test: Add Thread Local Storage test

Author: fwsGonzo

test/kernel/integration/tls/CMakeLists.txt

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+cmake_minimum_required(VERSION 2.8.9)
+
+# IncludeOS install location
+if (NOT DEFINED ENV{INCLUDEOS_PREFIX})
+  set(ENV{INCLUDEOS_PREFIX} /usr/local)
+endif()
+include($ENV{INCLUDEOS_PREFIX}/includeos/pre.service.cmake)
+project (service)
+
+# Human-readable name of your service
+set(SERVICE_NAME "Thread Local Storage test")
+
+# Name of your service binary
+set(BINARY       "service")
+
+# Source files to be linked with OS library parts to form bootable image
+set(SOURCES
+  service.cpp # ...add more here
+  )
+
+set(DRIVERS
+  )
+
+set(PLUGINS
+  # syslogd    # Syslog over UDP
+  # ...others
+  )
+
+# include service build script
+include($ENV{INCLUDEOS_PREFIX}/includeos/post.service.cmake)

test/kernel/integration/tls/README.md

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+### SMP
+
+```
+mkdir build
+cd build
+cmake ..
+make
+../run.sh smp_example
+```

test/kernel/integration/tls/service.cpp

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+// This file is a part of the IncludeOS unikernel - www.includeos.org
+//
+// Copyright 2015 Oslo and Akershus University College of Applied Sciences
+// and Alfred Bratterud
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <service>
+#include <cassert>
+
+// TBSS area
+thread_local int test_int = 0;
+thread_local char test_char = 0;
+// TDATA area
+thread_local char test_array[3] = {1, 2, 3};
+thread_local int64_t test_i64 = 0x11ABCDEF22ABCDEF;
+
+void Service::start()
+{
+  int bss_local = 0;
+  int data_local = 1;
+  // TBSS area
+  assert(test_int == 0);
+  assert(test_char == 0);
+  // modify TBSS
+  test_int = 1;
+  assert(test_int == 1);
+  // TDATA area
+  assert(test_array[0] == 1);
+  assert(test_array[1] == 2);
+  assert(test_array[2] == 3);
+  assert(test_i64 == 0x11ABCDEF22ABCDEF);
+  // modify TDATA area
+  test_array[0] = 44;
+  assert(test_array[0] == 44);
+  assert(test_array[1] == 2);
+  assert(test_array[2] == 3);
+  // verify locals
+  assert(bss_local == 0);
+  assert(data_local == 1);
+  printf("SUCCESS\n");
+}

test/kernel/integration/tls/test.py

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+#! /usr/bin/env python
+import sys
+import os
+
+includeos_src = os.environ.get('INCLUDEOS_SRC',
+                               os.path.realpath(os.path.join(os.getcwd(), os.path.dirname(__file__))).split('/test')[0])
+sys.path.insert(0,includeos_src)
+
+from vmrunner import vmrunner
+vm = vmrunner.vms[0];
+vm.cmake().boot(20).clean()

test/kernel/integration/tls/vm.json

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+{
+  "mem" : 32
+}