1 /* Auxiliary functions to issue the clone syscall.
2 Copyright (C) 2021-2024 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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/>. */
20 # include <support/check.h>
21 # include <stackinfo.h> /* For _STACK_GROWS_{UP,DOWN}. */
25 xclone (int (*fn
) (void *arg
), void *arg
, void *stack
, size_t stack_size
,
30 # if _STACK_GROWS_DOWN
31 r
= clone (fn
, stack
+ stack_size
, flags
, arg
, /* ptid */ NULL
,
32 /* tls */ NULL
, /* ctid */ NULL
);
33 # elif _STACK_GROWS_UP
34 r
= clone (fn
, stack
, flags
, arg
, /* ptid */ NULL
, /* tls */ NULL
, NULL
);
38 FAIL_EXIT1 ("clone: %m");