sys/contrib/dev/acpica/source/compiler/aslparser.y

   1 %{
   2 /******************************************************************************
   3  *
   4  * Module Name: aslparser.y - Master Bison/Yacc input file for iASL
   5  *
   6  *****************************************************************************/
   7
   8 /******************************************************************************
   9  *
  10  * 1. Copyright Notice
  11  *
  12  * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp.
  13  * All rights reserved.
  14  *
  15  * 2. License
  16  *
  17  * 2.1. This is your license from Intel Corp. under its intellectual property
  18  * rights. You may have additional license terms from the party that provided
  19  * you this software, covering your right to use that party's intellectual
  20  * property rights.
  21  *
  22  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
  23  * copy of the source code appearing in this file ("Covered Code") an
  24  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
  25  * base code distributed originally by Intel ("Original Intel Code") to copy,
  26  * make derivatives, distribute, use and display any portion of the Covered
  27  * Code in any form, with the right to sublicense such rights; and
  28  *
  29  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
  30  * license (with the right to sublicense), under only those claims of Intel
  31  * patents that are infringed by the Original Intel Code, to make, use, sell,
  32  * offer to sell, and import the Covered Code and derivative works thereof
  33  * solely to the minimum extent necessary to exercise the above copyright
  34  * license, and in no event shall the patent license extend to any additions
  35  * to or modifications of the Original Intel Code. No other license or right
  36  * is granted directly or by implication, estoppel or otherwise;
  37  *
  38  * The above copyright and patent license is granted only if the following
  39  * conditions are met:
  40  *
  41  * 3. Conditions
  42  *
  43  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
  44  * Redistribution of source code of any substantial portion of the Covered
  45  * Code or modification with rights to further distribute source must include
  46  * the above Copyright Notice, the above License, this list of Conditions,
  47  * and the following Disclaimer and Export Compliance provision. In addition,
  48  * Licensee must cause all Covered Code to which Licensee contributes to
  49  * contain a file documenting the changes Licensee made to create that Covered
  50  * Code and the date of any change. Licensee must include in that file the
  51  * documentation of any changes made by any predecessor Licensee. Licensee
  52  * must include a prominent statement that the modification is derived,
  53  * directly or indirectly, from Original Intel Code.
  54  *
  55  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
  56  * Redistribution of source code of any substantial portion of the Covered
  57  * Code or modification without rights to further distribute source must
  58  * include the following Disclaimer and Export Compliance provision in the
  59  * documentation and/or other materials provided with distribution. In
  60  * addition, Licensee may not authorize further sublicense of source of any
  61  * portion of the Covered Code, and must include terms to the effect that the
  62  * license from Licensee to its licensee is limited to the intellectual
  63  * property embodied in the software Licensee provides to its licensee, and
  64  * not to intellectual property embodied in modifications its licensee may
  65  * make.
  66  *
  67  * 3.3. Redistribution of Executable. Redistribution in executable form of any
  68  * substantial portion of the Covered Code or modification must reproduce the
  69  * above Copyright Notice, and the following Disclaimer and Export Compliance
  70  * provision in the documentation and/or other materials provided with the
  71  * distribution.
  72  *
  73  * 3.4. Intel retains all right, title, and interest in and to the Original
  74  * Intel Code.
  75  *
  76  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
  77  * Intel shall be used in advertising or otherwise to promote the sale, use or
  78  * other dealings in products derived from or relating to the Covered Code
  79  * without prior written authorization from Intel.
  80  *
  81  * 4. Disclaimer and Export Compliance
  82  *
  83  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
  84  * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
  85  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
  86  * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
  87  * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
  88  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
  89  * PARTICULAR PURPOSE.
  90  *
  91  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
  92  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
  93  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
  94  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
  95  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
  96  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
  97  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
  98  * LIMITED REMEDY.
  99  *
 100  * 4.3. Licensee shall not export, either directly or indirectly, any of this
 101  * software or system incorporating such software without first obtaining any
 102  * required license or other approval from the U. S. Department of Commerce or
 103  * any other agency or department of the United States Government. In the
 104  * event Licensee exports any such software from the United States or
 105  * re-exports any such software from a foreign destination, Licensee shall
 106  * ensure that the distribution and export/re-export of the software is in
 107  * compliance with all laws, regulations, orders, or other restrictions of the
 108  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
 109  * any of its subsidiaries will export/re-export any technical data, process,
 110  * software, or service, directly or indirectly, to any country for which the
 111  * United States government or any agency thereof requires an export license,
 112  * other governmental approval, or letter of assurance, without first obtaining
 113  * such license, approval or letter.
 114  *
 115  *****************************************************************************
 116  *
 117  * Alternatively, you may choose to be licensed under the terms of the
 118  * following license:
 119  *
 120  * Redistribution and use in source and binary forms, with or without
 121  * modification, are permitted provided that the following conditions
 122  * are met:
 123  * 1. Redistributions of source code must retain the above copyright
 124  *    notice, this list of conditions, and the following disclaimer,
 125  *    without modification.
 126  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 127  *    substantially similar to the "NO WARRANTY" disclaimer below
 128  *    ("Disclaimer") and any redistribution must be conditioned upon
 129  *    including a substantially similar Disclaimer requirement for further
 130  *    binary redistribution.
 131  * 3. Neither the names of the above-listed copyright holders nor the names
 132  *    of any contributors may be used to endorse or promote products derived
 133  *    from this software without specific prior written permission.
 134  *
 135  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 136  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 137  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 138  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 139  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 140  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 141  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 142  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 143  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 144  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 145  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 146  *
 147  * Alternatively, you may choose to be licensed under the terms of the
 148  * GNU General Public License ("GPL") version 2 as published by the Free
 149  * Software Foundation.
 150  *
 151  *****************************************************************************/
 152
 153 #include "aslcompiler.h"
 154 #include "acpi.h"
 155 #include "accommon.h"
 156
 157 #define _COMPONENT          ACPI_COMPILER
 158         ACPI_MODULE_NAME    ("aslparse")
 159
 160 /*
 161  * Global Notes:
 162  *
 163  * October 2005: The following list terms have been optimized (from the
 164  * original ASL grammar in the ACPI specification) to force the immediate
 165  * reduction of each list item so that the parse stack use doesn't increase on
 166  * each list element and possibly overflow on very large lists (>4000 items).
 167  * This dramatically reduces use of the parse stack overall.
 168  *
 169  *      ArgList, TermList, ByteList, DWordList, PackageList,
 170  *      ResourceMacroList, and FieldUnitList
 171  */
 172
 173 void *
 174 AslLocalAllocate (
 175     unsigned int            Size);
 176
 177
 178 /* Bison/yacc configuration */
 179
 180 #define static
 181 #undef malloc
 182 #define malloc              AslLocalAllocate
 183 #undef alloca
 184 #define alloca              AslLocalAllocate
 185 #define yytname             AslCompilername
 186
 187 #define YYINITDEPTH         600             /* State stack depth */
 188 #define YYDEBUG             1               /* Enable debug output */
 189 #define YYERROR_VERBOSE     1               /* Verbose error messages */
 190 #define YYFLAG              -32768
 191
 192 /* Define YYMALLOC/YYFREE to prevent redefinition errors  */
 193
 194 #define YYMALLOC            AslLocalAllocate
 195 #define YYFREE              ACPI_FREE
 196 %}
 197
 198 /*
 199  * Declare the type of values in the grammar
 200  */
 201 %union {
 202     UINT64              i;
 203     char                *s;
 204     ACPI_PARSE_OBJECT   *n;
 205 }
 206
 207 /*
 208  * These shift/reduce conflicts are expected. There should be zero
 209  * reduce/reduce conflicts.
 210  */
 211 %expect 118
 212
 213 /*! [Begin] no source code translation */
 214
 215 /*
 216  * The M4 macro processor is used to bring in the parser items,
 217  * in order to keep this master file smaller, and to break up
 218  * the various parser items.
 219  */
 220 m4_define(NoEcho)
 221
 222 /* Token types */
 223
 224 m4_include(asltokens.y)
 225
 226 /* Production types/names */
 227
 228 m4_include(asltypes.y)
 229 %%
 230
 231 /* Production rules */
 232
 233 m4_include(aslrules.y)
 234 m4_include(aslprimaries.y)
 235 m4_include(aslcstyle.y)
 236 m4_include(aslkeywords.y)
 237 m4_include(aslresources.y)
 238 m4_include(aslhelpers.y)
 239 %%
 240
 241 /*! [End] no source code translation !*/
 242
 243 /* Local support functions in C */
 244
 245 m4_include(aslsupport.y)