| /****************************************************************************** |
| * |
| * 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" |
| |
| |
| #define _COMPONENT ACPI_EXECUTER |
| ACPI_MODULE_NAME ("extrace") |
| |
| |
| static ACPI_OPERAND_OBJECT *AcpiGbl_TraceMethodObject = NULL; |
| |
| /* Local prototypes */ |
| |
| #ifdef ACPI_DEBUG_OUTPUT |
| static const char * |
| AcpiExGetTraceEventName ( |
| ACPI_TRACE_EVENT_TYPE Type); |
| #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 |
| AcpiExInterpreterTraceEnabled ( |
| 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 |
| */ |
| if (AcpiGbl_TraceMethodObject) |
| { |
| return (TRUE); |
| } |
| |
| if (Name && |
| (AcpiGbl_TraceMethodName && |
| strcmp (AcpiGbl_TraceMethodName, Name))) |
| { |
| return (FALSE); |
| } |
| |
| if ((AcpiGbl_TraceFlags & ACPI_TRACE_ONESHOT) && |
| !AcpiGbl_TraceMethodName) |
| { |
| 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 * |
| AcpiExGetTraceEventName ( |
| ACPI_TRACE_EVENT_TYPE Type) |
| { |
| |
| 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 |
| AcpiExTracePoint ( |
| ACPI_TRACE_EVENT_TYPE Type, |
| BOOLEAN Begin, |
| UINT8 *Aml, |
| char *Pathname) |
| { |
| |
| ACPI_FUNCTION_NAME (ExTracePoint); |
| |
| |
| if (Pathname) |
| { |
| ACPI_DEBUG_PRINT ((ACPI_DB_TRACE_POINT, |
| "%s %s [0x%p:%s] execution.\n", |
| AcpiExGetTraceEventName (Type), Begin ? "Begin" : "End", |
| Aml, Pathname)); |
| } |
| else |
| { |
| ACPI_DEBUG_PRINT ((ACPI_DB_TRACE_POINT, |
| "%s %s [0x%p] execution.\n", |
| AcpiExGetTraceEventName (Type), Begin ? "Begin" : "End", |
| 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 |
| AcpiExStartTraceMethod ( |
| ACPI_NAMESPACE_NODE *MethodNode, |
| ACPI_OPERAND_OBJECT *ObjDesc, |
| ACPI_WALK_STATE *WalkState) |
| { |
| ACPI_STATUS Status; |
| char *Pathname = NULL; |
| BOOLEAN Enabled = FALSE; |
| |
| |
| ACPI_FUNCTION_NAME (ExStartTraceMethod); |
| |
| |
| if (MethodNode) |
| { |
| Pathname = AcpiNsGetNormalizedPathname (MethodNode, TRUE); |
| } |
| |
| Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); |
| if (ACPI_FAILURE (Status)) |
| { |
| goto Exit; |
| } |
| |
| Enabled = AcpiExInterpreterTraceEnabled (Pathname); |
| if (Enabled && !AcpiGbl_TraceMethodObject) |
| { |
| AcpiGbl_TraceMethodObject = ObjDesc; |
| AcpiGbl_OriginalDbgLevel = AcpiDbgLevel; |
| AcpiGbl_OriginalDbgLayer = AcpiDbgLayer; |
| AcpiDbgLevel = ACPI_TRACE_LEVEL_ALL; |
| AcpiDbgLayer = ACPI_TRACE_LAYER_ALL; |
| |
| if (AcpiGbl_TraceDbgLevel) |
| { |
| AcpiDbgLevel = AcpiGbl_TraceDbgLevel; |
| } |
| |
| if (AcpiGbl_TraceDbgLayer) |
| { |
| AcpiDbgLayer = AcpiGbl_TraceDbgLayer; |
| } |
| } |
| |
| (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); |
| |
| Exit: |
| if (Enabled) |
| { |
| ACPI_TRACE_POINT (ACPI_TRACE_AML_METHOD, TRUE, |
| ObjDesc ? ObjDesc->Method.AmlStart : NULL, Pathname); |
| } |
| |
| if (Pathname) |
| { |
| ACPI_FREE (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 |
| AcpiExStopTraceMethod ( |
| ACPI_NAMESPACE_NODE *MethodNode, |
| ACPI_OPERAND_OBJECT *ObjDesc, |
| ACPI_WALK_STATE *WalkState) |
| { |
| ACPI_STATUS Status; |
| char *Pathname = NULL; |
| BOOLEAN Enabled; |
| |
| |
| ACPI_FUNCTION_NAME (ExStopTraceMethod); |
| |
| |
| if (MethodNode) |
| { |
| Pathname = AcpiNsGetNormalizedPathname (MethodNode, TRUE); |
| } |
| |
| Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); |
| if (ACPI_FAILURE (Status)) |
| { |
| goto ExitPath; |
| } |
| |
| Enabled = AcpiExInterpreterTraceEnabled (NULL); |
| |
| (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); |
| |
| if (Enabled) |
| { |
| ACPI_TRACE_POINT (ACPI_TRACE_AML_METHOD, FALSE, |
| ObjDesc ? ObjDesc->Method.AmlStart : NULL, Pathname); |
| } |
| |
| Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); |
| 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 */ |
| |
| if (AcpiGbl_TraceFlags & ACPI_TRACE_ONESHOT) |
| { |
| AcpiGbl_TraceMethodName = NULL; |
| } |
| |
| AcpiDbgLevel = AcpiGbl_OriginalDbgLevel; |
| AcpiDbgLayer = AcpiGbl_OriginalDbgLayer; |
| AcpiGbl_TraceMethodObject = NULL; |
| } |
| |
| (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); |
| |
| ExitPath: |
| if (Pathname) |
| { |
| ACPI_FREE (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 |
| AcpiExStartTraceOpcode ( |
| ACPI_PARSE_OBJECT *Op, |
| ACPI_WALK_STATE *WalkState) |
| { |
| |
| ACPI_FUNCTION_NAME (ExStartTraceOpcode); |
| |
| |
| if (AcpiExInterpreterTraceEnabled (NULL) && |
| (AcpiGbl_TraceFlags & ACPI_TRACE_OPCODE)) |
| { |
| ACPI_TRACE_POINT (ACPI_TRACE_AML_OPCODE, TRUE, |
| Op->Common.Aml, Op->Common.AmlOpName); |
| } |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * 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 |
| AcpiExStopTraceOpcode ( |
| ACPI_PARSE_OBJECT *Op, |
| ACPI_WALK_STATE *WalkState) |
| { |
| |
| ACPI_FUNCTION_NAME (ExStopTraceOpcode); |
| |
| |
| if (AcpiExInterpreterTraceEnabled (NULL) && |
| (AcpiGbl_TraceFlags & ACPI_TRACE_OPCODE)) |
| { |
| ACPI_TRACE_POINT (ACPI_TRACE_AML_OPCODE, FALSE, |
| Op->Common.Aml, Op->Common.AmlOpName); |
| } |
| } |
