975 lines
30 KiB
C
975 lines
30 KiB
C
/******************************************************************************
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*
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* Module Name: dswload - Dispatcher namespace load callbacks
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*
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*****************************************************************************/
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/******************************************************************************
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*
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* 1. Copyright Notice
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*
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* Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
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* All rights reserved.
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*
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* 2. License
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*
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* 2.1. This is your license from Intel Corp. under its intellectual property
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* rights. You may have additional license terms from the party that provided
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* you this software, covering your right to use that party's intellectual
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* property rights.
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*
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* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
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* copy of the source code appearing in this file ("Covered Code") an
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* irrevocable, perpetual, worldwide license under Intel's copyrights in the
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* base code distributed originally by Intel ("Original Intel Code") to copy,
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* make derivatives, distribute, use and display any portion of the Covered
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* Code in any form, with the right to sublicense such rights; and
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*
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* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
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* license (with the right to sublicense), under only those claims of Intel
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* patents that are infringed by the Original Intel Code, to make, use, sell,
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* offer to sell, and import the Covered Code and derivative works thereof
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* solely to the minimum extent necessary to exercise the above copyright
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* license, and in no event shall the patent license extend to any additions
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* to or modifications of the Original Intel Code. No other license or right
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* is granted directly or by implication, estoppel or otherwise;
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*
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* The above copyright and patent license is granted only if the following
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* conditions are met:
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*
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* 3. Conditions
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*
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* 3.1. Redistribution of Source with Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification with rights to further distribute source must include
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* the above Copyright Notice, the above License, this list of Conditions,
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* and the following Disclaimer and Export Compliance provision. In addition,
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* Licensee must cause all Covered Code to which Licensee contributes to
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* contain a file documenting the changes Licensee made to create that Covered
|
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* Code and the date of any change. Licensee must include in that file the
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* documentation of any changes made by any predecessor Licensee. Licensee
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* must include a prominent statement that the modification is derived,
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* directly or indirectly, from Original Intel Code.
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*
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* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
|
|
* Code or modification without rights to further distribute source must
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* include the following Disclaimer and Export Compliance provision in the
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* documentation and/or other materials provided with distribution. In
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* addition, Licensee may not authorize further sublicense of source of any
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* portion of the Covered Code, and must include terms to the effect that the
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* license from Licensee to its licensee is limited to the intellectual
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* property embodied in the software Licensee provides to its licensee, and
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* not to intellectual property embodied in modifications its licensee may
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* make.
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*
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* 3.3. Redistribution of Executable. Redistribution in executable form of any
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* substantial portion of the Covered Code or modification must reproduce the
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* above Copyright Notice, and the following Disclaimer and Export Compliance
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* provision in the documentation and/or other materials provided with the
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* distribution.
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*
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* 3.4. Intel retains all right, title, and interest in and to the Original
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* Intel Code.
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*
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* 3.5. Neither the name Intel nor any other trademark owned or controlled by
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* Intel shall be used in advertising or otherwise to promote the sale, use or
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* other dealings in products derived from or relating to the Covered Code
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* without prior written authorization from Intel.
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*
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* 4. Disclaimer and Export Compliance
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*
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* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
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* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
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* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
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* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
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* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
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* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
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* PARTICULAR PURPOSE.
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*
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* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
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* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
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* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
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* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
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* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
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* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
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* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
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* LIMITED REMEDY.
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*
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* 4.3. Licensee shall not export, either directly or indirectly, any of this
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* software or system incorporating such software without first obtaining any
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* required license or other approval from the U. S. Department of Commerce or
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* any other agency or department of the United States Government. In the
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* event Licensee exports any such software from the United States or
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* re-exports any such software from a foreign destination, Licensee shall
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* ensure that the distribution and export/re-export of the software is in
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* compliance with all laws, regulations, orders, or other restrictions of the
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* U.S. Export Administration Regulations. Licensee agrees that neither it nor
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* any of its subsidiaries will export/re-export any technical data, process,
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* software, or service, directly or indirectly, to any country for which the
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* United States government or any agency thereof requires an export license,
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* other governmental approval, or letter of assurance, without first obtaining
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* such license, approval or letter.
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*
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*****************************************************************************/
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#define __ASLLOAD_C__
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#include "aslcompiler.h"
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#include "amlcode.h"
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#include "acdispat.h"
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#include "acnamesp.h"
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#include "aslcompiler.y.h"
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#define _COMPONENT ACPI_COMPILER
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ACPI_MODULE_NAME ("aslload")
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/* Local prototypes */
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static ACPI_STATUS
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LdLoadFieldElements (
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ACPI_PARSE_OBJECT *Op,
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ACPI_WALK_STATE *WalkState);
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static ACPI_STATUS
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LdLoadResourceElements (
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ACPI_PARSE_OBJECT *Op,
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ACPI_WALK_STATE *WalkState);
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static ACPI_STATUS
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LdNamespace1Begin (
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ACPI_PARSE_OBJECT *Op,
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UINT32 Level,
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void *Context);
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static ACPI_STATUS
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LdNamespace2Begin (
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ACPI_PARSE_OBJECT *Op,
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UINT32 Level,
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void *Context);
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static ACPI_STATUS
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LdCommonNamespaceEnd (
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ACPI_PARSE_OBJECT *Op,
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UINT32 Level,
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void *Context);
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/*******************************************************************************
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*
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* FUNCTION: LdLoadNamespace
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*
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* PARAMETERS: RootOp - Root of the parse tree
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*
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* RETURN: Status
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*
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* DESCRIPTION: Perform a walk of the parse tree that in turn loads all of the
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* named ASL/AML objects into the namespace. The namespace is
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* constructed in order to resolve named references and references
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* to named fields within resource templates/descriptors.
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*
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******************************************************************************/
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ACPI_STATUS
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LdLoadNamespace (
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ACPI_PARSE_OBJECT *RootOp)
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{
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ACPI_WALK_STATE *WalkState;
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DbgPrint (ASL_DEBUG_OUTPUT, "\nCreating namespace\n\n");
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/* Create a new walk state */
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WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
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if (!WalkState)
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{
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return AE_NO_MEMORY;
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}
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/* Walk the entire parse tree, first pass */
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TrWalkParseTree (RootOp, ASL_WALK_VISIT_TWICE, LdNamespace1Begin,
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LdCommonNamespaceEnd, WalkState);
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/* Second pass to handle forward references */
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TrWalkParseTree (RootOp, ASL_WALK_VISIT_TWICE, LdNamespace2Begin,
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LdCommonNamespaceEnd, WalkState);
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/* Dump the namespace if debug is enabled */
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AcpiNsDumpTables (ACPI_NS_ALL, ACPI_UINT32_MAX);
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return AE_OK;
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}
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/*******************************************************************************
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*
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* FUNCTION: LdLoadFieldElements
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*
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* PARAMETERS: Op - Parent node (Field)
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* WalkState - Current walk state
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*
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* RETURN: Status
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*
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* DESCRIPTION: Enter the named elements of the field (children of the parent)
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* into the namespace.
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*
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******************************************************************************/
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static ACPI_STATUS
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LdLoadFieldElements (
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ACPI_PARSE_OBJECT *Op,
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ACPI_WALK_STATE *WalkState)
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{
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ACPI_PARSE_OBJECT *Child = NULL;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_STATUS Status;
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/* Get the first named field element */
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switch (Op->Asl.AmlOpcode)
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{
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case AML_BANK_FIELD_OP:
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Child = UtGetArg (Op, 6);
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break;
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case AML_INDEX_FIELD_OP:
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Child = UtGetArg (Op, 5);
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break;
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case AML_FIELD_OP:
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Child = UtGetArg (Op, 4);
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break;
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default:
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/* No other opcodes should arrive here */
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return (AE_BAD_PARAMETER);
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}
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/* Enter all elements into the namespace */
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while (Child)
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{
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switch (Child->Asl.AmlOpcode)
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{
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case AML_INT_RESERVEDFIELD_OP:
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case AML_INT_ACCESSFIELD_OP:
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break;
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default:
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Status = AcpiNsLookup (WalkState->ScopeInfo,
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Child->Asl.Value.String,
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ACPI_TYPE_LOCAL_REGION_FIELD,
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ACPI_IMODE_LOAD_PASS1,
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ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE |
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ACPI_NS_ERROR_IF_FOUND,
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NULL, &Node);
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if (ACPI_FAILURE (Status))
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{
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if (Status != AE_ALREADY_EXISTS)
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{
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AslError (ASL_ERROR, ASL_MSG_CORE_EXCEPTION, Child,
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Child->Asl.Value.String);
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return (Status);
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}
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/*
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* The name already exists in this scope
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* But continue processing the elements
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*/
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AslError (ASL_ERROR, ASL_MSG_NAME_EXISTS, Child,
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Child->Asl.Value.String);
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}
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else
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{
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Child->Asl.Node = Node;
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Node->Op = Child;
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}
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break;
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}
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Child = Child->Asl.Next;
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}
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return (AE_OK);
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}
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|
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/*******************************************************************************
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*
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* FUNCTION: LdLoadResourceElements
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*
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* PARAMETERS: Op - Parent node (Resource Descriptor)
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* WalkState - Current walk state
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*
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* RETURN: Status
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*
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* DESCRIPTION: Enter the named elements of the resource descriptor (children
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* of the parent) into the namespace.
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*
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* NOTE: In the real AML namespace, these named elements never exist. But
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* we simply use the namespace here as a symbol table so we can look
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* them up as they are referenced.
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*
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******************************************************************************/
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static ACPI_STATUS
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LdLoadResourceElements (
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ACPI_PARSE_OBJECT *Op,
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ACPI_WALK_STATE *WalkState)
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{
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ACPI_PARSE_OBJECT *InitializerOp = NULL;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_STATUS Status;
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|
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/*
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* Enter the resource name into the namespace. Name must not already exist.
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* This opens a scope, so later field names are guaranteed to be new/unique.
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*/
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Status = AcpiNsLookup (WalkState->ScopeInfo, Op->Asl.Namepath,
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ACPI_TYPE_LOCAL_RESOURCE, ACPI_IMODE_LOAD_PASS1,
|
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ACPI_NS_NO_UPSEARCH | ACPI_NS_ERROR_IF_FOUND,
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WalkState, &Node);
|
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if (ACPI_FAILURE (Status))
|
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{
|
|
if (Status == AE_ALREADY_EXISTS)
|
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{
|
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/* Actual node causing the error was saved in ParentMethod */
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AslError (ASL_ERROR, ASL_MSG_NAME_EXISTS,
|
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(ACPI_PARSE_OBJECT *) Op->Asl.ParentMethod, Op->Asl.Namepath);
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return (AE_OK);
|
|
}
|
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return (Status);
|
|
}
|
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|
|
Node->Value = (UINT32) Op->Asl.Value.Integer;
|
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Node->Op = Op;
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Op->Asl.Node = Node;
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|
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/*
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* Now enter the predefined fields, for easy lookup when referenced
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* by the source ASL
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*/
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InitializerOp = ASL_GET_CHILD_NODE (Op);
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while (InitializerOp)
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|
{
|
|
|
|
if (InitializerOp->Asl.ExternalName)
|
|
{
|
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Status = AcpiNsLookup (WalkState->ScopeInfo,
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InitializerOp->Asl.ExternalName,
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ACPI_TYPE_LOCAL_RESOURCE_FIELD,
|
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ACPI_IMODE_LOAD_PASS1,
|
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ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE,
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NULL, &Node);
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if (ACPI_FAILURE (Status))
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{
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return (Status);
|
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}
|
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|
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/*
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* Store the field offset in the namespace node so it
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* can be used when the field is referenced
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*/
|
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Node->Value = (UINT32) InitializerOp->Asl.Value.Integer;
|
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InitializerOp->Asl.Node = Node;
|
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Node->Op = InitializerOp;
|
|
|
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/* Pass thru the field type (Bitfield or Bytefield) */
|
|
|
|
if (InitializerOp->Asl.CompileFlags & NODE_IS_BIT_OFFSET)
|
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{
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Node->Flags |= ANOBJ_IS_BIT_OFFSET;
|
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}
|
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}
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InitializerOp = ASL_GET_PEER_NODE (InitializerOp);
|
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}
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return (AE_OK);
|
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}
|
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|
|
|
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/*******************************************************************************
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*
|
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* FUNCTION: LdNamespace1Begin
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|
*
|
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* PARAMETERS: ASL_WALK_CALLBACK
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*
|
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* RETURN: Status
|
|
*
|
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* DESCRIPTION: Descending callback used during the parse tree walk. If this
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* is a named AML opcode, enter into the namespace
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*
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******************************************************************************/
|
|
|
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static ACPI_STATUS
|
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LdNamespace1Begin (
|
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ACPI_PARSE_OBJECT *Op,
|
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UINT32 Level,
|
|
void *Context)
|
|
{
|
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ACPI_WALK_STATE *WalkState = (ACPI_WALK_STATE *) Context;
|
|
ACPI_NAMESPACE_NODE *Node;
|
|
ACPI_STATUS Status;
|
|
ACPI_OBJECT_TYPE ObjectType;
|
|
ACPI_OBJECT_TYPE ActualObjectType = ACPI_TYPE_ANY;
|
|
char *Path;
|
|
UINT32 Flags = ACPI_NS_NO_UPSEARCH;
|
|
ACPI_PARSE_OBJECT *Arg;
|
|
UINT32 i;
|
|
BOOLEAN ForceNewScope = FALSE;
|
|
|
|
|
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ACPI_FUNCTION_NAME (LdNamespace1Begin);
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op %p [%s]\n",
|
|
Op, Op->Asl.ParseOpName));
|
|
|
|
|
|
/*
|
|
* We are only interested in opcodes that have an associated name
|
|
* (or multiple names)
|
|
*/
|
|
switch (Op->Asl.AmlOpcode)
|
|
{
|
|
case AML_BANK_FIELD_OP:
|
|
case AML_INDEX_FIELD_OP:
|
|
case AML_FIELD_OP:
|
|
|
|
Status = LdLoadFieldElements (Op, WalkState);
|
|
return (Status);
|
|
|
|
default:
|
|
|
|
/* All other opcodes go below */
|
|
break;
|
|
}
|
|
|
|
/* Check if this object has already been installed in the namespace */
|
|
|
|
if (Op->Asl.Node)
|
|
{
|
|
return (AE_OK);
|
|
}
|
|
|
|
Path = Op->Asl.Namepath;
|
|
if (!Path)
|
|
{
|
|
return (AE_OK);
|
|
}
|
|
|
|
/* Map the raw opcode into an internal object type */
|
|
|
|
switch (Op->Asl.ParseOpcode)
|
|
{
|
|
case PARSEOP_NAME:
|
|
|
|
Arg = Op->Asl.Child; /* Get the NameSeg/NameString node */
|
|
Arg = Arg->Asl.Next; /* First peer is the object to be associated with the name */
|
|
|
|
/*
|
|
* If this name refers to a ResourceTemplate, we will need to open
|
|
* a new scope so that the resource subfield names can be entered into
|
|
* the namespace underneath this name
|
|
*/
|
|
if (Op->Asl.CompileFlags & NODE_IS_RESOURCE_DESC)
|
|
{
|
|
ForceNewScope = TRUE;
|
|
}
|
|
|
|
/* Get the data type associated with the named object, not the name itself */
|
|
|
|
/* Log2 loop to convert from Btype (binary) to Etype (encoded) */
|
|
|
|
ObjectType = 1;
|
|
for (i = 1; i < Arg->Asl.AcpiBtype; i *= 2)
|
|
{
|
|
ObjectType++;
|
|
}
|
|
break;
|
|
|
|
|
|
case PARSEOP_EXTERNAL:
|
|
|
|
/*
|
|
* "External" simply enters a name and type into the namespace.
|
|
* We must be careful to not open a new scope, however, no matter
|
|
* what type the external name refers to (e.g., a method)
|
|
*
|
|
* first child is name, next child is ObjectType
|
|
*/
|
|
ActualObjectType = (UINT8) Op->Asl.Child->Asl.Next->Asl.Value.Integer;
|
|
ObjectType = ACPI_TYPE_ANY;
|
|
|
|
/*
|
|
* We will mark every new node along the path as "External". This
|
|
* allows some or all of the nodes to be created later in the ASL
|
|
* code. Handles cases like this:
|
|
*
|
|
* External (\_SB_.PCI0.ABCD, IntObj)
|
|
* Scope (_SB_)
|
|
* {
|
|
* Device (PCI0)
|
|
* {
|
|
* }
|
|
* }
|
|
* Method (X)
|
|
* {
|
|
* Store (\_SB_.PCI0.ABCD, Local0)
|
|
* }
|
|
*/
|
|
Flags |= ACPI_NS_EXTERNAL;
|
|
break;
|
|
|
|
case PARSEOP_DEFAULT_ARG:
|
|
|
|
if (Op->Asl.CompileFlags == NODE_IS_RESOURCE_DESC)
|
|
{
|
|
Status = LdLoadResourceElements (Op, WalkState);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode);
|
|
break;
|
|
|
|
|
|
case PARSEOP_SCOPE:
|
|
|
|
/*
|
|
* The name referenced by Scope(Name) must already exist at this point.
|
|
* In other words, forward references for Scope() are not supported.
|
|
* The only real reason for this is that the MS interpreter cannot
|
|
* handle this case. Perhaps someday this case can go away.
|
|
*/
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ACPI_TYPE_ANY,
|
|
ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
|
|
WalkState, &(Node));
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
if (Status == AE_NOT_FOUND)
|
|
{
|
|
/* The name was not found, go ahead and create it */
|
|
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo, Path,
|
|
ACPI_TYPE_LOCAL_SCOPE,
|
|
ACPI_IMODE_LOAD_PASS1, Flags,
|
|
WalkState, &(Node));
|
|
|
|
/*
|
|
* However, this is an error -- primarily because the MS
|
|
* interpreter can't handle a forward reference from the
|
|
* Scope() operator.
|
|
*/
|
|
AslError (ASL_ERROR, ASL_MSG_NOT_FOUND, Op,
|
|
Op->Asl.ExternalName);
|
|
AslError (ASL_ERROR, ASL_MSG_SCOPE_FWD_REF, Op,
|
|
Op->Asl.ExternalName);
|
|
goto FinishNode;
|
|
}
|
|
|
|
AslCoreSubsystemError (Op, Status,
|
|
"Failure from namespace lookup", FALSE);
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* We found a node with this name, now check the type */
|
|
|
|
switch (Node->Type)
|
|
{
|
|
case ACPI_TYPE_LOCAL_SCOPE:
|
|
case ACPI_TYPE_DEVICE:
|
|
case ACPI_TYPE_POWER:
|
|
case ACPI_TYPE_PROCESSOR:
|
|
case ACPI_TYPE_THERMAL:
|
|
|
|
/* These are acceptable types - they all open a new scope */
|
|
break;
|
|
|
|
case ACPI_TYPE_INTEGER:
|
|
case ACPI_TYPE_STRING:
|
|
case ACPI_TYPE_BUFFER:
|
|
|
|
/*
|
|
* These types we will allow, but we will change the type.
|
|
* This enables some existing code of the form:
|
|
*
|
|
* Name (DEB, 0)
|
|
* Scope (DEB) { ... }
|
|
*
|
|
* Which is used to workaround the fact that the MS interpreter
|
|
* does not allow Scope() forward references.
|
|
*/
|
|
sprintf (MsgBuffer, "%s [%s], changing type to [Scope]",
|
|
Op->Asl.ExternalName, AcpiUtGetTypeName (Node->Type));
|
|
AslError (ASL_REMARK, ASL_MSG_SCOPE_TYPE, Op, MsgBuffer);
|
|
|
|
/* Switch the type to scope, open the new scope */
|
|
|
|
Node->Type = ACPI_TYPE_LOCAL_SCOPE;
|
|
Status = AcpiDsScopeStackPush (Node, ACPI_TYPE_LOCAL_SCOPE,
|
|
WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
|
|
/* All other types are an error */
|
|
|
|
sprintf (MsgBuffer, "%s [%s]", Op->Asl.ExternalName,
|
|
AcpiUtGetTypeName (Node->Type));
|
|
AslError (ASL_ERROR, ASL_MSG_SCOPE_TYPE, Op, MsgBuffer);
|
|
|
|
/*
|
|
* However, switch the type to be an actual scope so
|
|
* that compilation can continue without generating a whole
|
|
* cascade of additional errors. Open the new scope.
|
|
*/
|
|
Node->Type = ACPI_TYPE_LOCAL_SCOPE;
|
|
Status = AcpiDsScopeStackPush (Node, ACPI_TYPE_LOCAL_SCOPE,
|
|
WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
break;
|
|
}
|
|
|
|
Status = AE_OK;
|
|
goto FinishNode;
|
|
|
|
|
|
default:
|
|
|
|
ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode);
|
|
break;
|
|
}
|
|
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Loading name: %s, (%s)\n",
|
|
Op->Asl.ExternalName, AcpiUtGetTypeName (ObjectType)));
|
|
|
|
/* The name must not already exist */
|
|
|
|
Flags |= ACPI_NS_ERROR_IF_FOUND;
|
|
|
|
/*
|
|
* Enter the named type into the internal namespace. We enter the name
|
|
* as we go downward in the parse tree. Any necessary subobjects that
|
|
* involve arguments to the opcode must be created as we go back up the
|
|
* parse tree later.
|
|
*/
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType,
|
|
ACPI_IMODE_LOAD_PASS1, Flags, WalkState, &Node);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
if (Status == AE_ALREADY_EXISTS)
|
|
{
|
|
/* The name already exists in this scope */
|
|
|
|
if (Node->Type == ACPI_TYPE_LOCAL_SCOPE)
|
|
{
|
|
/* Allow multiple references to the same scope */
|
|
|
|
Node->Type = (UINT8) ObjectType;
|
|
Status = AE_OK;
|
|
}
|
|
else if ((Node->Flags & ANOBJ_IS_EXTERNAL) &&
|
|
(Op->Asl.ParseOpcode != PARSEOP_EXTERNAL))
|
|
{
|
|
/*
|
|
* Allow one create on an object or segment that was
|
|
* previously declared External
|
|
*/
|
|
Node->Flags &= ~ANOBJ_IS_EXTERNAL;
|
|
Node->Type = (UINT8) ObjectType;
|
|
|
|
/* Just retyped a node, probably will need to open a scope */
|
|
|
|
if (AcpiNsOpensScope (ObjectType))
|
|
{
|
|
Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
Status = AE_OK;
|
|
}
|
|
else
|
|
{
|
|
/* Valid error, object already exists */
|
|
|
|
AslError (ASL_ERROR, ASL_MSG_NAME_EXISTS, Op,
|
|
Op->Asl.ExternalName);
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
AslCoreSubsystemError (Op, Status,
|
|
"Failure from namespace lookup", FALSE);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
|
|
if (ForceNewScope)
|
|
{
|
|
Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
|
|
FinishNode:
|
|
/*
|
|
* Point the parse node to the new namespace node, and point
|
|
* the Node back to the original Parse node
|
|
*/
|
|
Op->Asl.Node = Node;
|
|
Node->Op = Op;
|
|
|
|
/* Set the actual data type if appropriate (EXTERNAL term only) */
|
|
|
|
if (ActualObjectType != ACPI_TYPE_ANY)
|
|
{
|
|
Node->Type = (UINT8) ActualObjectType;
|
|
Node->Value = ASL_EXTERNAL_METHOD;
|
|
}
|
|
|
|
if (Op->Asl.ParseOpcode == PARSEOP_METHOD)
|
|
{
|
|
/*
|
|
* Get the method argument count from "Extra" and save
|
|
* it in the namespace node
|
|
*/
|
|
Node->Value = (UINT32) Op->Asl.Extra;
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: LdNamespace2Begin
|
|
*
|
|
* PARAMETERS: ASL_WALK_CALLBACK
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Descending callback used during the pass 2 parse tree walk.
|
|
* Second pass resolves some forward references.
|
|
*
|
|
* Notes:
|
|
* Currently only needs to handle the Alias operator.
|
|
* Could be used to allow forward references from the Scope() operator, but
|
|
* the MS interpreter does not allow this, so this compiler does not either.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static ACPI_STATUS
|
|
LdNamespace2Begin (
|
|
ACPI_PARSE_OBJECT *Op,
|
|
UINT32 Level,
|
|
void *Context)
|
|
{
|
|
ACPI_WALK_STATE *WalkState = (ACPI_WALK_STATE *) Context;
|
|
ACPI_STATUS Status;
|
|
ACPI_NAMESPACE_NODE *Node;
|
|
ACPI_OBJECT_TYPE ObjectType;
|
|
BOOLEAN ForceNewScope = FALSE;
|
|
ACPI_PARSE_OBJECT *Arg;
|
|
char *Path;
|
|
ACPI_NAMESPACE_NODE *TargetNode;
|
|
|
|
|
|
ACPI_FUNCTION_NAME (LdNamespace2Begin);
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op %p [%s]\n",
|
|
Op, Op->Asl.ParseOpName));
|
|
|
|
|
|
/* Ignore Ops with no namespace node */
|
|
|
|
Node = Op->Asl.Node;
|
|
if (!Node)
|
|
{
|
|
return (AE_OK);
|
|
}
|
|
|
|
/* Get the type to determine if we should push the scope */
|
|
|
|
if ((Op->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG) &&
|
|
(Op->Asl.CompileFlags == NODE_IS_RESOURCE_DESC))
|
|
{
|
|
ObjectType = ACPI_TYPE_LOCAL_RESOURCE;
|
|
}
|
|
else
|
|
{
|
|
ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode);
|
|
}
|
|
|
|
/* Push scope for Resource Templates */
|
|
|
|
if (Op->Asl.ParseOpcode == PARSEOP_NAME)
|
|
{
|
|
if (Op->Asl.CompileFlags & NODE_IS_RESOURCE_DESC)
|
|
{
|
|
ForceNewScope = TRUE;
|
|
}
|
|
}
|
|
|
|
/* Push the scope stack */
|
|
|
|
if (ForceNewScope || AcpiNsOpensScope (ObjectType))
|
|
{
|
|
Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
|
|
if (Op->Asl.ParseOpcode == PARSEOP_ALIAS)
|
|
{
|
|
/* Complete the alias node by getting and saving the target node */
|
|
|
|
/* First child is the alias target */
|
|
|
|
Arg = Op->Asl.Child;
|
|
|
|
/* Get the target pathname */
|
|
|
|
Path = Arg->Asl.Namepath;
|
|
if (!Path)
|
|
{
|
|
Status = UtInternalizeName (Arg->Asl.ExternalName, &Path);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return (Status);
|
|
}
|
|
}
|
|
|
|
/* Get the NS node associated with the target. It must exist. */
|
|
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ACPI_TYPE_ANY,
|
|
ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE,
|
|
WalkState, &TargetNode);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
if (Status == AE_NOT_FOUND)
|
|
{
|
|
AslError (ASL_ERROR, ASL_MSG_NOT_FOUND, Op,
|
|
Op->Asl.ExternalName);
|
|
|
|
/*
|
|
* The name was not found, go ahead and create it.
|
|
* This prevents more errors later.
|
|
*/
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo, Path,
|
|
ACPI_TYPE_ANY,
|
|
ACPI_IMODE_LOAD_PASS1, ACPI_NS_NO_UPSEARCH,
|
|
WalkState, &(Node));
|
|
return (AE_OK);
|
|
}
|
|
|
|
AslCoreSubsystemError (Op, Status,
|
|
"Failure from namespace lookup", FALSE);
|
|
return (AE_OK);
|
|
}
|
|
|
|
/* Save the target node within the alias node */
|
|
|
|
Node->Object = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, TargetNode);
|
|
}
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: LdCommonNamespaceEnd
|
|
*
|
|
* PARAMETERS: ASL_WALK_CALLBACK
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Ascending callback used during the loading of the namespace,
|
|
* We only need to worry about managing the scope stack here.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static ACPI_STATUS
|
|
LdCommonNamespaceEnd (
|
|
ACPI_PARSE_OBJECT *Op,
|
|
UINT32 Level,
|
|
void *Context)
|
|
{
|
|
ACPI_WALK_STATE *WalkState = (ACPI_WALK_STATE *) Context;
|
|
ACPI_OBJECT_TYPE ObjectType;
|
|
BOOLEAN ForceNewScope = FALSE;
|
|
|
|
|
|
ACPI_FUNCTION_NAME (LdCommonNamespaceEnd);
|
|
|
|
|
|
/* We are only interested in opcodes that have an associated name */
|
|
|
|
if (!Op->Asl.Namepath)
|
|
{
|
|
return (AE_OK);
|
|
}
|
|
|
|
/* Get the type to determine if we should pop the scope */
|
|
|
|
if ((Op->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG) &&
|
|
(Op->Asl.CompileFlags == NODE_IS_RESOURCE_DESC))
|
|
{
|
|
/* TBD: Merge into AcpiDsMapNamedOpcodeToDataType */
|
|
|
|
ObjectType = ACPI_TYPE_LOCAL_RESOURCE;
|
|
}
|
|
else
|
|
{
|
|
ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode);
|
|
}
|
|
|
|
/* Pop scope that was pushed for Resource Templates */
|
|
|
|
if (Op->Asl.ParseOpcode == PARSEOP_NAME)
|
|
{
|
|
if (Op->Asl.CompileFlags & NODE_IS_RESOURCE_DESC)
|
|
{
|
|
ForceNewScope = TRUE;
|
|
}
|
|
}
|
|
|
|
/* Pop the scope stack */
|
|
|
|
if (ForceNewScope || AcpiNsOpensScope (ObjectType))
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
|
|
"(%s): Popping scope for Op [%s] %p\n",
|
|
AcpiUtGetTypeName (ObjectType), Op->Asl.ParseOpName, Op));
|
|
|
|
(void) AcpiDsScopeStackPop (WalkState);
|
|
}
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
|