[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/sysdeps/generic/dl-osinfo.h b/ap/libc/glibc/glibc-2.23/sysdeps/generic/dl-osinfo.h
new file mode 100644
index 0000000..2489e7b
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/sysdeps/generic/dl-osinfo.h
@@ -0,0 +1,59 @@
+/* Operating system specific code for generic dynamic loader functions.
+ Copyright (C) 2009-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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 <endian.h>
+#include <stdint.h>
+
+static inline uintptr_t __attribute__ ((always_inline))
+_dl_setup_stack_chk_guard (void *dl_random)
+{
+ union
+ {
+ uintptr_t num;
+ unsigned char bytes[sizeof (uintptr_t)];
+ } ret = { 0 };
+
+ if (dl_random == NULL)
+ {
+ ret.bytes[sizeof (ret) - 1] = 255;
+ ret.bytes[sizeof (ret) - 2] = '\n';
+ }
+ else
+ {
+ memcpy (ret.bytes, dl_random, sizeof (ret));
+#if BYTE_ORDER == LITTLE_ENDIAN
+ ret.num &= ~(uintptr_t) 0xff;
+#elif BYTE_ORDER == BIG_ENDIAN
+ ret.num &= ~((uintptr_t) 0xff << (8 * (sizeof (ret) - 1)));
+#else
+# error "BYTE_ORDER unknown"
+#endif
+ }
+ return ret.num;
+}
+
+static inline uintptr_t __attribute__ ((always_inline))
+_dl_setup_pointer_guard (void *dl_random, uintptr_t stack_chk_guard)
+{
+ uintptr_t ret;
+ if (dl_random == NULL)
+ ret = stack_chk_guard;
+ else
+ memcpy (&ret, (char *) dl_random + sizeof (ret), sizeof (ret));
+ return ret;
+}