1 2 /****************************************************************************** 3 * 4 * Module Name: aslutils -- compiler utilities 5 * $Revision: 1.66 $ 6 * 7 *****************************************************************************/ 8 9 /****************************************************************************** 10 * 11 * 1. Copyright Notice 12 * 13 * Some or all of this work - Copyright (c) 1999 - 2005, 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_MEM_CALLOCATE (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'; 362 363 Buffer[1] = (UINT8) hex[(RawByte >> 4) & 0xF]; 364 Buffer[2] = (UINT8) hex[RawByte & 0xF]; 365 Buffer[3] = 'h'; 366 } 367 368 369 /******************************************************************************* 370 * 371 * FUNCTION: DbgPrint 372 * 373 * PARAMETERS: Type - Type of output 374 * Fmt - Printf format string 375 * ... - variable printf list 376 * 377 * RETURN: None 378 * 379 * DESCRIPTION: Conditional print statement. Prints to stderr only if the 380 * debug flag is set. 381 * 382 ******************************************************************************/ 383 384 void 385 DbgPrint ( 386 UINT32 Type, 387 char *Fmt, 388 ...) 389 { 390 va_list Args; 391 392 393 va_start (Args, Fmt); 394 395 if (!Gbl_DebugFlag) 396 { 397 return; 398 } 399 400 if ((Type == ASL_PARSE_OUTPUT) && 401 (!(AslCompilerdebug))) 402 { 403 return; 404 } 405 406 (void) vfprintf (stderr, Fmt, Args); 407 va_end (Args); 408 return; 409 } 410 411 412 /******************************************************************************* 413 * 414 * FUNCTION: UtPrintFormattedName 415 * 416 * PARAMETERS: ParseOpcode - Parser keyword ID 417 * Level - Indentation level 418 * 419 * RETURN: None 420 * 421 * DESCRIPTION: Print the ascii name of the parse opcode. 422 * 423 ******************************************************************************/ 424 425 #define TEXT_OFFSET 10 426 427 void 428 UtPrintFormattedName ( 429 UINT16 ParseOpcode, 430 UINT32 Level) 431 { 432 433 DbgPrint (ASL_TREE_OUTPUT, 434 "%*s %-16.16s", (3 * Level), " ", 435 UtGetOpName (ParseOpcode)); 436 437 if (Level < TEXT_OFFSET) 438 { 439 DbgPrint (ASL_TREE_OUTPUT, 440 "%*s", (TEXT_OFFSET - Level) * 3, " "); 441 } 442 } 443 444 445 /******************************************************************************* 446 * 447 * FUNCTION: UtSetParseOpName 448 * 449 * PARAMETERS: Op 450 * 451 * RETURN: None 452 * 453 * DESCRIPTION: Insert the ascii name of the parse opcode 454 * 455 ******************************************************************************/ 456 457 void 458 UtSetParseOpName ( 459 ACPI_PARSE_OBJECT *Op) 460 { 461 462 strncpy (Op->Asl.ParseOpName, UtGetOpName (Op->Asl.ParseOpcode), 12); 463 } 464 465 466 /******************************************************************************* 467 * 468 * FUNCTION: UtGetOpName 469 * 470 * PARAMETERS: ParseOpcode - Parser keyword ID 471 * 472 * RETURN: Pointer to the opcode name 473 * 474 * DESCRIPTION: Get the ascii name of the parse opcode 475 * 476 ******************************************************************************/ 477 478 char * 479 UtGetOpName ( 480 UINT32 ParseOpcode) 481 { 482 483 /* 484 * First entries (ASL_YYTNAME_START) in yytname are special reserved names. 485 * Ignore first 8 characters of the name 486 */ 487 return ((char *) yytname [(ParseOpcode - ASL_FIRST_PARSE_OPCODE) + ASL_YYTNAME_START] + 8); 488 } 489 490 491 /******************************************************************************* 492 * 493 * FUNCTION: UtDisplaySummary 494 * 495 * PARAMETERS: FileID - ID of outpout file 496 * 497 * RETURN: None 498 * 499 * DESCRIPTION: Display compilation statistics 500 * 501 ******************************************************************************/ 502 503 void 504 UtDisplaySummary ( 505 UINT32 FileId) 506 { 507 508 if (FileId != ASL_FILE_STDOUT) 509 { 510 /* Compiler name and version number */ 511 512 FlPrintFile (FileId, "%s version %X [%s]\n", 513 CompilerId, (UINT32) ACPI_CA_VERSION, __DATE__); 514 } 515 516 /* Input/Output summary */ 517 518 FlPrintFile (FileId, 519 "ASL Input: %s - %d lines, %d bytes, %d keywords\n", 520 Gbl_Files[ASL_FILE_INPUT].Filename, Gbl_CurrentLineNumber, 521 Gbl_InputByteCount, TotalKeywords); 522 523 /* AML summary */ 524 525 if ((Gbl_ExceptionCount[ASL_ERROR] == 0) || (Gbl_IgnoreErrors)) 526 { 527 FlPrintFile (FileId, 528 "AML Output: %s - %d bytes %d named objects %d executable opcodes\n\n", 529 Gbl_Files[ASL_FILE_AML_OUTPUT].Filename, Gbl_TableLength, 530 TotalNamedObjects, TotalExecutableOpcodes); 531 } 532 533 /* Error summary */ 534 535 FlPrintFile (FileId, 536 "Compilation complete. %d Errors, %d Warnings, %d Remarks, %d Optimizations\n", 537 Gbl_ExceptionCount[ASL_ERROR], 538 Gbl_ExceptionCount[ASL_WARNING], 539 Gbl_ExceptionCount[ASL_REMARK], 540 Gbl_ExceptionCount[ASL_OPTIMIZATION]); 541 } 542 543 544 /******************************************************************************* 545 * 546 * FUNCTION: UtDisplaySummary 547 * 548 * PARAMETERS: Op - Integer parse node 549 * LowValue - Smallest allowed value 550 * HighValue - Largest allowed value 551 * 552 * RETURN: Op if OK, otherwise NULL 553 * 554 * DESCRIPTION: Check integer for an allowable range 555 * 556 ******************************************************************************/ 557 558 ACPI_PARSE_OBJECT * 559 UtCheckIntegerRange ( 560 ACPI_PARSE_OBJECT *Op, 561 UINT32 LowValue, 562 UINT32 HighValue) 563 { 564 char *ParseError = NULL; 565 char Buffer[64]; 566 567 568 if (!Op) 569 { 570 return NULL; 571 } 572 573 if (Op->Asl.Value.Integer < LowValue) 574 { 575 ParseError = "Value below valid range"; 576 Op->Asl.Value.Integer = LowValue; 577 } 578 579 if (Op->Asl.Value.Integer > HighValue) 580 { 581 ParseError = "Value above valid range"; 582 Op->Asl.Value.Integer = HighValue; 583 } 584 585 if (ParseError) 586 { 587 sprintf (Buffer, "%s 0x%X-0x%X", ParseError, LowValue, HighValue); 588 AslCompilererror (Buffer); 589 590 return NULL; 591 } 592 593 return Op; 594 } 595 596 597 /******************************************************************************* 598 * 599 * FUNCTION: UtGetStringBuffer 600 * 601 * PARAMETERS: Length - Size of buffer requested 602 * 603 * RETURN: Pointer to the buffer. Aborts on allocation failure 604 * 605 * DESCRIPTION: Allocate a string buffer. Bypass the local 606 * dynamic memory manager for performance reasons (This has a 607 * major impact on the speed of the compiler.) 608 * 609 ******************************************************************************/ 610 611 char * 612 UtGetStringBuffer ( 613 UINT32 Length) 614 { 615 char *Buffer; 616 617 618 if ((Gbl_StringCacheNext + Length) >= Gbl_StringCacheLast) 619 { 620 Gbl_StringCacheNext = UtLocalCalloc (ASL_STRING_CACHE_SIZE + Length); 621 Gbl_StringCacheLast = Gbl_StringCacheNext + ASL_STRING_CACHE_SIZE + 622 Length; 623 } 624 625 Buffer = Gbl_StringCacheNext; 626 Gbl_StringCacheNext += Length; 627 628 return (Buffer); 629 } 630 631 632 /******************************************************************************* 633 * 634 * FUNCTION: UtInternalizeName 635 * 636 * PARAMETERS: ExternalName - Name to convert 637 * ConvertedName - Where the converted name is returned 638 * 639 * RETURN: Status 640 * 641 * DESCRIPTION: Convert an external (ASL) name to an internal (AML) name 642 * 643 ******************************************************************************/ 644 645 ACPI_STATUS 646 UtInternalizeName ( 647 char *ExternalName, 648 char **ConvertedName) 649 { 650 ACPI_NAMESTRING_INFO Info; 651 ACPI_STATUS Status; 652 653 654 if (!ExternalName) 655 { 656 return (AE_OK); 657 } 658 659 /* Get the length of the new internal name */ 660 661 Info.ExternalName = ExternalName; 662 AcpiNsGetInternalNameLength (&Info); 663 664 /* We need a segment to store the internal name */ 665 666 Info.InternalName = UtGetStringBuffer (Info.Length); 667 if (!Info.InternalName) 668 { 669 return (AE_NO_MEMORY); 670 } 671 672 /* Build the name */ 673 674 Status = AcpiNsBuildInternalName (&Info); 675 if (ACPI_FAILURE (Status)) 676 { 677 return (Status); 678 } 679 680 *ConvertedName = Info.InternalName; 681 return (AE_OK); 682 } 683 684 685 /******************************************************************************* 686 * 687 * FUNCTION: UtPadNameWithUnderscores 688 * 689 * PARAMETERS: NameSeg - Input nameseg 690 * PaddedNameSeg - Output padded nameseg 691 * 692 * RETURN: Padded nameseg. 693 * 694 * DESCRIPTION: Pads a NameSeg with underscores if necessary to form a full 695 * ACPI_NAME. 696 * 697 ******************************************************************************/ 698 699 static void 700 UtPadNameWithUnderscores ( 701 char *NameSeg, 702 char *PaddedNameSeg) 703 { 704 UINT32 i; 705 706 707 for (i = 0; (i < ACPI_NAME_SIZE); i++) 708 { 709 if (*NameSeg) 710 { 711 *PaddedNameSeg = *NameSeg; 712 NameSeg++; 713 } 714 else 715 { 716 *PaddedNameSeg = '_'; 717 } 718 PaddedNameSeg++; 719 } 720 } 721 722 723 /******************************************************************************* 724 * 725 * FUNCTION: UtAttachNameseg 726 * 727 * PARAMETERS: Op - Parent parse node 728 * Name - Full ExternalName 729 * 730 * RETURN: None; Sets the NameSeg field in parent node 731 * 732 * DESCRIPTION: Extract the last nameseg of the ExternalName and store it 733 * in the NameSeg field of the Op. 734 * 735 ******************************************************************************/ 736 737 static void 738 UtAttachNameseg ( 739 ACPI_PARSE_OBJECT *Op, 740 char *Name) 741 { 742 char *NameSeg; 743 char PaddedNameSeg[4]; 744 745 746 if (!Name) 747 { 748 return; 749 } 750 751 /* Look for the last dot in the namepath */ 752 753 NameSeg = strrchr (Name, '.'); 754 if (NameSeg) 755 { 756 /* Found last dot, we have also found the final nameseg */ 757 758 NameSeg++; 759 UtPadNameWithUnderscores (NameSeg, PaddedNameSeg); 760 } 761 else 762 { 763 /* No dots in the namepath, there is only a single nameseg. */ 764 /* Handle prefixes */ 765 766 while ((*Name == '\\') || (*Name == '^')) 767 { 768 Name++; 769 } 770 771 /* Remaing string should be one single nameseg */ 772 773 UtPadNameWithUnderscores (Name, PaddedNameSeg); 774 } 775 776 strncpy (Op->Asl.NameSeg, PaddedNameSeg, 4); 777 } 778 779 780 /******************************************************************************* 781 * 782 * FUNCTION: UtAttachNamepathToOwner 783 * 784 * PARAMETERS: Op - Parent parse node 785 * NameOp - Node that contains the name 786 * 787 * RETURN: Sets the ExternalName and Namepath in the parent node 788 * 789 * DESCRIPTION: Store the name in two forms in the parent node: The original 790 * (external) name, and the internalized name that is used within 791 * the ACPI namespace manager. 792 * 793 ******************************************************************************/ 794 795 void 796 UtAttachNamepathToOwner ( 797 ACPI_PARSE_OBJECT *Op, 798 ACPI_PARSE_OBJECT *NameOp) 799 { 800 ACPI_STATUS Status; 801 802 803 /* Full external path */ 804 805 Op->Asl.ExternalName = NameOp->Asl.Value.String; 806 807 /* Save the NameOp for possible error reporting later */ 808 809 Op->Asl.ParentMethod = (void *) NameOp; 810 811 /* Last nameseg of the path */ 812 813 UtAttachNameseg (Op, Op->Asl.ExternalName); 814 815 /* Create internalized path */ 816 817 Status = UtInternalizeName (NameOp->Asl.Value.String, &Op->Asl.Namepath); 818 if (ACPI_FAILURE (Status)) 819 { 820 /* TBD: abort on no memory */ 821 } 822 } 823 824 825 /******************************************************************************* 826 * 827 * FUNCTION: UtDoConstant 828 * 829 * PARAMETERS: String - Hex, Octal, or Decimal string 830 * 831 * RETURN: Converted Integer 832 * 833 * DESCRIPTION: Convert a string to an integer. With error checking. 834 * 835 ******************************************************************************/ 836 837 ACPI_INTEGER 838 UtDoConstant ( 839 char *String) 840 { 841 ACPI_STATUS Status; 842 ACPI_INTEGER Converted; 843 char ErrBuf[64]; 844 845 846 Status = UtStrtoul64 (String, 0, &Converted); 847 if (ACPI_FAILURE (Status)) 848 { 849 sprintf (ErrBuf, "%s %s\n", "Conversion error:", 850 AcpiFormatException (Status)); 851 AslCompilererror (ErrBuf); 852 } 853 854 return (Converted); 855 } 856 857 858 /* TBD: use version in ACPI CA main code base? */ 859 860 /******************************************************************************* 861 * 862 * FUNCTION: UtStrtoul64 863 * 864 * PARAMETERS: String - Null terminated string 865 * Terminater - Where a pointer to the terminating byte is 866 * returned 867 * Base - Radix of the string 868 * 869 * RETURN: Converted value 870 * 871 * DESCRIPTION: Convert a string into an unsigned value. 872 * 873 ******************************************************************************/ 874 875 static ACPI_STATUS 876 UtStrtoul64 ( 877 char *String, 878 UINT32 Base, 879 ACPI_INTEGER *RetInteger) 880 { 881 UINT32 Index; 882 UINT32 Sign; 883 ACPI_INTEGER ReturnValue = 0; 884 ACPI_STATUS Status = AE_OK; 885 886 887 *RetInteger = 0; 888 889 switch (Base) 890 { 891 case 0: 892 case 8: 893 case 10: 894 case 16: 895 break; 896 897 default: 898 /* 899 * The specified Base parameter is not in the domain of 900 * this function: 901 */ 902 return (AE_BAD_PARAMETER); 903 } 904 905 /* Skip over any white space in the buffer: */ 906 907 while (isspace (*String) || *String == '\t') 908 { 909 ++String; 910 } 911 912 /* 913 * The buffer may contain an optional plus or minus sign. 914 * If it does, then skip over it but remember what is was: 915 */ 916 if (*String == '-') 917 { 918 Sign = NEGATIVE; 919 ++String; 920 } 921 else if (*String == '+') 922 { 923 ++String; 924 Sign = POSITIVE; 925 } 926 else 927 { 928 Sign = POSITIVE; 929 } 930 931 /* 932 * If the input parameter Base is zero, then we need to 933 * determine if it is octal, decimal, or hexadecimal: 934 */ 935 if (Base == 0) 936 { 937 if (*String == '0') 938 { 939 if (tolower (*(++String)) == 'x') 940 { 941 Base = 16; 942 ++String; 943 } 944 else 945 { 946 Base = 8; 947 } 948 } 949 else 950 { 951 Base = 10; 952 } 953 } 954 955 /* 956 * For octal and hexadecimal bases, skip over the leading 957 * 0 or 0x, if they are present. 958 */ 959 if (Base == 8 && *String == '0') 960 { 961 String++; 962 } 963 964 if (Base == 16 && 965 *String == '0' && 966 tolower (*(++String)) == 'x') 967 { 968 String++; 969 } 970 971 /* Main loop: convert the string to an unsigned long */ 972 973 while (*String) 974 { 975 if (isdigit (*String)) 976 { 977 Index = ((UINT8) *String) - '0'; 978 } 979 else 980 { 981 Index = (UINT8) toupper (*String); 982 if (isupper ((char) Index)) 983 { 984 Index = Index - 'A' + 10; 985 } 986 else 987 { 988 goto ErrorExit; 989 } 990 } 991 992 if (Index >= Base) 993 { 994 goto ErrorExit; 995 } 996 997 /* Check to see if value is out of range: */ 998 999 if (ReturnValue > ((ACPI_INTEGER_MAX - (ACPI_INTEGER) Index) / 1000 (ACPI_INTEGER) Base)) 1001 { 1002 goto ErrorExit; 1003 } 1004 else 1005 { 1006 ReturnValue *= Base; 1007 ReturnValue += Index; 1008 } 1009 1010 ++String; 1011 } 1012 1013 1014 /* If a minus sign was present, then "the conversion is negated": */ 1015 1016 if (Sign == NEGATIVE) 1017 { 1018 ReturnValue = (ACPI_UINT32_MAX - ReturnValue) + 1; 1019 } 1020 1021 *RetInteger = ReturnValue; 1022 return (Status); 1023 1024 1025 ErrorExit: 1026 switch (Base) 1027 { 1028 case 8: 1029 Status = AE_BAD_OCTAL_CONSTANT; 1030 break; 1031 1032 case 10: 1033 Status = AE_BAD_DECIMAL_CONSTANT; 1034 break; 1035 1036 case 16: 1037 Status = AE_BAD_HEX_CONSTANT; 1038 break; 1039 1040 default: 1041 /* Base validated above */ 1042 break; 1043 } 1044 1045 return (Status); 1046 } 1047 1048 1049