arch/i386/socketcall.S

#
# socketcall.S
#
# Socketcalls use the following convention:
# %eax = __NR_socketcall
# %ebx = socketcall number
# %ecx = pointer to arguments (up to 6)
#

#include <asm/unistd.h>

#ifdef __i386__

	.text
	.align 4
	.globl __socketcall_common
	.type __socketcall_common, @function

__socketcall_common:
	xchgl	%ebx,(%esp)	# The stub passes the socketcall # on stack

#ifdef	_REGPARM
	pushl	16(%esp)	# Arg 6
	pushl	16(%esp)	# Arg 5
	pushl	16(%esp)	# Arg 4
	pushl	%ecx
	pushl	%edx
	pushl	%eax
	movl	%esp,%ecx
#else
	leal	8(%esp),%ecx	# Arguments already contiguous on-stack
#endif

	movl	$__NR_socketcall,%eax
	int	$0x80

#ifdef	_REGPARM
	addl	$6*4, %esp
#endif

	cmpl	$-4095,%eax	# Error return?

	popl	%ebx

	jb	1f

	negl	%eax
	movl	%eax,errno
	orl	$-1,%eax	# Return -1
1:
	ret

	.size __socketcall_common,.-__socketcall_common

#endif
1	#
2	# socketcall.S
3	#
4	# Socketcalls use the following convention:
5	# %eax = __NR_socketcall
6	# %ebx = socketcall number
7	# %ecx = pointer to arguments (up to 6)
8	#
9
10	#include <asm/unistd.h>
11
12	#ifdef __i386__
13
14	.text
15	.align 4
16	.globl __socketcall_common
17	.type __socketcall_common, @function
18
19	__socketcall_common:
20	xchgl %ebx,(%esp) # The stub passes the socketcall # on stack
21
22	#ifdef _REGPARM
23	pushl 16(%esp) # Arg 6
24	pushl 16(%esp) # Arg 5
25	pushl 16(%esp) # Arg 4
26	pushl %ecx
27	pushl %edx
28	pushl %eax
29	movl %esp,%ecx
30	#else
31	leal 8(%esp),%ecx # Arguments already contiguous on-stack
32	#endif
33
34	movl $__NR_socketcall,%eax
35	int $0x80
36
37	#ifdef _REGPARM
38	addl $6*4, %esp
39	#endif
40
41	cmpl $-4095,%eax # Error return?
42
43	popl %ebx
44
45	jb 1f
46
47	negl %eax
48	movl %eax,errno
49	orl $-1,%eax # Return -1
50	1:
51	ret
52
53	.size __socketcall_common,.-__socketcall_common
54
55	#endif