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freebsd-dev/sys/contrib/dev/acpica/dbxface.c
Mike Smith 0065eb1222 Import the 20010518 Intel ACPI CA release. Note that Intel's directory layout 
keeps changing, so to reduce repository thrash everything has been moved into
a single directory.  (repo copy involved)
2001-05-29 19:52:40 +00:00

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/*******************************************************************************
*
* Module Name: dbxface - AML Debugger external interfaces
* $Revision: 37 $
*
******************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp.
* All rights reserved.
*
* 2. License
*
* 2.1. This is your license from Intel Corp. under its intellectual property
* rights. You may have additional license terms from the party that provided
* you this software, covering your right to use that party's intellectual
* property rights.
*
* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
* copy of the source code appearing in this file ("Covered Code") an
* irrevocable, perpetual, worldwide license under Intel's copyrights in the
* base code distributed originally by Intel ("Original Intel Code") to copy,
* make derivatives, distribute, use and display any portion of the Covered
* Code in any form, with the right to sublicense such rights; and
*
* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
* license (with the right to sublicense), under only those claims of Intel
* patents that are infringed by the Original Intel Code, to make, use, sell,
* offer to sell, and import the Covered Code and derivative works thereof
* solely to the minimum extent necessary to exercise the above copyright
* license, and in no event shall the patent license extend to any additions
* to or modifications of the Original Intel Code. No other license or right
* is granted directly or by implication, estoppel or otherwise;
*
* The above copyright and patent license is granted only if the following
* conditions are met:
*
* 3. Conditions
*
* 3.1. Redistribution of Source with Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification with rights to further distribute source must include
* the above Copyright Notice, the above License, this list of Conditions,
* and the following Disclaimer and Export Compliance provision. In addition,
* Licensee must cause all Covered Code to which Licensee contributes to
* contain a file documenting the changes Licensee made to create that Covered
* Code and the date of any change. Licensee must include in that file the
* documentation of any changes made by any predecessor Licensee. Licensee
* must include a prominent statement that the modification is derived,
* directly or indirectly, from Original Intel Code.
*
* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification without rights to further distribute source must
* include the following Disclaimer and Export Compliance provision in the
* documentation and/or other materials provided with distribution. In
* addition, Licensee may not authorize further sublicense of source of any
* portion of the Covered Code, and must include terms to the effect that the
* license from Licensee to its licensee is limited to the intellectual
* property embodied in the software Licensee provides to its licensee, and
* not to intellectual property embodied in modifications its licensee may
* make.
*
* 3.3. Redistribution of Executable. Redistribution in executable form of any
* substantial portion of the Covered Code or modification must reproduce the
* above Copyright Notice, and the following Disclaimer and Export Compliance
* provision in the documentation and/or other materials provided with the
* distribution.
*
* 3.4. Intel retains all right, title, and interest in and to the Original
* Intel Code.
*
* 3.5. Neither the name Intel nor any other trademark owned or controlled by
* Intel shall be used in advertising or otherwise to promote the sale, use or
* other dealings in products derived from or relating to the Covered Code
* without prior written authorization from Intel.
*
* 4. Disclaimer and Export Compliance
*
* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
* PARTICULAR PURPOSE.
*
* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
* LIMITED REMEDY.
*
* 4.3. Licensee shall not export, either directly or indirectly, any of this
* software or system incorporating such software without first obtaining any
* required license or other approval from the U. S. Department of Commerce or
* any other agency or department of the United States Government. In the
* event Licensee exports any such software from the United States or
* re-exports any such software from a foreign destination, Licensee shall
* ensure that the distribution and export/re-export of the software is in
* compliance with all laws, regulations, orders, or other restrictions of the
* U.S. Export Administration Regulations. Licensee agrees that neither it nor
* any of its subsidiaries will export/re-export any technical data, process,
* software, or service, directly or indirectly, to any country for which the
* United States government or any agency thereof requires an export license,
* other governmental approval, or letter of assurance, without first obtaining
* such license, approval or letter.
*
*****************************************************************************/
#include "acpi.h"
#include "acparser.h"
#include "amlcode.h"
#include "acnamesp.h"
#include "acparser.h"
#include "acevents.h"
#include "acinterp.h"
#include "acdebug.h"
#ifdef ENABLE_DEBUGGER
#define _COMPONENT ACPI_DEBUGGER
MODULE_NAME ("dbxface")
/*******************************************************************************
*
* FUNCTION: AcpiDbSingleStep
*
* PARAMETERS: WalkState - Current walk
* Op - Current executing op
* OpType - Type of the current AML Opcode
*
* RETURN: Status
*
* DESCRIPTION: Called just before execution of an AML opcode.
*
******************************************************************************/
ACPI_STATUS
AcpiDbSingleStep (
ACPI_WALK_STATE *WalkState,
ACPI_PARSE_OBJECT *Op,
UINT8 OpType)
{
ACPI_PARSE_OBJECT *Next;
ACPI_STATUS Status = AE_OK;
UINT32 OriginalDebugLevel;
ACPI_PARSE_OBJECT *DisplayOp;
/* Is there a breakpoint set? */
if (WalkState->MethodBreakpoint)
{
/* Check if the breakpoint has been reached or passed */
if (WalkState->MethodBreakpoint <= Op->AmlOffset)
{
/* Hit the breakpoint, resume single step, reset breakpoint */
AcpiOsPrintf ("***Break*** at AML offset %X\n", Op->AmlOffset);
AcpiGbl_CmSingleStep = TRUE;
AcpiGbl_StepToNextCall = FALSE;
WalkState->MethodBreakpoint = 0;
}
}
/*
* Check if this is an opcode that we are interested in --
* namely, opcodes that have arguments
*/
if (Op->Opcode == AML_INT_NAMEDFIELD_OP)
{
return (AE_OK);
}
switch (OpType)
{
case OPTYPE_UNDEFINED:
case OPTYPE_CONSTANT: /* argument type only */
case OPTYPE_LITERAL: /* argument type only */
case OPTYPE_DATA_TERM: /* argument type only */
case OPTYPE_LOCAL_VARIABLE: /* argument type only */
case OPTYPE_METHOD_ARGUMENT: /* argument type only */
return (AE_OK);
break;
case OPTYPE_NAMED_OBJECT:
switch (Op->Opcode)
{
case AML_INT_NAMEPATH_OP:
return (AE_OK);
break;
}
}
/*
* Under certain debug conditions, display this opcode and its operands
*/
if ((OutputToFile) ||
(AcpiGbl_CmSingleStep) ||
(AcpiDbgLevel & TRACE_PARSE))
{
if ((OutputToFile) ||
(AcpiDbgLevel & TRACE_PARSE))
{
AcpiOsPrintf ("\n[AmlDebug] Next AML Opcode to execute:\n");
}
/*
* Display this op (and only this op - zero out the NEXT field temporarily,
* and disable parser trace output for the duration of the display because
* we don't want the extraneous debug output)
*/
OriginalDebugLevel = AcpiDbgLevel;
AcpiDbgLevel &= ~(TRACE_PARSE | TRACE_FUNCTIONS);
Next = Op->Next;
Op->Next = NULL;
DisplayOp = Op;
if (Op->Parent)
{
if ((Op->Parent->Opcode == AML_IF_OP) ||
(Op->Parent->Opcode == AML_WHILE_OP))
{
DisplayOp = Op->Parent;
}
}
/* Now we can display it */
AcpiDbDisplayOp (WalkState, DisplayOp, ACPI_UINT32_MAX);
if ((Op->Opcode == AML_IF_OP) ||
(Op->Opcode == AML_WHILE_OP))
{
if (WalkState->ControlState->Common.Value)
{
AcpiOsPrintf ("Predicate was TRUE, executed block\n");
}
else
{
AcpiOsPrintf ("Predicate is FALSE, skipping block\n");
}
}
else if (Op->Opcode == AML_ELSE_OP)
{
/* TBD */
}
/* Restore everything */
Op->Next = Next;
AcpiOsPrintf ("\n");
AcpiDbgLevel = OriginalDebugLevel;
}
/* If we are not single stepping, just continue executing the method */
if (!AcpiGbl_CmSingleStep)
{
return (AE_OK);
}
/*
* If we are executing a step-to-call command,
* Check if this is a method call.
*/
if (AcpiGbl_StepToNextCall)
{
if (Op->Opcode != AML_INT_METHODCALL_OP)
{
/* Not a method call, just keep executing */
return (AE_OK);
}
/* Found a method call, stop executing */
AcpiGbl_StepToNextCall = FALSE;
}
/*
* If the next opcode is a method call, we will "step over" it
* by default.
*/
if (Op->Opcode == AML_INT_METHODCALL_OP)
{
AcpiGbl_CmSingleStep = FALSE; /* No more single step while executing called method */
/* Set the breakpoint on the call, it will stop execution as soon as we return */
/* TBD: [Future] don't kill the user breakpoint! */
WalkState->MethodBreakpoint = /* Op->AmlOffset + */ 1; /* Must be non-zero! */
}
/* TBD: [Investigate] what are the namespace locking issues here */
/* AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); */
/* Go into the command loop and await next user command */
AcpiGbl_MethodExecuting = TRUE;
Status = AE_CTRL_TRUE;
while (Status == AE_CTRL_TRUE)
{
if (AcpiGbl_DebuggerConfiguration == DEBUGGER_MULTI_THREADED)
{
/* Handshake with the front-end that gets user command lines */
AcpiUtReleaseMutex (ACPI_MTX_DEBUG_CMD_COMPLETE);
AcpiUtAcquireMutex (ACPI_MTX_DEBUG_CMD_READY);
}
else
{
/* Single threaded, we must get a command line ourselves */
/* Force output to console until a command is entered */
AcpiDbSetOutputDestination (DB_CONSOLE_OUTPUT);
/* Different prompt if method is executing */
if (!AcpiGbl_MethodExecuting)
{
AcpiOsPrintf ("%1c ", DB_COMMAND_PROMPT);
}
else
{
AcpiOsPrintf ("%1c ", DB_EXECUTE_PROMPT);
}
/* Get the user input line */
AcpiOsGetLine (LineBuf);
}
Status = AcpiDbCommandDispatch (LineBuf, WalkState, Op);
}
/* AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); */
/* User commands complete, continue execution of the interrupted method */
return (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiDbInitialize
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: Init and start debugger
*
******************************************************************************/
int
AcpiDbInitialize (void)
{
/* Init globals */
Buffer = AcpiOsAllocate (BUFFER_SIZE);
/* Initial scope is the root */
ScopeBuf [0] = '\\';
ScopeBuf [1] = 0;
/*
* If configured for multi-thread support, the debug executor runs in
* a separate thread so that the front end can be in another address
* space, environment, or even another machine.
*/
if (AcpiGbl_DebuggerConfiguration & DEBUGGER_MULTI_THREADED)
{
/* These were created with one unit, grab it */
AcpiUtAcquireMutex (ACPI_MTX_DEBUG_CMD_COMPLETE);
AcpiUtAcquireMutex (ACPI_MTX_DEBUG_CMD_READY);
/* Create the debug execution thread to execute commands */
AcpiOsQueueForExecution (0, AcpiDbExecuteThread, NULL);
}
if (!opt_verbose)
{
INDENT_STRING = " ";
opt_disasm = TRUE;
opt_stats = FALSE;
}
return (0);
}
#endif /* ENABLE_DEBUGGER */
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