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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archinsn.c (676B)

      1// SPDX-License-Identifier: GPL-2.0
      2#include "archinsn.h"
      3#include "event.h"
      4#include "machine.h"
      5#include "thread.h"
      6#include "symbol.h"
      7#include "../../../../arch/x86/include/asm/insn.h"
      8
      9void arch_fetch_insn(struct perf_sample *sample,
     10		     struct thread *thread,
     11		     struct machine *machine)
     12{
     13	struct insn insn;
     14	int len, ret;
     15	bool is64bit = false;
     16
     17	if (!sample->ip)
     18		return;
     19	len = thread__memcpy(thread, machine, sample->insn, sample->ip, sizeof(sample->insn), &is64bit);
     20	if (len <= 0)
     21		return;
     22
     23	ret = insn_decode(&insn, sample->insn, len,
     24			  is64bit ? INSN_MODE_64 : INSN_MODE_32);
     25	if (ret >= 0 && insn.length <= len)
     26		sample->insn_len = insn.length;
     27}