[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/nptl/eintr.c b/ap/libc/glibc/glibc-2.23/nptl/eintr.c
new file mode 100644
index 0000000..7271d9b
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/nptl/eintr.c
@@ -0,0 +1,88 @@
+/* Copyright (C) 2003-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <pthread.h>
+#include <signal.h>
+#include <unistd.h>
+
+
+static int the_sig;
+
+
+static void
+eintr_handler (int sig)
+{
+ if (sig != the_sig)
+ {
+ write (STDOUT_FILENO, "eintr_handler: signal number wrong\n", 35);
+ _exit (1);
+ }
+ write (STDOUT_FILENO, ".", 1);
+}
+
+
+static void *
+eintr_source (void *arg)
+{
+ struct timespec ts = { .tv_sec = 0, .tv_nsec = 500000 };
+
+ if (arg == NULL)
+ {
+ sigset_t ss;
+ sigemptyset (&ss);
+ sigaddset (&ss, the_sig);
+ pthread_sigmask (SIG_BLOCK, &ss, NULL);
+ }
+
+ while (1)
+ {
+ if (arg != NULL)
+ pthread_kill (*(pthread_t *) arg, the_sig);
+ else
+ kill (getpid (), the_sig);
+
+ nanosleep (&ts, NULL);
+ }
+
+ /* NOTREACHED */
+ return NULL;
+}
+
+
+static void
+setup_eintr (int sig, pthread_t *thp)
+{
+ struct sigaction sa;
+ sigemptyset (&sa.sa_mask);
+ sa.sa_flags = 0;
+ sa.sa_handler = eintr_handler;
+ if (sigaction (sig, &sa, NULL) != 0)
+ {
+ puts ("setup_eintr: sigaction failed");
+ exit (1);
+ }
+ the_sig = sig;
+
+ /* Create the thread which will fire off the signals. */
+ pthread_t th;
+ if (pthread_create (&th, NULL, eintr_source, thp) != 0)
+ {
+ puts ("setup_eintr: pthread_create failed");
+ exit (1);
+ }
+}