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 
55 /* Local prototypes */
56 
57 static UINT32
58 AcpiDbGetLine (
59     char                    *InputBuffer);
60 
61 static UINT32
62 AcpiDbMatchCommand (
63     char                    *UserCommand);
64 
65 static void
66 AcpiDbSingleThread (
67     void);
68 
69 static void
70 AcpiDbDisplayCommandInfo (
71     char                    *Command,
72     BOOLEAN                 DisplayAll);
73 
74 static void
75 AcpiDbDisplayHelp (
76     char                    *Command);
77 
78 static BOOLEAN
79 AcpiDbMatchCommandHelp (
80     char                        *Command,
81     const ACPI_DB_COMMAND_HELP  *Help);
82 
83 
84 /*
85  * Top-level debugger commands.
86  *
87  * This list of commands must match the string table below it
88  */
89 enum AcpiExDebuggerCommands
90 {
91     CMD_NOT_FOUND = 0,
92     CMD_NULL,
93     CMD_ALLOCATIONS,
94     CMD_ARGS,
95     CMD_ARGUMENTS,
96     CMD_BREAKPOINT,
97     CMD_BUSINFO,
98     CMD_CALL,
99     CMD_DEBUG,
100     CMD_DISASSEMBLE,
101     CMD_DISASM,
102     CMD_DUMP,
103     CMD_EVALUATE,
104     CMD_EXECUTE,
105     CMD_EXIT,
106     CMD_FIND,
107     CMD_GO,
108     CMD_HANDLERS,
109     CMD_HELP,
110     CMD_HELP2,
111     CMD_HISTORY,
112     CMD_HISTORY_EXE,
113     CMD_HISTORY_LAST,
114     CMD_INFORMATION,
115     CMD_INTEGRITY,
116     CMD_INTO,
117     CMD_LEVEL,
118     CMD_LIST,
119     CMD_LOCALS,
120     CMD_LOCKS,
121     CMD_METHODS,
122     CMD_NAMESPACE,
123     CMD_NOTIFY,
124     CMD_OBJECTS,
125     CMD_OSI,
126     CMD_OWNER,
127     CMD_PATHS,
128     CMD_PREDEFINED,
129     CMD_PREFIX,
130     CMD_QUIT,
131     CMD_REFERENCES,
132     CMD_RESOURCES,
133     CMD_RESULTS,
134     CMD_SET,
135     CMD_STATS,
136     CMD_STOP,
137     CMD_TABLES,
138     CMD_TEMPLATE,
139     CMD_TRACE,
140     CMD_TREE,
141     CMD_TYPE,
142 #ifdef ACPI_APPLICATION
143     CMD_ENABLEACPI,
144     CMD_EVENT,
145     CMD_GPE,
146     CMD_GPES,
147     CMD_SCI,
148     CMD_SLEEP,
149 
150     CMD_CLOSE,
151     CMD_LOAD,
152     CMD_OPEN,
153     CMD_UNLOAD,
154 
155     CMD_TERMINATE,
156     CMD_THREADS,
157 
158     CMD_TEST,
159 #endif
160 };
161 
162 #define CMD_FIRST_VALID     2
163 
164 
165 /* Second parameter is the required argument count */
166 
167 static const ACPI_DB_COMMAND_INFO   AcpiGbl_DbCommands[] =
168 {
169     {"<NOT FOUND>",  0},
170     {"<NULL>",       0},
171     {"ALLOCATIONS",  0},
172     {"ARGS",         0},
173     {"ARGUMENTS",    0},
174     {"BREAKPOINT",   1},
175     {"BUSINFO",      0},
176     {"CALL",         0},
177     {"DEBUG",        1},
178     {"DISASSEMBLE",  1},
179     {"DISASM",       1},
180     {"DUMP",         1},
181     {"EVALUATE",     1},
182     {"EXECUTE",      1},
183     {"EXIT",         0},
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     {"THREADS",      3},
235 
236     {"TEST",         1},
237 #endif
238     {NULL,           0}
239 };
240 
241 /*
242  * Help for all debugger commands. First argument is the number of lines
243  * of help to output for the command.
244  */
245 static const ACPI_DB_COMMAND_HELP   AcpiGbl_DbCommandHelp[] =
246 {
247     {0, "\nGeneral-Purpose Commands:",         "\n"},
248     {1, "  Allocations",                       "Display list of current memory allocations\n"},
249     {2, "  Dump <Address>|<Namepath>",         "\n"},
250     {0, "       [Byte|Word|Dword|Qword]",      "Display ACPI objects or memory\n"},
251     {1, "  Handlers",                          "Info about global handlers\n"},
252     {1, "  Help [Command]",                    "This help screen or individual command\n"},
253     {1, "  History",                           "Display command history buffer\n"},
254     {1, "  Level <DebugLevel>] [console]",     "Get/Set debug level for file or console\n"},
255     {1, "  Locks",                             "Current status of internal mutexes\n"},
256     {1, "  Osi [Install|Remove <name>]",       "Display or modify global _OSI list\n"},
257     {1, "  Quit or Exit",                      "Exit this command\n"},
258     {8, "  Stats <SubCommand>",                "Display namespace and memory statistics\n"},
259     {1, "     Allocations",                    "Display list of current memory allocations\n"},
260     {1, "     Memory",                         "Dump internal memory lists\n"},
261     {1, "     Misc",                           "Namespace search and mutex stats\n"},
262     {1, "     Objects",                        "Summary of namespace objects\n"},
263     {1, "     Sizes",                          "Sizes for each of the internal objects\n"},
264     {1, "     Stack",                          "Display CPU stack usage\n"},
265     {1, "     Tables",                         "Info about current ACPI table(s)\n"},
266     {1, "  Tables",                            "Display info about loaded ACPI tables\n"},
267     {1, "  ! <CommandNumber>",                 "Execute command from history buffer\n"},
268     {1, "  !!",                                "Execute last command again\n"},
269 
270     {0, "\nNamespace Access Commands:",        "\n"},
271     {1, "  Businfo",                           "Display system bus info\n"},
272     {1, "  Disassemble <Method>",              "Disassemble a control method\n"},
273     {1, "  Find <AcpiName> (? is wildcard)",   "Find ACPI name(s) with wildcards\n"},
274     {1, "  Integrity",                         "Validate namespace integrity\n"},
275     {1, "  Methods",                           "Display list of loaded control methods\n"},
276     {1, "  Namespace [Object] [Depth]",        "Display loaded namespace tree/subtree\n"},
277     {1, "  Notify <Object> <Value>",           "Send a notification on Object\n"},
278     {1, "  Objects [ObjectType]",              "Display summary of all objects or just given type\n"},
279     {1, "  Owner <OwnerId> [Depth]",           "Display loaded namespace by object owner\n"},
280     {1, "  Paths",                             "Display full pathnames of namespace objects\n"},
281     {1, "  Predefined",                        "Check all predefined names\n"},
282     {1, "  Prefix [<Namepath>]",               "Set or Get current execution prefix\n"},
283     {1, "  References <Addr>",                 "Find all references to object at addr\n"},
284     {1, "  Resources [DeviceName]",            "Display Device resources (no arg = all devices)\n"},
285     {1, "  Set N <NamedObject> <Value>",       "Set value for named integer\n"},
286     {1, "  Template <Object>",                 "Format/dump a Buffer/ResourceTemplate\n"},
287     {1, "  Type <Object>",                     "Display object type\n"},
288 
289     {0, "\nControl Method Execution Commands:","\n"},
290     {1, "  Arguments (or Args)",               "Display method arguments\n"},
291     {1, "  Breakpoint <AmlOffset>",            "Set an AML execution breakpoint\n"},
292     {1, "  Call",                              "Run to next control method invocation\n"},
293     {1, "  Debug <Namepath> [Arguments]",      "Single Step a control method\n"},
294     {6, "  Evaluate",                          "Synonym for Execute\n"},
295     {5, "  Execute <Namepath> [Arguments]",    "Execute control method\n"},
296     {1, "     Hex Integer",                    "Integer method argument\n"},
297     {1, "     \"Ascii String\"",               "String method argument\n"},
298     {1, "     (Hex Byte List)",                "Buffer method argument\n"},
299     {1, "     [Package Element List]",         "Package method argument\n"},
300     {1, "  Go",                                "Allow method to run to completion\n"},
301     {1, "  Information",                       "Display info about the current method\n"},
302     {1, "  Into",                              "Step into (not over) a method call\n"},
303     {1, "  List [# of Aml Opcodes]",           "Display method ASL statements\n"},
304     {1, "  Locals",                            "Display method local variables\n"},
305     {1, "  Results",                           "Display method result stack\n"},
306     {1, "  Set <A|L> <#> <Value>",             "Set method data (Arguments/Locals)\n"},
307     {1, "  Stop",                              "Terminate control method\n"},
308     {5, "  Trace <State> [<Namepath>] [Once]", "Trace control method execution\n"},
309     {1, "     Enable",                         "Enable all messages\n"},
310     {1, "     Disable",                        "Disable tracing\n"},
311     {1, "     Method",                         "Enable method execution messages\n"},
312     {1, "     Opcode",                         "Enable opcode execution messages\n"},
313     {1, "  Tree",                              "Display control method calling tree\n"},
314     {1, "  <Enter>",                           "Single step next AML opcode (over calls)\n"},
315 
316 #ifdef ACPI_APPLICATION
317     {0, "\nHardware Simulation Commands:",         "\n"},
318     {1, "  EnableAcpi",                        "Enable ACPI (hardware) mode\n"},
319     {1, "  Event <F|G> <Value>",               "Generate AcpiEvent (Fixed/GPE)\n"},
320     {1, "  Gpe <GpeNum> [GpeBlockDevice]",     "Simulate a GPE\n"},
321     {1, "  Gpes",                              "Display info on all GPE devices\n"},
322     {1, "  Sci",                               "Generate an SCI\n"},
323     {1, "  Sleep [SleepState]",                "Simulate sleep/wake sequence(s) (0-5)\n"},
324 
325     {0, "\nFile I/O Commands:",                "\n"},
326     {1, "  Close",                             "Close debug output file\n"},
327     {1, "  Load <Input Filename>",             "Load ACPI table from a file\n"},
328     {1, "  Open <Output Filename>",            "Open a file for debug output\n"},
329     {1, "  Unload <Namepath>",                 "Unload an ACPI table via namespace object\n"},
330 
331     {0, "\nUser Space Commands:",              "\n"},
332     {1, "  Terminate",                         "Delete namespace and all internal objects\n"},
333     {1, "  Thread <Threads><Loops><NamePath>", "Spawn threads to execute method(s)\n"},
334 
335     {0, "\nDebug Test Commands:",              "\n"},
336     {3, "  Test <TestName>",                   "Invoke a debug test\n"},
337     {1, "     Objects",                        "Read/write/compare all namespace data objects\n"},
338     {1, "     Predefined",                     "Execute all ACPI predefined names (_STA, etc.)\n"},
339 #endif
340     {0, NULL, NULL}
341 };
342 
343 
344 /*******************************************************************************
345  *
346  * FUNCTION:    AcpiDbMatchCommandHelp
347  *
348  * PARAMETERS:  Command             - Command string to match
349  *              Help                - Help table entry to attempt match
350  *
351  * RETURN:      TRUE if command matched, FALSE otherwise
352  *
353  * DESCRIPTION: Attempt to match a command in the help table in order to
354  *              print help information for a single command.
355  *
356  ******************************************************************************/
357 
358 static BOOLEAN
359 AcpiDbMatchCommandHelp (
360     char                        *Command,
361     const ACPI_DB_COMMAND_HELP  *Help)
362 {
363     char                    *Invocation = Help->Invocation;
364     UINT32                  LineCount;
365 
366 
367     /* Valid commands in the help table begin with a couple of spaces */
368 
369     if (*Invocation != ' ')
370     {
371         return (FALSE);
372     }
373 
374     while (*Invocation == ' ')
375     {
376         Invocation++;
377     }
378 
379     /* Match command name (full command or substring) */
380 
381     while ((*Command) && (*Invocation) && (*Invocation != ' '))
382     {
383         if (tolower ((int) *Command) != tolower ((int) *Invocation))
384         {
385             return (FALSE);
386         }
387 
388         Invocation++;
389         Command++;
390     }
391 
392     /* Print the appropriate number of help lines */
393 
394     LineCount = Help->LineCount;
395     while (LineCount)
396     {
397         AcpiOsPrintf ("%-38s : %s", Help->Invocation, Help->Description);
398         Help++;
399         LineCount--;
400     }
401 
402     return (TRUE);
403 }
404 
405 
406 /*******************************************************************************
407  *
408  * FUNCTION:    AcpiDbDisplayCommandInfo
409  *
410  * PARAMETERS:  Command             - Command string to match
411  *              DisplayAll          - Display all matching commands, or just
412  *                                    the first one (substring match)
413  *
414  * RETURN:      None
415  *
416  * DESCRIPTION: Display help information for a Debugger command.
417  *
418  ******************************************************************************/
419 
420 static void
421 AcpiDbDisplayCommandInfo (
422     char                    *Command,
423     BOOLEAN                 DisplayAll)
424 {
425     const ACPI_DB_COMMAND_HELP  *Next;
426     BOOLEAN                     Matched;
427 
428 
429     Next = AcpiGbl_DbCommandHelp;
430     while (Next->Invocation)
431     {
432         Matched = AcpiDbMatchCommandHelp (Command, Next);
433         if (!DisplayAll && Matched)
434         {
435             return;
436         }
437 
438         Next++;
439     }
440 }
441 
442 
443 /*******************************************************************************
444  *
445  * FUNCTION:    AcpiDbDisplayHelp
446  *
447  * PARAMETERS:  Command             - Optional command string to display help.
448  *                                    if not specified, all debugger command
449  *                                    help strings are displayed
450  *
451  * RETURN:      None
452  *
453  * DESCRIPTION: Display help for a single debugger command, or all of them.
454  *
455  ******************************************************************************/
456 
457 static void
458 AcpiDbDisplayHelp (
459     char                    *Command)
460 {
461     const ACPI_DB_COMMAND_HELP  *Next = AcpiGbl_DbCommandHelp;
462 
463 
464     if (!Command)
465     {
466         /* No argument to help, display help for all commands */
467 
468         while (Next->Invocation)
469         {
470             AcpiOsPrintf ("%-38s%s", Next->Invocation, Next->Description);
471             Next++;
472         }
473     }
474     else
475     {
476         /* Display help for all commands that match the subtring */
477 
478         AcpiDbDisplayCommandInfo (Command, TRUE);
479     }
480 }
481 
482 
483 /*******************************************************************************
484  *
485  * FUNCTION:    AcpiDbGetNextToken
486  *
487  * PARAMETERS:  String          - Command buffer
488  *              Next            - Return value, end of next token
489  *
490  * RETURN:      Pointer to the start of the next token.
491  *
492  * DESCRIPTION: Command line parsing. Get the next token on the command line
493  *
494  ******************************************************************************/
495 
496 char *
497 AcpiDbGetNextToken (
498     char                    *String,
499     char                    **Next,
500     ACPI_OBJECT_TYPE        *ReturnType)
501 {
502     char                    *Start;
503     UINT32                  Depth;
504     ACPI_OBJECT_TYPE        Type = ACPI_TYPE_INTEGER;
505 
506 
507     /* At end of buffer? */
508 
509     if (!String || !(*String))
510     {
511         return (NULL);
512     }
513 
514     /* Remove any spaces at the beginning */
515 
516     if (*String == ' ')
517     {
518         while (*String && (*String == ' '))
519         {
520             String++;
521         }
522 
523         if (!(*String))
524         {
525             return (NULL);
526         }
527     }
528 
529     switch (*String)
530     {
531     case '"':
532 
533         /* This is a quoted string, scan until closing quote */
534 
535         String++;
536         Start = String;
537         Type = ACPI_TYPE_STRING;
538 
539         /* Find end of string */
540 
541         while (*String && (*String != '"'))
542         {
543             String++;
544         }
545         break;
546 
547     case '(':
548 
549         /* This is the start of a buffer, scan until closing paren */
550 
551         String++;
552         Start = String;
553         Type = ACPI_TYPE_BUFFER;
554 
555         /* Find end of buffer */
556 
557         while (*String && (*String != ')'))
558         {
559             String++;
560         }
561         break;
562 
563     case '[':
564 
565         /* This is the start of a package, scan until closing bracket */
566 
567         String++;
568         Depth = 1;
569         Start = String;
570         Type = ACPI_TYPE_PACKAGE;
571 
572         /* Find end of package (closing bracket) */
573 
574         while (*String)
575         {
576             /* Handle String package elements */
577 
578             if (*String == '"')
579             {
580                 /* Find end of string */
581 
582                 String++;
583                 while (*String && (*String != '"'))
584                 {
585                     String++;
586                 }
587                 if (!(*String))
588                 {
589                     break;
590                 }
591             }
592             else if (*String == '[')
593             {
594                 Depth++;         /* A nested package declaration */
595             }
596             else if (*String == ']')
597             {
598                 Depth--;
599                 if (Depth == 0) /* Found final package closing bracket */
600                 {
601                     break;
602                 }
603             }
604 
605             String++;
606         }
607         break;
608 
609     default:
610 
611         Start = String;
612 
613         /* Find end of token */
614 
615         while (*String && (*String != ' '))
616         {
617             String++;
618         }
619         break;
620     }
621 
622     if (!(*String))
623     {
624         *Next = NULL;
625     }
626     else
627     {
628         *String = 0;
629         *Next = String + 1;
630     }
631 
632     *ReturnType = Type;
633     return (Start);
634 }
635 
636 
637 /*******************************************************************************
638  *
639  * FUNCTION:    AcpiDbGetLine
640  *
641  * PARAMETERS:  InputBuffer         - Command line buffer
642  *
643  * RETURN:      Count of arguments to the command
644  *
645  * DESCRIPTION: Get the next command line from the user. Gets entire line
646  *              up to the next newline
647  *
648  ******************************************************************************/
649 
650 static UINT32
651 AcpiDbGetLine (
652     char                    *InputBuffer)
653 {
654     UINT32                  i;
655     UINT32                  Count;
656     char                    *Next;
657     char                    *This;
658 
659 
660     if (AcpiUtSafeStrcpy (AcpiGbl_DbParsedBuf, sizeof (AcpiGbl_DbParsedBuf),
661         InputBuffer))
662     {
663         AcpiOsPrintf (
664             "Buffer overflow while parsing input line (max %u characters)\n",
665             sizeof (AcpiGbl_DbParsedBuf));
666         return (0);
667     }
668 
669     This = AcpiGbl_DbParsedBuf;
670     for (i = 0; i < ACPI_DEBUGGER_MAX_ARGS; i++)
671     {
672         AcpiGbl_DbArgs[i] = AcpiDbGetNextToken (This, &Next,
673             &AcpiGbl_DbArgTypes[i]);
674         if (!AcpiGbl_DbArgs[i])
675         {
676             break;
677         }
678 
679         This = Next;
680     }
681 
682     /* Uppercase the actual command */
683 
684     if (AcpiGbl_DbArgs[0])
685     {
686         AcpiUtStrupr (AcpiGbl_DbArgs[0]);
687     }
688 
689     Count = i;
690     if (Count)
691     {
692         Count--;  /* Number of args only */
693     }
694 
695     return (Count);
696 }
697 
698 
699 /*******************************************************************************
700  *
701  * FUNCTION:    AcpiDbMatchCommand
702  *
703  * PARAMETERS:  UserCommand             - User command line
704  *
705  * RETURN:      Index into command array, -1 if not found
706  *
707  * DESCRIPTION: Search command array for a command match
708  *
709  ******************************************************************************/
710 
711 static UINT32
712 AcpiDbMatchCommand (
713     char                    *UserCommand)
714 {
715     UINT32                  i;
716 
717 
718     if (!UserCommand || UserCommand[0] == 0)
719     {
720         return (CMD_NULL);
721     }
722 
723     for (i = CMD_FIRST_VALID; AcpiGbl_DbCommands[i].Name; i++)
724     {
725         if (strstr (AcpiGbl_DbCommands[i].Name, UserCommand) ==
726             AcpiGbl_DbCommands[i].Name)
727         {
728             return (i);
729         }
730     }
731 
732     /* Command not recognized */
733 
734     return (CMD_NOT_FOUND);
735 }
736 
737 
738 /*******************************************************************************
739  *
740  * FUNCTION:    AcpiDbCommandDispatch
741  *
742  * PARAMETERS:  InputBuffer         - Command line buffer
743  *              WalkState           - Current walk
744  *              Op                  - Current (executing) parse op
745  *
746  * RETURN:      Status
747  *
748  * DESCRIPTION: Command dispatcher.
749  *
750  ******************************************************************************/
751 
752 ACPI_STATUS
753 AcpiDbCommandDispatch (
754     char                    *InputBuffer,
755     ACPI_WALK_STATE         *WalkState,
756     ACPI_PARSE_OBJECT       *Op)
757 {
758     UINT32                  Temp;
759     UINT32                  CommandIndex;
760     UINT32                  ParamCount;
761     char                    *CommandLine;
762     ACPI_STATUS             Status = AE_CTRL_TRUE;
763 
764 
765     /* If AcpiTerminate has been called, terminate this thread */
766 
767     if (AcpiGbl_DbTerminateThreads)
768     {
769         return (AE_CTRL_TERMINATE);
770     }
771 
772     /* Find command and add to the history buffer */
773 
774     ParamCount = AcpiDbGetLine (InputBuffer);
775     CommandIndex = AcpiDbMatchCommand (AcpiGbl_DbArgs[0]);
776     Temp = 0;
777 
778     /*
779      * We don't want to add the !! command to the history buffer. It
780      * would cause an infinite loop because it would always be the
781      * previous command.
782      */
783     if (CommandIndex != CMD_HISTORY_LAST)
784     {
785         AcpiDbAddToHistory (InputBuffer);
786     }
787 
788     /* Verify that we have the minimum number of params */
789 
790     if (ParamCount < AcpiGbl_DbCommands[CommandIndex].MinArgs)
791     {
792         AcpiOsPrintf ("%u parameters entered, [%s] requires %u parameters\n",
793             ParamCount, AcpiGbl_DbCommands[CommandIndex].Name,
794             AcpiGbl_DbCommands[CommandIndex].MinArgs);
795 
796         AcpiDbDisplayCommandInfo (
797             AcpiGbl_DbCommands[CommandIndex].Name, FALSE);
798         return (AE_CTRL_TRUE);
799     }
800 
801     /* Decode and dispatch the command */
802 
803     switch (CommandIndex)
804     {
805     case CMD_NULL:
806 
807         if (Op)
808         {
809             return (AE_OK);
810         }
811         break;
812 
813     case CMD_ALLOCATIONS:
814 
815 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
816         AcpiUtDumpAllocations ((UINT32) -1, NULL);
817 #endif
818         break;
819 
820     case CMD_ARGS:
821     case CMD_ARGUMENTS:
822 
823         AcpiDbDisplayArguments ();
824         break;
825 
826     case CMD_BREAKPOINT:
827 
828         AcpiDbSetMethodBreakpoint (AcpiGbl_DbArgs[1], WalkState, Op);
829         break;
830 
831     case CMD_BUSINFO:
832 
833         AcpiDbGetBusInfo ();
834         break;
835 
836     case CMD_CALL:
837 
838         AcpiDbSetMethodCallBreakpoint (Op);
839         Status = AE_OK;
840         break;
841 
842     case CMD_DEBUG:
843 
844         AcpiDbExecute (AcpiGbl_DbArgs[1],
845             &AcpiGbl_DbArgs[2], &AcpiGbl_DbArgTypes[2], EX_SINGLE_STEP);
846         break;
847 
848     case CMD_DISASSEMBLE:
849     case CMD_DISASM:
850 
851         (void) AcpiDbDisassembleMethod (AcpiGbl_DbArgs[1]);
852         break;
853 
854     case CMD_DUMP:
855 
856         AcpiDbDecodeAndDisplayObject (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
857         break;
858 
859     case CMD_EVALUATE:
860     case CMD_EXECUTE:
861 
862         AcpiDbExecute (AcpiGbl_DbArgs[1],
863             &AcpiGbl_DbArgs[2], &AcpiGbl_DbArgTypes[2], EX_NO_SINGLE_STEP);
864         break;
865 
866     case CMD_FIND:
867 
868         Status = AcpiDbFindNameInNamespace (AcpiGbl_DbArgs[1]);
869         break;
870 
871     case CMD_GO:
872 
873         AcpiGbl_CmSingleStep = FALSE;
874         return (AE_OK);
875 
876     case CMD_HANDLERS:
877 
878         AcpiDbDisplayHandlers ();
879         break;
880 
881     case CMD_HELP:
882     case CMD_HELP2:
883 
884         AcpiDbDisplayHelp (AcpiGbl_DbArgs[1]);
885         break;
886 
887     case CMD_HISTORY:
888 
889         AcpiDbDisplayHistory ();
890         break;
891 
892     case CMD_HISTORY_EXE: /* ! command */
893 
894         CommandLine = AcpiDbGetFromHistory (AcpiGbl_DbArgs[1]);
895         if (!CommandLine)
896         {
897             return (AE_CTRL_TRUE);
898         }
899 
900         Status = AcpiDbCommandDispatch (CommandLine, WalkState, Op);
901         return (Status);
902 
903     case CMD_HISTORY_LAST: /* !! command */
904 
905         CommandLine = AcpiDbGetFromHistory (NULL);
906         if (!CommandLine)
907         {
908             return (AE_CTRL_TRUE);
909         }
910 
911         Status = AcpiDbCommandDispatch (CommandLine, WalkState, Op);
912         return (Status);
913 
914     case CMD_INFORMATION:
915 
916         AcpiDbDisplayMethodInfo (Op);
917         break;
918 
919     case CMD_INTEGRITY:
920 
921         AcpiDbCheckIntegrity ();
922         break;
923 
924     case CMD_INTO:
925 
926         if (Op)
927         {
928             AcpiGbl_CmSingleStep = TRUE;
929             return (AE_OK);
930         }
931         break;
932 
933     case CMD_LEVEL:
934 
935         if (ParamCount == 0)
936         {
937             AcpiOsPrintf (
938                 "Current debug level for file output is:    %8.8lX\n",
939                 AcpiGbl_DbDebugLevel);
940             AcpiOsPrintf (
941                 "Current debug level for console output is: %8.8lX\n",
942                 AcpiGbl_DbConsoleDebugLevel);
943         }
944         else if (ParamCount == 2)
945         {
946             Temp = AcpiGbl_DbConsoleDebugLevel;
947             AcpiGbl_DbConsoleDebugLevel = strtoul (AcpiGbl_DbArgs[1],
948                                             NULL, 16);
949             AcpiOsPrintf (
950                 "Debug Level for console output was %8.8lX, now %8.8lX\n",
951                 Temp, AcpiGbl_DbConsoleDebugLevel);
952         }
953         else
954         {
955             Temp = AcpiGbl_DbDebugLevel;
956             AcpiGbl_DbDebugLevel = strtoul (AcpiGbl_DbArgs[1], NULL, 16);
957             AcpiOsPrintf (
958                 "Debug Level for file output was %8.8lX, now %8.8lX\n",
959                 Temp, AcpiGbl_DbDebugLevel);
960         }
961         break;
962 
963     case CMD_LIST:
964 
965         AcpiDbDisassembleAml (AcpiGbl_DbArgs[1], Op);
966         break;
967 
968     case CMD_LOCKS:
969 
970         AcpiDbDisplayLocks ();
971         break;
972 
973     case CMD_LOCALS:
974 
975         AcpiDbDisplayLocals ();
976         break;
977 
978     case CMD_METHODS:
979 
980         Status = AcpiDbDisplayObjects ("METHOD", AcpiGbl_DbArgs[1]);
981         break;
982 
983     case CMD_NAMESPACE:
984 
985         AcpiDbDumpNamespace (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
986         break;
987 
988     case CMD_NOTIFY:
989 
990         Temp = strtoul (AcpiGbl_DbArgs[2], NULL, 0);
991         AcpiDbSendNotify (AcpiGbl_DbArgs[1], Temp);
992         break;
993 
994     case CMD_OBJECTS:
995 
996         AcpiUtStrupr (AcpiGbl_DbArgs[1]);
997         Status = AcpiDbDisplayObjects (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
998         break;
999 
1000     case CMD_OSI:
1001 
1002         AcpiDbDisplayInterfaces (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1003         break;
1004 
1005     case CMD_OWNER:
1006 
1007         AcpiDbDumpNamespaceByOwner (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1008         break;
1009 
1010     case CMD_PATHS:
1011 
1012         AcpiDbDumpNamespacePaths ();
1013         break;
1014 
1015     case CMD_PREFIX:
1016 
1017         AcpiDbSetScope (AcpiGbl_DbArgs[1]);
1018         break;
1019 
1020     case CMD_REFERENCES:
1021 
1022         AcpiDbFindReferences (AcpiGbl_DbArgs[1]);
1023         break;
1024 
1025     case CMD_RESOURCES:
1026 
1027         AcpiDbDisplayResources (AcpiGbl_DbArgs[1]);
1028         break;
1029 
1030     case CMD_RESULTS:
1031 
1032         AcpiDbDisplayResults ();
1033         break;
1034 
1035     case CMD_SET:
1036 
1037         AcpiDbSetMethodData (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2],
1038             AcpiGbl_DbArgs[3]);
1039         break;
1040 
1041     case CMD_STATS:
1042 
1043         Status = AcpiDbDisplayStatistics (AcpiGbl_DbArgs[1]);
1044         break;
1045 
1046     case CMD_STOP:
1047 
1048         return (AE_NOT_IMPLEMENTED);
1049 
1050     case CMD_TABLES:
1051 
1052         AcpiDbDisplayTableInfo (AcpiGbl_DbArgs[1]);
1053         break;
1054 
1055     case CMD_TEMPLATE:
1056 
1057         AcpiDbDisplayTemplate (AcpiGbl_DbArgs[1]);
1058         break;
1059 
1060     case CMD_TRACE:
1061 
1062         AcpiDbTrace (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2], AcpiGbl_DbArgs[3]);
1063         break;
1064 
1065     case CMD_TREE:
1066 
1067         AcpiDbDisplayCallingTree ();
1068         break;
1069 
1070     case CMD_TYPE:
1071 
1072         AcpiDbDisplayObjectType (AcpiGbl_DbArgs[1]);
1073         break;
1074 
1075 #ifdef ACPI_APPLICATION
1076 
1077     /* Hardware simulation commands. */
1078 
1079     case CMD_ENABLEACPI:
1080 #if (!ACPI_REDUCED_HARDWARE)
1081 
1082         Status = AcpiEnable();
1083         if (ACPI_FAILURE(Status))
1084         {
1085             AcpiOsPrintf("AcpiEnable failed (Status=%X)\n", Status);
1086             return (Status);
1087         }
1088 #endif /* !ACPI_REDUCED_HARDWARE */
1089         break;
1090 
1091     case CMD_EVENT:
1092 
1093         AcpiOsPrintf ("Event command not implemented\n");
1094         break;
1095 
1096     case CMD_GPE:
1097 
1098         AcpiDbGenerateGpe (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1099         break;
1100 
1101     case CMD_GPES:
1102 
1103         AcpiDbDisplayGpes ();
1104         break;
1105 
1106     case CMD_SCI:
1107 
1108         AcpiDbGenerateSci ();
1109         break;
1110 
1111     case CMD_SLEEP:
1112 
1113         Status = AcpiDbSleep (AcpiGbl_DbArgs[1]);
1114         break;
1115 
1116     /* File I/O commands. */
1117 
1118     case CMD_CLOSE:
1119 
1120         AcpiDbCloseDebugFile ();
1121         break;
1122 
1123     case CMD_LOAD:
1124 
1125         Status = AcpiDbGetTableFromFile (AcpiGbl_DbArgs[1], NULL, FALSE);
1126         break;
1127 
1128     case CMD_OPEN:
1129 
1130         AcpiDbOpenDebugFile (AcpiGbl_DbArgs[1]);
1131         break;
1132 
1133     /* User space commands. */
1134 
1135     case CMD_TERMINATE:
1136 
1137         AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT);
1138         AcpiUtSubsystemShutdown ();
1139 
1140         /*
1141          * TBD: [Restructure] Need some way to re-initialize without
1142          * re-creating the semaphores!
1143          */
1144 
1145         /*  AcpiInitialize (NULL);  */
1146         break;
1147 
1148     case CMD_THREADS:
1149 
1150         AcpiDbCreateExecutionThreads (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2],
1151             AcpiGbl_DbArgs[3]);
1152         break;
1153 
1154     /* Debug test commands. */
1155 
1156     case CMD_PREDEFINED:
1157 
1158         AcpiDbCheckPredefinedNames ();
1159         break;
1160 
1161     case CMD_TEST:
1162 
1163         AcpiDbExecuteTest (AcpiGbl_DbArgs[1]);
1164         break;
1165 
1166     case CMD_UNLOAD:
1167 
1168         AcpiDbUnloadAcpiTable (AcpiGbl_DbArgs[1]);
1169         break;
1170 #endif
1171 
1172     case CMD_EXIT:
1173     case CMD_QUIT:
1174 
1175         if (Op)
1176         {
1177             AcpiOsPrintf ("Method execution terminated\n");
1178             return (AE_CTRL_TERMINATE);
1179         }
1180 
1181         if (!AcpiGbl_DbOutputToFile)
1182         {
1183             AcpiDbgLevel = ACPI_DEBUG_DEFAULT;
1184         }
1185 
1186 #ifdef ACPI_APPLICATION
1187         AcpiDbCloseDebugFile ();
1188 #endif
1189         AcpiGbl_DbTerminateThreads = TRUE;
1190         return (AE_CTRL_TERMINATE);
1191 
1192     case CMD_NOT_FOUND:
1193     default:
1194 
1195         AcpiOsPrintf ("%s: unknown command\n", AcpiGbl_DbArgs[0]);
1196         return (AE_CTRL_TRUE);
1197     }
1198 
1199     if (ACPI_SUCCESS (Status))
1200     {
1201         Status = AE_CTRL_TRUE;
1202     }
1203 
1204     return (Status);
1205 }
1206 
1207 
1208 /*******************************************************************************
1209  *
1210  * FUNCTION:    AcpiDbExecuteThread
1211  *
1212  * PARAMETERS:  Context         - Not used
1213  *
1214  * RETURN:      None
1215  *
1216  * DESCRIPTION: Debugger execute thread. Waits for a command line, then
1217  *              simply dispatches it.
1218  *
1219  ******************************************************************************/
1220 
1221 void ACPI_SYSTEM_XFACE
1222 AcpiDbExecuteThread (
1223     void                    *Context)
1224 {
1225     ACPI_STATUS             Status = AE_OK;
1226     ACPI_STATUS             MStatus;
1227 
1228 
1229     while (Status != AE_CTRL_TERMINATE)
1230     {
1231         AcpiGbl_MethodExecuting = FALSE;
1232         AcpiGbl_StepToNextCall = FALSE;
1233 
1234         MStatus = AcpiOsAcquireMutex (AcpiGbl_DbCommandReady,
1235             ACPI_WAIT_FOREVER);
1236         if (ACPI_FAILURE (MStatus))
1237         {
1238             return;
1239         }
1240 
1241         Status = AcpiDbCommandDispatch (AcpiGbl_DbLineBuf, NULL, NULL);
1242 
1243         AcpiOsReleaseMutex (AcpiGbl_DbCommandComplete);
1244     }
1245 }
1246 
1247 
1248 /*******************************************************************************
1249  *
1250  * FUNCTION:    AcpiDbSingleThread
1251  *
1252  * PARAMETERS:  None
1253  *
1254  * RETURN:      None
1255  *
1256  * DESCRIPTION: Debugger execute thread. Waits for a command line, then
1257  *              simply dispatches it.
1258  *
1259  ******************************************************************************/
1260 
1261 static void
1262 AcpiDbSingleThread (
1263     void)
1264 {
1265 
1266     AcpiGbl_MethodExecuting = FALSE;
1267     AcpiGbl_StepToNextCall = FALSE;
1268 
1269     (void) AcpiDbCommandDispatch (AcpiGbl_DbLineBuf, NULL, NULL);
1270 }
1271 
1272 
1273 /*******************************************************************************
1274  *
1275  * FUNCTION:    AcpiDbUserCommands
1276  *
1277  * PARAMETERS:  Prompt              - User prompt (depends on mode)
1278  *              Op                  - Current executing parse op
1279  *
1280  * RETURN:      None
1281  *
1282  * DESCRIPTION: Command line execution for the AML debugger. Commands are
1283  *              matched and dispatched here.
1284  *
1285  ******************************************************************************/
1286 
1287 ACPI_STATUS
1288 AcpiDbUserCommands (
1289     char                    Prompt,
1290     ACPI_PARSE_OBJECT       *Op)
1291 {
1292     ACPI_STATUS             Status = AE_OK;
1293 
1294 
1295     AcpiOsPrintf ("\n");
1296 
1297     /* TBD: [Restructure] Need a separate command line buffer for step mode */
1298 
1299     while (!AcpiGbl_DbTerminateThreads)
1300     {
1301         /* Force output to console until a command is entered */
1302 
1303         AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);
1304 
1305         /* Different prompt if method is executing */
1306 
1307         if (!AcpiGbl_MethodExecuting)
1308         {
1309             AcpiOsPrintf ("%1c ", ACPI_DEBUGGER_COMMAND_PROMPT);
1310         }
1311         else
1312         {
1313             AcpiOsPrintf ("%1c ", ACPI_DEBUGGER_EXECUTE_PROMPT);
1314         }
1315 
1316         /* Get the user input line */
1317 
1318         Status = AcpiOsGetLine (AcpiGbl_DbLineBuf,
1319             ACPI_DB_LINE_BUFFER_SIZE, NULL);
1320         if (ACPI_FAILURE (Status))
1321         {
1322             ACPI_EXCEPTION ((AE_INFO, Status, "While parsing command line"));
1323             return (Status);
1324         }
1325 
1326         /* Check for single or multithreaded debug */
1327 
1328         if (AcpiGbl_DebuggerConfiguration & DEBUGGER_MULTI_THREADED)
1329         {
1330             /*
1331              * Signal the debug thread that we have a command to execute,
1332              * and wait for the command to complete.
1333              */
1334             AcpiOsReleaseMutex (AcpiGbl_DbCommandReady);
1335             if (ACPI_FAILURE (Status))
1336             {
1337                 return (Status);
1338             }
1339 
1340             Status = AcpiOsAcquireMutex (AcpiGbl_DbCommandComplete,
1341                 ACPI_WAIT_FOREVER);
1342             if (ACPI_FAILURE (Status))
1343             {
1344                 return (Status);
1345             }
1346         }
1347         else
1348         {
1349             /* Just call to the command line interpreter */
1350 
1351             AcpiDbSingleThread ();
1352         }
1353     }
1354 
1355     /* Shut down the debugger */
1356 
1357     AcpiTerminateDebugger ();
1358 
1359     /*
1360      * Only this thread (the original thread) should actually terminate the
1361      * subsystem, because all the semaphores are deleted during termination
1362      */
1363     Status = AcpiTerminate ();
1364     return (Status);
1365 }
1366 
1367 #endif  /* ACPI_DEBUGGER */
1368