1 2 /****************************************************************************** 3 * 4 * Module Name: aslutils -- compiler utilities 5 * $Revision: 1.72 $ 6 * 7 *****************************************************************************/ 8 9 /****************************************************************************** 10 * 11 * 1. Copyright Notice 12 * 13 * Some or all of this work - Copyright (c) 1999 - 2007, Intel Corp. 14 * All rights reserved. 15 * 16 * 2. License 17 * 18 * 2.1. This is your license from Intel Corp. under its intellectual property 19 * rights. You may have additional license terms from the party that provided 20 * you this software, covering your right to use that party's intellectual 21 * property rights. 22 * 23 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 24 * copy of the source code appearing in this file ("Covered Code") an 25 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 26 * base code distributed originally by Intel ("Original Intel Code") to copy, 27 * make derivatives, distribute, use and display any portion of the Covered 28 * Code in any form, with the right to sublicense such rights; and 29 * 30 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 31 * license (with the right to sublicense), under only those claims of Intel 32 * patents that are infringed by the Original Intel Code, to make, use, sell, 33 * offer to sell, and import the Covered Code and derivative works thereof 34 * solely to the minimum extent necessary to exercise the above copyright 35 * license, and in no event shall the patent license extend to any additions 36 * to or modifications of the Original Intel Code. No other license or right 37 * is granted directly or by implication, estoppel or otherwise; 38 * 39 * The above copyright and patent license is granted only if the following 40 * conditions are met: 41 * 42 * 3. Conditions 43 * 44 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 45 * Redistribution of source code of any substantial portion of the Covered 46 * Code or modification with rights to further distribute source must include 47 * the above Copyright Notice, the above License, this list of Conditions, 48 * and the following Disclaimer and Export Compliance provision. In addition, 49 * Licensee must cause all Covered Code to which Licensee contributes to 50 * contain a file documenting the changes Licensee made to create that Covered 51 * Code and the date of any change. Licensee must include in that file the 52 * documentation of any changes made by any predecessor Licensee. Licensee 53 * must include a prominent statement that the modification is derived, 54 * directly or indirectly, from Original Intel Code. 55 * 56 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 57 * Redistribution of source code of any substantial portion of the Covered 58 * Code or modification without rights to further distribute source must 59 * include the following Disclaimer and Export Compliance provision in the 60 * documentation and/or other materials provided with distribution. In 61 * addition, Licensee may not authorize further sublicense of source of any 62 * portion of the Covered Code, and must include terms to the effect that the 63 * license from Licensee to its licensee is limited to the intellectual 64 * property embodied in the software Licensee provides to its licensee, and 65 * not to intellectual property embodied in modifications its licensee may 66 * make. 67 * 68 * 3.3. Redistribution of Executable. Redistribution in executable form of any 69 * substantial portion of the Covered Code or modification must reproduce the 70 * above Copyright Notice, and the following Disclaimer and Export Compliance 71 * provision in the documentation and/or other materials provided with the 72 * distribution. 73 * 74 * 3.4. Intel retains all right, title, and interest in and to the Original 75 * Intel Code. 76 * 77 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 78 * Intel shall be used in advertising or otherwise to promote the sale, use or 79 * other dealings in products derived from or relating to the Covered Code 80 * without prior written authorization from Intel. 81 * 82 * 4. Disclaimer and Export Compliance 83 * 84 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 85 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 86 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 87 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 88 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 89 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 90 * PARTICULAR PURPOSE. 91 * 92 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 93 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 94 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 95 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 96 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 97 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 98 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 99 * LIMITED REMEDY. 100 * 101 * 4.3. Licensee shall not export, either directly or indirectly, any of this 102 * software or system incorporating such software without first obtaining any 103 * required license or other approval from the U. S. Department of Commerce or 104 * any other agency or department of the United States Government. In the 105 * event Licensee exports any such software from the United States or 106 * re-exports any such software from a foreign destination, Licensee shall 107 * ensure that the distribution and export/re-export of the software is in 108 * compliance with all laws, regulations, orders, or other restrictions of the 109 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 110 * any of its subsidiaries will export/re-export any technical data, process, 111 * software, or service, directly or indirectly, to any country for which the 112 * United States government or any agency thereof requires an export license, 113 * other governmental approval, or letter of assurance, without first obtaining 114 * such license, approval or letter. 115 * 116 *****************************************************************************/ 117 118 119 #include <contrib/dev/acpica/compiler/aslcompiler.h> 120 #include "aslcompiler.y.h" 121 #include <contrib/dev/acpica/acnamesp.h> 122 #include <contrib/dev/acpica/amlcode.h> 123 124 #define _COMPONENT ACPI_COMPILER 125 ACPI_MODULE_NAME ("aslutils") 126 127 #ifdef _USE_BERKELEY_YACC 128 extern const char * const AslCompilername[]; 129 static const char * const *yytname = &AslCompilername[254]; 130 #else 131 extern const char * const yytname[]; 132 #endif 133 134 /* Local prototypes */ 135 136 static ACPI_STATUS 137 UtStrtoul64 ( 138 char *String, 139 UINT32 Base, 140 ACPI_INTEGER *RetInteger); 141 142 static void 143 UtPadNameWithUnderscores ( 144 char *NameSeg, 145 char *PaddedNameSeg); 146 147 static void 148 UtAttachNameseg ( 149 ACPI_PARSE_OBJECT *Op, 150 char *Name); 151 152 153 /******************************************************************************* 154 * 155 * FUNCTION: AcpiPsDisplayConstantOpcodes 156 * 157 * PARAMETERS: None 158 * 159 * RETURN: None 160 * 161 * DESCRIPTION: Print AML opcodes that can be used in constant expressions. 162 * 163 ******************************************************************************/ 164 165 void 166 UtDisplayConstantOpcodes ( 167 void) 168 { 169 UINT32 i; 170 171 172 printf ("Constant expression opcode information\n\n"); 173 174 for (i = 0; i < sizeof (AcpiGbl_AmlOpInfo) / sizeof (ACPI_OPCODE_INFO); i++) 175 { 176 if (AcpiGbl_AmlOpInfo[i].Flags & AML_CONSTANT) 177 { 178 printf ("%s\n", AcpiGbl_AmlOpInfo[i].Name); 179 } 180 } 181 } 182 183 184 /******************************************************************************* 185 * 186 * FUNCTION: UtLocalCalloc 187 * 188 * PARAMETERS: Size - Bytes to be allocated 189 * 190 * RETURN: Pointer to the allocated memory. Guaranteed to be valid. 191 * 192 * DESCRIPTION: Allocate zero-initialized memory. Aborts the compile on an 193 * allocation failure, on the assumption that nothing more can be 194 * accomplished. 195 * 196 ******************************************************************************/ 197 198 void * 199 UtLocalCalloc ( 200 UINT32 Size) 201 { 202 void *Allocated; 203 204 205 Allocated = ACPI_ALLOCATE_ZEROED (Size); 206 if (!Allocated) 207 { 208 AslCommonError (ASL_ERROR, ASL_MSG_MEMORY_ALLOCATION, 209 Gbl_CurrentLineNumber, Gbl_LogicalLineNumber, 210 Gbl_InputByteCount, Gbl_CurrentColumn, 211 Gbl_Files[ASL_FILE_INPUT].Filename, NULL); 212 exit (1); 213 } 214 215 TotalAllocations++; 216 TotalAllocated += Size; 217 return (Allocated); 218 } 219 220 221 /******************************************************************************* 222 * 223 * FUNCTION: UtBeginEvent 224 * 225 * PARAMETERS: Name - Ascii name of this event 226 * 227 * RETURN: Event - Event number (integer index) 228 * 229 * DESCRIPTION: Saves the current time with this event 230 * 231 ******************************************************************************/ 232 233 UINT8 234 UtBeginEvent ( 235 char *Name) 236 { 237 238 if (AslGbl_NextEvent >= ASL_NUM_EVENTS) 239 { 240 AcpiOsPrintf ("Ran out of compiler event structs!\n"); 241 return (AslGbl_NextEvent); 242 } 243 244 /* Init event with current (start) time */ 245 246 AslGbl_Events[AslGbl_NextEvent].StartTime = AcpiOsGetTimer (); 247 AslGbl_Events[AslGbl_NextEvent].EventName = Name; 248 AslGbl_Events[AslGbl_NextEvent].Valid = TRUE; 249 250 return (AslGbl_NextEvent++); 251 } 252 253 254 /******************************************************************************* 255 * 256 * FUNCTION: UtEndEvent 257 * 258 * PARAMETERS: Event - Event number (integer index) 259 * 260 * RETURN: None 261 * 262 * DESCRIPTION: Saves the current time (end time) with this event 263 * 264 ******************************************************************************/ 265 266 void 267 UtEndEvent ( 268 UINT8 Event) 269 { 270 271 if (Event >= ASL_NUM_EVENTS) 272 { 273 return; 274 } 275 276 /* Insert end time for event */ 277 278 AslGbl_Events[Event].EndTime = AcpiOsGetTimer (); 279 } 280 281 282 /******************************************************************************* 283 * 284 * FUNCTION: UtHexCharToValue 285 * 286 * PARAMETERS: HexChar - Hex character in Ascii 287 * 288 * RETURN: The binary value of the hex character 289 * 290 * DESCRIPTION: Perform ascii-to-hex translation 291 * 292 ******************************************************************************/ 293 294 UINT8 295 UtHexCharToValue ( 296 int HexChar) 297 { 298 299 if (HexChar <= 0x39) 300 { 301 return ((UINT8) (HexChar - 0x30)); 302 } 303 304 if (HexChar <= 0x46) 305 { 306 return ((UINT8) (HexChar - 0x37)); 307 } 308 309 return ((UINT8) (HexChar - 0x57)); 310 } 311 312 313 /******************************************************************************* 314 * 315 * FUNCTION: UtConvertByteToHex 316 * 317 * PARAMETERS: RawByte - Binary data 318 * Buffer - Pointer to where the hex bytes will be stored 319 * 320 * RETURN: Ascii hex byte is stored in Buffer. 321 * 322 * DESCRIPTION: Perform hex-to-ascii translation. The return data is prefixed 323 * with "0x" 324 * 325 ******************************************************************************/ 326 327 void 328 UtConvertByteToHex ( 329 UINT8 RawByte, 330 UINT8 *Buffer) 331 { 332 333 Buffer[0] = '0'; 334 Buffer[1] = 'x'; 335 336 Buffer[2] = (UINT8) hex[(RawByte >> 4) & 0xF]; 337 Buffer[3] = (UINT8) hex[RawByte & 0xF]; 338 } 339 340 341 /******************************************************************************* 342 * 343 * FUNCTION: UtConvertByteToAsmHex 344 * 345 * PARAMETERS: RawByte - Binary data 346 * Buffer - Pointer to where the hex bytes will be stored 347 * 348 * RETURN: Ascii hex byte is stored in Buffer. 349 * 350 * DESCRIPTION: Perform hex-to-ascii translation. The return data is prefixed 351 * with "0x" 352 * 353 ******************************************************************************/ 354 355 void 356 UtConvertByteToAsmHex ( 357 UINT8 RawByte, 358 UINT8 *Buffer) 359 { 360 361 Buffer[0] = '0'; 362 Buffer[1] = (UINT8) hex[(RawByte >> 4) & 0xF]; 363 Buffer[2] = (UINT8) hex[RawByte & 0xF]; 364 Buffer[3] = 'h'; 365 } 366 367 368 /******************************************************************************* 369 * 370 * FUNCTION: DbgPrint 371 * 372 * PARAMETERS: Type - Type of output 373 * Fmt - Printf format string 374 * ... - variable printf list 375 * 376 * RETURN: None 377 * 378 * DESCRIPTION: Conditional print statement. Prints to stderr only if the 379 * debug flag is set. 380 * 381 ******************************************************************************/ 382 383 void 384 DbgPrint ( 385 UINT32 Type, 386 char *Fmt, 387 ...) 388 { 389 va_list Args; 390 391 392 va_start (Args, Fmt); 393 394 if (!Gbl_DebugFlag) 395 { 396 return; 397 } 398 399 if ((Type == ASL_PARSE_OUTPUT) && 400 (!(AslCompilerdebug))) 401 { 402 return; 403 } 404 405 (void) vfprintf (stderr, Fmt, Args); 406 va_end (Args); 407 return; 408 } 409 410 411 /******************************************************************************* 412 * 413 * FUNCTION: UtPrintFormattedName 414 * 415 * PARAMETERS: ParseOpcode - Parser keyword ID 416 * Level - Indentation level 417 * 418 * RETURN: None 419 * 420 * DESCRIPTION: Print the ascii name of the parse opcode. 421 * 422 ******************************************************************************/ 423 424 #define TEXT_OFFSET 10 425 426 void 427 UtPrintFormattedName ( 428 UINT16 ParseOpcode, 429 UINT32 Level) 430 { 431 432 if (Level) 433 { 434 DbgPrint (ASL_TREE_OUTPUT, 435 "%*s", (3 * Level), " "); 436 } 437 DbgPrint (ASL_TREE_OUTPUT, 438 " %-20.20s", UtGetOpName (ParseOpcode)); 439 440 if (Level < TEXT_OFFSET) 441 { 442 DbgPrint (ASL_TREE_OUTPUT, 443 "%*s", (TEXT_OFFSET - Level) * 3, " "); 444 } 445 } 446 447 448 /******************************************************************************* 449 * 450 * FUNCTION: UtSetParseOpName 451 * 452 * PARAMETERS: Op 453 * 454 * RETURN: None 455 * 456 * DESCRIPTION: Insert the ascii name of the parse opcode 457 * 458 ******************************************************************************/ 459 460 void 461 UtSetParseOpName ( 462 ACPI_PARSE_OBJECT *Op) 463 { 464 465 strncpy (Op->Asl.ParseOpName, UtGetOpName (Op->Asl.ParseOpcode), 466 ACPI_MAX_PARSEOP_NAME); 467 } 468 469 470 /******************************************************************************* 471 * 472 * FUNCTION: UtGetOpName 473 * 474 * PARAMETERS: ParseOpcode - Parser keyword ID 475 * 476 * RETURN: Pointer to the opcode name 477 * 478 * DESCRIPTION: Get the ascii name of the parse opcode 479 * 480 ******************************************************************************/ 481 482 char * 483 UtGetOpName ( 484 UINT32 ParseOpcode) 485 { 486 487 /* 488 * First entries (ASL_YYTNAME_START) in yytname are special reserved names. 489 * Ignore first 8 characters of the name 490 */ 491 return ((char *) yytname 492 [(ParseOpcode - ASL_FIRST_PARSE_OPCODE) + ASL_YYTNAME_START] + 8); 493 } 494 495 496 /******************************************************************************* 497 * 498 * FUNCTION: UtDisplaySummary 499 * 500 * PARAMETERS: FileID - ID of outpout file 501 * 502 * RETURN: None 503 * 504 * DESCRIPTION: Display compilation statistics 505 * 506 ******************************************************************************/ 507 508 void 509 UtDisplaySummary ( 510 UINT32 FileId) 511 { 512 513 if (FileId != ASL_FILE_STDOUT) 514 { 515 /* Compiler name and version number */ 516 517 FlPrintFile (FileId, "%s version %X [%s]\n", 518 CompilerId, (UINT32) ACPI_CA_VERSION, __DATE__); 519 } 520 521 /* Input/Output summary */ 522 523 FlPrintFile (FileId, 524 "ASL Input: %s - %d lines, %d bytes, %d keywords\n", 525 Gbl_Files[ASL_FILE_INPUT].Filename, Gbl_CurrentLineNumber, 526 Gbl_InputByteCount, TotalKeywords); 527 528 /* AML summary */ 529 530 if ((Gbl_ExceptionCount[ASL_ERROR] == 0) || (Gbl_IgnoreErrors)) 531 { 532 FlPrintFile (FileId, 533 "AML Output: %s - %d bytes %d named objects %d executable opcodes\n\n", 534 Gbl_Files[ASL_FILE_AML_OUTPUT].Filename, Gbl_TableLength, 535 TotalNamedObjects, TotalExecutableOpcodes); 536 } 537 538 /* Error summary */ 539 540 FlPrintFile (FileId, 541 "Compilation complete. %d Errors, %d Warnings, %d Remarks, %d Optimizations\n", 542 Gbl_ExceptionCount[ASL_ERROR], 543 Gbl_ExceptionCount[ASL_WARNING] + 544 Gbl_ExceptionCount[ASL_WARNING2] + 545 Gbl_ExceptionCount[ASL_WARNING3], 546 Gbl_ExceptionCount[ASL_REMARK], 547 Gbl_ExceptionCount[ASL_OPTIMIZATION]); 548 } 549 550 551 /******************************************************************************* 552 * 553 * FUNCTION: UtDisplaySummary 554 * 555 * PARAMETERS: Op - Integer parse node 556 * LowValue - Smallest allowed value 557 * HighValue - Largest allowed value 558 * 559 * RETURN: Op if OK, otherwise NULL 560 * 561 * DESCRIPTION: Check integer for an allowable range 562 * 563 ******************************************************************************/ 564 565 ACPI_PARSE_OBJECT * 566 UtCheckIntegerRange ( 567 ACPI_PARSE_OBJECT *Op, 568 UINT32 LowValue, 569 UINT32 HighValue) 570 { 571 char *ParseError = NULL; 572 char Buffer[64]; 573 574 575 if (!Op) 576 { 577 return NULL; 578 } 579 580 if (Op->Asl.Value.Integer < LowValue) 581 { 582 ParseError = "Value below valid range"; 583 Op->Asl.Value.Integer = LowValue; 584 } 585 586 if (Op->Asl.Value.Integer > HighValue) 587 { 588 ParseError = "Value above valid range"; 589 Op->Asl.Value.Integer = HighValue; 590 } 591 592 if (ParseError) 593 { 594 sprintf (Buffer, "%s 0x%X-0x%X", ParseError, LowValue, HighValue); 595 AslCompilererror (Buffer); 596 597 return NULL; 598 } 599 600 return Op; 601 } 602 603 604 /******************************************************************************* 605 * 606 * FUNCTION: UtGetStringBuffer 607 * 608 * PARAMETERS: Length - Size of buffer requested 609 * 610 * RETURN: Pointer to the buffer. Aborts on allocation failure 611 * 612 * DESCRIPTION: Allocate a string buffer. Bypass the local 613 * dynamic memory manager for performance reasons (This has a 614 * major impact on the speed of the compiler.) 615 * 616 ******************************************************************************/ 617 618 char * 619 UtGetStringBuffer ( 620 UINT32 Length) 621 { 622 char *Buffer; 623 624 625 if ((Gbl_StringCacheNext + Length) >= Gbl_StringCacheLast) 626 { 627 Gbl_StringCacheNext = UtLocalCalloc (ASL_STRING_CACHE_SIZE + Length); 628 Gbl_StringCacheLast = Gbl_StringCacheNext + ASL_STRING_CACHE_SIZE + 629 Length; 630 } 631 632 Buffer = Gbl_StringCacheNext; 633 Gbl_StringCacheNext += Length; 634 635 return (Buffer); 636 } 637 638 639 /******************************************************************************* 640 * 641 * FUNCTION: UtInternalizeName 642 * 643 * PARAMETERS: ExternalName - Name to convert 644 * ConvertedName - Where the converted name is returned 645 * 646 * RETURN: Status 647 * 648 * DESCRIPTION: Convert an external (ASL) name to an internal (AML) name 649 * 650 ******************************************************************************/ 651 652 ACPI_STATUS 653 UtInternalizeName ( 654 char *ExternalName, 655 char **ConvertedName) 656 { 657 ACPI_NAMESTRING_INFO Info; 658 ACPI_STATUS Status; 659 660 661 if (!ExternalName) 662 { 663 return (AE_OK); 664 } 665 666 /* Get the length of the new internal name */ 667 668 Info.ExternalName = ExternalName; 669 AcpiNsGetInternalNameLength (&Info); 670 671 /* We need a segment to store the internal name */ 672 673 Info.InternalName = UtGetStringBuffer (Info.Length); 674 if (!Info.InternalName) 675 { 676 return (AE_NO_MEMORY); 677 } 678 679 /* Build the name */ 680 681 Status = AcpiNsBuildInternalName (&Info); 682 if (ACPI_FAILURE (Status)) 683 { 684 return (Status); 685 } 686 687 *ConvertedName = Info.InternalName; 688 return (AE_OK); 689 } 690 691 692 /******************************************************************************* 693 * 694 * FUNCTION: UtPadNameWithUnderscores 695 * 696 * PARAMETERS: NameSeg - Input nameseg 697 * PaddedNameSeg - Output padded nameseg 698 * 699 * RETURN: Padded nameseg. 700 * 701 * DESCRIPTION: Pads a NameSeg with underscores if necessary to form a full 702 * ACPI_NAME. 703 * 704 ******************************************************************************/ 705 706 static void 707 UtPadNameWithUnderscores ( 708 char *NameSeg, 709 char *PaddedNameSeg) 710 { 711 UINT32 i; 712 713 714 for (i = 0; (i < ACPI_NAME_SIZE); i++) 715 { 716 if (*NameSeg) 717 { 718 *PaddedNameSeg = *NameSeg; 719 NameSeg++; 720 } 721 else 722 { 723 *PaddedNameSeg = '_'; 724 } 725 PaddedNameSeg++; 726 } 727 } 728 729 730 /******************************************************************************* 731 * 732 * FUNCTION: UtAttachNameseg 733 * 734 * PARAMETERS: Op - Parent parse node 735 * Name - Full ExternalName 736 * 737 * RETURN: None; Sets the NameSeg field in parent node 738 * 739 * DESCRIPTION: Extract the last nameseg of the ExternalName and store it 740 * in the NameSeg field of the Op. 741 * 742 ******************************************************************************/ 743 744 static void 745 UtAttachNameseg ( 746 ACPI_PARSE_OBJECT *Op, 747 char *Name) 748 { 749 char *NameSeg; 750 char PaddedNameSeg[4]; 751 752 753 if (!Name) 754 { 755 return; 756 } 757 758 /* Look for the last dot in the namepath */ 759 760 NameSeg = strrchr (Name, '.'); 761 if (NameSeg) 762 { 763 /* Found last dot, we have also found the final nameseg */ 764 765 NameSeg++; 766 UtPadNameWithUnderscores (NameSeg, PaddedNameSeg); 767 } 768 else 769 { 770 /* No dots in the namepath, there is only a single nameseg. */ 771 /* Handle prefixes */ 772 773 while ((*Name == '\\') || (*Name == '^')) 774 { 775 Name++; 776 } 777 778 /* Remaing string should be one single nameseg */ 779 780 UtPadNameWithUnderscores (Name, PaddedNameSeg); 781 } 782 783 strncpy (Op->Asl.NameSeg, PaddedNameSeg, 4); 784 } 785 786 787 /******************************************************************************* 788 * 789 * FUNCTION: UtAttachNamepathToOwner 790 * 791 * PARAMETERS: Op - Parent parse node 792 * NameOp - Node that contains the name 793 * 794 * RETURN: Sets the ExternalName and Namepath in the parent node 795 * 796 * DESCRIPTION: Store the name in two forms in the parent node: The original 797 * (external) name, and the internalized name that is used within 798 * the ACPI namespace manager. 799 * 800 ******************************************************************************/ 801 802 void 803 UtAttachNamepathToOwner ( 804 ACPI_PARSE_OBJECT *Op, 805 ACPI_PARSE_OBJECT *NameOp) 806 { 807 ACPI_STATUS Status; 808 809 810 /* Full external path */ 811 812 Op->Asl.ExternalName = NameOp->Asl.Value.String; 813 814 /* Save the NameOp for possible error reporting later */ 815 816 Op->Asl.ParentMethod = (void *) NameOp; 817 818 /* Last nameseg of the path */ 819 820 UtAttachNameseg (Op, Op->Asl.ExternalName); 821 822 /* Create internalized path */ 823 824 Status = UtInternalizeName (NameOp->Asl.Value.String, &Op->Asl.Namepath); 825 if (ACPI_FAILURE (Status)) 826 { 827 /* TBD: abort on no memory */ 828 } 829 } 830 831 832 /******************************************************************************* 833 * 834 * FUNCTION: UtDoConstant 835 * 836 * PARAMETERS: String - Hex, Octal, or Decimal string 837 * 838 * RETURN: Converted Integer 839 * 840 * DESCRIPTION: Convert a string to an integer. With error checking. 841 * 842 ******************************************************************************/ 843 844 ACPI_INTEGER 845 UtDoConstant ( 846 char *String) 847 { 848 ACPI_STATUS Status; 849 ACPI_INTEGER Converted; 850 char ErrBuf[64]; 851 852 853 Status = UtStrtoul64 (String, 0, &Converted); 854 if (ACPI_FAILURE (Status)) 855 { 856 sprintf (ErrBuf, "%s %s\n", "Conversion error:", 857 AcpiFormatException (Status)); 858 AslCompilererror (ErrBuf); 859 } 860 861 return (Converted); 862 } 863 864 865 /* TBD: use version in ACPI CA main code base? */ 866 867 /******************************************************************************* 868 * 869 * FUNCTION: UtStrtoul64 870 * 871 * PARAMETERS: String - Null terminated string 872 * Terminater - Where a pointer to the terminating byte is 873 * returned 874 * Base - Radix of the string 875 * 876 * RETURN: Converted value 877 * 878 * DESCRIPTION: Convert a string into an unsigned value. 879 * 880 ******************************************************************************/ 881 882 static ACPI_STATUS 883 UtStrtoul64 ( 884 char *String, 885 UINT32 Base, 886 ACPI_INTEGER *RetInteger) 887 { 888 UINT32 Index; 889 UINT32 Sign; 890 ACPI_INTEGER ReturnValue = 0; 891 ACPI_STATUS Status = AE_OK; 892 893 894 *RetInteger = 0; 895 896 switch (Base) 897 { 898 case 0: 899 case 8: 900 case 10: 901 case 16: 902 break; 903 904 default: 905 /* 906 * The specified Base parameter is not in the domain of 907 * this function: 908 */ 909 return (AE_BAD_PARAMETER); 910 } 911 912 /* Skip over any white space in the buffer: */ 913 914 while (isspace (*String) || *String == '\t') 915 { 916 ++String; 917 } 918 919 /* 920 * The buffer may contain an optional plus or minus sign. 921 * If it does, then skip over it but remember what is was: 922 */ 923 if (*String == '-') 924 { 925 Sign = NEGATIVE; 926 ++String; 927 } 928 else if (*String == '+') 929 { 930 ++String; 931 Sign = POSITIVE; 932 } 933 else 934 { 935 Sign = POSITIVE; 936 } 937 938 /* 939 * If the input parameter Base is zero, then we need to 940 * determine if it is octal, decimal, or hexadecimal: 941 */ 942 if (Base == 0) 943 { 944 if (*String == '0') 945 { 946 if (tolower (*(++String)) == 'x') 947 { 948 Base = 16; 949 ++String; 950 } 951 else 952 { 953 Base = 8; 954 } 955 } 956 else 957 { 958 Base = 10; 959 } 960 } 961 962 /* 963 * For octal and hexadecimal bases, skip over the leading 964 * 0 or 0x, if they are present. 965 */ 966 if (Base == 8 && *String == '0') 967 { 968 String++; 969 } 970 971 if (Base == 16 && 972 *String == '0' && 973 tolower (*(++String)) == 'x') 974 { 975 String++; 976 } 977 978 /* Main loop: convert the string to an unsigned long */ 979 980 while (*String) 981 { 982 if (isdigit (*String)) 983 { 984 Index = ((UINT8) *String) - '0'; 985 } 986 else 987 { 988 Index = (UINT8) toupper (*String); 989 if (isupper ((char) Index)) 990 { 991 Index = Index - 'A' + 10; 992 } 993 else 994 { 995 goto ErrorExit; 996 } 997 } 998 999 if (Index >= Base) 1000 { 1001 goto ErrorExit; 1002 } 1003 1004 /* Check to see if value is out of range: */ 1005 1006 if (ReturnValue > ((ACPI_INTEGER_MAX - (ACPI_INTEGER) Index) / 1007 (ACPI_INTEGER) Base)) 1008 { 1009 goto ErrorExit; 1010 } 1011 else 1012 { 1013 ReturnValue *= Base; 1014 ReturnValue += Index; 1015 } 1016 1017 ++String; 1018 } 1019 1020 1021 /* If a minus sign was present, then "the conversion is negated": */ 1022 1023 if (Sign == NEGATIVE) 1024 { 1025 ReturnValue = (ACPI_UINT32_MAX - ReturnValue) + 1; 1026 } 1027 1028 *RetInteger = ReturnValue; 1029 return (Status); 1030 1031 1032 ErrorExit: 1033 switch (Base) 1034 { 1035 case 8: 1036 Status = AE_BAD_OCTAL_CONSTANT; 1037 break; 1038 1039 case 10: 1040 Status = AE_BAD_DECIMAL_CONSTANT; 1041 break; 1042 1043 case 16: 1044 Status = AE_BAD_HEX_CONSTANT; 1045 break; 1046 1047 default: 1048 /* Base validated above */ 1049 break; 1050 } 1051 1052 return (Status); 1053 } 1054 1055 1056