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/* Copyright (C) 1991, 1992 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., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <sysdep.h>
.globl syscall_error
/* 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 specific function.
The .S files for the other calls just #define socket and #include this. */
ENTRY (socket)
/* Save registers. */
pushl %ebx
pushl %ecx
movl $__NR_socketcall, %eax /* System call number in %eax. */
/* Use ## so `socket' is a separate token that might be #define'd. */
movl $SYS_##socket, %ebx /* Subcode is first arg to syscall. */
lea 12(%esp), %ecx /* Address of args in 2nd arg. */
/* Do the system call trap. */
int $0x80
/* Restore registers. */
popl %ecx
popl %ebx
/* %eax is < 0 if there was an error. */
testl %eax, %eax
jl syscall_error
/* Successful; return the syscall's value. */
ret
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