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ff026950 | 1 | /* prctl - Linux specific syscall. |
6d7e8eda | 2 | Copyright (C) 2020-2023 Free Software Foundation, Inc. |
ff026950 L |
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 <sysdep.h> | |
20 | #include <stdarg.h> | |
21 | #include <sys/prctl.h> | |
22 | ||
23 | /* Unconditionally read all potential arguments. This may pass | |
24 | garbage values to the kernel, but avoids the need for teaching | |
25 | glibc the argument counts of individual options (including ones | |
26 | that are added to the kernel in the future). */ | |
27 | ||
28 | int | |
29 | __prctl (int option, ...) | |
30 | { | |
31 | va_list arg; | |
32 | va_start (arg, option); | |
33 | unsigned long int arg2 = va_arg (arg, unsigned long int); | |
34 | unsigned long int arg3 = va_arg (arg, unsigned long int); | |
35 | unsigned long int arg4 = va_arg (arg, unsigned long int); | |
36 | unsigned long int arg5 = va_arg (arg, unsigned long int); | |
37 | va_end (arg); | |
38 | return INLINE_SYSCALL_CALL (prctl, option, arg2, arg3, arg4, arg5); | |
39 | } | |
40 | ||
41 | libc_hidden_def (__prctl) | |
42 | weak_alias (__prctl, prctl) | |
b39ffab8 FW |
43 | #if __TIMESIZE != 64 |
44 | weak_alias (__prctl, __prctl_time64) | |
45 | #endif |