compiled newlib, need to hook up the system calls

kernel/gdt.c

@@ -129,6 +129,7 @@ void init_gdt() {
     for (uint32_t i = 0; i < sizeof(tss_entry); i++) {
         ((char*)&tss)[i] = 0;
     }
+
     tss.ss0 = 0x10;
     tss.iomap_base = sizeof(tss_entry);
 
@@ -136,6 +137,7 @@ void init_gdt() {
 
     gdtr.limit = 6 * sizeof(uint64_t) - 1;
     gdtr.base = (uint32_t)&gdt;
+    
     load_gdt();
     tss_flush();
 }