diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index 4e36a222d6..a05b6f6793 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -905,7 +905,25 @@ struct target_stat64 {
 #define TARGET_F_SETLK64       13
 #define TARGET_F_SETLKW64      14
 
-#if defined (TARGET_PPC)
+#if defined (TARGET_ARM)
+#define TARGET_O_ACCMODE          0003
+#define TARGET_O_RDONLY             00
+#define TARGET_O_WRONLY             01
+#define TARGET_O_RDWR               02
+#define TARGET_O_CREAT            0100 /* not fcntl */
+#define TARGET_O_EXCL             0200 /* not fcntl */
+#define TARGET_O_NOCTTY           0400 /* not fcntl */
+#define TARGET_O_TRUNC           01000 /* not fcntl */
+#define TARGET_O_APPEND          02000
+#define TARGET_O_NONBLOCK        04000
+#define TARGET_O_NDELAY        O_NONBLOCK
+#define TARGET_O_SYNC           010000
+#define TARGET_FASYNC           020000 /* fcntl, for BSD compatibility */
+#define TARGET_O_DIRECTORY      040000 /* must be a directory */
+#define TARGET_O_NOFOLLOW      0100000 /* don't follow links */
+#define TARGET_O_DIRECT        0200000 /* direct disk access hint */
+#define TARGET_O_LARGEFILE     0400000
+#elif defined (TARGET_PPC)
 #define TARGET_O_ACCMODE          0003
 #define TARGET_O_RDONLY             00
 #define TARGET_O_WRONLY             01