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 /* Local prototypes */
163 static ACPI_PARSE_OBJECT *
168 /*******************************************************************************
170 * FUNCTION: TrCreateOp
172 * PARAMETERS: ParseOpcode - Opcode to be assigned to the op
173 * NumChildren - Number of children to follow
174 * ... - A list of child ops to link to the new
175 * op. NumChildren long.
177 * RETURN: Pointer to the new op. Aborts on allocation failure
179 * DESCRIPTION: Create a new parse op and link together a list of child
180 * ops underneath the new op.
182 ******************************************************************************/
190 ACPI_PARSE_OBJECT *Op;
191 ACPI_PARSE_OBJECT *Child;
192 ACPI_PARSE_OBJECT *PrevChild;
198 va_start (ap, NumChildren);
200 /* Allocate one new op */
202 Op = TrAllocateOp (ParseOpcode);
204 DbgPrint (ASL_PARSE_OUTPUT,
205 "\nCreateOp Ln/Col %u/%u NewParent %p Child %u Op %s ",
206 Op->Asl.LineNumber, Op->Asl.Column, Op,
207 NumChildren, UtGetOpName(ParseOpcode));
209 /* Some extra debug output based on the parse opcode */
213 case PARSEOP_ASL_CODE:
215 Gbl_ParseTreeRoot = Op;
216 Op->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
217 DbgPrint (ASL_PARSE_OUTPUT, "ASLCODE (Tree Completed)->");
220 case PARSEOP_DEFINITION_BLOCK:
222 DbgPrint (ASL_PARSE_OUTPUT, "DEFINITION_BLOCK (Tree Completed)->");
225 case PARSEOP_OPERATIONREGION:
227 DbgPrint (ASL_PARSE_OUTPUT, "OPREGION->");
232 DbgPrint (ASL_PARSE_OUTPUT, "OR->");
237 /* Nothing to do for other opcodes */
242 /* Link the new op to its children */
246 for (i = 0; i < NumChildren; i++)
248 /* Get the next child */
250 Child = va_arg (ap, ACPI_PARSE_OBJECT *);
251 DbgPrint (ASL_PARSE_OUTPUT, "%p, ", Child);
254 * If child is NULL, this means that an optional argument
255 * was omitted. We must create a placeholder with a special
256 * opcode (DEFAULT_ARG) so that the code generator will know
257 * that it must emit the correct default for this argument
261 Child = TrAllocateOp (PARSEOP_DEFAULT_ARG);
264 /* Link first child to parent */
269 Op->Asl.Child = Child;
272 * For the ASL-/ASL+ converter: if the ParseOp is a Connection,
273 * External, Offset or AccessAs, it means that the comments in the
274 * FirstChild belongs to their parent due to the parsing order in
275 * the .y files. To correct this, take the comments in the
276 * FirstChild place it in the parent. This also means that
277 * legitimate comments for the child gets put to the parent.
279 if (Gbl_CaptureComments &&
280 ((ParseOpcode == PARSEOP_CONNECTION) ||
281 (ParseOpcode == PARSEOP_EXTERNAL) ||
282 (ParseOpcode == PARSEOP_OFFSET) ||
283 (ParseOpcode == PARSEOP_ACCESSAS)))
285 Op->Asl.CommentList = Child->Asl.CommentList;
286 Op->Asl.EndBlkComment = Child->Asl.EndBlkComment;
287 Op->Asl.InlineComment = Child->Asl.InlineComment;
288 Op->Asl.FileChanged = Child->Asl.FileChanged;
290 Child->Asl.CommentList = NULL;
291 Child->Asl.EndBlkComment = NULL;
292 Child->Asl.InlineComment = NULL;
293 Child->Asl.FileChanged = FALSE;
296 * These do not need to be "passed off". They can be copied
297 * because the code for these opcodes should be printed in the
300 Op->Asl.Filename = Child->Asl.Filename;
301 Op->Asl.ParentFilename = Child->Asl.ParentFilename;
305 /* Point all children to parent */
307 Child->Asl.Parent = Op;
309 /* Link children in a peer list */
313 PrevChild->Asl.Next = Child;
316 /* Get the comment from last child in the resource template call */
318 if (Gbl_CaptureComments &&
319 (Op->Asl.ParseOpcode == PARSEOP_RESOURCETEMPLATE))
321 CvDbgPrint ("Transferred current comment list to this op.\n");
322 Op->Asl.CommentList = Child->Asl.CommentList;
323 Child->Asl.CommentList = NULL;
325 Op->Asl.InlineComment = Child->Asl.InlineComment;
326 Child->Asl.InlineComment = NULL;
330 * This child might be a list, point all ops in the list
333 while (Child->Asl.Next)
335 Child = Child->Asl.Next;
336 Child->Asl.Parent = Op;
343 DbgPrint (ASL_PARSE_OUTPUT, "\n");
348 /*******************************************************************************
350 * FUNCTION: TrCreateLeafOp
352 * PARAMETERS: ParseOpcode - New opcode to be assigned to the op
354 * RETURN: Pointer to the new op. Aborts on allocation failure
356 * DESCRIPTION: Create a simple leaf op (no children or peers, and no value
357 * assigned to the op)
359 ******************************************************************************/
365 ACPI_PARSE_OBJECT *Op;
368 Op = TrAllocateOp (ParseOpcode);
370 DbgPrint (ASL_PARSE_OUTPUT,
371 "\nCreateLeafOp Ln/Col %u/%u NewOp %p Op %s\n\n",
372 Op->Asl.LineNumber, Op->Asl.Column, Op, UtGetOpName (ParseOpcode));
378 /*******************************************************************************
380 * FUNCTION: TrCreateValuedLeafOp
382 * PARAMETERS: ParseOpcode - New opcode to be assigned to the op
383 * Value - Value to be assigned to the op
385 * RETURN: Pointer to the new op. Aborts on allocation failure
387 * DESCRIPTION: Create a leaf op (no children or peers) with a value
390 ******************************************************************************/
393 TrCreateValuedLeafOp (
397 ACPI_PARSE_OBJECT *Op;
400 Op = TrAllocateOp (ParseOpcode);
401 Op->Asl.Value.Integer = Value;
403 DbgPrint (ASL_PARSE_OUTPUT,
404 "\nCreateValuedLeafOp Ln/Col %u/%u NewOp %p "
405 "Op %s Value %8.8X%8.8X ",
406 Op->Asl.LineNumber, Op->Asl.Column, Op, UtGetOpName(ParseOpcode),
407 ACPI_FORMAT_UINT64 (Value));
411 case PARSEOP_STRING_LITERAL:
413 DbgPrint (ASL_PARSE_OUTPUT, "STRING->%s", Value);
416 case PARSEOP_NAMESEG:
418 DbgPrint (ASL_PARSE_OUTPUT, "NAMESEG->%s", Value);
421 case PARSEOP_NAMESTRING:
423 DbgPrint (ASL_PARSE_OUTPUT, "NAMESTRING->%s", Value);
428 DbgPrint (ASL_PARSE_OUTPUT, "EISAID->%s", Value);
433 DbgPrint (ASL_PARSE_OUTPUT, "METHOD");
436 case PARSEOP_INTEGER:
438 DbgPrint (ASL_PARSE_OUTPUT, "INTEGER->%8.8X%8.8X",
439 ACPI_FORMAT_UINT64 (Value));
446 DbgPrint (ASL_PARSE_OUTPUT, "\n\n");
451 /*******************************************************************************
453 * FUNCTION: TrCreateTargetOp
455 * PARAMETERS: OriginalOp - Op to be copied
457 * RETURN: Pointer to the new op. Aborts on allocation failure
459 * DESCRIPTION: Copy an existing op (and subtree). Used in ASL+ (C-style)
460 * expressions where the target is the same as one of the
461 * operands. A new op and subtree must be created from the
462 * original so that the parse tree can be linked properly.
464 * NOTE: This code is specific to target operands that are the last
465 * operand in an ASL/AML operator. Meaning that the top-level
466 * parse Op in a possible subtree has a NULL Next pointer.
467 * This simplifies the recursion.
470 * DeRefOf (Local1) += 32
472 * This gets converted to:
473 * Add (DeRefOf (Local1), 32, DeRefOf (Local1))
475 * Each DeRefOf has a single child, Local1. Even more complex
476 * subtrees can be created via the Index and DeRefOf operators.
478 ******************************************************************************/
482 ACPI_PARSE_OBJECT *OriginalOp,
483 ACPI_PARSE_OBJECT *ParentOp)
485 ACPI_PARSE_OBJECT *Op;
493 Op = TrGetOpFromCache ();
495 /* Copy the pertinent values (omit link pointer fields) */
497 Op->Asl.Value = OriginalOp->Asl.Value;
498 Op->Asl.Filename = OriginalOp->Asl.Filename;
499 Op->Asl.LineNumber = OriginalOp->Asl.LineNumber;
500 Op->Asl.LogicalLineNumber = OriginalOp->Asl.LogicalLineNumber;
501 Op->Asl.LogicalByteOffset = OriginalOp->Asl.LogicalByteOffset;
502 Op->Asl.Column = OriginalOp->Asl.Column;
503 Op->Asl.Flags = OriginalOp->Asl.Flags;
504 Op->Asl.CompileFlags = OriginalOp->Asl.CompileFlags;
505 Op->Asl.AmlOpcode = OriginalOp->Asl.AmlOpcode;
506 Op->Asl.ParseOpcode = OriginalOp->Asl.ParseOpcode;
507 Op->Asl.Parent = ParentOp;
509 UtSetParseOpName (Op);
511 /* Copy a possible subtree below this op */
513 if (OriginalOp->Asl.Child)
515 Op->Asl.Child = TrCreateTargetOp (OriginalOp->Asl.Child, Op);
518 if (OriginalOp->Asl.Next) /* Null for top-level op */
520 Op->Asl.Next = TrCreateTargetOp (OriginalOp->Asl.Next, ParentOp);
527 /*******************************************************************************
529 * FUNCTION: TrCreateAssignmentOp
531 * PARAMETERS: Target - Assignment target
532 * Source - Assignment source
534 * RETURN: Pointer to the new op. Aborts on allocation failure
536 * DESCRIPTION: Implements the C-style '=' operator. It changes the parse
537 * tree if possible to utilize the last argument of the math
538 * operators which is a target operand -- thus saving invocation
539 * of and additional Store() operator. An optimization.
541 ******************************************************************************/
544 TrCreateAssignmentOp (
545 ACPI_PARSE_OBJECT *Target,
546 ACPI_PARSE_OBJECT *Source)
548 ACPI_PARSE_OBJECT *TargetOp;
549 ACPI_PARSE_OBJECT *SourceOp1;
550 ACPI_PARSE_OBJECT *SourceOp2;
551 ACPI_PARSE_OBJECT *Operator;
554 DbgPrint (ASL_PARSE_OUTPUT,
555 "\nTrCreateAssignmentOp Line [%u to %u] Source %s Target %s\n",
556 Source->Asl.LineNumber, Source->Asl.EndLine,
557 UtGetOpName (Source->Asl.ParseOpcode),
558 UtGetOpName (Target->Asl.ParseOpcode));
560 TrSetOpFlags (Target, OP_IS_TARGET);
562 switch (Source->Asl.ParseOpcode)
565 * Only these operators can be optimized because they have
573 case PARSEOP_MULTIPLY:
576 case PARSEOP_SHIFTLEFT:
577 case PARSEOP_SHIFTRIGHT:
578 case PARSEOP_SUBTRACT:
583 /* Otherwise, just create a normal Store operator */
590 * Transform the parse tree such that the target is moved to the
591 * last operand of the operator
593 SourceOp1 = Source->Asl.Child;
594 SourceOp2 = SourceOp1->Asl.Next;
596 /* NOT only has one operand, but has a target */
598 if (Source->Asl.ParseOpcode == PARSEOP_NOT)
600 SourceOp2 = SourceOp1;
603 /* DIVIDE has an extra target operand (remainder) */
605 if (Source->Asl.ParseOpcode == PARSEOP_DIVIDE)
607 SourceOp2 = SourceOp2->Asl.Next;
610 TargetOp = SourceOp2->Asl.Next;
613 * Can't perform this optimization if there already is a target
614 * for the operator (ZERO is a "no target" placeholder).
616 if (TargetOp->Asl.ParseOpcode != PARSEOP_ZERO)
621 /* Link in the target as the final operand */
623 SourceOp2->Asl.Next = Target;
624 Target->Asl.Parent = Source;
630 Operator = TrAllocateOp (PARSEOP_STORE);
631 TrLinkOpChildren (Operator, 2, Source, Target);
633 /* Set the appropriate line numbers for the new op */
635 Operator->Asl.LineNumber = Target->Asl.LineNumber;
636 Operator->Asl.LogicalLineNumber = Target->Asl.LogicalLineNumber;
637 Operator->Asl.LogicalByteOffset = Target->Asl.LogicalByteOffset;
638 Operator->Asl.Column = Target->Asl.Column;
644 /*******************************************************************************
646 * FUNCTION: TrCreateNullTargetOp
650 * RETURN: Pointer to the new op. Aborts on allocation failure
652 * DESCRIPTION: Create a "null" target op. This is defined by the ACPI
653 * specification to be a zero AML opcode, and indicates that
654 * no target has been specified for the parent operation
656 ******************************************************************************/
659 TrCreateNullTargetOp (
662 ACPI_PARSE_OBJECT *Op;
665 Op = TrAllocateOp (PARSEOP_ZERO);
666 Op->Asl.CompileFlags |= (OP_IS_TARGET | OP_COMPILE_TIME_CONST);
668 DbgPrint (ASL_PARSE_OUTPUT,
669 "\nCreateNullTargetOp Ln/Col %u/%u NewOp %p Op %s\n",
670 Op->Asl.LineNumber, Op->Asl.Column, Op,
671 UtGetOpName (Op->Asl.ParseOpcode));
677 /*******************************************************************************
679 * FUNCTION: TrCreateConstantLeafOp
681 * PARAMETERS: ParseOpcode - The constant opcode
683 * RETURN: Pointer to the new op. Aborts on allocation failure
685 * DESCRIPTION: Create a leaf op (no children or peers) for one of the
686 * special constants - __LINE__, __FILE__, and __DATE__.
688 * Note: The fullimplemenation of __METHOD__ cannot happen here because we
689 * don't have a full parse tree at this time and cannot find the parent
690 * control method. __METHOD__ must be implemented later, after the parse
691 * tree has been fully constructed.
693 ******************************************************************************/
696 TrCreateConstantLeafOp (
699 ACPI_PARSE_OBJECT *Op = NULL;
701 char *StaticTimeString;
708 case PARSEOP___LINE__:
710 Op = TrAllocateOp (PARSEOP_INTEGER);
711 Op->Asl.Value.Integer = Op->Asl.LineNumber;
714 case PARSEOP___METHOD__:
716 /* Will become a string literal later */
718 Op = TrAllocateOp (PARSEOP___METHOD__);
719 Op->Asl.Value.String = NULL;
722 case PARSEOP___PATH__:
724 Op = TrAllocateOp (PARSEOP_STRING_LITERAL);
726 /* Op.Asl.Filename contains the full pathname to the file */
728 Op->Asl.Value.String = Op->Asl.Filename;
731 case PARSEOP___FILE__:
733 Op = TrAllocateOp (PARSEOP_STRING_LITERAL);
735 /* Get the simple filename from the full path */
737 FlSplitInputPathname (Op->Asl.Filename, NULL, &Filename);
738 Op->Asl.Value.String = Filename;
741 case PARSEOP___DATE__:
743 Op = TrAllocateOp (PARSEOP_STRING_LITERAL);
745 /* Get a copy of the current time */
747 CurrentTime = time (NULL);
748 StaticTimeString = ctime (&CurrentTime);
749 TimeString = UtLocalCalloc (strlen (StaticTimeString) + 1);
750 strcpy (TimeString, StaticTimeString);
752 TimeString[strlen(TimeString) -1] = 0; /* Remove trailing newline */
753 Op->Asl.Value.String = TimeString;
756 default: /* This would be an internal error */
761 DbgPrint (ASL_PARSE_OUTPUT,
762 "\nCreateConstantLeafOp Ln/Col %u/%u NewOp %p "
763 "Op %s Value %8.8X%8.8X \n",
764 Op->Asl.LineNumber, Op->Asl.Column, Op, UtGetOpName (ParseOpcode),
765 ACPI_FORMAT_UINT64 (Op->Asl.Value.Integer));
771 /*******************************************************************************
773 * FUNCTION: TrAllocateOp
775 * PARAMETERS: ParseOpcode - Opcode to be assigned to the op
777 * RETURN: New parse op. Aborts on allocation failure
779 * DESCRIPTION: Allocate and initialize a new parse op for the parse tree
781 ******************************************************************************/
787 ACPI_PARSE_OBJECT *Op;
788 ACPI_PARSE_OBJECT *LatestOp;
791 Op = TrGetOpFromCache ();
793 Op->Asl.ParseOpcode = (UINT16) ParseOpcode;
794 Op->Asl.Filename = Gbl_Files[ASL_FILE_INPUT].Filename;
795 Op->Asl.LineNumber = Gbl_CurrentLineNumber;
796 Op->Asl.LogicalLineNumber = Gbl_LogicalLineNumber;
797 Op->Asl.LogicalByteOffset = Gbl_CurrentLineOffset;
798 Op->Asl.Column = Gbl_CurrentColumn;
800 UtSetParseOpName (Op);
802 /* The following is for capturing comments */
804 if(Gbl_CaptureComments)
806 LatestOp = Gbl_CommentState.LatestParseOp;
807 Op->Asl.InlineComment = NULL;
808 Op->Asl.EndNodeComment = NULL;
809 Op->Asl.CommentList = NULL;
810 Op->Asl.FileChanged = FALSE;
813 * Check to see if the file name has changed before resetting the
817 (ParseOpcode != PARSEOP_INCLUDE) &&
818 (ParseOpcode != PARSEOP_INCLUDE_END) &&
819 strcmp (LatestOp->Asl.Filename, Op->Asl.Filename))
821 CvDbgPrint ("latest op: %s\n", LatestOp->Asl.ParseOpName);
822 Op->Asl.FileChanged = TRUE;
823 if (Gbl_IncludeFileStack)
825 Op->Asl.ParentFilename = Gbl_IncludeFileStack->Filename;
829 Op->Asl.ParentFilename = NULL;
833 Gbl_CommentState.LatestParseOp = Op;
834 CvDbgPrint ("TrAllocateOp=Set latest parse op to this op.\n");
835 CvDbgPrint (" Op->Asl.ParseOpName = %s\n",
836 Gbl_CommentState.LatestParseOp->Asl.ParseOpName);
837 CvDbgPrint (" Op->Asl.ParseOpcode = 0x%x\n", ParseOpcode);
839 if (Op->Asl.FileChanged)
841 CvDbgPrint(" file has been changed!\n");
845 * if this parse op's syntax uses () and {} (i.e. Package(1){0x00}) then
846 * set a flag in the comment state. This facilitates paring comments for
847 * these types of opcodes.
849 if ((CvParseOpBlockType(Op) == (BLOCK_PAREN | BLOCK_BRACE)) &&
850 (ParseOpcode != PARSEOP_DEFINITION_BLOCK))
852 CvDbgPrint ("Parsing paren/Brace op now!\n");
853 Gbl_CommentState.ParsingParenBraceNode = Op;
856 if (Gbl_CommentListHead)
858 CvDbgPrint ("Transferring...\n");
859 Op->Asl.CommentList = Gbl_CommentListHead;
860 Gbl_CommentListHead = NULL;
861 Gbl_CommentListTail = NULL;
862 CvDbgPrint (" Transferred current comment list to this op.\n");
863 CvDbgPrint (" %s\n", Op->Asl.CommentList->Comment);
866 if (Gbl_InlineCommentBuffer)
868 Op->Asl.InlineComment = Gbl_InlineCommentBuffer;
869 Gbl_InlineCommentBuffer = NULL;
870 CvDbgPrint ("Transferred current inline comment list to this op.\n");
878 /*******************************************************************************
880 * FUNCTION: TrGetOpFromCache
884 * RETURN: New parse op. Aborts on allocation failure
886 * DESCRIPTION: Allocate a new parse op for the parse tree. Bypass the local
887 * dynamic memory manager for performance reasons (This has a
888 * major impact on the speed of the compiler.)
890 ******************************************************************************/
892 static ACPI_PARSE_OBJECT *
896 ASL_CACHE_INFO *Cache;
899 if (Gbl_ParseOpCacheNext >= Gbl_ParseOpCacheLast)
901 /* Allocate a new buffer */
903 Cache = UtLocalCalloc (sizeof (Cache->Next) +
904 (sizeof (ACPI_PARSE_OBJECT) * ASL_PARSEOP_CACHE_SIZE));
906 /* Link new cache buffer to head of list */
908 Cache->Next = Gbl_ParseOpCacheList;
909 Gbl_ParseOpCacheList = Cache;
911 /* Setup cache management pointers */
913 Gbl_ParseOpCacheNext = ACPI_CAST_PTR (ACPI_PARSE_OBJECT, Cache->Buffer);
914 Gbl_ParseOpCacheLast = Gbl_ParseOpCacheNext + ASL_PARSEOP_CACHE_SIZE;
918 return (Gbl_ParseOpCacheNext++);
922 /*******************************************************************************
924 * FUNCTION: TrPrintOpFlags
926 * PARAMETERS: Flags - Flags word to be decoded
927 * OutputLevel - Debug output level: ASL_TREE_OUTPUT etc.
931 * DESCRIPTION: Decode a flags word to text. Displays all flags that are set.
933 ******************************************************************************/
944 for (i = 0; i < ACPI_NUM_OP_FLAGS; i++)
948 DbgPrint (OutputLevel, " %s", Gbl_OpFlagNames[i]);