1/******************************************************************************* 2 * 3 * Module Name: dmnames - AML disassembler, names, namestrings, pathnames 4 * 5 ******************************************************************************/ 6 7/****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2016, 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#include "acpi.h" 117#include "accommon.h" 118#include "amlcode.h" 119#include "acnamesp.h" 120#include "acdisasm.h" 121 122 123#define _COMPONENT ACPI_CA_DEBUGGER 124 ACPI_MODULE_NAME ("dmnames") 125 126/* Local prototypes */ 127 128#ifdef ACPI_OBSOLETE_FUNCTIONS 129void 130AcpiDmDisplayPath ( 131 ACPI_PARSE_OBJECT *Op); 132#endif 133 134 135/******************************************************************************* 136 * 137 * FUNCTION: AcpiDmDumpName 138 * 139 * PARAMETERS: Name - 4 character ACPI name 140 * 141 * RETURN: Final length of name 142 * 143 * DESCRIPTION: Dump an ACPI name, minus any trailing underscores. 144 * 145 ******************************************************************************/ 146 147UINT32 148AcpiDmDumpName ( 149 UINT32 Name) 150{ 151 UINT32 i; 152 UINT32 Length; 153 char NewName[4]; 154 155 156 /* Copy name locally in case the original name is not writeable */ 157 158 *ACPI_CAST_PTR (UINT32, &NewName[0]) = Name; 159 160 /* Ensure that the name is printable, even if we have to fix it */ 161 162 AcpiUtRepairName (NewName); 163 164 /* Remove all trailing underscores from the name */ 165 166 Length = ACPI_NAME_SIZE; 167 for (i = (ACPI_NAME_SIZE - 1); i != 0; i--) 168 { 169 if (NewName[i] == '_') 170 { 171 Length--; 172 } 173 else 174 { 175 break; 176 } 177 } 178 179 /* Dump the name, up to the start of the trailing underscores */ 180 181 for (i = 0; i < Length; i++) 182 { 183 AcpiOsPrintf ("%c", NewName[i]); 184 } 185 186 return (Length); 187} 188 189 190/******************************************************************************* 191 * 192 * FUNCTION: AcpiPsDisplayObjectPathname 193 * 194 * PARAMETERS: WalkState - Current walk state 195 * Op - Object whose pathname is to be obtained 196 * 197 * RETURN: Status 198 * 199 * DESCRIPTION: Diplay the pathname associated with a named object. Two 200 * versions. One searches the parse tree (for parser-only 201 * applications suchas AcpiDump), and the other searches the 202 * ACPI namespace (the parse tree is probably deleted) 203 * 204 ******************************************************************************/ 205 206ACPI_STATUS 207AcpiPsDisplayObjectPathname ( 208 ACPI_WALK_STATE *WalkState, 209 ACPI_PARSE_OBJECT *Op) 210{ 211 ACPI_STATUS Status; 212 ACPI_NAMESPACE_NODE *Node; 213 ACPI_BUFFER Buffer; 214 UINT32 DebugLevel; 215 216 217 /* Save current debug level so we don't get extraneous debug output */ 218 219 DebugLevel = AcpiDbgLevel; 220 AcpiDbgLevel = 0; 221 222 /* Just get the Node out of the Op object */ 223 224 Node = Op->Common.Node; 225 if (!Node) 226 { 227 /* Node not defined in this scope, look it up */ 228 229 Status = AcpiNsLookup (WalkState->ScopeInfo, Op->Common.Value.String, 230 ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, 231 WalkState, &(Node)); 232 233 if (ACPI_FAILURE (Status)) 234 { 235 /* 236 * We can't get the pathname since the object is not in the 237 * namespace. This can happen during single stepping 238 * where a dynamic named object is *about* to be created. 239 */ 240 AcpiOsPrintf (" [Path not found]"); 241 goto Exit; 242 } 243 244 /* Save it for next time. */ 245 246 Op->Common.Node = Node; 247 } 248 249 /* Convert NamedDesc/handle to a full pathname */ 250 251 Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER; 252 Status = AcpiNsHandleToPathname (Node, &Buffer, FALSE); 253 if (ACPI_FAILURE (Status)) 254 { 255 AcpiOsPrintf ("****Could not get pathname****)"); 256 goto Exit; 257 } 258 259 AcpiOsPrintf (" (Path %s)", (char *) Buffer.Pointer); 260 ACPI_FREE (Buffer.Pointer); 261 262 263Exit: 264 /* Restore the debug level */ 265 266 AcpiDbgLevel = DebugLevel; 267 return (Status); 268} 269 270 271/******************************************************************************* 272 * 273 * FUNCTION: AcpiDmNamestring 274 * 275 * PARAMETERS: Name - ACPI Name string to store 276 * 277 * RETURN: None 278 * 279 * DESCRIPTION: Decode and dump an ACPI namestring. Handles prefix characters 280 * 281 ******************************************************************************/ 282 283void 284AcpiDmNamestring ( 285 char *Name) 286{ 287 UINT32 SegCount; 288 289 290 if (!Name) 291 { 292 return; 293 } 294 295 /* Handle all Scope Prefix operators */ 296 297 while (ACPI_IS_ROOT_PREFIX (ACPI_GET8 (Name)) || 298 ACPI_IS_PARENT_PREFIX (ACPI_GET8 (Name))) 299 { 300 /* Append prefix character */ 301 302 AcpiOsPrintf ("%1c", ACPI_GET8 (Name)); 303 Name++; 304 } 305 306 switch (ACPI_GET8 (Name)) 307 { 308 case 0: 309 310 SegCount = 0; 311 break; 312 313 case AML_DUAL_NAME_PREFIX: 314 315 SegCount = 2; 316 Name++; 317 break; 318 319 case AML_MULTI_NAME_PREFIX_OP: 320 321 SegCount = (UINT32) ACPI_GET8 (Name + 1); 322 Name += 2; 323 break; 324 325 default: 326 327 SegCount = 1; 328 break; 329 } 330 331 while (SegCount) 332 { 333 /* Append Name segment */ 334 335 AcpiDmDumpName (*ACPI_CAST_PTR (UINT32, Name)); 336 337 SegCount--; 338 if (SegCount) 339 { 340 /* Not last name, append dot separator */ 341 342 AcpiOsPrintf ("."); 343 } 344 345 Name += ACPI_NAME_SIZE; 346 } 347} 348 349 350#ifdef ACPI_OBSOLETE_FUNCTIONS 351/******************************************************************************* 352 * 353 * FUNCTION: AcpiDmDisplayPath 354 * 355 * PARAMETERS: Op - Named Op whose path is to be constructed 356 * 357 * RETURN: None 358 * 359 * DESCRIPTION: Walk backwards from current scope and display the name 360 * of each previous level of scope up to the root scope 361 * (like "pwd" does with file systems) 362 * 363 ******************************************************************************/ 364 365void 366AcpiDmDisplayPath ( 367 ACPI_PARSE_OBJECT *Op) 368{ 369 ACPI_PARSE_OBJECT *Prev; 370 ACPI_PARSE_OBJECT *Search; 371 UINT32 Name; 372 BOOLEAN DoDot = FALSE; 373 ACPI_PARSE_OBJECT *NamePath; 374 const ACPI_OPCODE_INFO *OpInfo; 375 376 377 /* We are only interested in named objects */ 378 379 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 380 if (!(OpInfo->Flags & AML_NSNODE)) 381 { 382 return; 383 } 384 385 if (OpInfo->Flags & AML_CREATE) 386 { 387 /* Field creation - check for a fully qualified namepath */ 388 389 if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP) 390 { 391 NamePath = AcpiPsGetArg (Op, 3); 392 } 393 else 394 { 395 NamePath = AcpiPsGetArg (Op, 2); 396 } 397 398 if ((NamePath) && 399 (NamePath->Common.Value.String) && 400 (ACPI_IS_ROOT_PREFIX (NamePath->Common.Value.String[0]))) 401 { 402 AcpiDmNamestring (NamePath->Common.Value.String); 403 return; 404 } 405 } 406 407 Prev = NULL; /* Start with Root Node */ 408 while (Prev != Op) 409 { 410 /* Search upwards in the tree to find scope with "prev" as its parent */ 411 412 Search = Op; 413 for (; ;) 414 { 415 if (Search->Common.Parent == Prev) 416 { 417 break; 418 } 419 420 /* Go up one level */ 421 422 Search = Search->Common.Parent; 423 } 424 425 if (Prev) 426 { 427 OpInfo = AcpiPsGetOpcodeInfo (Search->Common.AmlOpcode); 428 if (!(OpInfo->Flags & AML_FIELD)) 429 { 430 /* Below root scope, append scope name */ 431 432 if (DoDot) 433 { 434 /* Append dot */ 435 436 AcpiOsPrintf ("."); 437 } 438 439 if (OpInfo->Flags & AML_CREATE) 440 { 441 if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP) 442 { 443 NamePath = AcpiPsGetArg (Op, 3); 444 } 445 else 446 { 447 NamePath = AcpiPsGetArg (Op, 2); 448 } 449 450 if ((NamePath) && 451 (NamePath->Common.Value.String)) 452 { 453 AcpiDmDumpName (NamePath->Common.Value.String); 454 } 455 } 456 else 457 { 458 Name = AcpiPsGetName (Search); 459 AcpiDmDumpName ((char *) &Name); 460 } 461 462 DoDot = TRUE; 463 } 464 } 465 466 Prev = Search; 467 } 468} 469 470 471/******************************************************************************* 472 * 473 * FUNCTION: AcpiDmValidateName 474 * 475 * PARAMETERS: Name - 4 character ACPI name 476 * 477 * RETURN: None 478 * 479 * DESCRIPTION: Lookup the name 480 * 481 ******************************************************************************/ 482 483void 484AcpiDmValidateName ( 485 char *Name, 486 ACPI_PARSE_OBJECT *Op) 487{ 488 ACPI_PARSE_OBJECT *TargetOp; 489 490 491 if ((!Name) || 492 (!Op->Common.Parent)) 493 { 494 return; 495 } 496 497 if (!Op->Common.Node) 498 { 499 AcpiOsPrintf ( 500 " /**** Name not found or not accessible from this scope ****/ "); 501 } 502 503 if ((!Name) || 504 (!Op->Common.Parent)) 505 { 506 return; 507 } 508 509 TargetOp = AcpiPsFind (Op, Name, 0, 0); 510 if (!TargetOp) 511 { 512 /* 513 * Didn't find the name in the parse tree. This may be 514 * a problem, or it may simply be one of the predefined names 515 * (such as _OS_). Rather than worry about looking up all 516 * the predefined names, just display the name as given 517 */ 518 AcpiOsPrintf ( 519 " /**** Name not found or not accessible from this scope ****/ "); 520 } 521} 522#endif 523