433 lines
14 KiB
C
433 lines
14 KiB
C
/*******************************************************************************
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*
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* Module Name: dbxface - AML Debugger external interfaces
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* $Revision: 34 $
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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, 2000, 2001, 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 "acparser.h"
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#include "amlcode.h"
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#include "acnamesp.h"
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#include "acparser.h"
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#include "acevents.h"
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#include "acinterp.h"
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#include "acdebug.h"
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#ifdef ENABLE_DEBUGGER
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#define _COMPONENT DEBUGGER
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MODULE_NAME ("dbxface")
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/*******************************************************************************
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*
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* FUNCTION: AcpiDbSingleStep
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*
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* PARAMETERS: WalkState - Current walk
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* Op - Current executing op
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* OpType - Type of the current AML Opcode
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*
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* RETURN: Status
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*
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* DESCRIPTION: Called just before execution of an AML opcode.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiDbSingleStep (
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ACPI_WALK_STATE *WalkState,
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ACPI_PARSE_OBJECT *Op,
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UINT8 OpType)
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{
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ACPI_PARSE_OBJECT *Next;
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ACPI_STATUS Status = AE_OK;
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UINT32 OriginalDebugLevel;
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ACPI_PARSE_OBJECT *DisplayOp;
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/* Is there a breakpoint set? */
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if (WalkState->MethodBreakpoint)
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{
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/* Check if the breakpoint has been reached or passed */
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if (WalkState->MethodBreakpoint <= Op->AmlOffset)
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{
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/* Hit the breakpoint, resume single step, reset breakpoint */
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AcpiOsPrintf ("***Break*** at AML offset %X\n", Op->AmlOffset);
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AcpiGbl_CmSingleStep = TRUE;
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AcpiGbl_StepToNextCall = FALSE;
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WalkState->MethodBreakpoint = 0;
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}
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}
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/*
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* Check if this is an opcode that we are interested in --
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* namely, opcodes that have arguments
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*/
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if (Op->Opcode == AML_NAMEDFIELD_OP)
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{
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return (AE_OK);
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}
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switch (OpType)
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{
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case OPTYPE_UNDEFINED:
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case OPTYPE_CONSTANT: /* argument type only */
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case OPTYPE_LITERAL: /* argument type only */
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case OPTYPE_DATA_TERM: /* argument type only */
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case OPTYPE_LOCAL_VARIABLE: /* argument type only */
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case OPTYPE_METHOD_ARGUMENT: /* argument type only */
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return (AE_OK);
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break;
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case OPTYPE_NAMED_OBJECT:
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switch (Op->Opcode)
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{
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case AML_NAMEPATH_OP:
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return (AE_OK);
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break;
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}
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}
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/*
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* Under certain debug conditions, display this opcode and its operands
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*/
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if ((OutputToFile) ||
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(AcpiGbl_CmSingleStep) ||
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(AcpiDbgLevel & TRACE_PARSE))
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{
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if ((OutputToFile) ||
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(AcpiDbgLevel & TRACE_PARSE))
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{
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AcpiOsPrintf ("\n[AmlDebug] Next AML Opcode to execute:\n");
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}
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/*
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* Display this op (and only this op - zero out the NEXT field temporarily,
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* and disable parser trace output for the duration of the display because
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* we don't want the extraneous debug output)
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*/
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OriginalDebugLevel = AcpiDbgLevel;
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AcpiDbgLevel &= ~(TRACE_PARSE | TRACE_FUNCTIONS);
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Next = Op->Next;
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Op->Next = NULL;
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DisplayOp = Op;
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if (Op->Parent)
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{
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if ((Op->Parent->Opcode == AML_IF_OP) ||
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(Op->Parent->Opcode == AML_WHILE_OP))
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{
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DisplayOp = Op->Parent;
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}
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}
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/* Now we can display it */
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AcpiDbDisplayOp (WalkState, DisplayOp, ACPI_UINT32_MAX);
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if ((Op->Opcode == AML_IF_OP) ||
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(Op->Opcode == AML_WHILE_OP))
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{
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if (WalkState->ControlState->Common.Value)
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{
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AcpiOsPrintf ("Predicate was TRUE, executed block\n");
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}
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else
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{
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AcpiOsPrintf ("Predicate is FALSE, skipping block\n");
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}
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}
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else if (Op->Opcode == AML_ELSE_OP)
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{
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/* TBD */
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}
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/* Restore everything */
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Op->Next = Next;
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AcpiOsPrintf ("\n");
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AcpiDbgLevel = OriginalDebugLevel;
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}
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/* If we are not single stepping, just continue executing the method */
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if (!AcpiGbl_CmSingleStep)
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{
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return (AE_OK);
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}
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/*
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* If we are executing a step-to-call command,
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* Check if this is a method call.
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*/
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if (AcpiGbl_StepToNextCall)
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{
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if (Op->Opcode != AML_METHODCALL_OP)
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{
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/* Not a method call, just keep executing */
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return (AE_OK);
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}
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/* Found a method call, stop executing */
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AcpiGbl_StepToNextCall = FALSE;
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}
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/*
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* If the next opcode is a method call, we will "step over" it
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* by default.
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*/
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if (Op->Opcode == AML_METHODCALL_OP)
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{
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AcpiGbl_CmSingleStep = FALSE; /* No more single step while executing called method */
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/* Set the breakpoint on the call, it will stop execution as soon as we return */
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/* TBD: [Future] don't kill the user breakpoint! */
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WalkState->MethodBreakpoint = /* Op->AmlOffset + */ 1; /* Must be non-zero! */
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}
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/* TBD: [Investigate] what are the namespace locking issues here */
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/* AcpiCmReleaseMutex (ACPI_MTX_NAMESPACE); */
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/* Go into the command loop and await next user command */
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AcpiGbl_MethodExecuting = TRUE;
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Status = AE_CTRL_TRUE;
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while (Status == AE_CTRL_TRUE)
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{
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if (AcpiGbl_DebuggerConfiguration == DEBUGGER_MULTI_THREADED)
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{
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/* Handshake with the front-end that gets user command lines */
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AcpiCmReleaseMutex (ACPI_MTX_DEBUG_CMD_COMPLETE);
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AcpiCmAcquireMutex (ACPI_MTX_DEBUG_CMD_READY);
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}
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else
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{
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/* Single threaded, we must get a command line ourselves */
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/* Force output to console until a command is entered */
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AcpiDbSetOutputDestination (DB_CONSOLE_OUTPUT);
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/* Different prompt if method is executing */
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if (!AcpiGbl_MethodExecuting)
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{
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AcpiOsPrintf ("%1c ", DB_COMMAND_PROMPT);
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}
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else
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{
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AcpiOsPrintf ("%1c ", DB_EXECUTE_PROMPT);
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}
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/* Get the user input line */
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AcpiOsGetLine (LineBuf);
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}
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Status = AcpiDbCommandDispatch (LineBuf, WalkState, Op);
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}
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/* AcpiCmAcquireMutex (ACPI_MTX_NAMESPACE); */
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/* User commands complete, continue execution of the interrupted method */
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return (Status);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDbInitialize
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*
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* PARAMETERS: None
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*
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* RETURN: Status
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*
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* DESCRIPTION: Init and start debugger
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*
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******************************************************************************/
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int
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AcpiDbInitialize (void)
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{
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/* Init globals */
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Buffer = AcpiOsAllocate (BUFFER_SIZE);
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/* Initial scope is the root */
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ScopeBuf [0] = '\\';
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ScopeBuf [1] = 0;
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/*
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* If configured for multi-thread support, the debug executor runs in
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* a separate thread so that the front end can be in another address
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* space, environment, or even another machine.
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*/
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if (AcpiGbl_DebuggerConfiguration & DEBUGGER_MULTI_THREADED)
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{
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/* These were created with one unit, grab it */
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AcpiCmAcquireMutex (ACPI_MTX_DEBUG_CMD_COMPLETE);
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AcpiCmAcquireMutex (ACPI_MTX_DEBUG_CMD_READY);
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/* Create the debug execution thread to execute commands */
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AcpiOsQueueForExecution (0, AcpiDbExecuteThread, NULL);
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}
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if (!opt_verbose)
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{
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INDENT_STRING = " ";
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opt_disasm = TRUE;
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opt_stats = FALSE;
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}
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return (0);
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}
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#endif /* ENABLE_DEBUGGER */
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