新增4轮4转-补丁代码

e3_176_ref-补丁/prebuilts/gcc/arm-none-eabi/include/signal.h

@@ -0,0 +1,35 @@
+#ifndef _SIGNAL_H_
+#define _SIGNAL_H_
+
+#include "_ansi.h"
+#include <sys/cdefs.h>
+#include <sys/signal.h>
+
+_BEGIN_STD_C
+
+typedef int	sig_atomic_t;		/* Atomic entity type (ANSI) */
+#if __BSD_VISIBLE
+typedef _sig_func_ptr sig_t;		/* BSD naming */
+#endif
+#if __GNU_VISIBLE
+typedef _sig_func_ptr sighandler_t;	/* glibc naming */
+#endif
+
+#define SIG_DFL ((_sig_func_ptr)0)	/* Default action */
+#define SIG_IGN ((_sig_func_ptr)1)	/* Ignore action */
+#define SIG_ERR ((_sig_func_ptr)-1)	/* Error return */
+
+struct _reent;
+
+_sig_func_ptr _signal_r (struct _reent *, int, _sig_func_ptr);
+int	_raise_r (struct _reent *, int);
+
+#ifndef _REENT_ONLY
+_sig_func_ptr signal (int, _sig_func_ptr);
+int	raise (int);
+void	psignal (int, const char *);
+#endif
+
+_END_STD_C
+
+#endif /* _SIGNAL_H_ */