cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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vdso.h (784B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2
      3#ifndef __ASM_CSKY_VDSO_H
      4#define __ASM_CSKY_VDSO_H
      5
      6#include <linux/types.h>
      7
      8#ifndef GENERIC_TIME_VSYSCALL
      9struct vdso_data {
     10};
     11#endif
     12
     13/*
     14 * The VDSO symbols are mapped into Linux so we can just use regular symbol
     15 * addressing to get their offsets in userspace.  The symbols are mapped at an
     16 * offset of 0, but since the linker must support setting weak undefined
     17 * symbols to the absolute address 0 it also happens to support other low
     18 * addresses even when the code model suggests those low addresses would not
     19 * otherwise be available.
     20 */
     21#define VDSO_SYMBOL(base, name)							\
     22({										\
     23	extern const char __vdso_##name[];					\
     24	(void __user *)((unsigned long)(base) + __vdso_##name);			\
     25})
     26
     27#endif /* __ASM_CSKY_VDSO_H */