1 files changed, 73 insertions, 0 deletions
diff --git a/gdbsupport/fileio.h b/gdbsupport/fileio.h
new file mode 100644
index 00000000000..9d33e467dd5
--- /dev/null
+++ b/gdbsupport/fileio.h
@@ -0,0 +1,73 @@
+/* File-I/O functions for GDB, the GNU debugger.
+
+   Copyright (C) 2003-2020 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef COMMON_FILEIO_H
+#define COMMON_FILEIO_H
+
+#include "gdb/fileio.h"
+#include <sys/stat.h>
+
+/* Convert a host-format errno value to a File-I/O error number.  */
+
+extern int host_to_fileio_error (int error);
+
+/* Convert File-I/O open flags FFLAGS to host format, storing
+   the result in *FLAGS.  Return 0 on success, -1 on error.  */
+
+extern int fileio_to_host_openflags (int fflags, int *flags);
+
+/* Convert File-I/O mode FMODE to host format, storing
+   the result in *MODE.  Return 0 on success, -1 on error.  */
+
+extern int fileio_to_host_mode (int fmode, mode_t *mode);
+
+/* Pack a host-format integer into a byte buffer in big-endian
+   format.  BYTES specifies the size of the integer to pack in
+   bytes.  */
+
+static inline void
+host_to_bigendian (LONGEST num, char *buf, int bytes)
+{
+  int i;
+
+  for (i = 0; i < bytes; ++i)
+    buf[i] = (num >> (8 * (bytes - i - 1))) & 0xff;
+}
+
+/* Pack a host-format integer into an fio_uint_t.  */
+
+static inline void
+host_to_fileio_uint (long num, fio_uint_t fnum)
+{
+  host_to_bigendian ((LONGEST) num, (char *) fnum, 4);
+}
+
+/* Pack a host-format time_t into an fio_time_t.  */
+
+static inline void
+host_to_fileio_time (time_t num, fio_time_t fnum)
+{
+  host_to_bigendian ((LONGEST) num, (char *) fnum, 4);
+}
+
+/* Pack a host-format struct stat into a struct fio_stat.  */
+
+extern void host_to_fileio_stat (struct stat *st, struct fio_stat *fst);
+
+#endif /* COMMON_FILEIO_H */