1/* Copyright (C) 1999-2022 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
20ENTRY(syscall)
21	/* We are called like so:
22	   {out0,out1,...,out6} registers -> {NR, arg1, ..., arg6}
23	   Shift the register window so that {out1...out6} are available
24	   in {out0...out5} like the kernel syscall handler expects.  */
25	alloc r2=ar.pfs,1,0,8,0
26	mov r15=r32		/* syscall number */
27	break __IA64_BREAK_SYSCALL
28	;;
29	cmp.ne p6,p0=-1,r10	/* r10 = -1 on error */
30(p6)	ret
31	br.cond.spnt.few __syscall_error
32PSEUDO_END(syscall)
33