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-rw-r--r--sysdeps/s390/nptl/tls.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/s390/nptl/tls.h b/sysdeps/s390/nptl/tls.h
index bc86931d81..e4c3ec7830 100644
--- a/sysdeps/s390/nptl/tls.h
+++ b/sysdeps/s390/nptl/tls.h
@@ -53,7 +53,11 @@ typedef struct
   int gscope_flag;
 #ifndef __ASSUME_PRIVATE_FUTEX
   int private_futex;
+#else
+  int __glibc_reserved1;
 #endif
+  /* GCC split stack support.  */
+  void *__private_ss;
 } tcbhead_t;
 
 # ifndef __s390x__