xref: /netbsd-src/sys/external/bsd/acpica/dist/debugger/dbinput.c (revision cef8759bd76c1b621f8eab8faa6f208faabc2e15)
1 /*******************************************************************************
2  *
3  * Module Name: dbinput - user front-end to the AML debugger
4  *
5  ******************************************************************************/
6 
7 /*
8  * Copyright (C) 2000 - 2020, Intel Corp.
9  * All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions, and the following disclaimer,
16  *    without modification.
17  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18  *    substantially similar to the "NO WARRANTY" disclaimer below
19  *    ("Disclaimer") and any redistribution must be conditioned upon
20  *    including a substantially similar Disclaimer requirement for further
21  *    binary redistribution.
22  * 3. Neither the names of the above-listed copyright holders nor the names
23  *    of any contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
26  * Alternatively, this software may be distributed under the terms of the
27  * GNU General Public License ("GPL") version 2 as published by the Free
28  * Software Foundation.
29  *
30  * NO WARRANTY
31  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41  * POSSIBILITY OF SUCH DAMAGES.
42  */
43 
44 #include "acpi.h"
45 #include "accommon.h"
46 #include "acdebug.h"
47 
48 #ifdef ACPI_APPLICATION
49 #include "acapps.h"
50 #endif
51 
52 #define _COMPONENT          ACPI_CA_DEBUGGER
53         ACPI_MODULE_NAME    ("dbinput")
54 
55 
56 /* Local prototypes */
57 
58 static UINT32
59 AcpiDbGetLine (
60     char                    *InputBuffer);
61 
62 static UINT32
63 AcpiDbMatchCommand (
64     char                    *UserCommand);
65 
66 static void
67 AcpiDbDisplayCommandInfo (
68     const char              *Command,
69     BOOLEAN                 DisplayAll);
70 
71 static void
72 AcpiDbDisplayHelp (
73     char                    *Command);
74 
75 static BOOLEAN
76 AcpiDbMatchCommandHelp (
77     const char                  *Command,
78     const ACPI_DB_COMMAND_HELP  *Help);
79 
80 
81 /*
82  * Top-level debugger commands.
83  *
84  * This list of commands must match the string table below it
85  */
86 enum AcpiExDebuggerCommands
87 {
88     CMD_NOT_FOUND = 0,
89     CMD_NULL,
90     CMD_ALLOCATIONS,
91     CMD_ARGS,
92     CMD_ARGUMENTS,
93     CMD_BREAKPOINT,
94     CMD_BUSINFO,
95     CMD_CALL,
96     CMD_DEBUG,
97     CMD_DISASSEMBLE,
98     CMD_DISASM,
99     CMD_DUMP,
100     CMD_EVALUATE,
101     CMD_EXECUTE,
102     CMD_EXIT,
103     CMD_FIELDS,
104     CMD_FIND,
105     CMD_GO,
106     CMD_HANDLERS,
107     CMD_HELP,
108     CMD_HELP2,
109     CMD_HISTORY,
110     CMD_HISTORY_EXE,
111     CMD_HISTORY_LAST,
112     CMD_INFORMATION,
113     CMD_INTEGRITY,
114     CMD_INTO,
115     CMD_LEVEL,
116     CMD_LIST,
117     CMD_LOCALS,
118     CMD_LOCKS,
119     CMD_METHODS,
120     CMD_NAMESPACE,
121     CMD_NOTIFY,
122     CMD_OBJECTS,
123     CMD_OSI,
124     CMD_OWNER,
125     CMD_PATHS,
126     CMD_PREDEFINED,
127     CMD_PREFIX,
128     CMD_QUIT,
129     CMD_REFERENCES,
130     CMD_RESOURCES,
131     CMD_RESULTS,
132     CMD_SET,
133     CMD_STATS,
134     CMD_STOP,
135     CMD_TABLES,
136     CMD_TEMPLATE,
137     CMD_TRACE,
138     CMD_TREE,
139     CMD_TYPE,
140 #ifdef ACPI_APPLICATION
141     CMD_ENABLEACPI,
142     CMD_EVENT,
143     CMD_GPE,
144     CMD_GPES,
145     CMD_SCI,
146     CMD_SLEEP,
147 
148     CMD_CLOSE,
149     CMD_LOAD,
150     CMD_OPEN,
151     CMD_UNLOAD,
152 
153     CMD_TERMINATE,
154     CMD_BACKGROUND,
155     CMD_THREADS,
156 
157     CMD_TEST,
158 #endif
159 };
160 
161 #define CMD_FIRST_VALID     2
162 
163 
164 /* Second parameter is the required argument count */
165 
166 static const ACPI_DB_COMMAND_INFO   AcpiGbl_DbCommands[] =
167 {
168     {"<NOT FOUND>",  0},
169     {"<NULL>",       0},
170     {"ALLOCATIONS",  0},
171     {"ARGS",         0},
172     {"ARGUMENTS",    0},
173     {"BREAKPOINT",   1},
174     {"BUSINFO",      0},
175     {"CALL",         0},
176     {"DEBUG",        1},
177     {"DISASSEMBLE",  1},
178     {"DISASM",       1},
179     {"DUMP",         1},
180     {"EVALUATE",     1},
181     {"EXECUTE",      1},
182     {"EXIT",         0},
183     {"FIELDS",       1},
184     {"FIND",         1},
185     {"GO",           0},
186     {"HANDLERS",     0},
187     {"HELP",         0},
188     {"?",            0},
189     {"HISTORY",      0},
190     {"!",            1},
191     {"!!",           0},
192     {"INFORMATION",  0},
193     {"INTEGRITY",    0},
194     {"INTO",         0},
195     {"LEVEL",        0},
196     {"LIST",         0},
197     {"LOCALS",       0},
198     {"LOCKS",        0},
199     {"METHODS",      0},
200     {"NAMESPACE",    0},
201     {"NOTIFY",       2},
202     {"OBJECTS",      0},
203     {"OSI",          0},
204     {"OWNER",        1},
205     {"PATHS",        0},
206     {"PREDEFINED",   0},
207     {"PREFIX",       0},
208     {"QUIT",         0},
209     {"REFERENCES",   1},
210     {"RESOURCES",    0},
211     {"RESULTS",      0},
212     {"SET",          3},
213     {"STATS",        1},
214     {"STOP",         0},
215     {"TABLES",       0},
216     {"TEMPLATE",     1},
217     {"TRACE",        1},
218     {"TREE",         0},
219     {"TYPE",         1},
220 #ifdef ACPI_APPLICATION
221     {"ENABLEACPI",   0},
222     {"EVENT",        1},
223     {"GPE",          1},
224     {"GPES",         0},
225     {"SCI",          0},
226     {"SLEEP",        0},
227 
228     {"CLOSE",        0},
229     {"LOAD",         1},
230     {"OPEN",         1},
231     {"UNLOAD",       1},
232 
233     {"TERMINATE",    0},
234     {"BACKGROUND",   1},
235     {"THREADS",      3},
236 
237     {"TEST",         1},
238 #endif
239     {NULL,           0}
240 };
241 
242 /*
243  * Help for all debugger commands. First argument is the number of lines
244  * of help to output for the command.
245  *
246  * Note: Some commands are not supported by the kernel-level version of
247  * the debugger.
248  */
249 static const ACPI_DB_COMMAND_HELP   AcpiGbl_DbCommandHelp[] =
250 {
251     {0, "\nNamespace Access:",                  "\n"},
252     {1, "  Businfo",                            "Display system bus info\n"},
253     {1, "  Disassemble <Method>",               "Disassemble a control method\n"},
254     {1, "  Find <AcpiName> (? is wildcard)",    "Find ACPI name(s) with wildcards\n"},
255     {1, "  Integrity",                          "Validate namespace integrity\n"},
256     {1, "  Methods",                            "Display list of loaded control methods\n"},
257     {1, "  Fields <AddressSpaceId>",            "Display list of loaded field units by space ID\n"},
258     {1, "  Namespace [Object] [Depth]",         "Display loaded namespace tree/subtree\n"},
259     {1, "  Notify <Object> <Value>",            "Send a notification on Object\n"},
260     {1, "  Objects [ObjectType]",               "Display summary of all objects or just given type\n"},
261     {1, "  Owner <OwnerId> [Depth]",            "Display loaded namespace by object owner\n"},
262     {1, "  Paths",                              "Display full pathnames of namespace objects\n"},
263     {1, "  Predefined",                         "Check all predefined names\n"},
264     {1, "  Prefix [<Namepath>]",                "Set or Get current execution prefix\n"},
265     {1, "  References <Addr>",                  "Find all references to object at addr\n"},
266     {1, "  Resources [DeviceName]",             "Display Device resources (no arg = all devices)\n"},
267     {1, "  Set N <NamedObject> <Value>",        "Set value for named integer\n"},
268     {1, "  Template <Object>",                  "Format/dump a Buffer/ResourceTemplate\n"},
269     {1, "  Type <Object>",                      "Display object type\n"},
270 
271     {0, "\nControl Method Execution:",          "\n"},
272     {1, "  Evaluate <Namepath> [Arguments]",    "Evaluate object or control method\n"},
273     {1, "  Execute <Namepath> [Arguments]",     "Synonym for Evaluate\n"},
274 #ifdef ACPI_APPLICATION
275     {1, "  Background <Namepath> [Arguments]",  "Evaluate object/method in a separate thread\n"},
276     {1, "  Thread <Threads><Loops><NamePath>",  "Spawn threads to execute method(s)\n"},
277 #endif
278     {1, "  Debug <Namepath> [Arguments]",       "Single-Step a control method\n"},
279     {7, "  [Arguments] formats:",               "Control method argument formats\n"},
280     {1, "     Hex Integer",                     "Integer\n"},
281     {1, "     \"Ascii String\"",                "String\n"},
282     {1, "     (Hex Byte List)",                 "Buffer\n"},
283     {1, "         (01 42 7A BF)",               "Buffer example (4 bytes)\n"},
284     {1, "     [Package Element List]",          "Package\n"},
285     {1, "         [0x01 0x1234 \"string\"]",    "Package example (3 elements)\n"},
286 
287     {0, "\nMiscellaneous:",                     "\n"},
288     {1, "  Allocations",                        "Display list of current memory allocations\n"},
289     {2, "  Dump <Address>|<Namepath>",          "\n"},
290     {0, "       [Byte|Word|Dword|Qword]",       "Display ACPI objects or memory\n"},
291     {1, "  Handlers",                           "Info about global handlers\n"},
292     {1, "  Help [Command]",                     "This help screen or individual command\n"},
293     {1, "  History",                            "Display command history buffer\n"},
294     {1, "  Level <DebugLevel>] [console]",      "Get/Set debug level for file or console\n"},
295     {1, "  Locks",                              "Current status of internal mutexes\n"},
296     {1, "  Osi [Install|Remove <name>]",        "Display or modify global _OSI list\n"},
297     {1, "  Quit or Exit",                       "Exit this command\n"},
298     {8, "  Stats <SubCommand>",                 "Display namespace and memory statistics\n"},
299     {1, "     Allocations",                     "Display list of current memory allocations\n"},
300     {1, "     Memory",                          "Dump internal memory lists\n"},
301     {1, "     Misc",                            "Namespace search and mutex stats\n"},
302     {1, "     Objects",                         "Summary of namespace objects\n"},
303     {1, "     Sizes",                           "Sizes for each of the internal objects\n"},
304     {1, "     Stack",                           "Display CPU stack usage\n"},
305     {1, "     Tables",                          "Info about current ACPI table(s)\n"},
306     {1, "  Tables",                             "Display info about loaded ACPI tables\n"},
307 #ifdef ACPI_APPLICATION
308     {1, "  Terminate",                          "Delete namespace and all internal objects\n"},
309 #endif
310     {1, "  ! <CommandNumber>",                  "Execute command from history buffer\n"},
311     {1, "  !!",                                 "Execute last command again\n"},
312 
313     {0, "\nMethod and Namespace Debugging:",    "\n"},
314     {5, "  Trace <State> [<Namepath>] [Once]",  "Trace control method execution\n"},
315     {1, "     Enable",                          "Enable all messages\n"},
316     {1, "     Disable",                         "Disable tracing\n"},
317     {1, "     Method",                          "Enable method execution messages\n"},
318     {1, "     Opcode",                          "Enable opcode execution messages\n"},
319     {3, "  Test <TestName>",                    "Invoke a debug test\n"},
320     {1, "     Objects",                         "Read/write/compare all namespace data objects\n"},
321     {1, "     Predefined",                      "Validate all ACPI predefined names (_STA, etc.)\n"},
322     {1, "  Execute predefined",                 "Execute all predefined (public) methods\n"},
323 
324     {0, "\nControl Method Single-Step Execution:","\n"},
325     {1, "  Arguments (or Args)",                "Display method arguments\n"},
326     {1, "  Breakpoint <AmlOffset>",             "Set an AML execution breakpoint\n"},
327     {1, "  Call",                               "Run to next control method invocation\n"},
328     {1, "  Go",                                 "Allow method to run to completion\n"},
329     {1, "  Information",                        "Display info about the current method\n"},
330     {1, "  Into",                               "Step into (not over) a method call\n"},
331     {1, "  List [# of Aml Opcodes]",            "Display method ASL statements\n"},
332     {1, "  Locals",                             "Display method local variables\n"},
333     {1, "  Results",                            "Display method result stack\n"},
334     {1, "  Set <A|L> <#> <Value>",              "Set method data (Arguments/Locals)\n"},
335     {1, "  Stop",                               "Terminate control method\n"},
336     {1, "  Tree",                               "Display control method calling tree\n"},
337     {1, "  <Enter>",                            "Single step next AML opcode (over calls)\n"},
338 
339 #ifdef ACPI_APPLICATION
340     {0, "\nFile Operations:",                   "\n"},
341     {1, "  Close",                              "Close debug output file\n"},
342     {1, "  Load <Input Filename>",              "Load ACPI table from a file\n"},
343     {1, "  Open <Output Filename>",             "Open a file for debug output\n"},
344     {1, "  Unload <Namepath>",                  "Unload an ACPI table via namespace object\n"},
345 
346     {0, "\nHardware Simulation:",               "\n"},
347     {1, "  EnableAcpi",                         "Enable ACPI (hardware) mode\n"},
348     {1, "  Event <F|G> <Value>",                "Generate AcpiEvent (Fixed/GPE)\n"},
349     {1, "  Gpe <GpeNum> [GpeBlockDevice]",      "Simulate a GPE\n"},
350     {1, "  Gpes",                               "Display info on all GPE devices\n"},
351     {1, "  Sci",                                "Generate an SCI\n"},
352     {1, "  Sleep [SleepState]",                 "Simulate sleep/wake sequence(s) (0-5)\n"},
353 #endif
354     {0, NULL, NULL}
355 };
356 
357 
358 /*******************************************************************************
359  *
360  * FUNCTION:    AcpiDbMatchCommandHelp
361  *
362  * PARAMETERS:  Command             - Command string to match
363  *              Help                - Help table entry to attempt match
364  *
365  * RETURN:      TRUE if command matched, FALSE otherwise
366  *
367  * DESCRIPTION: Attempt to match a command in the help table in order to
368  *              print help information for a single command.
369  *
370  ******************************************************************************/
371 
372 static BOOLEAN
373 AcpiDbMatchCommandHelp (
374     const char                  *Command,
375     const ACPI_DB_COMMAND_HELP  *Help)
376 {
377     const char              *Invocation = Help->Invocation;
378     UINT32                  LineCount;
379 
380 
381     /* Valid commands in the help table begin with a couple of spaces */
382 
383     if (*Invocation != ' ')
384     {
385         return (FALSE);
386     }
387 
388     while (*Invocation == ' ')
389     {
390         Invocation++;
391     }
392 
393     /* Match command name (full command or substring) */
394 
395     while ((*Command) && (*Invocation) && (*Invocation != ' '))
396     {
397         if (tolower ((int) *Command) != tolower ((int) *Invocation))
398         {
399             return (FALSE);
400         }
401 
402         Invocation++;
403         Command++;
404     }
405 
406     /* Print the appropriate number of help lines */
407 
408     LineCount = Help->LineCount;
409     while (LineCount)
410     {
411         AcpiOsPrintf ("%-38s : %s", Help->Invocation, Help->Description);
412         Help++;
413         LineCount--;
414     }
415 
416     return (TRUE);
417 }
418 
419 
420 /*******************************************************************************
421  *
422  * FUNCTION:    AcpiDbDisplayCommandInfo
423  *
424  * PARAMETERS:  Command             - Command string to match
425  *              DisplayAll          - Display all matching commands, or just
426  *                                    the first one (substring match)
427  *
428  * RETURN:      None
429  *
430  * DESCRIPTION: Display help information for a Debugger command.
431  *
432  ******************************************************************************/
433 
434 static void
435 AcpiDbDisplayCommandInfo (
436     const char              *Command,
437     BOOLEAN                 DisplayAll)
438 {
439     const ACPI_DB_COMMAND_HELP  *Next;
440     BOOLEAN                     Matched;
441 
442 
443     Next = AcpiGbl_DbCommandHelp;
444     while (Next->Invocation)
445     {
446         Matched = AcpiDbMatchCommandHelp (Command, Next);
447         if (!DisplayAll && Matched)
448         {
449             return;
450         }
451 
452         Next++;
453     }
454 }
455 
456 
457 /*******************************************************************************
458  *
459  * FUNCTION:    AcpiDbDisplayHelp
460  *
461  * PARAMETERS:  Command             - Optional command string to display help.
462  *                                    if not specified, all debugger command
463  *                                    help strings are displayed
464  *
465  * RETURN:      None
466  *
467  * DESCRIPTION: Display help for a single debugger command, or all of them.
468  *
469  ******************************************************************************/
470 
471 static void
472 AcpiDbDisplayHelp (
473     char                    *Command)
474 {
475     const ACPI_DB_COMMAND_HELP  *Next = AcpiGbl_DbCommandHelp;
476 
477 
478     if (!Command)
479     {
480         /* No argument to help, display help for all commands */
481 
482         AcpiOsPrintf ("\nSummary of AML Debugger Commands\n\n");
483 
484         while (Next->Invocation)
485         {
486             AcpiOsPrintf ("%-38s%s", Next->Invocation, Next->Description);
487             Next++;
488         }
489         AcpiOsPrintf ("\n");
490 
491     }
492     else
493     {
494         /* Display help for all commands that match the subtring */
495 
496         AcpiDbDisplayCommandInfo (Command, TRUE);
497     }
498 }
499 
500 
501 /*******************************************************************************
502  *
503  * FUNCTION:    AcpiDbGetNextToken
504  *
505  * PARAMETERS:  String          - Command buffer
506  *              Next            - Return value, end of next token
507  *
508  * RETURN:      Pointer to the start of the next token.
509  *
510  * DESCRIPTION: Command line parsing. Get the next token on the command line
511  *
512  ******************************************************************************/
513 
514 char *
515 AcpiDbGetNextToken (
516     char                    *String,
517     char                    **Next,
518     ACPI_OBJECT_TYPE        *ReturnType)
519 {
520     char                    *Start;
521     UINT32                  Depth;
522     ACPI_OBJECT_TYPE        Type = ACPI_TYPE_INTEGER;
523 
524 
525     /* At end of buffer? */
526 
527     if (!String || !(*String))
528     {
529         return (NULL);
530     }
531 
532     /* Remove any spaces at the beginning, ignore blank lines */
533 
534     while (*String && isspace (*String))
535     {
536         String++;
537     }
538 
539     if (!(*String))
540     {
541         return (NULL);
542     }
543 
544     switch (*String)
545     {
546     case '"':
547 
548         /* This is a quoted string, scan until closing quote */
549 
550         String++;
551         Start = String;
552         Type = ACPI_TYPE_STRING;
553 
554         /* Find end of string */
555 
556         while (*String && (*String != '"'))
557         {
558             String++;
559         }
560         break;
561 
562     case '(':
563 
564         /* This is the start of a buffer, scan until closing paren */
565 
566         String++;
567         Start = String;
568         Type = ACPI_TYPE_BUFFER;
569 
570         /* Find end of buffer */
571 
572         while (*String && (*String != ')'))
573         {
574             String++;
575         }
576         break;
577 
578     case '{':
579 
580         /* This is the start of a field unit, scan until closing brace */
581 
582         String++;
583         Start = String;
584         Type = ACPI_TYPE_FIELD_UNIT;
585 
586         /* Find end of buffer */
587 
588         while (*String && (*String != '}'))
589         {
590             String++;
591         }
592         break;
593 
594     case '[':
595 
596         /* This is the start of a package, scan until closing bracket */
597 
598         String++;
599         Depth = 1;
600         Start = String;
601         Type = ACPI_TYPE_PACKAGE;
602 
603         /* Find end of package (closing bracket) */
604 
605         while (*String)
606         {
607             /* Handle String package elements */
608 
609             if (*String == '"')
610             {
611                 /* Find end of string */
612 
613                 String++;
614                 while (*String && (*String != '"'))
615                 {
616                     String++;
617                 }
618                 if (!(*String))
619                 {
620                     break;
621                 }
622             }
623             else if (*String == '[')
624             {
625                 Depth++;         /* A nested package declaration */
626             }
627             else if (*String == ']')
628             {
629                 Depth--;
630                 if (Depth == 0) /* Found final package closing bracket */
631                 {
632                     break;
633                 }
634             }
635 
636             String++;
637         }
638         break;
639 
640     default:
641 
642         Start = String;
643 
644         /* Find end of token */
645 
646         while (*String && !isspace (*String))
647         {
648             String++;
649         }
650         break;
651     }
652 
653     if (!(*String))
654     {
655         *Next = NULL;
656     }
657     else
658     {
659         *String = 0;
660         *Next = String + 1;
661     }
662 
663     *ReturnType = Type;
664     return (Start);
665 }
666 
667 
668 /*******************************************************************************
669  *
670  * FUNCTION:    AcpiDbGetLine
671  *
672  * PARAMETERS:  InputBuffer         - Command line buffer
673  *
674  * RETURN:      Count of arguments to the command
675  *
676  * DESCRIPTION: Get the next command line from the user. Gets entire line
677  *              up to the next newline
678  *
679  ******************************************************************************/
680 
681 static UINT32
682 AcpiDbGetLine (
683     char                    *InputBuffer)
684 {
685     UINT32                  i;
686     UINT32                  Count;
687     char                    *Next;
688     char                    *This;
689 
690 
691     if (AcpiUtSafeStrcpy (AcpiGbl_DbParsedBuf, sizeof (AcpiGbl_DbParsedBuf),
692         InputBuffer))
693     {
694         AcpiOsPrintf (
695             "Buffer overflow while parsing input line (max %u characters)\n",
696             (UINT32) sizeof (AcpiGbl_DbParsedBuf));
697         return (0);
698     }
699 
700     This = AcpiGbl_DbParsedBuf;
701     for (i = 0; i < ACPI_DEBUGGER_MAX_ARGS; i++)
702     {
703         AcpiGbl_DbArgs[i] = AcpiDbGetNextToken (This, &Next,
704             &AcpiGbl_DbArgTypes[i]);
705         if (!AcpiGbl_DbArgs[i])
706         {
707             break;
708         }
709 
710         This = Next;
711     }
712 
713     /* Uppercase the actual command */
714 
715     AcpiUtStrupr (AcpiGbl_DbArgs[0]);
716 
717     Count = i;
718     if (Count)
719     {
720         Count--;  /* Number of args only */
721     }
722 
723     return (Count);
724 }
725 
726 
727 /*******************************************************************************
728  *
729  * FUNCTION:    AcpiDbMatchCommand
730  *
731  * PARAMETERS:  UserCommand             - User command line
732  *
733  * RETURN:      Index into command array, -1 if not found
734  *
735  * DESCRIPTION: Search command array for a command match
736  *
737  ******************************************************************************/
738 
739 static UINT32
740 AcpiDbMatchCommand (
741     char                    *UserCommand)
742 {
743     UINT32                  i;
744 
745 
746     if (!UserCommand || UserCommand[0] == 0)
747     {
748         return (CMD_NULL);
749     }
750 
751     for (i = CMD_FIRST_VALID; AcpiGbl_DbCommands[i].Name; i++)
752     {
753         if (strstr (
754             ACPI_CAST_PTR (char, AcpiGbl_DbCommands[i].Name), UserCommand) ==
755             AcpiGbl_DbCommands[i].Name)
756         {
757             return (i);
758         }
759     }
760 
761     /* Command not recognized */
762 
763     return (CMD_NOT_FOUND);
764 }
765 
766 
767 /*******************************************************************************
768  *
769  * FUNCTION:    AcpiDbCommandDispatch
770  *
771  * PARAMETERS:  InputBuffer         - Command line buffer
772  *              WalkState           - Current walk
773  *              Op                  - Current (executing) parse op
774  *
775  * RETURN:      Status
776  *
777  * DESCRIPTION: Command dispatcher.
778  *
779  ******************************************************************************/
780 
781 ACPI_STATUS
782 AcpiDbCommandDispatch (
783     char                    *InputBuffer,
784     ACPI_WALK_STATE         *WalkState,
785     ACPI_PARSE_OBJECT       *Op)
786 {
787     UINT32                  Temp;
788     UINT64                  Temp64;
789     UINT32                  CommandIndex;
790     UINT32                  ParamCount;
791     char                    *CommandLine;
792     ACPI_STATUS             Status = AE_CTRL_TRUE;
793 
794 
795     /* If AcpiTerminate has been called, terminate this thread */
796 
797     if (AcpiGbl_DbTerminateLoop)
798     {
799         return (AE_CTRL_TERMINATE);
800     }
801 
802     /* Find command and add to the history buffer */
803 
804     ParamCount = AcpiDbGetLine (InputBuffer);
805     CommandIndex = AcpiDbMatchCommand (AcpiGbl_DbArgs[0]);
806 
807     /*
808      * We don't want to add the !! command to the history buffer. It
809      * would cause an infinite loop because it would always be the
810      * previous command.
811      */
812     if (CommandIndex != CMD_HISTORY_LAST)
813     {
814         AcpiDbAddToHistory (InputBuffer);
815     }
816 
817     /* Verify that we have the minimum number of params */
818 
819     if (ParamCount < AcpiGbl_DbCommands[CommandIndex].MinArgs)
820     {
821         AcpiOsPrintf ("%u parameters entered, [%s] requires %u parameters\n",
822             ParamCount, AcpiGbl_DbCommands[CommandIndex].Name,
823             AcpiGbl_DbCommands[CommandIndex].MinArgs);
824 
825         AcpiDbDisplayCommandInfo (
826             AcpiGbl_DbCommands[CommandIndex].Name, FALSE);
827         return (AE_CTRL_TRUE);
828     }
829 
830     /* Decode and dispatch the command */
831 
832     switch (CommandIndex)
833     {
834     case CMD_NULL:
835 
836         if (Op)
837         {
838             return (AE_OK);
839         }
840         break;
841 
842     case CMD_ALLOCATIONS:
843 
844 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
845         AcpiUtDumpAllocations ((UINT32) -1, NULL);
846 #endif
847         break;
848 
849     case CMD_ARGS:
850     case CMD_ARGUMENTS:
851 
852         AcpiDbDisplayArguments ();
853         break;
854 
855     case CMD_BREAKPOINT:
856 
857         AcpiDbSetMethodBreakpoint (AcpiGbl_DbArgs[1], WalkState, Op);
858         break;
859 
860     case CMD_BUSINFO:
861 
862         AcpiDbGetBusInfo ();
863         break;
864 
865     case CMD_CALL:
866 
867         AcpiDbSetMethodCallBreakpoint (Op);
868         Status = AE_OK;
869         break;
870 
871     case CMD_DEBUG:
872 
873         AcpiDbExecute (AcpiGbl_DbArgs[1],
874             &AcpiGbl_DbArgs[2], &AcpiGbl_DbArgTypes[2], EX_SINGLE_STEP);
875         break;
876 
877     case CMD_DISASSEMBLE:
878     case CMD_DISASM:
879 
880 #ifdef ACPI_DISASSEMBLER
881         (void) AcpiDbDisassembleMethod (AcpiGbl_DbArgs[1]);
882 #else
883         AcpiOsPrintf ("The AML Disassembler is not configured/present\n");
884 #endif
885         break;
886 
887     case CMD_DUMP:
888 
889         AcpiDbDecodeAndDisplayObject (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
890         break;
891 
892     case CMD_EVALUATE:
893     case CMD_EXECUTE:
894 
895         AcpiDbExecute (AcpiGbl_DbArgs[1],
896             &AcpiGbl_DbArgs[2], &AcpiGbl_DbArgTypes[2], EX_NO_SINGLE_STEP);
897         break;
898 
899     case CMD_FIND:
900 
901         Status = AcpiDbFindNameInNamespace (AcpiGbl_DbArgs[1]);
902         break;
903 
904     case CMD_FIELDS:
905 
906         Status = AcpiUtStrtoul64 (AcpiGbl_DbArgs[1], &Temp64);
907 
908         if (ACPI_FAILURE (Status) || Temp64 >= ACPI_NUM_PREDEFINED_REGIONS)
909         {
910             AcpiOsPrintf (
911                 "Invalid address space ID: must be between 0 and %u inclusive\n",
912                 ACPI_NUM_PREDEFINED_REGIONS - 1);
913             return (AE_OK);
914         }
915 
916         Status = AcpiDbDisplayFields ((UINT32) Temp64);
917         break;
918 
919     case CMD_GO:
920 
921         AcpiGbl_CmSingleStep = FALSE;
922         return (AE_OK);
923 
924     case CMD_HANDLERS:
925 
926         AcpiDbDisplayHandlers ();
927         break;
928 
929     case CMD_HELP:
930     case CMD_HELP2:
931 
932         AcpiDbDisplayHelp (AcpiGbl_DbArgs[1]);
933         break;
934 
935     case CMD_HISTORY:
936 
937         AcpiDbDisplayHistory ();
938         break;
939 
940     case CMD_HISTORY_EXE: /* ! command */
941 
942         CommandLine = AcpiDbGetFromHistory (AcpiGbl_DbArgs[1]);
943         if (!CommandLine)
944         {
945             return (AE_CTRL_TRUE);
946         }
947 
948         Status = AcpiDbCommandDispatch (CommandLine, WalkState, Op);
949         return (Status);
950 
951     case CMD_HISTORY_LAST: /* !! command */
952 
953         CommandLine = AcpiDbGetFromHistory (NULL);
954         if (!CommandLine)
955         {
956             return (AE_CTRL_TRUE);
957         }
958 
959         Status = AcpiDbCommandDispatch (CommandLine, WalkState, Op);
960         return (Status);
961 
962     case CMD_INFORMATION:
963 
964         AcpiDbDisplayMethodInfo (Op);
965         break;
966 
967     case CMD_INTEGRITY:
968 
969         AcpiDbCheckIntegrity ();
970         break;
971 
972     case CMD_INTO:
973 
974         if (Op)
975         {
976             AcpiGbl_CmSingleStep = TRUE;
977             return (AE_OK);
978         }
979         break;
980 
981     case CMD_LEVEL:
982 
983         if (ParamCount == 0)
984         {
985             AcpiOsPrintf (
986                 "Current debug level for file output is:    %8.8X\n",
987                 AcpiGbl_DbDebugLevel);
988             AcpiOsPrintf (
989                 "Current debug level for console output is: %8.8X\n",
990                 AcpiGbl_DbConsoleDebugLevel);
991         }
992         else if (ParamCount == 2)
993         {
994             Temp = AcpiGbl_DbConsoleDebugLevel;
995             AcpiGbl_DbConsoleDebugLevel =
996                 strtoul (AcpiGbl_DbArgs[1], NULL, 16);
997             AcpiOsPrintf (
998                 "Debug Level for console output was %8.8X, now %8.8X\n",
999                 Temp, AcpiGbl_DbConsoleDebugLevel);
1000         }
1001         else
1002         {
1003             Temp = AcpiGbl_DbDebugLevel;
1004             AcpiGbl_DbDebugLevel = strtoul (AcpiGbl_DbArgs[1], NULL, 16);
1005             AcpiOsPrintf (
1006                 "Debug Level for file output was %8.8X, now %8.8X\n",
1007                 Temp, AcpiGbl_DbDebugLevel);
1008         }
1009         break;
1010 
1011     case CMD_LIST:
1012 
1013 #ifdef ACPI_DISASSEMBLER
1014         AcpiDbDisassembleAml (AcpiGbl_DbArgs[1], Op);
1015 #else
1016         AcpiOsPrintf ("The AML Disassembler is not configured/present\n");
1017 #endif
1018         break;
1019 
1020     case CMD_LOCKS:
1021 
1022         AcpiDbDisplayLocks ();
1023         break;
1024 
1025     case CMD_LOCALS:
1026 
1027         AcpiDbDisplayLocals ();
1028         break;
1029 
1030     case CMD_METHODS:
1031         Status = AcpiDbDisplayObjects (__UNCONST("METHOD"), AcpiGbl_DbArgs[1]);
1032         break;
1033 
1034     case CMD_NAMESPACE:
1035 
1036         AcpiDbDumpNamespace (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1037         break;
1038 
1039     case CMD_NOTIFY:
1040 
1041         Temp = strtoul (AcpiGbl_DbArgs[2], NULL, 0);
1042         AcpiDbSendNotify (AcpiGbl_DbArgs[1], Temp);
1043         break;
1044 
1045     case CMD_OBJECTS:
1046 
1047         AcpiUtStrupr (AcpiGbl_DbArgs[1]);
1048         Status = AcpiDbDisplayObjects (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1049         break;
1050 
1051     case CMD_OSI:
1052 
1053         AcpiDbDisplayInterfaces (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1054         break;
1055 
1056     case CMD_OWNER:
1057 
1058         AcpiDbDumpNamespaceByOwner (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1059         break;
1060 
1061     case CMD_PATHS:
1062 
1063         AcpiDbDumpNamespacePaths ();
1064         break;
1065 
1066     case CMD_PREFIX:
1067 
1068         AcpiDbSetScope (AcpiGbl_DbArgs[1]);
1069         break;
1070 
1071     case CMD_REFERENCES:
1072 
1073         AcpiDbFindReferences (AcpiGbl_DbArgs[1]);
1074         break;
1075 
1076     case CMD_RESOURCES:
1077 
1078         AcpiDbDisplayResources (AcpiGbl_DbArgs[1]);
1079         break;
1080 
1081     case CMD_RESULTS:
1082 
1083         AcpiDbDisplayResults ();
1084         break;
1085 
1086     case CMD_SET:
1087 
1088         AcpiDbSetMethodData (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2],
1089             AcpiGbl_DbArgs[3]);
1090         break;
1091 
1092     case CMD_STATS:
1093 
1094         Status = AcpiDbDisplayStatistics (AcpiGbl_DbArgs[1]);
1095         break;
1096 
1097     case CMD_STOP:
1098 
1099         return (AE_NOT_IMPLEMENTED);
1100 
1101     case CMD_TABLES:
1102 
1103         AcpiDbDisplayTableInfo (AcpiGbl_DbArgs[1]);
1104         break;
1105 
1106     case CMD_TEMPLATE:
1107 
1108         AcpiDbDisplayTemplate (AcpiGbl_DbArgs[1]);
1109         break;
1110 
1111     case CMD_TRACE:
1112 
1113         AcpiDbTrace (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2], AcpiGbl_DbArgs[3]);
1114         break;
1115 
1116     case CMD_TREE:
1117 
1118         AcpiDbDisplayCallingTree ();
1119         break;
1120 
1121     case CMD_TYPE:
1122 
1123         AcpiDbDisplayObjectType (AcpiGbl_DbArgs[1]);
1124         break;
1125 
1126 #ifdef ACPI_APPLICATION
1127 
1128     /* Hardware simulation commands. */
1129 
1130     case CMD_ENABLEACPI:
1131 #if (!ACPI_REDUCED_HARDWARE)
1132 
1133         Status = AcpiEnable();
1134         if (ACPI_FAILURE(Status))
1135         {
1136             AcpiOsPrintf("AcpiEnable failed (Status=%X)\n", Status);
1137             return (Status);
1138         }
1139 #endif /* !ACPI_REDUCED_HARDWARE */
1140         break;
1141 
1142     case CMD_EVENT:
1143 
1144         AcpiOsPrintf ("Event command not implemented\n");
1145         break;
1146 
1147     case CMD_GPE:
1148 
1149         AcpiDbGenerateGpe (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1150         break;
1151 
1152     case CMD_GPES:
1153 
1154         AcpiDbDisplayGpes ();
1155         break;
1156 
1157     case CMD_SCI:
1158 
1159         AcpiDbGenerateSci ();
1160         break;
1161 
1162     case CMD_SLEEP:
1163 
1164         Status = AcpiDbSleep (AcpiGbl_DbArgs[1]);
1165         break;
1166 
1167     /* File I/O commands. */
1168 
1169     case CMD_CLOSE:
1170 
1171         AcpiDbCloseDebugFile ();
1172         break;
1173 
1174     case CMD_LOAD:
1175         {
1176             ACPI_NEW_TABLE_DESC     *ListHead = NULL;
1177 
1178             Status = AcGetAllTablesFromFile (AcpiGbl_DbArgs[1],
1179                 ACPI_GET_ALL_TABLES, &ListHead);
1180             if (ACPI_SUCCESS (Status))
1181             {
1182                 AcpiDbLoadTables (ListHead);
1183             }
1184         }
1185         break;
1186 
1187     case CMD_OPEN:
1188 
1189         AcpiDbOpenDebugFile (AcpiGbl_DbArgs[1]);
1190         break;
1191 
1192     /* User space commands. */
1193 
1194     case CMD_TERMINATE:
1195 
1196         AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT);
1197         AcpiUtSubsystemShutdown ();
1198 
1199         /*
1200          * TBD: [Restructure] Need some way to re-initialize without
1201          * re-creating the semaphores!
1202          */
1203 
1204         AcpiGbl_DbTerminateLoop = TRUE;
1205         /*  AcpiInitialize (NULL);  */
1206         break;
1207 
1208     case CMD_BACKGROUND:
1209 
1210         AcpiDbCreateExecutionThread (AcpiGbl_DbArgs[1], &AcpiGbl_DbArgs[2],
1211             &AcpiGbl_DbArgTypes[2]);
1212         break;
1213 
1214     case CMD_THREADS:
1215 
1216         AcpiDbCreateExecutionThreads (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2],
1217             AcpiGbl_DbArgs[3]);
1218         break;
1219 
1220     /* Debug test commands. */
1221 
1222     case CMD_PREDEFINED:
1223 
1224         AcpiDbCheckPredefinedNames ();
1225         break;
1226 
1227     case CMD_TEST:
1228 
1229         AcpiDbExecuteTest (AcpiGbl_DbArgs[1]);
1230         break;
1231 
1232     case CMD_UNLOAD:
1233 
1234         AcpiDbUnloadAcpiTable (AcpiGbl_DbArgs[1]);
1235         break;
1236 #endif
1237 
1238     case CMD_EXIT:
1239     case CMD_QUIT:
1240 
1241         if (Op)
1242         {
1243             AcpiOsPrintf ("Method execution terminated\n");
1244             return (AE_CTRL_TERMINATE);
1245         }
1246 
1247         if (!AcpiGbl_DbOutputToFile)
1248         {
1249             AcpiDbgLevel = ACPI_DEBUG_DEFAULT;
1250         }
1251 
1252 #ifdef ACPI_APPLICATION
1253         AcpiDbCloseDebugFile ();
1254 #endif
1255         AcpiGbl_DbTerminateLoop = TRUE;
1256         return (AE_CTRL_TERMINATE);
1257 
1258     case CMD_NOT_FOUND:
1259     default:
1260 
1261         AcpiOsPrintf ("%s: unknown command\n", AcpiGbl_DbArgs[0]);
1262         return (AE_CTRL_TRUE);
1263     }
1264 
1265     if (ACPI_SUCCESS (Status))
1266     {
1267         Status = AE_CTRL_TRUE;
1268     }
1269 
1270     return (Status);
1271 }
1272 
1273 
1274 /*******************************************************************************
1275  *
1276  * FUNCTION:    AcpiDbExecuteThread
1277  *
1278  * PARAMETERS:  Context         - Not used
1279  *
1280  * RETURN:      None
1281  *
1282  * DESCRIPTION: Debugger execute thread. Waits for a command line, then
1283  *              simply dispatches it.
1284  *
1285  ******************************************************************************/
1286 
1287 void ACPI_SYSTEM_XFACE
1288 AcpiDbExecuteThread (
1289     void                    *Context)
1290 {
1291 
1292     (void) AcpiDbUserCommands ();
1293     AcpiGbl_DbThreadsTerminated = TRUE;
1294 }
1295 
1296 
1297 /*******************************************************************************
1298  *
1299  * FUNCTION:    AcpiDbUserCommands
1300  *
1301  * PARAMETERS:  None
1302  *
1303  * RETURN:      None
1304  *
1305  * DESCRIPTION: Command line execution for the AML debugger. Commands are
1306  *              matched and dispatched here.
1307  *
1308  ******************************************************************************/
1309 
1310 ACPI_STATUS
1311 AcpiDbUserCommands (
1312     void)
1313 {
1314     ACPI_STATUS             Status = AE_OK;
1315 
1316 
1317     AcpiOsPrintf ("\n");
1318 
1319     /* TBD: [Restructure] Need a separate command line buffer for step mode */
1320 
1321     while (!AcpiGbl_DbTerminateLoop)
1322     {
1323         /* Wait the readiness of the command */
1324 
1325         Status = AcpiOsWaitCommandReady ();
1326         if (ACPI_FAILURE (Status))
1327         {
1328             break;
1329         }
1330 
1331         /* Just call to the command line interpreter */
1332 
1333         AcpiGbl_MethodExecuting = FALSE;
1334         AcpiGbl_StepToNextCall = FALSE;
1335 
1336         (void) AcpiDbCommandDispatch (AcpiGbl_DbLineBuf, NULL, NULL);
1337 
1338         /* Notify the completion of the command */
1339 
1340         Status = AcpiOsNotifyCommandComplete ();
1341         if (ACPI_FAILURE (Status))
1342         {
1343             break;
1344         }
1345     }
1346 
1347     if (ACPI_FAILURE (Status) && Status != AE_CTRL_TERMINATE)
1348     {
1349         ACPI_EXCEPTION ((AE_INFO, Status, "While parsing command line"));
1350     }
1351     return (Status);
1352 }
1353