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526 lines
16 KiB
C
526 lines
16 KiB
C
/*******************************************************************************
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*
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* Module Name: dmnames - AML disassembler, names, namestrings, pathnames
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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 - 2011, 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
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* 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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#include "acpi.h"
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#include "accommon.h"
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#include "acparser.h"
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#include "amlcode.h"
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#include "acnamesp.h"
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#include "acdisasm.h"
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#ifdef ACPI_DISASSEMBLER
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#define _COMPONENT ACPI_CA_DEBUGGER
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ACPI_MODULE_NAME ("dmnames")
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/* Local prototypes */
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#ifdef ACPI_OBSOLETE_FUNCTIONS
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void
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AcpiDmDisplayPath (
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ACPI_PARSE_OBJECT *Op);
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#endif
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/*******************************************************************************
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*
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* FUNCTION: AcpiDmDumpName
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*
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* PARAMETERS: Name - 4 character ACPI name
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*
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* RETURN: Final length of name
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*
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* DESCRIPTION: Dump an ACPI name, minus any trailing underscores.
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*
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******************************************************************************/
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UINT32
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AcpiDmDumpName (
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UINT32 Name)
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{
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UINT32 i;
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UINT32 Length;
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char NewName[4];
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/* Copy name locally in case the original name is not writeable */
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*ACPI_CAST_PTR (UINT32, &NewName[0]) = Name;
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/* Ensure that the name is printable, even if we have to fix it */
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AcpiUtRepairName (NewName);
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/* Remove all trailing underscores from the name */
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Length = ACPI_NAME_SIZE;
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for (i = (ACPI_NAME_SIZE - 1); i != 0; i--)
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{
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if (NewName[i] == '_')
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{
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Length--;
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}
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else
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{
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break;
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}
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}
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/* Dump the name, up to the start of the trailing underscores */
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for (i = 0; i < Length; i++)
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{
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AcpiOsPrintf ("%c", NewName[i]);
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}
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return (Length);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiPsDisplayObjectPathname
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*
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* PARAMETERS: WalkState - Current walk state
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* Op - Object whose pathname is to be obtained
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*
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* RETURN: Status
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*
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* DESCRIPTION: Diplay the pathname associated with a named object. Two
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* versions. One searches the parse tree (for parser-only
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* applications suchas AcpiDump), and the other searches the
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* ACPI namespace (the parse tree is probably deleted)
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiPsDisplayObjectPathname (
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ACPI_WALK_STATE *WalkState,
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ACPI_PARSE_OBJECT *Op)
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{
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ACPI_STATUS Status;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_BUFFER Buffer;
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UINT32 DebugLevel;
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/* Save current debug level so we don't get extraneous debug output */
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DebugLevel = AcpiDbgLevel;
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AcpiDbgLevel = 0;
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/* Just get the Node out of the Op object */
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Node = Op->Common.Node;
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if (!Node)
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{
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/* Node not defined in this scope, look it up */
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Status = AcpiNsLookup (WalkState->ScopeInfo, Op->Common.Value.String,
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ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
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WalkState, &(Node));
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if (ACPI_FAILURE (Status))
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{
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/*
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* We can't get the pathname since the object
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* is not in the namespace. This can happen during single
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* stepping where a dynamic named object is *about* to be created.
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*/
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AcpiOsPrintf (" [Path not found]");
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goto Exit;
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}
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/* Save it for next time. */
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Op->Common.Node = Node;
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}
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/* Convert NamedDesc/handle to a full pathname */
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Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER;
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Status = AcpiNsHandleToPathname (Node, &Buffer);
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if (ACPI_FAILURE (Status))
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{
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AcpiOsPrintf ("****Could not get pathname****)");
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goto Exit;
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}
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AcpiOsPrintf (" (Path %s)", (char *) Buffer.Pointer);
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ACPI_FREE (Buffer.Pointer);
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Exit:
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/* Restore the debug level */
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AcpiDbgLevel = DebugLevel;
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return (Status);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDmNamestring
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*
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* PARAMETERS: Name - ACPI Name string to store
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*
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* RETURN: None
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*
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* DESCRIPTION: Decode and dump an ACPI namestring. Handles prefix characters
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*
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******************************************************************************/
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void
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AcpiDmNamestring (
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char *Name)
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{
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UINT32 SegCount;
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if (!Name)
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{
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return;
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}
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/* Handle all Scope Prefix operators */
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while (AcpiPsIsPrefixChar (ACPI_GET8 (Name)))
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{
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/* Append prefix character */
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AcpiOsPrintf ("%1c", ACPI_GET8 (Name));
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Name++;
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}
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switch (ACPI_GET8 (Name))
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{
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case 0:
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SegCount = 0;
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break;
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case AML_DUAL_NAME_PREFIX:
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SegCount = 2;
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Name++;
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break;
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case AML_MULTI_NAME_PREFIX_OP:
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SegCount = (UINT32) ACPI_GET8 (Name + 1);
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Name += 2;
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break;
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default:
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SegCount = 1;
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break;
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}
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while (SegCount)
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{
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/* Append Name segment */
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AcpiDmDumpName (*ACPI_CAST_PTR (UINT32, Name));
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SegCount--;
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if (SegCount)
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{
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/* Not last name, append dot separator */
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AcpiOsPrintf (".");
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}
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Name += ACPI_NAME_SIZE;
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}
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}
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#ifdef ACPI_OBSOLETE_FUNCTIONS
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/*******************************************************************************
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*
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* FUNCTION: AcpiDmDisplayPath
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*
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* PARAMETERS: Op - Named Op whose path is to be constructed
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*
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* RETURN: None
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*
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* DESCRIPTION: Walk backwards from current scope and display the name
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* of each previous level of scope up to the root scope
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* (like "pwd" does with file systems)
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*
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******************************************************************************/
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void
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AcpiDmDisplayPath (
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ACPI_PARSE_OBJECT *Op)
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{
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ACPI_PARSE_OBJECT *Prev;
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ACPI_PARSE_OBJECT *Search;
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UINT32 Name;
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BOOLEAN DoDot = FALSE;
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ACPI_PARSE_OBJECT *NamePath;
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const ACPI_OPCODE_INFO *OpInfo;
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/* We are only interested in named objects */
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OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
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if (!(OpInfo->Flags & AML_NSNODE))
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{
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return;
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}
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if (OpInfo->Flags & AML_CREATE)
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{
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/* Field creation - check for a fully qualified namepath */
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if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP)
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{
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NamePath = AcpiPsGetArg (Op, 3);
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}
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else
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{
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NamePath = AcpiPsGetArg (Op, 2);
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}
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if ((NamePath) &&
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(NamePath->Common.Value.String) &&
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(NamePath->Common.Value.String[0] == '\\'))
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{
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AcpiDmNamestring (NamePath->Common.Value.String);
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return;
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}
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}
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Prev = NULL; /* Start with Root Node */
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while (Prev != Op)
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{
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/* Search upwards in the tree to find scope with "prev" as its parent */
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Search = Op;
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for (; ;)
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{
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if (Search->Common.Parent == Prev)
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{
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break;
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}
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/* Go up one level */
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Search = Search->Common.Parent;
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}
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if (Prev)
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{
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OpInfo = AcpiPsGetOpcodeInfo (Search->Common.AmlOpcode);
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if (!(OpInfo->Flags & AML_FIELD))
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{
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/* Below root scope, append scope name */
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if (DoDot)
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{
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/* Append dot */
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AcpiOsPrintf (".");
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}
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if (OpInfo->Flags & AML_CREATE)
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{
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if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP)
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{
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NamePath = AcpiPsGetArg (Op, 3);
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}
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else
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{
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NamePath = AcpiPsGetArg (Op, 2);
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}
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if ((NamePath) &&
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(NamePath->Common.Value.String))
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{
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AcpiDmDumpName (NamePath->Common.Value.String);
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}
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}
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else
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{
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Name = AcpiPsGetName (Search);
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AcpiDmDumpName ((char *) &Name);
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}
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DoDot = TRUE;
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}
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}
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Prev = Search;
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDmValidateName
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*
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* PARAMETERS: Name - 4 character ACPI name
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*
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* RETURN: None
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*
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* DESCRIPTION: Lookup the name
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*
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******************************************************************************/
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void
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AcpiDmValidateName (
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char *Name,
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ACPI_PARSE_OBJECT *Op)
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{
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if ((!Name) ||
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(!Op->Common.Parent))
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{
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return;
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}
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if (!Op->Common.Node)
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{
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AcpiOsPrintf (
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" /**** Name not found or not accessible from this scope ****/ ");
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}
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ACPI_PARSE_OBJECT *TargetOp;
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if ((!Name) ||
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(!Op->Common.Parent))
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{
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return;
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}
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TargetOp = AcpiPsFind (Op, Name, 0, 0);
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if (!TargetOp)
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{
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/*
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* Didn't find the name in the parse tree. This may be
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* a problem, or it may simply be one of the predefined names
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* (such as _OS_). Rather than worry about looking up all
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* the predefined names, just display the name as given
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*/
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AcpiOsPrintf (
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" /**** Name not found or not accessible from this scope ****/ ");
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}
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}
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#endif
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#endif
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