xref: /freebsd/sys/contrib/dev/acpica/compiler/cvdisasm.c (revision 580744621f33383027108364dcadad718df46ffe)
1 /******************************************************************************
2  *
3  * Module Name: cvcompiler - ASL-/ASL+ converter functions
4  *
5  *****************************************************************************/
6 
7 /******************************************************************************
8  *
9  * 1. Copyright Notice
10  *
11  * Some or all of this work - Copyright (c) 1999 - 2020, 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 <contrib/dev/acpica/compiler/aslcompiler.h>
153 #include <contrib/dev/acpica/include/acparser.h>
154 #include <contrib/dev/acpica/include/amlcode.h>
155 #include <contrib/dev/acpica/include/acdebug.h>
156 #include <contrib/dev/acpica/include/acconvert.h>
157 
158 
159 /* Local prototypes */
160 
161 static void
162 CvPrintInclude(
163     ACPI_FILE_NODE          *FNode,
164     UINT32                  Level);
165 
166 static BOOLEAN
167 CvListIsSingleton (
168     ACPI_COMMENT_NODE       *CommentList);
169 
170 
171 /*******************************************************************************
172  *
173  * FUNCTION:    CvPrintOneCommentList
174  *
175  * PARAMETERS:  CommentList
176  *              Level
177  *
178  * RETURN:      None
179  *
180  * DESCRIPTION: Prints all comments within the given list.
181  *              This is referred as ASL_CV_PRINT_ONE_COMMENT_LIST.
182  *
183  ******************************************************************************/
184 
185 void
186 CvPrintOneCommentList (
187     ACPI_COMMENT_NODE       *CommentList,
188     UINT32                  Level)
189 {
190     ACPI_COMMENT_NODE       *Current = CommentList;
191     ACPI_COMMENT_NODE       *Previous;
192 
193 
194     while (Current)
195     {
196         Previous = Current;
197         if (Current->Comment)
198         {
199             AcpiDmIndent(Level);
200             AcpiOsPrintf("%s\n", Current->Comment);
201             Current->Comment = NULL;
202         }
203 
204         Current = Current->Next;
205         AcpiOsReleaseObject(AcpiGbl_RegCommentCache, Previous);
206     }
207 }
208 
209 
210 /*******************************************************************************
211  *
212  * FUNCTION:    CvListIsSingleton
213  *
214  * PARAMETERS:  CommentList     - check to see if this is a single item list.
215  *
216  * RETURN:      BOOLEAN
217  *
218  * DESCRIPTION: Returns TRUE if CommentList only contains 1 node.
219  *
220  ******************************************************************************/
221 
222 static BOOLEAN
223 CvListIsSingleton (
224     ACPI_COMMENT_NODE       *CommentList)
225 
226 {
227 
228     if (!CommentList)
229     {
230         return (FALSE);
231     }
232     else if (CommentList->Next)
233     {
234         return (FALSE);
235     }
236 
237     return (TRUE);
238 }
239 
240 
241 /*******************************************************************************
242  *
243  * FUNCTION:    CvPrintOneCommentType
244  *
245  * PARAMETERS:  Op
246  *              CommentType
247  *              EndStr - String to print after printing the comment
248  *              Level  - indentation level for comment lists.
249  *
250  * RETURN:      None
251  *
252  * DESCRIPTION: Prints all comments of CommentType within the given Op and
253  *              clears the printed comment from the Op.
254  *              This is referred as ASL_CV_PRINT_ONE_COMMENT.
255  *
256  ******************************************************************************/
257 
258 void
259 CvPrintOneCommentType (
260     ACPI_PARSE_OBJECT       *Op,
261     UINT8                   CommentType,
262     char*                   EndStr,
263     UINT32                  Level)
264 {
265     BOOLEAN                 CommentExists = FALSE;
266     char                    **CommentToPrint = NULL;
267 
268 
269     switch (CommentType)
270     {
271     case AML_COMMENT_STANDARD:
272 
273         if (CvListIsSingleton (Op->Common.CommentList))
274         {
275             CvPrintOneCommentList (Op->Common.CommentList, Level);
276             AcpiOsPrintf ("\n");
277         }
278         else
279         {
280             CvPrintOneCommentList (Op->Common.CommentList, Level);
281         }
282 
283         Op->Common.CommentList = NULL;
284         return;
285 
286     case AML_COMMENT_ENDBLK:
287 
288         if (Op->Common.EndBlkComment)
289         {
290             CvPrintOneCommentList (Op->Common.EndBlkComment, Level);
291             Op->Common.EndBlkComment = NULL;
292             AcpiDmIndent(Level);
293         }
294         return;
295 
296     case AMLCOMMENT_INLINE:
297 
298         CommentToPrint = &Op->Common.InlineComment;
299         break;
300 
301     case AML_COMMENT_END_NODE:
302 
303         CommentToPrint = &Op->Common.EndNodeComment;
304         break;
305 
306     case AML_NAMECOMMENT:
307 
308         CommentToPrint = &Op->Common.NameComment;
309         break;
310 
311     case AML_COMMENT_CLOSE_BRACE:
312 
313         CommentToPrint = &Op->Common.CloseBraceComment;
314         break;
315 
316     default:
317         return;
318     }
319 
320     if (*CommentToPrint)
321     {
322         CommentExists = TRUE;
323         AcpiOsPrintf ("%s", *CommentToPrint);
324         *CommentToPrint = NULL;
325     }
326 
327     if (CommentExists && EndStr)
328     {
329         AcpiOsPrintf ("%s", EndStr);
330     }
331 }
332 
333 
334 /*******************************************************************************
335  *
336  * FUNCTION:    CvCloseBraceWriteComment
337  *
338  * PARAMETERS:  Op
339  *              Level
340  *
341  * RETURN:      None
342  *
343  * DESCRIPTION: Print a close brace } and any open brace comments associated
344  *              with this parse object.
345  *              This is referred as ASL_CV_CLOSE_BRACE.
346  *
347  ******************************************************************************/
348 
349 void
350 CvCloseBraceWriteComment(
351     ACPI_PARSE_OBJECT       *Op,
352     UINT32                  Level)
353 {
354 
355     if (!AcpiGbl_CaptureComments)
356     {
357         AcpiOsPrintf ("}");
358         return;
359     }
360 
361     CvPrintOneCommentType (Op, AML_COMMENT_ENDBLK, NULL, Level);
362     AcpiOsPrintf ("}");
363     CvPrintOneCommentType (Op, AML_COMMENT_CLOSE_BRACE, NULL, Level);
364 }
365 
366 
367 /*******************************************************************************
368  *
369  * FUNCTION:    CvCloseParenWriteComment
370  *
371  * PARAMETERS:  Op
372  *              Level
373  *
374  * RETURN:      None
375  *
376  * DESCRIPTION: Print a closing paren ) and any end node comments associated
377  *              with this parse object.
378  *              This is referred as ASL_CV_CLOSE_PAREN.
379  *
380  ******************************************************************************/
381 
382 void
383 CvCloseParenWriteComment(
384     ACPI_PARSE_OBJECT       *Op,
385     UINT32                  Level)
386 {
387 
388     if (!AcpiGbl_CaptureComments)
389     {
390         AcpiOsPrintf (")");
391         return;
392     }
393 
394     /*
395      * If this op has a BLOCK_BRACE, then output the comment when the
396      * disassembler calls CvCloseBraceWriteComment
397      */
398     if (AcpiDmBlockType (Op) == BLOCK_PAREN)
399     {
400         CvPrintOneCommentType (Op, AML_COMMENT_ENDBLK, NULL, Level);
401     }
402 
403     AcpiOsPrintf (")");
404 
405     if (Op->Common.EndNodeComment)
406     {
407         CvPrintOneCommentType (Op, AML_COMMENT_END_NODE, NULL, Level);
408     }
409     else if ((Op->Common.Parent->Common.AmlOpcode == AML_IF_OP) &&
410          Op->Common.Parent->Common.EndNodeComment)
411     {
412         CvPrintOneCommentType (Op->Common.Parent,
413             AML_COMMENT_END_NODE, NULL, Level);
414     }
415 }
416 
417 
418 /*******************************************************************************
419  *
420  * FUNCTION:    CvFileHasSwitched
421  *
422  * PARAMETERS:  Op
423  *
424  * RETURN:      BOOLEAN
425  *
426  * DESCRIPTION: Determine whether if a file has switched.
427  *              TRUE - file has switched.
428  *              FALSE - file has not switched.
429  *              This is referred as ASL_CV_FILE_HAS_SWITCHED.
430  *
431  ******************************************************************************/
432 
433 BOOLEAN
434 CvFileHasSwitched(
435     ACPI_PARSE_OBJECT       *Op)
436 {
437 
438     if (Op->Common.CvFilename   &&
439         AcpiGbl_CurrentFilename &&
440         AcpiUtStricmp(Op->Common.CvFilename, AcpiGbl_CurrentFilename))
441     {
442         return (TRUE);
443     }
444 
445     return (FALSE);
446 }
447 
448 
449 /*******************************************************************************
450  *
451  * FUNCTION:    CvPrintInclude
452  *
453  * PARAMETERS:  FNode - Write an Include statement for the file that is pointed
454  *                      by FNode->File.
455  *              Level - indentation level
456  *
457  * RETURN:      None
458  *
459  * DESCRIPTION: Write the ASL Include statement for FNode->File in the file
460  *              indicated by FNode->Parent->File. Note this function emits
461  *              actual ASL code rather than comments. This switches the output
462  *              file to FNode->Parent->File.
463  *
464  ******************************************************************************/
465 
466 static void
467 CvPrintInclude(
468     ACPI_FILE_NODE          *FNode,
469     UINT32                  Level)
470 {
471 
472     if (!FNode || FNode->IncludeWritten)
473     {
474         return;
475     }
476 
477     CvDbgPrint ("Writing include for %s within %s\n",
478         FNode->Filename, FNode->Parent->Filename);
479     AcpiOsRedirectOutput (FNode->Parent->File);
480     CvPrintOneCommentList (FNode->IncludeComment, Level);
481 
482     AcpiDmIndent (Level);
483     AcpiOsPrintf ("Include (\"%s\")\n", FNode->Filename);
484     CvDbgPrint ("emitted the following: Include (\"%s\")\n",
485         FNode->Filename);
486     FNode->IncludeWritten = TRUE;
487 }
488 
489 
490 /*******************************************************************************
491  *
492  * FUNCTION:    CvSwitchFiles
493  *
494  * PARAMETERS:  Level                   - indentation level
495  *              Op
496  *
497  * RETURN:      None
498  *
499  * DESCRIPTION: Switch the outputfile and write ASL Include statement. Note,
500  *              this function emits actual ASL code rather than comments.
501  *              This is referred as ASL_CV_SWITCH_FILES.
502  *
503  ******************************************************************************/
504 
505 void
506 CvSwitchFiles(
507     UINT32                  Level,
508     ACPI_PARSE_OBJECT       *Op)
509 {
510     char                    *Filename = Op->Common.CvFilename;
511     ACPI_FILE_NODE          *FNode;
512     ACPI_FILE_NODE          *Current;
513 
514 
515     CvDbgPrint ("Switching from %s to %s\n", AcpiGbl_CurrentFilename,
516         Filename);
517     FNode = CvFilenameExists (Filename, AcpiGbl_FileTreeRoot);
518     if (!FNode)
519     {
520         /*
521          * At this point, each Filename should exist in AcpiGbl_FileTreeRoot
522          * if it does not exist, then abort.
523          */
524         FlDeleteFile (ASL_FILE_AML_OUTPUT);
525         sprintf (AslGbl_MsgBuffer, "\"Cannot find %s\" - %s",
526             Filename, strerror (errno));
527         AslCommonError (ASL_ERROR, ASL_MSG_OPEN, 0, 0, 0, 0,
528             NULL, AslGbl_MsgBuffer);
529         AslAbort ();
530     }
531 
532     Current = FNode;
533 
534     /*
535      * If the previous file is a descendent of the current file,
536      * make sure that Include statements from the current file
537      * to the previous have been emitted.
538      */
539     while (Current &&
540            Current->Parent &&
541            AcpiUtStricmp (Current->Filename, AcpiGbl_CurrentFilename))
542     {
543         CvPrintInclude (Current, Level);
544         Current = Current->Parent;
545     }
546 
547     if (FNode)
548     {
549         /* Redirect output to Op->Common.CvFilename */
550 
551         AcpiOsRedirectOutput (FNode->File);
552         AcpiGbl_CurrentFilename = FNode->Filename;
553     }
554 }
555