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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signal.h (650B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef __ARM64_ASM_SIGNAL_H
      3#define __ARM64_ASM_SIGNAL_H
      4
      5#include <asm/memory.h>
      6#include <uapi/asm/signal.h>
      7#include <uapi/asm/siginfo.h>
      8
      9static inline void __user *arch_untagged_si_addr(void __user *addr,
     10						 unsigned long sig,
     11						 unsigned long si_code)
     12{
     13	/*
     14	 * For historical reasons, all bits of the fault address are exposed as
     15	 * address bits for watchpoint exceptions. New architectures should
     16	 * handle the tag bits consistently.
     17	 */
     18	if (sig == SIGTRAP && si_code == TRAP_BRKPT)
     19		return addr;
     20
     21	return untagged_addr(addr);
     22}
     23#define arch_untagged_si_addr arch_untagged_si_addr
     24
     25#endif