kdmain.c

Go to the documentation of this file.

/*
 * COPYRIGHT:       See COPYING in the top level directory
 * PROJECT:         ReactOS Kernel
 * FILE:            ntoskrnl/kd/kdmain.c
 * PURPOSE:         Kernel Debugger Initialization
 *
 * PROGRAMMERS:     Alex Ionescu (alex@relsoft.net)
 */

#include <ntoskrnl.h>
#define NDEBUG
#include <debug.h>

/* VARIABLES ***************************************************************/

VOID NTAPI PspDumpThreads(BOOLEAN SystemThreads);

extern ANSI_STRING KdpLogFileName;

/* PUBLIC FUNCTIONS *********************************************************/

static PCHAR
NTAPI
KdpGetDebugMode(PCHAR Currentp2)
{
    PCHAR p1, p2 = Currentp2;
    ULONG Value;

    /* Check for Screen Debugging */
    if (!_strnicmp(p2, "SCREEN", 6))
    {
        /* Enable It */
        p2 += 6;
        KdpDebugMode.Screen = TRUE;
    }
    /* Check for Serial Debugging */
    else if (!_strnicmp(p2, "COM", 3))
    {
        /* Gheck for a valid Serial Port */
        p2 += 3;
        if (*p2 != ':')
        {
            Value = (ULONG)atol(p2);
            if (Value > 0 && Value < 5)
            {
                /* Valid port found, enable Serial Debugging */
                KdpDebugMode.Serial = TRUE;

                /* Set the port to use */
                SerialPortNumber = Value;
            }
        }
        else
        {
            Value = strtoul(p2 + 1, NULL, 0);
            if (Value)
            {
                KdpDebugMode.Serial = TRUE;
                SerialPortInfo.Address = UlongToPtr(Value);
                SerialPortNumber = 0;
            }
        }
    }
    /* Check for Debug Log Debugging */
    else if (!_strnicmp(p2, "FILE", 4))
    {
        /* Enable It */
        p2 += 4;
        KdpDebugMode.File = TRUE;
        if (*p2 == ':')
        {
            p2++;
            p1 = p2;
            while (*p2 != '\0' && *p2 != ' ') p2++;
            KdpLogFileName.MaximumLength = KdpLogFileName.Length = p2 - p1;
            KdpLogFileName.Buffer = p1;
        }
    }

    return p2;
}

NTSTATUS
NTAPI
KdDebuggerInitialize0(
    IN PLOADER_PARAMETER_BLOCK LoaderBlock OPTIONAL)
{
    ULONG i;
    PCHAR CommandLine, Port = NULL;

    if (LoaderBlock)
    {
        /* Check if we have a command line */
        CommandLine = LoaderBlock->LoadOptions;
        if (CommandLine)
        {
            /* Upcase it */
            _strupr(CommandLine);

#ifdef KDBG
            /* Get the KDBG Settings */
            KdbpGetCommandLineSettings(CommandLine);
#endif

            /* Get the port */
            Port = strstr(CommandLine, "DEBUGPORT");
        }
    }

    /* Check if we got the /DEBUGPORT parameter(s) */
    while (Port)
    {
        /* Move past the actual string, to reach the port*/
        Port += sizeof("DEBUGPORT") - 1;

        /* Now get past any spaces and skip the equal sign */
        while (*Port == ' ') Port++;
        Port++;

        /* Get the debug mode and wrapper */
        Port = KdpGetDebugMode(Port);
        Port = strstr(Port, "DEBUGPORT");
    }

    /* Use serial port then */
    if (KdpDebugMode.Value == 0)
        KdpDebugMode.Serial = TRUE;

    /* Call Providers at Phase 0 */
    for (i = 0; i < KdMax; i++)
    {
        InitRoutines[i](&DispatchTable[i], 0);
    }

    return STATUS_SUCCESS;
}

NTSTATUS
NTAPI
KdDebuggerInitialize1(
    IN PLOADER_PARAMETER_BLOCK LoaderBlock OPTIONAL)
{
    PLIST_ENTRY CurrentEntry;
    PKD_DISPATCH_TABLE CurrentTable;

    /* Call the registered handlers */
    CurrentEntry = KdProviders.Flink;
    while (CurrentEntry != &KdProviders)
    {
        /* Get the current table */
        CurrentTable = CONTAINING_RECORD(CurrentEntry,
                                         KD_DISPATCH_TABLE,
                                         KdProvidersList);

        /* Call it */
        CurrentTable->KdpInitRoutine(CurrentTable, 1);

        /* Next Table */
        CurrentEntry = CurrentEntry->Flink;
    }

    NtGlobalFlag |= FLG_STOP_ON_EXCEPTION;

    return STATUS_SUCCESS;
}

 /* EOF */