From 24c21795ea12380b9594d37f34a30432b56a73c6 Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Mon, 23 Mar 2020 15:54:59 +0100
Subject: score: Fix size of TLS_Thread_control_block

On most architectures, the size of the thread-local storage TCB must be
8 bytes.  Fix the definition for 64-bit targets.
---
 cpukit/include/rtems/score/tls.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/cpukit/include/rtems/score/tls.h b/cpukit/include/rtems/score/tls.h
index 1b9dae11b1..bfe6ff3a6b 100644
--- a/cpukit/include/rtems/score/tls.h
+++ b/cpukit/include/rtems/score/tls.h
@@ -73,10 +73,12 @@ typedef struct {
 typedef struct TLS_Thread_control_block {
 #ifdef __i386__
   struct TLS_Thread_control_block *tcb;
-#else
+#else /* !__i386__ */
   TLS_Dynamic_thread_vector *dtv;
+#if CPU_SIZEOF_POINTER == 4
   uintptr_t reserved;
 #endif
+#endif /* __i386__ */
 } TLS_Thread_control_block;
 
 typedef struct {
-- 
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