1/*******************************************************************************
2 *
3 * Module Name: dbinput - user front-end to the AML debugger
4 *
5 ******************************************************************************/
6
7/******************************************************************************
8 *
9 * 1. Copyright Notice
10 *
11 * Some or all of this work - Copyright (c) 1999 - 2020, 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 <contrib/dev/acpica/include/acpi.h>
153#include <contrib/dev/acpica/include/accommon.h>
154#include <contrib/dev/acpica/include/acdebug.h>
155
156#ifdef ACPI_APPLICATION
157#include <contrib/dev/acpica/include/acapps.h>
158#endif
159
160#define _COMPONENT          ACPI_CA_DEBUGGER
161        ACPI_MODULE_NAME    ("dbinput")
162
163
164/* Local prototypes */
165
166static UINT32
167AcpiDbGetLine (
168    char                    *InputBuffer);
169
170static UINT32
171AcpiDbMatchCommand (
172    char                    *UserCommand);
173
174static void
175AcpiDbDisplayCommandInfo (
176    const char              *Command,
177    BOOLEAN                 DisplayAll);
178
179static void
180AcpiDbDisplayHelp (
181    char                    *Command);
182
183static BOOLEAN
184AcpiDbMatchCommandHelp (
185    const char                  *Command,
186    const ACPI_DB_COMMAND_HELP  *Help);
187
188
189/*
190 * Top-level debugger commands.
191 *
192 * This list of commands must match the string table below it
193 */
194enum AcpiExDebuggerCommands
195{
196    CMD_NOT_FOUND = 0,
197    CMD_NULL,
198    CMD_ALLOCATIONS,
199    CMD_ARGS,
200    CMD_ARGUMENTS,
201    CMD_BREAKPOINT,
202    CMD_BUSINFO,
203    CMD_CALL,
204    CMD_DEBUG,
205    CMD_DISASSEMBLE,
206    CMD_DISASM,
207    CMD_DUMP,
208    CMD_EVALUATE,
209    CMD_EXECUTE,
210    CMD_EXIT,
211    CMD_FIELDS,
212    CMD_FIND,
213    CMD_GO,
214    CMD_HANDLERS,
215    CMD_HELP,
216    CMD_HELP2,
217    CMD_HISTORY,
218    CMD_HISTORY_EXE,
219    CMD_HISTORY_LAST,
220    CMD_INFORMATION,
221    CMD_INTEGRITY,
222    CMD_INTO,
223    CMD_LEVEL,
224    CMD_LIST,
225    CMD_LOCALS,
226    CMD_LOCKS,
227    CMD_METHODS,
228    CMD_NAMESPACE,
229    CMD_NOTIFY,
230    CMD_OBJECTS,
231    CMD_OSI,
232    CMD_OWNER,
233    CMD_PATHS,
234    CMD_PREDEFINED,
235    CMD_PREFIX,
236    CMD_QUIT,
237    CMD_REFERENCES,
238    CMD_RESOURCES,
239    CMD_RESULTS,
240    CMD_SET,
241    CMD_STATS,
242    CMD_STOP,
243    CMD_TABLES,
244    CMD_TEMPLATE,
245    CMD_TRACE,
246    CMD_TREE,
247    CMD_TYPE,
248#ifdef ACPI_APPLICATION
249    CMD_ENABLEACPI,
250    CMD_EVENT,
251    CMD_GPE,
252    CMD_GPES,
253    CMD_SCI,
254    CMD_SLEEP,
255
256    CMD_CLOSE,
257    CMD_LOAD,
258    CMD_OPEN,
259    CMD_UNLOAD,
260
261    CMD_TERMINATE,
262    CMD_BACKGROUND,
263    CMD_THREADS,
264
265    CMD_TEST,
266#endif
267};
268
269#define CMD_FIRST_VALID     2
270
271
272/* Second parameter is the required argument count */
273
274static const ACPI_DB_COMMAND_INFO   AcpiGbl_DbCommands[] =
275{
276    {"<NOT FOUND>",  0},
277    {"<NULL>",       0},
278    {"ALLOCATIONS",  0},
279    {"ARGS",         0},
280    {"ARGUMENTS",    0},
281    {"BREAKPOINT",   1},
282    {"BUSINFO",      0},
283    {"CALL",         0},
284    {"DEBUG",        1},
285    {"DISASSEMBLE",  1},
286    {"DISASM",       1},
287    {"DUMP",         1},
288    {"EVALUATE",     1},
289    {"EXECUTE",      1},
290    {"EXIT",         0},
291    {"FIELDS",       1},
292    {"FIND",         1},
293    {"GO",           0},
294    {"HANDLERS",     0},
295    {"HELP",         0},
296    {"?",            0},
297    {"HISTORY",      0},
298    {"!",            1},
299    {"!!",           0},
300    {"INFORMATION",  0},
301    {"INTEGRITY",    0},
302    {"INTO",         0},
303    {"LEVEL",        0},
304    {"LIST",         0},
305    {"LOCALS",       0},
306    {"LOCKS",        0},
307    {"METHODS",      0},
308    {"NAMESPACE",    0},
309    {"NOTIFY",       2},
310    {"OBJECTS",      0},
311    {"OSI",          0},
312    {"OWNER",        1},
313    {"PATHS",        0},
314    {"PREDEFINED",   0},
315    {"PREFIX",       0},
316    {"QUIT",         0},
317    {"REFERENCES",   1},
318    {"RESOURCES",    0},
319    {"RESULTS",      0},
320    {"SET",          3},
321    {"STATS",        1},
322    {"STOP",         0},
323    {"TABLES",       0},
324    {"TEMPLATE",     1},
325    {"TRACE",        1},
326    {"TREE",         0},
327    {"TYPE",         1},
328#ifdef ACPI_APPLICATION
329    {"ENABLEACPI",   0},
330    {"EVENT",        1},
331    {"GPE",          1},
332    {"GPES",         0},
333    {"SCI",          0},
334    {"SLEEP",        0},
335
336    {"CLOSE",        0},
337    {"LOAD",         1},
338    {"OPEN",         1},
339    {"UNLOAD",       1},
340
341    {"TERMINATE",    0},
342    {"BACKGROUND",   1},
343    {"THREADS",      3},
344
345    {"TEST",         1},
346#endif
347    {NULL,           0}
348};
349
350/*
351 * Help for all debugger commands. First argument is the number of lines
352 * of help to output for the command.
353 *
354 * Note: Some commands are not supported by the kernel-level version of
355 * the debugger.
356 */
357static const ACPI_DB_COMMAND_HELP   AcpiGbl_DbCommandHelp[] =
358{
359    {0, "\nNamespace Access:",                  "\n"},
360    {1, "  Businfo",                            "Display system bus info\n"},
361    {1, "  Disassemble <Method>",               "Disassemble a control method\n"},
362    {1, "  Find <AcpiName> (? is wildcard)",    "Find ACPI name(s) with wildcards\n"},
363    {1, "  Integrity",                          "Validate namespace integrity\n"},
364    {1, "  Methods",                            "Display list of loaded control methods\n"},
365    {1, "  Fields <AddressSpaceId>",            "Display list of loaded field units by space ID\n"},
366    {1, "  Namespace [Object] [Depth]",         "Display loaded namespace tree/subtree\n"},
367    {1, "  Notify <Object> <Value>",            "Send a notification on Object\n"},
368    {1, "  Objects [ObjectType]",               "Display summary of all objects or just given type\n"},
369    {1, "  Owner <OwnerId> [Depth]",            "Display loaded namespace by object owner\n"},
370    {1, "  Paths",                              "Display full pathnames of namespace objects\n"},
371    {1, "  Predefined",                         "Check all predefined names\n"},
372    {1, "  Prefix [<Namepath>]",                "Set or Get current execution prefix\n"},
373    {1, "  References <Addr>",                  "Find all references to object at addr\n"},
374    {1, "  Resources [DeviceName]",             "Display Device resources (no arg = all devices)\n"},
375    {1, "  Set N <NamedObject> <Value>",        "Set value for named integer\n"},
376    {1, "  Template <Object>",                  "Format/dump a Buffer/ResourceTemplate\n"},
377    {1, "  Type <Object>",                      "Display object type\n"},
378
379    {0, "\nControl Method Execution:",          "\n"},
380    {1, "  Evaluate <Namepath> [Arguments]",    "Evaluate object or control method\n"},
381    {1, "  Execute <Namepath> [Arguments]",     "Synonym for Evaluate\n"},
382#ifdef ACPI_APPLICATION
383    {1, "  Background <Namepath> [Arguments]",  "Evaluate object/method in a separate thread\n"},
384    {1, "  Thread <Threads><Loops><NamePath>",  "Spawn threads to execute method(s)\n"},
385#endif
386    {1, "  Debug <Namepath> [Arguments]",       "Single-Step a control method\n"},
387    {7, "  [Arguments] formats:",               "Control method argument formats\n"},
388    {1, "     Hex Integer",                     "Integer\n"},
389    {1, "     \"Ascii String\"",                "String\n"},
390    {1, "     (Hex Byte List)",                 "Buffer\n"},
391    {1, "         (01 42 7A BF)",               "Buffer example (4 bytes)\n"},
392    {1, "     [Package Element List]",          "Package\n"},
393    {1, "         [0x01 0x1234 \"string\"]",    "Package example (3 elements)\n"},
394
395    {0, "\nMiscellaneous:",                     "\n"},
396    {1, "  Allocations",                        "Display list of current memory allocations\n"},
397    {2, "  Dump <Address>|<Namepath>",          "\n"},
398    {0, "       [Byte|Word|Dword|Qword]",       "Display ACPI objects or memory\n"},
399    {1, "  Handlers",                           "Info about global handlers\n"},
400    {1, "  Help [Command]",                     "This help screen or individual command\n"},
401    {1, "  History",                            "Display command history buffer\n"},
402    {1, "  Level <DebugLevel>] [console]",      "Get/Set debug level for file or console\n"},
403    {1, "  Locks",                              "Current status of internal mutexes\n"},
404    {1, "  Osi [Install|Remove <name>]",        "Display or modify global _OSI list\n"},
405    {1, "  Quit or Exit",                       "Exit this command\n"},
406    {8, "  Stats <SubCommand>",                 "Display namespace and memory statistics\n"},
407    {1, "     Allocations",                     "Display list of current memory allocations\n"},
408    {1, "     Memory",                          "Dump internal memory lists\n"},
409    {1, "     Misc",                            "Namespace search and mutex stats\n"},
410    {1, "     Objects",                         "Summary of namespace objects\n"},
411    {1, "     Sizes",                           "Sizes for each of the internal objects\n"},
412    {1, "     Stack",                           "Display CPU stack usage\n"},
413    {1, "     Tables",                          "Info about current ACPI table(s)\n"},
414    {1, "  Tables",                             "Display info about loaded ACPI tables\n"},
415#ifdef ACPI_APPLICATION
416    {1, "  Terminate",                          "Delete namespace and all internal objects\n"},
417#endif
418    {1, "  ! <CommandNumber>",                  "Execute command from history buffer\n"},
419    {1, "  !!",                                 "Execute last command again\n"},
420
421    {0, "\nMethod and Namespace Debugging:",    "\n"},
422    {5, "  Trace <State> [<Namepath>] [Once]",  "Trace control method execution\n"},
423    {1, "     Enable",                          "Enable all messages\n"},
424    {1, "     Disable",                         "Disable tracing\n"},
425    {1, "     Method",                          "Enable method execution messages\n"},
426    {1, "     Opcode",                          "Enable opcode execution messages\n"},
427    {3, "  Test <TestName>",                    "Invoke a debug test\n"},
428    {1, "     Objects",                         "Read/write/compare all namespace data objects\n"},
429    {1, "     Predefined",                      "Validate all ACPI predefined names (_STA, etc.)\n"},
430    {1, "  Execute predefined",                 "Execute all predefined (public) methods\n"},
431
432    {0, "\nControl Method Single-Step Execution:","\n"},
433    {1, "  Arguments (or Args)",                "Display method arguments\n"},
434    {1, "  Breakpoint <AmlOffset>",             "Set an AML execution breakpoint\n"},
435    {1, "  Call",                               "Run to next control method invocation\n"},
436    {1, "  Go",                                 "Allow method to run to completion\n"},
437    {1, "  Information",                        "Display info about the current method\n"},
438    {1, "  Into",                               "Step into (not over) a method call\n"},
439    {1, "  List [# of Aml Opcodes]",            "Display method ASL statements\n"},
440    {1, "  Locals",                             "Display method local variables\n"},
441    {1, "  Results",                            "Display method result stack\n"},
442    {1, "  Set <A|L> <#> <Value>",              "Set method data (Arguments/Locals)\n"},
443    {1, "  Stop",                               "Terminate control method\n"},
444    {1, "  Tree",                               "Display control method calling tree\n"},
445    {1, "  <Enter>",                            "Single step next AML opcode (over calls)\n"},
446
447#ifdef ACPI_APPLICATION
448    {0, "\nFile Operations:",                   "\n"},
449    {1, "  Close",                              "Close debug output file\n"},
450    {1, "  Load <Input Filename>",              "Load ACPI table from a file\n"},
451    {1, "  Open <Output Filename>",             "Open a file for debug output\n"},
452    {1, "  Unload <Namepath>",                  "Unload an ACPI table via namespace object\n"},
453
454    {0, "\nHardware Simulation:",               "\n"},
455    {1, "  EnableAcpi",                         "Enable ACPI (hardware) mode\n"},
456    {1, "  Event <F|G> <Value>",                "Generate AcpiEvent (Fixed/GPE)\n"},
457    {1, "  Gpe <GpeNum> [GpeBlockDevice]",      "Simulate a GPE\n"},
458    {1, "  Gpes",                               "Display info on all GPE devices\n"},
459    {1, "  Sci",                                "Generate an SCI\n"},
460    {1, "  Sleep [SleepState]",                 "Simulate sleep/wake sequence(s) (0-5)\n"},
461#endif
462    {0, NULL, NULL}
463};
464
465
466/*******************************************************************************
467 *
468 * FUNCTION:    AcpiDbMatchCommandHelp
469 *
470 * PARAMETERS:  Command             - Command string to match
471 *              Help                - Help table entry to attempt match
472 *
473 * RETURN:      TRUE if command matched, FALSE otherwise
474 *
475 * DESCRIPTION: Attempt to match a command in the help table in order to
476 *              print help information for a single command.
477 *
478 ******************************************************************************/
479
480static BOOLEAN
481AcpiDbMatchCommandHelp (
482    const char                  *Command,
483    const ACPI_DB_COMMAND_HELP  *Help)
484{
485    char                    *Invocation = Help->Invocation;
486    UINT32                  LineCount;
487
488
489    /* Valid commands in the help table begin with a couple of spaces */
490
491    if (*Invocation != ' ')
492    {
493        return (FALSE);
494    }
495
496    while (*Invocation == ' ')
497    {
498        Invocation++;
499    }
500
501    /* Match command name (full command or substring) */
502
503    while ((*Command) && (*Invocation) && (*Invocation != ' '))
504    {
505        if (tolower ((int) *Command) != tolower ((int) *Invocation))
506        {
507            return (FALSE);
508        }
509
510        Invocation++;
511        Command++;
512    }
513
514    /* Print the appropriate number of help lines */
515
516    LineCount = Help->LineCount;
517    while (LineCount)
518    {
519        AcpiOsPrintf ("%-38s : %s", Help->Invocation, Help->Description);
520        Help++;
521        LineCount--;
522    }
523
524    return (TRUE);
525}
526
527
528/*******************************************************************************
529 *
530 * FUNCTION:    AcpiDbDisplayCommandInfo
531 *
532 * PARAMETERS:  Command             - Command string to match
533 *              DisplayAll          - Display all matching commands, or just
534 *                                    the first one (substring match)
535 *
536 * RETURN:      None
537 *
538 * DESCRIPTION: Display help information for a Debugger command.
539 *
540 ******************************************************************************/
541
542static void
543AcpiDbDisplayCommandInfo (
544    const char              *Command,
545    BOOLEAN                 DisplayAll)
546{
547    const ACPI_DB_COMMAND_HELP  *Next;
548    BOOLEAN                     Matched;
549
550
551    Next = AcpiGbl_DbCommandHelp;
552    while (Next->Invocation)
553    {
554        Matched = AcpiDbMatchCommandHelp (Command, Next);
555        if (!DisplayAll && Matched)
556        {
557            return;
558        }
559
560        Next++;
561    }
562}
563
564
565/*******************************************************************************
566 *
567 * FUNCTION:    AcpiDbDisplayHelp
568 *
569 * PARAMETERS:  Command             - Optional command string to display help.
570 *                                    if not specified, all debugger command
571 *                                    help strings are displayed
572 *
573 * RETURN:      None
574 *
575 * DESCRIPTION: Display help for a single debugger command, or all of them.
576 *
577 ******************************************************************************/
578
579static void
580AcpiDbDisplayHelp (
581    char                    *Command)
582{
583    const ACPI_DB_COMMAND_HELP  *Next = AcpiGbl_DbCommandHelp;
584
585
586    if (!Command)
587    {
588        /* No argument to help, display help for all commands */
589
590        AcpiOsPrintf ("\nSummary of AML Debugger Commands\n\n");
591
592        while (Next->Invocation)
593        {
594            AcpiOsPrintf ("%-38s%s", Next->Invocation, Next->Description);
595            Next++;
596        }
597        AcpiOsPrintf ("\n");
598
599    }
600    else
601    {
602        /* Display help for all commands that match the subtring */
603
604        AcpiDbDisplayCommandInfo (Command, TRUE);
605    }
606}
607
608
609/*******************************************************************************
610 *
611 * FUNCTION:    AcpiDbGetNextToken
612 *
613 * PARAMETERS:  String          - Command buffer
614 *              Next            - Return value, end of next token
615 *
616 * RETURN:      Pointer to the start of the next token.
617 *
618 * DESCRIPTION: Command line parsing. Get the next token on the command line
619 *
620 ******************************************************************************/
621
622char *
623AcpiDbGetNextToken (
624    char                    *String,
625    char                    **Next,
626    ACPI_OBJECT_TYPE        *ReturnType)
627{
628    char                    *Start;
629    UINT32                  Depth;
630    ACPI_OBJECT_TYPE        Type = ACPI_TYPE_INTEGER;
631
632
633    /* At end of buffer? */
634
635    if (!String || !(*String))
636    {
637        return (NULL);
638    }
639
640    /* Remove any spaces at the beginning, ignore blank lines */
641
642    while (*String && isspace (*String))
643    {
644        String++;
645    }
646
647    if (!(*String))
648    {
649        return (NULL);
650    }
651
652    switch (*String)
653    {
654    case '"':
655
656        /* This is a quoted string, scan until closing quote */
657
658        String++;
659        Start = String;
660        Type = ACPI_TYPE_STRING;
661
662        /* Find end of string */
663
664        while (*String && (*String != '"'))
665        {
666            String++;
667        }
668        break;
669
670    case '(':
671
672        /* This is the start of a buffer, scan until closing paren */
673
674        String++;
675        Start = String;
676        Type = ACPI_TYPE_BUFFER;
677
678        /* Find end of buffer */
679
680        while (*String && (*String != ')'))
681        {
682            String++;
683        }
684        break;
685
686    case '{':
687
688        /* This is the start of a field unit, scan until closing brace */
689
690        String++;
691        Start = String;
692        Type = ACPI_TYPE_FIELD_UNIT;
693
694        /* Find end of buffer */
695
696        while (*String && (*String != '}'))
697        {
698            String++;
699        }
700        break;
701
702    case '[':
703
704        /* This is the start of a package, scan until closing bracket */
705
706        String++;
707        Depth = 1;
708        Start = String;
709        Type = ACPI_TYPE_PACKAGE;
710
711        /* Find end of package (closing bracket) */
712
713        while (*String)
714        {
715            /* Handle String package elements */
716
717            if (*String == '"')
718            {
719                /* Find end of string */
720
721                String++;
722                while (*String && (*String != '"'))
723                {
724                    String++;
725                }
726                if (!(*String))
727                {
728                    break;
729                }
730            }
731            else if (*String == '[')
732            {
733                Depth++;         /* A nested package declaration */
734            }
735            else if (*String == ']')
736            {
737                Depth--;
738                if (Depth == 0) /* Found final package closing bracket */
739                {
740                    break;
741                }
742            }
743
744            String++;
745        }
746        break;
747
748    default:
749
750        Start = String;
751
752        /* Find end of token */
753
754        while (*String && !isspace (*String))
755        {
756            String++;
757        }
758        break;
759    }
760
761    if (!(*String))
762    {
763        *Next = NULL;
764    }
765    else
766    {
767        *String = 0;
768        *Next = String + 1;
769    }
770
771    *ReturnType = Type;
772    return (Start);
773}
774
775
776/*******************************************************************************
777 *
778 * FUNCTION:    AcpiDbGetLine
779 *
780 * PARAMETERS:  InputBuffer         - Command line buffer
781 *
782 * RETURN:      Count of arguments to the command
783 *
784 * DESCRIPTION: Get the next command line from the user. Gets entire line
785 *              up to the next newline
786 *
787 ******************************************************************************/
788
789static UINT32
790AcpiDbGetLine (
791    char                    *InputBuffer)
792{
793    UINT32                  i;
794    UINT32                  Count;
795    char                    *Next;
796    char                    *This;
797
798
799    if (AcpiUtSafeStrcpy (AcpiGbl_DbParsedBuf, sizeof (AcpiGbl_DbParsedBuf),
800        InputBuffer))
801    {
802        AcpiOsPrintf (
803            "Buffer overflow while parsing input line (max %u characters)\n",
804            (UINT32) sizeof (AcpiGbl_DbParsedBuf));
805        return (0);
806    }
807
808    This = AcpiGbl_DbParsedBuf;
809    for (i = 0; i < ACPI_DEBUGGER_MAX_ARGS; i++)
810    {
811        AcpiGbl_DbArgs[i] = AcpiDbGetNextToken (This, &Next,
812            &AcpiGbl_DbArgTypes[i]);
813        if (!AcpiGbl_DbArgs[i])
814        {
815            break;
816        }
817
818        This = Next;
819    }
820
821    /* Uppercase the actual command */
822
823    AcpiUtStrupr (AcpiGbl_DbArgs[0]);
824
825    Count = i;
826    if (Count)
827    {
828        Count--;  /* Number of args only */
829    }
830
831    return (Count);
832}
833
834
835/*******************************************************************************
836 *
837 * FUNCTION:    AcpiDbMatchCommand
838 *
839 * PARAMETERS:  UserCommand             - User command line
840 *
841 * RETURN:      Index into command array, -1 if not found
842 *
843 * DESCRIPTION: Search command array for a command match
844 *
845 ******************************************************************************/
846
847static UINT32
848AcpiDbMatchCommand (
849    char                    *UserCommand)
850{
851    UINT32                  i;
852
853
854    if (!UserCommand || UserCommand[0] == 0)
855    {
856        return (CMD_NULL);
857    }
858
859    for (i = CMD_FIRST_VALID; AcpiGbl_DbCommands[i].Name; i++)
860    {
861        if (strstr (
862            ACPI_CAST_PTR (char, AcpiGbl_DbCommands[i].Name), UserCommand) ==
863            AcpiGbl_DbCommands[i].Name)
864        {
865            return (i);
866        }
867    }
868
869    /* Command not recognized */
870
871    return (CMD_NOT_FOUND);
872}
873
874
875/*******************************************************************************
876 *
877 * FUNCTION:    AcpiDbCommandDispatch
878 *
879 * PARAMETERS:  InputBuffer         - Command line buffer
880 *              WalkState           - Current walk
881 *              Op                  - Current (executing) parse op
882 *
883 * RETURN:      Status
884 *
885 * DESCRIPTION: Command dispatcher.
886 *
887 ******************************************************************************/
888
889ACPI_STATUS
890AcpiDbCommandDispatch (
891    char                    *InputBuffer,
892    ACPI_WALK_STATE         *WalkState,
893    ACPI_PARSE_OBJECT       *Op)
894{
895    UINT32                  Temp;
896    UINT64                  Temp64;
897    UINT32                  CommandIndex;
898    UINT32                  ParamCount;
899    char                    *CommandLine;
900    ACPI_STATUS             Status = AE_CTRL_TRUE;
901
902
903    /* If AcpiTerminate has been called, terminate this thread */
904
905    if (AcpiGbl_DbTerminateLoop)
906    {
907        return (AE_CTRL_TERMINATE);
908    }
909
910    /* Find command and add to the history buffer */
911
912    ParamCount = AcpiDbGetLine (InputBuffer);
913    CommandIndex = AcpiDbMatchCommand (AcpiGbl_DbArgs[0]);
914
915    /*
916     * We don't want to add the !! command to the history buffer. It
917     * would cause an infinite loop because it would always be the
918     * previous command.
919     */
920    if (CommandIndex != CMD_HISTORY_LAST)
921    {
922        AcpiDbAddToHistory (InputBuffer);
923    }
924
925    /* Verify that we have the minimum number of params */
926
927    if (ParamCount < AcpiGbl_DbCommands[CommandIndex].MinArgs)
928    {
929        AcpiOsPrintf ("%u parameters entered, [%s] requires %u parameters\n",
930            ParamCount, AcpiGbl_DbCommands[CommandIndex].Name,
931            AcpiGbl_DbCommands[CommandIndex].MinArgs);
932
933        AcpiDbDisplayCommandInfo (
934            AcpiGbl_DbCommands[CommandIndex].Name, FALSE);
935        return (AE_CTRL_TRUE);
936    }
937
938    /* Decode and dispatch the command */
939
940    switch (CommandIndex)
941    {
942    case CMD_NULL:
943
944        if (Op)
945        {
946            return (AE_OK);
947        }
948        break;
949
950    case CMD_ALLOCATIONS:
951
952#ifdef ACPI_DBG_TRACK_ALLOCATIONS
953        AcpiUtDumpAllocations ((UINT32) -1, NULL);
954#endif
955        break;
956
957    case CMD_ARGS:
958    case CMD_ARGUMENTS:
959
960        AcpiDbDisplayArguments ();
961        break;
962
963    case CMD_BREAKPOINT:
964
965        AcpiDbSetMethodBreakpoint (AcpiGbl_DbArgs[1], WalkState, Op);
966        break;
967
968    case CMD_BUSINFO:
969
970        AcpiDbGetBusInfo ();
971        break;
972
973    case CMD_CALL:
974
975        AcpiDbSetMethodCallBreakpoint (Op);
976        Status = AE_OK;
977        break;
978
979    case CMD_DEBUG:
980
981        AcpiDbExecute (AcpiGbl_DbArgs[1],
982            &AcpiGbl_DbArgs[2], &AcpiGbl_DbArgTypes[2], EX_SINGLE_STEP);
983        break;
984
985    case CMD_DISASSEMBLE:
986    case CMD_DISASM:
987
988#ifdef ACPI_DISASSEMBLER
989        (void) AcpiDbDisassembleMethod (AcpiGbl_DbArgs[1]);
990#else
991        AcpiOsPrintf ("The AML Disassembler is not configured/present\n");
992#endif
993        break;
994
995    case CMD_DUMP:
996
997        AcpiDbDecodeAndDisplayObject (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
998        break;
999
1000    case CMD_EVALUATE:
1001    case CMD_EXECUTE:
1002
1003        AcpiDbExecute (AcpiGbl_DbArgs[1],
1004            &AcpiGbl_DbArgs[2], &AcpiGbl_DbArgTypes[2], EX_NO_SINGLE_STEP);
1005        break;
1006
1007    case CMD_FIND:
1008
1009        Status = AcpiDbFindNameInNamespace (AcpiGbl_DbArgs[1]);
1010        break;
1011
1012    case CMD_FIELDS:
1013
1014        Status = AcpiUtStrtoul64 (AcpiGbl_DbArgs[1], &Temp64);
1015
1016        if (ACPI_FAILURE (Status) || Temp64 >= ACPI_NUM_PREDEFINED_REGIONS)
1017        {
1018            AcpiOsPrintf (
1019                "Invalid address space ID: must be between 0 and %u inclusive\n",
1020                ACPI_NUM_PREDEFINED_REGIONS - 1);
1021            return (AE_OK);
1022        }
1023
1024        Status = AcpiDbDisplayFields ((UINT32) Temp64);
1025        break;
1026
1027    case CMD_GO:
1028
1029        AcpiGbl_CmSingleStep = FALSE;
1030        return (AE_OK);
1031
1032    case CMD_HANDLERS:
1033
1034        AcpiDbDisplayHandlers ();
1035        break;
1036
1037    case CMD_HELP:
1038    case CMD_HELP2:
1039
1040        AcpiDbDisplayHelp (AcpiGbl_DbArgs[1]);
1041        break;
1042
1043    case CMD_HISTORY:
1044
1045        AcpiDbDisplayHistory ();
1046        break;
1047
1048    case CMD_HISTORY_EXE: /* ! command */
1049
1050        CommandLine = AcpiDbGetFromHistory (AcpiGbl_DbArgs[1]);
1051        if (!CommandLine)
1052        {
1053            return (AE_CTRL_TRUE);
1054        }
1055
1056        Status = AcpiDbCommandDispatch (CommandLine, WalkState, Op);
1057        return (Status);
1058
1059    case CMD_HISTORY_LAST: /* !! command */
1060
1061        CommandLine = AcpiDbGetFromHistory (NULL);
1062        if (!CommandLine)
1063        {
1064            return (AE_CTRL_TRUE);
1065        }
1066
1067        Status = AcpiDbCommandDispatch (CommandLine, WalkState, Op);
1068        return (Status);
1069
1070    case CMD_INFORMATION:
1071
1072        AcpiDbDisplayMethodInfo (Op);
1073        break;
1074
1075    case CMD_INTEGRITY:
1076
1077        AcpiDbCheckIntegrity ();
1078        break;
1079
1080    case CMD_INTO:
1081
1082        if (Op)
1083        {
1084            AcpiGbl_CmSingleStep = TRUE;
1085            return (AE_OK);
1086        }
1087        break;
1088
1089    case CMD_LEVEL:
1090
1091        if (ParamCount == 0)
1092        {
1093            AcpiOsPrintf (
1094                "Current debug level for file output is:    %8.8X\n",
1095                AcpiGbl_DbDebugLevel);
1096            AcpiOsPrintf (
1097                "Current debug level for console output is: %8.8X\n",
1098                AcpiGbl_DbConsoleDebugLevel);
1099        }
1100        else if (ParamCount == 2)
1101        {
1102            Temp = AcpiGbl_DbConsoleDebugLevel;
1103            AcpiGbl_DbConsoleDebugLevel =
1104                strtoul (AcpiGbl_DbArgs[1], NULL, 16);
1105            AcpiOsPrintf (
1106                "Debug Level for console output was %8.8X, now %8.8X\n",
1107                Temp, AcpiGbl_DbConsoleDebugLevel);
1108        }
1109        else
1110        {
1111            Temp = AcpiGbl_DbDebugLevel;
1112            AcpiGbl_DbDebugLevel = strtoul (AcpiGbl_DbArgs[1], NULL, 16);
1113            AcpiOsPrintf (
1114                "Debug Level for file output was %8.8X, now %8.8X\n",
1115                Temp, AcpiGbl_DbDebugLevel);
1116        }
1117        break;
1118
1119    case CMD_LIST:
1120
1121#ifdef ACPI_DISASSEMBLER
1122        AcpiDbDisassembleAml (AcpiGbl_DbArgs[1], Op);
1123#else
1124        AcpiOsPrintf ("The AML Disassembler is not configured/present\n");
1125#endif
1126        break;
1127
1128    case CMD_LOCKS:
1129
1130        AcpiDbDisplayLocks ();
1131        break;
1132
1133    case CMD_LOCALS:
1134
1135        AcpiDbDisplayLocals ();
1136        break;
1137
1138    case CMD_METHODS:
1139
1140        Status = AcpiDbDisplayObjects ("METHOD", AcpiGbl_DbArgs[1]);
1141        break;
1142
1143    case CMD_NAMESPACE:
1144
1145        AcpiDbDumpNamespace (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1146        break;
1147
1148    case CMD_NOTIFY:
1149
1150        Temp = strtoul (AcpiGbl_DbArgs[2], NULL, 0);
1151        AcpiDbSendNotify (AcpiGbl_DbArgs[1], Temp);
1152        break;
1153
1154    case CMD_OBJECTS:
1155
1156        AcpiUtStrupr (AcpiGbl_DbArgs[1]);
1157        Status = AcpiDbDisplayObjects (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1158        break;
1159
1160    case CMD_OSI:
1161
1162        AcpiDbDisplayInterfaces (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1163        break;
1164
1165    case CMD_OWNER:
1166
1167        AcpiDbDumpNamespaceByOwner (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1168        break;
1169
1170    case CMD_PATHS:
1171
1172        AcpiDbDumpNamespacePaths ();
1173        break;
1174
1175    case CMD_PREFIX:
1176
1177        AcpiDbSetScope (AcpiGbl_DbArgs[1]);
1178        break;
1179
1180    case CMD_REFERENCES:
1181
1182        AcpiDbFindReferences (AcpiGbl_DbArgs[1]);
1183        break;
1184
1185    case CMD_RESOURCES:
1186
1187        AcpiDbDisplayResources (AcpiGbl_DbArgs[1]);
1188        break;
1189
1190    case CMD_RESULTS:
1191
1192        AcpiDbDisplayResults ();
1193        break;
1194
1195    case CMD_SET:
1196
1197        AcpiDbSetMethodData (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2],
1198            AcpiGbl_DbArgs[3]);
1199        break;
1200
1201    case CMD_STATS:
1202
1203        Status = AcpiDbDisplayStatistics (AcpiGbl_DbArgs[1]);
1204        break;
1205
1206    case CMD_STOP:
1207
1208        return (AE_NOT_IMPLEMENTED);
1209
1210    case CMD_TABLES:
1211
1212        AcpiDbDisplayTableInfo (AcpiGbl_DbArgs[1]);
1213        break;
1214
1215    case CMD_TEMPLATE:
1216
1217        AcpiDbDisplayTemplate (AcpiGbl_DbArgs[1]);
1218        break;
1219
1220    case CMD_TRACE:
1221
1222        AcpiDbTrace (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2], AcpiGbl_DbArgs[3]);
1223        break;
1224
1225    case CMD_TREE:
1226
1227        AcpiDbDisplayCallingTree ();
1228        break;
1229
1230    case CMD_TYPE:
1231
1232        AcpiDbDisplayObjectType (AcpiGbl_DbArgs[1]);
1233        break;
1234
1235#ifdef ACPI_APPLICATION
1236
1237    /* Hardware simulation commands. */
1238
1239    case CMD_ENABLEACPI:
1240#if (!ACPI_REDUCED_HARDWARE)
1241
1242        Status = AcpiEnable();
1243        if (ACPI_FAILURE(Status))
1244        {
1245            AcpiOsPrintf("AcpiEnable failed (Status=%X)\n", Status);
1246            return (Status);
1247        }
1248#endif /* !ACPI_REDUCED_HARDWARE */
1249        break;
1250
1251    case CMD_EVENT:
1252
1253        AcpiOsPrintf ("Event command not implemented\n");
1254        break;
1255
1256    case CMD_GPE:
1257
1258        AcpiDbGenerateGpe (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1259        break;
1260
1261    case CMD_GPES:
1262
1263        AcpiDbDisplayGpes ();
1264        break;
1265
1266    case CMD_SCI:
1267
1268        AcpiDbGenerateSci ();
1269        break;
1270
1271    case CMD_SLEEP:
1272
1273        Status = AcpiDbSleep (AcpiGbl_DbArgs[1]);
1274        break;
1275
1276    /* File I/O commands. */
1277
1278    case CMD_CLOSE:
1279
1280        AcpiDbCloseDebugFile ();
1281        break;
1282
1283    case CMD_LOAD:
1284        {
1285            ACPI_NEW_TABLE_DESC     *ListHead = NULL;
1286
1287            Status = AcGetAllTablesFromFile (AcpiGbl_DbArgs[1],
1288                ACPI_GET_ALL_TABLES, &ListHead);
1289            if (ACPI_SUCCESS (Status))
1290            {
1291                AcpiDbLoadTables (ListHead);
1292            }
1293        }
1294        break;
1295
1296    case CMD_OPEN:
1297
1298        AcpiDbOpenDebugFile (AcpiGbl_DbArgs[1]);
1299        break;
1300
1301    /* User space commands. */
1302
1303    case CMD_TERMINATE:
1304
1305        AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT);
1306        AcpiUtSubsystemShutdown ();
1307
1308        /*
1309         * TBD: [Restructure] Need some way to re-initialize without
1310         * re-creating the semaphores!
1311         */
1312
1313        AcpiGbl_DbTerminateLoop = TRUE;
1314        /*  AcpiInitialize (NULL);  */
1315        break;
1316
1317    case CMD_BACKGROUND:
1318
1319        AcpiDbCreateExecutionThread (AcpiGbl_DbArgs[1], &AcpiGbl_DbArgs[2],
1320            &AcpiGbl_DbArgTypes[2]);
1321        break;
1322
1323    case CMD_THREADS:
1324
1325        AcpiDbCreateExecutionThreads (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2],
1326            AcpiGbl_DbArgs[3]);
1327        break;
1328
1329    /* Debug test commands. */
1330
1331    case CMD_PREDEFINED:
1332
1333        AcpiDbCheckPredefinedNames ();
1334        break;
1335
1336    case CMD_TEST:
1337
1338        AcpiDbExecuteTest (AcpiGbl_DbArgs[1]);
1339        break;
1340
1341    case CMD_UNLOAD:
1342
1343        AcpiDbUnloadAcpiTable (AcpiGbl_DbArgs[1]);
1344        break;
1345#endif
1346
1347    case CMD_EXIT:
1348    case CMD_QUIT:
1349
1350        if (Op)
1351        {
1352            AcpiOsPrintf ("Method execution terminated\n");
1353            return (AE_CTRL_TERMINATE);
1354        }
1355
1356        if (!AcpiGbl_DbOutputToFile)
1357        {
1358            AcpiDbgLevel = ACPI_DEBUG_DEFAULT;
1359        }
1360
1361#ifdef ACPI_APPLICATION
1362        AcpiDbCloseDebugFile ();
1363#endif
1364        AcpiGbl_DbTerminateLoop = TRUE;
1365        return (AE_CTRL_TERMINATE);
1366
1367    case CMD_NOT_FOUND:
1368    default:
1369
1370        AcpiOsPrintf ("%s: unknown command\n", AcpiGbl_DbArgs[0]);
1371        return (AE_CTRL_TRUE);
1372    }
1373
1374    if (ACPI_SUCCESS (Status))
1375    {
1376        Status = AE_CTRL_TRUE;
1377    }
1378
1379    return (Status);
1380}
1381
1382
1383/*******************************************************************************
1384 *
1385 * FUNCTION:    AcpiDbExecuteThread
1386 *
1387 * PARAMETERS:  Context         - Not used
1388 *
1389 * RETURN:      None
1390 *
1391 * DESCRIPTION: Debugger execute thread. Waits for a command line, then
1392 *              simply dispatches it.
1393 *
1394 ******************************************************************************/
1395
1396void ACPI_SYSTEM_XFACE
1397AcpiDbExecuteThread (
1398    void                    *Context)
1399{
1400
1401    (void) AcpiDbUserCommands ();
1402    AcpiGbl_DbThreadsTerminated = TRUE;
1403}
1404
1405
1406/*******************************************************************************
1407 *
1408 * FUNCTION:    AcpiDbUserCommands
1409 *
1410 * PARAMETERS:  None
1411 *
1412 * RETURN:      None
1413 *
1414 * DESCRIPTION: Command line execution for the AML debugger. Commands are
1415 *              matched and dispatched here.
1416 *
1417 ******************************************************************************/
1418
1419ACPI_STATUS
1420AcpiDbUserCommands (
1421    void)
1422{
1423    ACPI_STATUS             Status = AE_OK;
1424
1425
1426    AcpiOsPrintf ("\n");
1427
1428    /* TBD: [Restructure] Need a separate command line buffer for step mode */
1429
1430    while (!AcpiGbl_DbTerminateLoop)
1431    {
1432        /* Wait the readiness of the command */
1433
1434        Status = AcpiOsWaitCommandReady ();
1435        if (ACPI_FAILURE (Status))
1436        {
1437            break;
1438        }
1439
1440        /* Just call to the command line interpreter */
1441
1442        AcpiGbl_MethodExecuting = FALSE;
1443        AcpiGbl_StepToNextCall = FALSE;
1444
1445        (void) AcpiDbCommandDispatch (AcpiGbl_DbLineBuf, NULL, NULL);
1446
1447        /* Notify the completion of the command */
1448
1449        Status = AcpiOsNotifyCommandComplete ();
1450        if (ACPI_FAILURE (Status))
1451        {
1452            break;
1453        }
1454    }
1455
1456    if (ACPI_FAILURE (Status) && Status != AE_CTRL_TERMINATE)
1457    {
1458        ACPI_EXCEPTION ((AE_INFO, Status, "While parsing command line"));
1459    }
1460    return (Status);
1461}
1462