create userland tests

Fix some more tabs.

Parse the "Simulated exit code not 0!" string in gem5 and exit with the proper status

gem5-shell

@@ -1,17 +1,23 @@
 #!/usr/bin/env python3
 
-import sys
-
 import common
 from shell_helpers import LF
 
-parser = self.get_argparse(
-    default_args={'gem5':True},
-    argparse_args={'description':'Connect a terminal to a running gem5 instance'}
-)
-args = self.setup(parser)
-sys.exit(self.sh.run_cmd([
-    kwargs['gem5_m5term'], LF,
-    'localhost', LF,
-    str(kwargs['gem5_telnet_port']), LF,
-]))
+class Main(common.LkmcCliFunction):
+    def __init__(self):
+        super().__init__(
+            defaults={
+                'gem5': True,
+            },
+            description='Connect a terminal to a running gem5 instance',
+        )
+    def timed_main(self):
+        return self.sh.run_cmd([
+            self.env['gem5_m5term'],
+            'localhost',
+            str(self.env['gem5_telnet_port']),
+            LF,
+        ])
+
+if __name__ == '__main__':
+    Main().cli_exit()