score: Fix thread TLS area initialization

Do not use _TLS_Size here since this will lead GCC to assume that this
symbol is not 0 and the later > 0 test will be optimized away.

4 files changed, 92 insertions, 0 deletions

diff --git a/testsuites/sptests/sptls03/Makefile.am b/testsuites/sptests/sptls03/Makefile.am
new file mode 100644
index 0000000000..9d000ce6ae
--- /dev/null
+++ b/testsuites/sptests/sptls03/Makefile.am
@@ -0,0 +1,19 @@
+rtems_tests_PROGRAMS = sptls03
+sptls03_SOURCES = init.c
+
+dist_rtems_tests_DATA = sptls03.scn sptls03.doc
+
+include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
+include $(top_srcdir)/../automake/compile.am
+include $(top_srcdir)/../automake/leaf.am
+
+AM_CPPFLAGS += -I$(top_srcdir)/../support/include
+
+LINK_OBJS = $(sptls03_OBJECTS)
+LINK_LIBS = $(sptls03_LDLIBS)
+
+sptls03$(EXEEXT): $(sptls03_OBJECTS) $(sptls03_DEPENDENCIES)
+	@rm -f sptls03$(EXEEXT)
+	$(make-exe)
+
+include $(top_srcdir)/../automake/local.am
diff --git a/testsuites/sptests/sptls03/init.c b/testsuites/sptests/sptls03/init.c
new file mode 100644
index 0000000000..65a0393e24
--- /dev/null
+++ b/testsuites/sptests/sptls03/init.c
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.com/license/LICENSE.
+ */
+
+#ifdef HAVE_CONFIG_H
+  #include "config.h"
+#endif
+
+#include <rtems/score/thread.h>
+
+#include "tmacros.h"
+
+static volatile int read_write_small = 0xdeadbeef;
+
+static const volatile int read_only_small = 0x601dc0fe;
+
+static void test(void)
+{
+  Thread_Control *executing = _Thread_Get_executing();
+
+  rtems_test_assert(read_write_small == 0xdeadbeef);
+  rtems_test_assert(read_only_small == 0x601dc0fe);
+
+  rtems_test_assert(executing->Start.tls_area == NULL);
+}
+
+static void Init(rtems_task_argument arg)
+{
+  puts("\n\n*** TEST SPTLS 3 ***");
+
+  test();
+
+  puts("*** END OF TEST SPTLS 3 ***");
+
+  rtems_test_exit(0);
+}
+
+#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
+#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
+
+#define CONFIGURE_MAXIMUM_TASKS 1
+
+#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
+
+#define CONFIGURE_INIT
+
+#include <rtems/confdefs.h>
diff --git a/testsuites/sptests/sptls03/sptls03.doc b/testsuites/sptests/sptls03/sptls03.doc
new file mode 100644
index 0000000000..2b92bcd091
--- /dev/null
+++ b/testsuites/sptests/sptls03/sptls03.doc
@@ -0,0 +1,14 @@
+This file describes the directives and concepts tested by this test set.
+
+test set name: sptls03
+
+directives:
+
+  - _Thread_Initialize()
+
+concepts:
+
+  - Ensure that the thread-local storage (TLS) is not allocated if TLS is not
+    used.
+  - Ensure that the small-data variables are accessible.  On some architectures
+    like PowerPC the TLS ABI conflicts with other variants.
diff --git a/testsuites/sptests/sptls03/sptls03.scn b/testsuites/sptests/sptls03/sptls03.scn
new file mode 100644
index 0000000000..3e01a8f391
--- /dev/null
+++ b/testsuites/sptests/sptls03/sptls03.scn
@@ -0,0 +1,2 @@
+*** TEST SPTLS 3 ***
+*** END OF TEST SPTLS 3 ***