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dbinput.c revision 1.1.1.18
      1 /*******************************************************************************
      2  *
      3  * Module Name: dbinput - user front-end to the AML debugger
      4  *
      5  ******************************************************************************/
      6 
      7 /*
      8  * Copyright (C) 2000 - 2019, 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     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 */
    533 
    534     if (*String == ' ')
    535     {
    536         while (*String && (*String == ' '))
    537         {
    538             String++;
    539         }
    540 
    541         if (!(*String))
    542         {
    543             return (NULL);
    544         }
    545     }
    546 
    547     switch (*String)
    548     {
    549     case '"':
    550 
    551         /* This is a quoted string, scan until closing quote */
    552 
    553         String++;
    554         Start = String;
    555         Type = ACPI_TYPE_STRING;
    556 
    557         /* Find end of string */
    558 
    559         while (*String && (*String != '"'))
    560         {
    561             String++;
    562         }
    563         break;
    564 
    565     case '(':
    566 
    567         /* This is the start of a buffer, scan until closing paren */
    568 
    569         String++;
    570         Start = String;
    571         Type = ACPI_TYPE_BUFFER;
    572 
    573         /* Find end of buffer */
    574 
    575         while (*String && (*String != ')'))
    576         {
    577             String++;
    578         }
    579         break;
    580 
    581     case '{':
    582 
    583         /* This is the start of a field unit, scan until closing brace */
    584 
    585         String++;
    586         Start = String;
    587         Type = ACPI_TYPE_FIELD_UNIT;
    588 
    589         /* Find end of buffer */
    590 
    591         while (*String && (*String != '}'))
    592         {
    593             String++;
    594         }
    595         break;
    596 
    597     case '[':
    598 
    599         /* This is the start of a package, scan until closing bracket */
    600 
    601         String++;
    602         Depth = 1;
    603         Start = String;
    604         Type = ACPI_TYPE_PACKAGE;
    605 
    606         /* Find end of package (closing bracket) */
    607 
    608         while (*String)
    609         {
    610             /* Handle String package elements */
    611 
    612             if (*String == '"')
    613             {
    614                 /* Find end of string */
    615 
    616                 String++;
    617                 while (*String && (*String != '"'))
    618                 {
    619                     String++;
    620                 }
    621                 if (!(*String))
    622                 {
    623                     break;
    624                 }
    625             }
    626             else if (*String == '[')
    627             {
    628                 Depth++;         /* A nested package declaration */
    629             }
    630             else if (*String == ']')
    631             {
    632                 Depth--;
    633                 if (Depth == 0) /* Found final package closing bracket */
    634                 {
    635                     break;
    636                 }
    637             }
    638 
    639             String++;
    640         }
    641         break;
    642 
    643     default:
    644 
    645         Start = String;
    646 
    647         /* Find end of token */
    648 
    649         while (*String && (*String != ' '))
    650         {
    651             String++;
    652         }
    653         break;
    654     }
    655 
    656     if (!(*String))
    657     {
    658         *Next = NULL;
    659     }
    660     else
    661     {
    662         *String = 0;
    663         *Next = String + 1;
    664     }
    665 
    666     *ReturnType = Type;
    667     return (Start);
    668 }
    669 
    670 
    671 /*******************************************************************************
    672  *
    673  * FUNCTION:    AcpiDbGetLine
    674  *
    675  * PARAMETERS:  InputBuffer         - Command line buffer
    676  *
    677  * RETURN:      Count of arguments to the command
    678  *
    679  * DESCRIPTION: Get the next command line from the user. Gets entire line
    680  *              up to the next newline
    681  *
    682  ******************************************************************************/
    683 
    684 static UINT32
    685 AcpiDbGetLine (
    686     char                    *InputBuffer)
    687 {
    688     UINT32                  i;
    689     UINT32                  Count;
    690     char                    *Next;
    691     char                    *This;
    692 
    693 
    694     if (AcpiUtSafeStrcpy (AcpiGbl_DbParsedBuf, sizeof (AcpiGbl_DbParsedBuf),
    695         InputBuffer))
    696     {
    697         AcpiOsPrintf (
    698             "Buffer overflow while parsing input line (max %u characters)\n",
    699             (UINT32) sizeof (AcpiGbl_DbParsedBuf));
    700         return (0);
    701     }
    702 
    703     This = AcpiGbl_DbParsedBuf;
    704     for (i = 0; i < ACPI_DEBUGGER_MAX_ARGS; i++)
    705     {
    706         AcpiGbl_DbArgs[i] = AcpiDbGetNextToken (This, &Next,
    707             &AcpiGbl_DbArgTypes[i]);
    708         if (!AcpiGbl_DbArgs[i])
    709         {
    710             break;
    711         }
    712 
    713         This = Next;
    714     }
    715 
    716     /* Uppercase the actual command */
    717 
    718     AcpiUtStrupr (AcpiGbl_DbArgs[0]);
    719 
    720     Count = i;
    721     if (Count)
    722     {
    723         Count--;  /* Number of args only */
    724     }
    725 
    726     return (Count);
    727 }
    728 
    729 
    730 /*******************************************************************************
    731  *
    732  * FUNCTION:    AcpiDbMatchCommand
    733  *
    734  * PARAMETERS:  UserCommand             - User command line
    735  *
    736  * RETURN:      Index into command array, -1 if not found
    737  *
    738  * DESCRIPTION: Search command array for a command match
    739  *
    740  ******************************************************************************/
    741 
    742 static UINT32
    743 AcpiDbMatchCommand (
    744     char                    *UserCommand)
    745 {
    746     UINT32                  i;
    747 
    748 
    749     if (!UserCommand || UserCommand[0] == 0)
    750     {
    751         return (CMD_NULL);
    752     }
    753 
    754     for (i = CMD_FIRST_VALID; AcpiGbl_DbCommands[i].Name; i++)
    755     {
    756         if (strstr (
    757             ACPI_CAST_PTR (char, AcpiGbl_DbCommands[i].Name), UserCommand) ==
    758             AcpiGbl_DbCommands[i].Name)
    759         {
    760             return (i);
    761         }
    762     }
    763 
    764     /* Command not recognized */
    765 
    766     return (CMD_NOT_FOUND);
    767 }
    768 
    769 
    770 /*******************************************************************************
    771  *
    772  * FUNCTION:    AcpiDbCommandDispatch
    773  *
    774  * PARAMETERS:  InputBuffer         - Command line buffer
    775  *              WalkState           - Current walk
    776  *              Op                  - Current (executing) parse op
    777  *
    778  * RETURN:      Status
    779  *
    780  * DESCRIPTION: Command dispatcher.
    781  *
    782  ******************************************************************************/
    783 
    784 ACPI_STATUS
    785 AcpiDbCommandDispatch (
    786     char                    *InputBuffer,
    787     ACPI_WALK_STATE         *WalkState,
    788     ACPI_PARSE_OBJECT       *Op)
    789 {
    790     UINT32                  Temp;
    791     UINT64                  Temp64;
    792     UINT32                  CommandIndex;
    793     UINT32                  ParamCount;
    794     char                    *CommandLine;
    795     ACPI_STATUS             Status = AE_CTRL_TRUE;
    796 
    797 
    798     /* If AcpiTerminate has been called, terminate this thread */
    799 
    800     if (AcpiGbl_DbTerminateLoop)
    801     {
    802         return (AE_CTRL_TERMINATE);
    803     }
    804 
    805     /* Find command and add to the history buffer */
    806 
    807     ParamCount = AcpiDbGetLine (InputBuffer);
    808     CommandIndex = AcpiDbMatchCommand (AcpiGbl_DbArgs[0]);
    809 
    810     /*
    811      * We don't want to add the !! command to the history buffer. It
    812      * would cause an infinite loop because it would always be the
    813      * previous command.
    814      */
    815     if (CommandIndex != CMD_HISTORY_LAST)
    816     {
    817         AcpiDbAddToHistory (InputBuffer);
    818     }
    819 
    820     /* Verify that we have the minimum number of params */
    821 
    822     if (ParamCount < AcpiGbl_DbCommands[CommandIndex].MinArgs)
    823     {
    824         AcpiOsPrintf ("%u parameters entered, [%s] requires %u parameters\n",
    825             ParamCount, AcpiGbl_DbCommands[CommandIndex].Name,
    826             AcpiGbl_DbCommands[CommandIndex].MinArgs);
    827 
    828         AcpiDbDisplayCommandInfo (
    829             AcpiGbl_DbCommands[CommandIndex].Name, FALSE);
    830         return (AE_CTRL_TRUE);
    831     }
    832 
    833     /* Decode and dispatch the command */
    834 
    835     switch (CommandIndex)
    836     {
    837     case CMD_NULL:
    838 
    839         if (Op)
    840         {
    841             return (AE_OK);
    842         }
    843         break;
    844 
    845     case CMD_ALLOCATIONS:
    846 
    847 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
    848         AcpiUtDumpAllocations ((UINT32) -1, NULL);
    849 #endif
    850         break;
    851 
    852     case CMD_ARGS:
    853     case CMD_ARGUMENTS:
    854 
    855         AcpiDbDisplayArguments ();
    856         break;
    857 
    858     case CMD_BREAKPOINT:
    859 
    860         AcpiDbSetMethodBreakpoint (AcpiGbl_DbArgs[1], WalkState, Op);
    861         break;
    862 
    863     case CMD_BUSINFO:
    864 
    865         AcpiDbGetBusInfo ();
    866         break;
    867 
    868     case CMD_CALL:
    869 
    870         AcpiDbSetMethodCallBreakpoint (Op);
    871         Status = AE_OK;
    872         break;
    873 
    874     case CMD_DEBUG:
    875 
    876         AcpiDbExecute (AcpiGbl_DbArgs[1],
    877             &AcpiGbl_DbArgs[2], &AcpiGbl_DbArgTypes[2], EX_SINGLE_STEP);
    878         break;
    879 
    880     case CMD_DISASSEMBLE:
    881     case CMD_DISASM:
    882 
    883 #ifdef ACPI_DISASSEMBLER
    884         (void) AcpiDbDisassembleMethod (AcpiGbl_DbArgs[1]);
    885 #else
    886         AcpiOsPrintf ("The AML Disassembler is not configured/present\n");
    887 #endif
    888         break;
    889 
    890     case CMD_DUMP:
    891 
    892         AcpiDbDecodeAndDisplayObject (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
    893         break;
    894 
    895     case CMD_EVALUATE:
    896     case CMD_EXECUTE:
    897 
    898         AcpiDbExecute (AcpiGbl_DbArgs[1],
    899             &AcpiGbl_DbArgs[2], &AcpiGbl_DbArgTypes[2], EX_NO_SINGLE_STEP);
    900         break;
    901 
    902     case CMD_FIND:
    903 
    904         Status = AcpiDbFindNameInNamespace (AcpiGbl_DbArgs[1]);
    905         break;
    906 
    907     case CMD_FIELDS:
    908 
    909         Status = AcpiUtStrtoul64 (AcpiGbl_DbArgs[1], &Temp64);
    910 
    911         if (ACPI_FAILURE (Status) || Temp64 >= ACPI_NUM_PREDEFINED_REGIONS)
    912         {
    913             AcpiOsPrintf (
    914                 "Invalid address space ID: must be between 0 and %u inclusive\n",
    915                 ACPI_NUM_PREDEFINED_REGIONS - 1);
    916             return (AE_OK);
    917         }
    918 
    919         Status = AcpiDbDisplayFields ((UINT32) Temp64);
    920         break;
    921 
    922     case CMD_GO:
    923 
    924         AcpiGbl_CmSingleStep = FALSE;
    925         return (AE_OK);
    926 
    927     case CMD_HANDLERS:
    928 
    929         AcpiDbDisplayHandlers ();
    930         break;
    931 
    932     case CMD_HELP:
    933     case CMD_HELP2:
    934 
    935         AcpiDbDisplayHelp (AcpiGbl_DbArgs[1]);
    936         break;
    937 
    938     case CMD_HISTORY:
    939 
    940         AcpiDbDisplayHistory ();
    941         break;
    942 
    943     case CMD_HISTORY_EXE: /* ! command */
    944 
    945         CommandLine = AcpiDbGetFromHistory (AcpiGbl_DbArgs[1]);
    946         if (!CommandLine)
    947         {
    948             return (AE_CTRL_TRUE);
    949         }
    950 
    951         Status = AcpiDbCommandDispatch (CommandLine, WalkState, Op);
    952         return (Status);
    953 
    954     case CMD_HISTORY_LAST: /* !! command */
    955 
    956         CommandLine = AcpiDbGetFromHistory (NULL);
    957         if (!CommandLine)
    958         {
    959             return (AE_CTRL_TRUE);
    960         }
    961 
    962         Status = AcpiDbCommandDispatch (CommandLine, WalkState, Op);
    963         return (Status);
    964 
    965     case CMD_INFORMATION:
    966 
    967         AcpiDbDisplayMethodInfo (Op);
    968         break;
    969 
    970     case CMD_INTEGRITY:
    971 
    972         AcpiDbCheckIntegrity ();
    973         break;
    974 
    975     case CMD_INTO:
    976 
    977         if (Op)
    978         {
    979             AcpiGbl_CmSingleStep = TRUE;
    980             return (AE_OK);
    981         }
    982         break;
    983 
    984     case CMD_LEVEL:
    985 
    986         if (ParamCount == 0)
    987         {
    988             AcpiOsPrintf (
    989                 "Current debug level for file output is:    %8.8X\n",
    990                 AcpiGbl_DbDebugLevel);
    991             AcpiOsPrintf (
    992                 "Current debug level for console output is: %8.8X\n",
    993                 AcpiGbl_DbConsoleDebugLevel);
    994         }
    995         else if (ParamCount == 2)
    996         {
    997             Temp = AcpiGbl_DbConsoleDebugLevel;
    998             AcpiGbl_DbConsoleDebugLevel =
    999                 strtoul (AcpiGbl_DbArgs[1], NULL, 16);
   1000             AcpiOsPrintf (
   1001                 "Debug Level for console output was %8.8X, now %8.8X\n",
   1002                 Temp, AcpiGbl_DbConsoleDebugLevel);
   1003         }
   1004         else
   1005         {
   1006             Temp = AcpiGbl_DbDebugLevel;
   1007             AcpiGbl_DbDebugLevel = strtoul (AcpiGbl_DbArgs[1], NULL, 16);
   1008             AcpiOsPrintf (
   1009                 "Debug Level for file output was %8.8X, now %8.8X\n",
   1010                 Temp, AcpiGbl_DbDebugLevel);
   1011         }
   1012         break;
   1013 
   1014     case CMD_LIST:
   1015 
   1016 #ifdef ACPI_DISASSEMBLER
   1017         AcpiDbDisassembleAml (AcpiGbl_DbArgs[1], Op);
   1018 #else
   1019         AcpiOsPrintf ("The AML Disassembler is not configured/present\n");
   1020 #endif
   1021         break;
   1022 
   1023     case CMD_LOCKS:
   1024 
   1025         AcpiDbDisplayLocks ();
   1026         break;
   1027 
   1028     case CMD_LOCALS:
   1029 
   1030         AcpiDbDisplayLocals ();
   1031         break;
   1032 
   1033     case CMD_METHODS:
   1034 
   1035         Status = AcpiDbDisplayObjects ("METHOD", AcpiGbl_DbArgs[1]);
   1036         break;
   1037 
   1038     case CMD_NAMESPACE:
   1039 
   1040         AcpiDbDumpNamespace (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
   1041         break;
   1042 
   1043     case CMD_NOTIFY:
   1044 
   1045         Temp = strtoul (AcpiGbl_DbArgs[2], NULL, 0);
   1046         AcpiDbSendNotify (AcpiGbl_DbArgs[1], Temp);
   1047         break;
   1048 
   1049     case CMD_OBJECTS:
   1050 
   1051         AcpiUtStrupr (AcpiGbl_DbArgs[1]);
   1052         Status = AcpiDbDisplayObjects (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
   1053         break;
   1054 
   1055     case CMD_OSI:
   1056 
   1057         AcpiDbDisplayInterfaces (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
   1058         break;
   1059 
   1060     case CMD_OWNER:
   1061 
   1062         AcpiDbDumpNamespaceByOwner (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
   1063         break;
   1064 
   1065     case CMD_PATHS:
   1066 
   1067         AcpiDbDumpNamespacePaths ();
   1068         break;
   1069 
   1070     case CMD_PREFIX:
   1071 
   1072         AcpiDbSetScope (AcpiGbl_DbArgs[1]);
   1073         break;
   1074 
   1075     case CMD_REFERENCES:
   1076 
   1077         AcpiDbFindReferences (AcpiGbl_DbArgs[1]);
   1078         break;
   1079 
   1080     case CMD_RESOURCES:
   1081 
   1082         AcpiDbDisplayResources (AcpiGbl_DbArgs[1]);
   1083         break;
   1084 
   1085     case CMD_RESULTS:
   1086 
   1087         AcpiDbDisplayResults ();
   1088         break;
   1089 
   1090     case CMD_SET:
   1091 
   1092         AcpiDbSetMethodData (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2],
   1093             AcpiGbl_DbArgs[3]);
   1094         break;
   1095 
   1096     case CMD_STATS:
   1097 
   1098         Status = AcpiDbDisplayStatistics (AcpiGbl_DbArgs[1]);
   1099         break;
   1100 
   1101     case CMD_STOP:
   1102 
   1103         return (AE_NOT_IMPLEMENTED);
   1104 
   1105     case CMD_TABLES:
   1106 
   1107         AcpiDbDisplayTableInfo (AcpiGbl_DbArgs[1]);
   1108         break;
   1109 
   1110     case CMD_TEMPLATE:
   1111 
   1112         AcpiDbDisplayTemplate (AcpiGbl_DbArgs[1]);
   1113         break;
   1114 
   1115     case CMD_TRACE:
   1116 
   1117         AcpiDbTrace (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2], AcpiGbl_DbArgs[3]);
   1118         break;
   1119 
   1120     case CMD_TREE:
   1121 
   1122         AcpiDbDisplayCallingTree ();
   1123         break;
   1124 
   1125     case CMD_TYPE:
   1126 
   1127         AcpiDbDisplayObjectType (AcpiGbl_DbArgs[1]);
   1128         break;
   1129 
   1130 #ifdef ACPI_APPLICATION
   1131 
   1132     /* Hardware simulation commands. */
   1133 
   1134     case CMD_ENABLEACPI:
   1135 #if (!ACPI_REDUCED_HARDWARE)
   1136 
   1137         Status = AcpiEnable();
   1138         if (ACPI_FAILURE(Status))
   1139         {
   1140             AcpiOsPrintf("AcpiEnable failed (Status=%X)\n", Status);
   1141             return (Status);
   1142         }
   1143 #endif /* !ACPI_REDUCED_HARDWARE */
   1144         break;
   1145 
   1146     case CMD_EVENT:
   1147 
   1148         AcpiOsPrintf ("Event command not implemented\n");
   1149         break;
   1150 
   1151     case CMD_GPE:
   1152 
   1153         AcpiDbGenerateGpe (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
   1154         break;
   1155 
   1156     case CMD_GPES:
   1157 
   1158         AcpiDbDisplayGpes ();
   1159         break;
   1160 
   1161     case CMD_SCI:
   1162 
   1163         AcpiDbGenerateSci ();
   1164         break;
   1165 
   1166     case CMD_SLEEP:
   1167 
   1168         Status = AcpiDbSleep (AcpiGbl_DbArgs[1]);
   1169         break;
   1170 
   1171     /* File I/O commands. */
   1172 
   1173     case CMD_CLOSE:
   1174 
   1175         AcpiDbCloseDebugFile ();
   1176         break;
   1177 
   1178     case CMD_LOAD:
   1179         {
   1180             ACPI_NEW_TABLE_DESC     *ListHead = NULL;
   1181 
   1182             Status = AcGetAllTablesFromFile (AcpiGbl_DbArgs[1],
   1183                 ACPI_GET_ALL_TABLES, &ListHead);
   1184             if (ACPI_SUCCESS (Status))
   1185             {
   1186                 AcpiDbLoadTables (ListHead);
   1187             }
   1188         }
   1189         break;
   1190 
   1191     case CMD_OPEN:
   1192 
   1193         AcpiDbOpenDebugFile (AcpiGbl_DbArgs[1]);
   1194         break;
   1195 
   1196     /* User space commands. */
   1197 
   1198     case CMD_TERMINATE:
   1199 
   1200         AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT);
   1201         AcpiUtSubsystemShutdown ();
   1202 
   1203         /*
   1204          * TBD: [Restructure] Need some way to re-initialize without
   1205          * re-creating the semaphores!
   1206          */
   1207 
   1208         AcpiGbl_DbTerminateLoop = TRUE;
   1209         /*  AcpiInitialize (NULL);  */
   1210         break;
   1211 
   1212     case CMD_BACKGROUND:
   1213 
   1214         AcpiDbCreateExecutionThread (AcpiGbl_DbArgs[1], &AcpiGbl_DbArgs[2],
   1215             &AcpiGbl_DbArgTypes[2]);
   1216         break;
   1217 
   1218     case CMD_THREADS:
   1219 
   1220         AcpiDbCreateExecutionThreads (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2],
   1221             AcpiGbl_DbArgs[3]);
   1222         break;
   1223 
   1224     /* Debug test commands. */
   1225 
   1226     case CMD_PREDEFINED:
   1227 
   1228         AcpiDbCheckPredefinedNames ();
   1229         break;
   1230 
   1231     case CMD_TEST:
   1232 
   1233         AcpiDbExecuteTest (AcpiGbl_DbArgs[1]);
   1234         break;
   1235 
   1236     case CMD_UNLOAD:
   1237 
   1238         AcpiDbUnloadAcpiTable (AcpiGbl_DbArgs[1]);
   1239         break;
   1240 #endif
   1241 
   1242     case CMD_EXIT:
   1243     case CMD_QUIT:
   1244 
   1245         if (Op)
   1246         {
   1247             AcpiOsPrintf ("Method execution terminated\n");
   1248             return (AE_CTRL_TERMINATE);
   1249         }
   1250 
   1251         if (!AcpiGbl_DbOutputToFile)
   1252         {
   1253             AcpiDbgLevel = ACPI_DEBUG_DEFAULT;
   1254         }
   1255 
   1256 #ifdef ACPI_APPLICATION
   1257         AcpiDbCloseDebugFile ();
   1258 #endif
   1259         AcpiGbl_DbTerminateLoop = TRUE;
   1260         return (AE_CTRL_TERMINATE);
   1261 
   1262     case CMD_NOT_FOUND:
   1263     default:
   1264 
   1265         AcpiOsPrintf ("%s: unknown command\n", AcpiGbl_DbArgs[0]);
   1266         return (AE_CTRL_TRUE);
   1267     }
   1268 
   1269     if (ACPI_SUCCESS (Status))
   1270     {
   1271         Status = AE_CTRL_TRUE;
   1272     }
   1273 
   1274     return (Status);
   1275 }
   1276 
   1277 
   1278 /*******************************************************************************
   1279  *
   1280  * FUNCTION:    AcpiDbExecuteThread
   1281  *
   1282  * PARAMETERS:  Context         - Not used
   1283  *
   1284  * RETURN:      None
   1285  *
   1286  * DESCRIPTION: Debugger execute thread. Waits for a command line, then
   1287  *              simply dispatches it.
   1288  *
   1289  ******************************************************************************/
   1290 
   1291 void ACPI_SYSTEM_XFACE
   1292 AcpiDbExecuteThread (
   1293     void                    *Context)
   1294 {
   1295 
   1296     (void) AcpiDbUserCommands ();
   1297     AcpiGbl_DbThreadsTerminated = TRUE;
   1298 }
   1299 
   1300 
   1301 /*******************************************************************************
   1302  *
   1303  * FUNCTION:    AcpiDbUserCommands
   1304  *
   1305  * PARAMETERS:  None
   1306  *
   1307  * RETURN:      None
   1308  *
   1309  * DESCRIPTION: Command line execution for the AML debugger. Commands are
   1310  *              matched and dispatched here.
   1311  *
   1312  ******************************************************************************/
   1313 
   1314 ACPI_STATUS
   1315 AcpiDbUserCommands (
   1316     void)
   1317 {
   1318     ACPI_STATUS             Status = AE_OK;
   1319 
   1320 
   1321     AcpiOsPrintf ("\n");
   1322 
   1323     /* TBD: [Restructure] Need a separate command line buffer for step mode */
   1324 
   1325     while (!AcpiGbl_DbTerminateLoop)
   1326     {
   1327         /* Wait the readiness of the command */
   1328 
   1329         Status = AcpiOsWaitCommandReady ();
   1330         if (ACPI_FAILURE (Status))
   1331         {
   1332             break;
   1333         }
   1334 
   1335         /* Just call to the command line interpreter */
   1336 
   1337         AcpiGbl_MethodExecuting = FALSE;
   1338         AcpiGbl_StepToNextCall = FALSE;
   1339 
   1340         (void) AcpiDbCommandDispatch (AcpiGbl_DbLineBuf, NULL, NULL);
   1341 
   1342         /* Notify the completion of the command */
   1343 
   1344         Status = AcpiOsNotifyCommandComplete ();
   1345         if (ACPI_FAILURE (Status))
   1346         {
   1347             break;
   1348         }
   1349     }
   1350 
   1351     if (ACPI_FAILURE (Status) && Status != AE_CTRL_TERMINATE)
   1352     {
   1353         ACPI_EXCEPTION ((AE_INFO, Status, "While parsing command line"));
   1354     }
   1355     return (Status);
   1356 }
   1357