blob: 50ffdab9c5def074f6e3d53e208db31be0b1732c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
/*
* QEMU user-only mmap lock, with stubs for system mode
*
* Copyright (c) 2003 Fabrice Bellard
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#ifndef EXEC_MMAP_LOCK_H
#define EXEC_MMAP_LOCK_H
#ifdef CONFIG_USER_ONLY
void TSA_NO_TSA mmap_lock(void);
void TSA_NO_TSA mmap_unlock(void);
bool have_mmap_lock(void);
static inline void mmap_unlock_guard(void *unused)
{
mmap_unlock();
}
#define WITH_MMAP_LOCK_GUARD() \
for (int _mmap_lock_iter __attribute__((cleanup(mmap_unlock_guard))) \
= (mmap_lock(), 0); _mmap_lock_iter == 0; _mmap_lock_iter = 1)
#else
static inline void mmap_lock(void) {}
static inline void mmap_unlock(void) {}
#define WITH_MMAP_LOCK_GUARD()
#endif /* CONFIG_USER_ONLY */
#endif /* EXEC_MMAP_LOCK_H */
|
