Files
linux/arch/riscv/include/asm/vdso.h
Palmer Dabbelt a290f510a1 RISC-V: Fix VDSO build for !MMU
We don't have a VDSO for the !MMU configurations, so don't try to build
one.

Fixes: fde9c59aeb ("riscv: explicitly use symbol offsets for VDSO")
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-08-25 22:58:30 -07:00

34 lines
752 B
C

/* 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 therefor don't have one.
*/
#ifdef CONFIG_MMU
#include <linux/types.h>
#include <generated/vdso-offsets.h>
#ifndef CONFIG_GENERIC_TIME_VSYSCALL
struct vdso_data {
};
#endif
#define VDSO_SYMBOL(base, name) \
(void __user *)((unsigned long)(base) + __vdso_##name##_offset)
#endif /* CONFIG_MMU */
asmlinkage long sys_riscv_flush_icache(uintptr_t, uintptr_t, uintptr_t);
#endif /* _ASM_RISCV_VDSO_H */