1 /****************************************************************************** 2 * 3 * Module Name: aslutils -- compiler utilities 4 * 5 *****************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2015, Intel Corp. 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions, and the following disclaimer, 16 * without modification. 17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 18 * substantially similar to the "NO WARRANTY" disclaimer below 19 * ("Disclaimer") and any redistribution must be conditioned upon 20 * including a substantially similar Disclaimer requirement for further 21 * binary redistribution. 22 * 3. Neither the names of the above-listed copyright holders nor the names 23 * of any contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * Alternatively, this software may be distributed under the terms of the 27 * GNU General Public License ("GPL") version 2 as published by the Free 28 * Software Foundation. 29 * 30 * NO WARRANTY 31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 41 * POSSIBILITY OF SUCH DAMAGES. 42 */ 43 44 #include "aslcompiler.h" 45 #include "aslcompiler.y.h" 46 #include "acdisasm.h" 47 #include "acnamesp.h" 48 #include "amlcode.h" 49 #include <acapps.h> 50 51 #define _COMPONENT ACPI_COMPILER 52 ACPI_MODULE_NAME ("aslutils") 53 54 55 /* Local prototypes */ 56 57 static void 58 UtPadNameWithUnderscores ( 59 char *NameSeg, 60 char *PaddedNameSeg); 61 62 static void 63 UtAttachNameseg ( 64 ACPI_PARSE_OBJECT *Op, 65 char *Name); 66 67 68 /******************************************************************************* 69 * 70 * FUNCTION: UtDisplaySupportedTables 71 * 72 * PARAMETERS: None 73 * 74 * RETURN: None 75 * 76 * DESCRIPTION: Print all supported ACPI table names. 77 * 78 ******************************************************************************/ 79 80 void 81 UtDisplaySupportedTables ( 82 void) 83 { 84 const AH_TABLE *TableData; 85 UINT32 i; 86 87 88 printf ("\nACPI tables supported by iASL version %8.8X:\n" 89 " (Compiler, Disassembler, Template Generator)\n\n", 90 ACPI_CA_VERSION); 91 92 /* All ACPI tables with the common table header */ 93 94 printf ("\n Supported ACPI tables:\n"); 95 for (TableData = AcpiSupportedTables, i = 1; 96 TableData->Signature; TableData++, i++) 97 { 98 printf ("%8u) %s %s\n", i, 99 TableData->Signature, TableData->Description); 100 } 101 } 102 103 104 /******************************************************************************* 105 * 106 * FUNCTION: UtDisplayConstantOpcodes 107 * 108 * PARAMETERS: None 109 * 110 * RETURN: None 111 * 112 * DESCRIPTION: Print AML opcodes that can be used in constant expressions. 113 * 114 ******************************************************************************/ 115 116 void 117 UtDisplayConstantOpcodes ( 118 void) 119 { 120 UINT32 i; 121 122 123 printf ("Constant expression opcode information\n\n"); 124 125 for (i = 0; i < sizeof (AcpiGbl_AmlOpInfo) / sizeof (ACPI_OPCODE_INFO); i++) 126 { 127 if (AcpiGbl_AmlOpInfo[i].Flags & AML_CONSTANT) 128 { 129 printf ("%s\n", AcpiGbl_AmlOpInfo[i].Name); 130 } 131 } 132 } 133 134 135 /******************************************************************************* 136 * 137 * FUNCTION: UtLocalCalloc 138 * 139 * PARAMETERS: Size - Bytes to be allocated 140 * 141 * RETURN: Pointer to the allocated memory. Guaranteed to be valid. 142 * 143 * DESCRIPTION: Allocate zero-initialized memory. Aborts the compile on an 144 * allocation failure, on the assumption that nothing more can be 145 * accomplished. 146 * 147 ******************************************************************************/ 148 149 void * 150 UtLocalCalloc ( 151 UINT32 Size) 152 { 153 void *Allocated; 154 155 156 Allocated = ACPI_ALLOCATE_ZEROED (Size); 157 if (!Allocated) 158 { 159 AslCommonError (ASL_ERROR, ASL_MSG_MEMORY_ALLOCATION, 160 Gbl_CurrentLineNumber, Gbl_LogicalLineNumber, 161 Gbl_InputByteCount, Gbl_CurrentColumn, 162 Gbl_Files[ASL_FILE_INPUT].Filename, NULL); 163 164 CmCleanupAndExit (); 165 exit (1); 166 } 167 168 TotalAllocations++; 169 TotalAllocated += Size; 170 return (Allocated); 171 } 172 173 174 /******************************************************************************* 175 * 176 * FUNCTION: UtBeginEvent 177 * 178 * PARAMETERS: Name - Ascii name of this event 179 * 180 * RETURN: Event number (integer index) 181 * 182 * DESCRIPTION: Saves the current time with this event 183 * 184 ******************************************************************************/ 185 186 UINT8 187 UtBeginEvent ( 188 char *Name) 189 { 190 191 if (AslGbl_NextEvent >= ASL_NUM_EVENTS) 192 { 193 AcpiOsPrintf ("Ran out of compiler event structs!\n"); 194 return (AslGbl_NextEvent); 195 } 196 197 /* Init event with current (start) time */ 198 199 AslGbl_Events[AslGbl_NextEvent].StartTime = AcpiOsGetTimer (); 200 AslGbl_Events[AslGbl_NextEvent].EventName = Name; 201 AslGbl_Events[AslGbl_NextEvent].Valid = TRUE; 202 return (AslGbl_NextEvent++); 203 } 204 205 206 /******************************************************************************* 207 * 208 * FUNCTION: UtEndEvent 209 * 210 * PARAMETERS: Event - Event number (integer index) 211 * 212 * RETURN: None 213 * 214 * DESCRIPTION: Saves the current time (end time) with this event 215 * 216 ******************************************************************************/ 217 218 void 219 UtEndEvent ( 220 UINT8 Event) 221 { 222 223 if (Event >= ASL_NUM_EVENTS) 224 { 225 return; 226 } 227 228 /* Insert end time for event */ 229 230 AslGbl_Events[Event].EndTime = AcpiOsGetTimer (); 231 } 232 233 234 /******************************************************************************* 235 * 236 * FUNCTION: UtConvertByteToHex 237 * 238 * PARAMETERS: RawByte - Binary data 239 * Buffer - Pointer to where the hex bytes will be 240 * stored 241 * 242 * RETURN: Ascii hex byte is stored in Buffer. 243 * 244 * DESCRIPTION: Perform hex-to-ascii translation. The return data is prefixed 245 * with "0x" 246 * 247 ******************************************************************************/ 248 249 void 250 UtConvertByteToHex ( 251 UINT8 RawByte, 252 UINT8 *Buffer) 253 { 254 255 Buffer[0] = '0'; 256 Buffer[1] = 'x'; 257 258 Buffer[2] = (UINT8) AcpiUtHexToAsciiChar (RawByte, 4); 259 Buffer[3] = (UINT8) AcpiUtHexToAsciiChar (RawByte, 0); 260 } 261 262 263 /******************************************************************************* 264 * 265 * FUNCTION: UtConvertByteToAsmHex 266 * 267 * PARAMETERS: RawByte - Binary data 268 * Buffer - Pointer to where the hex bytes will be 269 * stored 270 * 271 * RETURN: Ascii hex byte is stored in Buffer. 272 * 273 * DESCRIPTION: Perform hex-to-ascii translation. The return data is prefixed 274 * with '0', and a trailing 'h' is added. 275 * 276 ******************************************************************************/ 277 278 void 279 UtConvertByteToAsmHex ( 280 UINT8 RawByte, 281 UINT8 *Buffer) 282 { 283 284 Buffer[0] = '0'; 285 Buffer[1] = (UINT8) AcpiUtHexToAsciiChar (RawByte, 4); 286 Buffer[2] = (UINT8) AcpiUtHexToAsciiChar (RawByte, 0); 287 Buffer[3] = 'h'; 288 } 289 290 291 /******************************************************************************* 292 * 293 * FUNCTION: DbgPrint 294 * 295 * PARAMETERS: Type - Type of output 296 * Fmt - Printf format string 297 * ... - variable printf list 298 * 299 * RETURN: None 300 * 301 * DESCRIPTION: Conditional print statement. Prints to stderr only if the 302 * debug flag is set. 303 * 304 ******************************************************************************/ 305 306 void 307 DbgPrint ( 308 UINT32 Type, 309 char *Fmt, 310 ...) 311 { 312 va_list Args; 313 314 315 if (!Gbl_DebugFlag) 316 { 317 return; 318 } 319 320 if ((Type == ASL_PARSE_OUTPUT) && 321 (!(AslCompilerdebug))) 322 { 323 return; 324 } 325 326 va_start (Args, Fmt); 327 (void) vfprintf (stderr, Fmt, Args); 328 va_end (Args); 329 return; 330 } 331 332 333 /******************************************************************************* 334 * 335 * FUNCTION: UtPrintFormattedName 336 * 337 * PARAMETERS: ParseOpcode - Parser keyword ID 338 * Level - Indentation level 339 * 340 * RETURN: None 341 * 342 * DESCRIPTION: Print the ascii name of the parse opcode. 343 * 344 ******************************************************************************/ 345 346 #define TEXT_OFFSET 10 347 348 void 349 UtPrintFormattedName ( 350 UINT16 ParseOpcode, 351 UINT32 Level) 352 { 353 354 if (Level) 355 { 356 DbgPrint (ASL_TREE_OUTPUT, 357 "%*s", (3 * Level), " "); 358 } 359 DbgPrint (ASL_TREE_OUTPUT, 360 " %-20.20s", UtGetOpName (ParseOpcode)); 361 362 if (Level < TEXT_OFFSET) 363 { 364 DbgPrint (ASL_TREE_OUTPUT, 365 "%*s", (TEXT_OFFSET - Level) * 3, " "); 366 } 367 } 368 369 370 /******************************************************************************* 371 * 372 * FUNCTION: UtSetParseOpName 373 * 374 * PARAMETERS: Op - Parse op to be named. 375 * 376 * RETURN: None 377 * 378 * DESCRIPTION: Insert the ascii name of the parse opcode 379 * 380 ******************************************************************************/ 381 382 void 383 UtSetParseOpName ( 384 ACPI_PARSE_OBJECT *Op) 385 { 386 387 strncpy (Op->Asl.ParseOpName, UtGetOpName (Op->Asl.ParseOpcode), 388 ACPI_MAX_PARSEOP_NAME); 389 } 390 391 392 /******************************************************************************* 393 * 394 * FUNCTION: UtDisplaySummary 395 * 396 * PARAMETERS: FileID - ID of outpout file 397 * 398 * RETURN: None 399 * 400 * DESCRIPTION: Display compilation statistics 401 * 402 ******************************************************************************/ 403 404 void 405 UtDisplaySummary ( 406 UINT32 FileId) 407 { 408 UINT32 i; 409 410 411 if (FileId != ASL_FILE_STDOUT) 412 { 413 /* Compiler name and version number */ 414 415 FlPrintFile (FileId, "%s version %X%s [%s]\n\n", 416 ASL_COMPILER_NAME, (UINT32) ACPI_CA_VERSION, ACPI_WIDTH, __DATE__); 417 } 418 419 /* Summary of main input and output files */ 420 421 if (Gbl_FileType == ASL_INPUT_TYPE_ASCII_DATA) 422 { 423 FlPrintFile (FileId, 424 "%-14s %s - %u lines, %u bytes, %u fields\n", 425 "Table Input:", 426 Gbl_Files[ASL_FILE_INPUT].Filename, Gbl_CurrentLineNumber, 427 Gbl_InputByteCount, Gbl_InputFieldCount); 428 429 if ((Gbl_ExceptionCount[ASL_ERROR] == 0) || (Gbl_IgnoreErrors)) 430 { 431 FlPrintFile (FileId, 432 "%-14s %s - %u bytes\n", 433 "Binary Output:", 434 Gbl_Files[ASL_FILE_AML_OUTPUT].Filename, Gbl_TableLength); 435 } 436 } 437 else 438 { 439 FlPrintFile (FileId, 440 "%-14s %s - %u lines, %u bytes, %u keywords\n", 441 "ASL Input:", 442 Gbl_Files[ASL_FILE_INPUT].Filename, Gbl_CurrentLineNumber, 443 Gbl_OriginalInputFileSize, TotalKeywords); 444 445 /* AML summary */ 446 447 if ((Gbl_ExceptionCount[ASL_ERROR] == 0) || (Gbl_IgnoreErrors)) 448 { 449 if (Gbl_Files[ASL_FILE_AML_OUTPUT].Handle) 450 { 451 FlPrintFile (FileId, 452 "%-14s %s - %u bytes, %u named objects, %u executable opcodes\n", 453 "AML Output:", 454 Gbl_Files[ASL_FILE_AML_OUTPUT].Filename, Gbl_TableLength, 455 TotalNamedObjects, TotalExecutableOpcodes); 456 } 457 } 458 } 459 460 /* Display summary of any optional files */ 461 462 for (i = ASL_FILE_SOURCE_OUTPUT; i <= ASL_MAX_FILE_TYPE; i++) 463 { 464 if (!Gbl_Files[i].Filename || !Gbl_Files[i].Handle) 465 { 466 continue; 467 } 468 469 /* .SRC is a temp file unless specifically requested */ 470 471 if ((i == ASL_FILE_SOURCE_OUTPUT) && (!Gbl_SourceOutputFlag)) 472 { 473 continue; 474 } 475 476 /* .PRE is the preprocessor intermediate file */ 477 478 if ((i == ASL_FILE_PREPROCESSOR) && (!Gbl_KeepPreprocessorTempFile)) 479 { 480 continue; 481 } 482 483 FlPrintFile (FileId, "%14s %s - %u bytes\n", 484 Gbl_Files[i].ShortDescription, 485 Gbl_Files[i].Filename, FlGetFileSize (i)); 486 } 487 488 /* Error summary */ 489 490 FlPrintFile (FileId, 491 "\nCompilation complete. %u Errors, %u Warnings, %u Remarks", 492 Gbl_ExceptionCount[ASL_ERROR], 493 Gbl_ExceptionCount[ASL_WARNING] + 494 Gbl_ExceptionCount[ASL_WARNING2] + 495 Gbl_ExceptionCount[ASL_WARNING3], 496 Gbl_ExceptionCount[ASL_REMARK]); 497 498 if (Gbl_FileType != ASL_INPUT_TYPE_ASCII_DATA) 499 { 500 FlPrintFile (FileId, ", %u Optimizations", 501 Gbl_ExceptionCount[ASL_OPTIMIZATION]); 502 503 if (TotalFolds) 504 { 505 FlPrintFile (FileId, ", %u Constants Folded", TotalFolds); 506 } 507 } 508 509 FlPrintFile (FileId, "\n"); 510 } 511 512 513 /******************************************************************************* 514 * 515 * FUNCTION: UtCheckIntegerRange 516 * 517 * PARAMETERS: Op - Integer parse node 518 * LowValue - Smallest allowed value 519 * HighValue - Largest allowed value 520 * 521 * RETURN: Op if OK, otherwise NULL 522 * 523 * DESCRIPTION: Check integer for an allowable range 524 * 525 ******************************************************************************/ 526 527 ACPI_PARSE_OBJECT * 528 UtCheckIntegerRange ( 529 ACPI_PARSE_OBJECT *Op, 530 UINT32 LowValue, 531 UINT32 HighValue) 532 { 533 534 if (!Op) 535 { 536 return (NULL); 537 } 538 539 if ((Op->Asl.Value.Integer < LowValue) || 540 (Op->Asl.Value.Integer > HighValue)) 541 { 542 sprintf (MsgBuffer, "0x%X, allowable: 0x%X-0x%X", 543 (UINT32) Op->Asl.Value.Integer, LowValue, HighValue); 544 545 AslError (ASL_ERROR, ASL_MSG_RANGE, Op, MsgBuffer); 546 return (NULL); 547 } 548 549 return (Op); 550 } 551 552 553 /******************************************************************************* 554 * 555 * FUNCTION: UtStringCacheCalloc 556 * 557 * PARAMETERS: Length - Size of buffer requested 558 * 559 * RETURN: Pointer to the buffer. Aborts on allocation failure 560 * 561 * DESCRIPTION: Allocate a string buffer. Bypass the local 562 * dynamic memory manager for performance reasons (This has a 563 * major impact on the speed of the compiler.) 564 * 565 ******************************************************************************/ 566 567 char * 568 UtStringCacheCalloc ( 569 UINT32 Length) 570 { 571 char *Buffer; 572 ASL_CACHE_INFO *Cache; 573 UINT32 CacheSize = ASL_STRING_CACHE_SIZE; 574 575 576 if (Length > CacheSize) 577 { 578 CacheSize = Length; 579 580 if (Gbl_StringCacheList) 581 { 582 Cache = UtLocalCalloc (sizeof (Cache->Next) + CacheSize); 583 584 /* Link new cache buffer just following head of list */ 585 586 Cache->Next = Gbl_StringCacheList->Next; 587 Gbl_StringCacheList->Next = Cache; 588 589 /* Leave cache management pointers alone as they pertain to head */ 590 591 Gbl_StringCount++; 592 Gbl_StringSize += Length; 593 594 return (Cache->Buffer); 595 } 596 } 597 598 if ((Gbl_StringCacheNext + Length) >= Gbl_StringCacheLast) 599 { 600 /* Allocate a new buffer */ 601 602 Cache = UtLocalCalloc (sizeof (Cache->Next) + CacheSize); 603 604 /* Link new cache buffer to head of list */ 605 606 Cache->Next = Gbl_StringCacheList; 607 Gbl_StringCacheList = Cache; 608 609 /* Setup cache management pointers */ 610 611 Gbl_StringCacheNext = Cache->Buffer; 612 Gbl_StringCacheLast = Gbl_StringCacheNext + CacheSize; 613 } 614 615 Gbl_StringCount++; 616 Gbl_StringSize += Length; 617 618 Buffer = Gbl_StringCacheNext; 619 Gbl_StringCacheNext += Length; 620 return (Buffer); 621 } 622 623 624 /****************************************************************************** 625 * 626 * FUNCTION: UtExpandLineBuffers 627 * 628 * PARAMETERS: None. Updates global line buffer pointers. 629 * 630 * RETURN: None. Reallocates the global line buffers 631 * 632 * DESCRIPTION: Called if the current line buffer becomes filled. Reallocates 633 * all global line buffers and updates Gbl_LineBufferSize. NOTE: 634 * Also used for the initial allocation of the buffers, when 635 * all of the buffer pointers are NULL. Initial allocations are 636 * of size ASL_DEFAULT_LINE_BUFFER_SIZE 637 * 638 *****************************************************************************/ 639 640 void 641 UtExpandLineBuffers ( 642 void) 643 { 644 UINT32 NewSize; 645 646 647 /* Attempt to double the size of all line buffers */ 648 649 NewSize = Gbl_LineBufferSize * 2; 650 if (Gbl_CurrentLineBuffer) 651 { 652 DbgPrint (ASL_DEBUG_OUTPUT, 653 "Increasing line buffer size from %u to %u\n", 654 Gbl_LineBufferSize, NewSize); 655 } 656 657 Gbl_CurrentLineBuffer = realloc (Gbl_CurrentLineBuffer, NewSize); 658 Gbl_LineBufPtr = Gbl_CurrentLineBuffer; 659 if (!Gbl_CurrentLineBuffer) 660 { 661 goto ErrorExit; 662 } 663 664 Gbl_MainTokenBuffer = realloc (Gbl_MainTokenBuffer, NewSize); 665 if (!Gbl_MainTokenBuffer) 666 { 667 goto ErrorExit; 668 } 669 670 Gbl_MacroTokenBuffer = realloc (Gbl_MacroTokenBuffer, NewSize); 671 if (!Gbl_MacroTokenBuffer) 672 { 673 goto ErrorExit; 674 } 675 676 Gbl_ExpressionTokenBuffer = realloc (Gbl_ExpressionTokenBuffer, NewSize); 677 if (!Gbl_ExpressionTokenBuffer) 678 { 679 goto ErrorExit; 680 } 681 682 Gbl_LineBufferSize = NewSize; 683 return; 684 685 686 /* On error above, simply issue error messages and abort, cannot continue */ 687 688 ErrorExit: 689 printf ("Could not increase line buffer size from %u to %u\n", 690 Gbl_LineBufferSize, Gbl_LineBufferSize * 2); 691 692 AslError (ASL_ERROR, ASL_MSG_BUFFER_ALLOCATION, 693 NULL, NULL); 694 AslAbort (); 695 } 696 697 698 /****************************************************************************** 699 * 700 * FUNCTION: UtFreeLineBuffers 701 * 702 * PARAMETERS: None 703 * 704 * RETURN: None 705 * 706 * DESCRIPTION: Free all line buffers 707 * 708 *****************************************************************************/ 709 710 void 711 UtFreeLineBuffers ( 712 void) 713 { 714 715 free (Gbl_CurrentLineBuffer); 716 free (Gbl_MainTokenBuffer); 717 free (Gbl_MacroTokenBuffer); 718 free (Gbl_ExpressionTokenBuffer); 719 } 720 721 722 /******************************************************************************* 723 * 724 * FUNCTION: UtInternalizeName 725 * 726 * PARAMETERS: ExternalName - Name to convert 727 * ConvertedName - Where the converted name is returned 728 * 729 * RETURN: Status 730 * 731 * DESCRIPTION: Convert an external (ASL) name to an internal (AML) name 732 * 733 ******************************************************************************/ 734 735 ACPI_STATUS 736 UtInternalizeName ( 737 char *ExternalName, 738 char **ConvertedName) 739 { 740 ACPI_NAMESTRING_INFO Info; 741 ACPI_STATUS Status; 742 743 744 if (!ExternalName) 745 { 746 return (AE_OK); 747 } 748 749 /* Get the length of the new internal name */ 750 751 Info.ExternalName = ExternalName; 752 AcpiNsGetInternalNameLength (&Info); 753 754 /* We need a segment to store the internal name */ 755 756 Info.InternalName = UtStringCacheCalloc (Info.Length); 757 if (!Info.InternalName) 758 { 759 return (AE_NO_MEMORY); 760 } 761 762 /* Build the name */ 763 764 Status = AcpiNsBuildInternalName (&Info); 765 if (ACPI_FAILURE (Status)) 766 { 767 return (Status); 768 } 769 770 *ConvertedName = Info.InternalName; 771 return (AE_OK); 772 } 773 774 775 /******************************************************************************* 776 * 777 * FUNCTION: UtPadNameWithUnderscores 778 * 779 * PARAMETERS: NameSeg - Input nameseg 780 * PaddedNameSeg - Output padded nameseg 781 * 782 * RETURN: Padded nameseg. 783 * 784 * DESCRIPTION: Pads a NameSeg with underscores if necessary to form a full 785 * ACPI_NAME. 786 * 787 ******************************************************************************/ 788 789 static void 790 UtPadNameWithUnderscores ( 791 char *NameSeg, 792 char *PaddedNameSeg) 793 { 794 UINT32 i; 795 796 797 for (i = 0; (i < ACPI_NAME_SIZE); i++) 798 { 799 if (*NameSeg) 800 { 801 *PaddedNameSeg = *NameSeg; 802 NameSeg++; 803 } 804 else 805 { 806 *PaddedNameSeg = '_'; 807 } 808 809 PaddedNameSeg++; 810 } 811 } 812 813 814 /******************************************************************************* 815 * 816 * FUNCTION: UtAttachNameseg 817 * 818 * PARAMETERS: Op - Parent parse node 819 * Name - Full ExternalName 820 * 821 * RETURN: None; Sets the NameSeg field in parent node 822 * 823 * DESCRIPTION: Extract the last nameseg of the ExternalName and store it 824 * in the NameSeg field of the Op. 825 * 826 ******************************************************************************/ 827 828 static void 829 UtAttachNameseg ( 830 ACPI_PARSE_OBJECT *Op, 831 char *Name) 832 { 833 char *NameSeg; 834 char PaddedNameSeg[4]; 835 836 837 if (!Name) 838 { 839 return; 840 } 841 842 /* Look for the last dot in the namepath */ 843 844 NameSeg = strrchr (Name, '.'); 845 if (NameSeg) 846 { 847 /* Found last dot, we have also found the final nameseg */ 848 849 NameSeg++; 850 UtPadNameWithUnderscores (NameSeg, PaddedNameSeg); 851 } 852 else 853 { 854 /* No dots in the namepath, there is only a single nameseg. */ 855 /* Handle prefixes */ 856 857 while (ACPI_IS_ROOT_PREFIX (*Name) || 858 ACPI_IS_PARENT_PREFIX (*Name)) 859 { 860 Name++; 861 } 862 863 /* Remaining string should be one single nameseg */ 864 865 UtPadNameWithUnderscores (Name, PaddedNameSeg); 866 } 867 868 ACPI_MOVE_NAME (Op->Asl.NameSeg, PaddedNameSeg); 869 } 870 871 872 /******************************************************************************* 873 * 874 * FUNCTION: UtAttachNamepathToOwner 875 * 876 * PARAMETERS: Op - Parent parse node 877 * NameOp - Node that contains the name 878 * 879 * RETURN: Sets the ExternalName and Namepath in the parent node 880 * 881 * DESCRIPTION: Store the name in two forms in the parent node: The original 882 * (external) name, and the internalized name that is used within 883 * the ACPI namespace manager. 884 * 885 ******************************************************************************/ 886 887 void 888 UtAttachNamepathToOwner ( 889 ACPI_PARSE_OBJECT *Op, 890 ACPI_PARSE_OBJECT *NameOp) 891 { 892 ACPI_STATUS Status; 893 894 895 /* Full external path */ 896 897 Op->Asl.ExternalName = NameOp->Asl.Value.String; 898 899 /* Save the NameOp for possible error reporting later */ 900 901 Op->Asl.ParentMethod = (void *) NameOp; 902 903 /* Last nameseg of the path */ 904 905 UtAttachNameseg (Op, Op->Asl.ExternalName); 906 907 /* Create internalized path */ 908 909 Status = UtInternalizeName (NameOp->Asl.Value.String, &Op->Asl.Namepath); 910 if (ACPI_FAILURE (Status)) 911 { 912 /* TBD: abort on no memory */ 913 } 914 } 915 916 917 /******************************************************************************* 918 * 919 * FUNCTION: UtDoConstant 920 * 921 * PARAMETERS: String - Hex, Octal, or Decimal string 922 * 923 * RETURN: Converted Integer 924 * 925 * DESCRIPTION: Convert a string to an integer, with error checking. 926 * 927 ******************************************************************************/ 928 929 UINT64 930 UtDoConstant ( 931 char *String) 932 { 933 ACPI_STATUS Status; 934 UINT64 Converted; 935 char ErrBuf[64]; 936 937 938 Status = stroul64 (String, 0, &Converted); 939 if (ACPI_FAILURE (Status)) 940 { 941 sprintf (ErrBuf, "%s %s\n", "Conversion error:", 942 AcpiFormatException (Status)); 943 AslCompilererror (ErrBuf); 944 } 945 946 return (Converted); 947 } 948 949 950 /* TBD: use version in ACPICA main code base? */ 951 952 /******************************************************************************* 953 * 954 * FUNCTION: stroul64 955 * 956 * PARAMETERS: String - Null terminated string 957 * Terminater - Where a pointer to the terminating byte 958 * is returned 959 * Base - Radix of the string 960 * 961 * RETURN: Converted value 962 * 963 * DESCRIPTION: Convert a string into an unsigned value. 964 * 965 ******************************************************************************/ 966 967 ACPI_STATUS 968 stroul64 ( 969 char *String, 970 UINT32 Base, 971 UINT64 *RetInteger) 972 { 973 UINT32 Index; 974 UINT32 Sign; 975 UINT64 ReturnValue = 0; 976 ACPI_STATUS Status = AE_OK; 977 978 979 *RetInteger = 0; 980 981 switch (Base) 982 { 983 case 0: 984 case 8: 985 case 10: 986 case 16: 987 988 break; 989 990 default: 991 /* 992 * The specified Base parameter is not in the domain of 993 * this function: 994 */ 995 return (AE_BAD_PARAMETER); 996 } 997 998 /* Skip over any white space in the buffer: */ 999 1000 while (isspace ((int) *String) || *String == '\t') 1001 { 1002 ++String; 1003 } 1004 1005 /* 1006 * The buffer may contain an optional plus or minus sign. 1007 * If it does, then skip over it but remember what is was: 1008 */ 1009 if (*String == '-') 1010 { 1011 Sign = ACPI_SIGN_NEGATIVE; 1012 ++String; 1013 } 1014 else if (*String == '+') 1015 { 1016 ++String; 1017 Sign = ACPI_SIGN_POSITIVE; 1018 } 1019 else 1020 { 1021 Sign = ACPI_SIGN_POSITIVE; 1022 } 1023 1024 /* 1025 * If the input parameter Base is zero, then we need to 1026 * determine if it is octal, decimal, or hexadecimal: 1027 */ 1028 if (Base == 0) 1029 { 1030 if (*String == '0') 1031 { 1032 if (tolower ((int) *(++String)) == 'x') 1033 { 1034 Base = 16; 1035 ++String; 1036 } 1037 else 1038 { 1039 Base = 8; 1040 } 1041 } 1042 else 1043 { 1044 Base = 10; 1045 } 1046 } 1047 1048 /* 1049 * For octal and hexadecimal bases, skip over the leading 1050 * 0 or 0x, if they are present. 1051 */ 1052 if (Base == 8 && *String == '0') 1053 { 1054 String++; 1055 } 1056 1057 if (Base == 16 && 1058 *String == '0' && 1059 tolower ((int) *(++String)) == 'x') 1060 { 1061 String++; 1062 } 1063 1064 /* Main loop: convert the string to an unsigned long */ 1065 1066 while (*String) 1067 { 1068 if (isdigit ((int) *String)) 1069 { 1070 Index = ((UINT8) *String) - '0'; 1071 } 1072 else 1073 { 1074 Index = (UINT8) toupper ((int) *String); 1075 if (isupper ((int) Index)) 1076 { 1077 Index = Index - 'A' + 10; 1078 } 1079 else 1080 { 1081 goto ErrorExit; 1082 } 1083 } 1084 1085 if (Index >= Base) 1086 { 1087 goto ErrorExit; 1088 } 1089 1090 /* Check to see if value is out of range: */ 1091 1092 if (ReturnValue > ((ACPI_UINT64_MAX - (UINT64) Index) / 1093 (UINT64) Base)) 1094 { 1095 goto ErrorExit; 1096 } 1097 else 1098 { 1099 ReturnValue *= Base; 1100 ReturnValue += Index; 1101 } 1102 1103 ++String; 1104 } 1105 1106 1107 /* If a minus sign was present, then "the conversion is negated": */ 1108 1109 if (Sign == ACPI_SIGN_NEGATIVE) 1110 { 1111 ReturnValue = (ACPI_UINT32_MAX - ReturnValue) + 1; 1112 } 1113 1114 *RetInteger = ReturnValue; 1115 return (Status); 1116 1117 1118 ErrorExit: 1119 switch (Base) 1120 { 1121 case 8: 1122 1123 Status = AE_BAD_OCTAL_CONSTANT; 1124 break; 1125 1126 case 10: 1127 1128 Status = AE_BAD_DECIMAL_CONSTANT; 1129 break; 1130 1131 case 16: 1132 1133 Status = AE_BAD_HEX_CONSTANT; 1134 break; 1135 1136 default: 1137 1138 /* Base validated above */ 1139 1140 break; 1141 } 1142 1143 return (Status); 1144 } 1145