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 <contrib/dev/acpica/compiler/aslcompiler.h> 45#include "aslcompiler.y.h" 46#include <contrib/dev/acpica/include/acdisasm.h> 47#include <contrib/dev/acpica/include/acnamesp.h> 48#include <contrib/dev/acpica/include/amlcode.h> 49#include <contrib/dev/acpica/include/acapps.h> 50 51#define _COMPONENT ACPI_COMPILER 52 ACPI_MODULE_NAME ("aslutils") 53 54 55/* Local prototypes */ 56 57static void 58UtPadNameWithUnderscores ( 59 char *NameSeg, 60 char *PaddedNameSeg); 61 62static void 63UtAttachNameseg ( 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 80void 81UtDisplaySupportedTables ( 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 116void 117UtDisplayConstantOpcodes ( 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 149void * 150UtLocalCalloc ( 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 186UINT8 187UtBeginEvent ( 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; 202 203 return (AslGbl_NextEvent++); 204} 205 206 207/******************************************************************************* 208 * 209 * FUNCTION: UtEndEvent 210 * 211 * PARAMETERS: Event - Event number (integer index) 212 * 213 * RETURN: None 214 * 215 * DESCRIPTION: Saves the current time (end time) with this event 216 * 217 ******************************************************************************/ 218 219void 220UtEndEvent ( 221 UINT8 Event) 222{ 223 224 if (Event >= ASL_NUM_EVENTS) 225 { 226 return; 227 } 228 229 /* Insert end time for event */ 230 231 AslGbl_Events[Event].EndTime = AcpiOsGetTimer (); 232} 233 234 235/******************************************************************************* 236 * 237 * FUNCTION: UtConvertByteToHex 238 * 239 * PARAMETERS: RawByte - Binary data 240 * Buffer - Pointer to where the hex bytes will be 241 * stored 242 * 243 * RETURN: Ascii hex byte is stored in Buffer. 244 * 245 * DESCRIPTION: Perform hex-to-ascii translation. The return data is prefixed 246 * with "0x" 247 * 248 ******************************************************************************/ 249 250void 251UtConvertByteToHex ( 252 UINT8 RawByte, 253 UINT8 *Buffer) 254{ 255 256 Buffer[0] = '0'; 257 Buffer[1] = 'x'; 258 259 Buffer[2] = (UINT8) AcpiUtHexToAsciiChar (RawByte, 4); 260 Buffer[3] = (UINT8) AcpiUtHexToAsciiChar (RawByte, 0); 261} 262 263 264/******************************************************************************* 265 * 266 * FUNCTION: UtConvertByteToAsmHex 267 * 268 * PARAMETERS: RawByte - Binary data 269 * Buffer - Pointer to where the hex bytes will be 270 * stored 271 * 272 * RETURN: Ascii hex byte is stored in Buffer. 273 * 274 * DESCRIPTION: Perform hex-to-ascii translation. The return data is prefixed 275 * with '0', and a trailing 'h' is added. 276 * 277 ******************************************************************************/ 278 279void 280UtConvertByteToAsmHex ( 281 UINT8 RawByte, 282 UINT8 *Buffer) 283{ 284 285 Buffer[0] = '0'; 286 Buffer[1] = (UINT8) AcpiUtHexToAsciiChar (RawByte, 4); 287 Buffer[2] = (UINT8) AcpiUtHexToAsciiChar (RawByte, 0); 288 Buffer[3] = 'h'; 289} 290 291 292/******************************************************************************* 293 * 294 * FUNCTION: DbgPrint 295 * 296 * PARAMETERS: Type - Type of output 297 * Fmt - Printf format string 298 * ... - variable printf list 299 * 300 * RETURN: None 301 * 302 * DESCRIPTION: Conditional print statement. Prints to stderr only if the 303 * debug flag is set. 304 * 305 ******************************************************************************/ 306 307void 308DbgPrint ( 309 UINT32 Type, 310 char *Fmt, 311 ...) 312{ 313 va_list Args; 314 315 316 if (!Gbl_DebugFlag) 317 { 318 return; 319 } 320 321 if ((Type == ASL_PARSE_OUTPUT) && 322 (!(AslCompilerdebug))) 323 { 324 return; 325 } 326 327 va_start (Args, Fmt); 328 (void) vfprintf (stderr, Fmt, Args); 329 va_end (Args); 330 return; 331} 332 333 334/******************************************************************************* 335 * 336 * FUNCTION: UtPrintFormattedName 337 * 338 * PARAMETERS: ParseOpcode - Parser keyword ID 339 * Level - Indentation level 340 * 341 * RETURN: None 342 * 343 * DESCRIPTION: Print the ascii name of the parse opcode. 344 * 345 ******************************************************************************/ 346 347#define TEXT_OFFSET 10 348 349void 350UtPrintFormattedName ( 351 UINT16 ParseOpcode, 352 UINT32 Level) 353{ 354 355 if (Level) 356 { 357 DbgPrint (ASL_TREE_OUTPUT, 358 "%*s", (3 * Level), " "); 359 } 360 DbgPrint (ASL_TREE_OUTPUT, 361 " %-20.20s", UtGetOpName (ParseOpcode)); 362 363 if (Level < TEXT_OFFSET) 364 { 365 DbgPrint (ASL_TREE_OUTPUT, 366 "%*s", (TEXT_OFFSET - Level) * 3, " "); 367 } 368} 369 370 371/******************************************************************************* 372 * 373 * FUNCTION: UtSetParseOpName 374 * 375 * PARAMETERS: Op - Parse op to be named. 376 * 377 * RETURN: None 378 * 379 * DESCRIPTION: Insert the ascii name of the parse opcode 380 * 381 ******************************************************************************/ 382 383void 384UtSetParseOpName ( 385 ACPI_PARSE_OBJECT *Op) 386{ 387 388 strncpy (Op->Asl.ParseOpName, UtGetOpName (Op->Asl.ParseOpcode), 389 ACPI_MAX_PARSEOP_NAME); 390} 391 392 393/******************************************************************************* 394 * 395 * FUNCTION: UtDisplaySummary 396 * 397 * PARAMETERS: FileID - ID of outpout file 398 * 399 * RETURN: None 400 * 401 * DESCRIPTION: Display compilation statistics 402 * 403 ******************************************************************************/ 404 405void 406UtDisplaySummary ( 407 UINT32 FileId) 408{ 409 UINT32 i; 410 411 412 if (FileId != ASL_FILE_STDOUT) 413 { 414 /* Compiler name and version number */ 415 416 FlPrintFile (FileId, "%s version %X%s\n\n", 417 ASL_COMPILER_NAME, (UINT32) ACPI_CA_VERSION, ACPI_WIDTH); 418 } 419 420 /* Summary of main input and output files */ 421 422 if (Gbl_FileType == ASL_INPUT_TYPE_ASCII_DATA) 423 { 424 FlPrintFile (FileId, 425 "%-14s %s - %u lines, %u bytes, %u fields\n", 426 "Table Input:", 427 Gbl_Files[ASL_FILE_INPUT].Filename, Gbl_CurrentLineNumber, 428 Gbl_InputByteCount, Gbl_InputFieldCount); 429 430 if ((Gbl_ExceptionCount[ASL_ERROR] == 0) || (Gbl_IgnoreErrors)) 431 { 432 FlPrintFile (FileId, 433 "%-14s %s - %u bytes\n", 434 "Binary Output:", 435 Gbl_Files[ASL_FILE_AML_OUTPUT].Filename, Gbl_TableLength); 436 } 437 } 438 else 439 { 440 FlPrintFile (FileId, 441 "%-14s %s - %u lines, %u bytes, %u keywords\n", 442 "ASL Input:", 443 Gbl_Files[ASL_FILE_INPUT].Filename, Gbl_CurrentLineNumber, 444 Gbl_InputByteCount, TotalKeywords); 445 446 /* AML summary */ 447 448 if ((Gbl_ExceptionCount[ASL_ERROR] == 0) || (Gbl_IgnoreErrors)) 449 { 450 FlPrintFile (FileId, 451 "%-14s %s - %u bytes, %u named objects, %u executable opcodes\n", 452 "AML Output:", 453 Gbl_Files[ASL_FILE_AML_OUTPUT].Filename, Gbl_TableLength, 454 TotalNamedObjects, TotalExecutableOpcodes); 455 } 456 } 457 458 /* Display summary of any optional files */ 459 460 for (i = ASL_FILE_SOURCE_OUTPUT; i <= ASL_MAX_FILE_TYPE; i++) 461 { 462 if (!Gbl_Files[i].Filename || !Gbl_Files[i].Handle) 463 { 464 continue; 465 } 466 467 /* .SRC is a temp file unless specifically requested */ 468 469 if ((i == ASL_FILE_SOURCE_OUTPUT) && (!Gbl_SourceOutputFlag)) 470 { 471 continue; 472 } 473 474 /* .I is a temp file unless specifically requested */ 475 476 if ((i == ASL_FILE_PREPROCESSOR) && (!Gbl_PreprocessorOutputFlag)) 477 { 478 continue; 479 } 480 481 FlPrintFile (FileId, "%14s %s - %u bytes\n", 482 Gbl_Files[i].ShortDescription, 483 Gbl_Files[i].Filename, FlGetFileSize (i)); 484 } 485 486 /* Error summary */ 487 488 FlPrintFile (FileId, 489 "\nCompilation complete. %u Errors, %u Warnings, %u Remarks", 490 Gbl_ExceptionCount[ASL_ERROR], 491 Gbl_ExceptionCount[ASL_WARNING] + 492 Gbl_ExceptionCount[ASL_WARNING2] + 493 Gbl_ExceptionCount[ASL_WARNING3], 494 Gbl_ExceptionCount[ASL_REMARK]); 495 496 if (Gbl_FileType != ASL_INPUT_TYPE_ASCII_DATA) 497 { 498 FlPrintFile (FileId, ", %u Optimizations", 499 Gbl_ExceptionCount[ASL_OPTIMIZATION]); 500 501 if (TotalFolds) 502 { 503 FlPrintFile (FileId, ", %u Constants Folded", TotalFolds); 504 } 505 } 506 507 FlPrintFile (FileId, "\n"); 508} 509 510 511/******************************************************************************* 512 * 513 * FUNCTION: UtCheckIntegerRange 514 * 515 * PARAMETERS: Op - Integer parse node 516 * LowValue - Smallest allowed value 517 * HighValue - Largest allowed value 518 * 519 * RETURN: Op if OK, otherwise NULL 520 * 521 * DESCRIPTION: Check integer for an allowable range 522 * 523 ******************************************************************************/ 524 525ACPI_PARSE_OBJECT * 526UtCheckIntegerRange ( 527 ACPI_PARSE_OBJECT *Op, 528 UINT32 LowValue, 529 UINT32 HighValue) 530{ 531 532 if (!Op) 533 { 534 return (NULL); 535 } 536 537 if ((Op->Asl.Value.Integer < LowValue) || 538 (Op->Asl.Value.Integer > HighValue)) 539 { 540 sprintf (MsgBuffer, "0x%X, allowable: 0x%X-0x%X", 541 (UINT32) Op->Asl.Value.Integer, LowValue, HighValue); 542 543 AslError (ASL_ERROR, ASL_MSG_RANGE, Op, MsgBuffer); 544 return (NULL); 545 } 546 547 return (Op); 548} 549 550 551/******************************************************************************* 552 * 553 * FUNCTION: UtStringCacheCalloc 554 * 555 * PARAMETERS: Length - Size of buffer requested 556 * 557 * RETURN: Pointer to the buffer. Aborts on allocation failure 558 * 559 * DESCRIPTION: Allocate a string buffer. Bypass the local 560 * dynamic memory manager for performance reasons (This has a 561 * major impact on the speed of the compiler.) 562 * 563 ******************************************************************************/ 564 565char * 566UtStringCacheCalloc ( 567 UINT32 Length) 568{ 569 char *Buffer; 570 ASL_CACHE_INFO *Cache; 571 UINT32 CacheSize = ASL_STRING_CACHE_SIZE; 572 573 574 if (Length > CacheSize) 575 { 576 CacheSize = Length; 577 578 if (Gbl_StringCacheList) 579 { 580 Cache = UtLocalCalloc (sizeof (Cache->Next) + CacheSize); 581 582 /* Link new cache buffer just following head of list */ 583 584 Cache->Next = Gbl_StringCacheList->Next; 585 Gbl_StringCacheList->Next = Cache; 586 587 /* Leave cache management pointers alone as they pertain to head */ 588 589 Gbl_StringCount++; 590 Gbl_StringSize += Length; 591 592 return (Cache->Buffer); 593 } 594 } 595 596 if ((Gbl_StringCacheNext + Length) >= Gbl_StringCacheLast) 597 { 598 /* Allocate a new buffer */ 599 600 Cache = UtLocalCalloc (sizeof (Cache->Next) + CacheSize); 601 602 /* Link new cache buffer to head of list */ 603 604 Cache->Next = Gbl_StringCacheList; 605 Gbl_StringCacheList = Cache; 606 607 /* Setup cache management pointers */ 608 609 Gbl_StringCacheNext = Cache->Buffer; 610 Gbl_StringCacheLast = Gbl_StringCacheNext + CacheSize; 611 } 612 613 Gbl_StringCount++; 614 Gbl_StringSize += Length; 615 616 Buffer = Gbl_StringCacheNext; 617 Gbl_StringCacheNext += Length; 618 return (Buffer); 619} 620 621 622/****************************************************************************** 623 * 624 * FUNCTION: UtExpandLineBuffers 625 * 626 * PARAMETERS: None. Updates global line buffer pointers. 627 * 628 * RETURN: None. Reallocates the global line buffers 629 * 630 * DESCRIPTION: Called if the current line buffer becomes filled. Reallocates 631 * all global line buffers and updates Gbl_LineBufferSize. NOTE: 632 * Also used for the initial allocation of the buffers, when 633 * all of the buffer pointers are NULL. Initial allocations are 634 * of size ASL_DEFAULT_LINE_BUFFER_SIZE 635 * 636 *****************************************************************************/ 637 638void 639UtExpandLineBuffers ( 640 void) 641{ 642 UINT32 NewSize; 643 644 645 /* Attempt to double the size of all line buffers */ 646 647 NewSize = Gbl_LineBufferSize * 2; 648 if (Gbl_CurrentLineBuffer) 649 { 650 DbgPrint (ASL_DEBUG_OUTPUT, 651 "Increasing line buffer size from %u to %u\n", 652 Gbl_LineBufferSize, NewSize); 653 } 654 655 Gbl_CurrentLineBuffer = realloc (Gbl_CurrentLineBuffer, NewSize); 656 Gbl_LineBufPtr = Gbl_CurrentLineBuffer; 657 if (!Gbl_CurrentLineBuffer) 658 { 659 goto ErrorExit; 660 } 661 662 Gbl_MainTokenBuffer = realloc (Gbl_MainTokenBuffer, NewSize); 663 if (!Gbl_MainTokenBuffer) 664 { 665 goto ErrorExit; 666 } 667 668 Gbl_MacroTokenBuffer = realloc (Gbl_MacroTokenBuffer, NewSize); 669 if (!Gbl_MacroTokenBuffer) 670 { 671 goto ErrorExit; 672 } 673 674 Gbl_ExpressionTokenBuffer = realloc (Gbl_ExpressionTokenBuffer, NewSize); 675 if (!Gbl_ExpressionTokenBuffer) 676 { 677 goto ErrorExit; 678 } 679 680 Gbl_LineBufferSize = NewSize; 681 return; 682 683 684 /* On error above, simply issue error messages and abort, cannot continue */ 685 686ErrorExit: 687 printf ("Could not increase line buffer size from %u to %u\n", 688 Gbl_LineBufferSize, Gbl_LineBufferSize * 2); 689 690 AslError (ASL_ERROR, ASL_MSG_BUFFER_ALLOCATION, 691 NULL, NULL); 692 AslAbort (); 693} 694 695 696/****************************************************************************** 697 * 698 * FUNCTION: UtFreeLineBuffers 699 * 700 * PARAMETERS: None 701 * 702 * RETURN: None 703 * 704 * DESCRIPTION: Free all line buffers 705 * 706 *****************************************************************************/ 707 708void 709UtFreeLineBuffers ( 710 void) 711{ 712 713 free (Gbl_CurrentLineBuffer); 714 free (Gbl_MainTokenBuffer); 715 free (Gbl_MacroTokenBuffer); 716 free (Gbl_ExpressionTokenBuffer); 717} 718 719 720/******************************************************************************* 721 * 722 * FUNCTION: UtInternalizeName 723 * 724 * PARAMETERS: ExternalName - Name to convert 725 * ConvertedName - Where the converted name is returned 726 * 727 * RETURN: Status 728 * 729 * DESCRIPTION: Convert an external (ASL) name to an internal (AML) name 730 * 731 ******************************************************************************/ 732 733ACPI_STATUS 734UtInternalizeName ( 735 char *ExternalName, 736 char **ConvertedName) 737{ 738 ACPI_NAMESTRING_INFO Info; 739 ACPI_STATUS Status; 740 741 742 if (!ExternalName) 743 { 744 return (AE_OK); 745 } 746 747 /* Get the length of the new internal name */ 748 749 Info.ExternalName = ExternalName; 750 AcpiNsGetInternalNameLength (&Info); 751 752 /* We need a segment to store the internal name */ 753 754 Info.InternalName = UtStringCacheCalloc (Info.Length); 755 if (!Info.InternalName) 756 { 757 return (AE_NO_MEMORY); 758 } 759 760 /* Build the name */ 761 762 Status = AcpiNsBuildInternalName (&Info); 763 if (ACPI_FAILURE (Status)) 764 { 765 return (Status); 766 } 767 768 *ConvertedName = Info.InternalName; 769 return (AE_OK); 770} 771 772 773/******************************************************************************* 774 * 775 * FUNCTION: UtPadNameWithUnderscores 776 * 777 * PARAMETERS: NameSeg - Input nameseg 778 * PaddedNameSeg - Output padded nameseg 779 * 780 * RETURN: Padded nameseg. 781 * 782 * DESCRIPTION: Pads a NameSeg with underscores if necessary to form a full 783 * ACPI_NAME. 784 * 785 ******************************************************************************/ 786 787static void 788UtPadNameWithUnderscores ( 789 char *NameSeg, 790 char *PaddedNameSeg) 791{ 792 UINT32 i; 793 794 795 for (i = 0; (i < ACPI_NAME_SIZE); i++) 796 { 797 if (*NameSeg) 798 { 799 *PaddedNameSeg = *NameSeg; 800 NameSeg++; 801 } 802 else 803 { 804 *PaddedNameSeg = '_'; 805 } 806 PaddedNameSeg++; 807 } 808} 809 810 811/******************************************************************************* 812 * 813 * FUNCTION: UtAttachNameseg 814 * 815 * PARAMETERS: Op - Parent parse node 816 * Name - Full ExternalName 817 * 818 * RETURN: None; Sets the NameSeg field in parent node 819 * 820 * DESCRIPTION: Extract the last nameseg of the ExternalName and store it 821 * in the NameSeg field of the Op. 822 * 823 ******************************************************************************/ 824 825static void 826UtAttachNameseg ( 827 ACPI_PARSE_OBJECT *Op, 828 char *Name) 829{ 830 char *NameSeg; 831 char PaddedNameSeg[4]; 832 833 834 if (!Name) 835 { 836 return; 837 } 838 839 /* Look for the last dot in the namepath */ 840 841 NameSeg = strrchr (Name, '.'); 842 if (NameSeg) 843 { 844 /* Found last dot, we have also found the final nameseg */ 845 846 NameSeg++; 847 UtPadNameWithUnderscores (NameSeg, PaddedNameSeg); 848 } 849 else 850 { 851 /* No dots in the namepath, there is only a single nameseg. */ 852 /* Handle prefixes */ 853 854 while (ACPI_IS_ROOT_PREFIX (*Name) || 855 ACPI_IS_PARENT_PREFIX (*Name)) 856 { 857 Name++; 858 } 859 860 /* Remaining string should be one single nameseg */ 861 862 UtPadNameWithUnderscores (Name, PaddedNameSeg); 863 } 864 865 ACPI_MOVE_NAME (Op->Asl.NameSeg, PaddedNameSeg); 866} 867 868 869/******************************************************************************* 870 * 871 * FUNCTION: UtAttachNamepathToOwner 872 * 873 * PARAMETERS: Op - Parent parse node 874 * NameOp - Node that contains the name 875 * 876 * RETURN: Sets the ExternalName and Namepath in the parent node 877 * 878 * DESCRIPTION: Store the name in two forms in the parent node: The original 879 * (external) name, and the internalized name that is used within 880 * the ACPI namespace manager. 881 * 882 ******************************************************************************/ 883 884void 885UtAttachNamepathToOwner ( 886 ACPI_PARSE_OBJECT *Op, 887 ACPI_PARSE_OBJECT *NameOp) 888{ 889 ACPI_STATUS Status; 890 891 892 /* Full external path */ 893 894 Op->Asl.ExternalName = NameOp->Asl.Value.String; 895 896 /* Save the NameOp for possible error reporting later */ 897 898 Op->Asl.ParentMethod = (void *) NameOp; 899 900 /* Last nameseg of the path */ 901 902 UtAttachNameseg (Op, Op->Asl.ExternalName); 903 904 /* Create internalized path */ 905 906 Status = UtInternalizeName (NameOp->Asl.Value.String, &Op->Asl.Namepath); 907 if (ACPI_FAILURE (Status)) 908 { 909 /* TBD: abort on no memory */ 910 } 911} 912 913 914/******************************************************************************* 915 * 916 * FUNCTION: UtDoConstant 917 * 918 * PARAMETERS: String - Hex, Octal, or Decimal string 919 * 920 * RETURN: Converted Integer 921 * 922 * DESCRIPTION: Convert a string to an integer, with error checking. 923 * 924 ******************************************************************************/ 925 926UINT64 927UtDoConstant ( 928 char *String) 929{ 930 ACPI_STATUS Status; 931 UINT64 Converted; 932 char ErrBuf[64]; 933 934 935 Status = UtStrtoul64 (String, 0, &Converted); 936 if (ACPI_FAILURE (Status)) 937 { 938 sprintf (ErrBuf, "%s %s\n", "Conversion error:", 939 AcpiFormatException (Status)); 940 AslCompilererror (ErrBuf); 941 } 942 943 return (Converted); 944} 945 946 947/* TBD: use version in ACPICA main code base? */ 948 949/******************************************************************************* 950 * 951 * FUNCTION: UtStrtoul64 952 * 953 * PARAMETERS: String - Null terminated string 954 * Terminater - Where a pointer to the terminating byte 955 * is returned 956 * Base - Radix of the string 957 * 958 * RETURN: Converted value 959 * 960 * DESCRIPTION: Convert a string into an unsigned value. 961 * 962 ******************************************************************************/ 963 964ACPI_STATUS 965UtStrtoul64 ( 966 char *String, 967 UINT32 Base, 968 UINT64 *RetInteger) 969{ 970 UINT32 Index; 971 UINT32 Sign; 972 UINT64 ReturnValue = 0; 973 ACPI_STATUS Status = AE_OK; 974 975 976 *RetInteger = 0; 977 978 switch (Base) 979 { 980 case 0: 981 case 8: 982 case 10: 983 case 16: 984 985 break; 986 987 default: 988 /* 989 * The specified Base parameter is not in the domain of 990 * this function: 991 */ 992 return (AE_BAD_PARAMETER); 993 } 994 995 /* Skip over any white space in the buffer: */ 996 997 while (isspace ((int) *String) || *String == '\t') 998 { 999 ++String; 1000 } 1001 1002 /* 1003 * The buffer may contain an optional plus or minus sign. 1004 * If it does, then skip over it but remember what is was: 1005 */ 1006 if (*String == '-') 1007 { 1008 Sign = NEGATIVE; 1009 ++String; 1010 } 1011 else if (*String == '+') 1012 { 1013 ++String; 1014 Sign = POSITIVE; 1015 } 1016 else 1017 { 1018 Sign = POSITIVE; 1019 } 1020 1021 /* 1022 * If the input parameter Base is zero, then we need to 1023 * determine if it is octal, decimal, or hexadecimal: 1024 */ 1025 if (Base == 0) 1026 { 1027 if (*String == '0') 1028 { 1029 if (tolower ((int) *(++String)) == 'x') 1030 { 1031 Base = 16; 1032 ++String; 1033 } 1034 else 1035 { 1036 Base = 8; 1037 } 1038 } 1039 else 1040 { 1041 Base = 10; 1042 } 1043 } 1044 1045 /* 1046 * For octal and hexadecimal bases, skip over the leading 1047 * 0 or 0x, if they are present. 1048 */ 1049 if (Base == 8 && *String == '0') 1050 { 1051 String++; 1052 } 1053 1054 if (Base == 16 && 1055 *String == '0' && 1056 tolower ((int) *(++String)) == 'x') 1057 { 1058 String++; 1059 } 1060 1061 /* Main loop: convert the string to an unsigned long */ 1062 1063 while (*String) 1064 { 1065 if (isdigit ((int) *String)) 1066 { 1067 Index = ((UINT8) *String) - '0'; 1068 } 1069 else 1070 { 1071 Index = (UINT8) toupper ((int) *String); 1072 if (isupper ((int) Index)) 1073 { 1074 Index = Index - 'A' + 10; 1075 } 1076 else 1077 { 1078 goto ErrorExit; 1079 } 1080 } 1081 1082 if (Index >= Base) 1083 { 1084 goto ErrorExit; 1085 } 1086 1087 /* Check to see if value is out of range: */ 1088 1089 if (ReturnValue > ((ACPI_UINT64_MAX - (UINT64) Index) / 1090 (UINT64) Base)) 1091 { 1092 goto ErrorExit; 1093 } 1094 else 1095 { 1096 ReturnValue *= Base; 1097 ReturnValue += Index; 1098 } 1099 1100 ++String; 1101 } 1102 1103 1104 /* If a minus sign was present, then "the conversion is negated": */ 1105 1106 if (Sign == NEGATIVE) 1107 { 1108 ReturnValue = (ACPI_UINT32_MAX - ReturnValue) + 1; 1109 } 1110 1111 *RetInteger = ReturnValue; 1112 return (Status); 1113 1114 1115ErrorExit: 1116 switch (Base) 1117 { 1118 case 8: 1119 1120 Status = AE_BAD_OCTAL_CONSTANT; 1121 break; 1122 1123 case 10: 1124 1125 Status = AE_BAD_DECIMAL_CONSTANT; 1126 break; 1127 1128 case 16: 1129 1130 Status = AE_BAD_HEX_CONSTANT; 1131 break; 1132 1133 default: 1134 1135 /* Base validated above */ 1136 1137 break; 1138 } 1139 1140 return (Status); 1141} 1142