Import ACPICA 20120215.

1 files changed, 647 insertions, 0 deletions

diff --git a/source/compiler/aslerror.c b/source/compiler/aslerror.c
new file mode 100644
index 0000000..e02e234
--- /dev/null
+++ b/source/compiler/aslerror.c
@@ -0,0 +1,647 @@
+
+/******************************************************************************
+ *
+ * Module Name: aslerror - Error handling and statistics
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2012, 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 MERCHANTIBILITY 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.
+ */
+
+#define ASL_EXCEPTIONS
+#include "aslcompiler.h"
+
+#define _COMPONENT          ACPI_COMPILER
+        ACPI_MODULE_NAME    ("aslerror")
+
+/* Local prototypes */
+
+static void
+AeAddToErrorLog (
+    ASL_ERROR_MSG           *Enode);
+
+
+void
+AeClearErrorLog (
+    void)
+{
+    ASL_ERROR_MSG           *Enode = Gbl_ErrorLog;
+    ASL_ERROR_MSG           *Next;
+
+    /* Walk the error node list */
+
+    while (Enode)
+    {
+        Next = Enode->Next;
+        ACPI_FREE (Enode);
+        Enode = Next;
+    }
+
+    Gbl_ErrorLog = NULL;
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AeAddToErrorLog
+ *
+ * PARAMETERS:  Enode       - An error node to add to the log
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Add a new error node to the error log.  The error log is
+ *              ordered by the "logical" line number (cumulative line number
+ *              including all include files.)
+ *
+ ******************************************************************************/
+
+static void
+AeAddToErrorLog (
+    ASL_ERROR_MSG           *Enode)
+{
+    ASL_ERROR_MSG           *Next;
+    ASL_ERROR_MSG           *Prev;
+
+
+    /* If Gbl_ErrorLog is null, this is the first error node */
+
+    if (!Gbl_ErrorLog)
+    {
+        Gbl_ErrorLog = Enode;
+        return;
+    }
+
+    /*
+     * Walk error list until we find a line number greater than ours.
+     * List is sorted according to line number.
+     */
+    Prev = NULL;
+    Next = Gbl_ErrorLog;
+
+    while ((Next) &&
+           (Next->LogicalLineNumber <= Enode->LogicalLineNumber))
+    {
+        Prev = Next;
+        Next = Next->Next;
+    }
+
+    /* Found our place in the list */
+
+    Enode->Next = Next;
+
+    if (Prev)
+    {
+        Prev->Next = Enode;
+    }
+    else
+    {
+        Gbl_ErrorLog = Enode;
+    }
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AePrintException
+ *
+ * PARAMETERS:  FileId          - ID of output file
+ *              Enode           - Error node to print
+ *              Header          - Additional text before each message
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Print the contents of an error node.
+ *
+ * NOTE:        We don't use the FlxxxFile I/O functions here because on error
+ *              they abort the compiler and call this function!  Since we
+ *              are reporting errors here, we ignore most output errors and
+ *              just try to get out as much as we can.
+ *
+ ******************************************************************************/
+
+void
+AePrintException (
+    UINT32                  FileId,
+    ASL_ERROR_MSG           *Enode,
+    char                    *Header)
+{
+    UINT8                   SourceByte;
+    int                     Actual;
+    size_t                  RActual;
+    UINT32                  MsgLength;
+    char                    *MainMessage;
+    char                    *ExtraMessage;
+    UINT32                  SourceColumn;
+    UINT32                  ErrorColumn;
+    FILE                    *OutputFile;
+    FILE                    *SourceFile;
+    long                    FileSize;
+    BOOLEAN                 PrematureEOF = FALSE;
+
+
+    if (Gbl_NoErrors)
+    {
+        return;
+    }
+
+    /*
+     * Only listing files have a header, and remarks/optimizations
+     * are always output
+     */
+    if (!Header)
+    {
+        /* Ignore remarks if requested */
+
+        switch (Enode->Level)
+        {
+        case ASL_REMARK:
+            if (!Gbl_DisplayRemarks)
+            {
+                return;
+            }
+            break;
+
+        case ASL_OPTIMIZATION:
+            if (!Gbl_DisplayOptimizations)
+            {
+                return;
+            }
+            break;
+
+        default:
+            break;
+        }
+    }
+
+    /* Get the file handles */
+
+    OutputFile = Gbl_Files[FileId].Handle;
+
+    /* Use the merged header/source file if present, otherwise use input file */
+
+    SourceFile = Gbl_Files[ASL_FILE_SOURCE_OUTPUT].Handle;
+    if (!SourceFile)
+    {
+        SourceFile = Gbl_Files[ASL_FILE_INPUT].Handle;
+    }
+
+    if (SourceFile)
+    {
+        /* Determine if the error occurred at source file EOF */
+
+        fseek (SourceFile, 0, SEEK_END);
+        FileSize = ftell (SourceFile);
+
+        if ((long) Enode->LogicalByteOffset >= FileSize)
+        {
+            PrematureEOF = TRUE;
+        }
+    }
+
+    if (Header)
+    {
+        fprintf (OutputFile, "%s", Header);
+    }
+
+    /* Print filename and line number if present and valid */
+
+    if (Enode->Filename)
+    {
+        if (Gbl_VerboseErrors)
+        {
+            fprintf (OutputFile, "%6s", Enode->Filename);
+
+            if (Enode->LineNumber)
+            {
+                fprintf (OutputFile, " %6u: ", Enode->LineNumber);
+
+                /*
+                 * If not at EOF, get the corresponding source code line and
+                 * display it. Don't attempt this if we have a premature EOF
+                 * condition.
+                 */
+                if (!PrematureEOF)
+                {
+                    /*
+                     * Seek to the offset in the combined source file, read
+                     * the source line, and write it to the output.
+                     */
+                    Actual = fseek (SourceFile, (long) Enode->LogicalByteOffset,
+                                (int) SEEK_SET);
+                    if (Actual)
+                    {
+                        fprintf (OutputFile,
+                            "[*** iASL: Seek error on source code temp file %s ***]",
+                            Gbl_Files[ASL_FILE_SOURCE_OUTPUT].Filename);
+                    }
+                    else
+                    {
+                        RActual = fread (&SourceByte, 1, 1, SourceFile);
+                        if (!RActual)
+                        {
+                            fprintf (OutputFile,
+                                "[*** iASL: Read error on source code temp file %s ***]",
+                                Gbl_Files[ASL_FILE_SOURCE_OUTPUT].Filename);
+                        }
+
+                        else while (RActual && SourceByte && (SourceByte != '\n'))
+                        {
+                            fwrite (&SourceByte, 1, 1, OutputFile);
+                            RActual = fread (&SourceByte, 1, 1, SourceFile);
+                        }
+                    }
+                }
+
+                fprintf (OutputFile, "\n");
+            }
+        }
+        else
+        {
+            fprintf (OutputFile, "%s", Enode->Filename);
+
+            if (Enode->LineNumber)
+            {
+                fprintf (OutputFile, "(%u) : ", Enode->LineNumber);
+            }
+        }
+    }
+
+    /* NULL message ID, just print the raw message */
+
+    if (Enode->MessageId == 0)
+    {
+        fprintf (OutputFile, "%s\n", Enode->Message);
+    }
+    else
+    {
+        /* Decode the message ID */
+
+        fprintf (OutputFile, "%s %4.4d - ",
+                    AslErrorLevel[Enode->Level],
+                    Enode->MessageId + ((Enode->Level+1) * 1000));
+
+        MainMessage = AslMessages[Enode->MessageId];
+        ExtraMessage = Enode->Message;
+
+        if (Enode->LineNumber)
+        {
+            /* Main message: try to use string from AslMessages first */
+
+            if (!MainMessage)
+            {
+                MainMessage = "";
+            }
+
+            MsgLength = strlen (MainMessage);
+            if (MsgLength == 0)
+            {
+                /* Use the secondary/extra message as main message */
+
+                MainMessage = Enode->Message;
+                if (!MainMessage)
+                {
+                    MainMessage = "";
+                }
+
+                MsgLength = strlen (MainMessage);
+                ExtraMessage = NULL;
+            }
+
+            if (Gbl_VerboseErrors && !PrematureEOF)
+            {
+                SourceColumn = Enode->Column + Enode->FilenameLength + 6 + 2;
+                ErrorColumn = ASL_ERROR_LEVEL_LENGTH + 5 + 2 + 1;
+
+                if ((MsgLength + ErrorColumn) < (SourceColumn - 1))
+                {
+                    fprintf (OutputFile, "%*s%s",
+                        (int) ((SourceColumn - 1) - ErrorColumn),
+                        MainMessage, " ^ ");
+                }
+                else
+                {
+                    fprintf (OutputFile, "%*s %s",
+                        (int) ((SourceColumn - ErrorColumn) + 1), "^",
+                        MainMessage);
+                }
+            }
+            else
+            {
+                fprintf (OutputFile, " %s", MainMessage);
+            }
+
+            /* Print the extra info message if present */
+
+            if (ExtraMessage)
+            {
+                fprintf (OutputFile, " (%s)", ExtraMessage);
+            }
+
+            if (PrematureEOF)
+            {
+                fprintf (OutputFile, " and premature End-Of-File");
+            }
+
+            fprintf (OutputFile, "\n");
+            if (Gbl_VerboseErrors)
+            {
+                fprintf (OutputFile, "\n");
+            }
+        }
+        else
+        {
+            fprintf (OutputFile, " %s %s\n\n", MainMessage, ExtraMessage);
+        }
+    }
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AePrintErrorLog
+ *
+ * PARAMETERS:  FileId           - Where to output the error log
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Print the entire contents of the error log
+ *
+ ******************************************************************************/
+
+void
+AePrintErrorLog (
+    UINT32                  FileId)
+{
+    ASL_ERROR_MSG           *Enode = Gbl_ErrorLog;
+
+
+    /* Walk the error node list */
+
+    while (Enode)
+    {
+        AePrintException (FileId, Enode, NULL);
+        Enode = Enode->Next;
+    }
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AslCommonError
+ *
+ * PARAMETERS:  Level               - Seriousness (Warning/error, etc.)
+ *              MessageId           - Index into global message buffer
+ *              CurrentLineNumber   - Actual file line number
+ *              LogicalLineNumber   - Cumulative line number
+ *              LogicalByteOffset   - Byte offset in source file
+ *              Column              - Column in current line
+ *              Filename            - source filename
+ *              ExtraMessage        - additional error message
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Create a new error node and add it to the error log
+ *
+ ******************************************************************************/
+
+void
+AslCommonError (
+    UINT8                   Level,
+    UINT8                   MessageId,
+    UINT32                  CurrentLineNumber,
+    UINT32                  LogicalLineNumber,
+    UINT32                  LogicalByteOffset,
+    UINT32                  Column,
+    char                    *Filename,
+    char                    *ExtraMessage)
+{
+    UINT32                  MessageSize;
+    char                    *MessageBuffer = NULL;
+    ASL_ERROR_MSG           *Enode;
+
+
+    Enode = UtLocalCalloc (sizeof (ASL_ERROR_MSG));
+
+    if (ExtraMessage)
+    {
+        /* Allocate a buffer for the message and a new error node */
+
+        MessageSize   = strlen (ExtraMessage) + 1;
+        MessageBuffer = UtLocalCalloc (MessageSize);
+
+        /* Keep a copy of the extra message */
+
+        ACPI_STRCPY (MessageBuffer, ExtraMessage);
+    }
+
+    /* Initialize the error node */
+
+    if (Filename)
+    {
+        Enode->Filename       = Filename;
+        Enode->FilenameLength = strlen (Filename);
+        if (Enode->FilenameLength < 6)
+        {
+            Enode->FilenameLength = 6;
+        }
+    }
+
+    Enode->MessageId            = MessageId;
+    Enode->Level                = Level;
+    Enode->LineNumber           = CurrentLineNumber;
+    Enode->LogicalLineNumber    = LogicalLineNumber;
+    Enode->LogicalByteOffset    = LogicalByteOffset;
+    Enode->Column               = Column;
+    Enode->Message              = MessageBuffer;
+
+    /* Add the new node to the error node list */
+
+    AeAddToErrorLog (Enode);
+
+    if (Gbl_DebugFlag)
+    {
+        /* stderr is a file, send error to it immediately */
+
+        AePrintException (ASL_FILE_STDERR, Enode, NULL);
+    }
+
+    Gbl_ExceptionCount[Level]++;
+    if (Gbl_ExceptionCount[ASL_ERROR] > ASL_MAX_ERROR_COUNT)
+    {
+        printf ("\nMaximum error count (%u) exceeded\n", ASL_MAX_ERROR_COUNT);
+
+        Gbl_SourceLine = 0;
+        Gbl_NextError = Gbl_ErrorLog;
+        CmDoOutputFiles ();
+        CmCleanupAndExit ();
+        exit(1);
+    }
+
+    return;
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AslError
+ *
+ * PARAMETERS:  Level               - Seriousness (Warning/error, etc.)
+ *              MessageId           - Index into global message buffer
+ *              Op                  - Parse node where error happened
+ *              ExtraMessage        - additional error message
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Main error reporting routine for the ASL compiler (all code
+ *              except the parser.)
+ *
+ ******************************************************************************/
+
+void
+AslError (
+    UINT8                   Level,
+    UINT8                   MessageId,
+    ACPI_PARSE_OBJECT       *Op,
+    char                    *ExtraMessage)
+{
+
+    switch (Level)
+    {
+    case ASL_WARNING2:
+    case ASL_WARNING3:
+        if (Gbl_WarningLevel < Level)
+        {
+            return;
+        }
+        break;
+
+    default:
+        break;
+    }
+
+
+    if (Op)
+    {
+        AslCommonError (Level, MessageId, Op->Asl.LineNumber,
+                        Op->Asl.LogicalLineNumber,
+                        Op->Asl.LogicalByteOffset,
+                        Op->Asl.Column,
+                        Op->Asl.Filename, ExtraMessage);
+    }
+    else
+    {
+        AslCommonError (Level, MessageId, 0,
+                        0, 0, 0, NULL, ExtraMessage);
+    }
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AslCoreSubsystemError
+ *
+ * PARAMETERS:  Op                  - Parse node where error happened
+ *              Status              - The ACPI CA Exception
+ *              ExtraMessage        - additional error message
+ *              Abort               - TRUE -> Abort compilation
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Error reporting routine for exceptions returned by the ACPI
+ *              CA core subsystem.
+ *
+ ******************************************************************************/
+
+void
+AslCoreSubsystemError (
+    ACPI_PARSE_OBJECT       *Op,
+    ACPI_STATUS             Status,
+    char                    *ExtraMessage,
+    BOOLEAN                 Abort)
+{
+
+    sprintf (MsgBuffer, "%s %s", AcpiFormatException (Status), ExtraMessage);
+
+    if (Op)
+    {
+        AslCommonError (ASL_ERROR, ASL_MSG_CORE_EXCEPTION, Op->Asl.LineNumber,
+                        Op->Asl.LogicalLineNumber,
+                        Op->Asl.LogicalByteOffset,
+                        Op->Asl.Column,
+                        Op->Asl.Filename, MsgBuffer);
+    }
+    else
+    {
+        AslCommonError (ASL_ERROR, ASL_MSG_CORE_EXCEPTION, 0,
+                        0, 0, 0, NULL, MsgBuffer);
+    }
+
+    if (Abort)
+    {
+        AslAbort ();
+    }
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AslCompilererror
+ *
+ * PARAMETERS:  CompilerMessage         - Error message from the parser
+ *
+ * RETURN:      Status (0 for now)
+ *
+ * DESCRIPTION: Report an error situation discovered in a production
+ *              NOTE: don't change the name of this function, it is called
+ *              from the auto-generated parser.
+ *
+ ******************************************************************************/
+
+int
+AslCompilererror (
+    const char              *CompilerMessage)
+{
+
+    AslCommonError (ASL_ERROR, ASL_MSG_SYNTAX, Gbl_CurrentLineNumber,
+        Gbl_LogicalLineNumber, Gbl_CurrentLineOffset,
+        Gbl_CurrentColumn, Gbl_Files[ASL_FILE_INPUT].Filename,
+        ACPI_CAST_PTR (char, CompilerMessage));
+
+    return 0;
+}
+
+