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dbinput.c revision 1.22
      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 
   1032         Status = AcpiDbDisplayObjects (__UNCONST("METHOD"), AcpiGbl_DbArgs[1]);
   1033         break;
   1034 
   1035     case CMD_NAMESPACE:
   1036 
   1037         AcpiDbDumpNamespace (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
   1038         break;
   1039 
   1040     case CMD_NOTIFY:
   1041 
   1042         Temp = strtoul (AcpiGbl_DbArgs[2], NULL, 0);
   1043         AcpiDbSendNotify (AcpiGbl_DbArgs[1], Temp);
   1044         break;
   1045 
   1046     case CMD_OBJECTS:
   1047 
   1048         AcpiUtStrupr (AcpiGbl_DbArgs[1]);
   1049         Status = AcpiDbDisplayObjects (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
   1050         break;
   1051 
   1052     case CMD_OSI:
   1053 
   1054         AcpiDbDisplayInterfaces (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
   1055         break;
   1056 
   1057     case CMD_OWNER:
   1058 
   1059         AcpiDbDumpNamespaceByOwner (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
   1060         break;
   1061 
   1062     case CMD_PATHS:
   1063 
   1064         AcpiDbDumpNamespacePaths ();
   1065         break;
   1066 
   1067     case CMD_PREFIX:
   1068 
   1069         AcpiDbSetScope (AcpiGbl_DbArgs[1]);
   1070         break;
   1071 
   1072     case CMD_REFERENCES:
   1073 
   1074         AcpiDbFindReferences (AcpiGbl_DbArgs[1]);
   1075         break;
   1076 
   1077     case CMD_RESOURCES:
   1078 
   1079         AcpiDbDisplayResources (AcpiGbl_DbArgs[1]);
   1080         break;
   1081 
   1082     case CMD_RESULTS:
   1083 
   1084         AcpiDbDisplayResults ();
   1085         break;
   1086 
   1087     case CMD_SET:
   1088 
   1089         AcpiDbSetMethodData (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2],
   1090             AcpiGbl_DbArgs[3]);
   1091         break;
   1092 
   1093     case CMD_STATS:
   1094 
   1095         Status = AcpiDbDisplayStatistics (AcpiGbl_DbArgs[1]);
   1096         break;
   1097 
   1098     case CMD_STOP:
   1099 
   1100         return (AE_NOT_IMPLEMENTED);
   1101 
   1102     case CMD_TABLES:
   1103 
   1104         AcpiDbDisplayTableInfo (AcpiGbl_DbArgs[1]);
   1105         break;
   1106 
   1107     case CMD_TEMPLATE:
   1108 
   1109         AcpiDbDisplayTemplate (AcpiGbl_DbArgs[1]);
   1110         break;
   1111 
   1112     case CMD_TRACE:
   1113 
   1114         AcpiDbTrace (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2], AcpiGbl_DbArgs[3]);
   1115         break;
   1116 
   1117     case CMD_TREE:
   1118 
   1119         AcpiDbDisplayCallingTree ();
   1120         break;
   1121 
   1122     case CMD_TYPE:
   1123 
   1124         AcpiDbDisplayObjectType (AcpiGbl_DbArgs[1]);
   1125         break;
   1126 
   1127 #ifdef ACPI_APPLICATION
   1128 
   1129     /* Hardware simulation commands. */
   1130 
   1131     case CMD_ENABLEACPI:
   1132 #if (!ACPI_REDUCED_HARDWARE)
   1133 
   1134         Status = AcpiEnable();
   1135         if (ACPI_FAILURE(Status))
   1136         {
   1137             AcpiOsPrintf("AcpiEnable failed (Status=%X)\n", Status);
   1138             return (Status);
   1139         }
   1140 #endif /* !ACPI_REDUCED_HARDWARE */
   1141         break;
   1142 
   1143     case CMD_EVENT:
   1144 
   1145         AcpiOsPrintf ("Event command not implemented\n");
   1146         break;
   1147 
   1148     case CMD_GPE:
   1149 
   1150         AcpiDbGenerateGpe (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
   1151         break;
   1152 
   1153     case CMD_GPES:
   1154 
   1155         AcpiDbDisplayGpes ();
   1156         break;
   1157 
   1158     case CMD_SCI:
   1159 
   1160         AcpiDbGenerateSci ();
   1161         break;
   1162 
   1163     case CMD_SLEEP:
   1164 
   1165         Status = AcpiDbSleep (AcpiGbl_DbArgs[1]);
   1166         break;
   1167 
   1168     /* File I/O commands. */
   1169 
   1170     case CMD_CLOSE:
   1171 
   1172         AcpiDbCloseDebugFile ();
   1173         break;
   1174 
   1175     case CMD_LOAD:
   1176         {
   1177             ACPI_NEW_TABLE_DESC     *ListHead = NULL;
   1178 
   1179             Status = AcGetAllTablesFromFile (AcpiGbl_DbArgs[1],
   1180                 ACPI_GET_ALL_TABLES, &ListHead);
   1181             if (ACPI_SUCCESS (Status))
   1182             {
   1183                 AcpiDbLoadTables (ListHead);
   1184             }
   1185         }
   1186         break;
   1187 
   1188     case CMD_OPEN:
   1189 
   1190         AcpiDbOpenDebugFile (AcpiGbl_DbArgs[1]);
   1191         break;
   1192 
   1193     /* User space commands. */
   1194 
   1195     case CMD_TERMINATE:
   1196 
   1197         AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT);
   1198         AcpiUtSubsystemShutdown ();
   1199 
   1200         /*
   1201          * TBD: [Restructure] Need some way to re-initialize without
   1202          * re-creating the semaphores!
   1203          */
   1204 
   1205         AcpiGbl_DbTerminateLoop = TRUE;
   1206         /*  AcpiInitialize (NULL);  */
   1207         break;
   1208 
   1209     case CMD_BACKGROUND:
   1210 
   1211         AcpiDbCreateExecutionThread (AcpiGbl_DbArgs[1], &AcpiGbl_DbArgs[2],
   1212             &AcpiGbl_DbArgTypes[2]);
   1213         break;
   1214 
   1215     case CMD_THREADS:
   1216 
   1217         AcpiDbCreateExecutionThreads (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2],
   1218             AcpiGbl_DbArgs[3]);
   1219         break;
   1220 
   1221     /* Debug test commands. */
   1222 
   1223     case CMD_PREDEFINED:
   1224 
   1225         AcpiDbCheckPredefinedNames ();
   1226         break;
   1227 
   1228     case CMD_TEST:
   1229 
   1230         AcpiDbExecuteTest (AcpiGbl_DbArgs[1]);
   1231         break;
   1232 
   1233     case CMD_UNLOAD:
   1234 
   1235         AcpiDbUnloadAcpiTable (AcpiGbl_DbArgs[1]);
   1236         break;
   1237 #endif
   1238 
   1239     case CMD_EXIT:
   1240     case CMD_QUIT:
   1241 
   1242         if (Op)
   1243         {
   1244             AcpiOsPrintf ("Method execution terminated\n");
   1245             return (AE_CTRL_TERMINATE);
   1246         }
   1247 
   1248         if (!AcpiGbl_DbOutputToFile)
   1249         {
   1250             AcpiDbgLevel = ACPI_DEBUG_DEFAULT;
   1251         }
   1252 
   1253 #ifdef ACPI_APPLICATION
   1254         AcpiDbCloseDebugFile ();
   1255 #endif
   1256         AcpiGbl_DbTerminateLoop = TRUE;
   1257         return (AE_CTRL_TERMINATE);
   1258 
   1259     case CMD_NOT_FOUND:
   1260     default:
   1261 
   1262         AcpiOsPrintf ("%s: unknown command\n", AcpiGbl_DbArgs[0]);
   1263         return (AE_CTRL_TRUE);
   1264     }
   1265 
   1266     if (ACPI_SUCCESS (Status))
   1267     {
   1268         Status = AE_CTRL_TRUE;
   1269     }
   1270 
   1271     return (Status);
   1272 }
   1273 
   1274 
   1275 /*******************************************************************************
   1276  *
   1277  * FUNCTION:    AcpiDbExecuteThread
   1278  *
   1279  * PARAMETERS:  Context         - Not used
   1280  *
   1281  * RETURN:      None
   1282  *
   1283  * DESCRIPTION: Debugger execute thread. Waits for a command line, then
   1284  *              simply dispatches it.
   1285  *
   1286  ******************************************************************************/
   1287 
   1288 void ACPI_SYSTEM_XFACE
   1289 AcpiDbExecuteThread (
   1290     void                    *Context)
   1291 {
   1292 
   1293     (void) AcpiDbUserCommands ();
   1294     AcpiGbl_DbThreadsTerminated = TRUE;
   1295 }
   1296 
   1297 
   1298 /*******************************************************************************
   1299  *
   1300  * FUNCTION:    AcpiDbUserCommands
   1301  *
   1302  * PARAMETERS:  None
   1303  *
   1304  * RETURN:      None
   1305  *
   1306  * DESCRIPTION: Command line execution for the AML debugger. Commands are
   1307  *              matched and dispatched here.
   1308  *
   1309  ******************************************************************************/
   1310 
   1311 ACPI_STATUS
   1312 AcpiDbUserCommands (
   1313     void)
   1314 {
   1315     ACPI_STATUS             Status = AE_OK;
   1316 
   1317 
   1318     AcpiOsPrintf ("\n");
   1319 
   1320     /* TBD: [Restructure] Need a separate command line buffer for step mode */
   1321 
   1322     while (!AcpiGbl_DbTerminateLoop)
   1323     {
   1324         /* Wait the readiness of the command */
   1325 
   1326         Status = AcpiOsWaitCommandReady ();
   1327         if (ACPI_FAILURE (Status))
   1328         {
   1329             break;
   1330         }
   1331 
   1332         /* Just call to the command line interpreter */
   1333 
   1334         AcpiGbl_MethodExecuting = FALSE;
   1335         AcpiGbl_StepToNextCall = FALSE;
   1336 
   1337         (void) AcpiDbCommandDispatch (AcpiGbl_DbLineBuf, NULL, NULL);
   1338 
   1339         /* Notify the completion of the command */
   1340 
   1341         Status = AcpiOsNotifyCommandComplete ();
   1342         if (ACPI_FAILURE (Status))
   1343         {
   1344             break;
   1345         }
   1346     }
   1347 
   1348     if (ACPI_FAILURE (Status) && Status != AE_CTRL_TERMINATE)
   1349     {
   1350         ACPI_EXCEPTION ((AE_INFO, Status, "While parsing command line"));
   1351     }
   1352     return (Status);
   1353 }
   1354