1238 lines
32 KiB
C
1238 lines
32 KiB
C
/******************************************************************************
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*
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* Module Name: asltree - parse tree management
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2013, Intel Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#include "aslcompiler.h"
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#include "aslcompiler.y.h"
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#include "acapps.h"
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#include <time.h>
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#define _COMPONENT ACPI_COMPILER
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ACPI_MODULE_NAME ("asltree")
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/* Local prototypes */
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static ACPI_PARSE_OBJECT *
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TrGetNextNode (
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void);
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static char *
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TrGetNodeFlagName (
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UINT32 Flags);
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/*******************************************************************************
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*
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* FUNCTION: TrGetNextNode
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*
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* PARAMETERS: None
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*
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* RETURN: New parse node. Aborts on allocation failure
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*
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* DESCRIPTION: Allocate a new parse node for the parse tree. Bypass the local
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* dynamic memory manager for performance reasons (This has a
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* major impact on the speed of the compiler.)
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*
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******************************************************************************/
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static ACPI_PARSE_OBJECT *
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TrGetNextNode (
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void)
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{
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if (Gbl_NodeCacheNext >= Gbl_NodeCacheLast)
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{
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Gbl_NodeCacheNext = UtLocalCalloc (sizeof (ACPI_PARSE_OBJECT) *
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ASL_NODE_CACHE_SIZE);
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Gbl_NodeCacheLast = Gbl_NodeCacheNext + ASL_NODE_CACHE_SIZE;
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}
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return (Gbl_NodeCacheNext++);
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}
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/*******************************************************************************
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*
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* FUNCTION: TrAllocateNode
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*
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* PARAMETERS: ParseOpcode - Opcode to be assigned to the node
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*
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* RETURN: New parse node. Aborts on allocation failure
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*
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* DESCRIPTION: Allocate and initialize a new parse node for the parse tree
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*
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******************************************************************************/
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ACPI_PARSE_OBJECT *
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TrAllocateNode (
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UINT32 ParseOpcode)
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{
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ACPI_PARSE_OBJECT *Op;
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Op = TrGetNextNode ();
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Op->Asl.ParseOpcode = (UINT16) ParseOpcode;
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Op->Asl.Filename = Gbl_Files[ASL_FILE_INPUT].Filename;
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Op->Asl.LineNumber = Gbl_CurrentLineNumber;
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Op->Asl.LogicalLineNumber = Gbl_LogicalLineNumber;
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Op->Asl.LogicalByteOffset = Gbl_CurrentLineOffset;
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Op->Asl.Column = Gbl_CurrentColumn;
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UtSetParseOpName (Op);
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return (Op);
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}
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/*******************************************************************************
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*
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* FUNCTION: TrReleaseNode
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*
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* PARAMETERS: Op - Op to be released
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*
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* RETURN: None
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*
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* DESCRIPTION: "release" a node. In truth, nothing is done since the node
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* is part of a larger buffer
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*
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******************************************************************************/
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void
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TrReleaseNode (
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ACPI_PARSE_OBJECT *Op)
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{
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return;
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}
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/*******************************************************************************
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*
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* FUNCTION: TrUpdateNode
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*
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* PARAMETERS: ParseOpcode - New opcode to be assigned to the node
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* Op - An existing parse node
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*
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* RETURN: The updated node
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*
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* DESCRIPTION: Change the parse opcode assigned to a node. Usually used to
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* change an opcode to DEFAULT_ARG so that the node is ignored
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* during the code generation. Also used to set generic integers
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* to a specific size (8, 16, 32, or 64 bits)
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*
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******************************************************************************/
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ACPI_PARSE_OBJECT *
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TrUpdateNode (
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UINT32 ParseOpcode,
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ACPI_PARSE_OBJECT *Op)
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{
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if (!Op)
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{
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return (NULL);
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}
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DbgPrint (ASL_PARSE_OUTPUT,
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"\nUpdateNode: Old - %s, New - %s\n\n",
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UtGetOpName (Op->Asl.ParseOpcode),
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UtGetOpName (ParseOpcode));
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/* Assign new opcode and name */
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if (Op->Asl.ParseOpcode == PARSEOP_ONES)
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{
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switch (ParseOpcode)
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{
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case PARSEOP_BYTECONST:
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Op->Asl.Value.Integer = ACPI_UINT8_MAX;
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break;
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case PARSEOP_WORDCONST:
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Op->Asl.Value.Integer = ACPI_UINT16_MAX;
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break;
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case PARSEOP_DWORDCONST:
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Op->Asl.Value.Integer = ACPI_UINT32_MAX;
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break;
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/* Don't need to do the QWORD case */
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default:
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/* Don't care about others */
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break;
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}
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}
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Op->Asl.ParseOpcode = (UINT16) ParseOpcode;
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UtSetParseOpName (Op);
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/*
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* For the BYTE, WORD, and DWORD constants, make sure that the integer
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* that was passed in will actually fit into the data type
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*/
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switch (ParseOpcode)
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{
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case PARSEOP_BYTECONST:
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UtCheckIntegerRange (Op, 0x00, ACPI_UINT8_MAX);
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Op->Asl.Value.Integer &= ACPI_UINT8_MAX;
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break;
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case PARSEOP_WORDCONST:
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UtCheckIntegerRange (Op, 0x00, ACPI_UINT16_MAX);
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Op->Asl.Value.Integer &= ACPI_UINT16_MAX;
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break;
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case PARSEOP_DWORDCONST:
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UtCheckIntegerRange (Op, 0x00, ACPI_UINT32_MAX);
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Op->Asl.Value.Integer &= ACPI_UINT32_MAX;
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break;
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default:
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/* Don't care about others, don't need to check QWORD */
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break;
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}
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return (Op);
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}
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/*******************************************************************************
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*
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* FUNCTION: TrGetNodeFlagName
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*
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* PARAMETERS: Flags - Flags word to be decoded
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*
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* RETURN: Name string. Always returns a valid string pointer.
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*
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* DESCRIPTION: Decode a flags word
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*
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******************************************************************************/
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static char *
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TrGetNodeFlagName (
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UINT32 Flags)
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{
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switch (Flags)
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{
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case NODE_VISITED:
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return ("NODE_VISITED");
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case NODE_AML_PACKAGE:
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return ("NODE_AML_PACKAGE");
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case NODE_IS_TARGET:
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return ("NODE_IS_TARGET");
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case NODE_IS_RESOURCE_DESC:
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return ("NODE_IS_RESOURCE_DESC");
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case NODE_IS_RESOURCE_FIELD:
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return ("NODE_IS_RESOURCE_FIELD");
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case NODE_HAS_NO_EXIT:
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return ("NODE_HAS_NO_EXIT");
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case NODE_IF_HAS_NO_EXIT:
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return ("NODE_IF_HAS_NO_EXIT");
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case NODE_NAME_INTERNALIZED:
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return ("NODE_NAME_INTERNALIZED");
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case NODE_METHOD_NO_RETVAL:
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return ("NODE_METHOD_NO_RETVAL");
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case NODE_METHOD_SOME_NO_RETVAL:
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return ("NODE_METHOD_SOME_NO_RETVAL");
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case NODE_RESULT_NOT_USED:
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return ("NODE_RESULT_NOT_USED");
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case NODE_METHOD_TYPED:
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return ("NODE_METHOD_TYPED");
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case NODE_COMPILE_TIME_CONST:
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return ("NODE_COMPILE_TIME_CONST");
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case NODE_IS_TERM_ARG:
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return ("NODE_IS_TERM_ARG");
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case NODE_WAS_ONES_OP:
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return ("NODE_WAS_ONES_OP");
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case NODE_IS_NAME_DECLARATION:
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return ("NODE_IS_NAME_DECLARATION");
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default:
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return ("Multiple Flags (or unknown flag) set");
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: TrSetNodeFlags
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*
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* PARAMETERS: Op - An existing parse node
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* Flags - New flags word
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*
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* RETURN: The updated parser op
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*
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* DESCRIPTION: Set bits in the node flags word. Will not clear bits, only set
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*
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******************************************************************************/
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ACPI_PARSE_OBJECT *
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TrSetNodeFlags (
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ACPI_PARSE_OBJECT *Op,
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UINT32 Flags)
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{
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DbgPrint (ASL_PARSE_OUTPUT,
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"\nSetNodeFlags: Op %p, %8.8X %s\n\n", Op, Flags,
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TrGetNodeFlagName (Flags));
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if (!Op)
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{
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return (NULL);
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}
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Op->Asl.CompileFlags |= Flags;
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return (Op);
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}
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/*******************************************************************************
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*
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* FUNCTION: TrSetNodeAmlLength
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*
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* PARAMETERS: Op - An existing parse node
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* Length - AML Length
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*
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* RETURN: The updated parser op
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*
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* DESCRIPTION: Set the AML Length in a node. Used by the parser to indicate
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* the presence of a node that must be reduced to a fixed length
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* constant.
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*
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******************************************************************************/
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ACPI_PARSE_OBJECT *
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TrSetNodeAmlLength (
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ACPI_PARSE_OBJECT *Op,
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UINT32 Length)
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{
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DbgPrint (ASL_PARSE_OUTPUT,
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"\nSetNodeAmlLength: Op %p, %8.8X\n", Op, Length);
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|
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if (!Op)
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{
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return (NULL);
|
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}
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Op->Asl.AmlLength = Length;
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return (Op);
|
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}
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/*******************************************************************************
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*
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* FUNCTION: TrSetEndLineNumber
|
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*
|
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* PARAMETERS: Op - An existing parse node
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*
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* RETURN: None.
|
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*
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* DESCRIPTION: Set the ending line numbers (file line and logical line) of a
|
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* parse node to the current line numbers.
|
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*
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******************************************************************************/
|
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void
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TrSetEndLineNumber (
|
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ACPI_PARSE_OBJECT *Op)
|
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{
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|
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/* If the end line # is already set, just return */
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|
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if (Op->Asl.EndLine)
|
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{
|
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return;
|
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}
|
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Op->Asl.EndLine = Gbl_CurrentLineNumber;
|
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Op->Asl.EndLogicalLine = Gbl_LogicalLineNumber;
|
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}
|
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|
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/*******************************************************************************
|
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*
|
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* FUNCTION: TrCreateLeafNode
|
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*
|
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* PARAMETERS: ParseOpcode - New opcode to be assigned to the node
|
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*
|
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* RETURN: Pointer to the new node. Aborts on allocation failure
|
|
*
|
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* DESCRIPTION: Create a simple leaf node (no children or peers, and no value
|
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* assigned to the node)
|
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*
|
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******************************************************************************/
|
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|
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ACPI_PARSE_OBJECT *
|
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TrCreateLeafNode (
|
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UINT32 ParseOpcode)
|
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{
|
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ACPI_PARSE_OBJECT *Op;
|
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|
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Op = TrAllocateNode (ParseOpcode);
|
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|
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DbgPrint (ASL_PARSE_OUTPUT,
|
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"\nCreateLeafNode Ln/Col %u/%u NewNode %p Op %s\n\n",
|
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Op->Asl.LineNumber, Op->Asl.Column, Op, UtGetOpName(ParseOpcode));
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|
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return (Op);
|
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}
|
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|
|
|
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/*******************************************************************************
|
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*
|
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* FUNCTION: TrCreateConstantLeafNode
|
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*
|
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* PARAMETERS: ParseOpcode - The constant opcode
|
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*
|
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* RETURN: Pointer to the new node. Aborts on allocation failure
|
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*
|
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* DESCRIPTION: Create a leaf node (no children or peers) for one of the
|
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* special constants - __LINE__, __FILE__, and __DATE__.
|
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*
|
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* Note: An implemenation of __FUNC__ cannot happen here because we don't
|
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* have a full parse tree at this time and cannot find the parent control
|
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* method. If it is ever needed, __FUNC__ must be implemented later, after
|
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* the parse tree has been fully constructed.
|
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*
|
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******************************************************************************/
|
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|
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ACPI_PARSE_OBJECT *
|
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TrCreateConstantLeafNode (
|
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UINT32 ParseOpcode)
|
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{
|
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ACPI_PARSE_OBJECT *Op = NULL;
|
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time_t CurrentTime;
|
|
char *StaticTimeString;
|
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char *TimeString;
|
|
char *Path;
|
|
char *Filename;
|
|
|
|
|
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switch (ParseOpcode)
|
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{
|
|
case PARSEOP___LINE__:
|
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Op = TrAllocateNode (PARSEOP_INTEGER);
|
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Op->Asl.Value.Integer = Op->Asl.LineNumber;
|
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break;
|
|
|
|
case PARSEOP___PATH__:
|
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Op = TrAllocateNode (PARSEOP_STRING_LITERAL);
|
|
|
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/* Op.Asl.Filename contains the full pathname to the file */
|
|
|
|
Op->Asl.Value.String = Op->Asl.Filename;
|
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break;
|
|
|
|
case PARSEOP___FILE__:
|
|
Op = TrAllocateNode (PARSEOP_STRING_LITERAL);
|
|
|
|
/* Get the simple filename from the full path */
|
|
|
|
FlSplitInputPathname (Op->Asl.Filename, &Path, &Filename);
|
|
ACPI_FREE (Path);
|
|
Op->Asl.Value.String = Filename;
|
|
break;
|
|
|
|
case PARSEOP___DATE__:
|
|
Op = TrAllocateNode (PARSEOP_STRING_LITERAL);
|
|
|
|
/* Get a copy of the current time */
|
|
|
|
CurrentTime = time (NULL);
|
|
StaticTimeString = ctime (&CurrentTime);
|
|
TimeString = UtLocalCalloc (strlen (StaticTimeString) + 1);
|
|
strcpy (TimeString, StaticTimeString);
|
|
|
|
TimeString[strlen(TimeString) -1] = 0; /* Remove trailing newline */
|
|
Op->Asl.Value.String = TimeString;
|
|
break;
|
|
|
|
default: /* This would be an internal error */
|
|
return (NULL);
|
|
}
|
|
|
|
DbgPrint (ASL_PARSE_OUTPUT,
|
|
"\nCreateConstantLeafNode Ln/Col %u/%u NewNode %p Op %s Value %8.8X%8.8X ",
|
|
Op->Asl.LineNumber, Op->Asl.Column, Op, UtGetOpName (ParseOpcode),
|
|
ACPI_FORMAT_UINT64 (Op->Asl.Value.Integer));
|
|
return (Op);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: TrCreateValuedLeafNode
|
|
*
|
|
* PARAMETERS: ParseOpcode - New opcode to be assigned to the node
|
|
* Value - Value to be assigned to the node
|
|
*
|
|
* RETURN: Pointer to the new node. Aborts on allocation failure
|
|
*
|
|
* DESCRIPTION: Create a leaf node (no children or peers) with a value
|
|
* assigned to it
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_PARSE_OBJECT *
|
|
TrCreateValuedLeafNode (
|
|
UINT32 ParseOpcode,
|
|
UINT64 Value)
|
|
{
|
|
ACPI_PARSE_OBJECT *Op;
|
|
|
|
|
|
Op = TrAllocateNode (ParseOpcode);
|
|
|
|
DbgPrint (ASL_PARSE_OUTPUT,
|
|
"\nCreateValuedLeafNode Ln/Col %u/%u NewNode %p Op %s Value %8.8X%8.8X ",
|
|
Op->Asl.LineNumber, Op->Asl.Column, Op, UtGetOpName(ParseOpcode),
|
|
ACPI_FORMAT_UINT64 (Value));
|
|
Op->Asl.Value.Integer = Value;
|
|
|
|
switch (ParseOpcode)
|
|
{
|
|
case PARSEOP_STRING_LITERAL:
|
|
DbgPrint (ASL_PARSE_OUTPUT, "STRING->%s", Value);
|
|
break;
|
|
|
|
case PARSEOP_NAMESEG:
|
|
DbgPrint (ASL_PARSE_OUTPUT, "NAMESEG->%s", Value);
|
|
break;
|
|
|
|
case PARSEOP_NAMESTRING:
|
|
DbgPrint (ASL_PARSE_OUTPUT, "NAMESTRING->%s", Value);
|
|
break;
|
|
|
|
case PARSEOP_EISAID:
|
|
DbgPrint (ASL_PARSE_OUTPUT, "EISAID->%s", Value);
|
|
break;
|
|
|
|
case PARSEOP_METHOD:
|
|
DbgPrint (ASL_PARSE_OUTPUT, "METHOD");
|
|
break;
|
|
|
|
case PARSEOP_INTEGER:
|
|
DbgPrint (ASL_PARSE_OUTPUT, "INTEGER");
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
DbgPrint (ASL_PARSE_OUTPUT, "\n\n");
|
|
return (Op);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: TrCreateNode
|
|
*
|
|
* PARAMETERS: ParseOpcode - Opcode to be assigned to the node
|
|
* NumChildren - Number of children to follow
|
|
* ... - A list of child nodes to link to the new
|
|
* node. NumChildren long.
|
|
*
|
|
* RETURN: Pointer to the new node. Aborts on allocation failure
|
|
*
|
|
* DESCRIPTION: Create a new parse node and link together a list of child
|
|
* nodes underneath the new node.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_PARSE_OBJECT *
|
|
TrCreateNode (
|
|
UINT32 ParseOpcode,
|
|
UINT32 NumChildren,
|
|
...)
|
|
{
|
|
ACPI_PARSE_OBJECT *Op;
|
|
ACPI_PARSE_OBJECT *Child;
|
|
ACPI_PARSE_OBJECT *PrevChild;
|
|
va_list ap;
|
|
UINT32 i;
|
|
BOOLEAN FirstChild;
|
|
|
|
|
|
va_start (ap, NumChildren);
|
|
|
|
/* Allocate one new node */
|
|
|
|
Op = TrAllocateNode (ParseOpcode);
|
|
|
|
DbgPrint (ASL_PARSE_OUTPUT,
|
|
"\nCreateNode Ln/Col %u/%u NewParent %p Child %u Op %s ",
|
|
Op->Asl.LineNumber, Op->Asl.Column, Op, NumChildren, UtGetOpName(ParseOpcode));
|
|
|
|
/* Some extra debug output based on the parse opcode */
|
|
|
|
switch (ParseOpcode)
|
|
{
|
|
case PARSEOP_DEFINITIONBLOCK:
|
|
RootNode = Op;
|
|
DbgPrint (ASL_PARSE_OUTPUT, "DEFINITION_BLOCK (Tree Completed)->");
|
|
break;
|
|
|
|
case PARSEOP_OPERATIONREGION:
|
|
DbgPrint (ASL_PARSE_OUTPUT, "OPREGION->");
|
|
break;
|
|
|
|
case PARSEOP_OR:
|
|
DbgPrint (ASL_PARSE_OUTPUT, "OR->");
|
|
break;
|
|
|
|
default:
|
|
/* Nothing to do for other opcodes */
|
|
break;
|
|
}
|
|
|
|
/* Link the new node to its children */
|
|
|
|
PrevChild = NULL;
|
|
FirstChild = TRUE;
|
|
for (i = 0; i < NumChildren; i++)
|
|
{
|
|
/* Get the next child */
|
|
|
|
Child = va_arg (ap, ACPI_PARSE_OBJECT *);
|
|
DbgPrint (ASL_PARSE_OUTPUT, "%p, ", Child);
|
|
|
|
/*
|
|
* If child is NULL, this means that an optional argument
|
|
* was omitted. We must create a placeholder with a special
|
|
* opcode (DEFAULT_ARG) so that the code generator will know
|
|
* that it must emit the correct default for this argument
|
|
*/
|
|
if (!Child)
|
|
{
|
|
Child = TrAllocateNode (PARSEOP_DEFAULT_ARG);
|
|
}
|
|
|
|
/* Link first child to parent */
|
|
|
|
if (FirstChild)
|
|
{
|
|
FirstChild = FALSE;
|
|
Op->Asl.Child = Child;
|
|
}
|
|
|
|
/* Point all children to parent */
|
|
|
|
Child->Asl.Parent = Op;
|
|
|
|
/* Link children in a peer list */
|
|
|
|
if (PrevChild)
|
|
{
|
|
PrevChild->Asl.Next = Child;
|
|
};
|
|
|
|
/*
|
|
* This child might be a list, point all nodes in the list
|
|
* to the same parent
|
|
*/
|
|
while (Child->Asl.Next)
|
|
{
|
|
Child = Child->Asl.Next;
|
|
Child->Asl.Parent = Op;
|
|
}
|
|
|
|
PrevChild = Child;
|
|
}
|
|
va_end(ap);
|
|
|
|
DbgPrint (ASL_PARSE_OUTPUT, "\n\n");
|
|
return (Op);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: TrLinkChildren
|
|
*
|
|
* PARAMETERS: Op - An existing parse node
|
|
* NumChildren - Number of children to follow
|
|
* ... - A list of child nodes to link to the new
|
|
* node. NumChildren long.
|
|
*
|
|
* RETURN: The updated (linked) node
|
|
*
|
|
* DESCRIPTION: Link a group of nodes to an existing parse node
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_PARSE_OBJECT *
|
|
TrLinkChildren (
|
|
ACPI_PARSE_OBJECT *Op,
|
|
UINT32 NumChildren,
|
|
...)
|
|
{
|
|
ACPI_PARSE_OBJECT *Child;
|
|
ACPI_PARSE_OBJECT *PrevChild;
|
|
va_list ap;
|
|
UINT32 i;
|
|
BOOLEAN FirstChild;
|
|
|
|
|
|
va_start (ap, NumChildren);
|
|
|
|
|
|
TrSetEndLineNumber (Op);
|
|
|
|
DbgPrint (ASL_PARSE_OUTPUT,
|
|
"\nLinkChildren Line [%u to %u] NewParent %p Child %u Op %s ",
|
|
Op->Asl.LineNumber, Op->Asl.EndLine,
|
|
Op, NumChildren, UtGetOpName(Op->Asl.ParseOpcode));
|
|
|
|
switch (Op->Asl.ParseOpcode)
|
|
{
|
|
case PARSEOP_DEFINITIONBLOCK:
|
|
RootNode = Op;
|
|
DbgPrint (ASL_PARSE_OUTPUT, "DEFINITION_BLOCK (Tree Completed)->");
|
|
break;
|
|
|
|
case PARSEOP_OPERATIONREGION:
|
|
DbgPrint (ASL_PARSE_OUTPUT, "OPREGION->");
|
|
break;
|
|
|
|
case PARSEOP_OR:
|
|
DbgPrint (ASL_PARSE_OUTPUT, "OR->");
|
|
break;
|
|
|
|
default:
|
|
/* Nothing to do for other opcodes */
|
|
break;
|
|
}
|
|
|
|
/* Link the new node to it's children */
|
|
|
|
PrevChild = NULL;
|
|
FirstChild = TRUE;
|
|
for (i = 0; i < NumChildren; i++)
|
|
{
|
|
Child = va_arg (ap, ACPI_PARSE_OBJECT *);
|
|
|
|
if ((Child == PrevChild) && (Child != NULL))
|
|
{
|
|
AslError (ASL_WARNING, ASL_MSG_COMPILER_INTERNAL, Child,
|
|
"Child node list invalid");
|
|
return (Op);
|
|
}
|
|
|
|
DbgPrint (ASL_PARSE_OUTPUT, "%p, ", Child);
|
|
|
|
/*
|
|
* If child is NULL, this means that an optional argument
|
|
* was omitted. We must create a placeholder with a special
|
|
* opcode (DEFAULT_ARG) so that the code generator will know
|
|
* that it must emit the correct default for this argument
|
|
*/
|
|
if (!Child)
|
|
{
|
|
Child = TrAllocateNode (PARSEOP_DEFAULT_ARG);
|
|
}
|
|
|
|
/* Link first child to parent */
|
|
|
|
if (FirstChild)
|
|
{
|
|
FirstChild = FALSE;
|
|
Op->Asl.Child = Child;
|
|
}
|
|
|
|
/* Point all children to parent */
|
|
|
|
Child->Asl.Parent = Op;
|
|
|
|
/* Link children in a peer list */
|
|
|
|
if (PrevChild)
|
|
{
|
|
PrevChild->Asl.Next = Child;
|
|
};
|
|
|
|
/*
|
|
* This child might be a list, point all nodes in the list
|
|
* to the same parent
|
|
*/
|
|
while (Child->Asl.Next)
|
|
{
|
|
Child = Child->Asl.Next;
|
|
Child->Asl.Parent = Op;
|
|
}
|
|
PrevChild = Child;
|
|
}
|
|
va_end(ap);
|
|
|
|
DbgPrint (ASL_PARSE_OUTPUT, "\n\n");
|
|
return (Op);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: TrLinkPeerNode
|
|
*
|
|
* PARAMETERS: Op1 - First peer
|
|
* Op2 - Second peer
|
|
*
|
|
* RETURN: Op1 or the non-null node.
|
|
*
|
|
* DESCRIPTION: Link two nodes as peers. Handles cases where one peer is null.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_PARSE_OBJECT *
|
|
TrLinkPeerNode (
|
|
ACPI_PARSE_OBJECT *Op1,
|
|
ACPI_PARSE_OBJECT *Op2)
|
|
{
|
|
ACPI_PARSE_OBJECT *Next;
|
|
|
|
|
|
DbgPrint (ASL_PARSE_OUTPUT,
|
|
"\nLinkPeerNode: 1=%p (%s), 2=%p (%s)\n\n",
|
|
Op1, Op1 ? UtGetOpName(Op1->Asl.ParseOpcode) : NULL,
|
|
Op2, Op2 ? UtGetOpName(Op2->Asl.ParseOpcode) : NULL);
|
|
|
|
|
|
if ((!Op1) && (!Op2))
|
|
{
|
|
DbgPrint (ASL_PARSE_OUTPUT, "\nTwo Null nodes!\n");
|
|
return (Op1);
|
|
}
|
|
|
|
/* If one of the nodes is null, just return the non-null node */
|
|
|
|
if (!Op2)
|
|
{
|
|
return (Op1);
|
|
}
|
|
|
|
if (!Op1)
|
|
{
|
|
return (Op2);
|
|
}
|
|
|
|
if (Op1 == Op2)
|
|
{
|
|
DbgPrint (ASL_DEBUG_OUTPUT,
|
|
"\n\n************* Internal error, linking node to itself %p\n\n\n",
|
|
Op1);
|
|
AslError (ASL_WARNING, ASL_MSG_COMPILER_INTERNAL, Op1,
|
|
"Linking node to itself");
|
|
return (Op1);
|
|
}
|
|
|
|
Op1->Asl.Parent = Op2->Asl.Parent;
|
|
|
|
/*
|
|
* Op 1 may already have a peer list (such as an IF/ELSE pair),
|
|
* so we must walk to the end of the list and attach the new
|
|
* peer at the end
|
|
*/
|
|
Next = Op1;
|
|
while (Next->Asl.Next)
|
|
{
|
|
Next = Next->Asl.Next;
|
|
}
|
|
|
|
Next->Asl.Next = Op2;
|
|
return (Op1);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: TrLinkPeerNodes
|
|
*
|
|
* PARAMETERS: NumPeers - The number of nodes in the list to follow
|
|
* ... - A list of nodes to link together as peers
|
|
*
|
|
* RETURN: The first node in the list (head of the peer list)
|
|
*
|
|
* DESCRIPTION: Link together an arbitrary number of peer nodes.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_PARSE_OBJECT *
|
|
TrLinkPeerNodes (
|
|
UINT32 NumPeers,
|
|
...)
|
|
{
|
|
ACPI_PARSE_OBJECT *This;
|
|
ACPI_PARSE_OBJECT *Next;
|
|
va_list ap;
|
|
UINT32 i;
|
|
ACPI_PARSE_OBJECT *Start;
|
|
|
|
|
|
DbgPrint (ASL_PARSE_OUTPUT,
|
|
"\nLinkPeerNodes: (%u) ", NumPeers);
|
|
|
|
va_start (ap, NumPeers);
|
|
This = va_arg (ap, ACPI_PARSE_OBJECT *);
|
|
Start = This;
|
|
|
|
/*
|
|
* Link all peers
|
|
*/
|
|
for (i = 0; i < (NumPeers -1); i++)
|
|
{
|
|
DbgPrint (ASL_PARSE_OUTPUT, "%u=%p ", (i+1), This);
|
|
|
|
while (This->Asl.Next)
|
|
{
|
|
This = This->Asl.Next;
|
|
}
|
|
|
|
/* Get another peer node */
|
|
|
|
Next = va_arg (ap, ACPI_PARSE_OBJECT *);
|
|
if (!Next)
|
|
{
|
|
Next = TrAllocateNode (PARSEOP_DEFAULT_ARG);
|
|
}
|
|
|
|
/* link new node to the current node */
|
|
|
|
This->Asl.Next = Next;
|
|
This = Next;
|
|
}
|
|
va_end (ap);
|
|
|
|
DbgPrint (ASL_PARSE_OUTPUT,"\n\n");
|
|
return (Start);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: TrLinkChildNode
|
|
*
|
|
* PARAMETERS: Op1 - Parent node
|
|
* Op2 - Op to become a child
|
|
*
|
|
* RETURN: The parent node
|
|
*
|
|
* DESCRIPTION: Link two nodes together as a parent and child
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_PARSE_OBJECT *
|
|
TrLinkChildNode (
|
|
ACPI_PARSE_OBJECT *Op1,
|
|
ACPI_PARSE_OBJECT *Op2)
|
|
{
|
|
ACPI_PARSE_OBJECT *Next;
|
|
|
|
|
|
DbgPrint (ASL_PARSE_OUTPUT,
|
|
"\nLinkChildNode: Parent=%p (%s), Child=%p (%s)\n\n",
|
|
Op1, Op1 ? UtGetOpName(Op1->Asl.ParseOpcode): NULL,
|
|
Op2, Op2 ? UtGetOpName(Op2->Asl.ParseOpcode): NULL);
|
|
|
|
if (!Op1 || !Op2)
|
|
{
|
|
return (Op1);
|
|
}
|
|
|
|
Op1->Asl.Child = Op2;
|
|
|
|
/* Set the child and all peers of the child to point to the parent */
|
|
|
|
Next = Op2;
|
|
while (Next)
|
|
{
|
|
Next->Asl.Parent = Op1;
|
|
Next = Next->Asl.Next;
|
|
}
|
|
|
|
return (Op1);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: TrWalkParseTree
|
|
*
|
|
* PARAMETERS: Visitation - Type of walk
|
|
* DescendingCallback - Called during tree descent
|
|
* AscendingCallback - Called during tree ascent
|
|
* Context - To be passed to the callbacks
|
|
*
|
|
* RETURN: Status from callback(s)
|
|
*
|
|
* DESCRIPTION: Walk the entire parse tree.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
TrWalkParseTree (
|
|
ACPI_PARSE_OBJECT *Op,
|
|
UINT32 Visitation,
|
|
ASL_WALK_CALLBACK DescendingCallback,
|
|
ASL_WALK_CALLBACK AscendingCallback,
|
|
void *Context)
|
|
{
|
|
UINT32 Level;
|
|
BOOLEAN NodePreviouslyVisited;
|
|
ACPI_PARSE_OBJECT *StartOp = Op;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
if (!RootNode)
|
|
{
|
|
return (AE_OK);
|
|
}
|
|
|
|
Level = 0;
|
|
NodePreviouslyVisited = FALSE;
|
|
|
|
switch (Visitation)
|
|
{
|
|
case ASL_WALK_VISIT_DOWNWARD:
|
|
|
|
while (Op)
|
|
{
|
|
if (!NodePreviouslyVisited)
|
|
{
|
|
/* Let the callback process the node. */
|
|
|
|
Status = DescendingCallback (Op, Level, Context);
|
|
if (ACPI_SUCCESS (Status))
|
|
{
|
|
/* Visit children first, once */
|
|
|
|
if (Op->Asl.Child)
|
|
{
|
|
Level++;
|
|
Op = Op->Asl.Child;
|
|
continue;
|
|
}
|
|
}
|
|
else if (Status != AE_CTRL_DEPTH)
|
|
{
|
|
/* Exit immediately on any error */
|
|
|
|
return (Status);
|
|
}
|
|
}
|
|
|
|
/* Terminate walk at start op */
|
|
|
|
if (Op == StartOp)
|
|
{
|
|
break;
|
|
}
|
|
|
|
/* No more children, visit peers */
|
|
|
|
if (Op->Asl.Next)
|
|
{
|
|
Op = Op->Asl.Next;
|
|
NodePreviouslyVisited = FALSE;
|
|
}
|
|
else
|
|
{
|
|
/* No children or peers, re-visit parent */
|
|
|
|
if (Level != 0 )
|
|
{
|
|
Level--;
|
|
}
|
|
Op = Op->Asl.Parent;
|
|
NodePreviouslyVisited = TRUE;
|
|
}
|
|
}
|
|
break;
|
|
|
|
|
|
case ASL_WALK_VISIT_UPWARD:
|
|
|
|
while (Op)
|
|
{
|
|
/* Visit leaf node (no children) or parent node on return trip */
|
|
|
|
if ((!Op->Asl.Child) ||
|
|
(NodePreviouslyVisited))
|
|
{
|
|
/* Let the callback process the node. */
|
|
|
|
Status = AscendingCallback (Op, Level, Context);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return (Status);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Visit children first, once */
|
|
|
|
Level++;
|
|
Op = Op->Asl.Child;
|
|
continue;
|
|
}
|
|
|
|
/* Terminate walk at start op */
|
|
|
|
if (Op == StartOp)
|
|
{
|
|
break;
|
|
}
|
|
|
|
/* No more children, visit peers */
|
|
|
|
if (Op->Asl.Next)
|
|
{
|
|
Op = Op->Asl.Next;
|
|
NodePreviouslyVisited = FALSE;
|
|
}
|
|
else
|
|
{
|
|
/* No children or peers, re-visit parent */
|
|
|
|
if (Level != 0 )
|
|
{
|
|
Level--;
|
|
}
|
|
Op = Op->Asl.Parent;
|
|
NodePreviouslyVisited = TRUE;
|
|
}
|
|
}
|
|
break;
|
|
|
|
|
|
case ASL_WALK_VISIT_TWICE:
|
|
|
|
while (Op)
|
|
{
|
|
if (NodePreviouslyVisited)
|
|
{
|
|
Status = AscendingCallback (Op, Level, Context);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return (Status);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Let the callback process the node. */
|
|
|
|
Status = DescendingCallback (Op, Level, Context);
|
|
if (ACPI_SUCCESS (Status))
|
|
{
|
|
/* Visit children first, once */
|
|
|
|
if (Op->Asl.Child)
|
|
{
|
|
Level++;
|
|
Op = Op->Asl.Child;
|
|
continue;
|
|
}
|
|
}
|
|
else if (Status != AE_CTRL_DEPTH)
|
|
{
|
|
/* Exit immediately on any error */
|
|
|
|
return (Status);
|
|
}
|
|
}
|
|
|
|
/* Terminate walk at start op */
|
|
|
|
if (Op == StartOp)
|
|
{
|
|
break;
|
|
}
|
|
|
|
/* No more children, visit peers */
|
|
|
|
if (Op->Asl.Next)
|
|
{
|
|
Op = Op->Asl.Next;
|
|
NodePreviouslyVisited = FALSE;
|
|
}
|
|
else
|
|
{
|
|
/* No children or peers, re-visit parent */
|
|
|
|
if (Level != 0 )
|
|
{
|
|
Level--;
|
|
}
|
|
Op = Op->Asl.Parent;
|
|
NodePreviouslyVisited = TRUE;
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
/* No other types supported */
|
|
break;
|
|
}
|
|
|
|
/* If we get here, the walk completed with no errors */
|
|
|
|
return (AE_OK);
|
|
}
|