linux-imx

// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0

/******************************************************************************

 *

 * Module Name: extrace - Support for interpreter execution tracing

 *

 * Copyright (C) 2000 - 2019, Intel Corp.

 *

 *****************************************************************************/

​

#include <acpi/acpi.h>

#include "accommon.h"

#include "acnamesp.h"

#include "acinterp.h"

​

#define _COMPONENT          ACPI_EXECUTER

ACPI_MODULE_NAME("extrace")

​

static union acpi_operand_object *acpi_gbl_trace_method_object = NULL;

​

/* Local prototypes */

​

#ifdef ACPI_DEBUG_OUTPUT

static const char *acpi_ex_get_trace_event_name(acpi_trace_event_type type);

#endif

​

/*******************************************************************************

 *

 * FUNCTION:    acpi_ex_interpreter_trace_enabled

 *

 * PARAMETERS:  name                - Whether method name should be matched,

 *                                    this should be checked before starting

 *                                    the tracer

 *

 * RETURN:      TRUE if interpreter trace is enabled.

 *

 * DESCRIPTION: Check whether interpreter trace is enabled

 *

 ******************************************************************************/

​

static u8 acpi_ex_interpreter_trace_enabled(char *name)

{

​

    /* Check if tracing is enabled */

​

    if (!(acpi_gbl_trace_flags & ACPI_TRACE_ENABLED)) {

        return (FALSE);

    }

​

    /*

     * Check if tracing is filtered:

     *

     * 1. If the tracer is started, acpi_gbl_trace_method_object should have

     *    been filled by the trace starter

     * 2. If the tracer is not started, acpi_gbl_trace_method_name should be

     *    matched if it is specified

     * 3. If the tracer is oneshot style, acpi_gbl_trace_method_name should

     *    not be cleared by the trace stopper during the first match

     */

    if (acpi_gbl_trace_method_object) {

        return (TRUE);

    }

​

    if (name &&