1 /*******************************************************************************
2  *
3  * Module Name: dbinput - user front-end to the AML debugger
4  *
5  ******************************************************************************/
6 
7 /*
8  * Copyright (C) 2000 - 2015, 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 
49 #ifdef ACPI_DEBUGGER
50 
51 #define _COMPONENT          ACPI_CA_DEBUGGER
52         ACPI_MODULE_NAME    ("dbinput")
53 
54 /* Local prototypes */
55 
56 static UINT32
57 AcpiDbGetLine (
58     char                    *InputBuffer);
59 
60 static UINT32
61 AcpiDbMatchCommand (
62     char                    *UserCommand);
63 
64 static void
65 AcpiDbSingleThread (
66     void);
67 
68 static void
69 AcpiDbDisplayCommandInfo (
70     char                    *Command,
71     BOOLEAN                 DisplayAll);
72 
73 static void
74 AcpiDbDisplayHelp (
75     char                    *Command);
76 
77 static BOOLEAN
78 AcpiDbMatchCommandHelp (
79     char                        *Command,
80     const ACPI_DB_COMMAND_HELP  *Help);
81 
82 
83 /*
84  * Top-level debugger commands.
85  *
86  * This list of commands must match the string table below it
87  */
88 enum AcpiExDebuggerCommands
89 {
90     CMD_NOT_FOUND = 0,
91     CMD_NULL,
92     CMD_ALLOCATIONS,
93     CMD_ARGS,
94     CMD_ARGUMENTS,
95     CMD_BREAKPOINT,
96     CMD_BUSINFO,
97     CMD_CALL,
98     CMD_CLOSE,
99     CMD_DEBUG,
100     CMD_DISASSEMBLE,
101     CMD_DISASM,
102     CMD_DUMP,
103     CMD_ENABLEACPI,
104     CMD_EVALUATE,
105     CMD_EVENT,
106     CMD_EXECUTE,
107     CMD_EXIT,
108     CMD_FIND,
109     CMD_GO,
110     CMD_GPE,
111     CMD_GPES,
112     CMD_HANDLERS,
113     CMD_HELP,
114     CMD_HELP2,
115     CMD_HISTORY,
116     CMD_HISTORY_EXE,
117     CMD_HISTORY_LAST,
118     CMD_INFORMATION,
119     CMD_INTEGRITY,
120     CMD_INTO,
121     CMD_LEVEL,
122     CMD_LIST,
123     CMD_LOAD,
124     CMD_LOCALS,
125     CMD_LOCKS,
126     CMD_METHODS,
127     CMD_NAMESPACE,
128     CMD_NOTIFY,
129     CMD_OBJECTS,
130     CMD_OPEN,
131     CMD_OSI,
132     CMD_OWNER,
133     CMD_PATHS,
134     CMD_PREDEFINED,
135     CMD_PREFIX,
136     CMD_QUIT,
137     CMD_REFERENCES,
138     CMD_RESOURCES,
139     CMD_RESULTS,
140     CMD_SCI,
141     CMD_SET,
142     CMD_SLEEP,
143     CMD_STATS,
144     CMD_STOP,
145     CMD_TABLES,
146     CMD_TEMPLATE,
147     CMD_TERMINATE,
148     CMD_TEST,
149     CMD_THREADS,
150     CMD_TRACE,
151     CMD_TREE,
152     CMD_TYPE,
153     CMD_UNLOAD
154 };
155 
156 #define CMD_FIRST_VALID     2
157 
158 
159 /* Second parameter is the required argument count */
160 
161 static const ACPI_DB_COMMAND_INFO   AcpiGbl_DbCommands[] =
162 {
163     {"<NOT FOUND>",  0},
164     {"<NULL>",       0},
165     {"ALLOCATIONS",  0},
166     {"ARGS",         0},
167     {"ARGUMENTS",    0},
168     {"BREAKPOINT",   1},
169     {"BUSINFO",      0},
170     {"CALL",         0},
171     {"CLOSE",        0},
172     {"DEBUG",        1},
173     {"DISASSEMBLE",  1},
174     {"DISASM",       1},
175     {"DUMP",         1},
176     {"ENABLEACPI",   0},
177     {"EVALUATE",     1},
178     {"EVENT",        1},
179     {"EXECUTE",      1},
180     {"EXIT",         0},
181     {"FIND",         1},
182     {"GO",           0},
183     {"GPE",          1},
184     {"GPES",         0},
185     {"HANDLERS",     0},
186     {"HELP",         0},
187     {"?",            0},
188     {"HISTORY",      0},
189     {"!",            1},
190     {"!!",           0},
191     {"INFORMATION",  0},
192     {"INTEGRITY",    0},
193     {"INTO",         0},
194     {"LEVEL",        0},
195     {"LIST",         0},
196     {"LOAD",         1},
197     {"LOCALS",       0},
198     {"LOCKS",        0},
199     {"METHODS",      0},
200     {"NAMESPACE",    0},
201     {"NOTIFY",       2},
202     {"OBJECTS",      1},
203     {"OPEN",         1},
204     {"OSI",          0},
205     {"OWNER",        1},
206     {"PATHS",        0},
207     {"PREDEFINED",   0},
208     {"PREFIX",       0},
209     {"QUIT",         0},
210     {"REFERENCES",   1},
211     {"RESOURCES",    0},
212     {"RESULTS",      0},
213     {"SCI",          0},
214     {"SET",          3},
215     {"SLEEP",        0},
216     {"STATS",        1},
217     {"STOP",         0},
218     {"TABLES",       0},
219     {"TEMPLATE",     1},
220     {"TERMINATE",    0},
221     {"TEST",        1},
222     {"THREADS",      3},
223     {"TRACE",        1},
224     {"TREE",         0},
225     {"TYPE",         1},
226     {"UNLOAD",       1},
227     {NULL,           0}
228 };
229 
230 /*
231  * Help for all debugger commands. First argument is the number of lines
232  * of help to output for the command.
233  */
234 static const ACPI_DB_COMMAND_HELP   AcpiGbl_DbCommandHelp[] =
235 {
236     {0, "\nGeneral-Purpose Commands:",         "\n"},
237     {1, "  Allocations",                       "Display list of current memory allocations\n"},
238     {2, "  Dump <Address>|<Namepath>",         "\n"},
239     {0, "       [Byte|Word|Dword|Qword]",      "Display ACPI objects or memory\n"},
240     {1, "  EnableAcpi",                        "Enable ACPI (hardware) mode\n"},
241     {1, "  Handlers",                          "Info about global handlers\n"},
242     {1, "  Help [Command]",                    "This help screen or individual command\n"},
243     {1, "  History",                           "Display command history buffer\n"},
244     {1, "  Level <DebugLevel>] [console]",     "Get/Set debug level for file or console\n"},
245     {1, "  Locks",                             "Current status of internal mutexes\n"},
246     {1, "  Osi [Install|Remove <name>]",       "Display or modify global _OSI list\n"},
247     {1, "  Quit or Exit",                      "Exit this command\n"},
248     {8, "  Stats <SubCommand>",                "Display namespace and memory statistics\n"},
249     {1, "     Allocations",                    "Display list of current memory allocations\n"},
250     {1, "     Memory",                         "Dump internal memory lists\n"},
251     {1, "     Misc",                           "Namespace search and mutex stats\n"},
252     {1, "     Objects",                        "Summary of namespace objects\n"},
253     {1, "     Sizes",                          "Sizes for each of the internal objects\n"},
254     {1, "     Stack",                          "Display CPU stack usage\n"},
255     {1, "     Tables",                         "Info about current ACPI table(s)\n"},
256     {1, "  Tables",                            "Display info about loaded ACPI tables\n"},
257     {1, "  Unload <Namepath>",                 "Unload an ACPI table via namespace object\n"},
258     {1, "  ! <CommandNumber>",                 "Execute command from history buffer\n"},
259     {1, "  !!",                                "Execute last command again\n"},
260 
261     {0, "\nNamespace Access Commands:",        "\n"},
262     {1, "  Businfo",                           "Display system bus info\n"},
263     {1, "  Disassemble <Method>",              "Disassemble a control method\n"},
264     {1, "  Find <AcpiName> (? is wildcard)",   "Find ACPI name(s) with wildcards\n"},
265     {1, "  Integrity",                         "Validate namespace integrity\n"},
266     {1, "  Methods",                           "Display list of loaded control methods\n"},
267     {1, "  Namespace [Object] [Depth]",        "Display loaded namespace tree/subtree\n"},
268     {1, "  Notify <Object> <Value>",           "Send a notification on Object\n"},
269     {1, "  Objects <ObjectType>",              "Display all objects of the given type\n"},
270     {1, "  Owner <OwnerId> [Depth]",           "Display loaded namespace by object owner\n"},
271     {1, "  Paths",                             "Display full pathnames of namespace objects\n"},
272     {1, "  Predefined",                        "Check all predefined names\n"},
273     {1, "  Prefix [<NamePath>]",               "Set or Get current execution prefix\n"},
274     {1, "  References <Addr>",                 "Find all references to object at addr\n"},
275     {1, "  Resources [DeviceName]",            "Display Device resources (no arg = all devices)\n"},
276     {1, "  Set N <NamedObject> <Value>",       "Set value for named integer\n"},
277     {1, "  Template <Object>",                 "Format/dump a Buffer/ResourceTemplate\n"},
278     {1, "  Terminate",                         "Delete namespace and all internal objects\n"},
279     {1, "  Type <Object>",                     "Display object type\n"},
280 
281     {0, "\nControl Method Execution Commands:","\n"},
282     {1, "  Arguments (or Args)",               "Display method arguments\n"},
283     {1, "  Breakpoint <AmlOffset>",            "Set an AML execution breakpoint\n"},
284     {1, "  Call",                              "Run to next control method invocation\n"},
285     {1, "  Debug <Namepath> [Arguments]",      "Single Step a control method\n"},
286     {6, "  Evaluate",                          "Synonym for Execute\n"},
287     {5, "  Execute <Namepath> [Arguments]",    "Execute control method\n"},
288     {1, "     Hex Integer",                    "Integer method argument\n"},
289     {1, "     \"Ascii String\"",               "String method argument\n"},
290     {1, "     (Hex Byte List)",                "Buffer method argument\n"},
291     {1, "     [Package Element List]",         "Package method argument\n"},
292     {1, "  Go",                                "Allow method to run to completion\n"},
293     {1, "  Information",                       "Display info about the current method\n"},
294     {1, "  Into",                              "Step into (not over) a method call\n"},
295     {1, "  List [# of Aml Opcodes]",           "Display method ASL statements\n"},
296     {1, "  Locals",                            "Display method local variables\n"},
297     {1, "  Results",                           "Display method result stack\n"},
298     {1, "  Set <A|L> <#> <Value>",             "Set method data (Arguments/Locals)\n"},
299     {1, "  Stop",                              "Terminate control method\n"},
300     {1, "  Thread <Threads><Loops><NamePath>", "Spawn threads to execute method(s)\n"},
301     {1, "  Trace <method name>",               "Trace method execution\n"},
302     {1, "  Tree",                              "Display control method calling tree\n"},
303     {1, "  <Enter>",                           "Single step next AML opcode (over calls)\n"},
304 
305     {0, "\nHardware Related Commands:",         "\n"},
306     {1, "  Event <F|G> <Value>",               "Generate AcpiEvent (Fixed/GPE)\n"},
307     {1, "  Gpe <GpeNum> [GpeBlockDevice]",     "Simulate a GPE\n"},
308     {1, "  Gpes",                              "Display info on all GPEs\n"},
309     {1, "  Sci",                               "Generate an SCI\n"},
310     {1, "  Sleep [SleepState]",                "Simulate sleep/wake sequence(s) (0-5)\n"},
311 
312     {0, "\nFile I/O Commands:",                "\n"},
313     {1, "  Close",                             "Close debug output file\n"},
314     {1, "  Load <Input Filename>",             "Load ACPI table from a file\n"},
315     {1, "  Open <Output Filename>",            "Open a file for debug output\n"},
316 
317     {0, "\nDebug Test Commands:",              "\n"},
318     {3, "  Test <TestName>",                   "Invoke a debug test\n"},
319     {1, "     Objects",                        "Read/write/compare all namespace data objects\n"},
320     {1, "     Predefined",                     "Execute all ACPI predefined names (_STA, etc.)\n"},
321     {0, NULL, NULL}
322 };
323 
324 
325 /*******************************************************************************
326  *
327  * FUNCTION:    AcpiDbMatchCommandHelp
328  *
329  * PARAMETERS:  Command             - Command string to match
330  *              Help                - Help table entry to attempt match
331  *
332  * RETURN:      TRUE if command matched, FALSE otherwise
333  *
334  * DESCRIPTION: Attempt to match a command in the help table in order to
335  *              print help information for a single command.
336  *
337  ******************************************************************************/
338 
339 static BOOLEAN
340 AcpiDbMatchCommandHelp (
341     char                        *Command,
342     const ACPI_DB_COMMAND_HELP  *Help)
343 {
344     char                    *Invocation = Help->Invocation;
345     UINT32                  LineCount;
346 
347 
348     /* Valid commands in the help table begin with a couple of spaces */
349 
350     if (*Invocation != ' ')
351     {
352         return (FALSE);
353     }
354 
355     while (*Invocation == ' ')
356     {
357         Invocation++;
358     }
359 
360     /* Match command name (full command or substring) */
361 
362     while ((*Command) && (*Invocation) && (*Invocation != ' '))
363     {
364         if (tolower ((int) *Command) != tolower ((int) *Invocation))
365         {
366             return (FALSE);
367         }
368 
369         Invocation++;
370         Command++;
371     }
372 
373     /* Print the appropriate number of help lines */
374 
375     LineCount = Help->LineCount;
376     while (LineCount)
377     {
378         AcpiOsPrintf ("%-38s : %s", Help->Invocation, Help->Description);
379         Help++;
380         LineCount--;
381     }
382 
383     return (TRUE);
384 }
385 
386 
387 /*******************************************************************************
388  *
389  * FUNCTION:    AcpiDbDisplayCommandInfo
390  *
391  * PARAMETERS:  Command             - Command string to match
392  *              DisplayAll          - Display all matching commands, or just
393  *                                    the first one (substring match)
394  *
395  * RETURN:      None
396  *
397  * DESCRIPTION: Display help information for a Debugger command.
398  *
399  ******************************************************************************/
400 
401 static void
402 AcpiDbDisplayCommandInfo (
403     char                    *Command,
404     BOOLEAN                 DisplayAll)
405 {
406     const ACPI_DB_COMMAND_HELP  *Next;
407     BOOLEAN                     Matched;
408 
409 
410     Next = AcpiGbl_DbCommandHelp;
411     while (Next->Invocation)
412     {
413         Matched = AcpiDbMatchCommandHelp (Command, Next);
414         if (!DisplayAll && Matched)
415         {
416             return;
417         }
418 
419         Next++;
420     }
421 }
422 
423 
424 /*******************************************************************************
425  *
426  * FUNCTION:    AcpiDbDisplayHelp
427  *
428  * PARAMETERS:  Command             - Optional command string to display help.
429  *                                    if not specified, all debugger command
430  *                                    help strings are displayed
431  *
432  * RETURN:      None
433  *
434  * DESCRIPTION: Display help for a single debugger command, or all of them.
435  *
436  ******************************************************************************/
437 
438 static void
439 AcpiDbDisplayHelp (
440     char                    *Command)
441 {
442     const ACPI_DB_COMMAND_HELP  *Next = AcpiGbl_DbCommandHelp;
443 
444 
445     if (!Command)
446     {
447         /* No argument to help, display help for all commands */
448 
449         while (Next->Invocation)
450         {
451             AcpiOsPrintf ("%-38s%s", Next->Invocation, Next->Description);
452             Next++;
453         }
454     }
455     else
456     {
457         /* Display help for all commands that match the subtring */
458 
459         AcpiDbDisplayCommandInfo (Command, TRUE);
460     }
461 }
462 
463 
464 /*******************************************************************************
465  *
466  * FUNCTION:    AcpiDbGetNextToken
467  *
468  * PARAMETERS:  String          - Command buffer
469  *              Next            - Return value, end of next token
470  *
471  * RETURN:      Pointer to the start of the next token.
472  *
473  * DESCRIPTION: Command line parsing. Get the next token on the command line
474  *
475  ******************************************************************************/
476 
477 char *
478 AcpiDbGetNextToken (
479     char                    *String,
480     char                    **Next,
481     ACPI_OBJECT_TYPE        *ReturnType)
482 {
483     char                    *Start;
484     UINT32                  Depth;
485     ACPI_OBJECT_TYPE        Type = ACPI_TYPE_INTEGER;
486 
487 
488     /* At end of buffer? */
489 
490     if (!String || !(*String))
491     {
492         return (NULL);
493     }
494 
495     /* Remove any spaces at the beginning */
496 
497     if (*String == ' ')
498     {
499         while (*String && (*String == ' '))
500         {
501             String++;
502         }
503 
504         if (!(*String))
505         {
506             return (NULL);
507         }
508     }
509 
510     switch (*String)
511     {
512     case '"':
513 
514         /* This is a quoted string, scan until closing quote */
515 
516         String++;
517         Start = String;
518         Type = ACPI_TYPE_STRING;
519 
520         /* Find end of string */
521 
522         while (*String && (*String != '"'))
523         {
524             String++;
525         }
526         break;
527 
528     case '(':
529 
530         /* This is the start of a buffer, scan until closing paren */
531 
532         String++;
533         Start = String;
534         Type = ACPI_TYPE_BUFFER;
535 
536         /* Find end of buffer */
537 
538         while (*String && (*String != ')'))
539         {
540             String++;
541         }
542         break;
543 
544     case '[':
545 
546         /* This is the start of a package, scan until closing bracket */
547 
548         String++;
549         Depth = 1;
550         Start = String;
551         Type = ACPI_TYPE_PACKAGE;
552 
553         /* Find end of package (closing bracket) */
554 
555         while (*String)
556         {
557             /* Handle String package elements */
558 
559             if (*String == '"')
560             {
561                 /* Find end of string */
562 
563                 String++;
564                 while (*String && (*String != '"'))
565                 {
566                     String++;
567                 }
568                 if (!(*String))
569                 {
570                     break;
571                 }
572             }
573             else if (*String == '[')
574             {
575                 Depth++;         /* A nested package declaration */
576             }
577             else if (*String == ']')
578             {
579                 Depth--;
580                 if (Depth == 0) /* Found final package closing bracket */
581                 {
582                     break;
583                 }
584             }
585 
586             String++;
587         }
588         break;
589 
590     default:
591 
592         Start = String;
593 
594         /* Find end of token */
595 
596         while (*String && (*String != ' '))
597         {
598             String++;
599         }
600         break;
601     }
602 
603     if (!(*String))
604     {
605         *Next = NULL;
606     }
607     else
608     {
609         *String = 0;
610         *Next = String + 1;
611     }
612 
613     *ReturnType = Type;
614     return (Start);
615 }
616 
617 
618 /*******************************************************************************
619  *
620  * FUNCTION:    AcpiDbGetLine
621  *
622  * PARAMETERS:  InputBuffer         - Command line buffer
623  *
624  * RETURN:      Count of arguments to the command
625  *
626  * DESCRIPTION: Get the next command line from the user. Gets entire line
627  *              up to the next newline
628  *
629  ******************************************************************************/
630 
631 static UINT32
632 AcpiDbGetLine (
633     char                    *InputBuffer)
634 {
635     UINT32                  i;
636     UINT32                  Count;
637     char                    *Next;
638     char                    *This;
639 
640 
641     if (AcpiUtSafeStrcpy (AcpiGbl_DbParsedBuf, sizeof (AcpiGbl_DbParsedBuf),
642         InputBuffer))
643     {
644         AcpiOsPrintf ("Buffer overflow while parsing input line (max %u characters)\n",
645             sizeof (AcpiGbl_DbParsedBuf));
646         return (0);
647     }
648 
649     This = AcpiGbl_DbParsedBuf;
650     for (i = 0; i < ACPI_DEBUGGER_MAX_ARGS; i++)
651     {
652         AcpiGbl_DbArgs[i] = AcpiDbGetNextToken (This, &Next,
653             &AcpiGbl_DbArgTypes[i]);
654         if (!AcpiGbl_DbArgs[i])
655         {
656             break;
657         }
658 
659         This = Next;
660     }
661 
662     /* Uppercase the actual command */
663 
664     if (AcpiGbl_DbArgs[0])
665     {
666         AcpiUtStrupr (AcpiGbl_DbArgs[0]);
667     }
668 
669     Count = i;
670     if (Count)
671     {
672         Count--;  /* Number of args only */
673     }
674 
675     return (Count);
676 }
677 
678 
679 /*******************************************************************************
680  *
681  * FUNCTION:    AcpiDbMatchCommand
682  *
683  * PARAMETERS:  UserCommand             - User command line
684  *
685  * RETURN:      Index into command array, -1 if not found
686  *
687  * DESCRIPTION: Search command array for a command match
688  *
689  ******************************************************************************/
690 
691 static UINT32
692 AcpiDbMatchCommand (
693     char                    *UserCommand)
694 {
695     UINT32                  i;
696 
697 
698     if (!UserCommand || UserCommand[0] == 0)
699     {
700         return (CMD_NULL);
701     }
702 
703     for (i = CMD_FIRST_VALID; AcpiGbl_DbCommands[i].Name; i++)
704     {
705         if (strstr (AcpiGbl_DbCommands[i].Name, UserCommand) ==
706                          AcpiGbl_DbCommands[i].Name)
707         {
708             return (i);
709         }
710     }
711 
712     /* Command not recognized */
713 
714     return (CMD_NOT_FOUND);
715 }
716 
717 
718 /*******************************************************************************
719  *
720  * FUNCTION:    AcpiDbCommandDispatch
721  *
722  * PARAMETERS:  InputBuffer         - Command line buffer
723  *              WalkState           - Current walk
724  *              Op                  - Current (executing) parse op
725  *
726  * RETURN:      Status
727  *
728  * DESCRIPTION: Command dispatcher.
729  *
730  ******************************************************************************/
731 
732 ACPI_STATUS
733 AcpiDbCommandDispatch (
734     char                    *InputBuffer,
735     ACPI_WALK_STATE         *WalkState,
736     ACPI_PARSE_OBJECT       *Op)
737 {
738     UINT32                  Temp;
739     UINT32                  CommandIndex;
740     UINT32                  ParamCount;
741     char                    *CommandLine;
742     ACPI_STATUS             Status = AE_CTRL_TRUE;
743 
744 
745     /* If AcpiTerminate has been called, terminate this thread */
746 
747     if (AcpiGbl_DbTerminateThreads)
748     {
749         return (AE_CTRL_TERMINATE);
750     }
751 
752     /* Find command and add to the history buffer */
753 
754     ParamCount = AcpiDbGetLine (InputBuffer);
755     CommandIndex = AcpiDbMatchCommand (AcpiGbl_DbArgs[0]);
756     Temp = 0;
757 
758     /*
759      * We don't want to add the !! command to the history buffer. It
760      * would cause an infinite loop because it would always be the
761      * previous command.
762      */
763     if (CommandIndex != CMD_HISTORY_LAST)
764     {
765         AcpiDbAddToHistory (InputBuffer);
766     }
767 
768     /* Verify that we have the minimum number of params */
769 
770     if (ParamCount < AcpiGbl_DbCommands[CommandIndex].MinArgs)
771     {
772         AcpiOsPrintf ("%u parameters entered, [%s] requires %u parameters\n",
773             ParamCount, AcpiGbl_DbCommands[CommandIndex].Name,
774             AcpiGbl_DbCommands[CommandIndex].MinArgs);
775 
776         AcpiDbDisplayCommandInfo (AcpiGbl_DbCommands[CommandIndex].Name, FALSE);
777         return (AE_CTRL_TRUE);
778     }
779 
780     /* Decode and dispatch the command */
781 
782     switch (CommandIndex)
783     {
784     case CMD_NULL:
785 
786         if (Op)
787         {
788             return (AE_OK);
789         }
790         break;
791 
792     case CMD_ALLOCATIONS:
793 
794 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
795         AcpiUtDumpAllocations ((UINT32) -1, NULL);
796 #endif
797         break;
798 
799     case CMD_ARGS:
800     case CMD_ARGUMENTS:
801 
802         AcpiDbDisplayArguments ();
803         break;
804 
805     case CMD_BREAKPOINT:
806 
807         AcpiDbSetMethodBreakpoint (AcpiGbl_DbArgs[1], WalkState, Op);
808         break;
809 
810     case CMD_BUSINFO:
811 
812         AcpiDbGetBusInfo ();
813         break;
814 
815     case CMD_CALL:
816 
817         AcpiDbSetMethodCallBreakpoint (Op);
818         Status = AE_OK;
819         break;
820 
821     case CMD_CLOSE:
822 
823         AcpiDbCloseDebugFile ();
824         break;
825 
826     case CMD_DEBUG:
827 
828         AcpiDbExecute (AcpiGbl_DbArgs[1],
829             &AcpiGbl_DbArgs[2], &AcpiGbl_DbArgTypes[2], EX_SINGLE_STEP);
830         break;
831 
832     case CMD_DISASSEMBLE:
833     case CMD_DISASM:
834 
835         (void) AcpiDbDisassembleMethod (AcpiGbl_DbArgs[1]);
836         break;
837 
838     case CMD_DUMP:
839 
840         AcpiDbDecodeAndDisplayObject (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
841         break;
842 
843     case CMD_ENABLEACPI:
844 #if (!ACPI_REDUCED_HARDWARE)
845 
846         Status = AcpiEnable();
847         if (ACPI_FAILURE(Status))
848         {
849             AcpiOsPrintf("AcpiEnable failed (Status=%X)\n", Status);
850             return (Status);
851         }
852 #endif /* !ACPI_REDUCED_HARDWARE */
853         break;
854 
855     case CMD_EVENT:
856 
857         AcpiOsPrintf ("Event command not implemented\n");
858         break;
859 
860     case CMD_EVALUATE:
861     case CMD_EXECUTE:
862 
863         AcpiDbExecute (AcpiGbl_DbArgs[1],
864             &AcpiGbl_DbArgs[2], &AcpiGbl_DbArgTypes[2], EX_NO_SINGLE_STEP);
865         break;
866 
867     case CMD_FIND:
868 
869         Status = AcpiDbFindNameInNamespace (AcpiGbl_DbArgs[1]);
870         break;
871 
872     case CMD_GO:
873 
874         AcpiGbl_CmSingleStep = FALSE;
875         return (AE_OK);
876 
877     case CMD_GPE:
878 
879         AcpiDbGenerateGpe (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
880         break;
881 
882     case CMD_GPES:
883 
884         AcpiDbDisplayGpes ();
885         break;
886 
887     case CMD_HANDLERS:
888 
889         AcpiDbDisplayHandlers ();
890         break;
891 
892     case CMD_HELP:
893     case CMD_HELP2:
894 
895         AcpiDbDisplayHelp (AcpiGbl_DbArgs[1]);
896         break;
897 
898     case CMD_HISTORY:
899 
900         AcpiDbDisplayHistory ();
901         break;
902 
903     case CMD_HISTORY_EXE: /* ! command */
904 
905         CommandLine = AcpiDbGetFromHistory (AcpiGbl_DbArgs[1]);
906         if (!CommandLine)
907         {
908             return (AE_CTRL_TRUE);
909         }
910 
911         Status = AcpiDbCommandDispatch (CommandLine, WalkState, Op);
912         return (Status);
913 
914     case CMD_HISTORY_LAST: /* !! command */
915 
916         CommandLine = AcpiDbGetFromHistory (NULL);
917         if (!CommandLine)
918         {
919             return (AE_CTRL_TRUE);
920         }
921 
922         Status = AcpiDbCommandDispatch (CommandLine, WalkState, Op);
923         return (Status);
924 
925     case CMD_INFORMATION:
926 
927         AcpiDbDisplayMethodInfo (Op);
928         break;
929 
930     case CMD_INTEGRITY:
931 
932         AcpiDbCheckIntegrity ();
933         break;
934 
935     case CMD_INTO:
936 
937         if (Op)
938         {
939             AcpiGbl_CmSingleStep = TRUE;
940             return (AE_OK);
941         }
942         break;
943 
944     case CMD_LEVEL:
945 
946         if (ParamCount == 0)
947         {
948             AcpiOsPrintf ("Current debug level for file output is:    %8.8lX\n",
949                 AcpiGbl_DbDebugLevel);
950             AcpiOsPrintf ("Current debug level for console output is: %8.8lX\n",
951                 AcpiGbl_DbConsoleDebugLevel);
952         }
953         else if (ParamCount == 2)
954         {
955             Temp = AcpiGbl_DbConsoleDebugLevel;
956             AcpiGbl_DbConsoleDebugLevel = strtoul (AcpiGbl_DbArgs[1],
957                                             NULL, 16);
958             AcpiOsPrintf (
959                 "Debug Level for console output was %8.8lX, now %8.8lX\n",
960                 Temp, AcpiGbl_DbConsoleDebugLevel);
961         }
962         else
963         {
964             Temp = AcpiGbl_DbDebugLevel;
965             AcpiGbl_DbDebugLevel = strtoul (AcpiGbl_DbArgs[1], NULL, 16);
966             AcpiOsPrintf (
967                 "Debug Level for file output was %8.8lX, now %8.8lX\n",
968                 Temp, AcpiGbl_DbDebugLevel);
969         }
970         break;
971 
972     case CMD_LIST:
973 
974         AcpiDbDisassembleAml (AcpiGbl_DbArgs[1], Op);
975         break;
976 
977     case CMD_LOAD:
978 
979         Status = AcpiDbGetTableFromFile (AcpiGbl_DbArgs[1], NULL, FALSE);
980         break;
981 
982     case CMD_LOCKS:
983 
984         AcpiDbDisplayLocks ();
985         break;
986 
987     case CMD_LOCALS:
988 
989         AcpiDbDisplayLocals ();
990         break;
991 
992     case CMD_METHODS:
993 
994         Status = AcpiDbDisplayObjects ("METHOD", AcpiGbl_DbArgs[1]);
995         break;
996 
997     case CMD_NAMESPACE:
998 
999         AcpiDbDumpNamespace (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1000         break;
1001 
1002     case CMD_NOTIFY:
1003 
1004         Temp = strtoul (AcpiGbl_DbArgs[2], NULL, 0);
1005         AcpiDbSendNotify (AcpiGbl_DbArgs[1], Temp);
1006         break;
1007 
1008     case CMD_OBJECTS:
1009 
1010         AcpiUtStrupr (AcpiGbl_DbArgs[1]);
1011         Status = AcpiDbDisplayObjects (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1012         break;
1013 
1014     case CMD_OPEN:
1015 
1016         AcpiDbOpenDebugFile (AcpiGbl_DbArgs[1]);
1017         break;
1018 
1019     case CMD_OSI:
1020 
1021         AcpiDbDisplayInterfaces (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1022         break;
1023 
1024     case CMD_OWNER:
1025 
1026         AcpiDbDumpNamespaceByOwner (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1027         break;
1028 
1029     case CMD_PATHS:
1030 
1031         AcpiDbDumpNamespacePaths ();
1032         break;
1033 
1034     case CMD_PREDEFINED:
1035 
1036         AcpiDbCheckPredefinedNames ();
1037         break;
1038 
1039     case CMD_PREFIX:
1040 
1041         AcpiDbSetScope (AcpiGbl_DbArgs[1]);
1042         break;
1043 
1044     case CMD_REFERENCES:
1045 
1046         AcpiDbFindReferences (AcpiGbl_DbArgs[1]);
1047         break;
1048 
1049     case CMD_RESOURCES:
1050 
1051         AcpiDbDisplayResources (AcpiGbl_DbArgs[1]);
1052         break;
1053 
1054     case CMD_RESULTS:
1055 
1056         AcpiDbDisplayResults ();
1057         break;
1058 
1059     case CMD_SCI:
1060 
1061         AcpiDbGenerateSci ();
1062         break;
1063 
1064     case CMD_SET:
1065 
1066         AcpiDbSetMethodData (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2],
1067             AcpiGbl_DbArgs[3]);
1068         break;
1069 
1070     case CMD_SLEEP:
1071 
1072         Status = AcpiDbSleep (AcpiGbl_DbArgs[1]);
1073         break;
1074 
1075     case CMD_STATS:
1076 
1077         Status = AcpiDbDisplayStatistics (AcpiGbl_DbArgs[1]);
1078         break;
1079 
1080     case CMD_STOP:
1081 
1082         return (AE_NOT_IMPLEMENTED);
1083 
1084     case CMD_TABLES:
1085 
1086         AcpiDbDisplayTableInfo (AcpiGbl_DbArgs[1]);
1087         break;
1088 
1089     case CMD_TEMPLATE:
1090 
1091         AcpiDbDisplayTemplate (AcpiGbl_DbArgs[1]);
1092         break;
1093 
1094     case CMD_TERMINATE:
1095 
1096         AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT);
1097         AcpiUtSubsystemShutdown ();
1098 
1099         /*
1100          * TBD: [Restructure] Need some way to re-initialize without
1101          * re-creating the semaphores!
1102          */
1103 
1104         /*  AcpiInitialize (NULL);  */
1105         break;
1106 
1107     case CMD_TEST:
1108 
1109         AcpiDbExecuteTest (AcpiGbl_DbArgs[1]);
1110         break;
1111 
1112     case CMD_THREADS:
1113 
1114         AcpiDbCreateExecutionThreads (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2],
1115             AcpiGbl_DbArgs[3]);
1116         break;
1117 
1118     case CMD_TRACE:
1119 
1120         (void) AcpiDebugTrace (AcpiGbl_DbArgs[1],0,0,1);
1121         break;
1122 
1123     case CMD_TREE:
1124 
1125         AcpiDbDisplayCallingTree ();
1126         break;
1127 
1128     case CMD_TYPE:
1129 
1130         AcpiDbDisplayObjectType (AcpiGbl_DbArgs[1]);
1131         break;
1132 
1133     case CMD_UNLOAD:
1134 
1135         AcpiDbUnloadAcpiTable (AcpiGbl_DbArgs[1]);
1136         break;
1137 
1138     case CMD_EXIT:
1139     case CMD_QUIT:
1140 
1141         if (Op)
1142         {
1143             AcpiOsPrintf ("Method execution terminated\n");
1144             return (AE_CTRL_TERMINATE);
1145         }
1146 
1147         if (!AcpiGbl_DbOutputToFile)
1148         {
1149             AcpiDbgLevel = ACPI_DEBUG_DEFAULT;
1150         }
1151 
1152         AcpiDbCloseDebugFile ();
1153         AcpiGbl_DbTerminateThreads = TRUE;
1154         return (AE_CTRL_TERMINATE);
1155 
1156     case CMD_NOT_FOUND:
1157     default:
1158 
1159         AcpiOsPrintf ("%s: unknown command\n", AcpiGbl_DbArgs[0]);
1160         return (AE_CTRL_TRUE);
1161     }
1162 
1163     if (ACPI_SUCCESS (Status))
1164     {
1165         Status = AE_CTRL_TRUE;
1166     }
1167 
1168     return (Status);
1169 }
1170 
1171 
1172 /*******************************************************************************
1173  *
1174  * FUNCTION:    AcpiDbExecuteThread
1175  *
1176  * PARAMETERS:  Context         - Not used
1177  *
1178  * RETURN:      None
1179  *
1180  * DESCRIPTION: Debugger execute thread. Waits for a command line, then
1181  *              simply dispatches it.
1182  *
1183  ******************************************************************************/
1184 
1185 void ACPI_SYSTEM_XFACE
1186 AcpiDbExecuteThread (
1187     void                    *Context)
1188 {
1189     ACPI_STATUS             Status = AE_OK;
1190     ACPI_STATUS             MStatus;
1191 
1192 
1193     while (Status != AE_CTRL_TERMINATE)
1194     {
1195         AcpiGbl_MethodExecuting = FALSE;
1196         AcpiGbl_StepToNextCall = FALSE;
1197 
1198         MStatus = AcpiUtAcquireMutex (ACPI_MTX_DEBUG_CMD_READY);
1199         if (ACPI_FAILURE (MStatus))
1200         {
1201             return;
1202         }
1203 
1204         Status = AcpiDbCommandDispatch (AcpiGbl_DbLineBuf, NULL, NULL);
1205 
1206         MStatus = AcpiUtReleaseMutex (ACPI_MTX_DEBUG_CMD_COMPLETE);
1207         if (ACPI_FAILURE (MStatus))
1208         {
1209             return;
1210         }
1211     }
1212 }
1213 
1214 
1215 /*******************************************************************************
1216  *
1217  * FUNCTION:    AcpiDbSingleThread
1218  *
1219  * PARAMETERS:  None
1220  *
1221  * RETURN:      None
1222  *
1223  * DESCRIPTION: Debugger execute thread. Waits for a command line, then
1224  *              simply dispatches it.
1225  *
1226  ******************************************************************************/
1227 
1228 static void
1229 AcpiDbSingleThread (
1230     void)
1231 {
1232 
1233     AcpiGbl_MethodExecuting = FALSE;
1234     AcpiGbl_StepToNextCall = FALSE;
1235 
1236     (void) AcpiDbCommandDispatch (AcpiGbl_DbLineBuf, NULL, NULL);
1237 }
1238 
1239 
1240 /*******************************************************************************
1241  *
1242  * FUNCTION:    AcpiDbUserCommands
1243  *
1244  * PARAMETERS:  Prompt              - User prompt (depends on mode)
1245  *              Op                  - Current executing parse op
1246  *
1247  * RETURN:      None
1248  *
1249  * DESCRIPTION: Command line execution for the AML debugger. Commands are
1250  *              matched and dispatched here.
1251  *
1252  ******************************************************************************/
1253 
1254 ACPI_STATUS
1255 AcpiDbUserCommands (
1256     char                    Prompt,
1257     ACPI_PARSE_OBJECT       *Op)
1258 {
1259     ACPI_STATUS             Status = AE_OK;
1260 
1261 
1262     AcpiOsPrintf ("\n");
1263 
1264     /* TBD: [Restructure] Need a separate command line buffer for step mode */
1265 
1266     while (!AcpiGbl_DbTerminateThreads)
1267     {
1268         /* Force output to console until a command is entered */
1269 
1270         AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);
1271 
1272         /* Different prompt if method is executing */
1273 
1274         if (!AcpiGbl_MethodExecuting)
1275         {
1276             AcpiOsPrintf ("%1c ", ACPI_DEBUGGER_COMMAND_PROMPT);
1277         }
1278         else
1279         {
1280             AcpiOsPrintf ("%1c ", ACPI_DEBUGGER_EXECUTE_PROMPT);
1281         }
1282 
1283         /* Get the user input line */
1284 
1285         Status = AcpiOsGetLine (AcpiGbl_DbLineBuf,
1286             ACPI_DB_LINE_BUFFER_SIZE, NULL);
1287         if (ACPI_FAILURE (Status))
1288         {
1289             ACPI_EXCEPTION ((AE_INFO, Status, "While parsing command line"));
1290             return (Status);
1291         }
1292 
1293         /* Check for single or multithreaded debug */
1294 
1295         if (AcpiGbl_DebuggerConfiguration & DEBUGGER_MULTI_THREADED)
1296         {
1297             /*
1298              * Signal the debug thread that we have a command to execute,
1299              * and wait for the command to complete.
1300              */
1301             Status = AcpiUtReleaseMutex (ACPI_MTX_DEBUG_CMD_READY);
1302             if (ACPI_FAILURE (Status))
1303             {
1304                 return (Status);
1305             }
1306 
1307             Status = AcpiUtAcquireMutex (ACPI_MTX_DEBUG_CMD_COMPLETE);
1308             if (ACPI_FAILURE (Status))
1309             {
1310                 return (Status);
1311             }
1312         }
1313         else
1314         {
1315             /* Just call to the command line interpreter */
1316 
1317             AcpiDbSingleThread ();
1318         }
1319     }
1320 
1321     /*
1322      * Only this thread (the original thread) should actually terminate the
1323      * subsystem, because all the semaphores are deleted during termination
1324      */
1325     Status = AcpiTerminate ();
1326     return (Status);
1327 }
1328 
1329 #endif  /* ACPI_DEBUGGER */
1330