Import ACPICA 20101209.vendor/acpica/20101209

4 files changed, 84 insertions, 30 deletions

diff --git a/compiler/aslanalyze.c b/compiler/aslanalyze.c
index 1087bca67107..396c126f7134 100644
--- a/compiler/aslanalyze.c
+++ b/compiler/aslanalyze.c
@@ -684,19 +684,45 @@ AnCheckId (
     UINT32                  AlphaPrefixLength;
 
 
+    /* Only care about string versions of _HID/_CID (integers are legal) */
+
     if (Op->Asl.ParseOpcode != PARSEOP_STRING_LITERAL)
     {
         return;
     }
 
+    /* For both _HID and _CID, the string must be non-null */
+
     Length = strlen (Op->Asl.Value.String);
+    if (!Length)
+    {
+        AslError (ASL_ERROR, ASL_MSG_NULL_STRING,
+            Op, NULL);
+        return;
+    }
 
     /*
-     * If _HID/_CID is a string, all characters must be alphanumeric.
-     * One of the things we want to catch here is the use of
-     * a leading asterisk in the string -- an odd construct
-     * that certain platform manufacturers are fond of.
+     * One of the things we want to catch here is the use of a leading
+     * asterisk in the string -- an odd construct that certain platform
+     * manufacturers are fond of. Technically, a leading asterisk is OK
+     * for _CID, but a valid use of this has not been seen.
      */
+    if (*Op->Asl.Value.String == '*')
+    {
+        AslError (ASL_ERROR, ASL_MSG_LEADING_ASTERISK,
+            Op, Op->Asl.Value.String);
+        return;
+    }
+
+    /* _CID strings are bus-specific, no more checks can be performed */
+
+    if (Type == ASL_TYPE_CID)
+    {
+        return;
+    }
+
+    /* For _HID, all characters must be alphanumeric */
+
     for (i = 0; Op->Asl.Value.String[i]; i++)
     {
         if (!isalnum ((int) Op->Asl.Value.String[i]))
@@ -707,13 +733,6 @@ AnCheckId (
         }
     }
 
-    if (Type == ASL_TYPE_CID)
-    {
-        /* _CID strings are bus-specific, no more checks can be performed */
-
-        return;
-    }
-
     /* _HID String must be of the form "XXX####" or "ACPI####" */
 
     if ((Length < 7) || (Length > 8))
diff --git a/compiler/aslerror.c b/compiler/aslerror.c
index 59d3d20b6fb7..af20368c2aa0 100644
--- a/compiler/aslerror.c
+++ b/compiler/aslerror.c
@@ -241,6 +241,8 @@ AePrintException (
     UINT32                  ErrorColumn;
     FILE                    *OutputFile;
     FILE                    *SourceFile;
+    long                    FileSize;
+    BOOLEAN                 PrematureEOF = FALSE;
 
 
     if (Gbl_NoErrors)
@@ -289,6 +291,19 @@ AePrintException (
         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);
@@ -307,33 +322,42 @@ AePrintException (
                 fprintf (OutputFile, " %6u: ", Enode->LineNumber);
 
                 /*
-                 * Seek to the offset in the combined source file, read the source
-                 * line, and write it to the output.
+                 * If not at EOF, get the corresponding source code line and
+                 * display it. Don't attempt this if we have a premature EOF
+                 * condition.
                  */
-                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
+                if (!PrematureEOF)
                 {
-                    RActual = fread (&SourceByte, 1, 1, SourceFile);
-                    if (!RActual)
+                    /*
+                     * 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: Read error on source code temp file %s ***]",
+                            "[*** iASL: Seek error on source code temp file %s ***]",
                             Gbl_Files[ASL_FILE_SOURCE_OUTPUT].Filename);
                     }
-
-                    else while (RActual && SourceByte && (SourceByte != '\n'))
+                    else
                     {
-                        fwrite (&SourceByte, 1, 1, OutputFile);
                         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");
             }
         }
@@ -376,7 +400,7 @@ AePrintException (
                 ExtraMessage = NULL;
             }
 
-            if (Gbl_VerboseErrors)
+            if (Gbl_VerboseErrors && !PrematureEOF)
             {
                 SourceColumn = Enode->Column + Enode->FilenameLength + 6 + 2;
                 ErrorColumn = ASL_ERROR_LEVEL_LENGTH + 5 + 2 + 1;
@@ -406,6 +430,11 @@ AePrintException (
                 fprintf (OutputFile, " (%s)", ExtraMessage);
             }
 
+            if (PrematureEOF)
+            {
+                fprintf (OutputFile, " and premature End-Of-File");
+            }
+
             fprintf (OutputFile, "\n");
             if (Gbl_VerboseErrors)
             {
diff --git a/compiler/aslmessages.h b/compiler/aslmessages.h
index 04578003df94..c69f7a22945d 100644
--- a/compiler/aslmessages.h
+++ b/compiler/aslmessages.h
@@ -258,6 +258,9 @@ typedef enum
     ASL_MSG_NULL_DESCRIPTOR,
     ASL_MSG_UPPER_CASE,
     ASL_MSG_HID_LENGTH,
+    ASL_MSG_NULL_STRING,
+    ASL_MSG_LEADING_ASTERISK,
+
     ASL_MSG_INVALID_FIELD_NAME,
     ASL_MSG_INTEGER_SIZE,
     ASL_MSG_INVALID_HEX_INTEGER,
@@ -382,7 +385,7 @@ char                        *AslMessages [] = {
 /*    ASL_MSG_VENDOR_LIST */                "Too many vendor data bytes (7 max)",
 /*    ASL_MSG_WRITE */                      "Could not write file",
 /*    ASL_MSG_MULTIPLE_DEFAULT */           "More than one Default statement within Switch construct",
-/*    ASL_MSG_TIMEOUT */                    "Possible operator timeout is ignored",
+/*    ASL_MSG_TIMEOUT */                    "Result is not used, possible operator timeout will be missed",
 /*    ASL_MSG_RESULT_NOT_USED */            "Result is not used, operator has no effect",
 /*    ASL_MSG_NOT_REFERENCED */             "Namespace object is not referenced",
 /*    ASL_MSG_NON_ZERO */                   "Operand evaluates to zero",
@@ -403,6 +406,8 @@ char                        *AslMessages [] = {
 /*    ASL_MSG_NULL_DESCRIPTOR */            "Min/Max/Length/Gran are all zero, but no resource tag",
 /*    ASL_MSG_UPPER_CASE */                 "Non-hex letters must be upper case",
 /*    ASL_MSG_HID_LENGTH */                 "_HID string must be exactly 7 or 8 characters",
+/*    ASL_MSG_NULL_STRING */                "Invalid zero-length (null) string",
+/*    ASL_MSG_LEADING_ASTERISK */           "Invalid leading asterisk",
 
 /* These messages are used by the data table compiler only */
 
diff --git a/compiler/dtutils.c b/compiler/dtutils.c
index 2394b300868b..9f71036c61cf 100644
--- a/compiler/dtutils.c
+++ b/compiler/dtutils.c
@@ -573,6 +573,7 @@ DtGetFieldLength (
     case ACPI_DMT_UINT8:
     case ACPI_DMT_CHKSUM:
     case ACPI_DMT_SPACEID:
+    case ACPI_DMT_ACCWIDTH:
     case ACPI_DMT_IVRS:
     case ACPI_DMT_MADT:
     case ACPI_DMT_SRAT: