1 /****************************************************************************** 2 * 3 * Module Name: extrace - Support for interpreter execution tracing 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 "acpi.h" 153 #include "accommon.h" 154 #include "acnamesp.h" 155 #include "acinterp.h" 156 157 158 #define _COMPONENT ACPI_EXECUTER 159 ACPI_MODULE_NAME ("extrace") 160 161 162 static ACPI_OPERAND_OBJECT *AcpiGbl_TraceMethodObject = NULL; 163 164 /* Local prototypes */ 165 166 #ifdef ACPI_DEBUG_OUTPUT 167 static const char * 168 AcpiExGetTraceEventName ( 169 ACPI_TRACE_EVENT_TYPE Type); 170 #endif 171 172 173 /******************************************************************************* 174 * 175 * FUNCTION: AcpiExInterpreterTraceEnabled 176 * 177 * PARAMETERS: Name - Whether method name should be matched, 178 * this should be checked before starting 179 * the tracer 180 * 181 * RETURN: TRUE if interpreter trace is enabled. 182 * 183 * DESCRIPTION: Check whether interpreter trace is enabled 184 * 185 ******************************************************************************/ 186 187 static BOOLEAN 188 AcpiExInterpreterTraceEnabled ( 189 char *Name) 190 { 191 192 /* Check if tracing is enabled */ 193 194 if (!(AcpiGbl_TraceFlags & ACPI_TRACE_ENABLED)) 195 { 196 return (FALSE); 197 } 198 199 /* 200 * Check if tracing is filtered: 201 * 202 * 1. If the tracer is started, AcpiGbl_TraceMethodObject should have 203 * been filled by the trace starter 204 * 2. If the tracer is not started, AcpiGbl_TraceMethodName should be 205 * matched if it is specified 206 * 3. If the tracer is oneshot style, AcpiGbl_TraceMethodName should 207 * not be cleared by the trace stopper during the first match 208 */ 209 if (AcpiGbl_TraceMethodObject) 210 { 211 return (TRUE); 212 } 213 214 if (Name && 215 (AcpiGbl_TraceMethodName && 216 strcmp (AcpiGbl_TraceMethodName, Name))) 217 { 218 return (FALSE); 219 } 220 221 if ((AcpiGbl_TraceFlags & ACPI_TRACE_ONESHOT) && 222 !AcpiGbl_TraceMethodName) 223 { 224 return (FALSE); 225 } 226 227 return (TRUE); 228 } 229 230 231 /******************************************************************************* 232 * 233 * FUNCTION: AcpiExGetTraceEventName 234 * 235 * PARAMETERS: Type - Trace event type 236 * 237 * RETURN: Trace event name. 238 * 239 * DESCRIPTION: Used to obtain the full trace event name. 240 * 241 ******************************************************************************/ 242 243 #ifdef ACPI_DEBUG_OUTPUT 244 245 static const char * 246 AcpiExGetTraceEventName ( 247 ACPI_TRACE_EVENT_TYPE Type) 248 { 249 250 switch (Type) 251 { 252 case ACPI_TRACE_AML_METHOD: 253 254 return "Method"; 255 256 case ACPI_TRACE_AML_OPCODE: 257 258 return "Opcode"; 259 260 case ACPI_TRACE_AML_REGION: 261 262 return "Region"; 263 264 default: 265 266 return ""; 267 } 268 } 269 270 #endif 271 272 273 /******************************************************************************* 274 * 275 * FUNCTION: AcpiExTracePoint 276 * 277 * PARAMETERS: Type - Trace event type 278 * Begin - TRUE if before execution 279 * Aml - Executed AML address 280 * Pathname - Object path 281 * 282 * RETURN: None 283 * 284 * DESCRIPTION: Internal interpreter execution trace. 285 * 286 ******************************************************************************/ 287 288 void 289 AcpiExTracePoint ( 290 ACPI_TRACE_EVENT_TYPE Type, 291 BOOLEAN Begin, 292 UINT8 *Aml, 293 char *Pathname) 294 { 295 296 ACPI_FUNCTION_NAME (ExTracePoint); 297 298 299 if (Pathname) 300 { 301 ACPI_DEBUG_PRINT ((ACPI_DB_TRACE_POINT, 302 "%s %s [0x%p:%s] execution.\n", 303 AcpiExGetTraceEventName (Type), Begin ? "Begin" : "End", 304 Aml, Pathname)); 305 } 306 else 307 { 308 ACPI_DEBUG_PRINT ((ACPI_DB_TRACE_POINT, 309 "%s %s [0x%p] execution.\n", 310 AcpiExGetTraceEventName (Type), Begin ? "Begin" : "End", 311 Aml)); 312 } 313 } 314 315 316 /******************************************************************************* 317 * 318 * FUNCTION: AcpiExStartTraceMethod 319 * 320 * PARAMETERS: MethodNode - Node of the method 321 * ObjDesc - The method object 322 * WalkState - current state, NULL if not yet executing 323 * a method. 324 * 325 * RETURN: None 326 * 327 * DESCRIPTION: Start control method execution trace 328 * 329 ******************************************************************************/ 330 331 void 332 AcpiExStartTraceMethod ( 333 ACPI_NAMESPACE_NODE *MethodNode, 334 ACPI_OPERAND_OBJECT *ObjDesc, 335 ACPI_WALK_STATE *WalkState) 336 { 337 char *Pathname = NULL; 338 BOOLEAN Enabled = FALSE; 339 340 341 ACPI_FUNCTION_NAME (ExStartTraceMethod); 342 343 344 if (MethodNode) 345 { 346 Pathname = AcpiNsGetNormalizedPathname (MethodNode, TRUE); 347 } 348 349 Enabled = AcpiExInterpreterTraceEnabled (Pathname); 350 if (Enabled && !AcpiGbl_TraceMethodObject) 351 { 352 AcpiGbl_TraceMethodObject = ObjDesc; 353 AcpiGbl_OriginalDbgLevel = AcpiDbgLevel; 354 AcpiGbl_OriginalDbgLayer = AcpiDbgLayer; 355 AcpiDbgLevel = ACPI_TRACE_LEVEL_ALL; 356 AcpiDbgLayer = ACPI_TRACE_LAYER_ALL; 357 358 if (AcpiGbl_TraceDbgLevel) 359 { 360 AcpiDbgLevel = AcpiGbl_TraceDbgLevel; 361 } 362 363 if (AcpiGbl_TraceDbgLayer) 364 { 365 AcpiDbgLayer = AcpiGbl_TraceDbgLayer; 366 } 367 } 368 369 if (Enabled) 370 { 371 ACPI_TRACE_POINT (ACPI_TRACE_AML_METHOD, TRUE, 372 ObjDesc ? ObjDesc->Method.AmlStart : NULL, Pathname); 373 } 374 375 if (Pathname) 376 { 377 ACPI_FREE (Pathname); 378 } 379 } 380 381 382 /******************************************************************************* 383 * 384 * FUNCTION: AcpiExStopTraceMethod 385 * 386 * PARAMETERS: MethodNode - Node of the method 387 * ObjDesc - The method object 388 * WalkState - current state, NULL if not yet executing 389 * a method. 390 * 391 * RETURN: None 392 * 393 * DESCRIPTION: Stop control method execution trace 394 * 395 ******************************************************************************/ 396 397 void 398 AcpiExStopTraceMethod ( 399 ACPI_NAMESPACE_NODE *MethodNode, 400 ACPI_OPERAND_OBJECT *ObjDesc, 401 ACPI_WALK_STATE *WalkState) 402 { 403 char *Pathname = NULL; 404 BOOLEAN Enabled; 405 406 407 ACPI_FUNCTION_NAME (ExStopTraceMethod); 408 409 410 if (MethodNode) 411 { 412 Pathname = AcpiNsGetNormalizedPathname (MethodNode, TRUE); 413 } 414 415 Enabled = AcpiExInterpreterTraceEnabled (NULL); 416 417 if (Enabled) 418 { 419 ACPI_TRACE_POINT (ACPI_TRACE_AML_METHOD, FALSE, 420 ObjDesc ? ObjDesc->Method.AmlStart : NULL, Pathname); 421 } 422 423 /* Check whether the tracer should be stopped */ 424 425 if (AcpiGbl_TraceMethodObject == ObjDesc) 426 { 427 /* Disable further tracing if type is one-shot */ 428 429 if (AcpiGbl_TraceFlags & ACPI_TRACE_ONESHOT) 430 { 431 AcpiGbl_TraceMethodName = NULL; 432 } 433 434 AcpiDbgLevel = AcpiGbl_OriginalDbgLevel; 435 AcpiDbgLayer = AcpiGbl_OriginalDbgLayer; 436 AcpiGbl_TraceMethodObject = NULL; 437 } 438 439 if (Pathname) 440 { 441 ACPI_FREE (Pathname); 442 } 443 } 444 445 446 /******************************************************************************* 447 * 448 * FUNCTION: AcpiExStartTraceOpcode 449 * 450 * PARAMETERS: Op - The parser opcode object 451 * WalkState - current state, NULL if not yet executing 452 * a method. 453 * 454 * RETURN: None 455 * 456 * DESCRIPTION: Start opcode execution trace 457 * 458 ******************************************************************************/ 459 460 void 461 AcpiExStartTraceOpcode ( 462 ACPI_PARSE_OBJECT *Op, 463 ACPI_WALK_STATE *WalkState) 464 { 465 466 ACPI_FUNCTION_NAME (ExStartTraceOpcode); 467 468 469 if (AcpiExInterpreterTraceEnabled (NULL) && 470 (AcpiGbl_TraceFlags & ACPI_TRACE_OPCODE)) 471 { 472 ACPI_TRACE_POINT (ACPI_TRACE_AML_OPCODE, TRUE, 473 Op->Common.Aml, Op->Common.AmlOpName); 474 } 475 } 476 477 478 /******************************************************************************* 479 * 480 * FUNCTION: AcpiExStopTraceOpcode 481 * 482 * PARAMETERS: Op - The parser opcode object 483 * WalkState - current state, NULL if not yet executing 484 * a method. 485 * 486 * RETURN: None 487 * 488 * DESCRIPTION: Stop opcode execution trace 489 * 490 ******************************************************************************/ 491 492 void 493 AcpiExStopTraceOpcode ( 494 ACPI_PARSE_OBJECT *Op, 495 ACPI_WALK_STATE *WalkState) 496 { 497 498 ACPI_FUNCTION_NAME (ExStopTraceOpcode); 499 500 501 if (AcpiExInterpreterTraceEnabled (NULL) && 502 (AcpiGbl_TraceFlags & ACPI_TRACE_OPCODE)) 503 { 504 ACPI_TRACE_POINT (ACPI_TRACE_AML_OPCODE, FALSE, 505 Op->Common.Aml, Op->Common.AmlOpName); 506 } 507 } 508