socket implementation for Linux/CRIS.

diff --git a/sysdeps/unix/sysv/linux/cris/socket.S b/sysdeps/unix/sysv/linux/cris/socket.S
new file mode 100644 (file)
index 0000000..06832ec
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/cris/socket.S
@@ -0,0 +1,96 @@
+/* Copyright (C) 1995, 1996, 1997, 1999, 2001 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+#include <socketcall.h>
+
+#define P(a, b) P2(a, b)
+#define P2(a, b) a##b
+
+/* The socket-oriented system calls are handled unusally in Linux.
+   They are all gated through the single `socketcall' system call number.
+   `socketcall' takes two arguments: the first is the subcode, specifying
+   which socket function is being called; and the second is a pointer to
+   the arguments to the specific function.
+
+   The .S files for the other calls just #define socket and #include this.
+   They also #define a 'number-of-arguments' word in NARGS, which
+   defaults to 3.  */
+
+#ifndef NARGS
+#ifdef socket
+#error NARGS not defined
+#endif
+#define NARGS 3
+#endif
+
+       .syntax no_register_prefix
+
+#ifndef __socket
+#define __socket P(__,socket)
+#endif
+
+ENTRY(__socket)
+       subq    NARGS*4,sp
+
+#if NARGS >= 2
+       move.d  sp,r9
+       move.d  r10,[r9+]
+#else
+       move.d  r10,[sp]
+#endif
+#if NARGS >= 2
+       move.d  r11,[r9+]
+#endif
+#if NARGS >= 3
+       move.d  r12,[r9+]
+#endif
+#if NARGS >= 4
+       move.d  r13,[r9+]
+#endif
+#if NARGS >= 5
+       move.d  [sp+NARGS*4],r13
+       move.d  r13,[r9+]
+#endif
+#if NARGS >= 6
+       move.d  [sp+NARGS*4+4],r13
+       move.d  r13,[r9+]
+#endif
+#if NARGS >= 7
+       move.d  [sp+NARGS*4+8],r13
+       move.d  r13,[r9+]
+#endif
+#if NARGS >= 8
+       move.d  [sp+NARGS*4+12],r13
+       move.d  r13,[r9+]
+#endif
+#if NARGS >= 9
+#error Too many arguments!
+#endif
+       moveq   P(SOCKOP_,socket),r10
+       move.d  sp,r11
+       movu.w  SYS_ify(socketcall),r9
+       break   13
+       cmps.w  -4096,r10
+       bhs     0f
+       addq    NARGS*4,sp
+       Ret
+       nop
+PSEUDO_END (__socket)
+
+weak_alias (__socket, socket)