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Diffstat (limited to 'nptl/sysdeps/s390/tls.h')
-rw-r--r--nptl/sysdeps/s390/tls.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/nptl/sysdeps/s390/tls.h b/nptl/sysdeps/s390/tls.h
index 3be459e32c..2b38ed4e7d 100644
--- a/nptl/sysdeps/s390/tls.h
+++ b/nptl/sysdeps/s390/tls.h
@@ -161,7 +161,12 @@ typedef struct
 
 /* Set the stack guard field in TCB head.  */
 #define THREAD_SET_STACK_GUARD(value) \
-  THREAD_SETMEM (THREAD_SELF, header.stack_guard, value)
+  do 									      \
+   {									      \
+     __asm __volatile ("" : : : "a0", "a1");				      \
+     THREAD_SETMEM (THREAD_SELF, header.stack_guard, value);		      \
+   }									      \
+  while (0)
 #define THREAD_COPY_STACK_GUARD(descr) \
   ((descr)->header.stack_guard						      \
    = THREAD_GETMEM (THREAD_SELF, header.stack_guard))