dbxface.c

acpi tools for linux include acpiexec and acpixtract

        break;
    }

    /*
     * Under certain debug conditions, display this opcode and its operands
     */
    if ((AcpiGbl_DbOutputToFile)            ||
        (AcpiGbl_CmSingleStep)              ||
        (AcpiDbgLevel & ACPI_LV_PARSE))
    {
        if ((AcpiGbl_DbOutputToFile)        ||
            (AcpiDbgLevel & ACPI_LV_PARSE))
        {
            AcpiOsPrintf ("\n[AmlDebug] Next AML Opcode to execute:\n");
        }

        /*
         * Display this op (and only this op - zero out the NEXT field
         * temporarily, and disable parser trace output for the duration of
         * the display because we don't want the extraneous debug output)
         */
        OriginalDebugLevel = AcpiDbgLevel;
        AcpiDbgLevel &= ~(ACPI_LV_PARSE | ACPI_LV_FUNCTIONS);
        Next = Op->Common.Next;
        Op->Common.Next = NULL;


        DisplayOp = Op;
        ParentOp = Op->Common.Parent;
        if (ParentOp)
        {
            if ((WalkState->ControlState) &&
                (WalkState->ControlState->Common.State ==
                    ACPI_CONTROL_PREDICATE_EXECUTING))
            {
                /*
                 * We are executing the predicate of an IF or WHILE statement
                 * Search upwards for the containing IF or WHILE so that the
                 * entire predicate can be displayed.
                 */
                while (ParentOp)
                {
                    if ((ParentOp->Common.AmlOpcode == AML_IF_OP) ||
                        (ParentOp->Common.AmlOpcode == AML_WHILE_OP))
                    {
                        DisplayOp = ParentOp;
                        break;
                    }
                    ParentOp = ParentOp->Common.Parent;
                }
            }
            else
            {
                while (ParentOp)
                {
                    if ((ParentOp->Common.AmlOpcode == AML_IF_OP)     ||
                        (ParentOp->Common.AmlOpcode == AML_ELSE_OP)   ||
                        (ParentOp->Common.AmlOpcode == AML_SCOPE_OP)  ||
                        (ParentOp->Common.AmlOpcode == AML_METHOD_OP) ||
                        (ParentOp->Common.AmlOpcode == AML_WHILE_OP))
                    {
                        break;
                    }
                    DisplayOp = ParentOp;
                    ParentOp = ParentOp->Common.Parent;
                }
            }
        }

        /* Now we can display it */

        AcpiDmDisassemble (WalkState, DisplayOp, ACPI_UINT32_MAX);

        if ((Op->Common.AmlOpcode == AML_IF_OP) ||
            (Op->Common.AmlOpcode == AML_WHILE_OP))
        {
            if (WalkState->ControlState->Common.Value)
            {
                AcpiOsPrintf ("Predicate = [True], IF block was executed\n");
            }
            else
            {
                AcpiOsPrintf ("Predicate = [False], Skipping IF block\n");
            }
        }
        else if (Op->Common.AmlOpcode == AML_ELSE_OP)
        {
            AcpiOsPrintf ("Predicate = [False], ELSE block was executed\n");
        }

        /* Restore everything */

        Op->Common.Next = Next;
        AcpiOsPrintf ("\n");
        if ((AcpiGbl_DbOutputToFile)        ||
            (AcpiDbgLevel & ACPI_LV_PARSE))
        {
            AcpiOsPrintf ("\n");
        }
        AcpiDbgLevel = OriginalDebugLevel;
    }

    /* If we are not single stepping, just continue executing the method */

    if (!AcpiGbl_CmSingleStep)
    {
        return (AE_OK);
    }

    /*
     * If we are executing a step-to-call command,
     * Check if this is a method call.
     */
    if (AcpiGbl_StepToNextCall)
    {
        if (Op->Common.AmlOpcode != AML_INT_METHODCALL_OP)
        {
            /* Not a method call, just keep executing */

            return (AE_OK);
        }

        /* Found a method call, stop executing */

        AcpiGbl_StepToNextCall = FALSE;
    }

    /*
     * If the next opcode is a method call, we will "step over" it
     * by default.
     */
    if (Op->Common.AmlOpcode == AML_INT_METHODCALL_OP)
    {
        /* Force no more single stepping while executing called method */

        AcpiGbl_CmSingleStep = FALSE;

        /*
         * Set the breakpoint on/before the call, it will stop execution
         * as soon as we return
         */
        WalkState->MethodBreakpoint = 1;  /* Must be non-zero! */
    }


    Status = AcpiDbStartCommand (WalkState, Op);

    /* User commands complete, continue execution of the interrupted method */

    return (Status);
}


/*******************************************************************************
 *
 * FUNCTION:    AcpiDbInitialize
 *
 * PARAMETERS:  None
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Init and start debugger
 *
 ******************************************************************************/

ACPI_STATUS
AcpiDbInitialize (
    void)
{
    ACPI_STATUS             Status;


    /* Init globals */

    AcpiGbl_DbBuffer            = NULL;
    AcpiGbl_DbFilename          = NULL;
    AcpiGbl_DbOutputToFile      = FALSE;

    AcpiGbl_DbDebugLevel        = ACPI_LV_VERBOSITY2;
    AcpiGbl_DbConsoleDebugLevel = ACPI_NORMAL_DEFAULT | ACPI_LV_TABLES;
    AcpiGbl_DbOutputFlags       = ACPI_DB_CONSOLE_OUTPUT;

    AcpiGbl_DbOpt_tables        = FALSE;
    AcpiGbl_DbOpt_disasm        = FALSE;
    AcpiGbl_DbOpt_stats         = FALSE;
    AcpiGbl_DbOpt_verbose       = TRUE;
    AcpiGbl_DbOpt_ini_methods   = TRUE;

    AcpiGbl_DbBuffer = AcpiOsAllocate (ACPI_DEBUG_BUFFER_SIZE);
    if (!AcpiGbl_DbBuffer)
    {
        return (AE_NO_MEMORY);
    }
    ACPI_MEMSET (AcpiGbl_DbBuffer, 0, ACPI_DEBUG_BUFFER_SIZE);

    /* Initial scope is the root */

    AcpiGbl_DbScopeBuf [0] = '\\';
    AcpiGbl_DbScopeBuf [1] =  0;
    AcpiGbl_DbScopeNode = AcpiGbl_RootNode;

    /*
     * If configured for multi-thread support, the debug executor runs in
     * a separate thread so that the front end can be in another address
     * space, environment, or even another machine.
     */
    if (AcpiGbl_DebuggerConfiguration & DEBUGGER_MULTI_THREADED)
    {
        /* These were created with one unit, grab it */

        Status = AcpiUtAcquireMutex (ACPI_MTX_DEBUG_CMD_COMPLETE);
        if (ACPI_FAILURE (Status))
        {
            AcpiOsPrintf ("Could not get debugger mutex\n");
            return (Status);
        }

        Status = AcpiUtAcquireMutex (ACPI_MTX_DEBUG_CMD_READY);
        if (ACPI_FAILURE (Status))
        {
            AcpiOsPrintf ("Could not get debugger mutex\n");
            return (Status);
        }

        /* Create the debug execution thread to execute commands */

        Status = AcpiOsExecute (OSL_DEBUGGER_THREAD, AcpiDbExecuteThread, NULL);
        if (ACPI_FAILURE (Status))
        {
            AcpiOsPrintf ("Could not start debugger thread\n");
            return (Status);
        }
    }

    if (!AcpiGbl_DbOpt_verbose)
    {
        AcpiGbl_DbOpt_disasm = TRUE;
        AcpiGbl_DbOpt_stats = FALSE;
    }

    return (AE_OK);
}


/*******************************************************************************
 *
 * FUNCTION:    AcpiDbTerminate
 *
 * PARAMETERS:  None
 *
 * RETURN:      None
 *
 * DESCRIPTION: Stop debugger
 *
 ******************************************************************************/

void
AcpiDbTerminate (
    void)
{

    if (AcpiGbl_DbTablePtr)
    {
        AcpiOsFree (AcpiGbl_DbTablePtr);
    }
    if (AcpiGbl_DbBuffer)
    {
        AcpiOsFree (AcpiGbl_DbBuffer);
    }
}


#ifdef ACPI_OBSOLETE_FUNCTIONS
/*******************************************************************************
 *
 * FUNCTION:    AcpiDbMethodEnd
 *
 * PARAMETERS:  WalkState       - Current walk
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Called at method termination
 *
 ******************************************************************************/

void
AcpiDbMethodEnd (
    ACPI_WALK_STATE         *WalkState)
{

    if (!AcpiGbl_CmSingleStep)
    {
        return;
    }

    AcpiOsPrintf ("<Method Terminating>\n");

    AcpiDbStartCommand (WalkState, NULL);
}
#endif

#endif /* ACPI_DEBUGGER */