tasking: implement task_kill function, thanks deepseek

include/paging.h

@@ -41,6 +41,10 @@ uint32_t phys_to_virt(uint32_t phys);
 uint32_t* create_page_dir();
 void destroy_page_dir(uint32_t* page_dir);
 
+static inline uint32_t virt_to_phys(void* virt) {
+    return (uint32_t)virt - 0xC0000000;
+}
+
 //page_alloc.c
 void set_bit(uint32_t page_index);
 void clear_bit(uint32_t page_index);

include/task.h

@@ -63,13 +63,14 @@ typedef struct Process
     struct Process* next;      // Следующий процесс
 
     file_t* file_descriptors[MAX_OPEN_FILES];
+    uint8_t zombie;
 } Process;
 
 extern Process* current;
 
 Process* task_create(uint32_t func, uint32_t user_esp, uint32_t ring, uint32_t* pagedir);
-void     task_kill(Process* proc);
-void     task_exit();
+
+void task_kill(Process* proc);
 
 void     scheduler_init();
 void     schedule();