1 files changed, 56 insertions, 0 deletions
diff --git a/REORG.TODO/support/xunistd.h b/REORG.TODO/support/xunistd.h
new file mode 100644
index 0000000000..151d743e1f
--- /dev/null
+++ b/REORG.TODO/support/xunistd.h
@@ -0,0 +1,56 @@
+/* POSIX-specific extra functions.
+   Copyright (C) 2016-2017 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/>.  */
+
+/* These wrapper functions use POSIX types and therefore cannot be
+   declared in <support/support.h>.  */
+
+#ifndef SUPPORT_XUNISTD_H
+#define SUPPORT_XUNISTD_H
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+__BEGIN_DECLS
+
+struct stat64;
+
+pid_t xfork (void);
+pid_t xwaitpid (pid_t, int *status, int flags);
+void xpipe (int[2]);
+void xdup2 (int, int);
+int xopen (const char *path, int flags, mode_t);
+void xstat (const char *path, struct stat64 *);
+void xmkdir (const char *path, mode_t);
+void xchroot (const char *path);
+
+/* Close the file descriptor.  Ignore EINTR errors, but terminate the
+   process on other errors.  */
+void xclose (int);
+
+/* Write the buffer.  Retry on short writes.  */
+void xwrite (int, const void *, size_t);
+
+/* Invoke mmap with a zero file offset.  */
+void *xmmap (void *addr, size_t length, int prot, int flags, int fd);
+
+void xmunmap (void *addr, size_t length);
+
+__END_DECLS
+
+#endif /* SUPPORT_XUNISTD_H */