winnt.h

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// begin_ntminiport

#endif //_X86_


#ifndef _LDT_ENTRY_DEFINED
#define _LDT_ENTRY_DEFINED

typedef struct _LDT_ENTRY {
    WORD    LimitLow;
    WORD    BaseLow;
    union {
        struct {
            BYTE    BaseMid;
            BYTE    Flags1;     // Declare as bytes to avoid alignment
            BYTE    Flags2;     // Problems.
            BYTE    BaseHi;
        } Bytes;
        struct {
            DWORD   BaseMid : 8;
            DWORD   Type : 5;
            DWORD   Dpl : 2;
            DWORD   Pres : 1;
            DWORD   LimitHi : 4;
            DWORD   Sys : 1;
            DWORD   Reserved_0 : 1;
            DWORD   Default_Big : 1;
            DWORD   Granularity : 1;
            DWORD   BaseHi : 8;
        } Bits;
    } HighWord;
} LDT_ENTRY, *PLDT_ENTRY;

#endif


#if defined(_MIPS_)

//
// Define functions to get the address of the current fiber and the
// current fiber data.
//

#define GetCurrentFiber() ((*(PNT_TIB *)0x7ffff4a8)->FiberData)
#define GetFiberData() (*(PVOID *)(GetCurrentFiber()))

// begin_ntddk begin_nthal
//
// The following flags control the contents of the CONTEXT structure.
//

#if !defined(RC_INVOKED)

#define CONTEXT_R4000   0x00010000    // r4000 context

#define CONTEXT_CONTROL          (CONTEXT_R4000 | 0x00000001)
#define CONTEXT_FLOATING_POINT   (CONTEXT_R4000 | 0x00000002)
#define CONTEXT_INTEGER          (CONTEXT_R4000 | 0x00000004)
#define CONTEXT_EXTENDED_FLOAT   (CONTEXT_FLOATING_POINT | 0x00000008)
#define CONTEXT_EXTENDED_INTEGER (CONTEXT_INTEGER | 0x00000010)

#define CONTEXT_FULL (CONTEXT_CONTROL | CONTEXT_FLOATING_POINT | \
                      CONTEXT_INTEGER | CONTEXT_EXTENDED_INTEGER)

#endif

//
// Context Frame
//
//  N.B. This frame must be exactly a multiple of 16 bytes in length.
//
//  This frame has a several purposes: 1) it is used as an argument to
//  NtContinue, 2) it is used to constuct a call frame for APC delivery,
//  3) it is used to construct a call frame for exception dispatching
//  in user mode, and 4) it is used in the user level thread creation
//  routines.
//
//  The layout of the record conforms to a standard call frame.
//

typedef struct _CONTEXT {

    //
    // This section is always present and is used as an argument build
    // area.
    //
    // N.B. Context records are 0 mod 8 aligned starting with NT 4.0.
    //

    union {
        DWORD Argument[4];
        ULONGLONG Alignment;
    };

    //
    // The following union defines the 32-bit and 64-bit register context.
    //

    union {

        //
        // 32-bit context.
        //

        struct {

            //
            // This section is specified/returned if the ContextFlags contains
            // the flag CONTEXT_FLOATING_POINT.
            //
            // N.B. This section contains the 16 double floating registers f0,
            //      f2, ..., f30.
            //

            DWORD FltF0;
            DWORD FltF1;
            DWORD FltF2;
            DWORD FltF3;
            DWORD FltF4;
            DWORD FltF5;
            DWORD FltF6;
            DWORD FltF7;
            DWORD FltF8;
            DWORD FltF9;
            DWORD FltF10;
            DWORD FltF11;
            DWORD FltF12;
            DWORD FltF13;
            DWORD FltF14;
            DWORD FltF15;
            DWORD FltF16;
            DWORD FltF17;
            DWORD FltF18;
            DWORD FltF19;
            DWORD FltF20;
            DWORD FltF21;
            DWORD FltF22;
            DWORD FltF23;
            DWORD FltF24;
            DWORD FltF25;
            DWORD FltF26;
            DWORD FltF27;
            DWORD FltF28;
            DWORD FltF29;
            DWORD FltF30;
            DWORD FltF31;

            //
            // This section is specified/returned if the ContextFlags contains
            // the flag CONTEXT_INTEGER.
            //
            // N.B. The registers gp, sp, and ra are defined in this section,
            //      but are considered part of the control context rather than
            //      part of the integer context.
            //
            // N.B. Register zero is not stored in the frame.
            //

            DWORD IntZero;
            DWORD IntAt;
            DWORD IntV0;
            DWORD IntV1;
            DWORD IntA0;
            DWORD IntA1;
            DWORD IntA2;
            DWORD IntA3;
            DWORD IntT0;
            DWORD IntT1;
            DWORD IntT2;
            DWORD IntT3;
            DWORD IntT4;
            DWORD IntT5;
            DWORD IntT6;
            DWORD IntT7;
            DWORD IntS0;
            DWORD IntS1;
            DWORD IntS2;
            DWORD IntS3;
            DWORD IntS4;
            DWORD IntS5;
            DWORD IntS6;
            DWORD IntS7;
            DWORD IntT8;
            DWORD IntT9;
            DWORD IntK0;
            DWORD IntK1;
            DWORD IntGp;
            DWORD IntSp;
            DWORD IntS8;
            DWORD IntRa;
            DWORD IntLo;
            DWORD IntHi;

            //
            // This section is specified/returned if the ContextFlags word contains
            // the flag CONTEXT_FLOATING_POINT.
            //

            DWORD Fsr;

            //
            // This section is specified/returned if the ContextFlags word contains
            // the flag CONTEXT_CONTROL.
            //
            // N.B. The registers gp, sp, and ra are defined in the integer section,
            //   but are considered part of the control context rather than part of
            //   the integer context.
            //

            DWORD Fir;
            DWORD Psr;

            //
            // The flags values within this flag control the contents of
            // a CONTEXT record.
            //
            // If the context record is used as an input parameter, then
            // for each portion of the context record controlled by a flag
            // whose value is set, it is assumed that that portion of the
            // context record contains valid context. If the context record
            // is being used to modify a thread's context, then only that
            // portion of the threads context will be modified.
            //
            // If the context record is used as an IN OUT parameter to capture
            // the context of a thread, then only those portions of the thread's
            // context corresponding to set flags will be returned.
            //
            // The context record is never used as an OUT only parameter.
            //

            DWORD ContextFlags;
        };

        //
        // 64-bit context.
        //

        struct {

            //
            // This section is specified/returned if the ContextFlags contains
            // the flag CONTEXT_EXTENDED_FLOAT.
            //
            // N.B. This section contains the 32 double floating registers f0,
            //      f1, ..., f31.
            //

            ULONGLONG XFltF0;
            ULONGLONG XFltF1;
            ULONGLONG XFltF2;
            ULONGLONG XFltF3;
            ULONGLONG XFltF4;
            ULONGLONG XFltF5;
            ULONGLONG XFltF6;
            ULONGLONG XFltF7;
            ULONGLONG XFltF8;
            ULONGLONG XFltF9;
            ULONGLONG XFltF10;
            ULONGLONG XFltF11;
            ULONGLONG XFltF12;
            ULONGLONG XFltF13;
            ULONGLONG XFltF14;
            ULONGLONG XFltF15;
            ULONGLONG XFltF16;
            ULONGLONG XFltF17;
            ULONGLONG XFltF18;
            ULONGLONG XFltF19;
            ULONGLONG XFltF20;
            ULONGLONG XFltF21;
            ULONGLONG XFltF22;
            ULONGLONG XFltF23;
            ULONGLONG XFltF24;
            ULONGLONG XFltF25;
            ULONGLONG XFltF26;
            ULONGLONG XFltF27;
            ULONGLONG XFltF28;
            ULONGLONG XFltF29;
            ULONGLONG XFltF30;
            ULONGLONG XFltF31;

            //
            // The following sections must exactly overlay the 32-bit context.
            //

            DWORD Fill1;
            DWORD Fill2;

            //
            // This section is specified/returned if the ContextFlags contains
            // the flag CONTEXT_FLOATING_POINT.
            //

            DWORD XFsr;

            //
            // This section is specified/returned if the ContextFlags contains
            // the flag CONTEXT_CONTROL.
            //
            // N.B. The registers gp, sp, and ra are defined in the integer
            //      section, but are considered part of the control context
            //      rather than part of the integer context.
            //

            DWORD XFir;
            DWORD XPsr;

            //
            // The flags values within this flag control the contents of
            // a CONTEXT record.
            //
            // If the context record is used as an input parameter, then
            // for each portion of the context record controlled by a flag
            // whose value is set, it is assumed that that portion of the
            // context record contains valid context. If the context record
            // is being used to modify a thread's context, then only that
            // portion of the threads context will be modified.
            //
            // If the context record is used as an IN OUT parameter to capture
            // the context of a thread, then only those portions of the thread's
            // context corresponding to set flags will be returned.
            //
            // The context record is never used as an OUT only parameter.
            //

            DWORD XContextFlags;

            //
            // This section is specified/returned if the ContextFlags contains
            // the flag CONTEXT_EXTENDED_INTEGER.
            //
            // N.B. The registers gp, sp, and ra are defined in this section,
            //      but are considered part of the control context rather than
            //      part of the integer  context.
            //
            // N.B. Register zero is not stored in the frame.
            //

            ULONGLONG XIntZero;
            ULONGLONG XIntAt;
            ULONGLONG XIntV0;
            ULONGLONG XIntV1;
            ULONGLONG XIntA0;
            ULONGLONG XIntA1;
            ULONGLONG XIntA2;
            ULONGLONG XIntA3;
            ULONGLONG XIntT0;
            ULONGLONG XIntT1;
            ULONGLONG XIntT2;
            ULONGLONG XIntT3;
            ULONGLONG XIntT4;
            ULONGLONG XIntT5;
            ULONGLONG XIntT6;
            ULONGLONG XIntT7;
            ULONGLONG XIntS0;
            ULONGLONG XIntS1;
            ULONGLONG XIntS2;
            ULONGLONG XIntS3;
            ULONGLONG XIntS4;
            ULONGLONG XIntS5;
            ULONGLONG XIntS6;
            ULONGLONG XIntS7;
            ULONGLONG XIntT8;
            ULONGLONG XIntT9;
            ULONGLONG XIntK0;
            ULONGLONG XIntK1;
            ULONGLONG XIntGp;
            ULONGLONG XIntSp;
            ULONGLONG XIntS8;
            ULONGLONG XIntRa;
            ULONGLONG XIntLo;
            ULONGLONG XIntHi;
        };
    };
} CONTEXT, *PCONTEXT;

// end_ntddk end_nthal

#define CONTEXT32_LENGTH 0x130          // The original 32-bit Context length (pre NT 4.0)

#endif // MIPS


#if defined(_MIPS_)

VOID
__jump_unwind (
    PVOID Fp,
    PVOID TargetPc
    );

#endif // MIPS


#if defined(_PPC_)


//
// The address of the TEB is placed into GPR 13 at context switch time
// and should never be destroyed.  To get the address of the TEB use
// the compiler intrinsic to access it directly from GPR 13.
//

#if defined(_M_PPC) && defined(_MSC_VER) && (_MSC_VER>=1000)
unsigned __gregister_get( unsigned const regnum );
#define NtCurrentTeb() ((struct _TEB *)__gregister_get(13))
#elif defined(_M_PPC)
struct _TEB * __builtin_get_gpr13(VOID);
#define NtCurrentTeb() ((struct _TEB *)__builtin_get_gpr13())
#endif


//
// Define functions to get the address of the current fiber and the
// current fiber data.
//

#define GetCurrentFiber() (((PNT_TIB)NtCurrentTeb())->FiberData)
#define GetFiberData() (*(PVOID *)(GetCurrentFiber