FreeBSD/Linux Kernel Cross Reference
sys/contrib/dev/acpica/compiler/aslxrefout.c

     /******************************************************************************
      *
      * Module Name: aslxrefout.c - support for optional cross-reference file
      *
      *****************************************************************************/
     
     /******************************************************************************
      *
      * 1. Copyright Notice
     *
     * Some or all of this work - Copyright (c) 1999 - 2022, 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 <contrib/dev/acpica/compiler/aslcompiler.h>
   #include "aslcompiler.y.h"
   #include <contrib/dev/acpica/include/acnamesp.h>
   #include <contrib/dev/acpica/include/acparser.h>
   #include <contrib/dev/acpica/include/amlcode.h>
   
   #define _COMPONENT          ACPI_COMPILER
           ACPI_MODULE_NAME    ("aslxrefout")
   
   
   /* Local prototypes */
   
   static ACPI_STATUS
   OtXrefWalkPart2 (
       ACPI_PARSE_OBJECT       *Op,
       UINT32                  Level,
       void                    *Context);
   
   static ACPI_STATUS
   OtXrefWalkPart3 (
       ACPI_PARSE_OBJECT       *Op,
       UINT32                  Level,
       void                    *Context);
   
   static ACPI_STATUS
   OtXrefAnalysisWalkPart1 (
       ACPI_PARSE_OBJECT       *Op,
       UINT32                  Level,
       void                    *Context);
   
   
   static ACPI_STATUS
   OtXrefAnalysisWalkPart2 (
       ACPI_PARSE_OBJECT       *Op,
       UINT32                  Level,
       void                    *Context);
   
   static ACPI_STATUS
   OtXrefAnalysisWalkPart3 (
       ACPI_PARSE_OBJECT       *Op,
       UINT32                  Level,
       void                    *Context);
   
   
   /*******************************************************************************
    *
    * FUNCTION:    OtPrintHeaders
    *
    * PARAMETERS:  Message             - Main header message
    *
    * RETURN:      None
    *
    * DESCRIPTION: Emits the main header message along with field descriptions
    *
    ******************************************************************************/
   
   void
   OtPrintHeaders (
       char                    *Message)
   {
       UINT32                  Length;
   
   
       Length = strlen (Message);
   
       FlPrintFile (ASL_FILE_XREF_OUTPUT, "\n\n%s\n", Message);
       while (Length)
       {
           FlPrintFile (ASL_FILE_XREF_OUTPUT, "-");
           Length--;
       }
   
       FlPrintFile (ASL_FILE_XREF_OUTPUT, "\n\nLineno   %-40s Description\n",
           "Full Pathname");
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    OtCreateXrefFile
    *
    * PARAMETERS:  None
    *
    * RETURN:      None
    *
    * DESCRIPTION  Main entry point for parts 2 and 3 of the cross-reference
    *              file.
    *
    ******************************************************************************/
   
   void
   OtCreateXrefFile (
       void)
   {
       ASL_XREF_INFO           XrefInfo;
   
   
       /* Build cross-reference output file if requested */
   
       if (!AslGbl_CrossReferenceOutput)
       {
           return;
       }
   
       memset (&XrefInfo, 0, sizeof (ASL_XREF_INFO));
   
       /* Cross-reference output file, part 2 (Method invocations) */
   
       OtPrintHeaders ("Part 2: Method Reference Map "
           "(Invocations of each user-defined control method)");
   
       TrWalkParseTree (AslGbl_ParseTreeRoot, ASL_WALK_VISIT_DOWNWARD,
           OtXrefWalkPart2, NULL, &XrefInfo);
   
       /* Cross-reference output file, part 3 (All other object refs) */
   
       OtPrintHeaders ("Part 3: Full Object Reference Map "
           "(Methods that reference each object in namespace");
   
       TrWalkParseTree (AslGbl_ParseTreeRoot, ASL_WALK_VISIT_DOWNWARD,
           OtXrefWalkPart3, NULL, &XrefInfo);
   
       /* Cross-reference summary */
   
       FlPrintFile (ASL_FILE_XREF_OUTPUT, "\n\nObject Summary\n");
   
       FlPrintFile (ASL_FILE_XREF_OUTPUT,
           "\nTotal methods:                   %u\n",
           XrefInfo.TotalPredefinedMethods + XrefInfo.TotalUserMethods);
       FlPrintFile (ASL_FILE_XREF_OUTPUT,
           "Total predefined methods:        %u\n",
           XrefInfo.TotalPredefinedMethods);
   
       FlPrintFile (ASL_FILE_XREF_OUTPUT,
           "\nTotal user methods:              %u\n",
           XrefInfo.TotalUserMethods);
       FlPrintFile (ASL_FILE_XREF_OUTPUT,
           "Total unreferenced user methods  %u\n",
           XrefInfo.TotalUnreferenceUserMethods);
   
       FlPrintFile (ASL_FILE_XREF_OUTPUT,
           "\nTotal defined objects:           %u\n",
           XrefInfo.TotalObjects);
       FlPrintFile (ASL_FILE_XREF_OUTPUT,
           "Total unreferenced objects:      %u\n",
           XrefInfo.TotalUnreferencedObjects);
   }
   
   
   /*
    * Part 1 of the cross reference file. This part emits the namespace objects
    * that are referenced by each control method in the namespace.
    *
    * Part 2 and 3 are below part 1.
    */
   
   /*******************************************************************************
    *
    * FUNCTION:    OtXrefWalkPart1
    *
    * PARAMETERS:  Op                      - Current parse Op
    *              Level                   - Current tree nesting level
    *              MethodInfo              - Info block for the current method
    *
    *
    * RETURN:      None
    *
    * DESCRIPTION: Entry point for the creation of the method call reference map.
    *              For each control method in the namespace, all other methods
    *              that invoke the method are listed. Predefined names/methods
    *              that start with an underscore are ignored, because these are
    *              essentially external/public interfaces.
   
    * DESCRIPTION: Entry point for the creation of the object reference map.
    *              For each control method in the namespace, all objects that
    *              are referenced by the method are listed.
    *
    *              Called during a normal namespace walk, once per namespace
    *              object. (MtMethodAnalysisWalkBegin)
    *
    ******************************************************************************/
   
   void
   OtXrefWalkPart1 (
       ACPI_PARSE_OBJECT       *Op,
       UINT32                  Level,
       ASL_METHOD_INFO         *MethodInfo)
   {
       ACPI_NAMESPACE_NODE     *Node;
       ACPI_PARSE_OBJECT       *NextOp;
       ACPI_PARSE_OBJECT       *FieldOp;
       char                    *ParentPath;
       UINT32                  Length;
       ACPI_STATUS             Status;
   
   
       switch (Op->Asl.ParseOpcode)
       {
       case PARSEOP_NAMESEG:
       case PARSEOP_NAMESTRING:
       case PARSEOP_METHODCALL:
   
           if (!MethodInfo ||
               (MethodInfo->Op->Asl.Child == Op) ||
               !Op->Asl.Node)
           {
               break;
           }
   
           MethodInfo->CurrentOp = Op;
           Node = Op->Asl.Node;
   
           /* Find all objects referenced by this method */
   
           Status = TrWalkParseTree (MethodInfo->Op, ASL_WALK_VISIT_DOWNWARD,
               OtXrefAnalysisWalkPart1, NULL, MethodInfo);
   
           if (Status == AE_CTRL_TERMINATE)
           {
               ParentPath = AcpiNsGetNormalizedPathname (Node, TRUE);
   
               FlPrintFile (ASL_FILE_XREF_OUTPUT, "            %-40s %s",
                   ParentPath, AcpiUtGetTypeName (Node->Type));
               ACPI_FREE (ParentPath);
   
               switch (Node->Type)
               {
                   /* Handle externals */
   
               case ACPI_TYPE_ANY:
               case ACPI_TYPE_FIELD_UNIT:
   
                   FlPrintFile (ASL_FILE_XREF_OUTPUT, " <External Object>");
                   break;
   
               case ACPI_TYPE_INTEGER:
   
                   FlPrintFile (ASL_FILE_XREF_OUTPUT, " %8.8X%8.8X",
                       ACPI_FORMAT_UINT64 (Op->Asl.Value.Integer));
                   break;
   
               case ACPI_TYPE_METHOD:
   
                   FlPrintFile (ASL_FILE_XREF_OUTPUT, " Invocation (%u args)",
                       Node->ArgCount);
                   break;
   
               case ACPI_TYPE_BUFFER_FIELD:
   
                   NextOp = Node->Op;              /* Create Buffer Field Op */
                   switch (NextOp->Asl.ParseOpcode)
                   {
                   case PARSEOP_CREATEBITFIELD:
                       Length = 1;
                       break;
   
                   case PARSEOP_CREATEBYTEFIELD:
                       Length = 8;
                       break;
   
                   case PARSEOP_CREATEWORDFIELD:
                       Length = 16;
                       break;
   
                   case PARSEOP_CREATEDWORDFIELD:
                       Length = 32;
                       break;
   
                   case PARSEOP_CREATEQWORDFIELD:
                       Length = 64;
                       break;
   
                   default:
                       Length = 0;
                       break;
                   }
   
                   NextOp = NextOp->Asl.Child;     /* Buffer name */
   
                   if (!NextOp->Asl.ExternalName)
                   {
                       FlPrintFile (ASL_FILE_XREF_OUTPUT, " in Arg/Local");
                   }
                   else
                   {
                       ParentPath = AcpiNsGetNormalizedPathname (
                           NextOp->Asl.Node, TRUE);
   
                       FlPrintFile (ASL_FILE_XREF_OUTPUT, " (%.2u bit) in Buffer %s",
                           Length, ParentPath);
                       ACPI_FREE (ParentPath);
                   }
                   break;
   
               case ACPI_TYPE_LOCAL_REGION_FIELD:
   
                   NextOp = Node->Op;
                   FieldOp = NextOp->Asl.Parent;
                   NextOp = FieldOp->Asl.Child;
   
                   ParentPath = AcpiNsGetNormalizedPathname (
                       NextOp->Asl.Node, TRUE);
   
                   FlPrintFile (ASL_FILE_XREF_OUTPUT, " (%.2u bit) in Region %s",
                       (UINT32) Node->Op->Asl.Child->Asl.Value.Integer,
                       ParentPath);
                   ACPI_FREE (ParentPath);
   
                   if (FieldOp->Asl.ParseOpcode == PARSEOP_FIELD)
                   {
                       Node = NextOp->Asl.Node;        /* Region node */
                       NextOp = Node->Op;              /* PARSEOP_REGION */
                       NextOp = NextOp->Asl.Child;     /* Region name */
                       NextOp = NextOp->Asl.Next;
   
                       /* Get region space/addr/len? */
   
                       FlPrintFile (ASL_FILE_XREF_OUTPUT, " (%s)",
                           AcpiUtGetRegionName ((UINT8)
                           NextOp->Asl.Value.Integer));
                   }
                   break;
   
               default:
                   break;
               }
   
               FlPrintFile (ASL_FILE_XREF_OUTPUT, "\n");
           }
           break;
   
       case PARSEOP_METHOD:
   
           ParentPath = AcpiNsGetNormalizedPathname (Op->Asl.Node, TRUE);
   
           FlPrintFile (ASL_FILE_XREF_OUTPUT,
               "\n[%5u]  %-40s %s Declaration (%u args)\n",
               Op->Asl.LogicalLineNumber, ParentPath,
               AcpiUtGetTypeName (Op->Asl.Node->Type), Op->Asl.Node->ArgCount);
   
           ACPI_FREE (ParentPath);
           break;
   
       default:
           break;
       }
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    OtXrefAnalysisWalkPart1
    *
    * PARAMETERS:  ASL_WALK_CALLBACK
    *
    * RETURN:      Status
    *
    * DESCRIPTION: Secondary walk for cross-reference part 1.
    *
    ******************************************************************************/
   
   static ACPI_STATUS
   OtXrefAnalysisWalkPart1 (
       ACPI_PARSE_OBJECT       *Op,
       UINT32                  Level,
       void                    *Context)
   {
       ASL_METHOD_INFO         *MethodInfo = (ASL_METHOD_INFO *) Context;
       ACPI_PARSE_OBJECT       *Next;
   
   
       /* Only interested in name string Ops -- ignore all others */
   
       if ((Op->Asl.ParseOpcode != PARSEOP_NAMESEG) &&
           (Op->Asl.ParseOpcode != PARSEOP_NAMESTRING) &&
           (Op->Asl.ParseOpcode != PARSEOP_METHODCALL))
       {
           return (AE_OK);
       }
   
       /* No node means a locally declared object -- ignore */
   
       if (!Op->Asl.Node)
       {
           return (AE_OK);
       }
   
       /* When we encounter the source Op, we are done */
   
       Next = MethodInfo->CurrentOp;
       if (Next == Op)
       {
           return (AE_CTRL_TERMINATE);
       }
   
       /* If we have a name match, this Op is a duplicate */
   
       if ((Next->Asl.ParseOpcode == PARSEOP_NAMESEG)      ||
           (Next->Asl.ParseOpcode == PARSEOP_NAMESTRING)   ||
           (Next->Asl.ParseOpcode == PARSEOP_METHODCALL))
       {
           if (!strcmp (Op->Asl.ExternalName, Next->Asl.ExternalName))
           {
               return (AE_ALREADY_EXISTS);
           }
       }
   
       return (AE_OK);
   }
   
   
   /*
    * Part 2 of the cross reference file. This part emits the names of each
    * non-predefined method in the namespace (user methods), along with the
    * names of each control method that references that method.
    */
   
   /*******************************************************************************
    *
    * FUNCTION:    OtXrefWalkPart2
    *
    * PARAMETERS:  ASL_WALK_CALLBACK
    *
    * RETURN:      Status
    *
    * DESCRIPTION: For each control method in the namespace, we will re-walk the
    *              namespace to find each and every invocation of that control
    *              method. Brute force, but does not matter, even for large
    *              namespaces. Ignore predefined names (start with underscore).
    *
    ******************************************************************************/
   
   static ACPI_STATUS
   OtXrefWalkPart2 (
       ACPI_PARSE_OBJECT       *Op,
       UINT32                  Level,
       void                    *Context)
   {
       ASL_XREF_INFO           *XrefInfo = (ASL_XREF_INFO *) Context;
       ACPI_NAMESPACE_NODE     *Node;
       char                    *ParentPath;
   
   
       /* Looking for Method Declaration Ops only */
   
       if (!Op->Asl.Node ||
           (Op->Asl.ParseOpcode != PARSEOP_METHOD))
       {
           return (AE_OK);
       }
   
       /* Ignore predefined names */
   
       if (Op->Asl.Node->Name.Ascii[0] == '_')
       {
           XrefInfo->TotalPredefinedMethods++;
           return (AE_OK);
       }
   
       Node = Op->Asl.Node;
       ParentPath = AcpiNsGetNormalizedPathname (Node, TRUE);
   
       FlPrintFile (ASL_FILE_XREF_OUTPUT,
           "\n[%5u]  %-40s %s Declaration (%u args)\n",
           Op->Asl.LogicalLineNumber, ParentPath,
           AcpiUtGetTypeName (Node->Type), Node->ArgCount);
   
       XrefInfo->TotalUserMethods++;
       XrefInfo->ThisMethodInvocations = 0;
       XrefInfo->MethodOp = Op;
   
       (void) TrWalkParseTree (AslGbl_ParseTreeRoot, ASL_WALK_VISIT_DOWNWARD,
           OtXrefAnalysisWalkPart2, NULL, XrefInfo);
   
       if (!XrefInfo->ThisMethodInvocations)
       {
           FlPrintFile (ASL_FILE_XREF_OUTPUT,
               "            Zero invocations of this method in this module\n");
           XrefInfo->TotalUnreferenceUserMethods++;
       }
       else
       {
           FlPrintFile (ASL_FILE_XREF_OUTPUT,
               "            %u invocations of method %s in this module\n",
               XrefInfo->ThisMethodInvocations, ParentPath);
       }
   
       ACPI_FREE (ParentPath);
       return (AE_OK);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    OtXrefAnalysisWalkPart2
    *
    * PARAMETERS:  ASL_WALK_CALLBACK
    *
    * RETURN:      Status
    *
    * DESCRIPTION: For every Op that is a method invocation, emit a reference
    *              line if the Op is invoking the target method.
    *
    ******************************************************************************/
   
   static ACPI_STATUS
   OtXrefAnalysisWalkPart2 (
       ACPI_PARSE_OBJECT       *Op,
       UINT32                  Level,
       void                    *Context)
   {
       ASL_XREF_INFO           *XrefInfo = (ASL_XREF_INFO *) Context;
       ACPI_PARSE_OBJECT       *CallerOp;
       char                    *CallerFullPathname;
   
   
       /* Looking for MethodCall Ops only */
   
       if (!Op->Asl.Node ||
           (Op->Asl.ParseOpcode != PARSEOP_METHODCALL))
       {
           return (AE_OK);
       }
   
       /* If not a match to the target method, we are done */
   
       if (Op->Asl.Node != XrefInfo->MethodOp->Asl.Node)
       {
           return (AE_CTRL_DEPTH);
       }
   
       /* Find parent method to get method caller namepath */
   
       CallerOp = Op->Asl.Parent;
       while (CallerOp &&
           (CallerOp->Asl.ParseOpcode != PARSEOP_METHOD))
       {
           CallerOp = CallerOp->Asl.Parent;
       }
   
       /* There is no parent method for External() statements */
   
       if (!CallerOp)
       {
           return (AE_OK);
       }
   
       CallerFullPathname = AcpiNsGetNormalizedPathname (
           CallerOp->Asl.Node, TRUE);
   
       FlPrintFile (ASL_FILE_XREF_OUTPUT,
           "[%5u]     %-40s Invocation path: %s\n",
           Op->Asl.LogicalLineNumber, CallerFullPathname,
           Op->Asl.ExternalName);
   
       ACPI_FREE (CallerFullPathname);
       XrefInfo->ThisMethodInvocations++;
       return (AE_OK);
   }
   
   
   /*
    * Part 3 of the cross reference file. This part emits the names of each
    * non-predefined method in the namespace (user methods), along with the
    * names of each control method that references that method.
    */
   
   /*******************************************************************************
    *
    * FUNCTION:    OtXrefWalkPart3
    *
    * PARAMETERS:  ASL_WALK_CALLBACK
    *
    * RETURN:      Status
    *
    * DESCRIPTION: Cross-reference part 3. references to objects other than
    *              control methods.
    *
    ******************************************************************************/
   
   static ACPI_STATUS
   OtXrefWalkPart3 (
       ACPI_PARSE_OBJECT       *Op,
       UINT32                  Level,
       void                    *Context)
   {
       ASL_XREF_INFO           *XrefInfo = (ASL_XREF_INFO *) Context;
       ACPI_NAMESPACE_NODE     *Node;
       char                    *ParentPath;
       const ACPI_OPCODE_INFO  *OpInfo;
   
   
       /* Ignore method declarations */
   
       if (!Op->Asl.Node ||
           (Op->Asl.ParseOpcode == PARSEOP_METHOD))
       {
           return (AE_OK);
       }
   
       OpInfo = AcpiPsGetOpcodeInfo (Op->Asl.AmlOpcode);
       if (!(OpInfo->Class & AML_CLASS_NAMED_OBJECT))
       {
           return (AE_OK);
       }
   
       /* Only care about named object creation opcodes */
   
       if ((Op->Asl.ParseOpcode != PARSEOP_NAME) &&
           (Op->Asl.ParseOpcode != PARSEOP_DEVICE) &&
           (Op->Asl.ParseOpcode != PARSEOP_MUTEX) &&
           (Op->Asl.ParseOpcode != PARSEOP_OPERATIONREGION) &&
           (Op->Asl.ParseOpcode != PARSEOP_FIELD) &&
           (Op->Asl.ParseOpcode != PARSEOP_EVENT))
       {
           return (AE_OK);
       }
   
       /* Ignore predefined names */
   
       if (Op->Asl.Node->Name.Ascii[0] == '_')
       {
           return (AE_OK);
       }
   
       Node = Op->Asl.Node;
       ParentPath = AcpiNsGetNormalizedPathname (Node, TRUE);
   
       FlPrintFile (ASL_FILE_XREF_OUTPUT,
           "\n[%5u]  %-40s %s Declaration\n",
           Op->Asl.LogicalLineNumber, ParentPath,
           AcpiUtGetTypeName (Node->Type));
       ACPI_FREE (ParentPath);
   
       XrefInfo->MethodOp = Op;
       XrefInfo->ThisObjectReferences = 0;
       XrefInfo->TotalObjects = 0;
   
       (void) TrWalkParseTree (AslGbl_ParseTreeRoot, ASL_WALK_VISIT_DOWNWARD,
           OtXrefAnalysisWalkPart3, NULL, XrefInfo);
   
       if (!XrefInfo->ThisObjectReferences)
       {
           FlPrintFile (ASL_FILE_XREF_OUTPUT,
               "            Zero references to this object in this module\n");
           XrefInfo->TotalUnreferencedObjects++;
       }
       else
       {
           FlPrintFile (ASL_FILE_XREF_OUTPUT,
               "            %u references to this object in this module [%s]\n",
               XrefInfo->ThisObjectReferences, ParentPath);
       }
   
       return (AE_OK);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    OtXrefAnalysisWalkPart3
    *
    * PARAMETERS:  ASL_WALK_CALLBACK
    *
    * RETURN:      Status
    *
    * DESCRIPTION: Secondary walk for cross-reference part 3.
    *
    ******************************************************************************/
   
   static ACPI_STATUS
   OtXrefAnalysisWalkPart3 (
       ACPI_PARSE_OBJECT       *Op,
       UINT32                  Level,
       void                    *Context)
   {
       ASL_XREF_INFO           *XrefInfo = (ASL_XREF_INFO *) Context;
       char                    *CallerFullPathname = NULL;
       ACPI_PARSE_OBJECT       *CallerOp;
       const char              *Operator;
   
   
       if (!Op->Asl.Node)
       {
           return (AE_OK);
       }
   
       XrefInfo->TotalObjects++;
   
       /* Ignore Op that actually defined the object */
   
       if (Op == XrefInfo->MethodOp)
       {
           return (AE_OK);
       }
   
       /* Only interested in Ops that reference the target node */
   
       if (Op->Asl.Node != XrefInfo->MethodOp->Asl.Node)
       {
           return (AE_OK);
       }
   
       /* Find parent "open scope" object to get method caller namepath */
   
       CallerOp = Op->Asl.Parent;
       while (CallerOp &&
           (CallerOp->Asl.ParseOpcode != PARSEOP_NAME) &&
           (CallerOp->Asl.ParseOpcode != PARSEOP_METHOD) &&
           (CallerOp->Asl.ParseOpcode != PARSEOP_DEVICE) &&
           (CallerOp->Asl.ParseOpcode != PARSEOP_POWERRESOURCE) &&
           (CallerOp->Asl.ParseOpcode != PARSEOP_PROCESSOR) &&
           (CallerOp->Asl.ParseOpcode != PARSEOP_THERMALZONE))
       {
           CallerOp = CallerOp->Asl.Parent;
       }
   
       if (CallerOp == XrefInfo->CurrentMethodOp)
       {
           return (AE_OK);
       }
   
       /* Null CallerOp means the caller is at the namespace root */
   
       if (CallerOp)
       {
           CallerFullPathname = AcpiNsGetNormalizedPathname (
               CallerOp->Asl.Node, TRUE);
       }
   
       /* There are some special cases for the oddball operators */
   
       if (Op->Asl.ParseOpcode == PARSEOP_SCOPE)
       {
           Operator = "Scope";
       }
       else if (Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_ALIAS)
       {
           Operator = "Alias";
       }
       else if (!CallerOp)
       {
           Operator = "ModLevel";
       }
       else
       {
           Operator = AcpiUtGetTypeName (CallerOp->Asl.Node->Type);
       }
   
       FlPrintFile (ASL_FILE_XREF_OUTPUT,
           "[%5u]     %-40s %-8s via path: %s, Operator: %s\n",
           Op->Asl.LogicalLineNumber,
           CallerFullPathname ? CallerFullPathname : "<root>",
           Operator,
           Op->Asl.ExternalName,
           Op->Asl.Parent->Asl.ParseOpName);
   
       if (!CallerOp)
       {
           CallerOp = ACPI_TO_POINTER (0xFFFFFFFF);
       }
   
       if (CallerFullPathname)
       {
           ACPI_FREE (CallerFullPathname);
       }
   
       XrefInfo->CurrentMethodOp = CallerOp;
       XrefInfo->ThisObjectReferences++;
       return (AE_OK);
   }

Cache object: e92a301043b355103a4b2652daa28b8c