/****************************************************************************** * * Module Name: aslxrefout.c - support for optional cross-reference file * *****************************************************************************/ /****************************************************************************** * * 1. Copyright Notice * * Some or all of this work - Copyright (c) 1999 - 2020, 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 "aslcompiler.h" #include "aslcompiler.y.h" #include "acnamesp.h" #include "acparser.h" #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, " "); 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 : "", 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); }