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 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; 202 203 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 ******************************************************************************/ 218 219 void 220 UtEndEvent ( 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 ******************************************************************************/ 249 250 void 251 UtConvertByteToHex ( 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 ******************************************************************************/ 278 279 void 280 UtConvertByteToAsmHex ( 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 ******************************************************************************/ 306 307 void 308 DbgPrint ( 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 10 348 349 void 350 UtPrintFormattedName ( 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 ******************************************************************************/ 382 383 void 384 UtSetParseOpName ( 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 ******************************************************************************/ 404 405 void 406 UtDisplaySummary ( 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_OriginalInputFileSize, TotalKeywords); 445 446 /* AML summary */ 447 448 if ((Gbl_ExceptionCount[ASL_ERROR] == 0) || (Gbl_IgnoreErrors)) 449 { 450 if (Gbl_Files[ASL_FILE_AML_OUTPUT].Handle) 451 { 452 FlPrintFile (FileId, 453 "%-14s %s - %u bytes, %u named objects, %u executable opcodes\n", 454 "AML Output:", 455 Gbl_Files[ASL_FILE_AML_OUTPUT].Filename, Gbl_TableLength, 456 TotalNamedObjects, TotalExecutableOpcodes); 457 } 458 } 459 } 460 461 /* Display summary of any optional files */ 462 463 for (i = ASL_FILE_SOURCE_OUTPUT; i <= ASL_MAX_FILE_TYPE; i++) 464 { 465 if (!Gbl_Files[i].Filename || !Gbl_Files[i].Handle) 466 { 467 continue; 468 } 469 470 /* .SRC is a temp file unless specifically requested */ 471 472 if ((i == ASL_FILE_SOURCE_OUTPUT) && (!Gbl_SourceOutputFlag)) 473 { 474 continue; 475 } 476 477 /* .PRE is the preprocessor intermediate file */ 478 479 if ((i == ASL_FILE_PREPROCESSOR) && (!Gbl_KeepPreprocessorTempFile)) 480 { 481 continue; 482 } 483 484 FlPrintFile (FileId, "%14s %s - %u bytes\n", 485 Gbl_Files[i].ShortDescription, 486 Gbl_Files[i].Filename, FlGetFileSize (i)); 487 } 488 489 /* Error summary */ 490 491 FlPrintFile (FileId, 492 "\nCompilation complete. %u Errors, %u Warnings, %u Remarks", 493 Gbl_ExceptionCount[ASL_ERROR], 494 Gbl_ExceptionCount[ASL_WARNING] + 495 Gbl_ExceptionCount[ASL_WARNING2] + 496 Gbl_ExceptionCount[ASL_WARNING3], 497 Gbl_ExceptionCount[ASL_REMARK]); 498 499 if (Gbl_FileType != ASL_INPUT_TYPE_ASCII_DATA) 500 { 501 FlPrintFile (FileId, ", %u Optimizations", 502 Gbl_ExceptionCount[ASL_OPTIMIZATION]); 503 504 if (TotalFolds) 505 { 506 FlPrintFile (FileId, ", %u Constants Folded", TotalFolds); 507 } 508 } 509 510 FlPrintFile (FileId, "\n"); 511 } 512 513 514 /******************************************************************************* 515 * 516 * FUNCTION: UtCheckIntegerRange 517 * 518 * PARAMETERS: Op - Integer parse node 519 * LowValue - Smallest allowed value 520 * HighValue - Largest allowed value 521 * 522 * RETURN: Op if OK, otherwise NULL 523 * 524 * DESCRIPTION: Check integer for an allowable range 525 * 526 ******************************************************************************/ 527 528 ACPI_PARSE_OBJECT * 529 UtCheckIntegerRange ( 530 ACPI_PARSE_OBJECT *Op, 531 UINT32 LowValue, 532 UINT32 HighValue) 533 { 534 535 if (!Op) 536 { 537 return (NULL); 538 } 539 540 if ((Op->Asl.Value.Integer < LowValue) || 541 (Op->Asl.Value.Integer > HighValue)) 542 { 543 sprintf (MsgBuffer, "0x%X, allowable: 0x%X-0x%X", 544 (UINT32) Op->Asl.Value.Integer, LowValue, HighValue); 545 546 AslError (ASL_ERROR, ASL_MSG_RANGE, Op, MsgBuffer); 547 return (NULL); 548 } 549 550 return (Op); 551 } 552 553 554 /******************************************************************************* 555 * 556 * FUNCTION: UtStringCacheCalloc 557 * 558 * PARAMETERS: Length - Size of buffer requested 559 * 560 * RETURN: Pointer to the buffer. Aborts on allocation failure 561 * 562 * DESCRIPTION: Allocate a string buffer. Bypass the local 563 * dynamic memory manager for performance reasons (This has a 564 * major impact on the speed of the compiler.) 565 * 566 ******************************************************************************/ 567 568 char * 569 UtStringCacheCalloc ( 570 UINT32 Length) 571 { 572 char *Buffer; 573 ASL_CACHE_INFO *Cache; 574 UINT32 CacheSize = ASL_STRING_CACHE_SIZE; 575 576 577 if (Length > CacheSize) 578 { 579 CacheSize = Length; 580 581 if (Gbl_StringCacheList) 582 { 583 Cache = UtLocalCalloc (sizeof (Cache->Next) + CacheSize); 584 585 /* Link new cache buffer just following head of list */ 586 587 Cache->Next = Gbl_StringCacheList->Next; 588 Gbl_StringCacheList->Next = Cache; 589 590 /* Leave cache management pointers alone as they pertain to head */ 591 592 Gbl_StringCount++; 593 Gbl_StringSize += Length; 594 595 return (Cache->Buffer); 596 } 597 } 598 599 if ((Gbl_StringCacheNext + Length) >= Gbl_StringCacheLast) 600 { 601 /* Allocate a new buffer */ 602 603 Cache = UtLocalCalloc (sizeof (Cache->Next) + CacheSize); 604 605 /* Link new cache buffer to head of list */ 606 607 Cache->Next = Gbl_StringCacheList; 608 Gbl_StringCacheList = Cache; 609 610 /* Setup cache management pointers */ 611 612 Gbl_StringCacheNext = Cache->Buffer; 613 Gbl_StringCacheLast = Gbl_StringCacheNext + CacheSize; 614 } 615 616 Gbl_StringCount++; 617 Gbl_StringSize += Length; 618 619 Buffer = Gbl_StringCacheNext; 620 Gbl_StringCacheNext += Length; 621 return (Buffer); 622 } 623 624 625 /****************************************************************************** 626 * 627 * FUNCTION: UtExpandLineBuffers 628 * 629 * PARAMETERS: None. Updates global line buffer pointers. 630 * 631 * RETURN: None. Reallocates the global line buffers 632 * 633 * DESCRIPTION: Called if the current line buffer becomes filled. Reallocates 634 * all global line buffers and updates Gbl_LineBufferSize. NOTE: 635 * Also used for the initial allocation of the buffers, when 636 * all of the buffer pointers are NULL. Initial allocations are 637 * of size ASL_DEFAULT_LINE_BUFFER_SIZE 638 * 639 *****************************************************************************/ 640 641 void 642 UtExpandLineBuffers ( 643 void) 644 { 645 UINT32 NewSize; 646 647 648 /* Attempt to double the size of all line buffers */ 649 650 NewSize = Gbl_LineBufferSize * 2; 651 if (Gbl_CurrentLineBuffer) 652 { 653 DbgPrint (ASL_DEBUG_OUTPUT, 654 "Increasing line buffer size from %u to %u\n", 655 Gbl_LineBufferSize, NewSize); 656 } 657 658 Gbl_CurrentLineBuffer = realloc (Gbl_CurrentLineBuffer, NewSize); 659 Gbl_LineBufPtr = Gbl_CurrentLineBuffer; 660 if (!Gbl_CurrentLineBuffer) 661 { 662 goto ErrorExit; 663 } 664 665 Gbl_MainTokenBuffer = realloc (Gbl_MainTokenBuffer, NewSize); 666 if (!Gbl_MainTokenBuffer) 667 { 668 goto ErrorExit; 669 } 670 671 Gbl_MacroTokenBuffer = realloc (Gbl_MacroTokenBuffer, NewSize); 672 if (!Gbl_MacroTokenBuffer) 673 { 674 goto ErrorExit; 675 } 676 677 Gbl_ExpressionTokenBuffer = realloc (Gbl_ExpressionTokenBuffer, NewSize); 678 if (!Gbl_ExpressionTokenBuffer) 679 { 680 goto ErrorExit; 681 } 682 683 Gbl_LineBufferSize = NewSize; 684 return; 685 686 687 /* On error above, simply issue error messages and abort, cannot continue */ 688 689 ErrorExit: 690 printf ("Could not increase line buffer size from %u to %u\n", 691 Gbl_LineBufferSize, Gbl_LineBufferSize * 2); 692 693 AslError (ASL_ERROR, ASL_MSG_BUFFER_ALLOCATION, 694 NULL, NULL); 695 AslAbort (); 696 } 697 698 699 /****************************************************************************** 700 * 701 * FUNCTION: UtFreeLineBuffers 702 * 703 * PARAMETERS: None 704 * 705 * RETURN: None 706 * 707 * DESCRIPTION: Free all line buffers 708 * 709 *****************************************************************************/ 710 711 void 712 UtFreeLineBuffers ( 713 void) 714 { 715 716 free (Gbl_CurrentLineBuffer); 717 free (Gbl_MainTokenBuffer); 718 free (Gbl_MacroTokenBuffer); 719 free (Gbl_ExpressionTokenBuffer); 720 } 721 722 723 /******************************************************************************* 724 * 725 * FUNCTION: UtInternalizeName 726 * 727 * PARAMETERS: ExternalName - Name to convert 728 * ConvertedName - Where the converted name is returned 729 * 730 * RETURN: Status 731 * 732 * DESCRIPTION: Convert an external (ASL) name to an internal (AML) name 733 * 734 ******************************************************************************/ 735 736 ACPI_STATUS 737 UtInternalizeName ( 738 char *ExternalName, 739 char **ConvertedName) 740 { 741 ACPI_NAMESTRING_INFO Info; 742 ACPI_STATUS Status; 743 744 745 if (!ExternalName) 746 { 747 return (AE_OK); 748 } 749 750 /* Get the length of the new internal name */ 751 752 Info.ExternalName = ExternalName; 753 AcpiNsGetInternalNameLength (&Info); 754 755 /* We need a segment to store the internal name */ 756 757 Info.InternalName = UtStringCacheCalloc (Info.Length); 758 if (!Info.InternalName) 759 { 760 return (AE_NO_MEMORY); 761 } 762 763 /* Build the name */ 764 765 Status = AcpiNsBuildInternalName (&Info); 766 if (ACPI_FAILURE (Status)) 767 { 768 return (Status); 769 } 770 771 *ConvertedName = Info.InternalName; 772 return (AE_OK); 773 } 774 775 776 /******************************************************************************* 777 * 778 * FUNCTION: UtPadNameWithUnderscores 779 * 780 * PARAMETERS: NameSeg - Input nameseg 781 * PaddedNameSeg - Output padded nameseg 782 * 783 * RETURN: Padded nameseg. 784 * 785 * DESCRIPTION: Pads a NameSeg with underscores if necessary to form a full 786 * ACPI_NAME. 787 * 788 ******************************************************************************/ 789 790 static void 791 UtPadNameWithUnderscores ( 792 char *NameSeg, 793 char *PaddedNameSeg) 794 { 795 UINT32 i; 796 797 798 for (i = 0; (i < ACPI_NAME_SIZE); i++) 799 { 800 if (*NameSeg) 801 { 802 *PaddedNameSeg = *NameSeg; 803 NameSeg++; 804 } 805 else 806 { 807 *PaddedNameSeg = '_'; 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 = NEGATIVE; 1012 ++String; 1013 } 1014 else if (*String == '+') 1015 { 1016 ++String; 1017 Sign = POSITIVE; 1018 } 1019 else 1020 { 1021 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 == 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