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 - 2009, 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 *****************************************************************************/ 115 116 117 #include "acpi.h" 118 #include "accommon.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 UINT32 Name) 154 { 155 UINT32 i; 156 UINT32 Length; 157 char NewName[4]; 158 159 160 /* Copy name locally in case the original name is not writeable */ 161 162 *ACPI_CAST_PTR (UINT32, &NewName[0]) = Name; 163 164 /* Ensure that the name is printable, even if we have to fix it */ 165 166 AcpiUtRepairName (NewName); 167 168 /* Remove all trailing underscores from the name */ 169 170 Length = ACPI_NAME_SIZE; 171 for (i = (ACPI_NAME_SIZE - 1); i != 0; i--) 172 { 173 if (NewName[i] == '_') 174 { 175 Length--; 176 } 177 else 178 { 179 break; 180 } 181 } 182 183 /* Dump the name, up to the start of the trailing underscores */ 184 185 for (i = 0; i < Length; i++) 186 { 187 AcpiOsPrintf ("%c", NewName[i]); 188 } 189 190 return (Length); 191 } 192 193 194 /******************************************************************************* 195 * 196 * FUNCTION: AcpiPsDisplayObjectPathname 197 * 198 * PARAMETERS: WalkState - Current walk state 199 * Op - Object whose pathname is to be obtained 200 * 201 * RETURN: Status 202 * 203 * DESCRIPTION: Diplay the pathname associated with a named object. Two 204 * versions. One searches the parse tree (for parser-only 205 * applications suchas AcpiDump), and the other searches the 206 * ACPI namespace (the parse tree is probably deleted) 207 * 208 ******************************************************************************/ 209 210 ACPI_STATUS 211 AcpiPsDisplayObjectPathname ( 212 ACPI_WALK_STATE *WalkState, 213 ACPI_PARSE_OBJECT *Op) 214 { 215 ACPI_STATUS Status; 216 ACPI_NAMESPACE_NODE *Node; 217 ACPI_BUFFER Buffer; 218 UINT32 DebugLevel; 219 220 221 /* Save current debug level so we don't get extraneous debug output */ 222 223 DebugLevel = AcpiDbgLevel; 224 AcpiDbgLevel = 0; 225 226 /* Just get the Node out of the Op object */ 227 228 Node = Op->Common.Node; 229 if (!Node) 230 { 231 /* Node not defined in this scope, look it up */ 232 233 Status = AcpiNsLookup (WalkState->ScopeInfo, Op->Common.Value.String, 234 ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, 235 WalkState, &(Node)); 236 237 if (ACPI_FAILURE (Status)) 238 { 239 /* 240 * We can't get the pathname since the object 241 * is not in the namespace. This can happen during single 242 * stepping where a dynamic named object is *about* to be created. 243 */ 244 AcpiOsPrintf (" [Path not found]"); 245 goto Exit; 246 } 247 248 /* Save it for next time. */ 249 250 Op->Common.Node = Node; 251 } 252 253 /* Convert NamedDesc/handle to a full pathname */ 254 255 Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER; 256 Status = AcpiNsHandleToPathname (Node, &Buffer); 257 if (ACPI_FAILURE (Status)) 258 { 259 AcpiOsPrintf ("****Could not get pathname****)"); 260 goto Exit; 261 } 262 263 AcpiOsPrintf (" (Path %s)", (char *) Buffer.Pointer); 264 ACPI_FREE (Buffer.Pointer); 265 266 267 Exit: 268 /* Restore the debug level */ 269 270 AcpiDbgLevel = DebugLevel; 271 return (Status); 272 } 273 274 275 /******************************************************************************* 276 * 277 * FUNCTION: AcpiDmNamestring 278 * 279 * PARAMETERS: Name - ACPI Name string to store 280 * 281 * RETURN: None 282 * 283 * DESCRIPTION: Decode and dump an ACPI namestring. Handles prefix characters 284 * 285 ******************************************************************************/ 286 287 void 288 AcpiDmNamestring ( 289 char *Name) 290 { 291 UINT32 SegCount; 292 293 294 if (!Name) 295 { 296 return; 297 } 298 299 /* Handle all Scope Prefix operators */ 300 301 while (AcpiPsIsPrefixChar (ACPI_GET8 (Name))) 302 { 303 /* Append prefix character */ 304 305 AcpiOsPrintf ("%1c", ACPI_GET8 (Name)); 306 Name++; 307 } 308 309 switch (ACPI_GET8 (Name)) 310 { 311 case 0: 312 SegCount = 0; 313 break; 314 315 case AML_DUAL_NAME_PREFIX: 316 SegCount = 2; 317 Name++; 318 break; 319 320 case AML_MULTI_NAME_PREFIX_OP: 321 SegCount = (UINT32) ACPI_GET8 (Name + 1); 322 Name += 2; 323 break; 324 325 default: 326 SegCount = 1; 327 break; 328 } 329 330 while (SegCount) 331 { 332 /* Append Name segment */ 333 334 AcpiDmDumpName (*ACPI_CAST_PTR (UINT32, Name)); 335 336 SegCount--; 337 if (SegCount) 338 { 339 /* Not last name, append dot separator */ 340 341 AcpiOsPrintf ("."); 342 } 343 Name += ACPI_NAME_SIZE; 344 } 345 } 346 347 348 #ifdef ACPI_OBSOLETE_FUNCTIONS 349 /******************************************************************************* 350 * 351 * FUNCTION: AcpiDmDisplayPath 352 * 353 * PARAMETERS: Op - Named Op whose path is to be constructed 354 * 355 * RETURN: None 356 * 357 * DESCRIPTION: Walk backwards from current scope and display the name 358 * of each previous level of scope up to the root scope 359 * (like "pwd" does with file systems) 360 * 361 ******************************************************************************/ 362 363 void 364 AcpiDmDisplayPath ( 365 ACPI_PARSE_OBJECT *Op) 366 { 367 ACPI_PARSE_OBJECT *Prev; 368 ACPI_PARSE_OBJECT *Search; 369 UINT32 Name; 370 BOOLEAN DoDot = FALSE; 371 ACPI_PARSE_OBJECT *NamePath; 372 const ACPI_OPCODE_INFO *OpInfo; 373 374 375 /* We are only interested in named objects */ 376 377 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 378 if (!(OpInfo->Flags & AML_NSNODE)) 379 { 380 return; 381 } 382 383 if (OpInfo->Flags & AML_CREATE) 384 { 385 /* Field creation - check for a fully qualified namepath */ 386 387 if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP) 388 { 389 NamePath = AcpiPsGetArg (Op, 3); 390 } 391 else 392 { 393 NamePath = AcpiPsGetArg (Op, 2); 394 } 395 396 if ((NamePath) && 397 (NamePath->Common.Value.String) && 398 (NamePath->Common.Value.String[0] == '\\')) 399 { 400 AcpiDmNamestring (NamePath->Common.Value.String); 401 return; 402 } 403 } 404 405 Prev = NULL; /* Start with Root Node */ 406 407 while (Prev != Op) 408 { 409 /* Search upwards in the tree to find scope with "prev" as its parent */ 410 411 Search = Op; 412 for (; ;) 413 { 414 if (Search->Common.Parent == Prev) 415 { 416 break; 417 } 418 419 /* Go up one level */ 420 421 Search = Search->Common.Parent; 422 } 423 424 if (Prev) 425 { 426 OpInfo = AcpiPsGetOpcodeInfo (Search->Common.AmlOpcode); 427 if (!(OpInfo->Flags & AML_FIELD)) 428 { 429 /* Below root scope, append scope name */ 430 431 if (DoDot) 432 { 433 /* Append dot */ 434 435 AcpiOsPrintf ("."); 436 } 437 438 if (OpInfo->Flags & AML_CREATE) 439 { 440 if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP) 441 { 442 NamePath = AcpiPsGetArg (Op, 3); 443 } 444 else 445 { 446 NamePath = AcpiPsGetArg (Op, 2); 447 } 448 449 if ((NamePath) && 450 (NamePath->Common.Value.String)) 451 { 452 AcpiDmDumpName (NamePath->Common.Value.String); 453 } 454 } 455 else 456 { 457 Name = AcpiPsGetName (Search); 458 AcpiDmDumpName ((char *) &Name); 459 } 460 461 DoDot = TRUE; 462 } 463 } 464 Prev = Search; 465 } 466 } 467 468 469 /******************************************************************************* 470 * 471 * FUNCTION: AcpiDmValidateName 472 * 473 * PARAMETERS: Name - 4 character ACPI name 474 * 475 * RETURN: None 476 * 477 * DESCRIPTION: Lookup the name 478 * 479 ******************************************************************************/ 480 481 void 482 AcpiDmValidateName ( 483 char *Name, 484 ACPI_PARSE_OBJECT *Op) 485 { 486 487 if ((!Name) || 488 (!Op->Common.Parent)) 489 { 490 return; 491 } 492 493 if (!Op->Common.Node) 494 { 495 AcpiOsPrintf ( 496 " /**** Name not found or not accessible from this scope ****/ "); 497 } 498 499 ACPI_PARSE_OBJECT *TargetOp; 500 501 502 if ((!Name) || 503 (!Op->Common.Parent)) 504 { 505 return; 506 } 507 508 TargetOp = AcpiPsFind (Op, Name, 0, 0); 509 if (!TargetOp) 510 { 511 /* 512 * Didn't find the name in the parse tree. This may be 513 * a problem, or it may simply be one of the predefined names 514 * (such as _OS_). Rather than worry about looking up all 515 * the predefined names, just display the name as given 516 */ 517 AcpiOsPrintf ( 518 " /**** Name not found or not accessible from this scope ****/ "); 519 } 520 } 521 #endif 522 523 #endif 524 525 526