RISC-V: Add socket-constants.h for RV32

Add the latest versionf of the socket-constants.h based on new Linux

diff --git a/sysdeps/unix/sysv/linux/riscv/bits/socket-constants.h b/sysdeps/unix/sysv/linux/riscv/bits/socket-constants.h
new file mode 100644 (file)
index 0000000..7ecdfcb
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/riscv/bits/socket-constants.h
@@ -0,0 +1,46 @@
+/* Socket constants which vary among Linux architectures.  Version for RV32.
+   Copyright (C) 2020 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
+   <https://www.gnu.org/licenses/>.  */
+
+#ifndef _SYS_SOCKET_H
+# error "Never include <bits/socket-constants.h> directly; use <sys/socket.h> instead."
+#endif
+
+#define SOL_SOCKET 1
+#define SO_ACCEPTCONN 30
+#define SO_BROADCAST 6
+#define SO_DONTROUTE 5
+#define SO_ERROR 4
+#define SO_KEEPALIVE 9
+#define SO_LINGER 13
+#define SO_OOBINLINE 10
+#define SO_RCVBUF 8
+#define SO_RCVLOWAT 18
+#if __riscv_xlen == 32
+# define SO_RCVTIMEO 66
+#else
+# define SO_RCVTIMEO 20
+#endif
+#define SO_REUSEADDR 2
+#define SO_SNDBUF 7
+#define SO_SNDLOWAT 19
+#if __riscv_xlen == 32
+# define SO_SNDTIMEO 67
+#else
+# define SO_SNDTIMEO 21
+#endif
+#define SO_TYPE 3