The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/contrib/dev/acpica/compiler/dtio.c

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    1 /******************************************************************************
    2  *
    3  * Module Name: dtio.c - File I/O support for data table compiler
    4  *
    5  *****************************************************************************/
    6 
    7 /******************************************************************************
    8  *
    9  * 1. Copyright Notice
   10  *
   11  * Some or all of this work - Copyright (c) 1999 - 2022, 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/acapps.h>
  154 
  155 #define _COMPONENT          DT_COMPILER
  156         ACPI_MODULE_NAME    ("dtio")
  157 
  158 
  159 /* Local prototypes */
  160 
  161 static char *
  162 DtTrim (
  163     char                    *String);
  164 
  165 static ACPI_STATUS
  166 DtParseLine (
  167     char                    *LineBuffer,
  168     UINT32                  Line,
  169     UINT32                  Offset);
  170 
  171 static void
  172 DtWriteBinary (
  173     DT_SUBTABLE             *Subtable,
  174     void                    *Context,
  175     void                    *ReturnValue);
  176 
  177 static void
  178 DtDumpBuffer (
  179     UINT32                  FileId,
  180     UINT8                   *Buffer,
  181     UINT32                  Offset,
  182     UINT32                  Length);
  183 
  184 static void
  185 DtDumpSubtableInfo (
  186     DT_SUBTABLE             *Subtable,
  187     void                    *Context,
  188     void                    *ReturnValue);
  189 
  190 static void
  191 DtDumpSubtableTree (
  192     DT_SUBTABLE             *Subtable,
  193     void                    *Context,
  194     void                    *ReturnValue);
  195 
  196 
  197 /* States for DtGetNextLine */
  198 
  199 #define DT_NORMAL_TEXT              0
  200 #define DT_START_QUOTED_STRING      1
  201 #define DT_START_COMMENT            2
  202 #define DT_SLASH_ASTERISK_COMMENT   3
  203 #define DT_SLASH_SLASH_COMMENT      4
  204 #define DT_END_COMMENT              5
  205 #define DT_MERGE_LINES              6
  206 #define DT_ESCAPE_SEQUENCE          7
  207 
  208 static UINT32               AslGbl_NextLineOffset;
  209 
  210 
  211 /******************************************************************************
  212  *
  213  * FUNCTION:    DtTrim
  214  *
  215  * PARAMETERS:  String              - Current source code line to trim
  216  *
  217  * RETURN:      Trimmed line. Must be freed by caller.
  218  *
  219  * DESCRIPTION: Trim left and right spaces
  220  *
  221  *****************************************************************************/
  222 
  223 static char *
  224 DtTrim (
  225     char                    *String)
  226 {
  227     char                    *Start;
  228     char                    *End;
  229     char                    *ReturnString;
  230     ACPI_SIZE               Length;
  231 
  232 
  233     /* Skip lines that start with a space */
  234 
  235     if (*String == 0 || !strcmp (String, " "))
  236     {
  237         ReturnString = UtLocalCacheCalloc (1);
  238         return (ReturnString);
  239     }
  240 
  241     /* Setup pointers to start and end of input string */
  242 
  243     Start = String;
  244     End = String + strlen (String) - 1;
  245 
  246     /* Find first non-whitespace character */
  247 
  248     while ((Start <= End) && ((*Start == ' ') || (*Start == '\t')))
  249     {
  250         Start++;
  251     }
  252 
  253     /* Find last non-space character */
  254 
  255     while (End >= Start)
  256     {
  257         if (*End == '\n')
  258         {
  259             End--;
  260             continue;
  261         }
  262 
  263         if (*End != ' ')
  264         {
  265             break;
  266         }
  267 
  268         End--;
  269     }
  270 
  271     /* Remove any quotes around the string */
  272 
  273     if (*Start == '\"')
  274     {
  275         Start++;
  276     }
  277     if (*End == '\"')
  278     {
  279         End--;
  280     }
  281 
  282     /* Create the trimmed return string */
  283 
  284     Length = ACPI_PTR_DIFF (End, Start) + 1;
  285     ReturnString = UtLocalCacheCalloc (Length + 1);
  286     if (strlen (Start))
  287     {
  288         strncpy (ReturnString, Start, Length);
  289     }
  290 
  291     ReturnString[Length] = 0;
  292     return (ReturnString);
  293 }
  294 
  295 
  296 /******************************************************************************
  297  *
  298  * FUNCTION:    DtParseLine
  299  *
  300  * PARAMETERS:  LineBuffer          - Current source code line
  301  *              Line                - Current line number in the source
  302  *              Offset              - Current byte offset of the line
  303  *
  304  * RETURN:      Status
  305  *
  306  * DESCRIPTION: Parse one source line
  307  *
  308  *****************************************************************************/
  309 
  310 static ACPI_STATUS
  311 DtParseLine (
  312     char                    *LineBuffer,
  313     UINT32                  Line,
  314     UINT32                  Offset)
  315 {
  316     char                    *Start;
  317     char                    *End;
  318     char                    *TmpName;
  319     char                    *TmpValue;
  320     char                    *Name;
  321     char                    *Value;
  322     char                    *Colon;
  323     UINT32                  Length;
  324     DT_FIELD                *Field;
  325     UINT32                  Column;
  326     UINT32                  NameColumn;
  327     BOOLEAN                 IsNullString = FALSE;
  328 
  329 
  330     if (!LineBuffer)
  331     {
  332         return (AE_OK);
  333     }
  334 
  335     /* All lines after "Raw Table Data" are ignored */
  336 
  337     if (strstr (LineBuffer, ACPI_RAW_TABLE_DATA_HEADER))
  338     {
  339         return (AE_NOT_FOUND);
  340     }
  341 
  342     Colon = strchr (LineBuffer, ':');
  343     if (!Colon)
  344     {
  345         return (AE_OK);
  346     }
  347 
  348     Start = LineBuffer;
  349     End = Colon;
  350 
  351     while (Start < Colon)
  352     {
  353         if (*Start == '[')
  354         {
  355             /* Found left bracket, go to the right bracket */
  356 
  357             while (Start < Colon && *Start != ']')
  358             {
  359                 Start++;
  360             }
  361         }
  362         else if (*Start != ' ')
  363         {
  364             break;
  365         }
  366 
  367         Start++;
  368     }
  369 
  370     /*
  371      * There are two column values. One for the field name,
  372      * and one for the field value.
  373      */
  374     Column = ACPI_PTR_DIFF (Colon, LineBuffer) + 3;
  375     NameColumn = ACPI_PTR_DIFF (Start, LineBuffer) + 1;
  376 
  377     Length = ACPI_PTR_DIFF (End, Start);
  378 
  379     TmpName = UtLocalCalloc (Length + 1);
  380     strncpy (TmpName, Start, Length);
  381     Name = DtTrim (TmpName);
  382     ACPI_FREE (TmpName);
  383 
  384     Start = End = (Colon + 1);
  385     while (*End)
  386     {
  387         /* Found left quotation, go to the right quotation and break */
  388 
  389         if (*End == '"')
  390         {
  391             End++;
  392 
  393             /* Check for an explicit null string */
  394 
  395             if (*End == '"')
  396             {
  397                 IsNullString = TRUE;
  398             }
  399             while (*End && (*End != '"'))
  400             {
  401                 End++;
  402             }
  403 
  404             End++;
  405             break;
  406         }
  407 
  408         /*
  409          * Special "comment" fields at line end, ignore them.
  410          * Note: normal slash-slash and slash-asterisk comments are
  411          * stripped already by the DtGetNextLine parser.
  412          *
  413          * TBD: Perhaps DtGetNextLine should parse the following type
  414          * of comments also.
  415          */
  416         if (*End == '[')
  417         {
  418             End--;
  419             break;
  420         }
  421 
  422         End++;
  423     }
  424 
  425     Length = ACPI_PTR_DIFF (End, Start);
  426     TmpValue = UtLocalCalloc (Length + 1);
  427 
  428     strncpy (TmpValue, Start, Length);
  429     Value = DtTrim (TmpValue);
  430     ACPI_FREE (TmpValue);
  431 
  432     /* Create a new field object only if we have a valid value field */
  433 
  434     if ((Value && *Value) || IsNullString)
  435     {
  436         Field = UtFieldCacheCalloc ();
  437         Field->Name = Name;
  438         Field->Value = Value;
  439         Field->Line = Line;
  440         Field->ByteOffset = Offset;
  441         Field->NameColumn = NameColumn;
  442         Field->Column = Column;
  443         Field->StringLength = Length;
  444 
  445         DtLinkField (Field);
  446     }
  447     /* Else -- Ignore this field, it has no valid data */
  448 
  449     return (AE_OK);
  450 }
  451 
  452 
  453 /******************************************************************************
  454  *
  455  * FUNCTION:    DtGetNextLine
  456  *
  457  * PARAMETERS:  Handle              - Open file handle for the source file
  458  *
  459  * RETURN:      Filled line buffer and offset of start-of-line (ASL_EOF on EOF)
  460  *
  461  * DESCRIPTION: Get the next valid source line. Removes all comments.
  462  *              Ignores empty lines.
  463  *
  464  * Handles both slash-asterisk and slash-slash comments.
  465  * Also, quoted strings, but no escapes within.
  466  *
  467  * Line is returned in AslGbl_CurrentLineBuffer.
  468  * Line number in original file is returned in AslGbl_CurrentLineNumber.
  469  *
  470  *****************************************************************************/
  471 
  472 UINT32
  473 DtGetNextLine (
  474     FILE                    *Handle,
  475     UINT32                  Flags)
  476 {
  477     BOOLEAN                 LineNotAllBlanks = FALSE;
  478     UINT32                  State = DT_NORMAL_TEXT;
  479     UINT32                  CurrentLineOffset;
  480     UINT32                  i;
  481     int                     c;
  482     int                     c1;
  483 
  484 
  485     memset (AslGbl_CurrentLineBuffer, 0, AslGbl_LineBufferSize);
  486     for (i = 0; ;)
  487     {
  488         /*
  489          * If line is too long, expand the line buffers. Also increases
  490          * AslGbl_LineBufferSize.
  491          */
  492         if (i >= AslGbl_LineBufferSize)
  493         {
  494             UtExpandLineBuffers ();
  495         }
  496 
  497         c = getc (Handle);
  498         if (c == EOF)
  499         {
  500             switch (State)
  501             {
  502             case DT_START_QUOTED_STRING:
  503             case DT_SLASH_ASTERISK_COMMENT:
  504 
  505                 AcpiOsPrintf ("**** EOF within comment/string %u\n", State);
  506                 break;
  507 
  508             default:
  509 
  510                 break;
  511             }
  512 
  513             /* Standalone EOF is OK */
  514 
  515             if (i == 0)
  516             {
  517                 return (ASL_EOF);
  518             }
  519 
  520             /*
  521              * Received an EOF in the middle of a line. Terminate the
  522              * line with a newline. The next call to this function will
  523              * return a standalone EOF. Thus, the upper parsing software
  524              * never has to deal with an EOF within a valid line (or
  525              * the last line does not get tossed on the floor.)
  526              */
  527             c = '\n';
  528             State = DT_NORMAL_TEXT;
  529         }
  530         else if (c == '\r')
  531         {
  532             c1 = getc (Handle);
  533             if (c1 == '\n')
  534             {
  535                 /*
  536                  * Skip the carriage return as if it didn't exist. This is
  537                  * onlt meant for input files in DOS format in unix. fopen in
  538                  * unix may not support "text mode" and leaves CRLF intact.
  539                  */
  540                 c = '\n';
  541             }
  542             else
  543             {
  544                 /* This was not a CRLF. Only a CR */
  545 
  546                 ungetc(c1, Handle);
  547 
  548                 DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL,
  549                     "Carriage return without linefeed detected");
  550                 return (ASL_EOF);
  551             }
  552         }
  553 
  554         switch (State)
  555         {
  556         case DT_NORMAL_TEXT:
  557 
  558             /* Normal text, insert char into line buffer */
  559 
  560             AslGbl_CurrentLineBuffer[i] = (char) c;
  561             switch (c)
  562             {
  563             case '/':
  564 
  565                 State = DT_START_COMMENT;
  566                 break;
  567 
  568             case '"':
  569 
  570                 State = DT_START_QUOTED_STRING;
  571                 LineNotAllBlanks = TRUE;
  572                 i++;
  573                 break;
  574 
  575             case '\\':
  576                 /*
  577                  * The continuation char MUST be last char on this line.
  578                  * Otherwise, it will be assumed to be a valid ASL char.
  579                  */
  580                 State = DT_MERGE_LINES;
  581                 break;
  582 
  583             case '\n':
  584 
  585                 CurrentLineOffset = AslGbl_NextLineOffset;
  586                 AslGbl_NextLineOffset = (UINT32) ftell (Handle);
  587                 AslGbl_CurrentLineNumber++;
  588 
  589                 /*
  590                  * Exit if line is complete. Ignore empty lines (only \n)
  591                  * or lines that contain nothing but blanks.
  592                  */
  593                 if ((i != 0) && LineNotAllBlanks)
  594                 {
  595                     if ((i + 1) >= AslGbl_LineBufferSize)
  596                     {
  597                         UtExpandLineBuffers ();
  598                     }
  599 
  600                     AslGbl_CurrentLineBuffer[i+1] = 0; /* Terminate string */
  601                     return (CurrentLineOffset);
  602                 }
  603 
  604                 /* Toss this line and start a new one */
  605 
  606                 i = 0;
  607                 LineNotAllBlanks = FALSE;
  608                 break;
  609 
  610             default:
  611 
  612                 if (c != ' ')
  613                 {
  614                     LineNotAllBlanks = TRUE;
  615                 }
  616 
  617                 i++;
  618                 break;
  619             }
  620             break;
  621 
  622         case DT_START_QUOTED_STRING:
  623 
  624             /* Insert raw chars until end of quoted string */
  625 
  626             AslGbl_CurrentLineBuffer[i] = (char) c;
  627             i++;
  628 
  629             switch (c)
  630             {
  631             case '"':
  632 
  633                 State = DT_NORMAL_TEXT;
  634                 break;
  635 
  636             case '\\':
  637 
  638                 State = DT_ESCAPE_SEQUENCE;
  639                 break;
  640 
  641             case '\n':
  642 
  643                 if (!(Flags & DT_ALLOW_MULTILINE_QUOTES))
  644                 {
  645                     AcpiOsPrintf (
  646                         "ERROR at line %u: Unterminated quoted string\n",
  647                         AslGbl_CurrentLineNumber++);
  648                     State = DT_NORMAL_TEXT;
  649                 }
  650                 break;
  651 
  652             default:    /* Get next character */
  653 
  654                 break;
  655             }
  656             break;
  657 
  658         case DT_ESCAPE_SEQUENCE:
  659 
  660             /* Just copy the escaped character. TBD: sufficient for table compiler? */
  661 
  662             AslGbl_CurrentLineBuffer[i] = (char) c;
  663             i++;
  664             State = DT_START_QUOTED_STRING;
  665             break;
  666 
  667         case DT_START_COMMENT:
  668 
  669             /* Open comment if this character is an asterisk or slash */
  670 
  671             switch (c)
  672             {
  673             case '*':
  674 
  675                 State = DT_SLASH_ASTERISK_COMMENT;
  676                 break;
  677 
  678             case '/':
  679 
  680                 State = DT_SLASH_SLASH_COMMENT;
  681                 break;
  682 
  683             default:    /* Not a comment */
  684 
  685                 i++;    /* Save the preceding slash */
  686                 if (i >= AslGbl_LineBufferSize)
  687                 {
  688                     UtExpandLineBuffers ();
  689                 }
  690 
  691                 AslGbl_CurrentLineBuffer[i] = (char) c;
  692                 i++;
  693                 State = DT_NORMAL_TEXT;
  694                 break;
  695             }
  696             break;
  697 
  698         case DT_SLASH_ASTERISK_COMMENT:
  699 
  700             /* Ignore chars until an asterisk-slash is found */
  701 
  702             switch (c)
  703             {
  704             case '\n':
  705 
  706                 AslGbl_NextLineOffset = (UINT32) ftell (Handle);
  707                 AslGbl_CurrentLineNumber++;
  708                 break;
  709 
  710             case '*':
  711 
  712                 State = DT_END_COMMENT;
  713                 break;
  714 
  715             default:
  716 
  717                 break;
  718             }
  719             break;
  720 
  721         case DT_SLASH_SLASH_COMMENT:
  722 
  723             /* Ignore chars until end-of-line */
  724 
  725             if (c == '\n')
  726             {
  727                 /* We will exit via the NORMAL_TEXT path */
  728 
  729                 ungetc (c, Handle);
  730                 State = DT_NORMAL_TEXT;
  731             }
  732             break;
  733 
  734         case DT_END_COMMENT:
  735 
  736             /* End comment if this char is a slash */
  737 
  738             switch (c)
  739             {
  740             case '/':
  741 
  742                 State = DT_NORMAL_TEXT;
  743                 break;
  744 
  745             case '\n':
  746 
  747                 AslGbl_NextLineOffset = (UINT32) ftell (Handle);
  748                 AslGbl_CurrentLineNumber++;
  749                 break;
  750 
  751             case '*':
  752 
  753                 /* Consume all adjacent asterisks */
  754                 break;
  755 
  756             default:
  757 
  758                 State = DT_SLASH_ASTERISK_COMMENT;
  759                 break;
  760             }
  761             break;
  762 
  763         case DT_MERGE_LINES:
  764 
  765             if (c != '\n')
  766             {
  767                 /*
  768                  * This is not a continuation backslash, it is a normal
  769                  * normal ASL backslash - for example: Scope(\_SB_)
  770                  */
  771                 i++; /* Keep the backslash that is already in the buffer */
  772 
  773                 ungetc (c, Handle);
  774                 State = DT_NORMAL_TEXT;
  775             }
  776             else
  777             {
  778                 /*
  779                  * This is a continuation line -- a backlash followed
  780                  * immediately by a newline. Insert a space between the
  781                  * lines (overwrite the backslash)
  782                  */
  783                 AslGbl_CurrentLineBuffer[i] = ' ';
  784                 i++;
  785 
  786                 /* Ignore newline, this will merge the lines */
  787 
  788                 AslGbl_NextLineOffset = (UINT32) ftell (Handle);
  789                 AslGbl_CurrentLineNumber++;
  790                 State = DT_NORMAL_TEXT;
  791             }
  792             break;
  793 
  794         default:
  795 
  796             DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, "Unknown input state");
  797             return (ASL_EOF);
  798         }
  799     }
  800 }
  801 
  802 
  803 /******************************************************************************
  804  *
  805  * FUNCTION:    DtScanFile
  806  *
  807  * PARAMETERS:  Handle              - Open file handle for the source file
  808  *
  809  * RETURN:      Pointer to start of the constructed parse tree.
  810  *
  811  * DESCRIPTION: Scan source file, link all field names and values
  812  *              to the global parse tree: AslGbl_FieldList
  813  *
  814  *****************************************************************************/
  815 
  816 DT_FIELD *
  817 DtScanFile (
  818     FILE                    *Handle)
  819 {
  820     ACPI_STATUS             Status;
  821     UINT32                  Offset;
  822 
  823 
  824     ACPI_FUNCTION_NAME (DtScanFile);
  825 
  826 
  827     /* Get the file size */
  828 
  829     AslGbl_InputByteCount = CmGetFileSize (Handle);
  830     if (AslGbl_InputByteCount == ACPI_UINT32_MAX)
  831     {
  832         AslAbort ();
  833     }
  834 
  835     AslGbl_CurrentLineNumber = 0;
  836     AslGbl_CurrentLineOffset = 0;
  837     AslGbl_NextLineOffset = 0;
  838 
  839     /* Scan line-by-line */
  840 
  841     while ((Offset = DtGetNextLine (Handle, 0)) != ASL_EOF)
  842     {
  843         ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "Line %2.2u/%4.4X - %s",
  844             AslGbl_CurrentLineNumber, Offset, AslGbl_CurrentLineBuffer));
  845 
  846         Status = DtParseLine (AslGbl_CurrentLineBuffer,
  847             AslGbl_CurrentLineNumber, Offset);
  848         if (Status == AE_NOT_FOUND)
  849         {
  850             break;
  851         }
  852     }
  853 
  854     /* Dump the parse tree if debug enabled */
  855 
  856     DtDumpFieldList (AslGbl_FieldList);
  857     return (AslGbl_FieldList);
  858 }
  859 
  860 
  861 /*
  862  * Output functions
  863  */
  864 
  865 /******************************************************************************
  866  *
  867  * FUNCTION:    DtWriteBinary
  868  *
  869  * PARAMETERS:  DT_WALK_CALLBACK
  870  *
  871  * RETURN:      Status
  872  *
  873  * DESCRIPTION: Write one subtable of a binary ACPI table
  874  *
  875  *****************************************************************************/
  876 
  877 static void
  878 DtWriteBinary (
  879     DT_SUBTABLE             *Subtable,
  880     void                    *Context,
  881     void                    *ReturnValue)
  882 {
  883 
  884     FlWriteFile (ASL_FILE_AML_OUTPUT, Subtable->Buffer, Subtable->Length);
  885 }
  886 
  887 
  888 /******************************************************************************
  889  *
  890  * FUNCTION:    DtOutputBinary
  891  *
  892  * PARAMETERS:
  893  *
  894  * RETURN:      Status
  895  *
  896  * DESCRIPTION: Write entire binary ACPI table (result of compilation)
  897  *
  898  *****************************************************************************/
  899 
  900 void
  901 DtOutputBinary (
  902     DT_SUBTABLE             *RootTable)
  903 {
  904 
  905     if (!RootTable)
  906     {
  907         return;
  908     }
  909 
  910     /* Walk the entire parse tree, emitting the binary data */
  911 
  912     DtWalkTableTree (RootTable, DtWriteBinary, NULL, NULL);
  913 
  914     AslGbl_TableLength = CmGetFileSize (AslGbl_Files[ASL_FILE_AML_OUTPUT].Handle);
  915     if (AslGbl_TableLength == ACPI_UINT32_MAX)
  916     {
  917         AslAbort ();
  918     }
  919 }
  920 
  921 
  922 /*
  923  * Listing support
  924  */
  925 
  926 /******************************************************************************
  927  *
  928  * FUNCTION:    DtDumpBuffer
  929  *
  930  * PARAMETERS:  FileID              - Where to write buffer data
  931  *              Buffer              - Buffer to dump
  932  *              Offset              - Offset in current table
  933  *              Length              - Buffer Length
  934  *
  935  * RETURN:      None
  936  *
  937  * DESCRIPTION: Another copy of DumpBuffer routine (unfortunately).
  938  *
  939  * TBD: merge dump buffer routines
  940  *
  941  *****************************************************************************/
  942 
  943 static void
  944 DtDumpBuffer (
  945     UINT32                  FileId,
  946     UINT8                   *Buffer,
  947     UINT32                  Offset,
  948     UINT32                  Length)
  949 {
  950     UINT32                  i;
  951     UINT32                  j;
  952     UINT8                   BufChar;
  953 
  954 
  955     FlPrintFile (FileId, "Output: [%3.3Xh %4.4d %3.3Xh] ",
  956         Offset, Offset, Length);
  957 
  958     i = 0;
  959     while (i < Length)
  960     {
  961         if (i >= 16)
  962         {
  963             FlPrintFile (FileId, "%24s", "");
  964         }
  965 
  966         /* Print 16 hex chars */
  967 
  968         for (j = 0; j < 16;)
  969         {
  970             if (i + j >= Length)
  971             {
  972                 /* Dump fill spaces */
  973 
  974                 FlPrintFile (FileId, "   ");
  975                 j++;
  976                 continue;
  977             }
  978 
  979             FlPrintFile (FileId, "%02X ", Buffer[i+j]);
  980             j++;
  981         }
  982 
  983         FlPrintFile (FileId, " ");
  984         for (j = 0; j < 16; j++)
  985         {
  986             if (i + j >= Length)
  987             {
  988                 FlPrintFile (FileId, "\n\n");
  989                 return;
  990             }
  991 
  992             BufChar = Buffer[(ACPI_SIZE) i + j];
  993             if (isprint (BufChar))
  994             {
  995                 FlPrintFile (FileId, "%c", BufChar);
  996             }
  997             else
  998             {
  999                 FlPrintFile (FileId, ".");
 1000             }
 1001         }
 1002 
 1003         /* Done with that line. */
 1004 
 1005         FlPrintFile (FileId, "\n");
 1006         i += 16;
 1007     }
 1008 
 1009     FlPrintFile (FileId, "\n\n");
 1010 }
 1011 
 1012 
 1013 /******************************************************************************
 1014  *
 1015  * FUNCTION:    DtDumpFieldList
 1016  *
 1017  * PARAMETERS:  Field               - Root field
 1018  *
 1019  * RETURN:      None
 1020  *
 1021  * DESCRIPTION: Dump the entire field list
 1022  *
 1023  *****************************************************************************/
 1024 
 1025 void
 1026 DtDumpFieldList (
 1027     DT_FIELD                *Field)
 1028 {
 1029 
 1030     if (!AslGbl_DebugFlag || !Field)
 1031     {
 1032         return;
 1033     }
 1034 
 1035     DbgPrint (ASL_DEBUG_OUTPUT,  "\nField List:\n"
 1036         "LineNo   ByteOff  NameCol  Column   TableOff "
 1037         "Flags %32s : %s\n\n", "Name", "Value");
 1038 
 1039     while (Field)
 1040     {
 1041         DbgPrint (ASL_DEBUG_OUTPUT,
 1042             "%.08X %.08X %.08X %.08X %.08X %2.2X    %32s : %s\n",
 1043             Field->Line, Field->ByteOffset, Field->NameColumn,
 1044             Field->Column, Field->TableOffset, Field->Flags,
 1045             Field->Name, Field->Value);
 1046 
 1047         Field = Field->Next;
 1048     }
 1049 
 1050     DbgPrint (ASL_DEBUG_OUTPUT,  "\n\n");
 1051 }
 1052 
 1053 
 1054 /******************************************************************************
 1055  *
 1056  * FUNCTION:    DtDumpSubtableInfo, DtDumpSubtableTree
 1057  *
 1058  * PARAMETERS:  DT_WALK_CALLBACK
 1059  *
 1060  * RETURN:      None
 1061  *
 1062  * DESCRIPTION: Info - dump a subtable tree entry with extra information.
 1063  *              Tree - dump a subtable tree formatted by depth indentation.
 1064  *
 1065  *****************************************************************************/
 1066 
 1067 static void
 1068 DtDumpSubtableInfo (
 1069     DT_SUBTABLE             *Subtable,
 1070     void                    *Context,
 1071     void                    *ReturnValue)
 1072 {
 1073 
 1074     DbgPrint (ASL_DEBUG_OUTPUT,
 1075         "[%.04X] %24s %.08X %.08X %.08X %.08X %p %p %p %p\n",
 1076         Subtable->Depth, Subtable->Name, Subtable->Length, Subtable->TotalLength,
 1077         Subtable->SizeOfLengthField, Subtable->Flags, Subtable,
 1078         Subtable->Parent, Subtable->Child, Subtable->Peer);
 1079 }
 1080 
 1081 static void
 1082 DtDumpSubtableTree (
 1083     DT_SUBTABLE             *Subtable,
 1084     void                    *Context,
 1085     void                    *ReturnValue)
 1086 {
 1087 
 1088     DbgPrint (ASL_DEBUG_OUTPUT,
 1089         "[%.04X] %24s %*s%p (%.02X) - (%.02X)        %.02X\n",
 1090         Subtable->Depth, Subtable->Name, (4 * Subtable->Depth), " ",
 1091         Subtable, Subtable->Length, Subtable->TotalLength, *Subtable->Buffer);
 1092 }
 1093 
 1094 
 1095 /******************************************************************************
 1096  *
 1097  * FUNCTION:    DtDumpSubtableList
 1098  *
 1099  * PARAMETERS:  None
 1100  *
 1101  * RETURN:      None
 1102  *
 1103  * DESCRIPTION: Dump the raw list of subtables with information, and also
 1104  *              dump the subtable list in formatted tree format. Assists with
 1105  *              the development of new table code.
 1106  *
 1107  *****************************************************************************/
 1108 
 1109 void
 1110 DtDumpSubtableList (
 1111     void)
 1112 {
 1113 
 1114     if (!AslGbl_DebugFlag || !AslGbl_RootTable)
 1115     {
 1116         return;
 1117     }
 1118 
 1119     DbgPrint (ASL_DEBUG_OUTPUT,
 1120         "Subtable Info:\n"
 1121         "Depth                      Name Length   TotalLen LenSize  Flags    "
 1122         "This     Parent   Child    Peer\n\n");
 1123     DtWalkTableTree (AslGbl_RootTable, DtDumpSubtableInfo, NULL, NULL);
 1124 
 1125     DbgPrint (ASL_DEBUG_OUTPUT,
 1126         "\nSubtable Tree: (Depth, Name, Subtable, Length, TotalLength, Integer Value)\n\n");
 1127     DtWalkTableTree (AslGbl_RootTable, DtDumpSubtableTree, NULL, NULL);
 1128 
 1129     DbgPrint (ASL_DEBUG_OUTPUT, "\n");
 1130 }
 1131 
 1132 
 1133 /******************************************************************************
 1134  *
 1135  * FUNCTION:    DtWriteFieldToListing
 1136  *
 1137  * PARAMETERS:  Buffer              - Contains the compiled data
 1138  *              Field               - Field node for the input line
 1139  *              Length              - Length of the output data
 1140  *
 1141  * RETURN:      None
 1142  *
 1143  * DESCRIPTION: Write one field to the listing file (if listing is enabled).
 1144  *
 1145  *****************************************************************************/
 1146 
 1147 void
 1148 DtWriteFieldToListing (
 1149     UINT8                   *Buffer,
 1150     DT_FIELD                *Field,
 1151     UINT32                  Length)
 1152 {
 1153     UINT8                   FileByte;
 1154 
 1155 
 1156     if (!AslGbl_ListingFlag || !Field)
 1157     {
 1158         return;
 1159     }
 1160 
 1161     /* Dump the original source line */
 1162 
 1163     FlPrintFile (ASL_FILE_LISTING_OUTPUT, "Input:  ");
 1164     FlSeekFile (ASL_FILE_INPUT, Field->ByteOffset);
 1165 
 1166     while (FlReadFile (ASL_FILE_INPUT, &FileByte, 1) == AE_OK)
 1167     {
 1168         FlWriteFile (ASL_FILE_LISTING_OUTPUT, &FileByte, 1);
 1169         if (FileByte == '\n')
 1170         {
 1171             break;
 1172         }
 1173     }
 1174 
 1175     /* Dump the line as parsed and represented internally */
 1176 
 1177     FlPrintFile (ASL_FILE_LISTING_OUTPUT, "Parsed: %*s : %.64s",
 1178         Field->Column-4, Field->Name, Field->Value);
 1179 
 1180     if (strlen (Field->Value) > 64)
 1181     {
 1182         FlPrintFile (ASL_FILE_LISTING_OUTPUT, "...Additional data, length 0x%X\n",
 1183             (UINT32) strlen (Field->Value));
 1184     }
 1185 
 1186     FlPrintFile (ASL_FILE_LISTING_OUTPUT, "\n");
 1187 
 1188     /* Dump the hex data that will be output for this field */
 1189 
 1190     DtDumpBuffer (ASL_FILE_LISTING_OUTPUT, Buffer, Field->TableOffset, Length);
 1191 }
 1192 
 1193 
 1194 /******************************************************************************
 1195  *
 1196  * FUNCTION:    DtWriteTableToListing
 1197  *
 1198  * PARAMETERS:  None
 1199  *
 1200  * RETURN:      None
 1201  *
 1202  * DESCRIPTION: Write the entire compiled table to the listing file
 1203  *              in hex format
 1204  *
 1205  *****************************************************************************/
 1206 
 1207 void
 1208 DtWriteTableToListing (
 1209     void)
 1210 {
 1211     UINT8                   *Buffer;
 1212 
 1213 
 1214     if (!AslGbl_ListingFlag)
 1215     {
 1216         return;
 1217     }
 1218 
 1219     /* Read the entire table from the output file */
 1220 
 1221     Buffer = UtLocalCalloc (AslGbl_TableLength);
 1222     FlSeekFile (ASL_FILE_AML_OUTPUT, 0);
 1223     FlReadFile (ASL_FILE_AML_OUTPUT, Buffer, AslGbl_TableLength);
 1224 
 1225     /* Dump the raw table data */
 1226 
 1227     AcpiOsRedirectOutput (AslGbl_Files[ASL_FILE_LISTING_OUTPUT].Handle);
 1228 
 1229     AcpiOsPrintf ("\n%s: Length %d (0x%X)\n\n",
 1230         ACPI_RAW_TABLE_DATA_HEADER, AslGbl_TableLength, AslGbl_TableLength);
 1231     AcpiUtDumpBuffer (Buffer, AslGbl_TableLength, DB_BYTE_DISPLAY, 0);
 1232 
 1233     AcpiOsRedirectOutput (stdout);
 1234     ACPI_FREE (Buffer);
 1235 }

Cache object: b94512c6cbde78787603b6a4c390571b


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.