1 /*******************************************************************************
3 * Module Name: dbxface - AML Debugger external interfaces
5 ******************************************************************************/
7 /******************************************************************************
11 * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
12 * All rights reserved.
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
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
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;
37 * The above copyright and patent license is granted only if the following
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.
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
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
72 * 3.4. Intel retains all right, title, and interest in and to the Original
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.
80 * 4. Disclaimer and Export Compliance
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
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
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.
114 *****************************************************************************/
118 #include "accommon.h"
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 Status = AcpiOsGetLine (AcpiGbl_DbLineBuf,
213 ACPI_DB_LINE_BUFFER_SIZE, NULL);
214 if (ACPI_FAILURE (Status))
216 ACPI_EXCEPTION ((AE_INFO, Status, "While parsing command line"));
221 Status = AcpiDbCommandDispatch (AcpiGbl_DbLineBuf, WalkState, Op);
224 /* AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); */
230 /*******************************************************************************
232 * FUNCTION: AcpiDbSingleStep
234 * PARAMETERS: WalkState - Current walk
235 * Op - Current executing op (from aml interpreter)
236 * OpcodeClass - Class of the current AML Opcode
240 * DESCRIPTION: Called just before execution of an AML opcode.
242 ******************************************************************************/
246 ACPI_WALK_STATE *WalkState,
247 ACPI_PARSE_OBJECT *Op,
250 ACPI_PARSE_OBJECT *Next;
251 ACPI_STATUS Status = AE_OK;
252 UINT32 OriginalDebugLevel;
253 ACPI_PARSE_OBJECT *DisplayOp;
254 ACPI_PARSE_OBJECT *ParentOp;
257 ACPI_FUNCTION_ENTRY ();
260 /* Check the abort flag */
262 if (AcpiGbl_AbortMethod)
264 AcpiGbl_AbortMethod = FALSE;
265 return (AE_ABORT_METHOD);
268 /* Check for single-step breakpoint */
270 if (WalkState->MethodBreakpoint &&
271 (WalkState->MethodBreakpoint <= Op->Common.AmlOffset))
273 /* Check if the breakpoint has been reached or passed */
274 /* Hit the breakpoint, resume single step, reset breakpoint */
276 AcpiOsPrintf ("***Break*** at AML offset %X\n", Op->Common.AmlOffset);
277 AcpiGbl_CmSingleStep = TRUE;
278 AcpiGbl_StepToNextCall = FALSE;
279 WalkState->MethodBreakpoint = 0;
282 /* Check for user breakpoint (Must be on exact Aml offset) */
284 else if (WalkState->UserBreakpoint &&
285 (WalkState->UserBreakpoint == Op->Common.AmlOffset))
287 AcpiOsPrintf ("***UserBreakpoint*** at AML offset %X\n",
288 Op->Common.AmlOffset);
289 AcpiGbl_CmSingleStep = TRUE;
290 AcpiGbl_StepToNextCall = FALSE;
291 WalkState->MethodBreakpoint = 0;
295 * Check if this is an opcode that we are interested in --
296 * namely, opcodes that have arguments
298 if (Op->Common.AmlOpcode == AML_INT_NAMEDFIELD_OP)
305 case AML_CLASS_UNKNOWN:
306 case AML_CLASS_ARGUMENT: /* constants, literals, etc. do nothing */
310 /* All other opcodes -- continue */
315 * Under certain debug conditions, display this opcode and its operands
317 if ((AcpiGbl_DbOutputToFile) ||
318 (AcpiGbl_CmSingleStep) ||
319 (AcpiDbgLevel & ACPI_LV_PARSE))
321 if ((AcpiGbl_DbOutputToFile) ||
322 (AcpiDbgLevel & ACPI_LV_PARSE))
324 AcpiOsPrintf ("\n[AmlDebug] Next AML Opcode to execute:\n");
328 * Display this op (and only this op - zero out the NEXT field
329 * temporarily, and disable parser trace output for the duration of
330 * the display because we don't want the extraneous debug output)
332 OriginalDebugLevel = AcpiDbgLevel;
333 AcpiDbgLevel &= ~(ACPI_LV_PARSE | ACPI_LV_FUNCTIONS);
334 Next = Op->Common.Next;
335 Op->Common.Next = NULL;
339 ParentOp = Op->Common.Parent;
342 if ((WalkState->ControlState) &&
343 (WalkState->ControlState->Common.State ==
344 ACPI_CONTROL_PREDICATE_EXECUTING))
347 * We are executing the predicate of an IF or WHILE statement
348 * Search upwards for the containing IF or WHILE so that the
349 * entire predicate can be displayed.
353 if ((ParentOp->Common.AmlOpcode == AML_IF_OP) ||
354 (ParentOp->Common.AmlOpcode == AML_WHILE_OP))
356 DisplayOp = ParentOp;
359 ParentOp = ParentOp->Common.Parent;
366 if ((ParentOp->Common.AmlOpcode == AML_IF_OP) ||
367 (ParentOp->Common.AmlOpcode == AML_ELSE_OP) ||
368 (ParentOp->Common.AmlOpcode == AML_SCOPE_OP) ||
369 (ParentOp->Common.AmlOpcode == AML_METHOD_OP) ||
370 (ParentOp->Common.AmlOpcode == AML_WHILE_OP))
374 DisplayOp = ParentOp;
375 ParentOp = ParentOp->Common.Parent;
380 /* Now we can display it */
382 AcpiDmDisassemble (WalkState, DisplayOp, ACPI_UINT32_MAX);
384 if ((Op->Common.AmlOpcode == AML_IF_OP) ||
385 (Op->Common.AmlOpcode == AML_WHILE_OP))
387 if (WalkState->ControlState->Common.Value)
389 AcpiOsPrintf ("Predicate = [True], IF block was executed\n");
393 AcpiOsPrintf ("Predicate = [False], Skipping IF block\n");
396 else if (Op->Common.AmlOpcode == AML_ELSE_OP)
398 AcpiOsPrintf ("Predicate = [False], ELSE block was executed\n");
401 /* Restore everything */
403 Op->Common.Next = Next;
405 if ((AcpiGbl_DbOutputToFile) ||
406 (AcpiDbgLevel & ACPI_LV_PARSE))
410 AcpiDbgLevel = OriginalDebugLevel;
413 /* If we are not single stepping, just continue executing the method */
415 if (!AcpiGbl_CmSingleStep)
421 * If we are executing a step-to-call command,
422 * Check if this is a method call.
424 if (AcpiGbl_StepToNextCall)
426 if (Op->Common.AmlOpcode != AML_INT_METHODCALL_OP)
428 /* Not a method call, just keep executing */
433 /* Found a method call, stop executing */
435 AcpiGbl_StepToNextCall = FALSE;
439 * If the next opcode is a method call, we will "step over" it
442 if (Op->Common.AmlOpcode == AML_INT_METHODCALL_OP)
444 /* Force no more single stepping while executing called method */
446 AcpiGbl_CmSingleStep = FALSE;
449 * Set the breakpoint on/before the call, it will stop execution
450 * as soon as we return
452 WalkState->MethodBreakpoint = 1; /* Must be non-zero! */
456 Status = AcpiDbStartCommand (WalkState, Op);
458 /* User commands complete, continue execution of the interrupted method */
464 /*******************************************************************************
466 * FUNCTION: AcpiDbInitialize
472 * DESCRIPTION: Init and start debugger
474 ******************************************************************************/
485 AcpiGbl_DbBuffer = NULL;
486 AcpiGbl_DbFilename = NULL;
487 AcpiGbl_DbOutputToFile = FALSE;
489 AcpiGbl_DbDebugLevel = ACPI_LV_VERBOSITY2;
490 AcpiGbl_DbConsoleDebugLevel = ACPI_NORMAL_DEFAULT | ACPI_LV_TABLES;
491 AcpiGbl_DbOutputFlags = ACPI_DB_CONSOLE_OUTPUT;
493 AcpiGbl_DbOpt_tables = FALSE;
494 AcpiGbl_DbOpt_disasm = FALSE;
495 AcpiGbl_DbOpt_stats = FALSE;
496 AcpiGbl_DbOpt_verbose = TRUE;
497 AcpiGbl_DbOpt_ini_methods = TRUE;
499 AcpiGbl_DbBuffer = AcpiOsAllocate (ACPI_DEBUG_BUFFER_SIZE);
500 if (!AcpiGbl_DbBuffer)
502 return (AE_NO_MEMORY);
504 ACPI_MEMSET (AcpiGbl_DbBuffer, 0, ACPI_DEBUG_BUFFER_SIZE);
506 /* Initial scope is the root */
508 AcpiGbl_DbScopeBuf [0] = '\\';
509 AcpiGbl_DbScopeBuf [1] = 0;
510 AcpiGbl_DbScopeNode = AcpiGbl_RootNode;
513 * If configured for multi-thread support, the debug executor runs in
514 * a separate thread so that the front end can be in another address
515 * space, environment, or even another machine.
517 if (AcpiGbl_DebuggerConfiguration & DEBUGGER_MULTI_THREADED)
519 /* These were created with one unit, grab it */
521 Status = AcpiUtAcquireMutex (ACPI_MTX_DEBUG_CMD_COMPLETE);
522 if (ACPI_FAILURE (Status))
524 AcpiOsPrintf ("Could not get debugger mutex\n");
528 Status = AcpiUtAcquireMutex (ACPI_MTX_DEBUG_CMD_READY);
529 if (ACPI_FAILURE (Status))
531 AcpiOsPrintf ("Could not get debugger mutex\n");
535 /* Create the debug execution thread to execute commands */
537 Status = AcpiOsExecute (OSL_DEBUGGER_THREAD, AcpiDbExecuteThread, NULL);
538 if (ACPI_FAILURE (Status))
540 AcpiOsPrintf ("Could not start debugger thread\n");
545 if (!AcpiGbl_DbOpt_verbose)
547 AcpiGbl_DbOpt_disasm = TRUE;
548 AcpiGbl_DbOpt_stats = FALSE;
555 /*******************************************************************************
557 * FUNCTION: AcpiDbTerminate
563 * DESCRIPTION: Stop debugger
565 ******************************************************************************/
572 if (AcpiGbl_DbBuffer)
574 AcpiOsFree (AcpiGbl_DbBuffer);
579 #ifdef ACPI_OBSOLETE_FUNCTIONS
580 /*******************************************************************************
582 * FUNCTION: AcpiDbMethodEnd
584 * PARAMETERS: WalkState - Current walk
588 * DESCRIPTION: Called at method termination
590 ******************************************************************************/
594 ACPI_WALK_STATE *WalkState)
597 if (!AcpiGbl_CmSingleStep)
602 AcpiOsPrintf ("<Method Terminating>\n");
604 AcpiDbStartCommand (WalkState, NULL);
608 #endif /* ACPI_DEBUGGER */