1 /******************************************************************************
3 * Module Name: aslparseop - Parse op create/allocate/cache interfaces
5 *****************************************************************************/
7 /******************************************************************************
11 * Some or all of this work - Copyright (c) 1999 - 2017, Intel Corp.
12 * All rights reserved.
16 * 2.1. This is your license from Intel Corp. under its intellectual property
17 * rights. You may have additional license terms from the party that provided
18 * you this software, covering your right to use that party's intellectual
21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22 * copy of the source code appearing in this file ("Covered Code") an
23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24 * base code distributed originally by Intel ("Original Intel Code") to copy,
25 * make derivatives, distribute, use and display any portion of the Covered
26 * Code in any form, with the right to sublicense such rights; and
28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29 * license (with the right to sublicense), under only those claims of Intel
30 * patents that are infringed by the Original Intel Code, to make, use, sell,
31 * offer to sell, and import the Covered Code and derivative works thereof
32 * solely to the minimum extent necessary to exercise the above copyright
33 * license, and in no event shall the patent license extend to any additions
34 * to or modifications of the Original Intel Code. No other license or right
35 * is granted directly or by implication, estoppel or otherwise;
37 * The above copyright and patent license is granted only if the following
42 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43 * Redistribution of source code of any substantial portion of the Covered
44 * Code or modification with rights to further distribute source must include
45 * the above Copyright Notice, the above License, this list of Conditions,
46 * and the following Disclaimer and Export Compliance provision. In addition,
47 * Licensee must cause all Covered Code to which Licensee contributes to
48 * contain a file documenting the changes Licensee made to create that Covered
49 * Code and the date of any change. Licensee must include in that file the
50 * documentation of any changes made by any predecessor Licensee. Licensee
51 * must include a prominent statement that the modification is derived,
52 * directly or indirectly, from Original Intel Code.
54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55 * Redistribution of source code of any substantial portion of the Covered
56 * Code or modification without rights to further distribute source must
57 * include the following Disclaimer and Export Compliance provision in the
58 * documentation and/or other materials provided with distribution. In
59 * addition, Licensee may not authorize further sublicense of source of any
60 * portion of the Covered Code, and must include terms to the effect that the
61 * license from Licensee to its licensee is limited to the intellectual
62 * property embodied in the software Licensee provides to its licensee, and
63 * not to intellectual property embodied in modifications its licensee may
66 * 3.3. Redistribution of Executable. Redistribution in executable form of any
67 * substantial portion of the Covered Code or modification must reproduce the
68 * above Copyright Notice, and the following Disclaimer and Export Compliance
69 * provision in the documentation and/or other materials provided with the
72 * 3.4. Intel retains all right, title, and interest in and to the Original
75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76 * Intel shall be used in advertising or otherwise to promote the sale, use or
77 * other dealings in products derived from or relating to the Covered Code
78 * without prior written authorization from Intel.
80 * 4. Disclaimer and Export Compliance
82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
99 * 4.3. Licensee shall not export, either directly or indirectly, any of this
100 * software or system incorporating such software without first obtaining any
101 * required license or other approval from the U. S. Department of Commerce or
102 * any other agency or department of the United States Government. In the
103 * event Licensee exports any such software from the United States or
104 * re-exports any such software from a foreign destination, Licensee shall
105 * ensure that the distribution and export/re-export of the software is in
106 * compliance with all laws, regulations, orders, or other restrictions of the
107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108 * any of its subsidiaries will export/re-export any technical data, process,
109 * software, or service, directly or indirectly, to any country for which the
110 * United States government or any agency thereof requires an export license,
111 * other governmental approval, or letter of assurance, without first obtaining
112 * such license, approval or letter.
114 *****************************************************************************
116 * Alternatively, you may choose to be licensed under the terms of the
119 * Redistribution and use in source and binary forms, with or without
120 * modification, are permitted provided that the following conditions
122 * 1. Redistributions of source code must retain the above copyright
123 * notice, this list of conditions, and the following disclaimer,
124 * without modification.
125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
126 * substantially similar to the "NO WARRANTY" disclaimer below
127 * ("Disclaimer") and any redistribution must be conditioned upon
128 * including a substantially similar Disclaimer requirement for further
129 * binary redistribution.
130 * 3. Neither the names of the above-listed copyright holders nor the names
131 * of any contributors may be used to endorse or promote products derived
132 * from this software without specific prior written permission.
134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
146 * Alternatively, you may choose to be licensed under the terms of the
147 * GNU General Public License ("GPL") version 2 as published by the Free
148 * Software Foundation.
150 *****************************************************************************/
152 #include <contrib/dev/acpica/compiler/aslcompiler.h>
153 #include "aslcompiler.y.h"
154 #include <contrib/dev/acpica/include/acapps.h>
155 #include <contrib/dev/acpica/include/acconvert.h>
157 #define _COMPONENT ACPI_COMPILER
158 ACPI_MODULE_NAME ("aslparseop")
161 /*******************************************************************************
163 * FUNCTION: TrCreateOp
165 * PARAMETERS: ParseOpcode - Opcode to be assigned to the op
166 * NumChildren - Number of children to follow
167 * ... - A list of child ops to link to the new
168 * op. NumChildren long.
170 * RETURN: Pointer to the new op. Aborts on allocation failure
172 * DESCRIPTION: Create a new parse op and link together a list of child
173 * ops underneath the new op.
175 ******************************************************************************/
183 ACPI_PARSE_OBJECT *Op;
184 ACPI_PARSE_OBJECT *Child;
185 ACPI_PARSE_OBJECT *PrevChild;
191 va_start (ap, NumChildren);
193 /* Allocate one new op */
195 Op = TrAllocateOp (ParseOpcode);
197 DbgPrint (ASL_PARSE_OUTPUT,
198 "\nCreateOp Ln/Col %u/%u NewParent %p Child %u Op %s ",
199 Op->Asl.LineNumber, Op->Asl.Column, Op,
200 NumChildren, UtGetOpName(ParseOpcode));
202 /* Some extra debug output based on the parse opcode */
206 case PARSEOP_ASL_CODE:
208 Gbl_ParseTreeRoot = Op;
209 Op->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
210 DbgPrint (ASL_PARSE_OUTPUT, "ASLCODE (Tree Completed)->");
213 case PARSEOP_DEFINITION_BLOCK:
215 DbgPrint (ASL_PARSE_OUTPUT, "DEFINITION_BLOCK (Tree Completed)->");
218 case PARSEOP_OPERATIONREGION:
220 DbgPrint (ASL_PARSE_OUTPUT, "OPREGION->");
225 DbgPrint (ASL_PARSE_OUTPUT, "OR->");
230 /* Nothing to do for other opcodes */
235 /* Link the new op to its children */
239 for (i = 0; i < NumChildren; i++)
241 /* Get the next child */
243 Child = va_arg (ap, ACPI_PARSE_OBJECT *);
244 DbgPrint (ASL_PARSE_OUTPUT, "%p, ", Child);
247 * If child is NULL, this means that an optional argument
248 * was omitted. We must create a placeholder with a special
249 * opcode (DEFAULT_ARG) so that the code generator will know
250 * that it must emit the correct default for this argument
254 Child = TrAllocateOp (PARSEOP_DEFAULT_ARG);
257 /* Link first child to parent */
262 Op->Asl.Child = Child;
265 * For the ASL-/ASL+ converter: if the ParseOp is a Connection,
266 * External, Offset or AccessAs, it means that the comments in the
267 * FirstChild belongs to their parent due to the parsing order in
268 * the .y files. To correct this, take the comments in the
269 * FirstChild place it in the parent. This also means that
270 * legitimate comments for the child gets put to the parent.
272 if (AcpiGbl_CaptureComments &&
273 ((ParseOpcode == PARSEOP_CONNECTION) ||
274 (ParseOpcode == PARSEOP_EXTERNAL) ||
275 (ParseOpcode == PARSEOP_OFFSET) ||
276 (ParseOpcode == PARSEOP_ACCESSAS)))
278 Op->Asl.CommentList = Child->Asl.CommentList;
279 Op->Asl.EndBlkComment = Child->Asl.EndBlkComment;
280 Op->Asl.InlineComment = Child->Asl.InlineComment;
281 Op->Asl.FileChanged = Child->Asl.FileChanged;
283 Child->Asl.CommentList = NULL;
284 Child->Asl.EndBlkComment = NULL;
285 Child->Asl.InlineComment = NULL;
286 Child->Asl.FileChanged = FALSE;
289 * These do not need to be "passed off". They can be copied
290 * because the code for these opcodes should be printed in the
293 Op->Asl.Filename = Child->Asl.Filename;
294 Op->Asl.ParentFilename = Child->Asl.ParentFilename;
298 /* Point all children to parent */
300 Child->Asl.Parent = Op;
302 /* Link children in a peer list */
306 PrevChild->Asl.Next = Child;
309 /* Get the comment from last child in the resource template call */
311 if (AcpiGbl_CaptureComments &&
312 (Op->Asl.ParseOpcode == PARSEOP_RESOURCETEMPLATE))
314 CvDbgPrint ("Transferred current comment list to this op.\n");
315 Op->Asl.CommentList = Child->Asl.CommentList;
316 Child->Asl.CommentList = NULL;
318 Op->Asl.InlineComment = Child->Asl.InlineComment;
319 Child->Asl.InlineComment = NULL;
323 * This child might be a list, point all ops in the list
326 while (Child->Asl.Next)
328 Child = Child->Asl.Next;
329 Child->Asl.Parent = Op;
336 DbgPrint (ASL_PARSE_OUTPUT, "\n");
341 /*******************************************************************************
343 * FUNCTION: TrCreateLeafOp
345 * PARAMETERS: ParseOpcode - New opcode to be assigned to the op
347 * RETURN: Pointer to the new op. Aborts on allocation failure
349 * DESCRIPTION: Create a simple leaf op (no children or peers, and no value
350 * assigned to the op)
352 ******************************************************************************/
358 ACPI_PARSE_OBJECT *Op;
361 Op = TrAllocateOp (ParseOpcode);
363 DbgPrint (ASL_PARSE_OUTPUT,
364 "\nCreateLeafOp Ln/Col %u/%u NewOp %p Op %s\n\n",
365 Op->Asl.LineNumber, Op->Asl.Column, Op, UtGetOpName (ParseOpcode));
371 /*******************************************************************************
373 * FUNCTION: TrCreateValuedLeafOp
375 * PARAMETERS: ParseOpcode - New opcode to be assigned to the op
376 * Value - Value to be assigned to the op
378 * RETURN: Pointer to the new op. Aborts on allocation failure
380 * DESCRIPTION: Create a leaf op (no children or peers) with a value
383 ******************************************************************************/
386 TrCreateValuedLeafOp (
390 ACPI_PARSE_OBJECT *Op;
393 Op = TrAllocateOp (ParseOpcode);
394 Op->Asl.Value.Integer = Value;
396 DbgPrint (ASL_PARSE_OUTPUT,
397 "\nCreateValuedLeafOp Ln/Col %u/%u NewOp %p "
398 "Op %s Value %8.8X%8.8X ",
399 Op->Asl.LineNumber, Op->Asl.Column, Op, UtGetOpName(ParseOpcode),
400 ACPI_FORMAT_UINT64 (Value));
404 case PARSEOP_STRING_LITERAL:
406 DbgPrint (ASL_PARSE_OUTPUT, "STRING->%s", Value);
409 case PARSEOP_NAMESEG:
411 DbgPrint (ASL_PARSE_OUTPUT, "NAMESEG->%s", Value);
414 case PARSEOP_NAMESTRING:
416 DbgPrint (ASL_PARSE_OUTPUT, "NAMESTRING->%s", Value);
421 DbgPrint (ASL_PARSE_OUTPUT, "EISAID->%s", Value);
426 DbgPrint (ASL_PARSE_OUTPUT, "METHOD");
429 case PARSEOP_INTEGER:
431 DbgPrint (ASL_PARSE_OUTPUT, "INTEGER->%8.8X%8.8X",
432 ACPI_FORMAT_UINT64 (Value));
439 DbgPrint (ASL_PARSE_OUTPUT, "\n\n");
444 /*******************************************************************************
446 * FUNCTION: TrCreateTargetOp
448 * PARAMETERS: OriginalOp - Op to be copied
450 * RETURN: Pointer to the new op. Aborts on allocation failure
452 * DESCRIPTION: Copy an existing op (and subtree). Used in ASL+ (C-style)
453 * expressions where the target is the same as one of the
454 * operands. A new op and subtree must be created from the
455 * original so that the parse tree can be linked properly.
457 * NOTE: This code is specific to target operands that are the last
458 * operand in an ASL/AML operator. Meaning that the top-level
459 * parse Op in a possible subtree has a NULL Next pointer.
460 * This simplifies the recursion.
463 * DeRefOf (Local1) += 32
465 * This gets converted to:
466 * Add (DeRefOf (Local1), 32, DeRefOf (Local1))
468 * Each DeRefOf has a single child, Local1. Even more complex
469 * subtrees can be created via the Index and DeRefOf operators.
471 ******************************************************************************/
475 ACPI_PARSE_OBJECT *OriginalOp,
476 ACPI_PARSE_OBJECT *ParentOp)
478 ACPI_PARSE_OBJECT *Op;
486 Op = UtParseOpCacheCalloc ();
488 /* Copy the pertinent values (omit link pointer fields) */
490 Op->Asl.Value = OriginalOp->Asl.Value;
491 Op->Asl.Filename = OriginalOp->Asl.Filename;
492 Op->Asl.LineNumber = OriginalOp->Asl.LineNumber;
493 Op->Asl.LogicalLineNumber = OriginalOp->Asl.LogicalLineNumber;
494 Op->Asl.LogicalByteOffset = OriginalOp->Asl.LogicalByteOffset;
495 Op->Asl.Column = OriginalOp->Asl.Column;
496 Op->Asl.Flags = OriginalOp->Asl.Flags;
497 Op->Asl.CompileFlags = OriginalOp->Asl.CompileFlags;
498 Op->Asl.AmlOpcode = OriginalOp->Asl.AmlOpcode;
499 Op->Asl.ParseOpcode = OriginalOp->Asl.ParseOpcode;
500 Op->Asl.Parent = ParentOp;
502 UtSetParseOpName (Op);
504 /* Copy a possible subtree below this op */
506 if (OriginalOp->Asl.Child)
508 Op->Asl.Child = TrCreateTargetOp (OriginalOp->Asl.Child, Op);
511 if (OriginalOp->Asl.Next) /* Null for top-level op */
513 Op->Asl.Next = TrCreateTargetOp (OriginalOp->Asl.Next, ParentOp);
520 /*******************************************************************************
522 * FUNCTION: TrCreateAssignmentOp
524 * PARAMETERS: Target - Assignment target
525 * Source - Assignment source
527 * RETURN: Pointer to the new op. Aborts on allocation failure
529 * DESCRIPTION: Implements the C-style '=' operator. It changes the parse
530 * tree if possible to utilize the last argument of the math
531 * operators which is a target operand -- thus saving invocation
532 * of and additional Store() operator. An optimization.
534 ******************************************************************************/
537 TrCreateAssignmentOp (
538 ACPI_PARSE_OBJECT *Target,
539 ACPI_PARSE_OBJECT *Source)
541 ACPI_PARSE_OBJECT *TargetOp;
542 ACPI_PARSE_OBJECT *SourceOp1;
543 ACPI_PARSE_OBJECT *SourceOp2;
544 ACPI_PARSE_OBJECT *Operator;
547 DbgPrint (ASL_PARSE_OUTPUT,
548 "\nTrCreateAssignmentOp Line [%u to %u] Source %s Target %s\n",
549 Source->Asl.LineNumber, Source->Asl.EndLine,
550 UtGetOpName (Source->Asl.ParseOpcode),
551 UtGetOpName (Target->Asl.ParseOpcode));
553 TrSetOpFlags (Target, OP_IS_TARGET);
555 switch (Source->Asl.ParseOpcode)
558 * Only these operators can be optimized because they have
566 case PARSEOP_MULTIPLY:
569 case PARSEOP_SHIFTLEFT:
570 case PARSEOP_SHIFTRIGHT:
571 case PARSEOP_SUBTRACT:
576 /* Otherwise, just create a normal Store operator */
583 * Transform the parse tree such that the target is moved to the
584 * last operand of the operator
586 SourceOp1 = Source->Asl.Child;
587 SourceOp2 = SourceOp1->Asl.Next;
589 /* NOT only has one operand, but has a target */
591 if (Source->Asl.ParseOpcode == PARSEOP_NOT)
593 SourceOp2 = SourceOp1;
596 /* DIVIDE has an extra target operand (remainder) */
598 if (Source->Asl.ParseOpcode == PARSEOP_DIVIDE)
600 SourceOp2 = SourceOp2->Asl.Next;
603 TargetOp = SourceOp2->Asl.Next;
606 * Can't perform this optimization if there already is a target
607 * for the operator (ZERO is a "no target" placeholder).
609 if (TargetOp->Asl.ParseOpcode != PARSEOP_ZERO)
614 /* Link in the target as the final operand */
616 SourceOp2->Asl.Next = Target;
617 Target->Asl.Parent = Source;
623 Operator = TrAllocateOp (PARSEOP_STORE);
624 TrLinkOpChildren (Operator, 2, Source, Target);
626 /* Set the appropriate line numbers for the new op */
628 Operator->Asl.LineNumber = Target->Asl.LineNumber;
629 Operator->Asl.LogicalLineNumber = Target->Asl.LogicalLineNumber;
630 Operator->Asl.LogicalByteOffset = Target->Asl.LogicalByteOffset;
631 Operator->Asl.Column = Target->Asl.Column;
637 /*******************************************************************************
639 * FUNCTION: TrCreateNullTargetOp
643 * RETURN: Pointer to the new op. Aborts on allocation failure
645 * DESCRIPTION: Create a "null" target op. This is defined by the ACPI
646 * specification to be a zero AML opcode, and indicates that
647 * no target has been specified for the parent operation
649 ******************************************************************************/
652 TrCreateNullTargetOp (
655 ACPI_PARSE_OBJECT *Op;
658 Op = TrAllocateOp (PARSEOP_ZERO);
659 Op->Asl.CompileFlags |= (OP_IS_TARGET | OP_COMPILE_TIME_CONST);
661 DbgPrint (ASL_PARSE_OUTPUT,
662 "\nCreateNullTargetOp Ln/Col %u/%u NewOp %p Op %s\n",
663 Op->Asl.LineNumber, Op->Asl.Column, Op,
664 UtGetOpName (Op->Asl.ParseOpcode));
670 /*******************************************************************************
672 * FUNCTION: TrCreateConstantLeafOp
674 * PARAMETERS: ParseOpcode - The constant opcode
676 * RETURN: Pointer to the new op. Aborts on allocation failure
678 * DESCRIPTION: Create a leaf op (no children or peers) for one of the
679 * special constants - __LINE__, __FILE__, and __DATE__.
681 * Note: The fullimplemenation of __METHOD__ cannot happen here because we
682 * don't have a full parse tree at this time and cannot find the parent
683 * control method. __METHOD__ must be implemented later, after the parse
684 * tree has been fully constructed.
686 ******************************************************************************/
689 TrCreateConstantLeafOp (
692 ACPI_PARSE_OBJECT *Op = NULL;
694 char *StaticTimeString;
701 case PARSEOP___LINE__:
703 Op = TrAllocateOp (PARSEOP_INTEGER);
704 Op->Asl.Value.Integer = Op->Asl.LineNumber;
707 case PARSEOP___METHOD__:
709 /* Will become a string literal later */
711 Op = TrAllocateOp (PARSEOP___METHOD__);
712 Op->Asl.Value.String = NULL;
715 case PARSEOP___PATH__:
717 Op = TrAllocateOp (PARSEOP_STRING_LITERAL);
719 /* Op.Asl.Filename contains the full pathname to the file */
721 Op->Asl.Value.String = Op->Asl.Filename;
724 case PARSEOP___FILE__:
726 Op = TrAllocateOp (PARSEOP_STRING_LITERAL);
728 /* Get the simple filename from the full path */
730 FlSplitInputPathname (Op->Asl.Filename, NULL, &Filename);
731 Op->Asl.Value.String = Filename;
734 case PARSEOP___DATE__:
736 Op = TrAllocateOp (PARSEOP_STRING_LITERAL);
738 /* Get a copy of the current time */
740 CurrentTime = time (NULL);
741 StaticTimeString = ctime (&CurrentTime);
742 TimeString = UtLocalCalloc (strlen (StaticTimeString) + 1);
743 strcpy (TimeString, StaticTimeString);
745 TimeString[strlen(TimeString) -1] = 0; /* Remove trailing newline */
746 Op->Asl.Value.String = TimeString;
749 default: /* This would be an internal error */
754 DbgPrint (ASL_PARSE_OUTPUT,
755 "\nCreateConstantLeafOp Ln/Col %u/%u NewOp %p "
756 "Op %s Value %8.8X%8.8X \n",
757 Op->Asl.LineNumber, Op->Asl.Column, Op, UtGetOpName (ParseOpcode),
758 ACPI_FORMAT_UINT64 (Op->Asl.Value.Integer));
764 /*******************************************************************************
766 * FUNCTION: TrAllocateOp
768 * PARAMETERS: ParseOpcode - Opcode to be assigned to the op
770 * RETURN: New parse op. Aborts on allocation failure
772 * DESCRIPTION: Allocate and initialize a new parse op for the parse tree
774 ******************************************************************************/
780 ACPI_PARSE_OBJECT *Op;
781 ACPI_PARSE_OBJECT *LatestOp;
784 Op = UtParseOpCacheCalloc ();
786 Op->Asl.ParseOpcode = (UINT16) ParseOpcode;
787 Op->Asl.Filename = Gbl_Files[ASL_FILE_INPUT].Filename;
788 Op->Asl.LineNumber = Gbl_CurrentLineNumber;
789 Op->Asl.LogicalLineNumber = Gbl_LogicalLineNumber;
790 Op->Asl.LogicalByteOffset = Gbl_CurrentLineOffset;
791 Op->Asl.Column = Gbl_CurrentColumn;
793 UtSetParseOpName (Op);
795 /* The following is for capturing comments */
797 if (AcpiGbl_CaptureComments)
799 LatestOp = Gbl_CommentState.LatestParseOp;
800 Op->Asl.InlineComment = NULL;
801 Op->Asl.EndNodeComment = NULL;
802 Op->Asl.CommentList = NULL;
803 Op->Asl.FileChanged = FALSE;
806 * Check to see if the file name has changed before resetting the
810 (ParseOpcode != PARSEOP_INCLUDE) &&
811 (ParseOpcode != PARSEOP_INCLUDE_END) &&
812 strcmp (LatestOp->Asl.Filename, Op->Asl.Filename))
814 CvDbgPrint ("latest op: %s\n", LatestOp->Asl.ParseOpName);
815 Op->Asl.FileChanged = TRUE;
816 if (Gbl_IncludeFileStack)
818 Op->Asl.ParentFilename = Gbl_IncludeFileStack->Filename;
822 Op->Asl.ParentFilename = NULL;
826 Gbl_CommentState.LatestParseOp = Op;
827 CvDbgPrint ("TrAllocateOp=Set latest parse op to this op.\n");
828 CvDbgPrint (" Op->Asl.ParseOpName = %s\n",
829 Gbl_CommentState.LatestParseOp->Asl.ParseOpName);
830 CvDbgPrint (" Op->Asl.ParseOpcode = 0x%x\n", ParseOpcode);
832 if (Op->Asl.FileChanged)
834 CvDbgPrint(" file has been changed!\n");
838 * if this parse op's syntax uses () and {} (i.e. Package(1){0x00}) then
839 * set a flag in the comment state. This facilitates paring comments for
840 * these types of opcodes.
842 if ((CvParseOpBlockType(Op) == (BLOCK_PAREN | BLOCK_BRACE)) &&
843 (ParseOpcode != PARSEOP_DEFINITION_BLOCK))
845 CvDbgPrint ("Parsing paren/Brace op now!\n");
846 Gbl_CommentState.ParsingParenBraceNode = Op;
849 if (Gbl_CommentListHead)
851 CvDbgPrint ("Transferring...\n");
852 Op->Asl.CommentList = Gbl_CommentListHead;
853 Gbl_CommentListHead = NULL;
854 Gbl_CommentListTail = NULL;
855 CvDbgPrint (" Transferred current comment list to this op.\n");
856 CvDbgPrint (" %s\n", Op->Asl.CommentList->Comment);
859 if (Gbl_InlineCommentBuffer)
861 Op->Asl.InlineComment = Gbl_InlineCommentBuffer;
862 Gbl_InlineCommentBuffer = NULL;
863 CvDbgPrint ("Transferred current inline comment list to this op.\n");
871 /*******************************************************************************
873 * FUNCTION: TrPrintOpFlags
875 * PARAMETERS: Flags - Flags word to be decoded
876 * OutputLevel - Debug output level: ASL_TREE_OUTPUT etc.
880 * DESCRIPTION: Decode a flags word to text. Displays all flags that are set.
882 ******************************************************************************/
893 for (i = 0; i < ACPI_NUM_OP_FLAGS; i++)
897 DbgPrint (OutputLevel, " %s", Gbl_OpFlagNames[i]);