first stange of asn1 table driven compiler

lib/asn1/gen_glue.c

@@ -3,6 +3,8 @@
  * (Royal Institute of Technology, Stockholm, Sweden).
  * All rights reserved.
  *
+ * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ -70,7 +72,8 @@ generate_int2 (const Type *t, const char *gen_name)
     fprintf (codefile,
 	     "%s int2%s(unsigned n)\n"
 	     "{\n"
-	     "\t%s flags;\n\n",
+	     "\t%s flags;\n\n"
+	     "\tmemset(&flags, 0, sizeof(flags));\n\n",
 	     gen_name, gen_name, gen_name);
 
     if(t->members) {
@@ -92,9 +95,17 @@ generate_units (const Type *t, const char *gen_name)
 {
     Member *m;
 
-    fprintf (headerfile,
-	     "const struct units * asn1_%s_units(void);",
-	     gen_name);
+    if (template_flag) {
+	fprintf (headerfile,
+		 "extern const struct units *asn1_%s_table_units;\n",
+		 gen_name);
+	fprintf (headerfile, "#define asn1_%s_units() (asn1_%s_table_units)\n",
+		 gen_name, gen_name);
+    } else {
+	fprintf (headerfile,
+		 "const struct units * asn1_%s_units(void);",
+		 gen_name);
+    }
 
     fprintf (codefile,
 	     "static struct units %s_units[] = {\n",
@@ -111,11 +122,16 @@ generate_units (const Type *t, const char *gen_name)
 	     "\t{NULL,\t0}\n"
 	     "};\n\n");
 
-    fprintf (codefile,
-	     "const struct units * asn1_%s_units(void){\n"
-	     "return %s_units;\n"
-	     "}\n\n",
-	     gen_name, gen_name);
+    if (template_flag)
+	fprintf (codefile,
+		 "const struct units * asn1_%s_table_units = %s_units;\n",
+		 gen_name, gen_name);
+    else
+	fprintf (codefile,
+		 "const struct units * asn1_%s_units(void){\n"
+		 "return %s_units;\n"
+		 "}\n\n",
+		 gen_name, gen_name);
 
 
 }