1 /****************************************************************************** 2 * 3 * Module Name: aslutils -- compiler utilities 4 * 5 *****************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2014, 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 #define ACPI_TABLE_HELP_FORMAT "%8u) %s %s\n" 81 82 void 83 UtDisplaySupportedTables ( 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 ******************************************************************************/ 123 124 void 125 UtDisplayConstantOpcodes ( 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 ******************************************************************************/ 156 157 void * 158 UtLocalCalloc ( 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 ******************************************************************************/ 193 194 UINT8 195 UtBeginEvent ( 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 ******************************************************************************/ 226 227 void 228 UtEndEvent ( 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 ******************************************************************************/ 257 258 void 259 UtConvertByteToHex ( 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 ******************************************************************************/ 286 287 void 288 UtConvertByteToAsmHex ( 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 ******************************************************************************/ 314 315 void 316 DbgPrint ( 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 10 356 357 void 358 UtPrintFormattedName ( 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 ******************************************************************************/ 390 391 void 392 UtSetParseOpName ( 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 ******************************************************************************/ 412 413 void 414 UtDisplaySummary ( 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, 507 ", %u Optimizations", Gbl_ExceptionCount[ASL_OPTIMIZATION]); 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; 574 575 576 if (Length > ASL_STRING_CACHE_SIZE) 577 { 578 Buffer = UtLocalCalloc (Length); 579 return (Buffer); 580 } 581 582 if ((Gbl_StringCacheNext + Length) >= Gbl_StringCacheLast) 583 { 584 /* Allocate a new buffer */ 585 586 Cache = UtLocalCalloc (sizeof (Cache->Next) + 587 ASL_STRING_CACHE_SIZE); 588 589 /* Link new cache buffer to head of list */ 590 591 Cache->Next = Gbl_StringCacheList; 592 Gbl_StringCacheList = Cache; 593 594 /* Setup cache management pointers */ 595 596 Gbl_StringCacheNext = Cache->Buffer; 597 Gbl_StringCacheLast = Gbl_StringCacheNext + ASL_STRING_CACHE_SIZE; 598 } 599 600 Gbl_StringCount++; 601 Gbl_StringSize += Length; 602 603 Buffer = Gbl_StringCacheNext; 604 Gbl_StringCacheNext += Length; 605 return (Buffer); 606 } 607 608 609 /****************************************************************************** 610 * 611 * FUNCTION: UtExpandLineBuffers 612 * 613 * PARAMETERS: None. Updates global line buffer pointers. 614 * 615 * RETURN: None. Reallocates the global line buffers 616 * 617 * DESCRIPTION: Called if the current line buffer becomes filled. Reallocates 618 * all global line buffers and updates Gbl_LineBufferSize. NOTE: 619 * Also used for the initial allocation of the buffers, when 620 * all of the buffer pointers are NULL. Initial allocations are 621 * of size ASL_DEFAULT_LINE_BUFFER_SIZE 622 * 623 *****************************************************************************/ 624 625 void 626 UtExpandLineBuffers ( 627 void) 628 { 629 UINT32 NewSize; 630 631 632 /* Attempt to double the size of all line buffers */ 633 634 NewSize = Gbl_LineBufferSize * 2; 635 if (Gbl_CurrentLineBuffer) 636 { 637 DbgPrint (ASL_DEBUG_OUTPUT, 638 "Increasing line buffer size from %u to %u\n", 639 Gbl_LineBufferSize, NewSize); 640 } 641 642 Gbl_CurrentLineBuffer = realloc (Gbl_CurrentLineBuffer, NewSize); 643 Gbl_LineBufPtr = Gbl_CurrentLineBuffer; 644 if (!Gbl_CurrentLineBuffer) 645 { 646 goto ErrorExit; 647 } 648 649 Gbl_MainTokenBuffer = realloc (Gbl_MainTokenBuffer, NewSize); 650 if (!Gbl_MainTokenBuffer) 651 { 652 goto ErrorExit; 653 } 654 655 Gbl_MacroTokenBuffer = realloc (Gbl_MacroTokenBuffer, NewSize); 656 if (!Gbl_MacroTokenBuffer) 657 { 658 goto ErrorExit; 659 } 660 661 Gbl_ExpressionTokenBuffer = realloc (Gbl_ExpressionTokenBuffer, NewSize); 662 if (!Gbl_ExpressionTokenBuffer) 663 { 664 goto ErrorExit; 665 } 666 667 Gbl_LineBufferSize = NewSize; 668 return; 669 670 671 /* On error above, simply issue error messages and abort, cannot continue */ 672 673 ErrorExit: 674 printf ("Could not increase line buffer size from %u to %u\n", 675 Gbl_LineBufferSize, Gbl_LineBufferSize * 2); 676 677 AslError (ASL_ERROR, ASL_MSG_BUFFER_ALLOCATION, 678 NULL, NULL); 679 AslAbort (); 680 } 681 682 683 /****************************************************************************** 684 * 685 * FUNCTION: UtFreeLineBuffers 686 * 687 * PARAMETERS: None 688 * 689 * RETURN: None 690 * 691 * DESCRIPTION: Free all line buffers 692 * 693 *****************************************************************************/ 694 695 void 696 UtFreeLineBuffers ( 697 void) 698 { 699 700 free (Gbl_CurrentLineBuffer); 701 free (Gbl_MainTokenBuffer); 702 free (Gbl_MacroTokenBuffer); 703 free (Gbl_ExpressionTokenBuffer); 704 } 705 706 707 /******************************************************************************* 708 * 709 * FUNCTION: UtInternalizeName 710 * 711 * PARAMETERS: ExternalName - Name to convert 712 * ConvertedName - Where the converted name is returned 713 * 714 * RETURN: Status 715 * 716 * DESCRIPTION: Convert an external (ASL) name to an internal (AML) name 717 * 718 ******************************************************************************/ 719 720 ACPI_STATUS 721 UtInternalizeName ( 722 char *ExternalName, 723 char **ConvertedName) 724 { 725 ACPI_NAMESTRING_INFO Info; 726 ACPI_STATUS Status; 727 728 729 if (!ExternalName) 730 { 731 return (AE_OK); 732 } 733 734 /* Get the length of the new internal name */ 735 736 Info.ExternalName = ExternalName; 737 AcpiNsGetInternalNameLength (&Info); 738 739 /* We need a segment to store the internal name */ 740 741 Info.InternalName = UtStringCacheCalloc (Info.Length); 742 if (!Info.InternalName) 743 { 744 return (AE_NO_MEMORY); 745 } 746 747 /* Build the name */ 748 749 Status = AcpiNsBuildInternalName (&Info); 750 if (ACPI_FAILURE (Status)) 751 { 752 return (Status); 753 } 754 755 *ConvertedName = Info.InternalName; 756 return (AE_OK); 757 } 758 759 760 /******************************************************************************* 761 * 762 * FUNCTION: UtPadNameWithUnderscores 763 * 764 * PARAMETERS: NameSeg - Input nameseg 765 * PaddedNameSeg - Output padded nameseg 766 * 767 * RETURN: Padded nameseg. 768 * 769 * DESCRIPTION: Pads a NameSeg with underscores if necessary to form a full 770 * ACPI_NAME. 771 * 772 ******************************************************************************/ 773 774 static void 775 UtPadNameWithUnderscores ( 776 char *NameSeg, 777 char *PaddedNameSeg) 778 { 779 UINT32 i; 780 781 782 for (i = 0; (i < ACPI_NAME_SIZE); i++) 783 { 784 if (*NameSeg) 785 { 786 *PaddedNameSeg = *NameSeg; 787 NameSeg++; 788 } 789 else 790 { 791 *PaddedNameSeg = '_'; 792 } 793 PaddedNameSeg++; 794 } 795 } 796 797 798 /******************************************************************************* 799 * 800 * FUNCTION: UtAttachNameseg 801 * 802 * PARAMETERS: Op - Parent parse node 803 * Name - Full ExternalName 804 * 805 * RETURN: None; Sets the NameSeg field in parent node 806 * 807 * DESCRIPTION: Extract the last nameseg of the ExternalName and store it 808 * in the NameSeg field of the Op. 809 * 810 ******************************************************************************/ 811 812 static void 813 UtAttachNameseg ( 814 ACPI_PARSE_OBJECT *Op, 815 char *Name) 816 { 817 char *NameSeg; 818 char PaddedNameSeg[4]; 819 820 821 if (!Name) 822 { 823 return; 824 } 825 826 /* Look for the last dot in the namepath */ 827 828 NameSeg = strrchr (Name, '.'); 829 if (NameSeg) 830 { 831 /* Found last dot, we have also found the final nameseg */ 832 833 NameSeg++; 834 UtPadNameWithUnderscores (NameSeg, PaddedNameSeg); 835 } 836 else 837 { 838 /* No dots in the namepath, there is only a single nameseg. */ 839 /* Handle prefixes */ 840 841 while (ACPI_IS_ROOT_PREFIX (*Name) || 842 ACPI_IS_PARENT_PREFIX (*Name)) 843 { 844 Name++; 845 } 846 847 /* Remaining string should be one single nameseg */ 848 849 UtPadNameWithUnderscores (Name, PaddedNameSeg); 850 } 851 852 ACPI_MOVE_NAME (Op->Asl.NameSeg, PaddedNameSeg); 853 } 854 855 856 /******************************************************************************* 857 * 858 * FUNCTION: UtAttachNamepathToOwner 859 * 860 * PARAMETERS: Op - Parent parse node 861 * NameOp - Node that contains the name 862 * 863 * RETURN: Sets the ExternalName and Namepath in the parent node 864 * 865 * DESCRIPTION: Store the name in two forms in the parent node: The original 866 * (external) name, and the internalized name that is used within 867 * the ACPI namespace manager. 868 * 869 ******************************************************************************/ 870 871 void 872 UtAttachNamepathToOwner ( 873 ACPI_PARSE_OBJECT *Op, 874 ACPI_PARSE_OBJECT *NameOp) 875 { 876 ACPI_STATUS Status; 877 878 879 /* Full external path */ 880 881 Op->Asl.ExternalName = NameOp->Asl.Value.String; 882 883 /* Save the NameOp for possible error reporting later */ 884 885 Op->Asl.ParentMethod = (void *) NameOp; 886 887 /* Last nameseg of the path */ 888 889 UtAttachNameseg (Op, Op->Asl.ExternalName); 890 891 /* Create internalized path */ 892 893 Status = UtInternalizeName (NameOp->Asl.Value.String, &Op->Asl.Namepath); 894 if (ACPI_FAILURE (Status)) 895 { 896 /* TBD: abort on no memory */ 897 } 898 } 899 900 901 /******************************************************************************* 902 * 903 * FUNCTION: UtDoConstant 904 * 905 * PARAMETERS: String - Hex, Octal, or Decimal string 906 * 907 * RETURN: Converted Integer 908 * 909 * DESCRIPTION: Convert a string to an integer, with error checking. 910 * 911 ******************************************************************************/ 912 913 UINT64 914 UtDoConstant ( 915 char *String) 916 { 917 ACPI_STATUS Status; 918 UINT64 Converted; 919 char ErrBuf[64]; 920 921 922 Status = UtStrtoul64 (String, 0, &Converted); 923 if (ACPI_FAILURE (Status)) 924 { 925 sprintf (ErrBuf, "%s %s\n", "Conversion error:", 926 AcpiFormatException (Status)); 927 AslCompilererror (ErrBuf); 928 } 929 930 return (Converted); 931 } 932 933 934 /* TBD: use version in ACPICA main code base? */ 935 936 /******************************************************************************* 937 * 938 * FUNCTION: UtStrtoul64 939 * 940 * PARAMETERS: String - Null terminated string 941 * Terminater - Where a pointer to the terminating byte 942 * is returned 943 * Base - Radix of the string 944 * 945 * RETURN: Converted value 946 * 947 * DESCRIPTION: Convert a string into an unsigned value. 948 * 949 ******************************************************************************/ 950 951 ACPI_STATUS 952 UtStrtoul64 ( 953 char *String, 954 UINT32 Base, 955 UINT64 *RetInteger) 956 { 957 UINT32 Index; 958 UINT32 Sign; 959 UINT64 ReturnValue = 0; 960 ACPI_STATUS Status = AE_OK; 961 962 963 *RetInteger = 0; 964 965 switch (Base) 966 { 967 case 0: 968 case 8: 969 case 10: 970 case 16: 971 972 break; 973 974 default: 975 /* 976 * The specified Base parameter is not in the domain of 977 * this function: 978 */ 979 return (AE_BAD_PARAMETER); 980 } 981 982 /* Skip over any white space in the buffer: */ 983 984 while (isspace ((int) *String) || *String == '\t') 985 { 986 ++String; 987 } 988 989 /* 990 * The buffer may contain an optional plus or minus sign. 991 * If it does, then skip over it but remember what is was: 992 */ 993 if (*String == '-') 994 { 995 Sign = NEGATIVE; 996 ++String; 997 } 998 else if (*String == '+') 999 { 1000 ++String; 1001 Sign = POSITIVE; 1002 } 1003 else 1004 { 1005 Sign = POSITIVE; 1006 } 1007 1008 /* 1009 * If the input parameter Base is zero, then we need to 1010 * determine if it is octal, decimal, or hexadecimal: 1011 */ 1012 if (Base == 0) 1013 { 1014 if (*String == '0') 1015 { 1016 if (tolower ((int) *(++String)) == 'x') 1017 { 1018 Base = 16; 1019 ++String; 1020 } 1021 else 1022 { 1023 Base = 8; 1024 } 1025 } 1026 else 1027 { 1028 Base = 10; 1029 } 1030 } 1031 1032 /* 1033 * For octal and hexadecimal bases, skip over the leading 1034 * 0 or 0x, if they are present. 1035 */ 1036 if (Base == 8 && *String == '0') 1037 { 1038 String++; 1039 } 1040 1041 if (Base == 16 && 1042 *String == '0' && 1043 tolower ((int) *(++String)) == 'x') 1044 { 1045 String++; 1046 } 1047 1048 /* Main loop: convert the string to an unsigned long */ 1049 1050 while (*String) 1051 { 1052 if (isdigit ((int) *String)) 1053 { 1054 Index = ((UINT8) *String) - '0'; 1055 } 1056 else 1057 { 1058 Index = (UINT8) toupper ((int) *String); 1059 if (isupper ((int) Index)) 1060 { 1061 Index = Index - 'A' + 10; 1062 } 1063 else 1064 { 1065 goto ErrorExit; 1066 } 1067 } 1068 1069 if (Index >= Base) 1070 { 1071 goto ErrorExit; 1072 } 1073 1074 /* Check to see if value is out of range: */ 1075 1076 if (ReturnValue > ((ACPI_UINT64_MAX - (UINT64) Index) / 1077 (UINT64) Base)) 1078 { 1079 goto ErrorExit; 1080 } 1081 else 1082 { 1083 ReturnValue *= Base; 1084 ReturnValue += Index; 1085 } 1086 1087 ++String; 1088 } 1089 1090 1091 /* If a minus sign was present, then "the conversion is negated": */ 1092 1093 if (Sign == NEGATIVE) 1094 { 1095 ReturnValue = (ACPI_UINT32_MAX - ReturnValue) + 1; 1096 } 1097 1098 *RetInteger = ReturnValue; 1099 return (Status); 1100 1101 1102 ErrorExit: 1103 switch (Base) 1104 { 1105 case 8: 1106 1107 Status = AE_BAD_OCTAL_CONSTANT; 1108 break; 1109 1110 case 10: 1111 1112 Status = AE_BAD_DECIMAL_CONSTANT; 1113 break; 1114 1115 case 16: 1116 1117 Status = AE_BAD_HEX_CONSTANT; 1118 break; 1119 1120 default: 1121 1122 /* Base validated above */ 1123 1124 break; 1125 } 1126 1127 return (Status); 1128 } 1129