Training courses

Kernel and Embedded Linux

Bootlin training courses

Embedded Linux, kernel,
Yocto Project, Buildroot, real-time,
graphics, boot time, debugging...

Bootlin logo

Elixir Cross Referencer

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
/******************************************************************************
 *
 * Module Name: cvcompiler - ASL-/ASL+ converter functions
 *
 *****************************************************************************/

/*
 * Copyright (C) 2000 - 2022, Intel Corp.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 *    substantially similar to the "NO WARRANTY" disclaimer below
 *    ("Disclaimer") and any redistribution must be conditioned upon
 *    including a substantially similar Disclaimer requirement for further
 *    binary redistribution.
 * 3. Neither the names of the above-listed copyright holders nor the names
 *    of any contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * NO WARRANTY
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 */

#include "aslcompiler.h"
#include "acparser.h"
#include "amlcode.h"
#include "acdebug.h"
#include "acconvert.h"


/* Local prototypes */

static void
CvPrintInclude(
    ACPI_FILE_NODE          *FNode,
    UINT32                  Level);

static BOOLEAN
CvListIsSingleton (
    ACPI_COMMENT_NODE       *CommentList);


/*******************************************************************************
 *
 * FUNCTION:    CvPrintOneCommentList
 *
 * PARAMETERS:  CommentList
 *              Level
 *
 * RETURN:      None
 *
 * DESCRIPTION: Prints all comments within the given list.
 *              This is referred as ASL_CV_PRINT_ONE_COMMENT_LIST.
 *
 ******************************************************************************/

void
CvPrintOneCommentList (
    ACPI_COMMENT_NODE       *CommentList,
    UINT32                  Level)
{
    ACPI_COMMENT_NODE       *Current = CommentList;
    ACPI_COMMENT_NODE       *Previous;


    while (Current)
    {
        Previous = Current;
        if (Current->Comment)
        {
            AcpiDmIndent(Level);
            AcpiOsPrintf("%s\n", Current->Comment);
            Current->Comment = NULL;
        }

        Current = Current->Next;
        AcpiOsReleaseObject(AcpiGbl_RegCommentCache, Previous);
    }
}


/*******************************************************************************
 *
 * FUNCTION:    CvListIsSingleton
 *
 * PARAMETERS:  CommentList     - check to see if this is a single item list.
 *
 * RETURN:      BOOLEAN
 *
 * DESCRIPTION: Returns TRUE if CommentList only contains 1 node.
 *
 ******************************************************************************/

static BOOLEAN
CvListIsSingleton (
    ACPI_COMMENT_NODE       *CommentList)

{

    if (!CommentList)
    {
        return (FALSE);
    }
    else if (CommentList->Next)
    {
        return (FALSE);
    }

    return (TRUE);
}


/*******************************************************************************
 *
 * FUNCTION:    CvPrintOneCommentType
 *
 * PARAMETERS:  Op
 *              CommentType
 *              EndStr - String to print after printing the comment
 *              Level  - indentation level for comment lists.
 *
 * RETURN:      None
 *
 * DESCRIPTION: Prints all comments of CommentType within the given Op and
 *              clears the printed comment from the Op.
 *              This is referred as ASL_CV_PRINT_ONE_COMMENT.
 *
 ******************************************************************************/

void
CvPrintOneCommentType (
    ACPI_PARSE_OBJECT       *Op,
    UINT8                   CommentType,
    char*                   EndStr,
    UINT32                  Level)
{
    BOOLEAN                 CommentExists = FALSE;
    char                    **CommentToPrint = NULL;


    switch (CommentType)
    {
    case AML_COMMENT_STANDARD:

        if (CvListIsSingleton (Op->Common.CommentList))
        {
            CvPrintOneCommentList (Op->Common.CommentList, Level);
            AcpiOsPrintf ("\n");
        }
        else
        {
            CvPrintOneCommentList (Op->Common.CommentList, Level);
        }

        Op->Common.CommentList = NULL;
        return;

    case AML_COMMENT_ENDBLK:

        if (Op->Common.EndBlkComment)
        {
            CvPrintOneCommentList (Op->Common.EndBlkComment, Level);
            Op->Common.EndBlkComment = NULL;
            AcpiDmIndent(Level);
        }
        return;

    case AMLCOMMENT_INLINE:

        CommentToPrint = &Op->Common.InlineComment;
        break;

    case AML_COMMENT_END_NODE:

        CommentToPrint = &Op->Common.EndNodeComment;
        break;

    case AML_NAMECOMMENT:

        CommentToPrint = &Op->Common.NameComment;
        break;

    case AML_COMMENT_CLOSE_BRACE:

        CommentToPrint = &Op->Common.CloseBraceComment;
        break;

    default:
        return;
    }

    if (*CommentToPrint)
    {
        CommentExists = TRUE;
        AcpiOsPrintf ("%s", *CommentToPrint);
        *CommentToPrint = NULL;
    }

    if (CommentExists && EndStr)
    {
        AcpiOsPrintf ("%s", EndStr);
    }
}


/*******************************************************************************
 *
 * FUNCTION:    CvCloseBraceWriteComment
 *
 * PARAMETERS:  Op
 *              Level
 *
 * RETURN:      None
 *
 * DESCRIPTION: Print a close brace } and any open brace comments associated
 *              with this parse object.
 *              This is referred as ASL_CV_CLOSE_BRACE.
 *
 ******************************************************************************/

void
CvCloseBraceWriteComment(
    ACPI_PARSE_OBJECT       *Op,
    UINT32                  Level)
{

    if (!AcpiGbl_CaptureComments)
    {
        AcpiOsPrintf ("}");
        return;
    }

    CvPrintOneCommentType (Op, AML_COMMENT_ENDBLK, NULL, Level);
    AcpiOsPrintf ("}");
    CvPrintOneCommentType (Op, AML_COMMENT_CLOSE_BRACE, NULL, Level);
}


/*******************************************************************************
 *
 * FUNCTION:    CvCloseParenWriteComment
 *
 * PARAMETERS:  Op
 *              Level
 *
 * RETURN:      None
 *
 * DESCRIPTION: Print a closing paren ) and any end node comments associated
 *              with this parse object.
 *              This is referred as ASL_CV_CLOSE_PAREN.
 *
 ******************************************************************************/

void
CvCloseParenWriteComment(
    ACPI_PARSE_OBJECT       *Op,
    UINT32                  Level)
{

    if (!AcpiGbl_CaptureComments)
    {
        AcpiOsPrintf (")");
        return;
    }

    /*
     * If this op has a BLOCK_BRACE, then output the comment when the
     * disassembler calls CvCloseBraceWriteComment
     */
    if (AcpiDmBlockType (Op) == BLOCK_PAREN)
    {
        CvPrintOneCommentType (Op, AML_COMMENT_ENDBLK, NULL, Level);
    }

    AcpiOsPrintf (")");

    if (Op->Common.EndNodeComment)
    {
        CvPrintOneCommentType (Op, AML_COMMENT_END_NODE, NULL, Level);
    }
    else if ((Op->Common.Parent->Common.AmlOpcode == AML_IF_OP) &&
         Op->Common.Parent->Common.EndNodeComment)
    {
        CvPrintOneCommentType (Op->Common.Parent,
            AML_COMMENT_END_NODE, NULL, Level);
    }
}


/*******************************************************************************
 *
 * FUNCTION:    CvFileHasSwitched
 *
 * PARAMETERS:  Op
 *
 * RETURN:      BOOLEAN
 *
 * DESCRIPTION: Determine whether if a file has switched.
 *              TRUE - file has switched.
 *              FALSE - file has not switched.
 *              This is referred as ASL_CV_FILE_HAS_SWITCHED.
 *
 ******************************************************************************/

BOOLEAN
CvFileHasSwitched(
    ACPI_PARSE_OBJECT       *Op)
{

    if (Op->Common.CvFilename   &&
        AcpiGbl_CurrentFilename &&
        AcpiUtStricmp(Op->Common.CvFilename, AcpiGbl_CurrentFilename))
    {
        return (TRUE);
    }

    return (FALSE);
}


/*******************************************************************************
 *
 * FUNCTION:    CvPrintInclude
 *
 * PARAMETERS:  FNode - Write an Include statement for the file that is pointed
 *                      by FNode->File.
 *              Level - indentation level
 *
 * RETURN:      None
 *
 * DESCRIPTION: Write the ASL Include statement for FNode->File in the file
 *              indicated by FNode->Parent->File. Note this function emits
 *              actual ASL code rather than comments. This switches the output
 *              file to FNode->Parent->File.
 *
 ******************************************************************************/

static void
CvPrintInclude(
    ACPI_FILE_NODE          *FNode,
    UINT32                  Level)
{

    if (!FNode || FNode->IncludeWritten)
    {
        return;
    }

    CvDbgPrint ("Writing include for %s within %s\n",
        FNode->Filename, FNode->Parent->Filename);
    AcpiOsRedirectOutput (FNode->Parent->File);
    CvPrintOneCommentList (FNode->IncludeComment, Level);

    AcpiDmIndent (Level);
    AcpiOsPrintf ("Include (\"%s\")\n", FNode->Filename);
    CvDbgPrint ("emitted the following: Include (\"%s\")\n",
        FNode->Filename);
    FNode->IncludeWritten = TRUE;
}


/*******************************************************************************
 *
 * FUNCTION:    CvSwitchFiles
 *
 * PARAMETERS:  Level                   - indentation level
 *              Op
 *
 * RETURN:      None
 *
 * DESCRIPTION: Switch the outputfile and write ASL Include statement. Note,
 *              this function emits actual ASL code rather than comments.
 *              This is referred as ASL_CV_SWITCH_FILES.
 *
 ******************************************************************************/

void
CvSwitchFiles(
    UINT32                  Level,
    ACPI_PARSE_OBJECT       *Op)
{
    char                    *Filename = Op->Common.CvFilename;
    ACPI_FILE_NODE          *FNode;
    ACPI_FILE_NODE          *Current;


    CvDbgPrint ("Switching from %s to %s\n", AcpiGbl_CurrentFilename,
        Filename);
    FNode = CvFilenameExists (Filename, AcpiGbl_FileTreeRoot);
    if (!FNode)
    {
        /*
         * At this point, each Filename should exist in AcpiGbl_FileTreeRoot
         * if it does not exist, then abort.
         */
        FlDeleteFile (ASL_FILE_AML_OUTPUT);
        sprintf (AslGbl_MsgBuffer, "\"Cannot find %s\" - %s",
            Filename, strerror (errno));
        AslCommonError (ASL_ERROR, ASL_MSG_OPEN, 0, 0, 0, 0,
            NULL, AslGbl_MsgBuffer);
        AslAbort ();
    }

    Current = FNode;

    /*
     * If the previous file is a descendent of the current file,
     * make sure that Include statements from the current file
     * to the previous have been emitted.
     */
    while (Current &&
           Current->Parent &&
           AcpiUtStricmp (Current->Filename, AcpiGbl_CurrentFilename))
    {
        CvPrintInclude (Current, Level);
        Current = Current->Parent;
    }

    if (FNode)
    {
        /* Redirect output to Op->Common.CvFilename */

        AcpiOsRedirectOutput (FNode->File);
        AcpiGbl_CurrentFilename = FNode->Filename;
    }
}