Import ACPICA 20120420.

1 files changed, 47 insertions, 24 deletions

diff --git a/source/compiler/prscan.c b/source/compiler/prscan.c
index 3719ca6..3013951 100644
--- a/source/compiler/prscan.c
+++ b/source/compiler/prscan.c
@@ -161,9 +161,6 @@ PrInitializeGlobals (
     Gbl_CurrentLineNumber = 0;
     Gbl_PreprocessorLineNumber = 1;
     Gbl_PreprocessorError = FALSE;
-
-    Gbl_MapBlockHead = UtLocalCalloc (sizeof (PR_LINE_MAPPING));
-    Gbl_MapBlockHead->Map = UtLocalCalloc (PR_LINES_PER_BLOCK * sizeof (UINT32));
 }
 
 
@@ -186,7 +183,6 @@ PrTerminatePreprocessor (
     void)
 {
     PR_DEFINE_INFO          *DefineInfo;
-    PR_LINE_MAPPING         *MapInfo;
 
 
     /*
@@ -202,17 +198,6 @@ PrTerminatePreprocessor (
         ACPI_FREE (DefineInfo->Identifier);
         ACPI_FREE (DefineInfo);
     }
-
-    /* Clear the line number mappings */
-
-    while (Gbl_MapBlockHead)
-    {
-        MapInfo = Gbl_MapBlockHead;
-        Gbl_MapBlockHead = MapInfo->Next;
-
-        ACPI_FREE (MapInfo->Map);
-        ACPI_FREE (MapInfo);
-    }
 }
 
 
@@ -393,8 +378,6 @@ PrPreprocessInputFile (
             Token = PrGetNextToken (NULL, PR_TOKEN_SEPARATORS, &Next);
         }
 
-        /* Write the possibly modified line to the .i file*/
-
 #if 0
 /* Line prefix */
         FlPrintFile (ASL_FILE_PREPROCESSOR, "/* %14s  %.5u  i:%.5u */ ",
@@ -402,11 +385,27 @@ PrPreprocessInputFile (
             Gbl_CurrentLineNumber, Gbl_PreprocessorLineNumber);
 #endif
 
-        FlWriteFile (ASL_FILE_PREPROCESSOR, Gbl_CurrentLineBuffer,
-            strlen (Gbl_CurrentLineBuffer));
+        /*
+         * Emit a #line directive if necessary, to keep the line numbers in
+         * the (.i) file synchronized with the original source code file, so
+         * that the correct line number appears in any error messages
+         * generated by the actual compiler.
+         */
+        if (Gbl_CurrentLineNumber > (Gbl_PreviousLineNumber + 1))
+        {
+            FlPrintFile (ASL_FILE_PREPROCESSOR, "#line %u\n",
+                Gbl_CurrentLineNumber);
+        }
 
-        PrSetLineNumber (Gbl_CurrentLineNumber, Gbl_PreprocessorLineNumber);
+        Gbl_PreviousLineNumber = Gbl_CurrentLineNumber;
         Gbl_PreprocessorLineNumber++;
+
+        /*
+         * Now we can write the possibly modified source line to the
+         * preprocessor (.i) file
+         */
+        FlWriteFile (ASL_FILE_PREPROCESSOR, Gbl_CurrentLineBuffer,
+            strlen (Gbl_CurrentLineBuffer));
     }
 }
 
@@ -546,8 +545,9 @@ PrDoDirective (
         if (*(&Gbl_CurrentLineBuffer[TokenOffset]) == '(')
         {
 #ifndef MACROS_SUPPORTED
-            AcpiOsPrintf ("#define macros not supported\n");
-            goto SyntaxError;
+            AcpiOsPrintf ("%s ERROR - line %u: #define macros are not supported yet\n",
+                Gbl_CurrentLineBuffer, Gbl_CurrentLineNumber);
+            exit(1);
 #else
             PrAddMacro (Token, Next);
 #endif
@@ -660,6 +660,31 @@ PrDoDirective (
         PrOpenIncludeFile (Token);
         break;
 
+    case PR_DIRECTIVE_LINE:
+        TokenOffset = Token - Gbl_MainTokenBuffer;
+
+        Status = PrResolveIntegerExpression (
+            &Gbl_CurrentLineBuffer[TokenOffset-1], &Value);
+        if (ACPI_FAILURE (Status))
+        {
+            return;
+        }
+
+        DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID
+            "User #line invocation %s\n", Gbl_CurrentLineNumber,
+            Token);
+
+        /* Update local line numbers */
+
+        Gbl_CurrentLineNumber = (UINT32) Value;
+        Gbl_PreviousLineNumber = 0;
+
+        /* Emit #line into the preprocessor file */
+
+        FlPrintFile (ASL_FILE_PREPROCESSOR, "#line %u \"%s\"\n",
+            Gbl_CurrentLineNumber, Gbl_Files[ASL_FILE_INPUT].Filename);
+        break;
+
     case PR_DIRECTIVE_PRAGMA:
         /* Only "#pragma message" supported at this time */
 
@@ -692,8 +717,6 @@ PrDoDirective (
             THIS_TOKEN_OFFSET (Token));
         break;
 
-    case PR_DIRECTIVE_LINE:
-        /* TBD: set line number -- or, do this in main compiler */
     default:
         /* Should never get here */
         DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID