1 /*******************************************************************************
3 * Module Name: dbxface - AML Debugger external interfaces
6 ******************************************************************************/
8 /******************************************************************************
12 * Some or all of this work - Copyright (c) 1999, 2000, 2001, 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 *****************************************************************************/
119 #include "acparser.h"
121 #include "acnamesp.h"
122 #include "acparser.h"
123 #include "acevents.h"
124 #include "acinterp.h"
128 #ifdef ENABLE_DEBUGGER
130 #define _COMPONENT ACPI_DEBUGGER
131 MODULE_NAME ("dbxface")
134 /*******************************************************************************
136 * FUNCTION: AcpiDbSingleStep
138 * PARAMETERS: WalkState - Current walk
139 * Op - Current executing op
140 * OpType - Type of the current AML Opcode
144 * DESCRIPTION: Called just before execution of an AML opcode.
146 ******************************************************************************/
150 ACPI_WALK_STATE *WalkState,
151 ACPI_PARSE_OBJECT *Op,
154 ACPI_PARSE_OBJECT *Next;
155 ACPI_STATUS Status = AE_OK;
156 UINT32 OriginalDebugLevel;
157 ACPI_PARSE_OBJECT *DisplayOp;
160 /* Is there a breakpoint set? */
162 if (WalkState->MethodBreakpoint)
164 /* Check if the breakpoint has been reached or passed */
166 if (WalkState->MethodBreakpoint <= Op->AmlOffset)
168 /* Hit the breakpoint, resume single step, reset breakpoint */
170 AcpiOsPrintf ("***Break*** at AML offset %X\n", Op->AmlOffset);
171 AcpiGbl_CmSingleStep = TRUE;
172 AcpiGbl_StepToNextCall = FALSE;
173 WalkState->MethodBreakpoint = 0;
179 * Check if this is an opcode that we are interested in --
180 * namely, opcodes that have arguments
183 if (Op->Opcode == AML_INT_NAMEDFIELD_OP)
190 case OPTYPE_UNDEFINED:
191 case OPTYPE_CONSTANT: /* argument type only */
192 case OPTYPE_LITERAL: /* argument type only */
193 case OPTYPE_DATA_TERM: /* argument type only */
194 case OPTYPE_LOCAL_VARIABLE: /* argument type only */
195 case OPTYPE_METHOD_ARGUMENT: /* argument type only */
199 case OPTYPE_NAMED_OBJECT:
202 case AML_INT_NAMEPATH_OP:
210 * Under certain debug conditions, display this opcode and its operands
213 if ((OutputToFile) ||
214 (AcpiGbl_CmSingleStep) ||
215 (AcpiDbgLevel & ACPI_LV_PARSE))
217 if ((OutputToFile) ||
218 (AcpiDbgLevel & ACPI_LV_PARSE))
220 AcpiOsPrintf ("\n[AmlDebug] Next AML Opcode to execute:\n");
224 * Display this op (and only this op - zero out the NEXT field temporarily,
225 * and disable parser trace output for the duration of the display because
226 * we don't want the extraneous debug output)
229 OriginalDebugLevel = AcpiDbgLevel;
230 AcpiDbgLevel &= ~(ACPI_LV_PARSE | ACPI_LV_FUNCTIONS);
238 if ((Op->Parent->Opcode == AML_IF_OP) ||
239 (Op->Parent->Opcode == AML_WHILE_OP))
241 DisplayOp = Op->Parent;
245 /* Now we can display it */
247 AcpiDbDisplayOp (WalkState, DisplayOp, ACPI_UINT32_MAX);
249 if ((Op->Opcode == AML_IF_OP) ||
250 (Op->Opcode == AML_WHILE_OP))
252 if (WalkState->ControlState->Common.Value)
254 AcpiOsPrintf ("Predicate was TRUE, executed block\n");
258 AcpiOsPrintf ("Predicate is FALSE, skipping block\n");
262 else if (Op->Opcode == AML_ELSE_OP)
268 /* Restore everything */
272 AcpiDbgLevel = OriginalDebugLevel;
276 /* If we are not single stepping, just continue executing the method */
278 if (!AcpiGbl_CmSingleStep)
285 * If we are executing a step-to-call command,
286 * Check if this is a method call.
289 if (AcpiGbl_StepToNextCall)
291 if (Op->Opcode != AML_INT_METHODCALL_OP)
293 /* Not a method call, just keep executing */
298 /* Found a method call, stop executing */
300 AcpiGbl_StepToNextCall = FALSE;
305 * If the next opcode is a method call, we will "step over" it
309 if (Op->Opcode == AML_INT_METHODCALL_OP)
311 AcpiGbl_CmSingleStep = FALSE; /* No more single step while executing called method */
313 /* Set the breakpoint on the call, it will stop execution as soon as we return */
315 /* TBD: [Future] don't kill the user breakpoint! */
317 WalkState->MethodBreakpoint = /* Op->AmlOffset + */ 1; /* Must be non-zero! */
321 /* TBD: [Investigate] what are the namespace locking issues here */
323 /* AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); */
325 /* Go into the command loop and await next user command */
327 AcpiGbl_MethodExecuting = TRUE;
328 Status = AE_CTRL_TRUE;
329 while (Status == AE_CTRL_TRUE)
331 if (AcpiGbl_DebuggerConfiguration == DEBUGGER_MULTI_THREADED)
333 /* Handshake with the front-end that gets user command lines */
335 AcpiUtReleaseMutex (ACPI_MTX_DEBUG_CMD_COMPLETE);
336 AcpiUtAcquireMutex (ACPI_MTX_DEBUG_CMD_READY);
341 /* Single threaded, we must get a command line ourselves */
343 /* Force output to console until a command is entered */
345 AcpiDbSetOutputDestination (DB_CONSOLE_OUTPUT);
347 /* Different prompt if method is executing */
349 if (!AcpiGbl_MethodExecuting)
351 AcpiOsPrintf ("%1c ", DB_COMMAND_PROMPT);
355 AcpiOsPrintf ("%1c ", DB_EXECUTE_PROMPT);
358 /* Get the user input line */
360 AcpiOsGetLine (LineBuf);
363 Status = AcpiDbCommandDispatch (LineBuf, WalkState, Op);
366 /* AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); */
369 /* User commands complete, continue execution of the interrupted method */
375 /*******************************************************************************
377 * FUNCTION: AcpiDbInitialize
383 * DESCRIPTION: Init and start debugger
385 ******************************************************************************/
388 AcpiDbInitialize (void)
394 Buffer = AcpiOsAllocate (BUFFER_SIZE);
396 /* Initial scope is the root */
403 * If configured for multi-thread support, the debug executor runs in
404 * a separate thread so that the front end can be in another address
405 * space, environment, or even another machine.
408 if (AcpiGbl_DebuggerConfiguration & DEBUGGER_MULTI_THREADED)
410 /* These were created with one unit, grab it */
412 AcpiUtAcquireMutex (ACPI_MTX_DEBUG_CMD_COMPLETE);
413 AcpiUtAcquireMutex (ACPI_MTX_DEBUG_CMD_READY);
415 /* Create the debug execution thread to execute commands */
417 AcpiOsQueueForExecution (0, AcpiDbExecuteThread, NULL);
432 #endif /* ENABLE_DEBUGGER */