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Diffstat (limited to 'cpukit/score/cpu/m68k/__m68k_read_tp.c')
-rw-r--r--cpukit/score/cpu/m68k/__m68k_read_tp.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/cpukit/score/cpu/m68k/__m68k_read_tp.c b/cpukit/score/cpu/m68k/__m68k_read_tp.c
new file mode 100644
index 0000000000..3e024a84b3
--- /dev/null
+++ b/cpukit/score/cpu/m68k/__m68k_read_tp.c
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH. All rights reserved.
+ *
+ * embedded brains GmbH
+ * Obere Lagerstr. 30
+ * 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 <rtems/score/tls.h>
+
+void __m68k_read_tp(void);
+
+void __m68k_read_tp(void)
+{
+ const Thread_Control *executing = _Thread_Get_executing();
+ void *tp = (char *) executing->Start.tls_area +
+ _TLS_Get_thread_control_block_area_size((uintptr_t) _TLS_Alignment)
+ + 0x7000;
+
+ __asm__ volatile (
+ "move.l %0, %%a0"
+ :
+ : "d" (tp)
+ );
+}