cleaned up ecall code, moved debug statements into a debug check, removed trailing spaces

kinclude/ecall.c

@@ -78,14 +78,16 @@ optional_int ecall_handle_exit(int* args, ProcessControlBlock* pcb)
     pcb->status = PROC_DEAD;
     pcb->exit_code = *args;
 
+    if (DEBUGGING) {
         dbgln("exit", 4);
 
         char msg[34] = "process    exited with code   ";
 
         itoa(pcb->pid, &msg[8], 10);
-    itoa(*args % 10, &msg[28], 10);
+        itoa(*args, &msg[28], 10);
 
         dbgln(msg, 34);
+    }
 
     // recursively kill all child processes
     kill_child_processes(pcb);
@@ -95,7 +97,8 @@ optional_int ecall_handle_exit(int* args, ProcessControlBlock* pcb)
 
 #pragma GCC diagnostic pop
 
-void trap_handle_ecall() { 
+void trap_handle_ecall()
+{
     mark_ecall_entry();
     ProcessControlBlock* pcb = get_current_process();
     int *regs = pcb->regs;

kinclude/ecall.h

@@ -3,9 +3,8 @@
 
 #include "sched.h"
 
-/* ecall codes are defined here
- *
- *
+/*
+ * Maps ecall names to numbers
  */
 enum ecall_codes {
     ECALL_SPAWN = 1,