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4d3ad3c3ba
Split out mmap_lock, et al from page-protection.h to a new header. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
33 lines
759 B
C
33 lines
759 B
C
/*
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* QEMU user-only mmap lock, with stubs for system mode
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*
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* Copyright (c) 2003 Fabrice Bellard
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*
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* SPDX-License-Identifier: LGPL-2.1-or-later
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*/
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#ifndef EXEC_MMAP_LOCK_H
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#define EXEC_MMAP_LOCK_H
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#ifdef CONFIG_USER_ONLY
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void TSA_NO_TSA mmap_lock(void);
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void TSA_NO_TSA mmap_unlock(void);
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bool have_mmap_lock(void);
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static inline void mmap_unlock_guard(void *unused)
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{
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mmap_unlock();
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}
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#define WITH_MMAP_LOCK_GUARD() \
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for (int _mmap_lock_iter __attribute__((cleanup(mmap_unlock_guard))) \
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= (mmap_lock(), 0); _mmap_lock_iter == 0; _mmap_lock_iter = 1)
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#else
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static inline void mmap_lock(void) {}
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static inline void mmap_unlock(void) {}
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#define WITH_MMAP_LOCK_GUARD()
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#endif /* CONFIG_USER_ONLY */
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#endif /* EXEC_MMAP_LOCK_H */
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