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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2012 ARM Limited
* Copyright (C) 2014 Regents of the University of California
* Copyright (C) 2017 SiFive
*/
#ifndef _ASM_RISCV_VDSO_H
#define _ASM_RISCV_VDSO_H
/*
* All systems with an MMU have a VDSO, but systems without an MMU don't
* support shared libraries and therefore don't have one.
*/
#ifdef CONFIG_MMU
#define __VDSO_PAGES 4
#ifndef __ASSEMBLER__
#include <generated/vdso-offsets.h>
#define VDSO_SYMBOL(base, name) \
(void __user *)((unsigned long)(base) + __vdso_##name##_offset)
#ifdef CONFIG_COMPAT
#include <generated/compat_vdso-offsets.h>
#define COMPAT_VDSO_SYMBOL(base, name) \
(void __user *)((unsigned long)(base) + compat__vdso_##name##_offset)
extern char compat_vdso_start[], compat_vdso_end[];
#endif /* CONFIG_COMPAT */
extern char vdso_start[], vdso_end[];
#endif /* !__ASSEMBLER__ */
#endif /* CONFIG_MMU */
#endif /* _ASM_RISCV_VDSO_H */
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