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-rw-r--r--sysdeps/unix/sysv/linux/s390/bits/mman.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/bits/mman.h b/sysdeps/unix/sysv/linux/s390/bits/mman.h
index fd52e0706d..ac94bb20b2 100644
--- a/sysdeps/unix/sysv/linux/s390/bits/mman.h
+++ b/sysdeps/unix/sysv/linux/s390/bits/mman.h
@@ -34,6 +34,10 @@
 #define PROT_WRITE	0x2		/* Page can be written.  */
 #define PROT_EXEC	0x4		/* Page can be executed.  */
 #define PROT_NONE	0x0		/* Page can not be accessed.  */
+#define PROT_GROWSDOWN	0x01000000	/* Extend change to start of
+					   growsdown vma (mprotect only).  */
+#define PROT_GROWSUP	0x02000000	/* Extend change to start of
+					   growsup vma (mprotect only).  */
 
 /* Sharing types (must choose one and only one of these).  */
 #define MAP_SHARED	0x01		/* Share changes.  */