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/* Copyright (C) 1995-1998,2002,2003,2005,2008 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <sysdep-cancel.h>
#include <socketcall.h>
#include <tls.h>
#define _NSIG 64
#define P(a, b) P2(a, b)
#define P2(a, b) a##b
.text
/* 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. */
ENTRY(do_paccept)
#ifdef SOCKOP_paccept
subl $6*4, %esp
cfi_adjust_cfa_offset(6*4)
movl (%eax), %ecx
movl %ecx, (%esp)
movl 4(%eax), %ecx
movl %ecx, 4(%esp)
movl 8(%eax), %ecx
movl %ecx, 8(%esp)
movl 12(%eax), %ecx
movl %ecx, 12(%esp)
movl $(_NSIG / 8), 16(%esp)
movl 16(%eax), %ecx
movl %ecx, 20(%esp)
movl $SYS_ify(socketcall), %eax /* System call number in %eax. */
movl $SOCKOP_paccept, %ebx /* Subcode is first arg to syscall. */
movl %esp, %ecx /* Address of args is 2nd arg. */
/* Do the system call trap. */
ENTER_KERNEL
addl $6*4, %esp
cfi_adjust_cfa_offset(-6*4)
/* %eax is < 0 if there was an error. */
cmpl $-125, %eax
jae SYSCALL_ERROR_LABEL
#else
movl $-ENOSYS, %eax
jmp SYSCALL_ERROR_LABEL
.section .gnu.glibc-stub.paccept
.previous
.section .gnu.warning.paccept
.string "warning: paccept is not implemented and will always fail"
.previous
#endif
L(pseudo_end):
ret
PSEUDO_END(do_paccept)
.globl paccept
ENTRY (paccept)
#ifdef CENABLE
SINGLE_THREAD_P
jne 1f
#endif
/* Save registers. */
movl %ebx, %edx
cfi_register (3, 2)
lea 4(%esp), %eax
call do_paccept
/* Restore registers. */
movl %edx, %ebx
cfi_restore (3)
ret
#ifdef CENABLE
/* We need one more register. */
1: pushl %esi
cfi_adjust_cfa_offset(4)
/* Enable asynchronous cancellation. */
CENABLE
movl %eax, %esi
cfi_offset(6, -8) /* %esi */
/* Save registers. */
movl %ebx, %edx
cfi_register (3, 2)
lea 8(%esp), %eax
call do_paccept
/* Restore registers. */
movl %edx, %ebx
cfi_restore (3)
/* Restore the cancellation. */
xchgl %esi, %eax
CDISABLE
/* Restore registers. */
movl %esi, %eax
popl %esi
cfi_restore (6)
cfi_adjust_cfa_offset(-4)
/* Successful; return the syscall's value. */
ret
#endif
PSEUDO_END (paccept)
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