1/* Stub versions of mutex_lock_solid/mutex_unlock_solid for no -lthreads.
2 Copyright (C) 1995-2022 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 <lock-intern.h>
20
21/* If pthread is linked in, it will define these functions itself to do
22 real pthread mutex locks. This file will only be linked in when
23 pthread is not used, and `mutexes' are in fact just spin locks (and
24 some unused storage). */
25
26void
27__mutex_lock_solid (void *lock)
28{
29 __spin_lock_solid (lock: lock);
30}
31
32void
33__mutex_unlock_solid (void *lock)
34{
35}
36

source code of glibc/mach/mutex-solid.c