diff options
Diffstat (limited to 'sys/contrib/dev/acpica/dswexec.c')
| -rw-r--r-- | sys/contrib/dev/acpica/dswexec.c | 833 |
1 files changed, 833 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/dswexec.c b/sys/contrib/dev/acpica/dswexec.c new file mode 100644 index 0000000..0eef999 --- /dev/null +++ b/sys/contrib/dev/acpica/dswexec.c @@ -0,0 +1,833 @@ +/****************************************************************************** + * + * Module Name: dswexec - Dispatcher method execution callbacks; + * dispatch to interpreter. + * $Revision: 1.134 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999 - 2007, 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. + * + *****************************************************************************/ + +#define __DSWEXEC_C__ + +#include <contrib/dev/acpica/acpi.h> +#include <contrib/dev/acpica/acparser.h> +#include <contrib/dev/acpica/amlcode.h> +#include <contrib/dev/acpica/acdispat.h> +#include <contrib/dev/acpica/acinterp.h> +#include <contrib/dev/acpica/acnamesp.h> +#include <contrib/dev/acpica/acdebug.h> + + +#define _COMPONENT ACPI_DISPATCHER + ACPI_MODULE_NAME ("dswexec") + +/* + * Dispatch table for opcode classes + */ +static ACPI_EXECUTE_OP AcpiGbl_OpTypeDispatch [] = +{ + AcpiExOpcode_0A_0T_1R, + AcpiExOpcode_1A_0T_0R, + AcpiExOpcode_1A_0T_1R, + AcpiExOpcode_1A_1T_0R, + AcpiExOpcode_1A_1T_1R, + AcpiExOpcode_2A_0T_0R, + AcpiExOpcode_2A_0T_1R, + AcpiExOpcode_2A_1T_1R, + AcpiExOpcode_2A_2T_1R, + AcpiExOpcode_3A_0T_0R, + AcpiExOpcode_3A_1T_1R, + AcpiExOpcode_6A_0T_1R +}; + + +/***************************************************************************** + * + * FUNCTION: AcpiDsGetPredicateValue + * + * PARAMETERS: WalkState - Current state of the parse tree walk + * ResultObj - if non-zero, pop result from result stack + * + * RETURN: Status + * + * DESCRIPTION: Get the result of a predicate evaluation + * + ****************************************************************************/ + +ACPI_STATUS +AcpiDsGetPredicateValue ( + ACPI_WALK_STATE *WalkState, + ACPI_OPERAND_OBJECT *ResultObj) +{ + ACPI_STATUS Status = AE_OK; + ACPI_OPERAND_OBJECT *ObjDesc; + ACPI_OPERAND_OBJECT *LocalObjDesc = NULL; + + + ACPI_FUNCTION_TRACE_PTR (DsGetPredicateValue, WalkState); + + + WalkState->ControlState->Common.State = 0; + + if (ResultObj) + { + Status = AcpiDsResultPop (&ObjDesc, WalkState); + if (ACPI_FAILURE (Status)) + { + ACPI_EXCEPTION ((AE_INFO, Status, + "Could not get result from predicate evaluation")); + + return_ACPI_STATUS (Status); + } + } + else + { + Status = AcpiDsCreateOperand (WalkState, WalkState->Op, 0); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + Status = AcpiExResolveToValue (&WalkState->Operands [0], WalkState); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + ObjDesc = WalkState->Operands [0]; + } + + if (!ObjDesc) + { + ACPI_ERROR ((AE_INFO, + "No predicate ObjDesc=%p State=%p", + ObjDesc, WalkState)); + + return_ACPI_STATUS (AE_AML_NO_OPERAND); + } + + /* + * Result of predicate evaluation must be an Integer + * object. Implicitly convert the argument if necessary. + */ + Status = AcpiExConvertToInteger (ObjDesc, &LocalObjDesc, 16); + if (ACPI_FAILURE (Status)) + { + goto Cleanup; + } + + if (ACPI_GET_OBJECT_TYPE (LocalObjDesc) != ACPI_TYPE_INTEGER) + { + ACPI_ERROR ((AE_INFO, + "Bad predicate (not an integer) ObjDesc=%p State=%p Type=%X", + ObjDesc, WalkState, ACPI_GET_OBJECT_TYPE (ObjDesc))); + + Status = AE_AML_OPERAND_TYPE; + goto Cleanup; + } + + /* Truncate the predicate to 32-bits if necessary */ + + AcpiExTruncateFor32bitTable (LocalObjDesc); + + /* + * Save the result of the predicate evaluation on + * the control stack + */ + if (LocalObjDesc->Integer.Value) + { + WalkState->ControlState->Common.Value = TRUE; + } + else + { + /* + * Predicate is FALSE, we will just toss the + * rest of the package + */ + WalkState->ControlState->Common.Value = FALSE; + Status = AE_CTRL_FALSE; + } + + +Cleanup: + + ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Completed a predicate eval=%X Op=%p\n", + WalkState->ControlState->Common.Value, WalkState->Op)); + + /* Break to debugger to display result */ + + ACPI_DEBUGGER_EXEC (AcpiDbDisplayResultObject (LocalObjDesc, WalkState)); + + /* + * Delete the predicate result object (we know that + * we don't need it anymore) + */ + if (LocalObjDesc != ObjDesc) + { + AcpiUtRemoveReference (LocalObjDesc); + } + AcpiUtRemoveReference (ObjDesc); + + WalkState->ControlState->Common.State = ACPI_CONTROL_NORMAL; + return_ACPI_STATUS (Status); +} + + +/***************************************************************************** + * + * FUNCTION: AcpiDsExecBeginOp + * + * PARAMETERS: WalkState - Current state of the parse tree walk + * OutOp - Where to return op if a new one is created + * + * RETURN: Status + * + * DESCRIPTION: Descending callback used during the execution of control + * methods. This is where most operators and operands are + * dispatched to the interpreter. + * + ****************************************************************************/ + +ACPI_STATUS +AcpiDsExecBeginOp ( + ACPI_WALK_STATE *WalkState, + ACPI_PARSE_OBJECT **OutOp) +{ + ACPI_PARSE_OBJECT *Op; + ACPI_STATUS Status = AE_OK; + UINT32 OpcodeClass; + + + ACPI_FUNCTION_TRACE_PTR (DsExecBeginOp, WalkState); + + + Op = WalkState->Op; + if (!Op) + { + Status = AcpiDsLoad2BeginOp (WalkState, OutOp); + if (ACPI_FAILURE (Status)) + { + goto ErrorExit; + } + + Op = *OutOp; + WalkState->Op = Op; + WalkState->Opcode = Op->Common.AmlOpcode; + WalkState->OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); + + if (AcpiNsOpensScope (WalkState->OpInfo->ObjectType)) + { + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "(%s) Popping scope for Op %p\n", + AcpiUtGetTypeName (WalkState->OpInfo->ObjectType), Op)); + + Status = AcpiDsScopeStackPop (WalkState); + if (ACPI_FAILURE (Status)) + { + goto ErrorExit; + } + } + } + + if (Op == WalkState->Origin) + { + if (OutOp) + { + *OutOp = Op; + } + + return_ACPI_STATUS (AE_OK); + } + + /* + * If the previous opcode was a conditional, this opcode + * must be the beginning of the associated predicate. + * Save this knowledge in the current scope descriptor + */ + if ((WalkState->ControlState) && + (WalkState->ControlState->Common.State == + ACPI_CONTROL_CONDITIONAL_EXECUTING)) + { + ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Exec predicate Op=%p State=%p\n", + Op, WalkState)); + + WalkState->ControlState->Common.State = ACPI_CONTROL_PREDICATE_EXECUTING; + + /* Save start of predicate */ + + WalkState->ControlState->Control.PredicateOp = Op; + } + + + OpcodeClass = WalkState->OpInfo->Class; + + /* We want to send namepaths to the load code */ + + if (Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP) + { + OpcodeClass = AML_CLASS_NAMED_OBJECT; + } + + /* + * Handle the opcode based upon the opcode type + */ + switch (OpcodeClass) + { + case AML_CLASS_CONTROL: + + Status = AcpiDsExecBeginControlOp (WalkState, Op); + break; + + + case AML_CLASS_NAMED_OBJECT: + + if (WalkState->WalkType & ACPI_WALK_METHOD) + { + /* + * Found a named object declaration during method execution; + * we must enter this object into the namespace. The created + * object is temporary and will be deleted upon completion of + * the execution of this method. + */ + Status = AcpiDsLoad2BeginOp (WalkState, NULL); + } + + break; + + + case AML_CLASS_EXECUTE: + case AML_CLASS_CREATE: + + break; + + + default: + break; + } + + /* Nothing to do here during method execution */ + + return_ACPI_STATUS (Status); + + +ErrorExit: + Status = AcpiDsMethodError (Status, WalkState); + return_ACPI_STATUS (Status); +} + + +/***************************************************************************** + * + * FUNCTION: AcpiDsExecEndOp + * + * PARAMETERS: WalkState - Current state of the parse tree walk + * + * RETURN: Status + * + * DESCRIPTION: Ascending callback used during the execution of control + * methods. The only thing we really need to do here is to + * notice the beginning of IF, ELSE, and WHILE blocks. + * + ****************************************************************************/ + +ACPI_STATUS +AcpiDsExecEndOp ( + ACPI_WALK_STATE *WalkState) +{ + ACPI_PARSE_OBJECT *Op; + ACPI_STATUS Status = AE_OK; + UINT32 OpType; + UINT32 OpClass; + ACPI_PARSE_OBJECT *NextOp; + ACPI_PARSE_OBJECT *FirstArg; + + + ACPI_FUNCTION_TRACE_PTR (DsExecEndOp, WalkState); + + + Op = WalkState->Op; + OpType = WalkState->OpInfo->Type; + OpClass = WalkState->OpInfo->Class; + + if (OpClass == AML_CLASS_UNKNOWN) + { + ACPI_ERROR ((AE_INFO, "Unknown opcode %X", Op->Common.AmlOpcode)); + return_ACPI_STATUS (AE_NOT_IMPLEMENTED); + } + + FirstArg = Op->Common.Value.Arg; + + /* Init the walk state */ + + WalkState->NumOperands = 0; + WalkState->OperandIndex = 0; + WalkState->ReturnDesc = NULL; + WalkState->ResultObj = NULL; + + /* Call debugger for single step support (DEBUG build only) */ + + ACPI_DEBUGGER_EXEC (Status = AcpiDbSingleStep (WalkState, Op, OpClass)); + ACPI_DEBUGGER_EXEC (if (ACPI_FAILURE (Status)) {return_ACPI_STATUS (Status);}); + + /* Decode the Opcode Class */ + + switch (OpClass) + { + case AML_CLASS_ARGUMENT: /* Constants, literals, etc. */ + + if (WalkState->Opcode == AML_INT_NAMEPATH_OP) + { + Status = AcpiDsEvaluateNamePath (WalkState); + if (ACPI_FAILURE (Status)) + { + goto Cleanup; + } + } + break; + + + case AML_CLASS_EXECUTE: /* Most operators with arguments */ + + /* Build resolved operand stack */ + + Status = AcpiDsCreateOperands (WalkState, FirstArg); + if (ACPI_FAILURE (Status)) + { + goto Cleanup; + } + + /* + * All opcodes require operand resolution, with the only exceptions + * being the ObjectType and SizeOf operators. + */ + if (!(WalkState->OpInfo->Flags & AML_NO_OPERAND_RESOLVE)) + { + /* Resolve all operands */ + + Status = AcpiExResolveOperands (WalkState->Opcode, + &(WalkState->Operands [WalkState->NumOperands -1]), + WalkState); + if (ACPI_SUCCESS (Status)) + { + ACPI_DUMP_OPERANDS (ACPI_WALK_OPERANDS, ACPI_IMODE_EXECUTE, + AcpiPsGetOpcodeName (WalkState->Opcode), + WalkState->NumOperands, "after ExResolveOperands"); + } + } + + if (ACPI_SUCCESS (Status)) + { + /* + * Dispatch the request to the appropriate interpreter handler + * routine. There is one routine per opcode "type" based upon the + * number of opcode arguments and return type. + */ + Status = AcpiGbl_OpTypeDispatch[OpType] (WalkState); + } + else + { + /* + * Treat constructs of the form "Store(LocalX,LocalX)" as noops when the + * Local is uninitialized. + */ + if ((Status == AE_AML_UNINITIALIZED_LOCAL) && + (WalkState->Opcode == AML_STORE_OP) && + (WalkState->Operands[0]->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) && + (WalkState->Operands[1]->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) && + (WalkState->Operands[0]->Reference.Opcode == + WalkState->Operands[1]->Reference.Opcode) && + (WalkState->Operands[0]->Reference.Offset == + WalkState->Operands[1]->Reference.Offset)) + { + Status = AE_OK; + } + else + { + ACPI_EXCEPTION ((AE_INFO, Status, + "While resolving operands for [%s]", + AcpiPsGetOpcodeName (WalkState->Opcode))); + } + } + + /* Always delete the argument objects and clear the operand stack */ + + AcpiDsClearOperands (WalkState); + + /* + * If a result object was returned from above, push it on the + * current result stack + */ + if (ACPI_SUCCESS (Status) && + WalkState->ResultObj) + { + Status = AcpiDsResultPush (WalkState->ResultObj, WalkState); + } + break; + + + default: + + switch (OpType) + { + case AML_TYPE_CONTROL: /* Type 1 opcode, IF/ELSE/WHILE/NOOP */ + + /* 1 Operand, 0 ExternalResult, 0 InternalResult */ + + Status = AcpiDsExecEndControlOp (WalkState, Op); + + break; + + + case AML_TYPE_METHOD_CALL: + + /* + * If the method is referenced from within a package + * declaration, it is not a invocation of the method, just + * a reference to it. + */ + if ((Op->Asl.Parent) && + ((Op->Asl.Parent->Asl.AmlOpcode == AML_PACKAGE_OP) || + (Op->Asl.Parent->Asl.AmlOpcode == AML_VAR_PACKAGE_OP))) + { + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "Method Reference in a Package, Op=%p\n", Op)); + + Op->Common.Node = (ACPI_NAMESPACE_NODE *) Op->Asl.Value.Arg->Asl.Node->Object; + AcpiUtAddReference (Op->Asl.Value.Arg->Asl.Node->Object); + return_ACPI_STATUS (AE_OK); + } + + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Method invocation, Op=%p\n", Op)); + + /* + * (AML_METHODCALL) Op->Asl.Value.Arg->Asl.Node contains + * the method Node pointer + */ + /* NextOp points to the op that holds the method name */ + + NextOp = FirstArg; + + /* NextOp points to first argument op */ + + NextOp = NextOp->Common.Next; + + /* + * Get the method's arguments and put them on the operand stack + */ + Status = AcpiDsCreateOperands (WalkState, NextOp); + if (ACPI_FAILURE (Status)) + { + break; + } + + /* + * Since the operands will be passed to another control method, + * we must resolve all local references here (Local variables, + * arguments to *this* method, etc.) + */ + Status = AcpiDsResolveOperands (WalkState); + if (ACPI_FAILURE (Status)) + { + /* On error, clear all resolved operands */ + + AcpiDsClearOperands (WalkState); + break; + } + + /* + * Tell the walk loop to preempt this running method and + * execute the new method + */ + Status = AE_CTRL_TRANSFER; + + /* + * Return now; we don't want to disturb anything, + * especially the operand count! + */ + return_ACPI_STATUS (Status); + + + case AML_TYPE_CREATE_FIELD: + + ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, + "Executing CreateField Buffer/Index Op=%p\n", Op)); + + Status = AcpiDsLoad2EndOp (WalkState); + if (ACPI_FAILURE (Status)) + { + break; + } + + Status = AcpiDsEvalBufferFieldOperands (WalkState, Op); + break; + + + case AML_TYPE_CREATE_OBJECT: + + ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, + "Executing CreateObject (Buffer/Package) Op=%p\n", Op)); + + switch (Op->Common.Parent->Common.AmlOpcode) + { + case AML_NAME_OP: + + /* + * Put the Node on the object stack (Contains the ACPI Name + * of this object) + */ + WalkState->Operands[0] = (void *) Op->Common.Parent->Common.Node; + WalkState->NumOperands = 1; + + Status = AcpiDsCreateNode (WalkState, + Op->Common.Parent->Common.Node, + Op->Common.Parent); + if (ACPI_FAILURE (Status)) + { + break; + } + + /* Fall through */ + /*lint -fallthrough */ + + case AML_INT_EVAL_SUBTREE_OP: + + Status = AcpiDsEvalDataObjectOperands (WalkState, Op, + AcpiNsGetAttachedObject (Op->Common.Parent->Common.Node)); + break; + + default: + + Status = AcpiDsEvalDataObjectOperands (WalkState, Op, NULL); + break; + } + + /* + * If a result object was returned from above, push it on the + * current result stack + */ + if (WalkState->ResultObj) + { + Status = AcpiDsResultPush (WalkState->ResultObj, WalkState); + } + break; + + + case AML_TYPE_NAMED_FIELD: + case AML_TYPE_NAMED_COMPLEX: + case AML_TYPE_NAMED_SIMPLE: + case AML_TYPE_NAMED_NO_OBJ: + + Status = AcpiDsLoad2EndOp (WalkState); + if (ACPI_FAILURE (Status)) + { + break; + } + + if (Op->Common.AmlOpcode == AML_REGION_OP) + { + ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, + "Executing OpRegion Address/Length Op=%p\n", Op)); + + Status = AcpiDsEvalRegionOperands (WalkState, Op); + if (ACPI_FAILURE (Status)) + { + break; + } + } + break; + + + case AML_TYPE_UNDEFINED: + + ACPI_ERROR ((AE_INFO, + "Undefined opcode type Op=%p", Op)); + return_ACPI_STATUS (AE_NOT_IMPLEMENTED); + + + case AML_TYPE_BOGUS: + + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "Internal opcode=%X type Op=%p\n", + WalkState->Opcode, Op)); + break; + + + default: + + ACPI_ERROR ((AE_INFO, + "Unimplemented opcode, class=%X type=%X Opcode=%X Op=%p", + OpClass, OpType, Op->Common.AmlOpcode, Op)); + + Status = AE_NOT_IMPLEMENTED; + break; + } + } + + /* + * ACPI 2.0 support for 64-bit integers: Truncate numeric + * result value if we are executing from a 32-bit ACPI table + */ + AcpiExTruncateFor32bitTable (WalkState->ResultObj); + + /* + * Check if we just completed the evaluation of a + * conditional predicate + */ + if ((ACPI_SUCCESS (Status)) && + (WalkState->ControlState) && + (WalkState->ControlState->Common.State == + ACPI_CONTROL_PREDICATE_EXECUTING) && + (WalkState->ControlState->Control.PredicateOp == Op)) + { + Status = AcpiDsGetPredicateValue (WalkState, WalkState->ResultObj); + WalkState->ResultObj = NULL; + } + + +Cleanup: + + if (WalkState->ResultObj) + { + /* Break to debugger to display result */ + + ACPI_DEBUGGER_EXEC (AcpiDbDisplayResultObject (WalkState->ResultObj, + WalkState)); + + /* + * Delete the result op if and only if: + * Parent will not use the result -- such as any + * non-nested type2 op in a method (parent will be method) + */ + AcpiDsDeleteResultIfNotUsed (Op, WalkState->ResultObj, WalkState); + } + +#ifdef _UNDER_DEVELOPMENT + + if (WalkState->ParserState.Aml == WalkState->ParserState.AmlEnd) + { + AcpiDbMethodEnd (WalkState); + } +#endif + + /* Invoke exception handler on error */ + + if (ACPI_FAILURE (Status)) + { + Status = AcpiDsMethodError (Status, WalkState); + } + + /* Always clear the object stack */ + + WalkState->NumOperands = 0; + return_ACPI_STATUS (Status); +} + + |
