throw.c

一个实时的驱动支持库

/*
    This is a C++ run-time library for Windows kernel-mode drivers.
    Copyright (C) 2004 Bo Brant閚.
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
*/

#include <ntddk.h>
#include "cxx.h"

#if (VER_PRODUCTBUILD < 2195)
typedef ULONG ULONG_PTR;
#endif // (VER_PRODUCTBUILD < 2195)

NTSYSAPI
VOID
NTAPI
RtlRaiseException (
    IN PEXCEPTION_RECORD ExceptionRecord
    );

VOID
NTAPI
RaiseException (
    IN ULONG            ExceptionCode,
    IN ULONG            ExceptionFlags,
    IN ULONG            NumberParameters,
    IN CONST ULONG_PTR  *ExceptionInformation
    )
{
    EXCEPTION_RECORD ExceptionRecord = {
        ExceptionCode,
        ExceptionFlags & EXCEPTION_NONCONTINUABLE,
        NULL,
        RaiseException,
        NumberParameters > EXCEPTION_MAXIMUM_PARAMETERS ? EXCEPTION_MAXIMUM_PARAMETERS : NumberParameters
    };

    RtlCopyMemory(
        ExceptionRecord.ExceptionInformation,
        ExceptionInformation,
        ExceptionRecord.NumberParameters * sizeof(ULONG_PTR)
        );

    RtlRaiseException(&ExceptionRecord);
}

VOID
NTAPI
_CxxThrowException (
    IN PVOID Object,
    IN PVOID CxxExceptionType
    )
{
    ULONG_PTR ExceptionInformation[3];

    ExceptionInformation[0] = CXX_FRAME_MAGIC;
    ExceptionInformation[1] = (ULONG_PTR) Object;
    ExceptionInformation[2] = (ULONG_PTR) CxxExceptionType;

    RaiseException(
        CXX_EXCEPTION,
        EXCEPTION_NONCONTINUABLE,
        3,
        ExceptionInformation
        );
}