[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/include/signal.h b/ap/libc/glibc/glibc-2.23/include/signal.h
new file mode 100644
index 0000000..276a99d
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/include/signal.h
@@ -0,0 +1,71 @@
+#ifndef _SIGNAL_H
+#if defined __need_sig_atomic_t || defined __need_sigset_t
+# include <signal/signal.h>
+#else
+# include <signal/signal.h>
+
+# ifndef _ISOMAC
+libc_hidden_proto (sigemptyset)
+libc_hidden_proto (sigfillset)
+libc_hidden_proto (sigaddset)
+libc_hidden_proto (sigdelset)
+libc_hidden_proto (sigismember)
+extern int __sigpause (int sig_or_mask, int is_sig);
+libc_hidden_proto (__sigpause)
+libc_hidden_proto (raise)
+libc_hidden_proto (__libc_current_sigrtmin)
+libc_hidden_proto (__libc_current_sigrtmax)
+libc_hidden_proto (_sys_siglist)
+
+/* Now define the internal interfaces. */
+extern __sighandler_t __bsd_signal (int __sig, __sighandler_t __handler);
+extern int __kill (__pid_t __pid, int __sig);
+extern int __sigaction (int __sig, const struct sigaction *__restrict __act,
+ struct sigaction *__restrict __oact);
+libc_hidden_proto (__sigaction)
+extern int __sigblock (int __mask);
+extern int __sigsetmask (int __mask);
+extern int __sigprocmask (int __how,
+ const sigset_t *__set, sigset_t *__oset);
+extern int __sigsuspend (const sigset_t *__set);
+libc_hidden_proto (__sigsuspend)
+#ifndef NO_CANCELLATION
+extern int __sigsuspend_nocancel (const sigset_t *__set) attribute_hidden;
+#endif
+extern int __sigwait (const sigset_t *__set, int *__sig);
+libc_hidden_proto (__sigwait)
+extern int __sigwaitinfo (const sigset_t *__set, siginfo_t *__info);
+libc_hidden_proto (__sigwaitinfo)
+extern int __sigtimedwait (const sigset_t *__set, siginfo_t *__info,
+ const struct timespec *__timeout);
+libc_hidden_proto (__sigtimedwait)
+extern int __sigqueue (__pid_t __pid, int __sig,
+ const union sigval __val);
+#ifdef __USE_MISC
+extern int __sigreturn (struct sigcontext *__scp);
+#endif
+extern int __sigaltstack (const struct sigaltstack *__ss,
+ struct sigaltstack *__oss);
+extern int __libc_sigaction (int sig, const struct sigaction *act,
+ struct sigaction *oact);
+libc_hidden_proto (__libc_sigaction)
+
+extern int __default_sigpause (int mask);
+extern int __xpg_sigpause (int sig);
+
+/* Simplified sigemptyset() implementation without the parameter checking. */
+#undef __sigemptyset
+#define __sigemptyset(ss) \
+ ({ __builtin_memset (ss, '\0', sizeof (sigset_t)); 0; })
+
+
+/* Allocate real-time signal with highest/lowest available priority. */
+extern int __libc_allocate_rtsig (int __high);
+
+# if IS_IN (rtld)
+extern __typeof (__sigaction) __sigaction attribute_hidden;
+extern __typeof (__libc_sigaction) __libc_sigaction attribute_hidden;
+# endif
+# endif
+#endif
+#endif