Source code of Windows XP (NT5)
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import "..\exdi.idl";
interface IeXdiX86_64Context; // HRESULT GetContext ([in, out] PCONTEXT_X86_64 pContext); // HRESULT SetContext ([in] CONTEXT_X86_64 Context);
cpp_quote("// The following constants are bit definitions for the ModeFlags value in CONTEXT_X86_64.")cpp_quote("// They are provided to allow debuggers to correctly disassemble instructions based on")cpp_quote("// the current operating mode of the processor.")
cpp_quote("#define X86_64_MODE_D (0x0001) // D bit from the current CS selector")cpp_quote("#define X86_64_MODE_L (0x0002) // L bit (long mode) from the current CS selector")cpp_quote("#define X86_64_MODE_LME (0x0004) // LME bit (lomg mode enable) from extended feature MSR")cpp_quote("#define X86_64_MODE_REX (0x0008) // REX bit (register extension) from extended feature MSR")
typedef struct _SEG64_DESC_INFO { DWORD64 SegBase; DWORD64 SegLimit; DWORD SegFlags; } SEG64_DESC_INFO;
typedef struct _SSE_REG { DWORD Reg0; DWORD Reg1; DWORD Reg2; DWORD Reg3; } SSE_REG;
#define NUM_SSE_REGS 16
typedef struct _CONTEXT_X86_64 { struct { BOOL fSegmentRegs; BOOL fControlRegs; BOOL fIntegerRegs; BOOL fFloatingPointRegs; BOOL fDebugRegs; BOOL fSegmentDescriptors; BOOL fSSERegisters; BOOL fSystemRegisters; } RegGroupSelection; // These flags are used to select groups of registers only // (instead of the totality) for reading or writing. // both Segment & Control registers (used if either RegGroupSelection.fSegmentRegs or // RegGroupSelection.fControlRegs is TRUE). DWORD SegCs; DWORD SegSs; // Segment registers (used if RegGroupSelection.fSegmentRegs is TRUE). // except CS and SS which are in "Segment and Control" - see above DWORD SegGs; DWORD SegFs; DWORD SegEs; DWORD SegDs; // Mode flags define the current processor mode (16/32/64 bit) DWORD64 ModeFlags; // Control registers (used if RegGroupSelection.fControlRegs is TRUE). // except CS and SS which are in "Segment and Control" - see above DWORD64 EFlags; DWORD64 Rbp; DWORD64 Rip; DWORD64 Rsp; // Integer registers (used if RegGroupSelection.fIntegerRegs is TRUE). DWORD64 Rax; DWORD64 Rbx; DWORD64 Rcx; DWORD64 Rdx; DWORD64 Rsi; DWORD64 Rdi; DWORD64 R8; DWORD64 R9; DWORD64 R10; DWORD64 R11; DWORD64 R12; DWORD64 R13; DWORD64 R14; DWORD64 R15; // Floating point registers (used if RegGroupSelection.fFloatingPointRegs is TRUE). DWORD ControlWord; DWORD StatusWord; DWORD TagWord; DWORD ErrorOffset; DWORD ErrorSelector; DWORD DataOffset; DWORD DataSelector; BYTE RegisterArea [SIZE_OF_80387_REGISTERS_IN_BYTES]; // Debug registers (used if RegGroupSelection.fDebugRegs is TRUE) DWORD64 Dr0; DWORD64 Dr1; DWORD64 Dr2; DWORD64 Dr3; DWORD64 Dr6; DWORD64 Dr7; // Descriptors and base registers (used if RegGroupSelection.fSegmentDescriptors is TRUE) SEG64_DESC_INFO DescriptorCs; SEG64_DESC_INFO DescriptorSs; SEG64_DESC_INFO DescriptorGs; SEG64_DESC_INFO DescriptorFs; SEG64_DESC_INFO DescriptorEs; SEG64_DESC_INFO DescriptorDs; DWORD64 IDTBase; DWORD64 IDTLimit; DWORD64 GDTBase; DWORD64 GDTLimit; DWORD SelLDT; SEG64_DESC_INFO SegLDT; DWORD SelTSS; SEG64_DESC_INFO SegTSS; // System registers (used if RegGroupSelection.fSystemRegisters is TRUE) DWORD64 RegCr0; DWORD64 RegCr2; DWORD64 RegCr3; DWORD64 RegCr4; DWORD64 RegCr8; // Cr8 - Task priority register. // SSE registers (used if RegGroupSelection.fSSERegisters is TRUE) DWORD RegMXCSR; SSE_REG RegSSE[NUM_SSE_REGS]; } CONTEXT_X86_64, *PCONTEXT_X86_64;
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// IeXdiX86_64Context////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// X86_64 context access interface
[ object, uuid(4795B125-6CDE-4e76-B8D3-D5ED69ECE739), helpstring("IeXdiX86_64Context interface - eXdi Context access for 64 Bit X86 processors 1.0 for Platform Builder 3.0 debugger - Microsoft 1999"), pointer_default(ref)]
interface IeXdiX86_64Context : IUnknown{
/*++
Routine Name:
GetContext
Routine Description:
Read Context - Read a set of CPU / Co-Proc registers that define the state of the target The CONTEXT.RegGroupSelection bitfield allow to select which group of register need to be read only
Argument(s):
pContext - Return context (CPU dependant structure). Note: The context is also passed in to indicate only the RegGroupSelection (which reg groups are read) Return Value:
Error status: S_OK: Function successful EXDI_E_CANNOTWHILETGTRUNNING Cannot proceed while target running. Must halt the target first. Note: this error is generated only if the probe / target does not support this operation "on the fly". see DEBUG_ACCESS_CAPABILITIES_STRUCT.fReadRegWhileRunning EXDI_E_NOTIMPL: Not implemented EXDI_E_OUTOFMEMORY: Failed to allocate necessary memory EXDI_E_INVALIDARG: One or more arguments are invalid EXDI_E_ABORT: Operation aborted EXDI_E_FAIL: Unspecified failure EXDI_E_COMMUNICATION: Communication error between host driver and target EXDI_E_USEDBYCONCURENTTHREAD: Cannot proceed immediately because resource is already used by concurent thread.
--*/
HRESULT GetContext ( [in, out] PCONTEXT_X86_64 pContext);
/*++
Routine Name:
SetContext
Routine Description:
Write Context - Write a set of CPU / Co-Proc registers that define the state of the target The CONTEXT.RegGroupSelection bitfield allow to select which group of register need to be written only
Argument(s):
pContext - Return context (CPU dependant structure). Note: The context is also passed in to indicate only the RegGroupSelection (which reg groups are read) Return Value:
Error status: S_OK: Function successful EXDI_E_CANNOTWHILETGTRUNNING Cannot proceed while target running. Must halt the target first. Note: this error is generated only if the probe / target does not support this operation "on the fly". see DEBUG_ACCESS_CAPABILITIES_STRUCT.fWriteRegWhileRunning EXDI_E_NOTIMPL: Not implemented EXDI_E_OUTOFMEMORY: Failed to allocate necessary memory EXDI_E_INVALIDARG: One or more arguments are invalid EXDI_E_ABORT: Operation aborted EXDI_E_FAIL: Unspecified failure EXDI_E_COMMUNICATION: Communication error between host driver and target EXDI_E_USEDBYCONCURENTTHREAD: Cannot proceed immediately because resource is already used by concurent thread.
--*/
HRESULT SetContext ( [in] CONTEXT_X86_64 Context);
}; // interface IeXdiX86_64Context
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