arch/i386/varsyscall.S

/*
 * arch/i386/varsyscall.S
 *
 * Common tail-handling code for varadic system calls (which always
 * use the cdecl convention.)
 *
 * The arguments are on the stack; the system call number in %eax.
 */

#ifdef	_REGPARM

#define ARG(n)	(4*n+24)(%esp)
#define SYSNO	ARG(-2)

	.text
	.align	4
	.globl	__syscall_varadic
	.type	__syscall_varadic,@function
__syscall_varadic:
	pushl	%ebx
	pushl	%esi
	pushl	%edi
	pushl	%ebp

	movl	SYSNO,%eax
	movl	ARG(0),%ebx		# Syscall arguments
	movl	ARG(1),%ecx
	movl	ARG(2),%edx
	movl	ARG(3),%esi
	movl	ARG(4),%edi
	movl	ARG(5),%ebp

	jmp	__syscall_common_tail

	.size	__syscall_varadic,.-__syscall_varadic

#endif
1	/*
2	* arch/i386/varsyscall.S
3	*
4	* Common tail-handling code for varadic system calls (which always
5	* use the cdecl convention.)
6	*
7	* The arguments are on the stack; the system call number in %eax.
8	*/
9
10	#ifdef _REGPARM
11
12	#define ARG(n) (4*n+24)(%esp)
13	#define SYSNO ARG(-2)
14
15	.text
16	.align 4
17	.globl __syscall_varadic
18	.type __syscall_varadic,@function
19	__syscall_varadic:
20	pushl %ebx
21	pushl %esi
22	pushl %edi
23	pushl %ebp
24
25	movl SYSNO,%eax
26	movl ARG(0),%ebx # Syscall arguments
27	movl ARG(1),%ecx
28	movl ARG(2),%edx
29	movl ARG(3),%esi
30	movl ARG(4),%edi
31	movl ARG(5),%ebp
32
33	jmp __syscall_common_tail
34
35	.size __syscall_varadic,.-__syscall_varadic
36
37	#endif