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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ucmpdi2.c (538B)

      1// SPDX-License-Identifier: GPL-2.0
      2#include <linux/export.h>
      3
      4#include "libgcc.h"
      5
      6word_type __ucmpdi2(unsigned long long a, unsigned long long b)
      7{
      8	const DWunion au = {.ll = a};
      9	const DWunion bu = {.ll = b};
     10
     11	if ((unsigned int) au.s.high < (unsigned int) bu.s.high)
     12		return 0;
     13	else if ((unsigned int) au.s.high > (unsigned int) bu.s.high)
     14		return 2;
     15	if ((unsigned int) au.s.low < (unsigned int) bu.s.low)
     16		return 0;
     17	else if ((unsigned int) au.s.low > (unsigned int) bu.s.low)
     18		return 2;
     19	return 1;
     20}
     21EXPORT_SYMBOL(__ucmpdi2);