/******************************************************************************
*
* Module Name: extrace - Support for interpreter execution tracing
*
*****************************************************************************/
/*
* Copyright (C) 2000 - 2016, Intel Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*/
#include "acpi.h"
#include "accommon.h"
#include "acnamesp.h"
#include "acinterp.h"
ACPI_MODULE_NAME ("extrace")
/* Local prototypes */
#ifdef ACPI_DEBUG_OUTPUT
static const char *
#endif
/*******************************************************************************
*
* FUNCTION: AcpiExInterpreterTraceEnabled
*
* 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 BOOLEAN
char *Name)
{
/* Check if tracing is enabled */
if (!(AcpiGbl_TraceFlags & ACPI_TRACE_ENABLED))
{
return (FALSE);
}
/*
* Check if tracing is filtered:
*
* 1. If the tracer is started, AcpiGbl_TraceMethodObject should have
* been filled by the trace starter
* 2. If the tracer is not started, AcpiGbl_TraceMethodName should be
* matched if it is specified
* 3. If the tracer is oneshot style, AcpiGbl_TraceMethodName should
* not be cleared by the trace stopper during the first match
*/
{
return (TRUE);
}
if (Name &&
{
return (FALSE);
}
if ((AcpiGbl_TraceFlags & ACPI_TRACE_ONESHOT) &&
{
return (FALSE);
}
return (TRUE);
}
/*******************************************************************************
*
* FUNCTION: AcpiExGetTraceEventName
*
* PARAMETERS: Type - Trace event type
*
* RETURN: Trace event name.
*
* DESCRIPTION: Used to obtain the full trace event name.
*
******************************************************************************/
#ifdef ACPI_DEBUG_OUTPUT
static const char *
{
switch (Type)
{
case ACPI_TRACE_AML_METHOD:
return "Method";
case ACPI_TRACE_AML_OPCODE:
return "Opcode";
case ACPI_TRACE_AML_REGION:
return "Region";
default:
return "";
}
}
#endif
/*******************************************************************************
*
* FUNCTION: AcpiExTracePoint
*
* PARAMETERS: Type - Trace event type
* Begin - TRUE if before execution
* Aml - Executed AML address
* Pathname - Object path
*
* RETURN: None
*
* DESCRIPTION: Internal interpreter execution trace.
*
******************************************************************************/
void
char *Pathname)
{
if (Pathname)
{
"%s %s [0x%p:%s] execution.\n",
}
else
{
"%s %s [0x%p] execution.\n",
Aml));
}
}
/*******************************************************************************
*
* FUNCTION: AcpiExStartTraceMethod
*
* PARAMETERS: MethodNode - Node of the method
* ObjDesc - The method object
* WalkState - current state, NULL if not yet executing
* a method.
*
* RETURN: None
*
* DESCRIPTION: Start control method execution trace
*
******************************************************************************/
void
{
if (MethodNode)
{
}
if (ACPI_FAILURE (Status))
{
goto Exit;
}
if (Enabled && !AcpiGbl_TraceMethodObject)
{
{
}
{
}
}
(void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
Exit:
if (Enabled)
{
}
if (Pathname)
{
}
}
/*******************************************************************************
*
* FUNCTION: AcpiExStopTraceMethod
*
* PARAMETERS: MethodNode - Node of the method
* ObjDesc - The method object
* WalkState - current state, NULL if not yet executing
* a method.
*
* RETURN: None
*
* DESCRIPTION: Stop control method execution trace
*
******************************************************************************/
void
{
if (MethodNode)
{
}
if (ACPI_FAILURE (Status))
{
goto ExitPath;
}
(void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
if (Enabled)
{
}
if (ACPI_FAILURE (Status))
{
goto ExitPath;
}
/* Check whether the tracer should be stopped */
if (AcpiGbl_TraceMethodObject == ObjDesc)
{
/* Disable further tracing if type is one-shot */
{
}
}
(void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
if (Pathname)
{
}
}
/*******************************************************************************
*
* FUNCTION: AcpiExStartTraceOpcode
*
* PARAMETERS: Op - The parser opcode object
* WalkState - current state, NULL if not yet executing
* a method.
*
* RETURN: None
*
* DESCRIPTION: Start opcode execution trace
*
******************************************************************************/
void
{
if (AcpiExInterpreterTraceEnabled (NULL) &&
{
}
}
/*******************************************************************************
*
* FUNCTION: AcpiExStopTraceOpcode
*
* PARAMETERS: Op - The parser opcode object
* WalkState - current state, NULL if not yet executing
* a method.
*
* RETURN: None
*
* DESCRIPTION: Stop opcode execution trace
*
******************************************************************************/
void
{
if (AcpiExInterpreterTraceEnabled (NULL) &&
{
}
}