1 /*******************************************************************************
3 * Module Name: dbxface - AML Debugger external interfaces
6 ******************************************************************************/
8 /******************************************************************************
12 * Some or all of this work - Copyright (c) 1999 - 2006, Intel Corp.
13 * All rights reserved.
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
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
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;
38 * The above copyright and patent license is granted only if the following
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.
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
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
73 * 3.4. Intel retains all right, title, and interest in and to the Original
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.
81 * 4. Disclaimer and Export Compliance
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
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
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.
115 *****************************************************************************/
121 #include "acdisasm.h"
126 #define _COMPONENT ACPI_CA_DEBUGGER
127 ACPI_MODULE_NAME ("dbxface")
130 /* Local prototypes */
134 ACPI_WALK_STATE *WalkState,
135 ACPI_PARSE_OBJECT *Op);
137 #ifdef ACPI_OBSOLETE_FUNCTIONS
140 ACPI_WALK_STATE *WalkState);
144 /*******************************************************************************
146 * FUNCTION: AcpiDbStartCommand
148 * PARAMETERS: WalkState - Current walk
149 * Op - Current executing Op, from AML interpreter
153 * DESCRIPTION: Enter debugger command loop
155 ******************************************************************************/
159 ACPI_WALK_STATE *WalkState,
160 ACPI_PARSE_OBJECT *Op)
165 /* TBD: [Investigate] are there namespace locking issues here? */
167 /* AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); */
169 /* Go into the command loop and await next user command */
172 AcpiGbl_MethodExecuting = TRUE;
173 Status = AE_CTRL_TRUE;
174 while (Status == AE_CTRL_TRUE)
176 if (AcpiGbl_DebuggerConfiguration == DEBUGGER_MULTI_THREADED)
178 /* Handshake with the front-end that gets user command lines */
180 Status = AcpiUtReleaseMutex (ACPI_MTX_DEBUG_CMD_COMPLETE);
181 if (ACPI_FAILURE (Status))
185 Status = AcpiUtAcquireMutex (ACPI_MTX_DEBUG_CMD_READY);
186 if (ACPI_FAILURE (Status))
193 /* Single threaded, we must get a command line ourselves */
195 /* Force output to console until a command is entered */
197 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);
199 /* Different prompt if method is executing */
201 if (!AcpiGbl_MethodExecuting)
203 AcpiOsPrintf ("%1c ", ACPI_DEBUGGER_COMMAND_PROMPT);
207 AcpiOsPrintf ("%1c ", ACPI_DEBUGGER_EXECUTE_PROMPT);
210 /* Get the user input line */
212 (void) AcpiOsGetLine (AcpiGbl_DbLineBuf);
215 Status = AcpiDbCommandDispatch (AcpiGbl_DbLineBuf, WalkState, Op);
218 /* AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); */
224 /*******************************************************************************
226 * FUNCTION: AcpiDbSingleStep
228 * PARAMETERS: WalkState - Current walk
229 * Op - Current executing op (from aml interpreter)
230 * OpcodeClass - Class of the current AML Opcode
234 * DESCRIPTION: Called just before execution of an AML opcode.
236 ******************************************************************************/
240 ACPI_WALK_STATE *WalkState,
241 ACPI_PARSE_OBJECT *Op,
244 ACPI_PARSE_OBJECT *Next;
245 ACPI_STATUS Status = AE_OK;
246 UINT32 OriginalDebugLevel;
247 ACPI_PARSE_OBJECT *DisplayOp;
248 ACPI_PARSE_OBJECT *ParentOp;
251 ACPI_FUNCTION_ENTRY ();
254 /* Check the abort flag */
256 if (AcpiGbl_AbortMethod)
258 AcpiGbl_AbortMethod = FALSE;
259 return (AE_ABORT_METHOD);
262 /* Check for single-step breakpoint */
264 if (WalkState->MethodBreakpoint &&
265 (WalkState->MethodBreakpoint <= Op->Common.AmlOffset))
267 /* Check if the breakpoint has been reached or passed */
268 /* Hit the breakpoint, resume single step, reset breakpoint */
270 AcpiOsPrintf ("***Break*** at AML offset %X\n", Op->Common.AmlOffset);
271 AcpiGbl_CmSingleStep = TRUE;
272 AcpiGbl_StepToNextCall = FALSE;
273 WalkState->MethodBreakpoint = 0;
276 /* Check for user breakpoint (Must be on exact Aml offset) */
278 else if (WalkState->UserBreakpoint &&
279 (WalkState->UserBreakpoint == Op->Common.AmlOffset))
281 AcpiOsPrintf ("***UserBreakpoint*** at AML offset %X\n",
282 Op->Common.AmlOffset);
283 AcpiGbl_CmSingleStep = TRUE;
284 AcpiGbl_StepToNextCall = FALSE;
285 WalkState->MethodBreakpoint = 0;
289 * Check if this is an opcode that we are interested in --
290 * namely, opcodes that have arguments
292 if (Op->Common.AmlOpcode == AML_INT_NAMEDFIELD_OP)
299 case AML_CLASS_UNKNOWN:
300 case AML_CLASS_ARGUMENT: /* constants, literals, etc. do nothing */
304 /* All other opcodes -- continue */
309 * Under certain debug conditions, display this opcode and its operands
311 if ((AcpiGbl_DbOutputToFile) ||
312 (AcpiGbl_CmSingleStep) ||
313 (AcpiDbgLevel & ACPI_LV_PARSE))
315 if ((AcpiGbl_DbOutputToFile) ||
316 (AcpiDbgLevel & ACPI_LV_PARSE))
318 AcpiOsPrintf ("\n[AmlDebug] Next AML Opcode to execute:\n");
322 * Display this op (and only this op - zero out the NEXT field
323 * temporarily, and disable parser trace output for the duration of
324 * the display because we don't want the extraneous debug output)
326 OriginalDebugLevel = AcpiDbgLevel;
327 AcpiDbgLevel &= ~(ACPI_LV_PARSE | ACPI_LV_FUNCTIONS);
328 Next = Op->Common.Next;
329 Op->Common.Next = NULL;
333 ParentOp = Op->Common.Parent;
336 if ((WalkState->ControlState) &&
337 (WalkState->ControlState->Common.State ==
338 ACPI_CONTROL_PREDICATE_EXECUTING))
341 * We are executing the predicate of an IF or WHILE statement
342 * Search upwards for the containing IF or WHILE so that the
343 * entire predicate can be displayed.
347 if ((ParentOp->Common.AmlOpcode == AML_IF_OP) ||
348 (ParentOp->Common.AmlOpcode == AML_WHILE_OP))
350 DisplayOp = ParentOp;
353 ParentOp = ParentOp->Common.Parent;
360 if ((ParentOp->Common.AmlOpcode == AML_IF_OP) ||
361 (ParentOp->Common.AmlOpcode == AML_ELSE_OP) ||
362 (ParentOp->Common.AmlOpcode == AML_SCOPE_OP) ||
363 (ParentOp->Common.AmlOpcode == AML_METHOD_OP) ||
364 (ParentOp->Common.AmlOpcode == AML_WHILE_OP))
368 DisplayOp = ParentOp;
369 ParentOp = ParentOp->Common.Parent;
374 /* Now we can display it */
376 AcpiDmDisassemble (WalkState, DisplayOp, ACPI_UINT32_MAX);
378 if ((Op->Common.AmlOpcode == AML_IF_OP) ||
379 (Op->Common.AmlOpcode == AML_WHILE_OP))
381 if (WalkState->ControlState->Common.Value)
383 AcpiOsPrintf ("Predicate = [True], IF block was executed\n");
387 AcpiOsPrintf ("Predicate = [False], Skipping IF block\n");
390 else if (Op->Common.AmlOpcode == AML_ELSE_OP)
392 AcpiOsPrintf ("Predicate = [False], ELSE block was executed\n");
395 /* Restore everything */
397 Op->Common.Next = Next;
399 if ((AcpiGbl_DbOutputToFile) ||
400 (AcpiDbgLevel & ACPI_LV_PARSE))
404 AcpiDbgLevel = OriginalDebugLevel;
407 /* If we are not single stepping, just continue executing the method */
409 if (!AcpiGbl_CmSingleStep)
415 * If we are executing a step-to-call command,
416 * Check if this is a method call.
418 if (AcpiGbl_StepToNextCall)
420 if (Op->Common.AmlOpcode != AML_INT_METHODCALL_OP)
422 /* Not a method call, just keep executing */
427 /* Found a method call, stop executing */
429 AcpiGbl_StepToNextCall = FALSE;
433 * If the next opcode is a method call, we will "step over" it
436 if (Op->Common.AmlOpcode == AML_INT_METHODCALL_OP)
438 /* Force no more single stepping while executing called method */
440 AcpiGbl_CmSingleStep = FALSE;
443 * Set the breakpoint on/before the call, it will stop execution
444 * as soon as we return
446 WalkState->MethodBreakpoint = 1; /* Must be non-zero! */
450 Status = AcpiDbStartCommand (WalkState, Op);
452 /* User commands complete, continue execution of the interrupted method */
458 /*******************************************************************************
460 * FUNCTION: AcpiDbInitialize
466 * DESCRIPTION: Init and start debugger
468 ******************************************************************************/
479 AcpiGbl_DbBuffer = NULL;
480 AcpiGbl_DbFilename = NULL;
481 AcpiGbl_DbOutputToFile = FALSE;
483 AcpiGbl_DbDebugLevel = ACPI_LV_VERBOSITY2;
484 AcpiGbl_DbConsoleDebugLevel = ACPI_NORMAL_DEFAULT | ACPI_LV_TABLES;
485 AcpiGbl_DbOutputFlags = ACPI_DB_CONSOLE_OUTPUT;
487 AcpiGbl_DbOpt_tables = FALSE;
488 AcpiGbl_DbOpt_disasm = FALSE;
489 AcpiGbl_DbOpt_stats = FALSE;
490 AcpiGbl_DbOpt_verbose = TRUE;
491 AcpiGbl_DbOpt_ini_methods = TRUE;
493 AcpiGbl_DbBuffer = AcpiOsAllocate (ACPI_DEBUG_BUFFER_SIZE);
494 if (!AcpiGbl_DbBuffer)
496 return (AE_NO_MEMORY);
498 ACPI_MEMSET (AcpiGbl_DbBuffer, 0, ACPI_DEBUG_BUFFER_SIZE);
500 /* Initial scope is the root */
502 AcpiGbl_DbScopeBuf [0] = '\\';
503 AcpiGbl_DbScopeBuf [1] = 0;
504 AcpiGbl_DbScopeNode = AcpiGbl_RootNode;
507 * If configured for multi-thread support, the debug executor runs in
508 * a separate thread so that the front end can be in another address
509 * space, environment, or even another machine.
511 if (AcpiGbl_DebuggerConfiguration & DEBUGGER_MULTI_THREADED)
513 /* These were created with one unit, grab it */
515 Status = AcpiUtAcquireMutex (ACPI_MTX_DEBUG_CMD_COMPLETE);
516 if (ACPI_FAILURE (Status))
518 AcpiOsPrintf ("Could not get debugger mutex\n");
522 Status = AcpiUtAcquireMutex (ACPI_MTX_DEBUG_CMD_READY);
523 if (ACPI_FAILURE (Status))
525 AcpiOsPrintf ("Could not get debugger mutex\n");
529 /* Create the debug execution thread to execute commands */
531 Status = AcpiOsExecute (OSL_DEBUGGER_THREAD, AcpiDbExecuteThread, NULL);
532 if (ACPI_FAILURE (Status))
534 AcpiOsPrintf ("Could not start debugger thread\n");
539 if (!AcpiGbl_DbOpt_verbose)
541 AcpiGbl_DbOpt_disasm = TRUE;
542 AcpiGbl_DbOpt_stats = FALSE;
549 /*******************************************************************************
551 * FUNCTION: AcpiDbTerminate
557 * DESCRIPTION: Stop debugger
559 ******************************************************************************/
566 if (AcpiGbl_DbTablePtr)
568 AcpiOsFree (AcpiGbl_DbTablePtr);
570 if (AcpiGbl_DbBuffer)
572 AcpiOsFree (AcpiGbl_DbBuffer);
577 #ifdef ACPI_OBSOLETE_FUNCTIONS
578 /*******************************************************************************
580 * FUNCTION: AcpiDbMethodEnd
582 * PARAMETERS: WalkState - Current walk
586 * DESCRIPTION: Called at method termination
588 ******************************************************************************/
592 ACPI_WALK_STATE *WalkState)
595 if (!AcpiGbl_CmSingleStep)
600 AcpiOsPrintf ("<Method Terminating>\n");
602 AcpiDbStartCommand (WalkState, NULL);
606 #endif /* ACPI_DEBUGGER */