1 /******************************************************************************
2 *
3 * Module Name: aslparseop - Parse op create/allocate/cache interfaces
4 *
5 *****************************************************************************/
6
7 /******************************************************************************
8 *
9 * 1. Copyright Notice
10 *
11 * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp.
12 * All rights reserved.
13 *
14 * 2. License
15 *
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
19 * property rights.
20 *
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
27 *
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;
36 *
37 * The above copyright and patent license is granted only if the following
38 * conditions are met:
39 *
40 * 3. Conditions
41 *
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.
53 *
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
64 * make.
65 *
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
70 * distribution.
71 *
72 * 3.4. Intel retains all right, title, and interest in and to the Original
73 * Intel Code.
74 *
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.
79 *
80 * 4. Disclaimer and Export Compliance
81 *
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
88 * PARTICULAR PURPOSE.
89 *
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
97 * LIMITED REMEDY.
98 *
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.
113 *
114 *****************************************************************************
115 *
116 * Alternatively, you may choose to be licensed under the terms of the
117 * following license:
118 *
119 * Redistribution and use in source and binary forms, with or without
120 * modification, are permitted provided that the following conditions
121 * are met:
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.
133 *
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.
145 *
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.
149 *
150 *****************************************************************************/
151
152 #include "aslcompiler.h"
153 #include "aslcompiler.y.h"
154 #include "acapps.h"
155 #include "acconvert.h"
156
157 #define _COMPONENT ACPI_COMPILER
158 ACPI_MODULE_NAME ("aslparseop")
159
160
161 /*******************************************************************************
162 *
163 * FUNCTION: TrCreateOp
164 *
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.
169 *
170 * RETURN: Pointer to the new op. Aborts on allocation failure
171 *
172 * DESCRIPTION: Create a new parse op and link together a list of child
173 * ops underneath the new op.
174 *
175 ******************************************************************************/
176
177 ACPI_PARSE_OBJECT *
TrCreateOp(UINT32 ParseOpcode,UINT32 NumChildren,...)178 TrCreateOp (
179 UINT32 ParseOpcode,
180 UINT32 NumChildren,
181 ...)
182 {
183 ACPI_PARSE_OBJECT *Op;
184 ACPI_PARSE_OBJECT *Child;
185 ACPI_PARSE_OBJECT *PrevChild;
186 va_list ap;
187 UINT32 i;
188 BOOLEAN FirstChild;
189
190
191 va_start (ap, NumChildren);
192
193 /* Allocate one new op */
194
195 Op = TrAllocateOp (ParseOpcode);
196
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));
201
202 /* Some extra debug output based on the parse opcode */
203
204 switch (ParseOpcode)
205 {
206 case PARSEOP_ASL_CODE:
207
208 Gbl_ParseTreeRoot = Op;
209 Op->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
210 DbgPrint (ASL_PARSE_OUTPUT, "ASLCODE (Tree Completed)->");
211 break;
212
213 case PARSEOP_DEFINITION_BLOCK:
214
215 DbgPrint (ASL_PARSE_OUTPUT, "DEFINITION_BLOCK (Tree Completed)->");
216 break;
217
218 case PARSEOP_OPERATIONREGION:
219
220 DbgPrint (ASL_PARSE_OUTPUT, "OPREGION->");
221 break;
222
223 case PARSEOP_OR:
224
225 DbgPrint (ASL_PARSE_OUTPUT, "OR->");
226 break;
227
228 default:
229
230 /* Nothing to do for other opcodes */
231
232 break;
233 }
234
235 /* Link the new op to its children */
236
237 PrevChild = NULL;
238 FirstChild = TRUE;
239 for (i = 0; i < NumChildren; i++)
240 {
241 /* Get the next child */
242
243 Child = va_arg (ap, ACPI_PARSE_OBJECT *);
244 DbgPrint (ASL_PARSE_OUTPUT, "%p, ", Child);
245
246 /*
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
251 */
252 if (!Child)
253 {
254 Child = TrAllocateOp (PARSEOP_DEFAULT_ARG);
255 }
256
257 /* Link first child to parent */
258
259 if (FirstChild)
260 {
261 FirstChild = FALSE;
262 Op->Asl.Child = Child;
263
264 /*
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.
271 */
272 if (AcpiGbl_CaptureComments &&
273 ((ParseOpcode == PARSEOP_CONNECTION) ||
274 (ParseOpcode == PARSEOP_EXTERNAL) ||
275 (ParseOpcode == PARSEOP_OFFSET) ||
276 (ParseOpcode == PARSEOP_ACCESSAS)))
277 {
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;
282
283 Child->Asl.CommentList = NULL;
284 Child->Asl.EndBlkComment = NULL;
285 Child->Asl.InlineComment = NULL;
286 Child->Asl.FileChanged = FALSE;
287
288 /*
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
291 * same file.
292 */
293 Op->Asl.Filename = Child->Asl.Filename;
294 Op->Asl.ParentFilename = Child->Asl.ParentFilename;
295 }
296 }
297
298 /* Point all children to parent */
299
300 Child->Asl.Parent = Op;
301
302 /* Link children in a peer list */
303
304 if (PrevChild)
305 {
306 PrevChild->Asl.Next = Child;
307 };
308
309 /* Get the comment from last child in the resource template call */
310
311 if (AcpiGbl_CaptureComments &&
312 (Op->Asl.ParseOpcode == PARSEOP_RESOURCETEMPLATE))
313 {
314 CvDbgPrint ("Transferred current comment list to this op.\n");
315 Op->Asl.CommentList = Child->Asl.CommentList;
316 Child->Asl.CommentList = NULL;
317
318 Op->Asl.InlineComment = Child->Asl.InlineComment;
319 Child->Asl.InlineComment = NULL;
320 }
321
322 /*
323 * This child might be a list, point all ops in the list
324 * to the same parent
325 */
326 while (Child->Asl.Next)
327 {
328 Child = Child->Asl.Next;
329 Child->Asl.Parent = Op;
330 }
331
332 PrevChild = Child;
333 }
334
335 va_end(ap);
336 DbgPrint (ASL_PARSE_OUTPUT, "\n");
337 return (Op);
338 }
339
340
341 /*******************************************************************************
342 *
343 * FUNCTION: TrCreateLeafOp
344 *
345 * PARAMETERS: ParseOpcode - New opcode to be assigned to the op
346 *
347 * RETURN: Pointer to the new op. Aborts on allocation failure
348 *
349 * DESCRIPTION: Create a simple leaf op (no children or peers, and no value
350 * assigned to the op)
351 *
352 ******************************************************************************/
353
354 ACPI_PARSE_OBJECT *
TrCreateLeafOp(UINT32 ParseOpcode)355 TrCreateLeafOp (
356 UINT32 ParseOpcode)
357 {
358 ACPI_PARSE_OBJECT *Op;
359
360
361 Op = TrAllocateOp (ParseOpcode);
362
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));
366
367 return (Op);
368 }
369
370
371 /*******************************************************************************
372 *
373 * FUNCTION: TrCreateValuedLeafOp
374 *
375 * PARAMETERS: ParseOpcode - New opcode to be assigned to the op
376 * Value - Value to be assigned to the op
377 *
378 * RETURN: Pointer to the new op. Aborts on allocation failure
379 *
380 * DESCRIPTION: Create a leaf op (no children or peers) with a value
381 * assigned to it
382 *
383 ******************************************************************************/
384
385 ACPI_PARSE_OBJECT *
TrCreateValuedLeafOp(UINT32 ParseOpcode,UINT64 Value)386 TrCreateValuedLeafOp (
387 UINT32 ParseOpcode,
388 UINT64 Value)
389 {
390 ACPI_PARSE_OBJECT *Op;
391
392
393 Op = TrAllocateOp (ParseOpcode);
394 Op->Asl.Value.Integer = Value;
395
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));
401
402 switch (ParseOpcode)
403 {
404 case PARSEOP_STRING_LITERAL:
405
406 DbgPrint (ASL_PARSE_OUTPUT, "STRING->%s", Value);
407 break;
408
409 case PARSEOP_NAMESEG:
410
411 DbgPrint (ASL_PARSE_OUTPUT, "NAMESEG->%s", Value);
412 break;
413
414 case PARSEOP_NAMESTRING:
415
416 DbgPrint (ASL_PARSE_OUTPUT, "NAMESTRING->%s", Value);
417 break;
418
419 case PARSEOP_EISAID:
420
421 DbgPrint (ASL_PARSE_OUTPUT, "EISAID->%s", Value);
422 break;
423
424 case PARSEOP_METHOD:
425
426 DbgPrint (ASL_PARSE_OUTPUT, "METHOD");
427 break;
428
429 case PARSEOP_INTEGER:
430
431 DbgPrint (ASL_PARSE_OUTPUT, "INTEGER->%8.8X%8.8X",
432 ACPI_FORMAT_UINT64 (Value));
433 break;
434
435 default:
436 break;
437 }
438
439 DbgPrint (ASL_PARSE_OUTPUT, "\n\n");
440 return (Op);
441 }
442
443
444 /*******************************************************************************
445 *
446 * FUNCTION: TrCreateTargetOp
447 *
448 * PARAMETERS: OriginalOp - Op to be copied
449 *
450 * RETURN: Pointer to the new op. Aborts on allocation failure
451 *
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.
456 *
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.
461 *
462 * Subtree example:
463 * DeRefOf (Local1) += 32
464 *
465 * This gets converted to:
466 * Add (DeRefOf (Local1), 32, DeRefOf (Local1))
467 *
468 * Each DeRefOf has a single child, Local1. Even more complex
469 * subtrees can be created via the Index and DeRefOf operators.
470 *
471 ******************************************************************************/
472
473 ACPI_PARSE_OBJECT *
TrCreateTargetOp(ACPI_PARSE_OBJECT * OriginalOp,ACPI_PARSE_OBJECT * ParentOp)474 TrCreateTargetOp (
475 ACPI_PARSE_OBJECT *OriginalOp,
476 ACPI_PARSE_OBJECT *ParentOp)
477 {
478 ACPI_PARSE_OBJECT *Op;
479
480
481 if (!OriginalOp)
482 {
483 return (NULL);
484 }
485
486 Op = UtParseOpCacheCalloc ();
487
488 /* Copy the pertinent values (omit link pointer fields) */
489
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;
501
502 UtSetParseOpName (Op);
503
504 /* Copy a possible subtree below this op */
505
506 if (OriginalOp->Asl.Child)
507 {
508 Op->Asl.Child = TrCreateTargetOp (OriginalOp->Asl.Child, Op);
509 }
510
511 if (OriginalOp->Asl.Next) /* Null for top-level op */
512 {
513 Op->Asl.Next = TrCreateTargetOp (OriginalOp->Asl.Next, ParentOp);
514 }
515
516 return (Op);
517 }
518
519
520 /*******************************************************************************
521 *
522 * FUNCTION: TrCreateAssignmentOp
523 *
524 * PARAMETERS: Target - Assignment target
525 * Source - Assignment source
526 *
527 * RETURN: Pointer to the new op. Aborts on allocation failure
528 *
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.
533 *
534 ******************************************************************************/
535
536 ACPI_PARSE_OBJECT *
TrCreateAssignmentOp(ACPI_PARSE_OBJECT * Target,ACPI_PARSE_OBJECT * Source)537 TrCreateAssignmentOp (
538 ACPI_PARSE_OBJECT *Target,
539 ACPI_PARSE_OBJECT *Source)
540 {
541 ACPI_PARSE_OBJECT *TargetOp;
542 ACPI_PARSE_OBJECT *SourceOp1;
543 ACPI_PARSE_OBJECT *SourceOp2;
544 ACPI_PARSE_OBJECT *Operator;
545
546
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));
552
553 TrSetOpFlags (Target, OP_IS_TARGET);
554
555 switch (Source->Asl.ParseOpcode)
556 {
557 /*
558 * Only these operators can be optimized because they have
559 * a target operand
560 */
561 case PARSEOP_ADD:
562 case PARSEOP_AND:
563 case PARSEOP_DIVIDE:
564 case PARSEOP_INDEX:
565 case PARSEOP_MOD:
566 case PARSEOP_MULTIPLY:
567 case PARSEOP_NOT:
568 case PARSEOP_OR:
569 case PARSEOP_SHIFTLEFT:
570 case PARSEOP_SHIFTRIGHT:
571 case PARSEOP_SUBTRACT:
572 case PARSEOP_XOR:
573
574 break;
575
576 /* Otherwise, just create a normal Store operator */
577
578 default:
579 goto CannotOptimize;
580 }
581
582 /*
583 * Transform the parse tree such that the target is moved to the
584 * last operand of the operator
585 */
586 SourceOp1 = Source->Asl.Child;
587 SourceOp2 = SourceOp1->Asl.Next;
588
589 /* NOT only has one operand, but has a target */
590
591 if (Source->Asl.ParseOpcode == PARSEOP_NOT)
592 {
593 SourceOp2 = SourceOp1;
594 }
595
596 /* DIVIDE has an extra target operand (remainder) */
597
598 if (Source->Asl.ParseOpcode == PARSEOP_DIVIDE)
599 {
600 SourceOp2 = SourceOp2->Asl.Next;
601 }
602
603 TargetOp = SourceOp2->Asl.Next;
604
605 /*
606 * Can't perform this optimization if there already is a target
607 * for the operator (ZERO is a "no target" placeholder).
608 */
609 if (TargetOp->Asl.ParseOpcode != PARSEOP_ZERO)
610 {
611 goto CannotOptimize;
612 }
613
614 /* Link in the target as the final operand */
615
616 SourceOp2->Asl.Next = Target;
617 Target->Asl.Parent = Source;
618 return (Source);
619
620
621 CannotOptimize:
622
623 Operator = TrAllocateOp (PARSEOP_STORE);
624 TrLinkOpChildren (Operator, 2, Source, Target);
625
626 /* Set the appropriate line numbers for the new op */
627
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;
632
633 return (Operator);
634 }
635
636
637 /*******************************************************************************
638 *
639 * FUNCTION: TrCreateNullTargetOp
640 *
641 * PARAMETERS: None
642 *
643 * RETURN: Pointer to the new op. Aborts on allocation failure
644 *
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
648 *
649 ******************************************************************************/
650
651 ACPI_PARSE_OBJECT *
TrCreateNullTargetOp(void)652 TrCreateNullTargetOp (
653 void)
654 {
655 ACPI_PARSE_OBJECT *Op;
656
657
658 Op = TrAllocateOp (PARSEOP_ZERO);
659 Op->Asl.CompileFlags |= (OP_IS_TARGET | OP_COMPILE_TIME_CONST);
660
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));
665
666 return (Op);
667 }
668
669
670 /*******************************************************************************
671 *
672 * FUNCTION: TrCreateConstantLeafOp
673 *
674 * PARAMETERS: ParseOpcode - The constant opcode
675 *
676 * RETURN: Pointer to the new op. Aborts on allocation failure
677 *
678 * DESCRIPTION: Create a leaf op (no children or peers) for one of the
679 * special constants - __LINE__, __FILE__, and __DATE__.
680 *
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.
685 *
686 ******************************************************************************/
687
688 ACPI_PARSE_OBJECT *
TrCreateConstantLeafOp(UINT32 ParseOpcode)689 TrCreateConstantLeafOp (
690 UINT32 ParseOpcode)
691 {
692 ACPI_PARSE_OBJECT *Op = NULL;
693 time_t CurrentTime;
694 char *StaticTimeString;
695 char *TimeString;
696 char *Filename;
697
698
699 switch (ParseOpcode)
700 {
701 case PARSEOP___LINE__:
702
703 Op = TrAllocateOp (PARSEOP_INTEGER);
704 Op->Asl.Value.Integer = Op->Asl.LineNumber;
705 break;
706
707 case PARSEOP___METHOD__:
708
709 /* Will become a string literal later */
710
711 Op = TrAllocateOp (PARSEOP___METHOD__);
712 Op->Asl.Value.String = NULL;
713 break;
714
715 case PARSEOP___PATH__:
716
717 Op = TrAllocateOp (PARSEOP_STRING_LITERAL);
718
719 /* Op.Asl.Filename contains the full pathname to the file */
720
721 Op->Asl.Value.String = Op->Asl.Filename;
722 break;
723
724 case PARSEOP___FILE__:
725
726 Op = TrAllocateOp (PARSEOP_STRING_LITERAL);
727
728 /* Get the simple filename from the full path */
729
730 FlSplitInputPathname (Op->Asl.Filename, NULL, &Filename);
731 Op->Asl.Value.String = Filename;
732 break;
733
734 case PARSEOP___DATE__:
735
736 Op = TrAllocateOp (PARSEOP_STRING_LITERAL);
737
738 /* Get a copy of the current time */
739
740 CurrentTime = time (NULL);
741 StaticTimeString = ctime (&CurrentTime);
742 TimeString = UtLocalCalloc (strlen (StaticTimeString) + 1);
743 strcpy (TimeString, StaticTimeString);
744
745 TimeString[strlen(TimeString) -1] = 0; /* Remove trailing newline */
746 Op->Asl.Value.String = TimeString;
747 break;
748
749 default: /* This would be an internal error */
750
751 return (NULL);
752 }
753
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));
759
760 return (Op);
761 }
762
763
764 /*******************************************************************************
765 *
766 * FUNCTION: TrAllocateOp
767 *
768 * PARAMETERS: ParseOpcode - Opcode to be assigned to the op
769 *
770 * RETURN: New parse op. Aborts on allocation failure
771 *
772 * DESCRIPTION: Allocate and initialize a new parse op for the parse tree
773 *
774 ******************************************************************************/
775
776 ACPI_PARSE_OBJECT *
TrAllocateOp(UINT32 ParseOpcode)777 TrAllocateOp (
778 UINT32 ParseOpcode)
779 {
780 ACPI_PARSE_OBJECT *Op;
781 ACPI_PARSE_OBJECT *LatestOp;
782
783
784 Op = UtParseOpCacheCalloc ();
785
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;
792
793 UtSetParseOpName (Op);
794
795 /* The following is for capturing comments */
796
797 if (AcpiGbl_CaptureComments)
798 {
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;
804
805 /*
806 * Check to see if the file name has changed before resetting the
807 * latest parse op.
808 */
809 if (LatestOp &&
810 (ParseOpcode != PARSEOP_INCLUDE) &&
811 (ParseOpcode != PARSEOP_INCLUDE_END) &&
812 strcmp (LatestOp->Asl.Filename, Op->Asl.Filename))
813 {
814 CvDbgPrint ("latest op: %s\n", LatestOp->Asl.ParseOpName);
815 Op->Asl.FileChanged = TRUE;
816 if (Gbl_IncludeFileStack)
817 {
818 Op->Asl.ParentFilename = Gbl_IncludeFileStack->Filename;
819 }
820 else
821 {
822 Op->Asl.ParentFilename = NULL;
823 }
824 }
825
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);
831
832 if (Op->Asl.FileChanged)
833 {
834 CvDbgPrint(" file has been changed!\n");
835 }
836
837 /*
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.
841 */
842 if ((CvParseOpBlockType(Op) == (BLOCK_PAREN | BLOCK_BRACE)) &&
843 (ParseOpcode != PARSEOP_DEFINITION_BLOCK))
844 {
845 CvDbgPrint ("Parsing paren/Brace op now!\n");
846 Gbl_CommentState.ParsingParenBraceNode = Op;
847 }
848
849 if (Gbl_CommentListHead)
850 {
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);
857 }
858
859 if (Gbl_InlineCommentBuffer)
860 {
861 Op->Asl.InlineComment = Gbl_InlineCommentBuffer;
862 Gbl_InlineCommentBuffer = NULL;
863 CvDbgPrint ("Transferred current inline comment list to this op.\n");
864 }
865 }
866
867 return (Op);
868 }
869
870
871 /*******************************************************************************
872 *
873 * FUNCTION: TrPrintOpFlags
874 *
875 * PARAMETERS: Flags - Flags word to be decoded
876 * OutputLevel - Debug output level: ASL_TREE_OUTPUT etc.
877 *
878 * RETURN: None
879 *
880 * DESCRIPTION: Decode a flags word to text. Displays all flags that are set.
881 *
882 ******************************************************************************/
883
884 void
TrPrintOpFlags(UINT32 Flags,UINT32 OutputLevel)885 TrPrintOpFlags (
886 UINT32 Flags,
887 UINT32 OutputLevel)
888 {
889 UINT32 FlagBit = 1;
890 UINT32 i;
891
892
893 for (i = 0; i < ACPI_NUM_OP_FLAGS; i++)
894 {
895 if (Flags & FlagBit)
896 {
897 DbgPrint (OutputLevel, " %s", Gbl_OpFlagNames[i]);
898 }
899
900 FlagBit <<= 1;
901 }
902 }
903