[chore] EVERYTHING!

include/common.h

@@ -1,6 +1,8 @@
 #pragma once
 
-unsigned int strlen(char* arr) {
+#define ASM asm volatile
+
+static unsigned int strlen(const char* arr) { // 获取string长度
     int i = 0;
     while (arr[i++] != '\0');
     return i - 1;