1/* Copyright (C) 2001-2022 Free Software Foundation, Inc.
2   This file is part of the GNU C Library.
3
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.
8
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.
13
14   You should have received a copy of the GNU Lesser General Public
15   License along with the GNU C Library; if not, see
16   <https://www.gnu.org/licenses/>.  */
17
18#include <sysdep.h>
19
20/* Please consult the file sysdeps/unix/sysv/linux/s390/sysdep.h for
21   more information about the value -4095 used below.*/
22
23ENTRY (syscall)
24	stmg   %r6,%r7,48(%r15)    /* Save registers.  */
25	cfi_offset (%r7,-104)
26	cfi_offset (%r6,-112)
27
28	lgr    %r1,%r2		   /* Move syscall number.  */
29	lgr    %r2,%r3		   /* First parameter.	*/
30	lgr    %r3,%r4		   /* Second parameter.	 */
31	lgr    %r4,%r5		   /* Third parameter.	*/
32	lgr    %r5,%r6		   /* Fourth parameter.	 */
33	lmg    %r6,%r7,160(%r15)   /* Fifth / Sixth parameter.	*/
34	svc    0
35
36	lmg    %r6,%r7,48(%r15)    /* Load registers.  */
37
38	lghi   %r0,-4095
39	clgr   %r2,%r0		   /* Check R2 for error.  */
40	jgnl   SYSCALL_ERROR_LABEL
41	br     %r14		   /* Return to caller.	 */
42PSEUDO_END (syscall)
43