsigned int */
#define T_PFCHAR16          0x027a  /* Far pointer to 16-bit unicode char */
#define T_PFCHAR32          0x027b  /* Far pointer to 32-bit unicode char */

/* huge pointers to basic types */
#define T_PHVOID            0x0303  /* Huge pointer to void */
#define T_PHCHAR            0x0310  /* Huge pointer to 8-bit signed */
#define T_PHSHORT           0x0311  /* Huge pointer to 16-bit signed */
#define T_PHLONG            0x0312  /* Huge pointer to 32-bit signed */
#define T_PHQUAD            0x0313  /* Huge pointer to 64-bit signed */
#define T_PHUCHAR           0x0320  /* Huge pointer to 8-bit unsigned */
#define T_PHUSHORT          0x0321  /* Huge pointer to 16-bit unsigned */
#define T_PHULONG           0x0322  /* Huge pointer to 32-bit unsigned */
#define T_PHUQUAD           0x0323  /* Huge pointer to 64-bit unsigned */
#define T_PHBOOL08          0x0330  /* Huge pointer to 8-bit Boolean */
#define T_PHBOOL16          0x0331  /* Huge pointer to 16-bit Boolean */
#define T_PHBOOL32          0x0332  /* Huge pointer to 32-bit Boolean */
#define T_PHBOOL64          0x0333  /* Huge pointer to 64-bit Boolean */
#define T_PHREAL32          0x0340  /* Huge pointer to 32-bit real */
#define T_PHREAL64          0x0341  /* Huge pointer to 64-bit real */
#define T_PHREAL80          0x0342  /* Huge pointer to 80-bit real */
#define T_PHREAL128         0x0343  /* Huge pointer to 128-bit real */
#define T_PHREAL48          0x0344  /* Huge pointer to 48-bit real */
#define T_PHCPLX32          0x0350  /* Huge pointer to 32-bit complex */
#define T_PHCPLX64          0x0351  /* Huge pointer to 64-bit complex */
#define T_PHCPLX80          0x0352  /* Huge pointer to 80-bit complex */
#define T_PHCPLX128         0x0353  /* Huge pointer to 128-bit real */
#define T_PHRCHAR           0x0370  /* Huge pointer to a real char */
#define T_PHWCHAR           0x0371  /* Huge pointer to a wide char */
#define T_PHINT2            0x0372  /* Huge pointer to 16-bit signed int */
#define T_PHUINT2           0x0373  /* Huge pointer to 16-bit unsigned int */
#define T_PHINT4            0x0374  /* Huge pointer to 32-bit signed int */
#define T_PHUINT4           0x0375  /* Huge pointer to 32-bit unsigned int */
#define T_PHINT8            0x0376  /* Huge pointer to 64-bit signed int */
#define T_PHUINT8           0x0377  /* Huge pointer to 64-bit unsigned int */
#define T_PHCHAR16          0x037a  /* Huge pointer to 16-bit unicode char */
#define T_PHCHAR32          0x037b  /* Huge pointer to 32-bit unicode char */

/* 32-bit near pointers to basic types */
#define T_32PVOID           0x0403  /* 32-bit near pointer to void */
#define T_32PHRESULT        0x0408  /* 16:32 near pointer to HRESULT - or error code ??? */
#define T_32PCHAR           0x0410  /* 16:32 near pointer to 8-bit signed */
#define T_32PSHORT          0x0411  /* 16:32 near pointer to 16-bit signed */
#define T_32PLONG           0x0412  /* 16:32 near pointer to 32-bit signed */
#define T_32PQUAD           0x0413  /* 16:32 near pointer to 64-bit signed */
#define T_32PUCHAR          0x0420  /* 16:32 near pointer to 8-bit unsigned */
#define T_32PUSHORT         0x0421  /* 16:32 near pointer to 16-bit unsigned */
#define T_32PULONG          0x0422  /* 16:32 near pointer to 32-bit unsigned */
#define T_32PUQUAD          0x0423  /* 16:32 near pointer to 64-bit unsigned */
#define T_32PBOOL08         0x0430  /* 16:32 near pointer to 8-bit Boolean */
#define T_32PBOOL16         0x0431  /* 16:32 near pointer to 16-bit Boolean */
#define T_32PBOOL32         0x0432  /* 16:32 near pointer to 32-bit Boolean */
#define T_32PBOOL64         0x0433  /* 16:32 near pointer to 64-bit Boolean */
#define T_32PREAL32         0x0440  /* 16:32 near pointer to 32-bit real */
#define T_32PREAL64         0x0441  /* 16:32 near pointer to 64-bit real */
#define T_32PREAL80         0x0442  /* 16:32 near pointer to 80-bit real */
#define T_32PREAL128        0x0443  /* 16:32 near pointer to 128-bit real */
#define T_32PREAL48         0x0444  /* 16:32 near pointer to 48-bit real */
#define T_32PCPLX32         0x0450  /* 16:32 near pointer to 32-bit complex */
#define T_32PCPLX64         0x0451  /* 16:32 near pointer to 64-bit complex */
#define T_32PCPLX80         0x0452  /* 16:32 near pointer to 80-bit complex */
#define T_32PCPLX128        0x0453  /* 16:32 near pointer to 128-bit complex */
#define T_32PRCHAR          0x0470  /* 16:32 near pointer to a real char */
#define T_32PWCHAR          0x0471  /* 16:32 near pointer to a wide char */
#define T_32PINT2           0x0472  /* 16:32 near pointer to 16-bit signed int */
#define T_32PUINT2          0x0473  /* 16:32 near pointer to 16-bit unsigned int */
#define T_32PINT4           0x0474  /* 16:32 near pointer to 32-bit signed int */
#define T_32PUINT4          0x0475  /* 16:32 near pointer to 32-bit unsigned int */
#define T_32PINT8           0x0476  /* 16:32 near pointer to 64-bit signed int */
#define T_32PUINT8          0x0477  /* 16:32 near pointer to 64-bit unsigned int */
#define T_32PCHAR16         0x047a  /* 16:32 near pointer to 16-bit unicode char */
#define T_32PCHAR32         0x047b  /* 16:32 near pointer to 32-bit unicode char */

/* 32-bit far pointers to basic types */
#define T_32PFVOID          0x0503  /* 32-bit far pointer to void */
#define T_32PFHRESULT       0x0508  /* 16:32 far pointer to HRESULT - or error code ??? */
#define T_32PFCHAR          0x0510  /* 16:32 far pointer to 8-bit signed */
#define T_32PFSHORT         0x0511  /* 16:32 far pointer to 16-bit signed */
#define T_32PFLONG          0x0512  /* 16:32 far pointer to 32-bit signed */
#define T_32PFQUAD          0x0513  /* 16:32 far pointer to 64-bit signed */
#define T_32PFUCHAR         0x0520  /* 16:32 far pointer to 8-bit unsigned */
#define T_32PFUSHORT        0x0521  /* 16:32 far pointer to 16-bit unsigned */
#define T_32PFULONG         0x0522  /* 16:32 far pointer to 32-bit unsigned */
#define T_32PFUQUAD         0x0523  /* 16:32 far pointer to 64-bit unsigned */
#define T_32PFBOOL08        0x0530  /* 16:32 far pointer to 8-bit Boolean */
#define T_32PFBOOL16        0x0531  /* 16:32 far pointer to 16-bit Boolean */
#define T_32PFBOOL32        0x0532  /* 16:32 far pointer to 32-bit Boolean */
#define T_32PFBOOL64        0x0533  /* 16:32 far pointer to 64-bit Boolean */
#define T_32PFREAL32        0x0540  /* 16:32 far pointer to 32-bit real */
#define T_32PFREAL64        0x0541  /* 16:32 far pointer to 64-bit real */
#define T_32PFREAL80        0x0542  /* 16:32 far pointer to 80-bit real */
#define T_32PFREAL128       0x0543  /* 16:32 far pointer to 128-bit real */
#define T_32PFREAL48        0x0544  /* 16:32 far pointer to 48-bit real */
#define T_32PFCPLX32        0x0550  /* 16:32 far pointer to 32-bit complex */
#define T_32PFCPLX64        0x0551  /* 16:32 far pointer to 64-bit complex */
#define T_32PFCPLX80        0x0552  /* 16:32 far pointer to 80-bit complex */
#define T_32PFCPLX128       0x0553  /* 16:32 far pointer to 128-bit complex */
#define T_32PFRCHAR         0x0570  /* 16:32 far pointer to a real char */
#define T_32PFWCHAR         0x0571  /* 16:32 far pointer to a wide char */
#define T_32PFINT2          0x0572  /* 16:32 far pointer to 16-bit signed int */
#define T_32PFUINT2         0x0573  /* 16:32 far pointer to 16-bit unsigned int */
#define T_32PFINT4          0x0574  /* 16:32 far pointer to 32-bit signed int */
#define T_32PFUINT4         0x0575  /* 16:32 far pointer to 32-bit unsigned int */
#define T_32PFINT8          0x0576  /* 16:32 far pointer to 64-bit signed int */
#define T_32PFUINT8         0x0577  /* 16:32 far pointer to 64-bit unsigned int */
#define T_32PFCHAR16        0x057a  /* 16:32 far pointer to 16-bit unicode char */
#define T_32PFCHAR32        0x057b  /* 16:32 far pointer to 32-bit unicode char */

/* 64-bit near pointers to basic types */
#define T_64PVOID           0x0603  /* 64-bit near pointer to void */
#define T_64PHRESULT        0x0608  /* 64 near pointer to HRESULT - or error code ??? */
#define T_64PCHAR           0x0610  /* 64 near pointer to 8-bit signed */
#define T_64PSHORT          0x0611  /* 64 near pointer to 16-bit signed */
#define T_64PLONG           0x0612  /* 64 near pointer to 32-bit signed */
#define T_64PQUAD           0x0613  /* 64 near pointer to 64-bit signed */
#define T_64PUCHAR          0x0620  /* 64 near pointer to 8-bit unsigned */
#define T_64PUSHORT         0x0621  /* 64 near pointer to 16-bit unsigned */
#define T_64PULONG          0x0622  /* 64 near pointer to 32-bit unsigned */
#define T_64PUQUAD          0x0623  /* 64 near pointer to 64-bit unsigned */
#define T_64PBOOL08         0x0630  /* 64 near pointer to 8-bit Boolean */
#define T_64PBOOL16         0x0631  /* 64 near pointer to 16-bit Boolean */
#define T_64PBOOL32         0x0632  /* 64 near pointer to 32-bit Boolean */
#define T_64PBOOL64         0x0633  /* 64 near pointer to 64-bit Boolean */
#define T_64PREAL32         0x0640  /* 64 near pointer to 32-bit real */
#define T_64PREAL64         0x0641  /* 64 near pointer to 64-bit real */
#define T_64PREAL80         0x0642  /* 64 near pointer to 80-bit real */
#define T_64PREAL128        0x0643  /* 64 near pointer to 128-bit real */
#define T_64PREAL48         0x0644  /* 64 near pointer to 48-bit real */
#define T_64PCPLX32         0x0650  /* 64 near pointer to 32-bit complex */
#define T_64PCPLX64         0x0651  /* 64 near pointer to 64-bit complex */
#define T_64PCPLX80         0x0652  /* 64 near pointer to 80-bit complex */
#define T_64PCPLX128        0x0653  /* 64 near pointer to 128-bit complex */
#define T_64PRCHAR          0x0670  /* 64 near pointer to a real char */
#define T_64PWCHAR          0x0671  /* 64 near pointer to a wide char */
#define T_64PINT2           0x0672  /* 64 near pointer to 16-bit signed int */
#define T_64PUINT2          0x0673  /* 64 near pointer to 16-bit unsigned int */
#define T_64PINT4           0x0674  /* 64 near pointer to 32-bit signed int */
#define T_64PUINT4          0x0675  /* 64 near pointer to 32-bit unsigned int */
#define T_64PINT8           0x0676  /* 64 near pointer to 64-bit signed int */
#define T_64PUINT8          0x0677  /* 64 near pointer to 64-bit unsigned int */
#define T_64PCHAR16         0x067a  /* 64 near pointer to 16-bit unicode char */
#define T_64PCHAR32         0x067b  /* 64 near pointer to 32-bit unicode char */

/* counts, bit masks, and shift values needed to access various parts of the built-in type numbers */
#define T_MAXPREDEFINEDTYPE 0x0580  /* maximum type index for all built-in types */
#define T_MAXBASICTYPE      0x0080  /* maximum type index all non-pointer built-in types */
#define T_BASICTYPE_MASK    0x00ff  /* mask of bits that can potentially identify a non-pointer basic type */
#define T_BASICTYPE_SHIFT   8       /* shift count to push out the basic type bits from a type number */
#define T_MODE_MASK         0x0700  /* type mode mask (ptr/non-ptr) */
#define T_SIZE_MASK         0x0007  /* type size mask (depends on 'type' value) */
#define T_TYPE_MASK         0x00f0  /* type type mask (data treatment mode) */

/* bit patterns for the <mode> portion of a built-in type number */
#define T_NEARPTR_BITS      0x0100
#define T_FARPTR_BITS       0x0200
#define T_HUGEPTR_BITS      0x0300
#define T_NEAR32PTR_BITS    0x0400
#define T_FAR32PTR_BITS     0x0500
#define T_NEAR64PTR_BITS    0x0600

#define LF_MODIFIER_V1          0x0001
#define LF_POINTER_V1           0x0002
#define LF_ARRAY_V1             0x0003
#define LF_CLASS_V1             0x0004
#define LF_STRUCTURE_V1         0x0005
#define LF_UNION_V1             0x0006
#define LF_ENUM_V1              0x0007
#define LF_PROCEDURE_V1         0x0008
#define LF_MFUNCTION_V1         0x0009
#define LF_VTSHAPE_V1           0x000a
#define LF_COBOL0_V1            0x000b
#define LF_COBOL1_V1            0x000c
#define LF_BARRAY_V1            0x000d
#define LF_LABEL_V1             0x000e
#define LF_NULL_V1              0x000f
#define LF_NOTTRAN_V1           0x0010
#define LF_DIMARRAY_V1          0x0011
#define LF_VFTPATH_V1           0x0012
#define LF_PRECOMP_V1           0x0013
#define LF_ENDPRECOMP_V1        0x0014
#define LF_OEM_V1               0x0015
#define LF_TYPESERVER_V1        0x0016

#define LF_MODIFIER_V2          0x1001     /* variants with new 32-bit type indices (V2) */
#define LF_POINTER_V2           0x1002
#define LF_ARRAY_V2             0x1003
#define LF_CLASS_V2             0x1004
#define LF_STRUCTURE_V2         0x1005
#define LF_UNION_V2             0x1006
#define LF_ENUM_V2              0x1007
#define LF_PROCEDURE_V2         0x1008
#define LF_MFUNCTION_V2         0x1009
#define LF_COBOL0_V2            0x100a
#define LF_BARRAY_V2            0x100b
#define LF_DIMARRAY_V2          0x100c
#define LF_VFTPATH_V2           0x100d
#define LF_PRECOMP_V2           0x100e
#define LF_OEM_V2               0x100f

#define LF_SKIP_V1              0x0200
#define LF_ARGLIST_V1           0x0201
#define LF_DEFARG_V1            0x0202
#define LF_LIST_V1              0x0203
#define LF_FIELDLIST_V1         0x0204
#define LF_DERIVED_V1           0x0205
#define LF_BITFIELD_V1          0x0206
#define LF_METHODLIST_V1        0x0207
#define LF_DIMCONU_V1           0x0208
#define LF_DIMCONLU_V1          0x0209
#define LF_DIMVARU_V1           0x020a
#define LF_DIMVARLU_V1          0x020b
#define LF_REFSYM_V1            0x020c

#define LF_SKIP_V2              0x1200    /* variants with new 32-bit type indices (V2) */
#define LF_ARGLIST_V2           0x1201
#define LF_DEFARG_V2            0x1202
#define LF_FIELDLIST_V2         0x1203
#define LF_DERIVED_V2           0x1204
#define LF_BITFIELD_V2          0x1205
#define LF_METHODLIST_V2        0x1206
#define LF_DIMCONU_V2           0x1207
#define LF_DIMCONLU_V2          0x1208
#define LF_DIMVARU_V2           0x1209
#define LF_DIMVARLU_V2          0x120a

/* Field lists */
#define LF_BCLASS_V1            0x0400
#define LF_VBCLASS_V1           0x0401
#define LF_IVBCLASS_V1          0x0402
#define LF_ENUMERATE_V1         0x0403
#define LF_FRIENDFCN_V1         0x0404
#define LF_INDEX_V1             0x0405
#define LF_MEMBER_V1            0x0406
#define LF_STMEMBER_V1          0x0407
#define LF_METHOD_V1            0x0408
#define LF_NESTTYPE_V1          0x0409
#define LF_VFUNCTAB_V1          0x040a
#define LF_FRIENDCLS_V1         0x040b
#define LF_ONEMETHOD_V1         0x040c
#define LF_VFUNCOFF_V1          0x040d
#define LF_NESTTYPEEX_V1        0x040e
#define LF_MEMBERMODIFY_V1      0x040f

#define LF_BCLASS_V2            0x1400    /* variants with new 32-bit type indices (V2) */
#define LF_VBCLASS_V2           0x1401
#define LF_IVBCLASS_V2          0x1402
#define LF_FRIENDFCN_V2         0x1403
#define LF_INDEX_V2             0x1404
#define LF_MEMBER_V2            0x1405
#define LF_STMEMBER_V2          0x1406
#define LF_METHOD_V2            0x1407
#define LF_NESTTYPE_V2          0x1408
#define LF_VFUNCTAB_V2          0x1409
#define LF_FRIENDCLS_V2         0x140a
#define LF_ONEMETHOD_V2         0x140b
#define LF_VFUNCOFF_V2          0x140c
#define LF_NESTTYPEEX_V2        0x140d

#define LF_ENUMERATE_V3         0x1502
#define LF_ARRAY_V3             0x1503
#define LF_CLASS_V3             0x1504
#define LF_STRUCTURE_V3         0x1505
#define LF_UNION_V3             0x1506
#define LF_ENUM_V3              0x1507
#define LF_MEMBER_V3            0x150d
#define LF_STMEMBER_V3          0x150e
#define LF_METHOD_V3            0x150f
#define LF_NESTTYPE_V3          0x1510
#define LF_ONEMETHOD_V3         0x1511

#define LF_NUMERIC              0x8000    /* numeric leaf types */
#define LF_CHAR                 0x8000
#define LF_SHORT                0x8001
#define LF_USHORT               0x8002
#define LF_LONG                 0x8003
#define LF_ULONG                0x8004
#define LF_REAL32               0x8005
#define LF_REAL64               0x8006
#define LF_REAL80               0x8007
#define LF_REAL128              0x8008
#define LF_QUADWORD             0x8009
#define LF_UQUADWORD            0x800a
#define LF_REAL48               0x800b
#define LF_COMPLEX32            0x800c
#define LF_COMPLEX64            0x800d
#define LF_COMPLEX80            0x800e
#define LF_COMPLEX128           0x800f
#define LF_VARSTRING            0x8010

/* ======================================== *
 *            Symbol information
 * ======================================== */

union codeview_symbol
{
    struct
    {
        short int	        len;
        short int	        id;
    } generic;

    struct
    {
	short int	        len;
	short int	        id;
	unsigned int	        offset;
	unsigned short	        segment;
	unsigned short	        symtype;
        struct p_string         p_name;
    } data_v1;

    struct
    {
	short int	        len;
	short int	        id;
	unsigned int	        symtype;
	unsigned int	        offset;
	unsigned short	        segment;
        struct p_string         p_name;
    } data_v2;

    struct
    {
        short int               len;
        short int               id;
        unsigned int            symtype;
        unsigned int            offset;
        unsigned short          segment;
        char                    name[1];
    } data_v3;

    struct
    {
	short int	        len;
	short int	        id;
	unsigned int	        pparent;
	unsigned int	        pend;
	unsigned int	        next;
	unsigned int	        offset;
	unsigned short	        segment;
	unsigned short	        thunk_len;
	unsigned char	        thtype;
        struct p_string         p_name;
    } thunk_v1;

    struct
    {
        short int               len;
        short int               id;
        unsigned int            pparent;
        unsigned int            pend;
        unsigned int            next;
        unsigned int            offset;
        unsigned short          segment;
        unsigned short          thunk_len;
        unsigned char           thtype;
        char                    name[1];
    } thunk_v3;

    struct
    {
	short int	        len;
	short int	        id;
	unsigned int	        pparent;
	unsigned int	        pend;
	unsigned int	        next;
	unsigned int	        proc_len;
	unsigned int	        debug_start;
	unsigned int	        debug_end;
	unsigned int	        offset;
	unsigned short	        segment;
	unsigned short	        proctype;
	unsigned char	        flags;
        struct p_string         p_name;
    } proc_v1;

    struct
    {
	short int	        len;
	short int	        id;
	unsigned int	        pparent;
	unsigned int	        pend;
	unsigned int	        next;
	unsigned int	        proc_len;
	unsigned int	        debug_start;
	unsigned int	        debug_end;
	unsigned int	        proctype;
	unsigned int	        offset;
	unsigned short	        segment;
	unsigned char	        flags;
        struct p_string         p_name;
    } proc_v2;

    struct
    {
        short int               len;
        short int               id;
        unsigned int            pparent;
        unsigned int            pend;
        unsigned int            next;
        unsigned int            proc_len;
        unsigned int            debug_start;
        unsigned int            debug_end;
        unsigned int            proctype;
        unsigned int            offset;
        unsigned short          segment;
        unsigned char           flags;
        char                    name[1];
    } proc_v3;

    struct
    {
        short int               len;
        short int               id;
        unsigned int            symtype;
        unsigned int            offset;
        unsigned short          segment;
        struct p_string         p_name;
    } public_v2;

    struct
    {
        short int               len;
        short int               id;
        unsigned int            symtype;
        unsigned int            offset;
        unsigned short          segment;
        char                    name[1];
    } public_v3;

    struct
    {
	short int	        len;	        /* Total length of this entry */
	short int	        id;		/* Always S_BPREL_V1 */
	unsigned int	        offset;	        /* Stack offset relative to BP */
	unsigned short	        symtype;
        struct p_string         p_name;
    } stack_v1;

    struct
    {
	short int	        len;	        /* Total length of this entry */
	short int	        id;		/* Always S_BPREL_V2 */
	unsigned int	        offset;	        /* Stack offset relative to EBP */
	unsigned int	        symtype;
        struct p_string         p_name;
    } stack_v2;

    struct
    {
        short int               len;            /* Total length of this entry */
        short int               id;             /* Always S_BPREL_V3 */
        int                     offset;         /* Stack offset relative to BP */
        unsigned int            symtype;
        char                    name[1];
    } stack_v3;

    struct
    {
        short int               len;            /* Total length of this entry */
        short int               id;             /* Always S_BPREL_V3 */
        int                     offset;         /* Stack offset relative to BP */
        unsigned int            symtype;
        unsigned short          reg;
        char                    name[1];
    } regrel_v3;

    struct
    {
	short int	        len;	        /* Total length of this entry */
	short int	        id;		/* Always S_REGISTER */
        unsigned short          type;
        unsigned short          reg;
        struct p_string         p_name;
        /* don't handle register tracking */
    } register_v1;

    struct
    {
	short int	        len;	        /* Total length of this entry */
	short int	        id;		/* Always S_REGISTER_V2 */
        unsigned int            type;           /* check whether type & reg are correct */
        unsigned short          reg;
        struct p_string         p_name;
        /* don't handle register tracking */
    } register_v2;

    struct
    {
	short int	        len;	        /* Total length of this entry */
	short int	        id;		/* Always S_REGISTER_V3 */
        unsigned int            type;           /* check whether type & reg are correct */
        unsigned short          reg;
        char                    name[1];
        /* don't handle register tracking */
    } register_v3;

    struct
    {
        short int               len;
        short int               id;
        unsigned int            parent;
        unsigned int            end;
        unsigned int            length;
        unsigned int            offset;
        unsigned short          segment;
        struct p_string         p_name;
    } block_v1;

    struct
    {
        short int               len;
        short int               id;
        unsigned int            parent;
        unsigned int            end;
        unsigned int            length;
        unsigned int            offset;
        unsigned short          segment;
        char                    name[1];
    } block_v3;

    struct
    {
        short int               len;
        short int               id;
        unsigned int            offset;
        unsigned short          segment;
        unsigned char           flags;
        struct p_string         p_name;
    } label_v1;

    struct
    {
        short int               len;
        short int               id;
        unsigned int            offset;
        unsigned short          segment;
        unsigned char           flags;
        char                    name[1];
    } label_v3;

    struct
    {
        short int               len;
        short int               id;
        unsigned short          type;
        unsigned short          cvalue;         /* numeric leaf */
#if 0
        struct p_string         p_name;
#endif
    } constant_v1;

    struct
    {
        short int               len;
        short int               id;
        unsigned                type;
        unsigned short          cvalue;         /* numeric leaf */
#if 0
        struct p_string         p_name;
#endif
    } constant_v2;

    struct
    {
        short int               len;
        short int               id;
        unsigned                type;
        unsigned short          cvalue;
#if 0
        char                    name[1];
#endif
    } constant_v3;

    struct
    {
        short int               len;
        short int               id;
        unsigned short          type;
        struct p_string         p_name;
    } udt_v1;

    struct
    {
        short int               len;
        short int               id;
        unsigned                type;
        struct p_string         p_name;
    } udt_v2;

    struct
    {
        short int               len;
        short int               id;
        unsigned int            type;
        char                    name[1];
    } udt_v3;

    struct
    {
        short int               len;
        short int               id;
        char                    signature[4];
        struct p_string         p_name;
    } objname_v1;

    struct
    {
        short int               len;
        short int               id;
        unsigned int            unknown;
        struct p_string         p_name;
    } compiland_v1;

    struct
    {
        short int               len;
        short int               id;
        unsigned                unknown1[4];
        unsigned short          unknown2;
        struct p_string         p_name;
    } compiland_v2;

    struct
    {
        short int               len;
        short int               id;
        unsigned int            unknown;
        char                    name[1];
    } compiland_v3;

    struct
    {
        short int               len;
        short int               id;
        unsigned int            offset;
        unsigned short          segment;
        unsigned short          symtype;
        struct p_string         p_name;
    } thread_v1;

    struct
    {
        short int               len;
        short int               id;
        unsigned int            symtype;
        unsigned int            offset;
        unsigned short          segment;
        struct p_string         p_name;
    } thread_v2;

    struct
    {
        short int               len;
        short int               id;
        unsigned int            symtype;
        unsigned int            offset;
        unsigned short          segment;
        char                    name[1];
    } thread_v3;

    struct
    {
        short int               len;
        short int               id;
        unsigned int            offset;
        unsigned short          segment;
    } ssearch_v1;

    struct
    {
        short int               len;
        short int               id;
        unsigned int            offset;
        unsigned int            unknown;
    } security_cookie_v3;

    struct
    {
        short int               len;
        short int               id;
        unsigned int            sz_frame;       /* size of frame */
        unsigned int            unknown2;
        unsigned int            unknown3;
        unsigned int            sz_saved_regs;  /* size of saved registers from callee */
        unsigned int            eh_offset;      /* offset for exception handler */
        unsigned short          eh_sect;        /* section for exception handler */
        unsigned int            flags;
    } frame_info_v2;
};

#define S_COMPILAND_V1  0x0001
#define S_REGISTER_V1   0x0002
#define S_CONSTANT_V1   0x0003
#define S_UDT_V1        0x0004
#define S_SSEARCH_V1    0x0005
#define S_END_V1        0x0006
#define S_SKIP_V1       0x0007
#define S_CVRESERVE_V1  0x0008
#define S_OBJNAME_V1    0x0009
#define S_ENDARG_V1     0x000a
#define S_COBOLUDT_V1   0x000b
#define S_MANYREG_V1    0x000c
#define S_RETURN_V1     0x000d
#define S_ENTRYTHIS_V1  0x000e

#define S_BPREL_V1      0x0200
#define S_LDATA_V1      0x0201
#define S_GDATA_V1      0x0202
#define S_PUB_V1        0x0203
#define S_LPROC_V1      0x0204
#define S_GPROC_V1      0x0205
#define S_THUNK_V1      0x0206
#define S_BLOCK_V1      0x0207
#define S_WITH_V1       0x0208
#define S_LABEL_V1      0x0209
#define S_CEXMODEL_V1   0x020a
#define S_VFTPATH_V1    0x020b
#define S_REGREL_V1     0x020c
#define S_LTHREAD_V1    0x020d
#define S_GTHREAD_V1    0x020e

#define S_PROCREF_V1    0x0400
#define S_DATAREF_V1    0x0401
#define S_ALIGN_V1      0x0402
#define S_LPROCREF_V1   0x0403

#define S_REGISTER_V2   0x1001 /* Variants with new 32-bit type indices */
#define S_CONSTANT_V2   0x1002
#define S_UDT_V2        0x1003
#define S_COBOLUDT_V2   0x1004
#define S_MANYREG_V2    0x1005
#define S_BPREL_V2      0x1006
#define S_LDATA_V2      0x1007
#define S_GDATA_V2      0x1008
#define S_PUB_V2        0x1009
#define S_LPROC_V2      0x100a
#define S_GPROC_V2      0x100b
#define S_VFTTABLE_V2   0x100c
#define S_REGREL_V2     0x100d
#define S_LTHREAD_V2    0x100e
#define S_GTHREAD_V2    0x100f
#define S_FRAMEINFO_V2  0x1012
#define S_COMPILAND_V2  0x1013

#define S_COMPILAND_V3  0x1101
#define S_THUNK_V3      0x1102
#define S_BLOCK_V3      0x1103
#define S_WITH_V3       0x1104
#define S_LABEL_V3      0x1105
#define S_REGISTER_V3   0x1106
#define S_CONSTANT_V3   0x1107
#define S_UDT_V3        0x1108
#define S_COBOLUDT_V3   0x1109
#define S_MANYREG_V3    0x110A
#define S_BPREL_V3      0x110B
#define S_LDATA_V3      0x110C
#define S_GDATA_V3      0x110D
#define S_PUB_V3        0x110E
#define S_LPROC_V3      0x110F
#define S_GPROC_V3      0x1110
#define S_REGREL_V3     0x1111
#define S_LTHREAD_V3    0x1112
#define S_GTHREAD_V3    0x1113
#define S_LPROCMIPS     0x1114
#define S_GPROCMIPS     0x1115
#define S_MSTOOL_V3     0x1116  /* compiler command line options and build information */
#define S_MANYREG2      0x1117
#define S_LPROCIA64     0x1118
#define S_GPROCIA64     0x1119
#define S_LOCALSLOT     0x111A
#define S_PARAMSLOT     0x111B
#define S_LMANDATA      0x111C
#define S_GMANDATA      0x111D
#define S_MANFRAMEREL   0x111E
#define S_MANREGISTER   0x111F
#define S_MANSLOT       0x1120
#define S_MANMANYREG    0x1121
#define S_MANREGREL     0x1122
#define S_MANMANYREG2   0x1123
#define S_UNAMESPACE    0x1124
#define S_PROCREF_V3    0x1125
#define S_DATAREF_V3    0x1126
#define S_LPROCREF_V3   0x1127
#define S_ANNOTATIONREF 0x1128
#define S_TOKENREF      0x1129
#define S_GMANPROC      0x112A
#define S_LMANPROC      0x112B
#define S_TRAMPOLINE    0x112C
#define S_MANCONSTANT   0x112D
#define S_ATTR_FRAMEREL 0x112E
#define S_ATTR_REGISTER 0x112F
#define S_ATTR_REGREL   0x1130
#define S_ATTR_MANYREG  0x1131
#define S_SEPCODE       0x1132
#define S_LOCAL_2005    0x1133
#define S_DEFRANGE_2005 0x1134
#define S_DEFRANGE2_2005 0x1135
#define S_SECTINFO_V3   0x1136
#define S_SUBSECTINFO_V3 0x1137
#define S_ENTRYPOINT_V3 0x1138
#define S_CALLSITEINFO  0x1139
#define S_SECUCOOKIE_V3 0x113A
#define S_DISCARDED     0x113B
#define S_MSTOOLINFO_V3 0x113C
#define S_MSTOOLENV_V3  0x113D

#define S_LOCAL_VS2013      0x113E
#define S_DEFRANGE_VS2013   0x113F
#define S_DEFRANGE_SUBFIELD 0x1140
#define S_DEFRANGE_REGISTER 0x1141
#define S_DEFRANGE_FRAMEPOINTER_REL     0x1142
#define S_DEFRANGE_SUBFIELD_REGISTER    0x1143
#define S_FPOFF_VS2013      0x1144
#define S_DEFRANGE_REGISTER_REL         0x1145
#define S_LPROC32_VS2013    0x1146
#define S_GPROC32_VS2013    0x1147
#define S_LPROCMIPS_ID      0x1148
#define S_GPROCMIPS_ID      0x1149
#define S_LPROCIA64_ID      0x114A
#define S_GPROCIA64_ID      0x114B
#define S_BUILDINFO         0x114C
#define S_INLINESITE        0x114D
#define S_INLINESITE_END    0x114E
#define S_PROC_ID_END       0x114F
#define S_DEFRANGE_HLSL     0x1150
#define S_GDATA_HLSL        0x1151
#define S_LDATA_HLSL        0x1152

#define S_FILESTATIC        0x1153
#define S_ARMSWITCHTABLE    0x1159
#define S_CALLEES           0x115A
#define S_CALLERS           0x115B
#define S_POGODATA          0x115C
#define S_INLINESITE2       0x115D
#define S_HEAPALLOCSITE     0x115E
#define S_MOD_TYPEREF       0x115F
#define S_REF_MINIPDB       0x1160
#define S_PDBMAP            0x1161
#define S_GDATA_HLSL32      0x1162
#define S_LDATA_HLSL32      0x1163
#define S_GDATA_HLSL32_EX   0x1164
#define S_LDATA_HLSL32_EX   0x1165

/* ======================================== *
 *          Line number information
 * ======================================== */

struct codeview_linetab_block
{
    unsigned short              seg;
    unsigned short              num_lines;
    unsigned int                offsets[1];     /* in fact num_lines */
/*  unsigned short              linenos[]; */
};

struct startend
{
    unsigned int	        start;
    unsigned int	        end;
};

#define LT2_LINES_BLOCK 0x000000f2
#define LT2_FILES_BLOCK 0x000000f4

/* there's a new line tab structure from MS Studio 2005 and after
 * it's made of a list of codeview_linetab2 blocks.
 * We've only seen (so far) list with a single LT2_FILES_BLOCK and several
 * LT2_LINES_BLOCK. The LT2_FILES block has been encountered either as first
 * or last block of the list.
 * A LT2_FILES contains one or several codeview_linetab2_file:s
 */

struct codeview_linetab2
{
    uint32_t       header;
    uint32_t       size_of_block;
};

static inline const struct codeview_linetab2* codeview_linetab2_next_block(const struct codeview_linetab2* lt2)
{
    return (const struct codeview_linetab2*)((const char*)(lt2 + 1) + lt2->size_of_block);
}

struct codeview_linetab2_file
{
    uint32_t       offset;         /* offset in string table for filename */
    uint16_t        unk;            /* always 0x0110... type of following information ??? */
    BYTE        md5[16];        /* MD5 signature of file (signature on file's content or name ???) */
    uint16_t        pad0;           /* always 0 */
};

struct codeview_lt2blk_files
{
    struct codeview_linetab2            lt2;    /* LT2_FILES */
    struct codeview_linetab2_file       file[1];
};

struct codeview_lt2blk_lines
{
    struct codeview_linetab2    lt2;            /* LT2_LINE_BLOCK */
    uint32_t                       start;          /* start address of function with line numbers */
    uint32_t                       seg;            /* segment of function with line numbers */
    uint32_t                       size;           /* size of function with line numbers */
    uint32_t                       file_offset;    /* offset for accessing corresponding codeview_linetab2_file */
    uint32_t                       nlines;         /* number of lines in this block */
    uint32_t                       size_lines;     /* number of bytes following for line number information */
    struct {
        uint32_t   offset;         /* offset (from <seg>:<start>) for line number */
        uint32_t   lineno;         /* the line number (OR:ed with 0x80000000 why ???) */
    } l[1];                     /* actually array of <nlines> */
};

/* ======================================== *
 *            PDB file information
 * ======================================== */


struct PDB_FILE
{
    uint32_t               size;
    uint32_t               unknown;
};

struct PDB_JG_HEADER
{
    char                   ident[40];
    uint32_t               signature;
    uint32_t               block_size;
    uint16_t               free_list;
    uint16_t               total_alloc;
    struct PDB_FILE        toc;
    uint16_t               toc_block[1];
};

struct PDB_DS_HEADER
{
	char                   signature[32];
    uint32_t               block_size;
    uint32_t               unknown1;
    uint32_t               num_pages;
    uint32_t               toc_size;
    uint32_t               unknown2;
    uint32_t               toc_page;
};

struct PDB_JG_TOC
{
    uint32_t               num_files;
    struct PDB_FILE        file[1];
};

struct PDB_DS_TOC
{
    uint32_t               num_files;
    uint32_t               file_size[1];
};

struct PDB_JG_ROOT
{
    uint32_t               Version;
    uint32_t               TimeDateStamp;
    uint32_t               Age;
    uint32_t               cbNames;
	char                   names[1];
};

struct PDB_DS_ROOT
{
    uint32_t               Version;
    uint32_t               TimeDateStamp;
    uint32_t               Age;
    GUID                   guid;
    uint32_t               cbNames;
	char                   names[1];
};

typedef struct _PDB_TYPES_OLD
{
    uint32_t        version;
    uint16_t        first_index;
    uint16_t        last_index;
    uint32_t        type_size;
    uint16_t        file;
    uint16_t        pad;
} PDB_TYPES_OLD, *PPDB_TYPES_OLD;

typedef struct _PDB_TYPES
{
    uint32_t       version;
    uint32_t       type_offset;
    uint32_t       first_index;
    uint32_t       last_index;
    uint32_t       type_size;
    uint16_t       file;
    uint16_t       pad;
    uint32_t       hash_size;
    uint32_t       hash_base;
    uint32_t       hash_offset;
    uint32_t       hash_len;
    uint32_t       search_offset;
    uint32_t       search_len;
    uint32_t       unknown_offset;
    uint32_t       unknown_len;
} PDB_TYPES, *PPDB_TYPES;

typedef struct _PDB_SYMBOL_RANGE
{
    uint16_t       segment;
    uint16_t       pad1;
    uint32_t       offset;
    uint32_t       size;
    uint32_t       characteristics;
    uint16_t       index;
    uint16_t       pad2;
} PDB_SYMBOL_RANGE, *PPDB_SYMBOL_RANGE;

typedef struct _PDB_SYMBOL_RANGE_EX
{
    uint16_t       segment;
    uint16_t       pad1;
    uint32_t       offset;
    uint32_t       size;
    uint32_t       characteristics;
    uint16_t       index;
    uint16_t       pad2;
    uint32_t       timestamp;
    uint32_t       unknown;
} PDB_SYMBOL_RANGE_EX, *PPDB_SYMBOL_RANGE_EX;

typedef struct _PDB_SYMBOL_FILE
{
    uint32_t       unknown1;
    PDB_SYMBOL_RANGE range;
    uint16_t       flag;
    uint16_t       file;
    uint32_t       symbol_size;
    uint32_t       lineno_size;
    uint32_t       unknown2;
    uint32_t       nSrcFiles;
    uint32_t       attribute;
	char           filename[1];
} PDB_SYMBOL_FILE, *PPDB_SYMBOL_FILE;

typedef struct _PDB_SYMBOL_FILE_EX
{
    uint32_t       unknown1;
    PDB_SYMBOL_RANGE_EX range;
    uint16_t       flag;
    uint16_t       file;
    uint32_t       symbol_size;
    uint32_t       lineno_size;
    uint32_t       unknown2;
    uint32_t       nSrcFiles;
    uint32_t       attribute;
    uint32_t       reserved[2];
	char           filename[1];
} PDB_SYMBOL_FILE_EX, *PPDB_SYMBOL_FILE_EX;

typedef struct _PDB_SYMBOL_SOURCE
{
    uint16_t        nModules;
    uint16_t        nSrcFiles;
    uint16_t        table[1];
} PDB_SYMBOL_SOURCE, *PPDB_SYMBOL_SOURCE;

typedef struct _PDB_SYMBOL_IMPORT
{
    uint32_t       unknown1;
    uint32_t       unknown2;
    uint32_t       TimeDateStamp;
    uint32_t       Age;
	char           filename[1];
} PDB_SYMBOL_IMPORT, *PPDB_SYMBOL_IMPORT;

typedef struct _PDB_SYMBOLS_OLD
{
    uint16_t       hash1_file;
    uint16_t       hash2_file;
    uint16_t       gsym_file;
    uint16_t       pad;
    uint32_t       module_size;
    uint32_t       offset_size;
    uint32_t       hash_size;
    uint32_t       srcmodule_size;
} PDB_SYMBOLS_OLD, *PPDB_SYMBOLS_OLD;

typedef struct _PDB_SYMBOLS
{
    uint32_t       signature;
    uint32_t       version;
    uint32_t       unknown;
    uint32_t       hash1_file;
    uint32_t       hash2_file;
    uint16_t       gsym_file;
    uint16_t       unknown1;
    uint32_t       module_size;
    uint32_t       offset_size;
    uint32_t       hash_size;
    uint32_t       srcmodule_size;
    uint32_t       pdbimport_size;
    uint32_t       resvd0;
    uint32_t       stream_index_size;
    uint32_t       unknown2_size;
    uint16_t       resvd3;
    uint16_t       machine;
    uint32_t       resvd4;
} PDB_SYMBOLS, *PPDB_SYMBOLS;

typedef struct
{
    uint16_t       FPO;
    uint16_t       unk0;
    uint16_t       unk1;
    uint16_t       unk2;
    uint16_t       unk3;
    uint16_t       segments;
} PDB_STREAM_INDEXES_OLD;

typedef struct
{
    uint16_t       FPO;
    uint16_t       unk0;
    uint16_t       unk1;
    uint16_t       unk2;
    uint16_t       unk3;
    uint16_t       segments;
    uint16_t       unk4;
    uint16_t       unk5;
    uint16_t       unk6;
    uint16_t       FPO_EXT;
    uint16_t       unk7;
} PDB_STREAM_INDEXES;

typedef struct _PDB_FPO_DATA
{
    uint32_t       start;
    uint32_t       func_size;
    uint32_t       locals_size;
    uint32_t       params_size;
    uint32_t       maxstack_size;
    uint32_t       str_offset;
    uint16_t       prolog_size;
    uint16_t       savedregs_size;
#define PDB_FPO_DFL_SEH         0x00000001
#define PDB_FPO_DFL_EH          0x00000002
#define PDB_FPO_DFL_IN_BLOCK    0x00000004
    uint32_t       flags;
} PDB_FPO_DATA;

#pragma pack(pop)

/* ----------------------------------------------
 * Information used for parsing
 * ---------------------------------------------- */

typedef struct
{
    uint32_t  from;
    uint32_t  to;
} OMAP_DATA;

struct msc_debug_info
{
    struct module*              module;
    int			        nsect;
    const IMAGE_SECTION_HEADER* sectp;
    int			        nomap;
    const OMAP_DATA*            omapp;
    const BYTE*                 root;
};

/* coff.c */
extern BOOL coff_process_info(const struct msc_debug_info* msc_dbg);

/* ===================================================
 * The old CodeView stuff (for NB09 and NB11)
 * =================================================== */

#define sstModule      0x120
#define sstTypes       0x121
#define sstPublic      0x122
#define sstPublicSym   0x123
#define sstSymbols     0x124
#define sstAlignSym    0x125
#define sstSrcLnSeg    0x126
#define sstSrcModule   0x127
#define sstLibraries   0x128
#define sstGlobalSym   0x129
#define sstGlobalPub   0x12a
#define sstGlobalTypes 0x12b
#define sstMPC         0x12c
#define sstSegMap      0x12d
#define sstSegName     0x12e
#define sstPreComp     0x12f
#define sstFileIndex   0x133
#define sstStaticSym   0x134

/* overall structure information */
typedef struct OMFSignature
{
    char        Signature[4];
    long        filepos;
} OMFSignature;

typedef struct OMFSignatureRSDS
{
    char        Signature[4];
    GUID        guid;
    uint32_t    age;
	char        name[1];
} OMFSignatureRSDS;

typedef struct _CODEVIEW_PDB_DATA
{
    char        Signature[4];
    long        filepos;
    uint32_t    timestamp;
    uint32_t    age;
	char        name[1];
} CODEVIEW_PDB_DATA, *PCODEVIEW_PDB_DATA;

typedef struct OMFDirHeader
{
    uint16_t       cbDirHeader;
    uint16_t       cbDirEntry;
    uint32_t       cDir;
    uint32_t       lfoNextDir;
    uint32_t       flags;
} OMFDirHeader;

typedef struct OMFDirEntry
{
    uint16_t       SubSection;
    uint16_t       iMod;
    uint32_t       lfo;
    uint32_t       cb;
} OMFDirEntry;

/* sstModule subsection */

typedef struct OMFSegDesc
{
    uint16_t       Seg;
    uint16_t       pad;
    uint32_t       Off;
    uint32_t       cbSeg;
} OMFSegDesc;

typedef struct OMFModule
{
    uint16_t       ovlNumber;
    uint16_t       iLib;
    uint16_t       cSeg;
    char           Style[2];
/*
    OMFSegDesc  SegInfo[cSeg];
    p_string    Name;
*/
} OMFModule;

typedef struct OMFGlobalTypes
{
    uint32_t       flags;
    uint32_t       cTypes;
/*
    uint32_t       offset[cTypes];
                types_record[];
*/
} OMFGlobalTypes;

/* sstGlobalPub section */

/* Header for symbol table */
typedef struct OMFSymHash
{
    unsigned short  symhash;
    unsigned short  addrhash;
    unsigned long   cbSymbol;
    unsigned long   cbHSym;
    unsigned long   cbHAddr;
} OMFSymHash;

/* sstSegMap section */

typedef struct OMFSegMapDesc
{
    unsigned short  flags;
    unsigned short  ovl;
    unsigned short  group;
    unsigned short  frame;
    unsigned short  iSegName;
    unsigned short  iClassName;
    unsigned long   offset;
    unsigned long   cbSeg;
} OMFSegMapDesc;

typedef struct OMFSegMap
{
    unsigned short  cSeg;
    unsigned short  cSegLog;
/*    OMFSegMapDesc   rgDesc[0];*/
} OMFSegMap;


/* sstSrcModule section */

typedef struct OMFSourceLine
{
    unsigned short  Seg;
    unsigned short  cLnOff;
    unsigned long   offset[1];
    unsigned short  lineNbr[1];
} OMFSourceLine;

typedef struct OMFSourceFile
{
    unsigned short  cSeg;
    unsigned short  reserved;
    unsigned long   baseSrcLn[1];
    unsigned short  cFName;
    char            Name;
} OMFSourceFile;

typedef struct OMFSourceModule
{
    unsigned short  cFile;
    unsigned short  cSeg;
    unsigned long   baseSrcFile[1];
} OMFSourceModule;

//ïîðòèðîâàíî èç WINEDUMP ñ ñîõðàíåíèåì áîëüøèíñòâà èìåí
static const char       pdb2[] = "Microsoft C/C++ program database 2.00";
static const char       pdb7[] = "Microsoft C/C++ MSF 7.00";

#define PDB_STREAM_ROOT     0 // PDB root directory
#define PDB_STREAM_PDB      1 // PDB stream info
#define PDB_STREAM_TPI      2 // type info
#define PDB_STREAM_DBI      3 // debug info

class PdbFileStream : public FileStream
{
public:
	PdbFileStream() : FileStream() { }
	template<class T>
	bool RawRead(int64_t pos, std::vector<T> *dest)
	{
		if (Seek(pos, soBeginning) == (uint64_t)-1)
			return false;
		size_t size = dest->size() * sizeof(T);
		return (Read(dest->data(), size) == size);
	}
	template<class T>
	bool RawRead(int64_t pos, T *dest)
	{
		if (Seek(pos, soBeginning) == (uint64_t)-1)
			return false;
		size_t size = sizeof(*dest);
		return (Read(dest, size) == size);
	}
};

class pdb_reader
{
protected:
	PdbFileStream &fs_;
	std::vector<uint8_t> vtoc_, vroot_;
public:
	pdb_reader(PdbFileStream &fs) : fs_(fs) {}
	virtual ~pdb_reader() {}
	virtual bool init() = 0;
	virtual bool read_file(size_t idx, std::vector<uint8_t> &dest) = 0;
	template<class T> bool read(size_t block_size, const T* block_list, size_t size, std::vector<uint8_t> &dest);
};

class pdb_jg_reader : public pdb_reader
{
public:
	pdb_jg_reader(PdbFileStream &fs) : pdb_reader(fs), toc(NULL), root(NULL) {}
	bool init();
	bool read_file(size_t idx, std::vector<uint8_t> &dest);

	PDB_JG_HEADER header;
	const struct PDB_JG_TOC*    toc;
	const struct PDB_JG_ROOT*   root;
};

class pdb_ds_reader : public pdb_reader
{
public:
	pdb_ds_reader(PdbFileStream &fs) : pdb_reader(fs), toc(NULL), root(NULL) {}
	bool init();
	bool read_file(size_t idx, std::vector<uint8_t> &dest);

	PDB_DS_HEADER header;
	const struct PDB_DS_TOC*    toc;
	const struct PDB_DS_ROOT*   root;
};

template<class T>
bool pdb_reader::read(size_t block_size, const T* block_list, size_t size, std::vector<uint8_t> &dest)
{
	if (!size) 
		return false;

	dest.resize(size);
	uint8_t *buffer = dest.data();

	size_t block_count = (size + block_size - 1) / block_size;
	for (size_t i = 0; i < block_count; i++)
	{
		fs_.Seek(block_list[i] * block_size, soBeginning);
		size_t pos = i * block_size;
		fs_.Read(buffer + pos, std::min(size - pos, block_size));
	}
	return true;
}

bool pdb_jg_reader::read_file(size_t file_nr, std::vector<uint8_t> &dest)
{
	if (!toc || file_nr >= toc->num_files) 
		return false;

	if (toc->file[file_nr].size == 0 || toc->file[file_nr].size == 0xFFFFFFFF)
		return false;

	const uint16_t *block_list = reinterpret_cast<const WORD*>(&toc->file[toc->num_files]);
	for (size_t i = 0; i < file_nr; i++)
		block_list += (toc->file[i].size + header.block_size - 1) / header.block_size;

	return read(header.block_size, block_list, toc->file[file_nr].size, dest);
}

bool pdb_jg_reader::init()
{
	if(!fs_.RawRead(0, &header))
		return false;

	std::vector<WORD> toc_blocks((header.toc.size + header.block_size - 1) / header.block_size);
	if (!fs_.RawRead(offsetof(PDB_JG_HEADER, toc_block), &toc_blocks))
		return false;

	if (read(header.block_size, toc_blocks.data(), header.toc.size, vtoc_))
	{
		toc = reinterpret_cast<PDB_JG_TOC*>(vtoc_.data());
		if (read_file(PDB_STREAM_PDB, vroot_))
		{
			root = reinterpret_cast<PDB_JG_ROOT*>(vroot_.data());
			return true;
		}
	}
	return false;
}

 bool pdb_ds_reader::read_file(size_t file_number, std::vector<uint8_t> &dest)
{
	if (!toc || file_number >= toc->num_files)
		 return false;

	if (toc->file_size[file_number] == 0 || toc->file_size[file_number] == 0xFFFFFFFF)
		return false;

	const uint32_t *block_list = toc->file_size + toc->num_files;
	for (size_t i = 0; i < file_number; i++)
		block_list += (toc->file_size[i] + header.block_size - 1) / header.block_size;

	return read(header.block_size, block_list, toc->file_size[file_number], dest);
}

bool pdb_ds_reader::init()
{
	if (!fs_.RawRead(0, &header)) 
		return false;

	std::vector<DWORD> toc_blocks((header.toc_size + header.block_size - 1) / header.block_size);
	if (!fs_.RawRead(header.toc_page * header.block_size, &toc_blocks))
		return false;

	if (read(header.block_size, toc_blocks.data(), header.toc_size, vtoc_))
	{
		toc = reinterpret_cast<PDB_DS_TOC*>(&vtoc_[0]);
		if (read_file(PDB_STREAM_PDB, vroot_))
		{
			root = reinterpret_cast<PDB_DS_ROOT*>(vroot_.data());
			return true;
		}
	}
	return false;
}
