1 /******************************************************************************
2  *
3  * Module Name: aemain - Main routine for the AcpiExec utility
4  *
5  *****************************************************************************/
6 
7 /******************************************************************************
8  *
9  * 1. Copyright Notice
10  *
11  * Some or all of this work - Copyright (c) 1999 - 2017, Intel Corp.
12  * All rights reserved.
13  *
14  * 2. License
15  *
16  * 2.1. This is your license from Intel Corp. under its intellectual property
17  * rights. You may have additional license terms from the party that provided
18  * you this software, covering your right to use that party's intellectual
19  * property rights.
20  *
21  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22  * copy of the source code appearing in this file ("Covered Code") an
23  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24  * base code distributed originally by Intel ("Original Intel Code") to copy,
25  * make derivatives, distribute, use and display any portion of the Covered
26  * Code in any form, with the right to sublicense such rights; and
27  *
28  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29  * license (with the right to sublicense), under only those claims of Intel
30  * patents that are infringed by the Original Intel Code, to make, use, sell,
31  * offer to sell, and import the Covered Code and derivative works thereof
32  * solely to the minimum extent necessary to exercise the above copyright
33  * license, and in no event shall the patent license extend to any additions
34  * to or modifications of the Original Intel Code. No other license or right
35  * is granted directly or by implication, estoppel or otherwise;
36  *
37  * The above copyright and patent license is granted only if the following
38  * conditions are met:
39  *
40  * 3. Conditions
41  *
42  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43  * Redistribution of source code of any substantial portion of the Covered
44  * Code or modification with rights to further distribute source must include
45  * the above Copyright Notice, the above License, this list of Conditions,
46  * and the following Disclaimer and Export Compliance provision. In addition,
47  * Licensee must cause all Covered Code to which Licensee contributes to
48  * contain a file documenting the changes Licensee made to create that Covered
49  * Code and the date of any change. Licensee must include in that file the
50  * documentation of any changes made by any predecessor Licensee. Licensee
51  * must include a prominent statement that the modification is derived,
52  * directly or indirectly, from Original Intel Code.
53  *
54  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55  * Redistribution of source code of any substantial portion of the Covered
56  * Code or modification without rights to further distribute source must
57  * include the following Disclaimer and Export Compliance provision in the
58  * documentation and/or other materials provided with distribution. In
59  * addition, Licensee may not authorize further sublicense of source of any
60  * portion of the Covered Code, and must include terms to the effect that the
61  * license from Licensee to its licensee is limited to the intellectual
62  * property embodied in the software Licensee provides to its licensee, and
63  * not to intellectual property embodied in modifications its licensee may
64  * make.
65  *
66  * 3.3. Redistribution of Executable. Redistribution in executable form of any
67  * substantial portion of the Covered Code or modification must reproduce the
68  * above Copyright Notice, and the following Disclaimer and Export Compliance
69  * provision in the documentation and/or other materials provided with the
70  * distribution.
71  *
72  * 3.4. Intel retains all right, title, and interest in and to the Original
73  * Intel Code.
74  *
75  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76  * Intel shall be used in advertising or otherwise to promote the sale, use or
77  * other dealings in products derived from or relating to the Covered Code
78  * without prior written authorization from Intel.
79  *
80  * 4. Disclaimer and Export Compliance
81  *
82  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83  * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85  * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86  * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
88  * PARTICULAR PURPOSE.
89  *
90  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
97  * LIMITED REMEDY.
98  *
99  * 4.3. Licensee shall not export, either directly or indirectly, any of this
100  * software or system incorporating such software without first obtaining any
101  * required license or other approval from the U. S. Department of Commerce or
102  * any other agency or department of the United States Government. In the
103  * event Licensee exports any such software from the United States or
104  * re-exports any such software from a foreign destination, Licensee shall
105  * ensure that the distribution and export/re-export of the software is in
106  * compliance with all laws, regulations, orders, or other restrictions of the
107  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108  * any of its subsidiaries will export/re-export any technical data, process,
109  * software, or service, directly or indirectly, to any country for which the
110  * United States government or any agency thereof requires an export license,
111  * other governmental approval, or letter of assurance, without first obtaining
112  * such license, approval or letter.
113  *
114  *****************************************************************************
115  *
116  * Alternatively, you may choose to be licensed under the terms of the
117  * following license:
118  *
119  * Redistribution and use in source and binary forms, with or without
120  * modification, are permitted provided that the following conditions
121  * are met:
122  * 1. Redistributions of source code must retain the above copyright
123  *    notice, this list of conditions, and the following disclaimer,
124  *    without modification.
125  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
126  *    substantially similar to the "NO WARRANTY" disclaimer below
127  *    ("Disclaimer") and any redistribution must be conditioned upon
128  *    including a substantially similar Disclaimer requirement for further
129  *    binary redistribution.
130  * 3. Neither the names of the above-listed copyright holders nor the names
131  *    of any contributors may be used to endorse or promote products derived
132  *    from this software without specific prior written permission.
133  *
134  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
135  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
137  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
138  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
139  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
140  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
141  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
142  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
144  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
145  *
146  * Alternatively, you may choose to be licensed under the terms of the
147  * GNU General Public License ("GPL") version 2 as published by the Free
148  * Software Foundation.
149  *
150  *****************************************************************************/
151 
152 #include "aecommon.h"
153 
154 #define _COMPONENT          ACPI_TOOLS
155         ACPI_MODULE_NAME    ("aemain")
156 
157 
158 /*
159  * Main routine for the ACPI user-space execution utility.
160  *
161  * Portability note: The utility depends upon the host for command-line
162  * wildcard support - it is not implemented locally. For example:
163  *
164  * Linux/Unix systems: Shell expands wildcards automatically.
165  *
166  * Windows: The setargv.obj module must be linked in to automatically
167  * expand wildcards.
168  */
169 
170 /* Local prototypes */
171 
172 static int
173 AeDoOptions (
174     int                     argc,
175     char                    **argv);
176 
177 
178 #define AE_BUFFER_SIZE              1024
179 #define ASL_MAX_FILES               256
180 
181 /* Execution modes */
182 
183 #define AE_MODE_COMMAND_LOOP        0   /* Normal command execution loop */
184 #define AE_MODE_BATCH_MULTIPLE      1   /* -b option to execute a command line */
185 #define AE_MODE_BATCH_SINGLE        2   /* -m option to execute a single control method */
186 
187 
188 /* Globals */
189 
190 UINT8                       AcpiGbl_RegionFillValue = 0;
191 BOOLEAN                     AcpiGbl_IgnoreErrors = FALSE;
192 BOOLEAN                     AcpiGbl_DbOpt_NoRegionSupport = FALSE;
193 UINT8                       AcpiGbl_UseHwReducedFadt = FALSE;
194 BOOLEAN                     AcpiGbl_DoInterfaceTests = FALSE;
195 BOOLEAN                     AcpiGbl_LoadTestTables = FALSE;
196 BOOLEAN                     AcpiGbl_AeLoadOnly = FALSE;
197 static UINT8                AcpiGbl_ExecutionMode = AE_MODE_COMMAND_LOOP;
198 static char                 BatchBuffer[AE_BUFFER_SIZE];    /* Batch command buffer */
199 static char                 AeBuildDate[] = __DATE__;
200 static char                 AeBuildTime[] = __TIME__;
201 
202 #define ACPIEXEC_NAME               "AML Execution/Debug Utility"
203 #define AE_SUPPORTED_OPTIONS        "?b:d:e:f^ghi:lm^rv^:x:"
204 
205 
206 /* Stubs for the disassembler */
207 
208 void
209 MpSaveGpioInfo (
210     ACPI_PARSE_OBJECT       *Op,
211     AML_RESOURCE            *Resource,
212     UINT32                  PinCount,
213     UINT16                  *PinList,
214     char                    *DeviceName)
215 {
216 }
217 
218 void
219 MpSaveSerialInfo (
220     ACPI_PARSE_OBJECT       *Op,
221     AML_RESOURCE            *Resource,
222     char                    *DeviceName)
223 {
224 }
225 
226 
227 /******************************************************************************
228  *
229  * FUNCTION:    usage
230  *
231  * PARAMETERS:  None
232  *
233  * RETURN:      None
234  *
235  * DESCRIPTION: Print a usage message
236  *
237  *****************************************************************************/
238 
239 static void
240 usage (
241     void)
242 {
243 
244     ACPI_USAGE_HEADER ("acpiexec [options] AMLfile1 AMLfile2 ...");
245 
246     ACPI_OPTION ("-b \"CommandLine\"",  "Batch mode command line execution (cmd1;cmd2;...)");
247     ACPI_OPTION ("-h -?",               "Display this help message");
248     ACPI_OPTION ("-m [Method]",         "Batch mode method execution. Default=MAIN");
249     printf ("\n");
250 
251     ACPI_OPTION ("-da",                 "Disable method abort on error");
252     ACPI_OPTION ("-di",                 "Disable execution of STA/INI methods during init");
253     ACPI_OPTION ("-do",                 "Disable Operation Region address simulation");
254     ACPI_OPTION ("-dr",                 "Disable repair of method return values");
255     ACPI_OPTION ("-ds",                 "Disable method auto-serialization");
256     ACPI_OPTION ("-dt",                 "Disable allocation tracking (performance)");
257     printf ("\n");
258 
259     ACPI_OPTION ("-ed",                 "Enable timer output for Debug Object");
260     ACPI_OPTION ("-ef",                 "Enable display of final memory statistics");
261     ACPI_OPTION ("-ei",                 "Enable additional tests for ACPICA interfaces");
262     ACPI_OPTION ("-el",                 "Enable loading of additional test tables");
263     ACPI_OPTION ("-em",                 "Enable grouping of module-level code");
264     ACPI_OPTION ("-ep",                 "Enable TermList parsing for scope objects");
265     ACPI_OPTION ("-es",                 "Enable Interpreter Slack Mode");
266     ACPI_OPTION ("-et",                 "Enable debug semaphore timeout");
267     printf ("\n");
268 
269     ACPI_OPTION ("-fi <File>",          "Specify namespace initialization file");
270     ACPI_OPTION ("-fv <Value>",         "Operation Region initialization fill value");
271     printf ("\n");
272 
273     ACPI_OPTION ("-i <Count>",          "Maximum iterations for AML while loops");
274     ACPI_OPTION ("-l",                  "Load tables and namespace only");
275     ACPI_OPTION ("-r",                  "Use hardware-reduced FADT V5");
276     ACPI_OPTION ("-v",                  "Display version information");
277     ACPI_OPTION ("-vd",                 "Display build date and time");
278     ACPI_OPTION ("-vi",                 "Verbose initialization output");
279     ACPI_OPTION ("-vr",                 "Verbose region handler output");
280     ACPI_OPTION ("-x <DebugLevel>",     "Debug output level");
281 
282     printf ("\n  From within the interactive mode, use '?' or \"help\" to see\n"
283         "  a list of available AML Debugger commands\n");
284 }
285 
286 
287 /******************************************************************************
288  *
289  * FUNCTION:    AeDoOptions
290  *
291  * PARAMETERS:  argc/argv           - Standard argc/argv
292  *
293  * RETURN:      Status
294  *
295  * DESCRIPTION: Command line option processing
296  *
297  *****************************************************************************/
298 
299 static int
300 AeDoOptions (
301     int                     argc,
302     char                    **argv)
303 {
304     int                     j;
305     UINT32                  Temp;
306 
307 
308     while ((j = AcpiGetopt (argc, argv, AE_SUPPORTED_OPTIONS)) != ACPI_OPT_END) switch (j)
309     {
310     case 'b':
311 
312         if (strlen (AcpiGbl_Optarg) > (AE_BUFFER_SIZE -1))
313         {
314             printf ("**** The length of command line (%u) exceeded maximum (%u)\n",
315                 (UINT32) strlen (AcpiGbl_Optarg), (AE_BUFFER_SIZE -1));
316             return (-1);
317         }
318         AcpiGbl_ExecutionMode = AE_MODE_BATCH_MULTIPLE;
319         strcpy (BatchBuffer, AcpiGbl_Optarg);
320         break;
321 
322     case 'd':
323 
324         switch (AcpiGbl_Optarg[0])
325         {
326         case 'a':
327 
328             AcpiGbl_IgnoreErrors = TRUE;
329             break;
330 
331         case 'i':
332 
333             AcpiGbl_DbOpt_NoIniMethods = TRUE;
334             break;
335 
336         case 'o':
337 
338             AcpiGbl_DbOpt_NoRegionSupport = TRUE;
339             break;
340 
341         case 'r':
342 
343             AcpiGbl_DisableAutoRepair = TRUE;
344             break;
345 
346         case 's':
347 
348             AcpiGbl_AutoSerializeMethods = FALSE;
349             break;
350 
351         case 't':
352 
353             #ifdef ACPI_DBG_TRACK_ALLOCATIONS
354                 AcpiGbl_DisableMemTracking = TRUE;
355             #endif
356             break;
357 
358         default:
359 
360             printf ("Unknown option: -d%s\n", AcpiGbl_Optarg);
361             return (-1);
362         }
363         break;
364 
365     case 'e':
366 
367         switch (AcpiGbl_Optarg[0])
368         {
369         case 'd':
370 
371             AcpiGbl_DisplayDebugTimer = TRUE;
372             break;
373 
374         case 'f':
375 
376             #ifdef ACPI_DBG_TRACK_ALLOCATIONS
377                 AcpiGbl_DisplayFinalMemStats = TRUE;
378             #endif
379             break;
380 
381         case 'i':
382 
383             AcpiGbl_DoInterfaceTests = TRUE;
384             break;
385 
386         case 'l':
387 
388             AcpiGbl_LoadTestTables = TRUE;
389             break;
390 
391         case 'm':
392 
393             AcpiGbl_GroupModuleLevelCode = TRUE;
394             break;
395 
396         case 'p':
397 
398             AcpiGbl_ParseTableAsTermList = TRUE;
399             break;
400 
401         case 's':
402 
403             AcpiGbl_EnableInterpreterSlack = TRUE;
404             printf ("Enabling AML Interpreter slack mode\n");
405             break;
406 
407         case 't':
408 
409             AcpiGbl_DebugTimeout = TRUE;
410             break;
411 
412         default:
413 
414             printf ("Unknown option: -e%s\n", AcpiGbl_Optarg);
415             return (-1);
416         }
417         break;
418 
419     case 'f':
420 
421         switch (AcpiGbl_Optarg[0])
422         {
423         case 'v':   /* -fv: region fill value */
424 
425             if (AcpiGetoptArgument (argc, argv))
426             {
427                 return (-1);
428             }
429 
430             AcpiGbl_RegionFillValue = (UINT8) strtoul (AcpiGbl_Optarg, NULL, 0);
431             break;
432 
433         case 'i':   /* -fi: specify initialization file */
434 
435             if (AcpiGetoptArgument (argc, argv))
436             {
437                 return (-1);
438             }
439 
440             if (AeOpenInitializationFile (AcpiGbl_Optarg))
441             {
442                 return (-1);
443             }
444             break;
445 
446         default:
447 
448             printf ("Unknown option: -f%s\n", AcpiGbl_Optarg);
449             return (-1);
450         }
451         break;
452 
453     case 'g':
454 
455         AcpiGbl_DbFilename = NULL;
456         break;
457 
458     case 'h':
459     case '?':
460 
461         usage();
462         return (1);
463 
464     case 'i':
465 
466         Temp = strtoul (AcpiGbl_Optarg, NULL, 0);
467         if (!Temp || (Temp > ACPI_UINT16_MAX))
468         {
469             printf ("%s: Invalid max loops value\n", AcpiGbl_Optarg);
470             return (-1);
471         }
472 
473         AcpiGbl_MaxLoopIterations = (UINT16) Temp;
474         printf ("Max Loop Iterations is %u (0x%X)\n",
475             AcpiGbl_MaxLoopIterations, AcpiGbl_MaxLoopIterations);
476         break;
477 
478     case 'l':
479 
480         AcpiGbl_AeLoadOnly = TRUE;
481         break;
482 
483     case 'm':
484 
485         AcpiGbl_ExecutionMode = AE_MODE_BATCH_SINGLE;
486         switch (AcpiGbl_Optarg[0])
487         {
488         case '^':
489 
490             strcpy (BatchBuffer, "MAIN");
491             break;
492 
493         default:
494 
495             strcpy (BatchBuffer, AcpiGbl_Optarg);
496             break;
497         }
498         break;
499 
500     case 'r':
501 
502         AcpiGbl_UseHwReducedFadt = TRUE;
503         printf ("Using ACPI 5.0 Hardware Reduced Mode via version 5 FADT\n");
504         break;
505 
506     case 'v':
507 
508         switch (AcpiGbl_Optarg[0])
509         {
510         case '^':  /* -v: (Version): signon already emitted, just exit */
511 
512             (void) AcpiOsTerminate ();
513             return (1);
514 
515         case 'd':
516 
517             printf ("Build date/time: %s %s\n", AeBuildDate, AeBuildTime);
518             return (1);
519 
520         case 'i':
521 
522             AcpiDbgLevel |= ACPI_LV_INIT_NAMES;
523             break;
524 
525         case 'r':
526 
527             AcpiGbl_DisplayRegionAccess = TRUE;
528             break;
529 
530         default:
531 
532             printf ("Unknown option: -v%s\n", AcpiGbl_Optarg);
533             return (-1);
534         }
535         break;
536 
537     case 'x':
538 
539         AcpiDbgLevel = strtoul (AcpiGbl_Optarg, NULL, 0);
540         AcpiGbl_DbConsoleDebugLevel = AcpiDbgLevel;
541         printf ("Debug Level: 0x%8.8X\n", AcpiDbgLevel);
542         break;
543 
544     default:
545 
546         usage();
547         return (-1);
548     }
549 
550     return (0);
551 }
552 
553 
554 /******************************************************************************
555  *
556  * FUNCTION:    main
557  *
558  * PARAMETERS:  argc, argv
559  *
560  * RETURN:      Status
561  *
562  * DESCRIPTION: Main routine for AcpiExec utility
563  *
564  *****************************************************************************/
565 
566 int ACPI_SYSTEM_XFACE
567 main (
568     int                     argc,
569     char                    **argv)
570 {
571     ACPI_NEW_TABLE_DESC     *ListHead = NULL;
572     ACPI_STATUS             Status;
573     UINT32                  InitFlags;
574     int                     ExitCode = 0;
575 
576 
577     ACPI_DEBUG_INITIALIZE (); /* For debug version only */
578     signal (SIGINT, AeCtrlCHandler);
579 
580     /* Init debug globals */
581 
582     AcpiDbgLevel = ACPI_NORMAL_DEFAULT;
583     AcpiDbgLayer = 0xFFFFFFFF;
584 
585     /*
586      * Initialize ACPICA and start debugger thread.
587      *
588      * NOTE: After ACPICA initialization, AcpiTerminate MUST be called
589      * before this procedure exits -- otherwise, the console may be
590      * left in an incorrect state.
591      */
592     Status = AcpiInitializeSubsystem ();
593     ACPI_CHECK_OK (AcpiInitializeSubsystem, Status);
594     if (ACPI_FAILURE (Status))
595     {
596         goto ErrorExit;
597     }
598 
599     /* ACPICA runtime configuration */
600 
601     AcpiGbl_MaxLoopIterations = 400;
602 
603 
604     /* Initialize the AML debugger */
605 
606     Status = AcpiInitializeDebugger ();
607     ACPI_CHECK_OK (AcpiInitializeDebugger, Status);
608     if (ACPI_FAILURE (Status))
609     {
610         goto ErrorExit;
611     }
612 
613     printf (ACPI_COMMON_SIGNON (ACPIEXEC_NAME));
614     if (argc < 2)
615     {
616         usage ();
617         goto NormalExit;
618     }
619 
620     /* Get the command line options */
621 
622     ExitCode = AeDoOptions (argc, argv);
623     if (ExitCode)
624     {
625         if (ExitCode > 0)
626         {
627             ExitCode = 0;
628         }
629 
630         goto ErrorExit;
631     }
632 
633     /* The remaining arguments are filenames for ACPI tables */
634 
635     if (!argv[AcpiGbl_Optind])
636     {
637         goto EnterDebugger;
638     }
639 
640     AcpiGbl_CstyleDisassembly = FALSE; /* Not supported for AcpiExec */
641 
642     /* Get each of the ACPI table files on the command line */
643 
644     while (argv[AcpiGbl_Optind])
645     {
646         /* Get all ACPI AML tables in this file */
647 
648         Status = AcGetAllTablesFromFile (argv[AcpiGbl_Optind],
649             ACPI_GET_ALL_TABLES, &ListHead);
650         if (ACPI_FAILURE (Status))
651         {
652             ExitCode = -1;
653             goto ErrorExit;
654         }
655 
656         AcpiGbl_Optind++;
657     }
658 
659     printf ("\n");
660 
661     /* Build a local RSDT with all tables and let ACPICA process the RSDT */
662 
663     Status = AeBuildLocalTables (ListHead);
664     if (ACPI_FAILURE (Status))
665     {
666         goto ErrorExit;
667     }
668 
669     /* Install all of the ACPI tables */
670 
671     Status = AeInstallTables ();
672     if (ACPI_FAILURE (Status))
673     {
674         printf ("**** Could not install ACPI tables, %s\n",
675             AcpiFormatException (Status));
676         goto EnterDebugger;
677     }
678 
679     /*
680      * Install most of the handlers (Regions, Notify, Table, etc.)
681      * Override the default region handlers, especially SystemMemory,
682      * which is simulated in this utility.
683      */
684     Status = AeInstallEarlyHandlers ();
685     if (ACPI_FAILURE (Status))
686     {
687         goto EnterDebugger;
688     }
689 
690     /* Setup initialization flags for ACPICA */
691 
692     InitFlags = (ACPI_NO_HANDLER_INIT | ACPI_NO_ACPI_ENABLE);
693     if (AcpiGbl_DbOpt_NoIniMethods)
694     {
695         InitFlags |= (ACPI_NO_DEVICE_INIT | ACPI_NO_OBJECT_INIT);
696     }
697 
698     /*
699      * Main initialization for ACPICA subsystem
700      * TBD: Need a way to call this after the ACPI table "LOAD" command?
701      *
702      * NOTE: This initialization does not match the _Lxx and _Exx methods
703      * to individual GPEs, as there are no real GPEs when the hardware
704      * is simulated - because there is no namespace until AeLoadTables is
705      * executed. This may have to change if AcpiExec is ever run natively
706      * on actual hardware (such as under UEFI).
707      */
708     Status = AcpiEnableSubsystem (InitFlags);
709     if (ACPI_FAILURE (Status))
710     {
711         printf ("**** Could not EnableSubsystem, %s\n",
712             AcpiFormatException (Status));
713         goto EnterDebugger;
714     }
715 
716     Status = AeLoadTables ();
717 
718     /*
719      * Exit namespace initialization for the "load namespace only" option.
720      * No control methods will be executed. However, still enter the
721      * the debugger.
722      */
723     if (AcpiGbl_AeLoadOnly)
724     {
725         goto EnterDebugger;
726     }
727 
728     if (ACPI_FAILURE (Status))
729     {
730         printf ("**** Could not load ACPI tables, %s\n",
731             AcpiFormatException (Status));
732         goto EnterDebugger;
733     }
734 
735     /*
736      * Install handlers for "device driver" space IDs (EC,SMBus, etc.)
737      * and fixed event handlers
738      */
739     AeInstallLateHandlers ();
740 
741     /* Finish the ACPICA initialization */
742 
743     Status = AcpiInitializeObjects (InitFlags);
744     if (ACPI_FAILURE (Status))
745     {
746         printf ("**** Could not InitializeObjects, %s\n",
747             AcpiFormatException (Status));
748         goto EnterDebugger;
749     }
750 
751     AeMiscellaneousTests ();
752 
753 
754 EnterDebugger:
755 
756     /* Exit if error above and we are in one of the batch modes */
757 
758     if (ACPI_FAILURE (Status) && (AcpiGbl_ExecutionMode > 0))
759     {
760         goto ErrorExit;
761     }
762 
763     /* Run a batch command or enter the command loop */
764 
765     switch (AcpiGbl_ExecutionMode)
766     {
767     default:
768     case AE_MODE_COMMAND_LOOP:
769 
770         AcpiRunDebugger (NULL);
771         break;
772 
773     case AE_MODE_BATCH_MULTIPLE:
774 
775         AcpiRunDebugger (BatchBuffer);
776         break;
777 
778     case AE_MODE_BATCH_SINGLE:
779 
780         AcpiDbExecute (BatchBuffer, NULL, NULL, EX_NO_SINGLE_STEP);
781         break;
782     }
783 
784     /* Shut down the debugger and ACPICA */
785 
786     AcpiTerminateDebugger ();
787 
788 NormalExit:
789     ExitCode = 0;
790 
791 ErrorExit:
792     (void) AcpiOsTerminate ();
793     return (ExitCode);
794 }
795