187 lines
4.1 KiB
C
187 lines
4.1 KiB
C
/*++
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Copyright (c) 1990-2002 Microsoft Corporation
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Module Name:
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dump.c
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Abstract:
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This module supplies support for building a mini-dump file.
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Author:
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Oleg Kagan (olegk) Jun. 2002
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Environment:
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kernel mode only
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Revision History:
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--*/
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#include "videoprt.h"
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#define TRIAGE_DUMP_DATA_SIZE (TRIAGE_DUMP_SIZE - sizeof(ULONG))
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ULONG
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pVpAppendSecondaryMinidumpData(
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PVOID pvSecondaryData,
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ULONG ulSecondaryDataSize,
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PVOID pvDump
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)
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/*++
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Routine Description:
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Adds precollected video driver specific data
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Arguments:
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pvDump - points to the begiinig of the dump buffer
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pvSecondaryDumpData - points to the secondary data buffer
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ulSecondaryDataSize - size of the secondary data buffer
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Return Value:
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Resulting length of the minidump
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--*/
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{
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PMEMORY_DUMP pDump = (PMEMORY_DUMP)pvDump;
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ULONG_PTR DumpDataEnd = (ULONG_PTR)pDump + TRIAGE_DUMP_DATA_SIZE;
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PDUMP_HEADER pdh = &(pDump->Header);
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PVOID pBuffer = (PVOID)((ULONG_PTR)pvDump + TRIAGE_DUMP_SIZE);
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PDUMP_BLOB_FILE_HEADER BlobFileHdr = (PDUMP_BLOB_FILE_HEADER)(pBuffer);
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PDUMP_BLOB_HEADER BlobHdr = (PDUMP_BLOB_HEADER)(BlobFileHdr + 1);
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if (!pvDump) return 0;
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if (pvSecondaryData && ulSecondaryDataSize) {
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if (ulSecondaryDataSize > MAX_SECONDARY_DUMP_SIZE)
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ulSecondaryDataSize = MAX_SECONDARY_DUMP_SIZE;
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pdh->RequiredDumpSpace.QuadPart = TRIAGE_DUMP_SIZE + ulSecondaryDataSize;
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BlobFileHdr->Signature1 = DUMP_BLOB_SIGNATURE1;
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BlobFileHdr->Signature2 = DUMP_BLOB_SIGNATURE2;
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BlobFileHdr->HeaderSize = sizeof(*BlobFileHdr);
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BlobFileHdr->BuildNumber = NtBuildNumber;
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BlobHdr->HeaderSize = sizeof(*BlobHdr);
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BlobHdr->Tag = VpBugcheckGUID;
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BlobHdr->PrePad = 0;
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BlobHdr->PostPad = MAX_SECONDARY_DUMP_SIZE - ulSecondaryDataSize;
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BlobHdr->DataSize = ulSecondaryDataSize;
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RtlCopyMemory((PVOID)(BlobHdr + 1), pvSecondaryData, ulSecondaryDataSize);
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}
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return (ULONG)pdh->RequiredDumpSpace.QuadPart;
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}
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VOID
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VpNotifyEaData(
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PDEVICE_OBJECT DeviceObject,
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PVOID pvDump
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)
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{
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PDEVICE_OBJECT pPdo = IoGetDeviceAttachmentBaseRef(DeviceObject);
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if (pPdo) {
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//
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// Find the FDO that matches this PDO
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//
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PFDO_EXTENSION CurrFdo = FdoHead;
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while (CurrFdo) {
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if (CurrFdo->PhysicalDeviceObject == pPdo) {
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VpBugcheckDeviceObject = CurrFdo->FunctionalDeviceObject;
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}
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CurrFdo = CurrFdo->NextFdoExtension;
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}
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ASSERT(VpBugcheckDeviceObject != NULL);
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if (pvDump) {
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if (!VpDump) {
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VpDump = ExAllocatePoolWithTag(PagedPool,
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TRIAGE_DUMP_SIZE + 0x1000, // XXX olegk - why 1000? why not 2*TRIAGE_DUMP_SIZE?
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VP_TAG);
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}
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if (VpDump) memcpy(VpDump, pvDump, TRIAGE_DUMP_SIZE + 0x1000);
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}
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ObDereferenceObject(pPdo);
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}
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}
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PRTL_PROCESS_MODULES
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WdpGetLoadedModuleList(
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VOID
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)
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/*++
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Routine Description:
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This routine returns a pointer to a list of loaded modules.
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Arguments:
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None.
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Return Value:
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A pointer to memory with the loaded module list.
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Notes:
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The caller is responsible for freeing the memory when no longer needed.
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--*/
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{
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PRTL_PROCESS_MODULES Buffer = NULL;
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ULONG BufferSize;
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ULONG ReturnLength = 4096;
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NTSTATUS Status;
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do
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{
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if (Buffer)
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{
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ExFreePool(Buffer);
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}
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BufferSize = ReturnLength;
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Buffer = ExAllocatePoolWithTag(NonPagedPool, BufferSize, VP_TAG);
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if (Buffer == NULL)
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{
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break;
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}
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Status = ZwQuerySystemInformation(SystemModuleInformation,
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Buffer,
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BufferSize,
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&ReturnLength);
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} while (Status == STATUS_INFO_LENGTH_MISMATCH);
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return Buffer;
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}
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