typedef struct _CAPTURE_BACKTRACE_THREAD_CONTEXT
{
    BOOLEAN Local;
    KAPC Apc;
    KEVENT CompletedEvent;
    ULONG FramesToSkip;
    ULONG FramesToCapture;
    PVOID *BackTrace;
    ULONG CapturedFrames;
    ULONG BackTraceHash;
} CAPTURE_BACKTRACE_THREAD_CONTEXT, *PCAPTURE_BACKTRACE_THREAD_CONTEXT;

KKERNEL_ROUTINE KphpCaptureStackBackTraceThreadSpecialApc;

VOID KphpCaptureStackBackTraceThreadSpecialApc(
    _In_ PRKAPC Apc,
    _Inout_opt_ PKNORMAL_ROUTINE *NormalRoutine,
    _Inout_opt_ PVOID *NormalContext,
    _Inout_ PVOID *SystemArgument1,
    _Inout_ PVOID *SystemArgument2
    );

#ifdef ALLOC_PRAGMA
#pragma alloc_text(PAGE, KpiOpenThread)
#pragma alloc_text(PAGE, KpiOpenThreadProcess)
#pragma alloc_text(PAGE, KphCaptureStackBackTraceThread)
#pragma alloc_text(PAGE, KphpCaptureStackBackTraceThreadSpecialApc)
#pragma alloc_text(PAGE, KpiCaptureStackBackTraceThread)
#pragma alloc_text(PAGE, KpiQueryInformationThread)
#pragma alloc_text(PAGE, KpiSetInformationThread)
#endif