1 /******************************************************************************
3 * Module Name: dswexec - Dispatcher method execution callbacks;
4 * dispatch to interpreter.
7 *****************************************************************************/
9 /******************************************************************************
13 * Some or all of this work - Copyright (c) 1999 - 2004, Intel Corp.
14 * All rights reserved.
18 * 2.1. This is your license from Intel Corp. under its intellectual property
19 * rights. You may have additional license terms from the party that provided
20 * you this software, covering your right to use that party's intellectual
23 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
24 * copy of the source code appearing in this file ("Covered Code") an
25 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
26 * base code distributed originally by Intel ("Original Intel Code") to copy,
27 * make derivatives, distribute, use and display any portion of the Covered
28 * Code in any form, with the right to sublicense such rights; and
30 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
31 * license (with the right to sublicense), under only those claims of Intel
32 * patents that are infringed by the Original Intel Code, to make, use, sell,
33 * offer to sell, and import the Covered Code and derivative works thereof
34 * solely to the minimum extent necessary to exercise the above copyright
35 * license, and in no event shall the patent license extend to any additions
36 * to or modifications of the Original Intel Code. No other license or right
37 * is granted directly or by implication, estoppel or otherwise;
39 * The above copyright and patent license is granted only if the following
44 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
45 * Redistribution of source code of any substantial portion of the Covered
46 * Code or modification with rights to further distribute source must include
47 * the above Copyright Notice, the above License, this list of Conditions,
48 * and the following Disclaimer and Export Compliance provision. In addition,
49 * Licensee must cause all Covered Code to which Licensee contributes to
50 * contain a file documenting the changes Licensee made to create that Covered
51 * Code and the date of any change. Licensee must include in that file the
52 * documentation of any changes made by any predecessor Licensee. Licensee
53 * must include a prominent statement that the modification is derived,
54 * directly or indirectly, from Original Intel Code.
56 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
57 * Redistribution of source code of any substantial portion of the Covered
58 * Code or modification without rights to further distribute source must
59 * include the following Disclaimer and Export Compliance provision in the
60 * documentation and/or other materials provided with distribution. In
61 * addition, Licensee may not authorize further sublicense of source of any
62 * portion of the Covered Code, and must include terms to the effect that the
63 * license from Licensee to its licensee is limited to the intellectual
64 * property embodied in the software Licensee provides to its licensee, and
65 * not to intellectual property embodied in modifications its licensee may
68 * 3.3. Redistribution of Executable. Redistribution in executable form of any
69 * substantial portion of the Covered Code or modification must reproduce the
70 * above Copyright Notice, and the following Disclaimer and Export Compliance
71 * provision in the documentation and/or other materials provided with the
74 * 3.4. Intel retains all right, title, and interest in and to the Original
77 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
78 * Intel shall be used in advertising or otherwise to promote the sale, use or
79 * other dealings in products derived from or relating to the Covered Code
80 * without prior written authorization from Intel.
82 * 4. Disclaimer and Export Compliance
84 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
85 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
86 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
87 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
88 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
89 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
92 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
93 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
94 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
95 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
96 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
97 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
98 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
101 * 4.3. Licensee shall not export, either directly or indirectly, any of this
102 * software or system incorporating such software without first obtaining any
103 * required license or other approval from the U. S. Department of Commerce or
104 * any other agency or department of the United States Government. In the
105 * event Licensee exports any such software from the United States or
106 * re-exports any such software from a foreign destination, Licensee shall
107 * ensure that the distribution and export/re-export of the software is in
108 * compliance with all laws, regulations, orders, or other restrictions of the
109 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
110 * any of its subsidiaries will export/re-export any technical data, process,
111 * software, or service, directly or indirectly, to any country for which the
112 * United States government or any agency thereof requires an export license,
113 * other governmental approval, or letter of assurance, without first obtaining
114 * such license, approval or letter.
116 *****************************************************************************/
118 #define __DSWEXEC_C__
120 #include <contrib/dev/acpica/acpi.h>
121 #include <contrib/dev/acpica/acparser.h>
122 #include <contrib/dev/acpica/amlcode.h>
123 #include <contrib/dev/acpica/acdispat.h>
124 #include <contrib/dev/acpica/acinterp.h>
125 #include <contrib/dev/acpica/acnamesp.h>
126 #include <contrib/dev/acpica/acdebug.h>
127 #include <contrib/dev/acpica/acdisasm.h>
130 #define _COMPONENT ACPI_DISPATCHER
131 ACPI_MODULE_NAME ("dswexec")
134 * Dispatch table for opcode classes
136 static ACPI_EXECUTE_OP AcpiGbl_OpTypeDispatch [] = {
137 AcpiExOpcode_0A_0T_1R,
138 AcpiExOpcode_1A_0T_0R,
139 AcpiExOpcode_1A_0T_1R,
140 AcpiExOpcode_1A_1T_0R,
141 AcpiExOpcode_1A_1T_1R,
142 AcpiExOpcode_2A_0T_0R,
143 AcpiExOpcode_2A_0T_1R,
144 AcpiExOpcode_2A_1T_1R,
145 AcpiExOpcode_2A_2T_1R,
146 AcpiExOpcode_3A_0T_0R,
147 AcpiExOpcode_3A_1T_1R,
148 AcpiExOpcode_6A_0T_1R};
150 /*****************************************************************************
152 * FUNCTION: AcpiDsGetPredicateValue
154 * PARAMETERS: WalkState - Current state of the parse tree walk
158 * DESCRIPTION: Get the result of a predicate evaluation
160 ****************************************************************************/
163 AcpiDsGetPredicateValue (
164 ACPI_WALK_STATE *WalkState,
165 ACPI_OPERAND_OBJECT *ResultObj)
167 ACPI_STATUS Status = AE_OK;
168 ACPI_OPERAND_OBJECT *ObjDesc;
171 ACPI_FUNCTION_TRACE_PTR ("DsGetPredicateValue", WalkState);
174 WalkState->ControlState->Common.State = 0;
178 Status = AcpiDsResultPop (&ObjDesc, WalkState);
179 if (ACPI_FAILURE (Status))
181 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
182 "Could not get result from predicate evaluation, %s\n",
183 AcpiFormatException (Status)));
185 return_ACPI_STATUS (Status);
190 Status = AcpiDsCreateOperand (WalkState, WalkState->Op, 0);
191 if (ACPI_FAILURE (Status))
193 return_ACPI_STATUS (Status);
196 Status = AcpiExResolveToValue (&WalkState->Operands [0], WalkState);
197 if (ACPI_FAILURE (Status))
199 return_ACPI_STATUS (Status);
202 ObjDesc = WalkState->Operands [0];
207 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "No predicate ObjDesc=%p State=%p\n",
208 ObjDesc, WalkState));
210 return_ACPI_STATUS (AE_AML_NO_OPERAND);
214 * Result of predicate evaluation currently must
217 if (ACPI_GET_OBJECT_TYPE (ObjDesc) != ACPI_TYPE_INTEGER)
219 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
220 "Bad predicate (not a number) ObjDesc=%p State=%p Type=%X\n",
221 ObjDesc, WalkState, ACPI_GET_OBJECT_TYPE (ObjDesc)));
223 Status = AE_AML_OPERAND_TYPE;
227 /* Truncate the predicate to 32-bits if necessary */
229 AcpiExTruncateFor32bitTable (ObjDesc);
232 * Save the result of the predicate evaluation on
235 if (ObjDesc->Integer.Value)
237 WalkState->ControlState->Common.Value = TRUE;
242 * Predicate is FALSE, we will just toss the
243 * rest of the package
245 WalkState->ControlState->Common.Value = FALSE;
246 Status = AE_CTRL_FALSE;
252 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Completed a predicate eval=%X Op=%p\n",
253 WalkState->ControlState->Common.Value, WalkState->Op));
255 /* Break to debugger to display result */
257 ACPI_DEBUGGER_EXEC (AcpiDbDisplayResultObject (ObjDesc, WalkState));
260 * Delete the predicate result object (we know that
261 * we don't need it anymore)
263 AcpiUtRemoveReference (ObjDesc);
265 WalkState->ControlState->Common.State = ACPI_CONTROL_NORMAL;
266 return_ACPI_STATUS (Status);
270 /*****************************************************************************
272 * FUNCTION: AcpiDsExecBeginOp
274 * PARAMETERS: WalkState - Current state of the parse tree walk
275 * OutOp - Return op if a new one is created
279 * DESCRIPTION: Descending callback used during the execution of control
280 * methods. This is where most operators and operands are
281 * dispatched to the interpreter.
283 ****************************************************************************/
287 ACPI_WALK_STATE *WalkState,
288 ACPI_PARSE_OBJECT **OutOp)
290 ACPI_PARSE_OBJECT *Op;
291 ACPI_STATUS Status = AE_OK;
295 ACPI_FUNCTION_TRACE_PTR ("DsExecBeginOp", WalkState);
301 Status = AcpiDsLoad2BeginOp (WalkState, OutOp);
302 if (ACPI_FAILURE (Status))
304 return_ACPI_STATUS (Status);
309 WalkState->Opcode = Op->Common.AmlOpcode;
310 WalkState->OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
312 if (AcpiNsOpensScope (WalkState->OpInfo->ObjectType))
314 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s) Popping scope for Op %p\n",
315 AcpiUtGetTypeName (WalkState->OpInfo->ObjectType), Op));
317 Status = AcpiDsScopeStackPop (WalkState);
318 if (ACPI_FAILURE (Status))
320 return_ACPI_STATUS (Status);
325 if (Op == WalkState->Origin)
332 return_ACPI_STATUS (AE_OK);
336 * If the previous opcode was a conditional, this opcode
337 * must be the beginning of the associated predicate.
338 * Save this knowledge in the current scope descriptor
340 if ((WalkState->ControlState) &&
341 (WalkState->ControlState->Common.State ==
342 ACPI_CONTROL_CONDITIONAL_EXECUTING))
344 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Exec predicate Op=%p State=%p\n",
347 WalkState->ControlState->Common.State = ACPI_CONTROL_PREDICATE_EXECUTING;
349 /* Save start of predicate */
351 WalkState->ControlState->Control.PredicateOp = Op;
355 OpcodeClass = WalkState->OpInfo->Class;
357 /* We want to send namepaths to the load code */
359 if (Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP)
361 OpcodeClass = AML_CLASS_NAMED_OBJECT;
365 * Handle the opcode based upon the opcode type
369 case AML_CLASS_CONTROL:
371 Status = AcpiDsResultStackPush (WalkState);
372 if (ACPI_FAILURE (Status))
374 return_ACPI_STATUS (Status);
377 Status = AcpiDsExecBeginControlOp (WalkState, Op);
381 case AML_CLASS_NAMED_OBJECT:
383 if (WalkState->WalkType == ACPI_WALK_METHOD)
386 * Found a named object declaration during method
387 * execution; we must enter this object into the
388 * namespace. The created object is temporary and
389 * will be deleted upon completion of the execution
392 Status = AcpiDsLoad2BeginOp (WalkState, NULL);
395 if (Op->Common.AmlOpcode == AML_REGION_OP)
397 Status = AcpiDsResultStackPush (WalkState);
402 case AML_CLASS_EXECUTE:
403 case AML_CLASS_CREATE:
405 /* most operators with arguments */
406 /* Start a new result/operand state */
408 Status = AcpiDsResultStackPush (WalkState);
416 /* Nothing to do here during method execution */
418 return_ACPI_STATUS (Status);
422 /*****************************************************************************
424 * FUNCTION: AcpiDsExecEndOp
426 * PARAMETERS: WalkState - Current state of the parse tree walk
427 * Op - Op that has been just been completed in the
428 * walk; Arguments have now been evaluated.
432 * DESCRIPTION: Ascending callback used during the execution of control
433 * methods. The only thing we really need to do here is to
434 * notice the beginning of IF, ELSE, and WHILE blocks.
436 ****************************************************************************/
440 ACPI_WALK_STATE *WalkState)
442 ACPI_PARSE_OBJECT *Op;
443 ACPI_STATUS Status = AE_OK;
446 ACPI_PARSE_OBJECT *NextOp;
447 ACPI_PARSE_OBJECT *FirstArg;
450 ACPI_FUNCTION_TRACE_PTR ("DsExecEndOp", WalkState);
454 OpType = WalkState->OpInfo->Type;
455 OpClass = WalkState->OpInfo->Class;
457 if (OpClass == AML_CLASS_UNKNOWN)
459 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown opcode %X\n", Op->Common.AmlOpcode));
460 return_ACPI_STATUS (AE_NOT_IMPLEMENTED);
463 FirstArg = Op->Common.Value.Arg;
465 /* Init the walk state */
467 WalkState->NumOperands = 0;
468 WalkState->ReturnDesc = NULL;
469 WalkState->ResultObj = NULL;
471 /* Call debugger for single step support (DEBUG build only) */
473 ACPI_DEBUGGER_EXEC (Status = AcpiDbSingleStep (WalkState, Op, OpClass));
474 ACPI_DEBUGGER_EXEC (if (ACPI_FAILURE (Status)) {return_ACPI_STATUS (Status);});
476 /* Decode the Opcode Class */
480 case AML_CLASS_ARGUMENT: /* constants, literals, etc. -- do nothing */
484 case AML_CLASS_EXECUTE: /* most operators with arguments */
486 /* Build resolved operand stack */
488 Status = AcpiDsCreateOperands (WalkState, FirstArg);
489 if (ACPI_FAILURE (Status))
494 /* Done with this result state (Now that operand stack is built) */
496 Status = AcpiDsResultStackPop (WalkState);
497 if (ACPI_FAILURE (Status))
502 /* Resolve all operands */
504 Status = AcpiExResolveOperands (WalkState->Opcode,
505 &(WalkState->Operands [WalkState->NumOperands -1]),
507 if (ACPI_SUCCESS (Status))
509 ACPI_DUMP_OPERANDS (ACPI_WALK_OPERANDS, ACPI_IMODE_EXECUTE,
510 AcpiPsGetOpcodeName (WalkState->Opcode),
511 WalkState->NumOperands, "after ExResolveOperands");
514 * Dispatch the request to the appropriate interpreter handler
515 * routine. There is one routine per opcode "type" based upon the
516 * number of opcode arguments and return type.
518 Status = AcpiGbl_OpTypeDispatch[OpType] (WalkState);
523 * Treat constructs of the form "Store(LocalX,LocalX)" as noops when the
524 * Local is uninitialized.
526 if ((Status == AE_AML_UNINITIALIZED_LOCAL) &&
527 (WalkState->Opcode == AML_STORE_OP) &&
528 (WalkState->Operands[0]->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) &&
529 (WalkState->Operands[1]->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) &&
530 (WalkState->Operands[0]->Reference.Opcode ==
531 WalkState->Operands[1]->Reference.Opcode) &&
532 (WalkState->Operands[0]->Reference.Offset ==
533 WalkState->Operands[1]->Reference.Offset))
539 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
540 "[%s]: Could not resolve operands, %s\n",
541 AcpiPsGetOpcodeName (WalkState->Opcode),
542 AcpiFormatException (Status)));
546 /* Always delete the argument objects and clear the operand stack */
548 AcpiDsClearOperands (WalkState);
551 * If a result object was returned from above, push it on the
552 * current result stack
554 if (ACPI_SUCCESS (Status) &&
555 WalkState->ResultObj)
557 Status = AcpiDsResultPush (WalkState->ResultObj, WalkState);
567 case AML_TYPE_CONTROL: /* Type 1 opcode, IF/ELSE/WHILE/NOOP */
569 /* 1 Operand, 0 ExternalResult, 0 InternalResult */
571 Status = AcpiDsExecEndControlOp (WalkState, Op);
572 if (ACPI_FAILURE (Status))
577 Status = AcpiDsResultStackPop (WalkState);
581 case AML_TYPE_METHOD_CALL:
583 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Method invocation, Op=%p\n", Op));
586 * (AML_METHODCALL) Op->Value->Arg->Node contains
587 * the method Node pointer
589 /* NextOp points to the op that holds the method name */
593 /* NextOp points to first argument op */
595 NextOp = NextOp->Common.Next;
598 * Get the method's arguments and put them on the operand stack
600 Status = AcpiDsCreateOperands (WalkState, NextOp);
601 if (ACPI_FAILURE (Status))
607 * Since the operands will be passed to another control method,
608 * we must resolve all local references here (Local variables,
609 * arguments to *this* method, etc.)
611 Status = AcpiDsResolveOperands (WalkState);
612 if (ACPI_FAILURE (Status))
614 /* On error, clear all resolved operands */
616 AcpiDsClearOperands (WalkState);
621 * Tell the walk loop to preempt this running method and
622 * execute the new method
624 Status = AE_CTRL_TRANSFER;
627 * Return now; we don't want to disturb anything,
628 * especially the operand count!
630 return_ACPI_STATUS (Status);
633 case AML_TYPE_CREATE_FIELD:
635 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
636 "Executing CreateField Buffer/Index Op=%p\n", Op));
638 Status = AcpiDsLoad2EndOp (WalkState);
639 if (ACPI_FAILURE (Status))
644 Status = AcpiDsEvalBufferFieldOperands (WalkState, Op);
648 case AML_TYPE_CREATE_OBJECT:
650 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
651 "Executing CreateObject (Buffer/Package) Op=%p\n", Op));
653 switch (Op->Common.Parent->Common.AmlOpcode)
658 * Put the Node on the object stack (Contains the ACPI Name of
661 WalkState->Operands[0] = (void *) Op->Common.Parent->Common.Node;
662 WalkState->NumOperands = 1;
664 Status = AcpiDsCreateNode (WalkState, Op->Common.Parent->Common.Node, Op->Common.Parent);
665 if (ACPI_FAILURE (Status))
671 /*lint -fallthrough */
673 case AML_INT_EVAL_SUBTREE_OP:
675 Status = AcpiDsEvalDataObjectOperands (WalkState, Op,
676 AcpiNsGetAttachedObject (Op->Common.Parent->Common.Node));
681 Status = AcpiDsEvalDataObjectOperands (WalkState, Op, NULL);
686 * If a result object was returned from above, push it on the
687 * current result stack
689 if (ACPI_SUCCESS (Status) &&
690 WalkState->ResultObj)
692 Status = AcpiDsResultPush (WalkState->ResultObj, WalkState);
697 case AML_TYPE_NAMED_FIELD:
698 case AML_TYPE_NAMED_COMPLEX:
699 case AML_TYPE_NAMED_SIMPLE:
700 case AML_TYPE_NAMED_NO_OBJ:
702 Status = AcpiDsLoad2EndOp (WalkState);
703 if (ACPI_FAILURE (Status))
708 if (Op->Common.AmlOpcode == AML_REGION_OP)
710 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
711 "Executing OpRegion Address/Length Op=%p\n", Op));
713 Status = AcpiDsEvalRegionOperands (WalkState, Op);
714 if (ACPI_FAILURE (Status))
719 Status = AcpiDsResultStackPop (WalkState);
725 case AML_TYPE_UNDEFINED:
727 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Undefined opcode type Op=%p\n", Op));
728 return_ACPI_STATUS (AE_NOT_IMPLEMENTED);
733 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
734 "Internal opcode=%X type Op=%p\n",
735 WalkState->Opcode, Op));
741 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
742 "Unimplemented opcode, class=%X type=%X Opcode=%X Op=%p\n",
743 OpClass, OpType, Op->Common.AmlOpcode, Op));
745 Status = AE_NOT_IMPLEMENTED;
751 * ACPI 2.0 support for 64-bit integers: Truncate numeric
752 * result value if we are executing from a 32-bit ACPI table
754 AcpiExTruncateFor32bitTable (WalkState->ResultObj);
757 * Check if we just completed the evaluation of a
758 * conditional predicate
761 if ((ACPI_SUCCESS (Status)) &&
762 (WalkState->ControlState) &&
763 (WalkState->ControlState->Common.State ==
764 ACPI_CONTROL_PREDICATE_EXECUTING) &&
765 (WalkState->ControlState->Control.PredicateOp == Op))
767 Status = AcpiDsGetPredicateValue (WalkState, WalkState->ResultObj);
768 WalkState->ResultObj = NULL;
774 /* Invoke exception handler on error */
776 if (ACPI_FAILURE (Status) &&
777 AcpiGbl_ExceptionHandler &&
778 !(Status & AE_CODE_CONTROL))
780 AcpiExExitInterpreter ();
781 Status = AcpiGbl_ExceptionHandler (Status,
782 WalkState->MethodNode->Name.Integer, WalkState->Opcode,
783 WalkState->AmlOffset, NULL);
784 AcpiExEnterInterpreter ();
787 if (WalkState->ResultObj)
789 /* Break to debugger to display result */
791 ACPI_DEBUGGER_EXEC (AcpiDbDisplayResultObject (WalkState->ResultObj, WalkState));
794 * Delete the result op if and only if:
795 * Parent will not use the result -- such as any
796 * non-nested type2 op in a method (parent will be method)
798 AcpiDsDeleteResultIfNotUsed (Op, WalkState->ResultObj, WalkState);
801 #ifdef _UNDER_DEVELOPMENT
803 if (WalkState->ParserState.Aml == WalkState->ParserState.AmlEnd)
805 AcpiDbMethodEnd (WalkState);
809 /* Always clear the object stack */
811 WalkState->NumOperands = 0;
813 #ifdef ACPI_DISASSEMBLER
815 /* On error, display method locals/args */
817 if (ACPI_FAILURE (Status))
819 AcpiDmDumpMethodInfo (Status, WalkState, Op);
823 return_ACPI_STATUS (Status);