Added system calls for non-preemptable sections.

	int enter_np(void);
	int exit_np(void);

2 files changed, 6 insertions, 1 deletions

diff --git a/litmus.c b/litmus.c
index e4958ce..665ae64 100644
--- a/litmus.c
+++ b/litmus.c
@@ -177,6 +177,8 @@ task_class_t str2class(const char* str)
 #define __NR_reset_stat         326
 #define __NR_sleep_next_period  327
 #define __NR_scheduler_setup    328
+#define __NR_enter_np           329
+#define __NR_exit_np            330
 
 
 /*      Syscall stub for setting RT mode and scheduling options */
@@ -189,3 +191,5 @@ _syscall1(int, 	   prepare_rt_task,   pid_t,   pid);
 _syscall0(int,     reset_stat);
 _syscall0(int,     sleep_next_period);
 _syscall2(int,     scheduler_setup,   int,     cmd,  void*,      param);
+_syscall0(int,     enter_np);
+_syscall0(int,     exit_np);
diff --git a/litmus.h b/litmus.h
index e5d70be..8b0b88d 100644
--- a/litmus.h
+++ b/litmus.h
@@ -67,7 +67,8 @@ int tear_down_task(pid_t pid, int sig);
 int reset_stat(void);
 int sleep_next_period(void);
 int scheduler_setup(int cmd, void* param);
-
+int enter_np(void);
+int exit_np(void);
 
 /*  library functions */
 int create_rt_task(rt_fn_t rt_prog, void *arg, int cpu, int wcet, int period);