124 lines
2.9 KiB
C
124 lines
2.9 KiB
C
|
/*++
|
||
|
|
|
||
|
|
Copyright (c) 1992 Microsoft Corporation
|
||
|
|
|
||
|
|
Module Name:
|
||
|
|
|
||
|
|
kdlog.c
|
||
|
|
|
||
|
|
Abstract:
|
||
|
|
|
||
|
|
WinDbg Extension Api
|
||
|
|
|
||
|
|
Author:
|
||
|
|
|
||
|
|
Neil Sandlin (neilsa) 31-Oct-2000
|
||
|
|
|
||
|
|
Environment:
|
||
|
|
|
||
|
|
User Mode.
|
||
|
|
|
||
|
|
Revision History:
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
|
||
|
|
#include "precomp.h"
|
||
|
|
#pragma hdrstop
|
||
|
|
|
||
|
|
DECLARE_API( kdlog )
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
This routine dumps the KdLog buffer. This is logging data created
|
||
|
|
by the KD client code (e.g. KD1394.DLL).
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
args - not used
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
None
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
{
|
||
|
|
ULONG64 LogContext;
|
||
|
|
ULONG64 Index, LastIndex, Count, EntryLength, TotalLogged;
|
||
|
|
ULONG64 LogData;
|
||
|
|
CHAR buffer[256];
|
||
|
|
ULONG64 LogEntry;
|
||
|
|
ULONG bytesRead;
|
||
|
|
|
||
|
|
LogContext = GetExpression("kdcom!KdLogContext");
|
||
|
|
|
||
|
|
if (LogContext == 0) {
|
||
|
|
LogContext = GetExpression("kd1394!KdLogContext");
|
||
|
|
if (LogContext == 0) {
|
||
|
|
dprintf("Error resolving address of hal!KdDebuggerLogContext\n");
|
||
|
|
return E_INVALIDARG;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (GetFieldValue(LogContext, "_KD_DBG_LOG_CONTEXT", "Index", Index)) {
|
||
|
|
dprintf("Error resolving field 'Index'\n");
|
||
|
|
return E_INVALIDARG;
|
||
|
|
}
|
||
|
|
if (GetFieldValue(LogContext, "_KD_DBG_LOG_CONTEXT", "LastIndex", LastIndex)) {
|
||
|
|
dprintf("Error resolving field 'LastIndex'\n");
|
||
|
|
return E_INVALIDARG;
|
||
|
|
}
|
||
|
|
if (GetFieldValue(LogContext, "_KD_DBG_LOG_CONTEXT", "Count", Count)) {
|
||
|
|
dprintf("Error resolving field 'Count'\n");
|
||
|
|
return E_INVALIDARG;
|
||
|
|
}
|
||
|
|
if (GetFieldValue(LogContext, "_KD_DBG_LOG_CONTEXT", "EntryLength", EntryLength)) {
|
||
|
|
dprintf("Error resolving field 'EntryLength'\n");
|
||
|
|
return E_INVALIDARG;
|
||
|
|
}
|
||
|
|
if (GetFieldValue(LogContext, "_KD_DBG_LOG_CONTEXT", "TotalLogged", TotalLogged)) {
|
||
|
|
dprintf("Error resolving field 'TotalLogged'\n");
|
||
|
|
return E_INVALIDARG;
|
||
|
|
}
|
||
|
|
if (GetFieldValue(LogContext, "_KD_DBG_LOG_CONTEXT", "LogData", LogData)) {
|
||
|
|
dprintf("Error resolving field 'Index'\n");
|
||
|
|
return E_INVALIDARG;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
dprintf("Context Ptr %.8p TotalLogged %.8p EntryLength %.8p\n", LogContext, TotalLogged, EntryLength);
|
||
|
|
dprintf("Index %.8p LastIndex %.8p Count %.8p LogData %.8p\n\n", Index, LastIndex, Count, LogData);
|
||
|
|
|
||
|
|
if (EntryLength > 256) {
|
||
|
|
dprintf("Entry length %d too long\n", EntryLength);
|
||
|
|
return E_INVALIDARG;
|
||
|
|
}
|
||
|
|
|
||
|
|
Index = ((Index - Count) + (LastIndex+1)) % (LastIndex+1);
|
||
|
|
|
||
|
|
while(Count--) {
|
||
|
|
if (CheckControlC()) {
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
LogEntry = LogData + Index*EntryLength;
|
||
|
|
|
||
|
|
if (!ReadMemory(LogEntry, buffer, (ULONG)EntryLength, &bytesRead)) {
|
||
|
|
dprintf("ReadMemory error at %.8p\n", LogEntry);
|
||
|
|
return E_INVALIDARG;
|
||
|
|
}
|
||
|
|
|
||
|
|
dprintf("%s", buffer);
|
||
|
|
|
||
|
|
Index++;
|
||
|
|
if (Index == (LastIndex+1)) {
|
||
|
|
Index = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return S_OK;
|
||
|
|
}
|