[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/libc/glibc/glibc-2.22/sysdeps/mach/msync.c b/ap/libc/glibc/glibc-2.22/sysdeps/mach/msync.c
new file mode 100644
index 0000000..5d35522
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.22/sysdeps/mach/msync.c
@@ -0,0 +1,56 @@
+/* msync -- Synchronize mapped memory to external storage. Mach version.
+ Copyright (C) 2002-2015 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 <sys/types.h>
+#include <sys/mman.h>
+#include <errno.h>
+#include <mach.h>
+
+/* Some Mach variants have vm_msync and some don't. Those that have it
+ define the VM_SYNC_* bits when we include <mach/mach_types.h>. */
+
+#ifndef VM_SYNC_SYNCHRONOUS
+# include <misc/msync.c>
+#else
+
+/* Synchronize the region starting at ADDR and extending LEN bytes with the
+ file it maps. Filesystem operations on a file being mapped are
+ unpredictable before this is done. */
+
+int
+msync (__ptr_t addr, size_t len, int flags)
+{
+ vm_sync_t sync_flags = 0;
+ kern_return_t err;
+
+ if (flags & MS_SYNC)
+ sync_flags |= VM_SYNC_SYNCHRONOUS;
+ if (flags & MS_ASYNC)
+ sync_flags |= VM_SYNC_ASYNCHRONOUS;
+ if (flags & MS_INVALIDATE)
+ sync_flags |= VM_SYNC_INVALIDATE;
+
+ if (err = __vm_msync (__mach_task_self (),
+ (vm_address_t) addr, (vm_size_t) len, sync_flags))
+ {
+ errno = err;
+ return -1;
+ }
+ return 0;
+}
+#endif