[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/posix/tst-mmap-offset.c b/ap/libc/glibc/glibc-2.23/posix/tst-mmap-offset.c
new file mode 100644
index 0000000..53e7855
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/posix/tst-mmap-offset.c
@@ -0,0 +1,67 @@
+/* BZ #18877 mmap offset test.
+
+ Copyright (C) 2015-2016 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+static int
+printmsg (int rc, const char *msg)
+{
+ printf ("%s failed: %m\n", msg);
+ return rc;
+}
+
+/* Check if negative offsets are handled correctly by mmap. */
+static int
+do_test (void)
+{
+ const int prot = PROT_READ | PROT_WRITE;
+ const int flags = MAP_SHARED;
+ const unsigned long length = 0x10000;
+ const unsigned long offset = 0xace00000;
+ const unsigned long size = offset + length;
+ void *addr;
+ int fd;
+ char fname[] = "tst-mmap-offset-XXXXXX";
+
+ fd = mkstemp64 (fname);
+ if (fd < 0)
+ return printmsg (1, "mkstemp");
+
+ if (unlink (fname))
+ return printmsg (1, "unlink");
+
+ if (ftruncate64 (fd, size))
+ return printmsg (0, "ftruncate64");
+
+ addr = mmap (NULL, length, prot, flags, fd, offset);
+ if (MAP_FAILED == addr)
+ return printmsg (1, "mmap");
+
+ /* This memcpy is likely to SIGBUS if mmap has messed up with offset. */
+ memcpy (addr, fname, sizeof (fname));
+
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"