Allow to define symbols in the linker config

git-svn-id: svn://svn.cc65.org/cc65/trunk@620 b7a2c559-68d2-44c3-8de9-860c34a00d81

src/ld65/config.c

@@ -1138,6 +1138,36 @@ static void ParseFeatures (void)
 
 
 
+static void ParseSymbols (void)
+/* Parse a symbols section */
+{
+    while (CfgTok == CFGTOK_IDENT) {
+
+	long Val;
+
+	/* Remember the name */
+	char Name [sizeof (CfgSVal)];
+	strcpy (Name, CfgSVal);
+	CfgNextTok ();
+
+	/* Allow an optional assignment */
+	CfgOptionalAssign ();
+
+	/* Make sure the next token is an integer, read and skip it */
+	CfgAssureInt ();
+	Val = CfgIVal;
+	CfgNextTok ();
+
+	/* Generate an export with the given value */
+	CreateConstExport (Name, Val);
+
+	/* Skip the semicolon */
+	CfgConsumeSemi ();
+    }
+}
+
+
+
 static void ParseConfig (void)
 /* Parse the config file */
 {
@@ -1147,6 +1177,7 @@ static void ParseConfig (void)
         {   "SEGMENTS", CFGTOK_SEGMENTS },
 	{   "FORMATS", 	CFGTOK_FORMATS  },
 	{   "FEATURES", CFGTOK_FEATURES	},
+	{   "SYMBOLS",	CFGTOK_SYMBOLS 	},
     };
     cfgtok_t BlockTok;
 
@@ -1183,6 +1214,10 @@ static void ParseConfig (void)
 		ParseFeatures ();
 		break;
 
+	    case CFGTOK_SYMBOLS:
+		ParseSymbols ();
+		break;
+
 	    default:
 	     	FAIL ("Unexpected block token");
 

src/ld65/scanner.h

@@ -65,6 +65,7 @@ typedef enum {
     CFGTOK_SEGMENTS,
     CFGTOK_FORMATS,
     CFGTOK_FEATURES,
+    CFGTOK_SYMBOLS,
 
     CFGTOK_START,
     CFGTOK_SIZE,

src/ld65/segments.c

@@ -230,7 +230,7 @@ Section* ReadSection (FILE* F, ObjData* O)
     Type = Read8 (F);
 
     /* Print some data */
-    Print (stdout, 1, "Module `%s': Found segment `%s', size = %lu, align = %u, type = %u\n",
+    Print (stdout, 2, "Module `%s': Found segment `%s', size = %lu, align = %u, type = %u\n",
 	   GetObjFileName (O), Name, Size, Align, Type);
 
     /* Get the segment for this section */