gutted ctr0 to let drt0 do the work instead.

newlib-files/crt0.c

@@ -1,49 +1,6 @@
 
-extern int main(int argc, char **argv, char **environ);
+extern int main(); //int argc, char **argv, char **environ);
 
-extern char __bss_start, _end; // BSS should be the last thing before _end
-
-// XXX: environment
-char *__env[1] = { 0 };
-char **environ = __env;
-
-void _start(){
-	asm("popq %rdi; popq %rsi; callq start;");
-}
-
-void start(unsigned long long len, char* args){
-	int substrings = 1, i = 0;
-	char* tmp = args;
-
-	// find the number of arguments
-	while((*tmp) != '\0'){
-		if(*tmp == ' '){substrings++;}
-		tmp++;
-	}
-
-	// this will become argv, its allocated on the stack
-	char* argv[substrings];
-
-	// build argv and turn spaces into terminators
-	tmp = args;
-	argv[0] = args;
-
-	while((*tmp) != '\0'){
-		if(*tmp == ' '){
-			i++;
-			*tmp = '\0';
-			tmp++;
-			argv[i] = tmp;
-		}else{
-			tmp++;
-		}
-	}
-
-	// zero BSS
-  for(tmp = &__bss_start; tmp < &_end; tmp++){
-    *tmp = 0; 
-  } 
-
-
-  exit(main(substrings,&argv[0], __env));
+int _Dmain(){
+	return main();
 }