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-rw-r--r--tools/schedsim/shell/shared/main_taskmode.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/schedsim/shell/shared/main_taskmode.c b/tools/schedsim/shell/shared/main_taskmode.c
index b3517d99d3..7b9c2638d8 100644
--- a/tools/schedsim/shell/shared/main_taskmode.c
+++ b/tools/schedsim/shell/shared/main_taskmode.c
@@ -52,6 +52,8 @@ int rtems_shell_main_task_mode(
struct getopt_data getopt_reent;
char option;
+ CHECK_RTEMS_IS_UP();
+
mode = 0;
mask = 0;
memset(&getopt_reent, 0, sizeof(getopt_data));