1 /* Indirect system call. Linux generic implementation.
2 Copyright (C) 1997-2021 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library. If not, see
17 <https://www.gnu.org/licenses/>. */
18
19 #include <stdarg.h>
20 #include <sysdep.h>
21
22 long int
syscall(long int number,...)23 syscall (long int number, ...)
24 {
25 va_list args;
26
27 va_start (args, number);
28 long int a0 = va_arg (args, long int);
29 long int a1 = va_arg (args, long int);
30 long int a2 = va_arg (args, long int);
31 long int a3 = va_arg (args, long int);
32 long int a4 = va_arg (args, long int);
33 long int a5 = va_arg (args, long int);
34 va_end (args);
35
36 int r = INTERNAL_SYSCALL_NCS_CALL (number, a0, a1, a2, a3, a4, a5);
37 if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (r)))
38 {
39 __set_errno (-r);
40 return -1;
41 }
42 return r;
43 }
44