增加了uart输出的条件编译

kernel/common/printk.c

@@ -29,7 +29,7 @@ int printk_init(const int char_size_x, const int char_size_y)
 {
     struct multiboot_tag_framebuffer_info_t info;
     int reserved;
-    
+
     multiboot2_iter(multiboot2_get_Framebuffer_info, &info, &reserved);
 
     pos.width = info.framebuffer_width;
@@ -112,16 +112,20 @@ void auto_newline()
      * @brief 超过每行最大字符数，自动换行
      *
      */
-     
+
     if (pos.x > pos.max_x)
     {
-        uart_send(COM1, '\n'); 
+#ifdef DEBUG
+        uart_send(COM1, '\n');
+#endif
         pos.x = 0;
         ++pos.y;
     }
     if (pos.y > pos.max_y)
     {
+#ifdef DEBUG
         uart_send(COM1, '\n');
+#endif
         pos.y = pos.max_y;
         int lines_to_scroll = 1;
         scroll(true, lines_to_scroll * pos.char_size_y, false);
@@ -630,8 +634,10 @@ static void putchar(uint *fb, int Xsize, int x, int y, unsigned int FRcolor, uns
      * @param BKcolor 背景颜色
      * @param font 字符的bitmap
      */
-    // 输出到串口
+
+#ifdef DEBUG
     uart_send(COM1, font);
+#endif
 
     unsigned char *font_ptr = font_ascii[font];
     unsigned int *addr;