aslutils.c revision 281687
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 80#define ACPI_TABLE_HELP_FORMAT "%8u) %s %s\n" 81 82void 83UtDisplaySupportedTables ( 84 void) 85{ 86 ACPI_DMTABLE_DATA *TableData; 87 UINT32 i; 88 89 90 printf ("\nACPI tables supported by iASL version %8.8X:\n" 91 " (Compiler, Disassembler, Template Generator)\n\n", 92 ACPI_CA_VERSION); 93 94 /* Special tables */ 95 96 printf (" Special tables and AML tables:\n"); 97 printf (ACPI_TABLE_HELP_FORMAT, 1, ACPI_RSDP_NAME, "Root System Description Pointer"); 98 printf (ACPI_TABLE_HELP_FORMAT, 2, ACPI_SIG_FACS, "Firmware ACPI Control Structure"); 99 printf (ACPI_TABLE_HELP_FORMAT, 3, ACPI_SIG_DSDT, "Differentiated System Description Table"); 100 printf (ACPI_TABLE_HELP_FORMAT, 4, ACPI_SIG_SSDT, "Secondary System Description Table"); 101 102 /* All data tables with common table header */ 103 104 printf ("\n Standard ACPI data tables:\n"); 105 for (TableData = AcpiDmTableData, i = 5; TableData->Signature; TableData++, i++) 106 { 107 printf (ACPI_TABLE_HELP_FORMAT, i, TableData->Signature, TableData->Name); 108 } 109} 110 111 112/******************************************************************************* 113 * 114 * FUNCTION: UtDisplayConstantOpcodes 115 * 116 * PARAMETERS: None 117 * 118 * RETURN: None 119 * 120 * DESCRIPTION: Print AML opcodes that can be used in constant expressions. 121 * 122 ******************************************************************************/ 123 124void 125UtDisplayConstantOpcodes ( 126 void) 127{ 128 UINT32 i; 129 130 131 printf ("Constant expression opcode information\n\n"); 132 133 for (i = 0; i < sizeof (AcpiGbl_AmlOpInfo) / sizeof (ACPI_OPCODE_INFO); i++) 134 { 135 if (AcpiGbl_AmlOpInfo[i].Flags & AML_CONSTANT) 136 { 137 printf ("%s\n", AcpiGbl_AmlOpInfo[i].Name); 138 } 139 } 140} 141 142 143/******************************************************************************* 144 * 145 * FUNCTION: UtLocalCalloc 146 * 147 * PARAMETERS: Size - Bytes to be allocated 148 * 149 * RETURN: Pointer to the allocated memory. Guaranteed to be valid. 150 * 151 * DESCRIPTION: Allocate zero-initialized memory. Aborts the compile on an 152 * allocation failure, on the assumption that nothing more can be 153 * accomplished. 154 * 155 ******************************************************************************/ 156 157void * 158UtLocalCalloc ( 159 UINT32 Size) 160{ 161 void *Allocated; 162 163 164 Allocated = ACPI_ALLOCATE_ZEROED (Size); 165 if (!Allocated) 166 { 167 AslCommonError (ASL_ERROR, ASL_MSG_MEMORY_ALLOCATION, 168 Gbl_CurrentLineNumber, Gbl_LogicalLineNumber, 169 Gbl_InputByteCount, Gbl_CurrentColumn, 170 Gbl_Files[ASL_FILE_INPUT].Filename, NULL); 171 172 CmCleanupAndExit (); 173 exit (1); 174 } 175 176 TotalAllocations++; 177 TotalAllocated += Size; 178 return (Allocated); 179} 180 181 182/******************************************************************************* 183 * 184 * FUNCTION: UtBeginEvent 185 * 186 * PARAMETERS: Name - Ascii name of this event 187 * 188 * RETURN: Event number (integer index) 189 * 190 * DESCRIPTION: Saves the current time with this event 191 * 192 ******************************************************************************/ 193 194UINT8 195UtBeginEvent ( 196 char *Name) 197{ 198 199 if (AslGbl_NextEvent >= ASL_NUM_EVENTS) 200 { 201 AcpiOsPrintf ("Ran out of compiler event structs!\n"); 202 return (AslGbl_NextEvent); 203 } 204 205 /* Init event with current (start) time */ 206 207 AslGbl_Events[AslGbl_NextEvent].StartTime = AcpiOsGetTimer (); 208 AslGbl_Events[AslGbl_NextEvent].EventName = Name; 209 AslGbl_Events[AslGbl_NextEvent].Valid = TRUE; 210 211 return (AslGbl_NextEvent++); 212} 213 214 215/******************************************************************************* 216 * 217 * FUNCTION: UtEndEvent 218 * 219 * PARAMETERS: Event - Event number (integer index) 220 * 221 * RETURN: None 222 * 223 * DESCRIPTION: Saves the current time (end time) with this event 224 * 225 ******************************************************************************/ 226 227void 228UtEndEvent ( 229 UINT8 Event) 230{ 231 232 if (Event >= ASL_NUM_EVENTS) 233 { 234 return; 235 } 236 237 /* Insert end time for event */ 238 239 AslGbl_Events[Event].EndTime = AcpiOsGetTimer (); 240} 241 242 243/******************************************************************************* 244 * 245 * FUNCTION: UtConvertByteToHex 246 * 247 * PARAMETERS: RawByte - Binary data 248 * Buffer - Pointer to where the hex bytes will be 249 * stored 250 * 251 * RETURN: Ascii hex byte is stored in Buffer. 252 * 253 * DESCRIPTION: Perform hex-to-ascii translation. The return data is prefixed 254 * with "0x" 255 * 256 ******************************************************************************/ 257 258void 259UtConvertByteToHex ( 260 UINT8 RawByte, 261 UINT8 *Buffer) 262{ 263 264 Buffer[0] = '0'; 265 Buffer[1] = 'x'; 266 267 Buffer[2] = (UINT8) AcpiUtHexToAsciiChar (RawByte, 4); 268 Buffer[3] = (UINT8) AcpiUtHexToAsciiChar (RawByte, 0); 269} 270 271 272/******************************************************************************* 273 * 274 * FUNCTION: UtConvertByteToAsmHex 275 * 276 * PARAMETERS: RawByte - Binary data 277 * Buffer - Pointer to where the hex bytes will be 278 * stored 279 * 280 * RETURN: Ascii hex byte is stored in Buffer. 281 * 282 * DESCRIPTION: Perform hex-to-ascii translation. The return data is prefixed 283 * with '0', and a trailing 'h' is added. 284 * 285 ******************************************************************************/ 286 287void 288UtConvertByteToAsmHex ( 289 UINT8 RawByte, 290 UINT8 *Buffer) 291{ 292 293 Buffer[0] = '0'; 294 Buffer[1] = (UINT8) AcpiUtHexToAsciiChar (RawByte, 4); 295 Buffer[2] = (UINT8) AcpiUtHexToAsciiChar (RawByte, 0); 296 Buffer[3] = 'h'; 297} 298 299 300/******************************************************************************* 301 * 302 * FUNCTION: DbgPrint 303 * 304 * PARAMETERS: Type - Type of output 305 * Fmt - Printf format string 306 * ... - variable printf list 307 * 308 * RETURN: None 309 * 310 * DESCRIPTION: Conditional print statement. Prints to stderr only if the 311 * debug flag is set. 312 * 313 ******************************************************************************/ 314 315void 316DbgPrint ( 317 UINT32 Type, 318 char *Fmt, 319 ...) 320{ 321 va_list Args; 322 323 324 if (!Gbl_DebugFlag) 325 { 326 return; 327 } 328 329 if ((Type == ASL_PARSE_OUTPUT) && 330 (!(AslCompilerdebug))) 331 { 332 return; 333 } 334 335 va_start (Args, Fmt); 336 (void) vfprintf (stderr, Fmt, Args); 337 va_end (Args); 338 return; 339} 340 341 342/******************************************************************************* 343 * 344 * FUNCTION: UtPrintFormattedName 345 * 346 * PARAMETERS: ParseOpcode - Parser keyword ID 347 * Level - Indentation level 348 * 349 * RETURN: None 350 * 351 * DESCRIPTION: Print the ascii name of the parse opcode. 352 * 353 ******************************************************************************/ 354 355#define TEXT_OFFSET 10 356 357void 358UtPrintFormattedName ( 359 UINT16 ParseOpcode, 360 UINT32 Level) 361{ 362 363 if (Level) 364 { 365 DbgPrint (ASL_TREE_OUTPUT, 366 "%*s", (3 * Level), " "); 367 } 368 DbgPrint (ASL_TREE_OUTPUT, 369 " %-20.20s", UtGetOpName (ParseOpcode)); 370 371 if (Level < TEXT_OFFSET) 372 { 373 DbgPrint (ASL_TREE_OUTPUT, 374 "%*s", (TEXT_OFFSET - Level) * 3, " "); 375 } 376} 377 378 379/******************************************************************************* 380 * 381 * FUNCTION: UtSetParseOpName 382 * 383 * PARAMETERS: Op - Parse op to be named. 384 * 385 * RETURN: None 386 * 387 * DESCRIPTION: Insert the ascii name of the parse opcode 388 * 389 ******************************************************************************/ 390 391void 392UtSetParseOpName ( 393 ACPI_PARSE_OBJECT *Op) 394{ 395 396 strncpy (Op->Asl.ParseOpName, UtGetOpName (Op->Asl.ParseOpcode), 397 ACPI_MAX_PARSEOP_NAME); 398} 399 400 401/******************************************************************************* 402 * 403 * FUNCTION: UtDisplaySummary 404 * 405 * PARAMETERS: FileID - ID of outpout file 406 * 407 * RETURN: None 408 * 409 * DESCRIPTION: Display compilation statistics 410 * 411 ******************************************************************************/ 412 413void 414UtDisplaySummary ( 415 UINT32 FileId) 416{ 417 UINT32 i; 418 419 420 if (FileId != ASL_FILE_STDOUT) 421 { 422 /* Compiler name and version number */ 423 424 FlPrintFile (FileId, "%s version %X%s\n\n", 425 ASL_COMPILER_NAME, (UINT32) ACPI_CA_VERSION, ACPI_WIDTH); 426 } 427 428 /* Summary of main input and output files */ 429 430 if (Gbl_FileType == ASL_INPUT_TYPE_ASCII_DATA) 431 { 432 FlPrintFile (FileId, 433 "%-14s %s - %u lines, %u bytes, %u fields\n", 434 "Table Input:", 435 Gbl_Files[ASL_FILE_INPUT].Filename, Gbl_CurrentLineNumber, 436 Gbl_InputByteCount, Gbl_InputFieldCount); 437 438 if ((Gbl_ExceptionCount[ASL_ERROR] == 0) || (Gbl_IgnoreErrors)) 439 { 440 FlPrintFile (FileId, 441 "%-14s %s - %u bytes\n", 442 "Binary Output:", 443 Gbl_Files[ASL_FILE_AML_OUTPUT].Filename, Gbl_TableLength); 444 } 445 } 446 else 447 { 448 FlPrintFile (FileId, 449 "%-14s %s - %u lines, %u bytes, %u keywords\n", 450 "ASL Input:", 451 Gbl_Files[ASL_FILE_INPUT].Filename, Gbl_CurrentLineNumber, 452 Gbl_InputByteCount, TotalKeywords); 453 454 /* AML summary */ 455 456 if ((Gbl_ExceptionCount[ASL_ERROR] == 0) || (Gbl_IgnoreErrors)) 457 { 458 FlPrintFile (FileId, 459 "%-14s %s - %u bytes, %u named objects, %u executable opcodes\n", 460 "AML Output:", 461 Gbl_Files[ASL_FILE_AML_OUTPUT].Filename, Gbl_TableLength, 462 TotalNamedObjects, TotalExecutableOpcodes); 463 } 464 } 465 466 /* Display summary of any optional files */ 467 468 for (i = ASL_FILE_SOURCE_OUTPUT; i <= ASL_MAX_FILE_TYPE; i++) 469 { 470 if (!Gbl_Files[i].Filename || !Gbl_Files[i].Handle) 471 { 472 continue; 473 } 474 475 /* .SRC is a temp file unless specifically requested */ 476 477 if ((i == ASL_FILE_SOURCE_OUTPUT) && (!Gbl_SourceOutputFlag)) 478 { 479 continue; 480 } 481 482 /* .I is a temp file unless specifically requested */ 483 484 if ((i == ASL_FILE_PREPROCESSOR) && (!Gbl_PreprocessorOutputFlag)) 485 { 486 continue; 487 } 488 489 FlPrintFile (FileId, "%14s %s - %u bytes\n", 490 Gbl_Files[i].ShortDescription, 491 Gbl_Files[i].Filename, FlGetFileSize (i)); 492 } 493 494 /* Error summary */ 495 496 FlPrintFile (FileId, 497 "\nCompilation complete. %u Errors, %u Warnings, %u Remarks", 498 Gbl_ExceptionCount[ASL_ERROR], 499 Gbl_ExceptionCount[ASL_WARNING] + 500 Gbl_ExceptionCount[ASL_WARNING2] + 501 Gbl_ExceptionCount[ASL_WARNING3], 502 Gbl_ExceptionCount[ASL_REMARK]); 503 504 if (Gbl_FileType != ASL_INPUT_TYPE_ASCII_DATA) 505 { 506 FlPrintFile (FileId, ", %u Optimizations", 507 Gbl_ExceptionCount[ASL_OPTIMIZATION]); 508 509 if (TotalFolds) 510 { 511 FlPrintFile (FileId, ", %u Constants Folded", TotalFolds); 512 } 513 } 514 515 FlPrintFile (FileId, "\n"); 516} 517 518 519/******************************************************************************* 520 * 521 * FUNCTION: UtCheckIntegerRange 522 * 523 * PARAMETERS: Op - Integer parse node 524 * LowValue - Smallest allowed value 525 * HighValue - Largest allowed value 526 * 527 * RETURN: Op if OK, otherwise NULL 528 * 529 * DESCRIPTION: Check integer for an allowable range 530 * 531 ******************************************************************************/ 532 533ACPI_PARSE_OBJECT * 534UtCheckIntegerRange ( 535 ACPI_PARSE_OBJECT *Op, 536 UINT32 LowValue, 537 UINT32 HighValue) 538{ 539 540 if (!Op) 541 { 542 return (NULL); 543 } 544 545 if ((Op->Asl.Value.Integer < LowValue) || 546 (Op->Asl.Value.Integer > HighValue)) 547 { 548 sprintf (MsgBuffer, "0x%X, allowable: 0x%X-0x%X", 549 (UINT32) Op->Asl.Value.Integer, LowValue, HighValue); 550 551 AslError (ASL_ERROR, ASL_MSG_RANGE, Op, MsgBuffer); 552 return (NULL); 553 } 554 555 return (Op); 556} 557 558 559/******************************************************************************* 560 * 561 * FUNCTION: UtStringCacheCalloc 562 * 563 * PARAMETERS: Length - Size of buffer requested 564 * 565 * RETURN: Pointer to the buffer. Aborts on allocation failure 566 * 567 * DESCRIPTION: Allocate a string buffer. Bypass the local 568 * dynamic memory manager for performance reasons (This has a 569 * major impact on the speed of the compiler.) 570 * 571 ******************************************************************************/ 572 573char * 574UtStringCacheCalloc ( 575 UINT32 Length) 576{ 577 char *Buffer; 578 ASL_CACHE_INFO *Cache; 579 UINT32 CacheSize = ASL_STRING_CACHE_SIZE; 580 581 582 if (Length > CacheSize) 583 { 584 CacheSize = Length; 585 586 if (Gbl_StringCacheList) 587 { 588 Cache = UtLocalCalloc (sizeof (Cache->Next) + CacheSize); 589 590 /* Link new cache buffer just following head of list */ 591 592 Cache->Next = Gbl_StringCacheList->Next; 593 Gbl_StringCacheList->Next = Cache; 594 595 /* Leave cache management pointers alone as they pertain to head */ 596 597 Gbl_StringCount++; 598 Gbl_StringSize += Length; 599 600 return (Cache->Buffer); 601 } 602 } 603 604 if ((Gbl_StringCacheNext + Length) >= Gbl_StringCacheLast) 605 { 606 /* Allocate a new buffer */ 607 608 Cache = UtLocalCalloc (sizeof (Cache->Next) + CacheSize); 609 610 /* Link new cache buffer to head of list */ 611 612 Cache->Next = Gbl_StringCacheList; 613 Gbl_StringCacheList = Cache; 614 615 /* Setup cache management pointers */ 616 617 Gbl_StringCacheNext = Cache->Buffer; 618 Gbl_StringCacheLast = Gbl_StringCacheNext + CacheSize; 619 } 620 621 Gbl_StringCount++; 622 Gbl_StringSize += Length; 623 624 Buffer = Gbl_StringCacheNext; 625 Gbl_StringCacheNext += Length; 626 return (Buffer); 627} 628 629 630/****************************************************************************** 631 * 632 * FUNCTION: UtExpandLineBuffers 633 * 634 * PARAMETERS: None. Updates global line buffer pointers. 635 * 636 * RETURN: None. Reallocates the global line buffers 637 * 638 * DESCRIPTION: Called if the current line buffer becomes filled. Reallocates 639 * all global line buffers and updates Gbl_LineBufferSize. NOTE: 640 * Also used for the initial allocation of the buffers, when 641 * all of the buffer pointers are NULL. Initial allocations are 642 * of size ASL_DEFAULT_LINE_BUFFER_SIZE 643 * 644 *****************************************************************************/ 645 646void 647UtExpandLineBuffers ( 648 void) 649{ 650 UINT32 NewSize; 651 652 653 /* Attempt to double the size of all line buffers */ 654 655 NewSize = Gbl_LineBufferSize * 2; 656 if (Gbl_CurrentLineBuffer) 657 { 658 DbgPrint (ASL_DEBUG_OUTPUT, 659 "Increasing line buffer size from %u to %u\n", 660 Gbl_LineBufferSize, NewSize); 661 } 662 663 Gbl_CurrentLineBuffer = realloc (Gbl_CurrentLineBuffer, NewSize); 664 Gbl_LineBufPtr = Gbl_CurrentLineBuffer; 665 if (!Gbl_CurrentLineBuffer) 666 { 667 goto ErrorExit; 668 } 669 670 Gbl_MainTokenBuffer = realloc (Gbl_MainTokenBuffer, NewSize); 671 if (!Gbl_MainTokenBuffer) 672 { 673 goto ErrorExit; 674 } 675 676 Gbl_MacroTokenBuffer = realloc (Gbl_MacroTokenBuffer, NewSize); 677 if (!Gbl_MacroTokenBuffer) 678 { 679 goto ErrorExit; 680 } 681 682 Gbl_ExpressionTokenBuffer = realloc (Gbl_ExpressionTokenBuffer, NewSize); 683 if (!Gbl_ExpressionTokenBuffer) 684 { 685 goto ErrorExit; 686 } 687 688 Gbl_LineBufferSize = NewSize; 689 return; 690 691 692 /* On error above, simply issue error messages and abort, cannot continue */ 693 694ErrorExit: 695 printf ("Could not increase line buffer size from %u to %u\n", 696 Gbl_LineBufferSize, Gbl_LineBufferSize * 2); 697 698 AslError (ASL_ERROR, ASL_MSG_BUFFER_ALLOCATION, 699 NULL, NULL); 700 AslAbort (); 701} 702 703 704/****************************************************************************** 705 * 706 * FUNCTION: UtFreeLineBuffers 707 * 708 * PARAMETERS: None 709 * 710 * RETURN: None 711 * 712 * DESCRIPTION: Free all line buffers 713 * 714 *****************************************************************************/ 715 716void 717UtFreeLineBuffers ( 718 void) 719{ 720 721 free (Gbl_CurrentLineBuffer); 722 free (Gbl_MainTokenBuffer); 723 free (Gbl_MacroTokenBuffer); 724 free (Gbl_ExpressionTokenBuffer); 725} 726 727 728/******************************************************************************* 729 * 730 * FUNCTION: UtInternalizeName 731 * 732 * PARAMETERS: ExternalName - Name to convert 733 * ConvertedName - Where the converted name is returned 734 * 735 * RETURN: Status 736 * 737 * DESCRIPTION: Convert an external (ASL) name to an internal (AML) name 738 * 739 ******************************************************************************/ 740 741ACPI_STATUS 742UtInternalizeName ( 743 char *ExternalName, 744 char **ConvertedName) 745{ 746 ACPI_NAMESTRING_INFO Info; 747 ACPI_STATUS Status; 748 749 750 if (!ExternalName) 751 { 752 return (AE_OK); 753 } 754 755 /* Get the length of the new internal name */ 756 757 Info.ExternalName = ExternalName; 758 AcpiNsGetInternalNameLength (&Info); 759 760 /* We need a segment to store the internal name */ 761 762 Info.InternalName = UtStringCacheCalloc (Info.Length); 763 if (!Info.InternalName) 764 { 765 return (AE_NO_MEMORY); 766 } 767 768 /* Build the name */ 769 770 Status = AcpiNsBuildInternalName (&Info); 771 if (ACPI_FAILURE (Status)) 772 { 773 return (Status); 774 } 775 776 *ConvertedName = Info.InternalName; 777 return (AE_OK); 778} 779 780 781/******************************************************************************* 782 * 783 * FUNCTION: UtPadNameWithUnderscores 784 * 785 * PARAMETERS: NameSeg - Input nameseg 786 * PaddedNameSeg - Output padded nameseg 787 * 788 * RETURN: Padded nameseg. 789 * 790 * DESCRIPTION: Pads a NameSeg with underscores if necessary to form a full 791 * ACPI_NAME. 792 * 793 ******************************************************************************/ 794 795static void 796UtPadNameWithUnderscores ( 797 char *NameSeg, 798 char *PaddedNameSeg) 799{ 800 UINT32 i; 801 802 803 for (i = 0; (i < ACPI_NAME_SIZE); i++) 804 { 805 if (*NameSeg) 806 { 807 *PaddedNameSeg = *NameSeg; 808 NameSeg++; 809 } 810 else 811 { 812 *PaddedNameSeg = '_'; 813 } 814 PaddedNameSeg++; 815 } 816} 817 818 819/******************************************************************************* 820 * 821 * FUNCTION: UtAttachNameseg 822 * 823 * PARAMETERS: Op - Parent parse node 824 * Name - Full ExternalName 825 * 826 * RETURN: None; Sets the NameSeg field in parent node 827 * 828 * DESCRIPTION: Extract the last nameseg of the ExternalName and store it 829 * in the NameSeg field of the Op. 830 * 831 ******************************************************************************/ 832 833static void 834UtAttachNameseg ( 835 ACPI_PARSE_OBJECT *Op, 836 char *Name) 837{ 838 char *NameSeg; 839 char PaddedNameSeg[4]; 840 841 842 if (!Name) 843 { 844 return; 845 } 846 847 /* Look for the last dot in the namepath */ 848 849 NameSeg = strrchr (Name, '.'); 850 if (NameSeg) 851 { 852 /* Found last dot, we have also found the final nameseg */ 853 854 NameSeg++; 855 UtPadNameWithUnderscores (NameSeg, PaddedNameSeg); 856 } 857 else 858 { 859 /* No dots in the namepath, there is only a single nameseg. */ 860 /* Handle prefixes */ 861 862 while (ACPI_IS_ROOT_PREFIX (*Name) || 863 ACPI_IS_PARENT_PREFIX (*Name)) 864 { 865 Name++; 866 } 867 868 /* Remaining string should be one single nameseg */ 869 870 UtPadNameWithUnderscores (Name, PaddedNameSeg); 871 } 872 873 ACPI_MOVE_NAME (Op->Asl.NameSeg, PaddedNameSeg); 874} 875 876 877/******************************************************************************* 878 * 879 * FUNCTION: UtAttachNamepathToOwner 880 * 881 * PARAMETERS: Op - Parent parse node 882 * NameOp - Node that contains the name 883 * 884 * RETURN: Sets the ExternalName and Namepath in the parent node 885 * 886 * DESCRIPTION: Store the name in two forms in the parent node: The original 887 * (external) name, and the internalized name that is used within 888 * the ACPI namespace manager. 889 * 890 ******************************************************************************/ 891 892void 893UtAttachNamepathToOwner ( 894 ACPI_PARSE_OBJECT *Op, 895 ACPI_PARSE_OBJECT *NameOp) 896{ 897 ACPI_STATUS Status; 898 899 900 /* Full external path */ 901 902 Op->Asl.ExternalName = NameOp->Asl.Value.String; 903 904 /* Save the NameOp for possible error reporting later */ 905 906 Op->Asl.ParentMethod = (void *) NameOp; 907 908 /* Last nameseg of the path */ 909 910 UtAttachNameseg (Op, Op->Asl.ExternalName); 911 912 /* Create internalized path */ 913 914 Status = UtInternalizeName (NameOp->Asl.Value.String, &Op->Asl.Namepath); 915 if (ACPI_FAILURE (Status)) 916 { 917 /* TBD: abort on no memory */ 918 } 919} 920 921 922/******************************************************************************* 923 * 924 * FUNCTION: UtDoConstant 925 * 926 * PARAMETERS: String - Hex, Octal, or Decimal string 927 * 928 * RETURN: Converted Integer 929 * 930 * DESCRIPTION: Convert a string to an integer, with error checking. 931 * 932 ******************************************************************************/ 933 934UINT64 935UtDoConstant ( 936 char *String) 937{ 938 ACPI_STATUS Status; 939 UINT64 Converted; 940 char ErrBuf[64]; 941 942 943 Status = UtStrtoul64 (String, 0, &Converted); 944 if (ACPI_FAILURE (Status)) 945 { 946 sprintf (ErrBuf, "%s %s\n", "Conversion error:", 947 AcpiFormatException (Status)); 948 AslCompilererror (ErrBuf); 949 } 950 951 return (Converted); 952} 953 954 955/* TBD: use version in ACPICA main code base? */ 956 957/******************************************************************************* 958 * 959 * FUNCTION: UtStrtoul64 960 * 961 * PARAMETERS: String - Null terminated string 962 * Terminater - Where a pointer to the terminating byte 963 * is returned 964 * Base - Radix of the string 965 * 966 * RETURN: Converted value 967 * 968 * DESCRIPTION: Convert a string into an unsigned value. 969 * 970 ******************************************************************************/ 971 972ACPI_STATUS 973UtStrtoul64 ( 974 char *String, 975 UINT32 Base, 976 UINT64 *RetInteger) 977{ 978 UINT32 Index; 979 UINT32 Sign; 980 UINT64 ReturnValue = 0; 981 ACPI_STATUS Status = AE_OK; 982 983 984 *RetInteger = 0; 985 986 switch (Base) 987 { 988 case 0: 989 case 8: 990 case 10: 991 case 16: 992 993 break; 994 995 default: 996 /* 997 * The specified Base parameter is not in the domain of 998 * this function: 999 */ 1000 return (AE_BAD_PARAMETER); 1001 } 1002 1003 /* Skip over any white space in the buffer: */ 1004 1005 while (isspace ((int) *String) || *String == '\t') 1006 { 1007 ++String; 1008 } 1009 1010 /* 1011 * The buffer may contain an optional plus or minus sign. 1012 * If it does, then skip over it but remember what is was: 1013 */ 1014 if (*String == '-') 1015 { 1016 Sign = NEGATIVE; 1017 ++String; 1018 } 1019 else if (*String == '+') 1020 { 1021 ++String; 1022 Sign = POSITIVE; 1023 } 1024 else 1025 { 1026 Sign = POSITIVE; 1027 } 1028 1029 /* 1030 * If the input parameter Base is zero, then we need to 1031 * determine if it is octal, decimal, or hexadecimal: 1032 */ 1033 if (Base == 0) 1034 { 1035 if (*String == '0') 1036 { 1037 if (tolower ((int) *(++String)) == 'x') 1038 { 1039 Base = 16; 1040 ++String; 1041 } 1042 else 1043 { 1044 Base = 8; 1045 } 1046 } 1047 else 1048 { 1049 Base = 10; 1050 } 1051 } 1052 1053 /* 1054 * For octal and hexadecimal bases, skip over the leading 1055 * 0 or 0x, if they are present. 1056 */ 1057 if (Base == 8 && *String == '0') 1058 { 1059 String++; 1060 } 1061 1062 if (Base == 16 && 1063 *String == '0' && 1064 tolower ((int) *(++String)) == 'x') 1065 { 1066 String++; 1067 } 1068 1069 /* Main loop: convert the string to an unsigned long */ 1070 1071 while (*String) 1072 { 1073 if (isdigit ((int) *String)) 1074 { 1075 Index = ((UINT8) *String) - '0'; 1076 } 1077 else 1078 { 1079 Index = (UINT8) toupper ((int) *String); 1080 if (isupper ((int) Index)) 1081 { 1082 Index = Index - 'A' + 10; 1083 } 1084 else 1085 { 1086 goto ErrorExit; 1087 } 1088 } 1089 1090 if (Index >= Base) 1091 { 1092 goto ErrorExit; 1093 } 1094 1095 /* Check to see if value is out of range: */ 1096 1097 if (ReturnValue > ((ACPI_UINT64_MAX - (UINT64) Index) / 1098 (UINT64) Base)) 1099 { 1100 goto ErrorExit; 1101 } 1102 else 1103 { 1104 ReturnValue *= Base; 1105 ReturnValue += Index; 1106 } 1107 1108 ++String; 1109 } 1110 1111 1112 /* If a minus sign was present, then "the conversion is negated": */ 1113 1114 if (Sign == NEGATIVE) 1115 { 1116 ReturnValue = (ACPI_UINT32_MAX - ReturnValue) + 1; 1117 } 1118 1119 *RetInteger = ReturnValue; 1120 return (Status); 1121 1122 1123ErrorExit: 1124 switch (Base) 1125 { 1126 case 8: 1127 1128 Status = AE_BAD_OCTAL_CONSTANT; 1129 break; 1130 1131 case 10: 1132 1133 Status = AE_BAD_DECIMAL_CONSTANT; 1134 break; 1135 1136 case 16: 1137 1138 Status = AE_BAD_HEX_CONSTANT; 1139 break; 1140 1141 default: 1142 1143 /* Base validated above */ 1144 1145 break; 1146 } 1147 1148 return (Status); 1149} 1150