1 /******************************************************************************
3 * Module Name: dtcompile.c - Front-end for data table compiler
5 *****************************************************************************/
8 * Copyright (C) 2000 - 2014, Intel Corp.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
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15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
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31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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44 #define _DECLARE_DT_GLOBALS
46 #include "aslcompiler.h"
47 #include "dtcompiler.h"
49 #define _COMPONENT DT_COMPILER
50 ACPI_MODULE_NAME ("dtcompile")
52 static char VersionString[9];
55 /* Local prototypes */
70 /******************************************************************************
72 * FUNCTION: DtDoCompile
78 * DESCRIPTION: Main entry point for the data table compiler.
80 * Note: Assumes Gbl_Files[ASL_FILE_INPUT] is initialized and the file is
81 * open at seek offset zero.
83 *****************************************************************************/
94 /* Initialize globals */
96 Status = DtInitialize ();
97 if (ACPI_FAILURE (Status))
99 printf ("Error during compiler initialization, 0x%X\n", Status);
105 Event = UtBeginEvent ("Preprocess input file");
109 if (Gbl_PreprocessOnly)
115 * Scan the input file (file is already open) and
116 * build the parse tree
118 Event = UtBeginEvent ("Scan and parse input file");
119 FieldList = DtScanFile (Gbl_Files[ASL_FILE_INPUT].Handle);
122 /* Did the parse tree get successfully constructed? */
126 /* TBD: temporary error message. Msgs should come from function above */
128 DtError (ASL_ERROR, ASL_MSG_SYNTAX, NULL,
129 "Input file does not appear to be an ASL or data table source file");
135 Event = UtBeginEvent ("Compile parse tree");
138 * Compile the parse tree
140 Status = DtCompileDataTable (&FieldList);
143 if (ACPI_FAILURE (Status))
145 /* TBD: temporary error message. Msgs should come from function above */
147 DtError (ASL_ERROR, ASL_MSG_SYNTAX, NULL,
148 "Could not compile input file");
153 /* Create/open the binary output file */
155 Gbl_Files[ASL_FILE_AML_OUTPUT].Filename = NULL;
156 Status = FlOpenAmlOutputFile (Gbl_OutputFilenamePrefix);
157 if (ACPI_FAILURE (Status))
162 /* Write the binary, then the optional hex file */
164 DtOutputBinary (Gbl_RootTable);
166 DtWriteTableToListing ();
170 AcpiUtDeleteCaches ();
177 /******************************************************************************
179 * FUNCTION: DtInitialize
185 * DESCRIPTION: Initialize data table compiler globals. Enables multiple
186 * compiles per invocation.
188 *****************************************************************************/
197 Status = AcpiOsInitialize ();
198 if (ACPI_FAILURE (Status))
203 Status = AcpiUtInitGlobals ();
204 if (ACPI_FAILURE (Status))
209 Gbl_FieldList = NULL;
210 Gbl_RootTable = NULL;
211 Gbl_SubtableStack = NULL;
213 sprintf (VersionString, "%X", (UINT32) ACPI_CA_VERSION);
218 /******************************************************************************
220 * FUNCTION: DtInsertCompilerIds
222 * PARAMETERS: FieldList - Current field list pointer
226 * DESCRIPTION: Insert the IDs (Name, Version) of the current compiler into
227 * the original ACPI table header.
229 *****************************************************************************/
232 DtInsertCompilerIds (
240 * Don't insert current compiler ID if requested. Used for compiler
241 * debug/validation only.
243 if (Gbl_UseOriginalCompilerId)
248 /* Walk to the Compiler fields at the end of the header */
251 for (i = 0; i < 7; i++)
256 Next->Value = ASL_CREATOR_ID;
257 Next->Flags = DT_FIELD_NOT_ALLOCATED;
260 Next->Value = VersionString;
261 Next->Flags = DT_FIELD_NOT_ALLOCATED;
265 /******************************************************************************
267 * FUNCTION: DtCompileDataTable
269 * PARAMETERS: FieldList - Current field list pointer
273 * DESCRIPTION: Entry point to compile one data table
275 *****************************************************************************/
279 DT_FIELD **FieldList)
281 ACPI_DMTABLE_DATA *TableData;
282 DT_SUBTABLE *Subtable;
284 ACPI_TABLE_HEADER *AcpiTableHeader;
286 DT_FIELD *RootField = *FieldList;
289 /* Verify that we at least have a table signature and save it */
291 Signature = DtGetFieldValue (*FieldList);
294 sprintf (MsgBuffer, "Expected \"%s\"", "Signature");
295 DtNameError (ASL_ERROR, ASL_MSG_INVALID_FIELD_NAME,
296 *FieldList, MsgBuffer);
300 Gbl_Signature = UtStringCacheCalloc (ACPI_STRLEN (Signature) + 1);
301 strcpy (Gbl_Signature, Signature);
304 * Handle tables that don't use the common ACPI table header structure.
305 * Currently, these are the FACS and RSDP. Also check for an OEMx table,
306 * these tables have user-defined contents.
308 if (ACPI_COMPARE_NAME (Signature, ACPI_SIG_FACS))
310 Status = DtCompileFacs (FieldList);
311 if (ACPI_FAILURE (Status))
319 else if (ACPI_VALIDATE_RSDP_SIG (Signature))
321 Status = DtCompileRsdp (FieldList);
324 else if (ACPI_COMPARE_NAME (Signature, ACPI_SIG_S3PT))
326 Status = DtCompileS3pt (FieldList);
327 if (ACPI_FAILURE (Status))
337 * All other tables must use the common ACPI table header. Insert the
338 * current iASL IDs (name, version), and compile the header now.
340 DtInsertCompilerIds (*FieldList);
342 Status = DtCompileTable (FieldList, AcpiDmTableInfoHeader,
343 &Gbl_RootTable, TRUE);
344 if (ACPI_FAILURE (Status))
349 DtPushSubtable (Gbl_RootTable);
351 /* Validate the signature via the ACPI table list */
353 TableData = AcpiDmGetTableData (Signature);
354 if (!TableData || Gbl_CompileGeneric)
356 DtCompileGeneric ((void **) FieldList);
360 /* Dispatch to per-table compile */
362 if (TableData->CmTableHandler)
364 /* Complex table, has a handler */
366 Status = TableData->CmTableHandler ((void **) FieldList);
367 if (ACPI_FAILURE (Status))
372 else if (TableData->TableInfo)
374 /* Simple table, just walk the info table */
377 Status = DtCompileTable (FieldList, TableData->TableInfo,
379 if (ACPI_FAILURE (Status))
384 DtInsertSubtable (Gbl_RootTable, Subtable);
389 DtFatal (ASL_MSG_COMPILER_INTERNAL, *FieldList,
390 "Missing table dispatch info");
396 /* Set the final table length and then the checksum */
399 AcpiTableHeader = ACPI_CAST_PTR (
400 ACPI_TABLE_HEADER, Gbl_RootTable->Buffer);
401 DtSetTableChecksum (&AcpiTableHeader->Checksum);
403 DtDumpFieldList (RootField);
404 DtDumpSubtableList ();
409 /******************************************************************************
411 * FUNCTION: DtCompileTable
413 * PARAMETERS: Field - Current field list pointer
414 * Info - Info table for this ACPI table
415 * RetSubtable - Compile result of table
416 * Required - If this subtable must exist
420 * DESCRIPTION: Compile a subtable
422 *****************************************************************************/
427 ACPI_DMTABLE_INFO *Info,
428 DT_SUBTABLE **RetSubtable,
431 DT_FIELD *LocalField;
433 DT_SUBTABLE *Subtable;
434 DT_SUBTABLE *InlineSubtable;
435 UINT32 FieldLength = 0;
438 UINT8 *FlagBuffer = NULL;
440 UINT32 CurrentFlagByteOffset = 0;
444 if (!Field || !*Field)
446 return (AE_BAD_PARAMETER);
449 /* Ignore optional subtable if name does not match */
451 if ((Info->Flags & DT_OPTIONAL) &&
452 ACPI_STRCMP ((*Field)->Name, Info->Name))
458 Length = DtGetSubtableLength (*Field, Info);
459 if (Length == ASL_EOF)
464 Subtable = UtSubtableCacheCalloc ();
468 String = UtStringCacheCalloc (Length);
469 Subtable->Buffer = ACPI_CAST_PTR (UINT8, String);
472 Subtable->Length = Length;
473 Subtable->TotalLength = Length;
474 Buffer = Subtable->Buffer;
479 * Main loop walks the info table for this ACPI table or subtable
481 for (; Info->Name; Info++)
483 if (Info->Opcode == ACPI_DMT_EXTRA_TEXT)
490 sprintf (MsgBuffer, "Found NULL field - Field name \"%s\" needed",
492 DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, MsgBuffer);
493 Status = AE_BAD_DATA;
497 /* Maintain table offsets */
499 LocalField->TableOffset = Gbl_CurrentTableOffset;
500 FieldLength = DtGetFieldLength (LocalField, Info);
501 Gbl_CurrentTableOffset += FieldLength;
503 FieldType = DtGetFieldType (Info);
504 Gbl_InputFieldCount++;
508 case DT_FIELD_TYPE_FLAGS_INTEGER:
510 * Start of the definition of a flags field.
511 * This master flags integer starts at value zero, in preparation
512 * to compile and insert the flag fields from the individual bits
514 LocalField = LocalField->Next;
518 CurrentFlagByteOffset = Info->Offset;
521 case DT_FIELD_TYPE_FLAG:
523 /* Individual Flag field, can be multiple bits */
528 * We must increment the FlagBuffer when we have crossed
529 * into the next flags byte within the flags field
530 * of type DT_FIELD_TYPE_FLAGS_INTEGER.
532 FlagBuffer += (Info->Offset - CurrentFlagByteOffset);
533 CurrentFlagByteOffset = Info->Offset;
535 DtCompileFlag (FlagBuffer, LocalField, Info);
539 /* TBD - this is an internal error */
542 LocalField = LocalField->Next;
546 case DT_FIELD_TYPE_INLINE_SUBTABLE:
548 * Recursion (one level max): compile GAS (Generic Address)
549 * or Notify in-line subtable
553 if (Info->Opcode == ACPI_DMT_GAS)
555 Status = DtCompileTable (Field, AcpiDmTableInfoGas,
556 &InlineSubtable, TRUE);
560 Status = DtCompileTable (Field, AcpiDmTableInfoHestNotify,
561 &InlineSubtable, TRUE);
564 if (ACPI_FAILURE (Status))
569 DtSetSubtableLength (InlineSubtable);
571 ACPI_MEMCPY (Buffer, InlineSubtable->Buffer, FieldLength);
575 case DT_FIELD_TYPE_LABEL:
577 DtWriteFieldToListing (Buffer, LocalField, 0);
578 LocalField = LocalField->Next;
583 /* Normal case for most field types (Integer, String, etc.) */
585 DtCompileOneField (Buffer, LocalField,
586 FieldLength, FieldType, Info->Flags);
588 DtWriteFieldToListing (Buffer, LocalField, FieldLength);
589 LocalField = LocalField->Next;
591 if (Info->Flags & DT_LENGTH)
593 /* Field is an Integer that will contain a subtable length */
595 Subtable->LengthField = Buffer;
596 Subtable->SizeOfLengthField = FieldLength;
602 Buffer += FieldLength;
606 *RetSubtable = Subtable;
610 ACPI_FREE (Subtable->Buffer);
611 ACPI_FREE (Subtable);