RISC-V: Add ipc_priv.h

This contains a definition of __IPC_64 that matches the RISC-V Linux
ABI.

2018-01-29  Darius Rad  <darius@bluespec.com>

        * sysdeps/unix/sysv/linux/riscv/ipc_priv.h: New file.

2 files changed, 25 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index bea7598257..ff5a41ef3a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2018-01-29  Darius Rad  <darius@bluespec.com>
+
+	* sysdeps/unix/sysv/linux/riscv/ipc_priv.h: New file.
+
 2018-01-29  Palmer Dabbelt  <palmer@sifive.com>
 
 	* sysdeps/init_array/crti.S (.section .init_array): Add
diff --git a/sysdeps/unix/sysv/linux/riscv/ipc_priv.h b/sysdeps/unix/sysv/linux/riscv/ipc_priv.h
new file mode 100644
index 0000000000..937f06adfb
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/riscv/ipc_priv.h
@@ -0,0 +1,21 @@
+/* Old SysV permission definition for Linux.  RISC-V version.
+   Copyright (C) 2018 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/ipc.h>  /* For __key_t  */
+
+#define __IPC_64	0x0