1 /******************************************************************************
2 *
3 * Module Name: aslutils -- compiler utilities
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 "acdisasm.h"
155 #include "acnamesp.h"
156 #include "amlcode.h"
157 #include "acapps.h"
158 #include <sys/stat.h>
159
160
161 #define _COMPONENT ACPI_COMPILER
162 ACPI_MODULE_NAME ("aslutils")
163
164
165 /* Local prototypes */
166
167 static void
168 UtPadNameWithUnderscores (
169 char *NameSeg,
170 char *PaddedNameSeg);
171
172 static void
173 UtAttachNameseg (
174 ACPI_PARSE_OBJECT *Op,
175 char *Name);
176
177
178 /*******************************************************************************
179 *
180 * FUNCTION: UtIsBigEndianMachine
181 *
182 * PARAMETERS: None
183 *
184 * RETURN: TRUE if machine is big endian
185 * FALSE if machine is little endian
186 *
187 * DESCRIPTION: Detect whether machine is little endian or big endian.
188 *
189 ******************************************************************************/
190
191 UINT8
UtIsBigEndianMachine(void)192 UtIsBigEndianMachine (
193 void)
194 {
195 union {
196 UINT32 Integer;
197 UINT8 Bytes[4];
198 } Overlay = {0xFF000000};
199
200
201 return (Overlay.Bytes[0]); /* Returns 0xFF (TRUE) for big endian */
202 }
203
204
205 /******************************************************************************
206 *
207 * FUNCTION: UtQueryForOverwrite
208 *
209 * PARAMETERS: Pathname - Output filename
210 *
211 * RETURN: TRUE if file does not exist or overwrite is authorized
212 *
213 * DESCRIPTION: Query for file overwrite if it already exists.
214 *
215 ******************************************************************************/
216
217 BOOLEAN
UtQueryForOverwrite(char * Pathname)218 UtQueryForOverwrite (
219 char *Pathname)
220 {
221 struct stat StatInfo;
222
223
224 if (!stat (Pathname, &StatInfo))
225 {
226 fprintf (stderr, "Target file \"%s\" already exists, overwrite? [y|n] ",
227 Pathname);
228
229 if (getchar () != 'y')
230 {
231 return (FALSE);
232 }
233 }
234
235 return (TRUE);
236 }
237
238
239 /*******************************************************************************
240 *
241 * FUNCTION: UtNodeIsDescendantOf
242 *
243 * PARAMETERS: Node1 - Child node
244 * Node2 - Possible parent node
245 *
246 * RETURN: Boolean
247 *
248 * DESCRIPTION: Returns TRUE if Node1 is a descendant of Node2. Otherwise,
249 * return FALSE. Note, we assume a NULL Node2 element to be the
250 * topmost (root) scope. All nodes are descendants of the root.
251 * Note: Nodes at the same level (siblings) are not considered
252 * descendants.
253 *
254 ******************************************************************************/
255
256 BOOLEAN
UtNodeIsDescendantOf(ACPI_NAMESPACE_NODE * Node1,ACPI_NAMESPACE_NODE * Node2)257 UtNodeIsDescendantOf (
258 ACPI_NAMESPACE_NODE *Node1,
259 ACPI_NAMESPACE_NODE *Node2)
260 {
261
262 if (Node1 == Node2)
263 {
264 return (FALSE);
265 }
266
267 if (!Node2)
268 {
269 return (TRUE); /* All nodes descend from the root */
270 }
271
272 /* Walk upward until the root is reached or parent is found */
273
274 while (Node1)
275 {
276 if (Node1 == Node2)
277 {
278 return (TRUE);
279 }
280
281 Node1 = Node1->Parent;
282 }
283
284 return (FALSE);
285 }
286
287
288 /*******************************************************************************
289 *
290 * FUNCTION: UtGetParentMethod
291 *
292 * PARAMETERS: Node - Namespace node for any object
293 *
294 * RETURN: Namespace node for the parent method
295 * NULL - object is not within a method
296 *
297 * DESCRIPTION: Find the parent (owning) method node for a namespace object
298 *
299 ******************************************************************************/
300
301 void *
UtGetParentMethod(ACPI_NAMESPACE_NODE * Node)302 UtGetParentMethod (
303 ACPI_NAMESPACE_NODE *Node)
304 {
305 ACPI_NAMESPACE_NODE *ParentNode;
306
307
308 if (!Node)
309 {
310 return (NULL);
311 }
312
313 /* Walk upward until a method is found, or the root is reached */
314
315 ParentNode = Node->Parent;
316 while (ParentNode)
317 {
318 if (ParentNode->Type == ACPI_TYPE_METHOD)
319 {
320 return (ParentNode);
321 }
322
323 ParentNode = ParentNode->Parent;
324 }
325
326 return (NULL); /* Object is not within a control method */
327 }
328
329
330 /*******************************************************************************
331 *
332 * FUNCTION: UtDisplaySupportedTables
333 *
334 * PARAMETERS: None
335 *
336 * RETURN: None
337 *
338 * DESCRIPTION: Print all supported ACPI table names.
339 *
340 ******************************************************************************/
341
342 void
UtDisplaySupportedTables(void)343 UtDisplaySupportedTables (
344 void)
345 {
346 const AH_TABLE *TableData;
347 UINT32 i;
348
349
350 printf ("\nACPI tables supported by iASL version %8.8X:\n"
351 " (Compiler, Disassembler, Template Generator)\n\n",
352 ACPI_CA_VERSION);
353
354 /* All ACPI tables with the common table header */
355
356 printf ("\n Supported ACPI tables:\n");
357 for (TableData = Gbl_AcpiSupportedTables, i = 1;
358 TableData->Signature; TableData++, i++)
359 {
360 printf ("%8u) %s %s\n", i,
361 TableData->Signature, TableData->Description);
362 }
363 }
364
365
366 /*******************************************************************************
367 *
368 * FUNCTION: UtDisplayConstantOpcodes
369 *
370 * PARAMETERS: None
371 *
372 * RETURN: None
373 *
374 * DESCRIPTION: Print AML opcodes that can be used in constant expressions.
375 *
376 ******************************************************************************/
377
378 void
UtDisplayConstantOpcodes(void)379 UtDisplayConstantOpcodes (
380 void)
381 {
382 UINT32 i;
383
384
385 printf ("Constant expression opcode information\n\n");
386
387 for (i = 0; i < sizeof (AcpiGbl_AmlOpInfo) / sizeof (ACPI_OPCODE_INFO); i++)
388 {
389 if (AcpiGbl_AmlOpInfo[i].Flags & AML_CONSTANT)
390 {
391 printf ("%s\n", AcpiGbl_AmlOpInfo[i].Name);
392 }
393 }
394 }
395
396
397 /*******************************************************************************
398 *
399 * FUNCTION: UtBeginEvent
400 *
401 * PARAMETERS: Name - Ascii name of this event
402 *
403 * RETURN: Event number (integer index)
404 *
405 * DESCRIPTION: Saves the current time with this event
406 *
407 ******************************************************************************/
408
409 UINT8
UtBeginEvent(char * Name)410 UtBeginEvent (
411 char *Name)
412 {
413
414 if (AslGbl_NextEvent >= ASL_NUM_EVENTS)
415 {
416 AcpiOsPrintf ("Ran out of compiler event structs!\n");
417 return (AslGbl_NextEvent);
418 }
419
420 /* Init event with current (start) time */
421
422 AslGbl_Events[AslGbl_NextEvent].StartTime = AcpiOsGetTimer ();
423 AslGbl_Events[AslGbl_NextEvent].EventName = Name;
424 AslGbl_Events[AslGbl_NextEvent].Valid = TRUE;
425 return (AslGbl_NextEvent++);
426 }
427
428
429 /*******************************************************************************
430 *
431 * FUNCTION: UtEndEvent
432 *
433 * PARAMETERS: Event - Event number (integer index)
434 *
435 * RETURN: None
436 *
437 * DESCRIPTION: Saves the current time (end time) with this event
438 *
439 ******************************************************************************/
440
441 void
UtEndEvent(UINT8 Event)442 UtEndEvent (
443 UINT8 Event)
444 {
445
446 if (Event >= ASL_NUM_EVENTS)
447 {
448 return;
449 }
450
451 /* Insert end time for event */
452
453 AslGbl_Events[Event].EndTime = AcpiOsGetTimer ();
454 }
455
456
457 /*******************************************************************************
458 *
459 * FUNCTION: DbgPrint
460 *
461 * PARAMETERS: Type - Type of output
462 * Fmt - Printf format string
463 * ... - variable printf list
464 *
465 * RETURN: None
466 *
467 * DESCRIPTION: Conditional print statement. Prints to stderr only if the
468 * debug flag is set.
469 *
470 ******************************************************************************/
471
472 void
DbgPrint(UINT32 Type,char * Fmt,...)473 DbgPrint (
474 UINT32 Type,
475 char *Fmt,
476 ...)
477 {
478 va_list Args;
479
480
481 if (!Gbl_DebugFlag)
482 {
483 return;
484 }
485
486 if ((Type == ASL_PARSE_OUTPUT) &&
487 (!(AslCompilerdebug)))
488 {
489 return;
490 }
491
492 va_start (Args, Fmt);
493 (void) vfprintf (stderr, Fmt, Args);
494 va_end (Args);
495 return;
496 }
497
498
499 /*******************************************************************************
500 *
501 * FUNCTION: UtSetParseOpName
502 *
503 * PARAMETERS: Op - Parse op to be named.
504 *
505 * RETURN: None
506 *
507 * DESCRIPTION: Insert the ascii name of the parse opcode
508 *
509 ******************************************************************************/
510
511 void
UtSetParseOpName(ACPI_PARSE_OBJECT * Op)512 UtSetParseOpName (
513 ACPI_PARSE_OBJECT *Op)
514 {
515
516 AcpiUtSafeStrncpy (Op->Asl.ParseOpName, UtGetOpName (Op->Asl.ParseOpcode),
517 ACPI_MAX_PARSEOP_NAME);
518 }
519
520
521 /*******************************************************************************
522 *
523 * FUNCTION: UtDisplaySummary
524 *
525 * PARAMETERS: FileID - ID of outpout file
526 *
527 * RETURN: None
528 *
529 * DESCRIPTION: Display compilation statistics
530 *
531 ******************************************************************************/
532
533 void
UtDisplaySummary(UINT32 FileId)534 UtDisplaySummary (
535 UINT32 FileId)
536 {
537 UINT32 i;
538
539
540 if (FileId != ASL_FILE_STDOUT)
541 {
542 /* Compiler name and version number */
543
544 FlPrintFile (FileId, "%s version %X [%s]\n\n",
545 ASL_COMPILER_NAME, (UINT32) ACPI_CA_VERSION, ACPI_DATE);
546 }
547
548 /* Summary of main input and output files */
549
550 if (Gbl_FileType == ASL_INPUT_TYPE_ASCII_DATA)
551 {
552 FlPrintFile (FileId,
553 "%-14s %s - %u lines, %u bytes, %u fields\n",
554 "Table Input:",
555 Gbl_Files[ASL_FILE_INPUT].Filename, Gbl_CurrentLineNumber,
556 Gbl_InputByteCount, Gbl_InputFieldCount);
557
558 if ((Gbl_ExceptionCount[ASL_ERROR] == 0) || (Gbl_IgnoreErrors))
559 {
560 FlPrintFile (FileId,
561 "%-14s %s - %u bytes\n",
562 "Binary Output:",
563 Gbl_Files[ASL_FILE_AML_OUTPUT].Filename, Gbl_TableLength);
564 }
565 }
566 else
567 {
568 FlPrintFile (FileId,
569 "%-14s %s - %u lines, %u bytes, %u keywords\n",
570 "ASL Input:",
571 Gbl_Files[ASL_FILE_INPUT].Filename, Gbl_CurrentLineNumber,
572 Gbl_OriginalInputFileSize, TotalKeywords);
573
574 /* AML summary */
575
576 if ((Gbl_ExceptionCount[ASL_ERROR] == 0) || (Gbl_IgnoreErrors))
577 {
578 if (Gbl_Files[ASL_FILE_AML_OUTPUT].Handle)
579 {
580 FlPrintFile (FileId,
581 "%-14s %s - %u bytes, %u named objects, "
582 "%u executable opcodes\n",
583 "AML Output:",
584 Gbl_Files[ASL_FILE_AML_OUTPUT].Filename,
585 FlGetFileSize (ASL_FILE_AML_OUTPUT),
586 TotalNamedObjects, TotalExecutableOpcodes);
587 }
588 }
589 }
590
591 /* Display summary of any optional files */
592
593 for (i = ASL_FILE_SOURCE_OUTPUT; i <= ASL_MAX_FILE_TYPE; i++)
594 {
595 if (!Gbl_Files[i].Filename || !Gbl_Files[i].Handle)
596 {
597 continue;
598 }
599
600 /* .SRC is a temp file unless specifically requested */
601
602 if ((i == ASL_FILE_SOURCE_OUTPUT) && (!Gbl_SourceOutputFlag))
603 {
604 continue;
605 }
606
607 /* .PRE is the preprocessor intermediate file */
608
609 if ((i == ASL_FILE_PREPROCESSOR) && (!Gbl_KeepPreprocessorTempFile))
610 {
611 continue;
612 }
613
614 FlPrintFile (FileId, "%14s %s - %u bytes\n",
615 Gbl_Files[i].ShortDescription,
616 Gbl_Files[i].Filename, FlGetFileSize (i));
617 }
618
619 /* Error summary */
620
621 FlPrintFile (FileId,
622 "\nCompilation complete. %u Errors, %u Warnings, %u Remarks",
623 Gbl_ExceptionCount[ASL_ERROR],
624 Gbl_ExceptionCount[ASL_WARNING] +
625 Gbl_ExceptionCount[ASL_WARNING2] +
626 Gbl_ExceptionCount[ASL_WARNING3],
627 Gbl_ExceptionCount[ASL_REMARK]);
628
629 if (Gbl_FileType != ASL_INPUT_TYPE_ASCII_DATA)
630 {
631 FlPrintFile (FileId, ", %u Optimizations",
632 Gbl_ExceptionCount[ASL_OPTIMIZATION]);
633
634 if (TotalFolds)
635 {
636 FlPrintFile (FileId, ", %u Constants Folded", TotalFolds);
637 }
638 }
639
640 FlPrintFile (FileId, "\n");
641 }
642
643
644 /*******************************************************************************
645 *
646 * FUNCTION: UtCheckIntegerRange
647 *
648 * PARAMETERS: Op - Integer parse node
649 * LowValue - Smallest allowed value
650 * HighValue - Largest allowed value
651 *
652 * RETURN: Op if OK, otherwise NULL
653 *
654 * DESCRIPTION: Check integer for an allowable range
655 *
656 ******************************************************************************/
657
658 ACPI_PARSE_OBJECT *
UtCheckIntegerRange(ACPI_PARSE_OBJECT * Op,UINT32 LowValue,UINT32 HighValue)659 UtCheckIntegerRange (
660 ACPI_PARSE_OBJECT *Op,
661 UINT32 LowValue,
662 UINT32 HighValue)
663 {
664
665 if (!Op)
666 {
667 return (NULL);
668 }
669
670 if ((Op->Asl.Value.Integer < LowValue) ||
671 (Op->Asl.Value.Integer > HighValue))
672 {
673 sprintf (MsgBuffer, "0x%X, allowable: 0x%X-0x%X",
674 (UINT32) Op->Asl.Value.Integer, LowValue, HighValue);
675
676 AslError (ASL_ERROR, ASL_MSG_RANGE, Op, MsgBuffer);
677 return (NULL);
678 }
679
680 return (Op);
681 }
682
683
684 /*******************************************************************************
685 *
686 * FUNCTION: UtInternalizeName
687 *
688 * PARAMETERS: ExternalName - Name to convert
689 * ConvertedName - Where the converted name is returned
690 *
691 * RETURN: Status
692 *
693 * DESCRIPTION: Convert an external (ASL) name to an internal (AML) name
694 *
695 ******************************************************************************/
696
697 ACPI_STATUS
UtInternalizeName(char * ExternalName,char ** ConvertedName)698 UtInternalizeName (
699 char *ExternalName,
700 char **ConvertedName)
701 {
702 ACPI_NAMESTRING_INFO Info;
703 ACPI_STATUS Status;
704
705
706 if (!ExternalName)
707 {
708 return (AE_OK);
709 }
710
711 /* Get the length of the new internal name */
712
713 Info.ExternalName = ExternalName;
714 AcpiNsGetInternalNameLength (&Info);
715
716 /* We need a segment to store the internal name */
717
718 Info.InternalName = UtLocalCacheCalloc (Info.Length);
719
720 /* Build the name */
721
722 Status = AcpiNsBuildInternalName (&Info);
723 if (ACPI_FAILURE (Status))
724 {
725 return (Status);
726 }
727
728 *ConvertedName = Info.InternalName;
729 return (AE_OK);
730 }
731
732
733 /*******************************************************************************
734 *
735 * FUNCTION: UtPadNameWithUnderscores
736 *
737 * PARAMETERS: NameSeg - Input nameseg
738 * PaddedNameSeg - Output padded nameseg
739 *
740 * RETURN: Padded nameseg.
741 *
742 * DESCRIPTION: Pads a NameSeg with underscores if necessary to form a full
743 * ACPI_NAME.
744 *
745 ******************************************************************************/
746
747 static void
UtPadNameWithUnderscores(char * NameSeg,char * PaddedNameSeg)748 UtPadNameWithUnderscores (
749 char *NameSeg,
750 char *PaddedNameSeg)
751 {
752 UINT32 i;
753
754
755 for (i = 0; (i < ACPI_NAME_SIZE); i++)
756 {
757 if (*NameSeg)
758 {
759 *PaddedNameSeg = *NameSeg;
760 NameSeg++;
761 }
762 else
763 {
764 *PaddedNameSeg = '_';
765 }
766
767 PaddedNameSeg++;
768 }
769 }
770
771
772 /*******************************************************************************
773 *
774 * FUNCTION: UtAttachNameseg
775 *
776 * PARAMETERS: Op - Parent parse node
777 * Name - Full ExternalName
778 *
779 * RETURN: None; Sets the NameSeg field in parent node
780 *
781 * DESCRIPTION: Extract the last nameseg of the ExternalName and store it
782 * in the NameSeg field of the Op.
783 *
784 ******************************************************************************/
785
786 static void
UtAttachNameseg(ACPI_PARSE_OBJECT * Op,char * Name)787 UtAttachNameseg (
788 ACPI_PARSE_OBJECT *Op,
789 char *Name)
790 {
791 char *NameSeg;
792 char PaddedNameSeg[4];
793
794
795 if (!Name)
796 {
797 return;
798 }
799
800 /* Look for the last dot in the namepath */
801
802 NameSeg = strrchr (Name, '.');
803 if (NameSeg)
804 {
805 /* Found last dot, we have also found the final nameseg */
806
807 NameSeg++;
808 UtPadNameWithUnderscores (NameSeg, PaddedNameSeg);
809 }
810 else
811 {
812 /* No dots in the namepath, there is only a single nameseg. */
813 /* Handle prefixes */
814
815 while (ACPI_IS_ROOT_PREFIX (*Name) ||
816 ACPI_IS_PARENT_PREFIX (*Name))
817 {
818 Name++;
819 }
820
821 /* Remaining string should be one single nameseg */
822
823 UtPadNameWithUnderscores (Name, PaddedNameSeg);
824 }
825
826 ACPI_MOVE_NAME (Op->Asl.NameSeg, PaddedNameSeg);
827 }
828
829
830 /*******************************************************************************
831 *
832 * FUNCTION: UtAttachNamepathToOwner
833 *
834 * PARAMETERS: Op - Parent parse node
835 * NameOp - Node that contains the name
836 *
837 * RETURN: Sets the ExternalName and Namepath in the parent node
838 *
839 * DESCRIPTION: Store the name in two forms in the parent node: The original
840 * (external) name, and the internalized name that is used within
841 * the ACPI namespace manager.
842 *
843 ******************************************************************************/
844
845 void
UtAttachNamepathToOwner(ACPI_PARSE_OBJECT * Op,ACPI_PARSE_OBJECT * NameOp)846 UtAttachNamepathToOwner (
847 ACPI_PARSE_OBJECT *Op,
848 ACPI_PARSE_OBJECT *NameOp)
849 {
850 ACPI_STATUS Status;
851
852
853 /* Full external path */
854
855 Op->Asl.ExternalName = NameOp->Asl.Value.String;
856
857 /* Save the NameOp for possible error reporting later */
858
859 Op->Asl.ParentMethod = (void *) NameOp;
860
861 /* Last nameseg of the path */
862
863 UtAttachNameseg (Op, Op->Asl.ExternalName);
864
865 /* Create internalized path */
866
867 Status = UtInternalizeName (NameOp->Asl.Value.String, &Op->Asl.Namepath);
868 if (ACPI_FAILURE (Status))
869 {
870 /* TBD: abort on no memory */
871 }
872 }
873
874
875 /*******************************************************************************
876 *
877 * FUNCTION: UtDoConstant
878 *
879 * PARAMETERS: String - Hex/Decimal/Octal
880 *
881 * RETURN: Converted Integer
882 *
883 * DESCRIPTION: Convert a string to an integer, with overflow/error checking.
884 *
885 ******************************************************************************/
886
887 UINT64
UtDoConstant(char * String)888 UtDoConstant (
889 char *String)
890 {
891 ACPI_STATUS Status;
892 UINT64 ConvertedInteger;
893 char ErrBuf[64];
894
895
896 Status = AcpiUtStrtoul64 (String, &ConvertedInteger);
897 if (ACPI_FAILURE (Status))
898 {
899 sprintf (ErrBuf, "While creating 64-bit constant: %s\n",
900 AcpiFormatException (Status));
901
902 AslCommonError (ASL_ERROR, ASL_MSG_SYNTAX, Gbl_CurrentLineNumber,
903 Gbl_LogicalLineNumber, Gbl_CurrentLineOffset,
904 Gbl_CurrentColumn, Gbl_Files[ASL_FILE_INPUT].Filename, ErrBuf);
905 }
906
907 return (ConvertedInteger);
908 }
909