Add some DEBUG_DISABLE checks

Author: totalspectrum

backends/brkdebug.c

@@ -161,7 +161,12 @@ int AsmDebug_CodeGen(AST *ast, BackendDebugEval evalFunc, void *evalArg) {
     AST *exprbase;
     int regNum = 0;
     bool do_cogn = false;
-    
+
+    /* check for DEBUG_DISABLE */
+    if (const_or_default(current, "DEBUG_DISABLE", 0) != 0) {
+        return -1;
+    }
+    /* sanity check on codes */
     if (brkCode >= MAX_BRK) {
         ERROR(ast,"MAX_BRK exceeded!");
         return -1;
@@ -329,16 +334,6 @@ static void patch_long(char *where,int32_t val) {
     *where++ = (val>>24)&255;
 }
 
-static int32_t const_or_default(Module *M,const char *name,int32_t defaultval) {
-    Symbol *sym = FindSymbol(&M->objsyms,name);
-    if (sym && sym->kind == SYM_CONSTANT) {
-        return EvalConstExpr((AST *)sym->v.ptr);
-    } else {
-        return defaultval;
-    }
-}
-
-
 
 Flexbuf CompileBrkDebugger(size_t appsize) {
     Flexbuf f;

expr.c

@@ -4137,3 +4137,11 @@ AST *DerefType(AST *typ) {
     return typ;
 }
 
+int32_t const_or_default(Module *M, const char *name, int32_t defaultval) {
+    Symbol *sym = FindSymbol(&M->objsyms,name);
+    if (sym && sym->kind == SYM_CONSTANT) {
+        return EvalConstExpr((AST *)sym->v.ptr);
+    } else {
+        return defaultval;
+    }
+}

expr.h

@@ -186,6 +186,9 @@ AST *BuildExprlistFromObject(AST *expr, AST *typ);
 // handles designators like .x = n, and adds any missing 0's
 AST *FixupInitList(AST *typ, AST *initval);
 
+/* get a const value as either a constant or a default value */
+int32_t const_or_default(Module *M, const char *name, int32_t defaultval);
+
 /* type name */
 const char *TypeName(AST *typ);
 

frontends/printdebug.c

@@ -130,7 +130,10 @@ CreatePrintfDebug(AST *exprlist)
     struct flexbuf fb;
     const char *fmtstr;
     int needcomma = 0;
-    
+
+    if (0 != const_or_default(current, "DEBUG_DISABLE", 0)) {
+        return NULL;
+    }
     flexbuf_init(&fb, 1024);
 
     if (exprlist && exprlist->left && exprlist->left->kind == AST_LABEL) {