--- /dev/null
+#ifndef __ASM_GENERIC_SIGNAL_H
+#define __ASM_GENERIC_SIGNAL_H
+
+#include <lwk/compiler.h>
+
+#ifndef SIG_BLOCK
+#define SIG_BLOCK 0 /* for blocking signals */
+#endif
+#ifndef SIG_UNBLOCK
+#define SIG_UNBLOCK 1 /* for unblocking signals */
+#endif
+#ifndef SIG_SETMASK
+#define SIG_SETMASK 2 /* for setting the signal mask */
+#endif
+
+#ifndef __ASSEMBLY__
+typedef void __signalfn_t(int);
+typedef __signalfn_t __user *__sighandler_t;
+
+typedef void __restorefn_t(void);
+typedef __restorefn_t __user *__sigrestore_t;
+
+#define SIG_DFL ((__force __sighandler_t)0) /* default signal handling */
+#define SIG_IGN ((__force __sighandler_t)1) /* ignore signal */
+#define SIG_ERR ((__force __sighandler_t)-1) /* error return from signal */
+#endif
+
+#endif /* __ASM_GENERIC_SIGNAL_H */