1 /****************************************************************************** 2 * 3 * Module Name: aslparseop - Parse op create/allocate/cache interfaces 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp. 12 * All rights reserved. 13 * 14 * 2. License 15 * 16 * 2.1. This is your license from Intel Corp. under its intellectual property 17 * rights. You may have additional license terms from the party that provided 18 * you this software, covering your right to use that party's intellectual 19 * property rights. 20 * 21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22 * copy of the source code appearing in this file ("Covered Code") an 23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24 * base code distributed originally by Intel ("Original Intel Code") to copy, 25 * make derivatives, distribute, use and display any portion of the Covered 26 * Code in any form, with the right to sublicense such rights; and 27 * 28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29 * license (with the right to sublicense), under only those claims of Intel 30 * patents that are infringed by the Original Intel Code, to make, use, sell, 31 * offer to sell, and import the Covered Code and derivative works thereof 32 * solely to the minimum extent necessary to exercise the above copyright 33 * license, and in no event shall the patent license extend to any additions 34 * to or modifications of the Original Intel Code. No other license or right 35 * is granted directly or by implication, estoppel or otherwise; 36 * 37 * The above copyright and patent license is granted only if the following 38 * conditions are met: 39 * 40 * 3. Conditions 41 * 42 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43 * Redistribution of source code of any substantial portion of the Covered 44 * Code or modification with rights to further distribute source must include 45 * the above Copyright Notice, the above License, this list of Conditions, 46 * and the following Disclaimer and Export Compliance provision. In addition, 47 * Licensee must cause all Covered Code to which Licensee contributes to 48 * contain a file documenting the changes Licensee made to create that Covered 49 * Code and the date of any change. Licensee must include in that file the 50 * documentation of any changes made by any predecessor Licensee. Licensee 51 * must include a prominent statement that the modification is derived, 52 * directly or indirectly, from Original Intel Code. 53 * 54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55 * Redistribution of source code of any substantial portion of the Covered 56 * Code or modification without rights to further distribute source must 57 * include the following Disclaimer and Export Compliance provision in the 58 * documentation and/or other materials provided with distribution. In 59 * addition, Licensee may not authorize further sublicense of source of any 60 * portion of the Covered Code, and must include terms to the effect that the 61 * license from Licensee to its licensee is limited to the intellectual 62 * property embodied in the software Licensee provides to its licensee, and 63 * not to intellectual property embodied in modifications its licensee may 64 * make. 65 * 66 * 3.3. Redistribution of Executable. Redistribution in executable form of any 67 * substantial portion of the Covered Code or modification must reproduce the 68 * above Copyright Notice, and the following Disclaimer and Export Compliance 69 * provision in the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3.4. Intel retains all right, title, and interest in and to the Original 73 * Intel Code. 74 * 75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76 * Intel shall be used in advertising or otherwise to promote the sale, use or 77 * other dealings in products derived from or relating to the Covered Code 78 * without prior written authorization from Intel. 79 * 80 * 4. Disclaimer and Export Compliance 81 * 82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88 * PARTICULAR PURPOSE. 89 * 90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 97 * LIMITED REMEDY. 98 * 99 * 4.3. Licensee shall not export, either directly or indirectly, any of this 100 * software or system incorporating such software without first obtaining any 101 * required license or other approval from the U. S. Department of Commerce or 102 * any other agency or department of the United States Government. In the 103 * event Licensee exports any such software from the United States or 104 * re-exports any such software from a foreign destination, Licensee shall 105 * ensure that the distribution and export/re-export of the software is in 106 * compliance with all laws, regulations, orders, or other restrictions of the 107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 108 * any of its subsidiaries will export/re-export any technical data, process, 109 * software, or service, directly or indirectly, to any country for which the 110 * United States government or any agency thereof requires an export license, 111 * other governmental approval, or letter of assurance, without first obtaining 112 * such license, approval or letter. 113 * 114 ***************************************************************************** 115 * 116 * Alternatively, you may choose to be licensed under the terms of the 117 * following license: 118 * 119 * Redistribution and use in source and binary forms, with or without 120 * modification, are permitted provided that the following conditions 121 * are met: 122 * 1. Redistributions of source code must retain the above copyright 123 * notice, this list of conditions, and the following disclaimer, 124 * without modification. 125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 126 * substantially similar to the "NO WARRANTY" disclaimer below 127 * ("Disclaimer") and any redistribution must be conditioned upon 128 * including a substantially similar Disclaimer requirement for further 129 * binary redistribution. 130 * 3. Neither the names of the above-listed copyright holders nor the names 131 * of any contributors may be used to endorse or promote products derived 132 * from this software without specific prior written permission. 133 * 134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 145 * 146 * Alternatively, you may choose to be licensed under the terms of the 147 * GNU General Public License ("GPL") version 2 as published by the Free 148 * Software Foundation. 149 * 150 *****************************************************************************/ 151 152 #include "aslcompiler.h" 153 #include "aslcompiler.y.h" 154 #include "acapps.h" 155 #include "acconvert.h" 156 157 #define _COMPONENT ACPI_COMPILER 158 ACPI_MODULE_NAME ("aslparseop") 159 160 161 /******************************************************************************* 162 * 163 * FUNCTION: TrCreateOp 164 * 165 * PARAMETERS: ParseOpcode - Opcode to be assigned to the op 166 * NumChildren - Number of children to follow 167 * ... - A list of child ops to link to the new 168 * op. NumChildren long. 169 * 170 * RETURN: Pointer to the new op. Aborts on allocation failure 171 * 172 * DESCRIPTION: Create a new parse op and link together a list of child 173 * ops underneath the new op. 174 * 175 ******************************************************************************/ 176 177 ACPI_PARSE_OBJECT * 178 TrCreateOp ( 179 UINT32 ParseOpcode, 180 UINT32 NumChildren, 181 ...) 182 { 183 ACPI_PARSE_OBJECT *Op; 184 ACPI_PARSE_OBJECT *Child; 185 ACPI_PARSE_OBJECT *PrevChild; 186 va_list ap; 187 UINT32 i; 188 BOOLEAN FirstChild; 189 190 191 va_start (ap, NumChildren); 192 193 /* Allocate one new op */ 194 195 Op = TrAllocateOp (ParseOpcode); 196 197 DbgPrint (ASL_PARSE_OUTPUT, 198 "\nCreateOp Ln/Col %u/%u NewParent %p Child %u Op %s ", 199 Op->Asl.LineNumber, Op->Asl.Column, Op, 200 NumChildren, UtGetOpName(ParseOpcode)); 201 202 /* Some extra debug output based on the parse opcode */ 203 204 switch (ParseOpcode) 205 { 206 case PARSEOP_ASL_CODE: 207 208 Gbl_ParseTreeRoot = Op; 209 Op->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG; 210 DbgPrint (ASL_PARSE_OUTPUT, "ASLCODE (Tree Completed)->"); 211 break; 212 213 case PARSEOP_DEFINITION_BLOCK: 214 215 DbgPrint (ASL_PARSE_OUTPUT, "DEFINITION_BLOCK (Tree Completed)->"); 216 break; 217 218 case PARSEOP_OPERATIONREGION: 219 220 DbgPrint (ASL_PARSE_OUTPUT, "OPREGION->"); 221 break; 222 223 case PARSEOP_OR: 224 225 DbgPrint (ASL_PARSE_OUTPUT, "OR->"); 226 break; 227 228 default: 229 230 /* Nothing to do for other opcodes */ 231 232 break; 233 } 234 235 /* Link the new op to its children */ 236 237 PrevChild = NULL; 238 FirstChild = TRUE; 239 for (i = 0; i < NumChildren; i++) 240 { 241 /* Get the next child */ 242 243 Child = va_arg (ap, ACPI_PARSE_OBJECT *); 244 DbgPrint (ASL_PARSE_OUTPUT, "%p, ", Child); 245 246 /* 247 * If child is NULL, this means that an optional argument 248 * was omitted. We must create a placeholder with a special 249 * opcode (DEFAULT_ARG) so that the code generator will know 250 * that it must emit the correct default for this argument 251 */ 252 if (!Child) 253 { 254 Child = TrAllocateOp (PARSEOP_DEFAULT_ARG); 255 } 256 257 /* Link first child to parent */ 258 259 if (FirstChild) 260 { 261 FirstChild = FALSE; 262 Op->Asl.Child = Child; 263 264 /* 265 * For the ASL-/ASL+ converter: if the ParseOp is a Connection, 266 * External, Offset or AccessAs, it means that the comments in the 267 * FirstChild belongs to their parent due to the parsing order in 268 * the .y files. To correct this, take the comments in the 269 * FirstChild place it in the parent. This also means that 270 * legitimate comments for the child gets put to the parent. 271 */ 272 if (AcpiGbl_CaptureComments && 273 ((ParseOpcode == PARSEOP_CONNECTION) || 274 (ParseOpcode == PARSEOP_EXTERNAL) || 275 (ParseOpcode == PARSEOP_OFFSET) || 276 (ParseOpcode == PARSEOP_ACCESSAS))) 277 { 278 Op->Asl.CommentList = Child->Asl.CommentList; 279 Op->Asl.EndBlkComment = Child->Asl.EndBlkComment; 280 Op->Asl.InlineComment = Child->Asl.InlineComment; 281 Op->Asl.FileChanged = Child->Asl.FileChanged; 282 283 Child->Asl.CommentList = NULL; 284 Child->Asl.EndBlkComment = NULL; 285 Child->Asl.InlineComment = NULL; 286 Child->Asl.FileChanged = FALSE; 287 288 /* 289 * These do not need to be "passed off". They can be copied 290 * because the code for these opcodes should be printed in the 291 * same file. 292 */ 293 Op->Asl.Filename = Child->Asl.Filename; 294 Op->Asl.ParentFilename = Child->Asl.ParentFilename; 295 } 296 } 297 298 /* Point all children to parent */ 299 300 Child->Asl.Parent = Op; 301 302 /* Link children in a peer list */ 303 304 if (PrevChild) 305 { 306 PrevChild->Asl.Next = Child; 307 }; 308 309 /* Get the comment from last child in the resource template call */ 310 311 if (AcpiGbl_CaptureComments && 312 (Op->Asl.ParseOpcode == PARSEOP_RESOURCETEMPLATE)) 313 { 314 CvDbgPrint ("Transferred current comment list to this op.\n"); 315 Op->Asl.CommentList = Child->Asl.CommentList; 316 Child->Asl.CommentList = NULL; 317 318 Op->Asl.InlineComment = Child->Asl.InlineComment; 319 Child->Asl.InlineComment = NULL; 320 } 321 322 /* 323 * This child might be a list, point all ops in the list 324 * to the same parent 325 */ 326 while (Child->Asl.Next) 327 { 328 Child = Child->Asl.Next; 329 Child->Asl.Parent = Op; 330 } 331 332 PrevChild = Child; 333 } 334 335 va_end(ap); 336 DbgPrint (ASL_PARSE_OUTPUT, "\n"); 337 return (Op); 338 } 339 340 341 /******************************************************************************* 342 * 343 * FUNCTION: TrCreateLeafOp 344 * 345 * PARAMETERS: ParseOpcode - New opcode to be assigned to the op 346 * 347 * RETURN: Pointer to the new op. Aborts on allocation failure 348 * 349 * DESCRIPTION: Create a simple leaf op (no children or peers, and no value 350 * assigned to the op) 351 * 352 ******************************************************************************/ 353 354 ACPI_PARSE_OBJECT * 355 TrCreateLeafOp ( 356 UINT32 ParseOpcode) 357 { 358 ACPI_PARSE_OBJECT *Op; 359 360 361 Op = TrAllocateOp (ParseOpcode); 362 363 DbgPrint (ASL_PARSE_OUTPUT, 364 "\nCreateLeafOp Ln/Col %u/%u NewOp %p Op %s\n\n", 365 Op->Asl.LineNumber, Op->Asl.Column, Op, UtGetOpName (ParseOpcode)); 366 367 return (Op); 368 } 369 370 371 /******************************************************************************* 372 * 373 * FUNCTION: TrCreateValuedLeafOp 374 * 375 * PARAMETERS: ParseOpcode - New opcode to be assigned to the op 376 * Value - Value to be assigned to the op 377 * 378 * RETURN: Pointer to the new op. Aborts on allocation failure 379 * 380 * DESCRIPTION: Create a leaf op (no children or peers) with a value 381 * assigned to it 382 * 383 ******************************************************************************/ 384 385 ACPI_PARSE_OBJECT * 386 TrCreateValuedLeafOp ( 387 UINT32 ParseOpcode, 388 UINT64 Value) 389 { 390 ACPI_PARSE_OBJECT *Op; 391 392 393 Op = TrAllocateOp (ParseOpcode); 394 Op->Asl.Value.Integer = Value; 395 396 DbgPrint (ASL_PARSE_OUTPUT, 397 "\nCreateValuedLeafOp Ln/Col %u/%u NewOp %p " 398 "Op %s Value %8.8X%8.8X ", 399 Op->Asl.LineNumber, Op->Asl.Column, Op, UtGetOpName(ParseOpcode), 400 ACPI_FORMAT_UINT64 (Value)); 401 402 switch (ParseOpcode) 403 { 404 case PARSEOP_STRING_LITERAL: 405 406 DbgPrint (ASL_PARSE_OUTPUT, "STRING->%s", Value); 407 break; 408 409 case PARSEOP_NAMESEG: 410 411 DbgPrint (ASL_PARSE_OUTPUT, "NAMESEG->%s", Value); 412 break; 413 414 case PARSEOP_NAMESTRING: 415 416 DbgPrint (ASL_PARSE_OUTPUT, "NAMESTRING->%s", Value); 417 break; 418 419 case PARSEOP_EISAID: 420 421 DbgPrint (ASL_PARSE_OUTPUT, "EISAID->%s", Value); 422 break; 423 424 case PARSEOP_METHOD: 425 426 DbgPrint (ASL_PARSE_OUTPUT, "METHOD"); 427 break; 428 429 case PARSEOP_INTEGER: 430 431 DbgPrint (ASL_PARSE_OUTPUT, "INTEGER->%8.8X%8.8X", 432 ACPI_FORMAT_UINT64 (Value)); 433 break; 434 435 default: 436 break; 437 } 438 439 DbgPrint (ASL_PARSE_OUTPUT, "\n\n"); 440 return (Op); 441 } 442 443 444 /******************************************************************************* 445 * 446 * FUNCTION: TrCreateTargetOp 447 * 448 * PARAMETERS: OriginalOp - Op to be copied 449 * 450 * RETURN: Pointer to the new op. Aborts on allocation failure 451 * 452 * DESCRIPTION: Copy an existing op (and subtree). Used in ASL+ (C-style) 453 * expressions where the target is the same as one of the 454 * operands. A new op and subtree must be created from the 455 * original so that the parse tree can be linked properly. 456 * 457 * NOTE: This code is specific to target operands that are the last 458 * operand in an ASL/AML operator. Meaning that the top-level 459 * parse Op in a possible subtree has a NULL Next pointer. 460 * This simplifies the recursion. 461 * 462 * Subtree example: 463 * DeRefOf (Local1) += 32 464 * 465 * This gets converted to: 466 * Add (DeRefOf (Local1), 32, DeRefOf (Local1)) 467 * 468 * Each DeRefOf has a single child, Local1. Even more complex 469 * subtrees can be created via the Index and DeRefOf operators. 470 * 471 ******************************************************************************/ 472 473 ACPI_PARSE_OBJECT * 474 TrCreateTargetOp ( 475 ACPI_PARSE_OBJECT *OriginalOp, 476 ACPI_PARSE_OBJECT *ParentOp) 477 { 478 ACPI_PARSE_OBJECT *Op; 479 480 481 if (!OriginalOp) 482 { 483 return (NULL); 484 } 485 486 Op = UtParseOpCacheCalloc (); 487 488 /* Copy the pertinent values (omit link pointer fields) */ 489 490 Op->Asl.Value = OriginalOp->Asl.Value; 491 Op->Asl.Filename = OriginalOp->Asl.Filename; 492 Op->Asl.LineNumber = OriginalOp->Asl.LineNumber; 493 Op->Asl.LogicalLineNumber = OriginalOp->Asl.LogicalLineNumber; 494 Op->Asl.LogicalByteOffset = OriginalOp->Asl.LogicalByteOffset; 495 Op->Asl.Column = OriginalOp->Asl.Column; 496 Op->Asl.Flags = OriginalOp->Asl.Flags; 497 Op->Asl.CompileFlags = OriginalOp->Asl.CompileFlags; 498 Op->Asl.AmlOpcode = OriginalOp->Asl.AmlOpcode; 499 Op->Asl.ParseOpcode = OriginalOp->Asl.ParseOpcode; 500 Op->Asl.Parent = ParentOp; 501 502 UtSetParseOpName (Op); 503 504 /* Copy a possible subtree below this op */ 505 506 if (OriginalOp->Asl.Child) 507 { 508 Op->Asl.Child = TrCreateTargetOp (OriginalOp->Asl.Child, Op); 509 } 510 511 if (OriginalOp->Asl.Next) /* Null for top-level op */ 512 { 513 Op->Asl.Next = TrCreateTargetOp (OriginalOp->Asl.Next, ParentOp); 514 } 515 516 return (Op); 517 } 518 519 520 /******************************************************************************* 521 * 522 * FUNCTION: TrCreateAssignmentOp 523 * 524 * PARAMETERS: Target - Assignment target 525 * Source - Assignment source 526 * 527 * RETURN: Pointer to the new op. Aborts on allocation failure 528 * 529 * DESCRIPTION: Implements the C-style '=' operator. It changes the parse 530 * tree if possible to utilize the last argument of the math 531 * operators which is a target operand -- thus saving invocation 532 * of and additional Store() operator. An optimization. 533 * 534 ******************************************************************************/ 535 536 ACPI_PARSE_OBJECT * 537 TrCreateAssignmentOp ( 538 ACPI_PARSE_OBJECT *Target, 539 ACPI_PARSE_OBJECT *Source) 540 { 541 ACPI_PARSE_OBJECT *TargetOp; 542 ACPI_PARSE_OBJECT *SourceOp1; 543 ACPI_PARSE_OBJECT *SourceOp2; 544 ACPI_PARSE_OBJECT *Operator; 545 546 547 DbgPrint (ASL_PARSE_OUTPUT, 548 "\nTrCreateAssignmentOp Line [%u to %u] Source %s Target %s\n", 549 Source->Asl.LineNumber, Source->Asl.EndLine, 550 UtGetOpName (Source->Asl.ParseOpcode), 551 UtGetOpName (Target->Asl.ParseOpcode)); 552 553 TrSetOpFlags (Target, OP_IS_TARGET); 554 555 switch (Source->Asl.ParseOpcode) 556 { 557 /* 558 * Only these operators can be optimized because they have 559 * a target operand 560 */ 561 case PARSEOP_ADD: 562 case PARSEOP_AND: 563 case PARSEOP_DIVIDE: 564 case PARSEOP_INDEX: 565 case PARSEOP_MOD: 566 case PARSEOP_MULTIPLY: 567 case PARSEOP_NOT: 568 case PARSEOP_OR: 569 case PARSEOP_SHIFTLEFT: 570 case PARSEOP_SHIFTRIGHT: 571 case PARSEOP_SUBTRACT: 572 case PARSEOP_XOR: 573 574 break; 575 576 /* Otherwise, just create a normal Store operator */ 577 578 default: 579 goto CannotOptimize; 580 } 581 582 /* 583 * Transform the parse tree such that the target is moved to the 584 * last operand of the operator 585 */ 586 SourceOp1 = Source->Asl.Child; 587 SourceOp2 = SourceOp1->Asl.Next; 588 589 /* NOT only has one operand, but has a target */ 590 591 if (Source->Asl.ParseOpcode == PARSEOP_NOT) 592 { 593 SourceOp2 = SourceOp1; 594 } 595 596 /* DIVIDE has an extra target operand (remainder) */ 597 598 if (Source->Asl.ParseOpcode == PARSEOP_DIVIDE) 599 { 600 SourceOp2 = SourceOp2->Asl.Next; 601 } 602 603 TargetOp = SourceOp2->Asl.Next; 604 605 /* 606 * Can't perform this optimization if there already is a target 607 * for the operator (ZERO is a "no target" placeholder). 608 */ 609 if (TargetOp->Asl.ParseOpcode != PARSEOP_ZERO) 610 { 611 goto CannotOptimize; 612 } 613 614 /* Link in the target as the final operand */ 615 616 SourceOp2->Asl.Next = Target; 617 Target->Asl.Parent = Source; 618 return (Source); 619 620 621 CannotOptimize: 622 623 Operator = TrAllocateOp (PARSEOP_STORE); 624 TrLinkOpChildren (Operator, 2, Source, Target); 625 626 /* Set the appropriate line numbers for the new op */ 627 628 Operator->Asl.LineNumber = Target->Asl.LineNumber; 629 Operator->Asl.LogicalLineNumber = Target->Asl.LogicalLineNumber; 630 Operator->Asl.LogicalByteOffset = Target->Asl.LogicalByteOffset; 631 Operator->Asl.Column = Target->Asl.Column; 632 633 return (Operator); 634 } 635 636 637 /******************************************************************************* 638 * 639 * FUNCTION: TrCreateNullTargetOp 640 * 641 * PARAMETERS: None 642 * 643 * RETURN: Pointer to the new op. Aborts on allocation failure 644 * 645 * DESCRIPTION: Create a "null" target op. This is defined by the ACPI 646 * specification to be a zero AML opcode, and indicates that 647 * no target has been specified for the parent operation 648 * 649 ******************************************************************************/ 650 651 ACPI_PARSE_OBJECT * 652 TrCreateNullTargetOp ( 653 void) 654 { 655 ACPI_PARSE_OBJECT *Op; 656 657 658 Op = TrAllocateOp (PARSEOP_ZERO); 659 Op->Asl.CompileFlags |= (OP_IS_TARGET | OP_COMPILE_TIME_CONST); 660 661 DbgPrint (ASL_PARSE_OUTPUT, 662 "\nCreateNullTargetOp Ln/Col %u/%u NewOp %p Op %s\n", 663 Op->Asl.LineNumber, Op->Asl.Column, Op, 664 UtGetOpName (Op->Asl.ParseOpcode)); 665 666 return (Op); 667 } 668 669 670 /******************************************************************************* 671 * 672 * FUNCTION: TrCreateConstantLeafOp 673 * 674 * PARAMETERS: ParseOpcode - The constant opcode 675 * 676 * RETURN: Pointer to the new op. Aborts on allocation failure 677 * 678 * DESCRIPTION: Create a leaf op (no children or peers) for one of the 679 * special constants - __LINE__, __FILE__, and __DATE__. 680 * 681 * Note: The fullimplemenation of __METHOD__ cannot happen here because we 682 * don't have a full parse tree at this time and cannot find the parent 683 * control method. __METHOD__ must be implemented later, after the parse 684 * tree has been fully constructed. 685 * 686 ******************************************************************************/ 687 688 ACPI_PARSE_OBJECT * 689 TrCreateConstantLeafOp ( 690 UINT32 ParseOpcode) 691 { 692 ACPI_PARSE_OBJECT *Op = NULL; 693 time_t CurrentTime; 694 char *StaticTimeString; 695 char *TimeString; 696 char *Filename; 697 698 699 switch (ParseOpcode) 700 { 701 case PARSEOP___LINE__: 702 703 Op = TrAllocateOp (PARSEOP_INTEGER); 704 Op->Asl.Value.Integer = Op->Asl.LineNumber; 705 break; 706 707 case PARSEOP___METHOD__: 708 709 /* Will become a string literal later */ 710 711 Op = TrAllocateOp (PARSEOP___METHOD__); 712 Op->Asl.Value.String = NULL; 713 break; 714 715 case PARSEOP___PATH__: 716 717 Op = TrAllocateOp (PARSEOP_STRING_LITERAL); 718 719 /* Op.Asl.Filename contains the full pathname to the file */ 720 721 Op->Asl.Value.String = Op->Asl.Filename; 722 break; 723 724 case PARSEOP___FILE__: 725 726 Op = TrAllocateOp (PARSEOP_STRING_LITERAL); 727 728 /* Get the simple filename from the full path */ 729 730 FlSplitInputPathname (Op->Asl.Filename, NULL, &Filename); 731 Op->Asl.Value.String = Filename; 732 break; 733 734 case PARSEOP___DATE__: 735 736 Op = TrAllocateOp (PARSEOP_STRING_LITERAL); 737 738 /* Get a copy of the current time */ 739 740 CurrentTime = time (NULL); 741 StaticTimeString = ctime (&CurrentTime); 742 TimeString = UtLocalCalloc (strlen (StaticTimeString) + 1); 743 strcpy (TimeString, StaticTimeString); 744 745 TimeString[strlen(TimeString) -1] = 0; /* Remove trailing newline */ 746 Op->Asl.Value.String = TimeString; 747 break; 748 749 default: /* This would be an internal error */ 750 751 return (NULL); 752 } 753 754 DbgPrint (ASL_PARSE_OUTPUT, 755 "\nCreateConstantLeafOp Ln/Col %u/%u NewOp %p " 756 "Op %s Value %8.8X%8.8X \n", 757 Op->Asl.LineNumber, Op->Asl.Column, Op, UtGetOpName (ParseOpcode), 758 ACPI_FORMAT_UINT64 (Op->Asl.Value.Integer)); 759 760 return (Op); 761 } 762 763 764 /******************************************************************************* 765 * 766 * FUNCTION: TrAllocateOp 767 * 768 * PARAMETERS: ParseOpcode - Opcode to be assigned to the op 769 * 770 * RETURN: New parse op. Aborts on allocation failure 771 * 772 * DESCRIPTION: Allocate and initialize a new parse op for the parse tree 773 * 774 ******************************************************************************/ 775 776 ACPI_PARSE_OBJECT * 777 TrAllocateOp ( 778 UINT32 ParseOpcode) 779 { 780 ACPI_PARSE_OBJECT *Op; 781 ACPI_PARSE_OBJECT *LatestOp; 782 783 784 Op = UtParseOpCacheCalloc (); 785 786 Op->Asl.ParseOpcode = (UINT16) ParseOpcode; 787 Op->Asl.Filename = Gbl_Files[ASL_FILE_INPUT].Filename; 788 Op->Asl.LineNumber = Gbl_CurrentLineNumber; 789 Op->Asl.LogicalLineNumber = Gbl_LogicalLineNumber; 790 Op->Asl.LogicalByteOffset = Gbl_CurrentLineOffset; 791 Op->Asl.Column = Gbl_CurrentColumn; 792 793 UtSetParseOpName (Op); 794 795 /* The following is for capturing comments */ 796 797 if (AcpiGbl_CaptureComments) 798 { 799 LatestOp = Gbl_CommentState.LatestParseOp; 800 Op->Asl.InlineComment = NULL; 801 Op->Asl.EndNodeComment = NULL; 802 Op->Asl.CommentList = NULL; 803 Op->Asl.FileChanged = FALSE; 804 805 /* 806 * Check to see if the file name has changed before resetting the 807 * latest parse op. 808 */ 809 if (LatestOp && 810 (ParseOpcode != PARSEOP_INCLUDE) && 811 (ParseOpcode != PARSEOP_INCLUDE_END) && 812 strcmp (LatestOp->Asl.Filename, Op->Asl.Filename)) 813 { 814 CvDbgPrint ("latest op: %s\n", LatestOp->Asl.ParseOpName); 815 Op->Asl.FileChanged = TRUE; 816 if (Gbl_IncludeFileStack) 817 { 818 Op->Asl.ParentFilename = Gbl_IncludeFileStack->Filename; 819 } 820 else 821 { 822 Op->Asl.ParentFilename = NULL; 823 } 824 } 825 826 Gbl_CommentState.LatestParseOp = Op; 827 CvDbgPrint ("TrAllocateOp=Set latest parse op to this op.\n"); 828 CvDbgPrint (" Op->Asl.ParseOpName = %s\n", 829 Gbl_CommentState.LatestParseOp->Asl.ParseOpName); 830 CvDbgPrint (" Op->Asl.ParseOpcode = 0x%x\n", ParseOpcode); 831 832 if (Op->Asl.FileChanged) 833 { 834 CvDbgPrint(" file has been changed!\n"); 835 } 836 837 /* 838 * if this parse op's syntax uses () and {} (i.e. Package(1){0x00}) then 839 * set a flag in the comment state. This facilitates paring comments for 840 * these types of opcodes. 841 */ 842 if ((CvParseOpBlockType(Op) == (BLOCK_PAREN | BLOCK_BRACE)) && 843 (ParseOpcode != PARSEOP_DEFINITION_BLOCK)) 844 { 845 CvDbgPrint ("Parsing paren/Brace op now!\n"); 846 Gbl_CommentState.ParsingParenBraceNode = Op; 847 } 848 849 if (Gbl_CommentListHead) 850 { 851 CvDbgPrint ("Transferring...\n"); 852 Op->Asl.CommentList = Gbl_CommentListHead; 853 Gbl_CommentListHead = NULL; 854 Gbl_CommentListTail = NULL; 855 CvDbgPrint (" Transferred current comment list to this op.\n"); 856 CvDbgPrint (" %s\n", Op->Asl.CommentList->Comment); 857 } 858 859 if (Gbl_InlineCommentBuffer) 860 { 861 Op->Asl.InlineComment = Gbl_InlineCommentBuffer; 862 Gbl_InlineCommentBuffer = NULL; 863 CvDbgPrint ("Transferred current inline comment list to this op.\n"); 864 } 865 } 866 867 return (Op); 868 } 869 870 871 /******************************************************************************* 872 * 873 * FUNCTION: TrPrintOpFlags 874 * 875 * PARAMETERS: Flags - Flags word to be decoded 876 * OutputLevel - Debug output level: ASL_TREE_OUTPUT etc. 877 * 878 * RETURN: None 879 * 880 * DESCRIPTION: Decode a flags word to text. Displays all flags that are set. 881 * 882 ******************************************************************************/ 883 884 void 885 TrPrintOpFlags ( 886 UINT32 Flags, 887 UINT32 OutputLevel) 888 { 889 UINT32 FlagBit = 1; 890 UINT32 i; 891 892 893 for (i = 0; i < ACPI_NUM_OP_FLAGS; i++) 894 { 895 if (Flags & FlagBit) 896 { 897 DbgPrint (OutputLevel, " %s", Gbl_OpFlagNames[i]); 898 } 899 900 FlagBit <<= 1; 901 } 902 } 903