1 /******************************************************************************* 2 * 3 * Module Name: dmnames - AML disassembler, names, namestrings, pathnames 4 * $Revision: 1.15 $ 5 * 6 ******************************************************************************/ 7 8 /****************************************************************************** 9 * 10 * 1. Copyright Notice 11 * 12 * Some or all of this work - Copyright (c) 1999 - 2006, Intel Corp. 13 * All rights reserved. 14 * 15 * 2. License 16 * 17 * 2.1. This is your license from Intel Corp. under its intellectual property 18 * rights. You may have additional license terms from the party that provided 19 * you this software, covering your right to use that party's intellectual 20 * property rights. 21 * 22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 23 * copy of the source code appearing in this file ("Covered Code") an 24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 25 * base code distributed originally by Intel ("Original Intel Code") to copy, 26 * make derivatives, distribute, use and display any portion of the Covered 27 * Code in any form, with the right to sublicense such rights; and 28 * 29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 30 * license (with the right to sublicense), under only those claims of Intel 31 * patents that are infringed by the Original Intel Code, to make, use, sell, 32 * offer to sell, and import the Covered Code and derivative works thereof 33 * solely to the minimum extent necessary to exercise the above copyright 34 * license, and in no event shall the patent license extend to any additions 35 * to or modifications of the Original Intel Code. No other license or right 36 * is granted directly or by implication, estoppel or otherwise; 37 * 38 * The above copyright and patent license is granted only if the following 39 * conditions are met: 40 * 41 * 3. Conditions 42 * 43 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 44 * Redistribution of source code of any substantial portion of the Covered 45 * Code or modification with rights to further distribute source must include 46 * the above Copyright Notice, the above License, this list of Conditions, 47 * and the following Disclaimer and Export Compliance provision. In addition, 48 * Licensee must cause all Covered Code to which Licensee contributes to 49 * contain a file documenting the changes Licensee made to create that Covered 50 * Code and the date of any change. Licensee must include in that file the 51 * documentation of any changes made by any predecessor Licensee. Licensee 52 * must include a prominent statement that the modification is derived, 53 * directly or indirectly, from Original Intel Code. 54 * 55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 56 * Redistribution of source code of any substantial portion of the Covered 57 * Code or modification without rights to further distribute source must 58 * include the following Disclaimer and Export Compliance provision in the 59 * documentation and/or other materials provided with distribution. In 60 * addition, Licensee may not authorize further sublicense of source of any 61 * portion of the Covered Code, and must include terms to the effect that the 62 * license from Licensee to its licensee is limited to the intellectual 63 * property embodied in the software Licensee provides to its licensee, and 64 * not to intellectual property embodied in modifications its licensee may 65 * make. 66 * 67 * 3.3. Redistribution of Executable. Redistribution in executable form of any 68 * substantial portion of the Covered Code or modification must reproduce the 69 * above Copyright Notice, and the following Disclaimer and Export Compliance 70 * provision in the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3.4. Intel retains all right, title, and interest in and to the Original 74 * Intel Code. 75 * 76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77 * Intel shall be used in advertising or otherwise to promote the sale, use or 78 * other dealings in products derived from or relating to the Covered Code 79 * without prior written authorization from Intel. 80 * 81 * 4. Disclaimer and Export Compliance 82 * 83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89 * PARTICULAR PURPOSE. 90 * 91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98 * LIMITED REMEDY. 99 * 100 * 4.3. Licensee shall not export, either directly or indirectly, any of this 101 * software or system incorporating such software without first obtaining any 102 * required license or other approval from the U. S. Department of Commerce or 103 * any other agency or department of the United States Government. In the 104 * event Licensee exports any such software from the United States or 105 * re-exports any such software from a foreign destination, Licensee shall 106 * ensure that the distribution and export/re-export of the software is in 107 * compliance with all laws, regulations, orders, or other restrictions of the 108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109 * any of its subsidiaries will export/re-export any technical data, process, 110 * software, or service, directly or indirectly, to any country for which the 111 * United States government or any agency thereof requires an export license, 112 * other governmental approval, or letter of assurance, without first obtaining 113 * such license, approval or letter. 114 * 115 *****************************************************************************/ 116 117 118 #include "acpi.h" 119 #include "acparser.h" 120 #include "amlcode.h" 121 #include "acnamesp.h" 122 #include "acdisasm.h" 123 124 125 #ifdef ACPI_DISASSEMBLER 126 127 #define _COMPONENT ACPI_CA_DEBUGGER 128 ACPI_MODULE_NAME ("dmnames") 129 130 /* Local prototypes */ 131 132 #ifdef ACPI_OBSOLETE_FUNCTIONS 133 void 134 AcpiDmDisplayPath ( 135 ACPI_PARSE_OBJECT *Op); 136 #endif 137 138 139 /******************************************************************************* 140 * 141 * FUNCTION: AcpiDmDumpName 142 * 143 * PARAMETERS: Name - 4 character ACPI name 144 * 145 * RETURN: Final length of name 146 * 147 * DESCRIPTION: Dump an ACPI name, minus any trailing underscores. 148 * 149 ******************************************************************************/ 150 151 UINT32 152 AcpiDmDumpName ( 153 char *Name) 154 { 155 UINT32 i; 156 UINT32 Length; 157 char NewName[4]; 158 159 160 /* Ensure that the name is printable, even if we have to fix it */ 161 162 *(UINT32 *) NewName = AcpiUtRepairName (*(UINT32 *) Name); 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 ******************************************************************************/ 205 206 ACPI_STATUS 207 AcpiPsDisplayObjectPathname ( 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 237 * is not in the namespace. This can happen during single 238 * stepping 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); 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); 261 262 263 Exit: 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 ******************************************************************************/ 282 283 void 284 AcpiDmNamestring ( 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 (AcpiPsIsPrefixChar (ACPI_GET8 (Name))) 298 { 299 /* Append prefix character */ 300 301 AcpiOsPrintf ("%1c", ACPI_GET8 (Name)); 302 Name++; 303 } 304 305 switch (ACPI_GET8 (Name)) 306 { 307 case 0: 308 SegCount = 0; 309 break; 310 311 case AML_DUAL_NAME_PREFIX: 312 SegCount = 2; 313 Name++; 314 break; 315 316 case AML_MULTI_NAME_PREFIX_OP: 317 SegCount = (UINT32) ACPI_GET8 (Name + 1); 318 Name += 2; 319 break; 320 321 default: 322 SegCount = 1; 323 break; 324 } 325 326 while (SegCount) 327 { 328 /* Append Name segment */ 329 330 AcpiDmDumpName ((char *) Name); 331 332 SegCount--; 333 if (SegCount) 334 { 335 /* Not last name, append dot separator */ 336 337 AcpiOsPrintf ("."); 338 } 339 Name += ACPI_NAME_SIZE; 340 } 341 } 342 343 344 #ifdef ACPI_OBSOLETE_FUNCTIONS 345 /******************************************************************************* 346 * 347 * FUNCTION: AcpiDmDisplayPath 348 * 349 * PARAMETERS: Op - Named Op whose path is to be constructed 350 * 351 * RETURN: None 352 * 353 * DESCRIPTION: Walk backwards from current scope and display the name 354 * of each previous level of scope up to the root scope 355 * (like "pwd" does with file systems) 356 * 357 ******************************************************************************/ 358 359 void 360 AcpiDmDisplayPath ( 361 ACPI_PARSE_OBJECT *Op) 362 { 363 ACPI_PARSE_OBJECT *Prev; 364 ACPI_PARSE_OBJECT *Search; 365 UINT32 Name; 366 BOOLEAN DoDot = FALSE; 367 ACPI_PARSE_OBJECT *NamePath; 368 const ACPI_OPCODE_INFO *OpInfo; 369 370 371 /* We are only interested in named objects */ 372 373 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 374 if (!(OpInfo->Flags & AML_NSNODE)) 375 { 376 return; 377 } 378 379 if (OpInfo->Flags & AML_CREATE) 380 { 381 /* Field creation - check for a fully qualified namepath */ 382 383 if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP) 384 { 385 NamePath = AcpiPsGetArg (Op, 3); 386 } 387 else 388 { 389 NamePath = AcpiPsGetArg (Op, 2); 390 } 391 392 if ((NamePath) && 393 (NamePath->Common.Value.String) && 394 (NamePath->Common.Value.String[0] == '\\')) 395 { 396 AcpiDmNamestring (NamePath->Common.Value.String); 397 return; 398 } 399 } 400 401 Prev = NULL; /* Start with Root Node */ 402 403 while (Prev != Op) 404 { 405 /* Search upwards in the tree to find scope with "prev" as its parent */ 406 407 Search = Op; 408 for (; ;) 409 { 410 if (Search->Common.Parent == Prev) 411 { 412 break; 413 } 414 415 /* Go up one level */ 416 417 Search = Search->Common.Parent; 418 } 419 420 if (Prev) 421 { 422 OpInfo = AcpiPsGetOpcodeInfo (Search->Common.AmlOpcode); 423 if (!(OpInfo->Flags & AML_FIELD)) 424 { 425 /* Below root scope, append scope name */ 426 427 if (DoDot) 428 { 429 /* Append dot */ 430 431 AcpiOsPrintf ("."); 432 } 433 434 if (OpInfo->Flags & AML_CREATE) 435 { 436 if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP) 437 { 438 NamePath = AcpiPsGetArg (Op, 3); 439 } 440 else 441 { 442 NamePath = AcpiPsGetArg (Op, 2); 443 } 444 445 if ((NamePath) && 446 (NamePath->Common.Value.String)) 447 { 448 AcpiDmDumpName (NamePath->Common.Value.String); 449 } 450 } 451 else 452 { 453 Name = AcpiPsGetName (Search); 454 AcpiDmDumpName ((char *) &Name); 455 } 456 457 DoDot = TRUE; 458 } 459 } 460 Prev = Search; 461 } 462 } 463 464 465 /******************************************************************************* 466 * 467 * FUNCTION: AcpiDmValidateName 468 * 469 * PARAMETERS: Name - 4 character ACPI name 470 * 471 * RETURN: None 472 * 473 * DESCRIPTION: Lookup the name 474 * 475 ******************************************************************************/ 476 477 void 478 AcpiDmValidateName ( 479 char *Name, 480 ACPI_PARSE_OBJECT *Op) 481 { 482 483 if ((!Name) || 484 (!Op->Common.Parent)) 485 { 486 return; 487 } 488 489 if (!Op->Common.Node) 490 { 491 AcpiOsPrintf ( 492 " /**** Name not found or not accessible from this scope ****/ "); 493 } 494 495 ACPI_PARSE_OBJECT *TargetOp; 496 497 498 if ((!Name) || 499 (!Op->Common.Parent)) 500 { 501 return; 502 } 503 504 TargetOp = AcpiPsFind (Op, Name, 0, 0); 505 if (!TargetOp) 506 { 507 /* 508 * Didn't find the name in the parse tree. This may be 509 * a problem, or it may simply be one of the predefined names 510 * (such as _OS_). Rather than worry about looking up all 511 * the predefined names, just display the name as given 512 */ 513 AcpiOsPrintf ( 514 " /**** Name not found or not accessible from this scope ****/ "); 515 } 516 } 517 #endif 518 519 #endif 520 521 522