| /****************************************************************************** |
| * |
| * Module Name: adwalk - Application-level disassembler parse tree walk routines |
| * |
| *****************************************************************************/ |
| |
| /* |
| * 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 "acparser.h" |
| #include "amlcode.h" |
| #include "acdisasm.h" |
| #include "acdispat.h" |
| #include "acnamesp.h" |
| #include "acapps.h" |
| |
| |
| #define _COMPONENT ACPI_TOOLS |
| ACPI_MODULE_NAME ("adwalk") |
| |
| /* |
| * aslmap - opcode mappings and reserved method names |
| */ |
| ACPI_OBJECT_TYPE |
| AslMapNamedOpcodeToDataType ( |
| UINT16 Opcode); |
| |
| /* Local prototypes */ |
| |
| static ACPI_STATUS |
| AcpiDmFindOrphanDescending ( |
| ACPI_PARSE_OBJECT *Op, |
| UINT32 Level, |
| void *Context); |
| |
| static ACPI_STATUS |
| AcpiDmDumpDescending ( |
| ACPI_PARSE_OBJECT *Op, |
| UINT32 Level, |
| void *Context); |
| |
| static ACPI_STATUS |
| AcpiDmXrefDescendingOp ( |
| ACPI_PARSE_OBJECT *Op, |
| UINT32 Level, |
| void *Context); |
| |
| static ACPI_STATUS |
| AcpiDmCommonAscendingOp ( |
| ACPI_PARSE_OBJECT *Op, |
| UINT32 Level, |
| void *Context); |
| |
| static ACPI_STATUS |
| AcpiDmLoadDescendingOp ( |
| ACPI_PARSE_OBJECT *Op, |
| UINT32 Level, |
| void *Context); |
| |
| static UINT32 |
| AcpiDmInspectPossibleArgs ( |
| UINT32 CurrentOpArgCount, |
| UINT32 TargetCount, |
| ACPI_PARSE_OBJECT *Op); |
| |
| static ACPI_STATUS |
| AcpiDmResourceDescendingOp ( |
| ACPI_PARSE_OBJECT *Op, |
| UINT32 Level, |
| void *Context); |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmDumpTree |
| * |
| * PARAMETERS: Origin - Starting object |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Parse tree walk to format and output the nodes |
| * |
| ******************************************************************************/ |
| |
| void |
| AcpiDmDumpTree ( |
| ACPI_PARSE_OBJECT *Origin) |
| { |
| ACPI_OP_WALK_INFO Info; |
| |
| |
| if (!Origin) |
| { |
| return; |
| } |
| |
| AcpiOsPrintf ("/*\nAML Parse Tree\n\n"); |
| Info.Flags = 0; |
| Info.Count = 0; |
| Info.Level = 0; |
| Info.WalkState = NULL; |
| |
| AcpiDmWalkParseTree (Origin, AcpiDmDumpDescending, NULL, &Info); |
| AcpiOsPrintf ("*/\n\n"); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmFindOrphanMethods |
| * |
| * PARAMETERS: Origin - Starting object |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Parse tree walk to find "orphaned" method invocations -- methods |
| * that are not resolved in the namespace |
| * |
| ******************************************************************************/ |
| |
| void |
| AcpiDmFindOrphanMethods ( |
| ACPI_PARSE_OBJECT *Origin) |
| { |
| ACPI_OP_WALK_INFO Info; |
| |
| |
| if (!Origin) |
| { |
| return; |
| } |
| |
| Info.Flags = 0; |
| Info.Level = 0; |
| Info.WalkState = NULL; |
| |
| AcpiDmWalkParseTree (Origin, AcpiDmFindOrphanDescending, NULL, &Info); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmFinishNamespaceLoad |
| * |
| * PARAMETERS: ParseTreeRoot - Root of the parse tree |
| * NamespaceRoot - Root of the internal namespace |
| * OwnerId - OwnerId of the table to be disassembled |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Load all namespace items that are created within control |
| * methods. Used before namespace cross reference |
| * |
| ******************************************************************************/ |
| |
| void |
| AcpiDmFinishNamespaceLoad ( |
| ACPI_PARSE_OBJECT *ParseTreeRoot, |
| ACPI_NAMESPACE_NODE *NamespaceRoot, |
| ACPI_OWNER_ID OwnerId) |
| { |
| ACPI_STATUS Status; |
| ACPI_OP_WALK_INFO Info; |
| ACPI_WALK_STATE *WalkState; |
| |
| |
| if (!ParseTreeRoot) |
| { |
| return; |
| } |
| |
| /* Create and initialize a new walk state */ |
| |
| WalkState = AcpiDsCreateWalkState (OwnerId, ParseTreeRoot, NULL, NULL); |
| if (!WalkState) |
| { |
| return; |
| } |
| |
| Status = AcpiDsScopeStackPush (NamespaceRoot, NamespaceRoot->Type, |
| WalkState); |
| if (ACPI_FAILURE (Status)) |
| { |
| return; |
| } |
| |
| Info.Flags = 0; |
| Info.Level = 0; |
| Info.WalkState = WalkState; |
| |
| AcpiDmWalkParseTree (ParseTreeRoot, AcpiDmLoadDescendingOp, |
| AcpiDmCommonAscendingOp, &Info); |
| ACPI_FREE (WalkState); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmCrossReferenceNamespace |
| * |
| * PARAMETERS: ParseTreeRoot - Root of the parse tree |
| * NamespaceRoot - Root of the internal namespace |
| * OwnerId - OwnerId of the table to be disassembled |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Cross reference the namespace to create externals |
| * |
| ******************************************************************************/ |
| |
| void |
| AcpiDmCrossReferenceNamespace ( |
| ACPI_PARSE_OBJECT *ParseTreeRoot, |
| ACPI_NAMESPACE_NODE *NamespaceRoot, |
| ACPI_OWNER_ID OwnerId) |
| { |
| ACPI_STATUS Status; |
| ACPI_OP_WALK_INFO Info; |
| ACPI_WALK_STATE *WalkState; |
| |
| |
| if (!ParseTreeRoot) |
| { |
| return; |
| } |
| |
| /* Create and initialize a new walk state */ |
| |
| WalkState = AcpiDsCreateWalkState (OwnerId, ParseTreeRoot, NULL, NULL); |
| if (!WalkState) |
| { |
| return; |
| } |
| |
| Status = AcpiDsScopeStackPush (NamespaceRoot, NamespaceRoot->Type, |
| WalkState); |
| if (ACPI_FAILURE (Status)) |
| { |
| return; |
| } |
| |
| Info.Flags = 0; |
| Info.Level = 0; |
| Info.WalkState = WalkState; |
| |
| AcpiDmWalkParseTree (ParseTreeRoot, AcpiDmXrefDescendingOp, |
| AcpiDmCommonAscendingOp, &Info); |
| ACPI_FREE (WalkState); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmConvertResourceIndexes |
| * |
| * PARAMETERS: ParseTreeRoot - Root of the parse tree |
| * NamespaceRoot - Root of the internal namespace |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Convert fixed-offset references to resource descriptors to |
| * symbolic references. Should only be called after namespace has |
| * been cross referenced. |
| * |
| ******************************************************************************/ |
| |
| void |
| AcpiDmConvertResourceIndexes ( |
| ACPI_PARSE_OBJECT *ParseTreeRoot, |
| ACPI_NAMESPACE_NODE *NamespaceRoot) |
| { |
| ACPI_STATUS Status; |
| ACPI_OP_WALK_INFO Info; |
| ACPI_WALK_STATE *WalkState; |
| |
| |
| if (!ParseTreeRoot) |
| { |
| return; |
| } |
| |
| /* Create and initialize a new walk state */ |
| |
| WalkState = AcpiDsCreateWalkState (0, ParseTreeRoot, NULL, NULL); |
| if (!WalkState) |
| { |
| return; |
| } |
| |
| Status = AcpiDsScopeStackPush (NamespaceRoot, NamespaceRoot->Type, |
| WalkState); |
| if (ACPI_FAILURE (Status)) |
| { |
| return; |
| } |
| |
| Info.Flags = 0; |
| Info.Level = 0; |
| Info.WalkState = WalkState; |
| |
| AcpiDmWalkParseTree (ParseTreeRoot, AcpiDmResourceDescendingOp, |
| AcpiDmCommonAscendingOp, &Info); |
| ACPI_FREE (WalkState); |
| return; |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmDumpDescending |
| * |
| * PARAMETERS: ASL_WALK_CALLBACK |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: Format and print contents of one parse Op. |
| * |
| ******************************************************************************/ |
| |
| static ACPI_STATUS |
| AcpiDmDumpDescending ( |
| ACPI_PARSE_OBJECT *Op, |
| UINT32 Level, |
| void *Context) |
| { |
| ACPI_OP_WALK_INFO *Info = Context; |
| char *Path; |
| |
| |
| if (!Op) |
| { |
| return (AE_OK); |
| } |
| |
| /* Most of the information (count, level, name) here */ |
| |
| Info->Count++; |
| AcpiOsPrintf ("% 5d [%2.2d] ", Info->Count, Level); |
| AcpiDmIndent (Level); |
| AcpiOsPrintf ("%-28s", AcpiPsGetOpcodeName (Op->Common.AmlOpcode)); |
| |
| /* Extra info is helpful */ |
| |
| switch (Op->Common.AmlOpcode) |
| { |
| case AML_BYTE_OP: |
| |
| AcpiOsPrintf ("%2.2X", (UINT32) Op->Common.Value.Integer); |
| break; |
| |
| case AML_WORD_OP: |
| |
| AcpiOsPrintf ("%4.4X", (UINT32) Op->Common.Value.Integer); |
| break; |
| |
| case AML_DWORD_OP: |
| |
| AcpiOsPrintf ("%8.8X", (UINT32) Op->Common.Value.Integer); |
| break; |
| |
| case AML_QWORD_OP: |
| |
| AcpiOsPrintf ("%8.8X%8.8X", ACPI_FORMAT_UINT64 (Op->Common.Value.Integer)); |
| break; |
| |
| case AML_INT_NAMEPATH_OP: |
| |
| if (Op->Common.Value.String) |
| { |
| AcpiNsExternalizeName (ACPI_UINT32_MAX, Op->Common.Value.String, |
| NULL, &Path); |
| AcpiOsPrintf ("%s %p", Path, Op->Common.Node); |
| ACPI_FREE (Path); |
| } |
| else |
| { |
| AcpiOsPrintf ("[NULL]"); |
| } |
| break; |
| |
| case AML_NAME_OP: |
| case AML_METHOD_OP: |
| case AML_DEVICE_OP: |
| case AML_INT_NAMEDFIELD_OP: |
| |
| AcpiOsPrintf ("%4.4s", ACPI_CAST_PTR (char, &Op->Named.Name)); |
| break; |
| |
| default: |
| |
| break; |
| } |
| |
| AcpiOsPrintf ("\n"); |
| return (AE_OK); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmFindOrphanDescending |
| * |
| * PARAMETERS: ASL_WALK_CALLBACK |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: Check namepath Ops for orphaned method invocations |
| * |
| * Note: Experimental. |
| * |
| ******************************************************************************/ |
| |
| static ACPI_STATUS |
| AcpiDmFindOrphanDescending ( |
| ACPI_PARSE_OBJECT *Op, |
| UINT32 Level, |
| void *Context) |
| { |
| const ACPI_OPCODE_INFO *OpInfo; |
| ACPI_PARSE_OBJECT *ChildOp; |
| ACPI_PARSE_OBJECT *NextOp; |
| ACPI_PARSE_OBJECT *ParentOp; |
| UINT32 ArgCount; |
| |
| |
| if (!Op) |
| { |
| return (AE_OK); |
| } |
| |
| OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); |
| |
| switch (Op->Common.AmlOpcode) |
| { |
| #ifdef ACPI_UNDER_DEVELOPMENT |
| case AML_ADD_OP: |
| |
| ChildOp = Op->Common.Value.Arg; |
| if ((ChildOp->Common.AmlOpcode == AML_INT_NAMEPATH_OP) && |
| !ChildOp->Common.Node) |
| { |
| AcpiNsExternalizeName (ACPI_UINT32_MAX, ChildOp->Common.Value.String, |
| NULL, &Path); |
| AcpiOsPrintf ("/* %-16s A-NAMEPATH: %s */\n", |
| Op->Common.AmlOpName, Path); |
| ACPI_FREE (Path); |
| |
| NextOp = Op->Common.Next; |
| if (!NextOp) |
| { |
| /* This NamePath has no args, assume it is an integer */ |
| |
| AcpiDmAddOpToExternalList (ChildOp, |
| ChildOp->Common.Value.String, ACPI_TYPE_INTEGER, 0, 0); |
| return (AE_OK); |
| } |
| |
| ArgCount = AcpiDmInspectPossibleArgs (3, 1, NextOp); |
| AcpiOsPrintf ("/* A-CHILDREN: %u Actual %u */\n", |
| ArgCount, AcpiDmCountChildren (Op)); |
| |
| if (ArgCount < 1) |
| { |
| /* One Arg means this is just a Store(Name,Target) */ |
| |
| AcpiDmAddOpToExternalList (ChildOp, |
| ChildOp->Common.Value.String, ACPI_TYPE_INTEGER, 0, 0); |
| return (AE_OK); |
| } |
| |
| AcpiDmAddOpToExternalList (ChildOp, |
| ChildOp->Common.Value.String, ACPI_TYPE_METHOD, ArgCount, 0); |
| } |
| break; |
| #endif |
| |
| case AML_STORE_OP: |
| |
| ChildOp = Op->Common.Value.Arg; |
| if ((ChildOp->Common.AmlOpcode == AML_INT_NAMEPATH_OP) && |
| !ChildOp->Common.Node) |
| { |
| NextOp = Op->Common.Next; |
| if (!NextOp) |
| { |
| /* This NamePath has no args, assume it is an integer */ |
| |
| AcpiDmAddOpToExternalList (ChildOp, |
| ChildOp->Common.Value.String, ACPI_TYPE_INTEGER, 0, 0); |
| return (AE_OK); |
| } |
| |
| ArgCount = AcpiDmInspectPossibleArgs (2, 1, NextOp); |
| if (ArgCount <= 1) |
| { |
| /* One Arg means this is just a Store(Name,Target) */ |
| |
| AcpiDmAddOpToExternalList (ChildOp, |
| ChildOp->Common.Value.String, ACPI_TYPE_INTEGER, 0, 0); |
| return (AE_OK); |
| } |
| |
| AcpiDmAddOpToExternalList (ChildOp, |
| ChildOp->Common.Value.String, ACPI_TYPE_METHOD, ArgCount, 0); |
| } |
| break; |
| |
| case AML_INT_NAMEPATH_OP: |
| |
| /* Must examine parent to see if this namepath is an argument */ |
| |
| ParentOp = Op->Common.Parent; |
| OpInfo = AcpiPsGetOpcodeInfo (ParentOp->Common.AmlOpcode); |
| |
| if ((OpInfo->Class != AML_CLASS_EXECUTE) && |
| (OpInfo->Class != AML_CLASS_CREATE) && |
| (OpInfo->ObjectType != ACPI_TYPE_LOCAL_ALIAS) && |
| (ParentOp->Common.AmlOpcode != AML_INT_METHODCALL_OP) && |
| !Op->Common.Node) |
| { |
| ArgCount = AcpiDmInspectPossibleArgs (0, 0, Op->Common.Next); |
| |
| /* |
| * Check if namepath is a predicate for if/while or lone parameter to |
| * a return. |
| */ |
| if (ArgCount == 0) |
| { |
| if (((ParentOp->Common.AmlOpcode == AML_IF_OP) || |
| (ParentOp->Common.AmlOpcode == AML_WHILE_OP) || |
| (ParentOp->Common.AmlOpcode == AML_RETURN_OP)) && |
| |
| /* And namepath is the first argument */ |
| (ParentOp->Common.Value.Arg == Op)) |
| { |
| AcpiDmAddOpToExternalList (Op, |
| Op->Common.Value.String, ACPI_TYPE_INTEGER, 0, 0); |
| break; |
| } |
| } |
| |
| /* |
| * This is a standalone namestring (not a parameter to another |
| * operator) - it *must* be a method invocation, nothing else is |
| * grammatically possible. |
| */ |
| AcpiDmAddOpToExternalList (Op, |
| Op->Common.Value.String, ACPI_TYPE_METHOD, ArgCount, 0); |
| } |
| break; |
| |
| default: |
| |
| break; |
| } |
| |
| return (AE_OK); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmLoadDescendingOp |
| * |
| * PARAMETERS: ASL_WALK_CALLBACK |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: Descending handler for namespace control method object load |
| * |
| ******************************************************************************/ |
| |
| static ACPI_STATUS |
| AcpiDmLoadDescendingOp ( |
| ACPI_PARSE_OBJECT *Op, |
| UINT32 Level, |
| void *Context) |
| { |
| ACPI_OP_WALK_INFO *Info = Context; |
| const ACPI_OPCODE_INFO *OpInfo; |
| ACPI_WALK_STATE *WalkState; |
| ACPI_OBJECT_TYPE ObjectType; |
| ACPI_STATUS Status; |
| char *Path = NULL; |
| ACPI_PARSE_OBJECT *NextOp; |
| ACPI_NAMESPACE_NODE *Node; |
| char FieldPath[5]; |
| BOOLEAN PreDefined = FALSE; |
| UINT8 PreDefineIndex = 0; |
| |
| |
| WalkState = Info->WalkState; |
| OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); |
| ObjectType = OpInfo->ObjectType; |
| ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode); |
| |
| /* Only interested in operators that create new names */ |
| |
| if (!(OpInfo->Flags & AML_NAMED) && |
| !(OpInfo->Flags & AML_CREATE)) |
| { |
| goto Exit; |
| } |
| |
| /* Get the NamePath from the appropriate place */ |
| |
| if (OpInfo->Flags & AML_NAMED) |
| { |
| /* For all named operators, get the new name */ |
| |
| Path = (char *) Op->Named.Path; |
| |
| if (!Path && Op->Common.AmlOpcode == AML_INT_NAMEDFIELD_OP) |
| { |
| *ACPI_CAST_PTR (UINT32, &FieldPath[0]) = Op->Named.Name; |
| FieldPath[4] = 0; |
| Path = FieldPath; |
| } |
| } |
| else if (OpInfo->Flags & AML_CREATE) |
| { |
| /* New name is the last child */ |
| |
| NextOp = Op->Common.Value.Arg; |
| |
| while (NextOp->Common.Next) |
| { |
| NextOp = NextOp->Common.Next; |
| } |
| |
| Path = NextOp->Common.Value.String; |
| } |
| |
| if (!Path) |
| { |
| goto Exit; |
| } |
| |
| /* Insert the name into the namespace */ |
| |
| Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType, |
| ACPI_IMODE_LOAD_PASS2, ACPI_NS_DONT_OPEN_SCOPE, |
| WalkState, &Node); |
| |
| Op->Common.Node = Node; |
| |
| if (ACPI_SUCCESS (Status)) |
| { |
| /* Check if it's a predefined node */ |
| |
| while (AcpiGbl_PreDefinedNames[PreDefineIndex].Name) |
| { |
| if (ACPI_COMPARE_NAME (Node->Name.Ascii, |
| AcpiGbl_PreDefinedNames[PreDefineIndex].Name)) |
| { |
| PreDefined = TRUE; |
| break; |
| } |
| |
| PreDefineIndex++; |
| } |
| |
| /* |
| * Set node owner id if it satisfies all the following conditions: |
| * 1) Not a predefined node, _SB_ etc |
| * 2) Not the root node |
| * 3) Not a node created by Scope |
| */ |
| |
| if (!PreDefined && Node != AcpiGbl_RootNode && |
| Op->Common.AmlOpcode != AML_SCOPE_OP) |
| { |
| Node->OwnerId = WalkState->OwnerId; |
| } |
| } |
| |
| |
| Exit: |
| |
| if (AcpiNsOpensScope (ObjectType)) |
| { |
| if (Op->Common.Node) |
| { |
| Status = AcpiDsScopeStackPush (Op->Common.Node, ObjectType, |
| WalkState); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (Status); |
| } |
| } |
| } |
| |
| return (AE_OK); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmXrefDescendingOp |
| * |
| * PARAMETERS: ASL_WALK_CALLBACK |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: Descending handler for namespace cross reference |
| * |
| ******************************************************************************/ |
| |
| static ACPI_STATUS |
| AcpiDmXrefDescendingOp ( |
| ACPI_PARSE_OBJECT *Op, |
| UINT32 Level, |
| void *Context) |
| { |
| ACPI_OP_WALK_INFO *Info = Context; |
| const ACPI_OPCODE_INFO *OpInfo; |
| ACPI_WALK_STATE *WalkState; |
| ACPI_OBJECT_TYPE ObjectType; |
| ACPI_OBJECT_TYPE ObjectType2; |
| ACPI_STATUS Status; |
| char *Path = NULL; |
| ACPI_PARSE_OBJECT *NextOp; |
| ACPI_NAMESPACE_NODE *Node; |
| ACPI_OPERAND_OBJECT *Object; |
| UINT32 ParamCount = 0; |
| char *Pathname; |
| |
| |
| WalkState = Info->WalkState; |
| OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); |
| ObjectType = OpInfo->ObjectType; |
| ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode); |
| |
| if ((!(OpInfo->Flags & AML_NAMED)) && |
| (!(OpInfo->Flags & AML_CREATE)) && |
| (Op->Common.AmlOpcode != AML_INT_NAMEPATH_OP) && |
| (Op->Common.AmlOpcode != AML_NOTIFY_OP)) |
| { |
| goto Exit; |
| } |
| |
| |
| /* Get the NamePath from the appropriate place */ |
| |
| if (OpInfo->Flags & AML_NAMED) |
| { |
| /* |
| * Only these two operators (Alias, Scope) refer to an existing |
| * name, it is the first argument |
| */ |
| if (Op->Common.AmlOpcode == AML_ALIAS_OP) |
| { |
| ObjectType = ACPI_TYPE_ANY; |
| |
| NextOp = Op->Common.Value.Arg; |
| NextOp = NextOp->Common.Value.Arg; |
| if (NextOp->Common.AmlOpcode == AML_INT_NAMEPATH_OP) |
| { |
| Path = NextOp->Common.Value.String; |
| } |
| } |
| else if (Op->Common.AmlOpcode == AML_SCOPE_OP) |
| { |
| Path = (char *) Op->Named.Path; |
| } |
| } |
| else if (OpInfo->Flags & AML_CREATE) |
| { |
| /* Referenced Buffer Name is the first child */ |
| |
| ObjectType = ACPI_TYPE_BUFFER; /* Change from TYPE_BUFFER_FIELD */ |
| |
| NextOp = Op->Common.Value.Arg; |
| if (NextOp->Common.AmlOpcode == AML_INT_NAMEPATH_OP) |
| { |
| Path = NextOp->Common.Value.String; |
| } |
| } |
| else if (Op->Common.AmlOpcode == AML_NOTIFY_OP) |
| { |
| Path = Op->Common.Value.Arg->Asl.Value.String; |
| } |
| else |
| { |
| Path = Op->Common.Value.String; |
| } |
| |
| if (!Path) |
| { |
| goto Exit; |
| } |
| |
| /* |
| * Lookup the name in the namespace. Name must exist at this point, or it |
| * is an invalid reference. |
| * |
| * The namespace is also used as a lookup table for references to resource |
| * descriptors and the fields within them. |
| */ |
| Node = NULL; |
| Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ACPI_TYPE_ANY, |
| ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, |
| WalkState, &Node); |
| if (ACPI_SUCCESS (Status) && (Node->Flags & ANOBJ_IS_EXTERNAL)) |
| { |
| /* Node was created by an External() statement */ |
| |
| Status = AE_NOT_FOUND; |
| } |
| |
| if (ACPI_FAILURE (Status)) |
| { |
| if (Status == AE_NOT_FOUND) |
| { |
| /* |
| * Add this symbol as an external declaration, except if the |
| * parent is a CondRefOf operator. For this operator, we do not |
| * need an external, nor do we want one, since this can cause |
| * disassembly problems if the symbol is actually a control |
| * method. |
| */ |
| if (!(Op->Asl.Parent && |
| (Op->Asl.Parent->Asl.AmlOpcode == AML_COND_REF_OF_OP))) |
| { |
| if (Node) |
| { |
| AcpiDmAddNodeToExternalList (Node, |
| (UINT8) ObjectType, 0, 0); |
| } |
| else |
| { |
| AcpiDmAddOpToExternalList (Op, Path, |
| (UINT8) ObjectType, 0, 0); |
| } |
| } |
| } |
| } |
| |
| /* |
| * Found the node, but check if it came from an external table. |
| * Add it to external list. Note: Node->OwnerId == 0 indicates |
| * one of the built-in ACPI Names (_OS_ etc.) which can safely |
| * be ignored. |
| */ |
| else if (Node->OwnerId && |
| (WalkState->OwnerId != Node->OwnerId)) |
| { |
| ObjectType2 = ObjectType; |
| |
| Object = AcpiNsGetAttachedObject (Node); |
| if (Object) |
| { |
| ObjectType2 = Object->Common.Type; |
| if (ObjectType2 == ACPI_TYPE_METHOD) |
| { |
| ParamCount = Object->Method.ParamCount; |
| } |
| } |
| |
| Pathname = AcpiNsGetExternalPathname (Node); |
| if (!Pathname) |
| { |
| return (AE_NO_MEMORY); |
| } |
| |
| AcpiDmAddNodeToExternalList (Node, (UINT8) ObjectType2, |
| ParamCount, ACPI_EXT_RESOLVED_REFERENCE); |
| |
| ACPI_FREE (Pathname); |
| Op->Common.Node = Node; |
| } |
| else |
| { |
| Op->Common.Node = Node; |
| } |
| |
| |
| Exit: |
| /* Open new scope if necessary */ |
| |
| if (AcpiNsOpensScope (ObjectType)) |
| { |
| if (Op->Common.Node) |
| { |
| Status = AcpiDsScopeStackPush (Op->Common.Node, ObjectType, |
| WalkState); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (Status); |
| } |
| } |
| } |
| |
| return (AE_OK); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmResourceDescendingOp |
| * |
| * PARAMETERS: ASL_WALK_CALLBACK |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Process one parse op during symbolic resource index conversion. |
| * |
| ******************************************************************************/ |
| |
| static ACPI_STATUS |
| AcpiDmResourceDescendingOp ( |
| ACPI_PARSE_OBJECT *Op, |
| UINT32 Level, |
| void *Context) |
| { |
| ACPI_OP_WALK_INFO *Info = Context; |
| const ACPI_OPCODE_INFO *OpInfo; |
| ACPI_WALK_STATE *WalkState; |
| ACPI_OBJECT_TYPE ObjectType; |
| ACPI_STATUS Status; |
| |
| |
| WalkState = Info->WalkState; |
| OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); |
| |
| /* Open new scope if necessary */ |
| |
| ObjectType = OpInfo->ObjectType; |
| if (AcpiNsOpensScope (ObjectType)) |
| { |
| if (Op->Common.Node) |
| { |
| |
| Status = AcpiDsScopeStackPush (Op->Common.Node, ObjectType, |
| WalkState); |
| if (ACPI_FAILURE (Status)) |
| { |
| return (Status); |
| } |
| } |
| } |
| |
| /* |
| * Check if this operator contains a reference to a resource descriptor. |
| * If so, convert the reference into a symbolic reference. |
| */ |
| AcpiDmCheckResourceReference (Op, WalkState); |
| return (AE_OK); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmCommonAscendingOp |
| * |
| * PARAMETERS: ASL_WALK_CALLBACK |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Ascending handler for combined parse/namespace walks. Closes |
| * scope if necessary. |
| * |
| ******************************************************************************/ |
| |
| static ACPI_STATUS |
| AcpiDmCommonAscendingOp ( |
| ACPI_PARSE_OBJECT *Op, |
| UINT32 Level, |
| void *Context) |
| { |
| ACPI_OP_WALK_INFO *Info = Context; |
| const ACPI_OPCODE_INFO *OpInfo; |
| ACPI_OBJECT_TYPE ObjectType; |
| |
| |
| /* Close scope if necessary */ |
| |
| OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); |
| ObjectType = OpInfo->ObjectType; |
| ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode); |
| |
| if (AcpiNsOpensScope (ObjectType)) |
| { |
| (void) AcpiDsScopeStackPop (Info->WalkState); |
| } |
| |
| return (AE_OK); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiDmInspectPossibleArgs |
| * |
| * PARAMETERS: CurrentOpArgCount - Which arg of the current op was the |
| * possible method invocation found |
| * TargetCount - Number of targets (0,1,2) for this op |
| * Op - Parse op |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: Examine following args and next ops for possible arguments |
| * for an unrecognized method invocation. |
| * |
| ******************************************************************************/ |
| |
| static UINT32 |
| AcpiDmInspectPossibleArgs ( |
| UINT32 CurrentOpArgCount, |
| UINT32 TargetCount, |
| ACPI_PARSE_OBJECT *Op) |
| { |
| const ACPI_OPCODE_INFO *OpInfo; |
| UINT32 i; |
| UINT32 Last = 0; |
| UINT32 Lookahead; |
| |
| |
| Lookahead = (ACPI_METHOD_NUM_ARGS + TargetCount) - CurrentOpArgCount; |
| |
| /* Lookahead for the maximum number of possible arguments */ |
| |
| for (i = 0; i < Lookahead; i++) |
| { |
| if (!Op) |
| { |
| break; |
| } |
| |
| OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); |
| |
| /* |
| * Any one of these operators is "very probably" not a method arg |
| */ |
| if ((Op->Common.AmlOpcode == AML_STORE_OP) || |
| (Op->Common.AmlOpcode == AML_NOTIFY_OP)) |
| { |
| break; |
| } |
| |
| if ((OpInfo->Class != AML_CLASS_EXECUTE) && |
| (OpInfo->Class != AML_CLASS_CONTROL)) |
| { |
| Last = i+1; |
| } |
| |
| Op = Op->Common.Next; |
| } |
| |
| return (Last); |
| } |
