Implemented do_syscall()

Wrote constructor for kernel state
Added syscall table

include/kernel.h

@@ -5,13 +5,19 @@
 #include "resource.h"
 #include "module.h"
 #include "process.h"
+#include "memorymap.h"
 #include <stddef.h>
 
 enum syscall_id_t
 {
-    SYSCALL_YIELD = 1
+    SYSCALL_TEST = 1,
+    SYSCALL_YIELD,
+    SYSCALL_MMAP,
+    SYSCALL_MUNMAP
 };
 
+typedef size_t (*syscall_t)(struct kernel_t*, size_t, size_t, size_t);
+
 struct kernel_t
 {
     struct page_stack_t *page_stack;
@@ -20,8 +26,14 @@ struct kernel_t
     struct resource_table_t *resource_table;
 };
 
+extern syscall_t syscall_table[32];
+
 extern struct kernel_t kernel_state;
 
+void construct_kernel_state(struct kernel_t *kernel, struct page_stack_t *page_stack, 
+    struct priority_queue_t *priority_queue, struct resource_table_t *resource_table,
+    size_t module_count, struct module_t *module_list);
+
 size_t do_syscall(struct kernel_t *kernel, enum syscall_id_t id, size_t arg1, size_t arg2, size_t arg3);
 
 int load_module(struct kernel_t *kernel, struct module_t *module);