bugfix: exec执行的文件不存在时，自动退出进程。

kernel/exception/softirq.h

@@ -4,41 +4,61 @@
  * @brief 软中断
  * @version 0.1
  * @date 2022-04-08
- * 
+ *
  * @copyright Copyright (c) 2022
- * 
+ *
  */
 #pragma once
 
-#include<common/glib.h>
+#include <common/glib.h>
 
 #define MAX_SOFTIRQ_NUM 64
 
-#define TIMER_SIRQ (1<<0)   // 时钟软中断号
+#define TIMER_SIRQ 0         // 时钟软中断号
+#define VIDEO_REFRESH_SIRQ 1 // 帧缓冲区刷新软中断
 
-uint64_t softirq_status = 0;
+/**
+ * @brief 发起软中断
+ *
+ */
+#define raise_softirq(sirq_num)            \
+    do                                     \
+    {                                      \
+        set_softirq_status(1 << sirq_num); \
+    } while (0);
+
+/**
+ * @brief 清除软中断标志位（需要软中断处理程序手动调用）
+ * 
+ */
+#define softirq_ack(sirq_num)        \
+    do                                 \
+    {                                  \
+        softirq_status &= (~(1 << sirq_num)); \
+    } while (0);
+
+extern uint64_t softirq_status;
 
 struct softirq_t
 {
-    void (*action)(void* data); // 软中断处理函数
-    void* data;
+    void (*action)(void *data); // 软中断处理函数
+    void *data;
 };
 
 struct softirq_t softirq_vector[MAX_SOFTIRQ_NUM] = {0};
 
-
 /**
  * @brief 软中断注册函数
- * 
+ *
  * @param irq_num 软中断号
  * @param action 响应函数
  * @param data 响应数据结构体
  */
-void register_softirq(uint32_t irq_num, void (*action)(void * data), void* data);
+void register_softirq(uint32_t irq_num, void (*action)(void *data), void *data);
 
 /**
  * @brief 卸载软中断
- * 
+ *
  * @param irq_num 软中断号
  */
 void unregister_softirq(uint32_t irq_num);
@@ -48,9 +68,8 @@ uint64_t get_softirq_status();
 
 /**
  * @brief 软中断处理程序
- * 
+ *
  */
 void do_softirq();
 
-
 void softirq_init();