Use a string pool to reduce the memory footprint

git-svn-id: svn://svn.cc65.org/cc65/trunk@2197 b7a2c559-68d2-44c3-8de9-860c34a00d81

src/ld65/fragment.h

@@ -50,6 +50,7 @@
 
 
 struct LineInfo;
+struct ObjData;
 struct Section;
 
 
@@ -61,9 +62,9 @@ struct Section;
 
 
 /* Fragment check expression */
-typedef struct CheckExpr CheckExpr;
-struct CheckExpr {
-    struct CheckExpr*   Next;           /* Next check expression */
+typedef struct FragCheck FragCheck;
+struct FragCheck {
+    struct FragCheck*   Next;           /* Next check expression */
     struct ExprNode*    Expr;           /* The expression itself */
     unsigned            Action;         /* Action to take if the check fails */
     unsigned            Message;        /* Message number */
@@ -76,9 +77,9 @@ struct Fragment {
     struct ObjData*	Obj;		/* Source of fragment */
     unsigned            Size;  		/* Size of data/expression */
     struct ExprNode*	Expr;		/* Expression if FRAG_EXPR */
-    FilePos  		Pos;		/* File position in source */
+    FilePos  	 	Pos;		/* File position in source */
     struct LineInfo*    LI;             /* Additional line info */
-    CheckExpr*          Check;          /* Single linked list of expressions */
+    FragCheck*          Check;          /* Single linked list of checks */
     unsigned char    	Type;  		/* Type of fragment */
     unsigned char      	LitBuf [1]; 	/* Dynamically alloc'ed literal buffer */
 };
@@ -91,6 +92,9 @@ struct Fragment {
 
 
 
+FragCheck* ReadFragCheck (FILE* F, Fragment* Frag);
+/* Read a fragment check expression from the given file */
+
 Fragment* NewFragment (unsigned char Type, unsigned Size, struct Section* S);
 /* Create a new fragment and insert it into the section S */