1 /* Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
20 #include <socketcall.h>
22 #define P(a, b) P2(a, b)
26 /* The socket-oriented system calls are handled unusally in Linux.
27 They are all gated through the single `socketcall' system call number.
28 `socketcall' takes two arguments: the first is the subcode, specifying
29 which socket function is being called; and the second is a pointer to
30 the arguments to the specific function.
32 The .S files for the other calls just #define socket and #include this. */
36 #define __socket P(__,socket)
38 #define __socket socket
48 movl $SYS_ify(socketcall), %eax /* System call number in %eax. */
50 /* Use ## so `socket' is a separate token that might be #define'd. */
51 movl $P(SOCKOP_,socket), %ebx /* Subcode is first arg to syscall. */
52 lea 4(%esp), %ecx /* Address of args is 2nd arg. */
54 /* Do the system call trap. */
57 /* Restore registers. */
60 /* %eax is < 0 if there was an error. */
62 jae SYSCALL_ERROR_LABEL
64 /* Successful; return the syscall's value. */
71 weak_alias (__socket, socket)