/****************************************************************************** * * Module Name: extrace - Support for interpreter execution tracing * *****************************************************************************/ /****************************************************************************** * * 1. Copyright Notice * * Some or all of this work - Copyright (c) 1999 - 2021, Intel Corp. * All rights reserved. * * 2. License * * 2.1. This is your license from Intel Corp. under its intellectual property * rights. You may have additional license terms from the party that provided * you this software, covering your right to use that party's intellectual * property rights. * * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a * copy of the source code appearing in this file ("Covered Code") an * irrevocable, perpetual, worldwide license under Intel's copyrights in the * base code distributed originally by Intel ("Original Intel Code") to copy, * make derivatives, distribute, use and display any portion of the Covered * Code in any form, with the right to sublicense such rights; and * * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent * license (with the right to sublicense), under only those claims of Intel * patents that are infringed by the Original Intel Code, to make, use, sell, * offer to sell, and import the Covered Code and derivative works thereof * solely to the minimum extent necessary to exercise the above copyright * license, and in no event shall the patent license extend to any additions * to or modifications of the Original Intel Code. No other license or right * is granted directly or by implication, estoppel or otherwise; * * The above copyright and patent license is granted only if the following * conditions are met: * * 3. Conditions * * 3.1. Redistribution of Source with Rights to Further Distribute Source. * Redistribution of source code of any substantial portion of the Covered * Code or modification with rights to further distribute source must include * the above Copyright Notice, the above License, this list of Conditions, * and the following Disclaimer and Export Compliance provision. In addition, * Licensee must cause all Covered Code to which Licensee contributes to * contain a file documenting the changes Licensee made to create that Covered * Code and the date of any change. Licensee must include in that file the * documentation of any changes made by any predecessor Licensee. Licensee * must include a prominent statement that the modification is derived, * directly or indirectly, from Original Intel Code. * * 3.2. Redistribution of Source with no Rights to Further Distribute Source. * Redistribution of source code of any substantial portion of the Covered * Code or modification without rights to further distribute source must * include the following Disclaimer and Export Compliance provision in the * documentation and/or other materials provided with distribution. In * addition, Licensee may not authorize further sublicense of source of any * portion of the Covered Code, and must include terms to the effect that the * license from Licensee to its licensee is limited to the intellectual * property embodied in the software Licensee provides to its licensee, and * not to intellectual property embodied in modifications its licensee may * make. * * 3.3. Redistribution of Executable. Redistribution in executable form of any * substantial portion of the Covered Code or modification must reproduce the * above Copyright Notice, and the following Disclaimer and Export Compliance * provision in the documentation and/or other materials provided with the * distribution. * * 3.4. Intel retains all right, title, and interest in and to the Original * Intel Code. * * 3.5. Neither the name Intel nor any other trademark owned or controlled by * Intel shall be used in advertising or otherwise to promote the sale, use or * other dealings in products derived from or relating to the Covered Code * without prior written authorization from Intel. * * 4. Disclaimer and Export Compliance * * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A * PARTICULAR PURPOSE. * * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY * LIMITED REMEDY. * * 4.3. Licensee shall not export, either directly or indirectly, any of this * software or system incorporating such software without first obtaining any * required license or other approval from the U. S. Department of Commerce or * any other agency or department of the United States Government. In the * event Licensee exports any such software from the United States or * re-exports any such software from a foreign destination, Licensee shall * ensure that the distribution and export/re-export of the software is in * compliance with all laws, regulations, orders, or other restrictions of the * U.S. Export Administration Regulations. Licensee agrees that neither it nor * any of its subsidiaries will export/re-export any technical data, process, * software, or service, directly or indirectly, to any country for which the * United States government or any agency thereof requires an export license, * other governmental approval, or letter of assurance, without first obtaining * such license, approval or letter. * ***************************************************************************** * * Alternatively, you may choose to be licensed under the terms of the * following license: * * 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. * * 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 MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * 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 DAMAGE. * * Alternatively, you may choose to be licensed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * *****************************************************************************/ #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) { char *Pathname = NULL; BOOLEAN Enabled = FALSE; ACPI_FUNCTION_NAME (ExStartTraceMethod); if (MethodNode) { Pathname = AcpiNsGetNormalizedPathname (MethodNode, TRUE); } 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; } } 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) { char *Pathname = NULL; BOOLEAN Enabled; ACPI_FUNCTION_NAME (ExStopTraceMethod); if (MethodNode) { Pathname = AcpiNsGetNormalizedPathname (MethodNode, TRUE); } Enabled = AcpiExInterpreterTraceEnabled (NULL); if (Enabled) { ACPI_TRACE_POINT (ACPI_TRACE_AML_METHOD, FALSE, ObjDesc ? ObjDesc->Method.AmlStart : NULL, Pathname); } /* 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; } 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); } }